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net: dsa: bcm_sf2: Get VLAN_PORT_MASK from b53_device
[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
f84f771d 35static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 36 struct genl_info *info);
f84f771d 37static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 38 struct genl_info *info);
39
55682965
JB		 40/* the netlink family */
41static struct genl_family nl80211_fam = {
fb4e1568
MH		 42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
55682965 46 .maxattr = NL80211_ATTR_MAX,
463d0183 47 .netnsok = true,
4c476991
JB		 48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
55682965
JB		 50};
51
2a94fe48
JB		 52/* multicast groups */
53enum nl80211_multicast_groups {
54 NL80211_MCGRP_CONFIG,
55 NL80211_MCGRP_SCAN,
56 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_MLME,
567ffc35 58 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60};
61
62static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 68#ifdef CONFIG_NL80211_TESTMODE
71b836ec 69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 70#endif
71};
72
89a54e48
JB		 73/* returns ERR_PTR values */
74static struct wireless_dev *
75__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 76{
89a54e48
JB		 77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
81 u64 wdev_id;
82 int wiphy_idx = -1;
83 int ifidx = -1;
55682965 84
5fe231e8 85 ASSERT_RTNL();
55682965 86
89a54e48
JB		 87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
55682965 89
89a54e48
JB		 90 if (have_ifidx)
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 if (have_wdev_id) {
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
55682965
JB		 95 }
96
89a54e48
JB		 97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
99
100 if (wiphy_net(&rdev->wiphy) != netns)
101 continue;
102
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 continue;
105
53873f13 106 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
109 result = wdev;
110 break;
111 }
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 result = wdev;
114 break;
115 }
116 }
89a54e48
JB		 117
118 if (result)
119 break;
120 }
121
122 if (result)
123 return result;
124 return ERR_PTR(-ENODEV);
55682965
JB		 125}
126
a9455408 127static struct cfg80211_registered_device *
878d9ec7 128__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 129{
7fee4778
JB		 130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
a9455408 132
5fe231e8 133 ASSERT_RTNL();
a9455408 134
878d9ec7 135 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 138 return ERR_PTR(-EINVAL);
139
878d9ec7 140 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 141 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 143
89a54e48
JB		 144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
147 bool found = false;
148
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 if (tmp) {
151 /* make sure wdev exists */
53873f13 152 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 153 if (wdev->identifier != (u32)wdev_id)
154 continue;
155 found = true;
156 break;
157 }
89a54e48
JB		 158
159 if (!found)
160 tmp = NULL;
161
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164 rdev = tmp;
165 }
166 }
167
878d9ec7
JB		 168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 170
7f2b8562 171 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 172 if (netdev) {
173 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 174 tmp = wiphy_to_rdev(
175 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 176 else
177 tmp = NULL;
178
7fee4778
JB		 179 /* not wireless device -- return error */
180 if (!tmp)
181 return ERR_PTR(-EINVAL);
182
183 /* mismatch -- return error */
184 if (rdev && tmp != rdev)
185 return ERR_PTR(-EINVAL);
186
187 rdev = tmp;
a9455408 188 }
a9455408 189 }
a9455408 190
4f7eff10
JB		 191 if (!rdev)
192 return ERR_PTR(-ENODEV);
a9455408 193
4f7eff10
JB		 194 if (netns != wiphy_net(&rdev->wiphy))
195 return ERR_PTR(-ENODEV);
196
197 return rdev;
a9455408
JB		 198}
199
200/*
201 * This function returns a pointer to the driver
202 * that the genl_info item that is passed refers to.
a9455408
JB		 203 *
204 * The result of this can be a PTR_ERR and hence must
205 * be checked with IS_ERR() for errors.
206 */
207static struct cfg80211_registered_device *
4f7eff10 208cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 209{
5fe231e8 210 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 211}
212
55682965 213/* policy for the attributes */
8cd4d456 214static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 215 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
216 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 217 .len = 20-1 },
31888487 218 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 219
72bdcf34 220 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 221 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 222 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
224 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
225
b9a5f8ca
JM		 226 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
228 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 230 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 231 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 232
233 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 236
e007b857
EP		 237 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
238 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 239
b9454e83 240 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 241 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
242 .len = WLAN_MAX_KEY_LEN },
243 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
244 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
245 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 246 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 247 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 248
249 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
250 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
251 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 255 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
257 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
258 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
259 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 260 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 261 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 262 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 263 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 264 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 265 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 266
b2e1b302
LR		 267 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
268 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
269
9f1ba906
JM		 270 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 273 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
274 .len = NL80211_MAX_SUPP_RATES },
50b12f59 275 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 276
24bdd9f4 277 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 278 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 279
6c739419 280 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 281
282 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
283 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
284 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 285 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 287
288 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_SSID_LEN },
290 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
291 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 292 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 293 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 294 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 295 [NL80211_ATTR_STA_FLAGS2] = {
296 .len = sizeof(struct nl80211_sta_flag_update),
297 },
3f77316c 298 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 299 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
300 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 301 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
302 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
303 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 304 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 305 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 306 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
307 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 308 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
309 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 310 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 311 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 314 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 315 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 316 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 317 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 318 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
319 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 320 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 321 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
322 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 323 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 324 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 325 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 326 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 327 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 328 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 329 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 330 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 331 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 332 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 336 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 337 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 338 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 339 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 344 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
352 },
1d9d9213 353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 358 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 359 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 360 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 361 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
362 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 363 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
364 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 365 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
366 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 367 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 368 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
369 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
370 .len = NL80211_VHT_CAPABILITY_LEN,
371 },
355199e0
JM		 372 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
373 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
374 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 375 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 376 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
377 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
378 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 379 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
380 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 381 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
382 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 383 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 384 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 385 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
387 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 388 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
389 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 390 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
391 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 392 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 393 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 394 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 395 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 396 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
397 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
398 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 399 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 400 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 401 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 402 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 403 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 404 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 405 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 406 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 407 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 408 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
409 .len = VHT_MUMIMO_GROUPS_DATA_LEN
410 },
411 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
55682965
JB		 412};
413
e31b8213 414/* policy for the key attributes */
b54452b0 415static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 416 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 417 [NL80211_KEY_IDX] = { .type = NLA_U8 },
418 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 419 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 420 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 422 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 423 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
424};
425
426/* policy for the key default flags */
427static const struct nla_policy
428nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
429 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
430 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 431};
432
ff1b6e69
JB		 433/* policy for WoWLAN attributes */
434static const struct nla_policy
435nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
436 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 440 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
442 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 444 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 445 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 446};
447
448static const struct nla_policy
449nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
450 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
452 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
453 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
454 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
455 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
457 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
458 },
459 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
460 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
461 },
462 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
464 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 465};
466
be29b99a
AK		 467/* policy for coalesce rule attributes */
468static const struct nla_policy
469nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
470 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
471 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
472 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
473};
474
e5497d76
JB		 475/* policy for GTK rekey offload attributes */
476static const struct nla_policy
477nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
478 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
479 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
480 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
481};
482
a1f1c21c
LC		 483static const struct nla_policy
484nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 485 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 486 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 487 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 488};
489
3b06d277
AS		 490static const struct nla_policy
491nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
492 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
493 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
494};
495
38de03d2
AS		 496static const struct nla_policy
497nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
498 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
499 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
500 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
501 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
502 },
503};
504
97990a06
JB		 505static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
506 struct netlink_callback *cb,
507 struct cfg80211_registered_device **rdev,
508 struct wireless_dev **wdev)
a043897a 509{
97990a06 510 int err;
a043897a 511
97990a06 512 rtnl_lock();
a043897a 513
97990a06
JB		 514 if (!cb->args[0]) {
515 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
516 nl80211_fam.attrbuf, nl80211_fam.maxattr,
517 nl80211_policy);
518 if (err)
519 goto out_unlock;
67748893 520
97990a06
JB		 521 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
522 nl80211_fam.attrbuf);
523 if (IS_ERR(*wdev)) {
524 err = PTR_ERR(*wdev);
525 goto out_unlock;
526 }
f26cbf40 527 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 528 /* 0 is the first index - add 1 to parse only once */
529 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 530 cb->args[1] = (*wdev)->identifier;
531 } else {
c319d50b
JB		 532 /* subtract the 1 again here */
533 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 534 struct wireless_dev *tmp;
67748893 535
97990a06
JB		 536 if (!wiphy) {
537 err = -ENODEV;
538 goto out_unlock;
539 }
f26cbf40 540 *rdev = wiphy_to_rdev(wiphy);
97990a06 541 *wdev = NULL;
67748893 542
53873f13 543 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 544 if (tmp->identifier == cb->args[1]) {
545 *wdev = tmp;
546 break;
547 }
548 }
67748893 549
97990a06
JB		 550 if (!*wdev) {
551 err = -ENODEV;
552 goto out_unlock;
553 }
67748893
JB		 554 }
555
67748893 556 return 0;
97990a06 557 out_unlock:
67748893
JB		 558 rtnl_unlock();
559 return err;
560}
561
97990a06 562static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 563{
67748893
JB		 564 rtnl_unlock();
565}
566
f4a11bb0
JB		 567/* IE validation */
568static bool is_valid_ie_attr(const struct nlattr *attr)
569{
570 const u8 *pos;
571 int len;
572
573 if (!attr)
574 return true;
575
576 pos = nla_data(attr);
577 len = nla_len(attr);
578
579 while (len) {
580 u8 elemlen;
581
582 if (len < 2)
583 return false;
584 len -= 2;
585
586 elemlen = pos[1];
587 if (elemlen > len)
588 return false;
589
590 len -= elemlen;
591 pos += 2 + elemlen;
592 }
593
594 return true;
595}
596
55682965 597/* message building helper */
15e47304 598static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 599 int flags, u8 cmd)
600{
601 /* since there is no private header just add the generic one */
15e47304 602 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 603}
604
5dab3b8a 605static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 606 struct ieee80211_channel *chan,
607 bool large)
5dab3b8a 608{
ea077c1c
RL		 609 /* Some channels must be completely excluded from the
610 * list to protect old user-space tools from breaking
611 */
612 if (!large && chan->flags &
613 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
614 return 0;
615
9360ffd1
DM		 616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
617 chan->center_freq))
618 goto nla_put_failure;
5dab3b8a 619
9360ffd1
DM		 620 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
622 goto nla_put_failure;
8fe02e16
LR		 623 if (chan->flags & IEEE80211_CHAN_NO_IR) {
624 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
625 goto nla_put_failure;
626 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
627 goto nla_put_failure;
628 }
cdc89b97
JB		 629 if (chan->flags & IEEE80211_CHAN_RADAR) {
630 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
631 goto nla_put_failure;
632 if (large) {
633 u32 time;
634
635 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
636
637 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
638 chan->dfs_state))
639 goto nla_put_failure;
640 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
641 time))
642 goto nla_put_failure;
089027e5
JD		 643 if (nla_put_u32(msg,
644 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
645 chan->dfs_cac_ms))
646 goto nla_put_failure;
cdc89b97
JB		 647 }
648 }
5dab3b8a 649
fe1abafd
JB		 650 if (large) {
651 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
652 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
653 goto nla_put_failure;
654 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
655 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
656 goto nla_put_failure;
657 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
658 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
659 goto nla_put_failure;
660 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
661 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
662 goto nla_put_failure;
570dbde1
DS		 663 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
664 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
665 goto nla_put_failure;
06f207fc
AN		 666 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
667 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 668 goto nla_put_failure;
ea077c1c
RL		 669 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
670 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
671 goto nla_put_failure;
672 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
673 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
674 goto nla_put_failure;
fe1abafd
JB		 675 }
676
9360ffd1
DM		 677 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
678 DBM_TO_MBM(chan->max_power)))
679 goto nla_put_failure;
5dab3b8a
LR		 680
681 return 0;
682
683 nla_put_failure:
684 return -ENOBUFS;
685}
686
55682965
JB		 687/* netlink command implementations */
688
b9454e83
JB		 689struct key_parse {
690 struct key_params p;
691 int idx;
e31b8213 692 int type;
b9454e83 693 bool def, defmgmt;
dbd2fd65 694 bool def_uni, def_multi;
b9454e83
JB		 695};
696
697static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
698{
699 struct nlattr *tb[NL80211_KEY_MAX + 1];
700 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
701 nl80211_key_policy);
702 if (err)
703 return err;
704
705 k->def = !!tb[NL80211_KEY_DEFAULT];
706 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
707
dbd2fd65
JB		 708 if (k->def) {
709 k->def_uni = true;
710 k->def_multi = true;
711 }
712 if (k->defmgmt)
713 k->def_multi = true;
714
b9454e83
JB		 715 if (tb[NL80211_KEY_IDX])
716 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
717
718 if (tb[NL80211_KEY_DATA]) {
719 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
720 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
721 }
722
723 if (tb[NL80211_KEY_SEQ]) {
724 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
725 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
726 }
727
728 if (tb[NL80211_KEY_CIPHER])
729 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
730
e31b8213
JB		 731 if (tb[NL80211_KEY_TYPE]) {
732 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
733 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
734 return -EINVAL;
735 }
736
dbd2fd65
JB		 737 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
738 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 739
2da8f419
JB		 740 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
741 tb[NL80211_KEY_DEFAULT_TYPES],
742 nl80211_key_default_policy);
dbd2fd65
JB		 743 if (err)
744 return err;
745
746 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
747 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
748 }
749
b9454e83
JB		 750 return 0;
751}
752
753static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
754{
755 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
756 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
757 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
758 }
759
760 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
761 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
762 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
763 }
764
765 if (info->attrs[NL80211_ATTR_KEY_IDX])
766 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
767
768 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
769 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
770
771 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
772 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
773
dbd2fd65
JB		 774 if (k->def) {
775 k->def_uni = true;
776 k->def_multi = true;
777 }
778 if (k->defmgmt)
779 k->def_multi = true;
780
e31b8213
JB		 781 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
782 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
783 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
784 return -EINVAL;
785 }
786
dbd2fd65
JB		 787 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
788 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
789 int err = nla_parse_nested(
790 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
791 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
792 nl80211_key_default_policy);
793 if (err)
794 return err;
795
796 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
797 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
798 }
799
b9454e83
JB		 800 return 0;
801}
802
803static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
804{
805 int err;
806
807 memset(k, 0, sizeof(*k));
808 k->idx = -1;
e31b8213 809 k->type = -1;
b9454e83
JB		 810
811 if (info->attrs[NL80211_ATTR_KEY])
812 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
813 else
814 err = nl80211_parse_key_old(info, k);
815
816 if (err)
817 return err;
818
819 if (k->def && k->defmgmt)
820 return -EINVAL;
821
dbd2fd65
JB		 822 if (k->defmgmt) {
823 if (k->def_uni || !k->def_multi)
824 return -EINVAL;
825 }
826
b9454e83
JB		 827 if (k->idx != -1) {
828 if (k->defmgmt) {
829 if (k->idx < 4 || k->idx > 5)
830 return -EINVAL;
831 } else if (k->def) {
832 if (k->idx < 0 || k->idx > 3)
833 return -EINVAL;
834 } else {
835 if (k->idx < 0 || k->idx > 5)
836 return -EINVAL;
837 }
838 }
839
840 return 0;
841}
842
fffd0934
JB		 843static struct cfg80211_cached_keys *
844nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 845 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 846{
847 struct key_parse parse;
848 struct nlattr *key;
849 struct cfg80211_cached_keys *result;
850 int rem, err, def = 0;
851
852 result = kzalloc(sizeof(*result), GFP_KERNEL);
853 if (!result)
854 return ERR_PTR(-ENOMEM);
855
856 result->def = -1;
857 result->defmgmt = -1;
858
859 nla_for_each_nested(key, keys, rem) {
860 memset(&parse, 0, sizeof(parse));
861 parse.idx = -1;
862
863 err = nl80211_parse_key_new(key, &parse);
864 if (err)
865 goto error;
866 err = -EINVAL;
867 if (!parse.p.key)
868 goto error;
869 if (parse.idx < 0 || parse.idx > 4)
870 goto error;
871 if (parse.def) {
872 if (def)
873 goto error;
874 def = 1;
875 result->def = parse.idx;
dbd2fd65
JB		 876 if (!parse.def_uni || !parse.def_multi)
877 goto error;
fffd0934
JB		 878 } else if (parse.defmgmt)
879 goto error;
880 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 881 parse.idx, false, NULL);
fffd0934
JB		 882 if (err)
883 goto error;
884 result->params[parse.idx].cipher = parse.p.cipher;
885 result->params[parse.idx].key_len = parse.p.key_len;
886 result->params[parse.idx].key = result->data[parse.idx];
887 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 888
889 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
890 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
891 if (no_ht)
892 *no_ht = true;
893 }
fffd0934
JB		 894 }
895
896 return result;
897 error:
898 kfree(result);
899 return ERR_PTR(err);
900}
901
902static int nl80211_key_allowed(struct wireless_dev *wdev)
903{
904 ASSERT_WDEV_LOCK(wdev);
905
fffd0934
JB		 906 switch (wdev->iftype) {
907 case NL80211_IFTYPE_AP:
908 case NL80211_IFTYPE_AP_VLAN:
074ac8df 909 case NL80211_IFTYPE_P2P_GO:
ff973af7 910 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 911 break;
912 case NL80211_IFTYPE_ADHOC:
fffd0934 913 case NL80211_IFTYPE_STATION:
074ac8df 914 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 915 if (!wdev->current_bss)
fffd0934
JB		 916 return -ENOLINK;
917 break;
de4fcbad 918 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 919 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 920 case NL80211_IFTYPE_MONITOR:
921 case NL80211_IFTYPE_P2P_DEVICE:
922 case NL80211_IFTYPE_WDS:
923 case NUM_NL80211_IFTYPES:
fffd0934
JB		 924 return -EINVAL;
925 }
926
927 return 0;
928}
929
664834de
JM		 930static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
931 struct nlattr *tb)
932{
933 struct ieee80211_channel *chan;
934
935 if (tb == NULL)
936 return NULL;
937 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
938 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
939 return NULL;
940 return chan;
941}
942
7527a782
JB		 943static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
944{
945 struct nlattr *nl_modes = nla_nest_start(msg, attr);
946 int i;
947
948 if (!nl_modes)
949 goto nla_put_failure;
950
951 i = 0;
952 while (ifmodes) {
9360ffd1
DM		 953 if ((ifmodes & 1) && nla_put_flag(msg, i))
954 goto nla_put_failure;
7527a782
JB		 955 ifmodes >>= 1;
956 i++;
957 }
958
959 nla_nest_end(msg, nl_modes);
960 return 0;
961
962nla_put_failure:
963 return -ENOBUFS;
964}
965
966static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 967 struct sk_buff *msg,
968 bool large)
7527a782
JB		 969{
970 struct nlattr *nl_combis;
971 int i, j;
972
973 nl_combis = nla_nest_start(msg,
974 NL80211_ATTR_INTERFACE_COMBINATIONS);
975 if (!nl_combis)
976 goto nla_put_failure;
977
978 for (i = 0; i < wiphy->n_iface_combinations; i++) {
979 const struct ieee80211_iface_combination *c;
980 struct nlattr *nl_combi, *nl_limits;
981
982 c = &wiphy->iface_combinations[i];
983
984 nl_combi = nla_nest_start(msg, i + 1);
985 if (!nl_combi)
986 goto nla_put_failure;
987
988 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
989 if (!nl_limits)
990 goto nla_put_failure;
991
992 for (j = 0; j < c->n_limits; j++) {
993 struct nlattr *nl_limit;
994
995 nl_limit = nla_nest_start(msg, j + 1);
996 if (!nl_limit)
997 goto nla_put_failure;
9360ffd1
DM		 998 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
999 c->limits[j].max))
1000 goto nla_put_failure;
7527a782
JB		 1001 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1002 c->limits[j].types))
1003 goto nla_put_failure;
1004 nla_nest_end(msg, nl_limit);
1005 }
1006
1007 nla_nest_end(msg, nl_limits);
1008
9360ffd1
DM		 1009 if (c->beacon_int_infra_match &&
1010 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1011 goto nla_put_failure;
1012 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1013 c->num_different_channels) ||
1014 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1015 c->max_interfaces))
1016 goto nla_put_failure;
cdc89b97 1017 if (large &&
8c48b50a
FF		 1018 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1019 c->radar_detect_widths) ||
1020 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1021 c->radar_detect_regions)))
cdc89b97 1022 goto nla_put_failure;
7527a782
JB		 1023
1024 nla_nest_end(msg, nl_combi);
1025 }
1026
1027 nla_nest_end(msg, nl_combis);
1028
1029 return 0;
1030nla_put_failure:
1031 return -ENOBUFS;
1032}
1033
3713b4e3 1034#ifdef CONFIG_PM
b56cf720
JB		 1035static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1036 struct sk_buff *msg)
1037{
964dc9e2 1038 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1039 struct nlattr *nl_tcp;
1040
1041 if (!tcp)
1042 return 0;
1043
1044 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1045 if (!nl_tcp)
1046 return -ENOBUFS;
1047
1048 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1049 tcp->data_payload_max))
1050 return -ENOBUFS;
1051
1052 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1053 tcp->data_payload_max))
1054 return -ENOBUFS;
1055
1056 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1057 return -ENOBUFS;
1058
1059 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1060 sizeof(*tcp->tok), tcp->tok))
1061 return -ENOBUFS;
1062
1063 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1064 tcp->data_interval_max))
1065 return -ENOBUFS;
1066
1067 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1068 tcp->wake_payload_max))
1069 return -ENOBUFS;
1070
1071 nla_nest_end(msg, nl_tcp);
1072 return 0;
1073}
1074
3713b4e3 1075static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1076 struct cfg80211_registered_device *rdev,
b56cf720 1077 bool large)
55682965 1078{
3713b4e3 1079 struct nlattr *nl_wowlan;
55682965 1080
1b8ec87a 1081 if (!rdev->wiphy.wowlan)
3713b4e3 1082 return 0;
55682965 1083
3713b4e3
JB		 1084 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1085 if (!nl_wowlan)
1086 return -ENOBUFS;
9360ffd1 1087
1b8ec87a 1088 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1090 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1092 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1094 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1096 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1098 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1099 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1100 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1102 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1103 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1104 return -ENOBUFS;
9360ffd1 1105
1b8ec87a 1106 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1107 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1108 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1109 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1110 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1111 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1112 };
9360ffd1 1113
3713b4e3
JB		 1114 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1115 sizeof(pat), &pat))
1116 return -ENOBUFS;
1117 }
9360ffd1 1118
75453ccb
LC		 1119 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1120 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1121 rdev->wiphy.wowlan->max_nd_match_sets))
1122 return -ENOBUFS;
1123
1b8ec87a 1124 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1125 return -ENOBUFS;
1126
3713b4e3 1127 nla_nest_end(msg, nl_wowlan);
9360ffd1 1128
3713b4e3
JB		 1129 return 0;
1130}
1131#endif
9360ffd1 1132
be29b99a 1133static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1134 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1135{
1136 struct nl80211_coalesce_rule_support rule;
1137
1b8ec87a 1138 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1139 return 0;
1140
1b8ec87a
ZG		 1141 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1142 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1143 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1144 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1145 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1146 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1147
1148 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1149 return -ENOBUFS;
1150
1151 return 0;
1152}
1153
3713b4e3
JB		 1154static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1155 struct ieee80211_supported_band *sband)
1156{
1157 struct nlattr *nl_rates, *nl_rate;
1158 struct ieee80211_rate *rate;
1159 int i;
87bbbe22 1160
3713b4e3
JB		 1161 /* add HT info */
1162 if (sband->ht_cap.ht_supported &&
1163 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1164 sizeof(sband->ht_cap.mcs),
1165 &sband->ht_cap.mcs) ||
1166 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1167 sband->ht_cap.cap) ||
1168 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1169 sband->ht_cap.ampdu_factor) ||
1170 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1171 sband->ht_cap.ampdu_density)))
1172 return -ENOBUFS;
afe0cbf8 1173
3713b4e3
JB		 1174 /* add VHT info */
1175 if (sband->vht_cap.vht_supported &&
1176 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1177 sizeof(sband->vht_cap.vht_mcs),
1178 &sband->vht_cap.vht_mcs) ||
1179 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1180 sband->vht_cap.cap)))
1181 return -ENOBUFS;
f59ac048 1182
3713b4e3
JB		 1183 /* add bitrates */
1184 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1185 if (!nl_rates)
1186 return -ENOBUFS;
ee688b00 1187
3713b4e3
JB		 1188 for (i = 0; i < sband->n_bitrates; i++) {
1189 nl_rate = nla_nest_start(msg, i);
1190 if (!nl_rate)
1191 return -ENOBUFS;
ee688b00 1192
3713b4e3
JB		 1193 rate = &sband->bitrates[i];
1194 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1195 rate->bitrate))
1196 return -ENOBUFS;
1197 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1198 nla_put_flag(msg,
1199 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1200 return -ENOBUFS;
ee688b00 1201
3713b4e3
JB		 1202 nla_nest_end(msg, nl_rate);
1203 }
d51626df 1204
3713b4e3 1205 nla_nest_end(msg, nl_rates);
bf0c111e 1206
3713b4e3
JB		 1207 return 0;
1208}
ee688b00 1209
3713b4e3
JB		 1210static int
1211nl80211_send_mgmt_stypes(struct sk_buff *msg,
1212 const struct ieee80211_txrx_stypes *mgmt_stypes)
1213{
1214 u16 stypes;
1215 struct nlattr *nl_ftypes, *nl_ifs;
1216 enum nl80211_iftype ift;
1217 int i;
ee688b00 1218
3713b4e3
JB		 1219 if (!mgmt_stypes)
1220 return 0;
5dab3b8a 1221
3713b4e3
JB		 1222 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1223 if (!nl_ifs)
1224 return -ENOBUFS;
e2f367f2 1225
3713b4e3
JB		 1226 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1227 nl_ftypes = nla_nest_start(msg, ift);
1228 if (!nl_ftypes)
1229 return -ENOBUFS;
1230 i = 0;
1231 stypes = mgmt_stypes[ift].tx;
1232 while (stypes) {
1233 if ((stypes & 1) &&
1234 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1235 (i << 4) | IEEE80211_FTYPE_MGMT))
1236 return -ENOBUFS;
1237 stypes >>= 1;
1238 i++;
ee688b00 1239 }
3713b4e3
JB		 1240 nla_nest_end(msg, nl_ftypes);
1241 }
ee688b00 1242
3713b4e3 1243 nla_nest_end(msg, nl_ifs);
ee688b00 1244
3713b4e3
JB		 1245 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1246 if (!nl_ifs)
1247 return -ENOBUFS;
ee688b00 1248
3713b4e3
JB		 1249 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1250 nl_ftypes = nla_nest_start(msg, ift);
1251 if (!nl_ftypes)
1252 return -ENOBUFS;
1253 i = 0;
1254 stypes = mgmt_stypes[ift].rx;
1255 while (stypes) {
1256 if ((stypes & 1) &&
1257 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1258 (i << 4) | IEEE80211_FTYPE_MGMT))
1259 return -ENOBUFS;
1260 stypes >>= 1;
1261 i++;
1262 }
1263 nla_nest_end(msg, nl_ftypes);
1264 }
1265 nla_nest_end(msg, nl_ifs);
ee688b00 1266
3713b4e3
JB		 1267 return 0;
1268}
ee688b00 1269
86e8cf98
JB		 1270struct nl80211_dump_wiphy_state {
1271 s64 filter_wiphy;
1272 long start;
019ae3a9 1273 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1274 bool split;
1275};
1276
1b8ec87a 1277static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1278 enum nl80211_commands cmd,
3713b4e3 1279 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1280 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1281{
1282 void *hdr;
1283 struct nlattr *nl_bands, *nl_band;
1284 struct nlattr *nl_freqs, *nl_freq;
1285 struct nlattr *nl_cmds;
57fbcce3 1286 enum nl80211_band band;
3713b4e3
JB		 1287 struct ieee80211_channel *chan;
1288 int i;
1289 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1290 rdev->wiphy.mgmt_stypes;
fe1abafd 1291 u32 features;
ee688b00 1292
3bb20556 1293 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1294 if (!hdr)
1295 return -ENOBUFS;
ee688b00 1296
86e8cf98
JB		 1297 if (WARN_ON(!state))
1298 return -EINVAL;
ee688b00 1299
1b8ec87a 1300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1301 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1302 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1303 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1304 cfg80211_rdev_list_generation))
8fdc621d
JB		 1305 goto nla_put_failure;
1306
3bb20556
JB		 1307 if (cmd != NL80211_CMD_NEW_WIPHY)
1308 goto finish;
1309
86e8cf98 1310 switch (state->split_start) {
3713b4e3
JB		 1311 case 0:
1312 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1313 rdev->wiphy.retry_short) ||
3713b4e3 1314 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1315 rdev->wiphy.retry_long) ||
3713b4e3 1316 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1317 rdev->wiphy.frag_threshold) ||
3713b4e3 1318 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1319 rdev->wiphy.rts_threshold) ||
3713b4e3 1320 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1321 rdev->wiphy.coverage_class) ||
3713b4e3 1322 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1323 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1324 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1325 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1326 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1327 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1328 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1329 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1330 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1331 rdev->wiphy.max_match_sets) ||
1332 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1333 rdev->wiphy.max_sched_scan_plans) ||
1334 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1335 rdev->wiphy.max_sched_scan_plan_interval) ||
1336 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1337 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1338 goto nla_put_failure;
3713b4e3 1339
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1341 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1342 goto nla_put_failure;
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1344 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1345 goto nla_put_failure;
1b8ec87a 1346 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1347 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1348 goto nla_put_failure;
1b8ec87a 1349 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1350 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1351 goto nla_put_failure;
1b8ec87a 1352 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1353 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1354 goto nla_put_failure;
1b8ec87a 1355 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1356 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1357 goto nla_put_failure;
86e8cf98
JB		 1358 state->split_start++;
1359 if (state->split)
3713b4e3
JB		 1360 break;
1361 case 1:
1362 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1363 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1364 rdev->wiphy.cipher_suites))
3713b4e3 1365 goto nla_put_failure;
4745fc09 1366
3713b4e3 1367 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1368 rdev->wiphy.max_num_pmkids))
3713b4e3 1369 goto nla_put_failure;
b23aa676 1370
1b8ec87a 1371 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1372 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1373 goto nla_put_failure;
b23aa676 1374
3713b4e3 1375 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1376 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1377 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1378 rdev->wiphy.available_antennas_rx))
9360ffd1 1379 goto nla_put_failure;
b23aa676 1380
1b8ec87a 1381 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1382 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1383 rdev->wiphy.probe_resp_offload))
3713b4e3 1384 goto nla_put_failure;
8fdc621d 1385
1b8ec87a
ZG		 1386 if ((rdev->wiphy.available_antennas_tx ||
1387 rdev->wiphy.available_antennas_rx) &&
1388 rdev->ops->get_antenna) {
3713b4e3
JB		 1389 u32 tx_ant = 0, rx_ant = 0;
1390 int res;
7a087e74 1391
1b8ec87a 1392 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1393 if (!res) {
1394 if (nla_put_u32(msg,
1395 NL80211_ATTR_WIPHY_ANTENNA_TX,
1396 tx_ant) ||
1397 nla_put_u32(msg,
1398 NL80211_ATTR_WIPHY_ANTENNA_RX,
1399 rx_ant))
1400 goto nla_put_failure;
1401 }
1402 }
a293911d 1403
86e8cf98
JB		 1404 state->split_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 case 2:
1408 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1409 rdev->wiphy.interface_modes))
3713b4e3 1410 goto nla_put_failure;
86e8cf98
JB		 1411 state->split_start++;
1412 if (state->split)
3713b4e3
JB		 1413 break;
1414 case 3:
1415 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1416 if (!nl_bands)
1417 goto nla_put_failure;
f7ca38df 1418
86e8cf98 1419 for (band = state->band_start;
57fbcce3 1420 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1421 struct ieee80211_supported_band *sband;
2e161f78 1422
1b8ec87a 1423 sband = rdev->wiphy.bands[band];
2e161f78 1424
3713b4e3
JB		 1425 if (!sband)
1426 continue;
1427
1428 nl_band = nla_nest_start(msg, band);
1429 if (!nl_band)
2e161f78 1430 goto nla_put_failure;
3713b4e3 1431
86e8cf98 1432 switch (state->chan_start) {
3713b4e3
JB		 1433 case 0:
1434 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1435 goto nla_put_failure;
86e8cf98
JB		 1436 state->chan_start++;
1437 if (state->split)
3713b4e3
JB		 1438 break;
1439 default:
1440 /* add frequencies */
1441 nl_freqs = nla_nest_start(
1442 msg, NL80211_BAND_ATTR_FREQS);
1443 if (!nl_freqs)
1444 goto nla_put_failure;
1445
86e8cf98 1446 for (i = state->chan_start - 1;
3713b4e3
JB		 1447 i < sband->n_channels;
1448 i++) {
1449 nl_freq = nla_nest_start(msg, i);
1450 if (!nl_freq)
1451 goto nla_put_failure;
1452
1453 chan = &sband->channels[i];
1454
86e8cf98
JB		 1455 if (nl80211_msg_put_channel(
1456 msg, chan,
1457 state->split))
3713b4e3
JB		 1458 goto nla_put_failure;
1459
1460 nla_nest_end(msg, nl_freq);
86e8cf98 1461 if (state->split)
3713b4e3
JB		 1462 break;
1463 }
1464 if (i < sband->n_channels)
86e8cf98 1465 state->chan_start = i + 2;
3713b4e3 1466 else
86e8cf98 1467 state->chan_start = 0;
3713b4e3
JB		 1468 nla_nest_end(msg, nl_freqs);
1469 }
1470
1471 nla_nest_end(msg, nl_band);
1472
86e8cf98 1473 if (state->split) {
3713b4e3 1474 /* start again here */
86e8cf98 1475 if (state->chan_start)
3713b4e3
JB		 1476 band--;
1477 break;
2e161f78 1478 }
2e161f78 1479 }
3713b4e3 1480 nla_nest_end(msg, nl_bands);
2e161f78 1481
57fbcce3 1482 if (band < NUM_NL80211_BANDS)
86e8cf98 1483 state->band_start = band + 1;
3713b4e3 1484 else
86e8cf98 1485 state->band_start = 0;
74b70a4e 1486
3713b4e3 1487 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1488 if (state->band_start == 0 && state->chan_start == 0)
1489 state->split_start++;
1490 if (state->split)
3713b4e3
JB		 1491 break;
1492 case 4:
1493 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1494 if (!nl_cmds)
2e161f78
JB		 1495 goto nla_put_failure;
1496
3713b4e3
JB		 1497 i = 0;
1498#define CMD(op, n) \
1499 do { \
1b8ec87a 1500 if (rdev->ops->op) { \
3713b4e3
JB		 1501 i++; \
1502 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1503 goto nla_put_failure; \
1504 } \
1505 } while (0)
1506
1507 CMD(add_virtual_intf, NEW_INTERFACE);
1508 CMD(change_virtual_intf, SET_INTERFACE);
1509 CMD(add_key, NEW_KEY);
1510 CMD(start_ap, START_AP);
1511 CMD(add_station, NEW_STATION);
1512 CMD(add_mpath, NEW_MPATH);
1513 CMD(update_mesh_config, SET_MESH_CONFIG);
1514 CMD(change_bss, SET_BSS);
1515 CMD(auth, AUTHENTICATE);
1516 CMD(assoc, ASSOCIATE);
1517 CMD(deauth, DEAUTHENTICATE);
1518 CMD(disassoc, DISASSOCIATE);
1519 CMD(join_ibss, JOIN_IBSS);
1520 CMD(join_mesh, JOIN_MESH);
1521 CMD(set_pmksa, SET_PMKSA);
1522 CMD(del_pmksa, DEL_PMKSA);
1523 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1524 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1525 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1526 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1527 CMD(mgmt_tx, FRAME);
1528 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1529 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1530 i++;
1531 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1532 goto nla_put_failure;
2e161f78 1533 }
1b8ec87a
ZG		 1534 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1535 rdev->ops->join_mesh) {
3713b4e3
JB		 1536 i++;
1537 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1538 goto nla_put_failure;
1539 }
1540 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1541 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1542 CMD(tdls_mgmt, TDLS_MGMT);
1543 CMD(tdls_oper, TDLS_OPER);
1544 }
1b8ec87a 1545 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1546 CMD(sched_scan_start, START_SCHED_SCAN);
1547 CMD(probe_client, PROBE_CLIENT);
1548 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1549 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1550 i++;
1551 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1552 goto nla_put_failure;
1553 }
1554 CMD(start_p2p_device, START_P2P_DEVICE);
1555 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1556#ifdef CONFIG_NL80211_TESTMODE
1557 CMD(testmode_cmd, TESTMODE);
1558#endif
86e8cf98 1559 if (state->split) {
5de17984
AS		 1560 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1561 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1562 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1563 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1564 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1565 if (rdev->wiphy.features &
1566 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1567 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1568 }
02df00eb 1569 /* add into the if now */
3713b4e3 1570#undef CMD
ff1b6e69 1571
1b8ec87a 1572 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1573 i++;
1574 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1575 goto nla_put_failure;
ff1b6e69
JB		 1576 }
1577
1b8ec87a 1578 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1579 i++;
1580 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1581 goto nla_put_failure;
1582 }
1583
1584 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1585 state->split_start++;
1586 if (state->split)
3713b4e3
JB		 1587 break;
1588 case 5:
1b8ec87a
ZG		 1589 if (rdev->ops->remain_on_channel &&
1590 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1591 nla_put_u32(msg,
1592 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1593 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1594 goto nla_put_failure;
1595
1b8ec87a 1596 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1597 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1598 goto nla_put_failure;
1599
1600 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1601 goto nla_put_failure;
86e8cf98
JB		 1602 state->split_start++;
1603 if (state->split)
3713b4e3
JB		 1604 break;
1605 case 6:
1606#ifdef CONFIG_PM
1b8ec87a 1607 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1608 goto nla_put_failure;
86e8cf98
JB		 1609 state->split_start++;
1610 if (state->split)
3713b4e3
JB		 1611 break;
1612#else
86e8cf98 1613 state->split_start++;
dfb89c56 1614#endif
3713b4e3
JB		 1615 case 7:
1616 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1617 rdev->wiphy.software_iftypes))
3713b4e3 1618 goto nla_put_failure;
ff1b6e69 1619
1b8ec87a 1620 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1621 state->split))
3713b4e3 1622 goto nla_put_failure;
7527a782 1623
86e8cf98
JB		 1624 state->split_start++;
1625 if (state->split)
3713b4e3
JB		 1626 break;
1627 case 8:
1b8ec87a 1628 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1629 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1630 rdev->wiphy.ap_sme_capa))
3713b4e3 1631 goto nla_put_failure;
7527a782 1632
1b8ec87a 1633 features = rdev->wiphy.features;
fe1abafd
JB		 1634 /*
1635 * We can only add the per-channel limit information if the
1636 * dump is split, otherwise it makes it too big. Therefore
1637 * only advertise it in that case.
1638 */
86e8cf98 1639 if (state->split)
fe1abafd
JB		 1640 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1641 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1642 goto nla_put_failure;
562a7480 1643
1b8ec87a 1644 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1645 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1646 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1647 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1648 goto nla_put_failure;
1f074bd8 1649
1b8ec87a
ZG		 1650 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1651 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1652 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1653 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1654 goto nla_put_failure;
7e7c8926 1655
3713b4e3
JB		 1656 /*
1657 * Any information below this point is only available to
1658 * applications that can deal with it being split. This
1659 * helps ensure that newly added capabilities don't break
1660 * older tools by overrunning their buffers.
1661 *
1662 * We still increment split_start so that in the split
1663 * case we'll continue with more data in the next round,
1664 * but break unconditionally so unsplit data stops here.
1665 */
86e8cf98 1666 state->split_start++;
3713b4e3
JB		 1667 break;
1668 case 9:
1b8ec87a 1669 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1670 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1671 rdev->wiphy.extended_capabilities_len,
1672 rdev->wiphy.extended_capabilities) ||
fe1abafd 1673 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1674 rdev->wiphy.extended_capabilities_len,
1675 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1676 goto nla_put_failure;
a50df0c4 1677
1b8ec87a 1678 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1679 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1680 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1681 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1682 goto nla_put_failure;
1683
be29b99a
AK		 1684 state->split_start++;
1685 break;
1686 case 10:
1b8ec87a 1687 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1688 goto nla_put_failure;
1689
1b8ec87a 1690 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1691 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1692 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1693 goto nla_put_failure;
b43504cf 1694
1b8ec87a 1695 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1696 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1697 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1698 goto nla_put_failure;
1699
ad7e718c
JB		 1700 state->split_start++;
1701 break;
1702 case 11:
1b8ec87a 1703 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1704 const struct nl80211_vendor_cmd_info *info;
1705 struct nlattr *nested;
1706
1707 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1708 if (!nested)
1709 goto nla_put_failure;
1710
1b8ec87a
ZG		 1711 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1712 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1713 if (nla_put(msg, i + 1, sizeof(*info), info))
1714 goto nla_put_failure;
1715 }
1716 nla_nest_end(msg, nested);
1717 }
1718
1b8ec87a 1719 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1720 const struct nl80211_vendor_cmd_info *info;
1721 struct nlattr *nested;
ad7e718c 1722
567ffc35
JB		 1723 nested = nla_nest_start(msg,
1724 NL80211_ATTR_VENDOR_EVENTS);
1725 if (!nested)
ad7e718c 1726 goto nla_put_failure;
567ffc35 1727
1b8ec87a
ZG		 1728 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1729 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1730 if (nla_put(msg, i + 1, sizeof(*info), info))
1731 goto nla_put_failure;
1732 }
1733 nla_nest_end(msg, nested);
1734 }
9a774c78
AO		 1735 state->split_start++;
1736 break;
1737 case 12:
1738 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1739 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1740 rdev->wiphy.max_num_csa_counters))
1741 goto nla_put_failure;
01e0daa4 1742
1bdd716c
AN		 1743 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1744 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1745 goto nla_put_failure;
1746
d75bb06b
GKS		 1747 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1748 sizeof(rdev->wiphy.ext_features),
1749 rdev->wiphy.ext_features))
1750 goto nla_put_failure;
1751
38de03d2
AS		 1752 if (rdev->wiphy.bss_select_support) {
1753 struct nlattr *nested;
1754 u32 bss_select_support = rdev->wiphy.bss_select_support;
1755
1756 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1757 if (!nested)
1758 goto nla_put_failure;
1759
1760 i = 0;
1761 while (bss_select_support) {
1762 if ((bss_select_support & 1) &&
1763 nla_put_flag(msg, i))
1764 goto nla_put_failure;
1765 i++;
1766 bss_select_support >>= 1;
1767 }
1768 nla_nest_end(msg, nested);
1769 }
1770
019ae3a9
KV		 1771 state->split_start++;
1772 break;
1773 case 13:
1774 if (rdev->wiphy.num_iftype_ext_capab &&
1775 rdev->wiphy.iftype_ext_capab) {
1776 struct nlattr *nested_ext_capab, *nested;
1777
1778 nested = nla_nest_start(msg,
1779 NL80211_ATTR_IFTYPE_EXT_CAPA);
1780 if (!nested)
1781 goto nla_put_failure;
1782
1783 for (i = state->capa_start;
1784 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1785 const struct wiphy_iftype_ext_capab *capab;
1786
1787 capab = &rdev->wiphy.iftype_ext_capab[i];
1788
1789 nested_ext_capab = nla_nest_start(msg, i);
1790 if (!nested_ext_capab ||
1791 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1792 capab->iftype) ||
1793 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1794 capab->extended_capabilities_len,
1795 capab->extended_capabilities) ||
1796 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1797 capab->extended_capabilities_len,
1798 capab->extended_capabilities_mask))
1799 goto nla_put_failure;
1800
1801 nla_nest_end(msg, nested_ext_capab);
1802 if (state->split)
1803 break;
1804 }
1805 nla_nest_end(msg, nested);
1806 if (i < rdev->wiphy.num_iftype_ext_capab) {
1807 state->capa_start = i + 1;
1808 break;
1809 }
1810 }
1811
3713b4e3 1812 /* done */
86e8cf98 1813 state->split_start = 0;
3713b4e3
JB		 1814 break;
1815 }
3bb20556 1816 finish:
053c095a
JB		 1817 genlmsg_end(msg, hdr);
1818 return 0;
55682965
JB		 1819
1820 nla_put_failure:
bc3ed28c
TG		 1821 genlmsg_cancel(msg, hdr);
1822 return -EMSGSIZE;
55682965
JB		 1823}
1824
86e8cf98
JB		 1825static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1826 struct netlink_callback *cb,
1827 struct nl80211_dump_wiphy_state *state)
1828{
1829 struct nlattr **tb = nl80211_fam.attrbuf;
1830 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1831 tb, nl80211_fam.maxattr, nl80211_policy);
1832 /* ignore parse errors for backward compatibility */
1833 if (ret)
1834 return 0;
1835
1836 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1837 if (tb[NL80211_ATTR_WIPHY])
1838 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1839 if (tb[NL80211_ATTR_WDEV])
1840 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1841 if (tb[NL80211_ATTR_IFINDEX]) {
1842 struct net_device *netdev;
1843 struct cfg80211_registered_device *rdev;
1844 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1845
7f2b8562 1846 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1847 if (!netdev)
1848 return -ENODEV;
1849 if (netdev->ieee80211_ptr) {
f26cbf40 1850 rdev = wiphy_to_rdev(
86e8cf98
JB		 1851 netdev->ieee80211_ptr->wiphy);
1852 state->filter_wiphy = rdev->wiphy_idx;
1853 }
86e8cf98
JB		 1854 }
1855
1856 return 0;
1857}
1858
55682965
JB		 1859static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1860{
645e77de 1861 int idx = 0, ret;
86e8cf98 1862 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1863 struct cfg80211_registered_device *rdev;
3a5a423b 1864
5fe231e8 1865 rtnl_lock();
86e8cf98
JB		 1866 if (!state) {
1867 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1868 if (!state) {
1869 rtnl_unlock();
86e8cf98 1870 return -ENOMEM;
3713b4e3 1871 }
86e8cf98
JB		 1872 state->filter_wiphy = -1;
1873 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1874 if (ret) {
1875 kfree(state);
1876 rtnl_unlock();
1877 return ret;
3713b4e3 1878 }
86e8cf98 1879 cb->args[0] = (long)state;
3713b4e3
JB		 1880 }
1881
1b8ec87a
ZG		 1882 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1883 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1884 continue;
86e8cf98 1885 if (++idx <= state->start)
55682965 1886 continue;
86e8cf98 1887 if (state->filter_wiphy != -1 &&
1b8ec87a 1888 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1889 continue;
1890 /* attempt to fit multiple wiphy data chunks into the skb */
1891 do {
3bb20556
JB		 1892 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1893 skb,
3713b4e3
JB		 1894 NETLINK_CB(cb->skb).portid,
1895 cb->nlh->nlmsg_seq,
86e8cf98 1896 NLM_F_MULTI, state);
3713b4e3
JB		 1897 if (ret < 0) {
1898 /*
1899 * If sending the wiphy data didn't fit (ENOBUFS
1900 * or EMSGSIZE returned), this SKB is still
1901 * empty (so it's not too big because another
1902 * wiphy dataset is already in the skb) and
1903 * we've not tried to adjust the dump allocation
1904 * yet ... then adjust the alloc size to be
1905 * bigger, and return 1 but with the empty skb.
1906 * This results in an empty message being RX'ed
1907 * in userspace, but that is ignored.
1908 *
1909 * We can then retry with the larger buffer.
1910 */
1911 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1912 !skb->len && !state->split &&
3713b4e3
JB		 1913 cb->min_dump_alloc < 4096) {
1914 cb->min_dump_alloc = 4096;
f12cb289 1915 state->split_start = 0;
d98cae64 1916 rtnl_unlock();
3713b4e3
JB		 1917 return 1;
1918 }
1919 idx--;
1920 break;
645e77de 1921 }
86e8cf98 1922 } while (state->split_start > 0);
3713b4e3 1923 break;
55682965 1924 }
5fe231e8 1925 rtnl_unlock();
55682965 1926
86e8cf98 1927 state->start = idx;
55682965
JB		 1928
1929 return skb->len;
1930}
1931
86e8cf98
JB		 1932static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1933{
1934 kfree((void *)cb->args[0]);
1935 return 0;
1936}
1937
55682965
JB		 1938static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1939{
1940 struct sk_buff *msg;
1b8ec87a 1941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1942 struct nl80211_dump_wiphy_state state = {};
55682965 1943
645e77de 1944 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1945 if (!msg)
4c476991 1946 return -ENOMEM;
55682965 1947
3bb20556
JB		 1948 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1949 info->snd_portid, info->snd_seq, 0,
86e8cf98 1950 &state) < 0) {
4c476991
JB		 1951 nlmsg_free(msg);
1952 return -ENOBUFS;
1953 }
55682965 1954
134e6375 1955 return genlmsg_reply(msg, info);
55682965
JB		 1956}
1957
31888487
JM		 1958static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1959 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1960 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1961 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1962 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1963 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1964};
1965
1966static int parse_txq_params(struct nlattr *tb[],
1967 struct ieee80211_txq_params *txq_params)
1968{
a3304b0a 1969 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1970 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1971 !tb[NL80211_TXQ_ATTR_AIFS])
1972 return -EINVAL;
1973
a3304b0a 1974 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1975 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1976 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1977 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1978 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1979
a3304b0a
JB		 1980 if (txq_params->ac >= NL80211_NUM_ACS)
1981 return -EINVAL;
1982
31888487
JM		 1983 return 0;
1984}
1985
f444de05
JB		 1986static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1987{
1988 /*
cc1d2806
JB		 1989 * You can only set the channel explicitly for WDS interfaces,
1990 * all others have their channel managed via their respective
1991 * "establish a connection" command (connect, join, ...)
1992 *
1993 * For AP/GO and mesh mode, the channel can be set with the
1994 * channel userspace API, but is only stored and passed to the
1995 * low-level driver when the AP starts or the mesh is joined.
1996 * This is for backward compatibility, userspace can also give
1997 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1998 *
1999 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2000 * whatever else is going on, so they have their own special
2001 * operation to set the monitor channel if possible.
f444de05
JB		 2002 */
2003 return !wdev ||
2004 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2005 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2006 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2007 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2008}
2009
683b6d3b
JB		 2010static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2011 struct genl_info *info,
2012 struct cfg80211_chan_def *chandef)
2013{
dbeca2ea 2014 u32 control_freq;
683b6d3b
JB		 2015
2016 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2017 return -EINVAL;
2018
2019 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2020
2021 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2022 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2023 chandef->center_freq1 = control_freq;
2024 chandef->center_freq2 = 0;
683b6d3b
JB		 2025
2026 /* Primary channel not allowed */
2027 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2028 return -EINVAL;
2029
3d9d1d66
JB		 2030 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2031 enum nl80211_channel_type chantype;
2032
2033 chantype = nla_get_u32(
2034 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2035
2036 switch (chantype) {
2037 case NL80211_CHAN_NO_HT:
2038 case NL80211_CHAN_HT20:
2039 case NL80211_CHAN_HT40PLUS:
2040 case NL80211_CHAN_HT40MINUS:
2041 cfg80211_chandef_create(chandef, chandef->chan,
2042 chantype);
2043 break;
2044 default:
2045 return -EINVAL;
2046 }
2047 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2048 chandef->width =
2049 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2050 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2051 chandef->center_freq1 =
2052 nla_get_u32(
2053 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2054 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2055 chandef->center_freq2 =
2056 nla_get_u32(
2057 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2058 }
2059
9f5e8f6e 2060 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2061 return -EINVAL;
2062
9f5e8f6e
JB		 2063 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2064 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2065 return -EINVAL;
2066
2f301ab2
SW		 2067 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2068 chandef->width == NL80211_CHAN_WIDTH_10) &&
2069 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2070 return -EINVAL;
2071
683b6d3b
JB		 2072 return 0;
2073}
2074
f444de05 2075static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2076 struct net_device *dev,
f444de05
JB		 2077 struct genl_info *info)
2078{
683b6d3b 2079 struct cfg80211_chan_def chandef;
f444de05 2080 int result;
e8c9bd5b 2081 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2082 struct wireless_dev *wdev = NULL;
e8c9bd5b 2083
e16821bc
JM		 2084 if (dev)
2085 wdev = dev->ieee80211_ptr;
f444de05
JB		 2086 if (!nl80211_can_set_dev_channel(wdev))
2087 return -EOPNOTSUPP;
e16821bc
JM		 2088 if (wdev)
2089 iftype = wdev->iftype;
f444de05 2090
683b6d3b
JB		 2091 result = nl80211_parse_chandef(rdev, info, &chandef);
2092 if (result)
2093 return result;
f444de05 2094
e8c9bd5b 2095 switch (iftype) {
aa430da4
JB		 2096 case NL80211_IFTYPE_AP:
2097 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2098 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2099 iftype)) {
aa430da4
JB		 2100 result = -EINVAL;
2101 break;
2102 }
e16821bc
JM		 2103 if (wdev->beacon_interval) {
2104 if (!dev || !rdev->ops->set_ap_chanwidth ||
2105 !(rdev->wiphy.features &
2106 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2107 result = -EBUSY;
2108 break;
2109 }
2110
2111 /* Only allow dynamic channel width changes */
2112 if (chandef.chan != wdev->preset_chandef.chan) {
2113 result = -EBUSY;
2114 break;
2115 }
2116 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2117 if (result)
2118 break;
2119 }
683b6d3b 2120 wdev->preset_chandef = chandef;
aa430da4
JB		 2121 result = 0;
2122 break;
cc1d2806 2123 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2124 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2125 break;
e8c9bd5b 2126 case NL80211_IFTYPE_MONITOR:
683b6d3b 2127 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2128 break;
aa430da4 2129 default:
e8c9bd5b 2130 result = -EINVAL;
f444de05 2131 }
f444de05
JB		 2132
2133 return result;
2134}
2135
2136static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2137{
4c476991
JB		 2138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2139 struct net_device *netdev = info->user_ptr[1];
f444de05 2140
e16821bc 2141 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2142}
2143
e8347eba
BJ		 2144static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2145{
43b19952
JB		 2146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2147 struct net_device *dev = info->user_ptr[1];
2148 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2149 const u8 *bssid;
e8347eba
BJ		 2150
2151 if (!info->attrs[NL80211_ATTR_MAC])
2152 return -EINVAL;
2153
43b19952
JB		 2154 if (netif_running(dev))
2155 return -EBUSY;
e8347eba 2156
43b19952
JB		 2157 if (!rdev->ops->set_wds_peer)
2158 return -EOPNOTSUPP;
e8347eba 2159
43b19952
JB		 2160 if (wdev->iftype != NL80211_IFTYPE_WDS)
2161 return -EOPNOTSUPP;
e8347eba
BJ		 2162
2163 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2164 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2165}
2166
55682965
JB		 2167static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2168{
2169 struct cfg80211_registered_device *rdev;
f444de05
JB		 2170 struct net_device *netdev = NULL;
2171 struct wireless_dev *wdev;
a1e567c8 2172 int result = 0, rem_txq_params = 0;
31888487 2173 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2174 u32 changed;
2175 u8 retry_short = 0, retry_long = 0;
2176 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2177 u8 coverage_class = 0;
55682965 2178
5fe231e8
JB		 2179 ASSERT_RTNL();
2180
f444de05
JB		 2181 /*
2182 * Try to find the wiphy and netdev. Normally this
2183 * function shouldn't need the netdev, but this is
2184 * done for backward compatibility -- previously
2185 * setting the channel was done per wiphy, but now
2186 * it is per netdev. Previous userland like hostapd
2187 * also passed a netdev to set_wiphy, so that it is
2188 * possible to let that go to the right netdev!
2189 */
4bbf4d56 2190
f444de05
JB		 2191 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2192 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2193
7f2b8562 2194 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2195 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2196 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2197 else
f444de05 2198 netdev = NULL;
4bbf4d56
JB		 2199 }
2200
f444de05 2201 if (!netdev) {
878d9ec7
JB		 2202 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2203 info->attrs);
5fe231e8 2204 if (IS_ERR(rdev))
4c476991 2205 return PTR_ERR(rdev);
f444de05
JB		 2206 wdev = NULL;
2207 netdev = NULL;
2208 result = 0;
71fe96bf 2209 } else
f444de05 2210 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2211
2212 /*
2213 * end workaround code, by now the rdev is available
2214 * and locked, and wdev may or may not be NULL.
2215 */
4bbf4d56
JB		 2216
2217 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2218 result = cfg80211_dev_rename(
2219 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2220
4bbf4d56 2221 if (result)
7f2b8562 2222 return result;
31888487
JM		 2223
2224 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2225 struct ieee80211_txq_params txq_params;
2226 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2227
7f2b8562
YX		 2228 if (!rdev->ops->set_txq_params)
2229 return -EOPNOTSUPP;
31888487 2230
7f2b8562
YX		 2231 if (!netdev)
2232 return -EINVAL;
f70f01c2 2233
133a3ff2 2234 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2235 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2236 return -EINVAL;
133a3ff2 2237
7f2b8562
YX		 2238 if (!netif_running(netdev))
2239 return -ENETDOWN;
2b5f8b0b 2240
31888487
JM		 2241 nla_for_each_nested(nl_txq_params,
2242 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2243 rem_txq_params) {
ae811e21
JB		 2244 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2245 nla_data(nl_txq_params),
2246 nla_len(nl_txq_params),
2247 txq_params_policy);
2248 if (result)
2249 return result;
31888487
JM		 2250 result = parse_txq_params(tb, &txq_params);
2251 if (result)
7f2b8562 2252 return result;
31888487 2253
e35e4d28
HG		 2254 result = rdev_set_txq_params(rdev, netdev,
2255 &txq_params);
31888487 2256 if (result)
7f2b8562 2257 return result;
31888487
JM		 2258 }
2259 }
55682965 2260
72bdcf34 2261 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2262 result = __nl80211_set_channel(
2263 rdev,
2264 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2265 info);
72bdcf34 2266 if (result)
7f2b8562 2267 return result;
72bdcf34
JM		 2268 }
2269
98d2ff8b 2270 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2271 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2272 enum nl80211_tx_power_setting type;
2273 int idx, mbm = 0;
2274
c8442118
JB		 2275 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2276 txp_wdev = NULL;
2277
7f2b8562
YX		 2278 if (!rdev->ops->set_tx_power)
2279 return -EOPNOTSUPP;
98d2ff8b
JO		 2280
2281 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2282 type = nla_get_u32(info->attrs[idx]);
2283
2284 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2285 (type != NL80211_TX_POWER_AUTOMATIC))
2286 return -EINVAL;
98d2ff8b
JO		 2287
2288 if (type != NL80211_TX_POWER_AUTOMATIC) {
2289 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2290 mbm = nla_get_u32(info->attrs[idx]);
2291 }
2292
c8442118 2293 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2294 if (result)
7f2b8562 2295 return result;
98d2ff8b
JO		 2296 }
2297
afe0cbf8
BR		 2298 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2299 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2300 u32 tx_ant, rx_ant;
7a087e74 2301
7f531e03
BR		 2302 if ((!rdev->wiphy.available_antennas_tx &&
2303 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2304 !rdev->ops->set_antenna)
2305 return -EOPNOTSUPP;
afe0cbf8
BR		 2306
2307 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2308 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2309
a7ffac95 2310 /* reject antenna configurations which don't match the
7f531e03
BR		 2311 * available antenna masks, except for the "all" mask */
2312 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2313 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2314 return -EINVAL;
a7ffac95 2315
7f531e03
BR		 2316 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2317 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2318
e35e4d28 2319 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2320 if (result)
7f2b8562 2321 return result;
afe0cbf8
BR		 2322 }
2323
b9a5f8ca
JM		 2324 changed = 0;
2325
2326 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2327 retry_short = nla_get_u8(
2328 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2329 if (retry_short == 0)
2330 return -EINVAL;
2331
b9a5f8ca
JM		 2332 changed |= WIPHY_PARAM_RETRY_SHORT;
2333 }
2334
2335 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2336 retry_long = nla_get_u8(
2337 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2338 if (retry_long == 0)
2339 return -EINVAL;
2340
b9a5f8ca
JM		 2341 changed |= WIPHY_PARAM_RETRY_LONG;
2342 }
2343
2344 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2345 frag_threshold = nla_get_u32(
2346 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2347 if (frag_threshold < 256)
2348 return -EINVAL;
2349
b9a5f8ca
JM		 2350 if (frag_threshold != (u32) -1) {
2351 /*
2352 * Fragments (apart from the last one) are required to
2353 * have even length. Make the fragmentation code
2354 * simpler by stripping LSB should someone try to use
2355 * odd threshold value.
2356 */
2357 frag_threshold &= ~0x1;
2358 }
2359 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2360 }
2361
2362 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2363 rts_threshold = nla_get_u32(
2364 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2365 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2366 }
2367
81077e82 2368 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2369 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2370 return -EINVAL;
2371
81077e82
LT		 2372 coverage_class = nla_get_u8(
2373 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2374 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2375 }
2376
3057dbfd
LB		 2377 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2378 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2379 return -EOPNOTSUPP;
2380
2381 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2382 }
2383
b9a5f8ca
JM		 2384 if (changed) {
2385 u8 old_retry_short, old_retry_long;
2386 u32 old_frag_threshold, old_rts_threshold;
81077e82 2387 u8 old_coverage_class;
b9a5f8ca 2388
7f2b8562
YX		 2389 if (!rdev->ops->set_wiphy_params)
2390 return -EOPNOTSUPP;
b9a5f8ca
JM		 2391
2392 old_retry_short = rdev->wiphy.retry_short;
2393 old_retry_long = rdev->wiphy.retry_long;
2394 old_frag_threshold = rdev->wiphy.frag_threshold;
2395 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2396 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2397
2398 if (changed & WIPHY_PARAM_RETRY_SHORT)
2399 rdev->wiphy.retry_short = retry_short;
2400 if (changed & WIPHY_PARAM_RETRY_LONG)
2401 rdev->wiphy.retry_long = retry_long;
2402 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2403 rdev->wiphy.frag_threshold = frag_threshold;
2404 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2405 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2406 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2407 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2408
e35e4d28 2409 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2410 if (result) {
2411 rdev->wiphy.retry_short = old_retry_short;
2412 rdev->wiphy.retry_long = old_retry_long;
2413 rdev->wiphy.frag_threshold = old_frag_threshold;
2414 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2415 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2416 return result;
b9a5f8ca
JM		 2417 }
2418 }
7f2b8562 2419 return 0;
55682965
JB		 2420}
2421
71bbc994
JB		 2422static inline u64 wdev_id(struct wireless_dev *wdev)
2423{
2424 return (u64)wdev->identifier |
f26cbf40 2425 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2426}
55682965 2427
683b6d3b 2428static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2429 const struct cfg80211_chan_def *chandef)
683b6d3b 2430{
601555cd
JB		 2431 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2432 return -EINVAL;
3d9d1d66 2433
683b6d3b
JB		 2434 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2435 chandef->chan->center_freq))
2436 return -ENOBUFS;
3d9d1d66
JB		 2437 switch (chandef->width) {
2438 case NL80211_CHAN_WIDTH_20_NOHT:
2439 case NL80211_CHAN_WIDTH_20:
2440 case NL80211_CHAN_WIDTH_40:
2441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2442 cfg80211_get_chandef_type(chandef)))
2443 return -ENOBUFS;
2444 break;
2445 default:
2446 break;
2447 }
2448 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2449 return -ENOBUFS;
2450 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2451 return -ENOBUFS;
2452 if (chandef->center_freq2 &&
2453 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2454 return -ENOBUFS;
2455 return 0;
2456}
2457
15e47304 2458static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2459 struct cfg80211_registered_device *rdev,
8f894be2 2460 struct wireless_dev *wdev, bool removal)
55682965 2461{
72fb2abc 2462 struct net_device *dev = wdev->netdev;
8f894be2 2463 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2464 void *hdr;
2465
8f894be2
TB		 2466 if (removal)
2467 cmd = NL80211_CMD_DEL_INTERFACE;
2468
2469 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2470 if (!hdr)
2471 return -1;
2472
72fb2abc
JB		 2473 if (dev &&
2474 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2475 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2476 goto nla_put_failure;
2477
2478 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2479 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2480 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2481 NL80211_ATTR_PAD) ||
98104fde 2482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2483 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2484 rdev->devlist_generation ^
2485 (cfg80211_rdev_list_generation << 2)))
2486 goto nla_put_failure;
f5ea9120 2487
5b7ccaf3 2488 if (rdev->ops->get_channel) {
683b6d3b
JB		 2489 int ret;
2490 struct cfg80211_chan_def chandef;
2491
2492 ret = rdev_get_channel(rdev, wdev, &chandef);
2493 if (ret == 0) {
2494 if (nl80211_send_chandef(msg, &chandef))
2495 goto nla_put_failure;
2496 }
d91df0e3
PF		 2497 }
2498
d55d0d59
RM		 2499 if (rdev->ops->get_tx_power) {
2500 int dbm, ret;
2501
2502 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2503 if (ret == 0 &&
2504 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2505 DBM_TO_MBM(dbm)))
2506 goto nla_put_failure;
2507 }
2508
b84e7a05
AQ		 2509 if (wdev->ssid_len) {
2510 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2511 goto nla_put_failure;
2512 }
2513
053c095a
JB		 2514 genlmsg_end(msg, hdr);
2515 return 0;
55682965
JB		 2516
2517 nla_put_failure:
bc3ed28c
TG		 2518 genlmsg_cancel(msg, hdr);
2519 return -EMSGSIZE;
55682965
JB		 2520}
2521
2522static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2523{
2524 int wp_idx = 0;
2525 int if_idx = 0;
2526 int wp_start = cb->args[0];
2527 int if_start = cb->args[1];
f5ea9120 2528 struct cfg80211_registered_device *rdev;
55682965
JB		 2529 struct wireless_dev *wdev;
2530
5fe231e8 2531 rtnl_lock();
f5ea9120
JB		 2532 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2533 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2534 continue;
bba95fef
JB		 2535 if (wp_idx < wp_start) {
2536 wp_idx++;
55682965 2537 continue;
bba95fef 2538 }
55682965
JB		 2539 if_idx = 0;
2540
53873f13 2541 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2542 if (if_idx < if_start) {
2543 if_idx++;
55682965 2544 continue;
bba95fef 2545 }
15e47304 2546 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2547 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2548 rdev, wdev, false) < 0) {
bba95fef
JB		 2549 goto out;
2550 }
2551 if_idx++;
55682965 2552 }
bba95fef
JB		 2553
2554 wp_idx++;
55682965 2555 }
bba95fef 2556 out:
5fe231e8 2557 rtnl_unlock();
55682965
JB		 2558
2559 cb->args[0] = wp_idx;
2560 cb->args[1] = if_idx;
2561
2562 return skb->len;
2563}
2564
2565static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2566{
2567 struct sk_buff *msg;
1b8ec87a 2568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2569 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2570
fd2120ca 2571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2572 if (!msg)
4c476991 2573 return -ENOMEM;
55682965 2574
15e47304 2575 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2576 rdev, wdev, false) < 0) {
4c476991
JB		 2577 nlmsg_free(msg);
2578 return -ENOBUFS;
2579 }
55682965 2580
134e6375 2581 return genlmsg_reply(msg, info);
55682965
JB		 2582}
2583
66f7ac50
MW		 2584static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2585 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2586 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2587 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2588 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2589 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2590 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2591};
2592
2593static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2594{
2595 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2596 int flag;
2597
2598 *mntrflags = 0;
2599
2600 if (!nla)
2601 return -EINVAL;
2602
2603 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2604 nla, mntr_flags_policy))
2605 return -EINVAL;
2606
2607 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2608 if (flags[flag])
2609 *mntrflags |= (1<<flag);
2610
2611 return 0;
2612}
2613
9bc383de 2614static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2615 struct net_device *netdev, u8 use_4addr,
2616 enum nl80211_iftype iftype)
9bc383de 2617{
ad4bb6f8 2618 if (!use_4addr) {
f350a0a8 2619 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2620 return -EBUSY;
9bc383de 2621 return 0;
ad4bb6f8 2622 }
9bc383de
JB		 2623
2624 switch (iftype) {
2625 case NL80211_IFTYPE_AP_VLAN:
2626 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2627 return 0;
2628 break;
2629 case NL80211_IFTYPE_STATION:
2630 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2631 return 0;
2632 break;
2633 default:
2634 break;
2635 }
2636
2637 return -EOPNOTSUPP;
2638}
2639
55682965
JB		 2640static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2641{
4c476991 2642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2643 struct vif_params params;
e36d56b6 2644 int err;
04a773ad 2645 enum nl80211_iftype otype, ntype;
4c476991 2646 struct net_device *dev = info->user_ptr[1];
92ffe055 2647 u32 _flags, *flags = NULL;
ac7f9cfa 2648 bool change = false;
55682965 2649
2ec600d6
LCC		 2650 memset(&params, 0, sizeof(params));
2651
04a773ad 2652 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2653
723b038d 2654 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2655 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2656 if (otype != ntype)
ac7f9cfa 2657 change = true;
4c476991
JB		 2658 if (ntype > NL80211_IFTYPE_MAX)
2659 return -EINVAL;
723b038d
JB		 2660 }
2661
92ffe055 2662 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2663 struct wireless_dev *wdev = dev->ieee80211_ptr;
2664
4c476991
JB		 2665 if (ntype != NL80211_IFTYPE_MESH_POINT)
2666 return -EINVAL;
29cbe68c
JB		 2667 if (netif_running(dev))
2668 return -EBUSY;
2669
2670 wdev_lock(wdev);
2671 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2672 IEEE80211_MAX_MESH_ID_LEN);
2673 wdev->mesh_id_up_len =
2674 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2675 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2676 wdev->mesh_id_up_len);
2677 wdev_unlock(wdev);
2ec600d6
LCC		 2678 }
2679
8b787643
FF		 2680 if (info->attrs[NL80211_ATTR_4ADDR]) {
2681 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2682 change = true;
ad4bb6f8 2683 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2684 if (err)
4c476991 2685 return err;
8b787643
FF		 2686 } else {
2687 params.use_4addr = -1;
2688 }
2689
92ffe055 2690 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2691 if (ntype != NL80211_IFTYPE_MONITOR)
2692 return -EINVAL;
92ffe055
JB		 2693 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2694 &_flags);
ac7f9cfa 2695 if (err)
4c476991 2696 return err;
ac7f9cfa
JB		 2697
2698 flags = &_flags;
2699 change = true;
92ffe055 2700 }
3b85875a 2701
c6e6a0c8
AE		 2702 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2703 const u8 *mumimo_groups;
2704 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2705
2706 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2707 return -EOPNOTSUPP;
2708
2709 mumimo_groups =
2710 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2711
2712 /* bits 0 and 63 are reserved and must be zero */
2713 if ((mumimo_groups[0] & BIT(7)) ||
2714 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2715 return -EINVAL;
2716
2717 memcpy(params.vht_mumimo_groups, mumimo_groups,
2718 VHT_MUMIMO_GROUPS_DATA_LEN);
2719 change = true;
2720 }
2721
2722 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2723 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2724
2725 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2726 return -EOPNOTSUPP;
2727
2728 nla_memcpy(params.macaddr,
2729 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2730 ETH_ALEN);
2731 change = true;
2732 }
2733
18003297 2734 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2735 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2736 return -EOPNOTSUPP;
2737
ac7f9cfa 2738 if (change)
3d54d255 2739 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2740 else
2741 err = 0;
60719ffd 2742
9bc383de
JB		 2743 if (!err && params.use_4addr != -1)
2744 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2745
55682965
JB		 2746 return err;
2747}
2748
2749static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2750{
4c476991 2751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2752 struct vif_params params;
84efbb84 2753 struct wireless_dev *wdev;
896ff063 2754 struct sk_buff *msg;
55682965
JB		 2755 int err;
2756 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2757 u32 flags;
55682965 2758
78f22b6a
JB		 2759 /* to avoid failing a new interface creation due to pending removal */
2760 cfg80211_destroy_ifaces(rdev);
2761
2ec600d6
LCC		 2762 memset(&params, 0, sizeof(params));
2763
55682965
JB		 2764 if (!info->attrs[NL80211_ATTR_IFNAME])
2765 return -EINVAL;
2766
2767 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2768 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2769 if (type > NL80211_IFTYPE_MAX)
2770 return -EINVAL;
2771 }
2772
79c97e97 2773 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2774 !(rdev->wiphy.interface_modes & (1 << type)))
2775 return -EOPNOTSUPP;
55682965 2776
e8f479b1
BG		 2777 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2778 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2779 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2780 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2781 ETH_ALEN);
2782 if (!is_valid_ether_addr(params.macaddr))
2783 return -EADDRNOTAVAIL;
2784 }
2785
9bc383de 2786 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2787 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2788 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2789 if (err)
4c476991 2790 return err;
9bc383de 2791 }
8b787643 2792
66f7ac50
MW		 2793 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2794 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2795 &flags);
e057d3c3 2796
18003297 2797 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2798 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2799 return -EOPNOTSUPP;
2800
a18c7192
JB		 2801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2802 if (!msg)
2803 return -ENOMEM;
2804
e35e4d28
HG		 2805 wdev = rdev_add_virtual_intf(rdev,
2806 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2807 NET_NAME_USER, type, err ? NULL : &flags,
2808 &params);
d687cbb7
RM		 2809 if (WARN_ON(!wdev)) {
2810 nlmsg_free(msg);
2811 return -EPROTO;
2812 } else if (IS_ERR(wdev)) {
1c90f9d4 2813 nlmsg_free(msg);
84efbb84 2814 return PTR_ERR(wdev);
1c90f9d4 2815 }
2ec600d6 2816
18e5ca65 2817 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2818 wdev->owner_nlportid = info->snd_portid;
2819
98104fde
JB		 2820 switch (type) {
2821 case NL80211_IFTYPE_MESH_POINT:
2822 if (!info->attrs[NL80211_ATTR_MESH_ID])
2823 break;
29cbe68c
JB		 2824 wdev_lock(wdev);
2825 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2826 IEEE80211_MAX_MESH_ID_LEN);
2827 wdev->mesh_id_up_len =
2828 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2829 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2830 wdev->mesh_id_up_len);
2831 wdev_unlock(wdev);
98104fde
JB		 2832 break;
2833 case NL80211_IFTYPE_P2P_DEVICE:
2834 /*
2835 * P2P Device doesn't have a netdev, so doesn't go
2836 * through the netdev notifier and must be added here
2837 */
2838 mutex_init(&wdev->mtx);
2839 INIT_LIST_HEAD(&wdev->event_list);
2840 spin_lock_init(&wdev->event_lock);
2841 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2842 spin_lock_init(&wdev->mgmt_registrations_lock);
2843
98104fde 2844 wdev->identifier = ++rdev->wdev_id;
53873f13 2845 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2846 rdev->devlist_generation++;
98104fde
JB		 2847 break;
2848 default:
2849 break;
29cbe68c
JB		 2850 }
2851
15e47304 2852 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2853 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2854 nlmsg_free(msg);
2855 return -ENOBUFS;
2856 }
2857
896ff063
DK		 2858 /*
2859 * For wdevs which have no associated netdev object (e.g. of type
2860 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2861 * For all other types, the event will be generated from the
2862 * netdev notifier
2863 */
2864 if (!wdev->netdev)
2865 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2866
1c90f9d4 2867 return genlmsg_reply(msg, info);
55682965
JB		 2868}
2869
2870static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2871{
4c476991 2872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2873 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2874
4c476991
JB		 2875 if (!rdev->ops->del_virtual_intf)
2876 return -EOPNOTSUPP;
55682965 2877
84efbb84
JB		 2878 /*
2879 * If we remove a wireless device without a netdev then clear
2880 * user_ptr[1] so that nl80211_post_doit won't dereference it
2881 * to check if it needs to do dev_put(). Otherwise it crashes
2882 * since the wdev has been freed, unlike with a netdev where
2883 * we need the dev_put() for the netdev to really be freed.
2884 */
2885 if (!wdev->netdev)
2886 info->user_ptr[1] = NULL;
2887
7f8ed01e 2888 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2889}
2890
1d9d9213
SW		 2891static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2892{
2893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2894 struct net_device *dev = info->user_ptr[1];
2895 u16 noack_map;
2896
2897 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2898 return -EINVAL;
2899
2900 if (!rdev->ops->set_noack_map)
2901 return -EOPNOTSUPP;
2902
2903 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2904
e35e4d28 2905 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2906}
2907
41ade00f
JB		 2908struct get_key_cookie {
2909 struct sk_buff *msg;
2910 int error;
b9454e83 2911 int idx;
41ade00f
JB		 2912};
2913
2914static void get_key_callback(void *c, struct key_params *params)
2915{
b9454e83 2916 struct nlattr *key;
41ade00f
JB		 2917 struct get_key_cookie *cookie = c;
2918
9360ffd1
DM		 2919 if ((params->key &&
2920 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2921 params->key_len, params->key)) ||
2922 (params->seq &&
2923 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2924 params->seq_len, params->seq)) ||
2925 (params->cipher &&
2926 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2927 params->cipher)))
2928 goto nla_put_failure;
41ade00f 2929
b9454e83
JB		 2930 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2931 if (!key)
2932 goto nla_put_failure;
2933
9360ffd1
DM		 2934 if ((params->key &&
2935 nla_put(cookie->msg, NL80211_KEY_DATA,
2936 params->key_len, params->key)) ||
2937 (params->seq &&
2938 nla_put(cookie->msg, NL80211_KEY_SEQ,
2939 params->seq_len, params->seq)) ||
2940 (params->cipher &&
2941 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2942 params->cipher)))
2943 goto nla_put_failure;
b9454e83 2944
9360ffd1
DM		 2945 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2946 goto nla_put_failure;
b9454e83
JB		 2947
2948 nla_nest_end(cookie->msg, key);
2949
41ade00f
JB		 2950 return;
2951 nla_put_failure:
2952 cookie->error = 1;
2953}
2954
2955static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2956{
4c476991 2957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2958 int err;
4c476991 2959 struct net_device *dev = info->user_ptr[1];
41ade00f 2960 u8 key_idx = 0;
e31b8213
JB		 2961 const u8 *mac_addr = NULL;
2962 bool pairwise;
41ade00f
JB		 2963 struct get_key_cookie cookie = {
2964 .error = 0,
2965 };
2966 void *hdr;
2967 struct sk_buff *msg;
2968
2969 if (info->attrs[NL80211_ATTR_KEY_IDX])
2970 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2971
3cfcf6ac 2972 if (key_idx > 5)
41ade00f
JB		 2973 return -EINVAL;
2974
2975 if (info->attrs[NL80211_ATTR_MAC])
2976 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2977
e31b8213
JB		 2978 pairwise = !!mac_addr;
2979 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2980 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 2981
e31b8213
JB		 2982 if (kt >= NUM_NL80211_KEYTYPES)
2983 return -EINVAL;
2984 if (kt != NL80211_KEYTYPE_GROUP &&
2985 kt != NL80211_KEYTYPE_PAIRWISE)
2986 return -EINVAL;
2987 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2988 }
2989
4c476991
JB		 2990 if (!rdev->ops->get_key)
2991 return -EOPNOTSUPP;
41ade00f 2992
0fa7b391
JB		 2993 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2994 return -ENOENT;
2995
fd2120ca 2996 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2997 if (!msg)
2998 return -ENOMEM;
41ade00f 2999
15e47304 3000 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3001 NL80211_CMD_NEW_KEY);
cb35fba3 3002 if (!hdr)
9fe271af 3003 goto nla_put_failure;
41ade00f
JB		 3004
3005 cookie.msg = msg;
b9454e83 3006 cookie.idx = key_idx;
41ade00f 3007
9360ffd1
DM		 3008 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3009 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3010 goto nla_put_failure;
3011 if (mac_addr &&
3012 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3013 goto nla_put_failure;
41ade00f 3014
e35e4d28
HG		 3015 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3016 get_key_callback);
41ade00f
JB		 3017
3018 if (err)
6c95e2a2 3019 goto free_msg;
41ade00f
JB		 3020
3021 if (cookie.error)
3022 goto nla_put_failure;
3023
3024 genlmsg_end(msg, hdr);
4c476991 3025 return genlmsg_reply(msg, info);
41ade00f
JB		 3026
3027 nla_put_failure:
3028 err = -ENOBUFS;
6c95e2a2 3029 free_msg:
41ade00f 3030 nlmsg_free(msg);
41ade00f
JB		 3031 return err;
3032}
3033
3034static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3035{
4c476991 3036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3037 struct key_parse key;
41ade00f 3038 int err;
4c476991 3039 struct net_device *dev = info->user_ptr[1];
41ade00f 3040
b9454e83
JB		 3041 err = nl80211_parse_key(info, &key);
3042 if (err)
3043 return err;
41ade00f 3044
b9454e83 3045 if (key.idx < 0)
41ade00f
JB		 3046 return -EINVAL;
3047
b9454e83
JB		 3048 /* only support setting default key */
3049 if (!key.def && !key.defmgmt)
41ade00f
JB		 3050 return -EINVAL;
3051
dbd2fd65 3052 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3053
dbd2fd65
JB		 3054 if (key.def) {
3055 if (!rdev->ops->set_default_key) {
3056 err = -EOPNOTSUPP;
3057 goto out;
3058 }
41ade00f 3059
dbd2fd65
JB		 3060 err = nl80211_key_allowed(dev->ieee80211_ptr);
3061 if (err)
3062 goto out;
3063
e35e4d28 3064 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3065 key.def_uni, key.def_multi);
3066
3067 if (err)
3068 goto out;
fffd0934 3069
3d23e349 3070#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3071 dev->ieee80211_ptr->wext.default_key = key.idx;
3072#endif
3073 } else {
3074 if (key.def_uni || !key.def_multi) {
3075 err = -EINVAL;
3076 goto out;
3077 }
3078
3079 if (!rdev->ops->set_default_mgmt_key) {
3080 err = -EOPNOTSUPP;
3081 goto out;
3082 }
3083
3084 err = nl80211_key_allowed(dev->ieee80211_ptr);
3085 if (err)
3086 goto out;
3087
e35e4d28 3088 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3089 if (err)
3090 goto out;
3091
3092#ifdef CONFIG_CFG80211_WEXT
3093 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3094#endif
dbd2fd65
JB		 3095 }
3096
3097 out:
fffd0934 3098 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3099
41ade00f
JB		 3100 return err;
3101}
3102
3103static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3104{
4c476991 3105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3106 int err;
4c476991 3107 struct net_device *dev = info->user_ptr[1];
b9454e83 3108 struct key_parse key;
e31b8213 3109 const u8 *mac_addr = NULL;
41ade00f 3110
b9454e83
JB		 3111 err = nl80211_parse_key(info, &key);
3112 if (err)
3113 return err;
41ade00f 3114
b9454e83 3115 if (!key.p.key)
41ade00f
JB		 3116 return -EINVAL;
3117
41ade00f
JB		 3118 if (info->attrs[NL80211_ATTR_MAC])
3119 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3120
e31b8213
JB		 3121 if (key.type == -1) {
3122 if (mac_addr)
3123 key.type = NL80211_KEYTYPE_PAIRWISE;
3124 else
3125 key.type = NL80211_KEYTYPE_GROUP;
3126 }
3127
3128 /* for now */
3129 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3130 key.type != NL80211_KEYTYPE_GROUP)
3131 return -EINVAL;
3132
4c476991
JB		 3133 if (!rdev->ops->add_key)
3134 return -EOPNOTSUPP;
25e47c18 3135
e31b8213
JB		 3136 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3137 key.type == NL80211_KEYTYPE_PAIRWISE,
3138 mac_addr))
4c476991 3139 return -EINVAL;
41ade00f 3140
fffd0934
JB		 3141 wdev_lock(dev->ieee80211_ptr);
3142 err = nl80211_key_allowed(dev->ieee80211_ptr);
3143 if (!err)
e35e4d28
HG		 3144 err = rdev_add_key(rdev, dev, key.idx,
3145 key.type == NL80211_KEYTYPE_PAIRWISE,
3146 mac_addr, &key.p);
fffd0934 3147 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3148
41ade00f
JB		 3149 return err;
3150}
3151
3152static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3153{
4c476991 3154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3155 int err;
4c476991 3156 struct net_device *dev = info->user_ptr[1];
41ade00f 3157 u8 *mac_addr = NULL;
b9454e83 3158 struct key_parse key;
41ade00f 3159
b9454e83
JB		 3160 err = nl80211_parse_key(info, &key);
3161 if (err)
3162 return err;
41ade00f
JB		 3163
3164 if (info->attrs[NL80211_ATTR_MAC])
3165 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3166
e31b8213
JB		 3167 if (key.type == -1) {
3168 if (mac_addr)
3169 key.type = NL80211_KEYTYPE_PAIRWISE;
3170 else
3171 key.type = NL80211_KEYTYPE_GROUP;
3172 }
3173
3174 /* for now */
3175 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3176 key.type != NL80211_KEYTYPE_GROUP)
3177 return -EINVAL;
3178
4c476991
JB		 3179 if (!rdev->ops->del_key)
3180 return -EOPNOTSUPP;
41ade00f 3181
fffd0934
JB		 3182 wdev_lock(dev->ieee80211_ptr);
3183 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3184
0fa7b391 3185 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3186 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3187 err = -ENOENT;
3188
fffd0934 3189 if (!err)
e35e4d28
HG		 3190 err = rdev_del_key(rdev, dev, key.idx,
3191 key.type == NL80211_KEYTYPE_PAIRWISE,
3192 mac_addr);
41ade00f 3193
3d23e349 3194#ifdef CONFIG_CFG80211_WEXT
08645126 3195 if (!err) {
b9454e83 3196 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3197 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3198 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3199 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3200 }
3201#endif
fffd0934 3202 wdev_unlock(dev->ieee80211_ptr);
08645126 3203
41ade00f
JB		 3204 return err;
3205}
3206
77765eaf
VT		 3207/* This function returns an error or the number of nested attributes */
3208static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3209{
3210 struct nlattr *attr;
3211 int n_entries = 0, tmp;
3212
3213 nla_for_each_nested(attr, nl_attr, tmp) {
3214 if (nla_len(attr) != ETH_ALEN)
3215 return -EINVAL;
3216
3217 n_entries++;
3218 }
3219
3220 return n_entries;
3221}
3222
3223/*
3224 * This function parses ACL information and allocates memory for ACL data.
3225 * On successful return, the calling function is responsible to free the
3226 * ACL buffer returned by this function.
3227 */
3228static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3229 struct genl_info *info)
3230{
3231 enum nl80211_acl_policy acl_policy;
3232 struct nlattr *attr;
3233 struct cfg80211_acl_data *acl;
3234 int i = 0, n_entries, tmp;
3235
3236 if (!wiphy->max_acl_mac_addrs)
3237 return ERR_PTR(-EOPNOTSUPP);
3238
3239 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3240 return ERR_PTR(-EINVAL);
3241
3242 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3243 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3244 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3245 return ERR_PTR(-EINVAL);
3246
3247 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3248 return ERR_PTR(-EINVAL);
3249
3250 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3251 if (n_entries < 0)
3252 return ERR_PTR(n_entries);
3253
3254 if (n_entries > wiphy->max_acl_mac_addrs)
3255 return ERR_PTR(-ENOTSUPP);
3256
3257 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3258 GFP_KERNEL);
3259 if (!acl)
3260 return ERR_PTR(-ENOMEM);
3261
3262 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3263 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3264 i++;
3265 }
3266
3267 acl->n_acl_entries = n_entries;
3268 acl->acl_policy = acl_policy;
3269
3270 return acl;
3271}
3272
3273static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3274{
3275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3276 struct net_device *dev = info->user_ptr[1];
3277 struct cfg80211_acl_data *acl;
3278 int err;
3279
3280 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3281 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3282 return -EOPNOTSUPP;
3283
3284 if (!dev->ieee80211_ptr->beacon_interval)
3285 return -EINVAL;
3286
3287 acl = parse_acl_data(&rdev->wiphy, info);
3288 if (IS_ERR(acl))
3289 return PTR_ERR(acl);
3290
3291 err = rdev_set_mac_acl(rdev, dev, acl);
3292
3293 kfree(acl);
3294
3295 return err;
3296}
3297
a1193be8 3298static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3299 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3300{
8860020e 3301 bool haveinfo = false;
ed1b6cc7 3302
a1193be8
SW		 3303 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3304 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3305 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3306 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3307 return -EINVAL;
3308
8860020e 3309 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3310
a1193be8
SW		 3311 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3312 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3313 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3314 if (!bcn->head_len)
3315 return -EINVAL;
3316 haveinfo = true;
ed1b6cc7
JB		 3317 }
3318
a1193be8
SW		 3319 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3320 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3321 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3322 haveinfo = true;
ed1b6cc7
JB		 3323 }
3324
4c476991
JB		 3325 if (!haveinfo)
3326 return -EINVAL;
3b85875a 3327
a1193be8
SW		 3328 if (attrs[NL80211_ATTR_IE]) {
3329 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3330 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3331 }
3332
a1193be8 3333 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3334 bcn->proberesp_ies =
a1193be8 3335 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3336 bcn->proberesp_ies_len =
a1193be8 3337 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3338 }
3339
a1193be8 3340 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3341 bcn->assocresp_ies =
a1193be8 3342 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3343 bcn->assocresp_ies_len =
a1193be8 3344 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3345 }
3346
a1193be8
SW		 3347 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3348 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3349 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3350 }
3351
8860020e
JB		 3352 return 0;
3353}
3354
46c1dd0c
FF		 3355static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3356 struct cfg80211_ap_settings *params)
3357{
3358 struct wireless_dev *wdev;
3359 bool ret = false;
3360
53873f13 3361 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3362 if (wdev->iftype != NL80211_IFTYPE_AP &&
3363 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3364 continue;
3365
683b6d3b 3366 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3367 continue;
3368
683b6d3b 3369 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3370 ret = true;
3371 break;
3372 }
3373
46c1dd0c
FF		 3374 return ret;
3375}
3376
e39e5b5e
JM		 3377static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3378 enum nl80211_auth_type auth_type,
3379 enum nl80211_commands cmd)
3380{
3381 if (auth_type > NL80211_AUTHTYPE_MAX)
3382 return false;
3383
3384 switch (cmd) {
3385 case NL80211_CMD_AUTHENTICATE:
3386 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3387 auth_type == NL80211_AUTHTYPE_SAE)
3388 return false;
3389 return true;
3390 case NL80211_CMD_CONNECT:
3391 case NL80211_CMD_START_AP:
3392 /* SAE not supported yet */
3393 if (auth_type == NL80211_AUTHTYPE_SAE)
3394 return false;
3395 return true;
3396 default:
3397 return false;
3398 }
3399}
3400
8860020e
JB		 3401static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3402{
3403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3404 struct net_device *dev = info->user_ptr[1];
3405 struct wireless_dev *wdev = dev->ieee80211_ptr;
3406 struct cfg80211_ap_settings params;
3407 int err;
3408
3409 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3410 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3411 return -EOPNOTSUPP;
3412
3413 if (!rdev->ops->start_ap)
3414 return -EOPNOTSUPP;
3415
3416 if (wdev->beacon_interval)
3417 return -EALREADY;
3418
3419 memset(&params, 0, sizeof(params));
3420
3421 /* these are required for START_AP */
3422 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3423 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3424 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3425 return -EINVAL;
3426
a1193be8 3427 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3428 if (err)
3429 return err;
3430
3431 params.beacon_interval =
3432 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3433 params.dtim_period =
3434 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3435
3436 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3437 if (err)
3438 return err;
3439
3440 /*
3441 * In theory, some of these attributes should be required here
3442 * but since they were not used when the command was originally
3443 * added, keep them optional for old user space programs to let
3444 * them continue to work with drivers that do not need the
3445 * additional information -- drivers must check!
3446 */
3447 if (info->attrs[NL80211_ATTR_SSID]) {
3448 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3449 params.ssid_len =
3450 nla_len(info->attrs[NL80211_ATTR_SSID]);
3451 if (params.ssid_len == 0 ||
3452 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3453 return -EINVAL;
3454 }
3455
3456 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3457 params.hidden_ssid = nla_get_u32(
3458 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3459 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3460 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3461 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3462 return -EINVAL;
3463 }
3464
3465 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3466
3467 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3468 params.auth_type = nla_get_u32(
3469 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3470 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3471 NL80211_CMD_START_AP))
8860020e
JB		 3472 return -EINVAL;
3473 } else
3474 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3475
3476 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3477 NL80211_MAX_NR_CIPHER_SUITES);
3478 if (err)
3479 return err;
3480
1b658f11
VT		 3481 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3482 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3483 return -EOPNOTSUPP;
3484 params.inactivity_timeout = nla_get_u16(
3485 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3486 }
3487
53cabad7
JB		 3488 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3489 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3490 return -EINVAL;
3491 params.p2p_ctwindow =
3492 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3493 if (params.p2p_ctwindow > 127)
3494 return -EINVAL;
3495 if (params.p2p_ctwindow != 0 &&
3496 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3497 return -EINVAL;
3498 }
3499
3500 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3501 u8 tmp;
3502
3503 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3504 return -EINVAL;
3505 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3506 if (tmp > 1)
3507 return -EINVAL;
3508 params.p2p_opp_ps = tmp;
3509 if (params.p2p_opp_ps != 0 &&
3510 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3511 return -EINVAL;
3512 }
3513
aa430da4 3514 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3515 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3516 if (err)
3517 return err;
3518 } else if (wdev->preset_chandef.chan) {
3519 params.chandef = wdev->preset_chandef;
46c1dd0c 3520 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3521 return -EINVAL;
3522
923b352f
AN		 3523 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3524 wdev->iftype))
aa430da4
JB		 3525 return -EINVAL;
3526
18998c38
EP		 3527 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3528 params.smps_mode =
3529 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3530 switch (params.smps_mode) {
3531 case NL80211_SMPS_OFF:
3532 break;
3533 case NL80211_SMPS_STATIC:
3534 if (!(rdev->wiphy.features &
3535 NL80211_FEATURE_STATIC_SMPS))
3536 return -EINVAL;
3537 break;
3538 case NL80211_SMPS_DYNAMIC:
3539 if (!(rdev->wiphy.features &
3540 NL80211_FEATURE_DYNAMIC_SMPS))
3541 return -EINVAL;
3542 break;
3543 default:
3544 return -EINVAL;
3545 }
3546 } else {
3547 params.smps_mode = NL80211_SMPS_OFF;
3548 }
3549
6e8ef842
PK		 3550 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3551 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3552 return -EOPNOTSUPP;
3553
4baf6bea
OO		 3554 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3555 params.acl = parse_acl_data(&rdev->wiphy, info);
3556 if (IS_ERR(params.acl))
3557 return PTR_ERR(params.acl);
3558 }
3559
c56589ed 3560 wdev_lock(wdev);
e35e4d28 3561 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3562 if (!err) {
683b6d3b 3563 wdev->preset_chandef = params.chandef;
8860020e 3564 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3565 wdev->chandef = params.chandef;
06e191e2
AQ		 3566 wdev->ssid_len = params.ssid_len;
3567 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3568 }
c56589ed 3569 wdev_unlock(wdev);
77765eaf
VT		 3570
3571 kfree(params.acl);
3572
56d1893d 3573 return err;
ed1b6cc7
JB		 3574}
3575
8860020e
JB		 3576static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3577{
3578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3579 struct net_device *dev = info->user_ptr[1];
3580 struct wireless_dev *wdev = dev->ieee80211_ptr;
3581 struct cfg80211_beacon_data params;
3582 int err;
3583
3584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3585 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3586 return -EOPNOTSUPP;
3587
3588 if (!rdev->ops->change_beacon)
3589 return -EOPNOTSUPP;
3590
3591 if (!wdev->beacon_interval)
3592 return -EINVAL;
3593
a1193be8 3594 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3595 if (err)
3596 return err;
3597
c56589ed
SW		 3598 wdev_lock(wdev);
3599 err = rdev_change_beacon(rdev, dev, &params);
3600 wdev_unlock(wdev);
3601
3602 return err;
8860020e
JB		 3603}
3604
3605static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3606{
4c476991
JB		 3607 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3608 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3609
7c8d5e03 3610 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3611}
3612
5727ef1b
JB		 3613static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3614 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3615 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3616 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3617 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3618 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3619 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3620};
3621
eccb8e8f 3622static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3623 enum nl80211_iftype iftype,
eccb8e8f 3624 struct station_parameters *params)
5727ef1b
JB		 3625{
3626 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3627 struct nlattr *nla;
5727ef1b
JB		 3628 int flag;
3629
eccb8e8f
JB		 3630 /*
3631 * Try parsing the new attribute first so userspace
3632 * can specify both for older kernels.
3633 */
3634 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3635 if (nla) {
3636 struct nl80211_sta_flag_update *sta_flags;
3637
3638 sta_flags = nla_data(nla);
3639 params->sta_flags_mask = sta_flags->mask;
3640 params->sta_flags_set = sta_flags->set;
77ee7c89 3641 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3642 if ((params->sta_flags_mask |
3643 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3644 return -EINVAL;
3645 return 0;
3646 }
3647
3648 /* if present, parse the old attribute */
5727ef1b 3649
eccb8e8f 3650 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3651 if (!nla)
3652 return 0;
3653
3654 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3655 nla, sta_flags_policy))
3656 return -EINVAL;
3657
bdd3ae3d
JB		 3658 /*
3659 * Only allow certain flags for interface types so that
3660 * other attributes are silently ignored. Remember that
3661 * this is backward compatibility code with old userspace
3662 * and shouldn't be hit in other cases anyway.
3663 */
3664 switch (iftype) {
3665 case NL80211_IFTYPE_AP:
3666 case NL80211_IFTYPE_AP_VLAN:
3667 case NL80211_IFTYPE_P2P_GO:
3668 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3669 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3670 BIT(NL80211_STA_FLAG_WME) |
3671 BIT(NL80211_STA_FLAG_MFP);
3672 break;
3673 case NL80211_IFTYPE_P2P_CLIENT:
3674 case NL80211_IFTYPE_STATION:
3675 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3676 BIT(NL80211_STA_FLAG_TDLS_PEER);
3677 break;
3678 case NL80211_IFTYPE_MESH_POINT:
3679 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3680 BIT(NL80211_STA_FLAG_MFP) |
3681 BIT(NL80211_STA_FLAG_AUTHORIZED);
3682 default:
3683 return -EINVAL;
3684 }
5727ef1b 3685
3383b5a6
JB		 3686 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3687 if (flags[flag]) {
eccb8e8f 3688 params->sta_flags_set |= (1<<flag);
5727ef1b 3689
3383b5a6
JB		 3690 /* no longer support new API additions in old API */
3691 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3692 return -EINVAL;
3693 }
3694 }
3695
5727ef1b
JB		 3696 return 0;
3697}
3698
c8dcfd8a
FF		 3699static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3700 int attr)
3701{
3702 struct nlattr *rate;
8eb41c8d
VK		 3703 u32 bitrate;
3704 u16 bitrate_compat;
b51f3bee 3705 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3706
3707 rate = nla_nest_start(msg, attr);
3708 if (!rate)
db9c64cf 3709 return false;
c8dcfd8a
FF		 3710
3711 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3712 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3713 /* report 16-bit bitrate only if we can */
3714 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3715 if (bitrate > 0 &&
3716 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3717 return false;
3718 if (bitrate_compat > 0 &&
3719 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3720 return false;
3721
b51f3bee
JB		 3722 switch (info->bw) {
3723 case RATE_INFO_BW_5:
3724 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3725 break;
3726 case RATE_INFO_BW_10:
3727 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3728 break;
3729 default:
3730 WARN_ON(1);
3731 /* fall through */
3732 case RATE_INFO_BW_20:
3733 rate_flg = 0;
3734 break;
3735 case RATE_INFO_BW_40:
3736 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3737 break;
3738 case RATE_INFO_BW_80:
3739 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3740 break;
3741 case RATE_INFO_BW_160:
3742 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3743 break;
3744 }
3745
3746 if (rate_flg && nla_put_flag(msg, rate_flg))
3747 return false;
3748
db9c64cf
JB		 3749 if (info->flags & RATE_INFO_FLAGS_MCS) {
3750 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3751 return false;
db9c64cf
JB		 3752 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3753 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3754 return false;
3755 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3756 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3757 return false;
3758 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3759 return false;
db9c64cf
JB		 3760 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3761 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3762 return false;
3763 }
c8dcfd8a
FF		 3764
3765 nla_nest_end(msg, rate);
3766 return true;
c8dcfd8a
FF		 3767}
3768
119363c7
FF		 3769static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3770 int id)
3771{
3772 void *attr;
3773 int i = 0;
3774
3775 if (!mask)
3776 return true;
3777
3778 attr = nla_nest_start(msg, id);
3779 if (!attr)
3780 return false;
3781
3782 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3783 if (!(mask & BIT(i)))
3784 continue;
3785
3786 if (nla_put_u8(msg, i, signal[i]))
3787 return false;
3788 }
3789
3790 nla_nest_end(msg, attr);
3791
3792 return true;
3793}
3794
cf5ead82
JB		 3795static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3796 u32 seq, int flags,
66266b3a
JL		 3797 struct cfg80211_registered_device *rdev,
3798 struct net_device *dev,
98b62183 3799 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3800{
3801 void *hdr;
f4263c98 3802 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3803
cf5ead82 3804 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3805 if (!hdr)
3806 return -1;
3807
9360ffd1
DM		 3808 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3809 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3810 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3811 goto nla_put_failure;
f5ea9120 3812
2ec600d6
LCC		 3813 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3814 if (!sinfoattr)
fd5b74dc 3815 goto nla_put_failure;
319090bf
JB		 3816
3817#define PUT_SINFO(attr, memb, type) do { \
d686b920 3818 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 3819 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 3820 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3821 sinfo->memb)) \
3822 goto nla_put_failure; \
3823 } while (0)
d686b920
JB		 3824#define PUT_SINFO_U64(attr, memb) do { \
3825 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3826 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
3827 sinfo->memb, NL80211_STA_INFO_PAD)) \
3828 goto nla_put_failure; \
3829 } while (0)
319090bf
JB		 3830
3831 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3832 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3833
3834 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3835 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3836 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3837 (u32)sinfo->rx_bytes))
9360ffd1 3838 goto nla_put_failure;
319090bf
JB		 3839
3840 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3841 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3842 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3843 (u32)sinfo->tx_bytes))
3844 goto nla_put_failure;
319090bf 3845
d686b920
JB		 3846 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
3847 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 3848 PUT_SINFO(LLID, llid, u16);
3849 PUT_SINFO(PLID, plid, u16);
3850 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 3851 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 3852
66266b3a
JL		 3853 switch (rdev->wiphy.signal_type) {
3854 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3855 PUT_SINFO(SIGNAL, signal, u8);
3856 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3857 break;
3858 default:
3859 break;
3860 }
319090bf 3861 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3862 if (!nl80211_put_signal(msg, sinfo->chains,
3863 sinfo->chain_signal,
3864 NL80211_STA_INFO_CHAIN_SIGNAL))
3865 goto nla_put_failure;
3866 }
319090bf 3867 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3868 if (!nl80211_put_signal(msg, sinfo->chains,
3869 sinfo->chain_signal_avg,
3870 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3871 goto nla_put_failure;
3872 }
319090bf 3873 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3874 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3875 NL80211_STA_INFO_TX_BITRATE))
3876 goto nla_put_failure;
3877 }
319090bf 3878 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3879 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3880 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3881 goto nla_put_failure;
420e7fab 3882 }
319090bf
JB		 3883
3884 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3885 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3886 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3887 PUT_SINFO(TX_FAILED, tx_failed, u32);
3888 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3889 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3890 PUT_SINFO(LOCAL_PM, local_pm, u32);
3891 PUT_SINFO(PEER_PM, peer_pm, u32);
3892 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3893
3894 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3895 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3896 if (!bss_param)
3897 goto nla_put_failure;
3898
9360ffd1
DM		 3899 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3900 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3901 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3902 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3903 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3904 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3905 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3906 sinfo->bss_param.dtim_period) ||
3907 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3908 sinfo->bss_param.beacon_interval))
3909 goto nla_put_failure;
f4263c98
PS		 3910
3911 nla_nest_end(msg, bss_param);
3912 }
319090bf 3913 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3914 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3915 sizeof(struct nl80211_sta_flag_update),
3916 &sinfo->sta_flags))
3917 goto nla_put_failure;
319090bf 3918
d686b920
JB		 3919 PUT_SINFO_U64(T_OFFSET, t_offset);
3920 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
3921 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 3922 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3923
3924#undef PUT_SINFO
d686b920 3925#undef PUT_SINFO_U64
6de39808
JB		 3926
3927 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3928 struct nlattr *tidsattr;
3929 int tid;
3930
3931 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3932 if (!tidsattr)
3933 goto nla_put_failure;
3934
3935 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3936 struct cfg80211_tid_stats *tidstats;
3937 struct nlattr *tidattr;
3938
3939 tidstats = &sinfo->pertid[tid];
3940
3941 if (!tidstats->filled)
3942 continue;
3943
3944 tidattr = nla_nest_start(msg, tid + 1);
3945 if (!tidattr)
3946 goto nla_put_failure;
3947
d686b920 3948#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 3949 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 3950 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
3951 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 3952 goto nla_put_failure; \
3953 } while (0)
3954
d686b920
JB		 3955 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
3956 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
3957 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
3958 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 3959
d686b920 3960#undef PUT_TIDVAL_U64
6de39808
JB		 3961 nla_nest_end(msg, tidattr);
3962 }
3963
3964 nla_nest_end(msg, tidsattr);
3965 }
3966
2ec600d6 3967 nla_nest_end(msg, sinfoattr);
fd5b74dc 3968
319090bf 3969 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3970 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3971 sinfo->assoc_req_ies))
3972 goto nla_put_failure;
50d3dfb7 3973
053c095a
JB		 3974 genlmsg_end(msg, hdr);
3975 return 0;
fd5b74dc
JB		 3976
3977 nla_put_failure:
bc3ed28c
TG		 3978 genlmsg_cancel(msg, hdr);
3979 return -EMSGSIZE;
fd5b74dc
JB		 3980}
3981
2ec600d6 3982static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3983 struct netlink_callback *cb)
2ec600d6 3984{
2ec600d6 3985 struct station_info sinfo;
1b8ec87a 3986 struct cfg80211_registered_device *rdev;
97990a06 3987 struct wireless_dev *wdev;
2ec600d6 3988 u8 mac_addr[ETH_ALEN];
97990a06 3989 int sta_idx = cb->args[2];
2ec600d6 3990 int err;
2ec600d6 3991
1b8ec87a 3992 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3993 if (err)
3994 return err;
bba95fef 3995
97990a06
JB		 3996 if (!wdev->netdev) {
3997 err = -EINVAL;
3998 goto out_err;
3999 }
4000
1b8ec87a 4001 if (!rdev->ops->dump_station) {
eec60b03 4002 err = -EOPNOTSUPP;
bba95fef
JB		 4003 goto out_err;
4004 }
4005
bba95fef 4006 while (1) {
f612cedf 4007 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4008 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4009 mac_addr, &sinfo);
bba95fef
JB		 4010 if (err == -ENOENT)
4011 break;
4012 if (err)
3b85875a 4013 goto out_err;
bba95fef 4014
cf5ead82 4015 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4016 NETLINK_CB(cb->skb).portid,
bba95fef 4017 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4018 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4019 &sinfo) < 0)
4020 goto out;
4021
4022 sta_idx++;
4023 }
4024
bba95fef 4025 out:
97990a06 4026 cb->args[2] = sta_idx;
bba95fef 4027 err = skb->len;
bba95fef 4028 out_err:
1b8ec87a 4029 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4030
4031 return err;
2ec600d6 4032}
fd5b74dc 4033
5727ef1b
JB		 4034static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4035{
4c476991
JB		 4036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4037 struct net_device *dev = info->user_ptr[1];
2ec600d6 4038 struct station_info sinfo;
fd5b74dc
JB		 4039 struct sk_buff *msg;
4040 u8 *mac_addr = NULL;
4c476991 4041 int err;
fd5b74dc 4042
2ec600d6 4043 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4044
4045 if (!info->attrs[NL80211_ATTR_MAC])
4046 return -EINVAL;
4047
4048 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4049
4c476991
JB		 4050 if (!rdev->ops->get_station)
4051 return -EOPNOTSUPP;
3b85875a 4052
e35e4d28 4053 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4054 if (err)
4c476991 4055 return err;
2ec600d6 4056
fd2120ca 4057 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4058 if (!msg)
4c476991 4059 return -ENOMEM;
fd5b74dc 4060
cf5ead82
JB		 4061 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4062 info->snd_portid, info->snd_seq, 0,
66266b3a 4063 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4064 nlmsg_free(msg);
4065 return -ENOBUFS;
4066 }
3b85875a 4067
4c476991 4068 return genlmsg_reply(msg, info);
5727ef1b
JB		 4069}
4070
77ee7c89
JB		 4071int cfg80211_check_station_change(struct wiphy *wiphy,
4072 struct station_parameters *params,
4073 enum cfg80211_station_type statype)
4074{
e4208427
AB		 4075 if (params->listen_interval != -1 &&
4076 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4077 return -EINVAL;
e4208427 4078
17b94247
AB		 4079 if (params->support_p2p_ps != -1 &&
4080 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4081 return -EINVAL;
4082
c72e1140 4083 if (params->aid &&
e4208427
AB		 4084 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4085 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4086 return -EINVAL;
4087
4088 /* When you run into this, adjust the code below for the new flag */
4089 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4090
4091 switch (statype) {
eef941e6
TP		 4092 case CFG80211_STA_MESH_PEER_KERNEL:
4093 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4094 /*
4095 * No ignoring the TDLS flag here -- the userspace mesh
4096 * code doesn't have the bug of including TDLS in the
4097 * mask everywhere.
4098 */
4099 if (params->sta_flags_mask &
4100 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4101 BIT(NL80211_STA_FLAG_MFP) |
4102 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4103 return -EINVAL;
4104 break;
4105 case CFG80211_STA_TDLS_PEER_SETUP:
4106 case CFG80211_STA_TDLS_PEER_ACTIVE:
4107 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4108 return -EINVAL;
4109 /* ignore since it can't change */
4110 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4111 break;
4112 default:
4113 /* disallow mesh-specific things */
4114 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4115 return -EINVAL;
4116 if (params->local_pm)
4117 return -EINVAL;
4118 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4119 return -EINVAL;
4120 }
4121
4122 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4123 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4124 /* TDLS can't be set, ... */
4125 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4126 return -EINVAL;
4127 /*
4128 * ... but don't bother the driver with it. This works around
4129 * a hostapd/wpa_supplicant issue -- it always includes the
4130 * TLDS_PEER flag in the mask even for AP mode.
4131 */
4132 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4133 }
4134
47edb11b
AB		 4135 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4136 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4137 /* reject other things that can't change */
4138 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4139 return -EINVAL;
4140 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4141 return -EINVAL;
4142 if (params->supported_rates)
4143 return -EINVAL;
4144 if (params->ext_capab || params->ht_capa || params->vht_capa)
4145 return -EINVAL;
4146 }
4147
47edb11b
AB		 4148 if (statype != CFG80211_STA_AP_CLIENT &&
4149 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4150 if (params->vlan)
4151 return -EINVAL;
4152 }
4153
4154 switch (statype) {
4155 case CFG80211_STA_AP_MLME_CLIENT:
4156 /* Use this only for authorizing/unauthorizing a station */
4157 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4158 return -EOPNOTSUPP;
4159 break;
4160 case CFG80211_STA_AP_CLIENT:
47edb11b 4161 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4162 /* accept only the listed bits */
4163 if (params->sta_flags_mask &
4164 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4165 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4166 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4167 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4168 BIT(NL80211_STA_FLAG_WME) |
4169 BIT(NL80211_STA_FLAG_MFP)))
4170 return -EINVAL;
4171
4172 /* but authenticated/associated only if driver handles it */
4173 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4174 params->sta_flags_mask &
4175 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4176 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4177 return -EINVAL;
4178 break;
4179 case CFG80211_STA_IBSS:
4180 case CFG80211_STA_AP_STA:
4181 /* reject any changes other than AUTHORIZED */
4182 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4183 return -EINVAL;
4184 break;
4185 case CFG80211_STA_TDLS_PEER_SETUP:
4186 /* reject any changes other than AUTHORIZED or WME */
4187 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4188 BIT(NL80211_STA_FLAG_WME)))
4189 return -EINVAL;
4190 /* force (at least) rates when authorizing */
4191 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4192 !params->supported_rates)
4193 return -EINVAL;
4194 break;
4195 case CFG80211_STA_TDLS_PEER_ACTIVE:
4196 /* reject any changes */
4197 return -EINVAL;
eef941e6 4198 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4199 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4200 return -EINVAL;
4201 break;
eef941e6 4202 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4203 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4204 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4205 return -EINVAL;
4206 break;
4207 }
4208
4209 return 0;
4210}
4211EXPORT_SYMBOL(cfg80211_check_station_change);
4212
5727ef1b 4213/*
c258d2de 4214 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4215 */
80b99899
JB		 4216static struct net_device *get_vlan(struct genl_info *info,
4217 struct cfg80211_registered_device *rdev)
5727ef1b 4218{
463d0183 4219 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4220 struct net_device *v;
4221 int ret;
4222
4223 if (!vlanattr)
4224 return NULL;
4225
4226 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4227 if (!v)
4228 return ERR_PTR(-ENODEV);
4229
4230 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4231 ret = -EINVAL;
4232 goto error;
5727ef1b 4233 }
80b99899 4234
77ee7c89
JB		 4235 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4236 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4237 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4238 ret = -EINVAL;
4239 goto error;
4240 }
4241
80b99899
JB		 4242 if (!netif_running(v)) {
4243 ret = -ENETDOWN;
4244 goto error;
4245 }
4246
4247 return v;
4248 error:
4249 dev_put(v);
4250 return ERR_PTR(ret);
5727ef1b
JB		 4251}
4252
94e860f1
JB		 4253static const struct nla_policy
4254nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4255 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4256 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4257};
4258
ff276691
JB		 4259static int nl80211_parse_sta_wme(struct genl_info *info,
4260 struct station_parameters *params)
df881293 4261{
df881293
JM		 4262 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4263 struct nlattr *nla;
4264 int err;
4265
df881293
JM		 4266 /* parse WME attributes if present */
4267 if (!info->attrs[NL80211_ATTR_STA_WME])
4268 return 0;
4269
4270 nla = info->attrs[NL80211_ATTR_STA_WME];
4271 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4272 nl80211_sta_wme_policy);
4273 if (err)
4274 return err;
4275
4276 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4277 params->uapsd_queues = nla_get_u8(
4278 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4279 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4280 return -EINVAL;
4281
4282 if (tb[NL80211_STA_WME_MAX_SP])
4283 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4284
4285 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4286 return -EINVAL;
4287
4288 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4289
4290 return 0;
4291}
4292
c01fc9ad
SD		 4293static int nl80211_parse_sta_channel_info(struct genl_info *info,
4294 struct station_parameters *params)
4295{
4296 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4297 params->supported_channels =
4298 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4299 params->supported_channels_len =
4300 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4301 /*
4302 * Need to include at least one (first channel, number of
4303 * channels) tuple for each subband, and must have proper
4304 * tuples for the rest of the data as well.
4305 */
4306 if (params->supported_channels_len < 2)
4307 return -EINVAL;
4308 if (params->supported_channels_len % 2)
4309 return -EINVAL;
4310 }
4311
4312 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4313 params->supported_oper_classes =
4314 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4315 params->supported_oper_classes_len =
4316 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4317 /*
4318 * The value of the Length field of the Supported Operating
4319 * Classes element is between 2 and 253.
4320 */
4321 if (params->supported_oper_classes_len < 2 ||
4322 params->supported_oper_classes_len > 253)
4323 return -EINVAL;
4324 }
4325 return 0;
4326}
4327
ff276691
JB		 4328static int nl80211_set_station_tdls(struct genl_info *info,
4329 struct station_parameters *params)
4330{
c01fc9ad 4331 int err;
ff276691 4332 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4333 if (info->attrs[NL80211_ATTR_PEER_AID])
4334 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4335 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4336 params->ht_capa =
4337 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4338 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4339 params->vht_capa =
4340 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4341
c01fc9ad
SD		 4342 err = nl80211_parse_sta_channel_info(info, params);
4343 if (err)
4344 return err;
4345
ff276691
JB		 4346 return nl80211_parse_sta_wme(info, params);
4347}
4348
5727ef1b
JB		 4349static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4350{
4c476991 4351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4352 struct net_device *dev = info->user_ptr[1];
5727ef1b 4353 struct station_parameters params;
77ee7c89
JB		 4354 u8 *mac_addr;
4355 int err;
5727ef1b
JB		 4356
4357 memset(&params, 0, sizeof(params));
4358
77ee7c89
JB		 4359 if (!rdev->ops->change_station)
4360 return -EOPNOTSUPP;
4361
e4208427
AB		 4362 /*
4363 * AID and listen_interval properties can be set only for unassociated
4364 * station. Include these parameters here and will check them in
4365 * cfg80211_check_station_change().
4366 */
a9bc31e4
AB		 4367 if (info->attrs[NL80211_ATTR_STA_AID])
4368 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4369
4370 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4371 params.listen_interval =
4372 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4373 else
4374 params.listen_interval = -1;
5727ef1b 4375
17b94247
AB		 4376 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4377 u8 tmp;
4378
4379 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4380 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4381 return -EINVAL;
4382
4383 params.support_p2p_ps = tmp;
4384 } else {
4385 params.support_p2p_ps = -1;
4386 }
4387
5727ef1b
JB		 4388 if (!info->attrs[NL80211_ATTR_MAC])
4389 return -EINVAL;
4390
4391 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4392
4393 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4394 params.supported_rates =
4395 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4396 params.supported_rates_len =
4397 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4398 }
4399
9d62a986
JM		 4400 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4401 params.capability =
4402 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4403 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4404 }
4405
4406 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4407 params.ext_capab =
4408 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4409 params.ext_capab_len =
4410 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4411 }
4412
bdd3ae3d 4413 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4414 return -EINVAL;
4415
f8bacc21 4416 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4417 params.plink_action =
f8bacc21
JB		 4418 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4419 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4420 return -EINVAL;
4421 }
2ec600d6 4422
f8bacc21 4423 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4424 params.plink_state =
f8bacc21
JB		 4425 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4426 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4427 return -EINVAL;
7d27a0ba
MH		 4428 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4429 params.peer_aid = nla_get_u16(
4430 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4431 if (params.peer_aid > IEEE80211_MAX_AID)
4432 return -EINVAL;
4433 }
f8bacc21
JB		 4434 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4435 }
9c3990aa 4436
3b1c5a53
MP		 4437 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4438 enum nl80211_mesh_power_mode pm = nla_get_u32(
4439 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4440
4441 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4442 pm > NL80211_MESH_POWER_MAX)
4443 return -EINVAL;
4444
4445 params.local_pm = pm;
4446 }
4447
77ee7c89
JB		 4448 /* Include parameters for TDLS peer (will check later) */
4449 err = nl80211_set_station_tdls(info, &params);
4450 if (err)
4451 return err;
4452
4453 params.vlan = get_vlan(info, rdev);
4454 if (IS_ERR(params.vlan))
4455 return PTR_ERR(params.vlan);
4456
a97f4424
JB		 4457 switch (dev->ieee80211_ptr->iftype) {
4458 case NL80211_IFTYPE_AP:
4459 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4460 case NL80211_IFTYPE_P2P_GO:
074ac8df 4461 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4462 case NL80211_IFTYPE_STATION:
267335d6 4463 case NL80211_IFTYPE_ADHOC:
a97f4424 4464 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4465 break;
4466 default:
77ee7c89
JB		 4467 err = -EOPNOTSUPP;
4468 goto out_put_vlan;
034d655e
JB		 4469 }
4470
77ee7c89 4471 /* driver will call cfg80211_check_station_change() */
e35e4d28 4472 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4473
77ee7c89 4474 out_put_vlan:
5727ef1b
JB		 4475 if (params.vlan)
4476 dev_put(params.vlan);
3b85875a 4477
5727ef1b
JB		 4478 return err;
4479}
4480
4481static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4482{
4c476991 4483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4484 int err;
4c476991 4485 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4486 struct station_parameters params;
4487 u8 *mac_addr = NULL;
bda95eb1
JB		 4488 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4489 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4490
4491 memset(&params, 0, sizeof(params));
4492
984c311b
JB		 4493 if (!rdev->ops->add_station)
4494 return -EOPNOTSUPP;
4495
5727ef1b
JB		 4496 if (!info->attrs[NL80211_ATTR_MAC])
4497 return -EINVAL;
4498
5727ef1b
JB		 4499 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4500 return -EINVAL;
4501
4502 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4503 return -EINVAL;
4504
5e4b6f56
JM		 4505 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4506 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4507 return -EINVAL;
4508
5727ef1b
JB		 4509 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4510 params.supported_rates =
4511 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4512 params.supported_rates_len =
4513 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4514 params.listen_interval =
4515 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4516
17b94247
AB		 4517 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4518 u8 tmp;
4519
4520 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4521 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4522 return -EINVAL;
4523
4524 params.support_p2p_ps = tmp;
4525 } else {
4526 /*
4527 * if not specified, assume it's supported for P2P GO interface,
4528 * and is NOT supported for AP interface
4529 */
4530 params.support_p2p_ps =
4531 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4532 }
4533
3d124ea2 4534 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4535 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4536 else
4537 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4538 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4539 return -EINVAL;
51b50fbe 4540
9d62a986
JM		 4541 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4542 params.capability =
4543 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4544 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4545 }
4546
4547 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4548 params.ext_capab =
4549 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4550 params.ext_capab_len =
4551 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4552 }
4553
36aedc90
JM		 4554 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4555 params.ht_capa =
4556 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4557
f461be3e
MP		 4558 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4559 params.vht_capa =
4560 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4561
60f4a7b1
MK		 4562 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4563 params.opmode_notif_used = true;
4564 params.opmode_notif =
4565 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4566 }
4567
f8bacc21 4568 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4569 params.plink_action =
f8bacc21
JB		 4570 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4571 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4572 return -EINVAL;
4573 }
96b78dff 4574
c01fc9ad
SD		 4575 err = nl80211_parse_sta_channel_info(info, &params);
4576 if (err)
4577 return err;
4578
ff276691
JB		 4579 err = nl80211_parse_sta_wme(info, &params);
4580 if (err)
4581 return err;
bdd90d5e 4582
bdd3ae3d 4583 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4584 return -EINVAL;
4585
496fcc29
JB		 4586 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4587 * as userspace might just pass through the capabilities from the IEs
4588 * directly, rather than enforcing this restriction and returning an
4589 * error in this case.
4590 */
4591 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4592 params.ht_capa = NULL;
4593 params.vht_capa = NULL;
4594 }
4595
77ee7c89
JB		 4596 /* When you run into this, adjust the code below for the new flag */
4597 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4598
bdd90d5e
JB		 4599 switch (dev->ieee80211_ptr->iftype) {
4600 case NL80211_IFTYPE_AP:
4601 case NL80211_IFTYPE_AP_VLAN:
4602 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4603 /* ignore WME attributes if iface/sta is not capable */
4604 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4605 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4606 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4607
bdd90d5e 4608 /* TDLS peers cannot be added */
3d124ea2
JM		 4609 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4610 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4611 return -EINVAL;
bdd90d5e
JB		 4612 /* but don't bother the driver with it */
4613 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4614
d582cffb
JB		 4615 /* allow authenticated/associated only if driver handles it */
4616 if (!(rdev->wiphy.features &
4617 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4618 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4619 return -EINVAL;
4620
bda95eb1
JB		 4621 /* Older userspace, or userspace wanting to be compatible with
4622 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4623 * and assoc flags in the mask, but assumes the station will be
4624 * added as associated anyway since this was the required driver
4625 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4626 * introduced.
4627 * In order to not bother drivers with this quirk in the API
4628 * set the flags in both the mask and set for new stations in
4629 * this case.
4630 */
4631 if (!(params.sta_flags_mask & auth_assoc)) {
4632 params.sta_flags_mask |= auth_assoc;
4633 params.sta_flags_set |= auth_assoc;
4634 }
4635
bdd90d5e
JB		 4636 /* must be last in here for error handling */
4637 params.vlan = get_vlan(info, rdev);
4638 if (IS_ERR(params.vlan))
4639 return PTR_ERR(params.vlan);
4640 break;
4641 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4642 /* ignore uAPSD data */
4643 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4644
d582cffb
JB		 4645 /* associated is disallowed */
4646 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4647 return -EINVAL;
bdd90d5e 4648 /* TDLS peers cannot be added */
3d124ea2
JM		 4649 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4650 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4651 return -EINVAL;
4652 break;
4653 case NL80211_IFTYPE_STATION:
93d08f0b 4654 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4655 /* ignore uAPSD data */
4656 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4657
77ee7c89
JB		 4658 /* these are disallowed */
4659 if (params.sta_flags_mask &
4660 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4661 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4662 return -EINVAL;
bdd90d5e
JB		 4663 /* Only TDLS peers can be added */
4664 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4665 return -EINVAL;
4666 /* Can only add if TDLS ... */
4667 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4668 return -EOPNOTSUPP;
4669 /* ... with external setup is supported */
4670 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4671 return -EOPNOTSUPP;
77ee7c89
JB		 4672 /*
4673 * Older wpa_supplicant versions always mark the TDLS peer
4674 * as authorized, but it shouldn't yet be.
4675 */
4676 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4677 break;
4678 default:
4679 return -EOPNOTSUPP;
c75786c9
EP		 4680 }
4681
bdd90d5e 4682 /* be aware of params.vlan when changing code here */
5727ef1b 4683
e35e4d28 4684 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4685
5727ef1b
JB		 4686 if (params.vlan)
4687 dev_put(params.vlan);
5727ef1b
JB		 4688 return err;
4689}
4690
4691static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4692{
4c476991
JB		 4693 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4694 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4695 struct station_del_parameters params;
4696
4697 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4698
4699 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4700 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4701
e80cf853 4702 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4703 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4704 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4705 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4706 return -EINVAL;
5727ef1b 4707
4c476991
JB		 4708 if (!rdev->ops->del_station)
4709 return -EOPNOTSUPP;
3b85875a 4710
98856866
JM		 4711 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4712 params.subtype =
4713 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4714 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4715 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4716 return -EINVAL;
4717 } else {
4718 /* Default to Deauthentication frame */
4719 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4720 }
4721
4722 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4723 params.reason_code =
4724 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4725 if (params.reason_code == 0)
4726 return -EINVAL; /* 0 is reserved */
4727 } else {
4728 /* Default to reason code 2 */
4729 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4730 }
4731
89c771e5 4732 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4733}
4734
15e47304 4735static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4736 int flags, struct net_device *dev,
4737 u8 *dst, u8 *next_hop,
4738 struct mpath_info *pinfo)
4739{
4740 void *hdr;
4741 struct nlattr *pinfoattr;
4742
1ef4c850 4743 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4744 if (!hdr)
4745 return -1;
4746
9360ffd1
DM		 4747 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4748 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4749 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4750 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4751 goto nla_put_failure;
f5ea9120 4752
2ec600d6
LCC		 4753 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4754 if (!pinfoattr)
4755 goto nla_put_failure;
9360ffd1
DM		 4756 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4757 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4758 pinfo->frame_qlen))
4759 goto nla_put_failure;
4760 if (((pinfo->filled & MPATH_INFO_SN) &&
4761 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4762 ((pinfo->filled & MPATH_INFO_METRIC) &&
4763 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4764 pinfo->metric)) ||
4765 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4766 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4767 pinfo->exptime)) ||
4768 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4769 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4770 pinfo->flags)) ||
4771 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4772 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4773 pinfo->discovery_timeout)) ||
4774 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4775 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4776 pinfo->discovery_retries)))
4777 goto nla_put_failure;
2ec600d6
LCC		 4778
4779 nla_nest_end(msg, pinfoattr);
4780
053c095a
JB		 4781 genlmsg_end(msg, hdr);
4782 return 0;
2ec600d6
LCC		 4783
4784 nla_put_failure:
bc3ed28c
TG		 4785 genlmsg_cancel(msg, hdr);
4786 return -EMSGSIZE;
2ec600d6
LCC		 4787}
4788
4789static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4790 struct netlink_callback *cb)
2ec600d6 4791{
2ec600d6 4792 struct mpath_info pinfo;
1b8ec87a 4793 struct cfg80211_registered_device *rdev;
97990a06 4794 struct wireless_dev *wdev;
2ec600d6
LCC		 4795 u8 dst[ETH_ALEN];
4796 u8 next_hop[ETH_ALEN];
97990a06 4797 int path_idx = cb->args[2];
2ec600d6 4798 int err;
2ec600d6 4799
1b8ec87a 4800 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4801 if (err)
4802 return err;
bba95fef 4803
1b8ec87a 4804 if (!rdev->ops->dump_mpath) {
eec60b03 4805 err = -EOPNOTSUPP;
bba95fef
JB		 4806 goto out_err;
4807 }
4808
97990a06 4809 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4810 err = -EOPNOTSUPP;
0448b5fc 4811 goto out_err;
eec60b03
JM		 4812 }
4813
bba95fef 4814 while (1) {
1b8ec87a 4815 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4816 next_hop, &pinfo);
bba95fef 4817 if (err == -ENOENT)
2ec600d6 4818 break;
bba95fef 4819 if (err)
3b85875a 4820 goto out_err;
2ec600d6 4821
15e47304 4822 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4823 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4824 wdev->netdev, dst, next_hop,
bba95fef
JB		 4825 &pinfo) < 0)
4826 goto out;
2ec600d6 4827
bba95fef 4828 path_idx++;
2ec600d6 4829 }
2ec600d6 4830
bba95fef 4831 out:
97990a06 4832 cb->args[2] = path_idx;
bba95fef 4833 err = skb->len;
bba95fef 4834 out_err:
1b8ec87a 4835 nl80211_finish_wdev_dump(rdev);
bba95fef 4836 return err;
2ec600d6
LCC		 4837}
4838
4839static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4840{
4c476991 4841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4842 int err;
4c476991 4843 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4844 struct mpath_info pinfo;
4845 struct sk_buff *msg;
4846 u8 *dst = NULL;
4847 u8 next_hop[ETH_ALEN];
4848
4849 memset(&pinfo, 0, sizeof(pinfo));
4850
4851 if (!info->attrs[NL80211_ATTR_MAC])
4852 return -EINVAL;
4853
4854 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4855
4c476991
JB		 4856 if (!rdev->ops->get_mpath)
4857 return -EOPNOTSUPP;
2ec600d6 4858
4c476991
JB		 4859 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4860 return -EOPNOTSUPP;
eec60b03 4861
e35e4d28 4862 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4863 if (err)
4c476991 4864 return err;
2ec600d6 4865
fd2120ca 4866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4867 if (!msg)
4c476991 4868 return -ENOMEM;
2ec600d6 4869
15e47304 4870 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4871 dev, dst, next_hop, &pinfo) < 0) {
4872 nlmsg_free(msg);
4873 return -ENOBUFS;
4874 }
3b85875a 4875
4c476991 4876 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4877}
4878
4879static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4880{
4c476991
JB		 4881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4882 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4883 u8 *dst = NULL;
4884 u8 *next_hop = NULL;
4885
4886 if (!info->attrs[NL80211_ATTR_MAC])
4887 return -EINVAL;
4888
4889 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4890 return -EINVAL;
4891
4892 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4893 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4894
4c476991
JB		 4895 if (!rdev->ops->change_mpath)
4896 return -EOPNOTSUPP;
35a8efe1 4897
4c476991
JB		 4898 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4899 return -EOPNOTSUPP;
2ec600d6 4900
e35e4d28 4901 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4902}
4c476991 4903
2ec600d6
LCC		 4904static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4905{
4c476991
JB		 4906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4907 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4908 u8 *dst = NULL;
4909 u8 *next_hop = NULL;
4910
4911 if (!info->attrs[NL80211_ATTR_MAC])
4912 return -EINVAL;
4913
4914 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4915 return -EINVAL;
4916
4917 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4918 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4919
4c476991
JB		 4920 if (!rdev->ops->add_mpath)
4921 return -EOPNOTSUPP;
35a8efe1 4922
4c476991
JB		 4923 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4924 return -EOPNOTSUPP;
2ec600d6 4925
e35e4d28 4926 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4927}
4928
4929static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4930{
4c476991
JB		 4931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4932 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4933 u8 *dst = NULL;
4934
4935 if (info->attrs[NL80211_ATTR_MAC])
4936 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4937
4c476991
JB		 4938 if (!rdev->ops->del_mpath)
4939 return -EOPNOTSUPP;
3b85875a 4940
e35e4d28 4941 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4942}
4943
66be7d2b
HR		 4944static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4945{
4946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4947 int err;
4948 struct net_device *dev = info->user_ptr[1];
4949 struct mpath_info pinfo;
4950 struct sk_buff *msg;
4951 u8 *dst = NULL;
4952 u8 mpp[ETH_ALEN];
4953
4954 memset(&pinfo, 0, sizeof(pinfo));
4955
4956 if (!info->attrs[NL80211_ATTR_MAC])
4957 return -EINVAL;
4958
4959 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4960
4961 if (!rdev->ops->get_mpp)
4962 return -EOPNOTSUPP;
4963
4964 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4965 return -EOPNOTSUPP;
4966
4967 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4968 if (err)
4969 return err;
4970
4971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4972 if (!msg)
4973 return -ENOMEM;
4974
4975 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4976 dev, dst, mpp, &pinfo) < 0) {
4977 nlmsg_free(msg);
4978 return -ENOBUFS;
4979 }
4980
4981 return genlmsg_reply(msg, info);
4982}
4983
4984static int nl80211_dump_mpp(struct sk_buff *skb,
4985 struct netlink_callback *cb)
4986{
4987 struct mpath_info pinfo;
4988 struct cfg80211_registered_device *rdev;
4989 struct wireless_dev *wdev;
4990 u8 dst[ETH_ALEN];
4991 u8 mpp[ETH_ALEN];
4992 int path_idx = cb->args[2];
4993 int err;
4994
4995 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4996 if (err)
4997 return err;
4998
4999 if (!rdev->ops->dump_mpp) {
5000 err = -EOPNOTSUPP;
5001 goto out_err;
5002 }
5003
5004 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5005 err = -EOPNOTSUPP;
5006 goto out_err;
5007 }
5008
5009 while (1) {
5010 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5011 mpp, &pinfo);
5012 if (err == -ENOENT)
5013 break;
5014 if (err)
5015 goto out_err;
5016
5017 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5018 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5019 wdev->netdev, dst, mpp,
5020 &pinfo) < 0)
5021 goto out;
5022
5023 path_idx++;
5024 }
5025
5026 out:
5027 cb->args[2] = path_idx;
5028 err = skb->len;
5029 out_err:
5030 nl80211_finish_wdev_dump(rdev);
5031 return err;
5032}
5033
9f1ba906
JM		 5034static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5035{
4c476991
JB		 5036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5037 struct net_device *dev = info->user_ptr[1];
c56589ed 5038 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5039 struct bss_parameters params;
c56589ed 5040 int err;
9f1ba906
JM		 5041
5042 memset(&params, 0, sizeof(params));
5043 /* default to not changing parameters */
5044 params.use_cts_prot = -1;
5045 params.use_short_preamble = -1;
5046 params.use_short_slot_time = -1;
fd8aaaf3 5047 params.ap_isolate = -1;
50b12f59 5048 params.ht_opmode = -1;
53cabad7
JB		 5049 params.p2p_ctwindow = -1;
5050 params.p2p_opp_ps = -1;
9f1ba906
JM		 5051
5052 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5053 params.use_cts_prot =
5054 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5055 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5056 params.use_short_preamble =
5057 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5058 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5059 params.use_short_slot_time =
5060 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5061 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5062 params.basic_rates =
5063 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5064 params.basic_rates_len =
5065 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5066 }
fd8aaaf3
FF		 5067 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5068 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5069 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5070 params.ht_opmode =
5071 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5072
53cabad7
JB		 5073 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5074 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5075 return -EINVAL;
5076 params.p2p_ctwindow =
5077 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5078 if (params.p2p_ctwindow < 0)
5079 return -EINVAL;
5080 if (params.p2p_ctwindow != 0 &&
5081 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5082 return -EINVAL;
5083 }
5084
5085 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5086 u8 tmp;
5087
5088 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5089 return -EINVAL;
5090 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5091 if (tmp > 1)
5092 return -EINVAL;
5093 params.p2p_opp_ps = tmp;
5094 if (params.p2p_opp_ps &&
5095 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5096 return -EINVAL;
5097 }
5098
4c476991
JB		 5099 if (!rdev->ops->change_bss)
5100 return -EOPNOTSUPP;
9f1ba906 5101
074ac8df 5102 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5103 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5104 return -EOPNOTSUPP;
3b85875a 5105
c56589ed
SW		 5106 wdev_lock(wdev);
5107 err = rdev_change_bss(rdev, dev, &params);
5108 wdev_unlock(wdev);
5109
5110 return err;
9f1ba906
JM		 5111}
5112
b2e1b302
LR		 5113static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5114{
b2e1b302 5115 char *data = NULL;
05050753 5116 bool is_indoor;
57b5ce07 5117 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5118 u32 owner_nlportid;
5119
80778f18
LR		 5120 /*
5121 * You should only get this when cfg80211 hasn't yet initialized
5122 * completely when built-in to the kernel right between the time
5123 * window between nl80211_init() and regulatory_init(), if that is
5124 * even possible.
5125 */
458f4f9e 5126 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5127 return -EINPROGRESS;
80778f18 5128
57b5ce07
LR		 5129 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5130 user_reg_hint_type =
5131 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5132 else
5133 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5134
5135 switch (user_reg_hint_type) {
5136 case NL80211_USER_REG_HINT_USER:
5137 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5138 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5139 return -EINVAL;
5140
5141 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5142 return regulatory_hint_user(data, user_reg_hint_type);
5143 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5144 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5145 owner_nlportid = info->snd_portid;
5146 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5147 } else {
5148 owner_nlportid = 0;
5149 is_indoor = true;
5150 }
5151
5152 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5153 default:
5154 return -EINVAL;
5155 }
b2e1b302
LR		 5156}
5157
24bdd9f4 5158static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5159 struct genl_info *info)
93da9cc1 5160{
4c476991 5161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5162 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5163 struct wireless_dev *wdev = dev->ieee80211_ptr;
5164 struct mesh_config cur_params;
5165 int err = 0;
93da9cc1 5166 void *hdr;
5167 struct nlattr *pinfoattr;
5168 struct sk_buff *msg;
5169
29cbe68c
JB		 5170 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5171 return -EOPNOTSUPP;
5172
24bdd9f4 5173 if (!rdev->ops->get_mesh_config)
4c476991 5174 return -EOPNOTSUPP;
f3f92586 5175
29cbe68c
JB		 5176 wdev_lock(wdev);
5177 /* If not connected, get default parameters */
5178 if (!wdev->mesh_id_len)
5179 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5180 else
e35e4d28 5181 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5182 wdev_unlock(wdev);
5183
93da9cc1 5184 if (err)
4c476991 5185 return err;
93da9cc1 5186
5187 /* Draw up a netlink message to send back */
fd2120ca 5188 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5189 if (!msg)
5190 return -ENOMEM;
15e47304 5191 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5192 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5193 if (!hdr)
efe1cf0c 5194 goto out;
24bdd9f4 5195 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5196 if (!pinfoattr)
5197 goto nla_put_failure;
9360ffd1
DM		 5198 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5199 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5200 cur_params.dot11MeshRetryTimeout) ||
5201 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5202 cur_params.dot11MeshConfirmTimeout) ||
5203 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5204 cur_params.dot11MeshHoldingTimeout) ||
5205 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5206 cur_params.dot11MeshMaxPeerLinks) ||
5207 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5208 cur_params.dot11MeshMaxRetries) ||
5209 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5210 cur_params.dot11MeshTTL) ||
5211 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5212 cur_params.element_ttl) ||
5213 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5214 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5215 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5216 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5217 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5218 cur_params.dot11MeshHWMPmaxPREQretries) ||
5219 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5220 cur_params.path_refresh_time) ||
5221 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5222 cur_params.min_discovery_timeout) ||
5223 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5224 cur_params.dot11MeshHWMPactivePathTimeout) ||
5225 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5226 cur_params.dot11MeshHWMPpreqMinInterval) ||
5227 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5228 cur_params.dot11MeshHWMPperrMinInterval) ||
5229 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5230 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5231 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5232 cur_params.dot11MeshHWMPRootMode) ||
5233 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5234 cur_params.dot11MeshHWMPRannInterval) ||
5235 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5236 cur_params.dot11MeshGateAnnouncementProtocol) ||
5237 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5238 cur_params.dot11MeshForwarding) ||
5239 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5240 cur_params.rssi_threshold) ||
5241 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5242 cur_params.ht_opmode) ||
5243 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5244 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5245 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5246 cur_params.dot11MeshHWMProotInterval) ||
5247 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5248 cur_params.dot11MeshHWMPconfirmationInterval) ||
5249 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5250 cur_params.power_mode) ||
5251 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5252 cur_params.dot11MeshAwakeWindowDuration) ||
5253 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5254 cur_params.plink_timeout))
9360ffd1 5255 goto nla_put_failure;
93da9cc1 5256 nla_nest_end(msg, pinfoattr);
5257 genlmsg_end(msg, hdr);
4c476991 5258 return genlmsg_reply(msg, info);
93da9cc1 5259
3b85875a 5260 nla_put_failure:
93da9cc1 5261 genlmsg_cancel(msg, hdr);
efe1cf0c 5262 out:
d080e275 5263 nlmsg_free(msg);
4c476991 5264 return -ENOBUFS;
93da9cc1 5265}
5266
b54452b0 5267static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5268 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5269 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5270 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5271 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5272 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5273 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5274 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5275 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5276 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5277 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5278 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5279 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5280 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5281 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5282 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5283 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5284 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5285 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5286 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5287 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5288 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5289 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5290 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5291 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5292 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5293 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5294 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5295 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5296};
5297
c80d545d
JC		 5298static const struct nla_policy
5299 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5300 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5301 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5302 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5303 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5304 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5305 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5306 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5307 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5308 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5309};
5310
f151d9db
AB		 5311static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5312{
5313 u8 val = nla_get_u8(nla);
5314 if (val < min || val > max)
5315 return -EINVAL;
5316 *out = val;
5317 return 0;
5318}
5319
5320static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5321{
5322 u8 val = nla_get_u8(nla);
5323 if (val < min || val > max)
5324 return -EINVAL;
5325 *out = val;
5326 return 0;
5327}
5328
5329static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5330{
5331 u16 val = nla_get_u16(nla);
5332 if (val < min || val > max)
5333 return -EINVAL;
5334 *out = val;
5335 return 0;
5336}
5337
5338static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5339{
5340 u32 val = nla_get_u32(nla);
5341 if (val < min || val > max)
5342 return -EINVAL;
5343 *out = val;
5344 return 0;
5345}
5346
5347static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5348{
5349 s32 val = nla_get_s32(nla);
5350 if (val < min || val > max)
5351 return -EINVAL;
5352 *out = val;
5353 return 0;
5354}
5355
ff9a71af
JB		 5356static int nl80211_check_power_mode(const struct nlattr *nla,
5357 enum nl80211_mesh_power_mode min,
5358 enum nl80211_mesh_power_mode max,
5359 enum nl80211_mesh_power_mode *out)
5360{
5361 u32 val = nla_get_u32(nla);
5362 if (val < min || val > max)
5363 return -EINVAL;
5364 *out = val;
5365 return 0;
5366}
5367
24bdd9f4 5368static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5369 struct mesh_config *cfg,
5370 u32 *mask_out)
93da9cc1 5371{
93da9cc1 5372 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5373 u32 mask = 0;
9757235f 5374 u16 ht_opmode;
93da9cc1 5375
ea54fba2
MP		 5376#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5377do { \
5378 if (tb[attr]) { \
f151d9db 5379 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5380 return -EINVAL; \
ea54fba2
MP		 5381 mask |= (1 << (attr - 1)); \
5382 } \
5383} while (0)
bd90fdcc 5384
24bdd9f4 5385 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5386 return -EINVAL;
5387 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5388 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5389 nl80211_meshconf_params_policy))
93da9cc1 5390 return -EINVAL;
5391
93da9cc1 5392 /* This makes sure that there aren't more than 32 mesh config
5393 * parameters (otherwise our bitfield scheme would not work.) */
5394 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5395
5396 /* Fill in the params struct */
ea54fba2 5397 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5398 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5399 nl80211_check_u16);
ea54fba2 5400 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5401 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5402 nl80211_check_u16);
ea54fba2 5403 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5404 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5405 nl80211_check_u16);
ea54fba2 5406 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5407 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5408 nl80211_check_u16);
ea54fba2 5409 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5410 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5411 nl80211_check_u8);
ea54fba2 5412 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5413 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5414 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5415 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5416 nl80211_check_u8);
ea54fba2 5417 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5418 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5419 nl80211_check_bool);
ea54fba2
MP		 5420 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5421 1, 255, mask,
a4f606ea 5422 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5423 nl80211_check_u32);
ea54fba2 5424 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5425 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5426 nl80211_check_u8);
ea54fba2 5427 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5428 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5429 nl80211_check_u32);
ea54fba2 5430 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5431 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5432 nl80211_check_u16);
ea54fba2
MP		 5433 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5434 1, 65535, mask,
a4f606ea 5435 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5436 nl80211_check_u32);
93da9cc1 5437 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5438 1, 65535, mask,
5439 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5440 nl80211_check_u16);
dca7e943 5441 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5442 1, 65535, mask,
5443 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5444 nl80211_check_u16);
93da9cc1 5445 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5446 dot11MeshHWMPnetDiameterTraversalTime,
5447 1, 65535, mask,
a4f606ea 5448 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5449 nl80211_check_u16);
ea54fba2
MP		 5450 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5451 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5452 nl80211_check_u8);
ea54fba2
MP		 5453 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5454 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5455 nl80211_check_u16);
63c5723b 5456 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5457 dot11MeshGateAnnouncementProtocol, 0, 1,
5458 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5459 nl80211_check_bool);
ea54fba2 5460 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5461 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5462 nl80211_check_bool);
83374fe9 5463 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5464 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5465 nl80211_check_s32);
9757235f
MH		 5466 /*
5467 * Check HT operation mode based on
5468 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5469 */
5470 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5471 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5472
5473 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5474 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5475 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5476 return -EINVAL;
5477
5478 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5479 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5480 return -EINVAL;
5481
5482 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5483 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5484 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5485 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5486 return -EINVAL;
5487 break;
5488 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5489 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5490 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5491 return -EINVAL;
5492 break;
5493 }
5494 cfg->ht_opmode = ht_opmode;
5495 }
ac1073a6 5496 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5497 1, 65535, mask,
ac1073a6 5498 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5499 nl80211_check_u32);
ea54fba2 5500 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5501 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5502 nl80211_check_u16);
728b19e5 5503 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5504 dot11MeshHWMPconfirmationInterval,
5505 1, 65535, mask,
728b19e5 5506 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5507 nl80211_check_u16);
3b1c5a53
MP		 5508 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5509 NL80211_MESH_POWER_ACTIVE,
5510 NL80211_MESH_POWER_MAX,
5511 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5512 nl80211_check_power_mode);
3b1c5a53
MP		 5513 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5514 0, 65535, mask,
f151d9db 5515 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5516 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5517 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5518 nl80211_check_u32);
bd90fdcc
JB		 5519 if (mask_out)
5520 *mask_out = mask;
c80d545d 5521
bd90fdcc
JB		 5522 return 0;
5523
5524#undef FILL_IN_MESH_PARAM_IF_SET
5525}
5526
c80d545d
JC		 5527static int nl80211_parse_mesh_setup(struct genl_info *info,
5528 struct mesh_setup *setup)
5529{
bb2798d4 5530 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5531 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5532
5533 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5534 return -EINVAL;
5535 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5536 info->attrs[NL80211_ATTR_MESH_SETUP],
5537 nl80211_mesh_setup_params_policy))
5538 return -EINVAL;
5539
d299a1f2
JC		 5540 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5541 setup->sync_method =
5542 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5543 IEEE80211_SYNC_METHOD_VENDOR :
5544 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5545
c80d545d
JC		 5546 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5547 setup->path_sel_proto =
5548 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5549 IEEE80211_PATH_PROTOCOL_VENDOR :
5550 IEEE80211_PATH_PROTOCOL_HWMP;
5551
5552 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5553 setup->path_metric =
5554 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5555 IEEE80211_PATH_METRIC_VENDOR :
5556 IEEE80211_PATH_METRIC_AIRTIME;
5557
581a8b0f 5558 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5559 struct nlattr *ieattr =
581a8b0f 5560 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5561 if (!is_valid_ie_attr(ieattr))
5562 return -EINVAL;
581a8b0f
JC		 5563 setup->ie = nla_data(ieattr);
5564 setup->ie_len = nla_len(ieattr);
c80d545d 5565 }
bb2798d4
TP		 5566 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5567 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5568 return -EINVAL;
5569 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5570 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5571 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5572 if (setup->is_secure)
5573 setup->user_mpm = true;
c80d545d 5574
6e16d90b
CT		 5575 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5576 if (!setup->user_mpm)
5577 return -EINVAL;
5578 setup->auth_id =
5579 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5580 }
5581
c80d545d
JC		 5582 return 0;
5583}
5584
24bdd9f4 5585static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5586 struct genl_info *info)
bd90fdcc
JB		 5587{
5588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5589 struct net_device *dev = info->user_ptr[1];
29cbe68c 5590 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5591 struct mesh_config cfg;
5592 u32 mask;
5593 int err;
5594
29cbe68c
JB		 5595 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5596 return -EOPNOTSUPP;
5597
24bdd9f4 5598 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5599 return -EOPNOTSUPP;
5600
24bdd9f4 5601 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5602 if (err)
5603 return err;
5604
29cbe68c
JB		 5605 wdev_lock(wdev);
5606 if (!wdev->mesh_id_len)
5607 err = -ENOLINK;
5608
5609 if (!err)
e35e4d28 5610 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5611
5612 wdev_unlock(wdev);
5613
5614 return err;
93da9cc1 5615}
5616
ad30ca2c
AN		 5617static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5618 struct sk_buff *msg)
f130347c 5619{
f130347c
LR		 5620 struct nlattr *nl_reg_rules;
5621 unsigned int i;
f130347c 5622
458f4f9e
JB		 5623 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5624 (regdom->dfs_region &&
5625 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5626 goto nla_put_failure;
458f4f9e 5627
f130347c
LR		 5628 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5629 if (!nl_reg_rules)
ad30ca2c 5630 goto nla_put_failure;
f130347c 5631
458f4f9e 5632 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5633 struct nlattr *nl_reg_rule;
5634 const struct ieee80211_reg_rule *reg_rule;
5635 const struct ieee80211_freq_range *freq_range;
5636 const struct ieee80211_power_rule *power_rule;
97524820 5637 unsigned int max_bandwidth_khz;
f130347c 5638
458f4f9e 5639 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5640 freq_range = &reg_rule->freq_range;
5641 power_rule = &reg_rule->power_rule;
5642
5643 nl_reg_rule = nla_nest_start(msg, i);
5644 if (!nl_reg_rule)
ad30ca2c 5645 goto nla_put_failure;
f130347c 5646
97524820
JD		 5647 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5648 if (!max_bandwidth_khz)
5649 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5650 reg_rule);
5651
9360ffd1
DM		 5652 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5653 reg_rule->flags) ||
5654 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5655 freq_range->start_freq_khz) ||
5656 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5657 freq_range->end_freq_khz) ||
5658 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5659 max_bandwidth_khz) ||
9360ffd1
DM		 5660 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5661 power_rule->max_antenna_gain) ||
5662 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5663 power_rule->max_eirp) ||
5664 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5665 reg_rule->dfs_cac_ms))
ad30ca2c 5666 goto nla_put_failure;
f130347c
LR		 5667
5668 nla_nest_end(msg, nl_reg_rule);
5669 }
5670
5671 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5672 return 0;
5673
5674nla_put_failure:
5675 return -EMSGSIZE;
5676}
5677
5678static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5679{
5680 const struct ieee80211_regdomain *regdom = NULL;
5681 struct cfg80211_registered_device *rdev;
5682 struct wiphy *wiphy = NULL;
5683 struct sk_buff *msg;
5684 void *hdr;
5685
5686 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5687 if (!msg)
5688 return -ENOBUFS;
5689
5690 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5691 NL80211_CMD_GET_REG);
5692 if (!hdr)
5693 goto put_failure;
5694
5695 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5696 bool self_managed;
5697
ad30ca2c
AN		 5698 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5699 if (IS_ERR(rdev)) {
5700 nlmsg_free(msg);
5701 return PTR_ERR(rdev);
5702 }
5703
5704 wiphy = &rdev->wiphy;
1bdd716c
AN		 5705 self_managed = wiphy->regulatory_flags &
5706 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5707 regdom = get_wiphy_regdom(wiphy);
5708
1bdd716c
AN		 5709 /* a self-managed-reg device must have a private regdom */
5710 if (WARN_ON(!regdom && self_managed)) {
5711 nlmsg_free(msg);
5712 return -EINVAL;
5713 }
5714
ad30ca2c
AN		 5715 if (regdom &&
5716 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5717 goto nla_put_failure;
5718 }
5719
5720 if (!wiphy && reg_last_request_cell_base() &&
5721 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5722 NL80211_USER_REG_HINT_CELL_BASE))
5723 goto nla_put_failure;
5724
5725 rcu_read_lock();
5726
5727 if (!regdom)
5728 regdom = rcu_dereference(cfg80211_regdomain);
5729
5730 if (nl80211_put_regdom(regdom, msg))
5731 goto nla_put_failure_rcu;
5732
5733 rcu_read_unlock();
f130347c
LR		 5734
5735 genlmsg_end(msg, hdr);
5fe231e8 5736 return genlmsg_reply(msg, info);
f130347c 5737
458f4f9e
JB		 5738nla_put_failure_rcu:
5739 rcu_read_unlock();
f130347c
LR		 5740nla_put_failure:
5741 genlmsg_cancel(msg, hdr);
efe1cf0c 5742put_failure:
d080e275 5743 nlmsg_free(msg);
5fe231e8 5744 return -EMSGSIZE;
f130347c
LR		 5745}
5746
ad30ca2c
AN		 5747static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5748 u32 seq, int flags, struct wiphy *wiphy,
5749 const struct ieee80211_regdomain *regdom)
5750{
5751 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5752 NL80211_CMD_GET_REG);
5753
5754 if (!hdr)
5755 return -1;
5756
5757 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5758
5759 if (nl80211_put_regdom(regdom, msg))
5760 goto nla_put_failure;
5761
5762 if (!wiphy && reg_last_request_cell_base() &&
5763 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5764 NL80211_USER_REG_HINT_CELL_BASE))
5765 goto nla_put_failure;
5766
5767 if (wiphy &&
5768 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5769 goto nla_put_failure;
5770
1bdd716c
AN		 5771 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5772 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5773 goto nla_put_failure;
5774
053c095a
JB		 5775 genlmsg_end(msg, hdr);
5776 return 0;
ad30ca2c
AN		 5777
5778nla_put_failure:
5779 genlmsg_cancel(msg, hdr);
5780 return -EMSGSIZE;
5781}
5782
5783static int nl80211_get_reg_dump(struct sk_buff *skb,
5784 struct netlink_callback *cb)
5785{
5786 const struct ieee80211_regdomain *regdom = NULL;
5787 struct cfg80211_registered_device *rdev;
5788 int err, reg_idx, start = cb->args[2];
5789
5790 rtnl_lock();
5791
5792 if (cfg80211_regdomain && start == 0) {
5793 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5794 NLM_F_MULTI, NULL,
5795 rtnl_dereference(cfg80211_regdomain));
5796 if (err < 0)
5797 goto out_err;
5798 }
5799
5800 /* the global regdom is idx 0 */
5801 reg_idx = 1;
5802 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5803 regdom = get_wiphy_regdom(&rdev->wiphy);
5804 if (!regdom)
5805 continue;
5806
5807 if (++reg_idx <= start)
5808 continue;
5809
5810 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5811 NLM_F_MULTI, &rdev->wiphy, regdom);
5812 if (err < 0) {
5813 reg_idx--;
5814 break;
5815 }
5816 }
5817
5818 cb->args[2] = reg_idx;
5819 err = skb->len;
5820out_err:
5821 rtnl_unlock();
5822 return err;
5823}
5824
b6863036
JB		 5825#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5826static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5827 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5828 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5829 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5830 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5831 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5832 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5833 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5834};
5835
5836static int parse_reg_rule(struct nlattr *tb[],
5837 struct ieee80211_reg_rule *reg_rule)
5838{
5839 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5840 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5841
5842 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5843 return -EINVAL;
5844 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5845 return -EINVAL;
5846 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5847 return -EINVAL;
5848 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5849 return -EINVAL;
5850 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5851 return -EINVAL;
5852
5853 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5854
5855 freq_range->start_freq_khz =
5856 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5857 freq_range->end_freq_khz =
5858 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5859 freq_range->max_bandwidth_khz =
5860 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5861
5862 power_rule->max_eirp =
5863 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5864
5865 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5866 power_rule->max_antenna_gain =
5867 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5868
5869 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5870 reg_rule->dfs_cac_ms =
5871 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5872
5873 return 0;
5874}
5875
b2e1b302
LR		 5876static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5877{
5878 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5879 struct nlattr *nl_reg_rule;
ea372c54
JB		 5880 char *alpha2;
5881 int rem_reg_rules, r;
b2e1b302 5882 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5883 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5884 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5885
5886 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5887 return -EINVAL;
5888
5889 if (!info->attrs[NL80211_ATTR_REG_RULES])
5890 return -EINVAL;
5891
5892 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5893
8b60b078
LR		 5894 if (info->attrs[NL80211_ATTR_DFS_REGION])
5895 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5896
b2e1b302 5897 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5898 rem_reg_rules) {
b2e1b302
LR		 5899 num_rules++;
5900 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5901 return -EINVAL;
b2e1b302
LR		 5902 }
5903
e438768f
LR		 5904 if (!reg_is_valid_request(alpha2))
5905 return -EINVAL;
5906
b2e1b302 5907 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5908 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5909
5910 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5911 if (!rd)
5912 return -ENOMEM;
b2e1b302
LR		 5913
5914 rd->n_reg_rules = num_rules;
5915 rd->alpha2[0] = alpha2[0];
5916 rd->alpha2[1] = alpha2[1];
5917
8b60b078
LR		 5918 /*
5919 * Disable DFS master mode if the DFS region was
5920 * not supported or known on this kernel.
5921 */
5922 if (reg_supported_dfs_region(dfs_region))
5923 rd->dfs_region = dfs_region;
5924
b2e1b302 5925 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5926 rem_reg_rules) {
ae811e21
JB		 5927 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5928 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5929 reg_rule_policy);
5930 if (r)
5931 goto bad_reg;
b2e1b302
LR		 5932 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5933 if (r)
5934 goto bad_reg;
5935
5936 rule_idx++;
5937
d0e18f83
LR		 5938 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5939 r = -EINVAL;
b2e1b302 5940 goto bad_reg;
d0e18f83 5941 }
b2e1b302
LR		 5942 }
5943
06627990
JB		 5944 /* set_regdom takes ownership of rd */
5945 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 5946 bad_reg:
b2e1b302 5947 kfree(rd);
d0e18f83 5948 return r;
b2e1b302 5949}
b6863036 5950#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5951
83f5e2cf
JB		 5952static int validate_scan_freqs(struct nlattr *freqs)
5953{
5954 struct nlattr *attr1, *attr2;
5955 int n_channels = 0, tmp1, tmp2;
5956
5957 nla_for_each_nested(attr1, freqs, tmp1) {
5958 n_channels++;
5959 /*
5960 * Some hardware has a limited channel list for
5961 * scanning, and it is pretty much nonsensical
5962 * to scan for a channel twice, so disallow that
5963 * and don't require drivers to check that the
5964 * channel list they get isn't longer than what
5965 * they can scan, as long as they can scan all
5966 * the channels they registered at once.
5967 */
5968 nla_for_each_nested(attr2, freqs, tmp2)
5969 if (attr1 != attr2 &&
5970 nla_get_u32(attr1) == nla_get_u32(attr2))
5971 return 0;
5972 }
5973
5974 return n_channels;
5975}
5976
57fbcce3 5977static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 5978{
57fbcce3 5979 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 5980}
5981
5982static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
5983 struct cfg80211_bss_selection *bss_select)
5984{
5985 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
5986 struct nlattr *nest;
5987 int err;
5988 bool found = false;
5989 int i;
5990
5991 /* only process one nested attribute */
5992 nest = nla_data(nla);
5993 if (!nla_ok(nest, nla_len(nest)))
5994 return -EINVAL;
5995
5996 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
5997 nla_len(nest), nl80211_bss_select_policy);
5998 if (err)
5999 return err;
6000
6001 /* only one attribute may be given */
6002 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6003 if (attr[i]) {
6004 if (found)
6005 return -EINVAL;
6006 found = true;
6007 }
6008 }
6009
6010 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6011
6012 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6013 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6014
6015 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6016 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6017 bss_select->param.band_pref =
6018 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6019 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6020 return -EINVAL;
6021 }
6022
6023 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6024 struct nl80211_bss_select_rssi_adjust *adj_param;
6025
6026 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6027 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6028 bss_select->param.adjust.band = adj_param->band;
6029 bss_select->param.adjust.delta = adj_param->delta;
6030 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6031 return -EINVAL;
6032 }
6033
6034 /* user-space did not provide behaviour attribute */
6035 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6036 return -EINVAL;
6037
6038 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6039 return -EINVAL;
6040
6041 return 0;
6042}
6043
ad2b26ab
JB		 6044static int nl80211_parse_random_mac(struct nlattr **attrs,
6045 u8 *mac_addr, u8 *mac_addr_mask)
6046{
6047 int i;
6048
6049 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6050 eth_zero_addr(mac_addr);
6051 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6052 mac_addr[0] = 0x2;
6053 mac_addr_mask[0] = 0x3;
6054
6055 return 0;
6056 }
6057
6058 /* need both or none */
6059 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6060 return -EINVAL;
6061
6062 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6063 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6064
6065 /* don't allow or configure an mcast address */
6066 if (!is_multicast_ether_addr(mac_addr_mask) ||
6067 is_multicast_ether_addr(mac_addr))
6068 return -EINVAL;
6069
6070 /*
6071 * allow users to pass a MAC address that has bits set outside
6072 * of the mask, but don't bother drivers with having to deal
6073 * with such bits
6074 */
6075 for (i = 0; i < ETH_ALEN; i++)
6076 mac_addr[i] &= mac_addr_mask[i];
6077
6078 return 0;
6079}
6080
2a519311
JB		 6081static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6082{
4c476991 6083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6084 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6085 struct cfg80211_scan_request *request;
2a519311
JB		 6086 struct nlattr *attr;
6087 struct wiphy *wiphy;
83f5e2cf 6088 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6089 size_t ie_len;
2a519311 6090
f4a11bb0
JB		 6091 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6092 return -EINVAL;
6093
79c97e97 6094 wiphy = &rdev->wiphy;
2a519311 6095
4c476991
JB		 6096 if (!rdev->ops->scan)
6097 return -EOPNOTSUPP;
2a519311 6098
f9d15d16 6099 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6100 err = -EBUSY;
6101 goto unlock;
6102 }
2a519311
JB		 6103
6104 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6105 n_channels = validate_scan_freqs(
6106 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6107 if (!n_channels) {
6108 err = -EINVAL;
6109 goto unlock;
6110 }
2a519311 6111 } else {
bdfbec2d 6112 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6113 }
6114
6115 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6116 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6117 n_ssids++;
6118
f9f47529
JB		 6119 if (n_ssids > wiphy->max_scan_ssids) {
6120 err = -EINVAL;
6121 goto unlock;
6122 }
2a519311 6123
70692ad2
JM		 6124 if (info->attrs[NL80211_ATTR_IE])
6125 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6126 else
6127 ie_len = 0;
6128
f9f47529
JB		 6129 if (ie_len > wiphy->max_scan_ie_len) {
6130 err = -EINVAL;
6131 goto unlock;
6132 }
18a83659 6133
2a519311 6134 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6135 + sizeof(*request->ssids) * n_ssids
6136 + sizeof(*request->channels) * n_channels
70692ad2 6137 + ie_len, GFP_KERNEL);
f9f47529
JB		 6138 if (!request) {
6139 err = -ENOMEM;
6140 goto unlock;
6141 }
2a519311 6142
2a519311 6143 if (n_ssids)
5ba63533 6144 request->ssids = (void *)&request->channels[n_channels];
2a519311 6145 request->n_ssids = n_ssids;
70692ad2 6146 if (ie_len) {
13874e4b 6147 if (n_ssids)
70692ad2
JM		 6148 request->ie = (void *)(request->ssids + n_ssids);
6149 else
6150 request->ie = (void *)(request->channels + n_channels);
6151 }
2a519311 6152
584991dc 6153 i = 0;
2a519311
JB		 6154 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6155 /* user specified, bail out if channel not found */
2a519311 6156 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6157 struct ieee80211_channel *chan;
6158
6159 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6160
6161 if (!chan) {
2a519311
JB		 6162 err = -EINVAL;
6163 goto out_free;
6164 }
584991dc
JB		 6165
6166 /* ignore disabled channels */
6167 if (chan->flags & IEEE80211_CHAN_DISABLED)
6168 continue;
6169
6170 request->channels[i] = chan;
2a519311
JB		 6171 i++;
6172 }
6173 } else {
57fbcce3 6174 enum nl80211_band band;
34850ab2 6175
2a519311 6176 /* all channels */
57fbcce3 6177 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6178 int j;
7a087e74 6179
2a519311
JB		 6180 if (!wiphy->bands[band])
6181 continue;
6182 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6183 struct ieee80211_channel *chan;
6184
6185 chan = &wiphy->bands[band]->channels[j];
6186
6187 if (chan->flags & IEEE80211_CHAN_DISABLED)
6188 continue;
6189
6190 request->channels[i] = chan;
2a519311
JB		 6191 i++;
6192 }
6193 }
6194 }
6195
584991dc
JB		 6196 if (!i) {
6197 err = -EINVAL;
6198 goto out_free;
6199 }
6200
6201 request->n_channels = i;
6202
2a519311 6203 i = 0;
13874e4b 6204 if (n_ssids) {
2a519311 6205 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6206 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6207 err = -EINVAL;
6208 goto out_free;
6209 }
57a27e1d 6210 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6211 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6212 i++;
6213 }
6214 }
6215
70692ad2
JM		 6216 if (info->attrs[NL80211_ATTR_IE]) {
6217 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6218 memcpy((void *)request->ie,
6219 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6220 request->ie_len);
6221 }
6222
57fbcce3 6223 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6224 if (wiphy->bands[i])
6225 request->rates[i] =
6226 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6227
6228 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6229 nla_for_each_nested(attr,
6230 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6231 tmp) {
57fbcce3 6232 enum nl80211_band band = nla_type(attr);
34850ab2 6233
57fbcce3 6234 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6235 err = -EINVAL;
6236 goto out_free;
6237 }
1b09cd82
FF		 6238
6239 if (!wiphy->bands[band])
6240 continue;
6241
34850ab2
JB		 6242 err = ieee80211_get_ratemask(wiphy->bands[band],
6243 nla_data(attr),
6244 nla_len(attr),
6245 &request->rates[band]);
6246 if (err)
6247 goto out_free;
6248 }
6249 }
6250
1d76250b
AS		 6251 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6252 if (!wiphy_ext_feature_isset(wiphy,
6253 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6254 err = -EOPNOTSUPP;
6255 goto out_free;
6256 }
6257
6258 request->duration =
6259 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6260 request->duration_mandatory =
6261 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6262 }
6263
46856bbf 6264 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6265 request->flags = nla_get_u32(
6266 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6267 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6268 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6269 err = -EOPNOTSUPP;
6270 goto out_free;
6271 }
ad2b26ab
JB		 6272
6273 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6274 if (!(wiphy->features &
6275 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6276 err = -EOPNOTSUPP;
6277 goto out_free;
6278 }
6279
6280 if (wdev->current_bss) {
6281 err = -EOPNOTSUPP;
6282 goto out_free;
6283 }
6284
6285 err = nl80211_parse_random_mac(info->attrs,
6286 request->mac_addr,
6287 request->mac_addr_mask);
6288 if (err)
6289 goto out_free;
6290 }
46856bbf 6291 }
ed473771 6292
e9f935e3
RM		 6293 request->no_cck =
6294 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6295
818965d3
JM		 6296 if (info->attrs[NL80211_ATTR_MAC])
6297 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6298 ETH_ALEN);
6299 else
6300 eth_broadcast_addr(request->bssid);
6301
fd014284 6302 request->wdev = wdev;
79c97e97 6303 request->wiphy = &rdev->wiphy;
15d6030b 6304 request->scan_start = jiffies;
2a519311 6305
79c97e97 6306 rdev->scan_req = request;
e35e4d28 6307 err = rdev_scan(rdev, request);
2a519311 6308
463d0183 6309 if (!err) {
fd014284
JB		 6310 nl80211_send_scan_start(rdev, wdev);
6311 if (wdev->netdev)
6312 dev_hold(wdev->netdev);
4c476991 6313 } else {
2a519311 6314 out_free:
79c97e97 6315 rdev->scan_req = NULL;
2a519311
JB		 6316 kfree(request);
6317 }
3b85875a 6318
f9f47529 6319 unlock:
2a519311
JB		 6320 return err;
6321}
6322
91d3ab46
VK		 6323static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6324{
6325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6326 struct wireless_dev *wdev = info->user_ptr[1];
6327
6328 if (!rdev->ops->abort_scan)
6329 return -EOPNOTSUPP;
6330
6331 if (rdev->scan_msg)
6332 return 0;
6333
6334 if (!rdev->scan_req)
6335 return -ENOENT;
6336
6337 rdev_abort_scan(rdev, wdev);
6338 return 0;
6339}
6340
3b06d277
AS		 6341static int
6342nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6343 struct cfg80211_sched_scan_request *request,
6344 struct nlattr **attrs)
6345{
6346 int tmp, err, i = 0;
6347 struct nlattr *attr;
6348
6349 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6350 u32 interval;
6351
6352 /*
6353 * If scan plans are not specified,
6354 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6355 * case one scan plan will be set with the specified scan
6356 * interval and infinite number of iterations.
6357 */
6358 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6359 return -EINVAL;
6360
6361 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6362 if (!interval)
6363 return -EINVAL;
6364
6365 request->scan_plans[0].interval =
6366 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6367 if (!request->scan_plans[0].interval)
6368 return -EINVAL;
6369
6370 if (request->scan_plans[0].interval >
6371 wiphy->max_sched_scan_plan_interval)
6372 request->scan_plans[0].interval =
6373 wiphy->max_sched_scan_plan_interval;
6374
6375 return 0;
6376 }
6377
6378 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6379 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6380
6381 if (WARN_ON(i >= n_plans))
6382 return -EINVAL;
6383
6384 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6385 nla_data(attr), nla_len(attr),
6386 nl80211_plan_policy);
6387 if (err)
6388 return err;
6389
6390 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6391 return -EINVAL;
6392
6393 request->scan_plans[i].interval =
6394 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6395 if (!request->scan_plans[i].interval ||
6396 request->scan_plans[i].interval >
6397 wiphy->max_sched_scan_plan_interval)
6398 return -EINVAL;
6399
6400 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6401 request->scan_plans[i].iterations =
6402 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6403 if (!request->scan_plans[i].iterations ||
6404 (request->scan_plans[i].iterations >
6405 wiphy->max_sched_scan_plan_iterations))
6406 return -EINVAL;
6407 } else if (i < n_plans - 1) {
6408 /*
6409 * All scan plans but the last one must specify
6410 * a finite number of iterations
6411 */
6412 return -EINVAL;
6413 }
6414
6415 i++;
6416 }
6417
6418 /*
6419 * The last scan plan must not specify the number of
6420 * iterations, it is supposed to run infinitely
6421 */
6422 if (request->scan_plans[n_plans - 1].iterations)
6423 return -EINVAL;
6424
6425 return 0;
6426}
6427
256da02d 6428static struct cfg80211_sched_scan_request *
ad2b26ab 6429nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6430 struct nlattr **attrs)
807f8a8c
LC		 6431{
6432 struct cfg80211_sched_scan_request *request;
807f8a8c 6433 struct nlattr *attr;
3b06d277 6434 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6435 enum nl80211_band band;
807f8a8c 6436 size_t ie_len;
a1f1c21c 6437 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6438 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6439
256da02d
LC		 6440 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6441 return ERR_PTR(-EINVAL);
807f8a8c 6442
256da02d 6443 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6444 n_channels = validate_scan_freqs(
256da02d 6445 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6446 if (!n_channels)
256da02d 6447 return ERR_PTR(-EINVAL);
807f8a8c 6448 } else {
bdfbec2d 6449 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6450 }
6451
256da02d
LC		 6452 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6453 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6454 tmp)
6455 n_ssids++;
6456
93b6aa69 6457 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6458 return ERR_PTR(-EINVAL);
807f8a8c 6459
ea73cbce
JB		 6460 /*
6461 * First, count the number of 'real' matchsets. Due to an issue with
6462 * the old implementation, matchsets containing only the RSSI attribute
6463 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6464 * RSSI for all matchsets, rather than their own matchset for reporting
6465 * all APs with a strong RSSI. This is needed to be compatible with
6466 * older userspace that treated a matchset with only the RSSI as the
6467 * global RSSI for all other matchsets - if there are other matchsets.
6468 */
256da02d 6469 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6470 nla_for_each_nested(attr,
256da02d 6471 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6472 tmp) {
6473 struct nlattr *rssi;
6474
6475 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6476 nla_data(attr), nla_len(attr),
6477 nl80211_match_policy);
6478 if (err)
256da02d 6479 return ERR_PTR(err);
ea73cbce
JB		 6480 /* add other standalone attributes here */
6481 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6482 n_match_sets++;
6483 continue;
6484 }
6485 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6486 if (rssi)
6487 default_match_rssi = nla_get_s32(rssi);
6488 }
6489 }
6490
6491 /* However, if there's no other matchset, add the RSSI one */
6492 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6493 n_match_sets = 1;
a1f1c21c
LC		 6494
6495 if (n_match_sets > wiphy->max_match_sets)
256da02d 6496 return ERR_PTR(-EINVAL);
a1f1c21c 6497
256da02d
LC		 6498 if (attrs[NL80211_ATTR_IE])
6499 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6500 else
6501 ie_len = 0;
6502
5a865bad 6503 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6504 return ERR_PTR(-EINVAL);
c10841ca 6505
3b06d277
AS		 6506 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6507 /*
6508 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6509 * each scan plan already specifies its own interval
6510 */
6511 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6512 return ERR_PTR(-EINVAL);
6513
6514 nla_for_each_nested(attr,
6515 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6516 n_plans++;
6517 } else {
6518 /*
6519 * The scan interval attribute is kept for backward
6520 * compatibility. If no scan plans are specified and sched scan
6521 * interval is specified, one scan plan will be set with this
6522 * scan interval and infinite number of iterations.
6523 */
6524 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6525 return ERR_PTR(-EINVAL);
6526
6527 n_plans = 1;
6528 }
6529
6530 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6531 return ERR_PTR(-EINVAL);
6532
807f8a8c 6533 request = kzalloc(sizeof(*request)
a2cd43c5 6534 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6535 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6536 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6537 + sizeof(*request->channels) * n_channels
807f8a8c 6538 + ie_len, GFP_KERNEL);
256da02d
LC		 6539 if (!request)
6540 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6541
6542 if (n_ssids)
6543 request->ssids = (void *)&request->channels[n_channels];
6544 request->n_ssids = n_ssids;
6545 if (ie_len) {
13874e4b 6546 if (n_ssids)
807f8a8c
LC		 6547 request->ie = (void *)(request->ssids + n_ssids);
6548 else
6549 request->ie = (void *)(request->channels + n_channels);
6550 }
6551
a1f1c21c
LC		 6552 if (n_match_sets) {
6553 if (request->ie)
6554 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6555 else if (n_ssids)
a1f1c21c
LC		 6556 request->match_sets =
6557 (void *)(request->ssids + n_ssids);
6558 else
6559 request->match_sets =
6560 (void *)(request->channels + n_channels);
6561 }
6562 request->n_match_sets = n_match_sets;
6563
3b06d277
AS		 6564 if (n_match_sets)
6565 request->scan_plans = (void *)(request->match_sets +
6566 n_match_sets);
6567 else if (request->ie)
6568 request->scan_plans = (void *)(request->ie + ie_len);
6569 else if (n_ssids)
6570 request->scan_plans = (void *)(request->ssids + n_ssids);
6571 else
6572 request->scan_plans = (void *)(request->channels + n_channels);
6573
6574 request->n_scan_plans = n_plans;
6575
807f8a8c 6576 i = 0;
256da02d 6577 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6578 /* user specified, bail out if channel not found */
6579 nla_for_each_nested(attr,
256da02d 6580 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6581 tmp) {
6582 struct ieee80211_channel *chan;
6583
6584 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6585
6586 if (!chan) {
6587 err = -EINVAL;
6588 goto out_free;
6589 }
6590
6591 /* ignore disabled channels */
6592 if (chan->flags & IEEE80211_CHAN_DISABLED)
6593 continue;
6594
6595 request->channels[i] = chan;
6596 i++;
6597 }
6598 } else {
6599 /* all channels */
57fbcce3 6600 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 6601 int j;
7a087e74 6602
807f8a8c
LC		 6603 if (!wiphy->bands[band])
6604 continue;
6605 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6606 struct ieee80211_channel *chan;
6607
6608 chan = &wiphy->bands[band]->channels[j];
6609
6610 if (chan->flags & IEEE80211_CHAN_DISABLED)
6611 continue;
6612
6613 request->channels[i] = chan;
6614 i++;
6615 }
6616 }
6617 }
6618
6619 if (!i) {
6620 err = -EINVAL;
6621 goto out_free;
6622 }
6623
6624 request->n_channels = i;
6625
6626 i = 0;
13874e4b 6627 if (n_ssids) {
256da02d 6628 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6629 tmp) {
57a27e1d 6630 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6631 err = -EINVAL;
6632 goto out_free;
6633 }
57a27e1d 6634 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6635 memcpy(request->ssids[i].ssid, nla_data(attr),
6636 nla_len(attr));
807f8a8c
LC		 6637 i++;
6638 }
6639 }
6640
a1f1c21c 6641 i = 0;
256da02d 6642 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6643 nla_for_each_nested(attr,
256da02d 6644 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6645 tmp) {
88e920b4 6646 struct nlattr *ssid, *rssi;
a1f1c21c 6647
ae811e21
JB		 6648 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6649 nla_data(attr), nla_len(attr),
6650 nl80211_match_policy);
6651 if (err)
6652 goto out_free;
4a4ab0d7 6653 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6654 if (ssid) {
ea73cbce
JB		 6655 if (WARN_ON(i >= n_match_sets)) {
6656 /* this indicates a programming error,
6657 * the loop above should have verified
6658 * things properly
6659 */
6660 err = -EINVAL;
6661 goto out_free;
6662 }
6663
a1f1c21c
LC		 6664 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6665 err = -EINVAL;
6666 goto out_free;
6667 }
6668 memcpy(request->match_sets[i].ssid.ssid,
6669 nla_data(ssid), nla_len(ssid));
6670 request->match_sets[i].ssid.ssid_len =
6671 nla_len(ssid);
56ab364f 6672 /* special attribute - old implementation w/a */
ea73cbce
JB		 6673 request->match_sets[i].rssi_thold =
6674 default_match_rssi;
6675 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6676 if (rssi)
6677 request->match_sets[i].rssi_thold =
6678 nla_get_s32(rssi);
a1f1c21c
LC		 6679 }
6680 i++;
6681 }
ea73cbce
JB		 6682
6683 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6684 if (i == 0 && n_match_sets)
ea73cbce
JB		 6685 request->match_sets[0].rssi_thold = default_match_rssi;
6686
6687 request->min_rssi_thold = INT_MAX;
6688 for (i = 0; i < n_match_sets; i++)
6689 request->min_rssi_thold =
6690 min(request->match_sets[i].rssi_thold,
6691 request->min_rssi_thold);
6692 } else {
6693 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6694 }
6695
9900e484
JB		 6696 if (ie_len) {
6697 request->ie_len = ie_len;
807f8a8c 6698 memcpy((void *)request->ie,
256da02d 6699 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6700 request->ie_len);
6701 }
6702
256da02d 6703 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6704 request->flags = nla_get_u32(
256da02d 6705 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6706 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6707 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6708 err = -EOPNOTSUPP;
6709 goto out_free;
6710 }
ad2b26ab
JB		 6711
6712 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6713 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6714
6715 if (!wdev) /* must be net-detect */
6716 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6717
6718 if (!(wiphy->features & flg)) {
6719 err = -EOPNOTSUPP;
6720 goto out_free;
6721 }
6722
6723 if (wdev && wdev->current_bss) {
6724 err = -EOPNOTSUPP;
6725 goto out_free;
6726 }
6727
6728 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6729 request->mac_addr_mask);
6730 if (err)
6731 goto out_free;
6732 }
46856bbf 6733 }
ed473771 6734
9c748934
LC		 6735 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6736 request->delay =
6737 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6738
3b06d277
AS		 6739 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6740 if (err)
6741 goto out_free;
6742
15d6030b 6743 request->scan_start = jiffies;
807f8a8c 6744
256da02d 6745 return request;
807f8a8c
LC		 6746
6747out_free:
6748 kfree(request);
256da02d
LC		 6749 return ERR_PTR(err);
6750}
6751
6752static int nl80211_start_sched_scan(struct sk_buff *skb,
6753 struct genl_info *info)
6754{
6755 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6756 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6757 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6758 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6759 int err;
6760
6761 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6762 !rdev->ops->sched_scan_start)
6763 return -EOPNOTSUPP;
6764
6765 if (rdev->sched_scan_req)
6766 return -EINPROGRESS;
6767
31a60ed1
JR		 6768 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6769 info->attrs);
6770
6771 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6772 if (err)
6773 goto out_err;
6774
31a60ed1 6775 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6776 if (err)
6777 goto out_free;
6778
31a60ed1
JR		 6779 sched_scan_req->dev = dev;
6780 sched_scan_req->wiphy = &rdev->wiphy;
6781
93a1e86c
JR		 6782 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6783 sched_scan_req->owner_nlportid = info->snd_portid;
6784
31a60ed1 6785 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6786
6787 nl80211_send_sched_scan(rdev, dev,
6788 NL80211_CMD_START_SCHED_SCAN);
6789 return 0;
6790
6791out_free:
31a60ed1 6792 kfree(sched_scan_req);
256da02d 6793out_err:
807f8a8c
LC		 6794 return err;
6795}
6796
6797static int nl80211_stop_sched_scan(struct sk_buff *skb,
6798 struct genl_info *info)
6799{
6800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6801
6802 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6803 !rdev->ops->sched_scan_stop)
6804 return -EOPNOTSUPP;
6805
5fe231e8 6806 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6807}
6808
04f39047
SW		 6809static int nl80211_start_radar_detection(struct sk_buff *skb,
6810 struct genl_info *info)
6811{
6812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6813 struct net_device *dev = info->user_ptr[1];
6814 struct wireless_dev *wdev = dev->ieee80211_ptr;
6815 struct cfg80211_chan_def chandef;
55f7435c 6816 enum nl80211_dfs_regions dfs_region;
31559f35 6817 unsigned int cac_time_ms;
04f39047
SW		 6818 int err;
6819
55f7435c
LR		 6820 dfs_region = reg_get_dfs_region(wdev->wiphy);
6821 if (dfs_region == NL80211_DFS_UNSET)
6822 return -EINVAL;
6823
04f39047
SW		 6824 err = nl80211_parse_chandef(rdev, info, &chandef);
6825 if (err)
6826 return err;
6827
ff311bc1
SW		 6828 if (netif_carrier_ok(dev))
6829 return -EBUSY;
6830
04f39047
SW		 6831 if (wdev->cac_started)
6832 return -EBUSY;
6833
2beb6dab 6834 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6835 wdev->iftype);
04f39047
SW		 6836 if (err < 0)
6837 return err;
6838
6839 if (err == 0)
6840 return -EINVAL;
6841
fe7c3a1f 6842 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6843 return -EINVAL;
6844
6845 if (!rdev->ops->start_radar_detection)
6846 return -EOPNOTSUPP;
6847
31559f35
JD		 6848 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6849 if (WARN_ON(!cac_time_ms))
6850 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6851
a1056b1b 6852 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6853 if (!err) {
9e0e2961 6854 wdev->chandef = chandef;
04f39047
SW		 6855 wdev->cac_started = true;
6856 wdev->cac_start_time = jiffies;
31559f35 6857 wdev->cac_time_ms = cac_time_ms;
04f39047 6858 }
04f39047
SW		 6859 return err;
6860}
6861
16ef1fe2
SW		 6862static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6863{
6864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6865 struct net_device *dev = info->user_ptr[1];
6866 struct wireless_dev *wdev = dev->ieee80211_ptr;
6867 struct cfg80211_csa_settings params;
6868 /* csa_attrs is defined static to avoid waste of stack size - this
6869 * function is called under RTNL lock, so this should not be a problem.
6870 */
6871 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6872 int err;
ee4bc9e7 6873 bool need_new_beacon = false;
9a774c78 6874 int len, i;
252e07ca 6875 u32 cs_count;
16ef1fe2
SW		 6876
6877 if (!rdev->ops->channel_switch ||
6878 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6879 return -EOPNOTSUPP;
6880
ee4bc9e7
SW		 6881 switch (dev->ieee80211_ptr->iftype) {
6882 case NL80211_IFTYPE_AP:
6883 case NL80211_IFTYPE_P2P_GO:
6884 need_new_beacon = true;
6885
6886 /* useless if AP is not running */
6887 if (!wdev->beacon_interval)
1ff79dfa 6888 return -ENOTCONN;
ee4bc9e7
SW		 6889 break;
6890 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6891 if (!wdev->ssid_len)
6892 return -ENOTCONN;
6893 break;
c6da674a 6894 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6895 if (!wdev->mesh_id_len)
6896 return -ENOTCONN;
ee4bc9e7
SW		 6897 break;
6898 default:
16ef1fe2 6899 return -EOPNOTSUPP;
ee4bc9e7 6900 }
16ef1fe2
SW		 6901
6902 memset(&params, 0, sizeof(params));
6903
6904 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6905 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6906 return -EINVAL;
6907
6908 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6909 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6910 return -EINVAL;
6911
252e07ca
LC		 6912 /* Even though the attribute is u32, the specification says
6913 * u8, so let's make sure we don't overflow.
6914 */
6915 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6916 if (cs_count > 255)
6917 return -EINVAL;
6918
6919 params.count = cs_count;
16ef1fe2 6920
ee4bc9e7
SW		 6921 if (!need_new_beacon)
6922 goto skip_beacons;
6923
16ef1fe2
SW		 6924 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6925 if (err)
6926 return err;
6927
6928 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6929 info->attrs[NL80211_ATTR_CSA_IES],
6930 nl80211_policy);
6931 if (err)
6932 return err;
6933
6934 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6935 if (err)
6936 return err;
6937
6938 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6939 return -EINVAL;
6940
9a774c78
AO		 6941 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6942 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6943 return -EINVAL;
6944
9a774c78
AO		 6945 params.n_counter_offsets_beacon = len / sizeof(u16);
6946 if (rdev->wiphy.max_num_csa_counters &&
6947 (params.n_counter_offsets_beacon >
6948 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6949 return -EINVAL;
6950
9a774c78
AO		 6951 params.counter_offsets_beacon =
6952 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6953
6954 /* sanity checks - counters should fit and be the same */
6955 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6956 u16 offset = params.counter_offsets_beacon[i];
6957
6958 if (offset >= params.beacon_csa.tail_len)
6959 return -EINVAL;
6960
6961 if (params.beacon_csa.tail[offset] != params.count)
6962 return -EINVAL;
6963 }
6964
16ef1fe2 6965 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6966 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6967 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6968 return -EINVAL;
6969
9a774c78
AO		 6970 params.n_counter_offsets_presp = len / sizeof(u16);
6971 if (rdev->wiphy.max_num_csa_counters &&
6972 (params.n_counter_offsets_beacon >
6973 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6974 return -EINVAL;
9a774c78
AO		 6975
6976 params.counter_offsets_presp =
6977 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6978
6979 /* sanity checks - counters should fit and be the same */
6980 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6981 u16 offset = params.counter_offsets_presp[i];
6982
6983 if (offset >= params.beacon_csa.probe_resp_len)
6984 return -EINVAL;
6985
6986 if (params.beacon_csa.probe_resp[offset] !=
6987 params.count)
6988 return -EINVAL;
6989 }
16ef1fe2
SW		 6990 }
6991
ee4bc9e7 6992skip_beacons:
16ef1fe2
SW		 6993 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6994 if (err)
6995 return err;
6996
923b352f
AN		 6997 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6998 wdev->iftype))
16ef1fe2
SW		 6999 return -EINVAL;
7000
2beb6dab
LC		 7001 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7002 &params.chandef,
7003 wdev->iftype);
7004 if (err < 0)
7005 return err;
7006
dcc6c2f5 7007 if (err > 0)
2beb6dab 7008 params.radar_required = true;
16ef1fe2 7009
16ef1fe2
SW		 7010 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7011 params.block_tx = true;
7012
c56589ed
SW		 7013 wdev_lock(wdev);
7014 err = rdev_channel_switch(rdev, dev, &params);
7015 wdev_unlock(wdev);
7016
7017 return err;
16ef1fe2
SW		 7018}
7019
9720bb3a
JB		 7020static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7021 u32 seq, int flags,
2a519311 7022 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7023 struct wireless_dev *wdev,
7024 struct cfg80211_internal_bss *intbss)
2a519311 7025{
48ab905d 7026 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7027 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7028 void *hdr;
7029 struct nlattr *bss;
48ab905d
JB		 7030
7031 ASSERT_WDEV_LOCK(wdev);
2a519311 7032
15e47304 7033 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7034 NL80211_CMD_NEW_SCAN_RESULTS);
7035 if (!hdr)
7036 return -1;
7037
9720bb3a
JB		 7038 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7039
97990a06
JB		 7040 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7041 goto nla_put_failure;
7042 if (wdev->netdev &&
9360ffd1
DM		 7043 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7044 goto nla_put_failure;
2dad624e
ND		 7045 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7046 NL80211_ATTR_PAD))
97990a06 7047 goto nla_put_failure;
2a519311
JB		 7048
7049 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7050 if (!bss)
7051 goto nla_put_failure;
9360ffd1 7052 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7053 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7054 goto nla_put_failure;
9caf0364
JB		 7055
7056 rcu_read_lock();
0e227084
JB		 7057 /* indicate whether we have probe response data or not */
7058 if (rcu_access_pointer(res->proberesp_ies) &&
7059 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7060 goto fail_unlock_rcu;
7061
7062 /* this pointer prefers to be pointed to probe response data
7063 * but is always valid
7064 */
9caf0364 7065 ies = rcu_dereference(res->ies);
8cef2c9d 7066 if (ies) {
2dad624e
ND		 7067 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7068 NL80211_BSS_PAD))
8cef2c9d 7069 goto fail_unlock_rcu;
8cef2c9d
JB		 7070 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7071 ies->len, ies->data))
7072 goto fail_unlock_rcu;
9caf0364 7073 }
0e227084
JB		 7074
7075 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7076 ies = rcu_dereference(res->beacon_ies);
0e227084 7077 if (ies && ies->from_beacon) {
2dad624e
ND		 7078 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7079 NL80211_BSS_PAD))
8cef2c9d
JB		 7080 goto fail_unlock_rcu;
7081 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7082 ies->len, ies->data))
7083 goto fail_unlock_rcu;
9caf0364
JB		 7084 }
7085 rcu_read_unlock();
7086
9360ffd1
DM		 7087 if (res->beacon_interval &&
7088 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7089 goto nla_put_failure;
7090 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7091 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7092 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7093 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7094 jiffies_to_msecs(jiffies - intbss->ts)))
7095 goto nla_put_failure;
2a519311 7096
1d76250b
AS		 7097 if (intbss->parent_tsf &&
7098 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7099 intbss->parent_tsf, NL80211_BSS_PAD) ||
7100 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7101 intbss->parent_bssid)))
7102 goto nla_put_failure;
7103
6e19bc4b 7104 if (intbss->ts_boottime &&
2dad624e
ND		 7105 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7106 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7107 goto nla_put_failure;
7108
77965c97 7109 switch (rdev->wiphy.signal_type) {
2a519311 7110 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7111 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7112 goto nla_put_failure;
2a519311
JB		 7113 break;
7114 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7115 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7116 goto nla_put_failure;
2a519311
JB		 7117 break;
7118 default:
7119 break;
7120 }
7121
48ab905d 7122 switch (wdev->iftype) {
074ac8df 7123 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7124 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7125 if (intbss == wdev->current_bss &&
7126 nla_put_u32(msg, NL80211_BSS_STATUS,
7127 NL80211_BSS_STATUS_ASSOCIATED))
7128 goto nla_put_failure;
48ab905d
JB		 7129 break;
7130 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7131 if (intbss == wdev->current_bss &&
7132 nla_put_u32(msg, NL80211_BSS_STATUS,
7133 NL80211_BSS_STATUS_IBSS_JOINED))
7134 goto nla_put_failure;
48ab905d
JB		 7135 break;
7136 default:
7137 break;
7138 }
7139
2a519311
JB		 7140 nla_nest_end(msg, bss);
7141
053c095a
JB		 7142 genlmsg_end(msg, hdr);
7143 return 0;
2a519311 7144
8cef2c9d
JB		 7145 fail_unlock_rcu:
7146 rcu_read_unlock();
2a519311
JB		 7147 nla_put_failure:
7148 genlmsg_cancel(msg, hdr);
7149 return -EMSGSIZE;
7150}
7151
97990a06 7152static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7153{
48ab905d 7154 struct cfg80211_registered_device *rdev;
2a519311 7155 struct cfg80211_internal_bss *scan;
48ab905d 7156 struct wireless_dev *wdev;
97990a06 7157 int start = cb->args[2], idx = 0;
2a519311
JB		 7158 int err;
7159
97990a06 7160 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7161 if (err)
7162 return err;
2a519311 7163
48ab905d
JB		 7164 wdev_lock(wdev);
7165 spin_lock_bh(&rdev->bss_lock);
7166 cfg80211_bss_expire(rdev);
7167
9720bb3a
JB		 7168 cb->seq = rdev->bss_generation;
7169
48ab905d 7170 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7171 if (++idx <= start)
7172 continue;
9720bb3a 7173 if (nl80211_send_bss(skb, cb,
2a519311 7174 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7175 rdev, wdev, scan) < 0) {
2a519311 7176 idx--;
67748893 7177 break;
2a519311
JB		 7178 }
7179 }
7180
48ab905d
JB		 7181 spin_unlock_bh(&rdev->bss_lock);
7182 wdev_unlock(wdev);
2a519311 7183
97990a06
JB		 7184 cb->args[2] = idx;
7185 nl80211_finish_wdev_dump(rdev);
2a519311 7186
67748893 7187 return skb->len;
2a519311
JB		 7188}
7189
15e47304 7190static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7191 int flags, struct net_device *dev,
7192 bool allow_radio_stats,
7193 struct survey_info *survey)
61fa713c
HS		 7194{
7195 void *hdr;
7196 struct nlattr *infoattr;
7197
11f78ac3
JB		 7198 /* skip radio stats if userspace didn't request them */
7199 if (!survey->channel && !allow_radio_stats)
7200 return 0;
7201
15e47304 7202 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7203 NL80211_CMD_NEW_SURVEY_RESULTS);
7204 if (!hdr)
7205 return -ENOMEM;
7206
9360ffd1
DM		 7207 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7208 goto nla_put_failure;
61fa713c
HS		 7209
7210 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7211 if (!infoattr)
7212 goto nla_put_failure;
7213
11f78ac3
JB		 7214 if (survey->channel &&
7215 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7216 survey->channel->center_freq))
7217 goto nla_put_failure;
7218
7219 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7220 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7221 goto nla_put_failure;
7222 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7223 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7224 goto nla_put_failure;
4ed20beb 7225 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7226 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7227 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7228 goto nla_put_failure;
4ed20beb 7229 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7230 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7231 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7232 goto nla_put_failure;
4ed20beb 7233 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7234 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7235 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7236 goto nla_put_failure;
4ed20beb 7237 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7238 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7239 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7240 goto nla_put_failure;
4ed20beb 7241 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7242 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7243 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7244 goto nla_put_failure;
052536ab 7245 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7246 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7247 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7248 goto nla_put_failure;
61fa713c
HS		 7249
7250 nla_nest_end(msg, infoattr);
7251
053c095a
JB		 7252 genlmsg_end(msg, hdr);
7253 return 0;
61fa713c
HS		 7254
7255 nla_put_failure:
7256 genlmsg_cancel(msg, hdr);
7257 return -EMSGSIZE;
7258}
7259
11f78ac3 7260static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7261{
7262 struct survey_info survey;
1b8ec87a 7263 struct cfg80211_registered_device *rdev;
97990a06
JB		 7264 struct wireless_dev *wdev;
7265 int survey_idx = cb->args[2];
61fa713c 7266 int res;
11f78ac3 7267 bool radio_stats;
61fa713c 7268
1b8ec87a 7269 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7270 if (res)
7271 return res;
61fa713c 7272
11f78ac3
JB		 7273 /* prepare_wdev_dump parsed the attributes */
7274 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7275
97990a06
JB		 7276 if (!wdev->netdev) {
7277 res = -EINVAL;
7278 goto out_err;
7279 }
7280
1b8ec87a 7281 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7282 res = -EOPNOTSUPP;
7283 goto out_err;
7284 }
7285
7286 while (1) {
1b8ec87a 7287 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7288 if (res == -ENOENT)
7289 break;
7290 if (res)
7291 goto out_err;
7292
11f78ac3
JB		 7293 /* don't send disabled channels, but do send non-channel data */
7294 if (survey.channel &&
7295 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7296 survey_idx++;
7297 continue;
7298 }
7299
61fa713c 7300 if (nl80211_send_survey(skb,
15e47304 7301 NETLINK_CB(cb->skb).portid,
61fa713c 7302 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7303 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7304 goto out;
7305 survey_idx++;
7306 }
7307
7308 out:
97990a06 7309 cb->args[2] = survey_idx;
61fa713c
HS		 7310 res = skb->len;
7311 out_err:
1b8ec87a 7312 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7313 return res;
7314}
7315
b23aa676
SO		 7316static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7317{
7318 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7319 NL80211_WPA_VERSION_2));
7320}
7321
636a5d36
JM		 7322static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7323{
4c476991
JB		 7324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7325 struct net_device *dev = info->user_ptr[1];
19957bb3 7326 struct ieee80211_channel *chan;
e39e5b5e
JM		 7327 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7328 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7329 enum nl80211_auth_type auth_type;
fffd0934 7330 struct key_parse key;
d5cdfacb 7331 bool local_state_change;
636a5d36 7332
f4a11bb0
JB		 7333 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7334 return -EINVAL;
7335
7336 if (!info->attrs[NL80211_ATTR_MAC])
7337 return -EINVAL;
7338
1778092e
JM		 7339 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7340 return -EINVAL;
7341
19957bb3
JB		 7342 if (!info->attrs[NL80211_ATTR_SSID])
7343 return -EINVAL;
7344
7345 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7346 return -EINVAL;
7347
fffd0934
JB		 7348 err = nl80211_parse_key(info, &key);
7349 if (err)
7350 return err;
7351
7352 if (key.idx >= 0) {
e31b8213
JB		 7353 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7354 return -EINVAL;
fffd0934
JB		 7355 if (!key.p.key || !key.p.key_len)
7356 return -EINVAL;
7357 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7358 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7359 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7360 key.p.key_len != WLAN_KEY_LEN_WEP104))
7361 return -EINVAL;
7362 if (key.idx > 4)
7363 return -EINVAL;
7364 } else {
7365 key.p.key_len = 0;
7366 key.p.key = NULL;
7367 }
7368
afea0b7a
JB		 7369 if (key.idx >= 0) {
7370 int i;
7371 bool ok = false;
7a087e74 7372
afea0b7a
JB		 7373 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7374 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7375 ok = true;
7376 break;
7377 }
7378 }
4c476991
JB		 7379 if (!ok)
7380 return -EINVAL;
afea0b7a
JB		 7381 }
7382
4c476991
JB		 7383 if (!rdev->ops->auth)
7384 return -EOPNOTSUPP;
636a5d36 7385
074ac8df 7386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7388 return -EOPNOTSUPP;
eec60b03 7389
19957bb3 7390 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7391 chan = nl80211_get_valid_chan(&rdev->wiphy,
7392 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7393 if (!chan)
4c476991 7394 return -EINVAL;
636a5d36 7395
19957bb3
JB		 7396 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7397 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7398
7399 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7400 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7401 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7402 }
7403
19957bb3 7404 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7405 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7406 return -EINVAL;
636a5d36 7407
e39e5b5e
JM		 7408 if (auth_type == NL80211_AUTHTYPE_SAE &&
7409 !info->attrs[NL80211_ATTR_SAE_DATA])
7410 return -EINVAL;
7411
7412 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7413 if (auth_type != NL80211_AUTHTYPE_SAE)
7414 return -EINVAL;
7415 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7416 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7417 /* need to include at least Auth Transaction and Status Code */
7418 if (sae_data_len < 4)
7419 return -EINVAL;
7420 }
7421
d5cdfacb
JM		 7422 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7423
95de817b
JB		 7424 /*
7425 * Since we no longer track auth state, ignore
7426 * requests to only change local state.
7427 */
7428 if (local_state_change)
7429 return 0;
7430
91bf9b26
JB		 7431 wdev_lock(dev->ieee80211_ptr);
7432 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7433 ssid, ssid_len, ie, ie_len,
7434 key.p.key, key.p.key_len, key.idx,
7435 sae_data, sae_data_len);
7436 wdev_unlock(dev->ieee80211_ptr);
7437 return err;
636a5d36
JM		 7438}
7439
c0692b8f
JB		 7440static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7441 struct genl_info *info,
3dc27d25
JB		 7442 struct cfg80211_crypto_settings *settings,
7443 int cipher_limit)
b23aa676 7444{
c0b2bbd8
JB		 7445 memset(settings, 0, sizeof(*settings));
7446
b23aa676
SO		 7447 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7448
c0692b8f
JB		 7449 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7450 u16 proto;
7a087e74 7451
c0692b8f
JB		 7452 proto = nla_get_u16(
7453 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7454 settings->control_port_ethertype = cpu_to_be16(proto);
7455 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7456 proto != ETH_P_PAE)
7457 return -EINVAL;
7458 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7459 settings->control_port_no_encrypt = true;
7460 } else
7461 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7462
b23aa676
SO		 7463 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7464 void *data;
7465 int len, i;
7466
7467 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7468 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7469 settings->n_ciphers_pairwise = len / sizeof(u32);
7470
7471 if (len % sizeof(u32))
7472 return -EINVAL;
7473
3dc27d25 7474 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7475 return -EINVAL;
7476
7477 memcpy(settings->ciphers_pairwise, data, len);
7478
7479 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7480 if (!cfg80211_supported_cipher_suite(
7481 &rdev->wiphy,
b23aa676
SO		 7482 settings->ciphers_pairwise[i]))
7483 return -EINVAL;
7484 }
7485
7486 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7487 settings->cipher_group =
7488 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7489 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7490 settings->cipher_group))
b23aa676
SO		 7491 return -EINVAL;
7492 }
7493
7494 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7495 settings->wpa_versions =
7496 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7497 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7498 return -EINVAL;
7499 }
7500
7501 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7502 void *data;
6d30240e 7503 int len;
b23aa676
SO		 7504
7505 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7506 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7507 settings->n_akm_suites = len / sizeof(u32);
7508
7509 if (len % sizeof(u32))
7510 return -EINVAL;
7511
1b9ca027
JM		 7512 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7513 return -EINVAL;
7514
b23aa676 7515 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7516 }
7517
7518 return 0;
7519}
7520
636a5d36
JM		 7521static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7522{
4c476991
JB		 7523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7524 struct net_device *dev = info->user_ptr[1];
f444de05 7525 struct ieee80211_channel *chan;
f62fab73
JB		 7526 struct cfg80211_assoc_request req = {};
7527 const u8 *bssid, *ssid;
7528 int err, ssid_len = 0;
636a5d36 7529
f4a11bb0
JB		 7530 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7531 return -EINVAL;
7532
7533 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7534 !info->attrs[NL80211_ATTR_SSID] ||
7535 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7536 return -EINVAL;
7537
4c476991
JB		 7538 if (!rdev->ops->assoc)
7539 return -EOPNOTSUPP;
636a5d36 7540
074ac8df 7541 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7542 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7543 return -EOPNOTSUPP;
eec60b03 7544
19957bb3 7545 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7546
664834de
JM		 7547 chan = nl80211_get_valid_chan(&rdev->wiphy,
7548 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7549 if (!chan)
4c476991 7550 return -EINVAL;
636a5d36 7551
19957bb3
JB		 7552 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7553 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7554
7555 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7556 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7557 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7558 }
7559
dc6382ce 7560 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7561 enum nl80211_mfp mfp =
dc6382ce 7562 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7563 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7564 req.use_mfp = true;
4c476991
JB		 7565 else if (mfp != NL80211_MFP_NO)
7566 return -EINVAL;
dc6382ce
JM		 7567 }
7568
3e5d7649 7569 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7570 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7571
7e7c8926 7572 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7573 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7574
7575 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7576 memcpy(&req.ht_capa_mask,
7577 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7578 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7579
7580 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7581 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7582 return -EINVAL;
f62fab73
JB		 7583 memcpy(&req.ht_capa,
7584 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7585 sizeof(req.ht_capa));
7e7c8926
BG		 7586 }
7587
ee2aca34 7588 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7589 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7590
7591 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7592 memcpy(&req.vht_capa_mask,
7593 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7594 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7595
7596 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7597 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7598 return -EINVAL;
f62fab73
JB		 7599 memcpy(&req.vht_capa,
7600 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7601 sizeof(req.vht_capa));
ee2aca34
JB		 7602 }
7603
bab5ab7d 7604 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7605 if (!((rdev->wiphy.features &
7606 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7607 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7608 !wiphy_ext_feature_isset(&rdev->wiphy,
7609 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7610 return -EINVAL;
7611 req.flags |= ASSOC_REQ_USE_RRM;
7612 }
7613
f62fab73 7614 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7615 if (!err) {
7616 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7617 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7618 ssid, ssid_len, &req);
91bf9b26
JB		 7619 wdev_unlock(dev->ieee80211_ptr);
7620 }
636a5d36 7621
636a5d36
JM		 7622 return err;
7623}
7624
7625static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7626{
4c476991
JB		 7627 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7628 struct net_device *dev = info->user_ptr[1];
19957bb3 7629 const u8 *ie = NULL, *bssid;
91bf9b26 7630 int ie_len = 0, err;
19957bb3 7631 u16 reason_code;
d5cdfacb 7632 bool local_state_change;
636a5d36 7633
f4a11bb0
JB		 7634 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7635 return -EINVAL;
7636
7637 if (!info->attrs[NL80211_ATTR_MAC])
7638 return -EINVAL;
7639
7640 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7641 return -EINVAL;
7642
4c476991
JB		 7643 if (!rdev->ops->deauth)
7644 return -EOPNOTSUPP;
636a5d36 7645
074ac8df 7646 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7647 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7648 return -EOPNOTSUPP;
eec60b03 7649
19957bb3 7650 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7651
19957bb3
JB		 7652 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7653 if (reason_code == 0) {
f4a11bb0 7654 /* Reason Code 0 is reserved */
4c476991 7655 return -EINVAL;
255e737e 7656 }
636a5d36
JM		 7657
7658 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7659 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7660 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7661 }
7662
d5cdfacb
JM		 7663 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7664
91bf9b26
JB		 7665 wdev_lock(dev->ieee80211_ptr);
7666 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7667 local_state_change);
7668 wdev_unlock(dev->ieee80211_ptr);
7669 return err;
636a5d36
JM		 7670}
7671
7672static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7673{
4c476991
JB		 7674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7675 struct net_device *dev = info->user_ptr[1];
19957bb3 7676 const u8 *ie = NULL, *bssid;
91bf9b26 7677 int ie_len = 0, err;
19957bb3 7678 u16 reason_code;
d5cdfacb 7679 bool local_state_change;
636a5d36 7680
f4a11bb0
JB		 7681 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7682 return -EINVAL;
7683
7684 if (!info->attrs[NL80211_ATTR_MAC])
7685 return -EINVAL;
7686
7687 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7688 return -EINVAL;
7689
4c476991
JB		 7690 if (!rdev->ops->disassoc)
7691 return -EOPNOTSUPP;
636a5d36 7692
074ac8df 7693 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7694 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7695 return -EOPNOTSUPP;
eec60b03 7696
19957bb3 7697 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7698
19957bb3
JB		 7699 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7700 if (reason_code == 0) {
f4a11bb0 7701 /* Reason Code 0 is reserved */
4c476991 7702 return -EINVAL;
255e737e 7703 }
636a5d36
JM		 7704
7705 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7706 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7707 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7708 }
7709
d5cdfacb
JM		 7710 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7711
91bf9b26
JB		 7712 wdev_lock(dev->ieee80211_ptr);
7713 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7714 local_state_change);
7715 wdev_unlock(dev->ieee80211_ptr);
7716 return err;
636a5d36
JM		 7717}
7718
dd5b4cc7
FF		 7719static bool
7720nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 7721 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 7722 int rateval)
7723{
7724 struct wiphy *wiphy = &rdev->wiphy;
7725 bool found = false;
7726 int band, i;
7727
57fbcce3 7728 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 7729 struct ieee80211_supported_band *sband;
7730
7731 sband = wiphy->bands[band];
7732 if (!sband)
7733 continue;
7734
7735 for (i = 0; i < sband->n_bitrates; i++) {
7736 if (sband->bitrates[i].bitrate == rateval) {
7737 mcast_rate[band] = i + 1;
7738 found = true;
7739 break;
7740 }
7741 }
7742 }
7743
7744 return found;
7745}
7746
04a773ad
JB		 7747static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7748{
4c476991
JB		 7749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7750 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7751 struct cfg80211_ibss_params ibss;
7752 struct wiphy *wiphy;
fffd0934 7753 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7754 int err;
7755
8e30bc55
JB		 7756 memset(&ibss, 0, sizeof(ibss));
7757
04a773ad
JB		 7758 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7759 return -EINVAL;
7760
683b6d3b 7761 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7762 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7763 return -EINVAL;
7764
8e30bc55
JB		 7765 ibss.beacon_interval = 100;
7766
12d20fc9 7767 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 7768 ibss.beacon_interval =
7769 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9
PK		 7770
7771 err = cfg80211_validate_beacon_int(rdev, ibss.beacon_interval);
7772 if (err)
7773 return err;
8e30bc55 7774
4c476991
JB		 7775 if (!rdev->ops->join_ibss)
7776 return -EOPNOTSUPP;
04a773ad 7777
4c476991
JB		 7778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7779 return -EOPNOTSUPP;
04a773ad 7780
79c97e97 7781 wiphy = &rdev->wiphy;
04a773ad 7782
39193498 7783 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7784 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7785
7786 if (!is_valid_ether_addr(ibss.bssid))
7787 return -EINVAL;
7788 }
04a773ad
JB		 7789 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7790 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7791
7792 if (info->attrs[NL80211_ATTR_IE]) {
7793 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7794 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7795 }
7796
683b6d3b
JB		 7797 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7798 if (err)
7799 return err;
04a773ad 7800
174e0cd2
IP		 7801 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7802 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7803 return -EINVAL;
7804
2f301ab2 7805 switch (ibss.chandef.width) {
bf372645
SW		 7806 case NL80211_CHAN_WIDTH_5:
7807 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7808 case NL80211_CHAN_WIDTH_20_NOHT:
7809 break;
7810 case NL80211_CHAN_WIDTH_20:
7811 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7812 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7813 return -EINVAL;
7814 break;
7815 case NL80211_CHAN_WIDTH_80:
7816 case NL80211_CHAN_WIDTH_80P80:
7817 case NL80211_CHAN_WIDTH_160:
7818 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7819 return -EINVAL;
7820 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7821 NL80211_EXT_FEATURE_VHT_IBSS))
7822 return -EINVAL;
7823 break;
2f301ab2 7824 default:
c04d6150 7825 return -EINVAL;
2f301ab2 7826 }
db9c64cf 7827
04a773ad 7828 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7829 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7830
fbd2c8dc
TP		 7831 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7832 u8 *rates =
7833 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7834 int n_rates =
7835 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7836 struct ieee80211_supported_band *sband =
683b6d3b 7837 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7838
34850ab2
JB		 7839 err = ieee80211_get_ratemask(sband, rates, n_rates,
7840 &ibss.basic_rates);
7841 if (err)
7842 return err;
fbd2c8dc 7843 }
dd5b4cc7 7844
803768f5
SW		 7845 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7846 memcpy(&ibss.ht_capa_mask,
7847 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7848 sizeof(ibss.ht_capa_mask));
7849
7850 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7851 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7852 return -EINVAL;
7853 memcpy(&ibss.ht_capa,
7854 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7855 sizeof(ibss.ht_capa));
7856 }
7857
dd5b4cc7
FF		 7858 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7859 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7860 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7861 return -EINVAL;
fbd2c8dc 7862
4c476991 7863 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7864 bool no_ht = false;
7865
4c476991 7866 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7867 info->attrs[NL80211_ATTR_KEYS],
7868 &no_ht);
4c476991
JB		 7869 if (IS_ERR(connkeys))
7870 return PTR_ERR(connkeys);
de7044ee 7871
3d9d1d66
JB		 7872 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7873 no_ht) {
5e950a78 7874 kzfree(connkeys);
de7044ee
SM		 7875 return -EINVAL;
7876 }
4c476991 7877 }
04a773ad 7878
267335d6
AQ		 7879 ibss.control_port =
7880 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7881
5336fa88
SW		 7882 ibss.userspace_handles_dfs =
7883 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7884
4c476991 7885 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7886 if (err)
b47f610b 7887 kzfree(connkeys);
04a773ad
JB		 7888 return err;
7889}
7890
7891static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7892{
4c476991
JB		 7893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7894 struct net_device *dev = info->user_ptr[1];
04a773ad 7895
4c476991
JB		 7896 if (!rdev->ops->leave_ibss)
7897 return -EOPNOTSUPP;
04a773ad 7898
4c476991
JB		 7899 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7900 return -EOPNOTSUPP;
04a773ad 7901
4c476991 7902 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7903}
7904
f4e583c8
AQ		 7905static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7906{
7907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7908 struct net_device *dev = info->user_ptr[1];
57fbcce3 7909 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 7910 u32 nla_rate;
7911 int err;
7912
7913 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7914 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7915 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7916 return -EOPNOTSUPP;
7917
7918 if (!rdev->ops->set_mcast_rate)
7919 return -EOPNOTSUPP;
7920
7921 memset(mcast_rate, 0, sizeof(mcast_rate));
7922
7923 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7924 return -EINVAL;
7925
7926 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7927 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7928 return -EINVAL;
7929
a1056b1b 7930 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7931
7932 return err;
7933}
7934
ad7e718c
JB		 7935static struct sk_buff *
7936__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7937 struct wireless_dev *wdev, int approxlen,
7938 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7939 enum nl80211_attrs attr,
7940 const struct nl80211_vendor_cmd_info *info,
7941 gfp_t gfp)
ad7e718c
JB		 7942{
7943 struct sk_buff *skb;
7944 void *hdr;
7945 struct nlattr *data;
7946
7947 skb = nlmsg_new(approxlen + 100, gfp);
7948 if (!skb)
7949 return NULL;
7950
7951 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7952 if (!hdr) {
7953 kfree_skb(skb);
7954 return NULL;
7955 }
7956
7957 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7958 goto nla_put_failure;
567ffc35
JB		 7959
7960 if (info) {
7961 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7962 info->vendor_id))
7963 goto nla_put_failure;
7964 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7965 info->subcmd))
7966 goto nla_put_failure;
7967 }
7968
6c09e791 7969 if (wdev) {
2dad624e
ND		 7970 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
7971 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 7972 goto nla_put_failure;
7973 if (wdev->netdev &&
7974 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7975 wdev->netdev->ifindex))
7976 goto nla_put_failure;
7977 }
7978
ad7e718c
JB		 7979 data = nla_nest_start(skb, attr);
7980
7981 ((void **)skb->cb)[0] = rdev;
7982 ((void **)skb->cb)[1] = hdr;
7983 ((void **)skb->cb)[2] = data;
7984
7985 return skb;
7986
7987 nla_put_failure:
7988 kfree_skb(skb);
7989 return NULL;
7990}
f4e583c8 7991
e03ad6ea 7992struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7993 struct wireless_dev *wdev,
e03ad6ea
JB		 7994 enum nl80211_commands cmd,
7995 enum nl80211_attrs attr,
7996 int vendor_event_idx,
7997 int approxlen, gfp_t gfp)
7998{
f26cbf40 7999 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8000 const struct nl80211_vendor_cmd_info *info;
8001
8002 switch (cmd) {
8003 case NL80211_CMD_TESTMODE:
8004 if (WARN_ON(vendor_event_idx != -1))
8005 return NULL;
8006 info = NULL;
8007 break;
8008 case NL80211_CMD_VENDOR:
8009 if (WARN_ON(vendor_event_idx < 0 ||
8010 vendor_event_idx >= wiphy->n_vendor_events))
8011 return NULL;
8012 info = &wiphy->vendor_events[vendor_event_idx];
8013 break;
8014 default:
8015 WARN_ON(1);
8016 return NULL;
8017 }
8018
6c09e791 8019 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8020 cmd, attr, info, gfp);
8021}
8022EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8023
8024void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8025{
8026 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8027 void *hdr = ((void **)skb->cb)[1];
8028 struct nlattr *data = ((void **)skb->cb)[2];
8029 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8030
bd8c78e7
JB		 8031 /* clear CB data for netlink core to own from now on */
8032 memset(skb->cb, 0, sizeof(skb->cb));
8033
e03ad6ea
JB		 8034 nla_nest_end(skb, data);
8035 genlmsg_end(skb, hdr);
8036
8037 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8038 mcgrp = NL80211_MCGRP_VENDOR;
8039
8040 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8041 mcgrp, gfp);
8042}
8043EXPORT_SYMBOL(__cfg80211_send_event_skb);
8044
aff89a9b 8045#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8046static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8047{
4c476991 8048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8049 struct wireless_dev *wdev =
8050 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8051 int err;
8052
fc73f11f
DS		 8053 if (!rdev->ops->testmode_cmd)
8054 return -EOPNOTSUPP;
8055
8056 if (IS_ERR(wdev)) {
8057 err = PTR_ERR(wdev);
8058 if (err != -EINVAL)
8059 return err;
8060 wdev = NULL;
8061 } else if (wdev->wiphy != &rdev->wiphy) {
8062 return -EINVAL;
8063 }
8064
aff89a9b
JB		 8065 if (!info->attrs[NL80211_ATTR_TESTDATA])
8066 return -EINVAL;
8067
ad7e718c 8068 rdev->cur_cmd_info = info;
fc73f11f 8069 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8070 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8071 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8072 rdev->cur_cmd_info = NULL;
aff89a9b 8073
aff89a9b
JB		 8074 return err;
8075}
8076
71063f0e
WYG		 8077static int nl80211_testmode_dump(struct sk_buff *skb,
8078 struct netlink_callback *cb)
8079{
00918d33 8080 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8081 int err;
8082 long phy_idx;
8083 void *data = NULL;
8084 int data_len = 0;
8085
5fe231e8
JB		 8086 rtnl_lock();
8087
71063f0e
WYG		 8088 if (cb->args[0]) {
8089 /*
8090 * 0 is a valid index, but not valid for args[0],
8091 * so we need to offset by 1.
8092 */
8093 phy_idx = cb->args[0] - 1;
8094 } else {
8095 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8096 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8097 nl80211_policy);
8098 if (err)
5fe231e8 8099 goto out_err;
00918d33 8100
2bd7e35d
JB		 8101 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8102 nl80211_fam.attrbuf);
8103 if (IS_ERR(rdev)) {
5fe231e8
JB		 8104 err = PTR_ERR(rdev);
8105 goto out_err;
00918d33 8106 }
2bd7e35d
JB		 8107 phy_idx = rdev->wiphy_idx;
8108 rdev = NULL;
2bd7e35d 8109
71063f0e
WYG		 8110 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8111 cb->args[1] =
8112 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8113 }
8114
8115 if (cb->args[1]) {
8116 data = nla_data((void *)cb->args[1]);
8117 data_len = nla_len((void *)cb->args[1]);
8118 }
8119
00918d33
JB		 8120 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8121 if (!rdev) {
5fe231e8
JB		 8122 err = -ENOENT;
8123 goto out_err;
71063f0e 8124 }
71063f0e 8125
00918d33 8126 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8127 err = -EOPNOTSUPP;
8128 goto out_err;
8129 }
8130
8131 while (1) {
15e47304 8132 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8133 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8134 NL80211_CMD_TESTMODE);
8135 struct nlattr *tmdata;
8136
cb35fba3
DC		 8137 if (!hdr)
8138 break;
8139
9360ffd1 8140 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8141 genlmsg_cancel(skb, hdr);
8142 break;
8143 }
8144
8145 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8146 if (!tmdata) {
8147 genlmsg_cancel(skb, hdr);
8148 break;
8149 }
e35e4d28 8150 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8151 nla_nest_end(skb, tmdata);
8152
8153 if (err == -ENOBUFS || err == -ENOENT) {
8154 genlmsg_cancel(skb, hdr);
8155 break;
8156 } else if (err) {
8157 genlmsg_cancel(skb, hdr);
8158 goto out_err;
8159 }
8160
8161 genlmsg_end(skb, hdr);
8162 }
8163
8164 err = skb->len;
8165 /* see above */
8166 cb->args[0] = phy_idx + 1;
8167 out_err:
5fe231e8 8168 rtnl_unlock();
71063f0e
WYG		 8169 return err;
8170}
aff89a9b
JB		 8171#endif
8172
b23aa676
SO		 8173static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8174{
4c476991
JB		 8175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8176 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8177 struct cfg80211_connect_params connect;
8178 struct wiphy *wiphy;
fffd0934 8179 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8180 int err;
8181
8182 memset(&connect, 0, sizeof(connect));
8183
8184 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8185 return -EINVAL;
8186
8187 if (!info->attrs[NL80211_ATTR_SSID] ||
8188 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8189 return -EINVAL;
8190
8191 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8192 connect.auth_type =
8193 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8194 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8195 NL80211_CMD_CONNECT))
b23aa676
SO		 8196 return -EINVAL;
8197 } else
8198 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8199
8200 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8201
c0692b8f 8202 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8203 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8204 if (err)
8205 return err;
b23aa676 8206
074ac8df 8207 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8209 return -EOPNOTSUPP;
b23aa676 8210
79c97e97 8211 wiphy = &rdev->wiphy;
b23aa676 8212
4486ea98
BS		 8213 connect.bg_scan_period = -1;
8214 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8215 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8216 connect.bg_scan_period =
8217 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8218 }
8219
b23aa676
SO		 8220 if (info->attrs[NL80211_ATTR_MAC])
8221 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8222 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8223 connect.bssid_hint =
8224 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8225 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8226 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8227
8228 if (info->attrs[NL80211_ATTR_IE]) {
8229 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8230 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8231 }
8232
cee00a95
JM		 8233 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8234 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8235 if (connect.mfp != NL80211_MFP_REQUIRED &&
8236 connect.mfp != NL80211_MFP_NO)
8237 return -EINVAL;
8238 } else {
8239 connect.mfp = NL80211_MFP_NO;
8240 }
8241
ba6fbacf
JM		 8242 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8243 connect.prev_bssid =
8244 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8245
b23aa676 8246 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8247 connect.channel = nl80211_get_valid_chan(
8248 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8249 if (!connect.channel)
1df4a510
JM		 8250 return -EINVAL;
8251 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8252 connect.channel_hint = nl80211_get_valid_chan(
8253 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8254 if (!connect.channel_hint)
4c476991 8255 return -EINVAL;
b23aa676
SO		 8256 }
8257
fffd0934
JB		 8258 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8259 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8260 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8261 if (IS_ERR(connkeys))
8262 return PTR_ERR(connkeys);
fffd0934
JB		 8263 }
8264
7e7c8926
BG		 8265 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8266 connect.flags |= ASSOC_REQ_DISABLE_HT;
8267
8268 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8269 memcpy(&connect.ht_capa_mask,
8270 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8271 sizeof(connect.ht_capa_mask));
8272
8273 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8274 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8275 kzfree(connkeys);
7e7c8926 8276 return -EINVAL;
b4e4f47e 8277 }
7e7c8926
BG		 8278 memcpy(&connect.ht_capa,
8279 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8280 sizeof(connect.ht_capa));
8281 }
8282
ee2aca34
JB		 8283 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8284 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8285
8286 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8287 memcpy(&connect.vht_capa_mask,
8288 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8289 sizeof(connect.vht_capa_mask));
8290
8291 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8292 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8293 kzfree(connkeys);
ee2aca34
JB		 8294 return -EINVAL;
8295 }
8296 memcpy(&connect.vht_capa,
8297 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8298 sizeof(connect.vht_capa));
8299 }
8300
bab5ab7d 8301 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8302 if (!((rdev->wiphy.features &
8303 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8304 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8305 !wiphy_ext_feature_isset(&rdev->wiphy,
8306 NL80211_EXT_FEATURE_RRM)) {
707554b4 8307 kzfree(connkeys);
bab5ab7d 8308 return -EINVAL;
707554b4 8309 }
bab5ab7d
AK		 8310 connect.flags |= ASSOC_REQ_USE_RRM;
8311 }
8312
34d50519 8313 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8314 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8315 kzfree(connkeys);
8316 return -EOPNOTSUPP;
8317 }
8318
38de03d2
AS		 8319 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8320 /* bss selection makes no sense if bssid is set */
8321 if (connect.bssid) {
8322 kzfree(connkeys);
8323 return -EINVAL;
8324 }
8325
8326 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8327 wiphy, &connect.bss_select);
8328 if (err) {
8329 kzfree(connkeys);
8330 return err;
8331 }
8332 }
8333
83739b03 8334 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8335 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8336 connect.prev_bssid);
83739b03 8337 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8338 if (err)
b47f610b 8339 kzfree(connkeys);
b23aa676
SO		 8340 return err;
8341}
8342
8343static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8344{
4c476991
JB		 8345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8346 struct net_device *dev = info->user_ptr[1];
b23aa676 8347 u16 reason;
83739b03 8348 int ret;
b23aa676
SO		 8349
8350 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8351 reason = WLAN_REASON_DEAUTH_LEAVING;
8352 else
8353 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8354
8355 if (reason == 0)
8356 return -EINVAL;
8357
074ac8df 8358 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8359 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8360 return -EOPNOTSUPP;
b23aa676 8361
83739b03
JB		 8362 wdev_lock(dev->ieee80211_ptr);
8363 ret = cfg80211_disconnect(rdev, dev, reason, true);
8364 wdev_unlock(dev->ieee80211_ptr);
8365 return ret;
b23aa676
SO		 8366}
8367
463d0183
JB		 8368static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8369{
4c476991 8370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8371 struct net *net;
8372 int err;
463d0183 8373
4b681c82
VK		 8374 if (info->attrs[NL80211_ATTR_PID]) {
8375 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8376
8377 net = get_net_ns_by_pid(pid);
8378 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8379 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8380
4b681c82
VK		 8381 net = get_net_ns_by_fd(fd);
8382 } else {
8383 return -EINVAL;
8384 }
463d0183 8385
4c476991
JB		 8386 if (IS_ERR(net))
8387 return PTR_ERR(net);
463d0183
JB		 8388
8389 err = 0;
8390
8391 /* check if anything to do */
4c476991
JB		 8392 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8393 err = cfg80211_switch_netns(rdev, net);
463d0183 8394
463d0183 8395 put_net(net);
463d0183
JB		 8396 return err;
8397}
8398
67fbb16b
SO		 8399static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8400{
4c476991 8401 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8402 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8403 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8404 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8405 struct cfg80211_pmksa pmksa;
8406
8407 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8408
8409 if (!info->attrs[NL80211_ATTR_MAC])
8410 return -EINVAL;
8411
8412 if (!info->attrs[NL80211_ATTR_PMKID])
8413 return -EINVAL;
8414
67fbb16b
SO		 8415 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8416 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8417
074ac8df 8418 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8419 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8420 return -EOPNOTSUPP;
67fbb16b
SO		 8421
8422 switch (info->genlhdr->cmd) {
8423 case NL80211_CMD_SET_PMKSA:
8424 rdev_ops = rdev->ops->set_pmksa;
8425 break;
8426 case NL80211_CMD_DEL_PMKSA:
8427 rdev_ops = rdev->ops->del_pmksa;
8428 break;
8429 default:
8430 WARN_ON(1);
8431 break;
8432 }
8433
4c476991
JB		 8434 if (!rdev_ops)
8435 return -EOPNOTSUPP;
67fbb16b 8436
4c476991 8437 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8438}
8439
8440static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8441{
4c476991
JB		 8442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8443 struct net_device *dev = info->user_ptr[1];
67fbb16b 8444
074ac8df 8445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8446 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8447 return -EOPNOTSUPP;
67fbb16b 8448
4c476991
JB		 8449 if (!rdev->ops->flush_pmksa)
8450 return -EOPNOTSUPP;
67fbb16b 8451
e35e4d28 8452 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8453}
8454
109086ce
AN		 8455static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8456{
8457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8458 struct net_device *dev = info->user_ptr[1];
8459 u8 action_code, dialog_token;
df942e7b 8460 u32 peer_capability = 0;
109086ce
AN		 8461 u16 status_code;
8462 u8 *peer;
31fa97c5 8463 bool initiator;
109086ce
AN		 8464
8465 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8466 !rdev->ops->tdls_mgmt)
8467 return -EOPNOTSUPP;
8468
8469 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8470 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8471 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8472 !info->attrs[NL80211_ATTR_IE] ||
8473 !info->attrs[NL80211_ATTR_MAC])
8474 return -EINVAL;
8475
8476 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8477 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8478 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8479 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8480 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8481 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8482 peer_capability =
8483 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8484
e35e4d28 8485 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8486 dialog_token, status_code, peer_capability,
31fa97c5 8487 initiator,
e35e4d28
HG		 8488 nla_data(info->attrs[NL80211_ATTR_IE]),
8489 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8490}
8491
8492static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8493{
8494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8495 struct net_device *dev = info->user_ptr[1];
8496 enum nl80211_tdls_operation operation;
8497 u8 *peer;
8498
8499 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8500 !rdev->ops->tdls_oper)
8501 return -EOPNOTSUPP;
8502
8503 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8504 !info->attrs[NL80211_ATTR_MAC])
8505 return -EINVAL;
8506
8507 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8508 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8509
e35e4d28 8510 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8511}
8512
9588bbd5
JM		 8513static int nl80211_remain_on_channel(struct sk_buff *skb,
8514 struct genl_info *info)
8515{
4c476991 8516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8517 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8518 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8519 struct sk_buff *msg;
8520 void *hdr;
8521 u64 cookie;
683b6d3b 8522 u32 duration;
9588bbd5
JM		 8523 int err;
8524
8525 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8526 !info->attrs[NL80211_ATTR_DURATION])
8527 return -EINVAL;
8528
8529 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8530
ebf348fc
JB		 8531 if (!rdev->ops->remain_on_channel ||
8532 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8533 return -EOPNOTSUPP;
8534
9588bbd5 8535 /*
ebf348fc
JB		 8536 * We should be on that channel for at least a minimum amount of
8537 * time (10ms) but no longer than the driver supports.
9588bbd5 8538 */
ebf348fc 8539 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8540 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8541 return -EINVAL;
8542
683b6d3b
JB		 8543 err = nl80211_parse_chandef(rdev, info, &chandef);
8544 if (err)
8545 return err;
9588bbd5
JM		 8546
8547 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8548 if (!msg)
8549 return -ENOMEM;
9588bbd5 8550
15e47304 8551 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8552 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8553 if (!hdr) {
8554 err = -ENOBUFS;
9588bbd5
JM		 8555 goto free_msg;
8556 }
8557
683b6d3b
JB		 8558 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8559 duration, &cookie);
9588bbd5
JM		 8560
8561 if (err)
8562 goto free_msg;
8563
2dad624e
ND		 8564 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8565 NL80211_ATTR_PAD))
9360ffd1 8566 goto nla_put_failure;
9588bbd5
JM		 8567
8568 genlmsg_end(msg, hdr);
4c476991
JB		 8569
8570 return genlmsg_reply(msg, info);
9588bbd5
JM		 8571
8572 nla_put_failure:
8573 err = -ENOBUFS;
8574 free_msg:
8575 nlmsg_free(msg);
9588bbd5
JM		 8576 return err;
8577}
8578
8579static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8580 struct genl_info *info)
8581{
4c476991 8582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8583 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8584 u64 cookie;
9588bbd5
JM		 8585
8586 if (!info->attrs[NL80211_ATTR_COOKIE])
8587 return -EINVAL;
8588
4c476991
JB		 8589 if (!rdev->ops->cancel_remain_on_channel)
8590 return -EOPNOTSUPP;
9588bbd5 8591
9588bbd5
JM		 8592 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8593
e35e4d28 8594 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8595}
8596
13ae75b1
JM		 8597static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8598 u8 *rates, u8 rates_len)
8599{
8600 u8 i;
8601 u32 mask = 0;
8602
8603 for (i = 0; i < rates_len; i++) {
8604 int rate = (rates[i] & 0x7f) * 5;
8605 int ridx;
7a087e74 8606
13ae75b1
JM		 8607 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8608 struct ieee80211_rate *srate =
8609 &sband->bitrates[ridx];
8610 if (rate == srate->bitrate) {
8611 mask |= 1 << ridx;
8612 break;
8613 }
8614 }
8615 if (ridx == sband->n_bitrates)
8616 return 0; /* rate not found */
8617 }
8618
8619 return mask;
8620}
8621
24db78c0
SW		 8622static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8623 u8 *rates, u8 rates_len,
8624 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8625{
8626 u8 i;
8627
8628 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8629
8630 for (i = 0; i < rates_len; i++) {
8631 int ridx, rbit;
8632
8633 ridx = rates[i] / 8;
8634 rbit = BIT(rates[i] % 8);
8635
8636 /* check validity */
910570b5 8637 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8638 return false;
8639
8640 /* check availability */
8641 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8642 mcs[ridx] |= rbit;
8643 else
8644 return false;
8645 }
8646
8647 return true;
8648}
8649
204e35a9
JD		 8650static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8651{
8652 u16 mcs_mask = 0;
8653
8654 switch (vht_mcs_map) {
8655 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8656 break;
8657 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8658 mcs_mask = 0x00FF;
8659 break;
8660 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8661 mcs_mask = 0x01FF;
8662 break;
8663 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8664 mcs_mask = 0x03FF;
8665 break;
8666 default:
8667 break;
8668 }
8669
8670 return mcs_mask;
8671}
8672
8673static void vht_build_mcs_mask(u16 vht_mcs_map,
8674 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8675{
8676 u8 nss;
8677
8678 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8679 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8680 vht_mcs_map >>= 2;
8681 }
8682}
8683
8684static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8685 struct nl80211_txrate_vht *txrate,
8686 u16 mcs[NL80211_VHT_NSS_MAX])
8687{
8688 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8689 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8690 u8 i;
8691
8692 if (!sband->vht_cap.vht_supported)
8693 return false;
8694
8695 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8696
8697 /* Build vht_mcs_mask from VHT capabilities */
8698 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8699
8700 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8701 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8702 mcs[i] = txrate->mcs[i];
8703 else
8704 return false;
8705 }
8706
8707 return true;
8708}
8709
b54452b0 8710static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8711 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8712 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8713 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8714 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8715 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8716 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8717};
8718
8719static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8720 struct genl_info *info)
8721{
8722 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8724 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8725 int rem, i;
8726 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8727 struct nlattr *tx_rates;
8728 struct ieee80211_supported_band *sband;
204e35a9 8729 u16 vht_tx_mcs_map;
13ae75b1 8730
4c476991
JB		 8731 if (!rdev->ops->set_bitrate_mask)
8732 return -EOPNOTSUPP;
13ae75b1
JM		 8733
8734 memset(&mask, 0, sizeof(mask));
8735 /* Default to all rates enabled */
57fbcce3 8736 for (i = 0; i < NUM_NL80211_BANDS; i++) {
13ae75b1 8737 sband = rdev->wiphy.bands[i];
7869303b
JD		 8738
8739 if (!sband)
8740 continue;
8741
8742 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8743 memcpy(mask.control[i].ht_mcs,
7869303b 8744 sband->ht_cap.mcs.rx_mask,
d1e33e65 8745 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8746
8747 if (!sband->vht_cap.vht_supported)
8748 continue;
8749
8750 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8751 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8752 }
8753
b9243ab0
JD		 8754 /* if no rates are given set it back to the defaults */
8755 if (!info->attrs[NL80211_ATTR_TX_RATES])
8756 goto out;
8757
13ae75b1
JM		 8758 /*
8759 * The nested attribute uses enum nl80211_band as the index. This maps
57fbcce3 8760 * directly to the enum nl80211_band values used in cfg80211.
13ae75b1 8761 */
24db78c0 8762 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8763 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
57fbcce3 8764 enum nl80211_band band = nla_type(tx_rates);
ae811e21
JB		 8765 int err;
8766
57fbcce3 8767 if (band < 0 || band >= NUM_NL80211_BANDS)
4c476991 8768 return -EINVAL;
13ae75b1 8769 sband = rdev->wiphy.bands[band];
4c476991
JB		 8770 if (sband == NULL)
8771 return -EINVAL;
ae811e21
JB		 8772 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8773 nla_len(tx_rates), nl80211_txattr_policy);
8774 if (err)
8775 return err;
13ae75b1
JM		 8776 if (tb[NL80211_TXRATE_LEGACY]) {
8777 mask.control[band].legacy = rateset_to_mask(
8778 sband,
8779 nla_data(tb[NL80211_TXRATE_LEGACY]),
8780 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8781 if ((mask.control[band].legacy == 0) &&
8782 nla_len(tb[NL80211_TXRATE_LEGACY]))
8783 return -EINVAL;
24db78c0 8784 }
d1e33e65 8785 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8786 if (!ht_rateset_to_mask(
8787 sband,
d1e33e65
JD		 8788 nla_data(tb[NL80211_TXRATE_HT]),
8789 nla_len(tb[NL80211_TXRATE_HT]),
8790 mask.control[band].ht_mcs))
24db78c0
SW		 8791 return -EINVAL;
8792 }
204e35a9
JD		 8793 if (tb[NL80211_TXRATE_VHT]) {
8794 if (!vht_set_mcs_mask(
8795 sband,
8796 nla_data(tb[NL80211_TXRATE_VHT]),
8797 mask.control[band].vht_mcs))
8798 return -EINVAL;
8799 }
0b9323f6
JD		 8800 if (tb[NL80211_TXRATE_GI]) {
8801 mask.control[band].gi =
8802 nla_get_u8(tb[NL80211_TXRATE_GI]);
8803 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8804 return -EINVAL;
8805 }
24db78c0
SW		 8806
8807 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8808 /* don't allow empty legacy rates if HT or VHT
8809 * are not even supported.
8810 */
8811 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8812 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8813 return -EINVAL;
8814
8815 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8816 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8817 goto out;
8818
8819 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8820 if (mask.control[band].vht_mcs[i])
8821 goto out;
24db78c0
SW		 8822
8823 /* legacy and mcs rates may not be both empty */
204e35a9 8824 return -EINVAL;
13ae75b1
JM		 8825 }
8826 }
8827
b9243ab0 8828out:
e35e4d28 8829 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8830}
8831
2e161f78 8832static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8833{
4c476991 8834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8835 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8836 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8837
8838 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8839 return -EINVAL;
8840
2e161f78
JB		 8841 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8842 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8843
71bbc994
JB		 8844 switch (wdev->iftype) {
8845 case NL80211_IFTYPE_STATION:
8846 case NL80211_IFTYPE_ADHOC:
8847 case NL80211_IFTYPE_P2P_CLIENT:
8848 case NL80211_IFTYPE_AP:
8849 case NL80211_IFTYPE_AP_VLAN:
8850 case NL80211_IFTYPE_MESH_POINT:
8851 case NL80211_IFTYPE_P2P_GO:
98104fde 8852 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8853 break;
8854 default:
4c476991 8855 return -EOPNOTSUPP;
71bbc994 8856 }
026331c4
JM		 8857
8858 /* not much point in registering if we can't reply */
4c476991
JB		 8859 if (!rdev->ops->mgmt_tx)
8860 return -EOPNOTSUPP;
026331c4 8861
15e47304 8862 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8863 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8864 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8865}
8866
2e161f78 8867static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8868{
4c476991 8869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8870 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8871 struct cfg80211_chan_def chandef;
026331c4 8872 int err;
d64d373f 8873 void *hdr = NULL;
026331c4 8874 u64 cookie;
e247bd90 8875 struct sk_buff *msg = NULL;
b176e629
AO		 8876 struct cfg80211_mgmt_tx_params params = {
8877 .dont_wait_for_ack =
8878 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8879 };
026331c4 8880
683b6d3b 8881 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8882 return -EINVAL;
8883
4c476991
JB		 8884 if (!rdev->ops->mgmt_tx)
8885 return -EOPNOTSUPP;
026331c4 8886
71bbc994 8887 switch (wdev->iftype) {
ea141b75
AQ		 8888 case NL80211_IFTYPE_P2P_DEVICE:
8889 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8890 return -EINVAL;
71bbc994
JB		 8891 case NL80211_IFTYPE_STATION:
8892 case NL80211_IFTYPE_ADHOC:
8893 case NL80211_IFTYPE_P2P_CLIENT:
8894 case NL80211_IFTYPE_AP:
8895 case NL80211_IFTYPE_AP_VLAN:
8896 case NL80211_IFTYPE_MESH_POINT:
8897 case NL80211_IFTYPE_P2P_GO:
8898 break;
8899 default:
4c476991 8900 return -EOPNOTSUPP;
71bbc994 8901 }
026331c4 8902
f7ca38df 8903 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8904 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8905 return -EINVAL;
b176e629 8906 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8907
8908 /*
8909 * We should wait on the channel for at least a minimum amount
8910 * of time (10ms) but no longer than the driver supports.
8911 */
b176e629
AO		 8912 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8913 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 8914 return -EINVAL;
f7ca38df
JB		 8915 }
8916
b176e629 8917 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8918
b176e629 8919 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8920 return -EINVAL;
8921
b176e629 8922 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8923
ea141b75
AQ		 8924 /* get the channel if any has been specified, otherwise pass NULL to
8925 * the driver. The latter will use the current one
8926 */
8927 chandef.chan = NULL;
8928 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8929 err = nl80211_parse_chandef(rdev, info, &chandef);
8930 if (err)
8931 return err;
8932 }
8933
b176e629 8934 if (!chandef.chan && params.offchan)
ea141b75 8935 return -EINVAL;
026331c4 8936
34d22ce2
AO		 8937 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8938 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8939
8940 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8941 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8942 int i;
8943
8944 if (len % sizeof(u16))
8945 return -EINVAL;
8946
8947 params.n_csa_offsets = len / sizeof(u16);
8948 params.csa_offsets =
8949 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8950
8951 /* check that all the offsets fit the frame */
8952 for (i = 0; i < params.n_csa_offsets; i++) {
8953 if (params.csa_offsets[i] >= params.len)
8954 return -EINVAL;
8955 }
8956 }
8957
b176e629 8958 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8959 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8960 if (!msg)
8961 return -ENOMEM;
026331c4 8962
15e47304 8963 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8964 NL80211_CMD_FRAME);
cb35fba3
DC		 8965 if (!hdr) {
8966 err = -ENOBUFS;
e247bd90
JB		 8967 goto free_msg;
8968 }
026331c4 8969 }
e247bd90 8970
b176e629
AO		 8971 params.chan = chandef.chan;
8972 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8973 if (err)
8974 goto free_msg;
8975
e247bd90 8976 if (msg) {
2dad624e
ND		 8977 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8978 NL80211_ATTR_PAD))
9360ffd1 8979 goto nla_put_failure;
026331c4 8980
e247bd90
JB		 8981 genlmsg_end(msg, hdr);
8982 return genlmsg_reply(msg, info);
8983 }
8984
8985 return 0;
026331c4
JM		 8986
8987 nla_put_failure:
8988 err = -ENOBUFS;
8989 free_msg:
8990 nlmsg_free(msg);
026331c4
JM		 8991 return err;
8992}
8993
f7ca38df
JB		 8994static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8995{
8996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8997 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8998 u64 cookie;
8999
9000 if (!info->attrs[NL80211_ATTR_COOKIE])
9001 return -EINVAL;
9002
9003 if (!rdev->ops->mgmt_tx_cancel_wait)
9004 return -EOPNOTSUPP;
9005
71bbc994
JB		 9006 switch (wdev->iftype) {
9007 case NL80211_IFTYPE_STATION:
9008 case NL80211_IFTYPE_ADHOC:
9009 case NL80211_IFTYPE_P2P_CLIENT:
9010 case NL80211_IFTYPE_AP:
9011 case NL80211_IFTYPE_AP_VLAN:
9012 case NL80211_IFTYPE_P2P_GO:
98104fde 9013 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 9014 break;
9015 default:
f7ca38df 9016 return -EOPNOTSUPP;
71bbc994 9017 }
f7ca38df
JB		 9018
9019 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9020
e35e4d28 9021 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9022}
9023
ffb9eb3d
KV		 9024static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9025{
4c476991 9026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9027 struct wireless_dev *wdev;
4c476991 9028 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9029 u8 ps_state;
9030 bool state;
9031 int err;
9032
4c476991
JB		 9033 if (!info->attrs[NL80211_ATTR_PS_STATE])
9034 return -EINVAL;
ffb9eb3d
KV		 9035
9036 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9037
4c476991
JB		 9038 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9039 return -EINVAL;
ffb9eb3d
KV		 9040
9041 wdev = dev->ieee80211_ptr;
9042
4c476991
JB		 9043 if (!rdev->ops->set_power_mgmt)
9044 return -EOPNOTSUPP;
ffb9eb3d
KV		 9045
9046 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9047
9048 if (state == wdev->ps)
4c476991 9049 return 0;
ffb9eb3d 9050
e35e4d28 9051 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9052 if (!err)
9053 wdev->ps = state;
ffb9eb3d
KV		 9054 return err;
9055}
9056
9057static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9058{
4c476991 9059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9060 enum nl80211_ps_state ps_state;
9061 struct wireless_dev *wdev;
4c476991 9062 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9063 struct sk_buff *msg;
9064 void *hdr;
9065 int err;
9066
ffb9eb3d
KV		 9067 wdev = dev->ieee80211_ptr;
9068
4c476991
JB		 9069 if (!rdev->ops->set_power_mgmt)
9070 return -EOPNOTSUPP;
ffb9eb3d
KV		 9071
9072 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9073 if (!msg)
9074 return -ENOMEM;
ffb9eb3d 9075
15e47304 9076 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9077 NL80211_CMD_GET_POWER_SAVE);
9078 if (!hdr) {
4c476991 9079 err = -ENOBUFS;
ffb9eb3d
KV		 9080 goto free_msg;
9081 }
9082
9083 if (wdev->ps)
9084 ps_state = NL80211_PS_ENABLED;
9085 else
9086 ps_state = NL80211_PS_DISABLED;
9087
9360ffd1
DM		 9088 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9089 goto nla_put_failure;
ffb9eb3d
KV		 9090
9091 genlmsg_end(msg, hdr);
4c476991 9092 return genlmsg_reply(msg, info);
ffb9eb3d 9093
4c476991 9094 nla_put_failure:
ffb9eb3d 9095 err = -ENOBUFS;
4c476991 9096 free_msg:
ffb9eb3d 9097 nlmsg_free(msg);
ffb9eb3d
KV		 9098 return err;
9099}
9100
94e860f1
JB		 9101static const struct nla_policy
9102nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9103 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9104 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9105 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9106 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9107 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9108 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9109};
9110
84f10708 9111static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9112 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9113{
9114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9115 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9116 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9117
d9d8b019 9118 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9119 return -EINVAL;
9120
84f10708
TP		 9121 if (!rdev->ops->set_cqm_txe_config)
9122 return -EOPNOTSUPP;
9123
9124 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9125 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9126 return -EOPNOTSUPP;
9127
e35e4d28 9128 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9129}
9130
d6dc1a38
JO		 9131static int nl80211_set_cqm_rssi(struct genl_info *info,
9132 s32 threshold, u32 hysteresis)
9133{
4c476991 9134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9135 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9136 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9137
9138 if (threshold > 0)
9139 return -EINVAL;
9140
1da5fcc8
JB		 9141 /* disabling - hysteresis should also be zero then */
9142 if (threshold == 0)
9143 hysteresis = 0;
d6dc1a38 9144
4c476991
JB		 9145 if (!rdev->ops->set_cqm_rssi_config)
9146 return -EOPNOTSUPP;
d6dc1a38 9147
074ac8df 9148 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9149 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9150 return -EOPNOTSUPP;
d6dc1a38 9151
e35e4d28 9152 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9153}
9154
9155static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9156{
9157 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9158 struct nlattr *cqm;
9159 int err;
9160
9161 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9162 if (!cqm)
9163 return -EINVAL;
d6dc1a38
JO		 9164
9165 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9166 nl80211_attr_cqm_policy);
9167 if (err)
1da5fcc8 9168 return err;
d6dc1a38
JO		 9169
9170 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9171 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9172 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9173 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9174
1da5fcc8
JB		 9175 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9176 }
9177
9178 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9179 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9180 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9181 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9182 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9183 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9184
9185 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9186 }
9187
9188 return -EINVAL;
d6dc1a38
JO		 9189}
9190
6e0bd6c3
RL		 9191static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9192{
9193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9194 struct net_device *dev = info->user_ptr[1];
9195 struct ocb_setup setup = {};
9196 int err;
9197
9198 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9199 if (err)
9200 return err;
9201
9202 return cfg80211_join_ocb(rdev, dev, &setup);
9203}
9204
9205static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9206{
9207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9208 struct net_device *dev = info->user_ptr[1];
9209
9210 return cfg80211_leave_ocb(rdev, dev);
9211}
9212
29cbe68c
JB		 9213static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9214{
9215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9216 struct net_device *dev = info->user_ptr[1];
9217 struct mesh_config cfg;
c80d545d 9218 struct mesh_setup setup;
29cbe68c
JB		 9219 int err;
9220
9221 /* start with default */
9222 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9223 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9224
24bdd9f4 9225 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9226 /* and parse parameters if given */
24bdd9f4 9227 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9228 if (err)
9229 return err;
9230 }
9231
9232 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9233 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9234 return -EINVAL;
9235
c80d545d
JC		 9236 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9237 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9238
4bb62344
CYY		 9239 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9240 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9241 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9242 return -EINVAL;
9243
9bdbf04d
MP		 9244 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9245 setup.beacon_interval =
9246 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9
PK		 9247
9248 err = cfg80211_validate_beacon_int(rdev, setup.beacon_interval);
9249 if (err)
9250 return err;
9bdbf04d
MP		 9251 }
9252
9253 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9254 setup.dtim_period =
9255 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9256 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9257 return -EINVAL;
9258 }
9259
c80d545d
JC		 9260 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9261 /* parse additional setup parameters if given */
9262 err = nl80211_parse_mesh_setup(info, &setup);
9263 if (err)
9264 return err;
9265 }
9266
d37bb18a
TP		 9267 if (setup.user_mpm)
9268 cfg.auto_open_plinks = false;
9269
cc1d2806 9270 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9271 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9272 if (err)
9273 return err;
cc1d2806
JB		 9274 } else {
9275 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9276 setup.chandef.chan = NULL;
cc1d2806
JB		 9277 }
9278
ffb3cf30
AN		 9279 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9280 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9281 int n_rates =
9282 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9283 struct ieee80211_supported_band *sband;
9284
9285 if (!setup.chandef.chan)
9286 return -EINVAL;
9287
9288 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9289
9290 err = ieee80211_get_ratemask(sband, rates, n_rates,
9291 &setup.basic_rates);
9292 if (err)
9293 return err;
9294 }
9295
c80d545d 9296 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9297}
9298
9299static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9300{
9301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9302 struct net_device *dev = info->user_ptr[1];
9303
9304 return cfg80211_leave_mesh(rdev, dev);
9305}
9306
dfb89c56 9307#ifdef CONFIG_PM
bb92d199
AK		 9308static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9309 struct cfg80211_registered_device *rdev)
9310{
6abb9cb9 9311 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9312 struct nlattr *nl_pats, *nl_pat;
9313 int i, pat_len;
9314
6abb9cb9 9315 if (!wowlan->n_patterns)
bb92d199
AK		 9316 return 0;
9317
9318 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9319 if (!nl_pats)
9320 return -ENOBUFS;
9321
6abb9cb9 9322 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9323 nl_pat = nla_nest_start(msg, i + 1);
9324 if (!nl_pat)
9325 return -ENOBUFS;
6abb9cb9 9326 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9327 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9328 wowlan->patterns[i].mask) ||
50ac6607
AK		 9329 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9330 wowlan->patterns[i].pattern) ||
9331 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9332 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9333 return -ENOBUFS;
9334 nla_nest_end(msg, nl_pat);
9335 }
9336 nla_nest_end(msg, nl_pats);
9337
9338 return 0;
9339}
9340
2a0e047e
JB		 9341static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9342 struct cfg80211_wowlan_tcp *tcp)
9343{
9344 struct nlattr *nl_tcp;
9345
9346 if (!tcp)
9347 return 0;
9348
9349 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9350 if (!nl_tcp)
9351 return -ENOBUFS;
9352
930345ea
JB		 9353 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9354 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9355 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9356 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9357 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9358 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9359 tcp->payload_len, tcp->payload) ||
9360 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9361 tcp->data_interval) ||
9362 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9363 tcp->wake_len, tcp->wake_data) ||
9364 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9365 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9366 return -ENOBUFS;
9367
9368 if (tcp->payload_seq.len &&
9369 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9370 sizeof(tcp->payload_seq), &tcp->payload_seq))
9371 return -ENOBUFS;
9372
9373 if (tcp->payload_tok.len &&
9374 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9375 sizeof(tcp->payload_tok) + tcp->tokens_size,
9376 &tcp->payload_tok))
9377 return -ENOBUFS;
9378
e248ad30
JB		 9379 nla_nest_end(msg, nl_tcp);
9380
2a0e047e
JB		 9381 return 0;
9382}
9383
75453ccb
LC		 9384static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9385 struct cfg80211_sched_scan_request *req)
9386{
3b06d277 9387 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9388 int i;
9389
9390 if (!req)
9391 return 0;
9392
9393 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9394 if (!nd)
9395 return -ENOBUFS;
9396
3b06d277
AS		 9397 if (req->n_scan_plans == 1 &&
9398 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9399 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9400 return -ENOBUFS;
9401
21fea567
LC		 9402 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9403 return -ENOBUFS;
9404
75453ccb
LC		 9405 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9406 if (!freqs)
9407 return -ENOBUFS;
9408
9409 for (i = 0; i < req->n_channels; i++)
9410 nla_put_u32(msg, i, req->channels[i]->center_freq);
9411
9412 nla_nest_end(msg, freqs);
9413
9414 if (req->n_match_sets) {
9415 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9416 for (i = 0; i < req->n_match_sets; i++) {
9417 match = nla_nest_start(msg, i);
9418 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9419 req->match_sets[i].ssid.ssid_len,
9420 req->match_sets[i].ssid.ssid);
9421 nla_nest_end(msg, match);
9422 }
9423 nla_nest_end(msg, matches);
9424 }
9425
3b06d277
AS		 9426 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9427 if (!scan_plans)
9428 return -ENOBUFS;
9429
9430 for (i = 0; i < req->n_scan_plans; i++) {
9431 scan_plan = nla_nest_start(msg, i + 1);
9432 if (!scan_plan ||
9433 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9434 req->scan_plans[i].interval) ||
9435 (req->scan_plans[i].iterations &&
9436 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9437 req->scan_plans[i].iterations)))
9438 return -ENOBUFS;
9439 nla_nest_end(msg, scan_plan);
9440 }
9441 nla_nest_end(msg, scan_plans);
9442
75453ccb
LC		 9443 nla_nest_end(msg, nd);
9444
9445 return 0;
9446}
9447
ff1b6e69
JB		 9448static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9449{
9450 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9451 struct sk_buff *msg;
9452 void *hdr;
2a0e047e 9453 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9454
964dc9e2 9455 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9456 return -EOPNOTSUPP;
9457
6abb9cb9 9458 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9459 /* adjust size to have room for all the data */
6abb9cb9
JB		 9460 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9461 rdev->wiphy.wowlan_config->tcp->payload_len +
9462 rdev->wiphy.wowlan_config->tcp->wake_len +
9463 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9464 }
9465
9466 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9467 if (!msg)
9468 return -ENOMEM;
9469
15e47304 9470 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9471 NL80211_CMD_GET_WOWLAN);
9472 if (!hdr)
9473 goto nla_put_failure;
9474
6abb9cb9 9475 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9476 struct nlattr *nl_wowlan;
9477
9478 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9479 if (!nl_wowlan)
9480 goto nla_put_failure;
9481
6abb9cb9 9482 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9483 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9484 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9485 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9486 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9487 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9488 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9489 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9490 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9491 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9492 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9493 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9494 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9495 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9496 goto nla_put_failure;
2a0e047e 9497
bb92d199
AK		 9498 if (nl80211_send_wowlan_patterns(msg, rdev))
9499 goto nla_put_failure;
2a0e047e 9500
6abb9cb9
JB		 9501 if (nl80211_send_wowlan_tcp(msg,
9502 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9503 goto nla_put_failure;
75453ccb
LC		 9504
9505 if (nl80211_send_wowlan_nd(
9506 msg,
9507 rdev->wiphy.wowlan_config->nd_config))
9508 goto nla_put_failure;
2a0e047e 9509
ff1b6e69
JB		 9510 nla_nest_end(msg, nl_wowlan);
9511 }
9512
9513 genlmsg_end(msg, hdr);
9514 return genlmsg_reply(msg, info);
9515
9516nla_put_failure:
9517 nlmsg_free(msg);
9518 return -ENOBUFS;
9519}
9520
2a0e047e
JB		 9521static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9522 struct nlattr *attr,
9523 struct cfg80211_wowlan *trig)
9524{
9525 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9526 struct cfg80211_wowlan_tcp *cfg;
9527 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9528 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9529 u32 size;
9530 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9531 int err, port;
9532
964dc9e2 9533 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9534 return -EINVAL;
9535
9536 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9537 nla_data(attr), nla_len(attr),
9538 nl80211_wowlan_tcp_policy);
9539 if (err)
9540 return err;
9541
9542 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9543 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9544 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9545 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9546 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9547 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9548 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9549 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9550 return -EINVAL;
9551
9552 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9553 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9554 return -EINVAL;
9555
9556 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9557 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9558 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9559 return -EINVAL;
9560
9561 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9562 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9563 return -EINVAL;
9564
9565 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9566 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9567 return -EINVAL;
9568
9569 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9570 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9571
9572 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9573 tokens_size = tokln - sizeof(*tok);
9574
9575 if (!tok->len || tokens_size % tok->len)
9576 return -EINVAL;
964dc9e2 9577 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9578 return -EINVAL;
964dc9e2 9579 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9580 return -EINVAL;
964dc9e2 9581 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9582 return -EINVAL;
964dc9e2 9583 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9584 return -EINVAL;
9585 if (tok->offset + tok->len > data_size)
9586 return -EINVAL;
9587 }
9588
9589 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9590 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9591 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9592 return -EINVAL;
9593 if (seq->len == 0 || seq->len > 4)
9594 return -EINVAL;
9595 if (seq->len + seq->offset > data_size)
9596 return -EINVAL;
9597 }
9598
9599 size = sizeof(*cfg);
9600 size += data_size;
9601 size += wake_size + wake_mask_size;
9602 size += tokens_size;
9603
9604 cfg = kzalloc(size, GFP_KERNEL);
9605 if (!cfg)
9606 return -ENOMEM;
67b61f6c
JB		 9607 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9608 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9609 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9610 ETH_ALEN);
9611 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9612 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9613 else
9614 port = 0;
9615#ifdef CONFIG_INET
9616 /* allocate a socket and port for it and use it */
9617 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9618 IPPROTO_TCP, &cfg->sock, 1);
9619 if (err) {
9620 kfree(cfg);
9621 return err;
9622 }
9623 if (inet_csk_get_port(cfg->sock->sk, port)) {
9624 sock_release(cfg->sock);
9625 kfree(cfg);
9626 return -EADDRINUSE;
9627 }
9628 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9629#else
9630 if (!port) {
9631 kfree(cfg);
9632 return -EINVAL;
9633 }
9634 cfg->src_port = port;
9635#endif
9636
9637 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9638 cfg->payload_len = data_size;
9639 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9640 memcpy((void *)cfg->payload,
9641 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9642 data_size);
9643 if (seq)
9644 cfg->payload_seq = *seq;
9645 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9646 cfg->wake_len = wake_size;
9647 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9648 memcpy((void *)cfg->wake_data,
9649 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9650 wake_size);
9651 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9652 data_size + wake_size;
9653 memcpy((void *)cfg->wake_mask,
9654 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9655 wake_mask_size);
9656 if (tok) {
9657 cfg->tokens_size = tokens_size;
9658 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9659 }
9660
9661 trig->tcp = cfg;
9662
9663 return 0;
9664}
9665
8cd4d456
LC		 9666static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9667 const struct wiphy_wowlan_support *wowlan,
9668 struct nlattr *attr,
9669 struct cfg80211_wowlan *trig)
9670{
9671 struct nlattr **tb;
9672 int err;
9673
9674 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9675 if (!tb)
9676 return -ENOMEM;
9677
9678 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9679 err = -EOPNOTSUPP;
9680 goto out;
9681 }
9682
9683 err = nla_parse(tb, NL80211_ATTR_MAX,
9684 nla_data(attr), nla_len(attr),
9685 nl80211_policy);
9686 if (err)
9687 goto out;
9688
ad2b26ab 9689 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9690 err = PTR_ERR_OR_ZERO(trig->nd_config);
9691 if (err)
9692 trig->nd_config = NULL;
9693
9694out:
9695 kfree(tb);
9696 return err;
9697}
9698
ff1b6e69
JB		 9699static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9700{
9701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9702 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9703 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9704 struct cfg80211_wowlan *ntrig;
964dc9e2 9705 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9706 int err, i;
6abb9cb9 9707 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9708 bool regular = false;
ff1b6e69 9709
964dc9e2 9710 if (!wowlan)
ff1b6e69
JB		 9711 return -EOPNOTSUPP;
9712
ae33bd81
JB		 9713 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9714 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9715 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9716 goto set_wakeup;
9717 }
ff1b6e69
JB		 9718
9719 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9720 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9721 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9722 nl80211_wowlan_policy);
9723 if (err)
9724 return err;
9725
9726 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9727 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9728 return -EINVAL;
9729 new_triggers.any = true;
9730 }
9731
9732 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9733 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9734 return -EINVAL;
9735 new_triggers.disconnect = true;
98fc4386 9736 regular = true;
ff1b6e69
JB		 9737 }
9738
9739 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9740 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9741 return -EINVAL;
9742 new_triggers.magic_pkt = true;
98fc4386 9743 regular = true;
ff1b6e69
JB		 9744 }
9745
77dbbb13
JB		 9746 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9747 return -EINVAL;
9748
9749 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9750 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9751 return -EINVAL;
9752 new_triggers.gtk_rekey_failure = true;
98fc4386 9753 regular = true;
77dbbb13
JB		 9754 }
9755
9756 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9757 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9758 return -EINVAL;
9759 new_triggers.eap_identity_req = true;
98fc4386 9760 regular = true;
77dbbb13
JB		 9761 }
9762
9763 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9764 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9765 return -EINVAL;
9766 new_triggers.four_way_handshake = true;
98fc4386 9767 regular = true;
77dbbb13
JB		 9768 }
9769
9770 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9771 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9772 return -EINVAL;
9773 new_triggers.rfkill_release = true;
98fc4386 9774 regular = true;
77dbbb13
JB		 9775 }
9776
ff1b6e69
JB		 9777 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9778 struct nlattr *pat;
9779 int n_patterns = 0;
bb92d199 9780 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9781 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9782
98fc4386
JB		 9783 regular = true;
9784
ff1b6e69
JB		 9785 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9786 rem)
9787 n_patterns++;
9788 if (n_patterns > wowlan->n_patterns)
9789 return -EINVAL;
9790
9791 new_triggers.patterns = kcalloc(n_patterns,
9792 sizeof(new_triggers.patterns[0]),
9793 GFP_KERNEL);
9794 if (!new_triggers.patterns)
9795 return -ENOMEM;
9796
9797 new_triggers.n_patterns = n_patterns;
9798 i = 0;
9799
9800 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9801 rem) {
922bd80f
JB		 9802 u8 *mask_pat;
9803
50ac6607
AK		 9804 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9805 nla_len(pat), NULL);
ff1b6e69 9806 err = -EINVAL;
50ac6607
AK		 9807 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9808 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9809 goto error;
50ac6607 9810 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9811 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9812 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9813 goto error;
9814 if (pat_len > wowlan->pattern_max_len ||
9815 pat_len < wowlan->pattern_min_len)
9816 goto error;
9817
50ac6607 9818 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9819 pkt_offset = 0;
9820 else
9821 pkt_offset = nla_get_u32(
50ac6607 9822 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9823 if (pkt_offset > wowlan->max_pkt_offset)
9824 goto error;
9825 new_triggers.patterns[i].pkt_offset = pkt_offset;
9826
922bd80f
JB		 9827 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9828 if (!mask_pat) {
ff1b6e69
JB		 9829 err = -ENOMEM;
9830 goto error;
9831 }
922bd80f
JB		 9832 new_triggers.patterns[i].mask = mask_pat;
9833 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9834 mask_len);
922bd80f
JB		 9835 mask_pat += mask_len;
9836 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9837 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9838 memcpy(mask_pat,
50ac6607 9839 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9840 pat_len);
9841 i++;
9842 }
9843 }
9844
2a0e047e 9845 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9846 regular = true;
2a0e047e
JB		 9847 err = nl80211_parse_wowlan_tcp(
9848 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9849 &new_triggers);
9850 if (err)
9851 goto error;
9852 }
9853
8cd4d456 9854 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9855 regular = true;
8cd4d456
LC		 9856 err = nl80211_parse_wowlan_nd(
9857 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9858 &new_triggers);
9859 if (err)
9860 goto error;
9861 }
9862
98fc4386
JB		 9863 /* The 'any' trigger means the device continues operating more or less
9864 * as in its normal operation mode and wakes up the host on most of the
9865 * normal interrupts (like packet RX, ...)
9866 * It therefore makes little sense to combine with the more constrained
9867 * wakeup trigger modes.
9868 */
9869 if (new_triggers.any && regular) {
9870 err = -EINVAL;
9871 goto error;
9872 }
9873
ae33bd81
JB		 9874 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9875 if (!ntrig) {
9876 err = -ENOMEM;
9877 goto error;
ff1b6e69 9878 }
ae33bd81 9879 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9880 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9881
ae33bd81 9882 set_wakeup:
6abb9cb9
JB		 9883 if (rdev->ops->set_wakeup &&
9884 prev_enabled != !!rdev->wiphy.wowlan_config)
9885 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9886
ff1b6e69
JB		 9887 return 0;
9888 error:
9889 for (i = 0; i < new_triggers.n_patterns; i++)
9890 kfree(new_triggers.patterns[i].mask);
9891 kfree(new_triggers.patterns);
2a0e047e
JB		 9892 if (new_triggers.tcp && new_triggers.tcp->sock)
9893 sock_release(new_triggers.tcp->sock);
9894 kfree(new_triggers.tcp);
e5dbe070 9895 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9896 return err;
9897}
dfb89c56 9898#endif
ff1b6e69 9899
be29b99a
AK		 9900static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9901 struct cfg80211_registered_device *rdev)
9902{
9903 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9904 int i, j, pat_len;
9905 struct cfg80211_coalesce_rules *rule;
9906
9907 if (!rdev->coalesce->n_rules)
9908 return 0;
9909
9910 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9911 if (!nl_rules)
9912 return -ENOBUFS;
9913
9914 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9915 nl_rule = nla_nest_start(msg, i + 1);
9916 if (!nl_rule)
9917 return -ENOBUFS;
9918
9919 rule = &rdev->coalesce->rules[i];
9920 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9921 rule->delay))
9922 return -ENOBUFS;
9923
9924 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9925 rule->condition))
9926 return -ENOBUFS;
9927
9928 nl_pats = nla_nest_start(msg,
9929 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9930 if (!nl_pats)
9931 return -ENOBUFS;
9932
9933 for (j = 0; j < rule->n_patterns; j++) {
9934 nl_pat = nla_nest_start(msg, j + 1);
9935 if (!nl_pat)
9936 return -ENOBUFS;
9937 pat_len = rule->patterns[j].pattern_len;
9938 if (nla_put(msg, NL80211_PKTPAT_MASK,
9939 DIV_ROUND_UP(pat_len, 8),
9940 rule->patterns[j].mask) ||
9941 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9942 rule->patterns[j].pattern) ||
9943 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9944 rule->patterns[j].pkt_offset))
9945 return -ENOBUFS;
9946 nla_nest_end(msg, nl_pat);
9947 }
9948 nla_nest_end(msg, nl_pats);
9949 nla_nest_end(msg, nl_rule);
9950 }
9951 nla_nest_end(msg, nl_rules);
9952
9953 return 0;
9954}
9955
9956static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9957{
9958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9959 struct sk_buff *msg;
9960 void *hdr;
9961
9962 if (!rdev->wiphy.coalesce)
9963 return -EOPNOTSUPP;
9964
9965 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9966 if (!msg)
9967 return -ENOMEM;
9968
9969 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9970 NL80211_CMD_GET_COALESCE);
9971 if (!hdr)
9972 goto nla_put_failure;
9973
9974 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9975 goto nla_put_failure;
9976
9977 genlmsg_end(msg, hdr);
9978 return genlmsg_reply(msg, info);
9979
9980nla_put_failure:
9981 nlmsg_free(msg);
9982 return -ENOBUFS;
9983}
9984
9985void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9986{
9987 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9988 int i, j;
9989 struct cfg80211_coalesce_rules *rule;
9990
9991 if (!coalesce)
9992 return;
9993
9994 for (i = 0; i < coalesce->n_rules; i++) {
9995 rule = &coalesce->rules[i];
9996 for (j = 0; j < rule->n_patterns; j++)
9997 kfree(rule->patterns[j].mask);
9998 kfree(rule->patterns);
9999 }
10000 kfree(coalesce->rules);
10001 kfree(coalesce);
10002 rdev->coalesce = NULL;
10003}
10004
10005static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10006 struct nlattr *rule,
10007 struct cfg80211_coalesce_rules *new_rule)
10008{
10009 int err, i;
10010 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10011 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10012 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10013 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10014
10015 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
10016 nla_len(rule), nl80211_coalesce_policy);
10017 if (err)
10018 return err;
10019
10020 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10021 new_rule->delay =
10022 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10023 if (new_rule->delay > coalesce->max_delay)
10024 return -EINVAL;
10025
10026 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10027 new_rule->condition =
10028 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10029 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10030 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10031 return -EINVAL;
10032
10033 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10034 return -EINVAL;
10035
10036 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10037 rem)
10038 n_patterns++;
10039 if (n_patterns > coalesce->n_patterns)
10040 return -EINVAL;
10041
10042 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10043 GFP_KERNEL);
10044 if (!new_rule->patterns)
10045 return -ENOMEM;
10046
10047 new_rule->n_patterns = n_patterns;
10048 i = 0;
10049
10050 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10051 rem) {
922bd80f
JB		 10052 u8 *mask_pat;
10053
be29b99a
AK		 10054 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10055 nla_len(pat), NULL);
10056 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10057 !pat_tb[NL80211_PKTPAT_PATTERN])
10058 return -EINVAL;
10059 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10060 mask_len = DIV_ROUND_UP(pat_len, 8);
10061 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10062 return -EINVAL;
10063 if (pat_len > coalesce->pattern_max_len ||
10064 pat_len < coalesce->pattern_min_len)
10065 return -EINVAL;
10066
10067 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10068 pkt_offset = 0;
10069 else
10070 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10071 if (pkt_offset > coalesce->max_pkt_offset)
10072 return -EINVAL;
10073 new_rule->patterns[i].pkt_offset = pkt_offset;
10074
922bd80f
JB		 10075 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10076 if (!mask_pat)
be29b99a 10077 return -ENOMEM;
922bd80f
JB		 10078
10079 new_rule->patterns[i].mask = mask_pat;
10080 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10081 mask_len);
10082
10083 mask_pat += mask_len;
10084 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10085 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10086 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10087 pat_len);
be29b99a
AK		 10088 i++;
10089 }
10090
10091 return 0;
10092}
10093
10094static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10095{
10096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10097 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10098 struct cfg80211_coalesce new_coalesce = {};
10099 struct cfg80211_coalesce *n_coalesce;
10100 int err, rem_rule, n_rules = 0, i, j;
10101 struct nlattr *rule;
10102 struct cfg80211_coalesce_rules *tmp_rule;
10103
10104 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10105 return -EOPNOTSUPP;
10106
10107 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10108 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10109 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10110 return 0;
10111 }
10112
10113 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10114 rem_rule)
10115 n_rules++;
10116 if (n_rules > coalesce->n_rules)
10117 return -EINVAL;
10118
10119 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10120 GFP_KERNEL);
10121 if (!new_coalesce.rules)
10122 return -ENOMEM;
10123
10124 new_coalesce.n_rules = n_rules;
10125 i = 0;
10126
10127 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10128 rem_rule) {
10129 err = nl80211_parse_coalesce_rule(rdev, rule,
10130 &new_coalesce.rules[i]);
10131 if (err)
10132 goto error;
10133
10134 i++;
10135 }
10136
a1056b1b 10137 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10138 if (err)
10139 goto error;
10140
10141 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10142 if (!n_coalesce) {
10143 err = -ENOMEM;
10144 goto error;
10145 }
10146 cfg80211_rdev_free_coalesce(rdev);
10147 rdev->coalesce = n_coalesce;
10148
10149 return 0;
10150error:
10151 for (i = 0; i < new_coalesce.n_rules; i++) {
10152 tmp_rule = &new_coalesce.rules[i];
10153 for (j = 0; j < tmp_rule->n_patterns; j++)
10154 kfree(tmp_rule->patterns[j].mask);
10155 kfree(tmp_rule->patterns);
10156 }
10157 kfree(new_coalesce.rules);
10158
10159 return err;
10160}
10161
e5497d76
JB		 10162static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10163{
10164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10165 struct net_device *dev = info->user_ptr[1];
10166 struct wireless_dev *wdev = dev->ieee80211_ptr;
10167 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10168 struct cfg80211_gtk_rekey_data rekey_data;
10169 int err;
10170
10171 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10172 return -EINVAL;
10173
10174 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10175 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10176 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10177 nl80211_rekey_policy);
10178 if (err)
10179 return err;
10180
10181 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10182 return -ERANGE;
10183 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10184 return -ERANGE;
10185 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10186 return -ERANGE;
10187
78f686ca
JB		 10188 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10189 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10190 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10191
10192 wdev_lock(wdev);
10193 if (!wdev->current_bss) {
10194 err = -ENOTCONN;
10195 goto out;
10196 }
10197
10198 if (!rdev->ops->set_rekey_data) {
10199 err = -EOPNOTSUPP;
10200 goto out;
10201 }
10202
e35e4d28 10203 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10204 out:
10205 wdev_unlock(wdev);
10206 return err;
10207}
10208
28946da7
JB		 10209static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10210 struct genl_info *info)
10211{
10212 struct net_device *dev = info->user_ptr[1];
10213 struct wireless_dev *wdev = dev->ieee80211_ptr;
10214
10215 if (wdev->iftype != NL80211_IFTYPE_AP &&
10216 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10217 return -EINVAL;
10218
15e47304 10219 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10220 return -EBUSY;
10221
15e47304 10222 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10223 return 0;
10224}
10225
7f6cf311
JB		 10226static int nl80211_probe_client(struct sk_buff *skb,
10227 struct genl_info *info)
10228{
10229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10230 struct net_device *dev = info->user_ptr[1];
10231 struct wireless_dev *wdev = dev->ieee80211_ptr;
10232 struct sk_buff *msg;
10233 void *hdr;
10234 const u8 *addr;
10235 u64 cookie;
10236 int err;
10237
10238 if (wdev->iftype != NL80211_IFTYPE_AP &&
10239 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10240 return -EOPNOTSUPP;
10241
10242 if (!info->attrs[NL80211_ATTR_MAC])
10243 return -EINVAL;
10244
10245 if (!rdev->ops->probe_client)
10246 return -EOPNOTSUPP;
10247
10248 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10249 if (!msg)
10250 return -ENOMEM;
10251
15e47304 10252 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10253 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10254 if (!hdr) {
10255 err = -ENOBUFS;
7f6cf311
JB		 10256 goto free_msg;
10257 }
10258
10259 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10260
e35e4d28 10261 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10262 if (err)
10263 goto free_msg;
10264
2dad624e
ND		 10265 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10266 NL80211_ATTR_PAD))
9360ffd1 10267 goto nla_put_failure;
7f6cf311
JB		 10268
10269 genlmsg_end(msg, hdr);
10270
10271 return genlmsg_reply(msg, info);
10272
10273 nla_put_failure:
10274 err = -ENOBUFS;
10275 free_msg:
10276 nlmsg_free(msg);
10277 return err;
10278}
10279
5e760230
JB		 10280static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10281{
10282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10283 struct cfg80211_beacon_registration *reg, *nreg;
10284 int rv;
5e760230
JB		 10285
10286 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10287 return -EOPNOTSUPP;
10288
37c73b5f
BG		 10289 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10290 if (!nreg)
10291 return -ENOMEM;
10292
10293 /* First, check if already registered. */
10294 spin_lock_bh(&rdev->beacon_registrations_lock);
10295 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10296 if (reg->nlportid == info->snd_portid) {
10297 rv = -EALREADY;
10298 goto out_err;
10299 }
10300 }
10301 /* Add it to the list */
10302 nreg->nlportid = info->snd_portid;
10303 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10304
37c73b5f 10305 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10306
10307 return 0;
37c73b5f
BG		 10308out_err:
10309 spin_unlock_bh(&rdev->beacon_registrations_lock);
10310 kfree(nreg);
10311 return rv;
5e760230
JB		 10312}
10313
98104fde
JB		 10314static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10315{
10316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10317 struct wireless_dev *wdev = info->user_ptr[1];
10318 int err;
10319
10320 if (!rdev->ops->start_p2p_device)
10321 return -EOPNOTSUPP;
10322
10323 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10324 return -EOPNOTSUPP;
10325
10326 if (wdev->p2p_started)
10327 return 0;
10328
b6a55015
LC		 10329 if (rfkill_blocked(rdev->rfkill))
10330 return -ERFKILL;
98104fde 10331
eeb126e9 10332 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10333 if (err)
10334 return err;
10335
10336 wdev->p2p_started = true;
98104fde 10337 rdev->opencount++;
98104fde
JB		 10338
10339 return 0;
10340}
10341
10342static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10343{
10344 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10345 struct wireless_dev *wdev = info->user_ptr[1];
10346
10347 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10348 return -EOPNOTSUPP;
10349
10350 if (!rdev->ops->stop_p2p_device)
10351 return -EOPNOTSUPP;
10352
f9f47529 10353 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10354
10355 return 0;
10356}
10357
3713b4e3
JB		 10358static int nl80211_get_protocol_features(struct sk_buff *skb,
10359 struct genl_info *info)
10360{
10361 void *hdr;
10362 struct sk_buff *msg;
10363
10364 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10365 if (!msg)
10366 return -ENOMEM;
10367
10368 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10369 NL80211_CMD_GET_PROTOCOL_FEATURES);
10370 if (!hdr)
10371 goto nla_put_failure;
10372
10373 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10374 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10375 goto nla_put_failure;
10376
10377 genlmsg_end(msg, hdr);
10378 return genlmsg_reply(msg, info);
10379
10380 nla_put_failure:
10381 kfree_skb(msg);
10382 return -ENOBUFS;
10383}
10384
355199e0
JM		 10385static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10386{
10387 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10388 struct cfg80211_update_ft_ies_params ft_params;
10389 struct net_device *dev = info->user_ptr[1];
10390
10391 if (!rdev->ops->update_ft_ies)
10392 return -EOPNOTSUPP;
10393
10394 if (!info->attrs[NL80211_ATTR_MDID] ||
10395 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10396 return -EINVAL;
10397
10398 memset(&ft_params, 0, sizeof(ft_params));
10399 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10400 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10401 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10402
10403 return rdev_update_ft_ies(rdev, dev, &ft_params);
10404}
10405
5de17984
AS		 10406static int nl80211_crit_protocol_start(struct sk_buff *skb,
10407 struct genl_info *info)
10408{
10409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10410 struct wireless_dev *wdev = info->user_ptr[1];
10411 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10412 u16 duration;
10413 int ret;
10414
10415 if (!rdev->ops->crit_proto_start)
10416 return -EOPNOTSUPP;
10417
10418 if (WARN_ON(!rdev->ops->crit_proto_stop))
10419 return -EINVAL;
10420
10421 if (rdev->crit_proto_nlportid)
10422 return -EBUSY;
10423
10424 /* determine protocol if provided */
10425 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10426 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10427
10428 if (proto >= NUM_NL80211_CRIT_PROTO)
10429 return -EINVAL;
10430
10431 /* timeout must be provided */
10432 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10433 return -EINVAL;
10434
10435 duration =
10436 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10437
10438 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10439 return -ERANGE;
10440
10441 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10442 if (!ret)
10443 rdev->crit_proto_nlportid = info->snd_portid;
10444
10445 return ret;
10446}
10447
10448static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10449 struct genl_info *info)
10450{
10451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10452 struct wireless_dev *wdev = info->user_ptr[1];
10453
10454 if (!rdev->ops->crit_proto_stop)
10455 return -EOPNOTSUPP;
10456
10457 if (rdev->crit_proto_nlportid) {
10458 rdev->crit_proto_nlportid = 0;
10459 rdev_crit_proto_stop(rdev, wdev);
10460 }
10461 return 0;
10462}
10463
ad7e718c
JB		 10464static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10465{
10466 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10467 struct wireless_dev *wdev =
10468 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10469 int i, err;
10470 u32 vid, subcmd;
10471
10472 if (!rdev->wiphy.vendor_commands)
10473 return -EOPNOTSUPP;
10474
10475 if (IS_ERR(wdev)) {
10476 err = PTR_ERR(wdev);
10477 if (err != -EINVAL)
10478 return err;
10479 wdev = NULL;
10480 } else if (wdev->wiphy != &rdev->wiphy) {
10481 return -EINVAL;
10482 }
10483
10484 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10485 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10486 return -EINVAL;
10487
10488 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10489 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10490 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10491 const struct wiphy_vendor_command *vcmd;
10492 void *data = NULL;
10493 int len = 0;
10494
10495 vcmd = &rdev->wiphy.vendor_commands[i];
10496
10497 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10498 continue;
10499
10500 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10501 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10502 if (!wdev)
10503 return -EINVAL;
10504 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10505 !wdev->netdev)
10506 return -EINVAL;
10507
10508 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10509 if (wdev->netdev &&
10510 !netif_running(wdev->netdev))
10511 return -ENETDOWN;
10512 if (!wdev->netdev && !wdev->p2p_started)
10513 return -ENETDOWN;
10514 }
7bdbe400
JB		 10515
10516 if (!vcmd->doit)
10517 return -EOPNOTSUPP;
ad7e718c
JB		 10518 } else {
10519 wdev = NULL;
10520 }
10521
10522 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10523 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10524 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10525 }
10526
10527 rdev->cur_cmd_info = info;
10528 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10529 data, len);
10530 rdev->cur_cmd_info = NULL;
10531 return err;
10532 }
10533
10534 return -EOPNOTSUPP;
10535}
10536
7bdbe400
JB		 10537static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10538 struct netlink_callback *cb,
10539 struct cfg80211_registered_device **rdev,
10540 struct wireless_dev **wdev)
10541{
10542 u32 vid, subcmd;
10543 unsigned int i;
10544 int vcmd_idx = -1;
10545 int err;
10546 void *data = NULL;
10547 unsigned int data_len = 0;
10548
10549 rtnl_lock();
10550
10551 if (cb->args[0]) {
10552 /* subtract the 1 again here */
10553 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10554 struct wireless_dev *tmp;
10555
10556 if (!wiphy) {
10557 err = -ENODEV;
10558 goto out_unlock;
10559 }
10560 *rdev = wiphy_to_rdev(wiphy);
10561 *wdev = NULL;
10562
10563 if (cb->args[1]) {
53873f13 10564 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 10565 if (tmp->identifier == cb->args[1] - 1) {
10566 *wdev = tmp;
10567 break;
10568 }
10569 }
10570 }
10571
10572 /* keep rtnl locked in successful case */
10573 return 0;
10574 }
10575
10576 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10577 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10578 nl80211_policy);
10579 if (err)
10580 goto out_unlock;
10581
10582 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10583 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10584 err = -EINVAL;
10585 goto out_unlock;
10586 }
10587
10588 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10589 nl80211_fam.attrbuf);
10590 if (IS_ERR(*wdev))
10591 *wdev = NULL;
10592
10593 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10594 nl80211_fam.attrbuf);
10595 if (IS_ERR(*rdev)) {
10596 err = PTR_ERR(*rdev);
10597 goto out_unlock;
10598 }
10599
10600 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10601 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10602
10603 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10604 const struct wiphy_vendor_command *vcmd;
10605
10606 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10607
10608 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10609 continue;
10610
10611 if (!vcmd->dumpit) {
10612 err = -EOPNOTSUPP;
10613 goto out_unlock;
10614 }
10615
10616 vcmd_idx = i;
10617 break;
10618 }
10619
10620 if (vcmd_idx < 0) {
10621 err = -EOPNOTSUPP;
10622 goto out_unlock;
10623 }
10624
10625 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10626 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10627 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10628 }
10629
10630 /* 0 is the first index - add 1 to parse only once */
10631 cb->args[0] = (*rdev)->wiphy_idx + 1;
10632 /* add 1 to know if it was NULL */
10633 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10634 cb->args[2] = vcmd_idx;
10635 cb->args[3] = (unsigned long)data;
10636 cb->args[4] = data_len;
10637
10638 /* keep rtnl locked in successful case */
10639 return 0;
10640 out_unlock:
10641 rtnl_unlock();
10642 return err;
10643}
10644
10645static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10646 struct netlink_callback *cb)
10647{
10648 struct cfg80211_registered_device *rdev;
10649 struct wireless_dev *wdev;
10650 unsigned int vcmd_idx;
10651 const struct wiphy_vendor_command *vcmd;
10652 void *data;
10653 int data_len;
10654 int err;
10655 struct nlattr *vendor_data;
10656
10657 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10658 if (err)
10659 return err;
10660
10661 vcmd_idx = cb->args[2];
10662 data = (void *)cb->args[3];
10663 data_len = cb->args[4];
10664 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10665
10666 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10667 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10668 if (!wdev)
10669 return -EINVAL;
10670 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10671 !wdev->netdev)
10672 return -EINVAL;
10673
10674 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10675 if (wdev->netdev &&
10676 !netif_running(wdev->netdev))
10677 return -ENETDOWN;
10678 if (!wdev->netdev && !wdev->p2p_started)
10679 return -ENETDOWN;
10680 }
10681 }
10682
10683 while (1) {
10684 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10685 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10686 NL80211_CMD_VENDOR);
10687 if (!hdr)
10688 break;
10689
10690 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 10691 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10692 wdev_id(wdev),
10693 NL80211_ATTR_PAD))) {
7bdbe400
JB		 10694 genlmsg_cancel(skb, hdr);
10695 break;
10696 }
10697
10698 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10699 if (!vendor_data) {
10700 genlmsg_cancel(skb, hdr);
10701 break;
10702 }
10703
10704 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10705 (unsigned long *)&cb->args[5]);
10706 nla_nest_end(skb, vendor_data);
10707
10708 if (err == -ENOBUFS || err == -ENOENT) {
10709 genlmsg_cancel(skb, hdr);
10710 break;
10711 } else if (err) {
10712 genlmsg_cancel(skb, hdr);
10713 goto out;
10714 }
10715
10716 genlmsg_end(skb, hdr);
10717 }
10718
10719 err = skb->len;
10720 out:
10721 rtnl_unlock();
10722 return err;
10723}
10724
ad7e718c
JB		 10725struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10726 enum nl80211_commands cmd,
10727 enum nl80211_attrs attr,
10728 int approxlen)
10729{
f26cbf40 10730 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10731
10732 if (WARN_ON(!rdev->cur_cmd_info))
10733 return NULL;
10734
6c09e791 10735 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10736 rdev->cur_cmd_info->snd_portid,
10737 rdev->cur_cmd_info->snd_seq,
567ffc35 10738 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10739}
10740EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10741
10742int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10743{
10744 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10745 void *hdr = ((void **)skb->cb)[1];
10746 struct nlattr *data = ((void **)skb->cb)[2];
10747
bd8c78e7
JB		 10748 /* clear CB data for netlink core to own from now on */
10749 memset(skb->cb, 0, sizeof(skb->cb));
10750
ad7e718c
JB		 10751 if (WARN_ON(!rdev->cur_cmd_info)) {
10752 kfree_skb(skb);
10753 return -EINVAL;
10754 }
10755
10756 nla_nest_end(skb, data);
10757 genlmsg_end(skb, hdr);
10758 return genlmsg_reply(skb, rdev->cur_cmd_info);
10759}
10760EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10761
fa9ffc74
KP		 10762static int nl80211_set_qos_map(struct sk_buff *skb,
10763 struct genl_info *info)
10764{
10765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10766 struct cfg80211_qos_map *qos_map = NULL;
10767 struct net_device *dev = info->user_ptr[1];
10768 u8 *pos, len, num_des, des_len, des;
10769 int ret;
10770
10771 if (!rdev->ops->set_qos_map)
10772 return -EOPNOTSUPP;
10773
10774 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10775 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10776 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10777
10778 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10779 len > IEEE80211_QOS_MAP_LEN_MAX)
10780 return -EINVAL;
10781
10782 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10783 if (!qos_map)
10784 return -ENOMEM;
10785
10786 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10787 if (num_des) {
10788 des_len = num_des *
10789 sizeof(struct cfg80211_dscp_exception);
10790 memcpy(qos_map->dscp_exception, pos, des_len);
10791 qos_map->num_des = num_des;
10792 for (des = 0; des < num_des; des++) {
10793 if (qos_map->dscp_exception[des].up > 7) {
10794 kfree(qos_map);
10795 return -EINVAL;
10796 }
10797 }
10798 pos += des_len;
10799 }
10800 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10801 }
10802
10803 wdev_lock(dev->ieee80211_ptr);
10804 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10805 if (!ret)
10806 ret = rdev_set_qos_map(rdev, dev, qos_map);
10807 wdev_unlock(dev->ieee80211_ptr);
10808
10809 kfree(qos_map);
10810 return ret;
10811}
10812
960d01ac
JB		 10813static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10814{
10815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10816 struct net_device *dev = info->user_ptr[1];
10817 struct wireless_dev *wdev = dev->ieee80211_ptr;
10818 const u8 *peer;
10819 u8 tsid, up;
10820 u16 admitted_time = 0;
10821 int err;
10822
723e73ac 10823 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10824 return -EOPNOTSUPP;
10825
10826 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10827 !info->attrs[NL80211_ATTR_USER_PRIO])
10828 return -EINVAL;
10829
10830 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10831 if (tsid >= IEEE80211_NUM_TIDS)
10832 return -EINVAL;
10833
10834 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10835 if (up >= IEEE80211_NUM_UPS)
10836 return -EINVAL;
10837
10838 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10839 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10840 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10841 * need more attributes for that (e.g. BA session requirement);
10842 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10843 */
10844 return -EINVAL;
10845 }
10846
10847 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10848
10849 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10850 admitted_time =
10851 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10852 if (!admitted_time)
10853 return -EINVAL;
10854 }
10855
10856 wdev_lock(wdev);
10857 switch (wdev->iftype) {
10858 case NL80211_IFTYPE_STATION:
10859 case NL80211_IFTYPE_P2P_CLIENT:
10860 if (wdev->current_bss)
10861 break;
10862 err = -ENOTCONN;
10863 goto out;
10864 default:
10865 err = -EOPNOTSUPP;
10866 goto out;
10867 }
10868
10869 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10870
10871 out:
10872 wdev_unlock(wdev);
10873 return err;
10874}
10875
10876static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10877{
10878 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10879 struct net_device *dev = info->user_ptr[1];
10880 struct wireless_dev *wdev = dev->ieee80211_ptr;
10881 const u8 *peer;
10882 u8 tsid;
10883 int err;
10884
10885 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10886 return -EINVAL;
10887
10888 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10889 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10890
10891 wdev_lock(wdev);
10892 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10893 wdev_unlock(wdev);
10894
10895 return err;
10896}
10897
1057d35e
AN		 10898static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10899 struct genl_info *info)
10900{
10901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10902 struct net_device *dev = info->user_ptr[1];
10903 struct wireless_dev *wdev = dev->ieee80211_ptr;
10904 struct cfg80211_chan_def chandef = {};
10905 const u8 *addr;
10906 u8 oper_class;
10907 int err;
10908
10909 if (!rdev->ops->tdls_channel_switch ||
10910 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10911 return -EOPNOTSUPP;
10912
10913 switch (dev->ieee80211_ptr->iftype) {
10914 case NL80211_IFTYPE_STATION:
10915 case NL80211_IFTYPE_P2P_CLIENT:
10916 break;
10917 default:
10918 return -EOPNOTSUPP;
10919 }
10920
10921 if (!info->attrs[NL80211_ATTR_MAC] ||
10922 !info->attrs[NL80211_ATTR_OPER_CLASS])
10923 return -EINVAL;
10924
10925 err = nl80211_parse_chandef(rdev, info, &chandef);
10926 if (err)
10927 return err;
10928
10929 /*
10930 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10931 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10932 * specification is not defined for them.
10933 */
57fbcce3 10934 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 10935 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10936 chandef.width != NL80211_CHAN_WIDTH_20)
10937 return -EINVAL;
10938
10939 /* we will be active on the TDLS link */
923b352f
AN		 10940 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10941 wdev->iftype))
1057d35e
AN		 10942 return -EINVAL;
10943
10944 /* don't allow switching to DFS channels */
10945 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10946 return -EINVAL;
10947
10948 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10949 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10950
10951 wdev_lock(wdev);
10952 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10953 wdev_unlock(wdev);
10954
10955 return err;
10956}
10957
10958static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10959 struct genl_info *info)
10960{
10961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10962 struct net_device *dev = info->user_ptr[1];
10963 struct wireless_dev *wdev = dev->ieee80211_ptr;
10964 const u8 *addr;
10965
10966 if (!rdev->ops->tdls_channel_switch ||
10967 !rdev->ops->tdls_cancel_channel_switch ||
10968 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10969 return -EOPNOTSUPP;
10970
10971 switch (dev->ieee80211_ptr->iftype) {
10972 case NL80211_IFTYPE_STATION:
10973 case NL80211_IFTYPE_P2P_CLIENT:
10974 break;
10975 default:
10976 return -EOPNOTSUPP;
10977 }
10978
10979 if (!info->attrs[NL80211_ATTR_MAC])
10980 return -EINVAL;
10981
10982 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10983
10984 wdev_lock(wdev);
10985 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10986 wdev_unlock(wdev);
10987
10988 return 0;
10989}
10990
4c476991
JB		 10991#define NL80211_FLAG_NEED_WIPHY 0x01
10992#define NL80211_FLAG_NEED_NETDEV 0x02
10993#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10994#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10995#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10996 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10997#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10998/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10999#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11000 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11001#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11002
f84f771d 11003static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11004 struct genl_info *info)
11005{
11006 struct cfg80211_registered_device *rdev;
89a54e48 11007 struct wireless_dev *wdev;
4c476991 11008 struct net_device *dev;
4c476991
JB		 11009 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11010
11011 if (rtnl)
11012 rtnl_lock();
11013
11014 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11015 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11016 if (IS_ERR(rdev)) {
11017 if (rtnl)
11018 rtnl_unlock();
11019 return PTR_ERR(rdev);
11020 }
11021 info->user_ptr[0] = rdev;
1bf614ef
JB		 11022 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11023 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11024 ASSERT_RTNL();
11025
89a54e48
JB		 11026 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11027 info->attrs);
11028 if (IS_ERR(wdev)) {
4c476991
JB		 11029 if (rtnl)
11030 rtnl_unlock();
89a54e48 11031 return PTR_ERR(wdev);
4c476991 11032 }
89a54e48 11033
89a54e48 11034 dev = wdev->netdev;
f26cbf40 11035 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11036
1bf614ef
JB		 11037 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11038 if (!dev) {
1bf614ef
JB		 11039 if (rtnl)
11040 rtnl_unlock();
11041 return -EINVAL;
11042 }
11043
11044 info->user_ptr[1] = dev;
11045 } else {
11046 info->user_ptr[1] = wdev;
41265714 11047 }
1bf614ef
JB		 11048
11049 if (dev) {
11050 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11051 !netif_running(dev)) {
1bf614ef
JB		 11052 if (rtnl)
11053 rtnl_unlock();
11054 return -ENETDOWN;
11055 }
11056
11057 dev_hold(dev);
98104fde
JB		 11058 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11059 if (!wdev->p2p_started) {
98104fde
JB		 11060 if (rtnl)
11061 rtnl_unlock();
11062 return -ENETDOWN;
11063 }
41265714 11064 }
89a54e48 11065
4c476991 11066 info->user_ptr[0] = rdev;
4c476991
JB		 11067 }
11068
11069 return 0;
11070}
11071
f84f771d 11072static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11073 struct genl_info *info)
11074{
1bf614ef
JB		 11075 if (info->user_ptr[1]) {
11076 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11077 struct wireless_dev *wdev = info->user_ptr[1];
11078
11079 if (wdev->netdev)
11080 dev_put(wdev->netdev);
11081 } else {
11082 dev_put(info->user_ptr[1]);
11083 }
11084 }
5393b917 11085
4c476991
JB		 11086 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11087 rtnl_unlock();
5393b917
JB		 11088
11089 /* If needed, clear the netlink message payload from the SKB
11090 * as it might contain key data that shouldn't stick around on
11091 * the heap after the SKB is freed. The netlink message header
11092 * is still needed for further processing, so leave it intact.
11093 */
11094 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11095 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11096
11097 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11098 }
4c476991
JB		 11099}
11100
4534de83 11101static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11102 {
11103 .cmd = NL80211_CMD_GET_WIPHY,
11104 .doit = nl80211_get_wiphy,
11105 .dumpit = nl80211_dump_wiphy,
86e8cf98 11106 .done = nl80211_dump_wiphy_done,
55682965
JB		 11107 .policy = nl80211_policy,
11108 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11109 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11110 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11111 },
11112 {
11113 .cmd = NL80211_CMD_SET_WIPHY,
11114 .doit = nl80211_set_wiphy,
11115 .policy = nl80211_policy,
5617c6cd 11116 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11117 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11118 },
11119 {
11120 .cmd = NL80211_CMD_GET_INTERFACE,
11121 .doit = nl80211_get_interface,
11122 .dumpit = nl80211_dump_interface,
11123 .policy = nl80211_policy,
11124 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11125 .internal_flags = NL80211_FLAG_NEED_WDEV |
11126 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11127 },
11128 {
11129 .cmd = NL80211_CMD_SET_INTERFACE,
11130 .doit = nl80211_set_interface,
11131 .policy = nl80211_policy,
5617c6cd 11132 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11133 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11134 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11135 },
11136 {
11137 .cmd = NL80211_CMD_NEW_INTERFACE,
11138 .doit = nl80211_new_interface,
11139 .policy = nl80211_policy,
5617c6cd 11140 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11141 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11142 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11143 },
11144 {
11145 .cmd = NL80211_CMD_DEL_INTERFACE,
11146 .doit = nl80211_del_interface,
11147 .policy = nl80211_policy,
5617c6cd 11148 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11149 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11150 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11151 },
11152 {
11153 .cmd = NL80211_CMD_GET_KEY,
11154 .doit = nl80211_get_key,
11155 .policy = nl80211_policy,
5617c6cd 11156 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11158 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11159 },
11160 {
11161 .cmd = NL80211_CMD_SET_KEY,
11162 .doit = nl80211_set_key,
11163 .policy = nl80211_policy,
5617c6cd 11164 .flags = GENL_UNS_ADMIN_PERM,
41265714 11165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11166 NL80211_FLAG_NEED_RTNL |
11167 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11168 },
11169 {
11170 .cmd = NL80211_CMD_NEW_KEY,
11171 .doit = nl80211_new_key,
11172 .policy = nl80211_policy,
5617c6cd 11173 .flags = GENL_UNS_ADMIN_PERM,
41265714 11174 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11175 NL80211_FLAG_NEED_RTNL |
11176 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11177 },
11178 {
11179 .cmd = NL80211_CMD_DEL_KEY,
11180 .doit = nl80211_del_key,
11181 .policy = nl80211_policy,
5617c6cd 11182 .flags = GENL_UNS_ADMIN_PERM,
41265714 11183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11184 NL80211_FLAG_NEED_RTNL,
55682965 11185 },
ed1b6cc7
JB		 11186 {
11187 .cmd = NL80211_CMD_SET_BEACON,
11188 .policy = nl80211_policy,
5617c6cd 11189 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11190 .doit = nl80211_set_beacon,
2b5f8b0b 11191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11192 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11193 },
11194 {
8860020e 11195 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11196 .policy = nl80211_policy,
5617c6cd 11197 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11198 .doit = nl80211_start_ap,
2b5f8b0b 11199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11200 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11201 },
11202 {
8860020e 11203 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11204 .policy = nl80211_policy,
5617c6cd 11205 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11206 .doit = nl80211_stop_ap,
2b5f8b0b 11207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11208 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11209 },
5727ef1b
JB		 11210 {
11211 .cmd = NL80211_CMD_GET_STATION,
11212 .doit = nl80211_get_station,
2ec600d6 11213 .dumpit = nl80211_dump_station,
5727ef1b 11214 .policy = nl80211_policy,
4c476991
JB		 11215 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11216 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11217 },
11218 {
11219 .cmd = NL80211_CMD_SET_STATION,
11220 .doit = nl80211_set_station,
11221 .policy = nl80211_policy,
5617c6cd 11222 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11224 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11225 },
11226 {
11227 .cmd = NL80211_CMD_NEW_STATION,
11228 .doit = nl80211_new_station,
11229 .policy = nl80211_policy,
5617c6cd 11230 .flags = GENL_UNS_ADMIN_PERM,
41265714 11231 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11232 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11233 },
11234 {
11235 .cmd = NL80211_CMD_DEL_STATION,
11236 .doit = nl80211_del_station,
11237 .policy = nl80211_policy,
5617c6cd 11238 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11239 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11240 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11241 },
11242 {
11243 .cmd = NL80211_CMD_GET_MPATH,
11244 .doit = nl80211_get_mpath,
11245 .dumpit = nl80211_dump_mpath,
11246 .policy = nl80211_policy,
5617c6cd 11247 .flags = GENL_UNS_ADMIN_PERM,
41265714 11248 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11249 NL80211_FLAG_NEED_RTNL,
2ec600d6 11250 },
66be7d2b
HR		 11251 {
11252 .cmd = NL80211_CMD_GET_MPP,
11253 .doit = nl80211_get_mpp,
11254 .dumpit = nl80211_dump_mpp,
11255 .policy = nl80211_policy,
5617c6cd 11256 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11257 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11258 NL80211_FLAG_NEED_RTNL,
11259 },
2ec600d6
LCC		 11260 {
11261 .cmd = NL80211_CMD_SET_MPATH,
11262 .doit = nl80211_set_mpath,
11263 .policy = nl80211_policy,
5617c6cd 11264 .flags = GENL_UNS_ADMIN_PERM,
41265714 11265 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11266 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11267 },
11268 {
11269 .cmd = NL80211_CMD_NEW_MPATH,
11270 .doit = nl80211_new_mpath,
11271 .policy = nl80211_policy,
5617c6cd 11272 .flags = GENL_UNS_ADMIN_PERM,
41265714 11273 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11274 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11275 },
11276 {
11277 .cmd = NL80211_CMD_DEL_MPATH,
11278 .doit = nl80211_del_mpath,
11279 .policy = nl80211_policy,
5617c6cd 11280 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11281 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11282 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11283 },
11284 {
11285 .cmd = NL80211_CMD_SET_BSS,
11286 .doit = nl80211_set_bss,
11287 .policy = nl80211_policy,
5617c6cd 11288 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11289 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11290 NL80211_FLAG_NEED_RTNL,
b2e1b302 11291 },
f130347c
LR		 11292 {
11293 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11294 .doit = nl80211_get_reg_do,
11295 .dumpit = nl80211_get_reg_dump,
f130347c 11296 .policy = nl80211_policy,
5fe231e8 11297 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11298 /* can be retrieved by unprivileged users */
11299 },
b6863036 11300#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11301 {
11302 .cmd = NL80211_CMD_SET_REG,
11303 .doit = nl80211_set_reg,
11304 .policy = nl80211_policy,
11305 .flags = GENL_ADMIN_PERM,
5fe231e8 11306 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11307 },
b6863036 11308#endif
b2e1b302
LR		 11309 {
11310 .cmd = NL80211_CMD_REQ_SET_REG,
11311 .doit = nl80211_req_set_reg,
11312 .policy = nl80211_policy,
93da9cc1 11313 .flags = GENL_ADMIN_PERM,
11314 },
11315 {
24bdd9f4
JC		 11316 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11317 .doit = nl80211_get_mesh_config,
93da9cc1 11318 .policy = nl80211_policy,
11319 /* can be retrieved by unprivileged users */
2b5f8b0b 11320 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11321 NL80211_FLAG_NEED_RTNL,
93da9cc1 11322 },
11323 {
24bdd9f4
JC		 11324 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11325 .doit = nl80211_update_mesh_config,
93da9cc1 11326 .policy = nl80211_policy,
5617c6cd 11327 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 11328 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11329 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11330 },
2a519311
JB		 11331 {
11332 .cmd = NL80211_CMD_TRIGGER_SCAN,
11333 .doit = nl80211_trigger_scan,
11334 .policy = nl80211_policy,
5617c6cd 11335 .flags = GENL_UNS_ADMIN_PERM,
fd014284 11336 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11337 NL80211_FLAG_NEED_RTNL,
2a519311 11338 },
91d3ab46
VK		 11339 {
11340 .cmd = NL80211_CMD_ABORT_SCAN,
11341 .doit = nl80211_abort_scan,
11342 .policy = nl80211_policy,
5617c6cd 11343 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 11344 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11345 NL80211_FLAG_NEED_RTNL,
11346 },
2a519311
JB		 11347 {
11348 .cmd = NL80211_CMD_GET_SCAN,
11349 .policy = nl80211_policy,
11350 .dumpit = nl80211_dump_scan,
11351 },
807f8a8c
LC		 11352 {
11353 .cmd = NL80211_CMD_START_SCHED_SCAN,
11354 .doit = nl80211_start_sched_scan,
11355 .policy = nl80211_policy,
5617c6cd 11356 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11358 NL80211_FLAG_NEED_RTNL,
11359 },
11360 {
11361 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11362 .doit = nl80211_stop_sched_scan,
11363 .policy = nl80211_policy,
5617c6cd 11364 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11365 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11366 NL80211_FLAG_NEED_RTNL,
11367 },
636a5d36
JM		 11368 {
11369 .cmd = NL80211_CMD_AUTHENTICATE,
11370 .doit = nl80211_authenticate,
11371 .policy = nl80211_policy,
5617c6cd 11372 .flags = GENL_UNS_ADMIN_PERM,
41265714 11373 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11374 NL80211_FLAG_NEED_RTNL |
11375 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11376 },
11377 {
11378 .cmd = NL80211_CMD_ASSOCIATE,
11379 .doit = nl80211_associate,
11380 .policy = nl80211_policy,
5617c6cd 11381 .flags = GENL_UNS_ADMIN_PERM,
41265714 11382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11383 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11384 },
11385 {
11386 .cmd = NL80211_CMD_DEAUTHENTICATE,
11387 .doit = nl80211_deauthenticate,
11388 .policy = nl80211_policy,
5617c6cd 11389 .flags = GENL_UNS_ADMIN_PERM,
41265714 11390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11391 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11392 },
11393 {
11394 .cmd = NL80211_CMD_DISASSOCIATE,
11395 .doit = nl80211_disassociate,
11396 .policy = nl80211_policy,
5617c6cd 11397 .flags = GENL_UNS_ADMIN_PERM,
41265714 11398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11399 NL80211_FLAG_NEED_RTNL,
636a5d36 11400 },
04a773ad
JB		 11401 {
11402 .cmd = NL80211_CMD_JOIN_IBSS,
11403 .doit = nl80211_join_ibss,
11404 .policy = nl80211_policy,
5617c6cd 11405 .flags = GENL_UNS_ADMIN_PERM,
41265714 11406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11407 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11408 },
11409 {
11410 .cmd = NL80211_CMD_LEAVE_IBSS,
11411 .doit = nl80211_leave_ibss,
11412 .policy = nl80211_policy,
5617c6cd 11413 .flags = GENL_UNS_ADMIN_PERM,
41265714 11414 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11415 NL80211_FLAG_NEED_RTNL,
04a773ad 11416 },
aff89a9b
JB		 11417#ifdef CONFIG_NL80211_TESTMODE
11418 {
11419 .cmd = NL80211_CMD_TESTMODE,
11420 .doit = nl80211_testmode_do,
71063f0e 11421 .dumpit = nl80211_testmode_dump,
aff89a9b 11422 .policy = nl80211_policy,
5617c6cd 11423 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11424 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11425 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11426 },
11427#endif
b23aa676
SO		 11428 {
11429 .cmd = NL80211_CMD_CONNECT,
11430 .doit = nl80211_connect,
11431 .policy = nl80211_policy,
5617c6cd 11432 .flags = GENL_UNS_ADMIN_PERM,
41265714 11433 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11434 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11435 },
11436 {
11437 .cmd = NL80211_CMD_DISCONNECT,
11438 .doit = nl80211_disconnect,
11439 .policy = nl80211_policy,
5617c6cd 11440 .flags = GENL_UNS_ADMIN_PERM,
41265714 11441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11442 NL80211_FLAG_NEED_RTNL,
b23aa676 11443 },
463d0183
JB		 11444 {
11445 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11446 .doit = nl80211_wiphy_netns,
11447 .policy = nl80211_policy,
5617c6cd 11448 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11449 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11450 NL80211_FLAG_NEED_RTNL,
463d0183 11451 },
61fa713c
HS		 11452 {
11453 .cmd = NL80211_CMD_GET_SURVEY,
11454 .policy = nl80211_policy,
11455 .dumpit = nl80211_dump_survey,
11456 },
67fbb16b
SO		 11457 {
11458 .cmd = NL80211_CMD_SET_PMKSA,
11459 .doit = nl80211_setdel_pmksa,
11460 .policy = nl80211_policy,
5617c6cd 11461 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11462 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11463 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11464 },
11465 {
11466 .cmd = NL80211_CMD_DEL_PMKSA,
11467 .doit = nl80211_setdel_pmksa,
11468 .policy = nl80211_policy,
5617c6cd 11469 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11470 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11471 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11472 },
11473 {
11474 .cmd = NL80211_CMD_FLUSH_PMKSA,
11475 .doit = nl80211_flush_pmksa,
11476 .policy = nl80211_policy,
5617c6cd 11477 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11478 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11479 NL80211_FLAG_NEED_RTNL,
67fbb16b 11480 },
9588bbd5
JM		 11481 {
11482 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11483 .doit = nl80211_remain_on_channel,
11484 .policy = nl80211_policy,
5617c6cd 11485 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11486 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11487 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11488 },
11489 {
11490 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11491 .doit = nl80211_cancel_remain_on_channel,
11492 .policy = nl80211_policy,
5617c6cd 11493 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11494 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11495 NL80211_FLAG_NEED_RTNL,
9588bbd5 11496 },
13ae75b1
JM		 11497 {
11498 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11499 .doit = nl80211_set_tx_bitrate_mask,
11500 .policy = nl80211_policy,
5617c6cd 11501 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11502 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11503 NL80211_FLAG_NEED_RTNL,
13ae75b1 11504 },
026331c4 11505 {
2e161f78
JB		 11506 .cmd = NL80211_CMD_REGISTER_FRAME,
11507 .doit = nl80211_register_mgmt,
026331c4 11508 .policy = nl80211_policy,
5617c6cd 11509 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11510 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11511 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11512 },
11513 {
2e161f78
JB		 11514 .cmd = NL80211_CMD_FRAME,
11515 .doit = nl80211_tx_mgmt,
026331c4 11516 .policy = nl80211_policy,
5617c6cd 11517 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11518 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11519 NL80211_FLAG_NEED_RTNL,
11520 },
11521 {
11522 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11523 .doit = nl80211_tx_mgmt_cancel_wait,
11524 .policy = nl80211_policy,
5617c6cd 11525 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11526 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11527 NL80211_FLAG_NEED_RTNL,
026331c4 11528 },
ffb9eb3d
KV		 11529 {
11530 .cmd = NL80211_CMD_SET_POWER_SAVE,
11531 .doit = nl80211_set_power_save,
11532 .policy = nl80211_policy,
5617c6cd 11533 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11534 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11535 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11536 },
11537 {
11538 .cmd = NL80211_CMD_GET_POWER_SAVE,
11539 .doit = nl80211_get_power_save,
11540 .policy = nl80211_policy,
11541 /* can be retrieved by unprivileged users */
4c476991
JB		 11542 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11543 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11544 },
d6dc1a38
JO		 11545 {
11546 .cmd = NL80211_CMD_SET_CQM,
11547 .doit = nl80211_set_cqm,
11548 .policy = nl80211_policy,
5617c6cd 11549 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11550 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11551 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11552 },
f444de05
JB		 11553 {
11554 .cmd = NL80211_CMD_SET_CHANNEL,
11555 .doit = nl80211_set_channel,
11556 .policy = nl80211_policy,
5617c6cd 11557 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11558 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11559 NL80211_FLAG_NEED_RTNL,
f444de05 11560 },
e8347eba
BJ		 11561 {
11562 .cmd = NL80211_CMD_SET_WDS_PEER,
11563 .doit = nl80211_set_wds_peer,
11564 .policy = nl80211_policy,
5617c6cd 11565 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 11566 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11567 NL80211_FLAG_NEED_RTNL,
e8347eba 11568 },
29cbe68c
JB		 11569 {
11570 .cmd = NL80211_CMD_JOIN_MESH,
11571 .doit = nl80211_join_mesh,
11572 .policy = nl80211_policy,
5617c6cd 11573 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11574 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11575 NL80211_FLAG_NEED_RTNL,
11576 },
11577 {
11578 .cmd = NL80211_CMD_LEAVE_MESH,
11579 .doit = nl80211_leave_mesh,
11580 .policy = nl80211_policy,
5617c6cd 11581 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11583 NL80211_FLAG_NEED_RTNL,
11584 },
6e0bd6c3
RL		 11585 {
11586 .cmd = NL80211_CMD_JOIN_OCB,
11587 .doit = nl80211_join_ocb,
11588 .policy = nl80211_policy,
5617c6cd 11589 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11591 NL80211_FLAG_NEED_RTNL,
11592 },
11593 {
11594 .cmd = NL80211_CMD_LEAVE_OCB,
11595 .doit = nl80211_leave_ocb,
11596 .policy = nl80211_policy,
5617c6cd 11597 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11598 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11599 NL80211_FLAG_NEED_RTNL,
11600 },
dfb89c56 11601#ifdef CONFIG_PM
ff1b6e69
JB		 11602 {
11603 .cmd = NL80211_CMD_GET_WOWLAN,
11604 .doit = nl80211_get_wowlan,
11605 .policy = nl80211_policy,
11606 /* can be retrieved by unprivileged users */
11607 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11608 NL80211_FLAG_NEED_RTNL,
11609 },
11610 {
11611 .cmd = NL80211_CMD_SET_WOWLAN,
11612 .doit = nl80211_set_wowlan,
11613 .policy = nl80211_policy,
5617c6cd 11614 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 11615 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11616 NL80211_FLAG_NEED_RTNL,
11617 },
dfb89c56 11618#endif
e5497d76
JB		 11619 {
11620 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11621 .doit = nl80211_set_rekey_data,
11622 .policy = nl80211_policy,
5617c6cd 11623 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 11624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11625 NL80211_FLAG_NEED_RTNL |
11626 NL80211_FLAG_CLEAR_SKB,
e5497d76 11627 },
109086ce
AN		 11628 {
11629 .cmd = NL80211_CMD_TDLS_MGMT,
11630 .doit = nl80211_tdls_mgmt,
11631 .policy = nl80211_policy,
5617c6cd 11632 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11634 NL80211_FLAG_NEED_RTNL,
11635 },
11636 {
11637 .cmd = NL80211_CMD_TDLS_OPER,
11638 .doit = nl80211_tdls_oper,
11639 .policy = nl80211_policy,
5617c6cd 11640 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11642 NL80211_FLAG_NEED_RTNL,
11643 },
28946da7
JB		 11644 {
11645 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11646 .doit = nl80211_register_unexpected_frame,
11647 .policy = nl80211_policy,
5617c6cd 11648 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 11649 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11650 NL80211_FLAG_NEED_RTNL,
11651 },
7f6cf311
JB		 11652 {
11653 .cmd = NL80211_CMD_PROBE_CLIENT,
11654 .doit = nl80211_probe_client,
11655 .policy = nl80211_policy,
5617c6cd 11656 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11658 NL80211_FLAG_NEED_RTNL,
11659 },
5e760230
JB		 11660 {
11661 .cmd = NL80211_CMD_REGISTER_BEACONS,
11662 .doit = nl80211_register_beacons,
11663 .policy = nl80211_policy,
5617c6cd 11664 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 11665 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11666 NL80211_FLAG_NEED_RTNL,
11667 },
1d9d9213
SW		 11668 {
11669 .cmd = NL80211_CMD_SET_NOACK_MAP,
11670 .doit = nl80211_set_noack_map,
11671 .policy = nl80211_policy,
5617c6cd 11672 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 11673 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11674 NL80211_FLAG_NEED_RTNL,
11675 },
98104fde
JB		 11676 {
11677 .cmd = NL80211_CMD_START_P2P_DEVICE,
11678 .doit = nl80211_start_p2p_device,
11679 .policy = nl80211_policy,
5617c6cd 11680 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11681 .internal_flags = NL80211_FLAG_NEED_WDEV |
11682 NL80211_FLAG_NEED_RTNL,
11683 },
11684 {
11685 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11686 .doit = nl80211_stop_p2p_device,
11687 .policy = nl80211_policy,
5617c6cd 11688 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11689 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11690 NL80211_FLAG_NEED_RTNL,
11691 },
f4e583c8
AQ		 11692 {
11693 .cmd = NL80211_CMD_SET_MCAST_RATE,
11694 .doit = nl80211_set_mcast_rate,
77765eaf 11695 .policy = nl80211_policy,
5617c6cd 11696 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 11697 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11698 NL80211_FLAG_NEED_RTNL,
11699 },
11700 {
11701 .cmd = NL80211_CMD_SET_MAC_ACL,
11702 .doit = nl80211_set_mac_acl,
f4e583c8 11703 .policy = nl80211_policy,
5617c6cd 11704 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 11705 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11706 NL80211_FLAG_NEED_RTNL,
11707 },
04f39047
SW		 11708 {
11709 .cmd = NL80211_CMD_RADAR_DETECT,
11710 .doit = nl80211_start_radar_detection,
11711 .policy = nl80211_policy,
5617c6cd 11712 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 11713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11714 NL80211_FLAG_NEED_RTNL,
11715 },
3713b4e3
JB		 11716 {
11717 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11718 .doit = nl80211_get_protocol_features,
11719 .policy = nl80211_policy,
11720 },
355199e0
JM		 11721 {
11722 .cmd = NL80211_CMD_UPDATE_FT_IES,
11723 .doit = nl80211_update_ft_ies,
11724 .policy = nl80211_policy,
5617c6cd 11725 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 11726 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11727 NL80211_FLAG_NEED_RTNL,
11728 },
5de17984
AS		 11729 {
11730 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11731 .doit = nl80211_crit_protocol_start,
11732 .policy = nl80211_policy,
5617c6cd 11733 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11734 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11735 NL80211_FLAG_NEED_RTNL,
11736 },
11737 {
11738 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11739 .doit = nl80211_crit_protocol_stop,
11740 .policy = nl80211_policy,
5617c6cd 11741 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11742 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11743 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11744 },
11745 {
11746 .cmd = NL80211_CMD_GET_COALESCE,
11747 .doit = nl80211_get_coalesce,
11748 .policy = nl80211_policy,
11749 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11750 NL80211_FLAG_NEED_RTNL,
11751 },
11752 {
11753 .cmd = NL80211_CMD_SET_COALESCE,
11754 .doit = nl80211_set_coalesce,
11755 .policy = nl80211_policy,
5617c6cd 11756 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 11757 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11758 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11759 },
11760 {
11761 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11762 .doit = nl80211_channel_switch,
11763 .policy = nl80211_policy,
5617c6cd 11764 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 11765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11766 NL80211_FLAG_NEED_RTNL,
11767 },
ad7e718c
JB		 11768 {
11769 .cmd = NL80211_CMD_VENDOR,
11770 .doit = nl80211_vendor_cmd,
7bdbe400 11771 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 11772 .policy = nl80211_policy,
5617c6cd 11773 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 11774 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11775 NL80211_FLAG_NEED_RTNL,
11776 },
fa9ffc74
KP		 11777 {
11778 .cmd = NL80211_CMD_SET_QOS_MAP,
11779 .doit = nl80211_set_qos_map,
11780 .policy = nl80211_policy,
5617c6cd 11781 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 11782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11783 NL80211_FLAG_NEED_RTNL,
11784 },
960d01ac
JB		 11785 {
11786 .cmd = NL80211_CMD_ADD_TX_TS,
11787 .doit = nl80211_add_tx_ts,
11788 .policy = nl80211_policy,
5617c6cd 11789 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11790 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11791 NL80211_FLAG_NEED_RTNL,
11792 },
11793 {
11794 .cmd = NL80211_CMD_DEL_TX_TS,
11795 .doit = nl80211_del_tx_ts,
11796 .policy = nl80211_policy,
5617c6cd 11797 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11798 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11799 NL80211_FLAG_NEED_RTNL,
11800 },
1057d35e
AN		 11801 {
11802 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11803 .doit = nl80211_tdls_channel_switch,
11804 .policy = nl80211_policy,
5617c6cd 11805 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11806 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11807 NL80211_FLAG_NEED_RTNL,
11808 },
11809 {
11810 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11811 .doit = nl80211_tdls_cancel_channel_switch,
11812 .policy = nl80211_policy,
5617c6cd 11813 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11814 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11815 NL80211_FLAG_NEED_RTNL,
11816 },
55682965 11817};
9588bbd5 11818
55682965
JB		 11819/* notification functions */
11820
3bb20556
JB		 11821void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11822 enum nl80211_commands cmd)
55682965
JB		 11823{
11824 struct sk_buff *msg;
86e8cf98 11825 struct nl80211_dump_wiphy_state state = {};
55682965 11826
3bb20556
JB		 11827 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11828 cmd != NL80211_CMD_DEL_WIPHY);
11829
fd2120ca 11830 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11831 if (!msg)
11832 return;
11833
3bb20556 11834 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11835 nlmsg_free(msg);
11836 return;
11837 }
11838
68eb5503 11839 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11840 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11841}
11842
896ff063
DK		 11843void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
11844 struct wireless_dev *wdev,
11845 enum nl80211_commands cmd)
11846{
11847 struct sk_buff *msg;
11848
11849 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
11850 cmd != NL80211_CMD_DEL_INTERFACE);
11851
11852 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11853 if (!msg)
11854 return;
11855
11856 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
11857 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
11858 nlmsg_free(msg);
11859 return;
11860 }
11861
11862 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11863 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11864}
11865
362a415d
JB		 11866static int nl80211_add_scan_req(struct sk_buff *msg,
11867 struct cfg80211_registered_device *rdev)
11868{
11869 struct cfg80211_scan_request *req = rdev->scan_req;
11870 struct nlattr *nest;
11871 int i;
11872
11873 if (WARN_ON(!req))
11874 return 0;
11875
11876 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11877 if (!nest)
11878 goto nla_put_failure;
9360ffd1
DM		 11879 for (i = 0; i < req->n_ssids; i++) {
11880 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11881 goto nla_put_failure;
11882 }
362a415d
JB		 11883 nla_nest_end(msg, nest);
11884
11885 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11886 if (!nest)
11887 goto nla_put_failure;
9360ffd1
DM		 11888 for (i = 0; i < req->n_channels; i++) {
11889 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11890 goto nla_put_failure;
11891 }
362a415d
JB		 11892 nla_nest_end(msg, nest);
11893
9360ffd1
DM		 11894 if (req->ie &&
11895 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11896 goto nla_put_failure;
362a415d 11897
ae917c9f
JB		 11898 if (req->flags &&
11899 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11900 goto nla_put_failure;
ed473771 11901
1d76250b
AS		 11902 if (req->info.scan_start_tsf &&
11903 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
11904 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
11905 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
11906 req->info.tsf_bssid)))
11907 goto nla_put_failure;
11908
362a415d
JB		 11909 return 0;
11910 nla_put_failure:
11911 return -ENOBUFS;
11912}
11913
a538e2d5
JB		 11914static int nl80211_send_scan_msg(struct sk_buff *msg,
11915 struct cfg80211_registered_device *rdev,
fd014284 11916 struct wireless_dev *wdev,
15e47304 11917 u32 portid, u32 seq, int flags,
a538e2d5 11918 u32 cmd)
2a519311
JB		 11919{
11920 void *hdr;
11921
15e47304 11922 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11923 if (!hdr)
11924 return -1;
11925
9360ffd1 11926 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11927 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11928 wdev->netdev->ifindex)) ||
2dad624e
ND		 11929 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11930 NL80211_ATTR_PAD))
9360ffd1 11931 goto nla_put_failure;
2a519311 11932
362a415d
JB		 11933 /* ignore errors and send incomplete event anyway */
11934 nl80211_add_scan_req(msg, rdev);
2a519311 11935
053c095a
JB		 11936 genlmsg_end(msg, hdr);
11937 return 0;
2a519311
JB		 11938
11939 nla_put_failure:
11940 genlmsg_cancel(msg, hdr);
11941 return -EMSGSIZE;
11942}
11943
807f8a8c
LC		 11944static int
11945nl80211_send_sched_scan_msg(struct sk_buff *msg,
11946 struct cfg80211_registered_device *rdev,
11947 struct net_device *netdev,
15e47304 11948 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11949{
11950 void *hdr;
11951
15e47304 11952 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11953 if (!hdr)
11954 return -1;
11955
9360ffd1
DM		 11956 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11957 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11958 goto nla_put_failure;
807f8a8c 11959
053c095a
JB		 11960 genlmsg_end(msg, hdr);
11961 return 0;
807f8a8c
LC		 11962
11963 nla_put_failure:
11964 genlmsg_cancel(msg, hdr);
11965 return -EMSGSIZE;
11966}
11967
a538e2d5 11968void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11969 struct wireless_dev *wdev)
a538e2d5
JB		 11970{
11971 struct sk_buff *msg;
11972
58050fce 11973 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11974 if (!msg)
11975 return;
11976
fd014284 11977 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11978 NL80211_CMD_TRIGGER_SCAN) < 0) {
11979 nlmsg_free(msg);
11980 return;
11981 }
11982
68eb5503 11983 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11984 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11985}
11986
f9d15d16
JB		 11987struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11988 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11989{
11990 struct sk_buff *msg;
11991
fd2120ca 11992 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11993 if (!msg)
f9d15d16 11994 return NULL;
2a519311 11995
fd014284 11996 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11997 aborted ? NL80211_CMD_SCAN_ABORTED :
11998 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11999 nlmsg_free(msg);
f9d15d16 12000 return NULL;
2a519311
JB		 12001 }
12002
f9d15d16 12003 return msg;
2a519311
JB		 12004}
12005
f9d15d16
JB		 12006void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12007 struct sk_buff *msg)
2a519311 12008{
2a519311
JB		 12009 if (!msg)
12010 return;
12011
68eb5503 12012 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12013 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 12014}
12015
807f8a8c
LC		 12016void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12017 struct net_device *netdev)
12018{
12019 struct sk_buff *msg;
12020
12021 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12022 if (!msg)
12023 return;
12024
12025 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12026 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12027 nlmsg_free(msg);
12028 return;
12029 }
12030
68eb5503 12031 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12032 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12033}
12034
12035void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12036 struct net_device *netdev, u32 cmd)
12037{
12038 struct sk_buff *msg;
12039
58050fce 12040 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 12041 if (!msg)
12042 return;
12043
12044 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12045 nlmsg_free(msg);
12046 return;
12047 }
12048
68eb5503 12049 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12050 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12051}
12052
b0d7aa59
JD		 12053static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12054 struct regulatory_request *request)
73d54c9e 12055{
73d54c9e 12056 /* Userspace can always count this one always being set */
9360ffd1
DM		 12057 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12058 goto nla_put_failure;
12059
12060 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12061 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12062 NL80211_REGDOM_TYPE_WORLD))
12063 goto nla_put_failure;
12064 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12065 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12066 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12067 goto nla_put_failure;
12068 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12069 request->intersect) {
12070 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12071 NL80211_REGDOM_TYPE_INTERSECTION))
12072 goto nla_put_failure;
12073 } else {
12074 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12075 NL80211_REGDOM_TYPE_COUNTRY) ||
12076 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12077 request->alpha2))
12078 goto nla_put_failure;
12079 }
12080
ad30ca2c
AN		 12081 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12082 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12083
12084 if (wiphy &&
12085 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12086 goto nla_put_failure;
1bdd716c
AN		 12087
12088 if (wiphy &&
12089 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12090 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12091 goto nla_put_failure;
ad30ca2c 12092 }
73d54c9e 12093
b0d7aa59
JD		 12094 return true;
12095
12096nla_put_failure:
12097 return false;
12098}
12099
12100/*
12101 * This can happen on global regulatory changes or device specific settings
12102 * based on custom regulatory domains.
12103 */
12104void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12105 struct regulatory_request *request)
12106{
12107 struct sk_buff *msg;
12108 void *hdr;
12109
12110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12111 if (!msg)
12112 return;
12113
12114 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12115 if (!hdr) {
12116 nlmsg_free(msg);
12117 return;
12118 }
12119
12120 if (nl80211_reg_change_event_fill(msg, request) == false)
12121 goto nla_put_failure;
12122
3b7b72ee 12123 genlmsg_end(msg, hdr);
73d54c9e 12124
bc43b28c 12125 rcu_read_lock();
68eb5503 12126 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12127 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 12128 rcu_read_unlock();
73d54c9e
LR		 12129
12130 return;
12131
12132nla_put_failure:
12133 genlmsg_cancel(msg, hdr);
12134 nlmsg_free(msg);
12135}
12136
6039f6d2
JM		 12137static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12138 struct net_device *netdev,
12139 const u8 *buf, size_t len,
b0b6aa2c
EP		 12140 enum nl80211_commands cmd, gfp_t gfp,
12141 int uapsd_queues)
6039f6d2
JM		 12142{
12143 struct sk_buff *msg;
12144 void *hdr;
12145
e6d6e342 12146 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 12147 if (!msg)
12148 return;
12149
12150 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12151 if (!hdr) {
12152 nlmsg_free(msg);
12153 return;
12154 }
12155
9360ffd1
DM		 12156 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12157 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12158 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12159 goto nla_put_failure;
6039f6d2 12160
b0b6aa2c
EP		 12161 if (uapsd_queues >= 0) {
12162 struct nlattr *nla_wmm =
12163 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12164 if (!nla_wmm)
12165 goto nla_put_failure;
12166
12167 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12168 uapsd_queues))
12169 goto nla_put_failure;
12170
12171 nla_nest_end(msg, nla_wmm);
12172 }
12173
3b7b72ee 12174 genlmsg_end(msg, hdr);
6039f6d2 12175
68eb5503 12176 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12177 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12178 return;
12179
12180 nla_put_failure:
12181 genlmsg_cancel(msg, hdr);
12182 nlmsg_free(msg);
12183}
12184
12185void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12186 struct net_device *netdev, const u8 *buf,
12187 size_t len, gfp_t gfp)
6039f6d2
JM		 12188{
12189 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12190 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12191}
12192
12193void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12194 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12195 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12196{
e6d6e342 12197 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12198 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12199}
12200
53b46b84 12201void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12202 struct net_device *netdev, const u8 *buf,
12203 size_t len, gfp_t gfp)
6039f6d2
JM		 12204{
12205 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12206 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12207}
12208
53b46b84
JM		 12209void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12210 struct net_device *netdev, const u8 *buf,
e6d6e342 12211 size_t len, gfp_t gfp)
6039f6d2
JM		 12212{
12213 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12214 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12215}
12216
6ff57cf8
JB		 12217void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12218 size_t len)
cf4e594e 12219{
947add36
JB		 12220 struct wireless_dev *wdev = dev->ieee80211_ptr;
12221 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12222 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12223 const struct ieee80211_mgmt *mgmt = (void *)buf;
12224 u32 cmd;
947add36 12225
6ff57cf8
JB		 12226 if (WARN_ON(len < 2))
12227 return;
cf4e594e 12228
6ff57cf8
JB		 12229 if (ieee80211_is_deauth(mgmt->frame_control))
12230 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12231 else
12232 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12233
6ff57cf8 12234 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12235 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12236}
6ff57cf8 12237EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12238
1b06bb40
LR		 12239static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12240 struct net_device *netdev, int cmd,
e6d6e342 12241 const u8 *addr, gfp_t gfp)
1965c853
JM		 12242{
12243 struct sk_buff *msg;
12244 void *hdr;
12245
e6d6e342 12246 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12247 if (!msg)
12248 return;
12249
12250 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12251 if (!hdr) {
12252 nlmsg_free(msg);
12253 return;
12254 }
12255
9360ffd1
DM		 12256 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12257 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12258 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12259 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12260 goto nla_put_failure;
1965c853 12261
3b7b72ee 12262 genlmsg_end(msg, hdr);
1965c853 12263
68eb5503 12264 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12265 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12266 return;
12267
12268 nla_put_failure:
12269 genlmsg_cancel(msg, hdr);
12270 nlmsg_free(msg);
12271}
12272
12273void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12274 struct net_device *netdev, const u8 *addr,
12275 gfp_t gfp)
1965c853
JM		 12276{
12277 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12278 addr, gfp);
1965c853
JM		 12279}
12280
12281void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12282 struct net_device *netdev, const u8 *addr,
12283 gfp_t gfp)
1965c853 12284{
e6d6e342
JB		 12285 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12286 addr, gfp);
1965c853
JM		 12287}
12288
b23aa676
SO		 12289void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12290 struct net_device *netdev, const u8 *bssid,
12291 const u8 *req_ie, size_t req_ie_len,
12292 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 12293 int status, gfp_t gfp)
b23aa676
SO		 12294{
12295 struct sk_buff *msg;
12296 void *hdr;
12297
58050fce 12298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12299 if (!msg)
12300 return;
12301
12302 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12303 if (!hdr) {
12304 nlmsg_free(msg);
12305 return;
12306 }
12307
9360ffd1
DM		 12308 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12309 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12310 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 12311 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12312 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12313 status) ||
12314 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 12315 (req_ie &&
12316 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12317 (resp_ie &&
12318 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12319 goto nla_put_failure;
b23aa676 12320
3b7b72ee 12321 genlmsg_end(msg, hdr);
b23aa676 12322
68eb5503 12323 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12324 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12325 return;
12326
12327 nla_put_failure:
12328 genlmsg_cancel(msg, hdr);
12329 nlmsg_free(msg);
b23aa676
SO		 12330}
12331
12332void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12333 struct net_device *netdev, const u8 *bssid,
12334 const u8 *req_ie, size_t req_ie_len,
12335 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12336{
12337 struct sk_buff *msg;
12338 void *hdr;
12339
58050fce 12340 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12341 if (!msg)
12342 return;
12343
12344 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12345 if (!hdr) {
12346 nlmsg_free(msg);
12347 return;
12348 }
12349
9360ffd1
DM		 12350 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12351 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12352 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12353 (req_ie &&
12354 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12355 (resp_ie &&
12356 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12357 goto nla_put_failure;
b23aa676 12358
3b7b72ee 12359 genlmsg_end(msg, hdr);
b23aa676 12360
68eb5503 12361 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12362 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12363 return;
12364
12365 nla_put_failure:
12366 genlmsg_cancel(msg, hdr);
12367 nlmsg_free(msg);
b23aa676
SO		 12368}
12369
12370void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12371 struct net_device *netdev, u16 reason,
667503dd 12372 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12373{
12374 struct sk_buff *msg;
12375 void *hdr;
12376
58050fce 12377 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12378 if (!msg)
12379 return;
12380
12381 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12382 if (!hdr) {
12383 nlmsg_free(msg);
12384 return;
12385 }
12386
9360ffd1
DM		 12387 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12388 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12389 (from_ap && reason &&
12390 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12391 (from_ap &&
12392 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12393 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12394 goto nla_put_failure;
b23aa676 12395
3b7b72ee 12396 genlmsg_end(msg, hdr);
b23aa676 12397
68eb5503 12398 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12399 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12400 return;
12401
12402 nla_put_failure:
12403 genlmsg_cancel(msg, hdr);
12404 nlmsg_free(msg);
b23aa676
SO		 12405}
12406
04a773ad
JB		 12407void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12408 struct net_device *netdev, const u8 *bssid,
12409 gfp_t gfp)
12410{
12411 struct sk_buff *msg;
12412 void *hdr;
12413
fd2120ca 12414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12415 if (!msg)
12416 return;
12417
12418 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12419 if (!hdr) {
12420 nlmsg_free(msg);
12421 return;
12422 }
12423
9360ffd1
DM		 12424 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12425 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12426 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12427 goto nla_put_failure;
04a773ad 12428
3b7b72ee 12429 genlmsg_end(msg, hdr);
04a773ad 12430
68eb5503 12431 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12432 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12433 return;
12434
12435 nla_put_failure:
12436 genlmsg_cancel(msg, hdr);
12437 nlmsg_free(msg);
12438}
12439
947add36
JB		 12440void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12441 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12442{
947add36 12443 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12444 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12445 struct sk_buff *msg;
12446 void *hdr;
12447
947add36
JB		 12448 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12449 return;
12450
12451 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12452
c93b5e71
JC		 12453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12454 if (!msg)
12455 return;
12456
12457 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12458 if (!hdr) {
12459 nlmsg_free(msg);
12460 return;
12461 }
12462
9360ffd1 12463 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12464 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12465 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12466 (ie_len && ie &&
12467 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12468 goto nla_put_failure;
c93b5e71 12469
3b7b72ee 12470 genlmsg_end(msg, hdr);
c93b5e71 12471
68eb5503 12472 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12473 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12474 return;
12475
12476 nla_put_failure:
12477 genlmsg_cancel(msg, hdr);
12478 nlmsg_free(msg);
12479}
947add36 12480EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12481
a3b8b056
JM		 12482void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12483 struct net_device *netdev, const u8 *addr,
12484 enum nl80211_key_type key_type, int key_id,
e6d6e342 12485 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12486{
12487 struct sk_buff *msg;
12488 void *hdr;
12489
e6d6e342 12490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12491 if (!msg)
12492 return;
12493
12494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12495 if (!hdr) {
12496 nlmsg_free(msg);
12497 return;
12498 }
12499
9360ffd1
DM		 12500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12501 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12502 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12503 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12504 (key_id != -1 &&
12505 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12506 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12507 goto nla_put_failure;
a3b8b056 12508
3b7b72ee 12509 genlmsg_end(msg, hdr);
a3b8b056 12510
68eb5503 12511 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12512 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12513 return;
12514
12515 nla_put_failure:
12516 genlmsg_cancel(msg, hdr);
12517 nlmsg_free(msg);
12518}
12519
6bad8766
LR		 12520void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12521 struct ieee80211_channel *channel_before,
12522 struct ieee80211_channel *channel_after)
12523{
12524 struct sk_buff *msg;
12525 void *hdr;
12526 struct nlattr *nl_freq;
12527
fd2120ca 12528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12529 if (!msg)
12530 return;
12531
12532 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12533 if (!hdr) {
12534 nlmsg_free(msg);
12535 return;
12536 }
12537
12538 /*
12539 * Since we are applying the beacon hint to a wiphy we know its
12540 * wiphy_idx is valid
12541 */
9360ffd1
DM		 12542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12543 goto nla_put_failure;
6bad8766
LR		 12544
12545 /* Before */
12546 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12547 if (!nl_freq)
12548 goto nla_put_failure;
cdc89b97 12549 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12550 goto nla_put_failure;
12551 nla_nest_end(msg, nl_freq);
12552
12553 /* After */
12554 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12555 if (!nl_freq)
12556 goto nla_put_failure;
cdc89b97 12557 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12558 goto nla_put_failure;
12559 nla_nest_end(msg, nl_freq);
12560
3b7b72ee 12561 genlmsg_end(msg, hdr);
6bad8766 12562
463d0183 12563 rcu_read_lock();
68eb5503 12564 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12565 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12566 rcu_read_unlock();
6bad8766
LR		 12567
12568 return;
12569
12570nla_put_failure:
12571 genlmsg_cancel(msg, hdr);
12572 nlmsg_free(msg);
12573}
12574
9588bbd5
JM		 12575static void nl80211_send_remain_on_chan_event(
12576 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12577 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12578 struct ieee80211_channel *chan,
9588bbd5
JM		 12579 unsigned int duration, gfp_t gfp)
12580{
12581 struct sk_buff *msg;
12582 void *hdr;
12583
12584 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12585 if (!msg)
12586 return;
12587
12588 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12589 if (!hdr) {
12590 nlmsg_free(msg);
12591 return;
12592 }
12593
9360ffd1 12594 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12595 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12596 wdev->netdev->ifindex)) ||
2dad624e
ND		 12597 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12598 NL80211_ATTR_PAD) ||
9360ffd1 12599 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12600 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12601 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 12602 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12603 NL80211_ATTR_PAD))
9360ffd1 12604 goto nla_put_failure;
9588bbd5 12605
9360ffd1
DM		 12606 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12607 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12608 goto nla_put_failure;
9588bbd5 12609
3b7b72ee 12610 genlmsg_end(msg, hdr);
9588bbd5 12611
68eb5503 12612 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12613 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12614 return;
12615
12616 nla_put_failure:
12617 genlmsg_cancel(msg, hdr);
12618 nlmsg_free(msg);
12619}
12620
947add36
JB		 12621void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12622 struct ieee80211_channel *chan,
12623 unsigned int duration, gfp_t gfp)
9588bbd5 12624{
947add36 12625 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12626 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12627
12628 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12629 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12630 rdev, wdev, cookie, chan,
42d97a59 12631 duration, gfp);
9588bbd5 12632}
947add36 12633EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12634
947add36
JB		 12635void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12636 struct ieee80211_channel *chan,
12637 gfp_t gfp)
9588bbd5 12638{
947add36 12639 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12640 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12641
12642 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12643 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12644 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12645}
947add36 12646EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12647
947add36
JB		 12648void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12649 struct station_info *sinfo, gfp_t gfp)
98b62183 12650{
947add36 12651 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12652 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12653 struct sk_buff *msg;
12654
947add36
JB		 12655 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12656
58050fce 12657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12658 if (!msg)
12659 return;
12660
cf5ead82 12661 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12662 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12663 nlmsg_free(msg);
12664 return;
12665 }
12666
68eb5503 12667 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12668 NL80211_MCGRP_MLME, gfp);
98b62183 12669}
947add36 12670EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12671
cf5ead82
JB		 12672void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12673 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12674{
947add36 12675 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12676 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12677 struct sk_buff *msg;
cf5ead82
JB		 12678 struct station_info empty_sinfo = {};
12679
12680 if (!sinfo)
12681 sinfo = &empty_sinfo;
ec15e68b 12682
947add36
JB		 12683 trace_cfg80211_del_sta(dev, mac_addr);
12684
58050fce 12685 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12686 if (!msg)
12687 return;
12688
cf5ead82 12689 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12690 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12691 nlmsg_free(msg);
12692 return;
12693 }
12694
68eb5503 12695 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12696 NL80211_MCGRP_MLME, gfp);
ec15e68b 12697}
cf5ead82 12698EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12699
947add36
JB		 12700void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12701 enum nl80211_connect_failed_reason reason,
12702 gfp_t gfp)
ed44a951 12703{
947add36 12704 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12705 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12706 struct sk_buff *msg;
12707 void *hdr;
12708
12709 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12710 if (!msg)
12711 return;
12712
12713 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12714 if (!hdr) {
12715 nlmsg_free(msg);
12716 return;
12717 }
12718
12719 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12720 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12721 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12722 goto nla_put_failure;
12723
12724 genlmsg_end(msg, hdr);
12725
68eb5503 12726 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12727 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12728 return;
12729
12730 nla_put_failure:
12731 genlmsg_cancel(msg, hdr);
12732 nlmsg_free(msg);
12733}
947add36 12734EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12735
b92ab5d8
JB		 12736static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12737 const u8 *addr, gfp_t gfp)
28946da7
JB		 12738{
12739 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12740 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12741 struct sk_buff *msg;
12742 void *hdr;
15e47304 12743 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12744
15e47304 12745 if (!nlportid)
28946da7
JB		 12746 return false;
12747
12748 msg = nlmsg_new(100, gfp);
12749 if (!msg)
12750 return true;
12751
b92ab5d8 12752 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12753 if (!hdr) {
12754 nlmsg_free(msg);
12755 return true;
12756 }
12757
9360ffd1
DM		 12758 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12759 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12760 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12761 goto nla_put_failure;
28946da7 12762
9c90a9f6 12763 genlmsg_end(msg, hdr);
15e47304 12764 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12765 return true;
12766
12767 nla_put_failure:
12768 genlmsg_cancel(msg, hdr);
12769 nlmsg_free(msg);
12770 return true;
12771}
12772
947add36
JB		 12773bool cfg80211_rx_spurious_frame(struct net_device *dev,
12774 const u8 *addr, gfp_t gfp)
b92ab5d8 12775{
947add36
JB		 12776 struct wireless_dev *wdev = dev->ieee80211_ptr;
12777 bool ret;
12778
12779 trace_cfg80211_rx_spurious_frame(dev, addr);
12780
12781 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12782 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12783 trace_cfg80211_return_bool(false);
12784 return false;
12785 }
12786 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12787 addr, gfp);
12788 trace_cfg80211_return_bool(ret);
12789 return ret;
b92ab5d8 12790}
947add36 12791EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12792
947add36
JB		 12793bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12794 const u8 *addr, gfp_t gfp)
b92ab5d8 12795{
947add36
JB		 12796 struct wireless_dev *wdev = dev->ieee80211_ptr;
12797 bool ret;
12798
12799 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12800
12801 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12802 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12803 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12804 trace_cfg80211_return_bool(false);
12805 return false;
12806 }
12807 ret = __nl80211_unexpected_frame(dev,
12808 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12809 addr, gfp);
12810 trace_cfg80211_return_bool(ret);
12811 return ret;
b92ab5d8 12812}
947add36 12813EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12814
2e161f78 12815int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12816 struct wireless_dev *wdev, u32 nlportid,
804483e9 12817 int freq, int sig_dbm,
19504cf5 12818 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12819{
71bbc994 12820 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12821 struct sk_buff *msg;
12822 void *hdr;
026331c4
JM		 12823
12824 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12825 if (!msg)
12826 return -ENOMEM;
12827
2e161f78 12828 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12829 if (!hdr) {
12830 nlmsg_free(msg);
12831 return -ENOMEM;
12832 }
12833
9360ffd1 12834 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12835 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12836 netdev->ifindex)) ||
2dad624e
ND		 12837 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12838 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12839 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12840 (sig_dbm &&
12841 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12842 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12843 (flags &&
12844 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12845 goto nla_put_failure;
026331c4 12846
3b7b72ee 12847 genlmsg_end(msg, hdr);
026331c4 12848
15e47304 12849 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12850
12851 nla_put_failure:
12852 genlmsg_cancel(msg, hdr);
12853 nlmsg_free(msg);
12854 return -ENOBUFS;
12855}
12856
947add36
JB		 12857void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12858 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12859{
947add36 12860 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12861 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12862 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12863 struct sk_buff *msg;
12864 void *hdr;
12865
947add36
JB		 12866 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12867
026331c4
JM		 12868 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12869 if (!msg)
12870 return;
12871
2e161f78 12872 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12873 if (!hdr) {
12874 nlmsg_free(msg);
12875 return;
12876 }
12877
9360ffd1 12878 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12879 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12880 netdev->ifindex)) ||
2dad624e
ND		 12881 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12882 NL80211_ATTR_PAD) ||
9360ffd1 12883 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 12884 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12885 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12886 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12887 goto nla_put_failure;
026331c4 12888
3b7b72ee 12889 genlmsg_end(msg, hdr);
026331c4 12890
68eb5503 12891 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12892 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12893 return;
12894
12895 nla_put_failure:
12896 genlmsg_cancel(msg, hdr);
12897 nlmsg_free(msg);
12898}
947add36 12899EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12900
5b97f49d
JB		 12901static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12902 const char *mac, gfp_t gfp)
d6dc1a38 12903{
947add36 12904 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12905 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12906 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12907 void **cb;
947add36 12908
d6dc1a38 12909 if (!msg)
5b97f49d 12910 return NULL;
d6dc1a38 12911
5b97f49d
JB		 12912 cb = (void **)msg->cb;
12913
12914 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12915 if (!cb[0]) {
d6dc1a38 12916 nlmsg_free(msg);
5b97f49d 12917 return NULL;
d6dc1a38
JO		 12918 }
12919
9360ffd1 12920 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12921 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12922 goto nla_put_failure;
d6dc1a38 12923
5b97f49d 12924 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12925 goto nla_put_failure;
12926
5b97f49d
JB		 12927 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12928 if (!cb[1])
9360ffd1 12929 goto nla_put_failure;
d6dc1a38 12930
5b97f49d 12931 cb[2] = rdev;
d6dc1a38 12932
5b97f49d
JB		 12933 return msg;
12934 nla_put_failure:
12935 nlmsg_free(msg);
12936 return NULL;
12937}
12938
12939static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12940{
12941 void **cb = (void **)msg->cb;
12942 struct cfg80211_registered_device *rdev = cb[2];
12943
12944 nla_nest_end(msg, cb[1]);
12945 genlmsg_end(msg, cb[0]);
12946
12947 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12948
68eb5503 12949 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12950 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12951}
12952
12953void cfg80211_cqm_rssi_notify(struct net_device *dev,
12954 enum nl80211_cqm_rssi_threshold_event rssi_event,
12955 gfp_t gfp)
12956{
12957 struct sk_buff *msg;
12958
12959 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12960
98f03342
JB		 12961 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12962 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12963 return;
12964
5b97f49d
JB		 12965 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12966 if (!msg)
12967 return;
12968
12969 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12970 rssi_event))
12971 goto nla_put_failure;
12972
12973 cfg80211_send_cqm(msg, gfp);
12974
d6dc1a38
JO		 12975 return;
12976
12977 nla_put_failure:
d6dc1a38
JO		 12978 nlmsg_free(msg);
12979}
947add36 12980EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12981
5b97f49d
JB		 12982void cfg80211_cqm_txe_notify(struct net_device *dev,
12983 const u8 *peer, u32 num_packets,
12984 u32 rate, u32 intvl, gfp_t gfp)
12985{
12986 struct sk_buff *msg;
12987
12988 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12989 if (!msg)
12990 return;
12991
12992 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12993 goto nla_put_failure;
12994
12995 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12996 goto nla_put_failure;
12997
12998 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12999 goto nla_put_failure;
13000
13001 cfg80211_send_cqm(msg, gfp);
13002 return;
13003
13004 nla_put_failure:
13005 nlmsg_free(msg);
13006}
13007EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13008
13009void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13010 const u8 *peer, u32 num_packets, gfp_t gfp)
13011{
13012 struct sk_buff *msg;
13013
13014 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13015
13016 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13017 if (!msg)
13018 return;
13019
13020 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13021 goto nla_put_failure;
13022
13023 cfg80211_send_cqm(msg, gfp);
13024 return;
13025
13026 nla_put_failure:
13027 nlmsg_free(msg);
13028}
13029EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13030
98f03342
JB		 13031void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13032{
13033 struct sk_buff *msg;
13034
13035 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13036 if (!msg)
13037 return;
13038
13039 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13040 goto nla_put_failure;
13041
13042 cfg80211_send_cqm(msg, gfp);
13043 return;
13044
13045 nla_put_failure:
13046 nlmsg_free(msg);
13047}
13048EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13049
947add36
JB		 13050static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13051 struct net_device *netdev, const u8 *bssid,
13052 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13053{
13054 struct sk_buff *msg;
13055 struct nlattr *rekey_attr;
13056 void *hdr;
13057
58050fce 13058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13059 if (!msg)
13060 return;
13061
13062 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13063 if (!hdr) {
13064 nlmsg_free(msg);
13065 return;
13066 }
13067
9360ffd1
DM		 13068 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13069 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13070 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13071 goto nla_put_failure;
e5497d76
JB		 13072
13073 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13074 if (!rekey_attr)
13075 goto nla_put_failure;
13076
9360ffd1
DM		 13077 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13078 NL80211_REPLAY_CTR_LEN, replay_ctr))
13079 goto nla_put_failure;
e5497d76
JB		 13080
13081 nla_nest_end(msg, rekey_attr);
13082
3b7b72ee 13083 genlmsg_end(msg, hdr);
e5497d76 13084
68eb5503 13085 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13086 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 13087 return;
13088
13089 nla_put_failure:
13090 genlmsg_cancel(msg, hdr);
13091 nlmsg_free(msg);
13092}
13093
947add36
JB		 13094void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13095 const u8 *replay_ctr, gfp_t gfp)
13096{
13097 struct wireless_dev *wdev = dev->ieee80211_ptr;
13098 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13099 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13100
13101 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13102 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13103}
13104EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13105
13106static void
13107nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13108 struct net_device *netdev, int index,
13109 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 13110{
13111 struct sk_buff *msg;
13112 struct nlattr *attr;
13113 void *hdr;
13114
58050fce 13115 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 13116 if (!msg)
13117 return;
13118
13119 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13120 if (!hdr) {
13121 nlmsg_free(msg);
13122 return;
13123 }
13124
9360ffd1
DM		 13125 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13126 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13127 goto nla_put_failure;
c9df56b4
JM		 13128
13129 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13130 if (!attr)
13131 goto nla_put_failure;
13132
9360ffd1
DM		 13133 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13134 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13135 (preauth &&
13136 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13137 goto nla_put_failure;
c9df56b4
JM		 13138
13139 nla_nest_end(msg, attr);
13140
3b7b72ee 13141 genlmsg_end(msg, hdr);
c9df56b4 13142
68eb5503 13143 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13144 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 13145 return;
13146
13147 nla_put_failure:
13148 genlmsg_cancel(msg, hdr);
13149 nlmsg_free(msg);
13150}
13151
947add36
JB		 13152void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13153 const u8 *bssid, bool preauth, gfp_t gfp)
13154{
13155 struct wireless_dev *wdev = dev->ieee80211_ptr;
13156 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13157 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13158
13159 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13160 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13161}
13162EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13163
13164static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13165 struct net_device *netdev,
13166 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13167 gfp_t gfp,
13168 enum nl80211_commands notif,
13169 u8 count)
5314526b
TP		 13170{
13171 struct sk_buff *msg;
13172 void *hdr;
13173
58050fce 13174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13175 if (!msg)
13176 return;
13177
f8d7552e 13178 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13179 if (!hdr) {
13180 nlmsg_free(msg);
13181 return;
13182 }
13183
683b6d3b
JB		 13184 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13185 goto nla_put_failure;
13186
13187 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13188 goto nla_put_failure;
5314526b 13189
f8d7552e
LC		 13190 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13191 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13192 goto nla_put_failure;
13193
5314526b
TP		 13194 genlmsg_end(msg, hdr);
13195
68eb5503 13196 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13197 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13198 return;
13199
13200 nla_put_failure:
13201 genlmsg_cancel(msg, hdr);
13202 nlmsg_free(msg);
13203}
13204
947add36
JB		 13205void cfg80211_ch_switch_notify(struct net_device *dev,
13206 struct cfg80211_chan_def *chandef)
84f10708 13207{
947add36
JB		 13208 struct wireless_dev *wdev = dev->ieee80211_ptr;
13209 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13210 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13211
e487eaeb 13212 ASSERT_WDEV_LOCK(wdev);
947add36 13213
e487eaeb 13214 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13215
9e0e2961 13216 wdev->chandef = *chandef;
96f55f12 13217 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13218 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13219 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13220}
13221EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13222
f8d7552e
LC		 13223void cfg80211_ch_switch_started_notify(struct net_device *dev,
13224 struct cfg80211_chan_def *chandef,
13225 u8 count)
13226{
13227 struct wireless_dev *wdev = dev->ieee80211_ptr;
13228 struct wiphy *wiphy = wdev->wiphy;
13229 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13230
13231 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13232
13233 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13234 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13235}
13236EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13237
04f39047
SW		 13238void
13239nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13240 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13241 enum nl80211_radar_event event,
13242 struct net_device *netdev, gfp_t gfp)
13243{
13244 struct sk_buff *msg;
13245 void *hdr;
13246
13247 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13248 if (!msg)
13249 return;
13250
13251 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13252 if (!hdr) {
13253 nlmsg_free(msg);
13254 return;
13255 }
13256
13257 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13258 goto nla_put_failure;
13259
13260 /* NOP and radar events don't need a netdev parameter */
13261 if (netdev) {
13262 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13263
13264 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 13265 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13266 NL80211_ATTR_PAD))
04f39047
SW		 13267 goto nla_put_failure;
13268 }
13269
13270 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13271 goto nla_put_failure;
13272
13273 if (nl80211_send_chandef(msg, chandef))
13274 goto nla_put_failure;
13275
9c90a9f6 13276 genlmsg_end(msg, hdr);
04f39047 13277
68eb5503 13278 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13279 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13280 return;
13281
13282 nla_put_failure:
13283 genlmsg_cancel(msg, hdr);
13284 nlmsg_free(msg);
13285}
13286
7f6cf311
JB		 13287void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13288 u64 cookie, bool acked, gfp_t gfp)
13289{
13290 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13291 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13292 struct sk_buff *msg;
13293 void *hdr;
7f6cf311 13294
4ee3e063
BL		 13295 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13296
58050fce 13297 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13298
7f6cf311
JB		 13299 if (!msg)
13300 return;
13301
13302 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13303 if (!hdr) {
13304 nlmsg_free(msg);
13305 return;
13306 }
13307
9360ffd1
DM		 13308 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13309 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13310 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 13311 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13312 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13313 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13314 goto nla_put_failure;
7f6cf311 13315
9c90a9f6 13316 genlmsg_end(msg, hdr);
7f6cf311 13317
68eb5503 13318 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13319 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13320 return;
13321
13322 nla_put_failure:
13323 genlmsg_cancel(msg, hdr);
13324 nlmsg_free(msg);
13325}
13326EXPORT_SYMBOL(cfg80211_probe_status);
13327
5e760230
JB		 13328void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13329 const u8 *frame, size_t len,
37c73b5f 13330 int freq, int sig_dbm)
5e760230 13331{
f26cbf40 13332 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13333 struct sk_buff *msg;
13334 void *hdr;
37c73b5f 13335 struct cfg80211_beacon_registration *reg;
5e760230 13336
4ee3e063
BL		 13337 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13338
37c73b5f
BG		 13339 spin_lock_bh(&rdev->beacon_registrations_lock);
13340 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13341 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13342 if (!msg) {
13343 spin_unlock_bh(&rdev->beacon_registrations_lock);
13344 return;
13345 }
5e760230 13346
37c73b5f
BG		 13347 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13348 if (!hdr)
13349 goto nla_put_failure;
5e760230 13350
37c73b5f
BG		 13351 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13352 (freq &&
13353 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13354 (sig_dbm &&
13355 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13356 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13357 goto nla_put_failure;
5e760230 13358
37c73b5f 13359 genlmsg_end(msg, hdr);
5e760230 13360
37c73b5f
BG		 13361 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13362 }
13363 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13364 return;
13365
13366 nla_put_failure:
37c73b5f
BG		 13367 spin_unlock_bh(&rdev->beacon_registrations_lock);
13368 if (hdr)
13369 genlmsg_cancel(msg, hdr);
5e760230
JB		 13370 nlmsg_free(msg);
13371}
13372EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13373
cd8f7cb4 13374#ifdef CONFIG_PM
8cd4d456
LC		 13375static int cfg80211_net_detect_results(struct sk_buff *msg,
13376 struct cfg80211_wowlan_wakeup *wakeup)
13377{
13378 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13379 struct nlattr *nl_results, *nl_match, *nl_freqs;
13380 int i, j;
13381
13382 nl_results = nla_nest_start(
13383 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13384 if (!nl_results)
13385 return -EMSGSIZE;
13386
13387 for (i = 0; i < nd->n_matches; i++) {
13388 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13389
13390 nl_match = nla_nest_start(msg, i);
13391 if (!nl_match)
13392 break;
13393
13394 /* The SSID attribute is optional in nl80211, but for
13395 * simplicity reasons it's always present in the
13396 * cfg80211 structure. If a driver can't pass the
13397 * SSID, that needs to be changed. A zero length SSID
13398 * is still a valid SSID (wildcard), so it cannot be
13399 * used for this purpose.
13400 */
13401 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13402 match->ssid.ssid)) {
13403 nla_nest_cancel(msg, nl_match);
13404 goto out;
13405 }
13406
13407 if (match->n_channels) {
13408 nl_freqs = nla_nest_start(
13409 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13410 if (!nl_freqs) {
13411 nla_nest_cancel(msg, nl_match);
13412 goto out;
13413 }
13414
13415 for (j = 0; j < match->n_channels; j++) {
5528fae8 13416 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13417 nla_nest_cancel(msg, nl_freqs);
13418 nla_nest_cancel(msg, nl_match);
13419 goto out;
13420 }
13421 }
13422
13423 nla_nest_end(msg, nl_freqs);
13424 }
13425
13426 nla_nest_end(msg, nl_match);
13427 }
13428
13429out:
13430 nla_nest_end(msg, nl_results);
13431 return 0;
13432}
13433
cd8f7cb4
JB		 13434void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13435 struct cfg80211_wowlan_wakeup *wakeup,
13436 gfp_t gfp)
13437{
f26cbf40 13438 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13439 struct sk_buff *msg;
13440 void *hdr;
9c90a9f6 13441 int size = 200;
cd8f7cb4
JB		 13442
13443 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13444
13445 if (wakeup)
13446 size += wakeup->packet_present_len;
13447
13448 msg = nlmsg_new(size, gfp);
13449 if (!msg)
13450 return;
13451
13452 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13453 if (!hdr)
13454 goto free_msg;
13455
13456 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13457 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13458 NL80211_ATTR_PAD))
cd8f7cb4
JB		 13459 goto free_msg;
13460
13461 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13462 wdev->netdev->ifindex))
13463 goto free_msg;
13464
13465 if (wakeup) {
13466 struct nlattr *reasons;
13467
13468 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13469 if (!reasons)
13470 goto free_msg;
cd8f7cb4
JB		 13471
13472 if (wakeup->disconnect &&
13473 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13474 goto free_msg;
13475 if (wakeup->magic_pkt &&
13476 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13477 goto free_msg;
13478 if (wakeup->gtk_rekey_failure &&
13479 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13480 goto free_msg;
13481 if (wakeup->eap_identity_req &&
13482 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13483 goto free_msg;
13484 if (wakeup->four_way_handshake &&
13485 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13486 goto free_msg;
13487 if (wakeup->rfkill_release &&
13488 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13489 goto free_msg;
13490
13491 if (wakeup->pattern_idx >= 0 &&
13492 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13493 wakeup->pattern_idx))
13494 goto free_msg;
13495
ae917c9f
JB		 13496 if (wakeup->tcp_match &&
13497 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13498 goto free_msg;
2a0e047e 13499
ae917c9f
JB		 13500 if (wakeup->tcp_connlost &&
13501 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13502 goto free_msg;
2a0e047e 13503
ae917c9f
JB		 13504 if (wakeup->tcp_nomoretokens &&
13505 nla_put_flag(msg,
13506 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13507 goto free_msg;
2a0e047e 13508
cd8f7cb4
JB		 13509 if (wakeup->packet) {
13510 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13511 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13512
13513 if (!wakeup->packet_80211) {
13514 pkt_attr =
13515 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13516 len_attr =
13517 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13518 }
13519
13520 if (wakeup->packet_len &&
13521 nla_put_u32(msg, len_attr, wakeup->packet_len))
13522 goto free_msg;
13523
13524 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13525 wakeup->packet))
13526 goto free_msg;
13527 }
13528
8cd4d456
LC		 13529 if (wakeup->net_detect &&
13530 cfg80211_net_detect_results(msg, wakeup))
13531 goto free_msg;
13532
cd8f7cb4
JB		 13533 nla_nest_end(msg, reasons);
13534 }
13535
9c90a9f6 13536 genlmsg_end(msg, hdr);
cd8f7cb4 13537
68eb5503 13538 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13539 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13540 return;
13541
13542 free_msg:
13543 nlmsg_free(msg);
13544}
13545EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13546#endif
13547
3475b094
JM		 13548void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13549 enum nl80211_tdls_operation oper,
13550 u16 reason_code, gfp_t gfp)
13551{
13552 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13553 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13554 struct sk_buff *msg;
13555 void *hdr;
3475b094
JM		 13556
13557 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13558 reason_code);
13559
13560 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13561 if (!msg)
13562 return;
13563
13564 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13565 if (!hdr) {
13566 nlmsg_free(msg);
13567 return;
13568 }
13569
13570 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13571 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13572 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13573 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13574 (reason_code > 0 &&
13575 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13576 goto nla_put_failure;
13577
9c90a9f6 13578 genlmsg_end(msg, hdr);
3475b094 13579
68eb5503 13580 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13581 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13582 return;
13583
13584 nla_put_failure:
13585 genlmsg_cancel(msg, hdr);
13586 nlmsg_free(msg);
13587}
13588EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13589
026331c4
JM		 13590static int nl80211_netlink_notify(struct notifier_block * nb,
13591 unsigned long state,
13592 void *_notify)
13593{
13594 struct netlink_notify *notify = _notify;
13595 struct cfg80211_registered_device *rdev;
13596 struct wireless_dev *wdev;
37c73b5f 13597 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 13598
8f815cdd 13599 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 13600 return NOTIFY_DONE;
13601
13602 rcu_read_lock();
13603
5e760230 13604 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13605 bool schedule_destroy_work = false;
93a1e86c
JR		 13606 bool schedule_scan_stop = false;
13607 struct cfg80211_sched_scan_request *sched_scan_req =
13608 rcu_dereference(rdev->sched_scan_req);
13609
13610 if (sched_scan_req && notify->portid &&
13611 sched_scan_req->owner_nlportid == notify->portid)
13612 schedule_scan_stop = true;
78f22b6a 13613
53873f13 13614 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 13615 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13616
78f22b6a
JB		 13617 if (wdev->owner_nlportid == notify->portid)
13618 schedule_destroy_work = true;
13619 }
13620
37c73b5f
BG		 13621 spin_lock_bh(&rdev->beacon_registrations_lock);
13622 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13623 list) {
13624 if (reg->nlportid == notify->portid) {
13625 list_del(&reg->list);
13626 kfree(reg);
13627 break;
13628 }
13629 }
13630 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13631
13632 if (schedule_destroy_work) {
13633 struct cfg80211_iface_destroy *destroy;
13634
13635 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13636 if (destroy) {
13637 destroy->nlportid = notify->portid;
13638 spin_lock(&rdev->destroy_list_lock);
13639 list_add(&destroy->list, &rdev->destroy_list);
13640 spin_unlock(&rdev->destroy_list_lock);
13641 schedule_work(&rdev->destroy_work);
13642 }
93a1e86c
JR		 13643 } else if (schedule_scan_stop) {
13644 sched_scan_req->owner_nlportid = 0;
13645
13646 if (rdev->ops->sched_scan_stop &&
13647 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13648 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13649 }
5e760230 13650 }
026331c4
JM		 13651
13652 rcu_read_unlock();
13653
05050753
I		 13654 /*
13655 * It is possible that the user space process that is controlling the
13656 * indoor setting disappeared, so notify the regulatory core.
13657 */
13658 regulatory_netlink_notify(notify->portid);
6784c7db 13659 return NOTIFY_OK;
026331c4
JM		 13660}
13661
13662static struct notifier_block nl80211_netlink_notifier = {
13663 .notifier_call = nl80211_netlink_notify,
13664};
13665
355199e0
JM		 13666void cfg80211_ft_event(struct net_device *netdev,
13667 struct cfg80211_ft_event_params *ft_event)
13668{
13669 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13670 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13671 struct sk_buff *msg;
13672 void *hdr;
355199e0
JM		 13673
13674 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13675
13676 if (!ft_event->target_ap)
13677 return;
13678
13679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13680 if (!msg)
13681 return;
13682
13683 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13684 if (!hdr)
13685 goto out;
355199e0 13686
ae917c9f
JB		 13687 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13688 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13689 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13690 goto out;
355199e0 13691
ae917c9f
JB		 13692 if (ft_event->ies &&
13693 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13694 goto out;
13695 if (ft_event->ric_ies &&
13696 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13697 ft_event->ric_ies))
13698 goto out;
355199e0 13699
9c90a9f6 13700 genlmsg_end(msg, hdr);
355199e0 13701
68eb5503 13702 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13703 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13704 return;
13705 out:
13706 nlmsg_free(msg);
355199e0
JM		 13707}
13708EXPORT_SYMBOL(cfg80211_ft_event);
13709
5de17984
AS		 13710void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13711{
13712 struct cfg80211_registered_device *rdev;
13713 struct sk_buff *msg;
13714 void *hdr;
13715 u32 nlportid;
13716
f26cbf40 13717 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13718 if (!rdev->crit_proto_nlportid)
13719 return;
13720
13721 nlportid = rdev->crit_proto_nlportid;
13722 rdev->crit_proto_nlportid = 0;
13723
13724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13725 if (!msg)
13726 return;
13727
13728 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13729 if (!hdr)
13730 goto nla_put_failure;
13731
13732 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13733 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13734 NL80211_ATTR_PAD))
5de17984
AS		 13735 goto nla_put_failure;
13736
13737 genlmsg_end(msg, hdr);
13738
13739 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13740 return;
13741
13742 nla_put_failure:
13743 if (hdr)
13744 genlmsg_cancel(msg, hdr);
13745 nlmsg_free(msg);
5de17984
AS		 13746}
13747EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13748
348baf0e
JB		 13749void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13750{
13751 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13752 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13753 struct sk_buff *msg;
13754 void *hdr;
13755
13756 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13757 if (!msg)
13758 return;
13759
13760 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13761 if (!hdr)
13762 goto out;
13763
13764 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13765 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 13766 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13767 NL80211_ATTR_PAD))
348baf0e
JB		 13768 goto out;
13769
13770 genlmsg_end(msg, hdr);
13771
13772 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13773 NL80211_MCGRP_MLME, GFP_KERNEL);
13774 return;
13775 out:
13776 nlmsg_free(msg);
13777}
13778
55682965
JB		 13779/* initialisation/exit functions */
13780
13781int nl80211_init(void)
13782{
0d63cbb5 13783 int err;
55682965 13784
2a94fe48
JB		 13785 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13786 nl80211_mcgrps);
55682965
JB		 13787 if (err)
13788 return err;
13789
026331c4
JM		 13790 err = netlink_register_notifier(&nl80211_netlink_notifier);
13791 if (err)
13792 goto err_out;
13793
55682965
JB		 13794 return 0;
13795 err_out:
13796 genl_unregister_family(&nl80211_fam);
13797 return err;
13798}
13799
13800void nl80211_exit(void)
13801{
026331c4 13802 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13803 genl_unregister_family(&nl80211_fam);
13804}
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