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mac80211: read station mgmt keys via get_key call
[mirror_ubuntu-eoan-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>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
56 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
57};
58
59static const struct genl_multicast_group nl80211_mcgrps[] = {
60 [NL80211_MCGRP_CONFIG] = { .name = "config", },
61 [NL80211_MCGRP_SCAN] = { .name = "scan", },
62 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
63 [NL80211_MCGRP_MLME] = { .name = "mlme", },
64#ifdef CONFIG_NL80211_TESTMODE
65 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
66#endif
67};
68
89a54e48
JB		 69/* returns ERR_PTR values */
70static struct wireless_dev *
71__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 72{
89a54e48
JB		 73 struct cfg80211_registered_device *rdev;
74 struct wireless_dev *result = NULL;
75 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
76 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
77 u64 wdev_id;
78 int wiphy_idx = -1;
79 int ifidx = -1;
55682965 80
5fe231e8 81 ASSERT_RTNL();
55682965 82
89a54e48
JB		 83 if (!have_ifidx && !have_wdev_id)
84 return ERR_PTR(-EINVAL);
55682965 85
89a54e48
JB		 86 if (have_ifidx)
87 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
88 if (have_wdev_id) {
89 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
90 wiphy_idx = wdev_id >> 32;
55682965
JB		 91 }
92
89a54e48
JB		 93 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
94 struct wireless_dev *wdev;
95
96 if (wiphy_net(&rdev->wiphy) != netns)
97 continue;
98
99 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
100 continue;
101
89a54e48
JB		 102 list_for_each_entry(wdev, &rdev->wdev_list, list) {
103 if (have_ifidx && wdev->netdev &&
104 wdev->netdev->ifindex == ifidx) {
105 result = wdev;
106 break;
107 }
108 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
109 result = wdev;
110 break;
111 }
112 }
89a54e48
JB		 113
114 if (result)
115 break;
116 }
117
118 if (result)
119 return result;
120 return ERR_PTR(-ENODEV);
55682965
JB		 121}
122
a9455408 123static struct cfg80211_registered_device *
878d9ec7 124__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 125{
7fee4778
JB		 126 struct cfg80211_registered_device *rdev = NULL, *tmp;
127 struct net_device *netdev;
a9455408 128
5fe231e8 129 ASSERT_RTNL();
a9455408 130
878d9ec7 131 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 132 !attrs[NL80211_ATTR_IFINDEX] &&
133 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 134 return ERR_PTR(-EINVAL);
135
878d9ec7 136 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 137 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 138 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 139
89a54e48
JB		 140 if (attrs[NL80211_ATTR_WDEV]) {
141 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
142 struct wireless_dev *wdev;
143 bool found = false;
144
145 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
146 if (tmp) {
147 /* make sure wdev exists */
89a54e48
JB		 148 list_for_each_entry(wdev, &tmp->wdev_list, list) {
149 if (wdev->identifier != (u32)wdev_id)
150 continue;
151 found = true;
152 break;
153 }
89a54e48
JB		 154
155 if (!found)
156 tmp = NULL;
157
158 if (rdev && tmp != rdev)
159 return ERR_PTR(-EINVAL);
160 rdev = tmp;
161 }
162 }
163
878d9ec7
JB		 164 if (attrs[NL80211_ATTR_IFINDEX]) {
165 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 166 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 167 if (netdev) {
168 if (netdev->ieee80211_ptr)
169 tmp = wiphy_to_dev(
170 netdev->ieee80211_ptr->wiphy);
171 else
172 tmp = NULL;
173
174 dev_put(netdev);
175
176 /* not wireless device -- return error */
177 if (!tmp)
178 return ERR_PTR(-EINVAL);
179
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
183
184 rdev = tmp;
a9455408 185 }
a9455408 186 }
a9455408 187
4f7eff10
JB		 188 if (!rdev)
189 return ERR_PTR(-ENODEV);
a9455408 190
4f7eff10
JB		 191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
193
194 return rdev;
a9455408
JB		 195}
196
197/*
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
a9455408
JB		 200 *
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
203 */
204static struct cfg80211_registered_device *
4f7eff10 205cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 206{
5fe231e8 207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208}
209
55682965 210/* policy for the attributes */
b54452b0 211static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 214 .len = 20-1 },
31888487 215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 216
72bdcf34 217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
222
b9a5f8ca
JM		 223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 228
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 232
e007b857
EP		 233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 235
b9454e83 236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 244
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 260 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 262
b2e1b302
LR		 263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
265
9f1ba906
JM		 266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
50b12f59 271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 272
24bdd9f4 273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 275
6c739419 276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 277
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 283
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
293 },
3f77316c 294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 340 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 341 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 343 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 344 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
346 .len = NL80211_HT_CAPABILITY_LEN
347 },
1d9d9213 348 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 349 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 350 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 351 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 352 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 353 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 354 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 355 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 356 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
357 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 358 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
359 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 360 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
361 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 362 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 363 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
364 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
365 .len = NL80211_VHT_CAPABILITY_LEN,
366 },
355199e0
JM		 367 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
368 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 370 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 371 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
372 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
373 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
c01fc9ad
SD		 376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
55682965
JB		 383};
384
e31b8213 385/* policy for the key attributes */
b54452b0 386static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 387 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 388 [NL80211_KEY_IDX] = { .type = NLA_U8 },
389 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 390 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 391 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
392 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 393 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 394 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
395};
396
397/* policy for the key default flags */
398static const struct nla_policy
399nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
400 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
401 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 402};
403
ff1b6e69
JB		 404/* policy for WoWLAN attributes */
405static const struct nla_policy
406nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
407 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
408 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
409 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
410 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 411 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
413 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 415 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
416};
417
418static const struct nla_policy
419nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
420 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
421 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
422 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
423 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
424 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
425 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
426 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
427 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
428 },
429 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
430 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
431 },
432 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
433 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
434 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 435};
436
be29b99a
AK		 437/* policy for coalesce rule attributes */
438static const struct nla_policy
439nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
440 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
441 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
442 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
443};
444
e5497d76
JB		 445/* policy for GTK rekey offload attributes */
446static const struct nla_policy
447nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
448 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
449 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
450 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
451};
452
a1f1c21c
LC		 453static const struct nla_policy
454nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 455 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 456 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 457 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 458};
459
97990a06
JB		 460static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
461 struct netlink_callback *cb,
462 struct cfg80211_registered_device **rdev,
463 struct wireless_dev **wdev)
a043897a 464{
97990a06 465 int err;
a043897a 466
97990a06 467 rtnl_lock();
a043897a 468
97990a06
JB		 469 if (!cb->args[0]) {
470 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
471 nl80211_fam.attrbuf, nl80211_fam.maxattr,
472 nl80211_policy);
473 if (err)
474 goto out_unlock;
67748893 475
97990a06
JB		 476 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
477 nl80211_fam.attrbuf);
478 if (IS_ERR(*wdev)) {
479 err = PTR_ERR(*wdev);
480 goto out_unlock;
481 }
482 *rdev = wiphy_to_dev((*wdev)->wiphy);
c319d50b
JB		 483 /* 0 is the first index - add 1 to parse only once */
484 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 485 cb->args[1] = (*wdev)->identifier;
486 } else {
c319d50b
JB		 487 /* subtract the 1 again here */
488 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 489 struct wireless_dev *tmp;
67748893 490
97990a06
JB		 491 if (!wiphy) {
492 err = -ENODEV;
493 goto out_unlock;
494 }
495 *rdev = wiphy_to_dev(wiphy);
496 *wdev = NULL;
67748893 497
97990a06
JB		 498 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
499 if (tmp->identifier == cb->args[1]) {
500 *wdev = tmp;
501 break;
502 }
503 }
67748893 504
97990a06
JB		 505 if (!*wdev) {
506 err = -ENODEV;
507 goto out_unlock;
508 }
67748893
JB		 509 }
510
67748893 511 return 0;
97990a06 512 out_unlock:
67748893
JB		 513 rtnl_unlock();
514 return err;
515}
516
97990a06 517static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 518{
67748893
JB		 519 rtnl_unlock();
520}
521
f4a11bb0
JB		 522/* IE validation */
523static bool is_valid_ie_attr(const struct nlattr *attr)
524{
525 const u8 *pos;
526 int len;
527
528 if (!attr)
529 return true;
530
531 pos = nla_data(attr);
532 len = nla_len(attr);
533
534 while (len) {
535 u8 elemlen;
536
537 if (len < 2)
538 return false;
539 len -= 2;
540
541 elemlen = pos[1];
542 if (elemlen > len)
543 return false;
544
545 len -= elemlen;
546 pos += 2 + elemlen;
547 }
548
549 return true;
550}
551
55682965 552/* message building helper */
15e47304 553static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 554 int flags, u8 cmd)
555{
556 /* since there is no private header just add the generic one */
15e47304 557 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 558}
559
5dab3b8a 560static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 561 struct ieee80211_channel *chan,
562 bool large)
5dab3b8a 563{
9360ffd1
DM		 564 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
565 chan->center_freq))
566 goto nla_put_failure;
5dab3b8a 567
9360ffd1
DM		 568 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
569 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
570 goto nla_put_failure;
8fe02e16
LR		 571 if (chan->flags & IEEE80211_CHAN_NO_IR) {
572 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
573 goto nla_put_failure;
574 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
575 goto nla_put_failure;
576 }
cdc89b97
JB		 577 if (chan->flags & IEEE80211_CHAN_RADAR) {
578 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
579 goto nla_put_failure;
580 if (large) {
581 u32 time;
582
583 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
584
585 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
586 chan->dfs_state))
587 goto nla_put_failure;
588 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
589 time))
590 goto nla_put_failure;
591 }
592 }
5dab3b8a 593
fe1abafd
JB		 594 if (large) {
595 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
596 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
597 goto nla_put_failure;
598 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
599 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
600 goto nla_put_failure;
601 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
602 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
603 goto nla_put_failure;
604 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
605 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
606 goto nla_put_failure;
607 }
608
9360ffd1
DM		 609 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
610 DBM_TO_MBM(chan->max_power)))
611 goto nla_put_failure;
5dab3b8a
LR		 612
613 return 0;
614
615 nla_put_failure:
616 return -ENOBUFS;
617}
618
55682965
JB		 619/* netlink command implementations */
620
b9454e83
JB		 621struct key_parse {
622 struct key_params p;
623 int idx;
e31b8213 624 int type;
b9454e83 625 bool def, defmgmt;
dbd2fd65 626 bool def_uni, def_multi;
b9454e83
JB		 627};
628
629static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
630{
631 struct nlattr *tb[NL80211_KEY_MAX + 1];
632 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
633 nl80211_key_policy);
634 if (err)
635 return err;
636
637 k->def = !!tb[NL80211_KEY_DEFAULT];
638 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
639
dbd2fd65
JB		 640 if (k->def) {
641 k->def_uni = true;
642 k->def_multi = true;
643 }
644 if (k->defmgmt)
645 k->def_multi = true;
646
b9454e83
JB		 647 if (tb[NL80211_KEY_IDX])
648 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
649
650 if (tb[NL80211_KEY_DATA]) {
651 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
652 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
653 }
654
655 if (tb[NL80211_KEY_SEQ]) {
656 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
657 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
658 }
659
660 if (tb[NL80211_KEY_CIPHER])
661 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
662
e31b8213
JB		 663 if (tb[NL80211_KEY_TYPE]) {
664 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
665 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
666 return -EINVAL;
667 }
668
dbd2fd65
JB		 669 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
670 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 671 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
672 tb[NL80211_KEY_DEFAULT_TYPES],
673 nl80211_key_default_policy);
dbd2fd65
JB		 674 if (err)
675 return err;
676
677 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
678 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
679 }
680
b9454e83
JB		 681 return 0;
682}
683
684static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
685{
686 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
687 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
688 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
689 }
690
691 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
692 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
693 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
694 }
695
696 if (info->attrs[NL80211_ATTR_KEY_IDX])
697 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
698
699 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
700 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
701
702 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
703 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
704
dbd2fd65
JB		 705 if (k->def) {
706 k->def_uni = true;
707 k->def_multi = true;
708 }
709 if (k->defmgmt)
710 k->def_multi = true;
711
e31b8213
JB		 712 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
713 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
714 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
715 return -EINVAL;
716 }
717
dbd2fd65
JB		 718 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
719 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
720 int err = nla_parse_nested(
721 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
722 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
723 nl80211_key_default_policy);
724 if (err)
725 return err;
726
727 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
728 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
729 }
730
b9454e83
JB		 731 return 0;
732}
733
734static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
735{
736 int err;
737
738 memset(k, 0, sizeof(*k));
739 k->idx = -1;
e31b8213 740 k->type = -1;
b9454e83
JB		 741
742 if (info->attrs[NL80211_ATTR_KEY])
743 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
744 else
745 err = nl80211_parse_key_old(info, k);
746
747 if (err)
748 return err;
749
750 if (k->def && k->defmgmt)
751 return -EINVAL;
752
dbd2fd65
JB		 753 if (k->defmgmt) {
754 if (k->def_uni || !k->def_multi)
755 return -EINVAL;
756 }
757
b9454e83
JB		 758 if (k->idx != -1) {
759 if (k->defmgmt) {
760 if (k->idx < 4 || k->idx > 5)
761 return -EINVAL;
762 } else if (k->def) {
763 if (k->idx < 0 || k->idx > 3)
764 return -EINVAL;
765 } else {
766 if (k->idx < 0 || k->idx > 5)
767 return -EINVAL;
768 }
769 }
770
771 return 0;
772}
773
fffd0934
JB		 774static struct cfg80211_cached_keys *
775nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 776 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 777{
778 struct key_parse parse;
779 struct nlattr *key;
780 struct cfg80211_cached_keys *result;
781 int rem, err, def = 0;
782
783 result = kzalloc(sizeof(*result), GFP_KERNEL);
784 if (!result)
785 return ERR_PTR(-ENOMEM);
786
787 result->def = -1;
788 result->defmgmt = -1;
789
790 nla_for_each_nested(key, keys, rem) {
791 memset(&parse, 0, sizeof(parse));
792 parse.idx = -1;
793
794 err = nl80211_parse_key_new(key, &parse);
795 if (err)
796 goto error;
797 err = -EINVAL;
798 if (!parse.p.key)
799 goto error;
800 if (parse.idx < 0 || parse.idx > 4)
801 goto error;
802 if (parse.def) {
803 if (def)
804 goto error;
805 def = 1;
806 result->def = parse.idx;
dbd2fd65
JB		 807 if (!parse.def_uni || !parse.def_multi)
808 goto error;
fffd0934
JB		 809 } else if (parse.defmgmt)
810 goto error;
811 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 812 parse.idx, false, NULL);
fffd0934
JB		 813 if (err)
814 goto error;
815 result->params[parse.idx].cipher = parse.p.cipher;
816 result->params[parse.idx].key_len = parse.p.key_len;
817 result->params[parse.idx].key = result->data[parse.idx];
818 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 819
820 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
821 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
822 if (no_ht)
823 *no_ht = true;
824 }
fffd0934
JB		 825 }
826
827 return result;
828 error:
829 kfree(result);
830 return ERR_PTR(err);
831}
832
833static int nl80211_key_allowed(struct wireless_dev *wdev)
834{
835 ASSERT_WDEV_LOCK(wdev);
836
fffd0934
JB		 837 switch (wdev->iftype) {
838 case NL80211_IFTYPE_AP:
839 case NL80211_IFTYPE_AP_VLAN:
074ac8df 840 case NL80211_IFTYPE_P2P_GO:
ff973af7 841 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 842 break;
843 case NL80211_IFTYPE_ADHOC:
fffd0934 844 case NL80211_IFTYPE_STATION:
074ac8df 845 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 846 if (!wdev->current_bss)
fffd0934
JB		 847 return -ENOLINK;
848 break;
849 default:
850 return -EINVAL;
851 }
852
853 return 0;
854}
855
7527a782
JB		 856static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
857{
858 struct nlattr *nl_modes = nla_nest_start(msg, attr);
859 int i;
860
861 if (!nl_modes)
862 goto nla_put_failure;
863
864 i = 0;
865 while (ifmodes) {
9360ffd1
DM		 866 if ((ifmodes & 1) && nla_put_flag(msg, i))
867 goto nla_put_failure;
7527a782
JB		 868 ifmodes >>= 1;
869 i++;
870 }
871
872 nla_nest_end(msg, nl_modes);
873 return 0;
874
875nla_put_failure:
876 return -ENOBUFS;
877}
878
879static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 880 struct sk_buff *msg,
881 bool large)
7527a782
JB		 882{
883 struct nlattr *nl_combis;
884 int i, j;
885
886 nl_combis = nla_nest_start(msg,
887 NL80211_ATTR_INTERFACE_COMBINATIONS);
888 if (!nl_combis)
889 goto nla_put_failure;
890
891 for (i = 0; i < wiphy->n_iface_combinations; i++) {
892 const struct ieee80211_iface_combination *c;
893 struct nlattr *nl_combi, *nl_limits;
894
895 c = &wiphy->iface_combinations[i];
896
897 nl_combi = nla_nest_start(msg, i + 1);
898 if (!nl_combi)
899 goto nla_put_failure;
900
901 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
902 if (!nl_limits)
903 goto nla_put_failure;
904
905 for (j = 0; j < c->n_limits; j++) {
906 struct nlattr *nl_limit;
907
908 nl_limit = nla_nest_start(msg, j + 1);
909 if (!nl_limit)
910 goto nla_put_failure;
9360ffd1
DM		 911 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
912 c->limits[j].max))
913 goto nla_put_failure;
7527a782
JB		 914 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
915 c->limits[j].types))
916 goto nla_put_failure;
917 nla_nest_end(msg, nl_limit);
918 }
919
920 nla_nest_end(msg, nl_limits);
921
9360ffd1
DM		 922 if (c->beacon_int_infra_match &&
923 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
924 goto nla_put_failure;
925 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
926 c->num_different_channels) ||
927 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
928 c->max_interfaces))
929 goto nla_put_failure;
cdc89b97
JB		 930 if (large &&
931 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
932 c->radar_detect_widths))
933 goto nla_put_failure;
7527a782
JB		 934
935 nla_nest_end(msg, nl_combi);
936 }
937
938 nla_nest_end(msg, nl_combis);
939
940 return 0;
941nla_put_failure:
942 return -ENOBUFS;
943}
944
3713b4e3 945#ifdef CONFIG_PM
b56cf720
JB		 946static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
947 struct sk_buff *msg)
948{
964dc9e2 949 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 950 struct nlattr *nl_tcp;
951
952 if (!tcp)
953 return 0;
954
955 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
956 if (!nl_tcp)
957 return -ENOBUFS;
958
959 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
960 tcp->data_payload_max))
961 return -ENOBUFS;
962
963 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
964 tcp->data_payload_max))
965 return -ENOBUFS;
966
967 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
968 return -ENOBUFS;
969
970 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
971 sizeof(*tcp->tok), tcp->tok))
972 return -ENOBUFS;
973
974 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
975 tcp->data_interval_max))
976 return -ENOBUFS;
977
978 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
979 tcp->wake_payload_max))
980 return -ENOBUFS;
981
982 nla_nest_end(msg, nl_tcp);
983 return 0;
984}
985
3713b4e3 986static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 987 struct cfg80211_registered_device *dev,
988 bool large)
55682965 989{
3713b4e3 990 struct nlattr *nl_wowlan;
55682965 991
964dc9e2 992 if (!dev->wiphy.wowlan)
3713b4e3 993 return 0;
55682965 994
3713b4e3
JB		 995 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
996 if (!nl_wowlan)
997 return -ENOBUFS;
9360ffd1 998
964dc9e2 999 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1000 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 1001 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1002 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 1003 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1004 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 1005 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1006 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 1007 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1008 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 1009 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1010 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 1011 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1012 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 1013 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1014 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1015 return -ENOBUFS;
9360ffd1 1016
964dc9e2 1017 if (dev->wiphy.wowlan->n_patterns) {
50ac6607 1018 struct nl80211_pattern_support pat = {
964dc9e2
JB		 1019 .max_patterns = dev->wiphy.wowlan->n_patterns,
1020 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1021 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1022 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1023 };
9360ffd1 1024
3713b4e3
JB		 1025 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1026 sizeof(pat), &pat))
1027 return -ENOBUFS;
1028 }
9360ffd1 1029
b56cf720
JB		 1030 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1031 return -ENOBUFS;
1032
3713b4e3 1033 nla_nest_end(msg, nl_wowlan);
9360ffd1 1034
3713b4e3
JB		 1035 return 0;
1036}
1037#endif
9360ffd1 1038
be29b99a
AK		 1039static int nl80211_send_coalesce(struct sk_buff *msg,
1040 struct cfg80211_registered_device *dev)
1041{
1042 struct nl80211_coalesce_rule_support rule;
1043
1044 if (!dev->wiphy.coalesce)
1045 return 0;
1046
1047 rule.max_rules = dev->wiphy.coalesce->n_rules;
1048 rule.max_delay = dev->wiphy.coalesce->max_delay;
1049 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1050 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1051 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1052 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1053
1054 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1055 return -ENOBUFS;
1056
1057 return 0;
1058}
1059
3713b4e3
JB		 1060static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1061 struct ieee80211_supported_band *sband)
1062{
1063 struct nlattr *nl_rates, *nl_rate;
1064 struct ieee80211_rate *rate;
1065 int i;
87bbbe22 1066
3713b4e3
JB		 1067 /* add HT info */
1068 if (sband->ht_cap.ht_supported &&
1069 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1070 sizeof(sband->ht_cap.mcs),
1071 &sband->ht_cap.mcs) ||
1072 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1073 sband->ht_cap.cap) ||
1074 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1075 sband->ht_cap.ampdu_factor) ||
1076 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1077 sband->ht_cap.ampdu_density)))
1078 return -ENOBUFS;
afe0cbf8 1079
3713b4e3
JB		 1080 /* add VHT info */
1081 if (sband->vht_cap.vht_supported &&
1082 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1083 sizeof(sband->vht_cap.vht_mcs),
1084 &sband->vht_cap.vht_mcs) ||
1085 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1086 sband->vht_cap.cap)))
1087 return -ENOBUFS;
f59ac048 1088
3713b4e3
JB		 1089 /* add bitrates */
1090 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1091 if (!nl_rates)
1092 return -ENOBUFS;
ee688b00 1093
3713b4e3
JB		 1094 for (i = 0; i < sband->n_bitrates; i++) {
1095 nl_rate = nla_nest_start(msg, i);
1096 if (!nl_rate)
1097 return -ENOBUFS;
ee688b00 1098
3713b4e3
JB		 1099 rate = &sband->bitrates[i];
1100 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1101 rate->bitrate))
1102 return -ENOBUFS;
1103 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1104 nla_put_flag(msg,
1105 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1106 return -ENOBUFS;
ee688b00 1107
3713b4e3
JB		 1108 nla_nest_end(msg, nl_rate);
1109 }
d51626df 1110
3713b4e3 1111 nla_nest_end(msg, nl_rates);
bf0c111e 1112
3713b4e3
JB		 1113 return 0;
1114}
ee688b00 1115
3713b4e3
JB		 1116static int
1117nl80211_send_mgmt_stypes(struct sk_buff *msg,
1118 const struct ieee80211_txrx_stypes *mgmt_stypes)
1119{
1120 u16 stypes;
1121 struct nlattr *nl_ftypes, *nl_ifs;
1122 enum nl80211_iftype ift;
1123 int i;
ee688b00 1124
3713b4e3
JB		 1125 if (!mgmt_stypes)
1126 return 0;
5dab3b8a 1127
3713b4e3
JB		 1128 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1129 if (!nl_ifs)
1130 return -ENOBUFS;
e2f367f2 1131
3713b4e3
JB		 1132 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1133 nl_ftypes = nla_nest_start(msg, ift);
1134 if (!nl_ftypes)
1135 return -ENOBUFS;
1136 i = 0;
1137 stypes = mgmt_stypes[ift].tx;
1138 while (stypes) {
1139 if ((stypes & 1) &&
1140 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1141 (i << 4) | IEEE80211_FTYPE_MGMT))
1142 return -ENOBUFS;
1143 stypes >>= 1;
1144 i++;
ee688b00 1145 }
3713b4e3
JB		 1146 nla_nest_end(msg, nl_ftypes);
1147 }
ee688b00 1148
3713b4e3 1149 nla_nest_end(msg, nl_ifs);
ee688b00 1150
3713b4e3
JB		 1151 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1152 if (!nl_ifs)
1153 return -ENOBUFS;
ee688b00 1154
3713b4e3
JB		 1155 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1156 nl_ftypes = nla_nest_start(msg, ift);
1157 if (!nl_ftypes)
1158 return -ENOBUFS;
1159 i = 0;
1160 stypes = mgmt_stypes[ift].rx;
1161 while (stypes) {
1162 if ((stypes & 1) &&
1163 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1164 (i << 4) | IEEE80211_FTYPE_MGMT))
1165 return -ENOBUFS;
1166 stypes >>= 1;
1167 i++;
1168 }
1169 nla_nest_end(msg, nl_ftypes);
1170 }
1171 nla_nest_end(msg, nl_ifs);
ee688b00 1172
3713b4e3
JB		 1173 return 0;
1174}
ee688b00 1175
86e8cf98
JB		 1176struct nl80211_dump_wiphy_state {
1177 s64 filter_wiphy;
1178 long start;
1179 long split_start, band_start, chan_start;
1180 bool split;
1181};
1182
3713b4e3
JB		 1183static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1184 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1185 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1186{
1187 void *hdr;
1188 struct nlattr *nl_bands, *nl_band;
1189 struct nlattr *nl_freqs, *nl_freq;
1190 struct nlattr *nl_cmds;
ad7e718c 1191 struct nlattr *nl_vendor_cmds;
3713b4e3
JB		 1192 enum ieee80211_band band;
1193 struct ieee80211_channel *chan;
1194 int i;
1195 const struct ieee80211_txrx_stypes *mgmt_stypes =
1196 dev->wiphy.mgmt_stypes;
fe1abafd 1197 u32 features;
ee688b00 1198
3713b4e3
JB		 1199 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1200 if (!hdr)
1201 return -ENOBUFS;
ee688b00 1202
86e8cf98
JB		 1203 if (WARN_ON(!state))
1204 return -EINVAL;
ee688b00 1205
3713b4e3
JB		 1206 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1207 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1208 wiphy_name(&dev->wiphy)) ||
1209 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1210 cfg80211_rdev_list_generation))
8fdc621d
JB		 1211 goto nla_put_failure;
1212
86e8cf98 1213 switch (state->split_start) {
3713b4e3
JB		 1214 case 0:
1215 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1216 dev->wiphy.retry_short) ||
1217 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1218 dev->wiphy.retry_long) ||
1219 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1220 dev->wiphy.frag_threshold) ||
1221 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1222 dev->wiphy.rts_threshold) ||
1223 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1224 dev->wiphy.coverage_class) ||
1225 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1226 dev->wiphy.max_scan_ssids) ||
1227 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1228 dev->wiphy.max_sched_scan_ssids) ||
1229 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1230 dev->wiphy.max_scan_ie_len) ||
1231 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1232 dev->wiphy.max_sched_scan_ie_len) ||
1233 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1234 dev->wiphy.max_match_sets))
9360ffd1 1235 goto nla_put_failure;
3713b4e3
JB		 1236
1237 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1238 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1239 goto nla_put_failure;
3713b4e3
JB		 1240 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1241 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1242 goto nla_put_failure;
1243 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1244 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1245 goto nla_put_failure;
1246 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1247 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1248 goto nla_put_failure;
1249 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1250 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1251 goto nla_put_failure;
1252 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1253 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1254 goto nla_put_failure;
86e8cf98
JB		 1255 state->split_start++;
1256 if (state->split)
3713b4e3
JB		 1257 break;
1258 case 1:
1259 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1260 sizeof(u32) * dev->wiphy.n_cipher_suites,
1261 dev->wiphy.cipher_suites))
1262 goto nla_put_failure;
4745fc09 1263
3713b4e3
JB		 1264 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1265 dev->wiphy.max_num_pmkids))
1266 goto nla_put_failure;
b23aa676 1267
3713b4e3
JB		 1268 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1269 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1270 goto nla_put_failure;
b23aa676 1271
3713b4e3
JB		 1272 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1273 dev->wiphy.available_antennas_tx) ||
1274 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1275 dev->wiphy.available_antennas_rx))
9360ffd1 1276 goto nla_put_failure;
b23aa676 1277
3713b4e3
JB		 1278 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1279 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1280 dev->wiphy.probe_resp_offload))
1281 goto nla_put_failure;
8fdc621d 1282
3713b4e3
JB		 1283 if ((dev->wiphy.available_antennas_tx ||
1284 dev->wiphy.available_antennas_rx) &&
1285 dev->ops->get_antenna) {
1286 u32 tx_ant = 0, rx_ant = 0;
1287 int res;
1288 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1289 if (!res) {
1290 if (nla_put_u32(msg,
1291 NL80211_ATTR_WIPHY_ANTENNA_TX,
1292 tx_ant) ||
1293 nla_put_u32(msg,
1294 NL80211_ATTR_WIPHY_ANTENNA_RX,
1295 rx_ant))
1296 goto nla_put_failure;
1297 }
1298 }
a293911d 1299
86e8cf98
JB		 1300 state->split_start++;
1301 if (state->split)
3713b4e3
JB		 1302 break;
1303 case 2:
1304 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1305 dev->wiphy.interface_modes))
1306 goto nla_put_failure;
86e8cf98
JB		 1307 state->split_start++;
1308 if (state->split)
3713b4e3
JB		 1309 break;
1310 case 3:
1311 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1312 if (!nl_bands)
1313 goto nla_put_failure;
f7ca38df 1314
86e8cf98
JB		 1315 for (band = state->band_start;
1316 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1317 struct ieee80211_supported_band *sband;
2e161f78 1318
3713b4e3 1319 sband = dev->wiphy.bands[band];
2e161f78 1320
3713b4e3
JB		 1321 if (!sband)
1322 continue;
1323
1324 nl_band = nla_nest_start(msg, band);
1325 if (!nl_band)
2e161f78 1326 goto nla_put_failure;
3713b4e3 1327
86e8cf98 1328 switch (state->chan_start) {
3713b4e3
JB		 1329 case 0:
1330 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1331 goto nla_put_failure;
86e8cf98
JB		 1332 state->chan_start++;
1333 if (state->split)
3713b4e3
JB		 1334 break;
1335 default:
1336 /* add frequencies */
1337 nl_freqs = nla_nest_start(
1338 msg, NL80211_BAND_ATTR_FREQS);
1339 if (!nl_freqs)
1340 goto nla_put_failure;
1341
86e8cf98 1342 for (i = state->chan_start - 1;
3713b4e3
JB		 1343 i < sband->n_channels;
1344 i++) {
1345 nl_freq = nla_nest_start(msg, i);
1346 if (!nl_freq)
1347 goto nla_put_failure;
1348
1349 chan = &sband->channels[i];
1350
86e8cf98
JB		 1351 if (nl80211_msg_put_channel(
1352 msg, chan,
1353 state->split))
3713b4e3
JB		 1354 goto nla_put_failure;
1355
1356 nla_nest_end(msg, nl_freq);
86e8cf98 1357 if (state->split)
3713b4e3
JB		 1358 break;
1359 }
1360 if (i < sband->n_channels)
86e8cf98 1361 state->chan_start = i + 2;
3713b4e3 1362 else
86e8cf98 1363 state->chan_start = 0;
3713b4e3
JB		 1364 nla_nest_end(msg, nl_freqs);
1365 }
1366
1367 nla_nest_end(msg, nl_band);
1368
86e8cf98 1369 if (state->split) {
3713b4e3 1370 /* start again here */
86e8cf98 1371 if (state->chan_start)
3713b4e3
JB		 1372 band--;
1373 break;
2e161f78 1374 }
2e161f78 1375 }
3713b4e3 1376 nla_nest_end(msg, nl_bands);
2e161f78 1377
3713b4e3 1378 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1379 state->band_start = band + 1;
3713b4e3 1380 else
86e8cf98 1381 state->band_start = 0;
74b70a4e 1382
3713b4e3 1383 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1384 if (state->band_start == 0 && state->chan_start == 0)
1385 state->split_start++;
1386 if (state->split)
3713b4e3
JB		 1387 break;
1388 case 4:
1389 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1390 if (!nl_cmds)
2e161f78
JB		 1391 goto nla_put_failure;
1392
3713b4e3
JB		 1393 i = 0;
1394#define CMD(op, n) \
1395 do { \
1396 if (dev->ops->op) { \
1397 i++; \
1398 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1399 goto nla_put_failure; \
1400 } \
1401 } while (0)
1402
1403 CMD(add_virtual_intf, NEW_INTERFACE);
1404 CMD(change_virtual_intf, SET_INTERFACE);
1405 CMD(add_key, NEW_KEY);
1406 CMD(start_ap, START_AP);
1407 CMD(add_station, NEW_STATION);
1408 CMD(add_mpath, NEW_MPATH);
1409 CMD(update_mesh_config, SET_MESH_CONFIG);
1410 CMD(change_bss, SET_BSS);
1411 CMD(auth, AUTHENTICATE);
1412 CMD(assoc, ASSOCIATE);
1413 CMD(deauth, DEAUTHENTICATE);
1414 CMD(disassoc, DISASSOCIATE);
1415 CMD(join_ibss, JOIN_IBSS);
1416 CMD(join_mesh, JOIN_MESH);
1417 CMD(set_pmksa, SET_PMKSA);
1418 CMD(del_pmksa, DEL_PMKSA);
1419 CMD(flush_pmksa, FLUSH_PMKSA);
1420 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1421 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1422 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1423 CMD(mgmt_tx, FRAME);
1424 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1425 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1426 i++;
1427 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1428 goto nla_put_failure;
2e161f78 1429 }
3713b4e3
JB		 1430 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1431 dev->ops->join_mesh) {
1432 i++;
1433 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1434 goto nla_put_failure;
1435 }
1436 CMD(set_wds_peer, SET_WDS_PEER);
1437 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1438 CMD(tdls_mgmt, TDLS_MGMT);
1439 CMD(tdls_oper, TDLS_OPER);
1440 }
1441 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1442 CMD(sched_scan_start, START_SCHED_SCAN);
1443 CMD(probe_client, PROBE_CLIENT);
1444 CMD(set_noack_map, SET_NOACK_MAP);
1445 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1446 i++;
1447 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1448 goto nla_put_failure;
1449 }
1450 CMD(start_p2p_device, START_P2P_DEVICE);
1451 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1452 if (state->split) {
5de17984
AS		 1453 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1454 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
16ef1fe2
SW		 1455 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1456 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1457 }
2e161f78 1458
3713b4e3
JB		 1459#ifdef CONFIG_NL80211_TESTMODE
1460 CMD(testmode_cmd, TESTMODE);
1461#endif
ff1b6e69 1462
3713b4e3 1463#undef CMD
ff1b6e69 1464
3713b4e3
JB		 1465 if (dev->ops->connect || dev->ops->auth) {
1466 i++;
1467 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1468 goto nla_put_failure;
ff1b6e69
JB		 1469 }
1470
3713b4e3
JB		 1471 if (dev->ops->disconnect || dev->ops->deauth) {
1472 i++;
1473 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1474 goto nla_put_failure;
1475 }
1476
1477 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1478 state->split_start++;
1479 if (state->split)
3713b4e3
JB		 1480 break;
1481 case 5:
1482 if (dev->ops->remain_on_channel &&
1483 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1484 nla_put_u32(msg,
1485 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1486 dev->wiphy.max_remain_on_channel_duration))
1487 goto nla_put_failure;
1488
1489 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1490 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1491 goto nla_put_failure;
1492
1493 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1494 goto nla_put_failure;
86e8cf98
JB		 1495 state->split_start++;
1496 if (state->split)
3713b4e3
JB		 1497 break;
1498 case 6:
1499#ifdef CONFIG_PM
86e8cf98 1500 if (nl80211_send_wowlan(msg, dev, state->split))
3713b4e3 1501 goto nla_put_failure;
86e8cf98
JB		 1502 state->split_start++;
1503 if (state->split)
3713b4e3
JB		 1504 break;
1505#else
86e8cf98 1506 state->split_start++;
dfb89c56 1507#endif
3713b4e3
JB		 1508 case 7:
1509 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1510 dev->wiphy.software_iftypes))
1511 goto nla_put_failure;
ff1b6e69 1512
86e8cf98
JB		 1513 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1514 state->split))
3713b4e3 1515 goto nla_put_failure;
7527a782 1516
86e8cf98
JB		 1517 state->split_start++;
1518 if (state->split)
3713b4e3
JB		 1519 break;
1520 case 8:
1521 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1522 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1523 dev->wiphy.ap_sme_capa))
1524 goto nla_put_failure;
7527a782 1525
fe1abafd
JB		 1526 features = dev->wiphy.features;
1527 /*
1528 * We can only add the per-channel limit information if the
1529 * dump is split, otherwise it makes it too big. Therefore
1530 * only advertise it in that case.
1531 */
86e8cf98 1532 if (state->split)
fe1abafd
JB		 1533 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1534 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1535 goto nla_put_failure;
562a7480 1536
3713b4e3
JB		 1537 if (dev->wiphy.ht_capa_mod_mask &&
1538 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1539 sizeof(*dev->wiphy.ht_capa_mod_mask),
1540 dev->wiphy.ht_capa_mod_mask))
1541 goto nla_put_failure;
1f074bd8 1542
3713b4e3
JB		 1543 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1544 dev->wiphy.max_acl_mac_addrs &&
1545 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1546 dev->wiphy.max_acl_mac_addrs))
1547 goto nla_put_failure;
7e7c8926 1548
3713b4e3
JB		 1549 /*
1550 * Any information below this point is only available to
1551 * applications that can deal with it being split. This
1552 * helps ensure that newly added capabilities don't break
1553 * older tools by overrunning their buffers.
1554 *
1555 * We still increment split_start so that in the split
1556 * case we'll continue with more data in the next round,
1557 * but break unconditionally so unsplit data stops here.
1558 */
86e8cf98 1559 state->split_start++;
3713b4e3
JB		 1560 break;
1561 case 9:
fe1abafd
JB		 1562 if (dev->wiphy.extended_capabilities &&
1563 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1564 dev->wiphy.extended_capabilities_len,
1565 dev->wiphy.extended_capabilities) ||
1566 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1567 dev->wiphy.extended_capabilities_len,
1568 dev->wiphy.extended_capabilities_mask)))
1569 goto nla_put_failure;
a50df0c4 1570
ee2aca34
JB		 1571 if (dev->wiphy.vht_capa_mod_mask &&
1572 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1573 sizeof(*dev->wiphy.vht_capa_mod_mask),
1574 dev->wiphy.vht_capa_mod_mask))
1575 goto nla_put_failure;
1576
be29b99a
AK		 1577 state->split_start++;
1578 break;
1579 case 10:
1580 if (nl80211_send_coalesce(msg, dev))
1581 goto nla_put_failure;
1582
01e0daa4
FF		 1583 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1584 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1585 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1586 goto nla_put_failure;
ad7e718c
JB		 1587 state->split_start++;
1588 break;
1589 case 11:
1590 nl_vendor_cmds = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1591 if (!nl_vendor_cmds)
1592 goto nla_put_failure;
1593
1594 for (i = 0; i < dev->wiphy.n_vendor_commands; i++)
1595 if (nla_put(msg, i + 1,
1596 sizeof(struct nl80211_vendor_cmd_info),
1597 &dev->wiphy.vendor_commands[i].info))
1598 goto nla_put_failure;
1599 nla_nest_end(msg, nl_vendor_cmds);
01e0daa4 1600
3713b4e3 1601 /* done */
86e8cf98 1602 state->split_start = 0;
3713b4e3
JB		 1603 break;
1604 }
55682965
JB		 1605 return genlmsg_end(msg, hdr);
1606
1607 nla_put_failure:
bc3ed28c
TG		 1608 genlmsg_cancel(msg, hdr);
1609 return -EMSGSIZE;
55682965
JB		 1610}
1611
86e8cf98
JB		 1612static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1613 struct netlink_callback *cb,
1614 struct nl80211_dump_wiphy_state *state)
1615{
1616 struct nlattr **tb = nl80211_fam.attrbuf;
1617 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1618 tb, nl80211_fam.maxattr, nl80211_policy);
1619 /* ignore parse errors for backward compatibility */
1620 if (ret)
1621 return 0;
1622
1623 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1624 if (tb[NL80211_ATTR_WIPHY])
1625 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1626 if (tb[NL80211_ATTR_WDEV])
1627 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1628 if (tb[NL80211_ATTR_IFINDEX]) {
1629 struct net_device *netdev;
1630 struct cfg80211_registered_device *rdev;
1631 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1632
1633 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1634 if (!netdev)
1635 return -ENODEV;
1636 if (netdev->ieee80211_ptr) {
1637 rdev = wiphy_to_dev(
1638 netdev->ieee80211_ptr->wiphy);
1639 state->filter_wiphy = rdev->wiphy_idx;
1640 }
1641 dev_put(netdev);
1642 }
1643
1644 return 0;
1645}
1646
55682965
JB		 1647static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1648{
645e77de 1649 int idx = 0, ret;
86e8cf98 1650 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
55682965 1651 struct cfg80211_registered_device *dev;
3a5a423b 1652
5fe231e8 1653 rtnl_lock();
86e8cf98
JB		 1654 if (!state) {
1655 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1656 if (!state) {
1657 rtnl_unlock();
86e8cf98 1658 return -ENOMEM;
3713b4e3 1659 }
86e8cf98
JB		 1660 state->filter_wiphy = -1;
1661 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1662 if (ret) {
1663 kfree(state);
1664 rtnl_unlock();
1665 return ret;
3713b4e3 1666 }
86e8cf98 1667 cb->args[0] = (long)state;
3713b4e3
JB		 1668 }
1669
79c97e97 1670 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1671 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1672 continue;
86e8cf98 1673 if (++idx <= state->start)
55682965 1674 continue;
86e8cf98
JB		 1675 if (state->filter_wiphy != -1 &&
1676 state->filter_wiphy != dev->wiphy_idx)
3713b4e3
JB		 1677 continue;
1678 /* attempt to fit multiple wiphy data chunks into the skb */
1679 do {
1680 ret = nl80211_send_wiphy(dev, skb,
1681 NETLINK_CB(cb->skb).portid,
1682 cb->nlh->nlmsg_seq,
86e8cf98 1683 NLM_F_MULTI, state);
3713b4e3
JB		 1684 if (ret < 0) {
1685 /*
1686 * If sending the wiphy data didn't fit (ENOBUFS
1687 * or EMSGSIZE returned), this SKB is still
1688 * empty (so it's not too big because another
1689 * wiphy dataset is already in the skb) and
1690 * we've not tried to adjust the dump allocation
1691 * yet ... then adjust the alloc size to be
1692 * bigger, and return 1 but with the empty skb.
1693 * This results in an empty message being RX'ed
1694 * in userspace, but that is ignored.
1695 *
1696 * We can then retry with the larger buffer.
1697 */
1698 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1699 !skb->len &&
1700 cb->min_dump_alloc < 4096) {
1701 cb->min_dump_alloc = 4096;
d98cae64 1702 rtnl_unlock();
3713b4e3
JB		 1703 return 1;
1704 }
1705 idx--;
1706 break;
645e77de 1707 }
86e8cf98 1708 } while (state->split_start > 0);
3713b4e3 1709 break;
55682965 1710 }
5fe231e8 1711 rtnl_unlock();
55682965 1712
86e8cf98 1713 state->start = idx;
55682965
JB		 1714
1715 return skb->len;
1716}
1717
86e8cf98
JB		 1718static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1719{
1720 kfree((void *)cb->args[0]);
1721 return 0;
1722}
1723
55682965
JB		 1724static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1725{
1726 struct sk_buff *msg;
4c476991 1727 struct cfg80211_registered_device *dev = info->user_ptr[0];
86e8cf98 1728 struct nl80211_dump_wiphy_state state = {};
55682965 1729
645e77de 1730 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1731 if (!msg)
4c476991 1732 return -ENOMEM;
55682965 1733
3713b4e3 1734 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1735 &state) < 0) {
4c476991
JB		 1736 nlmsg_free(msg);
1737 return -ENOBUFS;
1738 }
55682965 1739
134e6375 1740 return genlmsg_reply(msg, info);
55682965
JB		 1741}
1742
31888487
JM		 1743static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1744 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1745 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1746 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1747 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1748 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1749};
1750
1751static int parse_txq_params(struct nlattr *tb[],
1752 struct ieee80211_txq_params *txq_params)
1753{
a3304b0a 1754 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1755 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1756 !tb[NL80211_TXQ_ATTR_AIFS])
1757 return -EINVAL;
1758
a3304b0a 1759 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1760 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1761 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1762 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1763 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1764
a3304b0a
JB		 1765 if (txq_params->ac >= NL80211_NUM_ACS)
1766 return -EINVAL;
1767
31888487
JM		 1768 return 0;
1769}
1770
f444de05
JB		 1771static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1772{
1773 /*
cc1d2806
JB		 1774 * You can only set the channel explicitly for WDS interfaces,
1775 * all others have their channel managed via their respective
1776 * "establish a connection" command (connect, join, ...)
1777 *
1778 * For AP/GO and mesh mode, the channel can be set with the
1779 * channel userspace API, but is only stored and passed to the
1780 * low-level driver when the AP starts or the mesh is joined.
1781 * This is for backward compatibility, userspace can also give
1782 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1783 *
1784 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1785 * whatever else is going on, so they have their own special
1786 * operation to set the monitor channel if possible.
f444de05
JB		 1787 */
1788 return !wdev ||
1789 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1790 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1791 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1792 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1793}
1794
683b6d3b
JB		 1795static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1796 struct genl_info *info,
1797 struct cfg80211_chan_def *chandef)
1798{
dbeca2ea 1799 u32 control_freq;
683b6d3b
JB		 1800
1801 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1802 return -EINVAL;
1803
1804 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1805
1806 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1807 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1808 chandef->center_freq1 = control_freq;
1809 chandef->center_freq2 = 0;
683b6d3b
JB		 1810
1811 /* Primary channel not allowed */
1812 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1813 return -EINVAL;
1814
3d9d1d66
JB		 1815 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1816 enum nl80211_channel_type chantype;
1817
1818 chantype = nla_get_u32(
1819 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1820
1821 switch (chantype) {
1822 case NL80211_CHAN_NO_HT:
1823 case NL80211_CHAN_HT20:
1824 case NL80211_CHAN_HT40PLUS:
1825 case NL80211_CHAN_HT40MINUS:
1826 cfg80211_chandef_create(chandef, chandef->chan,
1827 chantype);
1828 break;
1829 default:
1830 return -EINVAL;
1831 }
1832 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1833 chandef->width =
1834 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1835 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1836 chandef->center_freq1 =
1837 nla_get_u32(
1838 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1839 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1840 chandef->center_freq2 =
1841 nla_get_u32(
1842 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1843 }
1844
9f5e8f6e 1845 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1846 return -EINVAL;
1847
9f5e8f6e
JB		 1848 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1849 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1850 return -EINVAL;
1851
2f301ab2
SW		 1852 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1853 chandef->width == NL80211_CHAN_WIDTH_10) &&
1854 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1855 return -EINVAL;
1856
683b6d3b
JB		 1857 return 0;
1858}
1859
f444de05
JB		 1860static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1861 struct wireless_dev *wdev,
1862 struct genl_info *info)
1863{
683b6d3b 1864 struct cfg80211_chan_def chandef;
f444de05 1865 int result;
e8c9bd5b
JB		 1866 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1867
1868 if (wdev)
1869 iftype = wdev->iftype;
f444de05 1870
f444de05
JB		 1871 if (!nl80211_can_set_dev_channel(wdev))
1872 return -EOPNOTSUPP;
1873
683b6d3b
JB		 1874 result = nl80211_parse_chandef(rdev, info, &chandef);
1875 if (result)
1876 return result;
f444de05 1877
e8c9bd5b 1878 switch (iftype) {
aa430da4
JB		 1879 case NL80211_IFTYPE_AP:
1880 case NL80211_IFTYPE_P2P_GO:
1881 if (wdev->beacon_interval) {
1882 result = -EBUSY;
1883 break;
1884 }
683b6d3b 1885 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1886 result = -EINVAL;
1887 break;
1888 }
683b6d3b 1889 wdev->preset_chandef = chandef;
aa430da4
JB		 1890 result = 0;
1891 break;
cc1d2806 1892 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1893 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1894 break;
e8c9bd5b 1895 case NL80211_IFTYPE_MONITOR:
683b6d3b 1896 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1897 break;
aa430da4 1898 default:
e8c9bd5b 1899 result = -EINVAL;
f444de05 1900 }
f444de05
JB		 1901
1902 return result;
1903}
1904
1905static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1906{
4c476991
JB		 1907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1908 struct net_device *netdev = info->user_ptr[1];
f444de05 1909
4c476991 1910 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1911}
1912
e8347eba
BJ		 1913static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1914{
43b19952
JB		 1915 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1916 struct net_device *dev = info->user_ptr[1];
1917 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1918 const u8 *bssid;
e8347eba
BJ		 1919
1920 if (!info->attrs[NL80211_ATTR_MAC])
1921 return -EINVAL;
1922
43b19952
JB		 1923 if (netif_running(dev))
1924 return -EBUSY;
e8347eba 1925
43b19952
JB		 1926 if (!rdev->ops->set_wds_peer)
1927 return -EOPNOTSUPP;
e8347eba 1928
43b19952
JB		 1929 if (wdev->iftype != NL80211_IFTYPE_WDS)
1930 return -EOPNOTSUPP;
e8347eba
BJ		 1931
1932 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1933 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1934}
1935
1936
55682965
JB		 1937static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1938{
1939 struct cfg80211_registered_device *rdev;
f444de05
JB		 1940 struct net_device *netdev = NULL;
1941 struct wireless_dev *wdev;
a1e567c8 1942 int result = 0, rem_txq_params = 0;
31888487 1943 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1944 u32 changed;
1945 u8 retry_short = 0, retry_long = 0;
1946 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1947 u8 coverage_class = 0;
55682965 1948
5fe231e8
JB		 1949 ASSERT_RTNL();
1950
f444de05
JB		 1951 /*
1952 * Try to find the wiphy and netdev. Normally this
1953 * function shouldn't need the netdev, but this is
1954 * done for backward compatibility -- previously
1955 * setting the channel was done per wiphy, but now
1956 * it is per netdev. Previous userland like hostapd
1957 * also passed a netdev to set_wiphy, so that it is
1958 * possible to let that go to the right netdev!
1959 */
4bbf4d56 1960
f444de05
JB		 1961 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1962 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1963
1964 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1965 if (netdev && netdev->ieee80211_ptr)
f444de05 1966 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1967 else
f444de05 1968 netdev = NULL;
4bbf4d56
JB		 1969 }
1970
f444de05 1971 if (!netdev) {
878d9ec7
JB		 1972 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1973 info->attrs);
5fe231e8 1974 if (IS_ERR(rdev))
4c476991 1975 return PTR_ERR(rdev);
f444de05
JB		 1976 wdev = NULL;
1977 netdev = NULL;
1978 result = 0;
71fe96bf 1979 } else
f444de05 1980 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1981
1982 /*
1983 * end workaround code, by now the rdev is available
1984 * and locked, and wdev may or may not be NULL.
1985 */
4bbf4d56
JB		 1986
1987 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1988 result = cfg80211_dev_rename(
1989 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1990
4bbf4d56
JB		 1991 if (result)
1992 goto bad_res;
31888487
JM		 1993
1994 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1995 struct ieee80211_txq_params txq_params;
1996 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1997
1998 if (!rdev->ops->set_txq_params) {
1999 result = -EOPNOTSUPP;
2000 goto bad_res;
2001 }
2002
f70f01c2
EP		 2003 if (!netdev) {
2004 result = -EINVAL;
2005 goto bad_res;
2006 }
2007
133a3ff2
JB		 2008 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2009 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
2010 result = -EINVAL;
2011 goto bad_res;
2012 }
2013
2b5f8b0b
JB		 2014 if (!netif_running(netdev)) {
2015 result = -ENETDOWN;
2016 goto bad_res;
2017 }
2018
31888487
JM		 2019 nla_for_each_nested(nl_txq_params,
2020 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2021 rem_txq_params) {
2022 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2023 nla_data(nl_txq_params),
2024 nla_len(nl_txq_params),
2025 txq_params_policy);
2026 result = parse_txq_params(tb, &txq_params);
2027 if (result)
2028 goto bad_res;
2029
e35e4d28
HG		 2030 result = rdev_set_txq_params(rdev, netdev,
2031 &txq_params);
31888487
JM		 2032 if (result)
2033 goto bad_res;
2034 }
2035 }
55682965 2036
72bdcf34 2037 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 2038 result = __nl80211_set_channel(rdev,
2039 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2040 info);
72bdcf34
JM		 2041 if (result)
2042 goto bad_res;
2043 }
2044
98d2ff8b 2045 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2046 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2047 enum nl80211_tx_power_setting type;
2048 int idx, mbm = 0;
2049
c8442118
JB		 2050 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2051 txp_wdev = NULL;
2052
98d2ff8b 2053 if (!rdev->ops->set_tx_power) {
60ea385f 2054 result = -EOPNOTSUPP;
98d2ff8b
JO		 2055 goto bad_res;
2056 }
2057
2058 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2059 type = nla_get_u32(info->attrs[idx]);
2060
2061 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2062 (type != NL80211_TX_POWER_AUTOMATIC)) {
2063 result = -EINVAL;
2064 goto bad_res;
2065 }
2066
2067 if (type != NL80211_TX_POWER_AUTOMATIC) {
2068 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2069 mbm = nla_get_u32(info->attrs[idx]);
2070 }
2071
c8442118 2072 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 2073 if (result)
2074 goto bad_res;
2075 }
2076
afe0cbf8
BR		 2077 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2078 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2079 u32 tx_ant, rx_ant;
7f531e03
BR		 2080 if ((!rdev->wiphy.available_antennas_tx &&
2081 !rdev->wiphy.available_antennas_rx) ||
2082 !rdev->ops->set_antenna) {
afe0cbf8
BR		 2083 result = -EOPNOTSUPP;
2084 goto bad_res;
2085 }
2086
2087 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2088 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2089
a7ffac95 2090 /* reject antenna configurations which don't match the
7f531e03
BR		 2091 * available antenna masks, except for the "all" mask */
2092 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2093 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2094 result = -EINVAL;
2095 goto bad_res;
2096 }
2097
7f531e03
BR		 2098 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2099 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2100
e35e4d28 2101 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2102 if (result)
2103 goto bad_res;
2104 }
2105
b9a5f8ca
JM		 2106 changed = 0;
2107
2108 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2109 retry_short = nla_get_u8(
2110 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2111 if (retry_short == 0) {
2112 result = -EINVAL;
2113 goto bad_res;
2114 }
2115 changed |= WIPHY_PARAM_RETRY_SHORT;
2116 }
2117
2118 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2119 retry_long = nla_get_u8(
2120 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2121 if (retry_long == 0) {
2122 result = -EINVAL;
2123 goto bad_res;
2124 }
2125 changed |= WIPHY_PARAM_RETRY_LONG;
2126 }
2127
2128 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2129 frag_threshold = nla_get_u32(
2130 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2131 if (frag_threshold < 256) {
2132 result = -EINVAL;
2133 goto bad_res;
2134 }
2135 if (frag_threshold != (u32) -1) {
2136 /*
2137 * Fragments (apart from the last one) are required to
2138 * have even length. Make the fragmentation code
2139 * simpler by stripping LSB should someone try to use
2140 * odd threshold value.
2141 */
2142 frag_threshold &= ~0x1;
2143 }
2144 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2145 }
2146
2147 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2148 rts_threshold = nla_get_u32(
2149 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2150 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2151 }
2152
81077e82
LT		 2153 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2154 coverage_class = nla_get_u8(
2155 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2156 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2157 }
2158
b9a5f8ca
JM		 2159 if (changed) {
2160 u8 old_retry_short, old_retry_long;
2161 u32 old_frag_threshold, old_rts_threshold;
81077e82 2162 u8 old_coverage_class;
b9a5f8ca
JM		 2163
2164 if (!rdev->ops->set_wiphy_params) {
2165 result = -EOPNOTSUPP;
2166 goto bad_res;
2167 }
2168
2169 old_retry_short = rdev->wiphy.retry_short;
2170 old_retry_long = rdev->wiphy.retry_long;
2171 old_frag_threshold = rdev->wiphy.frag_threshold;
2172 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2173 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2174
2175 if (changed & WIPHY_PARAM_RETRY_SHORT)
2176 rdev->wiphy.retry_short = retry_short;
2177 if (changed & WIPHY_PARAM_RETRY_LONG)
2178 rdev->wiphy.retry_long = retry_long;
2179 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2180 rdev->wiphy.frag_threshold = frag_threshold;
2181 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2182 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2183 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2184 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2185
e35e4d28 2186 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2187 if (result) {
2188 rdev->wiphy.retry_short = old_retry_short;
2189 rdev->wiphy.retry_long = old_retry_long;
2190 rdev->wiphy.frag_threshold = old_frag_threshold;
2191 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2192 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2193 }
2194 }
72bdcf34 2195
306d6112 2196 bad_res:
f444de05
JB		 2197 if (netdev)
2198 dev_put(netdev);
55682965
JB		 2199 return result;
2200}
2201
71bbc994
JB		 2202static inline u64 wdev_id(struct wireless_dev *wdev)
2203{
2204 return (u64)wdev->identifier |
2205 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2206}
55682965 2207
683b6d3b 2208static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2209 const struct cfg80211_chan_def *chandef)
683b6d3b 2210{
9f5e8f6e 2211 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2212
683b6d3b
JB		 2213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2214 chandef->chan->center_freq))
2215 return -ENOBUFS;
3d9d1d66
JB		 2216 switch (chandef->width) {
2217 case NL80211_CHAN_WIDTH_20_NOHT:
2218 case NL80211_CHAN_WIDTH_20:
2219 case NL80211_CHAN_WIDTH_40:
2220 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2221 cfg80211_get_chandef_type(chandef)))
2222 return -ENOBUFS;
2223 break;
2224 default:
2225 break;
2226 }
2227 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2228 return -ENOBUFS;
2229 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2230 return -ENOBUFS;
2231 if (chandef->center_freq2 &&
2232 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2233 return -ENOBUFS;
2234 return 0;
2235}
2236
15e47304 2237static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2238 struct cfg80211_registered_device *rdev,
72fb2abc 2239 struct wireless_dev *wdev)
55682965 2240{
72fb2abc 2241 struct net_device *dev = wdev->netdev;
55682965
JB		 2242 void *hdr;
2243
15e47304 2244 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2245 if (!hdr)
2246 return -1;
2247
72fb2abc
JB		 2248 if (dev &&
2249 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2250 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2251 goto nla_put_failure;
2252
2253 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2254 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2255 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2256 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2257 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2258 rdev->devlist_generation ^
2259 (cfg80211_rdev_list_generation << 2)))
2260 goto nla_put_failure;
f5ea9120 2261
5b7ccaf3 2262 if (rdev->ops->get_channel) {
683b6d3b
JB		 2263 int ret;
2264 struct cfg80211_chan_def chandef;
2265
2266 ret = rdev_get_channel(rdev, wdev, &chandef);
2267 if (ret == 0) {
2268 if (nl80211_send_chandef(msg, &chandef))
2269 goto nla_put_failure;
2270 }
d91df0e3
PF		 2271 }
2272
b84e7a05
AQ		 2273 if (wdev->ssid_len) {
2274 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2275 goto nla_put_failure;
2276 }
2277
55682965
JB		 2278 return genlmsg_end(msg, hdr);
2279
2280 nla_put_failure:
bc3ed28c
TG		 2281 genlmsg_cancel(msg, hdr);
2282 return -EMSGSIZE;
55682965
JB		 2283}
2284
2285static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2286{
2287 int wp_idx = 0;
2288 int if_idx = 0;
2289 int wp_start = cb->args[0];
2290 int if_start = cb->args[1];
f5ea9120 2291 struct cfg80211_registered_device *rdev;
55682965
JB		 2292 struct wireless_dev *wdev;
2293
5fe231e8 2294 rtnl_lock();
f5ea9120
JB		 2295 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2296 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2297 continue;
bba95fef
JB		 2298 if (wp_idx < wp_start) {
2299 wp_idx++;
55682965 2300 continue;
bba95fef 2301 }
55682965
JB		 2302 if_idx = 0;
2303
89a54e48 2304 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2305 if (if_idx < if_start) {
2306 if_idx++;
55682965 2307 continue;
bba95fef 2308 }
15e47304 2309 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2310 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2311 rdev, wdev) < 0) {
bba95fef
JB		 2312 goto out;
2313 }
2314 if_idx++;
55682965 2315 }
bba95fef
JB		 2316
2317 wp_idx++;
55682965 2318 }
bba95fef 2319 out:
5fe231e8 2320 rtnl_unlock();
55682965
JB		 2321
2322 cb->args[0] = wp_idx;
2323 cb->args[1] = if_idx;
2324
2325 return skb->len;
2326}
2327
2328static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2329{
2330 struct sk_buff *msg;
4c476991 2331 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2332 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2333
fd2120ca 2334 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2335 if (!msg)
4c476991 2336 return -ENOMEM;
55682965 2337
15e47304 2338 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2339 dev, wdev) < 0) {
4c476991
JB		 2340 nlmsg_free(msg);
2341 return -ENOBUFS;
2342 }
55682965 2343
134e6375 2344 return genlmsg_reply(msg, info);
55682965
JB		 2345}
2346
66f7ac50
MW		 2347static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2348 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2349 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2350 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2351 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2352 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2353 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2354};
2355
2356static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2357{
2358 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2359 int flag;
2360
2361 *mntrflags = 0;
2362
2363 if (!nla)
2364 return -EINVAL;
2365
2366 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2367 nla, mntr_flags_policy))
2368 return -EINVAL;
2369
2370 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2371 if (flags[flag])
2372 *mntrflags |= (1<<flag);
2373
2374 return 0;
2375}
2376
9bc383de 2377static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2378 struct net_device *netdev, u8 use_4addr,
2379 enum nl80211_iftype iftype)
9bc383de 2380{
ad4bb6f8 2381 if (!use_4addr) {
f350a0a8 2382 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2383 return -EBUSY;
9bc383de 2384 return 0;
ad4bb6f8 2385 }
9bc383de
JB		 2386
2387 switch (iftype) {
2388 case NL80211_IFTYPE_AP_VLAN:
2389 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2390 return 0;
2391 break;
2392 case NL80211_IFTYPE_STATION:
2393 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2394 return 0;
2395 break;
2396 default:
2397 break;
2398 }
2399
2400 return -EOPNOTSUPP;
2401}
2402
55682965
JB		 2403static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2404{
4c476991 2405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2406 struct vif_params params;
e36d56b6 2407 int err;
04a773ad 2408 enum nl80211_iftype otype, ntype;
4c476991 2409 struct net_device *dev = info->user_ptr[1];
92ffe055 2410 u32 _flags, *flags = NULL;
ac7f9cfa 2411 bool change = false;
55682965 2412
2ec600d6
LCC		 2413 memset(&params, 0, sizeof(params));
2414
04a773ad 2415 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2416
723b038d 2417 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2418 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2419 if (otype != ntype)
ac7f9cfa 2420 change = true;
4c476991
JB		 2421 if (ntype > NL80211_IFTYPE_MAX)
2422 return -EINVAL;
723b038d
JB		 2423 }
2424
92ffe055 2425 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2426 struct wireless_dev *wdev = dev->ieee80211_ptr;
2427
4c476991
JB		 2428 if (ntype != NL80211_IFTYPE_MESH_POINT)
2429 return -EINVAL;
29cbe68c
JB		 2430 if (netif_running(dev))
2431 return -EBUSY;
2432
2433 wdev_lock(wdev);
2434 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2435 IEEE80211_MAX_MESH_ID_LEN);
2436 wdev->mesh_id_up_len =
2437 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2438 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2439 wdev->mesh_id_up_len);
2440 wdev_unlock(wdev);
2ec600d6
LCC		 2441 }
2442
8b787643
FF		 2443 if (info->attrs[NL80211_ATTR_4ADDR]) {
2444 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2445 change = true;
ad4bb6f8 2446 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2447 if (err)
4c476991 2448 return err;
8b787643
FF		 2449 } else {
2450 params.use_4addr = -1;
2451 }
2452
92ffe055 2453 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2454 if (ntype != NL80211_IFTYPE_MONITOR)
2455 return -EINVAL;
92ffe055
JB		 2456 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2457 &_flags);
ac7f9cfa 2458 if (err)
4c476991 2459 return err;
ac7f9cfa
JB		 2460
2461 flags = &_flags;
2462 change = true;
92ffe055 2463 }
3b85875a 2464
18003297 2465 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2466 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2467 return -EOPNOTSUPP;
2468
ac7f9cfa 2469 if (change)
3d54d255 2470 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2471 else
2472 err = 0;
60719ffd 2473
9bc383de
JB		 2474 if (!err && params.use_4addr != -1)
2475 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2476
55682965
JB		 2477 return err;
2478}
2479
2480static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2481{
4c476991 2482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2483 struct vif_params params;
84efbb84 2484 struct wireless_dev *wdev;
1c90f9d4 2485 struct sk_buff *msg;
55682965
JB		 2486 int err;
2487 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2488 u32 flags;
55682965 2489
2ec600d6
LCC		 2490 memset(&params, 0, sizeof(params));
2491
55682965
JB		 2492 if (!info->attrs[NL80211_ATTR_IFNAME])
2493 return -EINVAL;
2494
2495 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2496 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2497 if (type > NL80211_IFTYPE_MAX)
2498 return -EINVAL;
2499 }
2500
79c97e97 2501 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2502 !(rdev->wiphy.interface_modes & (1 << type)))
2503 return -EOPNOTSUPP;
55682965 2504
1c18f145
AS		 2505 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2506 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2507 ETH_ALEN);
2508 if (!is_valid_ether_addr(params.macaddr))
2509 return -EADDRNOTAVAIL;
2510 }
2511
9bc383de 2512 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2513 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2514 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2515 if (err)
4c476991 2516 return err;
9bc383de 2517 }
8b787643 2518
1c90f9d4
JB		 2519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2520 if (!msg)
2521 return -ENOMEM;
2522
66f7ac50
MW		 2523 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2524 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2525 &flags);
e057d3c3 2526
18003297 2527 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2528 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2529 return -EOPNOTSUPP;
2530
e35e4d28
HG		 2531 wdev = rdev_add_virtual_intf(rdev,
2532 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2533 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2534 if (IS_ERR(wdev)) {
2535 nlmsg_free(msg);
84efbb84 2536 return PTR_ERR(wdev);
1c90f9d4 2537 }
2ec600d6 2538
98104fde
JB		 2539 switch (type) {
2540 case NL80211_IFTYPE_MESH_POINT:
2541 if (!info->attrs[NL80211_ATTR_MESH_ID])
2542 break;
29cbe68c
JB		 2543 wdev_lock(wdev);
2544 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2545 IEEE80211_MAX_MESH_ID_LEN);
2546 wdev->mesh_id_up_len =
2547 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2548 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2549 wdev->mesh_id_up_len);
2550 wdev_unlock(wdev);
98104fde
JB		 2551 break;
2552 case NL80211_IFTYPE_P2P_DEVICE:
2553 /*
2554 * P2P Device doesn't have a netdev, so doesn't go
2555 * through the netdev notifier and must be added here
2556 */
2557 mutex_init(&wdev->mtx);
2558 INIT_LIST_HEAD(&wdev->event_list);
2559 spin_lock_init(&wdev->event_lock);
2560 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2561 spin_lock_init(&wdev->mgmt_registrations_lock);
2562
98104fde
JB		 2563 wdev->identifier = ++rdev->wdev_id;
2564 list_add_rcu(&wdev->list, &rdev->wdev_list);
2565 rdev->devlist_generation++;
98104fde
JB		 2566 break;
2567 default:
2568 break;
29cbe68c
JB		 2569 }
2570
15e47304 2571 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2572 rdev, wdev) < 0) {
2573 nlmsg_free(msg);
2574 return -ENOBUFS;
2575 }
2576
2577 return genlmsg_reply(msg, info);
55682965
JB		 2578}
2579
2580static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2581{
4c476991 2582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2583 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2584
4c476991
JB		 2585 if (!rdev->ops->del_virtual_intf)
2586 return -EOPNOTSUPP;
55682965 2587
84efbb84
JB		 2588 /*
2589 * If we remove a wireless device without a netdev then clear
2590 * user_ptr[1] so that nl80211_post_doit won't dereference it
2591 * to check if it needs to do dev_put(). Otherwise it crashes
2592 * since the wdev has been freed, unlike with a netdev where
2593 * we need the dev_put() for the netdev to really be freed.
2594 */
2595 if (!wdev->netdev)
2596 info->user_ptr[1] = NULL;
2597
e35e4d28 2598 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2599}
2600
1d9d9213
SW		 2601static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2602{
2603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2604 struct net_device *dev = info->user_ptr[1];
2605 u16 noack_map;
2606
2607 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2608 return -EINVAL;
2609
2610 if (!rdev->ops->set_noack_map)
2611 return -EOPNOTSUPP;
2612
2613 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2614
e35e4d28 2615 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2616}
2617
41ade00f
JB		 2618struct get_key_cookie {
2619 struct sk_buff *msg;
2620 int error;
b9454e83 2621 int idx;
41ade00f
JB		 2622};
2623
2624static void get_key_callback(void *c, struct key_params *params)
2625{
b9454e83 2626 struct nlattr *key;
41ade00f
JB		 2627 struct get_key_cookie *cookie = c;
2628
9360ffd1
DM		 2629 if ((params->key &&
2630 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2631 params->key_len, params->key)) ||
2632 (params->seq &&
2633 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2634 params->seq_len, params->seq)) ||
2635 (params->cipher &&
2636 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2637 params->cipher)))
2638 goto nla_put_failure;
41ade00f 2639
b9454e83
JB		 2640 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2641 if (!key)
2642 goto nla_put_failure;
2643
9360ffd1
DM		 2644 if ((params->key &&
2645 nla_put(cookie->msg, NL80211_KEY_DATA,
2646 params->key_len, params->key)) ||
2647 (params->seq &&
2648 nla_put(cookie->msg, NL80211_KEY_SEQ,
2649 params->seq_len, params->seq)) ||
2650 (params->cipher &&
2651 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2652 params->cipher)))
2653 goto nla_put_failure;
b9454e83 2654
9360ffd1
DM		 2655 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2656 goto nla_put_failure;
b9454e83
JB		 2657
2658 nla_nest_end(cookie->msg, key);
2659
41ade00f
JB		 2660 return;
2661 nla_put_failure:
2662 cookie->error = 1;
2663}
2664
2665static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2666{
4c476991 2667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2668 int err;
4c476991 2669 struct net_device *dev = info->user_ptr[1];
41ade00f 2670 u8 key_idx = 0;
e31b8213
JB		 2671 const u8 *mac_addr = NULL;
2672 bool pairwise;
41ade00f
JB		 2673 struct get_key_cookie cookie = {
2674 .error = 0,
2675 };
2676 void *hdr;
2677 struct sk_buff *msg;
2678
2679 if (info->attrs[NL80211_ATTR_KEY_IDX])
2680 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2681
3cfcf6ac 2682 if (key_idx > 5)
41ade00f
JB		 2683 return -EINVAL;
2684
2685 if (info->attrs[NL80211_ATTR_MAC])
2686 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2687
e31b8213
JB		 2688 pairwise = !!mac_addr;
2689 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2690 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2691 if (kt >= NUM_NL80211_KEYTYPES)
2692 return -EINVAL;
2693 if (kt != NL80211_KEYTYPE_GROUP &&
2694 kt != NL80211_KEYTYPE_PAIRWISE)
2695 return -EINVAL;
2696 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2697 }
2698
4c476991
JB		 2699 if (!rdev->ops->get_key)
2700 return -EOPNOTSUPP;
41ade00f 2701
fd2120ca 2702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2703 if (!msg)
2704 return -ENOMEM;
41ade00f 2705
15e47304 2706 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2707 NL80211_CMD_NEW_KEY);
cb35fba3 2708 if (!hdr)
9fe271af 2709 goto nla_put_failure;
41ade00f
JB		 2710
2711 cookie.msg = msg;
b9454e83 2712 cookie.idx = key_idx;
41ade00f 2713
9360ffd1
DM		 2714 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2715 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2716 goto nla_put_failure;
2717 if (mac_addr &&
2718 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2719 goto nla_put_failure;
41ade00f 2720
e31b8213
JB		 2721 if (pairwise && mac_addr &&
2722 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2723 return -ENOENT;
2724
e35e4d28
HG		 2725 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2726 get_key_callback);
41ade00f
JB		 2727
2728 if (err)
6c95e2a2 2729 goto free_msg;
41ade00f
JB		 2730
2731 if (cookie.error)
2732 goto nla_put_failure;
2733
2734 genlmsg_end(msg, hdr);
4c476991 2735 return genlmsg_reply(msg, info);
41ade00f
JB		 2736
2737 nla_put_failure:
2738 err = -ENOBUFS;
6c95e2a2 2739 free_msg:
41ade00f 2740 nlmsg_free(msg);
41ade00f
JB		 2741 return err;
2742}
2743
2744static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2745{
4c476991 2746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2747 struct key_parse key;
41ade00f 2748 int err;
4c476991 2749 struct net_device *dev = info->user_ptr[1];
41ade00f 2750
b9454e83
JB		 2751 err = nl80211_parse_key(info, &key);
2752 if (err)
2753 return err;
41ade00f 2754
b9454e83 2755 if (key.idx < 0)
41ade00f
JB		 2756 return -EINVAL;
2757
b9454e83
JB		 2758 /* only support setting default key */
2759 if (!key.def && !key.defmgmt)
41ade00f
JB		 2760 return -EINVAL;
2761
dbd2fd65 2762 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2763
dbd2fd65
JB		 2764 if (key.def) {
2765 if (!rdev->ops->set_default_key) {
2766 err = -EOPNOTSUPP;
2767 goto out;
2768 }
41ade00f 2769
dbd2fd65
JB		 2770 err = nl80211_key_allowed(dev->ieee80211_ptr);
2771 if (err)
2772 goto out;
2773
e35e4d28 2774 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2775 key.def_uni, key.def_multi);
2776
2777 if (err)
2778 goto out;
fffd0934 2779
3d23e349 2780#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2781 dev->ieee80211_ptr->wext.default_key = key.idx;
2782#endif
2783 } else {
2784 if (key.def_uni || !key.def_multi) {
2785 err = -EINVAL;
2786 goto out;
2787 }
2788
2789 if (!rdev->ops->set_default_mgmt_key) {
2790 err = -EOPNOTSUPP;
2791 goto out;
2792 }
2793
2794 err = nl80211_key_allowed(dev->ieee80211_ptr);
2795 if (err)
2796 goto out;
2797
e35e4d28 2798 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2799 if (err)
2800 goto out;
2801
2802#ifdef CONFIG_CFG80211_WEXT
2803 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2804#endif
dbd2fd65
JB		 2805 }
2806
2807 out:
fffd0934 2808 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2809
41ade00f
JB		 2810 return err;
2811}
2812
2813static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2814{
4c476991 2815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2816 int err;
4c476991 2817 struct net_device *dev = info->user_ptr[1];
b9454e83 2818 struct key_parse key;
e31b8213 2819 const u8 *mac_addr = NULL;
41ade00f 2820
b9454e83
JB		 2821 err = nl80211_parse_key(info, &key);
2822 if (err)
2823 return err;
41ade00f 2824
b9454e83 2825 if (!key.p.key)
41ade00f
JB		 2826 return -EINVAL;
2827
41ade00f
JB		 2828 if (info->attrs[NL80211_ATTR_MAC])
2829 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2830
e31b8213
JB		 2831 if (key.type == -1) {
2832 if (mac_addr)
2833 key.type = NL80211_KEYTYPE_PAIRWISE;
2834 else
2835 key.type = NL80211_KEYTYPE_GROUP;
2836 }
2837
2838 /* for now */
2839 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2840 key.type != NL80211_KEYTYPE_GROUP)
2841 return -EINVAL;
2842
4c476991
JB		 2843 if (!rdev->ops->add_key)
2844 return -EOPNOTSUPP;
25e47c18 2845
e31b8213
JB		 2846 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2847 key.type == NL80211_KEYTYPE_PAIRWISE,
2848 mac_addr))
4c476991 2849 return -EINVAL;
41ade00f 2850
fffd0934
JB		 2851 wdev_lock(dev->ieee80211_ptr);
2852 err = nl80211_key_allowed(dev->ieee80211_ptr);
2853 if (!err)
e35e4d28
HG		 2854 err = rdev_add_key(rdev, dev, key.idx,
2855 key.type == NL80211_KEYTYPE_PAIRWISE,
2856 mac_addr, &key.p);
fffd0934 2857 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2858
41ade00f
JB		 2859 return err;
2860}
2861
2862static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2863{
4c476991 2864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2865 int err;
4c476991 2866 struct net_device *dev = info->user_ptr[1];
41ade00f 2867 u8 *mac_addr = NULL;
b9454e83 2868 struct key_parse key;
41ade00f 2869
b9454e83
JB		 2870 err = nl80211_parse_key(info, &key);
2871 if (err)
2872 return err;
41ade00f
JB		 2873
2874 if (info->attrs[NL80211_ATTR_MAC])
2875 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2876
e31b8213
JB		 2877 if (key.type == -1) {
2878 if (mac_addr)
2879 key.type = NL80211_KEYTYPE_PAIRWISE;
2880 else
2881 key.type = NL80211_KEYTYPE_GROUP;
2882 }
2883
2884 /* for now */
2885 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2886 key.type != NL80211_KEYTYPE_GROUP)
2887 return -EINVAL;
2888
4c476991
JB		 2889 if (!rdev->ops->del_key)
2890 return -EOPNOTSUPP;
41ade00f 2891
fffd0934
JB		 2892 wdev_lock(dev->ieee80211_ptr);
2893 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2894
2895 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2896 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2897 err = -ENOENT;
2898
fffd0934 2899 if (!err)
e35e4d28
HG		 2900 err = rdev_del_key(rdev, dev, key.idx,
2901 key.type == NL80211_KEYTYPE_PAIRWISE,
2902 mac_addr);
41ade00f 2903
3d23e349 2904#ifdef CONFIG_CFG80211_WEXT
08645126 2905 if (!err) {
b9454e83 2906 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2907 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2908 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2909 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2910 }
2911#endif
fffd0934 2912 wdev_unlock(dev->ieee80211_ptr);
08645126 2913
41ade00f
JB		 2914 return err;
2915}
2916
77765eaf
VT		 2917/* This function returns an error or the number of nested attributes */
2918static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2919{
2920 struct nlattr *attr;
2921 int n_entries = 0, tmp;
2922
2923 nla_for_each_nested(attr, nl_attr, tmp) {
2924 if (nla_len(attr) != ETH_ALEN)
2925 return -EINVAL;
2926
2927 n_entries++;
2928 }
2929
2930 return n_entries;
2931}
2932
2933/*
2934 * This function parses ACL information and allocates memory for ACL data.
2935 * On successful return, the calling function is responsible to free the
2936 * ACL buffer returned by this function.
2937 */
2938static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2939 struct genl_info *info)
2940{
2941 enum nl80211_acl_policy acl_policy;
2942 struct nlattr *attr;
2943 struct cfg80211_acl_data *acl;
2944 int i = 0, n_entries, tmp;
2945
2946 if (!wiphy->max_acl_mac_addrs)
2947 return ERR_PTR(-EOPNOTSUPP);
2948
2949 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2950 return ERR_PTR(-EINVAL);
2951
2952 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2953 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2954 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2955 return ERR_PTR(-EINVAL);
2956
2957 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2958 return ERR_PTR(-EINVAL);
2959
2960 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2961 if (n_entries < 0)
2962 return ERR_PTR(n_entries);
2963
2964 if (n_entries > wiphy->max_acl_mac_addrs)
2965 return ERR_PTR(-ENOTSUPP);
2966
2967 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2968 GFP_KERNEL);
2969 if (!acl)
2970 return ERR_PTR(-ENOMEM);
2971
2972 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2973 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2974 i++;
2975 }
2976
2977 acl->n_acl_entries = n_entries;
2978 acl->acl_policy = acl_policy;
2979
2980 return acl;
2981}
2982
2983static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2984{
2985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2986 struct net_device *dev = info->user_ptr[1];
2987 struct cfg80211_acl_data *acl;
2988 int err;
2989
2990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2991 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2992 return -EOPNOTSUPP;
2993
2994 if (!dev->ieee80211_ptr->beacon_interval)
2995 return -EINVAL;
2996
2997 acl = parse_acl_data(&rdev->wiphy, info);
2998 if (IS_ERR(acl))
2999 return PTR_ERR(acl);
3000
3001 err = rdev_set_mac_acl(rdev, dev, acl);
3002
3003 kfree(acl);
3004
3005 return err;
3006}
3007
a1193be8 3008static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3009 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3010{
8860020e 3011 bool haveinfo = false;
ed1b6cc7 3012
a1193be8
SW		 3013 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3014 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3015 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3016 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3017 return -EINVAL;
3018
8860020e 3019 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3020
a1193be8
SW		 3021 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3022 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3023 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3024 if (!bcn->head_len)
3025 return -EINVAL;
3026 haveinfo = true;
ed1b6cc7
JB		 3027 }
3028
a1193be8
SW		 3029 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3030 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3031 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3032 haveinfo = true;
ed1b6cc7
JB		 3033 }
3034
4c476991
JB		 3035 if (!haveinfo)
3036 return -EINVAL;
3b85875a 3037
a1193be8
SW		 3038 if (attrs[NL80211_ATTR_IE]) {
3039 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3040 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3041 }
3042
a1193be8 3043 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3044 bcn->proberesp_ies =
a1193be8 3045 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3046 bcn->proberesp_ies_len =
a1193be8 3047 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3048 }
3049
a1193be8 3050 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3051 bcn->assocresp_ies =
a1193be8 3052 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3053 bcn->assocresp_ies_len =
a1193be8 3054 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3055 }
3056
a1193be8
SW		 3057 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3058 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3059 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3060 }
3061
8860020e
JB		 3062 return 0;
3063}
3064
46c1dd0c
FF		 3065static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3066 struct cfg80211_ap_settings *params)
3067{
3068 struct wireless_dev *wdev;
3069 bool ret = false;
3070
89a54e48 3071 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3072 if (wdev->iftype != NL80211_IFTYPE_AP &&
3073 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3074 continue;
3075
683b6d3b 3076 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3077 continue;
3078
683b6d3b 3079 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3080 ret = true;
3081 break;
3082 }
3083
46c1dd0c
FF		 3084 return ret;
3085}
3086
e39e5b5e
JM		 3087static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3088 enum nl80211_auth_type auth_type,
3089 enum nl80211_commands cmd)
3090{
3091 if (auth_type > NL80211_AUTHTYPE_MAX)
3092 return false;
3093
3094 switch (cmd) {
3095 case NL80211_CMD_AUTHENTICATE:
3096 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3097 auth_type == NL80211_AUTHTYPE_SAE)
3098 return false;
3099 return true;
3100 case NL80211_CMD_CONNECT:
3101 case NL80211_CMD_START_AP:
3102 /* SAE not supported yet */
3103 if (auth_type == NL80211_AUTHTYPE_SAE)
3104 return false;
3105 return true;
3106 default:
3107 return false;
3108 }
3109}
3110
8860020e
JB		 3111static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3112{
3113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3114 struct net_device *dev = info->user_ptr[1];
3115 struct wireless_dev *wdev = dev->ieee80211_ptr;
3116 struct cfg80211_ap_settings params;
3117 int err;
04f39047 3118 u8 radar_detect_width = 0;
8860020e
JB		 3119
3120 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3121 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3122 return -EOPNOTSUPP;
3123
3124 if (!rdev->ops->start_ap)
3125 return -EOPNOTSUPP;
3126
3127 if (wdev->beacon_interval)
3128 return -EALREADY;
3129
3130 memset(&params, 0, sizeof(params));
3131
3132 /* these are required for START_AP */
3133 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3134 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3135 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3136 return -EINVAL;
3137
a1193be8 3138 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3139 if (err)
3140 return err;
3141
3142 params.beacon_interval =
3143 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3144 params.dtim_period =
3145 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3146
3147 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3148 if (err)
3149 return err;
3150
3151 /*
3152 * In theory, some of these attributes should be required here
3153 * but since they were not used when the command was originally
3154 * added, keep them optional for old user space programs to let
3155 * them continue to work with drivers that do not need the
3156 * additional information -- drivers must check!
3157 */
3158 if (info->attrs[NL80211_ATTR_SSID]) {
3159 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3160 params.ssid_len =
3161 nla_len(info->attrs[NL80211_ATTR_SSID]);
3162 if (params.ssid_len == 0 ||
3163 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3164 return -EINVAL;
3165 }
3166
3167 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3168 params.hidden_ssid = nla_get_u32(
3169 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3170 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3171 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3172 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3173 return -EINVAL;
3174 }
3175
3176 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3177
3178 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3179 params.auth_type = nla_get_u32(
3180 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3181 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3182 NL80211_CMD_START_AP))
8860020e
JB		 3183 return -EINVAL;
3184 } else
3185 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3186
3187 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3188 NL80211_MAX_NR_CIPHER_SUITES);
3189 if (err)
3190 return err;
3191
1b658f11
VT		 3192 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3193 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3194 return -EOPNOTSUPP;
3195 params.inactivity_timeout = nla_get_u16(
3196 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3197 }
3198
53cabad7
JB		 3199 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3201 return -EINVAL;
3202 params.p2p_ctwindow =
3203 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3204 if (params.p2p_ctwindow > 127)
3205 return -EINVAL;
3206 if (params.p2p_ctwindow != 0 &&
3207 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3208 return -EINVAL;
3209 }
3210
3211 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3212 u8 tmp;
3213
3214 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3215 return -EINVAL;
3216 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3217 if (tmp > 1)
3218 return -EINVAL;
3219 params.p2p_opp_ps = tmp;
3220 if (params.p2p_opp_ps != 0 &&
3221 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3222 return -EINVAL;
3223 }
3224
aa430da4 3225 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3226 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3227 if (err)
3228 return err;
3229 } else if (wdev->preset_chandef.chan) {
3230 params.chandef = wdev->preset_chandef;
46c1dd0c 3231 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3232 return -EINVAL;
3233
683b6d3b 3234 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3235 return -EINVAL;
3236
04f39047
SW		 3237 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3238 if (err < 0)
3239 return err;
3240 if (err) {
3241 radar_detect_width = BIT(params.chandef.width);
3242 params.radar_required = true;
3243 }
3244
04f39047
SW		 3245 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3246 params.chandef.chan,
3247 CHAN_MODE_SHARED,
3248 radar_detect_width);
e4e32459
MK		 3249 if (err)
3250 return err;
3251
77765eaf
VT		 3252 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3253 params.acl = parse_acl_data(&rdev->wiphy, info);
3254 if (IS_ERR(params.acl))
3255 return PTR_ERR(params.acl);
3256 }
3257
c56589ed 3258 wdev_lock(wdev);
e35e4d28 3259 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3260 if (!err) {
683b6d3b 3261 wdev->preset_chandef = params.chandef;
8860020e 3262 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3263 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3264 wdev->ssid_len = params.ssid_len;
3265 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3266 }
c56589ed 3267 wdev_unlock(wdev);
77765eaf
VT		 3268
3269 kfree(params.acl);
3270
56d1893d 3271 return err;
ed1b6cc7
JB		 3272}
3273
8860020e
JB		 3274static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3275{
3276 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3277 struct net_device *dev = info->user_ptr[1];
3278 struct wireless_dev *wdev = dev->ieee80211_ptr;
3279 struct cfg80211_beacon_data params;
3280 int err;
3281
3282 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3283 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3284 return -EOPNOTSUPP;
3285
3286 if (!rdev->ops->change_beacon)
3287 return -EOPNOTSUPP;
3288
3289 if (!wdev->beacon_interval)
3290 return -EINVAL;
3291
a1193be8 3292 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3293 if (err)
3294 return err;
3295
c56589ed
SW		 3296 wdev_lock(wdev);
3297 err = rdev_change_beacon(rdev, dev, &params);
3298 wdev_unlock(wdev);
3299
3300 return err;
8860020e
JB		 3301}
3302
3303static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3304{
4c476991
JB		 3305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3306 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3307
60771780 3308 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3309}
3310
5727ef1b
JB		 3311static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3312 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3313 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3314 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3315 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3316 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3317 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3318};
3319
eccb8e8f 3320static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3321 enum nl80211_iftype iftype,
eccb8e8f 3322 struct station_parameters *params)
5727ef1b
JB		 3323{
3324 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3325 struct nlattr *nla;
5727ef1b
JB		 3326 int flag;
3327
eccb8e8f
JB		 3328 /*
3329 * Try parsing the new attribute first so userspace
3330 * can specify both for older kernels.
3331 */
3332 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3333 if (nla) {
3334 struct nl80211_sta_flag_update *sta_flags;
3335
3336 sta_flags = nla_data(nla);
3337 params->sta_flags_mask = sta_flags->mask;
3338 params->sta_flags_set = sta_flags->set;
77ee7c89 3339 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3340 if ((params->sta_flags_mask |
3341 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3342 return -EINVAL;
3343 return 0;
3344 }
3345
3346 /* if present, parse the old attribute */
5727ef1b 3347
eccb8e8f 3348 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3349 if (!nla)
3350 return 0;
3351
3352 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3353 nla, sta_flags_policy))
3354 return -EINVAL;
3355
bdd3ae3d
JB		 3356 /*
3357 * Only allow certain flags for interface types so that
3358 * other attributes are silently ignored. Remember that
3359 * this is backward compatibility code with old userspace
3360 * and shouldn't be hit in other cases anyway.
3361 */
3362 switch (iftype) {
3363 case NL80211_IFTYPE_AP:
3364 case NL80211_IFTYPE_AP_VLAN:
3365 case NL80211_IFTYPE_P2P_GO:
3366 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3367 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3368 BIT(NL80211_STA_FLAG_WME) |
3369 BIT(NL80211_STA_FLAG_MFP);
3370 break;
3371 case NL80211_IFTYPE_P2P_CLIENT:
3372 case NL80211_IFTYPE_STATION:
3373 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3374 BIT(NL80211_STA_FLAG_TDLS_PEER);
3375 break;
3376 case NL80211_IFTYPE_MESH_POINT:
3377 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3378 BIT(NL80211_STA_FLAG_MFP) |
3379 BIT(NL80211_STA_FLAG_AUTHORIZED);
3380 default:
3381 return -EINVAL;
3382 }
5727ef1b 3383
3383b5a6
JB		 3384 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3385 if (flags[flag]) {
eccb8e8f 3386 params->sta_flags_set |= (1<<flag);
5727ef1b 3387
3383b5a6
JB		 3388 /* no longer support new API additions in old API */
3389 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3390 return -EINVAL;
3391 }
3392 }
3393
5727ef1b
JB		 3394 return 0;
3395}
3396
c8dcfd8a
FF		 3397static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3398 int attr)
3399{
3400 struct nlattr *rate;
8eb41c8d
VK		 3401 u32 bitrate;
3402 u16 bitrate_compat;
c8dcfd8a
FF		 3403
3404 rate = nla_nest_start(msg, attr);
3405 if (!rate)
db9c64cf 3406 return false;
c8dcfd8a
FF		 3407
3408 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3409 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3410 /* report 16-bit bitrate only if we can */
3411 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3412 if (bitrate > 0 &&
3413 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3414 return false;
3415 if (bitrate_compat > 0 &&
3416 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3417 return false;
3418
3419 if (info->flags & RATE_INFO_FLAGS_MCS) {
3420 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3421 return false;
3422 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3423 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3424 return false;
3425 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3426 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3427 return false;
3428 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3429 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3430 return false;
3431 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3432 return false;
3433 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3434 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3435 return false;
3436 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3437 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3438 return false;
3439 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3440 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3441 return false;
3442 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3443 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3444 return false;
3445 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3446 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3447 return false;
3448 }
c8dcfd8a
FF		 3449
3450 nla_nest_end(msg, rate);
3451 return true;
c8dcfd8a
FF		 3452}
3453
119363c7
FF		 3454static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3455 int id)
3456{
3457 void *attr;
3458 int i = 0;
3459
3460 if (!mask)
3461 return true;
3462
3463 attr = nla_nest_start(msg, id);
3464 if (!attr)
3465 return false;
3466
3467 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3468 if (!(mask & BIT(i)))
3469 continue;
3470
3471 if (nla_put_u8(msg, i, signal[i]))
3472 return false;
3473 }
3474
3475 nla_nest_end(msg, attr);
3476
3477 return true;
3478}
3479
15e47304 3480static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3481 int flags,
3482 struct cfg80211_registered_device *rdev,
3483 struct net_device *dev,
98b62183 3484 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3485{
3486 void *hdr;
f4263c98 3487 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3488
15e47304 3489 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3490 if (!hdr)
3491 return -1;
3492
9360ffd1
DM		 3493 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3494 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3495 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3496 goto nla_put_failure;
f5ea9120 3497
2ec600d6
LCC		 3498 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3499 if (!sinfoattr)
fd5b74dc 3500 goto nla_put_failure;
9360ffd1
DM		 3501 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3502 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3503 sinfo->connected_time))
3504 goto nla_put_failure;
3505 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3506 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3507 sinfo->inactive_time))
3508 goto nla_put_failure;
42745e03
VK		 3509 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3510 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3511 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3512 (u32)sinfo->rx_bytes))
9360ffd1 3513 goto nla_put_failure;
42745e03 3514 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3515 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3516 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3517 (u32)sinfo->tx_bytes))
3518 goto nla_put_failure;
3519 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3520 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3521 sinfo->rx_bytes))
3522 goto nla_put_failure;
3523 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3524 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3525 sinfo->tx_bytes))
3526 goto nla_put_failure;
3527 if ((sinfo->filled & STATION_INFO_LLID) &&
3528 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3529 goto nla_put_failure;
3530 if ((sinfo->filled & STATION_INFO_PLID) &&
3531 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3532 goto nla_put_failure;
3533 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3534 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3535 sinfo->plink_state))
3536 goto nla_put_failure;
66266b3a
JL		 3537 switch (rdev->wiphy.signal_type) {
3538 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3539 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3540 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3541 sinfo->signal))
3542 goto nla_put_failure;
3543 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3544 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3545 sinfo->signal_avg))
3546 goto nla_put_failure;
66266b3a
JL		 3547 break;
3548 default:
3549 break;
3550 }
119363c7
FF		 3551 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3552 if (!nl80211_put_signal(msg, sinfo->chains,
3553 sinfo->chain_signal,
3554 NL80211_STA_INFO_CHAIN_SIGNAL))
3555 goto nla_put_failure;
3556 }
3557 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3558 if (!nl80211_put_signal(msg, sinfo->chains,
3559 sinfo->chain_signal_avg,
3560 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3561 goto nla_put_failure;
3562 }
420e7fab 3563 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3564 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3565 NL80211_STA_INFO_TX_BITRATE))
3566 goto nla_put_failure;
3567 }
3568 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3569 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3570 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3571 goto nla_put_failure;
420e7fab 3572 }
9360ffd1
DM		 3573 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3574 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3575 sinfo->rx_packets))
3576 goto nla_put_failure;
3577 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3578 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3579 sinfo->tx_packets))
3580 goto nla_put_failure;
3581 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3582 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3583 sinfo->tx_retries))
3584 goto nla_put_failure;
3585 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3586 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3587 sinfo->tx_failed))
3588 goto nla_put_failure;
3589 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3590 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3591 sinfo->beacon_loss_count))
3592 goto nla_put_failure;
3b1c5a53
MP		 3593 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3594 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3595 sinfo->local_pm))
3596 goto nla_put_failure;
3597 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3598 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3599 sinfo->peer_pm))
3600 goto nla_put_failure;
3601 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3602 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3603 sinfo->nonpeer_pm))
3604 goto nla_put_failure;
f4263c98
PS		 3605 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3606 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3607 if (!bss_param)
3608 goto nla_put_failure;
3609
9360ffd1
DM		 3610 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3611 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3612 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3613 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3614 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3615 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3616 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3617 sinfo->bss_param.dtim_period) ||
3618 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3619 sinfo->bss_param.beacon_interval))
3620 goto nla_put_failure;
f4263c98
PS		 3621
3622 nla_nest_end(msg, bss_param);
3623 }
9360ffd1
DM		 3624 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3625 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3626 sizeof(struct nl80211_sta_flag_update),
3627 &sinfo->sta_flags))
3628 goto nla_put_failure;
7eab0f64
JL		 3629 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3630 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3631 sinfo->t_offset))
3632 goto nla_put_failure;
2ec600d6 3633 nla_nest_end(msg, sinfoattr);
fd5b74dc 3634
9360ffd1
DM		 3635 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3636 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3637 sinfo->assoc_req_ies))
3638 goto nla_put_failure;
50d3dfb7 3639
fd5b74dc
JB		 3640 return genlmsg_end(msg, hdr);
3641
3642 nla_put_failure:
bc3ed28c
TG		 3643 genlmsg_cancel(msg, hdr);
3644 return -EMSGSIZE;
fd5b74dc
JB		 3645}
3646
2ec600d6 3647static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3648 struct netlink_callback *cb)
2ec600d6 3649{
2ec600d6
LCC		 3650 struct station_info sinfo;
3651 struct cfg80211_registered_device *dev;
97990a06 3652 struct wireless_dev *wdev;
2ec600d6 3653 u8 mac_addr[ETH_ALEN];
97990a06 3654 int sta_idx = cb->args[2];
2ec600d6 3655 int err;
2ec600d6 3656
97990a06 3657 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3658 if (err)
3659 return err;
bba95fef 3660
97990a06
JB		 3661 if (!wdev->netdev) {
3662 err = -EINVAL;
3663 goto out_err;
3664 }
3665
bba95fef 3666 if (!dev->ops->dump_station) {
eec60b03 3667 err = -EOPNOTSUPP;
bba95fef
JB		 3668 goto out_err;
3669 }
3670
bba95fef 3671 while (1) {
f612cedf 3672 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3673 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3674 mac_addr, &sinfo);
bba95fef
JB		 3675 if (err == -ENOENT)
3676 break;
3677 if (err)
3b85875a 3678 goto out_err;
bba95fef
JB		 3679
3680 if (nl80211_send_station(skb,
15e47304 3681 NETLINK_CB(cb->skb).portid,
bba95fef 3682 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3683 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3684 &sinfo) < 0)
3685 goto out;
3686
3687 sta_idx++;
3688 }
3689
3690
3691 out:
97990a06 3692 cb->args[2] = sta_idx;
bba95fef 3693 err = skb->len;
bba95fef 3694 out_err:
97990a06 3695 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3696
3697 return err;
2ec600d6 3698}
fd5b74dc 3699
5727ef1b
JB		 3700static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3701{
4c476991
JB		 3702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3703 struct net_device *dev = info->user_ptr[1];
2ec600d6 3704 struct station_info sinfo;
fd5b74dc
JB		 3705 struct sk_buff *msg;
3706 u8 *mac_addr = NULL;
4c476991 3707 int err;
fd5b74dc 3708
2ec600d6 3709 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3710
3711 if (!info->attrs[NL80211_ATTR_MAC])
3712 return -EINVAL;
3713
3714 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3715
4c476991
JB		 3716 if (!rdev->ops->get_station)
3717 return -EOPNOTSUPP;
3b85875a 3718
e35e4d28 3719 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3720 if (err)
4c476991 3721 return err;
2ec600d6 3722
fd2120ca 3723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3724 if (!msg)
4c476991 3725 return -ENOMEM;
fd5b74dc 3726
15e47304 3727 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3728 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3729 nlmsg_free(msg);
3730 return -ENOBUFS;
3731 }
3b85875a 3732
4c476991 3733 return genlmsg_reply(msg, info);
5727ef1b
JB		 3734}
3735
77ee7c89
JB		 3736int cfg80211_check_station_change(struct wiphy *wiphy,
3737 struct station_parameters *params,
3738 enum cfg80211_station_type statype)
3739{
3740 if (params->listen_interval != -1)
3741 return -EINVAL;
3742 if (params->aid)
3743 return -EINVAL;
3744
3745 /* When you run into this, adjust the code below for the new flag */
3746 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3747
3748 switch (statype) {
eef941e6
TP		 3749 case CFG80211_STA_MESH_PEER_KERNEL:
3750 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3751 /*
3752 * No ignoring the TDLS flag here -- the userspace mesh
3753 * code doesn't have the bug of including TDLS in the
3754 * mask everywhere.
3755 */
3756 if (params->sta_flags_mask &
3757 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3758 BIT(NL80211_STA_FLAG_MFP) |
3759 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3760 return -EINVAL;
3761 break;
3762 case CFG80211_STA_TDLS_PEER_SETUP:
3763 case CFG80211_STA_TDLS_PEER_ACTIVE:
3764 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3765 return -EINVAL;
3766 /* ignore since it can't change */
3767 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3768 break;
3769 default:
3770 /* disallow mesh-specific things */
3771 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3772 return -EINVAL;
3773 if (params->local_pm)
3774 return -EINVAL;
3775 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3776 return -EINVAL;
3777 }
3778
3779 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3780 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3781 /* TDLS can't be set, ... */
3782 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3783 return -EINVAL;
3784 /*
3785 * ... but don't bother the driver with it. This works around
3786 * a hostapd/wpa_supplicant issue -- it always includes the
3787 * TLDS_PEER flag in the mask even for AP mode.
3788 */
3789 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3790 }
3791
3792 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3793 /* reject other things that can't change */
3794 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3795 return -EINVAL;
3796 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3797 return -EINVAL;
3798 if (params->supported_rates)
3799 return -EINVAL;
3800 if (params->ext_capab || params->ht_capa || params->vht_capa)
3801 return -EINVAL;
3802 }
3803
3804 if (statype != CFG80211_STA_AP_CLIENT) {
3805 if (params->vlan)
3806 return -EINVAL;
3807 }
3808
3809 switch (statype) {
3810 case CFG80211_STA_AP_MLME_CLIENT:
3811 /* Use this only for authorizing/unauthorizing a station */
3812 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3813 return -EOPNOTSUPP;
3814 break;
3815 case CFG80211_STA_AP_CLIENT:
3816 /* accept only the listed bits */
3817 if (params->sta_flags_mask &
3818 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3819 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3820 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3821 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3822 BIT(NL80211_STA_FLAG_WME) |
3823 BIT(NL80211_STA_FLAG_MFP)))
3824 return -EINVAL;
3825
3826 /* but authenticated/associated only if driver handles it */
3827 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3828 params->sta_flags_mask &
3829 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3830 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3831 return -EINVAL;
3832 break;
3833 case CFG80211_STA_IBSS:
3834 case CFG80211_STA_AP_STA:
3835 /* reject any changes other than AUTHORIZED */
3836 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3837 return -EINVAL;
3838 break;
3839 case CFG80211_STA_TDLS_PEER_SETUP:
3840 /* reject any changes other than AUTHORIZED or WME */
3841 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3842 BIT(NL80211_STA_FLAG_WME)))
3843 return -EINVAL;
3844 /* force (at least) rates when authorizing */
3845 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3846 !params->supported_rates)
3847 return -EINVAL;
3848 break;
3849 case CFG80211_STA_TDLS_PEER_ACTIVE:
3850 /* reject any changes */
3851 return -EINVAL;
eef941e6 3852 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3853 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3854 return -EINVAL;
3855 break;
eef941e6 3856 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3857 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3858 return -EINVAL;
3859 break;
3860 }
3861
3862 return 0;
3863}
3864EXPORT_SYMBOL(cfg80211_check_station_change);
3865
5727ef1b 3866/*
c258d2de 3867 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3868 */
80b99899
JB		 3869static struct net_device *get_vlan(struct genl_info *info,
3870 struct cfg80211_registered_device *rdev)
5727ef1b 3871{
463d0183 3872 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3873 struct net_device *v;
3874 int ret;
3875
3876 if (!vlanattr)
3877 return NULL;
3878
3879 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3880 if (!v)
3881 return ERR_PTR(-ENODEV);
3882
3883 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3884 ret = -EINVAL;
3885 goto error;
5727ef1b 3886 }
80b99899 3887
77ee7c89
JB		 3888 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3889 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3890 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3891 ret = -EINVAL;
3892 goto error;
3893 }
3894
80b99899
JB		 3895 if (!netif_running(v)) {
3896 ret = -ENETDOWN;
3897 goto error;
3898 }
3899
3900 return v;
3901 error:
3902 dev_put(v);
3903 return ERR_PTR(ret);
5727ef1b
JB		 3904}
3905
df881293
JM		 3906static struct nla_policy
3907nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3908 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3909 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3910};
3911
ff276691
JB		 3912static int nl80211_parse_sta_wme(struct genl_info *info,
3913 struct station_parameters *params)
df881293 3914{
df881293
JM		 3915 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3916 struct nlattr *nla;
3917 int err;
3918
df881293
JM		 3919 /* parse WME attributes if present */
3920 if (!info->attrs[NL80211_ATTR_STA_WME])
3921 return 0;
3922
3923 nla = info->attrs[NL80211_ATTR_STA_WME];
3924 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3925 nl80211_sta_wme_policy);
3926 if (err)
3927 return err;
3928
3929 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3930 params->uapsd_queues = nla_get_u8(
3931 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3932 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3933 return -EINVAL;
3934
3935 if (tb[NL80211_STA_WME_MAX_SP])
3936 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3937
3938 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3939 return -EINVAL;
3940
3941 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3942
3943 return 0;
3944}
3945
c01fc9ad
SD		 3946static int nl80211_parse_sta_channel_info(struct genl_info *info,
3947 struct station_parameters *params)
3948{
3949 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3950 params->supported_channels =
3951 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3952 params->supported_channels_len =
3953 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3954 /*
3955 * Need to include at least one (first channel, number of
3956 * channels) tuple for each subband, and must have proper
3957 * tuples for the rest of the data as well.
3958 */
3959 if (params->supported_channels_len < 2)
3960 return -EINVAL;
3961 if (params->supported_channels_len % 2)
3962 return -EINVAL;
3963 }
3964
3965 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3966 params->supported_oper_classes =
3967 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3968 params->supported_oper_classes_len =
3969 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3970 /*
3971 * The value of the Length field of the Supported Operating
3972 * Classes element is between 2 and 253.
3973 */
3974 if (params->supported_oper_classes_len < 2 ||
3975 params->supported_oper_classes_len > 253)
3976 return -EINVAL;
3977 }
3978 return 0;
3979}
3980
ff276691
JB		 3981static int nl80211_set_station_tdls(struct genl_info *info,
3982 struct station_parameters *params)
3983{
c01fc9ad 3984 int err;
ff276691 3985 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3986 if (info->attrs[NL80211_ATTR_PEER_AID])
3987 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3988 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3989 params->ht_capa =
3990 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3991 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3992 params->vht_capa =
3993 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3994
c01fc9ad
SD		 3995 err = nl80211_parse_sta_channel_info(info, params);
3996 if (err)
3997 return err;
3998
ff276691
JB		 3999 return nl80211_parse_sta_wme(info, params);
4000}
4001
5727ef1b
JB		 4002static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4003{
4c476991 4004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4005 struct net_device *dev = info->user_ptr[1];
5727ef1b 4006 struct station_parameters params;
77ee7c89
JB		 4007 u8 *mac_addr;
4008 int err;
5727ef1b
JB		 4009
4010 memset(&params, 0, sizeof(params));
4011
4012 params.listen_interval = -1;
4013
77ee7c89
JB		 4014 if (!rdev->ops->change_station)
4015 return -EOPNOTSUPP;
4016
5727ef1b
JB		 4017 if (info->attrs[NL80211_ATTR_STA_AID])
4018 return -EINVAL;
4019
4020 if (!info->attrs[NL80211_ATTR_MAC])
4021 return -EINVAL;
4022
4023 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4024
4025 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4026 params.supported_rates =
4027 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4028 params.supported_rates_len =
4029 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4030 }
4031
9d62a986
JM		 4032 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4033 params.capability =
4034 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4035 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4036 }
4037
4038 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4039 params.ext_capab =
4040 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4041 params.ext_capab_len =
4042 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4043 }
4044
df881293 4045 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4046 return -EINVAL;
36aedc90 4047
bdd3ae3d 4048 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4049 return -EINVAL;
4050
f8bacc21 4051 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4052 params.plink_action =
f8bacc21
JB		 4053 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4054 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4055 return -EINVAL;
4056 }
2ec600d6 4057
f8bacc21 4058 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4059 params.plink_state =
f8bacc21
JB		 4060 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4061 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4062 return -EINVAL;
4063 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4064 }
9c3990aa 4065
3b1c5a53
MP		 4066 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4067 enum nl80211_mesh_power_mode pm = nla_get_u32(
4068 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4069
4070 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4071 pm > NL80211_MESH_POWER_MAX)
4072 return -EINVAL;
4073
4074 params.local_pm = pm;
4075 }
4076
77ee7c89
JB		 4077 /* Include parameters for TDLS peer (will check later) */
4078 err = nl80211_set_station_tdls(info, &params);
4079 if (err)
4080 return err;
4081
4082 params.vlan = get_vlan(info, rdev);
4083 if (IS_ERR(params.vlan))
4084 return PTR_ERR(params.vlan);
4085
a97f4424
JB		 4086 switch (dev->ieee80211_ptr->iftype) {
4087 case NL80211_IFTYPE_AP:
4088 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4089 case NL80211_IFTYPE_P2P_GO:
074ac8df 4090 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4091 case NL80211_IFTYPE_STATION:
267335d6 4092 case NL80211_IFTYPE_ADHOC:
a97f4424 4093 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4094 break;
4095 default:
77ee7c89
JB		 4096 err = -EOPNOTSUPP;
4097 goto out_put_vlan;
034d655e
JB		 4098 }
4099
77ee7c89 4100 /* driver will call cfg80211_check_station_change() */
e35e4d28 4101 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4102
77ee7c89 4103 out_put_vlan:
5727ef1b
JB		 4104 if (params.vlan)
4105 dev_put(params.vlan);
3b85875a 4106
5727ef1b
JB		 4107 return err;
4108}
4109
4110static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4111{
4c476991 4112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4113 int err;
4c476991 4114 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4115 struct station_parameters params;
4116 u8 *mac_addr = NULL;
4117
4118 memset(&params, 0, sizeof(params));
4119
984c311b
JB		 4120 if (!rdev->ops->add_station)
4121 return -EOPNOTSUPP;
4122
5727ef1b
JB		 4123 if (!info->attrs[NL80211_ATTR_MAC])
4124 return -EINVAL;
4125
5727ef1b
JB		 4126 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4127 return -EINVAL;
4128
4129 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4130 return -EINVAL;
4131
5e4b6f56
JM		 4132 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4133 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4134 return -EINVAL;
4135
5727ef1b
JB		 4136 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4137 params.supported_rates =
4138 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4139 params.supported_rates_len =
4140 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4141 params.listen_interval =
4142 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4143
3d124ea2 4144 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4145 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4146 else
4147 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4148 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4149 return -EINVAL;
51b50fbe 4150
9d62a986
JM		 4151 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4152 params.capability =
4153 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4154 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4155 }
4156
4157 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4158 params.ext_capab =
4159 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4160 params.ext_capab_len =
4161 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4162 }
4163
36aedc90
JM		 4164 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4165 params.ht_capa =
4166 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4167
f461be3e
MP		 4168 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4169 params.vht_capa =
4170 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4171
60f4a7b1
MK		 4172 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4173 params.opmode_notif_used = true;
4174 params.opmode_notif =
4175 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4176 }
4177
f8bacc21 4178 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4179 params.plink_action =
f8bacc21
JB		 4180 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4181 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4182 return -EINVAL;
4183 }
96b78dff 4184
c01fc9ad
SD		 4185 err = nl80211_parse_sta_channel_info(info, &params);
4186 if (err)
4187 return err;
4188
ff276691
JB		 4189 err = nl80211_parse_sta_wme(info, &params);
4190 if (err)
4191 return err;
bdd90d5e 4192
bdd3ae3d 4193 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4194 return -EINVAL;
4195
77ee7c89
JB		 4196 /* When you run into this, adjust the code below for the new flag */
4197 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4198
bdd90d5e
JB		 4199 switch (dev->ieee80211_ptr->iftype) {
4200 case NL80211_IFTYPE_AP:
4201 case NL80211_IFTYPE_AP_VLAN:
4202 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4203 /* ignore WME attributes if iface/sta is not capable */
4204 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4205 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4206 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4207
bdd90d5e 4208 /* TDLS peers cannot be added */
3d124ea2
JM		 4209 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4210 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4211 return -EINVAL;
bdd90d5e
JB		 4212 /* but don't bother the driver with it */
4213 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4214
d582cffb
JB		 4215 /* allow authenticated/associated only if driver handles it */
4216 if (!(rdev->wiphy.features &
4217 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4218 params.sta_flags_mask &
4219 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4220 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4221 return -EINVAL;
4222
bdd90d5e
JB		 4223 /* must be last in here for error handling */
4224 params.vlan = get_vlan(info, rdev);
4225 if (IS_ERR(params.vlan))
4226 return PTR_ERR(params.vlan);
4227 break;
4228 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4229 /* ignore uAPSD data */
4230 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4231
d582cffb
JB		 4232 /* associated is disallowed */
4233 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4234 return -EINVAL;
bdd90d5e 4235 /* TDLS peers cannot be added */
3d124ea2
JM		 4236 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4237 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4238 return -EINVAL;
4239 break;
4240 case NL80211_IFTYPE_STATION:
93d08f0b 4241 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4242 /* ignore uAPSD data */
4243 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4244
77ee7c89
JB		 4245 /* these are disallowed */
4246 if (params.sta_flags_mask &
4247 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4248 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4249 return -EINVAL;
bdd90d5e
JB		 4250 /* Only TDLS peers can be added */
4251 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4252 return -EINVAL;
4253 /* Can only add if TDLS ... */
4254 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4255 return -EOPNOTSUPP;
4256 /* ... with external setup is supported */
4257 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4258 return -EOPNOTSUPP;
77ee7c89
JB		 4259 /*
4260 * Older wpa_supplicant versions always mark the TDLS peer
4261 * as authorized, but it shouldn't yet be.
4262 */
4263 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4264 break;
4265 default:
4266 return -EOPNOTSUPP;
c75786c9
EP		 4267 }
4268
bdd90d5e 4269 /* be aware of params.vlan when changing code here */
5727ef1b 4270
e35e4d28 4271 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4272
5727ef1b
JB		 4273 if (params.vlan)
4274 dev_put(params.vlan);
5727ef1b
JB		 4275 return err;
4276}
4277
4278static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4279{
4c476991
JB		 4280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4281 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4282 u8 *mac_addr = NULL;
4283
4284 if (info->attrs[NL80211_ATTR_MAC])
4285 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4286
e80cf853 4287 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4288 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4289 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4290 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4291 return -EINVAL;
5727ef1b 4292
4c476991
JB		 4293 if (!rdev->ops->del_station)
4294 return -EOPNOTSUPP;
3b85875a 4295
e35e4d28 4296 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4297}
4298
15e47304 4299static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4300 int flags, struct net_device *dev,
4301 u8 *dst, u8 *next_hop,
4302 struct mpath_info *pinfo)
4303{
4304 void *hdr;
4305 struct nlattr *pinfoattr;
4306
15e47304 4307 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4308 if (!hdr)
4309 return -1;
4310
9360ffd1
DM		 4311 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4312 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4313 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4314 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4315 goto nla_put_failure;
f5ea9120 4316
2ec600d6
LCC		 4317 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4318 if (!pinfoattr)
4319 goto nla_put_failure;
9360ffd1
DM		 4320 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4321 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4322 pinfo->frame_qlen))
4323 goto nla_put_failure;
4324 if (((pinfo->filled & MPATH_INFO_SN) &&
4325 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4326 ((pinfo->filled & MPATH_INFO_METRIC) &&
4327 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4328 pinfo->metric)) ||
4329 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4330 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4331 pinfo->exptime)) ||
4332 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4333 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4334 pinfo->flags)) ||
4335 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4336 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4337 pinfo->discovery_timeout)) ||
4338 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4339 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4340 pinfo->discovery_retries)))
4341 goto nla_put_failure;
2ec600d6
LCC		 4342
4343 nla_nest_end(msg, pinfoattr);
4344
4345 return genlmsg_end(msg, hdr);
4346
4347 nla_put_failure:
bc3ed28c
TG		 4348 genlmsg_cancel(msg, hdr);
4349 return -EMSGSIZE;
2ec600d6
LCC		 4350}
4351
4352static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4353 struct netlink_callback *cb)
2ec600d6 4354{
2ec600d6
LCC		 4355 struct mpath_info pinfo;
4356 struct cfg80211_registered_device *dev;
97990a06 4357 struct wireless_dev *wdev;
2ec600d6
LCC		 4358 u8 dst[ETH_ALEN];
4359 u8 next_hop[ETH_ALEN];
97990a06 4360 int path_idx = cb->args[2];
2ec600d6 4361 int err;
2ec600d6 4362
97990a06 4363 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4364 if (err)
4365 return err;
bba95fef
JB		 4366
4367 if (!dev->ops->dump_mpath) {
eec60b03 4368 err = -EOPNOTSUPP;
bba95fef
JB		 4369 goto out_err;
4370 }
4371
97990a06 4372 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4373 err = -EOPNOTSUPP;
0448b5fc 4374 goto out_err;
eec60b03
JM		 4375 }
4376
bba95fef 4377 while (1) {
97990a06
JB		 4378 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4379 next_hop, &pinfo);
bba95fef 4380 if (err == -ENOENT)
2ec600d6 4381 break;
bba95fef 4382 if (err)
3b85875a 4383 goto out_err;
2ec600d6 4384
15e47304 4385 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4386 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4387 wdev->netdev, dst, next_hop,
bba95fef
JB		 4388 &pinfo) < 0)
4389 goto out;
2ec600d6 4390
bba95fef 4391 path_idx++;
2ec600d6 4392 }
2ec600d6 4393
2ec600d6 4394
bba95fef 4395 out:
97990a06 4396 cb->args[2] = path_idx;
bba95fef 4397 err = skb->len;
bba95fef 4398 out_err:
97990a06 4399 nl80211_finish_wdev_dump(dev);
bba95fef 4400 return err;
2ec600d6
LCC		 4401}
4402
4403static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4404{
4c476991 4405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4406 int err;
4c476991 4407 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4408 struct mpath_info pinfo;
4409 struct sk_buff *msg;
4410 u8 *dst = NULL;
4411 u8 next_hop[ETH_ALEN];
4412
4413 memset(&pinfo, 0, sizeof(pinfo));
4414
4415 if (!info->attrs[NL80211_ATTR_MAC])
4416 return -EINVAL;
4417
4418 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4419
4c476991
JB		 4420 if (!rdev->ops->get_mpath)
4421 return -EOPNOTSUPP;
2ec600d6 4422
4c476991
JB		 4423 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4424 return -EOPNOTSUPP;
eec60b03 4425
e35e4d28 4426 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4427 if (err)
4c476991 4428 return err;
2ec600d6 4429
fd2120ca 4430 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4431 if (!msg)
4c476991 4432 return -ENOMEM;
2ec600d6 4433
15e47304 4434 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4435 dev, dst, next_hop, &pinfo) < 0) {
4436 nlmsg_free(msg);
4437 return -ENOBUFS;
4438 }
3b85875a 4439
4c476991 4440 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4441}
4442
4443static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4444{
4c476991
JB		 4445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4446 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4447 u8 *dst = NULL;
4448 u8 *next_hop = NULL;
4449
4450 if (!info->attrs[NL80211_ATTR_MAC])
4451 return -EINVAL;
4452
4453 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4454 return -EINVAL;
4455
4456 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4457 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4458
4c476991
JB		 4459 if (!rdev->ops->change_mpath)
4460 return -EOPNOTSUPP;
35a8efe1 4461
4c476991
JB		 4462 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4463 return -EOPNOTSUPP;
2ec600d6 4464
e35e4d28 4465 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4466}
4c476991 4467
2ec600d6
LCC		 4468static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4469{
4c476991
JB		 4470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4471 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4472 u8 *dst = NULL;
4473 u8 *next_hop = NULL;
4474
4475 if (!info->attrs[NL80211_ATTR_MAC])
4476 return -EINVAL;
4477
4478 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4479 return -EINVAL;
4480
4481 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4482 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4483
4c476991
JB		 4484 if (!rdev->ops->add_mpath)
4485 return -EOPNOTSUPP;
35a8efe1 4486
4c476991
JB		 4487 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4488 return -EOPNOTSUPP;
2ec600d6 4489
e35e4d28 4490 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4491}
4492
4493static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4494{
4c476991
JB		 4495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4496 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4497 u8 *dst = NULL;
4498
4499 if (info->attrs[NL80211_ATTR_MAC])
4500 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4501
4c476991
JB		 4502 if (!rdev->ops->del_mpath)
4503 return -EOPNOTSUPP;
3b85875a 4504
e35e4d28 4505 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4506}
4507
9f1ba906
JM		 4508static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4509{
4c476991
JB		 4510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4511 struct net_device *dev = info->user_ptr[1];
c56589ed 4512 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4513 struct bss_parameters params;
c56589ed 4514 int err;
9f1ba906
JM		 4515
4516 memset(&params, 0, sizeof(params));
4517 /* default to not changing parameters */
4518 params.use_cts_prot = -1;
4519 params.use_short_preamble = -1;
4520 params.use_short_slot_time = -1;
fd8aaaf3 4521 params.ap_isolate = -1;
50b12f59 4522 params.ht_opmode = -1;
53cabad7
JB		 4523 params.p2p_ctwindow = -1;
4524 params.p2p_opp_ps = -1;
9f1ba906
JM		 4525
4526 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4527 params.use_cts_prot =
4528 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4529 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4530 params.use_short_preamble =
4531 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4532 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4533 params.use_short_slot_time =
4534 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4535 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4536 params.basic_rates =
4537 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4538 params.basic_rates_len =
4539 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4540 }
fd8aaaf3
FF		 4541 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4542 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4543 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4544 params.ht_opmode =
4545 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4546
53cabad7
JB		 4547 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4548 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4549 return -EINVAL;
4550 params.p2p_ctwindow =
4551 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4552 if (params.p2p_ctwindow < 0)
4553 return -EINVAL;
4554 if (params.p2p_ctwindow != 0 &&
4555 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4556 return -EINVAL;
4557 }
4558
4559 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4560 u8 tmp;
4561
4562 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4563 return -EINVAL;
4564 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4565 if (tmp > 1)
4566 return -EINVAL;
4567 params.p2p_opp_ps = tmp;
4568 if (params.p2p_opp_ps &&
4569 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4570 return -EINVAL;
4571 }
4572
4c476991
JB		 4573 if (!rdev->ops->change_bss)
4574 return -EOPNOTSUPP;
9f1ba906 4575
074ac8df 4576 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4577 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4578 return -EOPNOTSUPP;
3b85875a 4579
c56589ed
SW		 4580 wdev_lock(wdev);
4581 err = rdev_change_bss(rdev, dev, &params);
4582 wdev_unlock(wdev);
4583
4584 return err;
9f1ba906
JM		 4585}
4586
b54452b0 4587static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4588 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4589 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4590 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4591 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4592 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4593 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4594};
4595
4596static int parse_reg_rule(struct nlattr *tb[],
4597 struct ieee80211_reg_rule *reg_rule)
4598{
4599 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4600 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4601
4602 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4603 return -EINVAL;
4604 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4605 return -EINVAL;
4606 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4607 return -EINVAL;
4608 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4609 return -EINVAL;
4610 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4611 return -EINVAL;
4612
4613 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4614
4615 freq_range->start_freq_khz =
4616 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4617 freq_range->end_freq_khz =
4618 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4619 freq_range->max_bandwidth_khz =
4620 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4621
4622 power_rule->max_eirp =
4623 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4624
4625 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4626 power_rule->max_antenna_gain =
4627 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4628
4629 return 0;
4630}
4631
4632static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4633{
4634 int r;
4635 char *data = NULL;
57b5ce07 4636 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4637
80778f18
LR		 4638 /*
4639 * You should only get this when cfg80211 hasn't yet initialized
4640 * completely when built-in to the kernel right between the time
4641 * window between nl80211_init() and regulatory_init(), if that is
4642 * even possible.
4643 */
458f4f9e 4644 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4645 return -EINPROGRESS;
80778f18 4646
fe33eb39
LR		 4647 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4648 return -EINVAL;
b2e1b302
LR		 4649
4650 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4651
57b5ce07
LR		 4652 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4653 user_reg_hint_type =
4654 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4655 else
4656 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4657
4658 switch (user_reg_hint_type) {
4659 case NL80211_USER_REG_HINT_USER:
4660 case NL80211_USER_REG_HINT_CELL_BASE:
4661 break;
4662 default:
4663 return -EINVAL;
4664 }
4665
4666 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4667
b2e1b302
LR		 4668 return r;
4669}
4670
24bdd9f4 4671static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4672 struct genl_info *info)
93da9cc1 4673{
4c476991 4674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4675 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4676 struct wireless_dev *wdev = dev->ieee80211_ptr;
4677 struct mesh_config cur_params;
4678 int err = 0;
93da9cc1 4679 void *hdr;
4680 struct nlattr *pinfoattr;
4681 struct sk_buff *msg;
4682
29cbe68c
JB		 4683 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4684 return -EOPNOTSUPP;
4685
24bdd9f4 4686 if (!rdev->ops->get_mesh_config)
4c476991 4687 return -EOPNOTSUPP;
f3f92586 4688
29cbe68c
JB		 4689 wdev_lock(wdev);
4690 /* If not connected, get default parameters */
4691 if (!wdev->mesh_id_len)
4692 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4693 else
e35e4d28 4694 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4695 wdev_unlock(wdev);
4696
93da9cc1 4697 if (err)
4c476991 4698 return err;
93da9cc1 4699
4700 /* Draw up a netlink message to send back */
fd2120ca 4701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4702 if (!msg)
4703 return -ENOMEM;
15e47304 4704 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4705 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4706 if (!hdr)
efe1cf0c 4707 goto out;
24bdd9f4 4708 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4709 if (!pinfoattr)
4710 goto nla_put_failure;
9360ffd1
DM		 4711 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4712 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4713 cur_params.dot11MeshRetryTimeout) ||
4714 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4715 cur_params.dot11MeshConfirmTimeout) ||
4716 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4717 cur_params.dot11MeshHoldingTimeout) ||
4718 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4719 cur_params.dot11MeshMaxPeerLinks) ||
4720 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4721 cur_params.dot11MeshMaxRetries) ||
4722 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4723 cur_params.dot11MeshTTL) ||
4724 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4725 cur_params.element_ttl) ||
4726 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4727 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4728 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4729 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4730 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4731 cur_params.dot11MeshHWMPmaxPREQretries) ||
4732 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4733 cur_params.path_refresh_time) ||
4734 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4735 cur_params.min_discovery_timeout) ||
4736 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4737 cur_params.dot11MeshHWMPactivePathTimeout) ||
4738 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4739 cur_params.dot11MeshHWMPpreqMinInterval) ||
4740 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4741 cur_params.dot11MeshHWMPperrMinInterval) ||
4742 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4743 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4744 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4745 cur_params.dot11MeshHWMPRootMode) ||
4746 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4747 cur_params.dot11MeshHWMPRannInterval) ||
4748 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4749 cur_params.dot11MeshGateAnnouncementProtocol) ||
4750 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4751 cur_params.dot11MeshForwarding) ||
4752 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4753 cur_params.rssi_threshold) ||
4754 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4755 cur_params.ht_opmode) ||
4756 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4757 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4758 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4759 cur_params.dot11MeshHWMProotInterval) ||
4760 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4761 cur_params.dot11MeshHWMPconfirmationInterval) ||
4762 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4763 cur_params.power_mode) ||
4764 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4765 cur_params.dot11MeshAwakeWindowDuration) ||
4766 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4767 cur_params.plink_timeout))
9360ffd1 4768 goto nla_put_failure;
93da9cc1 4769 nla_nest_end(msg, pinfoattr);
4770 genlmsg_end(msg, hdr);
4c476991 4771 return genlmsg_reply(msg, info);
93da9cc1 4772
3b85875a 4773 nla_put_failure:
93da9cc1 4774 genlmsg_cancel(msg, hdr);
efe1cf0c 4775 out:
d080e275 4776 nlmsg_free(msg);
4c476991 4777 return -ENOBUFS;
93da9cc1 4778}
4779
b54452b0 4780static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4781 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4782 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4783 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4784 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4785 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4786 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4787 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4788 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4789 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4790 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4791 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4792 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4793 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4794 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4795 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4796 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4797 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4798 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4799 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4800 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4801 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4802 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4803 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4804 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4805 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4806 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4807 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4808 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4809};
4810
c80d545d
JC		 4811static const struct nla_policy
4812 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4813 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4814 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4815 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4816 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4817 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4818 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4819 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4820 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4821 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4822};
4823
24bdd9f4 4824static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4825 struct mesh_config *cfg,
4826 u32 *mask_out)
93da9cc1 4827{
93da9cc1 4828 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4829 u32 mask = 0;
93da9cc1 4830
ea54fba2
MP		 4831#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4832do { \
4833 if (tb[attr]) { \
4834 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4835 return -EINVAL; \
4836 cfg->param = fn(tb[attr]); \
4837 mask |= (1 << (attr - 1)); \
4838 } \
4839} while (0)
bd90fdcc
JB		 4840
4841
24bdd9f4 4842 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4843 return -EINVAL;
4844 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4845 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4846 nl80211_meshconf_params_policy))
93da9cc1 4847 return -EINVAL;
4848
93da9cc1 4849 /* This makes sure that there aren't more than 32 mesh config
4850 * parameters (otherwise our bitfield scheme would not work.) */
4851 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4852
4853 /* Fill in the params struct */
ea54fba2 4854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4855 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4856 nla_get_u16);
ea54fba2 4857 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4858 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4859 nla_get_u16);
ea54fba2 4860 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4861 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4862 nla_get_u16);
ea54fba2 4863 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4864 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4865 nla_get_u16);
ea54fba2 4866 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4867 mask, NL80211_MESHCONF_MAX_RETRIES,
4868 nla_get_u8);
ea54fba2 4869 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4870 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4871 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4872 mask, NL80211_MESHCONF_ELEMENT_TTL,
4873 nla_get_u8);
ea54fba2 4874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4875 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4876 nla_get_u8);
ea54fba2
MP		 4877 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4878 1, 255, mask,
a4f606ea
CYY		 4879 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4880 nla_get_u32);
ea54fba2 4881 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4882 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4883 nla_get_u8);
ea54fba2 4884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4885 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4886 nla_get_u32);
ea54fba2 4887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4888 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4889 nla_get_u16);
ea54fba2
MP		 4890 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4891 1, 65535, mask,
a4f606ea
CYY		 4892 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4893 nla_get_u32);
93da9cc1 4894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4895 1, 65535, mask,
4896 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4897 nla_get_u16);
dca7e943 4898 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4899 1, 65535, mask,
4900 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4901 nla_get_u16);
93da9cc1 4902 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4903 dot11MeshHWMPnetDiameterTraversalTime,
4904 1, 65535, mask,
a4f606ea
CYY		 4905 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4906 nla_get_u16);
ea54fba2
MP		 4907 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4908 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4909 nla_get_u8);
4910 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4911 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4912 nla_get_u16);
63c5723b 4913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4914 dot11MeshGateAnnouncementProtocol, 0, 1,
4915 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4916 nla_get_u8);
ea54fba2 4917 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4918 mask, NL80211_MESHCONF_FORWARDING,
4919 nla_get_u8);
83374fe9 4920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4921 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4922 nla_get_s32);
ea54fba2 4923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4924 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4925 nla_get_u16);
4926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4927 1, 65535, mask,
ac1073a6
CYY		 4928 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4929 nla_get_u32);
ea54fba2 4930 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4931 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4932 nla_get_u16);
4933 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4934 dot11MeshHWMPconfirmationInterval,
4935 1, 65535, mask,
728b19e5 4936 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4937 nla_get_u16);
3b1c5a53
MP		 4938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4939 NL80211_MESH_POWER_ACTIVE,
4940 NL80211_MESH_POWER_MAX,
4941 mask, NL80211_MESHCONF_POWER_MODE,
4942 nla_get_u32);
4943 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4944 0, 65535, mask,
4945 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4947 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4948 nla_get_u32);
bd90fdcc
JB		 4949 if (mask_out)
4950 *mask_out = mask;
c80d545d 4951
bd90fdcc
JB		 4952 return 0;
4953
4954#undef FILL_IN_MESH_PARAM_IF_SET
4955}
4956
c80d545d
JC		 4957static int nl80211_parse_mesh_setup(struct genl_info *info,
4958 struct mesh_setup *setup)
4959{
bb2798d4 4960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4961 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4962
4963 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4964 return -EINVAL;
4965 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4966 info->attrs[NL80211_ATTR_MESH_SETUP],
4967 nl80211_mesh_setup_params_policy))
4968 return -EINVAL;
4969
d299a1f2
JC		 4970 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4971 setup->sync_method =
4972 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4973 IEEE80211_SYNC_METHOD_VENDOR :
4974 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4975
c80d545d
JC		 4976 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4977 setup->path_sel_proto =
4978 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4979 IEEE80211_PATH_PROTOCOL_VENDOR :
4980 IEEE80211_PATH_PROTOCOL_HWMP;
4981
4982 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4983 setup->path_metric =
4984 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4985 IEEE80211_PATH_METRIC_VENDOR :
4986 IEEE80211_PATH_METRIC_AIRTIME;
4987
581a8b0f
JC		 4988
4989 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4990 struct nlattr *ieattr =
581a8b0f 4991 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4992 if (!is_valid_ie_attr(ieattr))
4993 return -EINVAL;
581a8b0f
JC		 4994 setup->ie = nla_data(ieattr);
4995 setup->ie_len = nla_len(ieattr);
c80d545d 4996 }
bb2798d4
TP		 4997 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4998 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4999 return -EINVAL;
5000 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5001 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5002 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5003 if (setup->is_secure)
5004 setup->user_mpm = true;
c80d545d 5005
6e16d90b
CT		 5006 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5007 if (!setup->user_mpm)
5008 return -EINVAL;
5009 setup->auth_id =
5010 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5011 }
5012
c80d545d
JC		 5013 return 0;
5014}
5015
24bdd9f4 5016static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5017 struct genl_info *info)
bd90fdcc
JB		 5018{
5019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5020 struct net_device *dev = info->user_ptr[1];
29cbe68c 5021 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5022 struct mesh_config cfg;
5023 u32 mask;
5024 int err;
5025
29cbe68c
JB		 5026 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5027 return -EOPNOTSUPP;
5028
24bdd9f4 5029 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5030 return -EOPNOTSUPP;
5031
24bdd9f4 5032 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5033 if (err)
5034 return err;
5035
29cbe68c
JB		 5036 wdev_lock(wdev);
5037 if (!wdev->mesh_id_len)
5038 err = -ENOLINK;
5039
5040 if (!err)
e35e4d28 5041 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5042
5043 wdev_unlock(wdev);
5044
5045 return err;
93da9cc1 5046}
5047
f130347c
LR		 5048static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5049{
458f4f9e 5050 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5051 struct sk_buff *msg;
5052 void *hdr = NULL;
5053 struct nlattr *nl_reg_rules;
5054 unsigned int i;
f130347c
LR		 5055
5056 if (!cfg80211_regdomain)
5fe231e8 5057 return -EINVAL;
f130347c 5058
fd2120ca 5059 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5060 if (!msg)
5061 return -ENOBUFS;
f130347c 5062
15e47304 5063 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5064 NL80211_CMD_GET_REG);
5065 if (!hdr)
efe1cf0c 5066 goto put_failure;
f130347c 5067
57b5ce07
LR		 5068 if (reg_last_request_cell_base() &&
5069 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5070 NL80211_USER_REG_HINT_CELL_BASE))
5071 goto nla_put_failure;
5072
458f4f9e
JB		 5073 rcu_read_lock();
5074 regdom = rcu_dereference(cfg80211_regdomain);
5075
5076 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5077 (regdom->dfs_region &&
5078 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5079 goto nla_put_failure_rcu;
5080
f130347c
LR		 5081 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5082 if (!nl_reg_rules)
458f4f9e 5083 goto nla_put_failure_rcu;
f130347c 5084
458f4f9e 5085 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5086 struct nlattr *nl_reg_rule;
5087 const struct ieee80211_reg_rule *reg_rule;
5088 const struct ieee80211_freq_range *freq_range;
5089 const struct ieee80211_power_rule *power_rule;
5090
458f4f9e 5091 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5092 freq_range = &reg_rule->freq_range;
5093 power_rule = &reg_rule->power_rule;
5094
5095 nl_reg_rule = nla_nest_start(msg, i);
5096 if (!nl_reg_rule)
458f4f9e 5097 goto nla_put_failure_rcu;
f130347c 5098
9360ffd1
DM		 5099 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5100 reg_rule->flags) ||
5101 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5102 freq_range->start_freq_khz) ||
5103 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5104 freq_range->end_freq_khz) ||
5105 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5106 freq_range->max_bandwidth_khz) ||
5107 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5108 power_rule->max_antenna_gain) ||
5109 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5110 power_rule->max_eirp))
458f4f9e 5111 goto nla_put_failure_rcu;
f130347c
LR		 5112
5113 nla_nest_end(msg, nl_reg_rule);
5114 }
458f4f9e 5115 rcu_read_unlock();
f130347c
LR		 5116
5117 nla_nest_end(msg, nl_reg_rules);
5118
5119 genlmsg_end(msg, hdr);
5fe231e8 5120 return genlmsg_reply(msg, info);
f130347c 5121
458f4f9e
JB		 5122nla_put_failure_rcu:
5123 rcu_read_unlock();
f130347c
LR		 5124nla_put_failure:
5125 genlmsg_cancel(msg, hdr);
efe1cf0c 5126put_failure:
d080e275 5127 nlmsg_free(msg);
5fe231e8 5128 return -EMSGSIZE;
f130347c
LR		 5129}
5130
b2e1b302
LR		 5131static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5132{
5133 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5134 struct nlattr *nl_reg_rule;
5135 char *alpha2 = NULL;
5136 int rem_reg_rules = 0, r = 0;
5137 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5138 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5139 struct ieee80211_regdomain *rd = NULL;
5140
5141 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5142 return -EINVAL;
5143
5144 if (!info->attrs[NL80211_ATTR_REG_RULES])
5145 return -EINVAL;
5146
5147 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5148
8b60b078
LR		 5149 if (info->attrs[NL80211_ATTR_DFS_REGION])
5150 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5151
b2e1b302 5152 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5153 rem_reg_rules) {
b2e1b302
LR		 5154 num_rules++;
5155 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5156 return -EINVAL;
b2e1b302
LR		 5157 }
5158
e438768f
LR		 5159 if (!reg_is_valid_request(alpha2))
5160 return -EINVAL;
5161
b2e1b302 5162 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5163 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5164
5165 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5166 if (!rd)
5167 return -ENOMEM;
b2e1b302
LR		 5168
5169 rd->n_reg_rules = num_rules;
5170 rd->alpha2[0] = alpha2[0];
5171 rd->alpha2[1] = alpha2[1];
5172
8b60b078
LR		 5173 /*
5174 * Disable DFS master mode if the DFS region was
5175 * not supported or known on this kernel.
5176 */
5177 if (reg_supported_dfs_region(dfs_region))
5178 rd->dfs_region = dfs_region;
5179
b2e1b302 5180 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5181 rem_reg_rules) {
b2e1b302 5182 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 5183 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5184 reg_rule_policy);
b2e1b302
LR		 5185 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5186 if (r)
5187 goto bad_reg;
5188
5189 rule_idx++;
5190
d0e18f83
LR		 5191 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5192 r = -EINVAL;
b2e1b302 5193 goto bad_reg;
d0e18f83 5194 }
b2e1b302
LR		 5195 }
5196
b2e1b302 5197 r = set_regdom(rd);
6913b49a 5198 /* set_regdom took ownership */
1a919318 5199 rd = NULL;
b2e1b302 5200
d2372b31 5201 bad_reg:
b2e1b302 5202 kfree(rd);
d0e18f83 5203 return r;
b2e1b302
LR		 5204}
5205
83f5e2cf
JB		 5206static int validate_scan_freqs(struct nlattr *freqs)
5207{
5208 struct nlattr *attr1, *attr2;
5209 int n_channels = 0, tmp1, tmp2;
5210
5211 nla_for_each_nested(attr1, freqs, tmp1) {
5212 n_channels++;
5213 /*
5214 * Some hardware has a limited channel list for
5215 * scanning, and it is pretty much nonsensical
5216 * to scan for a channel twice, so disallow that
5217 * and don't require drivers to check that the
5218 * channel list they get isn't longer than what
5219 * they can scan, as long as they can scan all
5220 * the channels they registered at once.
5221 */
5222 nla_for_each_nested(attr2, freqs, tmp2)
5223 if (attr1 != attr2 &&
5224 nla_get_u32(attr1) == nla_get_u32(attr2))
5225 return 0;
5226 }
5227
5228 return n_channels;
5229}
5230
2a519311
JB		 5231static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5232{
4c476991 5233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5234 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5235 struct cfg80211_scan_request *request;
2a519311
JB		 5236 struct nlattr *attr;
5237 struct wiphy *wiphy;
83f5e2cf 5238 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5239 size_t ie_len;
2a519311 5240
f4a11bb0
JB		 5241 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5242 return -EINVAL;
5243
79c97e97 5244 wiphy = &rdev->wiphy;
2a519311 5245
4c476991
JB		 5246 if (!rdev->ops->scan)
5247 return -EOPNOTSUPP;
2a519311 5248
f9f47529
JB		 5249 if (rdev->scan_req) {
5250 err = -EBUSY;
5251 goto unlock;
5252 }
2a519311
JB		 5253
5254 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5255 n_channels = validate_scan_freqs(
5256 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5257 if (!n_channels) {
5258 err = -EINVAL;
5259 goto unlock;
5260 }
2a519311 5261 } else {
34850ab2 5262 enum ieee80211_band band;
83f5e2cf
JB		 5263 n_channels = 0;
5264
2a519311
JB		 5265 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5266 if (wiphy->bands[band])
5267 n_channels += wiphy->bands[band]->n_channels;
5268 }
5269
5270 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5271 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5272 n_ssids++;
5273
f9f47529
JB		 5274 if (n_ssids > wiphy->max_scan_ssids) {
5275 err = -EINVAL;
5276 goto unlock;
5277 }
2a519311 5278
70692ad2
JM		 5279 if (info->attrs[NL80211_ATTR_IE])
5280 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5281 else
5282 ie_len = 0;
5283
f9f47529
JB		 5284 if (ie_len > wiphy->max_scan_ie_len) {
5285 err = -EINVAL;
5286 goto unlock;
5287 }
18a83659 5288
2a519311 5289 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5290 + sizeof(*request->ssids) * n_ssids
5291 + sizeof(*request->channels) * n_channels
70692ad2 5292 + ie_len, GFP_KERNEL);
f9f47529
JB		 5293 if (!request) {
5294 err = -ENOMEM;
5295 goto unlock;
5296 }
2a519311 5297
2a519311 5298 if (n_ssids)
5ba63533 5299 request->ssids = (void *)&request->channels[n_channels];
2a519311 5300 request->n_ssids = n_ssids;
70692ad2
JM		 5301 if (ie_len) {
5302 if (request->ssids)
5303 request->ie = (void *)(request->ssids + n_ssids);
5304 else
5305 request->ie = (void *)(request->channels + n_channels);
5306 }
2a519311 5307
584991dc 5308 i = 0;
2a519311
JB		 5309 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5310 /* user specified, bail out if channel not found */
2a519311 5311 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5312 struct ieee80211_channel *chan;
5313
5314 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5315
5316 if (!chan) {
2a519311
JB		 5317 err = -EINVAL;
5318 goto out_free;
5319 }
584991dc
JB		 5320
5321 /* ignore disabled channels */
5322 if (chan->flags & IEEE80211_CHAN_DISABLED)
5323 continue;
5324
5325 request->channels[i] = chan;
2a519311
JB		 5326 i++;
5327 }
5328 } else {
34850ab2
JB		 5329 enum ieee80211_band band;
5330
2a519311 5331 /* all channels */
2a519311
JB		 5332 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5333 int j;
5334 if (!wiphy->bands[band])
5335 continue;
5336 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5337 struct ieee80211_channel *chan;
5338
5339 chan = &wiphy->bands[band]->channels[j];
5340
5341 if (chan->flags & IEEE80211_CHAN_DISABLED)
5342 continue;
5343
5344 request->channels[i] = chan;
2a519311
JB		 5345 i++;
5346 }
5347 }
5348 }
5349
584991dc
JB		 5350 if (!i) {
5351 err = -EINVAL;
5352 goto out_free;
5353 }
5354
5355 request->n_channels = i;
5356
2a519311
JB		 5357 i = 0;
5358 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5359 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5360 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5361 err = -EINVAL;
5362 goto out_free;
5363 }
57a27e1d 5364 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5365 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5366 i++;
5367 }
5368 }
5369
70692ad2
JM		 5370 if (info->attrs[NL80211_ATTR_IE]) {
5371 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5372 memcpy((void *)request->ie,
5373 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5374 request->ie_len);
5375 }
5376
34850ab2 5377 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5378 if (wiphy->bands[i])
5379 request->rates[i] =
5380 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5381
5382 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5383 nla_for_each_nested(attr,
5384 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5385 tmp) {
5386 enum ieee80211_band band = nla_type(attr);
5387
84404623 5388 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5389 err = -EINVAL;
5390 goto out_free;
5391 }
1b09cd82
FF		 5392
5393 if (!wiphy->bands[band])
5394 continue;
5395
34850ab2
JB		 5396 err = ieee80211_get_ratemask(wiphy->bands[band],
5397 nla_data(attr),
5398 nla_len(attr),
5399 &request->rates[band]);
5400 if (err)
5401 goto out_free;
5402 }
5403 }
5404
46856bbf 5405 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5406 request->flags = nla_get_u32(
5407 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5408 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5409 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5410 err = -EOPNOTSUPP;
5411 goto out_free;
5412 }
5413 }
ed473771 5414
e9f935e3
RM		 5415 request->no_cck =
5416 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5417
fd014284 5418 request->wdev = wdev;
79c97e97 5419 request->wiphy = &rdev->wiphy;
15d6030b 5420 request->scan_start = jiffies;
2a519311 5421
79c97e97 5422 rdev->scan_req = request;
e35e4d28 5423 err = rdev_scan(rdev, request);
2a519311 5424
463d0183 5425 if (!err) {
fd014284
JB		 5426 nl80211_send_scan_start(rdev, wdev);
5427 if (wdev->netdev)
5428 dev_hold(wdev->netdev);
4c476991 5429 } else {
2a519311 5430 out_free:
79c97e97 5431 rdev->scan_req = NULL;
2a519311
JB		 5432 kfree(request);
5433 }
3b85875a 5434
f9f47529 5435 unlock:
2a519311
JB		 5436 return err;
5437}
5438
807f8a8c
LC		 5439static int nl80211_start_sched_scan(struct sk_buff *skb,
5440 struct genl_info *info)
5441{
5442 struct cfg80211_sched_scan_request *request;
5443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5444 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5445 struct nlattr *attr;
5446 struct wiphy *wiphy;
a1f1c21c 5447 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5448 u32 interval;
807f8a8c
LC		 5449 enum ieee80211_band band;
5450 size_t ie_len;
a1f1c21c 5451 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5452
5453 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5454 !rdev->ops->sched_scan_start)
5455 return -EOPNOTSUPP;
5456
5457 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5458 return -EINVAL;
5459
bbe6ad6d
LC		 5460 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5461 return -EINVAL;
5462
5463 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5464 if (interval == 0)
5465 return -EINVAL;
5466
807f8a8c
LC		 5467 wiphy = &rdev->wiphy;
5468
5469 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5470 n_channels = validate_scan_freqs(
5471 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5472 if (!n_channels)
5473 return -EINVAL;
5474 } else {
5475 n_channels = 0;
5476
5477 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5478 if (wiphy->bands[band])
5479 n_channels += wiphy->bands[band]->n_channels;
5480 }
5481
5482 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5483 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5484 tmp)
5485 n_ssids++;
5486
93b6aa69 5487 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5488 return -EINVAL;
5489
a1f1c21c
LC		 5490 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5491 nla_for_each_nested(attr,
5492 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5493 tmp)
5494 n_match_sets++;
5495
5496 if (n_match_sets > wiphy->max_match_sets)
5497 return -EINVAL;
5498
807f8a8c
LC		 5499 if (info->attrs[NL80211_ATTR_IE])
5500 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5501 else
5502 ie_len = 0;
5503
5a865bad 5504 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5505 return -EINVAL;
5506
c10841ca
LC		 5507 if (rdev->sched_scan_req) {
5508 err = -EINPROGRESS;
5509 goto out;
5510 }
5511
807f8a8c 5512 request = kzalloc(sizeof(*request)
a2cd43c5 5513 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5514 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5515 + sizeof(*request->channels) * n_channels
807f8a8c 5516 + ie_len, GFP_KERNEL);
c10841ca
LC		 5517 if (!request) {
5518 err = -ENOMEM;
5519 goto out;
5520 }
807f8a8c
LC		 5521
5522 if (n_ssids)
5523 request->ssids = (void *)&request->channels[n_channels];
5524 request->n_ssids = n_ssids;
5525 if (ie_len) {
5526 if (request->ssids)
5527 request->ie = (void *)(request->ssids + n_ssids);
5528 else
5529 request->ie = (void *)(request->channels + n_channels);
5530 }
5531
a1f1c21c
LC		 5532 if (n_match_sets) {
5533 if (request->ie)
5534 request->match_sets = (void *)(request->ie + ie_len);
5535 else if (request->ssids)
5536 request->match_sets =
5537 (void *)(request->ssids + n_ssids);
5538 else
5539 request->match_sets =
5540 (void *)(request->channels + n_channels);
5541 }
5542 request->n_match_sets = n_match_sets;
5543
807f8a8c
LC		 5544 i = 0;
5545 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5546 /* user specified, bail out if channel not found */
5547 nla_for_each_nested(attr,
5548 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5549 tmp) {
5550 struct ieee80211_channel *chan;
5551
5552 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5553
5554 if (!chan) {
5555 err = -EINVAL;
5556 goto out_free;
5557 }
5558
5559 /* ignore disabled channels */
5560 if (chan->flags & IEEE80211_CHAN_DISABLED)
5561 continue;
5562
5563 request->channels[i] = chan;
5564 i++;
5565 }
5566 } else {
5567 /* all channels */
5568 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5569 int j;
5570 if (!wiphy->bands[band])
5571 continue;
5572 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5573 struct ieee80211_channel *chan;
5574
5575 chan = &wiphy->bands[band]->channels[j];
5576
5577 if (chan->flags & IEEE80211_CHAN_DISABLED)
5578 continue;
5579
5580 request->channels[i] = chan;
5581 i++;
5582 }
5583 }
5584 }
5585
5586 if (!i) {
5587 err = -EINVAL;
5588 goto out_free;
5589 }
5590
5591 request->n_channels = i;
5592
5593 i = 0;
5594 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5595 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5596 tmp) {
57a27e1d 5597 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5598 err = -EINVAL;
5599 goto out_free;
5600 }
57a27e1d 5601 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5602 memcpy(request->ssids[i].ssid, nla_data(attr),
5603 nla_len(attr));
807f8a8c
LC		 5604 i++;
5605 }
5606 }
5607
a1f1c21c
LC		 5608 i = 0;
5609 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5610 nla_for_each_nested(attr,
5611 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5612 tmp) {
88e920b4 5613 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5614
5615 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5616 nla_data(attr), nla_len(attr),
5617 nl80211_match_policy);
4a4ab0d7 5618 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5619 if (ssid) {
5620 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5621 err = -EINVAL;
5622 goto out_free;
5623 }
5624 memcpy(request->match_sets[i].ssid.ssid,
5625 nla_data(ssid), nla_len(ssid));
5626 request->match_sets[i].ssid.ssid_len =
5627 nla_len(ssid);
5628 }
88e920b4
TP		 5629 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5630 if (rssi)
5631 request->rssi_thold = nla_get_u32(rssi);
5632 else
5633 request->rssi_thold =
5634 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5635 i++;
5636 }
5637 }
5638
807f8a8c
LC		 5639 if (info->attrs[NL80211_ATTR_IE]) {
5640 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5641 memcpy((void *)request->ie,
5642 nla_data(info->attrs[NL80211_ATTR_IE]),
5643 request->ie_len);
5644 }
5645
46856bbf 5646 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5647 request->flags = nla_get_u32(
5648 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5649 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5650 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5651 err = -EOPNOTSUPP;
5652 goto out_free;
5653 }
5654 }
ed473771 5655
807f8a8c
LC		 5656 request->dev = dev;
5657 request->wiphy = &rdev->wiphy;
bbe6ad6d 5658 request->interval = interval;
15d6030b 5659 request->scan_start = jiffies;
807f8a8c 5660
e35e4d28 5661 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5662 if (!err) {
5663 rdev->sched_scan_req = request;
5664 nl80211_send_sched_scan(rdev, dev,
5665 NL80211_CMD_START_SCHED_SCAN);
5666 goto out;
5667 }
5668
5669out_free:
5670 kfree(request);
5671out:
5672 return err;
5673}
5674
5675static int nl80211_stop_sched_scan(struct sk_buff *skb,
5676 struct genl_info *info)
5677{
5678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5679
5680 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5681 !rdev->ops->sched_scan_stop)
5682 return -EOPNOTSUPP;
5683
5fe231e8 5684 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5685}
5686
04f39047
SW		 5687static int nl80211_start_radar_detection(struct sk_buff *skb,
5688 struct genl_info *info)
5689{
5690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5691 struct net_device *dev = info->user_ptr[1];
5692 struct wireless_dev *wdev = dev->ieee80211_ptr;
5693 struct cfg80211_chan_def chandef;
55f7435c 5694 enum nl80211_dfs_regions dfs_region;
04f39047
SW		 5695 int err;
5696
55f7435c
LR		 5697 dfs_region = reg_get_dfs_region(wdev->wiphy);
5698 if (dfs_region == NL80211_DFS_UNSET)
5699 return -EINVAL;
5700
04f39047
SW		 5701 err = nl80211_parse_chandef(rdev, info, &chandef);
5702 if (err)
5703 return err;
5704
ff311bc1
SW		 5705 if (netif_carrier_ok(dev))
5706 return -EBUSY;
5707
04f39047
SW		 5708 if (wdev->cac_started)
5709 return -EBUSY;
5710
5711 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5712 if (err < 0)
5713 return err;
5714
5715 if (err == 0)
5716 return -EINVAL;
5717
fe7c3a1f 5718 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5719 return -EINVAL;
5720
5721 if (!rdev->ops->start_radar_detection)
5722 return -EOPNOTSUPP;
5723
04f39047
SW		 5724 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5725 chandef.chan, CHAN_MODE_SHARED,
5726 BIT(chandef.width));
5727 if (err)
5fe231e8 5728 return err;
04f39047
SW		 5729
5730 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5731 if (!err) {
5732 wdev->channel = chandef.chan;
5733 wdev->cac_started = true;
5734 wdev->cac_start_time = jiffies;
5735 }
04f39047
SW		 5736 return err;
5737}
5738
16ef1fe2
SW		 5739static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5740{
5741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5742 struct net_device *dev = info->user_ptr[1];
5743 struct wireless_dev *wdev = dev->ieee80211_ptr;
5744 struct cfg80211_csa_settings params;
5745 /* csa_attrs is defined static to avoid waste of stack size - this
5746 * function is called under RTNL lock, so this should not be a problem.
5747 */
5748 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5749 u8 radar_detect_width = 0;
5750 int err;
ee4bc9e7 5751 bool need_new_beacon = false;
16ef1fe2
SW		 5752
5753 if (!rdev->ops->channel_switch ||
5754 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5755 return -EOPNOTSUPP;
5756
ee4bc9e7
SW		 5757 switch (dev->ieee80211_ptr->iftype) {
5758 case NL80211_IFTYPE_AP:
5759 case NL80211_IFTYPE_P2P_GO:
5760 need_new_beacon = true;
5761
5762 /* useless if AP is not running */
5763 if (!wdev->beacon_interval)
5764 return -EINVAL;
5765 break;
5766 case NL80211_IFTYPE_ADHOC:
c6da674a 5767 case NL80211_IFTYPE_MESH_POINT:
ee4bc9e7
SW		 5768 break;
5769 default:
16ef1fe2 5770 return -EOPNOTSUPP;
ee4bc9e7 5771 }
16ef1fe2
SW		 5772
5773 memset(&params, 0, sizeof(params));
5774
5775 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5776 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5777 return -EINVAL;
5778
5779 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5780 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5781 return -EINVAL;
5782
5783 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5784
ee4bc9e7
SW		 5785 if (!need_new_beacon)
5786 goto skip_beacons;
5787
16ef1fe2
SW		 5788 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5789 if (err)
5790 return err;
5791
5792 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5793 info->attrs[NL80211_ATTR_CSA_IES],
5794 nl80211_policy);
5795 if (err)
5796 return err;
5797
5798 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5799 if (err)
5800 return err;
5801
5802 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5803 return -EINVAL;
5804
5805 params.counter_offset_beacon =
5806 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5807 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5808 return -EINVAL;
5809
5810 /* sanity check - counters should be the same */
5811 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5812 params.count)
5813 return -EINVAL;
5814
5815 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5816 params.counter_offset_presp =
5817 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5818 if (params.counter_offset_presp >=
5819 params.beacon_csa.probe_resp_len)
5820 return -EINVAL;
5821
5822 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5823 params.count)
5824 return -EINVAL;
5825 }
5826
ee4bc9e7 5827skip_beacons:
16ef1fe2
SW		 5828 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5829 if (err)
5830 return err;
5831
5832 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
5833 return -EINVAL;
5834
ee4bc9e7 5835 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
5336fa88
SW		 5836 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
5837 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
ee4bc9e7
SW		 5838 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5839 &params.chandef);
5840 if (err < 0) {
5841 return err;
5842 } else if (err) {
5843 radar_detect_width = BIT(params.chandef.width);
5844 params.radar_required = true;
5845 }
16ef1fe2
SW		 5846 }
5847
5848 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5849 params.chandef.chan,
5850 CHAN_MODE_SHARED,
5851 radar_detect_width);
5852 if (err)
5853 return err;
5854
5855 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5856 params.block_tx = true;
5857
c56589ed
SW		 5858 wdev_lock(wdev);
5859 err = rdev_channel_switch(rdev, dev, &params);
5860 wdev_unlock(wdev);
5861
5862 return err;
16ef1fe2
SW		 5863}
5864
9720bb3a
JB		 5865static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5866 u32 seq, int flags,
2a519311 5867 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5868 struct wireless_dev *wdev,
5869 struct cfg80211_internal_bss *intbss)
2a519311 5870{
48ab905d 5871 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5872 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5873 void *hdr;
5874 struct nlattr *bss;
8cef2c9d 5875 bool tsf = false;
48ab905d
JB		 5876
5877 ASSERT_WDEV_LOCK(wdev);
2a519311 5878
15e47304 5879 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5880 NL80211_CMD_NEW_SCAN_RESULTS);
5881 if (!hdr)
5882 return -1;
5883
9720bb3a
JB		 5884 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5885
97990a06
JB		 5886 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5887 goto nla_put_failure;
5888 if (wdev->netdev &&
9360ffd1
DM		 5889 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5890 goto nla_put_failure;
97990a06
JB		 5891 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5892 goto nla_put_failure;
2a519311
JB		 5893
5894 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5895 if (!bss)
5896 goto nla_put_failure;
9360ffd1 5897 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5898 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5899 goto nla_put_failure;
9caf0364
JB		 5900
5901 rcu_read_lock();
5902 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5903 if (ies) {
5904 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5905 goto fail_unlock_rcu;
5906 tsf = true;
5907 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5908 ies->len, ies->data))
5909 goto fail_unlock_rcu;
9caf0364
JB		 5910 }
5911 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5912 if (ies) {
5913 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5914 goto fail_unlock_rcu;
5915 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5916 ies->len, ies->data))
5917 goto fail_unlock_rcu;
9caf0364
JB		 5918 }
5919 rcu_read_unlock();
5920
9360ffd1
DM		 5921 if (res->beacon_interval &&
5922 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5923 goto nla_put_failure;
5924 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5925 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 5926 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 5927 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5928 jiffies_to_msecs(jiffies - intbss->ts)))
5929 goto nla_put_failure;
2a519311 5930
77965c97 5931 switch (rdev->wiphy.signal_type) {
2a519311 5932 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5933 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5934 goto nla_put_failure;
2a519311
JB		 5935 break;
5936 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5937 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5938 goto nla_put_failure;
2a519311
JB		 5939 break;
5940 default:
5941 break;
5942 }
5943
48ab905d 5944 switch (wdev->iftype) {
074ac8df 5945 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5946 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5947 if (intbss == wdev->current_bss &&
5948 nla_put_u32(msg, NL80211_BSS_STATUS,
5949 NL80211_BSS_STATUS_ASSOCIATED))
5950 goto nla_put_failure;
48ab905d
JB		 5951 break;
5952 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5953 if (intbss == wdev->current_bss &&
5954 nla_put_u32(msg, NL80211_BSS_STATUS,
5955 NL80211_BSS_STATUS_IBSS_JOINED))
5956 goto nla_put_failure;
48ab905d
JB		 5957 break;
5958 default:
5959 break;
5960 }
5961
2a519311
JB		 5962 nla_nest_end(msg, bss);
5963
5964 return genlmsg_end(msg, hdr);
5965
8cef2c9d
JB		 5966 fail_unlock_rcu:
5967 rcu_read_unlock();
2a519311
JB		 5968 nla_put_failure:
5969 genlmsg_cancel(msg, hdr);
5970 return -EMSGSIZE;
5971}
5972
97990a06 5973static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5974{
48ab905d 5975 struct cfg80211_registered_device *rdev;
2a519311 5976 struct cfg80211_internal_bss *scan;
48ab905d 5977 struct wireless_dev *wdev;
97990a06 5978 int start = cb->args[2], idx = 0;
2a519311
JB		 5979 int err;
5980
97990a06 5981 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5982 if (err)
5983 return err;
2a519311 5984
48ab905d
JB		 5985 wdev_lock(wdev);
5986 spin_lock_bh(&rdev->bss_lock);
5987 cfg80211_bss_expire(rdev);
5988
9720bb3a
JB		 5989 cb->seq = rdev->bss_generation;
5990
48ab905d 5991 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5992 if (++idx <= start)
5993 continue;
9720bb3a 5994 if (nl80211_send_bss(skb, cb,
2a519311 5995 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5996 rdev, wdev, scan) < 0) {
2a519311 5997 idx--;
67748893 5998 break;
2a519311
JB		 5999 }
6000 }
6001
48ab905d
JB		 6002 spin_unlock_bh(&rdev->bss_lock);
6003 wdev_unlock(wdev);
2a519311 6004
97990a06
JB		 6005 cb->args[2] = idx;
6006 nl80211_finish_wdev_dump(rdev);
2a519311 6007
67748893 6008 return skb->len;
2a519311
JB		 6009}
6010
15e47304 6011static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6012 int flags, struct net_device *dev,
6013 struct survey_info *survey)
6014{
6015 void *hdr;
6016 struct nlattr *infoattr;
6017
15e47304 6018 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6019 NL80211_CMD_NEW_SURVEY_RESULTS);
6020 if (!hdr)
6021 return -ENOMEM;
6022
9360ffd1
DM		 6023 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6024 goto nla_put_failure;
61fa713c
HS		 6025
6026 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6027 if (!infoattr)
6028 goto nla_put_failure;
6029
9360ffd1
DM		 6030 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6031 survey->channel->center_freq))
6032 goto nla_put_failure;
6033
6034 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6035 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6036 goto nla_put_failure;
6037 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6038 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6039 goto nla_put_failure;
6040 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6041 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6042 survey->channel_time))
6043 goto nla_put_failure;
6044 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6045 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6046 survey->channel_time_busy))
6047 goto nla_put_failure;
6048 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6049 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6050 survey->channel_time_ext_busy))
6051 goto nla_put_failure;
6052 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6053 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6054 survey->channel_time_rx))
6055 goto nla_put_failure;
6056 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6057 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6058 survey->channel_time_tx))
6059 goto nla_put_failure;
61fa713c
HS		 6060
6061 nla_nest_end(msg, infoattr);
6062
6063 return genlmsg_end(msg, hdr);
6064
6065 nla_put_failure:
6066 genlmsg_cancel(msg, hdr);
6067 return -EMSGSIZE;
6068}
6069
6070static int nl80211_dump_survey(struct sk_buff *skb,
6071 struct netlink_callback *cb)
6072{
6073 struct survey_info survey;
6074 struct cfg80211_registered_device *dev;
97990a06
JB		 6075 struct wireless_dev *wdev;
6076 int survey_idx = cb->args[2];
61fa713c
HS		 6077 int res;
6078
97990a06 6079 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 6080 if (res)
6081 return res;
61fa713c 6082
97990a06
JB		 6083 if (!wdev->netdev) {
6084 res = -EINVAL;
6085 goto out_err;
6086 }
6087
61fa713c
HS		 6088 if (!dev->ops->dump_survey) {
6089 res = -EOPNOTSUPP;
6090 goto out_err;
6091 }
6092
6093 while (1) {
180cdc79
LR		 6094 struct ieee80211_channel *chan;
6095
97990a06 6096 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6097 if (res == -ENOENT)
6098 break;
6099 if (res)
6100 goto out_err;
6101
180cdc79
LR		 6102 /* Survey without a channel doesn't make sense */
6103 if (!survey.channel) {
6104 res = -EINVAL;
6105 goto out;
6106 }
6107
6108 chan = ieee80211_get_channel(&dev->wiphy,
6109 survey.channel->center_freq);
6110 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6111 survey_idx++;
6112 continue;
6113 }
6114
61fa713c 6115 if (nl80211_send_survey(skb,
15e47304 6116 NETLINK_CB(cb->skb).portid,
61fa713c 6117 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6118 wdev->netdev, &survey) < 0)
61fa713c
HS		 6119 goto out;
6120 survey_idx++;
6121 }
6122
6123 out:
97990a06 6124 cb->args[2] = survey_idx;
61fa713c
HS		 6125 res = skb->len;
6126 out_err:
97990a06 6127 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 6128 return res;
6129}
6130
b23aa676
SO		 6131static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6132{
6133 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6134 NL80211_WPA_VERSION_2));
6135}
6136
636a5d36
JM		 6137static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6138{
4c476991
JB		 6139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6140 struct net_device *dev = info->user_ptr[1];
19957bb3 6141 struct ieee80211_channel *chan;
e39e5b5e
JM		 6142 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6143 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6144 enum nl80211_auth_type auth_type;
fffd0934 6145 struct key_parse key;
d5cdfacb 6146 bool local_state_change;
636a5d36 6147
f4a11bb0
JB		 6148 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6149 return -EINVAL;
6150
6151 if (!info->attrs[NL80211_ATTR_MAC])
6152 return -EINVAL;
6153
1778092e
JM		 6154 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6155 return -EINVAL;
6156
19957bb3
JB		 6157 if (!info->attrs[NL80211_ATTR_SSID])
6158 return -EINVAL;
6159
6160 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6161 return -EINVAL;
6162
fffd0934
JB		 6163 err = nl80211_parse_key(info, &key);
6164 if (err)
6165 return err;
6166
6167 if (key.idx >= 0) {
e31b8213
JB		 6168 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6169 return -EINVAL;
fffd0934
JB		 6170 if (!key.p.key || !key.p.key_len)
6171 return -EINVAL;
6172 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6173 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6174 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6175 key.p.key_len != WLAN_KEY_LEN_WEP104))
6176 return -EINVAL;
6177 if (key.idx > 4)
6178 return -EINVAL;
6179 } else {
6180 key.p.key_len = 0;
6181 key.p.key = NULL;
6182 }
6183
afea0b7a
JB		 6184 if (key.idx >= 0) {
6185 int i;
6186 bool ok = false;
6187 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6188 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6189 ok = true;
6190 break;
6191 }
6192 }
4c476991
JB		 6193 if (!ok)
6194 return -EINVAL;
afea0b7a
JB		 6195 }
6196
4c476991
JB		 6197 if (!rdev->ops->auth)
6198 return -EOPNOTSUPP;
636a5d36 6199
074ac8df 6200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6202 return -EOPNOTSUPP;
eec60b03 6203
19957bb3 6204 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 6205 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 6206 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6207 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6208 return -EINVAL;
636a5d36 6209
19957bb3
JB		 6210 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6211 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6212
6213 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6214 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6215 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6216 }
6217
19957bb3 6218 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6219 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6220 return -EINVAL;
636a5d36 6221
e39e5b5e
JM		 6222 if (auth_type == NL80211_AUTHTYPE_SAE &&
6223 !info->attrs[NL80211_ATTR_SAE_DATA])
6224 return -EINVAL;
6225
6226 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6227 if (auth_type != NL80211_AUTHTYPE_SAE)
6228 return -EINVAL;
6229 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6230 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6231 /* need to include at least Auth Transaction and Status Code */
6232 if (sae_data_len < 4)
6233 return -EINVAL;
6234 }
6235
d5cdfacb
JM		 6236 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6237
95de817b
JB		 6238 /*
6239 * Since we no longer track auth state, ignore
6240 * requests to only change local state.
6241 */
6242 if (local_state_change)
6243 return 0;
6244
91bf9b26
JB		 6245 wdev_lock(dev->ieee80211_ptr);
6246 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6247 ssid, ssid_len, ie, ie_len,
6248 key.p.key, key.p.key_len, key.idx,
6249 sae_data, sae_data_len);
6250 wdev_unlock(dev->ieee80211_ptr);
6251 return err;
636a5d36
JM		 6252}
6253
c0692b8f
JB		 6254static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6255 struct genl_info *info,
3dc27d25
JB		 6256 struct cfg80211_crypto_settings *settings,
6257 int cipher_limit)
b23aa676 6258{
c0b2bbd8
JB		 6259 memset(settings, 0, sizeof(*settings));
6260
b23aa676
SO		 6261 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6262
c0692b8f
JB		 6263 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6264 u16 proto;
6265 proto = nla_get_u16(
6266 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6267 settings->control_port_ethertype = cpu_to_be16(proto);
6268 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6269 proto != ETH_P_PAE)
6270 return -EINVAL;
6271 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6272 settings->control_port_no_encrypt = true;
6273 } else
6274 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6275
b23aa676
SO		 6276 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6277 void *data;
6278 int len, i;
6279
6280 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6281 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6282 settings->n_ciphers_pairwise = len / sizeof(u32);
6283
6284 if (len % sizeof(u32))
6285 return -EINVAL;
6286
3dc27d25 6287 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6288 return -EINVAL;
6289
6290 memcpy(settings->ciphers_pairwise, data, len);
6291
6292 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6293 if (!cfg80211_supported_cipher_suite(
6294 &rdev->wiphy,
b23aa676
SO		 6295 settings->ciphers_pairwise[i]))
6296 return -EINVAL;
6297 }
6298
6299 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6300 settings->cipher_group =
6301 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6302 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6303 settings->cipher_group))
b23aa676
SO		 6304 return -EINVAL;
6305 }
6306
6307 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6308 settings->wpa_versions =
6309 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6310 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6311 return -EINVAL;
6312 }
6313
6314 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6315 void *data;
6d30240e 6316 int len;
b23aa676
SO		 6317
6318 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6319 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6320 settings->n_akm_suites = len / sizeof(u32);
6321
6322 if (len % sizeof(u32))
6323 return -EINVAL;
6324
1b9ca027
JM		 6325 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6326 return -EINVAL;
6327
b23aa676 6328 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6329 }
6330
6331 return 0;
6332}
6333
636a5d36
JM		 6334static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6335{
4c476991
JB		 6336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6337 struct net_device *dev = info->user_ptr[1];
f444de05 6338 struct ieee80211_channel *chan;
f62fab73
JB		 6339 struct cfg80211_assoc_request req = {};
6340 const u8 *bssid, *ssid;
6341 int err, ssid_len = 0;
636a5d36 6342
f4a11bb0
JB		 6343 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6344 return -EINVAL;
6345
6346 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6347 !info->attrs[NL80211_ATTR_SSID] ||
6348 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6349 return -EINVAL;
6350
4c476991
JB		 6351 if (!rdev->ops->assoc)
6352 return -EOPNOTSUPP;
636a5d36 6353
074ac8df 6354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6355 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6356 return -EOPNOTSUPP;
eec60b03 6357
19957bb3 6358 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6359
19957bb3
JB		 6360 chan = ieee80211_get_channel(&rdev->wiphy,
6361 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6362 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6363 return -EINVAL;
636a5d36 6364
19957bb3
JB		 6365 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6366 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6367
6368 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6369 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6370 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6371 }
6372
dc6382ce 6373 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6374 enum nl80211_mfp mfp =
dc6382ce 6375 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6376 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6377 req.use_mfp = true;
4c476991
JB		 6378 else if (mfp != NL80211_MFP_NO)
6379 return -EINVAL;
dc6382ce
JM		 6380 }
6381
3e5d7649 6382 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6383 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6384
7e7c8926 6385 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6386 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6387
6388 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6389 memcpy(&req.ht_capa_mask,
6390 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6391 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6392
6393 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6394 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6395 return -EINVAL;
f62fab73
JB		 6396 memcpy(&req.ht_capa,
6397 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6398 sizeof(req.ht_capa));
7e7c8926
BG		 6399 }
6400
ee2aca34 6401 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6402 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6403
6404 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6405 memcpy(&req.vht_capa_mask,
6406 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6407 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6408
6409 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6410 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6411 return -EINVAL;
f62fab73
JB		 6412 memcpy(&req.vht_capa,
6413 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6414 sizeof(req.vht_capa));
ee2aca34
JB		 6415 }
6416
f62fab73 6417 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6418 if (!err) {
6419 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6420 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6421 ssid, ssid_len, &req);
91bf9b26
JB		 6422 wdev_unlock(dev->ieee80211_ptr);
6423 }
636a5d36 6424
636a5d36
JM		 6425 return err;
6426}
6427
6428static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6429{
4c476991
JB		 6430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6431 struct net_device *dev = info->user_ptr[1];
19957bb3 6432 const u8 *ie = NULL, *bssid;
91bf9b26 6433 int ie_len = 0, err;
19957bb3 6434 u16 reason_code;
d5cdfacb 6435 bool local_state_change;
636a5d36 6436
f4a11bb0
JB		 6437 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6438 return -EINVAL;
6439
6440 if (!info->attrs[NL80211_ATTR_MAC])
6441 return -EINVAL;
6442
6443 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6444 return -EINVAL;
6445
4c476991
JB		 6446 if (!rdev->ops->deauth)
6447 return -EOPNOTSUPP;
636a5d36 6448
074ac8df 6449 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6450 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6451 return -EOPNOTSUPP;
eec60b03 6452
19957bb3 6453 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6454
19957bb3
JB		 6455 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6456 if (reason_code == 0) {
f4a11bb0 6457 /* Reason Code 0 is reserved */
4c476991 6458 return -EINVAL;
255e737e 6459 }
636a5d36
JM		 6460
6461 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6462 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6463 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6464 }
6465
d5cdfacb
JM		 6466 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6467
91bf9b26
JB		 6468 wdev_lock(dev->ieee80211_ptr);
6469 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6470 local_state_change);
6471 wdev_unlock(dev->ieee80211_ptr);
6472 return err;
636a5d36
JM		 6473}
6474
6475static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6476{
4c476991
JB		 6477 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6478 struct net_device *dev = info->user_ptr[1];
19957bb3 6479 const u8 *ie = NULL, *bssid;
91bf9b26 6480 int ie_len = 0, err;
19957bb3 6481 u16 reason_code;
d5cdfacb 6482 bool local_state_change;
636a5d36 6483
f4a11bb0
JB		 6484 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6485 return -EINVAL;
6486
6487 if (!info->attrs[NL80211_ATTR_MAC])
6488 return -EINVAL;
6489
6490 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6491 return -EINVAL;
6492
4c476991
JB		 6493 if (!rdev->ops->disassoc)
6494 return -EOPNOTSUPP;
636a5d36 6495
074ac8df 6496 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6497 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6498 return -EOPNOTSUPP;
eec60b03 6499
19957bb3 6500 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6501
19957bb3
JB		 6502 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6503 if (reason_code == 0) {
f4a11bb0 6504 /* Reason Code 0 is reserved */
4c476991 6505 return -EINVAL;
255e737e 6506 }
636a5d36
JM		 6507
6508 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6509 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6510 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6511 }
6512
d5cdfacb
JM		 6513 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6514
91bf9b26
JB		 6515 wdev_lock(dev->ieee80211_ptr);
6516 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6517 local_state_change);
6518 wdev_unlock(dev->ieee80211_ptr);
6519 return err;
636a5d36
JM		 6520}
6521
dd5b4cc7
FF		 6522static bool
6523nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6524 int mcast_rate[IEEE80211_NUM_BANDS],
6525 int rateval)
6526{
6527 struct wiphy *wiphy = &rdev->wiphy;
6528 bool found = false;
6529 int band, i;
6530
6531 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6532 struct ieee80211_supported_band *sband;
6533
6534 sband = wiphy->bands[band];
6535 if (!sband)
6536 continue;
6537
6538 for (i = 0; i < sband->n_bitrates; i++) {
6539 if (sband->bitrates[i].bitrate == rateval) {
6540 mcast_rate[band] = i + 1;
6541 found = true;
6542 break;
6543 }
6544 }
6545 }
6546
6547 return found;
6548}
6549
04a773ad
JB		 6550static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6551{
4c476991
JB		 6552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6553 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6554 struct cfg80211_ibss_params ibss;
6555 struct wiphy *wiphy;
fffd0934 6556 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6557 int err;
6558
8e30bc55
JB		 6559 memset(&ibss, 0, sizeof(ibss));
6560
04a773ad
JB		 6561 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6562 return -EINVAL;
6563
683b6d3b 6564 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6565 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6566 return -EINVAL;
6567
8e30bc55
JB		 6568 ibss.beacon_interval = 100;
6569
6570 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6571 ibss.beacon_interval =
6572 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6573 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6574 return -EINVAL;
6575 }
6576
4c476991
JB		 6577 if (!rdev->ops->join_ibss)
6578 return -EOPNOTSUPP;
04a773ad 6579
4c476991
JB		 6580 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6581 return -EOPNOTSUPP;
04a773ad 6582
79c97e97 6583 wiphy = &rdev->wiphy;
04a773ad 6584
39193498 6585 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6586 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6587
6588 if (!is_valid_ether_addr(ibss.bssid))
6589 return -EINVAL;
6590 }
04a773ad
JB		 6591 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6592 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6593
6594 if (info->attrs[NL80211_ATTR_IE]) {
6595 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6596 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6597 }
6598
683b6d3b
JB		 6599 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6600 if (err)
6601 return err;
04a773ad 6602
683b6d3b 6603 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6604 return -EINVAL;
6605
2f301ab2 6606 switch (ibss.chandef.width) {
bf372645
SW		 6607 case NL80211_CHAN_WIDTH_5:
6608 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6609 case NL80211_CHAN_WIDTH_20_NOHT:
6610 break;
6611 case NL80211_CHAN_WIDTH_20:
6612 case NL80211_CHAN_WIDTH_40:
6613 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6614 break;
6615 default:
c04d6150 6616 return -EINVAL;
2f301ab2 6617 }
db9c64cf 6618
04a773ad 6619 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6620 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6621
fbd2c8dc
TP		 6622 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6623 u8 *rates =
6624 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6625 int n_rates =
6626 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6627 struct ieee80211_supported_band *sband =
683b6d3b 6628 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6629
34850ab2
JB		 6630 err = ieee80211_get_ratemask(sband, rates, n_rates,
6631 &ibss.basic_rates);
6632 if (err)
6633 return err;
fbd2c8dc 6634 }
dd5b4cc7 6635
803768f5
SW		 6636 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6637 memcpy(&ibss.ht_capa_mask,
6638 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6639 sizeof(ibss.ht_capa_mask));
6640
6641 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6642 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6643 return -EINVAL;
6644 memcpy(&ibss.ht_capa,
6645 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6646 sizeof(ibss.ht_capa));
6647 }
6648
dd5b4cc7
FF		 6649 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6650 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6651 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6652 return -EINVAL;
fbd2c8dc 6653
4c476991 6654 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6655 bool no_ht = false;
6656
4c476991 6657 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6658 info->attrs[NL80211_ATTR_KEYS],
6659 &no_ht);
4c476991
JB		 6660 if (IS_ERR(connkeys))
6661 return PTR_ERR(connkeys);
de7044ee 6662
3d9d1d66
JB		 6663 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6664 no_ht) {
de7044ee
SM		 6665 kfree(connkeys);
6666 return -EINVAL;
6667 }
4c476991 6668 }
04a773ad 6669
267335d6
AQ		 6670 ibss.control_port =
6671 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6672
5336fa88
SW		 6673 ibss.userspace_handles_dfs =
6674 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6675
4c476991 6676 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6677 if (err)
6678 kfree(connkeys);
04a773ad
JB		 6679 return err;
6680}
6681
6682static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6683{
4c476991
JB		 6684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6685 struct net_device *dev = info->user_ptr[1];
04a773ad 6686
4c476991
JB		 6687 if (!rdev->ops->leave_ibss)
6688 return -EOPNOTSUPP;
04a773ad 6689
4c476991
JB		 6690 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6691 return -EOPNOTSUPP;
04a773ad 6692
4c476991 6693 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6694}
6695
f4e583c8
AQ		 6696static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6697{
6698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6699 struct net_device *dev = info->user_ptr[1];
6700 int mcast_rate[IEEE80211_NUM_BANDS];
6701 u32 nla_rate;
6702 int err;
6703
6704 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6705 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6706 return -EOPNOTSUPP;
6707
6708 if (!rdev->ops->set_mcast_rate)
6709 return -EOPNOTSUPP;
6710
6711 memset(mcast_rate, 0, sizeof(mcast_rate));
6712
6713 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6714 return -EINVAL;
6715
6716 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6717 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6718 return -EINVAL;
6719
6720 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6721
6722 return err;
6723}
6724
ad7e718c
JB		 6725static struct sk_buff *
6726__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6727 int approxlen, u32 portid, u32 seq,
6728 enum nl80211_commands cmd,
6729 enum nl80211_attrs attr, gfp_t gfp)
6730{
6731 struct sk_buff *skb;
6732 void *hdr;
6733 struct nlattr *data;
6734
6735 skb = nlmsg_new(approxlen + 100, gfp);
6736 if (!skb)
6737 return NULL;
6738
6739 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6740 if (!hdr) {
6741 kfree_skb(skb);
6742 return NULL;
6743 }
6744
6745 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6746 goto nla_put_failure;
6747 data = nla_nest_start(skb, attr);
6748
6749 ((void **)skb->cb)[0] = rdev;
6750 ((void **)skb->cb)[1] = hdr;
6751 ((void **)skb->cb)[2] = data;
6752
6753 return skb;
6754
6755 nla_put_failure:
6756 kfree_skb(skb);
6757 return NULL;
6758}
f4e583c8 6759
aff89a9b 6760#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6761static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6762{
4c476991 6763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6764 struct wireless_dev *wdev =
6765 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6766 int err;
6767
fc73f11f
DS		 6768 if (!rdev->ops->testmode_cmd)
6769 return -EOPNOTSUPP;
6770
6771 if (IS_ERR(wdev)) {
6772 err = PTR_ERR(wdev);
6773 if (err != -EINVAL)
6774 return err;
6775 wdev = NULL;
6776 } else if (wdev->wiphy != &rdev->wiphy) {
6777 return -EINVAL;
6778 }
6779
aff89a9b
JB		 6780 if (!info->attrs[NL80211_ATTR_TESTDATA])
6781 return -EINVAL;
6782
ad7e718c 6783 rdev->cur_cmd_info = info;
fc73f11f 6784 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6785 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6786 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 6787 rdev->cur_cmd_info = NULL;
aff89a9b 6788
aff89a9b
JB		 6789 return err;
6790}
6791
71063f0e
WYG		 6792static int nl80211_testmode_dump(struct sk_buff *skb,
6793 struct netlink_callback *cb)
6794{
00918d33 6795 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6796 int err;
6797 long phy_idx;
6798 void *data = NULL;
6799 int data_len = 0;
6800
5fe231e8
JB		 6801 rtnl_lock();
6802
71063f0e
WYG		 6803 if (cb->args[0]) {
6804 /*
6805 * 0 is a valid index, but not valid for args[0],
6806 * so we need to offset by 1.
6807 */
6808 phy_idx = cb->args[0] - 1;
6809 } else {
6810 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6811 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6812 nl80211_policy);
6813 if (err)
5fe231e8 6814 goto out_err;
00918d33 6815
2bd7e35d
JB		 6816 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6817 nl80211_fam.attrbuf);
6818 if (IS_ERR(rdev)) {
5fe231e8
JB		 6819 err = PTR_ERR(rdev);
6820 goto out_err;
00918d33 6821 }
2bd7e35d
JB		 6822 phy_idx = rdev->wiphy_idx;
6823 rdev = NULL;
2bd7e35d 6824
71063f0e
WYG		 6825 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6826 cb->args[1] =
6827 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6828 }
6829
6830 if (cb->args[1]) {
6831 data = nla_data((void *)cb->args[1]);
6832 data_len = nla_len((void *)cb->args[1]);
6833 }
6834
00918d33
JB		 6835 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6836 if (!rdev) {
5fe231e8
JB		 6837 err = -ENOENT;
6838 goto out_err;
71063f0e 6839 }
71063f0e 6840
00918d33 6841 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6842 err = -EOPNOTSUPP;
6843 goto out_err;
6844 }
6845
6846 while (1) {
15e47304 6847 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6848 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6849 NL80211_CMD_TESTMODE);
6850 struct nlattr *tmdata;
6851
cb35fba3
DC		 6852 if (!hdr)
6853 break;
6854
9360ffd1 6855 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6856 genlmsg_cancel(skb, hdr);
6857 break;
6858 }
6859
6860 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6861 if (!tmdata) {
6862 genlmsg_cancel(skb, hdr);
6863 break;
6864 }
e35e4d28 6865 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6866 nla_nest_end(skb, tmdata);
6867
6868 if (err == -ENOBUFS || err == -ENOENT) {
6869 genlmsg_cancel(skb, hdr);
6870 break;
6871 } else if (err) {
6872 genlmsg_cancel(skb, hdr);
6873 goto out_err;
6874 }
6875
6876 genlmsg_end(skb, hdr);
6877 }
6878
6879 err = skb->len;
6880 /* see above */
6881 cb->args[0] = phy_idx + 1;
6882 out_err:
5fe231e8 6883 rtnl_unlock();
71063f0e
WYG		 6884 return err;
6885}
6886
aff89a9b
JB		 6887struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6888 int approxlen, gfp_t gfp)
6889{
6890 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6891
ad7e718c
JB		 6892 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6893 NL80211_CMD_TESTMODE,
6894 NL80211_ATTR_TESTDATA, gfp);
aff89a9b
JB		 6895}
6896EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6897
6898void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6899{
a0ec570f 6900 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
aff89a9b
JB		 6901 void *hdr = ((void **)skb->cb)[1];
6902 struct nlattr *data = ((void **)skb->cb)[2];
6903
6904 nla_nest_end(skb, data);
6905 genlmsg_end(skb, hdr);
68eb5503 6906 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
2a94fe48 6907 NL80211_MCGRP_TESTMODE, gfp);
aff89a9b
JB		 6908}
6909EXPORT_SYMBOL(cfg80211_testmode_event);
6910#endif
6911
b23aa676
SO		 6912static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6913{
4c476991
JB		 6914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6915 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6916 struct cfg80211_connect_params connect;
6917 struct wiphy *wiphy;
fffd0934 6918 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6919 int err;
6920
6921 memset(&connect, 0, sizeof(connect));
6922
6923 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6924 return -EINVAL;
6925
6926 if (!info->attrs[NL80211_ATTR_SSID] ||
6927 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6928 return -EINVAL;
6929
6930 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6931 connect.auth_type =
6932 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6933 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6934 NL80211_CMD_CONNECT))
b23aa676
SO		 6935 return -EINVAL;
6936 } else
6937 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6938
6939 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6940
c0692b8f 6941 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6942 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6943 if (err)
6944 return err;
b23aa676 6945
074ac8df 6946 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6947 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6948 return -EOPNOTSUPP;
b23aa676 6949
79c97e97 6950 wiphy = &rdev->wiphy;
b23aa676 6951
4486ea98
BS		 6952 connect.bg_scan_period = -1;
6953 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6954 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6955 connect.bg_scan_period =
6956 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6957 }
6958
b23aa676
SO		 6959 if (info->attrs[NL80211_ATTR_MAC])
6960 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6961 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6962 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6963
6964 if (info->attrs[NL80211_ATTR_IE]) {
6965 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6966 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6967 }
6968
cee00a95
JM		 6969 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6970 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6971 if (connect.mfp != NL80211_MFP_REQUIRED &&
6972 connect.mfp != NL80211_MFP_NO)
6973 return -EINVAL;
6974 } else {
6975 connect.mfp = NL80211_MFP_NO;
6976 }
6977
b23aa676
SO		 6978 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6979 connect.channel =
6980 ieee80211_get_channel(wiphy,
6981 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6982 if (!connect.channel ||
4c476991
JB		 6983 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6984 return -EINVAL;
b23aa676
SO		 6985 }
6986
fffd0934
JB		 6987 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6988 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6989 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6990 if (IS_ERR(connkeys))
6991 return PTR_ERR(connkeys);
fffd0934
JB		 6992 }
6993
7e7c8926
BG		 6994 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6995 connect.flags |= ASSOC_REQ_DISABLE_HT;
6996
6997 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6998 memcpy(&connect.ht_capa_mask,
6999 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7000 sizeof(connect.ht_capa_mask));
7001
7002 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7003 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7004 kfree(connkeys);
7e7c8926 7005 return -EINVAL;
b4e4f47e 7006 }
7e7c8926
BG		 7007 memcpy(&connect.ht_capa,
7008 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7009 sizeof(connect.ht_capa));
7010 }
7011
ee2aca34
JB		 7012 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7013 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7014
7015 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7016 memcpy(&connect.vht_capa_mask,
7017 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7018 sizeof(connect.vht_capa_mask));
7019
7020 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7021 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7022 kfree(connkeys);
7023 return -EINVAL;
7024 }
7025 memcpy(&connect.vht_capa,
7026 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7027 sizeof(connect.vht_capa));
7028 }
7029
83739b03
JB		 7030 wdev_lock(dev->ieee80211_ptr);
7031 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7032 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7033 if (err)
7034 kfree(connkeys);
b23aa676
SO		 7035 return err;
7036}
7037
7038static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7039{
4c476991
JB		 7040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7041 struct net_device *dev = info->user_ptr[1];
b23aa676 7042 u16 reason;
83739b03 7043 int ret;
b23aa676
SO		 7044
7045 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7046 reason = WLAN_REASON_DEAUTH_LEAVING;
7047 else
7048 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7049
7050 if (reason == 0)
7051 return -EINVAL;
7052
074ac8df 7053 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7054 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7055 return -EOPNOTSUPP;
b23aa676 7056
83739b03
JB		 7057 wdev_lock(dev->ieee80211_ptr);
7058 ret = cfg80211_disconnect(rdev, dev, reason, true);
7059 wdev_unlock(dev->ieee80211_ptr);
7060 return ret;
b23aa676
SO		 7061}
7062
463d0183
JB		 7063static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7064{
4c476991 7065 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7066 struct net *net;
7067 int err;
7068 u32 pid;
7069
7070 if (!info->attrs[NL80211_ATTR_PID])
7071 return -EINVAL;
7072
7073 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7074
463d0183 7075 net = get_net_ns_by_pid(pid);
4c476991
JB		 7076 if (IS_ERR(net))
7077 return PTR_ERR(net);
463d0183
JB		 7078
7079 err = 0;
7080
7081 /* check if anything to do */
4c476991
JB		 7082 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7083 err = cfg80211_switch_netns(rdev, net);
463d0183 7084
463d0183 7085 put_net(net);
463d0183
JB		 7086 return err;
7087}
7088
67fbb16b
SO		 7089static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7090{
4c476991 7091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7092 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7093 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7094 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7095 struct cfg80211_pmksa pmksa;
7096
7097 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7098
7099 if (!info->attrs[NL80211_ATTR_MAC])
7100 return -EINVAL;
7101
7102 if (!info->attrs[NL80211_ATTR_PMKID])
7103 return -EINVAL;
7104
67fbb16b
SO		 7105 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7106 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7107
074ac8df 7108 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7109 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7110 return -EOPNOTSUPP;
67fbb16b
SO		 7111
7112 switch (info->genlhdr->cmd) {
7113 case NL80211_CMD_SET_PMKSA:
7114 rdev_ops = rdev->ops->set_pmksa;
7115 break;
7116 case NL80211_CMD_DEL_PMKSA:
7117 rdev_ops = rdev->ops->del_pmksa;
7118 break;
7119 default:
7120 WARN_ON(1);
7121 break;
7122 }
7123
4c476991
JB		 7124 if (!rdev_ops)
7125 return -EOPNOTSUPP;
67fbb16b 7126
4c476991 7127 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7128}
7129
7130static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7131{
4c476991
JB		 7132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7133 struct net_device *dev = info->user_ptr[1];
67fbb16b 7134
074ac8df 7135 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7136 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7137 return -EOPNOTSUPP;
67fbb16b 7138
4c476991
JB		 7139 if (!rdev->ops->flush_pmksa)
7140 return -EOPNOTSUPP;
67fbb16b 7141
e35e4d28 7142 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7143}
7144
109086ce
AN		 7145static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7146{
7147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7148 struct net_device *dev = info->user_ptr[1];
7149 u8 action_code, dialog_token;
7150 u16 status_code;
7151 u8 *peer;
7152
7153 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7154 !rdev->ops->tdls_mgmt)
7155 return -EOPNOTSUPP;
7156
7157 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7158 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7159 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7160 !info->attrs[NL80211_ATTR_IE] ||
7161 !info->attrs[NL80211_ATTR_MAC])
7162 return -EINVAL;
7163
7164 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7165 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7166 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7167 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7168
e35e4d28
HG		 7169 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7170 dialog_token, status_code,
7171 nla_data(info->attrs[NL80211_ATTR_IE]),
7172 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7173}
7174
7175static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7176{
7177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7178 struct net_device *dev = info->user_ptr[1];
7179 enum nl80211_tdls_operation operation;
7180 u8 *peer;
7181
7182 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7183 !rdev->ops->tdls_oper)
7184 return -EOPNOTSUPP;
7185
7186 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7187 !info->attrs[NL80211_ATTR_MAC])
7188 return -EINVAL;
7189
7190 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7191 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7192
e35e4d28 7193 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7194}
7195
9588bbd5
JM		 7196static int nl80211_remain_on_channel(struct sk_buff *skb,
7197 struct genl_info *info)
7198{
4c476991 7199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7200 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7201 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7202 struct sk_buff *msg;
7203 void *hdr;
7204 u64 cookie;
683b6d3b 7205 u32 duration;
9588bbd5
JM		 7206 int err;
7207
7208 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7209 !info->attrs[NL80211_ATTR_DURATION])
7210 return -EINVAL;
7211
7212 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7213
ebf348fc
JB		 7214 if (!rdev->ops->remain_on_channel ||
7215 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7216 return -EOPNOTSUPP;
7217
9588bbd5 7218 /*
ebf348fc
JB		 7219 * We should be on that channel for at least a minimum amount of
7220 * time (10ms) but no longer than the driver supports.
9588bbd5 7221 */
ebf348fc 7222 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7223 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7224 return -EINVAL;
7225
683b6d3b
JB		 7226 err = nl80211_parse_chandef(rdev, info, &chandef);
7227 if (err)
7228 return err;
9588bbd5
JM		 7229
7230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7231 if (!msg)
7232 return -ENOMEM;
9588bbd5 7233
15e47304 7234 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7235 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7236 if (!hdr) {
7237 err = -ENOBUFS;
9588bbd5
JM		 7238 goto free_msg;
7239 }
7240
683b6d3b
JB		 7241 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7242 duration, &cookie);
9588bbd5
JM		 7243
7244 if (err)
7245 goto free_msg;
7246
9360ffd1
DM		 7247 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7248 goto nla_put_failure;
9588bbd5
JM		 7249
7250 genlmsg_end(msg, hdr);
4c476991
JB		 7251
7252 return genlmsg_reply(msg, info);
9588bbd5
JM		 7253
7254 nla_put_failure:
7255 err = -ENOBUFS;
7256 free_msg:
7257 nlmsg_free(msg);
9588bbd5
JM		 7258 return err;
7259}
7260
7261static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7262 struct genl_info *info)
7263{
4c476991 7264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7265 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7266 u64 cookie;
9588bbd5
JM		 7267
7268 if (!info->attrs[NL80211_ATTR_COOKIE])
7269 return -EINVAL;
7270
4c476991
JB		 7271 if (!rdev->ops->cancel_remain_on_channel)
7272 return -EOPNOTSUPP;
9588bbd5 7273
9588bbd5
JM		 7274 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7275
e35e4d28 7276 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7277}
7278
13ae75b1
JM		 7279static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7280 u8 *rates, u8 rates_len)
7281{
7282 u8 i;
7283 u32 mask = 0;
7284
7285 for (i = 0; i < rates_len; i++) {
7286 int rate = (rates[i] & 0x7f) * 5;
7287 int ridx;
7288 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7289 struct ieee80211_rate *srate =
7290 &sband->bitrates[ridx];
7291 if (rate == srate->bitrate) {
7292 mask |= 1 << ridx;
7293 break;
7294 }
7295 }
7296 if (ridx == sband->n_bitrates)
7297 return 0; /* rate not found */
7298 }
7299
7300 return mask;
7301}
7302
24db78c0
SW		 7303static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7304 u8 *rates, u8 rates_len,
7305 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7306{
7307 u8 i;
7308
7309 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7310
7311 for (i = 0; i < rates_len; i++) {
7312 int ridx, rbit;
7313
7314 ridx = rates[i] / 8;
7315 rbit = BIT(rates[i] % 8);
7316
7317 /* check validity */
910570b5 7318 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7319 return false;
7320
7321 /* check availability */
7322 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7323 mcs[ridx] |= rbit;
7324 else
7325 return false;
7326 }
7327
7328 return true;
7329}
7330
b54452b0 7331static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7332 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7333 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7334 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7335 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7336};
7337
7338static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7339 struct genl_info *info)
7340{
7341 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7343 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7344 int rem, i;
7345 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7346 struct nlattr *tx_rates;
7347 struct ieee80211_supported_band *sband;
7348
4c476991
JB		 7349 if (!rdev->ops->set_bitrate_mask)
7350 return -EOPNOTSUPP;
13ae75b1
JM		 7351
7352 memset(&mask, 0, sizeof(mask));
7353 /* Default to all rates enabled */
7354 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7355 sband = rdev->wiphy.bands[i];
7869303b
JD		 7356
7357 if (!sband)
7358 continue;
7359
7360 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7361 memcpy(mask.control[i].ht_mcs,
7869303b 7362 sband->ht_cap.mcs.rx_mask,
d1e33e65 7363 sizeof(mask.control[i].ht_mcs));
13ae75b1
JM		 7364 }
7365
b9243ab0
JD		 7366 /* if no rates are given set it back to the defaults */
7367 if (!info->attrs[NL80211_ATTR_TX_RATES])
7368 goto out;
7369
13ae75b1
JM		 7370 /*
7371 * The nested attribute uses enum nl80211_band as the index. This maps
7372 * directly to the enum ieee80211_band values used in cfg80211.
7373 */
24db78c0 7374 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7375 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7376 {
7377 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7378 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7379 return -EINVAL;
13ae75b1 7380 sband = rdev->wiphy.bands[band];
4c476991
JB		 7381 if (sband == NULL)
7382 return -EINVAL;
13ae75b1
JM		 7383 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7384 nla_len(tx_rates), nl80211_txattr_policy);
7385 if (tb[NL80211_TXRATE_LEGACY]) {
7386 mask.control[band].legacy = rateset_to_mask(
7387 sband,
7388 nla_data(tb[NL80211_TXRATE_LEGACY]),
7389 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7390 if ((mask.control[band].legacy == 0) &&
7391 nla_len(tb[NL80211_TXRATE_LEGACY]))
7392 return -EINVAL;
24db78c0 7393 }
d1e33e65 7394 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7395 if (!ht_rateset_to_mask(
7396 sband,
d1e33e65
JD		 7397 nla_data(tb[NL80211_TXRATE_HT]),
7398 nla_len(tb[NL80211_TXRATE_HT]),
7399 mask.control[band].ht_mcs))
24db78c0
SW		 7400 return -EINVAL;
7401 }
7402
7403 if (mask.control[band].legacy == 0) {
7404 /* don't allow empty legacy rates if HT
7405 * is not even supported. */
7406 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7407 return -EINVAL;
7408
7409 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7410 if (mask.control[band].ht_mcs[i])
24db78c0
SW		 7411 break;
7412
7413 /* legacy and mcs rates may not be both empty */
7414 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7415 return -EINVAL;
13ae75b1
JM		 7416 }
7417 }
7418
b9243ab0 7419out:
e35e4d28 7420 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7421}
7422
2e161f78 7423static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7424{
4c476991 7425 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7426 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7427 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7428
7429 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7430 return -EINVAL;
7431
2e161f78
JB		 7432 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7433 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7434
71bbc994
JB		 7435 switch (wdev->iftype) {
7436 case NL80211_IFTYPE_STATION:
7437 case NL80211_IFTYPE_ADHOC:
7438 case NL80211_IFTYPE_P2P_CLIENT:
7439 case NL80211_IFTYPE_AP:
7440 case NL80211_IFTYPE_AP_VLAN:
7441 case NL80211_IFTYPE_MESH_POINT:
7442 case NL80211_IFTYPE_P2P_GO:
98104fde 7443 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7444 break;
7445 default:
4c476991 7446 return -EOPNOTSUPP;
71bbc994 7447 }
026331c4
JM		 7448
7449 /* not much point in registering if we can't reply */
4c476991
JB		 7450 if (!rdev->ops->mgmt_tx)
7451 return -EOPNOTSUPP;
026331c4 7452
15e47304 7453 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7454 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7455 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7456}
7457
2e161f78 7458static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7459{
4c476991 7460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7461 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7462 struct cfg80211_chan_def chandef;
026331c4 7463 int err;
d64d373f 7464 void *hdr = NULL;
026331c4 7465 u64 cookie;
e247bd90 7466 struct sk_buff *msg = NULL;
b176e629
AO		 7467 struct cfg80211_mgmt_tx_params params = {
7468 .dont_wait_for_ack =
7469 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7470 };
026331c4 7471
683b6d3b 7472 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7473 return -EINVAL;
7474
4c476991
JB		 7475 if (!rdev->ops->mgmt_tx)
7476 return -EOPNOTSUPP;
026331c4 7477
71bbc994 7478 switch (wdev->iftype) {
ea141b75
AQ		 7479 case NL80211_IFTYPE_P2P_DEVICE:
7480 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7481 return -EINVAL;
71bbc994
JB		 7482 case NL80211_IFTYPE_STATION:
7483 case NL80211_IFTYPE_ADHOC:
7484 case NL80211_IFTYPE_P2P_CLIENT:
7485 case NL80211_IFTYPE_AP:
7486 case NL80211_IFTYPE_AP_VLAN:
7487 case NL80211_IFTYPE_MESH_POINT:
7488 case NL80211_IFTYPE_P2P_GO:
7489 break;
7490 default:
4c476991 7491 return -EOPNOTSUPP;
71bbc994 7492 }
026331c4 7493
f7ca38df 7494 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7495 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7496 return -EINVAL;
b176e629 7497 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7498
7499 /*
7500 * We should wait on the channel for at least a minimum amount
7501 * of time (10ms) but no longer than the driver supports.
7502 */
b176e629
AO		 7503 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7504 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7505 return -EINVAL;
7506
f7ca38df
JB		 7507 }
7508
b176e629 7509 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7510
b176e629 7511 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7512 return -EINVAL;
7513
b176e629 7514 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7515
ea141b75
AQ		 7516 /* get the channel if any has been specified, otherwise pass NULL to
7517 * the driver. The latter will use the current one
7518 */
7519 chandef.chan = NULL;
7520 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7521 err = nl80211_parse_chandef(rdev, info, &chandef);
7522 if (err)
7523 return err;
7524 }
7525
b176e629 7526 if (!chandef.chan && params.offchan)
ea141b75 7527 return -EINVAL;
026331c4 7528
b176e629 7529 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7530 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7531 if (!msg)
7532 return -ENOMEM;
026331c4 7533
15e47304 7534 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7535 NL80211_CMD_FRAME);
cb35fba3
DC		 7536 if (!hdr) {
7537 err = -ENOBUFS;
e247bd90
JB		 7538 goto free_msg;
7539 }
026331c4 7540 }
e247bd90 7541
b176e629
AO		 7542 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7543 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7544 params.chan = chandef.chan;
7545 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7546 if (err)
7547 goto free_msg;
7548
e247bd90 7549 if (msg) {
9360ffd1
DM		 7550 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7551 goto nla_put_failure;
026331c4 7552
e247bd90
JB		 7553 genlmsg_end(msg, hdr);
7554 return genlmsg_reply(msg, info);
7555 }
7556
7557 return 0;
026331c4
JM		 7558
7559 nla_put_failure:
7560 err = -ENOBUFS;
7561 free_msg:
7562 nlmsg_free(msg);
026331c4
JM		 7563 return err;
7564}
7565
f7ca38df
JB		 7566static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7567{
7568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7569 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7570 u64 cookie;
7571
7572 if (!info->attrs[NL80211_ATTR_COOKIE])
7573 return -EINVAL;
7574
7575 if (!rdev->ops->mgmt_tx_cancel_wait)
7576 return -EOPNOTSUPP;
7577
71bbc994
JB		 7578 switch (wdev->iftype) {
7579 case NL80211_IFTYPE_STATION:
7580 case NL80211_IFTYPE_ADHOC:
7581 case NL80211_IFTYPE_P2P_CLIENT:
7582 case NL80211_IFTYPE_AP:
7583 case NL80211_IFTYPE_AP_VLAN:
7584 case NL80211_IFTYPE_P2P_GO:
98104fde 7585 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7586 break;
7587 default:
f7ca38df 7588 return -EOPNOTSUPP;
71bbc994 7589 }
f7ca38df
JB		 7590
7591 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7592
e35e4d28 7593 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7594}
7595
ffb9eb3d
KV		 7596static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7597{
4c476991 7598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7599 struct wireless_dev *wdev;
4c476991 7600 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7601 u8 ps_state;
7602 bool state;
7603 int err;
7604
4c476991
JB		 7605 if (!info->attrs[NL80211_ATTR_PS_STATE])
7606 return -EINVAL;
ffb9eb3d
KV		 7607
7608 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7609
4c476991
JB		 7610 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7611 return -EINVAL;
ffb9eb3d
KV		 7612
7613 wdev = dev->ieee80211_ptr;
7614
4c476991
JB		 7615 if (!rdev->ops->set_power_mgmt)
7616 return -EOPNOTSUPP;
ffb9eb3d
KV		 7617
7618 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7619
7620 if (state == wdev->ps)
4c476991 7621 return 0;
ffb9eb3d 7622
e35e4d28 7623 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7624 if (!err)
7625 wdev->ps = state;
ffb9eb3d
KV		 7626 return err;
7627}
7628
7629static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7630{
4c476991 7631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7632 enum nl80211_ps_state ps_state;
7633 struct wireless_dev *wdev;
4c476991 7634 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7635 struct sk_buff *msg;
7636 void *hdr;
7637 int err;
7638
ffb9eb3d
KV		 7639 wdev = dev->ieee80211_ptr;
7640
4c476991
JB		 7641 if (!rdev->ops->set_power_mgmt)
7642 return -EOPNOTSUPP;
ffb9eb3d
KV		 7643
7644 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7645 if (!msg)
7646 return -ENOMEM;
ffb9eb3d 7647
15e47304 7648 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7649 NL80211_CMD_GET_POWER_SAVE);
7650 if (!hdr) {
4c476991 7651 err = -ENOBUFS;
ffb9eb3d
KV		 7652 goto free_msg;
7653 }
7654
7655 if (wdev->ps)
7656 ps_state = NL80211_PS_ENABLED;
7657 else
7658 ps_state = NL80211_PS_DISABLED;
7659
9360ffd1
DM		 7660 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7661 goto nla_put_failure;
ffb9eb3d
KV		 7662
7663 genlmsg_end(msg, hdr);
4c476991 7664 return genlmsg_reply(msg, info);
ffb9eb3d 7665
4c476991 7666 nla_put_failure:
ffb9eb3d 7667 err = -ENOBUFS;
4c476991 7668 free_msg:
ffb9eb3d 7669 nlmsg_free(msg);
ffb9eb3d
KV		 7670 return err;
7671}
7672
d6dc1a38
JO		 7673static struct nla_policy
7674nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7675 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7676 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7677 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7678 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7679 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7680 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7681};
7682
84f10708 7683static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7684 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7685{
7686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7687 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7688 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7689
d9d8b019 7690 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7691 return -EINVAL;
7692
84f10708
TP		 7693 if (!rdev->ops->set_cqm_txe_config)
7694 return -EOPNOTSUPP;
7695
7696 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7697 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7698 return -EOPNOTSUPP;
7699
e35e4d28 7700 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7701}
7702
d6dc1a38
JO		 7703static int nl80211_set_cqm_rssi(struct genl_info *info,
7704 s32 threshold, u32 hysteresis)
7705{
4c476991 7706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7707 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7708 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7709
7710 if (threshold > 0)
7711 return -EINVAL;
7712
1da5fcc8
JB		 7713 /* disabling - hysteresis should also be zero then */
7714 if (threshold == 0)
7715 hysteresis = 0;
d6dc1a38 7716
4c476991
JB		 7717 if (!rdev->ops->set_cqm_rssi_config)
7718 return -EOPNOTSUPP;
d6dc1a38 7719
074ac8df 7720 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7721 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7722 return -EOPNOTSUPP;
d6dc1a38 7723
e35e4d28 7724 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7725}
7726
7727static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7728{
7729 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7730 struct nlattr *cqm;
7731 int err;
7732
7733 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7734 if (!cqm)
7735 return -EINVAL;
d6dc1a38
JO		 7736
7737 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7738 nl80211_attr_cqm_policy);
7739 if (err)
1da5fcc8 7740 return err;
d6dc1a38
JO		 7741
7742 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7743 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 7744 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7745 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 7746
1da5fcc8
JB		 7747 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7748 }
7749
7750 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7751 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7752 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7753 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7754 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7755 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7756
7757 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7758 }
7759
7760 return -EINVAL;
d6dc1a38
JO		 7761}
7762
29cbe68c
JB		 7763static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7764{
7765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7766 struct net_device *dev = info->user_ptr[1];
7767 struct mesh_config cfg;
c80d545d 7768 struct mesh_setup setup;
29cbe68c
JB		 7769 int err;
7770
7771 /* start with default */
7772 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7773 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7774
24bdd9f4 7775 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7776 /* and parse parameters if given */
24bdd9f4 7777 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7778 if (err)
7779 return err;
7780 }
7781
7782 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7783 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7784 return -EINVAL;
7785
c80d545d
JC		 7786 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7787 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7788
4bb62344
CYY		 7789 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7790 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7791 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7792 return -EINVAL;
7793
9bdbf04d
MP		 7794 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7795 setup.beacon_interval =
7796 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7797 if (setup.beacon_interval < 10 ||
7798 setup.beacon_interval > 10000)
7799 return -EINVAL;
7800 }
7801
7802 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7803 setup.dtim_period =
7804 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7805 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7806 return -EINVAL;
7807 }
7808
c80d545d
JC		 7809 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7810 /* parse additional setup parameters if given */
7811 err = nl80211_parse_mesh_setup(info, &setup);
7812 if (err)
7813 return err;
7814 }
7815
d37bb18a
TP		 7816 if (setup.user_mpm)
7817 cfg.auto_open_plinks = false;
7818
cc1d2806 7819 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7820 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7821 if (err)
7822 return err;
cc1d2806
JB		 7823 } else {
7824 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7825 setup.chandef.chan = NULL;
cc1d2806
JB		 7826 }
7827
ffb3cf30
AN		 7828 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7829 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7830 int n_rates =
7831 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7832 struct ieee80211_supported_band *sband;
7833
7834 if (!setup.chandef.chan)
7835 return -EINVAL;
7836
7837 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7838
7839 err = ieee80211_get_ratemask(sband, rates, n_rates,
7840 &setup.basic_rates);
7841 if (err)
7842 return err;
7843 }
7844
c80d545d 7845 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7846}
7847
7848static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7849{
7850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7851 struct net_device *dev = info->user_ptr[1];
7852
7853 return cfg80211_leave_mesh(rdev, dev);
7854}
7855
dfb89c56 7856#ifdef CONFIG_PM
bb92d199
AK		 7857static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7858 struct cfg80211_registered_device *rdev)
7859{
6abb9cb9 7860 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7861 struct nlattr *nl_pats, *nl_pat;
7862 int i, pat_len;
7863
6abb9cb9 7864 if (!wowlan->n_patterns)
bb92d199
AK		 7865 return 0;
7866
7867 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7868 if (!nl_pats)
7869 return -ENOBUFS;
7870
6abb9cb9 7871 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7872 nl_pat = nla_nest_start(msg, i + 1);
7873 if (!nl_pat)
7874 return -ENOBUFS;
6abb9cb9 7875 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 7876 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7877 wowlan->patterns[i].mask) ||
50ac6607
AK		 7878 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
7879 wowlan->patterns[i].pattern) ||
7880 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 7881 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7882 return -ENOBUFS;
7883 nla_nest_end(msg, nl_pat);
7884 }
7885 nla_nest_end(msg, nl_pats);
7886
7887 return 0;
7888}
7889
2a0e047e
JB		 7890static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7891 struct cfg80211_wowlan_tcp *tcp)
7892{
7893 struct nlattr *nl_tcp;
7894
7895 if (!tcp)
7896 return 0;
7897
7898 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7899 if (!nl_tcp)
7900 return -ENOBUFS;
7901
7902 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7903 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7904 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7905 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7906 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7907 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7908 tcp->payload_len, tcp->payload) ||
7909 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7910 tcp->data_interval) ||
7911 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7912 tcp->wake_len, tcp->wake_data) ||
7913 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7914 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7915 return -ENOBUFS;
7916
7917 if (tcp->payload_seq.len &&
7918 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7919 sizeof(tcp->payload_seq), &tcp->payload_seq))
7920 return -ENOBUFS;
7921
7922 if (tcp->payload_tok.len &&
7923 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7924 sizeof(tcp->payload_tok) + tcp->tokens_size,
7925 &tcp->payload_tok))
7926 return -ENOBUFS;
7927
e248ad30
JB		 7928 nla_nest_end(msg, nl_tcp);
7929
2a0e047e
JB		 7930 return 0;
7931}
7932
ff1b6e69
JB		 7933static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7934{
7935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7936 struct sk_buff *msg;
7937 void *hdr;
2a0e047e 7938 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7939
964dc9e2 7940 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 7941 return -EOPNOTSUPP;
7942
6abb9cb9 7943 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7944 /* adjust size to have room for all the data */
6abb9cb9
JB		 7945 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7946 rdev->wiphy.wowlan_config->tcp->payload_len +
7947 rdev->wiphy.wowlan_config->tcp->wake_len +
7948 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7949 }
7950
7951 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7952 if (!msg)
7953 return -ENOMEM;
7954
15e47304 7955 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7956 NL80211_CMD_GET_WOWLAN);
7957 if (!hdr)
7958 goto nla_put_failure;
7959
6abb9cb9 7960 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7961 struct nlattr *nl_wowlan;
7962
7963 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7964 if (!nl_wowlan)
7965 goto nla_put_failure;
7966
6abb9cb9 7967 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7968 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7969 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7970 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7971 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7972 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7973 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7974 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7975 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7976 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7977 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7978 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7979 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7980 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7981 goto nla_put_failure;
2a0e047e 7982
bb92d199
AK		 7983 if (nl80211_send_wowlan_patterns(msg, rdev))
7984 goto nla_put_failure;
2a0e047e 7985
6abb9cb9
JB		 7986 if (nl80211_send_wowlan_tcp(msg,
7987 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7988 goto nla_put_failure;
7989
ff1b6e69
JB		 7990 nla_nest_end(msg, nl_wowlan);
7991 }
7992
7993 genlmsg_end(msg, hdr);
7994 return genlmsg_reply(msg, info);
7995
7996nla_put_failure:
7997 nlmsg_free(msg);
7998 return -ENOBUFS;
7999}
8000
2a0e047e
JB		 8001static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8002 struct nlattr *attr,
8003 struct cfg80211_wowlan *trig)
8004{
8005 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8006 struct cfg80211_wowlan_tcp *cfg;
8007 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8008 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8009 u32 size;
8010 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8011 int err, port;
8012
964dc9e2 8013 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8014 return -EINVAL;
8015
8016 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8017 nla_data(attr), nla_len(attr),
8018 nl80211_wowlan_tcp_policy);
8019 if (err)
8020 return err;
8021
8022 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8023 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8024 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8025 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8026 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8027 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8028 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8029 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8030 return -EINVAL;
8031
8032 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8033 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8034 return -EINVAL;
8035
8036 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8037 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8038 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8039 return -EINVAL;
8040
8041 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8042 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8043 return -EINVAL;
8044
8045 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8046 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8047 return -EINVAL;
8048
8049 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8050 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8051
8052 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8053 tokens_size = tokln - sizeof(*tok);
8054
8055 if (!tok->len || tokens_size % tok->len)
8056 return -EINVAL;
964dc9e2 8057 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8058 return -EINVAL;
964dc9e2 8059 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8060 return -EINVAL;
964dc9e2 8061 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8062 return -EINVAL;
964dc9e2 8063 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8064 return -EINVAL;
8065 if (tok->offset + tok->len > data_size)
8066 return -EINVAL;
8067 }
8068
8069 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8070 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8071 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8072 return -EINVAL;
8073 if (seq->len == 0 || seq->len > 4)
8074 return -EINVAL;
8075 if (seq->len + seq->offset > data_size)
8076 return -EINVAL;
8077 }
8078
8079 size = sizeof(*cfg);
8080 size += data_size;
8081 size += wake_size + wake_mask_size;
8082 size += tokens_size;
8083
8084 cfg = kzalloc(size, GFP_KERNEL);
8085 if (!cfg)
8086 return -ENOMEM;
8087 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8088 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8089 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8090 ETH_ALEN);
8091 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8092 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8093 else
8094 port = 0;
8095#ifdef CONFIG_INET
8096 /* allocate a socket and port for it and use it */
8097 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8098 IPPROTO_TCP, &cfg->sock, 1);
8099 if (err) {
8100 kfree(cfg);
8101 return err;
8102 }
8103 if (inet_csk_get_port(cfg->sock->sk, port)) {
8104 sock_release(cfg->sock);
8105 kfree(cfg);
8106 return -EADDRINUSE;
8107 }
8108 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8109#else
8110 if (!port) {
8111 kfree(cfg);
8112 return -EINVAL;
8113 }
8114 cfg->src_port = port;
8115#endif
8116
8117 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8118 cfg->payload_len = data_size;
8119 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8120 memcpy((void *)cfg->payload,
8121 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8122 data_size);
8123 if (seq)
8124 cfg->payload_seq = *seq;
8125 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8126 cfg->wake_len = wake_size;
8127 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8128 memcpy((void *)cfg->wake_data,
8129 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8130 wake_size);
8131 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8132 data_size + wake_size;
8133 memcpy((void *)cfg->wake_mask,
8134 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8135 wake_mask_size);
8136 if (tok) {
8137 cfg->tokens_size = tokens_size;
8138 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8139 }
8140
8141 trig->tcp = cfg;
8142
8143 return 0;
8144}
8145
ff1b6e69
JB		 8146static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8147{
8148 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8149 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8150 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8151 struct cfg80211_wowlan *ntrig;
964dc9e2 8152 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8153 int err, i;
6abb9cb9 8154 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8155
964dc9e2 8156 if (!wowlan)
ff1b6e69
JB		 8157 return -EOPNOTSUPP;
8158
ae33bd81
JB		 8159 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8160 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8161 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8162 goto set_wakeup;
8163 }
ff1b6e69
JB		 8164
8165 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8166 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8167 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8168 nl80211_wowlan_policy);
8169 if (err)
8170 return err;
8171
8172 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8173 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8174 return -EINVAL;
8175 new_triggers.any = true;
8176 }
8177
8178 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8179 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8180 return -EINVAL;
8181 new_triggers.disconnect = true;
8182 }
8183
8184 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8185 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8186 return -EINVAL;
8187 new_triggers.magic_pkt = true;
8188 }
8189
77dbbb13
JB		 8190 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8191 return -EINVAL;
8192
8193 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8194 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8195 return -EINVAL;
8196 new_triggers.gtk_rekey_failure = true;
8197 }
8198
8199 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8200 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8201 return -EINVAL;
8202 new_triggers.eap_identity_req = true;
8203 }
8204
8205 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8206 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8207 return -EINVAL;
8208 new_triggers.four_way_handshake = true;
8209 }
8210
8211 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8212 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8213 return -EINVAL;
8214 new_triggers.rfkill_release = true;
8215 }
8216
ff1b6e69
JB		 8217 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8218 struct nlattr *pat;
8219 int n_patterns = 0;
bb92d199 8220 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8221 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8222
8223 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8224 rem)
8225 n_patterns++;
8226 if (n_patterns > wowlan->n_patterns)
8227 return -EINVAL;
8228
8229 new_triggers.patterns = kcalloc(n_patterns,
8230 sizeof(new_triggers.patterns[0]),
8231 GFP_KERNEL);
8232 if (!new_triggers.patterns)
8233 return -ENOMEM;
8234
8235 new_triggers.n_patterns = n_patterns;
8236 i = 0;
8237
8238 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8239 rem) {
50ac6607
AK		 8240 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8241 nla_len(pat), NULL);
ff1b6e69 8242 err = -EINVAL;
50ac6607
AK		 8243 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8244 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8245 goto error;
50ac6607 8246 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8247 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8248 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8249 goto error;
8250 if (pat_len > wowlan->pattern_max_len ||
8251 pat_len < wowlan->pattern_min_len)
8252 goto error;
8253
50ac6607 8254 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8255 pkt_offset = 0;
8256 else
8257 pkt_offset = nla_get_u32(
50ac6607 8258 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8259 if (pkt_offset > wowlan->max_pkt_offset)
8260 goto error;
8261 new_triggers.patterns[i].pkt_offset = pkt_offset;
8262
ff1b6e69
JB		 8263 new_triggers.patterns[i].mask =
8264 kmalloc(mask_len + pat_len, GFP_KERNEL);
8265 if (!new_triggers.patterns[i].mask) {
8266 err = -ENOMEM;
8267 goto error;
8268 }
8269 new_triggers.patterns[i].pattern =
8270 new_triggers.patterns[i].mask + mask_len;
8271 memcpy(new_triggers.patterns[i].mask,
50ac6607 8272 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8273 mask_len);
8274 new_triggers.patterns[i].pattern_len = pat_len;
8275 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8276 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8277 pat_len);
8278 i++;
8279 }
8280 }
8281
2a0e047e
JB		 8282 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8283 err = nl80211_parse_wowlan_tcp(
8284 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8285 &new_triggers);
8286 if (err)
8287 goto error;
8288 }
8289
ae33bd81
JB		 8290 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8291 if (!ntrig) {
8292 err = -ENOMEM;
8293 goto error;
ff1b6e69 8294 }
ae33bd81 8295 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8296 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8297
ae33bd81 8298 set_wakeup:
6abb9cb9
JB		 8299 if (rdev->ops->set_wakeup &&
8300 prev_enabled != !!rdev->wiphy.wowlan_config)
8301 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8302
ff1b6e69
JB		 8303 return 0;
8304 error:
8305 for (i = 0; i < new_triggers.n_patterns; i++)
8306 kfree(new_triggers.patterns[i].mask);
8307 kfree(new_triggers.patterns);
2a0e047e
JB		 8308 if (new_triggers.tcp && new_triggers.tcp->sock)
8309 sock_release(new_triggers.tcp->sock);
8310 kfree(new_triggers.tcp);
ff1b6e69
JB		 8311 return err;
8312}
dfb89c56 8313#endif
ff1b6e69 8314
be29b99a
AK		 8315static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8316 struct cfg80211_registered_device *rdev)
8317{
8318 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8319 int i, j, pat_len;
8320 struct cfg80211_coalesce_rules *rule;
8321
8322 if (!rdev->coalesce->n_rules)
8323 return 0;
8324
8325 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8326 if (!nl_rules)
8327 return -ENOBUFS;
8328
8329 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8330 nl_rule = nla_nest_start(msg, i + 1);
8331 if (!nl_rule)
8332 return -ENOBUFS;
8333
8334 rule = &rdev->coalesce->rules[i];
8335 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8336 rule->delay))
8337 return -ENOBUFS;
8338
8339 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8340 rule->condition))
8341 return -ENOBUFS;
8342
8343 nl_pats = nla_nest_start(msg,
8344 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8345 if (!nl_pats)
8346 return -ENOBUFS;
8347
8348 for (j = 0; j < rule->n_patterns; j++) {
8349 nl_pat = nla_nest_start(msg, j + 1);
8350 if (!nl_pat)
8351 return -ENOBUFS;
8352 pat_len = rule->patterns[j].pattern_len;
8353 if (nla_put(msg, NL80211_PKTPAT_MASK,
8354 DIV_ROUND_UP(pat_len, 8),
8355 rule->patterns[j].mask) ||
8356 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8357 rule->patterns[j].pattern) ||
8358 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8359 rule->patterns[j].pkt_offset))
8360 return -ENOBUFS;
8361 nla_nest_end(msg, nl_pat);
8362 }
8363 nla_nest_end(msg, nl_pats);
8364 nla_nest_end(msg, nl_rule);
8365 }
8366 nla_nest_end(msg, nl_rules);
8367
8368 return 0;
8369}
8370
8371static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8372{
8373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8374 struct sk_buff *msg;
8375 void *hdr;
8376
8377 if (!rdev->wiphy.coalesce)
8378 return -EOPNOTSUPP;
8379
8380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8381 if (!msg)
8382 return -ENOMEM;
8383
8384 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8385 NL80211_CMD_GET_COALESCE);
8386 if (!hdr)
8387 goto nla_put_failure;
8388
8389 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8390 goto nla_put_failure;
8391
8392 genlmsg_end(msg, hdr);
8393 return genlmsg_reply(msg, info);
8394
8395nla_put_failure:
8396 nlmsg_free(msg);
8397 return -ENOBUFS;
8398}
8399
8400void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8401{
8402 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8403 int i, j;
8404 struct cfg80211_coalesce_rules *rule;
8405
8406 if (!coalesce)
8407 return;
8408
8409 for (i = 0; i < coalesce->n_rules; i++) {
8410 rule = &coalesce->rules[i];
8411 for (j = 0; j < rule->n_patterns; j++)
8412 kfree(rule->patterns[j].mask);
8413 kfree(rule->patterns);
8414 }
8415 kfree(coalesce->rules);
8416 kfree(coalesce);
8417 rdev->coalesce = NULL;
8418}
8419
8420static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8421 struct nlattr *rule,
8422 struct cfg80211_coalesce_rules *new_rule)
8423{
8424 int err, i;
8425 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8426 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8427 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8428 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8429
8430 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8431 nla_len(rule), nl80211_coalesce_policy);
8432 if (err)
8433 return err;
8434
8435 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8436 new_rule->delay =
8437 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8438 if (new_rule->delay > coalesce->max_delay)
8439 return -EINVAL;
8440
8441 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8442 new_rule->condition =
8443 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8444 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8445 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8446 return -EINVAL;
8447
8448 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8449 return -EINVAL;
8450
8451 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8452 rem)
8453 n_patterns++;
8454 if (n_patterns > coalesce->n_patterns)
8455 return -EINVAL;
8456
8457 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8458 GFP_KERNEL);
8459 if (!new_rule->patterns)
8460 return -ENOMEM;
8461
8462 new_rule->n_patterns = n_patterns;
8463 i = 0;
8464
8465 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8466 rem) {
8467 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8468 nla_len(pat), NULL);
8469 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8470 !pat_tb[NL80211_PKTPAT_PATTERN])
8471 return -EINVAL;
8472 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8473 mask_len = DIV_ROUND_UP(pat_len, 8);
8474 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8475 return -EINVAL;
8476 if (pat_len > coalesce->pattern_max_len ||
8477 pat_len < coalesce->pattern_min_len)
8478 return -EINVAL;
8479
8480 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8481 pkt_offset = 0;
8482 else
8483 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8484 if (pkt_offset > coalesce->max_pkt_offset)
8485 return -EINVAL;
8486 new_rule->patterns[i].pkt_offset = pkt_offset;
8487
8488 new_rule->patterns[i].mask =
8489 kmalloc(mask_len + pat_len, GFP_KERNEL);
8490 if (!new_rule->patterns[i].mask)
8491 return -ENOMEM;
8492 new_rule->patterns[i].pattern =
8493 new_rule->patterns[i].mask + mask_len;
8494 memcpy(new_rule->patterns[i].mask,
8495 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8496 new_rule->patterns[i].pattern_len = pat_len;
8497 memcpy(new_rule->patterns[i].pattern,
8498 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8499 i++;
8500 }
8501
8502 return 0;
8503}
8504
8505static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8506{
8507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8508 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8509 struct cfg80211_coalesce new_coalesce = {};
8510 struct cfg80211_coalesce *n_coalesce;
8511 int err, rem_rule, n_rules = 0, i, j;
8512 struct nlattr *rule;
8513 struct cfg80211_coalesce_rules *tmp_rule;
8514
8515 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8516 return -EOPNOTSUPP;
8517
8518 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8519 cfg80211_rdev_free_coalesce(rdev);
8520 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8521 return 0;
8522 }
8523
8524 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8525 rem_rule)
8526 n_rules++;
8527 if (n_rules > coalesce->n_rules)
8528 return -EINVAL;
8529
8530 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8531 GFP_KERNEL);
8532 if (!new_coalesce.rules)
8533 return -ENOMEM;
8534
8535 new_coalesce.n_rules = n_rules;
8536 i = 0;
8537
8538 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8539 rem_rule) {
8540 err = nl80211_parse_coalesce_rule(rdev, rule,
8541 &new_coalesce.rules[i]);
8542 if (err)
8543 goto error;
8544
8545 i++;
8546 }
8547
8548 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8549 if (err)
8550 goto error;
8551
8552 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8553 if (!n_coalesce) {
8554 err = -ENOMEM;
8555 goto error;
8556 }
8557 cfg80211_rdev_free_coalesce(rdev);
8558 rdev->coalesce = n_coalesce;
8559
8560 return 0;
8561error:
8562 for (i = 0; i < new_coalesce.n_rules; i++) {
8563 tmp_rule = &new_coalesce.rules[i];
8564 for (j = 0; j < tmp_rule->n_patterns; j++)
8565 kfree(tmp_rule->patterns[j].mask);
8566 kfree(tmp_rule->patterns);
8567 }
8568 kfree(new_coalesce.rules);
8569
8570 return err;
8571}
8572
e5497d76
JB		 8573static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8574{
8575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8576 struct net_device *dev = info->user_ptr[1];
8577 struct wireless_dev *wdev = dev->ieee80211_ptr;
8578 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8579 struct cfg80211_gtk_rekey_data rekey_data;
8580 int err;
8581
8582 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8583 return -EINVAL;
8584
8585 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8586 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8587 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8588 nl80211_rekey_policy);
8589 if (err)
8590 return err;
8591
8592 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8593 return -ERANGE;
8594 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8595 return -ERANGE;
8596 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8597 return -ERANGE;
8598
8599 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8600 NL80211_KEK_LEN);
8601 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8602 NL80211_KCK_LEN);
8603 memcpy(rekey_data.replay_ctr,
8604 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8605 NL80211_REPLAY_CTR_LEN);
8606
8607 wdev_lock(wdev);
8608 if (!wdev->current_bss) {
8609 err = -ENOTCONN;
8610 goto out;
8611 }
8612
8613 if (!rdev->ops->set_rekey_data) {
8614 err = -EOPNOTSUPP;
8615 goto out;
8616 }
8617
e35e4d28 8618 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8619 out:
8620 wdev_unlock(wdev);
8621 return err;
8622}
8623
28946da7
JB		 8624static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8625 struct genl_info *info)
8626{
8627 struct net_device *dev = info->user_ptr[1];
8628 struct wireless_dev *wdev = dev->ieee80211_ptr;
8629
8630 if (wdev->iftype != NL80211_IFTYPE_AP &&
8631 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8632 return -EINVAL;
8633
15e47304 8634 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8635 return -EBUSY;
8636
15e47304 8637 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8638 return 0;
8639}
8640
7f6cf311
JB		 8641static int nl80211_probe_client(struct sk_buff *skb,
8642 struct genl_info *info)
8643{
8644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8645 struct net_device *dev = info->user_ptr[1];
8646 struct wireless_dev *wdev = dev->ieee80211_ptr;
8647 struct sk_buff *msg;
8648 void *hdr;
8649 const u8 *addr;
8650 u64 cookie;
8651 int err;
8652
8653 if (wdev->iftype != NL80211_IFTYPE_AP &&
8654 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8655 return -EOPNOTSUPP;
8656
8657 if (!info->attrs[NL80211_ATTR_MAC])
8658 return -EINVAL;
8659
8660 if (!rdev->ops->probe_client)
8661 return -EOPNOTSUPP;
8662
8663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8664 if (!msg)
8665 return -ENOMEM;
8666
15e47304 8667 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8668 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8669 if (!hdr) {
8670 err = -ENOBUFS;
7f6cf311
JB		 8671 goto free_msg;
8672 }
8673
8674 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8675
e35e4d28 8676 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8677 if (err)
8678 goto free_msg;
8679
9360ffd1
DM		 8680 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8681 goto nla_put_failure;
7f6cf311
JB		 8682
8683 genlmsg_end(msg, hdr);
8684
8685 return genlmsg_reply(msg, info);
8686
8687 nla_put_failure:
8688 err = -ENOBUFS;
8689 free_msg:
8690 nlmsg_free(msg);
8691 return err;
8692}
8693
5e760230
JB		 8694static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8695{
8696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8697 struct cfg80211_beacon_registration *reg, *nreg;
8698 int rv;
5e760230
JB		 8699
8700 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8701 return -EOPNOTSUPP;
8702
37c73b5f
BG		 8703 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8704 if (!nreg)
8705 return -ENOMEM;
8706
8707 /* First, check if already registered. */
8708 spin_lock_bh(&rdev->beacon_registrations_lock);
8709 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8710 if (reg->nlportid == info->snd_portid) {
8711 rv = -EALREADY;
8712 goto out_err;
8713 }
8714 }
8715 /* Add it to the list */
8716 nreg->nlportid = info->snd_portid;
8717 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8718
37c73b5f 8719 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8720
8721 return 0;
37c73b5f
BG		 8722out_err:
8723 spin_unlock_bh(&rdev->beacon_registrations_lock);
8724 kfree(nreg);
8725 return rv;
5e760230
JB		 8726}
8727
98104fde
JB		 8728static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8729{
8730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8731 struct wireless_dev *wdev = info->user_ptr[1];
8732 int err;
8733
8734 if (!rdev->ops->start_p2p_device)
8735 return -EOPNOTSUPP;
8736
8737 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8738 return -EOPNOTSUPP;
8739
8740 if (wdev->p2p_started)
8741 return 0;
8742
98104fde 8743 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8744 if (err)
8745 return err;
8746
eeb126e9 8747 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8748 if (err)
8749 return err;
8750
8751 wdev->p2p_started = true;
98104fde 8752 rdev->opencount++;
98104fde
JB		 8753
8754 return 0;
8755}
8756
8757static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8758{
8759 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8760 struct wireless_dev *wdev = info->user_ptr[1];
8761
8762 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8763 return -EOPNOTSUPP;
8764
8765 if (!rdev->ops->stop_p2p_device)
8766 return -EOPNOTSUPP;
8767
f9f47529 8768 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8769
8770 return 0;
8771}
8772
3713b4e3
JB		 8773static int nl80211_get_protocol_features(struct sk_buff *skb,
8774 struct genl_info *info)
8775{
8776 void *hdr;
8777 struct sk_buff *msg;
8778
8779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8780 if (!msg)
8781 return -ENOMEM;
8782
8783 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8784 NL80211_CMD_GET_PROTOCOL_FEATURES);
8785 if (!hdr)
8786 goto nla_put_failure;
8787
8788 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8789 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8790 goto nla_put_failure;
8791
8792 genlmsg_end(msg, hdr);
8793 return genlmsg_reply(msg, info);
8794
8795 nla_put_failure:
8796 kfree_skb(msg);
8797 return -ENOBUFS;
8798}
8799
355199e0
JM		 8800static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8801{
8802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8803 struct cfg80211_update_ft_ies_params ft_params;
8804 struct net_device *dev = info->user_ptr[1];
8805
8806 if (!rdev->ops->update_ft_ies)
8807 return -EOPNOTSUPP;
8808
8809 if (!info->attrs[NL80211_ATTR_MDID] ||
8810 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8811 return -EINVAL;
8812
8813 memset(&ft_params, 0, sizeof(ft_params));
8814 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8815 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8816 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8817
8818 return rdev_update_ft_ies(rdev, dev, &ft_params);
8819}
8820
5de17984
AS		 8821static int nl80211_crit_protocol_start(struct sk_buff *skb,
8822 struct genl_info *info)
8823{
8824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8825 struct wireless_dev *wdev = info->user_ptr[1];
8826 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8827 u16 duration;
8828 int ret;
8829
8830 if (!rdev->ops->crit_proto_start)
8831 return -EOPNOTSUPP;
8832
8833 if (WARN_ON(!rdev->ops->crit_proto_stop))
8834 return -EINVAL;
8835
8836 if (rdev->crit_proto_nlportid)
8837 return -EBUSY;
8838
8839 /* determine protocol if provided */
8840 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8841 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8842
8843 if (proto >= NUM_NL80211_CRIT_PROTO)
8844 return -EINVAL;
8845
8846 /* timeout must be provided */
8847 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8848 return -EINVAL;
8849
8850 duration =
8851 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8852
8853 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8854 return -ERANGE;
8855
8856 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8857 if (!ret)
8858 rdev->crit_proto_nlportid = info->snd_portid;
8859
8860 return ret;
8861}
8862
8863static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8864 struct genl_info *info)
8865{
8866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8867 struct wireless_dev *wdev = info->user_ptr[1];
8868
8869 if (!rdev->ops->crit_proto_stop)
8870 return -EOPNOTSUPP;
8871
8872 if (rdev->crit_proto_nlportid) {
8873 rdev->crit_proto_nlportid = 0;
8874 rdev_crit_proto_stop(rdev, wdev);
8875 }
8876 return 0;
8877}
8878
ad7e718c
JB		 8879static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
8880{
8881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8882 struct wireless_dev *wdev =
8883 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8884 int i, err;
8885 u32 vid, subcmd;
8886
8887 if (!rdev->wiphy.vendor_commands)
8888 return -EOPNOTSUPP;
8889
8890 if (IS_ERR(wdev)) {
8891 err = PTR_ERR(wdev);
8892 if (err != -EINVAL)
8893 return err;
8894 wdev = NULL;
8895 } else if (wdev->wiphy != &rdev->wiphy) {
8896 return -EINVAL;
8897 }
8898
8899 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
8900 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
8901 return -EINVAL;
8902
8903 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
8904 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
8905 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
8906 const struct wiphy_vendor_command *vcmd;
8907 void *data = NULL;
8908 int len = 0;
8909
8910 vcmd = &rdev->wiphy.vendor_commands[i];
8911
8912 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
8913 continue;
8914
8915 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
8916 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
8917 if (!wdev)
8918 return -EINVAL;
8919 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
8920 !wdev->netdev)
8921 return -EINVAL;
8922
8923 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
8924 if (wdev->netdev &&
8925 !netif_running(wdev->netdev))
8926 return -ENETDOWN;
8927 if (!wdev->netdev && !wdev->p2p_started)
8928 return -ENETDOWN;
8929 }
8930 } else {
8931 wdev = NULL;
8932 }
8933
8934 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
8935 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
8936 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
8937 }
8938
8939 rdev->cur_cmd_info = info;
8940 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
8941 data, len);
8942 rdev->cur_cmd_info = NULL;
8943 return err;
8944 }
8945
8946 return -EOPNOTSUPP;
8947}
8948
8949struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
8950 enum nl80211_commands cmd,
8951 enum nl80211_attrs attr,
8952 int approxlen)
8953{
8954 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8955
8956 if (WARN_ON(!rdev->cur_cmd_info))
8957 return NULL;
8958
8959 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
8960 rdev->cur_cmd_info->snd_portid,
8961 rdev->cur_cmd_info->snd_seq,
8962 cmd, attr, GFP_KERNEL);
8963}
8964EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
8965
8966int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
8967{
8968 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8969 void *hdr = ((void **)skb->cb)[1];
8970 struct nlattr *data = ((void **)skb->cb)[2];
8971
8972 if (WARN_ON(!rdev->cur_cmd_info)) {
8973 kfree_skb(skb);
8974 return -EINVAL;
8975 }
8976
8977 nla_nest_end(skb, data);
8978 genlmsg_end(skb, hdr);
8979 return genlmsg_reply(skb, rdev->cur_cmd_info);
8980}
8981EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
8982
8983
4c476991
JB		 8984#define NL80211_FLAG_NEED_WIPHY 0x01
8985#define NL80211_FLAG_NEED_NETDEV 0x02
8986#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8987#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8988#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8989 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8990#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8991/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8992#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8993 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 8994
f84f771d 8995static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 8996 struct genl_info *info)
8997{
8998 struct cfg80211_registered_device *rdev;
89a54e48 8999 struct wireless_dev *wdev;
4c476991 9000 struct net_device *dev;
4c476991
JB		 9001 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9002
9003 if (rtnl)
9004 rtnl_lock();
9005
9006 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9007 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9008 if (IS_ERR(rdev)) {
9009 if (rtnl)
9010 rtnl_unlock();
9011 return PTR_ERR(rdev);
9012 }
9013 info->user_ptr[0] = rdev;
1bf614ef
JB		 9014 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9015 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9016 ASSERT_RTNL();
9017
89a54e48
JB		 9018 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9019 info->attrs);
9020 if (IS_ERR(wdev)) {
4c476991
JB		 9021 if (rtnl)
9022 rtnl_unlock();
89a54e48 9023 return PTR_ERR(wdev);
4c476991 9024 }
89a54e48 9025
89a54e48
JB		 9026 dev = wdev->netdev;
9027 rdev = wiphy_to_dev(wdev->wiphy);
9028
1bf614ef
JB		 9029 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9030 if (!dev) {
1bf614ef
JB		 9031 if (rtnl)
9032 rtnl_unlock();
9033 return -EINVAL;
9034 }
9035
9036 info->user_ptr[1] = dev;
9037 } else {
9038 info->user_ptr[1] = wdev;
41265714 9039 }
1bf614ef
JB		 9040
9041 if (dev) {
9042 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9043 !netif_running(dev)) {
1bf614ef
JB		 9044 if (rtnl)
9045 rtnl_unlock();
9046 return -ENETDOWN;
9047 }
9048
9049 dev_hold(dev);
98104fde
JB		 9050 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9051 if (!wdev->p2p_started) {
98104fde
JB		 9052 if (rtnl)
9053 rtnl_unlock();
9054 return -ENETDOWN;
9055 }
41265714 9056 }
89a54e48 9057
4c476991 9058 info->user_ptr[0] = rdev;
4c476991
JB		 9059 }
9060
9061 return 0;
9062}
9063
f84f771d 9064static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9065 struct genl_info *info)
9066{
1bf614ef
JB		 9067 if (info->user_ptr[1]) {
9068 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9069 struct wireless_dev *wdev = info->user_ptr[1];
9070
9071 if (wdev->netdev)
9072 dev_put(wdev->netdev);
9073 } else {
9074 dev_put(info->user_ptr[1]);
9075 }
9076 }
4c476991
JB		 9077 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9078 rtnl_unlock();
9079}
9080
4534de83 9081static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9082 {
9083 .cmd = NL80211_CMD_GET_WIPHY,
9084 .doit = nl80211_get_wiphy,
9085 .dumpit = nl80211_dump_wiphy,
86e8cf98 9086 .done = nl80211_dump_wiphy_done,
55682965
JB		 9087 .policy = nl80211_policy,
9088 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9089 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9090 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9091 },
9092 {
9093 .cmd = NL80211_CMD_SET_WIPHY,
9094 .doit = nl80211_set_wiphy,
9095 .policy = nl80211_policy,
9096 .flags = GENL_ADMIN_PERM,
4c476991 9097 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9098 },
9099 {
9100 .cmd = NL80211_CMD_GET_INTERFACE,
9101 .doit = nl80211_get_interface,
9102 .dumpit = nl80211_dump_interface,
9103 .policy = nl80211_policy,
9104 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9105 .internal_flags = NL80211_FLAG_NEED_WDEV |
9106 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9107 },
9108 {
9109 .cmd = NL80211_CMD_SET_INTERFACE,
9110 .doit = nl80211_set_interface,
9111 .policy = nl80211_policy,
9112 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9113 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9114 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9115 },
9116 {
9117 .cmd = NL80211_CMD_NEW_INTERFACE,
9118 .doit = nl80211_new_interface,
9119 .policy = nl80211_policy,
9120 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9121 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9122 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9123 },
9124 {
9125 .cmd = NL80211_CMD_DEL_INTERFACE,
9126 .doit = nl80211_del_interface,
9127 .policy = nl80211_policy,
41ade00f 9128 .flags = GENL_ADMIN_PERM,
84efbb84 9129 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9130 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9131 },
9132 {
9133 .cmd = NL80211_CMD_GET_KEY,
9134 .doit = nl80211_get_key,
9135 .policy = nl80211_policy,
9136 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9137 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9138 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9139 },
9140 {
9141 .cmd = NL80211_CMD_SET_KEY,
9142 .doit = nl80211_set_key,
9143 .policy = nl80211_policy,
9144 .flags = GENL_ADMIN_PERM,
41265714 9145 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9146 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9147 },
9148 {
9149 .cmd = NL80211_CMD_NEW_KEY,
9150 .doit = nl80211_new_key,
9151 .policy = nl80211_policy,
9152 .flags = GENL_ADMIN_PERM,
41265714 9153 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9154 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9155 },
9156 {
9157 .cmd = NL80211_CMD_DEL_KEY,
9158 .doit = nl80211_del_key,
9159 .policy = nl80211_policy,
55682965 9160 .flags = GENL_ADMIN_PERM,
41265714 9161 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9162 NL80211_FLAG_NEED_RTNL,
55682965 9163 },
ed1b6cc7
JB		 9164 {
9165 .cmd = NL80211_CMD_SET_BEACON,
9166 .policy = nl80211_policy,
9167 .flags = GENL_ADMIN_PERM,
8860020e 9168 .doit = nl80211_set_beacon,
2b5f8b0b 9169 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9170 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9171 },
9172 {
8860020e 9173 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9174 .policy = nl80211_policy,
9175 .flags = GENL_ADMIN_PERM,
8860020e 9176 .doit = nl80211_start_ap,
2b5f8b0b 9177 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9178 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9179 },
9180 {
8860020e 9181 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9182 .policy = nl80211_policy,
9183 .flags = GENL_ADMIN_PERM,
8860020e 9184 .doit = nl80211_stop_ap,
2b5f8b0b 9185 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9186 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9187 },
5727ef1b
JB		 9188 {
9189 .cmd = NL80211_CMD_GET_STATION,
9190 .doit = nl80211_get_station,
2ec600d6 9191 .dumpit = nl80211_dump_station,
5727ef1b 9192 .policy = nl80211_policy,
4c476991
JB		 9193 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9194 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9195 },
9196 {
9197 .cmd = NL80211_CMD_SET_STATION,
9198 .doit = nl80211_set_station,
9199 .policy = nl80211_policy,
9200 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9201 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9202 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9203 },
9204 {
9205 .cmd = NL80211_CMD_NEW_STATION,
9206 .doit = nl80211_new_station,
9207 .policy = nl80211_policy,
9208 .flags = GENL_ADMIN_PERM,
41265714 9209 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9210 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9211 },
9212 {
9213 .cmd = NL80211_CMD_DEL_STATION,
9214 .doit = nl80211_del_station,
9215 .policy = nl80211_policy,
2ec600d6 9216 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9217 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9218 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9219 },
9220 {
9221 .cmd = NL80211_CMD_GET_MPATH,
9222 .doit = nl80211_get_mpath,
9223 .dumpit = nl80211_dump_mpath,
9224 .policy = nl80211_policy,
9225 .flags = GENL_ADMIN_PERM,
41265714 9226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9227 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9228 },
9229 {
9230 .cmd = NL80211_CMD_SET_MPATH,
9231 .doit = nl80211_set_mpath,
9232 .policy = nl80211_policy,
9233 .flags = GENL_ADMIN_PERM,
41265714 9234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9235 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9236 },
9237 {
9238 .cmd = NL80211_CMD_NEW_MPATH,
9239 .doit = nl80211_new_mpath,
9240 .policy = nl80211_policy,
9241 .flags = GENL_ADMIN_PERM,
41265714 9242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9243 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9244 },
9245 {
9246 .cmd = NL80211_CMD_DEL_MPATH,
9247 .doit = nl80211_del_mpath,
9248 .policy = nl80211_policy,
9f1ba906 9249 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9251 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9252 },
9253 {
9254 .cmd = NL80211_CMD_SET_BSS,
9255 .doit = nl80211_set_bss,
9256 .policy = nl80211_policy,
b2e1b302 9257 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9258 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9259 NL80211_FLAG_NEED_RTNL,
b2e1b302 9260 },
f130347c
LR		 9261 {
9262 .cmd = NL80211_CMD_GET_REG,
9263 .doit = nl80211_get_reg,
9264 .policy = nl80211_policy,
5fe231e8 9265 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9266 /* can be retrieved by unprivileged users */
9267 },
b2e1b302
LR		 9268 {
9269 .cmd = NL80211_CMD_SET_REG,
9270 .doit = nl80211_set_reg,
9271 .policy = nl80211_policy,
9272 .flags = GENL_ADMIN_PERM,
5fe231e8 9273 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9274 },
9275 {
9276 .cmd = NL80211_CMD_REQ_SET_REG,
9277 .doit = nl80211_req_set_reg,
9278 .policy = nl80211_policy,
93da9cc1 9279 .flags = GENL_ADMIN_PERM,
9280 },
9281 {
24bdd9f4
JC		 9282 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9283 .doit = nl80211_get_mesh_config,
93da9cc1 9284 .policy = nl80211_policy,
9285 /* can be retrieved by unprivileged users */
2b5f8b0b 9286 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9287 NL80211_FLAG_NEED_RTNL,
93da9cc1 9288 },
9289 {
24bdd9f4
JC		 9290 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9291 .doit = nl80211_update_mesh_config,
93da9cc1 9292 .policy = nl80211_policy,
9aed3cc1 9293 .flags = GENL_ADMIN_PERM,
29cbe68c 9294 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9295 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9296 },
2a519311
JB		 9297 {
9298 .cmd = NL80211_CMD_TRIGGER_SCAN,
9299 .doit = nl80211_trigger_scan,
9300 .policy = nl80211_policy,
9301 .flags = GENL_ADMIN_PERM,
fd014284 9302 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9303 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9304 },
9305 {
9306 .cmd = NL80211_CMD_GET_SCAN,
9307 .policy = nl80211_policy,
9308 .dumpit = nl80211_dump_scan,
9309 },
807f8a8c
LC		 9310 {
9311 .cmd = NL80211_CMD_START_SCHED_SCAN,
9312 .doit = nl80211_start_sched_scan,
9313 .policy = nl80211_policy,
9314 .flags = GENL_ADMIN_PERM,
9315 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9316 NL80211_FLAG_NEED_RTNL,
9317 },
9318 {
9319 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9320 .doit = nl80211_stop_sched_scan,
9321 .policy = nl80211_policy,
9322 .flags = GENL_ADMIN_PERM,
9323 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9324 NL80211_FLAG_NEED_RTNL,
9325 },
636a5d36
JM		 9326 {
9327 .cmd = NL80211_CMD_AUTHENTICATE,
9328 .doit = nl80211_authenticate,
9329 .policy = nl80211_policy,
9330 .flags = GENL_ADMIN_PERM,
41265714 9331 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9332 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9333 },
9334 {
9335 .cmd = NL80211_CMD_ASSOCIATE,
9336 .doit = nl80211_associate,
9337 .policy = nl80211_policy,
9338 .flags = GENL_ADMIN_PERM,
41265714 9339 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9340 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9341 },
9342 {
9343 .cmd = NL80211_CMD_DEAUTHENTICATE,
9344 .doit = nl80211_deauthenticate,
9345 .policy = nl80211_policy,
9346 .flags = GENL_ADMIN_PERM,
41265714 9347 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9348 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9349 },
9350 {
9351 .cmd = NL80211_CMD_DISASSOCIATE,
9352 .doit = nl80211_disassociate,
9353 .policy = nl80211_policy,
9354 .flags = GENL_ADMIN_PERM,
41265714 9355 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9356 NL80211_FLAG_NEED_RTNL,
636a5d36 9357 },
04a773ad
JB		 9358 {
9359 .cmd = NL80211_CMD_JOIN_IBSS,
9360 .doit = nl80211_join_ibss,
9361 .policy = nl80211_policy,
9362 .flags = GENL_ADMIN_PERM,
41265714 9363 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9364 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9365 },
9366 {
9367 .cmd = NL80211_CMD_LEAVE_IBSS,
9368 .doit = nl80211_leave_ibss,
9369 .policy = nl80211_policy,
9370 .flags = GENL_ADMIN_PERM,
41265714 9371 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9372 NL80211_FLAG_NEED_RTNL,
04a773ad 9373 },
aff89a9b
JB		 9374#ifdef CONFIG_NL80211_TESTMODE
9375 {
9376 .cmd = NL80211_CMD_TESTMODE,
9377 .doit = nl80211_testmode_do,
71063f0e 9378 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9379 .policy = nl80211_policy,
9380 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9381 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9382 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9383 },
9384#endif
b23aa676
SO		 9385 {
9386 .cmd = NL80211_CMD_CONNECT,
9387 .doit = nl80211_connect,
9388 .policy = nl80211_policy,
9389 .flags = GENL_ADMIN_PERM,
41265714 9390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9391 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9392 },
9393 {
9394 .cmd = NL80211_CMD_DISCONNECT,
9395 .doit = nl80211_disconnect,
9396 .policy = nl80211_policy,
9397 .flags = GENL_ADMIN_PERM,
41265714 9398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9399 NL80211_FLAG_NEED_RTNL,
b23aa676 9400 },
463d0183
JB		 9401 {
9402 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9403 .doit = nl80211_wiphy_netns,
9404 .policy = nl80211_policy,
9405 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9406 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9407 NL80211_FLAG_NEED_RTNL,
463d0183 9408 },
61fa713c
HS		 9409 {
9410 .cmd = NL80211_CMD_GET_SURVEY,
9411 .policy = nl80211_policy,
9412 .dumpit = nl80211_dump_survey,
9413 },
67fbb16b
SO		 9414 {
9415 .cmd = NL80211_CMD_SET_PMKSA,
9416 .doit = nl80211_setdel_pmksa,
9417 .policy = nl80211_policy,
9418 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9419 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9420 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9421 },
9422 {
9423 .cmd = NL80211_CMD_DEL_PMKSA,
9424 .doit = nl80211_setdel_pmksa,
9425 .policy = nl80211_policy,
9426 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9427 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9428 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9429 },
9430 {
9431 .cmd = NL80211_CMD_FLUSH_PMKSA,
9432 .doit = nl80211_flush_pmksa,
9433 .policy = nl80211_policy,
9434 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9435 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9436 NL80211_FLAG_NEED_RTNL,
67fbb16b 9437 },
9588bbd5
JM		 9438 {
9439 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9440 .doit = nl80211_remain_on_channel,
9441 .policy = nl80211_policy,
9442 .flags = GENL_ADMIN_PERM,
71bbc994 9443 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9444 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9445 },
9446 {
9447 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9448 .doit = nl80211_cancel_remain_on_channel,
9449 .policy = nl80211_policy,
9450 .flags = GENL_ADMIN_PERM,
71bbc994 9451 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9452 NL80211_FLAG_NEED_RTNL,
9588bbd5 9453 },
13ae75b1
JM		 9454 {
9455 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9456 .doit = nl80211_set_tx_bitrate_mask,
9457 .policy = nl80211_policy,
9458 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9459 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9460 NL80211_FLAG_NEED_RTNL,
13ae75b1 9461 },
026331c4 9462 {
2e161f78
JB		 9463 .cmd = NL80211_CMD_REGISTER_FRAME,
9464 .doit = nl80211_register_mgmt,
026331c4
JM		 9465 .policy = nl80211_policy,
9466 .flags = GENL_ADMIN_PERM,
71bbc994 9467 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9468 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9469 },
9470 {
2e161f78
JB		 9471 .cmd = NL80211_CMD_FRAME,
9472 .doit = nl80211_tx_mgmt,
026331c4 9473 .policy = nl80211_policy,
f7ca38df 9474 .flags = GENL_ADMIN_PERM,
71bbc994 9475 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9476 NL80211_FLAG_NEED_RTNL,
9477 },
9478 {
9479 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9480 .doit = nl80211_tx_mgmt_cancel_wait,
9481 .policy = nl80211_policy,
026331c4 9482 .flags = GENL_ADMIN_PERM,
71bbc994 9483 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9484 NL80211_FLAG_NEED_RTNL,
026331c4 9485 },
ffb9eb3d
KV		 9486 {
9487 .cmd = NL80211_CMD_SET_POWER_SAVE,
9488 .doit = nl80211_set_power_save,
9489 .policy = nl80211_policy,
9490 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9491 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9492 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9493 },
9494 {
9495 .cmd = NL80211_CMD_GET_POWER_SAVE,
9496 .doit = nl80211_get_power_save,
9497 .policy = nl80211_policy,
9498 /* can be retrieved by unprivileged users */
4c476991
JB		 9499 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9500 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9501 },
d6dc1a38
JO		 9502 {
9503 .cmd = NL80211_CMD_SET_CQM,
9504 .doit = nl80211_set_cqm,
9505 .policy = nl80211_policy,
9506 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9507 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9508 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9509 },
f444de05
JB		 9510 {
9511 .cmd = NL80211_CMD_SET_CHANNEL,
9512 .doit = nl80211_set_channel,
9513 .policy = nl80211_policy,
9514 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9515 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9516 NL80211_FLAG_NEED_RTNL,
f444de05 9517 },
e8347eba
BJ		 9518 {
9519 .cmd = NL80211_CMD_SET_WDS_PEER,
9520 .doit = nl80211_set_wds_peer,
9521 .policy = nl80211_policy,
9522 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9523 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9524 NL80211_FLAG_NEED_RTNL,
e8347eba 9525 },
29cbe68c
JB		 9526 {
9527 .cmd = NL80211_CMD_JOIN_MESH,
9528 .doit = nl80211_join_mesh,
9529 .policy = nl80211_policy,
9530 .flags = GENL_ADMIN_PERM,
9531 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9532 NL80211_FLAG_NEED_RTNL,
9533 },
9534 {
9535 .cmd = NL80211_CMD_LEAVE_MESH,
9536 .doit = nl80211_leave_mesh,
9537 .policy = nl80211_policy,
9538 .flags = GENL_ADMIN_PERM,
9539 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9540 NL80211_FLAG_NEED_RTNL,
9541 },
dfb89c56 9542#ifdef CONFIG_PM
ff1b6e69
JB		 9543 {
9544 .cmd = NL80211_CMD_GET_WOWLAN,
9545 .doit = nl80211_get_wowlan,
9546 .policy = nl80211_policy,
9547 /* can be retrieved by unprivileged users */
9548 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9549 NL80211_FLAG_NEED_RTNL,
9550 },
9551 {
9552 .cmd = NL80211_CMD_SET_WOWLAN,
9553 .doit = nl80211_set_wowlan,
9554 .policy = nl80211_policy,
9555 .flags = GENL_ADMIN_PERM,
9556 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9557 NL80211_FLAG_NEED_RTNL,
9558 },
dfb89c56 9559#endif
e5497d76
JB		 9560 {
9561 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9562 .doit = nl80211_set_rekey_data,
9563 .policy = nl80211_policy,
9564 .flags = GENL_ADMIN_PERM,
9565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9566 NL80211_FLAG_NEED_RTNL,
9567 },
109086ce
AN		 9568 {
9569 .cmd = NL80211_CMD_TDLS_MGMT,
9570 .doit = nl80211_tdls_mgmt,
9571 .policy = nl80211_policy,
9572 .flags = GENL_ADMIN_PERM,
9573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9574 NL80211_FLAG_NEED_RTNL,
9575 },
9576 {
9577 .cmd = NL80211_CMD_TDLS_OPER,
9578 .doit = nl80211_tdls_oper,
9579 .policy = nl80211_policy,
9580 .flags = GENL_ADMIN_PERM,
9581 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9582 NL80211_FLAG_NEED_RTNL,
9583 },
28946da7
JB		 9584 {
9585 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9586 .doit = nl80211_register_unexpected_frame,
9587 .policy = nl80211_policy,
9588 .flags = GENL_ADMIN_PERM,
9589 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9590 NL80211_FLAG_NEED_RTNL,
9591 },
7f6cf311
JB		 9592 {
9593 .cmd = NL80211_CMD_PROBE_CLIENT,
9594 .doit = nl80211_probe_client,
9595 .policy = nl80211_policy,
9596 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9597 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9598 NL80211_FLAG_NEED_RTNL,
9599 },
5e760230
JB		 9600 {
9601 .cmd = NL80211_CMD_REGISTER_BEACONS,
9602 .doit = nl80211_register_beacons,
9603 .policy = nl80211_policy,
9604 .flags = GENL_ADMIN_PERM,
9605 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9606 NL80211_FLAG_NEED_RTNL,
9607 },
1d9d9213
SW		 9608 {
9609 .cmd = NL80211_CMD_SET_NOACK_MAP,
9610 .doit = nl80211_set_noack_map,
9611 .policy = nl80211_policy,
9612 .flags = GENL_ADMIN_PERM,
9613 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9614 NL80211_FLAG_NEED_RTNL,
9615 },
98104fde
JB		 9616 {
9617 .cmd = NL80211_CMD_START_P2P_DEVICE,
9618 .doit = nl80211_start_p2p_device,
9619 .policy = nl80211_policy,
9620 .flags = GENL_ADMIN_PERM,
9621 .internal_flags = NL80211_FLAG_NEED_WDEV |
9622 NL80211_FLAG_NEED_RTNL,
9623 },
9624 {
9625 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9626 .doit = nl80211_stop_p2p_device,
9627 .policy = nl80211_policy,
9628 .flags = GENL_ADMIN_PERM,
9629 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9630 NL80211_FLAG_NEED_RTNL,
9631 },
f4e583c8
AQ		 9632 {
9633 .cmd = NL80211_CMD_SET_MCAST_RATE,
9634 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9635 .policy = nl80211_policy,
9636 .flags = GENL_ADMIN_PERM,
9637 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9638 NL80211_FLAG_NEED_RTNL,
9639 },
9640 {
9641 .cmd = NL80211_CMD_SET_MAC_ACL,
9642 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9643 .policy = nl80211_policy,
9644 .flags = GENL_ADMIN_PERM,
9645 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9646 NL80211_FLAG_NEED_RTNL,
9647 },
04f39047
SW		 9648 {
9649 .cmd = NL80211_CMD_RADAR_DETECT,
9650 .doit = nl80211_start_radar_detection,
9651 .policy = nl80211_policy,
9652 .flags = GENL_ADMIN_PERM,
9653 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9654 NL80211_FLAG_NEED_RTNL,
9655 },
3713b4e3
JB		 9656 {
9657 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9658 .doit = nl80211_get_protocol_features,
9659 .policy = nl80211_policy,
9660 },
355199e0
JM		 9661 {
9662 .cmd = NL80211_CMD_UPDATE_FT_IES,
9663 .doit = nl80211_update_ft_ies,
9664 .policy = nl80211_policy,
9665 .flags = GENL_ADMIN_PERM,
9666 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9667 NL80211_FLAG_NEED_RTNL,
9668 },
5de17984
AS		 9669 {
9670 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9671 .doit = nl80211_crit_protocol_start,
9672 .policy = nl80211_policy,
9673 .flags = GENL_ADMIN_PERM,
9674 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9675 NL80211_FLAG_NEED_RTNL,
9676 },
9677 {
9678 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9679 .doit = nl80211_crit_protocol_stop,
9680 .policy = nl80211_policy,
9681 .flags = GENL_ADMIN_PERM,
9682 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9683 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9684 },
9685 {
9686 .cmd = NL80211_CMD_GET_COALESCE,
9687 .doit = nl80211_get_coalesce,
9688 .policy = nl80211_policy,
9689 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9690 NL80211_FLAG_NEED_RTNL,
9691 },
9692 {
9693 .cmd = NL80211_CMD_SET_COALESCE,
9694 .doit = nl80211_set_coalesce,
9695 .policy = nl80211_policy,
9696 .flags = GENL_ADMIN_PERM,
9697 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9698 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 9699 },
9700 {
9701 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9702 .doit = nl80211_channel_switch,
9703 .policy = nl80211_policy,
9704 .flags = GENL_ADMIN_PERM,
9705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9706 NL80211_FLAG_NEED_RTNL,
9707 },
ad7e718c
JB		 9708 {
9709 .cmd = NL80211_CMD_VENDOR,
9710 .doit = nl80211_vendor_cmd,
9711 .policy = nl80211_policy,
9712 .flags = GENL_ADMIN_PERM,
9713 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9714 NL80211_FLAG_NEED_RTNL,
9715 },
55682965 9716};
9588bbd5 9717
55682965
JB		 9718/* notification functions */
9719
9720void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9721{
9722 struct sk_buff *msg;
86e8cf98 9723 struct nl80211_dump_wiphy_state state = {};
55682965 9724
fd2120ca 9725 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9726 if (!msg)
9727 return;
9728
86e8cf98 9729 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 9730 nlmsg_free(msg);
9731 return;
9732 }
9733
68eb5503 9734 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9735 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 9736}
9737
362a415d
JB		 9738static int nl80211_add_scan_req(struct sk_buff *msg,
9739 struct cfg80211_registered_device *rdev)
9740{
9741 struct cfg80211_scan_request *req = rdev->scan_req;
9742 struct nlattr *nest;
9743 int i;
9744
9745 if (WARN_ON(!req))
9746 return 0;
9747
9748 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9749 if (!nest)
9750 goto nla_put_failure;
9360ffd1
DM		 9751 for (i = 0; i < req->n_ssids; i++) {
9752 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9753 goto nla_put_failure;
9754 }
362a415d
JB		 9755 nla_nest_end(msg, nest);
9756
9757 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9758 if (!nest)
9759 goto nla_put_failure;
9360ffd1
DM		 9760 for (i = 0; i < req->n_channels; i++) {
9761 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9762 goto nla_put_failure;
9763 }
362a415d
JB		 9764 nla_nest_end(msg, nest);
9765
9360ffd1
DM		 9766 if (req->ie &&
9767 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9768 goto nla_put_failure;
362a415d 9769
ae917c9f
JB		 9770 if (req->flags &&
9771 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
9772 goto nla_put_failure;
ed473771 9773
362a415d
JB		 9774 return 0;
9775 nla_put_failure:
9776 return -ENOBUFS;
9777}
9778
a538e2d5
JB		 9779static int nl80211_send_scan_msg(struct sk_buff *msg,
9780 struct cfg80211_registered_device *rdev,
fd014284 9781 struct wireless_dev *wdev,
15e47304 9782 u32 portid, u32 seq, int flags,
a538e2d5 9783 u32 cmd)
2a519311
JB		 9784{
9785 void *hdr;
9786
15e47304 9787 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9788 if (!hdr)
9789 return -1;
9790
9360ffd1 9791 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9792 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9793 wdev->netdev->ifindex)) ||
9794 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9795 goto nla_put_failure;
2a519311 9796
362a415d
JB		 9797 /* ignore errors and send incomplete event anyway */
9798 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9799
9800 return genlmsg_end(msg, hdr);
9801
9802 nla_put_failure:
9803 genlmsg_cancel(msg, hdr);
9804 return -EMSGSIZE;
9805}
9806
807f8a8c
LC		 9807static int
9808nl80211_send_sched_scan_msg(struct sk_buff *msg,
9809 struct cfg80211_registered_device *rdev,
9810 struct net_device *netdev,
15e47304 9811 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9812{
9813 void *hdr;
9814
15e47304 9815 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9816 if (!hdr)
9817 return -1;
9818
9360ffd1
DM		 9819 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9820 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9821 goto nla_put_failure;
807f8a8c
LC		 9822
9823 return genlmsg_end(msg, hdr);
9824
9825 nla_put_failure:
9826 genlmsg_cancel(msg, hdr);
9827 return -EMSGSIZE;
9828}
9829
a538e2d5 9830void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9831 struct wireless_dev *wdev)
a538e2d5
JB		 9832{
9833 struct sk_buff *msg;
9834
58050fce 9835 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9836 if (!msg)
9837 return;
9838
fd014284 9839 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9840 NL80211_CMD_TRIGGER_SCAN) < 0) {
9841 nlmsg_free(msg);
9842 return;
9843 }
9844
68eb5503 9845 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9846 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 9847}
9848
2a519311 9849void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9850 struct wireless_dev *wdev)
2a519311
JB		 9851{
9852 struct sk_buff *msg;
9853
fd2120ca 9854 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9855 if (!msg)
9856 return;
9857
fd014284 9858 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9859 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9860 nlmsg_free(msg);
9861 return;
9862 }
9863
68eb5503 9864 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9865 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 9866}
9867
9868void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9869 struct wireless_dev *wdev)
2a519311
JB		 9870{
9871 struct sk_buff *msg;
9872
fd2120ca 9873 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9874 if (!msg)
9875 return;
9876
fd014284 9877 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9878 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9879 nlmsg_free(msg);
9880 return;
9881 }
9882
68eb5503 9883 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9884 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 9885}
9886
807f8a8c
LC		 9887void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9888 struct net_device *netdev)
9889{
9890 struct sk_buff *msg;
9891
9892 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9893 if (!msg)
9894 return;
9895
9896 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9897 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9898 nlmsg_free(msg);
9899 return;
9900 }
9901
68eb5503 9902 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9903 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 9904}
9905
9906void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9907 struct net_device *netdev, u32 cmd)
9908{
9909 struct sk_buff *msg;
9910
58050fce 9911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9912 if (!msg)
9913 return;
9914
9915 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9916 nlmsg_free(msg);
9917 return;
9918 }
9919
68eb5503 9920 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9921 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 9922}
9923
73d54c9e
LR		 9924/*
9925 * This can happen on global regulatory changes or device specific settings
9926 * based on custom world regulatory domains.
9927 */
9928void nl80211_send_reg_change_event(struct regulatory_request *request)
9929{
9930 struct sk_buff *msg;
9931 void *hdr;
9932
fd2120ca 9933 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9934 if (!msg)
9935 return;
9936
9937 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9938 if (!hdr) {
9939 nlmsg_free(msg);
9940 return;
9941 }
9942
9943 /* Userspace can always count this one always being set */
9360ffd1
DM		 9944 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9945 goto nla_put_failure;
9946
9947 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9948 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9949 NL80211_REGDOM_TYPE_WORLD))
9950 goto nla_put_failure;
9951 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9952 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9953 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9954 goto nla_put_failure;
9955 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9956 request->intersect) {
9957 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9958 NL80211_REGDOM_TYPE_INTERSECTION))
9959 goto nla_put_failure;
9960 } else {
9961 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9962 NL80211_REGDOM_TYPE_COUNTRY) ||
9963 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9964 request->alpha2))
9965 goto nla_put_failure;
9966 }
9967
f4173766 9968 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9969 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9970 goto nla_put_failure;
73d54c9e 9971
3b7b72ee 9972 genlmsg_end(msg, hdr);
73d54c9e 9973
bc43b28c 9974 rcu_read_lock();
68eb5503 9975 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 9976 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 9977 rcu_read_unlock();
73d54c9e
LR		 9978
9979 return;
9980
9981nla_put_failure:
9982 genlmsg_cancel(msg, hdr);
9983 nlmsg_free(msg);
9984}
9985
6039f6d2
JM		 9986static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9987 struct net_device *netdev,
9988 const u8 *buf, size_t len,
e6d6e342 9989 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9990{
9991 struct sk_buff *msg;
9992 void *hdr;
9993
e6d6e342 9994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9995 if (!msg)
9996 return;
9997
9998 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9999 if (!hdr) {
10000 nlmsg_free(msg);
10001 return;
10002 }
10003
9360ffd1
DM		 10004 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10005 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10006 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10007 goto nla_put_failure;
6039f6d2 10008
3b7b72ee 10009 genlmsg_end(msg, hdr);
6039f6d2 10010
68eb5503 10011 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10012 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10013 return;
10014
10015 nla_put_failure:
10016 genlmsg_cancel(msg, hdr);
10017 nlmsg_free(msg);
10018}
10019
10020void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10021 struct net_device *netdev, const u8 *buf,
10022 size_t len, gfp_t gfp)
6039f6d2
JM		 10023{
10024 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10025 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10026}
10027
10028void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10029 struct net_device *netdev, const u8 *buf,
e6d6e342 10030 size_t len, gfp_t gfp)
6039f6d2 10031{
e6d6e342
JB		 10032 nl80211_send_mlme_event(rdev, netdev, buf, len,
10033 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10034}
10035
53b46b84 10036void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10037 struct net_device *netdev, const u8 *buf,
10038 size_t len, gfp_t gfp)
6039f6d2
JM		 10039{
10040 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10041 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10042}
10043
53b46b84
JM		 10044void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10045 struct net_device *netdev, const u8 *buf,
e6d6e342 10046 size_t len, gfp_t gfp)
6039f6d2
JM		 10047{
10048 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10049 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10050}
10051
6ff57cf8
JB		 10052void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10053 size_t len)
cf4e594e 10054{
947add36
JB		 10055 struct wireless_dev *wdev = dev->ieee80211_ptr;
10056 struct wiphy *wiphy = wdev->wiphy;
10057 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 10058 const struct ieee80211_mgmt *mgmt = (void *)buf;
10059 u32 cmd;
947add36 10060
6ff57cf8
JB		 10061 if (WARN_ON(len < 2))
10062 return;
cf4e594e 10063
6ff57cf8
JB		 10064 if (ieee80211_is_deauth(mgmt->frame_control))
10065 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10066 else
10067 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10068
6ff57cf8
JB		 10069 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10070 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10071}
6ff57cf8 10072EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10073
1b06bb40
LR		 10074static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10075 struct net_device *netdev, int cmd,
e6d6e342 10076 const u8 *addr, gfp_t gfp)
1965c853
JM		 10077{
10078 struct sk_buff *msg;
10079 void *hdr;
10080
e6d6e342 10081 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10082 if (!msg)
10083 return;
10084
10085 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10086 if (!hdr) {
10087 nlmsg_free(msg);
10088 return;
10089 }
10090
9360ffd1
DM		 10091 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10092 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10093 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10094 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10095 goto nla_put_failure;
1965c853 10096
3b7b72ee 10097 genlmsg_end(msg, hdr);
1965c853 10098
68eb5503 10099 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10100 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10101 return;
10102
10103 nla_put_failure:
10104 genlmsg_cancel(msg, hdr);
10105 nlmsg_free(msg);
10106}
10107
10108void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10109 struct net_device *netdev, const u8 *addr,
10110 gfp_t gfp)
1965c853
JM		 10111{
10112 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10113 addr, gfp);
1965c853
JM		 10114}
10115
10116void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10117 struct net_device *netdev, const u8 *addr,
10118 gfp_t gfp)
1965c853 10119{
e6d6e342
JB		 10120 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10121 addr, gfp);
1965c853
JM		 10122}
10123
b23aa676
SO		 10124void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10125 struct net_device *netdev, const u8 *bssid,
10126 const u8 *req_ie, size_t req_ie_len,
10127 const u8 *resp_ie, size_t resp_ie_len,
10128 u16 status, gfp_t gfp)
10129{
10130 struct sk_buff *msg;
10131 void *hdr;
10132
58050fce 10133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10134 if (!msg)
10135 return;
10136
10137 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10138 if (!hdr) {
10139 nlmsg_free(msg);
10140 return;
10141 }
10142
9360ffd1
DM		 10143 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10144 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10145 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10146 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10147 (req_ie &&
10148 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10149 (resp_ie &&
10150 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10151 goto nla_put_failure;
b23aa676 10152
3b7b72ee 10153 genlmsg_end(msg, hdr);
b23aa676 10154
68eb5503 10155 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10156 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10157 return;
10158
10159 nla_put_failure:
10160 genlmsg_cancel(msg, hdr);
10161 nlmsg_free(msg);
10162
10163}
10164
10165void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10166 struct net_device *netdev, const u8 *bssid,
10167 const u8 *req_ie, size_t req_ie_len,
10168 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10169{
10170 struct sk_buff *msg;
10171 void *hdr;
10172
58050fce 10173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10174 if (!msg)
10175 return;
10176
10177 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10178 if (!hdr) {
10179 nlmsg_free(msg);
10180 return;
10181 }
10182
9360ffd1
DM		 10183 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10184 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10185 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10186 (req_ie &&
10187 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10188 (resp_ie &&
10189 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10190 goto nla_put_failure;
b23aa676 10191
3b7b72ee 10192 genlmsg_end(msg, hdr);
b23aa676 10193
68eb5503 10194 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10195 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10196 return;
10197
10198 nla_put_failure:
10199 genlmsg_cancel(msg, hdr);
10200 nlmsg_free(msg);
10201
10202}
10203
10204void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10205 struct net_device *netdev, u16 reason,
667503dd 10206 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10207{
10208 struct sk_buff *msg;
10209 void *hdr;
10210
58050fce 10211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10212 if (!msg)
10213 return;
10214
10215 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10216 if (!hdr) {
10217 nlmsg_free(msg);
10218 return;
10219 }
10220
9360ffd1
DM		 10221 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10222 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10223 (from_ap && reason &&
10224 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10225 (from_ap &&
10226 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10227 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10228 goto nla_put_failure;
b23aa676 10229
3b7b72ee 10230 genlmsg_end(msg, hdr);
b23aa676 10231
68eb5503 10232 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10233 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10234 return;
10235
10236 nla_put_failure:
10237 genlmsg_cancel(msg, hdr);
10238 nlmsg_free(msg);
10239
10240}
10241
04a773ad
JB		 10242void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10243 struct net_device *netdev, const u8 *bssid,
10244 gfp_t gfp)
10245{
10246 struct sk_buff *msg;
10247 void *hdr;
10248
fd2120ca 10249 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10250 if (!msg)
10251 return;
10252
10253 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10254 if (!hdr) {
10255 nlmsg_free(msg);
10256 return;
10257 }
10258
9360ffd1
DM		 10259 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10260 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10261 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10262 goto nla_put_failure;
04a773ad 10263
3b7b72ee 10264 genlmsg_end(msg, hdr);
04a773ad 10265
68eb5503 10266 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10267 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10268 return;
10269
10270 nla_put_failure:
10271 genlmsg_cancel(msg, hdr);
10272 nlmsg_free(msg);
10273}
10274
947add36
JB		 10275void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10276 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10277{
947add36
JB		 10278 struct wireless_dev *wdev = dev->ieee80211_ptr;
10279 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 10280 struct sk_buff *msg;
10281 void *hdr;
10282
947add36
JB		 10283 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10284 return;
10285
10286 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10287
c93b5e71
JC		 10288 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10289 if (!msg)
10290 return;
10291
10292 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10293 if (!hdr) {
10294 nlmsg_free(msg);
10295 return;
10296 }
10297
9360ffd1 10298 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10299 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10300 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10301 (ie_len && ie &&
10302 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10303 goto nla_put_failure;
c93b5e71 10304
3b7b72ee 10305 genlmsg_end(msg, hdr);
c93b5e71 10306
68eb5503 10307 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10308 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10309 return;
10310
10311 nla_put_failure:
10312 genlmsg_cancel(msg, hdr);
10313 nlmsg_free(msg);
10314}
947add36 10315EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10316
a3b8b056
JM		 10317void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10318 struct net_device *netdev, const u8 *addr,
10319 enum nl80211_key_type key_type, int key_id,
e6d6e342 10320 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10321{
10322 struct sk_buff *msg;
10323 void *hdr;
10324
e6d6e342 10325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10326 if (!msg)
10327 return;
10328
10329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10330 if (!hdr) {
10331 nlmsg_free(msg);
10332 return;
10333 }
10334
9360ffd1
DM		 10335 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10336 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10337 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10338 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10339 (key_id != -1 &&
10340 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10341 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10342 goto nla_put_failure;
a3b8b056 10343
3b7b72ee 10344 genlmsg_end(msg, hdr);
a3b8b056 10345
68eb5503 10346 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10347 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10348 return;
10349
10350 nla_put_failure:
10351 genlmsg_cancel(msg, hdr);
10352 nlmsg_free(msg);
10353}
10354
6bad8766
LR		 10355void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10356 struct ieee80211_channel *channel_before,
10357 struct ieee80211_channel *channel_after)
10358{
10359 struct sk_buff *msg;
10360 void *hdr;
10361 struct nlattr *nl_freq;
10362
fd2120ca 10363 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10364 if (!msg)
10365 return;
10366
10367 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10368 if (!hdr) {
10369 nlmsg_free(msg);
10370 return;
10371 }
10372
10373 /*
10374 * Since we are applying the beacon hint to a wiphy we know its
10375 * wiphy_idx is valid
10376 */
9360ffd1
DM		 10377 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10378 goto nla_put_failure;
6bad8766
LR		 10379
10380 /* Before */
10381 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10382 if (!nl_freq)
10383 goto nla_put_failure;
cdc89b97 10384 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10385 goto nla_put_failure;
10386 nla_nest_end(msg, nl_freq);
10387
10388 /* After */
10389 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10390 if (!nl_freq)
10391 goto nla_put_failure;
cdc89b97 10392 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10393 goto nla_put_failure;
10394 nla_nest_end(msg, nl_freq);
10395
3b7b72ee 10396 genlmsg_end(msg, hdr);
6bad8766 10397
463d0183 10398 rcu_read_lock();
68eb5503 10399 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10400 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10401 rcu_read_unlock();
6bad8766
LR		 10402
10403 return;
10404
10405nla_put_failure:
10406 genlmsg_cancel(msg, hdr);
10407 nlmsg_free(msg);
10408}
10409
9588bbd5
JM		 10410static void nl80211_send_remain_on_chan_event(
10411 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10412 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10413 struct ieee80211_channel *chan,
9588bbd5
JM		 10414 unsigned int duration, gfp_t gfp)
10415{
10416 struct sk_buff *msg;
10417 void *hdr;
10418
10419 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10420 if (!msg)
10421 return;
10422
10423 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10424 if (!hdr) {
10425 nlmsg_free(msg);
10426 return;
10427 }
10428
9360ffd1 10429 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10430 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10431 wdev->netdev->ifindex)) ||
00f53350 10432 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10433 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10434 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10435 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10436 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10437 goto nla_put_failure;
9588bbd5 10438
9360ffd1
DM		 10439 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10440 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10441 goto nla_put_failure;
9588bbd5 10442
3b7b72ee 10443 genlmsg_end(msg, hdr);
9588bbd5 10444
68eb5503 10445 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10446 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10447 return;
10448
10449 nla_put_failure:
10450 genlmsg_cancel(msg, hdr);
10451 nlmsg_free(msg);
10452}
10453
947add36
JB		 10454void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10455 struct ieee80211_channel *chan,
10456 unsigned int duration, gfp_t gfp)
9588bbd5 10457{
947add36
JB		 10458 struct wiphy *wiphy = wdev->wiphy;
10459 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10460
10461 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10462 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10463 rdev, wdev, cookie, chan,
42d97a59 10464 duration, gfp);
9588bbd5 10465}
947add36 10466EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10467
947add36
JB		 10468void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10469 struct ieee80211_channel *chan,
10470 gfp_t gfp)
9588bbd5 10471{
947add36
JB		 10472 struct wiphy *wiphy = wdev->wiphy;
10473 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10474
10475 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10476 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10477 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10478}
947add36 10479EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10480
947add36
JB		 10481void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10482 struct station_info *sinfo, gfp_t gfp)
98b62183 10483{
947add36
JB		 10484 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10485 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10486 struct sk_buff *msg;
10487
947add36
JB		 10488 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10489
58050fce 10490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10491 if (!msg)
10492 return;
10493
66266b3a
JL		 10494 if (nl80211_send_station(msg, 0, 0, 0,
10495 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10496 nlmsg_free(msg);
10497 return;
10498 }
10499
68eb5503 10500 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10501 NL80211_MCGRP_MLME, gfp);
98b62183 10502}
947add36 10503EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10504
947add36 10505void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10506{
947add36
JB		 10507 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10508 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10509 struct sk_buff *msg;
10510 void *hdr;
10511
947add36
JB		 10512 trace_cfg80211_del_sta(dev, mac_addr);
10513
58050fce 10514 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10515 if (!msg)
10516 return;
10517
10518 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10519 if (!hdr) {
10520 nlmsg_free(msg);
10521 return;
10522 }
10523
9360ffd1
DM		 10524 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10525 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10526 goto nla_put_failure;
ec15e68b 10527
3b7b72ee 10528 genlmsg_end(msg, hdr);
ec15e68b 10529
68eb5503 10530 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10531 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10532 return;
10533
10534 nla_put_failure:
10535 genlmsg_cancel(msg, hdr);
10536 nlmsg_free(msg);
10537}
947add36 10538EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10539
947add36
JB		 10540void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10541 enum nl80211_connect_failed_reason reason,
10542 gfp_t gfp)
ed44a951 10543{
947add36
JB		 10544 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10545 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10546 struct sk_buff *msg;
10547 void *hdr;
10548
10549 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10550 if (!msg)
10551 return;
10552
10553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10554 if (!hdr) {
10555 nlmsg_free(msg);
10556 return;
10557 }
10558
10559 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10560 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10561 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10562 goto nla_put_failure;
10563
10564 genlmsg_end(msg, hdr);
10565
68eb5503 10566 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10567 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10568 return;
10569
10570 nla_put_failure:
10571 genlmsg_cancel(msg, hdr);
10572 nlmsg_free(msg);
10573}
947add36 10574EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10575
b92ab5d8
JB		 10576static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10577 const u8 *addr, gfp_t gfp)
28946da7
JB		 10578{
10579 struct wireless_dev *wdev = dev->ieee80211_ptr;
10580 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10581 struct sk_buff *msg;
10582 void *hdr;
15e47304 10583 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10584
15e47304 10585 if (!nlportid)
28946da7
JB		 10586 return false;
10587
10588 msg = nlmsg_new(100, gfp);
10589 if (!msg)
10590 return true;
10591
b92ab5d8 10592 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10593 if (!hdr) {
10594 nlmsg_free(msg);
10595 return true;
10596 }
10597
9360ffd1
DM		 10598 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10599 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10600 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10601 goto nla_put_failure;
28946da7 10602
9c90a9f6 10603 genlmsg_end(msg, hdr);
15e47304 10604 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10605 return true;
10606
10607 nla_put_failure:
10608 genlmsg_cancel(msg, hdr);
10609 nlmsg_free(msg);
10610 return true;
10611}
10612
947add36
JB		 10613bool cfg80211_rx_spurious_frame(struct net_device *dev,
10614 const u8 *addr, gfp_t gfp)
b92ab5d8 10615{
947add36
JB		 10616 struct wireless_dev *wdev = dev->ieee80211_ptr;
10617 bool ret;
10618
10619 trace_cfg80211_rx_spurious_frame(dev, addr);
10620
10621 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10622 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10623 trace_cfg80211_return_bool(false);
10624 return false;
10625 }
10626 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10627 addr, gfp);
10628 trace_cfg80211_return_bool(ret);
10629 return ret;
b92ab5d8 10630}
947add36 10631EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10632
947add36
JB		 10633bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10634 const u8 *addr, gfp_t gfp)
b92ab5d8 10635{
947add36
JB		 10636 struct wireless_dev *wdev = dev->ieee80211_ptr;
10637 bool ret;
10638
10639 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10640
10641 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10642 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10643 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10644 trace_cfg80211_return_bool(false);
10645 return false;
10646 }
10647 ret = __nl80211_unexpected_frame(dev,
10648 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10649 addr, gfp);
10650 trace_cfg80211_return_bool(ret);
10651 return ret;
b92ab5d8 10652}
947add36 10653EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10654
2e161f78 10655int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10656 struct wireless_dev *wdev, u32 nlportid,
804483e9 10657 int freq, int sig_dbm,
19504cf5 10658 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10659{
71bbc994 10660 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10661 struct sk_buff *msg;
10662 void *hdr;
026331c4
JM		 10663
10664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10665 if (!msg)
10666 return -ENOMEM;
10667
2e161f78 10668 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10669 if (!hdr) {
10670 nlmsg_free(msg);
10671 return -ENOMEM;
10672 }
10673
9360ffd1 10674 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10675 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10676 netdev->ifindex)) ||
a838490b 10677 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10678 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10679 (sig_dbm &&
10680 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10681 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10682 (flags &&
10683 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10684 goto nla_put_failure;
026331c4 10685
3b7b72ee 10686 genlmsg_end(msg, hdr);
026331c4 10687
15e47304 10688 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10689
10690 nla_put_failure:
10691 genlmsg_cancel(msg, hdr);
10692 nlmsg_free(msg);
10693 return -ENOBUFS;
10694}
10695
947add36
JB		 10696void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10697 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10698{
947add36
JB		 10699 struct wiphy *wiphy = wdev->wiphy;
10700 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10701 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10702 struct sk_buff *msg;
10703 void *hdr;
10704
947add36
JB		 10705 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10706
026331c4
JM		 10707 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10708 if (!msg)
10709 return;
10710
2e161f78 10711 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10712 if (!hdr) {
10713 nlmsg_free(msg);
10714 return;
10715 }
10716
9360ffd1 10717 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10718 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10719 netdev->ifindex)) ||
a838490b 10720 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10721 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10722 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10723 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10724 goto nla_put_failure;
026331c4 10725
3b7b72ee 10726 genlmsg_end(msg, hdr);
026331c4 10727
68eb5503 10728 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10729 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 10730 return;
10731
10732 nla_put_failure:
10733 genlmsg_cancel(msg, hdr);
10734 nlmsg_free(msg);
10735}
947add36 10736EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10737
947add36
JB		 10738void cfg80211_cqm_rssi_notify(struct net_device *dev,
10739 enum nl80211_cqm_rssi_threshold_event rssi_event,
10740 gfp_t gfp)
d6dc1a38 10741{
947add36
JB		 10742 struct wireless_dev *wdev = dev->ieee80211_ptr;
10743 struct wiphy *wiphy = wdev->wiphy;
10744 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10745 struct sk_buff *msg;
10746 struct nlattr *pinfoattr;
10747 void *hdr;
10748
947add36
JB		 10749 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10750
58050fce 10751 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10752 if (!msg)
10753 return;
10754
10755 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10756 if (!hdr) {
10757 nlmsg_free(msg);
10758 return;
10759 }
10760
9360ffd1 10761 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10762 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10763 goto nla_put_failure;
d6dc1a38
JO		 10764
10765 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10766 if (!pinfoattr)
10767 goto nla_put_failure;
10768
9360ffd1
DM		 10769 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10770 rssi_event))
10771 goto nla_put_failure;
d6dc1a38
JO		 10772
10773 nla_nest_end(msg, pinfoattr);
10774
3b7b72ee 10775 genlmsg_end(msg, hdr);
d6dc1a38 10776
68eb5503 10777 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10778 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 10779 return;
10780
10781 nla_put_failure:
10782 genlmsg_cancel(msg, hdr);
10783 nlmsg_free(msg);
10784}
947add36 10785EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10786
947add36
JB		 10787static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10788 struct net_device *netdev, const u8 *bssid,
10789 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10790{
10791 struct sk_buff *msg;
10792 struct nlattr *rekey_attr;
10793 void *hdr;
10794
58050fce 10795 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10796 if (!msg)
10797 return;
10798
10799 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10800 if (!hdr) {
10801 nlmsg_free(msg);
10802 return;
10803 }
10804
9360ffd1
DM		 10805 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10806 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10807 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10808 goto nla_put_failure;
e5497d76
JB		 10809
10810 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10811 if (!rekey_attr)
10812 goto nla_put_failure;
10813
9360ffd1
DM		 10814 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10815 NL80211_REPLAY_CTR_LEN, replay_ctr))
10816 goto nla_put_failure;
e5497d76
JB		 10817
10818 nla_nest_end(msg, rekey_attr);
10819
3b7b72ee 10820 genlmsg_end(msg, hdr);
e5497d76 10821
68eb5503 10822 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10823 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 10824 return;
10825
10826 nla_put_failure:
10827 genlmsg_cancel(msg, hdr);
10828 nlmsg_free(msg);
10829}
10830
947add36
JB		 10831void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10832 const u8 *replay_ctr, gfp_t gfp)
10833{
10834 struct wireless_dev *wdev = dev->ieee80211_ptr;
10835 struct wiphy *wiphy = wdev->wiphy;
10836 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10837
10838 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10839 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10840}
10841EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10842
10843static void
10844nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10845 struct net_device *netdev, int index,
10846 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10847{
10848 struct sk_buff *msg;
10849 struct nlattr *attr;
10850 void *hdr;
10851
58050fce 10852 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10853 if (!msg)
10854 return;
10855
10856 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10857 if (!hdr) {
10858 nlmsg_free(msg);
10859 return;
10860 }
10861
9360ffd1
DM		 10862 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10863 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10864 goto nla_put_failure;
c9df56b4
JM		 10865
10866 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10867 if (!attr)
10868 goto nla_put_failure;
10869
9360ffd1
DM		 10870 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10871 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10872 (preauth &&
10873 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10874 goto nla_put_failure;
c9df56b4
JM		 10875
10876 nla_nest_end(msg, attr);
10877
3b7b72ee 10878 genlmsg_end(msg, hdr);
c9df56b4 10879
68eb5503 10880 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10881 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 10882 return;
10883
10884 nla_put_failure:
10885 genlmsg_cancel(msg, hdr);
10886 nlmsg_free(msg);
10887}
10888
947add36
JB		 10889void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10890 const u8 *bssid, bool preauth, gfp_t gfp)
10891{
10892 struct wireless_dev *wdev = dev->ieee80211_ptr;
10893 struct wiphy *wiphy = wdev->wiphy;
10894 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10895
10896 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10897 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10898}
10899EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10900
10901static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10902 struct net_device *netdev,
10903 struct cfg80211_chan_def *chandef,
10904 gfp_t gfp)
5314526b
TP		 10905{
10906 struct sk_buff *msg;
10907 void *hdr;
10908
58050fce 10909 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10910 if (!msg)
10911 return;
10912
10913 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10914 if (!hdr) {
10915 nlmsg_free(msg);
10916 return;
10917 }
10918
683b6d3b
JB		 10919 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10920 goto nla_put_failure;
10921
10922 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10923 goto nla_put_failure;
5314526b
TP		 10924
10925 genlmsg_end(msg, hdr);
10926
68eb5503 10927 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10928 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 10929 return;
10930
10931 nla_put_failure:
10932 genlmsg_cancel(msg, hdr);
10933 nlmsg_free(msg);
10934}
10935
947add36
JB		 10936void cfg80211_ch_switch_notify(struct net_device *dev,
10937 struct cfg80211_chan_def *chandef)
84f10708 10938{
947add36
JB		 10939 struct wireless_dev *wdev = dev->ieee80211_ptr;
10940 struct wiphy *wiphy = wdev->wiphy;
10941 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10942
e487eaeb 10943 ASSERT_WDEV_LOCK(wdev);
947add36 10944
e487eaeb 10945 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 10946
10947 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 10948 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 10949 wdev->iftype != NL80211_IFTYPE_ADHOC &&
10950 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 10951 return;
947add36
JB		 10952
10953 wdev->channel = chandef->chan;
10954 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 10955}
10956EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10957
10958void cfg80211_cqm_txe_notify(struct net_device *dev,
10959 const u8 *peer, u32 num_packets,
10960 u32 rate, u32 intvl, gfp_t gfp)
10961{
10962 struct wireless_dev *wdev = dev->ieee80211_ptr;
10963 struct wiphy *wiphy = wdev->wiphy;
10964 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10965 struct sk_buff *msg;
10966 struct nlattr *pinfoattr;
10967 void *hdr;
10968
10969 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10970 if (!msg)
10971 return;
10972
10973 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10974 if (!hdr) {
10975 nlmsg_free(msg);
10976 return;
10977 }
10978
10979 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10980 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10981 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10982 goto nla_put_failure;
10983
10984 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10985 if (!pinfoattr)
10986 goto nla_put_failure;
10987
10988 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10989 goto nla_put_failure;
10990
10991 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10992 goto nla_put_failure;
10993
10994 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10995 goto nla_put_failure;
10996
10997 nla_nest_end(msg, pinfoattr);
10998
10999 genlmsg_end(msg, hdr);
11000
68eb5503 11001 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11002 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11003 return;
11004
11005 nla_put_failure:
11006 genlmsg_cancel(msg, hdr);
11007 nlmsg_free(msg);
11008}
947add36 11009EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11010
04f39047
SW		 11011void
11012nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11013 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11014 enum nl80211_radar_event event,
11015 struct net_device *netdev, gfp_t gfp)
11016{
11017 struct sk_buff *msg;
11018 void *hdr;
11019
11020 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11021 if (!msg)
11022 return;
11023
11024 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11025 if (!hdr) {
11026 nlmsg_free(msg);
11027 return;
11028 }
11029
11030 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11031 goto nla_put_failure;
11032
11033 /* NOP and radar events don't need a netdev parameter */
11034 if (netdev) {
11035 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11036
11037 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11038 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11039 goto nla_put_failure;
11040 }
11041
11042 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11043 goto nla_put_failure;
11044
11045 if (nl80211_send_chandef(msg, chandef))
11046 goto nla_put_failure;
11047
9c90a9f6 11048 genlmsg_end(msg, hdr);
04f39047 11049
68eb5503 11050 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11051 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11052 return;
11053
11054 nla_put_failure:
11055 genlmsg_cancel(msg, hdr);
11056 nlmsg_free(msg);
11057}
11058
947add36
JB		 11059void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11060 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11061{
947add36
JB		 11062 struct wireless_dev *wdev = dev->ieee80211_ptr;
11063 struct wiphy *wiphy = wdev->wiphy;
11064 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 11065 struct sk_buff *msg;
11066 struct nlattr *pinfoattr;
11067 void *hdr;
11068
947add36
JB		 11069 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11070
58050fce 11071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11072 if (!msg)
11073 return;
11074
11075 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11076 if (!hdr) {
11077 nlmsg_free(msg);
11078 return;
11079 }
11080
9360ffd1 11081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11083 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11084 goto nla_put_failure;
c063dbf5
JB		 11085
11086 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11087 if (!pinfoattr)
11088 goto nla_put_failure;
11089
9360ffd1
DM		 11090 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11091 goto nla_put_failure;
c063dbf5
JB		 11092
11093 nla_nest_end(msg, pinfoattr);
11094
3b7b72ee 11095 genlmsg_end(msg, hdr);
c063dbf5 11096
68eb5503 11097 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11098 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11099 return;
11100
11101 nla_put_failure:
11102 genlmsg_cancel(msg, hdr);
11103 nlmsg_free(msg);
11104}
947add36 11105EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11106
7f6cf311
JB		 11107void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11108 u64 cookie, bool acked, gfp_t gfp)
11109{
11110 struct wireless_dev *wdev = dev->ieee80211_ptr;
11111 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11112 struct sk_buff *msg;
11113 void *hdr;
7f6cf311 11114
4ee3e063
BL		 11115 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11116
58050fce 11117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11118
7f6cf311
JB		 11119 if (!msg)
11120 return;
11121
11122 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11123 if (!hdr) {
11124 nlmsg_free(msg);
11125 return;
11126 }
11127
9360ffd1
DM		 11128 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11129 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11130 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11131 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11132 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11133 goto nla_put_failure;
7f6cf311 11134
9c90a9f6 11135 genlmsg_end(msg, hdr);
7f6cf311 11136
68eb5503 11137 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11138 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11139 return;
11140
11141 nla_put_failure:
11142 genlmsg_cancel(msg, hdr);
11143 nlmsg_free(msg);
11144}
11145EXPORT_SYMBOL(cfg80211_probe_status);
11146
5e760230
JB		 11147void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11148 const u8 *frame, size_t len,
37c73b5f 11149 int freq, int sig_dbm)
5e760230
JB		 11150{
11151 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11152 struct sk_buff *msg;
11153 void *hdr;
37c73b5f 11154 struct cfg80211_beacon_registration *reg;
5e760230 11155
4ee3e063
BL		 11156 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11157
37c73b5f
BG		 11158 spin_lock_bh(&rdev->beacon_registrations_lock);
11159 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11160 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11161 if (!msg) {
11162 spin_unlock_bh(&rdev->beacon_registrations_lock);
11163 return;
11164 }
5e760230 11165
37c73b5f
BG		 11166 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11167 if (!hdr)
11168 goto nla_put_failure;
5e760230 11169
37c73b5f
BG		 11170 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11171 (freq &&
11172 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11173 (sig_dbm &&
11174 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11175 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11176 goto nla_put_failure;
5e760230 11177
37c73b5f 11178 genlmsg_end(msg, hdr);
5e760230 11179
37c73b5f
BG		 11180 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11181 }
11182 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11183 return;
11184
11185 nla_put_failure:
37c73b5f
BG		 11186 spin_unlock_bh(&rdev->beacon_registrations_lock);
11187 if (hdr)
11188 genlmsg_cancel(msg, hdr);
5e760230
JB		 11189 nlmsg_free(msg);
11190}
11191EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11192
cd8f7cb4
JB		 11193#ifdef CONFIG_PM
11194void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11195 struct cfg80211_wowlan_wakeup *wakeup,
11196 gfp_t gfp)
11197{
11198 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11199 struct sk_buff *msg;
11200 void *hdr;
9c90a9f6 11201 int size = 200;
cd8f7cb4
JB		 11202
11203 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11204
11205 if (wakeup)
11206 size += wakeup->packet_present_len;
11207
11208 msg = nlmsg_new(size, gfp);
11209 if (!msg)
11210 return;
11211
11212 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11213 if (!hdr)
11214 goto free_msg;
11215
11216 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11217 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11218 goto free_msg;
11219
11220 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11221 wdev->netdev->ifindex))
11222 goto free_msg;
11223
11224 if (wakeup) {
11225 struct nlattr *reasons;
11226
11227 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11228 if (!reasons)
11229 goto free_msg;
cd8f7cb4
JB		 11230
11231 if (wakeup->disconnect &&
11232 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11233 goto free_msg;
11234 if (wakeup->magic_pkt &&
11235 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11236 goto free_msg;
11237 if (wakeup->gtk_rekey_failure &&
11238 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11239 goto free_msg;
11240 if (wakeup->eap_identity_req &&
11241 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11242 goto free_msg;
11243 if (wakeup->four_way_handshake &&
11244 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11245 goto free_msg;
11246 if (wakeup->rfkill_release &&
11247 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11248 goto free_msg;
11249
11250 if (wakeup->pattern_idx >= 0 &&
11251 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11252 wakeup->pattern_idx))
11253 goto free_msg;
11254
ae917c9f
JB		 11255 if (wakeup->tcp_match &&
11256 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11257 goto free_msg;
2a0e047e 11258
ae917c9f
JB		 11259 if (wakeup->tcp_connlost &&
11260 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11261 goto free_msg;
2a0e047e 11262
ae917c9f
JB		 11263 if (wakeup->tcp_nomoretokens &&
11264 nla_put_flag(msg,
11265 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11266 goto free_msg;
2a0e047e 11267
cd8f7cb4
JB		 11268 if (wakeup->packet) {
11269 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11270 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11271
11272 if (!wakeup->packet_80211) {
11273 pkt_attr =
11274 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11275 len_attr =
11276 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11277 }
11278
11279 if (wakeup->packet_len &&
11280 nla_put_u32(msg, len_attr, wakeup->packet_len))
11281 goto free_msg;
11282
11283 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11284 wakeup->packet))
11285 goto free_msg;
11286 }
11287
11288 nla_nest_end(msg, reasons);
11289 }
11290
9c90a9f6 11291 genlmsg_end(msg, hdr);
cd8f7cb4 11292
68eb5503 11293 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11294 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11295 return;
11296
11297 free_msg:
11298 nlmsg_free(msg);
11299}
11300EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11301#endif
11302
3475b094
JM		 11303void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11304 enum nl80211_tdls_operation oper,
11305 u16 reason_code, gfp_t gfp)
11306{
11307 struct wireless_dev *wdev = dev->ieee80211_ptr;
11308 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11309 struct sk_buff *msg;
11310 void *hdr;
3475b094
JM		 11311
11312 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11313 reason_code);
11314
11315 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11316 if (!msg)
11317 return;
11318
11319 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11320 if (!hdr) {
11321 nlmsg_free(msg);
11322 return;
11323 }
11324
11325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11326 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11327 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11328 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11329 (reason_code > 0 &&
11330 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11331 goto nla_put_failure;
11332
9c90a9f6 11333 genlmsg_end(msg, hdr);
3475b094 11334
68eb5503 11335 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11336 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11337 return;
11338
11339 nla_put_failure:
11340 genlmsg_cancel(msg, hdr);
11341 nlmsg_free(msg);
11342}
11343EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11344
026331c4
JM		 11345static int nl80211_netlink_notify(struct notifier_block * nb,
11346 unsigned long state,
11347 void *_notify)
11348{
11349 struct netlink_notify *notify = _notify;
11350 struct cfg80211_registered_device *rdev;
11351 struct wireless_dev *wdev;
37c73b5f 11352 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11353
11354 if (state != NETLINK_URELEASE)
11355 return NOTIFY_DONE;
11356
11357 rcu_read_lock();
11358
5e760230 11359 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 11360 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 11361 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 11362
11363 spin_lock_bh(&rdev->beacon_registrations_lock);
11364 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11365 list) {
11366 if (reg->nlportid == notify->portid) {
11367 list_del(&reg->list);
11368 kfree(reg);
11369 break;
11370 }
11371 }
11372 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 11373 }
026331c4
JM		 11374
11375 rcu_read_unlock();
11376
11377 return NOTIFY_DONE;
11378}
11379
11380static struct notifier_block nl80211_netlink_notifier = {
11381 .notifier_call = nl80211_netlink_notify,
11382};
11383
355199e0
JM		 11384void cfg80211_ft_event(struct net_device *netdev,
11385 struct cfg80211_ft_event_params *ft_event)
11386{
11387 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11388 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11389 struct sk_buff *msg;
11390 void *hdr;
355199e0
JM		 11391
11392 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11393
11394 if (!ft_event->target_ap)
11395 return;
11396
11397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11398 if (!msg)
11399 return;
11400
11401 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11402 if (!hdr)
11403 goto out;
355199e0 11404
ae917c9f
JB		 11405 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11406 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11407 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11408 goto out;
355199e0 11409
ae917c9f
JB		 11410 if (ft_event->ies &&
11411 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11412 goto out;
11413 if (ft_event->ric_ies &&
11414 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11415 ft_event->ric_ies))
11416 goto out;
355199e0 11417
9c90a9f6 11418 genlmsg_end(msg, hdr);
355199e0 11419
68eb5503 11420 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11421 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11422 return;
11423 out:
11424 nlmsg_free(msg);
355199e0
JM		 11425}
11426EXPORT_SYMBOL(cfg80211_ft_event);
11427
5de17984
AS		 11428void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11429{
11430 struct cfg80211_registered_device *rdev;
11431 struct sk_buff *msg;
11432 void *hdr;
11433 u32 nlportid;
11434
11435 rdev = wiphy_to_dev(wdev->wiphy);
11436 if (!rdev->crit_proto_nlportid)
11437 return;
11438
11439 nlportid = rdev->crit_proto_nlportid;
11440 rdev->crit_proto_nlportid = 0;
11441
11442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11443 if (!msg)
11444 return;
11445
11446 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11447 if (!hdr)
11448 goto nla_put_failure;
11449
11450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11451 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11452 goto nla_put_failure;
11453
11454 genlmsg_end(msg, hdr);
11455
11456 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11457 return;
11458
11459 nla_put_failure:
11460 if (hdr)
11461 genlmsg_cancel(msg, hdr);
11462 nlmsg_free(msg);
11463
11464}
11465EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11466
55682965
JB		 11467/* initialisation/exit functions */
11468
11469int nl80211_init(void)
11470{
0d63cbb5 11471 int err;
55682965 11472
2a94fe48
JB		 11473 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11474 nl80211_mcgrps);
55682965
JB		 11475 if (err)
11476 return err;
11477
026331c4
JM		 11478 err = netlink_register_notifier(&nl80211_netlink_notifier);
11479 if (err)
11480 goto err_out;
11481
55682965
JB		 11482 return 0;
11483 err_out:
11484 genl_unregister_family(&nl80211_fam);
11485 return err;
11486}
11487
11488void nl80211_exit(void)
11489{
026331c4 11490 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11491 genl_unregister_family(&nl80211_fam);
11492}
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