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Merge remote-tracking branch 'spi/fix/core' into spi-linus
[linux-2.6-block.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,
567ffc35 56 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 57 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
58};
59
60static const struct genl_multicast_group nl80211_mcgrps[] = {
61 [NL80211_MCGRP_CONFIG] = { .name = "config", },
62 [NL80211_MCGRP_SCAN] = { .name = "scan", },
63 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
64 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 65 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 66#ifdef CONFIG_NL80211_TESTMODE
67 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
68#endif
69};
70
89a54e48
JB		 71/* returns ERR_PTR values */
72static struct wireless_dev *
73__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 74{
89a54e48
JB		 75 struct cfg80211_registered_device *rdev;
76 struct wireless_dev *result = NULL;
77 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
78 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
79 u64 wdev_id;
80 int wiphy_idx = -1;
81 int ifidx = -1;
55682965 82
5fe231e8 83 ASSERT_RTNL();
55682965 84
89a54e48
JB		 85 if (!have_ifidx && !have_wdev_id)
86 return ERR_PTR(-EINVAL);
55682965 87
89a54e48
JB		 88 if (have_ifidx)
89 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
90 if (have_wdev_id) {
91 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
92 wiphy_idx = wdev_id >> 32;
55682965
JB		 93 }
94
89a54e48
JB		 95 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
96 struct wireless_dev *wdev;
97
98 if (wiphy_net(&rdev->wiphy) != netns)
99 continue;
100
101 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
102 continue;
103
89a54e48
JB		 104 list_for_each_entry(wdev, &rdev->wdev_list, list) {
105 if (have_ifidx && wdev->netdev &&
106 wdev->netdev->ifindex == ifidx) {
107 result = wdev;
108 break;
109 }
110 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
111 result = wdev;
112 break;
113 }
114 }
89a54e48
JB		 115
116 if (result)
117 break;
118 }
119
120 if (result)
121 return result;
122 return ERR_PTR(-ENODEV);
55682965
JB		 123}
124
a9455408 125static struct cfg80211_registered_device *
878d9ec7 126__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 127{
7fee4778
JB		 128 struct cfg80211_registered_device *rdev = NULL, *tmp;
129 struct net_device *netdev;
a9455408 130
5fe231e8 131 ASSERT_RTNL();
a9455408 132
878d9ec7 133 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 134 !attrs[NL80211_ATTR_IFINDEX] &&
135 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 136 return ERR_PTR(-EINVAL);
137
878d9ec7 138 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 139 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 140 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 141
89a54e48
JB		 142 if (attrs[NL80211_ATTR_WDEV]) {
143 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
144 struct wireless_dev *wdev;
145 bool found = false;
146
147 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
148 if (tmp) {
149 /* make sure wdev exists */
89a54e48
JB		 150 list_for_each_entry(wdev, &tmp->wdev_list, list) {
151 if (wdev->identifier != (u32)wdev_id)
152 continue;
153 found = true;
154 break;
155 }
89a54e48
JB		 156
157 if (!found)
158 tmp = NULL;
159
160 if (rdev && tmp != rdev)
161 return ERR_PTR(-EINVAL);
162 rdev = tmp;
163 }
164 }
165
878d9ec7
JB		 166 if (attrs[NL80211_ATTR_IFINDEX]) {
167 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 168 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 169 if (netdev) {
170 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 171 tmp = wiphy_to_rdev(
172 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 173 else
174 tmp = NULL;
175
7fee4778
JB		 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 },
9a774c78
AO		 374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
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 },
fa9ffc74
KP		 383 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
384 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 385 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
386 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 387 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 388 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 389 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
55682965
JB		 390};
391
e31b8213 392/* policy for the key attributes */
b54452b0 393static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 394 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 395 [NL80211_KEY_IDX] = { .type = NLA_U8 },
396 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 397 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 398 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
399 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 400 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 401 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
402};
403
404/* policy for the key default flags */
405static const struct nla_policy
406nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
407 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
408 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 409};
410
ff1b6e69
JB		 411/* policy for WoWLAN attributes */
412static const struct nla_policy
413nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
414 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 418 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
421 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 422 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
423};
424
425static const struct nla_policy
426nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
427 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
428 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
429 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
430 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
431 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
432 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
434 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
435 },
436 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
437 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
438 },
439 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
440 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
441 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 442};
443
be29b99a
AK		 444/* policy for coalesce rule attributes */
445static const struct nla_policy
446nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
447 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
448 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
449 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
450};
451
e5497d76
JB		 452/* policy for GTK rekey offload attributes */
453static const struct nla_policy
454nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
455 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
456 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
457 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
458};
459
a1f1c21c
LC		 460static const struct nla_policy
461nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 462 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 463 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 464 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 465};
466
97990a06
JB		 467static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
468 struct netlink_callback *cb,
469 struct cfg80211_registered_device **rdev,
470 struct wireless_dev **wdev)
a043897a 471{
97990a06 472 int err;
a043897a 473
97990a06 474 rtnl_lock();
a043897a 475
97990a06
JB		 476 if (!cb->args[0]) {
477 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
478 nl80211_fam.attrbuf, nl80211_fam.maxattr,
479 nl80211_policy);
480 if (err)
481 goto out_unlock;
67748893 482
97990a06
JB		 483 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
484 nl80211_fam.attrbuf);
485 if (IS_ERR(*wdev)) {
486 err = PTR_ERR(*wdev);
487 goto out_unlock;
488 }
f26cbf40 489 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 490 /* 0 is the first index - add 1 to parse only once */
491 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 492 cb->args[1] = (*wdev)->identifier;
493 } else {
c319d50b
JB		 494 /* subtract the 1 again here */
495 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 496 struct wireless_dev *tmp;
67748893 497
97990a06
JB		 498 if (!wiphy) {
499 err = -ENODEV;
500 goto out_unlock;
501 }
f26cbf40 502 *rdev = wiphy_to_rdev(wiphy);
97990a06 503 *wdev = NULL;
67748893 504
97990a06
JB		 505 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
506 if (tmp->identifier == cb->args[1]) {
507 *wdev = tmp;
508 break;
509 }
510 }
67748893 511
97990a06
JB		 512 if (!*wdev) {
513 err = -ENODEV;
514 goto out_unlock;
515 }
67748893
JB		 516 }
517
67748893 518 return 0;
97990a06 519 out_unlock:
67748893
JB		 520 rtnl_unlock();
521 return err;
522}
523
97990a06 524static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 525{
67748893
JB		 526 rtnl_unlock();
527}
528
f4a11bb0
JB		 529/* IE validation */
530static bool is_valid_ie_attr(const struct nlattr *attr)
531{
532 const u8 *pos;
533 int len;
534
535 if (!attr)
536 return true;
537
538 pos = nla_data(attr);
539 len = nla_len(attr);
540
541 while (len) {
542 u8 elemlen;
543
544 if (len < 2)
545 return false;
546 len -= 2;
547
548 elemlen = pos[1];
549 if (elemlen > len)
550 return false;
551
552 len -= elemlen;
553 pos += 2 + elemlen;
554 }
555
556 return true;
557}
558
55682965 559/* message building helper */
15e47304 560static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 561 int flags, u8 cmd)
562{
563 /* since there is no private header just add the generic one */
15e47304 564 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 565}
566
5dab3b8a 567static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 568 struct ieee80211_channel *chan,
569 bool large)
5dab3b8a 570{
ea077c1c
RL		 571 /* Some channels must be completely excluded from the
572 * list to protect old user-space tools from breaking
573 */
574 if (!large && chan->flags &
575 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
576 return 0;
577
9360ffd1
DM		 578 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
579 chan->center_freq))
580 goto nla_put_failure;
5dab3b8a 581
9360ffd1
DM		 582 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
583 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
584 goto nla_put_failure;
8fe02e16
LR		 585 if (chan->flags & IEEE80211_CHAN_NO_IR) {
586 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
587 goto nla_put_failure;
588 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
589 goto nla_put_failure;
590 }
cdc89b97
JB		 591 if (chan->flags & IEEE80211_CHAN_RADAR) {
592 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
593 goto nla_put_failure;
594 if (large) {
595 u32 time;
596
597 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
598
599 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
600 chan->dfs_state))
601 goto nla_put_failure;
602 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
603 time))
604 goto nla_put_failure;
089027e5
JD		 605 if (nla_put_u32(msg,
606 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
607 chan->dfs_cac_ms))
608 goto nla_put_failure;
cdc89b97
JB		 609 }
610 }
5dab3b8a 611
fe1abafd
JB		 612 if (large) {
613 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
614 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
615 goto nla_put_failure;
616 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
617 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
618 goto nla_put_failure;
619 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
620 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
621 goto nla_put_failure;
622 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
623 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
624 goto nla_put_failure;
570dbde1
DS		 625 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
626 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
627 goto nla_put_failure;
628 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
629 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
630 goto nla_put_failure;
ea077c1c
RL		 631 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
632 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
633 goto nla_put_failure;
634 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
636 goto nla_put_failure;
fe1abafd
JB		 637 }
638
9360ffd1
DM		 639 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
640 DBM_TO_MBM(chan->max_power)))
641 goto nla_put_failure;
5dab3b8a
LR		 642
643 return 0;
644
645 nla_put_failure:
646 return -ENOBUFS;
647}
648
55682965
JB		 649/* netlink command implementations */
650
b9454e83
JB		 651struct key_parse {
652 struct key_params p;
653 int idx;
e31b8213 654 int type;
b9454e83 655 bool def, defmgmt;
dbd2fd65 656 bool def_uni, def_multi;
b9454e83
JB		 657};
658
659static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
660{
661 struct nlattr *tb[NL80211_KEY_MAX + 1];
662 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
663 nl80211_key_policy);
664 if (err)
665 return err;
666
667 k->def = !!tb[NL80211_KEY_DEFAULT];
668 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
669
dbd2fd65
JB		 670 if (k->def) {
671 k->def_uni = true;
672 k->def_multi = true;
673 }
674 if (k->defmgmt)
675 k->def_multi = true;
676
b9454e83
JB		 677 if (tb[NL80211_KEY_IDX])
678 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
679
680 if (tb[NL80211_KEY_DATA]) {
681 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
682 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
683 }
684
685 if (tb[NL80211_KEY_SEQ]) {
686 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
687 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
688 }
689
690 if (tb[NL80211_KEY_CIPHER])
691 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
692
e31b8213
JB		 693 if (tb[NL80211_KEY_TYPE]) {
694 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
695 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
696 return -EINVAL;
697 }
698
dbd2fd65
JB		 699 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
700 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 701 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
702 tb[NL80211_KEY_DEFAULT_TYPES],
703 nl80211_key_default_policy);
dbd2fd65
JB		 704 if (err)
705 return err;
706
707 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
708 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
709 }
710
b9454e83
JB		 711 return 0;
712}
713
714static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
715{
716 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
717 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
718 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
719 }
720
721 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
722 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
723 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
724 }
725
726 if (info->attrs[NL80211_ATTR_KEY_IDX])
727 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
728
729 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
730 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
731
732 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
733 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
734
dbd2fd65
JB		 735 if (k->def) {
736 k->def_uni = true;
737 k->def_multi = true;
738 }
739 if (k->defmgmt)
740 k->def_multi = true;
741
e31b8213
JB		 742 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
743 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
744 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
745 return -EINVAL;
746 }
747
dbd2fd65
JB		 748 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
749 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
750 int err = nla_parse_nested(
751 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
752 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
753 nl80211_key_default_policy);
754 if (err)
755 return err;
756
757 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
758 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
759 }
760
b9454e83
JB		 761 return 0;
762}
763
764static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
765{
766 int err;
767
768 memset(k, 0, sizeof(*k));
769 k->idx = -1;
e31b8213 770 k->type = -1;
b9454e83
JB		 771
772 if (info->attrs[NL80211_ATTR_KEY])
773 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
774 else
775 err = nl80211_parse_key_old(info, k);
776
777 if (err)
778 return err;
779
780 if (k->def && k->defmgmt)
781 return -EINVAL;
782
dbd2fd65
JB		 783 if (k->defmgmt) {
784 if (k->def_uni || !k->def_multi)
785 return -EINVAL;
786 }
787
b9454e83
JB		 788 if (k->idx != -1) {
789 if (k->defmgmt) {
790 if (k->idx < 4 || k->idx > 5)
791 return -EINVAL;
792 } else if (k->def) {
793 if (k->idx < 0 || k->idx > 3)
794 return -EINVAL;
795 } else {
796 if (k->idx < 0 || k->idx > 5)
797 return -EINVAL;
798 }
799 }
800
801 return 0;
802}
803
fffd0934
JB		 804static struct cfg80211_cached_keys *
805nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 806 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 807{
808 struct key_parse parse;
809 struct nlattr *key;
810 struct cfg80211_cached_keys *result;
811 int rem, err, def = 0;
812
813 result = kzalloc(sizeof(*result), GFP_KERNEL);
814 if (!result)
815 return ERR_PTR(-ENOMEM);
816
817 result->def = -1;
818 result->defmgmt = -1;
819
820 nla_for_each_nested(key, keys, rem) {
821 memset(&parse, 0, sizeof(parse));
822 parse.idx = -1;
823
824 err = nl80211_parse_key_new(key, &parse);
825 if (err)
826 goto error;
827 err = -EINVAL;
828 if (!parse.p.key)
829 goto error;
830 if (parse.idx < 0 || parse.idx > 4)
831 goto error;
832 if (parse.def) {
833 if (def)
834 goto error;
835 def = 1;
836 result->def = parse.idx;
dbd2fd65
JB		 837 if (!parse.def_uni || !parse.def_multi)
838 goto error;
fffd0934
JB		 839 } else if (parse.defmgmt)
840 goto error;
841 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 842 parse.idx, false, NULL);
fffd0934
JB		 843 if (err)
844 goto error;
845 result->params[parse.idx].cipher = parse.p.cipher;
846 result->params[parse.idx].key_len = parse.p.key_len;
847 result->params[parse.idx].key = result->data[parse.idx];
848 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 849
850 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
851 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
852 if (no_ht)
853 *no_ht = true;
854 }
fffd0934
JB		 855 }
856
857 return result;
858 error:
859 kfree(result);
860 return ERR_PTR(err);
861}
862
863static int nl80211_key_allowed(struct wireless_dev *wdev)
864{
865 ASSERT_WDEV_LOCK(wdev);
866
fffd0934
JB		 867 switch (wdev->iftype) {
868 case NL80211_IFTYPE_AP:
869 case NL80211_IFTYPE_AP_VLAN:
074ac8df 870 case NL80211_IFTYPE_P2P_GO:
ff973af7 871 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 872 break;
873 case NL80211_IFTYPE_ADHOC:
fffd0934 874 case NL80211_IFTYPE_STATION:
074ac8df 875 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 876 if (!wdev->current_bss)
fffd0934
JB		 877 return -ENOLINK;
878 break;
879 default:
880 return -EINVAL;
881 }
882
883 return 0;
884}
885
664834de
JM		 886static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
887 struct nlattr *tb)
888{
889 struct ieee80211_channel *chan;
890
891 if (tb == NULL)
892 return NULL;
893 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
894 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
895 return NULL;
896 return chan;
897}
898
7527a782
JB		 899static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
900{
901 struct nlattr *nl_modes = nla_nest_start(msg, attr);
902 int i;
903
904 if (!nl_modes)
905 goto nla_put_failure;
906
907 i = 0;
908 while (ifmodes) {
9360ffd1
DM		 909 if ((ifmodes & 1) && nla_put_flag(msg, i))
910 goto nla_put_failure;
7527a782
JB		 911 ifmodes >>= 1;
912 i++;
913 }
914
915 nla_nest_end(msg, nl_modes);
916 return 0;
917
918nla_put_failure:
919 return -ENOBUFS;
920}
921
922static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 923 struct sk_buff *msg,
924 bool large)
7527a782
JB		 925{
926 struct nlattr *nl_combis;
927 int i, j;
928
929 nl_combis = nla_nest_start(msg,
930 NL80211_ATTR_INTERFACE_COMBINATIONS);
931 if (!nl_combis)
932 goto nla_put_failure;
933
934 for (i = 0; i < wiphy->n_iface_combinations; i++) {
935 const struct ieee80211_iface_combination *c;
936 struct nlattr *nl_combi, *nl_limits;
937
938 c = &wiphy->iface_combinations[i];
939
940 nl_combi = nla_nest_start(msg, i + 1);
941 if (!nl_combi)
942 goto nla_put_failure;
943
944 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
945 if (!nl_limits)
946 goto nla_put_failure;
947
948 for (j = 0; j < c->n_limits; j++) {
949 struct nlattr *nl_limit;
950
951 nl_limit = nla_nest_start(msg, j + 1);
952 if (!nl_limit)
953 goto nla_put_failure;
9360ffd1
DM		 954 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
955 c->limits[j].max))
956 goto nla_put_failure;
7527a782
JB		 957 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
958 c->limits[j].types))
959 goto nla_put_failure;
960 nla_nest_end(msg, nl_limit);
961 }
962
963 nla_nest_end(msg, nl_limits);
964
9360ffd1
DM		 965 if (c->beacon_int_infra_match &&
966 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
967 goto nla_put_failure;
968 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
969 c->num_different_channels) ||
970 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
971 c->max_interfaces))
972 goto nla_put_failure;
cdc89b97 973 if (large &&
8c48b50a
FF		 974 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
975 c->radar_detect_widths) ||
976 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
977 c->radar_detect_regions)))
cdc89b97 978 goto nla_put_failure;
7527a782
JB		 979
980 nla_nest_end(msg, nl_combi);
981 }
982
983 nla_nest_end(msg, nl_combis);
984
985 return 0;
986nla_put_failure:
987 return -ENOBUFS;
988}
989
3713b4e3 990#ifdef CONFIG_PM
b56cf720
JB		 991static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
992 struct sk_buff *msg)
993{
964dc9e2 994 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 995 struct nlattr *nl_tcp;
996
997 if (!tcp)
998 return 0;
999
1000 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1001 if (!nl_tcp)
1002 return -ENOBUFS;
1003
1004 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1005 tcp->data_payload_max))
1006 return -ENOBUFS;
1007
1008 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1009 tcp->data_payload_max))
1010 return -ENOBUFS;
1011
1012 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1013 return -ENOBUFS;
1014
1015 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1016 sizeof(*tcp->tok), tcp->tok))
1017 return -ENOBUFS;
1018
1019 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1020 tcp->data_interval_max))
1021 return -ENOBUFS;
1022
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1024 tcp->wake_payload_max))
1025 return -ENOBUFS;
1026
1027 nla_nest_end(msg, nl_tcp);
1028 return 0;
1029}
1030
3713b4e3 1031static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1032 struct cfg80211_registered_device *rdev,
b56cf720 1033 bool large)
55682965 1034{
3713b4e3 1035 struct nlattr *nl_wowlan;
55682965 1036
1b8ec87a 1037 if (!rdev->wiphy.wowlan)
3713b4e3 1038 return 0;
55682965 1039
3713b4e3
JB		 1040 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1041 if (!nl_wowlan)
1042 return -ENOBUFS;
9360ffd1 1043
1b8ec87a 1044 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1045 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1046 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1047 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1048 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1049 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1050 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1051 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1052 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1060 return -ENOBUFS;
9360ffd1 1061
1b8ec87a 1062 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1063 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1064 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1065 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1066 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1067 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1068 };
9360ffd1 1069
3713b4e3
JB		 1070 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1071 sizeof(pat), &pat))
1072 return -ENOBUFS;
1073 }
9360ffd1 1074
1b8ec87a 1075 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1076 return -ENOBUFS;
1077
3713b4e3 1078 nla_nest_end(msg, nl_wowlan);
9360ffd1 1079
3713b4e3
JB		 1080 return 0;
1081}
1082#endif
9360ffd1 1083
be29b99a 1084static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1085 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1086{
1087 struct nl80211_coalesce_rule_support rule;
1088
1b8ec87a 1089 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1090 return 0;
1091
1b8ec87a
ZG		 1092 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1093 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1094 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1095 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1096 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1097 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1098
1099 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1100 return -ENOBUFS;
1101
1102 return 0;
1103}
1104
3713b4e3
JB		 1105static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1106 struct ieee80211_supported_band *sband)
1107{
1108 struct nlattr *nl_rates, *nl_rate;
1109 struct ieee80211_rate *rate;
1110 int i;
87bbbe22 1111
3713b4e3
JB		 1112 /* add HT info */
1113 if (sband->ht_cap.ht_supported &&
1114 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1115 sizeof(sband->ht_cap.mcs),
1116 &sband->ht_cap.mcs) ||
1117 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1118 sband->ht_cap.cap) ||
1119 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1120 sband->ht_cap.ampdu_factor) ||
1121 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1122 sband->ht_cap.ampdu_density)))
1123 return -ENOBUFS;
afe0cbf8 1124
3713b4e3
JB		 1125 /* add VHT info */
1126 if (sband->vht_cap.vht_supported &&
1127 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1128 sizeof(sband->vht_cap.vht_mcs),
1129 &sband->vht_cap.vht_mcs) ||
1130 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1131 sband->vht_cap.cap)))
1132 return -ENOBUFS;
f59ac048 1133
3713b4e3
JB		 1134 /* add bitrates */
1135 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1136 if (!nl_rates)
1137 return -ENOBUFS;
ee688b00 1138
3713b4e3
JB		 1139 for (i = 0; i < sband->n_bitrates; i++) {
1140 nl_rate = nla_nest_start(msg, i);
1141 if (!nl_rate)
1142 return -ENOBUFS;
ee688b00 1143
3713b4e3
JB		 1144 rate = &sband->bitrates[i];
1145 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1146 rate->bitrate))
1147 return -ENOBUFS;
1148 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1149 nla_put_flag(msg,
1150 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1151 return -ENOBUFS;
ee688b00 1152
3713b4e3
JB		 1153 nla_nest_end(msg, nl_rate);
1154 }
d51626df 1155
3713b4e3 1156 nla_nest_end(msg, nl_rates);
bf0c111e 1157
3713b4e3
JB		 1158 return 0;
1159}
ee688b00 1160
3713b4e3
JB		 1161static int
1162nl80211_send_mgmt_stypes(struct sk_buff *msg,
1163 const struct ieee80211_txrx_stypes *mgmt_stypes)
1164{
1165 u16 stypes;
1166 struct nlattr *nl_ftypes, *nl_ifs;
1167 enum nl80211_iftype ift;
1168 int i;
ee688b00 1169
3713b4e3
JB		 1170 if (!mgmt_stypes)
1171 return 0;
5dab3b8a 1172
3713b4e3
JB		 1173 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1174 if (!nl_ifs)
1175 return -ENOBUFS;
e2f367f2 1176
3713b4e3
JB		 1177 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1178 nl_ftypes = nla_nest_start(msg, ift);
1179 if (!nl_ftypes)
1180 return -ENOBUFS;
1181 i = 0;
1182 stypes = mgmt_stypes[ift].tx;
1183 while (stypes) {
1184 if ((stypes & 1) &&
1185 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1186 (i << 4) | IEEE80211_FTYPE_MGMT))
1187 return -ENOBUFS;
1188 stypes >>= 1;
1189 i++;
ee688b00 1190 }
3713b4e3
JB		 1191 nla_nest_end(msg, nl_ftypes);
1192 }
ee688b00 1193
3713b4e3 1194 nla_nest_end(msg, nl_ifs);
ee688b00 1195
3713b4e3
JB		 1196 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1197 if (!nl_ifs)
1198 return -ENOBUFS;
ee688b00 1199
3713b4e3
JB		 1200 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1201 nl_ftypes = nla_nest_start(msg, ift);
1202 if (!nl_ftypes)
1203 return -ENOBUFS;
1204 i = 0;
1205 stypes = mgmt_stypes[ift].rx;
1206 while (stypes) {
1207 if ((stypes & 1) &&
1208 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1209 (i << 4) | IEEE80211_FTYPE_MGMT))
1210 return -ENOBUFS;
1211 stypes >>= 1;
1212 i++;
1213 }
1214 nla_nest_end(msg, nl_ftypes);
1215 }
1216 nla_nest_end(msg, nl_ifs);
ee688b00 1217
3713b4e3
JB		 1218 return 0;
1219}
ee688b00 1220
86e8cf98
JB		 1221struct nl80211_dump_wiphy_state {
1222 s64 filter_wiphy;
1223 long start;
1224 long split_start, band_start, chan_start;
1225 bool split;
1226};
1227
1b8ec87a 1228static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1229 enum nl80211_commands cmd,
3713b4e3 1230 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1231 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1232{
1233 void *hdr;
1234 struct nlattr *nl_bands, *nl_band;
1235 struct nlattr *nl_freqs, *nl_freq;
1236 struct nlattr *nl_cmds;
1237 enum ieee80211_band band;
1238 struct ieee80211_channel *chan;
1239 int i;
1240 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1241 rdev->wiphy.mgmt_stypes;
fe1abafd 1242 u32 features;
ee688b00 1243
3bb20556 1244 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1245 if (!hdr)
1246 return -ENOBUFS;
ee688b00 1247
86e8cf98
JB		 1248 if (WARN_ON(!state))
1249 return -EINVAL;
ee688b00 1250
1b8ec87a 1251 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1252 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1253 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1254 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1255 cfg80211_rdev_list_generation))
8fdc621d
JB		 1256 goto nla_put_failure;
1257
3bb20556
JB		 1258 if (cmd != NL80211_CMD_NEW_WIPHY)
1259 goto finish;
1260
86e8cf98 1261 switch (state->split_start) {
3713b4e3
JB		 1262 case 0:
1263 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1264 rdev->wiphy.retry_short) ||
3713b4e3 1265 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1266 rdev->wiphy.retry_long) ||
3713b4e3 1267 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1268 rdev->wiphy.frag_threshold) ||
3713b4e3 1269 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1270 rdev->wiphy.rts_threshold) ||
3713b4e3 1271 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1272 rdev->wiphy.coverage_class) ||
3713b4e3 1273 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1274 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1275 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1276 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1277 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1278 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1279 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1280 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1281 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1282 rdev->wiphy.max_match_sets))
9360ffd1 1283 goto nla_put_failure;
3713b4e3 1284
1b8ec87a 1285 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1286 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1287 goto nla_put_failure;
1b8ec87a 1288 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1289 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1290 goto nla_put_failure;
1b8ec87a 1291 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1292 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1293 goto nla_put_failure;
1b8ec87a 1294 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1295 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1296 goto nla_put_failure;
1b8ec87a 1297 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1298 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1299 goto nla_put_failure;
1b8ec87a 1300 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1301 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1302 goto nla_put_failure;
86e8cf98
JB		 1303 state->split_start++;
1304 if (state->split)
3713b4e3
JB		 1305 break;
1306 case 1:
1307 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1308 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1309 rdev->wiphy.cipher_suites))
3713b4e3 1310 goto nla_put_failure;
4745fc09 1311
3713b4e3 1312 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1313 rdev->wiphy.max_num_pmkids))
3713b4e3 1314 goto nla_put_failure;
b23aa676 1315
1b8ec87a 1316 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1317 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1318 goto nla_put_failure;
b23aa676 1319
3713b4e3 1320 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1321 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1322 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1323 rdev->wiphy.available_antennas_rx))
9360ffd1 1324 goto nla_put_failure;
b23aa676 1325
1b8ec87a 1326 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1327 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1328 rdev->wiphy.probe_resp_offload))
3713b4e3 1329 goto nla_put_failure;
8fdc621d 1330
1b8ec87a
ZG		 1331 if ((rdev->wiphy.available_antennas_tx ||
1332 rdev->wiphy.available_antennas_rx) &&
1333 rdev->ops->get_antenna) {
3713b4e3
JB		 1334 u32 tx_ant = 0, rx_ant = 0;
1335 int res;
1b8ec87a 1336 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1337 if (!res) {
1338 if (nla_put_u32(msg,
1339 NL80211_ATTR_WIPHY_ANTENNA_TX,
1340 tx_ant) ||
1341 nla_put_u32(msg,
1342 NL80211_ATTR_WIPHY_ANTENNA_RX,
1343 rx_ant))
1344 goto nla_put_failure;
1345 }
1346 }
a293911d 1347
86e8cf98
JB		 1348 state->split_start++;
1349 if (state->split)
3713b4e3
JB		 1350 break;
1351 case 2:
1352 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1353 rdev->wiphy.interface_modes))
3713b4e3 1354 goto nla_put_failure;
86e8cf98
JB		 1355 state->split_start++;
1356 if (state->split)
3713b4e3
JB		 1357 break;
1358 case 3:
1359 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1360 if (!nl_bands)
1361 goto nla_put_failure;
f7ca38df 1362
86e8cf98
JB		 1363 for (band = state->band_start;
1364 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1365 struct ieee80211_supported_band *sband;
2e161f78 1366
1b8ec87a 1367 sband = rdev->wiphy.bands[band];
2e161f78 1368
3713b4e3
JB		 1369 if (!sband)
1370 continue;
1371
1372 nl_band = nla_nest_start(msg, band);
1373 if (!nl_band)
2e161f78 1374 goto nla_put_failure;
3713b4e3 1375
86e8cf98 1376 switch (state->chan_start) {
3713b4e3
JB		 1377 case 0:
1378 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1379 goto nla_put_failure;
86e8cf98
JB		 1380 state->chan_start++;
1381 if (state->split)
3713b4e3
JB		 1382 break;
1383 default:
1384 /* add frequencies */
1385 nl_freqs = nla_nest_start(
1386 msg, NL80211_BAND_ATTR_FREQS);
1387 if (!nl_freqs)
1388 goto nla_put_failure;
1389
86e8cf98 1390 for (i = state->chan_start - 1;
3713b4e3
JB		 1391 i < sband->n_channels;
1392 i++) {
1393 nl_freq = nla_nest_start(msg, i);
1394 if (!nl_freq)
1395 goto nla_put_failure;
1396
1397 chan = &sband->channels[i];
1398
86e8cf98
JB		 1399 if (nl80211_msg_put_channel(
1400 msg, chan,
1401 state->split))
3713b4e3
JB		 1402 goto nla_put_failure;
1403
1404 nla_nest_end(msg, nl_freq);
86e8cf98 1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 }
1408 if (i < sband->n_channels)
86e8cf98 1409 state->chan_start = i + 2;
3713b4e3 1410 else
86e8cf98 1411 state->chan_start = 0;
3713b4e3
JB		 1412 nla_nest_end(msg, nl_freqs);
1413 }
1414
1415 nla_nest_end(msg, nl_band);
1416
86e8cf98 1417 if (state->split) {
3713b4e3 1418 /* start again here */
86e8cf98 1419 if (state->chan_start)
3713b4e3
JB		 1420 band--;
1421 break;
2e161f78 1422 }
2e161f78 1423 }
3713b4e3 1424 nla_nest_end(msg, nl_bands);
2e161f78 1425
3713b4e3 1426 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1427 state->band_start = band + 1;
3713b4e3 1428 else
86e8cf98 1429 state->band_start = 0;
74b70a4e 1430
3713b4e3 1431 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1432 if (state->band_start == 0 && state->chan_start == 0)
1433 state->split_start++;
1434 if (state->split)
3713b4e3
JB		 1435 break;
1436 case 4:
1437 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1438 if (!nl_cmds)
2e161f78
JB		 1439 goto nla_put_failure;
1440
3713b4e3
JB		 1441 i = 0;
1442#define CMD(op, n) \
1443 do { \
1b8ec87a 1444 if (rdev->ops->op) { \
3713b4e3
JB		 1445 i++; \
1446 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1447 goto nla_put_failure; \
1448 } \
1449 } while (0)
1450
1451 CMD(add_virtual_intf, NEW_INTERFACE);
1452 CMD(change_virtual_intf, SET_INTERFACE);
1453 CMD(add_key, NEW_KEY);
1454 CMD(start_ap, START_AP);
1455 CMD(add_station, NEW_STATION);
1456 CMD(add_mpath, NEW_MPATH);
1457 CMD(update_mesh_config, SET_MESH_CONFIG);
1458 CMD(change_bss, SET_BSS);
1459 CMD(auth, AUTHENTICATE);
1460 CMD(assoc, ASSOCIATE);
1461 CMD(deauth, DEAUTHENTICATE);
1462 CMD(disassoc, DISASSOCIATE);
1463 CMD(join_ibss, JOIN_IBSS);
1464 CMD(join_mesh, JOIN_MESH);
1465 CMD(set_pmksa, SET_PMKSA);
1466 CMD(del_pmksa, DEL_PMKSA);
1467 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1468 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1469 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1470 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1471 CMD(mgmt_tx, FRAME);
1472 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1473 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1474 i++;
1475 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1476 goto nla_put_failure;
2e161f78 1477 }
1b8ec87a
ZG		 1478 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1479 rdev->ops->join_mesh) {
3713b4e3
JB		 1480 i++;
1481 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1482 goto nla_put_failure;
1483 }
1484 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1485 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1486 CMD(tdls_mgmt, TDLS_MGMT);
1487 CMD(tdls_oper, TDLS_OPER);
1488 }
1b8ec87a 1489 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1490 CMD(sched_scan_start, START_SCHED_SCAN);
1491 CMD(probe_client, PROBE_CLIENT);
1492 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1493 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1494 i++;
1495 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1496 goto nla_put_failure;
1497 }
1498 CMD(start_p2p_device, START_P2P_DEVICE);
1499 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1500#ifdef CONFIG_NL80211_TESTMODE
1501 CMD(testmode_cmd, TESTMODE);
1502#endif
86e8cf98 1503 if (state->split) {
5de17984
AS		 1504 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1505 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1506 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1507 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1508 CMD(set_qos_map, SET_QOS_MAP);
5de17984 1509 }
02df00eb 1510 /* add into the if now */
3713b4e3 1511#undef CMD
ff1b6e69 1512
1b8ec87a 1513 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1514 i++;
1515 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1516 goto nla_put_failure;
ff1b6e69
JB		 1517 }
1518
1b8ec87a 1519 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1520 i++;
1521 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1522 goto nla_put_failure;
1523 }
1524
1525 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1526 state->split_start++;
1527 if (state->split)
3713b4e3
JB		 1528 break;
1529 case 5:
1b8ec87a
ZG		 1530 if (rdev->ops->remain_on_channel &&
1531 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1532 nla_put_u32(msg,
1533 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1534 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1535 goto nla_put_failure;
1536
1b8ec87a 1537 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1538 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1539 goto nla_put_failure;
1540
1541 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1542 goto nla_put_failure;
86e8cf98
JB		 1543 state->split_start++;
1544 if (state->split)
3713b4e3
JB		 1545 break;
1546 case 6:
1547#ifdef CONFIG_PM
1b8ec87a 1548 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1549 goto nla_put_failure;
86e8cf98
JB		 1550 state->split_start++;
1551 if (state->split)
3713b4e3
JB		 1552 break;
1553#else
86e8cf98 1554 state->split_start++;
dfb89c56 1555#endif
3713b4e3
JB		 1556 case 7:
1557 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1558 rdev->wiphy.software_iftypes))
3713b4e3 1559 goto nla_put_failure;
ff1b6e69 1560
1b8ec87a 1561 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1562 state->split))
3713b4e3 1563 goto nla_put_failure;
7527a782 1564
86e8cf98
JB		 1565 state->split_start++;
1566 if (state->split)
3713b4e3
JB		 1567 break;
1568 case 8:
1b8ec87a 1569 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1570 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1571 rdev->wiphy.ap_sme_capa))
3713b4e3 1572 goto nla_put_failure;
7527a782 1573
1b8ec87a 1574 features = rdev->wiphy.features;
fe1abafd
JB		 1575 /*
1576 * We can only add the per-channel limit information if the
1577 * dump is split, otherwise it makes it too big. Therefore
1578 * only advertise it in that case.
1579 */
86e8cf98 1580 if (state->split)
fe1abafd
JB		 1581 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1582 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1583 goto nla_put_failure;
562a7480 1584
1b8ec87a 1585 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1586 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1587 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1588 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1589 goto nla_put_failure;
1f074bd8 1590
1b8ec87a
ZG		 1591 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1592 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1593 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1594 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1595 goto nla_put_failure;
7e7c8926 1596
3713b4e3
JB		 1597 /*
1598 * Any information below this point is only available to
1599 * applications that can deal with it being split. This
1600 * helps ensure that newly added capabilities don't break
1601 * older tools by overrunning their buffers.
1602 *
1603 * We still increment split_start so that in the split
1604 * case we'll continue with more data in the next round,
1605 * but break unconditionally so unsplit data stops here.
1606 */
86e8cf98 1607 state->split_start++;
3713b4e3
JB		 1608 break;
1609 case 9:
1b8ec87a 1610 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1611 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1612 rdev->wiphy.extended_capabilities_len,
1613 rdev->wiphy.extended_capabilities) ||
fe1abafd 1614 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1615 rdev->wiphy.extended_capabilities_len,
1616 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1617 goto nla_put_failure;
a50df0c4 1618
1b8ec87a 1619 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1620 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1621 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1622 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1623 goto nla_put_failure;
1624
be29b99a
AK		 1625 state->split_start++;
1626 break;
1627 case 10:
1b8ec87a 1628 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1629 goto nla_put_failure;
1630
1b8ec87a 1631 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1632 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1633 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1634 goto nla_put_failure;
b43504cf 1635
1b8ec87a 1636 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1637 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1638 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1639 goto nla_put_failure;
1640
ad7e718c
JB		 1641 state->split_start++;
1642 break;
1643 case 11:
1b8ec87a 1644 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1645 const struct nl80211_vendor_cmd_info *info;
1646 struct nlattr *nested;
1647
1648 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1649 if (!nested)
1650 goto nla_put_failure;
1651
1b8ec87a
ZG		 1652 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1653 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1654 if (nla_put(msg, i + 1, sizeof(*info), info))
1655 goto nla_put_failure;
1656 }
1657 nla_nest_end(msg, nested);
1658 }
1659
1b8ec87a 1660 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1661 const struct nl80211_vendor_cmd_info *info;
1662 struct nlattr *nested;
ad7e718c 1663
567ffc35
JB		 1664 nested = nla_nest_start(msg,
1665 NL80211_ATTR_VENDOR_EVENTS);
1666 if (!nested)
ad7e718c 1667 goto nla_put_failure;
567ffc35 1668
1b8ec87a
ZG		 1669 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1670 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1671 if (nla_put(msg, i + 1, sizeof(*info), info))
1672 goto nla_put_failure;
1673 }
1674 nla_nest_end(msg, nested);
1675 }
9a774c78
AO		 1676 state->split_start++;
1677 break;
1678 case 12:
1679 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1680 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1681 rdev->wiphy.max_num_csa_counters))
1682 goto nla_put_failure;
01e0daa4 1683
3713b4e3 1684 /* done */
86e8cf98 1685 state->split_start = 0;
3713b4e3
JB		 1686 break;
1687 }
3bb20556 1688 finish:
55682965
JB		 1689 return genlmsg_end(msg, hdr);
1690
1691 nla_put_failure:
bc3ed28c
TG		 1692 genlmsg_cancel(msg, hdr);
1693 return -EMSGSIZE;
55682965
JB		 1694}
1695
86e8cf98
JB		 1696static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1697 struct netlink_callback *cb,
1698 struct nl80211_dump_wiphy_state *state)
1699{
1700 struct nlattr **tb = nl80211_fam.attrbuf;
1701 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1702 tb, nl80211_fam.maxattr, nl80211_policy);
1703 /* ignore parse errors for backward compatibility */
1704 if (ret)
1705 return 0;
1706
1707 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1708 if (tb[NL80211_ATTR_WIPHY])
1709 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1710 if (tb[NL80211_ATTR_WDEV])
1711 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1712 if (tb[NL80211_ATTR_IFINDEX]) {
1713 struct net_device *netdev;
1714 struct cfg80211_registered_device *rdev;
1715 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1716
7f2b8562 1717 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1718 if (!netdev)
1719 return -ENODEV;
1720 if (netdev->ieee80211_ptr) {
f26cbf40 1721 rdev = wiphy_to_rdev(
86e8cf98
JB		 1722 netdev->ieee80211_ptr->wiphy);
1723 state->filter_wiphy = rdev->wiphy_idx;
1724 }
86e8cf98
JB		 1725 }
1726
1727 return 0;
1728}
1729
55682965
JB		 1730static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1731{
645e77de 1732 int idx = 0, ret;
86e8cf98 1733 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1734 struct cfg80211_registered_device *rdev;
3a5a423b 1735
5fe231e8 1736 rtnl_lock();
86e8cf98
JB		 1737 if (!state) {
1738 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1739 if (!state) {
1740 rtnl_unlock();
86e8cf98 1741 return -ENOMEM;
3713b4e3 1742 }
86e8cf98
JB		 1743 state->filter_wiphy = -1;
1744 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1745 if (ret) {
1746 kfree(state);
1747 rtnl_unlock();
1748 return ret;
3713b4e3 1749 }
86e8cf98 1750 cb->args[0] = (long)state;
3713b4e3
JB		 1751 }
1752
1b8ec87a
ZG		 1753 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1754 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1755 continue;
86e8cf98 1756 if (++idx <= state->start)
55682965 1757 continue;
86e8cf98 1758 if (state->filter_wiphy != -1 &&
1b8ec87a 1759 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1760 continue;
1761 /* attempt to fit multiple wiphy data chunks into the skb */
1762 do {
3bb20556
JB		 1763 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1764 skb,
3713b4e3
JB		 1765 NETLINK_CB(cb->skb).portid,
1766 cb->nlh->nlmsg_seq,
86e8cf98 1767 NLM_F_MULTI, state);
3713b4e3
JB		 1768 if (ret < 0) {
1769 /*
1770 * If sending the wiphy data didn't fit (ENOBUFS
1771 * or EMSGSIZE returned), this SKB is still
1772 * empty (so it's not too big because another
1773 * wiphy dataset is already in the skb) and
1774 * we've not tried to adjust the dump allocation
1775 * yet ... then adjust the alloc size to be
1776 * bigger, and return 1 but with the empty skb.
1777 * This results in an empty message being RX'ed
1778 * in userspace, but that is ignored.
1779 *
1780 * We can then retry with the larger buffer.
1781 */
1782 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1783 !skb->len && !state->split &&
3713b4e3
JB		 1784 cb->min_dump_alloc < 4096) {
1785 cb->min_dump_alloc = 4096;
f12cb289 1786 state->split_start = 0;
d98cae64 1787 rtnl_unlock();
3713b4e3
JB		 1788 return 1;
1789 }
1790 idx--;
1791 break;
645e77de 1792 }
86e8cf98 1793 } while (state->split_start > 0);
3713b4e3 1794 break;
55682965 1795 }
5fe231e8 1796 rtnl_unlock();
55682965 1797
86e8cf98 1798 state->start = idx;
55682965
JB		 1799
1800 return skb->len;
1801}
1802
86e8cf98
JB		 1803static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1804{
1805 kfree((void *)cb->args[0]);
1806 return 0;
1807}
1808
55682965
JB		 1809static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1810{
1811 struct sk_buff *msg;
1b8ec87a 1812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1813 struct nl80211_dump_wiphy_state state = {};
55682965 1814
645e77de 1815 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1816 if (!msg)
4c476991 1817 return -ENOMEM;
55682965 1818
3bb20556
JB		 1819 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1820 info->snd_portid, info->snd_seq, 0,
86e8cf98 1821 &state) < 0) {
4c476991
JB		 1822 nlmsg_free(msg);
1823 return -ENOBUFS;
1824 }
55682965 1825
134e6375 1826 return genlmsg_reply(msg, info);
55682965
JB		 1827}
1828
31888487
JM		 1829static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1830 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1831 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1832 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1833 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1834 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1835};
1836
1837static int parse_txq_params(struct nlattr *tb[],
1838 struct ieee80211_txq_params *txq_params)
1839{
a3304b0a 1840 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1841 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1842 !tb[NL80211_TXQ_ATTR_AIFS])
1843 return -EINVAL;
1844
a3304b0a 1845 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1846 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1847 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1848 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1849 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1850
a3304b0a
JB		 1851 if (txq_params->ac >= NL80211_NUM_ACS)
1852 return -EINVAL;
1853
31888487
JM		 1854 return 0;
1855}
1856
f444de05
JB		 1857static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1858{
1859 /*
cc1d2806
JB		 1860 * You can only set the channel explicitly for WDS interfaces,
1861 * all others have their channel managed via their respective
1862 * "establish a connection" command (connect, join, ...)
1863 *
1864 * For AP/GO and mesh mode, the channel can be set with the
1865 * channel userspace API, but is only stored and passed to the
1866 * low-level driver when the AP starts or the mesh is joined.
1867 * This is for backward compatibility, userspace can also give
1868 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1869 *
1870 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1871 * whatever else is going on, so they have their own special
1872 * operation to set the monitor channel if possible.
f444de05
JB		 1873 */
1874 return !wdev ||
1875 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1876 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1877 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1878 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1879}
1880
683b6d3b
JB		 1881static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1882 struct genl_info *info,
1883 struct cfg80211_chan_def *chandef)
1884{
dbeca2ea 1885 u32 control_freq;
683b6d3b
JB		 1886
1887 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1888 return -EINVAL;
1889
1890 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1891
1892 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1893 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1894 chandef->center_freq1 = control_freq;
1895 chandef->center_freq2 = 0;
683b6d3b
JB		 1896
1897 /* Primary channel not allowed */
1898 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1899 return -EINVAL;
1900
3d9d1d66
JB		 1901 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1902 enum nl80211_channel_type chantype;
1903
1904 chantype = nla_get_u32(
1905 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1906
1907 switch (chantype) {
1908 case NL80211_CHAN_NO_HT:
1909 case NL80211_CHAN_HT20:
1910 case NL80211_CHAN_HT40PLUS:
1911 case NL80211_CHAN_HT40MINUS:
1912 cfg80211_chandef_create(chandef, chandef->chan,
1913 chantype);
1914 break;
1915 default:
1916 return -EINVAL;
1917 }
1918 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1919 chandef->width =
1920 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1921 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1922 chandef->center_freq1 =
1923 nla_get_u32(
1924 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1925 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1926 chandef->center_freq2 =
1927 nla_get_u32(
1928 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1929 }
1930
9f5e8f6e 1931 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1932 return -EINVAL;
1933
9f5e8f6e
JB		 1934 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1935 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1936 return -EINVAL;
1937
2f301ab2
SW		 1938 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1939 chandef->width == NL80211_CHAN_WIDTH_10) &&
1940 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1941 return -EINVAL;
1942
683b6d3b
JB		 1943 return 0;
1944}
1945
f444de05 1946static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1947 struct net_device *dev,
f444de05
JB		 1948 struct genl_info *info)
1949{
683b6d3b 1950 struct cfg80211_chan_def chandef;
f444de05 1951 int result;
e8c9bd5b 1952 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1953 struct wireless_dev *wdev = NULL;
e8c9bd5b 1954
e16821bc
JM		 1955 if (dev)
1956 wdev = dev->ieee80211_ptr;
f444de05
JB		 1957 if (!nl80211_can_set_dev_channel(wdev))
1958 return -EOPNOTSUPP;
e16821bc
JM		 1959 if (wdev)
1960 iftype = wdev->iftype;
f444de05 1961
683b6d3b
JB		 1962 result = nl80211_parse_chandef(rdev, info, &chandef);
1963 if (result)
1964 return result;
f444de05 1965
e8c9bd5b 1966 switch (iftype) {
aa430da4
JB		 1967 case NL80211_IFTYPE_AP:
1968 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1969 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1970 result = -EINVAL;
1971 break;
1972 }
e16821bc
JM		 1973 if (wdev->beacon_interval) {
1974 if (!dev || !rdev->ops->set_ap_chanwidth ||
1975 !(rdev->wiphy.features &
1976 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1977 result = -EBUSY;
1978 break;
1979 }
1980
1981 /* Only allow dynamic channel width changes */
1982 if (chandef.chan != wdev->preset_chandef.chan) {
1983 result = -EBUSY;
1984 break;
1985 }
1986 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1987 if (result)
1988 break;
1989 }
683b6d3b 1990 wdev->preset_chandef = chandef;
aa430da4
JB		 1991 result = 0;
1992 break;
cc1d2806 1993 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1994 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1995 break;
e8c9bd5b 1996 case NL80211_IFTYPE_MONITOR:
683b6d3b 1997 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1998 break;
aa430da4 1999 default:
e8c9bd5b 2000 result = -EINVAL;
f444de05 2001 }
f444de05
JB		 2002
2003 return result;
2004}
2005
2006static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2007{
4c476991
JB		 2008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2009 struct net_device *netdev = info->user_ptr[1];
f444de05 2010
e16821bc 2011 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2012}
2013
e8347eba
BJ		 2014static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2015{
43b19952
JB		 2016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2017 struct net_device *dev = info->user_ptr[1];
2018 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2019 const u8 *bssid;
e8347eba
BJ		 2020
2021 if (!info->attrs[NL80211_ATTR_MAC])
2022 return -EINVAL;
2023
43b19952
JB		 2024 if (netif_running(dev))
2025 return -EBUSY;
e8347eba 2026
43b19952
JB		 2027 if (!rdev->ops->set_wds_peer)
2028 return -EOPNOTSUPP;
e8347eba 2029
43b19952
JB		 2030 if (wdev->iftype != NL80211_IFTYPE_WDS)
2031 return -EOPNOTSUPP;
e8347eba
BJ		 2032
2033 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2034 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2035}
2036
2037
55682965
JB		 2038static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2039{
2040 struct cfg80211_registered_device *rdev;
f444de05
JB		 2041 struct net_device *netdev = NULL;
2042 struct wireless_dev *wdev;
a1e567c8 2043 int result = 0, rem_txq_params = 0;
31888487 2044 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2045 u32 changed;
2046 u8 retry_short = 0, retry_long = 0;
2047 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2048 u8 coverage_class = 0;
55682965 2049
5fe231e8
JB		 2050 ASSERT_RTNL();
2051
f444de05
JB		 2052 /*
2053 * Try to find the wiphy and netdev. Normally this
2054 * function shouldn't need the netdev, but this is
2055 * done for backward compatibility -- previously
2056 * setting the channel was done per wiphy, but now
2057 * it is per netdev. Previous userland like hostapd
2058 * also passed a netdev to set_wiphy, so that it is
2059 * possible to let that go to the right netdev!
2060 */
4bbf4d56 2061
f444de05
JB		 2062 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2063 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2064
7f2b8562 2065 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2066 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2067 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2068 else
f444de05 2069 netdev = NULL;
4bbf4d56
JB		 2070 }
2071
f444de05 2072 if (!netdev) {
878d9ec7
JB		 2073 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2074 info->attrs);
5fe231e8 2075 if (IS_ERR(rdev))
4c476991 2076 return PTR_ERR(rdev);
f444de05
JB		 2077 wdev = NULL;
2078 netdev = NULL;
2079 result = 0;
71fe96bf 2080 } else
f444de05 2081 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2082
2083 /*
2084 * end workaround code, by now the rdev is available
2085 * and locked, and wdev may or may not be NULL.
2086 */
4bbf4d56
JB		 2087
2088 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2089 result = cfg80211_dev_rename(
2090 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2091
4bbf4d56 2092 if (result)
7f2b8562 2093 return result;
31888487
JM		 2094
2095 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2096 struct ieee80211_txq_params txq_params;
2097 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2098
7f2b8562
YX		 2099 if (!rdev->ops->set_txq_params)
2100 return -EOPNOTSUPP;
31888487 2101
7f2b8562
YX		 2102 if (!netdev)
2103 return -EINVAL;
f70f01c2 2104
133a3ff2 2105 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2106 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2107 return -EINVAL;
133a3ff2 2108
7f2b8562
YX		 2109 if (!netif_running(netdev))
2110 return -ENETDOWN;
2b5f8b0b 2111
31888487
JM		 2112 nla_for_each_nested(nl_txq_params,
2113 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2114 rem_txq_params) {
ae811e21
JB		 2115 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2116 nla_data(nl_txq_params),
2117 nla_len(nl_txq_params),
2118 txq_params_policy);
2119 if (result)
2120 return result;
31888487
JM		 2121 result = parse_txq_params(tb, &txq_params);
2122 if (result)
7f2b8562 2123 return result;
31888487 2124
e35e4d28
HG		 2125 result = rdev_set_txq_params(rdev, netdev,
2126 &txq_params);
31888487 2127 if (result)
7f2b8562 2128 return result;
31888487
JM		 2129 }
2130 }
55682965 2131
72bdcf34 2132 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2133 result = __nl80211_set_channel(
2134 rdev,
2135 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2136 info);
72bdcf34 2137 if (result)
7f2b8562 2138 return result;
72bdcf34
JM		 2139 }
2140
98d2ff8b 2141 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2142 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2143 enum nl80211_tx_power_setting type;
2144 int idx, mbm = 0;
2145
c8442118
JB		 2146 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2147 txp_wdev = NULL;
2148
7f2b8562
YX		 2149 if (!rdev->ops->set_tx_power)
2150 return -EOPNOTSUPP;
98d2ff8b
JO		 2151
2152 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2153 type = nla_get_u32(info->attrs[idx]);
2154
2155 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2156 (type != NL80211_TX_POWER_AUTOMATIC))
2157 return -EINVAL;
98d2ff8b
JO		 2158
2159 if (type != NL80211_TX_POWER_AUTOMATIC) {
2160 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2161 mbm = nla_get_u32(info->attrs[idx]);
2162 }
2163
c8442118 2164 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2165 if (result)
7f2b8562 2166 return result;
98d2ff8b
JO		 2167 }
2168
afe0cbf8
BR		 2169 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2170 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2171 u32 tx_ant, rx_ant;
7f531e03
BR		 2172 if ((!rdev->wiphy.available_antennas_tx &&
2173 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2174 !rdev->ops->set_antenna)
2175 return -EOPNOTSUPP;
afe0cbf8
BR		 2176
2177 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2178 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2179
a7ffac95 2180 /* reject antenna configurations which don't match the
7f531e03
BR		 2181 * available antenna masks, except for the "all" mask */
2182 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2183 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2184 return -EINVAL;
a7ffac95 2185
7f531e03
BR		 2186 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2187 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2188
e35e4d28 2189 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2190 if (result)
7f2b8562 2191 return result;
afe0cbf8
BR		 2192 }
2193
b9a5f8ca
JM		 2194 changed = 0;
2195
2196 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2197 retry_short = nla_get_u8(
2198 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2199 if (retry_short == 0)
2200 return -EINVAL;
2201
b9a5f8ca
JM		 2202 changed |= WIPHY_PARAM_RETRY_SHORT;
2203 }
2204
2205 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2206 retry_long = nla_get_u8(
2207 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2208 if (retry_long == 0)
2209 return -EINVAL;
2210
b9a5f8ca
JM		 2211 changed |= WIPHY_PARAM_RETRY_LONG;
2212 }
2213
2214 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2215 frag_threshold = nla_get_u32(
2216 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2217 if (frag_threshold < 256)
2218 return -EINVAL;
2219
b9a5f8ca
JM		 2220 if (frag_threshold != (u32) -1) {
2221 /*
2222 * Fragments (apart from the last one) are required to
2223 * have even length. Make the fragmentation code
2224 * simpler by stripping LSB should someone try to use
2225 * odd threshold value.
2226 */
2227 frag_threshold &= ~0x1;
2228 }
2229 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2230 }
2231
2232 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2233 rts_threshold = nla_get_u32(
2234 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2235 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2236 }
2237
81077e82
LT		 2238 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2239 coverage_class = nla_get_u8(
2240 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2241 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2242 }
2243
b9a5f8ca
JM		 2244 if (changed) {
2245 u8 old_retry_short, old_retry_long;
2246 u32 old_frag_threshold, old_rts_threshold;
81077e82 2247 u8 old_coverage_class;
b9a5f8ca 2248
7f2b8562
YX		 2249 if (!rdev->ops->set_wiphy_params)
2250 return -EOPNOTSUPP;
b9a5f8ca
JM		 2251
2252 old_retry_short = rdev->wiphy.retry_short;
2253 old_retry_long = rdev->wiphy.retry_long;
2254 old_frag_threshold = rdev->wiphy.frag_threshold;
2255 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2256 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2257
2258 if (changed & WIPHY_PARAM_RETRY_SHORT)
2259 rdev->wiphy.retry_short = retry_short;
2260 if (changed & WIPHY_PARAM_RETRY_LONG)
2261 rdev->wiphy.retry_long = retry_long;
2262 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2263 rdev->wiphy.frag_threshold = frag_threshold;
2264 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2265 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2266 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2267 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2268
e35e4d28 2269 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2270 if (result) {
2271 rdev->wiphy.retry_short = old_retry_short;
2272 rdev->wiphy.retry_long = old_retry_long;
2273 rdev->wiphy.frag_threshold = old_frag_threshold;
2274 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2275 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2276 }
2277 }
7f2b8562 2278 return 0;
55682965
JB		 2279}
2280
71bbc994
JB		 2281static inline u64 wdev_id(struct wireless_dev *wdev)
2282{
2283 return (u64)wdev->identifier |
f26cbf40 2284 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2285}
55682965 2286
683b6d3b 2287static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2288 const struct cfg80211_chan_def *chandef)
683b6d3b 2289{
9f5e8f6e 2290 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2291
683b6d3b
JB		 2292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2293 chandef->chan->center_freq))
2294 return -ENOBUFS;
3d9d1d66
JB		 2295 switch (chandef->width) {
2296 case NL80211_CHAN_WIDTH_20_NOHT:
2297 case NL80211_CHAN_WIDTH_20:
2298 case NL80211_CHAN_WIDTH_40:
2299 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2300 cfg80211_get_chandef_type(chandef)))
2301 return -ENOBUFS;
2302 break;
2303 default:
2304 break;
2305 }
2306 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2307 return -ENOBUFS;
2308 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2309 return -ENOBUFS;
2310 if (chandef->center_freq2 &&
2311 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2312 return -ENOBUFS;
2313 return 0;
2314}
2315
15e47304 2316static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2317 struct cfg80211_registered_device *rdev,
72fb2abc 2318 struct wireless_dev *wdev)
55682965 2319{
72fb2abc 2320 struct net_device *dev = wdev->netdev;
55682965
JB		 2321 void *hdr;
2322
15e47304 2323 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2324 if (!hdr)
2325 return -1;
2326
72fb2abc
JB		 2327 if (dev &&
2328 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2329 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2330 goto nla_put_failure;
2331
2332 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2333 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2334 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2335 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2336 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2337 rdev->devlist_generation ^
2338 (cfg80211_rdev_list_generation << 2)))
2339 goto nla_put_failure;
f5ea9120 2340
5b7ccaf3 2341 if (rdev->ops->get_channel) {
683b6d3b
JB		 2342 int ret;
2343 struct cfg80211_chan_def chandef;
2344
2345 ret = rdev_get_channel(rdev, wdev, &chandef);
2346 if (ret == 0) {
2347 if (nl80211_send_chandef(msg, &chandef))
2348 goto nla_put_failure;
2349 }
d91df0e3
PF		 2350 }
2351
b84e7a05
AQ		 2352 if (wdev->ssid_len) {
2353 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2354 goto nla_put_failure;
2355 }
2356
55682965
JB		 2357 return genlmsg_end(msg, hdr);
2358
2359 nla_put_failure:
bc3ed28c
TG		 2360 genlmsg_cancel(msg, hdr);
2361 return -EMSGSIZE;
55682965
JB		 2362}
2363
2364static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2365{
2366 int wp_idx = 0;
2367 int if_idx = 0;
2368 int wp_start = cb->args[0];
2369 int if_start = cb->args[1];
f5ea9120 2370 struct cfg80211_registered_device *rdev;
55682965
JB		 2371 struct wireless_dev *wdev;
2372
5fe231e8 2373 rtnl_lock();
f5ea9120
JB		 2374 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2375 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2376 continue;
bba95fef
JB		 2377 if (wp_idx < wp_start) {
2378 wp_idx++;
55682965 2379 continue;
bba95fef 2380 }
55682965
JB		 2381 if_idx = 0;
2382
89a54e48 2383 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2384 if (if_idx < if_start) {
2385 if_idx++;
55682965 2386 continue;
bba95fef 2387 }
15e47304 2388 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2389 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2390 rdev, wdev) < 0) {
bba95fef
JB		 2391 goto out;
2392 }
2393 if_idx++;
55682965 2394 }
bba95fef
JB		 2395
2396 wp_idx++;
55682965 2397 }
bba95fef 2398 out:
5fe231e8 2399 rtnl_unlock();
55682965
JB		 2400
2401 cb->args[0] = wp_idx;
2402 cb->args[1] = if_idx;
2403
2404 return skb->len;
2405}
2406
2407static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2408{
2409 struct sk_buff *msg;
1b8ec87a 2410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2411 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2412
fd2120ca 2413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2414 if (!msg)
4c476991 2415 return -ENOMEM;
55682965 2416
15e47304 2417 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2418 rdev, wdev) < 0) {
4c476991
JB		 2419 nlmsg_free(msg);
2420 return -ENOBUFS;
2421 }
55682965 2422
134e6375 2423 return genlmsg_reply(msg, info);
55682965
JB		 2424}
2425
66f7ac50
MW		 2426static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2427 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2428 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2429 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2430 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2431 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2432 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2433};
2434
2435static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2436{
2437 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2438 int flag;
2439
2440 *mntrflags = 0;
2441
2442 if (!nla)
2443 return -EINVAL;
2444
2445 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2446 nla, mntr_flags_policy))
2447 return -EINVAL;
2448
2449 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2450 if (flags[flag])
2451 *mntrflags |= (1<<flag);
2452
2453 return 0;
2454}
2455
9bc383de 2456static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2457 struct net_device *netdev, u8 use_4addr,
2458 enum nl80211_iftype iftype)
9bc383de 2459{
ad4bb6f8 2460 if (!use_4addr) {
f350a0a8 2461 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2462 return -EBUSY;
9bc383de 2463 return 0;
ad4bb6f8 2464 }
9bc383de
JB		 2465
2466 switch (iftype) {
2467 case NL80211_IFTYPE_AP_VLAN:
2468 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2469 return 0;
2470 break;
2471 case NL80211_IFTYPE_STATION:
2472 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2473 return 0;
2474 break;
2475 default:
2476 break;
2477 }
2478
2479 return -EOPNOTSUPP;
2480}
2481
55682965
JB		 2482static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2483{
4c476991 2484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2485 struct vif_params params;
e36d56b6 2486 int err;
04a773ad 2487 enum nl80211_iftype otype, ntype;
4c476991 2488 struct net_device *dev = info->user_ptr[1];
92ffe055 2489 u32 _flags, *flags = NULL;
ac7f9cfa 2490 bool change = false;
55682965 2491
2ec600d6
LCC		 2492 memset(&params, 0, sizeof(params));
2493
04a773ad 2494 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2495
723b038d 2496 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2497 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2498 if (otype != ntype)
ac7f9cfa 2499 change = true;
4c476991
JB		 2500 if (ntype > NL80211_IFTYPE_MAX)
2501 return -EINVAL;
723b038d
JB		 2502 }
2503
92ffe055 2504 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2505 struct wireless_dev *wdev = dev->ieee80211_ptr;
2506
4c476991
JB		 2507 if (ntype != NL80211_IFTYPE_MESH_POINT)
2508 return -EINVAL;
29cbe68c
JB		 2509 if (netif_running(dev))
2510 return -EBUSY;
2511
2512 wdev_lock(wdev);
2513 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2514 IEEE80211_MAX_MESH_ID_LEN);
2515 wdev->mesh_id_up_len =
2516 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2517 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2518 wdev->mesh_id_up_len);
2519 wdev_unlock(wdev);
2ec600d6
LCC		 2520 }
2521
8b787643
FF		 2522 if (info->attrs[NL80211_ATTR_4ADDR]) {
2523 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2524 change = true;
ad4bb6f8 2525 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2526 if (err)
4c476991 2527 return err;
8b787643
FF		 2528 } else {
2529 params.use_4addr = -1;
2530 }
2531
92ffe055 2532 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2533 if (ntype != NL80211_IFTYPE_MONITOR)
2534 return -EINVAL;
92ffe055
JB		 2535 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2536 &_flags);
ac7f9cfa 2537 if (err)
4c476991 2538 return err;
ac7f9cfa
JB		 2539
2540 flags = &_flags;
2541 change = true;
92ffe055 2542 }
3b85875a 2543
18003297 2544 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2545 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2546 return -EOPNOTSUPP;
2547
ac7f9cfa 2548 if (change)
3d54d255 2549 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2550 else
2551 err = 0;
60719ffd 2552
9bc383de
JB		 2553 if (!err && params.use_4addr != -1)
2554 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2555
55682965
JB		 2556 return err;
2557}
2558
2559static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2560{
4c476991 2561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2562 struct vif_params params;
84efbb84 2563 struct wireless_dev *wdev;
1c90f9d4 2564 struct sk_buff *msg;
55682965
JB		 2565 int err;
2566 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2567 u32 flags;
55682965 2568
78f22b6a
JB		 2569 /* to avoid failing a new interface creation due to pending removal */
2570 cfg80211_destroy_ifaces(rdev);
2571
2ec600d6
LCC		 2572 memset(&params, 0, sizeof(params));
2573
55682965
JB		 2574 if (!info->attrs[NL80211_ATTR_IFNAME])
2575 return -EINVAL;
2576
2577 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2578 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2579 if (type > NL80211_IFTYPE_MAX)
2580 return -EINVAL;
2581 }
2582
79c97e97 2583 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2584 !(rdev->wiphy.interface_modes & (1 << type)))
2585 return -EOPNOTSUPP;
55682965 2586
1c18f145
AS		 2587 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2588 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2589 ETH_ALEN);
2590 if (!is_valid_ether_addr(params.macaddr))
2591 return -EADDRNOTAVAIL;
2592 }
2593
9bc383de 2594 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2595 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2596 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2597 if (err)
4c476991 2598 return err;
9bc383de 2599 }
8b787643 2600
1c90f9d4
JB		 2601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2602 if (!msg)
2603 return -ENOMEM;
2604
66f7ac50
MW		 2605 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2606 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2607 &flags);
e057d3c3 2608
18003297 2609 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2610 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2611 return -EOPNOTSUPP;
2612
e35e4d28
HG		 2613 wdev = rdev_add_virtual_intf(rdev,
2614 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2615 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2616 if (IS_ERR(wdev)) {
2617 nlmsg_free(msg);
84efbb84 2618 return PTR_ERR(wdev);
1c90f9d4 2619 }
2ec600d6 2620
78f22b6a
JB		 2621 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2622 wdev->owner_nlportid = info->snd_portid;
2623
98104fde
JB		 2624 switch (type) {
2625 case NL80211_IFTYPE_MESH_POINT:
2626 if (!info->attrs[NL80211_ATTR_MESH_ID])
2627 break;
29cbe68c
JB		 2628 wdev_lock(wdev);
2629 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2630 IEEE80211_MAX_MESH_ID_LEN);
2631 wdev->mesh_id_up_len =
2632 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2633 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2634 wdev->mesh_id_up_len);
2635 wdev_unlock(wdev);
98104fde
JB		 2636 break;
2637 case NL80211_IFTYPE_P2P_DEVICE:
2638 /*
2639 * P2P Device doesn't have a netdev, so doesn't go
2640 * through the netdev notifier and must be added here
2641 */
2642 mutex_init(&wdev->mtx);
2643 INIT_LIST_HEAD(&wdev->event_list);
2644 spin_lock_init(&wdev->event_lock);
2645 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2646 spin_lock_init(&wdev->mgmt_registrations_lock);
2647
98104fde
JB		 2648 wdev->identifier = ++rdev->wdev_id;
2649 list_add_rcu(&wdev->list, &rdev->wdev_list);
2650 rdev->devlist_generation++;
98104fde
JB		 2651 break;
2652 default:
2653 break;
29cbe68c
JB		 2654 }
2655
15e47304 2656 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2657 rdev, wdev) < 0) {
2658 nlmsg_free(msg);
2659 return -ENOBUFS;
2660 }
2661
2662 return genlmsg_reply(msg, info);
55682965
JB		 2663}
2664
2665static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2666{
4c476991 2667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2668 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2669
4c476991
JB		 2670 if (!rdev->ops->del_virtual_intf)
2671 return -EOPNOTSUPP;
55682965 2672
84efbb84
JB		 2673 /*
2674 * If we remove a wireless device without a netdev then clear
2675 * user_ptr[1] so that nl80211_post_doit won't dereference it
2676 * to check if it needs to do dev_put(). Otherwise it crashes
2677 * since the wdev has been freed, unlike with a netdev where
2678 * we need the dev_put() for the netdev to really be freed.
2679 */
2680 if (!wdev->netdev)
2681 info->user_ptr[1] = NULL;
2682
e35e4d28 2683 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2684}
2685
1d9d9213
SW		 2686static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2687{
2688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2689 struct net_device *dev = info->user_ptr[1];
2690 u16 noack_map;
2691
2692 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2693 return -EINVAL;
2694
2695 if (!rdev->ops->set_noack_map)
2696 return -EOPNOTSUPP;
2697
2698 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2699
e35e4d28 2700 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2701}
2702
41ade00f
JB		 2703struct get_key_cookie {
2704 struct sk_buff *msg;
2705 int error;
b9454e83 2706 int idx;
41ade00f
JB		 2707};
2708
2709static void get_key_callback(void *c, struct key_params *params)
2710{
b9454e83 2711 struct nlattr *key;
41ade00f
JB		 2712 struct get_key_cookie *cookie = c;
2713
9360ffd1
DM		 2714 if ((params->key &&
2715 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2716 params->key_len, params->key)) ||
2717 (params->seq &&
2718 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2719 params->seq_len, params->seq)) ||
2720 (params->cipher &&
2721 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2722 params->cipher)))
2723 goto nla_put_failure;
41ade00f 2724
b9454e83
JB		 2725 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2726 if (!key)
2727 goto nla_put_failure;
2728
9360ffd1
DM		 2729 if ((params->key &&
2730 nla_put(cookie->msg, NL80211_KEY_DATA,
2731 params->key_len, params->key)) ||
2732 (params->seq &&
2733 nla_put(cookie->msg, NL80211_KEY_SEQ,
2734 params->seq_len, params->seq)) ||
2735 (params->cipher &&
2736 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2737 params->cipher)))
2738 goto nla_put_failure;
b9454e83 2739
9360ffd1
DM		 2740 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2741 goto nla_put_failure;
b9454e83
JB		 2742
2743 nla_nest_end(cookie->msg, key);
2744
41ade00f
JB		 2745 return;
2746 nla_put_failure:
2747 cookie->error = 1;
2748}
2749
2750static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2751{
4c476991 2752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2753 int err;
4c476991 2754 struct net_device *dev = info->user_ptr[1];
41ade00f 2755 u8 key_idx = 0;
e31b8213
JB		 2756 const u8 *mac_addr = NULL;
2757 bool pairwise;
41ade00f
JB		 2758 struct get_key_cookie cookie = {
2759 .error = 0,
2760 };
2761 void *hdr;
2762 struct sk_buff *msg;
2763
2764 if (info->attrs[NL80211_ATTR_KEY_IDX])
2765 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2766
3cfcf6ac 2767 if (key_idx > 5)
41ade00f
JB		 2768 return -EINVAL;
2769
2770 if (info->attrs[NL80211_ATTR_MAC])
2771 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2772
e31b8213
JB		 2773 pairwise = !!mac_addr;
2774 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2775 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2776 if (kt >= NUM_NL80211_KEYTYPES)
2777 return -EINVAL;
2778 if (kt != NL80211_KEYTYPE_GROUP &&
2779 kt != NL80211_KEYTYPE_PAIRWISE)
2780 return -EINVAL;
2781 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2782 }
2783
4c476991
JB		 2784 if (!rdev->ops->get_key)
2785 return -EOPNOTSUPP;
41ade00f 2786
fd2120ca 2787 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2788 if (!msg)
2789 return -ENOMEM;
41ade00f 2790
15e47304 2791 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2792 NL80211_CMD_NEW_KEY);
cb35fba3 2793 if (!hdr)
9fe271af 2794 goto nla_put_failure;
41ade00f
JB		 2795
2796 cookie.msg = msg;
b9454e83 2797 cookie.idx = key_idx;
41ade00f 2798
9360ffd1
DM		 2799 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2800 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2801 goto nla_put_failure;
2802 if (mac_addr &&
2803 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2804 goto nla_put_failure;
41ade00f 2805
e31b8213
JB		 2806 if (pairwise && mac_addr &&
2807 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2808 return -ENOENT;
2809
e35e4d28
HG		 2810 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2811 get_key_callback);
41ade00f
JB		 2812
2813 if (err)
6c95e2a2 2814 goto free_msg;
41ade00f
JB		 2815
2816 if (cookie.error)
2817 goto nla_put_failure;
2818
2819 genlmsg_end(msg, hdr);
4c476991 2820 return genlmsg_reply(msg, info);
41ade00f
JB		 2821
2822 nla_put_failure:
2823 err = -ENOBUFS;
6c95e2a2 2824 free_msg:
41ade00f 2825 nlmsg_free(msg);
41ade00f
JB		 2826 return err;
2827}
2828
2829static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2830{
4c476991 2831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2832 struct key_parse key;
41ade00f 2833 int err;
4c476991 2834 struct net_device *dev = info->user_ptr[1];
41ade00f 2835
b9454e83
JB		 2836 err = nl80211_parse_key(info, &key);
2837 if (err)
2838 return err;
41ade00f 2839
b9454e83 2840 if (key.idx < 0)
41ade00f
JB		 2841 return -EINVAL;
2842
b9454e83
JB		 2843 /* only support setting default key */
2844 if (!key.def && !key.defmgmt)
41ade00f
JB		 2845 return -EINVAL;
2846
dbd2fd65 2847 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2848
dbd2fd65
JB		 2849 if (key.def) {
2850 if (!rdev->ops->set_default_key) {
2851 err = -EOPNOTSUPP;
2852 goto out;
2853 }
41ade00f 2854
dbd2fd65
JB		 2855 err = nl80211_key_allowed(dev->ieee80211_ptr);
2856 if (err)
2857 goto out;
2858
e35e4d28 2859 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2860 key.def_uni, key.def_multi);
2861
2862 if (err)
2863 goto out;
fffd0934 2864
3d23e349 2865#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2866 dev->ieee80211_ptr->wext.default_key = key.idx;
2867#endif
2868 } else {
2869 if (key.def_uni || !key.def_multi) {
2870 err = -EINVAL;
2871 goto out;
2872 }
2873
2874 if (!rdev->ops->set_default_mgmt_key) {
2875 err = -EOPNOTSUPP;
2876 goto out;
2877 }
2878
2879 err = nl80211_key_allowed(dev->ieee80211_ptr);
2880 if (err)
2881 goto out;
2882
e35e4d28 2883 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2884 if (err)
2885 goto out;
2886
2887#ifdef CONFIG_CFG80211_WEXT
2888 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2889#endif
dbd2fd65
JB		 2890 }
2891
2892 out:
fffd0934 2893 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2894
41ade00f
JB		 2895 return err;
2896}
2897
2898static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2899{
4c476991 2900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2901 int err;
4c476991 2902 struct net_device *dev = info->user_ptr[1];
b9454e83 2903 struct key_parse key;
e31b8213 2904 const u8 *mac_addr = NULL;
41ade00f 2905
b9454e83
JB		 2906 err = nl80211_parse_key(info, &key);
2907 if (err)
2908 return err;
41ade00f 2909
b9454e83 2910 if (!key.p.key)
41ade00f
JB		 2911 return -EINVAL;
2912
41ade00f
JB		 2913 if (info->attrs[NL80211_ATTR_MAC])
2914 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2915
e31b8213
JB		 2916 if (key.type == -1) {
2917 if (mac_addr)
2918 key.type = NL80211_KEYTYPE_PAIRWISE;
2919 else
2920 key.type = NL80211_KEYTYPE_GROUP;
2921 }
2922
2923 /* for now */
2924 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2925 key.type != NL80211_KEYTYPE_GROUP)
2926 return -EINVAL;
2927
4c476991
JB		 2928 if (!rdev->ops->add_key)
2929 return -EOPNOTSUPP;
25e47c18 2930
e31b8213
JB		 2931 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2932 key.type == NL80211_KEYTYPE_PAIRWISE,
2933 mac_addr))
4c476991 2934 return -EINVAL;
41ade00f 2935
fffd0934
JB		 2936 wdev_lock(dev->ieee80211_ptr);
2937 err = nl80211_key_allowed(dev->ieee80211_ptr);
2938 if (!err)
e35e4d28
HG		 2939 err = rdev_add_key(rdev, dev, key.idx,
2940 key.type == NL80211_KEYTYPE_PAIRWISE,
2941 mac_addr, &key.p);
fffd0934 2942 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2943
41ade00f
JB		 2944 return err;
2945}
2946
2947static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2948{
4c476991 2949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2950 int err;
4c476991 2951 struct net_device *dev = info->user_ptr[1];
41ade00f 2952 u8 *mac_addr = NULL;
b9454e83 2953 struct key_parse key;
41ade00f 2954
b9454e83
JB		 2955 err = nl80211_parse_key(info, &key);
2956 if (err)
2957 return err;
41ade00f
JB		 2958
2959 if (info->attrs[NL80211_ATTR_MAC])
2960 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2961
e31b8213
JB		 2962 if (key.type == -1) {
2963 if (mac_addr)
2964 key.type = NL80211_KEYTYPE_PAIRWISE;
2965 else
2966 key.type = NL80211_KEYTYPE_GROUP;
2967 }
2968
2969 /* for now */
2970 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2971 key.type != NL80211_KEYTYPE_GROUP)
2972 return -EINVAL;
2973
4c476991
JB		 2974 if (!rdev->ops->del_key)
2975 return -EOPNOTSUPP;
41ade00f 2976
fffd0934
JB		 2977 wdev_lock(dev->ieee80211_ptr);
2978 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2979
2980 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2981 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2982 err = -ENOENT;
2983
fffd0934 2984 if (!err)
e35e4d28
HG		 2985 err = rdev_del_key(rdev, dev, key.idx,
2986 key.type == NL80211_KEYTYPE_PAIRWISE,
2987 mac_addr);
41ade00f 2988
3d23e349 2989#ifdef CONFIG_CFG80211_WEXT
08645126 2990 if (!err) {
b9454e83 2991 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2992 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2993 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2994 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2995 }
2996#endif
fffd0934 2997 wdev_unlock(dev->ieee80211_ptr);
08645126 2998
41ade00f
JB		 2999 return err;
3000}
3001
77765eaf
VT		 3002/* This function returns an error or the number of nested attributes */
3003static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3004{
3005 struct nlattr *attr;
3006 int n_entries = 0, tmp;
3007
3008 nla_for_each_nested(attr, nl_attr, tmp) {
3009 if (nla_len(attr) != ETH_ALEN)
3010 return -EINVAL;
3011
3012 n_entries++;
3013 }
3014
3015 return n_entries;
3016}
3017
3018/*
3019 * This function parses ACL information and allocates memory for ACL data.
3020 * On successful return, the calling function is responsible to free the
3021 * ACL buffer returned by this function.
3022 */
3023static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3024 struct genl_info *info)
3025{
3026 enum nl80211_acl_policy acl_policy;
3027 struct nlattr *attr;
3028 struct cfg80211_acl_data *acl;
3029 int i = 0, n_entries, tmp;
3030
3031 if (!wiphy->max_acl_mac_addrs)
3032 return ERR_PTR(-EOPNOTSUPP);
3033
3034 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3035 return ERR_PTR(-EINVAL);
3036
3037 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3038 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3039 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3040 return ERR_PTR(-EINVAL);
3041
3042 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3043 return ERR_PTR(-EINVAL);
3044
3045 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3046 if (n_entries < 0)
3047 return ERR_PTR(n_entries);
3048
3049 if (n_entries > wiphy->max_acl_mac_addrs)
3050 return ERR_PTR(-ENOTSUPP);
3051
3052 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3053 GFP_KERNEL);
3054 if (!acl)
3055 return ERR_PTR(-ENOMEM);
3056
3057 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3058 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3059 i++;
3060 }
3061
3062 acl->n_acl_entries = n_entries;
3063 acl->acl_policy = acl_policy;
3064
3065 return acl;
3066}
3067
3068static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3069{
3070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3071 struct net_device *dev = info->user_ptr[1];
3072 struct cfg80211_acl_data *acl;
3073 int err;
3074
3075 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3076 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3077 return -EOPNOTSUPP;
3078
3079 if (!dev->ieee80211_ptr->beacon_interval)
3080 return -EINVAL;
3081
3082 acl = parse_acl_data(&rdev->wiphy, info);
3083 if (IS_ERR(acl))
3084 return PTR_ERR(acl);
3085
3086 err = rdev_set_mac_acl(rdev, dev, acl);
3087
3088 kfree(acl);
3089
3090 return err;
3091}
3092
a1193be8 3093static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3094 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3095{
8860020e 3096 bool haveinfo = false;
ed1b6cc7 3097
a1193be8
SW		 3098 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3099 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3100 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3101 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3102 return -EINVAL;
3103
8860020e 3104 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3105
a1193be8
SW		 3106 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3107 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3108 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3109 if (!bcn->head_len)
3110 return -EINVAL;
3111 haveinfo = true;
ed1b6cc7
JB		 3112 }
3113
a1193be8
SW		 3114 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3115 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3116 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3117 haveinfo = true;
ed1b6cc7
JB		 3118 }
3119
4c476991
JB		 3120 if (!haveinfo)
3121 return -EINVAL;
3b85875a 3122
a1193be8
SW		 3123 if (attrs[NL80211_ATTR_IE]) {
3124 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3125 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3126 }
3127
a1193be8 3128 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3129 bcn->proberesp_ies =
a1193be8 3130 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3131 bcn->proberesp_ies_len =
a1193be8 3132 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3133 }
3134
a1193be8 3135 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3136 bcn->assocresp_ies =
a1193be8 3137 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3138 bcn->assocresp_ies_len =
a1193be8 3139 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3140 }
3141
a1193be8
SW		 3142 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3143 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3144 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3145 }
3146
8860020e
JB		 3147 return 0;
3148}
3149
46c1dd0c
FF		 3150static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3151 struct cfg80211_ap_settings *params)
3152{
3153 struct wireless_dev *wdev;
3154 bool ret = false;
3155
89a54e48 3156 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3157 if (wdev->iftype != NL80211_IFTYPE_AP &&
3158 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3159 continue;
3160
683b6d3b 3161 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3162 continue;
3163
683b6d3b 3164 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3165 ret = true;
3166 break;
3167 }
3168
46c1dd0c
FF		 3169 return ret;
3170}
3171
e39e5b5e
JM		 3172static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3173 enum nl80211_auth_type auth_type,
3174 enum nl80211_commands cmd)
3175{
3176 if (auth_type > NL80211_AUTHTYPE_MAX)
3177 return false;
3178
3179 switch (cmd) {
3180 case NL80211_CMD_AUTHENTICATE:
3181 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3182 auth_type == NL80211_AUTHTYPE_SAE)
3183 return false;
3184 return true;
3185 case NL80211_CMD_CONNECT:
3186 case NL80211_CMD_START_AP:
3187 /* SAE not supported yet */
3188 if (auth_type == NL80211_AUTHTYPE_SAE)
3189 return false;
3190 return true;
3191 default:
3192 return false;
3193 }
3194}
3195
8860020e
JB		 3196static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3197{
3198 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3199 struct net_device *dev = info->user_ptr[1];
3200 struct wireless_dev *wdev = dev->ieee80211_ptr;
3201 struct cfg80211_ap_settings params;
3202 int err;
3203
3204 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3205 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3206 return -EOPNOTSUPP;
3207
3208 if (!rdev->ops->start_ap)
3209 return -EOPNOTSUPP;
3210
3211 if (wdev->beacon_interval)
3212 return -EALREADY;
3213
3214 memset(&params, 0, sizeof(params));
3215
3216 /* these are required for START_AP */
3217 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3218 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3219 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3220 return -EINVAL;
3221
a1193be8 3222 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3223 if (err)
3224 return err;
3225
3226 params.beacon_interval =
3227 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3228 params.dtim_period =
3229 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3230
3231 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3232 if (err)
3233 return err;
3234
3235 /*
3236 * In theory, some of these attributes should be required here
3237 * but since they were not used when the command was originally
3238 * added, keep them optional for old user space programs to let
3239 * them continue to work with drivers that do not need the
3240 * additional information -- drivers must check!
3241 */
3242 if (info->attrs[NL80211_ATTR_SSID]) {
3243 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3244 params.ssid_len =
3245 nla_len(info->attrs[NL80211_ATTR_SSID]);
3246 if (params.ssid_len == 0 ||
3247 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3248 return -EINVAL;
3249 }
3250
3251 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3252 params.hidden_ssid = nla_get_u32(
3253 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3254 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3255 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3256 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3257 return -EINVAL;
3258 }
3259
3260 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3261
3262 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3263 params.auth_type = nla_get_u32(
3264 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3265 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3266 NL80211_CMD_START_AP))
8860020e
JB		 3267 return -EINVAL;
3268 } else
3269 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3270
3271 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3272 NL80211_MAX_NR_CIPHER_SUITES);
3273 if (err)
3274 return err;
3275
1b658f11
VT		 3276 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3277 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3278 return -EOPNOTSUPP;
3279 params.inactivity_timeout = nla_get_u16(
3280 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3281 }
3282
53cabad7
JB		 3283 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3284 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3285 return -EINVAL;
3286 params.p2p_ctwindow =
3287 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3288 if (params.p2p_ctwindow > 127)
3289 return -EINVAL;
3290 if (params.p2p_ctwindow != 0 &&
3291 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3292 return -EINVAL;
3293 }
3294
3295 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3296 u8 tmp;
3297
3298 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3299 return -EINVAL;
3300 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3301 if (tmp > 1)
3302 return -EINVAL;
3303 params.p2p_opp_ps = tmp;
3304 if (params.p2p_opp_ps != 0 &&
3305 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3306 return -EINVAL;
3307 }
3308
aa430da4 3309 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3310 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3311 if (err)
3312 return err;
3313 } else if (wdev->preset_chandef.chan) {
3314 params.chandef = wdev->preset_chandef;
46c1dd0c 3315 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3316 return -EINVAL;
3317
174e0cd2
IP		 3318 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3319 wdev->iftype))
aa430da4
JB		 3320 return -EINVAL;
3321
77765eaf
VT		 3322 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3323 params.acl = parse_acl_data(&rdev->wiphy, info);
3324 if (IS_ERR(params.acl))
3325 return PTR_ERR(params.acl);
3326 }
3327
c56589ed 3328 wdev_lock(wdev);
e35e4d28 3329 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3330 if (!err) {
683b6d3b 3331 wdev->preset_chandef = params.chandef;
8860020e 3332 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3333 wdev->chandef = params.chandef;
06e191e2
AQ		 3334 wdev->ssid_len = params.ssid_len;
3335 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3336 }
c56589ed 3337 wdev_unlock(wdev);
77765eaf
VT		 3338
3339 kfree(params.acl);
3340
56d1893d 3341 return err;
ed1b6cc7
JB		 3342}
3343
8860020e
JB		 3344static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3345{
3346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3347 struct net_device *dev = info->user_ptr[1];
3348 struct wireless_dev *wdev = dev->ieee80211_ptr;
3349 struct cfg80211_beacon_data params;
3350 int err;
3351
3352 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3353 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3354 return -EOPNOTSUPP;
3355
3356 if (!rdev->ops->change_beacon)
3357 return -EOPNOTSUPP;
3358
3359 if (!wdev->beacon_interval)
3360 return -EINVAL;
3361
a1193be8 3362 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3363 if (err)
3364 return err;
3365
c56589ed
SW		 3366 wdev_lock(wdev);
3367 err = rdev_change_beacon(rdev, dev, &params);
3368 wdev_unlock(wdev);
3369
3370 return err;
8860020e
JB		 3371}
3372
3373static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3374{
4c476991
JB		 3375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3376 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3377
7c8d5e03 3378 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3379}
3380
5727ef1b
JB		 3381static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3382 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3383 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3384 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3385 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3386 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3387 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3388};
3389
eccb8e8f 3390static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3391 enum nl80211_iftype iftype,
eccb8e8f 3392 struct station_parameters *params)
5727ef1b
JB		 3393{
3394 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3395 struct nlattr *nla;
5727ef1b
JB		 3396 int flag;
3397
eccb8e8f
JB		 3398 /*
3399 * Try parsing the new attribute first so userspace
3400 * can specify both for older kernels.
3401 */
3402 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3403 if (nla) {
3404 struct nl80211_sta_flag_update *sta_flags;
3405
3406 sta_flags = nla_data(nla);
3407 params->sta_flags_mask = sta_flags->mask;
3408 params->sta_flags_set = sta_flags->set;
77ee7c89 3409 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3410 if ((params->sta_flags_mask |
3411 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3412 return -EINVAL;
3413 return 0;
3414 }
3415
3416 /* if present, parse the old attribute */
5727ef1b 3417
eccb8e8f 3418 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3419 if (!nla)
3420 return 0;
3421
3422 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3423 nla, sta_flags_policy))
3424 return -EINVAL;
3425
bdd3ae3d
JB		 3426 /*
3427 * Only allow certain flags for interface types so that
3428 * other attributes are silently ignored. Remember that
3429 * this is backward compatibility code with old userspace
3430 * and shouldn't be hit in other cases anyway.
3431 */
3432 switch (iftype) {
3433 case NL80211_IFTYPE_AP:
3434 case NL80211_IFTYPE_AP_VLAN:
3435 case NL80211_IFTYPE_P2P_GO:
3436 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3437 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3438 BIT(NL80211_STA_FLAG_WME) |
3439 BIT(NL80211_STA_FLAG_MFP);
3440 break;
3441 case NL80211_IFTYPE_P2P_CLIENT:
3442 case NL80211_IFTYPE_STATION:
3443 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3444 BIT(NL80211_STA_FLAG_TDLS_PEER);
3445 break;
3446 case NL80211_IFTYPE_MESH_POINT:
3447 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3448 BIT(NL80211_STA_FLAG_MFP) |
3449 BIT(NL80211_STA_FLAG_AUTHORIZED);
3450 default:
3451 return -EINVAL;
3452 }
5727ef1b 3453
3383b5a6
JB		 3454 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3455 if (flags[flag]) {
eccb8e8f 3456 params->sta_flags_set |= (1<<flag);
5727ef1b 3457
3383b5a6
JB		 3458 /* no longer support new API additions in old API */
3459 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3460 return -EINVAL;
3461 }
3462 }
3463
5727ef1b
JB		 3464 return 0;
3465}
3466
c8dcfd8a
FF		 3467static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3468 int attr)
3469{
3470 struct nlattr *rate;
8eb41c8d
VK		 3471 u32 bitrate;
3472 u16 bitrate_compat;
c8dcfd8a
FF		 3473
3474 rate = nla_nest_start(msg, attr);
3475 if (!rate)
db9c64cf 3476 return false;
c8dcfd8a
FF		 3477
3478 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3479 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3480 /* report 16-bit bitrate only if we can */
3481 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3482 if (bitrate > 0 &&
3483 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3484 return false;
3485 if (bitrate_compat > 0 &&
3486 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3487 return false;
3488
3489 if (info->flags & RATE_INFO_FLAGS_MCS) {
3490 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3491 return false;
3492 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3493 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3494 return false;
3495 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3496 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3497 return false;
3498 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3499 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3500 return false;
3501 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3502 return false;
3503 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3504 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3505 return false;
3506 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3507 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3508 return false;
3509 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3510 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3511 return false;
3512 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3513 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3514 return false;
3515 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3516 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3517 return false;
3518 }
c8dcfd8a
FF		 3519
3520 nla_nest_end(msg, rate);
3521 return true;
c8dcfd8a
FF		 3522}
3523
119363c7
FF		 3524static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3525 int id)
3526{
3527 void *attr;
3528 int i = 0;
3529
3530 if (!mask)
3531 return true;
3532
3533 attr = nla_nest_start(msg, id);
3534 if (!attr)
3535 return false;
3536
3537 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3538 if (!(mask & BIT(i)))
3539 continue;
3540
3541 if (nla_put_u8(msg, i, signal[i]))
3542 return false;
3543 }
3544
3545 nla_nest_end(msg, attr);
3546
3547 return true;
3548}
3549
15e47304 3550static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3551 int flags,
3552 struct cfg80211_registered_device *rdev,
3553 struct net_device *dev,
98b62183 3554 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3555{
3556 void *hdr;
f4263c98 3557 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3558
15e47304 3559 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3560 if (!hdr)
3561 return -1;
3562
9360ffd1
DM		 3563 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3564 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3565 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3566 goto nla_put_failure;
f5ea9120 3567
2ec600d6
LCC		 3568 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3569 if (!sinfoattr)
fd5b74dc 3570 goto nla_put_failure;
9360ffd1
DM		 3571 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3572 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3573 sinfo->connected_time))
3574 goto nla_put_failure;
3575 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3576 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3577 sinfo->inactive_time))
3578 goto nla_put_failure;
42745e03
VK		 3579 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3580 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3581 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3582 (u32)sinfo->rx_bytes))
9360ffd1 3583 goto nla_put_failure;
42745e03 3584 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3585 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3586 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3587 (u32)sinfo->tx_bytes))
3588 goto nla_put_failure;
3589 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3590 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3591 sinfo->rx_bytes))
3592 goto nla_put_failure;
3593 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3594 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3595 sinfo->tx_bytes))
3596 goto nla_put_failure;
3597 if ((sinfo->filled & STATION_INFO_LLID) &&
3598 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3599 goto nla_put_failure;
3600 if ((sinfo->filled & STATION_INFO_PLID) &&
3601 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3602 goto nla_put_failure;
3603 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3604 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3605 sinfo->plink_state))
3606 goto nla_put_failure;
66266b3a
JL		 3607 switch (rdev->wiphy.signal_type) {
3608 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3609 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3610 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3611 sinfo->signal))
3612 goto nla_put_failure;
3613 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3614 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3615 sinfo->signal_avg))
3616 goto nla_put_failure;
66266b3a
JL		 3617 break;
3618 default:
3619 break;
3620 }
119363c7
FF		 3621 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3622 if (!nl80211_put_signal(msg, sinfo->chains,
3623 sinfo->chain_signal,
3624 NL80211_STA_INFO_CHAIN_SIGNAL))
3625 goto nla_put_failure;
3626 }
3627 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3628 if (!nl80211_put_signal(msg, sinfo->chains,
3629 sinfo->chain_signal_avg,
3630 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3631 goto nla_put_failure;
3632 }
420e7fab 3633 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3634 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3635 NL80211_STA_INFO_TX_BITRATE))
3636 goto nla_put_failure;
3637 }
3638 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3639 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3640 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3641 goto nla_put_failure;
420e7fab 3642 }
9360ffd1
DM		 3643 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3644 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3645 sinfo->rx_packets))
3646 goto nla_put_failure;
3647 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3648 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3649 sinfo->tx_packets))
3650 goto nla_put_failure;
3651 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3652 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3653 sinfo->tx_retries))
3654 goto nla_put_failure;
3655 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3656 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3657 sinfo->tx_failed))
3658 goto nla_put_failure;
867d849f
AQ		 3659 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3660 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3661 sinfo->expected_throughput))
3662 goto nla_put_failure;
9360ffd1
DM		 3663 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3664 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3665 sinfo->beacon_loss_count))
3666 goto nla_put_failure;
3b1c5a53
MP		 3667 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3668 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3669 sinfo->local_pm))
3670 goto nla_put_failure;
3671 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3672 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3673 sinfo->peer_pm))
3674 goto nla_put_failure;
3675 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3676 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3677 sinfo->nonpeer_pm))
3678 goto nla_put_failure;
f4263c98
PS		 3679 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3680 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3681 if (!bss_param)
3682 goto nla_put_failure;
3683
9360ffd1
DM		 3684 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3685 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3686 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3687 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3688 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3689 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3690 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3691 sinfo->bss_param.dtim_period) ||
3692 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3693 sinfo->bss_param.beacon_interval))
3694 goto nla_put_failure;
f4263c98
PS		 3695
3696 nla_nest_end(msg, bss_param);
3697 }
9360ffd1
DM		 3698 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3699 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3700 sizeof(struct nl80211_sta_flag_update),
3701 &sinfo->sta_flags))
3702 goto nla_put_failure;
7eab0f64
JL		 3703 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3704 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3705 sinfo->t_offset))
3706 goto nla_put_failure;
2ec600d6 3707 nla_nest_end(msg, sinfoattr);
fd5b74dc 3708
9360ffd1
DM		 3709 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3710 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3711 sinfo->assoc_req_ies))
3712 goto nla_put_failure;
50d3dfb7 3713
fd5b74dc
JB		 3714 return genlmsg_end(msg, hdr);
3715
3716 nla_put_failure:
bc3ed28c
TG		 3717 genlmsg_cancel(msg, hdr);
3718 return -EMSGSIZE;
fd5b74dc
JB		 3719}
3720
2ec600d6 3721static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3722 struct netlink_callback *cb)
2ec600d6 3723{
2ec600d6 3724 struct station_info sinfo;
1b8ec87a 3725 struct cfg80211_registered_device *rdev;
97990a06 3726 struct wireless_dev *wdev;
2ec600d6 3727 u8 mac_addr[ETH_ALEN];
97990a06 3728 int sta_idx = cb->args[2];
2ec600d6 3729 int err;
2ec600d6 3730
1b8ec87a 3731 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3732 if (err)
3733 return err;
bba95fef 3734
97990a06
JB		 3735 if (!wdev->netdev) {
3736 err = -EINVAL;
3737 goto out_err;
3738 }
3739
1b8ec87a 3740 if (!rdev->ops->dump_station) {
eec60b03 3741 err = -EOPNOTSUPP;
bba95fef
JB		 3742 goto out_err;
3743 }
3744
bba95fef 3745 while (1) {
f612cedf 3746 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3747 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3748 mac_addr, &sinfo);
bba95fef
JB		 3749 if (err == -ENOENT)
3750 break;
3751 if (err)
3b85875a 3752 goto out_err;
bba95fef
JB		 3753
3754 if (nl80211_send_station(skb,
15e47304 3755 NETLINK_CB(cb->skb).portid,
bba95fef 3756 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3757 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3758 &sinfo) < 0)
3759 goto out;
3760
3761 sta_idx++;
3762 }
3763
3764
3765 out:
97990a06 3766 cb->args[2] = sta_idx;
bba95fef 3767 err = skb->len;
bba95fef 3768 out_err:
1b8ec87a 3769 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3770
3771 return err;
2ec600d6 3772}
fd5b74dc 3773
5727ef1b
JB		 3774static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3775{
4c476991
JB		 3776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3777 struct net_device *dev = info->user_ptr[1];
2ec600d6 3778 struct station_info sinfo;
fd5b74dc
JB		 3779 struct sk_buff *msg;
3780 u8 *mac_addr = NULL;
4c476991 3781 int err;
fd5b74dc 3782
2ec600d6 3783 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3784
3785 if (!info->attrs[NL80211_ATTR_MAC])
3786 return -EINVAL;
3787
3788 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3789
4c476991
JB		 3790 if (!rdev->ops->get_station)
3791 return -EOPNOTSUPP;
3b85875a 3792
e35e4d28 3793 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3794 if (err)
4c476991 3795 return err;
2ec600d6 3796
fd2120ca 3797 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3798 if (!msg)
4c476991 3799 return -ENOMEM;
fd5b74dc 3800
15e47304 3801 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3802 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3803 nlmsg_free(msg);
3804 return -ENOBUFS;
3805 }
3b85875a 3806
4c476991 3807 return genlmsg_reply(msg, info);
5727ef1b
JB		 3808}
3809
77ee7c89
JB		 3810int cfg80211_check_station_change(struct wiphy *wiphy,
3811 struct station_parameters *params,
3812 enum cfg80211_station_type statype)
3813{
3814 if (params->listen_interval != -1)
3815 return -EINVAL;
3816 if (params->aid)
3817 return -EINVAL;
3818
3819 /* When you run into this, adjust the code below for the new flag */
3820 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3821
3822 switch (statype) {
eef941e6
TP		 3823 case CFG80211_STA_MESH_PEER_KERNEL:
3824 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3825 /*
3826 * No ignoring the TDLS flag here -- the userspace mesh
3827 * code doesn't have the bug of including TDLS in the
3828 * mask everywhere.
3829 */
3830 if (params->sta_flags_mask &
3831 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3832 BIT(NL80211_STA_FLAG_MFP) |
3833 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3834 return -EINVAL;
3835 break;
3836 case CFG80211_STA_TDLS_PEER_SETUP:
3837 case CFG80211_STA_TDLS_PEER_ACTIVE:
3838 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3839 return -EINVAL;
3840 /* ignore since it can't change */
3841 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3842 break;
3843 default:
3844 /* disallow mesh-specific things */
3845 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3846 return -EINVAL;
3847 if (params->local_pm)
3848 return -EINVAL;
3849 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3850 return -EINVAL;
3851 }
3852
3853 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3854 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3855 /* TDLS can't be set, ... */
3856 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3857 return -EINVAL;
3858 /*
3859 * ... but don't bother the driver with it. This works around
3860 * a hostapd/wpa_supplicant issue -- it always includes the
3861 * TLDS_PEER flag in the mask even for AP mode.
3862 */
3863 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3864 }
3865
3866 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3867 /* reject other things that can't change */
3868 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3869 return -EINVAL;
3870 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3871 return -EINVAL;
3872 if (params->supported_rates)
3873 return -EINVAL;
3874 if (params->ext_capab || params->ht_capa || params->vht_capa)
3875 return -EINVAL;
3876 }
3877
3878 if (statype != CFG80211_STA_AP_CLIENT) {
3879 if (params->vlan)
3880 return -EINVAL;
3881 }
3882
3883 switch (statype) {
3884 case CFG80211_STA_AP_MLME_CLIENT:
3885 /* Use this only for authorizing/unauthorizing a station */
3886 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3887 return -EOPNOTSUPP;
3888 break;
3889 case CFG80211_STA_AP_CLIENT:
3890 /* accept only the listed bits */
3891 if (params->sta_flags_mask &
3892 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3893 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3894 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3895 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3896 BIT(NL80211_STA_FLAG_WME) |
3897 BIT(NL80211_STA_FLAG_MFP)))
3898 return -EINVAL;
3899
3900 /* but authenticated/associated only if driver handles it */
3901 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3902 params->sta_flags_mask &
3903 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3904 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3905 return -EINVAL;
3906 break;
3907 case CFG80211_STA_IBSS:
3908 case CFG80211_STA_AP_STA:
3909 /* reject any changes other than AUTHORIZED */
3910 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3911 return -EINVAL;
3912 break;
3913 case CFG80211_STA_TDLS_PEER_SETUP:
3914 /* reject any changes other than AUTHORIZED or WME */
3915 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3916 BIT(NL80211_STA_FLAG_WME)))
3917 return -EINVAL;
3918 /* force (at least) rates when authorizing */
3919 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3920 !params->supported_rates)
3921 return -EINVAL;
3922 break;
3923 case CFG80211_STA_TDLS_PEER_ACTIVE:
3924 /* reject any changes */
3925 return -EINVAL;
eef941e6 3926 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3927 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3928 return -EINVAL;
3929 break;
eef941e6 3930 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3931 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3932 return -EINVAL;
3933 break;
3934 }
3935
3936 return 0;
3937}
3938EXPORT_SYMBOL(cfg80211_check_station_change);
3939
5727ef1b 3940/*
c258d2de 3941 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3942 */
80b99899
JB		 3943static struct net_device *get_vlan(struct genl_info *info,
3944 struct cfg80211_registered_device *rdev)
5727ef1b 3945{
463d0183 3946 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3947 struct net_device *v;
3948 int ret;
3949
3950 if (!vlanattr)
3951 return NULL;
3952
3953 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3954 if (!v)
3955 return ERR_PTR(-ENODEV);
3956
3957 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3958 ret = -EINVAL;
3959 goto error;
5727ef1b 3960 }
80b99899 3961
77ee7c89
JB		 3962 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3963 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3964 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3965 ret = -EINVAL;
3966 goto error;
3967 }
3968
80b99899
JB		 3969 if (!netif_running(v)) {
3970 ret = -ENETDOWN;
3971 goto error;
3972 }
3973
3974 return v;
3975 error:
3976 dev_put(v);
3977 return ERR_PTR(ret);
5727ef1b
JB		 3978}
3979
94e860f1
JB		 3980static const struct nla_policy
3981nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3982 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3983 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3984};
3985
ff276691
JB		 3986static int nl80211_parse_sta_wme(struct genl_info *info,
3987 struct station_parameters *params)
df881293 3988{
df881293
JM		 3989 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3990 struct nlattr *nla;
3991 int err;
3992
df881293
JM		 3993 /* parse WME attributes if present */
3994 if (!info->attrs[NL80211_ATTR_STA_WME])
3995 return 0;
3996
3997 nla = info->attrs[NL80211_ATTR_STA_WME];
3998 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3999 nl80211_sta_wme_policy);
4000 if (err)
4001 return err;
4002
4003 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4004 params->uapsd_queues = nla_get_u8(
4005 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4006 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4007 return -EINVAL;
4008
4009 if (tb[NL80211_STA_WME_MAX_SP])
4010 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4011
4012 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4013 return -EINVAL;
4014
4015 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4016
4017 return 0;
4018}
4019
c01fc9ad
SD		 4020static int nl80211_parse_sta_channel_info(struct genl_info *info,
4021 struct station_parameters *params)
4022{
4023 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4024 params->supported_channels =
4025 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4026 params->supported_channels_len =
4027 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4028 /*
4029 * Need to include at least one (first channel, number of
4030 * channels) tuple for each subband, and must have proper
4031 * tuples for the rest of the data as well.
4032 */
4033 if (params->supported_channels_len < 2)
4034 return -EINVAL;
4035 if (params->supported_channels_len % 2)
4036 return -EINVAL;
4037 }
4038
4039 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4040 params->supported_oper_classes =
4041 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4042 params->supported_oper_classes_len =
4043 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4044 /*
4045 * The value of the Length field of the Supported Operating
4046 * Classes element is between 2 and 253.
4047 */
4048 if (params->supported_oper_classes_len < 2 ||
4049 params->supported_oper_classes_len > 253)
4050 return -EINVAL;
4051 }
4052 return 0;
4053}
4054
ff276691
JB		 4055static int nl80211_set_station_tdls(struct genl_info *info,
4056 struct station_parameters *params)
4057{
c01fc9ad 4058 int err;
ff276691 4059 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4060 if (info->attrs[NL80211_ATTR_PEER_AID])
4061 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4062 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4063 params->ht_capa =
4064 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4065 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4066 params->vht_capa =
4067 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4068
c01fc9ad
SD		 4069 err = nl80211_parse_sta_channel_info(info, params);
4070 if (err)
4071 return err;
4072
ff276691
JB		 4073 return nl80211_parse_sta_wme(info, params);
4074}
4075
5727ef1b
JB		 4076static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4077{
4c476991 4078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4079 struct net_device *dev = info->user_ptr[1];
5727ef1b 4080 struct station_parameters params;
77ee7c89
JB		 4081 u8 *mac_addr;
4082 int err;
5727ef1b
JB		 4083
4084 memset(&params, 0, sizeof(params));
4085
4086 params.listen_interval = -1;
4087
77ee7c89
JB		 4088 if (!rdev->ops->change_station)
4089 return -EOPNOTSUPP;
4090
5727ef1b
JB		 4091 if (info->attrs[NL80211_ATTR_STA_AID])
4092 return -EINVAL;
4093
4094 if (!info->attrs[NL80211_ATTR_MAC])
4095 return -EINVAL;
4096
4097 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4098
4099 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4100 params.supported_rates =
4101 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4102 params.supported_rates_len =
4103 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4104 }
4105
9d62a986
JM		 4106 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4107 params.capability =
4108 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4109 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4110 }
4111
4112 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4113 params.ext_capab =
4114 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4115 params.ext_capab_len =
4116 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4117 }
4118
df881293 4119 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4120 return -EINVAL;
36aedc90 4121
bdd3ae3d 4122 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4123 return -EINVAL;
4124
f8bacc21 4125 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4126 params.plink_action =
f8bacc21
JB		 4127 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4128 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4129 return -EINVAL;
4130 }
2ec600d6 4131
f8bacc21 4132 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4133 params.plink_state =
f8bacc21
JB		 4134 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4135 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4136 return -EINVAL;
4137 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4138 }
9c3990aa 4139
3b1c5a53
MP		 4140 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4141 enum nl80211_mesh_power_mode pm = nla_get_u32(
4142 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4143
4144 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4145 pm > NL80211_MESH_POWER_MAX)
4146 return -EINVAL;
4147
4148 params.local_pm = pm;
4149 }
4150
77ee7c89
JB		 4151 /* Include parameters for TDLS peer (will check later) */
4152 err = nl80211_set_station_tdls(info, &params);
4153 if (err)
4154 return err;
4155
4156 params.vlan = get_vlan(info, rdev);
4157 if (IS_ERR(params.vlan))
4158 return PTR_ERR(params.vlan);
4159
a97f4424
JB		 4160 switch (dev->ieee80211_ptr->iftype) {
4161 case NL80211_IFTYPE_AP:
4162 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4163 case NL80211_IFTYPE_P2P_GO:
074ac8df 4164 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4165 case NL80211_IFTYPE_STATION:
267335d6 4166 case NL80211_IFTYPE_ADHOC:
a97f4424 4167 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4168 break;
4169 default:
77ee7c89
JB		 4170 err = -EOPNOTSUPP;
4171 goto out_put_vlan;
034d655e
JB		 4172 }
4173
77ee7c89 4174 /* driver will call cfg80211_check_station_change() */
e35e4d28 4175 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4176
77ee7c89 4177 out_put_vlan:
5727ef1b
JB		 4178 if (params.vlan)
4179 dev_put(params.vlan);
3b85875a 4180
5727ef1b
JB		 4181 return err;
4182}
4183
4184static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4185{
4c476991 4186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4187 int err;
4c476991 4188 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4189 struct station_parameters params;
4190 u8 *mac_addr = NULL;
4191
4192 memset(&params, 0, sizeof(params));
4193
984c311b
JB		 4194 if (!rdev->ops->add_station)
4195 return -EOPNOTSUPP;
4196
5727ef1b
JB		 4197 if (!info->attrs[NL80211_ATTR_MAC])
4198 return -EINVAL;
4199
5727ef1b
JB		 4200 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4201 return -EINVAL;
4202
4203 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4204 return -EINVAL;
4205
5e4b6f56
JM		 4206 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4207 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4208 return -EINVAL;
4209
5727ef1b
JB		 4210 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4211 params.supported_rates =
4212 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4213 params.supported_rates_len =
4214 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4215 params.listen_interval =
4216 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4217
3d124ea2 4218 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4219 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4220 else
4221 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4222 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4223 return -EINVAL;
51b50fbe 4224
9d62a986
JM		 4225 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4226 params.capability =
4227 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4228 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4229 }
4230
4231 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4232 params.ext_capab =
4233 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4234 params.ext_capab_len =
4235 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4236 }
4237
36aedc90
JM		 4238 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4239 params.ht_capa =
4240 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4241
f461be3e
MP		 4242 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4243 params.vht_capa =
4244 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4245
60f4a7b1
MK		 4246 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4247 params.opmode_notif_used = true;
4248 params.opmode_notif =
4249 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4250 }
4251
f8bacc21 4252 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4253 params.plink_action =
f8bacc21
JB		 4254 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4255 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4256 return -EINVAL;
4257 }
96b78dff 4258
c01fc9ad
SD		 4259 err = nl80211_parse_sta_channel_info(info, &params);
4260 if (err)
4261 return err;
4262
ff276691
JB		 4263 err = nl80211_parse_sta_wme(info, &params);
4264 if (err)
4265 return err;
bdd90d5e 4266
bdd3ae3d 4267 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4268 return -EINVAL;
4269
77ee7c89
JB		 4270 /* When you run into this, adjust the code below for the new flag */
4271 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4272
bdd90d5e
JB		 4273 switch (dev->ieee80211_ptr->iftype) {
4274 case NL80211_IFTYPE_AP:
4275 case NL80211_IFTYPE_AP_VLAN:
4276 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4277 /* ignore WME attributes if iface/sta is not capable */
4278 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4279 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4280 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4281
bdd90d5e 4282 /* TDLS peers cannot be added */
3d124ea2
JM		 4283 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4284 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4285 return -EINVAL;
bdd90d5e
JB		 4286 /* but don't bother the driver with it */
4287 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4288
d582cffb
JB		 4289 /* allow authenticated/associated only if driver handles it */
4290 if (!(rdev->wiphy.features &
4291 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4292 params.sta_flags_mask &
4293 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4294 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4295 return -EINVAL;
4296
bdd90d5e
JB		 4297 /* must be last in here for error handling */
4298 params.vlan = get_vlan(info, rdev);
4299 if (IS_ERR(params.vlan))
4300 return PTR_ERR(params.vlan);
4301 break;
4302 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4303 /* ignore uAPSD data */
4304 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4305
d582cffb
JB		 4306 /* associated is disallowed */
4307 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4308 return -EINVAL;
bdd90d5e 4309 /* TDLS peers cannot be added */
3d124ea2
JM		 4310 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4311 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4312 return -EINVAL;
4313 break;
4314 case NL80211_IFTYPE_STATION:
93d08f0b 4315 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4316 /* ignore uAPSD data */
4317 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4318
77ee7c89
JB		 4319 /* these are disallowed */
4320 if (params.sta_flags_mask &
4321 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4322 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4323 return -EINVAL;
bdd90d5e
JB		 4324 /* Only TDLS peers can be added */
4325 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4326 return -EINVAL;
4327 /* Can only add if TDLS ... */
4328 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4329 return -EOPNOTSUPP;
4330 /* ... with external setup is supported */
4331 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4332 return -EOPNOTSUPP;
77ee7c89
JB		 4333 /*
4334 * Older wpa_supplicant versions always mark the TDLS peer
4335 * as authorized, but it shouldn't yet be.
4336 */
4337 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4338 break;
4339 default:
4340 return -EOPNOTSUPP;
c75786c9
EP		 4341 }
4342
bdd90d5e 4343 /* be aware of params.vlan when changing code here */
5727ef1b 4344
e35e4d28 4345 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4346
5727ef1b
JB		 4347 if (params.vlan)
4348 dev_put(params.vlan);
5727ef1b
JB		 4349 return err;
4350}
4351
4352static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4353{
4c476991
JB		 4354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4355 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4356 u8 *mac_addr = NULL;
4357
4358 if (info->attrs[NL80211_ATTR_MAC])
4359 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4360
e80cf853 4361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4363 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4365 return -EINVAL;
5727ef1b 4366
4c476991
JB		 4367 if (!rdev->ops->del_station)
4368 return -EOPNOTSUPP;
3b85875a 4369
e35e4d28 4370 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4371}
4372
15e47304 4373static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4374 int flags, struct net_device *dev,
4375 u8 *dst, u8 *next_hop,
4376 struct mpath_info *pinfo)
4377{
4378 void *hdr;
4379 struct nlattr *pinfoattr;
4380
15e47304 4381 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4382 if (!hdr)
4383 return -1;
4384
9360ffd1
DM		 4385 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4386 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4387 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4388 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4389 goto nla_put_failure;
f5ea9120 4390
2ec600d6
LCC		 4391 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4392 if (!pinfoattr)
4393 goto nla_put_failure;
9360ffd1
DM		 4394 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4395 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4396 pinfo->frame_qlen))
4397 goto nla_put_failure;
4398 if (((pinfo->filled & MPATH_INFO_SN) &&
4399 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4400 ((pinfo->filled & MPATH_INFO_METRIC) &&
4401 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4402 pinfo->metric)) ||
4403 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4404 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4405 pinfo->exptime)) ||
4406 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4407 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4408 pinfo->flags)) ||
4409 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4410 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4411 pinfo->discovery_timeout)) ||
4412 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4413 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4414 pinfo->discovery_retries)))
4415 goto nla_put_failure;
2ec600d6
LCC		 4416
4417 nla_nest_end(msg, pinfoattr);
4418
4419 return genlmsg_end(msg, hdr);
4420
4421 nla_put_failure:
bc3ed28c
TG		 4422 genlmsg_cancel(msg, hdr);
4423 return -EMSGSIZE;
2ec600d6
LCC		 4424}
4425
4426static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4427 struct netlink_callback *cb)
2ec600d6 4428{
2ec600d6 4429 struct mpath_info pinfo;
1b8ec87a 4430 struct cfg80211_registered_device *rdev;
97990a06 4431 struct wireless_dev *wdev;
2ec600d6
LCC		 4432 u8 dst[ETH_ALEN];
4433 u8 next_hop[ETH_ALEN];
97990a06 4434 int path_idx = cb->args[2];
2ec600d6 4435 int err;
2ec600d6 4436
1b8ec87a 4437 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4438 if (err)
4439 return err;
bba95fef 4440
1b8ec87a 4441 if (!rdev->ops->dump_mpath) {
eec60b03 4442 err = -EOPNOTSUPP;
bba95fef
JB		 4443 goto out_err;
4444 }
4445
97990a06 4446 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4447 err = -EOPNOTSUPP;
0448b5fc 4448 goto out_err;
eec60b03
JM		 4449 }
4450
bba95fef 4451 while (1) {
1b8ec87a 4452 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4453 next_hop, &pinfo);
bba95fef 4454 if (err == -ENOENT)
2ec600d6 4455 break;
bba95fef 4456 if (err)
3b85875a 4457 goto out_err;
2ec600d6 4458
15e47304 4459 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4460 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4461 wdev->netdev, dst, next_hop,
bba95fef
JB		 4462 &pinfo) < 0)
4463 goto out;
2ec600d6 4464
bba95fef 4465 path_idx++;
2ec600d6 4466 }
2ec600d6 4467
2ec600d6 4468
bba95fef 4469 out:
97990a06 4470 cb->args[2] = path_idx;
bba95fef 4471 err = skb->len;
bba95fef 4472 out_err:
1b8ec87a 4473 nl80211_finish_wdev_dump(rdev);
bba95fef 4474 return err;
2ec600d6
LCC		 4475}
4476
4477static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4478{
4c476991 4479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4480 int err;
4c476991 4481 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4482 struct mpath_info pinfo;
4483 struct sk_buff *msg;
4484 u8 *dst = NULL;
4485 u8 next_hop[ETH_ALEN];
4486
4487 memset(&pinfo, 0, sizeof(pinfo));
4488
4489 if (!info->attrs[NL80211_ATTR_MAC])
4490 return -EINVAL;
4491
4492 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4493
4c476991
JB		 4494 if (!rdev->ops->get_mpath)
4495 return -EOPNOTSUPP;
2ec600d6 4496
4c476991
JB		 4497 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4498 return -EOPNOTSUPP;
eec60b03 4499
e35e4d28 4500 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4501 if (err)
4c476991 4502 return err;
2ec600d6 4503
fd2120ca 4504 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4505 if (!msg)
4c476991 4506 return -ENOMEM;
2ec600d6 4507
15e47304 4508 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4509 dev, dst, next_hop, &pinfo) < 0) {
4510 nlmsg_free(msg);
4511 return -ENOBUFS;
4512 }
3b85875a 4513
4c476991 4514 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4515}
4516
4517static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4518{
4c476991
JB		 4519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4520 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4521 u8 *dst = NULL;
4522 u8 *next_hop = NULL;
4523
4524 if (!info->attrs[NL80211_ATTR_MAC])
4525 return -EINVAL;
4526
4527 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4528 return -EINVAL;
4529
4530 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4531 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4532
4c476991
JB		 4533 if (!rdev->ops->change_mpath)
4534 return -EOPNOTSUPP;
35a8efe1 4535
4c476991
JB		 4536 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4537 return -EOPNOTSUPP;
2ec600d6 4538
e35e4d28 4539 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4540}
4c476991 4541
2ec600d6
LCC		 4542static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4543{
4c476991
JB		 4544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4545 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4546 u8 *dst = NULL;
4547 u8 *next_hop = NULL;
4548
4549 if (!info->attrs[NL80211_ATTR_MAC])
4550 return -EINVAL;
4551
4552 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4553 return -EINVAL;
4554
4555 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4556 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4557
4c476991
JB		 4558 if (!rdev->ops->add_mpath)
4559 return -EOPNOTSUPP;
35a8efe1 4560
4c476991
JB		 4561 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4562 return -EOPNOTSUPP;
2ec600d6 4563
e35e4d28 4564 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4565}
4566
4567static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4568{
4c476991
JB		 4569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4570 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4571 u8 *dst = NULL;
4572
4573 if (info->attrs[NL80211_ATTR_MAC])
4574 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4575
4c476991
JB		 4576 if (!rdev->ops->del_mpath)
4577 return -EOPNOTSUPP;
3b85875a 4578
e35e4d28 4579 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4580}
4581
9f1ba906
JM		 4582static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4583{
4c476991
JB		 4584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4585 struct net_device *dev = info->user_ptr[1];
c56589ed 4586 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4587 struct bss_parameters params;
c56589ed 4588 int err;
9f1ba906
JM		 4589
4590 memset(&params, 0, sizeof(params));
4591 /* default to not changing parameters */
4592 params.use_cts_prot = -1;
4593 params.use_short_preamble = -1;
4594 params.use_short_slot_time = -1;
fd8aaaf3 4595 params.ap_isolate = -1;
50b12f59 4596 params.ht_opmode = -1;
53cabad7
JB		 4597 params.p2p_ctwindow = -1;
4598 params.p2p_opp_ps = -1;
9f1ba906
JM		 4599
4600 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4601 params.use_cts_prot =
4602 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4603 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4604 params.use_short_preamble =
4605 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4606 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4607 params.use_short_slot_time =
4608 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4609 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4610 params.basic_rates =
4611 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4612 params.basic_rates_len =
4613 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4614 }
fd8aaaf3
FF		 4615 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4616 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4617 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4618 params.ht_opmode =
4619 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4620
53cabad7
JB		 4621 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4622 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4623 return -EINVAL;
4624 params.p2p_ctwindow =
4625 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4626 if (params.p2p_ctwindow < 0)
4627 return -EINVAL;
4628 if (params.p2p_ctwindow != 0 &&
4629 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4630 return -EINVAL;
4631 }
4632
4633 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4634 u8 tmp;
4635
4636 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4637 return -EINVAL;
4638 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4639 if (tmp > 1)
4640 return -EINVAL;
4641 params.p2p_opp_ps = tmp;
4642 if (params.p2p_opp_ps &&
4643 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4644 return -EINVAL;
4645 }
4646
4c476991
JB		 4647 if (!rdev->ops->change_bss)
4648 return -EOPNOTSUPP;
9f1ba906 4649
074ac8df 4650 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4651 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4652 return -EOPNOTSUPP;
3b85875a 4653
c56589ed
SW		 4654 wdev_lock(wdev);
4655 err = rdev_change_bss(rdev, dev, &params);
4656 wdev_unlock(wdev);
4657
4658 return err;
9f1ba906
JM		 4659}
4660
b54452b0 4661static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4662 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4663 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4664 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4665 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4666 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4667 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4668 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4669};
4670
4671static int parse_reg_rule(struct nlattr *tb[],
4672 struct ieee80211_reg_rule *reg_rule)
4673{
4674 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4675 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4676
4677 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4678 return -EINVAL;
4679 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4680 return -EINVAL;
4681 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4682 return -EINVAL;
b0dfd2ea
JD		 4683 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4684 return -EINVAL;
b2e1b302
LR		 4685 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4686 return -EINVAL;
4687
4688 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4689
4690 freq_range->start_freq_khz =
4691 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4692 freq_range->end_freq_khz =
4693 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4694 freq_range->max_bandwidth_khz =
4695 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4696
4697 power_rule->max_eirp =
4698 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4699
4700 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4701 power_rule->max_antenna_gain =
4702 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4703
089027e5
JD		 4704 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4705 reg_rule->dfs_cac_ms =
4706 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4707
b2e1b302
LR		 4708 return 0;
4709}
4710
4711static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4712{
b2e1b302 4713 char *data = NULL;
57b5ce07 4714 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4715
80778f18
LR		 4716 /*
4717 * You should only get this when cfg80211 hasn't yet initialized
4718 * completely when built-in to the kernel right between the time
4719 * window between nl80211_init() and regulatory_init(), if that is
4720 * even possible.
4721 */
458f4f9e 4722 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4723 return -EINPROGRESS;
80778f18 4724
57b5ce07
LR		 4725 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4726 user_reg_hint_type =
4727 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4728 else
4729 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4730
4731 switch (user_reg_hint_type) {
4732 case NL80211_USER_REG_HINT_USER:
4733 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4734 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4735 return -EINVAL;
4736
4737 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4738 return regulatory_hint_user(data, user_reg_hint_type);
4739 case NL80211_USER_REG_HINT_INDOOR:
4740 return regulatory_hint_indoor_user();
57b5ce07
LR		 4741 default:
4742 return -EINVAL;
4743 }
b2e1b302
LR		 4744}
4745
24bdd9f4 4746static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4747 struct genl_info *info)
93da9cc1 4748{
4c476991 4749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4750 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4751 struct wireless_dev *wdev = dev->ieee80211_ptr;
4752 struct mesh_config cur_params;
4753 int err = 0;
93da9cc1 4754 void *hdr;
4755 struct nlattr *pinfoattr;
4756 struct sk_buff *msg;
4757
29cbe68c
JB		 4758 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4759 return -EOPNOTSUPP;
4760
24bdd9f4 4761 if (!rdev->ops->get_mesh_config)
4c476991 4762 return -EOPNOTSUPP;
f3f92586 4763
29cbe68c
JB		 4764 wdev_lock(wdev);
4765 /* If not connected, get default parameters */
4766 if (!wdev->mesh_id_len)
4767 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4768 else
e35e4d28 4769 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4770 wdev_unlock(wdev);
4771
93da9cc1 4772 if (err)
4c476991 4773 return err;
93da9cc1 4774
4775 /* Draw up a netlink message to send back */
fd2120ca 4776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4777 if (!msg)
4778 return -ENOMEM;
15e47304 4779 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4780 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4781 if (!hdr)
efe1cf0c 4782 goto out;
24bdd9f4 4783 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4784 if (!pinfoattr)
4785 goto nla_put_failure;
9360ffd1
DM		 4786 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4787 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4788 cur_params.dot11MeshRetryTimeout) ||
4789 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4790 cur_params.dot11MeshConfirmTimeout) ||
4791 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4792 cur_params.dot11MeshHoldingTimeout) ||
4793 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4794 cur_params.dot11MeshMaxPeerLinks) ||
4795 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4796 cur_params.dot11MeshMaxRetries) ||
4797 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4798 cur_params.dot11MeshTTL) ||
4799 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4800 cur_params.element_ttl) ||
4801 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4802 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4803 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4804 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4805 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4806 cur_params.dot11MeshHWMPmaxPREQretries) ||
4807 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4808 cur_params.path_refresh_time) ||
4809 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4810 cur_params.min_discovery_timeout) ||
4811 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4812 cur_params.dot11MeshHWMPactivePathTimeout) ||
4813 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4814 cur_params.dot11MeshHWMPpreqMinInterval) ||
4815 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4816 cur_params.dot11MeshHWMPperrMinInterval) ||
4817 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4818 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4819 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4820 cur_params.dot11MeshHWMPRootMode) ||
4821 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4822 cur_params.dot11MeshHWMPRannInterval) ||
4823 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4824 cur_params.dot11MeshGateAnnouncementProtocol) ||
4825 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4826 cur_params.dot11MeshForwarding) ||
4827 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4828 cur_params.rssi_threshold) ||
4829 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4830 cur_params.ht_opmode) ||
4831 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4832 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4833 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4834 cur_params.dot11MeshHWMProotInterval) ||
4835 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4836 cur_params.dot11MeshHWMPconfirmationInterval) ||
4837 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4838 cur_params.power_mode) ||
4839 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4840 cur_params.dot11MeshAwakeWindowDuration) ||
4841 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4842 cur_params.plink_timeout))
9360ffd1 4843 goto nla_put_failure;
93da9cc1 4844 nla_nest_end(msg, pinfoattr);
4845 genlmsg_end(msg, hdr);
4c476991 4846 return genlmsg_reply(msg, info);
93da9cc1 4847
3b85875a 4848 nla_put_failure:
93da9cc1 4849 genlmsg_cancel(msg, hdr);
efe1cf0c 4850 out:
d080e275 4851 nlmsg_free(msg);
4c476991 4852 return -ENOBUFS;
93da9cc1 4853}
4854
b54452b0 4855static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4856 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4857 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4858 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4859 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4860 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4861 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4862 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4863 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4864 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4865 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4866 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4867 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4868 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4869 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4870 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4871 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4872 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4873 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4874 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4875 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4876 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4877 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4878 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4879 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4880 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4881 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4882 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4883 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4884};
4885
c80d545d
JC		 4886static const struct nla_policy
4887 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4888 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4889 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4890 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4891 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4892 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4893 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4894 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4895 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4896 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4897};
4898
24bdd9f4 4899static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4900 struct mesh_config *cfg,
4901 u32 *mask_out)
93da9cc1 4902{
93da9cc1 4903 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4904 u32 mask = 0;
93da9cc1 4905
ea54fba2
MP		 4906#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4907do { \
4908 if (tb[attr]) { \
4909 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4910 return -EINVAL; \
4911 cfg->param = fn(tb[attr]); \
4912 mask |= (1 << (attr - 1)); \
4913 } \
4914} while (0)
bd90fdcc
JB		 4915
4916
24bdd9f4 4917 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4918 return -EINVAL;
4919 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4920 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4921 nl80211_meshconf_params_policy))
93da9cc1 4922 return -EINVAL;
4923
93da9cc1 4924 /* This makes sure that there aren't more than 32 mesh config
4925 * parameters (otherwise our bitfield scheme would not work.) */
4926 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4927
4928 /* Fill in the params struct */
ea54fba2 4929 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4930 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4931 nla_get_u16);
ea54fba2 4932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4933 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4934 nla_get_u16);
ea54fba2 4935 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4936 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4937 nla_get_u16);
ea54fba2 4938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4939 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4940 nla_get_u16);
ea54fba2 4941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4942 mask, NL80211_MESHCONF_MAX_RETRIES,
4943 nla_get_u8);
ea54fba2 4944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4945 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4947 mask, NL80211_MESHCONF_ELEMENT_TTL,
4948 nla_get_u8);
ea54fba2 4949 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4950 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4951 nla_get_u8);
ea54fba2
MP		 4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4953 1, 255, mask,
a4f606ea
CYY		 4954 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4955 nla_get_u32);
ea54fba2 4956 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4957 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4958 nla_get_u8);
ea54fba2 4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4960 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4961 nla_get_u32);
ea54fba2 4962 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4963 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4964 nla_get_u16);
ea54fba2
MP		 4965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4966 1, 65535, mask,
a4f606ea
CYY		 4967 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4968 nla_get_u32);
93da9cc1 4969 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4970 1, 65535, mask,
4971 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4972 nla_get_u16);
dca7e943 4973 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4974 1, 65535, mask,
4975 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4976 nla_get_u16);
93da9cc1 4977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4978 dot11MeshHWMPnetDiameterTraversalTime,
4979 1, 65535, mask,
a4f606ea
CYY		 4980 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4981 nla_get_u16);
ea54fba2
MP		 4982 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4983 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4984 nla_get_u8);
4985 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4986 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4987 nla_get_u16);
63c5723b 4988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4989 dot11MeshGateAnnouncementProtocol, 0, 1,
4990 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4991 nla_get_u8);
ea54fba2 4992 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4993 mask, NL80211_MESHCONF_FORWARDING,
4994 nla_get_u8);
83374fe9 4995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4996 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4997 nla_get_s32);
ea54fba2 4998 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4999 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5000 nla_get_u16);
5001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5002 1, 65535, mask,
ac1073a6
CYY		 5003 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5004 nla_get_u32);
ea54fba2 5005 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5006 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5007 nla_get_u16);
5008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5009 dot11MeshHWMPconfirmationInterval,
5010 1, 65535, mask,
728b19e5 5011 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5012 nla_get_u16);
3b1c5a53
MP		 5013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5014 NL80211_MESH_POWER_ACTIVE,
5015 NL80211_MESH_POWER_MAX,
5016 mask, NL80211_MESHCONF_POWER_MODE,
5017 nla_get_u32);
5018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5019 0, 65535, mask,
5020 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5021 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5022 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5023 nla_get_u32);
bd90fdcc
JB		 5024 if (mask_out)
5025 *mask_out = mask;
c80d545d 5026
bd90fdcc
JB		 5027 return 0;
5028
5029#undef FILL_IN_MESH_PARAM_IF_SET
5030}
5031
c80d545d
JC		 5032static int nl80211_parse_mesh_setup(struct genl_info *info,
5033 struct mesh_setup *setup)
5034{
bb2798d4 5035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5036 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5037
5038 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5039 return -EINVAL;
5040 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5041 info->attrs[NL80211_ATTR_MESH_SETUP],
5042 nl80211_mesh_setup_params_policy))
5043 return -EINVAL;
5044
d299a1f2
JC		 5045 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5046 setup->sync_method =
5047 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5048 IEEE80211_SYNC_METHOD_VENDOR :
5049 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5050
c80d545d
JC		 5051 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5052 setup->path_sel_proto =
5053 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5054 IEEE80211_PATH_PROTOCOL_VENDOR :
5055 IEEE80211_PATH_PROTOCOL_HWMP;
5056
5057 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5058 setup->path_metric =
5059 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5060 IEEE80211_PATH_METRIC_VENDOR :
5061 IEEE80211_PATH_METRIC_AIRTIME;
5062
581a8b0f
JC		 5063
5064 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5065 struct nlattr *ieattr =
581a8b0f 5066 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5067 if (!is_valid_ie_attr(ieattr))
5068 return -EINVAL;
581a8b0f
JC		 5069 setup->ie = nla_data(ieattr);
5070 setup->ie_len = nla_len(ieattr);
c80d545d 5071 }
bb2798d4
TP		 5072 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5073 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5074 return -EINVAL;
5075 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5076 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5077 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5078 if (setup->is_secure)
5079 setup->user_mpm = true;
c80d545d 5080
6e16d90b
CT		 5081 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5082 if (!setup->user_mpm)
5083 return -EINVAL;
5084 setup->auth_id =
5085 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5086 }
5087
c80d545d
JC		 5088 return 0;
5089}
5090
24bdd9f4 5091static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5092 struct genl_info *info)
bd90fdcc
JB		 5093{
5094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5095 struct net_device *dev = info->user_ptr[1];
29cbe68c 5096 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5097 struct mesh_config cfg;
5098 u32 mask;
5099 int err;
5100
29cbe68c
JB		 5101 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5102 return -EOPNOTSUPP;
5103
24bdd9f4 5104 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5105 return -EOPNOTSUPP;
5106
24bdd9f4 5107 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5108 if (err)
5109 return err;
5110
29cbe68c
JB		 5111 wdev_lock(wdev);
5112 if (!wdev->mesh_id_len)
5113 err = -ENOLINK;
5114
5115 if (!err)
e35e4d28 5116 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5117
5118 wdev_unlock(wdev);
5119
5120 return err;
93da9cc1 5121}
5122
f130347c
LR		 5123static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5124{
458f4f9e 5125 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5126 struct sk_buff *msg;
5127 void *hdr = NULL;
5128 struct nlattr *nl_reg_rules;
5129 unsigned int i;
f130347c
LR		 5130
5131 if (!cfg80211_regdomain)
5fe231e8 5132 return -EINVAL;
f130347c 5133
fd2120ca 5134 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5135 if (!msg)
5136 return -ENOBUFS;
f130347c 5137
15e47304 5138 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5139 NL80211_CMD_GET_REG);
5140 if (!hdr)
efe1cf0c 5141 goto put_failure;
f130347c 5142
57b5ce07
LR		 5143 if (reg_last_request_cell_base() &&
5144 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5145 NL80211_USER_REG_HINT_CELL_BASE))
5146 goto nla_put_failure;
5147
458f4f9e
JB		 5148 rcu_read_lock();
5149 regdom = rcu_dereference(cfg80211_regdomain);
5150
5151 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5152 (regdom->dfs_region &&
5153 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5154 goto nla_put_failure_rcu;
5155
f130347c
LR		 5156 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5157 if (!nl_reg_rules)
458f4f9e 5158 goto nla_put_failure_rcu;
f130347c 5159
458f4f9e 5160 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5161 struct nlattr *nl_reg_rule;
5162 const struct ieee80211_reg_rule *reg_rule;
5163 const struct ieee80211_freq_range *freq_range;
5164 const struct ieee80211_power_rule *power_rule;
97524820 5165 unsigned int max_bandwidth_khz;
f130347c 5166
458f4f9e 5167 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5168 freq_range = &reg_rule->freq_range;
5169 power_rule = &reg_rule->power_rule;
5170
5171 nl_reg_rule = nla_nest_start(msg, i);
5172 if (!nl_reg_rule)
458f4f9e 5173 goto nla_put_failure_rcu;
f130347c 5174
97524820
JD		 5175 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5176 if (!max_bandwidth_khz)
5177 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5178 reg_rule);
5179
9360ffd1
DM		 5180 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5181 reg_rule->flags) ||
5182 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5183 freq_range->start_freq_khz) ||
5184 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5185 freq_range->end_freq_khz) ||
5186 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5187 max_bandwidth_khz) ||
9360ffd1
DM		 5188 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5189 power_rule->max_antenna_gain) ||
5190 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5191 power_rule->max_eirp) ||
5192 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5193 reg_rule->dfs_cac_ms))
458f4f9e 5194 goto nla_put_failure_rcu;
f130347c
LR		 5195
5196 nla_nest_end(msg, nl_reg_rule);
5197 }
458f4f9e 5198 rcu_read_unlock();
f130347c
LR		 5199
5200 nla_nest_end(msg, nl_reg_rules);
5201
5202 genlmsg_end(msg, hdr);
5fe231e8 5203 return genlmsg_reply(msg, info);
f130347c 5204
458f4f9e
JB		 5205nla_put_failure_rcu:
5206 rcu_read_unlock();
f130347c
LR		 5207nla_put_failure:
5208 genlmsg_cancel(msg, hdr);
efe1cf0c 5209put_failure:
d080e275 5210 nlmsg_free(msg);
5fe231e8 5211 return -EMSGSIZE;
f130347c
LR		 5212}
5213
b2e1b302
LR		 5214static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5215{
5216 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5217 struct nlattr *nl_reg_rule;
5218 char *alpha2 = NULL;
5219 int rem_reg_rules = 0, r = 0;
5220 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5221 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5222 struct ieee80211_regdomain *rd = NULL;
5223
5224 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5225 return -EINVAL;
5226
5227 if (!info->attrs[NL80211_ATTR_REG_RULES])
5228 return -EINVAL;
5229
5230 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5231
8b60b078
LR		 5232 if (info->attrs[NL80211_ATTR_DFS_REGION])
5233 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5234
b2e1b302 5235 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5236 rem_reg_rules) {
b2e1b302
LR		 5237 num_rules++;
5238 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5239 return -EINVAL;
b2e1b302
LR		 5240 }
5241
e438768f
LR		 5242 if (!reg_is_valid_request(alpha2))
5243 return -EINVAL;
5244
b2e1b302 5245 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5246 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5247
5248 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5249 if (!rd)
5250 return -ENOMEM;
b2e1b302
LR		 5251
5252 rd->n_reg_rules = num_rules;
5253 rd->alpha2[0] = alpha2[0];
5254 rd->alpha2[1] = alpha2[1];
5255
8b60b078
LR		 5256 /*
5257 * Disable DFS master mode if the DFS region was
5258 * not supported or known on this kernel.
5259 */
5260 if (reg_supported_dfs_region(dfs_region))
5261 rd->dfs_region = dfs_region;
5262
b2e1b302 5263 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5264 rem_reg_rules) {
ae811e21
JB		 5265 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5266 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5267 reg_rule_policy);
5268 if (r)
5269 goto bad_reg;
b2e1b302
LR		 5270 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5271 if (r)
5272 goto bad_reg;
5273
5274 rule_idx++;
5275
d0e18f83
LR		 5276 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5277 r = -EINVAL;
b2e1b302 5278 goto bad_reg;
d0e18f83 5279 }
b2e1b302
LR		 5280 }
5281
b2e1b302 5282 r = set_regdom(rd);
6913b49a 5283 /* set_regdom took ownership */
1a919318 5284 rd = NULL;
b2e1b302 5285
d2372b31 5286 bad_reg:
b2e1b302 5287 kfree(rd);
d0e18f83 5288 return r;
b2e1b302
LR		 5289}
5290
83f5e2cf
JB		 5291static int validate_scan_freqs(struct nlattr *freqs)
5292{
5293 struct nlattr *attr1, *attr2;
5294 int n_channels = 0, tmp1, tmp2;
5295
5296 nla_for_each_nested(attr1, freqs, tmp1) {
5297 n_channels++;
5298 /*
5299 * Some hardware has a limited channel list for
5300 * scanning, and it is pretty much nonsensical
5301 * to scan for a channel twice, so disallow that
5302 * and don't require drivers to check that the
5303 * channel list they get isn't longer than what
5304 * they can scan, as long as they can scan all
5305 * the channels they registered at once.
5306 */
5307 nla_for_each_nested(attr2, freqs, tmp2)
5308 if (attr1 != attr2 &&
5309 nla_get_u32(attr1) == nla_get_u32(attr2))
5310 return 0;
5311 }
5312
5313 return n_channels;
5314}
5315
2a519311
JB		 5316static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5317{
4c476991 5318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5319 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5320 struct cfg80211_scan_request *request;
2a519311
JB		 5321 struct nlattr *attr;
5322 struct wiphy *wiphy;
83f5e2cf 5323 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5324 size_t ie_len;
2a519311 5325
f4a11bb0
JB		 5326 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5327 return -EINVAL;
5328
79c97e97 5329 wiphy = &rdev->wiphy;
2a519311 5330
4c476991
JB		 5331 if (!rdev->ops->scan)
5332 return -EOPNOTSUPP;
2a519311 5333
f9d15d16 5334 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5335 err = -EBUSY;
5336 goto unlock;
5337 }
2a519311
JB		 5338
5339 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5340 n_channels = validate_scan_freqs(
5341 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5342 if (!n_channels) {
5343 err = -EINVAL;
5344 goto unlock;
5345 }
2a519311 5346 } else {
bdfbec2d 5347 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5348 }
5349
5350 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5351 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5352 n_ssids++;
5353
f9f47529
JB		 5354 if (n_ssids > wiphy->max_scan_ssids) {
5355 err = -EINVAL;
5356 goto unlock;
5357 }
2a519311 5358
70692ad2
JM		 5359 if (info->attrs[NL80211_ATTR_IE])
5360 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5361 else
5362 ie_len = 0;
5363
f9f47529
JB		 5364 if (ie_len > wiphy->max_scan_ie_len) {
5365 err = -EINVAL;
5366 goto unlock;
5367 }
18a83659 5368
2a519311 5369 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5370 + sizeof(*request->ssids) * n_ssids
5371 + sizeof(*request->channels) * n_channels
70692ad2 5372 + ie_len, GFP_KERNEL);
f9f47529
JB		 5373 if (!request) {
5374 err = -ENOMEM;
5375 goto unlock;
5376 }
2a519311 5377
2a519311 5378 if (n_ssids)
5ba63533 5379 request->ssids = (void *)&request->channels[n_channels];
2a519311 5380 request->n_ssids = n_ssids;
70692ad2
JM		 5381 if (ie_len) {
5382 if (request->ssids)
5383 request->ie = (void *)(request->ssids + n_ssids);
5384 else
5385 request->ie = (void *)(request->channels + n_channels);
5386 }
2a519311 5387
584991dc 5388 i = 0;
2a519311
JB		 5389 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5390 /* user specified, bail out if channel not found */
2a519311 5391 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5392 struct ieee80211_channel *chan;
5393
5394 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5395
5396 if (!chan) {
2a519311
JB		 5397 err = -EINVAL;
5398 goto out_free;
5399 }
584991dc
JB		 5400
5401 /* ignore disabled channels */
5402 if (chan->flags & IEEE80211_CHAN_DISABLED)
5403 continue;
5404
5405 request->channels[i] = chan;
2a519311
JB		 5406 i++;
5407 }
5408 } else {
34850ab2
JB		 5409 enum ieee80211_band band;
5410
2a519311 5411 /* all channels */
2a519311
JB		 5412 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5413 int j;
5414 if (!wiphy->bands[band])
5415 continue;
5416 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5417 struct ieee80211_channel *chan;
5418
5419 chan = &wiphy->bands[band]->channels[j];
5420
5421 if (chan->flags & IEEE80211_CHAN_DISABLED)
5422 continue;
5423
5424 request->channels[i] = chan;
2a519311
JB		 5425 i++;
5426 }
5427 }
5428 }
5429
584991dc
JB		 5430 if (!i) {
5431 err = -EINVAL;
5432 goto out_free;
5433 }
5434
5435 request->n_channels = i;
5436
2a519311
JB		 5437 i = 0;
5438 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5439 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5440 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5441 err = -EINVAL;
5442 goto out_free;
5443 }
57a27e1d 5444 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5445 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5446 i++;
5447 }
5448 }
5449
70692ad2
JM		 5450 if (info->attrs[NL80211_ATTR_IE]) {
5451 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5452 memcpy((void *)request->ie,
5453 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5454 request->ie_len);
5455 }
5456
34850ab2 5457 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5458 if (wiphy->bands[i])
5459 request->rates[i] =
5460 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5461
5462 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5463 nla_for_each_nested(attr,
5464 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5465 tmp) {
5466 enum ieee80211_band band = nla_type(attr);
5467
84404623 5468 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5469 err = -EINVAL;
5470 goto out_free;
5471 }
1b09cd82
FF		 5472
5473 if (!wiphy->bands[band])
5474 continue;
5475
34850ab2
JB		 5476 err = ieee80211_get_ratemask(wiphy->bands[band],
5477 nla_data(attr),
5478 nla_len(attr),
5479 &request->rates[band]);
5480 if (err)
5481 goto out_free;
5482 }
5483 }
5484
46856bbf 5485 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5486 request->flags = nla_get_u32(
5487 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5488 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5489 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5490 err = -EOPNOTSUPP;
5491 goto out_free;
5492 }
5493 }
ed473771 5494
e9f935e3
RM		 5495 request->no_cck =
5496 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5497
fd014284 5498 request->wdev = wdev;
79c97e97 5499 request->wiphy = &rdev->wiphy;
15d6030b 5500 request->scan_start = jiffies;
2a519311 5501
79c97e97 5502 rdev->scan_req = request;
e35e4d28 5503 err = rdev_scan(rdev, request);
2a519311 5504
463d0183 5505 if (!err) {
fd014284
JB		 5506 nl80211_send_scan_start(rdev, wdev);
5507 if (wdev->netdev)
5508 dev_hold(wdev->netdev);
4c476991 5509 } else {
2a519311 5510 out_free:
79c97e97 5511 rdev->scan_req = NULL;
2a519311
JB		 5512 kfree(request);
5513 }
3b85875a 5514
f9f47529 5515 unlock:
2a519311
JB		 5516 return err;
5517}
5518
807f8a8c
LC		 5519static int nl80211_start_sched_scan(struct sk_buff *skb,
5520 struct genl_info *info)
5521{
5522 struct cfg80211_sched_scan_request *request;
5523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5524 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5525 struct nlattr *attr;
5526 struct wiphy *wiphy;
a1f1c21c 5527 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5528 u32 interval;
807f8a8c
LC		 5529 enum ieee80211_band band;
5530 size_t ie_len;
a1f1c21c 5531 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5532 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5533
5534 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5535 !rdev->ops->sched_scan_start)
5536 return -EOPNOTSUPP;
5537
5538 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5539 return -EINVAL;
5540
bbe6ad6d
LC		 5541 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5542 return -EINVAL;
5543
5544 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5545 if (interval == 0)
5546 return -EINVAL;
5547
807f8a8c
LC		 5548 wiphy = &rdev->wiphy;
5549
5550 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5551 n_channels = validate_scan_freqs(
5552 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5553 if (!n_channels)
5554 return -EINVAL;
5555 } else {
bdfbec2d 5556 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5557 }
5558
5559 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5560 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5561 tmp)
5562 n_ssids++;
5563
93b6aa69 5564 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5565 return -EINVAL;
5566
ea73cbce
JB		 5567 /*
5568 * First, count the number of 'real' matchsets. Due to an issue with
5569 * the old implementation, matchsets containing only the RSSI attribute
5570 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5571 * RSSI for all matchsets, rather than their own matchset for reporting
5572 * all APs with a strong RSSI. This is needed to be compatible with
5573 * older userspace that treated a matchset with only the RSSI as the
5574 * global RSSI for all other matchsets - if there are other matchsets.
5575 */
5576 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5577 nla_for_each_nested(attr,
5578 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5579 tmp) {
5580 struct nlattr *rssi;
5581
5582 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5583 nla_data(attr), nla_len(attr),
5584 nl80211_match_policy);
5585 if (err)
5586 return err;
5587 /* add other standalone attributes here */
5588 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5589 n_match_sets++;
5590 continue;
5591 }
5592 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5593 if (rssi)
5594 default_match_rssi = nla_get_s32(rssi);
5595 }
5596 }
5597
5598 /* However, if there's no other matchset, add the RSSI one */
5599 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5600 n_match_sets = 1;
a1f1c21c
LC		 5601
5602 if (n_match_sets > wiphy->max_match_sets)
5603 return -EINVAL;
5604
807f8a8c
LC		 5605 if (info->attrs[NL80211_ATTR_IE])
5606 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5607 else
5608 ie_len = 0;
5609
5a865bad 5610 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5611 return -EINVAL;
5612
c10841ca
LC		 5613 if (rdev->sched_scan_req) {
5614 err = -EINPROGRESS;
5615 goto out;
5616 }
5617
807f8a8c 5618 request = kzalloc(sizeof(*request)
a2cd43c5 5619 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5620 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5621 + sizeof(*request->channels) * n_channels
807f8a8c 5622 + ie_len, GFP_KERNEL);
c10841ca
LC		 5623 if (!request) {
5624 err = -ENOMEM;
5625 goto out;
5626 }
807f8a8c
LC		 5627
5628 if (n_ssids)
5629 request->ssids = (void *)&request->channels[n_channels];
5630 request->n_ssids = n_ssids;
5631 if (ie_len) {
5632 if (request->ssids)
5633 request->ie = (void *)(request->ssids + n_ssids);
5634 else
5635 request->ie = (void *)(request->channels + n_channels);
5636 }
5637
a1f1c21c
LC		 5638 if (n_match_sets) {
5639 if (request->ie)
5640 request->match_sets = (void *)(request->ie + ie_len);
5641 else if (request->ssids)
5642 request->match_sets =
5643 (void *)(request->ssids + n_ssids);
5644 else
5645 request->match_sets =
5646 (void *)(request->channels + n_channels);
5647 }
5648 request->n_match_sets = n_match_sets;
5649
807f8a8c
LC		 5650 i = 0;
5651 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5652 /* user specified, bail out if channel not found */
5653 nla_for_each_nested(attr,
5654 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5655 tmp) {
5656 struct ieee80211_channel *chan;
5657
5658 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5659
5660 if (!chan) {
5661 err = -EINVAL;
5662 goto out_free;
5663 }
5664
5665 /* ignore disabled channels */
5666 if (chan->flags & IEEE80211_CHAN_DISABLED)
5667 continue;
5668
5669 request->channels[i] = chan;
5670 i++;
5671 }
5672 } else {
5673 /* all channels */
5674 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5675 int j;
5676 if (!wiphy->bands[band])
5677 continue;
5678 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5679 struct ieee80211_channel *chan;
5680
5681 chan = &wiphy->bands[band]->channels[j];
5682
5683 if (chan->flags & IEEE80211_CHAN_DISABLED)
5684 continue;
5685
5686 request->channels[i] = chan;
5687 i++;
5688 }
5689 }
5690 }
5691
5692 if (!i) {
5693 err = -EINVAL;
5694 goto out_free;
5695 }
5696
5697 request->n_channels = i;
5698
5699 i = 0;
5700 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5701 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5702 tmp) {
57a27e1d 5703 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5704 err = -EINVAL;
5705 goto out_free;
5706 }
57a27e1d 5707 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5708 memcpy(request->ssids[i].ssid, nla_data(attr),
5709 nla_len(attr));
807f8a8c
LC		 5710 i++;
5711 }
5712 }
5713
a1f1c21c
LC		 5714 i = 0;
5715 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5716 nla_for_each_nested(attr,
5717 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5718 tmp) {
88e920b4 5719 struct nlattr *ssid, *rssi;
a1f1c21c 5720
ae811e21
JB		 5721 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5722 nla_data(attr), nla_len(attr),
5723 nl80211_match_policy);
5724 if (err)
5725 goto out_free;
4a4ab0d7 5726 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5727 if (ssid) {
ea73cbce
JB		 5728 if (WARN_ON(i >= n_match_sets)) {
5729 /* this indicates a programming error,
5730 * the loop above should have verified
5731 * things properly
5732 */
5733 err = -EINVAL;
5734 goto out_free;
5735 }
5736
a1f1c21c
LC		 5737 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5738 err = -EINVAL;
5739 goto out_free;
5740 }
5741 memcpy(request->match_sets[i].ssid.ssid,
5742 nla_data(ssid), nla_len(ssid));
5743 request->match_sets[i].ssid.ssid_len =
5744 nla_len(ssid);
ea73cbce
JB		 5745 /* special attribute - old implemenation w/a */
5746 request->match_sets[i].rssi_thold =
5747 default_match_rssi;
5748 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5749 if (rssi)
5750 request->match_sets[i].rssi_thold =
5751 nla_get_s32(rssi);
a1f1c21c
LC		 5752 }
5753 i++;
5754 }
ea73cbce
JB		 5755
5756 /* there was no other matchset, so the RSSI one is alone */
5757 if (i == 0)
5758 request->match_sets[0].rssi_thold = default_match_rssi;
5759
5760 request->min_rssi_thold = INT_MAX;
5761 for (i = 0; i < n_match_sets; i++)
5762 request->min_rssi_thold =
5763 min(request->match_sets[i].rssi_thold,
5764 request->min_rssi_thold);
5765 } else {
5766 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5767 }
5768
9900e484
JB		 5769 if (ie_len) {
5770 request->ie_len = ie_len;
807f8a8c
LC		 5771 memcpy((void *)request->ie,
5772 nla_data(info->attrs[NL80211_ATTR_IE]),
5773 request->ie_len);
5774 }
5775
46856bbf 5776 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5777 request->flags = nla_get_u32(
5778 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5779 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5780 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5781 err = -EOPNOTSUPP;
5782 goto out_free;
5783 }
5784 }
ed473771 5785
807f8a8c
LC		 5786 request->dev = dev;
5787 request->wiphy = &rdev->wiphy;
bbe6ad6d 5788 request->interval = interval;
15d6030b 5789 request->scan_start = jiffies;
807f8a8c 5790
e35e4d28 5791 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5792 if (!err) {
5793 rdev->sched_scan_req = request;
5794 nl80211_send_sched_scan(rdev, dev,
5795 NL80211_CMD_START_SCHED_SCAN);
5796 goto out;
5797 }
5798
5799out_free:
5800 kfree(request);
5801out:
5802 return err;
5803}
5804
5805static int nl80211_stop_sched_scan(struct sk_buff *skb,
5806 struct genl_info *info)
5807{
5808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5809
5810 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5811 !rdev->ops->sched_scan_stop)
5812 return -EOPNOTSUPP;
5813
5fe231e8 5814 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5815}
5816
04f39047
SW		 5817static int nl80211_start_radar_detection(struct sk_buff *skb,
5818 struct genl_info *info)
5819{
5820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5821 struct net_device *dev = info->user_ptr[1];
5822 struct wireless_dev *wdev = dev->ieee80211_ptr;
5823 struct cfg80211_chan_def chandef;
55f7435c 5824 enum nl80211_dfs_regions dfs_region;
31559f35 5825 unsigned int cac_time_ms;
04f39047
SW		 5826 int err;
5827
55f7435c
LR		 5828 dfs_region = reg_get_dfs_region(wdev->wiphy);
5829 if (dfs_region == NL80211_DFS_UNSET)
5830 return -EINVAL;
5831
04f39047
SW		 5832 err = nl80211_parse_chandef(rdev, info, &chandef);
5833 if (err)
5834 return err;
5835
ff311bc1
SW		 5836 if (netif_carrier_ok(dev))
5837 return -EBUSY;
5838
04f39047
SW		 5839 if (wdev->cac_started)
5840 return -EBUSY;
5841
2beb6dab 5842 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5843 wdev->iftype);
04f39047
SW		 5844 if (err < 0)
5845 return err;
5846
5847 if (err == 0)
5848 return -EINVAL;
5849
fe7c3a1f 5850 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5851 return -EINVAL;
5852
5853 if (!rdev->ops->start_radar_detection)
5854 return -EOPNOTSUPP;
5855
31559f35
JD		 5856 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5857 if (WARN_ON(!cac_time_ms))
5858 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5859
5860 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5861 cac_time_ms);
04f39047 5862 if (!err) {
9e0e2961 5863 wdev->chandef = chandef;
04f39047
SW		 5864 wdev->cac_started = true;
5865 wdev->cac_start_time = jiffies;
31559f35 5866 wdev->cac_time_ms = cac_time_ms;
04f39047 5867 }
04f39047
SW		 5868 return err;
5869}
5870
16ef1fe2
SW		 5871static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5872{
5873 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5874 struct net_device *dev = info->user_ptr[1];
5875 struct wireless_dev *wdev = dev->ieee80211_ptr;
5876 struct cfg80211_csa_settings params;
5877 /* csa_attrs is defined static to avoid waste of stack size - this
5878 * function is called under RTNL lock, so this should not be a problem.
5879 */
5880 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5881 u8 radar_detect_width = 0;
5882 int err;
ee4bc9e7 5883 bool need_new_beacon = false;
9a774c78 5884 int len, i;
16ef1fe2
SW		 5885
5886 if (!rdev->ops->channel_switch ||
5887 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5888 return -EOPNOTSUPP;
5889
ee4bc9e7
SW		 5890 switch (dev->ieee80211_ptr->iftype) {
5891 case NL80211_IFTYPE_AP:
5892 case NL80211_IFTYPE_P2P_GO:
5893 need_new_beacon = true;
5894
5895 /* useless if AP is not running */
5896 if (!wdev->beacon_interval)
1ff79dfa 5897 return -ENOTCONN;
ee4bc9e7
SW		 5898 break;
5899 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5900 if (!wdev->ssid_len)
5901 return -ENOTCONN;
5902 break;
c6da674a 5903 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5904 if (!wdev->mesh_id_len)
5905 return -ENOTCONN;
ee4bc9e7
SW		 5906 break;
5907 default:
16ef1fe2 5908 return -EOPNOTSUPP;
ee4bc9e7 5909 }
16ef1fe2
SW		 5910
5911 memset(&params, 0, sizeof(params));
5912
5913 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5914 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5915 return -EINVAL;
5916
5917 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5918 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5919 return -EINVAL;
5920
5921 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5922
ee4bc9e7
SW		 5923 if (!need_new_beacon)
5924 goto skip_beacons;
5925
16ef1fe2
SW		 5926 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5927 if (err)
5928 return err;
5929
5930 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5931 info->attrs[NL80211_ATTR_CSA_IES],
5932 nl80211_policy);
5933 if (err)
5934 return err;
5935
5936 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5937 if (err)
5938 return err;
5939
5940 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5941 return -EINVAL;
5942
9a774c78
AO		 5943 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5944 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5945 return -EINVAL;
5946
9a774c78
AO		 5947 params.n_counter_offsets_beacon = len / sizeof(u16);
5948 if (rdev->wiphy.max_num_csa_counters &&
5949 (params.n_counter_offsets_beacon >
5950 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 5951 return -EINVAL;
5952
9a774c78
AO		 5953 params.counter_offsets_beacon =
5954 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5955
5956 /* sanity checks - counters should fit and be the same */
5957 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5958 u16 offset = params.counter_offsets_beacon[i];
5959
5960 if (offset >= params.beacon_csa.tail_len)
5961 return -EINVAL;
5962
5963 if (params.beacon_csa.tail[offset] != params.count)
5964 return -EINVAL;
5965 }
5966
16ef1fe2 5967 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 5968 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5969 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5970 return -EINVAL;
5971
9a774c78
AO		 5972 params.n_counter_offsets_presp = len / sizeof(u16);
5973 if (rdev->wiphy.max_num_csa_counters &&
5974 (params.n_counter_offsets_beacon >
5975 rdev->wiphy.max_num_csa_counters))
16ef1fe2 5976 return -EINVAL;
9a774c78
AO		 5977
5978 params.counter_offsets_presp =
5979 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5980
5981 /* sanity checks - counters should fit and be the same */
5982 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5983 u16 offset = params.counter_offsets_presp[i];
5984
5985 if (offset >= params.beacon_csa.probe_resp_len)
5986 return -EINVAL;
5987
5988 if (params.beacon_csa.probe_resp[offset] !=
5989 params.count)
5990 return -EINVAL;
5991 }
16ef1fe2
SW		 5992 }
5993
ee4bc9e7 5994skip_beacons:
16ef1fe2
SW		 5995 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5996 if (err)
5997 return err;
5998
174e0cd2
IP		 5999 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6000 wdev->iftype))
16ef1fe2
SW		 6001 return -EINVAL;
6002
2beb6dab
LC		 6003 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6004 &params.chandef,
6005 wdev->iftype);
6006 if (err < 0)
6007 return err;
6008
6009 if (err > 0) {
6010 radar_detect_width = BIT(params.chandef.width);
6011 params.radar_required = true;
16ef1fe2
SW		 6012 }
6013
73de86a3
LC		 6014 /* TODO: I left this here for now. With channel switch, the
6015 * verification is a bit more complicated, because we only do
6016 * it later when the channel switch really happens.
6017 */
16ef1fe2
SW		 6018 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
6019 params.chandef.chan,
6020 CHAN_MODE_SHARED,
6021 radar_detect_width);
6022 if (err)
6023 return err;
6024
6025 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6026 params.block_tx = true;
6027
c56589ed
SW		 6028 wdev_lock(wdev);
6029 err = rdev_channel_switch(rdev, dev, &params);
6030 wdev_unlock(wdev);
6031
6032 return err;
16ef1fe2
SW		 6033}
6034
9720bb3a
JB		 6035static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6036 u32 seq, int flags,
2a519311 6037 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6038 struct wireless_dev *wdev,
6039 struct cfg80211_internal_bss *intbss)
2a519311 6040{
48ab905d 6041 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6042 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6043 void *hdr;
6044 struct nlattr *bss;
8cef2c9d 6045 bool tsf = false;
48ab905d
JB		 6046
6047 ASSERT_WDEV_LOCK(wdev);
2a519311 6048
15e47304 6049 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6050 NL80211_CMD_NEW_SCAN_RESULTS);
6051 if (!hdr)
6052 return -1;
6053
9720bb3a
JB		 6054 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6055
97990a06
JB		 6056 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6057 goto nla_put_failure;
6058 if (wdev->netdev &&
9360ffd1
DM		 6059 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6060 goto nla_put_failure;
97990a06
JB		 6061 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6062 goto nla_put_failure;
2a519311
JB		 6063
6064 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6065 if (!bss)
6066 goto nla_put_failure;
9360ffd1 6067 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6068 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6069 goto nla_put_failure;
9caf0364
JB		 6070
6071 rcu_read_lock();
6072 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6073 if (ies) {
6074 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6075 goto fail_unlock_rcu;
6076 tsf = true;
6077 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6078 ies->len, ies->data))
6079 goto fail_unlock_rcu;
9caf0364
JB		 6080 }
6081 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6082 if (ies) {
6083 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6084 goto fail_unlock_rcu;
6085 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6086 ies->len, ies->data))
6087 goto fail_unlock_rcu;
9caf0364
JB		 6088 }
6089 rcu_read_unlock();
6090
9360ffd1
DM		 6091 if (res->beacon_interval &&
6092 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6093 goto nla_put_failure;
6094 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6095 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6096 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6097 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6098 jiffies_to_msecs(jiffies - intbss->ts)))
6099 goto nla_put_failure;
2a519311 6100
77965c97 6101 switch (rdev->wiphy.signal_type) {
2a519311 6102 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6103 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6104 goto nla_put_failure;
2a519311
JB		 6105 break;
6106 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6107 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6108 goto nla_put_failure;
2a519311
JB		 6109 break;
6110 default:
6111 break;
6112 }
6113
48ab905d 6114 switch (wdev->iftype) {
074ac8df 6115 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6116 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6117 if (intbss == wdev->current_bss &&
6118 nla_put_u32(msg, NL80211_BSS_STATUS,
6119 NL80211_BSS_STATUS_ASSOCIATED))
6120 goto nla_put_failure;
48ab905d
JB		 6121 break;
6122 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6123 if (intbss == wdev->current_bss &&
6124 nla_put_u32(msg, NL80211_BSS_STATUS,
6125 NL80211_BSS_STATUS_IBSS_JOINED))
6126 goto nla_put_failure;
48ab905d
JB		 6127 break;
6128 default:
6129 break;
6130 }
6131
2a519311
JB		 6132 nla_nest_end(msg, bss);
6133
6134 return genlmsg_end(msg, hdr);
6135
8cef2c9d
JB		 6136 fail_unlock_rcu:
6137 rcu_read_unlock();
2a519311
JB		 6138 nla_put_failure:
6139 genlmsg_cancel(msg, hdr);
6140 return -EMSGSIZE;
6141}
6142
97990a06 6143static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6144{
48ab905d 6145 struct cfg80211_registered_device *rdev;
2a519311 6146 struct cfg80211_internal_bss *scan;
48ab905d 6147 struct wireless_dev *wdev;
97990a06 6148 int start = cb->args[2], idx = 0;
2a519311
JB		 6149 int err;
6150
97990a06 6151 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6152 if (err)
6153 return err;
2a519311 6154
48ab905d
JB		 6155 wdev_lock(wdev);
6156 spin_lock_bh(&rdev->bss_lock);
6157 cfg80211_bss_expire(rdev);
6158
9720bb3a
JB		 6159 cb->seq = rdev->bss_generation;
6160
48ab905d 6161 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6162 if (++idx <= start)
6163 continue;
9720bb3a 6164 if (nl80211_send_bss(skb, cb,
2a519311 6165 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6166 rdev, wdev, scan) < 0) {
2a519311 6167 idx--;
67748893 6168 break;
2a519311
JB		 6169 }
6170 }
6171
48ab905d
JB		 6172 spin_unlock_bh(&rdev->bss_lock);
6173 wdev_unlock(wdev);
2a519311 6174
97990a06
JB		 6175 cb->args[2] = idx;
6176 nl80211_finish_wdev_dump(rdev);
2a519311 6177
67748893 6178 return skb->len;
2a519311
JB		 6179}
6180
15e47304 6181static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6182 int flags, struct net_device *dev,
6183 struct survey_info *survey)
6184{
6185 void *hdr;
6186 struct nlattr *infoattr;
6187
15e47304 6188 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6189 NL80211_CMD_NEW_SURVEY_RESULTS);
6190 if (!hdr)
6191 return -ENOMEM;
6192
9360ffd1
DM		 6193 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6194 goto nla_put_failure;
61fa713c
HS		 6195
6196 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6197 if (!infoattr)
6198 goto nla_put_failure;
6199
9360ffd1
DM		 6200 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6201 survey->channel->center_freq))
6202 goto nla_put_failure;
6203
6204 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6205 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6206 goto nla_put_failure;
6207 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6208 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6209 goto nla_put_failure;
6210 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6211 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6212 survey->channel_time))
6213 goto nla_put_failure;
6214 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6215 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6216 survey->channel_time_busy))
6217 goto nla_put_failure;
6218 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6219 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6220 survey->channel_time_ext_busy))
6221 goto nla_put_failure;
6222 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6223 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6224 survey->channel_time_rx))
6225 goto nla_put_failure;
6226 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6227 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6228 survey->channel_time_tx))
6229 goto nla_put_failure;
61fa713c
HS		 6230
6231 nla_nest_end(msg, infoattr);
6232
6233 return genlmsg_end(msg, hdr);
6234
6235 nla_put_failure:
6236 genlmsg_cancel(msg, hdr);
6237 return -EMSGSIZE;
6238}
6239
6240static int nl80211_dump_survey(struct sk_buff *skb,
6241 struct netlink_callback *cb)
6242{
6243 struct survey_info survey;
1b8ec87a 6244 struct cfg80211_registered_device *rdev;
97990a06
JB		 6245 struct wireless_dev *wdev;
6246 int survey_idx = cb->args[2];
61fa713c
HS		 6247 int res;
6248
1b8ec87a 6249 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6250 if (res)
6251 return res;
61fa713c 6252
97990a06
JB		 6253 if (!wdev->netdev) {
6254 res = -EINVAL;
6255 goto out_err;
6256 }
6257
1b8ec87a 6258 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6259 res = -EOPNOTSUPP;
6260 goto out_err;
6261 }
6262
6263 while (1) {
180cdc79
LR		 6264 struct ieee80211_channel *chan;
6265
1b8ec87a 6266 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6267 if (res == -ENOENT)
6268 break;
6269 if (res)
6270 goto out_err;
6271
180cdc79
LR		 6272 /* Survey without a channel doesn't make sense */
6273 if (!survey.channel) {
6274 res = -EINVAL;
6275 goto out;
6276 }
6277
1b8ec87a 6278 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6279 survey.channel->center_freq);
6280 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6281 survey_idx++;
6282 continue;
6283 }
6284
61fa713c 6285 if (nl80211_send_survey(skb,
15e47304 6286 NETLINK_CB(cb->skb).portid,
61fa713c 6287 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6288 wdev->netdev, &survey) < 0)
61fa713c
HS		 6289 goto out;
6290 survey_idx++;
6291 }
6292
6293 out:
97990a06 6294 cb->args[2] = survey_idx;
61fa713c
HS		 6295 res = skb->len;
6296 out_err:
1b8ec87a 6297 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6298 return res;
6299}
6300
b23aa676
SO		 6301static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6302{
6303 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6304 NL80211_WPA_VERSION_2));
6305}
6306
636a5d36
JM		 6307static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6308{
4c476991
JB		 6309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6310 struct net_device *dev = info->user_ptr[1];
19957bb3 6311 struct ieee80211_channel *chan;
e39e5b5e
JM		 6312 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6313 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6314 enum nl80211_auth_type auth_type;
fffd0934 6315 struct key_parse key;
d5cdfacb 6316 bool local_state_change;
636a5d36 6317
f4a11bb0
JB		 6318 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6319 return -EINVAL;
6320
6321 if (!info->attrs[NL80211_ATTR_MAC])
6322 return -EINVAL;
6323
1778092e
JM		 6324 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6325 return -EINVAL;
6326
19957bb3
JB		 6327 if (!info->attrs[NL80211_ATTR_SSID])
6328 return -EINVAL;
6329
6330 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6331 return -EINVAL;
6332
fffd0934
JB		 6333 err = nl80211_parse_key(info, &key);
6334 if (err)
6335 return err;
6336
6337 if (key.idx >= 0) {
e31b8213
JB		 6338 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6339 return -EINVAL;
fffd0934
JB		 6340 if (!key.p.key || !key.p.key_len)
6341 return -EINVAL;
6342 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6343 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6344 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6345 key.p.key_len != WLAN_KEY_LEN_WEP104))
6346 return -EINVAL;
6347 if (key.idx > 4)
6348 return -EINVAL;
6349 } else {
6350 key.p.key_len = 0;
6351 key.p.key = NULL;
6352 }
6353
afea0b7a
JB		 6354 if (key.idx >= 0) {
6355 int i;
6356 bool ok = false;
6357 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6358 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6359 ok = true;
6360 break;
6361 }
6362 }
4c476991
JB		 6363 if (!ok)
6364 return -EINVAL;
afea0b7a
JB		 6365 }
6366
4c476991
JB		 6367 if (!rdev->ops->auth)
6368 return -EOPNOTSUPP;
636a5d36 6369
074ac8df 6370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6371 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6372 return -EOPNOTSUPP;
eec60b03 6373
19957bb3 6374 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6375 chan = nl80211_get_valid_chan(&rdev->wiphy,
6376 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6377 if (!chan)
4c476991 6378 return -EINVAL;
636a5d36 6379
19957bb3
JB		 6380 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6381 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6382
6383 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6384 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6385 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6386 }
6387
19957bb3 6388 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6389 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6390 return -EINVAL;
636a5d36 6391
e39e5b5e
JM		 6392 if (auth_type == NL80211_AUTHTYPE_SAE &&
6393 !info->attrs[NL80211_ATTR_SAE_DATA])
6394 return -EINVAL;
6395
6396 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6397 if (auth_type != NL80211_AUTHTYPE_SAE)
6398 return -EINVAL;
6399 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6400 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6401 /* need to include at least Auth Transaction and Status Code */
6402 if (sae_data_len < 4)
6403 return -EINVAL;
6404 }
6405
d5cdfacb
JM		 6406 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6407
95de817b
JB		 6408 /*
6409 * Since we no longer track auth state, ignore
6410 * requests to only change local state.
6411 */
6412 if (local_state_change)
6413 return 0;
6414
91bf9b26
JB		 6415 wdev_lock(dev->ieee80211_ptr);
6416 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6417 ssid, ssid_len, ie, ie_len,
6418 key.p.key, key.p.key_len, key.idx,
6419 sae_data, sae_data_len);
6420 wdev_unlock(dev->ieee80211_ptr);
6421 return err;
636a5d36
JM		 6422}
6423
c0692b8f
JB		 6424static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6425 struct genl_info *info,
3dc27d25
JB		 6426 struct cfg80211_crypto_settings *settings,
6427 int cipher_limit)
b23aa676 6428{
c0b2bbd8
JB		 6429 memset(settings, 0, sizeof(*settings));
6430
b23aa676
SO		 6431 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6432
c0692b8f
JB		 6433 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6434 u16 proto;
6435 proto = nla_get_u16(
6436 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6437 settings->control_port_ethertype = cpu_to_be16(proto);
6438 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6439 proto != ETH_P_PAE)
6440 return -EINVAL;
6441 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6442 settings->control_port_no_encrypt = true;
6443 } else
6444 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6445
b23aa676
SO		 6446 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6447 void *data;
6448 int len, i;
6449
6450 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6451 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6452 settings->n_ciphers_pairwise = len / sizeof(u32);
6453
6454 if (len % sizeof(u32))
6455 return -EINVAL;
6456
3dc27d25 6457 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6458 return -EINVAL;
6459
6460 memcpy(settings->ciphers_pairwise, data, len);
6461
6462 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6463 if (!cfg80211_supported_cipher_suite(
6464 &rdev->wiphy,
b23aa676
SO		 6465 settings->ciphers_pairwise[i]))
6466 return -EINVAL;
6467 }
6468
6469 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6470 settings->cipher_group =
6471 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6472 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6473 settings->cipher_group))
b23aa676
SO		 6474 return -EINVAL;
6475 }
6476
6477 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6478 settings->wpa_versions =
6479 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6480 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6481 return -EINVAL;
6482 }
6483
6484 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6485 void *data;
6d30240e 6486 int len;
b23aa676
SO		 6487
6488 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6489 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6490 settings->n_akm_suites = len / sizeof(u32);
6491
6492 if (len % sizeof(u32))
6493 return -EINVAL;
6494
1b9ca027
JM		 6495 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6496 return -EINVAL;
6497
b23aa676 6498 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6499 }
6500
6501 return 0;
6502}
6503
636a5d36
JM		 6504static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6505{
4c476991
JB		 6506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6507 struct net_device *dev = info->user_ptr[1];
f444de05 6508 struct ieee80211_channel *chan;
f62fab73
JB		 6509 struct cfg80211_assoc_request req = {};
6510 const u8 *bssid, *ssid;
6511 int err, ssid_len = 0;
636a5d36 6512
f4a11bb0
JB		 6513 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6514 return -EINVAL;
6515
6516 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6517 !info->attrs[NL80211_ATTR_SSID] ||
6518 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6519 return -EINVAL;
6520
4c476991
JB		 6521 if (!rdev->ops->assoc)
6522 return -EOPNOTSUPP;
636a5d36 6523
074ac8df 6524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6525 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6526 return -EOPNOTSUPP;
eec60b03 6527
19957bb3 6528 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6529
664834de
JM		 6530 chan = nl80211_get_valid_chan(&rdev->wiphy,
6531 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6532 if (!chan)
4c476991 6533 return -EINVAL;
636a5d36 6534
19957bb3
JB		 6535 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6536 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6537
6538 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6539 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6540 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6541 }
6542
dc6382ce 6543 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6544 enum nl80211_mfp mfp =
dc6382ce 6545 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6546 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6547 req.use_mfp = true;
4c476991
JB		 6548 else if (mfp != NL80211_MFP_NO)
6549 return -EINVAL;
dc6382ce
JM		 6550 }
6551
3e5d7649 6552 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6553 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6554
7e7c8926 6555 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6556 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6557
6558 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6559 memcpy(&req.ht_capa_mask,
6560 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6561 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6562
6563 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6564 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6565 return -EINVAL;
f62fab73
JB		 6566 memcpy(&req.ht_capa,
6567 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6568 sizeof(req.ht_capa));
7e7c8926
BG		 6569 }
6570
ee2aca34 6571 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6572 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6573
6574 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6575 memcpy(&req.vht_capa_mask,
6576 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6577 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6578
6579 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6580 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6581 return -EINVAL;
f62fab73
JB		 6582 memcpy(&req.vht_capa,
6583 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6584 sizeof(req.vht_capa));
ee2aca34
JB		 6585 }
6586
f62fab73 6587 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6588 if (!err) {
6589 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6590 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6591 ssid, ssid_len, &req);
91bf9b26
JB		 6592 wdev_unlock(dev->ieee80211_ptr);
6593 }
636a5d36 6594
636a5d36
JM		 6595 return err;
6596}
6597
6598static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6599{
4c476991
JB		 6600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6601 struct net_device *dev = info->user_ptr[1];
19957bb3 6602 const u8 *ie = NULL, *bssid;
91bf9b26 6603 int ie_len = 0, err;
19957bb3 6604 u16 reason_code;
d5cdfacb 6605 bool local_state_change;
636a5d36 6606
f4a11bb0
JB		 6607 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6608 return -EINVAL;
6609
6610 if (!info->attrs[NL80211_ATTR_MAC])
6611 return -EINVAL;
6612
6613 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6614 return -EINVAL;
6615
4c476991
JB		 6616 if (!rdev->ops->deauth)
6617 return -EOPNOTSUPP;
636a5d36 6618
074ac8df 6619 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6620 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6621 return -EOPNOTSUPP;
eec60b03 6622
19957bb3 6623 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6624
19957bb3
JB		 6625 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6626 if (reason_code == 0) {
f4a11bb0 6627 /* Reason Code 0 is reserved */
4c476991 6628 return -EINVAL;
255e737e 6629 }
636a5d36
JM		 6630
6631 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6632 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6633 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6634 }
6635
d5cdfacb
JM		 6636 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6637
91bf9b26
JB		 6638 wdev_lock(dev->ieee80211_ptr);
6639 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6640 local_state_change);
6641 wdev_unlock(dev->ieee80211_ptr);
6642 return err;
636a5d36
JM		 6643}
6644
6645static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6646{
4c476991
JB		 6647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6648 struct net_device *dev = info->user_ptr[1];
19957bb3 6649 const u8 *ie = NULL, *bssid;
91bf9b26 6650 int ie_len = 0, err;
19957bb3 6651 u16 reason_code;
d5cdfacb 6652 bool local_state_change;
636a5d36 6653
f4a11bb0
JB		 6654 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6655 return -EINVAL;
6656
6657 if (!info->attrs[NL80211_ATTR_MAC])
6658 return -EINVAL;
6659
6660 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6661 return -EINVAL;
6662
4c476991
JB		 6663 if (!rdev->ops->disassoc)
6664 return -EOPNOTSUPP;
636a5d36 6665
074ac8df 6666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6667 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6668 return -EOPNOTSUPP;
eec60b03 6669
19957bb3 6670 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6671
19957bb3
JB		 6672 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6673 if (reason_code == 0) {
f4a11bb0 6674 /* Reason Code 0 is reserved */
4c476991 6675 return -EINVAL;
255e737e 6676 }
636a5d36
JM		 6677
6678 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6679 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6680 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6681 }
6682
d5cdfacb
JM		 6683 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6684
91bf9b26
JB		 6685 wdev_lock(dev->ieee80211_ptr);
6686 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6687 local_state_change);
6688 wdev_unlock(dev->ieee80211_ptr);
6689 return err;
636a5d36
JM		 6690}
6691
dd5b4cc7
FF		 6692static bool
6693nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6694 int mcast_rate[IEEE80211_NUM_BANDS],
6695 int rateval)
6696{
6697 struct wiphy *wiphy = &rdev->wiphy;
6698 bool found = false;
6699 int band, i;
6700
6701 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6702 struct ieee80211_supported_band *sband;
6703
6704 sband = wiphy->bands[band];
6705 if (!sband)
6706 continue;
6707
6708 for (i = 0; i < sband->n_bitrates; i++) {
6709 if (sband->bitrates[i].bitrate == rateval) {
6710 mcast_rate[band] = i + 1;
6711 found = true;
6712 break;
6713 }
6714 }
6715 }
6716
6717 return found;
6718}
6719
04a773ad
JB		 6720static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6721{
4c476991
JB		 6722 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6723 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6724 struct cfg80211_ibss_params ibss;
6725 struct wiphy *wiphy;
fffd0934 6726 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6727 int err;
6728
8e30bc55
JB		 6729 memset(&ibss, 0, sizeof(ibss));
6730
04a773ad
JB		 6731 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6732 return -EINVAL;
6733
683b6d3b 6734 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6735 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6736 return -EINVAL;
6737
8e30bc55
JB		 6738 ibss.beacon_interval = 100;
6739
6740 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6741 ibss.beacon_interval =
6742 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6743 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6744 return -EINVAL;
6745 }
6746
4c476991
JB		 6747 if (!rdev->ops->join_ibss)
6748 return -EOPNOTSUPP;
04a773ad 6749
4c476991
JB		 6750 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6751 return -EOPNOTSUPP;
04a773ad 6752
79c97e97 6753 wiphy = &rdev->wiphy;
04a773ad 6754
39193498 6755 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6756 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6757
6758 if (!is_valid_ether_addr(ibss.bssid))
6759 return -EINVAL;
6760 }
04a773ad
JB		 6761 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6762 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6763
6764 if (info->attrs[NL80211_ATTR_IE]) {
6765 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6766 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6767 }
6768
683b6d3b
JB		 6769 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6770 if (err)
6771 return err;
04a773ad 6772
174e0cd2
IP		 6773 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6774 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6775 return -EINVAL;
6776
2f301ab2 6777 switch (ibss.chandef.width) {
bf372645
SW		 6778 case NL80211_CHAN_WIDTH_5:
6779 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6780 case NL80211_CHAN_WIDTH_20_NOHT:
6781 break;
6782 case NL80211_CHAN_WIDTH_20:
6783 case NL80211_CHAN_WIDTH_40:
6784 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6785 break;
6786 default:
c04d6150 6787 return -EINVAL;
2f301ab2 6788 }
db9c64cf 6789
04a773ad 6790 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6791 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6792
fbd2c8dc
TP		 6793 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6794 u8 *rates =
6795 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6796 int n_rates =
6797 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6798 struct ieee80211_supported_band *sband =
683b6d3b 6799 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6800
34850ab2
JB		 6801 err = ieee80211_get_ratemask(sband, rates, n_rates,
6802 &ibss.basic_rates);
6803 if (err)
6804 return err;
fbd2c8dc 6805 }
dd5b4cc7 6806
803768f5
SW		 6807 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6808 memcpy(&ibss.ht_capa_mask,
6809 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6810 sizeof(ibss.ht_capa_mask));
6811
6812 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6813 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6814 return -EINVAL;
6815 memcpy(&ibss.ht_capa,
6816 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6817 sizeof(ibss.ht_capa));
6818 }
6819
dd5b4cc7
FF		 6820 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6821 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6822 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6823 return -EINVAL;
fbd2c8dc 6824
4c476991 6825 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6826 bool no_ht = false;
6827
4c476991 6828 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6829 info->attrs[NL80211_ATTR_KEYS],
6830 &no_ht);
4c476991
JB		 6831 if (IS_ERR(connkeys))
6832 return PTR_ERR(connkeys);
de7044ee 6833
3d9d1d66
JB		 6834 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6835 no_ht) {
de7044ee
SM		 6836 kfree(connkeys);
6837 return -EINVAL;
6838 }
4c476991 6839 }
04a773ad 6840
267335d6
AQ		 6841 ibss.control_port =
6842 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6843
5336fa88
SW		 6844 ibss.userspace_handles_dfs =
6845 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6846
4c476991 6847 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6848 if (err)
6849 kfree(connkeys);
04a773ad
JB		 6850 return err;
6851}
6852
6853static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6854{
4c476991
JB		 6855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6856 struct net_device *dev = info->user_ptr[1];
04a773ad 6857
4c476991
JB		 6858 if (!rdev->ops->leave_ibss)
6859 return -EOPNOTSUPP;
04a773ad 6860
4c476991
JB		 6861 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6862 return -EOPNOTSUPP;
04a773ad 6863
4c476991 6864 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6865}
6866
f4e583c8
AQ		 6867static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6868{
6869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6870 struct net_device *dev = info->user_ptr[1];
6871 int mcast_rate[IEEE80211_NUM_BANDS];
6872 u32 nla_rate;
6873 int err;
6874
6875 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6876 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6877 return -EOPNOTSUPP;
6878
6879 if (!rdev->ops->set_mcast_rate)
6880 return -EOPNOTSUPP;
6881
6882 memset(mcast_rate, 0, sizeof(mcast_rate));
6883
6884 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6885 return -EINVAL;
6886
6887 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6888 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6889 return -EINVAL;
6890
6891 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6892
6893 return err;
6894}
6895
ad7e718c
JB		 6896static struct sk_buff *
6897__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6898 int approxlen, u32 portid, u32 seq,
6899 enum nl80211_commands cmd,
567ffc35
JB		 6900 enum nl80211_attrs attr,
6901 const struct nl80211_vendor_cmd_info *info,
6902 gfp_t gfp)
ad7e718c
JB		 6903{
6904 struct sk_buff *skb;
6905 void *hdr;
6906 struct nlattr *data;
6907
6908 skb = nlmsg_new(approxlen + 100, gfp);
6909 if (!skb)
6910 return NULL;
6911
6912 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6913 if (!hdr) {
6914 kfree_skb(skb);
6915 return NULL;
6916 }
6917
6918 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6919 goto nla_put_failure;
567ffc35
JB		 6920
6921 if (info) {
6922 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6923 info->vendor_id))
6924 goto nla_put_failure;
6925 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6926 info->subcmd))
6927 goto nla_put_failure;
6928 }
6929
ad7e718c
JB		 6930 data = nla_nest_start(skb, attr);
6931
6932 ((void **)skb->cb)[0] = rdev;
6933 ((void **)skb->cb)[1] = hdr;
6934 ((void **)skb->cb)[2] = data;
6935
6936 return skb;
6937
6938 nla_put_failure:
6939 kfree_skb(skb);
6940 return NULL;
6941}
f4e583c8 6942
e03ad6ea
JB		 6943struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6944 enum nl80211_commands cmd,
6945 enum nl80211_attrs attr,
6946 int vendor_event_idx,
6947 int approxlen, gfp_t gfp)
6948{
f26cbf40 6949 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6950 const struct nl80211_vendor_cmd_info *info;
6951
6952 switch (cmd) {
6953 case NL80211_CMD_TESTMODE:
6954 if (WARN_ON(vendor_event_idx != -1))
6955 return NULL;
6956 info = NULL;
6957 break;
6958 case NL80211_CMD_VENDOR:
6959 if (WARN_ON(vendor_event_idx < 0 ||
6960 vendor_event_idx >= wiphy->n_vendor_events))
6961 return NULL;
6962 info = &wiphy->vendor_events[vendor_event_idx];
6963 break;
6964 default:
6965 WARN_ON(1);
6966 return NULL;
6967 }
6968
6969 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6970 cmd, attr, info, gfp);
6971}
6972EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6973
6974void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6975{
6976 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6977 void *hdr = ((void **)skb->cb)[1];
6978 struct nlattr *data = ((void **)skb->cb)[2];
6979 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6980
6981 nla_nest_end(skb, data);
6982 genlmsg_end(skb, hdr);
6983
6984 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6985 mcgrp = NL80211_MCGRP_VENDOR;
6986
6987 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6988 mcgrp, gfp);
6989}
6990EXPORT_SYMBOL(__cfg80211_send_event_skb);
6991
aff89a9b 6992#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6993static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6994{
4c476991 6995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6996 struct wireless_dev *wdev =
6997 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6998 int err;
6999
fc73f11f
DS		 7000 if (!rdev->ops->testmode_cmd)
7001 return -EOPNOTSUPP;
7002
7003 if (IS_ERR(wdev)) {
7004 err = PTR_ERR(wdev);
7005 if (err != -EINVAL)
7006 return err;
7007 wdev = NULL;
7008 } else if (wdev->wiphy != &rdev->wiphy) {
7009 return -EINVAL;
7010 }
7011
aff89a9b
JB		 7012 if (!info->attrs[NL80211_ATTR_TESTDATA])
7013 return -EINVAL;
7014
ad7e718c 7015 rdev->cur_cmd_info = info;
fc73f11f 7016 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7017 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7018 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7019 rdev->cur_cmd_info = NULL;
aff89a9b 7020
aff89a9b
JB		 7021 return err;
7022}
7023
71063f0e
WYG		 7024static int nl80211_testmode_dump(struct sk_buff *skb,
7025 struct netlink_callback *cb)
7026{
00918d33 7027 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7028 int err;
7029 long phy_idx;
7030 void *data = NULL;
7031 int data_len = 0;
7032
5fe231e8
JB		 7033 rtnl_lock();
7034
71063f0e
WYG		 7035 if (cb->args[0]) {
7036 /*
7037 * 0 is a valid index, but not valid for args[0],
7038 * so we need to offset by 1.
7039 */
7040 phy_idx = cb->args[0] - 1;
7041 } else {
7042 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7043 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7044 nl80211_policy);
7045 if (err)
5fe231e8 7046 goto out_err;
00918d33 7047
2bd7e35d
JB		 7048 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7049 nl80211_fam.attrbuf);
7050 if (IS_ERR(rdev)) {
5fe231e8
JB		 7051 err = PTR_ERR(rdev);
7052 goto out_err;
00918d33 7053 }
2bd7e35d
JB		 7054 phy_idx = rdev->wiphy_idx;
7055 rdev = NULL;
2bd7e35d 7056
71063f0e
WYG		 7057 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7058 cb->args[1] =
7059 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7060 }
7061
7062 if (cb->args[1]) {
7063 data = nla_data((void *)cb->args[1]);
7064 data_len = nla_len((void *)cb->args[1]);
7065 }
7066
00918d33
JB		 7067 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7068 if (!rdev) {
5fe231e8
JB		 7069 err = -ENOENT;
7070 goto out_err;
71063f0e 7071 }
71063f0e 7072
00918d33 7073 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7074 err = -EOPNOTSUPP;
7075 goto out_err;
7076 }
7077
7078 while (1) {
15e47304 7079 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7080 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7081 NL80211_CMD_TESTMODE);
7082 struct nlattr *tmdata;
7083
cb35fba3
DC		 7084 if (!hdr)
7085 break;
7086
9360ffd1 7087 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7088 genlmsg_cancel(skb, hdr);
7089 break;
7090 }
7091
7092 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7093 if (!tmdata) {
7094 genlmsg_cancel(skb, hdr);
7095 break;
7096 }
e35e4d28 7097 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7098 nla_nest_end(skb, tmdata);
7099
7100 if (err == -ENOBUFS || err == -ENOENT) {
7101 genlmsg_cancel(skb, hdr);
7102 break;
7103 } else if (err) {
7104 genlmsg_cancel(skb, hdr);
7105 goto out_err;
7106 }
7107
7108 genlmsg_end(skb, hdr);
7109 }
7110
7111 err = skb->len;
7112 /* see above */
7113 cb->args[0] = phy_idx + 1;
7114 out_err:
5fe231e8 7115 rtnl_unlock();
71063f0e
WYG		 7116 return err;
7117}
aff89a9b
JB		 7118#endif
7119
b23aa676
SO		 7120static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7121{
4c476991
JB		 7122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7123 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7124 struct cfg80211_connect_params connect;
7125 struct wiphy *wiphy;
fffd0934 7126 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7127 int err;
7128
7129 memset(&connect, 0, sizeof(connect));
7130
7131 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7132 return -EINVAL;
7133
7134 if (!info->attrs[NL80211_ATTR_SSID] ||
7135 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7136 return -EINVAL;
7137
7138 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7139 connect.auth_type =
7140 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7141 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7142 NL80211_CMD_CONNECT))
b23aa676
SO		 7143 return -EINVAL;
7144 } else
7145 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7146
7147 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7148
c0692b8f 7149 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7150 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7151 if (err)
7152 return err;
b23aa676 7153
074ac8df 7154 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7155 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7156 return -EOPNOTSUPP;
b23aa676 7157
79c97e97 7158 wiphy = &rdev->wiphy;
b23aa676 7159
4486ea98
BS		 7160 connect.bg_scan_period = -1;
7161 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7162 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7163 connect.bg_scan_period =
7164 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7165 }
7166
b23aa676
SO		 7167 if (info->attrs[NL80211_ATTR_MAC])
7168 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7169 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7170 connect.bssid_hint =
7171 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7172 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7173 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7174
7175 if (info->attrs[NL80211_ATTR_IE]) {
7176 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7177 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7178 }
7179
cee00a95
JM		 7180 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7181 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7182 if (connect.mfp != NL80211_MFP_REQUIRED &&
7183 connect.mfp != NL80211_MFP_NO)
7184 return -EINVAL;
7185 } else {
7186 connect.mfp = NL80211_MFP_NO;
7187 }
7188
b23aa676 7189 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7190 connect.channel = nl80211_get_valid_chan(
7191 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7192 if (!connect.channel)
1df4a510
JM		 7193 return -EINVAL;
7194 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7195 connect.channel_hint = nl80211_get_valid_chan(
7196 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7197 if (!connect.channel_hint)
4c476991 7198 return -EINVAL;
b23aa676
SO		 7199 }
7200
fffd0934
JB		 7201 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7202 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7203 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7204 if (IS_ERR(connkeys))
7205 return PTR_ERR(connkeys);
fffd0934
JB		 7206 }
7207
7e7c8926
BG		 7208 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7209 connect.flags |= ASSOC_REQ_DISABLE_HT;
7210
7211 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7212 memcpy(&connect.ht_capa_mask,
7213 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7214 sizeof(connect.ht_capa_mask));
7215
7216 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7217 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7218 kfree(connkeys);
7e7c8926 7219 return -EINVAL;
b4e4f47e 7220 }
7e7c8926
BG		 7221 memcpy(&connect.ht_capa,
7222 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7223 sizeof(connect.ht_capa));
7224 }
7225
ee2aca34
JB		 7226 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7227 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7228
7229 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7230 memcpy(&connect.vht_capa_mask,
7231 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7232 sizeof(connect.vht_capa_mask));
7233
7234 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7235 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7236 kfree(connkeys);
7237 return -EINVAL;
7238 }
7239 memcpy(&connect.vht_capa,
7240 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7241 sizeof(connect.vht_capa));
7242 }
7243
83739b03
JB		 7244 wdev_lock(dev->ieee80211_ptr);
7245 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7246 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7247 if (err)
7248 kfree(connkeys);
b23aa676
SO		 7249 return err;
7250}
7251
7252static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7253{
4c476991
JB		 7254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7255 struct net_device *dev = info->user_ptr[1];
b23aa676 7256 u16 reason;
83739b03 7257 int ret;
b23aa676
SO		 7258
7259 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7260 reason = WLAN_REASON_DEAUTH_LEAVING;
7261 else
7262 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7263
7264 if (reason == 0)
7265 return -EINVAL;
7266
074ac8df 7267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7269 return -EOPNOTSUPP;
b23aa676 7270
83739b03
JB		 7271 wdev_lock(dev->ieee80211_ptr);
7272 ret = cfg80211_disconnect(rdev, dev, reason, true);
7273 wdev_unlock(dev->ieee80211_ptr);
7274 return ret;
b23aa676
SO		 7275}
7276
463d0183
JB		 7277static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7278{
4c476991 7279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7280 struct net *net;
7281 int err;
7282 u32 pid;
7283
7284 if (!info->attrs[NL80211_ATTR_PID])
7285 return -EINVAL;
7286
7287 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7288
463d0183 7289 net = get_net_ns_by_pid(pid);
4c476991
JB		 7290 if (IS_ERR(net))
7291 return PTR_ERR(net);
463d0183
JB		 7292
7293 err = 0;
7294
7295 /* check if anything to do */
4c476991
JB		 7296 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7297 err = cfg80211_switch_netns(rdev, net);
463d0183 7298
463d0183 7299 put_net(net);
463d0183
JB		 7300 return err;
7301}
7302
67fbb16b
SO		 7303static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7304{
4c476991 7305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7306 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7307 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7308 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7309 struct cfg80211_pmksa pmksa;
7310
7311 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7312
7313 if (!info->attrs[NL80211_ATTR_MAC])
7314 return -EINVAL;
7315
7316 if (!info->attrs[NL80211_ATTR_PMKID])
7317 return -EINVAL;
7318
67fbb16b
SO		 7319 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7320 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7321
074ac8df 7322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7323 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7324 return -EOPNOTSUPP;
67fbb16b
SO		 7325
7326 switch (info->genlhdr->cmd) {
7327 case NL80211_CMD_SET_PMKSA:
7328 rdev_ops = rdev->ops->set_pmksa;
7329 break;
7330 case NL80211_CMD_DEL_PMKSA:
7331 rdev_ops = rdev->ops->del_pmksa;
7332 break;
7333 default:
7334 WARN_ON(1);
7335 break;
7336 }
7337
4c476991
JB		 7338 if (!rdev_ops)
7339 return -EOPNOTSUPP;
67fbb16b 7340
4c476991 7341 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7342}
7343
7344static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7345{
4c476991
JB		 7346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7347 struct net_device *dev = info->user_ptr[1];
67fbb16b 7348
074ac8df 7349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7351 return -EOPNOTSUPP;
67fbb16b 7352
4c476991
JB		 7353 if (!rdev->ops->flush_pmksa)
7354 return -EOPNOTSUPP;
67fbb16b 7355
e35e4d28 7356 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7357}
7358
109086ce
AN		 7359static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7360{
7361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7362 struct net_device *dev = info->user_ptr[1];
7363 u8 action_code, dialog_token;
df942e7b 7364 u32 peer_capability = 0;
109086ce
AN		 7365 u16 status_code;
7366 u8 *peer;
7367
7368 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7369 !rdev->ops->tdls_mgmt)
7370 return -EOPNOTSUPP;
7371
7372 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7373 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7374 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7375 !info->attrs[NL80211_ATTR_IE] ||
7376 !info->attrs[NL80211_ATTR_MAC])
7377 return -EINVAL;
7378
7379 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7380 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7381 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7382 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7383 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7384 peer_capability =
7385 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7386
e35e4d28 7387 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7388 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7389 nla_data(info->attrs[NL80211_ATTR_IE]),
7390 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7391}
7392
7393static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7394{
7395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7396 struct net_device *dev = info->user_ptr[1];
7397 enum nl80211_tdls_operation operation;
7398 u8 *peer;
7399
7400 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7401 !rdev->ops->tdls_oper)
7402 return -EOPNOTSUPP;
7403
7404 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7405 !info->attrs[NL80211_ATTR_MAC])
7406 return -EINVAL;
7407
7408 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7409 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7410
e35e4d28 7411 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7412}
7413
9588bbd5
JM		 7414static int nl80211_remain_on_channel(struct sk_buff *skb,
7415 struct genl_info *info)
7416{
4c476991 7417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7418 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7419 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7420 struct sk_buff *msg;
7421 void *hdr;
7422 u64 cookie;
683b6d3b 7423 u32 duration;
9588bbd5
JM		 7424 int err;
7425
7426 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7427 !info->attrs[NL80211_ATTR_DURATION])
7428 return -EINVAL;
7429
7430 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7431
ebf348fc
JB		 7432 if (!rdev->ops->remain_on_channel ||
7433 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7434 return -EOPNOTSUPP;
7435
9588bbd5 7436 /*
ebf348fc
JB		 7437 * We should be on that channel for at least a minimum amount of
7438 * time (10ms) but no longer than the driver supports.
9588bbd5 7439 */
ebf348fc 7440 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7441 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7442 return -EINVAL;
7443
683b6d3b
JB		 7444 err = nl80211_parse_chandef(rdev, info, &chandef);
7445 if (err)
7446 return err;
9588bbd5
JM		 7447
7448 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7449 if (!msg)
7450 return -ENOMEM;
9588bbd5 7451
15e47304 7452 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7453 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7454 if (!hdr) {
7455 err = -ENOBUFS;
9588bbd5
JM		 7456 goto free_msg;
7457 }
7458
683b6d3b
JB		 7459 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7460 duration, &cookie);
9588bbd5
JM		 7461
7462 if (err)
7463 goto free_msg;
7464
9360ffd1
DM		 7465 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7466 goto nla_put_failure;
9588bbd5
JM		 7467
7468 genlmsg_end(msg, hdr);
4c476991
JB		 7469
7470 return genlmsg_reply(msg, info);
9588bbd5
JM		 7471
7472 nla_put_failure:
7473 err = -ENOBUFS;
7474 free_msg:
7475 nlmsg_free(msg);
9588bbd5
JM		 7476 return err;
7477}
7478
7479static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7480 struct genl_info *info)
7481{
4c476991 7482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7483 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7484 u64 cookie;
9588bbd5
JM		 7485
7486 if (!info->attrs[NL80211_ATTR_COOKIE])
7487 return -EINVAL;
7488
4c476991
JB		 7489 if (!rdev->ops->cancel_remain_on_channel)
7490 return -EOPNOTSUPP;
9588bbd5 7491
9588bbd5
JM		 7492 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7493
e35e4d28 7494 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7495}
7496
13ae75b1
JM		 7497static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7498 u8 *rates, u8 rates_len)
7499{
7500 u8 i;
7501 u32 mask = 0;
7502
7503 for (i = 0; i < rates_len; i++) {
7504 int rate = (rates[i] & 0x7f) * 5;
7505 int ridx;
7506 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7507 struct ieee80211_rate *srate =
7508 &sband->bitrates[ridx];
7509 if (rate == srate->bitrate) {
7510 mask |= 1 << ridx;
7511 break;
7512 }
7513 }
7514 if (ridx == sband->n_bitrates)
7515 return 0; /* rate not found */
7516 }
7517
7518 return mask;
7519}
7520
24db78c0
SW		 7521static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7522 u8 *rates, u8 rates_len,
7523 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7524{
7525 u8 i;
7526
7527 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7528
7529 for (i = 0; i < rates_len; i++) {
7530 int ridx, rbit;
7531
7532 ridx = rates[i] / 8;
7533 rbit = BIT(rates[i] % 8);
7534
7535 /* check validity */
910570b5 7536 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7537 return false;
7538
7539 /* check availability */
7540 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7541 mcs[ridx] |= rbit;
7542 else
7543 return false;
7544 }
7545
7546 return true;
7547}
7548
204e35a9
JD		 7549static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7550{
7551 u16 mcs_mask = 0;
7552
7553 switch (vht_mcs_map) {
7554 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7555 break;
7556 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7557 mcs_mask = 0x00FF;
7558 break;
7559 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7560 mcs_mask = 0x01FF;
7561 break;
7562 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7563 mcs_mask = 0x03FF;
7564 break;
7565 default:
7566 break;
7567 }
7568
7569 return mcs_mask;
7570}
7571
7572static void vht_build_mcs_mask(u16 vht_mcs_map,
7573 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7574{
7575 u8 nss;
7576
7577 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7578 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7579 vht_mcs_map >>= 2;
7580 }
7581}
7582
7583static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7584 struct nl80211_txrate_vht *txrate,
7585 u16 mcs[NL80211_VHT_NSS_MAX])
7586{
7587 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7588 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7589 u8 i;
7590
7591 if (!sband->vht_cap.vht_supported)
7592 return false;
7593
7594 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7595
7596 /* Build vht_mcs_mask from VHT capabilities */
7597 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7598
7599 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7600 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7601 mcs[i] = txrate->mcs[i];
7602 else
7603 return false;
7604 }
7605
7606 return true;
7607}
7608
b54452b0 7609static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7610 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7611 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7612 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7613 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7614 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7615 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7616};
7617
7618static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7619 struct genl_info *info)
7620{
7621 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7623 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7624 int rem, i;
7625 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7626 struct nlattr *tx_rates;
7627 struct ieee80211_supported_band *sband;
204e35a9 7628 u16 vht_tx_mcs_map;
13ae75b1 7629
4c476991
JB		 7630 if (!rdev->ops->set_bitrate_mask)
7631 return -EOPNOTSUPP;
13ae75b1
JM		 7632
7633 memset(&mask, 0, sizeof(mask));
7634 /* Default to all rates enabled */
7635 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7636 sband = rdev->wiphy.bands[i];
7869303b
JD		 7637
7638 if (!sband)
7639 continue;
7640
7641 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7642 memcpy(mask.control[i].ht_mcs,
7869303b 7643 sband->ht_cap.mcs.rx_mask,
d1e33e65 7644 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7645
7646 if (!sband->vht_cap.vht_supported)
7647 continue;
7648
7649 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7650 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7651 }
7652
b9243ab0
JD		 7653 /* if no rates are given set it back to the defaults */
7654 if (!info->attrs[NL80211_ATTR_TX_RATES])
7655 goto out;
7656
13ae75b1
JM		 7657 /*
7658 * The nested attribute uses enum nl80211_band as the index. This maps
7659 * directly to the enum ieee80211_band values used in cfg80211.
7660 */
24db78c0 7661 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7662 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7663 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7664 int err;
7665
4c476991
JB		 7666 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7667 return -EINVAL;
13ae75b1 7668 sband = rdev->wiphy.bands[band];
4c476991
JB		 7669 if (sband == NULL)
7670 return -EINVAL;
ae811e21
JB		 7671 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7672 nla_len(tx_rates), nl80211_txattr_policy);
7673 if (err)
7674 return err;
13ae75b1
JM		 7675 if (tb[NL80211_TXRATE_LEGACY]) {
7676 mask.control[band].legacy = rateset_to_mask(
7677 sband,
7678 nla_data(tb[NL80211_TXRATE_LEGACY]),
7679 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7680 if ((mask.control[band].legacy == 0) &&
7681 nla_len(tb[NL80211_TXRATE_LEGACY]))
7682 return -EINVAL;
24db78c0 7683 }
d1e33e65 7684 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7685 if (!ht_rateset_to_mask(
7686 sband,
d1e33e65
JD		 7687 nla_data(tb[NL80211_TXRATE_HT]),
7688 nla_len(tb[NL80211_TXRATE_HT]),
7689 mask.control[band].ht_mcs))
24db78c0
SW		 7690 return -EINVAL;
7691 }
204e35a9
JD		 7692 if (tb[NL80211_TXRATE_VHT]) {
7693 if (!vht_set_mcs_mask(
7694 sband,
7695 nla_data(tb[NL80211_TXRATE_VHT]),
7696 mask.control[band].vht_mcs))
7697 return -EINVAL;
7698 }
0b9323f6
JD		 7699 if (tb[NL80211_TXRATE_GI]) {
7700 mask.control[band].gi =
7701 nla_get_u8(tb[NL80211_TXRATE_GI]);
7702 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7703 return -EINVAL;
7704 }
24db78c0
SW		 7705
7706 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7707 /* don't allow empty legacy rates if HT or VHT
7708 * are not even supported.
7709 */
7710 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7711 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7712 return -EINVAL;
7713
7714 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7715 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7716 goto out;
7717
7718 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7719 if (mask.control[band].vht_mcs[i])
7720 goto out;
24db78c0
SW		 7721
7722 /* legacy and mcs rates may not be both empty */
204e35a9 7723 return -EINVAL;
13ae75b1
JM		 7724 }
7725 }
7726
b9243ab0 7727out:
e35e4d28 7728 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7729}
7730
2e161f78 7731static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7732{
4c476991 7733 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7734 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7735 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7736
7737 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7738 return -EINVAL;
7739
2e161f78
JB		 7740 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7741 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7742
71bbc994
JB		 7743 switch (wdev->iftype) {
7744 case NL80211_IFTYPE_STATION:
7745 case NL80211_IFTYPE_ADHOC:
7746 case NL80211_IFTYPE_P2P_CLIENT:
7747 case NL80211_IFTYPE_AP:
7748 case NL80211_IFTYPE_AP_VLAN:
7749 case NL80211_IFTYPE_MESH_POINT:
7750 case NL80211_IFTYPE_P2P_GO:
98104fde 7751 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7752 break;
7753 default:
4c476991 7754 return -EOPNOTSUPP;
71bbc994 7755 }
026331c4
JM		 7756
7757 /* not much point in registering if we can't reply */
4c476991
JB		 7758 if (!rdev->ops->mgmt_tx)
7759 return -EOPNOTSUPP;
026331c4 7760
15e47304 7761 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7762 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7763 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7764}
7765
2e161f78 7766static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7767{
4c476991 7768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7769 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7770 struct cfg80211_chan_def chandef;
026331c4 7771 int err;
d64d373f 7772 void *hdr = NULL;
026331c4 7773 u64 cookie;
e247bd90 7774 struct sk_buff *msg = NULL;
b176e629
AO		 7775 struct cfg80211_mgmt_tx_params params = {
7776 .dont_wait_for_ack =
7777 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7778 };
026331c4 7779
683b6d3b 7780 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7781 return -EINVAL;
7782
4c476991
JB		 7783 if (!rdev->ops->mgmt_tx)
7784 return -EOPNOTSUPP;
026331c4 7785
71bbc994 7786 switch (wdev->iftype) {
ea141b75
AQ		 7787 case NL80211_IFTYPE_P2P_DEVICE:
7788 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7789 return -EINVAL;
71bbc994
JB		 7790 case NL80211_IFTYPE_STATION:
7791 case NL80211_IFTYPE_ADHOC:
7792 case NL80211_IFTYPE_P2P_CLIENT:
7793 case NL80211_IFTYPE_AP:
7794 case NL80211_IFTYPE_AP_VLAN:
7795 case NL80211_IFTYPE_MESH_POINT:
7796 case NL80211_IFTYPE_P2P_GO:
7797 break;
7798 default:
4c476991 7799 return -EOPNOTSUPP;
71bbc994 7800 }
026331c4 7801
f7ca38df 7802 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7803 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7804 return -EINVAL;
b176e629 7805 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7806
7807 /*
7808 * We should wait on the channel for at least a minimum amount
7809 * of time (10ms) but no longer than the driver supports.
7810 */
b176e629
AO		 7811 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7812 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7813 return -EINVAL;
7814
f7ca38df
JB		 7815 }
7816
b176e629 7817 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7818
b176e629 7819 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7820 return -EINVAL;
7821
b176e629 7822 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7823
ea141b75
AQ		 7824 /* get the channel if any has been specified, otherwise pass NULL to
7825 * the driver. The latter will use the current one
7826 */
7827 chandef.chan = NULL;
7828 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7829 err = nl80211_parse_chandef(rdev, info, &chandef);
7830 if (err)
7831 return err;
7832 }
7833
b176e629 7834 if (!chandef.chan && params.offchan)
ea141b75 7835 return -EINVAL;
026331c4 7836
34d22ce2
AO		 7837 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7838 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7839
7840 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7841 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7842 int i;
7843
7844 if (len % sizeof(u16))
7845 return -EINVAL;
7846
7847 params.n_csa_offsets = len / sizeof(u16);
7848 params.csa_offsets =
7849 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7850
7851 /* check that all the offsets fit the frame */
7852 for (i = 0; i < params.n_csa_offsets; i++) {
7853 if (params.csa_offsets[i] >= params.len)
7854 return -EINVAL;
7855 }
7856 }
7857
b176e629 7858 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7860 if (!msg)
7861 return -ENOMEM;
026331c4 7862
15e47304 7863 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7864 NL80211_CMD_FRAME);
cb35fba3
DC		 7865 if (!hdr) {
7866 err = -ENOBUFS;
e247bd90
JB		 7867 goto free_msg;
7868 }
026331c4 7869 }
e247bd90 7870
b176e629
AO		 7871 params.chan = chandef.chan;
7872 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7873 if (err)
7874 goto free_msg;
7875
e247bd90 7876 if (msg) {
9360ffd1
DM		 7877 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7878 goto nla_put_failure;
026331c4 7879
e247bd90
JB		 7880 genlmsg_end(msg, hdr);
7881 return genlmsg_reply(msg, info);
7882 }
7883
7884 return 0;
026331c4
JM		 7885
7886 nla_put_failure:
7887 err = -ENOBUFS;
7888 free_msg:
7889 nlmsg_free(msg);
026331c4
JM		 7890 return err;
7891}
7892
f7ca38df
JB		 7893static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7894{
7895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7896 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7897 u64 cookie;
7898
7899 if (!info->attrs[NL80211_ATTR_COOKIE])
7900 return -EINVAL;
7901
7902 if (!rdev->ops->mgmt_tx_cancel_wait)
7903 return -EOPNOTSUPP;
7904
71bbc994
JB		 7905 switch (wdev->iftype) {
7906 case NL80211_IFTYPE_STATION:
7907 case NL80211_IFTYPE_ADHOC:
7908 case NL80211_IFTYPE_P2P_CLIENT:
7909 case NL80211_IFTYPE_AP:
7910 case NL80211_IFTYPE_AP_VLAN:
7911 case NL80211_IFTYPE_P2P_GO:
98104fde 7912 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7913 break;
7914 default:
f7ca38df 7915 return -EOPNOTSUPP;
71bbc994 7916 }
f7ca38df
JB		 7917
7918 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7919
e35e4d28 7920 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7921}
7922
ffb9eb3d
KV		 7923static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7924{
4c476991 7925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7926 struct wireless_dev *wdev;
4c476991 7927 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7928 u8 ps_state;
7929 bool state;
7930 int err;
7931
4c476991
JB		 7932 if (!info->attrs[NL80211_ATTR_PS_STATE])
7933 return -EINVAL;
ffb9eb3d
KV		 7934
7935 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7936
4c476991
JB		 7937 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7938 return -EINVAL;
ffb9eb3d
KV		 7939
7940 wdev = dev->ieee80211_ptr;
7941
4c476991
JB		 7942 if (!rdev->ops->set_power_mgmt)
7943 return -EOPNOTSUPP;
ffb9eb3d
KV		 7944
7945 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7946
7947 if (state == wdev->ps)
4c476991 7948 return 0;
ffb9eb3d 7949
e35e4d28 7950 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7951 if (!err)
7952 wdev->ps = state;
ffb9eb3d
KV		 7953 return err;
7954}
7955
7956static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7957{
4c476991 7958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7959 enum nl80211_ps_state ps_state;
7960 struct wireless_dev *wdev;
4c476991 7961 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7962 struct sk_buff *msg;
7963 void *hdr;
7964 int err;
7965
ffb9eb3d
KV		 7966 wdev = dev->ieee80211_ptr;
7967
4c476991
JB		 7968 if (!rdev->ops->set_power_mgmt)
7969 return -EOPNOTSUPP;
ffb9eb3d
KV		 7970
7971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7972 if (!msg)
7973 return -ENOMEM;
ffb9eb3d 7974
15e47304 7975 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7976 NL80211_CMD_GET_POWER_SAVE);
7977 if (!hdr) {
4c476991 7978 err = -ENOBUFS;
ffb9eb3d
KV		 7979 goto free_msg;
7980 }
7981
7982 if (wdev->ps)
7983 ps_state = NL80211_PS_ENABLED;
7984 else
7985 ps_state = NL80211_PS_DISABLED;
7986
9360ffd1
DM		 7987 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7988 goto nla_put_failure;
ffb9eb3d
KV		 7989
7990 genlmsg_end(msg, hdr);
4c476991 7991 return genlmsg_reply(msg, info);
ffb9eb3d 7992
4c476991 7993 nla_put_failure:
ffb9eb3d 7994 err = -ENOBUFS;
4c476991 7995 free_msg:
ffb9eb3d 7996 nlmsg_free(msg);
ffb9eb3d
KV		 7997 return err;
7998}
7999
94e860f1
JB		 8000static const struct nla_policy
8001nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8002 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8003 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8004 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8005 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8006 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8007 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8008};
8009
84f10708 8010static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8011 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8012{
8013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8014 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8015 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8016
d9d8b019 8017 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8018 return -EINVAL;
8019
84f10708
TP		 8020 if (!rdev->ops->set_cqm_txe_config)
8021 return -EOPNOTSUPP;
8022
8023 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8024 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8025 return -EOPNOTSUPP;
8026
e35e4d28 8027 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8028}
8029
d6dc1a38
JO		 8030static int nl80211_set_cqm_rssi(struct genl_info *info,
8031 s32 threshold, u32 hysteresis)
8032{
4c476991 8033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8034 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8035 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8036
8037 if (threshold > 0)
8038 return -EINVAL;
8039
1da5fcc8
JB		 8040 /* disabling - hysteresis should also be zero then */
8041 if (threshold == 0)
8042 hysteresis = 0;
d6dc1a38 8043
4c476991
JB		 8044 if (!rdev->ops->set_cqm_rssi_config)
8045 return -EOPNOTSUPP;
d6dc1a38 8046
074ac8df 8047 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8048 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8049 return -EOPNOTSUPP;
d6dc1a38 8050
e35e4d28 8051 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8052}
8053
8054static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8055{
8056 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8057 struct nlattr *cqm;
8058 int err;
8059
8060 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8061 if (!cqm)
8062 return -EINVAL;
d6dc1a38
JO		 8063
8064 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8065 nl80211_attr_cqm_policy);
8066 if (err)
1da5fcc8 8067 return err;
d6dc1a38
JO		 8068
8069 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8070 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8071 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8072 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8073
1da5fcc8
JB		 8074 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8075 }
8076
8077 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8078 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8079 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8080 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8081 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8082 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8083
8084 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8085 }
8086
8087 return -EINVAL;
d6dc1a38
JO		 8088}
8089
29cbe68c
JB		 8090static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8091{
8092 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8093 struct net_device *dev = info->user_ptr[1];
8094 struct mesh_config cfg;
c80d545d 8095 struct mesh_setup setup;
29cbe68c
JB		 8096 int err;
8097
8098 /* start with default */
8099 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8100 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8101
24bdd9f4 8102 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8103 /* and parse parameters if given */
24bdd9f4 8104 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8105 if (err)
8106 return err;
8107 }
8108
8109 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8110 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8111 return -EINVAL;
8112
c80d545d
JC		 8113 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8114 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8115
4bb62344
CYY		 8116 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8117 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8118 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8119 return -EINVAL;
8120
9bdbf04d
MP		 8121 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8122 setup.beacon_interval =
8123 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8124 if (setup.beacon_interval < 10 ||
8125 setup.beacon_interval > 10000)
8126 return -EINVAL;
8127 }
8128
8129 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8130 setup.dtim_period =
8131 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8132 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8133 return -EINVAL;
8134 }
8135
c80d545d
JC		 8136 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8137 /* parse additional setup parameters if given */
8138 err = nl80211_parse_mesh_setup(info, &setup);
8139 if (err)
8140 return err;
8141 }
8142
d37bb18a
TP		 8143 if (setup.user_mpm)
8144 cfg.auto_open_plinks = false;
8145
cc1d2806 8146 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8147 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8148 if (err)
8149 return err;
cc1d2806
JB		 8150 } else {
8151 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8152 setup.chandef.chan = NULL;
cc1d2806
JB		 8153 }
8154
ffb3cf30
AN		 8155 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8156 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8157 int n_rates =
8158 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8159 struct ieee80211_supported_band *sband;
8160
8161 if (!setup.chandef.chan)
8162 return -EINVAL;
8163
8164 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8165
8166 err = ieee80211_get_ratemask(sband, rates, n_rates,
8167 &setup.basic_rates);
8168 if (err)
8169 return err;
8170 }
8171
c80d545d 8172 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8173}
8174
8175static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8176{
8177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8178 struct net_device *dev = info->user_ptr[1];
8179
8180 return cfg80211_leave_mesh(rdev, dev);
8181}
8182
dfb89c56 8183#ifdef CONFIG_PM
bb92d199
AK		 8184static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8185 struct cfg80211_registered_device *rdev)
8186{
6abb9cb9 8187 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8188 struct nlattr *nl_pats, *nl_pat;
8189 int i, pat_len;
8190
6abb9cb9 8191 if (!wowlan->n_patterns)
bb92d199
AK		 8192 return 0;
8193
8194 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8195 if (!nl_pats)
8196 return -ENOBUFS;
8197
6abb9cb9 8198 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8199 nl_pat = nla_nest_start(msg, i + 1);
8200 if (!nl_pat)
8201 return -ENOBUFS;
6abb9cb9 8202 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8203 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8204 wowlan->patterns[i].mask) ||
50ac6607
AK		 8205 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8206 wowlan->patterns[i].pattern) ||
8207 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8208 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8209 return -ENOBUFS;
8210 nla_nest_end(msg, nl_pat);
8211 }
8212 nla_nest_end(msg, nl_pats);
8213
8214 return 0;
8215}
8216
2a0e047e
JB		 8217static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8218 struct cfg80211_wowlan_tcp *tcp)
8219{
8220 struct nlattr *nl_tcp;
8221
8222 if (!tcp)
8223 return 0;
8224
8225 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8226 if (!nl_tcp)
8227 return -ENOBUFS;
8228
8229 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8230 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8231 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8232 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8233 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8234 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8235 tcp->payload_len, tcp->payload) ||
8236 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8237 tcp->data_interval) ||
8238 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8239 tcp->wake_len, tcp->wake_data) ||
8240 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8241 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8242 return -ENOBUFS;
8243
8244 if (tcp->payload_seq.len &&
8245 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8246 sizeof(tcp->payload_seq), &tcp->payload_seq))
8247 return -ENOBUFS;
8248
8249 if (tcp->payload_tok.len &&
8250 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8251 sizeof(tcp->payload_tok) + tcp->tokens_size,
8252 &tcp->payload_tok))
8253 return -ENOBUFS;
8254
e248ad30
JB		 8255 nla_nest_end(msg, nl_tcp);
8256
2a0e047e
JB		 8257 return 0;
8258}
8259
ff1b6e69
JB		 8260static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8261{
8262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8263 struct sk_buff *msg;
8264 void *hdr;
2a0e047e 8265 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8266
964dc9e2 8267 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8268 return -EOPNOTSUPP;
8269
6abb9cb9 8270 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8271 /* adjust size to have room for all the data */
6abb9cb9
JB		 8272 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8273 rdev->wiphy.wowlan_config->tcp->payload_len +
8274 rdev->wiphy.wowlan_config->tcp->wake_len +
8275 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8276 }
8277
8278 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8279 if (!msg)
8280 return -ENOMEM;
8281
15e47304 8282 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8283 NL80211_CMD_GET_WOWLAN);
8284 if (!hdr)
8285 goto nla_put_failure;
8286
6abb9cb9 8287 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8288 struct nlattr *nl_wowlan;
8289
8290 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8291 if (!nl_wowlan)
8292 goto nla_put_failure;
8293
6abb9cb9 8294 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8295 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8296 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8297 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8298 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8299 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8300 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8301 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8302 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8303 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8304 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8305 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8306 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8307 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8308 goto nla_put_failure;
2a0e047e 8309
bb92d199
AK		 8310 if (nl80211_send_wowlan_patterns(msg, rdev))
8311 goto nla_put_failure;
2a0e047e 8312
6abb9cb9
JB		 8313 if (nl80211_send_wowlan_tcp(msg,
8314 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8315 goto nla_put_failure;
8316
ff1b6e69
JB		 8317 nla_nest_end(msg, nl_wowlan);
8318 }
8319
8320 genlmsg_end(msg, hdr);
8321 return genlmsg_reply(msg, info);
8322
8323nla_put_failure:
8324 nlmsg_free(msg);
8325 return -ENOBUFS;
8326}
8327
2a0e047e
JB		 8328static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8329 struct nlattr *attr,
8330 struct cfg80211_wowlan *trig)
8331{
8332 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8333 struct cfg80211_wowlan_tcp *cfg;
8334 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8335 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8336 u32 size;
8337 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8338 int err, port;
8339
964dc9e2 8340 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8341 return -EINVAL;
8342
8343 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8344 nla_data(attr), nla_len(attr),
8345 nl80211_wowlan_tcp_policy);
8346 if (err)
8347 return err;
8348
8349 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8350 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8351 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8352 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8353 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8354 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8355 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8356 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8357 return -EINVAL;
8358
8359 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8360 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8361 return -EINVAL;
8362
8363 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8364 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8365 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8366 return -EINVAL;
8367
8368 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8369 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8370 return -EINVAL;
8371
8372 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8373 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8374 return -EINVAL;
8375
8376 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8377 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8378
8379 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8380 tokens_size = tokln - sizeof(*tok);
8381
8382 if (!tok->len || tokens_size % tok->len)
8383 return -EINVAL;
964dc9e2 8384 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8385 return -EINVAL;
964dc9e2 8386 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8387 return -EINVAL;
964dc9e2 8388 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8389 return -EINVAL;
964dc9e2 8390 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8391 return -EINVAL;
8392 if (tok->offset + tok->len > data_size)
8393 return -EINVAL;
8394 }
8395
8396 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8397 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8398 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8399 return -EINVAL;
8400 if (seq->len == 0 || seq->len > 4)
8401 return -EINVAL;
8402 if (seq->len + seq->offset > data_size)
8403 return -EINVAL;
8404 }
8405
8406 size = sizeof(*cfg);
8407 size += data_size;
8408 size += wake_size + wake_mask_size;
8409 size += tokens_size;
8410
8411 cfg = kzalloc(size, GFP_KERNEL);
8412 if (!cfg)
8413 return -ENOMEM;
8414 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8415 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8416 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8417 ETH_ALEN);
8418 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8419 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8420 else
8421 port = 0;
8422#ifdef CONFIG_INET
8423 /* allocate a socket and port for it and use it */
8424 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8425 IPPROTO_TCP, &cfg->sock, 1);
8426 if (err) {
8427 kfree(cfg);
8428 return err;
8429 }
8430 if (inet_csk_get_port(cfg->sock->sk, port)) {
8431 sock_release(cfg->sock);
8432 kfree(cfg);
8433 return -EADDRINUSE;
8434 }
8435 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8436#else
8437 if (!port) {
8438 kfree(cfg);
8439 return -EINVAL;
8440 }
8441 cfg->src_port = port;
8442#endif
8443
8444 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8445 cfg->payload_len = data_size;
8446 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8447 memcpy((void *)cfg->payload,
8448 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8449 data_size);
8450 if (seq)
8451 cfg->payload_seq = *seq;
8452 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8453 cfg->wake_len = wake_size;
8454 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8455 memcpy((void *)cfg->wake_data,
8456 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8457 wake_size);
8458 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8459 data_size + wake_size;
8460 memcpy((void *)cfg->wake_mask,
8461 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8462 wake_mask_size);
8463 if (tok) {
8464 cfg->tokens_size = tokens_size;
8465 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8466 }
8467
8468 trig->tcp = cfg;
8469
8470 return 0;
8471}
8472
ff1b6e69
JB		 8473static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8474{
8475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8476 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8477 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8478 struct cfg80211_wowlan *ntrig;
964dc9e2 8479 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8480 int err, i;
6abb9cb9 8481 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8482
964dc9e2 8483 if (!wowlan)
ff1b6e69
JB		 8484 return -EOPNOTSUPP;
8485
ae33bd81
JB		 8486 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8487 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8488 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8489 goto set_wakeup;
8490 }
ff1b6e69
JB		 8491
8492 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8493 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8494 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8495 nl80211_wowlan_policy);
8496 if (err)
8497 return err;
8498
8499 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8500 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8501 return -EINVAL;
8502 new_triggers.any = true;
8503 }
8504
8505 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8506 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8507 return -EINVAL;
8508 new_triggers.disconnect = true;
8509 }
8510
8511 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8512 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8513 return -EINVAL;
8514 new_triggers.magic_pkt = true;
8515 }
8516
77dbbb13
JB		 8517 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8518 return -EINVAL;
8519
8520 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8521 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8522 return -EINVAL;
8523 new_triggers.gtk_rekey_failure = true;
8524 }
8525
8526 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8527 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8528 return -EINVAL;
8529 new_triggers.eap_identity_req = true;
8530 }
8531
8532 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8533 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8534 return -EINVAL;
8535 new_triggers.four_way_handshake = true;
8536 }
8537
8538 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8539 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8540 return -EINVAL;
8541 new_triggers.rfkill_release = true;
8542 }
8543
ff1b6e69
JB		 8544 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8545 struct nlattr *pat;
8546 int n_patterns = 0;
bb92d199 8547 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8548 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8549
8550 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8551 rem)
8552 n_patterns++;
8553 if (n_patterns > wowlan->n_patterns)
8554 return -EINVAL;
8555
8556 new_triggers.patterns = kcalloc(n_patterns,
8557 sizeof(new_triggers.patterns[0]),
8558 GFP_KERNEL);
8559 if (!new_triggers.patterns)
8560 return -ENOMEM;
8561
8562 new_triggers.n_patterns = n_patterns;
8563 i = 0;
8564
8565 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8566 rem) {
922bd80f
JB		 8567 u8 *mask_pat;
8568
50ac6607
AK		 8569 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8570 nla_len(pat), NULL);
ff1b6e69 8571 err = -EINVAL;
50ac6607
AK		 8572 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8573 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8574 goto error;
50ac6607 8575 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8576 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8577 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8578 goto error;
8579 if (pat_len > wowlan->pattern_max_len ||
8580 pat_len < wowlan->pattern_min_len)
8581 goto error;
8582
50ac6607 8583 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8584 pkt_offset = 0;
8585 else
8586 pkt_offset = nla_get_u32(
50ac6607 8587 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8588 if (pkt_offset > wowlan->max_pkt_offset)
8589 goto error;
8590 new_triggers.patterns[i].pkt_offset = pkt_offset;
8591
922bd80f
JB		 8592 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8593 if (!mask_pat) {
ff1b6e69
JB		 8594 err = -ENOMEM;
8595 goto error;
8596 }
922bd80f
JB		 8597 new_triggers.patterns[i].mask = mask_pat;
8598 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8599 mask_len);
922bd80f
JB		 8600 mask_pat += mask_len;
8601 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8602 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8603 memcpy(mask_pat,
50ac6607 8604 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8605 pat_len);
8606 i++;
8607 }
8608 }
8609
2a0e047e
JB		 8610 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8611 err = nl80211_parse_wowlan_tcp(
8612 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8613 &new_triggers);
8614 if (err)
8615 goto error;
8616 }
8617
ae33bd81
JB		 8618 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8619 if (!ntrig) {
8620 err = -ENOMEM;
8621 goto error;
ff1b6e69 8622 }
ae33bd81 8623 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8624 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8625
ae33bd81 8626 set_wakeup:
6abb9cb9
JB		 8627 if (rdev->ops->set_wakeup &&
8628 prev_enabled != !!rdev->wiphy.wowlan_config)
8629 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8630
ff1b6e69
JB		 8631 return 0;
8632 error:
8633 for (i = 0; i < new_triggers.n_patterns; i++)
8634 kfree(new_triggers.patterns[i].mask);
8635 kfree(new_triggers.patterns);
2a0e047e
JB		 8636 if (new_triggers.tcp && new_triggers.tcp->sock)
8637 sock_release(new_triggers.tcp->sock);
8638 kfree(new_triggers.tcp);
ff1b6e69
JB		 8639 return err;
8640}
dfb89c56 8641#endif
ff1b6e69 8642
be29b99a
AK		 8643static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8644 struct cfg80211_registered_device *rdev)
8645{
8646 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8647 int i, j, pat_len;
8648 struct cfg80211_coalesce_rules *rule;
8649
8650 if (!rdev->coalesce->n_rules)
8651 return 0;
8652
8653 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8654 if (!nl_rules)
8655 return -ENOBUFS;
8656
8657 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8658 nl_rule = nla_nest_start(msg, i + 1);
8659 if (!nl_rule)
8660 return -ENOBUFS;
8661
8662 rule = &rdev->coalesce->rules[i];
8663 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8664 rule->delay))
8665 return -ENOBUFS;
8666
8667 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8668 rule->condition))
8669 return -ENOBUFS;
8670
8671 nl_pats = nla_nest_start(msg,
8672 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8673 if (!nl_pats)
8674 return -ENOBUFS;
8675
8676 for (j = 0; j < rule->n_patterns; j++) {
8677 nl_pat = nla_nest_start(msg, j + 1);
8678 if (!nl_pat)
8679 return -ENOBUFS;
8680 pat_len = rule->patterns[j].pattern_len;
8681 if (nla_put(msg, NL80211_PKTPAT_MASK,
8682 DIV_ROUND_UP(pat_len, 8),
8683 rule->patterns[j].mask) ||
8684 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8685 rule->patterns[j].pattern) ||
8686 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8687 rule->patterns[j].pkt_offset))
8688 return -ENOBUFS;
8689 nla_nest_end(msg, nl_pat);
8690 }
8691 nla_nest_end(msg, nl_pats);
8692 nla_nest_end(msg, nl_rule);
8693 }
8694 nla_nest_end(msg, nl_rules);
8695
8696 return 0;
8697}
8698
8699static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8700{
8701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8702 struct sk_buff *msg;
8703 void *hdr;
8704
8705 if (!rdev->wiphy.coalesce)
8706 return -EOPNOTSUPP;
8707
8708 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8709 if (!msg)
8710 return -ENOMEM;
8711
8712 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8713 NL80211_CMD_GET_COALESCE);
8714 if (!hdr)
8715 goto nla_put_failure;
8716
8717 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8718 goto nla_put_failure;
8719
8720 genlmsg_end(msg, hdr);
8721 return genlmsg_reply(msg, info);
8722
8723nla_put_failure:
8724 nlmsg_free(msg);
8725 return -ENOBUFS;
8726}
8727
8728void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8729{
8730 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8731 int i, j;
8732 struct cfg80211_coalesce_rules *rule;
8733
8734 if (!coalesce)
8735 return;
8736
8737 for (i = 0; i < coalesce->n_rules; i++) {
8738 rule = &coalesce->rules[i];
8739 for (j = 0; j < rule->n_patterns; j++)
8740 kfree(rule->patterns[j].mask);
8741 kfree(rule->patterns);
8742 }
8743 kfree(coalesce->rules);
8744 kfree(coalesce);
8745 rdev->coalesce = NULL;
8746}
8747
8748static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8749 struct nlattr *rule,
8750 struct cfg80211_coalesce_rules *new_rule)
8751{
8752 int err, i;
8753 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8754 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8755 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8756 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8757
8758 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8759 nla_len(rule), nl80211_coalesce_policy);
8760 if (err)
8761 return err;
8762
8763 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8764 new_rule->delay =
8765 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8766 if (new_rule->delay > coalesce->max_delay)
8767 return -EINVAL;
8768
8769 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8770 new_rule->condition =
8771 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8772 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8773 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8774 return -EINVAL;
8775
8776 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8777 return -EINVAL;
8778
8779 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8780 rem)
8781 n_patterns++;
8782 if (n_patterns > coalesce->n_patterns)
8783 return -EINVAL;
8784
8785 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8786 GFP_KERNEL);
8787 if (!new_rule->patterns)
8788 return -ENOMEM;
8789
8790 new_rule->n_patterns = n_patterns;
8791 i = 0;
8792
8793 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8794 rem) {
922bd80f
JB		 8795 u8 *mask_pat;
8796
be29b99a
AK		 8797 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8798 nla_len(pat), NULL);
8799 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8800 !pat_tb[NL80211_PKTPAT_PATTERN])
8801 return -EINVAL;
8802 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8803 mask_len = DIV_ROUND_UP(pat_len, 8);
8804 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8805 return -EINVAL;
8806 if (pat_len > coalesce->pattern_max_len ||
8807 pat_len < coalesce->pattern_min_len)
8808 return -EINVAL;
8809
8810 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8811 pkt_offset = 0;
8812 else
8813 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8814 if (pkt_offset > coalesce->max_pkt_offset)
8815 return -EINVAL;
8816 new_rule->patterns[i].pkt_offset = pkt_offset;
8817
922bd80f
JB		 8818 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8819 if (!mask_pat)
be29b99a 8820 return -ENOMEM;
922bd80f
JB		 8821
8822 new_rule->patterns[i].mask = mask_pat;
8823 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8824 mask_len);
8825
8826 mask_pat += mask_len;
8827 new_rule->patterns[i].pattern = mask_pat;
be29b99a 8828 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 8829 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8830 pat_len);
be29b99a
AK		 8831 i++;
8832 }
8833
8834 return 0;
8835}
8836
8837static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8838{
8839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8840 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8841 struct cfg80211_coalesce new_coalesce = {};
8842 struct cfg80211_coalesce *n_coalesce;
8843 int err, rem_rule, n_rules = 0, i, j;
8844 struct nlattr *rule;
8845 struct cfg80211_coalesce_rules *tmp_rule;
8846
8847 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8848 return -EOPNOTSUPP;
8849
8850 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8851 cfg80211_rdev_free_coalesce(rdev);
8852 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8853 return 0;
8854 }
8855
8856 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8857 rem_rule)
8858 n_rules++;
8859 if (n_rules > coalesce->n_rules)
8860 return -EINVAL;
8861
8862 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8863 GFP_KERNEL);
8864 if (!new_coalesce.rules)
8865 return -ENOMEM;
8866
8867 new_coalesce.n_rules = n_rules;
8868 i = 0;
8869
8870 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8871 rem_rule) {
8872 err = nl80211_parse_coalesce_rule(rdev, rule,
8873 &new_coalesce.rules[i]);
8874 if (err)
8875 goto error;
8876
8877 i++;
8878 }
8879
8880 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8881 if (err)
8882 goto error;
8883
8884 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8885 if (!n_coalesce) {
8886 err = -ENOMEM;
8887 goto error;
8888 }
8889 cfg80211_rdev_free_coalesce(rdev);
8890 rdev->coalesce = n_coalesce;
8891
8892 return 0;
8893error:
8894 for (i = 0; i < new_coalesce.n_rules; i++) {
8895 tmp_rule = &new_coalesce.rules[i];
8896 for (j = 0; j < tmp_rule->n_patterns; j++)
8897 kfree(tmp_rule->patterns[j].mask);
8898 kfree(tmp_rule->patterns);
8899 }
8900 kfree(new_coalesce.rules);
8901
8902 return err;
8903}
8904
e5497d76
JB		 8905static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8906{
8907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8908 struct net_device *dev = info->user_ptr[1];
8909 struct wireless_dev *wdev = dev->ieee80211_ptr;
8910 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8911 struct cfg80211_gtk_rekey_data rekey_data;
8912 int err;
8913
8914 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8915 return -EINVAL;
8916
8917 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8918 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8919 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8920 nl80211_rekey_policy);
8921 if (err)
8922 return err;
8923
8924 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8925 return -ERANGE;
8926 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8927 return -ERANGE;
8928 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8929 return -ERANGE;
8930
8931 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8932 NL80211_KEK_LEN);
8933 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8934 NL80211_KCK_LEN);
8935 memcpy(rekey_data.replay_ctr,
8936 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8937 NL80211_REPLAY_CTR_LEN);
8938
8939 wdev_lock(wdev);
8940 if (!wdev->current_bss) {
8941 err = -ENOTCONN;
8942 goto out;
8943 }
8944
8945 if (!rdev->ops->set_rekey_data) {
8946 err = -EOPNOTSUPP;
8947 goto out;
8948 }
8949
e35e4d28 8950 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8951 out:
8952 wdev_unlock(wdev);
8953 return err;
8954}
8955
28946da7
JB		 8956static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8957 struct genl_info *info)
8958{
8959 struct net_device *dev = info->user_ptr[1];
8960 struct wireless_dev *wdev = dev->ieee80211_ptr;
8961
8962 if (wdev->iftype != NL80211_IFTYPE_AP &&
8963 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8964 return -EINVAL;
8965
15e47304 8966 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8967 return -EBUSY;
8968
15e47304 8969 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8970 return 0;
8971}
8972
7f6cf311
JB		 8973static int nl80211_probe_client(struct sk_buff *skb,
8974 struct genl_info *info)
8975{
8976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8977 struct net_device *dev = info->user_ptr[1];
8978 struct wireless_dev *wdev = dev->ieee80211_ptr;
8979 struct sk_buff *msg;
8980 void *hdr;
8981 const u8 *addr;
8982 u64 cookie;
8983 int err;
8984
8985 if (wdev->iftype != NL80211_IFTYPE_AP &&
8986 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8987 return -EOPNOTSUPP;
8988
8989 if (!info->attrs[NL80211_ATTR_MAC])
8990 return -EINVAL;
8991
8992 if (!rdev->ops->probe_client)
8993 return -EOPNOTSUPP;
8994
8995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8996 if (!msg)
8997 return -ENOMEM;
8998
15e47304 8999 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9000 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9001 if (!hdr) {
9002 err = -ENOBUFS;
7f6cf311
JB		 9003 goto free_msg;
9004 }
9005
9006 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9007
e35e4d28 9008 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9009 if (err)
9010 goto free_msg;
9011
9360ffd1
DM		 9012 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9013 goto nla_put_failure;
7f6cf311
JB		 9014
9015 genlmsg_end(msg, hdr);
9016
9017 return genlmsg_reply(msg, info);
9018
9019 nla_put_failure:
9020 err = -ENOBUFS;
9021 free_msg:
9022 nlmsg_free(msg);
9023 return err;
9024}
9025
5e760230
JB		 9026static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9027{
9028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9029 struct cfg80211_beacon_registration *reg, *nreg;
9030 int rv;
5e760230
JB		 9031
9032 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9033 return -EOPNOTSUPP;
9034
37c73b5f
BG		 9035 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9036 if (!nreg)
9037 return -ENOMEM;
9038
9039 /* First, check if already registered. */
9040 spin_lock_bh(&rdev->beacon_registrations_lock);
9041 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9042 if (reg->nlportid == info->snd_portid) {
9043 rv = -EALREADY;
9044 goto out_err;
9045 }
9046 }
9047 /* Add it to the list */
9048 nreg->nlportid = info->snd_portid;
9049 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9050
37c73b5f 9051 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9052
9053 return 0;
37c73b5f
BG		 9054out_err:
9055 spin_unlock_bh(&rdev->beacon_registrations_lock);
9056 kfree(nreg);
9057 return rv;
5e760230
JB		 9058}
9059
98104fde
JB		 9060static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9061{
9062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9063 struct wireless_dev *wdev = info->user_ptr[1];
9064 int err;
9065
9066 if (!rdev->ops->start_p2p_device)
9067 return -EOPNOTSUPP;
9068
9069 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9070 return -EOPNOTSUPP;
9071
9072 if (wdev->p2p_started)
9073 return 0;
9074
b6a55015
LC		 9075 if (rfkill_blocked(rdev->rfkill))
9076 return -ERFKILL;
98104fde 9077
eeb126e9 9078 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9079 if (err)
9080 return err;
9081
9082 wdev->p2p_started = true;
98104fde 9083 rdev->opencount++;
98104fde
JB		 9084
9085 return 0;
9086}
9087
9088static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9089{
9090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9091 struct wireless_dev *wdev = info->user_ptr[1];
9092
9093 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9094 return -EOPNOTSUPP;
9095
9096 if (!rdev->ops->stop_p2p_device)
9097 return -EOPNOTSUPP;
9098
f9f47529 9099 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9100
9101 return 0;
9102}
9103
3713b4e3
JB		 9104static int nl80211_get_protocol_features(struct sk_buff *skb,
9105 struct genl_info *info)
9106{
9107 void *hdr;
9108 struct sk_buff *msg;
9109
9110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9111 if (!msg)
9112 return -ENOMEM;
9113
9114 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9115 NL80211_CMD_GET_PROTOCOL_FEATURES);
9116 if (!hdr)
9117 goto nla_put_failure;
9118
9119 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9120 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9121 goto nla_put_failure;
9122
9123 genlmsg_end(msg, hdr);
9124 return genlmsg_reply(msg, info);
9125
9126 nla_put_failure:
9127 kfree_skb(msg);
9128 return -ENOBUFS;
9129}
9130
355199e0
JM		 9131static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9132{
9133 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9134 struct cfg80211_update_ft_ies_params ft_params;
9135 struct net_device *dev = info->user_ptr[1];
9136
9137 if (!rdev->ops->update_ft_ies)
9138 return -EOPNOTSUPP;
9139
9140 if (!info->attrs[NL80211_ATTR_MDID] ||
9141 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9142 return -EINVAL;
9143
9144 memset(&ft_params, 0, sizeof(ft_params));
9145 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9146 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9147 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9148
9149 return rdev_update_ft_ies(rdev, dev, &ft_params);
9150}
9151
5de17984
AS		 9152static int nl80211_crit_protocol_start(struct sk_buff *skb,
9153 struct genl_info *info)
9154{
9155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9156 struct wireless_dev *wdev = info->user_ptr[1];
9157 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9158 u16 duration;
9159 int ret;
9160
9161 if (!rdev->ops->crit_proto_start)
9162 return -EOPNOTSUPP;
9163
9164 if (WARN_ON(!rdev->ops->crit_proto_stop))
9165 return -EINVAL;
9166
9167 if (rdev->crit_proto_nlportid)
9168 return -EBUSY;
9169
9170 /* determine protocol if provided */
9171 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9172 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9173
9174 if (proto >= NUM_NL80211_CRIT_PROTO)
9175 return -EINVAL;
9176
9177 /* timeout must be provided */
9178 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9179 return -EINVAL;
9180
9181 duration =
9182 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9183
9184 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9185 return -ERANGE;
9186
9187 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9188 if (!ret)
9189 rdev->crit_proto_nlportid = info->snd_portid;
9190
9191 return ret;
9192}
9193
9194static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9195 struct genl_info *info)
9196{
9197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9198 struct wireless_dev *wdev = info->user_ptr[1];
9199
9200 if (!rdev->ops->crit_proto_stop)
9201 return -EOPNOTSUPP;
9202
9203 if (rdev->crit_proto_nlportid) {
9204 rdev->crit_proto_nlportid = 0;
9205 rdev_crit_proto_stop(rdev, wdev);
9206 }
9207 return 0;
9208}
9209
ad7e718c
JB		 9210static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9211{
9212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9213 struct wireless_dev *wdev =
9214 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9215 int i, err;
9216 u32 vid, subcmd;
9217
9218 if (!rdev->wiphy.vendor_commands)
9219 return -EOPNOTSUPP;
9220
9221 if (IS_ERR(wdev)) {
9222 err = PTR_ERR(wdev);
9223 if (err != -EINVAL)
9224 return err;
9225 wdev = NULL;
9226 } else if (wdev->wiphy != &rdev->wiphy) {
9227 return -EINVAL;
9228 }
9229
9230 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9231 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9232 return -EINVAL;
9233
9234 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9235 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9236 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9237 const struct wiphy_vendor_command *vcmd;
9238 void *data = NULL;
9239 int len = 0;
9240
9241 vcmd = &rdev->wiphy.vendor_commands[i];
9242
9243 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9244 continue;
9245
9246 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9247 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9248 if (!wdev)
9249 return -EINVAL;
9250 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9251 !wdev->netdev)
9252 return -EINVAL;
9253
9254 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9255 if (wdev->netdev &&
9256 !netif_running(wdev->netdev))
9257 return -ENETDOWN;
9258 if (!wdev->netdev && !wdev->p2p_started)
9259 return -ENETDOWN;
9260 }
9261 } else {
9262 wdev = NULL;
9263 }
9264
9265 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9266 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9267 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9268 }
9269
9270 rdev->cur_cmd_info = info;
9271 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9272 data, len);
9273 rdev->cur_cmd_info = NULL;
9274 return err;
9275 }
9276
9277 return -EOPNOTSUPP;
9278}
9279
9280struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9281 enum nl80211_commands cmd,
9282 enum nl80211_attrs attr,
9283 int approxlen)
9284{
f26cbf40 9285 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9286
9287 if (WARN_ON(!rdev->cur_cmd_info))
9288 return NULL;
9289
9290 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9291 rdev->cur_cmd_info->snd_portid,
9292 rdev->cur_cmd_info->snd_seq,
567ffc35 9293 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9294}
9295EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9296
9297int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9298{
9299 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9300 void *hdr = ((void **)skb->cb)[1];
9301 struct nlattr *data = ((void **)skb->cb)[2];
9302
9303 if (WARN_ON(!rdev->cur_cmd_info)) {
9304 kfree_skb(skb);
9305 return -EINVAL;
9306 }
9307
9308 nla_nest_end(skb, data);
9309 genlmsg_end(skb, hdr);
9310 return genlmsg_reply(skb, rdev->cur_cmd_info);
9311}
9312EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9313
9314
fa9ffc74
KP		 9315static int nl80211_set_qos_map(struct sk_buff *skb,
9316 struct genl_info *info)
9317{
9318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9319 struct cfg80211_qos_map *qos_map = NULL;
9320 struct net_device *dev = info->user_ptr[1];
9321 u8 *pos, len, num_des, des_len, des;
9322 int ret;
9323
9324 if (!rdev->ops->set_qos_map)
9325 return -EOPNOTSUPP;
9326
9327 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9328 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9329 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9330
9331 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9332 len > IEEE80211_QOS_MAP_LEN_MAX)
9333 return -EINVAL;
9334
9335 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9336 if (!qos_map)
9337 return -ENOMEM;
9338
9339 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9340 if (num_des) {
9341 des_len = num_des *
9342 sizeof(struct cfg80211_dscp_exception);
9343 memcpy(qos_map->dscp_exception, pos, des_len);
9344 qos_map->num_des = num_des;
9345 for (des = 0; des < num_des; des++) {
9346 if (qos_map->dscp_exception[des].up > 7) {
9347 kfree(qos_map);
9348 return -EINVAL;
9349 }
9350 }
9351 pos += des_len;
9352 }
9353 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9354 }
9355
9356 wdev_lock(dev->ieee80211_ptr);
9357 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9358 if (!ret)
9359 ret = rdev_set_qos_map(rdev, dev, qos_map);
9360 wdev_unlock(dev->ieee80211_ptr);
9361
9362 kfree(qos_map);
9363 return ret;
9364}
9365
4c476991
JB		 9366#define NL80211_FLAG_NEED_WIPHY 0x01
9367#define NL80211_FLAG_NEED_NETDEV 0x02
9368#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9369#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9370#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9371 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9372#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9373/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9374#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9375 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9376
f84f771d 9377static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9378 struct genl_info *info)
9379{
9380 struct cfg80211_registered_device *rdev;
89a54e48 9381 struct wireless_dev *wdev;
4c476991 9382 struct net_device *dev;
4c476991
JB		 9383 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9384
9385 if (rtnl)
9386 rtnl_lock();
9387
9388 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9389 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9390 if (IS_ERR(rdev)) {
9391 if (rtnl)
9392 rtnl_unlock();
9393 return PTR_ERR(rdev);
9394 }
9395 info->user_ptr[0] = rdev;
1bf614ef
JB		 9396 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9397 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9398 ASSERT_RTNL();
9399
89a54e48
JB		 9400 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9401 info->attrs);
9402 if (IS_ERR(wdev)) {
4c476991
JB		 9403 if (rtnl)
9404 rtnl_unlock();
89a54e48 9405 return PTR_ERR(wdev);
4c476991 9406 }
89a54e48 9407
89a54e48 9408 dev = wdev->netdev;
f26cbf40 9409 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9410
1bf614ef
JB		 9411 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9412 if (!dev) {
1bf614ef
JB		 9413 if (rtnl)
9414 rtnl_unlock();
9415 return -EINVAL;
9416 }
9417
9418 info->user_ptr[1] = dev;
9419 } else {
9420 info->user_ptr[1] = wdev;
41265714 9421 }
1bf614ef
JB		 9422
9423 if (dev) {
9424 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9425 !netif_running(dev)) {
1bf614ef
JB		 9426 if (rtnl)
9427 rtnl_unlock();
9428 return -ENETDOWN;
9429 }
9430
9431 dev_hold(dev);
98104fde
JB		 9432 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9433 if (!wdev->p2p_started) {
98104fde
JB		 9434 if (rtnl)
9435 rtnl_unlock();
9436 return -ENETDOWN;
9437 }
41265714 9438 }
89a54e48 9439
4c476991 9440 info->user_ptr[0] = rdev;
4c476991
JB		 9441 }
9442
9443 return 0;
9444}
9445
f84f771d 9446static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9447 struct genl_info *info)
9448{
1bf614ef
JB		 9449 if (info->user_ptr[1]) {
9450 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9451 struct wireless_dev *wdev = info->user_ptr[1];
9452
9453 if (wdev->netdev)
9454 dev_put(wdev->netdev);
9455 } else {
9456 dev_put(info->user_ptr[1]);
9457 }
9458 }
4c476991
JB		 9459 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9460 rtnl_unlock();
9461}
9462
4534de83 9463static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9464 {
9465 .cmd = NL80211_CMD_GET_WIPHY,
9466 .doit = nl80211_get_wiphy,
9467 .dumpit = nl80211_dump_wiphy,
86e8cf98 9468 .done = nl80211_dump_wiphy_done,
55682965
JB		 9469 .policy = nl80211_policy,
9470 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9471 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9472 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9473 },
9474 {
9475 .cmd = NL80211_CMD_SET_WIPHY,
9476 .doit = nl80211_set_wiphy,
9477 .policy = nl80211_policy,
9478 .flags = GENL_ADMIN_PERM,
4c476991 9479 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9480 },
9481 {
9482 .cmd = NL80211_CMD_GET_INTERFACE,
9483 .doit = nl80211_get_interface,
9484 .dumpit = nl80211_dump_interface,
9485 .policy = nl80211_policy,
9486 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9487 .internal_flags = NL80211_FLAG_NEED_WDEV |
9488 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9489 },
9490 {
9491 .cmd = NL80211_CMD_SET_INTERFACE,
9492 .doit = nl80211_set_interface,
9493 .policy = nl80211_policy,
9494 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9495 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9496 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9497 },
9498 {
9499 .cmd = NL80211_CMD_NEW_INTERFACE,
9500 .doit = nl80211_new_interface,
9501 .policy = nl80211_policy,
9502 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9503 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9504 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9505 },
9506 {
9507 .cmd = NL80211_CMD_DEL_INTERFACE,
9508 .doit = nl80211_del_interface,
9509 .policy = nl80211_policy,
41ade00f 9510 .flags = GENL_ADMIN_PERM,
84efbb84 9511 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9512 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9513 },
9514 {
9515 .cmd = NL80211_CMD_GET_KEY,
9516 .doit = nl80211_get_key,
9517 .policy = nl80211_policy,
9518 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9520 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9521 },
9522 {
9523 .cmd = NL80211_CMD_SET_KEY,
9524 .doit = nl80211_set_key,
9525 .policy = nl80211_policy,
9526 .flags = GENL_ADMIN_PERM,
41265714 9527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9528 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9529 },
9530 {
9531 .cmd = NL80211_CMD_NEW_KEY,
9532 .doit = nl80211_new_key,
9533 .policy = nl80211_policy,
9534 .flags = GENL_ADMIN_PERM,
41265714 9535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9536 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9537 },
9538 {
9539 .cmd = NL80211_CMD_DEL_KEY,
9540 .doit = nl80211_del_key,
9541 .policy = nl80211_policy,
55682965 9542 .flags = GENL_ADMIN_PERM,
41265714 9543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9544 NL80211_FLAG_NEED_RTNL,
55682965 9545 },
ed1b6cc7
JB		 9546 {
9547 .cmd = NL80211_CMD_SET_BEACON,
9548 .policy = nl80211_policy,
9549 .flags = GENL_ADMIN_PERM,
8860020e 9550 .doit = nl80211_set_beacon,
2b5f8b0b 9551 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9552 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9553 },
9554 {
8860020e 9555 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9556 .policy = nl80211_policy,
9557 .flags = GENL_ADMIN_PERM,
8860020e 9558 .doit = nl80211_start_ap,
2b5f8b0b 9559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9560 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9561 },
9562 {
8860020e 9563 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9564 .policy = nl80211_policy,
9565 .flags = GENL_ADMIN_PERM,
8860020e 9566 .doit = nl80211_stop_ap,
2b5f8b0b 9567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9568 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9569 },
5727ef1b
JB		 9570 {
9571 .cmd = NL80211_CMD_GET_STATION,
9572 .doit = nl80211_get_station,
2ec600d6 9573 .dumpit = nl80211_dump_station,
5727ef1b 9574 .policy = nl80211_policy,
4c476991
JB		 9575 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9576 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9577 },
9578 {
9579 .cmd = NL80211_CMD_SET_STATION,
9580 .doit = nl80211_set_station,
9581 .policy = nl80211_policy,
9582 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9584 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9585 },
9586 {
9587 .cmd = NL80211_CMD_NEW_STATION,
9588 .doit = nl80211_new_station,
9589 .policy = nl80211_policy,
9590 .flags = GENL_ADMIN_PERM,
41265714 9591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9592 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9593 },
9594 {
9595 .cmd = NL80211_CMD_DEL_STATION,
9596 .doit = nl80211_del_station,
9597 .policy = nl80211_policy,
2ec600d6 9598 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9600 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9601 },
9602 {
9603 .cmd = NL80211_CMD_GET_MPATH,
9604 .doit = nl80211_get_mpath,
9605 .dumpit = nl80211_dump_mpath,
9606 .policy = nl80211_policy,
9607 .flags = GENL_ADMIN_PERM,
41265714 9608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9609 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9610 },
9611 {
9612 .cmd = NL80211_CMD_SET_MPATH,
9613 .doit = nl80211_set_mpath,
9614 .policy = nl80211_policy,
9615 .flags = GENL_ADMIN_PERM,
41265714 9616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9617 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9618 },
9619 {
9620 .cmd = NL80211_CMD_NEW_MPATH,
9621 .doit = nl80211_new_mpath,
9622 .policy = nl80211_policy,
9623 .flags = GENL_ADMIN_PERM,
41265714 9624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9625 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9626 },
9627 {
9628 .cmd = NL80211_CMD_DEL_MPATH,
9629 .doit = nl80211_del_mpath,
9630 .policy = nl80211_policy,
9f1ba906 9631 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9633 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9634 },
9635 {
9636 .cmd = NL80211_CMD_SET_BSS,
9637 .doit = nl80211_set_bss,
9638 .policy = nl80211_policy,
b2e1b302 9639 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9641 NL80211_FLAG_NEED_RTNL,
b2e1b302 9642 },
f130347c
LR		 9643 {
9644 .cmd = NL80211_CMD_GET_REG,
9645 .doit = nl80211_get_reg,
9646 .policy = nl80211_policy,
5fe231e8 9647 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9648 /* can be retrieved by unprivileged users */
9649 },
b2e1b302
LR		 9650 {
9651 .cmd = NL80211_CMD_SET_REG,
9652 .doit = nl80211_set_reg,
9653 .policy = nl80211_policy,
9654 .flags = GENL_ADMIN_PERM,
5fe231e8 9655 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9656 },
9657 {
9658 .cmd = NL80211_CMD_REQ_SET_REG,
9659 .doit = nl80211_req_set_reg,
9660 .policy = nl80211_policy,
93da9cc1 9661 .flags = GENL_ADMIN_PERM,
9662 },
9663 {
24bdd9f4
JC		 9664 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9665 .doit = nl80211_get_mesh_config,
93da9cc1 9666 .policy = nl80211_policy,
9667 /* can be retrieved by unprivileged users */
2b5f8b0b 9668 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9669 NL80211_FLAG_NEED_RTNL,
93da9cc1 9670 },
9671 {
24bdd9f4
JC		 9672 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9673 .doit = nl80211_update_mesh_config,
93da9cc1 9674 .policy = nl80211_policy,
9aed3cc1 9675 .flags = GENL_ADMIN_PERM,
29cbe68c 9676 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9677 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9678 },
2a519311
JB		 9679 {
9680 .cmd = NL80211_CMD_TRIGGER_SCAN,
9681 .doit = nl80211_trigger_scan,
9682 .policy = nl80211_policy,
9683 .flags = GENL_ADMIN_PERM,
fd014284 9684 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9685 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9686 },
9687 {
9688 .cmd = NL80211_CMD_GET_SCAN,
9689 .policy = nl80211_policy,
9690 .dumpit = nl80211_dump_scan,
9691 },
807f8a8c
LC		 9692 {
9693 .cmd = NL80211_CMD_START_SCHED_SCAN,
9694 .doit = nl80211_start_sched_scan,
9695 .policy = nl80211_policy,
9696 .flags = GENL_ADMIN_PERM,
9697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9698 NL80211_FLAG_NEED_RTNL,
9699 },
9700 {
9701 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9702 .doit = nl80211_stop_sched_scan,
9703 .policy = nl80211_policy,
9704 .flags = GENL_ADMIN_PERM,
9705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9706 NL80211_FLAG_NEED_RTNL,
9707 },
636a5d36
JM		 9708 {
9709 .cmd = NL80211_CMD_AUTHENTICATE,
9710 .doit = nl80211_authenticate,
9711 .policy = nl80211_policy,
9712 .flags = GENL_ADMIN_PERM,
41265714 9713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9714 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9715 },
9716 {
9717 .cmd = NL80211_CMD_ASSOCIATE,
9718 .doit = nl80211_associate,
9719 .policy = nl80211_policy,
9720 .flags = GENL_ADMIN_PERM,
41265714 9721 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9722 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9723 },
9724 {
9725 .cmd = NL80211_CMD_DEAUTHENTICATE,
9726 .doit = nl80211_deauthenticate,
9727 .policy = nl80211_policy,
9728 .flags = GENL_ADMIN_PERM,
41265714 9729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9730 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9731 },
9732 {
9733 .cmd = NL80211_CMD_DISASSOCIATE,
9734 .doit = nl80211_disassociate,
9735 .policy = nl80211_policy,
9736 .flags = GENL_ADMIN_PERM,
41265714 9737 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9738 NL80211_FLAG_NEED_RTNL,
636a5d36 9739 },
04a773ad
JB		 9740 {
9741 .cmd = NL80211_CMD_JOIN_IBSS,
9742 .doit = nl80211_join_ibss,
9743 .policy = nl80211_policy,
9744 .flags = GENL_ADMIN_PERM,
41265714 9745 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9746 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9747 },
9748 {
9749 .cmd = NL80211_CMD_LEAVE_IBSS,
9750 .doit = nl80211_leave_ibss,
9751 .policy = nl80211_policy,
9752 .flags = GENL_ADMIN_PERM,
41265714 9753 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9754 NL80211_FLAG_NEED_RTNL,
04a773ad 9755 },
aff89a9b
JB		 9756#ifdef CONFIG_NL80211_TESTMODE
9757 {
9758 .cmd = NL80211_CMD_TESTMODE,
9759 .doit = nl80211_testmode_do,
71063f0e 9760 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9761 .policy = nl80211_policy,
9762 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9763 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9764 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9765 },
9766#endif
b23aa676
SO		 9767 {
9768 .cmd = NL80211_CMD_CONNECT,
9769 .doit = nl80211_connect,
9770 .policy = nl80211_policy,
9771 .flags = GENL_ADMIN_PERM,
41265714 9772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9773 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9774 },
9775 {
9776 .cmd = NL80211_CMD_DISCONNECT,
9777 .doit = nl80211_disconnect,
9778 .policy = nl80211_policy,
9779 .flags = GENL_ADMIN_PERM,
41265714 9780 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9781 NL80211_FLAG_NEED_RTNL,
b23aa676 9782 },
463d0183
JB		 9783 {
9784 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9785 .doit = nl80211_wiphy_netns,
9786 .policy = nl80211_policy,
9787 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9788 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9789 NL80211_FLAG_NEED_RTNL,
463d0183 9790 },
61fa713c
HS		 9791 {
9792 .cmd = NL80211_CMD_GET_SURVEY,
9793 .policy = nl80211_policy,
9794 .dumpit = nl80211_dump_survey,
9795 },
67fbb16b
SO		 9796 {
9797 .cmd = NL80211_CMD_SET_PMKSA,
9798 .doit = nl80211_setdel_pmksa,
9799 .policy = nl80211_policy,
9800 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9801 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9802 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9803 },
9804 {
9805 .cmd = NL80211_CMD_DEL_PMKSA,
9806 .doit = nl80211_setdel_pmksa,
9807 .policy = nl80211_policy,
9808 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9810 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9811 },
9812 {
9813 .cmd = NL80211_CMD_FLUSH_PMKSA,
9814 .doit = nl80211_flush_pmksa,
9815 .policy = nl80211_policy,
9816 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9818 NL80211_FLAG_NEED_RTNL,
67fbb16b 9819 },
9588bbd5
JM		 9820 {
9821 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9822 .doit = nl80211_remain_on_channel,
9823 .policy = nl80211_policy,
9824 .flags = GENL_ADMIN_PERM,
71bbc994 9825 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9826 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9827 },
9828 {
9829 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9830 .doit = nl80211_cancel_remain_on_channel,
9831 .policy = nl80211_policy,
9832 .flags = GENL_ADMIN_PERM,
71bbc994 9833 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9834 NL80211_FLAG_NEED_RTNL,
9588bbd5 9835 },
13ae75b1
JM		 9836 {
9837 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9838 .doit = nl80211_set_tx_bitrate_mask,
9839 .policy = nl80211_policy,
9840 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9841 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9842 NL80211_FLAG_NEED_RTNL,
13ae75b1 9843 },
026331c4 9844 {
2e161f78
JB		 9845 .cmd = NL80211_CMD_REGISTER_FRAME,
9846 .doit = nl80211_register_mgmt,
026331c4
JM		 9847 .policy = nl80211_policy,
9848 .flags = GENL_ADMIN_PERM,
71bbc994 9849 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9850 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9851 },
9852 {
2e161f78
JB		 9853 .cmd = NL80211_CMD_FRAME,
9854 .doit = nl80211_tx_mgmt,
026331c4 9855 .policy = nl80211_policy,
f7ca38df 9856 .flags = GENL_ADMIN_PERM,
71bbc994 9857 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9858 NL80211_FLAG_NEED_RTNL,
9859 },
9860 {
9861 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9862 .doit = nl80211_tx_mgmt_cancel_wait,
9863 .policy = nl80211_policy,
026331c4 9864 .flags = GENL_ADMIN_PERM,
71bbc994 9865 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9866 NL80211_FLAG_NEED_RTNL,
026331c4 9867 },
ffb9eb3d
KV		 9868 {
9869 .cmd = NL80211_CMD_SET_POWER_SAVE,
9870 .doit = nl80211_set_power_save,
9871 .policy = nl80211_policy,
9872 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9873 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9874 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9875 },
9876 {
9877 .cmd = NL80211_CMD_GET_POWER_SAVE,
9878 .doit = nl80211_get_power_save,
9879 .policy = nl80211_policy,
9880 /* can be retrieved by unprivileged users */
4c476991
JB		 9881 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9882 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9883 },
d6dc1a38
JO		 9884 {
9885 .cmd = NL80211_CMD_SET_CQM,
9886 .doit = nl80211_set_cqm,
9887 .policy = nl80211_policy,
9888 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9889 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9890 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9891 },
f444de05
JB		 9892 {
9893 .cmd = NL80211_CMD_SET_CHANNEL,
9894 .doit = nl80211_set_channel,
9895 .policy = nl80211_policy,
9896 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9898 NL80211_FLAG_NEED_RTNL,
f444de05 9899 },
e8347eba
BJ		 9900 {
9901 .cmd = NL80211_CMD_SET_WDS_PEER,
9902 .doit = nl80211_set_wds_peer,
9903 .policy = nl80211_policy,
9904 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9906 NL80211_FLAG_NEED_RTNL,
e8347eba 9907 },
29cbe68c
JB		 9908 {
9909 .cmd = NL80211_CMD_JOIN_MESH,
9910 .doit = nl80211_join_mesh,
9911 .policy = nl80211_policy,
9912 .flags = GENL_ADMIN_PERM,
9913 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9914 NL80211_FLAG_NEED_RTNL,
9915 },
9916 {
9917 .cmd = NL80211_CMD_LEAVE_MESH,
9918 .doit = nl80211_leave_mesh,
9919 .policy = nl80211_policy,
9920 .flags = GENL_ADMIN_PERM,
9921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9922 NL80211_FLAG_NEED_RTNL,
9923 },
dfb89c56 9924#ifdef CONFIG_PM
ff1b6e69
JB		 9925 {
9926 .cmd = NL80211_CMD_GET_WOWLAN,
9927 .doit = nl80211_get_wowlan,
9928 .policy = nl80211_policy,
9929 /* can be retrieved by unprivileged users */
9930 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9931 NL80211_FLAG_NEED_RTNL,
9932 },
9933 {
9934 .cmd = NL80211_CMD_SET_WOWLAN,
9935 .doit = nl80211_set_wowlan,
9936 .policy = nl80211_policy,
9937 .flags = GENL_ADMIN_PERM,
9938 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9939 NL80211_FLAG_NEED_RTNL,
9940 },
dfb89c56 9941#endif
e5497d76
JB		 9942 {
9943 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9944 .doit = nl80211_set_rekey_data,
9945 .policy = nl80211_policy,
9946 .flags = GENL_ADMIN_PERM,
9947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9948 NL80211_FLAG_NEED_RTNL,
9949 },
109086ce
AN		 9950 {
9951 .cmd = NL80211_CMD_TDLS_MGMT,
9952 .doit = nl80211_tdls_mgmt,
9953 .policy = nl80211_policy,
9954 .flags = GENL_ADMIN_PERM,
9955 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9956 NL80211_FLAG_NEED_RTNL,
9957 },
9958 {
9959 .cmd = NL80211_CMD_TDLS_OPER,
9960 .doit = nl80211_tdls_oper,
9961 .policy = nl80211_policy,
9962 .flags = GENL_ADMIN_PERM,
9963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9964 NL80211_FLAG_NEED_RTNL,
9965 },
28946da7
JB		 9966 {
9967 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9968 .doit = nl80211_register_unexpected_frame,
9969 .policy = nl80211_policy,
9970 .flags = GENL_ADMIN_PERM,
9971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9972 NL80211_FLAG_NEED_RTNL,
9973 },
7f6cf311
JB		 9974 {
9975 .cmd = NL80211_CMD_PROBE_CLIENT,
9976 .doit = nl80211_probe_client,
9977 .policy = nl80211_policy,
9978 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9980 NL80211_FLAG_NEED_RTNL,
9981 },
5e760230
JB		 9982 {
9983 .cmd = NL80211_CMD_REGISTER_BEACONS,
9984 .doit = nl80211_register_beacons,
9985 .policy = nl80211_policy,
9986 .flags = GENL_ADMIN_PERM,
9987 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9988 NL80211_FLAG_NEED_RTNL,
9989 },
1d9d9213
SW		 9990 {
9991 .cmd = NL80211_CMD_SET_NOACK_MAP,
9992 .doit = nl80211_set_noack_map,
9993 .policy = nl80211_policy,
9994 .flags = GENL_ADMIN_PERM,
9995 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9996 NL80211_FLAG_NEED_RTNL,
9997 },
98104fde
JB		 9998 {
9999 .cmd = NL80211_CMD_START_P2P_DEVICE,
10000 .doit = nl80211_start_p2p_device,
10001 .policy = nl80211_policy,
10002 .flags = GENL_ADMIN_PERM,
10003 .internal_flags = NL80211_FLAG_NEED_WDEV |
10004 NL80211_FLAG_NEED_RTNL,
10005 },
10006 {
10007 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10008 .doit = nl80211_stop_p2p_device,
10009 .policy = nl80211_policy,
10010 .flags = GENL_ADMIN_PERM,
10011 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10012 NL80211_FLAG_NEED_RTNL,
10013 },
f4e583c8
AQ		 10014 {
10015 .cmd = NL80211_CMD_SET_MCAST_RATE,
10016 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10017 .policy = nl80211_policy,
10018 .flags = GENL_ADMIN_PERM,
10019 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10020 NL80211_FLAG_NEED_RTNL,
10021 },
10022 {
10023 .cmd = NL80211_CMD_SET_MAC_ACL,
10024 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10025 .policy = nl80211_policy,
10026 .flags = GENL_ADMIN_PERM,
10027 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10028 NL80211_FLAG_NEED_RTNL,
10029 },
04f39047
SW		 10030 {
10031 .cmd = NL80211_CMD_RADAR_DETECT,
10032 .doit = nl80211_start_radar_detection,
10033 .policy = nl80211_policy,
10034 .flags = GENL_ADMIN_PERM,
10035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10036 NL80211_FLAG_NEED_RTNL,
10037 },
3713b4e3
JB		 10038 {
10039 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10040 .doit = nl80211_get_protocol_features,
10041 .policy = nl80211_policy,
10042 },
355199e0
JM		 10043 {
10044 .cmd = NL80211_CMD_UPDATE_FT_IES,
10045 .doit = nl80211_update_ft_ies,
10046 .policy = nl80211_policy,
10047 .flags = GENL_ADMIN_PERM,
10048 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10049 NL80211_FLAG_NEED_RTNL,
10050 },
5de17984
AS		 10051 {
10052 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10053 .doit = nl80211_crit_protocol_start,
10054 .policy = nl80211_policy,
10055 .flags = GENL_ADMIN_PERM,
10056 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10057 NL80211_FLAG_NEED_RTNL,
10058 },
10059 {
10060 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10061 .doit = nl80211_crit_protocol_stop,
10062 .policy = nl80211_policy,
10063 .flags = GENL_ADMIN_PERM,
10064 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10065 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10066 },
10067 {
10068 .cmd = NL80211_CMD_GET_COALESCE,
10069 .doit = nl80211_get_coalesce,
10070 .policy = nl80211_policy,
10071 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10072 NL80211_FLAG_NEED_RTNL,
10073 },
10074 {
10075 .cmd = NL80211_CMD_SET_COALESCE,
10076 .doit = nl80211_set_coalesce,
10077 .policy = nl80211_policy,
10078 .flags = GENL_ADMIN_PERM,
10079 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10080 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10081 },
10082 {
10083 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10084 .doit = nl80211_channel_switch,
10085 .policy = nl80211_policy,
10086 .flags = GENL_ADMIN_PERM,
10087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10088 NL80211_FLAG_NEED_RTNL,
10089 },
ad7e718c
JB		 10090 {
10091 .cmd = NL80211_CMD_VENDOR,
10092 .doit = nl80211_vendor_cmd,
10093 .policy = nl80211_policy,
10094 .flags = GENL_ADMIN_PERM,
10095 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10096 NL80211_FLAG_NEED_RTNL,
10097 },
fa9ffc74
KP		 10098 {
10099 .cmd = NL80211_CMD_SET_QOS_MAP,
10100 .doit = nl80211_set_qos_map,
10101 .policy = nl80211_policy,
10102 .flags = GENL_ADMIN_PERM,
10103 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10104 NL80211_FLAG_NEED_RTNL,
10105 },
55682965 10106};
9588bbd5 10107
55682965
JB		 10108/* notification functions */
10109
3bb20556
JB		 10110void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10111 enum nl80211_commands cmd)
55682965
JB		 10112{
10113 struct sk_buff *msg;
86e8cf98 10114 struct nl80211_dump_wiphy_state state = {};
55682965 10115
3bb20556
JB		 10116 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10117 cmd != NL80211_CMD_DEL_WIPHY);
10118
fd2120ca 10119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10120 if (!msg)
10121 return;
10122
3bb20556 10123 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10124 nlmsg_free(msg);
10125 return;
10126 }
10127
68eb5503 10128 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10129 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10130}
10131
362a415d
JB		 10132static int nl80211_add_scan_req(struct sk_buff *msg,
10133 struct cfg80211_registered_device *rdev)
10134{
10135 struct cfg80211_scan_request *req = rdev->scan_req;
10136 struct nlattr *nest;
10137 int i;
10138
10139 if (WARN_ON(!req))
10140 return 0;
10141
10142 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10143 if (!nest)
10144 goto nla_put_failure;
9360ffd1
DM		 10145 for (i = 0; i < req->n_ssids; i++) {
10146 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10147 goto nla_put_failure;
10148 }
362a415d
JB		 10149 nla_nest_end(msg, nest);
10150
10151 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10152 if (!nest)
10153 goto nla_put_failure;
9360ffd1
DM		 10154 for (i = 0; i < req->n_channels; i++) {
10155 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10156 goto nla_put_failure;
10157 }
362a415d
JB		 10158 nla_nest_end(msg, nest);
10159
9360ffd1
DM		 10160 if (req->ie &&
10161 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10162 goto nla_put_failure;
362a415d 10163
ae917c9f
JB		 10164 if (req->flags &&
10165 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10166 goto nla_put_failure;
ed473771 10167
362a415d
JB		 10168 return 0;
10169 nla_put_failure:
10170 return -ENOBUFS;
10171}
10172
a538e2d5
JB		 10173static int nl80211_send_scan_msg(struct sk_buff *msg,
10174 struct cfg80211_registered_device *rdev,
fd014284 10175 struct wireless_dev *wdev,
15e47304 10176 u32 portid, u32 seq, int flags,
a538e2d5 10177 u32 cmd)
2a519311
JB		 10178{
10179 void *hdr;
10180
15e47304 10181 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10182 if (!hdr)
10183 return -1;
10184
9360ffd1 10185 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10186 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10187 wdev->netdev->ifindex)) ||
10188 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10189 goto nla_put_failure;
2a519311 10190
362a415d
JB		 10191 /* ignore errors and send incomplete event anyway */
10192 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10193
10194 return genlmsg_end(msg, hdr);
10195
10196 nla_put_failure:
10197 genlmsg_cancel(msg, hdr);
10198 return -EMSGSIZE;
10199}
10200
807f8a8c
LC		 10201static int
10202nl80211_send_sched_scan_msg(struct sk_buff *msg,
10203 struct cfg80211_registered_device *rdev,
10204 struct net_device *netdev,
15e47304 10205 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10206{
10207 void *hdr;
10208
15e47304 10209 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10210 if (!hdr)
10211 return -1;
10212
9360ffd1
DM		 10213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10214 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10215 goto nla_put_failure;
807f8a8c
LC		 10216
10217 return genlmsg_end(msg, hdr);
10218
10219 nla_put_failure:
10220 genlmsg_cancel(msg, hdr);
10221 return -EMSGSIZE;
10222}
10223
a538e2d5 10224void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10225 struct wireless_dev *wdev)
a538e2d5
JB		 10226{
10227 struct sk_buff *msg;
10228
58050fce 10229 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10230 if (!msg)
10231 return;
10232
fd014284 10233 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10234 NL80211_CMD_TRIGGER_SCAN) < 0) {
10235 nlmsg_free(msg);
10236 return;
10237 }
10238
68eb5503 10239 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10240 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10241}
10242
f9d15d16
JB		 10243struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10244 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10245{
10246 struct sk_buff *msg;
10247
fd2120ca 10248 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10249 if (!msg)
f9d15d16 10250 return NULL;
2a519311 10251
fd014284 10252 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10253 aborted ? NL80211_CMD_SCAN_ABORTED :
10254 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10255 nlmsg_free(msg);
f9d15d16 10256 return NULL;
2a519311
JB		 10257 }
10258
f9d15d16 10259 return msg;
2a519311
JB		 10260}
10261
f9d15d16
JB		 10262void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10263 struct sk_buff *msg)
2a519311 10264{
2a519311
JB		 10265 if (!msg)
10266 return;
10267
68eb5503 10268 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10269 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10270}
10271
807f8a8c
LC		 10272void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10273 struct net_device *netdev)
10274{
10275 struct sk_buff *msg;
10276
10277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10278 if (!msg)
10279 return;
10280
10281 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10282 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10283 nlmsg_free(msg);
10284 return;
10285 }
10286
68eb5503 10287 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10288 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10289}
10290
10291void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10292 struct net_device *netdev, u32 cmd)
10293{
10294 struct sk_buff *msg;
10295
58050fce 10296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10297 if (!msg)
10298 return;
10299
10300 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10301 nlmsg_free(msg);
10302 return;
10303 }
10304
68eb5503 10305 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10306 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10307}
10308
73d54c9e
LR		 10309/*
10310 * This can happen on global regulatory changes or device specific settings
10311 * based on custom world regulatory domains.
10312 */
10313void nl80211_send_reg_change_event(struct regulatory_request *request)
10314{
10315 struct sk_buff *msg;
10316 void *hdr;
10317
fd2120ca 10318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10319 if (!msg)
10320 return;
10321
10322 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10323 if (!hdr) {
10324 nlmsg_free(msg);
10325 return;
10326 }
10327
10328 /* Userspace can always count this one always being set */
9360ffd1
DM		 10329 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10330 goto nla_put_failure;
10331
10332 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10333 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10334 NL80211_REGDOM_TYPE_WORLD))
10335 goto nla_put_failure;
10336 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10337 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10338 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10339 goto nla_put_failure;
10340 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10341 request->intersect) {
10342 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10343 NL80211_REGDOM_TYPE_INTERSECTION))
10344 goto nla_put_failure;
10345 } else {
10346 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10347 NL80211_REGDOM_TYPE_COUNTRY) ||
10348 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10349 request->alpha2))
10350 goto nla_put_failure;
10351 }
10352
f4173766 10353 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10354 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10355 goto nla_put_failure;
73d54c9e 10356
3b7b72ee 10357 genlmsg_end(msg, hdr);
73d54c9e 10358
bc43b28c 10359 rcu_read_lock();
68eb5503 10360 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10361 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10362 rcu_read_unlock();
73d54c9e
LR		 10363
10364 return;
10365
10366nla_put_failure:
10367 genlmsg_cancel(msg, hdr);
10368 nlmsg_free(msg);
10369}
10370
6039f6d2
JM		 10371static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10372 struct net_device *netdev,
10373 const u8 *buf, size_t len,
e6d6e342 10374 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10375{
10376 struct sk_buff *msg;
10377 void *hdr;
10378
e6d6e342 10379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10380 if (!msg)
10381 return;
10382
10383 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10384 if (!hdr) {
10385 nlmsg_free(msg);
10386 return;
10387 }
10388
9360ffd1
DM		 10389 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10390 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10391 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10392 goto nla_put_failure;
6039f6d2 10393
3b7b72ee 10394 genlmsg_end(msg, hdr);
6039f6d2 10395
68eb5503 10396 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10397 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10398 return;
10399
10400 nla_put_failure:
10401 genlmsg_cancel(msg, hdr);
10402 nlmsg_free(msg);
10403}
10404
10405void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10406 struct net_device *netdev, const u8 *buf,
10407 size_t len, gfp_t gfp)
6039f6d2
JM		 10408{
10409 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10410 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10411}
10412
10413void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10414 struct net_device *netdev, const u8 *buf,
e6d6e342 10415 size_t len, gfp_t gfp)
6039f6d2 10416{
e6d6e342
JB		 10417 nl80211_send_mlme_event(rdev, netdev, buf, len,
10418 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10419}
10420
53b46b84 10421void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10422 struct net_device *netdev, const u8 *buf,
10423 size_t len, gfp_t gfp)
6039f6d2
JM		 10424{
10425 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10426 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10427}
10428
53b46b84
JM		 10429void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10430 struct net_device *netdev, const u8 *buf,
e6d6e342 10431 size_t len, gfp_t gfp)
6039f6d2
JM		 10432{
10433 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10434 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10435}
10436
6ff57cf8
JB		 10437void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10438 size_t len)
cf4e594e 10439{
947add36
JB		 10440 struct wireless_dev *wdev = dev->ieee80211_ptr;
10441 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10442 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10443 const struct ieee80211_mgmt *mgmt = (void *)buf;
10444 u32 cmd;
947add36 10445
6ff57cf8
JB		 10446 if (WARN_ON(len < 2))
10447 return;
cf4e594e 10448
6ff57cf8
JB		 10449 if (ieee80211_is_deauth(mgmt->frame_control))
10450 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10451 else
10452 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10453
6ff57cf8
JB		 10454 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10455 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10456}
6ff57cf8 10457EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10458
1b06bb40
LR		 10459static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10460 struct net_device *netdev, int cmd,
e6d6e342 10461 const u8 *addr, gfp_t gfp)
1965c853
JM		 10462{
10463 struct sk_buff *msg;
10464 void *hdr;
10465
e6d6e342 10466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10467 if (!msg)
10468 return;
10469
10470 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10471 if (!hdr) {
10472 nlmsg_free(msg);
10473 return;
10474 }
10475
9360ffd1
DM		 10476 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10477 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10478 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10479 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10480 goto nla_put_failure;
1965c853 10481
3b7b72ee 10482 genlmsg_end(msg, hdr);
1965c853 10483
68eb5503 10484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10485 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10486 return;
10487
10488 nla_put_failure:
10489 genlmsg_cancel(msg, hdr);
10490 nlmsg_free(msg);
10491}
10492
10493void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10494 struct net_device *netdev, const u8 *addr,
10495 gfp_t gfp)
1965c853
JM		 10496{
10497 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10498 addr, gfp);
1965c853
JM		 10499}
10500
10501void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10502 struct net_device *netdev, const u8 *addr,
10503 gfp_t gfp)
1965c853 10504{
e6d6e342
JB		 10505 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10506 addr, gfp);
1965c853
JM		 10507}
10508
b23aa676
SO		 10509void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10510 struct net_device *netdev, const u8 *bssid,
10511 const u8 *req_ie, size_t req_ie_len,
10512 const u8 *resp_ie, size_t resp_ie_len,
10513 u16 status, gfp_t gfp)
10514{
10515 struct sk_buff *msg;
10516 void *hdr;
10517
58050fce 10518 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10519 if (!msg)
10520 return;
10521
10522 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10523 if (!hdr) {
10524 nlmsg_free(msg);
10525 return;
10526 }
10527
9360ffd1
DM		 10528 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10529 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10530 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10531 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10532 (req_ie &&
10533 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10534 (resp_ie &&
10535 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10536 goto nla_put_failure;
b23aa676 10537
3b7b72ee 10538 genlmsg_end(msg, hdr);
b23aa676 10539
68eb5503 10540 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10541 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10542 return;
10543
10544 nla_put_failure:
10545 genlmsg_cancel(msg, hdr);
10546 nlmsg_free(msg);
10547
10548}
10549
10550void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10551 struct net_device *netdev, const u8 *bssid,
10552 const u8 *req_ie, size_t req_ie_len,
10553 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10554{
10555 struct sk_buff *msg;
10556 void *hdr;
10557
58050fce 10558 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10559 if (!msg)
10560 return;
10561
10562 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10563 if (!hdr) {
10564 nlmsg_free(msg);
10565 return;
10566 }
10567
9360ffd1
DM		 10568 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10569 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10570 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10571 (req_ie &&
10572 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10573 (resp_ie &&
10574 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10575 goto nla_put_failure;
b23aa676 10576
3b7b72ee 10577 genlmsg_end(msg, hdr);
b23aa676 10578
68eb5503 10579 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10580 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10581 return;
10582
10583 nla_put_failure:
10584 genlmsg_cancel(msg, hdr);
10585 nlmsg_free(msg);
10586
10587}
10588
10589void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10590 struct net_device *netdev, u16 reason,
667503dd 10591 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10592{
10593 struct sk_buff *msg;
10594 void *hdr;
10595
58050fce 10596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10597 if (!msg)
10598 return;
10599
10600 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10601 if (!hdr) {
10602 nlmsg_free(msg);
10603 return;
10604 }
10605
9360ffd1
DM		 10606 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10607 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10608 (from_ap && reason &&
10609 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10610 (from_ap &&
10611 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10612 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10613 goto nla_put_failure;
b23aa676 10614
3b7b72ee 10615 genlmsg_end(msg, hdr);
b23aa676 10616
68eb5503 10617 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10618 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10619 return;
10620
10621 nla_put_failure:
10622 genlmsg_cancel(msg, hdr);
10623 nlmsg_free(msg);
10624
10625}
10626
04a773ad
JB		 10627void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10628 struct net_device *netdev, const u8 *bssid,
10629 gfp_t gfp)
10630{
10631 struct sk_buff *msg;
10632 void *hdr;
10633
fd2120ca 10634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10635 if (!msg)
10636 return;
10637
10638 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10639 if (!hdr) {
10640 nlmsg_free(msg);
10641 return;
10642 }
10643
9360ffd1
DM		 10644 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10645 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10646 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10647 goto nla_put_failure;
04a773ad 10648
3b7b72ee 10649 genlmsg_end(msg, hdr);
04a773ad 10650
68eb5503 10651 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10652 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10653 return;
10654
10655 nla_put_failure:
10656 genlmsg_cancel(msg, hdr);
10657 nlmsg_free(msg);
10658}
10659
947add36
JB		 10660void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10661 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10662{
947add36 10663 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10664 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10665 struct sk_buff *msg;
10666 void *hdr;
10667
947add36
JB		 10668 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10669 return;
10670
10671 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10672
c93b5e71
JC		 10673 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10674 if (!msg)
10675 return;
10676
10677 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10678 if (!hdr) {
10679 nlmsg_free(msg);
10680 return;
10681 }
10682
9360ffd1 10683 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10684 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10685 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10686 (ie_len && ie &&
10687 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10688 goto nla_put_failure;
c93b5e71 10689
3b7b72ee 10690 genlmsg_end(msg, hdr);
c93b5e71 10691
68eb5503 10692 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10693 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10694 return;
10695
10696 nla_put_failure:
10697 genlmsg_cancel(msg, hdr);
10698 nlmsg_free(msg);
10699}
947add36 10700EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10701
a3b8b056
JM		 10702void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10703 struct net_device *netdev, const u8 *addr,
10704 enum nl80211_key_type key_type, int key_id,
e6d6e342 10705 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10706{
10707 struct sk_buff *msg;
10708 void *hdr;
10709
e6d6e342 10710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10711 if (!msg)
10712 return;
10713
10714 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10715 if (!hdr) {
10716 nlmsg_free(msg);
10717 return;
10718 }
10719
9360ffd1
DM		 10720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10721 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10722 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10723 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10724 (key_id != -1 &&
10725 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10726 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10727 goto nla_put_failure;
a3b8b056 10728
3b7b72ee 10729 genlmsg_end(msg, hdr);
a3b8b056 10730
68eb5503 10731 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10732 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10733 return;
10734
10735 nla_put_failure:
10736 genlmsg_cancel(msg, hdr);
10737 nlmsg_free(msg);
10738}
10739
6bad8766
LR		 10740void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10741 struct ieee80211_channel *channel_before,
10742 struct ieee80211_channel *channel_after)
10743{
10744 struct sk_buff *msg;
10745 void *hdr;
10746 struct nlattr *nl_freq;
10747
fd2120ca 10748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10749 if (!msg)
10750 return;
10751
10752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10753 if (!hdr) {
10754 nlmsg_free(msg);
10755 return;
10756 }
10757
10758 /*
10759 * Since we are applying the beacon hint to a wiphy we know its
10760 * wiphy_idx is valid
10761 */
9360ffd1
DM		 10762 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10763 goto nla_put_failure;
6bad8766
LR		 10764
10765 /* Before */
10766 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10767 if (!nl_freq)
10768 goto nla_put_failure;
cdc89b97 10769 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10770 goto nla_put_failure;
10771 nla_nest_end(msg, nl_freq);
10772
10773 /* After */
10774 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10775 if (!nl_freq)
10776 goto nla_put_failure;
cdc89b97 10777 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10778 goto nla_put_failure;
10779 nla_nest_end(msg, nl_freq);
10780
3b7b72ee 10781 genlmsg_end(msg, hdr);
6bad8766 10782
463d0183 10783 rcu_read_lock();
68eb5503 10784 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10785 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10786 rcu_read_unlock();
6bad8766
LR		 10787
10788 return;
10789
10790nla_put_failure:
10791 genlmsg_cancel(msg, hdr);
10792 nlmsg_free(msg);
10793}
10794
9588bbd5
JM		 10795static void nl80211_send_remain_on_chan_event(
10796 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10797 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10798 struct ieee80211_channel *chan,
9588bbd5
JM		 10799 unsigned int duration, gfp_t gfp)
10800{
10801 struct sk_buff *msg;
10802 void *hdr;
10803
10804 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10805 if (!msg)
10806 return;
10807
10808 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10809 if (!hdr) {
10810 nlmsg_free(msg);
10811 return;
10812 }
10813
9360ffd1 10814 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10815 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10816 wdev->netdev->ifindex)) ||
00f53350 10817 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10818 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10819 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10820 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10821 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10822 goto nla_put_failure;
9588bbd5 10823
9360ffd1
DM		 10824 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10825 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10826 goto nla_put_failure;
9588bbd5 10827
3b7b72ee 10828 genlmsg_end(msg, hdr);
9588bbd5 10829
68eb5503 10830 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10831 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10832 return;
10833
10834 nla_put_failure:
10835 genlmsg_cancel(msg, hdr);
10836 nlmsg_free(msg);
10837}
10838
947add36
JB		 10839void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10840 struct ieee80211_channel *chan,
10841 unsigned int duration, gfp_t gfp)
9588bbd5 10842{
947add36 10843 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10844 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10845
10846 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10847 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10848 rdev, wdev, cookie, chan,
42d97a59 10849 duration, gfp);
9588bbd5 10850}
947add36 10851EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10852
947add36
JB		 10853void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10854 struct ieee80211_channel *chan,
10855 gfp_t gfp)
9588bbd5 10856{
947add36 10857 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10858 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10859
10860 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10861 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10862 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10863}
947add36 10864EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10865
947add36
JB		 10866void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10867 struct station_info *sinfo, gfp_t gfp)
98b62183 10868{
947add36 10869 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10870 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10871 struct sk_buff *msg;
10872
947add36
JB		 10873 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10874
58050fce 10875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10876 if (!msg)
10877 return;
10878
66266b3a
JL		 10879 if (nl80211_send_station(msg, 0, 0, 0,
10880 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10881 nlmsg_free(msg);
10882 return;
10883 }
10884
68eb5503 10885 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10886 NL80211_MCGRP_MLME, gfp);
98b62183 10887}
947add36 10888EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10889
947add36 10890void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10891{
947add36 10892 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10893 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10894 struct sk_buff *msg;
10895 void *hdr;
10896
947add36
JB		 10897 trace_cfg80211_del_sta(dev, mac_addr);
10898
58050fce 10899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10900 if (!msg)
10901 return;
10902
10903 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10904 if (!hdr) {
10905 nlmsg_free(msg);
10906 return;
10907 }
10908
9360ffd1
DM		 10909 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10910 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10911 goto nla_put_failure;
ec15e68b 10912
3b7b72ee 10913 genlmsg_end(msg, hdr);
ec15e68b 10914
68eb5503 10915 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10916 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10917 return;
10918
10919 nla_put_failure:
10920 genlmsg_cancel(msg, hdr);
10921 nlmsg_free(msg);
10922}
947add36 10923EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10924
947add36
JB		 10925void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10926 enum nl80211_connect_failed_reason reason,
10927 gfp_t gfp)
ed44a951 10928{
947add36 10929 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10930 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10931 struct sk_buff *msg;
10932 void *hdr;
10933
10934 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10935 if (!msg)
10936 return;
10937
10938 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10939 if (!hdr) {
10940 nlmsg_free(msg);
10941 return;
10942 }
10943
10944 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10945 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10946 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10947 goto nla_put_failure;
10948
10949 genlmsg_end(msg, hdr);
10950
68eb5503 10951 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10952 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10953 return;
10954
10955 nla_put_failure:
10956 genlmsg_cancel(msg, hdr);
10957 nlmsg_free(msg);
10958}
947add36 10959EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10960
b92ab5d8
JB		 10961static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10962 const u8 *addr, gfp_t gfp)
28946da7
JB		 10963{
10964 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10965 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10966 struct sk_buff *msg;
10967 void *hdr;
15e47304 10968 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10969
15e47304 10970 if (!nlportid)
28946da7
JB		 10971 return false;
10972
10973 msg = nlmsg_new(100, gfp);
10974 if (!msg)
10975 return true;
10976
b92ab5d8 10977 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10978 if (!hdr) {
10979 nlmsg_free(msg);
10980 return true;
10981 }
10982
9360ffd1
DM		 10983 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10984 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10985 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10986 goto nla_put_failure;
28946da7 10987
9c90a9f6 10988 genlmsg_end(msg, hdr);
15e47304 10989 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10990 return true;
10991
10992 nla_put_failure:
10993 genlmsg_cancel(msg, hdr);
10994 nlmsg_free(msg);
10995 return true;
10996}
10997
947add36
JB		 10998bool cfg80211_rx_spurious_frame(struct net_device *dev,
10999 const u8 *addr, gfp_t gfp)
b92ab5d8 11000{
947add36
JB		 11001 struct wireless_dev *wdev = dev->ieee80211_ptr;
11002 bool ret;
11003
11004 trace_cfg80211_rx_spurious_frame(dev, addr);
11005
11006 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11007 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11008 trace_cfg80211_return_bool(false);
11009 return false;
11010 }
11011 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11012 addr, gfp);
11013 trace_cfg80211_return_bool(ret);
11014 return ret;
b92ab5d8 11015}
947add36 11016EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11017
947add36
JB		 11018bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11019 const u8 *addr, gfp_t gfp)
b92ab5d8 11020{
947add36
JB		 11021 struct wireless_dev *wdev = dev->ieee80211_ptr;
11022 bool ret;
11023
11024 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11025
11026 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11027 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11028 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11029 trace_cfg80211_return_bool(false);
11030 return false;
11031 }
11032 ret = __nl80211_unexpected_frame(dev,
11033 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11034 addr, gfp);
11035 trace_cfg80211_return_bool(ret);
11036 return ret;
b92ab5d8 11037}
947add36 11038EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11039
2e161f78 11040int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11041 struct wireless_dev *wdev, u32 nlportid,
804483e9 11042 int freq, int sig_dbm,
19504cf5 11043 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11044{
71bbc994 11045 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11046 struct sk_buff *msg;
11047 void *hdr;
026331c4
JM		 11048
11049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11050 if (!msg)
11051 return -ENOMEM;
11052
2e161f78 11053 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11054 if (!hdr) {
11055 nlmsg_free(msg);
11056 return -ENOMEM;
11057 }
11058
9360ffd1 11059 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11060 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11061 netdev->ifindex)) ||
a838490b 11062 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11063 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11064 (sig_dbm &&
11065 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11066 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11067 (flags &&
11068 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11069 goto nla_put_failure;
026331c4 11070
3b7b72ee 11071 genlmsg_end(msg, hdr);
026331c4 11072
15e47304 11073 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11074
11075 nla_put_failure:
11076 genlmsg_cancel(msg, hdr);
11077 nlmsg_free(msg);
11078 return -ENOBUFS;
11079}
11080
947add36
JB		 11081void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11082 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11083{
947add36 11084 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11085 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11086 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11087 struct sk_buff *msg;
11088 void *hdr;
11089
947add36
JB		 11090 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11091
026331c4
JM		 11092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11093 if (!msg)
11094 return;
11095
2e161f78 11096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11097 if (!hdr) {
11098 nlmsg_free(msg);
11099 return;
11100 }
11101
9360ffd1 11102 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11103 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11104 netdev->ifindex)) ||
a838490b 11105 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11106 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11107 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11108 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11109 goto nla_put_failure;
026331c4 11110
3b7b72ee 11111 genlmsg_end(msg, hdr);
026331c4 11112
68eb5503 11113 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11114 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11115 return;
11116
11117 nla_put_failure:
11118 genlmsg_cancel(msg, hdr);
11119 nlmsg_free(msg);
11120}
947add36 11121EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11122
947add36
JB		 11123void cfg80211_cqm_rssi_notify(struct net_device *dev,
11124 enum nl80211_cqm_rssi_threshold_event rssi_event,
11125 gfp_t gfp)
d6dc1a38 11126{
947add36
JB		 11127 struct wireless_dev *wdev = dev->ieee80211_ptr;
11128 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11129 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11130 struct sk_buff *msg;
11131 struct nlattr *pinfoattr;
11132 void *hdr;
11133
947add36
JB		 11134 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11135
58050fce 11136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11137 if (!msg)
11138 return;
11139
11140 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11141 if (!hdr) {
11142 nlmsg_free(msg);
11143 return;
11144 }
11145
9360ffd1 11146 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11147 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11148 goto nla_put_failure;
d6dc1a38
JO		 11149
11150 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11151 if (!pinfoattr)
11152 goto nla_put_failure;
11153
9360ffd1
DM		 11154 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11155 rssi_event))
11156 goto nla_put_failure;
d6dc1a38
JO		 11157
11158 nla_nest_end(msg, pinfoattr);
11159
3b7b72ee 11160 genlmsg_end(msg, hdr);
d6dc1a38 11161
68eb5503 11162 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11163 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11164 return;
11165
11166 nla_put_failure:
11167 genlmsg_cancel(msg, hdr);
11168 nlmsg_free(msg);
11169}
947add36 11170EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11171
947add36
JB		 11172static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11173 struct net_device *netdev, const u8 *bssid,
11174 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11175{
11176 struct sk_buff *msg;
11177 struct nlattr *rekey_attr;
11178 void *hdr;
11179
58050fce 11180 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11181 if (!msg)
11182 return;
11183
11184 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11185 if (!hdr) {
11186 nlmsg_free(msg);
11187 return;
11188 }
11189
9360ffd1
DM		 11190 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11191 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11192 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11193 goto nla_put_failure;
e5497d76
JB		 11194
11195 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11196 if (!rekey_attr)
11197 goto nla_put_failure;
11198
9360ffd1
DM		 11199 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11200 NL80211_REPLAY_CTR_LEN, replay_ctr))
11201 goto nla_put_failure;
e5497d76
JB		 11202
11203 nla_nest_end(msg, rekey_attr);
11204
3b7b72ee 11205 genlmsg_end(msg, hdr);
e5497d76 11206
68eb5503 11207 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11208 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11209 return;
11210
11211 nla_put_failure:
11212 genlmsg_cancel(msg, hdr);
11213 nlmsg_free(msg);
11214}
11215
947add36
JB		 11216void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11217 const u8 *replay_ctr, gfp_t gfp)
11218{
11219 struct wireless_dev *wdev = dev->ieee80211_ptr;
11220 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11221 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11222
11223 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11224 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11225}
11226EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11227
11228static void
11229nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11230 struct net_device *netdev, int index,
11231 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11232{
11233 struct sk_buff *msg;
11234 struct nlattr *attr;
11235 void *hdr;
11236
58050fce 11237 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11238 if (!msg)
11239 return;
11240
11241 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11242 if (!hdr) {
11243 nlmsg_free(msg);
11244 return;
11245 }
11246
9360ffd1
DM		 11247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11248 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11249 goto nla_put_failure;
c9df56b4
JM		 11250
11251 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11252 if (!attr)
11253 goto nla_put_failure;
11254
9360ffd1
DM		 11255 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11256 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11257 (preauth &&
11258 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11259 goto nla_put_failure;
c9df56b4
JM		 11260
11261 nla_nest_end(msg, attr);
11262
3b7b72ee 11263 genlmsg_end(msg, hdr);
c9df56b4 11264
68eb5503 11265 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11266 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11267 return;
11268
11269 nla_put_failure:
11270 genlmsg_cancel(msg, hdr);
11271 nlmsg_free(msg);
11272}
11273
947add36
JB		 11274void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11275 const u8 *bssid, bool preauth, gfp_t gfp)
11276{
11277 struct wireless_dev *wdev = dev->ieee80211_ptr;
11278 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11279 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11280
11281 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11282 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11283}
11284EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11285
11286static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11287 struct net_device *netdev,
11288 struct cfg80211_chan_def *chandef,
11289 gfp_t gfp)
5314526b
TP		 11290{
11291 struct sk_buff *msg;
11292 void *hdr;
11293
58050fce 11294 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11295 if (!msg)
11296 return;
11297
11298 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11299 if (!hdr) {
11300 nlmsg_free(msg);
11301 return;
11302 }
11303
683b6d3b
JB		 11304 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11305 goto nla_put_failure;
11306
11307 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11308 goto nla_put_failure;
5314526b
TP		 11309
11310 genlmsg_end(msg, hdr);
11311
68eb5503 11312 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11313 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11314 return;
11315
11316 nla_put_failure:
11317 genlmsg_cancel(msg, hdr);
11318 nlmsg_free(msg);
11319}
11320
947add36
JB		 11321void cfg80211_ch_switch_notify(struct net_device *dev,
11322 struct cfg80211_chan_def *chandef)
84f10708 11323{
947add36
JB		 11324 struct wireless_dev *wdev = dev->ieee80211_ptr;
11325 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11326 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11327
e487eaeb 11328 ASSERT_WDEV_LOCK(wdev);
947add36 11329
e487eaeb 11330 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11331
11332 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11333 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11334 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11335 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11336 return;
947add36 11337
9e0e2961 11338 wdev->chandef = *chandef;
96f55f12 11339 wdev->preset_chandef = *chandef;
947add36 11340 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11341}
11342EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11343
11344void cfg80211_cqm_txe_notify(struct net_device *dev,
11345 const u8 *peer, u32 num_packets,
11346 u32 rate, u32 intvl, gfp_t gfp)
11347{
11348 struct wireless_dev *wdev = dev->ieee80211_ptr;
11349 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11350 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11351 struct sk_buff *msg;
11352 struct nlattr *pinfoattr;
11353 void *hdr;
11354
11355 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11356 if (!msg)
11357 return;
11358
11359 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11360 if (!hdr) {
11361 nlmsg_free(msg);
11362 return;
11363 }
11364
11365 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11366 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11367 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11368 goto nla_put_failure;
11369
11370 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11371 if (!pinfoattr)
11372 goto nla_put_failure;
11373
11374 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11375 goto nla_put_failure;
11376
11377 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11378 goto nla_put_failure;
11379
11380 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11381 goto nla_put_failure;
11382
11383 nla_nest_end(msg, pinfoattr);
11384
11385 genlmsg_end(msg, hdr);
11386
68eb5503 11387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11388 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11389 return;
11390
11391 nla_put_failure:
11392 genlmsg_cancel(msg, hdr);
11393 nlmsg_free(msg);
11394}
947add36 11395EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11396
04f39047
SW		 11397void
11398nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11399 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11400 enum nl80211_radar_event event,
11401 struct net_device *netdev, gfp_t gfp)
11402{
11403 struct sk_buff *msg;
11404 void *hdr;
11405
11406 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11407 if (!msg)
11408 return;
11409
11410 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11411 if (!hdr) {
11412 nlmsg_free(msg);
11413 return;
11414 }
11415
11416 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11417 goto nla_put_failure;
11418
11419 /* NOP and radar events don't need a netdev parameter */
11420 if (netdev) {
11421 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11422
11423 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11424 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11425 goto nla_put_failure;
11426 }
11427
11428 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11429 goto nla_put_failure;
11430
11431 if (nl80211_send_chandef(msg, chandef))
11432 goto nla_put_failure;
11433
9c90a9f6 11434 genlmsg_end(msg, hdr);
04f39047 11435
68eb5503 11436 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11437 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11438 return;
11439
11440 nla_put_failure:
11441 genlmsg_cancel(msg, hdr);
11442 nlmsg_free(msg);
11443}
11444
947add36
JB		 11445void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11446 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11447{
947add36
JB		 11448 struct wireless_dev *wdev = dev->ieee80211_ptr;
11449 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11450 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11451 struct sk_buff *msg;
11452 struct nlattr *pinfoattr;
11453 void *hdr;
11454
947add36
JB		 11455 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11456
58050fce 11457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11458 if (!msg)
11459 return;
11460
11461 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11462 if (!hdr) {
11463 nlmsg_free(msg);
11464 return;
11465 }
11466
9360ffd1 11467 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11468 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11469 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11470 goto nla_put_failure;
c063dbf5
JB		 11471
11472 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11473 if (!pinfoattr)
11474 goto nla_put_failure;
11475
9360ffd1
DM		 11476 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11477 goto nla_put_failure;
c063dbf5
JB		 11478
11479 nla_nest_end(msg, pinfoattr);
11480
3b7b72ee 11481 genlmsg_end(msg, hdr);
c063dbf5 11482
68eb5503 11483 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11484 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11485 return;
11486
11487 nla_put_failure:
11488 genlmsg_cancel(msg, hdr);
11489 nlmsg_free(msg);
11490}
947add36 11491EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11492
7f6cf311
JB		 11493void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11494 u64 cookie, bool acked, gfp_t gfp)
11495{
11496 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11497 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11498 struct sk_buff *msg;
11499 void *hdr;
7f6cf311 11500
4ee3e063
BL		 11501 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11502
58050fce 11503 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11504
7f6cf311
JB		 11505 if (!msg)
11506 return;
11507
11508 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11509 if (!hdr) {
11510 nlmsg_free(msg);
11511 return;
11512 }
11513
9360ffd1
DM		 11514 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11515 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11516 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11517 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11518 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11519 goto nla_put_failure;
7f6cf311 11520
9c90a9f6 11521 genlmsg_end(msg, hdr);
7f6cf311 11522
68eb5503 11523 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11524 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11525 return;
11526
11527 nla_put_failure:
11528 genlmsg_cancel(msg, hdr);
11529 nlmsg_free(msg);
11530}
11531EXPORT_SYMBOL(cfg80211_probe_status);
11532
5e760230
JB		 11533void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11534 const u8 *frame, size_t len,
37c73b5f 11535 int freq, int sig_dbm)
5e760230 11536{
f26cbf40 11537 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11538 struct sk_buff *msg;
11539 void *hdr;
37c73b5f 11540 struct cfg80211_beacon_registration *reg;
5e760230 11541
4ee3e063
BL		 11542 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11543
37c73b5f
BG		 11544 spin_lock_bh(&rdev->beacon_registrations_lock);
11545 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11546 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11547 if (!msg) {
11548 spin_unlock_bh(&rdev->beacon_registrations_lock);
11549 return;
11550 }
5e760230 11551
37c73b5f
BG		 11552 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11553 if (!hdr)
11554 goto nla_put_failure;
5e760230 11555
37c73b5f
BG		 11556 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11557 (freq &&
11558 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11559 (sig_dbm &&
11560 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11561 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11562 goto nla_put_failure;
5e760230 11563
37c73b5f 11564 genlmsg_end(msg, hdr);
5e760230 11565
37c73b5f
BG		 11566 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11567 }
11568 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11569 return;
11570
11571 nla_put_failure:
37c73b5f
BG		 11572 spin_unlock_bh(&rdev->beacon_registrations_lock);
11573 if (hdr)
11574 genlmsg_cancel(msg, hdr);
5e760230
JB		 11575 nlmsg_free(msg);
11576}
11577EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11578
cd8f7cb4
JB		 11579#ifdef CONFIG_PM
11580void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11581 struct cfg80211_wowlan_wakeup *wakeup,
11582 gfp_t gfp)
11583{
f26cbf40 11584 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11585 struct sk_buff *msg;
11586 void *hdr;
9c90a9f6 11587 int size = 200;
cd8f7cb4
JB		 11588
11589 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11590
11591 if (wakeup)
11592 size += wakeup->packet_present_len;
11593
11594 msg = nlmsg_new(size, gfp);
11595 if (!msg)
11596 return;
11597
11598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11599 if (!hdr)
11600 goto free_msg;
11601
11602 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11603 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11604 goto free_msg;
11605
11606 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11607 wdev->netdev->ifindex))
11608 goto free_msg;
11609
11610 if (wakeup) {
11611 struct nlattr *reasons;
11612
11613 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11614 if (!reasons)
11615 goto free_msg;
cd8f7cb4
JB		 11616
11617 if (wakeup->disconnect &&
11618 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11619 goto free_msg;
11620 if (wakeup->magic_pkt &&
11621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11622 goto free_msg;
11623 if (wakeup->gtk_rekey_failure &&
11624 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11625 goto free_msg;
11626 if (wakeup->eap_identity_req &&
11627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11628 goto free_msg;
11629 if (wakeup->four_way_handshake &&
11630 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11631 goto free_msg;
11632 if (wakeup->rfkill_release &&
11633 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11634 goto free_msg;
11635
11636 if (wakeup->pattern_idx >= 0 &&
11637 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11638 wakeup->pattern_idx))
11639 goto free_msg;
11640
ae917c9f
JB		 11641 if (wakeup->tcp_match &&
11642 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11643 goto free_msg;
2a0e047e 11644
ae917c9f
JB		 11645 if (wakeup->tcp_connlost &&
11646 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11647 goto free_msg;
2a0e047e 11648
ae917c9f
JB		 11649 if (wakeup->tcp_nomoretokens &&
11650 nla_put_flag(msg,
11651 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11652 goto free_msg;
2a0e047e 11653
cd8f7cb4
JB		 11654 if (wakeup->packet) {
11655 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11656 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11657
11658 if (!wakeup->packet_80211) {
11659 pkt_attr =
11660 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11661 len_attr =
11662 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11663 }
11664
11665 if (wakeup->packet_len &&
11666 nla_put_u32(msg, len_attr, wakeup->packet_len))
11667 goto free_msg;
11668
11669 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11670 wakeup->packet))
11671 goto free_msg;
11672 }
11673
11674 nla_nest_end(msg, reasons);
11675 }
11676
9c90a9f6 11677 genlmsg_end(msg, hdr);
cd8f7cb4 11678
68eb5503 11679 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11680 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11681 return;
11682
11683 free_msg:
11684 nlmsg_free(msg);
11685}
11686EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11687#endif
11688
3475b094
JM		 11689void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11690 enum nl80211_tdls_operation oper,
11691 u16 reason_code, gfp_t gfp)
11692{
11693 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11694 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11695 struct sk_buff *msg;
11696 void *hdr;
3475b094
JM		 11697
11698 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11699 reason_code);
11700
11701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11702 if (!msg)
11703 return;
11704
11705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11706 if (!hdr) {
11707 nlmsg_free(msg);
11708 return;
11709 }
11710
11711 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11712 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11713 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11714 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11715 (reason_code > 0 &&
11716 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11717 goto nla_put_failure;
11718
9c90a9f6 11719 genlmsg_end(msg, hdr);
3475b094 11720
68eb5503 11721 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11722 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11723 return;
11724
11725 nla_put_failure:
11726 genlmsg_cancel(msg, hdr);
11727 nlmsg_free(msg);
11728}
11729EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11730
026331c4
JM		 11731static int nl80211_netlink_notify(struct notifier_block * nb,
11732 unsigned long state,
11733 void *_notify)
11734{
11735 struct netlink_notify *notify = _notify;
11736 struct cfg80211_registered_device *rdev;
11737 struct wireless_dev *wdev;
37c73b5f 11738 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11739
11740 if (state != NETLINK_URELEASE)
11741 return NOTIFY_DONE;
11742
11743 rcu_read_lock();
11744
5e760230 11745 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11746 bool schedule_destroy_work = false;
11747
11748 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11749 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11750
78f22b6a
JB		 11751 if (wdev->owner_nlportid == notify->portid)
11752 schedule_destroy_work = true;
11753 }
11754
37c73b5f
BG		 11755 spin_lock_bh(&rdev->beacon_registrations_lock);
11756 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11757 list) {
11758 if (reg->nlportid == notify->portid) {
11759 list_del(&reg->list);
11760 kfree(reg);
11761 break;
11762 }
11763 }
11764 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11765
11766 if (schedule_destroy_work) {
11767 struct cfg80211_iface_destroy *destroy;
11768
11769 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11770 if (destroy) {
11771 destroy->nlportid = notify->portid;
11772 spin_lock(&rdev->destroy_list_lock);
11773 list_add(&destroy->list, &rdev->destroy_list);
11774 spin_unlock(&rdev->destroy_list_lock);
11775 schedule_work(&rdev->destroy_work);
11776 }
11777 }
5e760230 11778 }
026331c4
JM		 11779
11780 rcu_read_unlock();
11781
6784c7db 11782 return NOTIFY_OK;
026331c4
JM		 11783}
11784
11785static struct notifier_block nl80211_netlink_notifier = {
11786 .notifier_call = nl80211_netlink_notify,
11787};
11788
355199e0
JM		 11789void cfg80211_ft_event(struct net_device *netdev,
11790 struct cfg80211_ft_event_params *ft_event)
11791{
11792 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11793 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11794 struct sk_buff *msg;
11795 void *hdr;
355199e0
JM		 11796
11797 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11798
11799 if (!ft_event->target_ap)
11800 return;
11801
11802 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11803 if (!msg)
11804 return;
11805
11806 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11807 if (!hdr)
11808 goto out;
355199e0 11809
ae917c9f
JB		 11810 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11811 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11812 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11813 goto out;
355199e0 11814
ae917c9f
JB		 11815 if (ft_event->ies &&
11816 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11817 goto out;
11818 if (ft_event->ric_ies &&
11819 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11820 ft_event->ric_ies))
11821 goto out;
355199e0 11822
9c90a9f6 11823 genlmsg_end(msg, hdr);
355199e0 11824
68eb5503 11825 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11826 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11827 return;
11828 out:
11829 nlmsg_free(msg);
355199e0
JM		 11830}
11831EXPORT_SYMBOL(cfg80211_ft_event);
11832
5de17984
AS		 11833void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11834{
11835 struct cfg80211_registered_device *rdev;
11836 struct sk_buff *msg;
11837 void *hdr;
11838 u32 nlportid;
11839
f26cbf40 11840 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11841 if (!rdev->crit_proto_nlportid)
11842 return;
11843
11844 nlportid = rdev->crit_proto_nlportid;
11845 rdev->crit_proto_nlportid = 0;
11846
11847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11848 if (!msg)
11849 return;
11850
11851 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11852 if (!hdr)
11853 goto nla_put_failure;
11854
11855 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11856 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11857 goto nla_put_failure;
11858
11859 genlmsg_end(msg, hdr);
11860
11861 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11862 return;
11863
11864 nla_put_failure:
11865 if (hdr)
11866 genlmsg_cancel(msg, hdr);
11867 nlmsg_free(msg);
11868
11869}
11870EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11871
348baf0e
JB		 11872void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11873{
11874 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11875 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11876 struct sk_buff *msg;
11877 void *hdr;
11878
11879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11880 if (!msg)
11881 return;
11882
11883 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11884 if (!hdr)
11885 goto out;
11886
11887 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11888 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11889 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11890 goto out;
11891
11892 genlmsg_end(msg, hdr);
11893
11894 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11895 NL80211_MCGRP_MLME, GFP_KERNEL);
11896 return;
11897 out:
11898 nlmsg_free(msg);
11899}
11900
55682965
JB		 11901/* initialisation/exit functions */
11902
11903int nl80211_init(void)
11904{
0d63cbb5 11905 int err;
55682965 11906
2a94fe48
JB		 11907 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11908 nl80211_mcgrps);
55682965
JB		 11909 if (err)
11910 return err;
11911
026331c4
JM		 11912 err = netlink_register_notifier(&nl80211_netlink_notifier);
11913 if (err)
11914 goto err_out;
11915
55682965
JB		 11916 return 0;
11917 err_out:
11918 genl_unregister_family(&nl80211_fam);
11919 return err;
11920}
11921
11922void nl80211_exit(void)
11923{
026331c4 11924 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11925 genl_unregister_family(&nl80211_fam);
11926}
Linux 6.x block layer and io_uring tree(s)