]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-zesty-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
cfg80211: export expected throughput through get_station()
[mirror_ubuntu-zesty-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
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,
3713b4e3 1229 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1230 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1231{
1232 void *hdr;
1233 struct nlattr *nl_bands, *nl_band;
1234 struct nlattr *nl_freqs, *nl_freq;
1235 struct nlattr *nl_cmds;
1236 enum ieee80211_band band;
1237 struct ieee80211_channel *chan;
1238 int i;
1239 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1240 rdev->wiphy.mgmt_stypes;
fe1abafd 1241 u32 features;
ee688b00 1242
3713b4e3
JB		 1243 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1244 if (!hdr)
1245 return -ENOBUFS;
ee688b00 1246
86e8cf98
JB		 1247 if (WARN_ON(!state))
1248 return -EINVAL;
ee688b00 1249
1b8ec87a 1250 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1251 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1252 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1253 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1254 cfg80211_rdev_list_generation))
8fdc621d
JB		 1255 goto nla_put_failure;
1256
86e8cf98 1257 switch (state->split_start) {
3713b4e3
JB		 1258 case 0:
1259 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1260 rdev->wiphy.retry_short) ||
3713b4e3 1261 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1262 rdev->wiphy.retry_long) ||
3713b4e3 1263 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1264 rdev->wiphy.frag_threshold) ||
3713b4e3 1265 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1266 rdev->wiphy.rts_threshold) ||
3713b4e3 1267 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1268 rdev->wiphy.coverage_class) ||
3713b4e3 1269 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1270 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1271 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1272 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1273 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1274 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1275 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1276 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1277 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1278 rdev->wiphy.max_match_sets))
9360ffd1 1279 goto nla_put_failure;
3713b4e3 1280
1b8ec87a 1281 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1282 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1283 goto nla_put_failure;
1b8ec87a 1284 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1285 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1286 goto nla_put_failure;
1b8ec87a 1287 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1288 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1289 goto nla_put_failure;
1b8ec87a 1290 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1291 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1292 goto nla_put_failure;
1b8ec87a 1293 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1294 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1295 goto nla_put_failure;
1b8ec87a 1296 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1297 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1298 goto nla_put_failure;
86e8cf98
JB		 1299 state->split_start++;
1300 if (state->split)
3713b4e3
JB		 1301 break;
1302 case 1:
1303 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1304 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1305 rdev->wiphy.cipher_suites))
3713b4e3 1306 goto nla_put_failure;
4745fc09 1307
3713b4e3 1308 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1309 rdev->wiphy.max_num_pmkids))
3713b4e3 1310 goto nla_put_failure;
b23aa676 1311
1b8ec87a 1312 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1313 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1314 goto nla_put_failure;
b23aa676 1315
3713b4e3 1316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1317 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1318 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1319 rdev->wiphy.available_antennas_rx))
9360ffd1 1320 goto nla_put_failure;
b23aa676 1321
1b8ec87a 1322 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1323 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1324 rdev->wiphy.probe_resp_offload))
3713b4e3 1325 goto nla_put_failure;
8fdc621d 1326
1b8ec87a
ZG		 1327 if ((rdev->wiphy.available_antennas_tx ||
1328 rdev->wiphy.available_antennas_rx) &&
1329 rdev->ops->get_antenna) {
3713b4e3
JB		 1330 u32 tx_ant = 0, rx_ant = 0;
1331 int res;
1b8ec87a 1332 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1333 if (!res) {
1334 if (nla_put_u32(msg,
1335 NL80211_ATTR_WIPHY_ANTENNA_TX,
1336 tx_ant) ||
1337 nla_put_u32(msg,
1338 NL80211_ATTR_WIPHY_ANTENNA_RX,
1339 rx_ant))
1340 goto nla_put_failure;
1341 }
1342 }
a293911d 1343
86e8cf98
JB		 1344 state->split_start++;
1345 if (state->split)
3713b4e3
JB		 1346 break;
1347 case 2:
1348 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1349 rdev->wiphy.interface_modes))
3713b4e3 1350 goto nla_put_failure;
86e8cf98
JB		 1351 state->split_start++;
1352 if (state->split)
3713b4e3
JB		 1353 break;
1354 case 3:
1355 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1356 if (!nl_bands)
1357 goto nla_put_failure;
f7ca38df 1358
86e8cf98
JB		 1359 for (band = state->band_start;
1360 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1361 struct ieee80211_supported_band *sband;
2e161f78 1362
1b8ec87a 1363 sband = rdev->wiphy.bands[band];
2e161f78 1364
3713b4e3
JB		 1365 if (!sband)
1366 continue;
1367
1368 nl_band = nla_nest_start(msg, band);
1369 if (!nl_band)
2e161f78 1370 goto nla_put_failure;
3713b4e3 1371
86e8cf98 1372 switch (state->chan_start) {
3713b4e3
JB		 1373 case 0:
1374 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1375 goto nla_put_failure;
86e8cf98
JB		 1376 state->chan_start++;
1377 if (state->split)
3713b4e3
JB		 1378 break;
1379 default:
1380 /* add frequencies */
1381 nl_freqs = nla_nest_start(
1382 msg, NL80211_BAND_ATTR_FREQS);
1383 if (!nl_freqs)
1384 goto nla_put_failure;
1385
86e8cf98 1386 for (i = state->chan_start - 1;
3713b4e3
JB		 1387 i < sband->n_channels;
1388 i++) {
1389 nl_freq = nla_nest_start(msg, i);
1390 if (!nl_freq)
1391 goto nla_put_failure;
1392
1393 chan = &sband->channels[i];
1394
86e8cf98
JB		 1395 if (nl80211_msg_put_channel(
1396 msg, chan,
1397 state->split))
3713b4e3
JB		 1398 goto nla_put_failure;
1399
1400 nla_nest_end(msg, nl_freq);
86e8cf98 1401 if (state->split)
3713b4e3
JB		 1402 break;
1403 }
1404 if (i < sband->n_channels)
86e8cf98 1405 state->chan_start = i + 2;
3713b4e3 1406 else
86e8cf98 1407 state->chan_start = 0;
3713b4e3
JB		 1408 nla_nest_end(msg, nl_freqs);
1409 }
1410
1411 nla_nest_end(msg, nl_band);
1412
86e8cf98 1413 if (state->split) {
3713b4e3 1414 /* start again here */
86e8cf98 1415 if (state->chan_start)
3713b4e3
JB		 1416 band--;
1417 break;
2e161f78 1418 }
2e161f78 1419 }
3713b4e3 1420 nla_nest_end(msg, nl_bands);
2e161f78 1421
3713b4e3 1422 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1423 state->band_start = band + 1;
3713b4e3 1424 else
86e8cf98 1425 state->band_start = 0;
74b70a4e 1426
3713b4e3 1427 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1428 if (state->band_start == 0 && state->chan_start == 0)
1429 state->split_start++;
1430 if (state->split)
3713b4e3
JB		 1431 break;
1432 case 4:
1433 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1434 if (!nl_cmds)
2e161f78
JB		 1435 goto nla_put_failure;
1436
3713b4e3
JB		 1437 i = 0;
1438#define CMD(op, n) \
1439 do { \
1b8ec87a 1440 if (rdev->ops->op) { \
3713b4e3
JB		 1441 i++; \
1442 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1443 goto nla_put_failure; \
1444 } \
1445 } while (0)
1446
1447 CMD(add_virtual_intf, NEW_INTERFACE);
1448 CMD(change_virtual_intf, SET_INTERFACE);
1449 CMD(add_key, NEW_KEY);
1450 CMD(start_ap, START_AP);
1451 CMD(add_station, NEW_STATION);
1452 CMD(add_mpath, NEW_MPATH);
1453 CMD(update_mesh_config, SET_MESH_CONFIG);
1454 CMD(change_bss, SET_BSS);
1455 CMD(auth, AUTHENTICATE);
1456 CMD(assoc, ASSOCIATE);
1457 CMD(deauth, DEAUTHENTICATE);
1458 CMD(disassoc, DISASSOCIATE);
1459 CMD(join_ibss, JOIN_IBSS);
1460 CMD(join_mesh, JOIN_MESH);
1461 CMD(set_pmksa, SET_PMKSA);
1462 CMD(del_pmksa, DEL_PMKSA);
1463 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1464 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1465 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1466 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1467 CMD(mgmt_tx, FRAME);
1468 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1469 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1470 i++;
1471 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1472 goto nla_put_failure;
2e161f78 1473 }
1b8ec87a
ZG		 1474 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1475 rdev->ops->join_mesh) {
3713b4e3
JB		 1476 i++;
1477 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1478 goto nla_put_failure;
1479 }
1480 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1481 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1482 CMD(tdls_mgmt, TDLS_MGMT);
1483 CMD(tdls_oper, TDLS_OPER);
1484 }
1b8ec87a 1485 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1486 CMD(sched_scan_start, START_SCHED_SCAN);
1487 CMD(probe_client, PROBE_CLIENT);
1488 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1489 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1490 i++;
1491 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1492 goto nla_put_failure;
1493 }
1494 CMD(start_p2p_device, START_P2P_DEVICE);
1495 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1496 if (state->split) {
5de17984
AS		 1497 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1498 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1499 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1500 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1501 }
fa9ffc74 1502 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1503
3713b4e3
JB		 1504#ifdef CONFIG_NL80211_TESTMODE
1505 CMD(testmode_cmd, TESTMODE);
1506#endif
ff1b6e69 1507
3713b4e3 1508#undef CMD
ff1b6e69 1509
1b8ec87a 1510 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1511 i++;
1512 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1513 goto nla_put_failure;
ff1b6e69
JB		 1514 }
1515
1b8ec87a 1516 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1517 i++;
1518 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1519 goto nla_put_failure;
1520 }
1521
1522 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1523 state->split_start++;
1524 if (state->split)
3713b4e3
JB		 1525 break;
1526 case 5:
1b8ec87a
ZG		 1527 if (rdev->ops->remain_on_channel &&
1528 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1529 nla_put_u32(msg,
1530 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1531 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1532 goto nla_put_failure;
1533
1b8ec87a 1534 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1535 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1536 goto nla_put_failure;
1537
1538 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1539 goto nla_put_failure;
86e8cf98
JB		 1540 state->split_start++;
1541 if (state->split)
3713b4e3
JB		 1542 break;
1543 case 6:
1544#ifdef CONFIG_PM
1b8ec87a 1545 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1546 goto nla_put_failure;
86e8cf98
JB		 1547 state->split_start++;
1548 if (state->split)
3713b4e3
JB		 1549 break;
1550#else
86e8cf98 1551 state->split_start++;
dfb89c56 1552#endif
3713b4e3
JB		 1553 case 7:
1554 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1555 rdev->wiphy.software_iftypes))
3713b4e3 1556 goto nla_put_failure;
ff1b6e69 1557
1b8ec87a 1558 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1559 state->split))
3713b4e3 1560 goto nla_put_failure;
7527a782 1561
86e8cf98
JB		 1562 state->split_start++;
1563 if (state->split)
3713b4e3
JB		 1564 break;
1565 case 8:
1b8ec87a 1566 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1567 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1568 rdev->wiphy.ap_sme_capa))
3713b4e3 1569 goto nla_put_failure;
7527a782 1570
1b8ec87a 1571 features = rdev->wiphy.features;
fe1abafd
JB		 1572 /*
1573 * We can only add the per-channel limit information if the
1574 * dump is split, otherwise it makes it too big. Therefore
1575 * only advertise it in that case.
1576 */
86e8cf98 1577 if (state->split)
fe1abafd
JB		 1578 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1579 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1580 goto nla_put_failure;
562a7480 1581
1b8ec87a 1582 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1583 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1584 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1585 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1586 goto nla_put_failure;
1f074bd8 1587
1b8ec87a
ZG		 1588 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1589 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1590 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1591 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1592 goto nla_put_failure;
7e7c8926 1593
3713b4e3
JB		 1594 /*
1595 * Any information below this point is only available to
1596 * applications that can deal with it being split. This
1597 * helps ensure that newly added capabilities don't break
1598 * older tools by overrunning their buffers.
1599 *
1600 * We still increment split_start so that in the split
1601 * case we'll continue with more data in the next round,
1602 * but break unconditionally so unsplit data stops here.
1603 */
86e8cf98 1604 state->split_start++;
3713b4e3
JB		 1605 break;
1606 case 9:
1b8ec87a 1607 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1608 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1609 rdev->wiphy.extended_capabilities_len,
1610 rdev->wiphy.extended_capabilities) ||
fe1abafd 1611 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1612 rdev->wiphy.extended_capabilities_len,
1613 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1614 goto nla_put_failure;
a50df0c4 1615
1b8ec87a 1616 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1617 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1618 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1619 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1620 goto nla_put_failure;
1621
be29b99a
AK		 1622 state->split_start++;
1623 break;
1624 case 10:
1b8ec87a 1625 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1626 goto nla_put_failure;
1627
1b8ec87a 1628 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1629 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1630 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1631 goto nla_put_failure;
b43504cf 1632
1b8ec87a 1633 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1634 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1635 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1636 goto nla_put_failure;
1637
ad7e718c
JB		 1638 state->split_start++;
1639 break;
1640 case 11:
1b8ec87a 1641 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1642 const struct nl80211_vendor_cmd_info *info;
1643 struct nlattr *nested;
1644
1645 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1646 if (!nested)
1647 goto nla_put_failure;
1648
1b8ec87a
ZG		 1649 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1650 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1651 if (nla_put(msg, i + 1, sizeof(*info), info))
1652 goto nla_put_failure;
1653 }
1654 nla_nest_end(msg, nested);
1655 }
1656
1b8ec87a 1657 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1658 const struct nl80211_vendor_cmd_info *info;
1659 struct nlattr *nested;
ad7e718c 1660
567ffc35
JB		 1661 nested = nla_nest_start(msg,
1662 NL80211_ATTR_VENDOR_EVENTS);
1663 if (!nested)
ad7e718c 1664 goto nla_put_failure;
567ffc35 1665
1b8ec87a
ZG		 1666 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1667 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1668 if (nla_put(msg, i + 1, sizeof(*info), info))
1669 goto nla_put_failure;
1670 }
1671 nla_nest_end(msg, nested);
1672 }
9a774c78
AO		 1673 state->split_start++;
1674 break;
1675 case 12:
1676 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1677 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1678 rdev->wiphy.max_num_csa_counters))
1679 goto nla_put_failure;
01e0daa4 1680
3713b4e3 1681 /* done */
86e8cf98 1682 state->split_start = 0;
3713b4e3
JB		 1683 break;
1684 }
55682965
JB		 1685 return genlmsg_end(msg, hdr);
1686
1687 nla_put_failure:
bc3ed28c
TG		 1688 genlmsg_cancel(msg, hdr);
1689 return -EMSGSIZE;
55682965
JB		 1690}
1691
86e8cf98
JB		 1692static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1693 struct netlink_callback *cb,
1694 struct nl80211_dump_wiphy_state *state)
1695{
1696 struct nlattr **tb = nl80211_fam.attrbuf;
1697 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1698 tb, nl80211_fam.maxattr, nl80211_policy);
1699 /* ignore parse errors for backward compatibility */
1700 if (ret)
1701 return 0;
1702
1703 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1704 if (tb[NL80211_ATTR_WIPHY])
1705 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1706 if (tb[NL80211_ATTR_WDEV])
1707 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1708 if (tb[NL80211_ATTR_IFINDEX]) {
1709 struct net_device *netdev;
1710 struct cfg80211_registered_device *rdev;
1711 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1712
7f2b8562 1713 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1714 if (!netdev)
1715 return -ENODEV;
1716 if (netdev->ieee80211_ptr) {
f26cbf40 1717 rdev = wiphy_to_rdev(
86e8cf98
JB		 1718 netdev->ieee80211_ptr->wiphy);
1719 state->filter_wiphy = rdev->wiphy_idx;
1720 }
86e8cf98
JB		 1721 }
1722
1723 return 0;
1724}
1725
55682965
JB		 1726static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1727{
645e77de 1728 int idx = 0, ret;
86e8cf98 1729 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1730 struct cfg80211_registered_device *rdev;
3a5a423b 1731
5fe231e8 1732 rtnl_lock();
86e8cf98
JB		 1733 if (!state) {
1734 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1735 if (!state) {
1736 rtnl_unlock();
86e8cf98 1737 return -ENOMEM;
3713b4e3 1738 }
86e8cf98
JB		 1739 state->filter_wiphy = -1;
1740 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1741 if (ret) {
1742 kfree(state);
1743 rtnl_unlock();
1744 return ret;
3713b4e3 1745 }
86e8cf98 1746 cb->args[0] = (long)state;
3713b4e3
JB		 1747 }
1748
1b8ec87a
ZG		 1749 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1750 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1751 continue;
86e8cf98 1752 if (++idx <= state->start)
55682965 1753 continue;
86e8cf98 1754 if (state->filter_wiphy != -1 &&
1b8ec87a 1755 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1756 continue;
1757 /* attempt to fit multiple wiphy data chunks into the skb */
1758 do {
1b8ec87a 1759 ret = nl80211_send_wiphy(rdev, skb,
3713b4e3
JB		 1760 NETLINK_CB(cb->skb).portid,
1761 cb->nlh->nlmsg_seq,
86e8cf98 1762 NLM_F_MULTI, state);
3713b4e3
JB		 1763 if (ret < 0) {
1764 /*
1765 * If sending the wiphy data didn't fit (ENOBUFS
1766 * or EMSGSIZE returned), this SKB is still
1767 * empty (so it's not too big because another
1768 * wiphy dataset is already in the skb) and
1769 * we've not tried to adjust the dump allocation
1770 * yet ... then adjust the alloc size to be
1771 * bigger, and return 1 but with the empty skb.
1772 * This results in an empty message being RX'ed
1773 * in userspace, but that is ignored.
1774 *
1775 * We can then retry with the larger buffer.
1776 */
1777 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1778 !skb->len && !state->split &&
3713b4e3
JB		 1779 cb->min_dump_alloc < 4096) {
1780 cb->min_dump_alloc = 4096;
f12cb289 1781 state->split_start = 0;
d98cae64 1782 rtnl_unlock();
3713b4e3
JB		 1783 return 1;
1784 }
1785 idx--;
1786 break;
645e77de 1787 }
86e8cf98 1788 } while (state->split_start > 0);
3713b4e3 1789 break;
55682965 1790 }
5fe231e8 1791 rtnl_unlock();
55682965 1792
86e8cf98 1793 state->start = idx;
55682965
JB		 1794
1795 return skb->len;
1796}
1797
86e8cf98
JB		 1798static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1799{
1800 kfree((void *)cb->args[0]);
1801 return 0;
1802}
1803
55682965
JB		 1804static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1805{
1806 struct sk_buff *msg;
1b8ec87a 1807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1808 struct nl80211_dump_wiphy_state state = {};
55682965 1809
645e77de 1810 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1811 if (!msg)
4c476991 1812 return -ENOMEM;
55682965 1813
1b8ec87a 1814 if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1815 &state) < 0) {
4c476991
JB		 1816 nlmsg_free(msg);
1817 return -ENOBUFS;
1818 }
55682965 1819
134e6375 1820 return genlmsg_reply(msg, info);
55682965
JB		 1821}
1822
31888487
JM		 1823static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1824 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1825 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1826 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1827 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1828 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1829};
1830
1831static int parse_txq_params(struct nlattr *tb[],
1832 struct ieee80211_txq_params *txq_params)
1833{
a3304b0a 1834 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1835 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1836 !tb[NL80211_TXQ_ATTR_AIFS])
1837 return -EINVAL;
1838
a3304b0a 1839 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1840 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1841 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1842 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1843 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1844
a3304b0a
JB		 1845 if (txq_params->ac >= NL80211_NUM_ACS)
1846 return -EINVAL;
1847
31888487
JM		 1848 return 0;
1849}
1850
f444de05
JB		 1851static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1852{
1853 /*
cc1d2806
JB		 1854 * You can only set the channel explicitly for WDS interfaces,
1855 * all others have their channel managed via their respective
1856 * "establish a connection" command (connect, join, ...)
1857 *
1858 * For AP/GO and mesh mode, the channel can be set with the
1859 * channel userspace API, but is only stored and passed to the
1860 * low-level driver when the AP starts or the mesh is joined.
1861 * This is for backward compatibility, userspace can also give
1862 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1863 *
1864 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1865 * whatever else is going on, so they have their own special
1866 * operation to set the monitor channel if possible.
f444de05
JB		 1867 */
1868 return !wdev ||
1869 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1870 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1871 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1872 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1873}
1874
683b6d3b
JB		 1875static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1876 struct genl_info *info,
1877 struct cfg80211_chan_def *chandef)
1878{
dbeca2ea 1879 u32 control_freq;
683b6d3b
JB		 1880
1881 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1882 return -EINVAL;
1883
1884 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1885
1886 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1887 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1888 chandef->center_freq1 = control_freq;
1889 chandef->center_freq2 = 0;
683b6d3b
JB		 1890
1891 /* Primary channel not allowed */
1892 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1893 return -EINVAL;
1894
3d9d1d66
JB		 1895 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1896 enum nl80211_channel_type chantype;
1897
1898 chantype = nla_get_u32(
1899 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1900
1901 switch (chantype) {
1902 case NL80211_CHAN_NO_HT:
1903 case NL80211_CHAN_HT20:
1904 case NL80211_CHAN_HT40PLUS:
1905 case NL80211_CHAN_HT40MINUS:
1906 cfg80211_chandef_create(chandef, chandef->chan,
1907 chantype);
1908 break;
1909 default:
1910 return -EINVAL;
1911 }
1912 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1913 chandef->width =
1914 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1915 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1916 chandef->center_freq1 =
1917 nla_get_u32(
1918 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1919 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1920 chandef->center_freq2 =
1921 nla_get_u32(
1922 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1923 }
1924
9f5e8f6e 1925 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1926 return -EINVAL;
1927
9f5e8f6e
JB		 1928 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1929 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1930 return -EINVAL;
1931
2f301ab2
SW		 1932 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1933 chandef->width == NL80211_CHAN_WIDTH_10) &&
1934 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1935 return -EINVAL;
1936
683b6d3b
JB		 1937 return 0;
1938}
1939
f444de05 1940static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1941 struct net_device *dev,
f444de05
JB		 1942 struct genl_info *info)
1943{
683b6d3b 1944 struct cfg80211_chan_def chandef;
f444de05 1945 int result;
e8c9bd5b 1946 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1947 struct wireless_dev *wdev = NULL;
e8c9bd5b 1948
e16821bc
JM		 1949 if (dev)
1950 wdev = dev->ieee80211_ptr;
f444de05
JB		 1951 if (!nl80211_can_set_dev_channel(wdev))
1952 return -EOPNOTSUPP;
e16821bc
JM		 1953 if (wdev)
1954 iftype = wdev->iftype;
f444de05 1955
683b6d3b
JB		 1956 result = nl80211_parse_chandef(rdev, info, &chandef);
1957 if (result)
1958 return result;
f444de05 1959
e8c9bd5b 1960 switch (iftype) {
aa430da4
JB		 1961 case NL80211_IFTYPE_AP:
1962 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1963 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1964 result = -EINVAL;
1965 break;
1966 }
e16821bc
JM		 1967 if (wdev->beacon_interval) {
1968 if (!dev || !rdev->ops->set_ap_chanwidth ||
1969 !(rdev->wiphy.features &
1970 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1971 result = -EBUSY;
1972 break;
1973 }
1974
1975 /* Only allow dynamic channel width changes */
1976 if (chandef.chan != wdev->preset_chandef.chan) {
1977 result = -EBUSY;
1978 break;
1979 }
1980 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1981 if (result)
1982 break;
1983 }
683b6d3b 1984 wdev->preset_chandef = chandef;
aa430da4
JB		 1985 result = 0;
1986 break;
cc1d2806 1987 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1988 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1989 break;
e8c9bd5b 1990 case NL80211_IFTYPE_MONITOR:
683b6d3b 1991 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1992 break;
aa430da4 1993 default:
e8c9bd5b 1994 result = -EINVAL;
f444de05 1995 }
f444de05
JB		 1996
1997 return result;
1998}
1999
2000static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2001{
4c476991
JB		 2002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2003 struct net_device *netdev = info->user_ptr[1];
f444de05 2004
e16821bc 2005 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2006}
2007
e8347eba
BJ		 2008static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2009{
43b19952
JB		 2010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2011 struct net_device *dev = info->user_ptr[1];
2012 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2013 const u8 *bssid;
e8347eba
BJ		 2014
2015 if (!info->attrs[NL80211_ATTR_MAC])
2016 return -EINVAL;
2017
43b19952
JB		 2018 if (netif_running(dev))
2019 return -EBUSY;
e8347eba 2020
43b19952
JB		 2021 if (!rdev->ops->set_wds_peer)
2022 return -EOPNOTSUPP;
e8347eba 2023
43b19952
JB		 2024 if (wdev->iftype != NL80211_IFTYPE_WDS)
2025 return -EOPNOTSUPP;
e8347eba
BJ		 2026
2027 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2028 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2029}
2030
2031
55682965
JB		 2032static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2033{
2034 struct cfg80211_registered_device *rdev;
f444de05
JB		 2035 struct net_device *netdev = NULL;
2036 struct wireless_dev *wdev;
a1e567c8 2037 int result = 0, rem_txq_params = 0;
31888487 2038 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2039 u32 changed;
2040 u8 retry_short = 0, retry_long = 0;
2041 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2042 u8 coverage_class = 0;
55682965 2043
5fe231e8
JB		 2044 ASSERT_RTNL();
2045
f444de05
JB		 2046 /*
2047 * Try to find the wiphy and netdev. Normally this
2048 * function shouldn't need the netdev, but this is
2049 * done for backward compatibility -- previously
2050 * setting the channel was done per wiphy, but now
2051 * it is per netdev. Previous userland like hostapd
2052 * also passed a netdev to set_wiphy, so that it is
2053 * possible to let that go to the right netdev!
2054 */
4bbf4d56 2055
f444de05
JB		 2056 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2057 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2058
7f2b8562 2059 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2060 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2061 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2062 else
f444de05 2063 netdev = NULL;
4bbf4d56
JB		 2064 }
2065
f444de05 2066 if (!netdev) {
878d9ec7
JB		 2067 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2068 info->attrs);
5fe231e8 2069 if (IS_ERR(rdev))
4c476991 2070 return PTR_ERR(rdev);
f444de05
JB		 2071 wdev = NULL;
2072 netdev = NULL;
2073 result = 0;
71fe96bf 2074 } else
f444de05 2075 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2076
2077 /*
2078 * end workaround code, by now the rdev is available
2079 * and locked, and wdev may or may not be NULL.
2080 */
4bbf4d56
JB		 2081
2082 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2083 result = cfg80211_dev_rename(
2084 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2085
4bbf4d56 2086 if (result)
7f2b8562 2087 return result;
31888487
JM		 2088
2089 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2090 struct ieee80211_txq_params txq_params;
2091 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2092
7f2b8562
YX		 2093 if (!rdev->ops->set_txq_params)
2094 return -EOPNOTSUPP;
31888487 2095
7f2b8562
YX		 2096 if (!netdev)
2097 return -EINVAL;
f70f01c2 2098
133a3ff2 2099 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2100 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2101 return -EINVAL;
133a3ff2 2102
7f2b8562
YX		 2103 if (!netif_running(netdev))
2104 return -ENETDOWN;
2b5f8b0b 2105
31888487
JM		 2106 nla_for_each_nested(nl_txq_params,
2107 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2108 rem_txq_params) {
ae811e21
JB		 2109 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2110 nla_data(nl_txq_params),
2111 nla_len(nl_txq_params),
2112 txq_params_policy);
2113 if (result)
2114 return result;
31888487
JM		 2115 result = parse_txq_params(tb, &txq_params);
2116 if (result)
7f2b8562 2117 return result;
31888487 2118
e35e4d28
HG		 2119 result = rdev_set_txq_params(rdev, netdev,
2120 &txq_params);
31888487 2121 if (result)
7f2b8562 2122 return result;
31888487
JM		 2123 }
2124 }
55682965 2125
72bdcf34 2126 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2127 result = __nl80211_set_channel(
2128 rdev,
2129 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2130 info);
72bdcf34 2131 if (result)
7f2b8562 2132 return result;
72bdcf34
JM		 2133 }
2134
98d2ff8b 2135 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2136 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2137 enum nl80211_tx_power_setting type;
2138 int idx, mbm = 0;
2139
c8442118
JB		 2140 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2141 txp_wdev = NULL;
2142
7f2b8562
YX		 2143 if (!rdev->ops->set_tx_power)
2144 return -EOPNOTSUPP;
98d2ff8b
JO		 2145
2146 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2147 type = nla_get_u32(info->attrs[idx]);
2148
2149 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2150 (type != NL80211_TX_POWER_AUTOMATIC))
2151 return -EINVAL;
98d2ff8b
JO		 2152
2153 if (type != NL80211_TX_POWER_AUTOMATIC) {
2154 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2155 mbm = nla_get_u32(info->attrs[idx]);
2156 }
2157
c8442118 2158 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2159 if (result)
7f2b8562 2160 return result;
98d2ff8b
JO		 2161 }
2162
afe0cbf8
BR		 2163 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2164 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2165 u32 tx_ant, rx_ant;
7f531e03
BR		 2166 if ((!rdev->wiphy.available_antennas_tx &&
2167 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2168 !rdev->ops->set_antenna)
2169 return -EOPNOTSUPP;
afe0cbf8
BR		 2170
2171 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2172 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2173
a7ffac95 2174 /* reject antenna configurations which don't match the
7f531e03
BR		 2175 * available antenna masks, except for the "all" mask */
2176 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2177 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2178 return -EINVAL;
a7ffac95 2179
7f531e03
BR		 2180 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2181 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2182
e35e4d28 2183 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2184 if (result)
7f2b8562 2185 return result;
afe0cbf8
BR		 2186 }
2187
b9a5f8ca
JM		 2188 changed = 0;
2189
2190 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2191 retry_short = nla_get_u8(
2192 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2193 if (retry_short == 0)
2194 return -EINVAL;
2195
b9a5f8ca
JM		 2196 changed |= WIPHY_PARAM_RETRY_SHORT;
2197 }
2198
2199 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2200 retry_long = nla_get_u8(
2201 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2202 if (retry_long == 0)
2203 return -EINVAL;
2204
b9a5f8ca
JM		 2205 changed |= WIPHY_PARAM_RETRY_LONG;
2206 }
2207
2208 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2209 frag_threshold = nla_get_u32(
2210 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2211 if (frag_threshold < 256)
2212 return -EINVAL;
2213
b9a5f8ca
JM		 2214 if (frag_threshold != (u32) -1) {
2215 /*
2216 * Fragments (apart from the last one) are required to
2217 * have even length. Make the fragmentation code
2218 * simpler by stripping LSB should someone try to use
2219 * odd threshold value.
2220 */
2221 frag_threshold &= ~0x1;
2222 }
2223 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2224 }
2225
2226 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2227 rts_threshold = nla_get_u32(
2228 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2229 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2230 }
2231
81077e82
LT		 2232 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2233 coverage_class = nla_get_u8(
2234 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2235 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2236 }
2237
b9a5f8ca
JM		 2238 if (changed) {
2239 u8 old_retry_short, old_retry_long;
2240 u32 old_frag_threshold, old_rts_threshold;
81077e82 2241 u8 old_coverage_class;
b9a5f8ca 2242
7f2b8562
YX		 2243 if (!rdev->ops->set_wiphy_params)
2244 return -EOPNOTSUPP;
b9a5f8ca
JM		 2245
2246 old_retry_short = rdev->wiphy.retry_short;
2247 old_retry_long = rdev->wiphy.retry_long;
2248 old_frag_threshold = rdev->wiphy.frag_threshold;
2249 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2250 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2251
2252 if (changed & WIPHY_PARAM_RETRY_SHORT)
2253 rdev->wiphy.retry_short = retry_short;
2254 if (changed & WIPHY_PARAM_RETRY_LONG)
2255 rdev->wiphy.retry_long = retry_long;
2256 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2257 rdev->wiphy.frag_threshold = frag_threshold;
2258 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2259 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2260 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2261 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2262
e35e4d28 2263 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2264 if (result) {
2265 rdev->wiphy.retry_short = old_retry_short;
2266 rdev->wiphy.retry_long = old_retry_long;
2267 rdev->wiphy.frag_threshold = old_frag_threshold;
2268 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2269 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2270 }
2271 }
7f2b8562 2272 return 0;
55682965
JB		 2273}
2274
71bbc994
JB		 2275static inline u64 wdev_id(struct wireless_dev *wdev)
2276{
2277 return (u64)wdev->identifier |
f26cbf40 2278 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2279}
55682965 2280
683b6d3b 2281static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2282 const struct cfg80211_chan_def *chandef)
683b6d3b 2283{
9f5e8f6e 2284 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2285
683b6d3b
JB		 2286 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2287 chandef->chan->center_freq))
2288 return -ENOBUFS;
3d9d1d66
JB		 2289 switch (chandef->width) {
2290 case NL80211_CHAN_WIDTH_20_NOHT:
2291 case NL80211_CHAN_WIDTH_20:
2292 case NL80211_CHAN_WIDTH_40:
2293 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2294 cfg80211_get_chandef_type(chandef)))
2295 return -ENOBUFS;
2296 break;
2297 default:
2298 break;
2299 }
2300 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2301 return -ENOBUFS;
2302 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2303 return -ENOBUFS;
2304 if (chandef->center_freq2 &&
2305 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2306 return -ENOBUFS;
2307 return 0;
2308}
2309
15e47304 2310static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2311 struct cfg80211_registered_device *rdev,
72fb2abc 2312 struct wireless_dev *wdev)
55682965 2313{
72fb2abc 2314 struct net_device *dev = wdev->netdev;
55682965
JB		 2315 void *hdr;
2316
15e47304 2317 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2318 if (!hdr)
2319 return -1;
2320
72fb2abc
JB		 2321 if (dev &&
2322 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2323 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2324 goto nla_put_failure;
2325
2326 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2327 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2328 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2329 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2330 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2331 rdev->devlist_generation ^
2332 (cfg80211_rdev_list_generation << 2)))
2333 goto nla_put_failure;
f5ea9120 2334
5b7ccaf3 2335 if (rdev->ops->get_channel) {
683b6d3b
JB		 2336 int ret;
2337 struct cfg80211_chan_def chandef;
2338
2339 ret = rdev_get_channel(rdev, wdev, &chandef);
2340 if (ret == 0) {
2341 if (nl80211_send_chandef(msg, &chandef))
2342 goto nla_put_failure;
2343 }
d91df0e3
PF		 2344 }
2345
b84e7a05
AQ		 2346 if (wdev->ssid_len) {
2347 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2348 goto nla_put_failure;
2349 }
2350
55682965
JB		 2351 return genlmsg_end(msg, hdr);
2352
2353 nla_put_failure:
bc3ed28c
TG		 2354 genlmsg_cancel(msg, hdr);
2355 return -EMSGSIZE;
55682965
JB		 2356}
2357
2358static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2359{
2360 int wp_idx = 0;
2361 int if_idx = 0;
2362 int wp_start = cb->args[0];
2363 int if_start = cb->args[1];
f5ea9120 2364 struct cfg80211_registered_device *rdev;
55682965
JB		 2365 struct wireless_dev *wdev;
2366
5fe231e8 2367 rtnl_lock();
f5ea9120
JB		 2368 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2369 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2370 continue;
bba95fef
JB		 2371 if (wp_idx < wp_start) {
2372 wp_idx++;
55682965 2373 continue;
bba95fef 2374 }
55682965
JB		 2375 if_idx = 0;
2376
89a54e48 2377 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2378 if (if_idx < if_start) {
2379 if_idx++;
55682965 2380 continue;
bba95fef 2381 }
15e47304 2382 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2383 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2384 rdev, wdev) < 0) {
bba95fef
JB		 2385 goto out;
2386 }
2387 if_idx++;
55682965 2388 }
bba95fef
JB		 2389
2390 wp_idx++;
55682965 2391 }
bba95fef 2392 out:
5fe231e8 2393 rtnl_unlock();
55682965
JB		 2394
2395 cb->args[0] = wp_idx;
2396 cb->args[1] = if_idx;
2397
2398 return skb->len;
2399}
2400
2401static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2402{
2403 struct sk_buff *msg;
1b8ec87a 2404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2405 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2406
fd2120ca 2407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2408 if (!msg)
4c476991 2409 return -ENOMEM;
55682965 2410
15e47304 2411 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2412 rdev, wdev) < 0) {
4c476991
JB		 2413 nlmsg_free(msg);
2414 return -ENOBUFS;
2415 }
55682965 2416
134e6375 2417 return genlmsg_reply(msg, info);
55682965
JB		 2418}
2419
66f7ac50
MW		 2420static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2421 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2422 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2423 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2424 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2425 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2426 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2427};
2428
2429static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2430{
2431 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2432 int flag;
2433
2434 *mntrflags = 0;
2435
2436 if (!nla)
2437 return -EINVAL;
2438
2439 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2440 nla, mntr_flags_policy))
2441 return -EINVAL;
2442
2443 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2444 if (flags[flag])
2445 *mntrflags |= (1<<flag);
2446
2447 return 0;
2448}
2449
9bc383de 2450static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2451 struct net_device *netdev, u8 use_4addr,
2452 enum nl80211_iftype iftype)
9bc383de 2453{
ad4bb6f8 2454 if (!use_4addr) {
f350a0a8 2455 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2456 return -EBUSY;
9bc383de 2457 return 0;
ad4bb6f8 2458 }
9bc383de
JB		 2459
2460 switch (iftype) {
2461 case NL80211_IFTYPE_AP_VLAN:
2462 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2463 return 0;
2464 break;
2465 case NL80211_IFTYPE_STATION:
2466 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2467 return 0;
2468 break;
2469 default:
2470 break;
2471 }
2472
2473 return -EOPNOTSUPP;
2474}
2475
55682965
JB		 2476static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2477{
4c476991 2478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2479 struct vif_params params;
e36d56b6 2480 int err;
04a773ad 2481 enum nl80211_iftype otype, ntype;
4c476991 2482 struct net_device *dev = info->user_ptr[1];
92ffe055 2483 u32 _flags, *flags = NULL;
ac7f9cfa 2484 bool change = false;
55682965 2485
2ec600d6
LCC		 2486 memset(&params, 0, sizeof(params));
2487
04a773ad 2488 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2489
723b038d 2490 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2491 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2492 if (otype != ntype)
ac7f9cfa 2493 change = true;
4c476991
JB		 2494 if (ntype > NL80211_IFTYPE_MAX)
2495 return -EINVAL;
723b038d
JB		 2496 }
2497
92ffe055 2498 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2499 struct wireless_dev *wdev = dev->ieee80211_ptr;
2500
4c476991
JB		 2501 if (ntype != NL80211_IFTYPE_MESH_POINT)
2502 return -EINVAL;
29cbe68c
JB		 2503 if (netif_running(dev))
2504 return -EBUSY;
2505
2506 wdev_lock(wdev);
2507 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2508 IEEE80211_MAX_MESH_ID_LEN);
2509 wdev->mesh_id_up_len =
2510 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2511 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2512 wdev->mesh_id_up_len);
2513 wdev_unlock(wdev);
2ec600d6
LCC		 2514 }
2515
8b787643
FF		 2516 if (info->attrs[NL80211_ATTR_4ADDR]) {
2517 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2518 change = true;
ad4bb6f8 2519 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2520 if (err)
4c476991 2521 return err;
8b787643
FF		 2522 } else {
2523 params.use_4addr = -1;
2524 }
2525
92ffe055 2526 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2527 if (ntype != NL80211_IFTYPE_MONITOR)
2528 return -EINVAL;
92ffe055
JB		 2529 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2530 &_flags);
ac7f9cfa 2531 if (err)
4c476991 2532 return err;
ac7f9cfa
JB		 2533
2534 flags = &_flags;
2535 change = true;
92ffe055 2536 }
3b85875a 2537
18003297 2538 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2539 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2540 return -EOPNOTSUPP;
2541
ac7f9cfa 2542 if (change)
3d54d255 2543 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2544 else
2545 err = 0;
60719ffd 2546
9bc383de
JB		 2547 if (!err && params.use_4addr != -1)
2548 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2549
55682965
JB		 2550 return err;
2551}
2552
2553static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2554{
4c476991 2555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2556 struct vif_params params;
84efbb84 2557 struct wireless_dev *wdev;
1c90f9d4 2558 struct sk_buff *msg;
55682965
JB		 2559 int err;
2560 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2561 u32 flags;
55682965 2562
78f22b6a
JB		 2563 /* to avoid failing a new interface creation due to pending removal */
2564 cfg80211_destroy_ifaces(rdev);
2565
2ec600d6
LCC		 2566 memset(&params, 0, sizeof(params));
2567
55682965
JB		 2568 if (!info->attrs[NL80211_ATTR_IFNAME])
2569 return -EINVAL;
2570
2571 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2572 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2573 if (type > NL80211_IFTYPE_MAX)
2574 return -EINVAL;
2575 }
2576
79c97e97 2577 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2578 !(rdev->wiphy.interface_modes & (1 << type)))
2579 return -EOPNOTSUPP;
55682965 2580
1c18f145
AS		 2581 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2582 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2583 ETH_ALEN);
2584 if (!is_valid_ether_addr(params.macaddr))
2585 return -EADDRNOTAVAIL;
2586 }
2587
9bc383de 2588 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2589 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2590 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2591 if (err)
4c476991 2592 return err;
9bc383de 2593 }
8b787643 2594
1c90f9d4
JB		 2595 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2596 if (!msg)
2597 return -ENOMEM;
2598
66f7ac50
MW		 2599 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2600 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2601 &flags);
e057d3c3 2602
18003297 2603 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2604 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2605 return -EOPNOTSUPP;
2606
e35e4d28
HG		 2607 wdev = rdev_add_virtual_intf(rdev,
2608 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2609 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2610 if (IS_ERR(wdev)) {
2611 nlmsg_free(msg);
84efbb84 2612 return PTR_ERR(wdev);
1c90f9d4 2613 }
2ec600d6 2614
78f22b6a
JB		 2615 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2616 wdev->owner_nlportid = info->snd_portid;
2617
98104fde
JB		 2618 switch (type) {
2619 case NL80211_IFTYPE_MESH_POINT:
2620 if (!info->attrs[NL80211_ATTR_MESH_ID])
2621 break;
29cbe68c
JB		 2622 wdev_lock(wdev);
2623 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2624 IEEE80211_MAX_MESH_ID_LEN);
2625 wdev->mesh_id_up_len =
2626 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2627 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2628 wdev->mesh_id_up_len);
2629 wdev_unlock(wdev);
98104fde
JB		 2630 break;
2631 case NL80211_IFTYPE_P2P_DEVICE:
2632 /*
2633 * P2P Device doesn't have a netdev, so doesn't go
2634 * through the netdev notifier and must be added here
2635 */
2636 mutex_init(&wdev->mtx);
2637 INIT_LIST_HEAD(&wdev->event_list);
2638 spin_lock_init(&wdev->event_lock);
2639 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2640 spin_lock_init(&wdev->mgmt_registrations_lock);
2641
98104fde
JB		 2642 wdev->identifier = ++rdev->wdev_id;
2643 list_add_rcu(&wdev->list, &rdev->wdev_list);
2644 rdev->devlist_generation++;
98104fde
JB		 2645 break;
2646 default:
2647 break;
29cbe68c
JB		 2648 }
2649
15e47304 2650 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2651 rdev, wdev) < 0) {
2652 nlmsg_free(msg);
2653 return -ENOBUFS;
2654 }
2655
2656 return genlmsg_reply(msg, info);
55682965
JB		 2657}
2658
2659static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2660{
4c476991 2661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2662 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2663
4c476991
JB		 2664 if (!rdev->ops->del_virtual_intf)
2665 return -EOPNOTSUPP;
55682965 2666
84efbb84
JB		 2667 /*
2668 * If we remove a wireless device without a netdev then clear
2669 * user_ptr[1] so that nl80211_post_doit won't dereference it
2670 * to check if it needs to do dev_put(). Otherwise it crashes
2671 * since the wdev has been freed, unlike with a netdev where
2672 * we need the dev_put() for the netdev to really be freed.
2673 */
2674 if (!wdev->netdev)
2675 info->user_ptr[1] = NULL;
2676
e35e4d28 2677 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2678}
2679
1d9d9213
SW		 2680static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2681{
2682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2683 struct net_device *dev = info->user_ptr[1];
2684 u16 noack_map;
2685
2686 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2687 return -EINVAL;
2688
2689 if (!rdev->ops->set_noack_map)
2690 return -EOPNOTSUPP;
2691
2692 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2693
e35e4d28 2694 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2695}
2696
41ade00f
JB		 2697struct get_key_cookie {
2698 struct sk_buff *msg;
2699 int error;
b9454e83 2700 int idx;
41ade00f
JB		 2701};
2702
2703static void get_key_callback(void *c, struct key_params *params)
2704{
b9454e83 2705 struct nlattr *key;
41ade00f
JB		 2706 struct get_key_cookie *cookie = c;
2707
9360ffd1
DM		 2708 if ((params->key &&
2709 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2710 params->key_len, params->key)) ||
2711 (params->seq &&
2712 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2713 params->seq_len, params->seq)) ||
2714 (params->cipher &&
2715 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2716 params->cipher)))
2717 goto nla_put_failure;
41ade00f 2718
b9454e83
JB		 2719 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2720 if (!key)
2721 goto nla_put_failure;
2722
9360ffd1
DM		 2723 if ((params->key &&
2724 nla_put(cookie->msg, NL80211_KEY_DATA,
2725 params->key_len, params->key)) ||
2726 (params->seq &&
2727 nla_put(cookie->msg, NL80211_KEY_SEQ,
2728 params->seq_len, params->seq)) ||
2729 (params->cipher &&
2730 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2731 params->cipher)))
2732 goto nla_put_failure;
b9454e83 2733
9360ffd1
DM		 2734 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2735 goto nla_put_failure;
b9454e83
JB		 2736
2737 nla_nest_end(cookie->msg, key);
2738
41ade00f
JB		 2739 return;
2740 nla_put_failure:
2741 cookie->error = 1;
2742}
2743
2744static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2745{
4c476991 2746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2747 int err;
4c476991 2748 struct net_device *dev = info->user_ptr[1];
41ade00f 2749 u8 key_idx = 0;
e31b8213
JB		 2750 const u8 *mac_addr = NULL;
2751 bool pairwise;
41ade00f
JB		 2752 struct get_key_cookie cookie = {
2753 .error = 0,
2754 };
2755 void *hdr;
2756 struct sk_buff *msg;
2757
2758 if (info->attrs[NL80211_ATTR_KEY_IDX])
2759 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2760
3cfcf6ac 2761 if (key_idx > 5)
41ade00f
JB		 2762 return -EINVAL;
2763
2764 if (info->attrs[NL80211_ATTR_MAC])
2765 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2766
e31b8213
JB		 2767 pairwise = !!mac_addr;
2768 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2769 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2770 if (kt >= NUM_NL80211_KEYTYPES)
2771 return -EINVAL;
2772 if (kt != NL80211_KEYTYPE_GROUP &&
2773 kt != NL80211_KEYTYPE_PAIRWISE)
2774 return -EINVAL;
2775 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2776 }
2777
4c476991
JB		 2778 if (!rdev->ops->get_key)
2779 return -EOPNOTSUPP;
41ade00f 2780
fd2120ca 2781 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2782 if (!msg)
2783 return -ENOMEM;
41ade00f 2784
15e47304 2785 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2786 NL80211_CMD_NEW_KEY);
cb35fba3 2787 if (!hdr)
9fe271af 2788 goto nla_put_failure;
41ade00f
JB		 2789
2790 cookie.msg = msg;
b9454e83 2791 cookie.idx = key_idx;
41ade00f 2792
9360ffd1
DM		 2793 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2794 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2795 goto nla_put_failure;
2796 if (mac_addr &&
2797 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2798 goto nla_put_failure;
41ade00f 2799
e31b8213
JB		 2800 if (pairwise && mac_addr &&
2801 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2802 return -ENOENT;
2803
e35e4d28
HG		 2804 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2805 get_key_callback);
41ade00f
JB		 2806
2807 if (err)
6c95e2a2 2808 goto free_msg;
41ade00f
JB		 2809
2810 if (cookie.error)
2811 goto nla_put_failure;
2812
2813 genlmsg_end(msg, hdr);
4c476991 2814 return genlmsg_reply(msg, info);
41ade00f
JB		 2815
2816 nla_put_failure:
2817 err = -ENOBUFS;
6c95e2a2 2818 free_msg:
41ade00f 2819 nlmsg_free(msg);
41ade00f
JB		 2820 return err;
2821}
2822
2823static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2824{
4c476991 2825 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2826 struct key_parse key;
41ade00f 2827 int err;
4c476991 2828 struct net_device *dev = info->user_ptr[1];
41ade00f 2829
b9454e83
JB		 2830 err = nl80211_parse_key(info, &key);
2831 if (err)
2832 return err;
41ade00f 2833
b9454e83 2834 if (key.idx < 0)
41ade00f
JB		 2835 return -EINVAL;
2836
b9454e83
JB		 2837 /* only support setting default key */
2838 if (!key.def && !key.defmgmt)
41ade00f
JB		 2839 return -EINVAL;
2840
dbd2fd65 2841 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2842
dbd2fd65
JB		 2843 if (key.def) {
2844 if (!rdev->ops->set_default_key) {
2845 err = -EOPNOTSUPP;
2846 goto out;
2847 }
41ade00f 2848
dbd2fd65
JB		 2849 err = nl80211_key_allowed(dev->ieee80211_ptr);
2850 if (err)
2851 goto out;
2852
e35e4d28 2853 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2854 key.def_uni, key.def_multi);
2855
2856 if (err)
2857 goto out;
fffd0934 2858
3d23e349 2859#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2860 dev->ieee80211_ptr->wext.default_key = key.idx;
2861#endif
2862 } else {
2863 if (key.def_uni || !key.def_multi) {
2864 err = -EINVAL;
2865 goto out;
2866 }
2867
2868 if (!rdev->ops->set_default_mgmt_key) {
2869 err = -EOPNOTSUPP;
2870 goto out;
2871 }
2872
2873 err = nl80211_key_allowed(dev->ieee80211_ptr);
2874 if (err)
2875 goto out;
2876
e35e4d28 2877 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2878 if (err)
2879 goto out;
2880
2881#ifdef CONFIG_CFG80211_WEXT
2882 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2883#endif
dbd2fd65
JB		 2884 }
2885
2886 out:
fffd0934 2887 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2888
41ade00f
JB		 2889 return err;
2890}
2891
2892static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2893{
4c476991 2894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2895 int err;
4c476991 2896 struct net_device *dev = info->user_ptr[1];
b9454e83 2897 struct key_parse key;
e31b8213 2898 const u8 *mac_addr = NULL;
41ade00f 2899
b9454e83
JB		 2900 err = nl80211_parse_key(info, &key);
2901 if (err)
2902 return err;
41ade00f 2903
b9454e83 2904 if (!key.p.key)
41ade00f
JB		 2905 return -EINVAL;
2906
41ade00f
JB		 2907 if (info->attrs[NL80211_ATTR_MAC])
2908 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2909
e31b8213
JB		 2910 if (key.type == -1) {
2911 if (mac_addr)
2912 key.type = NL80211_KEYTYPE_PAIRWISE;
2913 else
2914 key.type = NL80211_KEYTYPE_GROUP;
2915 }
2916
2917 /* for now */
2918 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2919 key.type != NL80211_KEYTYPE_GROUP)
2920 return -EINVAL;
2921
4c476991
JB		 2922 if (!rdev->ops->add_key)
2923 return -EOPNOTSUPP;
25e47c18 2924
e31b8213
JB		 2925 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2926 key.type == NL80211_KEYTYPE_PAIRWISE,
2927 mac_addr))
4c476991 2928 return -EINVAL;
41ade00f 2929
fffd0934
JB		 2930 wdev_lock(dev->ieee80211_ptr);
2931 err = nl80211_key_allowed(dev->ieee80211_ptr);
2932 if (!err)
e35e4d28
HG		 2933 err = rdev_add_key(rdev, dev, key.idx,
2934 key.type == NL80211_KEYTYPE_PAIRWISE,
2935 mac_addr, &key.p);
fffd0934 2936 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2937
41ade00f
JB		 2938 return err;
2939}
2940
2941static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2942{
4c476991 2943 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2944 int err;
4c476991 2945 struct net_device *dev = info->user_ptr[1];
41ade00f 2946 u8 *mac_addr = NULL;
b9454e83 2947 struct key_parse key;
41ade00f 2948
b9454e83
JB		 2949 err = nl80211_parse_key(info, &key);
2950 if (err)
2951 return err;
41ade00f
JB		 2952
2953 if (info->attrs[NL80211_ATTR_MAC])
2954 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2955
e31b8213
JB		 2956 if (key.type == -1) {
2957 if (mac_addr)
2958 key.type = NL80211_KEYTYPE_PAIRWISE;
2959 else
2960 key.type = NL80211_KEYTYPE_GROUP;
2961 }
2962
2963 /* for now */
2964 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2965 key.type != NL80211_KEYTYPE_GROUP)
2966 return -EINVAL;
2967
4c476991
JB		 2968 if (!rdev->ops->del_key)
2969 return -EOPNOTSUPP;
41ade00f 2970
fffd0934
JB		 2971 wdev_lock(dev->ieee80211_ptr);
2972 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2973
2974 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2975 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2976 err = -ENOENT;
2977
fffd0934 2978 if (!err)
e35e4d28
HG		 2979 err = rdev_del_key(rdev, dev, key.idx,
2980 key.type == NL80211_KEYTYPE_PAIRWISE,
2981 mac_addr);
41ade00f 2982
3d23e349 2983#ifdef CONFIG_CFG80211_WEXT
08645126 2984 if (!err) {
b9454e83 2985 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2986 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2987 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2988 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2989 }
2990#endif
fffd0934 2991 wdev_unlock(dev->ieee80211_ptr);
08645126 2992
41ade00f
JB		 2993 return err;
2994}
2995
77765eaf
VT		 2996/* This function returns an error or the number of nested attributes */
2997static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2998{
2999 struct nlattr *attr;
3000 int n_entries = 0, tmp;
3001
3002 nla_for_each_nested(attr, nl_attr, tmp) {
3003 if (nla_len(attr) != ETH_ALEN)
3004 return -EINVAL;
3005
3006 n_entries++;
3007 }
3008
3009 return n_entries;
3010}
3011
3012/*
3013 * This function parses ACL information and allocates memory for ACL data.
3014 * On successful return, the calling function is responsible to free the
3015 * ACL buffer returned by this function.
3016 */
3017static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3018 struct genl_info *info)
3019{
3020 enum nl80211_acl_policy acl_policy;
3021 struct nlattr *attr;
3022 struct cfg80211_acl_data *acl;
3023 int i = 0, n_entries, tmp;
3024
3025 if (!wiphy->max_acl_mac_addrs)
3026 return ERR_PTR(-EOPNOTSUPP);
3027
3028 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3029 return ERR_PTR(-EINVAL);
3030
3031 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3032 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3033 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3034 return ERR_PTR(-EINVAL);
3035
3036 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3037 return ERR_PTR(-EINVAL);
3038
3039 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3040 if (n_entries < 0)
3041 return ERR_PTR(n_entries);
3042
3043 if (n_entries > wiphy->max_acl_mac_addrs)
3044 return ERR_PTR(-ENOTSUPP);
3045
3046 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3047 GFP_KERNEL);
3048 if (!acl)
3049 return ERR_PTR(-ENOMEM);
3050
3051 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3052 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3053 i++;
3054 }
3055
3056 acl->n_acl_entries = n_entries;
3057 acl->acl_policy = acl_policy;
3058
3059 return acl;
3060}
3061
3062static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3063{
3064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3065 struct net_device *dev = info->user_ptr[1];
3066 struct cfg80211_acl_data *acl;
3067 int err;
3068
3069 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3070 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3071 return -EOPNOTSUPP;
3072
3073 if (!dev->ieee80211_ptr->beacon_interval)
3074 return -EINVAL;
3075
3076 acl = parse_acl_data(&rdev->wiphy, info);
3077 if (IS_ERR(acl))
3078 return PTR_ERR(acl);
3079
3080 err = rdev_set_mac_acl(rdev, dev, acl);
3081
3082 kfree(acl);
3083
3084 return err;
3085}
3086
a1193be8 3087static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3088 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3089{
8860020e 3090 bool haveinfo = false;
ed1b6cc7 3091
a1193be8
SW		 3092 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3093 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3094 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3095 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3096 return -EINVAL;
3097
8860020e 3098 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3099
a1193be8
SW		 3100 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3101 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3102 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3103 if (!bcn->head_len)
3104 return -EINVAL;
3105 haveinfo = true;
ed1b6cc7
JB		 3106 }
3107
a1193be8
SW		 3108 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3109 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3110 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3111 haveinfo = true;
ed1b6cc7
JB		 3112 }
3113
4c476991
JB		 3114 if (!haveinfo)
3115 return -EINVAL;
3b85875a 3116
a1193be8
SW		 3117 if (attrs[NL80211_ATTR_IE]) {
3118 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3119 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3120 }
3121
a1193be8 3122 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3123 bcn->proberesp_ies =
a1193be8 3124 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3125 bcn->proberesp_ies_len =
a1193be8 3126 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3127 }
3128
a1193be8 3129 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3130 bcn->assocresp_ies =
a1193be8 3131 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3132 bcn->assocresp_ies_len =
a1193be8 3133 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3134 }
3135
a1193be8
SW		 3136 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3137 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3138 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3139 }
3140
8860020e
JB		 3141 return 0;
3142}
3143
46c1dd0c
FF		 3144static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3145 struct cfg80211_ap_settings *params)
3146{
3147 struct wireless_dev *wdev;
3148 bool ret = false;
3149
89a54e48 3150 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3151 if (wdev->iftype != NL80211_IFTYPE_AP &&
3152 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3153 continue;
3154
683b6d3b 3155 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3156 continue;
3157
683b6d3b 3158 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3159 ret = true;
3160 break;
3161 }
3162
46c1dd0c
FF		 3163 return ret;
3164}
3165
e39e5b5e
JM		 3166static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3167 enum nl80211_auth_type auth_type,
3168 enum nl80211_commands cmd)
3169{
3170 if (auth_type > NL80211_AUTHTYPE_MAX)
3171 return false;
3172
3173 switch (cmd) {
3174 case NL80211_CMD_AUTHENTICATE:
3175 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3176 auth_type == NL80211_AUTHTYPE_SAE)
3177 return false;
3178 return true;
3179 case NL80211_CMD_CONNECT:
3180 case NL80211_CMD_START_AP:
3181 /* SAE not supported yet */
3182 if (auth_type == NL80211_AUTHTYPE_SAE)
3183 return false;
3184 return true;
3185 default:
3186 return false;
3187 }
3188}
3189
8860020e
JB		 3190static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3191{
3192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3193 struct net_device *dev = info->user_ptr[1];
3194 struct wireless_dev *wdev = dev->ieee80211_ptr;
3195 struct cfg80211_ap_settings params;
3196 int err;
3197
3198 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3199 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3200 return -EOPNOTSUPP;
3201
3202 if (!rdev->ops->start_ap)
3203 return -EOPNOTSUPP;
3204
3205 if (wdev->beacon_interval)
3206 return -EALREADY;
3207
3208 memset(&params, 0, sizeof(params));
3209
3210 /* these are required for START_AP */
3211 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3212 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3213 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3214 return -EINVAL;
3215
a1193be8 3216 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3217 if (err)
3218 return err;
3219
3220 params.beacon_interval =
3221 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3222 params.dtim_period =
3223 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3224
3225 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3226 if (err)
3227 return err;
3228
3229 /*
3230 * In theory, some of these attributes should be required here
3231 * but since they were not used when the command was originally
3232 * added, keep them optional for old user space programs to let
3233 * them continue to work with drivers that do not need the
3234 * additional information -- drivers must check!
3235 */
3236 if (info->attrs[NL80211_ATTR_SSID]) {
3237 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3238 params.ssid_len =
3239 nla_len(info->attrs[NL80211_ATTR_SSID]);
3240 if (params.ssid_len == 0 ||
3241 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3242 return -EINVAL;
3243 }
3244
3245 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3246 params.hidden_ssid = nla_get_u32(
3247 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3248 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3249 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3250 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3251 return -EINVAL;
3252 }
3253
3254 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3255
3256 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3257 params.auth_type = nla_get_u32(
3258 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3259 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3260 NL80211_CMD_START_AP))
8860020e
JB		 3261 return -EINVAL;
3262 } else
3263 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3264
3265 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3266 NL80211_MAX_NR_CIPHER_SUITES);
3267 if (err)
3268 return err;
3269
1b658f11
VT		 3270 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3271 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3272 return -EOPNOTSUPP;
3273 params.inactivity_timeout = nla_get_u16(
3274 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3275 }
3276
53cabad7
JB		 3277 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3278 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3279 return -EINVAL;
3280 params.p2p_ctwindow =
3281 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3282 if (params.p2p_ctwindow > 127)
3283 return -EINVAL;
3284 if (params.p2p_ctwindow != 0 &&
3285 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3286 return -EINVAL;
3287 }
3288
3289 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3290 u8 tmp;
3291
3292 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3293 return -EINVAL;
3294 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3295 if (tmp > 1)
3296 return -EINVAL;
3297 params.p2p_opp_ps = tmp;
3298 if (params.p2p_opp_ps != 0 &&
3299 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3300 return -EINVAL;
3301 }
3302
aa430da4 3303 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3304 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3305 if (err)
3306 return err;
3307 } else if (wdev->preset_chandef.chan) {
3308 params.chandef = wdev->preset_chandef;
46c1dd0c 3309 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3310 return -EINVAL;
3311
174e0cd2
IP		 3312 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3313 wdev->iftype))
aa430da4
JB		 3314 return -EINVAL;
3315
77765eaf
VT		 3316 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3317 params.acl = parse_acl_data(&rdev->wiphy, info);
3318 if (IS_ERR(params.acl))
3319 return PTR_ERR(params.acl);
3320 }
3321
c56589ed 3322 wdev_lock(wdev);
e35e4d28 3323 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3324 if (!err) {
683b6d3b 3325 wdev->preset_chandef = params.chandef;
8860020e 3326 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3327 wdev->chandef = params.chandef;
06e191e2
AQ		 3328 wdev->ssid_len = params.ssid_len;
3329 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3330 }
c56589ed 3331 wdev_unlock(wdev);
77765eaf
VT		 3332
3333 kfree(params.acl);
3334
56d1893d 3335 return err;
ed1b6cc7
JB		 3336}
3337
8860020e
JB		 3338static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3339{
3340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3341 struct net_device *dev = info->user_ptr[1];
3342 struct wireless_dev *wdev = dev->ieee80211_ptr;
3343 struct cfg80211_beacon_data params;
3344 int err;
3345
3346 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3347 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3348 return -EOPNOTSUPP;
3349
3350 if (!rdev->ops->change_beacon)
3351 return -EOPNOTSUPP;
3352
3353 if (!wdev->beacon_interval)
3354 return -EINVAL;
3355
a1193be8 3356 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3357 if (err)
3358 return err;
3359
c56589ed
SW		 3360 wdev_lock(wdev);
3361 err = rdev_change_beacon(rdev, dev, &params);
3362 wdev_unlock(wdev);
3363
3364 return err;
8860020e
JB		 3365}
3366
3367static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3368{
4c476991
JB		 3369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3370 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3371
7c8d5e03 3372 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3373}
3374
5727ef1b
JB		 3375static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3376 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3377 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3378 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3379 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3380 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3381 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3382};
3383
eccb8e8f 3384static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3385 enum nl80211_iftype iftype,
eccb8e8f 3386 struct station_parameters *params)
5727ef1b
JB		 3387{
3388 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3389 struct nlattr *nla;
5727ef1b
JB		 3390 int flag;
3391
eccb8e8f
JB		 3392 /*
3393 * Try parsing the new attribute first so userspace
3394 * can specify both for older kernels.
3395 */
3396 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3397 if (nla) {
3398 struct nl80211_sta_flag_update *sta_flags;
3399
3400 sta_flags = nla_data(nla);
3401 params->sta_flags_mask = sta_flags->mask;
3402 params->sta_flags_set = sta_flags->set;
77ee7c89 3403 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3404 if ((params->sta_flags_mask |
3405 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3406 return -EINVAL;
3407 return 0;
3408 }
3409
3410 /* if present, parse the old attribute */
5727ef1b 3411
eccb8e8f 3412 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3413 if (!nla)
3414 return 0;
3415
3416 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3417 nla, sta_flags_policy))
3418 return -EINVAL;
3419
bdd3ae3d
JB		 3420 /*
3421 * Only allow certain flags for interface types so that
3422 * other attributes are silently ignored. Remember that
3423 * this is backward compatibility code with old userspace
3424 * and shouldn't be hit in other cases anyway.
3425 */
3426 switch (iftype) {
3427 case NL80211_IFTYPE_AP:
3428 case NL80211_IFTYPE_AP_VLAN:
3429 case NL80211_IFTYPE_P2P_GO:
3430 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3431 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3432 BIT(NL80211_STA_FLAG_WME) |
3433 BIT(NL80211_STA_FLAG_MFP);
3434 break;
3435 case NL80211_IFTYPE_P2P_CLIENT:
3436 case NL80211_IFTYPE_STATION:
3437 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3438 BIT(NL80211_STA_FLAG_TDLS_PEER);
3439 break;
3440 case NL80211_IFTYPE_MESH_POINT:
3441 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3442 BIT(NL80211_STA_FLAG_MFP) |
3443 BIT(NL80211_STA_FLAG_AUTHORIZED);
3444 default:
3445 return -EINVAL;
3446 }
5727ef1b 3447
3383b5a6
JB		 3448 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3449 if (flags[flag]) {
eccb8e8f 3450 params->sta_flags_set |= (1<<flag);
5727ef1b 3451
3383b5a6
JB		 3452 /* no longer support new API additions in old API */
3453 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3454 return -EINVAL;
3455 }
3456 }
3457
5727ef1b
JB		 3458 return 0;
3459}
3460
c8dcfd8a
FF		 3461static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3462 int attr)
3463{
3464 struct nlattr *rate;
8eb41c8d
VK		 3465 u32 bitrate;
3466 u16 bitrate_compat;
c8dcfd8a
FF		 3467
3468 rate = nla_nest_start(msg, attr);
3469 if (!rate)
db9c64cf 3470 return false;
c8dcfd8a
FF		 3471
3472 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3473 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3474 /* report 16-bit bitrate only if we can */
3475 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3476 if (bitrate > 0 &&
3477 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3478 return false;
3479 if (bitrate_compat > 0 &&
3480 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3481 return false;
3482
3483 if (info->flags & RATE_INFO_FLAGS_MCS) {
3484 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3485 return false;
3486 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3487 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3488 return false;
3489 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3490 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3491 return false;
3492 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3493 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3494 return false;
3495 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3496 return false;
3497 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3498 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3499 return false;
3500 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3501 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3502 return false;
3503 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3504 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3505 return false;
3506 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3507 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3508 return false;
3509 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3510 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3511 return false;
3512 }
c8dcfd8a
FF		 3513
3514 nla_nest_end(msg, rate);
3515 return true;
c8dcfd8a
FF		 3516}
3517
119363c7
FF		 3518static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3519 int id)
3520{
3521 void *attr;
3522 int i = 0;
3523
3524 if (!mask)
3525 return true;
3526
3527 attr = nla_nest_start(msg, id);
3528 if (!attr)
3529 return false;
3530
3531 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3532 if (!(mask & BIT(i)))
3533 continue;
3534
3535 if (nla_put_u8(msg, i, signal[i]))
3536 return false;
3537 }
3538
3539 nla_nest_end(msg, attr);
3540
3541 return true;
3542}
3543
15e47304 3544static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3545 int flags,
3546 struct cfg80211_registered_device *rdev,
3547 struct net_device *dev,
98b62183 3548 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3549{
3550 void *hdr;
f4263c98 3551 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3552
15e47304 3553 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3554 if (!hdr)
3555 return -1;
3556
9360ffd1
DM		 3557 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3558 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3559 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3560 goto nla_put_failure;
f5ea9120 3561
2ec600d6
LCC		 3562 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3563 if (!sinfoattr)
fd5b74dc 3564 goto nla_put_failure;
9360ffd1
DM		 3565 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3566 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3567 sinfo->connected_time))
3568 goto nla_put_failure;
3569 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3570 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3571 sinfo->inactive_time))
3572 goto nla_put_failure;
42745e03
VK		 3573 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3574 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3575 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3576 (u32)sinfo->rx_bytes))
9360ffd1 3577 goto nla_put_failure;
42745e03 3578 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3579 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3580 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3581 (u32)sinfo->tx_bytes))
3582 goto nla_put_failure;
3583 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3584 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3585 sinfo->rx_bytes))
3586 goto nla_put_failure;
3587 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3588 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3589 sinfo->tx_bytes))
3590 goto nla_put_failure;
3591 if ((sinfo->filled & STATION_INFO_LLID) &&
3592 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3593 goto nla_put_failure;
3594 if ((sinfo->filled & STATION_INFO_PLID) &&
3595 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3596 goto nla_put_failure;
3597 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3598 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3599 sinfo->plink_state))
3600 goto nla_put_failure;
66266b3a
JL		 3601 switch (rdev->wiphy.signal_type) {
3602 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3603 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3604 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3605 sinfo->signal))
3606 goto nla_put_failure;
3607 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3608 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3609 sinfo->signal_avg))
3610 goto nla_put_failure;
66266b3a
JL		 3611 break;
3612 default:
3613 break;
3614 }
119363c7
FF		 3615 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3616 if (!nl80211_put_signal(msg, sinfo->chains,
3617 sinfo->chain_signal,
3618 NL80211_STA_INFO_CHAIN_SIGNAL))
3619 goto nla_put_failure;
3620 }
3621 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3622 if (!nl80211_put_signal(msg, sinfo->chains,
3623 sinfo->chain_signal_avg,
3624 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3625 goto nla_put_failure;
3626 }
420e7fab 3627 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3628 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3629 NL80211_STA_INFO_TX_BITRATE))
3630 goto nla_put_failure;
3631 }
3632 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3633 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3634 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3635 goto nla_put_failure;
420e7fab 3636 }
9360ffd1
DM		 3637 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3638 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3639 sinfo->rx_packets))
3640 goto nla_put_failure;
3641 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3642 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3643 sinfo->tx_packets))
3644 goto nla_put_failure;
3645 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3646 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3647 sinfo->tx_retries))
3648 goto nla_put_failure;
3649 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3650 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3651 sinfo->tx_failed))
3652 goto nla_put_failure;
867d849f
AQ		 3653 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3654 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3655 sinfo->expected_throughput))
3656 goto nla_put_failure;
9360ffd1
DM		 3657 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3658 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3659 sinfo->beacon_loss_count))
3660 goto nla_put_failure;
3b1c5a53
MP		 3661 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3662 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3663 sinfo->local_pm))
3664 goto nla_put_failure;
3665 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3666 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3667 sinfo->peer_pm))
3668 goto nla_put_failure;
3669 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3670 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3671 sinfo->nonpeer_pm))
3672 goto nla_put_failure;
f4263c98
PS		 3673 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3674 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3675 if (!bss_param)
3676 goto nla_put_failure;
3677
9360ffd1
DM		 3678 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3679 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3680 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3681 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3682 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3683 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3684 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3685 sinfo->bss_param.dtim_period) ||
3686 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3687 sinfo->bss_param.beacon_interval))
3688 goto nla_put_failure;
f4263c98
PS		 3689
3690 nla_nest_end(msg, bss_param);
3691 }
9360ffd1
DM		 3692 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3693 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3694 sizeof(struct nl80211_sta_flag_update),
3695 &sinfo->sta_flags))
3696 goto nla_put_failure;
7eab0f64
JL		 3697 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3698 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3699 sinfo->t_offset))
3700 goto nla_put_failure;
2ec600d6 3701 nla_nest_end(msg, sinfoattr);
fd5b74dc 3702
9360ffd1
DM		 3703 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3704 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3705 sinfo->assoc_req_ies))
3706 goto nla_put_failure;
50d3dfb7 3707
fd5b74dc
JB		 3708 return genlmsg_end(msg, hdr);
3709
3710 nla_put_failure:
bc3ed28c
TG		 3711 genlmsg_cancel(msg, hdr);
3712 return -EMSGSIZE;
fd5b74dc
JB		 3713}
3714
2ec600d6 3715static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3716 struct netlink_callback *cb)
2ec600d6 3717{
2ec600d6 3718 struct station_info sinfo;
1b8ec87a 3719 struct cfg80211_registered_device *rdev;
97990a06 3720 struct wireless_dev *wdev;
2ec600d6 3721 u8 mac_addr[ETH_ALEN];
97990a06 3722 int sta_idx = cb->args[2];
2ec600d6 3723 int err;
2ec600d6 3724
1b8ec87a 3725 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3726 if (err)
3727 return err;
bba95fef 3728
97990a06
JB		 3729 if (!wdev->netdev) {
3730 err = -EINVAL;
3731 goto out_err;
3732 }
3733
1b8ec87a 3734 if (!rdev->ops->dump_station) {
eec60b03 3735 err = -EOPNOTSUPP;
bba95fef
JB		 3736 goto out_err;
3737 }
3738
bba95fef 3739 while (1) {
f612cedf 3740 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3741 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3742 mac_addr, &sinfo);
bba95fef
JB		 3743 if (err == -ENOENT)
3744 break;
3745 if (err)
3b85875a 3746 goto out_err;
bba95fef
JB		 3747
3748 if (nl80211_send_station(skb,
15e47304 3749 NETLINK_CB(cb->skb).portid,
bba95fef 3750 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3751 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3752 &sinfo) < 0)
3753 goto out;
3754
3755 sta_idx++;
3756 }
3757
3758
3759 out:
97990a06 3760 cb->args[2] = sta_idx;
bba95fef 3761 err = skb->len;
bba95fef 3762 out_err:
1b8ec87a 3763 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3764
3765 return err;
2ec600d6 3766}
fd5b74dc 3767
5727ef1b
JB		 3768static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3769{
4c476991
JB		 3770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3771 struct net_device *dev = info->user_ptr[1];
2ec600d6 3772 struct station_info sinfo;
fd5b74dc
JB		 3773 struct sk_buff *msg;
3774 u8 *mac_addr = NULL;
4c476991 3775 int err;
fd5b74dc 3776
2ec600d6 3777 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3778
3779 if (!info->attrs[NL80211_ATTR_MAC])
3780 return -EINVAL;
3781
3782 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3783
4c476991
JB		 3784 if (!rdev->ops->get_station)
3785 return -EOPNOTSUPP;
3b85875a 3786
e35e4d28 3787 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3788 if (err)
4c476991 3789 return err;
2ec600d6 3790
fd2120ca 3791 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3792 if (!msg)
4c476991 3793 return -ENOMEM;
fd5b74dc 3794
15e47304 3795 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3796 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3797 nlmsg_free(msg);
3798 return -ENOBUFS;
3799 }
3b85875a 3800
4c476991 3801 return genlmsg_reply(msg, info);
5727ef1b
JB		 3802}
3803
77ee7c89
JB		 3804int cfg80211_check_station_change(struct wiphy *wiphy,
3805 struct station_parameters *params,
3806 enum cfg80211_station_type statype)
3807{
3808 if (params->listen_interval != -1)
3809 return -EINVAL;
3810 if (params->aid)
3811 return -EINVAL;
3812
3813 /* When you run into this, adjust the code below for the new flag */
3814 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3815
3816 switch (statype) {
eef941e6
TP		 3817 case CFG80211_STA_MESH_PEER_KERNEL:
3818 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3819 /*
3820 * No ignoring the TDLS flag here -- the userspace mesh
3821 * code doesn't have the bug of including TDLS in the
3822 * mask everywhere.
3823 */
3824 if (params->sta_flags_mask &
3825 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3826 BIT(NL80211_STA_FLAG_MFP) |
3827 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3828 return -EINVAL;
3829 break;
3830 case CFG80211_STA_TDLS_PEER_SETUP:
3831 case CFG80211_STA_TDLS_PEER_ACTIVE:
3832 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3833 return -EINVAL;
3834 /* ignore since it can't change */
3835 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3836 break;
3837 default:
3838 /* disallow mesh-specific things */
3839 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3840 return -EINVAL;
3841 if (params->local_pm)
3842 return -EINVAL;
3843 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3844 return -EINVAL;
3845 }
3846
3847 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3848 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3849 /* TDLS can't be set, ... */
3850 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3851 return -EINVAL;
3852 /*
3853 * ... but don't bother the driver with it. This works around
3854 * a hostapd/wpa_supplicant issue -- it always includes the
3855 * TLDS_PEER flag in the mask even for AP mode.
3856 */
3857 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3858 }
3859
3860 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3861 /* reject other things that can't change */
3862 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3863 return -EINVAL;
3864 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3865 return -EINVAL;
3866 if (params->supported_rates)
3867 return -EINVAL;
3868 if (params->ext_capab || params->ht_capa || params->vht_capa)
3869 return -EINVAL;
3870 }
3871
3872 if (statype != CFG80211_STA_AP_CLIENT) {
3873 if (params->vlan)
3874 return -EINVAL;
3875 }
3876
3877 switch (statype) {
3878 case CFG80211_STA_AP_MLME_CLIENT:
3879 /* Use this only for authorizing/unauthorizing a station */
3880 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3881 return -EOPNOTSUPP;
3882 break;
3883 case CFG80211_STA_AP_CLIENT:
3884 /* accept only the listed bits */
3885 if (params->sta_flags_mask &
3886 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3887 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3888 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3889 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3890 BIT(NL80211_STA_FLAG_WME) |
3891 BIT(NL80211_STA_FLAG_MFP)))
3892 return -EINVAL;
3893
3894 /* but authenticated/associated only if driver handles it */
3895 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3896 params->sta_flags_mask &
3897 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3898 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3899 return -EINVAL;
3900 break;
3901 case CFG80211_STA_IBSS:
3902 case CFG80211_STA_AP_STA:
3903 /* reject any changes other than AUTHORIZED */
3904 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3905 return -EINVAL;
3906 break;
3907 case CFG80211_STA_TDLS_PEER_SETUP:
3908 /* reject any changes other than AUTHORIZED or WME */
3909 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3910 BIT(NL80211_STA_FLAG_WME)))
3911 return -EINVAL;
3912 /* force (at least) rates when authorizing */
3913 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3914 !params->supported_rates)
3915 return -EINVAL;
3916 break;
3917 case CFG80211_STA_TDLS_PEER_ACTIVE:
3918 /* reject any changes */
3919 return -EINVAL;
eef941e6 3920 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3921 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3922 return -EINVAL;
3923 break;
eef941e6 3924 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3925 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3926 return -EINVAL;
3927 break;
3928 }
3929
3930 return 0;
3931}
3932EXPORT_SYMBOL(cfg80211_check_station_change);
3933
5727ef1b 3934/*
c258d2de 3935 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3936 */
80b99899
JB		 3937static struct net_device *get_vlan(struct genl_info *info,
3938 struct cfg80211_registered_device *rdev)
5727ef1b 3939{
463d0183 3940 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3941 struct net_device *v;
3942 int ret;
3943
3944 if (!vlanattr)
3945 return NULL;
3946
3947 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3948 if (!v)
3949 return ERR_PTR(-ENODEV);
3950
3951 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3952 ret = -EINVAL;
3953 goto error;
5727ef1b 3954 }
80b99899 3955
77ee7c89
JB		 3956 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3957 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3958 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3959 ret = -EINVAL;
3960 goto error;
3961 }
3962
80b99899
JB		 3963 if (!netif_running(v)) {
3964 ret = -ENETDOWN;
3965 goto error;
3966 }
3967
3968 return v;
3969 error:
3970 dev_put(v);
3971 return ERR_PTR(ret);
5727ef1b
JB		 3972}
3973
94e860f1
JB		 3974static const struct nla_policy
3975nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3976 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3977 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3978};
3979
ff276691
JB		 3980static int nl80211_parse_sta_wme(struct genl_info *info,
3981 struct station_parameters *params)
df881293 3982{
df881293
JM		 3983 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3984 struct nlattr *nla;
3985 int err;
3986
df881293
JM		 3987 /* parse WME attributes if present */
3988 if (!info->attrs[NL80211_ATTR_STA_WME])
3989 return 0;
3990
3991 nla = info->attrs[NL80211_ATTR_STA_WME];
3992 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3993 nl80211_sta_wme_policy);
3994 if (err)
3995 return err;
3996
3997 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3998 params->uapsd_queues = nla_get_u8(
3999 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4000 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4001 return -EINVAL;
4002
4003 if (tb[NL80211_STA_WME_MAX_SP])
4004 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4005
4006 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4007 return -EINVAL;
4008
4009 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4010
4011 return 0;
4012}
4013
c01fc9ad
SD		 4014static int nl80211_parse_sta_channel_info(struct genl_info *info,
4015 struct station_parameters *params)
4016{
4017 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4018 params->supported_channels =
4019 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4020 params->supported_channels_len =
4021 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4022 /*
4023 * Need to include at least one (first channel, number of
4024 * channels) tuple for each subband, and must have proper
4025 * tuples for the rest of the data as well.
4026 */
4027 if (params->supported_channels_len < 2)
4028 return -EINVAL;
4029 if (params->supported_channels_len % 2)
4030 return -EINVAL;
4031 }
4032
4033 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4034 params->supported_oper_classes =
4035 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4036 params->supported_oper_classes_len =
4037 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4038 /*
4039 * The value of the Length field of the Supported Operating
4040 * Classes element is between 2 and 253.
4041 */
4042 if (params->supported_oper_classes_len < 2 ||
4043 params->supported_oper_classes_len > 253)
4044 return -EINVAL;
4045 }
4046 return 0;
4047}
4048
ff276691
JB		 4049static int nl80211_set_station_tdls(struct genl_info *info,
4050 struct station_parameters *params)
4051{
c01fc9ad 4052 int err;
ff276691 4053 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4054 if (info->attrs[NL80211_ATTR_PEER_AID])
4055 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4056 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4057 params->ht_capa =
4058 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4059 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4060 params->vht_capa =
4061 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4062
c01fc9ad
SD		 4063 err = nl80211_parse_sta_channel_info(info, params);
4064 if (err)
4065 return err;
4066
ff276691
JB		 4067 return nl80211_parse_sta_wme(info, params);
4068}
4069
5727ef1b
JB		 4070static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4071{
4c476991 4072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4073 struct net_device *dev = info->user_ptr[1];
5727ef1b 4074 struct station_parameters params;
77ee7c89
JB		 4075 u8 *mac_addr;
4076 int err;
5727ef1b
JB		 4077
4078 memset(&params, 0, sizeof(params));
4079
4080 params.listen_interval = -1;
4081
77ee7c89
JB		 4082 if (!rdev->ops->change_station)
4083 return -EOPNOTSUPP;
4084
5727ef1b
JB		 4085 if (info->attrs[NL80211_ATTR_STA_AID])
4086 return -EINVAL;
4087
4088 if (!info->attrs[NL80211_ATTR_MAC])
4089 return -EINVAL;
4090
4091 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4092
4093 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4094 params.supported_rates =
4095 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4096 params.supported_rates_len =
4097 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4098 }
4099
9d62a986
JM		 4100 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4101 params.capability =
4102 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4103 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4104 }
4105
4106 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4107 params.ext_capab =
4108 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4109 params.ext_capab_len =
4110 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4111 }
4112
df881293 4113 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4114 return -EINVAL;
36aedc90 4115
bdd3ae3d 4116 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4117 return -EINVAL;
4118
f8bacc21 4119 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4120 params.plink_action =
f8bacc21
JB		 4121 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4122 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4123 return -EINVAL;
4124 }
2ec600d6 4125
f8bacc21 4126 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4127 params.plink_state =
f8bacc21
JB		 4128 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4129 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4130 return -EINVAL;
4131 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4132 }
9c3990aa 4133
3b1c5a53
MP		 4134 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4135 enum nl80211_mesh_power_mode pm = nla_get_u32(
4136 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4137
4138 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4139 pm > NL80211_MESH_POWER_MAX)
4140 return -EINVAL;
4141
4142 params.local_pm = pm;
4143 }
4144
77ee7c89
JB		 4145 /* Include parameters for TDLS peer (will check later) */
4146 err = nl80211_set_station_tdls(info, &params);
4147 if (err)
4148 return err;
4149
4150 params.vlan = get_vlan(info, rdev);
4151 if (IS_ERR(params.vlan))
4152 return PTR_ERR(params.vlan);
4153
a97f4424
JB		 4154 switch (dev->ieee80211_ptr->iftype) {
4155 case NL80211_IFTYPE_AP:
4156 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4157 case NL80211_IFTYPE_P2P_GO:
074ac8df 4158 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4159 case NL80211_IFTYPE_STATION:
267335d6 4160 case NL80211_IFTYPE_ADHOC:
a97f4424 4161 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4162 break;
4163 default:
77ee7c89
JB		 4164 err = -EOPNOTSUPP;
4165 goto out_put_vlan;
034d655e
JB		 4166 }
4167
77ee7c89 4168 /* driver will call cfg80211_check_station_change() */
e35e4d28 4169 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4170
77ee7c89 4171 out_put_vlan:
5727ef1b
JB		 4172 if (params.vlan)
4173 dev_put(params.vlan);
3b85875a 4174
5727ef1b
JB		 4175 return err;
4176}
4177
4178static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4179{
4c476991 4180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4181 int err;
4c476991 4182 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4183 struct station_parameters params;
4184 u8 *mac_addr = NULL;
4185
4186 memset(&params, 0, sizeof(params));
4187
984c311b
JB		 4188 if (!rdev->ops->add_station)
4189 return -EOPNOTSUPP;
4190
5727ef1b
JB		 4191 if (!info->attrs[NL80211_ATTR_MAC])
4192 return -EINVAL;
4193
5727ef1b
JB		 4194 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4195 return -EINVAL;
4196
4197 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4198 return -EINVAL;
4199
5e4b6f56
JM		 4200 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4201 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4202 return -EINVAL;
4203
5727ef1b
JB		 4204 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4205 params.supported_rates =
4206 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4207 params.supported_rates_len =
4208 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4209 params.listen_interval =
4210 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4211
3d124ea2 4212 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4213 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4214 else
4215 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4216 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4217 return -EINVAL;
51b50fbe 4218
9d62a986
JM		 4219 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4220 params.capability =
4221 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4222 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4223 }
4224
4225 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4226 params.ext_capab =
4227 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4228 params.ext_capab_len =
4229 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4230 }
4231
36aedc90
JM		 4232 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4233 params.ht_capa =
4234 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4235
f461be3e
MP		 4236 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4237 params.vht_capa =
4238 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4239
60f4a7b1
MK		 4240 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4241 params.opmode_notif_used = true;
4242 params.opmode_notif =
4243 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4244 }
4245
f8bacc21 4246 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4247 params.plink_action =
f8bacc21
JB		 4248 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4249 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4250 return -EINVAL;
4251 }
96b78dff 4252
c01fc9ad
SD		 4253 err = nl80211_parse_sta_channel_info(info, &params);
4254 if (err)
4255 return err;
4256
ff276691
JB		 4257 err = nl80211_parse_sta_wme(info, &params);
4258 if (err)
4259 return err;
bdd90d5e 4260
bdd3ae3d 4261 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4262 return -EINVAL;
4263
77ee7c89
JB		 4264 /* When you run into this, adjust the code below for the new flag */
4265 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4266
bdd90d5e
JB		 4267 switch (dev->ieee80211_ptr->iftype) {
4268 case NL80211_IFTYPE_AP:
4269 case NL80211_IFTYPE_AP_VLAN:
4270 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4271 /* ignore WME attributes if iface/sta is not capable */
4272 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4273 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4274 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4275
bdd90d5e 4276 /* TDLS peers cannot be added */
3d124ea2
JM		 4277 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4278 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4279 return -EINVAL;
bdd90d5e
JB		 4280 /* but don't bother the driver with it */
4281 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4282
d582cffb
JB		 4283 /* allow authenticated/associated only if driver handles it */
4284 if (!(rdev->wiphy.features &
4285 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4286 params.sta_flags_mask &
4287 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4288 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4289 return -EINVAL;
4290
bdd90d5e
JB		 4291 /* must be last in here for error handling */
4292 params.vlan = get_vlan(info, rdev);
4293 if (IS_ERR(params.vlan))
4294 return PTR_ERR(params.vlan);
4295 break;
4296 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4297 /* ignore uAPSD data */
4298 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4299
d582cffb
JB		 4300 /* associated is disallowed */
4301 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4302 return -EINVAL;
bdd90d5e 4303 /* TDLS peers cannot be added */
3d124ea2
JM		 4304 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4305 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4306 return -EINVAL;
4307 break;
4308 case NL80211_IFTYPE_STATION:
93d08f0b 4309 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4310 /* ignore uAPSD data */
4311 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4312
77ee7c89
JB		 4313 /* these are disallowed */
4314 if (params.sta_flags_mask &
4315 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4316 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4317 return -EINVAL;
bdd90d5e
JB		 4318 /* Only TDLS peers can be added */
4319 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4320 return -EINVAL;
4321 /* Can only add if TDLS ... */
4322 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4323 return -EOPNOTSUPP;
4324 /* ... with external setup is supported */
4325 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4326 return -EOPNOTSUPP;
77ee7c89
JB		 4327 /*
4328 * Older wpa_supplicant versions always mark the TDLS peer
4329 * as authorized, but it shouldn't yet be.
4330 */
4331 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4332 break;
4333 default:
4334 return -EOPNOTSUPP;
c75786c9
EP		 4335 }
4336
bdd90d5e 4337 /* be aware of params.vlan when changing code here */
5727ef1b 4338
e35e4d28 4339 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4340
5727ef1b
JB		 4341 if (params.vlan)
4342 dev_put(params.vlan);
5727ef1b
JB		 4343 return err;
4344}
4345
4346static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4347{
4c476991
JB		 4348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4349 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4350 u8 *mac_addr = NULL;
4351
4352 if (info->attrs[NL80211_ATTR_MAC])
4353 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4354
e80cf853 4355 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4356 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4357 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4358 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4359 return -EINVAL;
5727ef1b 4360
4c476991
JB		 4361 if (!rdev->ops->del_station)
4362 return -EOPNOTSUPP;
3b85875a 4363
e35e4d28 4364 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4365}
4366
15e47304 4367static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4368 int flags, struct net_device *dev,
4369 u8 *dst, u8 *next_hop,
4370 struct mpath_info *pinfo)
4371{
4372 void *hdr;
4373 struct nlattr *pinfoattr;
4374
15e47304 4375 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4376 if (!hdr)
4377 return -1;
4378
9360ffd1
DM		 4379 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4380 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4381 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4382 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4383 goto nla_put_failure;
f5ea9120 4384
2ec600d6
LCC		 4385 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4386 if (!pinfoattr)
4387 goto nla_put_failure;
9360ffd1
DM		 4388 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4389 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4390 pinfo->frame_qlen))
4391 goto nla_put_failure;
4392 if (((pinfo->filled & MPATH_INFO_SN) &&
4393 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4394 ((pinfo->filled & MPATH_INFO_METRIC) &&
4395 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4396 pinfo->metric)) ||
4397 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4398 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4399 pinfo->exptime)) ||
4400 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4401 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4402 pinfo->flags)) ||
4403 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4404 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4405 pinfo->discovery_timeout)) ||
4406 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4407 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4408 pinfo->discovery_retries)))
4409 goto nla_put_failure;
2ec600d6
LCC		 4410
4411 nla_nest_end(msg, pinfoattr);
4412
4413 return genlmsg_end(msg, hdr);
4414
4415 nla_put_failure:
bc3ed28c
TG		 4416 genlmsg_cancel(msg, hdr);
4417 return -EMSGSIZE;
2ec600d6
LCC		 4418}
4419
4420static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4421 struct netlink_callback *cb)
2ec600d6 4422{
2ec600d6 4423 struct mpath_info pinfo;
1b8ec87a 4424 struct cfg80211_registered_device *rdev;
97990a06 4425 struct wireless_dev *wdev;
2ec600d6
LCC		 4426 u8 dst[ETH_ALEN];
4427 u8 next_hop[ETH_ALEN];
97990a06 4428 int path_idx = cb->args[2];
2ec600d6 4429 int err;
2ec600d6 4430
1b8ec87a 4431 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4432 if (err)
4433 return err;
bba95fef 4434
1b8ec87a 4435 if (!rdev->ops->dump_mpath) {
eec60b03 4436 err = -EOPNOTSUPP;
bba95fef
JB		 4437 goto out_err;
4438 }
4439
97990a06 4440 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4441 err = -EOPNOTSUPP;
0448b5fc 4442 goto out_err;
eec60b03
JM		 4443 }
4444
bba95fef 4445 while (1) {
1b8ec87a 4446 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4447 next_hop, &pinfo);
bba95fef 4448 if (err == -ENOENT)
2ec600d6 4449 break;
bba95fef 4450 if (err)
3b85875a 4451 goto out_err;
2ec600d6 4452
15e47304 4453 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4454 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4455 wdev->netdev, dst, next_hop,
bba95fef
JB		 4456 &pinfo) < 0)
4457 goto out;
2ec600d6 4458
bba95fef 4459 path_idx++;
2ec600d6 4460 }
2ec600d6 4461
2ec600d6 4462
bba95fef 4463 out:
97990a06 4464 cb->args[2] = path_idx;
bba95fef 4465 err = skb->len;
bba95fef 4466 out_err:
1b8ec87a 4467 nl80211_finish_wdev_dump(rdev);
bba95fef 4468 return err;
2ec600d6
LCC		 4469}
4470
4471static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4472{
4c476991 4473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4474 int err;
4c476991 4475 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4476 struct mpath_info pinfo;
4477 struct sk_buff *msg;
4478 u8 *dst = NULL;
4479 u8 next_hop[ETH_ALEN];
4480
4481 memset(&pinfo, 0, sizeof(pinfo));
4482
4483 if (!info->attrs[NL80211_ATTR_MAC])
4484 return -EINVAL;
4485
4486 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4487
4c476991
JB		 4488 if (!rdev->ops->get_mpath)
4489 return -EOPNOTSUPP;
2ec600d6 4490
4c476991
JB		 4491 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4492 return -EOPNOTSUPP;
eec60b03 4493
e35e4d28 4494 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4495 if (err)
4c476991 4496 return err;
2ec600d6 4497
fd2120ca 4498 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4499 if (!msg)
4c476991 4500 return -ENOMEM;
2ec600d6 4501
15e47304 4502 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4503 dev, dst, next_hop, &pinfo) < 0) {
4504 nlmsg_free(msg);
4505 return -ENOBUFS;
4506 }
3b85875a 4507
4c476991 4508 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4509}
4510
4511static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4512{
4c476991
JB		 4513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4514 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4515 u8 *dst = NULL;
4516 u8 *next_hop = NULL;
4517
4518 if (!info->attrs[NL80211_ATTR_MAC])
4519 return -EINVAL;
4520
4521 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4522 return -EINVAL;
4523
4524 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4525 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4526
4c476991
JB		 4527 if (!rdev->ops->change_mpath)
4528 return -EOPNOTSUPP;
35a8efe1 4529
4c476991
JB		 4530 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4531 return -EOPNOTSUPP;
2ec600d6 4532
e35e4d28 4533 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4534}
4c476991 4535
2ec600d6
LCC		 4536static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4537{
4c476991
JB		 4538 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4539 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4540 u8 *dst = NULL;
4541 u8 *next_hop = NULL;
4542
4543 if (!info->attrs[NL80211_ATTR_MAC])
4544 return -EINVAL;
4545
4546 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4547 return -EINVAL;
4548
4549 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4550 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4551
4c476991
JB		 4552 if (!rdev->ops->add_mpath)
4553 return -EOPNOTSUPP;
35a8efe1 4554
4c476991
JB		 4555 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4556 return -EOPNOTSUPP;
2ec600d6 4557
e35e4d28 4558 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4559}
4560
4561static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4562{
4c476991
JB		 4563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4564 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4565 u8 *dst = NULL;
4566
4567 if (info->attrs[NL80211_ATTR_MAC])
4568 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4569
4c476991
JB		 4570 if (!rdev->ops->del_mpath)
4571 return -EOPNOTSUPP;
3b85875a 4572
e35e4d28 4573 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4574}
4575
9f1ba906
JM		 4576static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4577{
4c476991
JB		 4578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4579 struct net_device *dev = info->user_ptr[1];
c56589ed 4580 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4581 struct bss_parameters params;
c56589ed 4582 int err;
9f1ba906
JM		 4583
4584 memset(&params, 0, sizeof(params));
4585 /* default to not changing parameters */
4586 params.use_cts_prot = -1;
4587 params.use_short_preamble = -1;
4588 params.use_short_slot_time = -1;
fd8aaaf3 4589 params.ap_isolate = -1;
50b12f59 4590 params.ht_opmode = -1;
53cabad7
JB		 4591 params.p2p_ctwindow = -1;
4592 params.p2p_opp_ps = -1;
9f1ba906
JM		 4593
4594 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4595 params.use_cts_prot =
4596 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4597 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4598 params.use_short_preamble =
4599 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4600 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4601 params.use_short_slot_time =
4602 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4603 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4604 params.basic_rates =
4605 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4606 params.basic_rates_len =
4607 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4608 }
fd8aaaf3
FF		 4609 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4610 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4611 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4612 params.ht_opmode =
4613 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4614
53cabad7
JB		 4615 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4616 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4617 return -EINVAL;
4618 params.p2p_ctwindow =
4619 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4620 if (params.p2p_ctwindow < 0)
4621 return -EINVAL;
4622 if (params.p2p_ctwindow != 0 &&
4623 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4624 return -EINVAL;
4625 }
4626
4627 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4628 u8 tmp;
4629
4630 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4631 return -EINVAL;
4632 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4633 if (tmp > 1)
4634 return -EINVAL;
4635 params.p2p_opp_ps = tmp;
4636 if (params.p2p_opp_ps &&
4637 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4638 return -EINVAL;
4639 }
4640
4c476991
JB		 4641 if (!rdev->ops->change_bss)
4642 return -EOPNOTSUPP;
9f1ba906 4643
074ac8df 4644 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4645 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4646 return -EOPNOTSUPP;
3b85875a 4647
c56589ed
SW		 4648 wdev_lock(wdev);
4649 err = rdev_change_bss(rdev, dev, &params);
4650 wdev_unlock(wdev);
4651
4652 return err;
9f1ba906
JM		 4653}
4654
b54452b0 4655static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4656 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4657 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4658 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4659 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4660 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4661 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4662 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4663};
4664
4665static int parse_reg_rule(struct nlattr *tb[],
4666 struct ieee80211_reg_rule *reg_rule)
4667{
4668 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4669 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4670
4671 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4672 return -EINVAL;
4673 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4674 return -EINVAL;
4675 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4676 return -EINVAL;
b0dfd2ea
JD		 4677 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4678 return -EINVAL;
b2e1b302
LR		 4679 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4680 return -EINVAL;
4681
4682 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4683
4684 freq_range->start_freq_khz =
4685 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4686 freq_range->end_freq_khz =
4687 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4688 freq_range->max_bandwidth_khz =
4689 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4690
4691 power_rule->max_eirp =
4692 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4693
4694 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4695 power_rule->max_antenna_gain =
4696 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4697
089027e5
JD		 4698 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4699 reg_rule->dfs_cac_ms =
4700 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4701
b2e1b302
LR		 4702 return 0;
4703}
4704
4705static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4706{
b2e1b302 4707 char *data = NULL;
57b5ce07 4708 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4709
80778f18
LR		 4710 /*
4711 * You should only get this when cfg80211 hasn't yet initialized
4712 * completely when built-in to the kernel right between the time
4713 * window between nl80211_init() and regulatory_init(), if that is
4714 * even possible.
4715 */
458f4f9e 4716 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4717 return -EINPROGRESS;
80778f18 4718
57b5ce07
LR		 4719 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4720 user_reg_hint_type =
4721 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4722 else
4723 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4724
4725 switch (user_reg_hint_type) {
4726 case NL80211_USER_REG_HINT_USER:
4727 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4728 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4729 return -EINVAL;
4730
4731 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4732 return regulatory_hint_user(data, user_reg_hint_type);
4733 case NL80211_USER_REG_HINT_INDOOR:
4734 return regulatory_hint_indoor_user();
57b5ce07
LR		 4735 default:
4736 return -EINVAL;
4737 }
b2e1b302
LR		 4738}
4739
24bdd9f4 4740static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4741 struct genl_info *info)
93da9cc1 4742{
4c476991 4743 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4744 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4745 struct wireless_dev *wdev = dev->ieee80211_ptr;
4746 struct mesh_config cur_params;
4747 int err = 0;
93da9cc1 4748 void *hdr;
4749 struct nlattr *pinfoattr;
4750 struct sk_buff *msg;
4751
29cbe68c
JB		 4752 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4753 return -EOPNOTSUPP;
4754
24bdd9f4 4755 if (!rdev->ops->get_mesh_config)
4c476991 4756 return -EOPNOTSUPP;
f3f92586 4757
29cbe68c
JB		 4758 wdev_lock(wdev);
4759 /* If not connected, get default parameters */
4760 if (!wdev->mesh_id_len)
4761 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4762 else
e35e4d28 4763 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4764 wdev_unlock(wdev);
4765
93da9cc1 4766 if (err)
4c476991 4767 return err;
93da9cc1 4768
4769 /* Draw up a netlink message to send back */
fd2120ca 4770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4771 if (!msg)
4772 return -ENOMEM;
15e47304 4773 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4774 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4775 if (!hdr)
efe1cf0c 4776 goto out;
24bdd9f4 4777 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4778 if (!pinfoattr)
4779 goto nla_put_failure;
9360ffd1
DM		 4780 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4781 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4782 cur_params.dot11MeshRetryTimeout) ||
4783 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4784 cur_params.dot11MeshConfirmTimeout) ||
4785 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4786 cur_params.dot11MeshHoldingTimeout) ||
4787 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4788 cur_params.dot11MeshMaxPeerLinks) ||
4789 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4790 cur_params.dot11MeshMaxRetries) ||
4791 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4792 cur_params.dot11MeshTTL) ||
4793 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4794 cur_params.element_ttl) ||
4795 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4796 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4797 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4798 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4799 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4800 cur_params.dot11MeshHWMPmaxPREQretries) ||
4801 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4802 cur_params.path_refresh_time) ||
4803 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4804 cur_params.min_discovery_timeout) ||
4805 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4806 cur_params.dot11MeshHWMPactivePathTimeout) ||
4807 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4808 cur_params.dot11MeshHWMPpreqMinInterval) ||
4809 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4810 cur_params.dot11MeshHWMPperrMinInterval) ||
4811 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4812 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4813 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4814 cur_params.dot11MeshHWMPRootMode) ||
4815 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4816 cur_params.dot11MeshHWMPRannInterval) ||
4817 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4818 cur_params.dot11MeshGateAnnouncementProtocol) ||
4819 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4820 cur_params.dot11MeshForwarding) ||
4821 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4822 cur_params.rssi_threshold) ||
4823 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4824 cur_params.ht_opmode) ||
4825 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4826 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4827 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4828 cur_params.dot11MeshHWMProotInterval) ||
4829 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4830 cur_params.dot11MeshHWMPconfirmationInterval) ||
4831 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4832 cur_params.power_mode) ||
4833 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4834 cur_params.dot11MeshAwakeWindowDuration) ||
4835 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4836 cur_params.plink_timeout))
9360ffd1 4837 goto nla_put_failure;
93da9cc1 4838 nla_nest_end(msg, pinfoattr);
4839 genlmsg_end(msg, hdr);
4c476991 4840 return genlmsg_reply(msg, info);
93da9cc1 4841
3b85875a 4842 nla_put_failure:
93da9cc1 4843 genlmsg_cancel(msg, hdr);
efe1cf0c 4844 out:
d080e275 4845 nlmsg_free(msg);
4c476991 4846 return -ENOBUFS;
93da9cc1 4847}
4848
b54452b0 4849static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4850 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4851 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4852 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4853 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4854 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4855 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4856 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4857 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4858 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4859 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4860 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4861 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4862 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4863 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4864 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4865 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4866 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4867 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4868 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4869 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4870 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4871 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4872 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4873 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4874 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4875 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4876 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4877 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4878};
4879
c80d545d
JC		 4880static const struct nla_policy
4881 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4882 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4883 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4884 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4885 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4886 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4887 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4888 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4889 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4890 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4891};
4892
24bdd9f4 4893static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4894 struct mesh_config *cfg,
4895 u32 *mask_out)
93da9cc1 4896{
93da9cc1 4897 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4898 u32 mask = 0;
93da9cc1 4899
ea54fba2
MP		 4900#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4901do { \
4902 if (tb[attr]) { \
4903 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4904 return -EINVAL; \
4905 cfg->param = fn(tb[attr]); \
4906 mask |= (1 << (attr - 1)); \
4907 } \
4908} while (0)
bd90fdcc
JB		 4909
4910
24bdd9f4 4911 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4912 return -EINVAL;
4913 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4914 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4915 nl80211_meshconf_params_policy))
93da9cc1 4916 return -EINVAL;
4917
93da9cc1 4918 /* This makes sure that there aren't more than 32 mesh config
4919 * parameters (otherwise our bitfield scheme would not work.) */
4920 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4921
4922 /* Fill in the params struct */
ea54fba2 4923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4924 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4925 nla_get_u16);
ea54fba2 4926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4927 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4928 nla_get_u16);
ea54fba2 4929 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4930 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4931 nla_get_u16);
ea54fba2 4932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4933 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4934 nla_get_u16);
ea54fba2 4935 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4936 mask, NL80211_MESHCONF_MAX_RETRIES,
4937 nla_get_u8);
ea54fba2 4938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4939 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4940 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4941 mask, NL80211_MESHCONF_ELEMENT_TTL,
4942 nla_get_u8);
ea54fba2 4943 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4944 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4945 nla_get_u8);
ea54fba2
MP		 4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4947 1, 255, mask,
a4f606ea
CYY		 4948 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4949 nla_get_u32);
ea54fba2 4950 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4951 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4952 nla_get_u8);
ea54fba2 4953 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4954 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4955 nla_get_u32);
ea54fba2 4956 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4957 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4958 nla_get_u16);
ea54fba2
MP		 4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4960 1, 65535, mask,
a4f606ea
CYY		 4961 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4962 nla_get_u32);
93da9cc1 4963 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4964 1, 65535, mask,
4965 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4966 nla_get_u16);
dca7e943 4967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4968 1, 65535, mask,
4969 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4970 nla_get_u16);
93da9cc1 4971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4972 dot11MeshHWMPnetDiameterTraversalTime,
4973 1, 65535, mask,
a4f606ea
CYY		 4974 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4975 nla_get_u16);
ea54fba2
MP		 4976 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4977 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4978 nla_get_u8);
4979 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4980 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4981 nla_get_u16);
63c5723b 4982 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4983 dot11MeshGateAnnouncementProtocol, 0, 1,
4984 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4985 nla_get_u8);
ea54fba2 4986 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4987 mask, NL80211_MESHCONF_FORWARDING,
4988 nla_get_u8);
83374fe9 4989 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4990 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4991 nla_get_s32);
ea54fba2 4992 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4993 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4994 nla_get_u16);
4995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4996 1, 65535, mask,
ac1073a6
CYY		 4997 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4998 nla_get_u32);
ea54fba2 4999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5000 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5001 nla_get_u16);
5002 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5003 dot11MeshHWMPconfirmationInterval,
5004 1, 65535, mask,
728b19e5 5005 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5006 nla_get_u16);
3b1c5a53
MP		 5007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5008 NL80211_MESH_POWER_ACTIVE,
5009 NL80211_MESH_POWER_MAX,
5010 mask, NL80211_MESHCONF_POWER_MODE,
5011 nla_get_u32);
5012 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5013 0, 65535, mask,
5014 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5015 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5016 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5017 nla_get_u32);
bd90fdcc
JB		 5018 if (mask_out)
5019 *mask_out = mask;
c80d545d 5020
bd90fdcc
JB		 5021 return 0;
5022
5023#undef FILL_IN_MESH_PARAM_IF_SET
5024}
5025
c80d545d
JC		 5026static int nl80211_parse_mesh_setup(struct genl_info *info,
5027 struct mesh_setup *setup)
5028{
bb2798d4 5029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5030 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5031
5032 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5033 return -EINVAL;
5034 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5035 info->attrs[NL80211_ATTR_MESH_SETUP],
5036 nl80211_mesh_setup_params_policy))
5037 return -EINVAL;
5038
d299a1f2
JC		 5039 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5040 setup->sync_method =
5041 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5042 IEEE80211_SYNC_METHOD_VENDOR :
5043 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5044
c80d545d
JC		 5045 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5046 setup->path_sel_proto =
5047 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5048 IEEE80211_PATH_PROTOCOL_VENDOR :
5049 IEEE80211_PATH_PROTOCOL_HWMP;
5050
5051 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5052 setup->path_metric =
5053 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5054 IEEE80211_PATH_METRIC_VENDOR :
5055 IEEE80211_PATH_METRIC_AIRTIME;
5056
581a8b0f
JC		 5057
5058 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5059 struct nlattr *ieattr =
581a8b0f 5060 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5061 if (!is_valid_ie_attr(ieattr))
5062 return -EINVAL;
581a8b0f
JC		 5063 setup->ie = nla_data(ieattr);
5064 setup->ie_len = nla_len(ieattr);
c80d545d 5065 }
bb2798d4
TP		 5066 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5067 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5068 return -EINVAL;
5069 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5070 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5071 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5072 if (setup->is_secure)
5073 setup->user_mpm = true;
c80d545d 5074
6e16d90b
CT		 5075 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5076 if (!setup->user_mpm)
5077 return -EINVAL;
5078 setup->auth_id =
5079 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5080 }
5081
c80d545d
JC		 5082 return 0;
5083}
5084
24bdd9f4 5085static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5086 struct genl_info *info)
bd90fdcc
JB		 5087{
5088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5089 struct net_device *dev = info->user_ptr[1];
29cbe68c 5090 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5091 struct mesh_config cfg;
5092 u32 mask;
5093 int err;
5094
29cbe68c
JB		 5095 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5096 return -EOPNOTSUPP;
5097
24bdd9f4 5098 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5099 return -EOPNOTSUPP;
5100
24bdd9f4 5101 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5102 if (err)
5103 return err;
5104
29cbe68c
JB		 5105 wdev_lock(wdev);
5106 if (!wdev->mesh_id_len)
5107 err = -ENOLINK;
5108
5109 if (!err)
e35e4d28 5110 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5111
5112 wdev_unlock(wdev);
5113
5114 return err;
93da9cc1 5115}
5116
f130347c
LR		 5117static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5118{
458f4f9e 5119 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5120 struct sk_buff *msg;
5121 void *hdr = NULL;
5122 struct nlattr *nl_reg_rules;
5123 unsigned int i;
f130347c
LR		 5124
5125 if (!cfg80211_regdomain)
5fe231e8 5126 return -EINVAL;
f130347c 5127
fd2120ca 5128 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5129 if (!msg)
5130 return -ENOBUFS;
f130347c 5131
15e47304 5132 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5133 NL80211_CMD_GET_REG);
5134 if (!hdr)
efe1cf0c 5135 goto put_failure;
f130347c 5136
57b5ce07
LR		 5137 if (reg_last_request_cell_base() &&
5138 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5139 NL80211_USER_REG_HINT_CELL_BASE))
5140 goto nla_put_failure;
5141
458f4f9e
JB		 5142 rcu_read_lock();
5143 regdom = rcu_dereference(cfg80211_regdomain);
5144
5145 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5146 (regdom->dfs_region &&
5147 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5148 goto nla_put_failure_rcu;
5149
f130347c
LR		 5150 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5151 if (!nl_reg_rules)
458f4f9e 5152 goto nla_put_failure_rcu;
f130347c 5153
458f4f9e 5154 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5155 struct nlattr *nl_reg_rule;
5156 const struct ieee80211_reg_rule *reg_rule;
5157 const struct ieee80211_freq_range *freq_range;
5158 const struct ieee80211_power_rule *power_rule;
97524820 5159 unsigned int max_bandwidth_khz;
f130347c 5160
458f4f9e 5161 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5162 freq_range = &reg_rule->freq_range;
5163 power_rule = &reg_rule->power_rule;
5164
5165 nl_reg_rule = nla_nest_start(msg, i);
5166 if (!nl_reg_rule)
458f4f9e 5167 goto nla_put_failure_rcu;
f130347c 5168
97524820
JD		 5169 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5170 if (!max_bandwidth_khz)
5171 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5172 reg_rule);
5173
9360ffd1
DM		 5174 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5175 reg_rule->flags) ||
5176 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5177 freq_range->start_freq_khz) ||
5178 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5179 freq_range->end_freq_khz) ||
5180 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5181 max_bandwidth_khz) ||
9360ffd1
DM		 5182 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5183 power_rule->max_antenna_gain) ||
5184 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5185 power_rule->max_eirp) ||
5186 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5187 reg_rule->dfs_cac_ms))
458f4f9e 5188 goto nla_put_failure_rcu;
f130347c
LR		 5189
5190 nla_nest_end(msg, nl_reg_rule);
5191 }
458f4f9e 5192 rcu_read_unlock();
f130347c
LR		 5193
5194 nla_nest_end(msg, nl_reg_rules);
5195
5196 genlmsg_end(msg, hdr);
5fe231e8 5197 return genlmsg_reply(msg, info);
f130347c 5198
458f4f9e
JB		 5199nla_put_failure_rcu:
5200 rcu_read_unlock();
f130347c
LR		 5201nla_put_failure:
5202 genlmsg_cancel(msg, hdr);
efe1cf0c 5203put_failure:
d080e275 5204 nlmsg_free(msg);
5fe231e8 5205 return -EMSGSIZE;
f130347c
LR		 5206}
5207
b2e1b302
LR		 5208static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5209{
5210 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5211 struct nlattr *nl_reg_rule;
5212 char *alpha2 = NULL;
5213 int rem_reg_rules = 0, r = 0;
5214 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5215 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5216 struct ieee80211_regdomain *rd = NULL;
5217
5218 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5219 return -EINVAL;
5220
5221 if (!info->attrs[NL80211_ATTR_REG_RULES])
5222 return -EINVAL;
5223
5224 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5225
8b60b078
LR		 5226 if (info->attrs[NL80211_ATTR_DFS_REGION])
5227 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5228
b2e1b302 5229 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5230 rem_reg_rules) {
b2e1b302
LR		 5231 num_rules++;
5232 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5233 return -EINVAL;
b2e1b302
LR		 5234 }
5235
e438768f
LR		 5236 if (!reg_is_valid_request(alpha2))
5237 return -EINVAL;
5238
b2e1b302 5239 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5240 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5241
5242 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5243 if (!rd)
5244 return -ENOMEM;
b2e1b302
LR		 5245
5246 rd->n_reg_rules = num_rules;
5247 rd->alpha2[0] = alpha2[0];
5248 rd->alpha2[1] = alpha2[1];
5249
8b60b078
LR		 5250 /*
5251 * Disable DFS master mode if the DFS region was
5252 * not supported or known on this kernel.
5253 */
5254 if (reg_supported_dfs_region(dfs_region))
5255 rd->dfs_region = dfs_region;
5256
b2e1b302 5257 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5258 rem_reg_rules) {
ae811e21
JB		 5259 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5260 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5261 reg_rule_policy);
5262 if (r)
5263 goto bad_reg;
b2e1b302
LR		 5264 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5265 if (r)
5266 goto bad_reg;
5267
5268 rule_idx++;
5269
d0e18f83
LR		 5270 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5271 r = -EINVAL;
b2e1b302 5272 goto bad_reg;
d0e18f83 5273 }
b2e1b302
LR		 5274 }
5275
b2e1b302 5276 r = set_regdom(rd);
6913b49a 5277 /* set_regdom took ownership */
1a919318 5278 rd = NULL;
b2e1b302 5279
d2372b31 5280 bad_reg:
b2e1b302 5281 kfree(rd);
d0e18f83 5282 return r;
b2e1b302
LR		 5283}
5284
83f5e2cf
JB		 5285static int validate_scan_freqs(struct nlattr *freqs)
5286{
5287 struct nlattr *attr1, *attr2;
5288 int n_channels = 0, tmp1, tmp2;
5289
5290 nla_for_each_nested(attr1, freqs, tmp1) {
5291 n_channels++;
5292 /*
5293 * Some hardware has a limited channel list for
5294 * scanning, and it is pretty much nonsensical
5295 * to scan for a channel twice, so disallow that
5296 * and don't require drivers to check that the
5297 * channel list they get isn't longer than what
5298 * they can scan, as long as they can scan all
5299 * the channels they registered at once.
5300 */
5301 nla_for_each_nested(attr2, freqs, tmp2)
5302 if (attr1 != attr2 &&
5303 nla_get_u32(attr1) == nla_get_u32(attr2))
5304 return 0;
5305 }
5306
5307 return n_channels;
5308}
5309
2a519311
JB		 5310static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5311{
4c476991 5312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5313 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5314 struct cfg80211_scan_request *request;
2a519311
JB		 5315 struct nlattr *attr;
5316 struct wiphy *wiphy;
83f5e2cf 5317 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5318 size_t ie_len;
2a519311 5319
f4a11bb0
JB		 5320 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5321 return -EINVAL;
5322
79c97e97 5323 wiphy = &rdev->wiphy;
2a519311 5324
4c476991
JB		 5325 if (!rdev->ops->scan)
5326 return -EOPNOTSUPP;
2a519311 5327
f9d15d16 5328 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5329 err = -EBUSY;
5330 goto unlock;
5331 }
2a519311
JB		 5332
5333 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5334 n_channels = validate_scan_freqs(
5335 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5336 if (!n_channels) {
5337 err = -EINVAL;
5338 goto unlock;
5339 }
2a519311 5340 } else {
bdfbec2d 5341 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5342 }
5343
5344 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5345 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5346 n_ssids++;
5347
f9f47529
JB		 5348 if (n_ssids > wiphy->max_scan_ssids) {
5349 err = -EINVAL;
5350 goto unlock;
5351 }
2a519311 5352
70692ad2
JM		 5353 if (info->attrs[NL80211_ATTR_IE])
5354 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5355 else
5356 ie_len = 0;
5357
f9f47529
JB		 5358 if (ie_len > wiphy->max_scan_ie_len) {
5359 err = -EINVAL;
5360 goto unlock;
5361 }
18a83659 5362
2a519311 5363 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5364 + sizeof(*request->ssids) * n_ssids
5365 + sizeof(*request->channels) * n_channels
70692ad2 5366 + ie_len, GFP_KERNEL);
f9f47529
JB		 5367 if (!request) {
5368 err = -ENOMEM;
5369 goto unlock;
5370 }
2a519311 5371
2a519311 5372 if (n_ssids)
5ba63533 5373 request->ssids = (void *)&request->channels[n_channels];
2a519311 5374 request->n_ssids = n_ssids;
70692ad2
JM		 5375 if (ie_len) {
5376 if (request->ssids)
5377 request->ie = (void *)(request->ssids + n_ssids);
5378 else
5379 request->ie = (void *)(request->channels + n_channels);
5380 }
2a519311 5381
584991dc 5382 i = 0;
2a519311
JB		 5383 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5384 /* user specified, bail out if channel not found */
2a519311 5385 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5386 struct ieee80211_channel *chan;
5387
5388 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5389
5390 if (!chan) {
2a519311
JB		 5391 err = -EINVAL;
5392 goto out_free;
5393 }
584991dc
JB		 5394
5395 /* ignore disabled channels */
5396 if (chan->flags & IEEE80211_CHAN_DISABLED)
5397 continue;
5398
5399 request->channels[i] = chan;
2a519311
JB		 5400 i++;
5401 }
5402 } else {
34850ab2
JB		 5403 enum ieee80211_band band;
5404
2a519311 5405 /* all channels */
2a519311
JB		 5406 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5407 int j;
5408 if (!wiphy->bands[band])
5409 continue;
5410 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5411 struct ieee80211_channel *chan;
5412
5413 chan = &wiphy->bands[band]->channels[j];
5414
5415 if (chan->flags & IEEE80211_CHAN_DISABLED)
5416 continue;
5417
5418 request->channels[i] = chan;
2a519311
JB		 5419 i++;
5420 }
5421 }
5422 }
5423
584991dc
JB		 5424 if (!i) {
5425 err = -EINVAL;
5426 goto out_free;
5427 }
5428
5429 request->n_channels = i;
5430
2a519311
JB		 5431 i = 0;
5432 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5433 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5434 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5435 err = -EINVAL;
5436 goto out_free;
5437 }
57a27e1d 5438 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5439 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5440 i++;
5441 }
5442 }
5443
70692ad2
JM		 5444 if (info->attrs[NL80211_ATTR_IE]) {
5445 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5446 memcpy((void *)request->ie,
5447 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5448 request->ie_len);
5449 }
5450
34850ab2 5451 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5452 if (wiphy->bands[i])
5453 request->rates[i] =
5454 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5455
5456 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5457 nla_for_each_nested(attr,
5458 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5459 tmp) {
5460 enum ieee80211_band band = nla_type(attr);
5461
84404623 5462 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5463 err = -EINVAL;
5464 goto out_free;
5465 }
1b09cd82
FF		 5466
5467 if (!wiphy->bands[band])
5468 continue;
5469
34850ab2
JB		 5470 err = ieee80211_get_ratemask(wiphy->bands[band],
5471 nla_data(attr),
5472 nla_len(attr),
5473 &request->rates[band]);
5474 if (err)
5475 goto out_free;
5476 }
5477 }
5478
46856bbf 5479 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5480 request->flags = nla_get_u32(
5481 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5482 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5483 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5484 err = -EOPNOTSUPP;
5485 goto out_free;
5486 }
5487 }
ed473771 5488
e9f935e3
RM		 5489 request->no_cck =
5490 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5491
fd014284 5492 request->wdev = wdev;
79c97e97 5493 request->wiphy = &rdev->wiphy;
15d6030b 5494 request->scan_start = jiffies;
2a519311 5495
79c97e97 5496 rdev->scan_req = request;
e35e4d28 5497 err = rdev_scan(rdev, request);
2a519311 5498
463d0183 5499 if (!err) {
fd014284
JB		 5500 nl80211_send_scan_start(rdev, wdev);
5501 if (wdev->netdev)
5502 dev_hold(wdev->netdev);
4c476991 5503 } else {
2a519311 5504 out_free:
79c97e97 5505 rdev->scan_req = NULL;
2a519311
JB		 5506 kfree(request);
5507 }
3b85875a 5508
f9f47529 5509 unlock:
2a519311
JB		 5510 return err;
5511}
5512
807f8a8c
LC		 5513static int nl80211_start_sched_scan(struct sk_buff *skb,
5514 struct genl_info *info)
5515{
5516 struct cfg80211_sched_scan_request *request;
5517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5518 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5519 struct nlattr *attr;
5520 struct wiphy *wiphy;
a1f1c21c 5521 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5522 u32 interval;
807f8a8c
LC		 5523 enum ieee80211_band band;
5524 size_t ie_len;
a1f1c21c 5525 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5526 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5527
5528 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5529 !rdev->ops->sched_scan_start)
5530 return -EOPNOTSUPP;
5531
5532 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5533 return -EINVAL;
5534
bbe6ad6d
LC		 5535 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5536 return -EINVAL;
5537
5538 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5539 if (interval == 0)
5540 return -EINVAL;
5541
807f8a8c
LC		 5542 wiphy = &rdev->wiphy;
5543
5544 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5545 n_channels = validate_scan_freqs(
5546 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5547 if (!n_channels)
5548 return -EINVAL;
5549 } else {
bdfbec2d 5550 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5551 }
5552
5553 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5554 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5555 tmp)
5556 n_ssids++;
5557
93b6aa69 5558 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5559 return -EINVAL;
5560
ea73cbce
JB		 5561 /*
5562 * First, count the number of 'real' matchsets. Due to an issue with
5563 * the old implementation, matchsets containing only the RSSI attribute
5564 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5565 * RSSI for all matchsets, rather than their own matchset for reporting
5566 * all APs with a strong RSSI. This is needed to be compatible with
5567 * older userspace that treated a matchset with only the RSSI as the
5568 * global RSSI for all other matchsets - if there are other matchsets.
5569 */
5570 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5571 nla_for_each_nested(attr,
5572 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5573 tmp) {
5574 struct nlattr *rssi;
5575
5576 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5577 nla_data(attr), nla_len(attr),
5578 nl80211_match_policy);
5579 if (err)
5580 return err;
5581 /* add other standalone attributes here */
5582 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5583 n_match_sets++;
5584 continue;
5585 }
5586 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5587 if (rssi)
5588 default_match_rssi = nla_get_s32(rssi);
5589 }
5590 }
5591
5592 /* However, if there's no other matchset, add the RSSI one */
5593 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5594 n_match_sets = 1;
a1f1c21c
LC		 5595
5596 if (n_match_sets > wiphy->max_match_sets)
5597 return -EINVAL;
5598
807f8a8c
LC		 5599 if (info->attrs[NL80211_ATTR_IE])
5600 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5601 else
5602 ie_len = 0;
5603
5a865bad 5604 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5605 return -EINVAL;
5606
c10841ca
LC		 5607 if (rdev->sched_scan_req) {
5608 err = -EINPROGRESS;
5609 goto out;
5610 }
5611
807f8a8c 5612 request = kzalloc(sizeof(*request)
a2cd43c5 5613 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5614 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5615 + sizeof(*request->channels) * n_channels
807f8a8c 5616 + ie_len, GFP_KERNEL);
c10841ca
LC		 5617 if (!request) {
5618 err = -ENOMEM;
5619 goto out;
5620 }
807f8a8c
LC		 5621
5622 if (n_ssids)
5623 request->ssids = (void *)&request->channels[n_channels];
5624 request->n_ssids = n_ssids;
5625 if (ie_len) {
5626 if (request->ssids)
5627 request->ie = (void *)(request->ssids + n_ssids);
5628 else
5629 request->ie = (void *)(request->channels + n_channels);
5630 }
5631
a1f1c21c
LC		 5632 if (n_match_sets) {
5633 if (request->ie)
5634 request->match_sets = (void *)(request->ie + ie_len);
5635 else if (request->ssids)
5636 request->match_sets =
5637 (void *)(request->ssids + n_ssids);
5638 else
5639 request->match_sets =
5640 (void *)(request->channels + n_channels);
5641 }
5642 request->n_match_sets = n_match_sets;
5643
807f8a8c
LC		 5644 i = 0;
5645 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5646 /* user specified, bail out if channel not found */
5647 nla_for_each_nested(attr,
5648 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5649 tmp) {
5650 struct ieee80211_channel *chan;
5651
5652 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5653
5654 if (!chan) {
5655 err = -EINVAL;
5656 goto out_free;
5657 }
5658
5659 /* ignore disabled channels */
5660 if (chan->flags & IEEE80211_CHAN_DISABLED)
5661 continue;
5662
5663 request->channels[i] = chan;
5664 i++;
5665 }
5666 } else {
5667 /* all channels */
5668 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5669 int j;
5670 if (!wiphy->bands[band])
5671 continue;
5672 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5673 struct ieee80211_channel *chan;
5674
5675 chan = &wiphy->bands[band]->channels[j];
5676
5677 if (chan->flags & IEEE80211_CHAN_DISABLED)
5678 continue;
5679
5680 request->channels[i] = chan;
5681 i++;
5682 }
5683 }
5684 }
5685
5686 if (!i) {
5687 err = -EINVAL;
5688 goto out_free;
5689 }
5690
5691 request->n_channels = i;
5692
5693 i = 0;
5694 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5695 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5696 tmp) {
57a27e1d 5697 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5698 err = -EINVAL;
5699 goto out_free;
5700 }
57a27e1d 5701 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5702 memcpy(request->ssids[i].ssid, nla_data(attr),
5703 nla_len(attr));
807f8a8c
LC		 5704 i++;
5705 }
5706 }
5707
a1f1c21c
LC		 5708 i = 0;
5709 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5710 nla_for_each_nested(attr,
5711 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5712 tmp) {
88e920b4 5713 struct nlattr *ssid, *rssi;
a1f1c21c 5714
ae811e21
JB		 5715 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5716 nla_data(attr), nla_len(attr),
5717 nl80211_match_policy);
5718 if (err)
5719 goto out_free;
4a4ab0d7 5720 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5721 if (ssid) {
ea73cbce
JB		 5722 if (WARN_ON(i >= n_match_sets)) {
5723 /* this indicates a programming error,
5724 * the loop above should have verified
5725 * things properly
5726 */
5727 err = -EINVAL;
5728 goto out_free;
5729 }
5730
a1f1c21c
LC		 5731 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5732 err = -EINVAL;
5733 goto out_free;
5734 }
5735 memcpy(request->match_sets[i].ssid.ssid,
5736 nla_data(ssid), nla_len(ssid));
5737 request->match_sets[i].ssid.ssid_len =
5738 nla_len(ssid);
ea73cbce
JB		 5739 /* special attribute - old implemenation w/a */
5740 request->match_sets[i].rssi_thold =
5741 default_match_rssi;
5742 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5743 if (rssi)
5744 request->match_sets[i].rssi_thold =
5745 nla_get_s32(rssi);
a1f1c21c
LC		 5746 }
5747 i++;
5748 }
ea73cbce
JB		 5749
5750 /* there was no other matchset, so the RSSI one is alone */
5751 if (i == 0)
5752 request->match_sets[0].rssi_thold = default_match_rssi;
5753
5754 request->min_rssi_thold = INT_MAX;
5755 for (i = 0; i < n_match_sets; i++)
5756 request->min_rssi_thold =
5757 min(request->match_sets[i].rssi_thold,
5758 request->min_rssi_thold);
5759 } else {
5760 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5761 }
5762
9900e484
JB		 5763 if (ie_len) {
5764 request->ie_len = ie_len;
807f8a8c
LC		 5765 memcpy((void *)request->ie,
5766 nla_data(info->attrs[NL80211_ATTR_IE]),
5767 request->ie_len);
5768 }
5769
46856bbf 5770 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5771 request->flags = nla_get_u32(
5772 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5773 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5774 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5775 err = -EOPNOTSUPP;
5776 goto out_free;
5777 }
5778 }
ed473771 5779
807f8a8c
LC		 5780 request->dev = dev;
5781 request->wiphy = &rdev->wiphy;
bbe6ad6d 5782 request->interval = interval;
15d6030b 5783 request->scan_start = jiffies;
807f8a8c 5784
e35e4d28 5785 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5786 if (!err) {
5787 rdev->sched_scan_req = request;
5788 nl80211_send_sched_scan(rdev, dev,
5789 NL80211_CMD_START_SCHED_SCAN);
5790 goto out;
5791 }
5792
5793out_free:
5794 kfree(request);
5795out:
5796 return err;
5797}
5798
5799static int nl80211_stop_sched_scan(struct sk_buff *skb,
5800 struct genl_info *info)
5801{
5802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5803
5804 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5805 !rdev->ops->sched_scan_stop)
5806 return -EOPNOTSUPP;
5807
5fe231e8 5808 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5809}
5810
04f39047
SW		 5811static int nl80211_start_radar_detection(struct sk_buff *skb,
5812 struct genl_info *info)
5813{
5814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5815 struct net_device *dev = info->user_ptr[1];
5816 struct wireless_dev *wdev = dev->ieee80211_ptr;
5817 struct cfg80211_chan_def chandef;
55f7435c 5818 enum nl80211_dfs_regions dfs_region;
31559f35 5819 unsigned int cac_time_ms;
04f39047
SW		 5820 int err;
5821
55f7435c
LR		 5822 dfs_region = reg_get_dfs_region(wdev->wiphy);
5823 if (dfs_region == NL80211_DFS_UNSET)
5824 return -EINVAL;
5825
04f39047
SW		 5826 err = nl80211_parse_chandef(rdev, info, &chandef);
5827 if (err)
5828 return err;
5829
ff311bc1
SW		 5830 if (netif_carrier_ok(dev))
5831 return -EBUSY;
5832
04f39047
SW		 5833 if (wdev->cac_started)
5834 return -EBUSY;
5835
2beb6dab 5836 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5837 wdev->iftype);
04f39047
SW		 5838 if (err < 0)
5839 return err;
5840
5841 if (err == 0)
5842 return -EINVAL;
5843
fe7c3a1f 5844 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5845 return -EINVAL;
5846
5847 if (!rdev->ops->start_radar_detection)
5848 return -EOPNOTSUPP;
5849
31559f35
JD		 5850 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5851 if (WARN_ON(!cac_time_ms))
5852 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5853
5854 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5855 cac_time_ms);
04f39047 5856 if (!err) {
9e0e2961 5857 wdev->chandef = chandef;
04f39047
SW		 5858 wdev->cac_started = true;
5859 wdev->cac_start_time = jiffies;
31559f35 5860 wdev->cac_time_ms = cac_time_ms;
04f39047 5861 }
04f39047
SW		 5862 return err;
5863}
5864
16ef1fe2
SW		 5865static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5866{
5867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5868 struct net_device *dev = info->user_ptr[1];
5869 struct wireless_dev *wdev = dev->ieee80211_ptr;
5870 struct cfg80211_csa_settings params;
5871 /* csa_attrs is defined static to avoid waste of stack size - this
5872 * function is called under RTNL lock, so this should not be a problem.
5873 */
5874 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5875 u8 radar_detect_width = 0;
5876 int err;
ee4bc9e7 5877 bool need_new_beacon = false;
9a774c78 5878 int len, i;
16ef1fe2
SW		 5879
5880 if (!rdev->ops->channel_switch ||
5881 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5882 return -EOPNOTSUPP;
5883
ee4bc9e7
SW		 5884 switch (dev->ieee80211_ptr->iftype) {
5885 case NL80211_IFTYPE_AP:
5886 case NL80211_IFTYPE_P2P_GO:
5887 need_new_beacon = true;
5888
5889 /* useless if AP is not running */
5890 if (!wdev->beacon_interval)
1ff79dfa 5891 return -ENOTCONN;
ee4bc9e7
SW		 5892 break;
5893 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5894 if (!wdev->ssid_len)
5895 return -ENOTCONN;
5896 break;
c6da674a 5897 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5898 if (!wdev->mesh_id_len)
5899 return -ENOTCONN;
ee4bc9e7
SW		 5900 break;
5901 default:
16ef1fe2 5902 return -EOPNOTSUPP;
ee4bc9e7 5903 }
16ef1fe2
SW		 5904
5905 memset(&params, 0, sizeof(params));
5906
5907 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5908 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5909 return -EINVAL;
5910
5911 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5912 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5913 return -EINVAL;
5914
5915 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5916
ee4bc9e7
SW		 5917 if (!need_new_beacon)
5918 goto skip_beacons;
5919
16ef1fe2
SW		 5920 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5921 if (err)
5922 return err;
5923
5924 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5925 info->attrs[NL80211_ATTR_CSA_IES],
5926 nl80211_policy);
5927 if (err)
5928 return err;
5929
5930 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5931 if (err)
5932 return err;
5933
5934 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5935 return -EINVAL;
5936
9a774c78
AO		 5937 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5938 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5939 return -EINVAL;
5940
9a774c78
AO		 5941 params.n_counter_offsets_beacon = len / sizeof(u16);
5942 if (rdev->wiphy.max_num_csa_counters &&
5943 (params.n_counter_offsets_beacon >
5944 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 5945 return -EINVAL;
5946
9a774c78
AO		 5947 params.counter_offsets_beacon =
5948 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5949
5950 /* sanity checks - counters should fit and be the same */
5951 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5952 u16 offset = params.counter_offsets_beacon[i];
5953
5954 if (offset >= params.beacon_csa.tail_len)
5955 return -EINVAL;
5956
5957 if (params.beacon_csa.tail[offset] != params.count)
5958 return -EINVAL;
5959 }
5960
16ef1fe2 5961 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 5962 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5963 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5964 return -EINVAL;
5965
9a774c78
AO		 5966 params.n_counter_offsets_presp = len / sizeof(u16);
5967 if (rdev->wiphy.max_num_csa_counters &&
5968 (params.n_counter_offsets_beacon >
5969 rdev->wiphy.max_num_csa_counters))
16ef1fe2 5970 return -EINVAL;
9a774c78
AO		 5971
5972 params.counter_offsets_presp =
5973 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5974
5975 /* sanity checks - counters should fit and be the same */
5976 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5977 u16 offset = params.counter_offsets_presp[i];
5978
5979 if (offset >= params.beacon_csa.probe_resp_len)
5980 return -EINVAL;
5981
5982 if (params.beacon_csa.probe_resp[offset] !=
5983 params.count)
5984 return -EINVAL;
5985 }
16ef1fe2
SW		 5986 }
5987
ee4bc9e7 5988skip_beacons:
16ef1fe2
SW		 5989 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5990 if (err)
5991 return err;
5992
174e0cd2
IP		 5993 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
5994 wdev->iftype))
16ef1fe2
SW		 5995 return -EINVAL;
5996
2beb6dab
LC		 5997 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5998 &params.chandef,
5999 wdev->iftype);
6000 if (err < 0)
6001 return err;
6002
6003 if (err > 0) {
6004 radar_detect_width = BIT(params.chandef.width);
6005 params.radar_required = true;
16ef1fe2
SW		 6006 }
6007
73de86a3
LC		 6008 /* TODO: I left this here for now. With channel switch, the
6009 * verification is a bit more complicated, because we only do
6010 * it later when the channel switch really happens.
6011 */
16ef1fe2
SW		 6012 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
6013 params.chandef.chan,
6014 CHAN_MODE_SHARED,
6015 radar_detect_width);
6016 if (err)
6017 return err;
6018
6019 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6020 params.block_tx = true;
6021
c56589ed
SW		 6022 wdev_lock(wdev);
6023 err = rdev_channel_switch(rdev, dev, &params);
6024 wdev_unlock(wdev);
6025
6026 return err;
16ef1fe2
SW		 6027}
6028
9720bb3a
JB		 6029static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6030 u32 seq, int flags,
2a519311 6031 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6032 struct wireless_dev *wdev,
6033 struct cfg80211_internal_bss *intbss)
2a519311 6034{
48ab905d 6035 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6036 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6037 void *hdr;
6038 struct nlattr *bss;
8cef2c9d 6039 bool tsf = false;
48ab905d
JB		 6040
6041 ASSERT_WDEV_LOCK(wdev);
2a519311 6042
15e47304 6043 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6044 NL80211_CMD_NEW_SCAN_RESULTS);
6045 if (!hdr)
6046 return -1;
6047
9720bb3a
JB		 6048 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6049
97990a06
JB		 6050 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6051 goto nla_put_failure;
6052 if (wdev->netdev &&
9360ffd1
DM		 6053 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6054 goto nla_put_failure;
97990a06
JB		 6055 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6056 goto nla_put_failure;
2a519311
JB		 6057
6058 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6059 if (!bss)
6060 goto nla_put_failure;
9360ffd1 6061 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6062 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6063 goto nla_put_failure;
9caf0364
JB		 6064
6065 rcu_read_lock();
6066 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6067 if (ies) {
6068 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6069 goto fail_unlock_rcu;
6070 tsf = true;
6071 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6072 ies->len, ies->data))
6073 goto fail_unlock_rcu;
9caf0364
JB		 6074 }
6075 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6076 if (ies) {
6077 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6078 goto fail_unlock_rcu;
6079 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6080 ies->len, ies->data))
6081 goto fail_unlock_rcu;
9caf0364
JB		 6082 }
6083 rcu_read_unlock();
6084
9360ffd1
DM		 6085 if (res->beacon_interval &&
6086 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6087 goto nla_put_failure;
6088 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6089 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6090 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6091 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6092 jiffies_to_msecs(jiffies - intbss->ts)))
6093 goto nla_put_failure;
2a519311 6094
77965c97 6095 switch (rdev->wiphy.signal_type) {
2a519311 6096 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6097 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6098 goto nla_put_failure;
2a519311
JB		 6099 break;
6100 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6101 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6102 goto nla_put_failure;
2a519311
JB		 6103 break;
6104 default:
6105 break;
6106 }
6107
48ab905d 6108 switch (wdev->iftype) {
074ac8df 6109 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6110 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6111 if (intbss == wdev->current_bss &&
6112 nla_put_u32(msg, NL80211_BSS_STATUS,
6113 NL80211_BSS_STATUS_ASSOCIATED))
6114 goto nla_put_failure;
48ab905d
JB		 6115 break;
6116 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6117 if (intbss == wdev->current_bss &&
6118 nla_put_u32(msg, NL80211_BSS_STATUS,
6119 NL80211_BSS_STATUS_IBSS_JOINED))
6120 goto nla_put_failure;
48ab905d
JB		 6121 break;
6122 default:
6123 break;
6124 }
6125
2a519311
JB		 6126 nla_nest_end(msg, bss);
6127
6128 return genlmsg_end(msg, hdr);
6129
8cef2c9d
JB		 6130 fail_unlock_rcu:
6131 rcu_read_unlock();
2a519311
JB		 6132 nla_put_failure:
6133 genlmsg_cancel(msg, hdr);
6134 return -EMSGSIZE;
6135}
6136
97990a06 6137static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6138{
48ab905d 6139 struct cfg80211_registered_device *rdev;
2a519311 6140 struct cfg80211_internal_bss *scan;
48ab905d 6141 struct wireless_dev *wdev;
97990a06 6142 int start = cb->args[2], idx = 0;
2a519311
JB		 6143 int err;
6144
97990a06 6145 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6146 if (err)
6147 return err;
2a519311 6148
48ab905d
JB		 6149 wdev_lock(wdev);
6150 spin_lock_bh(&rdev->bss_lock);
6151 cfg80211_bss_expire(rdev);
6152
9720bb3a
JB		 6153 cb->seq = rdev->bss_generation;
6154
48ab905d 6155 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6156 if (++idx <= start)
6157 continue;
9720bb3a 6158 if (nl80211_send_bss(skb, cb,
2a519311 6159 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6160 rdev, wdev, scan) < 0) {
2a519311 6161 idx--;
67748893 6162 break;
2a519311
JB		 6163 }
6164 }
6165
48ab905d
JB		 6166 spin_unlock_bh(&rdev->bss_lock);
6167 wdev_unlock(wdev);
2a519311 6168
97990a06
JB		 6169 cb->args[2] = idx;
6170 nl80211_finish_wdev_dump(rdev);
2a519311 6171
67748893 6172 return skb->len;
2a519311
JB		 6173}
6174
15e47304 6175static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6176 int flags, struct net_device *dev,
6177 struct survey_info *survey)
6178{
6179 void *hdr;
6180 struct nlattr *infoattr;
6181
15e47304 6182 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6183 NL80211_CMD_NEW_SURVEY_RESULTS);
6184 if (!hdr)
6185 return -ENOMEM;
6186
9360ffd1
DM		 6187 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6188 goto nla_put_failure;
61fa713c
HS		 6189
6190 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6191 if (!infoattr)
6192 goto nla_put_failure;
6193
9360ffd1
DM		 6194 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6195 survey->channel->center_freq))
6196 goto nla_put_failure;
6197
6198 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6199 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6200 goto nla_put_failure;
6201 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6202 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6203 goto nla_put_failure;
6204 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6205 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6206 survey->channel_time))
6207 goto nla_put_failure;
6208 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6209 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6210 survey->channel_time_busy))
6211 goto nla_put_failure;
6212 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6213 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6214 survey->channel_time_ext_busy))
6215 goto nla_put_failure;
6216 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6217 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6218 survey->channel_time_rx))
6219 goto nla_put_failure;
6220 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6221 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6222 survey->channel_time_tx))
6223 goto nla_put_failure;
61fa713c
HS		 6224
6225 nla_nest_end(msg, infoattr);
6226
6227 return genlmsg_end(msg, hdr);
6228
6229 nla_put_failure:
6230 genlmsg_cancel(msg, hdr);
6231 return -EMSGSIZE;
6232}
6233
6234static int nl80211_dump_survey(struct sk_buff *skb,
6235 struct netlink_callback *cb)
6236{
6237 struct survey_info survey;
1b8ec87a 6238 struct cfg80211_registered_device *rdev;
97990a06
JB		 6239 struct wireless_dev *wdev;
6240 int survey_idx = cb->args[2];
61fa713c
HS		 6241 int res;
6242
1b8ec87a 6243 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6244 if (res)
6245 return res;
61fa713c 6246
97990a06
JB		 6247 if (!wdev->netdev) {
6248 res = -EINVAL;
6249 goto out_err;
6250 }
6251
1b8ec87a 6252 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6253 res = -EOPNOTSUPP;
6254 goto out_err;
6255 }
6256
6257 while (1) {
180cdc79
LR		 6258 struct ieee80211_channel *chan;
6259
1b8ec87a 6260 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6261 if (res == -ENOENT)
6262 break;
6263 if (res)
6264 goto out_err;
6265
180cdc79
LR		 6266 /* Survey without a channel doesn't make sense */
6267 if (!survey.channel) {
6268 res = -EINVAL;
6269 goto out;
6270 }
6271
1b8ec87a 6272 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6273 survey.channel->center_freq);
6274 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6275 survey_idx++;
6276 continue;
6277 }
6278
61fa713c 6279 if (nl80211_send_survey(skb,
15e47304 6280 NETLINK_CB(cb->skb).portid,
61fa713c 6281 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6282 wdev->netdev, &survey) < 0)
61fa713c
HS		 6283 goto out;
6284 survey_idx++;
6285 }
6286
6287 out:
97990a06 6288 cb->args[2] = survey_idx;
61fa713c
HS		 6289 res = skb->len;
6290 out_err:
1b8ec87a 6291 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6292 return res;
6293}
6294
b23aa676
SO		 6295static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6296{
6297 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6298 NL80211_WPA_VERSION_2));
6299}
6300
636a5d36
JM		 6301static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6302{
4c476991
JB		 6303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6304 struct net_device *dev = info->user_ptr[1];
19957bb3 6305 struct ieee80211_channel *chan;
e39e5b5e
JM		 6306 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6307 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6308 enum nl80211_auth_type auth_type;
fffd0934 6309 struct key_parse key;
d5cdfacb 6310 bool local_state_change;
636a5d36 6311
f4a11bb0
JB		 6312 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6313 return -EINVAL;
6314
6315 if (!info->attrs[NL80211_ATTR_MAC])
6316 return -EINVAL;
6317
1778092e
JM		 6318 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6319 return -EINVAL;
6320
19957bb3
JB		 6321 if (!info->attrs[NL80211_ATTR_SSID])
6322 return -EINVAL;
6323
6324 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6325 return -EINVAL;
6326
fffd0934
JB		 6327 err = nl80211_parse_key(info, &key);
6328 if (err)
6329 return err;
6330
6331 if (key.idx >= 0) {
e31b8213
JB		 6332 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6333 return -EINVAL;
fffd0934
JB		 6334 if (!key.p.key || !key.p.key_len)
6335 return -EINVAL;
6336 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6337 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6338 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6339 key.p.key_len != WLAN_KEY_LEN_WEP104))
6340 return -EINVAL;
6341 if (key.idx > 4)
6342 return -EINVAL;
6343 } else {
6344 key.p.key_len = 0;
6345 key.p.key = NULL;
6346 }
6347
afea0b7a
JB		 6348 if (key.idx >= 0) {
6349 int i;
6350 bool ok = false;
6351 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6352 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6353 ok = true;
6354 break;
6355 }
6356 }
4c476991
JB		 6357 if (!ok)
6358 return -EINVAL;
afea0b7a
JB		 6359 }
6360
4c476991
JB		 6361 if (!rdev->ops->auth)
6362 return -EOPNOTSUPP;
636a5d36 6363
074ac8df 6364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6366 return -EOPNOTSUPP;
eec60b03 6367
19957bb3 6368 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6369 chan = nl80211_get_valid_chan(&rdev->wiphy,
6370 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6371 if (!chan)
4c476991 6372 return -EINVAL;
636a5d36 6373
19957bb3
JB		 6374 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6375 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6376
6377 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6378 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6379 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6380 }
6381
19957bb3 6382 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6383 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6384 return -EINVAL;
636a5d36 6385
e39e5b5e
JM		 6386 if (auth_type == NL80211_AUTHTYPE_SAE &&
6387 !info->attrs[NL80211_ATTR_SAE_DATA])
6388 return -EINVAL;
6389
6390 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6391 if (auth_type != NL80211_AUTHTYPE_SAE)
6392 return -EINVAL;
6393 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6394 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6395 /* need to include at least Auth Transaction and Status Code */
6396 if (sae_data_len < 4)
6397 return -EINVAL;
6398 }
6399
d5cdfacb
JM		 6400 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6401
95de817b
JB		 6402 /*
6403 * Since we no longer track auth state, ignore
6404 * requests to only change local state.
6405 */
6406 if (local_state_change)
6407 return 0;
6408
91bf9b26
JB		 6409 wdev_lock(dev->ieee80211_ptr);
6410 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6411 ssid, ssid_len, ie, ie_len,
6412 key.p.key, key.p.key_len, key.idx,
6413 sae_data, sae_data_len);
6414 wdev_unlock(dev->ieee80211_ptr);
6415 return err;
636a5d36
JM		 6416}
6417
c0692b8f
JB		 6418static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6419 struct genl_info *info,
3dc27d25
JB		 6420 struct cfg80211_crypto_settings *settings,
6421 int cipher_limit)
b23aa676 6422{
c0b2bbd8
JB		 6423 memset(settings, 0, sizeof(*settings));
6424
b23aa676
SO		 6425 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6426
c0692b8f
JB		 6427 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6428 u16 proto;
6429 proto = nla_get_u16(
6430 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6431 settings->control_port_ethertype = cpu_to_be16(proto);
6432 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6433 proto != ETH_P_PAE)
6434 return -EINVAL;
6435 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6436 settings->control_port_no_encrypt = true;
6437 } else
6438 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6439
b23aa676
SO		 6440 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6441 void *data;
6442 int len, i;
6443
6444 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6445 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6446 settings->n_ciphers_pairwise = len / sizeof(u32);
6447
6448 if (len % sizeof(u32))
6449 return -EINVAL;
6450
3dc27d25 6451 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6452 return -EINVAL;
6453
6454 memcpy(settings->ciphers_pairwise, data, len);
6455
6456 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6457 if (!cfg80211_supported_cipher_suite(
6458 &rdev->wiphy,
b23aa676
SO		 6459 settings->ciphers_pairwise[i]))
6460 return -EINVAL;
6461 }
6462
6463 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6464 settings->cipher_group =
6465 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6466 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6467 settings->cipher_group))
b23aa676
SO		 6468 return -EINVAL;
6469 }
6470
6471 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6472 settings->wpa_versions =
6473 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6474 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6475 return -EINVAL;
6476 }
6477
6478 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6479 void *data;
6d30240e 6480 int len;
b23aa676
SO		 6481
6482 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6483 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6484 settings->n_akm_suites = len / sizeof(u32);
6485
6486 if (len % sizeof(u32))
6487 return -EINVAL;
6488
1b9ca027
JM		 6489 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6490 return -EINVAL;
6491
b23aa676 6492 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6493 }
6494
6495 return 0;
6496}
6497
636a5d36
JM		 6498static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6499{
4c476991
JB		 6500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6501 struct net_device *dev = info->user_ptr[1];
f444de05 6502 struct ieee80211_channel *chan;
f62fab73
JB		 6503 struct cfg80211_assoc_request req = {};
6504 const u8 *bssid, *ssid;
6505 int err, ssid_len = 0;
636a5d36 6506
f4a11bb0
JB		 6507 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6508 return -EINVAL;
6509
6510 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6511 !info->attrs[NL80211_ATTR_SSID] ||
6512 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6513 return -EINVAL;
6514
4c476991
JB		 6515 if (!rdev->ops->assoc)
6516 return -EOPNOTSUPP;
636a5d36 6517
074ac8df 6518 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6519 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6520 return -EOPNOTSUPP;
eec60b03 6521
19957bb3 6522 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6523
664834de
JM		 6524 chan = nl80211_get_valid_chan(&rdev->wiphy,
6525 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6526 if (!chan)
4c476991 6527 return -EINVAL;
636a5d36 6528
19957bb3
JB		 6529 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6530 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6531
6532 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6533 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6534 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6535 }
6536
dc6382ce 6537 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6538 enum nl80211_mfp mfp =
dc6382ce 6539 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6540 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6541 req.use_mfp = true;
4c476991
JB		 6542 else if (mfp != NL80211_MFP_NO)
6543 return -EINVAL;
dc6382ce
JM		 6544 }
6545
3e5d7649 6546 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6547 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6548
7e7c8926 6549 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6550 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6551
6552 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6553 memcpy(&req.ht_capa_mask,
6554 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6555 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6556
6557 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6558 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6559 return -EINVAL;
f62fab73
JB		 6560 memcpy(&req.ht_capa,
6561 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6562 sizeof(req.ht_capa));
7e7c8926
BG		 6563 }
6564
ee2aca34 6565 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6566 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6567
6568 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6569 memcpy(&req.vht_capa_mask,
6570 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6571 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6572
6573 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6574 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6575 return -EINVAL;
f62fab73
JB		 6576 memcpy(&req.vht_capa,
6577 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6578 sizeof(req.vht_capa));
ee2aca34
JB		 6579 }
6580
f62fab73 6581 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6582 if (!err) {
6583 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6584 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6585 ssid, ssid_len, &req);
91bf9b26
JB		 6586 wdev_unlock(dev->ieee80211_ptr);
6587 }
636a5d36 6588
636a5d36
JM		 6589 return err;
6590}
6591
6592static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6593{
4c476991
JB		 6594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6595 struct net_device *dev = info->user_ptr[1];
19957bb3 6596 const u8 *ie = NULL, *bssid;
91bf9b26 6597 int ie_len = 0, err;
19957bb3 6598 u16 reason_code;
d5cdfacb 6599 bool local_state_change;
636a5d36 6600
f4a11bb0
JB		 6601 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6602 return -EINVAL;
6603
6604 if (!info->attrs[NL80211_ATTR_MAC])
6605 return -EINVAL;
6606
6607 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6608 return -EINVAL;
6609
4c476991
JB		 6610 if (!rdev->ops->deauth)
6611 return -EOPNOTSUPP;
636a5d36 6612
074ac8df 6613 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6614 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6615 return -EOPNOTSUPP;
eec60b03 6616
19957bb3 6617 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6618
19957bb3
JB		 6619 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6620 if (reason_code == 0) {
f4a11bb0 6621 /* Reason Code 0 is reserved */
4c476991 6622 return -EINVAL;
255e737e 6623 }
636a5d36
JM		 6624
6625 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6626 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6627 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6628 }
6629
d5cdfacb
JM		 6630 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6631
91bf9b26
JB		 6632 wdev_lock(dev->ieee80211_ptr);
6633 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6634 local_state_change);
6635 wdev_unlock(dev->ieee80211_ptr);
6636 return err;
636a5d36
JM		 6637}
6638
6639static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6640{
4c476991
JB		 6641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6642 struct net_device *dev = info->user_ptr[1];
19957bb3 6643 const u8 *ie = NULL, *bssid;
91bf9b26 6644 int ie_len = 0, err;
19957bb3 6645 u16 reason_code;
d5cdfacb 6646 bool local_state_change;
636a5d36 6647
f4a11bb0
JB		 6648 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6649 return -EINVAL;
6650
6651 if (!info->attrs[NL80211_ATTR_MAC])
6652 return -EINVAL;
6653
6654 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6655 return -EINVAL;
6656
4c476991
JB		 6657 if (!rdev->ops->disassoc)
6658 return -EOPNOTSUPP;
636a5d36 6659
074ac8df 6660 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6661 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6662 return -EOPNOTSUPP;
eec60b03 6663
19957bb3 6664 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6665
19957bb3
JB		 6666 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6667 if (reason_code == 0) {
f4a11bb0 6668 /* Reason Code 0 is reserved */
4c476991 6669 return -EINVAL;
255e737e 6670 }
636a5d36
JM		 6671
6672 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6673 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6674 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6675 }
6676
d5cdfacb
JM		 6677 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6678
91bf9b26
JB		 6679 wdev_lock(dev->ieee80211_ptr);
6680 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6681 local_state_change);
6682 wdev_unlock(dev->ieee80211_ptr);
6683 return err;
636a5d36
JM		 6684}
6685
dd5b4cc7
FF		 6686static bool
6687nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6688 int mcast_rate[IEEE80211_NUM_BANDS],
6689 int rateval)
6690{
6691 struct wiphy *wiphy = &rdev->wiphy;
6692 bool found = false;
6693 int band, i;
6694
6695 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6696 struct ieee80211_supported_band *sband;
6697
6698 sband = wiphy->bands[band];
6699 if (!sband)
6700 continue;
6701
6702 for (i = 0; i < sband->n_bitrates; i++) {
6703 if (sband->bitrates[i].bitrate == rateval) {
6704 mcast_rate[band] = i + 1;
6705 found = true;
6706 break;
6707 }
6708 }
6709 }
6710
6711 return found;
6712}
6713
04a773ad
JB		 6714static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6715{
4c476991
JB		 6716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6717 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6718 struct cfg80211_ibss_params ibss;
6719 struct wiphy *wiphy;
fffd0934 6720 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6721 int err;
6722
8e30bc55
JB		 6723 memset(&ibss, 0, sizeof(ibss));
6724
04a773ad
JB		 6725 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6726 return -EINVAL;
6727
683b6d3b 6728 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6729 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6730 return -EINVAL;
6731
8e30bc55
JB		 6732 ibss.beacon_interval = 100;
6733
6734 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6735 ibss.beacon_interval =
6736 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6737 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6738 return -EINVAL;
6739 }
6740
4c476991
JB		 6741 if (!rdev->ops->join_ibss)
6742 return -EOPNOTSUPP;
04a773ad 6743
4c476991
JB		 6744 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6745 return -EOPNOTSUPP;
04a773ad 6746
79c97e97 6747 wiphy = &rdev->wiphy;
04a773ad 6748
39193498 6749 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6750 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6751
6752 if (!is_valid_ether_addr(ibss.bssid))
6753 return -EINVAL;
6754 }
04a773ad
JB		 6755 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6756 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6757
6758 if (info->attrs[NL80211_ATTR_IE]) {
6759 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6760 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6761 }
6762
683b6d3b
JB		 6763 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6764 if (err)
6765 return err;
04a773ad 6766
174e0cd2
IP		 6767 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6768 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6769 return -EINVAL;
6770
2f301ab2 6771 switch (ibss.chandef.width) {
bf372645
SW		 6772 case NL80211_CHAN_WIDTH_5:
6773 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6774 case NL80211_CHAN_WIDTH_20_NOHT:
6775 break;
6776 case NL80211_CHAN_WIDTH_20:
6777 case NL80211_CHAN_WIDTH_40:
6778 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6779 break;
6780 default:
c04d6150 6781 return -EINVAL;
2f301ab2 6782 }
db9c64cf 6783
04a773ad 6784 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6785 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6786
fbd2c8dc
TP		 6787 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6788 u8 *rates =
6789 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6790 int n_rates =
6791 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6792 struct ieee80211_supported_band *sband =
683b6d3b 6793 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6794
34850ab2
JB		 6795 err = ieee80211_get_ratemask(sband, rates, n_rates,
6796 &ibss.basic_rates);
6797 if (err)
6798 return err;
fbd2c8dc 6799 }
dd5b4cc7 6800
803768f5
SW		 6801 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6802 memcpy(&ibss.ht_capa_mask,
6803 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6804 sizeof(ibss.ht_capa_mask));
6805
6806 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6807 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6808 return -EINVAL;
6809 memcpy(&ibss.ht_capa,
6810 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6811 sizeof(ibss.ht_capa));
6812 }
6813
dd5b4cc7
FF		 6814 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6815 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6816 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6817 return -EINVAL;
fbd2c8dc 6818
4c476991 6819 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6820 bool no_ht = false;
6821
4c476991 6822 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6823 info->attrs[NL80211_ATTR_KEYS],
6824 &no_ht);
4c476991
JB		 6825 if (IS_ERR(connkeys))
6826 return PTR_ERR(connkeys);
de7044ee 6827
3d9d1d66
JB		 6828 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6829 no_ht) {
de7044ee
SM		 6830 kfree(connkeys);
6831 return -EINVAL;
6832 }
4c476991 6833 }
04a773ad 6834
267335d6
AQ		 6835 ibss.control_port =
6836 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6837
5336fa88
SW		 6838 ibss.userspace_handles_dfs =
6839 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6840
4c476991 6841 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6842 if (err)
6843 kfree(connkeys);
04a773ad
JB		 6844 return err;
6845}
6846
6847static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6848{
4c476991
JB		 6849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6850 struct net_device *dev = info->user_ptr[1];
04a773ad 6851
4c476991
JB		 6852 if (!rdev->ops->leave_ibss)
6853 return -EOPNOTSUPP;
04a773ad 6854
4c476991
JB		 6855 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6856 return -EOPNOTSUPP;
04a773ad 6857
4c476991 6858 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6859}
6860
f4e583c8
AQ		 6861static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6862{
6863 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6864 struct net_device *dev = info->user_ptr[1];
6865 int mcast_rate[IEEE80211_NUM_BANDS];
6866 u32 nla_rate;
6867 int err;
6868
6869 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6870 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6871 return -EOPNOTSUPP;
6872
6873 if (!rdev->ops->set_mcast_rate)
6874 return -EOPNOTSUPP;
6875
6876 memset(mcast_rate, 0, sizeof(mcast_rate));
6877
6878 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6879 return -EINVAL;
6880
6881 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6882 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6883 return -EINVAL;
6884
6885 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6886
6887 return err;
6888}
6889
ad7e718c
JB		 6890static struct sk_buff *
6891__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6892 int approxlen, u32 portid, u32 seq,
6893 enum nl80211_commands cmd,
567ffc35
JB		 6894 enum nl80211_attrs attr,
6895 const struct nl80211_vendor_cmd_info *info,
6896 gfp_t gfp)
ad7e718c
JB		 6897{
6898 struct sk_buff *skb;
6899 void *hdr;
6900 struct nlattr *data;
6901
6902 skb = nlmsg_new(approxlen + 100, gfp);
6903 if (!skb)
6904 return NULL;
6905
6906 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6907 if (!hdr) {
6908 kfree_skb(skb);
6909 return NULL;
6910 }
6911
6912 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6913 goto nla_put_failure;
567ffc35
JB		 6914
6915 if (info) {
6916 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6917 info->vendor_id))
6918 goto nla_put_failure;
6919 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6920 info->subcmd))
6921 goto nla_put_failure;
6922 }
6923
ad7e718c
JB		 6924 data = nla_nest_start(skb, attr);
6925
6926 ((void **)skb->cb)[0] = rdev;
6927 ((void **)skb->cb)[1] = hdr;
6928 ((void **)skb->cb)[2] = data;
6929
6930 return skb;
6931
6932 nla_put_failure:
6933 kfree_skb(skb);
6934 return NULL;
6935}
f4e583c8 6936
e03ad6ea
JB		 6937struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6938 enum nl80211_commands cmd,
6939 enum nl80211_attrs attr,
6940 int vendor_event_idx,
6941 int approxlen, gfp_t gfp)
6942{
f26cbf40 6943 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6944 const struct nl80211_vendor_cmd_info *info;
6945
6946 switch (cmd) {
6947 case NL80211_CMD_TESTMODE:
6948 if (WARN_ON(vendor_event_idx != -1))
6949 return NULL;
6950 info = NULL;
6951 break;
6952 case NL80211_CMD_VENDOR:
6953 if (WARN_ON(vendor_event_idx < 0 ||
6954 vendor_event_idx >= wiphy->n_vendor_events))
6955 return NULL;
6956 info = &wiphy->vendor_events[vendor_event_idx];
6957 break;
6958 default:
6959 WARN_ON(1);
6960 return NULL;
6961 }
6962
6963 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6964 cmd, attr, info, gfp);
6965}
6966EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6967
6968void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6969{
6970 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6971 void *hdr = ((void **)skb->cb)[1];
6972 struct nlattr *data = ((void **)skb->cb)[2];
6973 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6974
6975 nla_nest_end(skb, data);
6976 genlmsg_end(skb, hdr);
6977
6978 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6979 mcgrp = NL80211_MCGRP_VENDOR;
6980
6981 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6982 mcgrp, gfp);
6983}
6984EXPORT_SYMBOL(__cfg80211_send_event_skb);
6985
aff89a9b 6986#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6987static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6988{
4c476991 6989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6990 struct wireless_dev *wdev =
6991 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6992 int err;
6993
fc73f11f
DS		 6994 if (!rdev->ops->testmode_cmd)
6995 return -EOPNOTSUPP;
6996
6997 if (IS_ERR(wdev)) {
6998 err = PTR_ERR(wdev);
6999 if (err != -EINVAL)
7000 return err;
7001 wdev = NULL;
7002 } else if (wdev->wiphy != &rdev->wiphy) {
7003 return -EINVAL;
7004 }
7005
aff89a9b
JB		 7006 if (!info->attrs[NL80211_ATTR_TESTDATA])
7007 return -EINVAL;
7008
ad7e718c 7009 rdev->cur_cmd_info = info;
fc73f11f 7010 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7011 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7012 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7013 rdev->cur_cmd_info = NULL;
aff89a9b 7014
aff89a9b
JB		 7015 return err;
7016}
7017
71063f0e
WYG		 7018static int nl80211_testmode_dump(struct sk_buff *skb,
7019 struct netlink_callback *cb)
7020{
00918d33 7021 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7022 int err;
7023 long phy_idx;
7024 void *data = NULL;
7025 int data_len = 0;
7026
5fe231e8
JB		 7027 rtnl_lock();
7028
71063f0e
WYG		 7029 if (cb->args[0]) {
7030 /*
7031 * 0 is a valid index, but not valid for args[0],
7032 * so we need to offset by 1.
7033 */
7034 phy_idx = cb->args[0] - 1;
7035 } else {
7036 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7037 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7038 nl80211_policy);
7039 if (err)
5fe231e8 7040 goto out_err;
00918d33 7041
2bd7e35d
JB		 7042 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7043 nl80211_fam.attrbuf);
7044 if (IS_ERR(rdev)) {
5fe231e8
JB		 7045 err = PTR_ERR(rdev);
7046 goto out_err;
00918d33 7047 }
2bd7e35d
JB		 7048 phy_idx = rdev->wiphy_idx;
7049 rdev = NULL;
2bd7e35d 7050
71063f0e
WYG		 7051 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7052 cb->args[1] =
7053 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7054 }
7055
7056 if (cb->args[1]) {
7057 data = nla_data((void *)cb->args[1]);
7058 data_len = nla_len((void *)cb->args[1]);
7059 }
7060
00918d33
JB		 7061 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7062 if (!rdev) {
5fe231e8
JB		 7063 err = -ENOENT;
7064 goto out_err;
71063f0e 7065 }
71063f0e 7066
00918d33 7067 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7068 err = -EOPNOTSUPP;
7069 goto out_err;
7070 }
7071
7072 while (1) {
15e47304 7073 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7074 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7075 NL80211_CMD_TESTMODE);
7076 struct nlattr *tmdata;
7077
cb35fba3
DC		 7078 if (!hdr)
7079 break;
7080
9360ffd1 7081 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7082 genlmsg_cancel(skb, hdr);
7083 break;
7084 }
7085
7086 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7087 if (!tmdata) {
7088 genlmsg_cancel(skb, hdr);
7089 break;
7090 }
e35e4d28 7091 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7092 nla_nest_end(skb, tmdata);
7093
7094 if (err == -ENOBUFS || err == -ENOENT) {
7095 genlmsg_cancel(skb, hdr);
7096 break;
7097 } else if (err) {
7098 genlmsg_cancel(skb, hdr);
7099 goto out_err;
7100 }
7101
7102 genlmsg_end(skb, hdr);
7103 }
7104
7105 err = skb->len;
7106 /* see above */
7107 cb->args[0] = phy_idx + 1;
7108 out_err:
5fe231e8 7109 rtnl_unlock();
71063f0e
WYG		 7110 return err;
7111}
aff89a9b
JB		 7112#endif
7113
b23aa676
SO		 7114static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7115{
4c476991
JB		 7116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7117 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7118 struct cfg80211_connect_params connect;
7119 struct wiphy *wiphy;
fffd0934 7120 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7121 int err;
7122
7123 memset(&connect, 0, sizeof(connect));
7124
7125 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7126 return -EINVAL;
7127
7128 if (!info->attrs[NL80211_ATTR_SSID] ||
7129 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7130 return -EINVAL;
7131
7132 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7133 connect.auth_type =
7134 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7135 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7136 NL80211_CMD_CONNECT))
b23aa676
SO		 7137 return -EINVAL;
7138 } else
7139 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7140
7141 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7142
c0692b8f 7143 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7144 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7145 if (err)
7146 return err;
b23aa676 7147
074ac8df 7148 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7149 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7150 return -EOPNOTSUPP;
b23aa676 7151
79c97e97 7152 wiphy = &rdev->wiphy;
b23aa676 7153
4486ea98
BS		 7154 connect.bg_scan_period = -1;
7155 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7156 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7157 connect.bg_scan_period =
7158 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7159 }
7160
b23aa676
SO		 7161 if (info->attrs[NL80211_ATTR_MAC])
7162 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7163 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7164 connect.bssid_hint =
7165 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7166 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7167 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7168
7169 if (info->attrs[NL80211_ATTR_IE]) {
7170 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7171 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7172 }
7173
cee00a95
JM		 7174 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7175 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7176 if (connect.mfp != NL80211_MFP_REQUIRED &&
7177 connect.mfp != NL80211_MFP_NO)
7178 return -EINVAL;
7179 } else {
7180 connect.mfp = NL80211_MFP_NO;
7181 }
7182
b23aa676 7183 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7184 connect.channel = nl80211_get_valid_chan(
7185 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7186 if (!connect.channel)
1df4a510
JM		 7187 return -EINVAL;
7188 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7189 connect.channel_hint = nl80211_get_valid_chan(
7190 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7191 if (!connect.channel_hint)
4c476991 7192 return -EINVAL;
b23aa676
SO		 7193 }
7194
fffd0934
JB		 7195 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7196 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7197 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7198 if (IS_ERR(connkeys))
7199 return PTR_ERR(connkeys);
fffd0934
JB		 7200 }
7201
7e7c8926
BG		 7202 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7203 connect.flags |= ASSOC_REQ_DISABLE_HT;
7204
7205 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7206 memcpy(&connect.ht_capa_mask,
7207 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7208 sizeof(connect.ht_capa_mask));
7209
7210 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7211 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7212 kfree(connkeys);
7e7c8926 7213 return -EINVAL;
b4e4f47e 7214 }
7e7c8926
BG		 7215 memcpy(&connect.ht_capa,
7216 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7217 sizeof(connect.ht_capa));
7218 }
7219
ee2aca34
JB		 7220 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7221 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7222
7223 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7224 memcpy(&connect.vht_capa_mask,
7225 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7226 sizeof(connect.vht_capa_mask));
7227
7228 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7229 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7230 kfree(connkeys);
7231 return -EINVAL;
7232 }
7233 memcpy(&connect.vht_capa,
7234 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7235 sizeof(connect.vht_capa));
7236 }
7237
83739b03
JB		 7238 wdev_lock(dev->ieee80211_ptr);
7239 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7240 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7241 if (err)
7242 kfree(connkeys);
b23aa676
SO		 7243 return err;
7244}
7245
7246static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7247{
4c476991
JB		 7248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7249 struct net_device *dev = info->user_ptr[1];
b23aa676 7250 u16 reason;
83739b03 7251 int ret;
b23aa676
SO		 7252
7253 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7254 reason = WLAN_REASON_DEAUTH_LEAVING;
7255 else
7256 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7257
7258 if (reason == 0)
7259 return -EINVAL;
7260
074ac8df 7261 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7262 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7263 return -EOPNOTSUPP;
b23aa676 7264
83739b03
JB		 7265 wdev_lock(dev->ieee80211_ptr);
7266 ret = cfg80211_disconnect(rdev, dev, reason, true);
7267 wdev_unlock(dev->ieee80211_ptr);
7268 return ret;
b23aa676
SO		 7269}
7270
463d0183
JB		 7271static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7272{
4c476991 7273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7274 struct net *net;
7275 int err;
7276 u32 pid;
7277
7278 if (!info->attrs[NL80211_ATTR_PID])
7279 return -EINVAL;
7280
7281 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7282
463d0183 7283 net = get_net_ns_by_pid(pid);
4c476991
JB		 7284 if (IS_ERR(net))
7285 return PTR_ERR(net);
463d0183
JB		 7286
7287 err = 0;
7288
7289 /* check if anything to do */
4c476991
JB		 7290 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7291 err = cfg80211_switch_netns(rdev, net);
463d0183 7292
463d0183 7293 put_net(net);
463d0183
JB		 7294 return err;
7295}
7296
67fbb16b
SO		 7297static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7298{
4c476991 7299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7300 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7301 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7302 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7303 struct cfg80211_pmksa pmksa;
7304
7305 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7306
7307 if (!info->attrs[NL80211_ATTR_MAC])
7308 return -EINVAL;
7309
7310 if (!info->attrs[NL80211_ATTR_PMKID])
7311 return -EINVAL;
7312
67fbb16b
SO		 7313 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7314 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7315
074ac8df 7316 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7317 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7318 return -EOPNOTSUPP;
67fbb16b
SO		 7319
7320 switch (info->genlhdr->cmd) {
7321 case NL80211_CMD_SET_PMKSA:
7322 rdev_ops = rdev->ops->set_pmksa;
7323 break;
7324 case NL80211_CMD_DEL_PMKSA:
7325 rdev_ops = rdev->ops->del_pmksa;
7326 break;
7327 default:
7328 WARN_ON(1);
7329 break;
7330 }
7331
4c476991
JB		 7332 if (!rdev_ops)
7333 return -EOPNOTSUPP;
67fbb16b 7334
4c476991 7335 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7336}
7337
7338static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7339{
4c476991
JB		 7340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7341 struct net_device *dev = info->user_ptr[1];
67fbb16b 7342
074ac8df 7343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7345 return -EOPNOTSUPP;
67fbb16b 7346
4c476991
JB		 7347 if (!rdev->ops->flush_pmksa)
7348 return -EOPNOTSUPP;
67fbb16b 7349
e35e4d28 7350 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7351}
7352
109086ce
AN		 7353static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7354{
7355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7356 struct net_device *dev = info->user_ptr[1];
7357 u8 action_code, dialog_token;
df942e7b 7358 u32 peer_capability = 0;
109086ce
AN		 7359 u16 status_code;
7360 u8 *peer;
7361
7362 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7363 !rdev->ops->tdls_mgmt)
7364 return -EOPNOTSUPP;
7365
7366 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7367 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7368 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7369 !info->attrs[NL80211_ATTR_IE] ||
7370 !info->attrs[NL80211_ATTR_MAC])
7371 return -EINVAL;
7372
7373 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7374 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7375 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7376 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7377 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7378 peer_capability =
7379 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7380
e35e4d28 7381 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7382 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7383 nla_data(info->attrs[NL80211_ATTR_IE]),
7384 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7385}
7386
7387static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7388{
7389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7390 struct net_device *dev = info->user_ptr[1];
7391 enum nl80211_tdls_operation operation;
7392 u8 *peer;
7393
7394 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7395 !rdev->ops->tdls_oper)
7396 return -EOPNOTSUPP;
7397
7398 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7399 !info->attrs[NL80211_ATTR_MAC])
7400 return -EINVAL;
7401
7402 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7403 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7404
e35e4d28 7405 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7406}
7407
9588bbd5
JM		 7408static int nl80211_remain_on_channel(struct sk_buff *skb,
7409 struct genl_info *info)
7410{
4c476991 7411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7412 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7413 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7414 struct sk_buff *msg;
7415 void *hdr;
7416 u64 cookie;
683b6d3b 7417 u32 duration;
9588bbd5
JM		 7418 int err;
7419
7420 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7421 !info->attrs[NL80211_ATTR_DURATION])
7422 return -EINVAL;
7423
7424 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7425
ebf348fc
JB		 7426 if (!rdev->ops->remain_on_channel ||
7427 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7428 return -EOPNOTSUPP;
7429
9588bbd5 7430 /*
ebf348fc
JB		 7431 * We should be on that channel for at least a minimum amount of
7432 * time (10ms) but no longer than the driver supports.
9588bbd5 7433 */
ebf348fc 7434 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7435 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7436 return -EINVAL;
7437
683b6d3b
JB		 7438 err = nl80211_parse_chandef(rdev, info, &chandef);
7439 if (err)
7440 return err;
9588bbd5
JM		 7441
7442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7443 if (!msg)
7444 return -ENOMEM;
9588bbd5 7445
15e47304 7446 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7447 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7448 if (!hdr) {
7449 err = -ENOBUFS;
9588bbd5
JM		 7450 goto free_msg;
7451 }
7452
683b6d3b
JB		 7453 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7454 duration, &cookie);
9588bbd5
JM		 7455
7456 if (err)
7457 goto free_msg;
7458
9360ffd1
DM		 7459 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7460 goto nla_put_failure;
9588bbd5
JM		 7461
7462 genlmsg_end(msg, hdr);
4c476991
JB		 7463
7464 return genlmsg_reply(msg, info);
9588bbd5
JM		 7465
7466 nla_put_failure:
7467 err = -ENOBUFS;
7468 free_msg:
7469 nlmsg_free(msg);
9588bbd5
JM		 7470 return err;
7471}
7472
7473static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7474 struct genl_info *info)
7475{
4c476991 7476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7477 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7478 u64 cookie;
9588bbd5
JM		 7479
7480 if (!info->attrs[NL80211_ATTR_COOKIE])
7481 return -EINVAL;
7482
4c476991
JB		 7483 if (!rdev->ops->cancel_remain_on_channel)
7484 return -EOPNOTSUPP;
9588bbd5 7485
9588bbd5
JM		 7486 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7487
e35e4d28 7488 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7489}
7490
13ae75b1
JM		 7491static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7492 u8 *rates, u8 rates_len)
7493{
7494 u8 i;
7495 u32 mask = 0;
7496
7497 for (i = 0; i < rates_len; i++) {
7498 int rate = (rates[i] & 0x7f) * 5;
7499 int ridx;
7500 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7501 struct ieee80211_rate *srate =
7502 &sband->bitrates[ridx];
7503 if (rate == srate->bitrate) {
7504 mask |= 1 << ridx;
7505 break;
7506 }
7507 }
7508 if (ridx == sband->n_bitrates)
7509 return 0; /* rate not found */
7510 }
7511
7512 return mask;
7513}
7514
24db78c0
SW		 7515static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7516 u8 *rates, u8 rates_len,
7517 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7518{
7519 u8 i;
7520
7521 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7522
7523 for (i = 0; i < rates_len; i++) {
7524 int ridx, rbit;
7525
7526 ridx = rates[i] / 8;
7527 rbit = BIT(rates[i] % 8);
7528
7529 /* check validity */
910570b5 7530 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7531 return false;
7532
7533 /* check availability */
7534 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7535 mcs[ridx] |= rbit;
7536 else
7537 return false;
7538 }
7539
7540 return true;
7541}
7542
204e35a9
JD		 7543static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7544{
7545 u16 mcs_mask = 0;
7546
7547 switch (vht_mcs_map) {
7548 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7549 break;
7550 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7551 mcs_mask = 0x00FF;
7552 break;
7553 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7554 mcs_mask = 0x01FF;
7555 break;
7556 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7557 mcs_mask = 0x03FF;
7558 break;
7559 default:
7560 break;
7561 }
7562
7563 return mcs_mask;
7564}
7565
7566static void vht_build_mcs_mask(u16 vht_mcs_map,
7567 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7568{
7569 u8 nss;
7570
7571 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7572 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7573 vht_mcs_map >>= 2;
7574 }
7575}
7576
7577static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7578 struct nl80211_txrate_vht *txrate,
7579 u16 mcs[NL80211_VHT_NSS_MAX])
7580{
7581 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7582 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7583 u8 i;
7584
7585 if (!sband->vht_cap.vht_supported)
7586 return false;
7587
7588 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7589
7590 /* Build vht_mcs_mask from VHT capabilities */
7591 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7592
7593 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7594 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7595 mcs[i] = txrate->mcs[i];
7596 else
7597 return false;
7598 }
7599
7600 return true;
7601}
7602
b54452b0 7603static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7604 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7605 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7606 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7607 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7608 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7609 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7610};
7611
7612static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7613 struct genl_info *info)
7614{
7615 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7617 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7618 int rem, i;
7619 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7620 struct nlattr *tx_rates;
7621 struct ieee80211_supported_band *sband;
204e35a9 7622 u16 vht_tx_mcs_map;
13ae75b1 7623
4c476991
JB		 7624 if (!rdev->ops->set_bitrate_mask)
7625 return -EOPNOTSUPP;
13ae75b1
JM		 7626
7627 memset(&mask, 0, sizeof(mask));
7628 /* Default to all rates enabled */
7629 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7630 sband = rdev->wiphy.bands[i];
7869303b
JD		 7631
7632 if (!sband)
7633 continue;
7634
7635 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7636 memcpy(mask.control[i].ht_mcs,
7869303b 7637 sband->ht_cap.mcs.rx_mask,
d1e33e65 7638 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7639
7640 if (!sband->vht_cap.vht_supported)
7641 continue;
7642
7643 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7644 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7645 }
7646
b9243ab0
JD		 7647 /* if no rates are given set it back to the defaults */
7648 if (!info->attrs[NL80211_ATTR_TX_RATES])
7649 goto out;
7650
13ae75b1
JM		 7651 /*
7652 * The nested attribute uses enum nl80211_band as the index. This maps
7653 * directly to the enum ieee80211_band values used in cfg80211.
7654 */
24db78c0 7655 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7656 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7657 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7658 int err;
7659
4c476991
JB		 7660 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7661 return -EINVAL;
13ae75b1 7662 sband = rdev->wiphy.bands[band];
4c476991
JB		 7663 if (sband == NULL)
7664 return -EINVAL;
ae811e21
JB		 7665 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7666 nla_len(tx_rates), nl80211_txattr_policy);
7667 if (err)
7668 return err;
13ae75b1
JM		 7669 if (tb[NL80211_TXRATE_LEGACY]) {
7670 mask.control[band].legacy = rateset_to_mask(
7671 sband,
7672 nla_data(tb[NL80211_TXRATE_LEGACY]),
7673 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7674 if ((mask.control[band].legacy == 0) &&
7675 nla_len(tb[NL80211_TXRATE_LEGACY]))
7676 return -EINVAL;
24db78c0 7677 }
d1e33e65 7678 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7679 if (!ht_rateset_to_mask(
7680 sband,
d1e33e65
JD		 7681 nla_data(tb[NL80211_TXRATE_HT]),
7682 nla_len(tb[NL80211_TXRATE_HT]),
7683 mask.control[band].ht_mcs))
24db78c0
SW		 7684 return -EINVAL;
7685 }
204e35a9
JD		 7686 if (tb[NL80211_TXRATE_VHT]) {
7687 if (!vht_set_mcs_mask(
7688 sband,
7689 nla_data(tb[NL80211_TXRATE_VHT]),
7690 mask.control[band].vht_mcs))
7691 return -EINVAL;
7692 }
0b9323f6
JD		 7693 if (tb[NL80211_TXRATE_GI]) {
7694 mask.control[band].gi =
7695 nla_get_u8(tb[NL80211_TXRATE_GI]);
7696 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7697 return -EINVAL;
7698 }
24db78c0
SW		 7699
7700 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7701 /* don't allow empty legacy rates if HT or VHT
7702 * are not even supported.
7703 */
7704 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7705 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7706 return -EINVAL;
7707
7708 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7709 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7710 goto out;
7711
7712 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7713 if (mask.control[band].vht_mcs[i])
7714 goto out;
24db78c0
SW		 7715
7716 /* legacy and mcs rates may not be both empty */
204e35a9 7717 return -EINVAL;
13ae75b1
JM		 7718 }
7719 }
7720
b9243ab0 7721out:
e35e4d28 7722 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7723}
7724
2e161f78 7725static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7726{
4c476991 7727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7728 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7729 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7730
7731 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7732 return -EINVAL;
7733
2e161f78
JB		 7734 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7735 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7736
71bbc994
JB		 7737 switch (wdev->iftype) {
7738 case NL80211_IFTYPE_STATION:
7739 case NL80211_IFTYPE_ADHOC:
7740 case NL80211_IFTYPE_P2P_CLIENT:
7741 case NL80211_IFTYPE_AP:
7742 case NL80211_IFTYPE_AP_VLAN:
7743 case NL80211_IFTYPE_MESH_POINT:
7744 case NL80211_IFTYPE_P2P_GO:
98104fde 7745 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7746 break;
7747 default:
4c476991 7748 return -EOPNOTSUPP;
71bbc994 7749 }
026331c4
JM		 7750
7751 /* not much point in registering if we can't reply */
4c476991
JB		 7752 if (!rdev->ops->mgmt_tx)
7753 return -EOPNOTSUPP;
026331c4 7754
15e47304 7755 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7756 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7757 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7758}
7759
2e161f78 7760static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7761{
4c476991 7762 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7763 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7764 struct cfg80211_chan_def chandef;
026331c4 7765 int err;
d64d373f 7766 void *hdr = NULL;
026331c4 7767 u64 cookie;
e247bd90 7768 struct sk_buff *msg = NULL;
b176e629
AO		 7769 struct cfg80211_mgmt_tx_params params = {
7770 .dont_wait_for_ack =
7771 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7772 };
026331c4 7773
683b6d3b 7774 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7775 return -EINVAL;
7776
4c476991
JB		 7777 if (!rdev->ops->mgmt_tx)
7778 return -EOPNOTSUPP;
026331c4 7779
71bbc994 7780 switch (wdev->iftype) {
ea141b75
AQ		 7781 case NL80211_IFTYPE_P2P_DEVICE:
7782 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7783 return -EINVAL;
71bbc994
JB		 7784 case NL80211_IFTYPE_STATION:
7785 case NL80211_IFTYPE_ADHOC:
7786 case NL80211_IFTYPE_P2P_CLIENT:
7787 case NL80211_IFTYPE_AP:
7788 case NL80211_IFTYPE_AP_VLAN:
7789 case NL80211_IFTYPE_MESH_POINT:
7790 case NL80211_IFTYPE_P2P_GO:
7791 break;
7792 default:
4c476991 7793 return -EOPNOTSUPP;
71bbc994 7794 }
026331c4 7795
f7ca38df 7796 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7797 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7798 return -EINVAL;
b176e629 7799 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7800
7801 /*
7802 * We should wait on the channel for at least a minimum amount
7803 * of time (10ms) but no longer than the driver supports.
7804 */
b176e629
AO		 7805 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7806 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7807 return -EINVAL;
7808
f7ca38df
JB		 7809 }
7810
b176e629 7811 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7812
b176e629 7813 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7814 return -EINVAL;
7815
b176e629 7816 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7817
ea141b75
AQ		 7818 /* get the channel if any has been specified, otherwise pass NULL to
7819 * the driver. The latter will use the current one
7820 */
7821 chandef.chan = NULL;
7822 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7823 err = nl80211_parse_chandef(rdev, info, &chandef);
7824 if (err)
7825 return err;
7826 }
7827
b176e629 7828 if (!chandef.chan && params.offchan)
ea141b75 7829 return -EINVAL;
026331c4 7830
34d22ce2
AO		 7831 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7832 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7833
7834 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7835 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7836 int i;
7837
7838 if (len % sizeof(u16))
7839 return -EINVAL;
7840
7841 params.n_csa_offsets = len / sizeof(u16);
7842 params.csa_offsets =
7843 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7844
7845 /* check that all the offsets fit the frame */
7846 for (i = 0; i < params.n_csa_offsets; i++) {
7847 if (params.csa_offsets[i] >= params.len)
7848 return -EINVAL;
7849 }
7850 }
7851
b176e629 7852 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7854 if (!msg)
7855 return -ENOMEM;
026331c4 7856
15e47304 7857 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7858 NL80211_CMD_FRAME);
cb35fba3
DC		 7859 if (!hdr) {
7860 err = -ENOBUFS;
e247bd90
JB		 7861 goto free_msg;
7862 }
026331c4 7863 }
e247bd90 7864
b176e629
AO		 7865 params.chan = chandef.chan;
7866 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7867 if (err)
7868 goto free_msg;
7869
e247bd90 7870 if (msg) {
9360ffd1
DM		 7871 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7872 goto nla_put_failure;
026331c4 7873
e247bd90
JB		 7874 genlmsg_end(msg, hdr);
7875 return genlmsg_reply(msg, info);
7876 }
7877
7878 return 0;
026331c4
JM		 7879
7880 nla_put_failure:
7881 err = -ENOBUFS;
7882 free_msg:
7883 nlmsg_free(msg);
026331c4
JM		 7884 return err;
7885}
7886
f7ca38df
JB		 7887static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7888{
7889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7890 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7891 u64 cookie;
7892
7893 if (!info->attrs[NL80211_ATTR_COOKIE])
7894 return -EINVAL;
7895
7896 if (!rdev->ops->mgmt_tx_cancel_wait)
7897 return -EOPNOTSUPP;
7898
71bbc994
JB		 7899 switch (wdev->iftype) {
7900 case NL80211_IFTYPE_STATION:
7901 case NL80211_IFTYPE_ADHOC:
7902 case NL80211_IFTYPE_P2P_CLIENT:
7903 case NL80211_IFTYPE_AP:
7904 case NL80211_IFTYPE_AP_VLAN:
7905 case NL80211_IFTYPE_P2P_GO:
98104fde 7906 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7907 break;
7908 default:
f7ca38df 7909 return -EOPNOTSUPP;
71bbc994 7910 }
f7ca38df
JB		 7911
7912 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7913
e35e4d28 7914 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7915}
7916
ffb9eb3d
KV		 7917static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7918{
4c476991 7919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7920 struct wireless_dev *wdev;
4c476991 7921 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7922 u8 ps_state;
7923 bool state;
7924 int err;
7925
4c476991
JB		 7926 if (!info->attrs[NL80211_ATTR_PS_STATE])
7927 return -EINVAL;
ffb9eb3d
KV		 7928
7929 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7930
4c476991
JB		 7931 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7932 return -EINVAL;
ffb9eb3d
KV		 7933
7934 wdev = dev->ieee80211_ptr;
7935
4c476991
JB		 7936 if (!rdev->ops->set_power_mgmt)
7937 return -EOPNOTSUPP;
ffb9eb3d
KV		 7938
7939 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7940
7941 if (state == wdev->ps)
4c476991 7942 return 0;
ffb9eb3d 7943
e35e4d28 7944 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7945 if (!err)
7946 wdev->ps = state;
ffb9eb3d
KV		 7947 return err;
7948}
7949
7950static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7951{
4c476991 7952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7953 enum nl80211_ps_state ps_state;
7954 struct wireless_dev *wdev;
4c476991 7955 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7956 struct sk_buff *msg;
7957 void *hdr;
7958 int err;
7959
ffb9eb3d
KV		 7960 wdev = dev->ieee80211_ptr;
7961
4c476991
JB		 7962 if (!rdev->ops->set_power_mgmt)
7963 return -EOPNOTSUPP;
ffb9eb3d
KV		 7964
7965 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7966 if (!msg)
7967 return -ENOMEM;
ffb9eb3d 7968
15e47304 7969 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7970 NL80211_CMD_GET_POWER_SAVE);
7971 if (!hdr) {
4c476991 7972 err = -ENOBUFS;
ffb9eb3d
KV		 7973 goto free_msg;
7974 }
7975
7976 if (wdev->ps)
7977 ps_state = NL80211_PS_ENABLED;
7978 else
7979 ps_state = NL80211_PS_DISABLED;
7980
9360ffd1
DM		 7981 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7982 goto nla_put_failure;
ffb9eb3d
KV		 7983
7984 genlmsg_end(msg, hdr);
4c476991 7985 return genlmsg_reply(msg, info);
ffb9eb3d 7986
4c476991 7987 nla_put_failure:
ffb9eb3d 7988 err = -ENOBUFS;
4c476991 7989 free_msg:
ffb9eb3d 7990 nlmsg_free(msg);
ffb9eb3d
KV		 7991 return err;
7992}
7993
94e860f1
JB		 7994static const struct nla_policy
7995nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 7996 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7997 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7998 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7999 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8000 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8001 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8002};
8003
84f10708 8004static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8005 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8006{
8007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8008 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8009 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8010
d9d8b019 8011 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8012 return -EINVAL;
8013
84f10708
TP		 8014 if (!rdev->ops->set_cqm_txe_config)
8015 return -EOPNOTSUPP;
8016
8017 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8018 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8019 return -EOPNOTSUPP;
8020
e35e4d28 8021 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8022}
8023
d6dc1a38
JO		 8024static int nl80211_set_cqm_rssi(struct genl_info *info,
8025 s32 threshold, u32 hysteresis)
8026{
4c476991 8027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8028 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8029 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8030
8031 if (threshold > 0)
8032 return -EINVAL;
8033
1da5fcc8
JB		 8034 /* disabling - hysteresis should also be zero then */
8035 if (threshold == 0)
8036 hysteresis = 0;
d6dc1a38 8037
4c476991
JB		 8038 if (!rdev->ops->set_cqm_rssi_config)
8039 return -EOPNOTSUPP;
d6dc1a38 8040
074ac8df 8041 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8042 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8043 return -EOPNOTSUPP;
d6dc1a38 8044
e35e4d28 8045 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8046}
8047
8048static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8049{
8050 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8051 struct nlattr *cqm;
8052 int err;
8053
8054 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8055 if (!cqm)
8056 return -EINVAL;
d6dc1a38
JO		 8057
8058 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8059 nl80211_attr_cqm_policy);
8060 if (err)
1da5fcc8 8061 return err;
d6dc1a38
JO		 8062
8063 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8064 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8065 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8066 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8067
1da5fcc8
JB		 8068 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8069 }
8070
8071 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8072 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8073 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8074 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8075 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8076 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8077
8078 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8079 }
8080
8081 return -EINVAL;
d6dc1a38
JO		 8082}
8083
29cbe68c
JB		 8084static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8085{
8086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8087 struct net_device *dev = info->user_ptr[1];
8088 struct mesh_config cfg;
c80d545d 8089 struct mesh_setup setup;
29cbe68c
JB		 8090 int err;
8091
8092 /* start with default */
8093 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8094 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8095
24bdd9f4 8096 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8097 /* and parse parameters if given */
24bdd9f4 8098 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8099 if (err)
8100 return err;
8101 }
8102
8103 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8104 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8105 return -EINVAL;
8106
c80d545d
JC		 8107 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8108 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8109
4bb62344
CYY		 8110 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8111 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8112 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8113 return -EINVAL;
8114
9bdbf04d
MP		 8115 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8116 setup.beacon_interval =
8117 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8118 if (setup.beacon_interval < 10 ||
8119 setup.beacon_interval > 10000)
8120 return -EINVAL;
8121 }
8122
8123 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8124 setup.dtim_period =
8125 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8126 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8127 return -EINVAL;
8128 }
8129
c80d545d
JC		 8130 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8131 /* parse additional setup parameters if given */
8132 err = nl80211_parse_mesh_setup(info, &setup);
8133 if (err)
8134 return err;
8135 }
8136
d37bb18a
TP		 8137 if (setup.user_mpm)
8138 cfg.auto_open_plinks = false;
8139
cc1d2806 8140 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8141 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8142 if (err)
8143 return err;
cc1d2806
JB		 8144 } else {
8145 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8146 setup.chandef.chan = NULL;
cc1d2806
JB		 8147 }
8148
ffb3cf30
AN		 8149 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8150 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8151 int n_rates =
8152 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8153 struct ieee80211_supported_band *sband;
8154
8155 if (!setup.chandef.chan)
8156 return -EINVAL;
8157
8158 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8159
8160 err = ieee80211_get_ratemask(sband, rates, n_rates,
8161 &setup.basic_rates);
8162 if (err)
8163 return err;
8164 }
8165
c80d545d 8166 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8167}
8168
8169static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8170{
8171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8172 struct net_device *dev = info->user_ptr[1];
8173
8174 return cfg80211_leave_mesh(rdev, dev);
8175}
8176
dfb89c56 8177#ifdef CONFIG_PM
bb92d199
AK		 8178static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8179 struct cfg80211_registered_device *rdev)
8180{
6abb9cb9 8181 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8182 struct nlattr *nl_pats, *nl_pat;
8183 int i, pat_len;
8184
6abb9cb9 8185 if (!wowlan->n_patterns)
bb92d199
AK		 8186 return 0;
8187
8188 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8189 if (!nl_pats)
8190 return -ENOBUFS;
8191
6abb9cb9 8192 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8193 nl_pat = nla_nest_start(msg, i + 1);
8194 if (!nl_pat)
8195 return -ENOBUFS;
6abb9cb9 8196 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8197 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8198 wowlan->patterns[i].mask) ||
50ac6607
AK		 8199 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8200 wowlan->patterns[i].pattern) ||
8201 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8202 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8203 return -ENOBUFS;
8204 nla_nest_end(msg, nl_pat);
8205 }
8206 nla_nest_end(msg, nl_pats);
8207
8208 return 0;
8209}
8210
2a0e047e
JB		 8211static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8212 struct cfg80211_wowlan_tcp *tcp)
8213{
8214 struct nlattr *nl_tcp;
8215
8216 if (!tcp)
8217 return 0;
8218
8219 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8220 if (!nl_tcp)
8221 return -ENOBUFS;
8222
8223 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8224 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8225 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8226 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8227 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8228 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8229 tcp->payload_len, tcp->payload) ||
8230 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8231 tcp->data_interval) ||
8232 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8233 tcp->wake_len, tcp->wake_data) ||
8234 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8235 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8236 return -ENOBUFS;
8237
8238 if (tcp->payload_seq.len &&
8239 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8240 sizeof(tcp->payload_seq), &tcp->payload_seq))
8241 return -ENOBUFS;
8242
8243 if (tcp->payload_tok.len &&
8244 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8245 sizeof(tcp->payload_tok) + tcp->tokens_size,
8246 &tcp->payload_tok))
8247 return -ENOBUFS;
8248
e248ad30
JB		 8249 nla_nest_end(msg, nl_tcp);
8250
2a0e047e
JB		 8251 return 0;
8252}
8253
ff1b6e69
JB		 8254static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8255{
8256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8257 struct sk_buff *msg;
8258 void *hdr;
2a0e047e 8259 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8260
964dc9e2 8261 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8262 return -EOPNOTSUPP;
8263
6abb9cb9 8264 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8265 /* adjust size to have room for all the data */
6abb9cb9
JB		 8266 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8267 rdev->wiphy.wowlan_config->tcp->payload_len +
8268 rdev->wiphy.wowlan_config->tcp->wake_len +
8269 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8270 }
8271
8272 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8273 if (!msg)
8274 return -ENOMEM;
8275
15e47304 8276 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8277 NL80211_CMD_GET_WOWLAN);
8278 if (!hdr)
8279 goto nla_put_failure;
8280
6abb9cb9 8281 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8282 struct nlattr *nl_wowlan;
8283
8284 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8285 if (!nl_wowlan)
8286 goto nla_put_failure;
8287
6abb9cb9 8288 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8289 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8290 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8291 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8292 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8293 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8294 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8295 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8296 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8297 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8298 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8299 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8300 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8301 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8302 goto nla_put_failure;
2a0e047e 8303
bb92d199
AK		 8304 if (nl80211_send_wowlan_patterns(msg, rdev))
8305 goto nla_put_failure;
2a0e047e 8306
6abb9cb9
JB		 8307 if (nl80211_send_wowlan_tcp(msg,
8308 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8309 goto nla_put_failure;
8310
ff1b6e69
JB		 8311 nla_nest_end(msg, nl_wowlan);
8312 }
8313
8314 genlmsg_end(msg, hdr);
8315 return genlmsg_reply(msg, info);
8316
8317nla_put_failure:
8318 nlmsg_free(msg);
8319 return -ENOBUFS;
8320}
8321
2a0e047e
JB		 8322static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8323 struct nlattr *attr,
8324 struct cfg80211_wowlan *trig)
8325{
8326 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8327 struct cfg80211_wowlan_tcp *cfg;
8328 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8329 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8330 u32 size;
8331 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8332 int err, port;
8333
964dc9e2 8334 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8335 return -EINVAL;
8336
8337 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8338 nla_data(attr), nla_len(attr),
8339 nl80211_wowlan_tcp_policy);
8340 if (err)
8341 return err;
8342
8343 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8344 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8345 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8346 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8347 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8348 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8349 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8350 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8351 return -EINVAL;
8352
8353 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8354 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8355 return -EINVAL;
8356
8357 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8358 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8359 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8360 return -EINVAL;
8361
8362 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8363 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8364 return -EINVAL;
8365
8366 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8367 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8368 return -EINVAL;
8369
8370 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8371 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8372
8373 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8374 tokens_size = tokln - sizeof(*tok);
8375
8376 if (!tok->len || tokens_size % tok->len)
8377 return -EINVAL;
964dc9e2 8378 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8379 return -EINVAL;
964dc9e2 8380 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8381 return -EINVAL;
964dc9e2 8382 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8383 return -EINVAL;
964dc9e2 8384 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8385 return -EINVAL;
8386 if (tok->offset + tok->len > data_size)
8387 return -EINVAL;
8388 }
8389
8390 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8391 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8392 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8393 return -EINVAL;
8394 if (seq->len == 0 || seq->len > 4)
8395 return -EINVAL;
8396 if (seq->len + seq->offset > data_size)
8397 return -EINVAL;
8398 }
8399
8400 size = sizeof(*cfg);
8401 size += data_size;
8402 size += wake_size + wake_mask_size;
8403 size += tokens_size;
8404
8405 cfg = kzalloc(size, GFP_KERNEL);
8406 if (!cfg)
8407 return -ENOMEM;
8408 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8409 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8410 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8411 ETH_ALEN);
8412 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8413 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8414 else
8415 port = 0;
8416#ifdef CONFIG_INET
8417 /* allocate a socket and port for it and use it */
8418 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8419 IPPROTO_TCP, &cfg->sock, 1);
8420 if (err) {
8421 kfree(cfg);
8422 return err;
8423 }
8424 if (inet_csk_get_port(cfg->sock->sk, port)) {
8425 sock_release(cfg->sock);
8426 kfree(cfg);
8427 return -EADDRINUSE;
8428 }
8429 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8430#else
8431 if (!port) {
8432 kfree(cfg);
8433 return -EINVAL;
8434 }
8435 cfg->src_port = port;
8436#endif
8437
8438 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8439 cfg->payload_len = data_size;
8440 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8441 memcpy((void *)cfg->payload,
8442 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8443 data_size);
8444 if (seq)
8445 cfg->payload_seq = *seq;
8446 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8447 cfg->wake_len = wake_size;
8448 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8449 memcpy((void *)cfg->wake_data,
8450 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8451 wake_size);
8452 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8453 data_size + wake_size;
8454 memcpy((void *)cfg->wake_mask,
8455 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8456 wake_mask_size);
8457 if (tok) {
8458 cfg->tokens_size = tokens_size;
8459 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8460 }
8461
8462 trig->tcp = cfg;
8463
8464 return 0;
8465}
8466
ff1b6e69
JB		 8467static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8468{
8469 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8470 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8471 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8472 struct cfg80211_wowlan *ntrig;
964dc9e2 8473 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8474 int err, i;
6abb9cb9 8475 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8476
964dc9e2 8477 if (!wowlan)
ff1b6e69
JB		 8478 return -EOPNOTSUPP;
8479
ae33bd81
JB		 8480 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8481 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8482 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8483 goto set_wakeup;
8484 }
ff1b6e69
JB		 8485
8486 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8487 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8488 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8489 nl80211_wowlan_policy);
8490 if (err)
8491 return err;
8492
8493 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8494 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8495 return -EINVAL;
8496 new_triggers.any = true;
8497 }
8498
8499 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8500 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8501 return -EINVAL;
8502 new_triggers.disconnect = true;
8503 }
8504
8505 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8506 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8507 return -EINVAL;
8508 new_triggers.magic_pkt = true;
8509 }
8510
77dbbb13
JB		 8511 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8512 return -EINVAL;
8513
8514 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8515 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8516 return -EINVAL;
8517 new_triggers.gtk_rekey_failure = true;
8518 }
8519
8520 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8521 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8522 return -EINVAL;
8523 new_triggers.eap_identity_req = true;
8524 }
8525
8526 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8527 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8528 return -EINVAL;
8529 new_triggers.four_way_handshake = true;
8530 }
8531
8532 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8533 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8534 return -EINVAL;
8535 new_triggers.rfkill_release = true;
8536 }
8537
ff1b6e69
JB		 8538 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8539 struct nlattr *pat;
8540 int n_patterns = 0;
bb92d199 8541 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8542 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8543
8544 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8545 rem)
8546 n_patterns++;
8547 if (n_patterns > wowlan->n_patterns)
8548 return -EINVAL;
8549
8550 new_triggers.patterns = kcalloc(n_patterns,
8551 sizeof(new_triggers.patterns[0]),
8552 GFP_KERNEL);
8553 if (!new_triggers.patterns)
8554 return -ENOMEM;
8555
8556 new_triggers.n_patterns = n_patterns;
8557 i = 0;
8558
8559 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8560 rem) {
922bd80f
JB		 8561 u8 *mask_pat;
8562
50ac6607
AK		 8563 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8564 nla_len(pat), NULL);
ff1b6e69 8565 err = -EINVAL;
50ac6607
AK		 8566 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8567 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8568 goto error;
50ac6607 8569 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8570 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8571 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8572 goto error;
8573 if (pat_len > wowlan->pattern_max_len ||
8574 pat_len < wowlan->pattern_min_len)
8575 goto error;
8576
50ac6607 8577 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8578 pkt_offset = 0;
8579 else
8580 pkt_offset = nla_get_u32(
50ac6607 8581 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8582 if (pkt_offset > wowlan->max_pkt_offset)
8583 goto error;
8584 new_triggers.patterns[i].pkt_offset = pkt_offset;
8585
922bd80f
JB		 8586 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8587 if (!mask_pat) {
ff1b6e69
JB		 8588 err = -ENOMEM;
8589 goto error;
8590 }
922bd80f
JB		 8591 new_triggers.patterns[i].mask = mask_pat;
8592 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8593 mask_len);
922bd80f
JB		 8594 mask_pat += mask_len;
8595 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8596 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8597 memcpy(mask_pat,
50ac6607 8598 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8599 pat_len);
8600 i++;
8601 }
8602 }
8603
2a0e047e
JB		 8604 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8605 err = nl80211_parse_wowlan_tcp(
8606 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8607 &new_triggers);
8608 if (err)
8609 goto error;
8610 }
8611
ae33bd81
JB		 8612 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8613 if (!ntrig) {
8614 err = -ENOMEM;
8615 goto error;
ff1b6e69 8616 }
ae33bd81 8617 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8618 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8619
ae33bd81 8620 set_wakeup:
6abb9cb9
JB		 8621 if (rdev->ops->set_wakeup &&
8622 prev_enabled != !!rdev->wiphy.wowlan_config)
8623 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8624
ff1b6e69
JB		 8625 return 0;
8626 error:
8627 for (i = 0; i < new_triggers.n_patterns; i++)
8628 kfree(new_triggers.patterns[i].mask);
8629 kfree(new_triggers.patterns);
2a0e047e
JB		 8630 if (new_triggers.tcp && new_triggers.tcp->sock)
8631 sock_release(new_triggers.tcp->sock);
8632 kfree(new_triggers.tcp);
ff1b6e69
JB		 8633 return err;
8634}
dfb89c56 8635#endif
ff1b6e69 8636
be29b99a
AK		 8637static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8638 struct cfg80211_registered_device *rdev)
8639{
8640 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8641 int i, j, pat_len;
8642 struct cfg80211_coalesce_rules *rule;
8643
8644 if (!rdev->coalesce->n_rules)
8645 return 0;
8646
8647 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8648 if (!nl_rules)
8649 return -ENOBUFS;
8650
8651 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8652 nl_rule = nla_nest_start(msg, i + 1);
8653 if (!nl_rule)
8654 return -ENOBUFS;
8655
8656 rule = &rdev->coalesce->rules[i];
8657 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8658 rule->delay))
8659 return -ENOBUFS;
8660
8661 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8662 rule->condition))
8663 return -ENOBUFS;
8664
8665 nl_pats = nla_nest_start(msg,
8666 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8667 if (!nl_pats)
8668 return -ENOBUFS;
8669
8670 for (j = 0; j < rule->n_patterns; j++) {
8671 nl_pat = nla_nest_start(msg, j + 1);
8672 if (!nl_pat)
8673 return -ENOBUFS;
8674 pat_len = rule->patterns[j].pattern_len;
8675 if (nla_put(msg, NL80211_PKTPAT_MASK,
8676 DIV_ROUND_UP(pat_len, 8),
8677 rule->patterns[j].mask) ||
8678 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8679 rule->patterns[j].pattern) ||
8680 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8681 rule->patterns[j].pkt_offset))
8682 return -ENOBUFS;
8683 nla_nest_end(msg, nl_pat);
8684 }
8685 nla_nest_end(msg, nl_pats);
8686 nla_nest_end(msg, nl_rule);
8687 }
8688 nla_nest_end(msg, nl_rules);
8689
8690 return 0;
8691}
8692
8693static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8694{
8695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8696 struct sk_buff *msg;
8697 void *hdr;
8698
8699 if (!rdev->wiphy.coalesce)
8700 return -EOPNOTSUPP;
8701
8702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8703 if (!msg)
8704 return -ENOMEM;
8705
8706 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8707 NL80211_CMD_GET_COALESCE);
8708 if (!hdr)
8709 goto nla_put_failure;
8710
8711 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8712 goto nla_put_failure;
8713
8714 genlmsg_end(msg, hdr);
8715 return genlmsg_reply(msg, info);
8716
8717nla_put_failure:
8718 nlmsg_free(msg);
8719 return -ENOBUFS;
8720}
8721
8722void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8723{
8724 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8725 int i, j;
8726 struct cfg80211_coalesce_rules *rule;
8727
8728 if (!coalesce)
8729 return;
8730
8731 for (i = 0; i < coalesce->n_rules; i++) {
8732 rule = &coalesce->rules[i];
8733 for (j = 0; j < rule->n_patterns; j++)
8734 kfree(rule->patterns[j].mask);
8735 kfree(rule->patterns);
8736 }
8737 kfree(coalesce->rules);
8738 kfree(coalesce);
8739 rdev->coalesce = NULL;
8740}
8741
8742static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8743 struct nlattr *rule,
8744 struct cfg80211_coalesce_rules *new_rule)
8745{
8746 int err, i;
8747 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8748 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8749 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8750 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8751
8752 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8753 nla_len(rule), nl80211_coalesce_policy);
8754 if (err)
8755 return err;
8756
8757 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8758 new_rule->delay =
8759 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8760 if (new_rule->delay > coalesce->max_delay)
8761 return -EINVAL;
8762
8763 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8764 new_rule->condition =
8765 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8766 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8767 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8768 return -EINVAL;
8769
8770 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8771 return -EINVAL;
8772
8773 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8774 rem)
8775 n_patterns++;
8776 if (n_patterns > coalesce->n_patterns)
8777 return -EINVAL;
8778
8779 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8780 GFP_KERNEL);
8781 if (!new_rule->patterns)
8782 return -ENOMEM;
8783
8784 new_rule->n_patterns = n_patterns;
8785 i = 0;
8786
8787 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8788 rem) {
922bd80f
JB		 8789 u8 *mask_pat;
8790
be29b99a
AK		 8791 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8792 nla_len(pat), NULL);
8793 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8794 !pat_tb[NL80211_PKTPAT_PATTERN])
8795 return -EINVAL;
8796 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8797 mask_len = DIV_ROUND_UP(pat_len, 8);
8798 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8799 return -EINVAL;
8800 if (pat_len > coalesce->pattern_max_len ||
8801 pat_len < coalesce->pattern_min_len)
8802 return -EINVAL;
8803
8804 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8805 pkt_offset = 0;
8806 else
8807 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8808 if (pkt_offset > coalesce->max_pkt_offset)
8809 return -EINVAL;
8810 new_rule->patterns[i].pkt_offset = pkt_offset;
8811
922bd80f
JB		 8812 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8813 if (!mask_pat)
be29b99a 8814 return -ENOMEM;
922bd80f
JB		 8815
8816 new_rule->patterns[i].mask = mask_pat;
8817 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8818 mask_len);
8819
8820 mask_pat += mask_len;
8821 new_rule->patterns[i].pattern = mask_pat;
be29b99a 8822 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 8823 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8824 pat_len);
be29b99a
AK		 8825 i++;
8826 }
8827
8828 return 0;
8829}
8830
8831static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8832{
8833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8834 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8835 struct cfg80211_coalesce new_coalesce = {};
8836 struct cfg80211_coalesce *n_coalesce;
8837 int err, rem_rule, n_rules = 0, i, j;
8838 struct nlattr *rule;
8839 struct cfg80211_coalesce_rules *tmp_rule;
8840
8841 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8842 return -EOPNOTSUPP;
8843
8844 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8845 cfg80211_rdev_free_coalesce(rdev);
8846 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8847 return 0;
8848 }
8849
8850 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8851 rem_rule)
8852 n_rules++;
8853 if (n_rules > coalesce->n_rules)
8854 return -EINVAL;
8855
8856 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8857 GFP_KERNEL);
8858 if (!new_coalesce.rules)
8859 return -ENOMEM;
8860
8861 new_coalesce.n_rules = n_rules;
8862 i = 0;
8863
8864 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8865 rem_rule) {
8866 err = nl80211_parse_coalesce_rule(rdev, rule,
8867 &new_coalesce.rules[i]);
8868 if (err)
8869 goto error;
8870
8871 i++;
8872 }
8873
8874 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8875 if (err)
8876 goto error;
8877
8878 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8879 if (!n_coalesce) {
8880 err = -ENOMEM;
8881 goto error;
8882 }
8883 cfg80211_rdev_free_coalesce(rdev);
8884 rdev->coalesce = n_coalesce;
8885
8886 return 0;
8887error:
8888 for (i = 0; i < new_coalesce.n_rules; i++) {
8889 tmp_rule = &new_coalesce.rules[i];
8890 for (j = 0; j < tmp_rule->n_patterns; j++)
8891 kfree(tmp_rule->patterns[j].mask);
8892 kfree(tmp_rule->patterns);
8893 }
8894 kfree(new_coalesce.rules);
8895
8896 return err;
8897}
8898
e5497d76
JB		 8899static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8900{
8901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8902 struct net_device *dev = info->user_ptr[1];
8903 struct wireless_dev *wdev = dev->ieee80211_ptr;
8904 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8905 struct cfg80211_gtk_rekey_data rekey_data;
8906 int err;
8907
8908 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8909 return -EINVAL;
8910
8911 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8912 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8913 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8914 nl80211_rekey_policy);
8915 if (err)
8916 return err;
8917
8918 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8919 return -ERANGE;
8920 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8921 return -ERANGE;
8922 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8923 return -ERANGE;
8924
8925 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8926 NL80211_KEK_LEN);
8927 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8928 NL80211_KCK_LEN);
8929 memcpy(rekey_data.replay_ctr,
8930 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8931 NL80211_REPLAY_CTR_LEN);
8932
8933 wdev_lock(wdev);
8934 if (!wdev->current_bss) {
8935 err = -ENOTCONN;
8936 goto out;
8937 }
8938
8939 if (!rdev->ops->set_rekey_data) {
8940 err = -EOPNOTSUPP;
8941 goto out;
8942 }
8943
e35e4d28 8944 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8945 out:
8946 wdev_unlock(wdev);
8947 return err;
8948}
8949
28946da7
JB		 8950static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8951 struct genl_info *info)
8952{
8953 struct net_device *dev = info->user_ptr[1];
8954 struct wireless_dev *wdev = dev->ieee80211_ptr;
8955
8956 if (wdev->iftype != NL80211_IFTYPE_AP &&
8957 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8958 return -EINVAL;
8959
15e47304 8960 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8961 return -EBUSY;
8962
15e47304 8963 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8964 return 0;
8965}
8966
7f6cf311
JB		 8967static int nl80211_probe_client(struct sk_buff *skb,
8968 struct genl_info *info)
8969{
8970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8971 struct net_device *dev = info->user_ptr[1];
8972 struct wireless_dev *wdev = dev->ieee80211_ptr;
8973 struct sk_buff *msg;
8974 void *hdr;
8975 const u8 *addr;
8976 u64 cookie;
8977 int err;
8978
8979 if (wdev->iftype != NL80211_IFTYPE_AP &&
8980 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8981 return -EOPNOTSUPP;
8982
8983 if (!info->attrs[NL80211_ATTR_MAC])
8984 return -EINVAL;
8985
8986 if (!rdev->ops->probe_client)
8987 return -EOPNOTSUPP;
8988
8989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8990 if (!msg)
8991 return -ENOMEM;
8992
15e47304 8993 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8994 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8995 if (!hdr) {
8996 err = -ENOBUFS;
7f6cf311
JB		 8997 goto free_msg;
8998 }
8999
9000 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9001
e35e4d28 9002 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9003 if (err)
9004 goto free_msg;
9005
9360ffd1
DM		 9006 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9007 goto nla_put_failure;
7f6cf311
JB		 9008
9009 genlmsg_end(msg, hdr);
9010
9011 return genlmsg_reply(msg, info);
9012
9013 nla_put_failure:
9014 err = -ENOBUFS;
9015 free_msg:
9016 nlmsg_free(msg);
9017 return err;
9018}
9019
5e760230
JB		 9020static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9021{
9022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9023 struct cfg80211_beacon_registration *reg, *nreg;
9024 int rv;
5e760230
JB		 9025
9026 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9027 return -EOPNOTSUPP;
9028
37c73b5f
BG		 9029 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9030 if (!nreg)
9031 return -ENOMEM;
9032
9033 /* First, check if already registered. */
9034 spin_lock_bh(&rdev->beacon_registrations_lock);
9035 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9036 if (reg->nlportid == info->snd_portid) {
9037 rv = -EALREADY;
9038 goto out_err;
9039 }
9040 }
9041 /* Add it to the list */
9042 nreg->nlportid = info->snd_portid;
9043 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9044
37c73b5f 9045 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9046
9047 return 0;
37c73b5f
BG		 9048out_err:
9049 spin_unlock_bh(&rdev->beacon_registrations_lock);
9050 kfree(nreg);
9051 return rv;
5e760230
JB		 9052}
9053
98104fde
JB		 9054static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9055{
9056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9057 struct wireless_dev *wdev = info->user_ptr[1];
9058 int err;
9059
9060 if (!rdev->ops->start_p2p_device)
9061 return -EOPNOTSUPP;
9062
9063 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9064 return -EOPNOTSUPP;
9065
9066 if (wdev->p2p_started)
9067 return 0;
9068
b6a55015
LC		 9069 if (rfkill_blocked(rdev->rfkill))
9070 return -ERFKILL;
98104fde 9071
eeb126e9 9072 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9073 if (err)
9074 return err;
9075
9076 wdev->p2p_started = true;
98104fde 9077 rdev->opencount++;
98104fde
JB		 9078
9079 return 0;
9080}
9081
9082static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9083{
9084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9085 struct wireless_dev *wdev = info->user_ptr[1];
9086
9087 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9088 return -EOPNOTSUPP;
9089
9090 if (!rdev->ops->stop_p2p_device)
9091 return -EOPNOTSUPP;
9092
f9f47529 9093 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9094
9095 return 0;
9096}
9097
3713b4e3
JB		 9098static int nl80211_get_protocol_features(struct sk_buff *skb,
9099 struct genl_info *info)
9100{
9101 void *hdr;
9102 struct sk_buff *msg;
9103
9104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9105 if (!msg)
9106 return -ENOMEM;
9107
9108 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9109 NL80211_CMD_GET_PROTOCOL_FEATURES);
9110 if (!hdr)
9111 goto nla_put_failure;
9112
9113 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9114 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9115 goto nla_put_failure;
9116
9117 genlmsg_end(msg, hdr);
9118 return genlmsg_reply(msg, info);
9119
9120 nla_put_failure:
9121 kfree_skb(msg);
9122 return -ENOBUFS;
9123}
9124
355199e0
JM		 9125static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9126{
9127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9128 struct cfg80211_update_ft_ies_params ft_params;
9129 struct net_device *dev = info->user_ptr[1];
9130
9131 if (!rdev->ops->update_ft_ies)
9132 return -EOPNOTSUPP;
9133
9134 if (!info->attrs[NL80211_ATTR_MDID] ||
9135 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9136 return -EINVAL;
9137
9138 memset(&ft_params, 0, sizeof(ft_params));
9139 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9140 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9141 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9142
9143 return rdev_update_ft_ies(rdev, dev, &ft_params);
9144}
9145
5de17984
AS		 9146static int nl80211_crit_protocol_start(struct sk_buff *skb,
9147 struct genl_info *info)
9148{
9149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9150 struct wireless_dev *wdev = info->user_ptr[1];
9151 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9152 u16 duration;
9153 int ret;
9154
9155 if (!rdev->ops->crit_proto_start)
9156 return -EOPNOTSUPP;
9157
9158 if (WARN_ON(!rdev->ops->crit_proto_stop))
9159 return -EINVAL;
9160
9161 if (rdev->crit_proto_nlportid)
9162 return -EBUSY;
9163
9164 /* determine protocol if provided */
9165 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9166 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9167
9168 if (proto >= NUM_NL80211_CRIT_PROTO)
9169 return -EINVAL;
9170
9171 /* timeout must be provided */
9172 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9173 return -EINVAL;
9174
9175 duration =
9176 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9177
9178 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9179 return -ERANGE;
9180
9181 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9182 if (!ret)
9183 rdev->crit_proto_nlportid = info->snd_portid;
9184
9185 return ret;
9186}
9187
9188static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9189 struct genl_info *info)
9190{
9191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9192 struct wireless_dev *wdev = info->user_ptr[1];
9193
9194 if (!rdev->ops->crit_proto_stop)
9195 return -EOPNOTSUPP;
9196
9197 if (rdev->crit_proto_nlportid) {
9198 rdev->crit_proto_nlportid = 0;
9199 rdev_crit_proto_stop(rdev, wdev);
9200 }
9201 return 0;
9202}
9203
ad7e718c
JB		 9204static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9205{
9206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9207 struct wireless_dev *wdev =
9208 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9209 int i, err;
9210 u32 vid, subcmd;
9211
9212 if (!rdev->wiphy.vendor_commands)
9213 return -EOPNOTSUPP;
9214
9215 if (IS_ERR(wdev)) {
9216 err = PTR_ERR(wdev);
9217 if (err != -EINVAL)
9218 return err;
9219 wdev = NULL;
9220 } else if (wdev->wiphy != &rdev->wiphy) {
9221 return -EINVAL;
9222 }
9223
9224 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9225 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9226 return -EINVAL;
9227
9228 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9229 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9230 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9231 const struct wiphy_vendor_command *vcmd;
9232 void *data = NULL;
9233 int len = 0;
9234
9235 vcmd = &rdev->wiphy.vendor_commands[i];
9236
9237 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9238 continue;
9239
9240 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9241 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9242 if (!wdev)
9243 return -EINVAL;
9244 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9245 !wdev->netdev)
9246 return -EINVAL;
9247
9248 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9249 if (wdev->netdev &&
9250 !netif_running(wdev->netdev))
9251 return -ENETDOWN;
9252 if (!wdev->netdev && !wdev->p2p_started)
9253 return -ENETDOWN;
9254 }
9255 } else {
9256 wdev = NULL;
9257 }
9258
9259 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9260 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9261 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9262 }
9263
9264 rdev->cur_cmd_info = info;
9265 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9266 data, len);
9267 rdev->cur_cmd_info = NULL;
9268 return err;
9269 }
9270
9271 return -EOPNOTSUPP;
9272}
9273
9274struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9275 enum nl80211_commands cmd,
9276 enum nl80211_attrs attr,
9277 int approxlen)
9278{
f26cbf40 9279 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9280
9281 if (WARN_ON(!rdev->cur_cmd_info))
9282 return NULL;
9283
9284 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9285 rdev->cur_cmd_info->snd_portid,
9286 rdev->cur_cmd_info->snd_seq,
567ffc35 9287 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9288}
9289EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9290
9291int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9292{
9293 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9294 void *hdr = ((void **)skb->cb)[1];
9295 struct nlattr *data = ((void **)skb->cb)[2];
9296
9297 if (WARN_ON(!rdev->cur_cmd_info)) {
9298 kfree_skb(skb);
9299 return -EINVAL;
9300 }
9301
9302 nla_nest_end(skb, data);
9303 genlmsg_end(skb, hdr);
9304 return genlmsg_reply(skb, rdev->cur_cmd_info);
9305}
9306EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9307
9308
fa9ffc74
KP		 9309static int nl80211_set_qos_map(struct sk_buff *skb,
9310 struct genl_info *info)
9311{
9312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9313 struct cfg80211_qos_map *qos_map = NULL;
9314 struct net_device *dev = info->user_ptr[1];
9315 u8 *pos, len, num_des, des_len, des;
9316 int ret;
9317
9318 if (!rdev->ops->set_qos_map)
9319 return -EOPNOTSUPP;
9320
9321 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9322 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9323 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9324
9325 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9326 len > IEEE80211_QOS_MAP_LEN_MAX)
9327 return -EINVAL;
9328
9329 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9330 if (!qos_map)
9331 return -ENOMEM;
9332
9333 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9334 if (num_des) {
9335 des_len = num_des *
9336 sizeof(struct cfg80211_dscp_exception);
9337 memcpy(qos_map->dscp_exception, pos, des_len);
9338 qos_map->num_des = num_des;
9339 for (des = 0; des < num_des; des++) {
9340 if (qos_map->dscp_exception[des].up > 7) {
9341 kfree(qos_map);
9342 return -EINVAL;
9343 }
9344 }
9345 pos += des_len;
9346 }
9347 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9348 }
9349
9350 wdev_lock(dev->ieee80211_ptr);
9351 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9352 if (!ret)
9353 ret = rdev_set_qos_map(rdev, dev, qos_map);
9354 wdev_unlock(dev->ieee80211_ptr);
9355
9356 kfree(qos_map);
9357 return ret;
9358}
9359
4c476991
JB		 9360#define NL80211_FLAG_NEED_WIPHY 0x01
9361#define NL80211_FLAG_NEED_NETDEV 0x02
9362#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9363#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9364#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9365 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9366#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9367/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9368#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9369 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9370
f84f771d 9371static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9372 struct genl_info *info)
9373{
9374 struct cfg80211_registered_device *rdev;
89a54e48 9375 struct wireless_dev *wdev;
4c476991 9376 struct net_device *dev;
4c476991
JB		 9377 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9378
9379 if (rtnl)
9380 rtnl_lock();
9381
9382 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9383 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9384 if (IS_ERR(rdev)) {
9385 if (rtnl)
9386 rtnl_unlock();
9387 return PTR_ERR(rdev);
9388 }
9389 info->user_ptr[0] = rdev;
1bf614ef
JB		 9390 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9391 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9392 ASSERT_RTNL();
9393
89a54e48
JB		 9394 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9395 info->attrs);
9396 if (IS_ERR(wdev)) {
4c476991
JB		 9397 if (rtnl)
9398 rtnl_unlock();
89a54e48 9399 return PTR_ERR(wdev);
4c476991 9400 }
89a54e48 9401
89a54e48 9402 dev = wdev->netdev;
f26cbf40 9403 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9404
1bf614ef
JB		 9405 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9406 if (!dev) {
1bf614ef
JB		 9407 if (rtnl)
9408 rtnl_unlock();
9409 return -EINVAL;
9410 }
9411
9412 info->user_ptr[1] = dev;
9413 } else {
9414 info->user_ptr[1] = wdev;
41265714 9415 }
1bf614ef
JB		 9416
9417 if (dev) {
9418 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9419 !netif_running(dev)) {
1bf614ef
JB		 9420 if (rtnl)
9421 rtnl_unlock();
9422 return -ENETDOWN;
9423 }
9424
9425 dev_hold(dev);
98104fde
JB		 9426 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9427 if (!wdev->p2p_started) {
98104fde
JB		 9428 if (rtnl)
9429 rtnl_unlock();
9430 return -ENETDOWN;
9431 }
41265714 9432 }
89a54e48 9433
4c476991 9434 info->user_ptr[0] = rdev;
4c476991
JB		 9435 }
9436
9437 return 0;
9438}
9439
f84f771d 9440static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9441 struct genl_info *info)
9442{
1bf614ef
JB		 9443 if (info->user_ptr[1]) {
9444 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9445 struct wireless_dev *wdev = info->user_ptr[1];
9446
9447 if (wdev->netdev)
9448 dev_put(wdev->netdev);
9449 } else {
9450 dev_put(info->user_ptr[1]);
9451 }
9452 }
4c476991
JB		 9453 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9454 rtnl_unlock();
9455}
9456
4534de83 9457static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9458 {
9459 .cmd = NL80211_CMD_GET_WIPHY,
9460 .doit = nl80211_get_wiphy,
9461 .dumpit = nl80211_dump_wiphy,
86e8cf98 9462 .done = nl80211_dump_wiphy_done,
55682965
JB		 9463 .policy = nl80211_policy,
9464 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9465 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9466 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9467 },
9468 {
9469 .cmd = NL80211_CMD_SET_WIPHY,
9470 .doit = nl80211_set_wiphy,
9471 .policy = nl80211_policy,
9472 .flags = GENL_ADMIN_PERM,
4c476991 9473 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9474 },
9475 {
9476 .cmd = NL80211_CMD_GET_INTERFACE,
9477 .doit = nl80211_get_interface,
9478 .dumpit = nl80211_dump_interface,
9479 .policy = nl80211_policy,
9480 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9481 .internal_flags = NL80211_FLAG_NEED_WDEV |
9482 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9483 },
9484 {
9485 .cmd = NL80211_CMD_SET_INTERFACE,
9486 .doit = nl80211_set_interface,
9487 .policy = nl80211_policy,
9488 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9489 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9490 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9491 },
9492 {
9493 .cmd = NL80211_CMD_NEW_INTERFACE,
9494 .doit = nl80211_new_interface,
9495 .policy = nl80211_policy,
9496 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9497 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9498 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9499 },
9500 {
9501 .cmd = NL80211_CMD_DEL_INTERFACE,
9502 .doit = nl80211_del_interface,
9503 .policy = nl80211_policy,
41ade00f 9504 .flags = GENL_ADMIN_PERM,
84efbb84 9505 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9506 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9507 },
9508 {
9509 .cmd = NL80211_CMD_GET_KEY,
9510 .doit = nl80211_get_key,
9511 .policy = nl80211_policy,
9512 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9514 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9515 },
9516 {
9517 .cmd = NL80211_CMD_SET_KEY,
9518 .doit = nl80211_set_key,
9519 .policy = nl80211_policy,
9520 .flags = GENL_ADMIN_PERM,
41265714 9521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9522 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9523 },
9524 {
9525 .cmd = NL80211_CMD_NEW_KEY,
9526 .doit = nl80211_new_key,
9527 .policy = nl80211_policy,
9528 .flags = GENL_ADMIN_PERM,
41265714 9529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9530 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9531 },
9532 {
9533 .cmd = NL80211_CMD_DEL_KEY,
9534 .doit = nl80211_del_key,
9535 .policy = nl80211_policy,
55682965 9536 .flags = GENL_ADMIN_PERM,
41265714 9537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9538 NL80211_FLAG_NEED_RTNL,
55682965 9539 },
ed1b6cc7
JB		 9540 {
9541 .cmd = NL80211_CMD_SET_BEACON,
9542 .policy = nl80211_policy,
9543 .flags = GENL_ADMIN_PERM,
8860020e 9544 .doit = nl80211_set_beacon,
2b5f8b0b 9545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9546 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9547 },
9548 {
8860020e 9549 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9550 .policy = nl80211_policy,
9551 .flags = GENL_ADMIN_PERM,
8860020e 9552 .doit = nl80211_start_ap,
2b5f8b0b 9553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9554 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9555 },
9556 {
8860020e 9557 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9558 .policy = nl80211_policy,
9559 .flags = GENL_ADMIN_PERM,
8860020e 9560 .doit = nl80211_stop_ap,
2b5f8b0b 9561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9562 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9563 },
5727ef1b
JB		 9564 {
9565 .cmd = NL80211_CMD_GET_STATION,
9566 .doit = nl80211_get_station,
2ec600d6 9567 .dumpit = nl80211_dump_station,
5727ef1b 9568 .policy = nl80211_policy,
4c476991
JB		 9569 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9570 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9571 },
9572 {
9573 .cmd = NL80211_CMD_SET_STATION,
9574 .doit = nl80211_set_station,
9575 .policy = nl80211_policy,
9576 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9577 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9578 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9579 },
9580 {
9581 .cmd = NL80211_CMD_NEW_STATION,
9582 .doit = nl80211_new_station,
9583 .policy = nl80211_policy,
9584 .flags = GENL_ADMIN_PERM,
41265714 9585 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9586 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9587 },
9588 {
9589 .cmd = NL80211_CMD_DEL_STATION,
9590 .doit = nl80211_del_station,
9591 .policy = nl80211_policy,
2ec600d6 9592 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9593 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9594 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9595 },
9596 {
9597 .cmd = NL80211_CMD_GET_MPATH,
9598 .doit = nl80211_get_mpath,
9599 .dumpit = nl80211_dump_mpath,
9600 .policy = nl80211_policy,
9601 .flags = GENL_ADMIN_PERM,
41265714 9602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9603 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9604 },
9605 {
9606 .cmd = NL80211_CMD_SET_MPATH,
9607 .doit = nl80211_set_mpath,
9608 .policy = nl80211_policy,
9609 .flags = GENL_ADMIN_PERM,
41265714 9610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9611 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9612 },
9613 {
9614 .cmd = NL80211_CMD_NEW_MPATH,
9615 .doit = nl80211_new_mpath,
9616 .policy = nl80211_policy,
9617 .flags = GENL_ADMIN_PERM,
41265714 9618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9619 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9620 },
9621 {
9622 .cmd = NL80211_CMD_DEL_MPATH,
9623 .doit = nl80211_del_mpath,
9624 .policy = nl80211_policy,
9f1ba906 9625 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9627 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9628 },
9629 {
9630 .cmd = NL80211_CMD_SET_BSS,
9631 .doit = nl80211_set_bss,
9632 .policy = nl80211_policy,
b2e1b302 9633 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9635 NL80211_FLAG_NEED_RTNL,
b2e1b302 9636 },
f130347c
LR		 9637 {
9638 .cmd = NL80211_CMD_GET_REG,
9639 .doit = nl80211_get_reg,
9640 .policy = nl80211_policy,
5fe231e8 9641 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9642 /* can be retrieved by unprivileged users */
9643 },
b2e1b302
LR		 9644 {
9645 .cmd = NL80211_CMD_SET_REG,
9646 .doit = nl80211_set_reg,
9647 .policy = nl80211_policy,
9648 .flags = GENL_ADMIN_PERM,
5fe231e8 9649 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9650 },
9651 {
9652 .cmd = NL80211_CMD_REQ_SET_REG,
9653 .doit = nl80211_req_set_reg,
9654 .policy = nl80211_policy,
93da9cc1 9655 .flags = GENL_ADMIN_PERM,
9656 },
9657 {
24bdd9f4
JC		 9658 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9659 .doit = nl80211_get_mesh_config,
93da9cc1 9660 .policy = nl80211_policy,
9661 /* can be retrieved by unprivileged users */
2b5f8b0b 9662 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9663 NL80211_FLAG_NEED_RTNL,
93da9cc1 9664 },
9665 {
24bdd9f4
JC		 9666 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9667 .doit = nl80211_update_mesh_config,
93da9cc1 9668 .policy = nl80211_policy,
9aed3cc1 9669 .flags = GENL_ADMIN_PERM,
29cbe68c 9670 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9671 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9672 },
2a519311
JB		 9673 {
9674 .cmd = NL80211_CMD_TRIGGER_SCAN,
9675 .doit = nl80211_trigger_scan,
9676 .policy = nl80211_policy,
9677 .flags = GENL_ADMIN_PERM,
fd014284 9678 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9679 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9680 },
9681 {
9682 .cmd = NL80211_CMD_GET_SCAN,
9683 .policy = nl80211_policy,
9684 .dumpit = nl80211_dump_scan,
9685 },
807f8a8c
LC		 9686 {
9687 .cmd = NL80211_CMD_START_SCHED_SCAN,
9688 .doit = nl80211_start_sched_scan,
9689 .policy = nl80211_policy,
9690 .flags = GENL_ADMIN_PERM,
9691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9692 NL80211_FLAG_NEED_RTNL,
9693 },
9694 {
9695 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9696 .doit = nl80211_stop_sched_scan,
9697 .policy = nl80211_policy,
9698 .flags = GENL_ADMIN_PERM,
9699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9700 NL80211_FLAG_NEED_RTNL,
9701 },
636a5d36
JM		 9702 {
9703 .cmd = NL80211_CMD_AUTHENTICATE,
9704 .doit = nl80211_authenticate,
9705 .policy = nl80211_policy,
9706 .flags = GENL_ADMIN_PERM,
41265714 9707 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9708 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9709 },
9710 {
9711 .cmd = NL80211_CMD_ASSOCIATE,
9712 .doit = nl80211_associate,
9713 .policy = nl80211_policy,
9714 .flags = GENL_ADMIN_PERM,
41265714 9715 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9716 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9717 },
9718 {
9719 .cmd = NL80211_CMD_DEAUTHENTICATE,
9720 .doit = nl80211_deauthenticate,
9721 .policy = nl80211_policy,
9722 .flags = GENL_ADMIN_PERM,
41265714 9723 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9724 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9725 },
9726 {
9727 .cmd = NL80211_CMD_DISASSOCIATE,
9728 .doit = nl80211_disassociate,
9729 .policy = nl80211_policy,
9730 .flags = GENL_ADMIN_PERM,
41265714 9731 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9732 NL80211_FLAG_NEED_RTNL,
636a5d36 9733 },
04a773ad
JB		 9734 {
9735 .cmd = NL80211_CMD_JOIN_IBSS,
9736 .doit = nl80211_join_ibss,
9737 .policy = nl80211_policy,
9738 .flags = GENL_ADMIN_PERM,
41265714 9739 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9740 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9741 },
9742 {
9743 .cmd = NL80211_CMD_LEAVE_IBSS,
9744 .doit = nl80211_leave_ibss,
9745 .policy = nl80211_policy,
9746 .flags = GENL_ADMIN_PERM,
41265714 9747 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9748 NL80211_FLAG_NEED_RTNL,
04a773ad 9749 },
aff89a9b
JB		 9750#ifdef CONFIG_NL80211_TESTMODE
9751 {
9752 .cmd = NL80211_CMD_TESTMODE,
9753 .doit = nl80211_testmode_do,
71063f0e 9754 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9755 .policy = nl80211_policy,
9756 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9757 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9758 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9759 },
9760#endif
b23aa676
SO		 9761 {
9762 .cmd = NL80211_CMD_CONNECT,
9763 .doit = nl80211_connect,
9764 .policy = nl80211_policy,
9765 .flags = GENL_ADMIN_PERM,
41265714 9766 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9767 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9768 },
9769 {
9770 .cmd = NL80211_CMD_DISCONNECT,
9771 .doit = nl80211_disconnect,
9772 .policy = nl80211_policy,
9773 .flags = GENL_ADMIN_PERM,
41265714 9774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9775 NL80211_FLAG_NEED_RTNL,
b23aa676 9776 },
463d0183
JB		 9777 {
9778 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9779 .doit = nl80211_wiphy_netns,
9780 .policy = nl80211_policy,
9781 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9782 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9783 NL80211_FLAG_NEED_RTNL,
463d0183 9784 },
61fa713c
HS		 9785 {
9786 .cmd = NL80211_CMD_GET_SURVEY,
9787 .policy = nl80211_policy,
9788 .dumpit = nl80211_dump_survey,
9789 },
67fbb16b
SO		 9790 {
9791 .cmd = NL80211_CMD_SET_PMKSA,
9792 .doit = nl80211_setdel_pmksa,
9793 .policy = nl80211_policy,
9794 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9795 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9796 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9797 },
9798 {
9799 .cmd = NL80211_CMD_DEL_PMKSA,
9800 .doit = nl80211_setdel_pmksa,
9801 .policy = nl80211_policy,
9802 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9803 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9804 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9805 },
9806 {
9807 .cmd = NL80211_CMD_FLUSH_PMKSA,
9808 .doit = nl80211_flush_pmksa,
9809 .policy = nl80211_policy,
9810 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9812 NL80211_FLAG_NEED_RTNL,
67fbb16b 9813 },
9588bbd5
JM		 9814 {
9815 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9816 .doit = nl80211_remain_on_channel,
9817 .policy = nl80211_policy,
9818 .flags = GENL_ADMIN_PERM,
71bbc994 9819 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9820 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9821 },
9822 {
9823 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9824 .doit = nl80211_cancel_remain_on_channel,
9825 .policy = nl80211_policy,
9826 .flags = GENL_ADMIN_PERM,
71bbc994 9827 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9828 NL80211_FLAG_NEED_RTNL,
9588bbd5 9829 },
13ae75b1
JM		 9830 {
9831 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9832 .doit = nl80211_set_tx_bitrate_mask,
9833 .policy = nl80211_policy,
9834 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9835 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9836 NL80211_FLAG_NEED_RTNL,
13ae75b1 9837 },
026331c4 9838 {
2e161f78
JB		 9839 .cmd = NL80211_CMD_REGISTER_FRAME,
9840 .doit = nl80211_register_mgmt,
026331c4
JM		 9841 .policy = nl80211_policy,
9842 .flags = GENL_ADMIN_PERM,
71bbc994 9843 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9844 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9845 },
9846 {
2e161f78
JB		 9847 .cmd = NL80211_CMD_FRAME,
9848 .doit = nl80211_tx_mgmt,
026331c4 9849 .policy = nl80211_policy,
f7ca38df 9850 .flags = GENL_ADMIN_PERM,
71bbc994 9851 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9852 NL80211_FLAG_NEED_RTNL,
9853 },
9854 {
9855 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9856 .doit = nl80211_tx_mgmt_cancel_wait,
9857 .policy = nl80211_policy,
026331c4 9858 .flags = GENL_ADMIN_PERM,
71bbc994 9859 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9860 NL80211_FLAG_NEED_RTNL,
026331c4 9861 },
ffb9eb3d
KV		 9862 {
9863 .cmd = NL80211_CMD_SET_POWER_SAVE,
9864 .doit = nl80211_set_power_save,
9865 .policy = nl80211_policy,
9866 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9867 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9868 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9869 },
9870 {
9871 .cmd = NL80211_CMD_GET_POWER_SAVE,
9872 .doit = nl80211_get_power_save,
9873 .policy = nl80211_policy,
9874 /* can be retrieved by unprivileged users */
4c476991
JB		 9875 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9876 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9877 },
d6dc1a38
JO		 9878 {
9879 .cmd = NL80211_CMD_SET_CQM,
9880 .doit = nl80211_set_cqm,
9881 .policy = nl80211_policy,
9882 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9883 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9884 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9885 },
f444de05
JB		 9886 {
9887 .cmd = NL80211_CMD_SET_CHANNEL,
9888 .doit = nl80211_set_channel,
9889 .policy = nl80211_policy,
9890 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9891 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9892 NL80211_FLAG_NEED_RTNL,
f444de05 9893 },
e8347eba
BJ		 9894 {
9895 .cmd = NL80211_CMD_SET_WDS_PEER,
9896 .doit = nl80211_set_wds_peer,
9897 .policy = nl80211_policy,
9898 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9899 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9900 NL80211_FLAG_NEED_RTNL,
e8347eba 9901 },
29cbe68c
JB		 9902 {
9903 .cmd = NL80211_CMD_JOIN_MESH,
9904 .doit = nl80211_join_mesh,
9905 .policy = nl80211_policy,
9906 .flags = GENL_ADMIN_PERM,
9907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9908 NL80211_FLAG_NEED_RTNL,
9909 },
9910 {
9911 .cmd = NL80211_CMD_LEAVE_MESH,
9912 .doit = nl80211_leave_mesh,
9913 .policy = nl80211_policy,
9914 .flags = GENL_ADMIN_PERM,
9915 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9916 NL80211_FLAG_NEED_RTNL,
9917 },
dfb89c56 9918#ifdef CONFIG_PM
ff1b6e69
JB		 9919 {
9920 .cmd = NL80211_CMD_GET_WOWLAN,
9921 .doit = nl80211_get_wowlan,
9922 .policy = nl80211_policy,
9923 /* can be retrieved by unprivileged users */
9924 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9925 NL80211_FLAG_NEED_RTNL,
9926 },
9927 {
9928 .cmd = NL80211_CMD_SET_WOWLAN,
9929 .doit = nl80211_set_wowlan,
9930 .policy = nl80211_policy,
9931 .flags = GENL_ADMIN_PERM,
9932 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9933 NL80211_FLAG_NEED_RTNL,
9934 },
dfb89c56 9935#endif
e5497d76
JB		 9936 {
9937 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9938 .doit = nl80211_set_rekey_data,
9939 .policy = nl80211_policy,
9940 .flags = GENL_ADMIN_PERM,
9941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9942 NL80211_FLAG_NEED_RTNL,
9943 },
109086ce
AN		 9944 {
9945 .cmd = NL80211_CMD_TDLS_MGMT,
9946 .doit = nl80211_tdls_mgmt,
9947 .policy = nl80211_policy,
9948 .flags = GENL_ADMIN_PERM,
9949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9950 NL80211_FLAG_NEED_RTNL,
9951 },
9952 {
9953 .cmd = NL80211_CMD_TDLS_OPER,
9954 .doit = nl80211_tdls_oper,
9955 .policy = nl80211_policy,
9956 .flags = GENL_ADMIN_PERM,
9957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9958 NL80211_FLAG_NEED_RTNL,
9959 },
28946da7
JB		 9960 {
9961 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9962 .doit = nl80211_register_unexpected_frame,
9963 .policy = nl80211_policy,
9964 .flags = GENL_ADMIN_PERM,
9965 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9966 NL80211_FLAG_NEED_RTNL,
9967 },
7f6cf311
JB		 9968 {
9969 .cmd = NL80211_CMD_PROBE_CLIENT,
9970 .doit = nl80211_probe_client,
9971 .policy = nl80211_policy,
9972 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9973 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9974 NL80211_FLAG_NEED_RTNL,
9975 },
5e760230
JB		 9976 {
9977 .cmd = NL80211_CMD_REGISTER_BEACONS,
9978 .doit = nl80211_register_beacons,
9979 .policy = nl80211_policy,
9980 .flags = GENL_ADMIN_PERM,
9981 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9982 NL80211_FLAG_NEED_RTNL,
9983 },
1d9d9213
SW		 9984 {
9985 .cmd = NL80211_CMD_SET_NOACK_MAP,
9986 .doit = nl80211_set_noack_map,
9987 .policy = nl80211_policy,
9988 .flags = GENL_ADMIN_PERM,
9989 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9990 NL80211_FLAG_NEED_RTNL,
9991 },
98104fde
JB		 9992 {
9993 .cmd = NL80211_CMD_START_P2P_DEVICE,
9994 .doit = nl80211_start_p2p_device,
9995 .policy = nl80211_policy,
9996 .flags = GENL_ADMIN_PERM,
9997 .internal_flags = NL80211_FLAG_NEED_WDEV |
9998 NL80211_FLAG_NEED_RTNL,
9999 },
10000 {
10001 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10002 .doit = nl80211_stop_p2p_device,
10003 .policy = nl80211_policy,
10004 .flags = GENL_ADMIN_PERM,
10005 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10006 NL80211_FLAG_NEED_RTNL,
10007 },
f4e583c8
AQ		 10008 {
10009 .cmd = NL80211_CMD_SET_MCAST_RATE,
10010 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10011 .policy = nl80211_policy,
10012 .flags = GENL_ADMIN_PERM,
10013 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10014 NL80211_FLAG_NEED_RTNL,
10015 },
10016 {
10017 .cmd = NL80211_CMD_SET_MAC_ACL,
10018 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10019 .policy = nl80211_policy,
10020 .flags = GENL_ADMIN_PERM,
10021 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10022 NL80211_FLAG_NEED_RTNL,
10023 },
04f39047
SW		 10024 {
10025 .cmd = NL80211_CMD_RADAR_DETECT,
10026 .doit = nl80211_start_radar_detection,
10027 .policy = nl80211_policy,
10028 .flags = GENL_ADMIN_PERM,
10029 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10030 NL80211_FLAG_NEED_RTNL,
10031 },
3713b4e3
JB		 10032 {
10033 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10034 .doit = nl80211_get_protocol_features,
10035 .policy = nl80211_policy,
10036 },
355199e0
JM		 10037 {
10038 .cmd = NL80211_CMD_UPDATE_FT_IES,
10039 .doit = nl80211_update_ft_ies,
10040 .policy = nl80211_policy,
10041 .flags = GENL_ADMIN_PERM,
10042 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10043 NL80211_FLAG_NEED_RTNL,
10044 },
5de17984
AS		 10045 {
10046 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10047 .doit = nl80211_crit_protocol_start,
10048 .policy = nl80211_policy,
10049 .flags = GENL_ADMIN_PERM,
10050 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10051 NL80211_FLAG_NEED_RTNL,
10052 },
10053 {
10054 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10055 .doit = nl80211_crit_protocol_stop,
10056 .policy = nl80211_policy,
10057 .flags = GENL_ADMIN_PERM,
10058 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10059 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10060 },
10061 {
10062 .cmd = NL80211_CMD_GET_COALESCE,
10063 .doit = nl80211_get_coalesce,
10064 .policy = nl80211_policy,
10065 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10066 NL80211_FLAG_NEED_RTNL,
10067 },
10068 {
10069 .cmd = NL80211_CMD_SET_COALESCE,
10070 .doit = nl80211_set_coalesce,
10071 .policy = nl80211_policy,
10072 .flags = GENL_ADMIN_PERM,
10073 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10074 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10075 },
10076 {
10077 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10078 .doit = nl80211_channel_switch,
10079 .policy = nl80211_policy,
10080 .flags = GENL_ADMIN_PERM,
10081 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10082 NL80211_FLAG_NEED_RTNL,
10083 },
ad7e718c
JB		 10084 {
10085 .cmd = NL80211_CMD_VENDOR,
10086 .doit = nl80211_vendor_cmd,
10087 .policy = nl80211_policy,
10088 .flags = GENL_ADMIN_PERM,
10089 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10090 NL80211_FLAG_NEED_RTNL,
10091 },
fa9ffc74
KP		 10092 {
10093 .cmd = NL80211_CMD_SET_QOS_MAP,
10094 .doit = nl80211_set_qos_map,
10095 .policy = nl80211_policy,
10096 .flags = GENL_ADMIN_PERM,
10097 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10098 NL80211_FLAG_NEED_RTNL,
10099 },
55682965 10100};
9588bbd5 10101
55682965
JB		 10102/* notification functions */
10103
10104void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
10105{
10106 struct sk_buff *msg;
86e8cf98 10107 struct nl80211_dump_wiphy_state state = {};
55682965 10108
fd2120ca 10109 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10110 if (!msg)
10111 return;
10112
86e8cf98 10113 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10114 nlmsg_free(msg);
10115 return;
10116 }
10117
68eb5503 10118 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10119 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10120}
10121
362a415d
JB		 10122static int nl80211_add_scan_req(struct sk_buff *msg,
10123 struct cfg80211_registered_device *rdev)
10124{
10125 struct cfg80211_scan_request *req = rdev->scan_req;
10126 struct nlattr *nest;
10127 int i;
10128
10129 if (WARN_ON(!req))
10130 return 0;
10131
10132 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10133 if (!nest)
10134 goto nla_put_failure;
9360ffd1
DM		 10135 for (i = 0; i < req->n_ssids; i++) {
10136 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10137 goto nla_put_failure;
10138 }
362a415d
JB		 10139 nla_nest_end(msg, nest);
10140
10141 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10142 if (!nest)
10143 goto nla_put_failure;
9360ffd1
DM		 10144 for (i = 0; i < req->n_channels; i++) {
10145 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10146 goto nla_put_failure;
10147 }
362a415d
JB		 10148 nla_nest_end(msg, nest);
10149
9360ffd1
DM		 10150 if (req->ie &&
10151 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10152 goto nla_put_failure;
362a415d 10153
ae917c9f
JB		 10154 if (req->flags &&
10155 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10156 goto nla_put_failure;
ed473771 10157
362a415d
JB		 10158 return 0;
10159 nla_put_failure:
10160 return -ENOBUFS;
10161}
10162
a538e2d5
JB		 10163static int nl80211_send_scan_msg(struct sk_buff *msg,
10164 struct cfg80211_registered_device *rdev,
fd014284 10165 struct wireless_dev *wdev,
15e47304 10166 u32 portid, u32 seq, int flags,
a538e2d5 10167 u32 cmd)
2a519311
JB		 10168{
10169 void *hdr;
10170
15e47304 10171 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10172 if (!hdr)
10173 return -1;
10174
9360ffd1 10175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10176 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10177 wdev->netdev->ifindex)) ||
10178 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10179 goto nla_put_failure;
2a519311 10180
362a415d
JB		 10181 /* ignore errors and send incomplete event anyway */
10182 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10183
10184 return genlmsg_end(msg, hdr);
10185
10186 nla_put_failure:
10187 genlmsg_cancel(msg, hdr);
10188 return -EMSGSIZE;
10189}
10190
807f8a8c
LC		 10191static int
10192nl80211_send_sched_scan_msg(struct sk_buff *msg,
10193 struct cfg80211_registered_device *rdev,
10194 struct net_device *netdev,
15e47304 10195 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10196{
10197 void *hdr;
10198
15e47304 10199 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10200 if (!hdr)
10201 return -1;
10202
9360ffd1
DM		 10203 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10204 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10205 goto nla_put_failure;
807f8a8c
LC		 10206
10207 return genlmsg_end(msg, hdr);
10208
10209 nla_put_failure:
10210 genlmsg_cancel(msg, hdr);
10211 return -EMSGSIZE;
10212}
10213
a538e2d5 10214void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10215 struct wireless_dev *wdev)
a538e2d5
JB		 10216{
10217 struct sk_buff *msg;
10218
58050fce 10219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10220 if (!msg)
10221 return;
10222
fd014284 10223 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10224 NL80211_CMD_TRIGGER_SCAN) < 0) {
10225 nlmsg_free(msg);
10226 return;
10227 }
10228
68eb5503 10229 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10230 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10231}
10232
f9d15d16
JB		 10233struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10234 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10235{
10236 struct sk_buff *msg;
10237
fd2120ca 10238 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10239 if (!msg)
f9d15d16 10240 return NULL;
2a519311 10241
fd014284 10242 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10243 aborted ? NL80211_CMD_SCAN_ABORTED :
10244 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10245 nlmsg_free(msg);
f9d15d16 10246 return NULL;
2a519311
JB		 10247 }
10248
f9d15d16 10249 return msg;
2a519311
JB		 10250}
10251
f9d15d16
JB		 10252void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10253 struct sk_buff *msg)
2a519311 10254{
2a519311
JB		 10255 if (!msg)
10256 return;
10257
68eb5503 10258 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10259 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10260}
10261
807f8a8c
LC		 10262void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10263 struct net_device *netdev)
10264{
10265 struct sk_buff *msg;
10266
10267 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10268 if (!msg)
10269 return;
10270
10271 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10272 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10273 nlmsg_free(msg);
10274 return;
10275 }
10276
68eb5503 10277 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10278 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10279}
10280
10281void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10282 struct net_device *netdev, u32 cmd)
10283{
10284 struct sk_buff *msg;
10285
58050fce 10286 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10287 if (!msg)
10288 return;
10289
10290 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10291 nlmsg_free(msg);
10292 return;
10293 }
10294
68eb5503 10295 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10296 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10297}
10298
73d54c9e
LR		 10299/*
10300 * This can happen on global regulatory changes or device specific settings
10301 * based on custom world regulatory domains.
10302 */
10303void nl80211_send_reg_change_event(struct regulatory_request *request)
10304{
10305 struct sk_buff *msg;
10306 void *hdr;
10307
fd2120ca 10308 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10309 if (!msg)
10310 return;
10311
10312 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10313 if (!hdr) {
10314 nlmsg_free(msg);
10315 return;
10316 }
10317
10318 /* Userspace can always count this one always being set */
9360ffd1
DM		 10319 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10320 goto nla_put_failure;
10321
10322 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10323 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10324 NL80211_REGDOM_TYPE_WORLD))
10325 goto nla_put_failure;
10326 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10327 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10328 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10329 goto nla_put_failure;
10330 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10331 request->intersect) {
10332 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10333 NL80211_REGDOM_TYPE_INTERSECTION))
10334 goto nla_put_failure;
10335 } else {
10336 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10337 NL80211_REGDOM_TYPE_COUNTRY) ||
10338 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10339 request->alpha2))
10340 goto nla_put_failure;
10341 }
10342
f4173766 10343 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10344 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10345 goto nla_put_failure;
73d54c9e 10346
3b7b72ee 10347 genlmsg_end(msg, hdr);
73d54c9e 10348
bc43b28c 10349 rcu_read_lock();
68eb5503 10350 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10351 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10352 rcu_read_unlock();
73d54c9e
LR		 10353
10354 return;
10355
10356nla_put_failure:
10357 genlmsg_cancel(msg, hdr);
10358 nlmsg_free(msg);
10359}
10360
6039f6d2
JM		 10361static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10362 struct net_device *netdev,
10363 const u8 *buf, size_t len,
e6d6e342 10364 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10365{
10366 struct sk_buff *msg;
10367 void *hdr;
10368
e6d6e342 10369 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10370 if (!msg)
10371 return;
10372
10373 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10374 if (!hdr) {
10375 nlmsg_free(msg);
10376 return;
10377 }
10378
9360ffd1
DM		 10379 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10380 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10381 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10382 goto nla_put_failure;
6039f6d2 10383
3b7b72ee 10384 genlmsg_end(msg, hdr);
6039f6d2 10385
68eb5503 10386 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10387 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10388 return;
10389
10390 nla_put_failure:
10391 genlmsg_cancel(msg, hdr);
10392 nlmsg_free(msg);
10393}
10394
10395void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10396 struct net_device *netdev, const u8 *buf,
10397 size_t len, gfp_t gfp)
6039f6d2
JM		 10398{
10399 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10400 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10401}
10402
10403void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10404 struct net_device *netdev, const u8 *buf,
e6d6e342 10405 size_t len, gfp_t gfp)
6039f6d2 10406{
e6d6e342
JB		 10407 nl80211_send_mlme_event(rdev, netdev, buf, len,
10408 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10409}
10410
53b46b84 10411void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10412 struct net_device *netdev, const u8 *buf,
10413 size_t len, gfp_t gfp)
6039f6d2
JM		 10414{
10415 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10416 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10417}
10418
53b46b84
JM		 10419void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10420 struct net_device *netdev, const u8 *buf,
e6d6e342 10421 size_t len, gfp_t gfp)
6039f6d2
JM		 10422{
10423 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10424 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10425}
10426
6ff57cf8
JB		 10427void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10428 size_t len)
cf4e594e 10429{
947add36
JB		 10430 struct wireless_dev *wdev = dev->ieee80211_ptr;
10431 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10432 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10433 const struct ieee80211_mgmt *mgmt = (void *)buf;
10434 u32 cmd;
947add36 10435
6ff57cf8
JB		 10436 if (WARN_ON(len < 2))
10437 return;
cf4e594e 10438
6ff57cf8
JB		 10439 if (ieee80211_is_deauth(mgmt->frame_control))
10440 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10441 else
10442 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10443
6ff57cf8
JB		 10444 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10445 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10446}
6ff57cf8 10447EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10448
1b06bb40
LR		 10449static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10450 struct net_device *netdev, int cmd,
e6d6e342 10451 const u8 *addr, gfp_t gfp)
1965c853
JM		 10452{
10453 struct sk_buff *msg;
10454 void *hdr;
10455
e6d6e342 10456 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10457 if (!msg)
10458 return;
10459
10460 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10461 if (!hdr) {
10462 nlmsg_free(msg);
10463 return;
10464 }
10465
9360ffd1
DM		 10466 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10467 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10468 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10469 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10470 goto nla_put_failure;
1965c853 10471
3b7b72ee 10472 genlmsg_end(msg, hdr);
1965c853 10473
68eb5503 10474 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10475 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10476 return;
10477
10478 nla_put_failure:
10479 genlmsg_cancel(msg, hdr);
10480 nlmsg_free(msg);
10481}
10482
10483void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10484 struct net_device *netdev, const u8 *addr,
10485 gfp_t gfp)
1965c853
JM		 10486{
10487 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10488 addr, gfp);
1965c853
JM		 10489}
10490
10491void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10492 struct net_device *netdev, const u8 *addr,
10493 gfp_t gfp)
1965c853 10494{
e6d6e342
JB		 10495 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10496 addr, gfp);
1965c853
JM		 10497}
10498
b23aa676
SO		 10499void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10500 struct net_device *netdev, const u8 *bssid,
10501 const u8 *req_ie, size_t req_ie_len,
10502 const u8 *resp_ie, size_t resp_ie_len,
10503 u16 status, gfp_t gfp)
10504{
10505 struct sk_buff *msg;
10506 void *hdr;
10507
58050fce 10508 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10509 if (!msg)
10510 return;
10511
10512 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10513 if (!hdr) {
10514 nlmsg_free(msg);
10515 return;
10516 }
10517
9360ffd1
DM		 10518 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10519 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10520 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10521 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10522 (req_ie &&
10523 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10524 (resp_ie &&
10525 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10526 goto nla_put_failure;
b23aa676 10527
3b7b72ee 10528 genlmsg_end(msg, hdr);
b23aa676 10529
68eb5503 10530 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10531 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10532 return;
10533
10534 nla_put_failure:
10535 genlmsg_cancel(msg, hdr);
10536 nlmsg_free(msg);
10537
10538}
10539
10540void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10541 struct net_device *netdev, const u8 *bssid,
10542 const u8 *req_ie, size_t req_ie_len,
10543 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10544{
10545 struct sk_buff *msg;
10546 void *hdr;
10547
58050fce 10548 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10549 if (!msg)
10550 return;
10551
10552 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10553 if (!hdr) {
10554 nlmsg_free(msg);
10555 return;
10556 }
10557
9360ffd1
DM		 10558 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10559 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10560 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10561 (req_ie &&
10562 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10563 (resp_ie &&
10564 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10565 goto nla_put_failure;
b23aa676 10566
3b7b72ee 10567 genlmsg_end(msg, hdr);
b23aa676 10568
68eb5503 10569 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10570 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10571 return;
10572
10573 nla_put_failure:
10574 genlmsg_cancel(msg, hdr);
10575 nlmsg_free(msg);
10576
10577}
10578
10579void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10580 struct net_device *netdev, u16 reason,
667503dd 10581 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10582{
10583 struct sk_buff *msg;
10584 void *hdr;
10585
58050fce 10586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10587 if (!msg)
10588 return;
10589
10590 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10591 if (!hdr) {
10592 nlmsg_free(msg);
10593 return;
10594 }
10595
9360ffd1
DM		 10596 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10597 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10598 (from_ap && reason &&
10599 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10600 (from_ap &&
10601 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10602 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10603 goto nla_put_failure;
b23aa676 10604
3b7b72ee 10605 genlmsg_end(msg, hdr);
b23aa676 10606
68eb5503 10607 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10608 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10609 return;
10610
10611 nla_put_failure:
10612 genlmsg_cancel(msg, hdr);
10613 nlmsg_free(msg);
10614
10615}
10616
04a773ad
JB		 10617void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10618 struct net_device *netdev, const u8 *bssid,
10619 gfp_t gfp)
10620{
10621 struct sk_buff *msg;
10622 void *hdr;
10623
fd2120ca 10624 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10625 if (!msg)
10626 return;
10627
10628 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10629 if (!hdr) {
10630 nlmsg_free(msg);
10631 return;
10632 }
10633
9360ffd1
DM		 10634 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10635 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10636 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10637 goto nla_put_failure;
04a773ad 10638
3b7b72ee 10639 genlmsg_end(msg, hdr);
04a773ad 10640
68eb5503 10641 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10642 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10643 return;
10644
10645 nla_put_failure:
10646 genlmsg_cancel(msg, hdr);
10647 nlmsg_free(msg);
10648}
10649
947add36
JB		 10650void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10651 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10652{
947add36 10653 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10654 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10655 struct sk_buff *msg;
10656 void *hdr;
10657
947add36
JB		 10658 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10659 return;
10660
10661 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10662
c93b5e71
JC		 10663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10664 if (!msg)
10665 return;
10666
10667 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10668 if (!hdr) {
10669 nlmsg_free(msg);
10670 return;
10671 }
10672
9360ffd1 10673 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10674 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10675 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10676 (ie_len && ie &&
10677 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10678 goto nla_put_failure;
c93b5e71 10679
3b7b72ee 10680 genlmsg_end(msg, hdr);
c93b5e71 10681
68eb5503 10682 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10683 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10684 return;
10685
10686 nla_put_failure:
10687 genlmsg_cancel(msg, hdr);
10688 nlmsg_free(msg);
10689}
947add36 10690EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10691
a3b8b056
JM		 10692void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10693 struct net_device *netdev, const u8 *addr,
10694 enum nl80211_key_type key_type, int key_id,
e6d6e342 10695 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10696{
10697 struct sk_buff *msg;
10698 void *hdr;
10699
e6d6e342 10700 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10701 if (!msg)
10702 return;
10703
10704 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10705 if (!hdr) {
10706 nlmsg_free(msg);
10707 return;
10708 }
10709
9360ffd1
DM		 10710 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10711 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10712 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10713 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10714 (key_id != -1 &&
10715 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10716 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10717 goto nla_put_failure;
a3b8b056 10718
3b7b72ee 10719 genlmsg_end(msg, hdr);
a3b8b056 10720
68eb5503 10721 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10722 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10723 return;
10724
10725 nla_put_failure:
10726 genlmsg_cancel(msg, hdr);
10727 nlmsg_free(msg);
10728}
10729
6bad8766
LR		 10730void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10731 struct ieee80211_channel *channel_before,
10732 struct ieee80211_channel *channel_after)
10733{
10734 struct sk_buff *msg;
10735 void *hdr;
10736 struct nlattr *nl_freq;
10737
fd2120ca 10738 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10739 if (!msg)
10740 return;
10741
10742 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10743 if (!hdr) {
10744 nlmsg_free(msg);
10745 return;
10746 }
10747
10748 /*
10749 * Since we are applying the beacon hint to a wiphy we know its
10750 * wiphy_idx is valid
10751 */
9360ffd1
DM		 10752 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10753 goto nla_put_failure;
6bad8766
LR		 10754
10755 /* Before */
10756 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10757 if (!nl_freq)
10758 goto nla_put_failure;
cdc89b97 10759 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10760 goto nla_put_failure;
10761 nla_nest_end(msg, nl_freq);
10762
10763 /* After */
10764 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10765 if (!nl_freq)
10766 goto nla_put_failure;
cdc89b97 10767 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10768 goto nla_put_failure;
10769 nla_nest_end(msg, nl_freq);
10770
3b7b72ee 10771 genlmsg_end(msg, hdr);
6bad8766 10772
463d0183 10773 rcu_read_lock();
68eb5503 10774 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10775 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10776 rcu_read_unlock();
6bad8766
LR		 10777
10778 return;
10779
10780nla_put_failure:
10781 genlmsg_cancel(msg, hdr);
10782 nlmsg_free(msg);
10783}
10784
9588bbd5
JM		 10785static void nl80211_send_remain_on_chan_event(
10786 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10787 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10788 struct ieee80211_channel *chan,
9588bbd5
JM		 10789 unsigned int duration, gfp_t gfp)
10790{
10791 struct sk_buff *msg;
10792 void *hdr;
10793
10794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10795 if (!msg)
10796 return;
10797
10798 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10799 if (!hdr) {
10800 nlmsg_free(msg);
10801 return;
10802 }
10803
9360ffd1 10804 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10805 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10806 wdev->netdev->ifindex)) ||
00f53350 10807 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10808 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10809 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10810 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10811 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10812 goto nla_put_failure;
9588bbd5 10813
9360ffd1
DM		 10814 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10815 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10816 goto nla_put_failure;
9588bbd5 10817
3b7b72ee 10818 genlmsg_end(msg, hdr);
9588bbd5 10819
68eb5503 10820 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10821 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10822 return;
10823
10824 nla_put_failure:
10825 genlmsg_cancel(msg, hdr);
10826 nlmsg_free(msg);
10827}
10828
947add36
JB		 10829void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10830 struct ieee80211_channel *chan,
10831 unsigned int duration, gfp_t gfp)
9588bbd5 10832{
947add36 10833 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10834 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10835
10836 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10837 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10838 rdev, wdev, cookie, chan,
42d97a59 10839 duration, gfp);
9588bbd5 10840}
947add36 10841EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10842
947add36
JB		 10843void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10844 struct ieee80211_channel *chan,
10845 gfp_t gfp)
9588bbd5 10846{
947add36 10847 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10848 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10849
10850 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10851 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10852 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10853}
947add36 10854EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10855
947add36
JB		 10856void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10857 struct station_info *sinfo, gfp_t gfp)
98b62183 10858{
947add36 10859 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10860 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10861 struct sk_buff *msg;
10862
947add36
JB		 10863 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10864
58050fce 10865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10866 if (!msg)
10867 return;
10868
66266b3a
JL		 10869 if (nl80211_send_station(msg, 0, 0, 0,
10870 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10871 nlmsg_free(msg);
10872 return;
10873 }
10874
68eb5503 10875 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10876 NL80211_MCGRP_MLME, gfp);
98b62183 10877}
947add36 10878EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10879
947add36 10880void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10881{
947add36 10882 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10883 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10884 struct sk_buff *msg;
10885 void *hdr;
10886
947add36
JB		 10887 trace_cfg80211_del_sta(dev, mac_addr);
10888
58050fce 10889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10890 if (!msg)
10891 return;
10892
10893 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10894 if (!hdr) {
10895 nlmsg_free(msg);
10896 return;
10897 }
10898
9360ffd1
DM		 10899 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10900 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10901 goto nla_put_failure;
ec15e68b 10902
3b7b72ee 10903 genlmsg_end(msg, hdr);
ec15e68b 10904
68eb5503 10905 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10906 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10907 return;
10908
10909 nla_put_failure:
10910 genlmsg_cancel(msg, hdr);
10911 nlmsg_free(msg);
10912}
947add36 10913EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10914
947add36
JB		 10915void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10916 enum nl80211_connect_failed_reason reason,
10917 gfp_t gfp)
ed44a951 10918{
947add36 10919 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10920 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10921 struct sk_buff *msg;
10922 void *hdr;
10923
10924 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10925 if (!msg)
10926 return;
10927
10928 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10929 if (!hdr) {
10930 nlmsg_free(msg);
10931 return;
10932 }
10933
10934 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10935 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10936 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10937 goto nla_put_failure;
10938
10939 genlmsg_end(msg, hdr);
10940
68eb5503 10941 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10942 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10943 return;
10944
10945 nla_put_failure:
10946 genlmsg_cancel(msg, hdr);
10947 nlmsg_free(msg);
10948}
947add36 10949EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10950
b92ab5d8
JB		 10951static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10952 const u8 *addr, gfp_t gfp)
28946da7
JB		 10953{
10954 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10955 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10956 struct sk_buff *msg;
10957 void *hdr;
15e47304 10958 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10959
15e47304 10960 if (!nlportid)
28946da7
JB		 10961 return false;
10962
10963 msg = nlmsg_new(100, gfp);
10964 if (!msg)
10965 return true;
10966
b92ab5d8 10967 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10968 if (!hdr) {
10969 nlmsg_free(msg);
10970 return true;
10971 }
10972
9360ffd1
DM		 10973 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10974 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10975 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10976 goto nla_put_failure;
28946da7 10977
9c90a9f6 10978 genlmsg_end(msg, hdr);
15e47304 10979 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10980 return true;
10981
10982 nla_put_failure:
10983 genlmsg_cancel(msg, hdr);
10984 nlmsg_free(msg);
10985 return true;
10986}
10987
947add36
JB		 10988bool cfg80211_rx_spurious_frame(struct net_device *dev,
10989 const u8 *addr, gfp_t gfp)
b92ab5d8 10990{
947add36
JB		 10991 struct wireless_dev *wdev = dev->ieee80211_ptr;
10992 bool ret;
10993
10994 trace_cfg80211_rx_spurious_frame(dev, addr);
10995
10996 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10997 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10998 trace_cfg80211_return_bool(false);
10999 return false;
11000 }
11001 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11002 addr, gfp);
11003 trace_cfg80211_return_bool(ret);
11004 return ret;
b92ab5d8 11005}
947add36 11006EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11007
947add36
JB		 11008bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11009 const u8 *addr, gfp_t gfp)
b92ab5d8 11010{
947add36
JB		 11011 struct wireless_dev *wdev = dev->ieee80211_ptr;
11012 bool ret;
11013
11014 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11015
11016 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11017 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11018 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11019 trace_cfg80211_return_bool(false);
11020 return false;
11021 }
11022 ret = __nl80211_unexpected_frame(dev,
11023 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11024 addr, gfp);
11025 trace_cfg80211_return_bool(ret);
11026 return ret;
b92ab5d8 11027}
947add36 11028EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11029
2e161f78 11030int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11031 struct wireless_dev *wdev, u32 nlportid,
804483e9 11032 int freq, int sig_dbm,
19504cf5 11033 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11034{
71bbc994 11035 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11036 struct sk_buff *msg;
11037 void *hdr;
026331c4
JM		 11038
11039 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11040 if (!msg)
11041 return -ENOMEM;
11042
2e161f78 11043 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11044 if (!hdr) {
11045 nlmsg_free(msg);
11046 return -ENOMEM;
11047 }
11048
9360ffd1 11049 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11050 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11051 netdev->ifindex)) ||
a838490b 11052 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11053 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11054 (sig_dbm &&
11055 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11056 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11057 (flags &&
11058 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11059 goto nla_put_failure;
026331c4 11060
3b7b72ee 11061 genlmsg_end(msg, hdr);
026331c4 11062
15e47304 11063 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11064
11065 nla_put_failure:
11066 genlmsg_cancel(msg, hdr);
11067 nlmsg_free(msg);
11068 return -ENOBUFS;
11069}
11070
947add36
JB		 11071void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11072 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11073{
947add36 11074 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11075 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11076 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11077 struct sk_buff *msg;
11078 void *hdr;
11079
947add36
JB		 11080 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11081
026331c4
JM		 11082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11083 if (!msg)
11084 return;
11085
2e161f78 11086 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11087 if (!hdr) {
11088 nlmsg_free(msg);
11089 return;
11090 }
11091
9360ffd1 11092 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11093 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11094 netdev->ifindex)) ||
a838490b 11095 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11096 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11097 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11098 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11099 goto nla_put_failure;
026331c4 11100
3b7b72ee 11101 genlmsg_end(msg, hdr);
026331c4 11102
68eb5503 11103 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11104 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11105 return;
11106
11107 nla_put_failure:
11108 genlmsg_cancel(msg, hdr);
11109 nlmsg_free(msg);
11110}
947add36 11111EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11112
947add36
JB		 11113void cfg80211_cqm_rssi_notify(struct net_device *dev,
11114 enum nl80211_cqm_rssi_threshold_event rssi_event,
11115 gfp_t gfp)
d6dc1a38 11116{
947add36
JB		 11117 struct wireless_dev *wdev = dev->ieee80211_ptr;
11118 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11119 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11120 struct sk_buff *msg;
11121 struct nlattr *pinfoattr;
11122 void *hdr;
11123
947add36
JB		 11124 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11125
58050fce 11126 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11127 if (!msg)
11128 return;
11129
11130 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11131 if (!hdr) {
11132 nlmsg_free(msg);
11133 return;
11134 }
11135
9360ffd1 11136 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11137 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11138 goto nla_put_failure;
d6dc1a38
JO		 11139
11140 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11141 if (!pinfoattr)
11142 goto nla_put_failure;
11143
9360ffd1
DM		 11144 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11145 rssi_event))
11146 goto nla_put_failure;
d6dc1a38
JO		 11147
11148 nla_nest_end(msg, pinfoattr);
11149
3b7b72ee 11150 genlmsg_end(msg, hdr);
d6dc1a38 11151
68eb5503 11152 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11153 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11154 return;
11155
11156 nla_put_failure:
11157 genlmsg_cancel(msg, hdr);
11158 nlmsg_free(msg);
11159}
947add36 11160EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11161
947add36
JB		 11162static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11163 struct net_device *netdev, const u8 *bssid,
11164 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11165{
11166 struct sk_buff *msg;
11167 struct nlattr *rekey_attr;
11168 void *hdr;
11169
58050fce 11170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11171 if (!msg)
11172 return;
11173
11174 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11175 if (!hdr) {
11176 nlmsg_free(msg);
11177 return;
11178 }
11179
9360ffd1
DM		 11180 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11181 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11182 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11183 goto nla_put_failure;
e5497d76
JB		 11184
11185 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11186 if (!rekey_attr)
11187 goto nla_put_failure;
11188
9360ffd1
DM		 11189 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11190 NL80211_REPLAY_CTR_LEN, replay_ctr))
11191 goto nla_put_failure;
e5497d76
JB		 11192
11193 nla_nest_end(msg, rekey_attr);
11194
3b7b72ee 11195 genlmsg_end(msg, hdr);
e5497d76 11196
68eb5503 11197 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11198 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11199 return;
11200
11201 nla_put_failure:
11202 genlmsg_cancel(msg, hdr);
11203 nlmsg_free(msg);
11204}
11205
947add36
JB		 11206void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11207 const u8 *replay_ctr, gfp_t gfp)
11208{
11209 struct wireless_dev *wdev = dev->ieee80211_ptr;
11210 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11211 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11212
11213 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11214 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11215}
11216EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11217
11218static void
11219nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11220 struct net_device *netdev, int index,
11221 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11222{
11223 struct sk_buff *msg;
11224 struct nlattr *attr;
11225 void *hdr;
11226
58050fce 11227 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11228 if (!msg)
11229 return;
11230
11231 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11232 if (!hdr) {
11233 nlmsg_free(msg);
11234 return;
11235 }
11236
9360ffd1
DM		 11237 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11238 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11239 goto nla_put_failure;
c9df56b4
JM		 11240
11241 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11242 if (!attr)
11243 goto nla_put_failure;
11244
9360ffd1
DM		 11245 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11246 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11247 (preauth &&
11248 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11249 goto nla_put_failure;
c9df56b4
JM		 11250
11251 nla_nest_end(msg, attr);
11252
3b7b72ee 11253 genlmsg_end(msg, hdr);
c9df56b4 11254
68eb5503 11255 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11256 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11257 return;
11258
11259 nla_put_failure:
11260 genlmsg_cancel(msg, hdr);
11261 nlmsg_free(msg);
11262}
11263
947add36
JB		 11264void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11265 const u8 *bssid, bool preauth, gfp_t gfp)
11266{
11267 struct wireless_dev *wdev = dev->ieee80211_ptr;
11268 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11269 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11270
11271 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11272 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11273}
11274EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11275
11276static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11277 struct net_device *netdev,
11278 struct cfg80211_chan_def *chandef,
11279 gfp_t gfp)
5314526b
TP		 11280{
11281 struct sk_buff *msg;
11282 void *hdr;
11283
58050fce 11284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11285 if (!msg)
11286 return;
11287
11288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11289 if (!hdr) {
11290 nlmsg_free(msg);
11291 return;
11292 }
11293
683b6d3b
JB		 11294 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11295 goto nla_put_failure;
11296
11297 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11298 goto nla_put_failure;
5314526b
TP		 11299
11300 genlmsg_end(msg, hdr);
11301
68eb5503 11302 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11303 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11304 return;
11305
11306 nla_put_failure:
11307 genlmsg_cancel(msg, hdr);
11308 nlmsg_free(msg);
11309}
11310
947add36
JB		 11311void cfg80211_ch_switch_notify(struct net_device *dev,
11312 struct cfg80211_chan_def *chandef)
84f10708 11313{
947add36
JB		 11314 struct wireless_dev *wdev = dev->ieee80211_ptr;
11315 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11316 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11317
e487eaeb 11318 ASSERT_WDEV_LOCK(wdev);
947add36 11319
e487eaeb 11320 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11321
11322 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11323 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11324 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11325 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11326 return;
947add36 11327
9e0e2961 11328 wdev->chandef = *chandef;
96f55f12 11329 wdev->preset_chandef = *chandef;
947add36 11330 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11331}
11332EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11333
11334void cfg80211_cqm_txe_notify(struct net_device *dev,
11335 const u8 *peer, u32 num_packets,
11336 u32 rate, u32 intvl, gfp_t gfp)
11337{
11338 struct wireless_dev *wdev = dev->ieee80211_ptr;
11339 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11340 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11341 struct sk_buff *msg;
11342 struct nlattr *pinfoattr;
11343 void *hdr;
11344
11345 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11346 if (!msg)
11347 return;
11348
11349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11350 if (!hdr) {
11351 nlmsg_free(msg);
11352 return;
11353 }
11354
11355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11356 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11357 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11358 goto nla_put_failure;
11359
11360 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11361 if (!pinfoattr)
11362 goto nla_put_failure;
11363
11364 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11365 goto nla_put_failure;
11366
11367 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11368 goto nla_put_failure;
11369
11370 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11371 goto nla_put_failure;
11372
11373 nla_nest_end(msg, pinfoattr);
11374
11375 genlmsg_end(msg, hdr);
11376
68eb5503 11377 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11378 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11379 return;
11380
11381 nla_put_failure:
11382 genlmsg_cancel(msg, hdr);
11383 nlmsg_free(msg);
11384}
947add36 11385EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11386
04f39047
SW		 11387void
11388nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11389 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11390 enum nl80211_radar_event event,
11391 struct net_device *netdev, gfp_t gfp)
11392{
11393 struct sk_buff *msg;
11394 void *hdr;
11395
11396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11397 if (!msg)
11398 return;
11399
11400 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11401 if (!hdr) {
11402 nlmsg_free(msg);
11403 return;
11404 }
11405
11406 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11407 goto nla_put_failure;
11408
11409 /* NOP and radar events don't need a netdev parameter */
11410 if (netdev) {
11411 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11412
11413 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11414 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11415 goto nla_put_failure;
11416 }
11417
11418 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11419 goto nla_put_failure;
11420
11421 if (nl80211_send_chandef(msg, chandef))
11422 goto nla_put_failure;
11423
9c90a9f6 11424 genlmsg_end(msg, hdr);
04f39047 11425
68eb5503 11426 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11427 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11428 return;
11429
11430 nla_put_failure:
11431 genlmsg_cancel(msg, hdr);
11432 nlmsg_free(msg);
11433}
11434
947add36
JB		 11435void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11436 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11437{
947add36
JB		 11438 struct wireless_dev *wdev = dev->ieee80211_ptr;
11439 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11440 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11441 struct sk_buff *msg;
11442 struct nlattr *pinfoattr;
11443 void *hdr;
11444
947add36
JB		 11445 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11446
58050fce 11447 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11448 if (!msg)
11449 return;
11450
11451 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11452 if (!hdr) {
11453 nlmsg_free(msg);
11454 return;
11455 }
11456
9360ffd1 11457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11458 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11459 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11460 goto nla_put_failure;
c063dbf5
JB		 11461
11462 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11463 if (!pinfoattr)
11464 goto nla_put_failure;
11465
9360ffd1
DM		 11466 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11467 goto nla_put_failure;
c063dbf5
JB		 11468
11469 nla_nest_end(msg, pinfoattr);
11470
3b7b72ee 11471 genlmsg_end(msg, hdr);
c063dbf5 11472
68eb5503 11473 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11474 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11475 return;
11476
11477 nla_put_failure:
11478 genlmsg_cancel(msg, hdr);
11479 nlmsg_free(msg);
11480}
947add36 11481EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11482
7f6cf311
JB		 11483void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11484 u64 cookie, bool acked, gfp_t gfp)
11485{
11486 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11487 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11488 struct sk_buff *msg;
11489 void *hdr;
7f6cf311 11490
4ee3e063
BL		 11491 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11492
58050fce 11493 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11494
7f6cf311
JB		 11495 if (!msg)
11496 return;
11497
11498 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11499 if (!hdr) {
11500 nlmsg_free(msg);
11501 return;
11502 }
11503
9360ffd1
DM		 11504 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11505 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11506 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11507 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11508 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11509 goto nla_put_failure;
7f6cf311 11510
9c90a9f6 11511 genlmsg_end(msg, hdr);
7f6cf311 11512
68eb5503 11513 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11514 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11515 return;
11516
11517 nla_put_failure:
11518 genlmsg_cancel(msg, hdr);
11519 nlmsg_free(msg);
11520}
11521EXPORT_SYMBOL(cfg80211_probe_status);
11522
5e760230
JB		 11523void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11524 const u8 *frame, size_t len,
37c73b5f 11525 int freq, int sig_dbm)
5e760230 11526{
f26cbf40 11527 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11528 struct sk_buff *msg;
11529 void *hdr;
37c73b5f 11530 struct cfg80211_beacon_registration *reg;
5e760230 11531
4ee3e063
BL		 11532 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11533
37c73b5f
BG		 11534 spin_lock_bh(&rdev->beacon_registrations_lock);
11535 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11536 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11537 if (!msg) {
11538 spin_unlock_bh(&rdev->beacon_registrations_lock);
11539 return;
11540 }
5e760230 11541
37c73b5f
BG		 11542 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11543 if (!hdr)
11544 goto nla_put_failure;
5e760230 11545
37c73b5f
BG		 11546 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11547 (freq &&
11548 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11549 (sig_dbm &&
11550 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11551 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11552 goto nla_put_failure;
5e760230 11553
37c73b5f 11554 genlmsg_end(msg, hdr);
5e760230 11555
37c73b5f
BG		 11556 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11557 }
11558 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11559 return;
11560
11561 nla_put_failure:
37c73b5f
BG		 11562 spin_unlock_bh(&rdev->beacon_registrations_lock);
11563 if (hdr)
11564 genlmsg_cancel(msg, hdr);
5e760230
JB		 11565 nlmsg_free(msg);
11566}
11567EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11568
cd8f7cb4
JB		 11569#ifdef CONFIG_PM
11570void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11571 struct cfg80211_wowlan_wakeup *wakeup,
11572 gfp_t gfp)
11573{
f26cbf40 11574 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11575 struct sk_buff *msg;
11576 void *hdr;
9c90a9f6 11577 int size = 200;
cd8f7cb4
JB		 11578
11579 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11580
11581 if (wakeup)
11582 size += wakeup->packet_present_len;
11583
11584 msg = nlmsg_new(size, gfp);
11585 if (!msg)
11586 return;
11587
11588 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11589 if (!hdr)
11590 goto free_msg;
11591
11592 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11593 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11594 goto free_msg;
11595
11596 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11597 wdev->netdev->ifindex))
11598 goto free_msg;
11599
11600 if (wakeup) {
11601 struct nlattr *reasons;
11602
11603 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11604 if (!reasons)
11605 goto free_msg;
cd8f7cb4
JB		 11606
11607 if (wakeup->disconnect &&
11608 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11609 goto free_msg;
11610 if (wakeup->magic_pkt &&
11611 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11612 goto free_msg;
11613 if (wakeup->gtk_rekey_failure &&
11614 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11615 goto free_msg;
11616 if (wakeup->eap_identity_req &&
11617 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11618 goto free_msg;
11619 if (wakeup->four_way_handshake &&
11620 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11621 goto free_msg;
11622 if (wakeup->rfkill_release &&
11623 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11624 goto free_msg;
11625
11626 if (wakeup->pattern_idx >= 0 &&
11627 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11628 wakeup->pattern_idx))
11629 goto free_msg;
11630
ae917c9f
JB		 11631 if (wakeup->tcp_match &&
11632 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11633 goto free_msg;
2a0e047e 11634
ae917c9f
JB		 11635 if (wakeup->tcp_connlost &&
11636 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11637 goto free_msg;
2a0e047e 11638
ae917c9f
JB		 11639 if (wakeup->tcp_nomoretokens &&
11640 nla_put_flag(msg,
11641 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11642 goto free_msg;
2a0e047e 11643
cd8f7cb4
JB		 11644 if (wakeup->packet) {
11645 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11646 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11647
11648 if (!wakeup->packet_80211) {
11649 pkt_attr =
11650 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11651 len_attr =
11652 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11653 }
11654
11655 if (wakeup->packet_len &&
11656 nla_put_u32(msg, len_attr, wakeup->packet_len))
11657 goto free_msg;
11658
11659 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11660 wakeup->packet))
11661 goto free_msg;
11662 }
11663
11664 nla_nest_end(msg, reasons);
11665 }
11666
9c90a9f6 11667 genlmsg_end(msg, hdr);
cd8f7cb4 11668
68eb5503 11669 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11670 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11671 return;
11672
11673 free_msg:
11674 nlmsg_free(msg);
11675}
11676EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11677#endif
11678
3475b094
JM		 11679void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11680 enum nl80211_tdls_operation oper,
11681 u16 reason_code, gfp_t gfp)
11682{
11683 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11684 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11685 struct sk_buff *msg;
11686 void *hdr;
3475b094
JM		 11687
11688 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11689 reason_code);
11690
11691 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11692 if (!msg)
11693 return;
11694
11695 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11696 if (!hdr) {
11697 nlmsg_free(msg);
11698 return;
11699 }
11700
11701 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11702 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11703 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11704 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11705 (reason_code > 0 &&
11706 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11707 goto nla_put_failure;
11708
9c90a9f6 11709 genlmsg_end(msg, hdr);
3475b094 11710
68eb5503 11711 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11712 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11713 return;
11714
11715 nla_put_failure:
11716 genlmsg_cancel(msg, hdr);
11717 nlmsg_free(msg);
11718}
11719EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11720
026331c4
JM		 11721static int nl80211_netlink_notify(struct notifier_block * nb,
11722 unsigned long state,
11723 void *_notify)
11724{
11725 struct netlink_notify *notify = _notify;
11726 struct cfg80211_registered_device *rdev;
11727 struct wireless_dev *wdev;
37c73b5f 11728 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11729
11730 if (state != NETLINK_URELEASE)
11731 return NOTIFY_DONE;
11732
11733 rcu_read_lock();
11734
5e760230 11735 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11736 bool schedule_destroy_work = false;
11737
11738 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11739 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11740
78f22b6a
JB		 11741 if (wdev->owner_nlportid == notify->portid)
11742 schedule_destroy_work = true;
11743 }
11744
37c73b5f
BG		 11745 spin_lock_bh(&rdev->beacon_registrations_lock);
11746 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11747 list) {
11748 if (reg->nlportid == notify->portid) {
11749 list_del(&reg->list);
11750 kfree(reg);
11751 break;
11752 }
11753 }
11754 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11755
11756 if (schedule_destroy_work) {
11757 struct cfg80211_iface_destroy *destroy;
11758
11759 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11760 if (destroy) {
11761 destroy->nlportid = notify->portid;
11762 spin_lock(&rdev->destroy_list_lock);
11763 list_add(&destroy->list, &rdev->destroy_list);
11764 spin_unlock(&rdev->destroy_list_lock);
11765 schedule_work(&rdev->destroy_work);
11766 }
11767 }
5e760230 11768 }
026331c4
JM		 11769
11770 rcu_read_unlock();
11771
6784c7db 11772 return NOTIFY_OK;
026331c4
JM		 11773}
11774
11775static struct notifier_block nl80211_netlink_notifier = {
11776 .notifier_call = nl80211_netlink_notify,
11777};
11778
355199e0
JM		 11779void cfg80211_ft_event(struct net_device *netdev,
11780 struct cfg80211_ft_event_params *ft_event)
11781{
11782 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11783 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11784 struct sk_buff *msg;
11785 void *hdr;
355199e0
JM		 11786
11787 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11788
11789 if (!ft_event->target_ap)
11790 return;
11791
11792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11793 if (!msg)
11794 return;
11795
11796 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11797 if (!hdr)
11798 goto out;
355199e0 11799
ae917c9f
JB		 11800 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11801 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11802 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11803 goto out;
355199e0 11804
ae917c9f
JB		 11805 if (ft_event->ies &&
11806 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11807 goto out;
11808 if (ft_event->ric_ies &&
11809 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11810 ft_event->ric_ies))
11811 goto out;
355199e0 11812
9c90a9f6 11813 genlmsg_end(msg, hdr);
355199e0 11814
68eb5503 11815 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11816 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11817 return;
11818 out:
11819 nlmsg_free(msg);
355199e0
JM		 11820}
11821EXPORT_SYMBOL(cfg80211_ft_event);
11822
5de17984
AS		 11823void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11824{
11825 struct cfg80211_registered_device *rdev;
11826 struct sk_buff *msg;
11827 void *hdr;
11828 u32 nlportid;
11829
f26cbf40 11830 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11831 if (!rdev->crit_proto_nlportid)
11832 return;
11833
11834 nlportid = rdev->crit_proto_nlportid;
11835 rdev->crit_proto_nlportid = 0;
11836
11837 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11838 if (!msg)
11839 return;
11840
11841 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11842 if (!hdr)
11843 goto nla_put_failure;
11844
11845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11846 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11847 goto nla_put_failure;
11848
11849 genlmsg_end(msg, hdr);
11850
11851 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11852 return;
11853
11854 nla_put_failure:
11855 if (hdr)
11856 genlmsg_cancel(msg, hdr);
11857 nlmsg_free(msg);
11858
11859}
11860EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11861
348baf0e
JB		 11862void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11863{
11864 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11865 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11866 struct sk_buff *msg;
11867 void *hdr;
11868
11869 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11870 if (!msg)
11871 return;
11872
11873 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11874 if (!hdr)
11875 goto out;
11876
11877 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11878 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11879 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11880 goto out;
11881
11882 genlmsg_end(msg, hdr);
11883
11884 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11885 NL80211_MCGRP_MLME, GFP_KERNEL);
11886 return;
11887 out:
11888 nlmsg_free(msg);
11889}
11890
55682965
JB		 11891/* initialisation/exit functions */
11892
11893int nl80211_init(void)
11894{
0d63cbb5 11895 int err;
55682965 11896
2a94fe48
JB		 11897 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11898 nl80211_mcgrps);
55682965
JB		 11899 if (err)
11900 return err;
11901
026331c4
JM		 11902 err = netlink_register_notifier(&nl80211_netlink_notifier);
11903 if (err)
11904 goto err_out;
11905
55682965
JB		 11906 return 0;
11907 err_out:
11908 genl_unregister_family(&nl80211_fam);
11909 return err;
11910}
11911
11912void nl80211_exit(void)
11913{
026331c4 11914 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11915 genl_unregister_family(&nl80211_fam);
11916}
ubuntu-zesty-kernel mirror