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nl80211: Fix spelling
[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]);
7f2b8562 170 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 171 if (netdev) {
172 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 173 tmp = wiphy_to_rdev(
174 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 175 else
176 tmp = NULL;
177
7fee4778
JB		 178 /* not wireless device -- return error */
179 if (!tmp)
180 return ERR_PTR(-EINVAL);
181
182 /* mismatch -- return error */
183 if (rdev && tmp != rdev)
184 return ERR_PTR(-EINVAL);
185
186 rdev = tmp;
a9455408 187 }
a9455408 188 }
a9455408 189
4f7eff10
JB		 190 if (!rdev)
191 return ERR_PTR(-ENODEV);
a9455408 192
4f7eff10
JB		 193 if (netns != wiphy_net(&rdev->wiphy))
194 return ERR_PTR(-ENODEV);
195
196 return rdev;
a9455408
JB		 197}
198
199/*
200 * This function returns a pointer to the driver
201 * that the genl_info item that is passed refers to.
a9455408
JB		 202 *
203 * The result of this can be a PTR_ERR and hence must
204 * be checked with IS_ERR() for errors.
205 */
206static struct cfg80211_registered_device *
4f7eff10 207cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 208{
5fe231e8 209 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 210}
211
55682965 212/* policy for the attributes */
8cd4d456 213static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 214 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
215 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 216 .len = 20-1 },
31888487 217 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 218
72bdcf34 219 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 220 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 221 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
224
b9a5f8ca
JM		 225 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 229 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 230 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 231
232 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 235
e007b857
EP		 236 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
237 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 238
b9454e83 239 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 240 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
241 .len = WLAN_MAX_KEY_LEN },
242 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
243 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
244 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 245 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 246 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 247
248 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
249 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
252 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 254 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
255 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
256 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
258 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 259 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 260 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 261 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 262 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 263 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 264 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 265
b2e1b302
LR		 266 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
267 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
268
9f1ba906
JM		 269 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 272 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
273 .len = NL80211_MAX_SUPP_RATES },
50b12f59 274 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 275
24bdd9f4 276 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 277 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 278
6c739419 279 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 280
281 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
282 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
283 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 284 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 286
287 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_SSID_LEN },
289 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
290 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 291 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 292 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 293 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 294 [NL80211_ATTR_STA_FLAGS2] = {
295 .len = sizeof(struct nl80211_sta_flag_update),
296 },
3f77316c 297 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 298 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
299 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 300 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
301 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
302 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 303 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 304 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 305 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
306 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 307 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
308 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 309 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 310 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
311 .len = IEEE80211_MAX_DATA_LEN },
312 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 313 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 314 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 315 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 316 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 317 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 319 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 320 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
321 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 322 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 323 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 324 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 325 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 326 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 327 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 328 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 329 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 330 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 331 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
332 .len = IEEE80211_MAX_DATA_LEN },
333 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 335 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 336 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 337 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 338 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 343 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 344 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 345 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 347 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 348 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
350 .len = NL80211_HT_CAPABILITY_LEN
351 },
1d9d9213 352 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 353 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 354 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 355 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 356 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 357 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 358 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 359 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 360 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
361 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 362 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
363 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 364 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
365 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 366 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 367 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
368 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
369 .len = NL80211_VHT_CAPABILITY_LEN,
370 },
355199e0
JM		 371 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
372 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
373 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 374 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 375 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
376 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
377 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 378 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
379 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 380 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
381 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 382 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 383 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 384 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 387 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
388 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 389 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
390 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 391 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 392 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 393 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 394 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 395 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
396 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
397 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 398 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 399 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 400 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 401 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 402 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 403 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 404 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 405 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 406 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
55682965
JB		 407};
408
e31b8213 409/* policy for the key attributes */
b54452b0 410static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 411 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 412 [NL80211_KEY_IDX] = { .type = NLA_U8 },
413 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 414 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 415 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
416 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 417 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 418 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
419};
420
421/* policy for the key default flags */
422static const struct nla_policy
423nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
424 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
425 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 426};
427
ff1b6e69
JB		 428/* policy for WoWLAN attributes */
429static const struct nla_policy
430nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
431 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 435 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
436 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 439 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 440 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 441};
442
443static const struct nla_policy
444nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
445 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
446 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
447 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
448 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
449 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
450 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
451 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
452 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
453 },
454 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
455 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
456 },
457 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
458 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
459 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 460};
461
be29b99a
AK		 462/* policy for coalesce rule attributes */
463static const struct nla_policy
464nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
465 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
466 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
467 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
468};
469
e5497d76
JB		 470/* policy for GTK rekey offload attributes */
471static const struct nla_policy
472nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
473 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
474 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
475 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
476};
477
a1f1c21c
LC		 478static const struct nla_policy
479nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 480 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 481 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 482 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 483};
484
3b06d277
AS		 485static const struct nla_policy
486nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
487 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
488 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
489};
490
38de03d2
AS		 491static const struct nla_policy
492nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
493 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
494 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
495 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
496 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
497 },
498};
499
97990a06
JB		 500static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
501 struct netlink_callback *cb,
502 struct cfg80211_registered_device **rdev,
503 struct wireless_dev **wdev)
a043897a 504{
97990a06 505 int err;
a043897a 506
97990a06 507 rtnl_lock();
a043897a 508
97990a06
JB		 509 if (!cb->args[0]) {
510 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
511 nl80211_fam.attrbuf, nl80211_fam.maxattr,
512 nl80211_policy);
513 if (err)
514 goto out_unlock;
67748893 515
97990a06
JB		 516 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
517 nl80211_fam.attrbuf);
518 if (IS_ERR(*wdev)) {
519 err = PTR_ERR(*wdev);
520 goto out_unlock;
521 }
f26cbf40 522 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 523 /* 0 is the first index - add 1 to parse only once */
524 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 525 cb->args[1] = (*wdev)->identifier;
526 } else {
c319d50b
JB		 527 /* subtract the 1 again here */
528 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 529 struct wireless_dev *tmp;
67748893 530
97990a06
JB		 531 if (!wiphy) {
532 err = -ENODEV;
533 goto out_unlock;
534 }
f26cbf40 535 *rdev = wiphy_to_rdev(wiphy);
97990a06 536 *wdev = NULL;
67748893 537
53873f13 538 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 539 if (tmp->identifier == cb->args[1]) {
540 *wdev = tmp;
541 break;
542 }
543 }
67748893 544
97990a06
JB		 545 if (!*wdev) {
546 err = -ENODEV;
547 goto out_unlock;
548 }
67748893
JB		 549 }
550
67748893 551 return 0;
97990a06 552 out_unlock:
67748893
JB		 553 rtnl_unlock();
554 return err;
555}
556
97990a06 557static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 558{
67748893
JB		 559 rtnl_unlock();
560}
561
f4a11bb0
JB		 562/* IE validation */
563static bool is_valid_ie_attr(const struct nlattr *attr)
564{
565 const u8 *pos;
566 int len;
567
568 if (!attr)
569 return true;
570
571 pos = nla_data(attr);
572 len = nla_len(attr);
573
574 while (len) {
575 u8 elemlen;
576
577 if (len < 2)
578 return false;
579 len -= 2;
580
581 elemlen = pos[1];
582 if (elemlen > len)
583 return false;
584
585 len -= elemlen;
586 pos += 2 + elemlen;
587 }
588
589 return true;
590}
591
55682965 592/* message building helper */
15e47304 593static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 594 int flags, u8 cmd)
595{
596 /* since there is no private header just add the generic one */
15e47304 597 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 598}
599
5dab3b8a 600static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 601 struct ieee80211_channel *chan,
602 bool large)
5dab3b8a 603{
ea077c1c
RL		 604 /* Some channels must be completely excluded from the
605 * list to protect old user-space tools from breaking
606 */
607 if (!large && chan->flags &
608 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
609 return 0;
610
9360ffd1
DM		 611 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
612 chan->center_freq))
613 goto nla_put_failure;
5dab3b8a 614
9360ffd1
DM		 615 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
616 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
617 goto nla_put_failure;
8fe02e16
LR		 618 if (chan->flags & IEEE80211_CHAN_NO_IR) {
619 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
620 goto nla_put_failure;
621 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
622 goto nla_put_failure;
623 }
cdc89b97
JB		 624 if (chan->flags & IEEE80211_CHAN_RADAR) {
625 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
626 goto nla_put_failure;
627 if (large) {
628 u32 time;
629
630 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
631
632 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
633 chan->dfs_state))
634 goto nla_put_failure;
635 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
636 time))
637 goto nla_put_failure;
089027e5
JD		 638 if (nla_put_u32(msg,
639 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
640 chan->dfs_cac_ms))
641 goto nla_put_failure;
cdc89b97
JB		 642 }
643 }
5dab3b8a 644
fe1abafd
JB		 645 if (large) {
646 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
648 goto nla_put_failure;
649 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
650 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
651 goto nla_put_failure;
652 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
654 goto nla_put_failure;
655 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
656 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
657 goto nla_put_failure;
570dbde1
DS		 658 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
659 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
660 goto nla_put_failure;
06f207fc
AN		 661 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
662 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 663 goto nla_put_failure;
ea077c1c
RL		 664 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
665 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
666 goto nla_put_failure;
667 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
668 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
669 goto nla_put_failure;
fe1abafd
JB		 670 }
671
9360ffd1
DM		 672 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
673 DBM_TO_MBM(chan->max_power)))
674 goto nla_put_failure;
5dab3b8a
LR		 675
676 return 0;
677
678 nla_put_failure:
679 return -ENOBUFS;
680}
681
55682965
JB		 682/* netlink command implementations */
683
b9454e83
JB		 684struct key_parse {
685 struct key_params p;
686 int idx;
e31b8213 687 int type;
b9454e83 688 bool def, defmgmt;
dbd2fd65 689 bool def_uni, def_multi;
b9454e83
JB		 690};
691
692static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
693{
694 struct nlattr *tb[NL80211_KEY_MAX + 1];
695 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
696 nl80211_key_policy);
697 if (err)
698 return err;
699
700 k->def = !!tb[NL80211_KEY_DEFAULT];
701 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
702
dbd2fd65
JB		 703 if (k->def) {
704 k->def_uni = true;
705 k->def_multi = true;
706 }
707 if (k->defmgmt)
708 k->def_multi = true;
709
b9454e83
JB		 710 if (tb[NL80211_KEY_IDX])
711 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
712
713 if (tb[NL80211_KEY_DATA]) {
714 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
715 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
716 }
717
718 if (tb[NL80211_KEY_SEQ]) {
719 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
720 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
721 }
722
723 if (tb[NL80211_KEY_CIPHER])
724 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
725
e31b8213
JB		 726 if (tb[NL80211_KEY_TYPE]) {
727 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
728 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
729 return -EINVAL;
730 }
731
dbd2fd65
JB		 732 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
733 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 734 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
735 tb[NL80211_KEY_DEFAULT_TYPES],
736 nl80211_key_default_policy);
dbd2fd65
JB		 737 if (err)
738 return err;
739
740 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
741 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
742 }
743
b9454e83
JB		 744 return 0;
745}
746
747static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
748{
749 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
750 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
751 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
752 }
753
754 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
755 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
756 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
757 }
758
759 if (info->attrs[NL80211_ATTR_KEY_IDX])
760 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
761
762 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
763 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
764
765 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
766 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
767
dbd2fd65
JB		 768 if (k->def) {
769 k->def_uni = true;
770 k->def_multi = true;
771 }
772 if (k->defmgmt)
773 k->def_multi = true;
774
e31b8213
JB		 775 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
776 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
777 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
778 return -EINVAL;
779 }
780
dbd2fd65
JB		 781 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
782 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
783 int err = nla_parse_nested(
784 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
785 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
786 nl80211_key_default_policy);
787 if (err)
788 return err;
789
790 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
791 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
792 }
793
b9454e83
JB		 794 return 0;
795}
796
797static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
798{
799 int err;
800
801 memset(k, 0, sizeof(*k));
802 k->idx = -1;
e31b8213 803 k->type = -1;
b9454e83
JB		 804
805 if (info->attrs[NL80211_ATTR_KEY])
806 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
807 else
808 err = nl80211_parse_key_old(info, k);
809
810 if (err)
811 return err;
812
813 if (k->def && k->defmgmt)
814 return -EINVAL;
815
dbd2fd65
JB		 816 if (k->defmgmt) {
817 if (k->def_uni || !k->def_multi)
818 return -EINVAL;
819 }
820
b9454e83
JB		 821 if (k->idx != -1) {
822 if (k->defmgmt) {
823 if (k->idx < 4 || k->idx > 5)
824 return -EINVAL;
825 } else if (k->def) {
826 if (k->idx < 0 || k->idx > 3)
827 return -EINVAL;
828 } else {
829 if (k->idx < 0 || k->idx > 5)
830 return -EINVAL;
831 }
832 }
833
834 return 0;
835}
836
fffd0934
JB		 837static struct cfg80211_cached_keys *
838nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 839 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 840{
841 struct key_parse parse;
842 struct nlattr *key;
843 struct cfg80211_cached_keys *result;
844 int rem, err, def = 0;
845
846 result = kzalloc(sizeof(*result), GFP_KERNEL);
847 if (!result)
848 return ERR_PTR(-ENOMEM);
849
850 result->def = -1;
851 result->defmgmt = -1;
852
853 nla_for_each_nested(key, keys, rem) {
854 memset(&parse, 0, sizeof(parse));
855 parse.idx = -1;
856
857 err = nl80211_parse_key_new(key, &parse);
858 if (err)
859 goto error;
860 err = -EINVAL;
861 if (!parse.p.key)
862 goto error;
863 if (parse.idx < 0 || parse.idx > 4)
864 goto error;
865 if (parse.def) {
866 if (def)
867 goto error;
868 def = 1;
869 result->def = parse.idx;
dbd2fd65
JB		 870 if (!parse.def_uni || !parse.def_multi)
871 goto error;
fffd0934
JB		 872 } else if (parse.defmgmt)
873 goto error;
874 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 875 parse.idx, false, NULL);
fffd0934
JB		 876 if (err)
877 goto error;
878 result->params[parse.idx].cipher = parse.p.cipher;
879 result->params[parse.idx].key_len = parse.p.key_len;
880 result->params[parse.idx].key = result->data[parse.idx];
881 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 882
883 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
884 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
885 if (no_ht)
886 *no_ht = true;
887 }
fffd0934
JB		 888 }
889
890 return result;
891 error:
892 kfree(result);
893 return ERR_PTR(err);
894}
895
896static int nl80211_key_allowed(struct wireless_dev *wdev)
897{
898 ASSERT_WDEV_LOCK(wdev);
899
fffd0934
JB		 900 switch (wdev->iftype) {
901 case NL80211_IFTYPE_AP:
902 case NL80211_IFTYPE_AP_VLAN:
074ac8df 903 case NL80211_IFTYPE_P2P_GO:
ff973af7 904 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 905 break;
906 case NL80211_IFTYPE_ADHOC:
fffd0934 907 case NL80211_IFTYPE_STATION:
074ac8df 908 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 909 if (!wdev->current_bss)
fffd0934
JB		 910 return -ENOLINK;
911 break;
de4fcbad 912 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 913 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 914 case NL80211_IFTYPE_MONITOR:
915 case NL80211_IFTYPE_P2P_DEVICE:
916 case NL80211_IFTYPE_WDS:
917 case NUM_NL80211_IFTYPES:
fffd0934
JB		 918 return -EINVAL;
919 }
920
921 return 0;
922}
923
664834de
JM		 924static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
925 struct nlattr *tb)
926{
927 struct ieee80211_channel *chan;
928
929 if (tb == NULL)
930 return NULL;
931 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
932 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
933 return NULL;
934 return chan;
935}
936
7527a782
JB		 937static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
938{
939 struct nlattr *nl_modes = nla_nest_start(msg, attr);
940 int i;
941
942 if (!nl_modes)
943 goto nla_put_failure;
944
945 i = 0;
946 while (ifmodes) {
9360ffd1
DM		 947 if ((ifmodes & 1) && nla_put_flag(msg, i))
948 goto nla_put_failure;
7527a782
JB		 949 ifmodes >>= 1;
950 i++;
951 }
952
953 nla_nest_end(msg, nl_modes);
954 return 0;
955
956nla_put_failure:
957 return -ENOBUFS;
958}
959
960static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 961 struct sk_buff *msg,
962 bool large)
7527a782
JB		 963{
964 struct nlattr *nl_combis;
965 int i, j;
966
967 nl_combis = nla_nest_start(msg,
968 NL80211_ATTR_INTERFACE_COMBINATIONS);
969 if (!nl_combis)
970 goto nla_put_failure;
971
972 for (i = 0; i < wiphy->n_iface_combinations; i++) {
973 const struct ieee80211_iface_combination *c;
974 struct nlattr *nl_combi, *nl_limits;
975
976 c = &wiphy->iface_combinations[i];
977
978 nl_combi = nla_nest_start(msg, i + 1);
979 if (!nl_combi)
980 goto nla_put_failure;
981
982 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
983 if (!nl_limits)
984 goto nla_put_failure;
985
986 for (j = 0; j < c->n_limits; j++) {
987 struct nlattr *nl_limit;
988
989 nl_limit = nla_nest_start(msg, j + 1);
990 if (!nl_limit)
991 goto nla_put_failure;
9360ffd1
DM		 992 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
993 c->limits[j].max))
994 goto nla_put_failure;
7527a782
JB		 995 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
996 c->limits[j].types))
997 goto nla_put_failure;
998 nla_nest_end(msg, nl_limit);
999 }
1000
1001 nla_nest_end(msg, nl_limits);
1002
9360ffd1
DM		 1003 if (c->beacon_int_infra_match &&
1004 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1005 goto nla_put_failure;
1006 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1007 c->num_different_channels) ||
1008 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1009 c->max_interfaces))
1010 goto nla_put_failure;
cdc89b97 1011 if (large &&
8c48b50a
FF		 1012 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1013 c->radar_detect_widths) ||
1014 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1015 c->radar_detect_regions)))
cdc89b97 1016 goto nla_put_failure;
7527a782
JB		 1017
1018 nla_nest_end(msg, nl_combi);
1019 }
1020
1021 nla_nest_end(msg, nl_combis);
1022
1023 return 0;
1024nla_put_failure:
1025 return -ENOBUFS;
1026}
1027
3713b4e3 1028#ifdef CONFIG_PM
b56cf720
JB		 1029static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1030 struct sk_buff *msg)
1031{
964dc9e2 1032 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1033 struct nlattr *nl_tcp;
1034
1035 if (!tcp)
1036 return 0;
1037
1038 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1039 if (!nl_tcp)
1040 return -ENOBUFS;
1041
1042 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1043 tcp->data_payload_max))
1044 return -ENOBUFS;
1045
1046 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1047 tcp->data_payload_max))
1048 return -ENOBUFS;
1049
1050 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1051 return -ENOBUFS;
1052
1053 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1054 sizeof(*tcp->tok), tcp->tok))
1055 return -ENOBUFS;
1056
1057 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1058 tcp->data_interval_max))
1059 return -ENOBUFS;
1060
1061 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1062 tcp->wake_payload_max))
1063 return -ENOBUFS;
1064
1065 nla_nest_end(msg, nl_tcp);
1066 return 0;
1067}
1068
3713b4e3 1069static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1070 struct cfg80211_registered_device *rdev,
b56cf720 1071 bool large)
55682965 1072{
3713b4e3 1073 struct nlattr *nl_wowlan;
55682965 1074
1b8ec87a 1075 if (!rdev->wiphy.wowlan)
3713b4e3 1076 return 0;
55682965 1077
3713b4e3
JB		 1078 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1079 if (!nl_wowlan)
1080 return -ENOBUFS;
9360ffd1 1081
1b8ec87a 1082 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1083 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1084 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1086 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1087 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1088 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1090 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1092 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1094 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1096 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1098 return -ENOBUFS;
9360ffd1 1099
1b8ec87a 1100 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1101 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1102 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1103 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1104 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1105 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1106 };
9360ffd1 1107
3713b4e3
JB		 1108 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1109 sizeof(pat), &pat))
1110 return -ENOBUFS;
1111 }
9360ffd1 1112
75453ccb
LC		 1113 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1114 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1115 rdev->wiphy.wowlan->max_nd_match_sets))
1116 return -ENOBUFS;
1117
1b8ec87a 1118 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1119 return -ENOBUFS;
1120
3713b4e3 1121 nla_nest_end(msg, nl_wowlan);
9360ffd1 1122
3713b4e3
JB		 1123 return 0;
1124}
1125#endif
9360ffd1 1126
be29b99a 1127static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1128 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1129{
1130 struct nl80211_coalesce_rule_support rule;
1131
1b8ec87a 1132 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1133 return 0;
1134
1b8ec87a
ZG		 1135 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1136 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1137 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1138 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1139 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1140 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1141
1142 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1143 return -ENOBUFS;
1144
1145 return 0;
1146}
1147
3713b4e3
JB		 1148static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1149 struct ieee80211_supported_band *sband)
1150{
1151 struct nlattr *nl_rates, *nl_rate;
1152 struct ieee80211_rate *rate;
1153 int i;
87bbbe22 1154
3713b4e3
JB		 1155 /* add HT info */
1156 if (sband->ht_cap.ht_supported &&
1157 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1158 sizeof(sband->ht_cap.mcs),
1159 &sband->ht_cap.mcs) ||
1160 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1161 sband->ht_cap.cap) ||
1162 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1163 sband->ht_cap.ampdu_factor) ||
1164 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1165 sband->ht_cap.ampdu_density)))
1166 return -ENOBUFS;
afe0cbf8 1167
3713b4e3
JB		 1168 /* add VHT info */
1169 if (sband->vht_cap.vht_supported &&
1170 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1171 sizeof(sband->vht_cap.vht_mcs),
1172 &sband->vht_cap.vht_mcs) ||
1173 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1174 sband->vht_cap.cap)))
1175 return -ENOBUFS;
f59ac048 1176
3713b4e3
JB		 1177 /* add bitrates */
1178 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1179 if (!nl_rates)
1180 return -ENOBUFS;
ee688b00 1181
3713b4e3
JB		 1182 for (i = 0; i < sband->n_bitrates; i++) {
1183 nl_rate = nla_nest_start(msg, i);
1184 if (!nl_rate)
1185 return -ENOBUFS;
ee688b00 1186
3713b4e3
JB		 1187 rate = &sband->bitrates[i];
1188 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1189 rate->bitrate))
1190 return -ENOBUFS;
1191 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1192 nla_put_flag(msg,
1193 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1194 return -ENOBUFS;
ee688b00 1195
3713b4e3
JB		 1196 nla_nest_end(msg, nl_rate);
1197 }
d51626df 1198
3713b4e3 1199 nla_nest_end(msg, nl_rates);
bf0c111e 1200
3713b4e3
JB		 1201 return 0;
1202}
ee688b00 1203
3713b4e3
JB		 1204static int
1205nl80211_send_mgmt_stypes(struct sk_buff *msg,
1206 const struct ieee80211_txrx_stypes *mgmt_stypes)
1207{
1208 u16 stypes;
1209 struct nlattr *nl_ftypes, *nl_ifs;
1210 enum nl80211_iftype ift;
1211 int i;
ee688b00 1212
3713b4e3
JB		 1213 if (!mgmt_stypes)
1214 return 0;
5dab3b8a 1215
3713b4e3
JB		 1216 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1217 if (!nl_ifs)
1218 return -ENOBUFS;
e2f367f2 1219
3713b4e3
JB		 1220 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1221 nl_ftypes = nla_nest_start(msg, ift);
1222 if (!nl_ftypes)
1223 return -ENOBUFS;
1224 i = 0;
1225 stypes = mgmt_stypes[ift].tx;
1226 while (stypes) {
1227 if ((stypes & 1) &&
1228 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1229 (i << 4) | IEEE80211_FTYPE_MGMT))
1230 return -ENOBUFS;
1231 stypes >>= 1;
1232 i++;
ee688b00 1233 }
3713b4e3
JB		 1234 nla_nest_end(msg, nl_ftypes);
1235 }
ee688b00 1236
3713b4e3 1237 nla_nest_end(msg, nl_ifs);
ee688b00 1238
3713b4e3
JB		 1239 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1240 if (!nl_ifs)
1241 return -ENOBUFS;
ee688b00 1242
3713b4e3
JB		 1243 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1244 nl_ftypes = nla_nest_start(msg, ift);
1245 if (!nl_ftypes)
1246 return -ENOBUFS;
1247 i = 0;
1248 stypes = mgmt_stypes[ift].rx;
1249 while (stypes) {
1250 if ((stypes & 1) &&
1251 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1252 (i << 4) | IEEE80211_FTYPE_MGMT))
1253 return -ENOBUFS;
1254 stypes >>= 1;
1255 i++;
1256 }
1257 nla_nest_end(msg, nl_ftypes);
1258 }
1259 nla_nest_end(msg, nl_ifs);
ee688b00 1260
3713b4e3
JB		 1261 return 0;
1262}
ee688b00 1263
86e8cf98
JB		 1264struct nl80211_dump_wiphy_state {
1265 s64 filter_wiphy;
1266 long start;
019ae3a9 1267 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1268 bool split;
1269};
1270
1b8ec87a 1271static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1272 enum nl80211_commands cmd,
3713b4e3 1273 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1274 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1275{
1276 void *hdr;
1277 struct nlattr *nl_bands, *nl_band;
1278 struct nlattr *nl_freqs, *nl_freq;
1279 struct nlattr *nl_cmds;
57fbcce3 1280 enum nl80211_band band;
3713b4e3
JB		 1281 struct ieee80211_channel *chan;
1282 int i;
1283 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1284 rdev->wiphy.mgmt_stypes;
fe1abafd 1285 u32 features;
ee688b00 1286
3bb20556 1287 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1288 if (!hdr)
1289 return -ENOBUFS;
ee688b00 1290
86e8cf98
JB		 1291 if (WARN_ON(!state))
1292 return -EINVAL;
ee688b00 1293
1b8ec87a 1294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1295 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1296 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1297 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1298 cfg80211_rdev_list_generation))
8fdc621d
JB		 1299 goto nla_put_failure;
1300
3bb20556
JB		 1301 if (cmd != NL80211_CMD_NEW_WIPHY)
1302 goto finish;
1303
86e8cf98 1304 switch (state->split_start) {
3713b4e3
JB		 1305 case 0:
1306 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1307 rdev->wiphy.retry_short) ||
3713b4e3 1308 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1309 rdev->wiphy.retry_long) ||
3713b4e3 1310 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1311 rdev->wiphy.frag_threshold) ||
3713b4e3 1312 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1313 rdev->wiphy.rts_threshold) ||
3713b4e3 1314 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1315 rdev->wiphy.coverage_class) ||
3713b4e3 1316 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1317 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1318 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1319 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1320 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1321 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1322 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1323 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1324 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1325 rdev->wiphy.max_match_sets) ||
1326 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1327 rdev->wiphy.max_sched_scan_plans) ||
1328 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1329 rdev->wiphy.max_sched_scan_plan_interval) ||
1330 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1331 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1332 goto nla_put_failure;
3713b4e3 1333
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1335 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1336 goto nla_put_failure;
1b8ec87a 1337 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1338 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1339 goto nla_put_failure;
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1341 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1342 goto nla_put_failure;
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1344 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1345 goto nla_put_failure;
1b8ec87a 1346 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1347 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1348 goto nla_put_failure;
1b8ec87a 1349 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1350 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1351 goto nla_put_failure;
86e8cf98
JB		 1352 state->split_start++;
1353 if (state->split)
3713b4e3
JB		 1354 break;
1355 case 1:
1356 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1357 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1358 rdev->wiphy.cipher_suites))
3713b4e3 1359 goto nla_put_failure;
4745fc09 1360
3713b4e3 1361 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1362 rdev->wiphy.max_num_pmkids))
3713b4e3 1363 goto nla_put_failure;
b23aa676 1364
1b8ec87a 1365 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1366 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1367 goto nla_put_failure;
b23aa676 1368
3713b4e3 1369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1370 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1371 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1372 rdev->wiphy.available_antennas_rx))
9360ffd1 1373 goto nla_put_failure;
b23aa676 1374
1b8ec87a 1375 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1376 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1377 rdev->wiphy.probe_resp_offload))
3713b4e3 1378 goto nla_put_failure;
8fdc621d 1379
1b8ec87a
ZG		 1380 if ((rdev->wiphy.available_antennas_tx ||
1381 rdev->wiphy.available_antennas_rx) &&
1382 rdev->ops->get_antenna) {
3713b4e3
JB		 1383 u32 tx_ant = 0, rx_ant = 0;
1384 int res;
1b8ec87a 1385 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1386 if (!res) {
1387 if (nla_put_u32(msg,
1388 NL80211_ATTR_WIPHY_ANTENNA_TX,
1389 tx_ant) ||
1390 nla_put_u32(msg,
1391 NL80211_ATTR_WIPHY_ANTENNA_RX,
1392 rx_ant))
1393 goto nla_put_failure;
1394 }
1395 }
a293911d 1396
86e8cf98
JB		 1397 state->split_start++;
1398 if (state->split)
3713b4e3
JB		 1399 break;
1400 case 2:
1401 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1402 rdev->wiphy.interface_modes))
3713b4e3 1403 goto nla_put_failure;
86e8cf98
JB		 1404 state->split_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 case 3:
1408 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1409 if (!nl_bands)
1410 goto nla_put_failure;
f7ca38df 1411
86e8cf98 1412 for (band = state->band_start;
57fbcce3 1413 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1414 struct ieee80211_supported_band *sband;
2e161f78 1415
1b8ec87a 1416 sband = rdev->wiphy.bands[band];
2e161f78 1417
3713b4e3
JB		 1418 if (!sband)
1419 continue;
1420
1421 nl_band = nla_nest_start(msg, band);
1422 if (!nl_band)
2e161f78 1423 goto nla_put_failure;
3713b4e3 1424
86e8cf98 1425 switch (state->chan_start) {
3713b4e3
JB		 1426 case 0:
1427 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1428 goto nla_put_failure;
86e8cf98
JB		 1429 state->chan_start++;
1430 if (state->split)
3713b4e3
JB		 1431 break;
1432 default:
1433 /* add frequencies */
1434 nl_freqs = nla_nest_start(
1435 msg, NL80211_BAND_ATTR_FREQS);
1436 if (!nl_freqs)
1437 goto nla_put_failure;
1438
86e8cf98 1439 for (i = state->chan_start - 1;
3713b4e3
JB		 1440 i < sband->n_channels;
1441 i++) {
1442 nl_freq = nla_nest_start(msg, i);
1443 if (!nl_freq)
1444 goto nla_put_failure;
1445
1446 chan = &sband->channels[i];
1447
86e8cf98
JB		 1448 if (nl80211_msg_put_channel(
1449 msg, chan,
1450 state->split))
3713b4e3
JB		 1451 goto nla_put_failure;
1452
1453 nla_nest_end(msg, nl_freq);
86e8cf98 1454 if (state->split)
3713b4e3
JB		 1455 break;
1456 }
1457 if (i < sband->n_channels)
86e8cf98 1458 state->chan_start = i + 2;
3713b4e3 1459 else
86e8cf98 1460 state->chan_start = 0;
3713b4e3
JB		 1461 nla_nest_end(msg, nl_freqs);
1462 }
1463
1464 nla_nest_end(msg, nl_band);
1465
86e8cf98 1466 if (state->split) {
3713b4e3 1467 /* start again here */
86e8cf98 1468 if (state->chan_start)
3713b4e3
JB		 1469 band--;
1470 break;
2e161f78 1471 }
2e161f78 1472 }
3713b4e3 1473 nla_nest_end(msg, nl_bands);
2e161f78 1474
57fbcce3 1475 if (band < NUM_NL80211_BANDS)
86e8cf98 1476 state->band_start = band + 1;
3713b4e3 1477 else
86e8cf98 1478 state->band_start = 0;
74b70a4e 1479
3713b4e3 1480 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1481 if (state->band_start == 0 && state->chan_start == 0)
1482 state->split_start++;
1483 if (state->split)
3713b4e3
JB		 1484 break;
1485 case 4:
1486 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1487 if (!nl_cmds)
2e161f78
JB		 1488 goto nla_put_failure;
1489
3713b4e3
JB		 1490 i = 0;
1491#define CMD(op, n) \
1492 do { \
1b8ec87a 1493 if (rdev->ops->op) { \
3713b4e3
JB		 1494 i++; \
1495 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1496 goto nla_put_failure; \
1497 } \
1498 } while (0)
1499
1500 CMD(add_virtual_intf, NEW_INTERFACE);
1501 CMD(change_virtual_intf, SET_INTERFACE);
1502 CMD(add_key, NEW_KEY);
1503 CMD(start_ap, START_AP);
1504 CMD(add_station, NEW_STATION);
1505 CMD(add_mpath, NEW_MPATH);
1506 CMD(update_mesh_config, SET_MESH_CONFIG);
1507 CMD(change_bss, SET_BSS);
1508 CMD(auth, AUTHENTICATE);
1509 CMD(assoc, ASSOCIATE);
1510 CMD(deauth, DEAUTHENTICATE);
1511 CMD(disassoc, DISASSOCIATE);
1512 CMD(join_ibss, JOIN_IBSS);
1513 CMD(join_mesh, JOIN_MESH);
1514 CMD(set_pmksa, SET_PMKSA);
1515 CMD(del_pmksa, DEL_PMKSA);
1516 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1517 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1518 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1519 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1520 CMD(mgmt_tx, FRAME);
1521 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1522 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1523 i++;
1524 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1525 goto nla_put_failure;
2e161f78 1526 }
1b8ec87a
ZG		 1527 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1528 rdev->ops->join_mesh) {
3713b4e3
JB		 1529 i++;
1530 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1531 goto nla_put_failure;
1532 }
1533 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1534 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1535 CMD(tdls_mgmt, TDLS_MGMT);
1536 CMD(tdls_oper, TDLS_OPER);
1537 }
1b8ec87a 1538 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1539 CMD(sched_scan_start, START_SCHED_SCAN);
1540 CMD(probe_client, PROBE_CLIENT);
1541 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1542 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1543 i++;
1544 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1545 goto nla_put_failure;
1546 }
1547 CMD(start_p2p_device, START_P2P_DEVICE);
1548 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1549#ifdef CONFIG_NL80211_TESTMODE
1550 CMD(testmode_cmd, TESTMODE);
1551#endif
86e8cf98 1552 if (state->split) {
5de17984
AS		 1553 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1554 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1555 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1556 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1557 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1558 if (rdev->wiphy.features &
1559 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1560 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1561 }
02df00eb 1562 /* add into the if now */
3713b4e3 1563#undef CMD
ff1b6e69 1564
1b8ec87a 1565 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1566 i++;
1567 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1568 goto nla_put_failure;
ff1b6e69
JB		 1569 }
1570
1b8ec87a 1571 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1572 i++;
1573 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1574 goto nla_put_failure;
1575 }
1576
1577 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1578 state->split_start++;
1579 if (state->split)
3713b4e3
JB		 1580 break;
1581 case 5:
1b8ec87a
ZG		 1582 if (rdev->ops->remain_on_channel &&
1583 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1584 nla_put_u32(msg,
1585 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1586 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1587 goto nla_put_failure;
1588
1b8ec87a 1589 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1590 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1591 goto nla_put_failure;
1592
1593 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1594 goto nla_put_failure;
86e8cf98
JB		 1595 state->split_start++;
1596 if (state->split)
3713b4e3
JB		 1597 break;
1598 case 6:
1599#ifdef CONFIG_PM
1b8ec87a 1600 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1601 goto nla_put_failure;
86e8cf98
JB		 1602 state->split_start++;
1603 if (state->split)
3713b4e3
JB		 1604 break;
1605#else
86e8cf98 1606 state->split_start++;
dfb89c56 1607#endif
3713b4e3
JB		 1608 case 7:
1609 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1610 rdev->wiphy.software_iftypes))
3713b4e3 1611 goto nla_put_failure;
ff1b6e69 1612
1b8ec87a 1613 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1614 state->split))
3713b4e3 1615 goto nla_put_failure;
7527a782 1616
86e8cf98
JB		 1617 state->split_start++;
1618 if (state->split)
3713b4e3
JB		 1619 break;
1620 case 8:
1b8ec87a 1621 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1622 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1623 rdev->wiphy.ap_sme_capa))
3713b4e3 1624 goto nla_put_failure;
7527a782 1625
1b8ec87a 1626 features = rdev->wiphy.features;
fe1abafd
JB		 1627 /*
1628 * We can only add the per-channel limit information if the
1629 * dump is split, otherwise it makes it too big. Therefore
1630 * only advertise it in that case.
1631 */
86e8cf98 1632 if (state->split)
fe1abafd
JB		 1633 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1634 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1635 goto nla_put_failure;
562a7480 1636
1b8ec87a 1637 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1638 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1639 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1640 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1641 goto nla_put_failure;
1f074bd8 1642
1b8ec87a
ZG		 1643 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1644 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1645 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1646 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1647 goto nla_put_failure;
7e7c8926 1648
3713b4e3
JB		 1649 /*
1650 * Any information below this point is only available to
1651 * applications that can deal with it being split. This
1652 * helps ensure that newly added capabilities don't break
1653 * older tools by overrunning their buffers.
1654 *
1655 * We still increment split_start so that in the split
1656 * case we'll continue with more data in the next round,
1657 * but break unconditionally so unsplit data stops here.
1658 */
86e8cf98 1659 state->split_start++;
3713b4e3
JB		 1660 break;
1661 case 9:
1b8ec87a 1662 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1663 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1664 rdev->wiphy.extended_capabilities_len,
1665 rdev->wiphy.extended_capabilities) ||
fe1abafd 1666 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1667 rdev->wiphy.extended_capabilities_len,
1668 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1669 goto nla_put_failure;
a50df0c4 1670
1b8ec87a 1671 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1672 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1673 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1674 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1675 goto nla_put_failure;
1676
be29b99a
AK		 1677 state->split_start++;
1678 break;
1679 case 10:
1b8ec87a 1680 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1681 goto nla_put_failure;
1682
1b8ec87a 1683 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1684 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1685 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1686 goto nla_put_failure;
b43504cf 1687
1b8ec87a 1688 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1689 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1690 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1691 goto nla_put_failure;
1692
ad7e718c
JB		 1693 state->split_start++;
1694 break;
1695 case 11:
1b8ec87a 1696 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1697 const struct nl80211_vendor_cmd_info *info;
1698 struct nlattr *nested;
1699
1700 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1701 if (!nested)
1702 goto nla_put_failure;
1703
1b8ec87a
ZG		 1704 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1705 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1706 if (nla_put(msg, i + 1, sizeof(*info), info))
1707 goto nla_put_failure;
1708 }
1709 nla_nest_end(msg, nested);
1710 }
1711
1b8ec87a 1712 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1713 const struct nl80211_vendor_cmd_info *info;
1714 struct nlattr *nested;
ad7e718c 1715
567ffc35
JB		 1716 nested = nla_nest_start(msg,
1717 NL80211_ATTR_VENDOR_EVENTS);
1718 if (!nested)
ad7e718c 1719 goto nla_put_failure;
567ffc35 1720
1b8ec87a
ZG		 1721 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1722 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1723 if (nla_put(msg, i + 1, sizeof(*info), info))
1724 goto nla_put_failure;
1725 }
1726 nla_nest_end(msg, nested);
1727 }
9a774c78
AO		 1728 state->split_start++;
1729 break;
1730 case 12:
1731 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1732 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1733 rdev->wiphy.max_num_csa_counters))
1734 goto nla_put_failure;
01e0daa4 1735
1bdd716c
AN		 1736 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1737 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1738 goto nla_put_failure;
1739
d75bb06b
GKS		 1740 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1741 sizeof(rdev->wiphy.ext_features),
1742 rdev->wiphy.ext_features))
1743 goto nla_put_failure;
1744
38de03d2
AS		 1745 if (rdev->wiphy.bss_select_support) {
1746 struct nlattr *nested;
1747 u32 bss_select_support = rdev->wiphy.bss_select_support;
1748
1749 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1750 if (!nested)
1751 goto nla_put_failure;
1752
1753 i = 0;
1754 while (bss_select_support) {
1755 if ((bss_select_support & 1) &&
1756 nla_put_flag(msg, i))
1757 goto nla_put_failure;
1758 i++;
1759 bss_select_support >>= 1;
1760 }
1761 nla_nest_end(msg, nested);
1762 }
1763
019ae3a9
KV		 1764 state->split_start++;
1765 break;
1766 case 13:
1767 if (rdev->wiphy.num_iftype_ext_capab &&
1768 rdev->wiphy.iftype_ext_capab) {
1769 struct nlattr *nested_ext_capab, *nested;
1770
1771 nested = nla_nest_start(msg,
1772 NL80211_ATTR_IFTYPE_EXT_CAPA);
1773 if (!nested)
1774 goto nla_put_failure;
1775
1776 for (i = state->capa_start;
1777 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1778 const struct wiphy_iftype_ext_capab *capab;
1779
1780 capab = &rdev->wiphy.iftype_ext_capab[i];
1781
1782 nested_ext_capab = nla_nest_start(msg, i);
1783 if (!nested_ext_capab ||
1784 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1785 capab->iftype) ||
1786 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1787 capab->extended_capabilities_len,
1788 capab->extended_capabilities) ||
1789 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1790 capab->extended_capabilities_len,
1791 capab->extended_capabilities_mask))
1792 goto nla_put_failure;
1793
1794 nla_nest_end(msg, nested_ext_capab);
1795 if (state->split)
1796 break;
1797 }
1798 nla_nest_end(msg, nested);
1799 if (i < rdev->wiphy.num_iftype_ext_capab) {
1800 state->capa_start = i + 1;
1801 break;
1802 }
1803 }
1804
3713b4e3 1805 /* done */
86e8cf98 1806 state->split_start = 0;
3713b4e3
JB		 1807 break;
1808 }
3bb20556 1809 finish:
053c095a
JB		 1810 genlmsg_end(msg, hdr);
1811 return 0;
55682965
JB		 1812
1813 nla_put_failure:
bc3ed28c
TG		 1814 genlmsg_cancel(msg, hdr);
1815 return -EMSGSIZE;
55682965
JB		 1816}
1817
86e8cf98
JB		 1818static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1819 struct netlink_callback *cb,
1820 struct nl80211_dump_wiphy_state *state)
1821{
1822 struct nlattr **tb = nl80211_fam.attrbuf;
1823 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1824 tb, nl80211_fam.maxattr, nl80211_policy);
1825 /* ignore parse errors for backward compatibility */
1826 if (ret)
1827 return 0;
1828
1829 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1830 if (tb[NL80211_ATTR_WIPHY])
1831 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1832 if (tb[NL80211_ATTR_WDEV])
1833 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1834 if (tb[NL80211_ATTR_IFINDEX]) {
1835 struct net_device *netdev;
1836 struct cfg80211_registered_device *rdev;
1837 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1838
7f2b8562 1839 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1840 if (!netdev)
1841 return -ENODEV;
1842 if (netdev->ieee80211_ptr) {
f26cbf40 1843 rdev = wiphy_to_rdev(
86e8cf98
JB		 1844 netdev->ieee80211_ptr->wiphy);
1845 state->filter_wiphy = rdev->wiphy_idx;
1846 }
86e8cf98
JB		 1847 }
1848
1849 return 0;
1850}
1851
55682965
JB		 1852static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1853{
645e77de 1854 int idx = 0, ret;
86e8cf98 1855 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1856 struct cfg80211_registered_device *rdev;
3a5a423b 1857
5fe231e8 1858 rtnl_lock();
86e8cf98
JB		 1859 if (!state) {
1860 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1861 if (!state) {
1862 rtnl_unlock();
86e8cf98 1863 return -ENOMEM;
3713b4e3 1864 }
86e8cf98
JB		 1865 state->filter_wiphy = -1;
1866 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1867 if (ret) {
1868 kfree(state);
1869 rtnl_unlock();
1870 return ret;
3713b4e3 1871 }
86e8cf98 1872 cb->args[0] = (long)state;
3713b4e3
JB		 1873 }
1874
1b8ec87a
ZG		 1875 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1876 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1877 continue;
86e8cf98 1878 if (++idx <= state->start)
55682965 1879 continue;
86e8cf98 1880 if (state->filter_wiphy != -1 &&
1b8ec87a 1881 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1882 continue;
1883 /* attempt to fit multiple wiphy data chunks into the skb */
1884 do {
3bb20556
JB		 1885 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1886 skb,
3713b4e3
JB		 1887 NETLINK_CB(cb->skb).portid,
1888 cb->nlh->nlmsg_seq,
86e8cf98 1889 NLM_F_MULTI, state);
3713b4e3
JB		 1890 if (ret < 0) {
1891 /*
1892 * If sending the wiphy data didn't fit (ENOBUFS
1893 * or EMSGSIZE returned), this SKB is still
1894 * empty (so it's not too big because another
1895 * wiphy dataset is already in the skb) and
1896 * we've not tried to adjust the dump allocation
1897 * yet ... then adjust the alloc size to be
1898 * bigger, and return 1 but with the empty skb.
1899 * This results in an empty message being RX'ed
1900 * in userspace, but that is ignored.
1901 *
1902 * We can then retry with the larger buffer.
1903 */
1904 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1905 !skb->len && !state->split &&
3713b4e3
JB		 1906 cb->min_dump_alloc < 4096) {
1907 cb->min_dump_alloc = 4096;
f12cb289 1908 state->split_start = 0;
d98cae64 1909 rtnl_unlock();
3713b4e3
JB		 1910 return 1;
1911 }
1912 idx--;
1913 break;
645e77de 1914 }
86e8cf98 1915 } while (state->split_start > 0);
3713b4e3 1916 break;
55682965 1917 }
5fe231e8 1918 rtnl_unlock();
55682965 1919
86e8cf98 1920 state->start = idx;
55682965
JB		 1921
1922 return skb->len;
1923}
1924
86e8cf98
JB		 1925static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1926{
1927 kfree((void *)cb->args[0]);
1928 return 0;
1929}
1930
55682965
JB		 1931static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1932{
1933 struct sk_buff *msg;
1b8ec87a 1934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1935 struct nl80211_dump_wiphy_state state = {};
55682965 1936
645e77de 1937 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1938 if (!msg)
4c476991 1939 return -ENOMEM;
55682965 1940
3bb20556
JB		 1941 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1942 info->snd_portid, info->snd_seq, 0,
86e8cf98 1943 &state) < 0) {
4c476991
JB		 1944 nlmsg_free(msg);
1945 return -ENOBUFS;
1946 }
55682965 1947
134e6375 1948 return genlmsg_reply(msg, info);
55682965
JB		 1949}
1950
31888487
JM		 1951static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1952 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1953 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1954 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1955 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1956 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1957};
1958
1959static int parse_txq_params(struct nlattr *tb[],
1960 struct ieee80211_txq_params *txq_params)
1961{
a3304b0a 1962 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1963 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1964 !tb[NL80211_TXQ_ATTR_AIFS])
1965 return -EINVAL;
1966
a3304b0a 1967 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1968 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1969 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1970 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1971 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1972
a3304b0a
JB		 1973 if (txq_params->ac >= NL80211_NUM_ACS)
1974 return -EINVAL;
1975
31888487
JM		 1976 return 0;
1977}
1978
f444de05
JB		 1979static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1980{
1981 /*
cc1d2806
JB		 1982 * You can only set the channel explicitly for WDS interfaces,
1983 * all others have their channel managed via their respective
1984 * "establish a connection" command (connect, join, ...)
1985 *
1986 * For AP/GO and mesh mode, the channel can be set with the
1987 * channel userspace API, but is only stored and passed to the
1988 * low-level driver when the AP starts or the mesh is joined.
1989 * This is for backward compatibility, userspace can also give
1990 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1991 *
1992 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1993 * whatever else is going on, so they have their own special
1994 * operation to set the monitor channel if possible.
f444de05
JB		 1995 */
1996 return !wdev ||
1997 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1998 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1999 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2000 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2001}
2002
683b6d3b
JB		 2003static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2004 struct genl_info *info,
2005 struct cfg80211_chan_def *chandef)
2006{
dbeca2ea 2007 u32 control_freq;
683b6d3b
JB		 2008
2009 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2010 return -EINVAL;
2011
2012 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2013
2014 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2015 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2016 chandef->center_freq1 = control_freq;
2017 chandef->center_freq2 = 0;
683b6d3b
JB		 2018
2019 /* Primary channel not allowed */
2020 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2021 return -EINVAL;
2022
3d9d1d66
JB		 2023 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2024 enum nl80211_channel_type chantype;
2025
2026 chantype = nla_get_u32(
2027 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2028
2029 switch (chantype) {
2030 case NL80211_CHAN_NO_HT:
2031 case NL80211_CHAN_HT20:
2032 case NL80211_CHAN_HT40PLUS:
2033 case NL80211_CHAN_HT40MINUS:
2034 cfg80211_chandef_create(chandef, chandef->chan,
2035 chantype);
2036 break;
2037 default:
2038 return -EINVAL;
2039 }
2040 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2041 chandef->width =
2042 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2043 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2044 chandef->center_freq1 =
2045 nla_get_u32(
2046 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2047 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2048 chandef->center_freq2 =
2049 nla_get_u32(
2050 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2051 }
2052
9f5e8f6e 2053 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2054 return -EINVAL;
2055
9f5e8f6e
JB		 2056 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2057 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2058 return -EINVAL;
2059
2f301ab2
SW		 2060 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2061 chandef->width == NL80211_CHAN_WIDTH_10) &&
2062 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2063 return -EINVAL;
2064
683b6d3b
JB		 2065 return 0;
2066}
2067
f444de05 2068static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2069 struct net_device *dev,
f444de05
JB		 2070 struct genl_info *info)
2071{
683b6d3b 2072 struct cfg80211_chan_def chandef;
f444de05 2073 int result;
e8c9bd5b 2074 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2075 struct wireless_dev *wdev = NULL;
e8c9bd5b 2076
e16821bc
JM		 2077 if (dev)
2078 wdev = dev->ieee80211_ptr;
f444de05
JB		 2079 if (!nl80211_can_set_dev_channel(wdev))
2080 return -EOPNOTSUPP;
e16821bc
JM		 2081 if (wdev)
2082 iftype = wdev->iftype;
f444de05 2083
683b6d3b
JB		 2084 result = nl80211_parse_chandef(rdev, info, &chandef);
2085 if (result)
2086 return result;
f444de05 2087
e8c9bd5b 2088 switch (iftype) {
aa430da4
JB		 2089 case NL80211_IFTYPE_AP:
2090 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2091 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2092 iftype)) {
aa430da4
JB		 2093 result = -EINVAL;
2094 break;
2095 }
e16821bc
JM		 2096 if (wdev->beacon_interval) {
2097 if (!dev || !rdev->ops->set_ap_chanwidth ||
2098 !(rdev->wiphy.features &
2099 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2100 result = -EBUSY;
2101 break;
2102 }
2103
2104 /* Only allow dynamic channel width changes */
2105 if (chandef.chan != wdev->preset_chandef.chan) {
2106 result = -EBUSY;
2107 break;
2108 }
2109 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2110 if (result)
2111 break;
2112 }
683b6d3b 2113 wdev->preset_chandef = chandef;
aa430da4
JB		 2114 result = 0;
2115 break;
cc1d2806 2116 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2117 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2118 break;
e8c9bd5b 2119 case NL80211_IFTYPE_MONITOR:
683b6d3b 2120 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2121 break;
aa430da4 2122 default:
e8c9bd5b 2123 result = -EINVAL;
f444de05 2124 }
f444de05
JB		 2125
2126 return result;
2127}
2128
2129static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2130{
4c476991
JB		 2131 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2132 struct net_device *netdev = info->user_ptr[1];
f444de05 2133
e16821bc 2134 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2135}
2136
e8347eba
BJ		 2137static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2138{
43b19952
JB		 2139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2140 struct net_device *dev = info->user_ptr[1];
2141 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2142 const u8 *bssid;
e8347eba
BJ		 2143
2144 if (!info->attrs[NL80211_ATTR_MAC])
2145 return -EINVAL;
2146
43b19952
JB		 2147 if (netif_running(dev))
2148 return -EBUSY;
e8347eba 2149
43b19952
JB		 2150 if (!rdev->ops->set_wds_peer)
2151 return -EOPNOTSUPP;
e8347eba 2152
43b19952
JB		 2153 if (wdev->iftype != NL80211_IFTYPE_WDS)
2154 return -EOPNOTSUPP;
e8347eba
BJ		 2155
2156 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2157 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2158}
2159
2160
55682965
JB		 2161static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2162{
2163 struct cfg80211_registered_device *rdev;
f444de05
JB		 2164 struct net_device *netdev = NULL;
2165 struct wireless_dev *wdev;
a1e567c8 2166 int result = 0, rem_txq_params = 0;
31888487 2167 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2168 u32 changed;
2169 u8 retry_short = 0, retry_long = 0;
2170 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2171 u8 coverage_class = 0;
55682965 2172
5fe231e8
JB		 2173 ASSERT_RTNL();
2174
f444de05
JB		 2175 /*
2176 * Try to find the wiphy and netdev. Normally this
2177 * function shouldn't need the netdev, but this is
2178 * done for backward compatibility -- previously
2179 * setting the channel was done per wiphy, but now
2180 * it is per netdev. Previous userland like hostapd
2181 * also passed a netdev to set_wiphy, so that it is
2182 * possible to let that go to the right netdev!
2183 */
4bbf4d56 2184
f444de05
JB		 2185 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2186 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2187
7f2b8562 2188 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2189 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2190 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2191 else
f444de05 2192 netdev = NULL;
4bbf4d56
JB		 2193 }
2194
f444de05 2195 if (!netdev) {
878d9ec7
JB		 2196 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2197 info->attrs);
5fe231e8 2198 if (IS_ERR(rdev))
4c476991 2199 return PTR_ERR(rdev);
f444de05
JB		 2200 wdev = NULL;
2201 netdev = NULL;
2202 result = 0;
71fe96bf 2203 } else
f444de05 2204 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2205
2206 /*
2207 * end workaround code, by now the rdev is available
2208 * and locked, and wdev may or may not be NULL.
2209 */
4bbf4d56
JB		 2210
2211 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2212 result = cfg80211_dev_rename(
2213 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2214
4bbf4d56 2215 if (result)
7f2b8562 2216 return result;
31888487
JM		 2217
2218 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2219 struct ieee80211_txq_params txq_params;
2220 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2221
7f2b8562
YX		 2222 if (!rdev->ops->set_txq_params)
2223 return -EOPNOTSUPP;
31888487 2224
7f2b8562
YX		 2225 if (!netdev)
2226 return -EINVAL;
f70f01c2 2227
133a3ff2 2228 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2229 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2230 return -EINVAL;
133a3ff2 2231
7f2b8562
YX		 2232 if (!netif_running(netdev))
2233 return -ENETDOWN;
2b5f8b0b 2234
31888487
JM		 2235 nla_for_each_nested(nl_txq_params,
2236 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2237 rem_txq_params) {
ae811e21
JB		 2238 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2239 nla_data(nl_txq_params),
2240 nla_len(nl_txq_params),
2241 txq_params_policy);
2242 if (result)
2243 return result;
31888487
JM		 2244 result = parse_txq_params(tb, &txq_params);
2245 if (result)
7f2b8562 2246 return result;
31888487 2247
e35e4d28
HG		 2248 result = rdev_set_txq_params(rdev, netdev,
2249 &txq_params);
31888487 2250 if (result)
7f2b8562 2251 return result;
31888487
JM		 2252 }
2253 }
55682965 2254
72bdcf34 2255 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2256 result = __nl80211_set_channel(
2257 rdev,
2258 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2259 info);
72bdcf34 2260 if (result)
7f2b8562 2261 return result;
72bdcf34
JM		 2262 }
2263
98d2ff8b 2264 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2265 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2266 enum nl80211_tx_power_setting type;
2267 int idx, mbm = 0;
2268
c8442118
JB		 2269 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2270 txp_wdev = NULL;
2271
7f2b8562
YX		 2272 if (!rdev->ops->set_tx_power)
2273 return -EOPNOTSUPP;
98d2ff8b
JO		 2274
2275 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2276 type = nla_get_u32(info->attrs[idx]);
2277
2278 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2279 (type != NL80211_TX_POWER_AUTOMATIC))
2280 return -EINVAL;
98d2ff8b
JO		 2281
2282 if (type != NL80211_TX_POWER_AUTOMATIC) {
2283 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2284 mbm = nla_get_u32(info->attrs[idx]);
2285 }
2286
c8442118 2287 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2288 if (result)
7f2b8562 2289 return result;
98d2ff8b
JO		 2290 }
2291
afe0cbf8
BR		 2292 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2293 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2294 u32 tx_ant, rx_ant;
7f531e03
BR		 2295 if ((!rdev->wiphy.available_antennas_tx &&
2296 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2297 !rdev->ops->set_antenna)
2298 return -EOPNOTSUPP;
afe0cbf8
BR		 2299
2300 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2301 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2302
a7ffac95 2303 /* reject antenna configurations which don't match the
7f531e03
BR		 2304 * available antenna masks, except for the "all" mask */
2305 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2306 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2307 return -EINVAL;
a7ffac95 2308
7f531e03
BR		 2309 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2310 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2311
e35e4d28 2312 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2313 if (result)
7f2b8562 2314 return result;
afe0cbf8
BR		 2315 }
2316
b9a5f8ca
JM		 2317 changed = 0;
2318
2319 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2320 retry_short = nla_get_u8(
2321 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2322 if (retry_short == 0)
2323 return -EINVAL;
2324
b9a5f8ca
JM		 2325 changed |= WIPHY_PARAM_RETRY_SHORT;
2326 }
2327
2328 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2329 retry_long = nla_get_u8(
2330 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2331 if (retry_long == 0)
2332 return -EINVAL;
2333
b9a5f8ca
JM		 2334 changed |= WIPHY_PARAM_RETRY_LONG;
2335 }
2336
2337 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2338 frag_threshold = nla_get_u32(
2339 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2340 if (frag_threshold < 256)
2341 return -EINVAL;
2342
b9a5f8ca
JM		 2343 if (frag_threshold != (u32) -1) {
2344 /*
2345 * Fragments (apart from the last one) are required to
2346 * have even length. Make the fragmentation code
2347 * simpler by stripping LSB should someone try to use
2348 * odd threshold value.
2349 */
2350 frag_threshold &= ~0x1;
2351 }
2352 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2353 }
2354
2355 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2356 rts_threshold = nla_get_u32(
2357 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2358 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2359 }
2360
81077e82 2361 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2362 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2363 return -EINVAL;
2364
81077e82
LT		 2365 coverage_class = nla_get_u8(
2366 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2367 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2368 }
2369
3057dbfd
LB		 2370 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2371 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2372 return -EOPNOTSUPP;
2373
2374 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2375 }
2376
b9a5f8ca
JM		 2377 if (changed) {
2378 u8 old_retry_short, old_retry_long;
2379 u32 old_frag_threshold, old_rts_threshold;
81077e82 2380 u8 old_coverage_class;
b9a5f8ca 2381
7f2b8562
YX		 2382 if (!rdev->ops->set_wiphy_params)
2383 return -EOPNOTSUPP;
b9a5f8ca
JM		 2384
2385 old_retry_short = rdev->wiphy.retry_short;
2386 old_retry_long = rdev->wiphy.retry_long;
2387 old_frag_threshold = rdev->wiphy.frag_threshold;
2388 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2389 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2390
2391 if (changed & WIPHY_PARAM_RETRY_SHORT)
2392 rdev->wiphy.retry_short = retry_short;
2393 if (changed & WIPHY_PARAM_RETRY_LONG)
2394 rdev->wiphy.retry_long = retry_long;
2395 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2396 rdev->wiphy.frag_threshold = frag_threshold;
2397 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2398 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2399 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2400 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2401
e35e4d28 2402 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2403 if (result) {
2404 rdev->wiphy.retry_short = old_retry_short;
2405 rdev->wiphy.retry_long = old_retry_long;
2406 rdev->wiphy.frag_threshold = old_frag_threshold;
2407 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2408 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2409 return result;
b9a5f8ca
JM		 2410 }
2411 }
7f2b8562 2412 return 0;
55682965
JB		 2413}
2414
71bbc994
JB		 2415static inline u64 wdev_id(struct wireless_dev *wdev)
2416{
2417 return (u64)wdev->identifier |
f26cbf40 2418 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2419}
55682965 2420
683b6d3b 2421static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2422 const struct cfg80211_chan_def *chandef)
683b6d3b 2423{
601555cd
JB		 2424 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2425 return -EINVAL;
3d9d1d66 2426
683b6d3b
JB		 2427 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2428 chandef->chan->center_freq))
2429 return -ENOBUFS;
3d9d1d66
JB		 2430 switch (chandef->width) {
2431 case NL80211_CHAN_WIDTH_20_NOHT:
2432 case NL80211_CHAN_WIDTH_20:
2433 case NL80211_CHAN_WIDTH_40:
2434 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2435 cfg80211_get_chandef_type(chandef)))
2436 return -ENOBUFS;
2437 break;
2438 default:
2439 break;
2440 }
2441 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2442 return -ENOBUFS;
2443 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2444 return -ENOBUFS;
2445 if (chandef->center_freq2 &&
2446 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2447 return -ENOBUFS;
2448 return 0;
2449}
2450
15e47304 2451static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2452 struct cfg80211_registered_device *rdev,
8f894be2 2453 struct wireless_dev *wdev, bool removal)
55682965 2454{
72fb2abc 2455 struct net_device *dev = wdev->netdev;
8f894be2 2456 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2457 void *hdr;
2458
8f894be2
TB		 2459 if (removal)
2460 cmd = NL80211_CMD_DEL_INTERFACE;
2461
2462 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2463 if (!hdr)
2464 return -1;
2465
72fb2abc
JB		 2466 if (dev &&
2467 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2468 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2469 goto nla_put_failure;
2470
2471 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2472 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2473 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2474 NL80211_ATTR_PAD) ||
98104fde 2475 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2476 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2477 rdev->devlist_generation ^
2478 (cfg80211_rdev_list_generation << 2)))
2479 goto nla_put_failure;
f5ea9120 2480
5b7ccaf3 2481 if (rdev->ops->get_channel) {
683b6d3b
JB		 2482 int ret;
2483 struct cfg80211_chan_def chandef;
2484
2485 ret = rdev_get_channel(rdev, wdev, &chandef);
2486 if (ret == 0) {
2487 if (nl80211_send_chandef(msg, &chandef))
2488 goto nla_put_failure;
2489 }
d91df0e3
PF		 2490 }
2491
d55d0d59
RM		 2492 if (rdev->ops->get_tx_power) {
2493 int dbm, ret;
2494
2495 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2496 if (ret == 0 &&
2497 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2498 DBM_TO_MBM(dbm)))
2499 goto nla_put_failure;
2500 }
2501
b84e7a05
AQ		 2502 if (wdev->ssid_len) {
2503 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2504 goto nla_put_failure;
2505 }
2506
053c095a
JB		 2507 genlmsg_end(msg, hdr);
2508 return 0;
55682965
JB		 2509
2510 nla_put_failure:
bc3ed28c
TG		 2511 genlmsg_cancel(msg, hdr);
2512 return -EMSGSIZE;
55682965
JB		 2513}
2514
2515static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2516{
2517 int wp_idx = 0;
2518 int if_idx = 0;
2519 int wp_start = cb->args[0];
2520 int if_start = cb->args[1];
f5ea9120 2521 struct cfg80211_registered_device *rdev;
55682965
JB		 2522 struct wireless_dev *wdev;
2523
5fe231e8 2524 rtnl_lock();
f5ea9120
JB		 2525 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2526 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2527 continue;
bba95fef
JB		 2528 if (wp_idx < wp_start) {
2529 wp_idx++;
55682965 2530 continue;
bba95fef 2531 }
55682965
JB		 2532 if_idx = 0;
2533
53873f13 2534 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2535 if (if_idx < if_start) {
2536 if_idx++;
55682965 2537 continue;
bba95fef 2538 }
15e47304 2539 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2540 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2541 rdev, wdev, false) < 0) {
bba95fef
JB		 2542 goto out;
2543 }
2544 if_idx++;
55682965 2545 }
bba95fef
JB		 2546
2547 wp_idx++;
55682965 2548 }
bba95fef 2549 out:
5fe231e8 2550 rtnl_unlock();
55682965
JB		 2551
2552 cb->args[0] = wp_idx;
2553 cb->args[1] = if_idx;
2554
2555 return skb->len;
2556}
2557
2558static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2559{
2560 struct sk_buff *msg;
1b8ec87a 2561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2562 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2563
fd2120ca 2564 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2565 if (!msg)
4c476991 2566 return -ENOMEM;
55682965 2567
15e47304 2568 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2569 rdev, wdev, false) < 0) {
4c476991
JB		 2570 nlmsg_free(msg);
2571 return -ENOBUFS;
2572 }
55682965 2573
134e6375 2574 return genlmsg_reply(msg, info);
55682965
JB		 2575}
2576
66f7ac50
MW		 2577static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2578 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2579 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2580 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2581 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2582 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2583 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2584};
2585
2586static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2587{
2588 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2589 int flag;
2590
2591 *mntrflags = 0;
2592
2593 if (!nla)
2594 return -EINVAL;
2595
2596 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2597 nla, mntr_flags_policy))
2598 return -EINVAL;
2599
2600 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2601 if (flags[flag])
2602 *mntrflags |= (1<<flag);
2603
2604 return 0;
2605}
2606
9bc383de 2607static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2608 struct net_device *netdev, u8 use_4addr,
2609 enum nl80211_iftype iftype)
9bc383de 2610{
ad4bb6f8 2611 if (!use_4addr) {
f350a0a8 2612 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2613 return -EBUSY;
9bc383de 2614 return 0;
ad4bb6f8 2615 }
9bc383de
JB		 2616
2617 switch (iftype) {
2618 case NL80211_IFTYPE_AP_VLAN:
2619 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2620 return 0;
2621 break;
2622 case NL80211_IFTYPE_STATION:
2623 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2624 return 0;
2625 break;
2626 default:
2627 break;
2628 }
2629
2630 return -EOPNOTSUPP;
2631}
2632
55682965
JB		 2633static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2634{
4c476991 2635 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2636 struct vif_params params;
e36d56b6 2637 int err;
04a773ad 2638 enum nl80211_iftype otype, ntype;
4c476991 2639 struct net_device *dev = info->user_ptr[1];
92ffe055 2640 u32 _flags, *flags = NULL;
ac7f9cfa 2641 bool change = false;
55682965 2642
2ec600d6
LCC		 2643 memset(&params, 0, sizeof(params));
2644
04a773ad 2645 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2646
723b038d 2647 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2648 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2649 if (otype != ntype)
ac7f9cfa 2650 change = true;
4c476991
JB		 2651 if (ntype > NL80211_IFTYPE_MAX)
2652 return -EINVAL;
723b038d
JB		 2653 }
2654
92ffe055 2655 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2656 struct wireless_dev *wdev = dev->ieee80211_ptr;
2657
4c476991
JB		 2658 if (ntype != NL80211_IFTYPE_MESH_POINT)
2659 return -EINVAL;
29cbe68c
JB		 2660 if (netif_running(dev))
2661 return -EBUSY;
2662
2663 wdev_lock(wdev);
2664 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2665 IEEE80211_MAX_MESH_ID_LEN);
2666 wdev->mesh_id_up_len =
2667 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2668 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2669 wdev->mesh_id_up_len);
2670 wdev_unlock(wdev);
2ec600d6
LCC		 2671 }
2672
8b787643
FF		 2673 if (info->attrs[NL80211_ATTR_4ADDR]) {
2674 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2675 change = true;
ad4bb6f8 2676 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2677 if (err)
4c476991 2678 return err;
8b787643
FF		 2679 } else {
2680 params.use_4addr = -1;
2681 }
2682
92ffe055 2683 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2684 if (ntype != NL80211_IFTYPE_MONITOR)
2685 return -EINVAL;
92ffe055
JB		 2686 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2687 &_flags);
ac7f9cfa 2688 if (err)
4c476991 2689 return err;
ac7f9cfa
JB		 2690
2691 flags = &_flags;
2692 change = true;
92ffe055 2693 }
3b85875a 2694
18003297 2695 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2696 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2697 return -EOPNOTSUPP;
2698
ac7f9cfa 2699 if (change)
3d54d255 2700 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2701 else
2702 err = 0;
60719ffd 2703
9bc383de
JB		 2704 if (!err && params.use_4addr != -1)
2705 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2706
55682965
JB		 2707 return err;
2708}
2709
2710static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2711{
4c476991 2712 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2713 struct vif_params params;
84efbb84 2714 struct wireless_dev *wdev;
8f894be2 2715 struct sk_buff *msg, *event;
55682965
JB		 2716 int err;
2717 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2718 u32 flags;
55682965 2719
78f22b6a
JB		 2720 /* to avoid failing a new interface creation due to pending removal */
2721 cfg80211_destroy_ifaces(rdev);
2722
2ec600d6
LCC		 2723 memset(&params, 0, sizeof(params));
2724
55682965
JB		 2725 if (!info->attrs[NL80211_ATTR_IFNAME])
2726 return -EINVAL;
2727
2728 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2729 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2730 if (type > NL80211_IFTYPE_MAX)
2731 return -EINVAL;
2732 }
2733
79c97e97 2734 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2735 !(rdev->wiphy.interface_modes & (1 << type)))
2736 return -EOPNOTSUPP;
55682965 2737
e8f479b1
BG		 2738 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2739 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2740 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2741 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2742 ETH_ALEN);
2743 if (!is_valid_ether_addr(params.macaddr))
2744 return -EADDRNOTAVAIL;
2745 }
2746
9bc383de 2747 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2748 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2749 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2750 if (err)
4c476991 2751 return err;
9bc383de 2752 }
8b787643 2753
66f7ac50
MW		 2754 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2755 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2756 &flags);
e057d3c3 2757
18003297 2758 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2759 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2760 return -EOPNOTSUPP;
2761
a18c7192
JB		 2762 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2763 if (!msg)
2764 return -ENOMEM;
2765
e35e4d28
HG		 2766 wdev = rdev_add_virtual_intf(rdev,
2767 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2768 NET_NAME_USER, type, err ? NULL : &flags,
2769 &params);
d687cbb7
RM		 2770 if (WARN_ON(!wdev)) {
2771 nlmsg_free(msg);
2772 return -EPROTO;
2773 } else if (IS_ERR(wdev)) {
1c90f9d4 2774 nlmsg_free(msg);
84efbb84 2775 return PTR_ERR(wdev);
1c90f9d4 2776 }
2ec600d6 2777
18e5ca65 2778 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2779 wdev->owner_nlportid = info->snd_portid;
2780
98104fde
JB		 2781 switch (type) {
2782 case NL80211_IFTYPE_MESH_POINT:
2783 if (!info->attrs[NL80211_ATTR_MESH_ID])
2784 break;
29cbe68c
JB		 2785 wdev_lock(wdev);
2786 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2787 IEEE80211_MAX_MESH_ID_LEN);
2788 wdev->mesh_id_up_len =
2789 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2790 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2791 wdev->mesh_id_up_len);
2792 wdev_unlock(wdev);
98104fde
JB		 2793 break;
2794 case NL80211_IFTYPE_P2P_DEVICE:
2795 /*
2796 * P2P Device doesn't have a netdev, so doesn't go
2797 * through the netdev notifier and must be added here
2798 */
2799 mutex_init(&wdev->mtx);
2800 INIT_LIST_HEAD(&wdev->event_list);
2801 spin_lock_init(&wdev->event_lock);
2802 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2803 spin_lock_init(&wdev->mgmt_registrations_lock);
2804
98104fde 2805 wdev->identifier = ++rdev->wdev_id;
53873f13 2806 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2807 rdev->devlist_generation++;
98104fde
JB		 2808 break;
2809 default:
2810 break;
29cbe68c
JB		 2811 }
2812
15e47304 2813 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2814 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2815 nlmsg_free(msg);
2816 return -ENOBUFS;
2817 }
2818
8f894be2
TB		 2819 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2820 if (event) {
2821 if (nl80211_send_iface(event, 0, 0, 0,
2822 rdev, wdev, false) < 0) {
2823 nlmsg_free(event);
2824 goto out;
2825 }
2826
2827 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2828 event, 0, NL80211_MCGRP_CONFIG,
2829 GFP_KERNEL);
2830 }
2831
2832out:
1c90f9d4 2833 return genlmsg_reply(msg, info);
55682965
JB		 2834}
2835
2836static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2837{
4c476991 2838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2839 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2840 struct sk_buff *msg;
2841 int status;
55682965 2842
4c476991
JB		 2843 if (!rdev->ops->del_virtual_intf)
2844 return -EOPNOTSUPP;
55682965 2845
8f894be2
TB		 2846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2847 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2848 nlmsg_free(msg);
2849 msg = NULL;
2850 }
2851
84efbb84
JB		 2852 /*
2853 * If we remove a wireless device without a netdev then clear
2854 * user_ptr[1] so that nl80211_post_doit won't dereference it
2855 * to check if it needs to do dev_put(). Otherwise it crashes
2856 * since the wdev has been freed, unlike with a netdev where
2857 * we need the dev_put() for the netdev to really be freed.
2858 */
2859 if (!wdev->netdev)
2860 info->user_ptr[1] = NULL;
2861
8f894be2
TB		 2862 status = rdev_del_virtual_intf(rdev, wdev);
2863 if (status >= 0 && msg)
2864 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2865 msg, 0, NL80211_MCGRP_CONFIG,
2866 GFP_KERNEL);
2867 else
2868 nlmsg_free(msg);
2869
2870 return status;
55682965
JB		 2871}
2872
1d9d9213
SW		 2873static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2874{
2875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2876 struct net_device *dev = info->user_ptr[1];
2877 u16 noack_map;
2878
2879 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2880 return -EINVAL;
2881
2882 if (!rdev->ops->set_noack_map)
2883 return -EOPNOTSUPP;
2884
2885 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2886
e35e4d28 2887 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2888}
2889
41ade00f
JB		 2890struct get_key_cookie {
2891 struct sk_buff *msg;
2892 int error;
b9454e83 2893 int idx;
41ade00f
JB		 2894};
2895
2896static void get_key_callback(void *c, struct key_params *params)
2897{
b9454e83 2898 struct nlattr *key;
41ade00f
JB		 2899 struct get_key_cookie *cookie = c;
2900
9360ffd1
DM		 2901 if ((params->key &&
2902 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2903 params->key_len, params->key)) ||
2904 (params->seq &&
2905 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2906 params->seq_len, params->seq)) ||
2907 (params->cipher &&
2908 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2909 params->cipher)))
2910 goto nla_put_failure;
41ade00f 2911
b9454e83
JB		 2912 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2913 if (!key)
2914 goto nla_put_failure;
2915
9360ffd1
DM		 2916 if ((params->key &&
2917 nla_put(cookie->msg, NL80211_KEY_DATA,
2918 params->key_len, params->key)) ||
2919 (params->seq &&
2920 nla_put(cookie->msg, NL80211_KEY_SEQ,
2921 params->seq_len, params->seq)) ||
2922 (params->cipher &&
2923 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2924 params->cipher)))
2925 goto nla_put_failure;
b9454e83 2926
9360ffd1
DM		 2927 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2928 goto nla_put_failure;
b9454e83
JB		 2929
2930 nla_nest_end(cookie->msg, key);
2931
41ade00f
JB		 2932 return;
2933 nla_put_failure:
2934 cookie->error = 1;
2935}
2936
2937static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2938{
4c476991 2939 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2940 int err;
4c476991 2941 struct net_device *dev = info->user_ptr[1];
41ade00f 2942 u8 key_idx = 0;
e31b8213
JB		 2943 const u8 *mac_addr = NULL;
2944 bool pairwise;
41ade00f
JB		 2945 struct get_key_cookie cookie = {
2946 .error = 0,
2947 };
2948 void *hdr;
2949 struct sk_buff *msg;
2950
2951 if (info->attrs[NL80211_ATTR_KEY_IDX])
2952 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2953
3cfcf6ac 2954 if (key_idx > 5)
41ade00f
JB		 2955 return -EINVAL;
2956
2957 if (info->attrs[NL80211_ATTR_MAC])
2958 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2959
e31b8213
JB		 2960 pairwise = !!mac_addr;
2961 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2962 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2963 if (kt >= NUM_NL80211_KEYTYPES)
2964 return -EINVAL;
2965 if (kt != NL80211_KEYTYPE_GROUP &&
2966 kt != NL80211_KEYTYPE_PAIRWISE)
2967 return -EINVAL;
2968 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2969 }
2970
4c476991
JB		 2971 if (!rdev->ops->get_key)
2972 return -EOPNOTSUPP;
41ade00f 2973
0fa7b391
JB		 2974 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2975 return -ENOENT;
2976
fd2120ca 2977 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2978 if (!msg)
2979 return -ENOMEM;
41ade00f 2980
15e47304 2981 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2982 NL80211_CMD_NEW_KEY);
cb35fba3 2983 if (!hdr)
9fe271af 2984 goto nla_put_failure;
41ade00f
JB		 2985
2986 cookie.msg = msg;
b9454e83 2987 cookie.idx = key_idx;
41ade00f 2988
9360ffd1
DM		 2989 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2990 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2991 goto nla_put_failure;
2992 if (mac_addr &&
2993 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2994 goto nla_put_failure;
41ade00f 2995
e35e4d28
HG		 2996 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2997 get_key_callback);
41ade00f
JB		 2998
2999 if (err)
6c95e2a2 3000 goto free_msg;
41ade00f
JB		 3001
3002 if (cookie.error)
3003 goto nla_put_failure;
3004
3005 genlmsg_end(msg, hdr);
4c476991 3006 return genlmsg_reply(msg, info);
41ade00f
JB		 3007
3008 nla_put_failure:
3009 err = -ENOBUFS;
6c95e2a2 3010 free_msg:
41ade00f 3011 nlmsg_free(msg);
41ade00f
JB		 3012 return err;
3013}
3014
3015static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3016{
4c476991 3017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3018 struct key_parse key;
41ade00f 3019 int err;
4c476991 3020 struct net_device *dev = info->user_ptr[1];
41ade00f 3021
b9454e83
JB		 3022 err = nl80211_parse_key(info, &key);
3023 if (err)
3024 return err;
41ade00f 3025
b9454e83 3026 if (key.idx < 0)
41ade00f
JB		 3027 return -EINVAL;
3028
b9454e83
JB		 3029 /* only support setting default key */
3030 if (!key.def && !key.defmgmt)
41ade00f
JB		 3031 return -EINVAL;
3032
dbd2fd65 3033 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3034
dbd2fd65
JB		 3035 if (key.def) {
3036 if (!rdev->ops->set_default_key) {
3037 err = -EOPNOTSUPP;
3038 goto out;
3039 }
41ade00f 3040
dbd2fd65
JB		 3041 err = nl80211_key_allowed(dev->ieee80211_ptr);
3042 if (err)
3043 goto out;
3044
e35e4d28 3045 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3046 key.def_uni, key.def_multi);
3047
3048 if (err)
3049 goto out;
fffd0934 3050
3d23e349 3051#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3052 dev->ieee80211_ptr->wext.default_key = key.idx;
3053#endif
3054 } else {
3055 if (key.def_uni || !key.def_multi) {
3056 err = -EINVAL;
3057 goto out;
3058 }
3059
3060 if (!rdev->ops->set_default_mgmt_key) {
3061 err = -EOPNOTSUPP;
3062 goto out;
3063 }
3064
3065 err = nl80211_key_allowed(dev->ieee80211_ptr);
3066 if (err)
3067 goto out;
3068
e35e4d28 3069 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3070 if (err)
3071 goto out;
3072
3073#ifdef CONFIG_CFG80211_WEXT
3074 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3075#endif
dbd2fd65
JB		 3076 }
3077
3078 out:
fffd0934 3079 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3080
41ade00f
JB		 3081 return err;
3082}
3083
3084static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3085{
4c476991 3086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3087 int err;
4c476991 3088 struct net_device *dev = info->user_ptr[1];
b9454e83 3089 struct key_parse key;
e31b8213 3090 const u8 *mac_addr = NULL;
41ade00f 3091
b9454e83
JB		 3092 err = nl80211_parse_key(info, &key);
3093 if (err)
3094 return err;
41ade00f 3095
b9454e83 3096 if (!key.p.key)
41ade00f
JB		 3097 return -EINVAL;
3098
41ade00f
JB		 3099 if (info->attrs[NL80211_ATTR_MAC])
3100 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3101
e31b8213
JB		 3102 if (key.type == -1) {
3103 if (mac_addr)
3104 key.type = NL80211_KEYTYPE_PAIRWISE;
3105 else
3106 key.type = NL80211_KEYTYPE_GROUP;
3107 }
3108
3109 /* for now */
3110 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3111 key.type != NL80211_KEYTYPE_GROUP)
3112 return -EINVAL;
3113
4c476991
JB		 3114 if (!rdev->ops->add_key)
3115 return -EOPNOTSUPP;
25e47c18 3116
e31b8213
JB		 3117 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3118 key.type == NL80211_KEYTYPE_PAIRWISE,
3119 mac_addr))
4c476991 3120 return -EINVAL;
41ade00f 3121
fffd0934
JB		 3122 wdev_lock(dev->ieee80211_ptr);
3123 err = nl80211_key_allowed(dev->ieee80211_ptr);
3124 if (!err)
e35e4d28
HG		 3125 err = rdev_add_key(rdev, dev, key.idx,
3126 key.type == NL80211_KEYTYPE_PAIRWISE,
3127 mac_addr, &key.p);
fffd0934 3128 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3129
41ade00f
JB		 3130 return err;
3131}
3132
3133static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3134{
4c476991 3135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3136 int err;
4c476991 3137 struct net_device *dev = info->user_ptr[1];
41ade00f 3138 u8 *mac_addr = NULL;
b9454e83 3139 struct key_parse key;
41ade00f 3140
b9454e83
JB		 3141 err = nl80211_parse_key(info, &key);
3142 if (err)
3143 return err;
41ade00f
JB		 3144
3145 if (info->attrs[NL80211_ATTR_MAC])
3146 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3147
e31b8213
JB		 3148 if (key.type == -1) {
3149 if (mac_addr)
3150 key.type = NL80211_KEYTYPE_PAIRWISE;
3151 else
3152 key.type = NL80211_KEYTYPE_GROUP;
3153 }
3154
3155 /* for now */
3156 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3157 key.type != NL80211_KEYTYPE_GROUP)
3158 return -EINVAL;
3159
4c476991
JB		 3160 if (!rdev->ops->del_key)
3161 return -EOPNOTSUPP;
41ade00f 3162
fffd0934
JB		 3163 wdev_lock(dev->ieee80211_ptr);
3164 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3165
0fa7b391 3166 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3167 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3168 err = -ENOENT;
3169
fffd0934 3170 if (!err)
e35e4d28
HG		 3171 err = rdev_del_key(rdev, dev, key.idx,
3172 key.type == NL80211_KEYTYPE_PAIRWISE,
3173 mac_addr);
41ade00f 3174
3d23e349 3175#ifdef CONFIG_CFG80211_WEXT
08645126 3176 if (!err) {
b9454e83 3177 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3178 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3179 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3180 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3181 }
3182#endif
fffd0934 3183 wdev_unlock(dev->ieee80211_ptr);
08645126 3184
41ade00f
JB		 3185 return err;
3186}
3187
77765eaf
VT		 3188/* This function returns an error or the number of nested attributes */
3189static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3190{
3191 struct nlattr *attr;
3192 int n_entries = 0, tmp;
3193
3194 nla_for_each_nested(attr, nl_attr, tmp) {
3195 if (nla_len(attr) != ETH_ALEN)
3196 return -EINVAL;
3197
3198 n_entries++;
3199 }
3200
3201 return n_entries;
3202}
3203
3204/*
3205 * This function parses ACL information and allocates memory for ACL data.
3206 * On successful return, the calling function is responsible to free the
3207 * ACL buffer returned by this function.
3208 */
3209static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3210 struct genl_info *info)
3211{
3212 enum nl80211_acl_policy acl_policy;
3213 struct nlattr *attr;
3214 struct cfg80211_acl_data *acl;
3215 int i = 0, n_entries, tmp;
3216
3217 if (!wiphy->max_acl_mac_addrs)
3218 return ERR_PTR(-EOPNOTSUPP);
3219
3220 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3221 return ERR_PTR(-EINVAL);
3222
3223 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3224 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3225 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3226 return ERR_PTR(-EINVAL);
3227
3228 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3229 return ERR_PTR(-EINVAL);
3230
3231 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3232 if (n_entries < 0)
3233 return ERR_PTR(n_entries);
3234
3235 if (n_entries > wiphy->max_acl_mac_addrs)
3236 return ERR_PTR(-ENOTSUPP);
3237
3238 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3239 GFP_KERNEL);
3240 if (!acl)
3241 return ERR_PTR(-ENOMEM);
3242
3243 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3244 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3245 i++;
3246 }
3247
3248 acl->n_acl_entries = n_entries;
3249 acl->acl_policy = acl_policy;
3250
3251 return acl;
3252}
3253
3254static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3255{
3256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3257 struct net_device *dev = info->user_ptr[1];
3258 struct cfg80211_acl_data *acl;
3259 int err;
3260
3261 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3262 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3263 return -EOPNOTSUPP;
3264
3265 if (!dev->ieee80211_ptr->beacon_interval)
3266 return -EINVAL;
3267
3268 acl = parse_acl_data(&rdev->wiphy, info);
3269 if (IS_ERR(acl))
3270 return PTR_ERR(acl);
3271
3272 err = rdev_set_mac_acl(rdev, dev, acl);
3273
3274 kfree(acl);
3275
3276 return err;
3277}
3278
a1193be8 3279static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3280 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3281{
8860020e 3282 bool haveinfo = false;
ed1b6cc7 3283
a1193be8
SW		 3284 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3285 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3286 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3287 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3288 return -EINVAL;
3289
8860020e 3290 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3291
a1193be8
SW		 3292 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3293 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3294 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3295 if (!bcn->head_len)
3296 return -EINVAL;
3297 haveinfo = true;
ed1b6cc7
JB		 3298 }
3299
a1193be8
SW		 3300 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3301 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3302 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3303 haveinfo = true;
ed1b6cc7
JB		 3304 }
3305
4c476991
JB		 3306 if (!haveinfo)
3307 return -EINVAL;
3b85875a 3308
a1193be8
SW		 3309 if (attrs[NL80211_ATTR_IE]) {
3310 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3311 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3312 }
3313
a1193be8 3314 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3315 bcn->proberesp_ies =
a1193be8 3316 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3317 bcn->proberesp_ies_len =
a1193be8 3318 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3319 }
3320
a1193be8 3321 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3322 bcn->assocresp_ies =
a1193be8 3323 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3324 bcn->assocresp_ies_len =
a1193be8 3325 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3326 }
3327
a1193be8
SW		 3328 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3329 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3330 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3331 }
3332
8860020e
JB		 3333 return 0;
3334}
3335
46c1dd0c
FF		 3336static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3337 struct cfg80211_ap_settings *params)
3338{
3339 struct wireless_dev *wdev;
3340 bool ret = false;
3341
53873f13 3342 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3343 if (wdev->iftype != NL80211_IFTYPE_AP &&
3344 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3345 continue;
3346
683b6d3b 3347 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3348 continue;
3349
683b6d3b 3350 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3351 ret = true;
3352 break;
3353 }
3354
46c1dd0c
FF		 3355 return ret;
3356}
3357
e39e5b5e
JM		 3358static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3359 enum nl80211_auth_type auth_type,
3360 enum nl80211_commands cmd)
3361{
3362 if (auth_type > NL80211_AUTHTYPE_MAX)
3363 return false;
3364
3365 switch (cmd) {
3366 case NL80211_CMD_AUTHENTICATE:
3367 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3368 auth_type == NL80211_AUTHTYPE_SAE)
3369 return false;
3370 return true;
3371 case NL80211_CMD_CONNECT:
3372 case NL80211_CMD_START_AP:
3373 /* SAE not supported yet */
3374 if (auth_type == NL80211_AUTHTYPE_SAE)
3375 return false;
3376 return true;
3377 default:
3378 return false;
3379 }
3380}
3381
8860020e
JB		 3382static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3383{
3384 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3385 struct net_device *dev = info->user_ptr[1];
3386 struct wireless_dev *wdev = dev->ieee80211_ptr;
3387 struct cfg80211_ap_settings params;
3388 int err;
3389
3390 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3392 return -EOPNOTSUPP;
3393
3394 if (!rdev->ops->start_ap)
3395 return -EOPNOTSUPP;
3396
3397 if (wdev->beacon_interval)
3398 return -EALREADY;
3399
3400 memset(&params, 0, sizeof(params));
3401
3402 /* these are required for START_AP */
3403 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3404 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3405 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3406 return -EINVAL;
3407
a1193be8 3408 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3409 if (err)
3410 return err;
3411
3412 params.beacon_interval =
3413 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3414 params.dtim_period =
3415 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3416
3417 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3418 if (err)
3419 return err;
3420
3421 /*
3422 * In theory, some of these attributes should be required here
3423 * but since they were not used when the command was originally
3424 * added, keep them optional for old user space programs to let
3425 * them continue to work with drivers that do not need the
3426 * additional information -- drivers must check!
3427 */
3428 if (info->attrs[NL80211_ATTR_SSID]) {
3429 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3430 params.ssid_len =
3431 nla_len(info->attrs[NL80211_ATTR_SSID]);
3432 if (params.ssid_len == 0 ||
3433 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3434 return -EINVAL;
3435 }
3436
3437 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3438 params.hidden_ssid = nla_get_u32(
3439 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3440 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3441 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3442 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3443 return -EINVAL;
3444 }
3445
3446 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3447
3448 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3449 params.auth_type = nla_get_u32(
3450 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3451 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3452 NL80211_CMD_START_AP))
8860020e
JB		 3453 return -EINVAL;
3454 } else
3455 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3456
3457 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3458 NL80211_MAX_NR_CIPHER_SUITES);
3459 if (err)
3460 return err;
3461
1b658f11
VT		 3462 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3463 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3464 return -EOPNOTSUPP;
3465 params.inactivity_timeout = nla_get_u16(
3466 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3467 }
3468
53cabad7
JB		 3469 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3470 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3471 return -EINVAL;
3472 params.p2p_ctwindow =
3473 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3474 if (params.p2p_ctwindow > 127)
3475 return -EINVAL;
3476 if (params.p2p_ctwindow != 0 &&
3477 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3478 return -EINVAL;
3479 }
3480
3481 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3482 u8 tmp;
3483
3484 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3485 return -EINVAL;
3486 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3487 if (tmp > 1)
3488 return -EINVAL;
3489 params.p2p_opp_ps = tmp;
3490 if (params.p2p_opp_ps != 0 &&
3491 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3492 return -EINVAL;
3493 }
3494
aa430da4 3495 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3496 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3497 if (err)
3498 return err;
3499 } else if (wdev->preset_chandef.chan) {
3500 params.chandef = wdev->preset_chandef;
46c1dd0c 3501 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3502 return -EINVAL;
3503
923b352f
AN		 3504 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3505 wdev->iftype))
aa430da4
JB		 3506 return -EINVAL;
3507
18998c38
EP		 3508 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3509 params.smps_mode =
3510 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3511 switch (params.smps_mode) {
3512 case NL80211_SMPS_OFF:
3513 break;
3514 case NL80211_SMPS_STATIC:
3515 if (!(rdev->wiphy.features &
3516 NL80211_FEATURE_STATIC_SMPS))
3517 return -EINVAL;
3518 break;
3519 case NL80211_SMPS_DYNAMIC:
3520 if (!(rdev->wiphy.features &
3521 NL80211_FEATURE_DYNAMIC_SMPS))
3522 return -EINVAL;
3523 break;
3524 default:
3525 return -EINVAL;
3526 }
3527 } else {
3528 params.smps_mode = NL80211_SMPS_OFF;
3529 }
3530
4baf6bea
OO		 3531 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3532 params.acl = parse_acl_data(&rdev->wiphy, info);
3533 if (IS_ERR(params.acl))
3534 return PTR_ERR(params.acl);
3535 }
3536
34d50519 3537 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 3538 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
34d50519
LD		 3539 return -EOPNOTSUPP;
3540
c56589ed 3541 wdev_lock(wdev);
e35e4d28 3542 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3543 if (!err) {
683b6d3b 3544 wdev->preset_chandef = params.chandef;
8860020e 3545 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3546 wdev->chandef = params.chandef;
06e191e2
AQ		 3547 wdev->ssid_len = params.ssid_len;
3548 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3549 }
c56589ed 3550 wdev_unlock(wdev);
77765eaf
VT		 3551
3552 kfree(params.acl);
3553
56d1893d 3554 return err;
ed1b6cc7
JB		 3555}
3556
8860020e
JB		 3557static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3558{
3559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3560 struct net_device *dev = info->user_ptr[1];
3561 struct wireless_dev *wdev = dev->ieee80211_ptr;
3562 struct cfg80211_beacon_data params;
3563 int err;
3564
3565 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3566 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3567 return -EOPNOTSUPP;
3568
3569 if (!rdev->ops->change_beacon)
3570 return -EOPNOTSUPP;
3571
3572 if (!wdev->beacon_interval)
3573 return -EINVAL;
3574
a1193be8 3575 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3576 if (err)
3577 return err;
3578
c56589ed
SW		 3579 wdev_lock(wdev);
3580 err = rdev_change_beacon(rdev, dev, &params);
3581 wdev_unlock(wdev);
3582
3583 return err;
8860020e
JB		 3584}
3585
3586static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3587{
4c476991
JB		 3588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3589 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3590
7c8d5e03 3591 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3592}
3593
5727ef1b
JB		 3594static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3595 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3596 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3597 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3598 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3599 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3600 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3601};
3602
eccb8e8f 3603static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3604 enum nl80211_iftype iftype,
eccb8e8f 3605 struct station_parameters *params)
5727ef1b
JB		 3606{
3607 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3608 struct nlattr *nla;
5727ef1b
JB		 3609 int flag;
3610
eccb8e8f
JB		 3611 /*
3612 * Try parsing the new attribute first so userspace
3613 * can specify both for older kernels.
3614 */
3615 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3616 if (nla) {
3617 struct nl80211_sta_flag_update *sta_flags;
3618
3619 sta_flags = nla_data(nla);
3620 params->sta_flags_mask = sta_flags->mask;
3621 params->sta_flags_set = sta_flags->set;
77ee7c89 3622 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3623 if ((params->sta_flags_mask |
3624 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3625 return -EINVAL;
3626 return 0;
3627 }
3628
3629 /* if present, parse the old attribute */
5727ef1b 3630
eccb8e8f 3631 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3632 if (!nla)
3633 return 0;
3634
3635 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3636 nla, sta_flags_policy))
3637 return -EINVAL;
3638
bdd3ae3d
JB		 3639 /*
3640 * Only allow certain flags for interface types so that
3641 * other attributes are silently ignored. Remember that
3642 * this is backward compatibility code with old userspace
3643 * and shouldn't be hit in other cases anyway.
3644 */
3645 switch (iftype) {
3646 case NL80211_IFTYPE_AP:
3647 case NL80211_IFTYPE_AP_VLAN:
3648 case NL80211_IFTYPE_P2P_GO:
3649 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3650 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3651 BIT(NL80211_STA_FLAG_WME) |
3652 BIT(NL80211_STA_FLAG_MFP);
3653 break;
3654 case NL80211_IFTYPE_P2P_CLIENT:
3655 case NL80211_IFTYPE_STATION:
3656 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3657 BIT(NL80211_STA_FLAG_TDLS_PEER);
3658 break;
3659 case NL80211_IFTYPE_MESH_POINT:
3660 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3661 BIT(NL80211_STA_FLAG_MFP) |
3662 BIT(NL80211_STA_FLAG_AUTHORIZED);
3663 default:
3664 return -EINVAL;
3665 }
5727ef1b 3666
3383b5a6
JB		 3667 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3668 if (flags[flag]) {
eccb8e8f 3669 params->sta_flags_set |= (1<<flag);
5727ef1b 3670
3383b5a6
JB		 3671 /* no longer support new API additions in old API */
3672 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3673 return -EINVAL;
3674 }
3675 }
3676
5727ef1b
JB		 3677 return 0;
3678}
3679
c8dcfd8a
FF		 3680static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3681 int attr)
3682{
3683 struct nlattr *rate;
8eb41c8d
VK		 3684 u32 bitrate;
3685 u16 bitrate_compat;
b51f3bee 3686 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3687
3688 rate = nla_nest_start(msg, attr);
3689 if (!rate)
db9c64cf 3690 return false;
c8dcfd8a
FF		 3691
3692 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3693 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3694 /* report 16-bit bitrate only if we can */
3695 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3696 if (bitrate > 0 &&
3697 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3698 return false;
3699 if (bitrate_compat > 0 &&
3700 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3701 return false;
3702
b51f3bee
JB		 3703 switch (info->bw) {
3704 case RATE_INFO_BW_5:
3705 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3706 break;
3707 case RATE_INFO_BW_10:
3708 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3709 break;
3710 default:
3711 WARN_ON(1);
3712 /* fall through */
3713 case RATE_INFO_BW_20:
3714 rate_flg = 0;
3715 break;
3716 case RATE_INFO_BW_40:
3717 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3718 break;
3719 case RATE_INFO_BW_80:
3720 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3721 break;
3722 case RATE_INFO_BW_160:
3723 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3724 break;
3725 }
3726
3727 if (rate_flg && nla_put_flag(msg, rate_flg))
3728 return false;
3729
db9c64cf
JB		 3730 if (info->flags & RATE_INFO_FLAGS_MCS) {
3731 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3732 return false;
db9c64cf
JB		 3733 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3734 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3735 return false;
3736 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3737 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3738 return false;
3739 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3740 return false;
db9c64cf
JB		 3741 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3742 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3743 return false;
3744 }
c8dcfd8a
FF		 3745
3746 nla_nest_end(msg, rate);
3747 return true;
c8dcfd8a
FF		 3748}
3749
119363c7
FF		 3750static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3751 int id)
3752{
3753 void *attr;
3754 int i = 0;
3755
3756 if (!mask)
3757 return true;
3758
3759 attr = nla_nest_start(msg, id);
3760 if (!attr)
3761 return false;
3762
3763 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3764 if (!(mask & BIT(i)))
3765 continue;
3766
3767 if (nla_put_u8(msg, i, signal[i]))
3768 return false;
3769 }
3770
3771 nla_nest_end(msg, attr);
3772
3773 return true;
3774}
3775
cf5ead82
JB		 3776static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3777 u32 seq, int flags,
66266b3a
JL		 3778 struct cfg80211_registered_device *rdev,
3779 struct net_device *dev,
98b62183 3780 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3781{
3782 void *hdr;
f4263c98 3783 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3784
cf5ead82 3785 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3786 if (!hdr)
3787 return -1;
3788
9360ffd1
DM		 3789 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3790 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3791 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3792 goto nla_put_failure;
f5ea9120 3793
2ec600d6
LCC		 3794 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3795 if (!sinfoattr)
fd5b74dc 3796 goto nla_put_failure;
319090bf
JB		 3797
3798#define PUT_SINFO(attr, memb, type) do { \
d686b920 3799 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 3800 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 3801 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3802 sinfo->memb)) \
3803 goto nla_put_failure; \
3804 } while (0)
d686b920
JB		 3805#define PUT_SINFO_U64(attr, memb) do { \
3806 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3807 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
3808 sinfo->memb, NL80211_STA_INFO_PAD)) \
3809 goto nla_put_failure; \
3810 } while (0)
319090bf
JB		 3811
3812 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3813 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3814
3815 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3816 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3817 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3818 (u32)sinfo->rx_bytes))
9360ffd1 3819 goto nla_put_failure;
319090bf
JB		 3820
3821 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3822 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3823 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3824 (u32)sinfo->tx_bytes))
3825 goto nla_put_failure;
319090bf 3826
d686b920
JB		 3827 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
3828 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 3829 PUT_SINFO(LLID, llid, u16);
3830 PUT_SINFO(PLID, plid, u16);
3831 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 3832 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 3833
66266b3a
JL		 3834 switch (rdev->wiphy.signal_type) {
3835 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3836 PUT_SINFO(SIGNAL, signal, u8);
3837 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3838 break;
3839 default:
3840 break;
3841 }
319090bf 3842 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3843 if (!nl80211_put_signal(msg, sinfo->chains,
3844 sinfo->chain_signal,
3845 NL80211_STA_INFO_CHAIN_SIGNAL))
3846 goto nla_put_failure;
3847 }
319090bf 3848 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3849 if (!nl80211_put_signal(msg, sinfo->chains,
3850 sinfo->chain_signal_avg,
3851 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3852 goto nla_put_failure;
3853 }
319090bf 3854 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3855 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3856 NL80211_STA_INFO_TX_BITRATE))
3857 goto nla_put_failure;
3858 }
319090bf 3859 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3860 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3861 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3862 goto nla_put_failure;
420e7fab 3863 }
319090bf
JB		 3864
3865 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3866 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3867 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3868 PUT_SINFO(TX_FAILED, tx_failed, u32);
3869 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3870 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3871 PUT_SINFO(LOCAL_PM, local_pm, u32);
3872 PUT_SINFO(PEER_PM, peer_pm, u32);
3873 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3874
3875 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3876 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3877 if (!bss_param)
3878 goto nla_put_failure;
3879
9360ffd1
DM		 3880 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3881 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3882 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3883 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3884 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3885 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3886 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3887 sinfo->bss_param.dtim_period) ||
3888 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3889 sinfo->bss_param.beacon_interval))
3890 goto nla_put_failure;
f4263c98
PS		 3891
3892 nla_nest_end(msg, bss_param);
3893 }
319090bf 3894 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3895 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3896 sizeof(struct nl80211_sta_flag_update),
3897 &sinfo->sta_flags))
3898 goto nla_put_failure;
319090bf 3899
d686b920
JB		 3900 PUT_SINFO_U64(T_OFFSET, t_offset);
3901 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
3902 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 3903 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3904
3905#undef PUT_SINFO
d686b920 3906#undef PUT_SINFO_U64
6de39808
JB		 3907
3908 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3909 struct nlattr *tidsattr;
3910 int tid;
3911
3912 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3913 if (!tidsattr)
3914 goto nla_put_failure;
3915
3916 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3917 struct cfg80211_tid_stats *tidstats;
3918 struct nlattr *tidattr;
3919
3920 tidstats = &sinfo->pertid[tid];
3921
3922 if (!tidstats->filled)
3923 continue;
3924
3925 tidattr = nla_nest_start(msg, tid + 1);
3926 if (!tidattr)
3927 goto nla_put_failure;
3928
d686b920 3929#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 3930 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 3931 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
3932 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 3933 goto nla_put_failure; \
3934 } while (0)
3935
d686b920
JB		 3936 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
3937 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
3938 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
3939 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 3940
d686b920 3941#undef PUT_TIDVAL_U64
6de39808
JB		 3942 nla_nest_end(msg, tidattr);
3943 }
3944
3945 nla_nest_end(msg, tidsattr);
3946 }
3947
2ec600d6 3948 nla_nest_end(msg, sinfoattr);
fd5b74dc 3949
319090bf 3950 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3951 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3952 sinfo->assoc_req_ies))
3953 goto nla_put_failure;
50d3dfb7 3954
053c095a
JB		 3955 genlmsg_end(msg, hdr);
3956 return 0;
fd5b74dc
JB		 3957
3958 nla_put_failure:
bc3ed28c
TG		 3959 genlmsg_cancel(msg, hdr);
3960 return -EMSGSIZE;
fd5b74dc
JB		 3961}
3962
2ec600d6 3963static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3964 struct netlink_callback *cb)
2ec600d6 3965{
2ec600d6 3966 struct station_info sinfo;
1b8ec87a 3967 struct cfg80211_registered_device *rdev;
97990a06 3968 struct wireless_dev *wdev;
2ec600d6 3969 u8 mac_addr[ETH_ALEN];
97990a06 3970 int sta_idx = cb->args[2];
2ec600d6 3971 int err;
2ec600d6 3972
1b8ec87a 3973 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3974 if (err)
3975 return err;
bba95fef 3976
97990a06
JB		 3977 if (!wdev->netdev) {
3978 err = -EINVAL;
3979 goto out_err;
3980 }
3981
1b8ec87a 3982 if (!rdev->ops->dump_station) {
eec60b03 3983 err = -EOPNOTSUPP;
bba95fef
JB		 3984 goto out_err;
3985 }
3986
bba95fef 3987 while (1) {
f612cedf 3988 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3989 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3990 mac_addr, &sinfo);
bba95fef
JB		 3991 if (err == -ENOENT)
3992 break;
3993 if (err)
3b85875a 3994 goto out_err;
bba95fef 3995
cf5ead82 3996 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3997 NETLINK_CB(cb->skb).portid,
bba95fef 3998 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3999 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4000 &sinfo) < 0)
4001 goto out;
4002
4003 sta_idx++;
4004 }
4005
4006
4007 out:
97990a06 4008 cb->args[2] = sta_idx;
bba95fef 4009 err = skb->len;
bba95fef 4010 out_err:
1b8ec87a 4011 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4012
4013 return err;
2ec600d6 4014}
fd5b74dc 4015
5727ef1b
JB		 4016static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4017{
4c476991
JB		 4018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4019 struct net_device *dev = info->user_ptr[1];
2ec600d6 4020 struct station_info sinfo;
fd5b74dc
JB		 4021 struct sk_buff *msg;
4022 u8 *mac_addr = NULL;
4c476991 4023 int err;
fd5b74dc 4024
2ec600d6 4025 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4026
4027 if (!info->attrs[NL80211_ATTR_MAC])
4028 return -EINVAL;
4029
4030 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4031
4c476991
JB		 4032 if (!rdev->ops->get_station)
4033 return -EOPNOTSUPP;
3b85875a 4034
e35e4d28 4035 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4036 if (err)
4c476991 4037 return err;
2ec600d6 4038
fd2120ca 4039 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4040 if (!msg)
4c476991 4041 return -ENOMEM;
fd5b74dc 4042
cf5ead82
JB		 4043 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4044 info->snd_portid, info->snd_seq, 0,
66266b3a 4045 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4046 nlmsg_free(msg);
4047 return -ENOBUFS;
4048 }
3b85875a 4049
4c476991 4050 return genlmsg_reply(msg, info);
5727ef1b
JB		 4051}
4052
77ee7c89
JB		 4053int cfg80211_check_station_change(struct wiphy *wiphy,
4054 struct station_parameters *params,
4055 enum cfg80211_station_type statype)
4056{
e4208427
AB		 4057 if (params->listen_interval != -1 &&
4058 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4059 return -EINVAL;
e4208427 4060
17b94247
AB		 4061 if (params->support_p2p_ps != -1 &&
4062 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4063 return -EINVAL;
4064
c72e1140 4065 if (params->aid &&
e4208427
AB		 4066 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4067 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4068 return -EINVAL;
4069
4070 /* When you run into this, adjust the code below for the new flag */
4071 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4072
4073 switch (statype) {
eef941e6
TP		 4074 case CFG80211_STA_MESH_PEER_KERNEL:
4075 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4076 /*
4077 * No ignoring the TDLS flag here -- the userspace mesh
4078 * code doesn't have the bug of including TDLS in the
4079 * mask everywhere.
4080 */
4081 if (params->sta_flags_mask &
4082 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4083 BIT(NL80211_STA_FLAG_MFP) |
4084 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4085 return -EINVAL;
4086 break;
4087 case CFG80211_STA_TDLS_PEER_SETUP:
4088 case CFG80211_STA_TDLS_PEER_ACTIVE:
4089 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4090 return -EINVAL;
4091 /* ignore since it can't change */
4092 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4093 break;
4094 default:
4095 /* disallow mesh-specific things */
4096 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4097 return -EINVAL;
4098 if (params->local_pm)
4099 return -EINVAL;
4100 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4101 return -EINVAL;
4102 }
4103
4104 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4105 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4106 /* TDLS can't be set, ... */
4107 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4108 return -EINVAL;
4109 /*
4110 * ... but don't bother the driver with it. This works around
4111 * a hostapd/wpa_supplicant issue -- it always includes the
4112 * TLDS_PEER flag in the mask even for AP mode.
4113 */
4114 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4115 }
4116
47edb11b
AB		 4117 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4118 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4119 /* reject other things that can't change */
4120 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4121 return -EINVAL;
4122 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4123 return -EINVAL;
4124 if (params->supported_rates)
4125 return -EINVAL;
4126 if (params->ext_capab || params->ht_capa || params->vht_capa)
4127 return -EINVAL;
4128 }
4129
47edb11b
AB		 4130 if (statype != CFG80211_STA_AP_CLIENT &&
4131 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4132 if (params->vlan)
4133 return -EINVAL;
4134 }
4135
4136 switch (statype) {
4137 case CFG80211_STA_AP_MLME_CLIENT:
4138 /* Use this only for authorizing/unauthorizing a station */
4139 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4140 return -EOPNOTSUPP;
4141 break;
4142 case CFG80211_STA_AP_CLIENT:
47edb11b 4143 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4144 /* accept only the listed bits */
4145 if (params->sta_flags_mask &
4146 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4147 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4148 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4149 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4150 BIT(NL80211_STA_FLAG_WME) |
4151 BIT(NL80211_STA_FLAG_MFP)))
4152 return -EINVAL;
4153
4154 /* but authenticated/associated only if driver handles it */
4155 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4156 params->sta_flags_mask &
4157 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4158 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4159 return -EINVAL;
4160 break;
4161 case CFG80211_STA_IBSS:
4162 case CFG80211_STA_AP_STA:
4163 /* reject any changes other than AUTHORIZED */
4164 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4165 return -EINVAL;
4166 break;
4167 case CFG80211_STA_TDLS_PEER_SETUP:
4168 /* reject any changes other than AUTHORIZED or WME */
4169 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4170 BIT(NL80211_STA_FLAG_WME)))
4171 return -EINVAL;
4172 /* force (at least) rates when authorizing */
4173 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4174 !params->supported_rates)
4175 return -EINVAL;
4176 break;
4177 case CFG80211_STA_TDLS_PEER_ACTIVE:
4178 /* reject any changes */
4179 return -EINVAL;
eef941e6 4180 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4181 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4182 return -EINVAL;
4183 break;
eef941e6 4184 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4185 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4186 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4187 return -EINVAL;
4188 break;
4189 }
4190
4191 return 0;
4192}
4193EXPORT_SYMBOL(cfg80211_check_station_change);
4194
5727ef1b 4195/*
c258d2de 4196 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4197 */
80b99899
JB		 4198static struct net_device *get_vlan(struct genl_info *info,
4199 struct cfg80211_registered_device *rdev)
5727ef1b 4200{
463d0183 4201 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4202 struct net_device *v;
4203 int ret;
4204
4205 if (!vlanattr)
4206 return NULL;
4207
4208 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4209 if (!v)
4210 return ERR_PTR(-ENODEV);
4211
4212 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4213 ret = -EINVAL;
4214 goto error;
5727ef1b 4215 }
80b99899 4216
77ee7c89
JB		 4217 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4218 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4219 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4220 ret = -EINVAL;
4221 goto error;
4222 }
4223
80b99899
JB		 4224 if (!netif_running(v)) {
4225 ret = -ENETDOWN;
4226 goto error;
4227 }
4228
4229 return v;
4230 error:
4231 dev_put(v);
4232 return ERR_PTR(ret);
5727ef1b
JB		 4233}
4234
94e860f1
JB		 4235static const struct nla_policy
4236nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4237 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4238 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4239};
4240
ff276691
JB		 4241static int nl80211_parse_sta_wme(struct genl_info *info,
4242 struct station_parameters *params)
df881293 4243{
df881293
JM		 4244 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4245 struct nlattr *nla;
4246 int err;
4247
df881293
JM		 4248 /* parse WME attributes if present */
4249 if (!info->attrs[NL80211_ATTR_STA_WME])
4250 return 0;
4251
4252 nla = info->attrs[NL80211_ATTR_STA_WME];
4253 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4254 nl80211_sta_wme_policy);
4255 if (err)
4256 return err;
4257
4258 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4259 params->uapsd_queues = nla_get_u8(
4260 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4261 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4262 return -EINVAL;
4263
4264 if (tb[NL80211_STA_WME_MAX_SP])
4265 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4266
4267 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4268 return -EINVAL;
4269
4270 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4271
4272 return 0;
4273}
4274
c01fc9ad
SD		 4275static int nl80211_parse_sta_channel_info(struct genl_info *info,
4276 struct station_parameters *params)
4277{
4278 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4279 params->supported_channels =
4280 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4281 params->supported_channels_len =
4282 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4283 /*
4284 * Need to include at least one (first channel, number of
4285 * channels) tuple for each subband, and must have proper
4286 * tuples for the rest of the data as well.
4287 */
4288 if (params->supported_channels_len < 2)
4289 return -EINVAL;
4290 if (params->supported_channels_len % 2)
4291 return -EINVAL;
4292 }
4293
4294 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4295 params->supported_oper_classes =
4296 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4297 params->supported_oper_classes_len =
4298 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4299 /*
4300 * The value of the Length field of the Supported Operating
4301 * Classes element is between 2 and 253.
4302 */
4303 if (params->supported_oper_classes_len < 2 ||
4304 params->supported_oper_classes_len > 253)
4305 return -EINVAL;
4306 }
4307 return 0;
4308}
4309
ff276691
JB		 4310static int nl80211_set_station_tdls(struct genl_info *info,
4311 struct station_parameters *params)
4312{
c01fc9ad 4313 int err;
ff276691 4314 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4315 if (info->attrs[NL80211_ATTR_PEER_AID])
4316 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4317 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4318 params->ht_capa =
4319 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4320 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4321 params->vht_capa =
4322 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4323
c01fc9ad
SD		 4324 err = nl80211_parse_sta_channel_info(info, params);
4325 if (err)
4326 return err;
4327
ff276691
JB		 4328 return nl80211_parse_sta_wme(info, params);
4329}
4330
5727ef1b
JB		 4331static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4332{
4c476991 4333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4334 struct net_device *dev = info->user_ptr[1];
5727ef1b 4335 struct station_parameters params;
77ee7c89
JB		 4336 u8 *mac_addr;
4337 int err;
5727ef1b
JB		 4338
4339 memset(&params, 0, sizeof(params));
4340
77ee7c89
JB		 4341 if (!rdev->ops->change_station)
4342 return -EOPNOTSUPP;
4343
e4208427
AB		 4344 /*
4345 * AID and listen_interval properties can be set only for unassociated
4346 * station. Include these parameters here and will check them in
4347 * cfg80211_check_station_change().
4348 */
a9bc31e4
AB		 4349 if (info->attrs[NL80211_ATTR_STA_AID])
4350 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4351
4352 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4353 params.listen_interval =
4354 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4355 else
4356 params.listen_interval = -1;
5727ef1b 4357
17b94247
AB		 4358 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4359 u8 tmp;
4360
4361 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4362 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4363 return -EINVAL;
4364
4365 params.support_p2p_ps = tmp;
4366 } else {
4367 params.support_p2p_ps = -1;
4368 }
4369
5727ef1b
JB		 4370 if (!info->attrs[NL80211_ATTR_MAC])
4371 return -EINVAL;
4372
4373 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4374
4375 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4376 params.supported_rates =
4377 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4378 params.supported_rates_len =
4379 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4380 }
4381
9d62a986
JM		 4382 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4383 params.capability =
4384 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4385 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4386 }
4387
4388 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4389 params.ext_capab =
4390 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4391 params.ext_capab_len =
4392 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4393 }
4394
bdd3ae3d 4395 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4396 return -EINVAL;
4397
f8bacc21 4398 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4399 params.plink_action =
f8bacc21
JB		 4400 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4401 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4402 return -EINVAL;
4403 }
2ec600d6 4404
f8bacc21 4405 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4406 params.plink_state =
f8bacc21
JB		 4407 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4408 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4409 return -EINVAL;
4410 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4411 }
9c3990aa 4412
3b1c5a53
MP		 4413 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4414 enum nl80211_mesh_power_mode pm = nla_get_u32(
4415 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4416
4417 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4418 pm > NL80211_MESH_POWER_MAX)
4419 return -EINVAL;
4420
4421 params.local_pm = pm;
4422 }
4423
77ee7c89
JB		 4424 /* Include parameters for TDLS peer (will check later) */
4425 err = nl80211_set_station_tdls(info, &params);
4426 if (err)
4427 return err;
4428
4429 params.vlan = get_vlan(info, rdev);
4430 if (IS_ERR(params.vlan))
4431 return PTR_ERR(params.vlan);
4432
a97f4424
JB		 4433 switch (dev->ieee80211_ptr->iftype) {
4434 case NL80211_IFTYPE_AP:
4435 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4436 case NL80211_IFTYPE_P2P_GO:
074ac8df 4437 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4438 case NL80211_IFTYPE_STATION:
267335d6 4439 case NL80211_IFTYPE_ADHOC:
a97f4424 4440 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4441 break;
4442 default:
77ee7c89
JB		 4443 err = -EOPNOTSUPP;
4444 goto out_put_vlan;
034d655e
JB		 4445 }
4446
77ee7c89 4447 /* driver will call cfg80211_check_station_change() */
e35e4d28 4448 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4449
77ee7c89 4450 out_put_vlan:
5727ef1b
JB		 4451 if (params.vlan)
4452 dev_put(params.vlan);
3b85875a 4453
5727ef1b
JB		 4454 return err;
4455}
4456
4457static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4458{
4c476991 4459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4460 int err;
4c476991 4461 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4462 struct station_parameters params;
4463 u8 *mac_addr = NULL;
bda95eb1
JB		 4464 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4465 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4466
4467 memset(&params, 0, sizeof(params));
4468
984c311b
JB		 4469 if (!rdev->ops->add_station)
4470 return -EOPNOTSUPP;
4471
5727ef1b
JB		 4472 if (!info->attrs[NL80211_ATTR_MAC])
4473 return -EINVAL;
4474
5727ef1b
JB		 4475 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4476 return -EINVAL;
4477
4478 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4479 return -EINVAL;
4480
5e4b6f56
JM		 4481 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4482 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4483 return -EINVAL;
4484
5727ef1b
JB		 4485 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4486 params.supported_rates =
4487 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4488 params.supported_rates_len =
4489 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4490 params.listen_interval =
4491 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4492
17b94247
AB		 4493 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4494 u8 tmp;
4495
4496 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4497 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4498 return -EINVAL;
4499
4500 params.support_p2p_ps = tmp;
4501 } else {
4502 /*
4503 * if not specified, assume it's supported for P2P GO interface,
4504 * and is NOT supported for AP interface
4505 */
4506 params.support_p2p_ps =
4507 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4508 }
4509
3d124ea2 4510 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4511 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4512 else
4513 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4514 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4515 return -EINVAL;
51b50fbe 4516
9d62a986
JM		 4517 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4518 params.capability =
4519 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4520 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4521 }
4522
4523 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4524 params.ext_capab =
4525 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4526 params.ext_capab_len =
4527 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4528 }
4529
36aedc90
JM		 4530 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4531 params.ht_capa =
4532 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4533
f461be3e
MP		 4534 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4535 params.vht_capa =
4536 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4537
60f4a7b1
MK		 4538 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4539 params.opmode_notif_used = true;
4540 params.opmode_notif =
4541 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4542 }
4543
f8bacc21 4544 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4545 params.plink_action =
f8bacc21
JB		 4546 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4547 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4548 return -EINVAL;
4549 }
96b78dff 4550
c01fc9ad
SD		 4551 err = nl80211_parse_sta_channel_info(info, &params);
4552 if (err)
4553 return err;
4554
ff276691
JB		 4555 err = nl80211_parse_sta_wme(info, &params);
4556 if (err)
4557 return err;
bdd90d5e 4558
bdd3ae3d 4559 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4560 return -EINVAL;
4561
496fcc29
JB		 4562 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4563 * as userspace might just pass through the capabilities from the IEs
4564 * directly, rather than enforcing this restriction and returning an
4565 * error in this case.
4566 */
4567 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4568 params.ht_capa = NULL;
4569 params.vht_capa = NULL;
4570 }
4571
77ee7c89
JB		 4572 /* When you run into this, adjust the code below for the new flag */
4573 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4574
bdd90d5e
JB		 4575 switch (dev->ieee80211_ptr->iftype) {
4576 case NL80211_IFTYPE_AP:
4577 case NL80211_IFTYPE_AP_VLAN:
4578 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4579 /* ignore WME attributes if iface/sta is not capable */
4580 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4581 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4582 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4583
bdd90d5e 4584 /* TDLS peers cannot be added */
3d124ea2
JM		 4585 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4586 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4587 return -EINVAL;
bdd90d5e
JB		 4588 /* but don't bother the driver with it */
4589 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4590
d582cffb
JB		 4591 /* allow authenticated/associated only if driver handles it */
4592 if (!(rdev->wiphy.features &
4593 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4594 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4595 return -EINVAL;
4596
bda95eb1
JB		 4597 /* Older userspace, or userspace wanting to be compatible with
4598 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4599 * and assoc flags in the mask, but assumes the station will be
4600 * added as associated anyway since this was the required driver
4601 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4602 * introduced.
4603 * In order to not bother drivers with this quirk in the API
4604 * set the flags in both the mask and set for new stations in
4605 * this case.
4606 */
4607 if (!(params.sta_flags_mask & auth_assoc)) {
4608 params.sta_flags_mask |= auth_assoc;
4609 params.sta_flags_set |= auth_assoc;
4610 }
4611
bdd90d5e
JB		 4612 /* must be last in here for error handling */
4613 params.vlan = get_vlan(info, rdev);
4614 if (IS_ERR(params.vlan))
4615 return PTR_ERR(params.vlan);
4616 break;
4617 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4618 /* ignore uAPSD data */
4619 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4620
d582cffb
JB		 4621 /* associated is disallowed */
4622 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4623 return -EINVAL;
bdd90d5e 4624 /* TDLS peers cannot be added */
3d124ea2
JM		 4625 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4626 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4627 return -EINVAL;
4628 break;
4629 case NL80211_IFTYPE_STATION:
93d08f0b 4630 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4631 /* ignore uAPSD data */
4632 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4633
77ee7c89
JB		 4634 /* these are disallowed */
4635 if (params.sta_flags_mask &
4636 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4637 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4638 return -EINVAL;
bdd90d5e
JB		 4639 /* Only TDLS peers can be added */
4640 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4641 return -EINVAL;
4642 /* Can only add if TDLS ... */
4643 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4644 return -EOPNOTSUPP;
4645 /* ... with external setup is supported */
4646 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4647 return -EOPNOTSUPP;
77ee7c89
JB		 4648 /*
4649 * Older wpa_supplicant versions always mark the TDLS peer
4650 * as authorized, but it shouldn't yet be.
4651 */
4652 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4653 break;
4654 default:
4655 return -EOPNOTSUPP;
c75786c9
EP		 4656 }
4657
bdd90d5e 4658 /* be aware of params.vlan when changing code here */
5727ef1b 4659
e35e4d28 4660 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4661
5727ef1b
JB		 4662 if (params.vlan)
4663 dev_put(params.vlan);
5727ef1b
JB		 4664 return err;
4665}
4666
4667static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4668{
4c476991
JB		 4669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4670 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4671 struct station_del_parameters params;
4672
4673 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4674
4675 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4676 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4677
e80cf853 4678 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4679 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4680 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4681 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4682 return -EINVAL;
5727ef1b 4683
4c476991
JB		 4684 if (!rdev->ops->del_station)
4685 return -EOPNOTSUPP;
3b85875a 4686
98856866
JM		 4687 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4688 params.subtype =
4689 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4690 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4691 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4692 return -EINVAL;
4693 } else {
4694 /* Default to Deauthentication frame */
4695 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4696 }
4697
4698 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4699 params.reason_code =
4700 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4701 if (params.reason_code == 0)
4702 return -EINVAL; /* 0 is reserved */
4703 } else {
4704 /* Default to reason code 2 */
4705 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4706 }
4707
89c771e5 4708 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4709}
4710
15e47304 4711static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4712 int flags, struct net_device *dev,
4713 u8 *dst, u8 *next_hop,
4714 struct mpath_info *pinfo)
4715{
4716 void *hdr;
4717 struct nlattr *pinfoattr;
4718
1ef4c850 4719 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4720 if (!hdr)
4721 return -1;
4722
9360ffd1
DM		 4723 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4724 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4725 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4726 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4727 goto nla_put_failure;
f5ea9120 4728
2ec600d6
LCC		 4729 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4730 if (!pinfoattr)
4731 goto nla_put_failure;
9360ffd1
DM		 4732 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4733 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4734 pinfo->frame_qlen))
4735 goto nla_put_failure;
4736 if (((pinfo->filled & MPATH_INFO_SN) &&
4737 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4738 ((pinfo->filled & MPATH_INFO_METRIC) &&
4739 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4740 pinfo->metric)) ||
4741 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4742 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4743 pinfo->exptime)) ||
4744 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4745 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4746 pinfo->flags)) ||
4747 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4748 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4749 pinfo->discovery_timeout)) ||
4750 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4751 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4752 pinfo->discovery_retries)))
4753 goto nla_put_failure;
2ec600d6
LCC		 4754
4755 nla_nest_end(msg, pinfoattr);
4756
053c095a
JB		 4757 genlmsg_end(msg, hdr);
4758 return 0;
2ec600d6
LCC		 4759
4760 nla_put_failure:
bc3ed28c
TG		 4761 genlmsg_cancel(msg, hdr);
4762 return -EMSGSIZE;
2ec600d6
LCC		 4763}
4764
4765static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4766 struct netlink_callback *cb)
2ec600d6 4767{
2ec600d6 4768 struct mpath_info pinfo;
1b8ec87a 4769 struct cfg80211_registered_device *rdev;
97990a06 4770 struct wireless_dev *wdev;
2ec600d6
LCC		 4771 u8 dst[ETH_ALEN];
4772 u8 next_hop[ETH_ALEN];
97990a06 4773 int path_idx = cb->args[2];
2ec600d6 4774 int err;
2ec600d6 4775
1b8ec87a 4776 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4777 if (err)
4778 return err;
bba95fef 4779
1b8ec87a 4780 if (!rdev->ops->dump_mpath) {
eec60b03 4781 err = -EOPNOTSUPP;
bba95fef
JB		 4782 goto out_err;
4783 }
4784
97990a06 4785 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4786 err = -EOPNOTSUPP;
0448b5fc 4787 goto out_err;
eec60b03
JM		 4788 }
4789
bba95fef 4790 while (1) {
1b8ec87a 4791 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4792 next_hop, &pinfo);
bba95fef 4793 if (err == -ENOENT)
2ec600d6 4794 break;
bba95fef 4795 if (err)
3b85875a 4796 goto out_err;
2ec600d6 4797
15e47304 4798 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4799 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4800 wdev->netdev, dst, next_hop,
bba95fef
JB		 4801 &pinfo) < 0)
4802 goto out;
2ec600d6 4803
bba95fef 4804 path_idx++;
2ec600d6 4805 }
2ec600d6 4806
2ec600d6 4807
bba95fef 4808 out:
97990a06 4809 cb->args[2] = path_idx;
bba95fef 4810 err = skb->len;
bba95fef 4811 out_err:
1b8ec87a 4812 nl80211_finish_wdev_dump(rdev);
bba95fef 4813 return err;
2ec600d6
LCC		 4814}
4815
4816static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4817{
4c476991 4818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4819 int err;
4c476991 4820 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4821 struct mpath_info pinfo;
4822 struct sk_buff *msg;
4823 u8 *dst = NULL;
4824 u8 next_hop[ETH_ALEN];
4825
4826 memset(&pinfo, 0, sizeof(pinfo));
4827
4828 if (!info->attrs[NL80211_ATTR_MAC])
4829 return -EINVAL;
4830
4831 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4832
4c476991
JB		 4833 if (!rdev->ops->get_mpath)
4834 return -EOPNOTSUPP;
2ec600d6 4835
4c476991
JB		 4836 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4837 return -EOPNOTSUPP;
eec60b03 4838
e35e4d28 4839 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4840 if (err)
4c476991 4841 return err;
2ec600d6 4842
fd2120ca 4843 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4844 if (!msg)
4c476991 4845 return -ENOMEM;
2ec600d6 4846
15e47304 4847 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4848 dev, dst, next_hop, &pinfo) < 0) {
4849 nlmsg_free(msg);
4850 return -ENOBUFS;
4851 }
3b85875a 4852
4c476991 4853 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4854}
4855
4856static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4857{
4c476991
JB		 4858 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4859 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4860 u8 *dst = NULL;
4861 u8 *next_hop = NULL;
4862
4863 if (!info->attrs[NL80211_ATTR_MAC])
4864 return -EINVAL;
4865
4866 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4867 return -EINVAL;
4868
4869 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4870 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4871
4c476991
JB		 4872 if (!rdev->ops->change_mpath)
4873 return -EOPNOTSUPP;
35a8efe1 4874
4c476991
JB		 4875 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4876 return -EOPNOTSUPP;
2ec600d6 4877
e35e4d28 4878 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4879}
4c476991 4880
2ec600d6
LCC		 4881static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4882{
4c476991
JB		 4883 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4884 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4885 u8 *dst = NULL;
4886 u8 *next_hop = NULL;
4887
4888 if (!info->attrs[NL80211_ATTR_MAC])
4889 return -EINVAL;
4890
4891 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4892 return -EINVAL;
4893
4894 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4895 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4896
4c476991
JB		 4897 if (!rdev->ops->add_mpath)
4898 return -EOPNOTSUPP;
35a8efe1 4899
4c476991
JB		 4900 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4901 return -EOPNOTSUPP;
2ec600d6 4902
e35e4d28 4903 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4904}
4905
4906static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4907{
4c476991
JB		 4908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4909 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4910 u8 *dst = NULL;
4911
4912 if (info->attrs[NL80211_ATTR_MAC])
4913 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4914
4c476991
JB		 4915 if (!rdev->ops->del_mpath)
4916 return -EOPNOTSUPP;
3b85875a 4917
e35e4d28 4918 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4919}
4920
66be7d2b
HR		 4921static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4922{
4923 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4924 int err;
4925 struct net_device *dev = info->user_ptr[1];
4926 struct mpath_info pinfo;
4927 struct sk_buff *msg;
4928 u8 *dst = NULL;
4929 u8 mpp[ETH_ALEN];
4930
4931 memset(&pinfo, 0, sizeof(pinfo));
4932
4933 if (!info->attrs[NL80211_ATTR_MAC])
4934 return -EINVAL;
4935
4936 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4937
4938 if (!rdev->ops->get_mpp)
4939 return -EOPNOTSUPP;
4940
4941 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4942 return -EOPNOTSUPP;
4943
4944 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4945 if (err)
4946 return err;
4947
4948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4949 if (!msg)
4950 return -ENOMEM;
4951
4952 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4953 dev, dst, mpp, &pinfo) < 0) {
4954 nlmsg_free(msg);
4955 return -ENOBUFS;
4956 }
4957
4958 return genlmsg_reply(msg, info);
4959}
4960
4961static int nl80211_dump_mpp(struct sk_buff *skb,
4962 struct netlink_callback *cb)
4963{
4964 struct mpath_info pinfo;
4965 struct cfg80211_registered_device *rdev;
4966 struct wireless_dev *wdev;
4967 u8 dst[ETH_ALEN];
4968 u8 mpp[ETH_ALEN];
4969 int path_idx = cb->args[2];
4970 int err;
4971
4972 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4973 if (err)
4974 return err;
4975
4976 if (!rdev->ops->dump_mpp) {
4977 err = -EOPNOTSUPP;
4978 goto out_err;
4979 }
4980
4981 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4982 err = -EOPNOTSUPP;
4983 goto out_err;
4984 }
4985
4986 while (1) {
4987 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4988 mpp, &pinfo);
4989 if (err == -ENOENT)
4990 break;
4991 if (err)
4992 goto out_err;
4993
4994 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4995 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4996 wdev->netdev, dst, mpp,
4997 &pinfo) < 0)
4998 goto out;
4999
5000 path_idx++;
5001 }
5002
5003 out:
5004 cb->args[2] = path_idx;
5005 err = skb->len;
5006 out_err:
5007 nl80211_finish_wdev_dump(rdev);
5008 return err;
5009}
5010
9f1ba906
JM		 5011static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5012{
4c476991
JB		 5013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5014 struct net_device *dev = info->user_ptr[1];
c56589ed 5015 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5016 struct bss_parameters params;
c56589ed 5017 int err;
9f1ba906
JM		 5018
5019 memset(&params, 0, sizeof(params));
5020 /* default to not changing parameters */
5021 params.use_cts_prot = -1;
5022 params.use_short_preamble = -1;
5023 params.use_short_slot_time = -1;
fd8aaaf3 5024 params.ap_isolate = -1;
50b12f59 5025 params.ht_opmode = -1;
53cabad7
JB		 5026 params.p2p_ctwindow = -1;
5027 params.p2p_opp_ps = -1;
9f1ba906
JM		 5028
5029 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5030 params.use_cts_prot =
5031 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5032 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5033 params.use_short_preamble =
5034 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5035 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5036 params.use_short_slot_time =
5037 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5038 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5039 params.basic_rates =
5040 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5041 params.basic_rates_len =
5042 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5043 }
fd8aaaf3
FF		 5044 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5045 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5046 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5047 params.ht_opmode =
5048 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5049
53cabad7
JB		 5050 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5051 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5052 return -EINVAL;
5053 params.p2p_ctwindow =
5054 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5055 if (params.p2p_ctwindow < 0)
5056 return -EINVAL;
5057 if (params.p2p_ctwindow != 0 &&
5058 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5059 return -EINVAL;
5060 }
5061
5062 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5063 u8 tmp;
5064
5065 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5066 return -EINVAL;
5067 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5068 if (tmp > 1)
5069 return -EINVAL;
5070 params.p2p_opp_ps = tmp;
5071 if (params.p2p_opp_ps &&
5072 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5073 return -EINVAL;
5074 }
5075
4c476991
JB		 5076 if (!rdev->ops->change_bss)
5077 return -EOPNOTSUPP;
9f1ba906 5078
074ac8df 5079 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5080 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5081 return -EOPNOTSUPP;
3b85875a 5082
c56589ed
SW		 5083 wdev_lock(wdev);
5084 err = rdev_change_bss(rdev, dev, &params);
5085 wdev_unlock(wdev);
5086
5087 return err;
9f1ba906
JM		 5088}
5089
b2e1b302
LR		 5090static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5091{
b2e1b302 5092 char *data = NULL;
05050753 5093 bool is_indoor;
57b5ce07 5094 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5095 u32 owner_nlportid;
5096
b2e1b302 5097
80778f18
LR		 5098 /*
5099 * You should only get this when cfg80211 hasn't yet initialized
5100 * completely when built-in to the kernel right between the time
5101 * window between nl80211_init() and regulatory_init(), if that is
5102 * even possible.
5103 */
458f4f9e 5104 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5105 return -EINPROGRESS;
80778f18 5106
57b5ce07
LR		 5107 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5108 user_reg_hint_type =
5109 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5110 else
5111 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5112
5113 switch (user_reg_hint_type) {
5114 case NL80211_USER_REG_HINT_USER:
5115 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5116 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5117 return -EINVAL;
5118
5119 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5120 return regulatory_hint_user(data, user_reg_hint_type);
5121 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5122 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5123 owner_nlportid = info->snd_portid;
5124 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5125 } else {
5126 owner_nlportid = 0;
5127 is_indoor = true;
5128 }
5129
5130 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5131 default:
5132 return -EINVAL;
5133 }
b2e1b302
LR		 5134}
5135
24bdd9f4 5136static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5137 struct genl_info *info)
93da9cc1 5138{
4c476991 5139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5140 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5141 struct wireless_dev *wdev = dev->ieee80211_ptr;
5142 struct mesh_config cur_params;
5143 int err = 0;
93da9cc1 5144 void *hdr;
5145 struct nlattr *pinfoattr;
5146 struct sk_buff *msg;
5147
29cbe68c
JB		 5148 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5149 return -EOPNOTSUPP;
5150
24bdd9f4 5151 if (!rdev->ops->get_mesh_config)
4c476991 5152 return -EOPNOTSUPP;
f3f92586 5153
29cbe68c
JB		 5154 wdev_lock(wdev);
5155 /* If not connected, get default parameters */
5156 if (!wdev->mesh_id_len)
5157 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5158 else
e35e4d28 5159 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5160 wdev_unlock(wdev);
5161
93da9cc1 5162 if (err)
4c476991 5163 return err;
93da9cc1 5164
5165 /* Draw up a netlink message to send back */
fd2120ca 5166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5167 if (!msg)
5168 return -ENOMEM;
15e47304 5169 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5170 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5171 if (!hdr)
efe1cf0c 5172 goto out;
24bdd9f4 5173 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5174 if (!pinfoattr)
5175 goto nla_put_failure;
9360ffd1
DM		 5176 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5177 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5178 cur_params.dot11MeshRetryTimeout) ||
5179 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5180 cur_params.dot11MeshConfirmTimeout) ||
5181 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5182 cur_params.dot11MeshHoldingTimeout) ||
5183 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5184 cur_params.dot11MeshMaxPeerLinks) ||
5185 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5186 cur_params.dot11MeshMaxRetries) ||
5187 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5188 cur_params.dot11MeshTTL) ||
5189 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5190 cur_params.element_ttl) ||
5191 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5192 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5193 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5194 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5195 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5196 cur_params.dot11MeshHWMPmaxPREQretries) ||
5197 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5198 cur_params.path_refresh_time) ||
5199 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5200 cur_params.min_discovery_timeout) ||
5201 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5202 cur_params.dot11MeshHWMPactivePathTimeout) ||
5203 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5204 cur_params.dot11MeshHWMPpreqMinInterval) ||
5205 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5206 cur_params.dot11MeshHWMPperrMinInterval) ||
5207 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5208 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5209 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5210 cur_params.dot11MeshHWMPRootMode) ||
5211 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5212 cur_params.dot11MeshHWMPRannInterval) ||
5213 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5214 cur_params.dot11MeshGateAnnouncementProtocol) ||
5215 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5216 cur_params.dot11MeshForwarding) ||
5217 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5218 cur_params.rssi_threshold) ||
5219 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5220 cur_params.ht_opmode) ||
5221 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5222 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5223 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5224 cur_params.dot11MeshHWMProotInterval) ||
5225 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5226 cur_params.dot11MeshHWMPconfirmationInterval) ||
5227 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5228 cur_params.power_mode) ||
5229 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5230 cur_params.dot11MeshAwakeWindowDuration) ||
5231 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5232 cur_params.plink_timeout))
9360ffd1 5233 goto nla_put_failure;
93da9cc1 5234 nla_nest_end(msg, pinfoattr);
5235 genlmsg_end(msg, hdr);
4c476991 5236 return genlmsg_reply(msg, info);
93da9cc1 5237
3b85875a 5238 nla_put_failure:
93da9cc1 5239 genlmsg_cancel(msg, hdr);
efe1cf0c 5240 out:
d080e275 5241 nlmsg_free(msg);
4c476991 5242 return -ENOBUFS;
93da9cc1 5243}
5244
b54452b0 5245static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5246 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5247 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5248 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5249 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5250 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5251 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5252 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5253 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5254 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5255 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5256 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5257 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5258 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5259 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5260 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5261 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5262 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5263 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5264 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5265 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5266 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5267 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5268 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5269 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5270 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5271 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5272 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5273 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5274};
5275
c80d545d
JC		 5276static const struct nla_policy
5277 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5278 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5279 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5280 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5281 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5282 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5283 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5284 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5285 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5286 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5287};
5288
24bdd9f4 5289static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5290 struct mesh_config *cfg,
5291 u32 *mask_out)
93da9cc1 5292{
93da9cc1 5293 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5294 u32 mask = 0;
93da9cc1 5295
ea54fba2
MP		 5296#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5297do { \
5298 if (tb[attr]) { \
5299 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5300 return -EINVAL; \
5301 cfg->param = fn(tb[attr]); \
5302 mask |= (1 << (attr - 1)); \
5303 } \
5304} while (0)
bd90fdcc
JB		 5305
5306
24bdd9f4 5307 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5308 return -EINVAL;
5309 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5310 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5311 nl80211_meshconf_params_policy))
93da9cc1 5312 return -EINVAL;
5313
93da9cc1 5314 /* This makes sure that there aren't more than 32 mesh config
5315 * parameters (otherwise our bitfield scheme would not work.) */
5316 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5317
5318 /* Fill in the params struct */
ea54fba2 5319 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5320 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5321 nla_get_u16);
ea54fba2 5322 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5323 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5324 nla_get_u16);
ea54fba2 5325 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5326 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5327 nla_get_u16);
ea54fba2 5328 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5329 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5330 nla_get_u16);
ea54fba2 5331 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5332 mask, NL80211_MESHCONF_MAX_RETRIES,
5333 nla_get_u8);
ea54fba2 5334 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5335 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5336 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5337 mask, NL80211_MESHCONF_ELEMENT_TTL,
5338 nla_get_u8);
ea54fba2 5339 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5340 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5341 nla_get_u8);
ea54fba2
MP		 5342 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5343 1, 255, mask,
a4f606ea
CYY		 5344 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5345 nla_get_u32);
ea54fba2 5346 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5347 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5348 nla_get_u8);
ea54fba2 5349 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5350 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5351 nla_get_u32);
ea54fba2 5352 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5353 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5354 nla_get_u16);
ea54fba2
MP		 5355 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5356 1, 65535, mask,
a4f606ea
CYY		 5357 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5358 nla_get_u32);
93da9cc1 5359 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5360 1, 65535, mask,
5361 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5362 nla_get_u16);
dca7e943 5363 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5364 1, 65535, mask,
5365 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5366 nla_get_u16);
93da9cc1 5367 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5368 dot11MeshHWMPnetDiameterTraversalTime,
5369 1, 65535, mask,
a4f606ea
CYY		 5370 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5371 nla_get_u16);
ea54fba2
MP		 5372 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5373 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5374 nla_get_u8);
5375 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5376 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5377 nla_get_u16);
63c5723b 5378 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5379 dot11MeshGateAnnouncementProtocol, 0, 1,
5380 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5381 nla_get_u8);
ea54fba2 5382 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5383 mask, NL80211_MESHCONF_FORWARDING,
5384 nla_get_u8);
83374fe9 5385 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5386 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5387 nla_get_s32);
ea54fba2 5388 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5389 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5390 nla_get_u16);
5391 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5392 1, 65535, mask,
ac1073a6
CYY		 5393 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5394 nla_get_u32);
ea54fba2 5395 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5396 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5397 nla_get_u16);
5398 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5399 dot11MeshHWMPconfirmationInterval,
5400 1, 65535, mask,
728b19e5 5401 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5402 nla_get_u16);
3b1c5a53
MP		 5403 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5404 NL80211_MESH_POWER_ACTIVE,
5405 NL80211_MESH_POWER_MAX,
5406 mask, NL80211_MESHCONF_POWER_MODE,
5407 nla_get_u32);
5408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5409 0, 65535, mask,
5410 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5411 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5412 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5413 nla_get_u32);
bd90fdcc
JB		 5414 if (mask_out)
5415 *mask_out = mask;
c80d545d 5416
bd90fdcc
JB		 5417 return 0;
5418
5419#undef FILL_IN_MESH_PARAM_IF_SET
5420}
5421
c80d545d
JC		 5422static int nl80211_parse_mesh_setup(struct genl_info *info,
5423 struct mesh_setup *setup)
5424{
bb2798d4 5425 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5426 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5427
5428 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5429 return -EINVAL;
5430 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5431 info->attrs[NL80211_ATTR_MESH_SETUP],
5432 nl80211_mesh_setup_params_policy))
5433 return -EINVAL;
5434
d299a1f2
JC		 5435 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5436 setup->sync_method =
5437 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5438 IEEE80211_SYNC_METHOD_VENDOR :
5439 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5440
c80d545d
JC		 5441 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5442 setup->path_sel_proto =
5443 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5444 IEEE80211_PATH_PROTOCOL_VENDOR :
5445 IEEE80211_PATH_PROTOCOL_HWMP;
5446
5447 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5448 setup->path_metric =
5449 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5450 IEEE80211_PATH_METRIC_VENDOR :
5451 IEEE80211_PATH_METRIC_AIRTIME;
5452
581a8b0f
JC		 5453
5454 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5455 struct nlattr *ieattr =
581a8b0f 5456 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5457 if (!is_valid_ie_attr(ieattr))
5458 return -EINVAL;
581a8b0f
JC		 5459 setup->ie = nla_data(ieattr);
5460 setup->ie_len = nla_len(ieattr);
c80d545d 5461 }
bb2798d4
TP		 5462 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5463 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5464 return -EINVAL;
5465 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5466 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5467 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5468 if (setup->is_secure)
5469 setup->user_mpm = true;
c80d545d 5470
6e16d90b
CT		 5471 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5472 if (!setup->user_mpm)
5473 return -EINVAL;
5474 setup->auth_id =
5475 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5476 }
5477
c80d545d
JC		 5478 return 0;
5479}
5480
24bdd9f4 5481static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5482 struct genl_info *info)
bd90fdcc
JB		 5483{
5484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5485 struct net_device *dev = info->user_ptr[1];
29cbe68c 5486 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5487 struct mesh_config cfg;
5488 u32 mask;
5489 int err;
5490
29cbe68c
JB		 5491 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5492 return -EOPNOTSUPP;
5493
24bdd9f4 5494 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5495 return -EOPNOTSUPP;
5496
24bdd9f4 5497 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5498 if (err)
5499 return err;
5500
29cbe68c
JB		 5501 wdev_lock(wdev);
5502 if (!wdev->mesh_id_len)
5503 err = -ENOLINK;
5504
5505 if (!err)
e35e4d28 5506 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5507
5508 wdev_unlock(wdev);
5509
5510 return err;
93da9cc1 5511}
5512
ad30ca2c
AN		 5513static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5514 struct sk_buff *msg)
f130347c 5515{
f130347c
LR		 5516 struct nlattr *nl_reg_rules;
5517 unsigned int i;
f130347c 5518
458f4f9e
JB		 5519 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5520 (regdom->dfs_region &&
5521 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5522 goto nla_put_failure;
458f4f9e 5523
f130347c
LR		 5524 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5525 if (!nl_reg_rules)
ad30ca2c 5526 goto nla_put_failure;
f130347c 5527
458f4f9e 5528 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5529 struct nlattr *nl_reg_rule;
5530 const struct ieee80211_reg_rule *reg_rule;
5531 const struct ieee80211_freq_range *freq_range;
5532 const struct ieee80211_power_rule *power_rule;
97524820 5533 unsigned int max_bandwidth_khz;
f130347c 5534
458f4f9e 5535 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5536 freq_range = &reg_rule->freq_range;
5537 power_rule = &reg_rule->power_rule;
5538
5539 nl_reg_rule = nla_nest_start(msg, i);
5540 if (!nl_reg_rule)
ad30ca2c 5541 goto nla_put_failure;
f130347c 5542
97524820
JD		 5543 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5544 if (!max_bandwidth_khz)
5545 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5546 reg_rule);
5547
9360ffd1
DM		 5548 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5549 reg_rule->flags) ||
5550 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5551 freq_range->start_freq_khz) ||
5552 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5553 freq_range->end_freq_khz) ||
5554 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5555 max_bandwidth_khz) ||
9360ffd1
DM		 5556 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5557 power_rule->max_antenna_gain) ||
5558 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5559 power_rule->max_eirp) ||
5560 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5561 reg_rule->dfs_cac_ms))
ad30ca2c 5562 goto nla_put_failure;
f130347c
LR		 5563
5564 nla_nest_end(msg, nl_reg_rule);
5565 }
5566
5567 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5568 return 0;
5569
5570nla_put_failure:
5571 return -EMSGSIZE;
5572}
5573
5574static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5575{
5576 const struct ieee80211_regdomain *regdom = NULL;
5577 struct cfg80211_registered_device *rdev;
5578 struct wiphy *wiphy = NULL;
5579 struct sk_buff *msg;
5580 void *hdr;
5581
5582 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5583 if (!msg)
5584 return -ENOBUFS;
5585
5586 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5587 NL80211_CMD_GET_REG);
5588 if (!hdr)
5589 goto put_failure;
5590
5591 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5592 bool self_managed;
5593
ad30ca2c
AN		 5594 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5595 if (IS_ERR(rdev)) {
5596 nlmsg_free(msg);
5597 return PTR_ERR(rdev);
5598 }
5599
5600 wiphy = &rdev->wiphy;
1bdd716c
AN		 5601 self_managed = wiphy->regulatory_flags &
5602 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5603 regdom = get_wiphy_regdom(wiphy);
5604
1bdd716c
AN		 5605 /* a self-managed-reg device must have a private regdom */
5606 if (WARN_ON(!regdom && self_managed)) {
5607 nlmsg_free(msg);
5608 return -EINVAL;
5609 }
5610
ad30ca2c
AN		 5611 if (regdom &&
5612 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5613 goto nla_put_failure;
5614 }
5615
5616 if (!wiphy && reg_last_request_cell_base() &&
5617 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5618 NL80211_USER_REG_HINT_CELL_BASE))
5619 goto nla_put_failure;
5620
5621 rcu_read_lock();
5622
5623 if (!regdom)
5624 regdom = rcu_dereference(cfg80211_regdomain);
5625
5626 if (nl80211_put_regdom(regdom, msg))
5627 goto nla_put_failure_rcu;
5628
5629 rcu_read_unlock();
f130347c
LR		 5630
5631 genlmsg_end(msg, hdr);
5fe231e8 5632 return genlmsg_reply(msg, info);
f130347c 5633
458f4f9e
JB		 5634nla_put_failure_rcu:
5635 rcu_read_unlock();
f130347c
LR		 5636nla_put_failure:
5637 genlmsg_cancel(msg, hdr);
efe1cf0c 5638put_failure:
d080e275 5639 nlmsg_free(msg);
5fe231e8 5640 return -EMSGSIZE;
f130347c
LR		 5641}
5642
ad30ca2c
AN		 5643static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5644 u32 seq, int flags, struct wiphy *wiphy,
5645 const struct ieee80211_regdomain *regdom)
5646{
5647 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5648 NL80211_CMD_GET_REG);
5649
5650 if (!hdr)
5651 return -1;
5652
5653 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5654
5655 if (nl80211_put_regdom(regdom, msg))
5656 goto nla_put_failure;
5657
5658 if (!wiphy && reg_last_request_cell_base() &&
5659 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5660 NL80211_USER_REG_HINT_CELL_BASE))
5661 goto nla_put_failure;
5662
5663 if (wiphy &&
5664 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5665 goto nla_put_failure;
5666
1bdd716c
AN		 5667 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5668 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5669 goto nla_put_failure;
5670
053c095a
JB		 5671 genlmsg_end(msg, hdr);
5672 return 0;
ad30ca2c
AN		 5673
5674nla_put_failure:
5675 genlmsg_cancel(msg, hdr);
5676 return -EMSGSIZE;
5677}
5678
5679static int nl80211_get_reg_dump(struct sk_buff *skb,
5680 struct netlink_callback *cb)
5681{
5682 const struct ieee80211_regdomain *regdom = NULL;
5683 struct cfg80211_registered_device *rdev;
5684 int err, reg_idx, start = cb->args[2];
5685
5686 rtnl_lock();
5687
5688 if (cfg80211_regdomain && start == 0) {
5689 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5690 NLM_F_MULTI, NULL,
5691 rtnl_dereference(cfg80211_regdomain));
5692 if (err < 0)
5693 goto out_err;
5694 }
5695
5696 /* the global regdom is idx 0 */
5697 reg_idx = 1;
5698 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5699 regdom = get_wiphy_regdom(&rdev->wiphy);
5700 if (!regdom)
5701 continue;
5702
5703 if (++reg_idx <= start)
5704 continue;
5705
5706 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5707 NLM_F_MULTI, &rdev->wiphy, regdom);
5708 if (err < 0) {
5709 reg_idx--;
5710 break;
5711 }
5712 }
5713
5714 cb->args[2] = reg_idx;
5715 err = skb->len;
5716out_err:
5717 rtnl_unlock();
5718 return err;
5719}
5720
b6863036
JB		 5721#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5722static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5723 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5724 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5725 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5726 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5727 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5728 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5729 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5730};
5731
5732static int parse_reg_rule(struct nlattr *tb[],
5733 struct ieee80211_reg_rule *reg_rule)
5734{
5735 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5736 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5737
5738 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5739 return -EINVAL;
5740 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5741 return -EINVAL;
5742 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5743 return -EINVAL;
5744 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5745 return -EINVAL;
5746 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5747 return -EINVAL;
5748
5749 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5750
5751 freq_range->start_freq_khz =
5752 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5753 freq_range->end_freq_khz =
5754 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5755 freq_range->max_bandwidth_khz =
5756 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5757
5758 power_rule->max_eirp =
5759 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5760
5761 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5762 power_rule->max_antenna_gain =
5763 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5764
5765 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5766 reg_rule->dfs_cac_ms =
5767 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5768
5769 return 0;
5770}
5771
b2e1b302
LR		 5772static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5773{
5774 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5775 struct nlattr *nl_reg_rule;
ea372c54
JB		 5776 char *alpha2;
5777 int rem_reg_rules, r;
b2e1b302 5778 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5779 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5780 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5781
5782 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5783 return -EINVAL;
5784
5785 if (!info->attrs[NL80211_ATTR_REG_RULES])
5786 return -EINVAL;
5787
5788 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5789
8b60b078
LR		 5790 if (info->attrs[NL80211_ATTR_DFS_REGION])
5791 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5792
b2e1b302 5793 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5794 rem_reg_rules) {
b2e1b302
LR		 5795 num_rules++;
5796 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5797 return -EINVAL;
b2e1b302
LR		 5798 }
5799
e438768f
LR		 5800 if (!reg_is_valid_request(alpha2))
5801 return -EINVAL;
5802
b2e1b302 5803 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5804 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5805
5806 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5807 if (!rd)
5808 return -ENOMEM;
b2e1b302
LR		 5809
5810 rd->n_reg_rules = num_rules;
5811 rd->alpha2[0] = alpha2[0];
5812 rd->alpha2[1] = alpha2[1];
5813
8b60b078
LR		 5814 /*
5815 * Disable DFS master mode if the DFS region was
5816 * not supported or known on this kernel.
5817 */
5818 if (reg_supported_dfs_region(dfs_region))
5819 rd->dfs_region = dfs_region;
5820
b2e1b302 5821 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5822 rem_reg_rules) {
ae811e21
JB		 5823 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5824 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5825 reg_rule_policy);
5826 if (r)
5827 goto bad_reg;
b2e1b302
LR		 5828 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5829 if (r)
5830 goto bad_reg;
5831
5832 rule_idx++;
5833
d0e18f83
LR		 5834 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5835 r = -EINVAL;
b2e1b302 5836 goto bad_reg;
d0e18f83 5837 }
b2e1b302
LR		 5838 }
5839
c37722bd 5840 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5841 /* set_regdom took ownership */
1a919318 5842 rd = NULL;
b2e1b302 5843
d2372b31 5844 bad_reg:
b2e1b302 5845 kfree(rd);
d0e18f83 5846 return r;
b2e1b302 5847}
b6863036 5848#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5849
83f5e2cf
JB		 5850static int validate_scan_freqs(struct nlattr *freqs)
5851{
5852 struct nlattr *attr1, *attr2;
5853 int n_channels = 0, tmp1, tmp2;
5854
5855 nla_for_each_nested(attr1, freqs, tmp1) {
5856 n_channels++;
5857 /*
5858 * Some hardware has a limited channel list for
5859 * scanning, and it is pretty much nonsensical
5860 * to scan for a channel twice, so disallow that
5861 * and don't require drivers to check that the
5862 * channel list they get isn't longer than what
5863 * they can scan, as long as they can scan all
5864 * the channels they registered at once.
5865 */
5866 nla_for_each_nested(attr2, freqs, tmp2)
5867 if (attr1 != attr2 &&
5868 nla_get_u32(attr1) == nla_get_u32(attr2))
5869 return 0;
5870 }
5871
5872 return n_channels;
5873}
5874
57fbcce3 5875static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 5876{
57fbcce3 5877 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 5878}
5879
5880static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
5881 struct cfg80211_bss_selection *bss_select)
5882{
5883 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
5884 struct nlattr *nest;
5885 int err;
5886 bool found = false;
5887 int i;
5888
5889 /* only process one nested attribute */
5890 nest = nla_data(nla);
5891 if (!nla_ok(nest, nla_len(nest)))
5892 return -EINVAL;
5893
5894 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
5895 nla_len(nest), nl80211_bss_select_policy);
5896 if (err)
5897 return err;
5898
5899 /* only one attribute may be given */
5900 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
5901 if (attr[i]) {
5902 if (found)
5903 return -EINVAL;
5904 found = true;
5905 }
5906 }
5907
5908 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
5909
5910 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
5911 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
5912
5913 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
5914 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
5915 bss_select->param.band_pref =
5916 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
5917 if (!is_band_valid(wiphy, bss_select->param.band_pref))
5918 return -EINVAL;
5919 }
5920
5921 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
5922 struct nl80211_bss_select_rssi_adjust *adj_param;
5923
5924 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
5925 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
5926 bss_select->param.adjust.band = adj_param->band;
5927 bss_select->param.adjust.delta = adj_param->delta;
5928 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
5929 return -EINVAL;
5930 }
5931
5932 /* user-space did not provide behaviour attribute */
5933 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
5934 return -EINVAL;
5935
5936 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
5937 return -EINVAL;
5938
5939 return 0;
5940}
5941
ad2b26ab
JB		 5942static int nl80211_parse_random_mac(struct nlattr **attrs,
5943 u8 *mac_addr, u8 *mac_addr_mask)
5944{
5945 int i;
5946
5947 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5948 eth_zero_addr(mac_addr);
5949 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5950 mac_addr[0] = 0x2;
5951 mac_addr_mask[0] = 0x3;
5952
5953 return 0;
5954 }
5955
5956 /* need both or none */
5957 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5958 return -EINVAL;
5959
5960 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5961 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5962
5963 /* don't allow or configure an mcast address */
5964 if (!is_multicast_ether_addr(mac_addr_mask) ||
5965 is_multicast_ether_addr(mac_addr))
5966 return -EINVAL;
5967
5968 /*
5969 * allow users to pass a MAC address that has bits set outside
5970 * of the mask, but don't bother drivers with having to deal
5971 * with such bits
5972 */
5973 for (i = 0; i < ETH_ALEN; i++)
5974 mac_addr[i] &= mac_addr_mask[i];
5975
5976 return 0;
5977}
5978
2a519311
JB		 5979static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5980{
4c476991 5981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5982 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5983 struct cfg80211_scan_request *request;
2a519311
JB		 5984 struct nlattr *attr;
5985 struct wiphy *wiphy;
83f5e2cf 5986 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5987 size_t ie_len;
2a519311 5988
f4a11bb0
JB		 5989 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5990 return -EINVAL;
5991
79c97e97 5992 wiphy = &rdev->wiphy;
2a519311 5993
4c476991
JB		 5994 if (!rdev->ops->scan)
5995 return -EOPNOTSUPP;
2a519311 5996
f9d15d16 5997 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5998 err = -EBUSY;
5999 goto unlock;
6000 }
2a519311
JB		 6001
6002 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6003 n_channels = validate_scan_freqs(
6004 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6005 if (!n_channels) {
6006 err = -EINVAL;
6007 goto unlock;
6008 }
2a519311 6009 } else {
bdfbec2d 6010 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6011 }
6012
6013 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6014 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6015 n_ssids++;
6016
f9f47529
JB		 6017 if (n_ssids > wiphy->max_scan_ssids) {
6018 err = -EINVAL;
6019 goto unlock;
6020 }
2a519311 6021
70692ad2
JM		 6022 if (info->attrs[NL80211_ATTR_IE])
6023 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6024 else
6025 ie_len = 0;
6026
f9f47529
JB		 6027 if (ie_len > wiphy->max_scan_ie_len) {
6028 err = -EINVAL;
6029 goto unlock;
6030 }
18a83659 6031
2a519311 6032 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6033 + sizeof(*request->ssids) * n_ssids
6034 + sizeof(*request->channels) * n_channels
70692ad2 6035 + ie_len, GFP_KERNEL);
f9f47529
JB		 6036 if (!request) {
6037 err = -ENOMEM;
6038 goto unlock;
6039 }
2a519311 6040
2a519311 6041 if (n_ssids)
5ba63533 6042 request->ssids = (void *)&request->channels[n_channels];
2a519311 6043 request->n_ssids = n_ssids;
70692ad2 6044 if (ie_len) {
13874e4b 6045 if (n_ssids)
70692ad2
JM		 6046 request->ie = (void *)(request->ssids + n_ssids);
6047 else
6048 request->ie = (void *)(request->channels + n_channels);
6049 }
2a519311 6050
584991dc 6051 i = 0;
2a519311
JB		 6052 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6053 /* user specified, bail out if channel not found */
2a519311 6054 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6055 struct ieee80211_channel *chan;
6056
6057 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6058
6059 if (!chan) {
2a519311
JB		 6060 err = -EINVAL;
6061 goto out_free;
6062 }
584991dc
JB		 6063
6064 /* ignore disabled channels */
6065 if (chan->flags & IEEE80211_CHAN_DISABLED)
6066 continue;
6067
6068 request->channels[i] = chan;
2a519311
JB		 6069 i++;
6070 }
6071 } else {
57fbcce3 6072 enum nl80211_band band;
34850ab2 6073
2a519311 6074 /* all channels */
57fbcce3 6075 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311
JB		 6076 int j;
6077 if (!wiphy->bands[band])
6078 continue;
6079 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6080 struct ieee80211_channel *chan;
6081
6082 chan = &wiphy->bands[band]->channels[j];
6083
6084 if (chan->flags & IEEE80211_CHAN_DISABLED)
6085 continue;
6086
6087 request->channels[i] = chan;
2a519311
JB		 6088 i++;
6089 }
6090 }
6091 }
6092
584991dc
JB		 6093 if (!i) {
6094 err = -EINVAL;
6095 goto out_free;
6096 }
6097
6098 request->n_channels = i;
6099
2a519311 6100 i = 0;
13874e4b 6101 if (n_ssids) {
2a519311 6102 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6103 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6104 err = -EINVAL;
6105 goto out_free;
6106 }
57a27e1d 6107 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6108 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6109 i++;
6110 }
6111 }
6112
70692ad2
JM		 6113 if (info->attrs[NL80211_ATTR_IE]) {
6114 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6115 memcpy((void *)request->ie,
6116 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6117 request->ie_len);
6118 }
6119
57fbcce3 6120 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6121 if (wiphy->bands[i])
6122 request->rates[i] =
6123 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6124
6125 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6126 nla_for_each_nested(attr,
6127 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6128 tmp) {
57fbcce3 6129 enum nl80211_band band = nla_type(attr);
34850ab2 6130
57fbcce3 6131 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6132 err = -EINVAL;
6133 goto out_free;
6134 }
1b09cd82
FF		 6135
6136 if (!wiphy->bands[band])
6137 continue;
6138
34850ab2
JB		 6139 err = ieee80211_get_ratemask(wiphy->bands[band],
6140 nla_data(attr),
6141 nla_len(attr),
6142 &request->rates[band]);
6143 if (err)
6144 goto out_free;
6145 }
6146 }
6147
46856bbf 6148 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6149 request->flags = nla_get_u32(
6150 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6151 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6152 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6153 err = -EOPNOTSUPP;
6154 goto out_free;
6155 }
ad2b26ab
JB		 6156
6157 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6158 if (!(wiphy->features &
6159 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6160 err = -EOPNOTSUPP;
6161 goto out_free;
6162 }
6163
6164 if (wdev->current_bss) {
6165 err = -EOPNOTSUPP;
6166 goto out_free;
6167 }
6168
6169 err = nl80211_parse_random_mac(info->attrs,
6170 request->mac_addr,
6171 request->mac_addr_mask);
6172 if (err)
6173 goto out_free;
6174 }
46856bbf 6175 }
ed473771 6176
e9f935e3
RM		 6177 request->no_cck =
6178 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6179
818965d3
JM		 6180 if (info->attrs[NL80211_ATTR_MAC])
6181 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6182 ETH_ALEN);
6183 else
6184 eth_broadcast_addr(request->bssid);
6185
fd014284 6186 request->wdev = wdev;
79c97e97 6187 request->wiphy = &rdev->wiphy;
15d6030b 6188 request->scan_start = jiffies;
2a519311 6189
79c97e97 6190 rdev->scan_req = request;
e35e4d28 6191 err = rdev_scan(rdev, request);
2a519311 6192
463d0183 6193 if (!err) {
fd014284
JB		 6194 nl80211_send_scan_start(rdev, wdev);
6195 if (wdev->netdev)
6196 dev_hold(wdev->netdev);
4c476991 6197 } else {
2a519311 6198 out_free:
79c97e97 6199 rdev->scan_req = NULL;
2a519311
JB		 6200 kfree(request);
6201 }
3b85875a 6202
f9f47529 6203 unlock:
2a519311
JB		 6204 return err;
6205}
6206
91d3ab46
VK		 6207static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6208{
6209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6210 struct wireless_dev *wdev = info->user_ptr[1];
6211
6212 if (!rdev->ops->abort_scan)
6213 return -EOPNOTSUPP;
6214
6215 if (rdev->scan_msg)
6216 return 0;
6217
6218 if (!rdev->scan_req)
6219 return -ENOENT;
6220
6221 rdev_abort_scan(rdev, wdev);
6222 return 0;
6223}
6224
3b06d277
AS		 6225static int
6226nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6227 struct cfg80211_sched_scan_request *request,
6228 struct nlattr **attrs)
6229{
6230 int tmp, err, i = 0;
6231 struct nlattr *attr;
6232
6233 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6234 u32 interval;
6235
6236 /*
6237 * If scan plans are not specified,
6238 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6239 * case one scan plan will be set with the specified scan
6240 * interval and infinite number of iterations.
6241 */
6242 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6243 return -EINVAL;
6244
6245 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6246 if (!interval)
6247 return -EINVAL;
6248
6249 request->scan_plans[0].interval =
6250 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6251 if (!request->scan_plans[0].interval)
6252 return -EINVAL;
6253
6254 if (request->scan_plans[0].interval >
6255 wiphy->max_sched_scan_plan_interval)
6256 request->scan_plans[0].interval =
6257 wiphy->max_sched_scan_plan_interval;
6258
6259 return 0;
6260 }
6261
6262 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6263 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6264
6265 if (WARN_ON(i >= n_plans))
6266 return -EINVAL;
6267
6268 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6269 nla_data(attr), nla_len(attr),
6270 nl80211_plan_policy);
6271 if (err)
6272 return err;
6273
6274 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6275 return -EINVAL;
6276
6277 request->scan_plans[i].interval =
6278 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6279 if (!request->scan_plans[i].interval ||
6280 request->scan_plans[i].interval >
6281 wiphy->max_sched_scan_plan_interval)
6282 return -EINVAL;
6283
6284 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6285 request->scan_plans[i].iterations =
6286 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6287 if (!request->scan_plans[i].iterations ||
6288 (request->scan_plans[i].iterations >
6289 wiphy->max_sched_scan_plan_iterations))
6290 return -EINVAL;
6291 } else if (i < n_plans - 1) {
6292 /*
6293 * All scan plans but the last one must specify
6294 * a finite number of iterations
6295 */
6296 return -EINVAL;
6297 }
6298
6299 i++;
6300 }
6301
6302 /*
6303 * The last scan plan must not specify the number of
6304 * iterations, it is supposed to run infinitely
6305 */
6306 if (request->scan_plans[n_plans - 1].iterations)
6307 return -EINVAL;
6308
6309 return 0;
6310}
6311
256da02d 6312static struct cfg80211_sched_scan_request *
ad2b26ab 6313nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6314 struct nlattr **attrs)
807f8a8c
LC		 6315{
6316 struct cfg80211_sched_scan_request *request;
807f8a8c 6317 struct nlattr *attr;
3b06d277 6318 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6319 enum nl80211_band band;
807f8a8c 6320 size_t ie_len;
a1f1c21c 6321 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6322 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6323
256da02d
LC		 6324 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6325 return ERR_PTR(-EINVAL);
807f8a8c 6326
256da02d 6327 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6328 n_channels = validate_scan_freqs(
256da02d 6329 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6330 if (!n_channels)
256da02d 6331 return ERR_PTR(-EINVAL);
807f8a8c 6332 } else {
bdfbec2d 6333 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6334 }
6335
256da02d
LC		 6336 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6337 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6338 tmp)
6339 n_ssids++;
6340
93b6aa69 6341 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6342 return ERR_PTR(-EINVAL);
807f8a8c 6343
ea73cbce
JB		 6344 /*
6345 * First, count the number of 'real' matchsets. Due to an issue with
6346 * the old implementation, matchsets containing only the RSSI attribute
6347 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6348 * RSSI for all matchsets, rather than their own matchset for reporting
6349 * all APs with a strong RSSI. This is needed to be compatible with
6350 * older userspace that treated a matchset with only the RSSI as the
6351 * global RSSI for all other matchsets - if there are other matchsets.
6352 */
256da02d 6353 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6354 nla_for_each_nested(attr,
256da02d 6355 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6356 tmp) {
6357 struct nlattr *rssi;
6358
6359 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6360 nla_data(attr), nla_len(attr),
6361 nl80211_match_policy);
6362 if (err)
256da02d 6363 return ERR_PTR(err);
ea73cbce
JB		 6364 /* add other standalone attributes here */
6365 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6366 n_match_sets++;
6367 continue;
6368 }
6369 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6370 if (rssi)
6371 default_match_rssi = nla_get_s32(rssi);
6372 }
6373 }
6374
6375 /* However, if there's no other matchset, add the RSSI one */
6376 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6377 n_match_sets = 1;
a1f1c21c
LC		 6378
6379 if (n_match_sets > wiphy->max_match_sets)
256da02d 6380 return ERR_PTR(-EINVAL);
a1f1c21c 6381
256da02d
LC		 6382 if (attrs[NL80211_ATTR_IE])
6383 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6384 else
6385 ie_len = 0;
6386
5a865bad 6387 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6388 return ERR_PTR(-EINVAL);
c10841ca 6389
3b06d277
AS		 6390 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6391 /*
6392 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6393 * each scan plan already specifies its own interval
6394 */
6395 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6396 return ERR_PTR(-EINVAL);
6397
6398 nla_for_each_nested(attr,
6399 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6400 n_plans++;
6401 } else {
6402 /*
6403 * The scan interval attribute is kept for backward
6404 * compatibility. If no scan plans are specified and sched scan
6405 * interval is specified, one scan plan will be set with this
6406 * scan interval and infinite number of iterations.
6407 */
6408 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6409 return ERR_PTR(-EINVAL);
6410
6411 n_plans = 1;
6412 }
6413
6414 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6415 return ERR_PTR(-EINVAL);
6416
807f8a8c 6417 request = kzalloc(sizeof(*request)
a2cd43c5 6418 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6419 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6420 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6421 + sizeof(*request->channels) * n_channels
807f8a8c 6422 + ie_len, GFP_KERNEL);
256da02d
LC		 6423 if (!request)
6424 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6425
6426 if (n_ssids)
6427 request->ssids = (void *)&request->channels[n_channels];
6428 request->n_ssids = n_ssids;
6429 if (ie_len) {
13874e4b 6430 if (n_ssids)
807f8a8c
LC		 6431 request->ie = (void *)(request->ssids + n_ssids);
6432 else
6433 request->ie = (void *)(request->channels + n_channels);
6434 }
6435
a1f1c21c
LC		 6436 if (n_match_sets) {
6437 if (request->ie)
6438 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6439 else if (n_ssids)
a1f1c21c
LC		 6440 request->match_sets =
6441 (void *)(request->ssids + n_ssids);
6442 else
6443 request->match_sets =
6444 (void *)(request->channels + n_channels);
6445 }
6446 request->n_match_sets = n_match_sets;
6447
3b06d277
AS		 6448 if (n_match_sets)
6449 request->scan_plans = (void *)(request->match_sets +
6450 n_match_sets);
6451 else if (request->ie)
6452 request->scan_plans = (void *)(request->ie + ie_len);
6453 else if (n_ssids)
6454 request->scan_plans = (void *)(request->ssids + n_ssids);
6455 else
6456 request->scan_plans = (void *)(request->channels + n_channels);
6457
6458 request->n_scan_plans = n_plans;
6459
807f8a8c 6460 i = 0;
256da02d 6461 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6462 /* user specified, bail out if channel not found */
6463 nla_for_each_nested(attr,
256da02d 6464 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6465 tmp) {
6466 struct ieee80211_channel *chan;
6467
6468 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6469
6470 if (!chan) {
6471 err = -EINVAL;
6472 goto out_free;
6473 }
6474
6475 /* ignore disabled channels */
6476 if (chan->flags & IEEE80211_CHAN_DISABLED)
6477 continue;
6478
6479 request->channels[i] = chan;
6480 i++;
6481 }
6482 } else {
6483 /* all channels */
57fbcce3 6484 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c
LC		 6485 int j;
6486 if (!wiphy->bands[band])
6487 continue;
6488 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6489 struct ieee80211_channel *chan;
6490
6491 chan = &wiphy->bands[band]->channels[j];
6492
6493 if (chan->flags & IEEE80211_CHAN_DISABLED)
6494 continue;
6495
6496 request->channels[i] = chan;
6497 i++;
6498 }
6499 }
6500 }
6501
6502 if (!i) {
6503 err = -EINVAL;
6504 goto out_free;
6505 }
6506
6507 request->n_channels = i;
6508
6509 i = 0;
13874e4b 6510 if (n_ssids) {
256da02d 6511 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6512 tmp) {
57a27e1d 6513 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6514 err = -EINVAL;
6515 goto out_free;
6516 }
57a27e1d 6517 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6518 memcpy(request->ssids[i].ssid, nla_data(attr),
6519 nla_len(attr));
807f8a8c
LC		 6520 i++;
6521 }
6522 }
6523
a1f1c21c 6524 i = 0;
256da02d 6525 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6526 nla_for_each_nested(attr,
256da02d 6527 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6528 tmp) {
88e920b4 6529 struct nlattr *ssid, *rssi;
a1f1c21c 6530
ae811e21
JB		 6531 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6532 nla_data(attr), nla_len(attr),
6533 nl80211_match_policy);
6534 if (err)
6535 goto out_free;
4a4ab0d7 6536 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6537 if (ssid) {
ea73cbce
JB		 6538 if (WARN_ON(i >= n_match_sets)) {
6539 /* this indicates a programming error,
6540 * the loop above should have verified
6541 * things properly
6542 */
6543 err = -EINVAL;
6544 goto out_free;
6545 }
6546
a1f1c21c
LC		 6547 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6548 err = -EINVAL;
6549 goto out_free;
6550 }
6551 memcpy(request->match_sets[i].ssid.ssid,
6552 nla_data(ssid), nla_len(ssid));
6553 request->match_sets[i].ssid.ssid_len =
6554 nla_len(ssid);
56ab364f 6555 /* special attribute - old implementation w/a */
ea73cbce
JB		 6556 request->match_sets[i].rssi_thold =
6557 default_match_rssi;
6558 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6559 if (rssi)
6560 request->match_sets[i].rssi_thold =
6561 nla_get_s32(rssi);
a1f1c21c
LC		 6562 }
6563 i++;
6564 }
ea73cbce
JB		 6565
6566 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6567 if (i == 0 && n_match_sets)
ea73cbce
JB		 6568 request->match_sets[0].rssi_thold = default_match_rssi;
6569
6570 request->min_rssi_thold = INT_MAX;
6571 for (i = 0; i < n_match_sets; i++)
6572 request->min_rssi_thold =
6573 min(request->match_sets[i].rssi_thold,
6574 request->min_rssi_thold);
6575 } else {
6576 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6577 }
6578
9900e484
JB		 6579 if (ie_len) {
6580 request->ie_len = ie_len;
807f8a8c 6581 memcpy((void *)request->ie,
256da02d 6582 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6583 request->ie_len);
6584 }
6585
256da02d 6586 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6587 request->flags = nla_get_u32(
256da02d 6588 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6589 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6590 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6591 err = -EOPNOTSUPP;
6592 goto out_free;
6593 }
ad2b26ab
JB		 6594
6595 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6596 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6597
6598 if (!wdev) /* must be net-detect */
6599 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6600
6601 if (!(wiphy->features & flg)) {
6602 err = -EOPNOTSUPP;
6603 goto out_free;
6604 }
6605
6606 if (wdev && wdev->current_bss) {
6607 err = -EOPNOTSUPP;
6608 goto out_free;
6609 }
6610
6611 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6612 request->mac_addr_mask);
6613 if (err)
6614 goto out_free;
6615 }
46856bbf 6616 }
ed473771 6617
9c748934
LC		 6618 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6619 request->delay =
6620 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6621
3b06d277
AS		 6622 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6623 if (err)
6624 goto out_free;
6625
15d6030b 6626 request->scan_start = jiffies;
807f8a8c 6627
256da02d 6628 return request;
807f8a8c
LC		 6629
6630out_free:
6631 kfree(request);
256da02d
LC		 6632 return ERR_PTR(err);
6633}
6634
6635static int nl80211_start_sched_scan(struct sk_buff *skb,
6636 struct genl_info *info)
6637{
6638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6639 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6640 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6641 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6642 int err;
6643
6644 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6645 !rdev->ops->sched_scan_start)
6646 return -EOPNOTSUPP;
6647
6648 if (rdev->sched_scan_req)
6649 return -EINPROGRESS;
6650
31a60ed1
JR		 6651 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6652 info->attrs);
6653
6654 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6655 if (err)
6656 goto out_err;
6657
31a60ed1 6658 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6659 if (err)
6660 goto out_free;
6661
31a60ed1
JR		 6662 sched_scan_req->dev = dev;
6663 sched_scan_req->wiphy = &rdev->wiphy;
6664
93a1e86c
JR		 6665 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6666 sched_scan_req->owner_nlportid = info->snd_portid;
6667
31a60ed1 6668 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6669
6670 nl80211_send_sched_scan(rdev, dev,
6671 NL80211_CMD_START_SCHED_SCAN);
6672 return 0;
6673
6674out_free:
31a60ed1 6675 kfree(sched_scan_req);
256da02d 6676out_err:
807f8a8c
LC		 6677 return err;
6678}
6679
6680static int nl80211_stop_sched_scan(struct sk_buff *skb,
6681 struct genl_info *info)
6682{
6683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6684
6685 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6686 !rdev->ops->sched_scan_stop)
6687 return -EOPNOTSUPP;
6688
5fe231e8 6689 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6690}
6691
04f39047
SW		 6692static int nl80211_start_radar_detection(struct sk_buff *skb,
6693 struct genl_info *info)
6694{
6695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6696 struct net_device *dev = info->user_ptr[1];
6697 struct wireless_dev *wdev = dev->ieee80211_ptr;
6698 struct cfg80211_chan_def chandef;
55f7435c 6699 enum nl80211_dfs_regions dfs_region;
31559f35 6700 unsigned int cac_time_ms;
04f39047
SW		 6701 int err;
6702
55f7435c
LR		 6703 dfs_region = reg_get_dfs_region(wdev->wiphy);
6704 if (dfs_region == NL80211_DFS_UNSET)
6705 return -EINVAL;
6706
04f39047
SW		 6707 err = nl80211_parse_chandef(rdev, info, &chandef);
6708 if (err)
6709 return err;
6710
ff311bc1
SW		 6711 if (netif_carrier_ok(dev))
6712 return -EBUSY;
6713
04f39047
SW		 6714 if (wdev->cac_started)
6715 return -EBUSY;
6716
2beb6dab 6717 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6718 wdev->iftype);
04f39047
SW		 6719 if (err < 0)
6720 return err;
6721
6722 if (err == 0)
6723 return -EINVAL;
6724
fe7c3a1f 6725 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6726 return -EINVAL;
6727
6728 if (!rdev->ops->start_radar_detection)
6729 return -EOPNOTSUPP;
6730
31559f35
JD		 6731 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6732 if (WARN_ON(!cac_time_ms))
6733 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6734
a1056b1b 6735 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6736 if (!err) {
9e0e2961 6737 wdev->chandef = chandef;
04f39047
SW		 6738 wdev->cac_started = true;
6739 wdev->cac_start_time = jiffies;
31559f35 6740 wdev->cac_time_ms = cac_time_ms;
04f39047 6741 }
04f39047
SW		 6742 return err;
6743}
6744
16ef1fe2
SW		 6745static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6746{
6747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6748 struct net_device *dev = info->user_ptr[1];
6749 struct wireless_dev *wdev = dev->ieee80211_ptr;
6750 struct cfg80211_csa_settings params;
6751 /* csa_attrs is defined static to avoid waste of stack size - this
6752 * function is called under RTNL lock, so this should not be a problem.
6753 */
6754 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6755 int err;
ee4bc9e7 6756 bool need_new_beacon = false;
9a774c78 6757 int len, i;
252e07ca 6758 u32 cs_count;
16ef1fe2
SW		 6759
6760 if (!rdev->ops->channel_switch ||
6761 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6762 return -EOPNOTSUPP;
6763
ee4bc9e7
SW		 6764 switch (dev->ieee80211_ptr->iftype) {
6765 case NL80211_IFTYPE_AP:
6766 case NL80211_IFTYPE_P2P_GO:
6767 need_new_beacon = true;
6768
6769 /* useless if AP is not running */
6770 if (!wdev->beacon_interval)
1ff79dfa 6771 return -ENOTCONN;
ee4bc9e7
SW		 6772 break;
6773 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6774 if (!wdev->ssid_len)
6775 return -ENOTCONN;
6776 break;
c6da674a 6777 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6778 if (!wdev->mesh_id_len)
6779 return -ENOTCONN;
ee4bc9e7
SW		 6780 break;
6781 default:
16ef1fe2 6782 return -EOPNOTSUPP;
ee4bc9e7 6783 }
16ef1fe2
SW		 6784
6785 memset(&params, 0, sizeof(params));
6786
6787 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6788 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6789 return -EINVAL;
6790
6791 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6792 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6793 return -EINVAL;
6794
252e07ca
LC		 6795 /* Even though the attribute is u32, the specification says
6796 * u8, so let's make sure we don't overflow.
6797 */
6798 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6799 if (cs_count > 255)
6800 return -EINVAL;
6801
6802 params.count = cs_count;
16ef1fe2 6803
ee4bc9e7
SW		 6804 if (!need_new_beacon)
6805 goto skip_beacons;
6806
16ef1fe2
SW		 6807 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6808 if (err)
6809 return err;
6810
6811 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6812 info->attrs[NL80211_ATTR_CSA_IES],
6813 nl80211_policy);
6814 if (err)
6815 return err;
6816
6817 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6818 if (err)
6819 return err;
6820
6821 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6822 return -EINVAL;
6823
9a774c78
AO		 6824 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6825 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6826 return -EINVAL;
6827
9a774c78
AO		 6828 params.n_counter_offsets_beacon = len / sizeof(u16);
6829 if (rdev->wiphy.max_num_csa_counters &&
6830 (params.n_counter_offsets_beacon >
6831 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6832 return -EINVAL;
6833
9a774c78
AO		 6834 params.counter_offsets_beacon =
6835 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6836
6837 /* sanity checks - counters should fit and be the same */
6838 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6839 u16 offset = params.counter_offsets_beacon[i];
6840
6841 if (offset >= params.beacon_csa.tail_len)
6842 return -EINVAL;
6843
6844 if (params.beacon_csa.tail[offset] != params.count)
6845 return -EINVAL;
6846 }
6847
16ef1fe2 6848 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6849 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6850 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6851 return -EINVAL;
6852
9a774c78
AO		 6853 params.n_counter_offsets_presp = len / sizeof(u16);
6854 if (rdev->wiphy.max_num_csa_counters &&
6855 (params.n_counter_offsets_beacon >
6856 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6857 return -EINVAL;
9a774c78
AO		 6858
6859 params.counter_offsets_presp =
6860 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6861
6862 /* sanity checks - counters should fit and be the same */
6863 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6864 u16 offset = params.counter_offsets_presp[i];
6865
6866 if (offset >= params.beacon_csa.probe_resp_len)
6867 return -EINVAL;
6868
6869 if (params.beacon_csa.probe_resp[offset] !=
6870 params.count)
6871 return -EINVAL;
6872 }
16ef1fe2
SW		 6873 }
6874
ee4bc9e7 6875skip_beacons:
16ef1fe2
SW		 6876 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6877 if (err)
6878 return err;
6879
923b352f
AN		 6880 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6881 wdev->iftype))
16ef1fe2
SW		 6882 return -EINVAL;
6883
2beb6dab
LC		 6884 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6885 &params.chandef,
6886 wdev->iftype);
6887 if (err < 0)
6888 return err;
6889
dcc6c2f5 6890 if (err > 0)
2beb6dab 6891 params.radar_required = true;
16ef1fe2 6892
16ef1fe2
SW		 6893 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6894 params.block_tx = true;
6895
c56589ed
SW		 6896 wdev_lock(wdev);
6897 err = rdev_channel_switch(rdev, dev, &params);
6898 wdev_unlock(wdev);
6899
6900 return err;
16ef1fe2
SW		 6901}
6902
9720bb3a
JB		 6903static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6904 u32 seq, int flags,
2a519311 6905 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6906 struct wireless_dev *wdev,
6907 struct cfg80211_internal_bss *intbss)
2a519311 6908{
48ab905d 6909 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6910 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6911 void *hdr;
6912 struct nlattr *bss;
48ab905d
JB		 6913
6914 ASSERT_WDEV_LOCK(wdev);
2a519311 6915
15e47304 6916 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6917 NL80211_CMD_NEW_SCAN_RESULTS);
6918 if (!hdr)
6919 return -1;
6920
9720bb3a
JB		 6921 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6922
97990a06
JB		 6923 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6924 goto nla_put_failure;
6925 if (wdev->netdev &&
9360ffd1
DM		 6926 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6927 goto nla_put_failure;
2dad624e
ND		 6928 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
6929 NL80211_ATTR_PAD))
97990a06 6930 goto nla_put_failure;
2a519311
JB		 6931
6932 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6933 if (!bss)
6934 goto nla_put_failure;
9360ffd1 6935 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6936 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6937 goto nla_put_failure;
9caf0364
JB		 6938
6939 rcu_read_lock();
0e227084
JB		 6940 /* indicate whether we have probe response data or not */
6941 if (rcu_access_pointer(res->proberesp_ies) &&
6942 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6943 goto fail_unlock_rcu;
6944
6945 /* this pointer prefers to be pointed to probe response data
6946 * but is always valid
6947 */
9caf0364 6948 ies = rcu_dereference(res->ies);
8cef2c9d 6949 if (ies) {
2dad624e
ND		 6950 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
6951 NL80211_BSS_PAD))
8cef2c9d 6952 goto fail_unlock_rcu;
8cef2c9d
JB		 6953 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6954 ies->len, ies->data))
6955 goto fail_unlock_rcu;
9caf0364 6956 }
0e227084
JB		 6957
6958 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6959 ies = rcu_dereference(res->beacon_ies);
0e227084 6960 if (ies && ies->from_beacon) {
2dad624e
ND		 6961 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
6962 NL80211_BSS_PAD))
8cef2c9d
JB		 6963 goto fail_unlock_rcu;
6964 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6965 ies->len, ies->data))
6966 goto fail_unlock_rcu;
9caf0364
JB		 6967 }
6968 rcu_read_unlock();
6969
9360ffd1
DM		 6970 if (res->beacon_interval &&
6971 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6972 goto nla_put_failure;
6973 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6974 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6975 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6976 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6977 jiffies_to_msecs(jiffies - intbss->ts)))
6978 goto nla_put_failure;
2a519311 6979
6e19bc4b 6980 if (intbss->ts_boottime &&
2dad624e
ND		 6981 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6982 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 6983 goto nla_put_failure;
6984
77965c97 6985 switch (rdev->wiphy.signal_type) {
2a519311 6986 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6987 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6988 goto nla_put_failure;
2a519311
JB		 6989 break;
6990 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6991 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6992 goto nla_put_failure;
2a519311
JB		 6993 break;
6994 default:
6995 break;
6996 }
6997
48ab905d 6998 switch (wdev->iftype) {
074ac8df 6999 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7000 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7001 if (intbss == wdev->current_bss &&
7002 nla_put_u32(msg, NL80211_BSS_STATUS,
7003 NL80211_BSS_STATUS_ASSOCIATED))
7004 goto nla_put_failure;
48ab905d
JB		 7005 break;
7006 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7007 if (intbss == wdev->current_bss &&
7008 nla_put_u32(msg, NL80211_BSS_STATUS,
7009 NL80211_BSS_STATUS_IBSS_JOINED))
7010 goto nla_put_failure;
48ab905d
JB		 7011 break;
7012 default:
7013 break;
7014 }
7015
2a519311
JB		 7016 nla_nest_end(msg, bss);
7017
053c095a
JB		 7018 genlmsg_end(msg, hdr);
7019 return 0;
2a519311 7020
8cef2c9d
JB		 7021 fail_unlock_rcu:
7022 rcu_read_unlock();
2a519311
JB		 7023 nla_put_failure:
7024 genlmsg_cancel(msg, hdr);
7025 return -EMSGSIZE;
7026}
7027
97990a06 7028static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7029{
48ab905d 7030 struct cfg80211_registered_device *rdev;
2a519311 7031 struct cfg80211_internal_bss *scan;
48ab905d 7032 struct wireless_dev *wdev;
97990a06 7033 int start = cb->args[2], idx = 0;
2a519311
JB		 7034 int err;
7035
97990a06 7036 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7037 if (err)
7038 return err;
2a519311 7039
48ab905d
JB		 7040 wdev_lock(wdev);
7041 spin_lock_bh(&rdev->bss_lock);
7042 cfg80211_bss_expire(rdev);
7043
9720bb3a
JB		 7044 cb->seq = rdev->bss_generation;
7045
48ab905d 7046 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7047 if (++idx <= start)
7048 continue;
9720bb3a 7049 if (nl80211_send_bss(skb, cb,
2a519311 7050 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7051 rdev, wdev, scan) < 0) {
2a519311 7052 idx--;
67748893 7053 break;
2a519311
JB		 7054 }
7055 }
7056
48ab905d
JB		 7057 spin_unlock_bh(&rdev->bss_lock);
7058 wdev_unlock(wdev);
2a519311 7059
97990a06
JB		 7060 cb->args[2] = idx;
7061 nl80211_finish_wdev_dump(rdev);
2a519311 7062
67748893 7063 return skb->len;
2a519311
JB		 7064}
7065
15e47304 7066static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7067 int flags, struct net_device *dev,
7068 bool allow_radio_stats,
7069 struct survey_info *survey)
61fa713c
HS		 7070{
7071 void *hdr;
7072 struct nlattr *infoattr;
7073
11f78ac3
JB		 7074 /* skip radio stats if userspace didn't request them */
7075 if (!survey->channel && !allow_radio_stats)
7076 return 0;
7077
15e47304 7078 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7079 NL80211_CMD_NEW_SURVEY_RESULTS);
7080 if (!hdr)
7081 return -ENOMEM;
7082
9360ffd1
DM		 7083 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7084 goto nla_put_failure;
61fa713c
HS		 7085
7086 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7087 if (!infoattr)
7088 goto nla_put_failure;
7089
11f78ac3
JB		 7090 if (survey->channel &&
7091 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7092 survey->channel->center_freq))
7093 goto nla_put_failure;
7094
7095 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7096 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7097 goto nla_put_failure;
7098 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7099 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7100 goto nla_put_failure;
4ed20beb 7101 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7102 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7103 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7104 goto nla_put_failure;
4ed20beb 7105 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7106 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7107 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7108 goto nla_put_failure;
4ed20beb 7109 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7110 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7111 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7112 goto nla_put_failure;
4ed20beb 7113 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7114 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7115 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7116 goto nla_put_failure;
4ed20beb 7117 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7118 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7119 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7120 goto nla_put_failure;
052536ab 7121 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7122 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7123 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7124 goto nla_put_failure;
61fa713c
HS		 7125
7126 nla_nest_end(msg, infoattr);
7127
053c095a
JB		 7128 genlmsg_end(msg, hdr);
7129 return 0;
61fa713c
HS		 7130
7131 nla_put_failure:
7132 genlmsg_cancel(msg, hdr);
7133 return -EMSGSIZE;
7134}
7135
11f78ac3 7136static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7137{
7138 struct survey_info survey;
1b8ec87a 7139 struct cfg80211_registered_device *rdev;
97990a06
JB		 7140 struct wireless_dev *wdev;
7141 int survey_idx = cb->args[2];
61fa713c 7142 int res;
11f78ac3 7143 bool radio_stats;
61fa713c 7144
1b8ec87a 7145 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7146 if (res)
7147 return res;
61fa713c 7148
11f78ac3
JB		 7149 /* prepare_wdev_dump parsed the attributes */
7150 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7151
97990a06
JB		 7152 if (!wdev->netdev) {
7153 res = -EINVAL;
7154 goto out_err;
7155 }
7156
1b8ec87a 7157 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7158 res = -EOPNOTSUPP;
7159 goto out_err;
7160 }
7161
7162 while (1) {
1b8ec87a 7163 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7164 if (res == -ENOENT)
7165 break;
7166 if (res)
7167 goto out_err;
7168
11f78ac3
JB		 7169 /* don't send disabled channels, but do send non-channel data */
7170 if (survey.channel &&
7171 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7172 survey_idx++;
7173 continue;
7174 }
7175
61fa713c 7176 if (nl80211_send_survey(skb,
15e47304 7177 NETLINK_CB(cb->skb).portid,
61fa713c 7178 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7179 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7180 goto out;
7181 survey_idx++;
7182 }
7183
7184 out:
97990a06 7185 cb->args[2] = survey_idx;
61fa713c
HS		 7186 res = skb->len;
7187 out_err:
1b8ec87a 7188 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7189 return res;
7190}
7191
b23aa676
SO		 7192static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7193{
7194 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7195 NL80211_WPA_VERSION_2));
7196}
7197
636a5d36
JM		 7198static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7199{
4c476991
JB		 7200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7201 struct net_device *dev = info->user_ptr[1];
19957bb3 7202 struct ieee80211_channel *chan;
e39e5b5e
JM		 7203 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7204 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7205 enum nl80211_auth_type auth_type;
fffd0934 7206 struct key_parse key;
d5cdfacb 7207 bool local_state_change;
636a5d36 7208
f4a11bb0
JB		 7209 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7210 return -EINVAL;
7211
7212 if (!info->attrs[NL80211_ATTR_MAC])
7213 return -EINVAL;
7214
1778092e
JM		 7215 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7216 return -EINVAL;
7217
19957bb3
JB		 7218 if (!info->attrs[NL80211_ATTR_SSID])
7219 return -EINVAL;
7220
7221 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7222 return -EINVAL;
7223
fffd0934
JB		 7224 err = nl80211_parse_key(info, &key);
7225 if (err)
7226 return err;
7227
7228 if (key.idx >= 0) {
e31b8213
JB		 7229 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7230 return -EINVAL;
fffd0934
JB		 7231 if (!key.p.key || !key.p.key_len)
7232 return -EINVAL;
7233 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7234 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7235 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7236 key.p.key_len != WLAN_KEY_LEN_WEP104))
7237 return -EINVAL;
7238 if (key.idx > 4)
7239 return -EINVAL;
7240 } else {
7241 key.p.key_len = 0;
7242 key.p.key = NULL;
7243 }
7244
afea0b7a
JB		 7245 if (key.idx >= 0) {
7246 int i;
7247 bool ok = false;
7248 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7249 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7250 ok = true;
7251 break;
7252 }
7253 }
4c476991
JB		 7254 if (!ok)
7255 return -EINVAL;
afea0b7a
JB		 7256 }
7257
4c476991
JB		 7258 if (!rdev->ops->auth)
7259 return -EOPNOTSUPP;
636a5d36 7260
074ac8df 7261 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7262 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7263 return -EOPNOTSUPP;
eec60b03 7264
19957bb3 7265 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7266 chan = nl80211_get_valid_chan(&rdev->wiphy,
7267 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7268 if (!chan)
4c476991 7269 return -EINVAL;
636a5d36 7270
19957bb3
JB		 7271 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7272 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7273
7274 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7275 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7276 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7277 }
7278
19957bb3 7279 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7280 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7281 return -EINVAL;
636a5d36 7282
e39e5b5e
JM		 7283 if (auth_type == NL80211_AUTHTYPE_SAE &&
7284 !info->attrs[NL80211_ATTR_SAE_DATA])
7285 return -EINVAL;
7286
7287 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7288 if (auth_type != NL80211_AUTHTYPE_SAE)
7289 return -EINVAL;
7290 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7291 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7292 /* need to include at least Auth Transaction and Status Code */
7293 if (sae_data_len < 4)
7294 return -EINVAL;
7295 }
7296
d5cdfacb
JM		 7297 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7298
95de817b
JB		 7299 /*
7300 * Since we no longer track auth state, ignore
7301 * requests to only change local state.
7302 */
7303 if (local_state_change)
7304 return 0;
7305
91bf9b26
JB		 7306 wdev_lock(dev->ieee80211_ptr);
7307 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7308 ssid, ssid_len, ie, ie_len,
7309 key.p.key, key.p.key_len, key.idx,
7310 sae_data, sae_data_len);
7311 wdev_unlock(dev->ieee80211_ptr);
7312 return err;
636a5d36
JM		 7313}
7314
c0692b8f
JB		 7315static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7316 struct genl_info *info,
3dc27d25
JB		 7317 struct cfg80211_crypto_settings *settings,
7318 int cipher_limit)
b23aa676 7319{
c0b2bbd8
JB		 7320 memset(settings, 0, sizeof(*settings));
7321
b23aa676
SO		 7322 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7323
c0692b8f
JB		 7324 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7325 u16 proto;
7326 proto = nla_get_u16(
7327 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7328 settings->control_port_ethertype = cpu_to_be16(proto);
7329 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7330 proto != ETH_P_PAE)
7331 return -EINVAL;
7332 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7333 settings->control_port_no_encrypt = true;
7334 } else
7335 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7336
b23aa676
SO		 7337 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7338 void *data;
7339 int len, i;
7340
7341 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7342 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7343 settings->n_ciphers_pairwise = len / sizeof(u32);
7344
7345 if (len % sizeof(u32))
7346 return -EINVAL;
7347
3dc27d25 7348 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7349 return -EINVAL;
7350
7351 memcpy(settings->ciphers_pairwise, data, len);
7352
7353 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7354 if (!cfg80211_supported_cipher_suite(
7355 &rdev->wiphy,
b23aa676
SO		 7356 settings->ciphers_pairwise[i]))
7357 return -EINVAL;
7358 }
7359
7360 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7361 settings->cipher_group =
7362 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7363 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7364 settings->cipher_group))
b23aa676
SO		 7365 return -EINVAL;
7366 }
7367
7368 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7369 settings->wpa_versions =
7370 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7371 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7372 return -EINVAL;
7373 }
7374
7375 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7376 void *data;
6d30240e 7377 int len;
b23aa676
SO		 7378
7379 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7380 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7381 settings->n_akm_suites = len / sizeof(u32);
7382
7383 if (len % sizeof(u32))
7384 return -EINVAL;
7385
1b9ca027
JM		 7386 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7387 return -EINVAL;
7388
b23aa676 7389 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7390 }
7391
7392 return 0;
7393}
7394
636a5d36
JM		 7395static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7396{
4c476991
JB		 7397 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7398 struct net_device *dev = info->user_ptr[1];
f444de05 7399 struct ieee80211_channel *chan;
f62fab73
JB		 7400 struct cfg80211_assoc_request req = {};
7401 const u8 *bssid, *ssid;
7402 int err, ssid_len = 0;
636a5d36 7403
f4a11bb0
JB		 7404 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7405 return -EINVAL;
7406
7407 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7408 !info->attrs[NL80211_ATTR_SSID] ||
7409 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7410 return -EINVAL;
7411
4c476991
JB		 7412 if (!rdev->ops->assoc)
7413 return -EOPNOTSUPP;
636a5d36 7414
074ac8df 7415 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7416 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7417 return -EOPNOTSUPP;
eec60b03 7418
19957bb3 7419 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7420
664834de
JM		 7421 chan = nl80211_get_valid_chan(&rdev->wiphy,
7422 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7423 if (!chan)
4c476991 7424 return -EINVAL;
636a5d36 7425
19957bb3
JB		 7426 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7427 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7428
7429 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7430 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7431 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7432 }
7433
dc6382ce 7434 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7435 enum nl80211_mfp mfp =
dc6382ce 7436 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7437 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7438 req.use_mfp = true;
4c476991
JB		 7439 else if (mfp != NL80211_MFP_NO)
7440 return -EINVAL;
dc6382ce
JM		 7441 }
7442
3e5d7649 7443 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7444 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7445
7e7c8926 7446 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7447 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7448
7449 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7450 memcpy(&req.ht_capa_mask,
7451 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7452 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7453
7454 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7455 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7456 return -EINVAL;
f62fab73
JB		 7457 memcpy(&req.ht_capa,
7458 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7459 sizeof(req.ht_capa));
7e7c8926
BG		 7460 }
7461
ee2aca34 7462 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7463 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7464
7465 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7466 memcpy(&req.vht_capa_mask,
7467 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7468 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7469
7470 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7471 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7472 return -EINVAL;
f62fab73
JB		 7473 memcpy(&req.vht_capa,
7474 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7475 sizeof(req.vht_capa));
ee2aca34
JB		 7476 }
7477
bab5ab7d 7478 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7479 if (!((rdev->wiphy.features &
7480 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7481 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7482 !wiphy_ext_feature_isset(&rdev->wiphy,
7483 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7484 return -EINVAL;
7485 req.flags |= ASSOC_REQ_USE_RRM;
7486 }
7487
f62fab73 7488 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7489 if (!err) {
7490 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7491 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7492 ssid, ssid_len, &req);
91bf9b26
JB		 7493 wdev_unlock(dev->ieee80211_ptr);
7494 }
636a5d36 7495
636a5d36
JM		 7496 return err;
7497}
7498
7499static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7500{
4c476991
JB		 7501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7502 struct net_device *dev = info->user_ptr[1];
19957bb3 7503 const u8 *ie = NULL, *bssid;
91bf9b26 7504 int ie_len = 0, err;
19957bb3 7505 u16 reason_code;
d5cdfacb 7506 bool local_state_change;
636a5d36 7507
f4a11bb0
JB		 7508 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7509 return -EINVAL;
7510
7511 if (!info->attrs[NL80211_ATTR_MAC])
7512 return -EINVAL;
7513
7514 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7515 return -EINVAL;
7516
4c476991
JB		 7517 if (!rdev->ops->deauth)
7518 return -EOPNOTSUPP;
636a5d36 7519
074ac8df 7520 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7521 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7522 return -EOPNOTSUPP;
eec60b03 7523
19957bb3 7524 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7525
19957bb3
JB		 7526 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7527 if (reason_code == 0) {
f4a11bb0 7528 /* Reason Code 0 is reserved */
4c476991 7529 return -EINVAL;
255e737e 7530 }
636a5d36
JM		 7531
7532 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7533 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7534 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7535 }
7536
d5cdfacb
JM		 7537 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7538
91bf9b26
JB		 7539 wdev_lock(dev->ieee80211_ptr);
7540 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7541 local_state_change);
7542 wdev_unlock(dev->ieee80211_ptr);
7543 return err;
636a5d36
JM		 7544}
7545
7546static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7547{
4c476991
JB		 7548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7549 struct net_device *dev = info->user_ptr[1];
19957bb3 7550 const u8 *ie = NULL, *bssid;
91bf9b26 7551 int ie_len = 0, err;
19957bb3 7552 u16 reason_code;
d5cdfacb 7553 bool local_state_change;
636a5d36 7554
f4a11bb0
JB		 7555 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7556 return -EINVAL;
7557
7558 if (!info->attrs[NL80211_ATTR_MAC])
7559 return -EINVAL;
7560
7561 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7562 return -EINVAL;
7563
4c476991
JB		 7564 if (!rdev->ops->disassoc)
7565 return -EOPNOTSUPP;
636a5d36 7566
074ac8df 7567 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7568 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7569 return -EOPNOTSUPP;
eec60b03 7570
19957bb3 7571 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7572
19957bb3
JB		 7573 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7574 if (reason_code == 0) {
f4a11bb0 7575 /* Reason Code 0 is reserved */
4c476991 7576 return -EINVAL;
255e737e 7577 }
636a5d36
JM		 7578
7579 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7580 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7581 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7582 }
7583
d5cdfacb
JM		 7584 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7585
91bf9b26
JB		 7586 wdev_lock(dev->ieee80211_ptr);
7587 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7588 local_state_change);
7589 wdev_unlock(dev->ieee80211_ptr);
7590 return err;
636a5d36
JM		 7591}
7592
dd5b4cc7
FF		 7593static bool
7594nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 7595 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 7596 int rateval)
7597{
7598 struct wiphy *wiphy = &rdev->wiphy;
7599 bool found = false;
7600 int band, i;
7601
57fbcce3 7602 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 7603 struct ieee80211_supported_band *sband;
7604
7605 sband = wiphy->bands[band];
7606 if (!sband)
7607 continue;
7608
7609 for (i = 0; i < sband->n_bitrates; i++) {
7610 if (sband->bitrates[i].bitrate == rateval) {
7611 mcast_rate[band] = i + 1;
7612 found = true;
7613 break;
7614 }
7615 }
7616 }
7617
7618 return found;
7619}
7620
04a773ad
JB		 7621static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7622{
4c476991
JB		 7623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7624 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7625 struct cfg80211_ibss_params ibss;
7626 struct wiphy *wiphy;
fffd0934 7627 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7628 int err;
7629
8e30bc55
JB		 7630 memset(&ibss, 0, sizeof(ibss));
7631
04a773ad
JB		 7632 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7633 return -EINVAL;
7634
683b6d3b 7635 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7636 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7637 return -EINVAL;
7638
8e30bc55
JB		 7639 ibss.beacon_interval = 100;
7640
7641 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7642 ibss.beacon_interval =
7643 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7644 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7645 return -EINVAL;
7646 }
7647
4c476991
JB		 7648 if (!rdev->ops->join_ibss)
7649 return -EOPNOTSUPP;
04a773ad 7650
4c476991
JB		 7651 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7652 return -EOPNOTSUPP;
04a773ad 7653
79c97e97 7654 wiphy = &rdev->wiphy;
04a773ad 7655
39193498 7656 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7657 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7658
7659 if (!is_valid_ether_addr(ibss.bssid))
7660 return -EINVAL;
7661 }
04a773ad
JB		 7662 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7663 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7664
7665 if (info->attrs[NL80211_ATTR_IE]) {
7666 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7667 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7668 }
7669
683b6d3b
JB		 7670 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7671 if (err)
7672 return err;
04a773ad 7673
174e0cd2
IP		 7674 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7675 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7676 return -EINVAL;
7677
2f301ab2 7678 switch (ibss.chandef.width) {
bf372645
SW		 7679 case NL80211_CHAN_WIDTH_5:
7680 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7681 case NL80211_CHAN_WIDTH_20_NOHT:
7682 break;
7683 case NL80211_CHAN_WIDTH_20:
7684 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7685 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7686 return -EINVAL;
7687 break;
7688 case NL80211_CHAN_WIDTH_80:
7689 case NL80211_CHAN_WIDTH_80P80:
7690 case NL80211_CHAN_WIDTH_160:
7691 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7692 return -EINVAL;
7693 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7694 NL80211_EXT_FEATURE_VHT_IBSS))
7695 return -EINVAL;
7696 break;
2f301ab2 7697 default:
c04d6150 7698 return -EINVAL;
2f301ab2 7699 }
db9c64cf 7700
04a773ad 7701 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7702 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7703
fbd2c8dc
TP		 7704 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7705 u8 *rates =
7706 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7707 int n_rates =
7708 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7709 struct ieee80211_supported_band *sband =
683b6d3b 7710 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7711
34850ab2
JB		 7712 err = ieee80211_get_ratemask(sband, rates, n_rates,
7713 &ibss.basic_rates);
7714 if (err)
7715 return err;
fbd2c8dc 7716 }
dd5b4cc7 7717
803768f5
SW		 7718 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7719 memcpy(&ibss.ht_capa_mask,
7720 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7721 sizeof(ibss.ht_capa_mask));
7722
7723 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7724 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7725 return -EINVAL;
7726 memcpy(&ibss.ht_capa,
7727 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7728 sizeof(ibss.ht_capa));
7729 }
7730
dd5b4cc7
FF		 7731 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7732 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7733 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7734 return -EINVAL;
fbd2c8dc 7735
4c476991 7736 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7737 bool no_ht = false;
7738
4c476991 7739 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7740 info->attrs[NL80211_ATTR_KEYS],
7741 &no_ht);
4c476991
JB		 7742 if (IS_ERR(connkeys))
7743 return PTR_ERR(connkeys);
de7044ee 7744
3d9d1d66
JB		 7745 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7746 no_ht) {
5e950a78 7747 kzfree(connkeys);
de7044ee
SM		 7748 return -EINVAL;
7749 }
4c476991 7750 }
04a773ad 7751
267335d6
AQ		 7752 ibss.control_port =
7753 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7754
5336fa88
SW		 7755 ibss.userspace_handles_dfs =
7756 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7757
4c476991 7758 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7759 if (err)
b47f610b 7760 kzfree(connkeys);
04a773ad
JB		 7761 return err;
7762}
7763
7764static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7765{
4c476991
JB		 7766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7767 struct net_device *dev = info->user_ptr[1];
04a773ad 7768
4c476991
JB		 7769 if (!rdev->ops->leave_ibss)
7770 return -EOPNOTSUPP;
04a773ad 7771
4c476991
JB		 7772 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7773 return -EOPNOTSUPP;
04a773ad 7774
4c476991 7775 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7776}
7777
f4e583c8
AQ		 7778static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7779{
7780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7781 struct net_device *dev = info->user_ptr[1];
57fbcce3 7782 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 7783 u32 nla_rate;
7784 int err;
7785
7786 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7787 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7788 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7789 return -EOPNOTSUPP;
7790
7791 if (!rdev->ops->set_mcast_rate)
7792 return -EOPNOTSUPP;
7793
7794 memset(mcast_rate, 0, sizeof(mcast_rate));
7795
7796 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7797 return -EINVAL;
7798
7799 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7800 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7801 return -EINVAL;
7802
a1056b1b 7803 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7804
7805 return err;
7806}
7807
ad7e718c
JB		 7808static struct sk_buff *
7809__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7810 struct wireless_dev *wdev, int approxlen,
7811 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7812 enum nl80211_attrs attr,
7813 const struct nl80211_vendor_cmd_info *info,
7814 gfp_t gfp)
ad7e718c
JB		 7815{
7816 struct sk_buff *skb;
7817 void *hdr;
7818 struct nlattr *data;
7819
7820 skb = nlmsg_new(approxlen + 100, gfp);
7821 if (!skb)
7822 return NULL;
7823
7824 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7825 if (!hdr) {
7826 kfree_skb(skb);
7827 return NULL;
7828 }
7829
7830 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7831 goto nla_put_failure;
567ffc35
JB		 7832
7833 if (info) {
7834 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7835 info->vendor_id))
7836 goto nla_put_failure;
7837 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7838 info->subcmd))
7839 goto nla_put_failure;
7840 }
7841
6c09e791 7842 if (wdev) {
2dad624e
ND		 7843 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
7844 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 7845 goto nla_put_failure;
7846 if (wdev->netdev &&
7847 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7848 wdev->netdev->ifindex))
7849 goto nla_put_failure;
7850 }
7851
ad7e718c
JB		 7852 data = nla_nest_start(skb, attr);
7853
7854 ((void **)skb->cb)[0] = rdev;
7855 ((void **)skb->cb)[1] = hdr;
7856 ((void **)skb->cb)[2] = data;
7857
7858 return skb;
7859
7860 nla_put_failure:
7861 kfree_skb(skb);
7862 return NULL;
7863}
f4e583c8 7864
e03ad6ea 7865struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7866 struct wireless_dev *wdev,
e03ad6ea
JB		 7867 enum nl80211_commands cmd,
7868 enum nl80211_attrs attr,
7869 int vendor_event_idx,
7870 int approxlen, gfp_t gfp)
7871{
f26cbf40 7872 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7873 const struct nl80211_vendor_cmd_info *info;
7874
7875 switch (cmd) {
7876 case NL80211_CMD_TESTMODE:
7877 if (WARN_ON(vendor_event_idx != -1))
7878 return NULL;
7879 info = NULL;
7880 break;
7881 case NL80211_CMD_VENDOR:
7882 if (WARN_ON(vendor_event_idx < 0 ||
7883 vendor_event_idx >= wiphy->n_vendor_events))
7884 return NULL;
7885 info = &wiphy->vendor_events[vendor_event_idx];
7886 break;
7887 default:
7888 WARN_ON(1);
7889 return NULL;
7890 }
7891
6c09e791 7892 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7893 cmd, attr, info, gfp);
7894}
7895EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7896
7897void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7898{
7899 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7900 void *hdr = ((void **)skb->cb)[1];
7901 struct nlattr *data = ((void **)skb->cb)[2];
7902 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7903
bd8c78e7
JB		 7904 /* clear CB data for netlink core to own from now on */
7905 memset(skb->cb, 0, sizeof(skb->cb));
7906
e03ad6ea
JB		 7907 nla_nest_end(skb, data);
7908 genlmsg_end(skb, hdr);
7909
7910 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7911 mcgrp = NL80211_MCGRP_VENDOR;
7912
7913 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7914 mcgrp, gfp);
7915}
7916EXPORT_SYMBOL(__cfg80211_send_event_skb);
7917
aff89a9b 7918#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7919static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7920{
4c476991 7921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7922 struct wireless_dev *wdev =
7923 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7924 int err;
7925
fc73f11f
DS		 7926 if (!rdev->ops->testmode_cmd)
7927 return -EOPNOTSUPP;
7928
7929 if (IS_ERR(wdev)) {
7930 err = PTR_ERR(wdev);
7931 if (err != -EINVAL)
7932 return err;
7933 wdev = NULL;
7934 } else if (wdev->wiphy != &rdev->wiphy) {
7935 return -EINVAL;
7936 }
7937
aff89a9b
JB		 7938 if (!info->attrs[NL80211_ATTR_TESTDATA])
7939 return -EINVAL;
7940
ad7e718c 7941 rdev->cur_cmd_info = info;
fc73f11f 7942 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7943 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7944 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7945 rdev->cur_cmd_info = NULL;
aff89a9b 7946
aff89a9b
JB		 7947 return err;
7948}
7949
71063f0e
WYG		 7950static int nl80211_testmode_dump(struct sk_buff *skb,
7951 struct netlink_callback *cb)
7952{
00918d33 7953 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7954 int err;
7955 long phy_idx;
7956 void *data = NULL;
7957 int data_len = 0;
7958
5fe231e8
JB		 7959 rtnl_lock();
7960
71063f0e
WYG		 7961 if (cb->args[0]) {
7962 /*
7963 * 0 is a valid index, but not valid for args[0],
7964 * so we need to offset by 1.
7965 */
7966 phy_idx = cb->args[0] - 1;
7967 } else {
7968 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7969 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7970 nl80211_policy);
7971 if (err)
5fe231e8 7972 goto out_err;
00918d33 7973
2bd7e35d
JB		 7974 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7975 nl80211_fam.attrbuf);
7976 if (IS_ERR(rdev)) {
5fe231e8
JB		 7977 err = PTR_ERR(rdev);
7978 goto out_err;
00918d33 7979 }
2bd7e35d
JB		 7980 phy_idx = rdev->wiphy_idx;
7981 rdev = NULL;
2bd7e35d 7982
71063f0e
WYG		 7983 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7984 cb->args[1] =
7985 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7986 }
7987
7988 if (cb->args[1]) {
7989 data = nla_data((void *)cb->args[1]);
7990 data_len = nla_len((void *)cb->args[1]);
7991 }
7992
00918d33
JB		 7993 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7994 if (!rdev) {
5fe231e8
JB		 7995 err = -ENOENT;
7996 goto out_err;
71063f0e 7997 }
71063f0e 7998
00918d33 7999 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8000 err = -EOPNOTSUPP;
8001 goto out_err;
8002 }
8003
8004 while (1) {
15e47304 8005 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8006 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8007 NL80211_CMD_TESTMODE);
8008 struct nlattr *tmdata;
8009
cb35fba3
DC		 8010 if (!hdr)
8011 break;
8012
9360ffd1 8013 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8014 genlmsg_cancel(skb, hdr);
8015 break;
8016 }
8017
8018 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8019 if (!tmdata) {
8020 genlmsg_cancel(skb, hdr);
8021 break;
8022 }
e35e4d28 8023 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8024 nla_nest_end(skb, tmdata);
8025
8026 if (err == -ENOBUFS || err == -ENOENT) {
8027 genlmsg_cancel(skb, hdr);
8028 break;
8029 } else if (err) {
8030 genlmsg_cancel(skb, hdr);
8031 goto out_err;
8032 }
8033
8034 genlmsg_end(skb, hdr);
8035 }
8036
8037 err = skb->len;
8038 /* see above */
8039 cb->args[0] = phy_idx + 1;
8040 out_err:
5fe231e8 8041 rtnl_unlock();
71063f0e
WYG		 8042 return err;
8043}
aff89a9b
JB		 8044#endif
8045
b23aa676
SO		 8046static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8047{
4c476991
JB		 8048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8049 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8050 struct cfg80211_connect_params connect;
8051 struct wiphy *wiphy;
fffd0934 8052 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8053 int err;
8054
8055 memset(&connect, 0, sizeof(connect));
8056
8057 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8058 return -EINVAL;
8059
8060 if (!info->attrs[NL80211_ATTR_SSID] ||
8061 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8062 return -EINVAL;
8063
8064 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8065 connect.auth_type =
8066 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8067 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8068 NL80211_CMD_CONNECT))
b23aa676
SO		 8069 return -EINVAL;
8070 } else
8071 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8072
8073 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8074
c0692b8f 8075 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8076 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8077 if (err)
8078 return err;
b23aa676 8079
074ac8df 8080 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8081 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8082 return -EOPNOTSUPP;
b23aa676 8083
79c97e97 8084 wiphy = &rdev->wiphy;
b23aa676 8085
4486ea98
BS		 8086 connect.bg_scan_period = -1;
8087 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8088 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8089 connect.bg_scan_period =
8090 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8091 }
8092
b23aa676
SO		 8093 if (info->attrs[NL80211_ATTR_MAC])
8094 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8095 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8096 connect.bssid_hint =
8097 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8098 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8099 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8100
8101 if (info->attrs[NL80211_ATTR_IE]) {
8102 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8103 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8104 }
8105
cee00a95
JM		 8106 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8107 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8108 if (connect.mfp != NL80211_MFP_REQUIRED &&
8109 connect.mfp != NL80211_MFP_NO)
8110 return -EINVAL;
8111 } else {
8112 connect.mfp = NL80211_MFP_NO;
8113 }
8114
ba6fbacf
JM		 8115 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8116 connect.prev_bssid =
8117 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8118
b23aa676 8119 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8120 connect.channel = nl80211_get_valid_chan(
8121 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8122 if (!connect.channel)
1df4a510
JM		 8123 return -EINVAL;
8124 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8125 connect.channel_hint = nl80211_get_valid_chan(
8126 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8127 if (!connect.channel_hint)
4c476991 8128 return -EINVAL;
b23aa676
SO		 8129 }
8130
fffd0934
JB		 8131 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8132 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8133 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8134 if (IS_ERR(connkeys))
8135 return PTR_ERR(connkeys);
fffd0934
JB		 8136 }
8137
7e7c8926
BG		 8138 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8139 connect.flags |= ASSOC_REQ_DISABLE_HT;
8140
8141 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8142 memcpy(&connect.ht_capa_mask,
8143 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8144 sizeof(connect.ht_capa_mask));
8145
8146 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8147 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8148 kzfree(connkeys);
7e7c8926 8149 return -EINVAL;
b4e4f47e 8150 }
7e7c8926
BG		 8151 memcpy(&connect.ht_capa,
8152 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8153 sizeof(connect.ht_capa));
8154 }
8155
ee2aca34
JB		 8156 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8157 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8158
8159 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8160 memcpy(&connect.vht_capa_mask,
8161 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8162 sizeof(connect.vht_capa_mask));
8163
8164 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8165 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8166 kzfree(connkeys);
ee2aca34
JB		 8167 return -EINVAL;
8168 }
8169 memcpy(&connect.vht_capa,
8170 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8171 sizeof(connect.vht_capa));
8172 }
8173
bab5ab7d 8174 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8175 if (!((rdev->wiphy.features &
8176 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8177 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8178 !wiphy_ext_feature_isset(&rdev->wiphy,
8179 NL80211_EXT_FEATURE_RRM)) {
707554b4 8180 kzfree(connkeys);
bab5ab7d 8181 return -EINVAL;
707554b4 8182 }
bab5ab7d
AK		 8183 connect.flags |= ASSOC_REQ_USE_RRM;
8184 }
8185
34d50519 8186 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8187 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8188 kzfree(connkeys);
8189 return -EOPNOTSUPP;
8190 }
8191
38de03d2
AS		 8192 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8193 /* bss selection makes no sense if bssid is set */
8194 if (connect.bssid) {
8195 kzfree(connkeys);
8196 return -EINVAL;
8197 }
8198
8199 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8200 wiphy, &connect.bss_select);
8201 if (err) {
8202 kzfree(connkeys);
8203 return err;
8204 }
8205 }
8206
83739b03 8207 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8208 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8209 connect.prev_bssid);
83739b03 8210 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8211 if (err)
b47f610b 8212 kzfree(connkeys);
b23aa676
SO		 8213 return err;
8214}
8215
8216static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8217{
4c476991
JB		 8218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8219 struct net_device *dev = info->user_ptr[1];
b23aa676 8220 u16 reason;
83739b03 8221 int ret;
b23aa676
SO		 8222
8223 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8224 reason = WLAN_REASON_DEAUTH_LEAVING;
8225 else
8226 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8227
8228 if (reason == 0)
8229 return -EINVAL;
8230
074ac8df 8231 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8232 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8233 return -EOPNOTSUPP;
b23aa676 8234
83739b03
JB		 8235 wdev_lock(dev->ieee80211_ptr);
8236 ret = cfg80211_disconnect(rdev, dev, reason, true);
8237 wdev_unlock(dev->ieee80211_ptr);
8238 return ret;
b23aa676
SO		 8239}
8240
463d0183
JB		 8241static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8242{
4c476991 8243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8244 struct net *net;
8245 int err;
463d0183 8246
4b681c82
VK		 8247 if (info->attrs[NL80211_ATTR_PID]) {
8248 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8249
8250 net = get_net_ns_by_pid(pid);
8251 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8252 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8253
4b681c82
VK		 8254 net = get_net_ns_by_fd(fd);
8255 } else {
8256 return -EINVAL;
8257 }
463d0183 8258
4c476991
JB		 8259 if (IS_ERR(net))
8260 return PTR_ERR(net);
463d0183
JB		 8261
8262 err = 0;
8263
8264 /* check if anything to do */
4c476991
JB		 8265 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8266 err = cfg80211_switch_netns(rdev, net);
463d0183 8267
463d0183 8268 put_net(net);
463d0183
JB		 8269 return err;
8270}
8271
67fbb16b
SO		 8272static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8273{
4c476991 8274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8275 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8276 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8277 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8278 struct cfg80211_pmksa pmksa;
8279
8280 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8281
8282 if (!info->attrs[NL80211_ATTR_MAC])
8283 return -EINVAL;
8284
8285 if (!info->attrs[NL80211_ATTR_PMKID])
8286 return -EINVAL;
8287
67fbb16b
SO		 8288 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8289 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8290
074ac8df 8291 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8292 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8293 return -EOPNOTSUPP;
67fbb16b
SO		 8294
8295 switch (info->genlhdr->cmd) {
8296 case NL80211_CMD_SET_PMKSA:
8297 rdev_ops = rdev->ops->set_pmksa;
8298 break;
8299 case NL80211_CMD_DEL_PMKSA:
8300 rdev_ops = rdev->ops->del_pmksa;
8301 break;
8302 default:
8303 WARN_ON(1);
8304 break;
8305 }
8306
4c476991
JB		 8307 if (!rdev_ops)
8308 return -EOPNOTSUPP;
67fbb16b 8309
4c476991 8310 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8311}
8312
8313static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8314{
4c476991
JB		 8315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8316 struct net_device *dev = info->user_ptr[1];
67fbb16b 8317
074ac8df 8318 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8319 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8320 return -EOPNOTSUPP;
67fbb16b 8321
4c476991
JB		 8322 if (!rdev->ops->flush_pmksa)
8323 return -EOPNOTSUPP;
67fbb16b 8324
e35e4d28 8325 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8326}
8327
109086ce
AN		 8328static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8329{
8330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8331 struct net_device *dev = info->user_ptr[1];
8332 u8 action_code, dialog_token;
df942e7b 8333 u32 peer_capability = 0;
109086ce
AN		 8334 u16 status_code;
8335 u8 *peer;
31fa97c5 8336 bool initiator;
109086ce
AN		 8337
8338 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8339 !rdev->ops->tdls_mgmt)
8340 return -EOPNOTSUPP;
8341
8342 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8343 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8344 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8345 !info->attrs[NL80211_ATTR_IE] ||
8346 !info->attrs[NL80211_ATTR_MAC])
8347 return -EINVAL;
8348
8349 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8350 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8351 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8352 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8353 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8354 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8355 peer_capability =
8356 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8357
e35e4d28 8358 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8359 dialog_token, status_code, peer_capability,
31fa97c5 8360 initiator,
e35e4d28
HG		 8361 nla_data(info->attrs[NL80211_ATTR_IE]),
8362 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8363}
8364
8365static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8366{
8367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8368 struct net_device *dev = info->user_ptr[1];
8369 enum nl80211_tdls_operation operation;
8370 u8 *peer;
8371
8372 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8373 !rdev->ops->tdls_oper)
8374 return -EOPNOTSUPP;
8375
8376 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8377 !info->attrs[NL80211_ATTR_MAC])
8378 return -EINVAL;
8379
8380 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8381 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8382
e35e4d28 8383 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8384}
8385
9588bbd5
JM		 8386static int nl80211_remain_on_channel(struct sk_buff *skb,
8387 struct genl_info *info)
8388{
4c476991 8389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8390 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8391 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8392 struct sk_buff *msg;
8393 void *hdr;
8394 u64 cookie;
683b6d3b 8395 u32 duration;
9588bbd5
JM		 8396 int err;
8397
8398 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8399 !info->attrs[NL80211_ATTR_DURATION])
8400 return -EINVAL;
8401
8402 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8403
ebf348fc
JB		 8404 if (!rdev->ops->remain_on_channel ||
8405 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8406 return -EOPNOTSUPP;
8407
9588bbd5 8408 /*
ebf348fc
JB		 8409 * We should be on that channel for at least a minimum amount of
8410 * time (10ms) but no longer than the driver supports.
9588bbd5 8411 */
ebf348fc 8412 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8413 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8414 return -EINVAL;
8415
683b6d3b
JB		 8416 err = nl80211_parse_chandef(rdev, info, &chandef);
8417 if (err)
8418 return err;
9588bbd5
JM		 8419
8420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8421 if (!msg)
8422 return -ENOMEM;
9588bbd5 8423
15e47304 8424 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8425 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8426 if (!hdr) {
8427 err = -ENOBUFS;
9588bbd5
JM		 8428 goto free_msg;
8429 }
8430
683b6d3b
JB		 8431 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8432 duration, &cookie);
9588bbd5
JM		 8433
8434 if (err)
8435 goto free_msg;
8436
2dad624e
ND		 8437 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8438 NL80211_ATTR_PAD))
9360ffd1 8439 goto nla_put_failure;
9588bbd5
JM		 8440
8441 genlmsg_end(msg, hdr);
4c476991
JB		 8442
8443 return genlmsg_reply(msg, info);
9588bbd5
JM		 8444
8445 nla_put_failure:
8446 err = -ENOBUFS;
8447 free_msg:
8448 nlmsg_free(msg);
9588bbd5
JM		 8449 return err;
8450}
8451
8452static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8453 struct genl_info *info)
8454{
4c476991 8455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8456 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8457 u64 cookie;
9588bbd5
JM		 8458
8459 if (!info->attrs[NL80211_ATTR_COOKIE])
8460 return -EINVAL;
8461
4c476991
JB		 8462 if (!rdev->ops->cancel_remain_on_channel)
8463 return -EOPNOTSUPP;
9588bbd5 8464
9588bbd5
JM		 8465 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8466
e35e4d28 8467 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8468}
8469
13ae75b1
JM		 8470static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8471 u8 *rates, u8 rates_len)
8472{
8473 u8 i;
8474 u32 mask = 0;
8475
8476 for (i = 0; i < rates_len; i++) {
8477 int rate = (rates[i] & 0x7f) * 5;
8478 int ridx;
8479 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8480 struct ieee80211_rate *srate =
8481 &sband->bitrates[ridx];
8482 if (rate == srate->bitrate) {
8483 mask |= 1 << ridx;
8484 break;
8485 }
8486 }
8487 if (ridx == sband->n_bitrates)
8488 return 0; /* rate not found */
8489 }
8490
8491 return mask;
8492}
8493
24db78c0
SW		 8494static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8495 u8 *rates, u8 rates_len,
8496 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8497{
8498 u8 i;
8499
8500 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8501
8502 for (i = 0; i < rates_len; i++) {
8503 int ridx, rbit;
8504
8505 ridx = rates[i] / 8;
8506 rbit = BIT(rates[i] % 8);
8507
8508 /* check validity */
910570b5 8509 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8510 return false;
8511
8512 /* check availability */
8513 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8514 mcs[ridx] |= rbit;
8515 else
8516 return false;
8517 }
8518
8519 return true;
8520}
8521
204e35a9
JD		 8522static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8523{
8524 u16 mcs_mask = 0;
8525
8526 switch (vht_mcs_map) {
8527 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8528 break;
8529 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8530 mcs_mask = 0x00FF;
8531 break;
8532 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8533 mcs_mask = 0x01FF;
8534 break;
8535 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8536 mcs_mask = 0x03FF;
8537 break;
8538 default:
8539 break;
8540 }
8541
8542 return mcs_mask;
8543}
8544
8545static void vht_build_mcs_mask(u16 vht_mcs_map,
8546 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8547{
8548 u8 nss;
8549
8550 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8551 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8552 vht_mcs_map >>= 2;
8553 }
8554}
8555
8556static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8557 struct nl80211_txrate_vht *txrate,
8558 u16 mcs[NL80211_VHT_NSS_MAX])
8559{
8560 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8561 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8562 u8 i;
8563
8564 if (!sband->vht_cap.vht_supported)
8565 return false;
8566
8567 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8568
8569 /* Build vht_mcs_mask from VHT capabilities */
8570 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8571
8572 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8573 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8574 mcs[i] = txrate->mcs[i];
8575 else
8576 return false;
8577 }
8578
8579 return true;
8580}
8581
b54452b0 8582static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8583 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8584 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8585 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8586 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8587 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8588 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8589};
8590
8591static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8592 struct genl_info *info)
8593{
8594 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8595 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8596 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8597 int rem, i;
8598 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8599 struct nlattr *tx_rates;
8600 struct ieee80211_supported_band *sband;
204e35a9 8601 u16 vht_tx_mcs_map;
13ae75b1 8602
4c476991
JB		 8603 if (!rdev->ops->set_bitrate_mask)
8604 return -EOPNOTSUPP;
13ae75b1
JM		 8605
8606 memset(&mask, 0, sizeof(mask));
8607 /* Default to all rates enabled */
57fbcce3 8608 for (i = 0; i < NUM_NL80211_BANDS; i++) {
13ae75b1 8609 sband = rdev->wiphy.bands[i];
7869303b
JD		 8610
8611 if (!sband)
8612 continue;
8613
8614 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8615 memcpy(mask.control[i].ht_mcs,
7869303b 8616 sband->ht_cap.mcs.rx_mask,
d1e33e65 8617 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8618
8619 if (!sband->vht_cap.vht_supported)
8620 continue;
8621
8622 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8623 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8624 }
8625
b9243ab0
JD		 8626 /* if no rates are given set it back to the defaults */
8627 if (!info->attrs[NL80211_ATTR_TX_RATES])
8628 goto out;
8629
13ae75b1
JM		 8630 /*
8631 * The nested attribute uses enum nl80211_band as the index. This maps
57fbcce3 8632 * directly to the enum nl80211_band values used in cfg80211.
13ae75b1 8633 */
24db78c0 8634 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8635 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
57fbcce3 8636 enum nl80211_band band = nla_type(tx_rates);
ae811e21
JB		 8637 int err;
8638
57fbcce3 8639 if (band < 0 || band >= NUM_NL80211_BANDS)
4c476991 8640 return -EINVAL;
13ae75b1 8641 sband = rdev->wiphy.bands[band];
4c476991
JB		 8642 if (sband == NULL)
8643 return -EINVAL;
ae811e21
JB		 8644 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8645 nla_len(tx_rates), nl80211_txattr_policy);
8646 if (err)
8647 return err;
13ae75b1
JM		 8648 if (tb[NL80211_TXRATE_LEGACY]) {
8649 mask.control[band].legacy = rateset_to_mask(
8650 sband,
8651 nla_data(tb[NL80211_TXRATE_LEGACY]),
8652 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8653 if ((mask.control[band].legacy == 0) &&
8654 nla_len(tb[NL80211_TXRATE_LEGACY]))
8655 return -EINVAL;
24db78c0 8656 }
d1e33e65 8657 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8658 if (!ht_rateset_to_mask(
8659 sband,
d1e33e65
JD		 8660 nla_data(tb[NL80211_TXRATE_HT]),
8661 nla_len(tb[NL80211_TXRATE_HT]),
8662 mask.control[band].ht_mcs))
24db78c0
SW		 8663 return -EINVAL;
8664 }
204e35a9
JD		 8665 if (tb[NL80211_TXRATE_VHT]) {
8666 if (!vht_set_mcs_mask(
8667 sband,
8668 nla_data(tb[NL80211_TXRATE_VHT]),
8669 mask.control[band].vht_mcs))
8670 return -EINVAL;
8671 }
0b9323f6
JD		 8672 if (tb[NL80211_TXRATE_GI]) {
8673 mask.control[band].gi =
8674 nla_get_u8(tb[NL80211_TXRATE_GI]);
8675 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8676 return -EINVAL;
8677 }
24db78c0
SW		 8678
8679 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8680 /* don't allow empty legacy rates if HT or VHT
8681 * are not even supported.
8682 */
8683 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8684 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8685 return -EINVAL;
8686
8687 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8688 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8689 goto out;
8690
8691 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8692 if (mask.control[band].vht_mcs[i])
8693 goto out;
24db78c0
SW		 8694
8695 /* legacy and mcs rates may not be both empty */
204e35a9 8696 return -EINVAL;
13ae75b1
JM		 8697 }
8698 }
8699
b9243ab0 8700out:
e35e4d28 8701 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8702}
8703
2e161f78 8704static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8705{
4c476991 8706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8707 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8708 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8709
8710 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8711 return -EINVAL;
8712
2e161f78
JB		 8713 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8714 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8715
71bbc994
JB		 8716 switch (wdev->iftype) {
8717 case NL80211_IFTYPE_STATION:
8718 case NL80211_IFTYPE_ADHOC:
8719 case NL80211_IFTYPE_P2P_CLIENT:
8720 case NL80211_IFTYPE_AP:
8721 case NL80211_IFTYPE_AP_VLAN:
8722 case NL80211_IFTYPE_MESH_POINT:
8723 case NL80211_IFTYPE_P2P_GO:
98104fde 8724 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8725 break;
8726 default:
4c476991 8727 return -EOPNOTSUPP;
71bbc994 8728 }
026331c4
JM		 8729
8730 /* not much point in registering if we can't reply */
4c476991
JB		 8731 if (!rdev->ops->mgmt_tx)
8732 return -EOPNOTSUPP;
026331c4 8733
15e47304 8734 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8735 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8736 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8737}
8738
2e161f78 8739static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8740{
4c476991 8741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8742 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8743 struct cfg80211_chan_def chandef;
026331c4 8744 int err;
d64d373f 8745 void *hdr = NULL;
026331c4 8746 u64 cookie;
e247bd90 8747 struct sk_buff *msg = NULL;
b176e629
AO		 8748 struct cfg80211_mgmt_tx_params params = {
8749 .dont_wait_for_ack =
8750 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8751 };
026331c4 8752
683b6d3b 8753 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8754 return -EINVAL;
8755
4c476991
JB		 8756 if (!rdev->ops->mgmt_tx)
8757 return -EOPNOTSUPP;
026331c4 8758
71bbc994 8759 switch (wdev->iftype) {
ea141b75
AQ		 8760 case NL80211_IFTYPE_P2P_DEVICE:
8761 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8762 return -EINVAL;
71bbc994
JB		 8763 case NL80211_IFTYPE_STATION:
8764 case NL80211_IFTYPE_ADHOC:
8765 case NL80211_IFTYPE_P2P_CLIENT:
8766 case NL80211_IFTYPE_AP:
8767 case NL80211_IFTYPE_AP_VLAN:
8768 case NL80211_IFTYPE_MESH_POINT:
8769 case NL80211_IFTYPE_P2P_GO:
8770 break;
8771 default:
4c476991 8772 return -EOPNOTSUPP;
71bbc994 8773 }
026331c4 8774
f7ca38df 8775 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8776 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8777 return -EINVAL;
b176e629 8778 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8779
8780 /*
8781 * We should wait on the channel for at least a minimum amount
8782 * of time (10ms) but no longer than the driver supports.
8783 */
b176e629
AO		 8784 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8785 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8786 return -EINVAL;
8787
f7ca38df
JB		 8788 }
8789
b176e629 8790 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8791
b176e629 8792 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8793 return -EINVAL;
8794
b176e629 8795 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8796
ea141b75
AQ		 8797 /* get the channel if any has been specified, otherwise pass NULL to
8798 * the driver. The latter will use the current one
8799 */
8800 chandef.chan = NULL;
8801 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8802 err = nl80211_parse_chandef(rdev, info, &chandef);
8803 if (err)
8804 return err;
8805 }
8806
b176e629 8807 if (!chandef.chan && params.offchan)
ea141b75 8808 return -EINVAL;
026331c4 8809
34d22ce2
AO		 8810 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8811 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8812
8813 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8814 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8815 int i;
8816
8817 if (len % sizeof(u16))
8818 return -EINVAL;
8819
8820 params.n_csa_offsets = len / sizeof(u16);
8821 params.csa_offsets =
8822 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8823
8824 /* check that all the offsets fit the frame */
8825 for (i = 0; i < params.n_csa_offsets; i++) {
8826 if (params.csa_offsets[i] >= params.len)
8827 return -EINVAL;
8828 }
8829 }
8830
b176e629 8831 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8832 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8833 if (!msg)
8834 return -ENOMEM;
026331c4 8835
15e47304 8836 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8837 NL80211_CMD_FRAME);
cb35fba3
DC		 8838 if (!hdr) {
8839 err = -ENOBUFS;
e247bd90
JB		 8840 goto free_msg;
8841 }
026331c4 8842 }
e247bd90 8843
b176e629
AO		 8844 params.chan = chandef.chan;
8845 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8846 if (err)
8847 goto free_msg;
8848
e247bd90 8849 if (msg) {
2dad624e
ND		 8850 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8851 NL80211_ATTR_PAD))
9360ffd1 8852 goto nla_put_failure;
026331c4 8853
e247bd90
JB		 8854 genlmsg_end(msg, hdr);
8855 return genlmsg_reply(msg, info);
8856 }
8857
8858 return 0;
026331c4
JM		 8859
8860 nla_put_failure:
8861 err = -ENOBUFS;
8862 free_msg:
8863 nlmsg_free(msg);
026331c4
JM		 8864 return err;
8865}
8866
f7ca38df
JB		 8867static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8868{
8869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8870 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8871 u64 cookie;
8872
8873 if (!info->attrs[NL80211_ATTR_COOKIE])
8874 return -EINVAL;
8875
8876 if (!rdev->ops->mgmt_tx_cancel_wait)
8877 return -EOPNOTSUPP;
8878
71bbc994
JB		 8879 switch (wdev->iftype) {
8880 case NL80211_IFTYPE_STATION:
8881 case NL80211_IFTYPE_ADHOC:
8882 case NL80211_IFTYPE_P2P_CLIENT:
8883 case NL80211_IFTYPE_AP:
8884 case NL80211_IFTYPE_AP_VLAN:
8885 case NL80211_IFTYPE_P2P_GO:
98104fde 8886 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8887 break;
8888 default:
f7ca38df 8889 return -EOPNOTSUPP;
71bbc994 8890 }
f7ca38df
JB		 8891
8892 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8893
e35e4d28 8894 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8895}
8896
ffb9eb3d
KV		 8897static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8898{
4c476991 8899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8900 struct wireless_dev *wdev;
4c476991 8901 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8902 u8 ps_state;
8903 bool state;
8904 int err;
8905
4c476991
JB		 8906 if (!info->attrs[NL80211_ATTR_PS_STATE])
8907 return -EINVAL;
ffb9eb3d
KV		 8908
8909 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8910
4c476991
JB		 8911 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8912 return -EINVAL;
ffb9eb3d
KV		 8913
8914 wdev = dev->ieee80211_ptr;
8915
4c476991
JB		 8916 if (!rdev->ops->set_power_mgmt)
8917 return -EOPNOTSUPP;
ffb9eb3d
KV		 8918
8919 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8920
8921 if (state == wdev->ps)
4c476991 8922 return 0;
ffb9eb3d 8923
e35e4d28 8924 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8925 if (!err)
8926 wdev->ps = state;
ffb9eb3d
KV		 8927 return err;
8928}
8929
8930static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8931{
4c476991 8932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8933 enum nl80211_ps_state ps_state;
8934 struct wireless_dev *wdev;
4c476991 8935 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8936 struct sk_buff *msg;
8937 void *hdr;
8938 int err;
8939
ffb9eb3d
KV		 8940 wdev = dev->ieee80211_ptr;
8941
4c476991
JB		 8942 if (!rdev->ops->set_power_mgmt)
8943 return -EOPNOTSUPP;
ffb9eb3d
KV		 8944
8945 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8946 if (!msg)
8947 return -ENOMEM;
ffb9eb3d 8948
15e47304 8949 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8950 NL80211_CMD_GET_POWER_SAVE);
8951 if (!hdr) {
4c476991 8952 err = -ENOBUFS;
ffb9eb3d
KV		 8953 goto free_msg;
8954 }
8955
8956 if (wdev->ps)
8957 ps_state = NL80211_PS_ENABLED;
8958 else
8959 ps_state = NL80211_PS_DISABLED;
8960
9360ffd1
DM		 8961 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8962 goto nla_put_failure;
ffb9eb3d
KV		 8963
8964 genlmsg_end(msg, hdr);
4c476991 8965 return genlmsg_reply(msg, info);
ffb9eb3d 8966
4c476991 8967 nla_put_failure:
ffb9eb3d 8968 err = -ENOBUFS;
4c476991 8969 free_msg:
ffb9eb3d 8970 nlmsg_free(msg);
ffb9eb3d
KV		 8971 return err;
8972}
8973
94e860f1
JB		 8974static const struct nla_policy
8975nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8976 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8977 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8978 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8979 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8980 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8981 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8982};
8983
84f10708 8984static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8985 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8986{
8987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8988 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8989 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8990
d9d8b019 8991 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8992 return -EINVAL;
8993
84f10708
TP		 8994 if (!rdev->ops->set_cqm_txe_config)
8995 return -EOPNOTSUPP;
8996
8997 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8998 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8999 return -EOPNOTSUPP;
9000
e35e4d28 9001 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9002}
9003
d6dc1a38
JO		 9004static int nl80211_set_cqm_rssi(struct genl_info *info,
9005 s32 threshold, u32 hysteresis)
9006{
4c476991 9007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9008 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9009 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9010
9011 if (threshold > 0)
9012 return -EINVAL;
9013
1da5fcc8
JB		 9014 /* disabling - hysteresis should also be zero then */
9015 if (threshold == 0)
9016 hysteresis = 0;
d6dc1a38 9017
4c476991
JB		 9018 if (!rdev->ops->set_cqm_rssi_config)
9019 return -EOPNOTSUPP;
d6dc1a38 9020
074ac8df 9021 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9022 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9023 return -EOPNOTSUPP;
d6dc1a38 9024
e35e4d28 9025 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9026}
9027
9028static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9029{
9030 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9031 struct nlattr *cqm;
9032 int err;
9033
9034 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9035 if (!cqm)
9036 return -EINVAL;
d6dc1a38
JO		 9037
9038 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9039 nl80211_attr_cqm_policy);
9040 if (err)
1da5fcc8 9041 return err;
d6dc1a38
JO		 9042
9043 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9044 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9045 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9046 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9047
1da5fcc8
JB		 9048 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9049 }
9050
9051 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9052 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9053 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9054 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9055 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9056 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9057
9058 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9059 }
9060
9061 return -EINVAL;
d6dc1a38
JO		 9062}
9063
6e0bd6c3
RL		 9064static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9065{
9066 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9067 struct net_device *dev = info->user_ptr[1];
9068 struct ocb_setup setup = {};
9069 int err;
9070
9071 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9072 if (err)
9073 return err;
9074
9075 return cfg80211_join_ocb(rdev, dev, &setup);
9076}
9077
9078static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9079{
9080 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9081 struct net_device *dev = info->user_ptr[1];
9082
9083 return cfg80211_leave_ocb(rdev, dev);
9084}
9085
29cbe68c
JB		 9086static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9087{
9088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9089 struct net_device *dev = info->user_ptr[1];
9090 struct mesh_config cfg;
c80d545d 9091 struct mesh_setup setup;
29cbe68c
JB		 9092 int err;
9093
9094 /* start with default */
9095 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9096 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9097
24bdd9f4 9098 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9099 /* and parse parameters if given */
24bdd9f4 9100 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9101 if (err)
9102 return err;
9103 }
9104
9105 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9106 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9107 return -EINVAL;
9108
c80d545d
JC		 9109 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9110 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9111
4bb62344
CYY		 9112 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9113 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9114 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9115 return -EINVAL;
9116
9bdbf04d
MP		 9117 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9118 setup.beacon_interval =
9119 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9120 if (setup.beacon_interval < 10 ||
9121 setup.beacon_interval > 10000)
9122 return -EINVAL;
9123 }
9124
9125 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9126 setup.dtim_period =
9127 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9128 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9129 return -EINVAL;
9130 }
9131
c80d545d
JC		 9132 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9133 /* parse additional setup parameters if given */
9134 err = nl80211_parse_mesh_setup(info, &setup);
9135 if (err)
9136 return err;
9137 }
9138
d37bb18a
TP		 9139 if (setup.user_mpm)
9140 cfg.auto_open_plinks = false;
9141
cc1d2806 9142 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9143 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9144 if (err)
9145 return err;
cc1d2806
JB		 9146 } else {
9147 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9148 setup.chandef.chan = NULL;
cc1d2806
JB		 9149 }
9150
ffb3cf30
AN		 9151 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9152 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9153 int n_rates =
9154 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9155 struct ieee80211_supported_band *sband;
9156
9157 if (!setup.chandef.chan)
9158 return -EINVAL;
9159
9160 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9161
9162 err = ieee80211_get_ratemask(sband, rates, n_rates,
9163 &setup.basic_rates);
9164 if (err)
9165 return err;
9166 }
9167
c80d545d 9168 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9169}
9170
9171static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9172{
9173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9174 struct net_device *dev = info->user_ptr[1];
9175
9176 return cfg80211_leave_mesh(rdev, dev);
9177}
9178
dfb89c56 9179#ifdef CONFIG_PM
bb92d199
AK		 9180static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9181 struct cfg80211_registered_device *rdev)
9182{
6abb9cb9 9183 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9184 struct nlattr *nl_pats, *nl_pat;
9185 int i, pat_len;
9186
6abb9cb9 9187 if (!wowlan->n_patterns)
bb92d199
AK		 9188 return 0;
9189
9190 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9191 if (!nl_pats)
9192 return -ENOBUFS;
9193
6abb9cb9 9194 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9195 nl_pat = nla_nest_start(msg, i + 1);
9196 if (!nl_pat)
9197 return -ENOBUFS;
6abb9cb9 9198 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9199 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9200 wowlan->patterns[i].mask) ||
50ac6607
AK		 9201 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9202 wowlan->patterns[i].pattern) ||
9203 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9204 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9205 return -ENOBUFS;
9206 nla_nest_end(msg, nl_pat);
9207 }
9208 nla_nest_end(msg, nl_pats);
9209
9210 return 0;
9211}
9212
2a0e047e
JB		 9213static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9214 struct cfg80211_wowlan_tcp *tcp)
9215{
9216 struct nlattr *nl_tcp;
9217
9218 if (!tcp)
9219 return 0;
9220
9221 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9222 if (!nl_tcp)
9223 return -ENOBUFS;
9224
930345ea
JB		 9225 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9226 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9227 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9228 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9229 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9230 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9231 tcp->payload_len, tcp->payload) ||
9232 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9233 tcp->data_interval) ||
9234 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9235 tcp->wake_len, tcp->wake_data) ||
9236 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9237 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9238 return -ENOBUFS;
9239
9240 if (tcp->payload_seq.len &&
9241 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9242 sizeof(tcp->payload_seq), &tcp->payload_seq))
9243 return -ENOBUFS;
9244
9245 if (tcp->payload_tok.len &&
9246 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9247 sizeof(tcp->payload_tok) + tcp->tokens_size,
9248 &tcp->payload_tok))
9249 return -ENOBUFS;
9250
e248ad30
JB		 9251 nla_nest_end(msg, nl_tcp);
9252
2a0e047e
JB		 9253 return 0;
9254}
9255
75453ccb
LC		 9256static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9257 struct cfg80211_sched_scan_request *req)
9258{
3b06d277 9259 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9260 int i;
9261
9262 if (!req)
9263 return 0;
9264
9265 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9266 if (!nd)
9267 return -ENOBUFS;
9268
3b06d277
AS		 9269 if (req->n_scan_plans == 1 &&
9270 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9271 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9272 return -ENOBUFS;
9273
21fea567
LC		 9274 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9275 return -ENOBUFS;
9276
75453ccb
LC		 9277 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9278 if (!freqs)
9279 return -ENOBUFS;
9280
9281 for (i = 0; i < req->n_channels; i++)
9282 nla_put_u32(msg, i, req->channels[i]->center_freq);
9283
9284 nla_nest_end(msg, freqs);
9285
9286 if (req->n_match_sets) {
9287 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9288 for (i = 0; i < req->n_match_sets; i++) {
9289 match = nla_nest_start(msg, i);
9290 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9291 req->match_sets[i].ssid.ssid_len,
9292 req->match_sets[i].ssid.ssid);
9293 nla_nest_end(msg, match);
9294 }
9295 nla_nest_end(msg, matches);
9296 }
9297
3b06d277
AS		 9298 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9299 if (!scan_plans)
9300 return -ENOBUFS;
9301
9302 for (i = 0; i < req->n_scan_plans; i++) {
9303 scan_plan = nla_nest_start(msg, i + 1);
9304 if (!scan_plan ||
9305 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9306 req->scan_plans[i].interval) ||
9307 (req->scan_plans[i].iterations &&
9308 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9309 req->scan_plans[i].iterations)))
9310 return -ENOBUFS;
9311 nla_nest_end(msg, scan_plan);
9312 }
9313 nla_nest_end(msg, scan_plans);
9314
75453ccb
LC		 9315 nla_nest_end(msg, nd);
9316
9317 return 0;
9318}
9319
ff1b6e69
JB		 9320static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9321{
9322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9323 struct sk_buff *msg;
9324 void *hdr;
2a0e047e 9325 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9326
964dc9e2 9327 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9328 return -EOPNOTSUPP;
9329
6abb9cb9 9330 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9331 /* adjust size to have room for all the data */
6abb9cb9
JB		 9332 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9333 rdev->wiphy.wowlan_config->tcp->payload_len +
9334 rdev->wiphy.wowlan_config->tcp->wake_len +
9335 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9336 }
9337
9338 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9339 if (!msg)
9340 return -ENOMEM;
9341
15e47304 9342 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9343 NL80211_CMD_GET_WOWLAN);
9344 if (!hdr)
9345 goto nla_put_failure;
9346
6abb9cb9 9347 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9348 struct nlattr *nl_wowlan;
9349
9350 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9351 if (!nl_wowlan)
9352 goto nla_put_failure;
9353
6abb9cb9 9354 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9355 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9356 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9357 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9358 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9359 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9360 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9361 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9362 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9363 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9364 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9365 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9366 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9367 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9368 goto nla_put_failure;
2a0e047e 9369
bb92d199
AK		 9370 if (nl80211_send_wowlan_patterns(msg, rdev))
9371 goto nla_put_failure;
2a0e047e 9372
6abb9cb9
JB		 9373 if (nl80211_send_wowlan_tcp(msg,
9374 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9375 goto nla_put_failure;
75453ccb
LC		 9376
9377 if (nl80211_send_wowlan_nd(
9378 msg,
9379 rdev->wiphy.wowlan_config->nd_config))
9380 goto nla_put_failure;
2a0e047e 9381
ff1b6e69
JB		 9382 nla_nest_end(msg, nl_wowlan);
9383 }
9384
9385 genlmsg_end(msg, hdr);
9386 return genlmsg_reply(msg, info);
9387
9388nla_put_failure:
9389 nlmsg_free(msg);
9390 return -ENOBUFS;
9391}
9392
2a0e047e
JB		 9393static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9394 struct nlattr *attr,
9395 struct cfg80211_wowlan *trig)
9396{
9397 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9398 struct cfg80211_wowlan_tcp *cfg;
9399 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9400 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9401 u32 size;
9402 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9403 int err, port;
9404
964dc9e2 9405 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9406 return -EINVAL;
9407
9408 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9409 nla_data(attr), nla_len(attr),
9410 nl80211_wowlan_tcp_policy);
9411 if (err)
9412 return err;
9413
9414 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9415 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9416 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9417 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9418 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9419 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9420 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9421 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9422 return -EINVAL;
9423
9424 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9425 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9426 return -EINVAL;
9427
9428 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9429 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9430 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9431 return -EINVAL;
9432
9433 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9434 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9435 return -EINVAL;
9436
9437 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9438 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9439 return -EINVAL;
9440
9441 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9442 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9443
9444 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9445 tokens_size = tokln - sizeof(*tok);
9446
9447 if (!tok->len || tokens_size % tok->len)
9448 return -EINVAL;
964dc9e2 9449 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9450 return -EINVAL;
964dc9e2 9451 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9452 return -EINVAL;
964dc9e2 9453 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9454 return -EINVAL;
964dc9e2 9455 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9456 return -EINVAL;
9457 if (tok->offset + tok->len > data_size)
9458 return -EINVAL;
9459 }
9460
9461 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9462 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9463 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9464 return -EINVAL;
9465 if (seq->len == 0 || seq->len > 4)
9466 return -EINVAL;
9467 if (seq->len + seq->offset > data_size)
9468 return -EINVAL;
9469 }
9470
9471 size = sizeof(*cfg);
9472 size += data_size;
9473 size += wake_size + wake_mask_size;
9474 size += tokens_size;
9475
9476 cfg = kzalloc(size, GFP_KERNEL);
9477 if (!cfg)
9478 return -ENOMEM;
67b61f6c
JB		 9479 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9480 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9481 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9482 ETH_ALEN);
9483 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9484 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9485 else
9486 port = 0;
9487#ifdef CONFIG_INET
9488 /* allocate a socket and port for it and use it */
9489 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9490 IPPROTO_TCP, &cfg->sock, 1);
9491 if (err) {
9492 kfree(cfg);
9493 return err;
9494 }
9495 if (inet_csk_get_port(cfg->sock->sk, port)) {
9496 sock_release(cfg->sock);
9497 kfree(cfg);
9498 return -EADDRINUSE;
9499 }
9500 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9501#else
9502 if (!port) {
9503 kfree(cfg);
9504 return -EINVAL;
9505 }
9506 cfg->src_port = port;
9507#endif
9508
9509 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9510 cfg->payload_len = data_size;
9511 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9512 memcpy((void *)cfg->payload,
9513 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9514 data_size);
9515 if (seq)
9516 cfg->payload_seq = *seq;
9517 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9518 cfg->wake_len = wake_size;
9519 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9520 memcpy((void *)cfg->wake_data,
9521 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9522 wake_size);
9523 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9524 data_size + wake_size;
9525 memcpy((void *)cfg->wake_mask,
9526 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9527 wake_mask_size);
9528 if (tok) {
9529 cfg->tokens_size = tokens_size;
9530 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9531 }
9532
9533 trig->tcp = cfg;
9534
9535 return 0;
9536}
9537
8cd4d456
LC		 9538static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9539 const struct wiphy_wowlan_support *wowlan,
9540 struct nlattr *attr,
9541 struct cfg80211_wowlan *trig)
9542{
9543 struct nlattr **tb;
9544 int err;
9545
9546 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9547 if (!tb)
9548 return -ENOMEM;
9549
9550 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9551 err = -EOPNOTSUPP;
9552 goto out;
9553 }
9554
9555 err = nla_parse(tb, NL80211_ATTR_MAX,
9556 nla_data(attr), nla_len(attr),
9557 nl80211_policy);
9558 if (err)
9559 goto out;
9560
ad2b26ab 9561 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9562 err = PTR_ERR_OR_ZERO(trig->nd_config);
9563 if (err)
9564 trig->nd_config = NULL;
9565
9566out:
9567 kfree(tb);
9568 return err;
9569}
9570
ff1b6e69
JB		 9571static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9572{
9573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9574 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9575 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9576 struct cfg80211_wowlan *ntrig;
964dc9e2 9577 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9578 int err, i;
6abb9cb9 9579 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9580 bool regular = false;
ff1b6e69 9581
964dc9e2 9582 if (!wowlan)
ff1b6e69
JB		 9583 return -EOPNOTSUPP;
9584
ae33bd81
JB		 9585 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9586 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9587 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9588 goto set_wakeup;
9589 }
ff1b6e69
JB		 9590
9591 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9592 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9593 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9594 nl80211_wowlan_policy);
9595 if (err)
9596 return err;
9597
9598 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9599 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9600 return -EINVAL;
9601 new_triggers.any = true;
9602 }
9603
9604 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9605 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9606 return -EINVAL;
9607 new_triggers.disconnect = true;
98fc4386 9608 regular = true;
ff1b6e69
JB		 9609 }
9610
9611 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9612 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9613 return -EINVAL;
9614 new_triggers.magic_pkt = true;
98fc4386 9615 regular = true;
ff1b6e69
JB		 9616 }
9617
77dbbb13
JB		 9618 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9619 return -EINVAL;
9620
9621 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9622 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9623 return -EINVAL;
9624 new_triggers.gtk_rekey_failure = true;
98fc4386 9625 regular = true;
77dbbb13
JB		 9626 }
9627
9628 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9629 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9630 return -EINVAL;
9631 new_triggers.eap_identity_req = true;
98fc4386 9632 regular = true;
77dbbb13
JB		 9633 }
9634
9635 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9636 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9637 return -EINVAL;
9638 new_triggers.four_way_handshake = true;
98fc4386 9639 regular = true;
77dbbb13
JB		 9640 }
9641
9642 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9643 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9644 return -EINVAL;
9645 new_triggers.rfkill_release = true;
98fc4386 9646 regular = true;
77dbbb13
JB		 9647 }
9648
ff1b6e69
JB		 9649 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9650 struct nlattr *pat;
9651 int n_patterns = 0;
bb92d199 9652 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9653 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9654
98fc4386
JB		 9655 regular = true;
9656
ff1b6e69
JB		 9657 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9658 rem)
9659 n_patterns++;
9660 if (n_patterns > wowlan->n_patterns)
9661 return -EINVAL;
9662
9663 new_triggers.patterns = kcalloc(n_patterns,
9664 sizeof(new_triggers.patterns[0]),
9665 GFP_KERNEL);
9666 if (!new_triggers.patterns)
9667 return -ENOMEM;
9668
9669 new_triggers.n_patterns = n_patterns;
9670 i = 0;
9671
9672 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9673 rem) {
922bd80f
JB		 9674 u8 *mask_pat;
9675
50ac6607
AK		 9676 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9677 nla_len(pat), NULL);
ff1b6e69 9678 err = -EINVAL;
50ac6607
AK		 9679 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9680 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9681 goto error;
50ac6607 9682 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9683 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9684 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9685 goto error;
9686 if (pat_len > wowlan->pattern_max_len ||
9687 pat_len < wowlan->pattern_min_len)
9688 goto error;
9689
50ac6607 9690 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9691 pkt_offset = 0;
9692 else
9693 pkt_offset = nla_get_u32(
50ac6607 9694 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9695 if (pkt_offset > wowlan->max_pkt_offset)
9696 goto error;
9697 new_triggers.patterns[i].pkt_offset = pkt_offset;
9698
922bd80f
JB		 9699 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9700 if (!mask_pat) {
ff1b6e69
JB		 9701 err = -ENOMEM;
9702 goto error;
9703 }
922bd80f
JB		 9704 new_triggers.patterns[i].mask = mask_pat;
9705 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9706 mask_len);
922bd80f
JB		 9707 mask_pat += mask_len;
9708 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9709 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9710 memcpy(mask_pat,
50ac6607 9711 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9712 pat_len);
9713 i++;
9714 }
9715 }
9716
2a0e047e 9717 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9718 regular = true;
2a0e047e
JB		 9719 err = nl80211_parse_wowlan_tcp(
9720 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9721 &new_triggers);
9722 if (err)
9723 goto error;
9724 }
9725
8cd4d456 9726 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9727 regular = true;
8cd4d456
LC		 9728 err = nl80211_parse_wowlan_nd(
9729 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9730 &new_triggers);
9731 if (err)
9732 goto error;
9733 }
9734
98fc4386
JB		 9735 /* The 'any' trigger means the device continues operating more or less
9736 * as in its normal operation mode and wakes up the host on most of the
9737 * normal interrupts (like packet RX, ...)
9738 * It therefore makes little sense to combine with the more constrained
9739 * wakeup trigger modes.
9740 */
9741 if (new_triggers.any && regular) {
9742 err = -EINVAL;
9743 goto error;
9744 }
9745
ae33bd81
JB		 9746 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9747 if (!ntrig) {
9748 err = -ENOMEM;
9749 goto error;
ff1b6e69 9750 }
ae33bd81 9751 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9752 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9753
ae33bd81 9754 set_wakeup:
6abb9cb9
JB		 9755 if (rdev->ops->set_wakeup &&
9756 prev_enabled != !!rdev->wiphy.wowlan_config)
9757 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9758
ff1b6e69
JB		 9759 return 0;
9760 error:
9761 for (i = 0; i < new_triggers.n_patterns; i++)
9762 kfree(new_triggers.patterns[i].mask);
9763 kfree(new_triggers.patterns);
2a0e047e
JB		 9764 if (new_triggers.tcp && new_triggers.tcp->sock)
9765 sock_release(new_triggers.tcp->sock);
9766 kfree(new_triggers.tcp);
e5dbe070 9767 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9768 return err;
9769}
dfb89c56 9770#endif
ff1b6e69 9771
be29b99a
AK		 9772static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9773 struct cfg80211_registered_device *rdev)
9774{
9775 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9776 int i, j, pat_len;
9777 struct cfg80211_coalesce_rules *rule;
9778
9779 if (!rdev->coalesce->n_rules)
9780 return 0;
9781
9782 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9783 if (!nl_rules)
9784 return -ENOBUFS;
9785
9786 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9787 nl_rule = nla_nest_start(msg, i + 1);
9788 if (!nl_rule)
9789 return -ENOBUFS;
9790
9791 rule = &rdev->coalesce->rules[i];
9792 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9793 rule->delay))
9794 return -ENOBUFS;
9795
9796 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9797 rule->condition))
9798 return -ENOBUFS;
9799
9800 nl_pats = nla_nest_start(msg,
9801 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9802 if (!nl_pats)
9803 return -ENOBUFS;
9804
9805 for (j = 0; j < rule->n_patterns; j++) {
9806 nl_pat = nla_nest_start(msg, j + 1);
9807 if (!nl_pat)
9808 return -ENOBUFS;
9809 pat_len = rule->patterns[j].pattern_len;
9810 if (nla_put(msg, NL80211_PKTPAT_MASK,
9811 DIV_ROUND_UP(pat_len, 8),
9812 rule->patterns[j].mask) ||
9813 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9814 rule->patterns[j].pattern) ||
9815 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9816 rule->patterns[j].pkt_offset))
9817 return -ENOBUFS;
9818 nla_nest_end(msg, nl_pat);
9819 }
9820 nla_nest_end(msg, nl_pats);
9821 nla_nest_end(msg, nl_rule);
9822 }
9823 nla_nest_end(msg, nl_rules);
9824
9825 return 0;
9826}
9827
9828static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9829{
9830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9831 struct sk_buff *msg;
9832 void *hdr;
9833
9834 if (!rdev->wiphy.coalesce)
9835 return -EOPNOTSUPP;
9836
9837 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9838 if (!msg)
9839 return -ENOMEM;
9840
9841 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9842 NL80211_CMD_GET_COALESCE);
9843 if (!hdr)
9844 goto nla_put_failure;
9845
9846 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9847 goto nla_put_failure;
9848
9849 genlmsg_end(msg, hdr);
9850 return genlmsg_reply(msg, info);
9851
9852nla_put_failure:
9853 nlmsg_free(msg);
9854 return -ENOBUFS;
9855}
9856
9857void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9858{
9859 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9860 int i, j;
9861 struct cfg80211_coalesce_rules *rule;
9862
9863 if (!coalesce)
9864 return;
9865
9866 for (i = 0; i < coalesce->n_rules; i++) {
9867 rule = &coalesce->rules[i];
9868 for (j = 0; j < rule->n_patterns; j++)
9869 kfree(rule->patterns[j].mask);
9870 kfree(rule->patterns);
9871 }
9872 kfree(coalesce->rules);
9873 kfree(coalesce);
9874 rdev->coalesce = NULL;
9875}
9876
9877static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9878 struct nlattr *rule,
9879 struct cfg80211_coalesce_rules *new_rule)
9880{
9881 int err, i;
9882 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9883 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9884 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9885 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9886
9887 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9888 nla_len(rule), nl80211_coalesce_policy);
9889 if (err)
9890 return err;
9891
9892 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9893 new_rule->delay =
9894 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9895 if (new_rule->delay > coalesce->max_delay)
9896 return -EINVAL;
9897
9898 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9899 new_rule->condition =
9900 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9901 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9902 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9903 return -EINVAL;
9904
9905 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9906 return -EINVAL;
9907
9908 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9909 rem)
9910 n_patterns++;
9911 if (n_patterns > coalesce->n_patterns)
9912 return -EINVAL;
9913
9914 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9915 GFP_KERNEL);
9916 if (!new_rule->patterns)
9917 return -ENOMEM;
9918
9919 new_rule->n_patterns = n_patterns;
9920 i = 0;
9921
9922 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9923 rem) {
922bd80f
JB		 9924 u8 *mask_pat;
9925
be29b99a
AK		 9926 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9927 nla_len(pat), NULL);
9928 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9929 !pat_tb[NL80211_PKTPAT_PATTERN])
9930 return -EINVAL;
9931 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9932 mask_len = DIV_ROUND_UP(pat_len, 8);
9933 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9934 return -EINVAL;
9935 if (pat_len > coalesce->pattern_max_len ||
9936 pat_len < coalesce->pattern_min_len)
9937 return -EINVAL;
9938
9939 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9940 pkt_offset = 0;
9941 else
9942 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9943 if (pkt_offset > coalesce->max_pkt_offset)
9944 return -EINVAL;
9945 new_rule->patterns[i].pkt_offset = pkt_offset;
9946
922bd80f
JB		 9947 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9948 if (!mask_pat)
be29b99a 9949 return -ENOMEM;
922bd80f
JB		 9950
9951 new_rule->patterns[i].mask = mask_pat;
9952 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9953 mask_len);
9954
9955 mask_pat += mask_len;
9956 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9957 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9958 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9959 pat_len);
be29b99a
AK		 9960 i++;
9961 }
9962
9963 return 0;
9964}
9965
9966static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9967{
9968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9969 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9970 struct cfg80211_coalesce new_coalesce = {};
9971 struct cfg80211_coalesce *n_coalesce;
9972 int err, rem_rule, n_rules = 0, i, j;
9973 struct nlattr *rule;
9974 struct cfg80211_coalesce_rules *tmp_rule;
9975
9976 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9977 return -EOPNOTSUPP;
9978
9979 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9980 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 9981 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 9982 return 0;
9983 }
9984
9985 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9986 rem_rule)
9987 n_rules++;
9988 if (n_rules > coalesce->n_rules)
9989 return -EINVAL;
9990
9991 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9992 GFP_KERNEL);
9993 if (!new_coalesce.rules)
9994 return -ENOMEM;
9995
9996 new_coalesce.n_rules = n_rules;
9997 i = 0;
9998
9999 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10000 rem_rule) {
10001 err = nl80211_parse_coalesce_rule(rdev, rule,
10002 &new_coalesce.rules[i]);
10003 if (err)
10004 goto error;
10005
10006 i++;
10007 }
10008
a1056b1b 10009 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10010 if (err)
10011 goto error;
10012
10013 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10014 if (!n_coalesce) {
10015 err = -ENOMEM;
10016 goto error;
10017 }
10018 cfg80211_rdev_free_coalesce(rdev);
10019 rdev->coalesce = n_coalesce;
10020
10021 return 0;
10022error:
10023 for (i = 0; i < new_coalesce.n_rules; i++) {
10024 tmp_rule = &new_coalesce.rules[i];
10025 for (j = 0; j < tmp_rule->n_patterns; j++)
10026 kfree(tmp_rule->patterns[j].mask);
10027 kfree(tmp_rule->patterns);
10028 }
10029 kfree(new_coalesce.rules);
10030
10031 return err;
10032}
10033
e5497d76
JB		 10034static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10035{
10036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10037 struct net_device *dev = info->user_ptr[1];
10038 struct wireless_dev *wdev = dev->ieee80211_ptr;
10039 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10040 struct cfg80211_gtk_rekey_data rekey_data;
10041 int err;
10042
10043 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10044 return -EINVAL;
10045
10046 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10047 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10048 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10049 nl80211_rekey_policy);
10050 if (err)
10051 return err;
10052
10053 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10054 return -ERANGE;
10055 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10056 return -ERANGE;
10057 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10058 return -ERANGE;
10059
78f686ca
JB		 10060 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10061 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10062 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10063
10064 wdev_lock(wdev);
10065 if (!wdev->current_bss) {
10066 err = -ENOTCONN;
10067 goto out;
10068 }
10069
10070 if (!rdev->ops->set_rekey_data) {
10071 err = -EOPNOTSUPP;
10072 goto out;
10073 }
10074
e35e4d28 10075 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10076 out:
10077 wdev_unlock(wdev);
10078 return err;
10079}
10080
28946da7
JB		 10081static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10082 struct genl_info *info)
10083{
10084 struct net_device *dev = info->user_ptr[1];
10085 struct wireless_dev *wdev = dev->ieee80211_ptr;
10086
10087 if (wdev->iftype != NL80211_IFTYPE_AP &&
10088 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10089 return -EINVAL;
10090
15e47304 10091 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10092 return -EBUSY;
10093
15e47304 10094 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10095 return 0;
10096}
10097
7f6cf311
JB		 10098static int nl80211_probe_client(struct sk_buff *skb,
10099 struct genl_info *info)
10100{
10101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10102 struct net_device *dev = info->user_ptr[1];
10103 struct wireless_dev *wdev = dev->ieee80211_ptr;
10104 struct sk_buff *msg;
10105 void *hdr;
10106 const u8 *addr;
10107 u64 cookie;
10108 int err;
10109
10110 if (wdev->iftype != NL80211_IFTYPE_AP &&
10111 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10112 return -EOPNOTSUPP;
10113
10114 if (!info->attrs[NL80211_ATTR_MAC])
10115 return -EINVAL;
10116
10117 if (!rdev->ops->probe_client)
10118 return -EOPNOTSUPP;
10119
10120 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10121 if (!msg)
10122 return -ENOMEM;
10123
15e47304 10124 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10125 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10126 if (!hdr) {
10127 err = -ENOBUFS;
7f6cf311
JB		 10128 goto free_msg;
10129 }
10130
10131 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10132
e35e4d28 10133 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10134 if (err)
10135 goto free_msg;
10136
2dad624e
ND		 10137 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10138 NL80211_ATTR_PAD))
9360ffd1 10139 goto nla_put_failure;
7f6cf311
JB		 10140
10141 genlmsg_end(msg, hdr);
10142
10143 return genlmsg_reply(msg, info);
10144
10145 nla_put_failure:
10146 err = -ENOBUFS;
10147 free_msg:
10148 nlmsg_free(msg);
10149 return err;
10150}
10151
5e760230
JB		 10152static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10153{
10154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10155 struct cfg80211_beacon_registration *reg, *nreg;
10156 int rv;
5e760230
JB		 10157
10158 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10159 return -EOPNOTSUPP;
10160
37c73b5f
BG		 10161 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10162 if (!nreg)
10163 return -ENOMEM;
10164
10165 /* First, check if already registered. */
10166 spin_lock_bh(&rdev->beacon_registrations_lock);
10167 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10168 if (reg->nlportid == info->snd_portid) {
10169 rv = -EALREADY;
10170 goto out_err;
10171 }
10172 }
10173 /* Add it to the list */
10174 nreg->nlportid = info->snd_portid;
10175 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10176
37c73b5f 10177 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10178
10179 return 0;
37c73b5f
BG		 10180out_err:
10181 spin_unlock_bh(&rdev->beacon_registrations_lock);
10182 kfree(nreg);
10183 return rv;
5e760230
JB		 10184}
10185
98104fde
JB		 10186static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10187{
10188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10189 struct wireless_dev *wdev = info->user_ptr[1];
10190 int err;
10191
10192 if (!rdev->ops->start_p2p_device)
10193 return -EOPNOTSUPP;
10194
10195 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10196 return -EOPNOTSUPP;
10197
10198 if (wdev->p2p_started)
10199 return 0;
10200
b6a55015
LC		 10201 if (rfkill_blocked(rdev->rfkill))
10202 return -ERFKILL;
98104fde 10203
eeb126e9 10204 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10205 if (err)
10206 return err;
10207
10208 wdev->p2p_started = true;
98104fde 10209 rdev->opencount++;
98104fde
JB		 10210
10211 return 0;
10212}
10213
10214static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10215{
10216 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10217 struct wireless_dev *wdev = info->user_ptr[1];
10218
10219 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10220 return -EOPNOTSUPP;
10221
10222 if (!rdev->ops->stop_p2p_device)
10223 return -EOPNOTSUPP;
10224
f9f47529 10225 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10226
10227 return 0;
10228}
10229
3713b4e3
JB		 10230static int nl80211_get_protocol_features(struct sk_buff *skb,
10231 struct genl_info *info)
10232{
10233 void *hdr;
10234 struct sk_buff *msg;
10235
10236 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10237 if (!msg)
10238 return -ENOMEM;
10239
10240 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10241 NL80211_CMD_GET_PROTOCOL_FEATURES);
10242 if (!hdr)
10243 goto nla_put_failure;
10244
10245 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10246 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10247 goto nla_put_failure;
10248
10249 genlmsg_end(msg, hdr);
10250 return genlmsg_reply(msg, info);
10251
10252 nla_put_failure:
10253 kfree_skb(msg);
10254 return -ENOBUFS;
10255}
10256
355199e0
JM		 10257static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10258{
10259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10260 struct cfg80211_update_ft_ies_params ft_params;
10261 struct net_device *dev = info->user_ptr[1];
10262
10263 if (!rdev->ops->update_ft_ies)
10264 return -EOPNOTSUPP;
10265
10266 if (!info->attrs[NL80211_ATTR_MDID] ||
10267 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10268 return -EINVAL;
10269
10270 memset(&ft_params, 0, sizeof(ft_params));
10271 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10272 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10273 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10274
10275 return rdev_update_ft_ies(rdev, dev, &ft_params);
10276}
10277
5de17984
AS		 10278static int nl80211_crit_protocol_start(struct sk_buff *skb,
10279 struct genl_info *info)
10280{
10281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10282 struct wireless_dev *wdev = info->user_ptr[1];
10283 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10284 u16 duration;
10285 int ret;
10286
10287 if (!rdev->ops->crit_proto_start)
10288 return -EOPNOTSUPP;
10289
10290 if (WARN_ON(!rdev->ops->crit_proto_stop))
10291 return -EINVAL;
10292
10293 if (rdev->crit_proto_nlportid)
10294 return -EBUSY;
10295
10296 /* determine protocol if provided */
10297 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10298 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10299
10300 if (proto >= NUM_NL80211_CRIT_PROTO)
10301 return -EINVAL;
10302
10303 /* timeout must be provided */
10304 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10305 return -EINVAL;
10306
10307 duration =
10308 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10309
10310 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10311 return -ERANGE;
10312
10313 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10314 if (!ret)
10315 rdev->crit_proto_nlportid = info->snd_portid;
10316
10317 return ret;
10318}
10319
10320static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10321 struct genl_info *info)
10322{
10323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10324 struct wireless_dev *wdev = info->user_ptr[1];
10325
10326 if (!rdev->ops->crit_proto_stop)
10327 return -EOPNOTSUPP;
10328
10329 if (rdev->crit_proto_nlportid) {
10330 rdev->crit_proto_nlportid = 0;
10331 rdev_crit_proto_stop(rdev, wdev);
10332 }
10333 return 0;
10334}
10335
ad7e718c
JB		 10336static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10337{
10338 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10339 struct wireless_dev *wdev =
10340 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10341 int i, err;
10342 u32 vid, subcmd;
10343
10344 if (!rdev->wiphy.vendor_commands)
10345 return -EOPNOTSUPP;
10346
10347 if (IS_ERR(wdev)) {
10348 err = PTR_ERR(wdev);
10349 if (err != -EINVAL)
10350 return err;
10351 wdev = NULL;
10352 } else if (wdev->wiphy != &rdev->wiphy) {
10353 return -EINVAL;
10354 }
10355
10356 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10357 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10358 return -EINVAL;
10359
10360 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10361 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10362 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10363 const struct wiphy_vendor_command *vcmd;
10364 void *data = NULL;
10365 int len = 0;
10366
10367 vcmd = &rdev->wiphy.vendor_commands[i];
10368
10369 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10370 continue;
10371
10372 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10373 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10374 if (!wdev)
10375 return -EINVAL;
10376 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10377 !wdev->netdev)
10378 return -EINVAL;
10379
10380 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10381 if (wdev->netdev &&
10382 !netif_running(wdev->netdev))
10383 return -ENETDOWN;
10384 if (!wdev->netdev && !wdev->p2p_started)
10385 return -ENETDOWN;
10386 }
7bdbe400
JB		 10387
10388 if (!vcmd->doit)
10389 return -EOPNOTSUPP;
ad7e718c
JB		 10390 } else {
10391 wdev = NULL;
10392 }
10393
10394 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10395 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10396 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10397 }
10398
10399 rdev->cur_cmd_info = info;
10400 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10401 data, len);
10402 rdev->cur_cmd_info = NULL;
10403 return err;
10404 }
10405
10406 return -EOPNOTSUPP;
10407}
10408
7bdbe400
JB		 10409static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10410 struct netlink_callback *cb,
10411 struct cfg80211_registered_device **rdev,
10412 struct wireless_dev **wdev)
10413{
10414 u32 vid, subcmd;
10415 unsigned int i;
10416 int vcmd_idx = -1;
10417 int err;
10418 void *data = NULL;
10419 unsigned int data_len = 0;
10420
10421 rtnl_lock();
10422
10423 if (cb->args[0]) {
10424 /* subtract the 1 again here */
10425 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10426 struct wireless_dev *tmp;
10427
10428 if (!wiphy) {
10429 err = -ENODEV;
10430 goto out_unlock;
10431 }
10432 *rdev = wiphy_to_rdev(wiphy);
10433 *wdev = NULL;
10434
10435 if (cb->args[1]) {
53873f13 10436 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 10437 if (tmp->identifier == cb->args[1] - 1) {
10438 *wdev = tmp;
10439 break;
10440 }
10441 }
10442 }
10443
10444 /* keep rtnl locked in successful case */
10445 return 0;
10446 }
10447
10448 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10449 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10450 nl80211_policy);
10451 if (err)
10452 goto out_unlock;
10453
10454 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10455 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10456 err = -EINVAL;
10457 goto out_unlock;
10458 }
10459
10460 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10461 nl80211_fam.attrbuf);
10462 if (IS_ERR(*wdev))
10463 *wdev = NULL;
10464
10465 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10466 nl80211_fam.attrbuf);
10467 if (IS_ERR(*rdev)) {
10468 err = PTR_ERR(*rdev);
10469 goto out_unlock;
10470 }
10471
10472 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10473 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10474
10475 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10476 const struct wiphy_vendor_command *vcmd;
10477
10478 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10479
10480 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10481 continue;
10482
10483 if (!vcmd->dumpit) {
10484 err = -EOPNOTSUPP;
10485 goto out_unlock;
10486 }
10487
10488 vcmd_idx = i;
10489 break;
10490 }
10491
10492 if (vcmd_idx < 0) {
10493 err = -EOPNOTSUPP;
10494 goto out_unlock;
10495 }
10496
10497 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10498 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10499 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10500 }
10501
10502 /* 0 is the first index - add 1 to parse only once */
10503 cb->args[0] = (*rdev)->wiphy_idx + 1;
10504 /* add 1 to know if it was NULL */
10505 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10506 cb->args[2] = vcmd_idx;
10507 cb->args[3] = (unsigned long)data;
10508 cb->args[4] = data_len;
10509
10510 /* keep rtnl locked in successful case */
10511 return 0;
10512 out_unlock:
10513 rtnl_unlock();
10514 return err;
10515}
10516
10517static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10518 struct netlink_callback *cb)
10519{
10520 struct cfg80211_registered_device *rdev;
10521 struct wireless_dev *wdev;
10522 unsigned int vcmd_idx;
10523 const struct wiphy_vendor_command *vcmd;
10524 void *data;
10525 int data_len;
10526 int err;
10527 struct nlattr *vendor_data;
10528
10529 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10530 if (err)
10531 return err;
10532
10533 vcmd_idx = cb->args[2];
10534 data = (void *)cb->args[3];
10535 data_len = cb->args[4];
10536 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10537
10538 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10539 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10540 if (!wdev)
10541 return -EINVAL;
10542 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10543 !wdev->netdev)
10544 return -EINVAL;
10545
10546 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10547 if (wdev->netdev &&
10548 !netif_running(wdev->netdev))
10549 return -ENETDOWN;
10550 if (!wdev->netdev && !wdev->p2p_started)
10551 return -ENETDOWN;
10552 }
10553 }
10554
10555 while (1) {
10556 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10557 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10558 NL80211_CMD_VENDOR);
10559 if (!hdr)
10560 break;
10561
10562 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 10563 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10564 wdev_id(wdev),
10565 NL80211_ATTR_PAD))) {
7bdbe400
JB		 10566 genlmsg_cancel(skb, hdr);
10567 break;
10568 }
10569
10570 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10571 if (!vendor_data) {
10572 genlmsg_cancel(skb, hdr);
10573 break;
10574 }
10575
10576 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10577 (unsigned long *)&cb->args[5]);
10578 nla_nest_end(skb, vendor_data);
10579
10580 if (err == -ENOBUFS || err == -ENOENT) {
10581 genlmsg_cancel(skb, hdr);
10582 break;
10583 } else if (err) {
10584 genlmsg_cancel(skb, hdr);
10585 goto out;
10586 }
10587
10588 genlmsg_end(skb, hdr);
10589 }
10590
10591 err = skb->len;
10592 out:
10593 rtnl_unlock();
10594 return err;
10595}
10596
ad7e718c
JB		 10597struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10598 enum nl80211_commands cmd,
10599 enum nl80211_attrs attr,
10600 int approxlen)
10601{
f26cbf40 10602 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10603
10604 if (WARN_ON(!rdev->cur_cmd_info))
10605 return NULL;
10606
6c09e791 10607 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10608 rdev->cur_cmd_info->snd_portid,
10609 rdev->cur_cmd_info->snd_seq,
567ffc35 10610 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10611}
10612EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10613
10614int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10615{
10616 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10617 void *hdr = ((void **)skb->cb)[1];
10618 struct nlattr *data = ((void **)skb->cb)[2];
10619
bd8c78e7
JB		 10620 /* clear CB data for netlink core to own from now on */
10621 memset(skb->cb, 0, sizeof(skb->cb));
10622
ad7e718c
JB		 10623 if (WARN_ON(!rdev->cur_cmd_info)) {
10624 kfree_skb(skb);
10625 return -EINVAL;
10626 }
10627
10628 nla_nest_end(skb, data);
10629 genlmsg_end(skb, hdr);
10630 return genlmsg_reply(skb, rdev->cur_cmd_info);
10631}
10632EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10633
10634
fa9ffc74
KP		 10635static int nl80211_set_qos_map(struct sk_buff *skb,
10636 struct genl_info *info)
10637{
10638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10639 struct cfg80211_qos_map *qos_map = NULL;
10640 struct net_device *dev = info->user_ptr[1];
10641 u8 *pos, len, num_des, des_len, des;
10642 int ret;
10643
10644 if (!rdev->ops->set_qos_map)
10645 return -EOPNOTSUPP;
10646
10647 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10648 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10649 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10650
10651 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10652 len > IEEE80211_QOS_MAP_LEN_MAX)
10653 return -EINVAL;
10654
10655 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10656 if (!qos_map)
10657 return -ENOMEM;
10658
10659 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10660 if (num_des) {
10661 des_len = num_des *
10662 sizeof(struct cfg80211_dscp_exception);
10663 memcpy(qos_map->dscp_exception, pos, des_len);
10664 qos_map->num_des = num_des;
10665 for (des = 0; des < num_des; des++) {
10666 if (qos_map->dscp_exception[des].up > 7) {
10667 kfree(qos_map);
10668 return -EINVAL;
10669 }
10670 }
10671 pos += des_len;
10672 }
10673 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10674 }
10675
10676 wdev_lock(dev->ieee80211_ptr);
10677 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10678 if (!ret)
10679 ret = rdev_set_qos_map(rdev, dev, qos_map);
10680 wdev_unlock(dev->ieee80211_ptr);
10681
10682 kfree(qos_map);
10683 return ret;
10684}
10685
960d01ac
JB		 10686static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10687{
10688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10689 struct net_device *dev = info->user_ptr[1];
10690 struct wireless_dev *wdev = dev->ieee80211_ptr;
10691 const u8 *peer;
10692 u8 tsid, up;
10693 u16 admitted_time = 0;
10694 int err;
10695
723e73ac 10696 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10697 return -EOPNOTSUPP;
10698
10699 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10700 !info->attrs[NL80211_ATTR_USER_PRIO])
10701 return -EINVAL;
10702
10703 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10704 if (tsid >= IEEE80211_NUM_TIDS)
10705 return -EINVAL;
10706
10707 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10708 if (up >= IEEE80211_NUM_UPS)
10709 return -EINVAL;
10710
10711 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10712 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10713 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10714 * need more attributes for that (e.g. BA session requirement);
10715 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10716 */
10717 return -EINVAL;
10718 }
10719
10720 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10721
10722 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10723 admitted_time =
10724 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10725 if (!admitted_time)
10726 return -EINVAL;
10727 }
10728
10729 wdev_lock(wdev);
10730 switch (wdev->iftype) {
10731 case NL80211_IFTYPE_STATION:
10732 case NL80211_IFTYPE_P2P_CLIENT:
10733 if (wdev->current_bss)
10734 break;
10735 err = -ENOTCONN;
10736 goto out;
10737 default:
10738 err = -EOPNOTSUPP;
10739 goto out;
10740 }
10741
10742 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10743
10744 out:
10745 wdev_unlock(wdev);
10746 return err;
10747}
10748
10749static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10750{
10751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10752 struct net_device *dev = info->user_ptr[1];
10753 struct wireless_dev *wdev = dev->ieee80211_ptr;
10754 const u8 *peer;
10755 u8 tsid;
10756 int err;
10757
10758 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10759 return -EINVAL;
10760
10761 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10762 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10763
10764 wdev_lock(wdev);
10765 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10766 wdev_unlock(wdev);
10767
10768 return err;
10769}
10770
1057d35e
AN		 10771static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10772 struct genl_info *info)
10773{
10774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10775 struct net_device *dev = info->user_ptr[1];
10776 struct wireless_dev *wdev = dev->ieee80211_ptr;
10777 struct cfg80211_chan_def chandef = {};
10778 const u8 *addr;
10779 u8 oper_class;
10780 int err;
10781
10782 if (!rdev->ops->tdls_channel_switch ||
10783 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10784 return -EOPNOTSUPP;
10785
10786 switch (dev->ieee80211_ptr->iftype) {
10787 case NL80211_IFTYPE_STATION:
10788 case NL80211_IFTYPE_P2P_CLIENT:
10789 break;
10790 default:
10791 return -EOPNOTSUPP;
10792 }
10793
10794 if (!info->attrs[NL80211_ATTR_MAC] ||
10795 !info->attrs[NL80211_ATTR_OPER_CLASS])
10796 return -EINVAL;
10797
10798 err = nl80211_parse_chandef(rdev, info, &chandef);
10799 if (err)
10800 return err;
10801
10802 /*
10803 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10804 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10805 * specification is not defined for them.
10806 */
57fbcce3 10807 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 10808 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10809 chandef.width != NL80211_CHAN_WIDTH_20)
10810 return -EINVAL;
10811
10812 /* we will be active on the TDLS link */
923b352f
AN		 10813 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10814 wdev->iftype))
1057d35e
AN		 10815 return -EINVAL;
10816
10817 /* don't allow switching to DFS channels */
10818 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10819 return -EINVAL;
10820
10821 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10822 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10823
10824 wdev_lock(wdev);
10825 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10826 wdev_unlock(wdev);
10827
10828 return err;
10829}
10830
10831static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10832 struct genl_info *info)
10833{
10834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10835 struct net_device *dev = info->user_ptr[1];
10836 struct wireless_dev *wdev = dev->ieee80211_ptr;
10837 const u8 *addr;
10838
10839 if (!rdev->ops->tdls_channel_switch ||
10840 !rdev->ops->tdls_cancel_channel_switch ||
10841 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10842 return -EOPNOTSUPP;
10843
10844 switch (dev->ieee80211_ptr->iftype) {
10845 case NL80211_IFTYPE_STATION:
10846 case NL80211_IFTYPE_P2P_CLIENT:
10847 break;
10848 default:
10849 return -EOPNOTSUPP;
10850 }
10851
10852 if (!info->attrs[NL80211_ATTR_MAC])
10853 return -EINVAL;
10854
10855 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10856
10857 wdev_lock(wdev);
10858 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10859 wdev_unlock(wdev);
10860
10861 return 0;
10862}
10863
4c476991
JB		 10864#define NL80211_FLAG_NEED_WIPHY 0x01
10865#define NL80211_FLAG_NEED_NETDEV 0x02
10866#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10867#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10868#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10869 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10870#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10871/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10872#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10873 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10874#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10875
f84f771d 10876static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10877 struct genl_info *info)
10878{
10879 struct cfg80211_registered_device *rdev;
89a54e48 10880 struct wireless_dev *wdev;
4c476991 10881 struct net_device *dev;
4c476991
JB		 10882 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10883
10884 if (rtnl)
10885 rtnl_lock();
10886
10887 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10888 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10889 if (IS_ERR(rdev)) {
10890 if (rtnl)
10891 rtnl_unlock();
10892 return PTR_ERR(rdev);
10893 }
10894 info->user_ptr[0] = rdev;
1bf614ef
JB		 10895 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10896 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10897 ASSERT_RTNL();
10898
89a54e48
JB		 10899 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10900 info->attrs);
10901 if (IS_ERR(wdev)) {
4c476991
JB		 10902 if (rtnl)
10903 rtnl_unlock();
89a54e48 10904 return PTR_ERR(wdev);
4c476991 10905 }
89a54e48 10906
89a54e48 10907 dev = wdev->netdev;
f26cbf40 10908 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10909
1bf614ef
JB		 10910 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10911 if (!dev) {
1bf614ef
JB		 10912 if (rtnl)
10913 rtnl_unlock();
10914 return -EINVAL;
10915 }
10916
10917 info->user_ptr[1] = dev;
10918 } else {
10919 info->user_ptr[1] = wdev;
41265714 10920 }
1bf614ef
JB		 10921
10922 if (dev) {
10923 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10924 !netif_running(dev)) {
1bf614ef
JB		 10925 if (rtnl)
10926 rtnl_unlock();
10927 return -ENETDOWN;
10928 }
10929
10930 dev_hold(dev);
98104fde
JB		 10931 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10932 if (!wdev->p2p_started) {
98104fde
JB		 10933 if (rtnl)
10934 rtnl_unlock();
10935 return -ENETDOWN;
10936 }
41265714 10937 }
89a54e48 10938
4c476991 10939 info->user_ptr[0] = rdev;
4c476991
JB		 10940 }
10941
10942 return 0;
10943}
10944
f84f771d 10945static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10946 struct genl_info *info)
10947{
1bf614ef
JB		 10948 if (info->user_ptr[1]) {
10949 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10950 struct wireless_dev *wdev = info->user_ptr[1];
10951
10952 if (wdev->netdev)
10953 dev_put(wdev->netdev);
10954 } else {
10955 dev_put(info->user_ptr[1]);
10956 }
10957 }
5393b917 10958
4c476991
JB		 10959 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10960 rtnl_unlock();
5393b917
JB		 10961
10962 /* If needed, clear the netlink message payload from the SKB
10963 * as it might contain key data that shouldn't stick around on
10964 * the heap after the SKB is freed. The netlink message header
10965 * is still needed for further processing, so leave it intact.
10966 */
10967 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10968 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10969
10970 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10971 }
4c476991
JB		 10972}
10973
4534de83 10974static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10975 {
10976 .cmd = NL80211_CMD_GET_WIPHY,
10977 .doit = nl80211_get_wiphy,
10978 .dumpit = nl80211_dump_wiphy,
86e8cf98 10979 .done = nl80211_dump_wiphy_done,
55682965
JB		 10980 .policy = nl80211_policy,
10981 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10982 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10983 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10984 },
10985 {
10986 .cmd = NL80211_CMD_SET_WIPHY,
10987 .doit = nl80211_set_wiphy,
10988 .policy = nl80211_policy,
5617c6cd 10989 .flags = GENL_UNS_ADMIN_PERM,
4c476991 10990 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10991 },
10992 {
10993 .cmd = NL80211_CMD_GET_INTERFACE,
10994 .doit = nl80211_get_interface,
10995 .dumpit = nl80211_dump_interface,
10996 .policy = nl80211_policy,
10997 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10998 .internal_flags = NL80211_FLAG_NEED_WDEV |
10999 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11000 },
11001 {
11002 .cmd = NL80211_CMD_SET_INTERFACE,
11003 .doit = nl80211_set_interface,
11004 .policy = nl80211_policy,
5617c6cd 11005 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11006 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11007 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11008 },
11009 {
11010 .cmd = NL80211_CMD_NEW_INTERFACE,
11011 .doit = nl80211_new_interface,
11012 .policy = nl80211_policy,
5617c6cd 11013 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11014 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11015 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11016 },
11017 {
11018 .cmd = NL80211_CMD_DEL_INTERFACE,
11019 .doit = nl80211_del_interface,
11020 .policy = nl80211_policy,
5617c6cd 11021 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11022 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11023 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11024 },
11025 {
11026 .cmd = NL80211_CMD_GET_KEY,
11027 .doit = nl80211_get_key,
11028 .policy = nl80211_policy,
5617c6cd 11029 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11030 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11031 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11032 },
11033 {
11034 .cmd = NL80211_CMD_SET_KEY,
11035 .doit = nl80211_set_key,
11036 .policy = nl80211_policy,
5617c6cd 11037 .flags = GENL_UNS_ADMIN_PERM,
41265714 11038 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11039 NL80211_FLAG_NEED_RTNL |
11040 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11041 },
11042 {
11043 .cmd = NL80211_CMD_NEW_KEY,
11044 .doit = nl80211_new_key,
11045 .policy = nl80211_policy,
5617c6cd 11046 .flags = GENL_UNS_ADMIN_PERM,
41265714 11047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11048 NL80211_FLAG_NEED_RTNL |
11049 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11050 },
11051 {
11052 .cmd = NL80211_CMD_DEL_KEY,
11053 .doit = nl80211_del_key,
11054 .policy = nl80211_policy,
5617c6cd 11055 .flags = GENL_UNS_ADMIN_PERM,
41265714 11056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11057 NL80211_FLAG_NEED_RTNL,
55682965 11058 },
ed1b6cc7
JB		 11059 {
11060 .cmd = NL80211_CMD_SET_BEACON,
11061 .policy = nl80211_policy,
5617c6cd 11062 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11063 .doit = nl80211_set_beacon,
2b5f8b0b 11064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11065 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11066 },
11067 {
8860020e 11068 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11069 .policy = nl80211_policy,
5617c6cd 11070 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11071 .doit = nl80211_start_ap,
2b5f8b0b 11072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11073 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11074 },
11075 {
8860020e 11076 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11077 .policy = nl80211_policy,
5617c6cd 11078 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11079 .doit = nl80211_stop_ap,
2b5f8b0b 11080 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11081 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11082 },
5727ef1b
JB		 11083 {
11084 .cmd = NL80211_CMD_GET_STATION,
11085 .doit = nl80211_get_station,
2ec600d6 11086 .dumpit = nl80211_dump_station,
5727ef1b 11087 .policy = nl80211_policy,
4c476991
JB		 11088 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11089 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11090 },
11091 {
11092 .cmd = NL80211_CMD_SET_STATION,
11093 .doit = nl80211_set_station,
11094 .policy = nl80211_policy,
5617c6cd 11095 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11096 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11097 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11098 },
11099 {
11100 .cmd = NL80211_CMD_NEW_STATION,
11101 .doit = nl80211_new_station,
11102 .policy = nl80211_policy,
5617c6cd 11103 .flags = GENL_UNS_ADMIN_PERM,
41265714 11104 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11105 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11106 },
11107 {
11108 .cmd = NL80211_CMD_DEL_STATION,
11109 .doit = nl80211_del_station,
11110 .policy = nl80211_policy,
5617c6cd 11111 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11112 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11113 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11114 },
11115 {
11116 .cmd = NL80211_CMD_GET_MPATH,
11117 .doit = nl80211_get_mpath,
11118 .dumpit = nl80211_dump_mpath,
11119 .policy = nl80211_policy,
5617c6cd 11120 .flags = GENL_UNS_ADMIN_PERM,
41265714 11121 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11122 NL80211_FLAG_NEED_RTNL,
2ec600d6 11123 },
66be7d2b
HR		 11124 {
11125 .cmd = NL80211_CMD_GET_MPP,
11126 .doit = nl80211_get_mpp,
11127 .dumpit = nl80211_dump_mpp,
11128 .policy = nl80211_policy,
5617c6cd 11129 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11131 NL80211_FLAG_NEED_RTNL,
11132 },
2ec600d6
LCC		 11133 {
11134 .cmd = NL80211_CMD_SET_MPATH,
11135 .doit = nl80211_set_mpath,
11136 .policy = nl80211_policy,
5617c6cd 11137 .flags = GENL_UNS_ADMIN_PERM,
41265714 11138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11139 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11140 },
11141 {
11142 .cmd = NL80211_CMD_NEW_MPATH,
11143 .doit = nl80211_new_mpath,
11144 .policy = nl80211_policy,
5617c6cd 11145 .flags = GENL_UNS_ADMIN_PERM,
41265714 11146 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11147 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11148 },
11149 {
11150 .cmd = NL80211_CMD_DEL_MPATH,
11151 .doit = nl80211_del_mpath,
11152 .policy = nl80211_policy,
5617c6cd 11153 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11154 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11155 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11156 },
11157 {
11158 .cmd = NL80211_CMD_SET_BSS,
11159 .doit = nl80211_set_bss,
11160 .policy = nl80211_policy,
5617c6cd 11161 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11162 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11163 NL80211_FLAG_NEED_RTNL,
b2e1b302 11164 },
f130347c
LR		 11165 {
11166 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11167 .doit = nl80211_get_reg_do,
11168 .dumpit = nl80211_get_reg_dump,
f130347c 11169 .policy = nl80211_policy,
5fe231e8 11170 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11171 /* can be retrieved by unprivileged users */
11172 },
b6863036 11173#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11174 {
11175 .cmd = NL80211_CMD_SET_REG,
11176 .doit = nl80211_set_reg,
11177 .policy = nl80211_policy,
11178 .flags = GENL_ADMIN_PERM,
5fe231e8 11179 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11180 },
b6863036 11181#endif
b2e1b302
LR		 11182 {
11183 .cmd = NL80211_CMD_REQ_SET_REG,
11184 .doit = nl80211_req_set_reg,
11185 .policy = nl80211_policy,
93da9cc1 11186 .flags = GENL_ADMIN_PERM,
11187 },
11188 {
24bdd9f4
JC		 11189 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11190 .doit = nl80211_get_mesh_config,
93da9cc1 11191 .policy = nl80211_policy,
11192 /* can be retrieved by unprivileged users */
2b5f8b0b 11193 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11194 NL80211_FLAG_NEED_RTNL,
93da9cc1 11195 },
11196 {
24bdd9f4
JC		 11197 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11198 .doit = nl80211_update_mesh_config,
93da9cc1 11199 .policy = nl80211_policy,
5617c6cd 11200 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 11201 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11202 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11203 },
2a519311
JB		 11204 {
11205 .cmd = NL80211_CMD_TRIGGER_SCAN,
11206 .doit = nl80211_trigger_scan,
11207 .policy = nl80211_policy,
5617c6cd 11208 .flags = GENL_UNS_ADMIN_PERM,
fd014284 11209 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11210 NL80211_FLAG_NEED_RTNL,
2a519311 11211 },
91d3ab46
VK		 11212 {
11213 .cmd = NL80211_CMD_ABORT_SCAN,
11214 .doit = nl80211_abort_scan,
11215 .policy = nl80211_policy,
5617c6cd 11216 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 11217 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11218 NL80211_FLAG_NEED_RTNL,
11219 },
2a519311
JB		 11220 {
11221 .cmd = NL80211_CMD_GET_SCAN,
11222 .policy = nl80211_policy,
11223 .dumpit = nl80211_dump_scan,
11224 },
807f8a8c
LC		 11225 {
11226 .cmd = NL80211_CMD_START_SCHED_SCAN,
11227 .doit = nl80211_start_sched_scan,
11228 .policy = nl80211_policy,
5617c6cd 11229 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11230 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11231 NL80211_FLAG_NEED_RTNL,
11232 },
11233 {
11234 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11235 .doit = nl80211_stop_sched_scan,
11236 .policy = nl80211_policy,
5617c6cd 11237 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11238 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11239 NL80211_FLAG_NEED_RTNL,
11240 },
636a5d36
JM		 11241 {
11242 .cmd = NL80211_CMD_AUTHENTICATE,
11243 .doit = nl80211_authenticate,
11244 .policy = nl80211_policy,
5617c6cd 11245 .flags = GENL_UNS_ADMIN_PERM,
41265714 11246 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11247 NL80211_FLAG_NEED_RTNL |
11248 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11249 },
11250 {
11251 .cmd = NL80211_CMD_ASSOCIATE,
11252 .doit = nl80211_associate,
11253 .policy = nl80211_policy,
5617c6cd 11254 .flags = GENL_UNS_ADMIN_PERM,
41265714 11255 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11256 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11257 },
11258 {
11259 .cmd = NL80211_CMD_DEAUTHENTICATE,
11260 .doit = nl80211_deauthenticate,
11261 .policy = nl80211_policy,
5617c6cd 11262 .flags = GENL_UNS_ADMIN_PERM,
41265714 11263 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11264 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11265 },
11266 {
11267 .cmd = NL80211_CMD_DISASSOCIATE,
11268 .doit = nl80211_disassociate,
11269 .policy = nl80211_policy,
5617c6cd 11270 .flags = GENL_UNS_ADMIN_PERM,
41265714 11271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11272 NL80211_FLAG_NEED_RTNL,
636a5d36 11273 },
04a773ad
JB		 11274 {
11275 .cmd = NL80211_CMD_JOIN_IBSS,
11276 .doit = nl80211_join_ibss,
11277 .policy = nl80211_policy,
5617c6cd 11278 .flags = GENL_UNS_ADMIN_PERM,
41265714 11279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11280 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11281 },
11282 {
11283 .cmd = NL80211_CMD_LEAVE_IBSS,
11284 .doit = nl80211_leave_ibss,
11285 .policy = nl80211_policy,
5617c6cd 11286 .flags = GENL_UNS_ADMIN_PERM,
41265714 11287 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11288 NL80211_FLAG_NEED_RTNL,
04a773ad 11289 },
aff89a9b
JB		 11290#ifdef CONFIG_NL80211_TESTMODE
11291 {
11292 .cmd = NL80211_CMD_TESTMODE,
11293 .doit = nl80211_testmode_do,
71063f0e 11294 .dumpit = nl80211_testmode_dump,
aff89a9b 11295 .policy = nl80211_policy,
5617c6cd 11296 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11297 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11298 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11299 },
11300#endif
b23aa676
SO		 11301 {
11302 .cmd = NL80211_CMD_CONNECT,
11303 .doit = nl80211_connect,
11304 .policy = nl80211_policy,
5617c6cd 11305 .flags = GENL_UNS_ADMIN_PERM,
41265714 11306 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11307 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11308 },
11309 {
11310 .cmd = NL80211_CMD_DISCONNECT,
11311 .doit = nl80211_disconnect,
11312 .policy = nl80211_policy,
5617c6cd 11313 .flags = GENL_UNS_ADMIN_PERM,
41265714 11314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11315 NL80211_FLAG_NEED_RTNL,
b23aa676 11316 },
463d0183
JB		 11317 {
11318 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11319 .doit = nl80211_wiphy_netns,
11320 .policy = nl80211_policy,
5617c6cd 11321 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11322 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11323 NL80211_FLAG_NEED_RTNL,
463d0183 11324 },
61fa713c
HS		 11325 {
11326 .cmd = NL80211_CMD_GET_SURVEY,
11327 .policy = nl80211_policy,
11328 .dumpit = nl80211_dump_survey,
11329 },
67fbb16b
SO		 11330 {
11331 .cmd = NL80211_CMD_SET_PMKSA,
11332 .doit = nl80211_setdel_pmksa,
11333 .policy = nl80211_policy,
5617c6cd 11334 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11336 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11337 },
11338 {
11339 .cmd = NL80211_CMD_DEL_PMKSA,
11340 .doit = nl80211_setdel_pmksa,
11341 .policy = nl80211_policy,
5617c6cd 11342 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11344 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11345 },
11346 {
11347 .cmd = NL80211_CMD_FLUSH_PMKSA,
11348 .doit = nl80211_flush_pmksa,
11349 .policy = nl80211_policy,
5617c6cd 11350 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11351 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11352 NL80211_FLAG_NEED_RTNL,
67fbb16b 11353 },
9588bbd5
JM		 11354 {
11355 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11356 .doit = nl80211_remain_on_channel,
11357 .policy = nl80211_policy,
5617c6cd 11358 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11359 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11360 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11361 },
11362 {
11363 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11364 .doit = nl80211_cancel_remain_on_channel,
11365 .policy = nl80211_policy,
5617c6cd 11366 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11367 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11368 NL80211_FLAG_NEED_RTNL,
9588bbd5 11369 },
13ae75b1
JM		 11370 {
11371 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11372 .doit = nl80211_set_tx_bitrate_mask,
11373 .policy = nl80211_policy,
5617c6cd 11374 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11375 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11376 NL80211_FLAG_NEED_RTNL,
13ae75b1 11377 },
026331c4 11378 {
2e161f78
JB		 11379 .cmd = NL80211_CMD_REGISTER_FRAME,
11380 .doit = nl80211_register_mgmt,
026331c4 11381 .policy = nl80211_policy,
5617c6cd 11382 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11383 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11384 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11385 },
11386 {
2e161f78
JB		 11387 .cmd = NL80211_CMD_FRAME,
11388 .doit = nl80211_tx_mgmt,
026331c4 11389 .policy = nl80211_policy,
5617c6cd 11390 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11391 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11392 NL80211_FLAG_NEED_RTNL,
11393 },
11394 {
11395 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11396 .doit = nl80211_tx_mgmt_cancel_wait,
11397 .policy = nl80211_policy,
5617c6cd 11398 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11399 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11400 NL80211_FLAG_NEED_RTNL,
026331c4 11401 },
ffb9eb3d
KV		 11402 {
11403 .cmd = NL80211_CMD_SET_POWER_SAVE,
11404 .doit = nl80211_set_power_save,
11405 .policy = nl80211_policy,
5617c6cd 11406 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11407 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11408 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11409 },
11410 {
11411 .cmd = NL80211_CMD_GET_POWER_SAVE,
11412 .doit = nl80211_get_power_save,
11413 .policy = nl80211_policy,
11414 /* can be retrieved by unprivileged users */
4c476991
JB		 11415 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11416 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11417 },
d6dc1a38
JO		 11418 {
11419 .cmd = NL80211_CMD_SET_CQM,
11420 .doit = nl80211_set_cqm,
11421 .policy = nl80211_policy,
5617c6cd 11422 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11423 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11424 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11425 },
f444de05
JB		 11426 {
11427 .cmd = NL80211_CMD_SET_CHANNEL,
11428 .doit = nl80211_set_channel,
11429 .policy = nl80211_policy,
5617c6cd 11430 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11431 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11432 NL80211_FLAG_NEED_RTNL,
f444de05 11433 },
e8347eba
BJ		 11434 {
11435 .cmd = NL80211_CMD_SET_WDS_PEER,
11436 .doit = nl80211_set_wds_peer,
11437 .policy = nl80211_policy,
5617c6cd 11438 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 11439 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11440 NL80211_FLAG_NEED_RTNL,
e8347eba 11441 },
29cbe68c
JB		 11442 {
11443 .cmd = NL80211_CMD_JOIN_MESH,
11444 .doit = nl80211_join_mesh,
11445 .policy = nl80211_policy,
5617c6cd 11446 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11448 NL80211_FLAG_NEED_RTNL,
11449 },
11450 {
11451 .cmd = NL80211_CMD_LEAVE_MESH,
11452 .doit = nl80211_leave_mesh,
11453 .policy = nl80211_policy,
5617c6cd 11454 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11456 NL80211_FLAG_NEED_RTNL,
11457 },
6e0bd6c3
RL		 11458 {
11459 .cmd = NL80211_CMD_JOIN_OCB,
11460 .doit = nl80211_join_ocb,
11461 .policy = nl80211_policy,
5617c6cd 11462 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11463 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11464 NL80211_FLAG_NEED_RTNL,
11465 },
11466 {
11467 .cmd = NL80211_CMD_LEAVE_OCB,
11468 .doit = nl80211_leave_ocb,
11469 .policy = nl80211_policy,
5617c6cd 11470 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11472 NL80211_FLAG_NEED_RTNL,
11473 },
dfb89c56 11474#ifdef CONFIG_PM
ff1b6e69
JB		 11475 {
11476 .cmd = NL80211_CMD_GET_WOWLAN,
11477 .doit = nl80211_get_wowlan,
11478 .policy = nl80211_policy,
11479 /* can be retrieved by unprivileged users */
11480 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11481 NL80211_FLAG_NEED_RTNL,
11482 },
11483 {
11484 .cmd = NL80211_CMD_SET_WOWLAN,
11485 .doit = nl80211_set_wowlan,
11486 .policy = nl80211_policy,
5617c6cd 11487 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 11488 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11489 NL80211_FLAG_NEED_RTNL,
11490 },
dfb89c56 11491#endif
e5497d76
JB		 11492 {
11493 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11494 .doit = nl80211_set_rekey_data,
11495 .policy = nl80211_policy,
5617c6cd 11496 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 11497 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11498 NL80211_FLAG_NEED_RTNL |
11499 NL80211_FLAG_CLEAR_SKB,
e5497d76 11500 },
109086ce
AN		 11501 {
11502 .cmd = NL80211_CMD_TDLS_MGMT,
11503 .doit = nl80211_tdls_mgmt,
11504 .policy = nl80211_policy,
5617c6cd 11505 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11506 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11507 NL80211_FLAG_NEED_RTNL,
11508 },
11509 {
11510 .cmd = NL80211_CMD_TDLS_OPER,
11511 .doit = nl80211_tdls_oper,
11512 .policy = nl80211_policy,
5617c6cd 11513 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11514 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11515 NL80211_FLAG_NEED_RTNL,
11516 },
28946da7
JB		 11517 {
11518 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11519 .doit = nl80211_register_unexpected_frame,
11520 .policy = nl80211_policy,
5617c6cd 11521 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 11522 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11523 NL80211_FLAG_NEED_RTNL,
11524 },
7f6cf311
JB		 11525 {
11526 .cmd = NL80211_CMD_PROBE_CLIENT,
11527 .doit = nl80211_probe_client,
11528 .policy = nl80211_policy,
5617c6cd 11529 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11531 NL80211_FLAG_NEED_RTNL,
11532 },
5e760230
JB		 11533 {
11534 .cmd = NL80211_CMD_REGISTER_BEACONS,
11535 .doit = nl80211_register_beacons,
11536 .policy = nl80211_policy,
5617c6cd 11537 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 11538 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11539 NL80211_FLAG_NEED_RTNL,
11540 },
1d9d9213
SW		 11541 {
11542 .cmd = NL80211_CMD_SET_NOACK_MAP,
11543 .doit = nl80211_set_noack_map,
11544 .policy = nl80211_policy,
5617c6cd 11545 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 11546 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11547 NL80211_FLAG_NEED_RTNL,
11548 },
98104fde
JB		 11549 {
11550 .cmd = NL80211_CMD_START_P2P_DEVICE,
11551 .doit = nl80211_start_p2p_device,
11552 .policy = nl80211_policy,
5617c6cd 11553 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11554 .internal_flags = NL80211_FLAG_NEED_WDEV |
11555 NL80211_FLAG_NEED_RTNL,
11556 },
11557 {
11558 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11559 .doit = nl80211_stop_p2p_device,
11560 .policy = nl80211_policy,
5617c6cd 11561 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11562 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11563 NL80211_FLAG_NEED_RTNL,
11564 },
f4e583c8
AQ		 11565 {
11566 .cmd = NL80211_CMD_SET_MCAST_RATE,
11567 .doit = nl80211_set_mcast_rate,
77765eaf 11568 .policy = nl80211_policy,
5617c6cd 11569 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 11570 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11571 NL80211_FLAG_NEED_RTNL,
11572 },
11573 {
11574 .cmd = NL80211_CMD_SET_MAC_ACL,
11575 .doit = nl80211_set_mac_acl,
f4e583c8 11576 .policy = nl80211_policy,
5617c6cd 11577 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 11578 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11579 NL80211_FLAG_NEED_RTNL,
11580 },
04f39047
SW		 11581 {
11582 .cmd = NL80211_CMD_RADAR_DETECT,
11583 .doit = nl80211_start_radar_detection,
11584 .policy = nl80211_policy,
5617c6cd 11585 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 11586 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11587 NL80211_FLAG_NEED_RTNL,
11588 },
3713b4e3
JB		 11589 {
11590 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11591 .doit = nl80211_get_protocol_features,
11592 .policy = nl80211_policy,
11593 },
355199e0
JM		 11594 {
11595 .cmd = NL80211_CMD_UPDATE_FT_IES,
11596 .doit = nl80211_update_ft_ies,
11597 .policy = nl80211_policy,
5617c6cd 11598 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 11599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11600 NL80211_FLAG_NEED_RTNL,
11601 },
5de17984
AS		 11602 {
11603 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11604 .doit = nl80211_crit_protocol_start,
11605 .policy = nl80211_policy,
5617c6cd 11606 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11607 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11608 NL80211_FLAG_NEED_RTNL,
11609 },
11610 {
11611 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11612 .doit = nl80211_crit_protocol_stop,
11613 .policy = nl80211_policy,
5617c6cd 11614 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11615 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11616 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11617 },
11618 {
11619 .cmd = NL80211_CMD_GET_COALESCE,
11620 .doit = nl80211_get_coalesce,
11621 .policy = nl80211_policy,
11622 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11623 NL80211_FLAG_NEED_RTNL,
11624 },
11625 {
11626 .cmd = NL80211_CMD_SET_COALESCE,
11627 .doit = nl80211_set_coalesce,
11628 .policy = nl80211_policy,
5617c6cd 11629 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 11630 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11631 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11632 },
11633 {
11634 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11635 .doit = nl80211_channel_switch,
11636 .policy = nl80211_policy,
5617c6cd 11637 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 11638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11639 NL80211_FLAG_NEED_RTNL,
11640 },
ad7e718c
JB		 11641 {
11642 .cmd = NL80211_CMD_VENDOR,
11643 .doit = nl80211_vendor_cmd,
7bdbe400 11644 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 11645 .policy = nl80211_policy,
5617c6cd 11646 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 11647 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11648 NL80211_FLAG_NEED_RTNL,
11649 },
fa9ffc74
KP		 11650 {
11651 .cmd = NL80211_CMD_SET_QOS_MAP,
11652 .doit = nl80211_set_qos_map,
11653 .policy = nl80211_policy,
5617c6cd 11654 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 11655 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11656 NL80211_FLAG_NEED_RTNL,
11657 },
960d01ac
JB		 11658 {
11659 .cmd = NL80211_CMD_ADD_TX_TS,
11660 .doit = nl80211_add_tx_ts,
11661 .policy = nl80211_policy,
5617c6cd 11662 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11663 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11664 NL80211_FLAG_NEED_RTNL,
11665 },
11666 {
11667 .cmd = NL80211_CMD_DEL_TX_TS,
11668 .doit = nl80211_del_tx_ts,
11669 .policy = nl80211_policy,
5617c6cd 11670 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11672 NL80211_FLAG_NEED_RTNL,
11673 },
1057d35e
AN		 11674 {
11675 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11676 .doit = nl80211_tdls_channel_switch,
11677 .policy = nl80211_policy,
5617c6cd 11678 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11680 NL80211_FLAG_NEED_RTNL,
11681 },
11682 {
11683 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11684 .doit = nl80211_tdls_cancel_channel_switch,
11685 .policy = nl80211_policy,
5617c6cd 11686 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11687 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11688 NL80211_FLAG_NEED_RTNL,
11689 },
55682965 11690};
9588bbd5 11691
55682965
JB		 11692/* notification functions */
11693
3bb20556
JB		 11694void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11695 enum nl80211_commands cmd)
55682965
JB		 11696{
11697 struct sk_buff *msg;
86e8cf98 11698 struct nl80211_dump_wiphy_state state = {};
55682965 11699
3bb20556
JB		 11700 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11701 cmd != NL80211_CMD_DEL_WIPHY);
11702
fd2120ca 11703 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11704 if (!msg)
11705 return;
11706
3bb20556 11707 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11708 nlmsg_free(msg);
11709 return;
11710 }
11711
68eb5503 11712 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11713 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11714}
11715
362a415d
JB		 11716static int nl80211_add_scan_req(struct sk_buff *msg,
11717 struct cfg80211_registered_device *rdev)
11718{
11719 struct cfg80211_scan_request *req = rdev->scan_req;
11720 struct nlattr *nest;
11721 int i;
11722
11723 if (WARN_ON(!req))
11724 return 0;
11725
11726 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11727 if (!nest)
11728 goto nla_put_failure;
9360ffd1
DM		 11729 for (i = 0; i < req->n_ssids; i++) {
11730 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11731 goto nla_put_failure;
11732 }
362a415d
JB		 11733 nla_nest_end(msg, nest);
11734
11735 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11736 if (!nest)
11737 goto nla_put_failure;
9360ffd1
DM		 11738 for (i = 0; i < req->n_channels; i++) {
11739 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11740 goto nla_put_failure;
11741 }
362a415d
JB		 11742 nla_nest_end(msg, nest);
11743
9360ffd1
DM		 11744 if (req->ie &&
11745 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11746 goto nla_put_failure;
362a415d 11747
ae917c9f
JB		 11748 if (req->flags &&
11749 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11750 goto nla_put_failure;
ed473771 11751
362a415d
JB		 11752 return 0;
11753 nla_put_failure:
11754 return -ENOBUFS;
11755}
11756
a538e2d5
JB		 11757static int nl80211_send_scan_msg(struct sk_buff *msg,
11758 struct cfg80211_registered_device *rdev,
fd014284 11759 struct wireless_dev *wdev,
15e47304 11760 u32 portid, u32 seq, int flags,
a538e2d5 11761 u32 cmd)
2a519311
JB		 11762{
11763 void *hdr;
11764
15e47304 11765 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11766 if (!hdr)
11767 return -1;
11768
9360ffd1 11769 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11770 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11771 wdev->netdev->ifindex)) ||
2dad624e
ND		 11772 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11773 NL80211_ATTR_PAD))
9360ffd1 11774 goto nla_put_failure;
2a519311 11775
362a415d
JB		 11776 /* ignore errors and send incomplete event anyway */
11777 nl80211_add_scan_req(msg, rdev);
2a519311 11778
053c095a
JB		 11779 genlmsg_end(msg, hdr);
11780 return 0;
2a519311
JB		 11781
11782 nla_put_failure:
11783 genlmsg_cancel(msg, hdr);
11784 return -EMSGSIZE;
11785}
11786
807f8a8c
LC		 11787static int
11788nl80211_send_sched_scan_msg(struct sk_buff *msg,
11789 struct cfg80211_registered_device *rdev,
11790 struct net_device *netdev,
15e47304 11791 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11792{
11793 void *hdr;
11794
15e47304 11795 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11796 if (!hdr)
11797 return -1;
11798
9360ffd1
DM		 11799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11800 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11801 goto nla_put_failure;
807f8a8c 11802
053c095a
JB		 11803 genlmsg_end(msg, hdr);
11804 return 0;
807f8a8c
LC		 11805
11806 nla_put_failure:
11807 genlmsg_cancel(msg, hdr);
11808 return -EMSGSIZE;
11809}
11810
a538e2d5 11811void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11812 struct wireless_dev *wdev)
a538e2d5
JB		 11813{
11814 struct sk_buff *msg;
11815
58050fce 11816 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11817 if (!msg)
11818 return;
11819
fd014284 11820 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11821 NL80211_CMD_TRIGGER_SCAN) < 0) {
11822 nlmsg_free(msg);
11823 return;
11824 }
11825
68eb5503 11826 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11827 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11828}
11829
f9d15d16
JB		 11830struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11831 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11832{
11833 struct sk_buff *msg;
11834
fd2120ca 11835 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11836 if (!msg)
f9d15d16 11837 return NULL;
2a519311 11838
fd014284 11839 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11840 aborted ? NL80211_CMD_SCAN_ABORTED :
11841 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11842 nlmsg_free(msg);
f9d15d16 11843 return NULL;
2a519311
JB		 11844 }
11845
f9d15d16 11846 return msg;
2a519311
JB		 11847}
11848
f9d15d16
JB		 11849void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11850 struct sk_buff *msg)
2a519311 11851{
2a519311
JB		 11852 if (!msg)
11853 return;
11854
68eb5503 11855 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11856 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11857}
11858
807f8a8c
LC		 11859void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11860 struct net_device *netdev)
11861{
11862 struct sk_buff *msg;
11863
11864 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11865 if (!msg)
11866 return;
11867
11868 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11869 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11870 nlmsg_free(msg);
11871 return;
11872 }
11873
68eb5503 11874 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11875 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11876}
11877
11878void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11879 struct net_device *netdev, u32 cmd)
11880{
11881 struct sk_buff *msg;
11882
58050fce 11883 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11884 if (!msg)
11885 return;
11886
11887 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11888 nlmsg_free(msg);
11889 return;
11890 }
11891
68eb5503 11892 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11893 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11894}
11895
b0d7aa59
JD		 11896static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11897 struct regulatory_request *request)
73d54c9e 11898{
73d54c9e 11899 /* Userspace can always count this one always being set */
9360ffd1
DM		 11900 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11901 goto nla_put_failure;
11902
11903 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11904 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11905 NL80211_REGDOM_TYPE_WORLD))
11906 goto nla_put_failure;
11907 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11908 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11909 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11910 goto nla_put_failure;
11911 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11912 request->intersect) {
11913 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11914 NL80211_REGDOM_TYPE_INTERSECTION))
11915 goto nla_put_failure;
11916 } else {
11917 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11918 NL80211_REGDOM_TYPE_COUNTRY) ||
11919 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11920 request->alpha2))
11921 goto nla_put_failure;
11922 }
11923
ad30ca2c
AN		 11924 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11925 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11926
11927 if (wiphy &&
11928 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11929 goto nla_put_failure;
1bdd716c
AN		 11930
11931 if (wiphy &&
11932 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11933 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11934 goto nla_put_failure;
ad30ca2c 11935 }
73d54c9e 11936
b0d7aa59
JD		 11937 return true;
11938
11939nla_put_failure:
11940 return false;
11941}
11942
11943/*
11944 * This can happen on global regulatory changes or device specific settings
11945 * based on custom regulatory domains.
11946 */
11947void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11948 struct regulatory_request *request)
11949{
11950 struct sk_buff *msg;
11951 void *hdr;
11952
11953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11954 if (!msg)
11955 return;
11956
11957 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11958 if (!hdr) {
11959 nlmsg_free(msg);
11960 return;
11961 }
11962
11963 if (nl80211_reg_change_event_fill(msg, request) == false)
11964 goto nla_put_failure;
11965
3b7b72ee 11966 genlmsg_end(msg, hdr);
73d54c9e 11967
bc43b28c 11968 rcu_read_lock();
68eb5503 11969 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11970 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11971 rcu_read_unlock();
73d54c9e
LR		 11972
11973 return;
11974
11975nla_put_failure:
11976 genlmsg_cancel(msg, hdr);
11977 nlmsg_free(msg);
11978}
11979
6039f6d2
JM		 11980static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11981 struct net_device *netdev,
11982 const u8 *buf, size_t len,
b0b6aa2c
EP		 11983 enum nl80211_commands cmd, gfp_t gfp,
11984 int uapsd_queues)
6039f6d2
JM		 11985{
11986 struct sk_buff *msg;
11987 void *hdr;
11988
e6d6e342 11989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11990 if (!msg)
11991 return;
11992
11993 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11994 if (!hdr) {
11995 nlmsg_free(msg);
11996 return;
11997 }
11998
9360ffd1
DM		 11999 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12000 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12001 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12002 goto nla_put_failure;
6039f6d2 12003
b0b6aa2c
EP		 12004 if (uapsd_queues >= 0) {
12005 struct nlattr *nla_wmm =
12006 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12007 if (!nla_wmm)
12008 goto nla_put_failure;
12009
12010 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12011 uapsd_queues))
12012 goto nla_put_failure;
12013
12014 nla_nest_end(msg, nla_wmm);
12015 }
12016
3b7b72ee 12017 genlmsg_end(msg, hdr);
6039f6d2 12018
68eb5503 12019 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12020 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12021 return;
12022
12023 nla_put_failure:
12024 genlmsg_cancel(msg, hdr);
12025 nlmsg_free(msg);
12026}
12027
12028void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12029 struct net_device *netdev, const u8 *buf,
12030 size_t len, gfp_t gfp)
6039f6d2
JM		 12031{
12032 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12033 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12034}
12035
12036void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12037 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12038 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12039{
e6d6e342 12040 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12041 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12042}
12043
53b46b84 12044void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12045 struct net_device *netdev, const u8 *buf,
12046 size_t len, gfp_t gfp)
6039f6d2
JM		 12047{
12048 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12049 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12050}
12051
53b46b84
JM		 12052void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12053 struct net_device *netdev, const u8 *buf,
e6d6e342 12054 size_t len, gfp_t gfp)
6039f6d2
JM		 12055{
12056 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12057 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12058}
12059
6ff57cf8
JB		 12060void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12061 size_t len)
cf4e594e 12062{
947add36
JB		 12063 struct wireless_dev *wdev = dev->ieee80211_ptr;
12064 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12065 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12066 const struct ieee80211_mgmt *mgmt = (void *)buf;
12067 u32 cmd;
947add36 12068
6ff57cf8
JB		 12069 if (WARN_ON(len < 2))
12070 return;
cf4e594e 12071
6ff57cf8
JB		 12072 if (ieee80211_is_deauth(mgmt->frame_control))
12073 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12074 else
12075 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12076
6ff57cf8 12077 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12078 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12079}
6ff57cf8 12080EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12081
1b06bb40
LR		 12082static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12083 struct net_device *netdev, int cmd,
e6d6e342 12084 const u8 *addr, gfp_t gfp)
1965c853
JM		 12085{
12086 struct sk_buff *msg;
12087 void *hdr;
12088
e6d6e342 12089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12090 if (!msg)
12091 return;
12092
12093 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12094 if (!hdr) {
12095 nlmsg_free(msg);
12096 return;
12097 }
12098
9360ffd1
DM		 12099 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12100 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12101 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12102 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12103 goto nla_put_failure;
1965c853 12104
3b7b72ee 12105 genlmsg_end(msg, hdr);
1965c853 12106
68eb5503 12107 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12108 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12109 return;
12110
12111 nla_put_failure:
12112 genlmsg_cancel(msg, hdr);
12113 nlmsg_free(msg);
12114}
12115
12116void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12117 struct net_device *netdev, const u8 *addr,
12118 gfp_t gfp)
1965c853
JM		 12119{
12120 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12121 addr, gfp);
1965c853
JM		 12122}
12123
12124void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12125 struct net_device *netdev, const u8 *addr,
12126 gfp_t gfp)
1965c853 12127{
e6d6e342
JB		 12128 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12129 addr, gfp);
1965c853
JM		 12130}
12131
b23aa676
SO		 12132void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12133 struct net_device *netdev, const u8 *bssid,
12134 const u8 *req_ie, size_t req_ie_len,
12135 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 12136 int status, gfp_t gfp)
b23aa676
SO		 12137{
12138 struct sk_buff *msg;
12139 void *hdr;
12140
58050fce 12141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12142 if (!msg)
12143 return;
12144
12145 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12146 if (!hdr) {
12147 nlmsg_free(msg);
12148 return;
12149 }
12150
9360ffd1
DM		 12151 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12152 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12153 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 12154 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12155 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12156 status) ||
12157 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 12158 (req_ie &&
12159 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12160 (resp_ie &&
12161 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12162 goto nla_put_failure;
b23aa676 12163
3b7b72ee 12164 genlmsg_end(msg, hdr);
b23aa676 12165
68eb5503 12166 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12167 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12168 return;
12169
12170 nla_put_failure:
12171 genlmsg_cancel(msg, hdr);
12172 nlmsg_free(msg);
12173
12174}
12175
12176void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12177 struct net_device *netdev, const u8 *bssid,
12178 const u8 *req_ie, size_t req_ie_len,
12179 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12180{
12181 struct sk_buff *msg;
12182 void *hdr;
12183
58050fce 12184 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12185 if (!msg)
12186 return;
12187
12188 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12189 if (!hdr) {
12190 nlmsg_free(msg);
12191 return;
12192 }
12193
9360ffd1
DM		 12194 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12195 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12196 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12197 (req_ie &&
12198 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12199 (resp_ie &&
12200 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12201 goto nla_put_failure;
b23aa676 12202
3b7b72ee 12203 genlmsg_end(msg, hdr);
b23aa676 12204
68eb5503 12205 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12206 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12207 return;
12208
12209 nla_put_failure:
12210 genlmsg_cancel(msg, hdr);
12211 nlmsg_free(msg);
12212
12213}
12214
12215void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12216 struct net_device *netdev, u16 reason,
667503dd 12217 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12218{
12219 struct sk_buff *msg;
12220 void *hdr;
12221
58050fce 12222 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12223 if (!msg)
12224 return;
12225
12226 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12227 if (!hdr) {
12228 nlmsg_free(msg);
12229 return;
12230 }
12231
9360ffd1
DM		 12232 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12233 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12234 (from_ap && reason &&
12235 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12236 (from_ap &&
12237 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12238 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12239 goto nla_put_failure;
b23aa676 12240
3b7b72ee 12241 genlmsg_end(msg, hdr);
b23aa676 12242
68eb5503 12243 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12244 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12245 return;
12246
12247 nla_put_failure:
12248 genlmsg_cancel(msg, hdr);
12249 nlmsg_free(msg);
12250
12251}
12252
04a773ad
JB		 12253void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12254 struct net_device *netdev, const u8 *bssid,
12255 gfp_t gfp)
12256{
12257 struct sk_buff *msg;
12258 void *hdr;
12259
fd2120ca 12260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12261 if (!msg)
12262 return;
12263
12264 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12265 if (!hdr) {
12266 nlmsg_free(msg);
12267 return;
12268 }
12269
9360ffd1
DM		 12270 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12271 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12272 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12273 goto nla_put_failure;
04a773ad 12274
3b7b72ee 12275 genlmsg_end(msg, hdr);
04a773ad 12276
68eb5503 12277 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12278 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12279 return;
12280
12281 nla_put_failure:
12282 genlmsg_cancel(msg, hdr);
12283 nlmsg_free(msg);
12284}
12285
947add36
JB		 12286void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12287 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12288{
947add36 12289 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12290 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12291 struct sk_buff *msg;
12292 void *hdr;
12293
947add36
JB		 12294 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12295 return;
12296
12297 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12298
c93b5e71
JC		 12299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12300 if (!msg)
12301 return;
12302
12303 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12304 if (!hdr) {
12305 nlmsg_free(msg);
12306 return;
12307 }
12308
9360ffd1 12309 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12310 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12311 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12312 (ie_len && ie &&
12313 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12314 goto nla_put_failure;
c93b5e71 12315
3b7b72ee 12316 genlmsg_end(msg, hdr);
c93b5e71 12317
68eb5503 12318 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12319 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12320 return;
12321
12322 nla_put_failure:
12323 genlmsg_cancel(msg, hdr);
12324 nlmsg_free(msg);
12325}
947add36 12326EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12327
a3b8b056
JM		 12328void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12329 struct net_device *netdev, const u8 *addr,
12330 enum nl80211_key_type key_type, int key_id,
e6d6e342 12331 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12332{
12333 struct sk_buff *msg;
12334 void *hdr;
12335
e6d6e342 12336 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12337 if (!msg)
12338 return;
12339
12340 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12341 if (!hdr) {
12342 nlmsg_free(msg);
12343 return;
12344 }
12345
9360ffd1
DM		 12346 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12347 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12348 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12349 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12350 (key_id != -1 &&
12351 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12352 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12353 goto nla_put_failure;
a3b8b056 12354
3b7b72ee 12355 genlmsg_end(msg, hdr);
a3b8b056 12356
68eb5503 12357 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12358 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12359 return;
12360
12361 nla_put_failure:
12362 genlmsg_cancel(msg, hdr);
12363 nlmsg_free(msg);
12364}
12365
6bad8766
LR		 12366void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12367 struct ieee80211_channel *channel_before,
12368 struct ieee80211_channel *channel_after)
12369{
12370 struct sk_buff *msg;
12371 void *hdr;
12372 struct nlattr *nl_freq;
12373
fd2120ca 12374 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12375 if (!msg)
12376 return;
12377
12378 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12379 if (!hdr) {
12380 nlmsg_free(msg);
12381 return;
12382 }
12383
12384 /*
12385 * Since we are applying the beacon hint to a wiphy we know its
12386 * wiphy_idx is valid
12387 */
9360ffd1
DM		 12388 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12389 goto nla_put_failure;
6bad8766
LR		 12390
12391 /* Before */
12392 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12393 if (!nl_freq)
12394 goto nla_put_failure;
cdc89b97 12395 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12396 goto nla_put_failure;
12397 nla_nest_end(msg, nl_freq);
12398
12399 /* After */
12400 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12401 if (!nl_freq)
12402 goto nla_put_failure;
cdc89b97 12403 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12404 goto nla_put_failure;
12405 nla_nest_end(msg, nl_freq);
12406
3b7b72ee 12407 genlmsg_end(msg, hdr);
6bad8766 12408
463d0183 12409 rcu_read_lock();
68eb5503 12410 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12411 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12412 rcu_read_unlock();
6bad8766
LR		 12413
12414 return;
12415
12416nla_put_failure:
12417 genlmsg_cancel(msg, hdr);
12418 nlmsg_free(msg);
12419}
12420
9588bbd5
JM		 12421static void nl80211_send_remain_on_chan_event(
12422 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12423 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12424 struct ieee80211_channel *chan,
9588bbd5
JM		 12425 unsigned int duration, gfp_t gfp)
12426{
12427 struct sk_buff *msg;
12428 void *hdr;
12429
12430 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12431 if (!msg)
12432 return;
12433
12434 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12435 if (!hdr) {
12436 nlmsg_free(msg);
12437 return;
12438 }
12439
9360ffd1 12440 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12441 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12442 wdev->netdev->ifindex)) ||
2dad624e
ND		 12443 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12444 NL80211_ATTR_PAD) ||
9360ffd1 12445 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12446 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12447 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 12448 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12449 NL80211_ATTR_PAD))
9360ffd1 12450 goto nla_put_failure;
9588bbd5 12451
9360ffd1
DM		 12452 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12453 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12454 goto nla_put_failure;
9588bbd5 12455
3b7b72ee 12456 genlmsg_end(msg, hdr);
9588bbd5 12457
68eb5503 12458 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12459 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12460 return;
12461
12462 nla_put_failure:
12463 genlmsg_cancel(msg, hdr);
12464 nlmsg_free(msg);
12465}
12466
947add36
JB		 12467void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12468 struct ieee80211_channel *chan,
12469 unsigned int duration, gfp_t gfp)
9588bbd5 12470{
947add36 12471 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12472 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12473
12474 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12475 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12476 rdev, wdev, cookie, chan,
42d97a59 12477 duration, gfp);
9588bbd5 12478}
947add36 12479EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12480
947add36
JB		 12481void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12482 struct ieee80211_channel *chan,
12483 gfp_t gfp)
9588bbd5 12484{
947add36 12485 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12486 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12487
12488 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12489 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12490 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12491}
947add36 12492EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12493
947add36
JB		 12494void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12495 struct station_info *sinfo, gfp_t gfp)
98b62183 12496{
947add36 12497 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12498 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12499 struct sk_buff *msg;
12500
947add36
JB		 12501 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12502
58050fce 12503 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12504 if (!msg)
12505 return;
12506
cf5ead82 12507 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12508 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12509 nlmsg_free(msg);
12510 return;
12511 }
12512
68eb5503 12513 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12514 NL80211_MCGRP_MLME, gfp);
98b62183 12515}
947add36 12516EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12517
cf5ead82
JB		 12518void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12519 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12520{
947add36 12521 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12522 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12523 struct sk_buff *msg;
cf5ead82
JB		 12524 struct station_info empty_sinfo = {};
12525
12526 if (!sinfo)
12527 sinfo = &empty_sinfo;
ec15e68b 12528
947add36
JB		 12529 trace_cfg80211_del_sta(dev, mac_addr);
12530
58050fce 12531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12532 if (!msg)
12533 return;
12534
cf5ead82 12535 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12536 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12537 nlmsg_free(msg);
12538 return;
12539 }
12540
68eb5503 12541 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12542 NL80211_MCGRP_MLME, gfp);
ec15e68b 12543}
cf5ead82 12544EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12545
947add36
JB		 12546void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12547 enum nl80211_connect_failed_reason reason,
12548 gfp_t gfp)
ed44a951 12549{
947add36 12550 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12551 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12552 struct sk_buff *msg;
12553 void *hdr;
12554
12555 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12556 if (!msg)
12557 return;
12558
12559 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12560 if (!hdr) {
12561 nlmsg_free(msg);
12562 return;
12563 }
12564
12565 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12566 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12567 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12568 goto nla_put_failure;
12569
12570 genlmsg_end(msg, hdr);
12571
68eb5503 12572 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12573 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12574 return;
12575
12576 nla_put_failure:
12577 genlmsg_cancel(msg, hdr);
12578 nlmsg_free(msg);
12579}
947add36 12580EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12581
b92ab5d8
JB		 12582static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12583 const u8 *addr, gfp_t gfp)
28946da7
JB		 12584{
12585 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12586 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12587 struct sk_buff *msg;
12588 void *hdr;
15e47304 12589 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12590
15e47304 12591 if (!nlportid)
28946da7
JB		 12592 return false;
12593
12594 msg = nlmsg_new(100, gfp);
12595 if (!msg)
12596 return true;
12597
b92ab5d8 12598 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12599 if (!hdr) {
12600 nlmsg_free(msg);
12601 return true;
12602 }
12603
9360ffd1
DM		 12604 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12605 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12606 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12607 goto nla_put_failure;
28946da7 12608
9c90a9f6 12609 genlmsg_end(msg, hdr);
15e47304 12610 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12611 return true;
12612
12613 nla_put_failure:
12614 genlmsg_cancel(msg, hdr);
12615 nlmsg_free(msg);
12616 return true;
12617}
12618
947add36
JB		 12619bool cfg80211_rx_spurious_frame(struct net_device *dev,
12620 const u8 *addr, gfp_t gfp)
b92ab5d8 12621{
947add36
JB		 12622 struct wireless_dev *wdev = dev->ieee80211_ptr;
12623 bool ret;
12624
12625 trace_cfg80211_rx_spurious_frame(dev, addr);
12626
12627 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12628 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12629 trace_cfg80211_return_bool(false);
12630 return false;
12631 }
12632 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12633 addr, gfp);
12634 trace_cfg80211_return_bool(ret);
12635 return ret;
b92ab5d8 12636}
947add36 12637EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12638
947add36
JB		 12639bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12640 const u8 *addr, gfp_t gfp)
b92ab5d8 12641{
947add36
JB		 12642 struct wireless_dev *wdev = dev->ieee80211_ptr;
12643 bool ret;
12644
12645 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12646
12647 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12648 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12649 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12650 trace_cfg80211_return_bool(false);
12651 return false;
12652 }
12653 ret = __nl80211_unexpected_frame(dev,
12654 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12655 addr, gfp);
12656 trace_cfg80211_return_bool(ret);
12657 return ret;
b92ab5d8 12658}
947add36 12659EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12660
2e161f78 12661int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12662 struct wireless_dev *wdev, u32 nlportid,
804483e9 12663 int freq, int sig_dbm,
19504cf5 12664 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12665{
71bbc994 12666 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12667 struct sk_buff *msg;
12668 void *hdr;
026331c4
JM		 12669
12670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12671 if (!msg)
12672 return -ENOMEM;
12673
2e161f78 12674 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12675 if (!hdr) {
12676 nlmsg_free(msg);
12677 return -ENOMEM;
12678 }
12679
9360ffd1 12680 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12681 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12682 netdev->ifindex)) ||
2dad624e
ND		 12683 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12684 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12685 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12686 (sig_dbm &&
12687 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12688 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12689 (flags &&
12690 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12691 goto nla_put_failure;
026331c4 12692
3b7b72ee 12693 genlmsg_end(msg, hdr);
026331c4 12694
15e47304 12695 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12696
12697 nla_put_failure:
12698 genlmsg_cancel(msg, hdr);
12699 nlmsg_free(msg);
12700 return -ENOBUFS;
12701}
12702
947add36
JB		 12703void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12704 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12705{
947add36 12706 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12707 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12708 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12709 struct sk_buff *msg;
12710 void *hdr;
12711
947add36
JB		 12712 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12713
026331c4
JM		 12714 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12715 if (!msg)
12716 return;
12717
2e161f78 12718 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12719 if (!hdr) {
12720 nlmsg_free(msg);
12721 return;
12722 }
12723
9360ffd1 12724 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12725 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12726 netdev->ifindex)) ||
2dad624e
ND		 12727 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12728 NL80211_ATTR_PAD) ||
9360ffd1 12729 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 12730 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12731 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12732 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12733 goto nla_put_failure;
026331c4 12734
3b7b72ee 12735 genlmsg_end(msg, hdr);
026331c4 12736
68eb5503 12737 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12738 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12739 return;
12740
12741 nla_put_failure:
12742 genlmsg_cancel(msg, hdr);
12743 nlmsg_free(msg);
12744}
947add36 12745EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12746
5b97f49d
JB		 12747static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12748 const char *mac, gfp_t gfp)
d6dc1a38 12749{
947add36 12750 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12751 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12752 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12753 void **cb;
947add36 12754
d6dc1a38 12755 if (!msg)
5b97f49d 12756 return NULL;
d6dc1a38 12757
5b97f49d
JB		 12758 cb = (void **)msg->cb;
12759
12760 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12761 if (!cb[0]) {
d6dc1a38 12762 nlmsg_free(msg);
5b97f49d 12763 return NULL;
d6dc1a38
JO		 12764 }
12765
9360ffd1 12766 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12767 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12768 goto nla_put_failure;
d6dc1a38 12769
5b97f49d 12770 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12771 goto nla_put_failure;
12772
5b97f49d
JB		 12773 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12774 if (!cb[1])
9360ffd1 12775 goto nla_put_failure;
d6dc1a38 12776
5b97f49d 12777 cb[2] = rdev;
d6dc1a38 12778
5b97f49d
JB		 12779 return msg;
12780 nla_put_failure:
12781 nlmsg_free(msg);
12782 return NULL;
12783}
12784
12785static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12786{
12787 void **cb = (void **)msg->cb;
12788 struct cfg80211_registered_device *rdev = cb[2];
12789
12790 nla_nest_end(msg, cb[1]);
12791 genlmsg_end(msg, cb[0]);
12792
12793 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12794
68eb5503 12795 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12796 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12797}
12798
12799void cfg80211_cqm_rssi_notify(struct net_device *dev,
12800 enum nl80211_cqm_rssi_threshold_event rssi_event,
12801 gfp_t gfp)
12802{
12803 struct sk_buff *msg;
12804
12805 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12806
98f03342
JB		 12807 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12808 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12809 return;
12810
5b97f49d
JB		 12811 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12812 if (!msg)
12813 return;
12814
12815 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12816 rssi_event))
12817 goto nla_put_failure;
12818
12819 cfg80211_send_cqm(msg, gfp);
12820
d6dc1a38
JO		 12821 return;
12822
12823 nla_put_failure:
d6dc1a38
JO		 12824 nlmsg_free(msg);
12825}
947add36 12826EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12827
5b97f49d
JB		 12828void cfg80211_cqm_txe_notify(struct net_device *dev,
12829 const u8 *peer, u32 num_packets,
12830 u32 rate, u32 intvl, gfp_t gfp)
12831{
12832 struct sk_buff *msg;
12833
12834 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12835 if (!msg)
12836 return;
12837
12838 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12839 goto nla_put_failure;
12840
12841 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12842 goto nla_put_failure;
12843
12844 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12845 goto nla_put_failure;
12846
12847 cfg80211_send_cqm(msg, gfp);
12848 return;
12849
12850 nla_put_failure:
12851 nlmsg_free(msg);
12852}
12853EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12854
12855void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12856 const u8 *peer, u32 num_packets, gfp_t gfp)
12857{
12858 struct sk_buff *msg;
12859
12860 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12861
12862 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12863 if (!msg)
12864 return;
12865
12866 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12867 goto nla_put_failure;
12868
12869 cfg80211_send_cqm(msg, gfp);
12870 return;
12871
12872 nla_put_failure:
12873 nlmsg_free(msg);
12874}
12875EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12876
98f03342
JB		 12877void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12878{
12879 struct sk_buff *msg;
12880
12881 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12882 if (!msg)
12883 return;
12884
12885 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12886 goto nla_put_failure;
12887
12888 cfg80211_send_cqm(msg, gfp);
12889 return;
12890
12891 nla_put_failure:
12892 nlmsg_free(msg);
12893}
12894EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12895
947add36
JB		 12896static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12897 struct net_device *netdev, const u8 *bssid,
12898 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12899{
12900 struct sk_buff *msg;
12901 struct nlattr *rekey_attr;
12902 void *hdr;
12903
58050fce 12904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12905 if (!msg)
12906 return;
12907
12908 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12909 if (!hdr) {
12910 nlmsg_free(msg);
12911 return;
12912 }
12913
9360ffd1
DM		 12914 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12915 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12916 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12917 goto nla_put_failure;
e5497d76
JB		 12918
12919 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12920 if (!rekey_attr)
12921 goto nla_put_failure;
12922
9360ffd1
DM		 12923 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12924 NL80211_REPLAY_CTR_LEN, replay_ctr))
12925 goto nla_put_failure;
e5497d76
JB		 12926
12927 nla_nest_end(msg, rekey_attr);
12928
3b7b72ee 12929 genlmsg_end(msg, hdr);
e5497d76 12930
68eb5503 12931 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12932 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12933 return;
12934
12935 nla_put_failure:
12936 genlmsg_cancel(msg, hdr);
12937 nlmsg_free(msg);
12938}
12939
947add36
JB		 12940void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12941 const u8 *replay_ctr, gfp_t gfp)
12942{
12943 struct wireless_dev *wdev = dev->ieee80211_ptr;
12944 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12945 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12946
12947 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12948 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12949}
12950EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12951
12952static void
12953nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12954 struct net_device *netdev, int index,
12955 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12956{
12957 struct sk_buff *msg;
12958 struct nlattr *attr;
12959 void *hdr;
12960
58050fce 12961 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12962 if (!msg)
12963 return;
12964
12965 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12966 if (!hdr) {
12967 nlmsg_free(msg);
12968 return;
12969 }
12970
9360ffd1
DM		 12971 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12972 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12973 goto nla_put_failure;
c9df56b4
JM		 12974
12975 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12976 if (!attr)
12977 goto nla_put_failure;
12978
9360ffd1
DM		 12979 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12980 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12981 (preauth &&
12982 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12983 goto nla_put_failure;
c9df56b4
JM		 12984
12985 nla_nest_end(msg, attr);
12986
3b7b72ee 12987 genlmsg_end(msg, hdr);
c9df56b4 12988
68eb5503 12989 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12990 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12991 return;
12992
12993 nla_put_failure:
12994 genlmsg_cancel(msg, hdr);
12995 nlmsg_free(msg);
12996}
12997
947add36
JB		 12998void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12999 const u8 *bssid, bool preauth, gfp_t gfp)
13000{
13001 struct wireless_dev *wdev = dev->ieee80211_ptr;
13002 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13003 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13004
13005 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13006 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13007}
13008EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13009
13010static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13011 struct net_device *netdev,
13012 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13013 gfp_t gfp,
13014 enum nl80211_commands notif,
13015 u8 count)
5314526b
TP		 13016{
13017 struct sk_buff *msg;
13018 void *hdr;
13019
58050fce 13020 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13021 if (!msg)
13022 return;
13023
f8d7552e 13024 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13025 if (!hdr) {
13026 nlmsg_free(msg);
13027 return;
13028 }
13029
683b6d3b
JB		 13030 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13031 goto nla_put_failure;
13032
13033 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13034 goto nla_put_failure;
5314526b 13035
f8d7552e
LC		 13036 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13037 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13038 goto nla_put_failure;
13039
5314526b
TP		 13040 genlmsg_end(msg, hdr);
13041
68eb5503 13042 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13043 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13044 return;
13045
13046 nla_put_failure:
13047 genlmsg_cancel(msg, hdr);
13048 nlmsg_free(msg);
13049}
13050
947add36
JB		 13051void cfg80211_ch_switch_notify(struct net_device *dev,
13052 struct cfg80211_chan_def *chandef)
84f10708 13053{
947add36
JB		 13054 struct wireless_dev *wdev = dev->ieee80211_ptr;
13055 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13056 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13057
e487eaeb 13058 ASSERT_WDEV_LOCK(wdev);
947add36 13059
e487eaeb 13060 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13061
9e0e2961 13062 wdev->chandef = *chandef;
96f55f12 13063 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13064 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13065 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13066}
13067EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13068
f8d7552e
LC		 13069void cfg80211_ch_switch_started_notify(struct net_device *dev,
13070 struct cfg80211_chan_def *chandef,
13071 u8 count)
13072{
13073 struct wireless_dev *wdev = dev->ieee80211_ptr;
13074 struct wiphy *wiphy = wdev->wiphy;
13075 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13076
13077 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13078
13079 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13080 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13081}
13082EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13083
04f39047
SW		 13084void
13085nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13086 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13087 enum nl80211_radar_event event,
13088 struct net_device *netdev, gfp_t gfp)
13089{
13090 struct sk_buff *msg;
13091 void *hdr;
13092
13093 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13094 if (!msg)
13095 return;
13096
13097 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13098 if (!hdr) {
13099 nlmsg_free(msg);
13100 return;
13101 }
13102
13103 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13104 goto nla_put_failure;
13105
13106 /* NOP and radar events don't need a netdev parameter */
13107 if (netdev) {
13108 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13109
13110 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 13111 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13112 NL80211_ATTR_PAD))
04f39047
SW		 13113 goto nla_put_failure;
13114 }
13115
13116 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13117 goto nla_put_failure;
13118
13119 if (nl80211_send_chandef(msg, chandef))
13120 goto nla_put_failure;
13121
9c90a9f6 13122 genlmsg_end(msg, hdr);
04f39047 13123
68eb5503 13124 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13125 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13126 return;
13127
13128 nla_put_failure:
13129 genlmsg_cancel(msg, hdr);
13130 nlmsg_free(msg);
13131}
13132
7f6cf311
JB		 13133void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13134 u64 cookie, bool acked, gfp_t gfp)
13135{
13136 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13137 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13138 struct sk_buff *msg;
13139 void *hdr;
7f6cf311 13140
4ee3e063
BL		 13141 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13142
58050fce 13143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13144
7f6cf311
JB		 13145 if (!msg)
13146 return;
13147
13148 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13149 if (!hdr) {
13150 nlmsg_free(msg);
13151 return;
13152 }
13153
9360ffd1
DM		 13154 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13155 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13156 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 13157 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13158 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13159 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13160 goto nla_put_failure;
7f6cf311 13161
9c90a9f6 13162 genlmsg_end(msg, hdr);
7f6cf311 13163
68eb5503 13164 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13165 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13166 return;
13167
13168 nla_put_failure:
13169 genlmsg_cancel(msg, hdr);
13170 nlmsg_free(msg);
13171}
13172EXPORT_SYMBOL(cfg80211_probe_status);
13173
5e760230
JB		 13174void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13175 const u8 *frame, size_t len,
37c73b5f 13176 int freq, int sig_dbm)
5e760230 13177{
f26cbf40 13178 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13179 struct sk_buff *msg;
13180 void *hdr;
37c73b5f 13181 struct cfg80211_beacon_registration *reg;
5e760230 13182
4ee3e063
BL		 13183 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13184
37c73b5f
BG		 13185 spin_lock_bh(&rdev->beacon_registrations_lock);
13186 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13187 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13188 if (!msg) {
13189 spin_unlock_bh(&rdev->beacon_registrations_lock);
13190 return;
13191 }
5e760230 13192
37c73b5f
BG		 13193 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13194 if (!hdr)
13195 goto nla_put_failure;
5e760230 13196
37c73b5f
BG		 13197 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13198 (freq &&
13199 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13200 (sig_dbm &&
13201 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13202 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13203 goto nla_put_failure;
5e760230 13204
37c73b5f 13205 genlmsg_end(msg, hdr);
5e760230 13206
37c73b5f
BG		 13207 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13208 }
13209 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13210 return;
13211
13212 nla_put_failure:
37c73b5f
BG		 13213 spin_unlock_bh(&rdev->beacon_registrations_lock);
13214 if (hdr)
13215 genlmsg_cancel(msg, hdr);
5e760230
JB		 13216 nlmsg_free(msg);
13217}
13218EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13219
cd8f7cb4 13220#ifdef CONFIG_PM
8cd4d456
LC		 13221static int cfg80211_net_detect_results(struct sk_buff *msg,
13222 struct cfg80211_wowlan_wakeup *wakeup)
13223{
13224 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13225 struct nlattr *nl_results, *nl_match, *nl_freqs;
13226 int i, j;
13227
13228 nl_results = nla_nest_start(
13229 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13230 if (!nl_results)
13231 return -EMSGSIZE;
13232
13233 for (i = 0; i < nd->n_matches; i++) {
13234 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13235
13236 nl_match = nla_nest_start(msg, i);
13237 if (!nl_match)
13238 break;
13239
13240 /* The SSID attribute is optional in nl80211, but for
13241 * simplicity reasons it's always present in the
13242 * cfg80211 structure. If a driver can't pass the
13243 * SSID, that needs to be changed. A zero length SSID
13244 * is still a valid SSID (wildcard), so it cannot be
13245 * used for this purpose.
13246 */
13247 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13248 match->ssid.ssid)) {
13249 nla_nest_cancel(msg, nl_match);
13250 goto out;
13251 }
13252
13253 if (match->n_channels) {
13254 nl_freqs = nla_nest_start(
13255 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13256 if (!nl_freqs) {
13257 nla_nest_cancel(msg, nl_match);
13258 goto out;
13259 }
13260
13261 for (j = 0; j < match->n_channels; j++) {
5528fae8 13262 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13263 nla_nest_cancel(msg, nl_freqs);
13264 nla_nest_cancel(msg, nl_match);
13265 goto out;
13266 }
13267 }
13268
13269 nla_nest_end(msg, nl_freqs);
13270 }
13271
13272 nla_nest_end(msg, nl_match);
13273 }
13274
13275out:
13276 nla_nest_end(msg, nl_results);
13277 return 0;
13278}
13279
cd8f7cb4
JB		 13280void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13281 struct cfg80211_wowlan_wakeup *wakeup,
13282 gfp_t gfp)
13283{
f26cbf40 13284 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13285 struct sk_buff *msg;
13286 void *hdr;
9c90a9f6 13287 int size = 200;
cd8f7cb4
JB		 13288
13289 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13290
13291 if (wakeup)
13292 size += wakeup->packet_present_len;
13293
13294 msg = nlmsg_new(size, gfp);
13295 if (!msg)
13296 return;
13297
13298 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13299 if (!hdr)
13300 goto free_msg;
13301
13302 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13303 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13304 NL80211_ATTR_PAD))
cd8f7cb4
JB		 13305 goto free_msg;
13306
13307 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13308 wdev->netdev->ifindex))
13309 goto free_msg;
13310
13311 if (wakeup) {
13312 struct nlattr *reasons;
13313
13314 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13315 if (!reasons)
13316 goto free_msg;
cd8f7cb4
JB		 13317
13318 if (wakeup->disconnect &&
13319 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13320 goto free_msg;
13321 if (wakeup->magic_pkt &&
13322 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13323 goto free_msg;
13324 if (wakeup->gtk_rekey_failure &&
13325 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13326 goto free_msg;
13327 if (wakeup->eap_identity_req &&
13328 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13329 goto free_msg;
13330 if (wakeup->four_way_handshake &&
13331 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13332 goto free_msg;
13333 if (wakeup->rfkill_release &&
13334 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13335 goto free_msg;
13336
13337 if (wakeup->pattern_idx >= 0 &&
13338 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13339 wakeup->pattern_idx))
13340 goto free_msg;
13341
ae917c9f
JB		 13342 if (wakeup->tcp_match &&
13343 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13344 goto free_msg;
2a0e047e 13345
ae917c9f
JB		 13346 if (wakeup->tcp_connlost &&
13347 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13348 goto free_msg;
2a0e047e 13349
ae917c9f
JB		 13350 if (wakeup->tcp_nomoretokens &&
13351 nla_put_flag(msg,
13352 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13353 goto free_msg;
2a0e047e 13354
cd8f7cb4
JB		 13355 if (wakeup->packet) {
13356 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13357 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13358
13359 if (!wakeup->packet_80211) {
13360 pkt_attr =
13361 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13362 len_attr =
13363 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13364 }
13365
13366 if (wakeup->packet_len &&
13367 nla_put_u32(msg, len_attr, wakeup->packet_len))
13368 goto free_msg;
13369
13370 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13371 wakeup->packet))
13372 goto free_msg;
13373 }
13374
8cd4d456
LC		 13375 if (wakeup->net_detect &&
13376 cfg80211_net_detect_results(msg, wakeup))
13377 goto free_msg;
13378
cd8f7cb4
JB		 13379 nla_nest_end(msg, reasons);
13380 }
13381
9c90a9f6 13382 genlmsg_end(msg, hdr);
cd8f7cb4 13383
68eb5503 13384 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13385 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13386 return;
13387
13388 free_msg:
13389 nlmsg_free(msg);
13390}
13391EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13392#endif
13393
3475b094
JM		 13394void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13395 enum nl80211_tdls_operation oper,
13396 u16 reason_code, gfp_t gfp)
13397{
13398 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13399 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13400 struct sk_buff *msg;
13401 void *hdr;
3475b094
JM		 13402
13403 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13404 reason_code);
13405
13406 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13407 if (!msg)
13408 return;
13409
13410 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13411 if (!hdr) {
13412 nlmsg_free(msg);
13413 return;
13414 }
13415
13416 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13417 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13418 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13419 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13420 (reason_code > 0 &&
13421 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13422 goto nla_put_failure;
13423
9c90a9f6 13424 genlmsg_end(msg, hdr);
3475b094 13425
68eb5503 13426 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13427 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13428 return;
13429
13430 nla_put_failure:
13431 genlmsg_cancel(msg, hdr);
13432 nlmsg_free(msg);
13433}
13434EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13435
026331c4
JM		 13436static int nl80211_netlink_notify(struct notifier_block * nb,
13437 unsigned long state,
13438 void *_notify)
13439{
13440 struct netlink_notify *notify = _notify;
13441 struct cfg80211_registered_device *rdev;
13442 struct wireless_dev *wdev;
37c73b5f 13443 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 13444
8f815cdd 13445 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 13446 return NOTIFY_DONE;
13447
13448 rcu_read_lock();
13449
5e760230 13450 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13451 bool schedule_destroy_work = false;
93a1e86c
JR		 13452 bool schedule_scan_stop = false;
13453 struct cfg80211_sched_scan_request *sched_scan_req =
13454 rcu_dereference(rdev->sched_scan_req);
13455
13456 if (sched_scan_req && notify->portid &&
13457 sched_scan_req->owner_nlportid == notify->portid)
13458 schedule_scan_stop = true;
78f22b6a 13459
53873f13 13460 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 13461 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13462
78f22b6a
JB		 13463 if (wdev->owner_nlportid == notify->portid)
13464 schedule_destroy_work = true;
13465 }
13466
37c73b5f
BG		 13467 spin_lock_bh(&rdev->beacon_registrations_lock);
13468 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13469 list) {
13470 if (reg->nlportid == notify->portid) {
13471 list_del(&reg->list);
13472 kfree(reg);
13473 break;
13474 }
13475 }
13476 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13477
13478 if (schedule_destroy_work) {
13479 struct cfg80211_iface_destroy *destroy;
13480
13481 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13482 if (destroy) {
13483 destroy->nlportid = notify->portid;
13484 spin_lock(&rdev->destroy_list_lock);
13485 list_add(&destroy->list, &rdev->destroy_list);
13486 spin_unlock(&rdev->destroy_list_lock);
13487 schedule_work(&rdev->destroy_work);
13488 }
93a1e86c
JR		 13489 } else if (schedule_scan_stop) {
13490 sched_scan_req->owner_nlportid = 0;
13491
13492 if (rdev->ops->sched_scan_stop &&
13493 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13494 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13495 }
5e760230 13496 }
026331c4
JM		 13497
13498 rcu_read_unlock();
13499
05050753
I		 13500 /*
13501 * It is possible that the user space process that is controlling the
13502 * indoor setting disappeared, so notify the regulatory core.
13503 */
13504 regulatory_netlink_notify(notify->portid);
6784c7db 13505 return NOTIFY_OK;
026331c4
JM		 13506}
13507
13508static struct notifier_block nl80211_netlink_notifier = {
13509 .notifier_call = nl80211_netlink_notify,
13510};
13511
355199e0
JM		 13512void cfg80211_ft_event(struct net_device *netdev,
13513 struct cfg80211_ft_event_params *ft_event)
13514{
13515 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13516 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13517 struct sk_buff *msg;
13518 void *hdr;
355199e0
JM		 13519
13520 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13521
13522 if (!ft_event->target_ap)
13523 return;
13524
13525 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13526 if (!msg)
13527 return;
13528
13529 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13530 if (!hdr)
13531 goto out;
355199e0 13532
ae917c9f
JB		 13533 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13534 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13535 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13536 goto out;
355199e0 13537
ae917c9f
JB		 13538 if (ft_event->ies &&
13539 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13540 goto out;
13541 if (ft_event->ric_ies &&
13542 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13543 ft_event->ric_ies))
13544 goto out;
355199e0 13545
9c90a9f6 13546 genlmsg_end(msg, hdr);
355199e0 13547
68eb5503 13548 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13549 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13550 return;
13551 out:
13552 nlmsg_free(msg);
355199e0
JM		 13553}
13554EXPORT_SYMBOL(cfg80211_ft_event);
13555
5de17984
AS		 13556void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13557{
13558 struct cfg80211_registered_device *rdev;
13559 struct sk_buff *msg;
13560 void *hdr;
13561 u32 nlportid;
13562
f26cbf40 13563 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13564 if (!rdev->crit_proto_nlportid)
13565 return;
13566
13567 nlportid = rdev->crit_proto_nlportid;
13568 rdev->crit_proto_nlportid = 0;
13569
13570 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13571 if (!msg)
13572 return;
13573
13574 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13575 if (!hdr)
13576 goto nla_put_failure;
13577
13578 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13579 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13580 NL80211_ATTR_PAD))
5de17984
AS		 13581 goto nla_put_failure;
13582
13583 genlmsg_end(msg, hdr);
13584
13585 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13586 return;
13587
13588 nla_put_failure:
13589 if (hdr)
13590 genlmsg_cancel(msg, hdr);
13591 nlmsg_free(msg);
13592
13593}
13594EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13595
348baf0e
JB		 13596void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13597{
13598 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13599 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13600 struct sk_buff *msg;
13601 void *hdr;
13602
13603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13604 if (!msg)
13605 return;
13606
13607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13608 if (!hdr)
13609 goto out;
13610
13611 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13612 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 13613 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13614 NL80211_ATTR_PAD))
348baf0e
JB		 13615 goto out;
13616
13617 genlmsg_end(msg, hdr);
13618
13619 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13620 NL80211_MCGRP_MLME, GFP_KERNEL);
13621 return;
13622 out:
13623 nlmsg_free(msg);
13624}
13625
55682965
JB		 13626/* initialisation/exit functions */
13627
13628int nl80211_init(void)
13629{
0d63cbb5 13630 int err;
55682965 13631
2a94fe48
JB		 13632 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13633 nl80211_mcgrps);
55682965
JB		 13634 if (err)
13635 return err;
13636
026331c4
JM		 13637 err = netlink_register_notifier(&nl80211_netlink_notifier);
13638 if (err)
13639 goto err_out;
13640
55682965
JB		 13641 return 0;
13642 err_out:
13643 genl_unregister_family(&nl80211_fam);
13644 return err;
13645}
13646
13647void nl80211_exit(void)
13648{
026331c4 13649 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13650 genl_unregister_family(&nl80211_fam);
13651}
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