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nl80211: Fix mesh HT operation check
[mirror_ubuntu-bionic-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
0c9ca11b 6 * Copyright 2015-2016 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
AB		 400 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
401 [NL80211_ATTR_NAN_DUAL] = { .type = NLA_U8 },
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 },
55682965
JB		 408};
409
e31b8213 410/* policy for the key attributes */
b54452b0 411static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 412 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 413 [NL80211_KEY_IDX] = { .type = NLA_U8 },
414 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 415 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 416 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
417 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 418 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 419 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
420};
421
422/* policy for the key default flags */
423static const struct nla_policy
424nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
425 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
426 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 427};
428
f83ace3b 429#ifdef CONFIG_PM
ff1b6e69
JB		 430/* policy for WoWLAN attributes */
431static const struct nla_policy
432nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
433 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
435 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
436 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 437 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
440 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 441 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 442 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 443};
444
445static const struct nla_policy
446nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
447 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
448 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
449 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
450 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
451 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
452 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
453 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
454 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
455 },
456 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
457 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
458 },
459 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
460 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
461 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69 462};
f83ace3b 463#endif /* CONFIG_PM */
ff1b6e69 464
be29b99a
AK		 465/* policy for coalesce rule attributes */
466static const struct nla_policy
467nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
468 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
469 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
470 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
471};
472
e5497d76
JB		 473/* policy for GTK rekey offload attributes */
474static const struct nla_policy
475nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
476 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
477 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
478 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
479};
480
a1f1c21c
LC		 481static const struct nla_policy
482nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 483 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 484 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 485 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 486};
487
3b06d277
AS		 488static const struct nla_policy
489nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
490 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
491 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
492};
493
38de03d2
AS		 494static const struct nla_policy
495nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
496 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
497 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
498 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
499 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
500 },
501};
502
a442b761
AB		 503/* policy for NAN function attributes */
504static const struct nla_policy
505nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
506 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
507 [NL80211_NAN_FUNC_SERVICE_ID] = { .type = NLA_BINARY,
508 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
509 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
510 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
511 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
512 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
513 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
514 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
515 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
516 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
517 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
518 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
519 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
520 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
521 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
522 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
523 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
524};
525
526/* policy for Service Response Filter attributes */
527static const struct nla_policy
528nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
529 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
530 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
531 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
532 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
533 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
534};
535
97990a06
JB		 536static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
537 struct netlink_callback *cb,
538 struct cfg80211_registered_device **rdev,
539 struct wireless_dev **wdev)
a043897a 540{
97990a06 541 int err;
a043897a 542
97990a06 543 rtnl_lock();
a043897a 544
97990a06
JB		 545 if (!cb->args[0]) {
546 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da
JB		 547 genl_family_attrbuf(&nl80211_fam),
548 nl80211_fam.maxattr, nl80211_policy);
97990a06
JB		 549 if (err)
550 goto out_unlock;
67748893 551
c90c39da
JB		 552 *wdev = __cfg80211_wdev_from_attrs(
553 sock_net(skb->sk),
554 genl_family_attrbuf(&nl80211_fam));
97990a06
JB		 555 if (IS_ERR(*wdev)) {
556 err = PTR_ERR(*wdev);
557 goto out_unlock;
558 }
f26cbf40 559 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 560 /* 0 is the first index - add 1 to parse only once */
561 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 562 cb->args[1] = (*wdev)->identifier;
563 } else {
c319d50b
JB		 564 /* subtract the 1 again here */
565 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 566 struct wireless_dev *tmp;
67748893 567
97990a06
JB		 568 if (!wiphy) {
569 err = -ENODEV;
570 goto out_unlock;
571 }
f26cbf40 572 *rdev = wiphy_to_rdev(wiphy);
97990a06 573 *wdev = NULL;
67748893 574
53873f13 575 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 576 if (tmp->identifier == cb->args[1]) {
577 *wdev = tmp;
578 break;
579 }
580 }
67748893 581
97990a06
JB		 582 if (!*wdev) {
583 err = -ENODEV;
584 goto out_unlock;
585 }
67748893
JB		 586 }
587
67748893 588 return 0;
97990a06 589 out_unlock:
67748893
JB		 590 rtnl_unlock();
591 return err;
592}
593
97990a06 594static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 595{
67748893
JB		 596 rtnl_unlock();
597}
598
f4a11bb0
JB		 599/* IE validation */
600static bool is_valid_ie_attr(const struct nlattr *attr)
601{
602 const u8 *pos;
603 int len;
604
605 if (!attr)
606 return true;
607
608 pos = nla_data(attr);
609 len = nla_len(attr);
610
611 while (len) {
612 u8 elemlen;
613
614 if (len < 2)
615 return false;
616 len -= 2;
617
618 elemlen = pos[1];
619 if (elemlen > len)
620 return false;
621
622 len -= elemlen;
623 pos += 2 + elemlen;
624 }
625
626 return true;
627}
628
55682965 629/* message building helper */
15e47304 630static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 631 int flags, u8 cmd)
632{
633 /* since there is no private header just add the generic one */
15e47304 634 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 635}
636
5dab3b8a 637static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 638 struct ieee80211_channel *chan,
639 bool large)
5dab3b8a 640{
ea077c1c
RL		 641 /* Some channels must be completely excluded from the
642 * list to protect old user-space tools from breaking
643 */
644 if (!large && chan->flags &
645 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
646 return 0;
647
9360ffd1
DM		 648 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
649 chan->center_freq))
650 goto nla_put_failure;
5dab3b8a 651
9360ffd1
DM		 652 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
654 goto nla_put_failure;
8fe02e16
LR		 655 if (chan->flags & IEEE80211_CHAN_NO_IR) {
656 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
657 goto nla_put_failure;
658 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
659 goto nla_put_failure;
660 }
cdc89b97
JB		 661 if (chan->flags & IEEE80211_CHAN_RADAR) {
662 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
663 goto nla_put_failure;
664 if (large) {
665 u32 time;
666
667 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
668
669 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
670 chan->dfs_state))
671 goto nla_put_failure;
672 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
673 time))
674 goto nla_put_failure;
089027e5
JD		 675 if (nla_put_u32(msg,
676 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
677 chan->dfs_cac_ms))
678 goto nla_put_failure;
cdc89b97
JB		 679 }
680 }
5dab3b8a 681
fe1abafd
JB		 682 if (large) {
683 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
684 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
685 goto nla_put_failure;
686 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
687 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
688 goto nla_put_failure;
689 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
690 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
691 goto nla_put_failure;
692 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
693 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
694 goto nla_put_failure;
570dbde1
DS		 695 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
696 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
697 goto nla_put_failure;
06f207fc
AN		 698 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
699 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 700 goto nla_put_failure;
ea077c1c
RL		 701 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
702 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
703 goto nla_put_failure;
704 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
705 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
706 goto nla_put_failure;
fe1abafd
JB		 707 }
708
9360ffd1
DM		 709 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
710 DBM_TO_MBM(chan->max_power)))
711 goto nla_put_failure;
5dab3b8a
LR		 712
713 return 0;
714
715 nla_put_failure:
716 return -ENOBUFS;
717}
718
55682965
JB		 719/* netlink command implementations */
720
b9454e83
JB		 721struct key_parse {
722 struct key_params p;
723 int idx;
e31b8213 724 int type;
b9454e83 725 bool def, defmgmt;
dbd2fd65 726 bool def_uni, def_multi;
b9454e83
JB		 727};
728
729static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
730{
731 struct nlattr *tb[NL80211_KEY_MAX + 1];
732 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
733 nl80211_key_policy);
734 if (err)
735 return err;
736
737 k->def = !!tb[NL80211_KEY_DEFAULT];
738 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
739
dbd2fd65
JB		 740 if (k->def) {
741 k->def_uni = true;
742 k->def_multi = true;
743 }
744 if (k->defmgmt)
745 k->def_multi = true;
746
b9454e83
JB		 747 if (tb[NL80211_KEY_IDX])
748 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
749
750 if (tb[NL80211_KEY_DATA]) {
751 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
752 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
753 }
754
755 if (tb[NL80211_KEY_SEQ]) {
756 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
757 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
758 }
759
760 if (tb[NL80211_KEY_CIPHER])
761 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
762
e31b8213
JB		 763 if (tb[NL80211_KEY_TYPE]) {
764 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
765 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
766 return -EINVAL;
767 }
768
dbd2fd65
JB		 769 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
770 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 771
2da8f419
JB		 772 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
773 tb[NL80211_KEY_DEFAULT_TYPES],
774 nl80211_key_default_policy);
dbd2fd65
JB		 775 if (err)
776 return err;
777
778 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
779 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
780 }
781
b9454e83
JB		 782 return 0;
783}
784
785static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
786{
787 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
788 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
789 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
790 }
791
792 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
793 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
794 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
795 }
796
797 if (info->attrs[NL80211_ATTR_KEY_IDX])
798 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
799
800 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
801 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
802
803 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
804 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
805
dbd2fd65
JB		 806 if (k->def) {
807 k->def_uni = true;
808 k->def_multi = true;
809 }
810 if (k->defmgmt)
811 k->def_multi = true;
812
e31b8213
JB		 813 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
814 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
815 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
816 return -EINVAL;
817 }
818
dbd2fd65
JB		 819 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
820 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
821 int err = nla_parse_nested(
822 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
823 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
824 nl80211_key_default_policy);
825 if (err)
826 return err;
827
828 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
829 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
830 }
831
b9454e83
JB		 832 return 0;
833}
834
835static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
836{
837 int err;
838
839 memset(k, 0, sizeof(*k));
840 k->idx = -1;
e31b8213 841 k->type = -1;
b9454e83
JB		 842
843 if (info->attrs[NL80211_ATTR_KEY])
844 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
845 else
846 err = nl80211_parse_key_old(info, k);
847
848 if (err)
849 return err;
850
851 if (k->def && k->defmgmt)
852 return -EINVAL;
853
dbd2fd65
JB		 854 if (k->defmgmt) {
855 if (k->def_uni || !k->def_multi)
856 return -EINVAL;
857 }
858
b9454e83
JB		 859 if (k->idx != -1) {
860 if (k->defmgmt) {
861 if (k->idx < 4 || k->idx > 5)
862 return -EINVAL;
863 } else if (k->def) {
864 if (k->idx < 0 || k->idx > 3)
865 return -EINVAL;
866 } else {
867 if (k->idx < 0 || k->idx > 5)
868 return -EINVAL;
869 }
870 }
871
872 return 0;
873}
874
fffd0934
JB		 875static struct cfg80211_cached_keys *
876nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 877 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 878{
879 struct key_parse parse;
880 struct nlattr *key;
881 struct cfg80211_cached_keys *result;
882 int rem, err, def = 0;
f1c1f17a
JB		 883 bool have_key = false;
884
885 nla_for_each_nested(key, keys, rem) {
886 have_key = true;
887 break;
888 }
889
890 if (!have_key)
891 return NULL;
fffd0934
JB		 892
893 result = kzalloc(sizeof(*result), GFP_KERNEL);
894 if (!result)
895 return ERR_PTR(-ENOMEM);
896
897 result->def = -1;
fffd0934
JB		 898
899 nla_for_each_nested(key, keys, rem) {
900 memset(&parse, 0, sizeof(parse));
901 parse.idx = -1;
902
903 err = nl80211_parse_key_new(key, &parse);
904 if (err)
905 goto error;
906 err = -EINVAL;
907 if (!parse.p.key)
908 goto error;
42ee231c 909 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 910 goto error;
911 if (parse.def) {
912 if (def)
913 goto error;
914 def = 1;
915 result->def = parse.idx;
dbd2fd65
JB		 916 if (!parse.def_uni || !parse.def_multi)
917 goto error;
fffd0934
JB		 918 } else if (parse.defmgmt)
919 goto error;
920 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 921 parse.idx, false, NULL);
fffd0934
JB		 922 if (err)
923 goto error;
386b1f27
JB		 924 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
925 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
926 err = -EINVAL;
927 goto error;
928 }
fffd0934
JB		 929 result->params[parse.idx].cipher = parse.p.cipher;
930 result->params[parse.idx].key_len = parse.p.key_len;
931 result->params[parse.idx].key = result->data[parse.idx];
932 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 933
386b1f27
JB		 934 /* must be WEP key if we got here */
935 if (no_ht)
936 *no_ht = true;
fffd0934
JB		 937 }
938
f1c1f17a
JB		 939 if (result->def < 0) {
940 err = -EINVAL;
941 goto error;
942 }
943
fffd0934
JB		 944 return result;
945 error:
946 kfree(result);
947 return ERR_PTR(err);
948}
949
950static int nl80211_key_allowed(struct wireless_dev *wdev)
951{
952 ASSERT_WDEV_LOCK(wdev);
953
fffd0934
JB		 954 switch (wdev->iftype) {
955 case NL80211_IFTYPE_AP:
956 case NL80211_IFTYPE_AP_VLAN:
074ac8df 957 case NL80211_IFTYPE_P2P_GO:
ff973af7 958 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 959 break;
960 case NL80211_IFTYPE_ADHOC:
fffd0934 961 case NL80211_IFTYPE_STATION:
074ac8df 962 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 963 if (!wdev->current_bss)
fffd0934
JB		 964 return -ENOLINK;
965 break;
de4fcbad 966 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 967 case NL80211_IFTYPE_OCB:
de4fcbad 968 case NL80211_IFTYPE_MONITOR:
cb3b7d87 969 case NL80211_IFTYPE_NAN:
de4fcbad
JB		 970 case NL80211_IFTYPE_P2P_DEVICE:
971 case NL80211_IFTYPE_WDS:
972 case NUM_NL80211_IFTYPES:
fffd0934
JB		 973 return -EINVAL;
974 }
975
976 return 0;
977}
978
664834de
JM		 979static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
980 struct nlattr *tb)
981{
982 struct ieee80211_channel *chan;
983
984 if (tb == NULL)
985 return NULL;
986 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
987 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
988 return NULL;
989 return chan;
990}
991
7527a782
JB		 992static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
993{
994 struct nlattr *nl_modes = nla_nest_start(msg, attr);
995 int i;
996
997 if (!nl_modes)
998 goto nla_put_failure;
999
1000 i = 0;
1001 while (ifmodes) {
9360ffd1
DM		 1002 if ((ifmodes & 1) && nla_put_flag(msg, i))
1003 goto nla_put_failure;
7527a782
JB		 1004 ifmodes >>= 1;
1005 i++;
1006 }
1007
1008 nla_nest_end(msg, nl_modes);
1009 return 0;
1010
1011nla_put_failure:
1012 return -ENOBUFS;
1013}
1014
1015static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 1016 struct sk_buff *msg,
1017 bool large)
7527a782
JB		 1018{
1019 struct nlattr *nl_combis;
1020 int i, j;
1021
1022 nl_combis = nla_nest_start(msg,
1023 NL80211_ATTR_INTERFACE_COMBINATIONS);
1024 if (!nl_combis)
1025 goto nla_put_failure;
1026
1027 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1028 const struct ieee80211_iface_combination *c;
1029 struct nlattr *nl_combi, *nl_limits;
1030
1031 c = &wiphy->iface_combinations[i];
1032
1033 nl_combi = nla_nest_start(msg, i + 1);
1034 if (!nl_combi)
1035 goto nla_put_failure;
1036
1037 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1038 if (!nl_limits)
1039 goto nla_put_failure;
1040
1041 for (j = 0; j < c->n_limits; j++) {
1042 struct nlattr *nl_limit;
1043
1044 nl_limit = nla_nest_start(msg, j + 1);
1045 if (!nl_limit)
1046 goto nla_put_failure;
9360ffd1
DM		 1047 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1048 c->limits[j].max))
1049 goto nla_put_failure;
7527a782
JB		 1050 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1051 c->limits[j].types))
1052 goto nla_put_failure;
1053 nla_nest_end(msg, nl_limit);
1054 }
1055
1056 nla_nest_end(msg, nl_limits);
1057
9360ffd1
DM		 1058 if (c->beacon_int_infra_match &&
1059 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1060 goto nla_put_failure;
1061 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1062 c->num_different_channels) ||
1063 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1064 c->max_interfaces))
1065 goto nla_put_failure;
cdc89b97 1066 if (large &&
8c48b50a
FF		 1067 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1068 c->radar_detect_widths) ||
1069 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1070 c->radar_detect_regions)))
cdc89b97 1071 goto nla_put_failure;
0c317a02
PK		 1072 if (c->beacon_int_min_gcd &&
1073 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1074 c->beacon_int_min_gcd))
1075 goto nla_put_failure;
7527a782
JB		 1076
1077 nla_nest_end(msg, nl_combi);
1078 }
1079
1080 nla_nest_end(msg, nl_combis);
1081
1082 return 0;
1083nla_put_failure:
1084 return -ENOBUFS;
1085}
1086
3713b4e3 1087#ifdef CONFIG_PM
b56cf720
JB		 1088static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1089 struct sk_buff *msg)
1090{
964dc9e2 1091 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1092 struct nlattr *nl_tcp;
1093
1094 if (!tcp)
1095 return 0;
1096
1097 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1098 if (!nl_tcp)
1099 return -ENOBUFS;
1100
1101 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1102 tcp->data_payload_max))
1103 return -ENOBUFS;
1104
1105 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1106 tcp->data_payload_max))
1107 return -ENOBUFS;
1108
1109 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1110 return -ENOBUFS;
1111
1112 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1113 sizeof(*tcp->tok), tcp->tok))
1114 return -ENOBUFS;
1115
1116 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1117 tcp->data_interval_max))
1118 return -ENOBUFS;
1119
1120 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1121 tcp->wake_payload_max))
1122 return -ENOBUFS;
1123
1124 nla_nest_end(msg, nl_tcp);
1125 return 0;
1126}
1127
3713b4e3 1128static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1129 struct cfg80211_registered_device *rdev,
b56cf720 1130 bool large)
55682965 1131{
3713b4e3 1132 struct nlattr *nl_wowlan;
55682965 1133
1b8ec87a 1134 if (!rdev->wiphy.wowlan)
3713b4e3 1135 return 0;
55682965 1136
3713b4e3
JB		 1137 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1138 if (!nl_wowlan)
1139 return -ENOBUFS;
9360ffd1 1140
1b8ec87a 1141 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1142 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1143 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1144 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1145 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1146 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1147 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1148 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1149 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1150 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1151 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1152 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1153 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1154 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1155 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1156 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1157 return -ENOBUFS;
9360ffd1 1158
1b8ec87a 1159 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1160 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1161 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1162 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1163 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1164 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1165 };
9360ffd1 1166
3713b4e3
JB		 1167 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1168 sizeof(pat), &pat))
1169 return -ENOBUFS;
1170 }
9360ffd1 1171
75453ccb
LC		 1172 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1173 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1174 rdev->wiphy.wowlan->max_nd_match_sets))
1175 return -ENOBUFS;
1176
1b8ec87a 1177 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1178 return -ENOBUFS;
1179
3713b4e3 1180 nla_nest_end(msg, nl_wowlan);
9360ffd1 1181
3713b4e3
JB		 1182 return 0;
1183}
1184#endif
9360ffd1 1185
be29b99a 1186static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1187 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1188{
1189 struct nl80211_coalesce_rule_support rule;
1190
1b8ec87a 1191 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1192 return 0;
1193
1b8ec87a
ZG		 1194 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1195 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1196 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1197 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1198 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1199 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1200
1201 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1202 return -ENOBUFS;
1203
1204 return 0;
1205}
1206
3713b4e3
JB		 1207static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1208 struct ieee80211_supported_band *sband)
1209{
1210 struct nlattr *nl_rates, *nl_rate;
1211 struct ieee80211_rate *rate;
1212 int i;
87bbbe22 1213
3713b4e3
JB		 1214 /* add HT info */
1215 if (sband->ht_cap.ht_supported &&
1216 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1217 sizeof(sband->ht_cap.mcs),
1218 &sband->ht_cap.mcs) ||
1219 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1220 sband->ht_cap.cap) ||
1221 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1222 sband->ht_cap.ampdu_factor) ||
1223 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1224 sband->ht_cap.ampdu_density)))
1225 return -ENOBUFS;
afe0cbf8 1226
3713b4e3
JB		 1227 /* add VHT info */
1228 if (sband->vht_cap.vht_supported &&
1229 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1230 sizeof(sband->vht_cap.vht_mcs),
1231 &sband->vht_cap.vht_mcs) ||
1232 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1233 sband->vht_cap.cap)))
1234 return -ENOBUFS;
f59ac048 1235
3713b4e3
JB		 1236 /* add bitrates */
1237 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1238 if (!nl_rates)
1239 return -ENOBUFS;
ee688b00 1240
3713b4e3
JB		 1241 for (i = 0; i < sband->n_bitrates; i++) {
1242 nl_rate = nla_nest_start(msg, i);
1243 if (!nl_rate)
1244 return -ENOBUFS;
ee688b00 1245
3713b4e3
JB		 1246 rate = &sband->bitrates[i];
1247 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1248 rate->bitrate))
1249 return -ENOBUFS;
1250 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1251 nla_put_flag(msg,
1252 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1253 return -ENOBUFS;
ee688b00 1254
3713b4e3
JB		 1255 nla_nest_end(msg, nl_rate);
1256 }
d51626df 1257
3713b4e3 1258 nla_nest_end(msg, nl_rates);
bf0c111e 1259
3713b4e3
JB		 1260 return 0;
1261}
ee688b00 1262
3713b4e3
JB		 1263static int
1264nl80211_send_mgmt_stypes(struct sk_buff *msg,
1265 const struct ieee80211_txrx_stypes *mgmt_stypes)
1266{
1267 u16 stypes;
1268 struct nlattr *nl_ftypes, *nl_ifs;
1269 enum nl80211_iftype ift;
1270 int i;
ee688b00 1271
3713b4e3
JB		 1272 if (!mgmt_stypes)
1273 return 0;
5dab3b8a 1274
3713b4e3
JB		 1275 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1276 if (!nl_ifs)
1277 return -ENOBUFS;
e2f367f2 1278
3713b4e3
JB		 1279 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1280 nl_ftypes = nla_nest_start(msg, ift);
1281 if (!nl_ftypes)
1282 return -ENOBUFS;
1283 i = 0;
1284 stypes = mgmt_stypes[ift].tx;
1285 while (stypes) {
1286 if ((stypes & 1) &&
1287 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1288 (i << 4) | IEEE80211_FTYPE_MGMT))
1289 return -ENOBUFS;
1290 stypes >>= 1;
1291 i++;
ee688b00 1292 }
3713b4e3
JB		 1293 nla_nest_end(msg, nl_ftypes);
1294 }
ee688b00 1295
3713b4e3 1296 nla_nest_end(msg, nl_ifs);
ee688b00 1297
3713b4e3
JB		 1298 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1299 if (!nl_ifs)
1300 return -ENOBUFS;
ee688b00 1301
3713b4e3
JB		 1302 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1303 nl_ftypes = nla_nest_start(msg, ift);
1304 if (!nl_ftypes)
1305 return -ENOBUFS;
1306 i = 0;
1307 stypes = mgmt_stypes[ift].rx;
1308 while (stypes) {
1309 if ((stypes & 1) &&
1310 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1311 (i << 4) | IEEE80211_FTYPE_MGMT))
1312 return -ENOBUFS;
1313 stypes >>= 1;
1314 i++;
1315 }
1316 nla_nest_end(msg, nl_ftypes);
1317 }
1318 nla_nest_end(msg, nl_ifs);
ee688b00 1319
3713b4e3
JB		 1320 return 0;
1321}
ee688b00 1322
1794899e
JB		 1323#define CMD(op, n) \
1324 do { \
1325 if (rdev->ops->op) { \
1326 i++; \
1327 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1328 goto nla_put_failure; \
1329 } \
1330 } while (0)
1331
1332static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1333 struct sk_buff *msg)
1334{
1335 int i = 0;
1336
1337 /*
1338 * do *NOT* add anything into this function, new things need to be
1339 * advertised only to new versions of userspace that can deal with
1340 * the split (and they can't possibly care about new features...
1341 */
1342 CMD(add_virtual_intf, NEW_INTERFACE);
1343 CMD(change_virtual_intf, SET_INTERFACE);
1344 CMD(add_key, NEW_KEY);
1345 CMD(start_ap, START_AP);
1346 CMD(add_station, NEW_STATION);
1347 CMD(add_mpath, NEW_MPATH);
1348 CMD(update_mesh_config, SET_MESH_CONFIG);
1349 CMD(change_bss, SET_BSS);
1350 CMD(auth, AUTHENTICATE);
1351 CMD(assoc, ASSOCIATE);
1352 CMD(deauth, DEAUTHENTICATE);
1353 CMD(disassoc, DISASSOCIATE);
1354 CMD(join_ibss, JOIN_IBSS);
1355 CMD(join_mesh, JOIN_MESH);
1356 CMD(set_pmksa, SET_PMKSA);
1357 CMD(del_pmksa, DEL_PMKSA);
1358 CMD(flush_pmksa, FLUSH_PMKSA);
1359 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1360 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1361 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1362 CMD(mgmt_tx, FRAME);
1363 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1364 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1365 i++;
1366 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1367 goto nla_put_failure;
1368 }
1369 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1370 rdev->ops->join_mesh) {
1371 i++;
1372 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1373 goto nla_put_failure;
1374 }
1375 CMD(set_wds_peer, SET_WDS_PEER);
1376 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1377 CMD(tdls_mgmt, TDLS_MGMT);
1378 CMD(tdls_oper, TDLS_OPER);
1379 }
1380 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1381 CMD(sched_scan_start, START_SCHED_SCAN);
1382 CMD(probe_client, PROBE_CLIENT);
1383 CMD(set_noack_map, SET_NOACK_MAP);
1384 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1385 i++;
1386 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1387 goto nla_put_failure;
1388 }
1389 CMD(start_p2p_device, START_P2P_DEVICE);
1390 CMD(set_mcast_rate, SET_MCAST_RATE);
1391#ifdef CONFIG_NL80211_TESTMODE
1392 CMD(testmode_cmd, TESTMODE);
1393#endif
1394
1395 if (rdev->ops->connect || rdev->ops->auth) {
1396 i++;
1397 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1398 goto nla_put_failure;
1399 }
1400
1401 if (rdev->ops->disconnect || rdev->ops->deauth) {
1402 i++;
1403 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1404 goto nla_put_failure;
1405 }
1406
1407 return i;
1408 nla_put_failure:
1409 return -ENOBUFS;
1410}
1411
86e8cf98
JB		 1412struct nl80211_dump_wiphy_state {
1413 s64 filter_wiphy;
1414 long start;
019ae3a9 1415 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1416 bool split;
1417};
1418
1b8ec87a 1419static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1420 enum nl80211_commands cmd,
3713b4e3 1421 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1422 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1423{
1424 void *hdr;
1425 struct nlattr *nl_bands, *nl_band;
1426 struct nlattr *nl_freqs, *nl_freq;
1427 struct nlattr *nl_cmds;
57fbcce3 1428 enum nl80211_band band;
3713b4e3
JB		 1429 struct ieee80211_channel *chan;
1430 int i;
1431 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1432 rdev->wiphy.mgmt_stypes;
fe1abafd 1433 u32 features;
ee688b00 1434
3bb20556 1435 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1436 if (!hdr)
1437 return -ENOBUFS;
ee688b00 1438
86e8cf98
JB		 1439 if (WARN_ON(!state))
1440 return -EINVAL;
ee688b00 1441
1b8ec87a 1442 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1443 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1444 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1445 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1446 cfg80211_rdev_list_generation))
8fdc621d
JB		 1447 goto nla_put_failure;
1448
3bb20556
JB		 1449 if (cmd != NL80211_CMD_NEW_WIPHY)
1450 goto finish;
1451
86e8cf98 1452 switch (state->split_start) {
3713b4e3
JB		 1453 case 0:
1454 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1455 rdev->wiphy.retry_short) ||
3713b4e3 1456 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1457 rdev->wiphy.retry_long) ||
3713b4e3 1458 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1459 rdev->wiphy.frag_threshold) ||
3713b4e3 1460 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1461 rdev->wiphy.rts_threshold) ||
3713b4e3 1462 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1463 rdev->wiphy.coverage_class) ||
3713b4e3 1464 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1465 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1466 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1467 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1468 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1469 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1470 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1471 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1472 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1473 rdev->wiphy.max_match_sets) ||
1474 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1475 rdev->wiphy.max_sched_scan_plans) ||
1476 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1477 rdev->wiphy.max_sched_scan_plan_interval) ||
1478 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1479 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1480 goto nla_put_failure;
3713b4e3 1481
1b8ec87a 1482 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1483 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1484 goto nla_put_failure;
1b8ec87a 1485 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1486 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1487 goto nla_put_failure;
1b8ec87a 1488 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1489 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1490 goto nla_put_failure;
1b8ec87a 1491 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1492 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1493 goto nla_put_failure;
1b8ec87a 1494 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1495 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1496 goto nla_put_failure;
1b8ec87a 1497 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1498 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1499 goto nla_put_failure;
86e8cf98
JB		 1500 state->split_start++;
1501 if (state->split)
3713b4e3
JB		 1502 break;
1503 case 1:
1504 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1505 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1506 rdev->wiphy.cipher_suites))
3713b4e3 1507 goto nla_put_failure;
4745fc09 1508
3713b4e3 1509 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1510 rdev->wiphy.max_num_pmkids))
3713b4e3 1511 goto nla_put_failure;
b23aa676 1512
1b8ec87a 1513 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1514 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1515 goto nla_put_failure;
b23aa676 1516
3713b4e3 1517 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1518 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1519 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1520 rdev->wiphy.available_antennas_rx))
9360ffd1 1521 goto nla_put_failure;
b23aa676 1522
1b8ec87a 1523 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1524 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1525 rdev->wiphy.probe_resp_offload))
3713b4e3 1526 goto nla_put_failure;
8fdc621d 1527
1b8ec87a
ZG		 1528 if ((rdev->wiphy.available_antennas_tx ||
1529 rdev->wiphy.available_antennas_rx) &&
1530 rdev->ops->get_antenna) {
3713b4e3
JB		 1531 u32 tx_ant = 0, rx_ant = 0;
1532 int res;
7a087e74 1533
1b8ec87a 1534 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1535 if (!res) {
1536 if (nla_put_u32(msg,
1537 NL80211_ATTR_WIPHY_ANTENNA_TX,
1538 tx_ant) ||
1539 nla_put_u32(msg,
1540 NL80211_ATTR_WIPHY_ANTENNA_RX,
1541 rx_ant))
1542 goto nla_put_failure;
1543 }
1544 }
a293911d 1545
86e8cf98
JB		 1546 state->split_start++;
1547 if (state->split)
3713b4e3
JB		 1548 break;
1549 case 2:
1550 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1551 rdev->wiphy.interface_modes))
3713b4e3 1552 goto nla_put_failure;
86e8cf98
JB		 1553 state->split_start++;
1554 if (state->split)
3713b4e3
JB		 1555 break;
1556 case 3:
1557 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1558 if (!nl_bands)
1559 goto nla_put_failure;
f7ca38df 1560
86e8cf98 1561 for (band = state->band_start;
57fbcce3 1562 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1563 struct ieee80211_supported_band *sband;
2e161f78 1564
1b8ec87a 1565 sband = rdev->wiphy.bands[band];
2e161f78 1566
3713b4e3
JB		 1567 if (!sband)
1568 continue;
1569
1570 nl_band = nla_nest_start(msg, band);
1571 if (!nl_band)
2e161f78 1572 goto nla_put_failure;
3713b4e3 1573
86e8cf98 1574 switch (state->chan_start) {
3713b4e3
JB		 1575 case 0:
1576 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1577 goto nla_put_failure;
86e8cf98
JB		 1578 state->chan_start++;
1579 if (state->split)
3713b4e3
JB		 1580 break;
1581 default:
1582 /* add frequencies */
1583 nl_freqs = nla_nest_start(
1584 msg, NL80211_BAND_ATTR_FREQS);
1585 if (!nl_freqs)
1586 goto nla_put_failure;
1587
86e8cf98 1588 for (i = state->chan_start - 1;
3713b4e3
JB		 1589 i < sband->n_channels;
1590 i++) {
1591 nl_freq = nla_nest_start(msg, i);
1592 if (!nl_freq)
1593 goto nla_put_failure;
1594
1595 chan = &sband->channels[i];
1596
86e8cf98
JB		 1597 if (nl80211_msg_put_channel(
1598 msg, chan,
1599 state->split))
3713b4e3
JB		 1600 goto nla_put_failure;
1601
1602 nla_nest_end(msg, nl_freq);
86e8cf98 1603 if (state->split)
3713b4e3
JB		 1604 break;
1605 }
1606 if (i < sband->n_channels)
86e8cf98 1607 state->chan_start = i + 2;
3713b4e3 1608 else
86e8cf98 1609 state->chan_start = 0;
3713b4e3
JB		 1610 nla_nest_end(msg, nl_freqs);
1611 }
1612
1613 nla_nest_end(msg, nl_band);
1614
86e8cf98 1615 if (state->split) {
3713b4e3 1616 /* start again here */
86e8cf98 1617 if (state->chan_start)
3713b4e3
JB		 1618 band--;
1619 break;
2e161f78 1620 }
2e161f78 1621 }
3713b4e3 1622 nla_nest_end(msg, nl_bands);
2e161f78 1623
57fbcce3 1624 if (band < NUM_NL80211_BANDS)
86e8cf98 1625 state->band_start = band + 1;
3713b4e3 1626 else
86e8cf98 1627 state->band_start = 0;
74b70a4e 1628
3713b4e3 1629 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1630 if (state->band_start == 0 && state->chan_start == 0)
1631 state->split_start++;
1632 if (state->split)
3713b4e3
JB		 1633 break;
1634 case 4:
1635 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1636 if (!nl_cmds)
2e161f78
JB		 1637 goto nla_put_failure;
1638
1794899e
JB		 1639 i = nl80211_add_commands_unsplit(rdev, msg);
1640 if (i < 0)
1641 goto nla_put_failure;
86e8cf98 1642 if (state->split) {
5de17984
AS		 1643 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1644 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1645 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1646 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1647 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1648 if (rdev->wiphy.features &
1649 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1650 CMD(add_tx_ts, ADD_TX_TS);
ce0ce13a 1651 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
088e8df8 1652 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
5de17984 1653 }
3713b4e3 1654#undef CMD
ff1b6e69 1655
3713b4e3 1656 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1657 state->split_start++;
1658 if (state->split)
3713b4e3
JB		 1659 break;
1660 case 5:
1b8ec87a
ZG		 1661 if (rdev->ops->remain_on_channel &&
1662 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1663 nla_put_u32(msg,
1664 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1665 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1666 goto nla_put_failure;
1667
1b8ec87a 1668 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1669 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1670 goto nla_put_failure;
1671
1672 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1673 goto nla_put_failure;
86e8cf98
JB		 1674 state->split_start++;
1675 if (state->split)
3713b4e3
JB		 1676 break;
1677 case 6:
1678#ifdef CONFIG_PM
1b8ec87a 1679 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1680 goto nla_put_failure;
86e8cf98
JB		 1681 state->split_start++;
1682 if (state->split)
3713b4e3
JB		 1683 break;
1684#else
86e8cf98 1685 state->split_start++;
dfb89c56 1686#endif
3713b4e3
JB		 1687 case 7:
1688 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1689 rdev->wiphy.software_iftypes))
3713b4e3 1690 goto nla_put_failure;
ff1b6e69 1691
1b8ec87a 1692 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1693 state->split))
3713b4e3 1694 goto nla_put_failure;
7527a782 1695
86e8cf98
JB		 1696 state->split_start++;
1697 if (state->split)
3713b4e3
JB		 1698 break;
1699 case 8:
1b8ec87a 1700 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1701 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1702 rdev->wiphy.ap_sme_capa))
3713b4e3 1703 goto nla_put_failure;
7527a782 1704
1b8ec87a 1705 features = rdev->wiphy.features;
fe1abafd
JB		 1706 /*
1707 * We can only add the per-channel limit information if the
1708 * dump is split, otherwise it makes it too big. Therefore
1709 * only advertise it in that case.
1710 */
86e8cf98 1711 if (state->split)
fe1abafd
JB		 1712 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1713 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1714 goto nla_put_failure;
562a7480 1715
1b8ec87a 1716 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1717 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1718 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1719 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1720 goto nla_put_failure;
1f074bd8 1721
1b8ec87a
ZG		 1722 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1723 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1724 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1725 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1726 goto nla_put_failure;
7e7c8926 1727
3713b4e3
JB		 1728 /*
1729 * Any information below this point is only available to
1730 * applications that can deal with it being split. This
1731 * helps ensure that newly added capabilities don't break
1732 * older tools by overrunning their buffers.
1733 *
1734 * We still increment split_start so that in the split
1735 * case we'll continue with more data in the next round,
1736 * but break unconditionally so unsplit data stops here.
1737 */
86e8cf98 1738 state->split_start++;
3713b4e3
JB		 1739 break;
1740 case 9:
1b8ec87a 1741 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1742 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1743 rdev->wiphy.extended_capabilities_len,
1744 rdev->wiphy.extended_capabilities) ||
fe1abafd 1745 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1746 rdev->wiphy.extended_capabilities_len,
1747 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1748 goto nla_put_failure;
a50df0c4 1749
1b8ec87a 1750 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1751 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1752 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1753 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1754 goto nla_put_failure;
1755
be29b99a
AK		 1756 state->split_start++;
1757 break;
1758 case 10:
1b8ec87a 1759 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1760 goto nla_put_failure;
1761
1b8ec87a 1762 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1763 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1764 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1765 goto nla_put_failure;
b43504cf 1766
1b8ec87a 1767 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1768 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1769 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1770 goto nla_put_failure;
1771
ad7e718c
JB		 1772 state->split_start++;
1773 break;
1774 case 11:
1b8ec87a 1775 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1776 const struct nl80211_vendor_cmd_info *info;
1777 struct nlattr *nested;
1778
1779 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1780 if (!nested)
1781 goto nla_put_failure;
1782
1b8ec87a
ZG		 1783 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1784 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1785 if (nla_put(msg, i + 1, sizeof(*info), info))
1786 goto nla_put_failure;
1787 }
1788 nla_nest_end(msg, nested);
1789 }
1790
1b8ec87a 1791 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1792 const struct nl80211_vendor_cmd_info *info;
1793 struct nlattr *nested;
ad7e718c 1794
567ffc35
JB		 1795 nested = nla_nest_start(msg,
1796 NL80211_ATTR_VENDOR_EVENTS);
1797 if (!nested)
ad7e718c 1798 goto nla_put_failure;
567ffc35 1799
1b8ec87a
ZG		 1800 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1801 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1802 if (nla_put(msg, i + 1, sizeof(*info), info))
1803 goto nla_put_failure;
1804 }
1805 nla_nest_end(msg, nested);
1806 }
9a774c78
AO		 1807 state->split_start++;
1808 break;
1809 case 12:
1810 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1811 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1812 rdev->wiphy.max_num_csa_counters))
1813 goto nla_put_failure;
01e0daa4 1814
1bdd716c
AN		 1815 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1816 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1817 goto nla_put_failure;
1818
d75bb06b
GKS		 1819 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1820 sizeof(rdev->wiphy.ext_features),
1821 rdev->wiphy.ext_features))
1822 goto nla_put_failure;
1823
38de03d2
AS		 1824 if (rdev->wiphy.bss_select_support) {
1825 struct nlattr *nested;
1826 u32 bss_select_support = rdev->wiphy.bss_select_support;
1827
1828 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1829 if (!nested)
1830 goto nla_put_failure;
1831
1832 i = 0;
1833 while (bss_select_support) {
1834 if ((bss_select_support & 1) &&
1835 nla_put_flag(msg, i))
1836 goto nla_put_failure;
1837 i++;
1838 bss_select_support >>= 1;
1839 }
1840 nla_nest_end(msg, nested);
1841 }
1842
019ae3a9
KV		 1843 state->split_start++;
1844 break;
1845 case 13:
1846 if (rdev->wiphy.num_iftype_ext_capab &&
1847 rdev->wiphy.iftype_ext_capab) {
1848 struct nlattr *nested_ext_capab, *nested;
1849
1850 nested = nla_nest_start(msg,
1851 NL80211_ATTR_IFTYPE_EXT_CAPA);
1852 if (!nested)
1853 goto nla_put_failure;
1854
1855 for (i = state->capa_start;
1856 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1857 const struct wiphy_iftype_ext_capab *capab;
1858
1859 capab = &rdev->wiphy.iftype_ext_capab[i];
1860
1861 nested_ext_capab = nla_nest_start(msg, i);
1862 if (!nested_ext_capab ||
1863 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1864 capab->iftype) ||
1865 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1866 capab->extended_capabilities_len,
1867 capab->extended_capabilities) ||
1868 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1869 capab->extended_capabilities_len,
1870 capab->extended_capabilities_mask))
1871 goto nla_put_failure;
1872
1873 nla_nest_end(msg, nested_ext_capab);
1874 if (state->split)
1875 break;
1876 }
1877 nla_nest_end(msg, nested);
1878 if (i < rdev->wiphy.num_iftype_ext_capab) {
1879 state->capa_start = i + 1;
1880 break;
1881 }
1882 }
1883
3713b4e3 1884 /* done */
86e8cf98 1885 state->split_start = 0;
3713b4e3
JB		 1886 break;
1887 }
3bb20556 1888 finish:
053c095a
JB		 1889 genlmsg_end(msg, hdr);
1890 return 0;
55682965
JB		 1891
1892 nla_put_failure:
bc3ed28c
TG		 1893 genlmsg_cancel(msg, hdr);
1894 return -EMSGSIZE;
55682965
JB		 1895}
1896
86e8cf98
JB		 1897static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1898 struct netlink_callback *cb,
1899 struct nl80211_dump_wiphy_state *state)
1900{
c90c39da 1901 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
86e8cf98
JB		 1902 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1903 tb, nl80211_fam.maxattr, nl80211_policy);
1904 /* ignore parse errors for backward compatibility */
1905 if (ret)
1906 return 0;
1907
1908 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1909 if (tb[NL80211_ATTR_WIPHY])
1910 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1911 if (tb[NL80211_ATTR_WDEV])
1912 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1913 if (tb[NL80211_ATTR_IFINDEX]) {
1914 struct net_device *netdev;
1915 struct cfg80211_registered_device *rdev;
1916 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1917
7f2b8562 1918 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1919 if (!netdev)
1920 return -ENODEV;
1921 if (netdev->ieee80211_ptr) {
f26cbf40 1922 rdev = wiphy_to_rdev(
86e8cf98
JB		 1923 netdev->ieee80211_ptr->wiphy);
1924 state->filter_wiphy = rdev->wiphy_idx;
1925 }
86e8cf98
JB		 1926 }
1927
1928 return 0;
1929}
1930
55682965
JB		 1931static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1932{
645e77de 1933 int idx = 0, ret;
86e8cf98 1934 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1935 struct cfg80211_registered_device *rdev;
3a5a423b 1936
5fe231e8 1937 rtnl_lock();
86e8cf98
JB		 1938 if (!state) {
1939 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1940 if (!state) {
1941 rtnl_unlock();
86e8cf98 1942 return -ENOMEM;
3713b4e3 1943 }
86e8cf98
JB		 1944 state->filter_wiphy = -1;
1945 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1946 if (ret) {
1947 kfree(state);
1948 rtnl_unlock();
1949 return ret;
3713b4e3 1950 }
86e8cf98 1951 cb->args[0] = (long)state;
3713b4e3
JB		 1952 }
1953
1b8ec87a
ZG		 1954 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1955 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1956 continue;
86e8cf98 1957 if (++idx <= state->start)
55682965 1958 continue;
86e8cf98 1959 if (state->filter_wiphy != -1 &&
1b8ec87a 1960 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1961 continue;
1962 /* attempt to fit multiple wiphy data chunks into the skb */
1963 do {
3bb20556
JB		 1964 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1965 skb,
3713b4e3
JB		 1966 NETLINK_CB(cb->skb).portid,
1967 cb->nlh->nlmsg_seq,
86e8cf98 1968 NLM_F_MULTI, state);
3713b4e3
JB		 1969 if (ret < 0) {
1970 /*
1971 * If sending the wiphy data didn't fit (ENOBUFS
1972 * or EMSGSIZE returned), this SKB is still
1973 * empty (so it's not too big because another
1974 * wiphy dataset is already in the skb) and
1975 * we've not tried to adjust the dump allocation
1976 * yet ... then adjust the alloc size to be
1977 * bigger, and return 1 but with the empty skb.
1978 * This results in an empty message being RX'ed
1979 * in userspace, but that is ignored.
1980 *
1981 * We can then retry with the larger buffer.
1982 */
1983 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1984 !skb->len && !state->split &&
3713b4e3
JB		 1985 cb->min_dump_alloc < 4096) {
1986 cb->min_dump_alloc = 4096;
f12cb289 1987 state->split_start = 0;
d98cae64 1988 rtnl_unlock();
3713b4e3
JB		 1989 return 1;
1990 }
1991 idx--;
1992 break;
645e77de 1993 }
86e8cf98 1994 } while (state->split_start > 0);
3713b4e3 1995 break;
55682965 1996 }
5fe231e8 1997 rtnl_unlock();
55682965 1998
86e8cf98 1999 state->start = idx;
55682965
JB		 2000
2001 return skb->len;
2002}
2003
86e8cf98
JB		 2004static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2005{
2006 kfree((void *)cb->args[0]);
2007 return 0;
2008}
2009
55682965
JB		 2010static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2011{
2012 struct sk_buff *msg;
1b8ec87a 2013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 2014 struct nl80211_dump_wiphy_state state = {};
55682965 2015
645e77de 2016 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 2017 if (!msg)
4c476991 2018 return -ENOMEM;
55682965 2019
3bb20556
JB		 2020 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2021 info->snd_portid, info->snd_seq, 0,
86e8cf98 2022 &state) < 0) {
4c476991
JB		 2023 nlmsg_free(msg);
2024 return -ENOBUFS;
2025 }
55682965 2026
134e6375 2027 return genlmsg_reply(msg, info);
55682965
JB		 2028}
2029
31888487
JM		 2030static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2031 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2032 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2033 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2034 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2035 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2036};
2037
2038static int parse_txq_params(struct nlattr *tb[],
2039 struct ieee80211_txq_params *txq_params)
2040{
a3304b0a 2041 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 2042 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2043 !tb[NL80211_TXQ_ATTR_AIFS])
2044 return -EINVAL;
2045
a3304b0a 2046 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 2047 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2048 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2049 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2050 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2051
a3304b0a
JB		 2052 if (txq_params->ac >= NL80211_NUM_ACS)
2053 return -EINVAL;
2054
31888487
JM		 2055 return 0;
2056}
2057
f444de05
JB		 2058static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2059{
2060 /*
cc1d2806
JB		 2061 * You can only set the channel explicitly for WDS interfaces,
2062 * all others have their channel managed via their respective
2063 * "establish a connection" command (connect, join, ...)
2064 *
2065 * For AP/GO and mesh mode, the channel can be set with the
2066 * channel userspace API, but is only stored and passed to the
2067 * low-level driver when the AP starts or the mesh is joined.
2068 * This is for backward compatibility, userspace can also give
2069 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2070 *
2071 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2072 * whatever else is going on, so they have their own special
2073 * operation to set the monitor channel if possible.
f444de05
JB		 2074 */
2075 return !wdev ||
2076 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2077 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2078 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2079 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2080}
2081
683b6d3b
JB		 2082static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2083 struct genl_info *info,
2084 struct cfg80211_chan_def *chandef)
2085{
dbeca2ea 2086 u32 control_freq;
683b6d3b
JB		 2087
2088 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2089 return -EINVAL;
2090
2091 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2092
2093 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2094 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2095 chandef->center_freq1 = control_freq;
2096 chandef->center_freq2 = 0;
683b6d3b
JB		 2097
2098 /* Primary channel not allowed */
2099 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2100 return -EINVAL;
2101
3d9d1d66
JB		 2102 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2103 enum nl80211_channel_type chantype;
2104
2105 chantype = nla_get_u32(
2106 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2107
2108 switch (chantype) {
2109 case NL80211_CHAN_NO_HT:
2110 case NL80211_CHAN_HT20:
2111 case NL80211_CHAN_HT40PLUS:
2112 case NL80211_CHAN_HT40MINUS:
2113 cfg80211_chandef_create(chandef, chandef->chan,
2114 chantype);
2115 break;
2116 default:
2117 return -EINVAL;
2118 }
2119 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2120 chandef->width =
2121 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2122 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2123 chandef->center_freq1 =
2124 nla_get_u32(
2125 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2126 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2127 chandef->center_freq2 =
2128 nla_get_u32(
2129 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2130 }
2131
9f5e8f6e 2132 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2133 return -EINVAL;
2134
9f5e8f6e
JB		 2135 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2136 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2137 return -EINVAL;
2138
2f301ab2
SW		 2139 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2140 chandef->width == NL80211_CHAN_WIDTH_10) &&
2141 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2142 return -EINVAL;
2143
683b6d3b
JB		 2144 return 0;
2145}
2146
f444de05 2147static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2148 struct net_device *dev,
f444de05
JB		 2149 struct genl_info *info)
2150{
683b6d3b 2151 struct cfg80211_chan_def chandef;
f444de05 2152 int result;
e8c9bd5b 2153 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2154 struct wireless_dev *wdev = NULL;
e8c9bd5b 2155
e16821bc
JM		 2156 if (dev)
2157 wdev = dev->ieee80211_ptr;
f444de05
JB		 2158 if (!nl80211_can_set_dev_channel(wdev))
2159 return -EOPNOTSUPP;
e16821bc
JM		 2160 if (wdev)
2161 iftype = wdev->iftype;
f444de05 2162
683b6d3b
JB		 2163 result = nl80211_parse_chandef(rdev, info, &chandef);
2164 if (result)
2165 return result;
f444de05 2166
e8c9bd5b 2167 switch (iftype) {
aa430da4
JB		 2168 case NL80211_IFTYPE_AP:
2169 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2170 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2171 iftype)) {
aa430da4
JB		 2172 result = -EINVAL;
2173 break;
2174 }
e16821bc
JM		 2175 if (wdev->beacon_interval) {
2176 if (!dev || !rdev->ops->set_ap_chanwidth ||
2177 !(rdev->wiphy.features &
2178 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2179 result = -EBUSY;
2180 break;
2181 }
2182
2183 /* Only allow dynamic channel width changes */
2184 if (chandef.chan != wdev->preset_chandef.chan) {
2185 result = -EBUSY;
2186 break;
2187 }
2188 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2189 if (result)
2190 break;
2191 }
683b6d3b 2192 wdev->preset_chandef = chandef;
aa430da4
JB		 2193 result = 0;
2194 break;
cc1d2806 2195 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2196 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2197 break;
e8c9bd5b 2198 case NL80211_IFTYPE_MONITOR:
683b6d3b 2199 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2200 break;
aa430da4 2201 default:
e8c9bd5b 2202 result = -EINVAL;
f444de05 2203 }
f444de05
JB		 2204
2205 return result;
2206}
2207
2208static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2209{
4c476991
JB		 2210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2211 struct net_device *netdev = info->user_ptr[1];
f444de05 2212
e16821bc 2213 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2214}
2215
e8347eba
BJ		 2216static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2217{
43b19952
JB		 2218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2219 struct net_device *dev = info->user_ptr[1];
2220 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2221 const u8 *bssid;
e8347eba
BJ		 2222
2223 if (!info->attrs[NL80211_ATTR_MAC])
2224 return -EINVAL;
2225
43b19952
JB		 2226 if (netif_running(dev))
2227 return -EBUSY;
e8347eba 2228
43b19952
JB		 2229 if (!rdev->ops->set_wds_peer)
2230 return -EOPNOTSUPP;
e8347eba 2231
43b19952
JB		 2232 if (wdev->iftype != NL80211_IFTYPE_WDS)
2233 return -EOPNOTSUPP;
e8347eba
BJ		 2234
2235 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2236 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2237}
2238
55682965
JB		 2239static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2240{
2241 struct cfg80211_registered_device *rdev;
f444de05
JB		 2242 struct net_device *netdev = NULL;
2243 struct wireless_dev *wdev;
a1e567c8 2244 int result = 0, rem_txq_params = 0;
31888487 2245 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2246 u32 changed;
2247 u8 retry_short = 0, retry_long = 0;
2248 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2249 u8 coverage_class = 0;
55682965 2250
5fe231e8
JB		 2251 ASSERT_RTNL();
2252
f444de05
JB		 2253 /*
2254 * Try to find the wiphy and netdev. Normally this
2255 * function shouldn't need the netdev, but this is
2256 * done for backward compatibility -- previously
2257 * setting the channel was done per wiphy, but now
2258 * it is per netdev. Previous userland like hostapd
2259 * also passed a netdev to set_wiphy, so that it is
2260 * possible to let that go to the right netdev!
2261 */
4bbf4d56 2262
f444de05
JB		 2263 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2264 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2265
7f2b8562 2266 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2267 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2268 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2269 else
f444de05 2270 netdev = NULL;
4bbf4d56
JB		 2271 }
2272
f444de05 2273 if (!netdev) {
878d9ec7
JB		 2274 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2275 info->attrs);
5fe231e8 2276 if (IS_ERR(rdev))
4c476991 2277 return PTR_ERR(rdev);
f444de05
JB		 2278 wdev = NULL;
2279 netdev = NULL;
2280 result = 0;
71fe96bf 2281 } else
f444de05 2282 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2283
2284 /*
2285 * end workaround code, by now the rdev is available
2286 * and locked, and wdev may or may not be NULL.
2287 */
4bbf4d56
JB		 2288
2289 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2290 result = cfg80211_dev_rename(
2291 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2292
4bbf4d56 2293 if (result)
7f2b8562 2294 return result;
31888487
JM		 2295
2296 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2297 struct ieee80211_txq_params txq_params;
2298 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2299
7f2b8562
YX		 2300 if (!rdev->ops->set_txq_params)
2301 return -EOPNOTSUPP;
31888487 2302
7f2b8562
YX		 2303 if (!netdev)
2304 return -EINVAL;
f70f01c2 2305
133a3ff2 2306 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2307 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2308 return -EINVAL;
133a3ff2 2309
7f2b8562
YX		 2310 if (!netif_running(netdev))
2311 return -ENETDOWN;
2b5f8b0b 2312
31888487
JM		 2313 nla_for_each_nested(nl_txq_params,
2314 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2315 rem_txq_params) {
bfe2c7b1
JB		 2316 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2317 nl_txq_params,
2318 txq_params_policy);
ae811e21
JB		 2319 if (result)
2320 return result;
31888487
JM		 2321 result = parse_txq_params(tb, &txq_params);
2322 if (result)
7f2b8562 2323 return result;
31888487 2324
e35e4d28
HG		 2325 result = rdev_set_txq_params(rdev, netdev,
2326 &txq_params);
31888487 2327 if (result)
7f2b8562 2328 return result;
31888487
JM		 2329 }
2330 }
55682965 2331
72bdcf34 2332 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2333 result = __nl80211_set_channel(
2334 rdev,
2335 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2336 info);
72bdcf34 2337 if (result)
7f2b8562 2338 return result;
72bdcf34
JM		 2339 }
2340
98d2ff8b 2341 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2342 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2343 enum nl80211_tx_power_setting type;
2344 int idx, mbm = 0;
2345
c8442118
JB		 2346 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2347 txp_wdev = NULL;
2348
7f2b8562
YX		 2349 if (!rdev->ops->set_tx_power)
2350 return -EOPNOTSUPP;
98d2ff8b
JO		 2351
2352 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2353 type = nla_get_u32(info->attrs[idx]);
2354
2355 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2356 (type != NL80211_TX_POWER_AUTOMATIC))
2357 return -EINVAL;
98d2ff8b
JO		 2358
2359 if (type != NL80211_TX_POWER_AUTOMATIC) {
2360 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2361 mbm = nla_get_u32(info->attrs[idx]);
2362 }
2363
c8442118 2364 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2365 if (result)
7f2b8562 2366 return result;
98d2ff8b
JO		 2367 }
2368
afe0cbf8
BR		 2369 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2370 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2371 u32 tx_ant, rx_ant;
7a087e74 2372
7f531e03
BR		 2373 if ((!rdev->wiphy.available_antennas_tx &&
2374 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2375 !rdev->ops->set_antenna)
2376 return -EOPNOTSUPP;
afe0cbf8
BR		 2377
2378 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2379 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2380
a7ffac95 2381 /* reject antenna configurations which don't match the
7f531e03
BR		 2382 * available antenna masks, except for the "all" mask */
2383 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2384 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2385 return -EINVAL;
a7ffac95 2386
7f531e03
BR		 2387 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2388 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2389
e35e4d28 2390 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2391 if (result)
7f2b8562 2392 return result;
afe0cbf8
BR		 2393 }
2394
b9a5f8ca
JM		 2395 changed = 0;
2396
2397 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2398 retry_short = nla_get_u8(
2399 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2400 if (retry_short == 0)
2401 return -EINVAL;
2402
b9a5f8ca
JM		 2403 changed |= WIPHY_PARAM_RETRY_SHORT;
2404 }
2405
2406 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2407 retry_long = nla_get_u8(
2408 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2409 if (retry_long == 0)
2410 return -EINVAL;
2411
b9a5f8ca
JM		 2412 changed |= WIPHY_PARAM_RETRY_LONG;
2413 }
2414
2415 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2416 frag_threshold = nla_get_u32(
2417 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2418 if (frag_threshold < 256)
2419 return -EINVAL;
2420
b9a5f8ca
JM		 2421 if (frag_threshold != (u32) -1) {
2422 /*
2423 * Fragments (apart from the last one) are required to
2424 * have even length. Make the fragmentation code
2425 * simpler by stripping LSB should someone try to use
2426 * odd threshold value.
2427 */
2428 frag_threshold &= ~0x1;
2429 }
2430 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2431 }
2432
2433 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2434 rts_threshold = nla_get_u32(
2435 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2436 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2437 }
2438
81077e82 2439 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2440 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2441 return -EINVAL;
2442
81077e82
LT		 2443 coverage_class = nla_get_u8(
2444 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2445 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2446 }
2447
3057dbfd
LB		 2448 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2449 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2450 return -EOPNOTSUPP;
2451
2452 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2453 }
2454
b9a5f8ca
JM		 2455 if (changed) {
2456 u8 old_retry_short, old_retry_long;
2457 u32 old_frag_threshold, old_rts_threshold;
81077e82 2458 u8 old_coverage_class;
b9a5f8ca 2459
7f2b8562
YX		 2460 if (!rdev->ops->set_wiphy_params)
2461 return -EOPNOTSUPP;
b9a5f8ca
JM		 2462
2463 old_retry_short = rdev->wiphy.retry_short;
2464 old_retry_long = rdev->wiphy.retry_long;
2465 old_frag_threshold = rdev->wiphy.frag_threshold;
2466 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2467 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2468
2469 if (changed & WIPHY_PARAM_RETRY_SHORT)
2470 rdev->wiphy.retry_short = retry_short;
2471 if (changed & WIPHY_PARAM_RETRY_LONG)
2472 rdev->wiphy.retry_long = retry_long;
2473 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2474 rdev->wiphy.frag_threshold = frag_threshold;
2475 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2476 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2477 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2478 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2479
e35e4d28 2480 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2481 if (result) {
2482 rdev->wiphy.retry_short = old_retry_short;
2483 rdev->wiphy.retry_long = old_retry_long;
2484 rdev->wiphy.frag_threshold = old_frag_threshold;
2485 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2486 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2487 return result;
b9a5f8ca
JM		 2488 }
2489 }
7f2b8562 2490 return 0;
55682965
JB		 2491}
2492
71bbc994
JB		 2493static inline u64 wdev_id(struct wireless_dev *wdev)
2494{
2495 return (u64)wdev->identifier |
f26cbf40 2496 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2497}
55682965 2498
683b6d3b 2499static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2500 const struct cfg80211_chan_def *chandef)
683b6d3b 2501{
601555cd
JB		 2502 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2503 return -EINVAL;
3d9d1d66 2504
683b6d3b
JB		 2505 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2506 chandef->chan->center_freq))
2507 return -ENOBUFS;
3d9d1d66
JB		 2508 switch (chandef->width) {
2509 case NL80211_CHAN_WIDTH_20_NOHT:
2510 case NL80211_CHAN_WIDTH_20:
2511 case NL80211_CHAN_WIDTH_40:
2512 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2513 cfg80211_get_chandef_type(chandef)))
2514 return -ENOBUFS;
2515 break;
2516 default:
2517 break;
2518 }
2519 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2520 return -ENOBUFS;
2521 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2522 return -ENOBUFS;
2523 if (chandef->center_freq2 &&
2524 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2525 return -ENOBUFS;
2526 return 0;
2527}
2528
15e47304 2529static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2530 struct cfg80211_registered_device *rdev,
8f894be2 2531 struct wireless_dev *wdev, bool removal)
55682965 2532{
72fb2abc 2533 struct net_device *dev = wdev->netdev;
8f894be2 2534 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2535 void *hdr;
2536
8f894be2
TB		 2537 if (removal)
2538 cmd = NL80211_CMD_DEL_INTERFACE;
2539
2540 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2541 if (!hdr)
2542 return -1;
2543
72fb2abc
JB		 2544 if (dev &&
2545 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2546 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2547 goto nla_put_failure;
2548
2549 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2550 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2551 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2552 NL80211_ATTR_PAD) ||
98104fde 2553 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2554 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2555 rdev->devlist_generation ^
2556 (cfg80211_rdev_list_generation << 2)))
2557 goto nla_put_failure;
f5ea9120 2558
5b7ccaf3 2559 if (rdev->ops->get_channel) {
683b6d3b
JB		 2560 int ret;
2561 struct cfg80211_chan_def chandef;
2562
2563 ret = rdev_get_channel(rdev, wdev, &chandef);
2564 if (ret == 0) {
2565 if (nl80211_send_chandef(msg, &chandef))
2566 goto nla_put_failure;
2567 }
d91df0e3
PF		 2568 }
2569
d55d0d59
RM		 2570 if (rdev->ops->get_tx_power) {
2571 int dbm, ret;
2572
2573 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2574 if (ret == 0 &&
2575 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2576 DBM_TO_MBM(dbm)))
2577 goto nla_put_failure;
2578 }
2579
b84e7a05
AQ		 2580 if (wdev->ssid_len) {
2581 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2582 goto nla_put_failure;
2583 }
2584
053c095a
JB		 2585 genlmsg_end(msg, hdr);
2586 return 0;
55682965
JB		 2587
2588 nla_put_failure:
bc3ed28c
TG		 2589 genlmsg_cancel(msg, hdr);
2590 return -EMSGSIZE;
55682965
JB		 2591}
2592
2593static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2594{
2595 int wp_idx = 0;
2596 int if_idx = 0;
2597 int wp_start = cb->args[0];
2598 int if_start = cb->args[1];
b7fb44da 2599 int filter_wiphy = -1;
f5ea9120 2600 struct cfg80211_registered_device *rdev;
55682965
JB		 2601 struct wireless_dev *wdev;
2602
5fe231e8 2603 rtnl_lock();
b7fb44da
DK		 2604 if (!cb->args[2]) {
2605 struct nl80211_dump_wiphy_state state = {
2606 .filter_wiphy = -1,
2607 };
2608 int ret;
2609
2610 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2611 if (ret)
2612 return ret;
2613
2614 filter_wiphy = state.filter_wiphy;
2615
2616 /*
2617 * if filtering, set cb->args[2] to +1 since 0 is the default
2618 * value needed to determine that parsing is necessary.
2619 */
2620 if (filter_wiphy >= 0)
2621 cb->args[2] = filter_wiphy + 1;
2622 else
2623 cb->args[2] = -1;
2624 } else if (cb->args[2] > 0) {
2625 filter_wiphy = cb->args[2] - 1;
2626 }
2627
f5ea9120
JB		 2628 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2629 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2630 continue;
bba95fef
JB		 2631 if (wp_idx < wp_start) {
2632 wp_idx++;
55682965 2633 continue;
bba95fef 2634 }
b7fb44da
DK		 2635
2636 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2637 continue;
2638
55682965
JB		 2639 if_idx = 0;
2640
53873f13 2641 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2642 if (if_idx < if_start) {
2643 if_idx++;
55682965 2644 continue;
bba95fef 2645 }
15e47304 2646 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2647 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2648 rdev, wdev, false) < 0) {
bba95fef
JB		 2649 goto out;
2650 }
2651 if_idx++;
55682965 2652 }
bba95fef
JB		 2653
2654 wp_idx++;
55682965 2655 }
bba95fef 2656 out:
5fe231e8 2657 rtnl_unlock();
55682965
JB		 2658
2659 cb->args[0] = wp_idx;
2660 cb->args[1] = if_idx;
2661
2662 return skb->len;
2663}
2664
2665static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2666{
2667 struct sk_buff *msg;
1b8ec87a 2668 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2669 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2670
fd2120ca 2671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2672 if (!msg)
4c476991 2673 return -ENOMEM;
55682965 2674
15e47304 2675 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2676 rdev, wdev, false) < 0) {
4c476991
JB		 2677 nlmsg_free(msg);
2678 return -ENOBUFS;
2679 }
55682965 2680
134e6375 2681 return genlmsg_reply(msg, info);
55682965
JB		 2682}
2683
66f7ac50
MW		 2684static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2685 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2686 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2687 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2688 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2689 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2690 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2691};
2692
2693static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2694{
2695 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2696 int flag;
2697
2698 *mntrflags = 0;
2699
2700 if (!nla)
2701 return -EINVAL;
2702
2703 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2704 nla, mntr_flags_policy))
2705 return -EINVAL;
2706
2707 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2708 if (flags[flag])
2709 *mntrflags |= (1<<flag);
2710
2711 return 0;
2712}
2713
9bc383de 2714static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2715 struct net_device *netdev, u8 use_4addr,
2716 enum nl80211_iftype iftype)
9bc383de 2717{
ad4bb6f8 2718 if (!use_4addr) {
f350a0a8 2719 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2720 return -EBUSY;
9bc383de 2721 return 0;
ad4bb6f8 2722 }
9bc383de
JB		 2723
2724 switch (iftype) {
2725 case NL80211_IFTYPE_AP_VLAN:
2726 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2727 return 0;
2728 break;
2729 case NL80211_IFTYPE_STATION:
2730 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2731 return 0;
2732 break;
2733 default:
2734 break;
2735 }
2736
2737 return -EOPNOTSUPP;
2738}
2739
55682965
JB		 2740static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2741{
4c476991 2742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2743 struct vif_params params;
e36d56b6 2744 int err;
04a773ad 2745 enum nl80211_iftype otype, ntype;
4c476991 2746 struct net_device *dev = info->user_ptr[1];
92ffe055 2747 u32 _flags, *flags = NULL;
ac7f9cfa 2748 bool change = false;
55682965 2749
2ec600d6
LCC		 2750 memset(&params, 0, sizeof(params));
2751
04a773ad 2752 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2753
723b038d 2754 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2755 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2756 if (otype != ntype)
ac7f9cfa 2757 change = true;
4c476991
JB		 2758 if (ntype > NL80211_IFTYPE_MAX)
2759 return -EINVAL;
723b038d
JB		 2760 }
2761
92ffe055 2762 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2763 struct wireless_dev *wdev = dev->ieee80211_ptr;
2764
4c476991
JB		 2765 if (ntype != NL80211_IFTYPE_MESH_POINT)
2766 return -EINVAL;
29cbe68c
JB		 2767 if (netif_running(dev))
2768 return -EBUSY;
2769
2770 wdev_lock(wdev);
2771 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2772 IEEE80211_MAX_MESH_ID_LEN);
2773 wdev->mesh_id_up_len =
2774 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2775 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2776 wdev->mesh_id_up_len);
2777 wdev_unlock(wdev);
2ec600d6
LCC		 2778 }
2779
8b787643
FF		 2780 if (info->attrs[NL80211_ATTR_4ADDR]) {
2781 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2782 change = true;
ad4bb6f8 2783 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2784 if (err)
4c476991 2785 return err;
8b787643
FF		 2786 } else {
2787 params.use_4addr = -1;
2788 }
2789
92ffe055 2790 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2791 if (ntype != NL80211_IFTYPE_MONITOR)
2792 return -EINVAL;
92ffe055
JB		 2793 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2794 &_flags);
ac7f9cfa 2795 if (err)
4c476991 2796 return err;
ac7f9cfa
JB		 2797
2798 flags = &_flags;
2799 change = true;
92ffe055 2800 }
3b85875a 2801
c6e6a0c8
AE		 2802 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2803 const u8 *mumimo_groups;
2804 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2805
2806 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2807 return -EOPNOTSUPP;
2808
2809 mumimo_groups =
2810 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2811
2812 /* bits 0 and 63 are reserved and must be zero */
2813 if ((mumimo_groups[0] & BIT(7)) ||
2814 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2815 return -EINVAL;
2816
2817 memcpy(params.vht_mumimo_groups, mumimo_groups,
2818 VHT_MUMIMO_GROUPS_DATA_LEN);
2819 change = true;
2820 }
2821
2822 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2823 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2824
2825 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2826 return -EOPNOTSUPP;
2827
2828 nla_memcpy(params.macaddr,
2829 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2830 ETH_ALEN);
2831 change = true;
2832 }
2833
18003297 2834 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2835 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2836 return -EOPNOTSUPP;
2837
ac7f9cfa 2838 if (change)
3d54d255 2839 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2840 else
2841 err = 0;
60719ffd 2842
9bc383de
JB		 2843 if (!err && params.use_4addr != -1)
2844 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2845
55682965
JB		 2846 return err;
2847}
2848
2849static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2850{
4c476991 2851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2852 struct vif_params params;
84efbb84 2853 struct wireless_dev *wdev;
896ff063 2854 struct sk_buff *msg;
55682965
JB		 2855 int err;
2856 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2857 u32 flags;
55682965 2858
78f22b6a
JB		 2859 /* to avoid failing a new interface creation due to pending removal */
2860 cfg80211_destroy_ifaces(rdev);
2861
2ec600d6
LCC		 2862 memset(&params, 0, sizeof(params));
2863
55682965
JB		 2864 if (!info->attrs[NL80211_ATTR_IFNAME])
2865 return -EINVAL;
2866
2867 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2868 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2869 if (type > NL80211_IFTYPE_MAX)
2870 return -EINVAL;
2871 }
2872
79c97e97 2873 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2874 !(rdev->wiphy.interface_modes & (1 << type)))
2875 return -EOPNOTSUPP;
55682965 2876
cb3b7d87 2877 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2878 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2879 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2880 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2881 ETH_ALEN);
2882 if (!is_valid_ether_addr(params.macaddr))
2883 return -EADDRNOTAVAIL;
2884 }
2885
9bc383de 2886 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2887 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2888 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2889 if (err)
4c476991 2890 return err;
9bc383de 2891 }
8b787643 2892
66f7ac50
MW		 2893 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2894 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2895 &flags);
e057d3c3 2896
18003297 2897 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2898 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2899 return -EOPNOTSUPP;
2900
a18c7192
JB		 2901 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2902 if (!msg)
2903 return -ENOMEM;
2904
e35e4d28
HG		 2905 wdev = rdev_add_virtual_intf(rdev,
2906 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2907 NET_NAME_USER, type, err ? NULL : &flags,
2908 &params);
d687cbb7
RM		 2909 if (WARN_ON(!wdev)) {
2910 nlmsg_free(msg);
2911 return -EPROTO;
2912 } else if (IS_ERR(wdev)) {
1c90f9d4 2913 nlmsg_free(msg);
84efbb84 2914 return PTR_ERR(wdev);
1c90f9d4 2915 }
2ec600d6 2916
18e5ca65 2917 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2918 wdev->owner_nlportid = info->snd_portid;
2919
98104fde
JB		 2920 switch (type) {
2921 case NL80211_IFTYPE_MESH_POINT:
2922 if (!info->attrs[NL80211_ATTR_MESH_ID])
2923 break;
29cbe68c
JB		 2924 wdev_lock(wdev);
2925 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2926 IEEE80211_MAX_MESH_ID_LEN);
2927 wdev->mesh_id_up_len =
2928 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2929 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2930 wdev->mesh_id_up_len);
2931 wdev_unlock(wdev);
98104fde 2932 break;
cb3b7d87 2933 case NL80211_IFTYPE_NAN:
98104fde
JB		 2934 case NL80211_IFTYPE_P2P_DEVICE:
2935 /*
cb3b7d87 2936 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 2937 * through the netdev notifier and must be added here
2938 */
2939 mutex_init(&wdev->mtx);
2940 INIT_LIST_HEAD(&wdev->event_list);
2941 spin_lock_init(&wdev->event_lock);
2942 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2943 spin_lock_init(&wdev->mgmt_registrations_lock);
2944
98104fde 2945 wdev->identifier = ++rdev->wdev_id;
53873f13 2946 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2947 rdev->devlist_generation++;
98104fde
JB		 2948 break;
2949 default:
2950 break;
29cbe68c
JB		 2951 }
2952
15e47304 2953 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2954 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2955 nlmsg_free(msg);
2956 return -ENOBUFS;
2957 }
2958
896ff063
DK		 2959 /*
2960 * For wdevs which have no associated netdev object (e.g. of type
2961 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2962 * For all other types, the event will be generated from the
2963 * netdev notifier
2964 */
2965 if (!wdev->netdev)
2966 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2967
1c90f9d4 2968 return genlmsg_reply(msg, info);
55682965
JB		 2969}
2970
2971static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2972{
4c476991 2973 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2974 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2975
4c476991
JB		 2976 if (!rdev->ops->del_virtual_intf)
2977 return -EOPNOTSUPP;
55682965 2978
84efbb84
JB		 2979 /*
2980 * If we remove a wireless device without a netdev then clear
2981 * user_ptr[1] so that nl80211_post_doit won't dereference it
2982 * to check if it needs to do dev_put(). Otherwise it crashes
2983 * since the wdev has been freed, unlike with a netdev where
2984 * we need the dev_put() for the netdev to really be freed.
2985 */
2986 if (!wdev->netdev)
2987 info->user_ptr[1] = NULL;
2988
7f8ed01e 2989 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2990}
2991
1d9d9213
SW		 2992static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2993{
2994 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2995 struct net_device *dev = info->user_ptr[1];
2996 u16 noack_map;
2997
2998 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2999 return -EINVAL;
3000
3001 if (!rdev->ops->set_noack_map)
3002 return -EOPNOTSUPP;
3003
3004 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3005
e35e4d28 3006 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 3007}
3008
41ade00f
JB		 3009struct get_key_cookie {
3010 struct sk_buff *msg;
3011 int error;
b9454e83 3012 int idx;
41ade00f
JB		 3013};
3014
3015static void get_key_callback(void *c, struct key_params *params)
3016{
b9454e83 3017 struct nlattr *key;
41ade00f
JB		 3018 struct get_key_cookie *cookie = c;
3019
9360ffd1
DM		 3020 if ((params->key &&
3021 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3022 params->key_len, params->key)) ||
3023 (params->seq &&
3024 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3025 params->seq_len, params->seq)) ||
3026 (params->cipher &&
3027 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3028 params->cipher)))
3029 goto nla_put_failure;
41ade00f 3030
b9454e83
JB		 3031 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3032 if (!key)
3033 goto nla_put_failure;
3034
9360ffd1
DM		 3035 if ((params->key &&
3036 nla_put(cookie->msg, NL80211_KEY_DATA,
3037 params->key_len, params->key)) ||
3038 (params->seq &&
3039 nla_put(cookie->msg, NL80211_KEY_SEQ,
3040 params->seq_len, params->seq)) ||
3041 (params->cipher &&
3042 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3043 params->cipher)))
3044 goto nla_put_failure;
b9454e83 3045
9360ffd1
DM		 3046 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3047 goto nla_put_failure;
b9454e83
JB		 3048
3049 nla_nest_end(cookie->msg, key);
3050
41ade00f
JB		 3051 return;
3052 nla_put_failure:
3053 cookie->error = 1;
3054}
3055
3056static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3057{
4c476991 3058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3059 int err;
4c476991 3060 struct net_device *dev = info->user_ptr[1];
41ade00f 3061 u8 key_idx = 0;
e31b8213
JB		 3062 const u8 *mac_addr = NULL;
3063 bool pairwise;
41ade00f
JB		 3064 struct get_key_cookie cookie = {
3065 .error = 0,
3066 };
3067 void *hdr;
3068 struct sk_buff *msg;
3069
3070 if (info->attrs[NL80211_ATTR_KEY_IDX])
3071 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3072
3cfcf6ac 3073 if (key_idx > 5)
41ade00f
JB		 3074 return -EINVAL;
3075
3076 if (info->attrs[NL80211_ATTR_MAC])
3077 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3078
e31b8213
JB		 3079 pairwise = !!mac_addr;
3080 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3081 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3082
e31b8213
JB		 3083 if (kt >= NUM_NL80211_KEYTYPES)
3084 return -EINVAL;
3085 if (kt != NL80211_KEYTYPE_GROUP &&
3086 kt != NL80211_KEYTYPE_PAIRWISE)
3087 return -EINVAL;
3088 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3089 }
3090
4c476991
JB		 3091 if (!rdev->ops->get_key)
3092 return -EOPNOTSUPP;
41ade00f 3093
0fa7b391
JB		 3094 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3095 return -ENOENT;
3096
fd2120ca 3097 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3098 if (!msg)
3099 return -ENOMEM;
41ade00f 3100
15e47304 3101 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3102 NL80211_CMD_NEW_KEY);
cb35fba3 3103 if (!hdr)
9fe271af 3104 goto nla_put_failure;
41ade00f
JB		 3105
3106 cookie.msg = msg;
b9454e83 3107 cookie.idx = key_idx;
41ade00f 3108
9360ffd1
DM		 3109 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3110 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3111 goto nla_put_failure;
3112 if (mac_addr &&
3113 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3114 goto nla_put_failure;
41ade00f 3115
e35e4d28
HG		 3116 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3117 get_key_callback);
41ade00f
JB		 3118
3119 if (err)
6c95e2a2 3120 goto free_msg;
41ade00f
JB		 3121
3122 if (cookie.error)
3123 goto nla_put_failure;
3124
3125 genlmsg_end(msg, hdr);
4c476991 3126 return genlmsg_reply(msg, info);
41ade00f
JB		 3127
3128 nla_put_failure:
3129 err = -ENOBUFS;
6c95e2a2 3130 free_msg:
41ade00f 3131 nlmsg_free(msg);
41ade00f
JB		 3132 return err;
3133}
3134
3135static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3136{
4c476991 3137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3138 struct key_parse key;
41ade00f 3139 int err;
4c476991 3140 struct net_device *dev = info->user_ptr[1];
41ade00f 3141
b9454e83
JB		 3142 err = nl80211_parse_key(info, &key);
3143 if (err)
3144 return err;
41ade00f 3145
b9454e83 3146 if (key.idx < 0)
41ade00f
JB		 3147 return -EINVAL;
3148
b9454e83
JB		 3149 /* only support setting default key */
3150 if (!key.def && !key.defmgmt)
41ade00f
JB		 3151 return -EINVAL;
3152
dbd2fd65 3153 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3154
dbd2fd65
JB		 3155 if (key.def) {
3156 if (!rdev->ops->set_default_key) {
3157 err = -EOPNOTSUPP;
3158 goto out;
3159 }
41ade00f 3160
dbd2fd65
JB		 3161 err = nl80211_key_allowed(dev->ieee80211_ptr);
3162 if (err)
3163 goto out;
3164
e35e4d28 3165 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3166 key.def_uni, key.def_multi);
3167
3168 if (err)
3169 goto out;
fffd0934 3170
3d23e349 3171#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3172 dev->ieee80211_ptr->wext.default_key = key.idx;
3173#endif
3174 } else {
3175 if (key.def_uni || !key.def_multi) {
3176 err = -EINVAL;
3177 goto out;
3178 }
3179
3180 if (!rdev->ops->set_default_mgmt_key) {
3181 err = -EOPNOTSUPP;
3182 goto out;
3183 }
3184
3185 err = nl80211_key_allowed(dev->ieee80211_ptr);
3186 if (err)
3187 goto out;
3188
e35e4d28 3189 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3190 if (err)
3191 goto out;
3192
3193#ifdef CONFIG_CFG80211_WEXT
3194 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3195#endif
dbd2fd65
JB		 3196 }
3197
3198 out:
fffd0934 3199 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3200
41ade00f
JB		 3201 return err;
3202}
3203
3204static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3205{
4c476991 3206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3207 int err;
4c476991 3208 struct net_device *dev = info->user_ptr[1];
b9454e83 3209 struct key_parse key;
e31b8213 3210 const u8 *mac_addr = NULL;
41ade00f 3211
b9454e83
JB		 3212 err = nl80211_parse_key(info, &key);
3213 if (err)
3214 return err;
41ade00f 3215
b9454e83 3216 if (!key.p.key)
41ade00f
JB		 3217 return -EINVAL;
3218
41ade00f
JB		 3219 if (info->attrs[NL80211_ATTR_MAC])
3220 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3221
e31b8213
JB		 3222 if (key.type == -1) {
3223 if (mac_addr)
3224 key.type = NL80211_KEYTYPE_PAIRWISE;
3225 else
3226 key.type = NL80211_KEYTYPE_GROUP;
3227 }
3228
3229 /* for now */
3230 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3231 key.type != NL80211_KEYTYPE_GROUP)
3232 return -EINVAL;
3233
4c476991
JB		 3234 if (!rdev->ops->add_key)
3235 return -EOPNOTSUPP;
25e47c18 3236
e31b8213
JB		 3237 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3238 key.type == NL80211_KEYTYPE_PAIRWISE,
3239 mac_addr))
4c476991 3240 return -EINVAL;
41ade00f 3241
fffd0934
JB		 3242 wdev_lock(dev->ieee80211_ptr);
3243 err = nl80211_key_allowed(dev->ieee80211_ptr);
3244 if (!err)
e35e4d28
HG		 3245 err = rdev_add_key(rdev, dev, key.idx,
3246 key.type == NL80211_KEYTYPE_PAIRWISE,
3247 mac_addr, &key.p);
fffd0934 3248 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3249
41ade00f
JB		 3250 return err;
3251}
3252
3253static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3254{
4c476991 3255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3256 int err;
4c476991 3257 struct net_device *dev = info->user_ptr[1];
41ade00f 3258 u8 *mac_addr = NULL;
b9454e83 3259 struct key_parse key;
41ade00f 3260
b9454e83
JB		 3261 err = nl80211_parse_key(info, &key);
3262 if (err)
3263 return err;
41ade00f
JB		 3264
3265 if (info->attrs[NL80211_ATTR_MAC])
3266 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3267
e31b8213
JB		 3268 if (key.type == -1) {
3269 if (mac_addr)
3270 key.type = NL80211_KEYTYPE_PAIRWISE;
3271 else
3272 key.type = NL80211_KEYTYPE_GROUP;
3273 }
3274
3275 /* for now */
3276 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3277 key.type != NL80211_KEYTYPE_GROUP)
3278 return -EINVAL;
3279
4c476991
JB		 3280 if (!rdev->ops->del_key)
3281 return -EOPNOTSUPP;
41ade00f 3282
fffd0934
JB		 3283 wdev_lock(dev->ieee80211_ptr);
3284 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3285
0fa7b391 3286 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3287 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3288 err = -ENOENT;
3289
fffd0934 3290 if (!err)
e35e4d28
HG		 3291 err = rdev_del_key(rdev, dev, key.idx,
3292 key.type == NL80211_KEYTYPE_PAIRWISE,
3293 mac_addr);
41ade00f 3294
3d23e349 3295#ifdef CONFIG_CFG80211_WEXT
08645126 3296 if (!err) {
b9454e83 3297 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3298 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3299 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3300 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3301 }
3302#endif
fffd0934 3303 wdev_unlock(dev->ieee80211_ptr);
08645126 3304
41ade00f
JB		 3305 return err;
3306}
3307
77765eaf
VT		 3308/* This function returns an error or the number of nested attributes */
3309static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3310{
3311 struct nlattr *attr;
3312 int n_entries = 0, tmp;
3313
3314 nla_for_each_nested(attr, nl_attr, tmp) {
3315 if (nla_len(attr) != ETH_ALEN)
3316 return -EINVAL;
3317
3318 n_entries++;
3319 }
3320
3321 return n_entries;
3322}
3323
3324/*
3325 * This function parses ACL information and allocates memory for ACL data.
3326 * On successful return, the calling function is responsible to free the
3327 * ACL buffer returned by this function.
3328 */
3329static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3330 struct genl_info *info)
3331{
3332 enum nl80211_acl_policy acl_policy;
3333 struct nlattr *attr;
3334 struct cfg80211_acl_data *acl;
3335 int i = 0, n_entries, tmp;
3336
3337 if (!wiphy->max_acl_mac_addrs)
3338 return ERR_PTR(-EOPNOTSUPP);
3339
3340 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3341 return ERR_PTR(-EINVAL);
3342
3343 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3344 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3345 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3346 return ERR_PTR(-EINVAL);
3347
3348 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3349 return ERR_PTR(-EINVAL);
3350
3351 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3352 if (n_entries < 0)
3353 return ERR_PTR(n_entries);
3354
3355 if (n_entries > wiphy->max_acl_mac_addrs)
3356 return ERR_PTR(-ENOTSUPP);
3357
3358 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3359 GFP_KERNEL);
3360 if (!acl)
3361 return ERR_PTR(-ENOMEM);
3362
3363 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3364 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3365 i++;
3366 }
3367
3368 acl->n_acl_entries = n_entries;
3369 acl->acl_policy = acl_policy;
3370
3371 return acl;
3372}
3373
3374static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3375{
3376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3377 struct net_device *dev = info->user_ptr[1];
3378 struct cfg80211_acl_data *acl;
3379 int err;
3380
3381 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3382 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3383 return -EOPNOTSUPP;
3384
3385 if (!dev->ieee80211_ptr->beacon_interval)
3386 return -EINVAL;
3387
3388 acl = parse_acl_data(&rdev->wiphy, info);
3389 if (IS_ERR(acl))
3390 return PTR_ERR(acl);
3391
3392 err = rdev_set_mac_acl(rdev, dev, acl);
3393
3394 kfree(acl);
3395
3396 return err;
3397}
3398
a7c7fbff
PK		 3399static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3400 u8 *rates, u8 rates_len)
3401{
3402 u8 i;
3403 u32 mask = 0;
3404
3405 for (i = 0; i < rates_len; i++) {
3406 int rate = (rates[i] & 0x7f) * 5;
3407 int ridx;
3408
3409 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3410 struct ieee80211_rate *srate =
3411 &sband->bitrates[ridx];
3412 if (rate == srate->bitrate) {
3413 mask |= 1 << ridx;
3414 break;
3415 }
3416 }
3417 if (ridx == sband->n_bitrates)
3418 return 0; /* rate not found */
3419 }
3420
3421 return mask;
3422}
3423
3424static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3425 u8 *rates, u8 rates_len,
3426 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3427{
3428 u8 i;
3429
3430 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3431
3432 for (i = 0; i < rates_len; i++) {
3433 int ridx, rbit;
3434
3435 ridx = rates[i] / 8;
3436 rbit = BIT(rates[i] % 8);
3437
3438 /* check validity */
3439 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3440 return false;
3441
3442 /* check availability */
3443 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3444 mcs[ridx] |= rbit;
3445 else
3446 return false;
3447 }
3448
3449 return true;
3450}
3451
3452static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3453{
3454 u16 mcs_mask = 0;
3455
3456 switch (vht_mcs_map) {
3457 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3458 break;
3459 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3460 mcs_mask = 0x00FF;
3461 break;
3462 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3463 mcs_mask = 0x01FF;
3464 break;
3465 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3466 mcs_mask = 0x03FF;
3467 break;
3468 default:
3469 break;
3470 }
3471
3472 return mcs_mask;
3473}
3474
3475static void vht_build_mcs_mask(u16 vht_mcs_map,
3476 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3477{
3478 u8 nss;
3479
3480 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3481 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3482 vht_mcs_map >>= 2;
3483 }
3484}
3485
3486static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3487 struct nl80211_txrate_vht *txrate,
3488 u16 mcs[NL80211_VHT_NSS_MAX])
3489{
3490 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3491 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3492 u8 i;
3493
3494 if (!sband->vht_cap.vht_supported)
3495 return false;
3496
3497 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3498
3499 /* Build vht_mcs_mask from VHT capabilities */
3500 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3501
3502 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3503 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3504 mcs[i] = txrate->mcs[i];
3505 else
3506 return false;
3507 }
3508
3509 return true;
3510}
3511
3512static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3513 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3514 .len = NL80211_MAX_SUPP_RATES },
3515 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3516 .len = NL80211_MAX_SUPP_HT_RATES },
3517 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3518 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3519};
3520
3521static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3522 struct cfg80211_bitrate_mask *mask)
3523{
3524 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3526 int rem, i;
3527 struct nlattr *tx_rates;
3528 struct ieee80211_supported_band *sband;
3529 u16 vht_tx_mcs_map;
3530
3531 memset(mask, 0, sizeof(*mask));
3532 /* Default to all rates enabled */
3533 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3534 sband = rdev->wiphy.bands[i];
3535
3536 if (!sband)
3537 continue;
3538
3539 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3540 memcpy(mask->control[i].ht_mcs,
3541 sband->ht_cap.mcs.rx_mask,
3542 sizeof(mask->control[i].ht_mcs));
3543
3544 if (!sband->vht_cap.vht_supported)
3545 continue;
3546
3547 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3548 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3549 }
3550
3551 /* if no rates are given set it back to the defaults */
3552 if (!info->attrs[NL80211_ATTR_TX_RATES])
3553 goto out;
3554
3555 /* The nested attribute uses enum nl80211_band as the index. This maps
3556 * directly to the enum nl80211_band values used in cfg80211.
3557 */
3558 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3559 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3560 enum nl80211_band band = nla_type(tx_rates);
3561 int err;
3562
3563 if (band < 0 || band >= NUM_NL80211_BANDS)
3564 return -EINVAL;
3565 sband = rdev->wiphy.bands[band];
3566 if (sband == NULL)
3567 return -EINVAL;
bfe2c7b1
JB		 3568 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3569 nl80211_txattr_policy);
a7c7fbff
PK		 3570 if (err)
3571 return err;
3572 if (tb[NL80211_TXRATE_LEGACY]) {
3573 mask->control[band].legacy = rateset_to_mask(
3574 sband,
3575 nla_data(tb[NL80211_TXRATE_LEGACY]),
3576 nla_len(tb[NL80211_TXRATE_LEGACY]));
3577 if ((mask->control[band].legacy == 0) &&
3578 nla_len(tb[NL80211_TXRATE_LEGACY]))
3579 return -EINVAL;
3580 }
3581 if (tb[NL80211_TXRATE_HT]) {
3582 if (!ht_rateset_to_mask(
3583 sband,
3584 nla_data(tb[NL80211_TXRATE_HT]),
3585 nla_len(tb[NL80211_TXRATE_HT]),
3586 mask->control[band].ht_mcs))
3587 return -EINVAL;
3588 }
3589 if (tb[NL80211_TXRATE_VHT]) {
3590 if (!vht_set_mcs_mask(
3591 sband,
3592 nla_data(tb[NL80211_TXRATE_VHT]),
3593 mask->control[band].vht_mcs))
3594 return -EINVAL;
3595 }
3596 if (tb[NL80211_TXRATE_GI]) {
3597 mask->control[band].gi =
3598 nla_get_u8(tb[NL80211_TXRATE_GI]);
3599 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3600 return -EINVAL;
3601 }
3602
3603 if (mask->control[band].legacy == 0) {
3604 /* don't allow empty legacy rates if HT or VHT
3605 * are not even supported.
3606 */
3607 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3608 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3609 return -EINVAL;
3610
3611 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3612 if (mask->control[band].ht_mcs[i])
3613 goto out;
3614
3615 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3616 if (mask->control[band].vht_mcs[i])
3617 goto out;
3618
3619 /* legacy and mcs rates may not be both empty */
3620 return -EINVAL;
3621 }
3622 }
3623
3624out:
3625 return 0;
3626}
3627
8564e382
JB		 3628static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3629 enum nl80211_band band,
3630 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3631{
8564e382
JB		 3632 u32 count_ht, count_vht, i;
3633 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3634
3635 /* Allow only one rate */
3636 if (hweight32(rate) > 1)
3637 return -EINVAL;
3638
3639 count_ht = 0;
3640 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3641 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3642 return -EINVAL;
8564e382 3643 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3644 count_ht++;
3645 if (count_ht > 1)
3646 return -EINVAL;
3647 }
3648 if (count_ht && rate)
3649 return -EINVAL;
3650 }
3651
3652 count_vht = 0;
3653 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3654 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3655 return -EINVAL;
8564e382 3656 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3657 count_vht++;
3658 if (count_vht > 1)
3659 return -EINVAL;
3660 }
3661 if (count_vht && rate)
3662 return -EINVAL;
3663 }
3664
3665 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3666 return -EINVAL;
3667
8564e382
JB		 3668 if (rate &&
3669 !wiphy_ext_feature_isset(&rdev->wiphy,
3670 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3671 return -EINVAL;
3672 if (count_ht &&
3673 !wiphy_ext_feature_isset(&rdev->wiphy,
3674 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3675 return -EINVAL;
3676 if (count_vht &&
3677 !wiphy_ext_feature_isset(&rdev->wiphy,
3678 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3679 return -EINVAL;
3680
a7c7fbff
PK		 3681 return 0;
3682}
3683
a1193be8 3684static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3685 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3686{
8860020e 3687 bool haveinfo = false;
ed1b6cc7 3688
a1193be8
SW		 3689 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3690 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3691 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3692 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3693 return -EINVAL;
3694
8860020e 3695 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3696
a1193be8
SW		 3697 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3698 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3699 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3700 if (!bcn->head_len)
3701 return -EINVAL;
3702 haveinfo = true;
ed1b6cc7
JB		 3703 }
3704
a1193be8
SW		 3705 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3706 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3707 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3708 haveinfo = true;
ed1b6cc7
JB		 3709 }
3710
4c476991
JB		 3711 if (!haveinfo)
3712 return -EINVAL;
3b85875a 3713
a1193be8
SW		 3714 if (attrs[NL80211_ATTR_IE]) {
3715 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3716 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3717 }
3718
a1193be8 3719 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3720 bcn->proberesp_ies =
a1193be8 3721 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3722 bcn->proberesp_ies_len =
a1193be8 3723 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3724 }
3725
a1193be8 3726 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3727 bcn->assocresp_ies =
a1193be8 3728 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3729 bcn->assocresp_ies_len =
a1193be8 3730 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3731 }
3732
a1193be8
SW		 3733 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3734 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3735 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3736 }
3737
8860020e
JB		 3738 return 0;
3739}
3740
46c1dd0c
FF		 3741static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3742 struct cfg80211_ap_settings *params)
3743{
3744 struct wireless_dev *wdev;
3745 bool ret = false;
3746
53873f13 3747 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3748 if (wdev->iftype != NL80211_IFTYPE_AP &&
3749 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3750 continue;
3751
683b6d3b 3752 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3753 continue;
3754
683b6d3b 3755 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3756 ret = true;
3757 break;
3758 }
3759
46c1dd0c
FF		 3760 return ret;
3761}
3762
e39e5b5e
JM		 3763static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3764 enum nl80211_auth_type auth_type,
3765 enum nl80211_commands cmd)
3766{
3767 if (auth_type > NL80211_AUTHTYPE_MAX)
3768 return false;
3769
3770 switch (cmd) {
3771 case NL80211_CMD_AUTHENTICATE:
3772 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3773 auth_type == NL80211_AUTHTYPE_SAE)
3774 return false;
63181060
JM		 3775 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3776 NL80211_EXT_FEATURE_FILS_STA) &&
3777 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3778 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3779 auth_type == NL80211_AUTHTYPE_FILS_PK))
3780 return false;
e39e5b5e
JM		 3781 return true;
3782 case NL80211_CMD_CONNECT:
3783 case NL80211_CMD_START_AP:
3784 /* SAE not supported yet */
3785 if (auth_type == NL80211_AUTHTYPE_SAE)
3786 return false;
63181060
JM		 3787 /* FILS not supported yet */
3788 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3789 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3790 auth_type == NL80211_AUTHTYPE_FILS_PK)
3791 return false;
e39e5b5e
JM		 3792 return true;
3793 default:
3794 return false;
3795 }
3796}
3797
8860020e
JB		 3798static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3799{
3800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3801 struct net_device *dev = info->user_ptr[1];
3802 struct wireless_dev *wdev = dev->ieee80211_ptr;
3803 struct cfg80211_ap_settings params;
3804 int err;
3805
3806 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3807 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3808 return -EOPNOTSUPP;
3809
3810 if (!rdev->ops->start_ap)
3811 return -EOPNOTSUPP;
3812
3813 if (wdev->beacon_interval)
3814 return -EALREADY;
3815
3816 memset(&params, 0, sizeof(params));
3817
3818 /* these are required for START_AP */
3819 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3820 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3821 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3822 return -EINVAL;
3823
a1193be8 3824 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3825 if (err)
3826 return err;
3827
3828 params.beacon_interval =
3829 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3830 params.dtim_period =
3831 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3832
0c317a02
PK		 3833 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3834 params.beacon_interval);
8860020e
JB		 3835 if (err)
3836 return err;
3837
3838 /*
3839 * In theory, some of these attributes should be required here
3840 * but since they were not used when the command was originally
3841 * added, keep them optional for old user space programs to let
3842 * them continue to work with drivers that do not need the
3843 * additional information -- drivers must check!
3844 */
3845 if (info->attrs[NL80211_ATTR_SSID]) {
3846 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3847 params.ssid_len =
3848 nla_len(info->attrs[NL80211_ATTR_SSID]);
3849 if (params.ssid_len == 0 ||
3850 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3851 return -EINVAL;
3852 }
3853
3854 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3855 params.hidden_ssid = nla_get_u32(
3856 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3857 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3858 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3859 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3860 return -EINVAL;
3861 }
3862
3863 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3864
3865 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3866 params.auth_type = nla_get_u32(
3867 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3868 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3869 NL80211_CMD_START_AP))
8860020e
JB		 3870 return -EINVAL;
3871 } else
3872 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3873
3874 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3875 NL80211_MAX_NR_CIPHER_SUITES);
3876 if (err)
3877 return err;
3878
1b658f11
VT		 3879 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3880 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3881 return -EOPNOTSUPP;
3882 params.inactivity_timeout = nla_get_u16(
3883 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3884 }
3885
53cabad7
JB		 3886 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3887 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3888 return -EINVAL;
3889 params.p2p_ctwindow =
3890 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3891 if (params.p2p_ctwindow > 127)
3892 return -EINVAL;
3893 if (params.p2p_ctwindow != 0 &&
3894 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3895 return -EINVAL;
3896 }
3897
3898 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3899 u8 tmp;
3900
3901 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3902 return -EINVAL;
3903 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3904 if (tmp > 1)
3905 return -EINVAL;
3906 params.p2p_opp_ps = tmp;
3907 if (params.p2p_opp_ps != 0 &&
3908 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3909 return -EINVAL;
3910 }
3911
aa430da4 3912 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3913 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3914 if (err)
3915 return err;
3916 } else if (wdev->preset_chandef.chan) {
3917 params.chandef = wdev->preset_chandef;
46c1dd0c 3918 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3919 return -EINVAL;
3920
923b352f
AN		 3921 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3922 wdev->iftype))
aa430da4
JB		 3923 return -EINVAL;
3924
a7c7fbff
PK		 3925 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3926 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
3927 if (err)
3928 return err;
3929
8564e382
JB		 3930 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3931 &params.beacon_rate);
a7c7fbff
PK		 3932 if (err)
3933 return err;
3934 }
3935
18998c38
EP		 3936 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3937 params.smps_mode =
3938 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3939 switch (params.smps_mode) {
3940 case NL80211_SMPS_OFF:
3941 break;
3942 case NL80211_SMPS_STATIC:
3943 if (!(rdev->wiphy.features &
3944 NL80211_FEATURE_STATIC_SMPS))
3945 return -EINVAL;
3946 break;
3947 case NL80211_SMPS_DYNAMIC:
3948 if (!(rdev->wiphy.features &
3949 NL80211_FEATURE_DYNAMIC_SMPS))
3950 return -EINVAL;
3951 break;
3952 default:
3953 return -EINVAL;
3954 }
3955 } else {
3956 params.smps_mode = NL80211_SMPS_OFF;
3957 }
3958
6e8ef842
PK		 3959 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3960 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3961 return -EOPNOTSUPP;
3962
4baf6bea
OO		 3963 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3964 params.acl = parse_acl_data(&rdev->wiphy, info);
3965 if (IS_ERR(params.acl))
3966 return PTR_ERR(params.acl);
3967 }
3968
c56589ed 3969 wdev_lock(wdev);
e35e4d28 3970 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3971 if (!err) {
683b6d3b 3972 wdev->preset_chandef = params.chandef;
8860020e 3973 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3974 wdev->chandef = params.chandef;
06e191e2
AQ		 3975 wdev->ssid_len = params.ssid_len;
3976 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3977 }
c56589ed 3978 wdev_unlock(wdev);
77765eaf
VT		 3979
3980 kfree(params.acl);
3981
56d1893d 3982 return err;
ed1b6cc7
JB		 3983}
3984
8860020e
JB		 3985static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3986{
3987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3988 struct net_device *dev = info->user_ptr[1];
3989 struct wireless_dev *wdev = dev->ieee80211_ptr;
3990 struct cfg80211_beacon_data params;
3991 int err;
3992
3993 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3995 return -EOPNOTSUPP;
3996
3997 if (!rdev->ops->change_beacon)
3998 return -EOPNOTSUPP;
3999
4000 if (!wdev->beacon_interval)
4001 return -EINVAL;
4002
a1193be8 4003 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 4004 if (err)
4005 return err;
4006
c56589ed
SW		 4007 wdev_lock(wdev);
4008 err = rdev_change_beacon(rdev, dev, &params);
4009 wdev_unlock(wdev);
4010
4011 return err;
8860020e
JB		 4012}
4013
4014static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 4015{
4c476991
JB		 4016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4017 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 4018
7c8d5e03 4019 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 4020}
4021
5727ef1b
JB		 4022static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4023 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4024 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4025 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 4026 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 4027 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 4028 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 4029};
4030
eccb8e8f 4031static int parse_station_flags(struct genl_info *info,
bdd3ae3d 4032 enum nl80211_iftype iftype,
eccb8e8f 4033 struct station_parameters *params)
5727ef1b
JB		 4034{
4035 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 4036 struct nlattr *nla;
5727ef1b
JB		 4037 int flag;
4038
eccb8e8f
JB		 4039 /*
4040 * Try parsing the new attribute first so userspace
4041 * can specify both for older kernels.
4042 */
4043 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4044 if (nla) {
4045 struct nl80211_sta_flag_update *sta_flags;
4046
4047 sta_flags = nla_data(nla);
4048 params->sta_flags_mask = sta_flags->mask;
4049 params->sta_flags_set = sta_flags->set;
77ee7c89 4050 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 4051 if ((params->sta_flags_mask |
4052 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4053 return -EINVAL;
4054 return 0;
4055 }
4056
4057 /* if present, parse the old attribute */
5727ef1b 4058
eccb8e8f 4059 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 4060 if (!nla)
4061 return 0;
4062
4063 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
4064 nla, sta_flags_policy))
4065 return -EINVAL;
4066
bdd3ae3d
JB		 4067 /*
4068 * Only allow certain flags for interface types so that
4069 * other attributes are silently ignored. Remember that
4070 * this is backward compatibility code with old userspace
4071 * and shouldn't be hit in other cases anyway.
4072 */
4073 switch (iftype) {
4074 case NL80211_IFTYPE_AP:
4075 case NL80211_IFTYPE_AP_VLAN:
4076 case NL80211_IFTYPE_P2P_GO:
4077 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4078 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4079 BIT(NL80211_STA_FLAG_WME) |
4080 BIT(NL80211_STA_FLAG_MFP);
4081 break;
4082 case NL80211_IFTYPE_P2P_CLIENT:
4083 case NL80211_IFTYPE_STATION:
4084 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4085 BIT(NL80211_STA_FLAG_TDLS_PEER);
4086 break;
4087 case NL80211_IFTYPE_MESH_POINT:
4088 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4089 BIT(NL80211_STA_FLAG_MFP) |
4090 BIT(NL80211_STA_FLAG_AUTHORIZED);
4091 default:
4092 return -EINVAL;
4093 }
5727ef1b 4094
3383b5a6
JB		 4095 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4096 if (flags[flag]) {
eccb8e8f 4097 params->sta_flags_set |= (1<<flag);
5727ef1b 4098
3383b5a6
JB		 4099 /* no longer support new API additions in old API */
4100 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4101 return -EINVAL;
4102 }
4103 }
4104
5727ef1b
JB		 4105 return 0;
4106}
4107
c8dcfd8a
FF		 4108static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4109 int attr)
4110{
4111 struct nlattr *rate;
8eb41c8d
VK		 4112 u32 bitrate;
4113 u16 bitrate_compat;
b51f3bee 4114 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 4115
4116 rate = nla_nest_start(msg, attr);
4117 if (!rate)
db9c64cf 4118 return false;
c8dcfd8a
FF		 4119
4120 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4121 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4122 /* report 16-bit bitrate only if we can */
4123 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4124 if (bitrate > 0 &&
4125 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4126 return false;
4127 if (bitrate_compat > 0 &&
4128 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4129 return false;
4130
b51f3bee
JB		 4131 switch (info->bw) {
4132 case RATE_INFO_BW_5:
4133 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4134 break;
4135 case RATE_INFO_BW_10:
4136 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4137 break;
4138 default:
4139 WARN_ON(1);
4140 /* fall through */
4141 case RATE_INFO_BW_20:
4142 rate_flg = 0;
4143 break;
4144 case RATE_INFO_BW_40:
4145 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4146 break;
4147 case RATE_INFO_BW_80:
4148 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4149 break;
4150 case RATE_INFO_BW_160:
4151 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4152 break;
4153 }
4154
4155 if (rate_flg && nla_put_flag(msg, rate_flg))
4156 return false;
4157
db9c64cf
JB		 4158 if (info->flags & RATE_INFO_FLAGS_MCS) {
4159 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4160 return false;
db9c64cf
JB		 4161 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4162 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4163 return false;
4164 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4165 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4166 return false;
4167 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4168 return false;
db9c64cf
JB		 4169 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4170 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4171 return false;
4172 }
c8dcfd8a
FF		 4173
4174 nla_nest_end(msg, rate);
4175 return true;
c8dcfd8a
FF		 4176}
4177
119363c7
FF		 4178static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4179 int id)
4180{
4181 void *attr;
4182 int i = 0;
4183
4184 if (!mask)
4185 return true;
4186
4187 attr = nla_nest_start(msg, id);
4188 if (!attr)
4189 return false;
4190
4191 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4192 if (!(mask & BIT(i)))
4193 continue;
4194
4195 if (nla_put_u8(msg, i, signal[i]))
4196 return false;
4197 }
4198
4199 nla_nest_end(msg, attr);
4200
4201 return true;
4202}
4203
cf5ead82
JB		 4204static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4205 u32 seq, int flags,
66266b3a
JL		 4206 struct cfg80211_registered_device *rdev,
4207 struct net_device *dev,
98b62183 4208 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4209{
4210 void *hdr;
f4263c98 4211 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4212
cf5ead82 4213 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4214 if (!hdr)
4215 return -1;
4216
9360ffd1
DM		 4217 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4218 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4219 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4220 goto nla_put_failure;
f5ea9120 4221
2ec600d6
LCC		 4222 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4223 if (!sinfoattr)
fd5b74dc 4224 goto nla_put_failure;
319090bf
JB		 4225
4226#define PUT_SINFO(attr, memb, type) do { \
d686b920 4227 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4228 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4229 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4230 sinfo->memb)) \
4231 goto nla_put_failure; \
4232 } while (0)
d686b920
JB		 4233#define PUT_SINFO_U64(attr, memb) do { \
4234 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4235 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4236 sinfo->memb, NL80211_STA_INFO_PAD)) \
4237 goto nla_put_failure; \
4238 } while (0)
319090bf
JB		 4239
4240 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4241 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4242
4243 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4244 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4245 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4246 (u32)sinfo->rx_bytes))
9360ffd1 4247 goto nla_put_failure;
319090bf
JB		 4248
4249 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4250 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4251 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4252 (u32)sinfo->tx_bytes))
4253 goto nla_put_failure;
319090bf 4254
d686b920
JB		 4255 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4256 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4257 PUT_SINFO(LLID, llid, u16);
4258 PUT_SINFO(PLID, plid, u16);
4259 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4260 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4261
66266b3a
JL		 4262 switch (rdev->wiphy.signal_type) {
4263 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4264 PUT_SINFO(SIGNAL, signal, u8);
4265 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4266 break;
4267 default:
4268 break;
4269 }
319090bf 4270 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4271 if (!nl80211_put_signal(msg, sinfo->chains,
4272 sinfo->chain_signal,
4273 NL80211_STA_INFO_CHAIN_SIGNAL))
4274 goto nla_put_failure;
4275 }
319090bf 4276 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4277 if (!nl80211_put_signal(msg, sinfo->chains,
4278 sinfo->chain_signal_avg,
4279 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4280 goto nla_put_failure;
4281 }
319090bf 4282 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4283 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4284 NL80211_STA_INFO_TX_BITRATE))
4285 goto nla_put_failure;
4286 }
319090bf 4287 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4288 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4289 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4290 goto nla_put_failure;
420e7fab 4291 }
319090bf
JB		 4292
4293 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4294 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4295 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4296 PUT_SINFO(TX_FAILED, tx_failed, u32);
4297 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4298 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4299 PUT_SINFO(LOCAL_PM, local_pm, u32);
4300 PUT_SINFO(PEER_PM, peer_pm, u32);
4301 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4302
4303 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4304 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4305 if (!bss_param)
4306 goto nla_put_failure;
4307
9360ffd1
DM		 4308 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4309 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4310 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4311 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4312 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4313 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4314 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4315 sinfo->bss_param.dtim_period) ||
4316 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4317 sinfo->bss_param.beacon_interval))
4318 goto nla_put_failure;
f4263c98
PS		 4319
4320 nla_nest_end(msg, bss_param);
4321 }
319090bf 4322 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4323 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4324 sizeof(struct nl80211_sta_flag_update),
4325 &sinfo->sta_flags))
4326 goto nla_put_failure;
319090bf 4327
d686b920
JB		 4328 PUT_SINFO_U64(T_OFFSET, t_offset);
4329 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4330 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4331 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4332
4333#undef PUT_SINFO
d686b920 4334#undef PUT_SINFO_U64
6de39808
JB		 4335
4336 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4337 struct nlattr *tidsattr;
4338 int tid;
4339
4340 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4341 if (!tidsattr)
4342 goto nla_put_failure;
4343
4344 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4345 struct cfg80211_tid_stats *tidstats;
4346 struct nlattr *tidattr;
4347
4348 tidstats = &sinfo->pertid[tid];
4349
4350 if (!tidstats->filled)
4351 continue;
4352
4353 tidattr = nla_nest_start(msg, tid + 1);
4354 if (!tidattr)
4355 goto nla_put_failure;
4356
d686b920 4357#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4358 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4359 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4360 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4361 goto nla_put_failure; \
4362 } while (0)
4363
d686b920
JB		 4364 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4365 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4366 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4367 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4368
d686b920 4369#undef PUT_TIDVAL_U64
6de39808
JB		 4370 nla_nest_end(msg, tidattr);
4371 }
4372
4373 nla_nest_end(msg, tidsattr);
4374 }
4375
2ec600d6 4376 nla_nest_end(msg, sinfoattr);
fd5b74dc 4377
319090bf 4378 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4379 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4380 sinfo->assoc_req_ies))
4381 goto nla_put_failure;
50d3dfb7 4382
053c095a
JB		 4383 genlmsg_end(msg, hdr);
4384 return 0;
fd5b74dc
JB		 4385
4386 nla_put_failure:
bc3ed28c
TG		 4387 genlmsg_cancel(msg, hdr);
4388 return -EMSGSIZE;
fd5b74dc
JB		 4389}
4390
2ec600d6 4391static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4392 struct netlink_callback *cb)
2ec600d6 4393{
2ec600d6 4394 struct station_info sinfo;
1b8ec87a 4395 struct cfg80211_registered_device *rdev;
97990a06 4396 struct wireless_dev *wdev;
2ec600d6 4397 u8 mac_addr[ETH_ALEN];
97990a06 4398 int sta_idx = cb->args[2];
2ec600d6 4399 int err;
2ec600d6 4400
1b8ec87a 4401 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4402 if (err)
4403 return err;
bba95fef 4404
97990a06
JB		 4405 if (!wdev->netdev) {
4406 err = -EINVAL;
4407 goto out_err;
4408 }
4409
1b8ec87a 4410 if (!rdev->ops->dump_station) {
eec60b03 4411 err = -EOPNOTSUPP;
bba95fef
JB		 4412 goto out_err;
4413 }
4414
bba95fef 4415 while (1) {
f612cedf 4416 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4417 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4418 mac_addr, &sinfo);
bba95fef
JB		 4419 if (err == -ENOENT)
4420 break;
4421 if (err)
3b85875a 4422 goto out_err;
bba95fef 4423
cf5ead82 4424 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4425 NETLINK_CB(cb->skb).portid,
bba95fef 4426 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4427 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4428 &sinfo) < 0)
4429 goto out;
4430
4431 sta_idx++;
4432 }
4433
bba95fef 4434 out:
97990a06 4435 cb->args[2] = sta_idx;
bba95fef 4436 err = skb->len;
bba95fef 4437 out_err:
1b8ec87a 4438 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4439
4440 return err;
2ec600d6 4441}
fd5b74dc 4442
5727ef1b
JB		 4443static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4444{
4c476991
JB		 4445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4446 struct net_device *dev = info->user_ptr[1];
2ec600d6 4447 struct station_info sinfo;
fd5b74dc
JB		 4448 struct sk_buff *msg;
4449 u8 *mac_addr = NULL;
4c476991 4450 int err;
fd5b74dc 4451
2ec600d6 4452 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4453
4454 if (!info->attrs[NL80211_ATTR_MAC])
4455 return -EINVAL;
4456
4457 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4458
4c476991
JB		 4459 if (!rdev->ops->get_station)
4460 return -EOPNOTSUPP;
3b85875a 4461
e35e4d28 4462 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4463 if (err)
4c476991 4464 return err;
2ec600d6 4465
fd2120ca 4466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4467 if (!msg)
4c476991 4468 return -ENOMEM;
fd5b74dc 4469
cf5ead82
JB		 4470 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4471 info->snd_portid, info->snd_seq, 0,
66266b3a 4472 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4473 nlmsg_free(msg);
4474 return -ENOBUFS;
4475 }
3b85875a 4476
4c476991 4477 return genlmsg_reply(msg, info);
5727ef1b
JB		 4478}
4479
77ee7c89
JB		 4480int cfg80211_check_station_change(struct wiphy *wiphy,
4481 struct station_parameters *params,
4482 enum cfg80211_station_type statype)
4483{
e4208427
AB		 4484 if (params->listen_interval != -1 &&
4485 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4486 return -EINVAL;
e4208427 4487
17b94247
AB		 4488 if (params->support_p2p_ps != -1 &&
4489 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4490 return -EINVAL;
4491
c72e1140 4492 if (params->aid &&
e4208427
AB		 4493 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4494 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4495 return -EINVAL;
4496
4497 /* When you run into this, adjust the code below for the new flag */
4498 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4499
4500 switch (statype) {
eef941e6
TP		 4501 case CFG80211_STA_MESH_PEER_KERNEL:
4502 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4503 /*
4504 * No ignoring the TDLS flag here -- the userspace mesh
4505 * code doesn't have the bug of including TDLS in the
4506 * mask everywhere.
4507 */
4508 if (params->sta_flags_mask &
4509 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4510 BIT(NL80211_STA_FLAG_MFP) |
4511 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4512 return -EINVAL;
4513 break;
4514 case CFG80211_STA_TDLS_PEER_SETUP:
4515 case CFG80211_STA_TDLS_PEER_ACTIVE:
4516 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4517 return -EINVAL;
4518 /* ignore since it can't change */
4519 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4520 break;
4521 default:
4522 /* disallow mesh-specific things */
4523 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4524 return -EINVAL;
4525 if (params->local_pm)
4526 return -EINVAL;
4527 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4528 return -EINVAL;
4529 }
4530
4531 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4532 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4533 /* TDLS can't be set, ... */
4534 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4535 return -EINVAL;
4536 /*
4537 * ... but don't bother the driver with it. This works around
4538 * a hostapd/wpa_supplicant issue -- it always includes the
4539 * TLDS_PEER flag in the mask even for AP mode.
4540 */
4541 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4542 }
4543
47edb11b
AB		 4544 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4545 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4546 /* reject other things that can't change */
4547 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4548 return -EINVAL;
4549 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4550 return -EINVAL;
4551 if (params->supported_rates)
4552 return -EINVAL;
4553 if (params->ext_capab || params->ht_capa || params->vht_capa)
4554 return -EINVAL;
4555 }
4556
47edb11b
AB		 4557 if (statype != CFG80211_STA_AP_CLIENT &&
4558 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4559 if (params->vlan)
4560 return -EINVAL;
4561 }
4562
4563 switch (statype) {
4564 case CFG80211_STA_AP_MLME_CLIENT:
4565 /* Use this only for authorizing/unauthorizing a station */
4566 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4567 return -EOPNOTSUPP;
4568 break;
4569 case CFG80211_STA_AP_CLIENT:
47edb11b 4570 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4571 /* accept only the listed bits */
4572 if (params->sta_flags_mask &
4573 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4574 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4575 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4576 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4577 BIT(NL80211_STA_FLAG_WME) |
4578 BIT(NL80211_STA_FLAG_MFP)))
4579 return -EINVAL;
4580
4581 /* but authenticated/associated only if driver handles it */
4582 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4583 params->sta_flags_mask &
4584 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4585 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4586 return -EINVAL;
4587 break;
4588 case CFG80211_STA_IBSS:
4589 case CFG80211_STA_AP_STA:
4590 /* reject any changes other than AUTHORIZED */
4591 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4592 return -EINVAL;
4593 break;
4594 case CFG80211_STA_TDLS_PEER_SETUP:
4595 /* reject any changes other than AUTHORIZED or WME */
4596 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4597 BIT(NL80211_STA_FLAG_WME)))
4598 return -EINVAL;
4599 /* force (at least) rates when authorizing */
4600 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4601 !params->supported_rates)
4602 return -EINVAL;
4603 break;
4604 case CFG80211_STA_TDLS_PEER_ACTIVE:
4605 /* reject any changes */
4606 return -EINVAL;
eef941e6 4607 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4608 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4609 return -EINVAL;
4610 break;
eef941e6 4611 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4612 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4613 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4614 return -EINVAL;
4615 break;
4616 }
4617
06f7c88c
BL		 4618 /*
4619 * Older kernel versions ignored this attribute entirely, so don't
4620 * reject attempts to update it but mark it as unused instead so the
4621 * driver won't look at the data.
4622 */
4623 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4624 statype != CFG80211_STA_TDLS_PEER_SETUP)
4625 params->opmode_notif_used = false;
4626
77ee7c89
JB		 4627 return 0;
4628}
4629EXPORT_SYMBOL(cfg80211_check_station_change);
4630
5727ef1b 4631/*
c258d2de 4632 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4633 */
80b99899
JB		 4634static struct net_device *get_vlan(struct genl_info *info,
4635 struct cfg80211_registered_device *rdev)
5727ef1b 4636{
463d0183 4637 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4638 struct net_device *v;
4639 int ret;
4640
4641 if (!vlanattr)
4642 return NULL;
4643
4644 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4645 if (!v)
4646 return ERR_PTR(-ENODEV);
4647
4648 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4649 ret = -EINVAL;
4650 goto error;
5727ef1b 4651 }
80b99899 4652
77ee7c89
JB		 4653 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4654 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4655 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4656 ret = -EINVAL;
4657 goto error;
4658 }
4659
80b99899
JB		 4660 if (!netif_running(v)) {
4661 ret = -ENETDOWN;
4662 goto error;
4663 }
4664
4665 return v;
4666 error:
4667 dev_put(v);
4668 return ERR_PTR(ret);
5727ef1b
JB		 4669}
4670
94e860f1
JB		 4671static const struct nla_policy
4672nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4673 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4674 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4675};
4676
ff276691
JB		 4677static int nl80211_parse_sta_wme(struct genl_info *info,
4678 struct station_parameters *params)
df881293 4679{
df881293
JM		 4680 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4681 struct nlattr *nla;
4682 int err;
4683
df881293
JM		 4684 /* parse WME attributes if present */
4685 if (!info->attrs[NL80211_ATTR_STA_WME])
4686 return 0;
4687
4688 nla = info->attrs[NL80211_ATTR_STA_WME];
4689 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4690 nl80211_sta_wme_policy);
4691 if (err)
4692 return err;
4693
4694 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4695 params->uapsd_queues = nla_get_u8(
4696 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4697 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4698 return -EINVAL;
4699
4700 if (tb[NL80211_STA_WME_MAX_SP])
4701 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4702
4703 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4704 return -EINVAL;
4705
4706 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4707
4708 return 0;
4709}
4710
c01fc9ad
SD		 4711static int nl80211_parse_sta_channel_info(struct genl_info *info,
4712 struct station_parameters *params)
4713{
4714 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4715 params->supported_channels =
4716 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4717 params->supported_channels_len =
4718 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4719 /*
4720 * Need to include at least one (first channel, number of
4721 * channels) tuple for each subband, and must have proper
4722 * tuples for the rest of the data as well.
4723 */
4724 if (params->supported_channels_len < 2)
4725 return -EINVAL;
4726 if (params->supported_channels_len % 2)
4727 return -EINVAL;
4728 }
4729
4730 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4731 params->supported_oper_classes =
4732 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4733 params->supported_oper_classes_len =
4734 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4735 /*
4736 * The value of the Length field of the Supported Operating
4737 * Classes element is between 2 and 253.
4738 */
4739 if (params->supported_oper_classes_len < 2 ||
4740 params->supported_oper_classes_len > 253)
4741 return -EINVAL;
4742 }
4743 return 0;
4744}
4745
ff276691
JB		 4746static int nl80211_set_station_tdls(struct genl_info *info,
4747 struct station_parameters *params)
4748{
c01fc9ad 4749 int err;
ff276691 4750 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4751 if (info->attrs[NL80211_ATTR_PEER_AID])
4752 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4753 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4754 params->ht_capa =
4755 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4756 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4757 params->vht_capa =
4758 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4759
c01fc9ad
SD		 4760 err = nl80211_parse_sta_channel_info(info, params);
4761 if (err)
4762 return err;
4763
ff276691
JB		 4764 return nl80211_parse_sta_wme(info, params);
4765}
4766
5727ef1b
JB		 4767static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4768{
4c476991 4769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4770 struct net_device *dev = info->user_ptr[1];
5727ef1b 4771 struct station_parameters params;
77ee7c89
JB		 4772 u8 *mac_addr;
4773 int err;
5727ef1b
JB		 4774
4775 memset(&params, 0, sizeof(params));
4776
77ee7c89
JB		 4777 if (!rdev->ops->change_station)
4778 return -EOPNOTSUPP;
4779
e4208427
AB		 4780 /*
4781 * AID and listen_interval properties can be set only for unassociated
4782 * station. Include these parameters here and will check them in
4783 * cfg80211_check_station_change().
4784 */
a9bc31e4
AB		 4785 if (info->attrs[NL80211_ATTR_STA_AID])
4786 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4787
4788 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4789 params.listen_interval =
4790 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4791 else
4792 params.listen_interval = -1;
5727ef1b 4793
17b94247
AB		 4794 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4795 u8 tmp;
4796
4797 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4798 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4799 return -EINVAL;
4800
4801 params.support_p2p_ps = tmp;
4802 } else {
4803 params.support_p2p_ps = -1;
4804 }
4805
5727ef1b
JB		 4806 if (!info->attrs[NL80211_ATTR_MAC])
4807 return -EINVAL;
4808
4809 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4810
4811 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4812 params.supported_rates =
4813 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4814 params.supported_rates_len =
4815 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4816 }
4817
9d62a986
JM		 4818 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4819 params.capability =
4820 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4821 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4822 }
4823
4824 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4825 params.ext_capab =
4826 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4827 params.ext_capab_len =
4828 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4829 }
4830
bdd3ae3d 4831 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4832 return -EINVAL;
4833
f8bacc21 4834 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4835 params.plink_action =
f8bacc21
JB		 4836 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4837 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4838 return -EINVAL;
4839 }
2ec600d6 4840
f8bacc21 4841 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4842 params.plink_state =
f8bacc21
JB		 4843 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4844 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4845 return -EINVAL;
7d27a0ba
MH		 4846 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4847 params.peer_aid = nla_get_u16(
4848 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4849 if (params.peer_aid > IEEE80211_MAX_AID)
4850 return -EINVAL;
4851 }
f8bacc21
JB		 4852 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4853 }
9c3990aa 4854
3b1c5a53
MP		 4855 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4856 enum nl80211_mesh_power_mode pm = nla_get_u32(
4857 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4858
4859 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4860 pm > NL80211_MESH_POWER_MAX)
4861 return -EINVAL;
4862
4863 params.local_pm = pm;
4864 }
4865
06f7c88c
BL		 4866 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4867 params.opmode_notif_used = true;
4868 params.opmode_notif =
4869 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4870 }
4871
77ee7c89
JB		 4872 /* Include parameters for TDLS peer (will check later) */
4873 err = nl80211_set_station_tdls(info, &params);
4874 if (err)
4875 return err;
4876
4877 params.vlan = get_vlan(info, rdev);
4878 if (IS_ERR(params.vlan))
4879 return PTR_ERR(params.vlan);
4880
a97f4424
JB		 4881 switch (dev->ieee80211_ptr->iftype) {
4882 case NL80211_IFTYPE_AP:
4883 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4884 case NL80211_IFTYPE_P2P_GO:
074ac8df 4885 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4886 case NL80211_IFTYPE_STATION:
267335d6 4887 case NL80211_IFTYPE_ADHOC:
a97f4424 4888 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4889 break;
4890 default:
77ee7c89
JB		 4891 err = -EOPNOTSUPP;
4892 goto out_put_vlan;
034d655e
JB		 4893 }
4894
77ee7c89 4895 /* driver will call cfg80211_check_station_change() */
e35e4d28 4896 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4897
77ee7c89 4898 out_put_vlan:
5727ef1b
JB		 4899 if (params.vlan)
4900 dev_put(params.vlan);
3b85875a 4901
5727ef1b
JB		 4902 return err;
4903}
4904
4905static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4906{
4c476991 4907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4908 int err;
4c476991 4909 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4910 struct station_parameters params;
4911 u8 *mac_addr = NULL;
bda95eb1
JB		 4912 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4913 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4914
4915 memset(&params, 0, sizeof(params));
4916
984c311b
JB		 4917 if (!rdev->ops->add_station)
4918 return -EOPNOTSUPP;
4919
5727ef1b
JB		 4920 if (!info->attrs[NL80211_ATTR_MAC])
4921 return -EINVAL;
4922
5727ef1b
JB		 4923 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4924 return -EINVAL;
4925
4926 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4927 return -EINVAL;
4928
5e4b6f56
JM		 4929 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4930 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4931 return -EINVAL;
4932
5727ef1b
JB		 4933 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4934 params.supported_rates =
4935 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4936 params.supported_rates_len =
4937 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4938 params.listen_interval =
4939 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4940
17b94247
AB		 4941 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4942 u8 tmp;
4943
4944 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4945 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4946 return -EINVAL;
4947
4948 params.support_p2p_ps = tmp;
4949 } else {
4950 /*
4951 * if not specified, assume it's supported for P2P GO interface,
4952 * and is NOT supported for AP interface
4953 */
4954 params.support_p2p_ps =
4955 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4956 }
4957
3d124ea2 4958 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4959 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4960 else
4961 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4962 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4963 return -EINVAL;
51b50fbe 4964
9d62a986
JM		 4965 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4966 params.capability =
4967 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4968 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4969 }
4970
4971 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4972 params.ext_capab =
4973 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4974 params.ext_capab_len =
4975 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4976 }
4977
36aedc90
JM		 4978 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4979 params.ht_capa =
4980 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4981
f461be3e
MP		 4982 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4983 params.vht_capa =
4984 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4985
60f4a7b1
MK		 4986 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4987 params.opmode_notif_used = true;
4988 params.opmode_notif =
4989 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4990 }
4991
f8bacc21 4992 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4993 params.plink_action =
f8bacc21
JB		 4994 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4995 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4996 return -EINVAL;
4997 }
96b78dff 4998
c01fc9ad
SD		 4999 err = nl80211_parse_sta_channel_info(info, &params);
5000 if (err)
5001 return err;
5002
ff276691
JB		 5003 err = nl80211_parse_sta_wme(info, &params);
5004 if (err)
5005 return err;
bdd90d5e 5006
bdd3ae3d 5007 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 5008 return -EINVAL;
5009
496fcc29
JB		 5010 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5011 * as userspace might just pass through the capabilities from the IEs
5012 * directly, rather than enforcing this restriction and returning an
5013 * error in this case.
5014 */
5015 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5016 params.ht_capa = NULL;
5017 params.vht_capa = NULL;
5018 }
5019
77ee7c89
JB		 5020 /* When you run into this, adjust the code below for the new flag */
5021 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5022
bdd90d5e
JB		 5023 switch (dev->ieee80211_ptr->iftype) {
5024 case NL80211_IFTYPE_AP:
5025 case NL80211_IFTYPE_AP_VLAN:
5026 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 5027 /* ignore WME attributes if iface/sta is not capable */
5028 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5029 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5030 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 5031
bdd90d5e 5032 /* TDLS peers cannot be added */
3d124ea2
JM		 5033 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5034 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 5035 return -EINVAL;
bdd90d5e
JB		 5036 /* but don't bother the driver with it */
5037 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5038
d582cffb
JB		 5039 /* allow authenticated/associated only if driver handles it */
5040 if (!(rdev->wiphy.features &
5041 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5042 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5043 return -EINVAL;
5044
bda95eb1
JB		 5045 /* Older userspace, or userspace wanting to be compatible with
5046 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5047 * and assoc flags in the mask, but assumes the station will be
5048 * added as associated anyway since this was the required driver
5049 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5050 * introduced.
5051 * In order to not bother drivers with this quirk in the API
5052 * set the flags in both the mask and set for new stations in
5053 * this case.
5054 */
5055 if (!(params.sta_flags_mask & auth_assoc)) {
5056 params.sta_flags_mask |= auth_assoc;
5057 params.sta_flags_set |= auth_assoc;
5058 }
5059
bdd90d5e
JB		 5060 /* must be last in here for error handling */
5061 params.vlan = get_vlan(info, rdev);
5062 if (IS_ERR(params.vlan))
5063 return PTR_ERR(params.vlan);
5064 break;
5065 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5066 /* ignore uAPSD data */
5067 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5068
d582cffb
JB		 5069 /* associated is disallowed */
5070 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5071 return -EINVAL;
bdd90d5e 5072 /* TDLS peers cannot be added */
3d124ea2
JM		 5073 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5074 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 5075 return -EINVAL;
5076 break;
5077 case NL80211_IFTYPE_STATION:
93d08f0b 5078 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5079 /* ignore uAPSD data */
5080 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5081
77ee7c89
JB		 5082 /* these are disallowed */
5083 if (params.sta_flags_mask &
5084 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5085 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5086 return -EINVAL;
bdd90d5e
JB		 5087 /* Only TDLS peers can be added */
5088 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5089 return -EINVAL;
5090 /* Can only add if TDLS ... */
5091 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5092 return -EOPNOTSUPP;
5093 /* ... with external setup is supported */
5094 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5095 return -EOPNOTSUPP;
77ee7c89
JB		 5096 /*
5097 * Older wpa_supplicant versions always mark the TDLS peer
5098 * as authorized, but it shouldn't yet be.
5099 */
5100 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5101 break;
5102 default:
5103 return -EOPNOTSUPP;
c75786c9
EP		 5104 }
5105
bdd90d5e 5106 /* be aware of params.vlan when changing code here */
5727ef1b 5107
e35e4d28 5108 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5109
5727ef1b
JB		 5110 if (params.vlan)
5111 dev_put(params.vlan);
5727ef1b
JB		 5112 return err;
5113}
5114
5115static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5116{
4c476991
JB		 5117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5118 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5119 struct station_del_parameters params;
5120
5121 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5122
5123 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5124 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5125
e80cf853 5126 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5127 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5128 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5129 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5130 return -EINVAL;
5727ef1b 5131
4c476991
JB		 5132 if (!rdev->ops->del_station)
5133 return -EOPNOTSUPP;
3b85875a 5134
98856866
JM		 5135 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5136 params.subtype =
5137 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5138 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5139 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5140 return -EINVAL;
5141 } else {
5142 /* Default to Deauthentication frame */
5143 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5144 }
5145
5146 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5147 params.reason_code =
5148 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5149 if (params.reason_code == 0)
5150 return -EINVAL; /* 0 is reserved */
5151 } else {
5152 /* Default to reason code 2 */
5153 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5154 }
5155
89c771e5 5156 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5157}
5158
15e47304 5159static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5160 int flags, struct net_device *dev,
5161 u8 *dst, u8 *next_hop,
5162 struct mpath_info *pinfo)
5163{
5164 void *hdr;
5165 struct nlattr *pinfoattr;
5166
1ef4c850 5167 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5168 if (!hdr)
5169 return -1;
5170
9360ffd1
DM		 5171 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5172 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5173 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5174 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5175 goto nla_put_failure;
f5ea9120 5176
2ec600d6
LCC		 5177 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5178 if (!pinfoattr)
5179 goto nla_put_failure;
9360ffd1
DM		 5180 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5181 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5182 pinfo->frame_qlen))
5183 goto nla_put_failure;
5184 if (((pinfo->filled & MPATH_INFO_SN) &&
5185 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5186 ((pinfo->filled & MPATH_INFO_METRIC) &&
5187 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5188 pinfo->metric)) ||
5189 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5190 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5191 pinfo->exptime)) ||
5192 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5193 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5194 pinfo->flags)) ||
5195 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5196 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5197 pinfo->discovery_timeout)) ||
5198 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5199 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5200 pinfo->discovery_retries)))
5201 goto nla_put_failure;
2ec600d6
LCC		 5202
5203 nla_nest_end(msg, pinfoattr);
5204
053c095a
JB		 5205 genlmsg_end(msg, hdr);
5206 return 0;
2ec600d6
LCC		 5207
5208 nla_put_failure:
bc3ed28c
TG		 5209 genlmsg_cancel(msg, hdr);
5210 return -EMSGSIZE;
2ec600d6
LCC		 5211}
5212
5213static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5214 struct netlink_callback *cb)
2ec600d6 5215{
2ec600d6 5216 struct mpath_info pinfo;
1b8ec87a 5217 struct cfg80211_registered_device *rdev;
97990a06 5218 struct wireless_dev *wdev;
2ec600d6
LCC		 5219 u8 dst[ETH_ALEN];
5220 u8 next_hop[ETH_ALEN];
97990a06 5221 int path_idx = cb->args[2];
2ec600d6 5222 int err;
2ec600d6 5223
1b8ec87a 5224 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5225 if (err)
5226 return err;
bba95fef 5227
1b8ec87a 5228 if (!rdev->ops->dump_mpath) {
eec60b03 5229 err = -EOPNOTSUPP;
bba95fef
JB		 5230 goto out_err;
5231 }
5232
97990a06 5233 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5234 err = -EOPNOTSUPP;
0448b5fc 5235 goto out_err;
eec60b03
JM		 5236 }
5237
bba95fef 5238 while (1) {
1b8ec87a 5239 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5240 next_hop, &pinfo);
bba95fef 5241 if (err == -ENOENT)
2ec600d6 5242 break;
bba95fef 5243 if (err)
3b85875a 5244 goto out_err;
2ec600d6 5245
15e47304 5246 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5247 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5248 wdev->netdev, dst, next_hop,
bba95fef
JB		 5249 &pinfo) < 0)
5250 goto out;
2ec600d6 5251
bba95fef 5252 path_idx++;
2ec600d6 5253 }
2ec600d6 5254
bba95fef 5255 out:
97990a06 5256 cb->args[2] = path_idx;
bba95fef 5257 err = skb->len;
bba95fef 5258 out_err:
1b8ec87a 5259 nl80211_finish_wdev_dump(rdev);
bba95fef 5260 return err;
2ec600d6
LCC		 5261}
5262
5263static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5264{
4c476991 5265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5266 int err;
4c476991 5267 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5268 struct mpath_info pinfo;
5269 struct sk_buff *msg;
5270 u8 *dst = NULL;
5271 u8 next_hop[ETH_ALEN];
5272
5273 memset(&pinfo, 0, sizeof(pinfo));
5274
5275 if (!info->attrs[NL80211_ATTR_MAC])
5276 return -EINVAL;
5277
5278 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5279
4c476991
JB		 5280 if (!rdev->ops->get_mpath)
5281 return -EOPNOTSUPP;
2ec600d6 5282
4c476991
JB		 5283 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5284 return -EOPNOTSUPP;
eec60b03 5285
e35e4d28 5286 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5287 if (err)
4c476991 5288 return err;
2ec600d6 5289
fd2120ca 5290 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5291 if (!msg)
4c476991 5292 return -ENOMEM;
2ec600d6 5293
15e47304 5294 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5295 dev, dst, next_hop, &pinfo) < 0) {
5296 nlmsg_free(msg);
5297 return -ENOBUFS;
5298 }
3b85875a 5299
4c476991 5300 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5301}
5302
5303static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5304{
4c476991
JB		 5305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5306 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5307 u8 *dst = NULL;
5308 u8 *next_hop = NULL;
5309
5310 if (!info->attrs[NL80211_ATTR_MAC])
5311 return -EINVAL;
5312
5313 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5314 return -EINVAL;
5315
5316 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5317 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5318
4c476991
JB		 5319 if (!rdev->ops->change_mpath)
5320 return -EOPNOTSUPP;
35a8efe1 5321
4c476991
JB		 5322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5323 return -EOPNOTSUPP;
2ec600d6 5324
e35e4d28 5325 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5326}
4c476991 5327
2ec600d6
LCC		 5328static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5329{
4c476991
JB		 5330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5331 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5332 u8 *dst = NULL;
5333 u8 *next_hop = NULL;
5334
5335 if (!info->attrs[NL80211_ATTR_MAC])
5336 return -EINVAL;
5337
5338 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5339 return -EINVAL;
5340
5341 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5342 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5343
4c476991
JB		 5344 if (!rdev->ops->add_mpath)
5345 return -EOPNOTSUPP;
35a8efe1 5346
4c476991
JB		 5347 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5348 return -EOPNOTSUPP;
2ec600d6 5349
e35e4d28 5350 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5351}
5352
5353static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5354{
4c476991
JB		 5355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5356 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5357 u8 *dst = NULL;
5358
5359 if (info->attrs[NL80211_ATTR_MAC])
5360 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5361
4c476991
JB		 5362 if (!rdev->ops->del_mpath)
5363 return -EOPNOTSUPP;
3b85875a 5364
e35e4d28 5365 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5366}
5367
66be7d2b
HR		 5368static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5369{
5370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5371 int err;
5372 struct net_device *dev = info->user_ptr[1];
5373 struct mpath_info pinfo;
5374 struct sk_buff *msg;
5375 u8 *dst = NULL;
5376 u8 mpp[ETH_ALEN];
5377
5378 memset(&pinfo, 0, sizeof(pinfo));
5379
5380 if (!info->attrs[NL80211_ATTR_MAC])
5381 return -EINVAL;
5382
5383 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5384
5385 if (!rdev->ops->get_mpp)
5386 return -EOPNOTSUPP;
5387
5388 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5389 return -EOPNOTSUPP;
5390
5391 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5392 if (err)
5393 return err;
5394
5395 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5396 if (!msg)
5397 return -ENOMEM;
5398
5399 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5400 dev, dst, mpp, &pinfo) < 0) {
5401 nlmsg_free(msg);
5402 return -ENOBUFS;
5403 }
5404
5405 return genlmsg_reply(msg, info);
5406}
5407
5408static int nl80211_dump_mpp(struct sk_buff *skb,
5409 struct netlink_callback *cb)
5410{
5411 struct mpath_info pinfo;
5412 struct cfg80211_registered_device *rdev;
5413 struct wireless_dev *wdev;
5414 u8 dst[ETH_ALEN];
5415 u8 mpp[ETH_ALEN];
5416 int path_idx = cb->args[2];
5417 int err;
5418
5419 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5420 if (err)
5421 return err;
5422
5423 if (!rdev->ops->dump_mpp) {
5424 err = -EOPNOTSUPP;
5425 goto out_err;
5426 }
5427
5428 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5429 err = -EOPNOTSUPP;
5430 goto out_err;
5431 }
5432
5433 while (1) {
5434 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5435 mpp, &pinfo);
5436 if (err == -ENOENT)
5437 break;
5438 if (err)
5439 goto out_err;
5440
5441 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5442 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5443 wdev->netdev, dst, mpp,
5444 &pinfo) < 0)
5445 goto out;
5446
5447 path_idx++;
5448 }
5449
5450 out:
5451 cb->args[2] = path_idx;
5452 err = skb->len;
5453 out_err:
5454 nl80211_finish_wdev_dump(rdev);
5455 return err;
5456}
5457
9f1ba906
JM		 5458static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5459{
4c476991
JB		 5460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5461 struct net_device *dev = info->user_ptr[1];
c56589ed 5462 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5463 struct bss_parameters params;
c56589ed 5464 int err;
9f1ba906
JM		 5465
5466 memset(&params, 0, sizeof(params));
5467 /* default to not changing parameters */
5468 params.use_cts_prot = -1;
5469 params.use_short_preamble = -1;
5470 params.use_short_slot_time = -1;
fd8aaaf3 5471 params.ap_isolate = -1;
50b12f59 5472 params.ht_opmode = -1;
53cabad7
JB		 5473 params.p2p_ctwindow = -1;
5474 params.p2p_opp_ps = -1;
9f1ba906
JM		 5475
5476 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5477 params.use_cts_prot =
5478 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5479 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5480 params.use_short_preamble =
5481 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5482 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5483 params.use_short_slot_time =
5484 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5485 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5486 params.basic_rates =
5487 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5488 params.basic_rates_len =
5489 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5490 }
fd8aaaf3
FF		 5491 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5492 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5493 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5494 params.ht_opmode =
5495 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5496
53cabad7
JB		 5497 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5498 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5499 return -EINVAL;
5500 params.p2p_ctwindow =
5501 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5502 if (params.p2p_ctwindow < 0)
5503 return -EINVAL;
5504 if (params.p2p_ctwindow != 0 &&
5505 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5506 return -EINVAL;
5507 }
5508
5509 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5510 u8 tmp;
5511
5512 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5513 return -EINVAL;
5514 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5515 if (tmp > 1)
5516 return -EINVAL;
5517 params.p2p_opp_ps = tmp;
5518 if (params.p2p_opp_ps &&
5519 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5520 return -EINVAL;
5521 }
5522
4c476991
JB		 5523 if (!rdev->ops->change_bss)
5524 return -EOPNOTSUPP;
9f1ba906 5525
074ac8df 5526 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5527 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5528 return -EOPNOTSUPP;
3b85875a 5529
c56589ed
SW		 5530 wdev_lock(wdev);
5531 err = rdev_change_bss(rdev, dev, &params);
5532 wdev_unlock(wdev);
5533
5534 return err;
9f1ba906
JM		 5535}
5536
b2e1b302
LR		 5537static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5538{
b2e1b302 5539 char *data = NULL;
05050753 5540 bool is_indoor;
57b5ce07 5541 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5542 u32 owner_nlportid;
5543
80778f18
LR		 5544 /*
5545 * You should only get this when cfg80211 hasn't yet initialized
5546 * completely when built-in to the kernel right between the time
5547 * window between nl80211_init() and regulatory_init(), if that is
5548 * even possible.
5549 */
458f4f9e 5550 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5551 return -EINPROGRESS;
80778f18 5552
57b5ce07
LR		 5553 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5554 user_reg_hint_type =
5555 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5556 else
5557 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5558
5559 switch (user_reg_hint_type) {
5560 case NL80211_USER_REG_HINT_USER:
5561 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5562 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5563 return -EINVAL;
5564
5565 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5566 return regulatory_hint_user(data, user_reg_hint_type);
5567 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5568 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5569 owner_nlportid = info->snd_portid;
5570 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5571 } else {
5572 owner_nlportid = 0;
5573 is_indoor = true;
5574 }
5575
5576 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5577 default:
5578 return -EINVAL;
5579 }
b2e1b302
LR		 5580}
5581
24bdd9f4 5582static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5583 struct genl_info *info)
93da9cc1 5584{
4c476991 5585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5586 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5587 struct wireless_dev *wdev = dev->ieee80211_ptr;
5588 struct mesh_config cur_params;
5589 int err = 0;
93da9cc1 5590 void *hdr;
5591 struct nlattr *pinfoattr;
5592 struct sk_buff *msg;
5593
29cbe68c
JB		 5594 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5595 return -EOPNOTSUPP;
5596
24bdd9f4 5597 if (!rdev->ops->get_mesh_config)
4c476991 5598 return -EOPNOTSUPP;
f3f92586 5599
29cbe68c
JB		 5600 wdev_lock(wdev);
5601 /* If not connected, get default parameters */
5602 if (!wdev->mesh_id_len)
5603 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5604 else
e35e4d28 5605 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5606 wdev_unlock(wdev);
5607
93da9cc1 5608 if (err)
4c476991 5609 return err;
93da9cc1 5610
5611 /* Draw up a netlink message to send back */
fd2120ca 5612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5613 if (!msg)
5614 return -ENOMEM;
15e47304 5615 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5616 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5617 if (!hdr)
efe1cf0c 5618 goto out;
24bdd9f4 5619 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5620 if (!pinfoattr)
5621 goto nla_put_failure;
9360ffd1
DM		 5622 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5623 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5624 cur_params.dot11MeshRetryTimeout) ||
5625 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5626 cur_params.dot11MeshConfirmTimeout) ||
5627 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5628 cur_params.dot11MeshHoldingTimeout) ||
5629 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5630 cur_params.dot11MeshMaxPeerLinks) ||
5631 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5632 cur_params.dot11MeshMaxRetries) ||
5633 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5634 cur_params.dot11MeshTTL) ||
5635 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5636 cur_params.element_ttl) ||
5637 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5638 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5639 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5640 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5641 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5642 cur_params.dot11MeshHWMPmaxPREQretries) ||
5643 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5644 cur_params.path_refresh_time) ||
5645 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5646 cur_params.min_discovery_timeout) ||
5647 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5648 cur_params.dot11MeshHWMPactivePathTimeout) ||
5649 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5650 cur_params.dot11MeshHWMPpreqMinInterval) ||
5651 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5652 cur_params.dot11MeshHWMPperrMinInterval) ||
5653 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5654 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5655 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5656 cur_params.dot11MeshHWMPRootMode) ||
5657 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5658 cur_params.dot11MeshHWMPRannInterval) ||
5659 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5660 cur_params.dot11MeshGateAnnouncementProtocol) ||
5661 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5662 cur_params.dot11MeshForwarding) ||
5663 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5664 cur_params.rssi_threshold) ||
5665 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5666 cur_params.ht_opmode) ||
5667 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5668 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5669 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5670 cur_params.dot11MeshHWMProotInterval) ||
5671 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5672 cur_params.dot11MeshHWMPconfirmationInterval) ||
5673 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5674 cur_params.power_mode) ||
5675 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5676 cur_params.dot11MeshAwakeWindowDuration) ||
5677 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5678 cur_params.plink_timeout))
9360ffd1 5679 goto nla_put_failure;
93da9cc1 5680 nla_nest_end(msg, pinfoattr);
5681 genlmsg_end(msg, hdr);
4c476991 5682 return genlmsg_reply(msg, info);
93da9cc1 5683
3b85875a 5684 nla_put_failure:
93da9cc1 5685 genlmsg_cancel(msg, hdr);
efe1cf0c 5686 out:
d080e275 5687 nlmsg_free(msg);
4c476991 5688 return -ENOBUFS;
93da9cc1 5689}
5690
b54452b0 5691static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5692 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5693 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5694 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5695 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5696 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5697 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5698 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5699 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5700 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5701 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5702 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5703 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5704 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5705 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5706 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5707 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5708 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5709 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5710 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5711 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5712 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5713 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5714 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5715 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5716 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5717 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5718 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5719 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5720};
5721
c80d545d
JC		 5722static const struct nla_policy
5723 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5724 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5725 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5726 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5727 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5728 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5729 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5730 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5731 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5732 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5733};
5734
f151d9db
AB		 5735static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5736{
5737 u8 val = nla_get_u8(nla);
5738 if (val < min || val > max)
5739 return -EINVAL;
5740 *out = val;
5741 return 0;
5742}
5743
5744static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5745{
5746 u8 val = nla_get_u8(nla);
5747 if (val < min || val > max)
5748 return -EINVAL;
5749 *out = val;
5750 return 0;
5751}
5752
5753static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5754{
5755 u16 val = nla_get_u16(nla);
5756 if (val < min || val > max)
5757 return -EINVAL;
5758 *out = val;
5759 return 0;
5760}
5761
5762static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5763{
5764 u32 val = nla_get_u32(nla);
5765 if (val < min || val > max)
5766 return -EINVAL;
5767 *out = val;
5768 return 0;
5769}
5770
5771static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5772{
5773 s32 val = nla_get_s32(nla);
5774 if (val < min || val > max)
5775 return -EINVAL;
5776 *out = val;
5777 return 0;
5778}
5779
ff9a71af
JB		 5780static int nl80211_check_power_mode(const struct nlattr *nla,
5781 enum nl80211_mesh_power_mode min,
5782 enum nl80211_mesh_power_mode max,
5783 enum nl80211_mesh_power_mode *out)
5784{
5785 u32 val = nla_get_u32(nla);
5786 if (val < min || val > max)
5787 return -EINVAL;
5788 *out = val;
5789 return 0;
5790}
5791
24bdd9f4 5792static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5793 struct mesh_config *cfg,
5794 u32 *mask_out)
93da9cc1 5795{
93da9cc1 5796 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5797 u32 mask = 0;
9757235f 5798 u16 ht_opmode;
93da9cc1 5799
ea54fba2
MP		 5800#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5801do { \
5802 if (tb[attr]) { \
f151d9db 5803 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5804 return -EINVAL; \
ea54fba2
MP		 5805 mask |= (1 << (attr - 1)); \
5806 } \
5807} while (0)
bd90fdcc 5808
24bdd9f4 5809 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5810 return -EINVAL;
5811 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5812 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5813 nl80211_meshconf_params_policy))
93da9cc1 5814 return -EINVAL;
5815
93da9cc1 5816 /* This makes sure that there aren't more than 32 mesh config
5817 * parameters (otherwise our bitfield scheme would not work.) */
5818 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5819
5820 /* Fill in the params struct */
ea54fba2 5821 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5822 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5823 nl80211_check_u16);
ea54fba2 5824 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5825 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5826 nl80211_check_u16);
ea54fba2 5827 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5828 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5829 nl80211_check_u16);
ea54fba2 5830 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5831 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5832 nl80211_check_u16);
ea54fba2 5833 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5834 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5835 nl80211_check_u8);
ea54fba2 5836 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5837 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5838 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5839 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5840 nl80211_check_u8);
ea54fba2 5841 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5842 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5843 nl80211_check_bool);
ea54fba2
MP		 5844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5845 1, 255, mask,
a4f606ea 5846 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5847 nl80211_check_u32);
ea54fba2 5848 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5849 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5850 nl80211_check_u8);
ea54fba2 5851 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5852 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5853 nl80211_check_u32);
ea54fba2 5854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5855 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5856 nl80211_check_u16);
ea54fba2
MP		 5857 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5858 1, 65535, mask,
a4f606ea 5859 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5860 nl80211_check_u32);
93da9cc1 5861 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5862 1, 65535, mask,
5863 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5864 nl80211_check_u16);
dca7e943 5865 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5866 1, 65535, mask,
5867 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5868 nl80211_check_u16);
93da9cc1 5869 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5870 dot11MeshHWMPnetDiameterTraversalTime,
5871 1, 65535, mask,
a4f606ea 5872 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5873 nl80211_check_u16);
ea54fba2
MP		 5874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5875 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5876 nl80211_check_u8);
ea54fba2
MP		 5877 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5878 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5879 nl80211_check_u16);
63c5723b 5880 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5881 dot11MeshGateAnnouncementProtocol, 0, 1,
5882 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5883 nl80211_check_bool);
ea54fba2 5884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5885 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5886 nl80211_check_bool);
83374fe9 5887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5888 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5889 nl80211_check_s32);
9757235f
MH		 5890 /*
5891 * Check HT operation mode based on
5892 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5893 */
5894 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5895 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5896
5897 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5898 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5899 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5900 return -EINVAL;
5901
5902 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5903 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5904 return -EINVAL;
5905
5906 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5907 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5908 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5909 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5910 return -EINVAL;
5911 break;
5912 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5913 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5914 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5915 return -EINVAL;
5916 break;
5917 }
5918 cfg->ht_opmode = ht_opmode;
fd551bac 5919 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
9757235f 5920 }
ac1073a6 5921 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5922 1, 65535, mask,
ac1073a6 5923 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5924 nl80211_check_u32);
ea54fba2 5925 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5926 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5927 nl80211_check_u16);
728b19e5 5928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5929 dot11MeshHWMPconfirmationInterval,
5930 1, 65535, mask,
728b19e5 5931 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5932 nl80211_check_u16);
3b1c5a53
MP		 5933 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5934 NL80211_MESH_POWER_ACTIVE,
5935 NL80211_MESH_POWER_MAX,
5936 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5937 nl80211_check_power_mode);
3b1c5a53
MP		 5938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5939 0, 65535, mask,
f151d9db 5940 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5942 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5943 nl80211_check_u32);
bd90fdcc
JB		 5944 if (mask_out)
5945 *mask_out = mask;
c80d545d 5946
bd90fdcc
JB		 5947 return 0;
5948
5949#undef FILL_IN_MESH_PARAM_IF_SET
5950}
5951
c80d545d
JC		 5952static int nl80211_parse_mesh_setup(struct genl_info *info,
5953 struct mesh_setup *setup)
5954{
bb2798d4 5955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5956 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5957
5958 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5959 return -EINVAL;
5960 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5961 info->attrs[NL80211_ATTR_MESH_SETUP],
5962 nl80211_mesh_setup_params_policy))
5963 return -EINVAL;
5964
d299a1f2
JC		 5965 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5966 setup->sync_method =
5967 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5968 IEEE80211_SYNC_METHOD_VENDOR :
5969 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5970
c80d545d
JC		 5971 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5972 setup->path_sel_proto =
5973 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5974 IEEE80211_PATH_PROTOCOL_VENDOR :
5975 IEEE80211_PATH_PROTOCOL_HWMP;
5976
5977 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5978 setup->path_metric =
5979 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5980 IEEE80211_PATH_METRIC_VENDOR :
5981 IEEE80211_PATH_METRIC_AIRTIME;
5982
581a8b0f 5983 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5984 struct nlattr *ieattr =
581a8b0f 5985 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5986 if (!is_valid_ie_attr(ieattr))
5987 return -EINVAL;
581a8b0f
JC		 5988 setup->ie = nla_data(ieattr);
5989 setup->ie_len = nla_len(ieattr);
c80d545d 5990 }
bb2798d4
TP		 5991 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5992 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5993 return -EINVAL;
5994 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5995 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5996 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5997 if (setup->is_secure)
5998 setup->user_mpm = true;
c80d545d 5999
6e16d90b
CT		 6000 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6001 if (!setup->user_mpm)
6002 return -EINVAL;
6003 setup->auth_id =
6004 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6005 }
6006
c80d545d
JC		 6007 return 0;
6008}
6009
24bdd9f4 6010static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 6011 struct genl_info *info)
bd90fdcc
JB		 6012{
6013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6014 struct net_device *dev = info->user_ptr[1];
29cbe68c 6015 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 6016 struct mesh_config cfg;
6017 u32 mask;
6018 int err;
6019
29cbe68c
JB		 6020 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6021 return -EOPNOTSUPP;
6022
24bdd9f4 6023 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 6024 return -EOPNOTSUPP;
6025
24bdd9f4 6026 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 6027 if (err)
6028 return err;
6029
29cbe68c
JB		 6030 wdev_lock(wdev);
6031 if (!wdev->mesh_id_len)
6032 err = -ENOLINK;
6033
6034 if (!err)
e35e4d28 6035 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 6036
6037 wdev_unlock(wdev);
6038
6039 return err;
93da9cc1 6040}
6041
ad30ca2c
AN		 6042static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6043 struct sk_buff *msg)
f130347c 6044{
f130347c
LR		 6045 struct nlattr *nl_reg_rules;
6046 unsigned int i;
f130347c 6047
458f4f9e
JB		 6048 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6049 (regdom->dfs_region &&
6050 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6051 goto nla_put_failure;
458f4f9e 6052
f130347c
LR		 6053 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6054 if (!nl_reg_rules)
ad30ca2c 6055 goto nla_put_failure;
f130347c 6056
458f4f9e 6057 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6058 struct nlattr *nl_reg_rule;
6059 const struct ieee80211_reg_rule *reg_rule;
6060 const struct ieee80211_freq_range *freq_range;
6061 const struct ieee80211_power_rule *power_rule;
97524820 6062 unsigned int max_bandwidth_khz;
f130347c 6063
458f4f9e 6064 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6065 freq_range = &reg_rule->freq_range;
6066 power_rule = &reg_rule->power_rule;
6067
6068 nl_reg_rule = nla_nest_start(msg, i);
6069 if (!nl_reg_rule)
ad30ca2c 6070 goto nla_put_failure;
f130347c 6071
97524820
JD		 6072 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6073 if (!max_bandwidth_khz)
6074 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6075 reg_rule);
6076
9360ffd1
DM		 6077 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6078 reg_rule->flags) ||
6079 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6080 freq_range->start_freq_khz) ||
6081 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6082 freq_range->end_freq_khz) ||
6083 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6084 max_bandwidth_khz) ||
9360ffd1
DM		 6085 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6086 power_rule->max_antenna_gain) ||
6087 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6088 power_rule->max_eirp) ||
6089 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6090 reg_rule->dfs_cac_ms))
ad30ca2c 6091 goto nla_put_failure;
f130347c
LR		 6092
6093 nla_nest_end(msg, nl_reg_rule);
6094 }
6095
6096 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6097 return 0;
6098
6099nla_put_failure:
6100 return -EMSGSIZE;
6101}
6102
6103static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6104{
6105 const struct ieee80211_regdomain *regdom = NULL;
6106 struct cfg80211_registered_device *rdev;
6107 struct wiphy *wiphy = NULL;
6108 struct sk_buff *msg;
6109 void *hdr;
6110
6111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6112 if (!msg)
6113 return -ENOBUFS;
6114
6115 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6116 NL80211_CMD_GET_REG);
6117 if (!hdr)
6118 goto put_failure;
6119
6120 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6121 bool self_managed;
6122
ad30ca2c
AN		 6123 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6124 if (IS_ERR(rdev)) {
6125 nlmsg_free(msg);
6126 return PTR_ERR(rdev);
6127 }
6128
6129 wiphy = &rdev->wiphy;
1bdd716c
AN		 6130 self_managed = wiphy->regulatory_flags &
6131 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6132 regdom = get_wiphy_regdom(wiphy);
6133
1bdd716c
AN		 6134 /* a self-managed-reg device must have a private regdom */
6135 if (WARN_ON(!regdom && self_managed)) {
6136 nlmsg_free(msg);
6137 return -EINVAL;
6138 }
6139
ad30ca2c
AN		 6140 if (regdom &&
6141 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6142 goto nla_put_failure;
6143 }
6144
6145 if (!wiphy && reg_last_request_cell_base() &&
6146 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6147 NL80211_USER_REG_HINT_CELL_BASE))
6148 goto nla_put_failure;
6149
6150 rcu_read_lock();
6151
6152 if (!regdom)
6153 regdom = rcu_dereference(cfg80211_regdomain);
6154
6155 if (nl80211_put_regdom(regdom, msg))
6156 goto nla_put_failure_rcu;
6157
6158 rcu_read_unlock();
f130347c
LR		 6159
6160 genlmsg_end(msg, hdr);
5fe231e8 6161 return genlmsg_reply(msg, info);
f130347c 6162
458f4f9e
JB		 6163nla_put_failure_rcu:
6164 rcu_read_unlock();
f130347c
LR		 6165nla_put_failure:
6166 genlmsg_cancel(msg, hdr);
efe1cf0c 6167put_failure:
d080e275 6168 nlmsg_free(msg);
5fe231e8 6169 return -EMSGSIZE;
f130347c
LR		 6170}
6171
ad30ca2c
AN		 6172static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6173 u32 seq, int flags, struct wiphy *wiphy,
6174 const struct ieee80211_regdomain *regdom)
6175{
6176 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6177 NL80211_CMD_GET_REG);
6178
6179 if (!hdr)
6180 return -1;
6181
6182 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6183
6184 if (nl80211_put_regdom(regdom, msg))
6185 goto nla_put_failure;
6186
6187 if (!wiphy && reg_last_request_cell_base() &&
6188 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6189 NL80211_USER_REG_HINT_CELL_BASE))
6190 goto nla_put_failure;
6191
6192 if (wiphy &&
6193 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6194 goto nla_put_failure;
6195
1bdd716c
AN		 6196 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6197 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6198 goto nla_put_failure;
6199
053c095a
JB		 6200 genlmsg_end(msg, hdr);
6201 return 0;
ad30ca2c
AN		 6202
6203nla_put_failure:
6204 genlmsg_cancel(msg, hdr);
6205 return -EMSGSIZE;
6206}
6207
6208static int nl80211_get_reg_dump(struct sk_buff *skb,
6209 struct netlink_callback *cb)
6210{
6211 const struct ieee80211_regdomain *regdom = NULL;
6212 struct cfg80211_registered_device *rdev;
6213 int err, reg_idx, start = cb->args[2];
6214
6215 rtnl_lock();
6216
6217 if (cfg80211_regdomain && start == 0) {
6218 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6219 NLM_F_MULTI, NULL,
6220 rtnl_dereference(cfg80211_regdomain));
6221 if (err < 0)
6222 goto out_err;
6223 }
6224
6225 /* the global regdom is idx 0 */
6226 reg_idx = 1;
6227 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6228 regdom = get_wiphy_regdom(&rdev->wiphy);
6229 if (!regdom)
6230 continue;
6231
6232 if (++reg_idx <= start)
6233 continue;
6234
6235 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6236 NLM_F_MULTI, &rdev->wiphy, regdom);
6237 if (err < 0) {
6238 reg_idx--;
6239 break;
6240 }
6241 }
6242
6243 cb->args[2] = reg_idx;
6244 err = skb->len;
6245out_err:
6246 rtnl_unlock();
6247 return err;
6248}
6249
b6863036
JB		 6250#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6251static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6252 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6253 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6254 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6255 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6256 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6257 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6258 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6259};
6260
6261static int parse_reg_rule(struct nlattr *tb[],
6262 struct ieee80211_reg_rule *reg_rule)
6263{
6264 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6265 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6266
6267 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6268 return -EINVAL;
6269 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6270 return -EINVAL;
6271 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6272 return -EINVAL;
6273 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6274 return -EINVAL;
6275 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6276 return -EINVAL;
6277
6278 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6279
6280 freq_range->start_freq_khz =
6281 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6282 freq_range->end_freq_khz =
6283 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6284 freq_range->max_bandwidth_khz =
6285 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6286
6287 power_rule->max_eirp =
6288 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6289
6290 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6291 power_rule->max_antenna_gain =
6292 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6293
6294 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6295 reg_rule->dfs_cac_ms =
6296 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6297
6298 return 0;
6299}
6300
b2e1b302
LR		 6301static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6302{
6303 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6304 struct nlattr *nl_reg_rule;
ea372c54
JB		 6305 char *alpha2;
6306 int rem_reg_rules, r;
b2e1b302 6307 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6308 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6309 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6310
6311 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6312 return -EINVAL;
6313
6314 if (!info->attrs[NL80211_ATTR_REG_RULES])
6315 return -EINVAL;
6316
6317 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6318
8b60b078
LR		 6319 if (info->attrs[NL80211_ATTR_DFS_REGION])
6320 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6321
b2e1b302 6322 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6323 rem_reg_rules) {
b2e1b302
LR		 6324 num_rules++;
6325 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6326 return -EINVAL;
b2e1b302
LR		 6327 }
6328
e438768f
LR		 6329 if (!reg_is_valid_request(alpha2))
6330 return -EINVAL;
6331
b2e1b302 6332 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6333 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6334
6335 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6336 if (!rd)
6337 return -ENOMEM;
b2e1b302
LR		 6338
6339 rd->n_reg_rules = num_rules;
6340 rd->alpha2[0] = alpha2[0];
6341 rd->alpha2[1] = alpha2[1];
6342
8b60b078
LR		 6343 /*
6344 * Disable DFS master mode if the DFS region was
6345 * not supported or known on this kernel.
6346 */
6347 if (reg_supported_dfs_region(dfs_region))
6348 rd->dfs_region = dfs_region;
6349
b2e1b302 6350 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6351 rem_reg_rules) {
bfe2c7b1
JB		 6352 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6353 nl_reg_rule, reg_rule_policy);
ae811e21
JB		 6354 if (r)
6355 goto bad_reg;
b2e1b302
LR		 6356 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6357 if (r)
6358 goto bad_reg;
6359
6360 rule_idx++;
6361
d0e18f83
LR		 6362 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6363 r = -EINVAL;
b2e1b302 6364 goto bad_reg;
d0e18f83 6365 }
b2e1b302
LR		 6366 }
6367
06627990
JB		 6368 /* set_regdom takes ownership of rd */
6369 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6370 bad_reg:
b2e1b302 6371 kfree(rd);
d0e18f83 6372 return r;
b2e1b302 6373}
b6863036 6374#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6375
83f5e2cf
JB		 6376static int validate_scan_freqs(struct nlattr *freqs)
6377{
6378 struct nlattr *attr1, *attr2;
6379 int n_channels = 0, tmp1, tmp2;
6380
6381 nla_for_each_nested(attr1, freqs, tmp1) {
6382 n_channels++;
6383 /*
6384 * Some hardware has a limited channel list for
6385 * scanning, and it is pretty much nonsensical
6386 * to scan for a channel twice, so disallow that
6387 * and don't require drivers to check that the
6388 * channel list they get isn't longer than what
6389 * they can scan, as long as they can scan all
6390 * the channels they registered at once.
6391 */
6392 nla_for_each_nested(attr2, freqs, tmp2)
6393 if (attr1 != attr2 &&
6394 nla_get_u32(attr1) == nla_get_u32(attr2))
6395 return 0;
6396 }
6397
6398 return n_channels;
6399}
6400
57fbcce3 6401static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6402{
57fbcce3 6403 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6404}
6405
6406static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6407 struct cfg80211_bss_selection *bss_select)
6408{
6409 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6410 struct nlattr *nest;
6411 int err;
6412 bool found = false;
6413 int i;
6414
6415 /* only process one nested attribute */
6416 nest = nla_data(nla);
6417 if (!nla_ok(nest, nla_len(nest)))
6418 return -EINVAL;
6419
bfe2c7b1
JB		 6420 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6421 nl80211_bss_select_policy);
38de03d2
AS		 6422 if (err)
6423 return err;
6424
6425 /* only one attribute may be given */
6426 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6427 if (attr[i]) {
6428 if (found)
6429 return -EINVAL;
6430 found = true;
6431 }
6432 }
6433
6434 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6435
6436 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6437 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6438
6439 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6440 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6441 bss_select->param.band_pref =
6442 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6443 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6444 return -EINVAL;
6445 }
6446
6447 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6448 struct nl80211_bss_select_rssi_adjust *adj_param;
6449
6450 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6451 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6452 bss_select->param.adjust.band = adj_param->band;
6453 bss_select->param.adjust.delta = adj_param->delta;
6454 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6455 return -EINVAL;
6456 }
6457
6458 /* user-space did not provide behaviour attribute */
6459 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6460 return -EINVAL;
6461
6462 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6463 return -EINVAL;
6464
6465 return 0;
6466}
6467
ad2b26ab
JB		 6468static int nl80211_parse_random_mac(struct nlattr **attrs,
6469 u8 *mac_addr, u8 *mac_addr_mask)
6470{
6471 int i;
6472
6473 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6474 eth_zero_addr(mac_addr);
6475 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6476 mac_addr[0] = 0x2;
6477 mac_addr_mask[0] = 0x3;
6478
6479 return 0;
6480 }
6481
6482 /* need both or none */
6483 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6484 return -EINVAL;
6485
6486 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6487 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6488
6489 /* don't allow or configure an mcast address */
6490 if (!is_multicast_ether_addr(mac_addr_mask) ||
6491 is_multicast_ether_addr(mac_addr))
6492 return -EINVAL;
6493
6494 /*
6495 * allow users to pass a MAC address that has bits set outside
6496 * of the mask, but don't bother drivers with having to deal
6497 * with such bits
6498 */
6499 for (i = 0; i < ETH_ALEN; i++)
6500 mac_addr[i] &= mac_addr_mask[i];
6501
6502 return 0;
6503}
6504
2a519311
JB		 6505static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6506{
4c476991 6507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6508 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6509 struct cfg80211_scan_request *request;
2a519311
JB		 6510 struct nlattr *attr;
6511 struct wiphy *wiphy;
83f5e2cf 6512 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6513 size_t ie_len;
2a519311 6514
f4a11bb0
JB		 6515 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6516 return -EINVAL;
6517
79c97e97 6518 wiphy = &rdev->wiphy;
2a519311 6519
cb3b7d87
AB		 6520 if (wdev->iftype == NL80211_IFTYPE_NAN)
6521 return -EOPNOTSUPP;
6522
4c476991
JB		 6523 if (!rdev->ops->scan)
6524 return -EOPNOTSUPP;
2a519311 6525
f9d15d16 6526 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6527 err = -EBUSY;
6528 goto unlock;
6529 }
2a519311
JB		 6530
6531 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6532 n_channels = validate_scan_freqs(
6533 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6534 if (!n_channels) {
6535 err = -EINVAL;
6536 goto unlock;
6537 }
2a519311 6538 } else {
bdfbec2d 6539 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6540 }
6541
6542 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6543 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6544 n_ssids++;
6545
f9f47529
JB		 6546 if (n_ssids > wiphy->max_scan_ssids) {
6547 err = -EINVAL;
6548 goto unlock;
6549 }
2a519311 6550
70692ad2
JM		 6551 if (info->attrs[NL80211_ATTR_IE])
6552 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6553 else
6554 ie_len = 0;
6555
f9f47529
JB		 6556 if (ie_len > wiphy->max_scan_ie_len) {
6557 err = -EINVAL;
6558 goto unlock;
6559 }
18a83659 6560
2a519311 6561 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6562 + sizeof(*request->ssids) * n_ssids
6563 + sizeof(*request->channels) * n_channels
70692ad2 6564 + ie_len, GFP_KERNEL);
f9f47529
JB		 6565 if (!request) {
6566 err = -ENOMEM;
6567 goto unlock;
6568 }
2a519311 6569
2a519311 6570 if (n_ssids)
5ba63533 6571 request->ssids = (void *)&request->channels[n_channels];
2a519311 6572 request->n_ssids = n_ssids;
70692ad2 6573 if (ie_len) {
13874e4b 6574 if (n_ssids)
70692ad2
JM		 6575 request->ie = (void *)(request->ssids + n_ssids);
6576 else
6577 request->ie = (void *)(request->channels + n_channels);
6578 }
2a519311 6579
584991dc 6580 i = 0;
2a519311
JB		 6581 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6582 /* user specified, bail out if channel not found */
2a519311 6583 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6584 struct ieee80211_channel *chan;
6585
6586 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6587
6588 if (!chan) {
2a519311
JB		 6589 err = -EINVAL;
6590 goto out_free;
6591 }
584991dc
JB		 6592
6593 /* ignore disabled channels */
6594 if (chan->flags & IEEE80211_CHAN_DISABLED)
6595 continue;
6596
6597 request->channels[i] = chan;
2a519311
JB		 6598 i++;
6599 }
6600 } else {
57fbcce3 6601 enum nl80211_band band;
34850ab2 6602
2a519311 6603 /* all channels */
57fbcce3 6604 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6605 int j;
7a087e74 6606
2a519311
JB		 6607 if (!wiphy->bands[band])
6608 continue;
6609 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6610 struct ieee80211_channel *chan;
6611
6612 chan = &wiphy->bands[band]->channels[j];
6613
6614 if (chan->flags & IEEE80211_CHAN_DISABLED)
6615 continue;
6616
6617 request->channels[i] = chan;
2a519311
JB		 6618 i++;
6619 }
6620 }
6621 }
6622
584991dc
JB		 6623 if (!i) {
6624 err = -EINVAL;
6625 goto out_free;
6626 }
6627
6628 request->n_channels = i;
6629
2a519311 6630 i = 0;
13874e4b 6631 if (n_ssids) {
2a519311 6632 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6633 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6634 err = -EINVAL;
6635 goto out_free;
6636 }
57a27e1d 6637 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6638 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6639 i++;
6640 }
6641 }
6642
70692ad2
JM		 6643 if (info->attrs[NL80211_ATTR_IE]) {
6644 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6645 memcpy((void *)request->ie,
6646 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6647 request->ie_len);
6648 }
6649
57fbcce3 6650 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6651 if (wiphy->bands[i])
6652 request->rates[i] =
6653 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6654
6655 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6656 nla_for_each_nested(attr,
6657 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6658 tmp) {
57fbcce3 6659 enum nl80211_band band = nla_type(attr);
34850ab2 6660
57fbcce3 6661 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6662 err = -EINVAL;
6663 goto out_free;
6664 }
1b09cd82
FF		 6665
6666 if (!wiphy->bands[band])
6667 continue;
6668
34850ab2
JB		 6669 err = ieee80211_get_ratemask(wiphy->bands[band],
6670 nla_data(attr),
6671 nla_len(attr),
6672 &request->rates[band]);
6673 if (err)
6674 goto out_free;
6675 }
6676 }
6677
1d76250b
AS		 6678 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6679 if (!wiphy_ext_feature_isset(wiphy,
6680 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6681 err = -EOPNOTSUPP;
6682 goto out_free;
6683 }
6684
6685 request->duration =
6686 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6687 request->duration_mandatory =
6688 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6689 }
6690
46856bbf 6691 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6692 request->flags = nla_get_u32(
6693 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6694 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6695 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6696 err = -EOPNOTSUPP;
6697 goto out_free;
6698 }
ad2b26ab
JB		 6699
6700 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6701 if (!(wiphy->features &
6702 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6703 err = -EOPNOTSUPP;
6704 goto out_free;
6705 }
6706
6707 if (wdev->current_bss) {
6708 err = -EOPNOTSUPP;
6709 goto out_free;
6710 }
6711
6712 err = nl80211_parse_random_mac(info->attrs,
6713 request->mac_addr,
6714 request->mac_addr_mask);
6715 if (err)
6716 goto out_free;
6717 }
46856bbf 6718 }
ed473771 6719
e9f935e3
RM		 6720 request->no_cck =
6721 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6722
2fa436b3
VK		 6723 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6724 * BSSID to scan for. This was problematic because that same attribute
6725 * was already used for another purpose (local random MAC address). The
6726 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6727 * compatibility with older userspace components, also use the
6728 * NL80211_ATTR_MAC value here if it can be determined to be used for
6729 * the specific BSSID use case instead of the random MAC address
6730 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6731 */
6732 if (info->attrs[NL80211_ATTR_BSSID])
6733 memcpy(request->bssid,
6734 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6735 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6736 info->attrs[NL80211_ATTR_MAC])
818965d3
JM		 6737 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6738 ETH_ALEN);
6739 else
6740 eth_broadcast_addr(request->bssid);
6741
fd014284 6742 request->wdev = wdev;
79c97e97 6743 request->wiphy = &rdev->wiphy;
15d6030b 6744 request->scan_start = jiffies;
2a519311 6745
79c97e97 6746 rdev->scan_req = request;
e35e4d28 6747 err = rdev_scan(rdev, request);
2a519311 6748
463d0183 6749 if (!err) {
fd014284
JB		 6750 nl80211_send_scan_start(rdev, wdev);
6751 if (wdev->netdev)
6752 dev_hold(wdev->netdev);
4c476991 6753 } else {
2a519311 6754 out_free:
79c97e97 6755 rdev->scan_req = NULL;
2a519311
JB		 6756 kfree(request);
6757 }
3b85875a 6758
f9f47529 6759 unlock:
2a519311
JB		 6760 return err;
6761}
6762
91d3ab46
VK		 6763static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6764{
6765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6766 struct wireless_dev *wdev = info->user_ptr[1];
6767
6768 if (!rdev->ops->abort_scan)
6769 return -EOPNOTSUPP;
6770
6771 if (rdev->scan_msg)
6772 return 0;
6773
6774 if (!rdev->scan_req)
6775 return -ENOENT;
6776
6777 rdev_abort_scan(rdev, wdev);
6778 return 0;
6779}
6780
3b06d277
AS		 6781static int
6782nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6783 struct cfg80211_sched_scan_request *request,
6784 struct nlattr **attrs)
6785{
6786 int tmp, err, i = 0;
6787 struct nlattr *attr;
6788
6789 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6790 u32 interval;
6791
6792 /*
6793 * If scan plans are not specified,
6794 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6795 * case one scan plan will be set with the specified scan
6796 * interval and infinite number of iterations.
6797 */
6798 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6799 return -EINVAL;
6800
6801 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6802 if (!interval)
6803 return -EINVAL;
6804
6805 request->scan_plans[0].interval =
6806 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6807 if (!request->scan_plans[0].interval)
6808 return -EINVAL;
6809
6810 if (request->scan_plans[0].interval >
6811 wiphy->max_sched_scan_plan_interval)
6812 request->scan_plans[0].interval =
6813 wiphy->max_sched_scan_plan_interval;
6814
6815 return 0;
6816 }
6817
6818 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6819 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6820
6821 if (WARN_ON(i >= n_plans))
6822 return -EINVAL;
6823
bfe2c7b1
JB		 6824 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6825 attr, nl80211_plan_policy);
3b06d277
AS		 6826 if (err)
6827 return err;
6828
6829 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6830 return -EINVAL;
6831
6832 request->scan_plans[i].interval =
6833 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6834 if (!request->scan_plans[i].interval ||
6835 request->scan_plans[i].interval >
6836 wiphy->max_sched_scan_plan_interval)
6837 return -EINVAL;
6838
6839 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6840 request->scan_plans[i].iterations =
6841 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6842 if (!request->scan_plans[i].iterations ||
6843 (request->scan_plans[i].iterations >
6844 wiphy->max_sched_scan_plan_iterations))
6845 return -EINVAL;
6846 } else if (i < n_plans - 1) {
6847 /*
6848 * All scan plans but the last one must specify
6849 * a finite number of iterations
6850 */
6851 return -EINVAL;
6852 }
6853
6854 i++;
6855 }
6856
6857 /*
6858 * The last scan plan must not specify the number of
6859 * iterations, it is supposed to run infinitely
6860 */
6861 if (request->scan_plans[n_plans - 1].iterations)
6862 return -EINVAL;
6863
6864 return 0;
6865}
6866
256da02d 6867static struct cfg80211_sched_scan_request *
ad2b26ab 6868nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6869 struct nlattr **attrs)
807f8a8c
LC		 6870{
6871 struct cfg80211_sched_scan_request *request;
807f8a8c 6872 struct nlattr *attr;
3b06d277 6873 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6874 enum nl80211_band band;
807f8a8c 6875 size_t ie_len;
a1f1c21c 6876 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6877 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6878
256da02d
LC		 6879 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6880 return ERR_PTR(-EINVAL);
807f8a8c 6881
256da02d 6882 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6883 n_channels = validate_scan_freqs(
256da02d 6884 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6885 if (!n_channels)
256da02d 6886 return ERR_PTR(-EINVAL);
807f8a8c 6887 } else {
bdfbec2d 6888 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6889 }
6890
256da02d
LC		 6891 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6892 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6893 tmp)
6894 n_ssids++;
6895
93b6aa69 6896 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6897 return ERR_PTR(-EINVAL);
807f8a8c 6898
ea73cbce
JB		 6899 /*
6900 * First, count the number of 'real' matchsets. Due to an issue with
6901 * the old implementation, matchsets containing only the RSSI attribute
6902 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6903 * RSSI for all matchsets, rather than their own matchset for reporting
6904 * all APs with a strong RSSI. This is needed to be compatible with
6905 * older userspace that treated a matchset with only the RSSI as the
6906 * global RSSI for all other matchsets - if there are other matchsets.
6907 */
256da02d 6908 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6909 nla_for_each_nested(attr,
256da02d 6910 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6911 tmp) {
6912 struct nlattr *rssi;
6913
bfe2c7b1
JB		 6914 err = nla_parse_nested(tb,
6915 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6916 attr, nl80211_match_policy);
ea73cbce 6917 if (err)
256da02d 6918 return ERR_PTR(err);
ea73cbce
JB		 6919 /* add other standalone attributes here */
6920 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6921 n_match_sets++;
6922 continue;
6923 }
6924 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6925 if (rssi)
6926 default_match_rssi = nla_get_s32(rssi);
6927 }
6928 }
6929
6930 /* However, if there's no other matchset, add the RSSI one */
6931 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6932 n_match_sets = 1;
a1f1c21c
LC		 6933
6934 if (n_match_sets > wiphy->max_match_sets)
256da02d 6935 return ERR_PTR(-EINVAL);
a1f1c21c 6936
256da02d
LC		 6937 if (attrs[NL80211_ATTR_IE])
6938 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6939 else
6940 ie_len = 0;
6941
5a865bad 6942 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6943 return ERR_PTR(-EINVAL);
c10841ca 6944
3b06d277
AS		 6945 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6946 /*
6947 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6948 * each scan plan already specifies its own interval
6949 */
6950 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6951 return ERR_PTR(-EINVAL);
6952
6953 nla_for_each_nested(attr,
6954 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6955 n_plans++;
6956 } else {
6957 /*
6958 * The scan interval attribute is kept for backward
6959 * compatibility. If no scan plans are specified and sched scan
6960 * interval is specified, one scan plan will be set with this
6961 * scan interval and infinite number of iterations.
6962 */
6963 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6964 return ERR_PTR(-EINVAL);
6965
6966 n_plans = 1;
6967 }
6968
6969 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6970 return ERR_PTR(-EINVAL);
6971
807f8a8c 6972 request = kzalloc(sizeof(*request)
a2cd43c5 6973 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6974 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6975 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6976 + sizeof(*request->channels) * n_channels
807f8a8c 6977 + ie_len, GFP_KERNEL);
256da02d
LC		 6978 if (!request)
6979 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6980
6981 if (n_ssids)
6982 request->ssids = (void *)&request->channels[n_channels];
6983 request->n_ssids = n_ssids;
6984 if (ie_len) {
13874e4b 6985 if (n_ssids)
807f8a8c
LC		 6986 request->ie = (void *)(request->ssids + n_ssids);
6987 else
6988 request->ie = (void *)(request->channels + n_channels);
6989 }
6990
a1f1c21c
LC		 6991 if (n_match_sets) {
6992 if (request->ie)
6993 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6994 else if (n_ssids)
a1f1c21c
LC		 6995 request->match_sets =
6996 (void *)(request->ssids + n_ssids);
6997 else
6998 request->match_sets =
6999 (void *)(request->channels + n_channels);
7000 }
7001 request->n_match_sets = n_match_sets;
7002
3b06d277
AS		 7003 if (n_match_sets)
7004 request->scan_plans = (void *)(request->match_sets +
7005 n_match_sets);
7006 else if (request->ie)
7007 request->scan_plans = (void *)(request->ie + ie_len);
7008 else if (n_ssids)
7009 request->scan_plans = (void *)(request->ssids + n_ssids);
7010 else
7011 request->scan_plans = (void *)(request->channels + n_channels);
7012
7013 request->n_scan_plans = n_plans;
7014
807f8a8c 7015 i = 0;
256da02d 7016 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 7017 /* user specified, bail out if channel not found */
7018 nla_for_each_nested(attr,
256da02d 7019 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 7020 tmp) {
7021 struct ieee80211_channel *chan;
7022
7023 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7024
7025 if (!chan) {
7026 err = -EINVAL;
7027 goto out_free;
7028 }
7029
7030 /* ignore disabled channels */
7031 if (chan->flags & IEEE80211_CHAN_DISABLED)
7032 continue;
7033
7034 request->channels[i] = chan;
7035 i++;
7036 }
7037 } else {
7038 /* all channels */
57fbcce3 7039 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 7040 int j;
7a087e74 7041
807f8a8c
LC		 7042 if (!wiphy->bands[band])
7043 continue;
7044 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7045 struct ieee80211_channel *chan;
7046
7047 chan = &wiphy->bands[band]->channels[j];
7048
7049 if (chan->flags & IEEE80211_CHAN_DISABLED)
7050 continue;
7051
7052 request->channels[i] = chan;
7053 i++;
7054 }
7055 }
7056 }
7057
7058 if (!i) {
7059 err = -EINVAL;
7060 goto out_free;
7061 }
7062
7063 request->n_channels = i;
7064
7065 i = 0;
13874e4b 7066 if (n_ssids) {
256da02d 7067 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7068 tmp) {
57a27e1d 7069 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7070 err = -EINVAL;
7071 goto out_free;
7072 }
57a27e1d 7073 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7074 memcpy(request->ssids[i].ssid, nla_data(attr),
7075 nla_len(attr));
807f8a8c
LC		 7076 i++;
7077 }
7078 }
7079
a1f1c21c 7080 i = 0;
256da02d 7081 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7082 nla_for_each_nested(attr,
256da02d 7083 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7084 tmp) {
88e920b4 7085 struct nlattr *ssid, *rssi;
a1f1c21c 7086
bfe2c7b1
JB		 7087 err = nla_parse_nested(tb,
7088 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7089 attr, nl80211_match_policy);
ae811e21
JB		 7090 if (err)
7091 goto out_free;
4a4ab0d7 7092 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 7093 if (ssid) {
ea73cbce
JB		 7094 if (WARN_ON(i >= n_match_sets)) {
7095 /* this indicates a programming error,
7096 * the loop above should have verified
7097 * things properly
7098 */
7099 err = -EINVAL;
7100 goto out_free;
7101 }
7102
a1f1c21c
LC		 7103 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7104 err = -EINVAL;
7105 goto out_free;
7106 }
7107 memcpy(request->match_sets[i].ssid.ssid,
7108 nla_data(ssid), nla_len(ssid));
7109 request->match_sets[i].ssid.ssid_len =
7110 nla_len(ssid);
56ab364f 7111 /* special attribute - old implementation w/a */
ea73cbce
JB		 7112 request->match_sets[i].rssi_thold =
7113 default_match_rssi;
7114 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7115 if (rssi)
7116 request->match_sets[i].rssi_thold =
7117 nla_get_s32(rssi);
a1f1c21c
LC		 7118 }
7119 i++;
7120 }
ea73cbce
JB		 7121
7122 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7123 if (i == 0 && n_match_sets)
ea73cbce
JB		 7124 request->match_sets[0].rssi_thold = default_match_rssi;
7125
7126 request->min_rssi_thold = INT_MAX;
7127 for (i = 0; i < n_match_sets; i++)
7128 request->min_rssi_thold =
7129 min(request->match_sets[i].rssi_thold,
7130 request->min_rssi_thold);
7131 } else {
7132 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7133 }
7134
9900e484
JB		 7135 if (ie_len) {
7136 request->ie_len = ie_len;
807f8a8c 7137 memcpy((void *)request->ie,
256da02d 7138 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7139 request->ie_len);
7140 }
7141
256da02d 7142 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 7143 request->flags = nla_get_u32(
256da02d 7144 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 7145 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7146 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 7147 err = -EOPNOTSUPP;
7148 goto out_free;
7149 }
ad2b26ab
JB		 7150
7151 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7152 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7153
7154 if (!wdev) /* must be net-detect */
7155 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7156
7157 if (!(wiphy->features & flg)) {
7158 err = -EOPNOTSUPP;
7159 goto out_free;
7160 }
7161
7162 if (wdev && wdev->current_bss) {
7163 err = -EOPNOTSUPP;
7164 goto out_free;
7165 }
7166
7167 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7168 request->mac_addr_mask);
7169 if (err)
7170 goto out_free;
7171 }
46856bbf 7172 }
ed473771 7173
9c748934
LC		 7174 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7175 request->delay =
7176 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7177
3b06d277
AS		 7178 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7179 if (err)
7180 goto out_free;
7181
15d6030b 7182 request->scan_start = jiffies;
807f8a8c 7183
256da02d 7184 return request;
807f8a8c
LC		 7185
7186out_free:
7187 kfree(request);
256da02d
LC		 7188 return ERR_PTR(err);
7189}
7190
7191static int nl80211_start_sched_scan(struct sk_buff *skb,
7192 struct genl_info *info)
7193{
7194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7195 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7196 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7197 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 7198 int err;
7199
7200 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7201 !rdev->ops->sched_scan_start)
7202 return -EOPNOTSUPP;
7203
7204 if (rdev->sched_scan_req)
7205 return -EINPROGRESS;
7206
31a60ed1
JR		 7207 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7208 info->attrs);
7209
7210 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7211 if (err)
7212 goto out_err;
7213
31a60ed1 7214 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7215 if (err)
7216 goto out_free;
7217
31a60ed1
JR		 7218 sched_scan_req->dev = dev;
7219 sched_scan_req->wiphy = &rdev->wiphy;
7220
93a1e86c
JR		 7221 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7222 sched_scan_req->owner_nlportid = info->snd_portid;
7223
31a60ed1 7224 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 7225
7226 nl80211_send_sched_scan(rdev, dev,
7227 NL80211_CMD_START_SCHED_SCAN);
7228 return 0;
7229
7230out_free:
31a60ed1 7231 kfree(sched_scan_req);
256da02d 7232out_err:
807f8a8c
LC		 7233 return err;
7234}
7235
7236static int nl80211_stop_sched_scan(struct sk_buff *skb,
7237 struct genl_info *info)
7238{
7239 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7240
7241 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7242 !rdev->ops->sched_scan_stop)
7243 return -EOPNOTSUPP;
7244
5fe231e8 7245 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 7246}
7247
04f39047
SW		 7248static int nl80211_start_radar_detection(struct sk_buff *skb,
7249 struct genl_info *info)
7250{
7251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7252 struct net_device *dev = info->user_ptr[1];
7253 struct wireless_dev *wdev = dev->ieee80211_ptr;
7254 struct cfg80211_chan_def chandef;
55f7435c 7255 enum nl80211_dfs_regions dfs_region;
31559f35 7256 unsigned int cac_time_ms;
04f39047
SW		 7257 int err;
7258
55f7435c
LR		 7259 dfs_region = reg_get_dfs_region(wdev->wiphy);
7260 if (dfs_region == NL80211_DFS_UNSET)
7261 return -EINVAL;
7262
04f39047
SW		 7263 err = nl80211_parse_chandef(rdev, info, &chandef);
7264 if (err)
7265 return err;
7266
ff311bc1
SW		 7267 if (netif_carrier_ok(dev))
7268 return -EBUSY;
7269
04f39047
SW		 7270 if (wdev->cac_started)
7271 return -EBUSY;
7272
2beb6dab 7273 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7274 wdev->iftype);
04f39047
SW		 7275 if (err < 0)
7276 return err;
7277
7278 if (err == 0)
7279 return -EINVAL;
7280
fe7c3a1f 7281 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7282 return -EINVAL;
7283
7284 if (!rdev->ops->start_radar_detection)
7285 return -EOPNOTSUPP;
7286
31559f35
JD		 7287 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7288 if (WARN_ON(!cac_time_ms))
7289 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7290
a1056b1b 7291 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7292 if (!err) {
9e0e2961 7293 wdev->chandef = chandef;
04f39047
SW		 7294 wdev->cac_started = true;
7295 wdev->cac_start_time = jiffies;
31559f35 7296 wdev->cac_time_ms = cac_time_ms;
04f39047 7297 }
04f39047
SW		 7298 return err;
7299}
7300
16ef1fe2
SW		 7301static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7302{
7303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7304 struct net_device *dev = info->user_ptr[1];
7305 struct wireless_dev *wdev = dev->ieee80211_ptr;
7306 struct cfg80211_csa_settings params;
7307 /* csa_attrs is defined static to avoid waste of stack size - this
7308 * function is called under RTNL lock, so this should not be a problem.
7309 */
7310 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7311 int err;
ee4bc9e7 7312 bool need_new_beacon = false;
9a774c78 7313 int len, i;
252e07ca 7314 u32 cs_count;
16ef1fe2
SW		 7315
7316 if (!rdev->ops->channel_switch ||
7317 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7318 return -EOPNOTSUPP;
7319
ee4bc9e7
SW		 7320 switch (dev->ieee80211_ptr->iftype) {
7321 case NL80211_IFTYPE_AP:
7322 case NL80211_IFTYPE_P2P_GO:
7323 need_new_beacon = true;
7324
7325 /* useless if AP is not running */
7326 if (!wdev->beacon_interval)
1ff79dfa 7327 return -ENOTCONN;
ee4bc9e7
SW		 7328 break;
7329 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7330 if (!wdev->ssid_len)
7331 return -ENOTCONN;
7332 break;
c6da674a 7333 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7334 if (!wdev->mesh_id_len)
7335 return -ENOTCONN;
ee4bc9e7
SW		 7336 break;
7337 default:
16ef1fe2 7338 return -EOPNOTSUPP;
ee4bc9e7 7339 }
16ef1fe2
SW		 7340
7341 memset(&params, 0, sizeof(params));
7342
7343 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7344 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7345 return -EINVAL;
7346
7347 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7348 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7349 return -EINVAL;
7350
252e07ca
LC		 7351 /* Even though the attribute is u32, the specification says
7352 * u8, so let's make sure we don't overflow.
7353 */
7354 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7355 if (cs_count > 255)
7356 return -EINVAL;
7357
7358 params.count = cs_count;
16ef1fe2 7359
ee4bc9e7
SW		 7360 if (!need_new_beacon)
7361 goto skip_beacons;
7362
16ef1fe2
SW		 7363 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7364 if (err)
7365 return err;
7366
7367 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7368 info->attrs[NL80211_ATTR_CSA_IES],
7369 nl80211_policy);
7370 if (err)
7371 return err;
7372
7373 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7374 if (err)
7375 return err;
7376
7377 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7378 return -EINVAL;
7379
9a774c78
AO		 7380 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7381 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7382 return -EINVAL;
7383
9a774c78
AO		 7384 params.n_counter_offsets_beacon = len / sizeof(u16);
7385 if (rdev->wiphy.max_num_csa_counters &&
7386 (params.n_counter_offsets_beacon >
7387 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7388 return -EINVAL;
7389
9a774c78
AO		 7390 params.counter_offsets_beacon =
7391 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7392
7393 /* sanity checks - counters should fit and be the same */
7394 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7395 u16 offset = params.counter_offsets_beacon[i];
7396
7397 if (offset >= params.beacon_csa.tail_len)
7398 return -EINVAL;
7399
7400 if (params.beacon_csa.tail[offset] != params.count)
7401 return -EINVAL;
7402 }
7403
16ef1fe2 7404 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7405 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7406 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7407 return -EINVAL;
7408
9a774c78
AO		 7409 params.n_counter_offsets_presp = len / sizeof(u16);
7410 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7411 (params.n_counter_offsets_presp >
9a774c78 7412 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7413 return -EINVAL;
9a774c78
AO		 7414
7415 params.counter_offsets_presp =
7416 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7417
7418 /* sanity checks - counters should fit and be the same */
7419 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7420 u16 offset = params.counter_offsets_presp[i];
7421
7422 if (offset >= params.beacon_csa.probe_resp_len)
7423 return -EINVAL;
7424
7425 if (params.beacon_csa.probe_resp[offset] !=
7426 params.count)
7427 return -EINVAL;
7428 }
16ef1fe2
SW		 7429 }
7430
ee4bc9e7 7431skip_beacons:
16ef1fe2
SW		 7432 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7433 if (err)
7434 return err;
7435
923b352f
AN		 7436 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7437 wdev->iftype))
16ef1fe2
SW		 7438 return -EINVAL;
7439
2beb6dab
LC		 7440 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7441 &params.chandef,
7442 wdev->iftype);
7443 if (err < 0)
7444 return err;
7445
dcc6c2f5 7446 if (err > 0)
2beb6dab 7447 params.radar_required = true;
16ef1fe2 7448
16ef1fe2
SW		 7449 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7450 params.block_tx = true;
7451
c56589ed
SW		 7452 wdev_lock(wdev);
7453 err = rdev_channel_switch(rdev, dev, &params);
7454 wdev_unlock(wdev);
7455
7456 return err;
16ef1fe2
SW		 7457}
7458
9720bb3a
JB		 7459static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7460 u32 seq, int flags,
2a519311 7461 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7462 struct wireless_dev *wdev,
7463 struct cfg80211_internal_bss *intbss)
2a519311 7464{
48ab905d 7465 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7466 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7467 void *hdr;
7468 struct nlattr *bss;
48ab905d
JB		 7469
7470 ASSERT_WDEV_LOCK(wdev);
2a519311 7471
15e47304 7472 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7473 NL80211_CMD_NEW_SCAN_RESULTS);
7474 if (!hdr)
7475 return -1;
7476
9720bb3a
JB		 7477 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7478
97990a06
JB		 7479 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7480 goto nla_put_failure;
7481 if (wdev->netdev &&
9360ffd1
DM		 7482 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7483 goto nla_put_failure;
2dad624e
ND		 7484 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7485 NL80211_ATTR_PAD))
97990a06 7486 goto nla_put_failure;
2a519311
JB		 7487
7488 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7489 if (!bss)
7490 goto nla_put_failure;
9360ffd1 7491 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7492 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7493 goto nla_put_failure;
9caf0364
JB		 7494
7495 rcu_read_lock();
0e227084
JB		 7496 /* indicate whether we have probe response data or not */
7497 if (rcu_access_pointer(res->proberesp_ies) &&
7498 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7499 goto fail_unlock_rcu;
7500
7501 /* this pointer prefers to be pointed to probe response data
7502 * but is always valid
7503 */
9caf0364 7504 ies = rcu_dereference(res->ies);
8cef2c9d 7505 if (ies) {
2dad624e
ND		 7506 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7507 NL80211_BSS_PAD))
8cef2c9d 7508 goto fail_unlock_rcu;
8cef2c9d
JB		 7509 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7510 ies->len, ies->data))
7511 goto fail_unlock_rcu;
9caf0364 7512 }
0e227084
JB		 7513
7514 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7515 ies = rcu_dereference(res->beacon_ies);
0e227084 7516 if (ies && ies->from_beacon) {
2dad624e
ND		 7517 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7518 NL80211_BSS_PAD))
8cef2c9d
JB		 7519 goto fail_unlock_rcu;
7520 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7521 ies->len, ies->data))
7522 goto fail_unlock_rcu;
9caf0364
JB		 7523 }
7524 rcu_read_unlock();
7525
9360ffd1
DM		 7526 if (res->beacon_interval &&
7527 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7528 goto nla_put_failure;
7529 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7530 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7531 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7532 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7533 jiffies_to_msecs(jiffies - intbss->ts)))
7534 goto nla_put_failure;
2a519311 7535
1d76250b
AS		 7536 if (intbss->parent_tsf &&
7537 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7538 intbss->parent_tsf, NL80211_BSS_PAD) ||
7539 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7540 intbss->parent_bssid)))
7541 goto nla_put_failure;
7542
6e19bc4b 7543 if (intbss->ts_boottime &&
2dad624e
ND		 7544 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7545 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7546 goto nla_put_failure;
7547
77965c97 7548 switch (rdev->wiphy.signal_type) {
2a519311 7549 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7550 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7551 goto nla_put_failure;
2a519311
JB		 7552 break;
7553 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7554 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7555 goto nla_put_failure;
2a519311
JB		 7556 break;
7557 default:
7558 break;
7559 }
7560
48ab905d 7561 switch (wdev->iftype) {
074ac8df 7562 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7563 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7564 if (intbss == wdev->current_bss &&
7565 nla_put_u32(msg, NL80211_BSS_STATUS,
7566 NL80211_BSS_STATUS_ASSOCIATED))
7567 goto nla_put_failure;
48ab905d
JB		 7568 break;
7569 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7570 if (intbss == wdev->current_bss &&
7571 nla_put_u32(msg, NL80211_BSS_STATUS,
7572 NL80211_BSS_STATUS_IBSS_JOINED))
7573 goto nla_put_failure;
48ab905d
JB		 7574 break;
7575 default:
7576 break;
7577 }
7578
2a519311
JB		 7579 nla_nest_end(msg, bss);
7580
053c095a
JB		 7581 genlmsg_end(msg, hdr);
7582 return 0;
2a519311 7583
8cef2c9d
JB		 7584 fail_unlock_rcu:
7585 rcu_read_unlock();
2a519311
JB		 7586 nla_put_failure:
7587 genlmsg_cancel(msg, hdr);
7588 return -EMSGSIZE;
7589}
7590
97990a06 7591static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7592{
48ab905d 7593 struct cfg80211_registered_device *rdev;
2a519311 7594 struct cfg80211_internal_bss *scan;
48ab905d 7595 struct wireless_dev *wdev;
97990a06 7596 int start = cb->args[2], idx = 0;
2a519311
JB		 7597 int err;
7598
97990a06 7599 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7600 if (err)
7601 return err;
2a519311 7602
48ab905d
JB		 7603 wdev_lock(wdev);
7604 spin_lock_bh(&rdev->bss_lock);
7605 cfg80211_bss_expire(rdev);
7606
9720bb3a
JB		 7607 cb->seq = rdev->bss_generation;
7608
48ab905d 7609 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7610 if (++idx <= start)
7611 continue;
9720bb3a 7612 if (nl80211_send_bss(skb, cb,
2a519311 7613 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7614 rdev, wdev, scan) < 0) {
2a519311 7615 idx--;
67748893 7616 break;
2a519311
JB		 7617 }
7618 }
7619
48ab905d
JB		 7620 spin_unlock_bh(&rdev->bss_lock);
7621 wdev_unlock(wdev);
2a519311 7622
97990a06
JB		 7623 cb->args[2] = idx;
7624 nl80211_finish_wdev_dump(rdev);
2a519311 7625
67748893 7626 return skb->len;
2a519311
JB		 7627}
7628
15e47304 7629static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7630 int flags, struct net_device *dev,
7631 bool allow_radio_stats,
7632 struct survey_info *survey)
61fa713c
HS		 7633{
7634 void *hdr;
7635 struct nlattr *infoattr;
7636
11f78ac3
JB		 7637 /* skip radio stats if userspace didn't request them */
7638 if (!survey->channel && !allow_radio_stats)
7639 return 0;
7640
15e47304 7641 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7642 NL80211_CMD_NEW_SURVEY_RESULTS);
7643 if (!hdr)
7644 return -ENOMEM;
7645
9360ffd1
DM		 7646 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7647 goto nla_put_failure;
61fa713c
HS		 7648
7649 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7650 if (!infoattr)
7651 goto nla_put_failure;
7652
11f78ac3
JB		 7653 if (survey->channel &&
7654 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7655 survey->channel->center_freq))
7656 goto nla_put_failure;
7657
7658 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7659 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7660 goto nla_put_failure;
7661 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7662 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7663 goto nla_put_failure;
4ed20beb 7664 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7665 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7666 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7667 goto nla_put_failure;
4ed20beb 7668 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7669 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7670 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7671 goto nla_put_failure;
4ed20beb 7672 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7673 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7674 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7675 goto nla_put_failure;
4ed20beb 7676 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7677 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7678 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7679 goto nla_put_failure;
4ed20beb 7680 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7681 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7682 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7683 goto nla_put_failure;
052536ab 7684 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7685 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7686 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7687 goto nla_put_failure;
61fa713c
HS		 7688
7689 nla_nest_end(msg, infoattr);
7690
053c095a
JB		 7691 genlmsg_end(msg, hdr);
7692 return 0;
61fa713c
HS		 7693
7694 nla_put_failure:
7695 genlmsg_cancel(msg, hdr);
7696 return -EMSGSIZE;
7697}
7698
11f78ac3 7699static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c 7700{
c90c39da 7701 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
61fa713c 7702 struct survey_info survey;
1b8ec87a 7703 struct cfg80211_registered_device *rdev;
97990a06
JB		 7704 struct wireless_dev *wdev;
7705 int survey_idx = cb->args[2];
61fa713c 7706 int res;
11f78ac3 7707 bool radio_stats;
61fa713c 7708
1b8ec87a 7709 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7710 if (res)
7711 return res;
61fa713c 7712
11f78ac3 7713 /* prepare_wdev_dump parsed the attributes */
c90c39da 7714 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
11f78ac3 7715
97990a06
JB		 7716 if (!wdev->netdev) {
7717 res = -EINVAL;
7718 goto out_err;
7719 }
7720
1b8ec87a 7721 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7722 res = -EOPNOTSUPP;
7723 goto out_err;
7724 }
7725
7726 while (1) {
1b8ec87a 7727 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7728 if (res == -ENOENT)
7729 break;
7730 if (res)
7731 goto out_err;
7732
11f78ac3
JB		 7733 /* don't send disabled channels, but do send non-channel data */
7734 if (survey.channel &&
7735 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7736 survey_idx++;
7737 continue;
7738 }
7739
61fa713c 7740 if (nl80211_send_survey(skb,
15e47304 7741 NETLINK_CB(cb->skb).portid,
61fa713c 7742 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7743 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7744 goto out;
7745 survey_idx++;
7746 }
7747
7748 out:
97990a06 7749 cb->args[2] = survey_idx;
61fa713c
HS		 7750 res = skb->len;
7751 out_err:
1b8ec87a 7752 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7753 return res;
7754}
7755
b23aa676
SO		 7756static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7757{
7758 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7759 NL80211_WPA_VERSION_2));
7760}
7761
636a5d36
JM		 7762static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7763{
4c476991
JB		 7764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7765 struct net_device *dev = info->user_ptr[1];
19957bb3 7766 struct ieee80211_channel *chan;
11b6b5a4
JM		 7767 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
7768 int err, ssid_len, ie_len = 0, auth_data_len = 0;
19957bb3 7769 enum nl80211_auth_type auth_type;
fffd0934 7770 struct key_parse key;
d5cdfacb 7771 bool local_state_change;
636a5d36 7772
f4a11bb0
JB		 7773 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7774 return -EINVAL;
7775
7776 if (!info->attrs[NL80211_ATTR_MAC])
7777 return -EINVAL;
7778
1778092e
JM		 7779 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7780 return -EINVAL;
7781
19957bb3
JB		 7782 if (!info->attrs[NL80211_ATTR_SSID])
7783 return -EINVAL;
7784
7785 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7786 return -EINVAL;
7787
fffd0934
JB		 7788 err = nl80211_parse_key(info, &key);
7789 if (err)
7790 return err;
7791
7792 if (key.idx >= 0) {
e31b8213
JB		 7793 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7794 return -EINVAL;
fffd0934
JB		 7795 if (!key.p.key || !key.p.key_len)
7796 return -EINVAL;
7797 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7798 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7799 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7800 key.p.key_len != WLAN_KEY_LEN_WEP104))
7801 return -EINVAL;
b6b5555b 7802 if (key.idx > 3)
fffd0934
JB		 7803 return -EINVAL;
7804 } else {
7805 key.p.key_len = 0;
7806 key.p.key = NULL;
7807 }
7808
afea0b7a
JB		 7809 if (key.idx >= 0) {
7810 int i;
7811 bool ok = false;
7a087e74 7812
afea0b7a
JB		 7813 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7814 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7815 ok = true;
7816 break;
7817 }
7818 }
4c476991
JB		 7819 if (!ok)
7820 return -EINVAL;
afea0b7a
JB		 7821 }
7822
4c476991
JB		 7823 if (!rdev->ops->auth)
7824 return -EOPNOTSUPP;
636a5d36 7825
074ac8df 7826 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7827 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7828 return -EOPNOTSUPP;
eec60b03 7829
19957bb3 7830 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7831 chan = nl80211_get_valid_chan(&rdev->wiphy,
7832 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7833 if (!chan)
4c476991 7834 return -EINVAL;
636a5d36 7835
19957bb3
JB		 7836 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7837 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7838
7839 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7840 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7841 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7842 }
7843
19957bb3 7844 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7845 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7846 return -EINVAL;
636a5d36 7847
63181060
JM		 7848 if ((auth_type == NL80211_AUTHTYPE_SAE ||
7849 auth_type == NL80211_AUTHTYPE_FILS_SK ||
7850 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
7851 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
11b6b5a4 7852 !info->attrs[NL80211_ATTR_AUTH_DATA])
e39e5b5e
JM		 7853 return -EINVAL;
7854
11b6b5a4 7855 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
63181060
JM		 7856 if (auth_type != NL80211_AUTHTYPE_SAE &&
7857 auth_type != NL80211_AUTHTYPE_FILS_SK &&
7858 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
7859 auth_type != NL80211_AUTHTYPE_FILS_PK)
e39e5b5e 7860 return -EINVAL;
11b6b5a4
JM		 7861 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
7862 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
e39e5b5e 7863 /* need to include at least Auth Transaction and Status Code */
11b6b5a4 7864 if (auth_data_len < 4)
e39e5b5e
JM		 7865 return -EINVAL;
7866 }
7867
d5cdfacb
JM		 7868 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7869
95de817b
JB		 7870 /*
7871 * Since we no longer track auth state, ignore
7872 * requests to only change local state.
7873 */
7874 if (local_state_change)
7875 return 0;
7876
91bf9b26
JB		 7877 wdev_lock(dev->ieee80211_ptr);
7878 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7879 ssid, ssid_len, ie, ie_len,
7880 key.p.key, key.p.key_len, key.idx,
11b6b5a4 7881 auth_data, auth_data_len);
91bf9b26
JB		 7882 wdev_unlock(dev->ieee80211_ptr);
7883 return err;
636a5d36
JM		 7884}
7885
c0692b8f
JB		 7886static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7887 struct genl_info *info,
3dc27d25
JB		 7888 struct cfg80211_crypto_settings *settings,
7889 int cipher_limit)
b23aa676 7890{
c0b2bbd8
JB		 7891 memset(settings, 0, sizeof(*settings));
7892
b23aa676
SO		 7893 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7894
c0692b8f
JB		 7895 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7896 u16 proto;
7a087e74 7897
c0692b8f
JB		 7898 proto = nla_get_u16(
7899 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7900 settings->control_port_ethertype = cpu_to_be16(proto);
7901 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7902 proto != ETH_P_PAE)
7903 return -EINVAL;
7904 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7905 settings->control_port_no_encrypt = true;
7906 } else
7907 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7908
b23aa676
SO		 7909 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7910 void *data;
7911 int len, i;
7912
7913 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7914 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7915 settings->n_ciphers_pairwise = len / sizeof(u32);
7916
7917 if (len % sizeof(u32))
7918 return -EINVAL;
7919
3dc27d25 7920 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7921 return -EINVAL;
7922
7923 memcpy(settings->ciphers_pairwise, data, len);
7924
7925 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7926 if (!cfg80211_supported_cipher_suite(
7927 &rdev->wiphy,
b23aa676
SO		 7928 settings->ciphers_pairwise[i]))
7929 return -EINVAL;
7930 }
7931
7932 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7933 settings->cipher_group =
7934 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7935 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7936 settings->cipher_group))
b23aa676
SO		 7937 return -EINVAL;
7938 }
7939
7940 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7941 settings->wpa_versions =
7942 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7943 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7944 return -EINVAL;
7945 }
7946
7947 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7948 void *data;
6d30240e 7949 int len;
b23aa676
SO		 7950
7951 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7952 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7953 settings->n_akm_suites = len / sizeof(u32);
7954
7955 if (len % sizeof(u32))
7956 return -EINVAL;
7957
1b9ca027
JM		 7958 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7959 return -EINVAL;
7960
b23aa676 7961 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7962 }
7963
7964 return 0;
7965}
7966
636a5d36
JM		 7967static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7968{
4c476991
JB		 7969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7970 struct net_device *dev = info->user_ptr[1];
f444de05 7971 struct ieee80211_channel *chan;
f62fab73
JB		 7972 struct cfg80211_assoc_request req = {};
7973 const u8 *bssid, *ssid;
7974 int err, ssid_len = 0;
636a5d36 7975
f4a11bb0
JB		 7976 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7977 return -EINVAL;
7978
7979 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7980 !info->attrs[NL80211_ATTR_SSID] ||
7981 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7982 return -EINVAL;
7983
4c476991
JB		 7984 if (!rdev->ops->assoc)
7985 return -EOPNOTSUPP;
636a5d36 7986
074ac8df 7987 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7988 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7989 return -EOPNOTSUPP;
eec60b03 7990
19957bb3 7991 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7992
664834de
JM		 7993 chan = nl80211_get_valid_chan(&rdev->wiphy,
7994 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7995 if (!chan)
4c476991 7996 return -EINVAL;
636a5d36 7997
19957bb3
JB		 7998 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7999 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8000
8001 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 8002 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8003 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8004 }
8005
dc6382ce 8006 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 8007 enum nl80211_mfp mfp =
dc6382ce 8008 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 8009 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 8010 req.use_mfp = true;
4c476991
JB		 8011 else if (mfp != NL80211_MFP_NO)
8012 return -EINVAL;
dc6382ce
JM		 8013 }
8014
3e5d7649 8015 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 8016 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 8017
7e7c8926 8018 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 8019 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 8020
8021 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 8022 memcpy(&req.ht_capa_mask,
8023 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8024 sizeof(req.ht_capa_mask));
7e7c8926
BG		 8025
8026 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 8027 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 8028 return -EINVAL;
f62fab73
JB		 8029 memcpy(&req.ht_capa,
8030 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8031 sizeof(req.ht_capa));
7e7c8926
BG		 8032 }
8033
ee2aca34 8034 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 8035 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 8036
8037 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 8038 memcpy(&req.vht_capa_mask,
8039 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8040 sizeof(req.vht_capa_mask));
ee2aca34
JB		 8041
8042 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 8043 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 8044 return -EINVAL;
f62fab73
JB		 8045 memcpy(&req.vht_capa,
8046 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8047 sizeof(req.vht_capa));
ee2aca34
JB		 8048 }
8049
bab5ab7d 8050 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8051 if (!((rdev->wiphy.features &
8052 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8053 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8054 !wiphy_ext_feature_isset(&rdev->wiphy,
8055 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8056 return -EINVAL;
8057 req.flags |= ASSOC_REQ_USE_RRM;
8058 }
8059
348bd456
JM		 8060 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8061 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8062 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8063 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8064 return -EINVAL;
8065 req.fils_nonces =
8066 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8067 }
8068
f62fab73 8069 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8070 if (!err) {
8071 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 8072 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8073 ssid, ssid_len, &req);
91bf9b26
JB		 8074 wdev_unlock(dev->ieee80211_ptr);
8075 }
636a5d36 8076
636a5d36
JM		 8077 return err;
8078}
8079
8080static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8081{
4c476991
JB		 8082 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8083 struct net_device *dev = info->user_ptr[1];
19957bb3 8084 const u8 *ie = NULL, *bssid;
91bf9b26 8085 int ie_len = 0, err;
19957bb3 8086 u16 reason_code;
d5cdfacb 8087 bool local_state_change;
636a5d36 8088
f4a11bb0
JB		 8089 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8090 return -EINVAL;
8091
8092 if (!info->attrs[NL80211_ATTR_MAC])
8093 return -EINVAL;
8094
8095 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8096 return -EINVAL;
8097
4c476991
JB		 8098 if (!rdev->ops->deauth)
8099 return -EOPNOTSUPP;
636a5d36 8100
074ac8df 8101 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8102 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8103 return -EOPNOTSUPP;
eec60b03 8104
19957bb3 8105 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8106
19957bb3
JB		 8107 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8108 if (reason_code == 0) {
f4a11bb0 8109 /* Reason Code 0 is reserved */
4c476991 8110 return -EINVAL;
255e737e 8111 }
636a5d36
JM		 8112
8113 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8114 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8115 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8116 }
8117
d5cdfacb
JM		 8118 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8119
91bf9b26
JB		 8120 wdev_lock(dev->ieee80211_ptr);
8121 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8122 local_state_change);
8123 wdev_unlock(dev->ieee80211_ptr);
8124 return err;
636a5d36
JM		 8125}
8126
8127static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8128{
4c476991
JB		 8129 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8130 struct net_device *dev = info->user_ptr[1];
19957bb3 8131 const u8 *ie = NULL, *bssid;
91bf9b26 8132 int ie_len = 0, err;
19957bb3 8133 u16 reason_code;
d5cdfacb 8134 bool local_state_change;
636a5d36 8135
f4a11bb0
JB		 8136 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8137 return -EINVAL;
8138
8139 if (!info->attrs[NL80211_ATTR_MAC])
8140 return -EINVAL;
8141
8142 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8143 return -EINVAL;
8144
4c476991
JB		 8145 if (!rdev->ops->disassoc)
8146 return -EOPNOTSUPP;
636a5d36 8147
074ac8df 8148 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8149 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8150 return -EOPNOTSUPP;
eec60b03 8151
19957bb3 8152 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8153
19957bb3
JB		 8154 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8155 if (reason_code == 0) {
f4a11bb0 8156 /* Reason Code 0 is reserved */
4c476991 8157 return -EINVAL;
255e737e 8158 }
636a5d36
JM		 8159
8160 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8161 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8162 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8163 }
8164
d5cdfacb
JM		 8165 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8166
91bf9b26
JB		 8167 wdev_lock(dev->ieee80211_ptr);
8168 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8169 local_state_change);
8170 wdev_unlock(dev->ieee80211_ptr);
8171 return err;
636a5d36
JM		 8172}
8173
dd5b4cc7
FF		 8174static bool
8175nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8176 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8177 int rateval)
8178{
8179 struct wiphy *wiphy = &rdev->wiphy;
8180 bool found = false;
8181 int band, i;
8182
57fbcce3 8183 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8184 struct ieee80211_supported_band *sband;
8185
8186 sband = wiphy->bands[band];
8187 if (!sband)
8188 continue;
8189
8190 for (i = 0; i < sband->n_bitrates; i++) {
8191 if (sband->bitrates[i].bitrate == rateval) {
8192 mcast_rate[band] = i + 1;
8193 found = true;
8194 break;
8195 }
8196 }
8197 }
8198
8199 return found;
8200}
8201
04a773ad
JB		 8202static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8203{
4c476991
JB		 8204 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8205 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8206 struct cfg80211_ibss_params ibss;
8207 struct wiphy *wiphy;
fffd0934 8208 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8209 int err;
8210
8e30bc55
JB		 8211 memset(&ibss, 0, sizeof(ibss));
8212
04a773ad
JB		 8213 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8214 return -EINVAL;
8215
683b6d3b 8216 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8217 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8218 return -EINVAL;
8219
8e30bc55
JB		 8220 ibss.beacon_interval = 100;
8221
12d20fc9 8222 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8223 ibss.beacon_interval =
8224 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8225
0c317a02
PK		 8226 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8227 ibss.beacon_interval);
12d20fc9
PK		 8228 if (err)
8229 return err;
8e30bc55 8230
4c476991
JB		 8231 if (!rdev->ops->join_ibss)
8232 return -EOPNOTSUPP;
04a773ad 8233
4c476991
JB		 8234 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8235 return -EOPNOTSUPP;
04a773ad 8236
79c97e97 8237 wiphy = &rdev->wiphy;
04a773ad 8238
39193498 8239 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8240 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8241
8242 if (!is_valid_ether_addr(ibss.bssid))
8243 return -EINVAL;
8244 }
04a773ad
JB		 8245 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8246 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8247
8248 if (info->attrs[NL80211_ATTR_IE]) {
8249 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8250 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8251 }
8252
683b6d3b
JB		 8253 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8254 if (err)
8255 return err;
04a773ad 8256
174e0cd2
IP		 8257 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8258 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8259 return -EINVAL;
8260
2f301ab2 8261 switch (ibss.chandef.width) {
bf372645
SW		 8262 case NL80211_CHAN_WIDTH_5:
8263 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8264 case NL80211_CHAN_WIDTH_20_NOHT:
8265 break;
8266 case NL80211_CHAN_WIDTH_20:
8267 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8268 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8269 return -EINVAL;
8270 break;
8271 case NL80211_CHAN_WIDTH_80:
8272 case NL80211_CHAN_WIDTH_80P80:
8273 case NL80211_CHAN_WIDTH_160:
8274 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8275 return -EINVAL;
8276 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8277 NL80211_EXT_FEATURE_VHT_IBSS))
8278 return -EINVAL;
8279 break;
2f301ab2 8280 default:
c04d6150 8281 return -EINVAL;
2f301ab2 8282 }
db9c64cf 8283
04a773ad 8284 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8285 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8286
fbd2c8dc
TP		 8287 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8288 u8 *rates =
8289 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8290 int n_rates =
8291 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8292 struct ieee80211_supported_band *sband =
683b6d3b 8293 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8294
34850ab2
JB		 8295 err = ieee80211_get_ratemask(sband, rates, n_rates,
8296 &ibss.basic_rates);
8297 if (err)
8298 return err;
fbd2c8dc 8299 }
dd5b4cc7 8300
803768f5
SW		 8301 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8302 memcpy(&ibss.ht_capa_mask,
8303 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8304 sizeof(ibss.ht_capa_mask));
8305
8306 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8307 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8308 return -EINVAL;
8309 memcpy(&ibss.ht_capa,
8310 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8311 sizeof(ibss.ht_capa));
8312 }
8313
dd5b4cc7
FF		 8314 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8315 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8316 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8317 return -EINVAL;
fbd2c8dc 8318
4c476991 8319 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8320 bool no_ht = false;
8321
4c476991 8322 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8323 info->attrs[NL80211_ATTR_KEYS],
8324 &no_ht);
4c476991
JB		 8325 if (IS_ERR(connkeys))
8326 return PTR_ERR(connkeys);
de7044ee 8327
3d9d1d66
JB		 8328 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8329 no_ht) {
5e950a78 8330 kzfree(connkeys);
de7044ee
SM		 8331 return -EINVAL;
8332 }
4c476991 8333 }
04a773ad 8334
267335d6
AQ		 8335 ibss.control_port =
8336 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8337
5336fa88
SW		 8338 ibss.userspace_handles_dfs =
8339 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8340
4c476991 8341 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8342 if (err)
b47f610b 8343 kzfree(connkeys);
04a773ad
JB		 8344 return err;
8345}
8346
8347static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8348{
4c476991
JB		 8349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8350 struct net_device *dev = info->user_ptr[1];
04a773ad 8351
4c476991
JB		 8352 if (!rdev->ops->leave_ibss)
8353 return -EOPNOTSUPP;
04a773ad 8354
4c476991
JB		 8355 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8356 return -EOPNOTSUPP;
04a773ad 8357
4c476991 8358 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8359}
8360
f4e583c8
AQ		 8361static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8362{
8363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8364 struct net_device *dev = info->user_ptr[1];
57fbcce3 8365 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8366 u32 nla_rate;
8367 int err;
8368
8369 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8370 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8371 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8372 return -EOPNOTSUPP;
8373
8374 if (!rdev->ops->set_mcast_rate)
8375 return -EOPNOTSUPP;
8376
8377 memset(mcast_rate, 0, sizeof(mcast_rate));
8378
8379 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8380 return -EINVAL;
8381
8382 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8383 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8384 return -EINVAL;
8385
a1056b1b 8386 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8387
8388 return err;
8389}
8390
ad7e718c
JB		 8391static struct sk_buff *
8392__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8393 struct wireless_dev *wdev, int approxlen,
8394 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8395 enum nl80211_attrs attr,
8396 const struct nl80211_vendor_cmd_info *info,
8397 gfp_t gfp)
ad7e718c
JB		 8398{
8399 struct sk_buff *skb;
8400 void *hdr;
8401 struct nlattr *data;
8402
8403 skb = nlmsg_new(approxlen + 100, gfp);
8404 if (!skb)
8405 return NULL;
8406
8407 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8408 if (!hdr) {
8409 kfree_skb(skb);
8410 return NULL;
8411 }
8412
8413 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8414 goto nla_put_failure;
567ffc35
JB		 8415
8416 if (info) {
8417 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8418 info->vendor_id))
8419 goto nla_put_failure;
8420 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8421 info->subcmd))
8422 goto nla_put_failure;
8423 }
8424
6c09e791 8425 if (wdev) {
2dad624e
ND		 8426 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8427 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8428 goto nla_put_failure;
8429 if (wdev->netdev &&
8430 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8431 wdev->netdev->ifindex))
8432 goto nla_put_failure;
8433 }
8434
ad7e718c 8435 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8436 if (!data)
8437 goto nla_put_failure;
ad7e718c
JB		 8438
8439 ((void **)skb->cb)[0] = rdev;
8440 ((void **)skb->cb)[1] = hdr;
8441 ((void **)skb->cb)[2] = data;
8442
8443 return skb;
8444
8445 nla_put_failure:
8446 kfree_skb(skb);
8447 return NULL;
8448}
f4e583c8 8449
e03ad6ea 8450struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8451 struct wireless_dev *wdev,
e03ad6ea
JB		 8452 enum nl80211_commands cmd,
8453 enum nl80211_attrs attr,
8454 int vendor_event_idx,
8455 int approxlen, gfp_t gfp)
8456{
f26cbf40 8457 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8458 const struct nl80211_vendor_cmd_info *info;
8459
8460 switch (cmd) {
8461 case NL80211_CMD_TESTMODE:
8462 if (WARN_ON(vendor_event_idx != -1))
8463 return NULL;
8464 info = NULL;
8465 break;
8466 case NL80211_CMD_VENDOR:
8467 if (WARN_ON(vendor_event_idx < 0 ||
8468 vendor_event_idx >= wiphy->n_vendor_events))
8469 return NULL;
8470 info = &wiphy->vendor_events[vendor_event_idx];
8471 break;
8472 default:
8473 WARN_ON(1);
8474 return NULL;
8475 }
8476
6c09e791 8477 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8478 cmd, attr, info, gfp);
8479}
8480EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8481
8482void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8483{
8484 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8485 void *hdr = ((void **)skb->cb)[1];
8486 struct nlattr *data = ((void **)skb->cb)[2];
8487 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8488
bd8c78e7
JB		 8489 /* clear CB data for netlink core to own from now on */
8490 memset(skb->cb, 0, sizeof(skb->cb));
8491
e03ad6ea
JB		 8492 nla_nest_end(skb, data);
8493 genlmsg_end(skb, hdr);
8494
8495 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8496 mcgrp = NL80211_MCGRP_VENDOR;
8497
8498 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8499 mcgrp, gfp);
8500}
8501EXPORT_SYMBOL(__cfg80211_send_event_skb);
8502
aff89a9b 8503#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8504static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8505{
4c476991 8506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8507 struct wireless_dev *wdev =
8508 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8509 int err;
8510
fc73f11f
DS		 8511 if (!rdev->ops->testmode_cmd)
8512 return -EOPNOTSUPP;
8513
8514 if (IS_ERR(wdev)) {
8515 err = PTR_ERR(wdev);
8516 if (err != -EINVAL)
8517 return err;
8518 wdev = NULL;
8519 } else if (wdev->wiphy != &rdev->wiphy) {
8520 return -EINVAL;
8521 }
8522
aff89a9b
JB		 8523 if (!info->attrs[NL80211_ATTR_TESTDATA])
8524 return -EINVAL;
8525
ad7e718c 8526 rdev->cur_cmd_info = info;
fc73f11f 8527 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8528 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8529 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8530 rdev->cur_cmd_info = NULL;
aff89a9b 8531
aff89a9b
JB		 8532 return err;
8533}
8534
71063f0e
WYG		 8535static int nl80211_testmode_dump(struct sk_buff *skb,
8536 struct netlink_callback *cb)
8537{
00918d33 8538 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8539 int err;
8540 long phy_idx;
8541 void *data = NULL;
8542 int data_len = 0;
8543
5fe231e8
JB		 8544 rtnl_lock();
8545
71063f0e
WYG		 8546 if (cb->args[0]) {
8547 /*
8548 * 0 is a valid index, but not valid for args[0],
8549 * so we need to offset by 1.
8550 */
8551 phy_idx = cb->args[0] - 1;
8552 } else {
c90c39da
JB		 8553 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8554
71063f0e 8555 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 8556 attrbuf, nl80211_fam.maxattr, nl80211_policy);
71063f0e 8557 if (err)
5fe231e8 8558 goto out_err;
00918d33 8559
c90c39da 8560 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
2bd7e35d 8561 if (IS_ERR(rdev)) {
5fe231e8
JB		 8562 err = PTR_ERR(rdev);
8563 goto out_err;
00918d33 8564 }
2bd7e35d
JB		 8565 phy_idx = rdev->wiphy_idx;
8566 rdev = NULL;
2bd7e35d 8567
c90c39da
JB		 8568 if (attrbuf[NL80211_ATTR_TESTDATA])
8569 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
71063f0e
WYG		 8570 }
8571
8572 if (cb->args[1]) {
8573 data = nla_data((void *)cb->args[1]);
8574 data_len = nla_len((void *)cb->args[1]);
8575 }
8576
00918d33
JB		 8577 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8578 if (!rdev) {
5fe231e8
JB		 8579 err = -ENOENT;
8580 goto out_err;
71063f0e 8581 }
71063f0e 8582
00918d33 8583 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8584 err = -EOPNOTSUPP;
8585 goto out_err;
8586 }
8587
8588 while (1) {
15e47304 8589 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8590 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8591 NL80211_CMD_TESTMODE);
8592 struct nlattr *tmdata;
8593
cb35fba3
DC		 8594 if (!hdr)
8595 break;
8596
9360ffd1 8597 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8598 genlmsg_cancel(skb, hdr);
8599 break;
8600 }
8601
8602 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8603 if (!tmdata) {
8604 genlmsg_cancel(skb, hdr);
8605 break;
8606 }
e35e4d28 8607 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8608 nla_nest_end(skb, tmdata);
8609
8610 if (err == -ENOBUFS || err == -ENOENT) {
8611 genlmsg_cancel(skb, hdr);
8612 break;
8613 } else if (err) {
8614 genlmsg_cancel(skb, hdr);
8615 goto out_err;
8616 }
8617
8618 genlmsg_end(skb, hdr);
8619 }
8620
8621 err = skb->len;
8622 /* see above */
8623 cb->args[0] = phy_idx + 1;
8624 out_err:
5fe231e8 8625 rtnl_unlock();
71063f0e
WYG		 8626 return err;
8627}
aff89a9b
JB		 8628#endif
8629
b23aa676
SO		 8630static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8631{
4c476991
JB		 8632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8633 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8634 struct cfg80211_connect_params connect;
8635 struct wiphy *wiphy;
fffd0934 8636 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8637 int err;
8638
8639 memset(&connect, 0, sizeof(connect));
8640
8641 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8642 return -EINVAL;
8643
8644 if (!info->attrs[NL80211_ATTR_SSID] ||
8645 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8646 return -EINVAL;
8647
8648 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8649 connect.auth_type =
8650 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8651 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8652 NL80211_CMD_CONNECT))
b23aa676
SO		 8653 return -EINVAL;
8654 } else
8655 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8656
8657 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8658
c0692b8f 8659 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8660 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8661 if (err)
8662 return err;
b23aa676 8663
074ac8df 8664 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8665 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8666 return -EOPNOTSUPP;
b23aa676 8667
79c97e97 8668 wiphy = &rdev->wiphy;
b23aa676 8669
4486ea98
BS		 8670 connect.bg_scan_period = -1;
8671 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8672 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8673 connect.bg_scan_period =
8674 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8675 }
8676
b23aa676
SO		 8677 if (info->attrs[NL80211_ATTR_MAC])
8678 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8679 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8680 connect.bssid_hint =
8681 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8682 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8683 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8684
8685 if (info->attrs[NL80211_ATTR_IE]) {
8686 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8687 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8688 }
8689
cee00a95
JM		 8690 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8691 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8692 if (connect.mfp != NL80211_MFP_REQUIRED &&
8693 connect.mfp != NL80211_MFP_NO)
8694 return -EINVAL;
8695 } else {
8696 connect.mfp = NL80211_MFP_NO;
8697 }
8698
ba6fbacf
JM		 8699 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8700 connect.prev_bssid =
8701 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8702
b23aa676 8703 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8704 connect.channel = nl80211_get_valid_chan(
8705 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8706 if (!connect.channel)
1df4a510
JM		 8707 return -EINVAL;
8708 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8709 connect.channel_hint = nl80211_get_valid_chan(
8710 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8711 if (!connect.channel_hint)
4c476991 8712 return -EINVAL;
b23aa676
SO		 8713 }
8714
fffd0934
JB		 8715 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8716 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8717 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8718 if (IS_ERR(connkeys))
8719 return PTR_ERR(connkeys);
fffd0934
JB		 8720 }
8721
7e7c8926
BG		 8722 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8723 connect.flags |= ASSOC_REQ_DISABLE_HT;
8724
8725 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8726 memcpy(&connect.ht_capa_mask,
8727 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8728 sizeof(connect.ht_capa_mask));
8729
8730 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8731 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8732 kzfree(connkeys);
7e7c8926 8733 return -EINVAL;
b4e4f47e 8734 }
7e7c8926
BG		 8735 memcpy(&connect.ht_capa,
8736 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8737 sizeof(connect.ht_capa));
8738 }
8739
ee2aca34
JB		 8740 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8741 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8742
8743 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8744 memcpy(&connect.vht_capa_mask,
8745 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8746 sizeof(connect.vht_capa_mask));
8747
8748 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8749 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8750 kzfree(connkeys);
ee2aca34
JB		 8751 return -EINVAL;
8752 }
8753 memcpy(&connect.vht_capa,
8754 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8755 sizeof(connect.vht_capa));
8756 }
8757
bab5ab7d 8758 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8759 if (!((rdev->wiphy.features &
8760 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8761 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8762 !wiphy_ext_feature_isset(&rdev->wiphy,
8763 NL80211_EXT_FEATURE_RRM)) {
707554b4 8764 kzfree(connkeys);
bab5ab7d 8765 return -EINVAL;
707554b4 8766 }
bab5ab7d
AK		 8767 connect.flags |= ASSOC_REQ_USE_RRM;
8768 }
8769
34d50519 8770 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8771 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8772 kzfree(connkeys);
8773 return -EOPNOTSUPP;
8774 }
8775
38de03d2
AS		 8776 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8777 /* bss selection makes no sense if bssid is set */
8778 if (connect.bssid) {
8779 kzfree(connkeys);
8780 return -EINVAL;
8781 }
8782
8783 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8784 wiphy, &connect.bss_select);
8785 if (err) {
8786 kzfree(connkeys);
8787 return err;
8788 }
8789 }
8790
83739b03 8791 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8792 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8793 connect.prev_bssid);
83739b03 8794 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8795 if (err)
b47f610b 8796 kzfree(connkeys);
b23aa676
SO		 8797 return err;
8798}
8799
088e8df8 8800static int nl80211_update_connect_params(struct sk_buff *skb,
8801 struct genl_info *info)
8802{
8803 struct cfg80211_connect_params connect = {};
8804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8805 struct net_device *dev = info->user_ptr[1];
8806 struct wireless_dev *wdev = dev->ieee80211_ptr;
8807 u32 changed = 0;
8808 int ret;
8809
8810 if (!rdev->ops->update_connect_params)
8811 return -EOPNOTSUPP;
8812
8813 if (info->attrs[NL80211_ATTR_IE]) {
8814 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8815 return -EINVAL;
8816 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8817 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8818 changed |= UPDATE_ASSOC_IES;
8819 }
8820
8821 wdev_lock(dev->ieee80211_ptr);
8822 if (!wdev->current_bss)
8823 ret = -ENOLINK;
8824 else
8825 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
8826 wdev_unlock(dev->ieee80211_ptr);
8827
8828 return ret;
8829}
8830
b23aa676
SO		 8831static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8832{
4c476991
JB		 8833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8834 struct net_device *dev = info->user_ptr[1];
b23aa676 8835 u16 reason;
83739b03 8836 int ret;
b23aa676
SO		 8837
8838 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8839 reason = WLAN_REASON_DEAUTH_LEAVING;
8840 else
8841 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8842
8843 if (reason == 0)
8844 return -EINVAL;
8845
074ac8df 8846 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8847 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8848 return -EOPNOTSUPP;
b23aa676 8849
83739b03
JB		 8850 wdev_lock(dev->ieee80211_ptr);
8851 ret = cfg80211_disconnect(rdev, dev, reason, true);
8852 wdev_unlock(dev->ieee80211_ptr);
8853 return ret;
b23aa676
SO		 8854}
8855
463d0183
JB		 8856static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8857{
4c476991 8858 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8859 struct net *net;
8860 int err;
463d0183 8861
4b681c82
VK		 8862 if (info->attrs[NL80211_ATTR_PID]) {
8863 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8864
8865 net = get_net_ns_by_pid(pid);
8866 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8867 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8868
4b681c82
VK		 8869 net = get_net_ns_by_fd(fd);
8870 } else {
8871 return -EINVAL;
8872 }
463d0183 8873
4c476991
JB		 8874 if (IS_ERR(net))
8875 return PTR_ERR(net);
463d0183
JB		 8876
8877 err = 0;
8878
8879 /* check if anything to do */
4c476991
JB		 8880 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8881 err = cfg80211_switch_netns(rdev, net);
463d0183 8882
463d0183 8883 put_net(net);
463d0183
JB		 8884 return err;
8885}
8886
67fbb16b
SO		 8887static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8888{
4c476991 8889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8890 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8891 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8892 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8893 struct cfg80211_pmksa pmksa;
8894
8895 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8896
8897 if (!info->attrs[NL80211_ATTR_MAC])
8898 return -EINVAL;
8899
8900 if (!info->attrs[NL80211_ATTR_PMKID])
8901 return -EINVAL;
8902
67fbb16b
SO		 8903 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8904 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8905
074ac8df 8906 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8907 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8908 return -EOPNOTSUPP;
67fbb16b
SO		 8909
8910 switch (info->genlhdr->cmd) {
8911 case NL80211_CMD_SET_PMKSA:
8912 rdev_ops = rdev->ops->set_pmksa;
8913 break;
8914 case NL80211_CMD_DEL_PMKSA:
8915 rdev_ops = rdev->ops->del_pmksa;
8916 break;
8917 default:
8918 WARN_ON(1);
8919 break;
8920 }
8921
4c476991
JB		 8922 if (!rdev_ops)
8923 return -EOPNOTSUPP;
67fbb16b 8924
4c476991 8925 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8926}
8927
8928static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8929{
4c476991
JB		 8930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8931 struct net_device *dev = info->user_ptr[1];
67fbb16b 8932
074ac8df 8933 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8934 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8935 return -EOPNOTSUPP;
67fbb16b 8936
4c476991
JB		 8937 if (!rdev->ops->flush_pmksa)
8938 return -EOPNOTSUPP;
67fbb16b 8939
e35e4d28 8940 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8941}
8942
109086ce
AN		 8943static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8944{
8945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8946 struct net_device *dev = info->user_ptr[1];
8947 u8 action_code, dialog_token;
df942e7b 8948 u32 peer_capability = 0;
109086ce
AN		 8949 u16 status_code;
8950 u8 *peer;
31fa97c5 8951 bool initiator;
109086ce
AN		 8952
8953 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8954 !rdev->ops->tdls_mgmt)
8955 return -EOPNOTSUPP;
8956
8957 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8958 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8959 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8960 !info->attrs[NL80211_ATTR_IE] ||
8961 !info->attrs[NL80211_ATTR_MAC])
8962 return -EINVAL;
8963
8964 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8965 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8966 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8967 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8968 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8969 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8970 peer_capability =
8971 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8972
e35e4d28 8973 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8974 dialog_token, status_code, peer_capability,
31fa97c5 8975 initiator,
e35e4d28
HG		 8976 nla_data(info->attrs[NL80211_ATTR_IE]),
8977 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8978}
8979
8980static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8981{
8982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8983 struct net_device *dev = info->user_ptr[1];
8984 enum nl80211_tdls_operation operation;
8985 u8 *peer;
8986
8987 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8988 !rdev->ops->tdls_oper)
8989 return -EOPNOTSUPP;
8990
8991 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8992 !info->attrs[NL80211_ATTR_MAC])
8993 return -EINVAL;
8994
8995 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8996 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8997
e35e4d28 8998 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8999}
9000
9588bbd5
JM		 9001static int nl80211_remain_on_channel(struct sk_buff *skb,
9002 struct genl_info *info)
9003{
4c476991 9004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9005 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9006 struct cfg80211_chan_def chandef;
9588bbd5
JM		 9007 struct sk_buff *msg;
9008 void *hdr;
9009 u64 cookie;
683b6d3b 9010 u32 duration;
9588bbd5
JM		 9011 int err;
9012
9013 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9014 !info->attrs[NL80211_ATTR_DURATION])
9015 return -EINVAL;
9016
9017 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9018
ebf348fc
JB		 9019 if (!rdev->ops->remain_on_channel ||
9020 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9021 return -EOPNOTSUPP;
9022
9588bbd5 9023 /*
ebf348fc
JB		 9024 * We should be on that channel for at least a minimum amount of
9025 * time (10ms) but no longer than the driver supports.
9588bbd5 9026 */
ebf348fc 9027 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 9028 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 9029 return -EINVAL;
9030
683b6d3b
JB		 9031 err = nl80211_parse_chandef(rdev, info, &chandef);
9032 if (err)
9033 return err;
9588bbd5
JM		 9034
9035 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9036 if (!msg)
9037 return -ENOMEM;
9588bbd5 9038
15e47304 9039 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 9040 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 9041 if (!hdr) {
9042 err = -ENOBUFS;
9588bbd5
JM		 9043 goto free_msg;
9044 }
9045
683b6d3b
JB		 9046 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9047 duration, &cookie);
9588bbd5
JM		 9048
9049 if (err)
9050 goto free_msg;
9051
2dad624e
ND		 9052 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9053 NL80211_ATTR_PAD))
9360ffd1 9054 goto nla_put_failure;
9588bbd5
JM		 9055
9056 genlmsg_end(msg, hdr);
4c476991
JB		 9057
9058 return genlmsg_reply(msg, info);
9588bbd5
JM		 9059
9060 nla_put_failure:
9061 err = -ENOBUFS;
9062 free_msg:
9063 nlmsg_free(msg);
9588bbd5
JM		 9064 return err;
9065}
9066
9067static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9068 struct genl_info *info)
9069{
4c476991 9070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9071 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 9072 u64 cookie;
9588bbd5
JM		 9073
9074 if (!info->attrs[NL80211_ATTR_COOKIE])
9075 return -EINVAL;
9076
4c476991
JB		 9077 if (!rdev->ops->cancel_remain_on_channel)
9078 return -EOPNOTSUPP;
9588bbd5 9079
9588bbd5
JM		 9080 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9081
e35e4d28 9082 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 9083}
9084
13ae75b1
JM		 9085static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9086 struct genl_info *info)
9087{
13ae75b1 9088 struct cfg80211_bitrate_mask mask;
a7c7fbff 9089 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9090 struct net_device *dev = info->user_ptr[1];
a7c7fbff 9091 int err;
13ae75b1 9092
4c476991
JB		 9093 if (!rdev->ops->set_bitrate_mask)
9094 return -EOPNOTSUPP;
13ae75b1 9095
a7c7fbff
PK		 9096 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9097 if (err)
9098 return err;
13ae75b1 9099
e35e4d28 9100 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9101}
9102
2e161f78 9103static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9104{
4c476991 9105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9106 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9107 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9108
9109 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9110 return -EINVAL;
9111
2e161f78
JB		 9112 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9113 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9114
71bbc994
JB		 9115 switch (wdev->iftype) {
9116 case NL80211_IFTYPE_STATION:
9117 case NL80211_IFTYPE_ADHOC:
9118 case NL80211_IFTYPE_P2P_CLIENT:
9119 case NL80211_IFTYPE_AP:
9120 case NL80211_IFTYPE_AP_VLAN:
9121 case NL80211_IFTYPE_MESH_POINT:
9122 case NL80211_IFTYPE_P2P_GO:
98104fde 9123 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9124 break;
cb3b7d87 9125 case NL80211_IFTYPE_NAN:
71bbc994 9126 default:
4c476991 9127 return -EOPNOTSUPP;
71bbc994 9128 }
026331c4
JM		 9129
9130 /* not much point in registering if we can't reply */
4c476991
JB		 9131 if (!rdev->ops->mgmt_tx)
9132 return -EOPNOTSUPP;
026331c4 9133
15e47304 9134 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9135 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9136 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9137}
9138
2e161f78 9139static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9140{
4c476991 9141 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9142 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9143 struct cfg80211_chan_def chandef;
026331c4 9144 int err;
d64d373f 9145 void *hdr = NULL;
026331c4 9146 u64 cookie;
e247bd90 9147 struct sk_buff *msg = NULL;
b176e629
AO		 9148 struct cfg80211_mgmt_tx_params params = {
9149 .dont_wait_for_ack =
9150 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9151 };
026331c4 9152
683b6d3b 9153 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9154 return -EINVAL;
9155
4c476991
JB		 9156 if (!rdev->ops->mgmt_tx)
9157 return -EOPNOTSUPP;
026331c4 9158
71bbc994 9159 switch (wdev->iftype) {
ea141b75
AQ		 9160 case NL80211_IFTYPE_P2P_DEVICE:
9161 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9162 return -EINVAL;
71bbc994
JB		 9163 case NL80211_IFTYPE_STATION:
9164 case NL80211_IFTYPE_ADHOC:
9165 case NL80211_IFTYPE_P2P_CLIENT:
9166 case NL80211_IFTYPE_AP:
9167 case NL80211_IFTYPE_AP_VLAN:
9168 case NL80211_IFTYPE_MESH_POINT:
9169 case NL80211_IFTYPE_P2P_GO:
9170 break;
cb3b7d87 9171 case NL80211_IFTYPE_NAN:
71bbc994 9172 default:
4c476991 9173 return -EOPNOTSUPP;
71bbc994 9174 }
026331c4 9175
f7ca38df 9176 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9177 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9178 return -EINVAL;
b176e629 9179 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9180
9181 /*
9182 * We should wait on the channel for at least a minimum amount
9183 * of time (10ms) but no longer than the driver supports.
9184 */
b176e629
AO		 9185 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9186 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9187 return -EINVAL;
f7ca38df
JB		 9188 }
9189
b176e629 9190 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9191
b176e629 9192 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9193 return -EINVAL;
9194
b176e629 9195 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9196
ea141b75
AQ		 9197 /* get the channel if any has been specified, otherwise pass NULL to
9198 * the driver. The latter will use the current one
9199 */
9200 chandef.chan = NULL;
9201 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9202 err = nl80211_parse_chandef(rdev, info, &chandef);
9203 if (err)
9204 return err;
9205 }
9206
b176e629 9207 if (!chandef.chan && params.offchan)
ea141b75 9208 return -EINVAL;
026331c4 9209
34d22ce2
AO		 9210 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9211 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9212
9213 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9214 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9215 int i;
9216
9217 if (len % sizeof(u16))
9218 return -EINVAL;
9219
9220 params.n_csa_offsets = len / sizeof(u16);
9221 params.csa_offsets =
9222 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9223
9224 /* check that all the offsets fit the frame */
9225 for (i = 0; i < params.n_csa_offsets; i++) {
9226 if (params.csa_offsets[i] >= params.len)
9227 return -EINVAL;
9228 }
9229 }
9230
b176e629 9231 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9232 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9233 if (!msg)
9234 return -ENOMEM;
026331c4 9235
15e47304 9236 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9237 NL80211_CMD_FRAME);
cb35fba3
DC		 9238 if (!hdr) {
9239 err = -ENOBUFS;
e247bd90
JB		 9240 goto free_msg;
9241 }
026331c4 9242 }
e247bd90 9243
b176e629
AO		 9244 params.chan = chandef.chan;
9245 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9246 if (err)
9247 goto free_msg;
9248
e247bd90 9249 if (msg) {
2dad624e
ND		 9250 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9251 NL80211_ATTR_PAD))
9360ffd1 9252 goto nla_put_failure;
026331c4 9253
e247bd90
JB		 9254 genlmsg_end(msg, hdr);
9255 return genlmsg_reply(msg, info);
9256 }
9257
9258 return 0;
026331c4
JM		 9259
9260 nla_put_failure:
9261 err = -ENOBUFS;
9262 free_msg:
9263 nlmsg_free(msg);
026331c4
JM		 9264 return err;
9265}
9266
f7ca38df
JB		 9267static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9268{
9269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9270 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9271 u64 cookie;
9272
9273 if (!info->attrs[NL80211_ATTR_COOKIE])
9274 return -EINVAL;
9275
9276 if (!rdev->ops->mgmt_tx_cancel_wait)
9277 return -EOPNOTSUPP;
9278
71bbc994
JB		 9279 switch (wdev->iftype) {
9280 case NL80211_IFTYPE_STATION:
9281 case NL80211_IFTYPE_ADHOC:
9282 case NL80211_IFTYPE_P2P_CLIENT:
9283 case NL80211_IFTYPE_AP:
9284 case NL80211_IFTYPE_AP_VLAN:
9285 case NL80211_IFTYPE_P2P_GO:
98104fde 9286 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9287 break;
cb3b7d87 9288 case NL80211_IFTYPE_NAN:
71bbc994 9289 default:
f7ca38df 9290 return -EOPNOTSUPP;
71bbc994 9291 }
f7ca38df
JB		 9292
9293 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9294
e35e4d28 9295 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9296}
9297
ffb9eb3d
KV		 9298static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9299{
4c476991 9300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9301 struct wireless_dev *wdev;
4c476991 9302 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9303 u8 ps_state;
9304 bool state;
9305 int err;
9306
4c476991
JB		 9307 if (!info->attrs[NL80211_ATTR_PS_STATE])
9308 return -EINVAL;
ffb9eb3d
KV		 9309
9310 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9311
4c476991
JB		 9312 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9313 return -EINVAL;
ffb9eb3d
KV		 9314
9315 wdev = dev->ieee80211_ptr;
9316
4c476991
JB		 9317 if (!rdev->ops->set_power_mgmt)
9318 return -EOPNOTSUPP;
ffb9eb3d
KV		 9319
9320 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9321
9322 if (state == wdev->ps)
4c476991 9323 return 0;
ffb9eb3d 9324
e35e4d28 9325 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9326 if (!err)
9327 wdev->ps = state;
ffb9eb3d
KV		 9328 return err;
9329}
9330
9331static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9332{
4c476991 9333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9334 enum nl80211_ps_state ps_state;
9335 struct wireless_dev *wdev;
4c476991 9336 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9337 struct sk_buff *msg;
9338 void *hdr;
9339 int err;
9340
ffb9eb3d
KV		 9341 wdev = dev->ieee80211_ptr;
9342
4c476991
JB		 9343 if (!rdev->ops->set_power_mgmt)
9344 return -EOPNOTSUPP;
ffb9eb3d
KV		 9345
9346 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9347 if (!msg)
9348 return -ENOMEM;
ffb9eb3d 9349
15e47304 9350 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9351 NL80211_CMD_GET_POWER_SAVE);
9352 if (!hdr) {
4c476991 9353 err = -ENOBUFS;
ffb9eb3d
KV		 9354 goto free_msg;
9355 }
9356
9357 if (wdev->ps)
9358 ps_state = NL80211_PS_ENABLED;
9359 else
9360 ps_state = NL80211_PS_DISABLED;
9361
9360ffd1
DM		 9362 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9363 goto nla_put_failure;
ffb9eb3d
KV		 9364
9365 genlmsg_end(msg, hdr);
4c476991 9366 return genlmsg_reply(msg, info);
ffb9eb3d 9367
4c476991 9368 nla_put_failure:
ffb9eb3d 9369 err = -ENOBUFS;
4c476991 9370 free_msg:
ffb9eb3d 9371 nlmsg_free(msg);
ffb9eb3d
KV		 9372 return err;
9373}
9374
94e860f1
JB		 9375static const struct nla_policy
9376nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9377 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9378 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9379 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9380 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9381 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9382 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9383};
9384
84f10708 9385static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9386 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9387{
9388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9389 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9390 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9391
d9d8b019 9392 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9393 return -EINVAL;
9394
84f10708
TP		 9395 if (!rdev->ops->set_cqm_txe_config)
9396 return -EOPNOTSUPP;
9397
9398 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9399 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9400 return -EOPNOTSUPP;
9401
e35e4d28 9402 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9403}
9404
d6dc1a38
JO		 9405static int nl80211_set_cqm_rssi(struct genl_info *info,
9406 s32 threshold, u32 hysteresis)
9407{
4c476991 9408 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9409 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9410 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9411
9412 if (threshold > 0)
9413 return -EINVAL;
9414
1da5fcc8
JB		 9415 /* disabling - hysteresis should also be zero then */
9416 if (threshold == 0)
9417 hysteresis = 0;
d6dc1a38 9418
4c476991
JB		 9419 if (!rdev->ops->set_cqm_rssi_config)
9420 return -EOPNOTSUPP;
d6dc1a38 9421
074ac8df 9422 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9423 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9424 return -EOPNOTSUPP;
d6dc1a38 9425
e35e4d28 9426 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9427}
9428
9429static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9430{
9431 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9432 struct nlattr *cqm;
9433 int err;
9434
9435 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9436 if (!cqm)
9437 return -EINVAL;
d6dc1a38
JO		 9438
9439 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9440 nl80211_attr_cqm_policy);
9441 if (err)
1da5fcc8 9442 return err;
d6dc1a38
JO		 9443
9444 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9445 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9446 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9447 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9448
1da5fcc8
JB		 9449 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9450 }
9451
9452 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9453 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9454 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9455 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9456 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9457 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9458
9459 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9460 }
9461
9462 return -EINVAL;
d6dc1a38
JO		 9463}
9464
6e0bd6c3
RL		 9465static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9466{
9467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9468 struct net_device *dev = info->user_ptr[1];
9469 struct ocb_setup setup = {};
9470 int err;
9471
9472 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9473 if (err)
9474 return err;
9475
9476 return cfg80211_join_ocb(rdev, dev, &setup);
9477}
9478
9479static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9480{
9481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9482 struct net_device *dev = info->user_ptr[1];
9483
9484 return cfg80211_leave_ocb(rdev, dev);
9485}
9486
29cbe68c
JB		 9487static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9488{
9489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9490 struct net_device *dev = info->user_ptr[1];
9491 struct mesh_config cfg;
c80d545d 9492 struct mesh_setup setup;
29cbe68c
JB		 9493 int err;
9494
9495 /* start with default */
9496 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9497 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9498
24bdd9f4 9499 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9500 /* and parse parameters if given */
24bdd9f4 9501 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9502 if (err)
9503 return err;
9504 }
9505
9506 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9507 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9508 return -EINVAL;
9509
c80d545d
JC		 9510 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9511 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9512
4bb62344
CYY		 9513 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9514 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9515 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9516 return -EINVAL;
9517
9bdbf04d
MP		 9518 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9519 setup.beacon_interval =
9520 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 9521
0c317a02
PK		 9522 err = cfg80211_validate_beacon_int(rdev,
9523 NL80211_IFTYPE_MESH_POINT,
9524 setup.beacon_interval);
12d20fc9
PK		 9525 if (err)
9526 return err;
9bdbf04d
MP		 9527 }
9528
9529 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9530 setup.dtim_period =
9531 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9532 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9533 return -EINVAL;
9534 }
9535
c80d545d
JC		 9536 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9537 /* parse additional setup parameters if given */
9538 err = nl80211_parse_mesh_setup(info, &setup);
9539 if (err)
9540 return err;
9541 }
9542
d37bb18a
TP		 9543 if (setup.user_mpm)
9544 cfg.auto_open_plinks = false;
9545
cc1d2806 9546 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9547 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9548 if (err)
9549 return err;
cc1d2806
JB		 9550 } else {
9551 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9552 setup.chandef.chan = NULL;
cc1d2806
JB		 9553 }
9554
ffb3cf30
AN		 9555 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9556 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9557 int n_rates =
9558 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9559 struct ieee80211_supported_band *sband;
9560
9561 if (!setup.chandef.chan)
9562 return -EINVAL;
9563
9564 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9565
9566 err = ieee80211_get_ratemask(sband, rates, n_rates,
9567 &setup.basic_rates);
9568 if (err)
9569 return err;
9570 }
9571
8564e382
JB		 9572 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9573 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9574 if (err)
9575 return err;
9576
9577 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9578 &setup.beacon_rate);
9579 if (err)
9580 return err;
9581 }
9582
c80d545d 9583 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9584}
9585
9586static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9587{
9588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9589 struct net_device *dev = info->user_ptr[1];
9590
9591 return cfg80211_leave_mesh(rdev, dev);
9592}
9593
dfb89c56 9594#ifdef CONFIG_PM
bb92d199
AK		 9595static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9596 struct cfg80211_registered_device *rdev)
9597{
6abb9cb9 9598 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9599 struct nlattr *nl_pats, *nl_pat;
9600 int i, pat_len;
9601
6abb9cb9 9602 if (!wowlan->n_patterns)
bb92d199
AK		 9603 return 0;
9604
9605 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9606 if (!nl_pats)
9607 return -ENOBUFS;
9608
6abb9cb9 9609 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9610 nl_pat = nla_nest_start(msg, i + 1);
9611 if (!nl_pat)
9612 return -ENOBUFS;
6abb9cb9 9613 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9614 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9615 wowlan->patterns[i].mask) ||
50ac6607
AK		 9616 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9617 wowlan->patterns[i].pattern) ||
9618 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9619 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9620 return -ENOBUFS;
9621 nla_nest_end(msg, nl_pat);
9622 }
9623 nla_nest_end(msg, nl_pats);
9624
9625 return 0;
9626}
9627
2a0e047e
JB		 9628static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9629 struct cfg80211_wowlan_tcp *tcp)
9630{
9631 struct nlattr *nl_tcp;
9632
9633 if (!tcp)
9634 return 0;
9635
9636 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9637 if (!nl_tcp)
9638 return -ENOBUFS;
9639
930345ea
JB		 9640 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9641 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9642 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9643 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9644 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9645 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9646 tcp->payload_len, tcp->payload) ||
9647 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9648 tcp->data_interval) ||
9649 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9650 tcp->wake_len, tcp->wake_data) ||
9651 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9652 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9653 return -ENOBUFS;
9654
9655 if (tcp->payload_seq.len &&
9656 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9657 sizeof(tcp->payload_seq), &tcp->payload_seq))
9658 return -ENOBUFS;
9659
9660 if (tcp->payload_tok.len &&
9661 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9662 sizeof(tcp->payload_tok) + tcp->tokens_size,
9663 &tcp->payload_tok))
9664 return -ENOBUFS;
9665
e248ad30
JB		 9666 nla_nest_end(msg, nl_tcp);
9667
2a0e047e
JB		 9668 return 0;
9669}
9670
75453ccb
LC		 9671static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9672 struct cfg80211_sched_scan_request *req)
9673{
3b06d277 9674 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9675 int i;
9676
9677 if (!req)
9678 return 0;
9679
9680 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9681 if (!nd)
9682 return -ENOBUFS;
9683
3b06d277
AS		 9684 if (req->n_scan_plans == 1 &&
9685 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9686 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9687 return -ENOBUFS;
9688
21fea567
LC		 9689 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9690 return -ENOBUFS;
9691
75453ccb
LC		 9692 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9693 if (!freqs)
9694 return -ENOBUFS;
9695
53b18980
JB		 9696 for (i = 0; i < req->n_channels; i++) {
9697 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9698 return -ENOBUFS;
9699 }
75453ccb
LC		 9700
9701 nla_nest_end(msg, freqs);
9702
9703 if (req->n_match_sets) {
9704 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 9705 if (!matches)
9706 return -ENOBUFS;
9707
75453ccb
LC		 9708 for (i = 0; i < req->n_match_sets; i++) {
9709 match = nla_nest_start(msg, i);
76e1fb4b
JB		 9710 if (!match)
9711 return -ENOBUFS;
9712
53b18980
JB		 9713 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9714 req->match_sets[i].ssid.ssid_len,
9715 req->match_sets[i].ssid.ssid))
9716 return -ENOBUFS;
75453ccb
LC		 9717 nla_nest_end(msg, match);
9718 }
9719 nla_nest_end(msg, matches);
9720 }
9721
3b06d277
AS		 9722 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9723 if (!scan_plans)
9724 return -ENOBUFS;
9725
9726 for (i = 0; i < req->n_scan_plans; i++) {
9727 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 9728 if (!scan_plan)
9729 return -ENOBUFS;
9730
3b06d277
AS		 9731 if (!scan_plan ||
9732 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9733 req->scan_plans[i].interval) ||
9734 (req->scan_plans[i].iterations &&
9735 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9736 req->scan_plans[i].iterations)))
9737 return -ENOBUFS;
9738 nla_nest_end(msg, scan_plan);
9739 }
9740 nla_nest_end(msg, scan_plans);
9741
75453ccb
LC		 9742 nla_nest_end(msg, nd);
9743
9744 return 0;
9745}
9746
ff1b6e69
JB		 9747static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9748{
9749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9750 struct sk_buff *msg;
9751 void *hdr;
2a0e047e 9752 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9753
964dc9e2 9754 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9755 return -EOPNOTSUPP;
9756
6abb9cb9 9757 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9758 /* adjust size to have room for all the data */
6abb9cb9
JB		 9759 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9760 rdev->wiphy.wowlan_config->tcp->payload_len +
9761 rdev->wiphy.wowlan_config->tcp->wake_len +
9762 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9763 }
9764
9765 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9766 if (!msg)
9767 return -ENOMEM;
9768
15e47304 9769 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9770 NL80211_CMD_GET_WOWLAN);
9771 if (!hdr)
9772 goto nla_put_failure;
9773
6abb9cb9 9774 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9775 struct nlattr *nl_wowlan;
9776
9777 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9778 if (!nl_wowlan)
9779 goto nla_put_failure;
9780
6abb9cb9 9781 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9782 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9783 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9784 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9785 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9786 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9787 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9788 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9789 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9790 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9791 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9792 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9793 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9794 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9795 goto nla_put_failure;
2a0e047e 9796
bb92d199
AK		 9797 if (nl80211_send_wowlan_patterns(msg, rdev))
9798 goto nla_put_failure;
2a0e047e 9799
6abb9cb9
JB		 9800 if (nl80211_send_wowlan_tcp(msg,
9801 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9802 goto nla_put_failure;
75453ccb
LC		 9803
9804 if (nl80211_send_wowlan_nd(
9805 msg,
9806 rdev->wiphy.wowlan_config->nd_config))
9807 goto nla_put_failure;
2a0e047e 9808
ff1b6e69
JB		 9809 nla_nest_end(msg, nl_wowlan);
9810 }
9811
9812 genlmsg_end(msg, hdr);
9813 return genlmsg_reply(msg, info);
9814
9815nla_put_failure:
9816 nlmsg_free(msg);
9817 return -ENOBUFS;
9818}
9819
2a0e047e
JB		 9820static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9821 struct nlattr *attr,
9822 struct cfg80211_wowlan *trig)
9823{
9824 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9825 struct cfg80211_wowlan_tcp *cfg;
9826 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9827 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9828 u32 size;
9829 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9830 int err, port;
9831
964dc9e2 9832 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9833 return -EINVAL;
9834
bfe2c7b1
JB		 9835 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
9836 nl80211_wowlan_tcp_policy);
2a0e047e
JB		 9837 if (err)
9838 return err;
9839
9840 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9841 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9842 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9843 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9844 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9845 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9846 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9847 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9848 return -EINVAL;
9849
9850 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9851 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9852 return -EINVAL;
9853
9854 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9855 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9856 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9857 return -EINVAL;
9858
9859 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9860 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9861 return -EINVAL;
9862
9863 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9864 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9865 return -EINVAL;
9866
9867 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9868 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9869
9870 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9871 tokens_size = tokln - sizeof(*tok);
9872
9873 if (!tok->len || tokens_size % tok->len)
9874 return -EINVAL;
964dc9e2 9875 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9876 return -EINVAL;
964dc9e2 9877 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9878 return -EINVAL;
964dc9e2 9879 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9880 return -EINVAL;
964dc9e2 9881 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9882 return -EINVAL;
9883 if (tok->offset + tok->len > data_size)
9884 return -EINVAL;
9885 }
9886
9887 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9888 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9889 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9890 return -EINVAL;
9891 if (seq->len == 0 || seq->len > 4)
9892 return -EINVAL;
9893 if (seq->len + seq->offset > data_size)
9894 return -EINVAL;
9895 }
9896
9897 size = sizeof(*cfg);
9898 size += data_size;
9899 size += wake_size + wake_mask_size;
9900 size += tokens_size;
9901
9902 cfg = kzalloc(size, GFP_KERNEL);
9903 if (!cfg)
9904 return -ENOMEM;
67b61f6c
JB		 9905 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9906 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9907 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9908 ETH_ALEN);
9909 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9910 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9911 else
9912 port = 0;
9913#ifdef CONFIG_INET
9914 /* allocate a socket and port for it and use it */
9915 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9916 IPPROTO_TCP, &cfg->sock, 1);
9917 if (err) {
9918 kfree(cfg);
9919 return err;
9920 }
9921 if (inet_csk_get_port(cfg->sock->sk, port)) {
9922 sock_release(cfg->sock);
9923 kfree(cfg);
9924 return -EADDRINUSE;
9925 }
9926 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9927#else
9928 if (!port) {
9929 kfree(cfg);
9930 return -EINVAL;
9931 }
9932 cfg->src_port = port;
9933#endif
9934
9935 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9936 cfg->payload_len = data_size;
9937 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9938 memcpy((void *)cfg->payload,
9939 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9940 data_size);
9941 if (seq)
9942 cfg->payload_seq = *seq;
9943 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9944 cfg->wake_len = wake_size;
9945 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9946 memcpy((void *)cfg->wake_data,
9947 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9948 wake_size);
9949 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9950 data_size + wake_size;
9951 memcpy((void *)cfg->wake_mask,
9952 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9953 wake_mask_size);
9954 if (tok) {
9955 cfg->tokens_size = tokens_size;
9956 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9957 }
9958
9959 trig->tcp = cfg;
9960
9961 return 0;
9962}
9963
8cd4d456
LC		 9964static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9965 const struct wiphy_wowlan_support *wowlan,
9966 struct nlattr *attr,
9967 struct cfg80211_wowlan *trig)
9968{
9969 struct nlattr **tb;
9970 int err;
9971
9972 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9973 if (!tb)
9974 return -ENOMEM;
9975
9976 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9977 err = -EOPNOTSUPP;
9978 goto out;
9979 }
9980
bfe2c7b1 9981 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy);
8cd4d456
LC		 9982 if (err)
9983 goto out;
9984
ad2b26ab 9985 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9986 err = PTR_ERR_OR_ZERO(trig->nd_config);
9987 if (err)
9988 trig->nd_config = NULL;
9989
9990out:
9991 kfree(tb);
9992 return err;
9993}
9994
ff1b6e69
JB		 9995static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9996{
9997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9998 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9999 struct cfg80211_wowlan new_triggers = {};
ae33bd81 10000 struct cfg80211_wowlan *ntrig;
964dc9e2 10001 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 10002 int err, i;
6abb9cb9 10003 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 10004 bool regular = false;
ff1b6e69 10005
964dc9e2 10006 if (!wowlan)
ff1b6e69
JB		 10007 return -EOPNOTSUPP;
10008
ae33bd81
JB		 10009 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10010 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10011 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 10012 goto set_wakeup;
10013 }
ff1b6e69 10014
bfe2c7b1
JB		 10015 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10016 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10017 nl80211_wowlan_policy);
ff1b6e69
JB		 10018 if (err)
10019 return err;
10020
10021 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10022 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10023 return -EINVAL;
10024 new_triggers.any = true;
10025 }
10026
10027 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10028 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10029 return -EINVAL;
10030 new_triggers.disconnect = true;
98fc4386 10031 regular = true;
ff1b6e69
JB		 10032 }
10033
10034 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10035 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10036 return -EINVAL;
10037 new_triggers.magic_pkt = true;
98fc4386 10038 regular = true;
ff1b6e69
JB		 10039 }
10040
77dbbb13
JB		 10041 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10042 return -EINVAL;
10043
10044 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10045 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10046 return -EINVAL;
10047 new_triggers.gtk_rekey_failure = true;
98fc4386 10048 regular = true;
77dbbb13
JB		 10049 }
10050
10051 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10052 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10053 return -EINVAL;
10054 new_triggers.eap_identity_req = true;
98fc4386 10055 regular = true;
77dbbb13
JB		 10056 }
10057
10058 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10059 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10060 return -EINVAL;
10061 new_triggers.four_way_handshake = true;
98fc4386 10062 regular = true;
77dbbb13
JB		 10063 }
10064
10065 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10066 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10067 return -EINVAL;
10068 new_triggers.rfkill_release = true;
98fc4386 10069 regular = true;
77dbbb13
JB		 10070 }
10071
ff1b6e69
JB		 10072 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10073 struct nlattr *pat;
10074 int n_patterns = 0;
bb92d199 10075 int rem, pat_len, mask_len, pkt_offset;
50ac6607 10076 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 10077
98fc4386
JB		 10078 regular = true;
10079
ff1b6e69
JB		 10080 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10081 rem)
10082 n_patterns++;
10083 if (n_patterns > wowlan->n_patterns)
10084 return -EINVAL;
10085
10086 new_triggers.patterns = kcalloc(n_patterns,
10087 sizeof(new_triggers.patterns[0]),
10088 GFP_KERNEL);
10089 if (!new_triggers.patterns)
10090 return -ENOMEM;
10091
10092 new_triggers.n_patterns = n_patterns;
10093 i = 0;
10094
10095 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10096 rem) {
922bd80f
JB		 10097 u8 *mask_pat;
10098
bfe2c7b1
JB		 10099 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10100 NULL);
ff1b6e69 10101 err = -EINVAL;
50ac6607
AK		 10102 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10103 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 10104 goto error;
50ac6607 10105 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 10106 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 10107 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 10108 goto error;
10109 if (pat_len > wowlan->pattern_max_len ||
10110 pat_len < wowlan->pattern_min_len)
10111 goto error;
10112
50ac6607 10113 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 10114 pkt_offset = 0;
10115 else
10116 pkt_offset = nla_get_u32(
50ac6607 10117 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 10118 if (pkt_offset > wowlan->max_pkt_offset)
10119 goto error;
10120 new_triggers.patterns[i].pkt_offset = pkt_offset;
10121
922bd80f
JB		 10122 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10123 if (!mask_pat) {
ff1b6e69
JB		 10124 err = -ENOMEM;
10125 goto error;
10126 }
922bd80f
JB		 10127 new_triggers.patterns[i].mask = mask_pat;
10128 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 10129 mask_len);
922bd80f
JB		 10130 mask_pat += mask_len;
10131 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 10132 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 10133 memcpy(mask_pat,
50ac6607 10134 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 10135 pat_len);
10136 i++;
10137 }
10138 }
10139
2a0e047e 10140 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10141 regular = true;
2a0e047e
JB		 10142 err = nl80211_parse_wowlan_tcp(
10143 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10144 &new_triggers);
10145 if (err)
10146 goto error;
10147 }
10148
8cd4d456 10149 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10150 regular = true;
8cd4d456
LC		 10151 err = nl80211_parse_wowlan_nd(
10152 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10153 &new_triggers);
10154 if (err)
10155 goto error;
10156 }
10157
98fc4386
JB		 10158 /* The 'any' trigger means the device continues operating more or less
10159 * as in its normal operation mode and wakes up the host on most of the
10160 * normal interrupts (like packet RX, ...)
10161 * It therefore makes little sense to combine with the more constrained
10162 * wakeup trigger modes.
10163 */
10164 if (new_triggers.any && regular) {
10165 err = -EINVAL;
10166 goto error;
10167 }
10168
ae33bd81
JB		 10169 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10170 if (!ntrig) {
10171 err = -ENOMEM;
10172 goto error;
ff1b6e69 10173 }
ae33bd81 10174 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10175 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10176
ae33bd81 10177 set_wakeup:
6abb9cb9
JB		 10178 if (rdev->ops->set_wakeup &&
10179 prev_enabled != !!rdev->wiphy.wowlan_config)
10180 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10181
ff1b6e69
JB		 10182 return 0;
10183 error:
10184 for (i = 0; i < new_triggers.n_patterns; i++)
10185 kfree(new_triggers.patterns[i].mask);
10186 kfree(new_triggers.patterns);
2a0e047e
JB		 10187 if (new_triggers.tcp && new_triggers.tcp->sock)
10188 sock_release(new_triggers.tcp->sock);
10189 kfree(new_triggers.tcp);
e5dbe070 10190 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10191 return err;
10192}
dfb89c56 10193#endif
ff1b6e69 10194
be29b99a
AK		 10195static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10196 struct cfg80211_registered_device *rdev)
10197{
10198 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10199 int i, j, pat_len;
10200 struct cfg80211_coalesce_rules *rule;
10201
10202 if (!rdev->coalesce->n_rules)
10203 return 0;
10204
10205 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10206 if (!nl_rules)
10207 return -ENOBUFS;
10208
10209 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10210 nl_rule = nla_nest_start(msg, i + 1);
10211 if (!nl_rule)
10212 return -ENOBUFS;
10213
10214 rule = &rdev->coalesce->rules[i];
10215 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10216 rule->delay))
10217 return -ENOBUFS;
10218
10219 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10220 rule->condition))
10221 return -ENOBUFS;
10222
10223 nl_pats = nla_nest_start(msg,
10224 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10225 if (!nl_pats)
10226 return -ENOBUFS;
10227
10228 for (j = 0; j < rule->n_patterns; j++) {
10229 nl_pat = nla_nest_start(msg, j + 1);
10230 if (!nl_pat)
10231 return -ENOBUFS;
10232 pat_len = rule->patterns[j].pattern_len;
10233 if (nla_put(msg, NL80211_PKTPAT_MASK,
10234 DIV_ROUND_UP(pat_len, 8),
10235 rule->patterns[j].mask) ||
10236 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10237 rule->patterns[j].pattern) ||
10238 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10239 rule->patterns[j].pkt_offset))
10240 return -ENOBUFS;
10241 nla_nest_end(msg, nl_pat);
10242 }
10243 nla_nest_end(msg, nl_pats);
10244 nla_nest_end(msg, nl_rule);
10245 }
10246 nla_nest_end(msg, nl_rules);
10247
10248 return 0;
10249}
10250
10251static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10252{
10253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10254 struct sk_buff *msg;
10255 void *hdr;
10256
10257 if (!rdev->wiphy.coalesce)
10258 return -EOPNOTSUPP;
10259
10260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10261 if (!msg)
10262 return -ENOMEM;
10263
10264 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10265 NL80211_CMD_GET_COALESCE);
10266 if (!hdr)
10267 goto nla_put_failure;
10268
10269 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10270 goto nla_put_failure;
10271
10272 genlmsg_end(msg, hdr);
10273 return genlmsg_reply(msg, info);
10274
10275nla_put_failure:
10276 nlmsg_free(msg);
10277 return -ENOBUFS;
10278}
10279
10280void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10281{
10282 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10283 int i, j;
10284 struct cfg80211_coalesce_rules *rule;
10285
10286 if (!coalesce)
10287 return;
10288
10289 for (i = 0; i < coalesce->n_rules; i++) {
10290 rule = &coalesce->rules[i];
10291 for (j = 0; j < rule->n_patterns; j++)
10292 kfree(rule->patterns[j].mask);
10293 kfree(rule->patterns);
10294 }
10295 kfree(coalesce->rules);
10296 kfree(coalesce);
10297 rdev->coalesce = NULL;
10298}
10299
10300static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10301 struct nlattr *rule,
10302 struct cfg80211_coalesce_rules *new_rule)
10303{
10304 int err, i;
10305 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10306 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10307 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10308 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10309
bfe2c7b1
JB		 10310 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
10311 nl80211_coalesce_policy);
be29b99a
AK		 10312 if (err)
10313 return err;
10314
10315 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10316 new_rule->delay =
10317 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10318 if (new_rule->delay > coalesce->max_delay)
10319 return -EINVAL;
10320
10321 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10322 new_rule->condition =
10323 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10324 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10325 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10326 return -EINVAL;
10327
10328 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10329 return -EINVAL;
10330
10331 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10332 rem)
10333 n_patterns++;
10334 if (n_patterns > coalesce->n_patterns)
10335 return -EINVAL;
10336
10337 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10338 GFP_KERNEL);
10339 if (!new_rule->patterns)
10340 return -ENOMEM;
10341
10342 new_rule->n_patterns = n_patterns;
10343 i = 0;
10344
10345 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10346 rem) {
922bd80f
JB		 10347 u8 *mask_pat;
10348
bfe2c7b1 10349 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL);
be29b99a
AK		 10350 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10351 !pat_tb[NL80211_PKTPAT_PATTERN])
10352 return -EINVAL;
10353 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10354 mask_len = DIV_ROUND_UP(pat_len, 8);
10355 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10356 return -EINVAL;
10357 if (pat_len > coalesce->pattern_max_len ||
10358 pat_len < coalesce->pattern_min_len)
10359 return -EINVAL;
10360
10361 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10362 pkt_offset = 0;
10363 else
10364 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10365 if (pkt_offset > coalesce->max_pkt_offset)
10366 return -EINVAL;
10367 new_rule->patterns[i].pkt_offset = pkt_offset;
10368
922bd80f
JB		 10369 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10370 if (!mask_pat)
be29b99a 10371 return -ENOMEM;
922bd80f
JB		 10372
10373 new_rule->patterns[i].mask = mask_pat;
10374 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10375 mask_len);
10376
10377 mask_pat += mask_len;
10378 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10379 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10380 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10381 pat_len);
be29b99a
AK		 10382 i++;
10383 }
10384
10385 return 0;
10386}
10387
10388static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10389{
10390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10391 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10392 struct cfg80211_coalesce new_coalesce = {};
10393 struct cfg80211_coalesce *n_coalesce;
10394 int err, rem_rule, n_rules = 0, i, j;
10395 struct nlattr *rule;
10396 struct cfg80211_coalesce_rules *tmp_rule;
10397
10398 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10399 return -EOPNOTSUPP;
10400
10401 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10402 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10403 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10404 return 0;
10405 }
10406
10407 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10408 rem_rule)
10409 n_rules++;
10410 if (n_rules > coalesce->n_rules)
10411 return -EINVAL;
10412
10413 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10414 GFP_KERNEL);
10415 if (!new_coalesce.rules)
10416 return -ENOMEM;
10417
10418 new_coalesce.n_rules = n_rules;
10419 i = 0;
10420
10421 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10422 rem_rule) {
10423 err = nl80211_parse_coalesce_rule(rdev, rule,
10424 &new_coalesce.rules[i]);
10425 if (err)
10426 goto error;
10427
10428 i++;
10429 }
10430
a1056b1b 10431 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10432 if (err)
10433 goto error;
10434
10435 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10436 if (!n_coalesce) {
10437 err = -ENOMEM;
10438 goto error;
10439 }
10440 cfg80211_rdev_free_coalesce(rdev);
10441 rdev->coalesce = n_coalesce;
10442
10443 return 0;
10444error:
10445 for (i = 0; i < new_coalesce.n_rules; i++) {
10446 tmp_rule = &new_coalesce.rules[i];
10447 for (j = 0; j < tmp_rule->n_patterns; j++)
10448 kfree(tmp_rule->patterns[j].mask);
10449 kfree(tmp_rule->patterns);
10450 }
10451 kfree(new_coalesce.rules);
10452
10453 return err;
10454}
10455
e5497d76
JB		 10456static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10457{
10458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10459 struct net_device *dev = info->user_ptr[1];
10460 struct wireless_dev *wdev = dev->ieee80211_ptr;
10461 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10462 struct cfg80211_gtk_rekey_data rekey_data;
10463 int err;
10464
10465 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10466 return -EINVAL;
10467
bfe2c7b1
JB		 10468 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10469 info->attrs[NL80211_ATTR_REKEY_DATA],
10470 nl80211_rekey_policy);
e5497d76
JB		 10471 if (err)
10472 return err;
10473
10474 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10475 return -ERANGE;
10476 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10477 return -ERANGE;
10478 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10479 return -ERANGE;
10480
78f686ca
JB		 10481 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10482 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10483 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10484
10485 wdev_lock(wdev);
10486 if (!wdev->current_bss) {
10487 err = -ENOTCONN;
10488 goto out;
10489 }
10490
10491 if (!rdev->ops->set_rekey_data) {
10492 err = -EOPNOTSUPP;
10493 goto out;
10494 }
10495
e35e4d28 10496 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10497 out:
10498 wdev_unlock(wdev);
10499 return err;
10500}
10501
28946da7
JB		 10502static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10503 struct genl_info *info)
10504{
10505 struct net_device *dev = info->user_ptr[1];
10506 struct wireless_dev *wdev = dev->ieee80211_ptr;
10507
10508 if (wdev->iftype != NL80211_IFTYPE_AP &&
10509 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10510 return -EINVAL;
10511
15e47304 10512 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10513 return -EBUSY;
10514
15e47304 10515 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10516 return 0;
10517}
10518
7f6cf311
JB		 10519static int nl80211_probe_client(struct sk_buff *skb,
10520 struct genl_info *info)
10521{
10522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10523 struct net_device *dev = info->user_ptr[1];
10524 struct wireless_dev *wdev = dev->ieee80211_ptr;
10525 struct sk_buff *msg;
10526 void *hdr;
10527 const u8 *addr;
10528 u64 cookie;
10529 int err;
10530
10531 if (wdev->iftype != NL80211_IFTYPE_AP &&
10532 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10533 return -EOPNOTSUPP;
10534
10535 if (!info->attrs[NL80211_ATTR_MAC])
10536 return -EINVAL;
10537
10538 if (!rdev->ops->probe_client)
10539 return -EOPNOTSUPP;
10540
10541 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10542 if (!msg)
10543 return -ENOMEM;
10544
15e47304 10545 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10546 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10547 if (!hdr) {
10548 err = -ENOBUFS;
7f6cf311
JB		 10549 goto free_msg;
10550 }
10551
10552 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10553
e35e4d28 10554 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10555 if (err)
10556 goto free_msg;
10557
2dad624e
ND		 10558 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10559 NL80211_ATTR_PAD))
9360ffd1 10560 goto nla_put_failure;
7f6cf311
JB		 10561
10562 genlmsg_end(msg, hdr);
10563
10564 return genlmsg_reply(msg, info);
10565
10566 nla_put_failure:
10567 err = -ENOBUFS;
10568 free_msg:
10569 nlmsg_free(msg);
10570 return err;
10571}
10572
5e760230
JB		 10573static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10574{
10575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10576 struct cfg80211_beacon_registration *reg, *nreg;
10577 int rv;
5e760230
JB		 10578
10579 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10580 return -EOPNOTSUPP;
10581
37c73b5f
BG		 10582 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10583 if (!nreg)
10584 return -ENOMEM;
10585
10586 /* First, check if already registered. */
10587 spin_lock_bh(&rdev->beacon_registrations_lock);
10588 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10589 if (reg->nlportid == info->snd_portid) {
10590 rv = -EALREADY;
10591 goto out_err;
10592 }
10593 }
10594 /* Add it to the list */
10595 nreg->nlportid = info->snd_portid;
10596 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10597
37c73b5f 10598 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10599
10600 return 0;
37c73b5f
BG		 10601out_err:
10602 spin_unlock_bh(&rdev->beacon_registrations_lock);
10603 kfree(nreg);
10604 return rv;
5e760230
JB		 10605}
10606
98104fde
JB		 10607static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10608{
10609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10610 struct wireless_dev *wdev = info->user_ptr[1];
10611 int err;
10612
10613 if (!rdev->ops->start_p2p_device)
10614 return -EOPNOTSUPP;
10615
10616 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10617 return -EOPNOTSUPP;
10618
73c7da3d 10619 if (wdev_running(wdev))
98104fde
JB		 10620 return 0;
10621
b6a55015
LC		 10622 if (rfkill_blocked(rdev->rfkill))
10623 return -ERFKILL;
98104fde 10624
eeb126e9 10625 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10626 if (err)
10627 return err;
10628
73c7da3d 10629 wdev->is_running = true;
98104fde 10630 rdev->opencount++;
98104fde
JB		 10631
10632 return 0;
10633}
10634
10635static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10636{
10637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10638 struct wireless_dev *wdev = info->user_ptr[1];
10639
10640 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10641 return -EOPNOTSUPP;
10642
10643 if (!rdev->ops->stop_p2p_device)
10644 return -EOPNOTSUPP;
10645
f9f47529 10646 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10647
10648 return 0;
10649}
10650
cb3b7d87
AB		 10651static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
10652{
10653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10654 struct wireless_dev *wdev = info->user_ptr[1];
10655 struct cfg80211_nan_conf conf = {};
10656 int err;
10657
10658 if (wdev->iftype != NL80211_IFTYPE_NAN)
10659 return -EOPNOTSUPP;
10660
eeb04a96 10661 if (wdev_running(wdev))
cb3b7d87
AB		 10662 return -EEXIST;
10663
10664 if (rfkill_blocked(rdev->rfkill))
10665 return -ERFKILL;
10666
10667 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
10668 return -EINVAL;
10669
10670 if (!info->attrs[NL80211_ATTR_NAN_DUAL])
10671 return -EINVAL;
10672
10673 conf.master_pref =
10674 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10675 if (!conf.master_pref)
10676 return -EINVAL;
10677
10678 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
10679
10680 err = rdev_start_nan(rdev, wdev, &conf);
10681 if (err)
10682 return err;
10683
73c7da3d 10684 wdev->is_running = true;
cb3b7d87
AB		 10685 rdev->opencount++;
10686
10687 return 0;
10688}
10689
10690static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
10691{
10692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10693 struct wireless_dev *wdev = info->user_ptr[1];
10694
10695 if (wdev->iftype != NL80211_IFTYPE_NAN)
10696 return -EOPNOTSUPP;
10697
10698 cfg80211_stop_nan(rdev, wdev);
10699
10700 return 0;
10701}
10702
a442b761
AB		 10703static int validate_nan_filter(struct nlattr *filter_attr)
10704{
10705 struct nlattr *attr;
10706 int len = 0, n_entries = 0, rem;
10707
10708 nla_for_each_nested(attr, filter_attr, rem) {
10709 len += nla_len(attr);
10710 n_entries++;
10711 }
10712
10713 if (len >= U8_MAX)
10714 return -EINVAL;
10715
10716 return n_entries;
10717}
10718
10719static int handle_nan_filter(struct nlattr *attr_filter,
10720 struct cfg80211_nan_func *func,
10721 bool tx)
10722{
10723 struct nlattr *attr;
10724 int n_entries, rem, i;
10725 struct cfg80211_nan_func_filter *filter;
10726
10727 n_entries = validate_nan_filter(attr_filter);
10728 if (n_entries < 0)
10729 return n_entries;
10730
10731 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
10732
10733 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
10734 if (!filter)
10735 return -ENOMEM;
10736
10737 i = 0;
10738 nla_for_each_nested(attr, attr_filter, rem) {
b15ca182 10739 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
a442b761
AB		 10740 filter[i].len = nla_len(attr);
10741 i++;
10742 }
10743 if (tx) {
10744 func->num_tx_filters = n_entries;
10745 func->tx_filters = filter;
10746 } else {
10747 func->num_rx_filters = n_entries;
10748 func->rx_filters = filter;
10749 }
10750
10751 return 0;
10752}
10753
10754static int nl80211_nan_add_func(struct sk_buff *skb,
10755 struct genl_info *info)
10756{
10757 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10758 struct wireless_dev *wdev = info->user_ptr[1];
10759 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
10760 struct cfg80211_nan_func *func;
10761 struct sk_buff *msg = NULL;
10762 void *hdr = NULL;
10763 int err = 0;
10764
10765 if (wdev->iftype != NL80211_IFTYPE_NAN)
10766 return -EOPNOTSUPP;
10767
73c7da3d 10768 if (!wdev_running(wdev))
a442b761
AB		 10769 return -ENOTCONN;
10770
10771 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
10772 return -EINVAL;
10773
10774 if (wdev->owner_nlportid &&
10775 wdev->owner_nlportid != info->snd_portid)
10776 return -ENOTCONN;
10777
bfe2c7b1
JB		 10778 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
10779 info->attrs[NL80211_ATTR_NAN_FUNC],
10780 nl80211_nan_func_policy);
a442b761
AB		 10781 if (err)
10782 return err;
10783
10784 func = kzalloc(sizeof(*func), GFP_KERNEL);
10785 if (!func)
10786 return -ENOMEM;
10787
10788 func->cookie = wdev->wiphy->cookie_counter++;
10789
10790 if (!tb[NL80211_NAN_FUNC_TYPE] ||
10791 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
10792 err = -EINVAL;
10793 goto out;
10794 }
10795
10796
10797 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
10798
10799 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
10800 err = -EINVAL;
10801 goto out;
10802 }
10803
10804 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
10805 sizeof(func->service_id));
10806
10807 func->close_range =
10808 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
10809
10810 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
10811 func->serv_spec_info_len =
10812 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
10813 func->serv_spec_info =
10814 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
10815 func->serv_spec_info_len,
10816 GFP_KERNEL);
10817 if (!func->serv_spec_info) {
10818 err = -ENOMEM;
10819 goto out;
10820 }
10821 }
10822
10823 if (tb[NL80211_NAN_FUNC_TTL])
10824 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
10825
10826 switch (func->type) {
10827 case NL80211_NAN_FUNC_PUBLISH:
10828 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
10829 err = -EINVAL;
10830 goto out;
10831 }
10832
10833 func->publish_type =
10834 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
10835 func->publish_bcast =
10836 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
10837
10838 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
10839 func->publish_bcast) {
10840 err = -EINVAL;
10841 goto out;
10842 }
10843 break;
10844 case NL80211_NAN_FUNC_SUBSCRIBE:
10845 func->subscribe_active =
10846 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
10847 break;
10848 case NL80211_NAN_FUNC_FOLLOW_UP:
10849 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
10850 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
10851 err = -EINVAL;
10852 goto out;
10853 }
10854
10855 func->followup_id =
10856 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
10857 func->followup_reqid =
10858 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
10859 memcpy(func->followup_dest.addr,
10860 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
10861 sizeof(func->followup_dest.addr));
10862 if (func->ttl) {
10863 err = -EINVAL;
10864 goto out;
10865 }
10866 break;
10867 default:
10868 err = -EINVAL;
10869 goto out;
10870 }
10871
10872 if (tb[NL80211_NAN_FUNC_SRF]) {
10873 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
10874
bfe2c7b1
JB		 10875 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
10876 tb[NL80211_NAN_FUNC_SRF],
10877 nl80211_nan_srf_policy);
a442b761
AB		 10878 if (err)
10879 goto out;
10880
10881 func->srf_include =
10882 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
10883
10884 if (srf_tb[NL80211_NAN_SRF_BF]) {
10885 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
10886 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
10887 err = -EINVAL;
10888 goto out;
10889 }
10890
10891 func->srf_bf_len =
10892 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
10893 func->srf_bf =
10894 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
10895 func->srf_bf_len, GFP_KERNEL);
10896 if (!func->srf_bf) {
10897 err = -ENOMEM;
10898 goto out;
10899 }
10900
10901 func->srf_bf_idx =
10902 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
10903 } else {
10904 struct nlattr *attr, *mac_attr =
10905 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
10906 int n_entries, rem, i = 0;
10907
10908 if (!mac_attr) {
10909 err = -EINVAL;
10910 goto out;
10911 }
10912
10913 n_entries = validate_acl_mac_addrs(mac_attr);
10914 if (n_entries <= 0) {
10915 err = -EINVAL;
10916 goto out;
10917 }
10918
10919 func->srf_num_macs = n_entries;
10920 func->srf_macs =
10921 kzalloc(sizeof(*func->srf_macs) * n_entries,
10922 GFP_KERNEL);
10923 if (!func->srf_macs) {
10924 err = -ENOMEM;
10925 goto out;
10926 }
10927
10928 nla_for_each_nested(attr, mac_attr, rem)
10929 memcpy(func->srf_macs[i++].addr, nla_data(attr),
10930 sizeof(*func->srf_macs));
10931 }
10932 }
10933
10934 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
10935 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
10936 func, true);
10937 if (err)
10938 goto out;
10939 }
10940
10941 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
10942 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
10943 func, false);
10944 if (err)
10945 goto out;
10946 }
10947
10948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10949 if (!msg) {
10950 err = -ENOMEM;
10951 goto out;
10952 }
10953
10954 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10955 NL80211_CMD_ADD_NAN_FUNCTION);
10956 /* This can't really happen - we just allocated 4KB */
10957 if (WARN_ON(!hdr)) {
10958 err = -ENOMEM;
10959 goto out;
10960 }
10961
10962 err = rdev_add_nan_func(rdev, wdev, func);
10963out:
10964 if (err < 0) {
10965 cfg80211_free_nan_func(func);
10966 nlmsg_free(msg);
10967 return err;
10968 }
10969
10970 /* propagate the instance id and cookie to userspace */
10971 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
10972 NL80211_ATTR_PAD))
10973 goto nla_put_failure;
10974
10975 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
10976 if (!func_attr)
10977 goto nla_put_failure;
10978
10979 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
10980 func->instance_id))
10981 goto nla_put_failure;
10982
10983 nla_nest_end(msg, func_attr);
10984
10985 genlmsg_end(msg, hdr);
10986 return genlmsg_reply(msg, info);
10987
10988nla_put_failure:
10989 nlmsg_free(msg);
10990 return -ENOBUFS;
10991}
10992
10993static int nl80211_nan_del_func(struct sk_buff *skb,
10994 struct genl_info *info)
10995{
10996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10997 struct wireless_dev *wdev = info->user_ptr[1];
10998 u64 cookie;
10999
11000 if (wdev->iftype != NL80211_IFTYPE_NAN)
11001 return -EOPNOTSUPP;
11002
73c7da3d 11003 if (!wdev_running(wdev))
a442b761
AB		 11004 return -ENOTCONN;
11005
11006 if (!info->attrs[NL80211_ATTR_COOKIE])
11007 return -EINVAL;
11008
11009 if (wdev->owner_nlportid &&
11010 wdev->owner_nlportid != info->snd_portid)
11011 return -ENOTCONN;
11012
11013 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11014
11015 rdev_del_nan_func(rdev, wdev, cookie);
11016
11017 return 0;
11018}
11019
a5a9dcf2
AB		 11020static int nl80211_nan_change_config(struct sk_buff *skb,
11021 struct genl_info *info)
11022{
11023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11024 struct wireless_dev *wdev = info->user_ptr[1];
11025 struct cfg80211_nan_conf conf = {};
11026 u32 changed = 0;
11027
11028 if (wdev->iftype != NL80211_IFTYPE_NAN)
11029 return -EOPNOTSUPP;
11030
73c7da3d 11031 if (!wdev_running(wdev))
a5a9dcf2
AB		 11032 return -ENOTCONN;
11033
11034 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11035 conf.master_pref =
11036 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11037 if (conf.master_pref <= 1 || conf.master_pref == 255)
11038 return -EINVAL;
11039
11040 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11041 }
11042
11043 if (info->attrs[NL80211_ATTR_NAN_DUAL]) {
11044 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
11045 changed |= CFG80211_NAN_CONF_CHANGED_DUAL;
11046 }
11047
11048 if (!changed)
11049 return -EINVAL;
11050
11051 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11052}
11053
50bcd31d
AB		 11054void cfg80211_nan_match(struct wireless_dev *wdev,
11055 struct cfg80211_nan_match_params *match, gfp_t gfp)
11056{
11057 struct wiphy *wiphy = wdev->wiphy;
11058 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11059 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11060 struct sk_buff *msg;
11061 void *hdr;
11062
11063 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11064 return;
11065
11066 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11067 if (!msg)
11068 return;
11069
11070 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11071 if (!hdr) {
11072 nlmsg_free(msg);
11073 return;
11074 }
11075
11076 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11077 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11078 wdev->netdev->ifindex)) ||
11079 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11080 NL80211_ATTR_PAD))
11081 goto nla_put_failure;
11082
11083 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11084 NL80211_ATTR_PAD) ||
11085 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11086 goto nla_put_failure;
11087
11088 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11089 if (!match_attr)
11090 goto nla_put_failure;
11091
11092 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11093 if (!local_func_attr)
11094 goto nla_put_failure;
11095
11096 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11097 goto nla_put_failure;
11098
11099 nla_nest_end(msg, local_func_attr);
11100
11101 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11102 if (!peer_func_attr)
11103 goto nla_put_failure;
11104
11105 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11106 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11107 goto nla_put_failure;
11108
11109 if (match->info && match->info_len &&
11110 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11111 match->info))
11112 goto nla_put_failure;
11113
11114 nla_nest_end(msg, peer_func_attr);
11115 nla_nest_end(msg, match_attr);
11116 genlmsg_end(msg, hdr);
11117
11118 if (!wdev->owner_nlportid)
11119 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11120 msg, 0, NL80211_MCGRP_NAN, gfp);
11121 else
11122 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11123 wdev->owner_nlportid);
11124
11125 return;
11126
11127nla_put_failure:
11128 nlmsg_free(msg);
11129}
11130EXPORT_SYMBOL(cfg80211_nan_match);
11131
368e5a7b
AB		 11132void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11133 u8 inst_id,
11134 enum nl80211_nan_func_term_reason reason,
11135 u64 cookie, gfp_t gfp)
11136{
11137 struct wiphy *wiphy = wdev->wiphy;
11138 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11139 struct sk_buff *msg;
11140 struct nlattr *func_attr;
11141 void *hdr;
11142
11143 if (WARN_ON(!inst_id))
11144 return;
11145
11146 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11147 if (!msg)
11148 return;
11149
11150 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11151 if (!hdr) {
11152 nlmsg_free(msg);
11153 return;
11154 }
11155
11156 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11157 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11158 wdev->netdev->ifindex)) ||
11159 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11160 NL80211_ATTR_PAD))
11161 goto nla_put_failure;
11162
11163 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11164 NL80211_ATTR_PAD))
11165 goto nla_put_failure;
11166
11167 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11168 if (!func_attr)
11169 goto nla_put_failure;
11170
11171 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11172 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11173 goto nla_put_failure;
11174
11175 nla_nest_end(msg, func_attr);
11176 genlmsg_end(msg, hdr);
11177
11178 if (!wdev->owner_nlportid)
11179 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11180 msg, 0, NL80211_MCGRP_NAN, gfp);
11181 else
11182 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11183 wdev->owner_nlportid);
11184
11185 return;
11186
11187nla_put_failure:
11188 nlmsg_free(msg);
11189}
11190EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11191
3713b4e3
JB		 11192static int nl80211_get_protocol_features(struct sk_buff *skb,
11193 struct genl_info *info)
11194{
11195 void *hdr;
11196 struct sk_buff *msg;
11197
11198 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11199 if (!msg)
11200 return -ENOMEM;
11201
11202 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11203 NL80211_CMD_GET_PROTOCOL_FEATURES);
11204 if (!hdr)
11205 goto nla_put_failure;
11206
11207 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11208 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11209 goto nla_put_failure;
11210
11211 genlmsg_end(msg, hdr);
11212 return genlmsg_reply(msg, info);
11213
11214 nla_put_failure:
11215 kfree_skb(msg);
11216 return -ENOBUFS;
11217}
11218
355199e0
JM		 11219static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11220{
11221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11222 struct cfg80211_update_ft_ies_params ft_params;
11223 struct net_device *dev = info->user_ptr[1];
11224
11225 if (!rdev->ops->update_ft_ies)
11226 return -EOPNOTSUPP;
11227
11228 if (!info->attrs[NL80211_ATTR_MDID] ||
11229 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11230 return -EINVAL;
11231
11232 memset(&ft_params, 0, sizeof(ft_params));
11233 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11234 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11235 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11236
11237 return rdev_update_ft_ies(rdev, dev, &ft_params);
11238}
11239
5de17984
AS		 11240static int nl80211_crit_protocol_start(struct sk_buff *skb,
11241 struct genl_info *info)
11242{
11243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11244 struct wireless_dev *wdev = info->user_ptr[1];
11245 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11246 u16 duration;
11247 int ret;
11248
11249 if (!rdev->ops->crit_proto_start)
11250 return -EOPNOTSUPP;
11251
11252 if (WARN_ON(!rdev->ops->crit_proto_stop))
11253 return -EINVAL;
11254
11255 if (rdev->crit_proto_nlportid)
11256 return -EBUSY;
11257
11258 /* determine protocol if provided */
11259 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11260 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11261
11262 if (proto >= NUM_NL80211_CRIT_PROTO)
11263 return -EINVAL;
11264
11265 /* timeout must be provided */
11266 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11267 return -EINVAL;
11268
11269 duration =
11270 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11271
11272 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11273 return -ERANGE;
11274
11275 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11276 if (!ret)
11277 rdev->crit_proto_nlportid = info->snd_portid;
11278
11279 return ret;
11280}
11281
11282static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11283 struct genl_info *info)
11284{
11285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11286 struct wireless_dev *wdev = info->user_ptr[1];
11287
11288 if (!rdev->ops->crit_proto_stop)
11289 return -EOPNOTSUPP;
11290
11291 if (rdev->crit_proto_nlportid) {
11292 rdev->crit_proto_nlportid = 0;
11293 rdev_crit_proto_stop(rdev, wdev);
11294 }
11295 return 0;
11296}
11297
ad7e718c
JB		 11298static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11299{
11300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11301 struct wireless_dev *wdev =
11302 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11303 int i, err;
11304 u32 vid, subcmd;
11305
11306 if (!rdev->wiphy.vendor_commands)
11307 return -EOPNOTSUPP;
11308
11309 if (IS_ERR(wdev)) {
11310 err = PTR_ERR(wdev);
11311 if (err != -EINVAL)
11312 return err;
11313 wdev = NULL;
11314 } else if (wdev->wiphy != &rdev->wiphy) {
11315 return -EINVAL;
11316 }
11317
11318 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11319 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11320 return -EINVAL;
11321
11322 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11323 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11324 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11325 const struct wiphy_vendor_command *vcmd;
11326 void *data = NULL;
11327 int len = 0;
11328
11329 vcmd = &rdev->wiphy.vendor_commands[i];
11330
11331 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11332 continue;
11333
11334 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11335 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11336 if (!wdev)
11337 return -EINVAL;
11338 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11339 !wdev->netdev)
11340 return -EINVAL;
11341
11342 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11343 if (!wdev_running(wdev))
ad7e718c
JB		 11344 return -ENETDOWN;
11345 }
7bdbe400
JB		 11346
11347 if (!vcmd->doit)
11348 return -EOPNOTSUPP;
ad7e718c
JB		 11349 } else {
11350 wdev = NULL;
11351 }
11352
11353 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11354 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11355 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11356 }
11357
11358 rdev->cur_cmd_info = info;
11359 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11360 data, len);
11361 rdev->cur_cmd_info = NULL;
11362 return err;
11363 }
11364
11365 return -EOPNOTSUPP;
11366}
11367
7bdbe400
JB		 11368static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11369 struct netlink_callback *cb,
11370 struct cfg80211_registered_device **rdev,
11371 struct wireless_dev **wdev)
11372{
c90c39da 11373 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7bdbe400
JB		 11374 u32 vid, subcmd;
11375 unsigned int i;
11376 int vcmd_idx = -1;
11377 int err;
11378 void *data = NULL;
11379 unsigned int data_len = 0;
11380
11381 rtnl_lock();
11382
11383 if (cb->args[0]) {
11384 /* subtract the 1 again here */
11385 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11386 struct wireless_dev *tmp;
11387
11388 if (!wiphy) {
11389 err = -ENODEV;
11390 goto out_unlock;
11391 }
11392 *rdev = wiphy_to_rdev(wiphy);
11393 *wdev = NULL;
11394
11395 if (cb->args[1]) {
53873f13 11396 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11397 if (tmp->identifier == cb->args[1] - 1) {
11398 *wdev = tmp;
11399 break;
11400 }
11401 }
11402 }
11403
11404 /* keep rtnl locked in successful case */
11405 return 0;
11406 }
11407
11408 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 11409 attrbuf, nl80211_fam.maxattr, nl80211_policy);
7bdbe400
JB		 11410 if (err)
11411 goto out_unlock;
11412
c90c39da
JB		 11413 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
11414 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
7bdbe400
JB		 11415 err = -EINVAL;
11416 goto out_unlock;
11417 }
11418
c90c39da 11419 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11420 if (IS_ERR(*wdev))
11421 *wdev = NULL;
11422
c90c39da 11423 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11424 if (IS_ERR(*rdev)) {
11425 err = PTR_ERR(*rdev);
11426 goto out_unlock;
11427 }
11428
c90c39da
JB		 11429 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11430 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
7bdbe400
JB		 11431
11432 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11433 const struct wiphy_vendor_command *vcmd;
11434
11435 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11436
11437 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11438 continue;
11439
11440 if (!vcmd->dumpit) {
11441 err = -EOPNOTSUPP;
11442 goto out_unlock;
11443 }
11444
11445 vcmd_idx = i;
11446 break;
11447 }
11448
11449 if (vcmd_idx < 0) {
11450 err = -EOPNOTSUPP;
11451 goto out_unlock;
11452 }
11453
c90c39da
JB		 11454 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11455 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11456 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
7bdbe400
JB		 11457 }
11458
11459 /* 0 is the first index - add 1 to parse only once */
11460 cb->args[0] = (*rdev)->wiphy_idx + 1;
11461 /* add 1 to know if it was NULL */
11462 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11463 cb->args[2] = vcmd_idx;
11464 cb->args[3] = (unsigned long)data;
11465 cb->args[4] = data_len;
11466
11467 /* keep rtnl locked in successful case */
11468 return 0;
11469 out_unlock:
11470 rtnl_unlock();
11471 return err;
11472}
11473
11474static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11475 struct netlink_callback *cb)
11476{
11477 struct cfg80211_registered_device *rdev;
11478 struct wireless_dev *wdev;
11479 unsigned int vcmd_idx;
11480 const struct wiphy_vendor_command *vcmd;
11481 void *data;
11482 int data_len;
11483 int err;
11484 struct nlattr *vendor_data;
11485
11486 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11487 if (err)
11488 return err;
11489
11490 vcmd_idx = cb->args[2];
11491 data = (void *)cb->args[3];
11492 data_len = cb->args[4];
11493 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11494
11495 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11496 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11497 if (!wdev)
11498 return -EINVAL;
11499 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11500 !wdev->netdev)
11501 return -EINVAL;
11502
11503 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11504 if (!wdev_running(wdev))
7bdbe400
JB		 11505 return -ENETDOWN;
11506 }
11507 }
11508
11509 while (1) {
11510 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11511 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11512 NL80211_CMD_VENDOR);
11513 if (!hdr)
11514 break;
11515
11516 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 11517 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11518 wdev_id(wdev),
11519 NL80211_ATTR_PAD))) {
7bdbe400
JB		 11520 genlmsg_cancel(skb, hdr);
11521 break;
11522 }
11523
11524 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11525 if (!vendor_data) {
11526 genlmsg_cancel(skb, hdr);
11527 break;
11528 }
11529
11530 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11531 (unsigned long *)&cb->args[5]);
11532 nla_nest_end(skb, vendor_data);
11533
11534 if (err == -ENOBUFS || err == -ENOENT) {
11535 genlmsg_cancel(skb, hdr);
11536 break;
11537 } else if (err) {
11538 genlmsg_cancel(skb, hdr);
11539 goto out;
11540 }
11541
11542 genlmsg_end(skb, hdr);
11543 }
11544
11545 err = skb->len;
11546 out:
11547 rtnl_unlock();
11548 return err;
11549}
11550
ad7e718c
JB		 11551struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11552 enum nl80211_commands cmd,
11553 enum nl80211_attrs attr,
11554 int approxlen)
11555{
f26cbf40 11556 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 11557
11558 if (WARN_ON(!rdev->cur_cmd_info))
11559 return NULL;
11560
6c09e791 11561 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 11562 rdev->cur_cmd_info->snd_portid,
11563 rdev->cur_cmd_info->snd_seq,
567ffc35 11564 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 11565}
11566EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
11567
11568int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
11569{
11570 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
11571 void *hdr = ((void **)skb->cb)[1];
11572 struct nlattr *data = ((void **)skb->cb)[2];
11573
bd8c78e7
JB		 11574 /* clear CB data for netlink core to own from now on */
11575 memset(skb->cb, 0, sizeof(skb->cb));
11576
ad7e718c
JB		 11577 if (WARN_ON(!rdev->cur_cmd_info)) {
11578 kfree_skb(skb);
11579 return -EINVAL;
11580 }
11581
11582 nla_nest_end(skb, data);
11583 genlmsg_end(skb, hdr);
11584 return genlmsg_reply(skb, rdev->cur_cmd_info);
11585}
11586EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
11587
fa9ffc74
KP		 11588static int nl80211_set_qos_map(struct sk_buff *skb,
11589 struct genl_info *info)
11590{
11591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11592 struct cfg80211_qos_map *qos_map = NULL;
11593 struct net_device *dev = info->user_ptr[1];
11594 u8 *pos, len, num_des, des_len, des;
11595 int ret;
11596
11597 if (!rdev->ops->set_qos_map)
11598 return -EOPNOTSUPP;
11599
11600 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
11601 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
11602 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
11603
11604 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
11605 len > IEEE80211_QOS_MAP_LEN_MAX)
11606 return -EINVAL;
11607
11608 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
11609 if (!qos_map)
11610 return -ENOMEM;
11611
11612 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
11613 if (num_des) {
11614 des_len = num_des *
11615 sizeof(struct cfg80211_dscp_exception);
11616 memcpy(qos_map->dscp_exception, pos, des_len);
11617 qos_map->num_des = num_des;
11618 for (des = 0; des < num_des; des++) {
11619 if (qos_map->dscp_exception[des].up > 7) {
11620 kfree(qos_map);
11621 return -EINVAL;
11622 }
11623 }
11624 pos += des_len;
11625 }
11626 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
11627 }
11628
11629 wdev_lock(dev->ieee80211_ptr);
11630 ret = nl80211_key_allowed(dev->ieee80211_ptr);
11631 if (!ret)
11632 ret = rdev_set_qos_map(rdev, dev, qos_map);
11633 wdev_unlock(dev->ieee80211_ptr);
11634
11635 kfree(qos_map);
11636 return ret;
11637}
11638
960d01ac
JB		 11639static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
11640{
11641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11642 struct net_device *dev = info->user_ptr[1];
11643 struct wireless_dev *wdev = dev->ieee80211_ptr;
11644 const u8 *peer;
11645 u8 tsid, up;
11646 u16 admitted_time = 0;
11647 int err;
11648
723e73ac 11649 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 11650 return -EOPNOTSUPP;
11651
11652 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
11653 !info->attrs[NL80211_ATTR_USER_PRIO])
11654 return -EINVAL;
11655
11656 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11657 if (tsid >= IEEE80211_NUM_TIDS)
11658 return -EINVAL;
11659
11660 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
11661 if (up >= IEEE80211_NUM_UPS)
11662 return -EINVAL;
11663
11664 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 11665 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 11666 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 11667 * need more attributes for that (e.g. BA session requirement);
11668 * change the WMM adminssion test above to allow both then
960d01ac
JB		 11669 */
11670 return -EINVAL;
11671 }
11672
11673 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11674
11675 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
11676 admitted_time =
11677 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11678 if (!admitted_time)
11679 return -EINVAL;
11680 }
11681
11682 wdev_lock(wdev);
11683 switch (wdev->iftype) {
11684 case NL80211_IFTYPE_STATION:
11685 case NL80211_IFTYPE_P2P_CLIENT:
11686 if (wdev->current_bss)
11687 break;
11688 err = -ENOTCONN;
11689 goto out;
11690 default:
11691 err = -EOPNOTSUPP;
11692 goto out;
11693 }
11694
11695 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11696
11697 out:
11698 wdev_unlock(wdev);
11699 return err;
11700}
11701
11702static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11703{
11704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11705 struct net_device *dev = info->user_ptr[1];
11706 struct wireless_dev *wdev = dev->ieee80211_ptr;
11707 const u8 *peer;
11708 u8 tsid;
11709 int err;
11710
11711 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11712 return -EINVAL;
11713
11714 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11715 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11716
11717 wdev_lock(wdev);
11718 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
11719 wdev_unlock(wdev);
11720
11721 return err;
11722}
11723
1057d35e
AN		 11724static int nl80211_tdls_channel_switch(struct sk_buff *skb,
11725 struct genl_info *info)
11726{
11727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11728 struct net_device *dev = info->user_ptr[1];
11729 struct wireless_dev *wdev = dev->ieee80211_ptr;
11730 struct cfg80211_chan_def chandef = {};
11731 const u8 *addr;
11732 u8 oper_class;
11733 int err;
11734
11735 if (!rdev->ops->tdls_channel_switch ||
11736 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11737 return -EOPNOTSUPP;
11738
11739 switch (dev->ieee80211_ptr->iftype) {
11740 case NL80211_IFTYPE_STATION:
11741 case NL80211_IFTYPE_P2P_CLIENT:
11742 break;
11743 default:
11744 return -EOPNOTSUPP;
11745 }
11746
11747 if (!info->attrs[NL80211_ATTR_MAC] ||
11748 !info->attrs[NL80211_ATTR_OPER_CLASS])
11749 return -EINVAL;
11750
11751 err = nl80211_parse_chandef(rdev, info, &chandef);
11752 if (err)
11753 return err;
11754
11755 /*
11756 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
11757 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
11758 * specification is not defined for them.
11759 */
57fbcce3 11760 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 11761 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
11762 chandef.width != NL80211_CHAN_WIDTH_20)
11763 return -EINVAL;
11764
11765 /* we will be active on the TDLS link */
923b352f
AN		 11766 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11767 wdev->iftype))
1057d35e
AN		 11768 return -EINVAL;
11769
11770 /* don't allow switching to DFS channels */
11771 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11772 return -EINVAL;
11773
11774 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11775 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11776
11777 wdev_lock(wdev);
11778 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11779 wdev_unlock(wdev);
11780
11781 return err;
11782}
11783
11784static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11785 struct genl_info *info)
11786{
11787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11788 struct net_device *dev = info->user_ptr[1];
11789 struct wireless_dev *wdev = dev->ieee80211_ptr;
11790 const u8 *addr;
11791
11792 if (!rdev->ops->tdls_channel_switch ||
11793 !rdev->ops->tdls_cancel_channel_switch ||
11794 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11795 return -EOPNOTSUPP;
11796
11797 switch (dev->ieee80211_ptr->iftype) {
11798 case NL80211_IFTYPE_STATION:
11799 case NL80211_IFTYPE_P2P_CLIENT:
11800 break;
11801 default:
11802 return -EOPNOTSUPP;
11803 }
11804
11805 if (!info->attrs[NL80211_ATTR_MAC])
11806 return -EINVAL;
11807
11808 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11809
11810 wdev_lock(wdev);
11811 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11812 wdev_unlock(wdev);
11813
11814 return 0;
11815}
11816
ce0ce13a
MB		 11817static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
11818 struct genl_info *info)
11819{
11820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11821 struct net_device *dev = info->user_ptr[1];
11822 struct wireless_dev *wdev = dev->ieee80211_ptr;
11823 const struct nlattr *nla;
11824 bool enabled;
11825
11826 if (netif_running(dev))
11827 return -EBUSY;
11828
11829 if (!rdev->ops->set_multicast_to_unicast)
11830 return -EOPNOTSUPP;
11831
11832 if (wdev->iftype != NL80211_IFTYPE_AP &&
11833 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11834 return -EOPNOTSUPP;
11835
11836 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
11837 enabled = nla_get_flag(nla);
11838
11839 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
11840}
11841
4c476991
JB		 11842#define NL80211_FLAG_NEED_WIPHY 0x01
11843#define NL80211_FLAG_NEED_NETDEV 0x02
11844#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 11845#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11846#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11847 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 11848#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 11849/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 11850#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11851 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11852#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11853
f84f771d 11854static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11855 struct genl_info *info)
11856{
11857 struct cfg80211_registered_device *rdev;
89a54e48 11858 struct wireless_dev *wdev;
4c476991 11859 struct net_device *dev;
4c476991
JB		 11860 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11861
11862 if (rtnl)
11863 rtnl_lock();
11864
11865 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11866 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11867 if (IS_ERR(rdev)) {
11868 if (rtnl)
11869 rtnl_unlock();
11870 return PTR_ERR(rdev);
11871 }
11872 info->user_ptr[0] = rdev;
1bf614ef
JB		 11873 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11874 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11875 ASSERT_RTNL();
11876
89a54e48
JB		 11877 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11878 info->attrs);
11879 if (IS_ERR(wdev)) {
4c476991
JB		 11880 if (rtnl)
11881 rtnl_unlock();
89a54e48 11882 return PTR_ERR(wdev);
4c476991 11883 }
89a54e48 11884
89a54e48 11885 dev = wdev->netdev;
f26cbf40 11886 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11887
1bf614ef
JB		 11888 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11889 if (!dev) {
1bf614ef
JB		 11890 if (rtnl)
11891 rtnl_unlock();
11892 return -EINVAL;
11893 }
11894
11895 info->user_ptr[1] = dev;
11896 } else {
11897 info->user_ptr[1] = wdev;
41265714 11898 }
1bf614ef 11899
73c7da3d
AVS		 11900 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11901 !wdev_running(wdev)) {
11902 if (rtnl)
11903 rtnl_unlock();
11904 return -ENETDOWN;
11905 }
1bf614ef 11906
73c7da3d 11907 if (dev)
1bf614ef 11908 dev_hold(dev);
89a54e48 11909
4c476991 11910 info->user_ptr[0] = rdev;
4c476991
JB		 11911 }
11912
11913 return 0;
11914}
11915
f84f771d 11916static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11917 struct genl_info *info)
11918{
1bf614ef
JB		 11919 if (info->user_ptr[1]) {
11920 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11921 struct wireless_dev *wdev = info->user_ptr[1];
11922
11923 if (wdev->netdev)
11924 dev_put(wdev->netdev);
11925 } else {
11926 dev_put(info->user_ptr[1]);
11927 }
11928 }
5393b917 11929
4c476991
JB		 11930 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11931 rtnl_unlock();
5393b917
JB		 11932
11933 /* If needed, clear the netlink message payload from the SKB
11934 * as it might contain key data that shouldn't stick around on
11935 * the heap after the SKB is freed. The netlink message header
11936 * is still needed for further processing, so leave it intact.
11937 */
11938 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11939 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11940
11941 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11942 }
4c476991
JB		 11943}
11944
4534de83 11945static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11946 {
11947 .cmd = NL80211_CMD_GET_WIPHY,
11948 .doit = nl80211_get_wiphy,
11949 .dumpit = nl80211_dump_wiphy,
86e8cf98 11950 .done = nl80211_dump_wiphy_done,
55682965
JB		 11951 .policy = nl80211_policy,
11952 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11953 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11954 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11955 },
11956 {
11957 .cmd = NL80211_CMD_SET_WIPHY,
11958 .doit = nl80211_set_wiphy,
11959 .policy = nl80211_policy,
5617c6cd 11960 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11961 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11962 },
11963 {
11964 .cmd = NL80211_CMD_GET_INTERFACE,
11965 .doit = nl80211_get_interface,
11966 .dumpit = nl80211_dump_interface,
11967 .policy = nl80211_policy,
11968 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11969 .internal_flags = NL80211_FLAG_NEED_WDEV |
11970 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11971 },
11972 {
11973 .cmd = NL80211_CMD_SET_INTERFACE,
11974 .doit = nl80211_set_interface,
11975 .policy = nl80211_policy,
5617c6cd 11976 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11977 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11978 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11979 },
11980 {
11981 .cmd = NL80211_CMD_NEW_INTERFACE,
11982 .doit = nl80211_new_interface,
11983 .policy = nl80211_policy,
5617c6cd 11984 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11985 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11986 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11987 },
11988 {
11989 .cmd = NL80211_CMD_DEL_INTERFACE,
11990 .doit = nl80211_del_interface,
11991 .policy = nl80211_policy,
5617c6cd 11992 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11993 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11994 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11995 },
11996 {
11997 .cmd = NL80211_CMD_GET_KEY,
11998 .doit = nl80211_get_key,
11999 .policy = nl80211_policy,
5617c6cd 12000 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12001 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12002 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12003 },
12004 {
12005 .cmd = NL80211_CMD_SET_KEY,
12006 .doit = nl80211_set_key,
12007 .policy = nl80211_policy,
5617c6cd 12008 .flags = GENL_UNS_ADMIN_PERM,
41265714 12009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12010 NL80211_FLAG_NEED_RTNL |
12011 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12012 },
12013 {
12014 .cmd = NL80211_CMD_NEW_KEY,
12015 .doit = nl80211_new_key,
12016 .policy = nl80211_policy,
5617c6cd 12017 .flags = GENL_UNS_ADMIN_PERM,
41265714 12018 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12019 NL80211_FLAG_NEED_RTNL |
12020 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12021 },
12022 {
12023 .cmd = NL80211_CMD_DEL_KEY,
12024 .doit = nl80211_del_key,
12025 .policy = nl80211_policy,
5617c6cd 12026 .flags = GENL_UNS_ADMIN_PERM,
41265714 12027 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12028 NL80211_FLAG_NEED_RTNL,
55682965 12029 },
ed1b6cc7
JB		 12030 {
12031 .cmd = NL80211_CMD_SET_BEACON,
12032 .policy = nl80211_policy,
5617c6cd 12033 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12034 .doit = nl80211_set_beacon,
2b5f8b0b 12035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12036 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12037 },
12038 {
8860020e 12039 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 12040 .policy = nl80211_policy,
5617c6cd 12041 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12042 .doit = nl80211_start_ap,
2b5f8b0b 12043 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12044 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12045 },
12046 {
8860020e 12047 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 12048 .policy = nl80211_policy,
5617c6cd 12049 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12050 .doit = nl80211_stop_ap,
2b5f8b0b 12051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12052 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 12053 },
5727ef1b
JB		 12054 {
12055 .cmd = NL80211_CMD_GET_STATION,
12056 .doit = nl80211_get_station,
2ec600d6 12057 .dumpit = nl80211_dump_station,
5727ef1b 12058 .policy = nl80211_policy,
4c476991
JB		 12059 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12060 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12061 },
12062 {
12063 .cmd = NL80211_CMD_SET_STATION,
12064 .doit = nl80211_set_station,
12065 .policy = nl80211_policy,
5617c6cd 12066 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12067 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12068 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12069 },
12070 {
12071 .cmd = NL80211_CMD_NEW_STATION,
12072 .doit = nl80211_new_station,
12073 .policy = nl80211_policy,
5617c6cd 12074 .flags = GENL_UNS_ADMIN_PERM,
41265714 12075 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12076 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12077 },
12078 {
12079 .cmd = NL80211_CMD_DEL_STATION,
12080 .doit = nl80211_del_station,
12081 .policy = nl80211_policy,
5617c6cd 12082 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12083 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12084 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12085 },
12086 {
12087 .cmd = NL80211_CMD_GET_MPATH,
12088 .doit = nl80211_get_mpath,
12089 .dumpit = nl80211_dump_mpath,
12090 .policy = nl80211_policy,
5617c6cd 12091 .flags = GENL_UNS_ADMIN_PERM,
41265714 12092 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12093 NL80211_FLAG_NEED_RTNL,
2ec600d6 12094 },
66be7d2b
HR		 12095 {
12096 .cmd = NL80211_CMD_GET_MPP,
12097 .doit = nl80211_get_mpp,
12098 .dumpit = nl80211_dump_mpp,
12099 .policy = nl80211_policy,
5617c6cd 12100 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 12101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12102 NL80211_FLAG_NEED_RTNL,
12103 },
2ec600d6
LCC		 12104 {
12105 .cmd = NL80211_CMD_SET_MPATH,
12106 .doit = nl80211_set_mpath,
12107 .policy = nl80211_policy,
5617c6cd 12108 .flags = GENL_UNS_ADMIN_PERM,
41265714 12109 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12110 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12111 },
12112 {
12113 .cmd = NL80211_CMD_NEW_MPATH,
12114 .doit = nl80211_new_mpath,
12115 .policy = nl80211_policy,
5617c6cd 12116 .flags = GENL_UNS_ADMIN_PERM,
41265714 12117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12118 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12119 },
12120 {
12121 .cmd = NL80211_CMD_DEL_MPATH,
12122 .doit = nl80211_del_mpath,
12123 .policy = nl80211_policy,
5617c6cd 12124 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12125 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12126 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12127 },
12128 {
12129 .cmd = NL80211_CMD_SET_BSS,
12130 .doit = nl80211_set_bss,
12131 .policy = nl80211_policy,
5617c6cd 12132 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12133 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12134 NL80211_FLAG_NEED_RTNL,
b2e1b302 12135 },
f130347c
LR		 12136 {
12137 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12138 .doit = nl80211_get_reg_do,
12139 .dumpit = nl80211_get_reg_dump,
f130347c 12140 .policy = nl80211_policy,
5fe231e8 12141 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12142 /* can be retrieved by unprivileged users */
12143 },
b6863036 12144#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12145 {
12146 .cmd = NL80211_CMD_SET_REG,
12147 .doit = nl80211_set_reg,
12148 .policy = nl80211_policy,
12149 .flags = GENL_ADMIN_PERM,
5fe231e8 12150 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12151 },
b6863036 12152#endif
b2e1b302
LR		 12153 {
12154 .cmd = NL80211_CMD_REQ_SET_REG,
12155 .doit = nl80211_req_set_reg,
12156 .policy = nl80211_policy,
93da9cc1 12157 .flags = GENL_ADMIN_PERM,
12158 },
12159 {
24bdd9f4
JC		 12160 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12161 .doit = nl80211_get_mesh_config,
93da9cc1 12162 .policy = nl80211_policy,
12163 /* can be retrieved by unprivileged users */
2b5f8b0b 12164 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12165 NL80211_FLAG_NEED_RTNL,
93da9cc1 12166 },
12167 {
24bdd9f4
JC		 12168 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12169 .doit = nl80211_update_mesh_config,
93da9cc1 12170 .policy = nl80211_policy,
5617c6cd 12171 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12172 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12173 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12174 },
2a519311
JB		 12175 {
12176 .cmd = NL80211_CMD_TRIGGER_SCAN,
12177 .doit = nl80211_trigger_scan,
12178 .policy = nl80211_policy,
5617c6cd 12179 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12180 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12181 NL80211_FLAG_NEED_RTNL,
2a519311 12182 },
91d3ab46
VK		 12183 {
12184 .cmd = NL80211_CMD_ABORT_SCAN,
12185 .doit = nl80211_abort_scan,
12186 .policy = nl80211_policy,
5617c6cd 12187 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12188 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12189 NL80211_FLAG_NEED_RTNL,
12190 },
2a519311
JB		 12191 {
12192 .cmd = NL80211_CMD_GET_SCAN,
12193 .policy = nl80211_policy,
12194 .dumpit = nl80211_dump_scan,
12195 },
807f8a8c
LC		 12196 {
12197 .cmd = NL80211_CMD_START_SCHED_SCAN,
12198 .doit = nl80211_start_sched_scan,
12199 .policy = nl80211_policy,
5617c6cd 12200 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12201 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12202 NL80211_FLAG_NEED_RTNL,
12203 },
12204 {
12205 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12206 .doit = nl80211_stop_sched_scan,
12207 .policy = nl80211_policy,
5617c6cd 12208 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12209 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12210 NL80211_FLAG_NEED_RTNL,
12211 },
636a5d36
JM		 12212 {
12213 .cmd = NL80211_CMD_AUTHENTICATE,
12214 .doit = nl80211_authenticate,
12215 .policy = nl80211_policy,
5617c6cd 12216 .flags = GENL_UNS_ADMIN_PERM,
41265714 12217 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12218 NL80211_FLAG_NEED_RTNL |
12219 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12220 },
12221 {
12222 .cmd = NL80211_CMD_ASSOCIATE,
12223 .doit = nl80211_associate,
12224 .policy = nl80211_policy,
5617c6cd 12225 .flags = GENL_UNS_ADMIN_PERM,
41265714 12226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12227 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12228 },
12229 {
12230 .cmd = NL80211_CMD_DEAUTHENTICATE,
12231 .doit = nl80211_deauthenticate,
12232 .policy = nl80211_policy,
5617c6cd 12233 .flags = GENL_UNS_ADMIN_PERM,
41265714 12234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12235 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12236 },
12237 {
12238 .cmd = NL80211_CMD_DISASSOCIATE,
12239 .doit = nl80211_disassociate,
12240 .policy = nl80211_policy,
5617c6cd 12241 .flags = GENL_UNS_ADMIN_PERM,
41265714 12242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12243 NL80211_FLAG_NEED_RTNL,
636a5d36 12244 },
04a773ad
JB		 12245 {
12246 .cmd = NL80211_CMD_JOIN_IBSS,
12247 .doit = nl80211_join_ibss,
12248 .policy = nl80211_policy,
5617c6cd 12249 .flags = GENL_UNS_ADMIN_PERM,
41265714 12250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12251 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12252 },
12253 {
12254 .cmd = NL80211_CMD_LEAVE_IBSS,
12255 .doit = nl80211_leave_ibss,
12256 .policy = nl80211_policy,
5617c6cd 12257 .flags = GENL_UNS_ADMIN_PERM,
41265714 12258 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12259 NL80211_FLAG_NEED_RTNL,
04a773ad 12260 },
aff89a9b
JB		 12261#ifdef CONFIG_NL80211_TESTMODE
12262 {
12263 .cmd = NL80211_CMD_TESTMODE,
12264 .doit = nl80211_testmode_do,
71063f0e 12265 .dumpit = nl80211_testmode_dump,
aff89a9b 12266 .policy = nl80211_policy,
5617c6cd 12267 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12268 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12269 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12270 },
12271#endif
b23aa676
SO		 12272 {
12273 .cmd = NL80211_CMD_CONNECT,
12274 .doit = nl80211_connect,
12275 .policy = nl80211_policy,
5617c6cd 12276 .flags = GENL_UNS_ADMIN_PERM,
41265714 12277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12278 NL80211_FLAG_NEED_RTNL,
b23aa676 12279 },
088e8df8 12280 {
12281 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12282 .doit = nl80211_update_connect_params,
12283 .policy = nl80211_policy,
12284 .flags = GENL_ADMIN_PERM,
12285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12286 NL80211_FLAG_NEED_RTNL,
12287 },
b23aa676
SO		 12288 {
12289 .cmd = NL80211_CMD_DISCONNECT,
12290 .doit = nl80211_disconnect,
12291 .policy = nl80211_policy,
5617c6cd 12292 .flags = GENL_UNS_ADMIN_PERM,
41265714 12293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12294 NL80211_FLAG_NEED_RTNL,
b23aa676 12295 },
463d0183
JB		 12296 {
12297 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12298 .doit = nl80211_wiphy_netns,
12299 .policy = nl80211_policy,
5617c6cd 12300 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12301 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12302 NL80211_FLAG_NEED_RTNL,
463d0183 12303 },
61fa713c
HS		 12304 {
12305 .cmd = NL80211_CMD_GET_SURVEY,
12306 .policy = nl80211_policy,
12307 .dumpit = nl80211_dump_survey,
12308 },
67fbb16b
SO		 12309 {
12310 .cmd = NL80211_CMD_SET_PMKSA,
12311 .doit = nl80211_setdel_pmksa,
12312 .policy = nl80211_policy,
5617c6cd 12313 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12315 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12316 },
12317 {
12318 .cmd = NL80211_CMD_DEL_PMKSA,
12319 .doit = nl80211_setdel_pmksa,
12320 .policy = nl80211_policy,
5617c6cd 12321 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12322 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12323 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12324 },
12325 {
12326 .cmd = NL80211_CMD_FLUSH_PMKSA,
12327 .doit = nl80211_flush_pmksa,
12328 .policy = nl80211_policy,
5617c6cd 12329 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12331 NL80211_FLAG_NEED_RTNL,
67fbb16b 12332 },
9588bbd5
JM		 12333 {
12334 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12335 .doit = nl80211_remain_on_channel,
12336 .policy = nl80211_policy,
5617c6cd 12337 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12338 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12339 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 12340 },
12341 {
12342 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12343 .doit = nl80211_cancel_remain_on_channel,
12344 .policy = nl80211_policy,
5617c6cd 12345 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12346 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12347 NL80211_FLAG_NEED_RTNL,
9588bbd5 12348 },
13ae75b1
JM		 12349 {
12350 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12351 .doit = nl80211_set_tx_bitrate_mask,
12352 .policy = nl80211_policy,
5617c6cd 12353 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12354 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12355 NL80211_FLAG_NEED_RTNL,
13ae75b1 12356 },
026331c4 12357 {
2e161f78
JB		 12358 .cmd = NL80211_CMD_REGISTER_FRAME,
12359 .doit = nl80211_register_mgmt,
026331c4 12360 .policy = nl80211_policy,
5617c6cd 12361 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12362 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12363 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12364 },
12365 {
2e161f78
JB		 12366 .cmd = NL80211_CMD_FRAME,
12367 .doit = nl80211_tx_mgmt,
026331c4 12368 .policy = nl80211_policy,
5617c6cd 12369 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12370 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12371 NL80211_FLAG_NEED_RTNL,
12372 },
12373 {
12374 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12375 .doit = nl80211_tx_mgmt_cancel_wait,
12376 .policy = nl80211_policy,
5617c6cd 12377 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12378 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12379 NL80211_FLAG_NEED_RTNL,
026331c4 12380 },
ffb9eb3d
KV		 12381 {
12382 .cmd = NL80211_CMD_SET_POWER_SAVE,
12383 .doit = nl80211_set_power_save,
12384 .policy = nl80211_policy,
5617c6cd 12385 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12386 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12387 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 12388 },
12389 {
12390 .cmd = NL80211_CMD_GET_POWER_SAVE,
12391 .doit = nl80211_get_power_save,
12392 .policy = nl80211_policy,
12393 /* can be retrieved by unprivileged users */
4c476991
JB		 12394 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12395 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 12396 },
d6dc1a38
JO		 12397 {
12398 .cmd = NL80211_CMD_SET_CQM,
12399 .doit = nl80211_set_cqm,
12400 .policy = nl80211_policy,
5617c6cd 12401 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12402 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12403 NL80211_FLAG_NEED_RTNL,
d6dc1a38 12404 },
f444de05
JB		 12405 {
12406 .cmd = NL80211_CMD_SET_CHANNEL,
12407 .doit = nl80211_set_channel,
12408 .policy = nl80211_policy,
5617c6cd 12409 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12410 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12411 NL80211_FLAG_NEED_RTNL,
f444de05 12412 },
e8347eba
BJ		 12413 {
12414 .cmd = NL80211_CMD_SET_WDS_PEER,
12415 .doit = nl80211_set_wds_peer,
12416 .policy = nl80211_policy,
5617c6cd 12417 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 12418 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12419 NL80211_FLAG_NEED_RTNL,
e8347eba 12420 },
29cbe68c
JB		 12421 {
12422 .cmd = NL80211_CMD_JOIN_MESH,
12423 .doit = nl80211_join_mesh,
12424 .policy = nl80211_policy,
5617c6cd 12425 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12427 NL80211_FLAG_NEED_RTNL,
12428 },
12429 {
12430 .cmd = NL80211_CMD_LEAVE_MESH,
12431 .doit = nl80211_leave_mesh,
12432 .policy = nl80211_policy,
5617c6cd 12433 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12435 NL80211_FLAG_NEED_RTNL,
12436 },
6e0bd6c3
RL		 12437 {
12438 .cmd = NL80211_CMD_JOIN_OCB,
12439 .doit = nl80211_join_ocb,
12440 .policy = nl80211_policy,
5617c6cd 12441 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12443 NL80211_FLAG_NEED_RTNL,
12444 },
12445 {
12446 .cmd = NL80211_CMD_LEAVE_OCB,
12447 .doit = nl80211_leave_ocb,
12448 .policy = nl80211_policy,
5617c6cd 12449 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12451 NL80211_FLAG_NEED_RTNL,
12452 },
dfb89c56 12453#ifdef CONFIG_PM
ff1b6e69
JB		 12454 {
12455 .cmd = NL80211_CMD_GET_WOWLAN,
12456 .doit = nl80211_get_wowlan,
12457 .policy = nl80211_policy,
12458 /* can be retrieved by unprivileged users */
12459 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12460 NL80211_FLAG_NEED_RTNL,
12461 },
12462 {
12463 .cmd = NL80211_CMD_SET_WOWLAN,
12464 .doit = nl80211_set_wowlan,
12465 .policy = nl80211_policy,
5617c6cd 12466 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 12467 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12468 NL80211_FLAG_NEED_RTNL,
12469 },
dfb89c56 12470#endif
e5497d76
JB		 12471 {
12472 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12473 .doit = nl80211_set_rekey_data,
12474 .policy = nl80211_policy,
5617c6cd 12475 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 12476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12477 NL80211_FLAG_NEED_RTNL |
12478 NL80211_FLAG_CLEAR_SKB,
e5497d76 12479 },
109086ce
AN		 12480 {
12481 .cmd = NL80211_CMD_TDLS_MGMT,
12482 .doit = nl80211_tdls_mgmt,
12483 .policy = nl80211_policy,
5617c6cd 12484 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12485 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12486 NL80211_FLAG_NEED_RTNL,
12487 },
12488 {
12489 .cmd = NL80211_CMD_TDLS_OPER,
12490 .doit = nl80211_tdls_oper,
12491 .policy = nl80211_policy,
5617c6cd 12492 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12494 NL80211_FLAG_NEED_RTNL,
12495 },
28946da7
JB		 12496 {
12497 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
12498 .doit = nl80211_register_unexpected_frame,
12499 .policy = nl80211_policy,
5617c6cd 12500 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 12501 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12502 NL80211_FLAG_NEED_RTNL,
12503 },
7f6cf311
JB		 12504 {
12505 .cmd = NL80211_CMD_PROBE_CLIENT,
12506 .doit = nl80211_probe_client,
12507 .policy = nl80211_policy,
5617c6cd 12508 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12509 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 12510 NL80211_FLAG_NEED_RTNL,
12511 },
5e760230
JB		 12512 {
12513 .cmd = NL80211_CMD_REGISTER_BEACONS,
12514 .doit = nl80211_register_beacons,
12515 .policy = nl80211_policy,
5617c6cd 12516 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 12517 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12518 NL80211_FLAG_NEED_RTNL,
12519 },
1d9d9213
SW		 12520 {
12521 .cmd = NL80211_CMD_SET_NOACK_MAP,
12522 .doit = nl80211_set_noack_map,
12523 .policy = nl80211_policy,
5617c6cd 12524 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 12525 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12526 NL80211_FLAG_NEED_RTNL,
12527 },
98104fde
JB		 12528 {
12529 .cmd = NL80211_CMD_START_P2P_DEVICE,
12530 .doit = nl80211_start_p2p_device,
12531 .policy = nl80211_policy,
5617c6cd 12532 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12533 .internal_flags = NL80211_FLAG_NEED_WDEV |
12534 NL80211_FLAG_NEED_RTNL,
12535 },
12536 {
12537 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
12538 .doit = nl80211_stop_p2p_device,
12539 .policy = nl80211_policy,
5617c6cd 12540 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12541 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12542 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 12543 },
12544 {
12545 .cmd = NL80211_CMD_START_NAN,
12546 .doit = nl80211_start_nan,
12547 .policy = nl80211_policy,
12548 .flags = GENL_ADMIN_PERM,
12549 .internal_flags = NL80211_FLAG_NEED_WDEV |
12550 NL80211_FLAG_NEED_RTNL,
12551 },
12552 {
12553 .cmd = NL80211_CMD_STOP_NAN,
12554 .doit = nl80211_stop_nan,
12555 .policy = nl80211_policy,
12556 .flags = GENL_ADMIN_PERM,
12557 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12558 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 12559 },
12560 {
12561 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
12562 .doit = nl80211_nan_add_func,
12563 .policy = nl80211_policy,
12564 .flags = GENL_ADMIN_PERM,
12565 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12566 NL80211_FLAG_NEED_RTNL,
12567 },
12568 {
12569 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
12570 .doit = nl80211_nan_del_func,
12571 .policy = nl80211_policy,
12572 .flags = GENL_ADMIN_PERM,
12573 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12574 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 12575 },
12576 {
12577 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
12578 .doit = nl80211_nan_change_config,
12579 .policy = nl80211_policy,
12580 .flags = GENL_ADMIN_PERM,
12581 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12582 NL80211_FLAG_NEED_RTNL,
98104fde 12583 },
f4e583c8
AQ		 12584 {
12585 .cmd = NL80211_CMD_SET_MCAST_RATE,
12586 .doit = nl80211_set_mcast_rate,
77765eaf 12587 .policy = nl80211_policy,
5617c6cd 12588 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 12589 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12590 NL80211_FLAG_NEED_RTNL,
12591 },
12592 {
12593 .cmd = NL80211_CMD_SET_MAC_ACL,
12594 .doit = nl80211_set_mac_acl,
f4e583c8 12595 .policy = nl80211_policy,
5617c6cd 12596 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 12597 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12598 NL80211_FLAG_NEED_RTNL,
12599 },
04f39047
SW		 12600 {
12601 .cmd = NL80211_CMD_RADAR_DETECT,
12602 .doit = nl80211_start_radar_detection,
12603 .policy = nl80211_policy,
5617c6cd 12604 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 12605 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12606 NL80211_FLAG_NEED_RTNL,
12607 },
3713b4e3
JB		 12608 {
12609 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
12610 .doit = nl80211_get_protocol_features,
12611 .policy = nl80211_policy,
12612 },
355199e0
JM		 12613 {
12614 .cmd = NL80211_CMD_UPDATE_FT_IES,
12615 .doit = nl80211_update_ft_ies,
12616 .policy = nl80211_policy,
5617c6cd 12617 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 12618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12619 NL80211_FLAG_NEED_RTNL,
12620 },
5de17984
AS		 12621 {
12622 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
12623 .doit = nl80211_crit_protocol_start,
12624 .policy = nl80211_policy,
5617c6cd 12625 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12626 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12627 NL80211_FLAG_NEED_RTNL,
12628 },
12629 {
12630 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
12631 .doit = nl80211_crit_protocol_stop,
12632 .policy = nl80211_policy,
5617c6cd 12633 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12634 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12635 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 12636 },
12637 {
12638 .cmd = NL80211_CMD_GET_COALESCE,
12639 .doit = nl80211_get_coalesce,
12640 .policy = nl80211_policy,
12641 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12642 NL80211_FLAG_NEED_RTNL,
12643 },
12644 {
12645 .cmd = NL80211_CMD_SET_COALESCE,
12646 .doit = nl80211_set_coalesce,
12647 .policy = nl80211_policy,
5617c6cd 12648 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 12649 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12650 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 12651 },
12652 {
12653 .cmd = NL80211_CMD_CHANNEL_SWITCH,
12654 .doit = nl80211_channel_switch,
12655 .policy = nl80211_policy,
5617c6cd 12656 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 12657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12658 NL80211_FLAG_NEED_RTNL,
12659 },
ad7e718c
JB		 12660 {
12661 .cmd = NL80211_CMD_VENDOR,
12662 .doit = nl80211_vendor_cmd,
7bdbe400 12663 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 12664 .policy = nl80211_policy,
5617c6cd 12665 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 12666 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12667 NL80211_FLAG_NEED_RTNL,
12668 },
fa9ffc74
KP		 12669 {
12670 .cmd = NL80211_CMD_SET_QOS_MAP,
12671 .doit = nl80211_set_qos_map,
12672 .policy = nl80211_policy,
5617c6cd 12673 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 12674 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12675 NL80211_FLAG_NEED_RTNL,
12676 },
960d01ac
JB		 12677 {
12678 .cmd = NL80211_CMD_ADD_TX_TS,
12679 .doit = nl80211_add_tx_ts,
12680 .policy = nl80211_policy,
5617c6cd 12681 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12682 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12683 NL80211_FLAG_NEED_RTNL,
12684 },
12685 {
12686 .cmd = NL80211_CMD_DEL_TX_TS,
12687 .doit = nl80211_del_tx_ts,
12688 .policy = nl80211_policy,
5617c6cd 12689 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12690 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12691 NL80211_FLAG_NEED_RTNL,
12692 },
1057d35e
AN		 12693 {
12694 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
12695 .doit = nl80211_tdls_channel_switch,
12696 .policy = nl80211_policy,
5617c6cd 12697 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12698 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12699 NL80211_FLAG_NEED_RTNL,
12700 },
12701 {
12702 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
12703 .doit = nl80211_tdls_cancel_channel_switch,
12704 .policy = nl80211_policy,
5617c6cd 12705 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12706 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12707 NL80211_FLAG_NEED_RTNL,
12708 },
ce0ce13a
MB		 12709 {
12710 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
12711 .doit = nl80211_set_multicast_to_unicast,
12712 .policy = nl80211_policy,
12713 .flags = GENL_UNS_ADMIN_PERM,
12714 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12715 NL80211_FLAG_NEED_RTNL,
12716 },
55682965 12717};
9588bbd5 12718
56989f6d 12719static struct genl_family nl80211_fam __ro_after_init = {
489111e5
JB		 12720 .name = NL80211_GENL_NAME, /* have users key off the name instead */
12721 .hdrsize = 0, /* no private header */
12722 .version = 1, /* no particular meaning now */
12723 .maxattr = NL80211_ATTR_MAX,
12724 .netnsok = true,
12725 .pre_doit = nl80211_pre_doit,
12726 .post_doit = nl80211_post_doit,
12727 .module = THIS_MODULE,
12728 .ops = nl80211_ops,
12729 .n_ops = ARRAY_SIZE(nl80211_ops),
12730 .mcgrps = nl80211_mcgrps,
12731 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
12732};
12733
55682965
JB		 12734/* notification functions */
12735
3bb20556
JB		 12736void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
12737 enum nl80211_commands cmd)
55682965
JB		 12738{
12739 struct sk_buff *msg;
86e8cf98 12740 struct nl80211_dump_wiphy_state state = {};
55682965 12741
3bb20556
JB		 12742 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
12743 cmd != NL80211_CMD_DEL_WIPHY);
12744
fd2120ca 12745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 12746 if (!msg)
12747 return;
12748
3bb20556 12749 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 12750 nlmsg_free(msg);
12751 return;
12752 }
12753
68eb5503 12754 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12755 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 12756}
12757
896ff063
DK		 12758void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
12759 struct wireless_dev *wdev,
12760 enum nl80211_commands cmd)
12761{
12762 struct sk_buff *msg;
12763
12764 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
12765 cmd != NL80211_CMD_DEL_INTERFACE);
12766
12767 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12768 if (!msg)
12769 return;
12770
12771 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
12772 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
12773 nlmsg_free(msg);
12774 return;
12775 }
12776
12777 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12778 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12779}
12780
362a415d
JB		 12781static int nl80211_add_scan_req(struct sk_buff *msg,
12782 struct cfg80211_registered_device *rdev)
12783{
12784 struct cfg80211_scan_request *req = rdev->scan_req;
12785 struct nlattr *nest;
12786 int i;
12787
12788 if (WARN_ON(!req))
12789 return 0;
12790
12791 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
12792 if (!nest)
12793 goto nla_put_failure;
9360ffd1
DM		 12794 for (i = 0; i < req->n_ssids; i++) {
12795 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
12796 goto nla_put_failure;
12797 }
362a415d
JB		 12798 nla_nest_end(msg, nest);
12799
12800 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12801 if (!nest)
12802 goto nla_put_failure;
9360ffd1
DM		 12803 for (i = 0; i < req->n_channels; i++) {
12804 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12805 goto nla_put_failure;
12806 }
362a415d
JB		 12807 nla_nest_end(msg, nest);
12808
9360ffd1
DM		 12809 if (req->ie &&
12810 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
12811 goto nla_put_failure;
362a415d 12812
ae917c9f
JB		 12813 if (req->flags &&
12814 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
12815 goto nla_put_failure;
ed473771 12816
1d76250b
AS		 12817 if (req->info.scan_start_tsf &&
12818 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
12819 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
12820 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
12821 req->info.tsf_bssid)))
12822 goto nla_put_failure;
12823
362a415d
JB		 12824 return 0;
12825 nla_put_failure:
12826 return -ENOBUFS;
12827}
12828
a538e2d5
JB		 12829static int nl80211_send_scan_msg(struct sk_buff *msg,
12830 struct cfg80211_registered_device *rdev,
fd014284 12831 struct wireless_dev *wdev,
15e47304 12832 u32 portid, u32 seq, int flags,
a538e2d5 12833 u32 cmd)
2a519311
JB		 12834{
12835 void *hdr;
12836
15e47304 12837 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 12838 if (!hdr)
12839 return -1;
12840
9360ffd1 12841 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 12842 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12843 wdev->netdev->ifindex)) ||
2dad624e
ND		 12844 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12845 NL80211_ATTR_PAD))
9360ffd1 12846 goto nla_put_failure;
2a519311 12847
362a415d
JB		 12848 /* ignore errors and send incomplete event anyway */
12849 nl80211_add_scan_req(msg, rdev);
2a519311 12850
053c095a
JB		 12851 genlmsg_end(msg, hdr);
12852 return 0;
2a519311
JB		 12853
12854 nla_put_failure:
12855 genlmsg_cancel(msg, hdr);
12856 return -EMSGSIZE;
12857}
12858
807f8a8c
LC		 12859static int
12860nl80211_send_sched_scan_msg(struct sk_buff *msg,
12861 struct cfg80211_registered_device *rdev,
12862 struct net_device *netdev,
15e47304 12863 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 12864{
12865 void *hdr;
12866
15e47304 12867 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 12868 if (!hdr)
12869 return -1;
12870
9360ffd1
DM		 12871 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12872 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12873 goto nla_put_failure;
807f8a8c 12874
053c095a
JB		 12875 genlmsg_end(msg, hdr);
12876 return 0;
807f8a8c
LC		 12877
12878 nla_put_failure:
12879 genlmsg_cancel(msg, hdr);
12880 return -EMSGSIZE;
12881}
12882
a538e2d5 12883void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 12884 struct wireless_dev *wdev)
a538e2d5
JB		 12885{
12886 struct sk_buff *msg;
12887
58050fce 12888 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 12889 if (!msg)
12890 return;
12891
fd014284 12892 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 12893 NL80211_CMD_TRIGGER_SCAN) < 0) {
12894 nlmsg_free(msg);
12895 return;
12896 }
12897
68eb5503 12898 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12899 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 12900}
12901
f9d15d16
JB		 12902struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
12903 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 12904{
12905 struct sk_buff *msg;
12906
fd2120ca 12907 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 12908 if (!msg)
f9d15d16 12909 return NULL;
2a519311 12910
fd014284 12911 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 12912 aborted ? NL80211_CMD_SCAN_ABORTED :
12913 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 12914 nlmsg_free(msg);
f9d15d16 12915 return NULL;
2a519311
JB		 12916 }
12917
f9d15d16 12918 return msg;
2a519311
JB		 12919}
12920
f9d15d16
JB		 12921void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12922 struct sk_buff *msg)
2a519311 12923{
2a519311
JB		 12924 if (!msg)
12925 return;
12926
68eb5503 12927 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12928 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 12929}
12930
807f8a8c
LC		 12931void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12932 struct net_device *netdev)
12933{
12934 struct sk_buff *msg;
12935
12936 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12937 if (!msg)
12938 return;
12939
12940 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12941 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12942 nlmsg_free(msg);
12943 return;
12944 }
12945
68eb5503 12946 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12947 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12948}
12949
12950void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12951 struct net_device *netdev, u32 cmd)
12952{
12953 struct sk_buff *msg;
12954
58050fce 12955 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 12956 if (!msg)
12957 return;
12958
12959 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12960 nlmsg_free(msg);
12961 return;
12962 }
12963
68eb5503 12964 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12965 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12966}
12967
b0d7aa59
JD		 12968static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12969 struct regulatory_request *request)
73d54c9e 12970{
73d54c9e 12971 /* Userspace can always count this one always being set */
9360ffd1
DM		 12972 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12973 goto nla_put_failure;
12974
12975 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12976 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12977 NL80211_REGDOM_TYPE_WORLD))
12978 goto nla_put_failure;
12979 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12980 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12981 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12982 goto nla_put_failure;
12983 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12984 request->intersect) {
12985 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12986 NL80211_REGDOM_TYPE_INTERSECTION))
12987 goto nla_put_failure;
12988 } else {
12989 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12990 NL80211_REGDOM_TYPE_COUNTRY) ||
12991 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12992 request->alpha2))
12993 goto nla_put_failure;
12994 }
12995
ad30ca2c
AN		 12996 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12997 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12998
12999 if (wiphy &&
13000 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13001 goto nla_put_failure;
1bdd716c
AN		 13002
13003 if (wiphy &&
13004 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13005 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13006 goto nla_put_failure;
ad30ca2c 13007 }
73d54c9e 13008
b0d7aa59
JD		 13009 return true;
13010
13011nla_put_failure:
13012 return false;
13013}
13014
13015/*
13016 * This can happen on global regulatory changes or device specific settings
13017 * based on custom regulatory domains.
13018 */
13019void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13020 struct regulatory_request *request)
13021{
13022 struct sk_buff *msg;
13023 void *hdr;
13024
13025 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13026 if (!msg)
13027 return;
13028
13029 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13030 if (!hdr) {
13031 nlmsg_free(msg);
13032 return;
13033 }
13034
13035 if (nl80211_reg_change_event_fill(msg, request) == false)
13036 goto nla_put_failure;
13037
3b7b72ee 13038 genlmsg_end(msg, hdr);
73d54c9e 13039
bc43b28c 13040 rcu_read_lock();
68eb5503 13041 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13042 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 13043 rcu_read_unlock();
73d54c9e
LR		 13044
13045 return;
13046
13047nla_put_failure:
13048 genlmsg_cancel(msg, hdr);
13049 nlmsg_free(msg);
13050}
13051
6039f6d2
JM		 13052static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13053 struct net_device *netdev,
13054 const u8 *buf, size_t len,
b0b6aa2c
EP		 13055 enum nl80211_commands cmd, gfp_t gfp,
13056 int uapsd_queues)
6039f6d2
JM		 13057{
13058 struct sk_buff *msg;
13059 void *hdr;
13060
e6d6e342 13061 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 13062 if (!msg)
13063 return;
13064
13065 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13066 if (!hdr) {
13067 nlmsg_free(msg);
13068 return;
13069 }
13070
9360ffd1
DM		 13071 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13072 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13073 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13074 goto nla_put_failure;
6039f6d2 13075
b0b6aa2c
EP		 13076 if (uapsd_queues >= 0) {
13077 struct nlattr *nla_wmm =
13078 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13079 if (!nla_wmm)
13080 goto nla_put_failure;
13081
13082 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13083 uapsd_queues))
13084 goto nla_put_failure;
13085
13086 nla_nest_end(msg, nla_wmm);
13087 }
13088
3b7b72ee 13089 genlmsg_end(msg, hdr);
6039f6d2 13090
68eb5503 13091 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13092 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 13093 return;
13094
13095 nla_put_failure:
13096 genlmsg_cancel(msg, hdr);
13097 nlmsg_free(msg);
13098}
13099
13100void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13101 struct net_device *netdev, const u8 *buf,
13102 size_t len, gfp_t gfp)
6039f6d2
JM		 13103{
13104 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13105 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 13106}
13107
13108void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13109 struct net_device *netdev, const u8 *buf,
b0b6aa2c 13110 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 13111{
e6d6e342 13112 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13113 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 13114}
13115
53b46b84 13116void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13117 struct net_device *netdev, const u8 *buf,
13118 size_t len, gfp_t gfp)
6039f6d2
JM		 13119{
13120 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13121 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 13122}
13123
53b46b84
JM		 13124void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13125 struct net_device *netdev, const u8 *buf,
e6d6e342 13126 size_t len, gfp_t gfp)
6039f6d2
JM		 13127{
13128 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13129 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 13130}
13131
6ff57cf8
JB		 13132void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13133 size_t len)
cf4e594e 13134{
947add36
JB		 13135 struct wireless_dev *wdev = dev->ieee80211_ptr;
13136 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13137 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 13138 const struct ieee80211_mgmt *mgmt = (void *)buf;
13139 u32 cmd;
947add36 13140
6ff57cf8
JB		 13141 if (WARN_ON(len < 2))
13142 return;
cf4e594e 13143
6ff57cf8
JB		 13144 if (ieee80211_is_deauth(mgmt->frame_control))
13145 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13146 else
13147 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13148
6ff57cf8 13149 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13150 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13151}
6ff57cf8 13152EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13153
1b06bb40
LR		 13154static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13155 struct net_device *netdev, int cmd,
e6d6e342 13156 const u8 *addr, gfp_t gfp)
1965c853
JM		 13157{
13158 struct sk_buff *msg;
13159 void *hdr;
13160
e6d6e342 13161 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13162 if (!msg)
13163 return;
13164
13165 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13166 if (!hdr) {
13167 nlmsg_free(msg);
13168 return;
13169 }
13170
9360ffd1
DM		 13171 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13172 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13173 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13174 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13175 goto nla_put_failure;
1965c853 13176
3b7b72ee 13177 genlmsg_end(msg, hdr);
1965c853 13178
68eb5503 13179 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13180 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13181 return;
13182
13183 nla_put_failure:
13184 genlmsg_cancel(msg, hdr);
13185 nlmsg_free(msg);
13186}
13187
13188void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13189 struct net_device *netdev, const u8 *addr,
13190 gfp_t gfp)
1965c853
JM		 13191{
13192 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13193 addr, gfp);
1965c853
JM		 13194}
13195
13196void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13197 struct net_device *netdev, const u8 *addr,
13198 gfp_t gfp)
1965c853 13199{
e6d6e342
JB		 13200 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13201 addr, gfp);
1965c853
JM		 13202}
13203
b23aa676
SO		 13204void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
13205 struct net_device *netdev, const u8 *bssid,
13206 const u8 *req_ie, size_t req_ie_len,
13207 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 13208 int status, gfp_t gfp)
b23aa676
SO		 13209{
13210 struct sk_buff *msg;
13211 void *hdr;
13212
58050fce 13213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 13214 if (!msg)
13215 return;
13216
13217 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13218 if (!hdr) {
13219 nlmsg_free(msg);
13220 return;
13221 }
13222
9360ffd1
DM		 13223 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13224 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13225 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 13226 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
13227 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13228 status) ||
13229 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 13230 (req_ie &&
13231 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13232 (resp_ie &&
13233 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13234 goto nla_put_failure;
b23aa676 13235
3b7b72ee 13236 genlmsg_end(msg, hdr);
b23aa676 13237
68eb5503 13238 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13239 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13240 return;
13241
13242 nla_put_failure:
13243 genlmsg_cancel(msg, hdr);
13244 nlmsg_free(msg);
b23aa676
SO		 13245}
13246
13247void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13248 struct net_device *netdev, const u8 *bssid,
13249 const u8 *req_ie, size_t req_ie_len,
13250 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
13251{
13252 struct sk_buff *msg;
13253 void *hdr;
13254
58050fce 13255 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 13256 if (!msg)
13257 return;
13258
13259 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13260 if (!hdr) {
13261 nlmsg_free(msg);
13262 return;
13263 }
13264
9360ffd1
DM		 13265 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13266 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13267 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13268 (req_ie &&
13269 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13270 (resp_ie &&
13271 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13272 goto nla_put_failure;
b23aa676 13273
3b7b72ee 13274 genlmsg_end(msg, hdr);
b23aa676 13275
68eb5503 13276 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13277 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13278 return;
13279
13280 nla_put_failure:
13281 genlmsg_cancel(msg, hdr);
13282 nlmsg_free(msg);
b23aa676
SO		 13283}
13284
13285void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13286 struct net_device *netdev, u16 reason,
667503dd 13287 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13288{
13289 struct sk_buff *msg;
13290 void *hdr;
13291
58050fce 13292 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 13293 if (!msg)
13294 return;
13295
13296 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13297 if (!hdr) {
13298 nlmsg_free(msg);
13299 return;
13300 }
13301
9360ffd1
DM		 13302 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13303 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13304 (from_ap && reason &&
13305 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13306 (from_ap &&
13307 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13308 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13309 goto nla_put_failure;
b23aa676 13310
3b7b72ee 13311 genlmsg_end(msg, hdr);
b23aa676 13312
68eb5503 13313 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13314 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13315 return;
13316
13317 nla_put_failure:
13318 genlmsg_cancel(msg, hdr);
13319 nlmsg_free(msg);
b23aa676
SO		 13320}
13321
04a773ad
JB		 13322void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13323 struct net_device *netdev, const u8 *bssid,
13324 gfp_t gfp)
13325{
13326 struct sk_buff *msg;
13327 void *hdr;
13328
fd2120ca 13329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13330 if (!msg)
13331 return;
13332
13333 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13334 if (!hdr) {
13335 nlmsg_free(msg);
13336 return;
13337 }
13338
9360ffd1
DM		 13339 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13340 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13341 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13342 goto nla_put_failure;
04a773ad 13343
3b7b72ee 13344 genlmsg_end(msg, hdr);
04a773ad 13345
68eb5503 13346 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13347 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 13348 return;
13349
13350 nla_put_failure:
13351 genlmsg_cancel(msg, hdr);
13352 nlmsg_free(msg);
13353}
13354
947add36
JB		 13355void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13356 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 13357{
947add36 13358 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13359 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 13360 struct sk_buff *msg;
13361 void *hdr;
13362
947add36
JB		 13363 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13364 return;
13365
13366 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13367
c93b5e71
JC		 13368 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13369 if (!msg)
13370 return;
13371
13372 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13373 if (!hdr) {
13374 nlmsg_free(msg);
13375 return;
13376 }
13377
9360ffd1 13378 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 13379 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13380 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 13381 (ie_len && ie &&
13382 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13383 goto nla_put_failure;
c93b5e71 13384
3b7b72ee 13385 genlmsg_end(msg, hdr);
c93b5e71 13386
68eb5503 13387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13388 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 13389 return;
13390
13391 nla_put_failure:
13392 genlmsg_cancel(msg, hdr);
13393 nlmsg_free(msg);
13394}
947add36 13395EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 13396
a3b8b056
JM		 13397void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13398 struct net_device *netdev, const u8 *addr,
13399 enum nl80211_key_type key_type, int key_id,
e6d6e342 13400 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 13401{
13402 struct sk_buff *msg;
13403 void *hdr;
13404
e6d6e342 13405 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 13406 if (!msg)
13407 return;
13408
13409 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13410 if (!hdr) {
13411 nlmsg_free(msg);
13412 return;
13413 }
13414
9360ffd1
DM		 13415 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13416 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13417 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13418 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13419 (key_id != -1 &&
13420 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13421 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13422 goto nla_put_failure;
a3b8b056 13423
3b7b72ee 13424 genlmsg_end(msg, hdr);
a3b8b056 13425
68eb5503 13426 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13427 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 13428 return;
13429
13430 nla_put_failure:
13431 genlmsg_cancel(msg, hdr);
13432 nlmsg_free(msg);
13433}
13434
6bad8766
LR		 13435void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13436 struct ieee80211_channel *channel_before,
13437 struct ieee80211_channel *channel_after)
13438{
13439 struct sk_buff *msg;
13440 void *hdr;
13441 struct nlattr *nl_freq;
13442
fd2120ca 13443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 13444 if (!msg)
13445 return;
13446
13447 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13448 if (!hdr) {
13449 nlmsg_free(msg);
13450 return;
13451 }
13452
13453 /*
13454 * Since we are applying the beacon hint to a wiphy we know its
13455 * wiphy_idx is valid
13456 */
9360ffd1
DM		 13457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13458 goto nla_put_failure;
6bad8766
LR		 13459
13460 /* Before */
13461 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13462 if (!nl_freq)
13463 goto nla_put_failure;
cdc89b97 13464 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 13465 goto nla_put_failure;
13466 nla_nest_end(msg, nl_freq);
13467
13468 /* After */
13469 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
13470 if (!nl_freq)
13471 goto nla_put_failure;
cdc89b97 13472 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 13473 goto nla_put_failure;
13474 nla_nest_end(msg, nl_freq);
13475
3b7b72ee 13476 genlmsg_end(msg, hdr);
6bad8766 13477
463d0183 13478 rcu_read_lock();
68eb5503 13479 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13480 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 13481 rcu_read_unlock();
6bad8766
LR		 13482
13483 return;
13484
13485nla_put_failure:
13486 genlmsg_cancel(msg, hdr);
13487 nlmsg_free(msg);
13488}
13489
9588bbd5
JM		 13490static void nl80211_send_remain_on_chan_event(
13491 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 13492 struct wireless_dev *wdev, u64 cookie,
9588bbd5 13493 struct ieee80211_channel *chan,
9588bbd5
JM		 13494 unsigned int duration, gfp_t gfp)
13495{
13496 struct sk_buff *msg;
13497 void *hdr;
13498
13499 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13500 if (!msg)
13501 return;
13502
13503 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13504 if (!hdr) {
13505 nlmsg_free(msg);
13506 return;
13507 }
13508
9360ffd1 13509 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13510 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13511 wdev->netdev->ifindex)) ||
2dad624e
ND		 13512 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13513 NL80211_ATTR_PAD) ||
9360ffd1 13514 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 13515 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
13516 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 13517 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13518 NL80211_ATTR_PAD))
9360ffd1 13519 goto nla_put_failure;
9588bbd5 13520
9360ffd1
DM		 13521 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
13522 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
13523 goto nla_put_failure;
9588bbd5 13524
3b7b72ee 13525 genlmsg_end(msg, hdr);
9588bbd5 13526
68eb5503 13527 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13528 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 13529 return;
13530
13531 nla_put_failure:
13532 genlmsg_cancel(msg, hdr);
13533 nlmsg_free(msg);
13534}
13535
947add36
JB		 13536void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
13537 struct ieee80211_channel *chan,
13538 unsigned int duration, gfp_t gfp)
9588bbd5 13539{
947add36 13540 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13541 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13542
13543 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 13544 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 13545 rdev, wdev, cookie, chan,
42d97a59 13546 duration, gfp);
9588bbd5 13547}
947add36 13548EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 13549
947add36
JB		 13550void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
13551 struct ieee80211_channel *chan,
13552 gfp_t gfp)
9588bbd5 13553{
947add36 13554 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13555 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13556
13557 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 13558 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 13559 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 13560}
947add36 13561EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 13562
947add36
JB		 13563void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
13564 struct station_info *sinfo, gfp_t gfp)
98b62183 13565{
947add36 13566 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13567 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 13568 struct sk_buff *msg;
13569
947add36
JB		 13570 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
13571
58050fce 13572 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 13573 if (!msg)
13574 return;
13575
cf5ead82 13576 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 13577 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 13578 nlmsg_free(msg);
13579 return;
13580 }
13581
68eb5503 13582 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13583 NL80211_MCGRP_MLME, gfp);
98b62183 13584}
947add36 13585EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 13586
cf5ead82
JB		 13587void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
13588 struct station_info *sinfo, gfp_t gfp)
ec15e68b 13589{
947add36 13590 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13591 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 13592 struct sk_buff *msg;
cf5ead82
JB		 13593 struct station_info empty_sinfo = {};
13594
13595 if (!sinfo)
13596 sinfo = &empty_sinfo;
ec15e68b 13597
947add36
JB		 13598 trace_cfg80211_del_sta(dev, mac_addr);
13599
58050fce 13600 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 13601 if (!msg)
13602 return;
13603
cf5ead82 13604 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 13605 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 13606 nlmsg_free(msg);
13607 return;
13608 }
13609
68eb5503 13610 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13611 NL80211_MCGRP_MLME, gfp);
ec15e68b 13612}
cf5ead82 13613EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 13614
947add36
JB		 13615void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
13616 enum nl80211_connect_failed_reason reason,
13617 gfp_t gfp)
ed44a951 13618{
947add36 13619 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13620 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 13621 struct sk_buff *msg;
13622 void *hdr;
13623
13624 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
13625 if (!msg)
13626 return;
13627
13628 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
13629 if (!hdr) {
13630 nlmsg_free(msg);
13631 return;
13632 }
13633
13634 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13635 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
13636 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
13637 goto nla_put_failure;
13638
13639 genlmsg_end(msg, hdr);
13640
68eb5503 13641 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13642 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 13643 return;
13644
13645 nla_put_failure:
13646 genlmsg_cancel(msg, hdr);
13647 nlmsg_free(msg);
13648}
947add36 13649EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 13650
b92ab5d8
JB		 13651static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
13652 const u8 *addr, gfp_t gfp)
28946da7
JB		 13653{
13654 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13655 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 13656 struct sk_buff *msg;
13657 void *hdr;
15e47304 13658 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 13659
15e47304 13660 if (!nlportid)
28946da7
JB		 13661 return false;
13662
13663 msg = nlmsg_new(100, gfp);
13664 if (!msg)
13665 return true;
13666
b92ab5d8 13667 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 13668 if (!hdr) {
13669 nlmsg_free(msg);
13670 return true;
13671 }
13672
9360ffd1
DM		 13673 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13674 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13675 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13676 goto nla_put_failure;
28946da7 13677
9c90a9f6 13678 genlmsg_end(msg, hdr);
15e47304 13679 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 13680 return true;
13681
13682 nla_put_failure:
13683 genlmsg_cancel(msg, hdr);
13684 nlmsg_free(msg);
13685 return true;
13686}
13687
947add36
JB		 13688bool cfg80211_rx_spurious_frame(struct net_device *dev,
13689 const u8 *addr, gfp_t gfp)
b92ab5d8 13690{
947add36
JB		 13691 struct wireless_dev *wdev = dev->ieee80211_ptr;
13692 bool ret;
13693
13694 trace_cfg80211_rx_spurious_frame(dev, addr);
13695
13696 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13697 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
13698 trace_cfg80211_return_bool(false);
13699 return false;
13700 }
13701 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
13702 addr, gfp);
13703 trace_cfg80211_return_bool(ret);
13704 return ret;
b92ab5d8 13705}
947add36 13706EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 13707
947add36
JB		 13708bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
13709 const u8 *addr, gfp_t gfp)
b92ab5d8 13710{
947add36
JB		 13711 struct wireless_dev *wdev = dev->ieee80211_ptr;
13712 bool ret;
13713
13714 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
13715
13716 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13717 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
13718 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
13719 trace_cfg80211_return_bool(false);
13720 return false;
13721 }
13722 ret = __nl80211_unexpected_frame(dev,
13723 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
13724 addr, gfp);
13725 trace_cfg80211_return_bool(ret);
13726 return ret;
b92ab5d8 13727}
947add36 13728EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 13729
2e161f78 13730int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 13731 struct wireless_dev *wdev, u32 nlportid,
804483e9 13732 int freq, int sig_dbm,
19504cf5 13733 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 13734{
71bbc994 13735 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13736 struct sk_buff *msg;
13737 void *hdr;
026331c4
JM		 13738
13739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13740 if (!msg)
13741 return -ENOMEM;
13742
2e161f78 13743 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 13744 if (!hdr) {
13745 nlmsg_free(msg);
13746 return -ENOMEM;
13747 }
13748
9360ffd1 13749 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13750 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13751 netdev->ifindex)) ||
2dad624e
ND		 13752 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13753 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13754 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
13755 (sig_dbm &&
13756 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 13757 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13758 (flags &&
13759 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 13760 goto nla_put_failure;
026331c4 13761
3b7b72ee 13762 genlmsg_end(msg, hdr);
026331c4 13763
15e47304 13764 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 13765
13766 nla_put_failure:
13767 genlmsg_cancel(msg, hdr);
13768 nlmsg_free(msg);
13769 return -ENOBUFS;
13770}
13771
947add36
JB		 13772void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
13773 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 13774{
947add36 13775 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13776 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 13777 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13778 struct sk_buff *msg;
13779 void *hdr;
13780
947add36
JB		 13781 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
13782
026331c4
JM		 13783 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13784 if (!msg)
13785 return;
13786
2e161f78 13787 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 13788 if (!hdr) {
13789 nlmsg_free(msg);
13790 return;
13791 }
13792
9360ffd1 13793 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13794 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13795 netdev->ifindex)) ||
2dad624e
ND		 13796 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13797 NL80211_ATTR_PAD) ||
9360ffd1 13798 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 13799 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13800 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13801 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
13802 goto nla_put_failure;
026331c4 13803
3b7b72ee 13804 genlmsg_end(msg, hdr);
026331c4 13805
68eb5503 13806 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13807 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 13808 return;
13809
13810 nla_put_failure:
13811 genlmsg_cancel(msg, hdr);
13812 nlmsg_free(msg);
13813}
947add36 13814EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 13815
5b97f49d
JB		 13816static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
13817 const char *mac, gfp_t gfp)
d6dc1a38 13818{
947add36 13819 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 13820 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13821 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13822 void **cb;
947add36 13823
d6dc1a38 13824 if (!msg)
5b97f49d 13825 return NULL;
d6dc1a38 13826
5b97f49d
JB		 13827 cb = (void **)msg->cb;
13828
13829 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
13830 if (!cb[0]) {
d6dc1a38 13831 nlmsg_free(msg);
5b97f49d 13832 return NULL;
d6dc1a38
JO		 13833 }
13834
9360ffd1 13835 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 13836 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 13837 goto nla_put_failure;
d6dc1a38 13838
5b97f49d 13839 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 13840 goto nla_put_failure;
13841
5b97f49d
JB		 13842 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
13843 if (!cb[1])
9360ffd1 13844 goto nla_put_failure;
d6dc1a38 13845
5b97f49d 13846 cb[2] = rdev;
d6dc1a38 13847
5b97f49d
JB		 13848 return msg;
13849 nla_put_failure:
13850 nlmsg_free(msg);
13851 return NULL;
13852}
13853
13854static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
13855{
13856 void **cb = (void **)msg->cb;
13857 struct cfg80211_registered_device *rdev = cb[2];
13858
13859 nla_nest_end(msg, cb[1]);
13860 genlmsg_end(msg, cb[0]);
13861
13862 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 13863
68eb5503 13864 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13865 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 13866}
13867
13868void cfg80211_cqm_rssi_notify(struct net_device *dev,
13869 enum nl80211_cqm_rssi_threshold_event rssi_event,
13870 gfp_t gfp)
13871{
13872 struct sk_buff *msg;
13873
13874 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
13875
98f03342
JB		 13876 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13877 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13878 return;
13879
5b97f49d
JB		 13880 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13881 if (!msg)
13882 return;
13883
13884 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13885 rssi_event))
13886 goto nla_put_failure;
13887
13888 cfg80211_send_cqm(msg, gfp);
13889
d6dc1a38
JO		 13890 return;
13891
13892 nla_put_failure:
d6dc1a38
JO		 13893 nlmsg_free(msg);
13894}
947add36 13895EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 13896
5b97f49d
JB		 13897void cfg80211_cqm_txe_notify(struct net_device *dev,
13898 const u8 *peer, u32 num_packets,
13899 u32 rate, u32 intvl, gfp_t gfp)
13900{
13901 struct sk_buff *msg;
13902
13903 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13904 if (!msg)
13905 return;
13906
13907 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
13908 goto nla_put_failure;
13909
13910 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
13911 goto nla_put_failure;
13912
13913 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
13914 goto nla_put_failure;
13915
13916 cfg80211_send_cqm(msg, gfp);
13917 return;
13918
13919 nla_put_failure:
13920 nlmsg_free(msg);
13921}
13922EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13923
13924void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13925 const u8 *peer, u32 num_packets, gfp_t gfp)
13926{
13927 struct sk_buff *msg;
13928
13929 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13930
13931 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13932 if (!msg)
13933 return;
13934
13935 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13936 goto nla_put_failure;
13937
13938 cfg80211_send_cqm(msg, gfp);
13939 return;
13940
13941 nla_put_failure:
13942 nlmsg_free(msg);
13943}
13944EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13945
98f03342
JB		 13946void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13947{
13948 struct sk_buff *msg;
13949
13950 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13951 if (!msg)
13952 return;
13953
13954 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13955 goto nla_put_failure;
13956
13957 cfg80211_send_cqm(msg, gfp);
13958 return;
13959
13960 nla_put_failure:
13961 nlmsg_free(msg);
13962}
13963EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13964
947add36
JB		 13965static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13966 struct net_device *netdev, const u8 *bssid,
13967 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13968{
13969 struct sk_buff *msg;
13970 struct nlattr *rekey_attr;
13971 void *hdr;
13972
58050fce 13973 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13974 if (!msg)
13975 return;
13976
13977 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13978 if (!hdr) {
13979 nlmsg_free(msg);
13980 return;
13981 }
13982
9360ffd1
DM		 13983 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13984 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13985 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13986 goto nla_put_failure;
e5497d76
JB		 13987
13988 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13989 if (!rekey_attr)
13990 goto nla_put_failure;
13991
9360ffd1
DM		 13992 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13993 NL80211_REPLAY_CTR_LEN, replay_ctr))
13994 goto nla_put_failure;
e5497d76
JB		 13995
13996 nla_nest_end(msg, rekey_attr);
13997
3b7b72ee 13998 genlmsg_end(msg, hdr);
e5497d76 13999
68eb5503 14000 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14001 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 14002 return;
14003
14004 nla_put_failure:
14005 genlmsg_cancel(msg, hdr);
14006 nlmsg_free(msg);
14007}
14008
947add36
JB		 14009void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14010 const u8 *replay_ctr, gfp_t gfp)
14011{
14012 struct wireless_dev *wdev = dev->ieee80211_ptr;
14013 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14014 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14015
14016 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14017 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14018}
14019EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14020
14021static void
14022nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14023 struct net_device *netdev, int index,
14024 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 14025{
14026 struct sk_buff *msg;
14027 struct nlattr *attr;
14028 void *hdr;
14029
58050fce 14030 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 14031 if (!msg)
14032 return;
14033
14034 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14035 if (!hdr) {
14036 nlmsg_free(msg);
14037 return;
14038 }
14039
9360ffd1
DM		 14040 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14041 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14042 goto nla_put_failure;
c9df56b4
JM		 14043
14044 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14045 if (!attr)
14046 goto nla_put_failure;
14047
9360ffd1
DM		 14048 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14049 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14050 (preauth &&
14051 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14052 goto nla_put_failure;
c9df56b4
JM		 14053
14054 nla_nest_end(msg, attr);
14055
3b7b72ee 14056 genlmsg_end(msg, hdr);
c9df56b4 14057
68eb5503 14058 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14059 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 14060 return;
14061
14062 nla_put_failure:
14063 genlmsg_cancel(msg, hdr);
14064 nlmsg_free(msg);
14065}
14066
947add36
JB		 14067void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14068 const u8 *bssid, bool preauth, gfp_t gfp)
14069{
14070 struct wireless_dev *wdev = dev->ieee80211_ptr;
14071 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14072 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14073
14074 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14075 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14076}
14077EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14078
14079static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14080 struct net_device *netdev,
14081 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 14082 gfp_t gfp,
14083 enum nl80211_commands notif,
14084 u8 count)
5314526b
TP		 14085{
14086 struct sk_buff *msg;
14087 void *hdr;
14088
58050fce 14089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 14090 if (!msg)
14091 return;
14092
f8d7552e 14093 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 14094 if (!hdr) {
14095 nlmsg_free(msg);
14096 return;
14097 }
14098
683b6d3b
JB		 14099 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14100 goto nla_put_failure;
14101
14102 if (nl80211_send_chandef(msg, chandef))
7eab0f64 14103 goto nla_put_failure;
5314526b 14104
f8d7552e
LC		 14105 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14106 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14107 goto nla_put_failure;
14108
5314526b
TP		 14109 genlmsg_end(msg, hdr);
14110
68eb5503 14111 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14112 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 14113 return;
14114
14115 nla_put_failure:
14116 genlmsg_cancel(msg, hdr);
14117 nlmsg_free(msg);
14118}
14119
947add36
JB		 14120void cfg80211_ch_switch_notify(struct net_device *dev,
14121 struct cfg80211_chan_def *chandef)
84f10708 14122{
947add36
JB		 14123 struct wireless_dev *wdev = dev->ieee80211_ptr;
14124 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14125 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 14126
e487eaeb 14127 ASSERT_WDEV_LOCK(wdev);
947add36 14128
e487eaeb 14129 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 14130
9e0e2961 14131 wdev->chandef = *chandef;
96f55f12 14132 wdev->preset_chandef = *chandef;
f8d7552e
LC		 14133 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14134 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 14135}
14136EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14137
f8d7552e
LC		 14138void cfg80211_ch_switch_started_notify(struct net_device *dev,
14139 struct cfg80211_chan_def *chandef,
14140 u8 count)
14141{
14142 struct wireless_dev *wdev = dev->ieee80211_ptr;
14143 struct wiphy *wiphy = wdev->wiphy;
14144 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14145
14146 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14147
14148 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14149 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14150}
14151EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14152
04f39047
SW		 14153void
14154nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14155 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14156 enum nl80211_radar_event event,
14157 struct net_device *netdev, gfp_t gfp)
14158{
14159 struct sk_buff *msg;
14160 void *hdr;
14161
14162 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14163 if (!msg)
14164 return;
14165
14166 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14167 if (!hdr) {
14168 nlmsg_free(msg);
14169 return;
14170 }
14171
14172 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14173 goto nla_put_failure;
14174
14175 /* NOP and radar events don't need a netdev parameter */
14176 if (netdev) {
14177 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14178
14179 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14180 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14181 NL80211_ATTR_PAD))
04f39047
SW		 14182 goto nla_put_failure;
14183 }
14184
14185 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14186 goto nla_put_failure;
14187
14188 if (nl80211_send_chandef(msg, chandef))
14189 goto nla_put_failure;
14190
9c90a9f6 14191 genlmsg_end(msg, hdr);
04f39047 14192
68eb5503 14193 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14194 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14195 return;
14196
14197 nla_put_failure:
14198 genlmsg_cancel(msg, hdr);
14199 nlmsg_free(msg);
14200}
14201
7f6cf311
JB		 14202void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14203 u64 cookie, bool acked, gfp_t gfp)
14204{
14205 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14206 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14207 struct sk_buff *msg;
14208 void *hdr;
7f6cf311 14209
4ee3e063
BL		 14210 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14211
58050fce 14212 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14213
7f6cf311
JB		 14214 if (!msg)
14215 return;
14216
14217 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14218 if (!hdr) {
14219 nlmsg_free(msg);
14220 return;
14221 }
14222
9360ffd1
DM		 14223 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14224 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14225 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14226 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14227 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14228 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14229 goto nla_put_failure;
7f6cf311 14230
9c90a9f6 14231 genlmsg_end(msg, hdr);
7f6cf311 14232
68eb5503 14233 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14234 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14235 return;
14236
14237 nla_put_failure:
14238 genlmsg_cancel(msg, hdr);
14239 nlmsg_free(msg);
14240}
14241EXPORT_SYMBOL(cfg80211_probe_status);
14242
5e760230
JB		 14243void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14244 const u8 *frame, size_t len,
37c73b5f 14245 int freq, int sig_dbm)
5e760230 14246{
f26cbf40 14247 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14248 struct sk_buff *msg;
14249 void *hdr;
37c73b5f 14250 struct cfg80211_beacon_registration *reg;
5e760230 14251
4ee3e063
BL		 14252 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14253
37c73b5f
BG		 14254 spin_lock_bh(&rdev->beacon_registrations_lock);
14255 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14256 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14257 if (!msg) {
14258 spin_unlock_bh(&rdev->beacon_registrations_lock);
14259 return;
14260 }
5e760230 14261
37c73b5f
BG		 14262 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14263 if (!hdr)
14264 goto nla_put_failure;
5e760230 14265
37c73b5f
BG		 14266 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14267 (freq &&
14268 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14269 (sig_dbm &&
14270 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14271 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14272 goto nla_put_failure;
5e760230 14273
37c73b5f 14274 genlmsg_end(msg, hdr);
5e760230 14275
37c73b5f
BG		 14276 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14277 }
14278 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14279 return;
14280
14281 nla_put_failure:
37c73b5f
BG		 14282 spin_unlock_bh(&rdev->beacon_registrations_lock);
14283 if (hdr)
14284 genlmsg_cancel(msg, hdr);
5e760230
JB		 14285 nlmsg_free(msg);
14286}
14287EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14288
cd8f7cb4 14289#ifdef CONFIG_PM
8cd4d456
LC		 14290static int cfg80211_net_detect_results(struct sk_buff *msg,
14291 struct cfg80211_wowlan_wakeup *wakeup)
14292{
14293 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14294 struct nlattr *nl_results, *nl_match, *nl_freqs;
14295 int i, j;
14296
14297 nl_results = nla_nest_start(
14298 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14299 if (!nl_results)
14300 return -EMSGSIZE;
14301
14302 for (i = 0; i < nd->n_matches; i++) {
14303 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14304
14305 nl_match = nla_nest_start(msg, i);
14306 if (!nl_match)
14307 break;
14308
14309 /* The SSID attribute is optional in nl80211, but for
14310 * simplicity reasons it's always present in the
14311 * cfg80211 structure. If a driver can't pass the
14312 * SSID, that needs to be changed. A zero length SSID
14313 * is still a valid SSID (wildcard), so it cannot be
14314 * used for this purpose.
14315 */
14316 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14317 match->ssid.ssid)) {
14318 nla_nest_cancel(msg, nl_match);
14319 goto out;
14320 }
14321
14322 if (match->n_channels) {
14323 nl_freqs = nla_nest_start(
14324 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14325 if (!nl_freqs) {
14326 nla_nest_cancel(msg, nl_match);
14327 goto out;
14328 }
14329
14330 for (j = 0; j < match->n_channels; j++) {
5528fae8 14331 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 14332 nla_nest_cancel(msg, nl_freqs);
14333 nla_nest_cancel(msg, nl_match);
14334 goto out;
14335 }
14336 }
14337
14338 nla_nest_end(msg, nl_freqs);
14339 }
14340
14341 nla_nest_end(msg, nl_match);
14342 }
14343
14344out:
14345 nla_nest_end(msg, nl_results);
14346 return 0;
14347}
14348
cd8f7cb4
JB		 14349void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14350 struct cfg80211_wowlan_wakeup *wakeup,
14351 gfp_t gfp)
14352{
f26cbf40 14353 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 14354 struct sk_buff *msg;
14355 void *hdr;
9c90a9f6 14356 int size = 200;
cd8f7cb4
JB		 14357
14358 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14359
14360 if (wakeup)
14361 size += wakeup->packet_present_len;
14362
14363 msg = nlmsg_new(size, gfp);
14364 if (!msg)
14365 return;
14366
14367 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14368 if (!hdr)
14369 goto free_msg;
14370
14371 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14372 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14373 NL80211_ATTR_PAD))
cd8f7cb4
JB		 14374 goto free_msg;
14375
14376 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14377 wdev->netdev->ifindex))
14378 goto free_msg;
14379
14380 if (wakeup) {
14381 struct nlattr *reasons;
14382
14383 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 14384 if (!reasons)
14385 goto free_msg;
cd8f7cb4
JB		 14386
14387 if (wakeup->disconnect &&
14388 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14389 goto free_msg;
14390 if (wakeup->magic_pkt &&
14391 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14392 goto free_msg;
14393 if (wakeup->gtk_rekey_failure &&
14394 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14395 goto free_msg;
14396 if (wakeup->eap_identity_req &&
14397 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14398 goto free_msg;
14399 if (wakeup->four_way_handshake &&
14400 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14401 goto free_msg;
14402 if (wakeup->rfkill_release &&
14403 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14404 goto free_msg;
14405
14406 if (wakeup->pattern_idx >= 0 &&
14407 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14408 wakeup->pattern_idx))
14409 goto free_msg;
14410
ae917c9f
JB		 14411 if (wakeup->tcp_match &&
14412 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14413 goto free_msg;
2a0e047e 14414
ae917c9f
JB		 14415 if (wakeup->tcp_connlost &&
14416 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14417 goto free_msg;
2a0e047e 14418
ae917c9f
JB		 14419 if (wakeup->tcp_nomoretokens &&
14420 nla_put_flag(msg,
14421 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14422 goto free_msg;
2a0e047e 14423
cd8f7cb4
JB		 14424 if (wakeup->packet) {
14425 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14426 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14427
14428 if (!wakeup->packet_80211) {
14429 pkt_attr =
14430 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14431 len_attr =
14432 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14433 }
14434
14435 if (wakeup->packet_len &&
14436 nla_put_u32(msg, len_attr, wakeup->packet_len))
14437 goto free_msg;
14438
14439 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14440 wakeup->packet))
14441 goto free_msg;
14442 }
14443
8cd4d456
LC		 14444 if (wakeup->net_detect &&
14445 cfg80211_net_detect_results(msg, wakeup))
14446 goto free_msg;
14447
cd8f7cb4
JB		 14448 nla_nest_end(msg, reasons);
14449 }
14450
9c90a9f6 14451 genlmsg_end(msg, hdr);
cd8f7cb4 14452
68eb5503 14453 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14454 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 14455 return;
14456
14457 free_msg:
14458 nlmsg_free(msg);
14459}
14460EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
14461#endif
14462
3475b094
JM		 14463void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
14464 enum nl80211_tdls_operation oper,
14465 u16 reason_code, gfp_t gfp)
14466{
14467 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14468 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 14469 struct sk_buff *msg;
14470 void *hdr;
3475b094
JM		 14471
14472 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
14473 reason_code);
14474
14475 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14476 if (!msg)
14477 return;
14478
14479 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
14480 if (!hdr) {
14481 nlmsg_free(msg);
14482 return;
14483 }
14484
14485 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14486 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14487 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
14488 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
14489 (reason_code > 0 &&
14490 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
14491 goto nla_put_failure;
14492
9c90a9f6 14493 genlmsg_end(msg, hdr);
3475b094 14494
68eb5503 14495 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14496 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 14497 return;
14498
14499 nla_put_failure:
14500 genlmsg_cancel(msg, hdr);
14501 nlmsg_free(msg);
14502}
14503EXPORT_SYMBOL(cfg80211_tdls_oper_request);
14504
026331c4
JM		 14505static int nl80211_netlink_notify(struct notifier_block * nb,
14506 unsigned long state,
14507 void *_notify)
14508{
14509 struct netlink_notify *notify = _notify;
14510 struct cfg80211_registered_device *rdev;
14511 struct wireless_dev *wdev;
37c73b5f 14512 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 14513
8f815cdd 14514 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 14515 return NOTIFY_DONE;
14516
14517 rcu_read_lock();
14518
5e760230 14519 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 14520 bool schedule_destroy_work = false;
93a1e86c
JR		 14521 struct cfg80211_sched_scan_request *sched_scan_req =
14522 rcu_dereference(rdev->sched_scan_req);
14523
14524 if (sched_scan_req && notify->portid &&
753aacfd
JB		 14525 sched_scan_req->owner_nlportid == notify->portid) {
14526 sched_scan_req->owner_nlportid = 0;
14527
14528 if (rdev->ops->sched_scan_stop &&
14529 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
14530 schedule_work(&rdev->sched_scan_stop_wk);
14531 }
78f22b6a 14532
53873f13 14533 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 14534 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 14535
78f22b6a
JB		 14536 if (wdev->owner_nlportid == notify->portid)
14537 schedule_destroy_work = true;
14538 }
14539
37c73b5f
BG		 14540 spin_lock_bh(&rdev->beacon_registrations_lock);
14541 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
14542 list) {
14543 if (reg->nlportid == notify->portid) {
14544 list_del(&reg->list);
14545 kfree(reg);
14546 break;
14547 }
14548 }
14549 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 14550
14551 if (schedule_destroy_work) {
14552 struct cfg80211_iface_destroy *destroy;
14553
14554 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
14555 if (destroy) {
14556 destroy->nlportid = notify->portid;
14557 spin_lock(&rdev->destroy_list_lock);
14558 list_add(&destroy->list, &rdev->destroy_list);
14559 spin_unlock(&rdev->destroy_list_lock);
14560 schedule_work(&rdev->destroy_work);
14561 }
14562 }
5e760230 14563 }
026331c4
JM		 14564
14565 rcu_read_unlock();
14566
05050753
I		 14567 /*
14568 * It is possible that the user space process that is controlling the
14569 * indoor setting disappeared, so notify the regulatory core.
14570 */
14571 regulatory_netlink_notify(notify->portid);
6784c7db 14572 return NOTIFY_OK;
026331c4
JM		 14573}
14574
14575static struct notifier_block nl80211_netlink_notifier = {
14576 .notifier_call = nl80211_netlink_notify,
14577};
14578
355199e0
JM		 14579void cfg80211_ft_event(struct net_device *netdev,
14580 struct cfg80211_ft_event_params *ft_event)
14581{
14582 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 14583 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 14584 struct sk_buff *msg;
14585 void *hdr;
355199e0
JM		 14586
14587 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
14588
14589 if (!ft_event->target_ap)
14590 return;
14591
14592 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14593 if (!msg)
14594 return;
14595
14596 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 14597 if (!hdr)
14598 goto out;
355199e0 14599
ae917c9f
JB		 14600 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14601 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14602 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
14603 goto out;
355199e0 14604
ae917c9f
JB		 14605 if (ft_event->ies &&
14606 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
14607 goto out;
14608 if (ft_event->ric_ies &&
14609 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
14610 ft_event->ric_ies))
14611 goto out;
355199e0 14612
9c90a9f6 14613 genlmsg_end(msg, hdr);
355199e0 14614
68eb5503 14615 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14616 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 14617 return;
14618 out:
14619 nlmsg_free(msg);
355199e0
JM		 14620}
14621EXPORT_SYMBOL(cfg80211_ft_event);
14622
5de17984
AS		 14623void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
14624{
14625 struct cfg80211_registered_device *rdev;
14626 struct sk_buff *msg;
14627 void *hdr;
14628 u32 nlportid;
14629
f26cbf40 14630 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 14631 if (!rdev->crit_proto_nlportid)
14632 return;
14633
14634 nlportid = rdev->crit_proto_nlportid;
14635 rdev->crit_proto_nlportid = 0;
14636
14637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14638 if (!msg)
14639 return;
14640
14641 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
14642 if (!hdr)
14643 goto nla_put_failure;
14644
14645 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14646 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14647 NL80211_ATTR_PAD))
5de17984
AS		 14648 goto nla_put_failure;
14649
14650 genlmsg_end(msg, hdr);
14651
14652 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14653 return;
14654
14655 nla_put_failure:
14656 if (hdr)
14657 genlmsg_cancel(msg, hdr);
14658 nlmsg_free(msg);
5de17984
AS		 14659}
14660EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
14661
348baf0e
JB		 14662void nl80211_send_ap_stopped(struct wireless_dev *wdev)
14663{
14664 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14665 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 14666 struct sk_buff *msg;
14667 void *hdr;
14668
14669 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14670 if (!msg)
14671 return;
14672
14673 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
14674 if (!hdr)
14675 goto out;
14676
14677 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14678 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 14679 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14680 NL80211_ATTR_PAD))
348baf0e
JB		 14681 goto out;
14682
14683 genlmsg_end(msg, hdr);
14684
14685 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
14686 NL80211_MCGRP_MLME, GFP_KERNEL);
14687 return;
14688 out:
14689 nlmsg_free(msg);
14690}
14691
55682965
JB		 14692/* initialisation/exit functions */
14693
56989f6d 14694int __init nl80211_init(void)
55682965 14695{
0d63cbb5 14696 int err;
55682965 14697
489111e5 14698 err = genl_register_family(&nl80211_fam);
55682965
JB		 14699 if (err)
14700 return err;
14701
026331c4
JM		 14702 err = netlink_register_notifier(&nl80211_netlink_notifier);
14703 if (err)
14704 goto err_out;
14705
55682965
JB		 14706 return 0;
14707 err_out:
14708 genl_unregister_family(&nl80211_fam);
14709 return err;
14710}
14711
14712void nl80211_exit(void)
14713{
026331c4 14714 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 14715 genl_unregister_family(&nl80211_fam);
14716}
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