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mac80211: handle failed restart/resume better
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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 },
374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
c01fc9ad
SD		 376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
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 },
55682965
JB		 389};
390
e31b8213 391/* policy for the key attributes */
b54452b0 392static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 393 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 394 [NL80211_KEY_IDX] = { .type = NLA_U8 },
395 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 396 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 397 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
398 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 399 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 400 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
401};
402
403/* policy for the key default flags */
404static const struct nla_policy
405nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
406 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 408};
409
ff1b6e69
JB		 410/* policy for WoWLAN attributes */
411static const struct nla_policy
412nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
413 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 417 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 421 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
422};
423
424static const struct nla_policy
425nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
426 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
427 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
428 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
429 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
430 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
431 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
432 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
433 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
434 },
435 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
436 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
437 },
438 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
440 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 441};
442
be29b99a
AK		 443/* policy for coalesce rule attributes */
444static const struct nla_policy
445nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
446 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
447 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
448 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
449};
450
e5497d76
JB		 451/* policy for GTK rekey offload attributes */
452static const struct nla_policy
453nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
454 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
455 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
456 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
457};
458
a1f1c21c
LC		 459static const struct nla_policy
460nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 461 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 462 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 463 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 464};
465
97990a06
JB		 466static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
467 struct netlink_callback *cb,
468 struct cfg80211_registered_device **rdev,
469 struct wireless_dev **wdev)
a043897a 470{
97990a06 471 int err;
a043897a 472
97990a06 473 rtnl_lock();
a043897a 474
97990a06
JB		 475 if (!cb->args[0]) {
476 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
477 nl80211_fam.attrbuf, nl80211_fam.maxattr,
478 nl80211_policy);
479 if (err)
480 goto out_unlock;
67748893 481
97990a06
JB		 482 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
483 nl80211_fam.attrbuf);
484 if (IS_ERR(*wdev)) {
485 err = PTR_ERR(*wdev);
486 goto out_unlock;
487 }
f26cbf40 488 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 489 /* 0 is the first index - add 1 to parse only once */
490 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 491 cb->args[1] = (*wdev)->identifier;
492 } else {
c319d50b
JB		 493 /* subtract the 1 again here */
494 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 495 struct wireless_dev *tmp;
67748893 496
97990a06
JB		 497 if (!wiphy) {
498 err = -ENODEV;
499 goto out_unlock;
500 }
f26cbf40 501 *rdev = wiphy_to_rdev(wiphy);
97990a06 502 *wdev = NULL;
67748893 503
97990a06
JB		 504 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
505 if (tmp->identifier == cb->args[1]) {
506 *wdev = tmp;
507 break;
508 }
509 }
67748893 510
97990a06
JB		 511 if (!*wdev) {
512 err = -ENODEV;
513 goto out_unlock;
514 }
67748893
JB		 515 }
516
67748893 517 return 0;
97990a06 518 out_unlock:
67748893
JB		 519 rtnl_unlock();
520 return err;
521}
522
97990a06 523static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 524{
67748893
JB		 525 rtnl_unlock();
526}
527
f4a11bb0
JB		 528/* IE validation */
529static bool is_valid_ie_attr(const struct nlattr *attr)
530{
531 const u8 *pos;
532 int len;
533
534 if (!attr)
535 return true;
536
537 pos = nla_data(attr);
538 len = nla_len(attr);
539
540 while (len) {
541 u8 elemlen;
542
543 if (len < 2)
544 return false;
545 len -= 2;
546
547 elemlen = pos[1];
548 if (elemlen > len)
549 return false;
550
551 len -= elemlen;
552 pos += 2 + elemlen;
553 }
554
555 return true;
556}
557
55682965 558/* message building helper */
15e47304 559static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 560 int flags, u8 cmd)
561{
562 /* since there is no private header just add the generic one */
15e47304 563 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 564}
565
5dab3b8a 566static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 567 struct ieee80211_channel *chan,
568 bool large)
5dab3b8a 569{
ea077c1c
RL		 570 /* Some channels must be completely excluded from the
571 * list to protect old user-space tools from breaking
572 */
573 if (!large && chan->flags &
574 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
575 return 0;
576
9360ffd1
DM		 577 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
578 chan->center_freq))
579 goto nla_put_failure;
5dab3b8a 580
9360ffd1
DM		 581 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
582 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
583 goto nla_put_failure;
8fe02e16
LR		 584 if (chan->flags & IEEE80211_CHAN_NO_IR) {
585 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
586 goto nla_put_failure;
587 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
588 goto nla_put_failure;
589 }
cdc89b97
JB		 590 if (chan->flags & IEEE80211_CHAN_RADAR) {
591 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
592 goto nla_put_failure;
593 if (large) {
594 u32 time;
595
596 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
597
598 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
599 chan->dfs_state))
600 goto nla_put_failure;
601 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
602 time))
603 goto nla_put_failure;
089027e5
JD		 604 if (nla_put_u32(msg,
605 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
606 chan->dfs_cac_ms))
607 goto nla_put_failure;
cdc89b97
JB		 608 }
609 }
5dab3b8a 610
fe1abafd
JB		 611 if (large) {
612 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
613 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
614 goto nla_put_failure;
615 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
616 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
617 goto nla_put_failure;
618 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
619 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
620 goto nla_put_failure;
621 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
622 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
623 goto nla_put_failure;
570dbde1
DS		 624 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
629 goto nla_put_failure;
ea077c1c
RL		 630 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
635 goto nla_put_failure;
fe1abafd
JB		 636 }
637
9360ffd1
DM		 638 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
639 DBM_TO_MBM(chan->max_power)))
640 goto nla_put_failure;
5dab3b8a
LR		 641
642 return 0;
643
644 nla_put_failure:
645 return -ENOBUFS;
646}
647
55682965
JB		 648/* netlink command implementations */
649
b9454e83
JB		 650struct key_parse {
651 struct key_params p;
652 int idx;
e31b8213 653 int type;
b9454e83 654 bool def, defmgmt;
dbd2fd65 655 bool def_uni, def_multi;
b9454e83
JB		 656};
657
658static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
659{
660 struct nlattr *tb[NL80211_KEY_MAX + 1];
661 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
662 nl80211_key_policy);
663 if (err)
664 return err;
665
666 k->def = !!tb[NL80211_KEY_DEFAULT];
667 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
668
dbd2fd65
JB		 669 if (k->def) {
670 k->def_uni = true;
671 k->def_multi = true;
672 }
673 if (k->defmgmt)
674 k->def_multi = true;
675
b9454e83
JB		 676 if (tb[NL80211_KEY_IDX])
677 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
678
679 if (tb[NL80211_KEY_DATA]) {
680 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
681 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
682 }
683
684 if (tb[NL80211_KEY_SEQ]) {
685 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
686 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
687 }
688
689 if (tb[NL80211_KEY_CIPHER])
690 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
691
e31b8213
JB		 692 if (tb[NL80211_KEY_TYPE]) {
693 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
694 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
695 return -EINVAL;
696 }
697
dbd2fd65
JB		 698 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
699 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 700 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
701 tb[NL80211_KEY_DEFAULT_TYPES],
702 nl80211_key_default_policy);
dbd2fd65
JB		 703 if (err)
704 return err;
705
706 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
707 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
708 }
709
b9454e83
JB		 710 return 0;
711}
712
713static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
714{
715 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
716 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
717 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
718 }
719
720 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
721 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
722 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
723 }
724
725 if (info->attrs[NL80211_ATTR_KEY_IDX])
726 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
727
728 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
729 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
730
731 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
732 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
733
dbd2fd65
JB		 734 if (k->def) {
735 k->def_uni = true;
736 k->def_multi = true;
737 }
738 if (k->defmgmt)
739 k->def_multi = true;
740
e31b8213
JB		 741 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
742 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
743 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
744 return -EINVAL;
745 }
746
dbd2fd65
JB		 747 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
748 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
749 int err = nla_parse_nested(
750 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
751 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
752 nl80211_key_default_policy);
753 if (err)
754 return err;
755
756 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
757 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
758 }
759
b9454e83
JB		 760 return 0;
761}
762
763static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
764{
765 int err;
766
767 memset(k, 0, sizeof(*k));
768 k->idx = -1;
e31b8213 769 k->type = -1;
b9454e83
JB		 770
771 if (info->attrs[NL80211_ATTR_KEY])
772 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
773 else
774 err = nl80211_parse_key_old(info, k);
775
776 if (err)
777 return err;
778
779 if (k->def && k->defmgmt)
780 return -EINVAL;
781
dbd2fd65
JB		 782 if (k->defmgmt) {
783 if (k->def_uni || !k->def_multi)
784 return -EINVAL;
785 }
786
b9454e83
JB		 787 if (k->idx != -1) {
788 if (k->defmgmt) {
789 if (k->idx < 4 || k->idx > 5)
790 return -EINVAL;
791 } else if (k->def) {
792 if (k->idx < 0 || k->idx > 3)
793 return -EINVAL;
794 } else {
795 if (k->idx < 0 || k->idx > 5)
796 return -EINVAL;
797 }
798 }
799
800 return 0;
801}
802
fffd0934
JB		 803static struct cfg80211_cached_keys *
804nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 805 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 806{
807 struct key_parse parse;
808 struct nlattr *key;
809 struct cfg80211_cached_keys *result;
810 int rem, err, def = 0;
811
812 result = kzalloc(sizeof(*result), GFP_KERNEL);
813 if (!result)
814 return ERR_PTR(-ENOMEM);
815
816 result->def = -1;
817 result->defmgmt = -1;
818
819 nla_for_each_nested(key, keys, rem) {
820 memset(&parse, 0, sizeof(parse));
821 parse.idx = -1;
822
823 err = nl80211_parse_key_new(key, &parse);
824 if (err)
825 goto error;
826 err = -EINVAL;
827 if (!parse.p.key)
828 goto error;
829 if (parse.idx < 0 || parse.idx > 4)
830 goto error;
831 if (parse.def) {
832 if (def)
833 goto error;
834 def = 1;
835 result->def = parse.idx;
dbd2fd65
JB		 836 if (!parse.def_uni || !parse.def_multi)
837 goto error;
fffd0934
JB		 838 } else if (parse.defmgmt)
839 goto error;
840 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 841 parse.idx, false, NULL);
fffd0934
JB		 842 if (err)
843 goto error;
844 result->params[parse.idx].cipher = parse.p.cipher;
845 result->params[parse.idx].key_len = parse.p.key_len;
846 result->params[parse.idx].key = result->data[parse.idx];
847 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 848
849 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
850 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
851 if (no_ht)
852 *no_ht = true;
853 }
fffd0934
JB		 854 }
855
856 return result;
857 error:
858 kfree(result);
859 return ERR_PTR(err);
860}
861
862static int nl80211_key_allowed(struct wireless_dev *wdev)
863{
864 ASSERT_WDEV_LOCK(wdev);
865
fffd0934
JB		 866 switch (wdev->iftype) {
867 case NL80211_IFTYPE_AP:
868 case NL80211_IFTYPE_AP_VLAN:
074ac8df 869 case NL80211_IFTYPE_P2P_GO:
ff973af7 870 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 871 break;
872 case NL80211_IFTYPE_ADHOC:
fffd0934 873 case NL80211_IFTYPE_STATION:
074ac8df 874 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 875 if (!wdev->current_bss)
fffd0934
JB		 876 return -ENOLINK;
877 break;
878 default:
879 return -EINVAL;
880 }
881
882 return 0;
883}
884
664834de
JM		 885static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
886 struct nlattr *tb)
887{
888 struct ieee80211_channel *chan;
889
890 if (tb == NULL)
891 return NULL;
892 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
893 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
894 return NULL;
895 return chan;
896}
897
7527a782
JB		 898static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
899{
900 struct nlattr *nl_modes = nla_nest_start(msg, attr);
901 int i;
902
903 if (!nl_modes)
904 goto nla_put_failure;
905
906 i = 0;
907 while (ifmodes) {
9360ffd1
DM		 908 if ((ifmodes & 1) && nla_put_flag(msg, i))
909 goto nla_put_failure;
7527a782
JB		 910 ifmodes >>= 1;
911 i++;
912 }
913
914 nla_nest_end(msg, nl_modes);
915 return 0;
916
917nla_put_failure:
918 return -ENOBUFS;
919}
920
921static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 922 struct sk_buff *msg,
923 bool large)
7527a782
JB		 924{
925 struct nlattr *nl_combis;
926 int i, j;
927
928 nl_combis = nla_nest_start(msg,
929 NL80211_ATTR_INTERFACE_COMBINATIONS);
930 if (!nl_combis)
931 goto nla_put_failure;
932
933 for (i = 0; i < wiphy->n_iface_combinations; i++) {
934 const struct ieee80211_iface_combination *c;
935 struct nlattr *nl_combi, *nl_limits;
936
937 c = &wiphy->iface_combinations[i];
938
939 nl_combi = nla_nest_start(msg, i + 1);
940 if (!nl_combi)
941 goto nla_put_failure;
942
943 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
944 if (!nl_limits)
945 goto nla_put_failure;
946
947 for (j = 0; j < c->n_limits; j++) {
948 struct nlattr *nl_limit;
949
950 nl_limit = nla_nest_start(msg, j + 1);
951 if (!nl_limit)
952 goto nla_put_failure;
9360ffd1
DM		 953 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
954 c->limits[j].max))
955 goto nla_put_failure;
7527a782
JB		 956 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
957 c->limits[j].types))
958 goto nla_put_failure;
959 nla_nest_end(msg, nl_limit);
960 }
961
962 nla_nest_end(msg, nl_limits);
963
9360ffd1
DM		 964 if (c->beacon_int_infra_match &&
965 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
966 goto nla_put_failure;
967 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
968 c->num_different_channels) ||
969 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
970 c->max_interfaces))
971 goto nla_put_failure;
cdc89b97
JB		 972 if (large &&
973 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
974 c->radar_detect_widths))
975 goto nla_put_failure;
7527a782
JB		 976
977 nla_nest_end(msg, nl_combi);
978 }
979
980 nla_nest_end(msg, nl_combis);
981
982 return 0;
983nla_put_failure:
984 return -ENOBUFS;
985}
986
3713b4e3 987#ifdef CONFIG_PM
b56cf720
JB		 988static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
989 struct sk_buff *msg)
990{
964dc9e2 991 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 992 struct nlattr *nl_tcp;
993
994 if (!tcp)
995 return 0;
996
997 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
998 if (!nl_tcp)
999 return -ENOBUFS;
1000
1001 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1002 tcp->data_payload_max))
1003 return -ENOBUFS;
1004
1005 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1006 tcp->data_payload_max))
1007 return -ENOBUFS;
1008
1009 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1010 return -ENOBUFS;
1011
1012 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1013 sizeof(*tcp->tok), tcp->tok))
1014 return -ENOBUFS;
1015
1016 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1017 tcp->data_interval_max))
1018 return -ENOBUFS;
1019
1020 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1021 tcp->wake_payload_max))
1022 return -ENOBUFS;
1023
1024 nla_nest_end(msg, nl_tcp);
1025 return 0;
1026}
1027
3713b4e3 1028static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1029 struct cfg80211_registered_device *rdev,
b56cf720 1030 bool large)
55682965 1031{
3713b4e3 1032 struct nlattr *nl_wowlan;
55682965 1033
1b8ec87a 1034 if (!rdev->wiphy.wowlan)
3713b4e3 1035 return 0;
55682965 1036
3713b4e3
JB		 1037 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1038 if (!nl_wowlan)
1039 return -ENOBUFS;
9360ffd1 1040
1b8ec87a 1041 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1042 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1043 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1044 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1045 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1046 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1047 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1048 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1049 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1051 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1052 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1053 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1054 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1055 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1056 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1057 return -ENOBUFS;
9360ffd1 1058
1b8ec87a 1059 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1060 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1061 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1062 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1063 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1064 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1065 };
9360ffd1 1066
3713b4e3
JB		 1067 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1068 sizeof(pat), &pat))
1069 return -ENOBUFS;
1070 }
9360ffd1 1071
1b8ec87a 1072 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1073 return -ENOBUFS;
1074
3713b4e3 1075 nla_nest_end(msg, nl_wowlan);
9360ffd1 1076
3713b4e3
JB		 1077 return 0;
1078}
1079#endif
9360ffd1 1080
be29b99a 1081static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1082 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1083{
1084 struct nl80211_coalesce_rule_support rule;
1085
1b8ec87a 1086 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1087 return 0;
1088
1b8ec87a
ZG		 1089 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1090 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1091 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1092 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1093 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1094 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1095
1096 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1097 return -ENOBUFS;
1098
1099 return 0;
1100}
1101
3713b4e3
JB		 1102static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1103 struct ieee80211_supported_band *sband)
1104{
1105 struct nlattr *nl_rates, *nl_rate;
1106 struct ieee80211_rate *rate;
1107 int i;
87bbbe22 1108
3713b4e3
JB		 1109 /* add HT info */
1110 if (sband->ht_cap.ht_supported &&
1111 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1112 sizeof(sband->ht_cap.mcs),
1113 &sband->ht_cap.mcs) ||
1114 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1115 sband->ht_cap.cap) ||
1116 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1117 sband->ht_cap.ampdu_factor) ||
1118 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1119 sband->ht_cap.ampdu_density)))
1120 return -ENOBUFS;
afe0cbf8 1121
3713b4e3
JB		 1122 /* add VHT info */
1123 if (sband->vht_cap.vht_supported &&
1124 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1125 sizeof(sband->vht_cap.vht_mcs),
1126 &sband->vht_cap.vht_mcs) ||
1127 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1128 sband->vht_cap.cap)))
1129 return -ENOBUFS;
f59ac048 1130
3713b4e3
JB		 1131 /* add bitrates */
1132 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1133 if (!nl_rates)
1134 return -ENOBUFS;
ee688b00 1135
3713b4e3
JB		 1136 for (i = 0; i < sband->n_bitrates; i++) {
1137 nl_rate = nla_nest_start(msg, i);
1138 if (!nl_rate)
1139 return -ENOBUFS;
ee688b00 1140
3713b4e3
JB		 1141 rate = &sband->bitrates[i];
1142 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1143 rate->bitrate))
1144 return -ENOBUFS;
1145 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1146 nla_put_flag(msg,
1147 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1148 return -ENOBUFS;
ee688b00 1149
3713b4e3
JB		 1150 nla_nest_end(msg, nl_rate);
1151 }
d51626df 1152
3713b4e3 1153 nla_nest_end(msg, nl_rates);
bf0c111e 1154
3713b4e3
JB		 1155 return 0;
1156}
ee688b00 1157
3713b4e3
JB		 1158static int
1159nl80211_send_mgmt_stypes(struct sk_buff *msg,
1160 const struct ieee80211_txrx_stypes *mgmt_stypes)
1161{
1162 u16 stypes;
1163 struct nlattr *nl_ftypes, *nl_ifs;
1164 enum nl80211_iftype ift;
1165 int i;
ee688b00 1166
3713b4e3
JB		 1167 if (!mgmt_stypes)
1168 return 0;
5dab3b8a 1169
3713b4e3
JB		 1170 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1171 if (!nl_ifs)
1172 return -ENOBUFS;
e2f367f2 1173
3713b4e3
JB		 1174 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1175 nl_ftypes = nla_nest_start(msg, ift);
1176 if (!nl_ftypes)
1177 return -ENOBUFS;
1178 i = 0;
1179 stypes = mgmt_stypes[ift].tx;
1180 while (stypes) {
1181 if ((stypes & 1) &&
1182 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1183 (i << 4) | IEEE80211_FTYPE_MGMT))
1184 return -ENOBUFS;
1185 stypes >>= 1;
1186 i++;
ee688b00 1187 }
3713b4e3
JB		 1188 nla_nest_end(msg, nl_ftypes);
1189 }
ee688b00 1190
3713b4e3 1191 nla_nest_end(msg, nl_ifs);
ee688b00 1192
3713b4e3
JB		 1193 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1194 if (!nl_ifs)
1195 return -ENOBUFS;
ee688b00 1196
3713b4e3
JB		 1197 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1198 nl_ftypes = nla_nest_start(msg, ift);
1199 if (!nl_ftypes)
1200 return -ENOBUFS;
1201 i = 0;
1202 stypes = mgmt_stypes[ift].rx;
1203 while (stypes) {
1204 if ((stypes & 1) &&
1205 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1206 (i << 4) | IEEE80211_FTYPE_MGMT))
1207 return -ENOBUFS;
1208 stypes >>= 1;
1209 i++;
1210 }
1211 nla_nest_end(msg, nl_ftypes);
1212 }
1213 nla_nest_end(msg, nl_ifs);
ee688b00 1214
3713b4e3
JB		 1215 return 0;
1216}
ee688b00 1217
86e8cf98
JB		 1218struct nl80211_dump_wiphy_state {
1219 s64 filter_wiphy;
1220 long start;
1221 long split_start, band_start, chan_start;
1222 bool split;
1223};
1224
1b8ec87a 1225static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3713b4e3 1226 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1227 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1228{
1229 void *hdr;
1230 struct nlattr *nl_bands, *nl_band;
1231 struct nlattr *nl_freqs, *nl_freq;
1232 struct nlattr *nl_cmds;
1233 enum ieee80211_band band;
1234 struct ieee80211_channel *chan;
1235 int i;
1236 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1237 rdev->wiphy.mgmt_stypes;
fe1abafd 1238 u32 features;
ee688b00 1239
3713b4e3
JB		 1240 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1241 if (!hdr)
1242 return -ENOBUFS;
ee688b00 1243
86e8cf98
JB		 1244 if (WARN_ON(!state))
1245 return -EINVAL;
ee688b00 1246
1b8ec87a 1247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1248 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1249 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1250 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1251 cfg80211_rdev_list_generation))
8fdc621d
JB		 1252 goto nla_put_failure;
1253
86e8cf98 1254 switch (state->split_start) {
3713b4e3
JB		 1255 case 0:
1256 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1257 rdev->wiphy.retry_short) ||
3713b4e3 1258 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1259 rdev->wiphy.retry_long) ||
3713b4e3 1260 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1261 rdev->wiphy.frag_threshold) ||
3713b4e3 1262 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1263 rdev->wiphy.rts_threshold) ||
3713b4e3 1264 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1265 rdev->wiphy.coverage_class) ||
3713b4e3 1266 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1267 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1268 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1269 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1270 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1271 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1272 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1273 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1274 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1275 rdev->wiphy.max_match_sets))
9360ffd1 1276 goto nla_put_failure;
3713b4e3 1277
1b8ec87a 1278 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1279 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1280 goto nla_put_failure;
1b8ec87a 1281 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1282 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1283 goto nla_put_failure;
1b8ec87a 1284 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1285 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1286 goto nla_put_failure;
1b8ec87a 1287 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1288 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1289 goto nla_put_failure;
1b8ec87a 1290 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1291 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1292 goto nla_put_failure;
1b8ec87a 1293 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1294 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1295 goto nla_put_failure;
86e8cf98
JB		 1296 state->split_start++;
1297 if (state->split)
3713b4e3
JB		 1298 break;
1299 case 1:
1300 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1301 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1302 rdev->wiphy.cipher_suites))
3713b4e3 1303 goto nla_put_failure;
4745fc09 1304
3713b4e3 1305 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1306 rdev->wiphy.max_num_pmkids))
3713b4e3 1307 goto nla_put_failure;
b23aa676 1308
1b8ec87a 1309 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1310 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1311 goto nla_put_failure;
b23aa676 1312
3713b4e3 1313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1314 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1315 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1316 rdev->wiphy.available_antennas_rx))
9360ffd1 1317 goto nla_put_failure;
b23aa676 1318
1b8ec87a 1319 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1320 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1321 rdev->wiphy.probe_resp_offload))
3713b4e3 1322 goto nla_put_failure;
8fdc621d 1323
1b8ec87a
ZG		 1324 if ((rdev->wiphy.available_antennas_tx ||
1325 rdev->wiphy.available_antennas_rx) &&
1326 rdev->ops->get_antenna) {
3713b4e3
JB		 1327 u32 tx_ant = 0, rx_ant = 0;
1328 int res;
1b8ec87a 1329 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1330 if (!res) {
1331 if (nla_put_u32(msg,
1332 NL80211_ATTR_WIPHY_ANTENNA_TX,
1333 tx_ant) ||
1334 nla_put_u32(msg,
1335 NL80211_ATTR_WIPHY_ANTENNA_RX,
1336 rx_ant))
1337 goto nla_put_failure;
1338 }
1339 }
a293911d 1340
86e8cf98
JB		 1341 state->split_start++;
1342 if (state->split)
3713b4e3
JB		 1343 break;
1344 case 2:
1345 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1346 rdev->wiphy.interface_modes))
3713b4e3 1347 goto nla_put_failure;
86e8cf98
JB		 1348 state->split_start++;
1349 if (state->split)
3713b4e3
JB		 1350 break;
1351 case 3:
1352 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1353 if (!nl_bands)
1354 goto nla_put_failure;
f7ca38df 1355
86e8cf98
JB		 1356 for (band = state->band_start;
1357 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1358 struct ieee80211_supported_band *sband;
2e161f78 1359
1b8ec87a 1360 sband = rdev->wiphy.bands[band];
2e161f78 1361
3713b4e3
JB		 1362 if (!sband)
1363 continue;
1364
1365 nl_band = nla_nest_start(msg, band);
1366 if (!nl_band)
2e161f78 1367 goto nla_put_failure;
3713b4e3 1368
86e8cf98 1369 switch (state->chan_start) {
3713b4e3
JB		 1370 case 0:
1371 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1372 goto nla_put_failure;
86e8cf98
JB		 1373 state->chan_start++;
1374 if (state->split)
3713b4e3
JB		 1375 break;
1376 default:
1377 /* add frequencies */
1378 nl_freqs = nla_nest_start(
1379 msg, NL80211_BAND_ATTR_FREQS);
1380 if (!nl_freqs)
1381 goto nla_put_failure;
1382
86e8cf98 1383 for (i = state->chan_start - 1;
3713b4e3
JB		 1384 i < sband->n_channels;
1385 i++) {
1386 nl_freq = nla_nest_start(msg, i);
1387 if (!nl_freq)
1388 goto nla_put_failure;
1389
1390 chan = &sband->channels[i];
1391
86e8cf98
JB		 1392 if (nl80211_msg_put_channel(
1393 msg, chan,
1394 state->split))
3713b4e3
JB		 1395 goto nla_put_failure;
1396
1397 nla_nest_end(msg, nl_freq);
86e8cf98 1398 if (state->split)
3713b4e3
JB		 1399 break;
1400 }
1401 if (i < sband->n_channels)
86e8cf98 1402 state->chan_start = i + 2;
3713b4e3 1403 else
86e8cf98 1404 state->chan_start = 0;
3713b4e3
JB		 1405 nla_nest_end(msg, nl_freqs);
1406 }
1407
1408 nla_nest_end(msg, nl_band);
1409
86e8cf98 1410 if (state->split) {
3713b4e3 1411 /* start again here */
86e8cf98 1412 if (state->chan_start)
3713b4e3
JB		 1413 band--;
1414 break;
2e161f78 1415 }
2e161f78 1416 }
3713b4e3 1417 nla_nest_end(msg, nl_bands);
2e161f78 1418
3713b4e3 1419 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1420 state->band_start = band + 1;
3713b4e3 1421 else
86e8cf98 1422 state->band_start = 0;
74b70a4e 1423
3713b4e3 1424 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1425 if (state->band_start == 0 && state->chan_start == 0)
1426 state->split_start++;
1427 if (state->split)
3713b4e3
JB		 1428 break;
1429 case 4:
1430 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1431 if (!nl_cmds)
2e161f78
JB		 1432 goto nla_put_failure;
1433
3713b4e3
JB		 1434 i = 0;
1435#define CMD(op, n) \
1436 do { \
1b8ec87a 1437 if (rdev->ops->op) { \
3713b4e3
JB		 1438 i++; \
1439 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1440 goto nla_put_failure; \
1441 } \
1442 } while (0)
1443
1444 CMD(add_virtual_intf, NEW_INTERFACE);
1445 CMD(change_virtual_intf, SET_INTERFACE);
1446 CMD(add_key, NEW_KEY);
1447 CMD(start_ap, START_AP);
1448 CMD(add_station, NEW_STATION);
1449 CMD(add_mpath, NEW_MPATH);
1450 CMD(update_mesh_config, SET_MESH_CONFIG);
1451 CMD(change_bss, SET_BSS);
1452 CMD(auth, AUTHENTICATE);
1453 CMD(assoc, ASSOCIATE);
1454 CMD(deauth, DEAUTHENTICATE);
1455 CMD(disassoc, DISASSOCIATE);
1456 CMD(join_ibss, JOIN_IBSS);
1457 CMD(join_mesh, JOIN_MESH);
1458 CMD(set_pmksa, SET_PMKSA);
1459 CMD(del_pmksa, DEL_PMKSA);
1460 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1461 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1462 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1463 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1464 CMD(mgmt_tx, FRAME);
1465 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1466 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1467 i++;
1468 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1469 goto nla_put_failure;
2e161f78 1470 }
1b8ec87a
ZG		 1471 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1472 rdev->ops->join_mesh) {
3713b4e3
JB		 1473 i++;
1474 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1475 goto nla_put_failure;
1476 }
1477 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1478 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1479 CMD(tdls_mgmt, TDLS_MGMT);
1480 CMD(tdls_oper, TDLS_OPER);
1481 }
1b8ec87a 1482 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1483 CMD(sched_scan_start, START_SCHED_SCAN);
1484 CMD(probe_client, PROBE_CLIENT);
1485 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1486 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1487 i++;
1488 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1489 goto nla_put_failure;
1490 }
1491 CMD(start_p2p_device, START_P2P_DEVICE);
1492 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1493 if (state->split) {
5de17984
AS		 1494 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1495 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1496 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1497 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1498 }
fa9ffc74 1499 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1500
3713b4e3
JB		 1501#ifdef CONFIG_NL80211_TESTMODE
1502 CMD(testmode_cmd, TESTMODE);
1503#endif
ff1b6e69 1504
3713b4e3 1505#undef CMD
ff1b6e69 1506
1b8ec87a 1507 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1508 i++;
1509 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1510 goto nla_put_failure;
ff1b6e69
JB		 1511 }
1512
1b8ec87a 1513 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1514 i++;
1515 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1516 goto nla_put_failure;
1517 }
1518
1519 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1520 state->split_start++;
1521 if (state->split)
3713b4e3
JB		 1522 break;
1523 case 5:
1b8ec87a
ZG		 1524 if (rdev->ops->remain_on_channel &&
1525 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1526 nla_put_u32(msg,
1527 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1528 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1529 goto nla_put_failure;
1530
1b8ec87a 1531 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1532 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1533 goto nla_put_failure;
1534
1535 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1536 goto nla_put_failure;
86e8cf98
JB		 1537 state->split_start++;
1538 if (state->split)
3713b4e3
JB		 1539 break;
1540 case 6:
1541#ifdef CONFIG_PM
1b8ec87a 1542 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1543 goto nla_put_failure;
86e8cf98
JB		 1544 state->split_start++;
1545 if (state->split)
3713b4e3
JB		 1546 break;
1547#else
86e8cf98 1548 state->split_start++;
dfb89c56 1549#endif
3713b4e3
JB		 1550 case 7:
1551 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1552 rdev->wiphy.software_iftypes))
3713b4e3 1553 goto nla_put_failure;
ff1b6e69 1554
1b8ec87a 1555 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1556 state->split))
3713b4e3 1557 goto nla_put_failure;
7527a782 1558
86e8cf98
JB		 1559 state->split_start++;
1560 if (state->split)
3713b4e3
JB		 1561 break;
1562 case 8:
1b8ec87a 1563 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1564 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1565 rdev->wiphy.ap_sme_capa))
3713b4e3 1566 goto nla_put_failure;
7527a782 1567
1b8ec87a 1568 features = rdev->wiphy.features;
fe1abafd
JB		 1569 /*
1570 * We can only add the per-channel limit information if the
1571 * dump is split, otherwise it makes it too big. Therefore
1572 * only advertise it in that case.
1573 */
86e8cf98 1574 if (state->split)
fe1abafd
JB		 1575 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1576 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1577 goto nla_put_failure;
562a7480 1578
1b8ec87a 1579 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1580 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1581 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1582 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1583 goto nla_put_failure;
1f074bd8 1584
1b8ec87a
ZG		 1585 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1586 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1587 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1588 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1589 goto nla_put_failure;
7e7c8926 1590
3713b4e3
JB		 1591 /*
1592 * Any information below this point is only available to
1593 * applications that can deal with it being split. This
1594 * helps ensure that newly added capabilities don't break
1595 * older tools by overrunning their buffers.
1596 *
1597 * We still increment split_start so that in the split
1598 * case we'll continue with more data in the next round,
1599 * but break unconditionally so unsplit data stops here.
1600 */
86e8cf98 1601 state->split_start++;
3713b4e3
JB		 1602 break;
1603 case 9:
1b8ec87a 1604 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1605 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1606 rdev->wiphy.extended_capabilities_len,
1607 rdev->wiphy.extended_capabilities) ||
fe1abafd 1608 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1609 rdev->wiphy.extended_capabilities_len,
1610 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1611 goto nla_put_failure;
a50df0c4 1612
1b8ec87a 1613 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1614 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1615 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1616 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1617 goto nla_put_failure;
1618
be29b99a
AK		 1619 state->split_start++;
1620 break;
1621 case 10:
1b8ec87a 1622 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1623 goto nla_put_failure;
1624
1b8ec87a 1625 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1626 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1627 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1628 goto nla_put_failure;
b43504cf 1629
1b8ec87a 1630 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1631 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1632 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1633 goto nla_put_failure;
1634
ad7e718c
JB		 1635 state->split_start++;
1636 break;
1637 case 11:
1b8ec87a 1638 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1639 const struct nl80211_vendor_cmd_info *info;
1640 struct nlattr *nested;
1641
1642 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1643 if (!nested)
1644 goto nla_put_failure;
1645
1b8ec87a
ZG		 1646 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1647 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1648 if (nla_put(msg, i + 1, sizeof(*info), info))
1649 goto nla_put_failure;
1650 }
1651 nla_nest_end(msg, nested);
1652 }
1653
1b8ec87a 1654 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1655 const struct nl80211_vendor_cmd_info *info;
1656 struct nlattr *nested;
ad7e718c 1657
567ffc35
JB		 1658 nested = nla_nest_start(msg,
1659 NL80211_ATTR_VENDOR_EVENTS);
1660 if (!nested)
ad7e718c 1661 goto nla_put_failure;
567ffc35 1662
1b8ec87a
ZG		 1663 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1664 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1665 if (nla_put(msg, i + 1, sizeof(*info), info))
1666 goto nla_put_failure;
1667 }
1668 nla_nest_end(msg, nested);
1669 }
01e0daa4 1670
3713b4e3 1671 /* done */
86e8cf98 1672 state->split_start = 0;
3713b4e3
JB		 1673 break;
1674 }
55682965
JB		 1675 return genlmsg_end(msg, hdr);
1676
1677 nla_put_failure:
bc3ed28c
TG		 1678 genlmsg_cancel(msg, hdr);
1679 return -EMSGSIZE;
55682965
JB		 1680}
1681
86e8cf98
JB		 1682static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1683 struct netlink_callback *cb,
1684 struct nl80211_dump_wiphy_state *state)
1685{
1686 struct nlattr **tb = nl80211_fam.attrbuf;
1687 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1688 tb, nl80211_fam.maxattr, nl80211_policy);
1689 /* ignore parse errors for backward compatibility */
1690 if (ret)
1691 return 0;
1692
1693 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1694 if (tb[NL80211_ATTR_WIPHY])
1695 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1696 if (tb[NL80211_ATTR_WDEV])
1697 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1698 if (tb[NL80211_ATTR_IFINDEX]) {
1699 struct net_device *netdev;
1700 struct cfg80211_registered_device *rdev;
1701 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1702
7f2b8562 1703 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1704 if (!netdev)
1705 return -ENODEV;
1706 if (netdev->ieee80211_ptr) {
f26cbf40 1707 rdev = wiphy_to_rdev(
86e8cf98
JB		 1708 netdev->ieee80211_ptr->wiphy);
1709 state->filter_wiphy = rdev->wiphy_idx;
1710 }
86e8cf98
JB		 1711 }
1712
1713 return 0;
1714}
1715
55682965
JB		 1716static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1717{
645e77de 1718 int idx = 0, ret;
86e8cf98 1719 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1720 struct cfg80211_registered_device *rdev;
3a5a423b 1721
5fe231e8 1722 rtnl_lock();
86e8cf98
JB		 1723 if (!state) {
1724 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1725 if (!state) {
1726 rtnl_unlock();
86e8cf98 1727 return -ENOMEM;
3713b4e3 1728 }
86e8cf98
JB		 1729 state->filter_wiphy = -1;
1730 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1731 if (ret) {
1732 kfree(state);
1733 rtnl_unlock();
1734 return ret;
3713b4e3 1735 }
86e8cf98 1736 cb->args[0] = (long)state;
3713b4e3
JB		 1737 }
1738
1b8ec87a
ZG		 1739 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1740 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1741 continue;
86e8cf98 1742 if (++idx <= state->start)
55682965 1743 continue;
86e8cf98 1744 if (state->filter_wiphy != -1 &&
1b8ec87a 1745 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1746 continue;
1747 /* attempt to fit multiple wiphy data chunks into the skb */
1748 do {
1b8ec87a 1749 ret = nl80211_send_wiphy(rdev, skb,
3713b4e3
JB		 1750 NETLINK_CB(cb->skb).portid,
1751 cb->nlh->nlmsg_seq,
86e8cf98 1752 NLM_F_MULTI, state);
3713b4e3
JB		 1753 if (ret < 0) {
1754 /*
1755 * If sending the wiphy data didn't fit (ENOBUFS
1756 * or EMSGSIZE returned), this SKB is still
1757 * empty (so it's not too big because another
1758 * wiphy dataset is already in the skb) and
1759 * we've not tried to adjust the dump allocation
1760 * yet ... then adjust the alloc size to be
1761 * bigger, and return 1 but with the empty skb.
1762 * This results in an empty message being RX'ed
1763 * in userspace, but that is ignored.
1764 *
1765 * We can then retry with the larger buffer.
1766 */
1767 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1768 !skb->len && !state->split &&
3713b4e3
JB		 1769 cb->min_dump_alloc < 4096) {
1770 cb->min_dump_alloc = 4096;
f12cb289 1771 state->split_start = 0;
d98cae64 1772 rtnl_unlock();
3713b4e3
JB		 1773 return 1;
1774 }
1775 idx--;
1776 break;
645e77de 1777 }
86e8cf98 1778 } while (state->split_start > 0);
3713b4e3 1779 break;
55682965 1780 }
5fe231e8 1781 rtnl_unlock();
55682965 1782
86e8cf98 1783 state->start = idx;
55682965
JB		 1784
1785 return skb->len;
1786}
1787
86e8cf98
JB		 1788static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1789{
1790 kfree((void *)cb->args[0]);
1791 return 0;
1792}
1793
55682965
JB		 1794static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1795{
1796 struct sk_buff *msg;
1b8ec87a 1797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1798 struct nl80211_dump_wiphy_state state = {};
55682965 1799
645e77de 1800 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1801 if (!msg)
4c476991 1802 return -ENOMEM;
55682965 1803
1b8ec87a 1804 if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1805 &state) < 0) {
4c476991
JB		 1806 nlmsg_free(msg);
1807 return -ENOBUFS;
1808 }
55682965 1809
134e6375 1810 return genlmsg_reply(msg, info);
55682965
JB		 1811}
1812
31888487
JM		 1813static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1814 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1815 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1816 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1817 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1818 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1819};
1820
1821static int parse_txq_params(struct nlattr *tb[],
1822 struct ieee80211_txq_params *txq_params)
1823{
a3304b0a 1824 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1825 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1826 !tb[NL80211_TXQ_ATTR_AIFS])
1827 return -EINVAL;
1828
a3304b0a 1829 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1830 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1831 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1832 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1833 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1834
a3304b0a
JB		 1835 if (txq_params->ac >= NL80211_NUM_ACS)
1836 return -EINVAL;
1837
31888487
JM		 1838 return 0;
1839}
1840
f444de05
JB		 1841static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1842{
1843 /*
cc1d2806
JB		 1844 * You can only set the channel explicitly for WDS interfaces,
1845 * all others have their channel managed via their respective
1846 * "establish a connection" command (connect, join, ...)
1847 *
1848 * For AP/GO and mesh mode, the channel can be set with the
1849 * channel userspace API, but is only stored and passed to the
1850 * low-level driver when the AP starts or the mesh is joined.
1851 * This is for backward compatibility, userspace can also give
1852 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1853 *
1854 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1855 * whatever else is going on, so they have their own special
1856 * operation to set the monitor channel if possible.
f444de05
JB		 1857 */
1858 return !wdev ||
1859 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1860 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1861 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1862 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1863}
1864
683b6d3b
JB		 1865static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1866 struct genl_info *info,
1867 struct cfg80211_chan_def *chandef)
1868{
dbeca2ea 1869 u32 control_freq;
683b6d3b
JB		 1870
1871 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1872 return -EINVAL;
1873
1874 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1875
1876 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1877 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1878 chandef->center_freq1 = control_freq;
1879 chandef->center_freq2 = 0;
683b6d3b
JB		 1880
1881 /* Primary channel not allowed */
1882 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1883 return -EINVAL;
1884
3d9d1d66
JB		 1885 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1886 enum nl80211_channel_type chantype;
1887
1888 chantype = nla_get_u32(
1889 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1890
1891 switch (chantype) {
1892 case NL80211_CHAN_NO_HT:
1893 case NL80211_CHAN_HT20:
1894 case NL80211_CHAN_HT40PLUS:
1895 case NL80211_CHAN_HT40MINUS:
1896 cfg80211_chandef_create(chandef, chandef->chan,
1897 chantype);
1898 break;
1899 default:
1900 return -EINVAL;
1901 }
1902 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1903 chandef->width =
1904 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1905 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1906 chandef->center_freq1 =
1907 nla_get_u32(
1908 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1909 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1910 chandef->center_freq2 =
1911 nla_get_u32(
1912 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1913 }
1914
9f5e8f6e 1915 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1916 return -EINVAL;
1917
9f5e8f6e
JB		 1918 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1919 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1920 return -EINVAL;
1921
2f301ab2
SW		 1922 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1923 chandef->width == NL80211_CHAN_WIDTH_10) &&
1924 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1925 return -EINVAL;
1926
683b6d3b
JB		 1927 return 0;
1928}
1929
f444de05 1930static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1931 struct net_device *dev,
f444de05
JB		 1932 struct genl_info *info)
1933{
683b6d3b 1934 struct cfg80211_chan_def chandef;
f444de05 1935 int result;
e8c9bd5b 1936 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1937 struct wireless_dev *wdev = NULL;
e8c9bd5b 1938
e16821bc
JM		 1939 if (dev)
1940 wdev = dev->ieee80211_ptr;
f444de05
JB		 1941 if (!nl80211_can_set_dev_channel(wdev))
1942 return -EOPNOTSUPP;
e16821bc
JM		 1943 if (wdev)
1944 iftype = wdev->iftype;
f444de05 1945
683b6d3b
JB		 1946 result = nl80211_parse_chandef(rdev, info, &chandef);
1947 if (result)
1948 return result;
f444de05 1949
e8c9bd5b 1950 switch (iftype) {
aa430da4
JB		 1951 case NL80211_IFTYPE_AP:
1952 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1953 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1954 result = -EINVAL;
1955 break;
1956 }
e16821bc
JM		 1957 if (wdev->beacon_interval) {
1958 if (!dev || !rdev->ops->set_ap_chanwidth ||
1959 !(rdev->wiphy.features &
1960 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1961 result = -EBUSY;
1962 break;
1963 }
1964
1965 /* Only allow dynamic channel width changes */
1966 if (chandef.chan != wdev->preset_chandef.chan) {
1967 result = -EBUSY;
1968 break;
1969 }
1970 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1971 if (result)
1972 break;
1973 }
683b6d3b 1974 wdev->preset_chandef = chandef;
aa430da4
JB		 1975 result = 0;
1976 break;
cc1d2806 1977 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1978 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1979 break;
e8c9bd5b 1980 case NL80211_IFTYPE_MONITOR:
683b6d3b 1981 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1982 break;
aa430da4 1983 default:
e8c9bd5b 1984 result = -EINVAL;
f444de05 1985 }
f444de05
JB		 1986
1987 return result;
1988}
1989
1990static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1991{
4c476991
JB		 1992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1993 struct net_device *netdev = info->user_ptr[1];
f444de05 1994
e16821bc 1995 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 1996}
1997
e8347eba
BJ		 1998static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1999{
43b19952
JB		 2000 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2001 struct net_device *dev = info->user_ptr[1];
2002 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2003 const u8 *bssid;
e8347eba
BJ		 2004
2005 if (!info->attrs[NL80211_ATTR_MAC])
2006 return -EINVAL;
2007
43b19952
JB		 2008 if (netif_running(dev))
2009 return -EBUSY;
e8347eba 2010
43b19952
JB		 2011 if (!rdev->ops->set_wds_peer)
2012 return -EOPNOTSUPP;
e8347eba 2013
43b19952
JB		 2014 if (wdev->iftype != NL80211_IFTYPE_WDS)
2015 return -EOPNOTSUPP;
e8347eba
BJ		 2016
2017 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2018 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2019}
2020
2021
55682965
JB		 2022static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2023{
2024 struct cfg80211_registered_device *rdev;
f444de05
JB		 2025 struct net_device *netdev = NULL;
2026 struct wireless_dev *wdev;
a1e567c8 2027 int result = 0, rem_txq_params = 0;
31888487 2028 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2029 u32 changed;
2030 u8 retry_short = 0, retry_long = 0;
2031 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2032 u8 coverage_class = 0;
55682965 2033
5fe231e8
JB		 2034 ASSERT_RTNL();
2035
f444de05
JB		 2036 /*
2037 * Try to find the wiphy and netdev. Normally this
2038 * function shouldn't need the netdev, but this is
2039 * done for backward compatibility -- previously
2040 * setting the channel was done per wiphy, but now
2041 * it is per netdev. Previous userland like hostapd
2042 * also passed a netdev to set_wiphy, so that it is
2043 * possible to let that go to the right netdev!
2044 */
4bbf4d56 2045
f444de05
JB		 2046 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2047 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2048
7f2b8562 2049 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2050 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2051 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2052 else
f444de05 2053 netdev = NULL;
4bbf4d56
JB		 2054 }
2055
f444de05 2056 if (!netdev) {
878d9ec7
JB		 2057 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2058 info->attrs);
5fe231e8 2059 if (IS_ERR(rdev))
4c476991 2060 return PTR_ERR(rdev);
f444de05
JB		 2061 wdev = NULL;
2062 netdev = NULL;
2063 result = 0;
71fe96bf 2064 } else
f444de05 2065 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2066
2067 /*
2068 * end workaround code, by now the rdev is available
2069 * and locked, and wdev may or may not be NULL.
2070 */
4bbf4d56
JB		 2071
2072 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2073 result = cfg80211_dev_rename(
2074 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2075
4bbf4d56 2076 if (result)
7f2b8562 2077 return result;
31888487
JM		 2078
2079 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2080 struct ieee80211_txq_params txq_params;
2081 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2082
7f2b8562
YX		 2083 if (!rdev->ops->set_txq_params)
2084 return -EOPNOTSUPP;
31888487 2085
7f2b8562
YX		 2086 if (!netdev)
2087 return -EINVAL;
f70f01c2 2088
133a3ff2 2089 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2090 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2091 return -EINVAL;
133a3ff2 2092
7f2b8562
YX		 2093 if (!netif_running(netdev))
2094 return -ENETDOWN;
2b5f8b0b 2095
31888487
JM		 2096 nla_for_each_nested(nl_txq_params,
2097 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2098 rem_txq_params) {
ae811e21
JB		 2099 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2100 nla_data(nl_txq_params),
2101 nla_len(nl_txq_params),
2102 txq_params_policy);
2103 if (result)
2104 return result;
31888487
JM		 2105 result = parse_txq_params(tb, &txq_params);
2106 if (result)
7f2b8562 2107 return result;
31888487 2108
e35e4d28
HG		 2109 result = rdev_set_txq_params(rdev, netdev,
2110 &txq_params);
31888487 2111 if (result)
7f2b8562 2112 return result;
31888487
JM		 2113 }
2114 }
55682965 2115
72bdcf34 2116 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2117 result = __nl80211_set_channel(
2118 rdev,
2119 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2120 info);
72bdcf34 2121 if (result)
7f2b8562 2122 return result;
72bdcf34
JM		 2123 }
2124
98d2ff8b 2125 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2126 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2127 enum nl80211_tx_power_setting type;
2128 int idx, mbm = 0;
2129
c8442118
JB		 2130 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2131 txp_wdev = NULL;
2132
7f2b8562
YX		 2133 if (!rdev->ops->set_tx_power)
2134 return -EOPNOTSUPP;
98d2ff8b
JO		 2135
2136 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2137 type = nla_get_u32(info->attrs[idx]);
2138
2139 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2140 (type != NL80211_TX_POWER_AUTOMATIC))
2141 return -EINVAL;
98d2ff8b
JO		 2142
2143 if (type != NL80211_TX_POWER_AUTOMATIC) {
2144 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2145 mbm = nla_get_u32(info->attrs[idx]);
2146 }
2147
c8442118 2148 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2149 if (result)
7f2b8562 2150 return result;
98d2ff8b
JO		 2151 }
2152
afe0cbf8
BR		 2153 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2154 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2155 u32 tx_ant, rx_ant;
7f531e03
BR		 2156 if ((!rdev->wiphy.available_antennas_tx &&
2157 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2158 !rdev->ops->set_antenna)
2159 return -EOPNOTSUPP;
afe0cbf8
BR		 2160
2161 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2162 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2163
a7ffac95 2164 /* reject antenna configurations which don't match the
7f531e03
BR		 2165 * available antenna masks, except for the "all" mask */
2166 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2167 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2168 return -EINVAL;
a7ffac95 2169
7f531e03
BR		 2170 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2171 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2172
e35e4d28 2173 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2174 if (result)
7f2b8562 2175 return result;
afe0cbf8
BR		 2176 }
2177
b9a5f8ca
JM		 2178 changed = 0;
2179
2180 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2181 retry_short = nla_get_u8(
2182 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2183 if (retry_short == 0)
2184 return -EINVAL;
2185
b9a5f8ca
JM		 2186 changed |= WIPHY_PARAM_RETRY_SHORT;
2187 }
2188
2189 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2190 retry_long = nla_get_u8(
2191 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2192 if (retry_long == 0)
2193 return -EINVAL;
2194
b9a5f8ca
JM		 2195 changed |= WIPHY_PARAM_RETRY_LONG;
2196 }
2197
2198 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2199 frag_threshold = nla_get_u32(
2200 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2201 if (frag_threshold < 256)
2202 return -EINVAL;
2203
b9a5f8ca
JM		 2204 if (frag_threshold != (u32) -1) {
2205 /*
2206 * Fragments (apart from the last one) are required to
2207 * have even length. Make the fragmentation code
2208 * simpler by stripping LSB should someone try to use
2209 * odd threshold value.
2210 */
2211 frag_threshold &= ~0x1;
2212 }
2213 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2214 }
2215
2216 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2217 rts_threshold = nla_get_u32(
2218 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2219 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2220 }
2221
81077e82
LT		 2222 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2223 coverage_class = nla_get_u8(
2224 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2225 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2226 }
2227
b9a5f8ca
JM		 2228 if (changed) {
2229 u8 old_retry_short, old_retry_long;
2230 u32 old_frag_threshold, old_rts_threshold;
81077e82 2231 u8 old_coverage_class;
b9a5f8ca 2232
7f2b8562
YX		 2233 if (!rdev->ops->set_wiphy_params)
2234 return -EOPNOTSUPP;
b9a5f8ca
JM		 2235
2236 old_retry_short = rdev->wiphy.retry_short;
2237 old_retry_long = rdev->wiphy.retry_long;
2238 old_frag_threshold = rdev->wiphy.frag_threshold;
2239 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2240 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2241
2242 if (changed & WIPHY_PARAM_RETRY_SHORT)
2243 rdev->wiphy.retry_short = retry_short;
2244 if (changed & WIPHY_PARAM_RETRY_LONG)
2245 rdev->wiphy.retry_long = retry_long;
2246 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2247 rdev->wiphy.frag_threshold = frag_threshold;
2248 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2249 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2250 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2251 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2252
e35e4d28 2253 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2254 if (result) {
2255 rdev->wiphy.retry_short = old_retry_short;
2256 rdev->wiphy.retry_long = old_retry_long;
2257 rdev->wiphy.frag_threshold = old_frag_threshold;
2258 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2259 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2260 }
2261 }
7f2b8562 2262 return 0;
55682965
JB		 2263}
2264
71bbc994
JB		 2265static inline u64 wdev_id(struct wireless_dev *wdev)
2266{
2267 return (u64)wdev->identifier |
f26cbf40 2268 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2269}
55682965 2270
683b6d3b 2271static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2272 const struct cfg80211_chan_def *chandef)
683b6d3b 2273{
9f5e8f6e 2274 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2275
683b6d3b
JB		 2276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2277 chandef->chan->center_freq))
2278 return -ENOBUFS;
3d9d1d66
JB		 2279 switch (chandef->width) {
2280 case NL80211_CHAN_WIDTH_20_NOHT:
2281 case NL80211_CHAN_WIDTH_20:
2282 case NL80211_CHAN_WIDTH_40:
2283 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2284 cfg80211_get_chandef_type(chandef)))
2285 return -ENOBUFS;
2286 break;
2287 default:
2288 break;
2289 }
2290 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2291 return -ENOBUFS;
2292 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2293 return -ENOBUFS;
2294 if (chandef->center_freq2 &&
2295 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2296 return -ENOBUFS;
2297 return 0;
2298}
2299
15e47304 2300static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2301 struct cfg80211_registered_device *rdev,
72fb2abc 2302 struct wireless_dev *wdev)
55682965 2303{
72fb2abc 2304 struct net_device *dev = wdev->netdev;
55682965
JB		 2305 void *hdr;
2306
15e47304 2307 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2308 if (!hdr)
2309 return -1;
2310
72fb2abc
JB		 2311 if (dev &&
2312 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2313 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2314 goto nla_put_failure;
2315
2316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2317 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2318 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2319 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2320 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2321 rdev->devlist_generation ^
2322 (cfg80211_rdev_list_generation << 2)))
2323 goto nla_put_failure;
f5ea9120 2324
5b7ccaf3 2325 if (rdev->ops->get_channel) {
683b6d3b
JB		 2326 int ret;
2327 struct cfg80211_chan_def chandef;
2328
2329 ret = rdev_get_channel(rdev, wdev, &chandef);
2330 if (ret == 0) {
2331 if (nl80211_send_chandef(msg, &chandef))
2332 goto nla_put_failure;
2333 }
d91df0e3
PF		 2334 }
2335
b84e7a05
AQ		 2336 if (wdev->ssid_len) {
2337 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2338 goto nla_put_failure;
2339 }
2340
55682965
JB		 2341 return genlmsg_end(msg, hdr);
2342
2343 nla_put_failure:
bc3ed28c
TG		 2344 genlmsg_cancel(msg, hdr);
2345 return -EMSGSIZE;
55682965
JB		 2346}
2347
2348static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2349{
2350 int wp_idx = 0;
2351 int if_idx = 0;
2352 int wp_start = cb->args[0];
2353 int if_start = cb->args[1];
f5ea9120 2354 struct cfg80211_registered_device *rdev;
55682965
JB		 2355 struct wireless_dev *wdev;
2356
5fe231e8 2357 rtnl_lock();
f5ea9120
JB		 2358 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2359 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2360 continue;
bba95fef
JB		 2361 if (wp_idx < wp_start) {
2362 wp_idx++;
55682965 2363 continue;
bba95fef 2364 }
55682965
JB		 2365 if_idx = 0;
2366
89a54e48 2367 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2368 if (if_idx < if_start) {
2369 if_idx++;
55682965 2370 continue;
bba95fef 2371 }
15e47304 2372 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2373 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2374 rdev, wdev) < 0) {
bba95fef
JB		 2375 goto out;
2376 }
2377 if_idx++;
55682965 2378 }
bba95fef
JB		 2379
2380 wp_idx++;
55682965 2381 }
bba95fef 2382 out:
5fe231e8 2383 rtnl_unlock();
55682965
JB		 2384
2385 cb->args[0] = wp_idx;
2386 cb->args[1] = if_idx;
2387
2388 return skb->len;
2389}
2390
2391static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2392{
2393 struct sk_buff *msg;
1b8ec87a 2394 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2395 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2396
fd2120ca 2397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2398 if (!msg)
4c476991 2399 return -ENOMEM;
55682965 2400
15e47304 2401 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2402 rdev, wdev) < 0) {
4c476991
JB		 2403 nlmsg_free(msg);
2404 return -ENOBUFS;
2405 }
55682965 2406
134e6375 2407 return genlmsg_reply(msg, info);
55682965
JB		 2408}
2409
66f7ac50
MW		 2410static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2411 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2412 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2413 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2414 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2415 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2416 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2417};
2418
2419static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2420{
2421 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2422 int flag;
2423
2424 *mntrflags = 0;
2425
2426 if (!nla)
2427 return -EINVAL;
2428
2429 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2430 nla, mntr_flags_policy))
2431 return -EINVAL;
2432
2433 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2434 if (flags[flag])
2435 *mntrflags |= (1<<flag);
2436
2437 return 0;
2438}
2439
9bc383de 2440static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2441 struct net_device *netdev, u8 use_4addr,
2442 enum nl80211_iftype iftype)
9bc383de 2443{
ad4bb6f8 2444 if (!use_4addr) {
f350a0a8 2445 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2446 return -EBUSY;
9bc383de 2447 return 0;
ad4bb6f8 2448 }
9bc383de
JB		 2449
2450 switch (iftype) {
2451 case NL80211_IFTYPE_AP_VLAN:
2452 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2453 return 0;
2454 break;
2455 case NL80211_IFTYPE_STATION:
2456 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2457 return 0;
2458 break;
2459 default:
2460 break;
2461 }
2462
2463 return -EOPNOTSUPP;
2464}
2465
55682965
JB		 2466static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2467{
4c476991 2468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2469 struct vif_params params;
e36d56b6 2470 int err;
04a773ad 2471 enum nl80211_iftype otype, ntype;
4c476991 2472 struct net_device *dev = info->user_ptr[1];
92ffe055 2473 u32 _flags, *flags = NULL;
ac7f9cfa 2474 bool change = false;
55682965 2475
2ec600d6
LCC		 2476 memset(&params, 0, sizeof(params));
2477
04a773ad 2478 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2479
723b038d 2480 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2481 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2482 if (otype != ntype)
ac7f9cfa 2483 change = true;
4c476991
JB		 2484 if (ntype > NL80211_IFTYPE_MAX)
2485 return -EINVAL;
723b038d
JB		 2486 }
2487
92ffe055 2488 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2489 struct wireless_dev *wdev = dev->ieee80211_ptr;
2490
4c476991
JB		 2491 if (ntype != NL80211_IFTYPE_MESH_POINT)
2492 return -EINVAL;
29cbe68c
JB		 2493 if (netif_running(dev))
2494 return -EBUSY;
2495
2496 wdev_lock(wdev);
2497 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2498 IEEE80211_MAX_MESH_ID_LEN);
2499 wdev->mesh_id_up_len =
2500 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2501 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2502 wdev->mesh_id_up_len);
2503 wdev_unlock(wdev);
2ec600d6
LCC		 2504 }
2505
8b787643
FF		 2506 if (info->attrs[NL80211_ATTR_4ADDR]) {
2507 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2508 change = true;
ad4bb6f8 2509 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2510 if (err)
4c476991 2511 return err;
8b787643
FF		 2512 } else {
2513 params.use_4addr = -1;
2514 }
2515
92ffe055 2516 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2517 if (ntype != NL80211_IFTYPE_MONITOR)
2518 return -EINVAL;
92ffe055
JB		 2519 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2520 &_flags);
ac7f9cfa 2521 if (err)
4c476991 2522 return err;
ac7f9cfa
JB		 2523
2524 flags = &_flags;
2525 change = true;
92ffe055 2526 }
3b85875a 2527
18003297 2528 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2529 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2530 return -EOPNOTSUPP;
2531
ac7f9cfa 2532 if (change)
3d54d255 2533 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2534 else
2535 err = 0;
60719ffd 2536
9bc383de
JB		 2537 if (!err && params.use_4addr != -1)
2538 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2539
55682965
JB		 2540 return err;
2541}
2542
2543static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2544{
4c476991 2545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2546 struct vif_params params;
84efbb84 2547 struct wireless_dev *wdev;
1c90f9d4 2548 struct sk_buff *msg;
55682965
JB		 2549 int err;
2550 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2551 u32 flags;
55682965 2552
78f22b6a
JB		 2553 /* to avoid failing a new interface creation due to pending removal */
2554 cfg80211_destroy_ifaces(rdev);
2555
2ec600d6
LCC		 2556 memset(&params, 0, sizeof(params));
2557
55682965
JB		 2558 if (!info->attrs[NL80211_ATTR_IFNAME])
2559 return -EINVAL;
2560
2561 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2562 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2563 if (type > NL80211_IFTYPE_MAX)
2564 return -EINVAL;
2565 }
2566
79c97e97 2567 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2568 !(rdev->wiphy.interface_modes & (1 << type)))
2569 return -EOPNOTSUPP;
55682965 2570
1c18f145
AS		 2571 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2572 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2573 ETH_ALEN);
2574 if (!is_valid_ether_addr(params.macaddr))
2575 return -EADDRNOTAVAIL;
2576 }
2577
9bc383de 2578 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2579 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2580 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2581 if (err)
4c476991 2582 return err;
9bc383de 2583 }
8b787643 2584
1c90f9d4
JB		 2585 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2586 if (!msg)
2587 return -ENOMEM;
2588
66f7ac50
MW		 2589 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2590 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2591 &flags);
e057d3c3 2592
18003297 2593 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2594 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2595 return -EOPNOTSUPP;
2596
e35e4d28
HG		 2597 wdev = rdev_add_virtual_intf(rdev,
2598 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2599 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2600 if (IS_ERR(wdev)) {
2601 nlmsg_free(msg);
84efbb84 2602 return PTR_ERR(wdev);
1c90f9d4 2603 }
2ec600d6 2604
78f22b6a
JB		 2605 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2606 wdev->owner_nlportid = info->snd_portid;
2607
98104fde
JB		 2608 switch (type) {
2609 case NL80211_IFTYPE_MESH_POINT:
2610 if (!info->attrs[NL80211_ATTR_MESH_ID])
2611 break;
29cbe68c
JB		 2612 wdev_lock(wdev);
2613 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2614 IEEE80211_MAX_MESH_ID_LEN);
2615 wdev->mesh_id_up_len =
2616 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2617 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2618 wdev->mesh_id_up_len);
2619 wdev_unlock(wdev);
98104fde
JB		 2620 break;
2621 case NL80211_IFTYPE_P2P_DEVICE:
2622 /*
2623 * P2P Device doesn't have a netdev, so doesn't go
2624 * through the netdev notifier and must be added here
2625 */
2626 mutex_init(&wdev->mtx);
2627 INIT_LIST_HEAD(&wdev->event_list);
2628 spin_lock_init(&wdev->event_lock);
2629 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2630 spin_lock_init(&wdev->mgmt_registrations_lock);
2631
98104fde
JB		 2632 wdev->identifier = ++rdev->wdev_id;
2633 list_add_rcu(&wdev->list, &rdev->wdev_list);
2634 rdev->devlist_generation++;
98104fde
JB		 2635 break;
2636 default:
2637 break;
29cbe68c
JB		 2638 }
2639
15e47304 2640 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2641 rdev, wdev) < 0) {
2642 nlmsg_free(msg);
2643 return -ENOBUFS;
2644 }
2645
2646 return genlmsg_reply(msg, info);
55682965
JB		 2647}
2648
2649static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2650{
4c476991 2651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2652 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2653
4c476991
JB		 2654 if (!rdev->ops->del_virtual_intf)
2655 return -EOPNOTSUPP;
55682965 2656
84efbb84
JB		 2657 /*
2658 * If we remove a wireless device without a netdev then clear
2659 * user_ptr[1] so that nl80211_post_doit won't dereference it
2660 * to check if it needs to do dev_put(). Otherwise it crashes
2661 * since the wdev has been freed, unlike with a netdev where
2662 * we need the dev_put() for the netdev to really be freed.
2663 */
2664 if (!wdev->netdev)
2665 info->user_ptr[1] = NULL;
2666
e35e4d28 2667 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2668}
2669
1d9d9213
SW		 2670static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2671{
2672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2673 struct net_device *dev = info->user_ptr[1];
2674 u16 noack_map;
2675
2676 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2677 return -EINVAL;
2678
2679 if (!rdev->ops->set_noack_map)
2680 return -EOPNOTSUPP;
2681
2682 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2683
e35e4d28 2684 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2685}
2686
41ade00f
JB		 2687struct get_key_cookie {
2688 struct sk_buff *msg;
2689 int error;
b9454e83 2690 int idx;
41ade00f
JB		 2691};
2692
2693static void get_key_callback(void *c, struct key_params *params)
2694{
b9454e83 2695 struct nlattr *key;
41ade00f
JB		 2696 struct get_key_cookie *cookie = c;
2697
9360ffd1
DM		 2698 if ((params->key &&
2699 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2700 params->key_len, params->key)) ||
2701 (params->seq &&
2702 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2703 params->seq_len, params->seq)) ||
2704 (params->cipher &&
2705 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2706 params->cipher)))
2707 goto nla_put_failure;
41ade00f 2708
b9454e83
JB		 2709 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2710 if (!key)
2711 goto nla_put_failure;
2712
9360ffd1
DM		 2713 if ((params->key &&
2714 nla_put(cookie->msg, NL80211_KEY_DATA,
2715 params->key_len, params->key)) ||
2716 (params->seq &&
2717 nla_put(cookie->msg, NL80211_KEY_SEQ,
2718 params->seq_len, params->seq)) ||
2719 (params->cipher &&
2720 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2721 params->cipher)))
2722 goto nla_put_failure;
b9454e83 2723
9360ffd1
DM		 2724 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2725 goto nla_put_failure;
b9454e83
JB		 2726
2727 nla_nest_end(cookie->msg, key);
2728
41ade00f
JB		 2729 return;
2730 nla_put_failure:
2731 cookie->error = 1;
2732}
2733
2734static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2735{
4c476991 2736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2737 int err;
4c476991 2738 struct net_device *dev = info->user_ptr[1];
41ade00f 2739 u8 key_idx = 0;
e31b8213
JB		 2740 const u8 *mac_addr = NULL;
2741 bool pairwise;
41ade00f
JB		 2742 struct get_key_cookie cookie = {
2743 .error = 0,
2744 };
2745 void *hdr;
2746 struct sk_buff *msg;
2747
2748 if (info->attrs[NL80211_ATTR_KEY_IDX])
2749 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2750
3cfcf6ac 2751 if (key_idx > 5)
41ade00f
JB		 2752 return -EINVAL;
2753
2754 if (info->attrs[NL80211_ATTR_MAC])
2755 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2756
e31b8213
JB		 2757 pairwise = !!mac_addr;
2758 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2759 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2760 if (kt >= NUM_NL80211_KEYTYPES)
2761 return -EINVAL;
2762 if (kt != NL80211_KEYTYPE_GROUP &&
2763 kt != NL80211_KEYTYPE_PAIRWISE)
2764 return -EINVAL;
2765 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2766 }
2767
4c476991
JB		 2768 if (!rdev->ops->get_key)
2769 return -EOPNOTSUPP;
41ade00f 2770
fd2120ca 2771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2772 if (!msg)
2773 return -ENOMEM;
41ade00f 2774
15e47304 2775 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2776 NL80211_CMD_NEW_KEY);
cb35fba3 2777 if (!hdr)
9fe271af 2778 goto nla_put_failure;
41ade00f
JB		 2779
2780 cookie.msg = msg;
b9454e83 2781 cookie.idx = key_idx;
41ade00f 2782
9360ffd1
DM		 2783 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2784 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2785 goto nla_put_failure;
2786 if (mac_addr &&
2787 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2788 goto nla_put_failure;
41ade00f 2789
e31b8213
JB		 2790 if (pairwise && mac_addr &&
2791 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2792 return -ENOENT;
2793
e35e4d28
HG		 2794 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2795 get_key_callback);
41ade00f
JB		 2796
2797 if (err)
6c95e2a2 2798 goto free_msg;
41ade00f
JB		 2799
2800 if (cookie.error)
2801 goto nla_put_failure;
2802
2803 genlmsg_end(msg, hdr);
4c476991 2804 return genlmsg_reply(msg, info);
41ade00f
JB		 2805
2806 nla_put_failure:
2807 err = -ENOBUFS;
6c95e2a2 2808 free_msg:
41ade00f 2809 nlmsg_free(msg);
41ade00f
JB		 2810 return err;
2811}
2812
2813static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2814{
4c476991 2815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2816 struct key_parse key;
41ade00f 2817 int err;
4c476991 2818 struct net_device *dev = info->user_ptr[1];
41ade00f 2819
b9454e83
JB		 2820 err = nl80211_parse_key(info, &key);
2821 if (err)
2822 return err;
41ade00f 2823
b9454e83 2824 if (key.idx < 0)
41ade00f
JB		 2825 return -EINVAL;
2826
b9454e83
JB		 2827 /* only support setting default key */
2828 if (!key.def && !key.defmgmt)
41ade00f
JB		 2829 return -EINVAL;
2830
dbd2fd65 2831 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2832
dbd2fd65
JB		 2833 if (key.def) {
2834 if (!rdev->ops->set_default_key) {
2835 err = -EOPNOTSUPP;
2836 goto out;
2837 }
41ade00f 2838
dbd2fd65
JB		 2839 err = nl80211_key_allowed(dev->ieee80211_ptr);
2840 if (err)
2841 goto out;
2842
e35e4d28 2843 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2844 key.def_uni, key.def_multi);
2845
2846 if (err)
2847 goto out;
fffd0934 2848
3d23e349 2849#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2850 dev->ieee80211_ptr->wext.default_key = key.idx;
2851#endif
2852 } else {
2853 if (key.def_uni || !key.def_multi) {
2854 err = -EINVAL;
2855 goto out;
2856 }
2857
2858 if (!rdev->ops->set_default_mgmt_key) {
2859 err = -EOPNOTSUPP;
2860 goto out;
2861 }
2862
2863 err = nl80211_key_allowed(dev->ieee80211_ptr);
2864 if (err)
2865 goto out;
2866
e35e4d28 2867 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2868 if (err)
2869 goto out;
2870
2871#ifdef CONFIG_CFG80211_WEXT
2872 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2873#endif
dbd2fd65
JB		 2874 }
2875
2876 out:
fffd0934 2877 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2878
41ade00f
JB		 2879 return err;
2880}
2881
2882static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2883{
4c476991 2884 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2885 int err;
4c476991 2886 struct net_device *dev = info->user_ptr[1];
b9454e83 2887 struct key_parse key;
e31b8213 2888 const u8 *mac_addr = NULL;
41ade00f 2889
b9454e83
JB		 2890 err = nl80211_parse_key(info, &key);
2891 if (err)
2892 return err;
41ade00f 2893
b9454e83 2894 if (!key.p.key)
41ade00f
JB		 2895 return -EINVAL;
2896
41ade00f
JB		 2897 if (info->attrs[NL80211_ATTR_MAC])
2898 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2899
e31b8213
JB		 2900 if (key.type == -1) {
2901 if (mac_addr)
2902 key.type = NL80211_KEYTYPE_PAIRWISE;
2903 else
2904 key.type = NL80211_KEYTYPE_GROUP;
2905 }
2906
2907 /* for now */
2908 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2909 key.type != NL80211_KEYTYPE_GROUP)
2910 return -EINVAL;
2911
4c476991
JB		 2912 if (!rdev->ops->add_key)
2913 return -EOPNOTSUPP;
25e47c18 2914
e31b8213
JB		 2915 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2916 key.type == NL80211_KEYTYPE_PAIRWISE,
2917 mac_addr))
4c476991 2918 return -EINVAL;
41ade00f 2919
fffd0934
JB		 2920 wdev_lock(dev->ieee80211_ptr);
2921 err = nl80211_key_allowed(dev->ieee80211_ptr);
2922 if (!err)
e35e4d28
HG		 2923 err = rdev_add_key(rdev, dev, key.idx,
2924 key.type == NL80211_KEYTYPE_PAIRWISE,
2925 mac_addr, &key.p);
fffd0934 2926 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2927
41ade00f
JB		 2928 return err;
2929}
2930
2931static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2932{
4c476991 2933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2934 int err;
4c476991 2935 struct net_device *dev = info->user_ptr[1];
41ade00f 2936 u8 *mac_addr = NULL;
b9454e83 2937 struct key_parse key;
41ade00f 2938
b9454e83
JB		 2939 err = nl80211_parse_key(info, &key);
2940 if (err)
2941 return err;
41ade00f
JB		 2942
2943 if (info->attrs[NL80211_ATTR_MAC])
2944 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2945
e31b8213
JB		 2946 if (key.type == -1) {
2947 if (mac_addr)
2948 key.type = NL80211_KEYTYPE_PAIRWISE;
2949 else
2950 key.type = NL80211_KEYTYPE_GROUP;
2951 }
2952
2953 /* for now */
2954 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2955 key.type != NL80211_KEYTYPE_GROUP)
2956 return -EINVAL;
2957
4c476991
JB		 2958 if (!rdev->ops->del_key)
2959 return -EOPNOTSUPP;
41ade00f 2960
fffd0934
JB		 2961 wdev_lock(dev->ieee80211_ptr);
2962 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2963
2964 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2965 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2966 err = -ENOENT;
2967
fffd0934 2968 if (!err)
e35e4d28
HG		 2969 err = rdev_del_key(rdev, dev, key.idx,
2970 key.type == NL80211_KEYTYPE_PAIRWISE,
2971 mac_addr);
41ade00f 2972
3d23e349 2973#ifdef CONFIG_CFG80211_WEXT
08645126 2974 if (!err) {
b9454e83 2975 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2976 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2977 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2978 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2979 }
2980#endif
fffd0934 2981 wdev_unlock(dev->ieee80211_ptr);
08645126 2982
41ade00f
JB		 2983 return err;
2984}
2985
77765eaf
VT		 2986/* This function returns an error or the number of nested attributes */
2987static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2988{
2989 struct nlattr *attr;
2990 int n_entries = 0, tmp;
2991
2992 nla_for_each_nested(attr, nl_attr, tmp) {
2993 if (nla_len(attr) != ETH_ALEN)
2994 return -EINVAL;
2995
2996 n_entries++;
2997 }
2998
2999 return n_entries;
3000}
3001
3002/*
3003 * This function parses ACL information and allocates memory for ACL data.
3004 * On successful return, the calling function is responsible to free the
3005 * ACL buffer returned by this function.
3006 */
3007static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3008 struct genl_info *info)
3009{
3010 enum nl80211_acl_policy acl_policy;
3011 struct nlattr *attr;
3012 struct cfg80211_acl_data *acl;
3013 int i = 0, n_entries, tmp;
3014
3015 if (!wiphy->max_acl_mac_addrs)
3016 return ERR_PTR(-EOPNOTSUPP);
3017
3018 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3019 return ERR_PTR(-EINVAL);
3020
3021 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3022 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3023 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3024 return ERR_PTR(-EINVAL);
3025
3026 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3027 return ERR_PTR(-EINVAL);
3028
3029 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3030 if (n_entries < 0)
3031 return ERR_PTR(n_entries);
3032
3033 if (n_entries > wiphy->max_acl_mac_addrs)
3034 return ERR_PTR(-ENOTSUPP);
3035
3036 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3037 GFP_KERNEL);
3038 if (!acl)
3039 return ERR_PTR(-ENOMEM);
3040
3041 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3042 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3043 i++;
3044 }
3045
3046 acl->n_acl_entries = n_entries;
3047 acl->acl_policy = acl_policy;
3048
3049 return acl;
3050}
3051
3052static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3053{
3054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3055 struct net_device *dev = info->user_ptr[1];
3056 struct cfg80211_acl_data *acl;
3057 int err;
3058
3059 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3060 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3061 return -EOPNOTSUPP;
3062
3063 if (!dev->ieee80211_ptr->beacon_interval)
3064 return -EINVAL;
3065
3066 acl = parse_acl_data(&rdev->wiphy, info);
3067 if (IS_ERR(acl))
3068 return PTR_ERR(acl);
3069
3070 err = rdev_set_mac_acl(rdev, dev, acl);
3071
3072 kfree(acl);
3073
3074 return err;
3075}
3076
a1193be8 3077static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3078 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3079{
8860020e 3080 bool haveinfo = false;
ed1b6cc7 3081
a1193be8
SW		 3082 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3083 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3084 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3085 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3086 return -EINVAL;
3087
8860020e 3088 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3089
a1193be8
SW		 3090 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3091 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3092 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3093 if (!bcn->head_len)
3094 return -EINVAL;
3095 haveinfo = true;
ed1b6cc7
JB		 3096 }
3097
a1193be8
SW		 3098 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3099 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3100 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3101 haveinfo = true;
ed1b6cc7
JB		 3102 }
3103
4c476991
JB		 3104 if (!haveinfo)
3105 return -EINVAL;
3b85875a 3106
a1193be8
SW		 3107 if (attrs[NL80211_ATTR_IE]) {
3108 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3109 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3110 }
3111
a1193be8 3112 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3113 bcn->proberesp_ies =
a1193be8 3114 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3115 bcn->proberesp_ies_len =
a1193be8 3116 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3117 }
3118
a1193be8 3119 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3120 bcn->assocresp_ies =
a1193be8 3121 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3122 bcn->assocresp_ies_len =
a1193be8 3123 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3124 }
3125
a1193be8
SW		 3126 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3127 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3128 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3129 }
3130
8860020e
JB		 3131 return 0;
3132}
3133
46c1dd0c
FF		 3134static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3135 struct cfg80211_ap_settings *params)
3136{
3137 struct wireless_dev *wdev;
3138 bool ret = false;
3139
89a54e48 3140 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3141 if (wdev->iftype != NL80211_IFTYPE_AP &&
3142 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3143 continue;
3144
683b6d3b 3145 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3146 continue;
3147
683b6d3b 3148 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3149 ret = true;
3150 break;
3151 }
3152
46c1dd0c
FF		 3153 return ret;
3154}
3155
e39e5b5e
JM		 3156static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3157 enum nl80211_auth_type auth_type,
3158 enum nl80211_commands cmd)
3159{
3160 if (auth_type > NL80211_AUTHTYPE_MAX)
3161 return false;
3162
3163 switch (cmd) {
3164 case NL80211_CMD_AUTHENTICATE:
3165 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3166 auth_type == NL80211_AUTHTYPE_SAE)
3167 return false;
3168 return true;
3169 case NL80211_CMD_CONNECT:
3170 case NL80211_CMD_START_AP:
3171 /* SAE not supported yet */
3172 if (auth_type == NL80211_AUTHTYPE_SAE)
3173 return false;
3174 return true;
3175 default:
3176 return false;
3177 }
3178}
3179
8860020e
JB		 3180static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3181{
3182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3183 struct net_device *dev = info->user_ptr[1];
3184 struct wireless_dev *wdev = dev->ieee80211_ptr;
3185 struct cfg80211_ap_settings params;
3186 int err;
3187
3188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3190 return -EOPNOTSUPP;
3191
3192 if (!rdev->ops->start_ap)
3193 return -EOPNOTSUPP;
3194
3195 if (wdev->beacon_interval)
3196 return -EALREADY;
3197
3198 memset(&params, 0, sizeof(params));
3199
3200 /* these are required for START_AP */
3201 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3202 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3203 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3204 return -EINVAL;
3205
a1193be8 3206 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3207 if (err)
3208 return err;
3209
3210 params.beacon_interval =
3211 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3212 params.dtim_period =
3213 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3214
3215 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3216 if (err)
3217 return err;
3218
3219 /*
3220 * In theory, some of these attributes should be required here
3221 * but since they were not used when the command was originally
3222 * added, keep them optional for old user space programs to let
3223 * them continue to work with drivers that do not need the
3224 * additional information -- drivers must check!
3225 */
3226 if (info->attrs[NL80211_ATTR_SSID]) {
3227 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3228 params.ssid_len =
3229 nla_len(info->attrs[NL80211_ATTR_SSID]);
3230 if (params.ssid_len == 0 ||
3231 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3232 return -EINVAL;
3233 }
3234
3235 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3236 params.hidden_ssid = nla_get_u32(
3237 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3238 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3239 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3240 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3241 return -EINVAL;
3242 }
3243
3244 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3245
3246 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3247 params.auth_type = nla_get_u32(
3248 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3249 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3250 NL80211_CMD_START_AP))
8860020e
JB		 3251 return -EINVAL;
3252 } else
3253 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3254
3255 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3256 NL80211_MAX_NR_CIPHER_SUITES);
3257 if (err)
3258 return err;
3259
1b658f11
VT		 3260 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3261 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3262 return -EOPNOTSUPP;
3263 params.inactivity_timeout = nla_get_u16(
3264 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3265 }
3266
53cabad7
JB		 3267 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3269 return -EINVAL;
3270 params.p2p_ctwindow =
3271 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3272 if (params.p2p_ctwindow > 127)
3273 return -EINVAL;
3274 if (params.p2p_ctwindow != 0 &&
3275 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3276 return -EINVAL;
3277 }
3278
3279 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3280 u8 tmp;
3281
3282 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3283 return -EINVAL;
3284 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3285 if (tmp > 1)
3286 return -EINVAL;
3287 params.p2p_opp_ps = tmp;
3288 if (params.p2p_opp_ps != 0 &&
3289 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3290 return -EINVAL;
3291 }
3292
aa430da4 3293 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3294 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3295 if (err)
3296 return err;
3297 } else if (wdev->preset_chandef.chan) {
3298 params.chandef = wdev->preset_chandef;
46c1dd0c 3299 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3300 return -EINVAL;
3301
174e0cd2
IP		 3302 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3303 wdev->iftype))
aa430da4
JB		 3304 return -EINVAL;
3305
77765eaf
VT		 3306 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3307 params.acl = parse_acl_data(&rdev->wiphy, info);
3308 if (IS_ERR(params.acl))
3309 return PTR_ERR(params.acl);
3310 }
3311
c56589ed 3312 wdev_lock(wdev);
e35e4d28 3313 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3314 if (!err) {
683b6d3b 3315 wdev->preset_chandef = params.chandef;
8860020e 3316 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3317 wdev->chandef = params.chandef;
06e191e2
AQ		 3318 wdev->ssid_len = params.ssid_len;
3319 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3320 }
c56589ed 3321 wdev_unlock(wdev);
77765eaf
VT		 3322
3323 kfree(params.acl);
3324
56d1893d 3325 return err;
ed1b6cc7
JB		 3326}
3327
8860020e
JB		 3328static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3329{
3330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3331 struct net_device *dev = info->user_ptr[1];
3332 struct wireless_dev *wdev = dev->ieee80211_ptr;
3333 struct cfg80211_beacon_data params;
3334 int err;
3335
3336 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3337 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3338 return -EOPNOTSUPP;
3339
3340 if (!rdev->ops->change_beacon)
3341 return -EOPNOTSUPP;
3342
3343 if (!wdev->beacon_interval)
3344 return -EINVAL;
3345
a1193be8 3346 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3347 if (err)
3348 return err;
3349
c56589ed
SW		 3350 wdev_lock(wdev);
3351 err = rdev_change_beacon(rdev, dev, &params);
3352 wdev_unlock(wdev);
3353
3354 return err;
8860020e
JB		 3355}
3356
3357static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3358{
4c476991
JB		 3359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3360 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3361
7c8d5e03 3362 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3363}
3364
5727ef1b
JB		 3365static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3366 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3367 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3368 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3369 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3370 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3371 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3372};
3373
eccb8e8f 3374static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3375 enum nl80211_iftype iftype,
eccb8e8f 3376 struct station_parameters *params)
5727ef1b
JB		 3377{
3378 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3379 struct nlattr *nla;
5727ef1b
JB		 3380 int flag;
3381
eccb8e8f
JB		 3382 /*
3383 * Try parsing the new attribute first so userspace
3384 * can specify both for older kernels.
3385 */
3386 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3387 if (nla) {
3388 struct nl80211_sta_flag_update *sta_flags;
3389
3390 sta_flags = nla_data(nla);
3391 params->sta_flags_mask = sta_flags->mask;
3392 params->sta_flags_set = sta_flags->set;
77ee7c89 3393 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3394 if ((params->sta_flags_mask |
3395 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3396 return -EINVAL;
3397 return 0;
3398 }
3399
3400 /* if present, parse the old attribute */
5727ef1b 3401
eccb8e8f 3402 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3403 if (!nla)
3404 return 0;
3405
3406 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3407 nla, sta_flags_policy))
3408 return -EINVAL;
3409
bdd3ae3d
JB		 3410 /*
3411 * Only allow certain flags for interface types so that
3412 * other attributes are silently ignored. Remember that
3413 * this is backward compatibility code with old userspace
3414 * and shouldn't be hit in other cases anyway.
3415 */
3416 switch (iftype) {
3417 case NL80211_IFTYPE_AP:
3418 case NL80211_IFTYPE_AP_VLAN:
3419 case NL80211_IFTYPE_P2P_GO:
3420 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3421 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3422 BIT(NL80211_STA_FLAG_WME) |
3423 BIT(NL80211_STA_FLAG_MFP);
3424 break;
3425 case NL80211_IFTYPE_P2P_CLIENT:
3426 case NL80211_IFTYPE_STATION:
3427 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3428 BIT(NL80211_STA_FLAG_TDLS_PEER);
3429 break;
3430 case NL80211_IFTYPE_MESH_POINT:
3431 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3432 BIT(NL80211_STA_FLAG_MFP) |
3433 BIT(NL80211_STA_FLAG_AUTHORIZED);
3434 default:
3435 return -EINVAL;
3436 }
5727ef1b 3437
3383b5a6
JB		 3438 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3439 if (flags[flag]) {
eccb8e8f 3440 params->sta_flags_set |= (1<<flag);
5727ef1b 3441
3383b5a6
JB		 3442 /* no longer support new API additions in old API */
3443 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3444 return -EINVAL;
3445 }
3446 }
3447
5727ef1b
JB		 3448 return 0;
3449}
3450
c8dcfd8a
FF		 3451static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3452 int attr)
3453{
3454 struct nlattr *rate;
8eb41c8d
VK		 3455 u32 bitrate;
3456 u16 bitrate_compat;
c8dcfd8a
FF		 3457
3458 rate = nla_nest_start(msg, attr);
3459 if (!rate)
db9c64cf 3460 return false;
c8dcfd8a
FF		 3461
3462 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3463 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3464 /* report 16-bit bitrate only if we can */
3465 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3466 if (bitrate > 0 &&
3467 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3468 return false;
3469 if (bitrate_compat > 0 &&
3470 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3471 return false;
3472
3473 if (info->flags & RATE_INFO_FLAGS_MCS) {
3474 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3475 return false;
3476 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3477 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3478 return false;
3479 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3480 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3481 return false;
3482 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3483 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3484 return false;
3485 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3486 return false;
3487 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3488 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3489 return false;
3490 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3491 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3492 return false;
3493 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3494 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3495 return false;
3496 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3497 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3498 return false;
3499 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3500 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3501 return false;
3502 }
c8dcfd8a
FF		 3503
3504 nla_nest_end(msg, rate);
3505 return true;
c8dcfd8a
FF		 3506}
3507
119363c7
FF		 3508static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3509 int id)
3510{
3511 void *attr;
3512 int i = 0;
3513
3514 if (!mask)
3515 return true;
3516
3517 attr = nla_nest_start(msg, id);
3518 if (!attr)
3519 return false;
3520
3521 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3522 if (!(mask & BIT(i)))
3523 continue;
3524
3525 if (nla_put_u8(msg, i, signal[i]))
3526 return false;
3527 }
3528
3529 nla_nest_end(msg, attr);
3530
3531 return true;
3532}
3533
15e47304 3534static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3535 int flags,
3536 struct cfg80211_registered_device *rdev,
3537 struct net_device *dev,
98b62183 3538 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3539{
3540 void *hdr;
f4263c98 3541 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3542
15e47304 3543 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3544 if (!hdr)
3545 return -1;
3546
9360ffd1
DM		 3547 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3548 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3549 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3550 goto nla_put_failure;
f5ea9120 3551
2ec600d6
LCC		 3552 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3553 if (!sinfoattr)
fd5b74dc 3554 goto nla_put_failure;
9360ffd1
DM		 3555 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3556 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3557 sinfo->connected_time))
3558 goto nla_put_failure;
3559 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3560 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3561 sinfo->inactive_time))
3562 goto nla_put_failure;
42745e03
VK		 3563 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3564 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3565 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3566 (u32)sinfo->rx_bytes))
9360ffd1 3567 goto nla_put_failure;
42745e03 3568 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3569 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3570 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3571 (u32)sinfo->tx_bytes))
3572 goto nla_put_failure;
3573 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3574 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3575 sinfo->rx_bytes))
3576 goto nla_put_failure;
3577 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3578 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3579 sinfo->tx_bytes))
3580 goto nla_put_failure;
3581 if ((sinfo->filled & STATION_INFO_LLID) &&
3582 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3583 goto nla_put_failure;
3584 if ((sinfo->filled & STATION_INFO_PLID) &&
3585 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3586 goto nla_put_failure;
3587 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3588 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3589 sinfo->plink_state))
3590 goto nla_put_failure;
66266b3a
JL		 3591 switch (rdev->wiphy.signal_type) {
3592 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3593 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3594 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3595 sinfo->signal))
3596 goto nla_put_failure;
3597 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3598 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3599 sinfo->signal_avg))
3600 goto nla_put_failure;
66266b3a
JL		 3601 break;
3602 default:
3603 break;
3604 }
119363c7
FF		 3605 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3606 if (!nl80211_put_signal(msg, sinfo->chains,
3607 sinfo->chain_signal,
3608 NL80211_STA_INFO_CHAIN_SIGNAL))
3609 goto nla_put_failure;
3610 }
3611 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3612 if (!nl80211_put_signal(msg, sinfo->chains,
3613 sinfo->chain_signal_avg,
3614 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3615 goto nla_put_failure;
3616 }
420e7fab 3617 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3618 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3619 NL80211_STA_INFO_TX_BITRATE))
3620 goto nla_put_failure;
3621 }
3622 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3623 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3624 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3625 goto nla_put_failure;
420e7fab 3626 }
9360ffd1
DM		 3627 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3628 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3629 sinfo->rx_packets))
3630 goto nla_put_failure;
3631 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3632 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3633 sinfo->tx_packets))
3634 goto nla_put_failure;
3635 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3636 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3637 sinfo->tx_retries))
3638 goto nla_put_failure;
3639 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3640 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3641 sinfo->tx_failed))
3642 goto nla_put_failure;
3643 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3644 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3645 sinfo->beacon_loss_count))
3646 goto nla_put_failure;
3b1c5a53
MP		 3647 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3648 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3649 sinfo->local_pm))
3650 goto nla_put_failure;
3651 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3652 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3653 sinfo->peer_pm))
3654 goto nla_put_failure;
3655 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3656 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3657 sinfo->nonpeer_pm))
3658 goto nla_put_failure;
f4263c98
PS		 3659 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3660 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3661 if (!bss_param)
3662 goto nla_put_failure;
3663
9360ffd1
DM		 3664 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3665 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3666 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3667 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3668 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3669 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3670 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3671 sinfo->bss_param.dtim_period) ||
3672 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3673 sinfo->bss_param.beacon_interval))
3674 goto nla_put_failure;
f4263c98
PS		 3675
3676 nla_nest_end(msg, bss_param);
3677 }
9360ffd1
DM		 3678 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3679 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3680 sizeof(struct nl80211_sta_flag_update),
3681 &sinfo->sta_flags))
3682 goto nla_put_failure;
7eab0f64
JL		 3683 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3684 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3685 sinfo->t_offset))
3686 goto nla_put_failure;
2ec600d6 3687 nla_nest_end(msg, sinfoattr);
fd5b74dc 3688
9360ffd1
DM		 3689 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3690 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3691 sinfo->assoc_req_ies))
3692 goto nla_put_failure;
50d3dfb7 3693
fd5b74dc
JB		 3694 return genlmsg_end(msg, hdr);
3695
3696 nla_put_failure:
bc3ed28c
TG		 3697 genlmsg_cancel(msg, hdr);
3698 return -EMSGSIZE;
fd5b74dc
JB		 3699}
3700
2ec600d6 3701static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3702 struct netlink_callback *cb)
2ec600d6 3703{
2ec600d6 3704 struct station_info sinfo;
1b8ec87a 3705 struct cfg80211_registered_device *rdev;
97990a06 3706 struct wireless_dev *wdev;
2ec600d6 3707 u8 mac_addr[ETH_ALEN];
97990a06 3708 int sta_idx = cb->args[2];
2ec600d6 3709 int err;
2ec600d6 3710
1b8ec87a 3711 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3712 if (err)
3713 return err;
bba95fef 3714
97990a06
JB		 3715 if (!wdev->netdev) {
3716 err = -EINVAL;
3717 goto out_err;
3718 }
3719
1b8ec87a 3720 if (!rdev->ops->dump_station) {
eec60b03 3721 err = -EOPNOTSUPP;
bba95fef
JB		 3722 goto out_err;
3723 }
3724
bba95fef 3725 while (1) {
f612cedf 3726 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3727 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3728 mac_addr, &sinfo);
bba95fef
JB		 3729 if (err == -ENOENT)
3730 break;
3731 if (err)
3b85875a 3732 goto out_err;
bba95fef
JB		 3733
3734 if (nl80211_send_station(skb,
15e47304 3735 NETLINK_CB(cb->skb).portid,
bba95fef 3736 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3737 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3738 &sinfo) < 0)
3739 goto out;
3740
3741 sta_idx++;
3742 }
3743
3744
3745 out:
97990a06 3746 cb->args[2] = sta_idx;
bba95fef 3747 err = skb->len;
bba95fef 3748 out_err:
1b8ec87a 3749 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3750
3751 return err;
2ec600d6 3752}
fd5b74dc 3753
5727ef1b
JB		 3754static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3755{
4c476991
JB		 3756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3757 struct net_device *dev = info->user_ptr[1];
2ec600d6 3758 struct station_info sinfo;
fd5b74dc
JB		 3759 struct sk_buff *msg;
3760 u8 *mac_addr = NULL;
4c476991 3761 int err;
fd5b74dc 3762
2ec600d6 3763 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3764
3765 if (!info->attrs[NL80211_ATTR_MAC])
3766 return -EINVAL;
3767
3768 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3769
4c476991
JB		 3770 if (!rdev->ops->get_station)
3771 return -EOPNOTSUPP;
3b85875a 3772
e35e4d28 3773 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3774 if (err)
4c476991 3775 return err;
2ec600d6 3776
fd2120ca 3777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3778 if (!msg)
4c476991 3779 return -ENOMEM;
fd5b74dc 3780
15e47304 3781 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3782 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3783 nlmsg_free(msg);
3784 return -ENOBUFS;
3785 }
3b85875a 3786
4c476991 3787 return genlmsg_reply(msg, info);
5727ef1b
JB		 3788}
3789
77ee7c89
JB		 3790int cfg80211_check_station_change(struct wiphy *wiphy,
3791 struct station_parameters *params,
3792 enum cfg80211_station_type statype)
3793{
3794 if (params->listen_interval != -1)
3795 return -EINVAL;
3796 if (params->aid)
3797 return -EINVAL;
3798
3799 /* When you run into this, adjust the code below for the new flag */
3800 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3801
3802 switch (statype) {
eef941e6
TP		 3803 case CFG80211_STA_MESH_PEER_KERNEL:
3804 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3805 /*
3806 * No ignoring the TDLS flag here -- the userspace mesh
3807 * code doesn't have the bug of including TDLS in the
3808 * mask everywhere.
3809 */
3810 if (params->sta_flags_mask &
3811 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3812 BIT(NL80211_STA_FLAG_MFP) |
3813 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3814 return -EINVAL;
3815 break;
3816 case CFG80211_STA_TDLS_PEER_SETUP:
3817 case CFG80211_STA_TDLS_PEER_ACTIVE:
3818 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3819 return -EINVAL;
3820 /* ignore since it can't change */
3821 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3822 break;
3823 default:
3824 /* disallow mesh-specific things */
3825 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3826 return -EINVAL;
3827 if (params->local_pm)
3828 return -EINVAL;
3829 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3830 return -EINVAL;
3831 }
3832
3833 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3834 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3835 /* TDLS can't be set, ... */
3836 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3837 return -EINVAL;
3838 /*
3839 * ... but don't bother the driver with it. This works around
3840 * a hostapd/wpa_supplicant issue -- it always includes the
3841 * TLDS_PEER flag in the mask even for AP mode.
3842 */
3843 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3844 }
3845
3846 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3847 /* reject other things that can't change */
3848 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3849 return -EINVAL;
3850 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3851 return -EINVAL;
3852 if (params->supported_rates)
3853 return -EINVAL;
3854 if (params->ext_capab || params->ht_capa || params->vht_capa)
3855 return -EINVAL;
3856 }
3857
3858 if (statype != CFG80211_STA_AP_CLIENT) {
3859 if (params->vlan)
3860 return -EINVAL;
3861 }
3862
3863 switch (statype) {
3864 case CFG80211_STA_AP_MLME_CLIENT:
3865 /* Use this only for authorizing/unauthorizing a station */
3866 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3867 return -EOPNOTSUPP;
3868 break;
3869 case CFG80211_STA_AP_CLIENT:
3870 /* accept only the listed bits */
3871 if (params->sta_flags_mask &
3872 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3873 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3874 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3875 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3876 BIT(NL80211_STA_FLAG_WME) |
3877 BIT(NL80211_STA_FLAG_MFP)))
3878 return -EINVAL;
3879
3880 /* but authenticated/associated only if driver handles it */
3881 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3882 params->sta_flags_mask &
3883 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3884 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3885 return -EINVAL;
3886 break;
3887 case CFG80211_STA_IBSS:
3888 case CFG80211_STA_AP_STA:
3889 /* reject any changes other than AUTHORIZED */
3890 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3891 return -EINVAL;
3892 break;
3893 case CFG80211_STA_TDLS_PEER_SETUP:
3894 /* reject any changes other than AUTHORIZED or WME */
3895 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3896 BIT(NL80211_STA_FLAG_WME)))
3897 return -EINVAL;
3898 /* force (at least) rates when authorizing */
3899 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3900 !params->supported_rates)
3901 return -EINVAL;
3902 break;
3903 case CFG80211_STA_TDLS_PEER_ACTIVE:
3904 /* reject any changes */
3905 return -EINVAL;
eef941e6 3906 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3907 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3908 return -EINVAL;
3909 break;
eef941e6 3910 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3911 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3912 return -EINVAL;
3913 break;
3914 }
3915
3916 return 0;
3917}
3918EXPORT_SYMBOL(cfg80211_check_station_change);
3919
5727ef1b 3920/*
c258d2de 3921 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3922 */
80b99899
JB		 3923static struct net_device *get_vlan(struct genl_info *info,
3924 struct cfg80211_registered_device *rdev)
5727ef1b 3925{
463d0183 3926 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3927 struct net_device *v;
3928 int ret;
3929
3930 if (!vlanattr)
3931 return NULL;
3932
3933 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3934 if (!v)
3935 return ERR_PTR(-ENODEV);
3936
3937 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3938 ret = -EINVAL;
3939 goto error;
5727ef1b 3940 }
80b99899 3941
77ee7c89
JB		 3942 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3943 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3944 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3945 ret = -EINVAL;
3946 goto error;
3947 }
3948
80b99899
JB		 3949 if (!netif_running(v)) {
3950 ret = -ENETDOWN;
3951 goto error;
3952 }
3953
3954 return v;
3955 error:
3956 dev_put(v);
3957 return ERR_PTR(ret);
5727ef1b
JB		 3958}
3959
94e860f1
JB		 3960static const struct nla_policy
3961nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3962 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3963 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3964};
3965
ff276691
JB		 3966static int nl80211_parse_sta_wme(struct genl_info *info,
3967 struct station_parameters *params)
df881293 3968{
df881293
JM		 3969 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3970 struct nlattr *nla;
3971 int err;
3972
df881293
JM		 3973 /* parse WME attributes if present */
3974 if (!info->attrs[NL80211_ATTR_STA_WME])
3975 return 0;
3976
3977 nla = info->attrs[NL80211_ATTR_STA_WME];
3978 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3979 nl80211_sta_wme_policy);
3980 if (err)
3981 return err;
3982
3983 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3984 params->uapsd_queues = nla_get_u8(
3985 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3986 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3987 return -EINVAL;
3988
3989 if (tb[NL80211_STA_WME_MAX_SP])
3990 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3991
3992 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3993 return -EINVAL;
3994
3995 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3996
3997 return 0;
3998}
3999
c01fc9ad
SD		 4000static int nl80211_parse_sta_channel_info(struct genl_info *info,
4001 struct station_parameters *params)
4002{
4003 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4004 params->supported_channels =
4005 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4006 params->supported_channels_len =
4007 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4008 /*
4009 * Need to include at least one (first channel, number of
4010 * channels) tuple for each subband, and must have proper
4011 * tuples for the rest of the data as well.
4012 */
4013 if (params->supported_channels_len < 2)
4014 return -EINVAL;
4015 if (params->supported_channels_len % 2)
4016 return -EINVAL;
4017 }
4018
4019 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4020 params->supported_oper_classes =
4021 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4022 params->supported_oper_classes_len =
4023 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4024 /*
4025 * The value of the Length field of the Supported Operating
4026 * Classes element is between 2 and 253.
4027 */
4028 if (params->supported_oper_classes_len < 2 ||
4029 params->supported_oper_classes_len > 253)
4030 return -EINVAL;
4031 }
4032 return 0;
4033}
4034
ff276691
JB		 4035static int nl80211_set_station_tdls(struct genl_info *info,
4036 struct station_parameters *params)
4037{
c01fc9ad 4038 int err;
ff276691 4039 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4040 if (info->attrs[NL80211_ATTR_PEER_AID])
4041 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4042 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4043 params->ht_capa =
4044 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4045 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4046 params->vht_capa =
4047 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4048
c01fc9ad
SD		 4049 err = nl80211_parse_sta_channel_info(info, params);
4050 if (err)
4051 return err;
4052
ff276691
JB		 4053 return nl80211_parse_sta_wme(info, params);
4054}
4055
5727ef1b
JB		 4056static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4057{
4c476991 4058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4059 struct net_device *dev = info->user_ptr[1];
5727ef1b 4060 struct station_parameters params;
77ee7c89
JB		 4061 u8 *mac_addr;
4062 int err;
5727ef1b
JB		 4063
4064 memset(&params, 0, sizeof(params));
4065
4066 params.listen_interval = -1;
4067
77ee7c89
JB		 4068 if (!rdev->ops->change_station)
4069 return -EOPNOTSUPP;
4070
5727ef1b
JB		 4071 if (info->attrs[NL80211_ATTR_STA_AID])
4072 return -EINVAL;
4073
4074 if (!info->attrs[NL80211_ATTR_MAC])
4075 return -EINVAL;
4076
4077 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4078
4079 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4080 params.supported_rates =
4081 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4082 params.supported_rates_len =
4083 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4084 }
4085
9d62a986
JM		 4086 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4087 params.capability =
4088 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4089 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4090 }
4091
4092 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4093 params.ext_capab =
4094 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4095 params.ext_capab_len =
4096 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4097 }
4098
df881293 4099 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4100 return -EINVAL;
36aedc90 4101
bdd3ae3d 4102 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4103 return -EINVAL;
4104
f8bacc21 4105 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4106 params.plink_action =
f8bacc21
JB		 4107 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4108 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4109 return -EINVAL;
4110 }
2ec600d6 4111
f8bacc21 4112 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4113 params.plink_state =
f8bacc21
JB		 4114 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4115 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4116 return -EINVAL;
4117 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4118 }
9c3990aa 4119
3b1c5a53
MP		 4120 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4121 enum nl80211_mesh_power_mode pm = nla_get_u32(
4122 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4123
4124 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4125 pm > NL80211_MESH_POWER_MAX)
4126 return -EINVAL;
4127
4128 params.local_pm = pm;
4129 }
4130
77ee7c89
JB		 4131 /* Include parameters for TDLS peer (will check later) */
4132 err = nl80211_set_station_tdls(info, &params);
4133 if (err)
4134 return err;
4135
4136 params.vlan = get_vlan(info, rdev);
4137 if (IS_ERR(params.vlan))
4138 return PTR_ERR(params.vlan);
4139
a97f4424
JB		 4140 switch (dev->ieee80211_ptr->iftype) {
4141 case NL80211_IFTYPE_AP:
4142 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4143 case NL80211_IFTYPE_P2P_GO:
074ac8df 4144 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4145 case NL80211_IFTYPE_STATION:
267335d6 4146 case NL80211_IFTYPE_ADHOC:
a97f4424 4147 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4148 break;
4149 default:
77ee7c89
JB		 4150 err = -EOPNOTSUPP;
4151 goto out_put_vlan;
034d655e
JB		 4152 }
4153
77ee7c89 4154 /* driver will call cfg80211_check_station_change() */
e35e4d28 4155 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4156
77ee7c89 4157 out_put_vlan:
5727ef1b
JB		 4158 if (params.vlan)
4159 dev_put(params.vlan);
3b85875a 4160
5727ef1b
JB		 4161 return err;
4162}
4163
4164static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4165{
4c476991 4166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4167 int err;
4c476991 4168 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4169 struct station_parameters params;
4170 u8 *mac_addr = NULL;
4171
4172 memset(&params, 0, sizeof(params));
4173
984c311b
JB		 4174 if (!rdev->ops->add_station)
4175 return -EOPNOTSUPP;
4176
5727ef1b
JB		 4177 if (!info->attrs[NL80211_ATTR_MAC])
4178 return -EINVAL;
4179
5727ef1b
JB		 4180 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4181 return -EINVAL;
4182
4183 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4184 return -EINVAL;
4185
5e4b6f56
JM		 4186 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4187 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4188 return -EINVAL;
4189
5727ef1b
JB		 4190 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4191 params.supported_rates =
4192 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4193 params.supported_rates_len =
4194 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4195 params.listen_interval =
4196 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4197
3d124ea2 4198 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4199 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4200 else
4201 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4202 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4203 return -EINVAL;
51b50fbe 4204
9d62a986
JM		 4205 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4206 params.capability =
4207 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4208 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4209 }
4210
4211 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4212 params.ext_capab =
4213 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4214 params.ext_capab_len =
4215 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4216 }
4217
36aedc90
JM		 4218 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4219 params.ht_capa =
4220 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4221
f461be3e
MP		 4222 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4223 params.vht_capa =
4224 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4225
60f4a7b1
MK		 4226 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4227 params.opmode_notif_used = true;
4228 params.opmode_notif =
4229 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4230 }
4231
f8bacc21 4232 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4233 params.plink_action =
f8bacc21
JB		 4234 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4235 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4236 return -EINVAL;
4237 }
96b78dff 4238
c01fc9ad
SD		 4239 err = nl80211_parse_sta_channel_info(info, &params);
4240 if (err)
4241 return err;
4242
ff276691
JB		 4243 err = nl80211_parse_sta_wme(info, &params);
4244 if (err)
4245 return err;
bdd90d5e 4246
bdd3ae3d 4247 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4248 return -EINVAL;
4249
77ee7c89
JB		 4250 /* When you run into this, adjust the code below for the new flag */
4251 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4252
bdd90d5e
JB		 4253 switch (dev->ieee80211_ptr->iftype) {
4254 case NL80211_IFTYPE_AP:
4255 case NL80211_IFTYPE_AP_VLAN:
4256 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4257 /* ignore WME attributes if iface/sta is not capable */
4258 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4259 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4260 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4261
bdd90d5e 4262 /* TDLS peers cannot be added */
3d124ea2
JM		 4263 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4264 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4265 return -EINVAL;
bdd90d5e
JB		 4266 /* but don't bother the driver with it */
4267 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4268
d582cffb
JB		 4269 /* allow authenticated/associated only if driver handles it */
4270 if (!(rdev->wiphy.features &
4271 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4272 params.sta_flags_mask &
4273 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4274 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4275 return -EINVAL;
4276
bdd90d5e
JB		 4277 /* must be last in here for error handling */
4278 params.vlan = get_vlan(info, rdev);
4279 if (IS_ERR(params.vlan))
4280 return PTR_ERR(params.vlan);
4281 break;
4282 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4283 /* ignore uAPSD data */
4284 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4285
d582cffb
JB		 4286 /* associated is disallowed */
4287 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4288 return -EINVAL;
bdd90d5e 4289 /* TDLS peers cannot be added */
3d124ea2
JM		 4290 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4291 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4292 return -EINVAL;
4293 break;
4294 case NL80211_IFTYPE_STATION:
93d08f0b 4295 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4296 /* ignore uAPSD data */
4297 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4298
77ee7c89
JB		 4299 /* these are disallowed */
4300 if (params.sta_flags_mask &
4301 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4302 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4303 return -EINVAL;
bdd90d5e
JB		 4304 /* Only TDLS peers can be added */
4305 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4306 return -EINVAL;
4307 /* Can only add if TDLS ... */
4308 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4309 return -EOPNOTSUPP;
4310 /* ... with external setup is supported */
4311 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4312 return -EOPNOTSUPP;
77ee7c89
JB		 4313 /*
4314 * Older wpa_supplicant versions always mark the TDLS peer
4315 * as authorized, but it shouldn't yet be.
4316 */
4317 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4318 break;
4319 default:
4320 return -EOPNOTSUPP;
c75786c9
EP		 4321 }
4322
bdd90d5e 4323 /* be aware of params.vlan when changing code here */
5727ef1b 4324
e35e4d28 4325 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4326
5727ef1b
JB		 4327 if (params.vlan)
4328 dev_put(params.vlan);
5727ef1b
JB		 4329 return err;
4330}
4331
4332static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4333{
4c476991
JB		 4334 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4335 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4336 u8 *mac_addr = NULL;
4337
4338 if (info->attrs[NL80211_ATTR_MAC])
4339 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4340
e80cf853 4341 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4342 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4343 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4345 return -EINVAL;
5727ef1b 4346
4c476991
JB		 4347 if (!rdev->ops->del_station)
4348 return -EOPNOTSUPP;
3b85875a 4349
e35e4d28 4350 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4351}
4352
15e47304 4353static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4354 int flags, struct net_device *dev,
4355 u8 *dst, u8 *next_hop,
4356 struct mpath_info *pinfo)
4357{
4358 void *hdr;
4359 struct nlattr *pinfoattr;
4360
15e47304 4361 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4362 if (!hdr)
4363 return -1;
4364
9360ffd1
DM		 4365 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4366 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4367 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4368 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4369 goto nla_put_failure;
f5ea9120 4370
2ec600d6
LCC		 4371 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4372 if (!pinfoattr)
4373 goto nla_put_failure;
9360ffd1
DM		 4374 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4375 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4376 pinfo->frame_qlen))
4377 goto nla_put_failure;
4378 if (((pinfo->filled & MPATH_INFO_SN) &&
4379 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4380 ((pinfo->filled & MPATH_INFO_METRIC) &&
4381 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4382 pinfo->metric)) ||
4383 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4384 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4385 pinfo->exptime)) ||
4386 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4387 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4388 pinfo->flags)) ||
4389 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4390 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4391 pinfo->discovery_timeout)) ||
4392 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4393 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4394 pinfo->discovery_retries)))
4395 goto nla_put_failure;
2ec600d6
LCC		 4396
4397 nla_nest_end(msg, pinfoattr);
4398
4399 return genlmsg_end(msg, hdr);
4400
4401 nla_put_failure:
bc3ed28c
TG		 4402 genlmsg_cancel(msg, hdr);
4403 return -EMSGSIZE;
2ec600d6
LCC		 4404}
4405
4406static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4407 struct netlink_callback *cb)
2ec600d6 4408{
2ec600d6 4409 struct mpath_info pinfo;
1b8ec87a 4410 struct cfg80211_registered_device *rdev;
97990a06 4411 struct wireless_dev *wdev;
2ec600d6
LCC		 4412 u8 dst[ETH_ALEN];
4413 u8 next_hop[ETH_ALEN];
97990a06 4414 int path_idx = cb->args[2];
2ec600d6 4415 int err;
2ec600d6 4416
1b8ec87a 4417 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4418 if (err)
4419 return err;
bba95fef 4420
1b8ec87a 4421 if (!rdev->ops->dump_mpath) {
eec60b03 4422 err = -EOPNOTSUPP;
bba95fef
JB		 4423 goto out_err;
4424 }
4425
97990a06 4426 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4427 err = -EOPNOTSUPP;
0448b5fc 4428 goto out_err;
eec60b03
JM		 4429 }
4430
bba95fef 4431 while (1) {
1b8ec87a 4432 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4433 next_hop, &pinfo);
bba95fef 4434 if (err == -ENOENT)
2ec600d6 4435 break;
bba95fef 4436 if (err)
3b85875a 4437 goto out_err;
2ec600d6 4438
15e47304 4439 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4440 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4441 wdev->netdev, dst, next_hop,
bba95fef
JB		 4442 &pinfo) < 0)
4443 goto out;
2ec600d6 4444
bba95fef 4445 path_idx++;
2ec600d6 4446 }
2ec600d6 4447
2ec600d6 4448
bba95fef 4449 out:
97990a06 4450 cb->args[2] = path_idx;
bba95fef 4451 err = skb->len;
bba95fef 4452 out_err:
1b8ec87a 4453 nl80211_finish_wdev_dump(rdev);
bba95fef 4454 return err;
2ec600d6
LCC		 4455}
4456
4457static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4458{
4c476991 4459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4460 int err;
4c476991 4461 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4462 struct mpath_info pinfo;
4463 struct sk_buff *msg;
4464 u8 *dst = NULL;
4465 u8 next_hop[ETH_ALEN];
4466
4467 memset(&pinfo, 0, sizeof(pinfo));
4468
4469 if (!info->attrs[NL80211_ATTR_MAC])
4470 return -EINVAL;
4471
4472 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4473
4c476991
JB		 4474 if (!rdev->ops->get_mpath)
4475 return -EOPNOTSUPP;
2ec600d6 4476
4c476991
JB		 4477 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4478 return -EOPNOTSUPP;
eec60b03 4479
e35e4d28 4480 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4481 if (err)
4c476991 4482 return err;
2ec600d6 4483
fd2120ca 4484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4485 if (!msg)
4c476991 4486 return -ENOMEM;
2ec600d6 4487
15e47304 4488 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4489 dev, dst, next_hop, &pinfo) < 0) {
4490 nlmsg_free(msg);
4491 return -ENOBUFS;
4492 }
3b85875a 4493
4c476991 4494 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4495}
4496
4497static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4498{
4c476991
JB		 4499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4500 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4501 u8 *dst = NULL;
4502 u8 *next_hop = NULL;
4503
4504 if (!info->attrs[NL80211_ATTR_MAC])
4505 return -EINVAL;
4506
4507 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4508 return -EINVAL;
4509
4510 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4511 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4512
4c476991
JB		 4513 if (!rdev->ops->change_mpath)
4514 return -EOPNOTSUPP;
35a8efe1 4515
4c476991
JB		 4516 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4517 return -EOPNOTSUPP;
2ec600d6 4518
e35e4d28 4519 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4520}
4c476991 4521
2ec600d6
LCC		 4522static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4523{
4c476991
JB		 4524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4525 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4526 u8 *dst = NULL;
4527 u8 *next_hop = NULL;
4528
4529 if (!info->attrs[NL80211_ATTR_MAC])
4530 return -EINVAL;
4531
4532 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4533 return -EINVAL;
4534
4535 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4536 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4537
4c476991
JB		 4538 if (!rdev->ops->add_mpath)
4539 return -EOPNOTSUPP;
35a8efe1 4540
4c476991
JB		 4541 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4542 return -EOPNOTSUPP;
2ec600d6 4543
e35e4d28 4544 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4545}
4546
4547static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4548{
4c476991
JB		 4549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4550 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4551 u8 *dst = NULL;
4552
4553 if (info->attrs[NL80211_ATTR_MAC])
4554 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4555
4c476991
JB		 4556 if (!rdev->ops->del_mpath)
4557 return -EOPNOTSUPP;
3b85875a 4558
e35e4d28 4559 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4560}
4561
9f1ba906
JM		 4562static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4563{
4c476991
JB		 4564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4565 struct net_device *dev = info->user_ptr[1];
c56589ed 4566 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4567 struct bss_parameters params;
c56589ed 4568 int err;
9f1ba906
JM		 4569
4570 memset(&params, 0, sizeof(params));
4571 /* default to not changing parameters */
4572 params.use_cts_prot = -1;
4573 params.use_short_preamble = -1;
4574 params.use_short_slot_time = -1;
fd8aaaf3 4575 params.ap_isolate = -1;
50b12f59 4576 params.ht_opmode = -1;
53cabad7
JB		 4577 params.p2p_ctwindow = -1;
4578 params.p2p_opp_ps = -1;
9f1ba906
JM		 4579
4580 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4581 params.use_cts_prot =
4582 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4583 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4584 params.use_short_preamble =
4585 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4586 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4587 params.use_short_slot_time =
4588 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4589 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4590 params.basic_rates =
4591 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4592 params.basic_rates_len =
4593 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4594 }
fd8aaaf3
FF		 4595 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4596 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4597 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4598 params.ht_opmode =
4599 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4600
53cabad7
JB		 4601 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4603 return -EINVAL;
4604 params.p2p_ctwindow =
4605 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4606 if (params.p2p_ctwindow < 0)
4607 return -EINVAL;
4608 if (params.p2p_ctwindow != 0 &&
4609 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4610 return -EINVAL;
4611 }
4612
4613 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4614 u8 tmp;
4615
4616 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4617 return -EINVAL;
4618 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4619 if (tmp > 1)
4620 return -EINVAL;
4621 params.p2p_opp_ps = tmp;
4622 if (params.p2p_opp_ps &&
4623 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4624 return -EINVAL;
4625 }
4626
4c476991
JB		 4627 if (!rdev->ops->change_bss)
4628 return -EOPNOTSUPP;
9f1ba906 4629
074ac8df 4630 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4631 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4632 return -EOPNOTSUPP;
3b85875a 4633
c56589ed
SW		 4634 wdev_lock(wdev);
4635 err = rdev_change_bss(rdev, dev, &params);
4636 wdev_unlock(wdev);
4637
4638 return err;
9f1ba906
JM		 4639}
4640
b54452b0 4641static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4642 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4643 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4644 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4645 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4646 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4647 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4648 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4649};
4650
4651static int parse_reg_rule(struct nlattr *tb[],
4652 struct ieee80211_reg_rule *reg_rule)
4653{
4654 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4655 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4656
4657 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4658 return -EINVAL;
4659 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4660 return -EINVAL;
4661 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4662 return -EINVAL;
b0dfd2ea
JD		 4663 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4664 return -EINVAL;
b2e1b302
LR		 4665 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4666 return -EINVAL;
4667
4668 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4669
4670 freq_range->start_freq_khz =
4671 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4672 freq_range->end_freq_khz =
4673 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4674 freq_range->max_bandwidth_khz =
4675 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4676
4677 power_rule->max_eirp =
4678 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4679
4680 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4681 power_rule->max_antenna_gain =
4682 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4683
089027e5
JD		 4684 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4685 reg_rule->dfs_cac_ms =
4686 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4687
b2e1b302
LR		 4688 return 0;
4689}
4690
4691static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4692{
b2e1b302 4693 char *data = NULL;
57b5ce07 4694 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4695
80778f18
LR		 4696 /*
4697 * You should only get this when cfg80211 hasn't yet initialized
4698 * completely when built-in to the kernel right between the time
4699 * window between nl80211_init() and regulatory_init(), if that is
4700 * even possible.
4701 */
458f4f9e 4702 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4703 return -EINPROGRESS;
80778f18 4704
57b5ce07
LR		 4705 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4706 user_reg_hint_type =
4707 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4708 else
4709 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4710
4711 switch (user_reg_hint_type) {
4712 case NL80211_USER_REG_HINT_USER:
4713 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4714 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4715 return -EINVAL;
4716
4717 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4718 return regulatory_hint_user(data, user_reg_hint_type);
4719 case NL80211_USER_REG_HINT_INDOOR:
4720 return regulatory_hint_indoor_user();
57b5ce07
LR		 4721 default:
4722 return -EINVAL;
4723 }
b2e1b302
LR		 4724}
4725
24bdd9f4 4726static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4727 struct genl_info *info)
93da9cc1 4728{
4c476991 4729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4730 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4731 struct wireless_dev *wdev = dev->ieee80211_ptr;
4732 struct mesh_config cur_params;
4733 int err = 0;
93da9cc1 4734 void *hdr;
4735 struct nlattr *pinfoattr;
4736 struct sk_buff *msg;
4737
29cbe68c
JB		 4738 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4739 return -EOPNOTSUPP;
4740
24bdd9f4 4741 if (!rdev->ops->get_mesh_config)
4c476991 4742 return -EOPNOTSUPP;
f3f92586 4743
29cbe68c
JB		 4744 wdev_lock(wdev);
4745 /* If not connected, get default parameters */
4746 if (!wdev->mesh_id_len)
4747 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4748 else
e35e4d28 4749 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4750 wdev_unlock(wdev);
4751
93da9cc1 4752 if (err)
4c476991 4753 return err;
93da9cc1 4754
4755 /* Draw up a netlink message to send back */
fd2120ca 4756 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4757 if (!msg)
4758 return -ENOMEM;
15e47304 4759 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4760 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4761 if (!hdr)
efe1cf0c 4762 goto out;
24bdd9f4 4763 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4764 if (!pinfoattr)
4765 goto nla_put_failure;
9360ffd1
DM		 4766 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4767 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4768 cur_params.dot11MeshRetryTimeout) ||
4769 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4770 cur_params.dot11MeshConfirmTimeout) ||
4771 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4772 cur_params.dot11MeshHoldingTimeout) ||
4773 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4774 cur_params.dot11MeshMaxPeerLinks) ||
4775 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4776 cur_params.dot11MeshMaxRetries) ||
4777 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4778 cur_params.dot11MeshTTL) ||
4779 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4780 cur_params.element_ttl) ||
4781 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4782 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4783 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4784 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4785 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4786 cur_params.dot11MeshHWMPmaxPREQretries) ||
4787 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4788 cur_params.path_refresh_time) ||
4789 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4790 cur_params.min_discovery_timeout) ||
4791 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4792 cur_params.dot11MeshHWMPactivePathTimeout) ||
4793 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4794 cur_params.dot11MeshHWMPpreqMinInterval) ||
4795 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4796 cur_params.dot11MeshHWMPperrMinInterval) ||
4797 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4798 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4799 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4800 cur_params.dot11MeshHWMPRootMode) ||
4801 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4802 cur_params.dot11MeshHWMPRannInterval) ||
4803 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4804 cur_params.dot11MeshGateAnnouncementProtocol) ||
4805 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4806 cur_params.dot11MeshForwarding) ||
4807 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4808 cur_params.rssi_threshold) ||
4809 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4810 cur_params.ht_opmode) ||
4811 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4812 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4813 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4814 cur_params.dot11MeshHWMProotInterval) ||
4815 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4816 cur_params.dot11MeshHWMPconfirmationInterval) ||
4817 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4818 cur_params.power_mode) ||
4819 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4820 cur_params.dot11MeshAwakeWindowDuration) ||
4821 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4822 cur_params.plink_timeout))
9360ffd1 4823 goto nla_put_failure;
93da9cc1 4824 nla_nest_end(msg, pinfoattr);
4825 genlmsg_end(msg, hdr);
4c476991 4826 return genlmsg_reply(msg, info);
93da9cc1 4827
3b85875a 4828 nla_put_failure:
93da9cc1 4829 genlmsg_cancel(msg, hdr);
efe1cf0c 4830 out:
d080e275 4831 nlmsg_free(msg);
4c476991 4832 return -ENOBUFS;
93da9cc1 4833}
4834
b54452b0 4835static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4836 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4837 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4838 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4839 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4840 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4841 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4842 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4843 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4844 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4845 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4846 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4847 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4848 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4849 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4850 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4851 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4852 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4853 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4854 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4855 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4856 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4857 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4858 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4859 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4860 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4861 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4862 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4863 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4864};
4865
c80d545d
JC		 4866static const struct nla_policy
4867 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4868 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4869 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4870 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4871 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4872 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4873 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4874 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4875 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4876 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4877};
4878
24bdd9f4 4879static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4880 struct mesh_config *cfg,
4881 u32 *mask_out)
93da9cc1 4882{
93da9cc1 4883 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4884 u32 mask = 0;
93da9cc1 4885
ea54fba2
MP		 4886#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4887do { \
4888 if (tb[attr]) { \
4889 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4890 return -EINVAL; \
4891 cfg->param = fn(tb[attr]); \
4892 mask |= (1 << (attr - 1)); \
4893 } \
4894} while (0)
bd90fdcc
JB		 4895
4896
24bdd9f4 4897 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4898 return -EINVAL;
4899 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4900 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4901 nl80211_meshconf_params_policy))
93da9cc1 4902 return -EINVAL;
4903
93da9cc1 4904 /* This makes sure that there aren't more than 32 mesh config
4905 * parameters (otherwise our bitfield scheme would not work.) */
4906 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4907
4908 /* Fill in the params struct */
ea54fba2 4909 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4910 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4911 nla_get_u16);
ea54fba2 4912 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4913 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4914 nla_get_u16);
ea54fba2 4915 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4916 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4917 nla_get_u16);
ea54fba2 4918 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4919 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4920 nla_get_u16);
ea54fba2 4921 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4922 mask, NL80211_MESHCONF_MAX_RETRIES,
4923 nla_get_u8);
ea54fba2 4924 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4925 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4927 mask, NL80211_MESHCONF_ELEMENT_TTL,
4928 nla_get_u8);
ea54fba2 4929 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4930 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4931 nla_get_u8);
ea54fba2
MP		 4932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4933 1, 255, mask,
a4f606ea
CYY		 4934 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4935 nla_get_u32);
ea54fba2 4936 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4937 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4938 nla_get_u8);
ea54fba2 4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4940 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4941 nla_get_u32);
ea54fba2 4942 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4943 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4944 nla_get_u16);
ea54fba2
MP		 4945 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4946 1, 65535, mask,
a4f606ea
CYY		 4947 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4948 nla_get_u32);
93da9cc1 4949 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4950 1, 65535, mask,
4951 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4952 nla_get_u16);
dca7e943 4953 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4954 1, 65535, mask,
4955 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4956 nla_get_u16);
93da9cc1 4957 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4958 dot11MeshHWMPnetDiameterTraversalTime,
4959 1, 65535, mask,
a4f606ea
CYY		 4960 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4961 nla_get_u16);
ea54fba2
MP		 4962 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4963 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4964 nla_get_u8);
4965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4966 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4967 nla_get_u16);
63c5723b 4968 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4969 dot11MeshGateAnnouncementProtocol, 0, 1,
4970 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4971 nla_get_u8);
ea54fba2 4972 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4973 mask, NL80211_MESHCONF_FORWARDING,
4974 nla_get_u8);
83374fe9 4975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4976 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4977 nla_get_s32);
ea54fba2 4978 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4979 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4980 nla_get_u16);
4981 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4982 1, 65535, mask,
ac1073a6
CYY		 4983 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4984 nla_get_u32);
ea54fba2 4985 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4986 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4987 nla_get_u16);
4988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4989 dot11MeshHWMPconfirmationInterval,
4990 1, 65535, mask,
728b19e5 4991 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4992 nla_get_u16);
3b1c5a53
MP		 4993 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4994 NL80211_MESH_POWER_ACTIVE,
4995 NL80211_MESH_POWER_MAX,
4996 mask, NL80211_MESHCONF_POWER_MODE,
4997 nla_get_u32);
4998 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4999 0, 65535, mask,
5000 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5002 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5003 nla_get_u32);
bd90fdcc
JB		 5004 if (mask_out)
5005 *mask_out = mask;
c80d545d 5006
bd90fdcc
JB		 5007 return 0;
5008
5009#undef FILL_IN_MESH_PARAM_IF_SET
5010}
5011
c80d545d
JC		 5012static int nl80211_parse_mesh_setup(struct genl_info *info,
5013 struct mesh_setup *setup)
5014{
bb2798d4 5015 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5016 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5017
5018 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5019 return -EINVAL;
5020 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5021 info->attrs[NL80211_ATTR_MESH_SETUP],
5022 nl80211_mesh_setup_params_policy))
5023 return -EINVAL;
5024
d299a1f2
JC		 5025 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5026 setup->sync_method =
5027 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5028 IEEE80211_SYNC_METHOD_VENDOR :
5029 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5030
c80d545d
JC		 5031 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5032 setup->path_sel_proto =
5033 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5034 IEEE80211_PATH_PROTOCOL_VENDOR :
5035 IEEE80211_PATH_PROTOCOL_HWMP;
5036
5037 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5038 setup->path_metric =
5039 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5040 IEEE80211_PATH_METRIC_VENDOR :
5041 IEEE80211_PATH_METRIC_AIRTIME;
5042
581a8b0f
JC		 5043
5044 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5045 struct nlattr *ieattr =
581a8b0f 5046 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5047 if (!is_valid_ie_attr(ieattr))
5048 return -EINVAL;
581a8b0f
JC		 5049 setup->ie = nla_data(ieattr);
5050 setup->ie_len = nla_len(ieattr);
c80d545d 5051 }
bb2798d4
TP		 5052 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5053 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5054 return -EINVAL;
5055 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5056 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5057 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5058 if (setup->is_secure)
5059 setup->user_mpm = true;
c80d545d 5060
6e16d90b
CT		 5061 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5062 if (!setup->user_mpm)
5063 return -EINVAL;
5064 setup->auth_id =
5065 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5066 }
5067
c80d545d
JC		 5068 return 0;
5069}
5070
24bdd9f4 5071static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5072 struct genl_info *info)
bd90fdcc
JB		 5073{
5074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5075 struct net_device *dev = info->user_ptr[1];
29cbe68c 5076 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5077 struct mesh_config cfg;
5078 u32 mask;
5079 int err;
5080
29cbe68c
JB		 5081 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5082 return -EOPNOTSUPP;
5083
24bdd9f4 5084 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5085 return -EOPNOTSUPP;
5086
24bdd9f4 5087 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5088 if (err)
5089 return err;
5090
29cbe68c
JB		 5091 wdev_lock(wdev);
5092 if (!wdev->mesh_id_len)
5093 err = -ENOLINK;
5094
5095 if (!err)
e35e4d28 5096 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5097
5098 wdev_unlock(wdev);
5099
5100 return err;
93da9cc1 5101}
5102
f130347c
LR		 5103static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5104{
458f4f9e 5105 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5106 struct sk_buff *msg;
5107 void *hdr = NULL;
5108 struct nlattr *nl_reg_rules;
5109 unsigned int i;
f130347c
LR		 5110
5111 if (!cfg80211_regdomain)
5fe231e8 5112 return -EINVAL;
f130347c 5113
fd2120ca 5114 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5115 if (!msg)
5116 return -ENOBUFS;
f130347c 5117
15e47304 5118 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5119 NL80211_CMD_GET_REG);
5120 if (!hdr)
efe1cf0c 5121 goto put_failure;
f130347c 5122
57b5ce07
LR		 5123 if (reg_last_request_cell_base() &&
5124 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5125 NL80211_USER_REG_HINT_CELL_BASE))
5126 goto nla_put_failure;
5127
458f4f9e
JB		 5128 rcu_read_lock();
5129 regdom = rcu_dereference(cfg80211_regdomain);
5130
5131 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5132 (regdom->dfs_region &&
5133 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5134 goto nla_put_failure_rcu;
5135
f130347c
LR		 5136 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5137 if (!nl_reg_rules)
458f4f9e 5138 goto nla_put_failure_rcu;
f130347c 5139
458f4f9e 5140 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5141 struct nlattr *nl_reg_rule;
5142 const struct ieee80211_reg_rule *reg_rule;
5143 const struct ieee80211_freq_range *freq_range;
5144 const struct ieee80211_power_rule *power_rule;
97524820 5145 unsigned int max_bandwidth_khz;
f130347c 5146
458f4f9e 5147 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5148 freq_range = &reg_rule->freq_range;
5149 power_rule = &reg_rule->power_rule;
5150
5151 nl_reg_rule = nla_nest_start(msg, i);
5152 if (!nl_reg_rule)
458f4f9e 5153 goto nla_put_failure_rcu;
f130347c 5154
97524820
JD		 5155 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5156 if (!max_bandwidth_khz)
5157 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5158 reg_rule);
5159
9360ffd1
DM		 5160 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5161 reg_rule->flags) ||
5162 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5163 freq_range->start_freq_khz) ||
5164 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5165 freq_range->end_freq_khz) ||
5166 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5167 max_bandwidth_khz) ||
9360ffd1
DM		 5168 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5169 power_rule->max_antenna_gain) ||
5170 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5171 power_rule->max_eirp) ||
5172 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5173 reg_rule->dfs_cac_ms))
458f4f9e 5174 goto nla_put_failure_rcu;
f130347c
LR		 5175
5176 nla_nest_end(msg, nl_reg_rule);
5177 }
458f4f9e 5178 rcu_read_unlock();
f130347c
LR		 5179
5180 nla_nest_end(msg, nl_reg_rules);
5181
5182 genlmsg_end(msg, hdr);
5fe231e8 5183 return genlmsg_reply(msg, info);
f130347c 5184
458f4f9e
JB		 5185nla_put_failure_rcu:
5186 rcu_read_unlock();
f130347c
LR		 5187nla_put_failure:
5188 genlmsg_cancel(msg, hdr);
efe1cf0c 5189put_failure:
d080e275 5190 nlmsg_free(msg);
5fe231e8 5191 return -EMSGSIZE;
f130347c
LR		 5192}
5193
b2e1b302
LR		 5194static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5195{
5196 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5197 struct nlattr *nl_reg_rule;
5198 char *alpha2 = NULL;
5199 int rem_reg_rules = 0, r = 0;
5200 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5201 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5202 struct ieee80211_regdomain *rd = NULL;
5203
5204 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5205 return -EINVAL;
5206
5207 if (!info->attrs[NL80211_ATTR_REG_RULES])
5208 return -EINVAL;
5209
5210 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5211
8b60b078
LR		 5212 if (info->attrs[NL80211_ATTR_DFS_REGION])
5213 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5214
b2e1b302 5215 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5216 rem_reg_rules) {
b2e1b302
LR		 5217 num_rules++;
5218 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5219 return -EINVAL;
b2e1b302
LR		 5220 }
5221
e438768f
LR		 5222 if (!reg_is_valid_request(alpha2))
5223 return -EINVAL;
5224
b2e1b302 5225 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5226 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5227
5228 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5229 if (!rd)
5230 return -ENOMEM;
b2e1b302
LR		 5231
5232 rd->n_reg_rules = num_rules;
5233 rd->alpha2[0] = alpha2[0];
5234 rd->alpha2[1] = alpha2[1];
5235
8b60b078
LR		 5236 /*
5237 * Disable DFS master mode if the DFS region was
5238 * not supported or known on this kernel.
5239 */
5240 if (reg_supported_dfs_region(dfs_region))
5241 rd->dfs_region = dfs_region;
5242
b2e1b302 5243 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5244 rem_reg_rules) {
ae811e21
JB		 5245 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5246 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5247 reg_rule_policy);
5248 if (r)
5249 goto bad_reg;
b2e1b302
LR		 5250 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5251 if (r)
5252 goto bad_reg;
5253
5254 rule_idx++;
5255
d0e18f83
LR		 5256 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5257 r = -EINVAL;
b2e1b302 5258 goto bad_reg;
d0e18f83 5259 }
b2e1b302
LR		 5260 }
5261
b2e1b302 5262 r = set_regdom(rd);
6913b49a 5263 /* set_regdom took ownership */
1a919318 5264 rd = NULL;
b2e1b302 5265
d2372b31 5266 bad_reg:
b2e1b302 5267 kfree(rd);
d0e18f83 5268 return r;
b2e1b302
LR		 5269}
5270
83f5e2cf
JB		 5271static int validate_scan_freqs(struct nlattr *freqs)
5272{
5273 struct nlattr *attr1, *attr2;
5274 int n_channels = 0, tmp1, tmp2;
5275
5276 nla_for_each_nested(attr1, freqs, tmp1) {
5277 n_channels++;
5278 /*
5279 * Some hardware has a limited channel list for
5280 * scanning, and it is pretty much nonsensical
5281 * to scan for a channel twice, so disallow that
5282 * and don't require drivers to check that the
5283 * channel list they get isn't longer than what
5284 * they can scan, as long as they can scan all
5285 * the channels they registered at once.
5286 */
5287 nla_for_each_nested(attr2, freqs, tmp2)
5288 if (attr1 != attr2 &&
5289 nla_get_u32(attr1) == nla_get_u32(attr2))
5290 return 0;
5291 }
5292
5293 return n_channels;
5294}
5295
2a519311
JB		 5296static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5297{
4c476991 5298 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5299 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5300 struct cfg80211_scan_request *request;
2a519311
JB		 5301 struct nlattr *attr;
5302 struct wiphy *wiphy;
83f5e2cf 5303 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5304 size_t ie_len;
2a519311 5305
f4a11bb0
JB		 5306 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5307 return -EINVAL;
5308
79c97e97 5309 wiphy = &rdev->wiphy;
2a519311 5310
4c476991
JB		 5311 if (!rdev->ops->scan)
5312 return -EOPNOTSUPP;
2a519311 5313
f9d15d16 5314 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5315 err = -EBUSY;
5316 goto unlock;
5317 }
2a519311
JB		 5318
5319 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5320 n_channels = validate_scan_freqs(
5321 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5322 if (!n_channels) {
5323 err = -EINVAL;
5324 goto unlock;
5325 }
2a519311 5326 } else {
bdfbec2d 5327 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5328 }
5329
5330 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5331 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5332 n_ssids++;
5333
f9f47529
JB		 5334 if (n_ssids > wiphy->max_scan_ssids) {
5335 err = -EINVAL;
5336 goto unlock;
5337 }
2a519311 5338
70692ad2
JM		 5339 if (info->attrs[NL80211_ATTR_IE])
5340 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5341 else
5342 ie_len = 0;
5343
f9f47529
JB		 5344 if (ie_len > wiphy->max_scan_ie_len) {
5345 err = -EINVAL;
5346 goto unlock;
5347 }
18a83659 5348
2a519311 5349 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5350 + sizeof(*request->ssids) * n_ssids
5351 + sizeof(*request->channels) * n_channels
70692ad2 5352 + ie_len, GFP_KERNEL);
f9f47529
JB		 5353 if (!request) {
5354 err = -ENOMEM;
5355 goto unlock;
5356 }
2a519311 5357
2a519311 5358 if (n_ssids)
5ba63533 5359 request->ssids = (void *)&request->channels[n_channels];
2a519311 5360 request->n_ssids = n_ssids;
70692ad2
JM		 5361 if (ie_len) {
5362 if (request->ssids)
5363 request->ie = (void *)(request->ssids + n_ssids);
5364 else
5365 request->ie = (void *)(request->channels + n_channels);
5366 }
2a519311 5367
584991dc 5368 i = 0;
2a519311
JB		 5369 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5370 /* user specified, bail out if channel not found */
2a519311 5371 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5372 struct ieee80211_channel *chan;
5373
5374 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5375
5376 if (!chan) {
2a519311
JB		 5377 err = -EINVAL;
5378 goto out_free;
5379 }
584991dc
JB		 5380
5381 /* ignore disabled channels */
5382 if (chan->flags & IEEE80211_CHAN_DISABLED)
5383 continue;
5384
5385 request->channels[i] = chan;
2a519311
JB		 5386 i++;
5387 }
5388 } else {
34850ab2
JB		 5389 enum ieee80211_band band;
5390
2a519311 5391 /* all channels */
2a519311
JB		 5392 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5393 int j;
5394 if (!wiphy->bands[band])
5395 continue;
5396 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5397 struct ieee80211_channel *chan;
5398
5399 chan = &wiphy->bands[band]->channels[j];
5400
5401 if (chan->flags & IEEE80211_CHAN_DISABLED)
5402 continue;
5403
5404 request->channels[i] = chan;
2a519311
JB		 5405 i++;
5406 }
5407 }
5408 }
5409
584991dc
JB		 5410 if (!i) {
5411 err = -EINVAL;
5412 goto out_free;
5413 }
5414
5415 request->n_channels = i;
5416
2a519311
JB		 5417 i = 0;
5418 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5419 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5420 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5421 err = -EINVAL;
5422 goto out_free;
5423 }
57a27e1d 5424 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5425 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5426 i++;
5427 }
5428 }
5429
70692ad2
JM		 5430 if (info->attrs[NL80211_ATTR_IE]) {
5431 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5432 memcpy((void *)request->ie,
5433 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5434 request->ie_len);
5435 }
5436
34850ab2 5437 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5438 if (wiphy->bands[i])
5439 request->rates[i] =
5440 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5441
5442 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5443 nla_for_each_nested(attr,
5444 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5445 tmp) {
5446 enum ieee80211_band band = nla_type(attr);
5447
84404623 5448 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5449 err = -EINVAL;
5450 goto out_free;
5451 }
1b09cd82
FF		 5452
5453 if (!wiphy->bands[band])
5454 continue;
5455
34850ab2
JB		 5456 err = ieee80211_get_ratemask(wiphy->bands[band],
5457 nla_data(attr),
5458 nla_len(attr),
5459 &request->rates[band]);
5460 if (err)
5461 goto out_free;
5462 }
5463 }
5464
46856bbf 5465 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5466 request->flags = nla_get_u32(
5467 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5468 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5469 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5470 err = -EOPNOTSUPP;
5471 goto out_free;
5472 }
5473 }
ed473771 5474
e9f935e3
RM		 5475 request->no_cck =
5476 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5477
fd014284 5478 request->wdev = wdev;
79c97e97 5479 request->wiphy = &rdev->wiphy;
15d6030b 5480 request->scan_start = jiffies;
2a519311 5481
79c97e97 5482 rdev->scan_req = request;
e35e4d28 5483 err = rdev_scan(rdev, request);
2a519311 5484
463d0183 5485 if (!err) {
fd014284
JB		 5486 nl80211_send_scan_start(rdev, wdev);
5487 if (wdev->netdev)
5488 dev_hold(wdev->netdev);
4c476991 5489 } else {
2a519311 5490 out_free:
79c97e97 5491 rdev->scan_req = NULL;
2a519311
JB		 5492 kfree(request);
5493 }
3b85875a 5494
f9f47529 5495 unlock:
2a519311
JB		 5496 return err;
5497}
5498
807f8a8c
LC		 5499static int nl80211_start_sched_scan(struct sk_buff *skb,
5500 struct genl_info *info)
5501{
5502 struct cfg80211_sched_scan_request *request;
5503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5504 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5505 struct nlattr *attr;
5506 struct wiphy *wiphy;
a1f1c21c 5507 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5508 u32 interval;
807f8a8c
LC		 5509 enum ieee80211_band band;
5510 size_t ie_len;
a1f1c21c 5511 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5512 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5513
5514 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5515 !rdev->ops->sched_scan_start)
5516 return -EOPNOTSUPP;
5517
5518 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5519 return -EINVAL;
5520
bbe6ad6d
LC		 5521 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5522 return -EINVAL;
5523
5524 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5525 if (interval == 0)
5526 return -EINVAL;
5527
807f8a8c
LC		 5528 wiphy = &rdev->wiphy;
5529
5530 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5531 n_channels = validate_scan_freqs(
5532 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5533 if (!n_channels)
5534 return -EINVAL;
5535 } else {
bdfbec2d 5536 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5537 }
5538
5539 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5540 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5541 tmp)
5542 n_ssids++;
5543
93b6aa69 5544 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5545 return -EINVAL;
5546
ea73cbce
JB		 5547 /*
5548 * First, count the number of 'real' matchsets. Due to an issue with
5549 * the old implementation, matchsets containing only the RSSI attribute
5550 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5551 * RSSI for all matchsets, rather than their own matchset for reporting
5552 * all APs with a strong RSSI. This is needed to be compatible with
5553 * older userspace that treated a matchset with only the RSSI as the
5554 * global RSSI for all other matchsets - if there are other matchsets.
5555 */
5556 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5557 nla_for_each_nested(attr,
5558 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5559 tmp) {
5560 struct nlattr *rssi;
5561
5562 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5563 nla_data(attr), nla_len(attr),
5564 nl80211_match_policy);
5565 if (err)
5566 return err;
5567 /* add other standalone attributes here */
5568 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5569 n_match_sets++;
5570 continue;
5571 }
5572 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5573 if (rssi)
5574 default_match_rssi = nla_get_s32(rssi);
5575 }
5576 }
5577
5578 /* However, if there's no other matchset, add the RSSI one */
5579 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5580 n_match_sets = 1;
a1f1c21c
LC		 5581
5582 if (n_match_sets > wiphy->max_match_sets)
5583 return -EINVAL;
5584
807f8a8c
LC		 5585 if (info->attrs[NL80211_ATTR_IE])
5586 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5587 else
5588 ie_len = 0;
5589
5a865bad 5590 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5591 return -EINVAL;
5592
c10841ca
LC		 5593 if (rdev->sched_scan_req) {
5594 err = -EINPROGRESS;
5595 goto out;
5596 }
5597
807f8a8c 5598 request = kzalloc(sizeof(*request)
a2cd43c5 5599 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5600 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5601 + sizeof(*request->channels) * n_channels
807f8a8c 5602 + ie_len, GFP_KERNEL);
c10841ca
LC		 5603 if (!request) {
5604 err = -ENOMEM;
5605 goto out;
5606 }
807f8a8c
LC		 5607
5608 if (n_ssids)
5609 request->ssids = (void *)&request->channels[n_channels];
5610 request->n_ssids = n_ssids;
5611 if (ie_len) {
5612 if (request->ssids)
5613 request->ie = (void *)(request->ssids + n_ssids);
5614 else
5615 request->ie = (void *)(request->channels + n_channels);
5616 }
5617
a1f1c21c
LC		 5618 if (n_match_sets) {
5619 if (request->ie)
5620 request->match_sets = (void *)(request->ie + ie_len);
5621 else if (request->ssids)
5622 request->match_sets =
5623 (void *)(request->ssids + n_ssids);
5624 else
5625 request->match_sets =
5626 (void *)(request->channels + n_channels);
5627 }
5628 request->n_match_sets = n_match_sets;
5629
807f8a8c
LC		 5630 i = 0;
5631 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5632 /* user specified, bail out if channel not found */
5633 nla_for_each_nested(attr,
5634 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5635 tmp) {
5636 struct ieee80211_channel *chan;
5637
5638 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5639
5640 if (!chan) {
5641 err = -EINVAL;
5642 goto out_free;
5643 }
5644
5645 /* ignore disabled channels */
5646 if (chan->flags & IEEE80211_CHAN_DISABLED)
5647 continue;
5648
5649 request->channels[i] = chan;
5650 i++;
5651 }
5652 } else {
5653 /* all channels */
5654 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5655 int j;
5656 if (!wiphy->bands[band])
5657 continue;
5658 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5659 struct ieee80211_channel *chan;
5660
5661 chan = &wiphy->bands[band]->channels[j];
5662
5663 if (chan->flags & IEEE80211_CHAN_DISABLED)
5664 continue;
5665
5666 request->channels[i] = chan;
5667 i++;
5668 }
5669 }
5670 }
5671
5672 if (!i) {
5673 err = -EINVAL;
5674 goto out_free;
5675 }
5676
5677 request->n_channels = i;
5678
5679 i = 0;
5680 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5681 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5682 tmp) {
57a27e1d 5683 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5684 err = -EINVAL;
5685 goto out_free;
5686 }
57a27e1d 5687 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5688 memcpy(request->ssids[i].ssid, nla_data(attr),
5689 nla_len(attr));
807f8a8c
LC		 5690 i++;
5691 }
5692 }
5693
a1f1c21c
LC		 5694 i = 0;
5695 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5696 nla_for_each_nested(attr,
5697 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5698 tmp) {
88e920b4 5699 struct nlattr *ssid, *rssi;
a1f1c21c 5700
ae811e21
JB		 5701 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5702 nla_data(attr), nla_len(attr),
5703 nl80211_match_policy);
5704 if (err)
5705 goto out_free;
4a4ab0d7 5706 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5707 if (ssid) {
ea73cbce
JB		 5708 if (WARN_ON(i >= n_match_sets)) {
5709 /* this indicates a programming error,
5710 * the loop above should have verified
5711 * things properly
5712 */
5713 err = -EINVAL;
5714 goto out_free;
5715 }
5716
a1f1c21c
LC		 5717 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5718 err = -EINVAL;
5719 goto out_free;
5720 }
5721 memcpy(request->match_sets[i].ssid.ssid,
5722 nla_data(ssid), nla_len(ssid));
5723 request->match_sets[i].ssid.ssid_len =
5724 nla_len(ssid);
ea73cbce
JB		 5725 /* special attribute - old implemenation w/a */
5726 request->match_sets[i].rssi_thold =
5727 default_match_rssi;
5728 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5729 if (rssi)
5730 request->match_sets[i].rssi_thold =
5731 nla_get_s32(rssi);
a1f1c21c
LC		 5732 }
5733 i++;
5734 }
ea73cbce
JB		 5735
5736 /* there was no other matchset, so the RSSI one is alone */
5737 if (i == 0)
5738 request->match_sets[0].rssi_thold = default_match_rssi;
5739
5740 request->min_rssi_thold = INT_MAX;
5741 for (i = 0; i < n_match_sets; i++)
5742 request->min_rssi_thold =
5743 min(request->match_sets[i].rssi_thold,
5744 request->min_rssi_thold);
5745 } else {
5746 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5747 }
5748
9900e484
JB		 5749 if (ie_len) {
5750 request->ie_len = ie_len;
807f8a8c
LC		 5751 memcpy((void *)request->ie,
5752 nla_data(info->attrs[NL80211_ATTR_IE]),
5753 request->ie_len);
5754 }
5755
46856bbf 5756 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5757 request->flags = nla_get_u32(
5758 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5759 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5760 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5761 err = -EOPNOTSUPP;
5762 goto out_free;
5763 }
5764 }
ed473771 5765
807f8a8c
LC		 5766 request->dev = dev;
5767 request->wiphy = &rdev->wiphy;
bbe6ad6d 5768 request->interval = interval;
15d6030b 5769 request->scan_start = jiffies;
807f8a8c 5770
e35e4d28 5771 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5772 if (!err) {
5773 rdev->sched_scan_req = request;
5774 nl80211_send_sched_scan(rdev, dev,
5775 NL80211_CMD_START_SCHED_SCAN);
5776 goto out;
5777 }
5778
5779out_free:
5780 kfree(request);
5781out:
5782 return err;
5783}
5784
5785static int nl80211_stop_sched_scan(struct sk_buff *skb,
5786 struct genl_info *info)
5787{
5788 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5789
5790 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5791 !rdev->ops->sched_scan_stop)
5792 return -EOPNOTSUPP;
5793
5fe231e8 5794 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5795}
5796
04f39047
SW		 5797static int nl80211_start_radar_detection(struct sk_buff *skb,
5798 struct genl_info *info)
5799{
5800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5801 struct net_device *dev = info->user_ptr[1];
5802 struct wireless_dev *wdev = dev->ieee80211_ptr;
5803 struct cfg80211_chan_def chandef;
55f7435c 5804 enum nl80211_dfs_regions dfs_region;
31559f35 5805 unsigned int cac_time_ms;
04f39047
SW		 5806 int err;
5807
55f7435c
LR		 5808 dfs_region = reg_get_dfs_region(wdev->wiphy);
5809 if (dfs_region == NL80211_DFS_UNSET)
5810 return -EINVAL;
5811
04f39047
SW		 5812 err = nl80211_parse_chandef(rdev, info, &chandef);
5813 if (err)
5814 return err;
5815
ff311bc1
SW		 5816 if (netif_carrier_ok(dev))
5817 return -EBUSY;
5818
04f39047
SW		 5819 if (wdev->cac_started)
5820 return -EBUSY;
5821
2beb6dab
LC		 5822 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
5823 NL80211_IFTYPE_UNSPECIFIED);
04f39047
SW		 5824 if (err < 0)
5825 return err;
5826
5827 if (err == 0)
5828 return -EINVAL;
5829
fe7c3a1f 5830 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5831 return -EINVAL;
5832
5833 if (!rdev->ops->start_radar_detection)
5834 return -EOPNOTSUPP;
5835
31559f35
JD		 5836 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5837 if (WARN_ON(!cac_time_ms))
5838 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5839
5840 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5841 cac_time_ms);
04f39047 5842 if (!err) {
9e0e2961 5843 wdev->chandef = chandef;
04f39047
SW		 5844 wdev->cac_started = true;
5845 wdev->cac_start_time = jiffies;
31559f35 5846 wdev->cac_time_ms = cac_time_ms;
04f39047 5847 }
04f39047
SW		 5848 return err;
5849}
5850
16ef1fe2
SW		 5851static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5852{
5853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5854 struct net_device *dev = info->user_ptr[1];
5855 struct wireless_dev *wdev = dev->ieee80211_ptr;
5856 struct cfg80211_csa_settings params;
5857 /* csa_attrs is defined static to avoid waste of stack size - this
5858 * function is called under RTNL lock, so this should not be a problem.
5859 */
5860 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5861 u8 radar_detect_width = 0;
5862 int err;
ee4bc9e7 5863 bool need_new_beacon = false;
16ef1fe2
SW		 5864
5865 if (!rdev->ops->channel_switch ||
5866 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5867 return -EOPNOTSUPP;
5868
ee4bc9e7
SW		 5869 switch (dev->ieee80211_ptr->iftype) {
5870 case NL80211_IFTYPE_AP:
5871 case NL80211_IFTYPE_P2P_GO:
5872 need_new_beacon = true;
5873
5874 /* useless if AP is not running */
5875 if (!wdev->beacon_interval)
1ff79dfa 5876 return -ENOTCONN;
ee4bc9e7
SW		 5877 break;
5878 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5879 if (!wdev->ssid_len)
5880 return -ENOTCONN;
5881 break;
c6da674a 5882 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5883 if (!wdev->mesh_id_len)
5884 return -ENOTCONN;
ee4bc9e7
SW		 5885 break;
5886 default:
16ef1fe2 5887 return -EOPNOTSUPP;
ee4bc9e7 5888 }
16ef1fe2
SW		 5889
5890 memset(&params, 0, sizeof(params));
5891
5892 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5893 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5894 return -EINVAL;
5895
5896 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5897 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5898 return -EINVAL;
5899
5900 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5901
ee4bc9e7
SW		 5902 if (!need_new_beacon)
5903 goto skip_beacons;
5904
16ef1fe2
SW		 5905 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5906 if (err)
5907 return err;
5908
5909 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5910 info->attrs[NL80211_ATTR_CSA_IES],
5911 nl80211_policy);
5912 if (err)
5913 return err;
5914
5915 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5916 if (err)
5917 return err;
5918
5919 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5920 return -EINVAL;
5921
5922 params.counter_offset_beacon =
5923 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5924 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5925 return -EINVAL;
5926
5927 /* sanity check - counters should be the same */
5928 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5929 params.count)
5930 return -EINVAL;
5931
5932 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5933 params.counter_offset_presp =
5934 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5935 if (params.counter_offset_presp >=
5936 params.beacon_csa.probe_resp_len)
5937 return -EINVAL;
5938
5939 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5940 params.count)
5941 return -EINVAL;
5942 }
5943
ee4bc9e7 5944skip_beacons:
16ef1fe2
SW		 5945 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5946 if (err)
5947 return err;
5948
174e0cd2
IP		 5949 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
5950 wdev->iftype))
16ef1fe2
SW		 5951 return -EINVAL;
5952
2beb6dab
LC		 5953 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5954 &params.chandef,
5955 wdev->iftype);
5956 if (err < 0)
5957 return err;
5958
5959 if (err > 0) {
5960 radar_detect_width = BIT(params.chandef.width);
5961 params.radar_required = true;
16ef1fe2
SW		 5962 }
5963
73de86a3
LC		 5964 /* TODO: I left this here for now. With channel switch, the
5965 * verification is a bit more complicated, because we only do
5966 * it later when the channel switch really happens.
5967 */
16ef1fe2
SW		 5968 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5969 params.chandef.chan,
5970 CHAN_MODE_SHARED,
5971 radar_detect_width);
5972 if (err)
5973 return err;
5974
5975 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5976 params.block_tx = true;
5977
c56589ed
SW		 5978 wdev_lock(wdev);
5979 err = rdev_channel_switch(rdev, dev, &params);
5980 wdev_unlock(wdev);
5981
5982 return err;
16ef1fe2
SW		 5983}
5984
9720bb3a
JB		 5985static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5986 u32 seq, int flags,
2a519311 5987 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5988 struct wireless_dev *wdev,
5989 struct cfg80211_internal_bss *intbss)
2a519311 5990{
48ab905d 5991 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5992 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5993 void *hdr;
5994 struct nlattr *bss;
8cef2c9d 5995 bool tsf = false;
48ab905d
JB		 5996
5997 ASSERT_WDEV_LOCK(wdev);
2a519311 5998
15e47304 5999 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6000 NL80211_CMD_NEW_SCAN_RESULTS);
6001 if (!hdr)
6002 return -1;
6003
9720bb3a
JB		 6004 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6005
97990a06
JB		 6006 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6007 goto nla_put_failure;
6008 if (wdev->netdev &&
9360ffd1
DM		 6009 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6010 goto nla_put_failure;
97990a06
JB		 6011 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6012 goto nla_put_failure;
2a519311
JB		 6013
6014 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6015 if (!bss)
6016 goto nla_put_failure;
9360ffd1 6017 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6018 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6019 goto nla_put_failure;
9caf0364
JB		 6020
6021 rcu_read_lock();
6022 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6023 if (ies) {
6024 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6025 goto fail_unlock_rcu;
6026 tsf = true;
6027 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6028 ies->len, ies->data))
6029 goto fail_unlock_rcu;
9caf0364
JB		 6030 }
6031 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6032 if (ies) {
6033 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6034 goto fail_unlock_rcu;
6035 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6036 ies->len, ies->data))
6037 goto fail_unlock_rcu;
9caf0364
JB		 6038 }
6039 rcu_read_unlock();
6040
9360ffd1
DM		 6041 if (res->beacon_interval &&
6042 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6043 goto nla_put_failure;
6044 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6045 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6046 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6047 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6048 jiffies_to_msecs(jiffies - intbss->ts)))
6049 goto nla_put_failure;
2a519311 6050
77965c97 6051 switch (rdev->wiphy.signal_type) {
2a519311 6052 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6053 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6054 goto nla_put_failure;
2a519311
JB		 6055 break;
6056 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6057 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6058 goto nla_put_failure;
2a519311
JB		 6059 break;
6060 default:
6061 break;
6062 }
6063
48ab905d 6064 switch (wdev->iftype) {
074ac8df 6065 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6066 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6067 if (intbss == wdev->current_bss &&
6068 nla_put_u32(msg, NL80211_BSS_STATUS,
6069 NL80211_BSS_STATUS_ASSOCIATED))
6070 goto nla_put_failure;
48ab905d
JB		 6071 break;
6072 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6073 if (intbss == wdev->current_bss &&
6074 nla_put_u32(msg, NL80211_BSS_STATUS,
6075 NL80211_BSS_STATUS_IBSS_JOINED))
6076 goto nla_put_failure;
48ab905d
JB		 6077 break;
6078 default:
6079 break;
6080 }
6081
2a519311
JB		 6082 nla_nest_end(msg, bss);
6083
6084 return genlmsg_end(msg, hdr);
6085
8cef2c9d
JB		 6086 fail_unlock_rcu:
6087 rcu_read_unlock();
2a519311
JB		 6088 nla_put_failure:
6089 genlmsg_cancel(msg, hdr);
6090 return -EMSGSIZE;
6091}
6092
97990a06 6093static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6094{
48ab905d 6095 struct cfg80211_registered_device *rdev;
2a519311 6096 struct cfg80211_internal_bss *scan;
48ab905d 6097 struct wireless_dev *wdev;
97990a06 6098 int start = cb->args[2], idx = 0;
2a519311
JB		 6099 int err;
6100
97990a06 6101 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6102 if (err)
6103 return err;
2a519311 6104
48ab905d
JB		 6105 wdev_lock(wdev);
6106 spin_lock_bh(&rdev->bss_lock);
6107 cfg80211_bss_expire(rdev);
6108
9720bb3a
JB		 6109 cb->seq = rdev->bss_generation;
6110
48ab905d 6111 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6112 if (++idx <= start)
6113 continue;
9720bb3a 6114 if (nl80211_send_bss(skb, cb,
2a519311 6115 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6116 rdev, wdev, scan) < 0) {
2a519311 6117 idx--;
67748893 6118 break;
2a519311
JB		 6119 }
6120 }
6121
48ab905d
JB		 6122 spin_unlock_bh(&rdev->bss_lock);
6123 wdev_unlock(wdev);
2a519311 6124
97990a06
JB		 6125 cb->args[2] = idx;
6126 nl80211_finish_wdev_dump(rdev);
2a519311 6127
67748893 6128 return skb->len;
2a519311
JB		 6129}
6130
15e47304 6131static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6132 int flags, struct net_device *dev,
6133 struct survey_info *survey)
6134{
6135 void *hdr;
6136 struct nlattr *infoattr;
6137
15e47304 6138 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6139 NL80211_CMD_NEW_SURVEY_RESULTS);
6140 if (!hdr)
6141 return -ENOMEM;
6142
9360ffd1
DM		 6143 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6144 goto nla_put_failure;
61fa713c
HS		 6145
6146 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6147 if (!infoattr)
6148 goto nla_put_failure;
6149
9360ffd1
DM		 6150 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6151 survey->channel->center_freq))
6152 goto nla_put_failure;
6153
6154 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6155 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6156 goto nla_put_failure;
6157 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6158 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6159 goto nla_put_failure;
6160 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6161 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6162 survey->channel_time))
6163 goto nla_put_failure;
6164 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6165 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6166 survey->channel_time_busy))
6167 goto nla_put_failure;
6168 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6169 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6170 survey->channel_time_ext_busy))
6171 goto nla_put_failure;
6172 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6173 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6174 survey->channel_time_rx))
6175 goto nla_put_failure;
6176 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6177 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6178 survey->channel_time_tx))
6179 goto nla_put_failure;
61fa713c
HS		 6180
6181 nla_nest_end(msg, infoattr);
6182
6183 return genlmsg_end(msg, hdr);
6184
6185 nla_put_failure:
6186 genlmsg_cancel(msg, hdr);
6187 return -EMSGSIZE;
6188}
6189
6190static int nl80211_dump_survey(struct sk_buff *skb,
6191 struct netlink_callback *cb)
6192{
6193 struct survey_info survey;
1b8ec87a 6194 struct cfg80211_registered_device *rdev;
97990a06
JB		 6195 struct wireless_dev *wdev;
6196 int survey_idx = cb->args[2];
61fa713c
HS		 6197 int res;
6198
1b8ec87a 6199 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6200 if (res)
6201 return res;
61fa713c 6202
97990a06
JB		 6203 if (!wdev->netdev) {
6204 res = -EINVAL;
6205 goto out_err;
6206 }
6207
1b8ec87a 6208 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6209 res = -EOPNOTSUPP;
6210 goto out_err;
6211 }
6212
6213 while (1) {
180cdc79
LR		 6214 struct ieee80211_channel *chan;
6215
1b8ec87a 6216 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6217 if (res == -ENOENT)
6218 break;
6219 if (res)
6220 goto out_err;
6221
180cdc79
LR		 6222 /* Survey without a channel doesn't make sense */
6223 if (!survey.channel) {
6224 res = -EINVAL;
6225 goto out;
6226 }
6227
1b8ec87a 6228 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6229 survey.channel->center_freq);
6230 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6231 survey_idx++;
6232 continue;
6233 }
6234
61fa713c 6235 if (nl80211_send_survey(skb,
15e47304 6236 NETLINK_CB(cb->skb).portid,
61fa713c 6237 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6238 wdev->netdev, &survey) < 0)
61fa713c
HS		 6239 goto out;
6240 survey_idx++;
6241 }
6242
6243 out:
97990a06 6244 cb->args[2] = survey_idx;
61fa713c
HS		 6245 res = skb->len;
6246 out_err:
1b8ec87a 6247 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6248 return res;
6249}
6250
b23aa676
SO		 6251static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6252{
6253 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6254 NL80211_WPA_VERSION_2));
6255}
6256
636a5d36
JM		 6257static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6258{
4c476991
JB		 6259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6260 struct net_device *dev = info->user_ptr[1];
19957bb3 6261 struct ieee80211_channel *chan;
e39e5b5e
JM		 6262 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6263 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6264 enum nl80211_auth_type auth_type;
fffd0934 6265 struct key_parse key;
d5cdfacb 6266 bool local_state_change;
636a5d36 6267
f4a11bb0
JB		 6268 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6269 return -EINVAL;
6270
6271 if (!info->attrs[NL80211_ATTR_MAC])
6272 return -EINVAL;
6273
1778092e
JM		 6274 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6275 return -EINVAL;
6276
19957bb3
JB		 6277 if (!info->attrs[NL80211_ATTR_SSID])
6278 return -EINVAL;
6279
6280 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6281 return -EINVAL;
6282
fffd0934
JB		 6283 err = nl80211_parse_key(info, &key);
6284 if (err)
6285 return err;
6286
6287 if (key.idx >= 0) {
e31b8213
JB		 6288 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6289 return -EINVAL;
fffd0934
JB		 6290 if (!key.p.key || !key.p.key_len)
6291 return -EINVAL;
6292 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6293 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6294 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6295 key.p.key_len != WLAN_KEY_LEN_WEP104))
6296 return -EINVAL;
6297 if (key.idx > 4)
6298 return -EINVAL;
6299 } else {
6300 key.p.key_len = 0;
6301 key.p.key = NULL;
6302 }
6303
afea0b7a
JB		 6304 if (key.idx >= 0) {
6305 int i;
6306 bool ok = false;
6307 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6308 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6309 ok = true;
6310 break;
6311 }
6312 }
4c476991
JB		 6313 if (!ok)
6314 return -EINVAL;
afea0b7a
JB		 6315 }
6316
4c476991
JB		 6317 if (!rdev->ops->auth)
6318 return -EOPNOTSUPP;
636a5d36 6319
074ac8df 6320 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6321 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6322 return -EOPNOTSUPP;
eec60b03 6323
19957bb3 6324 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6325 chan = nl80211_get_valid_chan(&rdev->wiphy,
6326 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6327 if (!chan)
4c476991 6328 return -EINVAL;
636a5d36 6329
19957bb3
JB		 6330 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6331 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6332
6333 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6334 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6335 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6336 }
6337
19957bb3 6338 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6339 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6340 return -EINVAL;
636a5d36 6341
e39e5b5e
JM		 6342 if (auth_type == NL80211_AUTHTYPE_SAE &&
6343 !info->attrs[NL80211_ATTR_SAE_DATA])
6344 return -EINVAL;
6345
6346 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6347 if (auth_type != NL80211_AUTHTYPE_SAE)
6348 return -EINVAL;
6349 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6350 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6351 /* need to include at least Auth Transaction and Status Code */
6352 if (sae_data_len < 4)
6353 return -EINVAL;
6354 }
6355
d5cdfacb
JM		 6356 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6357
95de817b
JB		 6358 /*
6359 * Since we no longer track auth state, ignore
6360 * requests to only change local state.
6361 */
6362 if (local_state_change)
6363 return 0;
6364
91bf9b26
JB		 6365 wdev_lock(dev->ieee80211_ptr);
6366 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6367 ssid, ssid_len, ie, ie_len,
6368 key.p.key, key.p.key_len, key.idx,
6369 sae_data, sae_data_len);
6370 wdev_unlock(dev->ieee80211_ptr);
6371 return err;
636a5d36
JM		 6372}
6373
c0692b8f
JB		 6374static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6375 struct genl_info *info,
3dc27d25
JB		 6376 struct cfg80211_crypto_settings *settings,
6377 int cipher_limit)
b23aa676 6378{
c0b2bbd8
JB		 6379 memset(settings, 0, sizeof(*settings));
6380
b23aa676
SO		 6381 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6382
c0692b8f
JB		 6383 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6384 u16 proto;
6385 proto = nla_get_u16(
6386 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6387 settings->control_port_ethertype = cpu_to_be16(proto);
6388 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6389 proto != ETH_P_PAE)
6390 return -EINVAL;
6391 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6392 settings->control_port_no_encrypt = true;
6393 } else
6394 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6395
b23aa676
SO		 6396 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6397 void *data;
6398 int len, i;
6399
6400 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6401 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6402 settings->n_ciphers_pairwise = len / sizeof(u32);
6403
6404 if (len % sizeof(u32))
6405 return -EINVAL;
6406
3dc27d25 6407 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6408 return -EINVAL;
6409
6410 memcpy(settings->ciphers_pairwise, data, len);
6411
6412 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6413 if (!cfg80211_supported_cipher_suite(
6414 &rdev->wiphy,
b23aa676
SO		 6415 settings->ciphers_pairwise[i]))
6416 return -EINVAL;
6417 }
6418
6419 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6420 settings->cipher_group =
6421 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6422 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6423 settings->cipher_group))
b23aa676
SO		 6424 return -EINVAL;
6425 }
6426
6427 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6428 settings->wpa_versions =
6429 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6430 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6431 return -EINVAL;
6432 }
6433
6434 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6435 void *data;
6d30240e 6436 int len;
b23aa676
SO		 6437
6438 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6439 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6440 settings->n_akm_suites = len / sizeof(u32);
6441
6442 if (len % sizeof(u32))
6443 return -EINVAL;
6444
1b9ca027
JM		 6445 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6446 return -EINVAL;
6447
b23aa676 6448 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6449 }
6450
6451 return 0;
6452}
6453
636a5d36
JM		 6454static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6455{
4c476991
JB		 6456 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6457 struct net_device *dev = info->user_ptr[1];
f444de05 6458 struct ieee80211_channel *chan;
f62fab73
JB		 6459 struct cfg80211_assoc_request req = {};
6460 const u8 *bssid, *ssid;
6461 int err, ssid_len = 0;
636a5d36 6462
f4a11bb0
JB		 6463 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6464 return -EINVAL;
6465
6466 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6467 !info->attrs[NL80211_ATTR_SSID] ||
6468 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6469 return -EINVAL;
6470
4c476991
JB		 6471 if (!rdev->ops->assoc)
6472 return -EOPNOTSUPP;
636a5d36 6473
074ac8df 6474 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6475 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6476 return -EOPNOTSUPP;
eec60b03 6477
19957bb3 6478 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6479
664834de
JM		 6480 chan = nl80211_get_valid_chan(&rdev->wiphy,
6481 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6482 if (!chan)
4c476991 6483 return -EINVAL;
636a5d36 6484
19957bb3
JB		 6485 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6486 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6487
6488 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6489 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6490 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6491 }
6492
dc6382ce 6493 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6494 enum nl80211_mfp mfp =
dc6382ce 6495 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6496 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6497 req.use_mfp = true;
4c476991
JB		 6498 else if (mfp != NL80211_MFP_NO)
6499 return -EINVAL;
dc6382ce
JM		 6500 }
6501
3e5d7649 6502 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6503 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6504
7e7c8926 6505 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6506 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6507
6508 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6509 memcpy(&req.ht_capa_mask,
6510 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6511 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6512
6513 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6514 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6515 return -EINVAL;
f62fab73
JB		 6516 memcpy(&req.ht_capa,
6517 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6518 sizeof(req.ht_capa));
7e7c8926
BG		 6519 }
6520
ee2aca34 6521 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6522 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6523
6524 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6525 memcpy(&req.vht_capa_mask,
6526 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6527 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6528
6529 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6530 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6531 return -EINVAL;
f62fab73
JB		 6532 memcpy(&req.vht_capa,
6533 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6534 sizeof(req.vht_capa));
ee2aca34
JB		 6535 }
6536
f62fab73 6537 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6538 if (!err) {
6539 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6540 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6541 ssid, ssid_len, &req);
91bf9b26
JB		 6542 wdev_unlock(dev->ieee80211_ptr);
6543 }
636a5d36 6544
636a5d36
JM		 6545 return err;
6546}
6547
6548static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6549{
4c476991
JB		 6550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6551 struct net_device *dev = info->user_ptr[1];
19957bb3 6552 const u8 *ie = NULL, *bssid;
91bf9b26 6553 int ie_len = 0, err;
19957bb3 6554 u16 reason_code;
d5cdfacb 6555 bool local_state_change;
636a5d36 6556
f4a11bb0
JB		 6557 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6558 return -EINVAL;
6559
6560 if (!info->attrs[NL80211_ATTR_MAC])
6561 return -EINVAL;
6562
6563 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6564 return -EINVAL;
6565
4c476991
JB		 6566 if (!rdev->ops->deauth)
6567 return -EOPNOTSUPP;
636a5d36 6568
074ac8df 6569 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6570 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6571 return -EOPNOTSUPP;
eec60b03 6572
19957bb3 6573 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6574
19957bb3
JB		 6575 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6576 if (reason_code == 0) {
f4a11bb0 6577 /* Reason Code 0 is reserved */
4c476991 6578 return -EINVAL;
255e737e 6579 }
636a5d36
JM		 6580
6581 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6582 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6583 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6584 }
6585
d5cdfacb
JM		 6586 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6587
91bf9b26
JB		 6588 wdev_lock(dev->ieee80211_ptr);
6589 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6590 local_state_change);
6591 wdev_unlock(dev->ieee80211_ptr);
6592 return err;
636a5d36
JM		 6593}
6594
6595static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6596{
4c476991
JB		 6597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6598 struct net_device *dev = info->user_ptr[1];
19957bb3 6599 const u8 *ie = NULL, *bssid;
91bf9b26 6600 int ie_len = 0, err;
19957bb3 6601 u16 reason_code;
d5cdfacb 6602 bool local_state_change;
636a5d36 6603
f4a11bb0
JB		 6604 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6605 return -EINVAL;
6606
6607 if (!info->attrs[NL80211_ATTR_MAC])
6608 return -EINVAL;
6609
6610 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6611 return -EINVAL;
6612
4c476991
JB		 6613 if (!rdev->ops->disassoc)
6614 return -EOPNOTSUPP;
636a5d36 6615
074ac8df 6616 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6617 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6618 return -EOPNOTSUPP;
eec60b03 6619
19957bb3 6620 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6621
19957bb3
JB		 6622 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6623 if (reason_code == 0) {
f4a11bb0 6624 /* Reason Code 0 is reserved */
4c476991 6625 return -EINVAL;
255e737e 6626 }
636a5d36
JM		 6627
6628 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6629 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6630 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6631 }
6632
d5cdfacb
JM		 6633 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6634
91bf9b26
JB		 6635 wdev_lock(dev->ieee80211_ptr);
6636 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6637 local_state_change);
6638 wdev_unlock(dev->ieee80211_ptr);
6639 return err;
636a5d36
JM		 6640}
6641
dd5b4cc7
FF		 6642static bool
6643nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6644 int mcast_rate[IEEE80211_NUM_BANDS],
6645 int rateval)
6646{
6647 struct wiphy *wiphy = &rdev->wiphy;
6648 bool found = false;
6649 int band, i;
6650
6651 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6652 struct ieee80211_supported_band *sband;
6653
6654 sband = wiphy->bands[band];
6655 if (!sband)
6656 continue;
6657
6658 for (i = 0; i < sband->n_bitrates; i++) {
6659 if (sband->bitrates[i].bitrate == rateval) {
6660 mcast_rate[band] = i + 1;
6661 found = true;
6662 break;
6663 }
6664 }
6665 }
6666
6667 return found;
6668}
6669
04a773ad
JB		 6670static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6671{
4c476991
JB		 6672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6673 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6674 struct cfg80211_ibss_params ibss;
6675 struct wiphy *wiphy;
fffd0934 6676 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6677 int err;
6678
8e30bc55
JB		 6679 memset(&ibss, 0, sizeof(ibss));
6680
04a773ad
JB		 6681 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6682 return -EINVAL;
6683
683b6d3b 6684 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6685 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6686 return -EINVAL;
6687
8e30bc55
JB		 6688 ibss.beacon_interval = 100;
6689
6690 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6691 ibss.beacon_interval =
6692 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6693 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6694 return -EINVAL;
6695 }
6696
4c476991
JB		 6697 if (!rdev->ops->join_ibss)
6698 return -EOPNOTSUPP;
04a773ad 6699
4c476991
JB		 6700 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6701 return -EOPNOTSUPP;
04a773ad 6702
79c97e97 6703 wiphy = &rdev->wiphy;
04a773ad 6704
39193498 6705 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6706 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6707
6708 if (!is_valid_ether_addr(ibss.bssid))
6709 return -EINVAL;
6710 }
04a773ad
JB		 6711 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6712 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6713
6714 if (info->attrs[NL80211_ATTR_IE]) {
6715 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6716 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6717 }
6718
683b6d3b
JB		 6719 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6720 if (err)
6721 return err;
04a773ad 6722
174e0cd2
IP		 6723 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6724 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6725 return -EINVAL;
6726
2f301ab2 6727 switch (ibss.chandef.width) {
bf372645
SW		 6728 case NL80211_CHAN_WIDTH_5:
6729 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6730 case NL80211_CHAN_WIDTH_20_NOHT:
6731 break;
6732 case NL80211_CHAN_WIDTH_20:
6733 case NL80211_CHAN_WIDTH_40:
6734 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6735 break;
6736 default:
c04d6150 6737 return -EINVAL;
2f301ab2 6738 }
db9c64cf 6739
04a773ad 6740 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6741 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6742
fbd2c8dc
TP		 6743 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6744 u8 *rates =
6745 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6746 int n_rates =
6747 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6748 struct ieee80211_supported_band *sband =
683b6d3b 6749 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6750
34850ab2
JB		 6751 err = ieee80211_get_ratemask(sband, rates, n_rates,
6752 &ibss.basic_rates);
6753 if (err)
6754 return err;
fbd2c8dc 6755 }
dd5b4cc7 6756
803768f5
SW		 6757 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6758 memcpy(&ibss.ht_capa_mask,
6759 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6760 sizeof(ibss.ht_capa_mask));
6761
6762 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6763 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6764 return -EINVAL;
6765 memcpy(&ibss.ht_capa,
6766 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6767 sizeof(ibss.ht_capa));
6768 }
6769
dd5b4cc7
FF		 6770 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6771 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6772 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6773 return -EINVAL;
fbd2c8dc 6774
4c476991 6775 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6776 bool no_ht = false;
6777
4c476991 6778 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6779 info->attrs[NL80211_ATTR_KEYS],
6780 &no_ht);
4c476991
JB		 6781 if (IS_ERR(connkeys))
6782 return PTR_ERR(connkeys);
de7044ee 6783
3d9d1d66
JB		 6784 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6785 no_ht) {
de7044ee
SM		 6786 kfree(connkeys);
6787 return -EINVAL;
6788 }
4c476991 6789 }
04a773ad 6790
267335d6
AQ		 6791 ibss.control_port =
6792 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6793
5336fa88
SW		 6794 ibss.userspace_handles_dfs =
6795 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6796
4c476991 6797 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6798 if (err)
6799 kfree(connkeys);
04a773ad
JB		 6800 return err;
6801}
6802
6803static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6804{
4c476991
JB		 6805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6806 struct net_device *dev = info->user_ptr[1];
04a773ad 6807
4c476991
JB		 6808 if (!rdev->ops->leave_ibss)
6809 return -EOPNOTSUPP;
04a773ad 6810
4c476991
JB		 6811 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6812 return -EOPNOTSUPP;
04a773ad 6813
4c476991 6814 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6815}
6816
f4e583c8
AQ		 6817static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6818{
6819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6820 struct net_device *dev = info->user_ptr[1];
6821 int mcast_rate[IEEE80211_NUM_BANDS];
6822 u32 nla_rate;
6823 int err;
6824
6825 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6826 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6827 return -EOPNOTSUPP;
6828
6829 if (!rdev->ops->set_mcast_rate)
6830 return -EOPNOTSUPP;
6831
6832 memset(mcast_rate, 0, sizeof(mcast_rate));
6833
6834 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6835 return -EINVAL;
6836
6837 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6838 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6839 return -EINVAL;
6840
6841 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6842
6843 return err;
6844}
6845
ad7e718c
JB		 6846static struct sk_buff *
6847__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6848 int approxlen, u32 portid, u32 seq,
6849 enum nl80211_commands cmd,
567ffc35
JB		 6850 enum nl80211_attrs attr,
6851 const struct nl80211_vendor_cmd_info *info,
6852 gfp_t gfp)
ad7e718c
JB		 6853{
6854 struct sk_buff *skb;
6855 void *hdr;
6856 struct nlattr *data;
6857
6858 skb = nlmsg_new(approxlen + 100, gfp);
6859 if (!skb)
6860 return NULL;
6861
6862 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6863 if (!hdr) {
6864 kfree_skb(skb);
6865 return NULL;
6866 }
6867
6868 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6869 goto nla_put_failure;
567ffc35
JB		 6870
6871 if (info) {
6872 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6873 info->vendor_id))
6874 goto nla_put_failure;
6875 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6876 info->subcmd))
6877 goto nla_put_failure;
6878 }
6879
ad7e718c
JB		 6880 data = nla_nest_start(skb, attr);
6881
6882 ((void **)skb->cb)[0] = rdev;
6883 ((void **)skb->cb)[1] = hdr;
6884 ((void **)skb->cb)[2] = data;
6885
6886 return skb;
6887
6888 nla_put_failure:
6889 kfree_skb(skb);
6890 return NULL;
6891}
f4e583c8 6892
e03ad6ea
JB		 6893struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6894 enum nl80211_commands cmd,
6895 enum nl80211_attrs attr,
6896 int vendor_event_idx,
6897 int approxlen, gfp_t gfp)
6898{
f26cbf40 6899 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6900 const struct nl80211_vendor_cmd_info *info;
6901
6902 switch (cmd) {
6903 case NL80211_CMD_TESTMODE:
6904 if (WARN_ON(vendor_event_idx != -1))
6905 return NULL;
6906 info = NULL;
6907 break;
6908 case NL80211_CMD_VENDOR:
6909 if (WARN_ON(vendor_event_idx < 0 ||
6910 vendor_event_idx >= wiphy->n_vendor_events))
6911 return NULL;
6912 info = &wiphy->vendor_events[vendor_event_idx];
6913 break;
6914 default:
6915 WARN_ON(1);
6916 return NULL;
6917 }
6918
6919 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6920 cmd, attr, info, gfp);
6921}
6922EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6923
6924void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6925{
6926 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6927 void *hdr = ((void **)skb->cb)[1];
6928 struct nlattr *data = ((void **)skb->cb)[2];
6929 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6930
6931 nla_nest_end(skb, data);
6932 genlmsg_end(skb, hdr);
6933
6934 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6935 mcgrp = NL80211_MCGRP_VENDOR;
6936
6937 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6938 mcgrp, gfp);
6939}
6940EXPORT_SYMBOL(__cfg80211_send_event_skb);
6941
aff89a9b 6942#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6943static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6944{
4c476991 6945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6946 struct wireless_dev *wdev =
6947 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6948 int err;
6949
fc73f11f
DS		 6950 if (!rdev->ops->testmode_cmd)
6951 return -EOPNOTSUPP;
6952
6953 if (IS_ERR(wdev)) {
6954 err = PTR_ERR(wdev);
6955 if (err != -EINVAL)
6956 return err;
6957 wdev = NULL;
6958 } else if (wdev->wiphy != &rdev->wiphy) {
6959 return -EINVAL;
6960 }
6961
aff89a9b
JB		 6962 if (!info->attrs[NL80211_ATTR_TESTDATA])
6963 return -EINVAL;
6964
ad7e718c 6965 rdev->cur_cmd_info = info;
fc73f11f 6966 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6967 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6968 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 6969 rdev->cur_cmd_info = NULL;
aff89a9b 6970
aff89a9b
JB		 6971 return err;
6972}
6973
71063f0e
WYG		 6974static int nl80211_testmode_dump(struct sk_buff *skb,
6975 struct netlink_callback *cb)
6976{
00918d33 6977 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6978 int err;
6979 long phy_idx;
6980 void *data = NULL;
6981 int data_len = 0;
6982
5fe231e8
JB		 6983 rtnl_lock();
6984
71063f0e
WYG		 6985 if (cb->args[0]) {
6986 /*
6987 * 0 is a valid index, but not valid for args[0],
6988 * so we need to offset by 1.
6989 */
6990 phy_idx = cb->args[0] - 1;
6991 } else {
6992 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6993 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6994 nl80211_policy);
6995 if (err)
5fe231e8 6996 goto out_err;
00918d33 6997
2bd7e35d
JB		 6998 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6999 nl80211_fam.attrbuf);
7000 if (IS_ERR(rdev)) {
5fe231e8
JB		 7001 err = PTR_ERR(rdev);
7002 goto out_err;
00918d33 7003 }
2bd7e35d
JB		 7004 phy_idx = rdev->wiphy_idx;
7005 rdev = NULL;
2bd7e35d 7006
71063f0e
WYG		 7007 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7008 cb->args[1] =
7009 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7010 }
7011
7012 if (cb->args[1]) {
7013 data = nla_data((void *)cb->args[1]);
7014 data_len = nla_len((void *)cb->args[1]);
7015 }
7016
00918d33
JB		 7017 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7018 if (!rdev) {
5fe231e8
JB		 7019 err = -ENOENT;
7020 goto out_err;
71063f0e 7021 }
71063f0e 7022
00918d33 7023 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7024 err = -EOPNOTSUPP;
7025 goto out_err;
7026 }
7027
7028 while (1) {
15e47304 7029 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7030 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7031 NL80211_CMD_TESTMODE);
7032 struct nlattr *tmdata;
7033
cb35fba3
DC		 7034 if (!hdr)
7035 break;
7036
9360ffd1 7037 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7038 genlmsg_cancel(skb, hdr);
7039 break;
7040 }
7041
7042 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7043 if (!tmdata) {
7044 genlmsg_cancel(skb, hdr);
7045 break;
7046 }
e35e4d28 7047 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7048 nla_nest_end(skb, tmdata);
7049
7050 if (err == -ENOBUFS || err == -ENOENT) {
7051 genlmsg_cancel(skb, hdr);
7052 break;
7053 } else if (err) {
7054 genlmsg_cancel(skb, hdr);
7055 goto out_err;
7056 }
7057
7058 genlmsg_end(skb, hdr);
7059 }
7060
7061 err = skb->len;
7062 /* see above */
7063 cb->args[0] = phy_idx + 1;
7064 out_err:
5fe231e8 7065 rtnl_unlock();
71063f0e
WYG		 7066 return err;
7067}
aff89a9b
JB		 7068#endif
7069
b23aa676
SO		 7070static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7071{
4c476991
JB		 7072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7073 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7074 struct cfg80211_connect_params connect;
7075 struct wiphy *wiphy;
fffd0934 7076 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7077 int err;
7078
7079 memset(&connect, 0, sizeof(connect));
7080
7081 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7082 return -EINVAL;
7083
7084 if (!info->attrs[NL80211_ATTR_SSID] ||
7085 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7086 return -EINVAL;
7087
7088 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7089 connect.auth_type =
7090 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7091 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7092 NL80211_CMD_CONNECT))
b23aa676
SO		 7093 return -EINVAL;
7094 } else
7095 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7096
7097 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7098
c0692b8f 7099 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7100 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7101 if (err)
7102 return err;
b23aa676 7103
074ac8df 7104 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7105 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7106 return -EOPNOTSUPP;
b23aa676 7107
79c97e97 7108 wiphy = &rdev->wiphy;
b23aa676 7109
4486ea98
BS		 7110 connect.bg_scan_period = -1;
7111 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7112 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7113 connect.bg_scan_period =
7114 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7115 }
7116
b23aa676
SO		 7117 if (info->attrs[NL80211_ATTR_MAC])
7118 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7119 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7120 connect.bssid_hint =
7121 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7122 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7123 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7124
7125 if (info->attrs[NL80211_ATTR_IE]) {
7126 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7127 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7128 }
7129
cee00a95
JM		 7130 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7131 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7132 if (connect.mfp != NL80211_MFP_REQUIRED &&
7133 connect.mfp != NL80211_MFP_NO)
7134 return -EINVAL;
7135 } else {
7136 connect.mfp = NL80211_MFP_NO;
7137 }
7138
b23aa676 7139 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7140 connect.channel = nl80211_get_valid_chan(
7141 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7142 if (!connect.channel)
1df4a510
JM		 7143 return -EINVAL;
7144 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7145 connect.channel_hint = nl80211_get_valid_chan(
7146 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7147 if (!connect.channel_hint)
4c476991 7148 return -EINVAL;
b23aa676
SO		 7149 }
7150
fffd0934
JB		 7151 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7152 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7153 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7154 if (IS_ERR(connkeys))
7155 return PTR_ERR(connkeys);
fffd0934
JB		 7156 }
7157
7e7c8926
BG		 7158 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7159 connect.flags |= ASSOC_REQ_DISABLE_HT;
7160
7161 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7162 memcpy(&connect.ht_capa_mask,
7163 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7164 sizeof(connect.ht_capa_mask));
7165
7166 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7167 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7168 kfree(connkeys);
7e7c8926 7169 return -EINVAL;
b4e4f47e 7170 }
7e7c8926
BG		 7171 memcpy(&connect.ht_capa,
7172 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7173 sizeof(connect.ht_capa));
7174 }
7175
ee2aca34
JB		 7176 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7177 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7178
7179 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7180 memcpy(&connect.vht_capa_mask,
7181 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7182 sizeof(connect.vht_capa_mask));
7183
7184 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7185 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7186 kfree(connkeys);
7187 return -EINVAL;
7188 }
7189 memcpy(&connect.vht_capa,
7190 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7191 sizeof(connect.vht_capa));
7192 }
7193
83739b03
JB		 7194 wdev_lock(dev->ieee80211_ptr);
7195 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7196 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7197 if (err)
7198 kfree(connkeys);
b23aa676
SO		 7199 return err;
7200}
7201
7202static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7203{
4c476991
JB		 7204 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7205 struct net_device *dev = info->user_ptr[1];
b23aa676 7206 u16 reason;
83739b03 7207 int ret;
b23aa676
SO		 7208
7209 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7210 reason = WLAN_REASON_DEAUTH_LEAVING;
7211 else
7212 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7213
7214 if (reason == 0)
7215 return -EINVAL;
7216
074ac8df 7217 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7218 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7219 return -EOPNOTSUPP;
b23aa676 7220
83739b03
JB		 7221 wdev_lock(dev->ieee80211_ptr);
7222 ret = cfg80211_disconnect(rdev, dev, reason, true);
7223 wdev_unlock(dev->ieee80211_ptr);
7224 return ret;
b23aa676
SO		 7225}
7226
463d0183
JB		 7227static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7228{
4c476991 7229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7230 struct net *net;
7231 int err;
7232 u32 pid;
7233
7234 if (!info->attrs[NL80211_ATTR_PID])
7235 return -EINVAL;
7236
7237 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7238
463d0183 7239 net = get_net_ns_by_pid(pid);
4c476991
JB		 7240 if (IS_ERR(net))
7241 return PTR_ERR(net);
463d0183
JB		 7242
7243 err = 0;
7244
7245 /* check if anything to do */
4c476991
JB		 7246 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7247 err = cfg80211_switch_netns(rdev, net);
463d0183 7248
463d0183 7249 put_net(net);
463d0183
JB		 7250 return err;
7251}
7252
67fbb16b
SO		 7253static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7254{
4c476991 7255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7256 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7257 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7258 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7259 struct cfg80211_pmksa pmksa;
7260
7261 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7262
7263 if (!info->attrs[NL80211_ATTR_MAC])
7264 return -EINVAL;
7265
7266 if (!info->attrs[NL80211_ATTR_PMKID])
7267 return -EINVAL;
7268
67fbb16b
SO		 7269 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7270 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7271
074ac8df 7272 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7273 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7274 return -EOPNOTSUPP;
67fbb16b
SO		 7275
7276 switch (info->genlhdr->cmd) {
7277 case NL80211_CMD_SET_PMKSA:
7278 rdev_ops = rdev->ops->set_pmksa;
7279 break;
7280 case NL80211_CMD_DEL_PMKSA:
7281 rdev_ops = rdev->ops->del_pmksa;
7282 break;
7283 default:
7284 WARN_ON(1);
7285 break;
7286 }
7287
4c476991
JB		 7288 if (!rdev_ops)
7289 return -EOPNOTSUPP;
67fbb16b 7290
4c476991 7291 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7292}
7293
7294static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7295{
4c476991
JB		 7296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7297 struct net_device *dev = info->user_ptr[1];
67fbb16b 7298
074ac8df 7299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7300 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7301 return -EOPNOTSUPP;
67fbb16b 7302
4c476991
JB		 7303 if (!rdev->ops->flush_pmksa)
7304 return -EOPNOTSUPP;
67fbb16b 7305
e35e4d28 7306 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7307}
7308
109086ce
AN		 7309static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7310{
7311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7312 struct net_device *dev = info->user_ptr[1];
7313 u8 action_code, dialog_token;
df942e7b 7314 u32 peer_capability = 0;
109086ce
AN		 7315 u16 status_code;
7316 u8 *peer;
7317
7318 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7319 !rdev->ops->tdls_mgmt)
7320 return -EOPNOTSUPP;
7321
7322 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7323 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7324 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7325 !info->attrs[NL80211_ATTR_IE] ||
7326 !info->attrs[NL80211_ATTR_MAC])
7327 return -EINVAL;
7328
7329 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7330 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7331 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7332 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7333 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7334 peer_capability =
7335 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7336
e35e4d28 7337 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7338 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7339 nla_data(info->attrs[NL80211_ATTR_IE]),
7340 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7341}
7342
7343static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7344{
7345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7346 struct net_device *dev = info->user_ptr[1];
7347 enum nl80211_tdls_operation operation;
7348 u8 *peer;
7349
7350 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7351 !rdev->ops->tdls_oper)
7352 return -EOPNOTSUPP;
7353
7354 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7355 !info->attrs[NL80211_ATTR_MAC])
7356 return -EINVAL;
7357
7358 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7359 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7360
e35e4d28 7361 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7362}
7363
9588bbd5
JM		 7364static int nl80211_remain_on_channel(struct sk_buff *skb,
7365 struct genl_info *info)
7366{
4c476991 7367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7368 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7369 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7370 struct sk_buff *msg;
7371 void *hdr;
7372 u64 cookie;
683b6d3b 7373 u32 duration;
9588bbd5
JM		 7374 int err;
7375
7376 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7377 !info->attrs[NL80211_ATTR_DURATION])
7378 return -EINVAL;
7379
7380 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7381
ebf348fc
JB		 7382 if (!rdev->ops->remain_on_channel ||
7383 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7384 return -EOPNOTSUPP;
7385
9588bbd5 7386 /*
ebf348fc
JB		 7387 * We should be on that channel for at least a minimum amount of
7388 * time (10ms) but no longer than the driver supports.
9588bbd5 7389 */
ebf348fc 7390 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7391 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7392 return -EINVAL;
7393
683b6d3b
JB		 7394 err = nl80211_parse_chandef(rdev, info, &chandef);
7395 if (err)
7396 return err;
9588bbd5
JM		 7397
7398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7399 if (!msg)
7400 return -ENOMEM;
9588bbd5 7401
15e47304 7402 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7403 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7404 if (!hdr) {
7405 err = -ENOBUFS;
9588bbd5
JM		 7406 goto free_msg;
7407 }
7408
683b6d3b
JB		 7409 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7410 duration, &cookie);
9588bbd5
JM		 7411
7412 if (err)
7413 goto free_msg;
7414
9360ffd1
DM		 7415 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7416 goto nla_put_failure;
9588bbd5
JM		 7417
7418 genlmsg_end(msg, hdr);
4c476991
JB		 7419
7420 return genlmsg_reply(msg, info);
9588bbd5
JM		 7421
7422 nla_put_failure:
7423 err = -ENOBUFS;
7424 free_msg:
7425 nlmsg_free(msg);
9588bbd5
JM		 7426 return err;
7427}
7428
7429static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7430 struct genl_info *info)
7431{
4c476991 7432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7433 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7434 u64 cookie;
9588bbd5
JM		 7435
7436 if (!info->attrs[NL80211_ATTR_COOKIE])
7437 return -EINVAL;
7438
4c476991
JB		 7439 if (!rdev->ops->cancel_remain_on_channel)
7440 return -EOPNOTSUPP;
9588bbd5 7441
9588bbd5
JM		 7442 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7443
e35e4d28 7444 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7445}
7446
13ae75b1
JM		 7447static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7448 u8 *rates, u8 rates_len)
7449{
7450 u8 i;
7451 u32 mask = 0;
7452
7453 for (i = 0; i < rates_len; i++) {
7454 int rate = (rates[i] & 0x7f) * 5;
7455 int ridx;
7456 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7457 struct ieee80211_rate *srate =
7458 &sband->bitrates[ridx];
7459 if (rate == srate->bitrate) {
7460 mask |= 1 << ridx;
7461 break;
7462 }
7463 }
7464 if (ridx == sband->n_bitrates)
7465 return 0; /* rate not found */
7466 }
7467
7468 return mask;
7469}
7470
24db78c0
SW		 7471static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7472 u8 *rates, u8 rates_len,
7473 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7474{
7475 u8 i;
7476
7477 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7478
7479 for (i = 0; i < rates_len; i++) {
7480 int ridx, rbit;
7481
7482 ridx = rates[i] / 8;
7483 rbit = BIT(rates[i] % 8);
7484
7485 /* check validity */
910570b5 7486 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7487 return false;
7488
7489 /* check availability */
7490 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7491 mcs[ridx] |= rbit;
7492 else
7493 return false;
7494 }
7495
7496 return true;
7497}
7498
204e35a9
JD		 7499static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7500{
7501 u16 mcs_mask = 0;
7502
7503 switch (vht_mcs_map) {
7504 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7505 break;
7506 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7507 mcs_mask = 0x00FF;
7508 break;
7509 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7510 mcs_mask = 0x01FF;
7511 break;
7512 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7513 mcs_mask = 0x03FF;
7514 break;
7515 default:
7516 break;
7517 }
7518
7519 return mcs_mask;
7520}
7521
7522static void vht_build_mcs_mask(u16 vht_mcs_map,
7523 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7524{
7525 u8 nss;
7526
7527 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7528 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7529 vht_mcs_map >>= 2;
7530 }
7531}
7532
7533static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7534 struct nl80211_txrate_vht *txrate,
7535 u16 mcs[NL80211_VHT_NSS_MAX])
7536{
7537 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7538 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7539 u8 i;
7540
7541 if (!sband->vht_cap.vht_supported)
7542 return false;
7543
7544 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7545
7546 /* Build vht_mcs_mask from VHT capabilities */
7547 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7548
7549 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7550 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7551 mcs[i] = txrate->mcs[i];
7552 else
7553 return false;
7554 }
7555
7556 return true;
7557}
7558
b54452b0 7559static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7560 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7561 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7562 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7563 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7564 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7565 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7566};
7567
7568static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7569 struct genl_info *info)
7570{
7571 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7572 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7573 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7574 int rem, i;
7575 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7576 struct nlattr *tx_rates;
7577 struct ieee80211_supported_band *sband;
204e35a9 7578 u16 vht_tx_mcs_map;
13ae75b1 7579
4c476991
JB		 7580 if (!rdev->ops->set_bitrate_mask)
7581 return -EOPNOTSUPP;
13ae75b1
JM		 7582
7583 memset(&mask, 0, sizeof(mask));
7584 /* Default to all rates enabled */
7585 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7586 sband = rdev->wiphy.bands[i];
7869303b
JD		 7587
7588 if (!sband)
7589 continue;
7590
7591 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7592 memcpy(mask.control[i].ht_mcs,
7869303b 7593 sband->ht_cap.mcs.rx_mask,
d1e33e65 7594 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7595
7596 if (!sband->vht_cap.vht_supported)
7597 continue;
7598
7599 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7600 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7601 }
7602
b9243ab0
JD		 7603 /* if no rates are given set it back to the defaults */
7604 if (!info->attrs[NL80211_ATTR_TX_RATES])
7605 goto out;
7606
13ae75b1
JM		 7607 /*
7608 * The nested attribute uses enum nl80211_band as the index. This maps
7609 * directly to the enum ieee80211_band values used in cfg80211.
7610 */
24db78c0 7611 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7612 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7613 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7614 int err;
7615
4c476991
JB		 7616 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7617 return -EINVAL;
13ae75b1 7618 sband = rdev->wiphy.bands[band];
4c476991
JB		 7619 if (sband == NULL)
7620 return -EINVAL;
ae811e21
JB		 7621 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7622 nla_len(tx_rates), nl80211_txattr_policy);
7623 if (err)
7624 return err;
13ae75b1
JM		 7625 if (tb[NL80211_TXRATE_LEGACY]) {
7626 mask.control[band].legacy = rateset_to_mask(
7627 sband,
7628 nla_data(tb[NL80211_TXRATE_LEGACY]),
7629 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7630 if ((mask.control[band].legacy == 0) &&
7631 nla_len(tb[NL80211_TXRATE_LEGACY]))
7632 return -EINVAL;
24db78c0 7633 }
d1e33e65 7634 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7635 if (!ht_rateset_to_mask(
7636 sband,
d1e33e65
JD		 7637 nla_data(tb[NL80211_TXRATE_HT]),
7638 nla_len(tb[NL80211_TXRATE_HT]),
7639 mask.control[band].ht_mcs))
24db78c0
SW		 7640 return -EINVAL;
7641 }
204e35a9
JD		 7642 if (tb[NL80211_TXRATE_VHT]) {
7643 if (!vht_set_mcs_mask(
7644 sband,
7645 nla_data(tb[NL80211_TXRATE_VHT]),
7646 mask.control[band].vht_mcs))
7647 return -EINVAL;
7648 }
0b9323f6
JD		 7649 if (tb[NL80211_TXRATE_GI]) {
7650 mask.control[band].gi =
7651 nla_get_u8(tb[NL80211_TXRATE_GI]);
7652 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7653 return -EINVAL;
7654 }
24db78c0
SW		 7655
7656 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7657 /* don't allow empty legacy rates if HT or VHT
7658 * are not even supported.
7659 */
7660 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7661 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7662 return -EINVAL;
7663
7664 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7665 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7666 goto out;
7667
7668 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7669 if (mask.control[band].vht_mcs[i])
7670 goto out;
24db78c0
SW		 7671
7672 /* legacy and mcs rates may not be both empty */
204e35a9 7673 return -EINVAL;
13ae75b1
JM		 7674 }
7675 }
7676
b9243ab0 7677out:
e35e4d28 7678 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7679}
7680
2e161f78 7681static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7682{
4c476991 7683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7684 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7685 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7686
7687 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7688 return -EINVAL;
7689
2e161f78
JB		 7690 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7691 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7692
71bbc994
JB		 7693 switch (wdev->iftype) {
7694 case NL80211_IFTYPE_STATION:
7695 case NL80211_IFTYPE_ADHOC:
7696 case NL80211_IFTYPE_P2P_CLIENT:
7697 case NL80211_IFTYPE_AP:
7698 case NL80211_IFTYPE_AP_VLAN:
7699 case NL80211_IFTYPE_MESH_POINT:
7700 case NL80211_IFTYPE_P2P_GO:
98104fde 7701 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7702 break;
7703 default:
4c476991 7704 return -EOPNOTSUPP;
71bbc994 7705 }
026331c4
JM		 7706
7707 /* not much point in registering if we can't reply */
4c476991
JB		 7708 if (!rdev->ops->mgmt_tx)
7709 return -EOPNOTSUPP;
026331c4 7710
15e47304 7711 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7712 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7713 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7714}
7715
2e161f78 7716static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7717{
4c476991 7718 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7719 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7720 struct cfg80211_chan_def chandef;
026331c4 7721 int err;
d64d373f 7722 void *hdr = NULL;
026331c4 7723 u64 cookie;
e247bd90 7724 struct sk_buff *msg = NULL;
b176e629
AO		 7725 struct cfg80211_mgmt_tx_params params = {
7726 .dont_wait_for_ack =
7727 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7728 };
026331c4 7729
683b6d3b 7730 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7731 return -EINVAL;
7732
4c476991
JB		 7733 if (!rdev->ops->mgmt_tx)
7734 return -EOPNOTSUPP;
026331c4 7735
71bbc994 7736 switch (wdev->iftype) {
ea141b75
AQ		 7737 case NL80211_IFTYPE_P2P_DEVICE:
7738 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7739 return -EINVAL;
71bbc994
JB		 7740 case NL80211_IFTYPE_STATION:
7741 case NL80211_IFTYPE_ADHOC:
7742 case NL80211_IFTYPE_P2P_CLIENT:
7743 case NL80211_IFTYPE_AP:
7744 case NL80211_IFTYPE_AP_VLAN:
7745 case NL80211_IFTYPE_MESH_POINT:
7746 case NL80211_IFTYPE_P2P_GO:
7747 break;
7748 default:
4c476991 7749 return -EOPNOTSUPP;
71bbc994 7750 }
026331c4 7751
f7ca38df 7752 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7753 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7754 return -EINVAL;
b176e629 7755 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7756
7757 /*
7758 * We should wait on the channel for at least a minimum amount
7759 * of time (10ms) but no longer than the driver supports.
7760 */
b176e629
AO		 7761 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7762 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7763 return -EINVAL;
7764
f7ca38df
JB		 7765 }
7766
b176e629 7767 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7768
b176e629 7769 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7770 return -EINVAL;
7771
b176e629 7772 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7773
ea141b75
AQ		 7774 /* get the channel if any has been specified, otherwise pass NULL to
7775 * the driver. The latter will use the current one
7776 */
7777 chandef.chan = NULL;
7778 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7779 err = nl80211_parse_chandef(rdev, info, &chandef);
7780 if (err)
7781 return err;
7782 }
7783
b176e629 7784 if (!chandef.chan && params.offchan)
ea141b75 7785 return -EINVAL;
026331c4 7786
b176e629 7787 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7788 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7789 if (!msg)
7790 return -ENOMEM;
026331c4 7791
15e47304 7792 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7793 NL80211_CMD_FRAME);
cb35fba3
DC		 7794 if (!hdr) {
7795 err = -ENOBUFS;
e247bd90
JB		 7796 goto free_msg;
7797 }
026331c4 7798 }
e247bd90 7799
b176e629
AO		 7800 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7801 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7802 params.chan = chandef.chan;
7803 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7804 if (err)
7805 goto free_msg;
7806
e247bd90 7807 if (msg) {
9360ffd1
DM		 7808 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7809 goto nla_put_failure;
026331c4 7810
e247bd90
JB		 7811 genlmsg_end(msg, hdr);
7812 return genlmsg_reply(msg, info);
7813 }
7814
7815 return 0;
026331c4
JM		 7816
7817 nla_put_failure:
7818 err = -ENOBUFS;
7819 free_msg:
7820 nlmsg_free(msg);
026331c4
JM		 7821 return err;
7822}
7823
f7ca38df
JB		 7824static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7825{
7826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7827 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7828 u64 cookie;
7829
7830 if (!info->attrs[NL80211_ATTR_COOKIE])
7831 return -EINVAL;
7832
7833 if (!rdev->ops->mgmt_tx_cancel_wait)
7834 return -EOPNOTSUPP;
7835
71bbc994
JB		 7836 switch (wdev->iftype) {
7837 case NL80211_IFTYPE_STATION:
7838 case NL80211_IFTYPE_ADHOC:
7839 case NL80211_IFTYPE_P2P_CLIENT:
7840 case NL80211_IFTYPE_AP:
7841 case NL80211_IFTYPE_AP_VLAN:
7842 case NL80211_IFTYPE_P2P_GO:
98104fde 7843 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7844 break;
7845 default:
f7ca38df 7846 return -EOPNOTSUPP;
71bbc994 7847 }
f7ca38df
JB		 7848
7849 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7850
e35e4d28 7851 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7852}
7853
ffb9eb3d
KV		 7854static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7855{
4c476991 7856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7857 struct wireless_dev *wdev;
4c476991 7858 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7859 u8 ps_state;
7860 bool state;
7861 int err;
7862
4c476991
JB		 7863 if (!info->attrs[NL80211_ATTR_PS_STATE])
7864 return -EINVAL;
ffb9eb3d
KV		 7865
7866 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7867
4c476991
JB		 7868 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7869 return -EINVAL;
ffb9eb3d
KV		 7870
7871 wdev = dev->ieee80211_ptr;
7872
4c476991
JB		 7873 if (!rdev->ops->set_power_mgmt)
7874 return -EOPNOTSUPP;
ffb9eb3d
KV		 7875
7876 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7877
7878 if (state == wdev->ps)
4c476991 7879 return 0;
ffb9eb3d 7880
e35e4d28 7881 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7882 if (!err)
7883 wdev->ps = state;
ffb9eb3d
KV		 7884 return err;
7885}
7886
7887static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7888{
4c476991 7889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7890 enum nl80211_ps_state ps_state;
7891 struct wireless_dev *wdev;
4c476991 7892 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7893 struct sk_buff *msg;
7894 void *hdr;
7895 int err;
7896
ffb9eb3d
KV		 7897 wdev = dev->ieee80211_ptr;
7898
4c476991
JB		 7899 if (!rdev->ops->set_power_mgmt)
7900 return -EOPNOTSUPP;
ffb9eb3d
KV		 7901
7902 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7903 if (!msg)
7904 return -ENOMEM;
ffb9eb3d 7905
15e47304 7906 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7907 NL80211_CMD_GET_POWER_SAVE);
7908 if (!hdr) {
4c476991 7909 err = -ENOBUFS;
ffb9eb3d
KV		 7910 goto free_msg;
7911 }
7912
7913 if (wdev->ps)
7914 ps_state = NL80211_PS_ENABLED;
7915 else
7916 ps_state = NL80211_PS_DISABLED;
7917
9360ffd1
DM		 7918 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7919 goto nla_put_failure;
ffb9eb3d
KV		 7920
7921 genlmsg_end(msg, hdr);
4c476991 7922 return genlmsg_reply(msg, info);
ffb9eb3d 7923
4c476991 7924 nla_put_failure:
ffb9eb3d 7925 err = -ENOBUFS;
4c476991 7926 free_msg:
ffb9eb3d 7927 nlmsg_free(msg);
ffb9eb3d
KV		 7928 return err;
7929}
7930
94e860f1
JB		 7931static const struct nla_policy
7932nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 7933 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7934 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7935 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7936 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7937 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7938 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7939};
7940
84f10708 7941static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7942 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7943{
7944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7945 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7946 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7947
d9d8b019 7948 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7949 return -EINVAL;
7950
84f10708
TP		 7951 if (!rdev->ops->set_cqm_txe_config)
7952 return -EOPNOTSUPP;
7953
7954 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7955 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7956 return -EOPNOTSUPP;
7957
e35e4d28 7958 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7959}
7960
d6dc1a38
JO		 7961static int nl80211_set_cqm_rssi(struct genl_info *info,
7962 s32 threshold, u32 hysteresis)
7963{
4c476991 7964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7965 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7966 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7967
7968 if (threshold > 0)
7969 return -EINVAL;
7970
1da5fcc8
JB		 7971 /* disabling - hysteresis should also be zero then */
7972 if (threshold == 0)
7973 hysteresis = 0;
d6dc1a38 7974
4c476991
JB		 7975 if (!rdev->ops->set_cqm_rssi_config)
7976 return -EOPNOTSUPP;
d6dc1a38 7977
074ac8df 7978 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7979 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7980 return -EOPNOTSUPP;
d6dc1a38 7981
e35e4d28 7982 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7983}
7984
7985static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7986{
7987 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7988 struct nlattr *cqm;
7989 int err;
7990
7991 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7992 if (!cqm)
7993 return -EINVAL;
d6dc1a38
JO		 7994
7995 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7996 nl80211_attr_cqm_policy);
7997 if (err)
1da5fcc8 7998 return err;
d6dc1a38
JO		 7999
8000 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8001 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8002 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8003 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8004
1da5fcc8
JB		 8005 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8006 }
8007
8008 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8009 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8010 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8011 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8012 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8013 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8014
8015 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8016 }
8017
8018 return -EINVAL;
d6dc1a38
JO		 8019}
8020
29cbe68c
JB		 8021static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8022{
8023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8024 struct net_device *dev = info->user_ptr[1];
8025 struct mesh_config cfg;
c80d545d 8026 struct mesh_setup setup;
29cbe68c
JB		 8027 int err;
8028
8029 /* start with default */
8030 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8031 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8032
24bdd9f4 8033 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8034 /* and parse parameters if given */
24bdd9f4 8035 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8036 if (err)
8037 return err;
8038 }
8039
8040 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8041 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8042 return -EINVAL;
8043
c80d545d
JC		 8044 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8045 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8046
4bb62344
CYY		 8047 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8048 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8049 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8050 return -EINVAL;
8051
9bdbf04d
MP		 8052 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8053 setup.beacon_interval =
8054 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8055 if (setup.beacon_interval < 10 ||
8056 setup.beacon_interval > 10000)
8057 return -EINVAL;
8058 }
8059
8060 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8061 setup.dtim_period =
8062 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8063 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8064 return -EINVAL;
8065 }
8066
c80d545d
JC		 8067 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8068 /* parse additional setup parameters if given */
8069 err = nl80211_parse_mesh_setup(info, &setup);
8070 if (err)
8071 return err;
8072 }
8073
d37bb18a
TP		 8074 if (setup.user_mpm)
8075 cfg.auto_open_plinks = false;
8076
cc1d2806 8077 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8078 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8079 if (err)
8080 return err;
cc1d2806
JB		 8081 } else {
8082 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8083 setup.chandef.chan = NULL;
cc1d2806
JB		 8084 }
8085
ffb3cf30
AN		 8086 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8087 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8088 int n_rates =
8089 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8090 struct ieee80211_supported_band *sband;
8091
8092 if (!setup.chandef.chan)
8093 return -EINVAL;
8094
8095 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8096
8097 err = ieee80211_get_ratemask(sband, rates, n_rates,
8098 &setup.basic_rates);
8099 if (err)
8100 return err;
8101 }
8102
c80d545d 8103 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8104}
8105
8106static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8107{
8108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8109 struct net_device *dev = info->user_ptr[1];
8110
8111 return cfg80211_leave_mesh(rdev, dev);
8112}
8113
dfb89c56 8114#ifdef CONFIG_PM
bb92d199
AK		 8115static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8116 struct cfg80211_registered_device *rdev)
8117{
6abb9cb9 8118 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8119 struct nlattr *nl_pats, *nl_pat;
8120 int i, pat_len;
8121
6abb9cb9 8122 if (!wowlan->n_patterns)
bb92d199
AK		 8123 return 0;
8124
8125 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8126 if (!nl_pats)
8127 return -ENOBUFS;
8128
6abb9cb9 8129 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8130 nl_pat = nla_nest_start(msg, i + 1);
8131 if (!nl_pat)
8132 return -ENOBUFS;
6abb9cb9 8133 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8134 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8135 wowlan->patterns[i].mask) ||
50ac6607
AK		 8136 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8137 wowlan->patterns[i].pattern) ||
8138 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8139 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8140 return -ENOBUFS;
8141 nla_nest_end(msg, nl_pat);
8142 }
8143 nla_nest_end(msg, nl_pats);
8144
8145 return 0;
8146}
8147
2a0e047e
JB		 8148static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8149 struct cfg80211_wowlan_tcp *tcp)
8150{
8151 struct nlattr *nl_tcp;
8152
8153 if (!tcp)
8154 return 0;
8155
8156 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8157 if (!nl_tcp)
8158 return -ENOBUFS;
8159
8160 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8161 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8162 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8163 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8164 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8165 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8166 tcp->payload_len, tcp->payload) ||
8167 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8168 tcp->data_interval) ||
8169 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8170 tcp->wake_len, tcp->wake_data) ||
8171 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8172 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8173 return -ENOBUFS;
8174
8175 if (tcp->payload_seq.len &&
8176 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8177 sizeof(tcp->payload_seq), &tcp->payload_seq))
8178 return -ENOBUFS;
8179
8180 if (tcp->payload_tok.len &&
8181 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8182 sizeof(tcp->payload_tok) + tcp->tokens_size,
8183 &tcp->payload_tok))
8184 return -ENOBUFS;
8185
e248ad30
JB		 8186 nla_nest_end(msg, nl_tcp);
8187
2a0e047e
JB		 8188 return 0;
8189}
8190
ff1b6e69
JB		 8191static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8192{
8193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8194 struct sk_buff *msg;
8195 void *hdr;
2a0e047e 8196 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8197
964dc9e2 8198 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8199 return -EOPNOTSUPP;
8200
6abb9cb9 8201 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8202 /* adjust size to have room for all the data */
6abb9cb9
JB		 8203 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8204 rdev->wiphy.wowlan_config->tcp->payload_len +
8205 rdev->wiphy.wowlan_config->tcp->wake_len +
8206 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8207 }
8208
8209 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8210 if (!msg)
8211 return -ENOMEM;
8212
15e47304 8213 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8214 NL80211_CMD_GET_WOWLAN);
8215 if (!hdr)
8216 goto nla_put_failure;
8217
6abb9cb9 8218 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8219 struct nlattr *nl_wowlan;
8220
8221 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8222 if (!nl_wowlan)
8223 goto nla_put_failure;
8224
6abb9cb9 8225 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8226 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8227 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8228 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8229 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8230 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8231 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8232 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8233 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8234 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8235 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8236 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8237 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8238 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8239 goto nla_put_failure;
2a0e047e 8240
bb92d199
AK		 8241 if (nl80211_send_wowlan_patterns(msg, rdev))
8242 goto nla_put_failure;
2a0e047e 8243
6abb9cb9
JB		 8244 if (nl80211_send_wowlan_tcp(msg,
8245 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8246 goto nla_put_failure;
8247
ff1b6e69
JB		 8248 nla_nest_end(msg, nl_wowlan);
8249 }
8250
8251 genlmsg_end(msg, hdr);
8252 return genlmsg_reply(msg, info);
8253
8254nla_put_failure:
8255 nlmsg_free(msg);
8256 return -ENOBUFS;
8257}
8258
2a0e047e
JB		 8259static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8260 struct nlattr *attr,
8261 struct cfg80211_wowlan *trig)
8262{
8263 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8264 struct cfg80211_wowlan_tcp *cfg;
8265 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8266 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8267 u32 size;
8268 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8269 int err, port;
8270
964dc9e2 8271 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8272 return -EINVAL;
8273
8274 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8275 nla_data(attr), nla_len(attr),
8276 nl80211_wowlan_tcp_policy);
8277 if (err)
8278 return err;
8279
8280 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8281 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8282 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8283 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8284 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8285 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8286 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8287 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8288 return -EINVAL;
8289
8290 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8291 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8292 return -EINVAL;
8293
8294 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8295 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8296 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8297 return -EINVAL;
8298
8299 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8300 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8301 return -EINVAL;
8302
8303 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8304 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8305 return -EINVAL;
8306
8307 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8308 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8309
8310 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8311 tokens_size = tokln - sizeof(*tok);
8312
8313 if (!tok->len || tokens_size % tok->len)
8314 return -EINVAL;
964dc9e2 8315 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8316 return -EINVAL;
964dc9e2 8317 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8318 return -EINVAL;
964dc9e2 8319 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8320 return -EINVAL;
964dc9e2 8321 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8322 return -EINVAL;
8323 if (tok->offset + tok->len > data_size)
8324 return -EINVAL;
8325 }
8326
8327 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8328 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8329 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8330 return -EINVAL;
8331 if (seq->len == 0 || seq->len > 4)
8332 return -EINVAL;
8333 if (seq->len + seq->offset > data_size)
8334 return -EINVAL;
8335 }
8336
8337 size = sizeof(*cfg);
8338 size += data_size;
8339 size += wake_size + wake_mask_size;
8340 size += tokens_size;
8341
8342 cfg = kzalloc(size, GFP_KERNEL);
8343 if (!cfg)
8344 return -ENOMEM;
8345 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8346 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8347 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8348 ETH_ALEN);
8349 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8350 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8351 else
8352 port = 0;
8353#ifdef CONFIG_INET
8354 /* allocate a socket and port for it and use it */
8355 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8356 IPPROTO_TCP, &cfg->sock, 1);
8357 if (err) {
8358 kfree(cfg);
8359 return err;
8360 }
8361 if (inet_csk_get_port(cfg->sock->sk, port)) {
8362 sock_release(cfg->sock);
8363 kfree(cfg);
8364 return -EADDRINUSE;
8365 }
8366 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8367#else
8368 if (!port) {
8369 kfree(cfg);
8370 return -EINVAL;
8371 }
8372 cfg->src_port = port;
8373#endif
8374
8375 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8376 cfg->payload_len = data_size;
8377 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8378 memcpy((void *)cfg->payload,
8379 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8380 data_size);
8381 if (seq)
8382 cfg->payload_seq = *seq;
8383 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8384 cfg->wake_len = wake_size;
8385 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8386 memcpy((void *)cfg->wake_data,
8387 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8388 wake_size);
8389 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8390 data_size + wake_size;
8391 memcpy((void *)cfg->wake_mask,
8392 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8393 wake_mask_size);
8394 if (tok) {
8395 cfg->tokens_size = tokens_size;
8396 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8397 }
8398
8399 trig->tcp = cfg;
8400
8401 return 0;
8402}
8403
ff1b6e69
JB		 8404static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8405{
8406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8407 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8408 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8409 struct cfg80211_wowlan *ntrig;
964dc9e2 8410 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8411 int err, i;
6abb9cb9 8412 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8413
964dc9e2 8414 if (!wowlan)
ff1b6e69
JB		 8415 return -EOPNOTSUPP;
8416
ae33bd81
JB		 8417 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8418 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8419 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8420 goto set_wakeup;
8421 }
ff1b6e69
JB		 8422
8423 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8424 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8425 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8426 nl80211_wowlan_policy);
8427 if (err)
8428 return err;
8429
8430 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8431 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8432 return -EINVAL;
8433 new_triggers.any = true;
8434 }
8435
8436 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8437 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8438 return -EINVAL;
8439 new_triggers.disconnect = true;
8440 }
8441
8442 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8443 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8444 return -EINVAL;
8445 new_triggers.magic_pkt = true;
8446 }
8447
77dbbb13
JB		 8448 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8449 return -EINVAL;
8450
8451 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8452 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8453 return -EINVAL;
8454 new_triggers.gtk_rekey_failure = true;
8455 }
8456
8457 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8458 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8459 return -EINVAL;
8460 new_triggers.eap_identity_req = true;
8461 }
8462
8463 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8464 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8465 return -EINVAL;
8466 new_triggers.four_way_handshake = true;
8467 }
8468
8469 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8470 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8471 return -EINVAL;
8472 new_triggers.rfkill_release = true;
8473 }
8474
ff1b6e69
JB		 8475 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8476 struct nlattr *pat;
8477 int n_patterns = 0;
bb92d199 8478 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8479 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8480
8481 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8482 rem)
8483 n_patterns++;
8484 if (n_patterns > wowlan->n_patterns)
8485 return -EINVAL;
8486
8487 new_triggers.patterns = kcalloc(n_patterns,
8488 sizeof(new_triggers.patterns[0]),
8489 GFP_KERNEL);
8490 if (!new_triggers.patterns)
8491 return -ENOMEM;
8492
8493 new_triggers.n_patterns = n_patterns;
8494 i = 0;
8495
8496 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8497 rem) {
50ac6607
AK		 8498 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8499 nla_len(pat), NULL);
ff1b6e69 8500 err = -EINVAL;
50ac6607
AK		 8501 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8502 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8503 goto error;
50ac6607 8504 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8505 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8506 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8507 goto error;
8508 if (pat_len > wowlan->pattern_max_len ||
8509 pat_len < wowlan->pattern_min_len)
8510 goto error;
8511
50ac6607 8512 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8513 pkt_offset = 0;
8514 else
8515 pkt_offset = nla_get_u32(
50ac6607 8516 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8517 if (pkt_offset > wowlan->max_pkt_offset)
8518 goto error;
8519 new_triggers.patterns[i].pkt_offset = pkt_offset;
8520
ff1b6e69
JB		 8521 new_triggers.patterns[i].mask =
8522 kmalloc(mask_len + pat_len, GFP_KERNEL);
8523 if (!new_triggers.patterns[i].mask) {
8524 err = -ENOMEM;
8525 goto error;
8526 }
8527 new_triggers.patterns[i].pattern =
8528 new_triggers.patterns[i].mask + mask_len;
8529 memcpy(new_triggers.patterns[i].mask,
50ac6607 8530 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8531 mask_len);
8532 new_triggers.patterns[i].pattern_len = pat_len;
8533 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8534 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8535 pat_len);
8536 i++;
8537 }
8538 }
8539
2a0e047e
JB		 8540 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8541 err = nl80211_parse_wowlan_tcp(
8542 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8543 &new_triggers);
8544 if (err)
8545 goto error;
8546 }
8547
ae33bd81
JB		 8548 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8549 if (!ntrig) {
8550 err = -ENOMEM;
8551 goto error;
ff1b6e69 8552 }
ae33bd81 8553 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8554 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8555
ae33bd81 8556 set_wakeup:
6abb9cb9
JB		 8557 if (rdev->ops->set_wakeup &&
8558 prev_enabled != !!rdev->wiphy.wowlan_config)
8559 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8560
ff1b6e69
JB		 8561 return 0;
8562 error:
8563 for (i = 0; i < new_triggers.n_patterns; i++)
8564 kfree(new_triggers.patterns[i].mask);
8565 kfree(new_triggers.patterns);
2a0e047e
JB		 8566 if (new_triggers.tcp && new_triggers.tcp->sock)
8567 sock_release(new_triggers.tcp->sock);
8568 kfree(new_triggers.tcp);
ff1b6e69
JB		 8569 return err;
8570}
dfb89c56 8571#endif
ff1b6e69 8572
be29b99a
AK		 8573static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8574 struct cfg80211_registered_device *rdev)
8575{
8576 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8577 int i, j, pat_len;
8578 struct cfg80211_coalesce_rules *rule;
8579
8580 if (!rdev->coalesce->n_rules)
8581 return 0;
8582
8583 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8584 if (!nl_rules)
8585 return -ENOBUFS;
8586
8587 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8588 nl_rule = nla_nest_start(msg, i + 1);
8589 if (!nl_rule)
8590 return -ENOBUFS;
8591
8592 rule = &rdev->coalesce->rules[i];
8593 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8594 rule->delay))
8595 return -ENOBUFS;
8596
8597 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8598 rule->condition))
8599 return -ENOBUFS;
8600
8601 nl_pats = nla_nest_start(msg,
8602 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8603 if (!nl_pats)
8604 return -ENOBUFS;
8605
8606 for (j = 0; j < rule->n_patterns; j++) {
8607 nl_pat = nla_nest_start(msg, j + 1);
8608 if (!nl_pat)
8609 return -ENOBUFS;
8610 pat_len = rule->patterns[j].pattern_len;
8611 if (nla_put(msg, NL80211_PKTPAT_MASK,
8612 DIV_ROUND_UP(pat_len, 8),
8613 rule->patterns[j].mask) ||
8614 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8615 rule->patterns[j].pattern) ||
8616 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8617 rule->patterns[j].pkt_offset))
8618 return -ENOBUFS;
8619 nla_nest_end(msg, nl_pat);
8620 }
8621 nla_nest_end(msg, nl_pats);
8622 nla_nest_end(msg, nl_rule);
8623 }
8624 nla_nest_end(msg, nl_rules);
8625
8626 return 0;
8627}
8628
8629static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8630{
8631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8632 struct sk_buff *msg;
8633 void *hdr;
8634
8635 if (!rdev->wiphy.coalesce)
8636 return -EOPNOTSUPP;
8637
8638 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8639 if (!msg)
8640 return -ENOMEM;
8641
8642 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8643 NL80211_CMD_GET_COALESCE);
8644 if (!hdr)
8645 goto nla_put_failure;
8646
8647 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8648 goto nla_put_failure;
8649
8650 genlmsg_end(msg, hdr);
8651 return genlmsg_reply(msg, info);
8652
8653nla_put_failure:
8654 nlmsg_free(msg);
8655 return -ENOBUFS;
8656}
8657
8658void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8659{
8660 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8661 int i, j;
8662 struct cfg80211_coalesce_rules *rule;
8663
8664 if (!coalesce)
8665 return;
8666
8667 for (i = 0; i < coalesce->n_rules; i++) {
8668 rule = &coalesce->rules[i];
8669 for (j = 0; j < rule->n_patterns; j++)
8670 kfree(rule->patterns[j].mask);
8671 kfree(rule->patterns);
8672 }
8673 kfree(coalesce->rules);
8674 kfree(coalesce);
8675 rdev->coalesce = NULL;
8676}
8677
8678static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8679 struct nlattr *rule,
8680 struct cfg80211_coalesce_rules *new_rule)
8681{
8682 int err, i;
8683 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8684 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8685 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8686 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8687
8688 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8689 nla_len(rule), nl80211_coalesce_policy);
8690 if (err)
8691 return err;
8692
8693 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8694 new_rule->delay =
8695 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8696 if (new_rule->delay > coalesce->max_delay)
8697 return -EINVAL;
8698
8699 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8700 new_rule->condition =
8701 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8702 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8703 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8704 return -EINVAL;
8705
8706 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8707 return -EINVAL;
8708
8709 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8710 rem)
8711 n_patterns++;
8712 if (n_patterns > coalesce->n_patterns)
8713 return -EINVAL;
8714
8715 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8716 GFP_KERNEL);
8717 if (!new_rule->patterns)
8718 return -ENOMEM;
8719
8720 new_rule->n_patterns = n_patterns;
8721 i = 0;
8722
8723 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8724 rem) {
8725 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8726 nla_len(pat), NULL);
8727 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8728 !pat_tb[NL80211_PKTPAT_PATTERN])
8729 return -EINVAL;
8730 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8731 mask_len = DIV_ROUND_UP(pat_len, 8);
8732 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8733 return -EINVAL;
8734 if (pat_len > coalesce->pattern_max_len ||
8735 pat_len < coalesce->pattern_min_len)
8736 return -EINVAL;
8737
8738 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8739 pkt_offset = 0;
8740 else
8741 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8742 if (pkt_offset > coalesce->max_pkt_offset)
8743 return -EINVAL;
8744 new_rule->patterns[i].pkt_offset = pkt_offset;
8745
8746 new_rule->patterns[i].mask =
8747 kmalloc(mask_len + pat_len, GFP_KERNEL);
8748 if (!new_rule->patterns[i].mask)
8749 return -ENOMEM;
8750 new_rule->patterns[i].pattern =
8751 new_rule->patterns[i].mask + mask_len;
8752 memcpy(new_rule->patterns[i].mask,
8753 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8754 new_rule->patterns[i].pattern_len = pat_len;
8755 memcpy(new_rule->patterns[i].pattern,
8756 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8757 i++;
8758 }
8759
8760 return 0;
8761}
8762
8763static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8764{
8765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8766 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8767 struct cfg80211_coalesce new_coalesce = {};
8768 struct cfg80211_coalesce *n_coalesce;
8769 int err, rem_rule, n_rules = 0, i, j;
8770 struct nlattr *rule;
8771 struct cfg80211_coalesce_rules *tmp_rule;
8772
8773 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8774 return -EOPNOTSUPP;
8775
8776 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8777 cfg80211_rdev_free_coalesce(rdev);
8778 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8779 return 0;
8780 }
8781
8782 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8783 rem_rule)
8784 n_rules++;
8785 if (n_rules > coalesce->n_rules)
8786 return -EINVAL;
8787
8788 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8789 GFP_KERNEL);
8790 if (!new_coalesce.rules)
8791 return -ENOMEM;
8792
8793 new_coalesce.n_rules = n_rules;
8794 i = 0;
8795
8796 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8797 rem_rule) {
8798 err = nl80211_parse_coalesce_rule(rdev, rule,
8799 &new_coalesce.rules[i]);
8800 if (err)
8801 goto error;
8802
8803 i++;
8804 }
8805
8806 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8807 if (err)
8808 goto error;
8809
8810 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8811 if (!n_coalesce) {
8812 err = -ENOMEM;
8813 goto error;
8814 }
8815 cfg80211_rdev_free_coalesce(rdev);
8816 rdev->coalesce = n_coalesce;
8817
8818 return 0;
8819error:
8820 for (i = 0; i < new_coalesce.n_rules; i++) {
8821 tmp_rule = &new_coalesce.rules[i];
8822 for (j = 0; j < tmp_rule->n_patterns; j++)
8823 kfree(tmp_rule->patterns[j].mask);
8824 kfree(tmp_rule->patterns);
8825 }
8826 kfree(new_coalesce.rules);
8827
8828 return err;
8829}
8830
e5497d76
JB		 8831static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8832{
8833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8834 struct net_device *dev = info->user_ptr[1];
8835 struct wireless_dev *wdev = dev->ieee80211_ptr;
8836 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8837 struct cfg80211_gtk_rekey_data rekey_data;
8838 int err;
8839
8840 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8841 return -EINVAL;
8842
8843 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8844 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8845 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8846 nl80211_rekey_policy);
8847 if (err)
8848 return err;
8849
8850 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8851 return -ERANGE;
8852 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8853 return -ERANGE;
8854 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8855 return -ERANGE;
8856
8857 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8858 NL80211_KEK_LEN);
8859 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8860 NL80211_KCK_LEN);
8861 memcpy(rekey_data.replay_ctr,
8862 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8863 NL80211_REPLAY_CTR_LEN);
8864
8865 wdev_lock(wdev);
8866 if (!wdev->current_bss) {
8867 err = -ENOTCONN;
8868 goto out;
8869 }
8870
8871 if (!rdev->ops->set_rekey_data) {
8872 err = -EOPNOTSUPP;
8873 goto out;
8874 }
8875
e35e4d28 8876 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8877 out:
8878 wdev_unlock(wdev);
8879 return err;
8880}
8881
28946da7
JB		 8882static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8883 struct genl_info *info)
8884{
8885 struct net_device *dev = info->user_ptr[1];
8886 struct wireless_dev *wdev = dev->ieee80211_ptr;
8887
8888 if (wdev->iftype != NL80211_IFTYPE_AP &&
8889 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8890 return -EINVAL;
8891
15e47304 8892 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8893 return -EBUSY;
8894
15e47304 8895 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8896 return 0;
8897}
8898
7f6cf311
JB		 8899static int nl80211_probe_client(struct sk_buff *skb,
8900 struct genl_info *info)
8901{
8902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8903 struct net_device *dev = info->user_ptr[1];
8904 struct wireless_dev *wdev = dev->ieee80211_ptr;
8905 struct sk_buff *msg;
8906 void *hdr;
8907 const u8 *addr;
8908 u64 cookie;
8909 int err;
8910
8911 if (wdev->iftype != NL80211_IFTYPE_AP &&
8912 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8913 return -EOPNOTSUPP;
8914
8915 if (!info->attrs[NL80211_ATTR_MAC])
8916 return -EINVAL;
8917
8918 if (!rdev->ops->probe_client)
8919 return -EOPNOTSUPP;
8920
8921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8922 if (!msg)
8923 return -ENOMEM;
8924
15e47304 8925 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8926 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8927 if (!hdr) {
8928 err = -ENOBUFS;
7f6cf311
JB		 8929 goto free_msg;
8930 }
8931
8932 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8933
e35e4d28 8934 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8935 if (err)
8936 goto free_msg;
8937
9360ffd1
DM		 8938 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8939 goto nla_put_failure;
7f6cf311
JB		 8940
8941 genlmsg_end(msg, hdr);
8942
8943 return genlmsg_reply(msg, info);
8944
8945 nla_put_failure:
8946 err = -ENOBUFS;
8947 free_msg:
8948 nlmsg_free(msg);
8949 return err;
8950}
8951
5e760230
JB		 8952static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8953{
8954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8955 struct cfg80211_beacon_registration *reg, *nreg;
8956 int rv;
5e760230
JB		 8957
8958 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8959 return -EOPNOTSUPP;
8960
37c73b5f
BG		 8961 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8962 if (!nreg)
8963 return -ENOMEM;
8964
8965 /* First, check if already registered. */
8966 spin_lock_bh(&rdev->beacon_registrations_lock);
8967 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8968 if (reg->nlportid == info->snd_portid) {
8969 rv = -EALREADY;
8970 goto out_err;
8971 }
8972 }
8973 /* Add it to the list */
8974 nreg->nlportid = info->snd_portid;
8975 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8976
37c73b5f 8977 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8978
8979 return 0;
37c73b5f
BG		 8980out_err:
8981 spin_unlock_bh(&rdev->beacon_registrations_lock);
8982 kfree(nreg);
8983 return rv;
5e760230
JB		 8984}
8985
98104fde
JB		 8986static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8987{
8988 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8989 struct wireless_dev *wdev = info->user_ptr[1];
8990 int err;
8991
8992 if (!rdev->ops->start_p2p_device)
8993 return -EOPNOTSUPP;
8994
8995 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8996 return -EOPNOTSUPP;
8997
8998 if (wdev->p2p_started)
8999 return 0;
9000
b6a55015
LC		 9001 if (rfkill_blocked(rdev->rfkill))
9002 return -ERFKILL;
98104fde 9003
eeb126e9 9004 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9005 if (err)
9006 return err;
9007
9008 wdev->p2p_started = true;
98104fde 9009 rdev->opencount++;
98104fde
JB		 9010
9011 return 0;
9012}
9013
9014static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9015{
9016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9017 struct wireless_dev *wdev = info->user_ptr[1];
9018
9019 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9020 return -EOPNOTSUPP;
9021
9022 if (!rdev->ops->stop_p2p_device)
9023 return -EOPNOTSUPP;
9024
f9f47529 9025 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9026
9027 return 0;
9028}
9029
3713b4e3
JB		 9030static int nl80211_get_protocol_features(struct sk_buff *skb,
9031 struct genl_info *info)
9032{
9033 void *hdr;
9034 struct sk_buff *msg;
9035
9036 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9037 if (!msg)
9038 return -ENOMEM;
9039
9040 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9041 NL80211_CMD_GET_PROTOCOL_FEATURES);
9042 if (!hdr)
9043 goto nla_put_failure;
9044
9045 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9046 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9047 goto nla_put_failure;
9048
9049 genlmsg_end(msg, hdr);
9050 return genlmsg_reply(msg, info);
9051
9052 nla_put_failure:
9053 kfree_skb(msg);
9054 return -ENOBUFS;
9055}
9056
355199e0
JM		 9057static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9058{
9059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9060 struct cfg80211_update_ft_ies_params ft_params;
9061 struct net_device *dev = info->user_ptr[1];
9062
9063 if (!rdev->ops->update_ft_ies)
9064 return -EOPNOTSUPP;
9065
9066 if (!info->attrs[NL80211_ATTR_MDID] ||
9067 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9068 return -EINVAL;
9069
9070 memset(&ft_params, 0, sizeof(ft_params));
9071 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9072 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9073 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9074
9075 return rdev_update_ft_ies(rdev, dev, &ft_params);
9076}
9077
5de17984
AS		 9078static int nl80211_crit_protocol_start(struct sk_buff *skb,
9079 struct genl_info *info)
9080{
9081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9082 struct wireless_dev *wdev = info->user_ptr[1];
9083 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9084 u16 duration;
9085 int ret;
9086
9087 if (!rdev->ops->crit_proto_start)
9088 return -EOPNOTSUPP;
9089
9090 if (WARN_ON(!rdev->ops->crit_proto_stop))
9091 return -EINVAL;
9092
9093 if (rdev->crit_proto_nlportid)
9094 return -EBUSY;
9095
9096 /* determine protocol if provided */
9097 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9098 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9099
9100 if (proto >= NUM_NL80211_CRIT_PROTO)
9101 return -EINVAL;
9102
9103 /* timeout must be provided */
9104 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9105 return -EINVAL;
9106
9107 duration =
9108 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9109
9110 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9111 return -ERANGE;
9112
9113 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9114 if (!ret)
9115 rdev->crit_proto_nlportid = info->snd_portid;
9116
9117 return ret;
9118}
9119
9120static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9121 struct genl_info *info)
9122{
9123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9124 struct wireless_dev *wdev = info->user_ptr[1];
9125
9126 if (!rdev->ops->crit_proto_stop)
9127 return -EOPNOTSUPP;
9128
9129 if (rdev->crit_proto_nlportid) {
9130 rdev->crit_proto_nlportid = 0;
9131 rdev_crit_proto_stop(rdev, wdev);
9132 }
9133 return 0;
9134}
9135
ad7e718c
JB		 9136static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9137{
9138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9139 struct wireless_dev *wdev =
9140 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9141 int i, err;
9142 u32 vid, subcmd;
9143
9144 if (!rdev->wiphy.vendor_commands)
9145 return -EOPNOTSUPP;
9146
9147 if (IS_ERR(wdev)) {
9148 err = PTR_ERR(wdev);
9149 if (err != -EINVAL)
9150 return err;
9151 wdev = NULL;
9152 } else if (wdev->wiphy != &rdev->wiphy) {
9153 return -EINVAL;
9154 }
9155
9156 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9157 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9158 return -EINVAL;
9159
9160 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9161 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9162 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9163 const struct wiphy_vendor_command *vcmd;
9164 void *data = NULL;
9165 int len = 0;
9166
9167 vcmd = &rdev->wiphy.vendor_commands[i];
9168
9169 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9170 continue;
9171
9172 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9173 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9174 if (!wdev)
9175 return -EINVAL;
9176 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9177 !wdev->netdev)
9178 return -EINVAL;
9179
9180 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9181 if (wdev->netdev &&
9182 !netif_running(wdev->netdev))
9183 return -ENETDOWN;
9184 if (!wdev->netdev && !wdev->p2p_started)
9185 return -ENETDOWN;
9186 }
9187 } else {
9188 wdev = NULL;
9189 }
9190
9191 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9192 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9193 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9194 }
9195
9196 rdev->cur_cmd_info = info;
9197 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9198 data, len);
9199 rdev->cur_cmd_info = NULL;
9200 return err;
9201 }
9202
9203 return -EOPNOTSUPP;
9204}
9205
9206struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9207 enum nl80211_commands cmd,
9208 enum nl80211_attrs attr,
9209 int approxlen)
9210{
f26cbf40 9211 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9212
9213 if (WARN_ON(!rdev->cur_cmd_info))
9214 return NULL;
9215
9216 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9217 rdev->cur_cmd_info->snd_portid,
9218 rdev->cur_cmd_info->snd_seq,
567ffc35 9219 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9220}
9221EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9222
9223int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9224{
9225 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9226 void *hdr = ((void **)skb->cb)[1];
9227 struct nlattr *data = ((void **)skb->cb)[2];
9228
9229 if (WARN_ON(!rdev->cur_cmd_info)) {
9230 kfree_skb(skb);
9231 return -EINVAL;
9232 }
9233
9234 nla_nest_end(skb, data);
9235 genlmsg_end(skb, hdr);
9236 return genlmsg_reply(skb, rdev->cur_cmd_info);
9237}
9238EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9239
9240
fa9ffc74
KP		 9241static int nl80211_set_qos_map(struct sk_buff *skb,
9242 struct genl_info *info)
9243{
9244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9245 struct cfg80211_qos_map *qos_map = NULL;
9246 struct net_device *dev = info->user_ptr[1];
9247 u8 *pos, len, num_des, des_len, des;
9248 int ret;
9249
9250 if (!rdev->ops->set_qos_map)
9251 return -EOPNOTSUPP;
9252
9253 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9254 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9255 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9256
9257 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9258 len > IEEE80211_QOS_MAP_LEN_MAX)
9259 return -EINVAL;
9260
9261 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9262 if (!qos_map)
9263 return -ENOMEM;
9264
9265 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9266 if (num_des) {
9267 des_len = num_des *
9268 sizeof(struct cfg80211_dscp_exception);
9269 memcpy(qos_map->dscp_exception, pos, des_len);
9270 qos_map->num_des = num_des;
9271 for (des = 0; des < num_des; des++) {
9272 if (qos_map->dscp_exception[des].up > 7) {
9273 kfree(qos_map);
9274 return -EINVAL;
9275 }
9276 }
9277 pos += des_len;
9278 }
9279 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9280 }
9281
9282 wdev_lock(dev->ieee80211_ptr);
9283 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9284 if (!ret)
9285 ret = rdev_set_qos_map(rdev, dev, qos_map);
9286 wdev_unlock(dev->ieee80211_ptr);
9287
9288 kfree(qos_map);
9289 return ret;
9290}
9291
4c476991
JB		 9292#define NL80211_FLAG_NEED_WIPHY 0x01
9293#define NL80211_FLAG_NEED_NETDEV 0x02
9294#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9295#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9296#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9297 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9298#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9299/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9300#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9301 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9302
f84f771d 9303static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9304 struct genl_info *info)
9305{
9306 struct cfg80211_registered_device *rdev;
89a54e48 9307 struct wireless_dev *wdev;
4c476991 9308 struct net_device *dev;
4c476991
JB		 9309 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9310
9311 if (rtnl)
9312 rtnl_lock();
9313
9314 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9315 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9316 if (IS_ERR(rdev)) {
9317 if (rtnl)
9318 rtnl_unlock();
9319 return PTR_ERR(rdev);
9320 }
9321 info->user_ptr[0] = rdev;
1bf614ef
JB		 9322 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9323 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9324 ASSERT_RTNL();
9325
89a54e48
JB		 9326 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9327 info->attrs);
9328 if (IS_ERR(wdev)) {
4c476991
JB		 9329 if (rtnl)
9330 rtnl_unlock();
89a54e48 9331 return PTR_ERR(wdev);
4c476991 9332 }
89a54e48 9333
89a54e48 9334 dev = wdev->netdev;
f26cbf40 9335 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9336
1bf614ef
JB		 9337 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9338 if (!dev) {
1bf614ef
JB		 9339 if (rtnl)
9340 rtnl_unlock();
9341 return -EINVAL;
9342 }
9343
9344 info->user_ptr[1] = dev;
9345 } else {
9346 info->user_ptr[1] = wdev;
41265714 9347 }
1bf614ef
JB		 9348
9349 if (dev) {
9350 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9351 !netif_running(dev)) {
1bf614ef
JB		 9352 if (rtnl)
9353 rtnl_unlock();
9354 return -ENETDOWN;
9355 }
9356
9357 dev_hold(dev);
98104fde
JB		 9358 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9359 if (!wdev->p2p_started) {
98104fde
JB		 9360 if (rtnl)
9361 rtnl_unlock();
9362 return -ENETDOWN;
9363 }
41265714 9364 }
89a54e48 9365
4c476991 9366 info->user_ptr[0] = rdev;
4c476991
JB		 9367 }
9368
9369 return 0;
9370}
9371
f84f771d 9372static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9373 struct genl_info *info)
9374{
1bf614ef
JB		 9375 if (info->user_ptr[1]) {
9376 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9377 struct wireless_dev *wdev = info->user_ptr[1];
9378
9379 if (wdev->netdev)
9380 dev_put(wdev->netdev);
9381 } else {
9382 dev_put(info->user_ptr[1]);
9383 }
9384 }
4c476991
JB		 9385 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9386 rtnl_unlock();
9387}
9388
4534de83 9389static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9390 {
9391 .cmd = NL80211_CMD_GET_WIPHY,
9392 .doit = nl80211_get_wiphy,
9393 .dumpit = nl80211_dump_wiphy,
86e8cf98 9394 .done = nl80211_dump_wiphy_done,
55682965
JB		 9395 .policy = nl80211_policy,
9396 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9397 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9398 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9399 },
9400 {
9401 .cmd = NL80211_CMD_SET_WIPHY,
9402 .doit = nl80211_set_wiphy,
9403 .policy = nl80211_policy,
9404 .flags = GENL_ADMIN_PERM,
4c476991 9405 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9406 },
9407 {
9408 .cmd = NL80211_CMD_GET_INTERFACE,
9409 .doit = nl80211_get_interface,
9410 .dumpit = nl80211_dump_interface,
9411 .policy = nl80211_policy,
9412 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9413 .internal_flags = NL80211_FLAG_NEED_WDEV |
9414 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9415 },
9416 {
9417 .cmd = NL80211_CMD_SET_INTERFACE,
9418 .doit = nl80211_set_interface,
9419 .policy = nl80211_policy,
9420 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9421 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9422 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9423 },
9424 {
9425 .cmd = NL80211_CMD_NEW_INTERFACE,
9426 .doit = nl80211_new_interface,
9427 .policy = nl80211_policy,
9428 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9429 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9430 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9431 },
9432 {
9433 .cmd = NL80211_CMD_DEL_INTERFACE,
9434 .doit = nl80211_del_interface,
9435 .policy = nl80211_policy,
41ade00f 9436 .flags = GENL_ADMIN_PERM,
84efbb84 9437 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9438 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9439 },
9440 {
9441 .cmd = NL80211_CMD_GET_KEY,
9442 .doit = nl80211_get_key,
9443 .policy = nl80211_policy,
9444 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9445 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9446 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9447 },
9448 {
9449 .cmd = NL80211_CMD_SET_KEY,
9450 .doit = nl80211_set_key,
9451 .policy = nl80211_policy,
9452 .flags = GENL_ADMIN_PERM,
41265714 9453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9454 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9455 },
9456 {
9457 .cmd = NL80211_CMD_NEW_KEY,
9458 .doit = nl80211_new_key,
9459 .policy = nl80211_policy,
9460 .flags = GENL_ADMIN_PERM,
41265714 9461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9462 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9463 },
9464 {
9465 .cmd = NL80211_CMD_DEL_KEY,
9466 .doit = nl80211_del_key,
9467 .policy = nl80211_policy,
55682965 9468 .flags = GENL_ADMIN_PERM,
41265714 9469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9470 NL80211_FLAG_NEED_RTNL,
55682965 9471 },
ed1b6cc7
JB		 9472 {
9473 .cmd = NL80211_CMD_SET_BEACON,
9474 .policy = nl80211_policy,
9475 .flags = GENL_ADMIN_PERM,
8860020e 9476 .doit = nl80211_set_beacon,
2b5f8b0b 9477 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9478 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9479 },
9480 {
8860020e 9481 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9482 .policy = nl80211_policy,
9483 .flags = GENL_ADMIN_PERM,
8860020e 9484 .doit = nl80211_start_ap,
2b5f8b0b 9485 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9486 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9487 },
9488 {
8860020e 9489 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9490 .policy = nl80211_policy,
9491 .flags = GENL_ADMIN_PERM,
8860020e 9492 .doit = nl80211_stop_ap,
2b5f8b0b 9493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9494 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9495 },
5727ef1b
JB		 9496 {
9497 .cmd = NL80211_CMD_GET_STATION,
9498 .doit = nl80211_get_station,
2ec600d6 9499 .dumpit = nl80211_dump_station,
5727ef1b 9500 .policy = nl80211_policy,
4c476991
JB		 9501 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9502 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9503 },
9504 {
9505 .cmd = NL80211_CMD_SET_STATION,
9506 .doit = nl80211_set_station,
9507 .policy = nl80211_policy,
9508 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9509 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9510 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9511 },
9512 {
9513 .cmd = NL80211_CMD_NEW_STATION,
9514 .doit = nl80211_new_station,
9515 .policy = nl80211_policy,
9516 .flags = GENL_ADMIN_PERM,
41265714 9517 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9518 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9519 },
9520 {
9521 .cmd = NL80211_CMD_DEL_STATION,
9522 .doit = nl80211_del_station,
9523 .policy = nl80211_policy,
2ec600d6 9524 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9525 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9526 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9527 },
9528 {
9529 .cmd = NL80211_CMD_GET_MPATH,
9530 .doit = nl80211_get_mpath,
9531 .dumpit = nl80211_dump_mpath,
9532 .policy = nl80211_policy,
9533 .flags = GENL_ADMIN_PERM,
41265714 9534 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9535 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9536 },
9537 {
9538 .cmd = NL80211_CMD_SET_MPATH,
9539 .doit = nl80211_set_mpath,
9540 .policy = nl80211_policy,
9541 .flags = GENL_ADMIN_PERM,
41265714 9542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9543 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9544 },
9545 {
9546 .cmd = NL80211_CMD_NEW_MPATH,
9547 .doit = nl80211_new_mpath,
9548 .policy = nl80211_policy,
9549 .flags = GENL_ADMIN_PERM,
41265714 9550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9551 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9552 },
9553 {
9554 .cmd = NL80211_CMD_DEL_MPATH,
9555 .doit = nl80211_del_mpath,
9556 .policy = nl80211_policy,
9f1ba906 9557 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9558 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9559 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9560 },
9561 {
9562 .cmd = NL80211_CMD_SET_BSS,
9563 .doit = nl80211_set_bss,
9564 .policy = nl80211_policy,
b2e1b302 9565 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9567 NL80211_FLAG_NEED_RTNL,
b2e1b302 9568 },
f130347c
LR		 9569 {
9570 .cmd = NL80211_CMD_GET_REG,
9571 .doit = nl80211_get_reg,
9572 .policy = nl80211_policy,
5fe231e8 9573 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9574 /* can be retrieved by unprivileged users */
9575 },
b2e1b302
LR		 9576 {
9577 .cmd = NL80211_CMD_SET_REG,
9578 .doit = nl80211_set_reg,
9579 .policy = nl80211_policy,
9580 .flags = GENL_ADMIN_PERM,
5fe231e8 9581 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9582 },
9583 {
9584 .cmd = NL80211_CMD_REQ_SET_REG,
9585 .doit = nl80211_req_set_reg,
9586 .policy = nl80211_policy,
93da9cc1 9587 .flags = GENL_ADMIN_PERM,
9588 },
9589 {
24bdd9f4
JC		 9590 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9591 .doit = nl80211_get_mesh_config,
93da9cc1 9592 .policy = nl80211_policy,
9593 /* can be retrieved by unprivileged users */
2b5f8b0b 9594 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9595 NL80211_FLAG_NEED_RTNL,
93da9cc1 9596 },
9597 {
24bdd9f4
JC		 9598 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9599 .doit = nl80211_update_mesh_config,
93da9cc1 9600 .policy = nl80211_policy,
9aed3cc1 9601 .flags = GENL_ADMIN_PERM,
29cbe68c 9602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9603 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9604 },
2a519311
JB		 9605 {
9606 .cmd = NL80211_CMD_TRIGGER_SCAN,
9607 .doit = nl80211_trigger_scan,
9608 .policy = nl80211_policy,
9609 .flags = GENL_ADMIN_PERM,
fd014284 9610 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9611 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9612 },
9613 {
9614 .cmd = NL80211_CMD_GET_SCAN,
9615 .policy = nl80211_policy,
9616 .dumpit = nl80211_dump_scan,
9617 },
807f8a8c
LC		 9618 {
9619 .cmd = NL80211_CMD_START_SCHED_SCAN,
9620 .doit = nl80211_start_sched_scan,
9621 .policy = nl80211_policy,
9622 .flags = GENL_ADMIN_PERM,
9623 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9624 NL80211_FLAG_NEED_RTNL,
9625 },
9626 {
9627 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9628 .doit = nl80211_stop_sched_scan,
9629 .policy = nl80211_policy,
9630 .flags = GENL_ADMIN_PERM,
9631 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9632 NL80211_FLAG_NEED_RTNL,
9633 },
636a5d36
JM		 9634 {
9635 .cmd = NL80211_CMD_AUTHENTICATE,
9636 .doit = nl80211_authenticate,
9637 .policy = nl80211_policy,
9638 .flags = GENL_ADMIN_PERM,
41265714 9639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9640 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9641 },
9642 {
9643 .cmd = NL80211_CMD_ASSOCIATE,
9644 .doit = nl80211_associate,
9645 .policy = nl80211_policy,
9646 .flags = GENL_ADMIN_PERM,
41265714 9647 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9648 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9649 },
9650 {
9651 .cmd = NL80211_CMD_DEAUTHENTICATE,
9652 .doit = nl80211_deauthenticate,
9653 .policy = nl80211_policy,
9654 .flags = GENL_ADMIN_PERM,
41265714 9655 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9656 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9657 },
9658 {
9659 .cmd = NL80211_CMD_DISASSOCIATE,
9660 .doit = nl80211_disassociate,
9661 .policy = nl80211_policy,
9662 .flags = GENL_ADMIN_PERM,
41265714 9663 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9664 NL80211_FLAG_NEED_RTNL,
636a5d36 9665 },
04a773ad
JB		 9666 {
9667 .cmd = NL80211_CMD_JOIN_IBSS,
9668 .doit = nl80211_join_ibss,
9669 .policy = nl80211_policy,
9670 .flags = GENL_ADMIN_PERM,
41265714 9671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9672 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9673 },
9674 {
9675 .cmd = NL80211_CMD_LEAVE_IBSS,
9676 .doit = nl80211_leave_ibss,
9677 .policy = nl80211_policy,
9678 .flags = GENL_ADMIN_PERM,
41265714 9679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9680 NL80211_FLAG_NEED_RTNL,
04a773ad 9681 },
aff89a9b
JB		 9682#ifdef CONFIG_NL80211_TESTMODE
9683 {
9684 .cmd = NL80211_CMD_TESTMODE,
9685 .doit = nl80211_testmode_do,
71063f0e 9686 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9687 .policy = nl80211_policy,
9688 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9689 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9690 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9691 },
9692#endif
b23aa676
SO		 9693 {
9694 .cmd = NL80211_CMD_CONNECT,
9695 .doit = nl80211_connect,
9696 .policy = nl80211_policy,
9697 .flags = GENL_ADMIN_PERM,
41265714 9698 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9699 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9700 },
9701 {
9702 .cmd = NL80211_CMD_DISCONNECT,
9703 .doit = nl80211_disconnect,
9704 .policy = nl80211_policy,
9705 .flags = GENL_ADMIN_PERM,
41265714 9706 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9707 NL80211_FLAG_NEED_RTNL,
b23aa676 9708 },
463d0183
JB		 9709 {
9710 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9711 .doit = nl80211_wiphy_netns,
9712 .policy = nl80211_policy,
9713 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9714 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9715 NL80211_FLAG_NEED_RTNL,
463d0183 9716 },
61fa713c
HS		 9717 {
9718 .cmd = NL80211_CMD_GET_SURVEY,
9719 .policy = nl80211_policy,
9720 .dumpit = nl80211_dump_survey,
9721 },
67fbb16b
SO		 9722 {
9723 .cmd = NL80211_CMD_SET_PMKSA,
9724 .doit = nl80211_setdel_pmksa,
9725 .policy = nl80211_policy,
9726 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9727 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9728 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9729 },
9730 {
9731 .cmd = NL80211_CMD_DEL_PMKSA,
9732 .doit = nl80211_setdel_pmksa,
9733 .policy = nl80211_policy,
9734 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9735 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9736 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9737 },
9738 {
9739 .cmd = NL80211_CMD_FLUSH_PMKSA,
9740 .doit = nl80211_flush_pmksa,
9741 .policy = nl80211_policy,
9742 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9743 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9744 NL80211_FLAG_NEED_RTNL,
67fbb16b 9745 },
9588bbd5
JM		 9746 {
9747 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9748 .doit = nl80211_remain_on_channel,
9749 .policy = nl80211_policy,
9750 .flags = GENL_ADMIN_PERM,
71bbc994 9751 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9752 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9753 },
9754 {
9755 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9756 .doit = nl80211_cancel_remain_on_channel,
9757 .policy = nl80211_policy,
9758 .flags = GENL_ADMIN_PERM,
71bbc994 9759 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9760 NL80211_FLAG_NEED_RTNL,
9588bbd5 9761 },
13ae75b1
JM		 9762 {
9763 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9764 .doit = nl80211_set_tx_bitrate_mask,
9765 .policy = nl80211_policy,
9766 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9767 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9768 NL80211_FLAG_NEED_RTNL,
13ae75b1 9769 },
026331c4 9770 {
2e161f78
JB		 9771 .cmd = NL80211_CMD_REGISTER_FRAME,
9772 .doit = nl80211_register_mgmt,
026331c4
JM		 9773 .policy = nl80211_policy,
9774 .flags = GENL_ADMIN_PERM,
71bbc994 9775 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9776 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9777 },
9778 {
2e161f78
JB		 9779 .cmd = NL80211_CMD_FRAME,
9780 .doit = nl80211_tx_mgmt,
026331c4 9781 .policy = nl80211_policy,
f7ca38df 9782 .flags = GENL_ADMIN_PERM,
71bbc994 9783 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9784 NL80211_FLAG_NEED_RTNL,
9785 },
9786 {
9787 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9788 .doit = nl80211_tx_mgmt_cancel_wait,
9789 .policy = nl80211_policy,
026331c4 9790 .flags = GENL_ADMIN_PERM,
71bbc994 9791 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9792 NL80211_FLAG_NEED_RTNL,
026331c4 9793 },
ffb9eb3d
KV		 9794 {
9795 .cmd = NL80211_CMD_SET_POWER_SAVE,
9796 .doit = nl80211_set_power_save,
9797 .policy = nl80211_policy,
9798 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9799 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9800 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9801 },
9802 {
9803 .cmd = NL80211_CMD_GET_POWER_SAVE,
9804 .doit = nl80211_get_power_save,
9805 .policy = nl80211_policy,
9806 /* can be retrieved by unprivileged users */
4c476991
JB		 9807 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9808 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9809 },
d6dc1a38
JO		 9810 {
9811 .cmd = NL80211_CMD_SET_CQM,
9812 .doit = nl80211_set_cqm,
9813 .policy = nl80211_policy,
9814 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9815 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9816 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9817 },
f444de05
JB		 9818 {
9819 .cmd = NL80211_CMD_SET_CHANNEL,
9820 .doit = nl80211_set_channel,
9821 .policy = nl80211_policy,
9822 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9823 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9824 NL80211_FLAG_NEED_RTNL,
f444de05 9825 },
e8347eba
BJ		 9826 {
9827 .cmd = NL80211_CMD_SET_WDS_PEER,
9828 .doit = nl80211_set_wds_peer,
9829 .policy = nl80211_policy,
9830 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9831 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9832 NL80211_FLAG_NEED_RTNL,
e8347eba 9833 },
29cbe68c
JB		 9834 {
9835 .cmd = NL80211_CMD_JOIN_MESH,
9836 .doit = nl80211_join_mesh,
9837 .policy = nl80211_policy,
9838 .flags = GENL_ADMIN_PERM,
9839 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9840 NL80211_FLAG_NEED_RTNL,
9841 },
9842 {
9843 .cmd = NL80211_CMD_LEAVE_MESH,
9844 .doit = nl80211_leave_mesh,
9845 .policy = nl80211_policy,
9846 .flags = GENL_ADMIN_PERM,
9847 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9848 NL80211_FLAG_NEED_RTNL,
9849 },
dfb89c56 9850#ifdef CONFIG_PM
ff1b6e69
JB		 9851 {
9852 .cmd = NL80211_CMD_GET_WOWLAN,
9853 .doit = nl80211_get_wowlan,
9854 .policy = nl80211_policy,
9855 /* can be retrieved by unprivileged users */
9856 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9857 NL80211_FLAG_NEED_RTNL,
9858 },
9859 {
9860 .cmd = NL80211_CMD_SET_WOWLAN,
9861 .doit = nl80211_set_wowlan,
9862 .policy = nl80211_policy,
9863 .flags = GENL_ADMIN_PERM,
9864 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9865 NL80211_FLAG_NEED_RTNL,
9866 },
dfb89c56 9867#endif
e5497d76
JB		 9868 {
9869 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9870 .doit = nl80211_set_rekey_data,
9871 .policy = nl80211_policy,
9872 .flags = GENL_ADMIN_PERM,
9873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9874 NL80211_FLAG_NEED_RTNL,
9875 },
109086ce
AN		 9876 {
9877 .cmd = NL80211_CMD_TDLS_MGMT,
9878 .doit = nl80211_tdls_mgmt,
9879 .policy = nl80211_policy,
9880 .flags = GENL_ADMIN_PERM,
9881 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9882 NL80211_FLAG_NEED_RTNL,
9883 },
9884 {
9885 .cmd = NL80211_CMD_TDLS_OPER,
9886 .doit = nl80211_tdls_oper,
9887 .policy = nl80211_policy,
9888 .flags = GENL_ADMIN_PERM,
9889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9890 NL80211_FLAG_NEED_RTNL,
9891 },
28946da7
JB		 9892 {
9893 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9894 .doit = nl80211_register_unexpected_frame,
9895 .policy = nl80211_policy,
9896 .flags = GENL_ADMIN_PERM,
9897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9898 NL80211_FLAG_NEED_RTNL,
9899 },
7f6cf311
JB		 9900 {
9901 .cmd = NL80211_CMD_PROBE_CLIENT,
9902 .doit = nl80211_probe_client,
9903 .policy = nl80211_policy,
9904 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9905 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9906 NL80211_FLAG_NEED_RTNL,
9907 },
5e760230
JB		 9908 {
9909 .cmd = NL80211_CMD_REGISTER_BEACONS,
9910 .doit = nl80211_register_beacons,
9911 .policy = nl80211_policy,
9912 .flags = GENL_ADMIN_PERM,
9913 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9914 NL80211_FLAG_NEED_RTNL,
9915 },
1d9d9213
SW		 9916 {
9917 .cmd = NL80211_CMD_SET_NOACK_MAP,
9918 .doit = nl80211_set_noack_map,
9919 .policy = nl80211_policy,
9920 .flags = GENL_ADMIN_PERM,
9921 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9922 NL80211_FLAG_NEED_RTNL,
9923 },
98104fde
JB		 9924 {
9925 .cmd = NL80211_CMD_START_P2P_DEVICE,
9926 .doit = nl80211_start_p2p_device,
9927 .policy = nl80211_policy,
9928 .flags = GENL_ADMIN_PERM,
9929 .internal_flags = NL80211_FLAG_NEED_WDEV |
9930 NL80211_FLAG_NEED_RTNL,
9931 },
9932 {
9933 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9934 .doit = nl80211_stop_p2p_device,
9935 .policy = nl80211_policy,
9936 .flags = GENL_ADMIN_PERM,
9937 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9938 NL80211_FLAG_NEED_RTNL,
9939 },
f4e583c8
AQ		 9940 {
9941 .cmd = NL80211_CMD_SET_MCAST_RATE,
9942 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9943 .policy = nl80211_policy,
9944 .flags = GENL_ADMIN_PERM,
9945 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9946 NL80211_FLAG_NEED_RTNL,
9947 },
9948 {
9949 .cmd = NL80211_CMD_SET_MAC_ACL,
9950 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9951 .policy = nl80211_policy,
9952 .flags = GENL_ADMIN_PERM,
9953 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9954 NL80211_FLAG_NEED_RTNL,
9955 },
04f39047
SW		 9956 {
9957 .cmd = NL80211_CMD_RADAR_DETECT,
9958 .doit = nl80211_start_radar_detection,
9959 .policy = nl80211_policy,
9960 .flags = GENL_ADMIN_PERM,
9961 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9962 NL80211_FLAG_NEED_RTNL,
9963 },
3713b4e3
JB		 9964 {
9965 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9966 .doit = nl80211_get_protocol_features,
9967 .policy = nl80211_policy,
9968 },
355199e0
JM		 9969 {
9970 .cmd = NL80211_CMD_UPDATE_FT_IES,
9971 .doit = nl80211_update_ft_ies,
9972 .policy = nl80211_policy,
9973 .flags = GENL_ADMIN_PERM,
9974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9975 NL80211_FLAG_NEED_RTNL,
9976 },
5de17984
AS		 9977 {
9978 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9979 .doit = nl80211_crit_protocol_start,
9980 .policy = nl80211_policy,
9981 .flags = GENL_ADMIN_PERM,
9982 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9983 NL80211_FLAG_NEED_RTNL,
9984 },
9985 {
9986 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9987 .doit = nl80211_crit_protocol_stop,
9988 .policy = nl80211_policy,
9989 .flags = GENL_ADMIN_PERM,
9990 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9991 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9992 },
9993 {
9994 .cmd = NL80211_CMD_GET_COALESCE,
9995 .doit = nl80211_get_coalesce,
9996 .policy = nl80211_policy,
9997 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9998 NL80211_FLAG_NEED_RTNL,
9999 },
10000 {
10001 .cmd = NL80211_CMD_SET_COALESCE,
10002 .doit = nl80211_set_coalesce,
10003 .policy = nl80211_policy,
10004 .flags = GENL_ADMIN_PERM,
10005 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10006 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10007 },
10008 {
10009 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10010 .doit = nl80211_channel_switch,
10011 .policy = nl80211_policy,
10012 .flags = GENL_ADMIN_PERM,
10013 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10014 NL80211_FLAG_NEED_RTNL,
10015 },
ad7e718c
JB		 10016 {
10017 .cmd = NL80211_CMD_VENDOR,
10018 .doit = nl80211_vendor_cmd,
10019 .policy = nl80211_policy,
10020 .flags = GENL_ADMIN_PERM,
10021 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10022 NL80211_FLAG_NEED_RTNL,
10023 },
fa9ffc74
KP		 10024 {
10025 .cmd = NL80211_CMD_SET_QOS_MAP,
10026 .doit = nl80211_set_qos_map,
10027 .policy = nl80211_policy,
10028 .flags = GENL_ADMIN_PERM,
10029 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10030 NL80211_FLAG_NEED_RTNL,
10031 },
55682965 10032};
9588bbd5 10033
55682965
JB		 10034/* notification functions */
10035
10036void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
10037{
10038 struct sk_buff *msg;
86e8cf98 10039 struct nl80211_dump_wiphy_state state = {};
55682965 10040
fd2120ca 10041 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10042 if (!msg)
10043 return;
10044
86e8cf98 10045 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10046 nlmsg_free(msg);
10047 return;
10048 }
10049
68eb5503 10050 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10051 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10052}
10053
362a415d
JB		 10054static int nl80211_add_scan_req(struct sk_buff *msg,
10055 struct cfg80211_registered_device *rdev)
10056{
10057 struct cfg80211_scan_request *req = rdev->scan_req;
10058 struct nlattr *nest;
10059 int i;
10060
10061 if (WARN_ON(!req))
10062 return 0;
10063
10064 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10065 if (!nest)
10066 goto nla_put_failure;
9360ffd1
DM		 10067 for (i = 0; i < req->n_ssids; i++) {
10068 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10069 goto nla_put_failure;
10070 }
362a415d
JB		 10071 nla_nest_end(msg, nest);
10072
10073 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10074 if (!nest)
10075 goto nla_put_failure;
9360ffd1
DM		 10076 for (i = 0; i < req->n_channels; i++) {
10077 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10078 goto nla_put_failure;
10079 }
362a415d
JB		 10080 nla_nest_end(msg, nest);
10081
9360ffd1
DM		 10082 if (req->ie &&
10083 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10084 goto nla_put_failure;
362a415d 10085
ae917c9f
JB		 10086 if (req->flags &&
10087 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10088 goto nla_put_failure;
ed473771 10089
362a415d
JB		 10090 return 0;
10091 nla_put_failure:
10092 return -ENOBUFS;
10093}
10094
a538e2d5
JB		 10095static int nl80211_send_scan_msg(struct sk_buff *msg,
10096 struct cfg80211_registered_device *rdev,
fd014284 10097 struct wireless_dev *wdev,
15e47304 10098 u32 portid, u32 seq, int flags,
a538e2d5 10099 u32 cmd)
2a519311
JB		 10100{
10101 void *hdr;
10102
15e47304 10103 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10104 if (!hdr)
10105 return -1;
10106
9360ffd1 10107 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10108 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10109 wdev->netdev->ifindex)) ||
10110 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10111 goto nla_put_failure;
2a519311 10112
362a415d
JB		 10113 /* ignore errors and send incomplete event anyway */
10114 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10115
10116 return genlmsg_end(msg, hdr);
10117
10118 nla_put_failure:
10119 genlmsg_cancel(msg, hdr);
10120 return -EMSGSIZE;
10121}
10122
807f8a8c
LC		 10123static int
10124nl80211_send_sched_scan_msg(struct sk_buff *msg,
10125 struct cfg80211_registered_device *rdev,
10126 struct net_device *netdev,
15e47304 10127 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10128{
10129 void *hdr;
10130
15e47304 10131 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10132 if (!hdr)
10133 return -1;
10134
9360ffd1
DM		 10135 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10136 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10137 goto nla_put_failure;
807f8a8c
LC		 10138
10139 return genlmsg_end(msg, hdr);
10140
10141 nla_put_failure:
10142 genlmsg_cancel(msg, hdr);
10143 return -EMSGSIZE;
10144}
10145
a538e2d5 10146void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10147 struct wireless_dev *wdev)
a538e2d5
JB		 10148{
10149 struct sk_buff *msg;
10150
58050fce 10151 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10152 if (!msg)
10153 return;
10154
fd014284 10155 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10156 NL80211_CMD_TRIGGER_SCAN) < 0) {
10157 nlmsg_free(msg);
10158 return;
10159 }
10160
68eb5503 10161 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10162 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10163}
10164
f9d15d16
JB		 10165struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10166 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10167{
10168 struct sk_buff *msg;
10169
fd2120ca 10170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10171 if (!msg)
f9d15d16 10172 return NULL;
2a519311 10173
fd014284 10174 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10175 aborted ? NL80211_CMD_SCAN_ABORTED :
10176 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10177 nlmsg_free(msg);
f9d15d16 10178 return NULL;
2a519311
JB		 10179 }
10180
f9d15d16 10181 return msg;
2a519311
JB		 10182}
10183
f9d15d16
JB		 10184void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10185 struct sk_buff *msg)
2a519311 10186{
2a519311
JB		 10187 if (!msg)
10188 return;
10189
68eb5503 10190 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10191 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10192}
10193
807f8a8c
LC		 10194void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10195 struct net_device *netdev)
10196{
10197 struct sk_buff *msg;
10198
10199 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10200 if (!msg)
10201 return;
10202
10203 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10204 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10205 nlmsg_free(msg);
10206 return;
10207 }
10208
68eb5503 10209 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10210 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10211}
10212
10213void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10214 struct net_device *netdev, u32 cmd)
10215{
10216 struct sk_buff *msg;
10217
58050fce 10218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10219 if (!msg)
10220 return;
10221
10222 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10223 nlmsg_free(msg);
10224 return;
10225 }
10226
68eb5503 10227 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10228 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10229}
10230
73d54c9e
LR		 10231/*
10232 * This can happen on global regulatory changes or device specific settings
10233 * based on custom world regulatory domains.
10234 */
10235void nl80211_send_reg_change_event(struct regulatory_request *request)
10236{
10237 struct sk_buff *msg;
10238 void *hdr;
10239
fd2120ca 10240 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10241 if (!msg)
10242 return;
10243
10244 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10245 if (!hdr) {
10246 nlmsg_free(msg);
10247 return;
10248 }
10249
10250 /* Userspace can always count this one always being set */
9360ffd1
DM		 10251 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10252 goto nla_put_failure;
10253
10254 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10255 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10256 NL80211_REGDOM_TYPE_WORLD))
10257 goto nla_put_failure;
10258 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10259 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10260 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10261 goto nla_put_failure;
10262 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10263 request->intersect) {
10264 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10265 NL80211_REGDOM_TYPE_INTERSECTION))
10266 goto nla_put_failure;
10267 } else {
10268 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10269 NL80211_REGDOM_TYPE_COUNTRY) ||
10270 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10271 request->alpha2))
10272 goto nla_put_failure;
10273 }
10274
f4173766 10275 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10276 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10277 goto nla_put_failure;
73d54c9e 10278
3b7b72ee 10279 genlmsg_end(msg, hdr);
73d54c9e 10280
bc43b28c 10281 rcu_read_lock();
68eb5503 10282 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10283 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10284 rcu_read_unlock();
73d54c9e
LR		 10285
10286 return;
10287
10288nla_put_failure:
10289 genlmsg_cancel(msg, hdr);
10290 nlmsg_free(msg);
10291}
10292
6039f6d2
JM		 10293static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10294 struct net_device *netdev,
10295 const u8 *buf, size_t len,
e6d6e342 10296 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10297{
10298 struct sk_buff *msg;
10299 void *hdr;
10300
e6d6e342 10301 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10302 if (!msg)
10303 return;
10304
10305 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10306 if (!hdr) {
10307 nlmsg_free(msg);
10308 return;
10309 }
10310
9360ffd1
DM		 10311 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10312 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10313 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10314 goto nla_put_failure;
6039f6d2 10315
3b7b72ee 10316 genlmsg_end(msg, hdr);
6039f6d2 10317
68eb5503 10318 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10319 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10320 return;
10321
10322 nla_put_failure:
10323 genlmsg_cancel(msg, hdr);
10324 nlmsg_free(msg);
10325}
10326
10327void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10328 struct net_device *netdev, const u8 *buf,
10329 size_t len, gfp_t gfp)
6039f6d2
JM		 10330{
10331 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10332 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10333}
10334
10335void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10336 struct net_device *netdev, const u8 *buf,
e6d6e342 10337 size_t len, gfp_t gfp)
6039f6d2 10338{
e6d6e342
JB		 10339 nl80211_send_mlme_event(rdev, netdev, buf, len,
10340 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10341}
10342
53b46b84 10343void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10344 struct net_device *netdev, const u8 *buf,
10345 size_t len, gfp_t gfp)
6039f6d2
JM		 10346{
10347 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10348 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10349}
10350
53b46b84
JM		 10351void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10352 struct net_device *netdev, const u8 *buf,
e6d6e342 10353 size_t len, gfp_t gfp)
6039f6d2
JM		 10354{
10355 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10356 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10357}
10358
6ff57cf8
JB		 10359void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10360 size_t len)
cf4e594e 10361{
947add36
JB		 10362 struct wireless_dev *wdev = dev->ieee80211_ptr;
10363 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10364 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10365 const struct ieee80211_mgmt *mgmt = (void *)buf;
10366 u32 cmd;
947add36 10367
6ff57cf8
JB		 10368 if (WARN_ON(len < 2))
10369 return;
cf4e594e 10370
6ff57cf8
JB		 10371 if (ieee80211_is_deauth(mgmt->frame_control))
10372 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10373 else
10374 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10375
6ff57cf8
JB		 10376 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10377 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10378}
6ff57cf8 10379EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10380
1b06bb40
LR		 10381static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10382 struct net_device *netdev, int cmd,
e6d6e342 10383 const u8 *addr, gfp_t gfp)
1965c853
JM		 10384{
10385 struct sk_buff *msg;
10386 void *hdr;
10387
e6d6e342 10388 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10389 if (!msg)
10390 return;
10391
10392 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10393 if (!hdr) {
10394 nlmsg_free(msg);
10395 return;
10396 }
10397
9360ffd1
DM		 10398 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10399 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10400 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10401 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10402 goto nla_put_failure;
1965c853 10403
3b7b72ee 10404 genlmsg_end(msg, hdr);
1965c853 10405
68eb5503 10406 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10407 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10408 return;
10409
10410 nla_put_failure:
10411 genlmsg_cancel(msg, hdr);
10412 nlmsg_free(msg);
10413}
10414
10415void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10416 struct net_device *netdev, const u8 *addr,
10417 gfp_t gfp)
1965c853
JM		 10418{
10419 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10420 addr, gfp);
1965c853
JM		 10421}
10422
10423void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10424 struct net_device *netdev, const u8 *addr,
10425 gfp_t gfp)
1965c853 10426{
e6d6e342
JB		 10427 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10428 addr, gfp);
1965c853
JM		 10429}
10430
b23aa676
SO		 10431void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10432 struct net_device *netdev, const u8 *bssid,
10433 const u8 *req_ie, size_t req_ie_len,
10434 const u8 *resp_ie, size_t resp_ie_len,
10435 u16 status, gfp_t gfp)
10436{
10437 struct sk_buff *msg;
10438 void *hdr;
10439
58050fce 10440 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10441 if (!msg)
10442 return;
10443
10444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10445 if (!hdr) {
10446 nlmsg_free(msg);
10447 return;
10448 }
10449
9360ffd1
DM		 10450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10452 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10453 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10454 (req_ie &&
10455 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10456 (resp_ie &&
10457 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10458 goto nla_put_failure;
b23aa676 10459
3b7b72ee 10460 genlmsg_end(msg, hdr);
b23aa676 10461
68eb5503 10462 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10463 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10464 return;
10465
10466 nla_put_failure:
10467 genlmsg_cancel(msg, hdr);
10468 nlmsg_free(msg);
10469
10470}
10471
10472void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10473 struct net_device *netdev, const u8 *bssid,
10474 const u8 *req_ie, size_t req_ie_len,
10475 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10476{
10477 struct sk_buff *msg;
10478 void *hdr;
10479
58050fce 10480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10481 if (!msg)
10482 return;
10483
10484 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10485 if (!hdr) {
10486 nlmsg_free(msg);
10487 return;
10488 }
10489
9360ffd1
DM		 10490 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10491 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10492 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10493 (req_ie &&
10494 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10495 (resp_ie &&
10496 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10497 goto nla_put_failure;
b23aa676 10498
3b7b72ee 10499 genlmsg_end(msg, hdr);
b23aa676 10500
68eb5503 10501 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10502 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10503 return;
10504
10505 nla_put_failure:
10506 genlmsg_cancel(msg, hdr);
10507 nlmsg_free(msg);
10508
10509}
10510
10511void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10512 struct net_device *netdev, u16 reason,
667503dd 10513 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10514{
10515 struct sk_buff *msg;
10516 void *hdr;
10517
58050fce 10518 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10519 if (!msg)
10520 return;
10521
10522 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10523 if (!hdr) {
10524 nlmsg_free(msg);
10525 return;
10526 }
10527
9360ffd1
DM		 10528 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10529 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10530 (from_ap && reason &&
10531 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10532 (from_ap &&
10533 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10534 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10535 goto nla_put_failure;
b23aa676 10536
3b7b72ee 10537 genlmsg_end(msg, hdr);
b23aa676 10538
68eb5503 10539 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10540 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10541 return;
10542
10543 nla_put_failure:
10544 genlmsg_cancel(msg, hdr);
10545 nlmsg_free(msg);
10546
10547}
10548
04a773ad
JB		 10549void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10550 struct net_device *netdev, const u8 *bssid,
10551 gfp_t gfp)
10552{
10553 struct sk_buff *msg;
10554 void *hdr;
10555
fd2120ca 10556 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10557 if (!msg)
10558 return;
10559
10560 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10561 if (!hdr) {
10562 nlmsg_free(msg);
10563 return;
10564 }
10565
9360ffd1
DM		 10566 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10567 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10568 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10569 goto nla_put_failure;
04a773ad 10570
3b7b72ee 10571 genlmsg_end(msg, hdr);
04a773ad 10572
68eb5503 10573 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10574 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10575 return;
10576
10577 nla_put_failure:
10578 genlmsg_cancel(msg, hdr);
10579 nlmsg_free(msg);
10580}
10581
947add36
JB		 10582void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10583 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10584{
947add36 10585 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10586 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10587 struct sk_buff *msg;
10588 void *hdr;
10589
947add36
JB		 10590 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10591 return;
10592
10593 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10594
c93b5e71
JC		 10595 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10596 if (!msg)
10597 return;
10598
10599 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10600 if (!hdr) {
10601 nlmsg_free(msg);
10602 return;
10603 }
10604
9360ffd1 10605 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10606 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10607 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10608 (ie_len && ie &&
10609 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10610 goto nla_put_failure;
c93b5e71 10611
3b7b72ee 10612 genlmsg_end(msg, hdr);
c93b5e71 10613
68eb5503 10614 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10615 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10616 return;
10617
10618 nla_put_failure:
10619 genlmsg_cancel(msg, hdr);
10620 nlmsg_free(msg);
10621}
947add36 10622EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10623
a3b8b056
JM		 10624void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10625 struct net_device *netdev, const u8 *addr,
10626 enum nl80211_key_type key_type, int key_id,
e6d6e342 10627 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10628{
10629 struct sk_buff *msg;
10630 void *hdr;
10631
e6d6e342 10632 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10633 if (!msg)
10634 return;
10635
10636 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10637 if (!hdr) {
10638 nlmsg_free(msg);
10639 return;
10640 }
10641
9360ffd1
DM		 10642 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10643 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10644 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10645 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10646 (key_id != -1 &&
10647 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10648 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10649 goto nla_put_failure;
a3b8b056 10650
3b7b72ee 10651 genlmsg_end(msg, hdr);
a3b8b056 10652
68eb5503 10653 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10654 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10655 return;
10656
10657 nla_put_failure:
10658 genlmsg_cancel(msg, hdr);
10659 nlmsg_free(msg);
10660}
10661
6bad8766
LR		 10662void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10663 struct ieee80211_channel *channel_before,
10664 struct ieee80211_channel *channel_after)
10665{
10666 struct sk_buff *msg;
10667 void *hdr;
10668 struct nlattr *nl_freq;
10669
fd2120ca 10670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10671 if (!msg)
10672 return;
10673
10674 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10675 if (!hdr) {
10676 nlmsg_free(msg);
10677 return;
10678 }
10679
10680 /*
10681 * Since we are applying the beacon hint to a wiphy we know its
10682 * wiphy_idx is valid
10683 */
9360ffd1
DM		 10684 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10685 goto nla_put_failure;
6bad8766
LR		 10686
10687 /* Before */
10688 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10689 if (!nl_freq)
10690 goto nla_put_failure;
cdc89b97 10691 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10692 goto nla_put_failure;
10693 nla_nest_end(msg, nl_freq);
10694
10695 /* After */
10696 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10697 if (!nl_freq)
10698 goto nla_put_failure;
cdc89b97 10699 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10700 goto nla_put_failure;
10701 nla_nest_end(msg, nl_freq);
10702
3b7b72ee 10703 genlmsg_end(msg, hdr);
6bad8766 10704
463d0183 10705 rcu_read_lock();
68eb5503 10706 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10707 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10708 rcu_read_unlock();
6bad8766
LR		 10709
10710 return;
10711
10712nla_put_failure:
10713 genlmsg_cancel(msg, hdr);
10714 nlmsg_free(msg);
10715}
10716
9588bbd5
JM		 10717static void nl80211_send_remain_on_chan_event(
10718 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10719 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10720 struct ieee80211_channel *chan,
9588bbd5
JM		 10721 unsigned int duration, gfp_t gfp)
10722{
10723 struct sk_buff *msg;
10724 void *hdr;
10725
10726 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10727 if (!msg)
10728 return;
10729
10730 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10731 if (!hdr) {
10732 nlmsg_free(msg);
10733 return;
10734 }
10735
9360ffd1 10736 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10737 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10738 wdev->netdev->ifindex)) ||
00f53350 10739 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10740 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10741 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10742 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10743 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10744 goto nla_put_failure;
9588bbd5 10745
9360ffd1
DM		 10746 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10747 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10748 goto nla_put_failure;
9588bbd5 10749
3b7b72ee 10750 genlmsg_end(msg, hdr);
9588bbd5 10751
68eb5503 10752 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10753 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10754 return;
10755
10756 nla_put_failure:
10757 genlmsg_cancel(msg, hdr);
10758 nlmsg_free(msg);
10759}
10760
947add36
JB		 10761void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10762 struct ieee80211_channel *chan,
10763 unsigned int duration, gfp_t gfp)
9588bbd5 10764{
947add36 10765 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10766 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10767
10768 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10769 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10770 rdev, wdev, cookie, chan,
42d97a59 10771 duration, gfp);
9588bbd5 10772}
947add36 10773EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10774
947add36
JB		 10775void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10776 struct ieee80211_channel *chan,
10777 gfp_t gfp)
9588bbd5 10778{
947add36 10779 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10780 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10781
10782 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10783 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10784 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10785}
947add36 10786EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10787
947add36
JB		 10788void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10789 struct station_info *sinfo, gfp_t gfp)
98b62183 10790{
947add36 10791 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10792 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10793 struct sk_buff *msg;
10794
947add36
JB		 10795 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10796
58050fce 10797 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10798 if (!msg)
10799 return;
10800
66266b3a
JL		 10801 if (nl80211_send_station(msg, 0, 0, 0,
10802 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10803 nlmsg_free(msg);
10804 return;
10805 }
10806
68eb5503 10807 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10808 NL80211_MCGRP_MLME, gfp);
98b62183 10809}
947add36 10810EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10811
947add36 10812void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10813{
947add36 10814 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10815 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10816 struct sk_buff *msg;
10817 void *hdr;
10818
947add36
JB		 10819 trace_cfg80211_del_sta(dev, mac_addr);
10820
58050fce 10821 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10822 if (!msg)
10823 return;
10824
10825 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10826 if (!hdr) {
10827 nlmsg_free(msg);
10828 return;
10829 }
10830
9360ffd1
DM		 10831 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10832 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10833 goto nla_put_failure;
ec15e68b 10834
3b7b72ee 10835 genlmsg_end(msg, hdr);
ec15e68b 10836
68eb5503 10837 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10838 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10839 return;
10840
10841 nla_put_failure:
10842 genlmsg_cancel(msg, hdr);
10843 nlmsg_free(msg);
10844}
947add36 10845EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10846
947add36
JB		 10847void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10848 enum nl80211_connect_failed_reason reason,
10849 gfp_t gfp)
ed44a951 10850{
947add36 10851 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10852 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10853 struct sk_buff *msg;
10854 void *hdr;
10855
10856 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10857 if (!msg)
10858 return;
10859
10860 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10861 if (!hdr) {
10862 nlmsg_free(msg);
10863 return;
10864 }
10865
10866 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10867 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10868 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10869 goto nla_put_failure;
10870
10871 genlmsg_end(msg, hdr);
10872
68eb5503 10873 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10874 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10875 return;
10876
10877 nla_put_failure:
10878 genlmsg_cancel(msg, hdr);
10879 nlmsg_free(msg);
10880}
947add36 10881EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10882
b92ab5d8
JB		 10883static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10884 const u8 *addr, gfp_t gfp)
28946da7
JB		 10885{
10886 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10887 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10888 struct sk_buff *msg;
10889 void *hdr;
15e47304 10890 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10891
15e47304 10892 if (!nlportid)
28946da7
JB		 10893 return false;
10894
10895 msg = nlmsg_new(100, gfp);
10896 if (!msg)
10897 return true;
10898
b92ab5d8 10899 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10900 if (!hdr) {
10901 nlmsg_free(msg);
10902 return true;
10903 }
10904
9360ffd1
DM		 10905 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10906 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10907 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10908 goto nla_put_failure;
28946da7 10909
9c90a9f6 10910 genlmsg_end(msg, hdr);
15e47304 10911 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10912 return true;
10913
10914 nla_put_failure:
10915 genlmsg_cancel(msg, hdr);
10916 nlmsg_free(msg);
10917 return true;
10918}
10919
947add36
JB		 10920bool cfg80211_rx_spurious_frame(struct net_device *dev,
10921 const u8 *addr, gfp_t gfp)
b92ab5d8 10922{
947add36
JB		 10923 struct wireless_dev *wdev = dev->ieee80211_ptr;
10924 bool ret;
10925
10926 trace_cfg80211_rx_spurious_frame(dev, addr);
10927
10928 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10929 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10930 trace_cfg80211_return_bool(false);
10931 return false;
10932 }
10933 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10934 addr, gfp);
10935 trace_cfg80211_return_bool(ret);
10936 return ret;
b92ab5d8 10937}
947add36 10938EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10939
947add36
JB		 10940bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10941 const u8 *addr, gfp_t gfp)
b92ab5d8 10942{
947add36
JB		 10943 struct wireless_dev *wdev = dev->ieee80211_ptr;
10944 bool ret;
10945
10946 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10947
10948 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10949 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10950 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10951 trace_cfg80211_return_bool(false);
10952 return false;
10953 }
10954 ret = __nl80211_unexpected_frame(dev,
10955 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10956 addr, gfp);
10957 trace_cfg80211_return_bool(ret);
10958 return ret;
b92ab5d8 10959}
947add36 10960EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10961
2e161f78 10962int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10963 struct wireless_dev *wdev, u32 nlportid,
804483e9 10964 int freq, int sig_dbm,
19504cf5 10965 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10966{
71bbc994 10967 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10968 struct sk_buff *msg;
10969 void *hdr;
026331c4
JM		 10970
10971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10972 if (!msg)
10973 return -ENOMEM;
10974
2e161f78 10975 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10976 if (!hdr) {
10977 nlmsg_free(msg);
10978 return -ENOMEM;
10979 }
10980
9360ffd1 10981 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10982 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10983 netdev->ifindex)) ||
a838490b 10984 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10985 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10986 (sig_dbm &&
10987 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10988 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10989 (flags &&
10990 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10991 goto nla_put_failure;
026331c4 10992
3b7b72ee 10993 genlmsg_end(msg, hdr);
026331c4 10994
15e47304 10995 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10996
10997 nla_put_failure:
10998 genlmsg_cancel(msg, hdr);
10999 nlmsg_free(msg);
11000 return -ENOBUFS;
11001}
11002
947add36
JB		 11003void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11004 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11005{
947add36 11006 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11007 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11008 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11009 struct sk_buff *msg;
11010 void *hdr;
11011
947add36
JB		 11012 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11013
026331c4
JM		 11014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11015 if (!msg)
11016 return;
11017
2e161f78 11018 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11019 if (!hdr) {
11020 nlmsg_free(msg);
11021 return;
11022 }
11023
9360ffd1 11024 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11025 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11026 netdev->ifindex)) ||
a838490b 11027 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11028 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11029 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11030 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11031 goto nla_put_failure;
026331c4 11032
3b7b72ee 11033 genlmsg_end(msg, hdr);
026331c4 11034
68eb5503 11035 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11036 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11037 return;
11038
11039 nla_put_failure:
11040 genlmsg_cancel(msg, hdr);
11041 nlmsg_free(msg);
11042}
947add36 11043EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11044
947add36
JB		 11045void cfg80211_cqm_rssi_notify(struct net_device *dev,
11046 enum nl80211_cqm_rssi_threshold_event rssi_event,
11047 gfp_t gfp)
d6dc1a38 11048{
947add36
JB		 11049 struct wireless_dev *wdev = dev->ieee80211_ptr;
11050 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11051 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11052 struct sk_buff *msg;
11053 struct nlattr *pinfoattr;
11054 void *hdr;
11055
947add36
JB		 11056 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11057
58050fce 11058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11059 if (!msg)
11060 return;
11061
11062 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11063 if (!hdr) {
11064 nlmsg_free(msg);
11065 return;
11066 }
11067
9360ffd1 11068 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11069 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11070 goto nla_put_failure;
d6dc1a38
JO		 11071
11072 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11073 if (!pinfoattr)
11074 goto nla_put_failure;
11075
9360ffd1
DM		 11076 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11077 rssi_event))
11078 goto nla_put_failure;
d6dc1a38
JO		 11079
11080 nla_nest_end(msg, pinfoattr);
11081
3b7b72ee 11082 genlmsg_end(msg, hdr);
d6dc1a38 11083
68eb5503 11084 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11085 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11086 return;
11087
11088 nla_put_failure:
11089 genlmsg_cancel(msg, hdr);
11090 nlmsg_free(msg);
11091}
947add36 11092EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11093
947add36
JB		 11094static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11095 struct net_device *netdev, const u8 *bssid,
11096 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11097{
11098 struct sk_buff *msg;
11099 struct nlattr *rekey_attr;
11100 void *hdr;
11101
58050fce 11102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11103 if (!msg)
11104 return;
11105
11106 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11107 if (!hdr) {
11108 nlmsg_free(msg);
11109 return;
11110 }
11111
9360ffd1
DM		 11112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11113 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11114 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11115 goto nla_put_failure;
e5497d76
JB		 11116
11117 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11118 if (!rekey_attr)
11119 goto nla_put_failure;
11120
9360ffd1
DM		 11121 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11122 NL80211_REPLAY_CTR_LEN, replay_ctr))
11123 goto nla_put_failure;
e5497d76
JB		 11124
11125 nla_nest_end(msg, rekey_attr);
11126
3b7b72ee 11127 genlmsg_end(msg, hdr);
e5497d76 11128
68eb5503 11129 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11130 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11131 return;
11132
11133 nla_put_failure:
11134 genlmsg_cancel(msg, hdr);
11135 nlmsg_free(msg);
11136}
11137
947add36
JB		 11138void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11139 const u8 *replay_ctr, gfp_t gfp)
11140{
11141 struct wireless_dev *wdev = dev->ieee80211_ptr;
11142 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11143 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11144
11145 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11146 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11147}
11148EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11149
11150static void
11151nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11152 struct net_device *netdev, int index,
11153 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11154{
11155 struct sk_buff *msg;
11156 struct nlattr *attr;
11157 void *hdr;
11158
58050fce 11159 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11160 if (!msg)
11161 return;
11162
11163 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11164 if (!hdr) {
11165 nlmsg_free(msg);
11166 return;
11167 }
11168
9360ffd1
DM		 11169 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11170 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11171 goto nla_put_failure;
c9df56b4
JM		 11172
11173 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11174 if (!attr)
11175 goto nla_put_failure;
11176
9360ffd1
DM		 11177 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11178 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11179 (preauth &&
11180 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11181 goto nla_put_failure;
c9df56b4
JM		 11182
11183 nla_nest_end(msg, attr);
11184
3b7b72ee 11185 genlmsg_end(msg, hdr);
c9df56b4 11186
68eb5503 11187 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11188 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11189 return;
11190
11191 nla_put_failure:
11192 genlmsg_cancel(msg, hdr);
11193 nlmsg_free(msg);
11194}
11195
947add36
JB		 11196void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11197 const u8 *bssid, bool preauth, gfp_t gfp)
11198{
11199 struct wireless_dev *wdev = dev->ieee80211_ptr;
11200 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11201 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11202
11203 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11204 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11205}
11206EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11207
11208static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11209 struct net_device *netdev,
11210 struct cfg80211_chan_def *chandef,
11211 gfp_t gfp)
5314526b
TP		 11212{
11213 struct sk_buff *msg;
11214 void *hdr;
11215
58050fce 11216 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11217 if (!msg)
11218 return;
11219
11220 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11221 if (!hdr) {
11222 nlmsg_free(msg);
11223 return;
11224 }
11225
683b6d3b
JB		 11226 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11227 goto nla_put_failure;
11228
11229 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11230 goto nla_put_failure;
5314526b
TP		 11231
11232 genlmsg_end(msg, hdr);
11233
68eb5503 11234 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11235 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11236 return;
11237
11238 nla_put_failure:
11239 genlmsg_cancel(msg, hdr);
11240 nlmsg_free(msg);
11241}
11242
947add36
JB		 11243void cfg80211_ch_switch_notify(struct net_device *dev,
11244 struct cfg80211_chan_def *chandef)
84f10708 11245{
947add36
JB		 11246 struct wireless_dev *wdev = dev->ieee80211_ptr;
11247 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11248 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11249
e487eaeb 11250 ASSERT_WDEV_LOCK(wdev);
947add36 11251
e487eaeb 11252 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11253
11254 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11255 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11256 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11257 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11258 return;
947add36 11259
9e0e2961 11260 wdev->chandef = *chandef;
96f55f12 11261 wdev->preset_chandef = *chandef;
947add36 11262 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11263}
11264EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11265
11266void cfg80211_cqm_txe_notify(struct net_device *dev,
11267 const u8 *peer, u32 num_packets,
11268 u32 rate, u32 intvl, gfp_t gfp)
11269{
11270 struct wireless_dev *wdev = dev->ieee80211_ptr;
11271 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11272 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11273 struct sk_buff *msg;
11274 struct nlattr *pinfoattr;
11275 void *hdr;
11276
11277 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11278 if (!msg)
11279 return;
11280
11281 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11282 if (!hdr) {
11283 nlmsg_free(msg);
11284 return;
11285 }
11286
11287 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11288 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11289 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11290 goto nla_put_failure;
11291
11292 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11293 if (!pinfoattr)
11294 goto nla_put_failure;
11295
11296 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11297 goto nla_put_failure;
11298
11299 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11300 goto nla_put_failure;
11301
11302 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11303 goto nla_put_failure;
11304
11305 nla_nest_end(msg, pinfoattr);
11306
11307 genlmsg_end(msg, hdr);
11308
68eb5503 11309 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11310 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11311 return;
11312
11313 nla_put_failure:
11314 genlmsg_cancel(msg, hdr);
11315 nlmsg_free(msg);
11316}
947add36 11317EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11318
04f39047
SW		 11319void
11320nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11321 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11322 enum nl80211_radar_event event,
11323 struct net_device *netdev, gfp_t gfp)
11324{
11325 struct sk_buff *msg;
11326 void *hdr;
11327
11328 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11329 if (!msg)
11330 return;
11331
11332 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11333 if (!hdr) {
11334 nlmsg_free(msg);
11335 return;
11336 }
11337
11338 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11339 goto nla_put_failure;
11340
11341 /* NOP and radar events don't need a netdev parameter */
11342 if (netdev) {
11343 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11344
11345 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11346 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11347 goto nla_put_failure;
11348 }
11349
11350 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11351 goto nla_put_failure;
11352
11353 if (nl80211_send_chandef(msg, chandef))
11354 goto nla_put_failure;
11355
9c90a9f6 11356 genlmsg_end(msg, hdr);
04f39047 11357
68eb5503 11358 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11359 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11360 return;
11361
11362 nla_put_failure:
11363 genlmsg_cancel(msg, hdr);
11364 nlmsg_free(msg);
11365}
11366
947add36
JB		 11367void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11368 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11369{
947add36
JB		 11370 struct wireless_dev *wdev = dev->ieee80211_ptr;
11371 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11372 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11373 struct sk_buff *msg;
11374 struct nlattr *pinfoattr;
11375 void *hdr;
11376
947add36
JB		 11377 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11378
58050fce 11379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11380 if (!msg)
11381 return;
11382
11383 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11384 if (!hdr) {
11385 nlmsg_free(msg);
11386 return;
11387 }
11388
9360ffd1 11389 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11390 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11391 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11392 goto nla_put_failure;
c063dbf5
JB		 11393
11394 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11395 if (!pinfoattr)
11396 goto nla_put_failure;
11397
9360ffd1
DM		 11398 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11399 goto nla_put_failure;
c063dbf5
JB		 11400
11401 nla_nest_end(msg, pinfoattr);
11402
3b7b72ee 11403 genlmsg_end(msg, hdr);
c063dbf5 11404
68eb5503 11405 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11406 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11407 return;
11408
11409 nla_put_failure:
11410 genlmsg_cancel(msg, hdr);
11411 nlmsg_free(msg);
11412}
947add36 11413EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11414
7f6cf311
JB		 11415void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11416 u64 cookie, bool acked, gfp_t gfp)
11417{
11418 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11419 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11420 struct sk_buff *msg;
11421 void *hdr;
7f6cf311 11422
4ee3e063
BL		 11423 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11424
58050fce 11425 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11426
7f6cf311
JB		 11427 if (!msg)
11428 return;
11429
11430 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11431 if (!hdr) {
11432 nlmsg_free(msg);
11433 return;
11434 }
11435
9360ffd1
DM		 11436 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11437 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11438 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11439 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11440 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11441 goto nla_put_failure;
7f6cf311 11442
9c90a9f6 11443 genlmsg_end(msg, hdr);
7f6cf311 11444
68eb5503 11445 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11446 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11447 return;
11448
11449 nla_put_failure:
11450 genlmsg_cancel(msg, hdr);
11451 nlmsg_free(msg);
11452}
11453EXPORT_SYMBOL(cfg80211_probe_status);
11454
5e760230
JB		 11455void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11456 const u8 *frame, size_t len,
37c73b5f 11457 int freq, int sig_dbm)
5e760230 11458{
f26cbf40 11459 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11460 struct sk_buff *msg;
11461 void *hdr;
37c73b5f 11462 struct cfg80211_beacon_registration *reg;
5e760230 11463
4ee3e063
BL		 11464 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11465
37c73b5f
BG		 11466 spin_lock_bh(&rdev->beacon_registrations_lock);
11467 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11468 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11469 if (!msg) {
11470 spin_unlock_bh(&rdev->beacon_registrations_lock);
11471 return;
11472 }
5e760230 11473
37c73b5f
BG		 11474 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11475 if (!hdr)
11476 goto nla_put_failure;
5e760230 11477
37c73b5f
BG		 11478 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11479 (freq &&
11480 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11481 (sig_dbm &&
11482 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11483 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11484 goto nla_put_failure;
5e760230 11485
37c73b5f 11486 genlmsg_end(msg, hdr);
5e760230 11487
37c73b5f
BG		 11488 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11489 }
11490 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11491 return;
11492
11493 nla_put_failure:
37c73b5f
BG		 11494 spin_unlock_bh(&rdev->beacon_registrations_lock);
11495 if (hdr)
11496 genlmsg_cancel(msg, hdr);
5e760230
JB		 11497 nlmsg_free(msg);
11498}
11499EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11500
cd8f7cb4
JB		 11501#ifdef CONFIG_PM
11502void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11503 struct cfg80211_wowlan_wakeup *wakeup,
11504 gfp_t gfp)
11505{
f26cbf40 11506 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11507 struct sk_buff *msg;
11508 void *hdr;
9c90a9f6 11509 int size = 200;
cd8f7cb4
JB		 11510
11511 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11512
11513 if (wakeup)
11514 size += wakeup->packet_present_len;
11515
11516 msg = nlmsg_new(size, gfp);
11517 if (!msg)
11518 return;
11519
11520 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11521 if (!hdr)
11522 goto free_msg;
11523
11524 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11525 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11526 goto free_msg;
11527
11528 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11529 wdev->netdev->ifindex))
11530 goto free_msg;
11531
11532 if (wakeup) {
11533 struct nlattr *reasons;
11534
11535 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11536 if (!reasons)
11537 goto free_msg;
cd8f7cb4
JB		 11538
11539 if (wakeup->disconnect &&
11540 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11541 goto free_msg;
11542 if (wakeup->magic_pkt &&
11543 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11544 goto free_msg;
11545 if (wakeup->gtk_rekey_failure &&
11546 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11547 goto free_msg;
11548 if (wakeup->eap_identity_req &&
11549 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11550 goto free_msg;
11551 if (wakeup->four_way_handshake &&
11552 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11553 goto free_msg;
11554 if (wakeup->rfkill_release &&
11555 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11556 goto free_msg;
11557
11558 if (wakeup->pattern_idx >= 0 &&
11559 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11560 wakeup->pattern_idx))
11561 goto free_msg;
11562
ae917c9f
JB		 11563 if (wakeup->tcp_match &&
11564 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11565 goto free_msg;
2a0e047e 11566
ae917c9f
JB		 11567 if (wakeup->tcp_connlost &&
11568 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11569 goto free_msg;
2a0e047e 11570
ae917c9f
JB		 11571 if (wakeup->tcp_nomoretokens &&
11572 nla_put_flag(msg,
11573 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11574 goto free_msg;
2a0e047e 11575
cd8f7cb4
JB		 11576 if (wakeup->packet) {
11577 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11578 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11579
11580 if (!wakeup->packet_80211) {
11581 pkt_attr =
11582 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11583 len_attr =
11584 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11585 }
11586
11587 if (wakeup->packet_len &&
11588 nla_put_u32(msg, len_attr, wakeup->packet_len))
11589 goto free_msg;
11590
11591 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11592 wakeup->packet))
11593 goto free_msg;
11594 }
11595
11596 nla_nest_end(msg, reasons);
11597 }
11598
9c90a9f6 11599 genlmsg_end(msg, hdr);
cd8f7cb4 11600
68eb5503 11601 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11602 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11603 return;
11604
11605 free_msg:
11606 nlmsg_free(msg);
11607}
11608EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11609#endif
11610
3475b094
JM		 11611void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11612 enum nl80211_tdls_operation oper,
11613 u16 reason_code, gfp_t gfp)
11614{
11615 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11616 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11617 struct sk_buff *msg;
11618 void *hdr;
3475b094
JM		 11619
11620 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11621 reason_code);
11622
11623 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11624 if (!msg)
11625 return;
11626
11627 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11628 if (!hdr) {
11629 nlmsg_free(msg);
11630 return;
11631 }
11632
11633 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11634 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11635 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11636 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11637 (reason_code > 0 &&
11638 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11639 goto nla_put_failure;
11640
9c90a9f6 11641 genlmsg_end(msg, hdr);
3475b094 11642
68eb5503 11643 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11644 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11645 return;
11646
11647 nla_put_failure:
11648 genlmsg_cancel(msg, hdr);
11649 nlmsg_free(msg);
11650}
11651EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11652
026331c4
JM		 11653static int nl80211_netlink_notify(struct notifier_block * nb,
11654 unsigned long state,
11655 void *_notify)
11656{
11657 struct netlink_notify *notify = _notify;
11658 struct cfg80211_registered_device *rdev;
11659 struct wireless_dev *wdev;
37c73b5f 11660 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11661
11662 if (state != NETLINK_URELEASE)
11663 return NOTIFY_DONE;
11664
11665 rcu_read_lock();
11666
5e760230 11667 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11668 bool schedule_destroy_work = false;
11669
11670 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11671 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11672
78f22b6a
JB		 11673 if (wdev->owner_nlportid == notify->portid)
11674 schedule_destroy_work = true;
11675 }
11676
37c73b5f
BG		 11677 spin_lock_bh(&rdev->beacon_registrations_lock);
11678 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11679 list) {
11680 if (reg->nlportid == notify->portid) {
11681 list_del(&reg->list);
11682 kfree(reg);
11683 break;
11684 }
11685 }
11686 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11687
11688 if (schedule_destroy_work) {
11689 struct cfg80211_iface_destroy *destroy;
11690
11691 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11692 if (destroy) {
11693 destroy->nlportid = notify->portid;
11694 spin_lock(&rdev->destroy_list_lock);
11695 list_add(&destroy->list, &rdev->destroy_list);
11696 spin_unlock(&rdev->destroy_list_lock);
11697 schedule_work(&rdev->destroy_work);
11698 }
11699 }
5e760230 11700 }
026331c4
JM		 11701
11702 rcu_read_unlock();
11703
6784c7db 11704 return NOTIFY_OK;
026331c4
JM		 11705}
11706
11707static struct notifier_block nl80211_netlink_notifier = {
11708 .notifier_call = nl80211_netlink_notify,
11709};
11710
355199e0
JM		 11711void cfg80211_ft_event(struct net_device *netdev,
11712 struct cfg80211_ft_event_params *ft_event)
11713{
11714 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11715 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11716 struct sk_buff *msg;
11717 void *hdr;
355199e0
JM		 11718
11719 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11720
11721 if (!ft_event->target_ap)
11722 return;
11723
11724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11725 if (!msg)
11726 return;
11727
11728 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11729 if (!hdr)
11730 goto out;
355199e0 11731
ae917c9f
JB		 11732 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11733 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11734 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11735 goto out;
355199e0 11736
ae917c9f
JB		 11737 if (ft_event->ies &&
11738 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11739 goto out;
11740 if (ft_event->ric_ies &&
11741 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11742 ft_event->ric_ies))
11743 goto out;
355199e0 11744
9c90a9f6 11745 genlmsg_end(msg, hdr);
355199e0 11746
68eb5503 11747 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11748 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11749 return;
11750 out:
11751 nlmsg_free(msg);
355199e0
JM		 11752}
11753EXPORT_SYMBOL(cfg80211_ft_event);
11754
5de17984
AS		 11755void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11756{
11757 struct cfg80211_registered_device *rdev;
11758 struct sk_buff *msg;
11759 void *hdr;
11760 u32 nlportid;
11761
f26cbf40 11762 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11763 if (!rdev->crit_proto_nlportid)
11764 return;
11765
11766 nlportid = rdev->crit_proto_nlportid;
11767 rdev->crit_proto_nlportid = 0;
11768
11769 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11770 if (!msg)
11771 return;
11772
11773 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11774 if (!hdr)
11775 goto nla_put_failure;
11776
11777 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11778 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11779 goto nla_put_failure;
11780
11781 genlmsg_end(msg, hdr);
11782
11783 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11784 return;
11785
11786 nla_put_failure:
11787 if (hdr)
11788 genlmsg_cancel(msg, hdr);
11789 nlmsg_free(msg);
11790
11791}
11792EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11793
348baf0e
JB		 11794void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11795{
11796 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11797 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11798 struct sk_buff *msg;
11799 void *hdr;
11800
11801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11802 if (!msg)
11803 return;
11804
11805 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11806 if (!hdr)
11807 goto out;
11808
11809 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11810 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11811 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11812 goto out;
11813
11814 genlmsg_end(msg, hdr);
11815
11816 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11817 NL80211_MCGRP_MLME, GFP_KERNEL);
11818 return;
11819 out:
11820 nlmsg_free(msg);
11821}
11822
55682965
JB		 11823/* initialisation/exit functions */
11824
11825int nl80211_init(void)
11826{
0d63cbb5 11827 int err;
55682965 11828
2a94fe48
JB		 11829 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11830 nl80211_mcgrps);
55682965
JB		 11831 if (err)
11832 return err;
11833
026331c4
JM		 11834 err = netlink_register_notifier(&nl80211_netlink_notifier);
11835 if (err)
11836 goto err_out;
11837
55682965
JB		 11838 return 0;
11839 err_out:
11840 genl_unregister_family(&nl80211_fam);
11841 return err;
11842}
11843
11844void nl80211_exit(void)
11845{
026331c4 11846 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11847 genl_unregister_family(&nl80211_fam);
11848}
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