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netlink: pass extended ACK struct to parsing functions
[mirror_ubuntu-hirsute-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
66cd794e 6 * Copyright 2015-2017 Intel Deutschland GmbH
55682965
JB		 7 */
8
9#include <linux/if.h>
10#include <linux/module.h>
11#include <linux/err.h>
5a0e3ad6 12#include <linux/slab.h>
55682965
JB		 13#include <linux/list.h>
14#include <linux/if_ether.h>
15#include <linux/ieee80211.h>
16#include <linux/nl80211.h>
17#include <linux/rtnetlink.h>
18#include <linux/netlink.h>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
55682965 35/* the netlink family */
489111e5 36static struct genl_family nl80211_fam;
55682965 37
2a94fe48
JB		 38/* multicast groups */
39enum nl80211_multicast_groups {
40 NL80211_MCGRP_CONFIG,
41 NL80211_MCGRP_SCAN,
42 NL80211_MCGRP_REGULATORY,
43 NL80211_MCGRP_MLME,
567ffc35 44 NL80211_MCGRP_VENDOR,
50bcd31d 45 NL80211_MCGRP_NAN,
2a94fe48
JB		 46 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
47};
48
49static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 50 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
51 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
52 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
53 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
54 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
50bcd31d 55 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
2a94fe48 56#ifdef CONFIG_NL80211_TESTMODE
71b836ec 57 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 58#endif
59};
60
89a54e48
JB		 61/* returns ERR_PTR values */
62static struct wireless_dev *
63__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 64{
89a54e48
JB		 65 struct cfg80211_registered_device *rdev;
66 struct wireless_dev *result = NULL;
67 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
68 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
69 u64 wdev_id;
70 int wiphy_idx = -1;
71 int ifidx = -1;
55682965 72
5fe231e8 73 ASSERT_RTNL();
55682965 74
89a54e48
JB		 75 if (!have_ifidx && !have_wdev_id)
76 return ERR_PTR(-EINVAL);
55682965 77
89a54e48
JB		 78 if (have_ifidx)
79 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
80 if (have_wdev_id) {
81 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
82 wiphy_idx = wdev_id >> 32;
55682965
JB		 83 }
84
89a54e48
JB		 85 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
86 struct wireless_dev *wdev;
87
88 if (wiphy_net(&rdev->wiphy) != netns)
89 continue;
90
91 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
92 continue;
93
53873f13 94 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 95 if (have_ifidx && wdev->netdev &&
96 wdev->netdev->ifindex == ifidx) {
97 result = wdev;
98 break;
99 }
100 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
101 result = wdev;
102 break;
103 }
104 }
89a54e48
JB		 105
106 if (result)
107 break;
108 }
109
110 if (result)
111 return result;
112 return ERR_PTR(-ENODEV);
55682965
JB		 113}
114
a9455408 115static struct cfg80211_registered_device *
878d9ec7 116__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 117{
7fee4778
JB		 118 struct cfg80211_registered_device *rdev = NULL, *tmp;
119 struct net_device *netdev;
a9455408 120
5fe231e8 121 ASSERT_RTNL();
a9455408 122
878d9ec7 123 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 124 !attrs[NL80211_ATTR_IFINDEX] &&
125 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 126 return ERR_PTR(-EINVAL);
127
878d9ec7 128 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 129 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 130 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 131
89a54e48
JB		 132 if (attrs[NL80211_ATTR_WDEV]) {
133 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
134 struct wireless_dev *wdev;
135 bool found = false;
136
137 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
138 if (tmp) {
139 /* make sure wdev exists */
53873f13 140 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 141 if (wdev->identifier != (u32)wdev_id)
142 continue;
143 found = true;
144 break;
145 }
89a54e48
JB		 146
147 if (!found)
148 tmp = NULL;
149
150 if (rdev && tmp != rdev)
151 return ERR_PTR(-EINVAL);
152 rdev = tmp;
153 }
154 }
155
878d9ec7
JB		 156 if (attrs[NL80211_ATTR_IFINDEX]) {
157 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 158
7f2b8562 159 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 160 if (netdev) {
161 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 162 tmp = wiphy_to_rdev(
163 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 164 else
165 tmp = NULL;
166
7fee4778
JB		 167 /* not wireless device -- return error */
168 if (!tmp)
169 return ERR_PTR(-EINVAL);
170
171 /* mismatch -- return error */
172 if (rdev && tmp != rdev)
173 return ERR_PTR(-EINVAL);
174
175 rdev = tmp;
a9455408 176 }
a9455408 177 }
a9455408 178
4f7eff10
JB		 179 if (!rdev)
180 return ERR_PTR(-ENODEV);
a9455408 181
4f7eff10
JB		 182 if (netns != wiphy_net(&rdev->wiphy))
183 return ERR_PTR(-ENODEV);
184
185 return rdev;
a9455408
JB		 186}
187
188/*
189 * This function returns a pointer to the driver
190 * that the genl_info item that is passed refers to.
a9455408
JB		 191 *
192 * The result of this can be a PTR_ERR and hence must
193 * be checked with IS_ERR() for errors.
194 */
195static struct cfg80211_registered_device *
4f7eff10 196cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 197{
5fe231e8 198 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 199}
200
55682965 201/* policy for the attributes */
8cd4d456 202static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 203 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
204 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 205 .len = 20-1 },
31888487 206 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 207
72bdcf34 208 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 209 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 210 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
211 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
212 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
213
b9a5f8ca
JM		 214 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
215 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
216 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
217 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 218 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 219 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 220
221 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
222 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
223 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 224
e007b857
EP		 225 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
226 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 227
b9454e83 228 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 229 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
230 .len = WLAN_MAX_KEY_LEN },
231 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
232 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
233 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 234 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 235 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 236
237 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
238 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
239 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
240 .len = IEEE80211_MAX_DATA_LEN },
241 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
242 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 243 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
244 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
245 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
246 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
247 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 248 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 249 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 250 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 251 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 252 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 253 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 254
b2e1b302
LR		 255 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
256 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
257
9f1ba906
JM		 258 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
259 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
260 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 261 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
262 .len = NL80211_MAX_SUPP_RATES },
50b12f59 263 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 264
24bdd9f4 265 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 266 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 267
6c739419 268 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 269
270 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
271 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
272 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 273 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
274 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 275
276 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
277 .len = IEEE80211_MAX_SSID_LEN },
278 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
279 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 280 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 281 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 282 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 283 [NL80211_ATTR_STA_FLAGS2] = {
284 .len = sizeof(struct nl80211_sta_flag_update),
285 },
3f77316c 286 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 287 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
288 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 289 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
290 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
291 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 292 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 293 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 294 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
295 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 296 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
297 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 298 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 299 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
300 .len = IEEE80211_MAX_DATA_LEN },
301 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 302 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 303 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 304 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 305 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 306 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
307 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 308 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 309 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
310 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 311 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 312 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 313 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 314 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 315 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 316 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 317 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 318 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 319 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 320 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
321 .len = IEEE80211_MAX_DATA_LEN },
322 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 324 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 325 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 326 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 327 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
328 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
329 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
330 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
331 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 332 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 333 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 334 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 336 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 337 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
338 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
339 .len = NL80211_HT_CAPABILITY_LEN
340 },
1d9d9213 341 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 342 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 343 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 344 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 345 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
11b6b5a4 346 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
f461be3e 347 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 348 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 349 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
350 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 351 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
352 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 353 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
354 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 355 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 356 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
357 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
358 .len = NL80211_VHT_CAPABILITY_LEN,
359 },
355199e0
JM		 360 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
361 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
362 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 363 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 364 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
365 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
366 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 367 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
368 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 369 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
370 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 371 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 372 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 373 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
374 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
375 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 376 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
377 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 378 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
379 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 380 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 381 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 382 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 383 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 384 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
385 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
386 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 387 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 388 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 389 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 390 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 391 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 392 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 393 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 394 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 395 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 396 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
397 .len = VHT_MUMIMO_GROUPS_DATA_LEN
398 },
399 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
cb3b7d87 400 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
8585989d 401 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
a442b761 402 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
348bd456
JM		 403 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
404 .len = FILS_MAX_KEK_LEN },
405 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
ce0ce13a 406 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
2fa436b3 407 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
bf95ecdb 408 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
409 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
410 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
411 },
3093ebbe 412 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
55682965
JB		 413};
414
e31b8213 415/* policy for the key attributes */
b54452b0 416static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 417 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 418 [NL80211_KEY_IDX] = { .type = NLA_U8 },
419 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 420 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 421 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
422 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 423 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 424 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
425};
426
427/* policy for the key default flags */
428static const struct nla_policy
429nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
430 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
431 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 432};
433
f83ace3b 434#ifdef CONFIG_PM
ff1b6e69
JB		 435/* policy for WoWLAN attributes */
436static const struct nla_policy
437nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
438 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
440 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 442 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
444 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
445 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 446 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 447 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 448};
449
450static const struct nla_policy
451nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
452 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
453 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
454 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
455 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
456 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
457 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
458 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
459 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
460 },
461 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
462 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
463 },
464 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
465 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
466 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69 467};
f83ace3b 468#endif /* CONFIG_PM */
ff1b6e69 469
be29b99a
AK		 470/* policy for coalesce rule attributes */
471static const struct nla_policy
472nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
473 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
474 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
475 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
476};
477
e5497d76
JB		 478/* policy for GTK rekey offload attributes */
479static const struct nla_policy
480nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
481 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
482 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
483 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
484};
485
a1f1c21c
LC		 486static const struct nla_policy
487nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 488 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 489 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 490 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 491};
492
3b06d277
AS		 493static const struct nla_policy
494nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
495 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
496 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
497};
498
38de03d2
AS		 499static const struct nla_policy
500nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
501 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
502 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
503 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
504 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
505 },
506};
507
a442b761
AB		 508/* policy for NAN function attributes */
509static const struct nla_policy
510nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
511 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
512 [NL80211_NAN_FUNC_SERVICE_ID] = { .type = NLA_BINARY,
513 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
514 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
515 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
516 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
517 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
518 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
519 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
520 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
521 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
522 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
523 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
524 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
525 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
526 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
527 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
528 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
529};
530
531/* policy for Service Response Filter attributes */
532static const struct nla_policy
533nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
534 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
535 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
536 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
537 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
538 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
539};
540
97990a06
JB		 541static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
542 struct netlink_callback *cb,
543 struct cfg80211_registered_device **rdev,
544 struct wireless_dev **wdev)
a043897a 545{
97990a06 546 int err;
a043897a 547
97990a06
JB		 548 if (!cb->args[0]) {
549 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 550 genl_family_attrbuf(&nl80211_fam),
fceb6435 551 nl80211_fam.maxattr, nl80211_policy, NULL);
97990a06 552 if (err)
ea90e0dc 553 return err;
67748893 554
c90c39da
JB		 555 *wdev = __cfg80211_wdev_from_attrs(
556 sock_net(skb->sk),
557 genl_family_attrbuf(&nl80211_fam));
ea90e0dc
JB		 558 if (IS_ERR(*wdev))
559 return PTR_ERR(*wdev);
f26cbf40 560 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 561 /* 0 is the first index - add 1 to parse only once */
562 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 563 cb->args[1] = (*wdev)->identifier;
564 } else {
c319d50b
JB		 565 /* subtract the 1 again here */
566 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 567 struct wireless_dev *tmp;
67748893 568
ea90e0dc
JB		 569 if (!wiphy)
570 return -ENODEV;
f26cbf40 571 *rdev = wiphy_to_rdev(wiphy);
97990a06 572 *wdev = NULL;
67748893 573
53873f13 574 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 575 if (tmp->identifier == cb->args[1]) {
576 *wdev = tmp;
577 break;
578 }
579 }
67748893 580
ea90e0dc
JB		 581 if (!*wdev)
582 return -ENODEV;
67748893
JB		 583 }
584
67748893 585 return 0;
67748893
JB		 586}
587
f4a11bb0
JB		 588/* IE validation */
589static bool is_valid_ie_attr(const struct nlattr *attr)
590{
591 const u8 *pos;
592 int len;
593
594 if (!attr)
595 return true;
596
597 pos = nla_data(attr);
598 len = nla_len(attr);
599
600 while (len) {
601 u8 elemlen;
602
603 if (len < 2)
604 return false;
605 len -= 2;
606
607 elemlen = pos[1];
608 if (elemlen > len)
609 return false;
610
611 len -= elemlen;
612 pos += 2 + elemlen;
613 }
614
615 return true;
616}
617
55682965 618/* message building helper */
15e47304 619static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 620 int flags, u8 cmd)
621{
622 /* since there is no private header just add the generic one */
15e47304 623 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 624}
625
5dab3b8a 626static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 627 struct ieee80211_channel *chan,
628 bool large)
5dab3b8a 629{
ea077c1c
RL		 630 /* Some channels must be completely excluded from the
631 * list to protect old user-space tools from breaking
632 */
633 if (!large && chan->flags &
634 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
635 return 0;
636
9360ffd1
DM		 637 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
638 chan->center_freq))
639 goto nla_put_failure;
5dab3b8a 640
9360ffd1
DM		 641 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
642 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
643 goto nla_put_failure;
8fe02e16
LR		 644 if (chan->flags & IEEE80211_CHAN_NO_IR) {
645 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
646 goto nla_put_failure;
647 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
648 goto nla_put_failure;
649 }
cdc89b97
JB		 650 if (chan->flags & IEEE80211_CHAN_RADAR) {
651 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
652 goto nla_put_failure;
653 if (large) {
654 u32 time;
655
656 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
657
658 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
659 chan->dfs_state))
660 goto nla_put_failure;
661 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
662 time))
663 goto nla_put_failure;
089027e5
JD		 664 if (nla_put_u32(msg,
665 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
666 chan->dfs_cac_ms))
667 goto nla_put_failure;
cdc89b97
JB		 668 }
669 }
5dab3b8a 670
fe1abafd
JB		 671 if (large) {
672 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
673 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
674 goto nla_put_failure;
675 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
676 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
677 goto nla_put_failure;
678 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
679 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
680 goto nla_put_failure;
681 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
682 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
683 goto nla_put_failure;
570dbde1
DS		 684 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
685 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
686 goto nla_put_failure;
06f207fc
AN		 687 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
688 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 689 goto nla_put_failure;
ea077c1c
RL		 690 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
691 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
692 goto nla_put_failure;
693 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
694 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
695 goto nla_put_failure;
fe1abafd
JB		 696 }
697
9360ffd1
DM		 698 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
699 DBM_TO_MBM(chan->max_power)))
700 goto nla_put_failure;
5dab3b8a
LR		 701
702 return 0;
703
704 nla_put_failure:
705 return -ENOBUFS;
706}
707
55682965
JB		 708/* netlink command implementations */
709
b9454e83
JB		 710struct key_parse {
711 struct key_params p;
712 int idx;
e31b8213 713 int type;
b9454e83 714 bool def, defmgmt;
dbd2fd65 715 bool def_uni, def_multi;
b9454e83
JB		 716};
717
718static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
719{
720 struct nlattr *tb[NL80211_KEY_MAX + 1];
721 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
fceb6435 722 nl80211_key_policy, NULL);
b9454e83
JB		 723 if (err)
724 return err;
725
726 k->def = !!tb[NL80211_KEY_DEFAULT];
727 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
728
dbd2fd65
JB		 729 if (k->def) {
730 k->def_uni = true;
731 k->def_multi = true;
732 }
733 if (k->defmgmt)
734 k->def_multi = true;
735
b9454e83
JB		 736 if (tb[NL80211_KEY_IDX])
737 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
738
739 if (tb[NL80211_KEY_DATA]) {
740 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
741 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
742 }
743
744 if (tb[NL80211_KEY_SEQ]) {
745 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
746 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
747 }
748
749 if (tb[NL80211_KEY_CIPHER])
750 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
751
e31b8213
JB		 752 if (tb[NL80211_KEY_TYPE]) {
753 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
754 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
755 return -EINVAL;
756 }
757
dbd2fd65
JB		 758 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
759 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 760
2da8f419
JB		 761 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
762 tb[NL80211_KEY_DEFAULT_TYPES],
fceb6435 763 nl80211_key_default_policy, NULL);
dbd2fd65
JB		 764 if (err)
765 return err;
766
767 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
768 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
769 }
770
b9454e83
JB		 771 return 0;
772}
773
774static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
775{
776 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
777 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
778 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
779 }
780
781 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
782 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
783 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
784 }
785
786 if (info->attrs[NL80211_ATTR_KEY_IDX])
787 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
788
789 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
790 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
791
792 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
793 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
794
dbd2fd65
JB		 795 if (k->def) {
796 k->def_uni = true;
797 k->def_multi = true;
798 }
799 if (k->defmgmt)
800 k->def_multi = true;
801
e31b8213
JB		 802 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
803 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
804 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
805 return -EINVAL;
806 }
807
dbd2fd65
JB		 808 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
809 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
fceb6435
JB		 810 int err = nla_parse_nested(kdt,
811 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
812 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
813 nl80211_key_default_policy, NULL);
dbd2fd65
JB		 814 if (err)
815 return err;
816
817 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
818 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
819 }
820
b9454e83
JB		 821 return 0;
822}
823
824static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
825{
826 int err;
827
828 memset(k, 0, sizeof(*k));
829 k->idx = -1;
e31b8213 830 k->type = -1;
b9454e83
JB		 831
832 if (info->attrs[NL80211_ATTR_KEY])
833 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
834 else
835 err = nl80211_parse_key_old(info, k);
836
837 if (err)
838 return err;
839
840 if (k->def && k->defmgmt)
841 return -EINVAL;
842
dbd2fd65
JB		 843 if (k->defmgmt) {
844 if (k->def_uni || !k->def_multi)
845 return -EINVAL;
846 }
847
b9454e83
JB		 848 if (k->idx != -1) {
849 if (k->defmgmt) {
850 if (k->idx < 4 || k->idx > 5)
851 return -EINVAL;
852 } else if (k->def) {
853 if (k->idx < 0 || k->idx > 3)
854 return -EINVAL;
855 } else {
856 if (k->idx < 0 || k->idx > 5)
857 return -EINVAL;
858 }
859 }
860
861 return 0;
862}
863
fffd0934
JB		 864static struct cfg80211_cached_keys *
865nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 866 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 867{
868 struct key_parse parse;
869 struct nlattr *key;
870 struct cfg80211_cached_keys *result;
871 int rem, err, def = 0;
f1c1f17a
JB		 872 bool have_key = false;
873
874 nla_for_each_nested(key, keys, rem) {
875 have_key = true;
876 break;
877 }
878
879 if (!have_key)
880 return NULL;
fffd0934
JB		 881
882 result = kzalloc(sizeof(*result), GFP_KERNEL);
883 if (!result)
884 return ERR_PTR(-ENOMEM);
885
886 result->def = -1;
fffd0934
JB		 887
888 nla_for_each_nested(key, keys, rem) {
889 memset(&parse, 0, sizeof(parse));
890 parse.idx = -1;
891
892 err = nl80211_parse_key_new(key, &parse);
893 if (err)
894 goto error;
895 err = -EINVAL;
896 if (!parse.p.key)
897 goto error;
42ee231c 898 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 899 goto error;
900 if (parse.def) {
901 if (def)
902 goto error;
903 def = 1;
904 result->def = parse.idx;
dbd2fd65
JB		 905 if (!parse.def_uni || !parse.def_multi)
906 goto error;
fffd0934
JB		 907 } else if (parse.defmgmt)
908 goto error;
909 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 910 parse.idx, false, NULL);
fffd0934
JB		 911 if (err)
912 goto error;
386b1f27
JB		 913 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
914 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
915 err = -EINVAL;
916 goto error;
917 }
fffd0934
JB		 918 result->params[parse.idx].cipher = parse.p.cipher;
919 result->params[parse.idx].key_len = parse.p.key_len;
920 result->params[parse.idx].key = result->data[parse.idx];
921 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 922
386b1f27
JB		 923 /* must be WEP key if we got here */
924 if (no_ht)
925 *no_ht = true;
fffd0934
JB		 926 }
927
f1c1f17a
JB		 928 if (result->def < 0) {
929 err = -EINVAL;
930 goto error;
931 }
932
fffd0934
JB		 933 return result;
934 error:
935 kfree(result);
936 return ERR_PTR(err);
937}
938
939static int nl80211_key_allowed(struct wireless_dev *wdev)
940{
941 ASSERT_WDEV_LOCK(wdev);
942
fffd0934
JB		 943 switch (wdev->iftype) {
944 case NL80211_IFTYPE_AP:
945 case NL80211_IFTYPE_AP_VLAN:
074ac8df 946 case NL80211_IFTYPE_P2P_GO:
ff973af7 947 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 948 break;
949 case NL80211_IFTYPE_ADHOC:
fffd0934 950 case NL80211_IFTYPE_STATION:
074ac8df 951 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 952 if (!wdev->current_bss)
fffd0934
JB		 953 return -ENOLINK;
954 break;
de4fcbad 955 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 956 case NL80211_IFTYPE_OCB:
de4fcbad 957 case NL80211_IFTYPE_MONITOR:
cb3b7d87 958 case NL80211_IFTYPE_NAN:
de4fcbad
JB		 959 case NL80211_IFTYPE_P2P_DEVICE:
960 case NL80211_IFTYPE_WDS:
961 case NUM_NL80211_IFTYPES:
fffd0934
JB		 962 return -EINVAL;
963 }
964
965 return 0;
966}
967
664834de
JM		 968static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
969 struct nlattr *tb)
970{
971 struct ieee80211_channel *chan;
972
973 if (tb == NULL)
974 return NULL;
975 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
976 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
977 return NULL;
978 return chan;
979}
980
7527a782
JB		 981static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
982{
983 struct nlattr *nl_modes = nla_nest_start(msg, attr);
984 int i;
985
986 if (!nl_modes)
987 goto nla_put_failure;
988
989 i = 0;
990 while (ifmodes) {
9360ffd1
DM		 991 if ((ifmodes & 1) && nla_put_flag(msg, i))
992 goto nla_put_failure;
7527a782
JB		 993 ifmodes >>= 1;
994 i++;
995 }
996
997 nla_nest_end(msg, nl_modes);
998 return 0;
999
1000nla_put_failure:
1001 return -ENOBUFS;
1002}
1003
1004static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 1005 struct sk_buff *msg,
1006 bool large)
7527a782
JB		 1007{
1008 struct nlattr *nl_combis;
1009 int i, j;
1010
1011 nl_combis = nla_nest_start(msg,
1012 NL80211_ATTR_INTERFACE_COMBINATIONS);
1013 if (!nl_combis)
1014 goto nla_put_failure;
1015
1016 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1017 const struct ieee80211_iface_combination *c;
1018 struct nlattr *nl_combi, *nl_limits;
1019
1020 c = &wiphy->iface_combinations[i];
1021
1022 nl_combi = nla_nest_start(msg, i + 1);
1023 if (!nl_combi)
1024 goto nla_put_failure;
1025
1026 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1027 if (!nl_limits)
1028 goto nla_put_failure;
1029
1030 for (j = 0; j < c->n_limits; j++) {
1031 struct nlattr *nl_limit;
1032
1033 nl_limit = nla_nest_start(msg, j + 1);
1034 if (!nl_limit)
1035 goto nla_put_failure;
9360ffd1
DM		 1036 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1037 c->limits[j].max))
1038 goto nla_put_failure;
7527a782
JB		 1039 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1040 c->limits[j].types))
1041 goto nla_put_failure;
1042 nla_nest_end(msg, nl_limit);
1043 }
1044
1045 nla_nest_end(msg, nl_limits);
1046
9360ffd1
DM		 1047 if (c->beacon_int_infra_match &&
1048 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1049 goto nla_put_failure;
1050 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1051 c->num_different_channels) ||
1052 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1053 c->max_interfaces))
1054 goto nla_put_failure;
cdc89b97 1055 if (large &&
8c48b50a
FF		 1056 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1057 c->radar_detect_widths) ||
1058 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1059 c->radar_detect_regions)))
cdc89b97 1060 goto nla_put_failure;
0c317a02
PK		 1061 if (c->beacon_int_min_gcd &&
1062 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1063 c->beacon_int_min_gcd))
1064 goto nla_put_failure;
7527a782
JB		 1065
1066 nla_nest_end(msg, nl_combi);
1067 }
1068
1069 nla_nest_end(msg, nl_combis);
1070
1071 return 0;
1072nla_put_failure:
1073 return -ENOBUFS;
1074}
1075
3713b4e3 1076#ifdef CONFIG_PM
b56cf720
JB		 1077static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1078 struct sk_buff *msg)
1079{
964dc9e2 1080 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1081 struct nlattr *nl_tcp;
1082
1083 if (!tcp)
1084 return 0;
1085
1086 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1087 if (!nl_tcp)
1088 return -ENOBUFS;
1089
1090 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1091 tcp->data_payload_max))
1092 return -ENOBUFS;
1093
1094 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1095 tcp->data_payload_max))
1096 return -ENOBUFS;
1097
1098 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1099 return -ENOBUFS;
1100
1101 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1102 sizeof(*tcp->tok), tcp->tok))
1103 return -ENOBUFS;
1104
1105 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1106 tcp->data_interval_max))
1107 return -ENOBUFS;
1108
1109 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1110 tcp->wake_payload_max))
1111 return -ENOBUFS;
1112
1113 nla_nest_end(msg, nl_tcp);
1114 return 0;
1115}
1116
3713b4e3 1117static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1118 struct cfg80211_registered_device *rdev,
b56cf720 1119 bool large)
55682965 1120{
3713b4e3 1121 struct nlattr *nl_wowlan;
55682965 1122
1b8ec87a 1123 if (!rdev->wiphy.wowlan)
3713b4e3 1124 return 0;
55682965 1125
3713b4e3
JB		 1126 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1127 if (!nl_wowlan)
1128 return -ENOBUFS;
9360ffd1 1129
1b8ec87a 1130 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1131 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1132 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1133 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1134 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1135 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1136 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1137 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1138 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1139 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1140 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1141 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1142 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1143 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1144 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1145 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1146 return -ENOBUFS;
9360ffd1 1147
1b8ec87a 1148 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1149 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1150 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1151 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1152 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1153 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1154 };
9360ffd1 1155
3713b4e3
JB		 1156 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1157 sizeof(pat), &pat))
1158 return -ENOBUFS;
1159 }
9360ffd1 1160
75453ccb
LC		 1161 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1162 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1163 rdev->wiphy.wowlan->max_nd_match_sets))
1164 return -ENOBUFS;
1165
1b8ec87a 1166 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1167 return -ENOBUFS;
1168
3713b4e3 1169 nla_nest_end(msg, nl_wowlan);
9360ffd1 1170
3713b4e3
JB		 1171 return 0;
1172}
1173#endif
9360ffd1 1174
be29b99a 1175static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1176 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1177{
1178 struct nl80211_coalesce_rule_support rule;
1179
1b8ec87a 1180 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1181 return 0;
1182
1b8ec87a
ZG		 1183 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1184 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1185 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1186 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1187 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1188 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1189
1190 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1191 return -ENOBUFS;
1192
1193 return 0;
1194}
1195
3713b4e3
JB		 1196static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1197 struct ieee80211_supported_band *sband)
1198{
1199 struct nlattr *nl_rates, *nl_rate;
1200 struct ieee80211_rate *rate;
1201 int i;
87bbbe22 1202
3713b4e3
JB		 1203 /* add HT info */
1204 if (sband->ht_cap.ht_supported &&
1205 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1206 sizeof(sband->ht_cap.mcs),
1207 &sband->ht_cap.mcs) ||
1208 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1209 sband->ht_cap.cap) ||
1210 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1211 sband->ht_cap.ampdu_factor) ||
1212 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1213 sband->ht_cap.ampdu_density)))
1214 return -ENOBUFS;
afe0cbf8 1215
3713b4e3
JB		 1216 /* add VHT info */
1217 if (sband->vht_cap.vht_supported &&
1218 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1219 sizeof(sband->vht_cap.vht_mcs),
1220 &sband->vht_cap.vht_mcs) ||
1221 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1222 sband->vht_cap.cap)))
1223 return -ENOBUFS;
f59ac048 1224
3713b4e3
JB		 1225 /* add bitrates */
1226 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1227 if (!nl_rates)
1228 return -ENOBUFS;
ee688b00 1229
3713b4e3
JB		 1230 for (i = 0; i < sband->n_bitrates; i++) {
1231 nl_rate = nla_nest_start(msg, i);
1232 if (!nl_rate)
1233 return -ENOBUFS;
ee688b00 1234
3713b4e3
JB		 1235 rate = &sband->bitrates[i];
1236 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1237 rate->bitrate))
1238 return -ENOBUFS;
1239 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1240 nla_put_flag(msg,
1241 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1242 return -ENOBUFS;
ee688b00 1243
3713b4e3
JB		 1244 nla_nest_end(msg, nl_rate);
1245 }
d51626df 1246
3713b4e3 1247 nla_nest_end(msg, nl_rates);
bf0c111e 1248
3713b4e3
JB		 1249 return 0;
1250}
ee688b00 1251
3713b4e3
JB		 1252static int
1253nl80211_send_mgmt_stypes(struct sk_buff *msg,
1254 const struct ieee80211_txrx_stypes *mgmt_stypes)
1255{
1256 u16 stypes;
1257 struct nlattr *nl_ftypes, *nl_ifs;
1258 enum nl80211_iftype ift;
1259 int i;
ee688b00 1260
3713b4e3
JB		 1261 if (!mgmt_stypes)
1262 return 0;
5dab3b8a 1263
3713b4e3
JB		 1264 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1265 if (!nl_ifs)
1266 return -ENOBUFS;
e2f367f2 1267
3713b4e3
JB		 1268 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1269 nl_ftypes = nla_nest_start(msg, ift);
1270 if (!nl_ftypes)
1271 return -ENOBUFS;
1272 i = 0;
1273 stypes = mgmt_stypes[ift].tx;
1274 while (stypes) {
1275 if ((stypes & 1) &&
1276 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1277 (i << 4) | IEEE80211_FTYPE_MGMT))
1278 return -ENOBUFS;
1279 stypes >>= 1;
1280 i++;
ee688b00 1281 }
3713b4e3
JB		 1282 nla_nest_end(msg, nl_ftypes);
1283 }
ee688b00 1284
3713b4e3 1285 nla_nest_end(msg, nl_ifs);
ee688b00 1286
3713b4e3
JB		 1287 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1288 if (!nl_ifs)
1289 return -ENOBUFS;
ee688b00 1290
3713b4e3
JB		 1291 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1292 nl_ftypes = nla_nest_start(msg, ift);
1293 if (!nl_ftypes)
1294 return -ENOBUFS;
1295 i = 0;
1296 stypes = mgmt_stypes[ift].rx;
1297 while (stypes) {
1298 if ((stypes & 1) &&
1299 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1300 (i << 4) | IEEE80211_FTYPE_MGMT))
1301 return -ENOBUFS;
1302 stypes >>= 1;
1303 i++;
1304 }
1305 nla_nest_end(msg, nl_ftypes);
1306 }
1307 nla_nest_end(msg, nl_ifs);
ee688b00 1308
3713b4e3
JB		 1309 return 0;
1310}
ee688b00 1311
1794899e
JB		 1312#define CMD(op, n) \
1313 do { \
1314 if (rdev->ops->op) { \
1315 i++; \
1316 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1317 goto nla_put_failure; \
1318 } \
1319 } while (0)
1320
1321static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1322 struct sk_buff *msg)
1323{
1324 int i = 0;
1325
1326 /*
1327 * do *NOT* add anything into this function, new things need to be
1328 * advertised only to new versions of userspace that can deal with
1329 * the split (and they can't possibly care about new features...
1330 */
1331 CMD(add_virtual_intf, NEW_INTERFACE);
1332 CMD(change_virtual_intf, SET_INTERFACE);
1333 CMD(add_key, NEW_KEY);
1334 CMD(start_ap, START_AP);
1335 CMD(add_station, NEW_STATION);
1336 CMD(add_mpath, NEW_MPATH);
1337 CMD(update_mesh_config, SET_MESH_CONFIG);
1338 CMD(change_bss, SET_BSS);
1339 CMD(auth, AUTHENTICATE);
1340 CMD(assoc, ASSOCIATE);
1341 CMD(deauth, DEAUTHENTICATE);
1342 CMD(disassoc, DISASSOCIATE);
1343 CMD(join_ibss, JOIN_IBSS);
1344 CMD(join_mesh, JOIN_MESH);
1345 CMD(set_pmksa, SET_PMKSA);
1346 CMD(del_pmksa, DEL_PMKSA);
1347 CMD(flush_pmksa, FLUSH_PMKSA);
1348 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1349 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1350 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1351 CMD(mgmt_tx, FRAME);
1352 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1353 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1354 i++;
1355 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1356 goto nla_put_failure;
1357 }
1358 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1359 rdev->ops->join_mesh) {
1360 i++;
1361 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1362 goto nla_put_failure;
1363 }
1364 CMD(set_wds_peer, SET_WDS_PEER);
1365 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1366 CMD(tdls_mgmt, TDLS_MGMT);
1367 CMD(tdls_oper, TDLS_OPER);
1368 }
1369 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1370 CMD(sched_scan_start, START_SCHED_SCAN);
1371 CMD(probe_client, PROBE_CLIENT);
1372 CMD(set_noack_map, SET_NOACK_MAP);
1373 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1374 i++;
1375 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1376 goto nla_put_failure;
1377 }
1378 CMD(start_p2p_device, START_P2P_DEVICE);
1379 CMD(set_mcast_rate, SET_MCAST_RATE);
1380#ifdef CONFIG_NL80211_TESTMODE
1381 CMD(testmode_cmd, TESTMODE);
1382#endif
1383
1384 if (rdev->ops->connect || rdev->ops->auth) {
1385 i++;
1386 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1387 goto nla_put_failure;
1388 }
1389
1390 if (rdev->ops->disconnect || rdev->ops->deauth) {
1391 i++;
1392 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1393 goto nla_put_failure;
1394 }
1395
1396 return i;
1397 nla_put_failure:
1398 return -ENOBUFS;
1399}
1400
86e8cf98
JB		 1401struct nl80211_dump_wiphy_state {
1402 s64 filter_wiphy;
1403 long start;
019ae3a9 1404 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1405 bool split;
1406};
1407
1b8ec87a 1408static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1409 enum nl80211_commands cmd,
3713b4e3 1410 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1411 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1412{
1413 void *hdr;
1414 struct nlattr *nl_bands, *nl_band;
1415 struct nlattr *nl_freqs, *nl_freq;
1416 struct nlattr *nl_cmds;
57fbcce3 1417 enum nl80211_band band;
3713b4e3
JB		 1418 struct ieee80211_channel *chan;
1419 int i;
1420 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1421 rdev->wiphy.mgmt_stypes;
fe1abafd 1422 u32 features;
ee688b00 1423
3bb20556 1424 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1425 if (!hdr)
1426 return -ENOBUFS;
ee688b00 1427
86e8cf98
JB		 1428 if (WARN_ON(!state))
1429 return -EINVAL;
ee688b00 1430
1b8ec87a 1431 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1432 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1433 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1434 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1435 cfg80211_rdev_list_generation))
8fdc621d
JB		 1436 goto nla_put_failure;
1437
3bb20556
JB		 1438 if (cmd != NL80211_CMD_NEW_WIPHY)
1439 goto finish;
1440
86e8cf98 1441 switch (state->split_start) {
3713b4e3
JB		 1442 case 0:
1443 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1444 rdev->wiphy.retry_short) ||
3713b4e3 1445 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1446 rdev->wiphy.retry_long) ||
3713b4e3 1447 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1448 rdev->wiphy.frag_threshold) ||
3713b4e3 1449 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1450 rdev->wiphy.rts_threshold) ||
3713b4e3 1451 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1452 rdev->wiphy.coverage_class) ||
3713b4e3 1453 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1454 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1455 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1456 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1457 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1458 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1459 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1460 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1461 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1462 rdev->wiphy.max_match_sets) ||
1463 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1464 rdev->wiphy.max_sched_scan_plans) ||
1465 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1466 rdev->wiphy.max_sched_scan_plan_interval) ||
1467 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1468 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1469 goto nla_put_failure;
3713b4e3 1470
1b8ec87a 1471 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1472 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1473 goto nla_put_failure;
1b8ec87a 1474 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1475 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1476 goto nla_put_failure;
1b8ec87a 1477 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1478 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1479 goto nla_put_failure;
1b8ec87a 1480 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1481 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1482 goto nla_put_failure;
1b8ec87a 1483 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1484 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1485 goto nla_put_failure;
1b8ec87a 1486 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1487 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1488 goto nla_put_failure;
86e8cf98
JB		 1489 state->split_start++;
1490 if (state->split)
3713b4e3
JB		 1491 break;
1492 case 1:
1493 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1494 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1495 rdev->wiphy.cipher_suites))
3713b4e3 1496 goto nla_put_failure;
4745fc09 1497
3713b4e3 1498 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1499 rdev->wiphy.max_num_pmkids))
3713b4e3 1500 goto nla_put_failure;
b23aa676 1501
1b8ec87a 1502 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1503 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1504 goto nla_put_failure;
b23aa676 1505
3713b4e3 1506 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1507 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1508 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1509 rdev->wiphy.available_antennas_rx))
9360ffd1 1510 goto nla_put_failure;
b23aa676 1511
1b8ec87a 1512 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1513 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1514 rdev->wiphy.probe_resp_offload))
3713b4e3 1515 goto nla_put_failure;
8fdc621d 1516
1b8ec87a
ZG		 1517 if ((rdev->wiphy.available_antennas_tx ||
1518 rdev->wiphy.available_antennas_rx) &&
1519 rdev->ops->get_antenna) {
3713b4e3
JB		 1520 u32 tx_ant = 0, rx_ant = 0;
1521 int res;
7a087e74 1522
1b8ec87a 1523 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1524 if (!res) {
1525 if (nla_put_u32(msg,
1526 NL80211_ATTR_WIPHY_ANTENNA_TX,
1527 tx_ant) ||
1528 nla_put_u32(msg,
1529 NL80211_ATTR_WIPHY_ANTENNA_RX,
1530 rx_ant))
1531 goto nla_put_failure;
1532 }
1533 }
a293911d 1534
86e8cf98
JB		 1535 state->split_start++;
1536 if (state->split)
3713b4e3
JB		 1537 break;
1538 case 2:
1539 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1540 rdev->wiphy.interface_modes))
3713b4e3 1541 goto nla_put_failure;
86e8cf98
JB		 1542 state->split_start++;
1543 if (state->split)
3713b4e3
JB		 1544 break;
1545 case 3:
1546 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1547 if (!nl_bands)
1548 goto nla_put_failure;
f7ca38df 1549
86e8cf98 1550 for (band = state->band_start;
57fbcce3 1551 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1552 struct ieee80211_supported_band *sband;
2e161f78 1553
1b8ec87a 1554 sband = rdev->wiphy.bands[band];
2e161f78 1555
3713b4e3
JB		 1556 if (!sband)
1557 continue;
1558
1559 nl_band = nla_nest_start(msg, band);
1560 if (!nl_band)
2e161f78 1561 goto nla_put_failure;
3713b4e3 1562
86e8cf98 1563 switch (state->chan_start) {
3713b4e3
JB		 1564 case 0:
1565 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1566 goto nla_put_failure;
86e8cf98
JB		 1567 state->chan_start++;
1568 if (state->split)
3713b4e3
JB		 1569 break;
1570 default:
1571 /* add frequencies */
1572 nl_freqs = nla_nest_start(
1573 msg, NL80211_BAND_ATTR_FREQS);
1574 if (!nl_freqs)
1575 goto nla_put_failure;
1576
86e8cf98 1577 for (i = state->chan_start - 1;
3713b4e3
JB		 1578 i < sband->n_channels;
1579 i++) {
1580 nl_freq = nla_nest_start(msg, i);
1581 if (!nl_freq)
1582 goto nla_put_failure;
1583
1584 chan = &sband->channels[i];
1585
86e8cf98
JB		 1586 if (nl80211_msg_put_channel(
1587 msg, chan,
1588 state->split))
3713b4e3
JB		 1589 goto nla_put_failure;
1590
1591 nla_nest_end(msg, nl_freq);
86e8cf98 1592 if (state->split)
3713b4e3
JB		 1593 break;
1594 }
1595 if (i < sband->n_channels)
86e8cf98 1596 state->chan_start = i + 2;
3713b4e3 1597 else
86e8cf98 1598 state->chan_start = 0;
3713b4e3
JB		 1599 nla_nest_end(msg, nl_freqs);
1600 }
1601
1602 nla_nest_end(msg, nl_band);
1603
86e8cf98 1604 if (state->split) {
3713b4e3 1605 /* start again here */
86e8cf98 1606 if (state->chan_start)
3713b4e3
JB		 1607 band--;
1608 break;
2e161f78 1609 }
2e161f78 1610 }
3713b4e3 1611 nla_nest_end(msg, nl_bands);
2e161f78 1612
57fbcce3 1613 if (band < NUM_NL80211_BANDS)
86e8cf98 1614 state->band_start = band + 1;
3713b4e3 1615 else
86e8cf98 1616 state->band_start = 0;
74b70a4e 1617
3713b4e3 1618 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1619 if (state->band_start == 0 && state->chan_start == 0)
1620 state->split_start++;
1621 if (state->split)
3713b4e3
JB		 1622 break;
1623 case 4:
1624 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1625 if (!nl_cmds)
2e161f78
JB		 1626 goto nla_put_failure;
1627
1794899e
JB		 1628 i = nl80211_add_commands_unsplit(rdev, msg);
1629 if (i < 0)
1630 goto nla_put_failure;
86e8cf98 1631 if (state->split) {
5de17984
AS		 1632 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1633 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1634 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1635 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1636 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1637 if (rdev->wiphy.features &
1638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1639 CMD(add_tx_ts, ADD_TX_TS);
ce0ce13a 1640 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
088e8df8 1641 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
5de17984 1642 }
3713b4e3 1643#undef CMD
ff1b6e69 1644
3713b4e3 1645 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1646 state->split_start++;
1647 if (state->split)
3713b4e3
JB		 1648 break;
1649 case 5:
1b8ec87a
ZG		 1650 if (rdev->ops->remain_on_channel &&
1651 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1652 nla_put_u32(msg,
1653 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1654 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1655 goto nla_put_failure;
1656
1b8ec87a 1657 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1658 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1659 goto nla_put_failure;
1660
1661 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1662 goto nla_put_failure;
86e8cf98
JB		 1663 state->split_start++;
1664 if (state->split)
3713b4e3
JB		 1665 break;
1666 case 6:
1667#ifdef CONFIG_PM
1b8ec87a 1668 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1669 goto nla_put_failure;
86e8cf98
JB		 1670 state->split_start++;
1671 if (state->split)
3713b4e3
JB		 1672 break;
1673#else
86e8cf98 1674 state->split_start++;
dfb89c56 1675#endif
3713b4e3
JB		 1676 case 7:
1677 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1678 rdev->wiphy.software_iftypes))
3713b4e3 1679 goto nla_put_failure;
ff1b6e69 1680
1b8ec87a 1681 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1682 state->split))
3713b4e3 1683 goto nla_put_failure;
7527a782 1684
86e8cf98
JB		 1685 state->split_start++;
1686 if (state->split)
3713b4e3
JB		 1687 break;
1688 case 8:
1b8ec87a 1689 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1690 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1691 rdev->wiphy.ap_sme_capa))
3713b4e3 1692 goto nla_put_failure;
7527a782 1693
1b8ec87a 1694 features = rdev->wiphy.features;
fe1abafd
JB		 1695 /*
1696 * We can only add the per-channel limit information if the
1697 * dump is split, otherwise it makes it too big. Therefore
1698 * only advertise it in that case.
1699 */
86e8cf98 1700 if (state->split)
fe1abafd
JB		 1701 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1702 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1703 goto nla_put_failure;
562a7480 1704
1b8ec87a 1705 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1706 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1707 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1708 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1709 goto nla_put_failure;
1f074bd8 1710
1b8ec87a
ZG		 1711 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1712 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1713 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1714 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1715 goto nla_put_failure;
7e7c8926 1716
3713b4e3
JB		 1717 /*
1718 * Any information below this point is only available to
1719 * applications that can deal with it being split. This
1720 * helps ensure that newly added capabilities don't break
1721 * older tools by overrunning their buffers.
1722 *
1723 * We still increment split_start so that in the split
1724 * case we'll continue with more data in the next round,
1725 * but break unconditionally so unsplit data stops here.
1726 */
86e8cf98 1727 state->split_start++;
3713b4e3
JB		 1728 break;
1729 case 9:
1b8ec87a 1730 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1731 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1732 rdev->wiphy.extended_capabilities_len,
1733 rdev->wiphy.extended_capabilities) ||
fe1abafd 1734 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1735 rdev->wiphy.extended_capabilities_len,
1736 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1737 goto nla_put_failure;
a50df0c4 1738
1b8ec87a 1739 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1740 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1741 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1742 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1743 goto nla_put_failure;
1744
be29b99a
AK		 1745 state->split_start++;
1746 break;
1747 case 10:
1b8ec87a 1748 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1749 goto nla_put_failure;
1750
1b8ec87a 1751 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1752 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1753 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1754 goto nla_put_failure;
b43504cf 1755
1b8ec87a 1756 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1757 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1758 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1759 goto nla_put_failure;
1760
ad7e718c
JB		 1761 state->split_start++;
1762 break;
1763 case 11:
1b8ec87a 1764 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1765 const struct nl80211_vendor_cmd_info *info;
1766 struct nlattr *nested;
1767
1768 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1769 if (!nested)
1770 goto nla_put_failure;
1771
1b8ec87a
ZG		 1772 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1773 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1774 if (nla_put(msg, i + 1, sizeof(*info), info))
1775 goto nla_put_failure;
1776 }
1777 nla_nest_end(msg, nested);
1778 }
1779
1b8ec87a 1780 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1781 const struct nl80211_vendor_cmd_info *info;
1782 struct nlattr *nested;
ad7e718c 1783
567ffc35
JB		 1784 nested = nla_nest_start(msg,
1785 NL80211_ATTR_VENDOR_EVENTS);
1786 if (!nested)
ad7e718c 1787 goto nla_put_failure;
567ffc35 1788
1b8ec87a
ZG		 1789 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1790 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1791 if (nla_put(msg, i + 1, sizeof(*info), info))
1792 goto nla_put_failure;
1793 }
1794 nla_nest_end(msg, nested);
1795 }
9a774c78
AO		 1796 state->split_start++;
1797 break;
1798 case 12:
1799 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1800 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1801 rdev->wiphy.max_num_csa_counters))
1802 goto nla_put_failure;
01e0daa4 1803
1bdd716c
AN		 1804 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1805 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1806 goto nla_put_failure;
1807
d75bb06b
GKS		 1808 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1809 sizeof(rdev->wiphy.ext_features),
1810 rdev->wiphy.ext_features))
1811 goto nla_put_failure;
1812
38de03d2
AS		 1813 if (rdev->wiphy.bss_select_support) {
1814 struct nlattr *nested;
1815 u32 bss_select_support = rdev->wiphy.bss_select_support;
1816
1817 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1818 if (!nested)
1819 goto nla_put_failure;
1820
1821 i = 0;
1822 while (bss_select_support) {
1823 if ((bss_select_support & 1) &&
1824 nla_put_flag(msg, i))
1825 goto nla_put_failure;
1826 i++;
1827 bss_select_support >>= 1;
1828 }
1829 nla_nest_end(msg, nested);
1830 }
1831
019ae3a9
KV		 1832 state->split_start++;
1833 break;
1834 case 13:
1835 if (rdev->wiphy.num_iftype_ext_capab &&
1836 rdev->wiphy.iftype_ext_capab) {
1837 struct nlattr *nested_ext_capab, *nested;
1838
1839 nested = nla_nest_start(msg,
1840 NL80211_ATTR_IFTYPE_EXT_CAPA);
1841 if (!nested)
1842 goto nla_put_failure;
1843
1844 for (i = state->capa_start;
1845 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1846 const struct wiphy_iftype_ext_capab *capab;
1847
1848 capab = &rdev->wiphy.iftype_ext_capab[i];
1849
1850 nested_ext_capab = nla_nest_start(msg, i);
1851 if (!nested_ext_capab ||
1852 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1853 capab->iftype) ||
1854 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1855 capab->extended_capabilities_len,
1856 capab->extended_capabilities) ||
1857 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1858 capab->extended_capabilities_len,
1859 capab->extended_capabilities_mask))
1860 goto nla_put_failure;
1861
1862 nla_nest_end(msg, nested_ext_capab);
1863 if (state->split)
1864 break;
1865 }
1866 nla_nest_end(msg, nested);
1867 if (i < rdev->wiphy.num_iftype_ext_capab) {
1868 state->capa_start = i + 1;
1869 break;
1870 }
1871 }
1872
8585989d
LC		 1873 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1874 rdev->wiphy.nan_supported_bands))
1875 goto nla_put_failure;
1876
3713b4e3 1877 /* done */
86e8cf98 1878 state->split_start = 0;
3713b4e3
JB		 1879 break;
1880 }
3bb20556 1881 finish:
053c095a
JB		 1882 genlmsg_end(msg, hdr);
1883 return 0;
55682965
JB		 1884
1885 nla_put_failure:
bc3ed28c
TG		 1886 genlmsg_cancel(msg, hdr);
1887 return -EMSGSIZE;
55682965
JB		 1888}
1889
86e8cf98
JB		 1890static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1891 struct netlink_callback *cb,
1892 struct nl80211_dump_wiphy_state *state)
1893{
c90c39da 1894 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
fceb6435
JB		 1895 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
1896 nl80211_fam.maxattr, nl80211_policy, NULL);
86e8cf98
JB		 1897 /* ignore parse errors for backward compatibility */
1898 if (ret)
1899 return 0;
1900
1901 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1902 if (tb[NL80211_ATTR_WIPHY])
1903 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1904 if (tb[NL80211_ATTR_WDEV])
1905 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1906 if (tb[NL80211_ATTR_IFINDEX]) {
1907 struct net_device *netdev;
1908 struct cfg80211_registered_device *rdev;
1909 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1910
7f2b8562 1911 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1912 if (!netdev)
1913 return -ENODEV;
1914 if (netdev->ieee80211_ptr) {
f26cbf40 1915 rdev = wiphy_to_rdev(
86e8cf98
JB		 1916 netdev->ieee80211_ptr->wiphy);
1917 state->filter_wiphy = rdev->wiphy_idx;
1918 }
86e8cf98
JB		 1919 }
1920
1921 return 0;
1922}
1923
55682965
JB		 1924static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1925{
645e77de 1926 int idx = 0, ret;
86e8cf98 1927 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1928 struct cfg80211_registered_device *rdev;
3a5a423b 1929
5fe231e8 1930 rtnl_lock();
86e8cf98
JB		 1931 if (!state) {
1932 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1933 if (!state) {
1934 rtnl_unlock();
86e8cf98 1935 return -ENOMEM;
3713b4e3 1936 }
86e8cf98
JB		 1937 state->filter_wiphy = -1;
1938 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1939 if (ret) {
1940 kfree(state);
1941 rtnl_unlock();
1942 return ret;
3713b4e3 1943 }
86e8cf98 1944 cb->args[0] = (long)state;
3713b4e3
JB		 1945 }
1946
1b8ec87a
ZG		 1947 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1948 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1949 continue;
86e8cf98 1950 if (++idx <= state->start)
55682965 1951 continue;
86e8cf98 1952 if (state->filter_wiphy != -1 &&
1b8ec87a 1953 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1954 continue;
1955 /* attempt to fit multiple wiphy data chunks into the skb */
1956 do {
3bb20556
JB		 1957 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1958 skb,
3713b4e3
JB		 1959 NETLINK_CB(cb->skb).portid,
1960 cb->nlh->nlmsg_seq,
86e8cf98 1961 NLM_F_MULTI, state);
3713b4e3
JB		 1962 if (ret < 0) {
1963 /*
1964 * If sending the wiphy data didn't fit (ENOBUFS
1965 * or EMSGSIZE returned), this SKB is still
1966 * empty (so it's not too big because another
1967 * wiphy dataset is already in the skb) and
1968 * we've not tried to adjust the dump allocation
1969 * yet ... then adjust the alloc size to be
1970 * bigger, and return 1 but with the empty skb.
1971 * This results in an empty message being RX'ed
1972 * in userspace, but that is ignored.
1973 *
1974 * We can then retry with the larger buffer.
1975 */
1976 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1977 !skb->len && !state->split &&
3713b4e3
JB		 1978 cb->min_dump_alloc < 4096) {
1979 cb->min_dump_alloc = 4096;
f12cb289 1980 state->split_start = 0;
d98cae64 1981 rtnl_unlock();
3713b4e3
JB		 1982 return 1;
1983 }
1984 idx--;
1985 break;
645e77de 1986 }
86e8cf98 1987 } while (state->split_start > 0);
3713b4e3 1988 break;
55682965 1989 }
5fe231e8 1990 rtnl_unlock();
55682965 1991
86e8cf98 1992 state->start = idx;
55682965
JB		 1993
1994 return skb->len;
1995}
1996
86e8cf98
JB		 1997static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1998{
1999 kfree((void *)cb->args[0]);
2000 return 0;
2001}
2002
55682965
JB		 2003static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2004{
2005 struct sk_buff *msg;
1b8ec87a 2006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 2007 struct nl80211_dump_wiphy_state state = {};
55682965 2008
645e77de 2009 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 2010 if (!msg)
4c476991 2011 return -ENOMEM;
55682965 2012
3bb20556
JB		 2013 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2014 info->snd_portid, info->snd_seq, 0,
86e8cf98 2015 &state) < 0) {
4c476991
JB		 2016 nlmsg_free(msg);
2017 return -ENOBUFS;
2018 }
55682965 2019
134e6375 2020 return genlmsg_reply(msg, info);
55682965
JB		 2021}
2022
31888487
JM		 2023static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2024 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2025 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2026 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2027 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2028 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2029};
2030
2031static int parse_txq_params(struct nlattr *tb[],
2032 struct ieee80211_txq_params *txq_params)
2033{
a3304b0a 2034 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 2035 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2036 !tb[NL80211_TXQ_ATTR_AIFS])
2037 return -EINVAL;
2038
a3304b0a 2039 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 2040 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2041 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2042 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2043 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2044
a3304b0a
JB		 2045 if (txq_params->ac >= NL80211_NUM_ACS)
2046 return -EINVAL;
2047
31888487
JM		 2048 return 0;
2049}
2050
f444de05
JB		 2051static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2052{
2053 /*
cc1d2806
JB		 2054 * You can only set the channel explicitly for WDS interfaces,
2055 * all others have their channel managed via their respective
2056 * "establish a connection" command (connect, join, ...)
2057 *
2058 * For AP/GO and mesh mode, the channel can be set with the
2059 * channel userspace API, but is only stored and passed to the
2060 * low-level driver when the AP starts or the mesh is joined.
2061 * This is for backward compatibility, userspace can also give
2062 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2063 *
2064 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2065 * whatever else is going on, so they have their own special
2066 * operation to set the monitor channel if possible.
f444de05
JB		 2067 */
2068 return !wdev ||
2069 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2070 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2071 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2072 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2073}
2074
683b6d3b
JB		 2075static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2076 struct genl_info *info,
2077 struct cfg80211_chan_def *chandef)
2078{
dbeca2ea 2079 u32 control_freq;
683b6d3b
JB		 2080
2081 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2082 return -EINVAL;
2083
2084 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2085
2086 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2087 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2088 chandef->center_freq1 = control_freq;
2089 chandef->center_freq2 = 0;
683b6d3b
JB		 2090
2091 /* Primary channel not allowed */
2092 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2093 return -EINVAL;
2094
3d9d1d66
JB		 2095 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2096 enum nl80211_channel_type chantype;
2097
2098 chantype = nla_get_u32(
2099 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2100
2101 switch (chantype) {
2102 case NL80211_CHAN_NO_HT:
2103 case NL80211_CHAN_HT20:
2104 case NL80211_CHAN_HT40PLUS:
2105 case NL80211_CHAN_HT40MINUS:
2106 cfg80211_chandef_create(chandef, chandef->chan,
2107 chantype);
2108 break;
2109 default:
2110 return -EINVAL;
2111 }
2112 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2113 chandef->width =
2114 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2115 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2116 chandef->center_freq1 =
2117 nla_get_u32(
2118 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2119 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2120 chandef->center_freq2 =
2121 nla_get_u32(
2122 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2123 }
2124
9f5e8f6e 2125 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2126 return -EINVAL;
2127
9f5e8f6e
JB		 2128 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2129 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2130 return -EINVAL;
2131
2f301ab2
SW		 2132 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2133 chandef->width == NL80211_CHAN_WIDTH_10) &&
2134 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2135 return -EINVAL;
2136
683b6d3b
JB		 2137 return 0;
2138}
2139
f444de05 2140static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2141 struct net_device *dev,
f444de05
JB		 2142 struct genl_info *info)
2143{
683b6d3b 2144 struct cfg80211_chan_def chandef;
f444de05 2145 int result;
e8c9bd5b 2146 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2147 struct wireless_dev *wdev = NULL;
e8c9bd5b 2148
e16821bc
JM		 2149 if (dev)
2150 wdev = dev->ieee80211_ptr;
f444de05
JB		 2151 if (!nl80211_can_set_dev_channel(wdev))
2152 return -EOPNOTSUPP;
e16821bc
JM		 2153 if (wdev)
2154 iftype = wdev->iftype;
f444de05 2155
683b6d3b
JB		 2156 result = nl80211_parse_chandef(rdev, info, &chandef);
2157 if (result)
2158 return result;
f444de05 2159
e8c9bd5b 2160 switch (iftype) {
aa430da4
JB		 2161 case NL80211_IFTYPE_AP:
2162 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2163 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2164 iftype)) {
aa430da4
JB		 2165 result = -EINVAL;
2166 break;
2167 }
e16821bc
JM		 2168 if (wdev->beacon_interval) {
2169 if (!dev || !rdev->ops->set_ap_chanwidth ||
2170 !(rdev->wiphy.features &
2171 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2172 result = -EBUSY;
2173 break;
2174 }
2175
2176 /* Only allow dynamic channel width changes */
2177 if (chandef.chan != wdev->preset_chandef.chan) {
2178 result = -EBUSY;
2179 break;
2180 }
2181 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2182 if (result)
2183 break;
2184 }
683b6d3b 2185 wdev->preset_chandef = chandef;
aa430da4
JB		 2186 result = 0;
2187 break;
cc1d2806 2188 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2189 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2190 break;
e8c9bd5b 2191 case NL80211_IFTYPE_MONITOR:
683b6d3b 2192 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2193 break;
aa430da4 2194 default:
e8c9bd5b 2195 result = -EINVAL;
f444de05 2196 }
f444de05
JB		 2197
2198 return result;
2199}
2200
2201static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2202{
4c476991
JB		 2203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2204 struct net_device *netdev = info->user_ptr[1];
f444de05 2205
e16821bc 2206 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2207}
2208
e8347eba
BJ		 2209static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2210{
43b19952
JB		 2211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2212 struct net_device *dev = info->user_ptr[1];
2213 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2214 const u8 *bssid;
e8347eba
BJ		 2215
2216 if (!info->attrs[NL80211_ATTR_MAC])
2217 return -EINVAL;
2218
43b19952
JB		 2219 if (netif_running(dev))
2220 return -EBUSY;
e8347eba 2221
43b19952
JB		 2222 if (!rdev->ops->set_wds_peer)
2223 return -EOPNOTSUPP;
e8347eba 2224
43b19952
JB		 2225 if (wdev->iftype != NL80211_IFTYPE_WDS)
2226 return -EOPNOTSUPP;
e8347eba
BJ		 2227
2228 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2229 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2230}
2231
55682965
JB		 2232static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2233{
2234 struct cfg80211_registered_device *rdev;
f444de05
JB		 2235 struct net_device *netdev = NULL;
2236 struct wireless_dev *wdev;
a1e567c8 2237 int result = 0, rem_txq_params = 0;
31888487 2238 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2239 u32 changed;
2240 u8 retry_short = 0, retry_long = 0;
2241 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2242 u8 coverage_class = 0;
55682965 2243
5fe231e8
JB		 2244 ASSERT_RTNL();
2245
f444de05
JB		 2246 /*
2247 * Try to find the wiphy and netdev. Normally this
2248 * function shouldn't need the netdev, but this is
2249 * done for backward compatibility -- previously
2250 * setting the channel was done per wiphy, but now
2251 * it is per netdev. Previous userland like hostapd
2252 * also passed a netdev to set_wiphy, so that it is
2253 * possible to let that go to the right netdev!
2254 */
4bbf4d56 2255
f444de05
JB		 2256 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2257 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2258
7f2b8562 2259 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2260 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2261 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2262 else
f444de05 2263 netdev = NULL;
4bbf4d56
JB		 2264 }
2265
f444de05 2266 if (!netdev) {
878d9ec7
JB		 2267 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2268 info->attrs);
5fe231e8 2269 if (IS_ERR(rdev))
4c476991 2270 return PTR_ERR(rdev);
f444de05
JB		 2271 wdev = NULL;
2272 netdev = NULL;
2273 result = 0;
71fe96bf 2274 } else
f444de05 2275 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2276
2277 /*
2278 * end workaround code, by now the rdev is available
2279 * and locked, and wdev may or may not be NULL.
2280 */
4bbf4d56
JB		 2281
2282 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2283 result = cfg80211_dev_rename(
2284 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2285
4bbf4d56 2286 if (result)
7f2b8562 2287 return result;
31888487
JM		 2288
2289 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2290 struct ieee80211_txq_params txq_params;
2291 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2292
7f2b8562
YX		 2293 if (!rdev->ops->set_txq_params)
2294 return -EOPNOTSUPP;
31888487 2295
7f2b8562
YX		 2296 if (!netdev)
2297 return -EINVAL;
f70f01c2 2298
133a3ff2 2299 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2300 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2301 return -EINVAL;
133a3ff2 2302
7f2b8562
YX		 2303 if (!netif_running(netdev))
2304 return -ENETDOWN;
2b5f8b0b 2305
31888487
JM		 2306 nla_for_each_nested(nl_txq_params,
2307 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2308 rem_txq_params) {
bfe2c7b1
JB		 2309 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2310 nl_txq_params,
fceb6435 2311 txq_params_policy, NULL);
ae811e21
JB		 2312 if (result)
2313 return result;
31888487
JM		 2314 result = parse_txq_params(tb, &txq_params);
2315 if (result)
7f2b8562 2316 return result;
31888487 2317
e35e4d28
HG		 2318 result = rdev_set_txq_params(rdev, netdev,
2319 &txq_params);
31888487 2320 if (result)
7f2b8562 2321 return result;
31888487
JM		 2322 }
2323 }
55682965 2324
72bdcf34 2325 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2326 result = __nl80211_set_channel(
2327 rdev,
2328 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2329 info);
72bdcf34 2330 if (result)
7f2b8562 2331 return result;
72bdcf34
JM		 2332 }
2333
98d2ff8b 2334 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2335 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2336 enum nl80211_tx_power_setting type;
2337 int idx, mbm = 0;
2338
c8442118
JB		 2339 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2340 txp_wdev = NULL;
2341
7f2b8562
YX		 2342 if (!rdev->ops->set_tx_power)
2343 return -EOPNOTSUPP;
98d2ff8b
JO		 2344
2345 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2346 type = nla_get_u32(info->attrs[idx]);
2347
2348 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2349 (type != NL80211_TX_POWER_AUTOMATIC))
2350 return -EINVAL;
98d2ff8b
JO		 2351
2352 if (type != NL80211_TX_POWER_AUTOMATIC) {
2353 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2354 mbm = nla_get_u32(info->attrs[idx]);
2355 }
2356
c8442118 2357 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2358 if (result)
7f2b8562 2359 return result;
98d2ff8b
JO		 2360 }
2361
afe0cbf8
BR		 2362 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2363 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2364 u32 tx_ant, rx_ant;
7a087e74 2365
7f531e03
BR		 2366 if ((!rdev->wiphy.available_antennas_tx &&
2367 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2368 !rdev->ops->set_antenna)
2369 return -EOPNOTSUPP;
afe0cbf8
BR		 2370
2371 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2372 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2373
a7ffac95 2374 /* reject antenna configurations which don't match the
7f531e03
BR		 2375 * available antenna masks, except for the "all" mask */
2376 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2377 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2378 return -EINVAL;
a7ffac95 2379
7f531e03
BR		 2380 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2381 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2382
e35e4d28 2383 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2384 if (result)
7f2b8562 2385 return result;
afe0cbf8
BR		 2386 }
2387
b9a5f8ca
JM		 2388 changed = 0;
2389
2390 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2391 retry_short = nla_get_u8(
2392 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2393 if (retry_short == 0)
2394 return -EINVAL;
2395
b9a5f8ca
JM		 2396 changed |= WIPHY_PARAM_RETRY_SHORT;
2397 }
2398
2399 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2400 retry_long = nla_get_u8(
2401 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2402 if (retry_long == 0)
2403 return -EINVAL;
2404
b9a5f8ca
JM		 2405 changed |= WIPHY_PARAM_RETRY_LONG;
2406 }
2407
2408 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2409 frag_threshold = nla_get_u32(
2410 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2411 if (frag_threshold < 256)
2412 return -EINVAL;
2413
b9a5f8ca
JM		 2414 if (frag_threshold != (u32) -1) {
2415 /*
2416 * Fragments (apart from the last one) are required to
2417 * have even length. Make the fragmentation code
2418 * simpler by stripping LSB should someone try to use
2419 * odd threshold value.
2420 */
2421 frag_threshold &= ~0x1;
2422 }
2423 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2424 }
2425
2426 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2427 rts_threshold = nla_get_u32(
2428 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2429 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2430 }
2431
81077e82 2432 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2433 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2434 return -EINVAL;
2435
81077e82
LT		 2436 coverage_class = nla_get_u8(
2437 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2438 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2439 }
2440
3057dbfd
LB		 2441 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2442 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2443 return -EOPNOTSUPP;
2444
2445 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2446 }
2447
b9a5f8ca
JM		 2448 if (changed) {
2449 u8 old_retry_short, old_retry_long;
2450 u32 old_frag_threshold, old_rts_threshold;
81077e82 2451 u8 old_coverage_class;
b9a5f8ca 2452
7f2b8562
YX		 2453 if (!rdev->ops->set_wiphy_params)
2454 return -EOPNOTSUPP;
b9a5f8ca
JM		 2455
2456 old_retry_short = rdev->wiphy.retry_short;
2457 old_retry_long = rdev->wiphy.retry_long;
2458 old_frag_threshold = rdev->wiphy.frag_threshold;
2459 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2460 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2461
2462 if (changed & WIPHY_PARAM_RETRY_SHORT)
2463 rdev->wiphy.retry_short = retry_short;
2464 if (changed & WIPHY_PARAM_RETRY_LONG)
2465 rdev->wiphy.retry_long = retry_long;
2466 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2467 rdev->wiphy.frag_threshold = frag_threshold;
2468 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2469 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2470 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2471 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2472
e35e4d28 2473 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2474 if (result) {
2475 rdev->wiphy.retry_short = old_retry_short;
2476 rdev->wiphy.retry_long = old_retry_long;
2477 rdev->wiphy.frag_threshold = old_frag_threshold;
2478 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2479 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2480 return result;
b9a5f8ca
JM		 2481 }
2482 }
7f2b8562 2483 return 0;
55682965
JB		 2484}
2485
71bbc994
JB		 2486static inline u64 wdev_id(struct wireless_dev *wdev)
2487{
2488 return (u64)wdev->identifier |
f26cbf40 2489 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2490}
55682965 2491
683b6d3b 2492static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2493 const struct cfg80211_chan_def *chandef)
683b6d3b 2494{
601555cd
JB		 2495 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2496 return -EINVAL;
3d9d1d66 2497
683b6d3b
JB		 2498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2499 chandef->chan->center_freq))
2500 return -ENOBUFS;
3d9d1d66
JB		 2501 switch (chandef->width) {
2502 case NL80211_CHAN_WIDTH_20_NOHT:
2503 case NL80211_CHAN_WIDTH_20:
2504 case NL80211_CHAN_WIDTH_40:
2505 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2506 cfg80211_get_chandef_type(chandef)))
2507 return -ENOBUFS;
2508 break;
2509 default:
2510 break;
2511 }
2512 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2513 return -ENOBUFS;
2514 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2515 return -ENOBUFS;
2516 if (chandef->center_freq2 &&
2517 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2518 return -ENOBUFS;
2519 return 0;
2520}
2521
15e47304 2522static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2523 struct cfg80211_registered_device *rdev,
8f894be2 2524 struct wireless_dev *wdev, bool removal)
55682965 2525{
72fb2abc 2526 struct net_device *dev = wdev->netdev;
8f894be2 2527 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2528 void *hdr;
2529
8f894be2
TB		 2530 if (removal)
2531 cmd = NL80211_CMD_DEL_INTERFACE;
2532
2533 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2534 if (!hdr)
2535 return -1;
2536
72fb2abc
JB		 2537 if (dev &&
2538 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2539 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2540 goto nla_put_failure;
2541
2542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2543 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2544 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2545 NL80211_ATTR_PAD) ||
98104fde 2546 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2547 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2548 rdev->devlist_generation ^
2549 (cfg80211_rdev_list_generation << 2)))
2550 goto nla_put_failure;
f5ea9120 2551
5b7ccaf3 2552 if (rdev->ops->get_channel) {
683b6d3b
JB		 2553 int ret;
2554 struct cfg80211_chan_def chandef;
2555
2556 ret = rdev_get_channel(rdev, wdev, &chandef);
2557 if (ret == 0) {
2558 if (nl80211_send_chandef(msg, &chandef))
2559 goto nla_put_failure;
2560 }
d91df0e3
PF		 2561 }
2562
d55d0d59
RM		 2563 if (rdev->ops->get_tx_power) {
2564 int dbm, ret;
2565
2566 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2567 if (ret == 0 &&
2568 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2569 DBM_TO_MBM(dbm)))
2570 goto nla_put_failure;
2571 }
2572
b84e7a05
AQ		 2573 if (wdev->ssid_len) {
2574 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2575 goto nla_put_failure;
2576 }
2577
053c095a
JB		 2578 genlmsg_end(msg, hdr);
2579 return 0;
55682965
JB		 2580
2581 nla_put_failure:
bc3ed28c
TG		 2582 genlmsg_cancel(msg, hdr);
2583 return -EMSGSIZE;
55682965
JB		 2584}
2585
2586static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2587{
2588 int wp_idx = 0;
2589 int if_idx = 0;
2590 int wp_start = cb->args[0];
2591 int if_start = cb->args[1];
b7fb44da 2592 int filter_wiphy = -1;
f5ea9120 2593 struct cfg80211_registered_device *rdev;
55682965 2594 struct wireless_dev *wdev;
ea90e0dc 2595 int ret;
55682965 2596
5fe231e8 2597 rtnl_lock();
b7fb44da
DK		 2598 if (!cb->args[2]) {
2599 struct nl80211_dump_wiphy_state state = {
2600 .filter_wiphy = -1,
2601 };
b7fb44da
DK		 2602
2603 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2604 if (ret)
ea90e0dc 2605 goto out_unlock;
b7fb44da
DK		 2606
2607 filter_wiphy = state.filter_wiphy;
2608
2609 /*
2610 * if filtering, set cb->args[2] to +1 since 0 is the default
2611 * value needed to determine that parsing is necessary.
2612 */
2613 if (filter_wiphy >= 0)
2614 cb->args[2] = filter_wiphy + 1;
2615 else
2616 cb->args[2] = -1;
2617 } else if (cb->args[2] > 0) {
2618 filter_wiphy = cb->args[2] - 1;
2619 }
2620
f5ea9120
JB		 2621 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2622 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2623 continue;
bba95fef
JB		 2624 if (wp_idx < wp_start) {
2625 wp_idx++;
55682965 2626 continue;
bba95fef 2627 }
b7fb44da
DK		 2628
2629 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2630 continue;
2631
55682965
JB		 2632 if_idx = 0;
2633
53873f13 2634 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2635 if (if_idx < if_start) {
2636 if_idx++;
55682965 2637 continue;
bba95fef 2638 }
15e47304 2639 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2640 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2641 rdev, wdev, false) < 0) {
bba95fef
JB		 2642 goto out;
2643 }
2644 if_idx++;
55682965 2645 }
bba95fef
JB		 2646
2647 wp_idx++;
55682965 2648 }
bba95fef 2649 out:
55682965
JB		 2650 cb->args[0] = wp_idx;
2651 cb->args[1] = if_idx;
2652
ea90e0dc
JB		 2653 ret = skb->len;
2654 out_unlock:
2655 rtnl_unlock();
2656
2657 return ret;
55682965
JB		 2658}
2659
2660static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2661{
2662 struct sk_buff *msg;
1b8ec87a 2663 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2664 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2665
fd2120ca 2666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2667 if (!msg)
4c476991 2668 return -ENOMEM;
55682965 2669
15e47304 2670 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2671 rdev, wdev, false) < 0) {
4c476991
JB		 2672 nlmsg_free(msg);
2673 return -ENOBUFS;
2674 }
55682965 2675
134e6375 2676 return genlmsg_reply(msg, info);
55682965
JB		 2677}
2678
66f7ac50
MW		 2679static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2680 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2681 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2682 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2683 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2684 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2685 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2686};
2687
2688static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2689{
2690 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2691 int flag;
2692
2693 *mntrflags = 0;
2694
2695 if (!nla)
2696 return -EINVAL;
2697
fceb6435
JB		 2698 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
2699 mntr_flags_policy, NULL))
66f7ac50
MW		 2700 return -EINVAL;
2701
2702 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2703 if (flags[flag])
2704 *mntrflags |= (1<<flag);
2705
2706 return 0;
2707}
2708
9bc383de 2709static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2710 struct net_device *netdev, u8 use_4addr,
2711 enum nl80211_iftype iftype)
9bc383de 2712{
ad4bb6f8 2713 if (!use_4addr) {
f350a0a8 2714 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2715 return -EBUSY;
9bc383de 2716 return 0;
ad4bb6f8 2717 }
9bc383de
JB		 2718
2719 switch (iftype) {
2720 case NL80211_IFTYPE_AP_VLAN:
2721 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2722 return 0;
2723 break;
2724 case NL80211_IFTYPE_STATION:
2725 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2726 return 0;
2727 break;
2728 default:
2729 break;
2730 }
2731
2732 return -EOPNOTSUPP;
2733}
2734
55682965
JB		 2735static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2736{
4c476991 2737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2738 struct vif_params params;
e36d56b6 2739 int err;
04a773ad 2740 enum nl80211_iftype otype, ntype;
4c476991 2741 struct net_device *dev = info->user_ptr[1];
92ffe055 2742 u32 _flags, *flags = NULL;
ac7f9cfa 2743 bool change = false;
55682965 2744
2ec600d6
LCC		 2745 memset(&params, 0, sizeof(params));
2746
04a773ad 2747 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2748
723b038d 2749 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2750 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2751 if (otype != ntype)
ac7f9cfa 2752 change = true;
4c476991
JB		 2753 if (ntype > NL80211_IFTYPE_MAX)
2754 return -EINVAL;
723b038d
JB		 2755 }
2756
92ffe055 2757 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2758 struct wireless_dev *wdev = dev->ieee80211_ptr;
2759
4c476991
JB		 2760 if (ntype != NL80211_IFTYPE_MESH_POINT)
2761 return -EINVAL;
29cbe68c
JB		 2762 if (netif_running(dev))
2763 return -EBUSY;
2764
2765 wdev_lock(wdev);
2766 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2767 IEEE80211_MAX_MESH_ID_LEN);
2768 wdev->mesh_id_up_len =
2769 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2770 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2771 wdev->mesh_id_up_len);
2772 wdev_unlock(wdev);
2ec600d6
LCC		 2773 }
2774
8b787643
FF		 2775 if (info->attrs[NL80211_ATTR_4ADDR]) {
2776 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2777 change = true;
ad4bb6f8 2778 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2779 if (err)
4c476991 2780 return err;
8b787643
FF		 2781 } else {
2782 params.use_4addr = -1;
2783 }
2784
92ffe055 2785 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2786 if (ntype != NL80211_IFTYPE_MONITOR)
2787 return -EINVAL;
92ffe055
JB		 2788 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2789 &_flags);
ac7f9cfa 2790 if (err)
4c476991 2791 return err;
ac7f9cfa
JB		 2792
2793 flags = &_flags;
2794 change = true;
92ffe055 2795 }
3b85875a 2796
c6e6a0c8
AE		 2797 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2798 const u8 *mumimo_groups;
2799 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2800
2801 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2802 return -EOPNOTSUPP;
2803
2804 mumimo_groups =
2805 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2806
2807 /* bits 0 and 63 are reserved and must be zero */
2808 if ((mumimo_groups[0] & BIT(7)) ||
2809 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2810 return -EINVAL;
2811
2812 memcpy(params.vht_mumimo_groups, mumimo_groups,
2813 VHT_MUMIMO_GROUPS_DATA_LEN);
2814 change = true;
2815 }
2816
2817 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2818 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2819
2820 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2821 return -EOPNOTSUPP;
2822
2823 nla_memcpy(params.macaddr,
2824 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2825 ETH_ALEN);
2826 change = true;
2827 }
2828
18003297 2829 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2830 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2831 return -EOPNOTSUPP;
2832
ac7f9cfa 2833 if (change)
3d54d255 2834 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2835 else
2836 err = 0;
60719ffd 2837
9bc383de
JB		 2838 if (!err && params.use_4addr != -1)
2839 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2840
55682965
JB		 2841 return err;
2842}
2843
2844static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2845{
4c476991 2846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2847 struct vif_params params;
84efbb84 2848 struct wireless_dev *wdev;
896ff063 2849 struct sk_buff *msg;
55682965
JB		 2850 int err;
2851 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2852 u32 flags;
55682965 2853
78f22b6a
JB		 2854 /* to avoid failing a new interface creation due to pending removal */
2855 cfg80211_destroy_ifaces(rdev);
2856
2ec600d6
LCC		 2857 memset(&params, 0, sizeof(params));
2858
55682965
JB		 2859 if (!info->attrs[NL80211_ATTR_IFNAME])
2860 return -EINVAL;
2861
2862 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2863 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2864 if (type > NL80211_IFTYPE_MAX)
2865 return -EINVAL;
2866 }
2867
79c97e97 2868 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2869 !(rdev->wiphy.interface_modes & (1 << type)))
2870 return -EOPNOTSUPP;
55682965 2871
cb3b7d87 2872 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2873 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2874 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2875 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2876 ETH_ALEN);
2877 if (!is_valid_ether_addr(params.macaddr))
2878 return -EADDRNOTAVAIL;
2879 }
2880
9bc383de 2881 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2882 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2883 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2884 if (err)
4c476991 2885 return err;
9bc383de 2886 }
8b787643 2887
66f7ac50
MW		 2888 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2889 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2890 &flags);
e057d3c3 2891
18003297 2892 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2893 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2894 return -EOPNOTSUPP;
2895
a18c7192
JB		 2896 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2897 if (!msg)
2898 return -ENOMEM;
2899
e35e4d28
HG		 2900 wdev = rdev_add_virtual_intf(rdev,
2901 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2902 NET_NAME_USER, type, err ? NULL : &flags,
2903 &params);
d687cbb7
RM		 2904 if (WARN_ON(!wdev)) {
2905 nlmsg_free(msg);
2906 return -EPROTO;
2907 } else if (IS_ERR(wdev)) {
1c90f9d4 2908 nlmsg_free(msg);
84efbb84 2909 return PTR_ERR(wdev);
1c90f9d4 2910 }
2ec600d6 2911
18e5ca65 2912 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2913 wdev->owner_nlportid = info->snd_portid;
2914
98104fde
JB		 2915 switch (type) {
2916 case NL80211_IFTYPE_MESH_POINT:
2917 if (!info->attrs[NL80211_ATTR_MESH_ID])
2918 break;
29cbe68c
JB		 2919 wdev_lock(wdev);
2920 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2921 IEEE80211_MAX_MESH_ID_LEN);
2922 wdev->mesh_id_up_len =
2923 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2924 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2925 wdev->mesh_id_up_len);
2926 wdev_unlock(wdev);
98104fde 2927 break;
cb3b7d87 2928 case NL80211_IFTYPE_NAN:
98104fde
JB		 2929 case NL80211_IFTYPE_P2P_DEVICE:
2930 /*
cb3b7d87 2931 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 2932 * through the netdev notifier and must be added here
2933 */
2934 mutex_init(&wdev->mtx);
2935 INIT_LIST_HEAD(&wdev->event_list);
2936 spin_lock_init(&wdev->event_lock);
2937 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2938 spin_lock_init(&wdev->mgmt_registrations_lock);
2939
98104fde 2940 wdev->identifier = ++rdev->wdev_id;
53873f13 2941 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2942 rdev->devlist_generation++;
98104fde
JB		 2943 break;
2944 default:
2945 break;
29cbe68c
JB		 2946 }
2947
15e47304 2948 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2949 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2950 nlmsg_free(msg);
2951 return -ENOBUFS;
2952 }
2953
896ff063
DK		 2954 /*
2955 * For wdevs which have no associated netdev object (e.g. of type
2956 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2957 * For all other types, the event will be generated from the
2958 * netdev notifier
2959 */
2960 if (!wdev->netdev)
2961 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2962
1c90f9d4 2963 return genlmsg_reply(msg, info);
55682965
JB		 2964}
2965
2966static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2967{
4c476991 2968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2969 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2970
4c476991
JB		 2971 if (!rdev->ops->del_virtual_intf)
2972 return -EOPNOTSUPP;
55682965 2973
84efbb84
JB		 2974 /*
2975 * If we remove a wireless device without a netdev then clear
2976 * user_ptr[1] so that nl80211_post_doit won't dereference it
2977 * to check if it needs to do dev_put(). Otherwise it crashes
2978 * since the wdev has been freed, unlike with a netdev where
2979 * we need the dev_put() for the netdev to really be freed.
2980 */
2981 if (!wdev->netdev)
2982 info->user_ptr[1] = NULL;
2983
7f8ed01e 2984 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2985}
2986
1d9d9213
SW		 2987static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2988{
2989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2990 struct net_device *dev = info->user_ptr[1];
2991 u16 noack_map;
2992
2993 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2994 return -EINVAL;
2995
2996 if (!rdev->ops->set_noack_map)
2997 return -EOPNOTSUPP;
2998
2999 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3000
e35e4d28 3001 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 3002}
3003
41ade00f
JB		 3004struct get_key_cookie {
3005 struct sk_buff *msg;
3006 int error;
b9454e83 3007 int idx;
41ade00f
JB		 3008};
3009
3010static void get_key_callback(void *c, struct key_params *params)
3011{
b9454e83 3012 struct nlattr *key;
41ade00f
JB		 3013 struct get_key_cookie *cookie = c;
3014
9360ffd1
DM		 3015 if ((params->key &&
3016 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3017 params->key_len, params->key)) ||
3018 (params->seq &&
3019 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3020 params->seq_len, params->seq)) ||
3021 (params->cipher &&
3022 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3023 params->cipher)))
3024 goto nla_put_failure;
41ade00f 3025
b9454e83
JB		 3026 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3027 if (!key)
3028 goto nla_put_failure;
3029
9360ffd1
DM		 3030 if ((params->key &&
3031 nla_put(cookie->msg, NL80211_KEY_DATA,
3032 params->key_len, params->key)) ||
3033 (params->seq &&
3034 nla_put(cookie->msg, NL80211_KEY_SEQ,
3035 params->seq_len, params->seq)) ||
3036 (params->cipher &&
3037 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3038 params->cipher)))
3039 goto nla_put_failure;
b9454e83 3040
9360ffd1
DM		 3041 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3042 goto nla_put_failure;
b9454e83
JB		 3043
3044 nla_nest_end(cookie->msg, key);
3045
41ade00f
JB		 3046 return;
3047 nla_put_failure:
3048 cookie->error = 1;
3049}
3050
3051static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3052{
4c476991 3053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3054 int err;
4c476991 3055 struct net_device *dev = info->user_ptr[1];
41ade00f 3056 u8 key_idx = 0;
e31b8213
JB		 3057 const u8 *mac_addr = NULL;
3058 bool pairwise;
41ade00f
JB		 3059 struct get_key_cookie cookie = {
3060 .error = 0,
3061 };
3062 void *hdr;
3063 struct sk_buff *msg;
3064
3065 if (info->attrs[NL80211_ATTR_KEY_IDX])
3066 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3067
3cfcf6ac 3068 if (key_idx > 5)
41ade00f
JB		 3069 return -EINVAL;
3070
3071 if (info->attrs[NL80211_ATTR_MAC])
3072 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3073
e31b8213
JB		 3074 pairwise = !!mac_addr;
3075 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3076 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3077
e31b8213
JB		 3078 if (kt >= NUM_NL80211_KEYTYPES)
3079 return -EINVAL;
3080 if (kt != NL80211_KEYTYPE_GROUP &&
3081 kt != NL80211_KEYTYPE_PAIRWISE)
3082 return -EINVAL;
3083 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3084 }
3085
4c476991
JB		 3086 if (!rdev->ops->get_key)
3087 return -EOPNOTSUPP;
41ade00f 3088
0fa7b391
JB		 3089 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3090 return -ENOENT;
3091
fd2120ca 3092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3093 if (!msg)
3094 return -ENOMEM;
41ade00f 3095
15e47304 3096 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3097 NL80211_CMD_NEW_KEY);
cb35fba3 3098 if (!hdr)
9fe271af 3099 goto nla_put_failure;
41ade00f
JB		 3100
3101 cookie.msg = msg;
b9454e83 3102 cookie.idx = key_idx;
41ade00f 3103
9360ffd1
DM		 3104 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3105 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3106 goto nla_put_failure;
3107 if (mac_addr &&
3108 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3109 goto nla_put_failure;
41ade00f 3110
e35e4d28
HG		 3111 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3112 get_key_callback);
41ade00f
JB		 3113
3114 if (err)
6c95e2a2 3115 goto free_msg;
41ade00f
JB		 3116
3117 if (cookie.error)
3118 goto nla_put_failure;
3119
3120 genlmsg_end(msg, hdr);
4c476991 3121 return genlmsg_reply(msg, info);
41ade00f
JB		 3122
3123 nla_put_failure:
3124 err = -ENOBUFS;
6c95e2a2 3125 free_msg:
41ade00f 3126 nlmsg_free(msg);
41ade00f
JB		 3127 return err;
3128}
3129
3130static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3131{
4c476991 3132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3133 struct key_parse key;
41ade00f 3134 int err;
4c476991 3135 struct net_device *dev = info->user_ptr[1];
41ade00f 3136
b9454e83
JB		 3137 err = nl80211_parse_key(info, &key);
3138 if (err)
3139 return err;
41ade00f 3140
b9454e83 3141 if (key.idx < 0)
41ade00f
JB		 3142 return -EINVAL;
3143
b9454e83
JB		 3144 /* only support setting default key */
3145 if (!key.def && !key.defmgmt)
41ade00f
JB		 3146 return -EINVAL;
3147
dbd2fd65 3148 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3149
dbd2fd65
JB		 3150 if (key.def) {
3151 if (!rdev->ops->set_default_key) {
3152 err = -EOPNOTSUPP;
3153 goto out;
3154 }
41ade00f 3155
dbd2fd65
JB		 3156 err = nl80211_key_allowed(dev->ieee80211_ptr);
3157 if (err)
3158 goto out;
3159
e35e4d28 3160 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3161 key.def_uni, key.def_multi);
3162
3163 if (err)
3164 goto out;
fffd0934 3165
3d23e349 3166#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3167 dev->ieee80211_ptr->wext.default_key = key.idx;
3168#endif
3169 } else {
3170 if (key.def_uni || !key.def_multi) {
3171 err = -EINVAL;
3172 goto out;
3173 }
3174
3175 if (!rdev->ops->set_default_mgmt_key) {
3176 err = -EOPNOTSUPP;
3177 goto out;
3178 }
3179
3180 err = nl80211_key_allowed(dev->ieee80211_ptr);
3181 if (err)
3182 goto out;
3183
e35e4d28 3184 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3185 if (err)
3186 goto out;
3187
3188#ifdef CONFIG_CFG80211_WEXT
3189 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3190#endif
dbd2fd65
JB		 3191 }
3192
3193 out:
fffd0934 3194 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3195
41ade00f
JB		 3196 return err;
3197}
3198
3199static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3200{
4c476991 3201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3202 int err;
4c476991 3203 struct net_device *dev = info->user_ptr[1];
b9454e83 3204 struct key_parse key;
e31b8213 3205 const u8 *mac_addr = NULL;
41ade00f 3206
b9454e83
JB		 3207 err = nl80211_parse_key(info, &key);
3208 if (err)
3209 return err;
41ade00f 3210
b9454e83 3211 if (!key.p.key)
41ade00f
JB		 3212 return -EINVAL;
3213
41ade00f
JB		 3214 if (info->attrs[NL80211_ATTR_MAC])
3215 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3216
e31b8213
JB		 3217 if (key.type == -1) {
3218 if (mac_addr)
3219 key.type = NL80211_KEYTYPE_PAIRWISE;
3220 else
3221 key.type = NL80211_KEYTYPE_GROUP;
3222 }
3223
3224 /* for now */
3225 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3226 key.type != NL80211_KEYTYPE_GROUP)
3227 return -EINVAL;
3228
4c476991
JB		 3229 if (!rdev->ops->add_key)
3230 return -EOPNOTSUPP;
25e47c18 3231
e31b8213
JB		 3232 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3233 key.type == NL80211_KEYTYPE_PAIRWISE,
3234 mac_addr))
4c476991 3235 return -EINVAL;
41ade00f 3236
fffd0934
JB		 3237 wdev_lock(dev->ieee80211_ptr);
3238 err = nl80211_key_allowed(dev->ieee80211_ptr);
3239 if (!err)
e35e4d28
HG		 3240 err = rdev_add_key(rdev, dev, key.idx,
3241 key.type == NL80211_KEYTYPE_PAIRWISE,
3242 mac_addr, &key.p);
fffd0934 3243 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3244
41ade00f
JB		 3245 return err;
3246}
3247
3248static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3249{
4c476991 3250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3251 int err;
4c476991 3252 struct net_device *dev = info->user_ptr[1];
41ade00f 3253 u8 *mac_addr = NULL;
b9454e83 3254 struct key_parse key;
41ade00f 3255
b9454e83
JB		 3256 err = nl80211_parse_key(info, &key);
3257 if (err)
3258 return err;
41ade00f
JB		 3259
3260 if (info->attrs[NL80211_ATTR_MAC])
3261 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3262
e31b8213
JB		 3263 if (key.type == -1) {
3264 if (mac_addr)
3265 key.type = NL80211_KEYTYPE_PAIRWISE;
3266 else
3267 key.type = NL80211_KEYTYPE_GROUP;
3268 }
3269
3270 /* for now */
3271 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3272 key.type != NL80211_KEYTYPE_GROUP)
3273 return -EINVAL;
3274
4c476991
JB		 3275 if (!rdev->ops->del_key)
3276 return -EOPNOTSUPP;
41ade00f 3277
fffd0934
JB		 3278 wdev_lock(dev->ieee80211_ptr);
3279 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3280
0fa7b391 3281 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3282 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3283 err = -ENOENT;
3284
fffd0934 3285 if (!err)
e35e4d28
HG		 3286 err = rdev_del_key(rdev, dev, key.idx,
3287 key.type == NL80211_KEYTYPE_PAIRWISE,
3288 mac_addr);
41ade00f 3289
3d23e349 3290#ifdef CONFIG_CFG80211_WEXT
08645126 3291 if (!err) {
b9454e83 3292 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3293 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3294 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3295 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3296 }
3297#endif
fffd0934 3298 wdev_unlock(dev->ieee80211_ptr);
08645126 3299
41ade00f
JB		 3300 return err;
3301}
3302
77765eaf
VT		 3303/* This function returns an error or the number of nested attributes */
3304static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3305{
3306 struct nlattr *attr;
3307 int n_entries = 0, tmp;
3308
3309 nla_for_each_nested(attr, nl_attr, tmp) {
3310 if (nla_len(attr) != ETH_ALEN)
3311 return -EINVAL;
3312
3313 n_entries++;
3314 }
3315
3316 return n_entries;
3317}
3318
3319/*
3320 * This function parses ACL information and allocates memory for ACL data.
3321 * On successful return, the calling function is responsible to free the
3322 * ACL buffer returned by this function.
3323 */
3324static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3325 struct genl_info *info)
3326{
3327 enum nl80211_acl_policy acl_policy;
3328 struct nlattr *attr;
3329 struct cfg80211_acl_data *acl;
3330 int i = 0, n_entries, tmp;
3331
3332 if (!wiphy->max_acl_mac_addrs)
3333 return ERR_PTR(-EOPNOTSUPP);
3334
3335 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3336 return ERR_PTR(-EINVAL);
3337
3338 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3339 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3340 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3341 return ERR_PTR(-EINVAL);
3342
3343 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3344 return ERR_PTR(-EINVAL);
3345
3346 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3347 if (n_entries < 0)
3348 return ERR_PTR(n_entries);
3349
3350 if (n_entries > wiphy->max_acl_mac_addrs)
3351 return ERR_PTR(-ENOTSUPP);
3352
3353 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3354 GFP_KERNEL);
3355 if (!acl)
3356 return ERR_PTR(-ENOMEM);
3357
3358 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3359 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3360 i++;
3361 }
3362
3363 acl->n_acl_entries = n_entries;
3364 acl->acl_policy = acl_policy;
3365
3366 return acl;
3367}
3368
3369static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3370{
3371 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3372 struct net_device *dev = info->user_ptr[1];
3373 struct cfg80211_acl_data *acl;
3374 int err;
3375
3376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3377 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3378 return -EOPNOTSUPP;
3379
3380 if (!dev->ieee80211_ptr->beacon_interval)
3381 return -EINVAL;
3382
3383 acl = parse_acl_data(&rdev->wiphy, info);
3384 if (IS_ERR(acl))
3385 return PTR_ERR(acl);
3386
3387 err = rdev_set_mac_acl(rdev, dev, acl);
3388
3389 kfree(acl);
3390
3391 return err;
3392}
3393
a7c7fbff
PK		 3394static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3395 u8 *rates, u8 rates_len)
3396{
3397 u8 i;
3398 u32 mask = 0;
3399
3400 for (i = 0; i < rates_len; i++) {
3401 int rate = (rates[i] & 0x7f) * 5;
3402 int ridx;
3403
3404 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3405 struct ieee80211_rate *srate =
3406 &sband->bitrates[ridx];
3407 if (rate == srate->bitrate) {
3408 mask |= 1 << ridx;
3409 break;
3410 }
3411 }
3412 if (ridx == sband->n_bitrates)
3413 return 0; /* rate not found */
3414 }
3415
3416 return mask;
3417}
3418
3419static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3420 u8 *rates, u8 rates_len,
3421 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3422{
3423 u8 i;
3424
3425 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3426
3427 for (i = 0; i < rates_len; i++) {
3428 int ridx, rbit;
3429
3430 ridx = rates[i] / 8;
3431 rbit = BIT(rates[i] % 8);
3432
3433 /* check validity */
3434 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3435 return false;
3436
3437 /* check availability */
3438 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3439 mcs[ridx] |= rbit;
3440 else
3441 return false;
3442 }
3443
3444 return true;
3445}
3446
3447static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3448{
3449 u16 mcs_mask = 0;
3450
3451 switch (vht_mcs_map) {
3452 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3453 break;
3454 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3455 mcs_mask = 0x00FF;
3456 break;
3457 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3458 mcs_mask = 0x01FF;
3459 break;
3460 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3461 mcs_mask = 0x03FF;
3462 break;
3463 default:
3464 break;
3465 }
3466
3467 return mcs_mask;
3468}
3469
3470static void vht_build_mcs_mask(u16 vht_mcs_map,
3471 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3472{
3473 u8 nss;
3474
3475 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3476 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3477 vht_mcs_map >>= 2;
3478 }
3479}
3480
3481static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3482 struct nl80211_txrate_vht *txrate,
3483 u16 mcs[NL80211_VHT_NSS_MAX])
3484{
3485 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3486 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3487 u8 i;
3488
3489 if (!sband->vht_cap.vht_supported)
3490 return false;
3491
3492 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3493
3494 /* Build vht_mcs_mask from VHT capabilities */
3495 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3496
3497 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3498 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3499 mcs[i] = txrate->mcs[i];
3500 else
3501 return false;
3502 }
3503
3504 return true;
3505}
3506
3507static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3508 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3509 .len = NL80211_MAX_SUPP_RATES },
3510 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3511 .len = NL80211_MAX_SUPP_HT_RATES },
3512 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3513 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3514};
3515
3516static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3517 struct cfg80211_bitrate_mask *mask)
3518{
3519 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3521 int rem, i;
3522 struct nlattr *tx_rates;
3523 struct ieee80211_supported_band *sband;
3524 u16 vht_tx_mcs_map;
3525
3526 memset(mask, 0, sizeof(*mask));
3527 /* Default to all rates enabled */
3528 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3529 sband = rdev->wiphy.bands[i];
3530
3531 if (!sband)
3532 continue;
3533
3534 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3535 memcpy(mask->control[i].ht_mcs,
3536 sband->ht_cap.mcs.rx_mask,
3537 sizeof(mask->control[i].ht_mcs));
3538
3539 if (!sband->vht_cap.vht_supported)
3540 continue;
3541
3542 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3543 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3544 }
3545
3546 /* if no rates are given set it back to the defaults */
3547 if (!info->attrs[NL80211_ATTR_TX_RATES])
3548 goto out;
3549
3550 /* The nested attribute uses enum nl80211_band as the index. This maps
3551 * directly to the enum nl80211_band values used in cfg80211.
3552 */
3553 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3554 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3555 enum nl80211_band band = nla_type(tx_rates);
3556 int err;
3557
3558 if (band < 0 || band >= NUM_NL80211_BANDS)
3559 return -EINVAL;
3560 sband = rdev->wiphy.bands[band];
3561 if (sband == NULL)
3562 return -EINVAL;
bfe2c7b1 3563 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
fceb6435 3564 nl80211_txattr_policy, NULL);
a7c7fbff
PK		 3565 if (err)
3566 return err;
3567 if (tb[NL80211_TXRATE_LEGACY]) {
3568 mask->control[band].legacy = rateset_to_mask(
3569 sband,
3570 nla_data(tb[NL80211_TXRATE_LEGACY]),
3571 nla_len(tb[NL80211_TXRATE_LEGACY]));
3572 if ((mask->control[band].legacy == 0) &&
3573 nla_len(tb[NL80211_TXRATE_LEGACY]))
3574 return -EINVAL;
3575 }
3576 if (tb[NL80211_TXRATE_HT]) {
3577 if (!ht_rateset_to_mask(
3578 sband,
3579 nla_data(tb[NL80211_TXRATE_HT]),
3580 nla_len(tb[NL80211_TXRATE_HT]),
3581 mask->control[band].ht_mcs))
3582 return -EINVAL;
3583 }
3584 if (tb[NL80211_TXRATE_VHT]) {
3585 if (!vht_set_mcs_mask(
3586 sband,
3587 nla_data(tb[NL80211_TXRATE_VHT]),
3588 mask->control[band].vht_mcs))
3589 return -EINVAL;
3590 }
3591 if (tb[NL80211_TXRATE_GI]) {
3592 mask->control[band].gi =
3593 nla_get_u8(tb[NL80211_TXRATE_GI]);
3594 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3595 return -EINVAL;
3596 }
3597
3598 if (mask->control[band].legacy == 0) {
3599 /* don't allow empty legacy rates if HT or VHT
3600 * are not even supported.
3601 */
3602 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3603 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3604 return -EINVAL;
3605
3606 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3607 if (mask->control[band].ht_mcs[i])
3608 goto out;
3609
3610 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3611 if (mask->control[band].vht_mcs[i])
3612 goto out;
3613
3614 /* legacy and mcs rates may not be both empty */
3615 return -EINVAL;
3616 }
3617 }
3618
3619out:
3620 return 0;
3621}
3622
8564e382
JB		 3623static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3624 enum nl80211_band band,
3625 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3626{
8564e382
JB		 3627 u32 count_ht, count_vht, i;
3628 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3629
3630 /* Allow only one rate */
3631 if (hweight32(rate) > 1)
3632 return -EINVAL;
3633
3634 count_ht = 0;
3635 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3636 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3637 return -EINVAL;
8564e382 3638 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3639 count_ht++;
3640 if (count_ht > 1)
3641 return -EINVAL;
3642 }
3643 if (count_ht && rate)
3644 return -EINVAL;
3645 }
3646
3647 count_vht = 0;
3648 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3649 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3650 return -EINVAL;
8564e382 3651 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3652 count_vht++;
3653 if (count_vht > 1)
3654 return -EINVAL;
3655 }
3656 if (count_vht && rate)
3657 return -EINVAL;
3658 }
3659
3660 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3661 return -EINVAL;
3662
8564e382
JB		 3663 if (rate &&
3664 !wiphy_ext_feature_isset(&rdev->wiphy,
3665 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3666 return -EINVAL;
3667 if (count_ht &&
3668 !wiphy_ext_feature_isset(&rdev->wiphy,
3669 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3670 return -EINVAL;
3671 if (count_vht &&
3672 !wiphy_ext_feature_isset(&rdev->wiphy,
3673 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3674 return -EINVAL;
3675
a7c7fbff
PK		 3676 return 0;
3677}
3678
a1193be8 3679static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3680 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3681{
8860020e 3682 bool haveinfo = false;
ed1b6cc7 3683
a1193be8
SW		 3684 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3685 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3686 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3687 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3688 return -EINVAL;
3689
8860020e 3690 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3691
a1193be8
SW		 3692 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3693 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3694 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3695 if (!bcn->head_len)
3696 return -EINVAL;
3697 haveinfo = true;
ed1b6cc7
JB		 3698 }
3699
a1193be8
SW		 3700 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3701 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3702 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3703 haveinfo = true;
ed1b6cc7
JB		 3704 }
3705
4c476991
JB		 3706 if (!haveinfo)
3707 return -EINVAL;
3b85875a 3708
a1193be8
SW		 3709 if (attrs[NL80211_ATTR_IE]) {
3710 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3711 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3712 }
3713
a1193be8 3714 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3715 bcn->proberesp_ies =
a1193be8 3716 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3717 bcn->proberesp_ies_len =
a1193be8 3718 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3719 }
3720
a1193be8 3721 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3722 bcn->assocresp_ies =
a1193be8 3723 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3724 bcn->assocresp_ies_len =
a1193be8 3725 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3726 }
3727
a1193be8
SW		 3728 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3729 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3730 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3731 }
3732
8860020e
JB		 3733 return 0;
3734}
3735
66cd794e
JB		 3736static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3737 const u8 *rates)
3738{
3739 int i;
3740
3741 if (!rates)
3742 return;
3743
3744 for (i = 0; i < rates[1]; i++) {
3745 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3746 params->ht_required = true;
3747 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3748 params->vht_required = true;
3749 }
3750}
3751
3752/*
3753 * Since the nl80211 API didn't include, from the beginning, attributes about
3754 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3755 * benefit of drivers that rebuild IEs in the firmware.
3756 */
3757static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3758{
3759 const struct cfg80211_beacon_data *bcn = &params->beacon;
3760 size_t ies_len = bcn->beacon_ies_len;
3761 const u8 *ies = bcn->beacon_ies;
3762 const u8 *rates;
3763 const u8 *cap;
3764
3765 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3766 nl80211_check_ap_rate_selectors(params, rates);
3767
3768 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3769 nl80211_check_ap_rate_selectors(params, rates);
3770
3771 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3772 if (cap && cap[1] >= sizeof(*params->ht_cap))
3773 params->ht_cap = (void *)(cap + 2);
3774 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3775 if (cap && cap[1] >= sizeof(*params->vht_cap))
3776 params->vht_cap = (void *)(cap + 2);
3777}
3778
46c1dd0c
FF		 3779static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3780 struct cfg80211_ap_settings *params)
3781{
3782 struct wireless_dev *wdev;
3783 bool ret = false;
3784
53873f13 3785 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3786 if (wdev->iftype != NL80211_IFTYPE_AP &&
3787 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3788 continue;
3789
683b6d3b 3790 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3791 continue;
3792
683b6d3b 3793 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3794 ret = true;
3795 break;
3796 }
3797
46c1dd0c
FF		 3798 return ret;
3799}
3800
e39e5b5e
JM		 3801static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3802 enum nl80211_auth_type auth_type,
3803 enum nl80211_commands cmd)
3804{
3805 if (auth_type > NL80211_AUTHTYPE_MAX)
3806 return false;
3807
3808 switch (cmd) {
3809 case NL80211_CMD_AUTHENTICATE:
3810 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3811 auth_type == NL80211_AUTHTYPE_SAE)
3812 return false;
63181060
JM		 3813 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3814 NL80211_EXT_FEATURE_FILS_STA) &&
3815 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3816 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3817 auth_type == NL80211_AUTHTYPE_FILS_PK))
3818 return false;
e39e5b5e
JM		 3819 return true;
3820 case NL80211_CMD_CONNECT:
3821 case NL80211_CMD_START_AP:
3822 /* SAE not supported yet */
3823 if (auth_type == NL80211_AUTHTYPE_SAE)
3824 return false;
63181060
JM		 3825 /* FILS not supported yet */
3826 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3827 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3828 auth_type == NL80211_AUTHTYPE_FILS_PK)
3829 return false;
e39e5b5e
JM		 3830 return true;
3831 default:
3832 return false;
3833 }
3834}
3835
8860020e
JB		 3836static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3837{
3838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3839 struct net_device *dev = info->user_ptr[1];
3840 struct wireless_dev *wdev = dev->ieee80211_ptr;
3841 struct cfg80211_ap_settings params;
3842 int err;
3843
3844 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3845 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3846 return -EOPNOTSUPP;
3847
3848 if (!rdev->ops->start_ap)
3849 return -EOPNOTSUPP;
3850
3851 if (wdev->beacon_interval)
3852 return -EALREADY;
3853
3854 memset(&params, 0, sizeof(params));
3855
3856 /* these are required for START_AP */
3857 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3858 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3859 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3860 return -EINVAL;
3861
a1193be8 3862 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3863 if (err)
3864 return err;
3865
3866 params.beacon_interval =
3867 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3868 params.dtim_period =
3869 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3870
0c317a02
PK		 3871 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3872 params.beacon_interval);
8860020e
JB		 3873 if (err)
3874 return err;
3875
3876 /*
3877 * In theory, some of these attributes should be required here
3878 * but since they were not used when the command was originally
3879 * added, keep them optional for old user space programs to let
3880 * them continue to work with drivers that do not need the
3881 * additional information -- drivers must check!
3882 */
3883 if (info->attrs[NL80211_ATTR_SSID]) {
3884 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3885 params.ssid_len =
3886 nla_len(info->attrs[NL80211_ATTR_SSID]);
3887 if (params.ssid_len == 0 ||
3888 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3889 return -EINVAL;
3890 }
3891
3892 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3893 params.hidden_ssid = nla_get_u32(
3894 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3895 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3896 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3897 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3898 return -EINVAL;
3899 }
3900
3901 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3902
3903 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3904 params.auth_type = nla_get_u32(
3905 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3906 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3907 NL80211_CMD_START_AP))
8860020e
JB		 3908 return -EINVAL;
3909 } else
3910 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3911
3912 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3913 NL80211_MAX_NR_CIPHER_SUITES);
3914 if (err)
3915 return err;
3916
1b658f11
VT		 3917 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3918 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3919 return -EOPNOTSUPP;
3920 params.inactivity_timeout = nla_get_u16(
3921 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3922 }
3923
53cabad7
JB		 3924 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3925 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3926 return -EINVAL;
3927 params.p2p_ctwindow =
3928 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3929 if (params.p2p_ctwindow > 127)
3930 return -EINVAL;
3931 if (params.p2p_ctwindow != 0 &&
3932 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3933 return -EINVAL;
3934 }
3935
3936 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3937 u8 tmp;
3938
3939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3940 return -EINVAL;
3941 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3942 if (tmp > 1)
3943 return -EINVAL;
3944 params.p2p_opp_ps = tmp;
3945 if (params.p2p_opp_ps != 0 &&
3946 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3947 return -EINVAL;
3948 }
3949
aa430da4 3950 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3951 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3952 if (err)
3953 return err;
3954 } else if (wdev->preset_chandef.chan) {
3955 params.chandef = wdev->preset_chandef;
46c1dd0c 3956 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3957 return -EINVAL;
3958
923b352f
AN		 3959 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3960 wdev->iftype))
aa430da4
JB		 3961 return -EINVAL;
3962
a7c7fbff
PK		 3963 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3964 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
3965 if (err)
3966 return err;
3967
8564e382
JB		 3968 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3969 &params.beacon_rate);
a7c7fbff
PK		 3970 if (err)
3971 return err;
3972 }
3973
18998c38
EP		 3974 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3975 params.smps_mode =
3976 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3977 switch (params.smps_mode) {
3978 case NL80211_SMPS_OFF:
3979 break;
3980 case NL80211_SMPS_STATIC:
3981 if (!(rdev->wiphy.features &
3982 NL80211_FEATURE_STATIC_SMPS))
3983 return -EINVAL;
3984 break;
3985 case NL80211_SMPS_DYNAMIC:
3986 if (!(rdev->wiphy.features &
3987 NL80211_FEATURE_DYNAMIC_SMPS))
3988 return -EINVAL;
3989 break;
3990 default:
3991 return -EINVAL;
3992 }
3993 } else {
3994 params.smps_mode = NL80211_SMPS_OFF;
3995 }
3996
6e8ef842
PK		 3997 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3998 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3999 return -EOPNOTSUPP;
4000
4baf6bea
OO		 4001 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4002 params.acl = parse_acl_data(&rdev->wiphy, info);
4003 if (IS_ERR(params.acl))
4004 return PTR_ERR(params.acl);
4005 }
4006
66cd794e
JB		 4007 nl80211_calculate_ap_params(&params);
4008
c56589ed 4009 wdev_lock(wdev);
e35e4d28 4010 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 4011 if (!err) {
683b6d3b 4012 wdev->preset_chandef = params.chandef;
8860020e 4013 wdev->beacon_interval = params.beacon_interval;
9e0e2961 4014 wdev->chandef = params.chandef;
06e191e2
AQ		 4015 wdev->ssid_len = params.ssid_len;
4016 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 4017 }
c56589ed 4018 wdev_unlock(wdev);
77765eaf
VT		 4019
4020 kfree(params.acl);
4021
56d1893d 4022 return err;
ed1b6cc7
JB		 4023}
4024
8860020e
JB		 4025static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4026{
4027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4028 struct net_device *dev = info->user_ptr[1];
4029 struct wireless_dev *wdev = dev->ieee80211_ptr;
4030 struct cfg80211_beacon_data params;
4031 int err;
4032
4033 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4034 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4035 return -EOPNOTSUPP;
4036
4037 if (!rdev->ops->change_beacon)
4038 return -EOPNOTSUPP;
4039
4040 if (!wdev->beacon_interval)
4041 return -EINVAL;
4042
a1193be8 4043 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 4044 if (err)
4045 return err;
4046
c56589ed
SW		 4047 wdev_lock(wdev);
4048 err = rdev_change_beacon(rdev, dev, &params);
4049 wdev_unlock(wdev);
4050
4051 return err;
8860020e
JB		 4052}
4053
4054static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 4055{
4c476991
JB		 4056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4057 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 4058
7c8d5e03 4059 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 4060}
4061
5727ef1b
JB		 4062static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4063 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4064 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4065 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 4066 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 4067 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 4068 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 4069};
4070
eccb8e8f 4071static int parse_station_flags(struct genl_info *info,
bdd3ae3d 4072 enum nl80211_iftype iftype,
eccb8e8f 4073 struct station_parameters *params)
5727ef1b
JB		 4074{
4075 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 4076 struct nlattr *nla;
5727ef1b
JB		 4077 int flag;
4078
eccb8e8f
JB		 4079 /*
4080 * Try parsing the new attribute first so userspace
4081 * can specify both for older kernels.
4082 */
4083 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4084 if (nla) {
4085 struct nl80211_sta_flag_update *sta_flags;
4086
4087 sta_flags = nla_data(nla);
4088 params->sta_flags_mask = sta_flags->mask;
4089 params->sta_flags_set = sta_flags->set;
77ee7c89 4090 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 4091 if ((params->sta_flags_mask |
4092 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4093 return -EINVAL;
4094 return 0;
4095 }
4096
4097 /* if present, parse the old attribute */
5727ef1b 4098
eccb8e8f 4099 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 4100 if (!nla)
4101 return 0;
4102
fceb6435
JB		 4103 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
4104 sta_flags_policy, NULL))
5727ef1b
JB		 4105 return -EINVAL;
4106
bdd3ae3d
JB		 4107 /*
4108 * Only allow certain flags for interface types so that
4109 * other attributes are silently ignored. Remember that
4110 * this is backward compatibility code with old userspace
4111 * and shouldn't be hit in other cases anyway.
4112 */
4113 switch (iftype) {
4114 case NL80211_IFTYPE_AP:
4115 case NL80211_IFTYPE_AP_VLAN:
4116 case NL80211_IFTYPE_P2P_GO:
4117 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4118 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4119 BIT(NL80211_STA_FLAG_WME) |
4120 BIT(NL80211_STA_FLAG_MFP);
4121 break;
4122 case NL80211_IFTYPE_P2P_CLIENT:
4123 case NL80211_IFTYPE_STATION:
4124 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4125 BIT(NL80211_STA_FLAG_TDLS_PEER);
4126 break;
4127 case NL80211_IFTYPE_MESH_POINT:
4128 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4129 BIT(NL80211_STA_FLAG_MFP) |
4130 BIT(NL80211_STA_FLAG_AUTHORIZED);
4131 default:
4132 return -EINVAL;
4133 }
5727ef1b 4134
3383b5a6
JB		 4135 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4136 if (flags[flag]) {
eccb8e8f 4137 params->sta_flags_set |= (1<<flag);
5727ef1b 4138
3383b5a6
JB		 4139 /* no longer support new API additions in old API */
4140 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4141 return -EINVAL;
4142 }
4143 }
4144
5727ef1b
JB		 4145 return 0;
4146}
4147
c8dcfd8a
FF		 4148static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4149 int attr)
4150{
4151 struct nlattr *rate;
8eb41c8d
VK		 4152 u32 bitrate;
4153 u16 bitrate_compat;
b51f3bee 4154 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 4155
4156 rate = nla_nest_start(msg, attr);
4157 if (!rate)
db9c64cf 4158 return false;
c8dcfd8a
FF		 4159
4160 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4161 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4162 /* report 16-bit bitrate only if we can */
4163 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4164 if (bitrate > 0 &&
4165 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4166 return false;
4167 if (bitrate_compat > 0 &&
4168 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4169 return false;
4170
b51f3bee
JB		 4171 switch (info->bw) {
4172 case RATE_INFO_BW_5:
4173 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4174 break;
4175 case RATE_INFO_BW_10:
4176 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4177 break;
4178 default:
4179 WARN_ON(1);
4180 /* fall through */
4181 case RATE_INFO_BW_20:
4182 rate_flg = 0;
4183 break;
4184 case RATE_INFO_BW_40:
4185 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4186 break;
4187 case RATE_INFO_BW_80:
4188 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4189 break;
4190 case RATE_INFO_BW_160:
4191 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4192 break;
4193 }
4194
4195 if (rate_flg && nla_put_flag(msg, rate_flg))
4196 return false;
4197
db9c64cf
JB		 4198 if (info->flags & RATE_INFO_FLAGS_MCS) {
4199 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4200 return false;
db9c64cf
JB		 4201 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4202 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4203 return false;
4204 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4205 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4206 return false;
4207 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4208 return false;
db9c64cf
JB		 4209 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4210 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4211 return false;
4212 }
c8dcfd8a
FF		 4213
4214 nla_nest_end(msg, rate);
4215 return true;
c8dcfd8a
FF		 4216}
4217
119363c7
FF		 4218static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4219 int id)
4220{
4221 void *attr;
4222 int i = 0;
4223
4224 if (!mask)
4225 return true;
4226
4227 attr = nla_nest_start(msg, id);
4228 if (!attr)
4229 return false;
4230
4231 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4232 if (!(mask & BIT(i)))
4233 continue;
4234
4235 if (nla_put_u8(msg, i, signal[i]))
4236 return false;
4237 }
4238
4239 nla_nest_end(msg, attr);
4240
4241 return true;
4242}
4243
cf5ead82
JB		 4244static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4245 u32 seq, int flags,
66266b3a
JL		 4246 struct cfg80211_registered_device *rdev,
4247 struct net_device *dev,
98b62183 4248 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4249{
4250 void *hdr;
f4263c98 4251 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4252
cf5ead82 4253 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4254 if (!hdr)
4255 return -1;
4256
9360ffd1
DM		 4257 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4258 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4259 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4260 goto nla_put_failure;
f5ea9120 4261
2ec600d6
LCC		 4262 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4263 if (!sinfoattr)
fd5b74dc 4264 goto nla_put_failure;
319090bf
JB		 4265
4266#define PUT_SINFO(attr, memb, type) do { \
d686b920 4267 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4268 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4269 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4270 sinfo->memb)) \
4271 goto nla_put_failure; \
4272 } while (0)
d686b920
JB		 4273#define PUT_SINFO_U64(attr, memb) do { \
4274 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4275 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4276 sinfo->memb, NL80211_STA_INFO_PAD)) \
4277 goto nla_put_failure; \
4278 } while (0)
319090bf
JB		 4279
4280 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4281 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4282
4283 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4284 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4285 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4286 (u32)sinfo->rx_bytes))
9360ffd1 4287 goto nla_put_failure;
319090bf
JB		 4288
4289 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4290 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4291 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4292 (u32)sinfo->tx_bytes))
4293 goto nla_put_failure;
319090bf 4294
d686b920
JB		 4295 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4296 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4297 PUT_SINFO(LLID, llid, u16);
4298 PUT_SINFO(PLID, plid, u16);
4299 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4300 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4301
66266b3a
JL		 4302 switch (rdev->wiphy.signal_type) {
4303 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4304 PUT_SINFO(SIGNAL, signal, u8);
4305 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4306 break;
4307 default:
4308 break;
4309 }
319090bf 4310 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4311 if (!nl80211_put_signal(msg, sinfo->chains,
4312 sinfo->chain_signal,
4313 NL80211_STA_INFO_CHAIN_SIGNAL))
4314 goto nla_put_failure;
4315 }
319090bf 4316 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4317 if (!nl80211_put_signal(msg, sinfo->chains,
4318 sinfo->chain_signal_avg,
4319 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4320 goto nla_put_failure;
4321 }
319090bf 4322 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4323 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4324 NL80211_STA_INFO_TX_BITRATE))
4325 goto nla_put_failure;
4326 }
319090bf 4327 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4328 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4329 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4330 goto nla_put_failure;
420e7fab 4331 }
319090bf
JB		 4332
4333 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4334 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4335 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4336 PUT_SINFO(TX_FAILED, tx_failed, u32);
4337 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4338 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4339 PUT_SINFO(LOCAL_PM, local_pm, u32);
4340 PUT_SINFO(PEER_PM, peer_pm, u32);
4341 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4342
4343 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4344 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4345 if (!bss_param)
4346 goto nla_put_failure;
4347
9360ffd1
DM		 4348 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4349 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4350 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4351 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4352 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4353 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4354 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4355 sinfo->bss_param.dtim_period) ||
4356 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4357 sinfo->bss_param.beacon_interval))
4358 goto nla_put_failure;
f4263c98
PS		 4359
4360 nla_nest_end(msg, bss_param);
4361 }
319090bf 4362 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4363 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4364 sizeof(struct nl80211_sta_flag_update),
4365 &sinfo->sta_flags))
4366 goto nla_put_failure;
319090bf 4367
d686b920
JB		 4368 PUT_SINFO_U64(T_OFFSET, t_offset);
4369 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4370 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4371 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4372
4373#undef PUT_SINFO
d686b920 4374#undef PUT_SINFO_U64
6de39808
JB		 4375
4376 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4377 struct nlattr *tidsattr;
4378 int tid;
4379
4380 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4381 if (!tidsattr)
4382 goto nla_put_failure;
4383
4384 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4385 struct cfg80211_tid_stats *tidstats;
4386 struct nlattr *tidattr;
4387
4388 tidstats = &sinfo->pertid[tid];
4389
4390 if (!tidstats->filled)
4391 continue;
4392
4393 tidattr = nla_nest_start(msg, tid + 1);
4394 if (!tidattr)
4395 goto nla_put_failure;
4396
d686b920 4397#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4398 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4399 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4400 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4401 goto nla_put_failure; \
4402 } while (0)
4403
d686b920
JB		 4404 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4405 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4406 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4407 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4408
d686b920 4409#undef PUT_TIDVAL_U64
6de39808
JB		 4410 nla_nest_end(msg, tidattr);
4411 }
4412
4413 nla_nest_end(msg, tidsattr);
4414 }
4415
2ec600d6 4416 nla_nest_end(msg, sinfoattr);
fd5b74dc 4417
319090bf 4418 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4419 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4420 sinfo->assoc_req_ies))
4421 goto nla_put_failure;
50d3dfb7 4422
053c095a
JB		 4423 genlmsg_end(msg, hdr);
4424 return 0;
fd5b74dc
JB		 4425
4426 nla_put_failure:
bc3ed28c
TG		 4427 genlmsg_cancel(msg, hdr);
4428 return -EMSGSIZE;
fd5b74dc
JB		 4429}
4430
2ec600d6 4431static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4432 struct netlink_callback *cb)
2ec600d6 4433{
2ec600d6 4434 struct station_info sinfo;
1b8ec87a 4435 struct cfg80211_registered_device *rdev;
97990a06 4436 struct wireless_dev *wdev;
2ec600d6 4437 u8 mac_addr[ETH_ALEN];
97990a06 4438 int sta_idx = cb->args[2];
2ec600d6 4439 int err;
2ec600d6 4440
ea90e0dc 4441 rtnl_lock();
1b8ec87a 4442 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 4443 if (err)
ea90e0dc 4444 goto out_err;
bba95fef 4445
97990a06
JB		 4446 if (!wdev->netdev) {
4447 err = -EINVAL;
4448 goto out_err;
4449 }
4450
1b8ec87a 4451 if (!rdev->ops->dump_station) {
eec60b03 4452 err = -EOPNOTSUPP;
bba95fef
JB		 4453 goto out_err;
4454 }
4455
bba95fef 4456 while (1) {
f612cedf 4457 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4458 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4459 mac_addr, &sinfo);
bba95fef
JB		 4460 if (err == -ENOENT)
4461 break;
4462 if (err)
3b85875a 4463 goto out_err;
bba95fef 4464
cf5ead82 4465 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4466 NETLINK_CB(cb->skb).portid,
bba95fef 4467 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4468 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4469 &sinfo) < 0)
4470 goto out;
4471
4472 sta_idx++;
4473 }
4474
bba95fef 4475 out:
97990a06 4476 cb->args[2] = sta_idx;
bba95fef 4477 err = skb->len;
bba95fef 4478 out_err:
ea90e0dc 4479 rtnl_unlock();
bba95fef
JB		 4480
4481 return err;
2ec600d6 4482}
fd5b74dc 4483
5727ef1b
JB		 4484static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4485{
4c476991
JB		 4486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4487 struct net_device *dev = info->user_ptr[1];
2ec600d6 4488 struct station_info sinfo;
fd5b74dc
JB		 4489 struct sk_buff *msg;
4490 u8 *mac_addr = NULL;
4c476991 4491 int err;
fd5b74dc 4492
2ec600d6 4493 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4494
4495 if (!info->attrs[NL80211_ATTR_MAC])
4496 return -EINVAL;
4497
4498 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4499
4c476991
JB		 4500 if (!rdev->ops->get_station)
4501 return -EOPNOTSUPP;
3b85875a 4502
e35e4d28 4503 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4504 if (err)
4c476991 4505 return err;
2ec600d6 4506
fd2120ca 4507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4508 if (!msg)
4c476991 4509 return -ENOMEM;
fd5b74dc 4510
cf5ead82
JB		 4511 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4512 info->snd_portid, info->snd_seq, 0,
66266b3a 4513 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4514 nlmsg_free(msg);
4515 return -ENOBUFS;
4516 }
3b85875a 4517
4c476991 4518 return genlmsg_reply(msg, info);
5727ef1b
JB		 4519}
4520
77ee7c89
JB		 4521int cfg80211_check_station_change(struct wiphy *wiphy,
4522 struct station_parameters *params,
4523 enum cfg80211_station_type statype)
4524{
e4208427
AB		 4525 if (params->listen_interval != -1 &&
4526 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4527 return -EINVAL;
e4208427 4528
17b94247
AB		 4529 if (params->support_p2p_ps != -1 &&
4530 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4531 return -EINVAL;
4532
c72e1140 4533 if (params->aid &&
e4208427
AB		 4534 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4535 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4536 return -EINVAL;
4537
4538 /* When you run into this, adjust the code below for the new flag */
4539 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4540
4541 switch (statype) {
eef941e6
TP		 4542 case CFG80211_STA_MESH_PEER_KERNEL:
4543 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4544 /*
4545 * No ignoring the TDLS flag here -- the userspace mesh
4546 * code doesn't have the bug of including TDLS in the
4547 * mask everywhere.
4548 */
4549 if (params->sta_flags_mask &
4550 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4551 BIT(NL80211_STA_FLAG_MFP) |
4552 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4553 return -EINVAL;
4554 break;
4555 case CFG80211_STA_TDLS_PEER_SETUP:
4556 case CFG80211_STA_TDLS_PEER_ACTIVE:
4557 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4558 return -EINVAL;
4559 /* ignore since it can't change */
4560 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4561 break;
4562 default:
4563 /* disallow mesh-specific things */
4564 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4565 return -EINVAL;
4566 if (params->local_pm)
4567 return -EINVAL;
4568 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4569 return -EINVAL;
4570 }
4571
4572 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4573 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4574 /* TDLS can't be set, ... */
4575 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4576 return -EINVAL;
4577 /*
4578 * ... but don't bother the driver with it. This works around
4579 * a hostapd/wpa_supplicant issue -- it always includes the
4580 * TLDS_PEER flag in the mask even for AP mode.
4581 */
4582 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4583 }
4584
47edb11b
AB		 4585 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4586 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4587 /* reject other things that can't change */
4588 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4589 return -EINVAL;
4590 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4591 return -EINVAL;
4592 if (params->supported_rates)
4593 return -EINVAL;
4594 if (params->ext_capab || params->ht_capa || params->vht_capa)
4595 return -EINVAL;
4596 }
4597
47edb11b
AB		 4598 if (statype != CFG80211_STA_AP_CLIENT &&
4599 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4600 if (params->vlan)
4601 return -EINVAL;
4602 }
4603
4604 switch (statype) {
4605 case CFG80211_STA_AP_MLME_CLIENT:
4606 /* Use this only for authorizing/unauthorizing a station */
4607 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4608 return -EOPNOTSUPP;
4609 break;
4610 case CFG80211_STA_AP_CLIENT:
47edb11b 4611 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4612 /* accept only the listed bits */
4613 if (params->sta_flags_mask &
4614 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4615 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4616 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4617 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4618 BIT(NL80211_STA_FLAG_WME) |
4619 BIT(NL80211_STA_FLAG_MFP)))
4620 return -EINVAL;
4621
4622 /* but authenticated/associated only if driver handles it */
4623 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4624 params->sta_flags_mask &
4625 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4626 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4627 return -EINVAL;
4628 break;
4629 case CFG80211_STA_IBSS:
4630 case CFG80211_STA_AP_STA:
4631 /* reject any changes other than AUTHORIZED */
4632 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4633 return -EINVAL;
4634 break;
4635 case CFG80211_STA_TDLS_PEER_SETUP:
4636 /* reject any changes other than AUTHORIZED or WME */
4637 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4638 BIT(NL80211_STA_FLAG_WME)))
4639 return -EINVAL;
4640 /* force (at least) rates when authorizing */
4641 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4642 !params->supported_rates)
4643 return -EINVAL;
4644 break;
4645 case CFG80211_STA_TDLS_PEER_ACTIVE:
4646 /* reject any changes */
4647 return -EINVAL;
eef941e6 4648 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4649 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4650 return -EINVAL;
4651 break;
eef941e6 4652 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4653 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4654 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4655 return -EINVAL;
4656 break;
4657 }
4658
06f7c88c
BL		 4659 /*
4660 * Older kernel versions ignored this attribute entirely, so don't
4661 * reject attempts to update it but mark it as unused instead so the
4662 * driver won't look at the data.
4663 */
4664 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4665 statype != CFG80211_STA_TDLS_PEER_SETUP)
4666 params->opmode_notif_used = false;
4667
77ee7c89
JB		 4668 return 0;
4669}
4670EXPORT_SYMBOL(cfg80211_check_station_change);
4671
5727ef1b 4672/*
c258d2de 4673 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4674 */
80b99899
JB		 4675static struct net_device *get_vlan(struct genl_info *info,
4676 struct cfg80211_registered_device *rdev)
5727ef1b 4677{
463d0183 4678 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4679 struct net_device *v;
4680 int ret;
4681
4682 if (!vlanattr)
4683 return NULL;
4684
4685 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4686 if (!v)
4687 return ERR_PTR(-ENODEV);
4688
4689 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4690 ret = -EINVAL;
4691 goto error;
5727ef1b 4692 }
80b99899 4693
77ee7c89
JB		 4694 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4695 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4696 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4697 ret = -EINVAL;
4698 goto error;
4699 }
4700
80b99899
JB		 4701 if (!netif_running(v)) {
4702 ret = -ENETDOWN;
4703 goto error;
4704 }
4705
4706 return v;
4707 error:
4708 dev_put(v);
4709 return ERR_PTR(ret);
5727ef1b
JB		 4710}
4711
94e860f1
JB		 4712static const struct nla_policy
4713nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4714 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4715 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4716};
4717
ff276691
JB		 4718static int nl80211_parse_sta_wme(struct genl_info *info,
4719 struct station_parameters *params)
df881293 4720{
df881293
JM		 4721 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4722 struct nlattr *nla;
4723 int err;
4724
df881293
JM		 4725 /* parse WME attributes if present */
4726 if (!info->attrs[NL80211_ATTR_STA_WME])
4727 return 0;
4728
4729 nla = info->attrs[NL80211_ATTR_STA_WME];
4730 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
fceb6435 4731 nl80211_sta_wme_policy, NULL);
df881293
JM		 4732 if (err)
4733 return err;
4734
4735 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4736 params->uapsd_queues = nla_get_u8(
4737 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4738 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4739 return -EINVAL;
4740
4741 if (tb[NL80211_STA_WME_MAX_SP])
4742 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4743
4744 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4745 return -EINVAL;
4746
4747 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4748
4749 return 0;
4750}
4751
c01fc9ad
SD		 4752static int nl80211_parse_sta_channel_info(struct genl_info *info,
4753 struct station_parameters *params)
4754{
4755 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4756 params->supported_channels =
4757 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4758 params->supported_channels_len =
4759 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4760 /*
4761 * Need to include at least one (first channel, number of
4762 * channels) tuple for each subband, and must have proper
4763 * tuples for the rest of the data as well.
4764 */
4765 if (params->supported_channels_len < 2)
4766 return -EINVAL;
4767 if (params->supported_channels_len % 2)
4768 return -EINVAL;
4769 }
4770
4771 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4772 params->supported_oper_classes =
4773 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4774 params->supported_oper_classes_len =
4775 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4776 /*
4777 * The value of the Length field of the Supported Operating
4778 * Classes element is between 2 and 253.
4779 */
4780 if (params->supported_oper_classes_len < 2 ||
4781 params->supported_oper_classes_len > 253)
4782 return -EINVAL;
4783 }
4784 return 0;
4785}
4786
ff276691
JB		 4787static int nl80211_set_station_tdls(struct genl_info *info,
4788 struct station_parameters *params)
4789{
c01fc9ad 4790 int err;
ff276691 4791 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4792 if (info->attrs[NL80211_ATTR_PEER_AID])
4793 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4794 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4795 params->ht_capa =
4796 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4797 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4798 params->vht_capa =
4799 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4800
c01fc9ad
SD		 4801 err = nl80211_parse_sta_channel_info(info, params);
4802 if (err)
4803 return err;
4804
ff276691
JB		 4805 return nl80211_parse_sta_wme(info, params);
4806}
4807
5727ef1b
JB		 4808static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4809{
4c476991 4810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4811 struct net_device *dev = info->user_ptr[1];
5727ef1b 4812 struct station_parameters params;
77ee7c89
JB		 4813 u8 *mac_addr;
4814 int err;
5727ef1b
JB		 4815
4816 memset(&params, 0, sizeof(params));
4817
77ee7c89
JB		 4818 if (!rdev->ops->change_station)
4819 return -EOPNOTSUPP;
4820
e4208427
AB		 4821 /*
4822 * AID and listen_interval properties can be set only for unassociated
4823 * station. Include these parameters here and will check them in
4824 * cfg80211_check_station_change().
4825 */
a9bc31e4
AB		 4826 if (info->attrs[NL80211_ATTR_STA_AID])
4827 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4828
4829 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4830 params.listen_interval =
4831 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4832 else
4833 params.listen_interval = -1;
5727ef1b 4834
17b94247
AB		 4835 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4836 u8 tmp;
4837
4838 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4839 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4840 return -EINVAL;
4841
4842 params.support_p2p_ps = tmp;
4843 } else {
4844 params.support_p2p_ps = -1;
4845 }
4846
5727ef1b
JB		 4847 if (!info->attrs[NL80211_ATTR_MAC])
4848 return -EINVAL;
4849
4850 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4851
4852 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4853 params.supported_rates =
4854 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4855 params.supported_rates_len =
4856 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4857 }
4858
9d62a986
JM		 4859 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4860 params.capability =
4861 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4862 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4863 }
4864
4865 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4866 params.ext_capab =
4867 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4868 params.ext_capab_len =
4869 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4870 }
4871
bdd3ae3d 4872 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4873 return -EINVAL;
4874
f8bacc21 4875 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4876 params.plink_action =
f8bacc21
JB		 4877 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4878 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4879 return -EINVAL;
4880 }
2ec600d6 4881
f8bacc21 4882 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4883 params.plink_state =
f8bacc21
JB		 4884 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4885 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4886 return -EINVAL;
7d27a0ba
MH		 4887 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4888 params.peer_aid = nla_get_u16(
4889 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4890 if (params.peer_aid > IEEE80211_MAX_AID)
4891 return -EINVAL;
4892 }
f8bacc21
JB		 4893 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4894 }
9c3990aa 4895
3b1c5a53
MP		 4896 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4897 enum nl80211_mesh_power_mode pm = nla_get_u32(
4898 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4899
4900 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4901 pm > NL80211_MESH_POWER_MAX)
4902 return -EINVAL;
4903
4904 params.local_pm = pm;
4905 }
4906
06f7c88c
BL		 4907 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4908 params.opmode_notif_used = true;
4909 params.opmode_notif =
4910 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4911 }
4912
77ee7c89
JB		 4913 /* Include parameters for TDLS peer (will check later) */
4914 err = nl80211_set_station_tdls(info, &params);
4915 if (err)
4916 return err;
4917
4918 params.vlan = get_vlan(info, rdev);
4919 if (IS_ERR(params.vlan))
4920 return PTR_ERR(params.vlan);
4921
a97f4424
JB		 4922 switch (dev->ieee80211_ptr->iftype) {
4923 case NL80211_IFTYPE_AP:
4924 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4925 case NL80211_IFTYPE_P2P_GO:
074ac8df 4926 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4927 case NL80211_IFTYPE_STATION:
267335d6 4928 case NL80211_IFTYPE_ADHOC:
a97f4424 4929 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4930 break;
4931 default:
77ee7c89
JB		 4932 err = -EOPNOTSUPP;
4933 goto out_put_vlan;
034d655e
JB		 4934 }
4935
77ee7c89 4936 /* driver will call cfg80211_check_station_change() */
e35e4d28 4937 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4938
77ee7c89 4939 out_put_vlan:
5727ef1b
JB		 4940 if (params.vlan)
4941 dev_put(params.vlan);
3b85875a 4942
5727ef1b
JB		 4943 return err;
4944}
4945
4946static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4947{
4c476991 4948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4949 int err;
4c476991 4950 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4951 struct station_parameters params;
4952 u8 *mac_addr = NULL;
bda95eb1
JB		 4953 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4954 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4955
4956 memset(&params, 0, sizeof(params));
4957
984c311b
JB		 4958 if (!rdev->ops->add_station)
4959 return -EOPNOTSUPP;
4960
5727ef1b
JB		 4961 if (!info->attrs[NL80211_ATTR_MAC])
4962 return -EINVAL;
4963
5727ef1b
JB		 4964 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4965 return -EINVAL;
4966
4967 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4968 return -EINVAL;
4969
5e4b6f56
JM		 4970 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4971 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4972 return -EINVAL;
4973
5727ef1b
JB		 4974 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4975 params.supported_rates =
4976 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4977 params.supported_rates_len =
4978 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4979 params.listen_interval =
4980 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4981
17b94247
AB		 4982 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4983 u8 tmp;
4984
4985 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4986 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4987 return -EINVAL;
4988
4989 params.support_p2p_ps = tmp;
4990 } else {
4991 /*
4992 * if not specified, assume it's supported for P2P GO interface,
4993 * and is NOT supported for AP interface
4994 */
4995 params.support_p2p_ps =
4996 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4997 }
4998
3d124ea2 4999 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 5000 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 5001 else
5002 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 5003 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5004 return -EINVAL;
51b50fbe 5005
9d62a986
JM		 5006 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5007 params.capability =
5008 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5009 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5010 }
5011
5012 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5013 params.ext_capab =
5014 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5015 params.ext_capab_len =
5016 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5017 }
5018
36aedc90
JM		 5019 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5020 params.ht_capa =
5021 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 5022
f461be3e
MP		 5023 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5024 params.vht_capa =
5025 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5026
60f4a7b1
MK		 5027 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5028 params.opmode_notif_used = true;
5029 params.opmode_notif =
5030 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5031 }
5032
f8bacc21 5033 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 5034 params.plink_action =
f8bacc21
JB		 5035 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5036 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5037 return -EINVAL;
5038 }
96b78dff 5039
c01fc9ad
SD		 5040 err = nl80211_parse_sta_channel_info(info, &params);
5041 if (err)
5042 return err;
5043
ff276691
JB		 5044 err = nl80211_parse_sta_wme(info, &params);
5045 if (err)
5046 return err;
bdd90d5e 5047
bdd3ae3d 5048 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 5049 return -EINVAL;
5050
496fcc29
JB		 5051 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5052 * as userspace might just pass through the capabilities from the IEs
5053 * directly, rather than enforcing this restriction and returning an
5054 * error in this case.
5055 */
5056 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5057 params.ht_capa = NULL;
5058 params.vht_capa = NULL;
5059 }
5060
77ee7c89
JB		 5061 /* When you run into this, adjust the code below for the new flag */
5062 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5063
bdd90d5e
JB		 5064 switch (dev->ieee80211_ptr->iftype) {
5065 case NL80211_IFTYPE_AP:
5066 case NL80211_IFTYPE_AP_VLAN:
5067 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 5068 /* ignore WME attributes if iface/sta is not capable */
5069 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5070 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5071 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 5072
bdd90d5e 5073 /* TDLS peers cannot be added */
3d124ea2
JM		 5074 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5075 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 5076 return -EINVAL;
bdd90d5e
JB		 5077 /* but don't bother the driver with it */
5078 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5079
d582cffb
JB		 5080 /* allow authenticated/associated only if driver handles it */
5081 if (!(rdev->wiphy.features &
5082 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5083 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5084 return -EINVAL;
5085
bda95eb1
JB		 5086 /* Older userspace, or userspace wanting to be compatible with
5087 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5088 * and assoc flags in the mask, but assumes the station will be
5089 * added as associated anyway since this was the required driver
5090 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5091 * introduced.
5092 * In order to not bother drivers with this quirk in the API
5093 * set the flags in both the mask and set for new stations in
5094 * this case.
5095 */
5096 if (!(params.sta_flags_mask & auth_assoc)) {
5097 params.sta_flags_mask |= auth_assoc;
5098 params.sta_flags_set |= auth_assoc;
5099 }
5100
bdd90d5e
JB		 5101 /* must be last in here for error handling */
5102 params.vlan = get_vlan(info, rdev);
5103 if (IS_ERR(params.vlan))
5104 return PTR_ERR(params.vlan);
5105 break;
5106 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5107 /* ignore uAPSD data */
5108 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5109
d582cffb
JB		 5110 /* associated is disallowed */
5111 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5112 return -EINVAL;
bdd90d5e 5113 /* TDLS peers cannot be added */
3d124ea2
JM		 5114 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5115 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 5116 return -EINVAL;
5117 break;
5118 case NL80211_IFTYPE_STATION:
93d08f0b 5119 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5120 /* ignore uAPSD data */
5121 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5122
77ee7c89
JB		 5123 /* these are disallowed */
5124 if (params.sta_flags_mask &
5125 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5126 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5127 return -EINVAL;
bdd90d5e
JB		 5128 /* Only TDLS peers can be added */
5129 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5130 return -EINVAL;
5131 /* Can only add if TDLS ... */
5132 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5133 return -EOPNOTSUPP;
5134 /* ... with external setup is supported */
5135 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5136 return -EOPNOTSUPP;
77ee7c89
JB		 5137 /*
5138 * Older wpa_supplicant versions always mark the TDLS peer
5139 * as authorized, but it shouldn't yet be.
5140 */
5141 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5142 break;
5143 default:
5144 return -EOPNOTSUPP;
c75786c9
EP		 5145 }
5146
bdd90d5e 5147 /* be aware of params.vlan when changing code here */
5727ef1b 5148
e35e4d28 5149 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5150
5727ef1b
JB		 5151 if (params.vlan)
5152 dev_put(params.vlan);
5727ef1b
JB		 5153 return err;
5154}
5155
5156static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5157{
4c476991
JB		 5158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5159 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5160 struct station_del_parameters params;
5161
5162 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5163
5164 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5165 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5166
e80cf853 5167 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5168 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5169 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5170 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5171 return -EINVAL;
5727ef1b 5172
4c476991
JB		 5173 if (!rdev->ops->del_station)
5174 return -EOPNOTSUPP;
3b85875a 5175
98856866
JM		 5176 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5177 params.subtype =
5178 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5179 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5180 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5181 return -EINVAL;
5182 } else {
5183 /* Default to Deauthentication frame */
5184 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5185 }
5186
5187 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5188 params.reason_code =
5189 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5190 if (params.reason_code == 0)
5191 return -EINVAL; /* 0 is reserved */
5192 } else {
5193 /* Default to reason code 2 */
5194 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5195 }
5196
89c771e5 5197 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5198}
5199
15e47304 5200static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5201 int flags, struct net_device *dev,
5202 u8 *dst, u8 *next_hop,
5203 struct mpath_info *pinfo)
5204{
5205 void *hdr;
5206 struct nlattr *pinfoattr;
5207
1ef4c850 5208 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5209 if (!hdr)
5210 return -1;
5211
9360ffd1
DM		 5212 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5213 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5214 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5215 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5216 goto nla_put_failure;
f5ea9120 5217
2ec600d6
LCC		 5218 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5219 if (!pinfoattr)
5220 goto nla_put_failure;
9360ffd1
DM		 5221 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5222 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5223 pinfo->frame_qlen))
5224 goto nla_put_failure;
5225 if (((pinfo->filled & MPATH_INFO_SN) &&
5226 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5227 ((pinfo->filled & MPATH_INFO_METRIC) &&
5228 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5229 pinfo->metric)) ||
5230 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5231 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5232 pinfo->exptime)) ||
5233 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5234 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5235 pinfo->flags)) ||
5236 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5237 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5238 pinfo->discovery_timeout)) ||
5239 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5240 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5241 pinfo->discovery_retries)))
5242 goto nla_put_failure;
2ec600d6
LCC		 5243
5244 nla_nest_end(msg, pinfoattr);
5245
053c095a
JB		 5246 genlmsg_end(msg, hdr);
5247 return 0;
2ec600d6
LCC		 5248
5249 nla_put_failure:
bc3ed28c
TG		 5250 genlmsg_cancel(msg, hdr);
5251 return -EMSGSIZE;
2ec600d6
LCC		 5252}
5253
5254static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5255 struct netlink_callback *cb)
2ec600d6 5256{
2ec600d6 5257 struct mpath_info pinfo;
1b8ec87a 5258 struct cfg80211_registered_device *rdev;
97990a06 5259 struct wireless_dev *wdev;
2ec600d6
LCC		 5260 u8 dst[ETH_ALEN];
5261 u8 next_hop[ETH_ALEN];
97990a06 5262 int path_idx = cb->args[2];
2ec600d6 5263 int err;
2ec600d6 5264
ea90e0dc 5265 rtnl_lock();
1b8ec87a 5266 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 5267 if (err)
ea90e0dc 5268 goto out_err;
bba95fef 5269
1b8ec87a 5270 if (!rdev->ops->dump_mpath) {
eec60b03 5271 err = -EOPNOTSUPP;
bba95fef
JB		 5272 goto out_err;
5273 }
5274
97990a06 5275 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5276 err = -EOPNOTSUPP;
0448b5fc 5277 goto out_err;
eec60b03
JM		 5278 }
5279
bba95fef 5280 while (1) {
1b8ec87a 5281 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5282 next_hop, &pinfo);
bba95fef 5283 if (err == -ENOENT)
2ec600d6 5284 break;
bba95fef 5285 if (err)
3b85875a 5286 goto out_err;
2ec600d6 5287
15e47304 5288 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5289 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5290 wdev->netdev, dst, next_hop,
bba95fef
JB		 5291 &pinfo) < 0)
5292 goto out;
2ec600d6 5293
bba95fef 5294 path_idx++;
2ec600d6 5295 }
2ec600d6 5296
bba95fef 5297 out:
97990a06 5298 cb->args[2] = path_idx;
bba95fef 5299 err = skb->len;
bba95fef 5300 out_err:
ea90e0dc 5301 rtnl_unlock();
bba95fef 5302 return err;
2ec600d6
LCC		 5303}
5304
5305static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5306{
4c476991 5307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5308 int err;
4c476991 5309 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5310 struct mpath_info pinfo;
5311 struct sk_buff *msg;
5312 u8 *dst = NULL;
5313 u8 next_hop[ETH_ALEN];
5314
5315 memset(&pinfo, 0, sizeof(pinfo));
5316
5317 if (!info->attrs[NL80211_ATTR_MAC])
5318 return -EINVAL;
5319
5320 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5321
4c476991
JB		 5322 if (!rdev->ops->get_mpath)
5323 return -EOPNOTSUPP;
2ec600d6 5324
4c476991
JB		 5325 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5326 return -EOPNOTSUPP;
eec60b03 5327
e35e4d28 5328 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5329 if (err)
4c476991 5330 return err;
2ec600d6 5331
fd2120ca 5332 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5333 if (!msg)
4c476991 5334 return -ENOMEM;
2ec600d6 5335
15e47304 5336 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5337 dev, dst, next_hop, &pinfo) < 0) {
5338 nlmsg_free(msg);
5339 return -ENOBUFS;
5340 }
3b85875a 5341
4c476991 5342 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5343}
5344
5345static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5346{
4c476991
JB		 5347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5348 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5349 u8 *dst = NULL;
5350 u8 *next_hop = NULL;
5351
5352 if (!info->attrs[NL80211_ATTR_MAC])
5353 return -EINVAL;
5354
5355 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5356 return -EINVAL;
5357
5358 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5359 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5360
4c476991
JB		 5361 if (!rdev->ops->change_mpath)
5362 return -EOPNOTSUPP;
35a8efe1 5363
4c476991
JB		 5364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5365 return -EOPNOTSUPP;
2ec600d6 5366
e35e4d28 5367 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5368}
4c476991 5369
2ec600d6
LCC		 5370static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5371{
4c476991
JB		 5372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5373 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5374 u8 *dst = NULL;
5375 u8 *next_hop = NULL;
5376
5377 if (!info->attrs[NL80211_ATTR_MAC])
5378 return -EINVAL;
5379
5380 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5381 return -EINVAL;
5382
5383 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5384 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5385
4c476991
JB		 5386 if (!rdev->ops->add_mpath)
5387 return -EOPNOTSUPP;
35a8efe1 5388
4c476991
JB		 5389 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5390 return -EOPNOTSUPP;
2ec600d6 5391
e35e4d28 5392 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5393}
5394
5395static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5396{
4c476991
JB		 5397 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5398 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5399 u8 *dst = NULL;
5400
5401 if (info->attrs[NL80211_ATTR_MAC])
5402 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5403
4c476991
JB		 5404 if (!rdev->ops->del_mpath)
5405 return -EOPNOTSUPP;
3b85875a 5406
e35e4d28 5407 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5408}
5409
66be7d2b
HR		 5410static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5411{
5412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5413 int err;
5414 struct net_device *dev = info->user_ptr[1];
5415 struct mpath_info pinfo;
5416 struct sk_buff *msg;
5417 u8 *dst = NULL;
5418 u8 mpp[ETH_ALEN];
5419
5420 memset(&pinfo, 0, sizeof(pinfo));
5421
5422 if (!info->attrs[NL80211_ATTR_MAC])
5423 return -EINVAL;
5424
5425 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5426
5427 if (!rdev->ops->get_mpp)
5428 return -EOPNOTSUPP;
5429
5430 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5431 return -EOPNOTSUPP;
5432
5433 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5434 if (err)
5435 return err;
5436
5437 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5438 if (!msg)
5439 return -ENOMEM;
5440
5441 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5442 dev, dst, mpp, &pinfo) < 0) {
5443 nlmsg_free(msg);
5444 return -ENOBUFS;
5445 }
5446
5447 return genlmsg_reply(msg, info);
5448}
5449
5450static int nl80211_dump_mpp(struct sk_buff *skb,
5451 struct netlink_callback *cb)
5452{
5453 struct mpath_info pinfo;
5454 struct cfg80211_registered_device *rdev;
5455 struct wireless_dev *wdev;
5456 u8 dst[ETH_ALEN];
5457 u8 mpp[ETH_ALEN];
5458 int path_idx = cb->args[2];
5459 int err;
5460
ea90e0dc 5461 rtnl_lock();
66be7d2b
HR		 5462 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5463 if (err)
ea90e0dc 5464 goto out_err;
66be7d2b
HR		 5465
5466 if (!rdev->ops->dump_mpp) {
5467 err = -EOPNOTSUPP;
5468 goto out_err;
5469 }
5470
5471 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5472 err = -EOPNOTSUPP;
5473 goto out_err;
5474 }
5475
5476 while (1) {
5477 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5478 mpp, &pinfo);
5479 if (err == -ENOENT)
5480 break;
5481 if (err)
5482 goto out_err;
5483
5484 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5485 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5486 wdev->netdev, dst, mpp,
5487 &pinfo) < 0)
5488 goto out;
5489
5490 path_idx++;
5491 }
5492
5493 out:
5494 cb->args[2] = path_idx;
5495 err = skb->len;
5496 out_err:
ea90e0dc 5497 rtnl_unlock();
66be7d2b
HR		 5498 return err;
5499}
5500
9f1ba906
JM		 5501static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5502{
4c476991
JB		 5503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5504 struct net_device *dev = info->user_ptr[1];
c56589ed 5505 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5506 struct bss_parameters params;
c56589ed 5507 int err;
9f1ba906
JM		 5508
5509 memset(&params, 0, sizeof(params));
5510 /* default to not changing parameters */
5511 params.use_cts_prot = -1;
5512 params.use_short_preamble = -1;
5513 params.use_short_slot_time = -1;
fd8aaaf3 5514 params.ap_isolate = -1;
50b12f59 5515 params.ht_opmode = -1;
53cabad7
JB		 5516 params.p2p_ctwindow = -1;
5517 params.p2p_opp_ps = -1;
9f1ba906
JM		 5518
5519 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5520 params.use_cts_prot =
5521 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5522 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5523 params.use_short_preamble =
5524 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5525 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5526 params.use_short_slot_time =
5527 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5528 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5529 params.basic_rates =
5530 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5531 params.basic_rates_len =
5532 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5533 }
fd8aaaf3
FF		 5534 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5535 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5536 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5537 params.ht_opmode =
5538 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5539
53cabad7
JB		 5540 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5541 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5542 return -EINVAL;
5543 params.p2p_ctwindow =
5544 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5545 if (params.p2p_ctwindow < 0)
5546 return -EINVAL;
5547 if (params.p2p_ctwindow != 0 &&
5548 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5549 return -EINVAL;
5550 }
5551
5552 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5553 u8 tmp;
5554
5555 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5556 return -EINVAL;
5557 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5558 if (tmp > 1)
5559 return -EINVAL;
5560 params.p2p_opp_ps = tmp;
5561 if (params.p2p_opp_ps &&
5562 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5563 return -EINVAL;
5564 }
5565
4c476991
JB		 5566 if (!rdev->ops->change_bss)
5567 return -EOPNOTSUPP;
9f1ba906 5568
074ac8df 5569 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5570 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5571 return -EOPNOTSUPP;
3b85875a 5572
c56589ed
SW		 5573 wdev_lock(wdev);
5574 err = rdev_change_bss(rdev, dev, &params);
5575 wdev_unlock(wdev);
5576
5577 return err;
9f1ba906
JM		 5578}
5579
b2e1b302
LR		 5580static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5581{
b2e1b302 5582 char *data = NULL;
05050753 5583 bool is_indoor;
57b5ce07 5584 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5585 u32 owner_nlportid;
5586
80778f18
LR		 5587 /*
5588 * You should only get this when cfg80211 hasn't yet initialized
5589 * completely when built-in to the kernel right between the time
5590 * window between nl80211_init() and regulatory_init(), if that is
5591 * even possible.
5592 */
458f4f9e 5593 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5594 return -EINPROGRESS;
80778f18 5595
57b5ce07
LR		 5596 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5597 user_reg_hint_type =
5598 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5599 else
5600 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5601
5602 switch (user_reg_hint_type) {
5603 case NL80211_USER_REG_HINT_USER:
5604 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5605 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5606 return -EINVAL;
5607
5608 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5609 return regulatory_hint_user(data, user_reg_hint_type);
5610 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5611 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5612 owner_nlportid = info->snd_portid;
5613 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5614 } else {
5615 owner_nlportid = 0;
5616 is_indoor = true;
5617 }
5618
5619 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5620 default:
5621 return -EINVAL;
5622 }
b2e1b302
LR		 5623}
5624
24bdd9f4 5625static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5626 struct genl_info *info)
93da9cc1 5627{
4c476991 5628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5629 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5630 struct wireless_dev *wdev = dev->ieee80211_ptr;
5631 struct mesh_config cur_params;
5632 int err = 0;
93da9cc1 5633 void *hdr;
5634 struct nlattr *pinfoattr;
5635 struct sk_buff *msg;
5636
29cbe68c
JB		 5637 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5638 return -EOPNOTSUPP;
5639
24bdd9f4 5640 if (!rdev->ops->get_mesh_config)
4c476991 5641 return -EOPNOTSUPP;
f3f92586 5642
29cbe68c
JB		 5643 wdev_lock(wdev);
5644 /* If not connected, get default parameters */
5645 if (!wdev->mesh_id_len)
5646 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5647 else
e35e4d28 5648 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5649 wdev_unlock(wdev);
5650
93da9cc1 5651 if (err)
4c476991 5652 return err;
93da9cc1 5653
5654 /* Draw up a netlink message to send back */
fd2120ca 5655 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5656 if (!msg)
5657 return -ENOMEM;
15e47304 5658 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5659 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5660 if (!hdr)
efe1cf0c 5661 goto out;
24bdd9f4 5662 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5663 if (!pinfoattr)
5664 goto nla_put_failure;
9360ffd1
DM		 5665 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5666 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5667 cur_params.dot11MeshRetryTimeout) ||
5668 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5669 cur_params.dot11MeshConfirmTimeout) ||
5670 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5671 cur_params.dot11MeshHoldingTimeout) ||
5672 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5673 cur_params.dot11MeshMaxPeerLinks) ||
5674 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5675 cur_params.dot11MeshMaxRetries) ||
5676 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5677 cur_params.dot11MeshTTL) ||
5678 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5679 cur_params.element_ttl) ||
5680 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5681 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5682 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5683 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5684 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5685 cur_params.dot11MeshHWMPmaxPREQretries) ||
5686 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5687 cur_params.path_refresh_time) ||
5688 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5689 cur_params.min_discovery_timeout) ||
5690 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5691 cur_params.dot11MeshHWMPactivePathTimeout) ||
5692 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5693 cur_params.dot11MeshHWMPpreqMinInterval) ||
5694 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5695 cur_params.dot11MeshHWMPperrMinInterval) ||
5696 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5697 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5698 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5699 cur_params.dot11MeshHWMPRootMode) ||
5700 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5701 cur_params.dot11MeshHWMPRannInterval) ||
5702 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5703 cur_params.dot11MeshGateAnnouncementProtocol) ||
5704 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5705 cur_params.dot11MeshForwarding) ||
5706 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5707 cur_params.rssi_threshold) ||
5708 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5709 cur_params.ht_opmode) ||
5710 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5711 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5712 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5713 cur_params.dot11MeshHWMProotInterval) ||
5714 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5715 cur_params.dot11MeshHWMPconfirmationInterval) ||
5716 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5717 cur_params.power_mode) ||
5718 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5719 cur_params.dot11MeshAwakeWindowDuration) ||
5720 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5721 cur_params.plink_timeout))
9360ffd1 5722 goto nla_put_failure;
93da9cc1 5723 nla_nest_end(msg, pinfoattr);
5724 genlmsg_end(msg, hdr);
4c476991 5725 return genlmsg_reply(msg, info);
93da9cc1 5726
3b85875a 5727 nla_put_failure:
93da9cc1 5728 genlmsg_cancel(msg, hdr);
efe1cf0c 5729 out:
d080e275 5730 nlmsg_free(msg);
4c476991 5731 return -ENOBUFS;
93da9cc1 5732}
5733
b54452b0 5734static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5735 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5736 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5737 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5738 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5739 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5740 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5741 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5742 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5743 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5744 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5745 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5746 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5747 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5748 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5749 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5750 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5751 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5752 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5753 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5754 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5755 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5756 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5757 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5758 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5759 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5760 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5761 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5762 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5763};
5764
c80d545d
JC		 5765static const struct nla_policy
5766 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5767 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5768 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5769 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5770 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5771 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5772 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5773 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5774 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5775 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5776};
5777
f151d9db
AB		 5778static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5779{
5780 u8 val = nla_get_u8(nla);
5781 if (val < min || val > max)
5782 return -EINVAL;
5783 *out = val;
5784 return 0;
5785}
5786
5787static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5788{
5789 u8 val = nla_get_u8(nla);
5790 if (val < min || val > max)
5791 return -EINVAL;
5792 *out = val;
5793 return 0;
5794}
5795
5796static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5797{
5798 u16 val = nla_get_u16(nla);
5799 if (val < min || val > max)
5800 return -EINVAL;
5801 *out = val;
5802 return 0;
5803}
5804
5805static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5806{
5807 u32 val = nla_get_u32(nla);
5808 if (val < min || val > max)
5809 return -EINVAL;
5810 *out = val;
5811 return 0;
5812}
5813
5814static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5815{
5816 s32 val = nla_get_s32(nla);
5817 if (val < min || val > max)
5818 return -EINVAL;
5819 *out = val;
5820 return 0;
5821}
5822
ff9a71af
JB		 5823static int nl80211_check_power_mode(const struct nlattr *nla,
5824 enum nl80211_mesh_power_mode min,
5825 enum nl80211_mesh_power_mode max,
5826 enum nl80211_mesh_power_mode *out)
5827{
5828 u32 val = nla_get_u32(nla);
5829 if (val < min || val > max)
5830 return -EINVAL;
5831 *out = val;
5832 return 0;
5833}
5834
24bdd9f4 5835static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5836 struct mesh_config *cfg,
5837 u32 *mask_out)
93da9cc1 5838{
93da9cc1 5839 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5840 u32 mask = 0;
9757235f 5841 u16 ht_opmode;
93da9cc1 5842
ea54fba2
MP		 5843#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5844do { \
5845 if (tb[attr]) { \
f151d9db 5846 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5847 return -EINVAL; \
ea54fba2
MP		 5848 mask |= (1 << (attr - 1)); \
5849 } \
5850} while (0)
bd90fdcc 5851
24bdd9f4 5852 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5853 return -EINVAL;
5854 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5855 info->attrs[NL80211_ATTR_MESH_CONFIG],
fceb6435 5856 nl80211_meshconf_params_policy, NULL))
93da9cc1 5857 return -EINVAL;
5858
93da9cc1 5859 /* This makes sure that there aren't more than 32 mesh config
5860 * parameters (otherwise our bitfield scheme would not work.) */
5861 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5862
5863 /* Fill in the params struct */
ea54fba2 5864 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5865 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5866 nl80211_check_u16);
ea54fba2 5867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5868 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5869 nl80211_check_u16);
ea54fba2 5870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5871 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5872 nl80211_check_u16);
ea54fba2 5873 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5874 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5875 nl80211_check_u16);
ea54fba2 5876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5877 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5878 nl80211_check_u8);
ea54fba2 5879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5880 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5881 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5882 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5883 nl80211_check_u8);
ea54fba2 5884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5885 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5886 nl80211_check_bool);
ea54fba2
MP		 5887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5888 1, 255, mask,
a4f606ea 5889 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5890 nl80211_check_u32);
ea54fba2 5891 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5892 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5893 nl80211_check_u8);
ea54fba2 5894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5895 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5896 nl80211_check_u32);
ea54fba2 5897 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5898 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5899 nl80211_check_u16);
ea54fba2
MP		 5900 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5901 1, 65535, mask,
a4f606ea 5902 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5903 nl80211_check_u32);
93da9cc1 5904 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5905 1, 65535, mask,
5906 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5907 nl80211_check_u16);
dca7e943 5908 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5909 1, 65535, mask,
5910 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5911 nl80211_check_u16);
93da9cc1 5912 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5913 dot11MeshHWMPnetDiameterTraversalTime,
5914 1, 65535, mask,
a4f606ea 5915 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5916 nl80211_check_u16);
ea54fba2
MP		 5917 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5918 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5919 nl80211_check_u8);
ea54fba2
MP		 5920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5921 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5922 nl80211_check_u16);
63c5723b 5923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5924 dot11MeshGateAnnouncementProtocol, 0, 1,
5925 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5926 nl80211_check_bool);
ea54fba2 5927 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5928 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5929 nl80211_check_bool);
83374fe9 5930 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5931 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5932 nl80211_check_s32);
9757235f
MH		 5933 /*
5934 * Check HT operation mode based on
5935 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5936 */
5937 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5938 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5939
5940 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5941 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5942 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5943 return -EINVAL;
5944
5945 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5946 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5947 return -EINVAL;
5948
5949 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5950 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5951 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5952 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5953 return -EINVAL;
5954 break;
5955 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5956 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5957 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5958 return -EINVAL;
5959 break;
5960 }
5961 cfg->ht_opmode = ht_opmode;
fd551bac 5962 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
9757235f 5963 }
ac1073a6 5964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5965 1, 65535, mask,
ac1073a6 5966 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5967 nl80211_check_u32);
ea54fba2 5968 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5969 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5970 nl80211_check_u16);
728b19e5 5971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5972 dot11MeshHWMPconfirmationInterval,
5973 1, 65535, mask,
728b19e5 5974 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5975 nl80211_check_u16);
3b1c5a53
MP		 5976 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5977 NL80211_MESH_POWER_ACTIVE,
5978 NL80211_MESH_POWER_MAX,
5979 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5980 nl80211_check_power_mode);
3b1c5a53
MP		 5981 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5982 0, 65535, mask,
f151d9db 5983 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5984 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5985 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5986 nl80211_check_u32);
bd90fdcc
JB		 5987 if (mask_out)
5988 *mask_out = mask;
c80d545d 5989
bd90fdcc
JB		 5990 return 0;
5991
5992#undef FILL_IN_MESH_PARAM_IF_SET
5993}
5994
c80d545d
JC		 5995static int nl80211_parse_mesh_setup(struct genl_info *info,
5996 struct mesh_setup *setup)
5997{
bb2798d4 5998 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5999 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6000
6001 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6002 return -EINVAL;
6003 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6004 info->attrs[NL80211_ATTR_MESH_SETUP],
fceb6435 6005 nl80211_mesh_setup_params_policy, NULL))
c80d545d
JC		 6006 return -EINVAL;
6007
d299a1f2
JC		 6008 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6009 setup->sync_method =
6010 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6011 IEEE80211_SYNC_METHOD_VENDOR :
6012 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6013
c80d545d
JC		 6014 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6015 setup->path_sel_proto =
6016 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6017 IEEE80211_PATH_PROTOCOL_VENDOR :
6018 IEEE80211_PATH_PROTOCOL_HWMP;
6019
6020 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6021 setup->path_metric =
6022 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6023 IEEE80211_PATH_METRIC_VENDOR :
6024 IEEE80211_PATH_METRIC_AIRTIME;
6025
581a8b0f 6026 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 6027 struct nlattr *ieattr =
581a8b0f 6028 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 6029 if (!is_valid_ie_attr(ieattr))
6030 return -EINVAL;
581a8b0f
JC		 6031 setup->ie = nla_data(ieattr);
6032 setup->ie_len = nla_len(ieattr);
c80d545d 6033 }
bb2798d4
TP		 6034 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6035 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6036 return -EINVAL;
6037 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 6038 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6039 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 6040 if (setup->is_secure)
6041 setup->user_mpm = true;
c80d545d 6042
6e16d90b
CT		 6043 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6044 if (!setup->user_mpm)
6045 return -EINVAL;
6046 setup->auth_id =
6047 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6048 }
6049
c80d545d
JC		 6050 return 0;
6051}
6052
24bdd9f4 6053static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 6054 struct genl_info *info)
bd90fdcc
JB		 6055{
6056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6057 struct net_device *dev = info->user_ptr[1];
29cbe68c 6058 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 6059 struct mesh_config cfg;
6060 u32 mask;
6061 int err;
6062
29cbe68c
JB		 6063 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6064 return -EOPNOTSUPP;
6065
24bdd9f4 6066 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 6067 return -EOPNOTSUPP;
6068
24bdd9f4 6069 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 6070 if (err)
6071 return err;
6072
29cbe68c
JB		 6073 wdev_lock(wdev);
6074 if (!wdev->mesh_id_len)
6075 err = -ENOLINK;
6076
6077 if (!err)
e35e4d28 6078 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 6079
6080 wdev_unlock(wdev);
6081
6082 return err;
93da9cc1 6083}
6084
ad30ca2c
AN		 6085static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6086 struct sk_buff *msg)
f130347c 6087{
f130347c
LR		 6088 struct nlattr *nl_reg_rules;
6089 unsigned int i;
f130347c 6090
458f4f9e
JB		 6091 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6092 (regdom->dfs_region &&
6093 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6094 goto nla_put_failure;
458f4f9e 6095
f130347c
LR		 6096 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6097 if (!nl_reg_rules)
ad30ca2c 6098 goto nla_put_failure;
f130347c 6099
458f4f9e 6100 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6101 struct nlattr *nl_reg_rule;
6102 const struct ieee80211_reg_rule *reg_rule;
6103 const struct ieee80211_freq_range *freq_range;
6104 const struct ieee80211_power_rule *power_rule;
97524820 6105 unsigned int max_bandwidth_khz;
f130347c 6106
458f4f9e 6107 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6108 freq_range = &reg_rule->freq_range;
6109 power_rule = &reg_rule->power_rule;
6110
6111 nl_reg_rule = nla_nest_start(msg, i);
6112 if (!nl_reg_rule)
ad30ca2c 6113 goto nla_put_failure;
f130347c 6114
97524820
JD		 6115 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6116 if (!max_bandwidth_khz)
6117 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6118 reg_rule);
6119
9360ffd1
DM		 6120 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6121 reg_rule->flags) ||
6122 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6123 freq_range->start_freq_khz) ||
6124 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6125 freq_range->end_freq_khz) ||
6126 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6127 max_bandwidth_khz) ||
9360ffd1
DM		 6128 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6129 power_rule->max_antenna_gain) ||
6130 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6131 power_rule->max_eirp) ||
6132 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6133 reg_rule->dfs_cac_ms))
ad30ca2c 6134 goto nla_put_failure;
f130347c
LR		 6135
6136 nla_nest_end(msg, nl_reg_rule);
6137 }
6138
6139 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6140 return 0;
6141
6142nla_put_failure:
6143 return -EMSGSIZE;
6144}
6145
6146static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6147{
6148 const struct ieee80211_regdomain *regdom = NULL;
6149 struct cfg80211_registered_device *rdev;
6150 struct wiphy *wiphy = NULL;
6151 struct sk_buff *msg;
6152 void *hdr;
6153
6154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6155 if (!msg)
6156 return -ENOBUFS;
6157
6158 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6159 NL80211_CMD_GET_REG);
6160 if (!hdr)
6161 goto put_failure;
6162
6163 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6164 bool self_managed;
6165
ad30ca2c
AN		 6166 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6167 if (IS_ERR(rdev)) {
6168 nlmsg_free(msg);
6169 return PTR_ERR(rdev);
6170 }
6171
6172 wiphy = &rdev->wiphy;
1bdd716c
AN		 6173 self_managed = wiphy->regulatory_flags &
6174 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6175 regdom = get_wiphy_regdom(wiphy);
6176
1bdd716c
AN		 6177 /* a self-managed-reg device must have a private regdom */
6178 if (WARN_ON(!regdom && self_managed)) {
6179 nlmsg_free(msg);
6180 return -EINVAL;
6181 }
6182
ad30ca2c
AN		 6183 if (regdom &&
6184 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6185 goto nla_put_failure;
6186 }
6187
6188 if (!wiphy && reg_last_request_cell_base() &&
6189 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6190 NL80211_USER_REG_HINT_CELL_BASE))
6191 goto nla_put_failure;
6192
6193 rcu_read_lock();
6194
6195 if (!regdom)
6196 regdom = rcu_dereference(cfg80211_regdomain);
6197
6198 if (nl80211_put_regdom(regdom, msg))
6199 goto nla_put_failure_rcu;
6200
6201 rcu_read_unlock();
f130347c
LR		 6202
6203 genlmsg_end(msg, hdr);
5fe231e8 6204 return genlmsg_reply(msg, info);
f130347c 6205
458f4f9e
JB		 6206nla_put_failure_rcu:
6207 rcu_read_unlock();
f130347c
LR		 6208nla_put_failure:
6209 genlmsg_cancel(msg, hdr);
efe1cf0c 6210put_failure:
d080e275 6211 nlmsg_free(msg);
5fe231e8 6212 return -EMSGSIZE;
f130347c
LR		 6213}
6214
ad30ca2c
AN		 6215static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6216 u32 seq, int flags, struct wiphy *wiphy,
6217 const struct ieee80211_regdomain *regdom)
6218{
6219 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6220 NL80211_CMD_GET_REG);
6221
6222 if (!hdr)
6223 return -1;
6224
6225 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6226
6227 if (nl80211_put_regdom(regdom, msg))
6228 goto nla_put_failure;
6229
6230 if (!wiphy && reg_last_request_cell_base() &&
6231 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6232 NL80211_USER_REG_HINT_CELL_BASE))
6233 goto nla_put_failure;
6234
6235 if (wiphy &&
6236 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6237 goto nla_put_failure;
6238
1bdd716c
AN		 6239 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6240 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6241 goto nla_put_failure;
6242
053c095a
JB		 6243 genlmsg_end(msg, hdr);
6244 return 0;
ad30ca2c
AN		 6245
6246nla_put_failure:
6247 genlmsg_cancel(msg, hdr);
6248 return -EMSGSIZE;
6249}
6250
6251static int nl80211_get_reg_dump(struct sk_buff *skb,
6252 struct netlink_callback *cb)
6253{
6254 const struct ieee80211_regdomain *regdom = NULL;
6255 struct cfg80211_registered_device *rdev;
6256 int err, reg_idx, start = cb->args[2];
6257
6258 rtnl_lock();
6259
6260 if (cfg80211_regdomain && start == 0) {
6261 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6262 NLM_F_MULTI, NULL,
6263 rtnl_dereference(cfg80211_regdomain));
6264 if (err < 0)
6265 goto out_err;
6266 }
6267
6268 /* the global regdom is idx 0 */
6269 reg_idx = 1;
6270 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6271 regdom = get_wiphy_regdom(&rdev->wiphy);
6272 if (!regdom)
6273 continue;
6274
6275 if (++reg_idx <= start)
6276 continue;
6277
6278 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6279 NLM_F_MULTI, &rdev->wiphy, regdom);
6280 if (err < 0) {
6281 reg_idx--;
6282 break;
6283 }
6284 }
6285
6286 cb->args[2] = reg_idx;
6287 err = skb->len;
6288out_err:
6289 rtnl_unlock();
6290 return err;
6291}
6292
b6863036
JB		 6293#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6294static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6295 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6296 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6297 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6298 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6299 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6300 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6301 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6302};
6303
6304static int parse_reg_rule(struct nlattr *tb[],
6305 struct ieee80211_reg_rule *reg_rule)
6306{
6307 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6308 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6309
6310 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6311 return -EINVAL;
6312 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6313 return -EINVAL;
6314 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6315 return -EINVAL;
6316 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6317 return -EINVAL;
6318 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6319 return -EINVAL;
6320
6321 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6322
6323 freq_range->start_freq_khz =
6324 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6325 freq_range->end_freq_khz =
6326 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6327 freq_range->max_bandwidth_khz =
6328 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6329
6330 power_rule->max_eirp =
6331 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6332
6333 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6334 power_rule->max_antenna_gain =
6335 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6336
6337 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6338 reg_rule->dfs_cac_ms =
6339 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6340
6341 return 0;
6342}
6343
b2e1b302
LR		 6344static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6345{
6346 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6347 struct nlattr *nl_reg_rule;
ea372c54
JB		 6348 char *alpha2;
6349 int rem_reg_rules, r;
b2e1b302 6350 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6351 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6352 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6353
6354 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6355 return -EINVAL;
6356
6357 if (!info->attrs[NL80211_ATTR_REG_RULES])
6358 return -EINVAL;
6359
6360 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6361
8b60b078
LR		 6362 if (info->attrs[NL80211_ATTR_DFS_REGION])
6363 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6364
b2e1b302 6365 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6366 rem_reg_rules) {
b2e1b302
LR		 6367 num_rules++;
6368 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6369 return -EINVAL;
b2e1b302
LR		 6370 }
6371
e438768f
LR		 6372 if (!reg_is_valid_request(alpha2))
6373 return -EINVAL;
6374
b2e1b302 6375 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6376 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6377
6378 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6379 if (!rd)
6380 return -ENOMEM;
b2e1b302
LR		 6381
6382 rd->n_reg_rules = num_rules;
6383 rd->alpha2[0] = alpha2[0];
6384 rd->alpha2[1] = alpha2[1];
6385
8b60b078
LR		 6386 /*
6387 * Disable DFS master mode if the DFS region was
6388 * not supported or known on this kernel.
6389 */
6390 if (reg_supported_dfs_region(dfs_region))
6391 rd->dfs_region = dfs_region;
6392
b2e1b302 6393 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6394 rem_reg_rules) {
bfe2c7b1 6395 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
fceb6435 6396 nl_reg_rule, reg_rule_policy, NULL);
ae811e21
JB		 6397 if (r)
6398 goto bad_reg;
b2e1b302
LR		 6399 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6400 if (r)
6401 goto bad_reg;
6402
6403 rule_idx++;
6404
d0e18f83
LR		 6405 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6406 r = -EINVAL;
b2e1b302 6407 goto bad_reg;
d0e18f83 6408 }
b2e1b302
LR		 6409 }
6410
06627990
JB		 6411 /* set_regdom takes ownership of rd */
6412 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6413 bad_reg:
b2e1b302 6414 kfree(rd);
d0e18f83 6415 return r;
b2e1b302 6416}
b6863036 6417#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6418
83f5e2cf
JB		 6419static int validate_scan_freqs(struct nlattr *freqs)
6420{
6421 struct nlattr *attr1, *attr2;
6422 int n_channels = 0, tmp1, tmp2;
6423
6424 nla_for_each_nested(attr1, freqs, tmp1) {
6425 n_channels++;
6426 /*
6427 * Some hardware has a limited channel list for
6428 * scanning, and it is pretty much nonsensical
6429 * to scan for a channel twice, so disallow that
6430 * and don't require drivers to check that the
6431 * channel list they get isn't longer than what
6432 * they can scan, as long as they can scan all
6433 * the channels they registered at once.
6434 */
6435 nla_for_each_nested(attr2, freqs, tmp2)
6436 if (attr1 != attr2 &&
6437 nla_get_u32(attr1) == nla_get_u32(attr2))
6438 return 0;
6439 }
6440
6441 return n_channels;
6442}
6443
57fbcce3 6444static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6445{
57fbcce3 6446 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6447}
6448
6449static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6450 struct cfg80211_bss_selection *bss_select)
6451{
6452 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6453 struct nlattr *nest;
6454 int err;
6455 bool found = false;
6456 int i;
6457
6458 /* only process one nested attribute */
6459 nest = nla_data(nla);
6460 if (!nla_ok(nest, nla_len(nest)))
6461 return -EINVAL;
6462
bfe2c7b1 6463 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
fceb6435 6464 nl80211_bss_select_policy, NULL);
38de03d2
AS		 6465 if (err)
6466 return err;
6467
6468 /* only one attribute may be given */
6469 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6470 if (attr[i]) {
6471 if (found)
6472 return -EINVAL;
6473 found = true;
6474 }
6475 }
6476
6477 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6478
6479 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6480 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6481
6482 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6483 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6484 bss_select->param.band_pref =
6485 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6486 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6487 return -EINVAL;
6488 }
6489
6490 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6491 struct nl80211_bss_select_rssi_adjust *adj_param;
6492
6493 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6494 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6495 bss_select->param.adjust.band = adj_param->band;
6496 bss_select->param.adjust.delta = adj_param->delta;
6497 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6498 return -EINVAL;
6499 }
6500
6501 /* user-space did not provide behaviour attribute */
6502 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6503 return -EINVAL;
6504
6505 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6506 return -EINVAL;
6507
6508 return 0;
6509}
6510
ad2b26ab
JB		 6511static int nl80211_parse_random_mac(struct nlattr **attrs,
6512 u8 *mac_addr, u8 *mac_addr_mask)
6513{
6514 int i;
6515
6516 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6517 eth_zero_addr(mac_addr);
6518 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6519 mac_addr[0] = 0x2;
6520 mac_addr_mask[0] = 0x3;
6521
6522 return 0;
6523 }
6524
6525 /* need both or none */
6526 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6527 return -EINVAL;
6528
6529 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6530 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6531
6532 /* don't allow or configure an mcast address */
6533 if (!is_multicast_ether_addr(mac_addr_mask) ||
6534 is_multicast_ether_addr(mac_addr))
6535 return -EINVAL;
6536
6537 /*
6538 * allow users to pass a MAC address that has bits set outside
6539 * of the mask, but don't bother drivers with having to deal
6540 * with such bits
6541 */
6542 for (i = 0; i < ETH_ALEN; i++)
6543 mac_addr[i] &= mac_addr_mask[i];
6544
6545 return 0;
6546}
6547
2a519311
JB		 6548static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6549{
4c476991 6550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6551 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6552 struct cfg80211_scan_request *request;
2a519311
JB		 6553 struct nlattr *attr;
6554 struct wiphy *wiphy;
83f5e2cf 6555 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6556 size_t ie_len;
2a519311 6557
f4a11bb0
JB		 6558 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6559 return -EINVAL;
6560
79c97e97 6561 wiphy = &rdev->wiphy;
2a519311 6562
cb3b7d87
AB		 6563 if (wdev->iftype == NL80211_IFTYPE_NAN)
6564 return -EOPNOTSUPP;
6565
4c476991
JB		 6566 if (!rdev->ops->scan)
6567 return -EOPNOTSUPP;
2a519311 6568
f9d15d16 6569 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6570 err = -EBUSY;
6571 goto unlock;
6572 }
2a519311
JB		 6573
6574 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6575 n_channels = validate_scan_freqs(
6576 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6577 if (!n_channels) {
6578 err = -EINVAL;
6579 goto unlock;
6580 }
2a519311 6581 } else {
bdfbec2d 6582 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6583 }
6584
6585 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6586 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6587 n_ssids++;
6588
f9f47529
JB		 6589 if (n_ssids > wiphy->max_scan_ssids) {
6590 err = -EINVAL;
6591 goto unlock;
6592 }
2a519311 6593
70692ad2
JM		 6594 if (info->attrs[NL80211_ATTR_IE])
6595 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6596 else
6597 ie_len = 0;
6598
f9f47529
JB		 6599 if (ie_len > wiphy->max_scan_ie_len) {
6600 err = -EINVAL;
6601 goto unlock;
6602 }
18a83659 6603
2a519311 6604 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6605 + sizeof(*request->ssids) * n_ssids
6606 + sizeof(*request->channels) * n_channels
70692ad2 6607 + ie_len, GFP_KERNEL);
f9f47529
JB		 6608 if (!request) {
6609 err = -ENOMEM;
6610 goto unlock;
6611 }
2a519311 6612
2a519311 6613 if (n_ssids)
5ba63533 6614 request->ssids = (void *)&request->channels[n_channels];
2a519311 6615 request->n_ssids = n_ssids;
70692ad2 6616 if (ie_len) {
13874e4b 6617 if (n_ssids)
70692ad2
JM		 6618 request->ie = (void *)(request->ssids + n_ssids);
6619 else
6620 request->ie = (void *)(request->channels + n_channels);
6621 }
2a519311 6622
584991dc 6623 i = 0;
2a519311
JB		 6624 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6625 /* user specified, bail out if channel not found */
2a519311 6626 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6627 struct ieee80211_channel *chan;
6628
6629 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6630
6631 if (!chan) {
2a519311
JB		 6632 err = -EINVAL;
6633 goto out_free;
6634 }
584991dc
JB		 6635
6636 /* ignore disabled channels */
6637 if (chan->flags & IEEE80211_CHAN_DISABLED)
6638 continue;
6639
6640 request->channels[i] = chan;
2a519311
JB		 6641 i++;
6642 }
6643 } else {
57fbcce3 6644 enum nl80211_band band;
34850ab2 6645
2a519311 6646 /* all channels */
57fbcce3 6647 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6648 int j;
7a087e74 6649
2a519311
JB		 6650 if (!wiphy->bands[band])
6651 continue;
6652 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6653 struct ieee80211_channel *chan;
6654
6655 chan = &wiphy->bands[band]->channels[j];
6656
6657 if (chan->flags & IEEE80211_CHAN_DISABLED)
6658 continue;
6659
6660 request->channels[i] = chan;
2a519311
JB		 6661 i++;
6662 }
6663 }
6664 }
6665
584991dc
JB		 6666 if (!i) {
6667 err = -EINVAL;
6668 goto out_free;
6669 }
6670
6671 request->n_channels = i;
6672
2a519311 6673 i = 0;
13874e4b 6674 if (n_ssids) {
2a519311 6675 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6676 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6677 err = -EINVAL;
6678 goto out_free;
6679 }
57a27e1d 6680 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6681 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6682 i++;
6683 }
6684 }
6685
70692ad2
JM		 6686 if (info->attrs[NL80211_ATTR_IE]) {
6687 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6688 memcpy((void *)request->ie,
6689 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6690 request->ie_len);
6691 }
6692
57fbcce3 6693 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6694 if (wiphy->bands[i])
6695 request->rates[i] =
6696 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6697
6698 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6699 nla_for_each_nested(attr,
6700 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6701 tmp) {
57fbcce3 6702 enum nl80211_band band = nla_type(attr);
34850ab2 6703
57fbcce3 6704 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6705 err = -EINVAL;
6706 goto out_free;
6707 }
1b09cd82
FF		 6708
6709 if (!wiphy->bands[band])
6710 continue;
6711
34850ab2
JB		 6712 err = ieee80211_get_ratemask(wiphy->bands[band],
6713 nla_data(attr),
6714 nla_len(attr),
6715 &request->rates[band]);
6716 if (err)
6717 goto out_free;
6718 }
6719 }
6720
1d76250b
AS		 6721 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6722 if (!wiphy_ext_feature_isset(wiphy,
6723 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6724 err = -EOPNOTSUPP;
6725 goto out_free;
6726 }
6727
6728 request->duration =
6729 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6730 request->duration_mandatory =
6731 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6732 }
6733
46856bbf 6734 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6735 request->flags = nla_get_u32(
6736 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6737 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6738 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6739 err = -EOPNOTSUPP;
6740 goto out_free;
6741 }
ad2b26ab
JB		 6742
6743 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6744 if (!(wiphy->features &
6745 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6746 err = -EOPNOTSUPP;
6747 goto out_free;
6748 }
6749
6750 if (wdev->current_bss) {
6751 err = -EOPNOTSUPP;
6752 goto out_free;
6753 }
6754
6755 err = nl80211_parse_random_mac(info->attrs,
6756 request->mac_addr,
6757 request->mac_addr_mask);
6758 if (err)
6759 goto out_free;
6760 }
46856bbf 6761 }
ed473771 6762
e9f935e3
RM		 6763 request->no_cck =
6764 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6765
2fa436b3
VK		 6766 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6767 * BSSID to scan for. This was problematic because that same attribute
6768 * was already used for another purpose (local random MAC address). The
6769 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6770 * compatibility with older userspace components, also use the
6771 * NL80211_ATTR_MAC value here if it can be determined to be used for
6772 * the specific BSSID use case instead of the random MAC address
6773 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6774 */
6775 if (info->attrs[NL80211_ATTR_BSSID])
6776 memcpy(request->bssid,
6777 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6778 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6779 info->attrs[NL80211_ATTR_MAC])
818965d3
JM		 6780 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6781 ETH_ALEN);
6782 else
6783 eth_broadcast_addr(request->bssid);
6784
fd014284 6785 request->wdev = wdev;
79c97e97 6786 request->wiphy = &rdev->wiphy;
15d6030b 6787 request->scan_start = jiffies;
2a519311 6788
79c97e97 6789 rdev->scan_req = request;
e35e4d28 6790 err = rdev_scan(rdev, request);
2a519311 6791
463d0183 6792 if (!err) {
fd014284
JB		 6793 nl80211_send_scan_start(rdev, wdev);
6794 if (wdev->netdev)
6795 dev_hold(wdev->netdev);
4c476991 6796 } else {
2a519311 6797 out_free:
79c97e97 6798 rdev->scan_req = NULL;
2a519311
JB		 6799 kfree(request);
6800 }
3b85875a 6801
f9f47529 6802 unlock:
2a519311
JB		 6803 return err;
6804}
6805
91d3ab46
VK		 6806static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6807{
6808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6809 struct wireless_dev *wdev = info->user_ptr[1];
6810
6811 if (!rdev->ops->abort_scan)
6812 return -EOPNOTSUPP;
6813
6814 if (rdev->scan_msg)
6815 return 0;
6816
6817 if (!rdev->scan_req)
6818 return -ENOENT;
6819
6820 rdev_abort_scan(rdev, wdev);
6821 return 0;
6822}
6823
3b06d277
AS		 6824static int
6825nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6826 struct cfg80211_sched_scan_request *request,
6827 struct nlattr **attrs)
6828{
6829 int tmp, err, i = 0;
6830 struct nlattr *attr;
6831
6832 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6833 u32 interval;
6834
6835 /*
6836 * If scan plans are not specified,
5a88de53 6837 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
3b06d277
AS		 6838 * case one scan plan will be set with the specified scan
6839 * interval and infinite number of iterations.
6840 */
3b06d277
AS		 6841 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6842 if (!interval)
6843 return -EINVAL;
6844
6845 request->scan_plans[0].interval =
6846 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6847 if (!request->scan_plans[0].interval)
6848 return -EINVAL;
6849
6850 if (request->scan_plans[0].interval >
6851 wiphy->max_sched_scan_plan_interval)
6852 request->scan_plans[0].interval =
6853 wiphy->max_sched_scan_plan_interval;
6854
6855 return 0;
6856 }
6857
6858 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6859 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6860
6861 if (WARN_ON(i >= n_plans))
6862 return -EINVAL;
6863
bfe2c7b1 6864 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
fceb6435 6865 attr, nl80211_plan_policy, NULL);
3b06d277
AS		 6866 if (err)
6867 return err;
6868
6869 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6870 return -EINVAL;
6871
6872 request->scan_plans[i].interval =
6873 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6874 if (!request->scan_plans[i].interval ||
6875 request->scan_plans[i].interval >
6876 wiphy->max_sched_scan_plan_interval)
6877 return -EINVAL;
6878
6879 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6880 request->scan_plans[i].iterations =
6881 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6882 if (!request->scan_plans[i].iterations ||
6883 (request->scan_plans[i].iterations >
6884 wiphy->max_sched_scan_plan_iterations))
6885 return -EINVAL;
6886 } else if (i < n_plans - 1) {
6887 /*
6888 * All scan plans but the last one must specify
6889 * a finite number of iterations
6890 */
6891 return -EINVAL;
6892 }
6893
6894 i++;
6895 }
6896
6897 /*
6898 * The last scan plan must not specify the number of
6899 * iterations, it is supposed to run infinitely
6900 */
6901 if (request->scan_plans[n_plans - 1].iterations)
6902 return -EINVAL;
6903
6904 return 0;
6905}
6906
256da02d 6907static struct cfg80211_sched_scan_request *
ad2b26ab 6908nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
aad1e812 6909 struct nlattr **attrs, int max_match_sets)
807f8a8c
LC		 6910{
6911 struct cfg80211_sched_scan_request *request;
807f8a8c 6912 struct nlattr *attr;
3b06d277 6913 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6914 enum nl80211_band band;
807f8a8c 6915 size_t ie_len;
a1f1c21c 6916 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6917 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6918
256da02d
LC		 6919 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6920 return ERR_PTR(-EINVAL);
807f8a8c 6921
256da02d 6922 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6923 n_channels = validate_scan_freqs(
256da02d 6924 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6925 if (!n_channels)
256da02d 6926 return ERR_PTR(-EINVAL);
807f8a8c 6927 } else {
bdfbec2d 6928 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6929 }
6930
256da02d
LC		 6931 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6932 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6933 tmp)
6934 n_ssids++;
6935
93b6aa69 6936 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6937 return ERR_PTR(-EINVAL);
807f8a8c 6938
ea73cbce
JB		 6939 /*
6940 * First, count the number of 'real' matchsets. Due to an issue with
6941 * the old implementation, matchsets containing only the RSSI attribute
6942 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6943 * RSSI for all matchsets, rather than their own matchset for reporting
6944 * all APs with a strong RSSI. This is needed to be compatible with
6945 * older userspace that treated a matchset with only the RSSI as the
6946 * global RSSI for all other matchsets - if there are other matchsets.
6947 */
256da02d 6948 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6949 nla_for_each_nested(attr,
256da02d 6950 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6951 tmp) {
6952 struct nlattr *rssi;
6953
bfe2c7b1
JB		 6954 err = nla_parse_nested(tb,
6955 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 6956 attr, nl80211_match_policy,
6957 NULL);
ea73cbce 6958 if (err)
256da02d 6959 return ERR_PTR(err);
ea73cbce
JB		 6960 /* add other standalone attributes here */
6961 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6962 n_match_sets++;
6963 continue;
6964 }
6965 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6966 if (rssi)
6967 default_match_rssi = nla_get_s32(rssi);
6968 }
6969 }
6970
6971 /* However, if there's no other matchset, add the RSSI one */
6972 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6973 n_match_sets = 1;
a1f1c21c 6974
aad1e812 6975 if (n_match_sets > max_match_sets)
256da02d 6976 return ERR_PTR(-EINVAL);
a1f1c21c 6977
256da02d
LC		 6978 if (attrs[NL80211_ATTR_IE])
6979 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6980 else
6981 ie_len = 0;
6982
5a865bad 6983 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6984 return ERR_PTR(-EINVAL);
c10841ca 6985
3b06d277
AS		 6986 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6987 /*
6988 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6989 * each scan plan already specifies its own interval
6990 */
6991 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6992 return ERR_PTR(-EINVAL);
6993
6994 nla_for_each_nested(attr,
6995 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6996 n_plans++;
6997 } else {
6998 /*
6999 * The scan interval attribute is kept for backward
7000 * compatibility. If no scan plans are specified and sched scan
7001 * interval is specified, one scan plan will be set with this
7002 * scan interval and infinite number of iterations.
7003 */
7004 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7005 return ERR_PTR(-EINVAL);
7006
7007 n_plans = 1;
7008 }
7009
7010 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7011 return ERR_PTR(-EINVAL);
7012
bf95ecdb 7013 if (!wiphy_ext_feature_isset(
7014 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7015 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7016 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7017 return ERR_PTR(-EINVAL);
7018
807f8a8c 7019 request = kzalloc(sizeof(*request)
a2cd43c5 7020 + sizeof(*request->ssids) * n_ssids
a1f1c21c 7021 + sizeof(*request->match_sets) * n_match_sets
3b06d277 7022 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 7023 + sizeof(*request->channels) * n_channels
807f8a8c 7024 + ie_len, GFP_KERNEL);
256da02d
LC		 7025 if (!request)
7026 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 7027
7028 if (n_ssids)
7029 request->ssids = (void *)&request->channels[n_channels];
7030 request->n_ssids = n_ssids;
7031 if (ie_len) {
13874e4b 7032 if (n_ssids)
807f8a8c
LC		 7033 request->ie = (void *)(request->ssids + n_ssids);
7034 else
7035 request->ie = (void *)(request->channels + n_channels);
7036 }
7037
a1f1c21c
LC		 7038 if (n_match_sets) {
7039 if (request->ie)
7040 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 7041 else if (n_ssids)
a1f1c21c
LC		 7042 request->match_sets =
7043 (void *)(request->ssids + n_ssids);
7044 else
7045 request->match_sets =
7046 (void *)(request->channels + n_channels);
7047 }
7048 request->n_match_sets = n_match_sets;
7049
3b06d277
AS		 7050 if (n_match_sets)
7051 request->scan_plans = (void *)(request->match_sets +
7052 n_match_sets);
7053 else if (request->ie)
7054 request->scan_plans = (void *)(request->ie + ie_len);
7055 else if (n_ssids)
7056 request->scan_plans = (void *)(request->ssids + n_ssids);
7057 else
7058 request->scan_plans = (void *)(request->channels + n_channels);
7059
7060 request->n_scan_plans = n_plans;
7061
807f8a8c 7062 i = 0;
256da02d 7063 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 7064 /* user specified, bail out if channel not found */
7065 nla_for_each_nested(attr,
256da02d 7066 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 7067 tmp) {
7068 struct ieee80211_channel *chan;
7069
7070 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7071
7072 if (!chan) {
7073 err = -EINVAL;
7074 goto out_free;
7075 }
7076
7077 /* ignore disabled channels */
7078 if (chan->flags & IEEE80211_CHAN_DISABLED)
7079 continue;
7080
7081 request->channels[i] = chan;
7082 i++;
7083 }
7084 } else {
7085 /* all channels */
57fbcce3 7086 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 7087 int j;
7a087e74 7088
807f8a8c
LC		 7089 if (!wiphy->bands[band])
7090 continue;
7091 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7092 struct ieee80211_channel *chan;
7093
7094 chan = &wiphy->bands[band]->channels[j];
7095
7096 if (chan->flags & IEEE80211_CHAN_DISABLED)
7097 continue;
7098
7099 request->channels[i] = chan;
7100 i++;
7101 }
7102 }
7103 }
7104
7105 if (!i) {
7106 err = -EINVAL;
7107 goto out_free;
7108 }
7109
7110 request->n_channels = i;
7111
7112 i = 0;
13874e4b 7113 if (n_ssids) {
256da02d 7114 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7115 tmp) {
57a27e1d 7116 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7117 err = -EINVAL;
7118 goto out_free;
7119 }
57a27e1d 7120 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7121 memcpy(request->ssids[i].ssid, nla_data(attr),
7122 nla_len(attr));
807f8a8c
LC		 7123 i++;
7124 }
7125 }
7126
a1f1c21c 7127 i = 0;
256da02d 7128 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7129 nla_for_each_nested(attr,
256da02d 7130 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7131 tmp) {
88e920b4 7132 struct nlattr *ssid, *rssi;
a1f1c21c 7133
bfe2c7b1
JB		 7134 err = nla_parse_nested(tb,
7135 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7136 attr, nl80211_match_policy,
7137 NULL);
ae811e21
JB		 7138 if (err)
7139 goto out_free;
4a4ab0d7 7140 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 7141 if (ssid) {
ea73cbce
JB		 7142 if (WARN_ON(i >= n_match_sets)) {
7143 /* this indicates a programming error,
7144 * the loop above should have verified
7145 * things properly
7146 */
7147 err = -EINVAL;
7148 goto out_free;
7149 }
7150
a1f1c21c
LC		 7151 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7152 err = -EINVAL;
7153 goto out_free;
7154 }
7155 memcpy(request->match_sets[i].ssid.ssid,
7156 nla_data(ssid), nla_len(ssid));
7157 request->match_sets[i].ssid.ssid_len =
7158 nla_len(ssid);
56ab364f 7159 /* special attribute - old implementation w/a */
ea73cbce
JB		 7160 request->match_sets[i].rssi_thold =
7161 default_match_rssi;
7162 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7163 if (rssi)
7164 request->match_sets[i].rssi_thold =
7165 nla_get_s32(rssi);
a1f1c21c
LC		 7166 }
7167 i++;
7168 }
ea73cbce
JB		 7169
7170 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7171 if (i == 0 && n_match_sets)
ea73cbce
JB		 7172 request->match_sets[0].rssi_thold = default_match_rssi;
7173
7174 request->min_rssi_thold = INT_MAX;
7175 for (i = 0; i < n_match_sets; i++)
7176 request->min_rssi_thold =
7177 min(request->match_sets[i].rssi_thold,
7178 request->min_rssi_thold);
7179 } else {
7180 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7181 }
7182
9900e484
JB		 7183 if (ie_len) {
7184 request->ie_len = ie_len;
807f8a8c 7185 memcpy((void *)request->ie,
256da02d 7186 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7187 request->ie_len);
7188 }
7189
256da02d 7190 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 7191 request->flags = nla_get_u32(
256da02d 7192 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 7193 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7194 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 7195 err = -EOPNOTSUPP;
7196 goto out_free;
7197 }
ad2b26ab
JB		 7198
7199 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7200 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7201
7202 if (!wdev) /* must be net-detect */
7203 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7204
7205 if (!(wiphy->features & flg)) {
7206 err = -EOPNOTSUPP;
7207 goto out_free;
7208 }
7209
7210 if (wdev && wdev->current_bss) {
7211 err = -EOPNOTSUPP;
7212 goto out_free;
7213 }
7214
7215 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7216 request->mac_addr_mask);
7217 if (err)
7218 goto out_free;
7219 }
46856bbf 7220 }
ed473771 7221
9c748934
LC		 7222 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7223 request->delay =
7224 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7225
bf95ecdb 7226 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7227 request->relative_rssi = nla_get_s8(
7228 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7229 request->relative_rssi_set = true;
7230 }
7231
7232 if (request->relative_rssi_set &&
7233 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7234 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7235
7236 rssi_adjust = nla_data(
7237 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7238 request->rssi_adjust.band = rssi_adjust->band;
7239 request->rssi_adjust.delta = rssi_adjust->delta;
7240 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7241 err = -EINVAL;
7242 goto out_free;
7243 }
7244 }
7245
3b06d277
AS		 7246 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7247 if (err)
7248 goto out_free;
7249
15d6030b 7250 request->scan_start = jiffies;
807f8a8c 7251
256da02d 7252 return request;
807f8a8c
LC		 7253
7254out_free:
7255 kfree(request);
256da02d
LC		 7256 return ERR_PTR(err);
7257}
7258
7259static int nl80211_start_sched_scan(struct sk_buff *skb,
7260 struct genl_info *info)
7261{
7262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7263 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7264 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7265 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 7266 int err;
7267
7268 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7269 !rdev->ops->sched_scan_start)
7270 return -EOPNOTSUPP;
7271
7272 if (rdev->sched_scan_req)
7273 return -EINPROGRESS;
7274
31a60ed1 7275 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
aad1e812
AVS		 7276 info->attrs,
7277 rdev->wiphy.max_match_sets);
31a60ed1
JR		 7278
7279 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7280 if (err)
7281 goto out_err;
7282
31a60ed1 7283 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7284 if (err)
7285 goto out_free;
7286
31a60ed1
JR		 7287 sched_scan_req->dev = dev;
7288 sched_scan_req->wiphy = &rdev->wiphy;
7289
93a1e86c
JR		 7290 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7291 sched_scan_req->owner_nlportid = info->snd_portid;
7292
31a60ed1 7293 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 7294
7295 nl80211_send_sched_scan(rdev, dev,
7296 NL80211_CMD_START_SCHED_SCAN);
7297 return 0;
7298
7299out_free:
31a60ed1 7300 kfree(sched_scan_req);
256da02d 7301out_err:
807f8a8c
LC		 7302 return err;
7303}
7304
7305static int nl80211_stop_sched_scan(struct sk_buff *skb,
7306 struct genl_info *info)
7307{
7308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7309
7310 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7311 !rdev->ops->sched_scan_stop)
7312 return -EOPNOTSUPP;
7313
5fe231e8 7314 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 7315}
7316
04f39047
SW		 7317static int nl80211_start_radar_detection(struct sk_buff *skb,
7318 struct genl_info *info)
7319{
7320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7321 struct net_device *dev = info->user_ptr[1];
7322 struct wireless_dev *wdev = dev->ieee80211_ptr;
7323 struct cfg80211_chan_def chandef;
55f7435c 7324 enum nl80211_dfs_regions dfs_region;
31559f35 7325 unsigned int cac_time_ms;
04f39047
SW		 7326 int err;
7327
55f7435c
LR		 7328 dfs_region = reg_get_dfs_region(wdev->wiphy);
7329 if (dfs_region == NL80211_DFS_UNSET)
7330 return -EINVAL;
7331
04f39047
SW		 7332 err = nl80211_parse_chandef(rdev, info, &chandef);
7333 if (err)
7334 return err;
7335
ff311bc1
SW		 7336 if (netif_carrier_ok(dev))
7337 return -EBUSY;
7338
04f39047
SW		 7339 if (wdev->cac_started)
7340 return -EBUSY;
7341
2beb6dab 7342 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7343 wdev->iftype);
04f39047
SW		 7344 if (err < 0)
7345 return err;
7346
7347 if (err == 0)
7348 return -EINVAL;
7349
fe7c3a1f 7350 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7351 return -EINVAL;
7352
7353 if (!rdev->ops->start_radar_detection)
7354 return -EOPNOTSUPP;
7355
31559f35
JD		 7356 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7357 if (WARN_ON(!cac_time_ms))
7358 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7359
a1056b1b 7360 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7361 if (!err) {
9e0e2961 7362 wdev->chandef = chandef;
04f39047
SW		 7363 wdev->cac_started = true;
7364 wdev->cac_start_time = jiffies;
31559f35 7365 wdev->cac_time_ms = cac_time_ms;
04f39047 7366 }
04f39047
SW		 7367 return err;
7368}
7369
16ef1fe2
SW		 7370static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7371{
7372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7373 struct net_device *dev = info->user_ptr[1];
7374 struct wireless_dev *wdev = dev->ieee80211_ptr;
7375 struct cfg80211_csa_settings params;
7376 /* csa_attrs is defined static to avoid waste of stack size - this
7377 * function is called under RTNL lock, so this should not be a problem.
7378 */
7379 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7380 int err;
ee4bc9e7 7381 bool need_new_beacon = false;
9a774c78 7382 int len, i;
252e07ca 7383 u32 cs_count;
16ef1fe2
SW		 7384
7385 if (!rdev->ops->channel_switch ||
7386 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7387 return -EOPNOTSUPP;
7388
ee4bc9e7
SW		 7389 switch (dev->ieee80211_ptr->iftype) {
7390 case NL80211_IFTYPE_AP:
7391 case NL80211_IFTYPE_P2P_GO:
7392 need_new_beacon = true;
7393
7394 /* useless if AP is not running */
7395 if (!wdev->beacon_interval)
1ff79dfa 7396 return -ENOTCONN;
ee4bc9e7
SW		 7397 break;
7398 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7399 if (!wdev->ssid_len)
7400 return -ENOTCONN;
7401 break;
c6da674a 7402 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7403 if (!wdev->mesh_id_len)
7404 return -ENOTCONN;
ee4bc9e7
SW		 7405 break;
7406 default:
16ef1fe2 7407 return -EOPNOTSUPP;
ee4bc9e7 7408 }
16ef1fe2
SW		 7409
7410 memset(&params, 0, sizeof(params));
7411
7412 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7413 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7414 return -EINVAL;
7415
7416 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7417 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7418 return -EINVAL;
7419
252e07ca
LC		 7420 /* Even though the attribute is u32, the specification says
7421 * u8, so let's make sure we don't overflow.
7422 */
7423 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7424 if (cs_count > 255)
7425 return -EINVAL;
7426
7427 params.count = cs_count;
16ef1fe2 7428
ee4bc9e7
SW		 7429 if (!need_new_beacon)
7430 goto skip_beacons;
7431
16ef1fe2
SW		 7432 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7433 if (err)
7434 return err;
7435
7436 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7437 info->attrs[NL80211_ATTR_CSA_IES],
fceb6435 7438 nl80211_policy, NULL);
16ef1fe2
SW		 7439 if (err)
7440 return err;
7441
7442 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7443 if (err)
7444 return err;
7445
7446 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7447 return -EINVAL;
7448
9a774c78
AO		 7449 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7450 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7451 return -EINVAL;
7452
9a774c78
AO		 7453 params.n_counter_offsets_beacon = len / sizeof(u16);
7454 if (rdev->wiphy.max_num_csa_counters &&
7455 (params.n_counter_offsets_beacon >
7456 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7457 return -EINVAL;
7458
9a774c78
AO		 7459 params.counter_offsets_beacon =
7460 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7461
7462 /* sanity checks - counters should fit and be the same */
7463 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7464 u16 offset = params.counter_offsets_beacon[i];
7465
7466 if (offset >= params.beacon_csa.tail_len)
7467 return -EINVAL;
7468
7469 if (params.beacon_csa.tail[offset] != params.count)
7470 return -EINVAL;
7471 }
7472
16ef1fe2 7473 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7474 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7475 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7476 return -EINVAL;
7477
9a774c78
AO		 7478 params.n_counter_offsets_presp = len / sizeof(u16);
7479 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7480 (params.n_counter_offsets_presp >
9a774c78 7481 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7482 return -EINVAL;
9a774c78
AO		 7483
7484 params.counter_offsets_presp =
7485 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7486
7487 /* sanity checks - counters should fit and be the same */
7488 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7489 u16 offset = params.counter_offsets_presp[i];
7490
7491 if (offset >= params.beacon_csa.probe_resp_len)
7492 return -EINVAL;
7493
7494 if (params.beacon_csa.probe_resp[offset] !=
7495 params.count)
7496 return -EINVAL;
7497 }
16ef1fe2
SW		 7498 }
7499
ee4bc9e7 7500skip_beacons:
16ef1fe2
SW		 7501 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7502 if (err)
7503 return err;
7504
923b352f
AN		 7505 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7506 wdev->iftype))
16ef1fe2
SW		 7507 return -EINVAL;
7508
2beb6dab
LC		 7509 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7510 &params.chandef,
7511 wdev->iftype);
7512 if (err < 0)
7513 return err;
7514
dcc6c2f5 7515 if (err > 0)
2beb6dab 7516 params.radar_required = true;
16ef1fe2 7517
16ef1fe2
SW		 7518 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7519 params.block_tx = true;
7520
c56589ed
SW		 7521 wdev_lock(wdev);
7522 err = rdev_channel_switch(rdev, dev, &params);
7523 wdev_unlock(wdev);
7524
7525 return err;
16ef1fe2
SW		 7526}
7527
9720bb3a
JB		 7528static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7529 u32 seq, int flags,
2a519311 7530 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7531 struct wireless_dev *wdev,
7532 struct cfg80211_internal_bss *intbss)
2a519311 7533{
48ab905d 7534 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7535 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7536 void *hdr;
7537 struct nlattr *bss;
48ab905d
JB		 7538
7539 ASSERT_WDEV_LOCK(wdev);
2a519311 7540
15e47304 7541 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7542 NL80211_CMD_NEW_SCAN_RESULTS);
7543 if (!hdr)
7544 return -1;
7545
9720bb3a
JB		 7546 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7547
97990a06
JB		 7548 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7549 goto nla_put_failure;
7550 if (wdev->netdev &&
9360ffd1
DM		 7551 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7552 goto nla_put_failure;
2dad624e
ND		 7553 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7554 NL80211_ATTR_PAD))
97990a06 7555 goto nla_put_failure;
2a519311
JB		 7556
7557 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7558 if (!bss)
7559 goto nla_put_failure;
9360ffd1 7560 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7561 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7562 goto nla_put_failure;
9caf0364
JB		 7563
7564 rcu_read_lock();
0e227084
JB		 7565 /* indicate whether we have probe response data or not */
7566 if (rcu_access_pointer(res->proberesp_ies) &&
7567 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7568 goto fail_unlock_rcu;
7569
7570 /* this pointer prefers to be pointed to probe response data
7571 * but is always valid
7572 */
9caf0364 7573 ies = rcu_dereference(res->ies);
8cef2c9d 7574 if (ies) {
2dad624e
ND		 7575 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7576 NL80211_BSS_PAD))
8cef2c9d 7577 goto fail_unlock_rcu;
8cef2c9d
JB		 7578 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7579 ies->len, ies->data))
7580 goto fail_unlock_rcu;
9caf0364 7581 }
0e227084
JB		 7582
7583 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7584 ies = rcu_dereference(res->beacon_ies);
0e227084 7585 if (ies && ies->from_beacon) {
2dad624e
ND		 7586 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7587 NL80211_BSS_PAD))
8cef2c9d
JB		 7588 goto fail_unlock_rcu;
7589 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7590 ies->len, ies->data))
7591 goto fail_unlock_rcu;
9caf0364
JB		 7592 }
7593 rcu_read_unlock();
7594
9360ffd1
DM		 7595 if (res->beacon_interval &&
7596 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7597 goto nla_put_failure;
7598 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7599 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7600 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7601 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7602 jiffies_to_msecs(jiffies - intbss->ts)))
7603 goto nla_put_failure;
2a519311 7604
1d76250b
AS		 7605 if (intbss->parent_tsf &&
7606 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7607 intbss->parent_tsf, NL80211_BSS_PAD) ||
7608 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7609 intbss->parent_bssid)))
7610 goto nla_put_failure;
7611
6e19bc4b 7612 if (intbss->ts_boottime &&
2dad624e
ND		 7613 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7614 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7615 goto nla_put_failure;
7616
77965c97 7617 switch (rdev->wiphy.signal_type) {
2a519311 7618 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7619 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7620 goto nla_put_failure;
2a519311
JB		 7621 break;
7622 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7623 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7624 goto nla_put_failure;
2a519311
JB		 7625 break;
7626 default:
7627 break;
7628 }
7629
48ab905d 7630 switch (wdev->iftype) {
074ac8df 7631 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7632 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7633 if (intbss == wdev->current_bss &&
7634 nla_put_u32(msg, NL80211_BSS_STATUS,
7635 NL80211_BSS_STATUS_ASSOCIATED))
7636 goto nla_put_failure;
48ab905d
JB		 7637 break;
7638 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7639 if (intbss == wdev->current_bss &&
7640 nla_put_u32(msg, NL80211_BSS_STATUS,
7641 NL80211_BSS_STATUS_IBSS_JOINED))
7642 goto nla_put_failure;
48ab905d
JB		 7643 break;
7644 default:
7645 break;
7646 }
7647
2a519311
JB		 7648 nla_nest_end(msg, bss);
7649
053c095a
JB		 7650 genlmsg_end(msg, hdr);
7651 return 0;
2a519311 7652
8cef2c9d
JB		 7653 fail_unlock_rcu:
7654 rcu_read_unlock();
2a519311
JB		 7655 nla_put_failure:
7656 genlmsg_cancel(msg, hdr);
7657 return -EMSGSIZE;
7658}
7659
97990a06 7660static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7661{
48ab905d 7662 struct cfg80211_registered_device *rdev;
2a519311 7663 struct cfg80211_internal_bss *scan;
48ab905d 7664 struct wireless_dev *wdev;
97990a06 7665 int start = cb->args[2], idx = 0;
2a519311
JB		 7666 int err;
7667
ea90e0dc 7668 rtnl_lock();
97990a06 7669 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
ea90e0dc
JB		 7670 if (err) {
7671 rtnl_unlock();
67748893 7672 return err;
ea90e0dc 7673 }
2a519311 7674
48ab905d
JB		 7675 wdev_lock(wdev);
7676 spin_lock_bh(&rdev->bss_lock);
7677 cfg80211_bss_expire(rdev);
7678
9720bb3a
JB		 7679 cb->seq = rdev->bss_generation;
7680
48ab905d 7681 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7682 if (++idx <= start)
7683 continue;
9720bb3a 7684 if (nl80211_send_bss(skb, cb,
2a519311 7685 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7686 rdev, wdev, scan) < 0) {
2a519311 7687 idx--;
67748893 7688 break;
2a519311
JB		 7689 }
7690 }
7691
48ab905d
JB		 7692 spin_unlock_bh(&rdev->bss_lock);
7693 wdev_unlock(wdev);
2a519311 7694
97990a06 7695 cb->args[2] = idx;
ea90e0dc 7696 rtnl_unlock();
2a519311 7697
67748893 7698 return skb->len;
2a519311
JB		 7699}
7700
15e47304 7701static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7702 int flags, struct net_device *dev,
7703 bool allow_radio_stats,
7704 struct survey_info *survey)
61fa713c
HS		 7705{
7706 void *hdr;
7707 struct nlattr *infoattr;
7708
11f78ac3
JB		 7709 /* skip radio stats if userspace didn't request them */
7710 if (!survey->channel && !allow_radio_stats)
7711 return 0;
7712
15e47304 7713 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7714 NL80211_CMD_NEW_SURVEY_RESULTS);
7715 if (!hdr)
7716 return -ENOMEM;
7717
9360ffd1
DM		 7718 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7719 goto nla_put_failure;
61fa713c
HS		 7720
7721 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7722 if (!infoattr)
7723 goto nla_put_failure;
7724
11f78ac3
JB		 7725 if (survey->channel &&
7726 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7727 survey->channel->center_freq))
7728 goto nla_put_failure;
7729
7730 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7731 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7732 goto nla_put_failure;
7733 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7734 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7735 goto nla_put_failure;
4ed20beb 7736 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7737 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7738 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7739 goto nla_put_failure;
4ed20beb 7740 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7741 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7742 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7743 goto nla_put_failure;
4ed20beb 7744 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7745 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7746 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7747 goto nla_put_failure;
4ed20beb 7748 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7749 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7750 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7751 goto nla_put_failure;
4ed20beb 7752 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7753 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7754 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7755 goto nla_put_failure;
052536ab 7756 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7757 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7758 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7759 goto nla_put_failure;
61fa713c
HS		 7760
7761 nla_nest_end(msg, infoattr);
7762
053c095a
JB		 7763 genlmsg_end(msg, hdr);
7764 return 0;
61fa713c
HS		 7765
7766 nla_put_failure:
7767 genlmsg_cancel(msg, hdr);
7768 return -EMSGSIZE;
7769}
7770
11f78ac3 7771static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c 7772{
c90c39da 7773 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
61fa713c 7774 struct survey_info survey;
1b8ec87a 7775 struct cfg80211_registered_device *rdev;
97990a06
JB		 7776 struct wireless_dev *wdev;
7777 int survey_idx = cb->args[2];
61fa713c 7778 int res;
11f78ac3 7779 bool radio_stats;
61fa713c 7780
ea90e0dc 7781 rtnl_lock();
1b8ec87a 7782 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 7783 if (res)
ea90e0dc 7784 goto out_err;
61fa713c 7785
11f78ac3 7786 /* prepare_wdev_dump parsed the attributes */
c90c39da 7787 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
11f78ac3 7788
97990a06
JB		 7789 if (!wdev->netdev) {
7790 res = -EINVAL;
7791 goto out_err;
7792 }
7793
1b8ec87a 7794 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7795 res = -EOPNOTSUPP;
7796 goto out_err;
7797 }
7798
7799 while (1) {
1b8ec87a 7800 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7801 if (res == -ENOENT)
7802 break;
7803 if (res)
7804 goto out_err;
7805
11f78ac3
JB		 7806 /* don't send disabled channels, but do send non-channel data */
7807 if (survey.channel &&
7808 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7809 survey_idx++;
7810 continue;
7811 }
7812
61fa713c 7813 if (nl80211_send_survey(skb,
15e47304 7814 NETLINK_CB(cb->skb).portid,
61fa713c 7815 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7816 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7817 goto out;
7818 survey_idx++;
7819 }
7820
7821 out:
97990a06 7822 cb->args[2] = survey_idx;
61fa713c
HS		 7823 res = skb->len;
7824 out_err:
ea90e0dc 7825 rtnl_unlock();
61fa713c
HS		 7826 return res;
7827}
7828
b23aa676
SO		 7829static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7830{
7831 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7832 NL80211_WPA_VERSION_2));
7833}
7834
636a5d36
JM		 7835static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7836{
4c476991
JB		 7837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7838 struct net_device *dev = info->user_ptr[1];
19957bb3 7839 struct ieee80211_channel *chan;
11b6b5a4
JM		 7840 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
7841 int err, ssid_len, ie_len = 0, auth_data_len = 0;
19957bb3 7842 enum nl80211_auth_type auth_type;
fffd0934 7843 struct key_parse key;
d5cdfacb 7844 bool local_state_change;
636a5d36 7845
f4a11bb0
JB		 7846 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7847 return -EINVAL;
7848
7849 if (!info->attrs[NL80211_ATTR_MAC])
7850 return -EINVAL;
7851
1778092e
JM		 7852 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7853 return -EINVAL;
7854
19957bb3
JB		 7855 if (!info->attrs[NL80211_ATTR_SSID])
7856 return -EINVAL;
7857
7858 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7859 return -EINVAL;
7860
fffd0934
JB		 7861 err = nl80211_parse_key(info, &key);
7862 if (err)
7863 return err;
7864
7865 if (key.idx >= 0) {
e31b8213
JB		 7866 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7867 return -EINVAL;
fffd0934
JB		 7868 if (!key.p.key || !key.p.key_len)
7869 return -EINVAL;
7870 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7871 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7872 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7873 key.p.key_len != WLAN_KEY_LEN_WEP104))
7874 return -EINVAL;
b6b5555b 7875 if (key.idx > 3)
fffd0934
JB		 7876 return -EINVAL;
7877 } else {
7878 key.p.key_len = 0;
7879 key.p.key = NULL;
7880 }
7881
afea0b7a
JB		 7882 if (key.idx >= 0) {
7883 int i;
7884 bool ok = false;
7a087e74 7885
afea0b7a
JB		 7886 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7887 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7888 ok = true;
7889 break;
7890 }
7891 }
4c476991
JB		 7892 if (!ok)
7893 return -EINVAL;
afea0b7a
JB		 7894 }
7895
4c476991
JB		 7896 if (!rdev->ops->auth)
7897 return -EOPNOTSUPP;
636a5d36 7898
074ac8df 7899 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7900 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7901 return -EOPNOTSUPP;
eec60b03 7902
19957bb3 7903 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7904 chan = nl80211_get_valid_chan(&rdev->wiphy,
7905 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7906 if (!chan)
4c476991 7907 return -EINVAL;
636a5d36 7908
19957bb3
JB		 7909 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7910 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7911
7912 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7913 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7914 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7915 }
7916
19957bb3 7917 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7918 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7919 return -EINVAL;
636a5d36 7920
63181060
JM		 7921 if ((auth_type == NL80211_AUTHTYPE_SAE ||
7922 auth_type == NL80211_AUTHTYPE_FILS_SK ||
7923 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
7924 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
11b6b5a4 7925 !info->attrs[NL80211_ATTR_AUTH_DATA])
e39e5b5e
JM		 7926 return -EINVAL;
7927
11b6b5a4 7928 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
63181060
JM		 7929 if (auth_type != NL80211_AUTHTYPE_SAE &&
7930 auth_type != NL80211_AUTHTYPE_FILS_SK &&
7931 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
7932 auth_type != NL80211_AUTHTYPE_FILS_PK)
e39e5b5e 7933 return -EINVAL;
11b6b5a4
JM		 7934 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
7935 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
e39e5b5e 7936 /* need to include at least Auth Transaction and Status Code */
11b6b5a4 7937 if (auth_data_len < 4)
e39e5b5e
JM		 7938 return -EINVAL;
7939 }
7940
d5cdfacb
JM		 7941 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7942
95de817b
JB		 7943 /*
7944 * Since we no longer track auth state, ignore
7945 * requests to only change local state.
7946 */
7947 if (local_state_change)
7948 return 0;
7949
91bf9b26
JB		 7950 wdev_lock(dev->ieee80211_ptr);
7951 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7952 ssid, ssid_len, ie, ie_len,
7953 key.p.key, key.p.key_len, key.idx,
11b6b5a4 7954 auth_data, auth_data_len);
91bf9b26
JB		 7955 wdev_unlock(dev->ieee80211_ptr);
7956 return err;
636a5d36
JM		 7957}
7958
c0692b8f
JB		 7959static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7960 struct genl_info *info,
3dc27d25
JB		 7961 struct cfg80211_crypto_settings *settings,
7962 int cipher_limit)
b23aa676 7963{
c0b2bbd8
JB		 7964 memset(settings, 0, sizeof(*settings));
7965
b23aa676
SO		 7966 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7967
c0692b8f
JB		 7968 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7969 u16 proto;
7a087e74 7970
c0692b8f
JB		 7971 proto = nla_get_u16(
7972 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7973 settings->control_port_ethertype = cpu_to_be16(proto);
7974 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7975 proto != ETH_P_PAE)
7976 return -EINVAL;
7977 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7978 settings->control_port_no_encrypt = true;
7979 } else
7980 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7981
b23aa676
SO		 7982 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7983 void *data;
7984 int len, i;
7985
7986 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7987 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7988 settings->n_ciphers_pairwise = len / sizeof(u32);
7989
7990 if (len % sizeof(u32))
7991 return -EINVAL;
7992
3dc27d25 7993 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7994 return -EINVAL;
7995
7996 memcpy(settings->ciphers_pairwise, data, len);
7997
7998 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7999 if (!cfg80211_supported_cipher_suite(
8000 &rdev->wiphy,
b23aa676
SO		 8001 settings->ciphers_pairwise[i]))
8002 return -EINVAL;
8003 }
8004
8005 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8006 settings->cipher_group =
8007 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 8008 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8009 settings->cipher_group))
b23aa676
SO		 8010 return -EINVAL;
8011 }
8012
8013 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8014 settings->wpa_versions =
8015 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8016 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8017 return -EINVAL;
8018 }
8019
8020 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8021 void *data;
6d30240e 8022 int len;
b23aa676
SO		 8023
8024 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8025 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8026 settings->n_akm_suites = len / sizeof(u32);
8027
8028 if (len % sizeof(u32))
8029 return -EINVAL;
8030
1b9ca027
JM		 8031 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8032 return -EINVAL;
8033
b23aa676 8034 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 8035 }
8036
8037 return 0;
8038}
8039
636a5d36
JM		 8040static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8041{
4c476991
JB		 8042 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8043 struct net_device *dev = info->user_ptr[1];
f444de05 8044 struct ieee80211_channel *chan;
f62fab73
JB		 8045 struct cfg80211_assoc_request req = {};
8046 const u8 *bssid, *ssid;
8047 int err, ssid_len = 0;
636a5d36 8048
f4a11bb0
JB		 8049 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8050 return -EINVAL;
8051
8052 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 8053 !info->attrs[NL80211_ATTR_SSID] ||
8054 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 8055 return -EINVAL;
8056
4c476991
JB		 8057 if (!rdev->ops->assoc)
8058 return -EOPNOTSUPP;
636a5d36 8059
074ac8df 8060 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8061 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8062 return -EOPNOTSUPP;
eec60b03 8063
19957bb3 8064 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8065
664834de
JM		 8066 chan = nl80211_get_valid_chan(&rdev->wiphy,
8067 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8068 if (!chan)
4c476991 8069 return -EINVAL;
636a5d36 8070
19957bb3
JB		 8071 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8072 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8073
8074 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 8075 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8076 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8077 }
8078
dc6382ce 8079 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 8080 enum nl80211_mfp mfp =
dc6382ce 8081 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 8082 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 8083 req.use_mfp = true;
4c476991
JB		 8084 else if (mfp != NL80211_MFP_NO)
8085 return -EINVAL;
dc6382ce
JM		 8086 }
8087
3e5d7649 8088 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 8089 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 8090
7e7c8926 8091 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 8092 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 8093
8094 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 8095 memcpy(&req.ht_capa_mask,
8096 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8097 sizeof(req.ht_capa_mask));
7e7c8926
BG		 8098
8099 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 8100 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 8101 return -EINVAL;
f62fab73
JB		 8102 memcpy(&req.ht_capa,
8103 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8104 sizeof(req.ht_capa));
7e7c8926
BG		 8105 }
8106
ee2aca34 8107 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 8108 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 8109
8110 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 8111 memcpy(&req.vht_capa_mask,
8112 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8113 sizeof(req.vht_capa_mask));
ee2aca34
JB		 8114
8115 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 8116 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 8117 return -EINVAL;
f62fab73
JB		 8118 memcpy(&req.vht_capa,
8119 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8120 sizeof(req.vht_capa));
ee2aca34
JB		 8121 }
8122
bab5ab7d 8123 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8124 if (!((rdev->wiphy.features &
8125 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8126 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8127 !wiphy_ext_feature_isset(&rdev->wiphy,
8128 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8129 return -EINVAL;
8130 req.flags |= ASSOC_REQ_USE_RRM;
8131 }
8132
348bd456
JM		 8133 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8134 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8135 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8136 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8137 return -EINVAL;
8138 req.fils_nonces =
8139 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8140 }
8141
f62fab73 8142 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8143 if (!err) {
8144 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8145
f62fab73
JB		 8146 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8147 ssid, ssid_len, &req);
bd2522b1
AZ		 8148
8149 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8150 dev->ieee80211_ptr->conn_owner_nlportid =
8151 info->snd_portid;
8152 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8153 bssid, ETH_ALEN);
8154 }
8155
91bf9b26
JB		 8156 wdev_unlock(dev->ieee80211_ptr);
8157 }
636a5d36 8158
636a5d36
JM		 8159 return err;
8160}
8161
8162static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8163{
4c476991
JB		 8164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8165 struct net_device *dev = info->user_ptr[1];
19957bb3 8166 const u8 *ie = NULL, *bssid;
91bf9b26 8167 int ie_len = 0, err;
19957bb3 8168 u16 reason_code;
d5cdfacb 8169 bool local_state_change;
636a5d36 8170
f4a11bb0
JB		 8171 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8172 return -EINVAL;
8173
8174 if (!info->attrs[NL80211_ATTR_MAC])
8175 return -EINVAL;
8176
8177 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8178 return -EINVAL;
8179
4c476991
JB		 8180 if (!rdev->ops->deauth)
8181 return -EOPNOTSUPP;
636a5d36 8182
074ac8df 8183 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8184 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8185 return -EOPNOTSUPP;
eec60b03 8186
19957bb3 8187 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8188
19957bb3
JB		 8189 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8190 if (reason_code == 0) {
f4a11bb0 8191 /* Reason Code 0 is reserved */
4c476991 8192 return -EINVAL;
255e737e 8193 }
636a5d36
JM		 8194
8195 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8196 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8197 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8198 }
8199
d5cdfacb
JM		 8200 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8201
91bf9b26
JB		 8202 wdev_lock(dev->ieee80211_ptr);
8203 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8204 local_state_change);
8205 wdev_unlock(dev->ieee80211_ptr);
8206 return err;
636a5d36
JM		 8207}
8208
8209static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8210{
4c476991
JB		 8211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8212 struct net_device *dev = info->user_ptr[1];
19957bb3 8213 const u8 *ie = NULL, *bssid;
91bf9b26 8214 int ie_len = 0, err;
19957bb3 8215 u16 reason_code;
d5cdfacb 8216 bool local_state_change;
636a5d36 8217
f4a11bb0
JB		 8218 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8219 return -EINVAL;
8220
8221 if (!info->attrs[NL80211_ATTR_MAC])
8222 return -EINVAL;
8223
8224 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8225 return -EINVAL;
8226
4c476991
JB		 8227 if (!rdev->ops->disassoc)
8228 return -EOPNOTSUPP;
636a5d36 8229
074ac8df 8230 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8231 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8232 return -EOPNOTSUPP;
eec60b03 8233
19957bb3 8234 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8235
19957bb3
JB		 8236 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8237 if (reason_code == 0) {
f4a11bb0 8238 /* Reason Code 0 is reserved */
4c476991 8239 return -EINVAL;
255e737e 8240 }
636a5d36
JM		 8241
8242 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8243 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8244 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8245 }
8246
d5cdfacb
JM		 8247 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8248
91bf9b26
JB		 8249 wdev_lock(dev->ieee80211_ptr);
8250 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8251 local_state_change);
8252 wdev_unlock(dev->ieee80211_ptr);
8253 return err;
636a5d36
JM		 8254}
8255
dd5b4cc7
FF		 8256static bool
8257nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8258 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8259 int rateval)
8260{
8261 struct wiphy *wiphy = &rdev->wiphy;
8262 bool found = false;
8263 int band, i;
8264
57fbcce3 8265 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8266 struct ieee80211_supported_band *sband;
8267
8268 sband = wiphy->bands[band];
8269 if (!sband)
8270 continue;
8271
8272 for (i = 0; i < sband->n_bitrates; i++) {
8273 if (sband->bitrates[i].bitrate == rateval) {
8274 mcast_rate[band] = i + 1;
8275 found = true;
8276 break;
8277 }
8278 }
8279 }
8280
8281 return found;
8282}
8283
04a773ad
JB		 8284static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8285{
4c476991
JB		 8286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8287 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8288 struct cfg80211_ibss_params ibss;
8289 struct wiphy *wiphy;
fffd0934 8290 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8291 int err;
8292
8e30bc55
JB		 8293 memset(&ibss, 0, sizeof(ibss));
8294
04a773ad
JB		 8295 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8296 return -EINVAL;
8297
683b6d3b 8298 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8299 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8300 return -EINVAL;
8301
8e30bc55
JB		 8302 ibss.beacon_interval = 100;
8303
12d20fc9 8304 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8305 ibss.beacon_interval =
8306 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8307
0c317a02
PK		 8308 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8309 ibss.beacon_interval);
12d20fc9
PK		 8310 if (err)
8311 return err;
8e30bc55 8312
4c476991
JB		 8313 if (!rdev->ops->join_ibss)
8314 return -EOPNOTSUPP;
04a773ad 8315
4c476991
JB		 8316 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8317 return -EOPNOTSUPP;
04a773ad 8318
79c97e97 8319 wiphy = &rdev->wiphy;
04a773ad 8320
39193498 8321 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8322 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8323
8324 if (!is_valid_ether_addr(ibss.bssid))
8325 return -EINVAL;
8326 }
04a773ad
JB		 8327 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8328 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8329
8330 if (info->attrs[NL80211_ATTR_IE]) {
8331 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8332 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8333 }
8334
683b6d3b
JB		 8335 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8336 if (err)
8337 return err;
04a773ad 8338
174e0cd2
IP		 8339 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8340 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8341 return -EINVAL;
8342
2f301ab2 8343 switch (ibss.chandef.width) {
bf372645
SW		 8344 case NL80211_CHAN_WIDTH_5:
8345 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8346 case NL80211_CHAN_WIDTH_20_NOHT:
8347 break;
8348 case NL80211_CHAN_WIDTH_20:
8349 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8350 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8351 return -EINVAL;
8352 break;
8353 case NL80211_CHAN_WIDTH_80:
8354 case NL80211_CHAN_WIDTH_80P80:
8355 case NL80211_CHAN_WIDTH_160:
8356 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8357 return -EINVAL;
8358 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8359 NL80211_EXT_FEATURE_VHT_IBSS))
8360 return -EINVAL;
8361 break;
2f301ab2 8362 default:
c04d6150 8363 return -EINVAL;
2f301ab2 8364 }
db9c64cf 8365
04a773ad 8366 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8367 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8368
fbd2c8dc
TP		 8369 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8370 u8 *rates =
8371 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8372 int n_rates =
8373 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8374 struct ieee80211_supported_band *sband =
683b6d3b 8375 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8376
34850ab2
JB		 8377 err = ieee80211_get_ratemask(sband, rates, n_rates,
8378 &ibss.basic_rates);
8379 if (err)
8380 return err;
fbd2c8dc 8381 }
dd5b4cc7 8382
803768f5
SW		 8383 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8384 memcpy(&ibss.ht_capa_mask,
8385 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8386 sizeof(ibss.ht_capa_mask));
8387
8388 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8389 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8390 return -EINVAL;
8391 memcpy(&ibss.ht_capa,
8392 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8393 sizeof(ibss.ht_capa));
8394 }
8395
dd5b4cc7
FF		 8396 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8397 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8398 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8399 return -EINVAL;
fbd2c8dc 8400
4c476991 8401 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8402 bool no_ht = false;
8403
4c476991 8404 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8405 info->attrs[NL80211_ATTR_KEYS],
8406 &no_ht);
4c476991
JB		 8407 if (IS_ERR(connkeys))
8408 return PTR_ERR(connkeys);
de7044ee 8409
3d9d1d66
JB		 8410 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8411 no_ht) {
5e950a78 8412 kzfree(connkeys);
de7044ee
SM		 8413 return -EINVAL;
8414 }
4c476991 8415 }
04a773ad 8416
267335d6
AQ		 8417 ibss.control_port =
8418 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8419
5336fa88
SW		 8420 ibss.userspace_handles_dfs =
8421 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8422
4c476991 8423 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8424 if (err)
b47f610b 8425 kzfree(connkeys);
04a773ad
JB		 8426 return err;
8427}
8428
8429static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8430{
4c476991
JB		 8431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8432 struct net_device *dev = info->user_ptr[1];
04a773ad 8433
4c476991
JB		 8434 if (!rdev->ops->leave_ibss)
8435 return -EOPNOTSUPP;
04a773ad 8436
4c476991
JB		 8437 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8438 return -EOPNOTSUPP;
04a773ad 8439
4c476991 8440 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8441}
8442
f4e583c8
AQ		 8443static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8444{
8445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8446 struct net_device *dev = info->user_ptr[1];
57fbcce3 8447 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8448 u32 nla_rate;
8449 int err;
8450
8451 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8452 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8453 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8454 return -EOPNOTSUPP;
8455
8456 if (!rdev->ops->set_mcast_rate)
8457 return -EOPNOTSUPP;
8458
8459 memset(mcast_rate, 0, sizeof(mcast_rate));
8460
8461 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8462 return -EINVAL;
8463
8464 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8465 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8466 return -EINVAL;
8467
a1056b1b 8468 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8469
8470 return err;
8471}
8472
ad7e718c
JB		 8473static struct sk_buff *
8474__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8475 struct wireless_dev *wdev, int approxlen,
8476 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8477 enum nl80211_attrs attr,
8478 const struct nl80211_vendor_cmd_info *info,
8479 gfp_t gfp)
ad7e718c
JB		 8480{
8481 struct sk_buff *skb;
8482 void *hdr;
8483 struct nlattr *data;
8484
8485 skb = nlmsg_new(approxlen + 100, gfp);
8486 if (!skb)
8487 return NULL;
8488
8489 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8490 if (!hdr) {
8491 kfree_skb(skb);
8492 return NULL;
8493 }
8494
8495 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8496 goto nla_put_failure;
567ffc35
JB		 8497
8498 if (info) {
8499 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8500 info->vendor_id))
8501 goto nla_put_failure;
8502 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8503 info->subcmd))
8504 goto nla_put_failure;
8505 }
8506
6c09e791 8507 if (wdev) {
2dad624e
ND		 8508 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8509 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8510 goto nla_put_failure;
8511 if (wdev->netdev &&
8512 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8513 wdev->netdev->ifindex))
8514 goto nla_put_failure;
8515 }
8516
ad7e718c 8517 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8518 if (!data)
8519 goto nla_put_failure;
ad7e718c
JB		 8520
8521 ((void **)skb->cb)[0] = rdev;
8522 ((void **)skb->cb)[1] = hdr;
8523 ((void **)skb->cb)[2] = data;
8524
8525 return skb;
8526
8527 nla_put_failure:
8528 kfree_skb(skb);
8529 return NULL;
8530}
f4e583c8 8531
e03ad6ea 8532struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8533 struct wireless_dev *wdev,
e03ad6ea
JB		 8534 enum nl80211_commands cmd,
8535 enum nl80211_attrs attr,
8536 int vendor_event_idx,
8537 int approxlen, gfp_t gfp)
8538{
f26cbf40 8539 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8540 const struct nl80211_vendor_cmd_info *info;
8541
8542 switch (cmd) {
8543 case NL80211_CMD_TESTMODE:
8544 if (WARN_ON(vendor_event_idx != -1))
8545 return NULL;
8546 info = NULL;
8547 break;
8548 case NL80211_CMD_VENDOR:
8549 if (WARN_ON(vendor_event_idx < 0 ||
8550 vendor_event_idx >= wiphy->n_vendor_events))
8551 return NULL;
8552 info = &wiphy->vendor_events[vendor_event_idx];
8553 break;
8554 default:
8555 WARN_ON(1);
8556 return NULL;
8557 }
8558
6c09e791 8559 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8560 cmd, attr, info, gfp);
8561}
8562EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8563
8564void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8565{
8566 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8567 void *hdr = ((void **)skb->cb)[1];
8568 struct nlattr *data = ((void **)skb->cb)[2];
8569 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8570
bd8c78e7
JB		 8571 /* clear CB data for netlink core to own from now on */
8572 memset(skb->cb, 0, sizeof(skb->cb));
8573
e03ad6ea
JB		 8574 nla_nest_end(skb, data);
8575 genlmsg_end(skb, hdr);
8576
8577 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8578 mcgrp = NL80211_MCGRP_VENDOR;
8579
8580 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8581 mcgrp, gfp);
8582}
8583EXPORT_SYMBOL(__cfg80211_send_event_skb);
8584
aff89a9b 8585#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8586static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8587{
4c476991 8588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8589 struct wireless_dev *wdev =
8590 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8591 int err;
8592
fc73f11f
DS		 8593 if (!rdev->ops->testmode_cmd)
8594 return -EOPNOTSUPP;
8595
8596 if (IS_ERR(wdev)) {
8597 err = PTR_ERR(wdev);
8598 if (err != -EINVAL)
8599 return err;
8600 wdev = NULL;
8601 } else if (wdev->wiphy != &rdev->wiphy) {
8602 return -EINVAL;
8603 }
8604
aff89a9b
JB		 8605 if (!info->attrs[NL80211_ATTR_TESTDATA])
8606 return -EINVAL;
8607
ad7e718c 8608 rdev->cur_cmd_info = info;
fc73f11f 8609 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8610 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8611 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8612 rdev->cur_cmd_info = NULL;
aff89a9b 8613
aff89a9b
JB		 8614 return err;
8615}
8616
71063f0e
WYG		 8617static int nl80211_testmode_dump(struct sk_buff *skb,
8618 struct netlink_callback *cb)
8619{
00918d33 8620 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8621 int err;
8622 long phy_idx;
8623 void *data = NULL;
8624 int data_len = 0;
8625
5fe231e8
JB		 8626 rtnl_lock();
8627
71063f0e
WYG		 8628 if (cb->args[0]) {
8629 /*
8630 * 0 is a valid index, but not valid for args[0],
8631 * so we need to offset by 1.
8632 */
8633 phy_idx = cb->args[0] - 1;
a4956dca
LC		 8634
8635 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8636 if (!rdev) {
8637 err = -ENOENT;
8638 goto out_err;
8639 }
71063f0e 8640 } else {
c90c39da
JB		 8641 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8642
71063f0e 8643 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
fceb6435
JB		 8644 attrbuf, nl80211_fam.maxattr,
8645 nl80211_policy, NULL);
71063f0e 8646 if (err)
5fe231e8 8647 goto out_err;
00918d33 8648
c90c39da 8649 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
2bd7e35d 8650 if (IS_ERR(rdev)) {
5fe231e8
JB		 8651 err = PTR_ERR(rdev);
8652 goto out_err;
00918d33 8653 }
2bd7e35d 8654 phy_idx = rdev->wiphy_idx;
2bd7e35d 8655
c90c39da
JB		 8656 if (attrbuf[NL80211_ATTR_TESTDATA])
8657 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
71063f0e
WYG		 8658 }
8659
8660 if (cb->args[1]) {
8661 data = nla_data((void *)cb->args[1]);
8662 data_len = nla_len((void *)cb->args[1]);
8663 }
8664
00918d33 8665 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8666 err = -EOPNOTSUPP;
8667 goto out_err;
8668 }
8669
8670 while (1) {
15e47304 8671 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8672 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8673 NL80211_CMD_TESTMODE);
8674 struct nlattr *tmdata;
8675
cb35fba3
DC		 8676 if (!hdr)
8677 break;
8678
9360ffd1 8679 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8680 genlmsg_cancel(skb, hdr);
8681 break;
8682 }
8683
8684 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8685 if (!tmdata) {
8686 genlmsg_cancel(skb, hdr);
8687 break;
8688 }
e35e4d28 8689 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8690 nla_nest_end(skb, tmdata);
8691
8692 if (err == -ENOBUFS || err == -ENOENT) {
8693 genlmsg_cancel(skb, hdr);
8694 break;
8695 } else if (err) {
8696 genlmsg_cancel(skb, hdr);
8697 goto out_err;
8698 }
8699
8700 genlmsg_end(skb, hdr);
8701 }
8702
8703 err = skb->len;
8704 /* see above */
8705 cb->args[0] = phy_idx + 1;
8706 out_err:
5fe231e8 8707 rtnl_unlock();
71063f0e
WYG		 8708 return err;
8709}
aff89a9b
JB		 8710#endif
8711
b23aa676
SO		 8712static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8713{
4c476991
JB		 8714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8715 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8716 struct cfg80211_connect_params connect;
8717 struct wiphy *wiphy;
fffd0934 8718 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8719 int err;
8720
8721 memset(&connect, 0, sizeof(connect));
8722
8723 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8724 return -EINVAL;
8725
8726 if (!info->attrs[NL80211_ATTR_SSID] ||
8727 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8728 return -EINVAL;
8729
8730 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8731 connect.auth_type =
8732 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8733 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8734 NL80211_CMD_CONNECT))
b23aa676
SO		 8735 return -EINVAL;
8736 } else
8737 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8738
8739 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8740
c0692b8f 8741 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8742 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8743 if (err)
8744 return err;
b23aa676 8745
074ac8df 8746 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8748 return -EOPNOTSUPP;
b23aa676 8749
79c97e97 8750 wiphy = &rdev->wiphy;
b23aa676 8751
4486ea98
BS		 8752 connect.bg_scan_period = -1;
8753 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8754 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8755 connect.bg_scan_period =
8756 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8757 }
8758
b23aa676
SO		 8759 if (info->attrs[NL80211_ATTR_MAC])
8760 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8761 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8762 connect.bssid_hint =
8763 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8764 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8765 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8766
8767 if (info->attrs[NL80211_ATTR_IE]) {
8768 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8769 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8770 }
8771
cee00a95
JM		 8772 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8773 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8774 if (connect.mfp != NL80211_MFP_REQUIRED &&
8775 connect.mfp != NL80211_MFP_NO)
8776 return -EINVAL;
8777 } else {
8778 connect.mfp = NL80211_MFP_NO;
8779 }
8780
ba6fbacf
JM		 8781 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8782 connect.prev_bssid =
8783 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8784
b23aa676 8785 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8786 connect.channel = nl80211_get_valid_chan(
8787 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8788 if (!connect.channel)
1df4a510
JM		 8789 return -EINVAL;
8790 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8791 connect.channel_hint = nl80211_get_valid_chan(
8792 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8793 if (!connect.channel_hint)
4c476991 8794 return -EINVAL;
b23aa676
SO		 8795 }
8796
fffd0934
JB		 8797 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8798 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8799 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8800 if (IS_ERR(connkeys))
8801 return PTR_ERR(connkeys);
fffd0934
JB		 8802 }
8803
7e7c8926
BG		 8804 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8805 connect.flags |= ASSOC_REQ_DISABLE_HT;
8806
8807 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8808 memcpy(&connect.ht_capa_mask,
8809 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8810 sizeof(connect.ht_capa_mask));
8811
8812 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8813 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8814 kzfree(connkeys);
7e7c8926 8815 return -EINVAL;
b4e4f47e 8816 }
7e7c8926
BG		 8817 memcpy(&connect.ht_capa,
8818 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8819 sizeof(connect.ht_capa));
8820 }
8821
ee2aca34
JB		 8822 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8823 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8824
8825 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8826 memcpy(&connect.vht_capa_mask,
8827 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8828 sizeof(connect.vht_capa_mask));
8829
8830 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8831 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8832 kzfree(connkeys);
ee2aca34
JB		 8833 return -EINVAL;
8834 }
8835 memcpy(&connect.vht_capa,
8836 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8837 sizeof(connect.vht_capa));
8838 }
8839
bab5ab7d 8840 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8841 if (!((rdev->wiphy.features &
8842 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8843 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8844 !wiphy_ext_feature_isset(&rdev->wiphy,
8845 NL80211_EXT_FEATURE_RRM)) {
707554b4 8846 kzfree(connkeys);
bab5ab7d 8847 return -EINVAL;
707554b4 8848 }
bab5ab7d
AK		 8849 connect.flags |= ASSOC_REQ_USE_RRM;
8850 }
8851
34d50519 8852 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8853 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8854 kzfree(connkeys);
8855 return -EOPNOTSUPP;
8856 }
8857
38de03d2
AS		 8858 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8859 /* bss selection makes no sense if bssid is set */
8860 if (connect.bssid) {
8861 kzfree(connkeys);
8862 return -EINVAL;
8863 }
8864
8865 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8866 wiphy, &connect.bss_select);
8867 if (err) {
8868 kzfree(connkeys);
8869 return err;
8870 }
8871 }
8872
83739b03 8873 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8874
4ce2bd9c
JM		 8875 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8876 connect.prev_bssid);
fffd0934 8877 if (err)
b47f610b 8878 kzfree(connkeys);
bd2522b1
AZ		 8879
8880 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8881 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
8882 if (connect.bssid)
8883 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8884 connect.bssid, ETH_ALEN);
8885 else
8886 memset(dev->ieee80211_ptr->disconnect_bssid,
8887 0, ETH_ALEN);
8888 }
8889
8890 wdev_unlock(dev->ieee80211_ptr);
8891
b23aa676
SO		 8892 return err;
8893}
8894
088e8df8 8895static int nl80211_update_connect_params(struct sk_buff *skb,
8896 struct genl_info *info)
8897{
8898 struct cfg80211_connect_params connect = {};
8899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8900 struct net_device *dev = info->user_ptr[1];
8901 struct wireless_dev *wdev = dev->ieee80211_ptr;
8902 u32 changed = 0;
8903 int ret;
8904
8905 if (!rdev->ops->update_connect_params)
8906 return -EOPNOTSUPP;
8907
8908 if (info->attrs[NL80211_ATTR_IE]) {
8909 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8910 return -EINVAL;
8911 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8912 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8913 changed |= UPDATE_ASSOC_IES;
8914 }
8915
8916 wdev_lock(dev->ieee80211_ptr);
8917 if (!wdev->current_bss)
8918 ret = -ENOLINK;
8919 else
8920 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
8921 wdev_unlock(dev->ieee80211_ptr);
8922
8923 return ret;
8924}
8925
b23aa676
SO		 8926static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8927{
4c476991
JB		 8928 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8929 struct net_device *dev = info->user_ptr[1];
b23aa676 8930 u16 reason;
83739b03 8931 int ret;
b23aa676
SO		 8932
8933 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8934 reason = WLAN_REASON_DEAUTH_LEAVING;
8935 else
8936 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8937
8938 if (reason == 0)
8939 return -EINVAL;
8940
074ac8df 8941 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8942 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8943 return -EOPNOTSUPP;
b23aa676 8944
83739b03
JB		 8945 wdev_lock(dev->ieee80211_ptr);
8946 ret = cfg80211_disconnect(rdev, dev, reason, true);
8947 wdev_unlock(dev->ieee80211_ptr);
8948 return ret;
b23aa676
SO		 8949}
8950
463d0183
JB		 8951static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8952{
4c476991 8953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8954 struct net *net;
8955 int err;
463d0183 8956
4b681c82
VK		 8957 if (info->attrs[NL80211_ATTR_PID]) {
8958 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8959
8960 net = get_net_ns_by_pid(pid);
8961 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8962 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8963
4b681c82
VK		 8964 net = get_net_ns_by_fd(fd);
8965 } else {
8966 return -EINVAL;
8967 }
463d0183 8968
4c476991
JB		 8969 if (IS_ERR(net))
8970 return PTR_ERR(net);
463d0183
JB		 8971
8972 err = 0;
8973
8974 /* check if anything to do */
4c476991
JB		 8975 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8976 err = cfg80211_switch_netns(rdev, net);
463d0183 8977
463d0183 8978 put_net(net);
463d0183
JB		 8979 return err;
8980}
8981
67fbb16b
SO		 8982static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8983{
4c476991 8984 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8985 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8986 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8987 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8988 struct cfg80211_pmksa pmksa;
8989
8990 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8991
8992 if (!info->attrs[NL80211_ATTR_MAC])
8993 return -EINVAL;
8994
8995 if (!info->attrs[NL80211_ATTR_PMKID])
8996 return -EINVAL;
8997
67fbb16b
SO		 8998 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8999 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9000
074ac8df 9001 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9002 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9003 return -EOPNOTSUPP;
67fbb16b
SO		 9004
9005 switch (info->genlhdr->cmd) {
9006 case NL80211_CMD_SET_PMKSA:
9007 rdev_ops = rdev->ops->set_pmksa;
9008 break;
9009 case NL80211_CMD_DEL_PMKSA:
9010 rdev_ops = rdev->ops->del_pmksa;
9011 break;
9012 default:
9013 WARN_ON(1);
9014 break;
9015 }
9016
4c476991
JB		 9017 if (!rdev_ops)
9018 return -EOPNOTSUPP;
67fbb16b 9019
4c476991 9020 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 9021}
9022
9023static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9024{
4c476991
JB		 9025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9026 struct net_device *dev = info->user_ptr[1];
67fbb16b 9027
074ac8df 9028 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9029 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9030 return -EOPNOTSUPP;
67fbb16b 9031
4c476991
JB		 9032 if (!rdev->ops->flush_pmksa)
9033 return -EOPNOTSUPP;
67fbb16b 9034
e35e4d28 9035 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 9036}
9037
109086ce
AN		 9038static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9039{
9040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9041 struct net_device *dev = info->user_ptr[1];
9042 u8 action_code, dialog_token;
df942e7b 9043 u32 peer_capability = 0;
109086ce
AN		 9044 u16 status_code;
9045 u8 *peer;
31fa97c5 9046 bool initiator;
109086ce
AN		 9047
9048 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9049 !rdev->ops->tdls_mgmt)
9050 return -EOPNOTSUPP;
9051
9052 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9053 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9054 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9055 !info->attrs[NL80211_ATTR_IE] ||
9056 !info->attrs[NL80211_ATTR_MAC])
9057 return -EINVAL;
9058
9059 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9060 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9061 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9062 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 9063 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 9064 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9065 peer_capability =
9066 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 9067
e35e4d28 9068 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 9069 dialog_token, status_code, peer_capability,
31fa97c5 9070 initiator,
e35e4d28
HG		 9071 nla_data(info->attrs[NL80211_ATTR_IE]),
9072 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 9073}
9074
9075static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9076{
9077 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9078 struct net_device *dev = info->user_ptr[1];
9079 enum nl80211_tdls_operation operation;
9080 u8 *peer;
9081
9082 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9083 !rdev->ops->tdls_oper)
9084 return -EOPNOTSUPP;
9085
9086 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9087 !info->attrs[NL80211_ATTR_MAC])
9088 return -EINVAL;
9089
9090 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9091 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9092
e35e4d28 9093 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 9094}
9095
9588bbd5
JM		 9096static int nl80211_remain_on_channel(struct sk_buff *skb,
9097 struct genl_info *info)
9098{
4c476991 9099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9100 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9101 struct cfg80211_chan_def chandef;
9588bbd5
JM		 9102 struct sk_buff *msg;
9103 void *hdr;
9104 u64 cookie;
683b6d3b 9105 u32 duration;
9588bbd5
JM		 9106 int err;
9107
9108 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9109 !info->attrs[NL80211_ATTR_DURATION])
9110 return -EINVAL;
9111
9112 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9113
ebf348fc
JB		 9114 if (!rdev->ops->remain_on_channel ||
9115 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9116 return -EOPNOTSUPP;
9117
9588bbd5 9118 /*
ebf348fc
JB		 9119 * We should be on that channel for at least a minimum amount of
9120 * time (10ms) but no longer than the driver supports.
9588bbd5 9121 */
ebf348fc 9122 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 9123 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 9124 return -EINVAL;
9125
683b6d3b
JB		 9126 err = nl80211_parse_chandef(rdev, info, &chandef);
9127 if (err)
9128 return err;
9588bbd5
JM		 9129
9130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9131 if (!msg)
9132 return -ENOMEM;
9588bbd5 9133
15e47304 9134 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 9135 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 9136 if (!hdr) {
9137 err = -ENOBUFS;
9588bbd5
JM		 9138 goto free_msg;
9139 }
9140
683b6d3b
JB		 9141 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9142 duration, &cookie);
9588bbd5
JM		 9143
9144 if (err)
9145 goto free_msg;
9146
2dad624e
ND		 9147 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9148 NL80211_ATTR_PAD))
9360ffd1 9149 goto nla_put_failure;
9588bbd5
JM		 9150
9151 genlmsg_end(msg, hdr);
4c476991
JB		 9152
9153 return genlmsg_reply(msg, info);
9588bbd5
JM		 9154
9155 nla_put_failure:
9156 err = -ENOBUFS;
9157 free_msg:
9158 nlmsg_free(msg);
9588bbd5
JM		 9159 return err;
9160}
9161
9162static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9163 struct genl_info *info)
9164{
4c476991 9165 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9166 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 9167 u64 cookie;
9588bbd5
JM		 9168
9169 if (!info->attrs[NL80211_ATTR_COOKIE])
9170 return -EINVAL;
9171
4c476991
JB		 9172 if (!rdev->ops->cancel_remain_on_channel)
9173 return -EOPNOTSUPP;
9588bbd5 9174
9588bbd5
JM		 9175 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9176
e35e4d28 9177 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 9178}
9179
13ae75b1
JM		 9180static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9181 struct genl_info *info)
9182{
13ae75b1 9183 struct cfg80211_bitrate_mask mask;
a7c7fbff 9184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9185 struct net_device *dev = info->user_ptr[1];
a7c7fbff 9186 int err;
13ae75b1 9187
4c476991
JB		 9188 if (!rdev->ops->set_bitrate_mask)
9189 return -EOPNOTSUPP;
13ae75b1 9190
a7c7fbff
PK		 9191 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9192 if (err)
9193 return err;
13ae75b1 9194
e35e4d28 9195 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9196}
9197
2e161f78 9198static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9199{
4c476991 9200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9201 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9202 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9203
9204 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9205 return -EINVAL;
9206
2e161f78
JB		 9207 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9208 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9209
71bbc994
JB		 9210 switch (wdev->iftype) {
9211 case NL80211_IFTYPE_STATION:
9212 case NL80211_IFTYPE_ADHOC:
9213 case NL80211_IFTYPE_P2P_CLIENT:
9214 case NL80211_IFTYPE_AP:
9215 case NL80211_IFTYPE_AP_VLAN:
9216 case NL80211_IFTYPE_MESH_POINT:
9217 case NL80211_IFTYPE_P2P_GO:
98104fde 9218 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9219 break;
cb3b7d87 9220 case NL80211_IFTYPE_NAN:
71bbc994 9221 default:
4c476991 9222 return -EOPNOTSUPP;
71bbc994 9223 }
026331c4
JM		 9224
9225 /* not much point in registering if we can't reply */
4c476991
JB		 9226 if (!rdev->ops->mgmt_tx)
9227 return -EOPNOTSUPP;
026331c4 9228
15e47304 9229 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9230 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9231 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9232}
9233
2e161f78 9234static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9235{
4c476991 9236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9237 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9238 struct cfg80211_chan_def chandef;
026331c4 9239 int err;
d64d373f 9240 void *hdr = NULL;
026331c4 9241 u64 cookie;
e247bd90 9242 struct sk_buff *msg = NULL;
b176e629
AO		 9243 struct cfg80211_mgmt_tx_params params = {
9244 .dont_wait_for_ack =
9245 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9246 };
026331c4 9247
683b6d3b 9248 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9249 return -EINVAL;
9250
4c476991
JB		 9251 if (!rdev->ops->mgmt_tx)
9252 return -EOPNOTSUPP;
026331c4 9253
71bbc994 9254 switch (wdev->iftype) {
ea141b75
AQ		 9255 case NL80211_IFTYPE_P2P_DEVICE:
9256 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9257 return -EINVAL;
71bbc994
JB		 9258 case NL80211_IFTYPE_STATION:
9259 case NL80211_IFTYPE_ADHOC:
9260 case NL80211_IFTYPE_P2P_CLIENT:
9261 case NL80211_IFTYPE_AP:
9262 case NL80211_IFTYPE_AP_VLAN:
9263 case NL80211_IFTYPE_MESH_POINT:
9264 case NL80211_IFTYPE_P2P_GO:
9265 break;
cb3b7d87 9266 case NL80211_IFTYPE_NAN:
71bbc994 9267 default:
4c476991 9268 return -EOPNOTSUPP;
71bbc994 9269 }
026331c4 9270
f7ca38df 9271 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9272 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9273 return -EINVAL;
b176e629 9274 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9275
9276 /*
9277 * We should wait on the channel for at least a minimum amount
9278 * of time (10ms) but no longer than the driver supports.
9279 */
b176e629
AO		 9280 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9281 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9282 return -EINVAL;
f7ca38df
JB		 9283 }
9284
b176e629 9285 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9286
b176e629 9287 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9288 return -EINVAL;
9289
b176e629 9290 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9291
ea141b75
AQ		 9292 /* get the channel if any has been specified, otherwise pass NULL to
9293 * the driver. The latter will use the current one
9294 */
9295 chandef.chan = NULL;
9296 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9297 err = nl80211_parse_chandef(rdev, info, &chandef);
9298 if (err)
9299 return err;
9300 }
9301
b176e629 9302 if (!chandef.chan && params.offchan)
ea141b75 9303 return -EINVAL;
026331c4 9304
34d22ce2
AO		 9305 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9306 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9307
9308 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9309 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9310 int i;
9311
9312 if (len % sizeof(u16))
9313 return -EINVAL;
9314
9315 params.n_csa_offsets = len / sizeof(u16);
9316 params.csa_offsets =
9317 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9318
9319 /* check that all the offsets fit the frame */
9320 for (i = 0; i < params.n_csa_offsets; i++) {
9321 if (params.csa_offsets[i] >= params.len)
9322 return -EINVAL;
9323 }
9324 }
9325
b176e629 9326 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9327 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9328 if (!msg)
9329 return -ENOMEM;
026331c4 9330
15e47304 9331 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9332 NL80211_CMD_FRAME);
cb35fba3
DC		 9333 if (!hdr) {
9334 err = -ENOBUFS;
e247bd90
JB		 9335 goto free_msg;
9336 }
026331c4 9337 }
e247bd90 9338
b176e629
AO		 9339 params.chan = chandef.chan;
9340 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9341 if (err)
9342 goto free_msg;
9343
e247bd90 9344 if (msg) {
2dad624e
ND		 9345 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9346 NL80211_ATTR_PAD))
9360ffd1 9347 goto nla_put_failure;
026331c4 9348
e247bd90
JB		 9349 genlmsg_end(msg, hdr);
9350 return genlmsg_reply(msg, info);
9351 }
9352
9353 return 0;
026331c4
JM		 9354
9355 nla_put_failure:
9356 err = -ENOBUFS;
9357 free_msg:
9358 nlmsg_free(msg);
026331c4
JM		 9359 return err;
9360}
9361
f7ca38df
JB		 9362static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9363{
9364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9365 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9366 u64 cookie;
9367
9368 if (!info->attrs[NL80211_ATTR_COOKIE])
9369 return -EINVAL;
9370
9371 if (!rdev->ops->mgmt_tx_cancel_wait)
9372 return -EOPNOTSUPP;
9373
71bbc994
JB		 9374 switch (wdev->iftype) {
9375 case NL80211_IFTYPE_STATION:
9376 case NL80211_IFTYPE_ADHOC:
9377 case NL80211_IFTYPE_P2P_CLIENT:
9378 case NL80211_IFTYPE_AP:
9379 case NL80211_IFTYPE_AP_VLAN:
9380 case NL80211_IFTYPE_P2P_GO:
98104fde 9381 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9382 break;
cb3b7d87 9383 case NL80211_IFTYPE_NAN:
71bbc994 9384 default:
f7ca38df 9385 return -EOPNOTSUPP;
71bbc994 9386 }
f7ca38df
JB		 9387
9388 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9389
e35e4d28 9390 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9391}
9392
ffb9eb3d
KV		 9393static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9394{
4c476991 9395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9396 struct wireless_dev *wdev;
4c476991 9397 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9398 u8 ps_state;
9399 bool state;
9400 int err;
9401
4c476991
JB		 9402 if (!info->attrs[NL80211_ATTR_PS_STATE])
9403 return -EINVAL;
ffb9eb3d
KV		 9404
9405 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9406
4c476991
JB		 9407 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9408 return -EINVAL;
ffb9eb3d
KV		 9409
9410 wdev = dev->ieee80211_ptr;
9411
4c476991
JB		 9412 if (!rdev->ops->set_power_mgmt)
9413 return -EOPNOTSUPP;
ffb9eb3d
KV		 9414
9415 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9416
9417 if (state == wdev->ps)
4c476991 9418 return 0;
ffb9eb3d 9419
e35e4d28 9420 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9421 if (!err)
9422 wdev->ps = state;
ffb9eb3d
KV		 9423 return err;
9424}
9425
9426static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9427{
4c476991 9428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9429 enum nl80211_ps_state ps_state;
9430 struct wireless_dev *wdev;
4c476991 9431 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9432 struct sk_buff *msg;
9433 void *hdr;
9434 int err;
9435
ffb9eb3d
KV		 9436 wdev = dev->ieee80211_ptr;
9437
4c476991
JB		 9438 if (!rdev->ops->set_power_mgmt)
9439 return -EOPNOTSUPP;
ffb9eb3d
KV		 9440
9441 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9442 if (!msg)
9443 return -ENOMEM;
ffb9eb3d 9444
15e47304 9445 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9446 NL80211_CMD_GET_POWER_SAVE);
9447 if (!hdr) {
4c476991 9448 err = -ENOBUFS;
ffb9eb3d
KV		 9449 goto free_msg;
9450 }
9451
9452 if (wdev->ps)
9453 ps_state = NL80211_PS_ENABLED;
9454 else
9455 ps_state = NL80211_PS_DISABLED;
9456
9360ffd1
DM		 9457 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9458 goto nla_put_failure;
ffb9eb3d
KV		 9459
9460 genlmsg_end(msg, hdr);
4c476991 9461 return genlmsg_reply(msg, info);
ffb9eb3d 9462
4c476991 9463 nla_put_failure:
ffb9eb3d 9464 err = -ENOBUFS;
4c476991 9465 free_msg:
ffb9eb3d 9466 nlmsg_free(msg);
ffb9eb3d
KV		 9467 return err;
9468}
9469
94e860f1
JB		 9470static const struct nla_policy
9471nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9472 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9473 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9474 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9475 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9476 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9477 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
bee427b8 9478 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
d6dc1a38
JO		 9479};
9480
84f10708 9481static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9482 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9483{
9484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9485 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9486 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9487
d9d8b019 9488 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9489 return -EINVAL;
9490
84f10708
TP		 9491 if (!rdev->ops->set_cqm_txe_config)
9492 return -EOPNOTSUPP;
9493
9494 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9495 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9496 return -EOPNOTSUPP;
9497
e35e4d28 9498 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9499}
9500
d6dc1a38
JO		 9501static int nl80211_set_cqm_rssi(struct genl_info *info,
9502 s32 threshold, u32 hysteresis)
9503{
4c476991 9504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9505 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9506 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9507
9508 if (threshold > 0)
9509 return -EINVAL;
9510
1da5fcc8
JB		 9511 /* disabling - hysteresis should also be zero then */
9512 if (threshold == 0)
9513 hysteresis = 0;
d6dc1a38 9514
4c476991
JB		 9515 if (!rdev->ops->set_cqm_rssi_config)
9516 return -EOPNOTSUPP;
d6dc1a38 9517
074ac8df 9518 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9519 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9520 return -EOPNOTSUPP;
d6dc1a38 9521
e35e4d28 9522 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9523}
9524
9525static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9526{
9527 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9528 struct nlattr *cqm;
9529 int err;
9530
9531 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9532 if (!cqm)
9533 return -EINVAL;
d6dc1a38
JO		 9534
9535 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
fceb6435 9536 nl80211_attr_cqm_policy, NULL);
d6dc1a38 9537 if (err)
1da5fcc8 9538 return err;
d6dc1a38
JO		 9539
9540 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9541 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9542 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9543 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9544
1da5fcc8
JB		 9545 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9546 }
9547
9548 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9549 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9550 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9551 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9552 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9553 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9554
9555 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9556 }
9557
9558 return -EINVAL;
d6dc1a38
JO		 9559}
9560
6e0bd6c3
RL		 9561static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9562{
9563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9564 struct net_device *dev = info->user_ptr[1];
9565 struct ocb_setup setup = {};
9566 int err;
9567
9568 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9569 if (err)
9570 return err;
9571
9572 return cfg80211_join_ocb(rdev, dev, &setup);
9573}
9574
9575static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9576{
9577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9578 struct net_device *dev = info->user_ptr[1];
9579
9580 return cfg80211_leave_ocb(rdev, dev);
9581}
9582
29cbe68c
JB		 9583static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9584{
9585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9586 struct net_device *dev = info->user_ptr[1];
9587 struct mesh_config cfg;
c80d545d 9588 struct mesh_setup setup;
29cbe68c
JB		 9589 int err;
9590
9591 /* start with default */
9592 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9593 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9594
24bdd9f4 9595 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9596 /* and parse parameters if given */
24bdd9f4 9597 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9598 if (err)
9599 return err;
9600 }
9601
9602 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9603 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9604 return -EINVAL;
9605
c80d545d
JC		 9606 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9607 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9608
4bb62344
CYY		 9609 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9610 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9611 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9612 return -EINVAL;
9613
9bdbf04d
MP		 9614 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9615 setup.beacon_interval =
9616 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 9617
0c317a02
PK		 9618 err = cfg80211_validate_beacon_int(rdev,
9619 NL80211_IFTYPE_MESH_POINT,
9620 setup.beacon_interval);
12d20fc9
PK		 9621 if (err)
9622 return err;
9bdbf04d
MP		 9623 }
9624
9625 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9626 setup.dtim_period =
9627 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9628 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9629 return -EINVAL;
9630 }
9631
c80d545d
JC		 9632 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9633 /* parse additional setup parameters if given */
9634 err = nl80211_parse_mesh_setup(info, &setup);
9635 if (err)
9636 return err;
9637 }
9638
d37bb18a
TP		 9639 if (setup.user_mpm)
9640 cfg.auto_open_plinks = false;
9641
cc1d2806 9642 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9643 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9644 if (err)
9645 return err;
cc1d2806
JB		 9646 } else {
9647 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9648 setup.chandef.chan = NULL;
cc1d2806
JB		 9649 }
9650
ffb3cf30
AN		 9651 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9652 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9653 int n_rates =
9654 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9655 struct ieee80211_supported_band *sband;
9656
9657 if (!setup.chandef.chan)
9658 return -EINVAL;
9659
9660 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9661
9662 err = ieee80211_get_ratemask(sband, rates, n_rates,
9663 &setup.basic_rates);
9664 if (err)
9665 return err;
9666 }
9667
8564e382
JB		 9668 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9669 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9670 if (err)
9671 return err;
9672
9673 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9674 &setup.beacon_rate);
9675 if (err)
9676 return err;
9677 }
9678
c80d545d 9679 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9680}
9681
9682static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9683{
9684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9685 struct net_device *dev = info->user_ptr[1];
9686
9687 return cfg80211_leave_mesh(rdev, dev);
9688}
9689
dfb89c56 9690#ifdef CONFIG_PM
bb92d199
AK		 9691static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9692 struct cfg80211_registered_device *rdev)
9693{
6abb9cb9 9694 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9695 struct nlattr *nl_pats, *nl_pat;
9696 int i, pat_len;
9697
6abb9cb9 9698 if (!wowlan->n_patterns)
bb92d199
AK		 9699 return 0;
9700
9701 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9702 if (!nl_pats)
9703 return -ENOBUFS;
9704
6abb9cb9 9705 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9706 nl_pat = nla_nest_start(msg, i + 1);
9707 if (!nl_pat)
9708 return -ENOBUFS;
6abb9cb9 9709 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9710 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9711 wowlan->patterns[i].mask) ||
50ac6607
AK		 9712 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9713 wowlan->patterns[i].pattern) ||
9714 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9715 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9716 return -ENOBUFS;
9717 nla_nest_end(msg, nl_pat);
9718 }
9719 nla_nest_end(msg, nl_pats);
9720
9721 return 0;
9722}
9723
2a0e047e
JB		 9724static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9725 struct cfg80211_wowlan_tcp *tcp)
9726{
9727 struct nlattr *nl_tcp;
9728
9729 if (!tcp)
9730 return 0;
9731
9732 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9733 if (!nl_tcp)
9734 return -ENOBUFS;
9735
930345ea
JB		 9736 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9737 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9738 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9739 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9740 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9741 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9742 tcp->payload_len, tcp->payload) ||
9743 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9744 tcp->data_interval) ||
9745 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9746 tcp->wake_len, tcp->wake_data) ||
9747 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9748 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9749 return -ENOBUFS;
9750
9751 if (tcp->payload_seq.len &&
9752 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9753 sizeof(tcp->payload_seq), &tcp->payload_seq))
9754 return -ENOBUFS;
9755
9756 if (tcp->payload_tok.len &&
9757 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9758 sizeof(tcp->payload_tok) + tcp->tokens_size,
9759 &tcp->payload_tok))
9760 return -ENOBUFS;
9761
e248ad30
JB		 9762 nla_nest_end(msg, nl_tcp);
9763
2a0e047e
JB		 9764 return 0;
9765}
9766
75453ccb
LC		 9767static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9768 struct cfg80211_sched_scan_request *req)
9769{
3b06d277 9770 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9771 int i;
9772
9773 if (!req)
9774 return 0;
9775
9776 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9777 if (!nd)
9778 return -ENOBUFS;
9779
3b06d277
AS		 9780 if (req->n_scan_plans == 1 &&
9781 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9782 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9783 return -ENOBUFS;
9784
21fea567
LC		 9785 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9786 return -ENOBUFS;
9787
bf95ecdb 9788 if (req->relative_rssi_set) {
9789 struct nl80211_bss_select_rssi_adjust rssi_adjust;
9790
9791 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
9792 req->relative_rssi))
9793 return -ENOBUFS;
9794
9795 rssi_adjust.band = req->rssi_adjust.band;
9796 rssi_adjust.delta = req->rssi_adjust.delta;
9797 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
9798 sizeof(rssi_adjust), &rssi_adjust))
9799 return -ENOBUFS;
9800 }
9801
75453ccb
LC		 9802 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9803 if (!freqs)
9804 return -ENOBUFS;
9805
53b18980
JB		 9806 for (i = 0; i < req->n_channels; i++) {
9807 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9808 return -ENOBUFS;
9809 }
75453ccb
LC		 9810
9811 nla_nest_end(msg, freqs);
9812
9813 if (req->n_match_sets) {
9814 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 9815 if (!matches)
9816 return -ENOBUFS;
9817
75453ccb
LC		 9818 for (i = 0; i < req->n_match_sets; i++) {
9819 match = nla_nest_start(msg, i);
76e1fb4b
JB		 9820 if (!match)
9821 return -ENOBUFS;
9822
53b18980
JB		 9823 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9824 req->match_sets[i].ssid.ssid_len,
9825 req->match_sets[i].ssid.ssid))
9826 return -ENOBUFS;
75453ccb
LC		 9827 nla_nest_end(msg, match);
9828 }
9829 nla_nest_end(msg, matches);
9830 }
9831
3b06d277
AS		 9832 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9833 if (!scan_plans)
9834 return -ENOBUFS;
9835
9836 for (i = 0; i < req->n_scan_plans; i++) {
9837 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 9838 if (!scan_plan)
9839 return -ENOBUFS;
9840
3b06d277
AS		 9841 if (!scan_plan ||
9842 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9843 req->scan_plans[i].interval) ||
9844 (req->scan_plans[i].iterations &&
9845 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9846 req->scan_plans[i].iterations)))
9847 return -ENOBUFS;
9848 nla_nest_end(msg, scan_plan);
9849 }
9850 nla_nest_end(msg, scan_plans);
9851
75453ccb
LC		 9852 nla_nest_end(msg, nd);
9853
9854 return 0;
9855}
9856
ff1b6e69
JB		 9857static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9858{
9859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9860 struct sk_buff *msg;
9861 void *hdr;
2a0e047e 9862 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9863
964dc9e2 9864 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9865 return -EOPNOTSUPP;
9866
6abb9cb9 9867 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9868 /* adjust size to have room for all the data */
6abb9cb9
JB		 9869 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9870 rdev->wiphy.wowlan_config->tcp->payload_len +
9871 rdev->wiphy.wowlan_config->tcp->wake_len +
9872 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9873 }
9874
9875 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9876 if (!msg)
9877 return -ENOMEM;
9878
15e47304 9879 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9880 NL80211_CMD_GET_WOWLAN);
9881 if (!hdr)
9882 goto nla_put_failure;
9883
6abb9cb9 9884 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9885 struct nlattr *nl_wowlan;
9886
9887 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9888 if (!nl_wowlan)
9889 goto nla_put_failure;
9890
6abb9cb9 9891 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9892 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9893 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9894 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9895 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9896 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9897 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9898 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9899 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9900 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9901 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9902 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9903 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9904 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9905 goto nla_put_failure;
2a0e047e 9906
bb92d199
AK		 9907 if (nl80211_send_wowlan_patterns(msg, rdev))
9908 goto nla_put_failure;
2a0e047e 9909
6abb9cb9
JB		 9910 if (nl80211_send_wowlan_tcp(msg,
9911 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9912 goto nla_put_failure;
75453ccb
LC		 9913
9914 if (nl80211_send_wowlan_nd(
9915 msg,
9916 rdev->wiphy.wowlan_config->nd_config))
9917 goto nla_put_failure;
2a0e047e 9918
ff1b6e69
JB		 9919 nla_nest_end(msg, nl_wowlan);
9920 }
9921
9922 genlmsg_end(msg, hdr);
9923 return genlmsg_reply(msg, info);
9924
9925nla_put_failure:
9926 nlmsg_free(msg);
9927 return -ENOBUFS;
9928}
9929
2a0e047e
JB		 9930static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9931 struct nlattr *attr,
9932 struct cfg80211_wowlan *trig)
9933{
9934 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9935 struct cfg80211_wowlan_tcp *cfg;
9936 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9937 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9938 u32 size;
9939 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9940 int err, port;
9941
964dc9e2 9942 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9943 return -EINVAL;
9944
bfe2c7b1 9945 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
fceb6435 9946 nl80211_wowlan_tcp_policy, NULL);
2a0e047e
JB		 9947 if (err)
9948 return err;
9949
9950 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9951 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9952 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9953 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9954 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9955 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9956 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9957 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9958 return -EINVAL;
9959
9960 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9961 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9962 return -EINVAL;
9963
9964 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9965 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9966 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9967 return -EINVAL;
9968
9969 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9970 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9971 return -EINVAL;
9972
9973 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9974 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9975 return -EINVAL;
9976
9977 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9978 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9979
9980 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9981 tokens_size = tokln - sizeof(*tok);
9982
9983 if (!tok->len || tokens_size % tok->len)
9984 return -EINVAL;
964dc9e2 9985 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9986 return -EINVAL;
964dc9e2 9987 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9988 return -EINVAL;
964dc9e2 9989 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9990 return -EINVAL;
964dc9e2 9991 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9992 return -EINVAL;
9993 if (tok->offset + tok->len > data_size)
9994 return -EINVAL;
9995 }
9996
9997 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9998 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9999 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 10000 return -EINVAL;
10001 if (seq->len == 0 || seq->len > 4)
10002 return -EINVAL;
10003 if (seq->len + seq->offset > data_size)
10004 return -EINVAL;
10005 }
10006
10007 size = sizeof(*cfg);
10008 size += data_size;
10009 size += wake_size + wake_mask_size;
10010 size += tokens_size;
10011
10012 cfg = kzalloc(size, GFP_KERNEL);
10013 if (!cfg)
10014 return -ENOMEM;
67b61f6c
JB		 10015 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10016 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 10017 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10018 ETH_ALEN);
10019 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10020 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10021 else
10022 port = 0;
10023#ifdef CONFIG_INET
10024 /* allocate a socket and port for it and use it */
10025 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10026 IPPROTO_TCP, &cfg->sock, 1);
10027 if (err) {
10028 kfree(cfg);
10029 return err;
10030 }
10031 if (inet_csk_get_port(cfg->sock->sk, port)) {
10032 sock_release(cfg->sock);
10033 kfree(cfg);
10034 return -EADDRINUSE;
10035 }
10036 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10037#else
10038 if (!port) {
10039 kfree(cfg);
10040 return -EINVAL;
10041 }
10042 cfg->src_port = port;
10043#endif
10044
10045 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10046 cfg->payload_len = data_size;
10047 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10048 memcpy((void *)cfg->payload,
10049 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10050 data_size);
10051 if (seq)
10052 cfg->payload_seq = *seq;
10053 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10054 cfg->wake_len = wake_size;
10055 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10056 memcpy((void *)cfg->wake_data,
10057 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10058 wake_size);
10059 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10060 data_size + wake_size;
10061 memcpy((void *)cfg->wake_mask,
10062 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10063 wake_mask_size);
10064 if (tok) {
10065 cfg->tokens_size = tokens_size;
10066 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10067 }
10068
10069 trig->tcp = cfg;
10070
10071 return 0;
10072}
10073
8cd4d456
LC		 10074static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10075 const struct wiphy_wowlan_support *wowlan,
10076 struct nlattr *attr,
10077 struct cfg80211_wowlan *trig)
10078{
10079 struct nlattr **tb;
10080 int err;
10081
10082 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10083 if (!tb)
10084 return -ENOMEM;
10085
10086 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10087 err = -EOPNOTSUPP;
10088 goto out;
10089 }
10090
fceb6435
JB		 10091 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10092 NULL);
8cd4d456
LC		 10093 if (err)
10094 goto out;
10095
aad1e812
AVS		 10096 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10097 wowlan->max_nd_match_sets);
8cd4d456
LC		 10098 err = PTR_ERR_OR_ZERO(trig->nd_config);
10099 if (err)
10100 trig->nd_config = NULL;
10101
10102out:
10103 kfree(tb);
10104 return err;
10105}
10106
ff1b6e69
JB		 10107static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10108{
10109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10110 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 10111 struct cfg80211_wowlan new_triggers = {};
ae33bd81 10112 struct cfg80211_wowlan *ntrig;
964dc9e2 10113 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 10114 int err, i;
6abb9cb9 10115 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 10116 bool regular = false;
ff1b6e69 10117
964dc9e2 10118 if (!wowlan)
ff1b6e69
JB		 10119 return -EOPNOTSUPP;
10120
ae33bd81
JB		 10121 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10122 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10123 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 10124 goto set_wakeup;
10125 }
ff1b6e69 10126
bfe2c7b1
JB		 10127 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10128 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
fceb6435 10129 nl80211_wowlan_policy, NULL);
ff1b6e69
JB		 10130 if (err)
10131 return err;
10132
10133 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10134 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10135 return -EINVAL;
10136 new_triggers.any = true;
10137 }
10138
10139 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10140 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10141 return -EINVAL;
10142 new_triggers.disconnect = true;
98fc4386 10143 regular = true;
ff1b6e69
JB		 10144 }
10145
10146 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10147 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10148 return -EINVAL;
10149 new_triggers.magic_pkt = true;
98fc4386 10150 regular = true;
ff1b6e69
JB		 10151 }
10152
77dbbb13
JB		 10153 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10154 return -EINVAL;
10155
10156 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10157 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10158 return -EINVAL;
10159 new_triggers.gtk_rekey_failure = true;
98fc4386 10160 regular = true;
77dbbb13
JB		 10161 }
10162
10163 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10164 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10165 return -EINVAL;
10166 new_triggers.eap_identity_req = true;
98fc4386 10167 regular = true;
77dbbb13
JB		 10168 }
10169
10170 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10171 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10172 return -EINVAL;
10173 new_triggers.four_way_handshake = true;
98fc4386 10174 regular = true;
77dbbb13
JB		 10175 }
10176
10177 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10178 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10179 return -EINVAL;
10180 new_triggers.rfkill_release = true;
98fc4386 10181 regular = true;
77dbbb13
JB		 10182 }
10183
ff1b6e69
JB		 10184 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10185 struct nlattr *pat;
10186 int n_patterns = 0;
bb92d199 10187 int rem, pat_len, mask_len, pkt_offset;
50ac6607 10188 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 10189
98fc4386
JB		 10190 regular = true;
10191
ff1b6e69
JB		 10192 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10193 rem)
10194 n_patterns++;
10195 if (n_patterns > wowlan->n_patterns)
10196 return -EINVAL;
10197
10198 new_triggers.patterns = kcalloc(n_patterns,
10199 sizeof(new_triggers.patterns[0]),
10200 GFP_KERNEL);
10201 if (!new_triggers.patterns)
10202 return -ENOMEM;
10203
10204 new_triggers.n_patterns = n_patterns;
10205 i = 0;
10206
10207 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10208 rem) {
922bd80f
JB		 10209 u8 *mask_pat;
10210
bfe2c7b1 10211 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
fceb6435 10212 NULL, NULL);
ff1b6e69 10213 err = -EINVAL;
50ac6607
AK		 10214 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10215 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 10216 goto error;
50ac6607 10217 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 10218 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 10219 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 10220 goto error;
10221 if (pat_len > wowlan->pattern_max_len ||
10222 pat_len < wowlan->pattern_min_len)
10223 goto error;
10224
50ac6607 10225 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 10226 pkt_offset = 0;
10227 else
10228 pkt_offset = nla_get_u32(
50ac6607 10229 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 10230 if (pkt_offset > wowlan->max_pkt_offset)
10231 goto error;
10232 new_triggers.patterns[i].pkt_offset = pkt_offset;
10233
922bd80f
JB		 10234 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10235 if (!mask_pat) {
ff1b6e69
JB		 10236 err = -ENOMEM;
10237 goto error;
10238 }
922bd80f
JB		 10239 new_triggers.patterns[i].mask = mask_pat;
10240 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 10241 mask_len);
922bd80f
JB		 10242 mask_pat += mask_len;
10243 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 10244 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 10245 memcpy(mask_pat,
50ac6607 10246 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 10247 pat_len);
10248 i++;
10249 }
10250 }
10251
2a0e047e 10252 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10253 regular = true;
2a0e047e
JB		 10254 err = nl80211_parse_wowlan_tcp(
10255 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10256 &new_triggers);
10257 if (err)
10258 goto error;
10259 }
10260
8cd4d456 10261 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10262 regular = true;
8cd4d456
LC		 10263 err = nl80211_parse_wowlan_nd(
10264 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10265 &new_triggers);
10266 if (err)
10267 goto error;
10268 }
10269
98fc4386
JB		 10270 /* The 'any' trigger means the device continues operating more or less
10271 * as in its normal operation mode and wakes up the host on most of the
10272 * normal interrupts (like packet RX, ...)
10273 * It therefore makes little sense to combine with the more constrained
10274 * wakeup trigger modes.
10275 */
10276 if (new_triggers.any && regular) {
10277 err = -EINVAL;
10278 goto error;
10279 }
10280
ae33bd81
JB		 10281 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10282 if (!ntrig) {
10283 err = -ENOMEM;
10284 goto error;
ff1b6e69 10285 }
ae33bd81 10286 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10287 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10288
ae33bd81 10289 set_wakeup:
6abb9cb9
JB		 10290 if (rdev->ops->set_wakeup &&
10291 prev_enabled != !!rdev->wiphy.wowlan_config)
10292 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10293
ff1b6e69
JB		 10294 return 0;
10295 error:
10296 for (i = 0; i < new_triggers.n_patterns; i++)
10297 kfree(new_triggers.patterns[i].mask);
10298 kfree(new_triggers.patterns);
2a0e047e
JB		 10299 if (new_triggers.tcp && new_triggers.tcp->sock)
10300 sock_release(new_triggers.tcp->sock);
10301 kfree(new_triggers.tcp);
e5dbe070 10302 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10303 return err;
10304}
dfb89c56 10305#endif
ff1b6e69 10306
be29b99a
AK		 10307static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10308 struct cfg80211_registered_device *rdev)
10309{
10310 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10311 int i, j, pat_len;
10312 struct cfg80211_coalesce_rules *rule;
10313
10314 if (!rdev->coalesce->n_rules)
10315 return 0;
10316
10317 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10318 if (!nl_rules)
10319 return -ENOBUFS;
10320
10321 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10322 nl_rule = nla_nest_start(msg, i + 1);
10323 if (!nl_rule)
10324 return -ENOBUFS;
10325
10326 rule = &rdev->coalesce->rules[i];
10327 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10328 rule->delay))
10329 return -ENOBUFS;
10330
10331 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10332 rule->condition))
10333 return -ENOBUFS;
10334
10335 nl_pats = nla_nest_start(msg,
10336 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10337 if (!nl_pats)
10338 return -ENOBUFS;
10339
10340 for (j = 0; j < rule->n_patterns; j++) {
10341 nl_pat = nla_nest_start(msg, j + 1);
10342 if (!nl_pat)
10343 return -ENOBUFS;
10344 pat_len = rule->patterns[j].pattern_len;
10345 if (nla_put(msg, NL80211_PKTPAT_MASK,
10346 DIV_ROUND_UP(pat_len, 8),
10347 rule->patterns[j].mask) ||
10348 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10349 rule->patterns[j].pattern) ||
10350 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10351 rule->patterns[j].pkt_offset))
10352 return -ENOBUFS;
10353 nla_nest_end(msg, nl_pat);
10354 }
10355 nla_nest_end(msg, nl_pats);
10356 nla_nest_end(msg, nl_rule);
10357 }
10358 nla_nest_end(msg, nl_rules);
10359
10360 return 0;
10361}
10362
10363static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10364{
10365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10366 struct sk_buff *msg;
10367 void *hdr;
10368
10369 if (!rdev->wiphy.coalesce)
10370 return -EOPNOTSUPP;
10371
10372 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10373 if (!msg)
10374 return -ENOMEM;
10375
10376 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10377 NL80211_CMD_GET_COALESCE);
10378 if (!hdr)
10379 goto nla_put_failure;
10380
10381 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10382 goto nla_put_failure;
10383
10384 genlmsg_end(msg, hdr);
10385 return genlmsg_reply(msg, info);
10386
10387nla_put_failure:
10388 nlmsg_free(msg);
10389 return -ENOBUFS;
10390}
10391
10392void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10393{
10394 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10395 int i, j;
10396 struct cfg80211_coalesce_rules *rule;
10397
10398 if (!coalesce)
10399 return;
10400
10401 for (i = 0; i < coalesce->n_rules; i++) {
10402 rule = &coalesce->rules[i];
10403 for (j = 0; j < rule->n_patterns; j++)
10404 kfree(rule->patterns[j].mask);
10405 kfree(rule->patterns);
10406 }
10407 kfree(coalesce->rules);
10408 kfree(coalesce);
10409 rdev->coalesce = NULL;
10410}
10411
10412static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10413 struct nlattr *rule,
10414 struct cfg80211_coalesce_rules *new_rule)
10415{
10416 int err, i;
10417 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10418 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10419 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10420 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10421
bfe2c7b1 10422 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
fceb6435 10423 nl80211_coalesce_policy, NULL);
be29b99a
AK		 10424 if (err)
10425 return err;
10426
10427 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10428 new_rule->delay =
10429 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10430 if (new_rule->delay > coalesce->max_delay)
10431 return -EINVAL;
10432
10433 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10434 new_rule->condition =
10435 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10436 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10437 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10438 return -EINVAL;
10439
10440 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10441 return -EINVAL;
10442
10443 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10444 rem)
10445 n_patterns++;
10446 if (n_patterns > coalesce->n_patterns)
10447 return -EINVAL;
10448
10449 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10450 GFP_KERNEL);
10451 if (!new_rule->patterns)
10452 return -ENOMEM;
10453
10454 new_rule->n_patterns = n_patterns;
10455 i = 0;
10456
10457 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10458 rem) {
922bd80f
JB		 10459 u8 *mask_pat;
10460
fceb6435 10461 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL, NULL);
be29b99a
AK		 10462 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10463 !pat_tb[NL80211_PKTPAT_PATTERN])
10464 return -EINVAL;
10465 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10466 mask_len = DIV_ROUND_UP(pat_len, 8);
10467 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10468 return -EINVAL;
10469 if (pat_len > coalesce->pattern_max_len ||
10470 pat_len < coalesce->pattern_min_len)
10471 return -EINVAL;
10472
10473 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10474 pkt_offset = 0;
10475 else
10476 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10477 if (pkt_offset > coalesce->max_pkt_offset)
10478 return -EINVAL;
10479 new_rule->patterns[i].pkt_offset = pkt_offset;
10480
922bd80f
JB		 10481 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10482 if (!mask_pat)
be29b99a 10483 return -ENOMEM;
922bd80f
JB		 10484
10485 new_rule->patterns[i].mask = mask_pat;
10486 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10487 mask_len);
10488
10489 mask_pat += mask_len;
10490 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10491 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10492 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10493 pat_len);
be29b99a
AK		 10494 i++;
10495 }
10496
10497 return 0;
10498}
10499
10500static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10501{
10502 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10503 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10504 struct cfg80211_coalesce new_coalesce = {};
10505 struct cfg80211_coalesce *n_coalesce;
10506 int err, rem_rule, n_rules = 0, i, j;
10507 struct nlattr *rule;
10508 struct cfg80211_coalesce_rules *tmp_rule;
10509
10510 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10511 return -EOPNOTSUPP;
10512
10513 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10514 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10515 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10516 return 0;
10517 }
10518
10519 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10520 rem_rule)
10521 n_rules++;
10522 if (n_rules > coalesce->n_rules)
10523 return -EINVAL;
10524
10525 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10526 GFP_KERNEL);
10527 if (!new_coalesce.rules)
10528 return -ENOMEM;
10529
10530 new_coalesce.n_rules = n_rules;
10531 i = 0;
10532
10533 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10534 rem_rule) {
10535 err = nl80211_parse_coalesce_rule(rdev, rule,
10536 &new_coalesce.rules[i]);
10537 if (err)
10538 goto error;
10539
10540 i++;
10541 }
10542
a1056b1b 10543 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10544 if (err)
10545 goto error;
10546
10547 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10548 if (!n_coalesce) {
10549 err = -ENOMEM;
10550 goto error;
10551 }
10552 cfg80211_rdev_free_coalesce(rdev);
10553 rdev->coalesce = n_coalesce;
10554
10555 return 0;
10556error:
10557 for (i = 0; i < new_coalesce.n_rules; i++) {
10558 tmp_rule = &new_coalesce.rules[i];
10559 for (j = 0; j < tmp_rule->n_patterns; j++)
10560 kfree(tmp_rule->patterns[j].mask);
10561 kfree(tmp_rule->patterns);
10562 }
10563 kfree(new_coalesce.rules);
10564
10565 return err;
10566}
10567
e5497d76
JB		 10568static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10569{
10570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10571 struct net_device *dev = info->user_ptr[1];
10572 struct wireless_dev *wdev = dev->ieee80211_ptr;
10573 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10574 struct cfg80211_gtk_rekey_data rekey_data;
10575 int err;
10576
10577 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10578 return -EINVAL;
10579
bfe2c7b1
JB		 10580 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10581 info->attrs[NL80211_ATTR_REKEY_DATA],
fceb6435 10582 nl80211_rekey_policy, NULL);
e5497d76
JB		 10583 if (err)
10584 return err;
10585
10586 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10587 return -ERANGE;
10588 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10589 return -ERANGE;
10590 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10591 return -ERANGE;
10592
78f686ca
JB		 10593 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10594 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10595 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10596
10597 wdev_lock(wdev);
10598 if (!wdev->current_bss) {
10599 err = -ENOTCONN;
10600 goto out;
10601 }
10602
10603 if (!rdev->ops->set_rekey_data) {
10604 err = -EOPNOTSUPP;
10605 goto out;
10606 }
10607
e35e4d28 10608 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10609 out:
10610 wdev_unlock(wdev);
10611 return err;
10612}
10613
28946da7
JB		 10614static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10615 struct genl_info *info)
10616{
10617 struct net_device *dev = info->user_ptr[1];
10618 struct wireless_dev *wdev = dev->ieee80211_ptr;
10619
10620 if (wdev->iftype != NL80211_IFTYPE_AP &&
10621 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10622 return -EINVAL;
10623
15e47304 10624 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10625 return -EBUSY;
10626
15e47304 10627 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10628 return 0;
10629}
10630
7f6cf311
JB		 10631static int nl80211_probe_client(struct sk_buff *skb,
10632 struct genl_info *info)
10633{
10634 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10635 struct net_device *dev = info->user_ptr[1];
10636 struct wireless_dev *wdev = dev->ieee80211_ptr;
10637 struct sk_buff *msg;
10638 void *hdr;
10639 const u8 *addr;
10640 u64 cookie;
10641 int err;
10642
10643 if (wdev->iftype != NL80211_IFTYPE_AP &&
10644 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10645 return -EOPNOTSUPP;
10646
10647 if (!info->attrs[NL80211_ATTR_MAC])
10648 return -EINVAL;
10649
10650 if (!rdev->ops->probe_client)
10651 return -EOPNOTSUPP;
10652
10653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10654 if (!msg)
10655 return -ENOMEM;
10656
15e47304 10657 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10658 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10659 if (!hdr) {
10660 err = -ENOBUFS;
7f6cf311
JB		 10661 goto free_msg;
10662 }
10663
10664 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10665
e35e4d28 10666 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10667 if (err)
10668 goto free_msg;
10669
2dad624e
ND		 10670 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10671 NL80211_ATTR_PAD))
9360ffd1 10672 goto nla_put_failure;
7f6cf311
JB		 10673
10674 genlmsg_end(msg, hdr);
10675
10676 return genlmsg_reply(msg, info);
10677
10678 nla_put_failure:
10679 err = -ENOBUFS;
10680 free_msg:
10681 nlmsg_free(msg);
10682 return err;
10683}
10684
5e760230
JB		 10685static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10686{
10687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10688 struct cfg80211_beacon_registration *reg, *nreg;
10689 int rv;
5e760230
JB		 10690
10691 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10692 return -EOPNOTSUPP;
10693
37c73b5f
BG		 10694 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10695 if (!nreg)
10696 return -ENOMEM;
10697
10698 /* First, check if already registered. */
10699 spin_lock_bh(&rdev->beacon_registrations_lock);
10700 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10701 if (reg->nlportid == info->snd_portid) {
10702 rv = -EALREADY;
10703 goto out_err;
10704 }
10705 }
10706 /* Add it to the list */
10707 nreg->nlportid = info->snd_portid;
10708 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10709
37c73b5f 10710 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10711
10712 return 0;
37c73b5f
BG		 10713out_err:
10714 spin_unlock_bh(&rdev->beacon_registrations_lock);
10715 kfree(nreg);
10716 return rv;
5e760230
JB		 10717}
10718
98104fde
JB		 10719static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10720{
10721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10722 struct wireless_dev *wdev = info->user_ptr[1];
10723 int err;
10724
10725 if (!rdev->ops->start_p2p_device)
10726 return -EOPNOTSUPP;
10727
10728 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10729 return -EOPNOTSUPP;
10730
73c7da3d 10731 if (wdev_running(wdev))
98104fde
JB		 10732 return 0;
10733
b6a55015
LC		 10734 if (rfkill_blocked(rdev->rfkill))
10735 return -ERFKILL;
98104fde 10736
eeb126e9 10737 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10738 if (err)
10739 return err;
10740
73c7da3d 10741 wdev->is_running = true;
98104fde 10742 rdev->opencount++;
98104fde
JB		 10743
10744 return 0;
10745}
10746
10747static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10748{
10749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10750 struct wireless_dev *wdev = info->user_ptr[1];
10751
10752 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10753 return -EOPNOTSUPP;
10754
10755 if (!rdev->ops->stop_p2p_device)
10756 return -EOPNOTSUPP;
10757
f9f47529 10758 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10759
10760 return 0;
10761}
10762
cb3b7d87
AB		 10763static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
10764{
10765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10766 struct wireless_dev *wdev = info->user_ptr[1];
10767 struct cfg80211_nan_conf conf = {};
10768 int err;
10769
10770 if (wdev->iftype != NL80211_IFTYPE_NAN)
10771 return -EOPNOTSUPP;
10772
eeb04a96 10773 if (wdev_running(wdev))
cb3b7d87
AB		 10774 return -EEXIST;
10775
10776 if (rfkill_blocked(rdev->rfkill))
10777 return -ERFKILL;
10778
10779 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
10780 return -EINVAL;
10781
cb3b7d87
AB		 10782 conf.master_pref =
10783 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10784 if (!conf.master_pref)
10785 return -EINVAL;
10786
8585989d
LC		 10787 if (info->attrs[NL80211_ATTR_BANDS]) {
10788 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
10789
10790 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
10791 return -EOPNOTSUPP;
10792
10793 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
10794 return -EINVAL;
10795
10796 conf.bands = bands;
10797 }
cb3b7d87
AB		 10798
10799 err = rdev_start_nan(rdev, wdev, &conf);
10800 if (err)
10801 return err;
10802
73c7da3d 10803 wdev->is_running = true;
cb3b7d87
AB		 10804 rdev->opencount++;
10805
10806 return 0;
10807}
10808
10809static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
10810{
10811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10812 struct wireless_dev *wdev = info->user_ptr[1];
10813
10814 if (wdev->iftype != NL80211_IFTYPE_NAN)
10815 return -EOPNOTSUPP;
10816
10817 cfg80211_stop_nan(rdev, wdev);
10818
10819 return 0;
10820}
10821
a442b761
AB		 10822static int validate_nan_filter(struct nlattr *filter_attr)
10823{
10824 struct nlattr *attr;
10825 int len = 0, n_entries = 0, rem;
10826
10827 nla_for_each_nested(attr, filter_attr, rem) {
10828 len += nla_len(attr);
10829 n_entries++;
10830 }
10831
10832 if (len >= U8_MAX)
10833 return -EINVAL;
10834
10835 return n_entries;
10836}
10837
10838static int handle_nan_filter(struct nlattr *attr_filter,
10839 struct cfg80211_nan_func *func,
10840 bool tx)
10841{
10842 struct nlattr *attr;
10843 int n_entries, rem, i;
10844 struct cfg80211_nan_func_filter *filter;
10845
10846 n_entries = validate_nan_filter(attr_filter);
10847 if (n_entries < 0)
10848 return n_entries;
10849
10850 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
10851
10852 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
10853 if (!filter)
10854 return -ENOMEM;
10855
10856 i = 0;
10857 nla_for_each_nested(attr, attr_filter, rem) {
b15ca182 10858 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
a442b761
AB		 10859 filter[i].len = nla_len(attr);
10860 i++;
10861 }
10862 if (tx) {
10863 func->num_tx_filters = n_entries;
10864 func->tx_filters = filter;
10865 } else {
10866 func->num_rx_filters = n_entries;
10867 func->rx_filters = filter;
10868 }
10869
10870 return 0;
10871}
10872
10873static int nl80211_nan_add_func(struct sk_buff *skb,
10874 struct genl_info *info)
10875{
10876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10877 struct wireless_dev *wdev = info->user_ptr[1];
10878 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
10879 struct cfg80211_nan_func *func;
10880 struct sk_buff *msg = NULL;
10881 void *hdr = NULL;
10882 int err = 0;
10883
10884 if (wdev->iftype != NL80211_IFTYPE_NAN)
10885 return -EOPNOTSUPP;
10886
73c7da3d 10887 if (!wdev_running(wdev))
a442b761
AB		 10888 return -ENOTCONN;
10889
10890 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
10891 return -EINVAL;
10892
10893 if (wdev->owner_nlportid &&
10894 wdev->owner_nlportid != info->snd_portid)
10895 return -ENOTCONN;
10896
bfe2c7b1
JB		 10897 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
10898 info->attrs[NL80211_ATTR_NAN_FUNC],
fceb6435 10899 nl80211_nan_func_policy, NULL);
a442b761
AB		 10900 if (err)
10901 return err;
10902
10903 func = kzalloc(sizeof(*func), GFP_KERNEL);
10904 if (!func)
10905 return -ENOMEM;
10906
10907 func->cookie = wdev->wiphy->cookie_counter++;
10908
10909 if (!tb[NL80211_NAN_FUNC_TYPE] ||
10910 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
10911 err = -EINVAL;
10912 goto out;
10913 }
10914
10915
10916 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
10917
10918 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
10919 err = -EINVAL;
10920 goto out;
10921 }
10922
10923 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
10924 sizeof(func->service_id));
10925
10926 func->close_range =
10927 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
10928
10929 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
10930 func->serv_spec_info_len =
10931 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
10932 func->serv_spec_info =
10933 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
10934 func->serv_spec_info_len,
10935 GFP_KERNEL);
10936 if (!func->serv_spec_info) {
10937 err = -ENOMEM;
10938 goto out;
10939 }
10940 }
10941
10942 if (tb[NL80211_NAN_FUNC_TTL])
10943 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
10944
10945 switch (func->type) {
10946 case NL80211_NAN_FUNC_PUBLISH:
10947 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
10948 err = -EINVAL;
10949 goto out;
10950 }
10951
10952 func->publish_type =
10953 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
10954 func->publish_bcast =
10955 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
10956
10957 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
10958 func->publish_bcast) {
10959 err = -EINVAL;
10960 goto out;
10961 }
10962 break;
10963 case NL80211_NAN_FUNC_SUBSCRIBE:
10964 func->subscribe_active =
10965 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
10966 break;
10967 case NL80211_NAN_FUNC_FOLLOW_UP:
10968 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
10969 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
10970 err = -EINVAL;
10971 goto out;
10972 }
10973
10974 func->followup_id =
10975 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
10976 func->followup_reqid =
10977 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
10978 memcpy(func->followup_dest.addr,
10979 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
10980 sizeof(func->followup_dest.addr));
10981 if (func->ttl) {
10982 err = -EINVAL;
10983 goto out;
10984 }
10985 break;
10986 default:
10987 err = -EINVAL;
10988 goto out;
10989 }
10990
10991 if (tb[NL80211_NAN_FUNC_SRF]) {
10992 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
10993
bfe2c7b1
JB		 10994 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
10995 tb[NL80211_NAN_FUNC_SRF],
fceb6435 10996 nl80211_nan_srf_policy, NULL);
a442b761
AB		 10997 if (err)
10998 goto out;
10999
11000 func->srf_include =
11001 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11002
11003 if (srf_tb[NL80211_NAN_SRF_BF]) {
11004 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11005 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11006 err = -EINVAL;
11007 goto out;
11008 }
11009
11010 func->srf_bf_len =
11011 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11012 func->srf_bf =
11013 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11014 func->srf_bf_len, GFP_KERNEL);
11015 if (!func->srf_bf) {
11016 err = -ENOMEM;
11017 goto out;
11018 }
11019
11020 func->srf_bf_idx =
11021 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11022 } else {
11023 struct nlattr *attr, *mac_attr =
11024 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11025 int n_entries, rem, i = 0;
11026
11027 if (!mac_attr) {
11028 err = -EINVAL;
11029 goto out;
11030 }
11031
11032 n_entries = validate_acl_mac_addrs(mac_attr);
11033 if (n_entries <= 0) {
11034 err = -EINVAL;
11035 goto out;
11036 }
11037
11038 func->srf_num_macs = n_entries;
11039 func->srf_macs =
11040 kzalloc(sizeof(*func->srf_macs) * n_entries,
11041 GFP_KERNEL);
11042 if (!func->srf_macs) {
11043 err = -ENOMEM;
11044 goto out;
11045 }
11046
11047 nla_for_each_nested(attr, mac_attr, rem)
11048 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11049 sizeof(*func->srf_macs));
11050 }
11051 }
11052
11053 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11054 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11055 func, true);
11056 if (err)
11057 goto out;
11058 }
11059
11060 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11061 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11062 func, false);
11063 if (err)
11064 goto out;
11065 }
11066
11067 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11068 if (!msg) {
11069 err = -ENOMEM;
11070 goto out;
11071 }
11072
11073 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11074 NL80211_CMD_ADD_NAN_FUNCTION);
11075 /* This can't really happen - we just allocated 4KB */
11076 if (WARN_ON(!hdr)) {
11077 err = -ENOMEM;
11078 goto out;
11079 }
11080
11081 err = rdev_add_nan_func(rdev, wdev, func);
11082out:
11083 if (err < 0) {
11084 cfg80211_free_nan_func(func);
11085 nlmsg_free(msg);
11086 return err;
11087 }
11088
11089 /* propagate the instance id and cookie to userspace */
11090 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11091 NL80211_ATTR_PAD))
11092 goto nla_put_failure;
11093
11094 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11095 if (!func_attr)
11096 goto nla_put_failure;
11097
11098 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11099 func->instance_id))
11100 goto nla_put_failure;
11101
11102 nla_nest_end(msg, func_attr);
11103
11104 genlmsg_end(msg, hdr);
11105 return genlmsg_reply(msg, info);
11106
11107nla_put_failure:
11108 nlmsg_free(msg);
11109 return -ENOBUFS;
11110}
11111
11112static int nl80211_nan_del_func(struct sk_buff *skb,
11113 struct genl_info *info)
11114{
11115 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11116 struct wireless_dev *wdev = info->user_ptr[1];
11117 u64 cookie;
11118
11119 if (wdev->iftype != NL80211_IFTYPE_NAN)
11120 return -EOPNOTSUPP;
11121
73c7da3d 11122 if (!wdev_running(wdev))
a442b761
AB		 11123 return -ENOTCONN;
11124
11125 if (!info->attrs[NL80211_ATTR_COOKIE])
11126 return -EINVAL;
11127
11128 if (wdev->owner_nlportid &&
11129 wdev->owner_nlportid != info->snd_portid)
11130 return -ENOTCONN;
11131
11132 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11133
11134 rdev_del_nan_func(rdev, wdev, cookie);
11135
11136 return 0;
11137}
11138
a5a9dcf2
AB		 11139static int nl80211_nan_change_config(struct sk_buff *skb,
11140 struct genl_info *info)
11141{
11142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11143 struct wireless_dev *wdev = info->user_ptr[1];
11144 struct cfg80211_nan_conf conf = {};
11145 u32 changed = 0;
11146
11147 if (wdev->iftype != NL80211_IFTYPE_NAN)
11148 return -EOPNOTSUPP;
11149
73c7da3d 11150 if (!wdev_running(wdev))
a5a9dcf2
AB		 11151 return -ENOTCONN;
11152
11153 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11154 conf.master_pref =
11155 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11156 if (conf.master_pref <= 1 || conf.master_pref == 255)
11157 return -EINVAL;
11158
11159 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11160 }
11161
8585989d
LC		 11162 if (info->attrs[NL80211_ATTR_BANDS]) {
11163 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11164
11165 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11166 return -EOPNOTSUPP;
11167
11168 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11169 return -EINVAL;
11170
11171 conf.bands = bands;
11172 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
a5a9dcf2
AB		 11173 }
11174
11175 if (!changed)
11176 return -EINVAL;
11177
11178 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11179}
11180
50bcd31d
AB		 11181void cfg80211_nan_match(struct wireless_dev *wdev,
11182 struct cfg80211_nan_match_params *match, gfp_t gfp)
11183{
11184 struct wiphy *wiphy = wdev->wiphy;
11185 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11186 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11187 struct sk_buff *msg;
11188 void *hdr;
11189
11190 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11191 return;
11192
11193 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11194 if (!msg)
11195 return;
11196
11197 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11198 if (!hdr) {
11199 nlmsg_free(msg);
11200 return;
11201 }
11202
11203 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11204 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11205 wdev->netdev->ifindex)) ||
11206 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11207 NL80211_ATTR_PAD))
11208 goto nla_put_failure;
11209
11210 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11211 NL80211_ATTR_PAD) ||
11212 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11213 goto nla_put_failure;
11214
11215 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11216 if (!match_attr)
11217 goto nla_put_failure;
11218
11219 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11220 if (!local_func_attr)
11221 goto nla_put_failure;
11222
11223 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11224 goto nla_put_failure;
11225
11226 nla_nest_end(msg, local_func_attr);
11227
11228 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11229 if (!peer_func_attr)
11230 goto nla_put_failure;
11231
11232 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11233 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11234 goto nla_put_failure;
11235
11236 if (match->info && match->info_len &&
11237 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11238 match->info))
11239 goto nla_put_failure;
11240
11241 nla_nest_end(msg, peer_func_attr);
11242 nla_nest_end(msg, match_attr);
11243 genlmsg_end(msg, hdr);
11244
11245 if (!wdev->owner_nlportid)
11246 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11247 msg, 0, NL80211_MCGRP_NAN, gfp);
11248 else
11249 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11250 wdev->owner_nlportid);
11251
11252 return;
11253
11254nla_put_failure:
11255 nlmsg_free(msg);
11256}
11257EXPORT_SYMBOL(cfg80211_nan_match);
11258
368e5a7b
AB		 11259void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11260 u8 inst_id,
11261 enum nl80211_nan_func_term_reason reason,
11262 u64 cookie, gfp_t gfp)
11263{
11264 struct wiphy *wiphy = wdev->wiphy;
11265 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11266 struct sk_buff *msg;
11267 struct nlattr *func_attr;
11268 void *hdr;
11269
11270 if (WARN_ON(!inst_id))
11271 return;
11272
11273 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11274 if (!msg)
11275 return;
11276
11277 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11278 if (!hdr) {
11279 nlmsg_free(msg);
11280 return;
11281 }
11282
11283 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11284 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11285 wdev->netdev->ifindex)) ||
11286 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11287 NL80211_ATTR_PAD))
11288 goto nla_put_failure;
11289
11290 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11291 NL80211_ATTR_PAD))
11292 goto nla_put_failure;
11293
11294 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11295 if (!func_attr)
11296 goto nla_put_failure;
11297
11298 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11299 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11300 goto nla_put_failure;
11301
11302 nla_nest_end(msg, func_attr);
11303 genlmsg_end(msg, hdr);
11304
11305 if (!wdev->owner_nlportid)
11306 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11307 msg, 0, NL80211_MCGRP_NAN, gfp);
11308 else
11309 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11310 wdev->owner_nlportid);
11311
11312 return;
11313
11314nla_put_failure:
11315 nlmsg_free(msg);
11316}
11317EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11318
3713b4e3
JB		 11319static int nl80211_get_protocol_features(struct sk_buff *skb,
11320 struct genl_info *info)
11321{
11322 void *hdr;
11323 struct sk_buff *msg;
11324
11325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11326 if (!msg)
11327 return -ENOMEM;
11328
11329 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11330 NL80211_CMD_GET_PROTOCOL_FEATURES);
11331 if (!hdr)
11332 goto nla_put_failure;
11333
11334 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11335 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11336 goto nla_put_failure;
11337
11338 genlmsg_end(msg, hdr);
11339 return genlmsg_reply(msg, info);
11340
11341 nla_put_failure:
11342 kfree_skb(msg);
11343 return -ENOBUFS;
11344}
11345
355199e0
JM		 11346static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11347{
11348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11349 struct cfg80211_update_ft_ies_params ft_params;
11350 struct net_device *dev = info->user_ptr[1];
11351
11352 if (!rdev->ops->update_ft_ies)
11353 return -EOPNOTSUPP;
11354
11355 if (!info->attrs[NL80211_ATTR_MDID] ||
11356 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11357 return -EINVAL;
11358
11359 memset(&ft_params, 0, sizeof(ft_params));
11360 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11361 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11362 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11363
11364 return rdev_update_ft_ies(rdev, dev, &ft_params);
11365}
11366
5de17984
AS		 11367static int nl80211_crit_protocol_start(struct sk_buff *skb,
11368 struct genl_info *info)
11369{
11370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11371 struct wireless_dev *wdev = info->user_ptr[1];
11372 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11373 u16 duration;
11374 int ret;
11375
11376 if (!rdev->ops->crit_proto_start)
11377 return -EOPNOTSUPP;
11378
11379 if (WARN_ON(!rdev->ops->crit_proto_stop))
11380 return -EINVAL;
11381
11382 if (rdev->crit_proto_nlportid)
11383 return -EBUSY;
11384
11385 /* determine protocol if provided */
11386 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11387 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11388
11389 if (proto >= NUM_NL80211_CRIT_PROTO)
11390 return -EINVAL;
11391
11392 /* timeout must be provided */
11393 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11394 return -EINVAL;
11395
11396 duration =
11397 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11398
11399 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11400 return -ERANGE;
11401
11402 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11403 if (!ret)
11404 rdev->crit_proto_nlportid = info->snd_portid;
11405
11406 return ret;
11407}
11408
11409static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11410 struct genl_info *info)
11411{
11412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11413 struct wireless_dev *wdev = info->user_ptr[1];
11414
11415 if (!rdev->ops->crit_proto_stop)
11416 return -EOPNOTSUPP;
11417
11418 if (rdev->crit_proto_nlportid) {
11419 rdev->crit_proto_nlportid = 0;
11420 rdev_crit_proto_stop(rdev, wdev);
11421 }
11422 return 0;
11423}
11424
ad7e718c
JB		 11425static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11426{
11427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11428 struct wireless_dev *wdev =
11429 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11430 int i, err;
11431 u32 vid, subcmd;
11432
11433 if (!rdev->wiphy.vendor_commands)
11434 return -EOPNOTSUPP;
11435
11436 if (IS_ERR(wdev)) {
11437 err = PTR_ERR(wdev);
11438 if (err != -EINVAL)
11439 return err;
11440 wdev = NULL;
11441 } else if (wdev->wiphy != &rdev->wiphy) {
11442 return -EINVAL;
11443 }
11444
11445 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11446 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11447 return -EINVAL;
11448
11449 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11450 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11451 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11452 const struct wiphy_vendor_command *vcmd;
11453 void *data = NULL;
11454 int len = 0;
11455
11456 vcmd = &rdev->wiphy.vendor_commands[i];
11457
11458 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11459 continue;
11460
11461 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11462 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11463 if (!wdev)
11464 return -EINVAL;
11465 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11466 !wdev->netdev)
11467 return -EINVAL;
11468
11469 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11470 if (!wdev_running(wdev))
ad7e718c
JB		 11471 return -ENETDOWN;
11472 }
7bdbe400
JB		 11473
11474 if (!vcmd->doit)
11475 return -EOPNOTSUPP;
ad7e718c
JB		 11476 } else {
11477 wdev = NULL;
11478 }
11479
11480 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11481 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11482 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11483 }
11484
11485 rdev->cur_cmd_info = info;
11486 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11487 data, len);
11488 rdev->cur_cmd_info = NULL;
11489 return err;
11490 }
11491
11492 return -EOPNOTSUPP;
11493}
11494
7bdbe400
JB		 11495static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11496 struct netlink_callback *cb,
11497 struct cfg80211_registered_device **rdev,
11498 struct wireless_dev **wdev)
11499{
c90c39da 11500 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7bdbe400
JB		 11501 u32 vid, subcmd;
11502 unsigned int i;
11503 int vcmd_idx = -1;
11504 int err;
11505 void *data = NULL;
11506 unsigned int data_len = 0;
11507
7bdbe400
JB		 11508 if (cb->args[0]) {
11509 /* subtract the 1 again here */
11510 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11511 struct wireless_dev *tmp;
11512
ea90e0dc
JB		 11513 if (!wiphy)
11514 return -ENODEV;
7bdbe400
JB		 11515 *rdev = wiphy_to_rdev(wiphy);
11516 *wdev = NULL;
11517
11518 if (cb->args[1]) {
53873f13 11519 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11520 if (tmp->identifier == cb->args[1] - 1) {
11521 *wdev = tmp;
11522 break;
11523 }
11524 }
11525 }
11526
11527 /* keep rtnl locked in successful case */
11528 return 0;
11529 }
11530
fceb6435
JB		 11531 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
11532 nl80211_fam.maxattr, nl80211_policy, NULL);
7bdbe400 11533 if (err)
ea90e0dc 11534 return err;
7bdbe400 11535
c90c39da 11536 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
ea90e0dc
JB		 11537 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11538 return -EINVAL;
7bdbe400 11539
c90c39da 11540 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11541 if (IS_ERR(*wdev))
11542 *wdev = NULL;
11543
c90c39da 11544 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
ea90e0dc
JB		 11545 if (IS_ERR(*rdev))
11546 return PTR_ERR(*rdev);
7bdbe400 11547
c90c39da
JB		 11548 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11549 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
7bdbe400
JB		 11550
11551 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11552 const struct wiphy_vendor_command *vcmd;
11553
11554 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11555
11556 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11557 continue;
11558
ea90e0dc
JB		 11559 if (!vcmd->dumpit)
11560 return -EOPNOTSUPP;
7bdbe400
JB		 11561
11562 vcmd_idx = i;
11563 break;
11564 }
11565
ea90e0dc
JB		 11566 if (vcmd_idx < 0)
11567 return -EOPNOTSUPP;
7bdbe400 11568
c90c39da
JB		 11569 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11570 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11571 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
7bdbe400
JB		 11572 }
11573
11574 /* 0 is the first index - add 1 to parse only once */
11575 cb->args[0] = (*rdev)->wiphy_idx + 1;
11576 /* add 1 to know if it was NULL */
11577 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11578 cb->args[2] = vcmd_idx;
11579 cb->args[3] = (unsigned long)data;
11580 cb->args[4] = data_len;
11581
11582 /* keep rtnl locked in successful case */
11583 return 0;
7bdbe400
JB		 11584}
11585
11586static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11587 struct netlink_callback *cb)
11588{
11589 struct cfg80211_registered_device *rdev;
11590 struct wireless_dev *wdev;
11591 unsigned int vcmd_idx;
11592 const struct wiphy_vendor_command *vcmd;
11593 void *data;
11594 int data_len;
11595 int err;
11596 struct nlattr *vendor_data;
11597
ea90e0dc 11598 rtnl_lock();
7bdbe400
JB		 11599 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11600 if (err)
ea90e0dc 11601 goto out;
7bdbe400
JB		 11602
11603 vcmd_idx = cb->args[2];
11604 data = (void *)cb->args[3];
11605 data_len = cb->args[4];
11606 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11607
11608 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11609 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
ea90e0dc
JB		 11610 if (!wdev) {
11611 err = -EINVAL;
11612 goto out;
11613 }
7bdbe400 11614 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
ea90e0dc
JB		 11615 !wdev->netdev) {
11616 err = -EINVAL;
11617 goto out;
11618 }
7bdbe400
JB		 11619
11620 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
ea90e0dc
JB		 11621 if (!wdev_running(wdev)) {
11622 err = -ENETDOWN;
11623 goto out;
11624 }
7bdbe400
JB		 11625 }
11626 }
11627
11628 while (1) {
11629 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11630 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11631 NL80211_CMD_VENDOR);
11632 if (!hdr)
11633 break;
11634
11635 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 11636 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11637 wdev_id(wdev),
11638 NL80211_ATTR_PAD))) {
7bdbe400
JB		 11639 genlmsg_cancel(skb, hdr);
11640 break;
11641 }
11642
11643 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11644 if (!vendor_data) {
11645 genlmsg_cancel(skb, hdr);
11646 break;
11647 }
11648
11649 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11650 (unsigned long *)&cb->args[5]);
11651 nla_nest_end(skb, vendor_data);
11652
11653 if (err == -ENOBUFS || err == -ENOENT) {
11654 genlmsg_cancel(skb, hdr);
11655 break;
11656 } else if (err) {
11657 genlmsg_cancel(skb, hdr);
11658 goto out;
11659 }
11660
11661 genlmsg_end(skb, hdr);
11662 }
11663
11664 err = skb->len;
11665 out:
11666 rtnl_unlock();
11667 return err;
11668}
11669
ad7e718c
JB		 11670struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11671 enum nl80211_commands cmd,
11672 enum nl80211_attrs attr,
11673 int approxlen)
11674{
f26cbf40 11675 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 11676
11677 if (WARN_ON(!rdev->cur_cmd_info))
11678 return NULL;
11679
6c09e791 11680 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 11681 rdev->cur_cmd_info->snd_portid,
11682 rdev->cur_cmd_info->snd_seq,
567ffc35 11683 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 11684}
11685EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
11686
11687int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
11688{
11689 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
11690 void *hdr = ((void **)skb->cb)[1];
11691 struct nlattr *data = ((void **)skb->cb)[2];
11692
bd8c78e7
JB		 11693 /* clear CB data for netlink core to own from now on */
11694 memset(skb->cb, 0, sizeof(skb->cb));
11695
ad7e718c
JB		 11696 if (WARN_ON(!rdev->cur_cmd_info)) {
11697 kfree_skb(skb);
11698 return -EINVAL;
11699 }
11700
11701 nla_nest_end(skb, data);
11702 genlmsg_end(skb, hdr);
11703 return genlmsg_reply(skb, rdev->cur_cmd_info);
11704}
11705EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
11706
fa9ffc74
KP		 11707static int nl80211_set_qos_map(struct sk_buff *skb,
11708 struct genl_info *info)
11709{
11710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11711 struct cfg80211_qos_map *qos_map = NULL;
11712 struct net_device *dev = info->user_ptr[1];
11713 u8 *pos, len, num_des, des_len, des;
11714 int ret;
11715
11716 if (!rdev->ops->set_qos_map)
11717 return -EOPNOTSUPP;
11718
11719 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
11720 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
11721 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
11722
11723 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
11724 len > IEEE80211_QOS_MAP_LEN_MAX)
11725 return -EINVAL;
11726
11727 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
11728 if (!qos_map)
11729 return -ENOMEM;
11730
11731 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
11732 if (num_des) {
11733 des_len = num_des *
11734 sizeof(struct cfg80211_dscp_exception);
11735 memcpy(qos_map->dscp_exception, pos, des_len);
11736 qos_map->num_des = num_des;
11737 for (des = 0; des < num_des; des++) {
11738 if (qos_map->dscp_exception[des].up > 7) {
11739 kfree(qos_map);
11740 return -EINVAL;
11741 }
11742 }
11743 pos += des_len;
11744 }
11745 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
11746 }
11747
11748 wdev_lock(dev->ieee80211_ptr);
11749 ret = nl80211_key_allowed(dev->ieee80211_ptr);
11750 if (!ret)
11751 ret = rdev_set_qos_map(rdev, dev, qos_map);
11752 wdev_unlock(dev->ieee80211_ptr);
11753
11754 kfree(qos_map);
11755 return ret;
11756}
11757
960d01ac
JB		 11758static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
11759{
11760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11761 struct net_device *dev = info->user_ptr[1];
11762 struct wireless_dev *wdev = dev->ieee80211_ptr;
11763 const u8 *peer;
11764 u8 tsid, up;
11765 u16 admitted_time = 0;
11766 int err;
11767
723e73ac 11768 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 11769 return -EOPNOTSUPP;
11770
11771 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
11772 !info->attrs[NL80211_ATTR_USER_PRIO])
11773 return -EINVAL;
11774
11775 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11776 if (tsid >= IEEE80211_NUM_TIDS)
11777 return -EINVAL;
11778
11779 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
11780 if (up >= IEEE80211_NUM_UPS)
11781 return -EINVAL;
11782
11783 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 11784 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 11785 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 11786 * need more attributes for that (e.g. BA session requirement);
11787 * change the WMM adminssion test above to allow both then
960d01ac
JB		 11788 */
11789 return -EINVAL;
11790 }
11791
11792 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11793
11794 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
11795 admitted_time =
11796 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11797 if (!admitted_time)
11798 return -EINVAL;
11799 }
11800
11801 wdev_lock(wdev);
11802 switch (wdev->iftype) {
11803 case NL80211_IFTYPE_STATION:
11804 case NL80211_IFTYPE_P2P_CLIENT:
11805 if (wdev->current_bss)
11806 break;
11807 err = -ENOTCONN;
11808 goto out;
11809 default:
11810 err = -EOPNOTSUPP;
11811 goto out;
11812 }
11813
11814 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11815
11816 out:
11817 wdev_unlock(wdev);
11818 return err;
11819}
11820
11821static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11822{
11823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11824 struct net_device *dev = info->user_ptr[1];
11825 struct wireless_dev *wdev = dev->ieee80211_ptr;
11826 const u8 *peer;
11827 u8 tsid;
11828 int err;
11829
11830 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11831 return -EINVAL;
11832
11833 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11834 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11835
11836 wdev_lock(wdev);
11837 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
11838 wdev_unlock(wdev);
11839
11840 return err;
11841}
11842
1057d35e
AN		 11843static int nl80211_tdls_channel_switch(struct sk_buff *skb,
11844 struct genl_info *info)
11845{
11846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11847 struct net_device *dev = info->user_ptr[1];
11848 struct wireless_dev *wdev = dev->ieee80211_ptr;
11849 struct cfg80211_chan_def chandef = {};
11850 const u8 *addr;
11851 u8 oper_class;
11852 int err;
11853
11854 if (!rdev->ops->tdls_channel_switch ||
11855 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11856 return -EOPNOTSUPP;
11857
11858 switch (dev->ieee80211_ptr->iftype) {
11859 case NL80211_IFTYPE_STATION:
11860 case NL80211_IFTYPE_P2P_CLIENT:
11861 break;
11862 default:
11863 return -EOPNOTSUPP;
11864 }
11865
11866 if (!info->attrs[NL80211_ATTR_MAC] ||
11867 !info->attrs[NL80211_ATTR_OPER_CLASS])
11868 return -EINVAL;
11869
11870 err = nl80211_parse_chandef(rdev, info, &chandef);
11871 if (err)
11872 return err;
11873
11874 /*
11875 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
11876 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
11877 * specification is not defined for them.
11878 */
57fbcce3 11879 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 11880 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
11881 chandef.width != NL80211_CHAN_WIDTH_20)
11882 return -EINVAL;
11883
11884 /* we will be active on the TDLS link */
923b352f
AN		 11885 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11886 wdev->iftype))
1057d35e
AN		 11887 return -EINVAL;
11888
11889 /* don't allow switching to DFS channels */
11890 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11891 return -EINVAL;
11892
11893 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11894 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11895
11896 wdev_lock(wdev);
11897 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11898 wdev_unlock(wdev);
11899
11900 return err;
11901}
11902
11903static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11904 struct genl_info *info)
11905{
11906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11907 struct net_device *dev = info->user_ptr[1];
11908 struct wireless_dev *wdev = dev->ieee80211_ptr;
11909 const u8 *addr;
11910
11911 if (!rdev->ops->tdls_channel_switch ||
11912 !rdev->ops->tdls_cancel_channel_switch ||
11913 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11914 return -EOPNOTSUPP;
11915
11916 switch (dev->ieee80211_ptr->iftype) {
11917 case NL80211_IFTYPE_STATION:
11918 case NL80211_IFTYPE_P2P_CLIENT:
11919 break;
11920 default:
11921 return -EOPNOTSUPP;
11922 }
11923
11924 if (!info->attrs[NL80211_ATTR_MAC])
11925 return -EINVAL;
11926
11927 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11928
11929 wdev_lock(wdev);
11930 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11931 wdev_unlock(wdev);
11932
11933 return 0;
11934}
11935
ce0ce13a
MB		 11936static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
11937 struct genl_info *info)
11938{
11939 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11940 struct net_device *dev = info->user_ptr[1];
11941 struct wireless_dev *wdev = dev->ieee80211_ptr;
11942 const struct nlattr *nla;
11943 bool enabled;
11944
ce0ce13a
MB		 11945 if (!rdev->ops->set_multicast_to_unicast)
11946 return -EOPNOTSUPP;
11947
11948 if (wdev->iftype != NL80211_IFTYPE_AP &&
11949 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11950 return -EOPNOTSUPP;
11951
11952 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
11953 enabled = nla_get_flag(nla);
11954
11955 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
11956}
11957
4c476991
JB		 11958#define NL80211_FLAG_NEED_WIPHY 0x01
11959#define NL80211_FLAG_NEED_NETDEV 0x02
11960#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 11961#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11962#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11963 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 11964#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 11965/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 11966#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11967 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11968#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11969
f84f771d 11970static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11971 struct genl_info *info)
11972{
11973 struct cfg80211_registered_device *rdev;
89a54e48 11974 struct wireless_dev *wdev;
4c476991 11975 struct net_device *dev;
4c476991
JB		 11976 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11977
11978 if (rtnl)
11979 rtnl_lock();
11980
11981 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11982 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11983 if (IS_ERR(rdev)) {
11984 if (rtnl)
11985 rtnl_unlock();
11986 return PTR_ERR(rdev);
11987 }
11988 info->user_ptr[0] = rdev;
1bf614ef
JB		 11989 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11990 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11991 ASSERT_RTNL();
11992
89a54e48
JB		 11993 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11994 info->attrs);
11995 if (IS_ERR(wdev)) {
4c476991
JB		 11996 if (rtnl)
11997 rtnl_unlock();
89a54e48 11998 return PTR_ERR(wdev);
4c476991 11999 }
89a54e48 12000
89a54e48 12001 dev = wdev->netdev;
f26cbf40 12002 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 12003
1bf614ef
JB		 12004 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12005 if (!dev) {
1bf614ef
JB		 12006 if (rtnl)
12007 rtnl_unlock();
12008 return -EINVAL;
12009 }
12010
12011 info->user_ptr[1] = dev;
12012 } else {
12013 info->user_ptr[1] = wdev;
41265714 12014 }
1bf614ef 12015
73c7da3d
AVS		 12016 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12017 !wdev_running(wdev)) {
12018 if (rtnl)
12019 rtnl_unlock();
12020 return -ENETDOWN;
12021 }
1bf614ef 12022
73c7da3d 12023 if (dev)
1bf614ef 12024 dev_hold(dev);
89a54e48 12025
4c476991 12026 info->user_ptr[0] = rdev;
4c476991
JB		 12027 }
12028
12029 return 0;
12030}
12031
f84f771d 12032static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12033 struct genl_info *info)
12034{
1bf614ef
JB		 12035 if (info->user_ptr[1]) {
12036 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12037 struct wireless_dev *wdev = info->user_ptr[1];
12038
12039 if (wdev->netdev)
12040 dev_put(wdev->netdev);
12041 } else {
12042 dev_put(info->user_ptr[1]);
12043 }
12044 }
5393b917 12045
4c476991
JB		 12046 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12047 rtnl_unlock();
5393b917
JB		 12048
12049 /* If needed, clear the netlink message payload from the SKB
12050 * as it might contain key data that shouldn't stick around on
12051 * the heap after the SKB is freed. The netlink message header
12052 * is still needed for further processing, so leave it intact.
12053 */
12054 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12055 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12056
12057 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12058 }
4c476991
JB		 12059}
12060
4534de83 12061static const struct genl_ops nl80211_ops[] = {
55682965
JB		 12062 {
12063 .cmd = NL80211_CMD_GET_WIPHY,
12064 .doit = nl80211_get_wiphy,
12065 .dumpit = nl80211_dump_wiphy,
86e8cf98 12066 .done = nl80211_dump_wiphy_done,
55682965
JB		 12067 .policy = nl80211_policy,
12068 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12069 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12070 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12071 },
12072 {
12073 .cmd = NL80211_CMD_SET_WIPHY,
12074 .doit = nl80211_set_wiphy,
12075 .policy = nl80211_policy,
5617c6cd 12076 .flags = GENL_UNS_ADMIN_PERM,
4c476991 12077 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 12078 },
12079 {
12080 .cmd = NL80211_CMD_GET_INTERFACE,
12081 .doit = nl80211_get_interface,
12082 .dumpit = nl80211_dump_interface,
12083 .policy = nl80211_policy,
12084 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12085 .internal_flags = NL80211_FLAG_NEED_WDEV |
12086 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12087 },
12088 {
12089 .cmd = NL80211_CMD_SET_INTERFACE,
12090 .doit = nl80211_set_interface,
12091 .policy = nl80211_policy,
5617c6cd 12092 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12093 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12094 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12095 },
12096 {
12097 .cmd = NL80211_CMD_NEW_INTERFACE,
12098 .doit = nl80211_new_interface,
12099 .policy = nl80211_policy,
5617c6cd 12100 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12101 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12102 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12103 },
12104 {
12105 .cmd = NL80211_CMD_DEL_INTERFACE,
12106 .doit = nl80211_del_interface,
12107 .policy = nl80211_policy,
5617c6cd 12108 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 12109 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12110 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12111 },
12112 {
12113 .cmd = NL80211_CMD_GET_KEY,
12114 .doit = nl80211_get_key,
12115 .policy = nl80211_policy,
5617c6cd 12116 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12118 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12119 },
12120 {
12121 .cmd = NL80211_CMD_SET_KEY,
12122 .doit = nl80211_set_key,
12123 .policy = nl80211_policy,
5617c6cd 12124 .flags = GENL_UNS_ADMIN_PERM,
41265714 12125 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12126 NL80211_FLAG_NEED_RTNL |
12127 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12128 },
12129 {
12130 .cmd = NL80211_CMD_NEW_KEY,
12131 .doit = nl80211_new_key,
12132 .policy = nl80211_policy,
5617c6cd 12133 .flags = GENL_UNS_ADMIN_PERM,
41265714 12134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12135 NL80211_FLAG_NEED_RTNL |
12136 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12137 },
12138 {
12139 .cmd = NL80211_CMD_DEL_KEY,
12140 .doit = nl80211_del_key,
12141 .policy = nl80211_policy,
5617c6cd 12142 .flags = GENL_UNS_ADMIN_PERM,
41265714 12143 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12144 NL80211_FLAG_NEED_RTNL,
55682965 12145 },
ed1b6cc7
JB		 12146 {
12147 .cmd = NL80211_CMD_SET_BEACON,
12148 .policy = nl80211_policy,
5617c6cd 12149 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12150 .doit = nl80211_set_beacon,
2b5f8b0b 12151 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12152 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12153 },
12154 {
8860020e 12155 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 12156 .policy = nl80211_policy,
5617c6cd 12157 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12158 .doit = nl80211_start_ap,
2b5f8b0b 12159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12160 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12161 },
12162 {
8860020e 12163 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 12164 .policy = nl80211_policy,
5617c6cd 12165 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12166 .doit = nl80211_stop_ap,
2b5f8b0b 12167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12168 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 12169 },
5727ef1b
JB		 12170 {
12171 .cmd = NL80211_CMD_GET_STATION,
12172 .doit = nl80211_get_station,
2ec600d6 12173 .dumpit = nl80211_dump_station,
5727ef1b 12174 .policy = nl80211_policy,
4c476991
JB		 12175 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12176 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12177 },
12178 {
12179 .cmd = NL80211_CMD_SET_STATION,
12180 .doit = nl80211_set_station,
12181 .policy = nl80211_policy,
5617c6cd 12182 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12184 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12185 },
12186 {
12187 .cmd = NL80211_CMD_NEW_STATION,
12188 .doit = nl80211_new_station,
12189 .policy = nl80211_policy,
5617c6cd 12190 .flags = GENL_UNS_ADMIN_PERM,
41265714 12191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12192 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12193 },
12194 {
12195 .cmd = NL80211_CMD_DEL_STATION,
12196 .doit = nl80211_del_station,
12197 .policy = nl80211_policy,
5617c6cd 12198 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12200 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12201 },
12202 {
12203 .cmd = NL80211_CMD_GET_MPATH,
12204 .doit = nl80211_get_mpath,
12205 .dumpit = nl80211_dump_mpath,
12206 .policy = nl80211_policy,
5617c6cd 12207 .flags = GENL_UNS_ADMIN_PERM,
41265714 12208 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12209 NL80211_FLAG_NEED_RTNL,
2ec600d6 12210 },
66be7d2b
HR		 12211 {
12212 .cmd = NL80211_CMD_GET_MPP,
12213 .doit = nl80211_get_mpp,
12214 .dumpit = nl80211_dump_mpp,
12215 .policy = nl80211_policy,
5617c6cd 12216 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 12217 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12218 NL80211_FLAG_NEED_RTNL,
12219 },
2ec600d6
LCC		 12220 {
12221 .cmd = NL80211_CMD_SET_MPATH,
12222 .doit = nl80211_set_mpath,
12223 .policy = nl80211_policy,
5617c6cd 12224 .flags = GENL_UNS_ADMIN_PERM,
41265714 12225 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12226 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12227 },
12228 {
12229 .cmd = NL80211_CMD_NEW_MPATH,
12230 .doit = nl80211_new_mpath,
12231 .policy = nl80211_policy,
5617c6cd 12232 .flags = GENL_UNS_ADMIN_PERM,
41265714 12233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12234 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12235 },
12236 {
12237 .cmd = NL80211_CMD_DEL_MPATH,
12238 .doit = nl80211_del_mpath,
12239 .policy = nl80211_policy,
5617c6cd 12240 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12241 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12242 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12243 },
12244 {
12245 .cmd = NL80211_CMD_SET_BSS,
12246 .doit = nl80211_set_bss,
12247 .policy = nl80211_policy,
5617c6cd 12248 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12249 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12250 NL80211_FLAG_NEED_RTNL,
b2e1b302 12251 },
f130347c
LR		 12252 {
12253 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12254 .doit = nl80211_get_reg_do,
12255 .dumpit = nl80211_get_reg_dump,
f130347c 12256 .policy = nl80211_policy,
5fe231e8 12257 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12258 /* can be retrieved by unprivileged users */
12259 },
b6863036 12260#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12261 {
12262 .cmd = NL80211_CMD_SET_REG,
12263 .doit = nl80211_set_reg,
12264 .policy = nl80211_policy,
12265 .flags = GENL_ADMIN_PERM,
5fe231e8 12266 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12267 },
b6863036 12268#endif
b2e1b302
LR		 12269 {
12270 .cmd = NL80211_CMD_REQ_SET_REG,
12271 .doit = nl80211_req_set_reg,
12272 .policy = nl80211_policy,
93da9cc1 12273 .flags = GENL_ADMIN_PERM,
12274 },
12275 {
24bdd9f4
JC		 12276 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12277 .doit = nl80211_get_mesh_config,
93da9cc1 12278 .policy = nl80211_policy,
12279 /* can be retrieved by unprivileged users */
2b5f8b0b 12280 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12281 NL80211_FLAG_NEED_RTNL,
93da9cc1 12282 },
12283 {
24bdd9f4
JC		 12284 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12285 .doit = nl80211_update_mesh_config,
93da9cc1 12286 .policy = nl80211_policy,
5617c6cd 12287 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12289 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12290 },
2a519311
JB		 12291 {
12292 .cmd = NL80211_CMD_TRIGGER_SCAN,
12293 .doit = nl80211_trigger_scan,
12294 .policy = nl80211_policy,
5617c6cd 12295 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12296 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12297 NL80211_FLAG_NEED_RTNL,
2a519311 12298 },
91d3ab46
VK		 12299 {
12300 .cmd = NL80211_CMD_ABORT_SCAN,
12301 .doit = nl80211_abort_scan,
12302 .policy = nl80211_policy,
5617c6cd 12303 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12304 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12305 NL80211_FLAG_NEED_RTNL,
12306 },
2a519311
JB		 12307 {
12308 .cmd = NL80211_CMD_GET_SCAN,
12309 .policy = nl80211_policy,
12310 .dumpit = nl80211_dump_scan,
12311 },
807f8a8c
LC		 12312 {
12313 .cmd = NL80211_CMD_START_SCHED_SCAN,
12314 .doit = nl80211_start_sched_scan,
12315 .policy = nl80211_policy,
5617c6cd 12316 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12317 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12318 NL80211_FLAG_NEED_RTNL,
12319 },
12320 {
12321 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12322 .doit = nl80211_stop_sched_scan,
12323 .policy = nl80211_policy,
5617c6cd 12324 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12325 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12326 NL80211_FLAG_NEED_RTNL,
12327 },
636a5d36
JM		 12328 {
12329 .cmd = NL80211_CMD_AUTHENTICATE,
12330 .doit = nl80211_authenticate,
12331 .policy = nl80211_policy,
5617c6cd 12332 .flags = GENL_UNS_ADMIN_PERM,
41265714 12333 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12334 NL80211_FLAG_NEED_RTNL |
12335 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12336 },
12337 {
12338 .cmd = NL80211_CMD_ASSOCIATE,
12339 .doit = nl80211_associate,
12340 .policy = nl80211_policy,
5617c6cd 12341 .flags = GENL_UNS_ADMIN_PERM,
41265714 12342 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12343 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12344 },
12345 {
12346 .cmd = NL80211_CMD_DEAUTHENTICATE,
12347 .doit = nl80211_deauthenticate,
12348 .policy = nl80211_policy,
5617c6cd 12349 .flags = GENL_UNS_ADMIN_PERM,
41265714 12350 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12351 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12352 },
12353 {
12354 .cmd = NL80211_CMD_DISASSOCIATE,
12355 .doit = nl80211_disassociate,
12356 .policy = nl80211_policy,
5617c6cd 12357 .flags = GENL_UNS_ADMIN_PERM,
41265714 12358 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12359 NL80211_FLAG_NEED_RTNL,
636a5d36 12360 },
04a773ad
JB		 12361 {
12362 .cmd = NL80211_CMD_JOIN_IBSS,
12363 .doit = nl80211_join_ibss,
12364 .policy = nl80211_policy,
5617c6cd 12365 .flags = GENL_UNS_ADMIN_PERM,
41265714 12366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12367 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12368 },
12369 {
12370 .cmd = NL80211_CMD_LEAVE_IBSS,
12371 .doit = nl80211_leave_ibss,
12372 .policy = nl80211_policy,
5617c6cd 12373 .flags = GENL_UNS_ADMIN_PERM,
41265714 12374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12375 NL80211_FLAG_NEED_RTNL,
04a773ad 12376 },
aff89a9b
JB		 12377#ifdef CONFIG_NL80211_TESTMODE
12378 {
12379 .cmd = NL80211_CMD_TESTMODE,
12380 .doit = nl80211_testmode_do,
71063f0e 12381 .dumpit = nl80211_testmode_dump,
aff89a9b 12382 .policy = nl80211_policy,
5617c6cd 12383 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12384 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12385 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12386 },
12387#endif
b23aa676
SO		 12388 {
12389 .cmd = NL80211_CMD_CONNECT,
12390 .doit = nl80211_connect,
12391 .policy = nl80211_policy,
5617c6cd 12392 .flags = GENL_UNS_ADMIN_PERM,
41265714 12393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12394 NL80211_FLAG_NEED_RTNL,
b23aa676 12395 },
088e8df8 12396 {
12397 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12398 .doit = nl80211_update_connect_params,
12399 .policy = nl80211_policy,
12400 .flags = GENL_ADMIN_PERM,
12401 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12402 NL80211_FLAG_NEED_RTNL,
12403 },
b23aa676
SO		 12404 {
12405 .cmd = NL80211_CMD_DISCONNECT,
12406 .doit = nl80211_disconnect,
12407 .policy = nl80211_policy,
5617c6cd 12408 .flags = GENL_UNS_ADMIN_PERM,
41265714 12409 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12410 NL80211_FLAG_NEED_RTNL,
b23aa676 12411 },
463d0183
JB		 12412 {
12413 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12414 .doit = nl80211_wiphy_netns,
12415 .policy = nl80211_policy,
5617c6cd 12416 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12417 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12418 NL80211_FLAG_NEED_RTNL,
463d0183 12419 },
61fa713c
HS		 12420 {
12421 .cmd = NL80211_CMD_GET_SURVEY,
12422 .policy = nl80211_policy,
12423 .dumpit = nl80211_dump_survey,
12424 },
67fbb16b
SO		 12425 {
12426 .cmd = NL80211_CMD_SET_PMKSA,
12427 .doit = nl80211_setdel_pmksa,
12428 .policy = nl80211_policy,
5617c6cd 12429 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12430 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12431 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12432 },
12433 {
12434 .cmd = NL80211_CMD_DEL_PMKSA,
12435 .doit = nl80211_setdel_pmksa,
12436 .policy = nl80211_policy,
5617c6cd 12437 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12438 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12439 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12440 },
12441 {
12442 .cmd = NL80211_CMD_FLUSH_PMKSA,
12443 .doit = nl80211_flush_pmksa,
12444 .policy = nl80211_policy,
5617c6cd 12445 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12446 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12447 NL80211_FLAG_NEED_RTNL,
67fbb16b 12448 },
9588bbd5
JM		 12449 {
12450 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12451 .doit = nl80211_remain_on_channel,
12452 .policy = nl80211_policy,
5617c6cd 12453 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12454 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12455 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 12456 },
12457 {
12458 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12459 .doit = nl80211_cancel_remain_on_channel,
12460 .policy = nl80211_policy,
5617c6cd 12461 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12462 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12463 NL80211_FLAG_NEED_RTNL,
9588bbd5 12464 },
13ae75b1
JM		 12465 {
12466 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12467 .doit = nl80211_set_tx_bitrate_mask,
12468 .policy = nl80211_policy,
5617c6cd 12469 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12470 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12471 NL80211_FLAG_NEED_RTNL,
13ae75b1 12472 },
026331c4 12473 {
2e161f78
JB		 12474 .cmd = NL80211_CMD_REGISTER_FRAME,
12475 .doit = nl80211_register_mgmt,
026331c4 12476 .policy = nl80211_policy,
5617c6cd 12477 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12478 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12479 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12480 },
12481 {
2e161f78
JB		 12482 .cmd = NL80211_CMD_FRAME,
12483 .doit = nl80211_tx_mgmt,
026331c4 12484 .policy = nl80211_policy,
5617c6cd 12485 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12486 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12487 NL80211_FLAG_NEED_RTNL,
12488 },
12489 {
12490 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12491 .doit = nl80211_tx_mgmt_cancel_wait,
12492 .policy = nl80211_policy,
5617c6cd 12493 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12494 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12495 NL80211_FLAG_NEED_RTNL,
026331c4 12496 },
ffb9eb3d
KV		 12497 {
12498 .cmd = NL80211_CMD_SET_POWER_SAVE,
12499 .doit = nl80211_set_power_save,
12500 .policy = nl80211_policy,
5617c6cd 12501 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12502 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12503 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 12504 },
12505 {
12506 .cmd = NL80211_CMD_GET_POWER_SAVE,
12507 .doit = nl80211_get_power_save,
12508 .policy = nl80211_policy,
12509 /* can be retrieved by unprivileged users */
4c476991
JB		 12510 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12511 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 12512 },
d6dc1a38
JO		 12513 {
12514 .cmd = NL80211_CMD_SET_CQM,
12515 .doit = nl80211_set_cqm,
12516 .policy = nl80211_policy,
5617c6cd 12517 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12518 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12519 NL80211_FLAG_NEED_RTNL,
d6dc1a38 12520 },
f444de05
JB		 12521 {
12522 .cmd = NL80211_CMD_SET_CHANNEL,
12523 .doit = nl80211_set_channel,
12524 .policy = nl80211_policy,
5617c6cd 12525 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12526 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12527 NL80211_FLAG_NEED_RTNL,
f444de05 12528 },
e8347eba
BJ		 12529 {
12530 .cmd = NL80211_CMD_SET_WDS_PEER,
12531 .doit = nl80211_set_wds_peer,
12532 .policy = nl80211_policy,
5617c6cd 12533 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 12534 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12535 NL80211_FLAG_NEED_RTNL,
e8347eba 12536 },
29cbe68c
JB		 12537 {
12538 .cmd = NL80211_CMD_JOIN_MESH,
12539 .doit = nl80211_join_mesh,
12540 .policy = nl80211_policy,
5617c6cd 12541 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12543 NL80211_FLAG_NEED_RTNL,
12544 },
12545 {
12546 .cmd = NL80211_CMD_LEAVE_MESH,
12547 .doit = nl80211_leave_mesh,
12548 .policy = nl80211_policy,
5617c6cd 12549 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12551 NL80211_FLAG_NEED_RTNL,
12552 },
6e0bd6c3
RL		 12553 {
12554 .cmd = NL80211_CMD_JOIN_OCB,
12555 .doit = nl80211_join_ocb,
12556 .policy = nl80211_policy,
5617c6cd 12557 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12558 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12559 NL80211_FLAG_NEED_RTNL,
12560 },
12561 {
12562 .cmd = NL80211_CMD_LEAVE_OCB,
12563 .doit = nl80211_leave_ocb,
12564 .policy = nl80211_policy,
5617c6cd 12565 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12567 NL80211_FLAG_NEED_RTNL,
12568 },
dfb89c56 12569#ifdef CONFIG_PM
ff1b6e69
JB		 12570 {
12571 .cmd = NL80211_CMD_GET_WOWLAN,
12572 .doit = nl80211_get_wowlan,
12573 .policy = nl80211_policy,
12574 /* can be retrieved by unprivileged users */
12575 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12576 NL80211_FLAG_NEED_RTNL,
12577 },
12578 {
12579 .cmd = NL80211_CMD_SET_WOWLAN,
12580 .doit = nl80211_set_wowlan,
12581 .policy = nl80211_policy,
5617c6cd 12582 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 12583 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12584 NL80211_FLAG_NEED_RTNL,
12585 },
dfb89c56 12586#endif
e5497d76
JB		 12587 {
12588 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12589 .doit = nl80211_set_rekey_data,
12590 .policy = nl80211_policy,
5617c6cd 12591 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 12592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12593 NL80211_FLAG_NEED_RTNL |
12594 NL80211_FLAG_CLEAR_SKB,
e5497d76 12595 },
109086ce
AN		 12596 {
12597 .cmd = NL80211_CMD_TDLS_MGMT,
12598 .doit = nl80211_tdls_mgmt,
12599 .policy = nl80211_policy,
5617c6cd 12600 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12601 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12602 NL80211_FLAG_NEED_RTNL,
12603 },
12604 {
12605 .cmd = NL80211_CMD_TDLS_OPER,
12606 .doit = nl80211_tdls_oper,
12607 .policy = nl80211_policy,
5617c6cd 12608 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12609 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12610 NL80211_FLAG_NEED_RTNL,
12611 },
28946da7
JB		 12612 {
12613 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
12614 .doit = nl80211_register_unexpected_frame,
12615 .policy = nl80211_policy,
5617c6cd 12616 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 12617 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12618 NL80211_FLAG_NEED_RTNL,
12619 },
7f6cf311
JB		 12620 {
12621 .cmd = NL80211_CMD_PROBE_CLIENT,
12622 .doit = nl80211_probe_client,
12623 .policy = nl80211_policy,
5617c6cd 12624 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 12626 NL80211_FLAG_NEED_RTNL,
12627 },
5e760230
JB		 12628 {
12629 .cmd = NL80211_CMD_REGISTER_BEACONS,
12630 .doit = nl80211_register_beacons,
12631 .policy = nl80211_policy,
5617c6cd 12632 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 12633 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12634 NL80211_FLAG_NEED_RTNL,
12635 },
1d9d9213
SW		 12636 {
12637 .cmd = NL80211_CMD_SET_NOACK_MAP,
12638 .doit = nl80211_set_noack_map,
12639 .policy = nl80211_policy,
5617c6cd 12640 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 12641 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12642 NL80211_FLAG_NEED_RTNL,
12643 },
98104fde
JB		 12644 {
12645 .cmd = NL80211_CMD_START_P2P_DEVICE,
12646 .doit = nl80211_start_p2p_device,
12647 .policy = nl80211_policy,
5617c6cd 12648 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12649 .internal_flags = NL80211_FLAG_NEED_WDEV |
12650 NL80211_FLAG_NEED_RTNL,
12651 },
12652 {
12653 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
12654 .doit = nl80211_stop_p2p_device,
12655 .policy = nl80211_policy,
5617c6cd 12656 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12657 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12658 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 12659 },
12660 {
12661 .cmd = NL80211_CMD_START_NAN,
12662 .doit = nl80211_start_nan,
12663 .policy = nl80211_policy,
12664 .flags = GENL_ADMIN_PERM,
12665 .internal_flags = NL80211_FLAG_NEED_WDEV |
12666 NL80211_FLAG_NEED_RTNL,
12667 },
12668 {
12669 .cmd = NL80211_CMD_STOP_NAN,
12670 .doit = nl80211_stop_nan,
12671 .policy = nl80211_policy,
12672 .flags = GENL_ADMIN_PERM,
12673 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12674 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 12675 },
12676 {
12677 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
12678 .doit = nl80211_nan_add_func,
12679 .policy = nl80211_policy,
12680 .flags = GENL_ADMIN_PERM,
12681 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12682 NL80211_FLAG_NEED_RTNL,
12683 },
12684 {
12685 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
12686 .doit = nl80211_nan_del_func,
12687 .policy = nl80211_policy,
12688 .flags = GENL_ADMIN_PERM,
12689 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12690 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 12691 },
12692 {
12693 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
12694 .doit = nl80211_nan_change_config,
12695 .policy = nl80211_policy,
12696 .flags = GENL_ADMIN_PERM,
12697 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12698 NL80211_FLAG_NEED_RTNL,
98104fde 12699 },
f4e583c8
AQ		 12700 {
12701 .cmd = NL80211_CMD_SET_MCAST_RATE,
12702 .doit = nl80211_set_mcast_rate,
77765eaf 12703 .policy = nl80211_policy,
5617c6cd 12704 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 12705 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12706 NL80211_FLAG_NEED_RTNL,
12707 },
12708 {
12709 .cmd = NL80211_CMD_SET_MAC_ACL,
12710 .doit = nl80211_set_mac_acl,
f4e583c8 12711 .policy = nl80211_policy,
5617c6cd 12712 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 12713 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12714 NL80211_FLAG_NEED_RTNL,
12715 },
04f39047
SW		 12716 {
12717 .cmd = NL80211_CMD_RADAR_DETECT,
12718 .doit = nl80211_start_radar_detection,
12719 .policy = nl80211_policy,
5617c6cd 12720 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 12721 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12722 NL80211_FLAG_NEED_RTNL,
12723 },
3713b4e3
JB		 12724 {
12725 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
12726 .doit = nl80211_get_protocol_features,
12727 .policy = nl80211_policy,
12728 },
355199e0
JM		 12729 {
12730 .cmd = NL80211_CMD_UPDATE_FT_IES,
12731 .doit = nl80211_update_ft_ies,
12732 .policy = nl80211_policy,
5617c6cd 12733 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 12734 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12735 NL80211_FLAG_NEED_RTNL,
12736 },
5de17984
AS		 12737 {
12738 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
12739 .doit = nl80211_crit_protocol_start,
12740 .policy = nl80211_policy,
5617c6cd 12741 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12742 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12743 NL80211_FLAG_NEED_RTNL,
12744 },
12745 {
12746 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
12747 .doit = nl80211_crit_protocol_stop,
12748 .policy = nl80211_policy,
5617c6cd 12749 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12750 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12751 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 12752 },
12753 {
12754 .cmd = NL80211_CMD_GET_COALESCE,
12755 .doit = nl80211_get_coalesce,
12756 .policy = nl80211_policy,
12757 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12758 NL80211_FLAG_NEED_RTNL,
12759 },
12760 {
12761 .cmd = NL80211_CMD_SET_COALESCE,
12762 .doit = nl80211_set_coalesce,
12763 .policy = nl80211_policy,
5617c6cd 12764 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 12765 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12766 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 12767 },
12768 {
12769 .cmd = NL80211_CMD_CHANNEL_SWITCH,
12770 .doit = nl80211_channel_switch,
12771 .policy = nl80211_policy,
5617c6cd 12772 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 12773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12774 NL80211_FLAG_NEED_RTNL,
12775 },
ad7e718c
JB		 12776 {
12777 .cmd = NL80211_CMD_VENDOR,
12778 .doit = nl80211_vendor_cmd,
7bdbe400 12779 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 12780 .policy = nl80211_policy,
5617c6cd 12781 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 12782 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12783 NL80211_FLAG_NEED_RTNL,
12784 },
fa9ffc74
KP		 12785 {
12786 .cmd = NL80211_CMD_SET_QOS_MAP,
12787 .doit = nl80211_set_qos_map,
12788 .policy = nl80211_policy,
5617c6cd 12789 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 12790 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12791 NL80211_FLAG_NEED_RTNL,
12792 },
960d01ac
JB		 12793 {
12794 .cmd = NL80211_CMD_ADD_TX_TS,
12795 .doit = nl80211_add_tx_ts,
12796 .policy = nl80211_policy,
5617c6cd 12797 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12798 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12799 NL80211_FLAG_NEED_RTNL,
12800 },
12801 {
12802 .cmd = NL80211_CMD_DEL_TX_TS,
12803 .doit = nl80211_del_tx_ts,
12804 .policy = nl80211_policy,
5617c6cd 12805 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12806 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12807 NL80211_FLAG_NEED_RTNL,
12808 },
1057d35e
AN		 12809 {
12810 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
12811 .doit = nl80211_tdls_channel_switch,
12812 .policy = nl80211_policy,
5617c6cd 12813 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12814 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12815 NL80211_FLAG_NEED_RTNL,
12816 },
12817 {
12818 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
12819 .doit = nl80211_tdls_cancel_channel_switch,
12820 .policy = nl80211_policy,
5617c6cd 12821 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12822 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12823 NL80211_FLAG_NEED_RTNL,
12824 },
ce0ce13a
MB		 12825 {
12826 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
12827 .doit = nl80211_set_multicast_to_unicast,
12828 .policy = nl80211_policy,
12829 .flags = GENL_UNS_ADMIN_PERM,
12830 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12831 NL80211_FLAG_NEED_RTNL,
12832 },
55682965 12833};
9588bbd5 12834
56989f6d 12835static struct genl_family nl80211_fam __ro_after_init = {
489111e5
JB		 12836 .name = NL80211_GENL_NAME, /* have users key off the name instead */
12837 .hdrsize = 0, /* no private header */
12838 .version = 1, /* no particular meaning now */
12839 .maxattr = NL80211_ATTR_MAX,
12840 .netnsok = true,
12841 .pre_doit = nl80211_pre_doit,
12842 .post_doit = nl80211_post_doit,
12843 .module = THIS_MODULE,
12844 .ops = nl80211_ops,
12845 .n_ops = ARRAY_SIZE(nl80211_ops),
12846 .mcgrps = nl80211_mcgrps,
12847 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
12848};
12849
55682965
JB		 12850/* notification functions */
12851
3bb20556
JB		 12852void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
12853 enum nl80211_commands cmd)
55682965
JB		 12854{
12855 struct sk_buff *msg;
86e8cf98 12856 struct nl80211_dump_wiphy_state state = {};
55682965 12857
3bb20556
JB		 12858 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
12859 cmd != NL80211_CMD_DEL_WIPHY);
12860
fd2120ca 12861 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 12862 if (!msg)
12863 return;
12864
3bb20556 12865 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 12866 nlmsg_free(msg);
12867 return;
12868 }
12869
68eb5503 12870 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12871 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 12872}
12873
896ff063
DK		 12874void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
12875 struct wireless_dev *wdev,
12876 enum nl80211_commands cmd)
12877{
12878 struct sk_buff *msg;
12879
12880 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
12881 cmd != NL80211_CMD_DEL_INTERFACE);
12882
12883 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12884 if (!msg)
12885 return;
12886
12887 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
12888 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
12889 nlmsg_free(msg);
12890 return;
12891 }
12892
12893 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12894 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12895}
12896
362a415d
JB		 12897static int nl80211_add_scan_req(struct sk_buff *msg,
12898 struct cfg80211_registered_device *rdev)
12899{
12900 struct cfg80211_scan_request *req = rdev->scan_req;
12901 struct nlattr *nest;
12902 int i;
12903
12904 if (WARN_ON(!req))
12905 return 0;
12906
12907 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
12908 if (!nest)
12909 goto nla_put_failure;
9360ffd1
DM		 12910 for (i = 0; i < req->n_ssids; i++) {
12911 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
12912 goto nla_put_failure;
12913 }
362a415d
JB		 12914 nla_nest_end(msg, nest);
12915
12916 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12917 if (!nest)
12918 goto nla_put_failure;
9360ffd1
DM		 12919 for (i = 0; i < req->n_channels; i++) {
12920 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12921 goto nla_put_failure;
12922 }
362a415d
JB		 12923 nla_nest_end(msg, nest);
12924
9360ffd1
DM		 12925 if (req->ie &&
12926 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
12927 goto nla_put_failure;
362a415d 12928
ae917c9f
JB		 12929 if (req->flags &&
12930 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
12931 goto nla_put_failure;
ed473771 12932
1d76250b
AS		 12933 if (req->info.scan_start_tsf &&
12934 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
12935 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
12936 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
12937 req->info.tsf_bssid)))
12938 goto nla_put_failure;
12939
362a415d
JB		 12940 return 0;
12941 nla_put_failure:
12942 return -ENOBUFS;
12943}
12944
505a2e88 12945static int nl80211_prep_scan_msg(struct sk_buff *msg,
a538e2d5 12946 struct cfg80211_registered_device *rdev,
fd014284 12947 struct wireless_dev *wdev,
15e47304 12948 u32 portid, u32 seq, int flags,
a538e2d5 12949 u32 cmd)
2a519311
JB		 12950{
12951 void *hdr;
12952
15e47304 12953 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 12954 if (!hdr)
12955 return -1;
12956
9360ffd1 12957 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 12958 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12959 wdev->netdev->ifindex)) ||
2dad624e
ND		 12960 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12961 NL80211_ATTR_PAD))
9360ffd1 12962 goto nla_put_failure;
2a519311 12963
362a415d
JB		 12964 /* ignore errors and send incomplete event anyway */
12965 nl80211_add_scan_req(msg, rdev);
2a519311 12966
053c095a
JB		 12967 genlmsg_end(msg, hdr);
12968 return 0;
2a519311
JB		 12969
12970 nla_put_failure:
12971 genlmsg_cancel(msg, hdr);
12972 return -EMSGSIZE;
12973}
12974
807f8a8c 12975static int
505a2e88 12976nl80211_prep_sched_scan_msg(struct sk_buff *msg,
807f8a8c
LC		 12977 struct cfg80211_registered_device *rdev,
12978 struct net_device *netdev,
15e47304 12979 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 12980{
12981 void *hdr;
12982
15e47304 12983 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 12984 if (!hdr)
12985 return -1;
12986
9360ffd1
DM		 12987 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12988 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12989 goto nla_put_failure;
807f8a8c 12990
053c095a
JB		 12991 genlmsg_end(msg, hdr);
12992 return 0;
807f8a8c
LC		 12993
12994 nla_put_failure:
12995 genlmsg_cancel(msg, hdr);
12996 return -EMSGSIZE;
12997}
12998
a538e2d5 12999void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 13000 struct wireless_dev *wdev)
a538e2d5
JB		 13001{
13002 struct sk_buff *msg;
13003
58050fce 13004 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 13005 if (!msg)
13006 return;
13007
505a2e88 13008 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 13009 NL80211_CMD_TRIGGER_SCAN) < 0) {
13010 nlmsg_free(msg);
13011 return;
13012 }
13013
68eb5503 13014 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13015 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 13016}
13017
f9d15d16
JB		 13018struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13019 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 13020{
13021 struct sk_buff *msg;
13022
fd2120ca 13023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 13024 if (!msg)
f9d15d16 13025 return NULL;
2a519311 13026
505a2e88 13027 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 13028 aborted ? NL80211_CMD_SCAN_ABORTED :
13029 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 13030 nlmsg_free(msg);
f9d15d16 13031 return NULL;
2a519311
JB		 13032 }
13033
f9d15d16 13034 return msg;
2a519311
JB		 13035}
13036
505a2e88
AVS		 13037/* send message created by nl80211_build_scan_msg() */
13038void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13039 struct sk_buff *msg)
807f8a8c 13040{
807f8a8c
LC		 13041 if (!msg)
13042 return;
13043
68eb5503 13044 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13045 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13046}
13047
13048void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
13049 struct net_device *netdev, u32 cmd)
13050{
13051 struct sk_buff *msg;
13052
58050fce 13053 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 13054 if (!msg)
13055 return;
13056
505a2e88 13057 if (nl80211_prep_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
807f8a8c
LC		 13058 nlmsg_free(msg);
13059 return;
13060 }
13061
68eb5503 13062 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13063 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13064}
13065
b0d7aa59
JD		 13066static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13067 struct regulatory_request *request)
73d54c9e 13068{
73d54c9e 13069 /* Userspace can always count this one always being set */
9360ffd1
DM		 13070 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13071 goto nla_put_failure;
13072
13073 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13074 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13075 NL80211_REGDOM_TYPE_WORLD))
13076 goto nla_put_failure;
13077 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13078 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13079 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13080 goto nla_put_failure;
13081 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13082 request->intersect) {
13083 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13084 NL80211_REGDOM_TYPE_INTERSECTION))
13085 goto nla_put_failure;
13086 } else {
13087 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13088 NL80211_REGDOM_TYPE_COUNTRY) ||
13089 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13090 request->alpha2))
13091 goto nla_put_failure;
13092 }
13093
ad30ca2c
AN		 13094 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13095 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13096
13097 if (wiphy &&
13098 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13099 goto nla_put_failure;
1bdd716c
AN		 13100
13101 if (wiphy &&
13102 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13103 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13104 goto nla_put_failure;
ad30ca2c 13105 }
73d54c9e 13106
b0d7aa59
JD		 13107 return true;
13108
13109nla_put_failure:
13110 return false;
13111}
13112
13113/*
13114 * This can happen on global regulatory changes or device specific settings
13115 * based on custom regulatory domains.
13116 */
13117void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13118 struct regulatory_request *request)
13119{
13120 struct sk_buff *msg;
13121 void *hdr;
13122
13123 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13124 if (!msg)
13125 return;
13126
13127 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13128 if (!hdr) {
13129 nlmsg_free(msg);
13130 return;
13131 }
13132
13133 if (nl80211_reg_change_event_fill(msg, request) == false)
13134 goto nla_put_failure;
13135
3b7b72ee 13136 genlmsg_end(msg, hdr);
73d54c9e 13137
bc43b28c 13138 rcu_read_lock();
68eb5503 13139 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13140 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 13141 rcu_read_unlock();
73d54c9e
LR		 13142
13143 return;
13144
13145nla_put_failure:
13146 genlmsg_cancel(msg, hdr);
13147 nlmsg_free(msg);
13148}
13149
6039f6d2
JM		 13150static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13151 struct net_device *netdev,
13152 const u8 *buf, size_t len,
b0b6aa2c
EP		 13153 enum nl80211_commands cmd, gfp_t gfp,
13154 int uapsd_queues)
6039f6d2
JM		 13155{
13156 struct sk_buff *msg;
13157 void *hdr;
13158
4ef8c1c9 13159 msg = nlmsg_new(100 + len, gfp);
6039f6d2
JM		 13160 if (!msg)
13161 return;
13162
13163 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13164 if (!hdr) {
13165 nlmsg_free(msg);
13166 return;
13167 }
13168
9360ffd1
DM		 13169 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13170 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13171 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13172 goto nla_put_failure;
6039f6d2 13173
b0b6aa2c
EP		 13174 if (uapsd_queues >= 0) {
13175 struct nlattr *nla_wmm =
13176 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13177 if (!nla_wmm)
13178 goto nla_put_failure;
13179
13180 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13181 uapsd_queues))
13182 goto nla_put_failure;
13183
13184 nla_nest_end(msg, nla_wmm);
13185 }
13186
3b7b72ee 13187 genlmsg_end(msg, hdr);
6039f6d2 13188
68eb5503 13189 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13190 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 13191 return;
13192
13193 nla_put_failure:
13194 genlmsg_cancel(msg, hdr);
13195 nlmsg_free(msg);
13196}
13197
13198void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13199 struct net_device *netdev, const u8 *buf,
13200 size_t len, gfp_t gfp)
6039f6d2
JM		 13201{
13202 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13203 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 13204}
13205
13206void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13207 struct net_device *netdev, const u8 *buf,
b0b6aa2c 13208 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 13209{
e6d6e342 13210 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13211 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 13212}
13213
53b46b84 13214void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13215 struct net_device *netdev, const u8 *buf,
13216 size_t len, gfp_t gfp)
6039f6d2
JM		 13217{
13218 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13219 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 13220}
13221
53b46b84
JM		 13222void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13223 struct net_device *netdev, const u8 *buf,
e6d6e342 13224 size_t len, gfp_t gfp)
6039f6d2
JM		 13225{
13226 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13227 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 13228}
13229
6ff57cf8
JB		 13230void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13231 size_t len)
cf4e594e 13232{
947add36
JB		 13233 struct wireless_dev *wdev = dev->ieee80211_ptr;
13234 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13235 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 13236 const struct ieee80211_mgmt *mgmt = (void *)buf;
13237 u32 cmd;
947add36 13238
6ff57cf8
JB		 13239 if (WARN_ON(len < 2))
13240 return;
cf4e594e 13241
6ff57cf8
JB		 13242 if (ieee80211_is_deauth(mgmt->frame_control))
13243 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13244 else
13245 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13246
6ff57cf8 13247 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13248 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13249}
6ff57cf8 13250EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13251
1b06bb40
LR		 13252static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13253 struct net_device *netdev, int cmd,
e6d6e342 13254 const u8 *addr, gfp_t gfp)
1965c853
JM		 13255{
13256 struct sk_buff *msg;
13257 void *hdr;
13258
e6d6e342 13259 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13260 if (!msg)
13261 return;
13262
13263 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13264 if (!hdr) {
13265 nlmsg_free(msg);
13266 return;
13267 }
13268
9360ffd1
DM		 13269 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13270 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13271 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13272 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13273 goto nla_put_failure;
1965c853 13274
3b7b72ee 13275 genlmsg_end(msg, hdr);
1965c853 13276
68eb5503 13277 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13278 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13279 return;
13280
13281 nla_put_failure:
13282 genlmsg_cancel(msg, hdr);
13283 nlmsg_free(msg);
13284}
13285
13286void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13287 struct net_device *netdev, const u8 *addr,
13288 gfp_t gfp)
1965c853
JM		 13289{
13290 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13291 addr, gfp);
1965c853
JM		 13292}
13293
13294void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13295 struct net_device *netdev, const u8 *addr,
13296 gfp_t gfp)
1965c853 13297{
e6d6e342
JB		 13298 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13299 addr, gfp);
1965c853
JM		 13300}
13301
b23aa676
SO		 13302void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
13303 struct net_device *netdev, const u8 *bssid,
13304 const u8 *req_ie, size_t req_ie_len,
13305 const u8 *resp_ie, size_t resp_ie_len,
3093ebbe
PK		 13306 int status,
13307 enum nl80211_timeout_reason timeout_reason,
13308 gfp_t gfp)
b23aa676
SO		 13309{
13310 struct sk_buff *msg;
13311 void *hdr;
13312
4ef8c1c9 13313 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
b23aa676
SO		 13314 if (!msg)
13315 return;
13316
13317 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13318 if (!hdr) {
13319 nlmsg_free(msg);
13320 return;
13321 }
13322
9360ffd1
DM		 13323 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13324 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13325 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 13326 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
13327 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13328 status) ||
3093ebbe
PK		 13329 (status < 0 &&
13330 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13331 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON, timeout_reason))) ||
9360ffd1
DM		 13332 (req_ie &&
13333 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13334 (resp_ie &&
13335 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13336 goto nla_put_failure;
b23aa676 13337
3b7b72ee 13338 genlmsg_end(msg, hdr);
b23aa676 13339
68eb5503 13340 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13341 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13342 return;
13343
13344 nla_put_failure:
13345 genlmsg_cancel(msg, hdr);
13346 nlmsg_free(msg);
b23aa676
SO		 13347}
13348
13349void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13350 struct net_device *netdev, const u8 *bssid,
13351 const u8 *req_ie, size_t req_ie_len,
13352 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
13353{
13354 struct sk_buff *msg;
13355 void *hdr;
13356
4ef8c1c9 13357 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
b23aa676
SO		 13358 if (!msg)
13359 return;
13360
13361 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13362 if (!hdr) {
13363 nlmsg_free(msg);
13364 return;
13365 }
13366
9360ffd1
DM		 13367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13368 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13369 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13370 (req_ie &&
13371 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13372 (resp_ie &&
13373 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13374 goto nla_put_failure;
b23aa676 13375
3b7b72ee 13376 genlmsg_end(msg, hdr);
b23aa676 13377
68eb5503 13378 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13379 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13380 return;
13381
13382 nla_put_failure:
13383 genlmsg_cancel(msg, hdr);
13384 nlmsg_free(msg);
b23aa676
SO		 13385}
13386
13387void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13388 struct net_device *netdev, u16 reason,
667503dd 13389 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13390{
13391 struct sk_buff *msg;
13392 void *hdr;
13393
4ef8c1c9 13394 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
b23aa676
SO		 13395 if (!msg)
13396 return;
13397
13398 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13399 if (!hdr) {
13400 nlmsg_free(msg);
13401 return;
13402 }
13403
9360ffd1
DM		 13404 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13405 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13406 (from_ap && reason &&
13407 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13408 (from_ap &&
13409 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13410 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13411 goto nla_put_failure;
b23aa676 13412
3b7b72ee 13413 genlmsg_end(msg, hdr);
b23aa676 13414
68eb5503 13415 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13416 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13417 return;
13418
13419 nla_put_failure:
13420 genlmsg_cancel(msg, hdr);
13421 nlmsg_free(msg);
b23aa676
SO		 13422}
13423
04a773ad
JB		 13424void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13425 struct net_device *netdev, const u8 *bssid,
13426 gfp_t gfp)
13427{
13428 struct sk_buff *msg;
13429 void *hdr;
13430
fd2120ca 13431 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13432 if (!msg)
13433 return;
13434
13435 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13436 if (!hdr) {
13437 nlmsg_free(msg);
13438 return;
13439 }
13440
9360ffd1
DM		 13441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13442 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13443 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13444 goto nla_put_failure;
04a773ad 13445
3b7b72ee 13446 genlmsg_end(msg, hdr);
04a773ad 13447
68eb5503 13448 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13449 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 13450 return;
13451
13452 nla_put_failure:
13453 genlmsg_cancel(msg, hdr);
13454 nlmsg_free(msg);
13455}
13456
947add36
JB		 13457void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13458 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 13459{
947add36 13460 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13461 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 13462 struct sk_buff *msg;
13463 void *hdr;
13464
947add36
JB		 13465 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13466 return;
13467
13468 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13469
4ef8c1c9 13470 msg = nlmsg_new(100 + ie_len, gfp);
c93b5e71
JC		 13471 if (!msg)
13472 return;
13473
13474 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13475 if (!hdr) {
13476 nlmsg_free(msg);
13477 return;
13478 }
13479
9360ffd1 13480 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 13481 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 13483 (ie_len && ie &&
13484 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13485 goto nla_put_failure;
c93b5e71 13486
3b7b72ee 13487 genlmsg_end(msg, hdr);
c93b5e71 13488
68eb5503 13489 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13490 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 13491 return;
13492
13493 nla_put_failure:
13494 genlmsg_cancel(msg, hdr);
13495 nlmsg_free(msg);
13496}
947add36 13497EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 13498
a3b8b056
JM		 13499void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13500 struct net_device *netdev, const u8 *addr,
13501 enum nl80211_key_type key_type, int key_id,
e6d6e342 13502 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 13503{
13504 struct sk_buff *msg;
13505 void *hdr;
13506
e6d6e342 13507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 13508 if (!msg)
13509 return;
13510
13511 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13512 if (!hdr) {
13513 nlmsg_free(msg);
13514 return;
13515 }
13516
9360ffd1
DM		 13517 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13518 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13519 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13520 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13521 (key_id != -1 &&
13522 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13523 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13524 goto nla_put_failure;
a3b8b056 13525
3b7b72ee 13526 genlmsg_end(msg, hdr);
a3b8b056 13527
68eb5503 13528 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13529 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 13530 return;
13531
13532 nla_put_failure:
13533 genlmsg_cancel(msg, hdr);
13534 nlmsg_free(msg);
13535}
13536
6bad8766
LR		 13537void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13538 struct ieee80211_channel *channel_before,
13539 struct ieee80211_channel *channel_after)
13540{
13541 struct sk_buff *msg;
13542 void *hdr;
13543 struct nlattr *nl_freq;
13544
fd2120ca 13545 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 13546 if (!msg)
13547 return;
13548
13549 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13550 if (!hdr) {
13551 nlmsg_free(msg);
13552 return;
13553 }
13554
13555 /*
13556 * Since we are applying the beacon hint to a wiphy we know its
13557 * wiphy_idx is valid
13558 */
9360ffd1
DM		 13559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13560 goto nla_put_failure;
6bad8766
LR		 13561
13562 /* Before */
13563 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13564 if (!nl_freq)
13565 goto nla_put_failure;
cdc89b97 13566 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 13567 goto nla_put_failure;
13568 nla_nest_end(msg, nl_freq);
13569
13570 /* After */
13571 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
13572 if (!nl_freq)
13573 goto nla_put_failure;
cdc89b97 13574 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 13575 goto nla_put_failure;
13576 nla_nest_end(msg, nl_freq);
13577
3b7b72ee 13578 genlmsg_end(msg, hdr);
6bad8766 13579
463d0183 13580 rcu_read_lock();
68eb5503 13581 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13582 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 13583 rcu_read_unlock();
6bad8766
LR		 13584
13585 return;
13586
13587nla_put_failure:
13588 genlmsg_cancel(msg, hdr);
13589 nlmsg_free(msg);
13590}
13591
9588bbd5
JM		 13592static void nl80211_send_remain_on_chan_event(
13593 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 13594 struct wireless_dev *wdev, u64 cookie,
9588bbd5 13595 struct ieee80211_channel *chan,
9588bbd5
JM		 13596 unsigned int duration, gfp_t gfp)
13597{
13598 struct sk_buff *msg;
13599 void *hdr;
13600
13601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13602 if (!msg)
13603 return;
13604
13605 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13606 if (!hdr) {
13607 nlmsg_free(msg);
13608 return;
13609 }
13610
9360ffd1 13611 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13612 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13613 wdev->netdev->ifindex)) ||
2dad624e
ND		 13614 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13615 NL80211_ATTR_PAD) ||
9360ffd1 13616 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 13617 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
13618 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 13619 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13620 NL80211_ATTR_PAD))
9360ffd1 13621 goto nla_put_failure;
9588bbd5 13622
9360ffd1
DM		 13623 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
13624 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
13625 goto nla_put_failure;
9588bbd5 13626
3b7b72ee 13627 genlmsg_end(msg, hdr);
9588bbd5 13628
68eb5503 13629 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13630 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 13631 return;
13632
13633 nla_put_failure:
13634 genlmsg_cancel(msg, hdr);
13635 nlmsg_free(msg);
13636}
13637
947add36
JB		 13638void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
13639 struct ieee80211_channel *chan,
13640 unsigned int duration, gfp_t gfp)
9588bbd5 13641{
947add36 13642 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13643 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13644
13645 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 13646 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 13647 rdev, wdev, cookie, chan,
42d97a59 13648 duration, gfp);
9588bbd5 13649}
947add36 13650EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 13651
947add36
JB		 13652void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
13653 struct ieee80211_channel *chan,
13654 gfp_t gfp)
9588bbd5 13655{
947add36 13656 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13657 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13658
13659 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 13660 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 13661 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 13662}
947add36 13663EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 13664
947add36
JB		 13665void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
13666 struct station_info *sinfo, gfp_t gfp)
98b62183 13667{
947add36 13668 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13669 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 13670 struct sk_buff *msg;
13671
947add36
JB		 13672 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
13673
58050fce 13674 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 13675 if (!msg)
13676 return;
13677
cf5ead82 13678 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 13679 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 13680 nlmsg_free(msg);
13681 return;
13682 }
13683
68eb5503 13684 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13685 NL80211_MCGRP_MLME, gfp);
98b62183 13686}
947add36 13687EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 13688
cf5ead82
JB		 13689void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
13690 struct station_info *sinfo, gfp_t gfp)
ec15e68b 13691{
947add36 13692 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13693 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 13694 struct sk_buff *msg;
cf5ead82
JB		 13695 struct station_info empty_sinfo = {};
13696
13697 if (!sinfo)
13698 sinfo = &empty_sinfo;
ec15e68b 13699
947add36
JB		 13700 trace_cfg80211_del_sta(dev, mac_addr);
13701
58050fce 13702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 13703 if (!msg)
13704 return;
13705
cf5ead82 13706 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 13707 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 13708 nlmsg_free(msg);
13709 return;
13710 }
13711
68eb5503 13712 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13713 NL80211_MCGRP_MLME, gfp);
ec15e68b 13714}
cf5ead82 13715EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 13716
947add36
JB		 13717void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
13718 enum nl80211_connect_failed_reason reason,
13719 gfp_t gfp)
ed44a951 13720{
947add36 13721 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13722 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 13723 struct sk_buff *msg;
13724 void *hdr;
13725
13726 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
13727 if (!msg)
13728 return;
13729
13730 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
13731 if (!hdr) {
13732 nlmsg_free(msg);
13733 return;
13734 }
13735
13736 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13737 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
13738 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
13739 goto nla_put_failure;
13740
13741 genlmsg_end(msg, hdr);
13742
68eb5503 13743 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13744 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 13745 return;
13746
13747 nla_put_failure:
13748 genlmsg_cancel(msg, hdr);
13749 nlmsg_free(msg);
13750}
947add36 13751EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 13752
b92ab5d8
JB		 13753static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
13754 const u8 *addr, gfp_t gfp)
28946da7
JB		 13755{
13756 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13757 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 13758 struct sk_buff *msg;
13759 void *hdr;
15e47304 13760 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 13761
15e47304 13762 if (!nlportid)
28946da7
JB		 13763 return false;
13764
13765 msg = nlmsg_new(100, gfp);
13766 if (!msg)
13767 return true;
13768
b92ab5d8 13769 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 13770 if (!hdr) {
13771 nlmsg_free(msg);
13772 return true;
13773 }
13774
9360ffd1
DM		 13775 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13776 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13777 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13778 goto nla_put_failure;
28946da7 13779
9c90a9f6 13780 genlmsg_end(msg, hdr);
15e47304 13781 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 13782 return true;
13783
13784 nla_put_failure:
13785 genlmsg_cancel(msg, hdr);
13786 nlmsg_free(msg);
13787 return true;
13788}
13789
947add36
JB		 13790bool cfg80211_rx_spurious_frame(struct net_device *dev,
13791 const u8 *addr, gfp_t gfp)
b92ab5d8 13792{
947add36
JB		 13793 struct wireless_dev *wdev = dev->ieee80211_ptr;
13794 bool ret;
13795
13796 trace_cfg80211_rx_spurious_frame(dev, addr);
13797
13798 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13799 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
13800 trace_cfg80211_return_bool(false);
13801 return false;
13802 }
13803 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
13804 addr, gfp);
13805 trace_cfg80211_return_bool(ret);
13806 return ret;
b92ab5d8 13807}
947add36 13808EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 13809
947add36
JB		 13810bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
13811 const u8 *addr, gfp_t gfp)
b92ab5d8 13812{
947add36
JB		 13813 struct wireless_dev *wdev = dev->ieee80211_ptr;
13814 bool ret;
13815
13816 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
13817
13818 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13819 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
13820 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
13821 trace_cfg80211_return_bool(false);
13822 return false;
13823 }
13824 ret = __nl80211_unexpected_frame(dev,
13825 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
13826 addr, gfp);
13827 trace_cfg80211_return_bool(ret);
13828 return ret;
b92ab5d8 13829}
947add36 13830EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 13831
2e161f78 13832int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 13833 struct wireless_dev *wdev, u32 nlportid,
804483e9 13834 int freq, int sig_dbm,
19504cf5 13835 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 13836{
71bbc994 13837 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13838 struct sk_buff *msg;
13839 void *hdr;
026331c4 13840
4ef8c1c9 13841 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 13842 if (!msg)
13843 return -ENOMEM;
13844
2e161f78 13845 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 13846 if (!hdr) {
13847 nlmsg_free(msg);
13848 return -ENOMEM;
13849 }
13850
9360ffd1 13851 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13852 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13853 netdev->ifindex)) ||
2dad624e
ND		 13854 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13855 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13856 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
13857 (sig_dbm &&
13858 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 13859 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13860 (flags &&
13861 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 13862 goto nla_put_failure;
026331c4 13863
3b7b72ee 13864 genlmsg_end(msg, hdr);
026331c4 13865
15e47304 13866 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 13867
13868 nla_put_failure:
13869 genlmsg_cancel(msg, hdr);
13870 nlmsg_free(msg);
13871 return -ENOBUFS;
13872}
13873
947add36
JB		 13874void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
13875 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 13876{
947add36 13877 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13878 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 13879 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13880 struct sk_buff *msg;
13881 void *hdr;
13882
947add36
JB		 13883 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
13884
4ef8c1c9 13885 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 13886 if (!msg)
13887 return;
13888
2e161f78 13889 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 13890 if (!hdr) {
13891 nlmsg_free(msg);
13892 return;
13893 }
13894
9360ffd1 13895 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13896 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13897 netdev->ifindex)) ||
2dad624e
ND		 13898 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13899 NL80211_ATTR_PAD) ||
9360ffd1 13900 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 13901 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13902 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13903 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
13904 goto nla_put_failure;
026331c4 13905
3b7b72ee 13906 genlmsg_end(msg, hdr);
026331c4 13907
68eb5503 13908 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13909 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 13910 return;
13911
13912 nla_put_failure:
13913 genlmsg_cancel(msg, hdr);
13914 nlmsg_free(msg);
13915}
947add36 13916EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 13917
5b97f49d
JB		 13918static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
13919 const char *mac, gfp_t gfp)
d6dc1a38 13920{
947add36 13921 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 13922 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13923 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13924 void **cb;
947add36 13925
d6dc1a38 13926 if (!msg)
5b97f49d 13927 return NULL;
d6dc1a38 13928
5b97f49d
JB		 13929 cb = (void **)msg->cb;
13930
13931 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
13932 if (!cb[0]) {
d6dc1a38 13933 nlmsg_free(msg);
5b97f49d 13934 return NULL;
d6dc1a38
JO		 13935 }
13936
9360ffd1 13937 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 13938 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 13939 goto nla_put_failure;
d6dc1a38 13940
5b97f49d 13941 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 13942 goto nla_put_failure;
13943
5b97f49d
JB		 13944 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
13945 if (!cb[1])
9360ffd1 13946 goto nla_put_failure;
d6dc1a38 13947
5b97f49d 13948 cb[2] = rdev;
d6dc1a38 13949
5b97f49d
JB		 13950 return msg;
13951 nla_put_failure:
13952 nlmsg_free(msg);
13953 return NULL;
13954}
13955
13956static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
13957{
13958 void **cb = (void **)msg->cb;
13959 struct cfg80211_registered_device *rdev = cb[2];
13960
13961 nla_nest_end(msg, cb[1]);
13962 genlmsg_end(msg, cb[0]);
13963
13964 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 13965
68eb5503 13966 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13967 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 13968}
13969
13970void cfg80211_cqm_rssi_notify(struct net_device *dev,
13971 enum nl80211_cqm_rssi_threshold_event rssi_event,
bee427b8 13972 s32 rssi_level, gfp_t gfp)
5b97f49d
JB		 13973{
13974 struct sk_buff *msg;
13975
bee427b8 13976 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
5b97f49d 13977
98f03342
JB		 13978 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13979 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13980 return;
13981
5b97f49d
JB		 13982 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13983 if (!msg)
13984 return;
13985
13986 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13987 rssi_event))
13988 goto nla_put_failure;
13989
bee427b8
AZ		 13990 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
13991 rssi_level))
13992 goto nla_put_failure;
13993
5b97f49d
JB		 13994 cfg80211_send_cqm(msg, gfp);
13995
d6dc1a38
JO		 13996 return;
13997
13998 nla_put_failure:
d6dc1a38
JO		 13999 nlmsg_free(msg);
14000}
947add36 14001EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 14002
5b97f49d
JB		 14003void cfg80211_cqm_txe_notify(struct net_device *dev,
14004 const u8 *peer, u32 num_packets,
14005 u32 rate, u32 intvl, gfp_t gfp)
14006{
14007 struct sk_buff *msg;
14008
14009 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14010 if (!msg)
14011 return;
14012
14013 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14014 goto nla_put_failure;
14015
14016 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14017 goto nla_put_failure;
14018
14019 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14020 goto nla_put_failure;
14021
14022 cfg80211_send_cqm(msg, gfp);
14023 return;
14024
14025 nla_put_failure:
14026 nlmsg_free(msg);
14027}
14028EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14029
14030void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14031 const u8 *peer, u32 num_packets, gfp_t gfp)
14032{
14033 struct sk_buff *msg;
14034
14035 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14036
14037 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14038 if (!msg)
14039 return;
14040
14041 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14042 goto nla_put_failure;
14043
14044 cfg80211_send_cqm(msg, gfp);
14045 return;
14046
14047 nla_put_failure:
14048 nlmsg_free(msg);
14049}
14050EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14051
98f03342
JB		 14052void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14053{
14054 struct sk_buff *msg;
14055
14056 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14057 if (!msg)
14058 return;
14059
14060 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14061 goto nla_put_failure;
14062
14063 cfg80211_send_cqm(msg, gfp);
14064 return;
14065
14066 nla_put_failure:
14067 nlmsg_free(msg);
14068}
14069EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14070
947add36
JB		 14071static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14072 struct net_device *netdev, const u8 *bssid,
14073 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 14074{
14075 struct sk_buff *msg;
14076 struct nlattr *rekey_attr;
14077 void *hdr;
14078
58050fce 14079 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 14080 if (!msg)
14081 return;
14082
14083 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14084 if (!hdr) {
14085 nlmsg_free(msg);
14086 return;
14087 }
14088
9360ffd1
DM		 14089 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14090 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14091 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14092 goto nla_put_failure;
e5497d76
JB		 14093
14094 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14095 if (!rekey_attr)
14096 goto nla_put_failure;
14097
9360ffd1
DM		 14098 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14099 NL80211_REPLAY_CTR_LEN, replay_ctr))
14100 goto nla_put_failure;
e5497d76
JB		 14101
14102 nla_nest_end(msg, rekey_attr);
14103
3b7b72ee 14104 genlmsg_end(msg, hdr);
e5497d76 14105
68eb5503 14106 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14107 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 14108 return;
14109
14110 nla_put_failure:
14111 genlmsg_cancel(msg, hdr);
14112 nlmsg_free(msg);
14113}
14114
947add36
JB		 14115void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14116 const u8 *replay_ctr, gfp_t gfp)
14117{
14118 struct wireless_dev *wdev = dev->ieee80211_ptr;
14119 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14120 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14121
14122 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14123 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14124}
14125EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14126
14127static void
14128nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14129 struct net_device *netdev, int index,
14130 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 14131{
14132 struct sk_buff *msg;
14133 struct nlattr *attr;
14134 void *hdr;
14135
58050fce 14136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 14137 if (!msg)
14138 return;
14139
14140 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14141 if (!hdr) {
14142 nlmsg_free(msg);
14143 return;
14144 }
14145
9360ffd1
DM		 14146 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14147 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14148 goto nla_put_failure;
c9df56b4
JM		 14149
14150 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14151 if (!attr)
14152 goto nla_put_failure;
14153
9360ffd1
DM		 14154 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14155 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14156 (preauth &&
14157 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14158 goto nla_put_failure;
c9df56b4
JM		 14159
14160 nla_nest_end(msg, attr);
14161
3b7b72ee 14162 genlmsg_end(msg, hdr);
c9df56b4 14163
68eb5503 14164 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14165 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 14166 return;
14167
14168 nla_put_failure:
14169 genlmsg_cancel(msg, hdr);
14170 nlmsg_free(msg);
14171}
14172
947add36
JB		 14173void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14174 const u8 *bssid, bool preauth, gfp_t gfp)
14175{
14176 struct wireless_dev *wdev = dev->ieee80211_ptr;
14177 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14178 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14179
14180 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14181 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14182}
14183EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14184
14185static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14186 struct net_device *netdev,
14187 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 14188 gfp_t gfp,
14189 enum nl80211_commands notif,
14190 u8 count)
5314526b
TP		 14191{
14192 struct sk_buff *msg;
14193 void *hdr;
14194
58050fce 14195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 14196 if (!msg)
14197 return;
14198
f8d7552e 14199 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 14200 if (!hdr) {
14201 nlmsg_free(msg);
14202 return;
14203 }
14204
683b6d3b
JB		 14205 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14206 goto nla_put_failure;
14207
14208 if (nl80211_send_chandef(msg, chandef))
7eab0f64 14209 goto nla_put_failure;
5314526b 14210
f8d7552e
LC		 14211 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14212 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14213 goto nla_put_failure;
14214
5314526b
TP		 14215 genlmsg_end(msg, hdr);
14216
68eb5503 14217 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14218 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 14219 return;
14220
14221 nla_put_failure:
14222 genlmsg_cancel(msg, hdr);
14223 nlmsg_free(msg);
14224}
14225
947add36
JB		 14226void cfg80211_ch_switch_notify(struct net_device *dev,
14227 struct cfg80211_chan_def *chandef)
84f10708 14228{
947add36
JB		 14229 struct wireless_dev *wdev = dev->ieee80211_ptr;
14230 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14231 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 14232
e487eaeb 14233 ASSERT_WDEV_LOCK(wdev);
947add36 14234
e487eaeb 14235 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 14236
9e0e2961 14237 wdev->chandef = *chandef;
96f55f12 14238 wdev->preset_chandef = *chandef;
f8d7552e
LC		 14239 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14240 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 14241}
14242EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14243
f8d7552e
LC		 14244void cfg80211_ch_switch_started_notify(struct net_device *dev,
14245 struct cfg80211_chan_def *chandef,
14246 u8 count)
14247{
14248 struct wireless_dev *wdev = dev->ieee80211_ptr;
14249 struct wiphy *wiphy = wdev->wiphy;
14250 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14251
14252 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14253
14254 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14255 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14256}
14257EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14258
04f39047
SW		 14259void
14260nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14261 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14262 enum nl80211_radar_event event,
14263 struct net_device *netdev, gfp_t gfp)
14264{
14265 struct sk_buff *msg;
14266 void *hdr;
14267
14268 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14269 if (!msg)
14270 return;
14271
14272 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14273 if (!hdr) {
14274 nlmsg_free(msg);
14275 return;
14276 }
14277
14278 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14279 goto nla_put_failure;
14280
14281 /* NOP and radar events don't need a netdev parameter */
14282 if (netdev) {
14283 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14284
14285 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14286 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14287 NL80211_ATTR_PAD))
04f39047
SW		 14288 goto nla_put_failure;
14289 }
14290
14291 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14292 goto nla_put_failure;
14293
14294 if (nl80211_send_chandef(msg, chandef))
14295 goto nla_put_failure;
14296
9c90a9f6 14297 genlmsg_end(msg, hdr);
04f39047 14298
68eb5503 14299 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14300 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14301 return;
14302
14303 nla_put_failure:
14304 genlmsg_cancel(msg, hdr);
14305 nlmsg_free(msg);
14306}
14307
7f6cf311
JB		 14308void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14309 u64 cookie, bool acked, gfp_t gfp)
14310{
14311 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14312 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14313 struct sk_buff *msg;
14314 void *hdr;
7f6cf311 14315
4ee3e063
BL		 14316 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14317
58050fce 14318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14319
7f6cf311
JB		 14320 if (!msg)
14321 return;
14322
14323 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14324 if (!hdr) {
14325 nlmsg_free(msg);
14326 return;
14327 }
14328
9360ffd1
DM		 14329 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14330 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14331 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14332 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14333 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14334 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14335 goto nla_put_failure;
7f6cf311 14336
9c90a9f6 14337 genlmsg_end(msg, hdr);
7f6cf311 14338
68eb5503 14339 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14340 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14341 return;
14342
14343 nla_put_failure:
14344 genlmsg_cancel(msg, hdr);
14345 nlmsg_free(msg);
14346}
14347EXPORT_SYMBOL(cfg80211_probe_status);
14348
5e760230
JB		 14349void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14350 const u8 *frame, size_t len,
37c73b5f 14351 int freq, int sig_dbm)
5e760230 14352{
f26cbf40 14353 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14354 struct sk_buff *msg;
14355 void *hdr;
37c73b5f 14356 struct cfg80211_beacon_registration *reg;
5e760230 14357
4ee3e063
BL		 14358 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14359
37c73b5f
BG		 14360 spin_lock_bh(&rdev->beacon_registrations_lock);
14361 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14362 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14363 if (!msg) {
14364 spin_unlock_bh(&rdev->beacon_registrations_lock);
14365 return;
14366 }
5e760230 14367
37c73b5f
BG		 14368 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14369 if (!hdr)
14370 goto nla_put_failure;
5e760230 14371
37c73b5f
BG		 14372 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14373 (freq &&
14374 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14375 (sig_dbm &&
14376 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14377 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14378 goto nla_put_failure;
5e760230 14379
37c73b5f 14380 genlmsg_end(msg, hdr);
5e760230 14381
37c73b5f
BG		 14382 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14383 }
14384 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14385 return;
14386
14387 nla_put_failure:
37c73b5f
BG		 14388 spin_unlock_bh(&rdev->beacon_registrations_lock);
14389 if (hdr)
14390 genlmsg_cancel(msg, hdr);
5e760230
JB		 14391 nlmsg_free(msg);
14392}
14393EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14394
cd8f7cb4 14395#ifdef CONFIG_PM
8cd4d456
LC		 14396static int cfg80211_net_detect_results(struct sk_buff *msg,
14397 struct cfg80211_wowlan_wakeup *wakeup)
14398{
14399 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14400 struct nlattr *nl_results, *nl_match, *nl_freqs;
14401 int i, j;
14402
14403 nl_results = nla_nest_start(
14404 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14405 if (!nl_results)
14406 return -EMSGSIZE;
14407
14408 for (i = 0; i < nd->n_matches; i++) {
14409 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14410
14411 nl_match = nla_nest_start(msg, i);
14412 if (!nl_match)
14413 break;
14414
14415 /* The SSID attribute is optional in nl80211, but for
14416 * simplicity reasons it's always present in the
14417 * cfg80211 structure. If a driver can't pass the
14418 * SSID, that needs to be changed. A zero length SSID
14419 * is still a valid SSID (wildcard), so it cannot be
14420 * used for this purpose.
14421 */
14422 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14423 match->ssid.ssid)) {
14424 nla_nest_cancel(msg, nl_match);
14425 goto out;
14426 }
14427
14428 if (match->n_channels) {
14429 nl_freqs = nla_nest_start(
14430 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14431 if (!nl_freqs) {
14432 nla_nest_cancel(msg, nl_match);
14433 goto out;
14434 }
14435
14436 for (j = 0; j < match->n_channels; j++) {
5528fae8 14437 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 14438 nla_nest_cancel(msg, nl_freqs);
14439 nla_nest_cancel(msg, nl_match);
14440 goto out;
14441 }
14442 }
14443
14444 nla_nest_end(msg, nl_freqs);
14445 }
14446
14447 nla_nest_end(msg, nl_match);
14448 }
14449
14450out:
14451 nla_nest_end(msg, nl_results);
14452 return 0;
14453}
14454
cd8f7cb4
JB		 14455void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14456 struct cfg80211_wowlan_wakeup *wakeup,
14457 gfp_t gfp)
14458{
f26cbf40 14459 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 14460 struct sk_buff *msg;
14461 void *hdr;
9c90a9f6 14462 int size = 200;
cd8f7cb4
JB		 14463
14464 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14465
14466 if (wakeup)
14467 size += wakeup->packet_present_len;
14468
14469 msg = nlmsg_new(size, gfp);
14470 if (!msg)
14471 return;
14472
14473 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14474 if (!hdr)
14475 goto free_msg;
14476
14477 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14478 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14479 NL80211_ATTR_PAD))
cd8f7cb4
JB		 14480 goto free_msg;
14481
14482 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14483 wdev->netdev->ifindex))
14484 goto free_msg;
14485
14486 if (wakeup) {
14487 struct nlattr *reasons;
14488
14489 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 14490 if (!reasons)
14491 goto free_msg;
cd8f7cb4
JB		 14492
14493 if (wakeup->disconnect &&
14494 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14495 goto free_msg;
14496 if (wakeup->magic_pkt &&
14497 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14498 goto free_msg;
14499 if (wakeup->gtk_rekey_failure &&
14500 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14501 goto free_msg;
14502 if (wakeup->eap_identity_req &&
14503 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14504 goto free_msg;
14505 if (wakeup->four_way_handshake &&
14506 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14507 goto free_msg;
14508 if (wakeup->rfkill_release &&
14509 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14510 goto free_msg;
14511
14512 if (wakeup->pattern_idx >= 0 &&
14513 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14514 wakeup->pattern_idx))
14515 goto free_msg;
14516
ae917c9f
JB		 14517 if (wakeup->tcp_match &&
14518 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14519 goto free_msg;
2a0e047e 14520
ae917c9f
JB		 14521 if (wakeup->tcp_connlost &&
14522 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14523 goto free_msg;
2a0e047e 14524
ae917c9f
JB		 14525 if (wakeup->tcp_nomoretokens &&
14526 nla_put_flag(msg,
14527 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14528 goto free_msg;
2a0e047e 14529
cd8f7cb4
JB		 14530 if (wakeup->packet) {
14531 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14532 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14533
14534 if (!wakeup->packet_80211) {
14535 pkt_attr =
14536 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14537 len_attr =
14538 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14539 }
14540
14541 if (wakeup->packet_len &&
14542 nla_put_u32(msg, len_attr, wakeup->packet_len))
14543 goto free_msg;
14544
14545 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14546 wakeup->packet))
14547 goto free_msg;
14548 }
14549
8cd4d456
LC		 14550 if (wakeup->net_detect &&
14551 cfg80211_net_detect_results(msg, wakeup))
14552 goto free_msg;
14553
cd8f7cb4
JB		 14554 nla_nest_end(msg, reasons);
14555 }
14556
9c90a9f6 14557 genlmsg_end(msg, hdr);
cd8f7cb4 14558
68eb5503 14559 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14560 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 14561 return;
14562
14563 free_msg:
14564 nlmsg_free(msg);
14565}
14566EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
14567#endif
14568
3475b094
JM		 14569void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
14570 enum nl80211_tdls_operation oper,
14571 u16 reason_code, gfp_t gfp)
14572{
14573 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14574 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 14575 struct sk_buff *msg;
14576 void *hdr;
3475b094
JM		 14577
14578 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
14579 reason_code);
14580
14581 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14582 if (!msg)
14583 return;
14584
14585 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
14586 if (!hdr) {
14587 nlmsg_free(msg);
14588 return;
14589 }
14590
14591 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14592 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14593 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
14594 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
14595 (reason_code > 0 &&
14596 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
14597 goto nla_put_failure;
14598
9c90a9f6 14599 genlmsg_end(msg, hdr);
3475b094 14600
68eb5503 14601 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14602 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 14603 return;
14604
14605 nla_put_failure:
14606 genlmsg_cancel(msg, hdr);
14607 nlmsg_free(msg);
14608}
14609EXPORT_SYMBOL(cfg80211_tdls_oper_request);
14610
026331c4
JM		 14611static int nl80211_netlink_notify(struct notifier_block * nb,
14612 unsigned long state,
14613 void *_notify)
14614{
14615 struct netlink_notify *notify = _notify;
14616 struct cfg80211_registered_device *rdev;
14617 struct wireless_dev *wdev;
37c73b5f 14618 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 14619
8f815cdd 14620 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 14621 return NOTIFY_DONE;
14622
14623 rcu_read_lock();
14624
5e760230 14625 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 14626 bool schedule_destroy_work = false;
93a1e86c
JR		 14627 struct cfg80211_sched_scan_request *sched_scan_req =
14628 rcu_dereference(rdev->sched_scan_req);
14629
14630 if (sched_scan_req && notify->portid &&
753aacfd
JB		 14631 sched_scan_req->owner_nlportid == notify->portid) {
14632 sched_scan_req->owner_nlportid = 0;
14633
14634 if (rdev->ops->sched_scan_stop &&
14635 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
14636 schedule_work(&rdev->sched_scan_stop_wk);
14637 }
78f22b6a 14638
53873f13 14639 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 14640 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 14641
78f22b6a
JB		 14642 if (wdev->owner_nlportid == notify->portid)
14643 schedule_destroy_work = true;
bd2522b1
AZ		 14644 else if (wdev->conn_owner_nlportid == notify->portid)
14645 schedule_work(&wdev->disconnect_wk);
78f22b6a
JB		 14646 }
14647
37c73b5f
BG		 14648 spin_lock_bh(&rdev->beacon_registrations_lock);
14649 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
14650 list) {
14651 if (reg->nlportid == notify->portid) {
14652 list_del(&reg->list);
14653 kfree(reg);
14654 break;
14655 }
14656 }
14657 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 14658
14659 if (schedule_destroy_work) {
14660 struct cfg80211_iface_destroy *destroy;
14661
14662 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
14663 if (destroy) {
14664 destroy->nlportid = notify->portid;
14665 spin_lock(&rdev->destroy_list_lock);
14666 list_add(&destroy->list, &rdev->destroy_list);
14667 spin_unlock(&rdev->destroy_list_lock);
14668 schedule_work(&rdev->destroy_work);
14669 }
14670 }
5e760230 14671 }
026331c4
JM		 14672
14673 rcu_read_unlock();
14674
05050753
I		 14675 /*
14676 * It is possible that the user space process that is controlling the
14677 * indoor setting disappeared, so notify the regulatory core.
14678 */
14679 regulatory_netlink_notify(notify->portid);
6784c7db 14680 return NOTIFY_OK;
026331c4
JM		 14681}
14682
14683static struct notifier_block nl80211_netlink_notifier = {
14684 .notifier_call = nl80211_netlink_notify,
14685};
14686
355199e0
JM		 14687void cfg80211_ft_event(struct net_device *netdev,
14688 struct cfg80211_ft_event_params *ft_event)
14689{
14690 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 14691 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 14692 struct sk_buff *msg;
14693 void *hdr;
355199e0
JM		 14694
14695 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
14696
14697 if (!ft_event->target_ap)
14698 return;
14699
4ef8c1c9 14700 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
355199e0
JM		 14701 if (!msg)
14702 return;
14703
14704 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 14705 if (!hdr)
14706 goto out;
355199e0 14707
ae917c9f
JB		 14708 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14709 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14710 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
14711 goto out;
355199e0 14712
ae917c9f
JB		 14713 if (ft_event->ies &&
14714 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
14715 goto out;
14716 if (ft_event->ric_ies &&
14717 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
14718 ft_event->ric_ies))
14719 goto out;
355199e0 14720
9c90a9f6 14721 genlmsg_end(msg, hdr);
355199e0 14722
68eb5503 14723 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14724 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 14725 return;
14726 out:
14727 nlmsg_free(msg);
355199e0
JM		 14728}
14729EXPORT_SYMBOL(cfg80211_ft_event);
14730
5de17984
AS		 14731void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
14732{
14733 struct cfg80211_registered_device *rdev;
14734 struct sk_buff *msg;
14735 void *hdr;
14736 u32 nlportid;
14737
f26cbf40 14738 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 14739 if (!rdev->crit_proto_nlportid)
14740 return;
14741
14742 nlportid = rdev->crit_proto_nlportid;
14743 rdev->crit_proto_nlportid = 0;
14744
14745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14746 if (!msg)
14747 return;
14748
14749 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
14750 if (!hdr)
14751 goto nla_put_failure;
14752
14753 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14754 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14755 NL80211_ATTR_PAD))
5de17984
AS		 14756 goto nla_put_failure;
14757
14758 genlmsg_end(msg, hdr);
14759
14760 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14761 return;
14762
14763 nla_put_failure:
14764 if (hdr)
14765 genlmsg_cancel(msg, hdr);
14766 nlmsg_free(msg);
5de17984
AS		 14767}
14768EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
14769
348baf0e
JB		 14770void nl80211_send_ap_stopped(struct wireless_dev *wdev)
14771{
14772 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14773 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 14774 struct sk_buff *msg;
14775 void *hdr;
14776
14777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14778 if (!msg)
14779 return;
14780
14781 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
14782 if (!hdr)
14783 goto out;
14784
14785 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14786 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 14787 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14788 NL80211_ATTR_PAD))
348baf0e
JB		 14789 goto out;
14790
14791 genlmsg_end(msg, hdr);
14792
14793 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
14794 NL80211_MCGRP_MLME, GFP_KERNEL);
14795 return;
14796 out:
14797 nlmsg_free(msg);
14798}
14799
55682965
JB		 14800/* initialisation/exit functions */
14801
56989f6d 14802int __init nl80211_init(void)
55682965 14803{
0d63cbb5 14804 int err;
55682965 14805
489111e5 14806 err = genl_register_family(&nl80211_fam);
55682965
JB		 14807 if (err)
14808 return err;
14809
026331c4
JM		 14810 err = netlink_register_notifier(&nl80211_netlink_notifier);
14811 if (err)
14812 goto err_out;
14813
55682965
JB		 14814 return 0;
14815 err_out:
14816 genl_unregister_family(&nl80211_fam);
14817 return err;
14818}
14819
14820void nl80211_exit(void)
14821{
026331c4 14822 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 14823 genl_unregister_family(&nl80211_fam);
14824}
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