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cfg80211: Convert del_station() callback to use a param struct
[linux-block.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
55682965
JB		 6 */
7
8#include <linux/if.h>
9#include <linux/module.h>
10#include <linux/err.h>
5a0e3ad6 11#include <linux/slab.h>
55682965
JB		 12#include <linux/list.h>
13#include <linux/if_ether.h>
14#include <linux/ieee80211.h>
15#include <linux/nl80211.h>
16#include <linux/rtnetlink.h>
17#include <linux/netlink.h>
2a519311 18#include <linux/etherdevice.h>
463d0183 19#include <net/net_namespace.h>
55682965
JB		 20#include <net/genetlink.h>
21#include <net/cfg80211.h>
463d0183 22#include <net/sock.h>
2a0e047e 23#include <net/inet_connection_sock.h>
55682965
JB		 24#include "core.h"
25#include "nl80211.h"
b2e1b302 26#include "reg.h"
e35e4d28 27#include "rdev-ops.h"
55682965 28
5fb628e9
JM		 29static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
32 int cipher_limit);
33
f84f771d 34static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 35 struct genl_info *info);
f84f771d 36static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 37 struct genl_info *info);
38
55682965
JB		 39/* the netlink family */
40static struct genl_family nl80211_fam = {
fb4e1568
MH		 41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
55682965 45 .maxattr = NL80211_ATTR_MAX,
463d0183 46 .netnsok = true,
4c476991
JB		 47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
55682965
JB		 49};
50
2a94fe48
JB		 51/* multicast groups */
52enum nl80211_multicast_groups {
53 NL80211_MCGRP_CONFIG,
54 NL80211_MCGRP_SCAN,
55 NL80211_MCGRP_REGULATORY,
56 NL80211_MCGRP_MLME,
567ffc35 57 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
59};
60
61static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 67#ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
69#endif
70};
71
89a54e48
JB		 72/* returns ERR_PTR values */
73static struct wireless_dev *
74__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 75{
89a54e48
JB		 76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
80 u64 wdev_id;
81 int wiphy_idx = -1;
82 int ifidx = -1;
55682965 83
5fe231e8 84 ASSERT_RTNL();
55682965 85
89a54e48
JB		 86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
55682965 88
89a54e48
JB		 89 if (have_ifidx)
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 if (have_wdev_id) {
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
55682965
JB		 94 }
95
89a54e48
JB		 96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
98
99 if (wiphy_net(&rdev->wiphy) != netns)
100 continue;
101
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
103 continue;
104
89a54e48
JB		 105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
108 result = wdev;
109 break;
110 }
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 result = wdev;
113 break;
114 }
115 }
89a54e48
JB		 116
117 if (result)
118 break;
119 }
120
121 if (result)
122 return result;
123 return ERR_PTR(-ENODEV);
55682965
JB		 124}
125
a9455408 126static struct cfg80211_registered_device *
878d9ec7 127__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 128{
7fee4778
JB		 129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
a9455408 131
5fe231e8 132 ASSERT_RTNL();
a9455408 133
878d9ec7 134 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 137 return ERR_PTR(-EINVAL);
138
878d9ec7 139 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 140 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 142
89a54e48
JB		 143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
146 bool found = false;
147
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 if (tmp) {
150 /* make sure wdev exists */
89a54e48
JB		 151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
153 continue;
154 found = true;
155 break;
156 }
89a54e48
JB		 157
158 if (!found)
159 tmp = NULL;
160
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
163 rdev = tmp;
164 }
165 }
166
878d9ec7
JB		 167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 169 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 170 if (netdev) {
171 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 172 tmp = wiphy_to_rdev(
173 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 174 else
175 tmp = NULL;
176
7fee4778
JB		 177 /* not wireless device -- return error */
178 if (!tmp)
179 return ERR_PTR(-EINVAL);
180
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
184
185 rdev = tmp;
a9455408 186 }
a9455408 187 }
a9455408 188
4f7eff10
JB		 189 if (!rdev)
190 return ERR_PTR(-ENODEV);
a9455408 191
4f7eff10
JB		 192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
194
195 return rdev;
a9455408
JB		 196}
197
198/*
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
a9455408
JB		 201 *
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
204 */
205static struct cfg80211_registered_device *
4f7eff10 206cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 207{
5fe231e8 208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209}
210
55682965 211/* policy for the attributes */
b54452b0 212static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 391 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
55682965
JB		 398};
399
e31b8213 400/* policy for the key attributes */
b54452b0 401static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 402 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 403 [NL80211_KEY_IDX] = { .type = NLA_U8 },
404 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 405 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 406 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 408 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 409 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
410};
411
412/* policy for the key default flags */
413static const struct nla_policy
414nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
415 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
416 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 417};
418
ff1b6e69
JB		 419/* policy for WoWLAN attributes */
420static const struct nla_policy
421nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
422 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
423 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 426 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 430 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
431};
432
433static const struct nla_policy
434nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
435 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
436 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
437 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
438 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
439 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
440 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
441 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
442 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
443 },
444 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
445 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
446 },
447 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
448 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
449 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 450};
451
be29b99a
AK		 452/* policy for coalesce rule attributes */
453static const struct nla_policy
454nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
455 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
456 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
457 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
458};
459
e5497d76
JB		 460/* policy for GTK rekey offload attributes */
461static const struct nla_policy
462nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
463 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
464 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
465 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
466};
467
a1f1c21c
LC		 468static const struct nla_policy
469nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 470 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 471 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 472 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 473};
474
97990a06
JB		 475static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
476 struct netlink_callback *cb,
477 struct cfg80211_registered_device **rdev,
478 struct wireless_dev **wdev)
a043897a 479{
97990a06 480 int err;
a043897a 481
97990a06 482 rtnl_lock();
a043897a 483
97990a06
JB		 484 if (!cb->args[0]) {
485 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
486 nl80211_fam.attrbuf, nl80211_fam.maxattr,
487 nl80211_policy);
488 if (err)
489 goto out_unlock;
67748893 490
97990a06
JB		 491 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
492 nl80211_fam.attrbuf);
493 if (IS_ERR(*wdev)) {
494 err = PTR_ERR(*wdev);
495 goto out_unlock;
496 }
f26cbf40 497 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 498 /* 0 is the first index - add 1 to parse only once */
499 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 500 cb->args[1] = (*wdev)->identifier;
501 } else {
c319d50b
JB		 502 /* subtract the 1 again here */
503 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 504 struct wireless_dev *tmp;
67748893 505
97990a06
JB		 506 if (!wiphy) {
507 err = -ENODEV;
508 goto out_unlock;
509 }
f26cbf40 510 *rdev = wiphy_to_rdev(wiphy);
97990a06 511 *wdev = NULL;
67748893 512
97990a06
JB		 513 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
514 if (tmp->identifier == cb->args[1]) {
515 *wdev = tmp;
516 break;
517 }
518 }
67748893 519
97990a06
JB		 520 if (!*wdev) {
521 err = -ENODEV;
522 goto out_unlock;
523 }
67748893
JB		 524 }
525
67748893 526 return 0;
97990a06 527 out_unlock:
67748893
JB		 528 rtnl_unlock();
529 return err;
530}
531
97990a06 532static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 533{
67748893
JB		 534 rtnl_unlock();
535}
536
f4a11bb0
JB		 537/* IE validation */
538static bool is_valid_ie_attr(const struct nlattr *attr)
539{
540 const u8 *pos;
541 int len;
542
543 if (!attr)
544 return true;
545
546 pos = nla_data(attr);
547 len = nla_len(attr);
548
549 while (len) {
550 u8 elemlen;
551
552 if (len < 2)
553 return false;
554 len -= 2;
555
556 elemlen = pos[1];
557 if (elemlen > len)
558 return false;
559
560 len -= elemlen;
561 pos += 2 + elemlen;
562 }
563
564 return true;
565}
566
55682965 567/* message building helper */
15e47304 568static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 569 int flags, u8 cmd)
570{
571 /* since there is no private header just add the generic one */
15e47304 572 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 573}
574
5dab3b8a 575static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 576 struct ieee80211_channel *chan,
577 bool large)
5dab3b8a 578{
ea077c1c
RL		 579 /* Some channels must be completely excluded from the
580 * list to protect old user-space tools from breaking
581 */
582 if (!large && chan->flags &
583 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
584 return 0;
585
9360ffd1
DM		 586 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
587 chan->center_freq))
588 goto nla_put_failure;
5dab3b8a 589
9360ffd1
DM		 590 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
591 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
592 goto nla_put_failure;
8fe02e16
LR		 593 if (chan->flags & IEEE80211_CHAN_NO_IR) {
594 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
595 goto nla_put_failure;
596 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
597 goto nla_put_failure;
598 }
cdc89b97
JB		 599 if (chan->flags & IEEE80211_CHAN_RADAR) {
600 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
601 goto nla_put_failure;
602 if (large) {
603 u32 time;
604
605 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
606
607 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
608 chan->dfs_state))
609 goto nla_put_failure;
610 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
611 time))
612 goto nla_put_failure;
089027e5
JD		 613 if (nla_put_u32(msg,
614 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
615 chan->dfs_cac_ms))
616 goto nla_put_failure;
cdc89b97
JB		 617 }
618 }
5dab3b8a 619
fe1abafd
JB		 620 if (large) {
621 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
622 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
623 goto nla_put_failure;
624 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
632 goto nla_put_failure;
570dbde1
DS		 633 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
635 goto nla_put_failure;
636 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
638 goto nla_put_failure;
ea077c1c
RL		 639 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
641 goto nla_put_failure;
642 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
644 goto nla_put_failure;
fe1abafd
JB		 645 }
646
9360ffd1
DM		 647 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
648 DBM_TO_MBM(chan->max_power)))
649 goto nla_put_failure;
5dab3b8a
LR		 650
651 return 0;
652
653 nla_put_failure:
654 return -ENOBUFS;
655}
656
55682965
JB		 657/* netlink command implementations */
658
b9454e83
JB		 659struct key_parse {
660 struct key_params p;
661 int idx;
e31b8213 662 int type;
b9454e83 663 bool def, defmgmt;
dbd2fd65 664 bool def_uni, def_multi;
b9454e83
JB		 665};
666
667static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
668{
669 struct nlattr *tb[NL80211_KEY_MAX + 1];
670 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
671 nl80211_key_policy);
672 if (err)
673 return err;
674
675 k->def = !!tb[NL80211_KEY_DEFAULT];
676 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
677
dbd2fd65
JB		 678 if (k->def) {
679 k->def_uni = true;
680 k->def_multi = true;
681 }
682 if (k->defmgmt)
683 k->def_multi = true;
684
b9454e83
JB		 685 if (tb[NL80211_KEY_IDX])
686 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
687
688 if (tb[NL80211_KEY_DATA]) {
689 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
690 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
691 }
692
693 if (tb[NL80211_KEY_SEQ]) {
694 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
695 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
696 }
697
698 if (tb[NL80211_KEY_CIPHER])
699 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
700
e31b8213
JB		 701 if (tb[NL80211_KEY_TYPE]) {
702 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
703 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
704 return -EINVAL;
705 }
706
dbd2fd65
JB		 707 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
708 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 709 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
710 tb[NL80211_KEY_DEFAULT_TYPES],
711 nl80211_key_default_policy);
dbd2fd65
JB		 712 if (err)
713 return err;
714
715 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
716 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
717 }
718
b9454e83
JB		 719 return 0;
720}
721
722static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
723{
724 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
725 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
726 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
727 }
728
729 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
730 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
731 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
732 }
733
734 if (info->attrs[NL80211_ATTR_KEY_IDX])
735 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
736
737 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
738 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
739
740 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
741 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
742
dbd2fd65
JB		 743 if (k->def) {
744 k->def_uni = true;
745 k->def_multi = true;
746 }
747 if (k->defmgmt)
748 k->def_multi = true;
749
e31b8213
JB		 750 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
751 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
752 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
753 return -EINVAL;
754 }
755
dbd2fd65
JB		 756 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
757 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
758 int err = nla_parse_nested(
759 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
760 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
761 nl80211_key_default_policy);
762 if (err)
763 return err;
764
765 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
766 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
767 }
768
b9454e83
JB		 769 return 0;
770}
771
772static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
773{
774 int err;
775
776 memset(k, 0, sizeof(*k));
777 k->idx = -1;
e31b8213 778 k->type = -1;
b9454e83
JB		 779
780 if (info->attrs[NL80211_ATTR_KEY])
781 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
782 else
783 err = nl80211_parse_key_old(info, k);
784
785 if (err)
786 return err;
787
788 if (k->def && k->defmgmt)
789 return -EINVAL;
790
dbd2fd65
JB		 791 if (k->defmgmt) {
792 if (k->def_uni || !k->def_multi)
793 return -EINVAL;
794 }
795
b9454e83
JB		 796 if (k->idx != -1) {
797 if (k->defmgmt) {
798 if (k->idx < 4 || k->idx > 5)
799 return -EINVAL;
800 } else if (k->def) {
801 if (k->idx < 0 || k->idx > 3)
802 return -EINVAL;
803 } else {
804 if (k->idx < 0 || k->idx > 5)
805 return -EINVAL;
806 }
807 }
808
809 return 0;
810}
811
fffd0934
JB		 812static struct cfg80211_cached_keys *
813nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 814 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 815{
816 struct key_parse parse;
817 struct nlattr *key;
818 struct cfg80211_cached_keys *result;
819 int rem, err, def = 0;
820
821 result = kzalloc(sizeof(*result), GFP_KERNEL);
822 if (!result)
823 return ERR_PTR(-ENOMEM);
824
825 result->def = -1;
826 result->defmgmt = -1;
827
828 nla_for_each_nested(key, keys, rem) {
829 memset(&parse, 0, sizeof(parse));
830 parse.idx = -1;
831
832 err = nl80211_parse_key_new(key, &parse);
833 if (err)
834 goto error;
835 err = -EINVAL;
836 if (!parse.p.key)
837 goto error;
838 if (parse.idx < 0 || parse.idx > 4)
839 goto error;
840 if (parse.def) {
841 if (def)
842 goto error;
843 def = 1;
844 result->def = parse.idx;
dbd2fd65
JB		 845 if (!parse.def_uni || !parse.def_multi)
846 goto error;
fffd0934
JB		 847 } else if (parse.defmgmt)
848 goto error;
849 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 850 parse.idx, false, NULL);
fffd0934
JB		 851 if (err)
852 goto error;
853 result->params[parse.idx].cipher = parse.p.cipher;
854 result->params[parse.idx].key_len = parse.p.key_len;
855 result->params[parse.idx].key = result->data[parse.idx];
856 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 857
858 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
859 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
860 if (no_ht)
861 *no_ht = true;
862 }
fffd0934
JB		 863 }
864
865 return result;
866 error:
867 kfree(result);
868 return ERR_PTR(err);
869}
870
871static int nl80211_key_allowed(struct wireless_dev *wdev)
872{
873 ASSERT_WDEV_LOCK(wdev);
874
fffd0934
JB		 875 switch (wdev->iftype) {
876 case NL80211_IFTYPE_AP:
877 case NL80211_IFTYPE_AP_VLAN:
074ac8df 878 case NL80211_IFTYPE_P2P_GO:
ff973af7 879 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 880 break;
881 case NL80211_IFTYPE_ADHOC:
fffd0934 882 case NL80211_IFTYPE_STATION:
074ac8df 883 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 884 if (!wdev->current_bss)
fffd0934
JB		 885 return -ENOLINK;
886 break;
887 default:
888 return -EINVAL;
889 }
890
891 return 0;
892}
893
664834de
JM		 894static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
895 struct nlattr *tb)
896{
897 struct ieee80211_channel *chan;
898
899 if (tb == NULL)
900 return NULL;
901 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
902 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
903 return NULL;
904 return chan;
905}
906
7527a782
JB		 907static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
908{
909 struct nlattr *nl_modes = nla_nest_start(msg, attr);
910 int i;
911
912 if (!nl_modes)
913 goto nla_put_failure;
914
915 i = 0;
916 while (ifmodes) {
9360ffd1
DM		 917 if ((ifmodes & 1) && nla_put_flag(msg, i))
918 goto nla_put_failure;
7527a782
JB		 919 ifmodes >>= 1;
920 i++;
921 }
922
923 nla_nest_end(msg, nl_modes);
924 return 0;
925
926nla_put_failure:
927 return -ENOBUFS;
928}
929
930static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 931 struct sk_buff *msg,
932 bool large)
7527a782
JB		 933{
934 struct nlattr *nl_combis;
935 int i, j;
936
937 nl_combis = nla_nest_start(msg,
938 NL80211_ATTR_INTERFACE_COMBINATIONS);
939 if (!nl_combis)
940 goto nla_put_failure;
941
942 for (i = 0; i < wiphy->n_iface_combinations; i++) {
943 const struct ieee80211_iface_combination *c;
944 struct nlattr *nl_combi, *nl_limits;
945
946 c = &wiphy->iface_combinations[i];
947
948 nl_combi = nla_nest_start(msg, i + 1);
949 if (!nl_combi)
950 goto nla_put_failure;
951
952 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
953 if (!nl_limits)
954 goto nla_put_failure;
955
956 for (j = 0; j < c->n_limits; j++) {
957 struct nlattr *nl_limit;
958
959 nl_limit = nla_nest_start(msg, j + 1);
960 if (!nl_limit)
961 goto nla_put_failure;
9360ffd1
DM		 962 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
963 c->limits[j].max))
964 goto nla_put_failure;
7527a782
JB		 965 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
966 c->limits[j].types))
967 goto nla_put_failure;
968 nla_nest_end(msg, nl_limit);
969 }
970
971 nla_nest_end(msg, nl_limits);
972
9360ffd1
DM		 973 if (c->beacon_int_infra_match &&
974 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
975 goto nla_put_failure;
976 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
977 c->num_different_channels) ||
978 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
979 c->max_interfaces))
980 goto nla_put_failure;
cdc89b97 981 if (large &&
8c48b50a
FF		 982 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
983 c->radar_detect_widths) ||
984 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
985 c->radar_detect_regions)))
cdc89b97 986 goto nla_put_failure;
7527a782
JB		 987
988 nla_nest_end(msg, nl_combi);
989 }
990
991 nla_nest_end(msg, nl_combis);
992
993 return 0;
994nla_put_failure:
995 return -ENOBUFS;
996}
997
3713b4e3 998#ifdef CONFIG_PM
b56cf720
JB		 999static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1000 struct sk_buff *msg)
1001{
964dc9e2 1002 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1003 struct nlattr *nl_tcp;
1004
1005 if (!tcp)
1006 return 0;
1007
1008 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1009 if (!nl_tcp)
1010 return -ENOBUFS;
1011
1012 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1013 tcp->data_payload_max))
1014 return -ENOBUFS;
1015
1016 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1017 tcp->data_payload_max))
1018 return -ENOBUFS;
1019
1020 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1021 return -ENOBUFS;
1022
1023 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1024 sizeof(*tcp->tok), tcp->tok))
1025 return -ENOBUFS;
1026
1027 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1028 tcp->data_interval_max))
1029 return -ENOBUFS;
1030
1031 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1032 tcp->wake_payload_max))
1033 return -ENOBUFS;
1034
1035 nla_nest_end(msg, nl_tcp);
1036 return 0;
1037}
1038
3713b4e3 1039static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1040 struct cfg80211_registered_device *rdev,
b56cf720 1041 bool large)
55682965 1042{
3713b4e3 1043 struct nlattr *nl_wowlan;
55682965 1044
1b8ec87a 1045 if (!rdev->wiphy.wowlan)
3713b4e3 1046 return 0;
55682965 1047
3713b4e3
JB		 1048 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1049 if (!nl_wowlan)
1050 return -ENOBUFS;
9360ffd1 1051
1b8ec87a 1052 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1060 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1062 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1064 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1068 return -ENOBUFS;
9360ffd1 1069
1b8ec87a 1070 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1071 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1072 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1073 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1074 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1075 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1076 };
9360ffd1 1077
3713b4e3
JB		 1078 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1079 sizeof(pat), &pat))
1080 return -ENOBUFS;
1081 }
9360ffd1 1082
1b8ec87a 1083 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1084 return -ENOBUFS;
1085
3713b4e3 1086 nla_nest_end(msg, nl_wowlan);
9360ffd1 1087
3713b4e3
JB		 1088 return 0;
1089}
1090#endif
9360ffd1 1091
be29b99a 1092static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1093 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1094{
1095 struct nl80211_coalesce_rule_support rule;
1096
1b8ec87a 1097 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1098 return 0;
1099
1b8ec87a
ZG		 1100 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1101 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1102 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1103 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1104 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1105 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1106
1107 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1108 return -ENOBUFS;
1109
1110 return 0;
1111}
1112
3713b4e3
JB		 1113static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1114 struct ieee80211_supported_band *sband)
1115{
1116 struct nlattr *nl_rates, *nl_rate;
1117 struct ieee80211_rate *rate;
1118 int i;
87bbbe22 1119
3713b4e3
JB		 1120 /* add HT info */
1121 if (sband->ht_cap.ht_supported &&
1122 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1123 sizeof(sband->ht_cap.mcs),
1124 &sband->ht_cap.mcs) ||
1125 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1126 sband->ht_cap.cap) ||
1127 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1128 sband->ht_cap.ampdu_factor) ||
1129 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1130 sband->ht_cap.ampdu_density)))
1131 return -ENOBUFS;
afe0cbf8 1132
3713b4e3
JB		 1133 /* add VHT info */
1134 if (sband->vht_cap.vht_supported &&
1135 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1136 sizeof(sband->vht_cap.vht_mcs),
1137 &sband->vht_cap.vht_mcs) ||
1138 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1139 sband->vht_cap.cap)))
1140 return -ENOBUFS;
f59ac048 1141
3713b4e3
JB		 1142 /* add bitrates */
1143 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1144 if (!nl_rates)
1145 return -ENOBUFS;
ee688b00 1146
3713b4e3
JB		 1147 for (i = 0; i < sband->n_bitrates; i++) {
1148 nl_rate = nla_nest_start(msg, i);
1149 if (!nl_rate)
1150 return -ENOBUFS;
ee688b00 1151
3713b4e3
JB		 1152 rate = &sband->bitrates[i];
1153 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1154 rate->bitrate))
1155 return -ENOBUFS;
1156 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1157 nla_put_flag(msg,
1158 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1159 return -ENOBUFS;
ee688b00 1160
3713b4e3
JB		 1161 nla_nest_end(msg, nl_rate);
1162 }
d51626df 1163
3713b4e3 1164 nla_nest_end(msg, nl_rates);
bf0c111e 1165
3713b4e3
JB		 1166 return 0;
1167}
ee688b00 1168
3713b4e3
JB		 1169static int
1170nl80211_send_mgmt_stypes(struct sk_buff *msg,
1171 const struct ieee80211_txrx_stypes *mgmt_stypes)
1172{
1173 u16 stypes;
1174 struct nlattr *nl_ftypes, *nl_ifs;
1175 enum nl80211_iftype ift;
1176 int i;
ee688b00 1177
3713b4e3
JB		 1178 if (!mgmt_stypes)
1179 return 0;
5dab3b8a 1180
3713b4e3
JB		 1181 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1182 if (!nl_ifs)
1183 return -ENOBUFS;
e2f367f2 1184
3713b4e3
JB		 1185 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1186 nl_ftypes = nla_nest_start(msg, ift);
1187 if (!nl_ftypes)
1188 return -ENOBUFS;
1189 i = 0;
1190 stypes = mgmt_stypes[ift].tx;
1191 while (stypes) {
1192 if ((stypes & 1) &&
1193 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1194 (i << 4) | IEEE80211_FTYPE_MGMT))
1195 return -ENOBUFS;
1196 stypes >>= 1;
1197 i++;
ee688b00 1198 }
3713b4e3
JB		 1199 nla_nest_end(msg, nl_ftypes);
1200 }
ee688b00 1201
3713b4e3 1202 nla_nest_end(msg, nl_ifs);
ee688b00 1203
3713b4e3
JB		 1204 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1205 if (!nl_ifs)
1206 return -ENOBUFS;
ee688b00 1207
3713b4e3
JB		 1208 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1209 nl_ftypes = nla_nest_start(msg, ift);
1210 if (!nl_ftypes)
1211 return -ENOBUFS;
1212 i = 0;
1213 stypes = mgmt_stypes[ift].rx;
1214 while (stypes) {
1215 if ((stypes & 1) &&
1216 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1217 (i << 4) | IEEE80211_FTYPE_MGMT))
1218 return -ENOBUFS;
1219 stypes >>= 1;
1220 i++;
1221 }
1222 nla_nest_end(msg, nl_ftypes);
1223 }
1224 nla_nest_end(msg, nl_ifs);
ee688b00 1225
3713b4e3
JB		 1226 return 0;
1227}
ee688b00 1228
86e8cf98
JB		 1229struct nl80211_dump_wiphy_state {
1230 s64 filter_wiphy;
1231 long start;
1232 long split_start, band_start, chan_start;
1233 bool split;
1234};
1235
1b8ec87a 1236static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1237 enum nl80211_commands cmd,
3713b4e3 1238 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1239 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1240{
1241 void *hdr;
1242 struct nlattr *nl_bands, *nl_band;
1243 struct nlattr *nl_freqs, *nl_freq;
1244 struct nlattr *nl_cmds;
1245 enum ieee80211_band band;
1246 struct ieee80211_channel *chan;
1247 int i;
1248 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1249 rdev->wiphy.mgmt_stypes;
fe1abafd 1250 u32 features;
ee688b00 1251
3bb20556 1252 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1253 if (!hdr)
1254 return -ENOBUFS;
ee688b00 1255
86e8cf98
JB		 1256 if (WARN_ON(!state))
1257 return -EINVAL;
ee688b00 1258
1b8ec87a 1259 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1260 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1261 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1262 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1263 cfg80211_rdev_list_generation))
8fdc621d
JB		 1264 goto nla_put_failure;
1265
3bb20556
JB		 1266 if (cmd != NL80211_CMD_NEW_WIPHY)
1267 goto finish;
1268
86e8cf98 1269 switch (state->split_start) {
3713b4e3
JB		 1270 case 0:
1271 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1272 rdev->wiphy.retry_short) ||
3713b4e3 1273 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1274 rdev->wiphy.retry_long) ||
3713b4e3 1275 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1276 rdev->wiphy.frag_threshold) ||
3713b4e3 1277 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1278 rdev->wiphy.rts_threshold) ||
3713b4e3 1279 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1280 rdev->wiphy.coverage_class) ||
3713b4e3 1281 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1282 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1283 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1284 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1285 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1286 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1287 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1288 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1289 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1290 rdev->wiphy.max_match_sets))
9360ffd1 1291 goto nla_put_failure;
3713b4e3 1292
1b8ec87a 1293 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1294 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1295 goto nla_put_failure;
1b8ec87a 1296 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1297 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1298 goto nla_put_failure;
1b8ec87a 1299 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1300 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1301 goto nla_put_failure;
1b8ec87a 1302 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1303 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1304 goto nla_put_failure;
1b8ec87a 1305 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1306 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1307 goto nla_put_failure;
1b8ec87a 1308 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1309 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1310 goto nla_put_failure;
86e8cf98
JB		 1311 state->split_start++;
1312 if (state->split)
3713b4e3
JB		 1313 break;
1314 case 1:
1315 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1316 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1317 rdev->wiphy.cipher_suites))
3713b4e3 1318 goto nla_put_failure;
4745fc09 1319
3713b4e3 1320 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1321 rdev->wiphy.max_num_pmkids))
3713b4e3 1322 goto nla_put_failure;
b23aa676 1323
1b8ec87a 1324 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1325 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1326 goto nla_put_failure;
b23aa676 1327
3713b4e3 1328 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1329 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1330 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1331 rdev->wiphy.available_antennas_rx))
9360ffd1 1332 goto nla_put_failure;
b23aa676 1333
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1335 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1336 rdev->wiphy.probe_resp_offload))
3713b4e3 1337 goto nla_put_failure;
8fdc621d 1338
1b8ec87a
ZG		 1339 if ((rdev->wiphy.available_antennas_tx ||
1340 rdev->wiphy.available_antennas_rx) &&
1341 rdev->ops->get_antenna) {
3713b4e3
JB		 1342 u32 tx_ant = 0, rx_ant = 0;
1343 int res;
1b8ec87a 1344 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1345 if (!res) {
1346 if (nla_put_u32(msg,
1347 NL80211_ATTR_WIPHY_ANTENNA_TX,
1348 tx_ant) ||
1349 nla_put_u32(msg,
1350 NL80211_ATTR_WIPHY_ANTENNA_RX,
1351 rx_ant))
1352 goto nla_put_failure;
1353 }
1354 }
a293911d 1355
86e8cf98
JB		 1356 state->split_start++;
1357 if (state->split)
3713b4e3
JB		 1358 break;
1359 case 2:
1360 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1361 rdev->wiphy.interface_modes))
3713b4e3 1362 goto nla_put_failure;
86e8cf98
JB		 1363 state->split_start++;
1364 if (state->split)
3713b4e3
JB		 1365 break;
1366 case 3:
1367 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1368 if (!nl_bands)
1369 goto nla_put_failure;
f7ca38df 1370
86e8cf98
JB		 1371 for (band = state->band_start;
1372 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1373 struct ieee80211_supported_band *sband;
2e161f78 1374
1b8ec87a 1375 sband = rdev->wiphy.bands[band];
2e161f78 1376
3713b4e3
JB		 1377 if (!sband)
1378 continue;
1379
1380 nl_band = nla_nest_start(msg, band);
1381 if (!nl_band)
2e161f78 1382 goto nla_put_failure;
3713b4e3 1383
86e8cf98 1384 switch (state->chan_start) {
3713b4e3
JB		 1385 case 0:
1386 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1387 goto nla_put_failure;
86e8cf98
JB		 1388 state->chan_start++;
1389 if (state->split)
3713b4e3
JB		 1390 break;
1391 default:
1392 /* add frequencies */
1393 nl_freqs = nla_nest_start(
1394 msg, NL80211_BAND_ATTR_FREQS);
1395 if (!nl_freqs)
1396 goto nla_put_failure;
1397
86e8cf98 1398 for (i = state->chan_start - 1;
3713b4e3
JB		 1399 i < sband->n_channels;
1400 i++) {
1401 nl_freq = nla_nest_start(msg, i);
1402 if (!nl_freq)
1403 goto nla_put_failure;
1404
1405 chan = &sband->channels[i];
1406
86e8cf98
JB		 1407 if (nl80211_msg_put_channel(
1408 msg, chan,
1409 state->split))
3713b4e3
JB		 1410 goto nla_put_failure;
1411
1412 nla_nest_end(msg, nl_freq);
86e8cf98 1413 if (state->split)
3713b4e3
JB		 1414 break;
1415 }
1416 if (i < sband->n_channels)
86e8cf98 1417 state->chan_start = i + 2;
3713b4e3 1418 else
86e8cf98 1419 state->chan_start = 0;
3713b4e3
JB		 1420 nla_nest_end(msg, nl_freqs);
1421 }
1422
1423 nla_nest_end(msg, nl_band);
1424
86e8cf98 1425 if (state->split) {
3713b4e3 1426 /* start again here */
86e8cf98 1427 if (state->chan_start)
3713b4e3
JB		 1428 band--;
1429 break;
2e161f78 1430 }
2e161f78 1431 }
3713b4e3 1432 nla_nest_end(msg, nl_bands);
2e161f78 1433
3713b4e3 1434 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1435 state->band_start = band + 1;
3713b4e3 1436 else
86e8cf98 1437 state->band_start = 0;
74b70a4e 1438
3713b4e3 1439 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1440 if (state->band_start == 0 && state->chan_start == 0)
1441 state->split_start++;
1442 if (state->split)
3713b4e3
JB		 1443 break;
1444 case 4:
1445 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1446 if (!nl_cmds)
2e161f78
JB		 1447 goto nla_put_failure;
1448
3713b4e3
JB		 1449 i = 0;
1450#define CMD(op, n) \
1451 do { \
1b8ec87a 1452 if (rdev->ops->op) { \
3713b4e3
JB		 1453 i++; \
1454 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1455 goto nla_put_failure; \
1456 } \
1457 } while (0)
1458
1459 CMD(add_virtual_intf, NEW_INTERFACE);
1460 CMD(change_virtual_intf, SET_INTERFACE);
1461 CMD(add_key, NEW_KEY);
1462 CMD(start_ap, START_AP);
1463 CMD(add_station, NEW_STATION);
1464 CMD(add_mpath, NEW_MPATH);
1465 CMD(update_mesh_config, SET_MESH_CONFIG);
1466 CMD(change_bss, SET_BSS);
1467 CMD(auth, AUTHENTICATE);
1468 CMD(assoc, ASSOCIATE);
1469 CMD(deauth, DEAUTHENTICATE);
1470 CMD(disassoc, DISASSOCIATE);
1471 CMD(join_ibss, JOIN_IBSS);
1472 CMD(join_mesh, JOIN_MESH);
1473 CMD(set_pmksa, SET_PMKSA);
1474 CMD(del_pmksa, DEL_PMKSA);
1475 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1476 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1477 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1478 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1479 CMD(mgmt_tx, FRAME);
1480 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1481 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1482 i++;
1483 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1484 goto nla_put_failure;
2e161f78 1485 }
1b8ec87a
ZG		 1486 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1487 rdev->ops->join_mesh) {
3713b4e3
JB		 1488 i++;
1489 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1490 goto nla_put_failure;
1491 }
1492 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1493 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1494 CMD(tdls_mgmt, TDLS_MGMT);
1495 CMD(tdls_oper, TDLS_OPER);
1496 }
1b8ec87a 1497 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1498 CMD(sched_scan_start, START_SCHED_SCAN);
1499 CMD(probe_client, PROBE_CLIENT);
1500 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1501 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1502 i++;
1503 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1504 goto nla_put_failure;
1505 }
1506 CMD(start_p2p_device, START_P2P_DEVICE);
1507 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1508#ifdef CONFIG_NL80211_TESTMODE
1509 CMD(testmode_cmd, TESTMODE);
1510#endif
86e8cf98 1511 if (state->split) {
5de17984
AS		 1512 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1513 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1514 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1515 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1516 CMD(set_qos_map, SET_QOS_MAP);
960d01ac
JB		 1517 if (rdev->wiphy.flags &
1518 WIPHY_FLAG_SUPPORTS_WMM_ADMISSION)
1519 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1520 }
02df00eb 1521 /* add into the if now */
3713b4e3 1522#undef CMD
ff1b6e69 1523
1b8ec87a 1524 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1525 i++;
1526 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1527 goto nla_put_failure;
ff1b6e69
JB		 1528 }
1529
1b8ec87a 1530 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1531 i++;
1532 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1533 goto nla_put_failure;
1534 }
1535
1536 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1537 state->split_start++;
1538 if (state->split)
3713b4e3
JB		 1539 break;
1540 case 5:
1b8ec87a
ZG		 1541 if (rdev->ops->remain_on_channel &&
1542 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1543 nla_put_u32(msg,
1544 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1545 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1546 goto nla_put_failure;
1547
1b8ec87a 1548 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1549 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1550 goto nla_put_failure;
1551
1552 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1553 goto nla_put_failure;
86e8cf98
JB		 1554 state->split_start++;
1555 if (state->split)
3713b4e3
JB		 1556 break;
1557 case 6:
1558#ifdef CONFIG_PM
1b8ec87a 1559 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1560 goto nla_put_failure;
86e8cf98
JB		 1561 state->split_start++;
1562 if (state->split)
3713b4e3
JB		 1563 break;
1564#else
86e8cf98 1565 state->split_start++;
dfb89c56 1566#endif
3713b4e3
JB		 1567 case 7:
1568 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1569 rdev->wiphy.software_iftypes))
3713b4e3 1570 goto nla_put_failure;
ff1b6e69 1571
1b8ec87a 1572 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1573 state->split))
3713b4e3 1574 goto nla_put_failure;
7527a782 1575
86e8cf98
JB		 1576 state->split_start++;
1577 if (state->split)
3713b4e3
JB		 1578 break;
1579 case 8:
1b8ec87a 1580 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1581 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1582 rdev->wiphy.ap_sme_capa))
3713b4e3 1583 goto nla_put_failure;
7527a782 1584
1b8ec87a 1585 features = rdev->wiphy.features;
fe1abafd
JB		 1586 /*
1587 * We can only add the per-channel limit information if the
1588 * dump is split, otherwise it makes it too big. Therefore
1589 * only advertise it in that case.
1590 */
86e8cf98 1591 if (state->split)
fe1abafd
JB		 1592 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1593 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1594 goto nla_put_failure;
562a7480 1595
1b8ec87a 1596 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1597 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1598 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1599 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1600 goto nla_put_failure;
1f074bd8 1601
1b8ec87a
ZG		 1602 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1603 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1604 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1605 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1606 goto nla_put_failure;
7e7c8926 1607
3713b4e3
JB		 1608 /*
1609 * Any information below this point is only available to
1610 * applications that can deal with it being split. This
1611 * helps ensure that newly added capabilities don't break
1612 * older tools by overrunning their buffers.
1613 *
1614 * We still increment split_start so that in the split
1615 * case we'll continue with more data in the next round,
1616 * but break unconditionally so unsplit data stops here.
1617 */
86e8cf98 1618 state->split_start++;
3713b4e3
JB		 1619 break;
1620 case 9:
1b8ec87a 1621 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1622 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1623 rdev->wiphy.extended_capabilities_len,
1624 rdev->wiphy.extended_capabilities) ||
fe1abafd 1625 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1626 rdev->wiphy.extended_capabilities_len,
1627 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1628 goto nla_put_failure;
a50df0c4 1629
1b8ec87a 1630 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1631 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1632 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1633 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1634 goto nla_put_failure;
1635
be29b99a
AK		 1636 state->split_start++;
1637 break;
1638 case 10:
1b8ec87a 1639 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1640 goto nla_put_failure;
1641
1b8ec87a 1642 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1643 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1644 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1645 goto nla_put_failure;
b43504cf 1646
1b8ec87a 1647 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1648 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1649 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1650 goto nla_put_failure;
1651
ad7e718c
JB		 1652 state->split_start++;
1653 break;
1654 case 11:
1b8ec87a 1655 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1656 const struct nl80211_vendor_cmd_info *info;
1657 struct nlattr *nested;
1658
1659 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1660 if (!nested)
1661 goto nla_put_failure;
1662
1b8ec87a
ZG		 1663 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1664 info = &rdev->wiphy.vendor_commands[i].info;
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 }
1670
1b8ec87a 1671 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1672 const struct nl80211_vendor_cmd_info *info;
1673 struct nlattr *nested;
ad7e718c 1674
567ffc35
JB		 1675 nested = nla_nest_start(msg,
1676 NL80211_ATTR_VENDOR_EVENTS);
1677 if (!nested)
ad7e718c 1678 goto nla_put_failure;
567ffc35 1679
1b8ec87a
ZG		 1680 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1681 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1682 if (nla_put(msg, i + 1, sizeof(*info), info))
1683 goto nla_put_failure;
1684 }
1685 nla_nest_end(msg, nested);
1686 }
9a774c78
AO		 1687 state->split_start++;
1688 break;
1689 case 12:
1690 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1691 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1692 rdev->wiphy.max_num_csa_counters))
1693 goto nla_put_failure;
01e0daa4 1694
3713b4e3 1695 /* done */
86e8cf98 1696 state->split_start = 0;
3713b4e3
JB		 1697 break;
1698 }
3bb20556 1699 finish:
55682965
JB		 1700 return genlmsg_end(msg, hdr);
1701
1702 nla_put_failure:
bc3ed28c
TG		 1703 genlmsg_cancel(msg, hdr);
1704 return -EMSGSIZE;
55682965
JB		 1705}
1706
86e8cf98
JB		 1707static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1708 struct netlink_callback *cb,
1709 struct nl80211_dump_wiphy_state *state)
1710{
1711 struct nlattr **tb = nl80211_fam.attrbuf;
1712 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1713 tb, nl80211_fam.maxattr, nl80211_policy);
1714 /* ignore parse errors for backward compatibility */
1715 if (ret)
1716 return 0;
1717
1718 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1719 if (tb[NL80211_ATTR_WIPHY])
1720 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1721 if (tb[NL80211_ATTR_WDEV])
1722 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1723 if (tb[NL80211_ATTR_IFINDEX]) {
1724 struct net_device *netdev;
1725 struct cfg80211_registered_device *rdev;
1726 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1727
7f2b8562 1728 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1729 if (!netdev)
1730 return -ENODEV;
1731 if (netdev->ieee80211_ptr) {
f26cbf40 1732 rdev = wiphy_to_rdev(
86e8cf98
JB		 1733 netdev->ieee80211_ptr->wiphy);
1734 state->filter_wiphy = rdev->wiphy_idx;
1735 }
86e8cf98
JB		 1736 }
1737
1738 return 0;
1739}
1740
55682965
JB		 1741static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1742{
645e77de 1743 int idx = 0, ret;
86e8cf98 1744 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1745 struct cfg80211_registered_device *rdev;
3a5a423b 1746
5fe231e8 1747 rtnl_lock();
86e8cf98
JB		 1748 if (!state) {
1749 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1750 if (!state) {
1751 rtnl_unlock();
86e8cf98 1752 return -ENOMEM;
3713b4e3 1753 }
86e8cf98
JB		 1754 state->filter_wiphy = -1;
1755 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1756 if (ret) {
1757 kfree(state);
1758 rtnl_unlock();
1759 return ret;
3713b4e3 1760 }
86e8cf98 1761 cb->args[0] = (long)state;
3713b4e3
JB		 1762 }
1763
1b8ec87a
ZG		 1764 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1765 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1766 continue;
86e8cf98 1767 if (++idx <= state->start)
55682965 1768 continue;
86e8cf98 1769 if (state->filter_wiphy != -1 &&
1b8ec87a 1770 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1771 continue;
1772 /* attempt to fit multiple wiphy data chunks into the skb */
1773 do {
3bb20556
JB		 1774 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1775 skb,
3713b4e3
JB		 1776 NETLINK_CB(cb->skb).portid,
1777 cb->nlh->nlmsg_seq,
86e8cf98 1778 NLM_F_MULTI, state);
3713b4e3
JB		 1779 if (ret < 0) {
1780 /*
1781 * If sending the wiphy data didn't fit (ENOBUFS
1782 * or EMSGSIZE returned), this SKB is still
1783 * empty (so it's not too big because another
1784 * wiphy dataset is already in the skb) and
1785 * we've not tried to adjust the dump allocation
1786 * yet ... then adjust the alloc size to be
1787 * bigger, and return 1 but with the empty skb.
1788 * This results in an empty message being RX'ed
1789 * in userspace, but that is ignored.
1790 *
1791 * We can then retry with the larger buffer.
1792 */
1793 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1794 !skb->len && !state->split &&
3713b4e3
JB		 1795 cb->min_dump_alloc < 4096) {
1796 cb->min_dump_alloc = 4096;
f12cb289 1797 state->split_start = 0;
d98cae64 1798 rtnl_unlock();
3713b4e3
JB		 1799 return 1;
1800 }
1801 idx--;
1802 break;
645e77de 1803 }
86e8cf98 1804 } while (state->split_start > 0);
3713b4e3 1805 break;
55682965 1806 }
5fe231e8 1807 rtnl_unlock();
55682965 1808
86e8cf98 1809 state->start = idx;
55682965
JB		 1810
1811 return skb->len;
1812}
1813
86e8cf98
JB		 1814static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1815{
1816 kfree((void *)cb->args[0]);
1817 return 0;
1818}
1819
55682965
JB		 1820static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1821{
1822 struct sk_buff *msg;
1b8ec87a 1823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1824 struct nl80211_dump_wiphy_state state = {};
55682965 1825
645e77de 1826 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1827 if (!msg)
4c476991 1828 return -ENOMEM;
55682965 1829
3bb20556
JB		 1830 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1831 info->snd_portid, info->snd_seq, 0,
86e8cf98 1832 &state) < 0) {
4c476991
JB		 1833 nlmsg_free(msg);
1834 return -ENOBUFS;
1835 }
55682965 1836
134e6375 1837 return genlmsg_reply(msg, info);
55682965
JB		 1838}
1839
31888487
JM		 1840static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1841 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1842 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1843 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1844 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1845 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1846};
1847
1848static int parse_txq_params(struct nlattr *tb[],
1849 struct ieee80211_txq_params *txq_params)
1850{
a3304b0a 1851 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1852 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1853 !tb[NL80211_TXQ_ATTR_AIFS])
1854 return -EINVAL;
1855
a3304b0a 1856 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1857 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1858 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1859 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1860 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1861
a3304b0a
JB		 1862 if (txq_params->ac >= NL80211_NUM_ACS)
1863 return -EINVAL;
1864
31888487
JM		 1865 return 0;
1866}
1867
f444de05
JB		 1868static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1869{
1870 /*
cc1d2806
JB		 1871 * You can only set the channel explicitly for WDS interfaces,
1872 * all others have their channel managed via their respective
1873 * "establish a connection" command (connect, join, ...)
1874 *
1875 * For AP/GO and mesh mode, the channel can be set with the
1876 * channel userspace API, but is only stored and passed to the
1877 * low-level driver when the AP starts or the mesh is joined.
1878 * This is for backward compatibility, userspace can also give
1879 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1880 *
1881 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1882 * whatever else is going on, so they have their own special
1883 * operation to set the monitor channel if possible.
f444de05
JB		 1884 */
1885 return !wdev ||
1886 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1887 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1888 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1889 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1890}
1891
683b6d3b
JB		 1892static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1893 struct genl_info *info,
1894 struct cfg80211_chan_def *chandef)
1895{
dbeca2ea 1896 u32 control_freq;
683b6d3b
JB		 1897
1898 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1899 return -EINVAL;
1900
1901 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1902
1903 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1904 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1905 chandef->center_freq1 = control_freq;
1906 chandef->center_freq2 = 0;
683b6d3b
JB		 1907
1908 /* Primary channel not allowed */
1909 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1910 return -EINVAL;
1911
3d9d1d66
JB		 1912 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1913 enum nl80211_channel_type chantype;
1914
1915 chantype = nla_get_u32(
1916 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1917
1918 switch (chantype) {
1919 case NL80211_CHAN_NO_HT:
1920 case NL80211_CHAN_HT20:
1921 case NL80211_CHAN_HT40PLUS:
1922 case NL80211_CHAN_HT40MINUS:
1923 cfg80211_chandef_create(chandef, chandef->chan,
1924 chantype);
1925 break;
1926 default:
1927 return -EINVAL;
1928 }
1929 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1930 chandef->width =
1931 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1932 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1933 chandef->center_freq1 =
1934 nla_get_u32(
1935 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1936 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1937 chandef->center_freq2 =
1938 nla_get_u32(
1939 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1940 }
1941
9f5e8f6e 1942 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1943 return -EINVAL;
1944
9f5e8f6e
JB		 1945 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1946 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1947 return -EINVAL;
1948
2f301ab2
SW		 1949 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1950 chandef->width == NL80211_CHAN_WIDTH_10) &&
1951 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1952 return -EINVAL;
1953
683b6d3b
JB		 1954 return 0;
1955}
1956
f444de05 1957static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1958 struct net_device *dev,
f444de05
JB		 1959 struct genl_info *info)
1960{
683b6d3b 1961 struct cfg80211_chan_def chandef;
f444de05 1962 int result;
e8c9bd5b 1963 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1964 struct wireless_dev *wdev = NULL;
e8c9bd5b 1965
e16821bc
JM		 1966 if (dev)
1967 wdev = dev->ieee80211_ptr;
f444de05
JB		 1968 if (!nl80211_can_set_dev_channel(wdev))
1969 return -EOPNOTSUPP;
e16821bc
JM		 1970 if (wdev)
1971 iftype = wdev->iftype;
f444de05 1972
683b6d3b
JB		 1973 result = nl80211_parse_chandef(rdev, info, &chandef);
1974 if (result)
1975 return result;
f444de05 1976
e8c9bd5b 1977 switch (iftype) {
aa430da4
JB		 1978 case NL80211_IFTYPE_AP:
1979 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1980 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1981 result = -EINVAL;
1982 break;
1983 }
e16821bc
JM		 1984 if (wdev->beacon_interval) {
1985 if (!dev || !rdev->ops->set_ap_chanwidth ||
1986 !(rdev->wiphy.features &
1987 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1988 result = -EBUSY;
1989 break;
1990 }
1991
1992 /* Only allow dynamic channel width changes */
1993 if (chandef.chan != wdev->preset_chandef.chan) {
1994 result = -EBUSY;
1995 break;
1996 }
1997 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1998 if (result)
1999 break;
2000 }
683b6d3b 2001 wdev->preset_chandef = chandef;
aa430da4
JB		 2002 result = 0;
2003 break;
cc1d2806 2004 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2005 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2006 break;
e8c9bd5b 2007 case NL80211_IFTYPE_MONITOR:
683b6d3b 2008 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2009 break;
aa430da4 2010 default:
e8c9bd5b 2011 result = -EINVAL;
f444de05 2012 }
f444de05
JB		 2013
2014 return result;
2015}
2016
2017static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2018{
4c476991
JB		 2019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2020 struct net_device *netdev = info->user_ptr[1];
f444de05 2021
e16821bc 2022 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2023}
2024
e8347eba
BJ		 2025static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2026{
43b19952
JB		 2027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2028 struct net_device *dev = info->user_ptr[1];
2029 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2030 const u8 *bssid;
e8347eba
BJ		 2031
2032 if (!info->attrs[NL80211_ATTR_MAC])
2033 return -EINVAL;
2034
43b19952
JB		 2035 if (netif_running(dev))
2036 return -EBUSY;
e8347eba 2037
43b19952
JB		 2038 if (!rdev->ops->set_wds_peer)
2039 return -EOPNOTSUPP;
e8347eba 2040
43b19952
JB		 2041 if (wdev->iftype != NL80211_IFTYPE_WDS)
2042 return -EOPNOTSUPP;
e8347eba
BJ		 2043
2044 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2045 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2046}
2047
2048
55682965
JB		 2049static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2050{
2051 struct cfg80211_registered_device *rdev;
f444de05
JB		 2052 struct net_device *netdev = NULL;
2053 struct wireless_dev *wdev;
a1e567c8 2054 int result = 0, rem_txq_params = 0;
31888487 2055 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2056 u32 changed;
2057 u8 retry_short = 0, retry_long = 0;
2058 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2059 u8 coverage_class = 0;
55682965 2060
5fe231e8
JB		 2061 ASSERT_RTNL();
2062
f444de05
JB		 2063 /*
2064 * Try to find the wiphy and netdev. Normally this
2065 * function shouldn't need the netdev, but this is
2066 * done for backward compatibility -- previously
2067 * setting the channel was done per wiphy, but now
2068 * it is per netdev. Previous userland like hostapd
2069 * also passed a netdev to set_wiphy, so that it is
2070 * possible to let that go to the right netdev!
2071 */
4bbf4d56 2072
f444de05
JB		 2073 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2074 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2075
7f2b8562 2076 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2077 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2078 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2079 else
f444de05 2080 netdev = NULL;
4bbf4d56
JB		 2081 }
2082
f444de05 2083 if (!netdev) {
878d9ec7
JB		 2084 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2085 info->attrs);
5fe231e8 2086 if (IS_ERR(rdev))
4c476991 2087 return PTR_ERR(rdev);
f444de05
JB		 2088 wdev = NULL;
2089 netdev = NULL;
2090 result = 0;
71fe96bf 2091 } else
f444de05 2092 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2093
2094 /*
2095 * end workaround code, by now the rdev is available
2096 * and locked, and wdev may or may not be NULL.
2097 */
4bbf4d56
JB		 2098
2099 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2100 result = cfg80211_dev_rename(
2101 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2102
4bbf4d56 2103 if (result)
7f2b8562 2104 return result;
31888487
JM		 2105
2106 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2107 struct ieee80211_txq_params txq_params;
2108 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2109
7f2b8562
YX		 2110 if (!rdev->ops->set_txq_params)
2111 return -EOPNOTSUPP;
31888487 2112
7f2b8562
YX		 2113 if (!netdev)
2114 return -EINVAL;
f70f01c2 2115
133a3ff2 2116 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2117 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2118 return -EINVAL;
133a3ff2 2119
7f2b8562
YX		 2120 if (!netif_running(netdev))
2121 return -ENETDOWN;
2b5f8b0b 2122
31888487
JM		 2123 nla_for_each_nested(nl_txq_params,
2124 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2125 rem_txq_params) {
ae811e21
JB		 2126 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2127 nla_data(nl_txq_params),
2128 nla_len(nl_txq_params),
2129 txq_params_policy);
2130 if (result)
2131 return result;
31888487
JM		 2132 result = parse_txq_params(tb, &txq_params);
2133 if (result)
7f2b8562 2134 return result;
31888487 2135
e35e4d28
HG		 2136 result = rdev_set_txq_params(rdev, netdev,
2137 &txq_params);
31888487 2138 if (result)
7f2b8562 2139 return result;
31888487
JM		 2140 }
2141 }
55682965 2142
72bdcf34 2143 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2144 result = __nl80211_set_channel(
2145 rdev,
2146 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2147 info);
72bdcf34 2148 if (result)
7f2b8562 2149 return result;
72bdcf34
JM		 2150 }
2151
98d2ff8b 2152 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2153 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2154 enum nl80211_tx_power_setting type;
2155 int idx, mbm = 0;
2156
c8442118
JB		 2157 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2158 txp_wdev = NULL;
2159
7f2b8562
YX		 2160 if (!rdev->ops->set_tx_power)
2161 return -EOPNOTSUPP;
98d2ff8b
JO		 2162
2163 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2164 type = nla_get_u32(info->attrs[idx]);
2165
2166 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2167 (type != NL80211_TX_POWER_AUTOMATIC))
2168 return -EINVAL;
98d2ff8b
JO		 2169
2170 if (type != NL80211_TX_POWER_AUTOMATIC) {
2171 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2172 mbm = nla_get_u32(info->attrs[idx]);
2173 }
2174
c8442118 2175 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2176 if (result)
7f2b8562 2177 return result;
98d2ff8b
JO		 2178 }
2179
afe0cbf8
BR		 2180 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2181 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2182 u32 tx_ant, rx_ant;
7f531e03
BR		 2183 if ((!rdev->wiphy.available_antennas_tx &&
2184 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2185 !rdev->ops->set_antenna)
2186 return -EOPNOTSUPP;
afe0cbf8
BR		 2187
2188 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2189 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2190
a7ffac95 2191 /* reject antenna configurations which don't match the
7f531e03
BR		 2192 * available antenna masks, except for the "all" mask */
2193 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2194 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2195 return -EINVAL;
a7ffac95 2196
7f531e03
BR		 2197 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2198 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2199
e35e4d28 2200 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2201 if (result)
7f2b8562 2202 return result;
afe0cbf8
BR		 2203 }
2204
b9a5f8ca
JM		 2205 changed = 0;
2206
2207 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2208 retry_short = nla_get_u8(
2209 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2210 if (retry_short == 0)
2211 return -EINVAL;
2212
b9a5f8ca
JM		 2213 changed |= WIPHY_PARAM_RETRY_SHORT;
2214 }
2215
2216 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2217 retry_long = nla_get_u8(
2218 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2219 if (retry_long == 0)
2220 return -EINVAL;
2221
b9a5f8ca
JM		 2222 changed |= WIPHY_PARAM_RETRY_LONG;
2223 }
2224
2225 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2226 frag_threshold = nla_get_u32(
2227 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2228 if (frag_threshold < 256)
2229 return -EINVAL;
2230
b9a5f8ca
JM		 2231 if (frag_threshold != (u32) -1) {
2232 /*
2233 * Fragments (apart from the last one) are required to
2234 * have even length. Make the fragmentation code
2235 * simpler by stripping LSB should someone try to use
2236 * odd threshold value.
2237 */
2238 frag_threshold &= ~0x1;
2239 }
2240 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2241 }
2242
2243 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2244 rts_threshold = nla_get_u32(
2245 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2246 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2247 }
2248
81077e82 2249 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2250 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2251 return -EINVAL;
2252
81077e82
LT		 2253 coverage_class = nla_get_u8(
2254 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2255 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2256 }
2257
3057dbfd
LB		 2258 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2259 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2260 return -EOPNOTSUPP;
2261
2262 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2263 }
2264
b9a5f8ca
JM		 2265 if (changed) {
2266 u8 old_retry_short, old_retry_long;
2267 u32 old_frag_threshold, old_rts_threshold;
81077e82 2268 u8 old_coverage_class;
b9a5f8ca 2269
7f2b8562
YX		 2270 if (!rdev->ops->set_wiphy_params)
2271 return -EOPNOTSUPP;
b9a5f8ca
JM		 2272
2273 old_retry_short = rdev->wiphy.retry_short;
2274 old_retry_long = rdev->wiphy.retry_long;
2275 old_frag_threshold = rdev->wiphy.frag_threshold;
2276 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2277 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2278
2279 if (changed & WIPHY_PARAM_RETRY_SHORT)
2280 rdev->wiphy.retry_short = retry_short;
2281 if (changed & WIPHY_PARAM_RETRY_LONG)
2282 rdev->wiphy.retry_long = retry_long;
2283 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2284 rdev->wiphy.frag_threshold = frag_threshold;
2285 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2286 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2287 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2288 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2289
e35e4d28 2290 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2291 if (result) {
2292 rdev->wiphy.retry_short = old_retry_short;
2293 rdev->wiphy.retry_long = old_retry_long;
2294 rdev->wiphy.frag_threshold = old_frag_threshold;
2295 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2296 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2297 }
2298 }
7f2b8562 2299 return 0;
55682965
JB		 2300}
2301
71bbc994
JB		 2302static inline u64 wdev_id(struct wireless_dev *wdev)
2303{
2304 return (u64)wdev->identifier |
f26cbf40 2305 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2306}
55682965 2307
683b6d3b 2308static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2309 const struct cfg80211_chan_def *chandef)
683b6d3b 2310{
9f5e8f6e 2311 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2312
683b6d3b
JB		 2313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2314 chandef->chan->center_freq))
2315 return -ENOBUFS;
3d9d1d66
JB		 2316 switch (chandef->width) {
2317 case NL80211_CHAN_WIDTH_20_NOHT:
2318 case NL80211_CHAN_WIDTH_20:
2319 case NL80211_CHAN_WIDTH_40:
2320 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2321 cfg80211_get_chandef_type(chandef)))
2322 return -ENOBUFS;
2323 break;
2324 default:
2325 break;
2326 }
2327 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2328 return -ENOBUFS;
2329 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2330 return -ENOBUFS;
2331 if (chandef->center_freq2 &&
2332 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2333 return -ENOBUFS;
2334 return 0;
2335}
2336
15e47304 2337static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2338 struct cfg80211_registered_device *rdev,
72fb2abc 2339 struct wireless_dev *wdev)
55682965 2340{
72fb2abc 2341 struct net_device *dev = wdev->netdev;
55682965
JB		 2342 void *hdr;
2343
15e47304 2344 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2345 if (!hdr)
2346 return -1;
2347
72fb2abc
JB		 2348 if (dev &&
2349 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2350 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2351 goto nla_put_failure;
2352
2353 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2354 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2355 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2356 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2357 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2358 rdev->devlist_generation ^
2359 (cfg80211_rdev_list_generation << 2)))
2360 goto nla_put_failure;
f5ea9120 2361
5b7ccaf3 2362 if (rdev->ops->get_channel) {
683b6d3b
JB		 2363 int ret;
2364 struct cfg80211_chan_def chandef;
2365
2366 ret = rdev_get_channel(rdev, wdev, &chandef);
2367 if (ret == 0) {
2368 if (nl80211_send_chandef(msg, &chandef))
2369 goto nla_put_failure;
2370 }
d91df0e3
PF		 2371 }
2372
b84e7a05
AQ		 2373 if (wdev->ssid_len) {
2374 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2375 goto nla_put_failure;
2376 }
2377
55682965
JB		 2378 return genlmsg_end(msg, hdr);
2379
2380 nla_put_failure:
bc3ed28c
TG		 2381 genlmsg_cancel(msg, hdr);
2382 return -EMSGSIZE;
55682965
JB		 2383}
2384
2385static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2386{
2387 int wp_idx = 0;
2388 int if_idx = 0;
2389 int wp_start = cb->args[0];
2390 int if_start = cb->args[1];
f5ea9120 2391 struct cfg80211_registered_device *rdev;
55682965
JB		 2392 struct wireless_dev *wdev;
2393
5fe231e8 2394 rtnl_lock();
f5ea9120
JB		 2395 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2396 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2397 continue;
bba95fef
JB		 2398 if (wp_idx < wp_start) {
2399 wp_idx++;
55682965 2400 continue;
bba95fef 2401 }
55682965
JB		 2402 if_idx = 0;
2403
89a54e48 2404 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2405 if (if_idx < if_start) {
2406 if_idx++;
55682965 2407 continue;
bba95fef 2408 }
15e47304 2409 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2410 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2411 rdev, wdev) < 0) {
bba95fef
JB		 2412 goto out;
2413 }
2414 if_idx++;
55682965 2415 }
bba95fef
JB		 2416
2417 wp_idx++;
55682965 2418 }
bba95fef 2419 out:
5fe231e8 2420 rtnl_unlock();
55682965
JB		 2421
2422 cb->args[0] = wp_idx;
2423 cb->args[1] = if_idx;
2424
2425 return skb->len;
2426}
2427
2428static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2429{
2430 struct sk_buff *msg;
1b8ec87a 2431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2432 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2433
fd2120ca 2434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2435 if (!msg)
4c476991 2436 return -ENOMEM;
55682965 2437
15e47304 2438 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2439 rdev, wdev) < 0) {
4c476991
JB		 2440 nlmsg_free(msg);
2441 return -ENOBUFS;
2442 }
55682965 2443
134e6375 2444 return genlmsg_reply(msg, info);
55682965
JB		 2445}
2446
66f7ac50
MW		 2447static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2448 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2449 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2450 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2451 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2452 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2453 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2454};
2455
2456static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2457{
2458 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2459 int flag;
2460
2461 *mntrflags = 0;
2462
2463 if (!nla)
2464 return -EINVAL;
2465
2466 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2467 nla, mntr_flags_policy))
2468 return -EINVAL;
2469
2470 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2471 if (flags[flag])
2472 *mntrflags |= (1<<flag);
2473
2474 return 0;
2475}
2476
9bc383de 2477static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2478 struct net_device *netdev, u8 use_4addr,
2479 enum nl80211_iftype iftype)
9bc383de 2480{
ad4bb6f8 2481 if (!use_4addr) {
f350a0a8 2482 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2483 return -EBUSY;
9bc383de 2484 return 0;
ad4bb6f8 2485 }
9bc383de
JB		 2486
2487 switch (iftype) {
2488 case NL80211_IFTYPE_AP_VLAN:
2489 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2490 return 0;
2491 break;
2492 case NL80211_IFTYPE_STATION:
2493 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2494 return 0;
2495 break;
2496 default:
2497 break;
2498 }
2499
2500 return -EOPNOTSUPP;
2501}
2502
55682965
JB		 2503static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2504{
4c476991 2505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2506 struct vif_params params;
e36d56b6 2507 int err;
04a773ad 2508 enum nl80211_iftype otype, ntype;
4c476991 2509 struct net_device *dev = info->user_ptr[1];
92ffe055 2510 u32 _flags, *flags = NULL;
ac7f9cfa 2511 bool change = false;
55682965 2512
2ec600d6
LCC		 2513 memset(&params, 0, sizeof(params));
2514
04a773ad 2515 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2516
723b038d 2517 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2518 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2519 if (otype != ntype)
ac7f9cfa 2520 change = true;
4c476991
JB		 2521 if (ntype > NL80211_IFTYPE_MAX)
2522 return -EINVAL;
723b038d
JB		 2523 }
2524
92ffe055 2525 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2526 struct wireless_dev *wdev = dev->ieee80211_ptr;
2527
4c476991
JB		 2528 if (ntype != NL80211_IFTYPE_MESH_POINT)
2529 return -EINVAL;
29cbe68c
JB		 2530 if (netif_running(dev))
2531 return -EBUSY;
2532
2533 wdev_lock(wdev);
2534 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2535 IEEE80211_MAX_MESH_ID_LEN);
2536 wdev->mesh_id_up_len =
2537 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2538 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2539 wdev->mesh_id_up_len);
2540 wdev_unlock(wdev);
2ec600d6
LCC		 2541 }
2542
8b787643
FF		 2543 if (info->attrs[NL80211_ATTR_4ADDR]) {
2544 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2545 change = true;
ad4bb6f8 2546 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2547 if (err)
4c476991 2548 return err;
8b787643
FF		 2549 } else {
2550 params.use_4addr = -1;
2551 }
2552
92ffe055 2553 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2554 if (ntype != NL80211_IFTYPE_MONITOR)
2555 return -EINVAL;
92ffe055
JB		 2556 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2557 &_flags);
ac7f9cfa 2558 if (err)
4c476991 2559 return err;
ac7f9cfa
JB		 2560
2561 flags = &_flags;
2562 change = true;
92ffe055 2563 }
3b85875a 2564
18003297 2565 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2566 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2567 return -EOPNOTSUPP;
2568
ac7f9cfa 2569 if (change)
3d54d255 2570 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2571 else
2572 err = 0;
60719ffd 2573
9bc383de
JB		 2574 if (!err && params.use_4addr != -1)
2575 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2576
55682965
JB		 2577 return err;
2578}
2579
2580static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2581{
4c476991 2582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2583 struct vif_params params;
84efbb84 2584 struct wireless_dev *wdev;
1c90f9d4 2585 struct sk_buff *msg;
55682965
JB		 2586 int err;
2587 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2588 u32 flags;
55682965 2589
78f22b6a
JB		 2590 /* to avoid failing a new interface creation due to pending removal */
2591 cfg80211_destroy_ifaces(rdev);
2592
2ec600d6
LCC		 2593 memset(&params, 0, sizeof(params));
2594
55682965
JB		 2595 if (!info->attrs[NL80211_ATTR_IFNAME])
2596 return -EINVAL;
2597
2598 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2599 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2600 if (type > NL80211_IFTYPE_MAX)
2601 return -EINVAL;
2602 }
2603
79c97e97 2604 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2605 !(rdev->wiphy.interface_modes & (1 << type)))
2606 return -EOPNOTSUPP;
55682965 2607
1c18f145
AS		 2608 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2609 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2610 ETH_ALEN);
2611 if (!is_valid_ether_addr(params.macaddr))
2612 return -EADDRNOTAVAIL;
2613 }
2614
9bc383de 2615 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2616 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2617 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2618 if (err)
4c476991 2619 return err;
9bc383de 2620 }
8b787643 2621
1c90f9d4
JB		 2622 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2623 if (!msg)
2624 return -ENOMEM;
2625
66f7ac50
MW		 2626 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2627 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2628 &flags);
e057d3c3 2629
18003297 2630 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2631 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2632 return -EOPNOTSUPP;
2633
e35e4d28
HG		 2634 wdev = rdev_add_virtual_intf(rdev,
2635 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2636 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2637 if (IS_ERR(wdev)) {
2638 nlmsg_free(msg);
84efbb84 2639 return PTR_ERR(wdev);
1c90f9d4 2640 }
2ec600d6 2641
78f22b6a
JB		 2642 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2643 wdev->owner_nlportid = info->snd_portid;
2644
98104fde
JB		 2645 switch (type) {
2646 case NL80211_IFTYPE_MESH_POINT:
2647 if (!info->attrs[NL80211_ATTR_MESH_ID])
2648 break;
29cbe68c
JB		 2649 wdev_lock(wdev);
2650 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2651 IEEE80211_MAX_MESH_ID_LEN);
2652 wdev->mesh_id_up_len =
2653 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2654 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2655 wdev->mesh_id_up_len);
2656 wdev_unlock(wdev);
98104fde
JB		 2657 break;
2658 case NL80211_IFTYPE_P2P_DEVICE:
2659 /*
2660 * P2P Device doesn't have a netdev, so doesn't go
2661 * through the netdev notifier and must be added here
2662 */
2663 mutex_init(&wdev->mtx);
2664 INIT_LIST_HEAD(&wdev->event_list);
2665 spin_lock_init(&wdev->event_lock);
2666 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2667 spin_lock_init(&wdev->mgmt_registrations_lock);
2668
98104fde
JB		 2669 wdev->identifier = ++rdev->wdev_id;
2670 list_add_rcu(&wdev->list, &rdev->wdev_list);
2671 rdev->devlist_generation++;
98104fde
JB		 2672 break;
2673 default:
2674 break;
29cbe68c
JB		 2675 }
2676
15e47304 2677 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2678 rdev, wdev) < 0) {
2679 nlmsg_free(msg);
2680 return -ENOBUFS;
2681 }
2682
2683 return genlmsg_reply(msg, info);
55682965
JB		 2684}
2685
2686static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2687{
4c476991 2688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2689 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2690
4c476991
JB		 2691 if (!rdev->ops->del_virtual_intf)
2692 return -EOPNOTSUPP;
55682965 2693
84efbb84
JB		 2694 /*
2695 * If we remove a wireless device without a netdev then clear
2696 * user_ptr[1] so that nl80211_post_doit won't dereference it
2697 * to check if it needs to do dev_put(). Otherwise it crashes
2698 * since the wdev has been freed, unlike with a netdev where
2699 * we need the dev_put() for the netdev to really be freed.
2700 */
2701 if (!wdev->netdev)
2702 info->user_ptr[1] = NULL;
2703
e35e4d28 2704 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2705}
2706
1d9d9213
SW		 2707static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2708{
2709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2710 struct net_device *dev = info->user_ptr[1];
2711 u16 noack_map;
2712
2713 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2714 return -EINVAL;
2715
2716 if (!rdev->ops->set_noack_map)
2717 return -EOPNOTSUPP;
2718
2719 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2720
e35e4d28 2721 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2722}
2723
41ade00f
JB		 2724struct get_key_cookie {
2725 struct sk_buff *msg;
2726 int error;
b9454e83 2727 int idx;
41ade00f
JB		 2728};
2729
2730static void get_key_callback(void *c, struct key_params *params)
2731{
b9454e83 2732 struct nlattr *key;
41ade00f
JB		 2733 struct get_key_cookie *cookie = c;
2734
9360ffd1
DM		 2735 if ((params->key &&
2736 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2737 params->key_len, params->key)) ||
2738 (params->seq &&
2739 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2740 params->seq_len, params->seq)) ||
2741 (params->cipher &&
2742 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2743 params->cipher)))
2744 goto nla_put_failure;
41ade00f 2745
b9454e83
JB		 2746 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2747 if (!key)
2748 goto nla_put_failure;
2749
9360ffd1
DM		 2750 if ((params->key &&
2751 nla_put(cookie->msg, NL80211_KEY_DATA,
2752 params->key_len, params->key)) ||
2753 (params->seq &&
2754 nla_put(cookie->msg, NL80211_KEY_SEQ,
2755 params->seq_len, params->seq)) ||
2756 (params->cipher &&
2757 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2758 params->cipher)))
2759 goto nla_put_failure;
b9454e83 2760
9360ffd1
DM		 2761 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2762 goto nla_put_failure;
b9454e83
JB		 2763
2764 nla_nest_end(cookie->msg, key);
2765
41ade00f
JB		 2766 return;
2767 nla_put_failure:
2768 cookie->error = 1;
2769}
2770
2771static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2772{
4c476991 2773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2774 int err;
4c476991 2775 struct net_device *dev = info->user_ptr[1];
41ade00f 2776 u8 key_idx = 0;
e31b8213
JB		 2777 const u8 *mac_addr = NULL;
2778 bool pairwise;
41ade00f
JB		 2779 struct get_key_cookie cookie = {
2780 .error = 0,
2781 };
2782 void *hdr;
2783 struct sk_buff *msg;
2784
2785 if (info->attrs[NL80211_ATTR_KEY_IDX])
2786 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2787
3cfcf6ac 2788 if (key_idx > 5)
41ade00f
JB		 2789 return -EINVAL;
2790
2791 if (info->attrs[NL80211_ATTR_MAC])
2792 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2793
e31b8213
JB		 2794 pairwise = !!mac_addr;
2795 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2796 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2797 if (kt >= NUM_NL80211_KEYTYPES)
2798 return -EINVAL;
2799 if (kt != NL80211_KEYTYPE_GROUP &&
2800 kt != NL80211_KEYTYPE_PAIRWISE)
2801 return -EINVAL;
2802 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2803 }
2804
4c476991
JB		 2805 if (!rdev->ops->get_key)
2806 return -EOPNOTSUPP;
41ade00f 2807
fd2120ca 2808 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2809 if (!msg)
2810 return -ENOMEM;
41ade00f 2811
15e47304 2812 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2813 NL80211_CMD_NEW_KEY);
cb35fba3 2814 if (!hdr)
9fe271af 2815 goto nla_put_failure;
41ade00f
JB		 2816
2817 cookie.msg = msg;
b9454e83 2818 cookie.idx = key_idx;
41ade00f 2819
9360ffd1
DM		 2820 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2821 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2822 goto nla_put_failure;
2823 if (mac_addr &&
2824 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2825 goto nla_put_failure;
41ade00f 2826
e31b8213
JB		 2827 if (pairwise && mac_addr &&
2828 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2829 return -ENOENT;
2830
e35e4d28
HG		 2831 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2832 get_key_callback);
41ade00f
JB		 2833
2834 if (err)
6c95e2a2 2835 goto free_msg;
41ade00f
JB		 2836
2837 if (cookie.error)
2838 goto nla_put_failure;
2839
2840 genlmsg_end(msg, hdr);
4c476991 2841 return genlmsg_reply(msg, info);
41ade00f
JB		 2842
2843 nla_put_failure:
2844 err = -ENOBUFS;
6c95e2a2 2845 free_msg:
41ade00f 2846 nlmsg_free(msg);
41ade00f
JB		 2847 return err;
2848}
2849
2850static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2851{
4c476991 2852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2853 struct key_parse key;
41ade00f 2854 int err;
4c476991 2855 struct net_device *dev = info->user_ptr[1];
41ade00f 2856
b9454e83
JB		 2857 err = nl80211_parse_key(info, &key);
2858 if (err)
2859 return err;
41ade00f 2860
b9454e83 2861 if (key.idx < 0)
41ade00f
JB		 2862 return -EINVAL;
2863
b9454e83
JB		 2864 /* only support setting default key */
2865 if (!key.def && !key.defmgmt)
41ade00f
JB		 2866 return -EINVAL;
2867
dbd2fd65 2868 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2869
dbd2fd65
JB		 2870 if (key.def) {
2871 if (!rdev->ops->set_default_key) {
2872 err = -EOPNOTSUPP;
2873 goto out;
2874 }
41ade00f 2875
dbd2fd65
JB		 2876 err = nl80211_key_allowed(dev->ieee80211_ptr);
2877 if (err)
2878 goto out;
2879
e35e4d28 2880 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2881 key.def_uni, key.def_multi);
2882
2883 if (err)
2884 goto out;
fffd0934 2885
3d23e349 2886#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2887 dev->ieee80211_ptr->wext.default_key = key.idx;
2888#endif
2889 } else {
2890 if (key.def_uni || !key.def_multi) {
2891 err = -EINVAL;
2892 goto out;
2893 }
2894
2895 if (!rdev->ops->set_default_mgmt_key) {
2896 err = -EOPNOTSUPP;
2897 goto out;
2898 }
2899
2900 err = nl80211_key_allowed(dev->ieee80211_ptr);
2901 if (err)
2902 goto out;
2903
e35e4d28 2904 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2905 if (err)
2906 goto out;
2907
2908#ifdef CONFIG_CFG80211_WEXT
2909 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2910#endif
dbd2fd65
JB		 2911 }
2912
2913 out:
fffd0934 2914 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2915
41ade00f
JB		 2916 return err;
2917}
2918
2919static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2920{
4c476991 2921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2922 int err;
4c476991 2923 struct net_device *dev = info->user_ptr[1];
b9454e83 2924 struct key_parse key;
e31b8213 2925 const u8 *mac_addr = NULL;
41ade00f 2926
b9454e83
JB		 2927 err = nl80211_parse_key(info, &key);
2928 if (err)
2929 return err;
41ade00f 2930
b9454e83 2931 if (!key.p.key)
41ade00f
JB		 2932 return -EINVAL;
2933
41ade00f
JB		 2934 if (info->attrs[NL80211_ATTR_MAC])
2935 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2936
e31b8213
JB		 2937 if (key.type == -1) {
2938 if (mac_addr)
2939 key.type = NL80211_KEYTYPE_PAIRWISE;
2940 else
2941 key.type = NL80211_KEYTYPE_GROUP;
2942 }
2943
2944 /* for now */
2945 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2946 key.type != NL80211_KEYTYPE_GROUP)
2947 return -EINVAL;
2948
4c476991
JB		 2949 if (!rdev->ops->add_key)
2950 return -EOPNOTSUPP;
25e47c18 2951
e31b8213
JB		 2952 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2953 key.type == NL80211_KEYTYPE_PAIRWISE,
2954 mac_addr))
4c476991 2955 return -EINVAL;
41ade00f 2956
fffd0934
JB		 2957 wdev_lock(dev->ieee80211_ptr);
2958 err = nl80211_key_allowed(dev->ieee80211_ptr);
2959 if (!err)
e35e4d28
HG		 2960 err = rdev_add_key(rdev, dev, key.idx,
2961 key.type == NL80211_KEYTYPE_PAIRWISE,
2962 mac_addr, &key.p);
fffd0934 2963 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2964
41ade00f
JB		 2965 return err;
2966}
2967
2968static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2969{
4c476991 2970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2971 int err;
4c476991 2972 struct net_device *dev = info->user_ptr[1];
41ade00f 2973 u8 *mac_addr = NULL;
b9454e83 2974 struct key_parse key;
41ade00f 2975
b9454e83
JB		 2976 err = nl80211_parse_key(info, &key);
2977 if (err)
2978 return err;
41ade00f
JB		 2979
2980 if (info->attrs[NL80211_ATTR_MAC])
2981 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2982
e31b8213
JB		 2983 if (key.type == -1) {
2984 if (mac_addr)
2985 key.type = NL80211_KEYTYPE_PAIRWISE;
2986 else
2987 key.type = NL80211_KEYTYPE_GROUP;
2988 }
2989
2990 /* for now */
2991 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2992 key.type != NL80211_KEYTYPE_GROUP)
2993 return -EINVAL;
2994
4c476991
JB		 2995 if (!rdev->ops->del_key)
2996 return -EOPNOTSUPP;
41ade00f 2997
fffd0934
JB		 2998 wdev_lock(dev->ieee80211_ptr);
2999 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3000
3001 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3002 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3003 err = -ENOENT;
3004
fffd0934 3005 if (!err)
e35e4d28
HG		 3006 err = rdev_del_key(rdev, dev, key.idx,
3007 key.type == NL80211_KEYTYPE_PAIRWISE,
3008 mac_addr);
41ade00f 3009
3d23e349 3010#ifdef CONFIG_CFG80211_WEXT
08645126 3011 if (!err) {
b9454e83 3012 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3013 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3014 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3015 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3016 }
3017#endif
fffd0934 3018 wdev_unlock(dev->ieee80211_ptr);
08645126 3019
41ade00f
JB		 3020 return err;
3021}
3022
77765eaf
VT		 3023/* This function returns an error or the number of nested attributes */
3024static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3025{
3026 struct nlattr *attr;
3027 int n_entries = 0, tmp;
3028
3029 nla_for_each_nested(attr, nl_attr, tmp) {
3030 if (nla_len(attr) != ETH_ALEN)
3031 return -EINVAL;
3032
3033 n_entries++;
3034 }
3035
3036 return n_entries;
3037}
3038
3039/*
3040 * This function parses ACL information and allocates memory for ACL data.
3041 * On successful return, the calling function is responsible to free the
3042 * ACL buffer returned by this function.
3043 */
3044static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3045 struct genl_info *info)
3046{
3047 enum nl80211_acl_policy acl_policy;
3048 struct nlattr *attr;
3049 struct cfg80211_acl_data *acl;
3050 int i = 0, n_entries, tmp;
3051
3052 if (!wiphy->max_acl_mac_addrs)
3053 return ERR_PTR(-EOPNOTSUPP);
3054
3055 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3056 return ERR_PTR(-EINVAL);
3057
3058 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3059 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3060 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3061 return ERR_PTR(-EINVAL);
3062
3063 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3064 return ERR_PTR(-EINVAL);
3065
3066 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3067 if (n_entries < 0)
3068 return ERR_PTR(n_entries);
3069
3070 if (n_entries > wiphy->max_acl_mac_addrs)
3071 return ERR_PTR(-ENOTSUPP);
3072
3073 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3074 GFP_KERNEL);
3075 if (!acl)
3076 return ERR_PTR(-ENOMEM);
3077
3078 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3079 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3080 i++;
3081 }
3082
3083 acl->n_acl_entries = n_entries;
3084 acl->acl_policy = acl_policy;
3085
3086 return acl;
3087}
3088
3089static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3090{
3091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3092 struct net_device *dev = info->user_ptr[1];
3093 struct cfg80211_acl_data *acl;
3094 int err;
3095
3096 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3097 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3098 return -EOPNOTSUPP;
3099
3100 if (!dev->ieee80211_ptr->beacon_interval)
3101 return -EINVAL;
3102
3103 acl = parse_acl_data(&rdev->wiphy, info);
3104 if (IS_ERR(acl))
3105 return PTR_ERR(acl);
3106
3107 err = rdev_set_mac_acl(rdev, dev, acl);
3108
3109 kfree(acl);
3110
3111 return err;
3112}
3113
a1193be8 3114static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3115 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3116{
8860020e 3117 bool haveinfo = false;
ed1b6cc7 3118
a1193be8
SW		 3119 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3120 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3121 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3122 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3123 return -EINVAL;
3124
8860020e 3125 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3126
a1193be8
SW		 3127 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3128 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3129 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3130 if (!bcn->head_len)
3131 return -EINVAL;
3132 haveinfo = true;
ed1b6cc7
JB		 3133 }
3134
a1193be8
SW		 3135 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3136 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3137 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3138 haveinfo = true;
ed1b6cc7
JB		 3139 }
3140
4c476991
JB		 3141 if (!haveinfo)
3142 return -EINVAL;
3b85875a 3143
a1193be8
SW		 3144 if (attrs[NL80211_ATTR_IE]) {
3145 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3146 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3147 }
3148
a1193be8 3149 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3150 bcn->proberesp_ies =
a1193be8 3151 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3152 bcn->proberesp_ies_len =
a1193be8 3153 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3154 }
3155
a1193be8 3156 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3157 bcn->assocresp_ies =
a1193be8 3158 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3159 bcn->assocresp_ies_len =
a1193be8 3160 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3161 }
3162
a1193be8
SW		 3163 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3164 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3165 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3166 }
3167
8860020e
JB		 3168 return 0;
3169}
3170
46c1dd0c
FF		 3171static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3172 struct cfg80211_ap_settings *params)
3173{
3174 struct wireless_dev *wdev;
3175 bool ret = false;
3176
89a54e48 3177 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3178 if (wdev->iftype != NL80211_IFTYPE_AP &&
3179 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3180 continue;
3181
683b6d3b 3182 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3183 continue;
3184
683b6d3b 3185 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3186 ret = true;
3187 break;
3188 }
3189
46c1dd0c
FF		 3190 return ret;
3191}
3192
e39e5b5e
JM		 3193static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3194 enum nl80211_auth_type auth_type,
3195 enum nl80211_commands cmd)
3196{
3197 if (auth_type > NL80211_AUTHTYPE_MAX)
3198 return false;
3199
3200 switch (cmd) {
3201 case NL80211_CMD_AUTHENTICATE:
3202 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3203 auth_type == NL80211_AUTHTYPE_SAE)
3204 return false;
3205 return true;
3206 case NL80211_CMD_CONNECT:
3207 case NL80211_CMD_START_AP:
3208 /* SAE not supported yet */
3209 if (auth_type == NL80211_AUTHTYPE_SAE)
3210 return false;
3211 return true;
3212 default:
3213 return false;
3214 }
3215}
3216
8860020e
JB		 3217static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3218{
3219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3220 struct net_device *dev = info->user_ptr[1];
3221 struct wireless_dev *wdev = dev->ieee80211_ptr;
3222 struct cfg80211_ap_settings params;
3223 int err;
3224
3225 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3227 return -EOPNOTSUPP;
3228
3229 if (!rdev->ops->start_ap)
3230 return -EOPNOTSUPP;
3231
3232 if (wdev->beacon_interval)
3233 return -EALREADY;
3234
3235 memset(&params, 0, sizeof(params));
3236
3237 /* these are required for START_AP */
3238 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3239 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3240 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3241 return -EINVAL;
3242
a1193be8 3243 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3244 if (err)
3245 return err;
3246
3247 params.beacon_interval =
3248 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3249 params.dtim_period =
3250 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3251
3252 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3253 if (err)
3254 return err;
3255
3256 /*
3257 * In theory, some of these attributes should be required here
3258 * but since they were not used when the command was originally
3259 * added, keep them optional for old user space programs to let
3260 * them continue to work with drivers that do not need the
3261 * additional information -- drivers must check!
3262 */
3263 if (info->attrs[NL80211_ATTR_SSID]) {
3264 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3265 params.ssid_len =
3266 nla_len(info->attrs[NL80211_ATTR_SSID]);
3267 if (params.ssid_len == 0 ||
3268 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3269 return -EINVAL;
3270 }
3271
3272 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3273 params.hidden_ssid = nla_get_u32(
3274 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3275 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3276 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3277 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3278 return -EINVAL;
3279 }
3280
3281 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3282
3283 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3284 params.auth_type = nla_get_u32(
3285 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3286 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3287 NL80211_CMD_START_AP))
8860020e
JB		 3288 return -EINVAL;
3289 } else
3290 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3291
3292 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3293 NL80211_MAX_NR_CIPHER_SUITES);
3294 if (err)
3295 return err;
3296
1b658f11
VT		 3297 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3298 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3299 return -EOPNOTSUPP;
3300 params.inactivity_timeout = nla_get_u16(
3301 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3302 }
3303
53cabad7
JB		 3304 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3305 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3306 return -EINVAL;
3307 params.p2p_ctwindow =
3308 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3309 if (params.p2p_ctwindow > 127)
3310 return -EINVAL;
3311 if (params.p2p_ctwindow != 0 &&
3312 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3313 return -EINVAL;
3314 }
3315
3316 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3317 u8 tmp;
3318
3319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3320 return -EINVAL;
3321 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3322 if (tmp > 1)
3323 return -EINVAL;
3324 params.p2p_opp_ps = tmp;
3325 if (params.p2p_opp_ps != 0 &&
3326 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3327 return -EINVAL;
3328 }
3329
aa430da4 3330 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3331 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3332 if (err)
3333 return err;
3334 } else if (wdev->preset_chandef.chan) {
3335 params.chandef = wdev->preset_chandef;
46c1dd0c 3336 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3337 return -EINVAL;
3338
174e0cd2
IP		 3339 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3340 wdev->iftype))
aa430da4
JB		 3341 return -EINVAL;
3342
77765eaf
VT		 3343 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3344 params.acl = parse_acl_data(&rdev->wiphy, info);
3345 if (IS_ERR(params.acl))
3346 return PTR_ERR(params.acl);
3347 }
3348
18998c38
EP		 3349 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3350 params.smps_mode =
3351 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3352 switch (params.smps_mode) {
3353 case NL80211_SMPS_OFF:
3354 break;
3355 case NL80211_SMPS_STATIC:
3356 if (!(rdev->wiphy.features &
3357 NL80211_FEATURE_STATIC_SMPS))
3358 return -EINVAL;
3359 break;
3360 case NL80211_SMPS_DYNAMIC:
3361 if (!(rdev->wiphy.features &
3362 NL80211_FEATURE_DYNAMIC_SMPS))
3363 return -EINVAL;
3364 break;
3365 default:
3366 return -EINVAL;
3367 }
3368 } else {
3369 params.smps_mode = NL80211_SMPS_OFF;
3370 }
3371
c56589ed 3372 wdev_lock(wdev);
e35e4d28 3373 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3374 if (!err) {
683b6d3b 3375 wdev->preset_chandef = params.chandef;
8860020e 3376 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3377 wdev->chandef = params.chandef;
06e191e2
AQ		 3378 wdev->ssid_len = params.ssid_len;
3379 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3380 }
c56589ed 3381 wdev_unlock(wdev);
77765eaf
VT		 3382
3383 kfree(params.acl);
3384
56d1893d 3385 return err;
ed1b6cc7
JB		 3386}
3387
8860020e
JB		 3388static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3389{
3390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3391 struct net_device *dev = info->user_ptr[1];
3392 struct wireless_dev *wdev = dev->ieee80211_ptr;
3393 struct cfg80211_beacon_data params;
3394 int err;
3395
3396 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3397 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3398 return -EOPNOTSUPP;
3399
3400 if (!rdev->ops->change_beacon)
3401 return -EOPNOTSUPP;
3402
3403 if (!wdev->beacon_interval)
3404 return -EINVAL;
3405
a1193be8 3406 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3407 if (err)
3408 return err;
3409
c56589ed
SW		 3410 wdev_lock(wdev);
3411 err = rdev_change_beacon(rdev, dev, &params);
3412 wdev_unlock(wdev);
3413
3414 return err;
8860020e
JB		 3415}
3416
3417static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3418{
4c476991
JB		 3419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3420 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3421
7c8d5e03 3422 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3423}
3424
5727ef1b
JB		 3425static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3426 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3427 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3428 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3429 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3430 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3431 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3432};
3433
eccb8e8f 3434static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3435 enum nl80211_iftype iftype,
eccb8e8f 3436 struct station_parameters *params)
5727ef1b
JB		 3437{
3438 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3439 struct nlattr *nla;
5727ef1b
JB		 3440 int flag;
3441
eccb8e8f
JB		 3442 /*
3443 * Try parsing the new attribute first so userspace
3444 * can specify both for older kernels.
3445 */
3446 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3447 if (nla) {
3448 struct nl80211_sta_flag_update *sta_flags;
3449
3450 sta_flags = nla_data(nla);
3451 params->sta_flags_mask = sta_flags->mask;
3452 params->sta_flags_set = sta_flags->set;
77ee7c89 3453 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3454 if ((params->sta_flags_mask |
3455 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3456 return -EINVAL;
3457 return 0;
3458 }
3459
3460 /* if present, parse the old attribute */
5727ef1b 3461
eccb8e8f 3462 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3463 if (!nla)
3464 return 0;
3465
3466 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3467 nla, sta_flags_policy))
3468 return -EINVAL;
3469
bdd3ae3d
JB		 3470 /*
3471 * Only allow certain flags for interface types so that
3472 * other attributes are silently ignored. Remember that
3473 * this is backward compatibility code with old userspace
3474 * and shouldn't be hit in other cases anyway.
3475 */
3476 switch (iftype) {
3477 case NL80211_IFTYPE_AP:
3478 case NL80211_IFTYPE_AP_VLAN:
3479 case NL80211_IFTYPE_P2P_GO:
3480 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3481 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3482 BIT(NL80211_STA_FLAG_WME) |
3483 BIT(NL80211_STA_FLAG_MFP);
3484 break;
3485 case NL80211_IFTYPE_P2P_CLIENT:
3486 case NL80211_IFTYPE_STATION:
3487 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3488 BIT(NL80211_STA_FLAG_TDLS_PEER);
3489 break;
3490 case NL80211_IFTYPE_MESH_POINT:
3491 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3492 BIT(NL80211_STA_FLAG_MFP) |
3493 BIT(NL80211_STA_FLAG_AUTHORIZED);
3494 default:
3495 return -EINVAL;
3496 }
5727ef1b 3497
3383b5a6
JB		 3498 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3499 if (flags[flag]) {
eccb8e8f 3500 params->sta_flags_set |= (1<<flag);
5727ef1b 3501
3383b5a6
JB		 3502 /* no longer support new API additions in old API */
3503 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3504 return -EINVAL;
3505 }
3506 }
3507
5727ef1b
JB		 3508 return 0;
3509}
3510
c8dcfd8a
FF		 3511static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3512 int attr)
3513{
3514 struct nlattr *rate;
8eb41c8d
VK		 3515 u32 bitrate;
3516 u16 bitrate_compat;
c8dcfd8a
FF		 3517
3518 rate = nla_nest_start(msg, attr);
3519 if (!rate)
db9c64cf 3520 return false;
c8dcfd8a
FF		 3521
3522 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3523 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3524 /* report 16-bit bitrate only if we can */
3525 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3526 if (bitrate > 0 &&
3527 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3528 return false;
3529 if (bitrate_compat > 0 &&
3530 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3531 return false;
3532
3533 if (info->flags & RATE_INFO_FLAGS_MCS) {
3534 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3535 return false;
3536 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3537 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3538 return false;
3539 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3540 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3541 return false;
3542 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3543 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3544 return false;
3545 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3546 return false;
3547 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3548 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3549 return false;
3550 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3551 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3552 return false;
3553 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3554 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3555 return false;
3556 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3557 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3558 return false;
3559 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3560 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3561 return false;
3562 }
c8dcfd8a
FF		 3563
3564 nla_nest_end(msg, rate);
3565 return true;
c8dcfd8a
FF		 3566}
3567
119363c7
FF		 3568static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3569 int id)
3570{
3571 void *attr;
3572 int i = 0;
3573
3574 if (!mask)
3575 return true;
3576
3577 attr = nla_nest_start(msg, id);
3578 if (!attr)
3579 return false;
3580
3581 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3582 if (!(mask & BIT(i)))
3583 continue;
3584
3585 if (nla_put_u8(msg, i, signal[i]))
3586 return false;
3587 }
3588
3589 nla_nest_end(msg, attr);
3590
3591 return true;
3592}
3593
15e47304 3594static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3595 int flags,
3596 struct cfg80211_registered_device *rdev,
3597 struct net_device *dev,
98b62183 3598 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3599{
3600 void *hdr;
f4263c98 3601 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3602
15e47304 3603 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3604 if (!hdr)
3605 return -1;
3606
9360ffd1
DM		 3607 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3608 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3609 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3610 goto nla_put_failure;
f5ea9120 3611
2ec600d6
LCC		 3612 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3613 if (!sinfoattr)
fd5b74dc 3614 goto nla_put_failure;
9360ffd1
DM		 3615 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3616 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3617 sinfo->connected_time))
3618 goto nla_put_failure;
3619 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3620 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3621 sinfo->inactive_time))
3622 goto nla_put_failure;
42745e03
VK		 3623 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3624 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3625 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3626 (u32)sinfo->rx_bytes))
9360ffd1 3627 goto nla_put_failure;
42745e03 3628 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3629 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3630 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3631 (u32)sinfo->tx_bytes))
3632 goto nla_put_failure;
3633 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3634 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3635 sinfo->rx_bytes))
3636 goto nla_put_failure;
3637 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3638 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3639 sinfo->tx_bytes))
3640 goto nla_put_failure;
3641 if ((sinfo->filled & STATION_INFO_LLID) &&
3642 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3643 goto nla_put_failure;
3644 if ((sinfo->filled & STATION_INFO_PLID) &&
3645 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3646 goto nla_put_failure;
3647 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3648 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3649 sinfo->plink_state))
3650 goto nla_put_failure;
66266b3a
JL		 3651 switch (rdev->wiphy.signal_type) {
3652 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3653 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3654 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3655 sinfo->signal))
3656 goto nla_put_failure;
3657 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3658 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3659 sinfo->signal_avg))
3660 goto nla_put_failure;
66266b3a
JL		 3661 break;
3662 default:
3663 break;
3664 }
119363c7
FF		 3665 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3666 if (!nl80211_put_signal(msg, sinfo->chains,
3667 sinfo->chain_signal,
3668 NL80211_STA_INFO_CHAIN_SIGNAL))
3669 goto nla_put_failure;
3670 }
3671 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3672 if (!nl80211_put_signal(msg, sinfo->chains,
3673 sinfo->chain_signal_avg,
3674 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3675 goto nla_put_failure;
3676 }
420e7fab 3677 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3678 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3679 NL80211_STA_INFO_TX_BITRATE))
3680 goto nla_put_failure;
3681 }
3682 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3683 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3684 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3685 goto nla_put_failure;
420e7fab 3686 }
9360ffd1
DM		 3687 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3688 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3689 sinfo->rx_packets))
3690 goto nla_put_failure;
3691 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3692 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3693 sinfo->tx_packets))
3694 goto nla_put_failure;
3695 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3696 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3697 sinfo->tx_retries))
3698 goto nla_put_failure;
3699 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3700 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3701 sinfo->tx_failed))
3702 goto nla_put_failure;
867d849f
AQ		 3703 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3704 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3705 sinfo->expected_throughput))
3706 goto nla_put_failure;
9360ffd1
DM		 3707 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3708 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3709 sinfo->beacon_loss_count))
3710 goto nla_put_failure;
3b1c5a53
MP		 3711 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3712 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3713 sinfo->local_pm))
3714 goto nla_put_failure;
3715 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3716 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3717 sinfo->peer_pm))
3718 goto nla_put_failure;
3719 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3720 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3721 sinfo->nonpeer_pm))
3722 goto nla_put_failure;
f4263c98
PS		 3723 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3724 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3725 if (!bss_param)
3726 goto nla_put_failure;
3727
9360ffd1
DM		 3728 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3729 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3730 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3731 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3732 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3733 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3734 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3735 sinfo->bss_param.dtim_period) ||
3736 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3737 sinfo->bss_param.beacon_interval))
3738 goto nla_put_failure;
f4263c98
PS		 3739
3740 nla_nest_end(msg, bss_param);
3741 }
9360ffd1
DM		 3742 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3743 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3744 sizeof(struct nl80211_sta_flag_update),
3745 &sinfo->sta_flags))
3746 goto nla_put_failure;
7eab0f64
JL		 3747 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3748 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3749 sinfo->t_offset))
3750 goto nla_put_failure;
2ec600d6 3751 nla_nest_end(msg, sinfoattr);
fd5b74dc 3752
9360ffd1
DM		 3753 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3754 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3755 sinfo->assoc_req_ies))
3756 goto nla_put_failure;
50d3dfb7 3757
fd5b74dc
JB		 3758 return genlmsg_end(msg, hdr);
3759
3760 nla_put_failure:
bc3ed28c
TG		 3761 genlmsg_cancel(msg, hdr);
3762 return -EMSGSIZE;
fd5b74dc
JB		 3763}
3764
2ec600d6 3765static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3766 struct netlink_callback *cb)
2ec600d6 3767{
2ec600d6 3768 struct station_info sinfo;
1b8ec87a 3769 struct cfg80211_registered_device *rdev;
97990a06 3770 struct wireless_dev *wdev;
2ec600d6 3771 u8 mac_addr[ETH_ALEN];
97990a06 3772 int sta_idx = cb->args[2];
2ec600d6 3773 int err;
2ec600d6 3774
1b8ec87a 3775 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3776 if (err)
3777 return err;
bba95fef 3778
97990a06
JB		 3779 if (!wdev->netdev) {
3780 err = -EINVAL;
3781 goto out_err;
3782 }
3783
1b8ec87a 3784 if (!rdev->ops->dump_station) {
eec60b03 3785 err = -EOPNOTSUPP;
bba95fef
JB		 3786 goto out_err;
3787 }
3788
bba95fef 3789 while (1) {
f612cedf 3790 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3791 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3792 mac_addr, &sinfo);
bba95fef
JB		 3793 if (err == -ENOENT)
3794 break;
3795 if (err)
3b85875a 3796 goto out_err;
bba95fef
JB		 3797
3798 if (nl80211_send_station(skb,
15e47304 3799 NETLINK_CB(cb->skb).portid,
bba95fef 3800 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3801 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3802 &sinfo) < 0)
3803 goto out;
3804
3805 sta_idx++;
3806 }
3807
3808
3809 out:
97990a06 3810 cb->args[2] = sta_idx;
bba95fef 3811 err = skb->len;
bba95fef 3812 out_err:
1b8ec87a 3813 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3814
3815 return err;
2ec600d6 3816}
fd5b74dc 3817
5727ef1b
JB		 3818static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3819{
4c476991
JB		 3820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3821 struct net_device *dev = info->user_ptr[1];
2ec600d6 3822 struct station_info sinfo;
fd5b74dc
JB		 3823 struct sk_buff *msg;
3824 u8 *mac_addr = NULL;
4c476991 3825 int err;
fd5b74dc 3826
2ec600d6 3827 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3828
3829 if (!info->attrs[NL80211_ATTR_MAC])
3830 return -EINVAL;
3831
3832 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3833
4c476991
JB		 3834 if (!rdev->ops->get_station)
3835 return -EOPNOTSUPP;
3b85875a 3836
e35e4d28 3837 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3838 if (err)
4c476991 3839 return err;
2ec600d6 3840
fd2120ca 3841 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3842 if (!msg)
4c476991 3843 return -ENOMEM;
fd5b74dc 3844
15e47304 3845 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3846 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3847 nlmsg_free(msg);
3848 return -ENOBUFS;
3849 }
3b85875a 3850
4c476991 3851 return genlmsg_reply(msg, info);
5727ef1b
JB		 3852}
3853
77ee7c89
JB		 3854int cfg80211_check_station_change(struct wiphy *wiphy,
3855 struct station_parameters *params,
3856 enum cfg80211_station_type statype)
3857{
3858 if (params->listen_interval != -1)
3859 return -EINVAL;
c72e1140
AN		 3860 if (params->aid &&
3861 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3862 return -EINVAL;
3863
3864 /* When you run into this, adjust the code below for the new flag */
3865 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3866
3867 switch (statype) {
eef941e6
TP		 3868 case CFG80211_STA_MESH_PEER_KERNEL:
3869 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3870 /*
3871 * No ignoring the TDLS flag here -- the userspace mesh
3872 * code doesn't have the bug of including TDLS in the
3873 * mask everywhere.
3874 */
3875 if (params->sta_flags_mask &
3876 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3877 BIT(NL80211_STA_FLAG_MFP) |
3878 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3879 return -EINVAL;
3880 break;
3881 case CFG80211_STA_TDLS_PEER_SETUP:
3882 case CFG80211_STA_TDLS_PEER_ACTIVE:
3883 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3884 return -EINVAL;
3885 /* ignore since it can't change */
3886 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3887 break;
3888 default:
3889 /* disallow mesh-specific things */
3890 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3891 return -EINVAL;
3892 if (params->local_pm)
3893 return -EINVAL;
3894 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3895 return -EINVAL;
3896 }
3897
3898 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3899 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3900 /* TDLS can't be set, ... */
3901 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3902 return -EINVAL;
3903 /*
3904 * ... but don't bother the driver with it. This works around
3905 * a hostapd/wpa_supplicant issue -- it always includes the
3906 * TLDS_PEER flag in the mask even for AP mode.
3907 */
3908 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3909 }
3910
3911 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3912 /* reject other things that can't change */
3913 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3914 return -EINVAL;
3915 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3916 return -EINVAL;
3917 if (params->supported_rates)
3918 return -EINVAL;
3919 if (params->ext_capab || params->ht_capa || params->vht_capa)
3920 return -EINVAL;
3921 }
3922
3923 if (statype != CFG80211_STA_AP_CLIENT) {
3924 if (params->vlan)
3925 return -EINVAL;
3926 }
3927
3928 switch (statype) {
3929 case CFG80211_STA_AP_MLME_CLIENT:
3930 /* Use this only for authorizing/unauthorizing a station */
3931 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3932 return -EOPNOTSUPP;
3933 break;
3934 case CFG80211_STA_AP_CLIENT:
3935 /* accept only the listed bits */
3936 if (params->sta_flags_mask &
3937 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3938 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3939 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3940 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3941 BIT(NL80211_STA_FLAG_WME) |
3942 BIT(NL80211_STA_FLAG_MFP)))
3943 return -EINVAL;
3944
3945 /* but authenticated/associated only if driver handles it */
3946 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3947 params->sta_flags_mask &
3948 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3949 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3950 return -EINVAL;
3951 break;
3952 case CFG80211_STA_IBSS:
3953 case CFG80211_STA_AP_STA:
3954 /* reject any changes other than AUTHORIZED */
3955 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3956 return -EINVAL;
3957 break;
3958 case CFG80211_STA_TDLS_PEER_SETUP:
3959 /* reject any changes other than AUTHORIZED or WME */
3960 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3961 BIT(NL80211_STA_FLAG_WME)))
3962 return -EINVAL;
3963 /* force (at least) rates when authorizing */
3964 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3965 !params->supported_rates)
3966 return -EINVAL;
3967 break;
3968 case CFG80211_STA_TDLS_PEER_ACTIVE:
3969 /* reject any changes */
3970 return -EINVAL;
eef941e6 3971 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3972 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3973 return -EINVAL;
3974 break;
eef941e6 3975 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3976 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3977 return -EINVAL;
3978 break;
3979 }
3980
3981 return 0;
3982}
3983EXPORT_SYMBOL(cfg80211_check_station_change);
3984
5727ef1b 3985/*
c258d2de 3986 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3987 */
80b99899
JB		 3988static struct net_device *get_vlan(struct genl_info *info,
3989 struct cfg80211_registered_device *rdev)
5727ef1b 3990{
463d0183 3991 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3992 struct net_device *v;
3993 int ret;
3994
3995 if (!vlanattr)
3996 return NULL;
3997
3998 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3999 if (!v)
4000 return ERR_PTR(-ENODEV);
4001
4002 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4003 ret = -EINVAL;
4004 goto error;
5727ef1b 4005 }
80b99899 4006
77ee7c89
JB		 4007 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4008 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4009 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4010 ret = -EINVAL;
4011 goto error;
4012 }
4013
80b99899
JB		 4014 if (!netif_running(v)) {
4015 ret = -ENETDOWN;
4016 goto error;
4017 }
4018
4019 return v;
4020 error:
4021 dev_put(v);
4022 return ERR_PTR(ret);
5727ef1b
JB		 4023}
4024
94e860f1
JB		 4025static const struct nla_policy
4026nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4027 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4028 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4029};
4030
ff276691
JB		 4031static int nl80211_parse_sta_wme(struct genl_info *info,
4032 struct station_parameters *params)
df881293 4033{
df881293
JM		 4034 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4035 struct nlattr *nla;
4036 int err;
4037
df881293
JM		 4038 /* parse WME attributes if present */
4039 if (!info->attrs[NL80211_ATTR_STA_WME])
4040 return 0;
4041
4042 nla = info->attrs[NL80211_ATTR_STA_WME];
4043 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4044 nl80211_sta_wme_policy);
4045 if (err)
4046 return err;
4047
4048 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4049 params->uapsd_queues = nla_get_u8(
4050 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4051 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4052 return -EINVAL;
4053
4054 if (tb[NL80211_STA_WME_MAX_SP])
4055 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4056
4057 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4058 return -EINVAL;
4059
4060 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4061
4062 return 0;
4063}
4064
c01fc9ad
SD		 4065static int nl80211_parse_sta_channel_info(struct genl_info *info,
4066 struct station_parameters *params)
4067{
4068 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4069 params->supported_channels =
4070 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4071 params->supported_channels_len =
4072 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4073 /*
4074 * Need to include at least one (first channel, number of
4075 * channels) tuple for each subband, and must have proper
4076 * tuples for the rest of the data as well.
4077 */
4078 if (params->supported_channels_len < 2)
4079 return -EINVAL;
4080 if (params->supported_channels_len % 2)
4081 return -EINVAL;
4082 }
4083
4084 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4085 params->supported_oper_classes =
4086 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4087 params->supported_oper_classes_len =
4088 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4089 /*
4090 * The value of the Length field of the Supported Operating
4091 * Classes element is between 2 and 253.
4092 */
4093 if (params->supported_oper_classes_len < 2 ||
4094 params->supported_oper_classes_len > 253)
4095 return -EINVAL;
4096 }
4097 return 0;
4098}
4099
ff276691
JB		 4100static int nl80211_set_station_tdls(struct genl_info *info,
4101 struct station_parameters *params)
4102{
c01fc9ad 4103 int err;
ff276691 4104 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4105 if (info->attrs[NL80211_ATTR_PEER_AID])
4106 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4107 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4108 params->ht_capa =
4109 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4110 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4111 params->vht_capa =
4112 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4113
c01fc9ad
SD		 4114 err = nl80211_parse_sta_channel_info(info, params);
4115 if (err)
4116 return err;
4117
ff276691
JB		 4118 return nl80211_parse_sta_wme(info, params);
4119}
4120
5727ef1b
JB		 4121static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4122{
4c476991 4123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4124 struct net_device *dev = info->user_ptr[1];
5727ef1b 4125 struct station_parameters params;
77ee7c89
JB		 4126 u8 *mac_addr;
4127 int err;
5727ef1b
JB		 4128
4129 memset(&params, 0, sizeof(params));
4130
4131 params.listen_interval = -1;
4132
77ee7c89
JB		 4133 if (!rdev->ops->change_station)
4134 return -EOPNOTSUPP;
4135
5727ef1b
JB		 4136 if (info->attrs[NL80211_ATTR_STA_AID])
4137 return -EINVAL;
4138
4139 if (!info->attrs[NL80211_ATTR_MAC])
4140 return -EINVAL;
4141
4142 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4143
4144 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4145 params.supported_rates =
4146 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4147 params.supported_rates_len =
4148 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4149 }
4150
9d62a986
JM		 4151 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4152 params.capability =
4153 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4154 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4155 }
4156
4157 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4158 params.ext_capab =
4159 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4160 params.ext_capab_len =
4161 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4162 }
4163
df881293 4164 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4165 return -EINVAL;
36aedc90 4166
bdd3ae3d 4167 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4168 return -EINVAL;
4169
f8bacc21 4170 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4171 params.plink_action =
f8bacc21
JB		 4172 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4173 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4174 return -EINVAL;
4175 }
2ec600d6 4176
f8bacc21 4177 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4178 params.plink_state =
f8bacc21
JB		 4179 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4180 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4181 return -EINVAL;
4182 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4183 }
9c3990aa 4184
3b1c5a53
MP		 4185 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4186 enum nl80211_mesh_power_mode pm = nla_get_u32(
4187 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4188
4189 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4190 pm > NL80211_MESH_POWER_MAX)
4191 return -EINVAL;
4192
4193 params.local_pm = pm;
4194 }
4195
77ee7c89
JB		 4196 /* Include parameters for TDLS peer (will check later) */
4197 err = nl80211_set_station_tdls(info, &params);
4198 if (err)
4199 return err;
4200
4201 params.vlan = get_vlan(info, rdev);
4202 if (IS_ERR(params.vlan))
4203 return PTR_ERR(params.vlan);
4204
a97f4424
JB		 4205 switch (dev->ieee80211_ptr->iftype) {
4206 case NL80211_IFTYPE_AP:
4207 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4208 case NL80211_IFTYPE_P2P_GO:
074ac8df 4209 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4210 case NL80211_IFTYPE_STATION:
267335d6 4211 case NL80211_IFTYPE_ADHOC:
a97f4424 4212 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4213 break;
4214 default:
77ee7c89
JB		 4215 err = -EOPNOTSUPP;
4216 goto out_put_vlan;
034d655e
JB		 4217 }
4218
77ee7c89 4219 /* driver will call cfg80211_check_station_change() */
e35e4d28 4220 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4221
77ee7c89 4222 out_put_vlan:
5727ef1b
JB		 4223 if (params.vlan)
4224 dev_put(params.vlan);
3b85875a 4225
5727ef1b
JB		 4226 return err;
4227}
4228
4229static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4230{
4c476991 4231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4232 int err;
4c476991 4233 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4234 struct station_parameters params;
4235 u8 *mac_addr = NULL;
4236
4237 memset(&params, 0, sizeof(params));
4238
984c311b
JB		 4239 if (!rdev->ops->add_station)
4240 return -EOPNOTSUPP;
4241
5727ef1b
JB		 4242 if (!info->attrs[NL80211_ATTR_MAC])
4243 return -EINVAL;
4244
5727ef1b
JB		 4245 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4246 return -EINVAL;
4247
4248 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4249 return -EINVAL;
4250
5e4b6f56
JM		 4251 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4252 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4253 return -EINVAL;
4254
5727ef1b
JB		 4255 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4256 params.supported_rates =
4257 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4258 params.supported_rates_len =
4259 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4260 params.listen_interval =
4261 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4262
3d124ea2 4263 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4264 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4265 else
4266 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4267 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4268 return -EINVAL;
51b50fbe 4269
9d62a986
JM		 4270 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4271 params.capability =
4272 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4273 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4274 }
4275
4276 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4277 params.ext_capab =
4278 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4279 params.ext_capab_len =
4280 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4281 }
4282
36aedc90
JM		 4283 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4284 params.ht_capa =
4285 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4286
f461be3e
MP		 4287 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4288 params.vht_capa =
4289 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4290
60f4a7b1
MK		 4291 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4292 params.opmode_notif_used = true;
4293 params.opmode_notif =
4294 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4295 }
4296
f8bacc21 4297 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4298 params.plink_action =
f8bacc21
JB		 4299 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4300 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4301 return -EINVAL;
4302 }
96b78dff 4303
c01fc9ad
SD		 4304 err = nl80211_parse_sta_channel_info(info, &params);
4305 if (err)
4306 return err;
4307
ff276691
JB		 4308 err = nl80211_parse_sta_wme(info, &params);
4309 if (err)
4310 return err;
bdd90d5e 4311
bdd3ae3d 4312 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4313 return -EINVAL;
4314
77ee7c89
JB		 4315 /* When you run into this, adjust the code below for the new flag */
4316 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4317
bdd90d5e
JB		 4318 switch (dev->ieee80211_ptr->iftype) {
4319 case NL80211_IFTYPE_AP:
4320 case NL80211_IFTYPE_AP_VLAN:
4321 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4322 /* ignore WME attributes if iface/sta is not capable */
4323 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4324 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4325 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4326
bdd90d5e 4327 /* TDLS peers cannot be added */
3d124ea2
JM		 4328 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4329 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4330 return -EINVAL;
bdd90d5e
JB		 4331 /* but don't bother the driver with it */
4332 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4333
d582cffb
JB		 4334 /* allow authenticated/associated only if driver handles it */
4335 if (!(rdev->wiphy.features &
4336 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4337 params.sta_flags_mask &
4338 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4339 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4340 return -EINVAL;
4341
bdd90d5e
JB		 4342 /* must be last in here for error handling */
4343 params.vlan = get_vlan(info, rdev);
4344 if (IS_ERR(params.vlan))
4345 return PTR_ERR(params.vlan);
4346 break;
4347 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4348 /* ignore uAPSD data */
4349 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4350
d582cffb
JB		 4351 /* associated is disallowed */
4352 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4353 return -EINVAL;
bdd90d5e 4354 /* TDLS peers cannot be added */
3d124ea2
JM		 4355 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4356 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4357 return -EINVAL;
4358 break;
4359 case NL80211_IFTYPE_STATION:
93d08f0b 4360 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4361 /* ignore uAPSD data */
4362 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4363
77ee7c89
JB		 4364 /* these are disallowed */
4365 if (params.sta_flags_mask &
4366 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4367 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4368 return -EINVAL;
bdd90d5e
JB		 4369 /* Only TDLS peers can be added */
4370 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4371 return -EINVAL;
4372 /* Can only add if TDLS ... */
4373 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4374 return -EOPNOTSUPP;
4375 /* ... with external setup is supported */
4376 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4377 return -EOPNOTSUPP;
77ee7c89
JB		 4378 /*
4379 * Older wpa_supplicant versions always mark the TDLS peer
4380 * as authorized, but it shouldn't yet be.
4381 */
4382 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4383 break;
4384 default:
4385 return -EOPNOTSUPP;
c75786c9
EP		 4386 }
4387
bdd90d5e 4388 /* be aware of params.vlan when changing code here */
5727ef1b 4389
e35e4d28 4390 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4391
5727ef1b
JB		 4392 if (params.vlan)
4393 dev_put(params.vlan);
5727ef1b
JB		 4394 return err;
4395}
4396
4397static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4398{
4c476991
JB		 4399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4400 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4401 struct station_del_parameters params;
4402
4403 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4404
4405 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4406 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4407
e80cf853 4408 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4409 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4410 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4412 return -EINVAL;
5727ef1b 4413
4c476991
JB		 4414 if (!rdev->ops->del_station)
4415 return -EOPNOTSUPP;
3b85875a 4416
89c771e5 4417 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4418}
4419
15e47304 4420static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4421 int flags, struct net_device *dev,
4422 u8 *dst, u8 *next_hop,
4423 struct mpath_info *pinfo)
4424{
4425 void *hdr;
4426 struct nlattr *pinfoattr;
4427
15e47304 4428 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4429 if (!hdr)
4430 return -1;
4431
9360ffd1
DM		 4432 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4433 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4434 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4435 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4436 goto nla_put_failure;
f5ea9120 4437
2ec600d6
LCC		 4438 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4439 if (!pinfoattr)
4440 goto nla_put_failure;
9360ffd1
DM		 4441 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4442 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4443 pinfo->frame_qlen))
4444 goto nla_put_failure;
4445 if (((pinfo->filled & MPATH_INFO_SN) &&
4446 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4447 ((pinfo->filled & MPATH_INFO_METRIC) &&
4448 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4449 pinfo->metric)) ||
4450 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4451 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4452 pinfo->exptime)) ||
4453 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4454 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4455 pinfo->flags)) ||
4456 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4457 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4458 pinfo->discovery_timeout)) ||
4459 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4460 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4461 pinfo->discovery_retries)))
4462 goto nla_put_failure;
2ec600d6
LCC		 4463
4464 nla_nest_end(msg, pinfoattr);
4465
4466 return genlmsg_end(msg, hdr);
4467
4468 nla_put_failure:
bc3ed28c
TG		 4469 genlmsg_cancel(msg, hdr);
4470 return -EMSGSIZE;
2ec600d6
LCC		 4471}
4472
4473static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4474 struct netlink_callback *cb)
2ec600d6 4475{
2ec600d6 4476 struct mpath_info pinfo;
1b8ec87a 4477 struct cfg80211_registered_device *rdev;
97990a06 4478 struct wireless_dev *wdev;
2ec600d6
LCC		 4479 u8 dst[ETH_ALEN];
4480 u8 next_hop[ETH_ALEN];
97990a06 4481 int path_idx = cb->args[2];
2ec600d6 4482 int err;
2ec600d6 4483
1b8ec87a 4484 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4485 if (err)
4486 return err;
bba95fef 4487
1b8ec87a 4488 if (!rdev->ops->dump_mpath) {
eec60b03 4489 err = -EOPNOTSUPP;
bba95fef
JB		 4490 goto out_err;
4491 }
4492
97990a06 4493 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4494 err = -EOPNOTSUPP;
0448b5fc 4495 goto out_err;
eec60b03
JM		 4496 }
4497
bba95fef 4498 while (1) {
1b8ec87a 4499 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4500 next_hop, &pinfo);
bba95fef 4501 if (err == -ENOENT)
2ec600d6 4502 break;
bba95fef 4503 if (err)
3b85875a 4504 goto out_err;
2ec600d6 4505
15e47304 4506 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4507 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4508 wdev->netdev, dst, next_hop,
bba95fef
JB		 4509 &pinfo) < 0)
4510 goto out;
2ec600d6 4511
bba95fef 4512 path_idx++;
2ec600d6 4513 }
2ec600d6 4514
2ec600d6 4515
bba95fef 4516 out:
97990a06 4517 cb->args[2] = path_idx;
bba95fef 4518 err = skb->len;
bba95fef 4519 out_err:
1b8ec87a 4520 nl80211_finish_wdev_dump(rdev);
bba95fef 4521 return err;
2ec600d6
LCC		 4522}
4523
4524static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4525{
4c476991 4526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4527 int err;
4c476991 4528 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4529 struct mpath_info pinfo;
4530 struct sk_buff *msg;
4531 u8 *dst = NULL;
4532 u8 next_hop[ETH_ALEN];
4533
4534 memset(&pinfo, 0, sizeof(pinfo));
4535
4536 if (!info->attrs[NL80211_ATTR_MAC])
4537 return -EINVAL;
4538
4539 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4540
4c476991
JB		 4541 if (!rdev->ops->get_mpath)
4542 return -EOPNOTSUPP;
2ec600d6 4543
4c476991
JB		 4544 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4545 return -EOPNOTSUPP;
eec60b03 4546
e35e4d28 4547 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4548 if (err)
4c476991 4549 return err;
2ec600d6 4550
fd2120ca 4551 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4552 if (!msg)
4c476991 4553 return -ENOMEM;
2ec600d6 4554
15e47304 4555 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4556 dev, dst, next_hop, &pinfo) < 0) {
4557 nlmsg_free(msg);
4558 return -ENOBUFS;
4559 }
3b85875a 4560
4c476991 4561 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4562}
4563
4564static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4565{
4c476991
JB		 4566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4567 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4568 u8 *dst = NULL;
4569 u8 *next_hop = NULL;
4570
4571 if (!info->attrs[NL80211_ATTR_MAC])
4572 return -EINVAL;
4573
4574 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4575 return -EINVAL;
4576
4577 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4578 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4579
4c476991
JB		 4580 if (!rdev->ops->change_mpath)
4581 return -EOPNOTSUPP;
35a8efe1 4582
4c476991
JB		 4583 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4584 return -EOPNOTSUPP;
2ec600d6 4585
e35e4d28 4586 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4587}
4c476991 4588
2ec600d6
LCC		 4589static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4590{
4c476991
JB		 4591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4592 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4593 u8 *dst = NULL;
4594 u8 *next_hop = NULL;
4595
4596 if (!info->attrs[NL80211_ATTR_MAC])
4597 return -EINVAL;
4598
4599 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4600 return -EINVAL;
4601
4602 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4603 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4604
4c476991
JB		 4605 if (!rdev->ops->add_mpath)
4606 return -EOPNOTSUPP;
35a8efe1 4607
4c476991
JB		 4608 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4609 return -EOPNOTSUPP;
2ec600d6 4610
e35e4d28 4611 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4612}
4613
4614static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4615{
4c476991
JB		 4616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4617 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4618 u8 *dst = NULL;
4619
4620 if (info->attrs[NL80211_ATTR_MAC])
4621 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4622
4c476991
JB		 4623 if (!rdev->ops->del_mpath)
4624 return -EOPNOTSUPP;
3b85875a 4625
e35e4d28 4626 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4627}
4628
66be7d2b
HR		 4629static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4630{
4631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4632 int err;
4633 struct net_device *dev = info->user_ptr[1];
4634 struct mpath_info pinfo;
4635 struct sk_buff *msg;
4636 u8 *dst = NULL;
4637 u8 mpp[ETH_ALEN];
4638
4639 memset(&pinfo, 0, sizeof(pinfo));
4640
4641 if (!info->attrs[NL80211_ATTR_MAC])
4642 return -EINVAL;
4643
4644 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4645
4646 if (!rdev->ops->get_mpp)
4647 return -EOPNOTSUPP;
4648
4649 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4650 return -EOPNOTSUPP;
4651
4652 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4653 if (err)
4654 return err;
4655
4656 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4657 if (!msg)
4658 return -ENOMEM;
4659
4660 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4661 dev, dst, mpp, &pinfo) < 0) {
4662 nlmsg_free(msg);
4663 return -ENOBUFS;
4664 }
4665
4666 return genlmsg_reply(msg, info);
4667}
4668
4669static int nl80211_dump_mpp(struct sk_buff *skb,
4670 struct netlink_callback *cb)
4671{
4672 struct mpath_info pinfo;
4673 struct cfg80211_registered_device *rdev;
4674 struct wireless_dev *wdev;
4675 u8 dst[ETH_ALEN];
4676 u8 mpp[ETH_ALEN];
4677 int path_idx = cb->args[2];
4678 int err;
4679
4680 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4681 if (err)
4682 return err;
4683
4684 if (!rdev->ops->dump_mpp) {
4685 err = -EOPNOTSUPP;
4686 goto out_err;
4687 }
4688
4689 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4690 err = -EOPNOTSUPP;
4691 goto out_err;
4692 }
4693
4694 while (1) {
4695 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4696 mpp, &pinfo);
4697 if (err == -ENOENT)
4698 break;
4699 if (err)
4700 goto out_err;
4701
4702 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4703 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4704 wdev->netdev, dst, mpp,
4705 &pinfo) < 0)
4706 goto out;
4707
4708 path_idx++;
4709 }
4710
4711 out:
4712 cb->args[2] = path_idx;
4713 err = skb->len;
4714 out_err:
4715 nl80211_finish_wdev_dump(rdev);
4716 return err;
4717}
4718
9f1ba906
JM		 4719static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4720{
4c476991
JB		 4721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4722 struct net_device *dev = info->user_ptr[1];
c56589ed 4723 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4724 struct bss_parameters params;
c56589ed 4725 int err;
9f1ba906
JM		 4726
4727 memset(&params, 0, sizeof(params));
4728 /* default to not changing parameters */
4729 params.use_cts_prot = -1;
4730 params.use_short_preamble = -1;
4731 params.use_short_slot_time = -1;
fd8aaaf3 4732 params.ap_isolate = -1;
50b12f59 4733 params.ht_opmode = -1;
53cabad7
JB		 4734 params.p2p_ctwindow = -1;
4735 params.p2p_opp_ps = -1;
9f1ba906
JM		 4736
4737 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4738 params.use_cts_prot =
4739 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4740 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4741 params.use_short_preamble =
4742 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4743 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4744 params.use_short_slot_time =
4745 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4746 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4747 params.basic_rates =
4748 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4749 params.basic_rates_len =
4750 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4751 }
fd8aaaf3
FF		 4752 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4753 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4754 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4755 params.ht_opmode =
4756 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4757
53cabad7
JB		 4758 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4759 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4760 return -EINVAL;
4761 params.p2p_ctwindow =
4762 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4763 if (params.p2p_ctwindow < 0)
4764 return -EINVAL;
4765 if (params.p2p_ctwindow != 0 &&
4766 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4767 return -EINVAL;
4768 }
4769
4770 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4771 u8 tmp;
4772
4773 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4774 return -EINVAL;
4775 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4776 if (tmp > 1)
4777 return -EINVAL;
4778 params.p2p_opp_ps = tmp;
4779 if (params.p2p_opp_ps &&
4780 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4781 return -EINVAL;
4782 }
4783
4c476991
JB		 4784 if (!rdev->ops->change_bss)
4785 return -EOPNOTSUPP;
9f1ba906 4786
074ac8df 4787 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4788 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4789 return -EOPNOTSUPP;
3b85875a 4790
c56589ed
SW		 4791 wdev_lock(wdev);
4792 err = rdev_change_bss(rdev, dev, &params);
4793 wdev_unlock(wdev);
4794
4795 return err;
9f1ba906
JM		 4796}
4797
b54452b0 4798static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4799 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4800 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4801 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4802 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4803 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4804 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4805 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4806};
4807
4808static int parse_reg_rule(struct nlattr *tb[],
4809 struct ieee80211_reg_rule *reg_rule)
4810{
4811 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4812 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4813
4814 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4815 return -EINVAL;
4816 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4817 return -EINVAL;
4818 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4819 return -EINVAL;
b0dfd2ea
JD		 4820 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4821 return -EINVAL;
b2e1b302
LR		 4822 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4823 return -EINVAL;
4824
4825 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4826
4827 freq_range->start_freq_khz =
4828 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4829 freq_range->end_freq_khz =
4830 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4831 freq_range->max_bandwidth_khz =
4832 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4833
4834 power_rule->max_eirp =
4835 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4836
4837 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4838 power_rule->max_antenna_gain =
4839 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4840
089027e5
JD		 4841 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4842 reg_rule->dfs_cac_ms =
4843 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4844
b2e1b302
LR		 4845 return 0;
4846}
4847
4848static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4849{
b2e1b302 4850 char *data = NULL;
57b5ce07 4851 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4852
80778f18
LR		 4853 /*
4854 * You should only get this when cfg80211 hasn't yet initialized
4855 * completely when built-in to the kernel right between the time
4856 * window between nl80211_init() and regulatory_init(), if that is
4857 * even possible.
4858 */
458f4f9e 4859 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4860 return -EINPROGRESS;
80778f18 4861
57b5ce07
LR		 4862 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4863 user_reg_hint_type =
4864 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4865 else
4866 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4867
4868 switch (user_reg_hint_type) {
4869 case NL80211_USER_REG_HINT_USER:
4870 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4871 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4872 return -EINVAL;
4873
4874 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4875 return regulatory_hint_user(data, user_reg_hint_type);
4876 case NL80211_USER_REG_HINT_INDOOR:
4877 return regulatory_hint_indoor_user();
57b5ce07
LR		 4878 default:
4879 return -EINVAL;
4880 }
b2e1b302
LR		 4881}
4882
24bdd9f4 4883static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4884 struct genl_info *info)
93da9cc1 4885{
4c476991 4886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4887 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4888 struct wireless_dev *wdev = dev->ieee80211_ptr;
4889 struct mesh_config cur_params;
4890 int err = 0;
93da9cc1 4891 void *hdr;
4892 struct nlattr *pinfoattr;
4893 struct sk_buff *msg;
4894
29cbe68c
JB		 4895 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4896 return -EOPNOTSUPP;
4897
24bdd9f4 4898 if (!rdev->ops->get_mesh_config)
4c476991 4899 return -EOPNOTSUPP;
f3f92586 4900
29cbe68c
JB		 4901 wdev_lock(wdev);
4902 /* If not connected, get default parameters */
4903 if (!wdev->mesh_id_len)
4904 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4905 else
e35e4d28 4906 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4907 wdev_unlock(wdev);
4908
93da9cc1 4909 if (err)
4c476991 4910 return err;
93da9cc1 4911
4912 /* Draw up a netlink message to send back */
fd2120ca 4913 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4914 if (!msg)
4915 return -ENOMEM;
15e47304 4916 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4917 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4918 if (!hdr)
efe1cf0c 4919 goto out;
24bdd9f4 4920 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4921 if (!pinfoattr)
4922 goto nla_put_failure;
9360ffd1
DM		 4923 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4924 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4925 cur_params.dot11MeshRetryTimeout) ||
4926 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4927 cur_params.dot11MeshConfirmTimeout) ||
4928 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4929 cur_params.dot11MeshHoldingTimeout) ||
4930 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4931 cur_params.dot11MeshMaxPeerLinks) ||
4932 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4933 cur_params.dot11MeshMaxRetries) ||
4934 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4935 cur_params.dot11MeshTTL) ||
4936 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4937 cur_params.element_ttl) ||
4938 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4939 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4940 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4941 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4942 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4943 cur_params.dot11MeshHWMPmaxPREQretries) ||
4944 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4945 cur_params.path_refresh_time) ||
4946 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4947 cur_params.min_discovery_timeout) ||
4948 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4949 cur_params.dot11MeshHWMPactivePathTimeout) ||
4950 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4951 cur_params.dot11MeshHWMPpreqMinInterval) ||
4952 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4953 cur_params.dot11MeshHWMPperrMinInterval) ||
4954 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4955 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4956 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4957 cur_params.dot11MeshHWMPRootMode) ||
4958 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4959 cur_params.dot11MeshHWMPRannInterval) ||
4960 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4961 cur_params.dot11MeshGateAnnouncementProtocol) ||
4962 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4963 cur_params.dot11MeshForwarding) ||
4964 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4965 cur_params.rssi_threshold) ||
4966 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4967 cur_params.ht_opmode) ||
4968 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4969 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4970 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4971 cur_params.dot11MeshHWMProotInterval) ||
4972 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4973 cur_params.dot11MeshHWMPconfirmationInterval) ||
4974 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4975 cur_params.power_mode) ||
4976 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4977 cur_params.dot11MeshAwakeWindowDuration) ||
4978 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4979 cur_params.plink_timeout))
9360ffd1 4980 goto nla_put_failure;
93da9cc1 4981 nla_nest_end(msg, pinfoattr);
4982 genlmsg_end(msg, hdr);
4c476991 4983 return genlmsg_reply(msg, info);
93da9cc1 4984
3b85875a 4985 nla_put_failure:
93da9cc1 4986 genlmsg_cancel(msg, hdr);
efe1cf0c 4987 out:
d080e275 4988 nlmsg_free(msg);
4c476991 4989 return -ENOBUFS;
93da9cc1 4990}
4991
b54452b0 4992static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4993 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4994 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4995 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4996 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4997 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4998 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4999 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5000 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5001 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5002 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5003 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5004 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5005 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5006 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5007 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5008 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5009 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5010 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5011 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5012 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5013 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5014 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5015 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5016 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5017 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5018 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5019 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5020 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5021};
5022
c80d545d
JC		 5023static const struct nla_policy
5024 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5025 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5026 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5027 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5028 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5029 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5030 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5031 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5032 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5033 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5034};
5035
24bdd9f4 5036static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5037 struct mesh_config *cfg,
5038 u32 *mask_out)
93da9cc1 5039{
93da9cc1 5040 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5041 u32 mask = 0;
93da9cc1 5042
ea54fba2
MP		 5043#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5044do { \
5045 if (tb[attr]) { \
5046 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5047 return -EINVAL; \
5048 cfg->param = fn(tb[attr]); \
5049 mask |= (1 << (attr - 1)); \
5050 } \
5051} while (0)
bd90fdcc
JB		 5052
5053
24bdd9f4 5054 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5055 return -EINVAL;
5056 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5057 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5058 nl80211_meshconf_params_policy))
93da9cc1 5059 return -EINVAL;
5060
93da9cc1 5061 /* This makes sure that there aren't more than 32 mesh config
5062 * parameters (otherwise our bitfield scheme would not work.) */
5063 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5064
5065 /* Fill in the params struct */
ea54fba2 5066 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5067 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5068 nla_get_u16);
ea54fba2 5069 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5070 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5071 nla_get_u16);
ea54fba2 5072 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5073 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5074 nla_get_u16);
ea54fba2 5075 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5076 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5077 nla_get_u16);
ea54fba2 5078 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5079 mask, NL80211_MESHCONF_MAX_RETRIES,
5080 nla_get_u8);
ea54fba2 5081 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5082 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5083 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5084 mask, NL80211_MESHCONF_ELEMENT_TTL,
5085 nla_get_u8);
ea54fba2 5086 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5087 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5088 nla_get_u8);
ea54fba2
MP		 5089 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5090 1, 255, mask,
a4f606ea
CYY		 5091 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5092 nla_get_u32);
ea54fba2 5093 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5094 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5095 nla_get_u8);
ea54fba2 5096 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5097 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5098 nla_get_u32);
ea54fba2 5099 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5100 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5101 nla_get_u16);
ea54fba2
MP		 5102 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5103 1, 65535, mask,
a4f606ea
CYY		 5104 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5105 nla_get_u32);
93da9cc1 5106 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5107 1, 65535, mask,
5108 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5109 nla_get_u16);
dca7e943 5110 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5111 1, 65535, mask,
5112 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5113 nla_get_u16);
93da9cc1 5114 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5115 dot11MeshHWMPnetDiameterTraversalTime,
5116 1, 65535, mask,
a4f606ea
CYY		 5117 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5118 nla_get_u16);
ea54fba2
MP		 5119 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5120 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5121 nla_get_u8);
5122 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5123 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5124 nla_get_u16);
63c5723b 5125 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5126 dot11MeshGateAnnouncementProtocol, 0, 1,
5127 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5128 nla_get_u8);
ea54fba2 5129 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5130 mask, NL80211_MESHCONF_FORWARDING,
5131 nla_get_u8);
83374fe9 5132 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5133 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5134 nla_get_s32);
ea54fba2 5135 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5136 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5137 nla_get_u16);
5138 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5139 1, 65535, mask,
ac1073a6
CYY		 5140 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5141 nla_get_u32);
ea54fba2 5142 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5143 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5144 nla_get_u16);
5145 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5146 dot11MeshHWMPconfirmationInterval,
5147 1, 65535, mask,
728b19e5 5148 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5149 nla_get_u16);
3b1c5a53
MP		 5150 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5151 NL80211_MESH_POWER_ACTIVE,
5152 NL80211_MESH_POWER_MAX,
5153 mask, NL80211_MESHCONF_POWER_MODE,
5154 nla_get_u32);
5155 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5156 0, 65535, mask,
5157 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5158 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5159 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5160 nla_get_u32);
bd90fdcc
JB		 5161 if (mask_out)
5162 *mask_out = mask;
c80d545d 5163
bd90fdcc
JB		 5164 return 0;
5165
5166#undef FILL_IN_MESH_PARAM_IF_SET
5167}
5168
c80d545d
JC		 5169static int nl80211_parse_mesh_setup(struct genl_info *info,
5170 struct mesh_setup *setup)
5171{
bb2798d4 5172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5173 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5174
5175 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5176 return -EINVAL;
5177 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5178 info->attrs[NL80211_ATTR_MESH_SETUP],
5179 nl80211_mesh_setup_params_policy))
5180 return -EINVAL;
5181
d299a1f2
JC		 5182 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5183 setup->sync_method =
5184 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5185 IEEE80211_SYNC_METHOD_VENDOR :
5186 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5187
c80d545d
JC		 5188 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5189 setup->path_sel_proto =
5190 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5191 IEEE80211_PATH_PROTOCOL_VENDOR :
5192 IEEE80211_PATH_PROTOCOL_HWMP;
5193
5194 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5195 setup->path_metric =
5196 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5197 IEEE80211_PATH_METRIC_VENDOR :
5198 IEEE80211_PATH_METRIC_AIRTIME;
5199
581a8b0f
JC		 5200
5201 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5202 struct nlattr *ieattr =
581a8b0f 5203 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5204 if (!is_valid_ie_attr(ieattr))
5205 return -EINVAL;
581a8b0f
JC		 5206 setup->ie = nla_data(ieattr);
5207 setup->ie_len = nla_len(ieattr);
c80d545d 5208 }
bb2798d4
TP		 5209 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5210 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5211 return -EINVAL;
5212 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5213 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5214 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5215 if (setup->is_secure)
5216 setup->user_mpm = true;
c80d545d 5217
6e16d90b
CT		 5218 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5219 if (!setup->user_mpm)
5220 return -EINVAL;
5221 setup->auth_id =
5222 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5223 }
5224
c80d545d
JC		 5225 return 0;
5226}
5227
24bdd9f4 5228static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5229 struct genl_info *info)
bd90fdcc
JB		 5230{
5231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5232 struct net_device *dev = info->user_ptr[1];
29cbe68c 5233 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5234 struct mesh_config cfg;
5235 u32 mask;
5236 int err;
5237
29cbe68c
JB		 5238 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5239 return -EOPNOTSUPP;
5240
24bdd9f4 5241 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5242 return -EOPNOTSUPP;
5243
24bdd9f4 5244 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5245 if (err)
5246 return err;
5247
29cbe68c
JB		 5248 wdev_lock(wdev);
5249 if (!wdev->mesh_id_len)
5250 err = -ENOLINK;
5251
5252 if (!err)
e35e4d28 5253 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5254
5255 wdev_unlock(wdev);
5256
5257 return err;
93da9cc1 5258}
5259
f130347c
LR		 5260static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5261{
458f4f9e 5262 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5263 struct sk_buff *msg;
5264 void *hdr = NULL;
5265 struct nlattr *nl_reg_rules;
5266 unsigned int i;
f130347c
LR		 5267
5268 if (!cfg80211_regdomain)
5fe231e8 5269 return -EINVAL;
f130347c 5270
fd2120ca 5271 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5272 if (!msg)
5273 return -ENOBUFS;
f130347c 5274
15e47304 5275 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5276 NL80211_CMD_GET_REG);
5277 if (!hdr)
efe1cf0c 5278 goto put_failure;
f130347c 5279
57b5ce07
LR		 5280 if (reg_last_request_cell_base() &&
5281 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5282 NL80211_USER_REG_HINT_CELL_BASE))
5283 goto nla_put_failure;
5284
458f4f9e
JB		 5285 rcu_read_lock();
5286 regdom = rcu_dereference(cfg80211_regdomain);
5287
5288 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5289 (regdom->dfs_region &&
5290 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5291 goto nla_put_failure_rcu;
5292
f130347c
LR		 5293 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5294 if (!nl_reg_rules)
458f4f9e 5295 goto nla_put_failure_rcu;
f130347c 5296
458f4f9e 5297 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5298 struct nlattr *nl_reg_rule;
5299 const struct ieee80211_reg_rule *reg_rule;
5300 const struct ieee80211_freq_range *freq_range;
5301 const struct ieee80211_power_rule *power_rule;
97524820 5302 unsigned int max_bandwidth_khz;
f130347c 5303
458f4f9e 5304 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5305 freq_range = &reg_rule->freq_range;
5306 power_rule = &reg_rule->power_rule;
5307
5308 nl_reg_rule = nla_nest_start(msg, i);
5309 if (!nl_reg_rule)
458f4f9e 5310 goto nla_put_failure_rcu;
f130347c 5311
97524820
JD		 5312 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5313 if (!max_bandwidth_khz)
5314 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5315 reg_rule);
5316
9360ffd1
DM		 5317 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5318 reg_rule->flags) ||
5319 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5320 freq_range->start_freq_khz) ||
5321 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5322 freq_range->end_freq_khz) ||
5323 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5324 max_bandwidth_khz) ||
9360ffd1
DM		 5325 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5326 power_rule->max_antenna_gain) ||
5327 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5328 power_rule->max_eirp) ||
5329 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5330 reg_rule->dfs_cac_ms))
458f4f9e 5331 goto nla_put_failure_rcu;
f130347c
LR		 5332
5333 nla_nest_end(msg, nl_reg_rule);
5334 }
458f4f9e 5335 rcu_read_unlock();
f130347c
LR		 5336
5337 nla_nest_end(msg, nl_reg_rules);
5338
5339 genlmsg_end(msg, hdr);
5fe231e8 5340 return genlmsg_reply(msg, info);
f130347c 5341
458f4f9e
JB		 5342nla_put_failure_rcu:
5343 rcu_read_unlock();
f130347c
LR		 5344nla_put_failure:
5345 genlmsg_cancel(msg, hdr);
efe1cf0c 5346put_failure:
d080e275 5347 nlmsg_free(msg);
5fe231e8 5348 return -EMSGSIZE;
f130347c
LR		 5349}
5350
b2e1b302
LR		 5351static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5352{
5353 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5354 struct nlattr *nl_reg_rule;
5355 char *alpha2 = NULL;
5356 int rem_reg_rules = 0, r = 0;
5357 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5358 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5359 struct ieee80211_regdomain *rd = NULL;
5360
5361 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5362 return -EINVAL;
5363
5364 if (!info->attrs[NL80211_ATTR_REG_RULES])
5365 return -EINVAL;
5366
5367 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5368
8b60b078
LR		 5369 if (info->attrs[NL80211_ATTR_DFS_REGION])
5370 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5371
b2e1b302 5372 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5373 rem_reg_rules) {
b2e1b302
LR		 5374 num_rules++;
5375 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5376 return -EINVAL;
b2e1b302
LR		 5377 }
5378
e438768f
LR		 5379 if (!reg_is_valid_request(alpha2))
5380 return -EINVAL;
5381
b2e1b302 5382 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5383 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5384
5385 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5386 if (!rd)
5387 return -ENOMEM;
b2e1b302
LR		 5388
5389 rd->n_reg_rules = num_rules;
5390 rd->alpha2[0] = alpha2[0];
5391 rd->alpha2[1] = alpha2[1];
5392
8b60b078
LR		 5393 /*
5394 * Disable DFS master mode if the DFS region was
5395 * not supported or known on this kernel.
5396 */
5397 if (reg_supported_dfs_region(dfs_region))
5398 rd->dfs_region = dfs_region;
5399
b2e1b302 5400 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5401 rem_reg_rules) {
ae811e21
JB		 5402 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5403 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5404 reg_rule_policy);
5405 if (r)
5406 goto bad_reg;
b2e1b302
LR		 5407 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5408 if (r)
5409 goto bad_reg;
5410
5411 rule_idx++;
5412
d0e18f83
LR		 5413 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5414 r = -EINVAL;
b2e1b302 5415 goto bad_reg;
d0e18f83 5416 }
b2e1b302
LR		 5417 }
5418
b2e1b302 5419 r = set_regdom(rd);
6913b49a 5420 /* set_regdom took ownership */
1a919318 5421 rd = NULL;
b2e1b302 5422
d2372b31 5423 bad_reg:
b2e1b302 5424 kfree(rd);
d0e18f83 5425 return r;
b2e1b302
LR		 5426}
5427
83f5e2cf
JB		 5428static int validate_scan_freqs(struct nlattr *freqs)
5429{
5430 struct nlattr *attr1, *attr2;
5431 int n_channels = 0, tmp1, tmp2;
5432
5433 nla_for_each_nested(attr1, freqs, tmp1) {
5434 n_channels++;
5435 /*
5436 * Some hardware has a limited channel list for
5437 * scanning, and it is pretty much nonsensical
5438 * to scan for a channel twice, so disallow that
5439 * and don't require drivers to check that the
5440 * channel list they get isn't longer than what
5441 * they can scan, as long as they can scan all
5442 * the channels they registered at once.
5443 */
5444 nla_for_each_nested(attr2, freqs, tmp2)
5445 if (attr1 != attr2 &&
5446 nla_get_u32(attr1) == nla_get_u32(attr2))
5447 return 0;
5448 }
5449
5450 return n_channels;
5451}
5452
2a519311
JB		 5453static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5454{
4c476991 5455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5456 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5457 struct cfg80211_scan_request *request;
2a519311
JB		 5458 struct nlattr *attr;
5459 struct wiphy *wiphy;
83f5e2cf 5460 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5461 size_t ie_len;
2a519311 5462
f4a11bb0
JB		 5463 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5464 return -EINVAL;
5465
79c97e97 5466 wiphy = &rdev->wiphy;
2a519311 5467
4c476991
JB		 5468 if (!rdev->ops->scan)
5469 return -EOPNOTSUPP;
2a519311 5470
f9d15d16 5471 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5472 err = -EBUSY;
5473 goto unlock;
5474 }
2a519311
JB		 5475
5476 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5477 n_channels = validate_scan_freqs(
5478 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5479 if (!n_channels) {
5480 err = -EINVAL;
5481 goto unlock;
5482 }
2a519311 5483 } else {
bdfbec2d 5484 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5485 }
5486
5487 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5488 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5489 n_ssids++;
5490
f9f47529
JB		 5491 if (n_ssids > wiphy->max_scan_ssids) {
5492 err = -EINVAL;
5493 goto unlock;
5494 }
2a519311 5495
70692ad2
JM		 5496 if (info->attrs[NL80211_ATTR_IE])
5497 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5498 else
5499 ie_len = 0;
5500
f9f47529
JB		 5501 if (ie_len > wiphy->max_scan_ie_len) {
5502 err = -EINVAL;
5503 goto unlock;
5504 }
18a83659 5505
2a519311 5506 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5507 + sizeof(*request->ssids) * n_ssids
5508 + sizeof(*request->channels) * n_channels
70692ad2 5509 + ie_len, GFP_KERNEL);
f9f47529
JB		 5510 if (!request) {
5511 err = -ENOMEM;
5512 goto unlock;
5513 }
2a519311 5514
2a519311 5515 if (n_ssids)
5ba63533 5516 request->ssids = (void *)&request->channels[n_channels];
2a519311 5517 request->n_ssids = n_ssids;
70692ad2
JM		 5518 if (ie_len) {
5519 if (request->ssids)
5520 request->ie = (void *)(request->ssids + n_ssids);
5521 else
5522 request->ie = (void *)(request->channels + n_channels);
5523 }
2a519311 5524
584991dc 5525 i = 0;
2a519311
JB		 5526 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5527 /* user specified, bail out if channel not found */
2a519311 5528 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5529 struct ieee80211_channel *chan;
5530
5531 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5532
5533 if (!chan) {
2a519311
JB		 5534 err = -EINVAL;
5535 goto out_free;
5536 }
584991dc
JB		 5537
5538 /* ignore disabled channels */
5539 if (chan->flags & IEEE80211_CHAN_DISABLED)
5540 continue;
5541
5542 request->channels[i] = chan;
2a519311
JB		 5543 i++;
5544 }
5545 } else {
34850ab2
JB		 5546 enum ieee80211_band band;
5547
2a519311 5548 /* all channels */
2a519311
JB		 5549 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5550 int j;
5551 if (!wiphy->bands[band])
5552 continue;
5553 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5554 struct ieee80211_channel *chan;
5555
5556 chan = &wiphy->bands[band]->channels[j];
5557
5558 if (chan->flags & IEEE80211_CHAN_DISABLED)
5559 continue;
5560
5561 request->channels[i] = chan;
2a519311
JB		 5562 i++;
5563 }
5564 }
5565 }
5566
584991dc
JB		 5567 if (!i) {
5568 err = -EINVAL;
5569 goto out_free;
5570 }
5571
5572 request->n_channels = i;
5573
2a519311
JB		 5574 i = 0;
5575 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5576 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5577 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5578 err = -EINVAL;
5579 goto out_free;
5580 }
57a27e1d 5581 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5582 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5583 i++;
5584 }
5585 }
5586
70692ad2
JM		 5587 if (info->attrs[NL80211_ATTR_IE]) {
5588 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5589 memcpy((void *)request->ie,
5590 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5591 request->ie_len);
5592 }
5593
34850ab2 5594 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5595 if (wiphy->bands[i])
5596 request->rates[i] =
5597 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5598
5599 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5600 nla_for_each_nested(attr,
5601 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5602 tmp) {
5603 enum ieee80211_band band = nla_type(attr);
5604
84404623 5605 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5606 err = -EINVAL;
5607 goto out_free;
5608 }
1b09cd82
FF		 5609
5610 if (!wiphy->bands[band])
5611 continue;
5612
34850ab2
JB		 5613 err = ieee80211_get_ratemask(wiphy->bands[band],
5614 nla_data(attr),
5615 nla_len(attr),
5616 &request->rates[band]);
5617 if (err)
5618 goto out_free;
5619 }
5620 }
5621
46856bbf 5622 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5623 request->flags = nla_get_u32(
5624 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5625 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5626 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5627 err = -EOPNOTSUPP;
5628 goto out_free;
5629 }
5630 }
ed473771 5631
e9f935e3
RM		 5632 request->no_cck =
5633 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5634
fd014284 5635 request->wdev = wdev;
79c97e97 5636 request->wiphy = &rdev->wiphy;
15d6030b 5637 request->scan_start = jiffies;
2a519311 5638
79c97e97 5639 rdev->scan_req = request;
e35e4d28 5640 err = rdev_scan(rdev, request);
2a519311 5641
463d0183 5642 if (!err) {
fd014284
JB		 5643 nl80211_send_scan_start(rdev, wdev);
5644 if (wdev->netdev)
5645 dev_hold(wdev->netdev);
4c476991 5646 } else {
2a519311 5647 out_free:
79c97e97 5648 rdev->scan_req = NULL;
2a519311
JB		 5649 kfree(request);
5650 }
3b85875a 5651
f9f47529 5652 unlock:
2a519311
JB		 5653 return err;
5654}
5655
807f8a8c
LC		 5656static int nl80211_start_sched_scan(struct sk_buff *skb,
5657 struct genl_info *info)
5658{
5659 struct cfg80211_sched_scan_request *request;
5660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5661 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5662 struct nlattr *attr;
5663 struct wiphy *wiphy;
a1f1c21c 5664 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5665 u32 interval;
807f8a8c
LC		 5666 enum ieee80211_band band;
5667 size_t ie_len;
a1f1c21c 5668 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5669 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5670
5671 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5672 !rdev->ops->sched_scan_start)
5673 return -EOPNOTSUPP;
5674
5675 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5676 return -EINVAL;
5677
bbe6ad6d
LC		 5678 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5679 return -EINVAL;
5680
5681 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5682 if (interval == 0)
5683 return -EINVAL;
5684
807f8a8c
LC		 5685 wiphy = &rdev->wiphy;
5686
5687 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5688 n_channels = validate_scan_freqs(
5689 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5690 if (!n_channels)
5691 return -EINVAL;
5692 } else {
bdfbec2d 5693 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5694 }
5695
5696 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5697 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5698 tmp)
5699 n_ssids++;
5700
93b6aa69 5701 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5702 return -EINVAL;
5703
ea73cbce
JB		 5704 /*
5705 * First, count the number of 'real' matchsets. Due to an issue with
5706 * the old implementation, matchsets containing only the RSSI attribute
5707 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5708 * RSSI for all matchsets, rather than their own matchset for reporting
5709 * all APs with a strong RSSI. This is needed to be compatible with
5710 * older userspace that treated a matchset with only the RSSI as the
5711 * global RSSI for all other matchsets - if there are other matchsets.
5712 */
5713 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5714 nla_for_each_nested(attr,
5715 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5716 tmp) {
5717 struct nlattr *rssi;
5718
5719 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5720 nla_data(attr), nla_len(attr),
5721 nl80211_match_policy);
5722 if (err)
5723 return err;
5724 /* add other standalone attributes here */
5725 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5726 n_match_sets++;
5727 continue;
5728 }
5729 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5730 if (rssi)
5731 default_match_rssi = nla_get_s32(rssi);
5732 }
5733 }
5734
5735 /* However, if there's no other matchset, add the RSSI one */
5736 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5737 n_match_sets = 1;
a1f1c21c
LC		 5738
5739 if (n_match_sets > wiphy->max_match_sets)
5740 return -EINVAL;
5741
807f8a8c
LC		 5742 if (info->attrs[NL80211_ATTR_IE])
5743 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5744 else
5745 ie_len = 0;
5746
5a865bad 5747 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5748 return -EINVAL;
5749
c10841ca
LC		 5750 if (rdev->sched_scan_req) {
5751 err = -EINPROGRESS;
5752 goto out;
5753 }
5754
807f8a8c 5755 request = kzalloc(sizeof(*request)
a2cd43c5 5756 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5757 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5758 + sizeof(*request->channels) * n_channels
807f8a8c 5759 + ie_len, GFP_KERNEL);
c10841ca
LC		 5760 if (!request) {
5761 err = -ENOMEM;
5762 goto out;
5763 }
807f8a8c
LC		 5764
5765 if (n_ssids)
5766 request->ssids = (void *)&request->channels[n_channels];
5767 request->n_ssids = n_ssids;
5768 if (ie_len) {
5769 if (request->ssids)
5770 request->ie = (void *)(request->ssids + n_ssids);
5771 else
5772 request->ie = (void *)(request->channels + n_channels);
5773 }
5774
a1f1c21c
LC		 5775 if (n_match_sets) {
5776 if (request->ie)
5777 request->match_sets = (void *)(request->ie + ie_len);
5778 else if (request->ssids)
5779 request->match_sets =
5780 (void *)(request->ssids + n_ssids);
5781 else
5782 request->match_sets =
5783 (void *)(request->channels + n_channels);
5784 }
5785 request->n_match_sets = n_match_sets;
5786
807f8a8c
LC		 5787 i = 0;
5788 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5789 /* user specified, bail out if channel not found */
5790 nla_for_each_nested(attr,
5791 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5792 tmp) {
5793 struct ieee80211_channel *chan;
5794
5795 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5796
5797 if (!chan) {
5798 err = -EINVAL;
5799 goto out_free;
5800 }
5801
5802 /* ignore disabled channels */
5803 if (chan->flags & IEEE80211_CHAN_DISABLED)
5804 continue;
5805
5806 request->channels[i] = chan;
5807 i++;
5808 }
5809 } else {
5810 /* all channels */
5811 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5812 int j;
5813 if (!wiphy->bands[band])
5814 continue;
5815 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5816 struct ieee80211_channel *chan;
5817
5818 chan = &wiphy->bands[band]->channels[j];
5819
5820 if (chan->flags & IEEE80211_CHAN_DISABLED)
5821 continue;
5822
5823 request->channels[i] = chan;
5824 i++;
5825 }
5826 }
5827 }
5828
5829 if (!i) {
5830 err = -EINVAL;
5831 goto out_free;
5832 }
5833
5834 request->n_channels = i;
5835
5836 i = 0;
5837 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5838 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5839 tmp) {
57a27e1d 5840 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5841 err = -EINVAL;
5842 goto out_free;
5843 }
57a27e1d 5844 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5845 memcpy(request->ssids[i].ssid, nla_data(attr),
5846 nla_len(attr));
807f8a8c
LC		 5847 i++;
5848 }
5849 }
5850
a1f1c21c
LC		 5851 i = 0;
5852 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5853 nla_for_each_nested(attr,
5854 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5855 tmp) {
88e920b4 5856 struct nlattr *ssid, *rssi;
a1f1c21c 5857
ae811e21
JB		 5858 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5859 nla_data(attr), nla_len(attr),
5860 nl80211_match_policy);
5861 if (err)
5862 goto out_free;
4a4ab0d7 5863 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5864 if (ssid) {
ea73cbce
JB		 5865 if (WARN_ON(i >= n_match_sets)) {
5866 /* this indicates a programming error,
5867 * the loop above should have verified
5868 * things properly
5869 */
5870 err = -EINVAL;
5871 goto out_free;
5872 }
5873
a1f1c21c
LC		 5874 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5875 err = -EINVAL;
5876 goto out_free;
5877 }
5878 memcpy(request->match_sets[i].ssid.ssid,
5879 nla_data(ssid), nla_len(ssid));
5880 request->match_sets[i].ssid.ssid_len =
5881 nla_len(ssid);
ea73cbce
JB		 5882 /* special attribute - old implemenation w/a */
5883 request->match_sets[i].rssi_thold =
5884 default_match_rssi;
5885 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5886 if (rssi)
5887 request->match_sets[i].rssi_thold =
5888 nla_get_s32(rssi);
a1f1c21c
LC		 5889 }
5890 i++;
5891 }
ea73cbce
JB		 5892
5893 /* there was no other matchset, so the RSSI one is alone */
5894 if (i == 0)
5895 request->match_sets[0].rssi_thold = default_match_rssi;
5896
5897 request->min_rssi_thold = INT_MAX;
5898 for (i = 0; i < n_match_sets; i++)
5899 request->min_rssi_thold =
5900 min(request->match_sets[i].rssi_thold,
5901 request->min_rssi_thold);
5902 } else {
5903 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5904 }
5905
9900e484
JB		 5906 if (ie_len) {
5907 request->ie_len = ie_len;
807f8a8c
LC		 5908 memcpy((void *)request->ie,
5909 nla_data(info->attrs[NL80211_ATTR_IE]),
5910 request->ie_len);
5911 }
5912
46856bbf 5913 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5914 request->flags = nla_get_u32(
5915 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5916 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5917 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5918 err = -EOPNOTSUPP;
5919 goto out_free;
5920 }
5921 }
ed473771 5922
807f8a8c
LC		 5923 request->dev = dev;
5924 request->wiphy = &rdev->wiphy;
bbe6ad6d 5925 request->interval = interval;
15d6030b 5926 request->scan_start = jiffies;
807f8a8c 5927
e35e4d28 5928 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5929 if (!err) {
5930 rdev->sched_scan_req = request;
5931 nl80211_send_sched_scan(rdev, dev,
5932 NL80211_CMD_START_SCHED_SCAN);
5933 goto out;
5934 }
5935
5936out_free:
5937 kfree(request);
5938out:
5939 return err;
5940}
5941
5942static int nl80211_stop_sched_scan(struct sk_buff *skb,
5943 struct genl_info *info)
5944{
5945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5946
5947 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5948 !rdev->ops->sched_scan_stop)
5949 return -EOPNOTSUPP;
5950
5fe231e8 5951 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5952}
5953
04f39047
SW		 5954static int nl80211_start_radar_detection(struct sk_buff *skb,
5955 struct genl_info *info)
5956{
5957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5958 struct net_device *dev = info->user_ptr[1];
5959 struct wireless_dev *wdev = dev->ieee80211_ptr;
5960 struct cfg80211_chan_def chandef;
55f7435c 5961 enum nl80211_dfs_regions dfs_region;
31559f35 5962 unsigned int cac_time_ms;
04f39047
SW		 5963 int err;
5964
55f7435c
LR		 5965 dfs_region = reg_get_dfs_region(wdev->wiphy);
5966 if (dfs_region == NL80211_DFS_UNSET)
5967 return -EINVAL;
5968
04f39047
SW		 5969 err = nl80211_parse_chandef(rdev, info, &chandef);
5970 if (err)
5971 return err;
5972
ff311bc1
SW		 5973 if (netif_carrier_ok(dev))
5974 return -EBUSY;
5975
04f39047
SW		 5976 if (wdev->cac_started)
5977 return -EBUSY;
5978
2beb6dab 5979 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5980 wdev->iftype);
04f39047
SW		 5981 if (err < 0)
5982 return err;
5983
5984 if (err == 0)
5985 return -EINVAL;
5986
fe7c3a1f 5987 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5988 return -EINVAL;
5989
5990 if (!rdev->ops->start_radar_detection)
5991 return -EOPNOTSUPP;
5992
31559f35
JD		 5993 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5994 if (WARN_ON(!cac_time_ms))
5995 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5996
5997 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5998 cac_time_ms);
04f39047 5999 if (!err) {
9e0e2961 6000 wdev->chandef = chandef;
04f39047
SW		 6001 wdev->cac_started = true;
6002 wdev->cac_start_time = jiffies;
31559f35 6003 wdev->cac_time_ms = cac_time_ms;
04f39047 6004 }
04f39047
SW		 6005 return err;
6006}
6007
16ef1fe2
SW		 6008static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6009{
6010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6011 struct net_device *dev = info->user_ptr[1];
6012 struct wireless_dev *wdev = dev->ieee80211_ptr;
6013 struct cfg80211_csa_settings params;
6014 /* csa_attrs is defined static to avoid waste of stack size - this
6015 * function is called under RTNL lock, so this should not be a problem.
6016 */
6017 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6018 u8 radar_detect_width = 0;
6019 int err;
ee4bc9e7 6020 bool need_new_beacon = false;
9a774c78 6021 int len, i;
16ef1fe2
SW		 6022
6023 if (!rdev->ops->channel_switch ||
6024 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6025 return -EOPNOTSUPP;
6026
ee4bc9e7
SW		 6027 switch (dev->ieee80211_ptr->iftype) {
6028 case NL80211_IFTYPE_AP:
6029 case NL80211_IFTYPE_P2P_GO:
6030 need_new_beacon = true;
6031
6032 /* useless if AP is not running */
6033 if (!wdev->beacon_interval)
1ff79dfa 6034 return -ENOTCONN;
ee4bc9e7
SW		 6035 break;
6036 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6037 if (!wdev->ssid_len)
6038 return -ENOTCONN;
6039 break;
c6da674a 6040 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6041 if (!wdev->mesh_id_len)
6042 return -ENOTCONN;
ee4bc9e7
SW		 6043 break;
6044 default:
16ef1fe2 6045 return -EOPNOTSUPP;
ee4bc9e7 6046 }
16ef1fe2
SW		 6047
6048 memset(&params, 0, sizeof(params));
6049
6050 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6051 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6052 return -EINVAL;
6053
6054 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6055 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6056 return -EINVAL;
6057
6058 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6059
ee4bc9e7
SW		 6060 if (!need_new_beacon)
6061 goto skip_beacons;
6062
16ef1fe2
SW		 6063 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6064 if (err)
6065 return err;
6066
6067 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6068 info->attrs[NL80211_ATTR_CSA_IES],
6069 nl80211_policy);
6070 if (err)
6071 return err;
6072
6073 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6074 if (err)
6075 return err;
6076
6077 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6078 return -EINVAL;
6079
9a774c78
AO		 6080 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6081 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6082 return -EINVAL;
6083
9a774c78
AO		 6084 params.n_counter_offsets_beacon = len / sizeof(u16);
6085 if (rdev->wiphy.max_num_csa_counters &&
6086 (params.n_counter_offsets_beacon >
6087 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6088 return -EINVAL;
6089
9a774c78
AO		 6090 params.counter_offsets_beacon =
6091 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6092
6093 /* sanity checks - counters should fit and be the same */
6094 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6095 u16 offset = params.counter_offsets_beacon[i];
6096
6097 if (offset >= params.beacon_csa.tail_len)
6098 return -EINVAL;
6099
6100 if (params.beacon_csa.tail[offset] != params.count)
6101 return -EINVAL;
6102 }
6103
16ef1fe2 6104 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6105 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6106 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6107 return -EINVAL;
6108
9a774c78
AO		 6109 params.n_counter_offsets_presp = len / sizeof(u16);
6110 if (rdev->wiphy.max_num_csa_counters &&
6111 (params.n_counter_offsets_beacon >
6112 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6113 return -EINVAL;
9a774c78
AO		 6114
6115 params.counter_offsets_presp =
6116 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6117
6118 /* sanity checks - counters should fit and be the same */
6119 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6120 u16 offset = params.counter_offsets_presp[i];
6121
6122 if (offset >= params.beacon_csa.probe_resp_len)
6123 return -EINVAL;
6124
6125 if (params.beacon_csa.probe_resp[offset] !=
6126 params.count)
6127 return -EINVAL;
6128 }
16ef1fe2
SW		 6129 }
6130
ee4bc9e7 6131skip_beacons:
16ef1fe2
SW		 6132 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6133 if (err)
6134 return err;
6135
174e0cd2
IP		 6136 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6137 wdev->iftype))
16ef1fe2
SW		 6138 return -EINVAL;
6139
2beb6dab
LC		 6140 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6141 &params.chandef,
6142 wdev->iftype);
6143 if (err < 0)
6144 return err;
6145
6146 if (err > 0) {
6147 radar_detect_width = BIT(params.chandef.width);
6148 params.radar_required = true;
16ef1fe2
SW		 6149 }
6150
16ef1fe2
SW		 6151 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6152 params.block_tx = true;
6153
c56589ed
SW		 6154 wdev_lock(wdev);
6155 err = rdev_channel_switch(rdev, dev, &params);
6156 wdev_unlock(wdev);
6157
6158 return err;
16ef1fe2
SW		 6159}
6160
9720bb3a
JB		 6161static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6162 u32 seq, int flags,
2a519311 6163 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6164 struct wireless_dev *wdev,
6165 struct cfg80211_internal_bss *intbss)
2a519311 6166{
48ab905d 6167 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6168 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6169 void *hdr;
6170 struct nlattr *bss;
48ab905d
JB		 6171
6172 ASSERT_WDEV_LOCK(wdev);
2a519311 6173
15e47304 6174 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6175 NL80211_CMD_NEW_SCAN_RESULTS);
6176 if (!hdr)
6177 return -1;
6178
9720bb3a
JB		 6179 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6180
97990a06
JB		 6181 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6182 goto nla_put_failure;
6183 if (wdev->netdev &&
9360ffd1
DM		 6184 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6185 goto nla_put_failure;
97990a06
JB		 6186 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6187 goto nla_put_failure;
2a519311
JB		 6188
6189 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6190 if (!bss)
6191 goto nla_put_failure;
9360ffd1 6192 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6193 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6194 goto nla_put_failure;
9caf0364
JB		 6195
6196 rcu_read_lock();
0e227084
JB		 6197 /* indicate whether we have probe response data or not */
6198 if (rcu_access_pointer(res->proberesp_ies) &&
6199 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6200 goto fail_unlock_rcu;
6201
6202 /* this pointer prefers to be pointed to probe response data
6203 * but is always valid
6204 */
9caf0364 6205 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6206 if (ies) {
6207 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6208 goto fail_unlock_rcu;
8cef2c9d
JB		 6209 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6210 ies->len, ies->data))
6211 goto fail_unlock_rcu;
9caf0364 6212 }
0e227084
JB		 6213
6214 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6215 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6216 if (ies && ies->from_beacon) {
6217 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6218 goto fail_unlock_rcu;
6219 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6220 ies->len, ies->data))
6221 goto fail_unlock_rcu;
9caf0364
JB		 6222 }
6223 rcu_read_unlock();
6224
9360ffd1
DM		 6225 if (res->beacon_interval &&
6226 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6227 goto nla_put_failure;
6228 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6229 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6230 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6231 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6232 jiffies_to_msecs(jiffies - intbss->ts)))
6233 goto nla_put_failure;
2a519311 6234
77965c97 6235 switch (rdev->wiphy.signal_type) {
2a519311 6236 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6237 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6238 goto nla_put_failure;
2a519311
JB		 6239 break;
6240 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6241 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6242 goto nla_put_failure;
2a519311
JB		 6243 break;
6244 default:
6245 break;
6246 }
6247
48ab905d 6248 switch (wdev->iftype) {
074ac8df 6249 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6250 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6251 if (intbss == wdev->current_bss &&
6252 nla_put_u32(msg, NL80211_BSS_STATUS,
6253 NL80211_BSS_STATUS_ASSOCIATED))
6254 goto nla_put_failure;
48ab905d
JB		 6255 break;
6256 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6257 if (intbss == wdev->current_bss &&
6258 nla_put_u32(msg, NL80211_BSS_STATUS,
6259 NL80211_BSS_STATUS_IBSS_JOINED))
6260 goto nla_put_failure;
48ab905d
JB		 6261 break;
6262 default:
6263 break;
6264 }
6265
2a519311
JB		 6266 nla_nest_end(msg, bss);
6267
6268 return genlmsg_end(msg, hdr);
6269
8cef2c9d
JB		 6270 fail_unlock_rcu:
6271 rcu_read_unlock();
2a519311
JB		 6272 nla_put_failure:
6273 genlmsg_cancel(msg, hdr);
6274 return -EMSGSIZE;
6275}
6276
97990a06 6277static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6278{
48ab905d 6279 struct cfg80211_registered_device *rdev;
2a519311 6280 struct cfg80211_internal_bss *scan;
48ab905d 6281 struct wireless_dev *wdev;
97990a06 6282 int start = cb->args[2], idx = 0;
2a519311
JB		 6283 int err;
6284
97990a06 6285 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6286 if (err)
6287 return err;
2a519311 6288
48ab905d
JB		 6289 wdev_lock(wdev);
6290 spin_lock_bh(&rdev->bss_lock);
6291 cfg80211_bss_expire(rdev);
6292
9720bb3a
JB		 6293 cb->seq = rdev->bss_generation;
6294
48ab905d 6295 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6296 if (++idx <= start)
6297 continue;
9720bb3a 6298 if (nl80211_send_bss(skb, cb,
2a519311 6299 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6300 rdev, wdev, scan) < 0) {
2a519311 6301 idx--;
67748893 6302 break;
2a519311
JB		 6303 }
6304 }
6305
48ab905d
JB		 6306 spin_unlock_bh(&rdev->bss_lock);
6307 wdev_unlock(wdev);
2a519311 6308
97990a06
JB		 6309 cb->args[2] = idx;
6310 nl80211_finish_wdev_dump(rdev);
2a519311 6311
67748893 6312 return skb->len;
2a519311
JB		 6313}
6314
15e47304 6315static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6316 int flags, struct net_device *dev,
6317 struct survey_info *survey)
6318{
6319 void *hdr;
6320 struct nlattr *infoattr;
6321
15e47304 6322 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6323 NL80211_CMD_NEW_SURVEY_RESULTS);
6324 if (!hdr)
6325 return -ENOMEM;
6326
9360ffd1
DM		 6327 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6328 goto nla_put_failure;
61fa713c
HS		 6329
6330 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6331 if (!infoattr)
6332 goto nla_put_failure;
6333
9360ffd1
DM		 6334 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6335 survey->channel->center_freq))
6336 goto nla_put_failure;
6337
6338 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6339 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6340 goto nla_put_failure;
6341 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6342 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6343 goto nla_put_failure;
6344 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6345 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6346 survey->channel_time))
6347 goto nla_put_failure;
6348 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6349 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6350 survey->channel_time_busy))
6351 goto nla_put_failure;
6352 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6353 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6354 survey->channel_time_ext_busy))
6355 goto nla_put_failure;
6356 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6357 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6358 survey->channel_time_rx))
6359 goto nla_put_failure;
6360 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6361 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6362 survey->channel_time_tx))
6363 goto nla_put_failure;
61fa713c
HS		 6364
6365 nla_nest_end(msg, infoattr);
6366
6367 return genlmsg_end(msg, hdr);
6368
6369 nla_put_failure:
6370 genlmsg_cancel(msg, hdr);
6371 return -EMSGSIZE;
6372}
6373
6374static int nl80211_dump_survey(struct sk_buff *skb,
6375 struct netlink_callback *cb)
6376{
6377 struct survey_info survey;
1b8ec87a 6378 struct cfg80211_registered_device *rdev;
97990a06
JB		 6379 struct wireless_dev *wdev;
6380 int survey_idx = cb->args[2];
61fa713c
HS		 6381 int res;
6382
1b8ec87a 6383 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6384 if (res)
6385 return res;
61fa713c 6386
97990a06
JB		 6387 if (!wdev->netdev) {
6388 res = -EINVAL;
6389 goto out_err;
6390 }
6391
1b8ec87a 6392 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6393 res = -EOPNOTSUPP;
6394 goto out_err;
6395 }
6396
6397 while (1) {
180cdc79
LR		 6398 struct ieee80211_channel *chan;
6399
1b8ec87a 6400 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6401 if (res == -ENOENT)
6402 break;
6403 if (res)
6404 goto out_err;
6405
180cdc79
LR		 6406 /* Survey without a channel doesn't make sense */
6407 if (!survey.channel) {
6408 res = -EINVAL;
6409 goto out;
6410 }
6411
1b8ec87a 6412 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6413 survey.channel->center_freq);
6414 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6415 survey_idx++;
6416 continue;
6417 }
6418
61fa713c 6419 if (nl80211_send_survey(skb,
15e47304 6420 NETLINK_CB(cb->skb).portid,
61fa713c 6421 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6422 wdev->netdev, &survey) < 0)
61fa713c
HS		 6423 goto out;
6424 survey_idx++;
6425 }
6426
6427 out:
97990a06 6428 cb->args[2] = survey_idx;
61fa713c
HS		 6429 res = skb->len;
6430 out_err:
1b8ec87a 6431 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6432 return res;
6433}
6434
b23aa676
SO		 6435static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6436{
6437 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6438 NL80211_WPA_VERSION_2));
6439}
6440
636a5d36
JM		 6441static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6442{
4c476991
JB		 6443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6444 struct net_device *dev = info->user_ptr[1];
19957bb3 6445 struct ieee80211_channel *chan;
e39e5b5e
JM		 6446 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6447 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6448 enum nl80211_auth_type auth_type;
fffd0934 6449 struct key_parse key;
d5cdfacb 6450 bool local_state_change;
636a5d36 6451
f4a11bb0
JB		 6452 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6453 return -EINVAL;
6454
6455 if (!info->attrs[NL80211_ATTR_MAC])
6456 return -EINVAL;
6457
1778092e
JM		 6458 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6459 return -EINVAL;
6460
19957bb3
JB		 6461 if (!info->attrs[NL80211_ATTR_SSID])
6462 return -EINVAL;
6463
6464 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6465 return -EINVAL;
6466
fffd0934
JB		 6467 err = nl80211_parse_key(info, &key);
6468 if (err)
6469 return err;
6470
6471 if (key.idx >= 0) {
e31b8213
JB		 6472 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6473 return -EINVAL;
fffd0934
JB		 6474 if (!key.p.key || !key.p.key_len)
6475 return -EINVAL;
6476 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6477 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6478 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6479 key.p.key_len != WLAN_KEY_LEN_WEP104))
6480 return -EINVAL;
6481 if (key.idx > 4)
6482 return -EINVAL;
6483 } else {
6484 key.p.key_len = 0;
6485 key.p.key = NULL;
6486 }
6487
afea0b7a
JB		 6488 if (key.idx >= 0) {
6489 int i;
6490 bool ok = false;
6491 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6492 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6493 ok = true;
6494 break;
6495 }
6496 }
4c476991
JB		 6497 if (!ok)
6498 return -EINVAL;
afea0b7a
JB		 6499 }
6500
4c476991
JB		 6501 if (!rdev->ops->auth)
6502 return -EOPNOTSUPP;
636a5d36 6503
074ac8df 6504 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6505 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6506 return -EOPNOTSUPP;
eec60b03 6507
19957bb3 6508 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6509 chan = nl80211_get_valid_chan(&rdev->wiphy,
6510 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6511 if (!chan)
4c476991 6512 return -EINVAL;
636a5d36 6513
19957bb3
JB		 6514 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6515 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6516
6517 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6518 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6519 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6520 }
6521
19957bb3 6522 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6523 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6524 return -EINVAL;
636a5d36 6525
e39e5b5e
JM		 6526 if (auth_type == NL80211_AUTHTYPE_SAE &&
6527 !info->attrs[NL80211_ATTR_SAE_DATA])
6528 return -EINVAL;
6529
6530 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6531 if (auth_type != NL80211_AUTHTYPE_SAE)
6532 return -EINVAL;
6533 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6534 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6535 /* need to include at least Auth Transaction and Status Code */
6536 if (sae_data_len < 4)
6537 return -EINVAL;
6538 }
6539
d5cdfacb
JM		 6540 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6541
95de817b
JB		 6542 /*
6543 * Since we no longer track auth state, ignore
6544 * requests to only change local state.
6545 */
6546 if (local_state_change)
6547 return 0;
6548
91bf9b26
JB		 6549 wdev_lock(dev->ieee80211_ptr);
6550 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6551 ssid, ssid_len, ie, ie_len,
6552 key.p.key, key.p.key_len, key.idx,
6553 sae_data, sae_data_len);
6554 wdev_unlock(dev->ieee80211_ptr);
6555 return err;
636a5d36
JM		 6556}
6557
c0692b8f
JB		 6558static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6559 struct genl_info *info,
3dc27d25
JB		 6560 struct cfg80211_crypto_settings *settings,
6561 int cipher_limit)
b23aa676 6562{
c0b2bbd8
JB		 6563 memset(settings, 0, sizeof(*settings));
6564
b23aa676
SO		 6565 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6566
c0692b8f
JB		 6567 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6568 u16 proto;
6569 proto = nla_get_u16(
6570 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6571 settings->control_port_ethertype = cpu_to_be16(proto);
6572 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6573 proto != ETH_P_PAE)
6574 return -EINVAL;
6575 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6576 settings->control_port_no_encrypt = true;
6577 } else
6578 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6579
b23aa676
SO		 6580 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6581 void *data;
6582 int len, i;
6583
6584 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6585 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6586 settings->n_ciphers_pairwise = len / sizeof(u32);
6587
6588 if (len % sizeof(u32))
6589 return -EINVAL;
6590
3dc27d25 6591 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6592 return -EINVAL;
6593
6594 memcpy(settings->ciphers_pairwise, data, len);
6595
6596 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6597 if (!cfg80211_supported_cipher_suite(
6598 &rdev->wiphy,
b23aa676
SO		 6599 settings->ciphers_pairwise[i]))
6600 return -EINVAL;
6601 }
6602
6603 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6604 settings->cipher_group =
6605 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6606 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6607 settings->cipher_group))
b23aa676
SO		 6608 return -EINVAL;
6609 }
6610
6611 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6612 settings->wpa_versions =
6613 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6614 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6615 return -EINVAL;
6616 }
6617
6618 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6619 void *data;
6d30240e 6620 int len;
b23aa676
SO		 6621
6622 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6623 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6624 settings->n_akm_suites = len / sizeof(u32);
6625
6626 if (len % sizeof(u32))
6627 return -EINVAL;
6628
1b9ca027
JM		 6629 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6630 return -EINVAL;
6631
b23aa676 6632 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6633 }
6634
6635 return 0;
6636}
6637
636a5d36
JM		 6638static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6639{
4c476991
JB		 6640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6641 struct net_device *dev = info->user_ptr[1];
f444de05 6642 struct ieee80211_channel *chan;
f62fab73
JB		 6643 struct cfg80211_assoc_request req = {};
6644 const u8 *bssid, *ssid;
6645 int err, ssid_len = 0;
636a5d36 6646
f4a11bb0
JB		 6647 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6648 return -EINVAL;
6649
6650 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6651 !info->attrs[NL80211_ATTR_SSID] ||
6652 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6653 return -EINVAL;
6654
4c476991
JB		 6655 if (!rdev->ops->assoc)
6656 return -EOPNOTSUPP;
636a5d36 6657
074ac8df 6658 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6659 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6660 return -EOPNOTSUPP;
eec60b03 6661
19957bb3 6662 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6663
664834de
JM		 6664 chan = nl80211_get_valid_chan(&rdev->wiphy,
6665 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6666 if (!chan)
4c476991 6667 return -EINVAL;
636a5d36 6668
19957bb3
JB		 6669 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6670 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6671
6672 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6673 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6674 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6675 }
6676
dc6382ce 6677 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6678 enum nl80211_mfp mfp =
dc6382ce 6679 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6680 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6681 req.use_mfp = true;
4c476991
JB		 6682 else if (mfp != NL80211_MFP_NO)
6683 return -EINVAL;
dc6382ce
JM		 6684 }
6685
3e5d7649 6686 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6687 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6688
7e7c8926 6689 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6690 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6691
6692 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6693 memcpy(&req.ht_capa_mask,
6694 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6695 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6696
6697 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6698 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6699 return -EINVAL;
f62fab73
JB		 6700 memcpy(&req.ht_capa,
6701 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6702 sizeof(req.ht_capa));
7e7c8926
BG		 6703 }
6704
ee2aca34 6705 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6706 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6707
6708 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6709 memcpy(&req.vht_capa_mask,
6710 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6711 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6712
6713 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6714 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6715 return -EINVAL;
f62fab73
JB		 6716 memcpy(&req.vht_capa,
6717 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6718 sizeof(req.vht_capa));
ee2aca34
JB		 6719 }
6720
bab5ab7d
AK		 6721 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6722 if (!(rdev->wiphy.features &
6723 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6724 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6725 return -EINVAL;
6726 req.flags |= ASSOC_REQ_USE_RRM;
6727 }
6728
f62fab73 6729 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6730 if (!err) {
6731 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6732 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6733 ssid, ssid_len, &req);
91bf9b26
JB		 6734 wdev_unlock(dev->ieee80211_ptr);
6735 }
636a5d36 6736
636a5d36
JM		 6737 return err;
6738}
6739
6740static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6741{
4c476991
JB		 6742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6743 struct net_device *dev = info->user_ptr[1];
19957bb3 6744 const u8 *ie = NULL, *bssid;
91bf9b26 6745 int ie_len = 0, err;
19957bb3 6746 u16 reason_code;
d5cdfacb 6747 bool local_state_change;
636a5d36 6748
f4a11bb0
JB		 6749 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6750 return -EINVAL;
6751
6752 if (!info->attrs[NL80211_ATTR_MAC])
6753 return -EINVAL;
6754
6755 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6756 return -EINVAL;
6757
4c476991
JB		 6758 if (!rdev->ops->deauth)
6759 return -EOPNOTSUPP;
636a5d36 6760
074ac8df 6761 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6762 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6763 return -EOPNOTSUPP;
eec60b03 6764
19957bb3 6765 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6766
19957bb3
JB		 6767 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6768 if (reason_code == 0) {
f4a11bb0 6769 /* Reason Code 0 is reserved */
4c476991 6770 return -EINVAL;
255e737e 6771 }
636a5d36
JM		 6772
6773 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6774 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6775 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6776 }
6777
d5cdfacb
JM		 6778 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6779
91bf9b26
JB		 6780 wdev_lock(dev->ieee80211_ptr);
6781 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6782 local_state_change);
6783 wdev_unlock(dev->ieee80211_ptr);
6784 return err;
636a5d36
JM		 6785}
6786
6787static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6788{
4c476991
JB		 6789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6790 struct net_device *dev = info->user_ptr[1];
19957bb3 6791 const u8 *ie = NULL, *bssid;
91bf9b26 6792 int ie_len = 0, err;
19957bb3 6793 u16 reason_code;
d5cdfacb 6794 bool local_state_change;
636a5d36 6795
f4a11bb0
JB		 6796 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6797 return -EINVAL;
6798
6799 if (!info->attrs[NL80211_ATTR_MAC])
6800 return -EINVAL;
6801
6802 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6803 return -EINVAL;
6804
4c476991
JB		 6805 if (!rdev->ops->disassoc)
6806 return -EOPNOTSUPP;
636a5d36 6807
074ac8df 6808 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6809 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6810 return -EOPNOTSUPP;
eec60b03 6811
19957bb3 6812 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6813
19957bb3
JB		 6814 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6815 if (reason_code == 0) {
f4a11bb0 6816 /* Reason Code 0 is reserved */
4c476991 6817 return -EINVAL;
255e737e 6818 }
636a5d36
JM		 6819
6820 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6821 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6822 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6823 }
6824
d5cdfacb
JM		 6825 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6826
91bf9b26
JB		 6827 wdev_lock(dev->ieee80211_ptr);
6828 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6829 local_state_change);
6830 wdev_unlock(dev->ieee80211_ptr);
6831 return err;
636a5d36
JM		 6832}
6833
dd5b4cc7
FF		 6834static bool
6835nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6836 int mcast_rate[IEEE80211_NUM_BANDS],
6837 int rateval)
6838{
6839 struct wiphy *wiphy = &rdev->wiphy;
6840 bool found = false;
6841 int band, i;
6842
6843 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6844 struct ieee80211_supported_band *sband;
6845
6846 sband = wiphy->bands[band];
6847 if (!sband)
6848 continue;
6849
6850 for (i = 0; i < sband->n_bitrates; i++) {
6851 if (sband->bitrates[i].bitrate == rateval) {
6852 mcast_rate[band] = i + 1;
6853 found = true;
6854 break;
6855 }
6856 }
6857 }
6858
6859 return found;
6860}
6861
04a773ad
JB		 6862static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6863{
4c476991
JB		 6864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6865 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6866 struct cfg80211_ibss_params ibss;
6867 struct wiphy *wiphy;
fffd0934 6868 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6869 int err;
6870
8e30bc55
JB		 6871 memset(&ibss, 0, sizeof(ibss));
6872
04a773ad
JB		 6873 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6874 return -EINVAL;
6875
683b6d3b 6876 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6877 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6878 return -EINVAL;
6879
8e30bc55
JB		 6880 ibss.beacon_interval = 100;
6881
6882 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6883 ibss.beacon_interval =
6884 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6885 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6886 return -EINVAL;
6887 }
6888
4c476991
JB		 6889 if (!rdev->ops->join_ibss)
6890 return -EOPNOTSUPP;
04a773ad 6891
4c476991
JB		 6892 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6893 return -EOPNOTSUPP;
04a773ad 6894
79c97e97 6895 wiphy = &rdev->wiphy;
04a773ad 6896
39193498 6897 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6898 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6899
6900 if (!is_valid_ether_addr(ibss.bssid))
6901 return -EINVAL;
6902 }
04a773ad
JB		 6903 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6904 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6905
6906 if (info->attrs[NL80211_ATTR_IE]) {
6907 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6908 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6909 }
6910
683b6d3b
JB		 6911 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6912 if (err)
6913 return err;
04a773ad 6914
174e0cd2
IP		 6915 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6916 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6917 return -EINVAL;
6918
2f301ab2 6919 switch (ibss.chandef.width) {
bf372645
SW		 6920 case NL80211_CHAN_WIDTH_5:
6921 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6922 case NL80211_CHAN_WIDTH_20_NOHT:
6923 break;
6924 case NL80211_CHAN_WIDTH_20:
6925 case NL80211_CHAN_WIDTH_40:
6926 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6927 break;
6928 default:
c04d6150 6929 return -EINVAL;
2f301ab2 6930 }
db9c64cf 6931
04a773ad 6932 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6933 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6934
fbd2c8dc
TP		 6935 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6936 u8 *rates =
6937 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6938 int n_rates =
6939 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6940 struct ieee80211_supported_band *sband =
683b6d3b 6941 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6942
34850ab2
JB		 6943 err = ieee80211_get_ratemask(sband, rates, n_rates,
6944 &ibss.basic_rates);
6945 if (err)
6946 return err;
fbd2c8dc 6947 }
dd5b4cc7 6948
803768f5
SW		 6949 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6950 memcpy(&ibss.ht_capa_mask,
6951 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6952 sizeof(ibss.ht_capa_mask));
6953
6954 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6955 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6956 return -EINVAL;
6957 memcpy(&ibss.ht_capa,
6958 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6959 sizeof(ibss.ht_capa));
6960 }
6961
dd5b4cc7
FF		 6962 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6963 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6964 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6965 return -EINVAL;
fbd2c8dc 6966
4c476991 6967 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6968 bool no_ht = false;
6969
4c476991 6970 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6971 info->attrs[NL80211_ATTR_KEYS],
6972 &no_ht);
4c476991
JB		 6973 if (IS_ERR(connkeys))
6974 return PTR_ERR(connkeys);
de7044ee 6975
3d9d1d66
JB		 6976 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6977 no_ht) {
de7044ee
SM		 6978 kfree(connkeys);
6979 return -EINVAL;
6980 }
4c476991 6981 }
04a773ad 6982
267335d6
AQ		 6983 ibss.control_port =
6984 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6985
5336fa88
SW		 6986 ibss.userspace_handles_dfs =
6987 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6988
4c476991 6989 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 6990 if (err)
b47f610b 6991 kzfree(connkeys);
04a773ad
JB		 6992 return err;
6993}
6994
6995static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6996{
4c476991
JB		 6997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6998 struct net_device *dev = info->user_ptr[1];
04a773ad 6999
4c476991
JB		 7000 if (!rdev->ops->leave_ibss)
7001 return -EOPNOTSUPP;
04a773ad 7002
4c476991
JB		 7003 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7004 return -EOPNOTSUPP;
04a773ad 7005
4c476991 7006 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7007}
7008
f4e583c8
AQ		 7009static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7010{
7011 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7012 struct net_device *dev = info->user_ptr[1];
7013 int mcast_rate[IEEE80211_NUM_BANDS];
7014 u32 nla_rate;
7015 int err;
7016
7017 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7018 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7019 return -EOPNOTSUPP;
7020
7021 if (!rdev->ops->set_mcast_rate)
7022 return -EOPNOTSUPP;
7023
7024 memset(mcast_rate, 0, sizeof(mcast_rate));
7025
7026 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7027 return -EINVAL;
7028
7029 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7030 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7031 return -EINVAL;
7032
7033 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7034
7035 return err;
7036}
7037
ad7e718c
JB		 7038static struct sk_buff *
7039__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7040 int approxlen, u32 portid, u32 seq,
7041 enum nl80211_commands cmd,
567ffc35
JB		 7042 enum nl80211_attrs attr,
7043 const struct nl80211_vendor_cmd_info *info,
7044 gfp_t gfp)
ad7e718c
JB		 7045{
7046 struct sk_buff *skb;
7047 void *hdr;
7048 struct nlattr *data;
7049
7050 skb = nlmsg_new(approxlen + 100, gfp);
7051 if (!skb)
7052 return NULL;
7053
7054 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7055 if (!hdr) {
7056 kfree_skb(skb);
7057 return NULL;
7058 }
7059
7060 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7061 goto nla_put_failure;
567ffc35
JB		 7062
7063 if (info) {
7064 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7065 info->vendor_id))
7066 goto nla_put_failure;
7067 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7068 info->subcmd))
7069 goto nla_put_failure;
7070 }
7071
ad7e718c
JB		 7072 data = nla_nest_start(skb, attr);
7073
7074 ((void **)skb->cb)[0] = rdev;
7075 ((void **)skb->cb)[1] = hdr;
7076 ((void **)skb->cb)[2] = data;
7077
7078 return skb;
7079
7080 nla_put_failure:
7081 kfree_skb(skb);
7082 return NULL;
7083}
f4e583c8 7084
e03ad6ea
JB		 7085struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7086 enum nl80211_commands cmd,
7087 enum nl80211_attrs attr,
7088 int vendor_event_idx,
7089 int approxlen, gfp_t gfp)
7090{
f26cbf40 7091 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7092 const struct nl80211_vendor_cmd_info *info;
7093
7094 switch (cmd) {
7095 case NL80211_CMD_TESTMODE:
7096 if (WARN_ON(vendor_event_idx != -1))
7097 return NULL;
7098 info = NULL;
7099 break;
7100 case NL80211_CMD_VENDOR:
7101 if (WARN_ON(vendor_event_idx < 0 ||
7102 vendor_event_idx >= wiphy->n_vendor_events))
7103 return NULL;
7104 info = &wiphy->vendor_events[vendor_event_idx];
7105 break;
7106 default:
7107 WARN_ON(1);
7108 return NULL;
7109 }
7110
7111 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7112 cmd, attr, info, gfp);
7113}
7114EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7115
7116void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7117{
7118 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7119 void *hdr = ((void **)skb->cb)[1];
7120 struct nlattr *data = ((void **)skb->cb)[2];
7121 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7122
bd8c78e7
JB		 7123 /* clear CB data for netlink core to own from now on */
7124 memset(skb->cb, 0, sizeof(skb->cb));
7125
e03ad6ea
JB		 7126 nla_nest_end(skb, data);
7127 genlmsg_end(skb, hdr);
7128
7129 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7130 mcgrp = NL80211_MCGRP_VENDOR;
7131
7132 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7133 mcgrp, gfp);
7134}
7135EXPORT_SYMBOL(__cfg80211_send_event_skb);
7136
aff89a9b 7137#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7138static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7139{
4c476991 7140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7141 struct wireless_dev *wdev =
7142 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7143 int err;
7144
fc73f11f
DS		 7145 if (!rdev->ops->testmode_cmd)
7146 return -EOPNOTSUPP;
7147
7148 if (IS_ERR(wdev)) {
7149 err = PTR_ERR(wdev);
7150 if (err != -EINVAL)
7151 return err;
7152 wdev = NULL;
7153 } else if (wdev->wiphy != &rdev->wiphy) {
7154 return -EINVAL;
7155 }
7156
aff89a9b
JB		 7157 if (!info->attrs[NL80211_ATTR_TESTDATA])
7158 return -EINVAL;
7159
ad7e718c 7160 rdev->cur_cmd_info = info;
fc73f11f 7161 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7162 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7163 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7164 rdev->cur_cmd_info = NULL;
aff89a9b 7165
aff89a9b
JB		 7166 return err;
7167}
7168
71063f0e
WYG		 7169static int nl80211_testmode_dump(struct sk_buff *skb,
7170 struct netlink_callback *cb)
7171{
00918d33 7172 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7173 int err;
7174 long phy_idx;
7175 void *data = NULL;
7176 int data_len = 0;
7177
5fe231e8
JB		 7178 rtnl_lock();
7179
71063f0e
WYG		 7180 if (cb->args[0]) {
7181 /*
7182 * 0 is a valid index, but not valid for args[0],
7183 * so we need to offset by 1.
7184 */
7185 phy_idx = cb->args[0] - 1;
7186 } else {
7187 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7188 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7189 nl80211_policy);
7190 if (err)
5fe231e8 7191 goto out_err;
00918d33 7192
2bd7e35d
JB		 7193 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7194 nl80211_fam.attrbuf);
7195 if (IS_ERR(rdev)) {
5fe231e8
JB		 7196 err = PTR_ERR(rdev);
7197 goto out_err;
00918d33 7198 }
2bd7e35d
JB		 7199 phy_idx = rdev->wiphy_idx;
7200 rdev = NULL;
2bd7e35d 7201
71063f0e
WYG		 7202 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7203 cb->args[1] =
7204 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7205 }
7206
7207 if (cb->args[1]) {
7208 data = nla_data((void *)cb->args[1]);
7209 data_len = nla_len((void *)cb->args[1]);
7210 }
7211
00918d33
JB		 7212 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7213 if (!rdev) {
5fe231e8
JB		 7214 err = -ENOENT;
7215 goto out_err;
71063f0e 7216 }
71063f0e 7217
00918d33 7218 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7219 err = -EOPNOTSUPP;
7220 goto out_err;
7221 }
7222
7223 while (1) {
15e47304 7224 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7225 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7226 NL80211_CMD_TESTMODE);
7227 struct nlattr *tmdata;
7228
cb35fba3
DC		 7229 if (!hdr)
7230 break;
7231
9360ffd1 7232 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7233 genlmsg_cancel(skb, hdr);
7234 break;
7235 }
7236
7237 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7238 if (!tmdata) {
7239 genlmsg_cancel(skb, hdr);
7240 break;
7241 }
e35e4d28 7242 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7243 nla_nest_end(skb, tmdata);
7244
7245 if (err == -ENOBUFS || err == -ENOENT) {
7246 genlmsg_cancel(skb, hdr);
7247 break;
7248 } else if (err) {
7249 genlmsg_cancel(skb, hdr);
7250 goto out_err;
7251 }
7252
7253 genlmsg_end(skb, hdr);
7254 }
7255
7256 err = skb->len;
7257 /* see above */
7258 cb->args[0] = phy_idx + 1;
7259 out_err:
5fe231e8 7260 rtnl_unlock();
71063f0e
WYG		 7261 return err;
7262}
aff89a9b
JB		 7263#endif
7264
b23aa676
SO		 7265static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7266{
4c476991
JB		 7267 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7268 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7269 struct cfg80211_connect_params connect;
7270 struct wiphy *wiphy;
fffd0934 7271 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7272 int err;
7273
7274 memset(&connect, 0, sizeof(connect));
7275
7276 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7277 return -EINVAL;
7278
7279 if (!info->attrs[NL80211_ATTR_SSID] ||
7280 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7281 return -EINVAL;
7282
7283 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7284 connect.auth_type =
7285 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7286 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7287 NL80211_CMD_CONNECT))
b23aa676
SO		 7288 return -EINVAL;
7289 } else
7290 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7291
7292 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7293
c0692b8f 7294 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7295 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7296 if (err)
7297 return err;
b23aa676 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;
b23aa676 7302
79c97e97 7303 wiphy = &rdev->wiphy;
b23aa676 7304
4486ea98
BS		 7305 connect.bg_scan_period = -1;
7306 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7307 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7308 connect.bg_scan_period =
7309 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7310 }
7311
b23aa676
SO		 7312 if (info->attrs[NL80211_ATTR_MAC])
7313 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7314 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7315 connect.bssid_hint =
7316 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7317 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7318 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7319
7320 if (info->attrs[NL80211_ATTR_IE]) {
7321 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7322 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7323 }
7324
cee00a95
JM		 7325 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7326 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7327 if (connect.mfp != NL80211_MFP_REQUIRED &&
7328 connect.mfp != NL80211_MFP_NO)
7329 return -EINVAL;
7330 } else {
7331 connect.mfp = NL80211_MFP_NO;
7332 }
7333
b23aa676 7334 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7335 connect.channel = nl80211_get_valid_chan(
7336 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7337 if (!connect.channel)
1df4a510
JM		 7338 return -EINVAL;
7339 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7340 connect.channel_hint = nl80211_get_valid_chan(
7341 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7342 if (!connect.channel_hint)
4c476991 7343 return -EINVAL;
b23aa676
SO		 7344 }
7345
fffd0934
JB		 7346 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7347 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7348 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7349 if (IS_ERR(connkeys))
7350 return PTR_ERR(connkeys);
fffd0934
JB		 7351 }
7352
7e7c8926
BG		 7353 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7354 connect.flags |= ASSOC_REQ_DISABLE_HT;
7355
7356 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7357 memcpy(&connect.ht_capa_mask,
7358 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7359 sizeof(connect.ht_capa_mask));
7360
7361 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7362 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7363 kzfree(connkeys);
7e7c8926 7364 return -EINVAL;
b4e4f47e 7365 }
7e7c8926
BG		 7366 memcpy(&connect.ht_capa,
7367 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7368 sizeof(connect.ht_capa));
7369 }
7370
ee2aca34
JB		 7371 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7372 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7373
7374 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7375 memcpy(&connect.vht_capa_mask,
7376 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7377 sizeof(connect.vht_capa_mask));
7378
7379 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7380 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7381 kzfree(connkeys);
ee2aca34
JB		 7382 return -EINVAL;
7383 }
7384 memcpy(&connect.vht_capa,
7385 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7386 sizeof(connect.vht_capa));
7387 }
7388
bab5ab7d
AK		 7389 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7390 if (!(rdev->wiphy.features &
7391 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7392 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7393 return -EINVAL;
7394 connect.flags |= ASSOC_REQ_USE_RRM;
7395 }
7396
83739b03
JB		 7397 wdev_lock(dev->ieee80211_ptr);
7398 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7399 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7400 if (err)
b47f610b 7401 kzfree(connkeys);
b23aa676
SO		 7402 return err;
7403}
7404
7405static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7406{
4c476991
JB		 7407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7408 struct net_device *dev = info->user_ptr[1];
b23aa676 7409 u16 reason;
83739b03 7410 int ret;
b23aa676
SO		 7411
7412 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7413 reason = WLAN_REASON_DEAUTH_LEAVING;
7414 else
7415 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7416
7417 if (reason == 0)
7418 return -EINVAL;
7419
074ac8df 7420 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7421 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7422 return -EOPNOTSUPP;
b23aa676 7423
83739b03
JB		 7424 wdev_lock(dev->ieee80211_ptr);
7425 ret = cfg80211_disconnect(rdev, dev, reason, true);
7426 wdev_unlock(dev->ieee80211_ptr);
7427 return ret;
b23aa676
SO		 7428}
7429
463d0183
JB		 7430static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7431{
4c476991 7432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7433 struct net *net;
7434 int err;
7435 u32 pid;
7436
7437 if (!info->attrs[NL80211_ATTR_PID])
7438 return -EINVAL;
7439
7440 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7441
463d0183 7442 net = get_net_ns_by_pid(pid);
4c476991
JB		 7443 if (IS_ERR(net))
7444 return PTR_ERR(net);
463d0183
JB		 7445
7446 err = 0;
7447
7448 /* check if anything to do */
4c476991
JB		 7449 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7450 err = cfg80211_switch_netns(rdev, net);
463d0183 7451
463d0183 7452 put_net(net);
463d0183
JB		 7453 return err;
7454}
7455
67fbb16b
SO		 7456static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7457{
4c476991 7458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7459 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7460 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7461 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7462 struct cfg80211_pmksa pmksa;
7463
7464 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7465
7466 if (!info->attrs[NL80211_ATTR_MAC])
7467 return -EINVAL;
7468
7469 if (!info->attrs[NL80211_ATTR_PMKID])
7470 return -EINVAL;
7471
67fbb16b
SO		 7472 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7473 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7474
074ac8df 7475 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7476 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7477 return -EOPNOTSUPP;
67fbb16b
SO		 7478
7479 switch (info->genlhdr->cmd) {
7480 case NL80211_CMD_SET_PMKSA:
7481 rdev_ops = rdev->ops->set_pmksa;
7482 break;
7483 case NL80211_CMD_DEL_PMKSA:
7484 rdev_ops = rdev->ops->del_pmksa;
7485 break;
7486 default:
7487 WARN_ON(1);
7488 break;
7489 }
7490
4c476991
JB		 7491 if (!rdev_ops)
7492 return -EOPNOTSUPP;
67fbb16b 7493
4c476991 7494 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7495}
7496
7497static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7498{
4c476991
JB		 7499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7500 struct net_device *dev = info->user_ptr[1];
67fbb16b 7501
074ac8df 7502 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7503 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7504 return -EOPNOTSUPP;
67fbb16b 7505
4c476991
JB		 7506 if (!rdev->ops->flush_pmksa)
7507 return -EOPNOTSUPP;
67fbb16b 7508
e35e4d28 7509 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7510}
7511
109086ce
AN		 7512static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7513{
7514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7515 struct net_device *dev = info->user_ptr[1];
7516 u8 action_code, dialog_token;
df942e7b 7517 u32 peer_capability = 0;
109086ce
AN		 7518 u16 status_code;
7519 u8 *peer;
31fa97c5 7520 bool initiator;
109086ce
AN		 7521
7522 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7523 !rdev->ops->tdls_mgmt)
7524 return -EOPNOTSUPP;
7525
7526 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7527 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7528 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7529 !info->attrs[NL80211_ATTR_IE] ||
7530 !info->attrs[NL80211_ATTR_MAC])
7531 return -EINVAL;
7532
7533 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7534 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7535 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7536 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7537 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7538 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7539 peer_capability =
7540 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7541
e35e4d28 7542 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7543 dialog_token, status_code, peer_capability,
31fa97c5 7544 initiator,
e35e4d28
HG		 7545 nla_data(info->attrs[NL80211_ATTR_IE]),
7546 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7547}
7548
7549static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7550{
7551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7552 struct net_device *dev = info->user_ptr[1];
7553 enum nl80211_tdls_operation operation;
7554 u8 *peer;
7555
7556 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7557 !rdev->ops->tdls_oper)
7558 return -EOPNOTSUPP;
7559
7560 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7561 !info->attrs[NL80211_ATTR_MAC])
7562 return -EINVAL;
7563
7564 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7565 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7566
e35e4d28 7567 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7568}
7569
9588bbd5
JM		 7570static int nl80211_remain_on_channel(struct sk_buff *skb,
7571 struct genl_info *info)
7572{
4c476991 7573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7574 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7575 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7576 struct sk_buff *msg;
7577 void *hdr;
7578 u64 cookie;
683b6d3b 7579 u32 duration;
9588bbd5
JM		 7580 int err;
7581
7582 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7583 !info->attrs[NL80211_ATTR_DURATION])
7584 return -EINVAL;
7585
7586 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7587
ebf348fc
JB		 7588 if (!rdev->ops->remain_on_channel ||
7589 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7590 return -EOPNOTSUPP;
7591
9588bbd5 7592 /*
ebf348fc
JB		 7593 * We should be on that channel for at least a minimum amount of
7594 * time (10ms) but no longer than the driver supports.
9588bbd5 7595 */
ebf348fc 7596 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7597 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7598 return -EINVAL;
7599
683b6d3b
JB		 7600 err = nl80211_parse_chandef(rdev, info, &chandef);
7601 if (err)
7602 return err;
9588bbd5
JM		 7603
7604 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7605 if (!msg)
7606 return -ENOMEM;
9588bbd5 7607
15e47304 7608 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7609 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7610 if (!hdr) {
7611 err = -ENOBUFS;
9588bbd5
JM		 7612 goto free_msg;
7613 }
7614
683b6d3b
JB		 7615 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7616 duration, &cookie);
9588bbd5
JM		 7617
7618 if (err)
7619 goto free_msg;
7620
9360ffd1
DM		 7621 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7622 goto nla_put_failure;
9588bbd5
JM		 7623
7624 genlmsg_end(msg, hdr);
4c476991
JB		 7625
7626 return genlmsg_reply(msg, info);
9588bbd5
JM		 7627
7628 nla_put_failure:
7629 err = -ENOBUFS;
7630 free_msg:
7631 nlmsg_free(msg);
9588bbd5
JM		 7632 return err;
7633}
7634
7635static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7636 struct genl_info *info)
7637{
4c476991 7638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7639 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7640 u64 cookie;
9588bbd5
JM		 7641
7642 if (!info->attrs[NL80211_ATTR_COOKIE])
7643 return -EINVAL;
7644
4c476991
JB		 7645 if (!rdev->ops->cancel_remain_on_channel)
7646 return -EOPNOTSUPP;
9588bbd5 7647
9588bbd5
JM		 7648 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7649
e35e4d28 7650 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7651}
7652
13ae75b1
JM		 7653static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7654 u8 *rates, u8 rates_len)
7655{
7656 u8 i;
7657 u32 mask = 0;
7658
7659 for (i = 0; i < rates_len; i++) {
7660 int rate = (rates[i] & 0x7f) * 5;
7661 int ridx;
7662 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7663 struct ieee80211_rate *srate =
7664 &sband->bitrates[ridx];
7665 if (rate == srate->bitrate) {
7666 mask |= 1 << ridx;
7667 break;
7668 }
7669 }
7670 if (ridx == sband->n_bitrates)
7671 return 0; /* rate not found */
7672 }
7673
7674 return mask;
7675}
7676
24db78c0
SW		 7677static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7678 u8 *rates, u8 rates_len,
7679 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7680{
7681 u8 i;
7682
7683 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7684
7685 for (i = 0; i < rates_len; i++) {
7686 int ridx, rbit;
7687
7688 ridx = rates[i] / 8;
7689 rbit = BIT(rates[i] % 8);
7690
7691 /* check validity */
910570b5 7692 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7693 return false;
7694
7695 /* check availability */
7696 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7697 mcs[ridx] |= rbit;
7698 else
7699 return false;
7700 }
7701
7702 return true;
7703}
7704
204e35a9
JD		 7705static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7706{
7707 u16 mcs_mask = 0;
7708
7709 switch (vht_mcs_map) {
7710 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7711 break;
7712 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7713 mcs_mask = 0x00FF;
7714 break;
7715 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7716 mcs_mask = 0x01FF;
7717 break;
7718 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7719 mcs_mask = 0x03FF;
7720 break;
7721 default:
7722 break;
7723 }
7724
7725 return mcs_mask;
7726}
7727
7728static void vht_build_mcs_mask(u16 vht_mcs_map,
7729 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7730{
7731 u8 nss;
7732
7733 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7734 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7735 vht_mcs_map >>= 2;
7736 }
7737}
7738
7739static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7740 struct nl80211_txrate_vht *txrate,
7741 u16 mcs[NL80211_VHT_NSS_MAX])
7742{
7743 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7744 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7745 u8 i;
7746
7747 if (!sband->vht_cap.vht_supported)
7748 return false;
7749
7750 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7751
7752 /* Build vht_mcs_mask from VHT capabilities */
7753 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7754
7755 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7756 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7757 mcs[i] = txrate->mcs[i];
7758 else
7759 return false;
7760 }
7761
7762 return true;
7763}
7764
b54452b0 7765static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7766 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7767 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7768 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7769 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7770 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7771 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7772};
7773
7774static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7775 struct genl_info *info)
7776{
7777 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7779 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7780 int rem, i;
7781 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7782 struct nlattr *tx_rates;
7783 struct ieee80211_supported_band *sband;
204e35a9 7784 u16 vht_tx_mcs_map;
13ae75b1 7785
4c476991
JB		 7786 if (!rdev->ops->set_bitrate_mask)
7787 return -EOPNOTSUPP;
13ae75b1
JM		 7788
7789 memset(&mask, 0, sizeof(mask));
7790 /* Default to all rates enabled */
7791 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7792 sband = rdev->wiphy.bands[i];
7869303b
JD		 7793
7794 if (!sband)
7795 continue;
7796
7797 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7798 memcpy(mask.control[i].ht_mcs,
7869303b 7799 sband->ht_cap.mcs.rx_mask,
d1e33e65 7800 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7801
7802 if (!sband->vht_cap.vht_supported)
7803 continue;
7804
7805 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7806 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7807 }
7808
b9243ab0
JD		 7809 /* if no rates are given set it back to the defaults */
7810 if (!info->attrs[NL80211_ATTR_TX_RATES])
7811 goto out;
7812
13ae75b1
JM		 7813 /*
7814 * The nested attribute uses enum nl80211_band as the index. This maps
7815 * directly to the enum ieee80211_band values used in cfg80211.
7816 */
24db78c0 7817 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7818 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7819 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7820 int err;
7821
4c476991
JB		 7822 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7823 return -EINVAL;
13ae75b1 7824 sband = rdev->wiphy.bands[band];
4c476991
JB		 7825 if (sband == NULL)
7826 return -EINVAL;
ae811e21
JB		 7827 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7828 nla_len(tx_rates), nl80211_txattr_policy);
7829 if (err)
7830 return err;
13ae75b1
JM		 7831 if (tb[NL80211_TXRATE_LEGACY]) {
7832 mask.control[band].legacy = rateset_to_mask(
7833 sband,
7834 nla_data(tb[NL80211_TXRATE_LEGACY]),
7835 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7836 if ((mask.control[band].legacy == 0) &&
7837 nla_len(tb[NL80211_TXRATE_LEGACY]))
7838 return -EINVAL;
24db78c0 7839 }
d1e33e65 7840 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7841 if (!ht_rateset_to_mask(
7842 sband,
d1e33e65
JD		 7843 nla_data(tb[NL80211_TXRATE_HT]),
7844 nla_len(tb[NL80211_TXRATE_HT]),
7845 mask.control[band].ht_mcs))
24db78c0
SW		 7846 return -EINVAL;
7847 }
204e35a9
JD		 7848 if (tb[NL80211_TXRATE_VHT]) {
7849 if (!vht_set_mcs_mask(
7850 sband,
7851 nla_data(tb[NL80211_TXRATE_VHT]),
7852 mask.control[band].vht_mcs))
7853 return -EINVAL;
7854 }
0b9323f6
JD		 7855 if (tb[NL80211_TXRATE_GI]) {
7856 mask.control[band].gi =
7857 nla_get_u8(tb[NL80211_TXRATE_GI]);
7858 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7859 return -EINVAL;
7860 }
24db78c0
SW		 7861
7862 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7863 /* don't allow empty legacy rates if HT or VHT
7864 * are not even supported.
7865 */
7866 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7867 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7868 return -EINVAL;
7869
7870 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7871 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7872 goto out;
7873
7874 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7875 if (mask.control[band].vht_mcs[i])
7876 goto out;
24db78c0
SW		 7877
7878 /* legacy and mcs rates may not be both empty */
204e35a9 7879 return -EINVAL;
13ae75b1
JM		 7880 }
7881 }
7882
b9243ab0 7883out:
e35e4d28 7884 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7885}
7886
2e161f78 7887static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7888{
4c476991 7889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7890 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7891 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7892
7893 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7894 return -EINVAL;
7895
2e161f78
JB		 7896 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7897 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7898
71bbc994
JB		 7899 switch (wdev->iftype) {
7900 case NL80211_IFTYPE_STATION:
7901 case NL80211_IFTYPE_ADHOC:
7902 case NL80211_IFTYPE_P2P_CLIENT:
7903 case NL80211_IFTYPE_AP:
7904 case NL80211_IFTYPE_AP_VLAN:
7905 case NL80211_IFTYPE_MESH_POINT:
7906 case NL80211_IFTYPE_P2P_GO:
98104fde 7907 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7908 break;
7909 default:
4c476991 7910 return -EOPNOTSUPP;
71bbc994 7911 }
026331c4
JM		 7912
7913 /* not much point in registering if we can't reply */
4c476991
JB		 7914 if (!rdev->ops->mgmt_tx)
7915 return -EOPNOTSUPP;
026331c4 7916
15e47304 7917 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7918 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7919 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7920}
7921
2e161f78 7922static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7923{
4c476991 7924 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7925 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7926 struct cfg80211_chan_def chandef;
026331c4 7927 int err;
d64d373f 7928 void *hdr = NULL;
026331c4 7929 u64 cookie;
e247bd90 7930 struct sk_buff *msg = NULL;
b176e629
AO		 7931 struct cfg80211_mgmt_tx_params params = {
7932 .dont_wait_for_ack =
7933 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7934 };
026331c4 7935
683b6d3b 7936 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7937 return -EINVAL;
7938
4c476991
JB		 7939 if (!rdev->ops->mgmt_tx)
7940 return -EOPNOTSUPP;
026331c4 7941
71bbc994 7942 switch (wdev->iftype) {
ea141b75
AQ		 7943 case NL80211_IFTYPE_P2P_DEVICE:
7944 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7945 return -EINVAL;
71bbc994
JB		 7946 case NL80211_IFTYPE_STATION:
7947 case NL80211_IFTYPE_ADHOC:
7948 case NL80211_IFTYPE_P2P_CLIENT:
7949 case NL80211_IFTYPE_AP:
7950 case NL80211_IFTYPE_AP_VLAN:
7951 case NL80211_IFTYPE_MESH_POINT:
7952 case NL80211_IFTYPE_P2P_GO:
7953 break;
7954 default:
4c476991 7955 return -EOPNOTSUPP;
71bbc994 7956 }
026331c4 7957
f7ca38df 7958 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7959 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7960 return -EINVAL;
b176e629 7961 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7962
7963 /*
7964 * We should wait on the channel for at least a minimum amount
7965 * of time (10ms) but no longer than the driver supports.
7966 */
b176e629
AO		 7967 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7968 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7969 return -EINVAL;
7970
f7ca38df
JB		 7971 }
7972
b176e629 7973 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7974
b176e629 7975 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7976 return -EINVAL;
7977
b176e629 7978 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7979
ea141b75
AQ		 7980 /* get the channel if any has been specified, otherwise pass NULL to
7981 * the driver. The latter will use the current one
7982 */
7983 chandef.chan = NULL;
7984 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7985 err = nl80211_parse_chandef(rdev, info, &chandef);
7986 if (err)
7987 return err;
7988 }
7989
b176e629 7990 if (!chandef.chan && params.offchan)
ea141b75 7991 return -EINVAL;
026331c4 7992
34d22ce2
AO		 7993 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7994 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7995
7996 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7997 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7998 int i;
7999
8000 if (len % sizeof(u16))
8001 return -EINVAL;
8002
8003 params.n_csa_offsets = len / sizeof(u16);
8004 params.csa_offsets =
8005 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8006
8007 /* check that all the offsets fit the frame */
8008 for (i = 0; i < params.n_csa_offsets; i++) {
8009 if (params.csa_offsets[i] >= params.len)
8010 return -EINVAL;
8011 }
8012 }
8013
b176e629 8014 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8015 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8016 if (!msg)
8017 return -ENOMEM;
026331c4 8018
15e47304 8019 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8020 NL80211_CMD_FRAME);
cb35fba3
DC		 8021 if (!hdr) {
8022 err = -ENOBUFS;
e247bd90
JB		 8023 goto free_msg;
8024 }
026331c4 8025 }
e247bd90 8026
b176e629
AO		 8027 params.chan = chandef.chan;
8028 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8029 if (err)
8030 goto free_msg;
8031
e247bd90 8032 if (msg) {
9360ffd1
DM		 8033 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8034 goto nla_put_failure;
026331c4 8035
e247bd90
JB		 8036 genlmsg_end(msg, hdr);
8037 return genlmsg_reply(msg, info);
8038 }
8039
8040 return 0;
026331c4
JM		 8041
8042 nla_put_failure:
8043 err = -ENOBUFS;
8044 free_msg:
8045 nlmsg_free(msg);
026331c4
JM		 8046 return err;
8047}
8048
f7ca38df
JB		 8049static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8050{
8051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8052 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8053 u64 cookie;
8054
8055 if (!info->attrs[NL80211_ATTR_COOKIE])
8056 return -EINVAL;
8057
8058 if (!rdev->ops->mgmt_tx_cancel_wait)
8059 return -EOPNOTSUPP;
8060
71bbc994
JB		 8061 switch (wdev->iftype) {
8062 case NL80211_IFTYPE_STATION:
8063 case NL80211_IFTYPE_ADHOC:
8064 case NL80211_IFTYPE_P2P_CLIENT:
8065 case NL80211_IFTYPE_AP:
8066 case NL80211_IFTYPE_AP_VLAN:
8067 case NL80211_IFTYPE_P2P_GO:
98104fde 8068 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8069 break;
8070 default:
f7ca38df 8071 return -EOPNOTSUPP;
71bbc994 8072 }
f7ca38df
JB		 8073
8074 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8075
e35e4d28 8076 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8077}
8078
ffb9eb3d
KV		 8079static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8080{
4c476991 8081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8082 struct wireless_dev *wdev;
4c476991 8083 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8084 u8 ps_state;
8085 bool state;
8086 int err;
8087
4c476991
JB		 8088 if (!info->attrs[NL80211_ATTR_PS_STATE])
8089 return -EINVAL;
ffb9eb3d
KV		 8090
8091 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8092
4c476991
JB		 8093 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8094 return -EINVAL;
ffb9eb3d
KV		 8095
8096 wdev = dev->ieee80211_ptr;
8097
4c476991
JB		 8098 if (!rdev->ops->set_power_mgmt)
8099 return -EOPNOTSUPP;
ffb9eb3d
KV		 8100
8101 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8102
8103 if (state == wdev->ps)
4c476991 8104 return 0;
ffb9eb3d 8105
e35e4d28 8106 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8107 if (!err)
8108 wdev->ps = state;
ffb9eb3d
KV		 8109 return err;
8110}
8111
8112static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8113{
4c476991 8114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8115 enum nl80211_ps_state ps_state;
8116 struct wireless_dev *wdev;
4c476991 8117 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8118 struct sk_buff *msg;
8119 void *hdr;
8120 int err;
8121
ffb9eb3d
KV		 8122 wdev = dev->ieee80211_ptr;
8123
4c476991
JB		 8124 if (!rdev->ops->set_power_mgmt)
8125 return -EOPNOTSUPP;
ffb9eb3d
KV		 8126
8127 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8128 if (!msg)
8129 return -ENOMEM;
ffb9eb3d 8130
15e47304 8131 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8132 NL80211_CMD_GET_POWER_SAVE);
8133 if (!hdr) {
4c476991 8134 err = -ENOBUFS;
ffb9eb3d
KV		 8135 goto free_msg;
8136 }
8137
8138 if (wdev->ps)
8139 ps_state = NL80211_PS_ENABLED;
8140 else
8141 ps_state = NL80211_PS_DISABLED;
8142
9360ffd1
DM		 8143 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8144 goto nla_put_failure;
ffb9eb3d
KV		 8145
8146 genlmsg_end(msg, hdr);
4c476991 8147 return genlmsg_reply(msg, info);
ffb9eb3d 8148
4c476991 8149 nla_put_failure:
ffb9eb3d 8150 err = -ENOBUFS;
4c476991 8151 free_msg:
ffb9eb3d 8152 nlmsg_free(msg);
ffb9eb3d
KV		 8153 return err;
8154}
8155
94e860f1
JB		 8156static const struct nla_policy
8157nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8158 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8159 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8160 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8161 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8162 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8163 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8164};
8165
84f10708 8166static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8167 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8168{
8169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8170 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8171 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8172
d9d8b019 8173 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8174 return -EINVAL;
8175
84f10708
TP		 8176 if (!rdev->ops->set_cqm_txe_config)
8177 return -EOPNOTSUPP;
8178
8179 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8180 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8181 return -EOPNOTSUPP;
8182
e35e4d28 8183 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8184}
8185
d6dc1a38
JO		 8186static int nl80211_set_cqm_rssi(struct genl_info *info,
8187 s32 threshold, u32 hysteresis)
8188{
4c476991 8189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8190 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8191 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8192
8193 if (threshold > 0)
8194 return -EINVAL;
8195
1da5fcc8
JB		 8196 /* disabling - hysteresis should also be zero then */
8197 if (threshold == 0)
8198 hysteresis = 0;
d6dc1a38 8199
4c476991
JB		 8200 if (!rdev->ops->set_cqm_rssi_config)
8201 return -EOPNOTSUPP;
d6dc1a38 8202
074ac8df 8203 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8204 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8205 return -EOPNOTSUPP;
d6dc1a38 8206
e35e4d28 8207 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8208}
8209
8210static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8211{
8212 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8213 struct nlattr *cqm;
8214 int err;
8215
8216 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8217 if (!cqm)
8218 return -EINVAL;
d6dc1a38
JO		 8219
8220 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8221 nl80211_attr_cqm_policy);
8222 if (err)
1da5fcc8 8223 return err;
d6dc1a38
JO		 8224
8225 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8226 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8227 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8228 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8229
1da5fcc8
JB		 8230 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8231 }
8232
8233 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8234 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8235 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8236 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8237 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8238 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8239
8240 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8241 }
8242
8243 return -EINVAL;
d6dc1a38
JO		 8244}
8245
29cbe68c
JB		 8246static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8247{
8248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8249 struct net_device *dev = info->user_ptr[1];
8250 struct mesh_config cfg;
c80d545d 8251 struct mesh_setup setup;
29cbe68c
JB		 8252 int err;
8253
8254 /* start with default */
8255 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8256 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8257
24bdd9f4 8258 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8259 /* and parse parameters if given */
24bdd9f4 8260 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8261 if (err)
8262 return err;
8263 }
8264
8265 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8266 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8267 return -EINVAL;
8268
c80d545d
JC		 8269 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8270 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8271
4bb62344
CYY		 8272 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8273 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8274 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8275 return -EINVAL;
8276
9bdbf04d
MP		 8277 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8278 setup.beacon_interval =
8279 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8280 if (setup.beacon_interval < 10 ||
8281 setup.beacon_interval > 10000)
8282 return -EINVAL;
8283 }
8284
8285 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8286 setup.dtim_period =
8287 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8288 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8289 return -EINVAL;
8290 }
8291
c80d545d
JC		 8292 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8293 /* parse additional setup parameters if given */
8294 err = nl80211_parse_mesh_setup(info, &setup);
8295 if (err)
8296 return err;
8297 }
8298
d37bb18a
TP		 8299 if (setup.user_mpm)
8300 cfg.auto_open_plinks = false;
8301
cc1d2806 8302 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8303 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8304 if (err)
8305 return err;
cc1d2806
JB		 8306 } else {
8307 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8308 setup.chandef.chan = NULL;
cc1d2806
JB		 8309 }
8310
ffb3cf30
AN		 8311 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8312 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8313 int n_rates =
8314 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8315 struct ieee80211_supported_band *sband;
8316
8317 if (!setup.chandef.chan)
8318 return -EINVAL;
8319
8320 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8321
8322 err = ieee80211_get_ratemask(sband, rates, n_rates,
8323 &setup.basic_rates);
8324 if (err)
8325 return err;
8326 }
8327
c80d545d 8328 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8329}
8330
8331static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8332{
8333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8334 struct net_device *dev = info->user_ptr[1];
8335
8336 return cfg80211_leave_mesh(rdev, dev);
8337}
8338
dfb89c56 8339#ifdef CONFIG_PM
bb92d199
AK		 8340static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8341 struct cfg80211_registered_device *rdev)
8342{
6abb9cb9 8343 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8344 struct nlattr *nl_pats, *nl_pat;
8345 int i, pat_len;
8346
6abb9cb9 8347 if (!wowlan->n_patterns)
bb92d199
AK		 8348 return 0;
8349
8350 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8351 if (!nl_pats)
8352 return -ENOBUFS;
8353
6abb9cb9 8354 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8355 nl_pat = nla_nest_start(msg, i + 1);
8356 if (!nl_pat)
8357 return -ENOBUFS;
6abb9cb9 8358 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8359 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8360 wowlan->patterns[i].mask) ||
50ac6607
AK		 8361 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8362 wowlan->patterns[i].pattern) ||
8363 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8364 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8365 return -ENOBUFS;
8366 nla_nest_end(msg, nl_pat);
8367 }
8368 nla_nest_end(msg, nl_pats);
8369
8370 return 0;
8371}
8372
2a0e047e
JB		 8373static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8374 struct cfg80211_wowlan_tcp *tcp)
8375{
8376 struct nlattr *nl_tcp;
8377
8378 if (!tcp)
8379 return 0;
8380
8381 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8382 if (!nl_tcp)
8383 return -ENOBUFS;
8384
8385 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8386 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8387 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8388 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8389 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8390 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8391 tcp->payload_len, tcp->payload) ||
8392 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8393 tcp->data_interval) ||
8394 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8395 tcp->wake_len, tcp->wake_data) ||
8396 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8397 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8398 return -ENOBUFS;
8399
8400 if (tcp->payload_seq.len &&
8401 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8402 sizeof(tcp->payload_seq), &tcp->payload_seq))
8403 return -ENOBUFS;
8404
8405 if (tcp->payload_tok.len &&
8406 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8407 sizeof(tcp->payload_tok) + tcp->tokens_size,
8408 &tcp->payload_tok))
8409 return -ENOBUFS;
8410
e248ad30
JB		 8411 nla_nest_end(msg, nl_tcp);
8412
2a0e047e
JB		 8413 return 0;
8414}
8415
ff1b6e69
JB		 8416static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8417{
8418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8419 struct sk_buff *msg;
8420 void *hdr;
2a0e047e 8421 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8422
964dc9e2 8423 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8424 return -EOPNOTSUPP;
8425
6abb9cb9 8426 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8427 /* adjust size to have room for all the data */
6abb9cb9
JB		 8428 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8429 rdev->wiphy.wowlan_config->tcp->payload_len +
8430 rdev->wiphy.wowlan_config->tcp->wake_len +
8431 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8432 }
8433
8434 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8435 if (!msg)
8436 return -ENOMEM;
8437
15e47304 8438 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8439 NL80211_CMD_GET_WOWLAN);
8440 if (!hdr)
8441 goto nla_put_failure;
8442
6abb9cb9 8443 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8444 struct nlattr *nl_wowlan;
8445
8446 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8447 if (!nl_wowlan)
8448 goto nla_put_failure;
8449
6abb9cb9 8450 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8451 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8452 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8453 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8454 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8455 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8456 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8457 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8458 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8459 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8460 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8461 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8462 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8463 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8464 goto nla_put_failure;
2a0e047e 8465
bb92d199
AK		 8466 if (nl80211_send_wowlan_patterns(msg, rdev))
8467 goto nla_put_failure;
2a0e047e 8468
6abb9cb9
JB		 8469 if (nl80211_send_wowlan_tcp(msg,
8470 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8471 goto nla_put_failure;
8472
ff1b6e69
JB		 8473 nla_nest_end(msg, nl_wowlan);
8474 }
8475
8476 genlmsg_end(msg, hdr);
8477 return genlmsg_reply(msg, info);
8478
8479nla_put_failure:
8480 nlmsg_free(msg);
8481 return -ENOBUFS;
8482}
8483
2a0e047e
JB		 8484static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8485 struct nlattr *attr,
8486 struct cfg80211_wowlan *trig)
8487{
8488 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8489 struct cfg80211_wowlan_tcp *cfg;
8490 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8491 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8492 u32 size;
8493 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8494 int err, port;
8495
964dc9e2 8496 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8497 return -EINVAL;
8498
8499 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8500 nla_data(attr), nla_len(attr),
8501 nl80211_wowlan_tcp_policy);
8502 if (err)
8503 return err;
8504
8505 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8506 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8507 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8508 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8509 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8510 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8511 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8512 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8513 return -EINVAL;
8514
8515 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8516 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8517 return -EINVAL;
8518
8519 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8520 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8521 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8522 return -EINVAL;
8523
8524 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8525 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8526 return -EINVAL;
8527
8528 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8529 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8530 return -EINVAL;
8531
8532 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8533 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8534
8535 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8536 tokens_size = tokln - sizeof(*tok);
8537
8538 if (!tok->len || tokens_size % tok->len)
8539 return -EINVAL;
964dc9e2 8540 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8541 return -EINVAL;
964dc9e2 8542 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8543 return -EINVAL;
964dc9e2 8544 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8545 return -EINVAL;
964dc9e2 8546 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8547 return -EINVAL;
8548 if (tok->offset + tok->len > data_size)
8549 return -EINVAL;
8550 }
8551
8552 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8553 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8554 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8555 return -EINVAL;
8556 if (seq->len == 0 || seq->len > 4)
8557 return -EINVAL;
8558 if (seq->len + seq->offset > data_size)
8559 return -EINVAL;
8560 }
8561
8562 size = sizeof(*cfg);
8563 size += data_size;
8564 size += wake_size + wake_mask_size;
8565 size += tokens_size;
8566
8567 cfg = kzalloc(size, GFP_KERNEL);
8568 if (!cfg)
8569 return -ENOMEM;
8570 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8571 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8572 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8573 ETH_ALEN);
8574 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8575 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8576 else
8577 port = 0;
8578#ifdef CONFIG_INET
8579 /* allocate a socket and port for it and use it */
8580 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8581 IPPROTO_TCP, &cfg->sock, 1);
8582 if (err) {
8583 kfree(cfg);
8584 return err;
8585 }
8586 if (inet_csk_get_port(cfg->sock->sk, port)) {
8587 sock_release(cfg->sock);
8588 kfree(cfg);
8589 return -EADDRINUSE;
8590 }
8591 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8592#else
8593 if (!port) {
8594 kfree(cfg);
8595 return -EINVAL;
8596 }
8597 cfg->src_port = port;
8598#endif
8599
8600 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8601 cfg->payload_len = data_size;
8602 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8603 memcpy((void *)cfg->payload,
8604 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8605 data_size);
8606 if (seq)
8607 cfg->payload_seq = *seq;
8608 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8609 cfg->wake_len = wake_size;
8610 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8611 memcpy((void *)cfg->wake_data,
8612 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8613 wake_size);
8614 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8615 data_size + wake_size;
8616 memcpy((void *)cfg->wake_mask,
8617 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8618 wake_mask_size);
8619 if (tok) {
8620 cfg->tokens_size = tokens_size;
8621 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8622 }
8623
8624 trig->tcp = cfg;
8625
8626 return 0;
8627}
8628
ff1b6e69
JB		 8629static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8630{
8631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8632 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8633 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8634 struct cfg80211_wowlan *ntrig;
964dc9e2 8635 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8636 int err, i;
6abb9cb9 8637 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8638
964dc9e2 8639 if (!wowlan)
ff1b6e69
JB		 8640 return -EOPNOTSUPP;
8641
ae33bd81
JB		 8642 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8643 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8644 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8645 goto set_wakeup;
8646 }
ff1b6e69
JB		 8647
8648 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8649 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8650 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8651 nl80211_wowlan_policy);
8652 if (err)
8653 return err;
8654
8655 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8656 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8657 return -EINVAL;
8658 new_triggers.any = true;
8659 }
8660
8661 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8662 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8663 return -EINVAL;
8664 new_triggers.disconnect = true;
8665 }
8666
8667 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8668 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8669 return -EINVAL;
8670 new_triggers.magic_pkt = true;
8671 }
8672
77dbbb13
JB		 8673 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8674 return -EINVAL;
8675
8676 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8677 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8678 return -EINVAL;
8679 new_triggers.gtk_rekey_failure = true;
8680 }
8681
8682 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8683 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8684 return -EINVAL;
8685 new_triggers.eap_identity_req = true;
8686 }
8687
8688 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8689 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8690 return -EINVAL;
8691 new_triggers.four_way_handshake = true;
8692 }
8693
8694 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8695 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8696 return -EINVAL;
8697 new_triggers.rfkill_release = true;
8698 }
8699
ff1b6e69
JB		 8700 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8701 struct nlattr *pat;
8702 int n_patterns = 0;
bb92d199 8703 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8704 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8705
8706 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8707 rem)
8708 n_patterns++;
8709 if (n_patterns > wowlan->n_patterns)
8710 return -EINVAL;
8711
8712 new_triggers.patterns = kcalloc(n_patterns,
8713 sizeof(new_triggers.patterns[0]),
8714 GFP_KERNEL);
8715 if (!new_triggers.patterns)
8716 return -ENOMEM;
8717
8718 new_triggers.n_patterns = n_patterns;
8719 i = 0;
8720
8721 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8722 rem) {
922bd80f
JB		 8723 u8 *mask_pat;
8724
50ac6607
AK		 8725 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8726 nla_len(pat), NULL);
ff1b6e69 8727 err = -EINVAL;
50ac6607
AK		 8728 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8729 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8730 goto error;
50ac6607 8731 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8732 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8733 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8734 goto error;
8735 if (pat_len > wowlan->pattern_max_len ||
8736 pat_len < wowlan->pattern_min_len)
8737 goto error;
8738
50ac6607 8739 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8740 pkt_offset = 0;
8741 else
8742 pkt_offset = nla_get_u32(
50ac6607 8743 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8744 if (pkt_offset > wowlan->max_pkt_offset)
8745 goto error;
8746 new_triggers.patterns[i].pkt_offset = pkt_offset;
8747
922bd80f
JB		 8748 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8749 if (!mask_pat) {
ff1b6e69
JB		 8750 err = -ENOMEM;
8751 goto error;
8752 }
922bd80f
JB		 8753 new_triggers.patterns[i].mask = mask_pat;
8754 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8755 mask_len);
922bd80f
JB		 8756 mask_pat += mask_len;
8757 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8758 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8759 memcpy(mask_pat,
50ac6607 8760 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8761 pat_len);
8762 i++;
8763 }
8764 }
8765
2a0e047e
JB		 8766 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8767 err = nl80211_parse_wowlan_tcp(
8768 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8769 &new_triggers);
8770 if (err)
8771 goto error;
8772 }
8773
ae33bd81
JB		 8774 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8775 if (!ntrig) {
8776 err = -ENOMEM;
8777 goto error;
ff1b6e69 8778 }
ae33bd81 8779 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8780 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8781
ae33bd81 8782 set_wakeup:
6abb9cb9
JB		 8783 if (rdev->ops->set_wakeup &&
8784 prev_enabled != !!rdev->wiphy.wowlan_config)
8785 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8786
ff1b6e69
JB		 8787 return 0;
8788 error:
8789 for (i = 0; i < new_triggers.n_patterns; i++)
8790 kfree(new_triggers.patterns[i].mask);
8791 kfree(new_triggers.patterns);
2a0e047e
JB		 8792 if (new_triggers.tcp && new_triggers.tcp->sock)
8793 sock_release(new_triggers.tcp->sock);
8794 kfree(new_triggers.tcp);
ff1b6e69
JB		 8795 return err;
8796}
dfb89c56 8797#endif
ff1b6e69 8798
be29b99a
AK		 8799static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8800 struct cfg80211_registered_device *rdev)
8801{
8802 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8803 int i, j, pat_len;
8804 struct cfg80211_coalesce_rules *rule;
8805
8806 if (!rdev->coalesce->n_rules)
8807 return 0;
8808
8809 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8810 if (!nl_rules)
8811 return -ENOBUFS;
8812
8813 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8814 nl_rule = nla_nest_start(msg, i + 1);
8815 if (!nl_rule)
8816 return -ENOBUFS;
8817
8818 rule = &rdev->coalesce->rules[i];
8819 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8820 rule->delay))
8821 return -ENOBUFS;
8822
8823 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8824 rule->condition))
8825 return -ENOBUFS;
8826
8827 nl_pats = nla_nest_start(msg,
8828 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8829 if (!nl_pats)
8830 return -ENOBUFS;
8831
8832 for (j = 0; j < rule->n_patterns; j++) {
8833 nl_pat = nla_nest_start(msg, j + 1);
8834 if (!nl_pat)
8835 return -ENOBUFS;
8836 pat_len = rule->patterns[j].pattern_len;
8837 if (nla_put(msg, NL80211_PKTPAT_MASK,
8838 DIV_ROUND_UP(pat_len, 8),
8839 rule->patterns[j].mask) ||
8840 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8841 rule->patterns[j].pattern) ||
8842 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8843 rule->patterns[j].pkt_offset))
8844 return -ENOBUFS;
8845 nla_nest_end(msg, nl_pat);
8846 }
8847 nla_nest_end(msg, nl_pats);
8848 nla_nest_end(msg, nl_rule);
8849 }
8850 nla_nest_end(msg, nl_rules);
8851
8852 return 0;
8853}
8854
8855static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8856{
8857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8858 struct sk_buff *msg;
8859 void *hdr;
8860
8861 if (!rdev->wiphy.coalesce)
8862 return -EOPNOTSUPP;
8863
8864 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8865 if (!msg)
8866 return -ENOMEM;
8867
8868 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8869 NL80211_CMD_GET_COALESCE);
8870 if (!hdr)
8871 goto nla_put_failure;
8872
8873 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8874 goto nla_put_failure;
8875
8876 genlmsg_end(msg, hdr);
8877 return genlmsg_reply(msg, info);
8878
8879nla_put_failure:
8880 nlmsg_free(msg);
8881 return -ENOBUFS;
8882}
8883
8884void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8885{
8886 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8887 int i, j;
8888 struct cfg80211_coalesce_rules *rule;
8889
8890 if (!coalesce)
8891 return;
8892
8893 for (i = 0; i < coalesce->n_rules; i++) {
8894 rule = &coalesce->rules[i];
8895 for (j = 0; j < rule->n_patterns; j++)
8896 kfree(rule->patterns[j].mask);
8897 kfree(rule->patterns);
8898 }
8899 kfree(coalesce->rules);
8900 kfree(coalesce);
8901 rdev->coalesce = NULL;
8902}
8903
8904static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8905 struct nlattr *rule,
8906 struct cfg80211_coalesce_rules *new_rule)
8907{
8908 int err, i;
8909 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8910 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8911 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8912 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8913
8914 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8915 nla_len(rule), nl80211_coalesce_policy);
8916 if (err)
8917 return err;
8918
8919 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8920 new_rule->delay =
8921 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8922 if (new_rule->delay > coalesce->max_delay)
8923 return -EINVAL;
8924
8925 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8926 new_rule->condition =
8927 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8928 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8929 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8930 return -EINVAL;
8931
8932 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8933 return -EINVAL;
8934
8935 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8936 rem)
8937 n_patterns++;
8938 if (n_patterns > coalesce->n_patterns)
8939 return -EINVAL;
8940
8941 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8942 GFP_KERNEL);
8943 if (!new_rule->patterns)
8944 return -ENOMEM;
8945
8946 new_rule->n_patterns = n_patterns;
8947 i = 0;
8948
8949 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8950 rem) {
922bd80f
JB		 8951 u8 *mask_pat;
8952
be29b99a
AK		 8953 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8954 nla_len(pat), NULL);
8955 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8956 !pat_tb[NL80211_PKTPAT_PATTERN])
8957 return -EINVAL;
8958 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8959 mask_len = DIV_ROUND_UP(pat_len, 8);
8960 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8961 return -EINVAL;
8962 if (pat_len > coalesce->pattern_max_len ||
8963 pat_len < coalesce->pattern_min_len)
8964 return -EINVAL;
8965
8966 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8967 pkt_offset = 0;
8968 else
8969 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8970 if (pkt_offset > coalesce->max_pkt_offset)
8971 return -EINVAL;
8972 new_rule->patterns[i].pkt_offset = pkt_offset;
8973
922bd80f
JB		 8974 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8975 if (!mask_pat)
be29b99a 8976 return -ENOMEM;
922bd80f
JB		 8977
8978 new_rule->patterns[i].mask = mask_pat;
8979 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8980 mask_len);
8981
8982 mask_pat += mask_len;
8983 new_rule->patterns[i].pattern = mask_pat;
be29b99a 8984 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 8985 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8986 pat_len);
be29b99a
AK		 8987 i++;
8988 }
8989
8990 return 0;
8991}
8992
8993static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8994{
8995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8996 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8997 struct cfg80211_coalesce new_coalesce = {};
8998 struct cfg80211_coalesce *n_coalesce;
8999 int err, rem_rule, n_rules = 0, i, j;
9000 struct nlattr *rule;
9001 struct cfg80211_coalesce_rules *tmp_rule;
9002
9003 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9004 return -EOPNOTSUPP;
9005
9006 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9007 cfg80211_rdev_free_coalesce(rdev);
9008 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9009 return 0;
9010 }
9011
9012 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9013 rem_rule)
9014 n_rules++;
9015 if (n_rules > coalesce->n_rules)
9016 return -EINVAL;
9017
9018 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9019 GFP_KERNEL);
9020 if (!new_coalesce.rules)
9021 return -ENOMEM;
9022
9023 new_coalesce.n_rules = n_rules;
9024 i = 0;
9025
9026 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9027 rem_rule) {
9028 err = nl80211_parse_coalesce_rule(rdev, rule,
9029 &new_coalesce.rules[i]);
9030 if (err)
9031 goto error;
9032
9033 i++;
9034 }
9035
9036 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9037 if (err)
9038 goto error;
9039
9040 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9041 if (!n_coalesce) {
9042 err = -ENOMEM;
9043 goto error;
9044 }
9045 cfg80211_rdev_free_coalesce(rdev);
9046 rdev->coalesce = n_coalesce;
9047
9048 return 0;
9049error:
9050 for (i = 0; i < new_coalesce.n_rules; i++) {
9051 tmp_rule = &new_coalesce.rules[i];
9052 for (j = 0; j < tmp_rule->n_patterns; j++)
9053 kfree(tmp_rule->patterns[j].mask);
9054 kfree(tmp_rule->patterns);
9055 }
9056 kfree(new_coalesce.rules);
9057
9058 return err;
9059}
9060
e5497d76
JB		 9061static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9062{
9063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9064 struct net_device *dev = info->user_ptr[1];
9065 struct wireless_dev *wdev = dev->ieee80211_ptr;
9066 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9067 struct cfg80211_gtk_rekey_data rekey_data;
9068 int err;
9069
9070 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9071 return -EINVAL;
9072
9073 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9074 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9075 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9076 nl80211_rekey_policy);
9077 if (err)
9078 return err;
9079
9080 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9081 return -ERANGE;
9082 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9083 return -ERANGE;
9084 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9085 return -ERANGE;
9086
78f686ca
JB		 9087 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9088 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9089 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9090
9091 wdev_lock(wdev);
9092 if (!wdev->current_bss) {
9093 err = -ENOTCONN;
9094 goto out;
9095 }
9096
9097 if (!rdev->ops->set_rekey_data) {
9098 err = -EOPNOTSUPP;
9099 goto out;
9100 }
9101
e35e4d28 9102 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9103 out:
9104 wdev_unlock(wdev);
9105 return err;
9106}
9107
28946da7
JB		 9108static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9109 struct genl_info *info)
9110{
9111 struct net_device *dev = info->user_ptr[1];
9112 struct wireless_dev *wdev = dev->ieee80211_ptr;
9113
9114 if (wdev->iftype != NL80211_IFTYPE_AP &&
9115 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9116 return -EINVAL;
9117
15e47304 9118 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9119 return -EBUSY;
9120
15e47304 9121 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9122 return 0;
9123}
9124
7f6cf311
JB		 9125static int nl80211_probe_client(struct sk_buff *skb,
9126 struct genl_info *info)
9127{
9128 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9129 struct net_device *dev = info->user_ptr[1];
9130 struct wireless_dev *wdev = dev->ieee80211_ptr;
9131 struct sk_buff *msg;
9132 void *hdr;
9133 const u8 *addr;
9134 u64 cookie;
9135 int err;
9136
9137 if (wdev->iftype != NL80211_IFTYPE_AP &&
9138 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9139 return -EOPNOTSUPP;
9140
9141 if (!info->attrs[NL80211_ATTR_MAC])
9142 return -EINVAL;
9143
9144 if (!rdev->ops->probe_client)
9145 return -EOPNOTSUPP;
9146
9147 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9148 if (!msg)
9149 return -ENOMEM;
9150
15e47304 9151 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9152 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9153 if (!hdr) {
9154 err = -ENOBUFS;
7f6cf311
JB		 9155 goto free_msg;
9156 }
9157
9158 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9159
e35e4d28 9160 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9161 if (err)
9162 goto free_msg;
9163
9360ffd1
DM		 9164 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9165 goto nla_put_failure;
7f6cf311
JB		 9166
9167 genlmsg_end(msg, hdr);
9168
9169 return genlmsg_reply(msg, info);
9170
9171 nla_put_failure:
9172 err = -ENOBUFS;
9173 free_msg:
9174 nlmsg_free(msg);
9175 return err;
9176}
9177
5e760230
JB		 9178static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9179{
9180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9181 struct cfg80211_beacon_registration *reg, *nreg;
9182 int rv;
5e760230
JB		 9183
9184 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9185 return -EOPNOTSUPP;
9186
37c73b5f
BG		 9187 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9188 if (!nreg)
9189 return -ENOMEM;
9190
9191 /* First, check if already registered. */
9192 spin_lock_bh(&rdev->beacon_registrations_lock);
9193 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9194 if (reg->nlportid == info->snd_portid) {
9195 rv = -EALREADY;
9196 goto out_err;
9197 }
9198 }
9199 /* Add it to the list */
9200 nreg->nlportid = info->snd_portid;
9201 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9202
37c73b5f 9203 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9204
9205 return 0;
37c73b5f
BG		 9206out_err:
9207 spin_unlock_bh(&rdev->beacon_registrations_lock);
9208 kfree(nreg);
9209 return rv;
5e760230
JB		 9210}
9211
98104fde
JB		 9212static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9213{
9214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9215 struct wireless_dev *wdev = info->user_ptr[1];
9216 int err;
9217
9218 if (!rdev->ops->start_p2p_device)
9219 return -EOPNOTSUPP;
9220
9221 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9222 return -EOPNOTSUPP;
9223
9224 if (wdev->p2p_started)
9225 return 0;
9226
b6a55015
LC		 9227 if (rfkill_blocked(rdev->rfkill))
9228 return -ERFKILL;
98104fde 9229
eeb126e9 9230 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9231 if (err)
9232 return err;
9233
9234 wdev->p2p_started = true;
98104fde 9235 rdev->opencount++;
98104fde
JB		 9236
9237 return 0;
9238}
9239
9240static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9241{
9242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9243 struct wireless_dev *wdev = info->user_ptr[1];
9244
9245 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9246 return -EOPNOTSUPP;
9247
9248 if (!rdev->ops->stop_p2p_device)
9249 return -EOPNOTSUPP;
9250
f9f47529 9251 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9252
9253 return 0;
9254}
9255
3713b4e3
JB		 9256static int nl80211_get_protocol_features(struct sk_buff *skb,
9257 struct genl_info *info)
9258{
9259 void *hdr;
9260 struct sk_buff *msg;
9261
9262 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9263 if (!msg)
9264 return -ENOMEM;
9265
9266 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9267 NL80211_CMD_GET_PROTOCOL_FEATURES);
9268 if (!hdr)
9269 goto nla_put_failure;
9270
9271 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9272 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9273 goto nla_put_failure;
9274
9275 genlmsg_end(msg, hdr);
9276 return genlmsg_reply(msg, info);
9277
9278 nla_put_failure:
9279 kfree_skb(msg);
9280 return -ENOBUFS;
9281}
9282
355199e0
JM		 9283static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9284{
9285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9286 struct cfg80211_update_ft_ies_params ft_params;
9287 struct net_device *dev = info->user_ptr[1];
9288
9289 if (!rdev->ops->update_ft_ies)
9290 return -EOPNOTSUPP;
9291
9292 if (!info->attrs[NL80211_ATTR_MDID] ||
9293 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9294 return -EINVAL;
9295
9296 memset(&ft_params, 0, sizeof(ft_params));
9297 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9298 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9299 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9300
9301 return rdev_update_ft_ies(rdev, dev, &ft_params);
9302}
9303
5de17984
AS		 9304static int nl80211_crit_protocol_start(struct sk_buff *skb,
9305 struct genl_info *info)
9306{
9307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9308 struct wireless_dev *wdev = info->user_ptr[1];
9309 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9310 u16 duration;
9311 int ret;
9312
9313 if (!rdev->ops->crit_proto_start)
9314 return -EOPNOTSUPP;
9315
9316 if (WARN_ON(!rdev->ops->crit_proto_stop))
9317 return -EINVAL;
9318
9319 if (rdev->crit_proto_nlportid)
9320 return -EBUSY;
9321
9322 /* determine protocol if provided */
9323 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9324 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9325
9326 if (proto >= NUM_NL80211_CRIT_PROTO)
9327 return -EINVAL;
9328
9329 /* timeout must be provided */
9330 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9331 return -EINVAL;
9332
9333 duration =
9334 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9335
9336 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9337 return -ERANGE;
9338
9339 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9340 if (!ret)
9341 rdev->crit_proto_nlportid = info->snd_portid;
9342
9343 return ret;
9344}
9345
9346static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9347 struct genl_info *info)
9348{
9349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9350 struct wireless_dev *wdev = info->user_ptr[1];
9351
9352 if (!rdev->ops->crit_proto_stop)
9353 return -EOPNOTSUPP;
9354
9355 if (rdev->crit_proto_nlportid) {
9356 rdev->crit_proto_nlportid = 0;
9357 rdev_crit_proto_stop(rdev, wdev);
9358 }
9359 return 0;
9360}
9361
ad7e718c
JB		 9362static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9363{
9364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9365 struct wireless_dev *wdev =
9366 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9367 int i, err;
9368 u32 vid, subcmd;
9369
9370 if (!rdev->wiphy.vendor_commands)
9371 return -EOPNOTSUPP;
9372
9373 if (IS_ERR(wdev)) {
9374 err = PTR_ERR(wdev);
9375 if (err != -EINVAL)
9376 return err;
9377 wdev = NULL;
9378 } else if (wdev->wiphy != &rdev->wiphy) {
9379 return -EINVAL;
9380 }
9381
9382 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9383 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9384 return -EINVAL;
9385
9386 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9387 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9388 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9389 const struct wiphy_vendor_command *vcmd;
9390 void *data = NULL;
9391 int len = 0;
9392
9393 vcmd = &rdev->wiphy.vendor_commands[i];
9394
9395 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9396 continue;
9397
9398 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9399 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9400 if (!wdev)
9401 return -EINVAL;
9402 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9403 !wdev->netdev)
9404 return -EINVAL;
9405
9406 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9407 if (wdev->netdev &&
9408 !netif_running(wdev->netdev))
9409 return -ENETDOWN;
9410 if (!wdev->netdev && !wdev->p2p_started)
9411 return -ENETDOWN;
9412 }
9413 } else {
9414 wdev = NULL;
9415 }
9416
9417 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9418 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9419 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9420 }
9421
9422 rdev->cur_cmd_info = info;
9423 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9424 data, len);
9425 rdev->cur_cmd_info = NULL;
9426 return err;
9427 }
9428
9429 return -EOPNOTSUPP;
9430}
9431
9432struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9433 enum nl80211_commands cmd,
9434 enum nl80211_attrs attr,
9435 int approxlen)
9436{
f26cbf40 9437 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9438
9439 if (WARN_ON(!rdev->cur_cmd_info))
9440 return NULL;
9441
9442 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9443 rdev->cur_cmd_info->snd_portid,
9444 rdev->cur_cmd_info->snd_seq,
567ffc35 9445 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9446}
9447EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9448
9449int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9450{
9451 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9452 void *hdr = ((void **)skb->cb)[1];
9453 struct nlattr *data = ((void **)skb->cb)[2];
9454
bd8c78e7
JB		 9455 /* clear CB data for netlink core to own from now on */
9456 memset(skb->cb, 0, sizeof(skb->cb));
9457
ad7e718c
JB		 9458 if (WARN_ON(!rdev->cur_cmd_info)) {
9459 kfree_skb(skb);
9460 return -EINVAL;
9461 }
9462
9463 nla_nest_end(skb, data);
9464 genlmsg_end(skb, hdr);
9465 return genlmsg_reply(skb, rdev->cur_cmd_info);
9466}
9467EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9468
9469
fa9ffc74
KP		 9470static int nl80211_set_qos_map(struct sk_buff *skb,
9471 struct genl_info *info)
9472{
9473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9474 struct cfg80211_qos_map *qos_map = NULL;
9475 struct net_device *dev = info->user_ptr[1];
9476 u8 *pos, len, num_des, des_len, des;
9477 int ret;
9478
9479 if (!rdev->ops->set_qos_map)
9480 return -EOPNOTSUPP;
9481
9482 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9483 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9484 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9485
9486 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9487 len > IEEE80211_QOS_MAP_LEN_MAX)
9488 return -EINVAL;
9489
9490 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9491 if (!qos_map)
9492 return -ENOMEM;
9493
9494 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9495 if (num_des) {
9496 des_len = num_des *
9497 sizeof(struct cfg80211_dscp_exception);
9498 memcpy(qos_map->dscp_exception, pos, des_len);
9499 qos_map->num_des = num_des;
9500 for (des = 0; des < num_des; des++) {
9501 if (qos_map->dscp_exception[des].up > 7) {
9502 kfree(qos_map);
9503 return -EINVAL;
9504 }
9505 }
9506 pos += des_len;
9507 }
9508 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9509 }
9510
9511 wdev_lock(dev->ieee80211_ptr);
9512 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9513 if (!ret)
9514 ret = rdev_set_qos_map(rdev, dev, qos_map);
9515 wdev_unlock(dev->ieee80211_ptr);
9516
9517 kfree(qos_map);
9518 return ret;
9519}
9520
960d01ac
JB		 9521static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9522{
9523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9524 struct net_device *dev = info->user_ptr[1];
9525 struct wireless_dev *wdev = dev->ieee80211_ptr;
9526 const u8 *peer;
9527 u8 tsid, up;
9528 u16 admitted_time = 0;
9529 int err;
9530
9531 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_WMM_ADMISSION))
9532 return -EOPNOTSUPP;
9533
9534 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9535 !info->attrs[NL80211_ATTR_USER_PRIO])
9536 return -EINVAL;
9537
9538 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9539 if (tsid >= IEEE80211_NUM_TIDS)
9540 return -EINVAL;
9541
9542 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9543 if (up >= IEEE80211_NUM_UPS)
9544 return -EINVAL;
9545
9546 /* WMM uses TIDs 0-7 even for TSPEC */
9547 if (tsid < IEEE80211_FIRST_TSPEC_TSID) {
9548 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_WMM_ADMISSION))
9549 return -EINVAL;
9550 } else {
9551 /* TODO: handle 802.11 TSPEC/admission control
9552 * need more attributes for that (e.g. BA session requirement)
9553 */
9554 return -EINVAL;
9555 }
9556
9557 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9558
9559 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9560 admitted_time =
9561 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9562 if (!admitted_time)
9563 return -EINVAL;
9564 }
9565
9566 wdev_lock(wdev);
9567 switch (wdev->iftype) {
9568 case NL80211_IFTYPE_STATION:
9569 case NL80211_IFTYPE_P2P_CLIENT:
9570 if (wdev->current_bss)
9571 break;
9572 err = -ENOTCONN;
9573 goto out;
9574 default:
9575 err = -EOPNOTSUPP;
9576 goto out;
9577 }
9578
9579 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9580
9581 out:
9582 wdev_unlock(wdev);
9583 return err;
9584}
9585
9586static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9587{
9588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9589 struct net_device *dev = info->user_ptr[1];
9590 struct wireless_dev *wdev = dev->ieee80211_ptr;
9591 const u8 *peer;
9592 u8 tsid;
9593 int err;
9594
9595 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9596 return -EINVAL;
9597
9598 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9599 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9600
9601 wdev_lock(wdev);
9602 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9603 wdev_unlock(wdev);
9604
9605 return err;
9606}
9607
4c476991
JB		 9608#define NL80211_FLAG_NEED_WIPHY 0x01
9609#define NL80211_FLAG_NEED_NETDEV 0x02
9610#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9611#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9612#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9613 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9614#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9615/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9616#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9617 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 9618#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 9619
f84f771d 9620static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9621 struct genl_info *info)
9622{
9623 struct cfg80211_registered_device *rdev;
89a54e48 9624 struct wireless_dev *wdev;
4c476991 9625 struct net_device *dev;
4c476991
JB		 9626 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9627
9628 if (rtnl)
9629 rtnl_lock();
9630
9631 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9632 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9633 if (IS_ERR(rdev)) {
9634 if (rtnl)
9635 rtnl_unlock();
9636 return PTR_ERR(rdev);
9637 }
9638 info->user_ptr[0] = rdev;
1bf614ef
JB		 9639 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9640 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9641 ASSERT_RTNL();
9642
89a54e48
JB		 9643 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9644 info->attrs);
9645 if (IS_ERR(wdev)) {
4c476991
JB		 9646 if (rtnl)
9647 rtnl_unlock();
89a54e48 9648 return PTR_ERR(wdev);
4c476991 9649 }
89a54e48 9650
89a54e48 9651 dev = wdev->netdev;
f26cbf40 9652 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9653
1bf614ef
JB		 9654 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9655 if (!dev) {
1bf614ef
JB		 9656 if (rtnl)
9657 rtnl_unlock();
9658 return -EINVAL;
9659 }
9660
9661 info->user_ptr[1] = dev;
9662 } else {
9663 info->user_ptr[1] = wdev;
41265714 9664 }
1bf614ef
JB		 9665
9666 if (dev) {
9667 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9668 !netif_running(dev)) {
1bf614ef
JB		 9669 if (rtnl)
9670 rtnl_unlock();
9671 return -ENETDOWN;
9672 }
9673
9674 dev_hold(dev);
98104fde
JB		 9675 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9676 if (!wdev->p2p_started) {
98104fde
JB		 9677 if (rtnl)
9678 rtnl_unlock();
9679 return -ENETDOWN;
9680 }
41265714 9681 }
89a54e48 9682
4c476991 9683 info->user_ptr[0] = rdev;
4c476991
JB		 9684 }
9685
9686 return 0;
9687}
9688
f84f771d 9689static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9690 struct genl_info *info)
9691{
1bf614ef
JB		 9692 if (info->user_ptr[1]) {
9693 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9694 struct wireless_dev *wdev = info->user_ptr[1];
9695
9696 if (wdev->netdev)
9697 dev_put(wdev->netdev);
9698 } else {
9699 dev_put(info->user_ptr[1]);
9700 }
9701 }
5393b917 9702
4c476991
JB		 9703 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9704 rtnl_unlock();
5393b917
JB		 9705
9706 /* If needed, clear the netlink message payload from the SKB
9707 * as it might contain key data that shouldn't stick around on
9708 * the heap after the SKB is freed. The netlink message header
9709 * is still needed for further processing, so leave it intact.
9710 */
9711 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
9712 struct nlmsghdr *nlh = nlmsg_hdr(skb);
9713
9714 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
9715 }
4c476991
JB		 9716}
9717
4534de83 9718static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9719 {
9720 .cmd = NL80211_CMD_GET_WIPHY,
9721 .doit = nl80211_get_wiphy,
9722 .dumpit = nl80211_dump_wiphy,
86e8cf98 9723 .done = nl80211_dump_wiphy_done,
55682965
JB		 9724 .policy = nl80211_policy,
9725 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9726 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9727 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9728 },
9729 {
9730 .cmd = NL80211_CMD_SET_WIPHY,
9731 .doit = nl80211_set_wiphy,
9732 .policy = nl80211_policy,
9733 .flags = GENL_ADMIN_PERM,
4c476991 9734 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9735 },
9736 {
9737 .cmd = NL80211_CMD_GET_INTERFACE,
9738 .doit = nl80211_get_interface,
9739 .dumpit = nl80211_dump_interface,
9740 .policy = nl80211_policy,
9741 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9742 .internal_flags = NL80211_FLAG_NEED_WDEV |
9743 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9744 },
9745 {
9746 .cmd = NL80211_CMD_SET_INTERFACE,
9747 .doit = nl80211_set_interface,
9748 .policy = nl80211_policy,
9749 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9750 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9751 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9752 },
9753 {
9754 .cmd = NL80211_CMD_NEW_INTERFACE,
9755 .doit = nl80211_new_interface,
9756 .policy = nl80211_policy,
9757 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9758 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9759 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9760 },
9761 {
9762 .cmd = NL80211_CMD_DEL_INTERFACE,
9763 .doit = nl80211_del_interface,
9764 .policy = nl80211_policy,
41ade00f 9765 .flags = GENL_ADMIN_PERM,
84efbb84 9766 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9767 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9768 },
9769 {
9770 .cmd = NL80211_CMD_GET_KEY,
9771 .doit = nl80211_get_key,
9772 .policy = nl80211_policy,
9773 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9775 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9776 },
9777 {
9778 .cmd = NL80211_CMD_SET_KEY,
9779 .doit = nl80211_set_key,
9780 .policy = nl80211_policy,
9781 .flags = GENL_ADMIN_PERM,
41265714 9782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9783 NL80211_FLAG_NEED_RTNL |
9784 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 9785 },
9786 {
9787 .cmd = NL80211_CMD_NEW_KEY,
9788 .doit = nl80211_new_key,
9789 .policy = nl80211_policy,
9790 .flags = GENL_ADMIN_PERM,
41265714 9791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9792 NL80211_FLAG_NEED_RTNL |
9793 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 9794 },
9795 {
9796 .cmd = NL80211_CMD_DEL_KEY,
9797 .doit = nl80211_del_key,
9798 .policy = nl80211_policy,
55682965 9799 .flags = GENL_ADMIN_PERM,
41265714 9800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9801 NL80211_FLAG_NEED_RTNL,
55682965 9802 },
ed1b6cc7
JB		 9803 {
9804 .cmd = NL80211_CMD_SET_BEACON,
9805 .policy = nl80211_policy,
9806 .flags = GENL_ADMIN_PERM,
8860020e 9807 .doit = nl80211_set_beacon,
2b5f8b0b 9808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9809 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9810 },
9811 {
8860020e 9812 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9813 .policy = nl80211_policy,
9814 .flags = GENL_ADMIN_PERM,
8860020e 9815 .doit = nl80211_start_ap,
2b5f8b0b 9816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9817 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9818 },
9819 {
8860020e 9820 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9821 .policy = nl80211_policy,
9822 .flags = GENL_ADMIN_PERM,
8860020e 9823 .doit = nl80211_stop_ap,
2b5f8b0b 9824 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9825 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9826 },
5727ef1b
JB		 9827 {
9828 .cmd = NL80211_CMD_GET_STATION,
9829 .doit = nl80211_get_station,
2ec600d6 9830 .dumpit = nl80211_dump_station,
5727ef1b 9831 .policy = nl80211_policy,
4c476991
JB		 9832 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9833 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9834 },
9835 {
9836 .cmd = NL80211_CMD_SET_STATION,
9837 .doit = nl80211_set_station,
9838 .policy = nl80211_policy,
9839 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9841 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9842 },
9843 {
9844 .cmd = NL80211_CMD_NEW_STATION,
9845 .doit = nl80211_new_station,
9846 .policy = nl80211_policy,
9847 .flags = GENL_ADMIN_PERM,
41265714 9848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9849 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9850 },
9851 {
9852 .cmd = NL80211_CMD_DEL_STATION,
9853 .doit = nl80211_del_station,
9854 .policy = nl80211_policy,
2ec600d6 9855 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9857 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9858 },
9859 {
9860 .cmd = NL80211_CMD_GET_MPATH,
9861 .doit = nl80211_get_mpath,
9862 .dumpit = nl80211_dump_mpath,
9863 .policy = nl80211_policy,
9864 .flags = GENL_ADMIN_PERM,
41265714 9865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9866 NL80211_FLAG_NEED_RTNL,
2ec600d6 9867 },
66be7d2b
HR		 9868 {
9869 .cmd = NL80211_CMD_GET_MPP,
9870 .doit = nl80211_get_mpp,
9871 .dumpit = nl80211_dump_mpp,
9872 .policy = nl80211_policy,
9873 .flags = GENL_ADMIN_PERM,
9874 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9875 NL80211_FLAG_NEED_RTNL,
9876 },
2ec600d6
LCC		 9877 {
9878 .cmd = NL80211_CMD_SET_MPATH,
9879 .doit = nl80211_set_mpath,
9880 .policy = nl80211_policy,
9881 .flags = GENL_ADMIN_PERM,
41265714 9882 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9883 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9884 },
9885 {
9886 .cmd = NL80211_CMD_NEW_MPATH,
9887 .doit = nl80211_new_mpath,
9888 .policy = nl80211_policy,
9889 .flags = GENL_ADMIN_PERM,
41265714 9890 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9891 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9892 },
9893 {
9894 .cmd = NL80211_CMD_DEL_MPATH,
9895 .doit = nl80211_del_mpath,
9896 .policy = nl80211_policy,
9f1ba906 9897 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9899 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9900 },
9901 {
9902 .cmd = NL80211_CMD_SET_BSS,
9903 .doit = nl80211_set_bss,
9904 .policy = nl80211_policy,
b2e1b302 9905 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9906 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9907 NL80211_FLAG_NEED_RTNL,
b2e1b302 9908 },
f130347c
LR		 9909 {
9910 .cmd = NL80211_CMD_GET_REG,
9911 .doit = nl80211_get_reg,
9912 .policy = nl80211_policy,
5fe231e8 9913 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9914 /* can be retrieved by unprivileged users */
9915 },
b2e1b302
LR		 9916 {
9917 .cmd = NL80211_CMD_SET_REG,
9918 .doit = nl80211_set_reg,
9919 .policy = nl80211_policy,
9920 .flags = GENL_ADMIN_PERM,
5fe231e8 9921 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9922 },
9923 {
9924 .cmd = NL80211_CMD_REQ_SET_REG,
9925 .doit = nl80211_req_set_reg,
9926 .policy = nl80211_policy,
93da9cc1 9927 .flags = GENL_ADMIN_PERM,
9928 },
9929 {
24bdd9f4
JC		 9930 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9931 .doit = nl80211_get_mesh_config,
93da9cc1 9932 .policy = nl80211_policy,
9933 /* can be retrieved by unprivileged users */
2b5f8b0b 9934 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9935 NL80211_FLAG_NEED_RTNL,
93da9cc1 9936 },
9937 {
24bdd9f4
JC		 9938 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9939 .doit = nl80211_update_mesh_config,
93da9cc1 9940 .policy = nl80211_policy,
9aed3cc1 9941 .flags = GENL_ADMIN_PERM,
29cbe68c 9942 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9943 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9944 },
2a519311
JB		 9945 {
9946 .cmd = NL80211_CMD_TRIGGER_SCAN,
9947 .doit = nl80211_trigger_scan,
9948 .policy = nl80211_policy,
9949 .flags = GENL_ADMIN_PERM,
fd014284 9950 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9951 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9952 },
9953 {
9954 .cmd = NL80211_CMD_GET_SCAN,
9955 .policy = nl80211_policy,
9956 .dumpit = nl80211_dump_scan,
9957 },
807f8a8c
LC		 9958 {
9959 .cmd = NL80211_CMD_START_SCHED_SCAN,
9960 .doit = nl80211_start_sched_scan,
9961 .policy = nl80211_policy,
9962 .flags = GENL_ADMIN_PERM,
9963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9964 NL80211_FLAG_NEED_RTNL,
9965 },
9966 {
9967 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9968 .doit = nl80211_stop_sched_scan,
9969 .policy = nl80211_policy,
9970 .flags = GENL_ADMIN_PERM,
9971 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9972 NL80211_FLAG_NEED_RTNL,
9973 },
636a5d36
JM		 9974 {
9975 .cmd = NL80211_CMD_AUTHENTICATE,
9976 .doit = nl80211_authenticate,
9977 .policy = nl80211_policy,
9978 .flags = GENL_ADMIN_PERM,
41265714 9979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9980 NL80211_FLAG_NEED_RTNL |
9981 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 9982 },
9983 {
9984 .cmd = NL80211_CMD_ASSOCIATE,
9985 .doit = nl80211_associate,
9986 .policy = nl80211_policy,
9987 .flags = GENL_ADMIN_PERM,
41265714 9988 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9989 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9990 },
9991 {
9992 .cmd = NL80211_CMD_DEAUTHENTICATE,
9993 .doit = nl80211_deauthenticate,
9994 .policy = nl80211_policy,
9995 .flags = GENL_ADMIN_PERM,
41265714 9996 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9997 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9998 },
9999 {
10000 .cmd = NL80211_CMD_DISASSOCIATE,
10001 .doit = nl80211_disassociate,
10002 .policy = nl80211_policy,
10003 .flags = GENL_ADMIN_PERM,
41265714 10004 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10005 NL80211_FLAG_NEED_RTNL,
636a5d36 10006 },
04a773ad
JB		 10007 {
10008 .cmd = NL80211_CMD_JOIN_IBSS,
10009 .doit = nl80211_join_ibss,
10010 .policy = nl80211_policy,
10011 .flags = GENL_ADMIN_PERM,
41265714 10012 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10013 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10014 },
10015 {
10016 .cmd = NL80211_CMD_LEAVE_IBSS,
10017 .doit = nl80211_leave_ibss,
10018 .policy = nl80211_policy,
10019 .flags = GENL_ADMIN_PERM,
41265714 10020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10021 NL80211_FLAG_NEED_RTNL,
04a773ad 10022 },
aff89a9b
JB		 10023#ifdef CONFIG_NL80211_TESTMODE
10024 {
10025 .cmd = NL80211_CMD_TESTMODE,
10026 .doit = nl80211_testmode_do,
71063f0e 10027 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10028 .policy = nl80211_policy,
10029 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10030 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10031 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10032 },
10033#endif
b23aa676
SO		 10034 {
10035 .cmd = NL80211_CMD_CONNECT,
10036 .doit = nl80211_connect,
10037 .policy = nl80211_policy,
10038 .flags = GENL_ADMIN_PERM,
41265714 10039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10040 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10041 },
10042 {
10043 .cmd = NL80211_CMD_DISCONNECT,
10044 .doit = nl80211_disconnect,
10045 .policy = nl80211_policy,
10046 .flags = GENL_ADMIN_PERM,
41265714 10047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10048 NL80211_FLAG_NEED_RTNL,
b23aa676 10049 },
463d0183
JB		 10050 {
10051 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10052 .doit = nl80211_wiphy_netns,
10053 .policy = nl80211_policy,
10054 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10055 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10056 NL80211_FLAG_NEED_RTNL,
463d0183 10057 },
61fa713c
HS		 10058 {
10059 .cmd = NL80211_CMD_GET_SURVEY,
10060 .policy = nl80211_policy,
10061 .dumpit = nl80211_dump_survey,
10062 },
67fbb16b
SO		 10063 {
10064 .cmd = NL80211_CMD_SET_PMKSA,
10065 .doit = nl80211_setdel_pmksa,
10066 .policy = nl80211_policy,
10067 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10068 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10069 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10070 },
10071 {
10072 .cmd = NL80211_CMD_DEL_PMKSA,
10073 .doit = nl80211_setdel_pmksa,
10074 .policy = nl80211_policy,
10075 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10076 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10077 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10078 },
10079 {
10080 .cmd = NL80211_CMD_FLUSH_PMKSA,
10081 .doit = nl80211_flush_pmksa,
10082 .policy = nl80211_policy,
10083 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10084 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10085 NL80211_FLAG_NEED_RTNL,
67fbb16b 10086 },
9588bbd5
JM		 10087 {
10088 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10089 .doit = nl80211_remain_on_channel,
10090 .policy = nl80211_policy,
10091 .flags = GENL_ADMIN_PERM,
71bbc994 10092 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10093 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10094 },
10095 {
10096 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10097 .doit = nl80211_cancel_remain_on_channel,
10098 .policy = nl80211_policy,
10099 .flags = GENL_ADMIN_PERM,
71bbc994 10100 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10101 NL80211_FLAG_NEED_RTNL,
9588bbd5 10102 },
13ae75b1
JM		 10103 {
10104 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10105 .doit = nl80211_set_tx_bitrate_mask,
10106 .policy = nl80211_policy,
10107 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10108 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10109 NL80211_FLAG_NEED_RTNL,
13ae75b1 10110 },
026331c4 10111 {
2e161f78
JB		 10112 .cmd = NL80211_CMD_REGISTER_FRAME,
10113 .doit = nl80211_register_mgmt,
026331c4
JM		 10114 .policy = nl80211_policy,
10115 .flags = GENL_ADMIN_PERM,
71bbc994 10116 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10117 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10118 },
10119 {
2e161f78
JB		 10120 .cmd = NL80211_CMD_FRAME,
10121 .doit = nl80211_tx_mgmt,
026331c4 10122 .policy = nl80211_policy,
f7ca38df 10123 .flags = GENL_ADMIN_PERM,
71bbc994 10124 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10125 NL80211_FLAG_NEED_RTNL,
10126 },
10127 {
10128 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10129 .doit = nl80211_tx_mgmt_cancel_wait,
10130 .policy = nl80211_policy,
026331c4 10131 .flags = GENL_ADMIN_PERM,
71bbc994 10132 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10133 NL80211_FLAG_NEED_RTNL,
026331c4 10134 },
ffb9eb3d
KV		 10135 {
10136 .cmd = NL80211_CMD_SET_POWER_SAVE,
10137 .doit = nl80211_set_power_save,
10138 .policy = nl80211_policy,
10139 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10140 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10141 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10142 },
10143 {
10144 .cmd = NL80211_CMD_GET_POWER_SAVE,
10145 .doit = nl80211_get_power_save,
10146 .policy = nl80211_policy,
10147 /* can be retrieved by unprivileged users */
4c476991
JB		 10148 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10149 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10150 },
d6dc1a38
JO		 10151 {
10152 .cmd = NL80211_CMD_SET_CQM,
10153 .doit = nl80211_set_cqm,
10154 .policy = nl80211_policy,
10155 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10156 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10157 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10158 },
f444de05
JB		 10159 {
10160 .cmd = NL80211_CMD_SET_CHANNEL,
10161 .doit = nl80211_set_channel,
10162 .policy = nl80211_policy,
10163 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10164 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10165 NL80211_FLAG_NEED_RTNL,
f444de05 10166 },
e8347eba
BJ		 10167 {
10168 .cmd = NL80211_CMD_SET_WDS_PEER,
10169 .doit = nl80211_set_wds_peer,
10170 .policy = nl80211_policy,
10171 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10172 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10173 NL80211_FLAG_NEED_RTNL,
e8347eba 10174 },
29cbe68c
JB		 10175 {
10176 .cmd = NL80211_CMD_JOIN_MESH,
10177 .doit = nl80211_join_mesh,
10178 .policy = nl80211_policy,
10179 .flags = GENL_ADMIN_PERM,
10180 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10181 NL80211_FLAG_NEED_RTNL,
10182 },
10183 {
10184 .cmd = NL80211_CMD_LEAVE_MESH,
10185 .doit = nl80211_leave_mesh,
10186 .policy = nl80211_policy,
10187 .flags = GENL_ADMIN_PERM,
10188 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10189 NL80211_FLAG_NEED_RTNL,
10190 },
dfb89c56 10191#ifdef CONFIG_PM
ff1b6e69
JB		 10192 {
10193 .cmd = NL80211_CMD_GET_WOWLAN,
10194 .doit = nl80211_get_wowlan,
10195 .policy = nl80211_policy,
10196 /* can be retrieved by unprivileged users */
10197 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10198 NL80211_FLAG_NEED_RTNL,
10199 },
10200 {
10201 .cmd = NL80211_CMD_SET_WOWLAN,
10202 .doit = nl80211_set_wowlan,
10203 .policy = nl80211_policy,
10204 .flags = GENL_ADMIN_PERM,
10205 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10206 NL80211_FLAG_NEED_RTNL,
10207 },
dfb89c56 10208#endif
e5497d76
JB		 10209 {
10210 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10211 .doit = nl80211_set_rekey_data,
10212 .policy = nl80211_policy,
10213 .flags = GENL_ADMIN_PERM,
10214 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10215 NL80211_FLAG_NEED_RTNL |
10216 NL80211_FLAG_CLEAR_SKB,
e5497d76 10217 },
109086ce
AN		 10218 {
10219 .cmd = NL80211_CMD_TDLS_MGMT,
10220 .doit = nl80211_tdls_mgmt,
10221 .policy = nl80211_policy,
10222 .flags = GENL_ADMIN_PERM,
10223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10224 NL80211_FLAG_NEED_RTNL,
10225 },
10226 {
10227 .cmd = NL80211_CMD_TDLS_OPER,
10228 .doit = nl80211_tdls_oper,
10229 .policy = nl80211_policy,
10230 .flags = GENL_ADMIN_PERM,
10231 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10232 NL80211_FLAG_NEED_RTNL,
10233 },
28946da7
JB		 10234 {
10235 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10236 .doit = nl80211_register_unexpected_frame,
10237 .policy = nl80211_policy,
10238 .flags = GENL_ADMIN_PERM,
10239 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10240 NL80211_FLAG_NEED_RTNL,
10241 },
7f6cf311
JB		 10242 {
10243 .cmd = NL80211_CMD_PROBE_CLIENT,
10244 .doit = nl80211_probe_client,
10245 .policy = nl80211_policy,
10246 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10247 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10248 NL80211_FLAG_NEED_RTNL,
10249 },
5e760230
JB		 10250 {
10251 .cmd = NL80211_CMD_REGISTER_BEACONS,
10252 .doit = nl80211_register_beacons,
10253 .policy = nl80211_policy,
10254 .flags = GENL_ADMIN_PERM,
10255 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10256 NL80211_FLAG_NEED_RTNL,
10257 },
1d9d9213
SW		 10258 {
10259 .cmd = NL80211_CMD_SET_NOACK_MAP,
10260 .doit = nl80211_set_noack_map,
10261 .policy = nl80211_policy,
10262 .flags = GENL_ADMIN_PERM,
10263 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10264 NL80211_FLAG_NEED_RTNL,
10265 },
98104fde
JB		 10266 {
10267 .cmd = NL80211_CMD_START_P2P_DEVICE,
10268 .doit = nl80211_start_p2p_device,
10269 .policy = nl80211_policy,
10270 .flags = GENL_ADMIN_PERM,
10271 .internal_flags = NL80211_FLAG_NEED_WDEV |
10272 NL80211_FLAG_NEED_RTNL,
10273 },
10274 {
10275 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10276 .doit = nl80211_stop_p2p_device,
10277 .policy = nl80211_policy,
10278 .flags = GENL_ADMIN_PERM,
10279 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10280 NL80211_FLAG_NEED_RTNL,
10281 },
f4e583c8
AQ		 10282 {
10283 .cmd = NL80211_CMD_SET_MCAST_RATE,
10284 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10285 .policy = nl80211_policy,
10286 .flags = GENL_ADMIN_PERM,
10287 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10288 NL80211_FLAG_NEED_RTNL,
10289 },
10290 {
10291 .cmd = NL80211_CMD_SET_MAC_ACL,
10292 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10293 .policy = nl80211_policy,
10294 .flags = GENL_ADMIN_PERM,
10295 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10296 NL80211_FLAG_NEED_RTNL,
10297 },
04f39047
SW		 10298 {
10299 .cmd = NL80211_CMD_RADAR_DETECT,
10300 .doit = nl80211_start_radar_detection,
10301 .policy = nl80211_policy,
10302 .flags = GENL_ADMIN_PERM,
10303 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10304 NL80211_FLAG_NEED_RTNL,
10305 },
3713b4e3
JB		 10306 {
10307 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10308 .doit = nl80211_get_protocol_features,
10309 .policy = nl80211_policy,
10310 },
355199e0
JM		 10311 {
10312 .cmd = NL80211_CMD_UPDATE_FT_IES,
10313 .doit = nl80211_update_ft_ies,
10314 .policy = nl80211_policy,
10315 .flags = GENL_ADMIN_PERM,
10316 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10317 NL80211_FLAG_NEED_RTNL,
10318 },
5de17984
AS		 10319 {
10320 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10321 .doit = nl80211_crit_protocol_start,
10322 .policy = nl80211_policy,
10323 .flags = GENL_ADMIN_PERM,
10324 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10325 NL80211_FLAG_NEED_RTNL,
10326 },
10327 {
10328 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10329 .doit = nl80211_crit_protocol_stop,
10330 .policy = nl80211_policy,
10331 .flags = GENL_ADMIN_PERM,
10332 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10333 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10334 },
10335 {
10336 .cmd = NL80211_CMD_GET_COALESCE,
10337 .doit = nl80211_get_coalesce,
10338 .policy = nl80211_policy,
10339 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10340 NL80211_FLAG_NEED_RTNL,
10341 },
10342 {
10343 .cmd = NL80211_CMD_SET_COALESCE,
10344 .doit = nl80211_set_coalesce,
10345 .policy = nl80211_policy,
10346 .flags = GENL_ADMIN_PERM,
10347 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10348 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10349 },
10350 {
10351 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10352 .doit = nl80211_channel_switch,
10353 .policy = nl80211_policy,
10354 .flags = GENL_ADMIN_PERM,
10355 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10356 NL80211_FLAG_NEED_RTNL,
10357 },
ad7e718c
JB		 10358 {
10359 .cmd = NL80211_CMD_VENDOR,
10360 .doit = nl80211_vendor_cmd,
10361 .policy = nl80211_policy,
10362 .flags = GENL_ADMIN_PERM,
10363 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10364 NL80211_FLAG_NEED_RTNL,
10365 },
fa9ffc74
KP		 10366 {
10367 .cmd = NL80211_CMD_SET_QOS_MAP,
10368 .doit = nl80211_set_qos_map,
10369 .policy = nl80211_policy,
10370 .flags = GENL_ADMIN_PERM,
10371 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10372 NL80211_FLAG_NEED_RTNL,
10373 },
960d01ac
JB		 10374 {
10375 .cmd = NL80211_CMD_ADD_TX_TS,
10376 .doit = nl80211_add_tx_ts,
10377 .policy = nl80211_policy,
10378 .flags = GENL_ADMIN_PERM,
10379 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10380 NL80211_FLAG_NEED_RTNL,
10381 },
10382 {
10383 .cmd = NL80211_CMD_DEL_TX_TS,
10384 .doit = nl80211_del_tx_ts,
10385 .policy = nl80211_policy,
10386 .flags = GENL_ADMIN_PERM,
10387 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10388 NL80211_FLAG_NEED_RTNL,
10389 },
55682965 10390};
9588bbd5 10391
55682965
JB		 10392/* notification functions */
10393
3bb20556
JB		 10394void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10395 enum nl80211_commands cmd)
55682965
JB		 10396{
10397 struct sk_buff *msg;
86e8cf98 10398 struct nl80211_dump_wiphy_state state = {};
55682965 10399
3bb20556
JB		 10400 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10401 cmd != NL80211_CMD_DEL_WIPHY);
10402
fd2120ca 10403 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10404 if (!msg)
10405 return;
10406
3bb20556 10407 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10408 nlmsg_free(msg);
10409 return;
10410 }
10411
68eb5503 10412 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10413 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10414}
10415
362a415d
JB		 10416static int nl80211_add_scan_req(struct sk_buff *msg,
10417 struct cfg80211_registered_device *rdev)
10418{
10419 struct cfg80211_scan_request *req = rdev->scan_req;
10420 struct nlattr *nest;
10421 int i;
10422
10423 if (WARN_ON(!req))
10424 return 0;
10425
10426 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10427 if (!nest)
10428 goto nla_put_failure;
9360ffd1
DM		 10429 for (i = 0; i < req->n_ssids; i++) {
10430 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10431 goto nla_put_failure;
10432 }
362a415d
JB		 10433 nla_nest_end(msg, nest);
10434
10435 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10436 if (!nest)
10437 goto nla_put_failure;
9360ffd1
DM		 10438 for (i = 0; i < req->n_channels; i++) {
10439 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10440 goto nla_put_failure;
10441 }
362a415d
JB		 10442 nla_nest_end(msg, nest);
10443
9360ffd1
DM		 10444 if (req->ie &&
10445 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10446 goto nla_put_failure;
362a415d 10447
ae917c9f
JB		 10448 if (req->flags &&
10449 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10450 goto nla_put_failure;
ed473771 10451
362a415d
JB		 10452 return 0;
10453 nla_put_failure:
10454 return -ENOBUFS;
10455}
10456
a538e2d5
JB		 10457static int nl80211_send_scan_msg(struct sk_buff *msg,
10458 struct cfg80211_registered_device *rdev,
fd014284 10459 struct wireless_dev *wdev,
15e47304 10460 u32 portid, u32 seq, int flags,
a538e2d5 10461 u32 cmd)
2a519311
JB		 10462{
10463 void *hdr;
10464
15e47304 10465 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10466 if (!hdr)
10467 return -1;
10468
9360ffd1 10469 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10470 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10471 wdev->netdev->ifindex)) ||
10472 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10473 goto nla_put_failure;
2a519311 10474
362a415d
JB		 10475 /* ignore errors and send incomplete event anyway */
10476 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10477
10478 return genlmsg_end(msg, hdr);
10479
10480 nla_put_failure:
10481 genlmsg_cancel(msg, hdr);
10482 return -EMSGSIZE;
10483}
10484
807f8a8c
LC		 10485static int
10486nl80211_send_sched_scan_msg(struct sk_buff *msg,
10487 struct cfg80211_registered_device *rdev,
10488 struct net_device *netdev,
15e47304 10489 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10490{
10491 void *hdr;
10492
15e47304 10493 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10494 if (!hdr)
10495 return -1;
10496
9360ffd1
DM		 10497 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10498 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10499 goto nla_put_failure;
807f8a8c
LC		 10500
10501 return genlmsg_end(msg, hdr);
10502
10503 nla_put_failure:
10504 genlmsg_cancel(msg, hdr);
10505 return -EMSGSIZE;
10506}
10507
a538e2d5 10508void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10509 struct wireless_dev *wdev)
a538e2d5
JB		 10510{
10511 struct sk_buff *msg;
10512
58050fce 10513 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10514 if (!msg)
10515 return;
10516
fd014284 10517 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10518 NL80211_CMD_TRIGGER_SCAN) < 0) {
10519 nlmsg_free(msg);
10520 return;
10521 }
10522
68eb5503 10523 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10524 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10525}
10526
f9d15d16
JB		 10527struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10528 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10529{
10530 struct sk_buff *msg;
10531
fd2120ca 10532 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10533 if (!msg)
f9d15d16 10534 return NULL;
2a519311 10535
fd014284 10536 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10537 aborted ? NL80211_CMD_SCAN_ABORTED :
10538 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10539 nlmsg_free(msg);
f9d15d16 10540 return NULL;
2a519311
JB		 10541 }
10542
f9d15d16 10543 return msg;
2a519311
JB		 10544}
10545
f9d15d16
JB		 10546void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10547 struct sk_buff *msg)
2a519311 10548{
2a519311
JB		 10549 if (!msg)
10550 return;
10551
68eb5503 10552 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10553 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10554}
10555
807f8a8c
LC		 10556void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10557 struct net_device *netdev)
10558{
10559 struct sk_buff *msg;
10560
10561 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10562 if (!msg)
10563 return;
10564
10565 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10566 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10567 nlmsg_free(msg);
10568 return;
10569 }
10570
68eb5503 10571 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10572 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10573}
10574
10575void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10576 struct net_device *netdev, u32 cmd)
10577{
10578 struct sk_buff *msg;
10579
58050fce 10580 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10581 if (!msg)
10582 return;
10583
10584 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10585 nlmsg_free(msg);
10586 return;
10587 }
10588
68eb5503 10589 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10590 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10591}
10592
73d54c9e
LR		 10593/*
10594 * This can happen on global regulatory changes or device specific settings
10595 * based on custom world regulatory domains.
10596 */
10597void nl80211_send_reg_change_event(struct regulatory_request *request)
10598{
10599 struct sk_buff *msg;
10600 void *hdr;
10601
fd2120ca 10602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10603 if (!msg)
10604 return;
10605
10606 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10607 if (!hdr) {
10608 nlmsg_free(msg);
10609 return;
10610 }
10611
10612 /* Userspace can always count this one always being set */
9360ffd1
DM		 10613 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10614 goto nla_put_failure;
10615
10616 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10617 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10618 NL80211_REGDOM_TYPE_WORLD))
10619 goto nla_put_failure;
10620 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10621 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10622 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10623 goto nla_put_failure;
10624 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10625 request->intersect) {
10626 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10627 NL80211_REGDOM_TYPE_INTERSECTION))
10628 goto nla_put_failure;
10629 } else {
10630 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10631 NL80211_REGDOM_TYPE_COUNTRY) ||
10632 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10633 request->alpha2))
10634 goto nla_put_failure;
10635 }
10636
f4173766 10637 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10638 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10639 goto nla_put_failure;
73d54c9e 10640
3b7b72ee 10641 genlmsg_end(msg, hdr);
73d54c9e 10642
bc43b28c 10643 rcu_read_lock();
68eb5503 10644 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10645 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10646 rcu_read_unlock();
73d54c9e
LR		 10647
10648 return;
10649
10650nla_put_failure:
10651 genlmsg_cancel(msg, hdr);
10652 nlmsg_free(msg);
10653}
10654
6039f6d2
JM		 10655static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10656 struct net_device *netdev,
10657 const u8 *buf, size_t len,
b0b6aa2c
EP		 10658 enum nl80211_commands cmd, gfp_t gfp,
10659 int uapsd_queues)
6039f6d2
JM		 10660{
10661 struct sk_buff *msg;
10662 void *hdr;
10663
e6d6e342 10664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10665 if (!msg)
10666 return;
10667
10668 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10669 if (!hdr) {
10670 nlmsg_free(msg);
10671 return;
10672 }
10673
9360ffd1
DM		 10674 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10675 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10676 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10677 goto nla_put_failure;
6039f6d2 10678
b0b6aa2c
EP		 10679 if (uapsd_queues >= 0) {
10680 struct nlattr *nla_wmm =
10681 nla_nest_start(msg, NL80211_ATTR_STA_WME);
10682 if (!nla_wmm)
10683 goto nla_put_failure;
10684
10685 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
10686 uapsd_queues))
10687 goto nla_put_failure;
10688
10689 nla_nest_end(msg, nla_wmm);
10690 }
10691
3b7b72ee 10692 genlmsg_end(msg, hdr);
6039f6d2 10693
68eb5503 10694 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10695 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10696 return;
10697
10698 nla_put_failure:
10699 genlmsg_cancel(msg, hdr);
10700 nlmsg_free(msg);
10701}
10702
10703void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10704 struct net_device *netdev, const u8 *buf,
10705 size_t len, gfp_t gfp)
6039f6d2
JM		 10706{
10707 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10708 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 10709}
10710
10711void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10712 struct net_device *netdev, const u8 *buf,
b0b6aa2c 10713 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 10714{
e6d6e342 10715 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10716 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 10717}
10718
53b46b84 10719void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10720 struct net_device *netdev, const u8 *buf,
10721 size_t len, gfp_t gfp)
6039f6d2
JM		 10722{
10723 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10724 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 10725}
10726
53b46b84
JM		 10727void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10728 struct net_device *netdev, const u8 *buf,
e6d6e342 10729 size_t len, gfp_t gfp)
6039f6d2
JM		 10730{
10731 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10732 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 10733}
10734
6ff57cf8
JB		 10735void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10736 size_t len)
cf4e594e 10737{
947add36
JB		 10738 struct wireless_dev *wdev = dev->ieee80211_ptr;
10739 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10740 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10741 const struct ieee80211_mgmt *mgmt = (void *)buf;
10742 u32 cmd;
947add36 10743
6ff57cf8
JB		 10744 if (WARN_ON(len < 2))
10745 return;
cf4e594e 10746
6ff57cf8
JB		 10747 if (ieee80211_is_deauth(mgmt->frame_control))
10748 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10749 else
10750 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10751
6ff57cf8 10752 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 10753 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 10754}
6ff57cf8 10755EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10756
1b06bb40
LR		 10757static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10758 struct net_device *netdev, int cmd,
e6d6e342 10759 const u8 *addr, gfp_t gfp)
1965c853
JM		 10760{
10761 struct sk_buff *msg;
10762 void *hdr;
10763
e6d6e342 10764 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10765 if (!msg)
10766 return;
10767
10768 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10769 if (!hdr) {
10770 nlmsg_free(msg);
10771 return;
10772 }
10773
9360ffd1
DM		 10774 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10775 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10776 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10777 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10778 goto nla_put_failure;
1965c853 10779
3b7b72ee 10780 genlmsg_end(msg, hdr);
1965c853 10781
68eb5503 10782 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10783 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10784 return;
10785
10786 nla_put_failure:
10787 genlmsg_cancel(msg, hdr);
10788 nlmsg_free(msg);
10789}
10790
10791void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10792 struct net_device *netdev, const u8 *addr,
10793 gfp_t gfp)
1965c853
JM		 10794{
10795 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10796 addr, gfp);
1965c853
JM		 10797}
10798
10799void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10800 struct net_device *netdev, const u8 *addr,
10801 gfp_t gfp)
1965c853 10802{
e6d6e342
JB		 10803 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10804 addr, gfp);
1965c853
JM		 10805}
10806
b23aa676
SO		 10807void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10808 struct net_device *netdev, const u8 *bssid,
10809 const u8 *req_ie, size_t req_ie_len,
10810 const u8 *resp_ie, size_t resp_ie_len,
10811 u16 status, gfp_t gfp)
10812{
10813 struct sk_buff *msg;
10814 void *hdr;
10815
58050fce 10816 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10817 if (!msg)
10818 return;
10819
10820 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10821 if (!hdr) {
10822 nlmsg_free(msg);
10823 return;
10824 }
10825
9360ffd1
DM		 10826 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10827 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10828 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10829 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10830 (req_ie &&
10831 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10832 (resp_ie &&
10833 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10834 goto nla_put_failure;
b23aa676 10835
3b7b72ee 10836 genlmsg_end(msg, hdr);
b23aa676 10837
68eb5503 10838 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10839 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10840 return;
10841
10842 nla_put_failure:
10843 genlmsg_cancel(msg, hdr);
10844 nlmsg_free(msg);
10845
10846}
10847
10848void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10849 struct net_device *netdev, const u8 *bssid,
10850 const u8 *req_ie, size_t req_ie_len,
10851 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10852{
10853 struct sk_buff *msg;
10854 void *hdr;
10855
58050fce 10856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10857 if (!msg)
10858 return;
10859
10860 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10861 if (!hdr) {
10862 nlmsg_free(msg);
10863 return;
10864 }
10865
9360ffd1
DM		 10866 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10867 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10868 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10869 (req_ie &&
10870 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10871 (resp_ie &&
10872 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10873 goto nla_put_failure;
b23aa676 10874
3b7b72ee 10875 genlmsg_end(msg, hdr);
b23aa676 10876
68eb5503 10877 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10878 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10879 return;
10880
10881 nla_put_failure:
10882 genlmsg_cancel(msg, hdr);
10883 nlmsg_free(msg);
10884
10885}
10886
10887void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10888 struct net_device *netdev, u16 reason,
667503dd 10889 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10890{
10891 struct sk_buff *msg;
10892 void *hdr;
10893
58050fce 10894 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10895 if (!msg)
10896 return;
10897
10898 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10899 if (!hdr) {
10900 nlmsg_free(msg);
10901 return;
10902 }
10903
9360ffd1
DM		 10904 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10905 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10906 (from_ap && reason &&
10907 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10908 (from_ap &&
10909 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10910 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10911 goto nla_put_failure;
b23aa676 10912
3b7b72ee 10913 genlmsg_end(msg, hdr);
b23aa676 10914
68eb5503 10915 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10916 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10917 return;
10918
10919 nla_put_failure:
10920 genlmsg_cancel(msg, hdr);
10921 nlmsg_free(msg);
10922
10923}
10924
04a773ad
JB		 10925void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10926 struct net_device *netdev, const u8 *bssid,
10927 gfp_t gfp)
10928{
10929 struct sk_buff *msg;
10930 void *hdr;
10931
fd2120ca 10932 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10933 if (!msg)
10934 return;
10935
10936 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10937 if (!hdr) {
10938 nlmsg_free(msg);
10939 return;
10940 }
10941
9360ffd1
DM		 10942 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10943 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10944 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10945 goto nla_put_failure;
04a773ad 10946
3b7b72ee 10947 genlmsg_end(msg, hdr);
04a773ad 10948
68eb5503 10949 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10950 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10951 return;
10952
10953 nla_put_failure:
10954 genlmsg_cancel(msg, hdr);
10955 nlmsg_free(msg);
10956}
10957
947add36
JB		 10958void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10959 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10960{
947add36 10961 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10962 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10963 struct sk_buff *msg;
10964 void *hdr;
10965
947add36
JB		 10966 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10967 return;
10968
10969 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10970
c93b5e71
JC		 10971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10972 if (!msg)
10973 return;
10974
10975 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10976 if (!hdr) {
10977 nlmsg_free(msg);
10978 return;
10979 }
10980
9360ffd1 10981 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10982 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10983 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10984 (ie_len && ie &&
10985 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10986 goto nla_put_failure;
c93b5e71 10987
3b7b72ee 10988 genlmsg_end(msg, hdr);
c93b5e71 10989
68eb5503 10990 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10991 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10992 return;
10993
10994 nla_put_failure:
10995 genlmsg_cancel(msg, hdr);
10996 nlmsg_free(msg);
10997}
947add36 10998EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10999
a3b8b056
JM		 11000void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11001 struct net_device *netdev, const u8 *addr,
11002 enum nl80211_key_type key_type, int key_id,
e6d6e342 11003 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11004{
11005 struct sk_buff *msg;
11006 void *hdr;
11007
e6d6e342 11008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11009 if (!msg)
11010 return;
11011
11012 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11013 if (!hdr) {
11014 nlmsg_free(msg);
11015 return;
11016 }
11017
9360ffd1
DM		 11018 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11019 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11020 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11021 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11022 (key_id != -1 &&
11023 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11024 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11025 goto nla_put_failure;
a3b8b056 11026
3b7b72ee 11027 genlmsg_end(msg, hdr);
a3b8b056 11028
68eb5503 11029 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11030 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11031 return;
11032
11033 nla_put_failure:
11034 genlmsg_cancel(msg, hdr);
11035 nlmsg_free(msg);
11036}
11037
6bad8766
LR		 11038void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11039 struct ieee80211_channel *channel_before,
11040 struct ieee80211_channel *channel_after)
11041{
11042 struct sk_buff *msg;
11043 void *hdr;
11044 struct nlattr *nl_freq;
11045
fd2120ca 11046 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11047 if (!msg)
11048 return;
11049
11050 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11051 if (!hdr) {
11052 nlmsg_free(msg);
11053 return;
11054 }
11055
11056 /*
11057 * Since we are applying the beacon hint to a wiphy we know its
11058 * wiphy_idx is valid
11059 */
9360ffd1
DM		 11060 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11061 goto nla_put_failure;
6bad8766
LR		 11062
11063 /* Before */
11064 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11065 if (!nl_freq)
11066 goto nla_put_failure;
cdc89b97 11067 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11068 goto nla_put_failure;
11069 nla_nest_end(msg, nl_freq);
11070
11071 /* After */
11072 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11073 if (!nl_freq)
11074 goto nla_put_failure;
cdc89b97 11075 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11076 goto nla_put_failure;
11077 nla_nest_end(msg, nl_freq);
11078
3b7b72ee 11079 genlmsg_end(msg, hdr);
6bad8766 11080
463d0183 11081 rcu_read_lock();
68eb5503 11082 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11083 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11084 rcu_read_unlock();
6bad8766
LR		 11085
11086 return;
11087
11088nla_put_failure:
11089 genlmsg_cancel(msg, hdr);
11090 nlmsg_free(msg);
11091}
11092
9588bbd5
JM		 11093static void nl80211_send_remain_on_chan_event(
11094 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11095 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11096 struct ieee80211_channel *chan,
9588bbd5
JM		 11097 unsigned int duration, gfp_t gfp)
11098{
11099 struct sk_buff *msg;
11100 void *hdr;
11101
11102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11103 if (!msg)
11104 return;
11105
11106 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11107 if (!hdr) {
11108 nlmsg_free(msg);
11109 return;
11110 }
11111
9360ffd1 11112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11113 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11114 wdev->netdev->ifindex)) ||
00f53350 11115 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11116 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11117 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11118 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11119 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11120 goto nla_put_failure;
9588bbd5 11121
9360ffd1
DM		 11122 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11123 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11124 goto nla_put_failure;
9588bbd5 11125
3b7b72ee 11126 genlmsg_end(msg, hdr);
9588bbd5 11127
68eb5503 11128 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11129 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11130 return;
11131
11132 nla_put_failure:
11133 genlmsg_cancel(msg, hdr);
11134 nlmsg_free(msg);
11135}
11136
947add36
JB		 11137void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11138 struct ieee80211_channel *chan,
11139 unsigned int duration, gfp_t gfp)
9588bbd5 11140{
947add36 11141 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11142 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11143
11144 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11145 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11146 rdev, wdev, cookie, chan,
42d97a59 11147 duration, gfp);
9588bbd5 11148}
947add36 11149EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11150
947add36
JB		 11151void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11152 struct ieee80211_channel *chan,
11153 gfp_t gfp)
9588bbd5 11154{
947add36 11155 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11156 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11157
11158 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11159 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11160 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11161}
947add36 11162EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11163
947add36
JB		 11164void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11165 struct station_info *sinfo, gfp_t gfp)
98b62183 11166{
947add36 11167 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11168 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11169 struct sk_buff *msg;
11170
947add36
JB		 11171 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11172
58050fce 11173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11174 if (!msg)
11175 return;
11176
66266b3a
JL		 11177 if (nl80211_send_station(msg, 0, 0, 0,
11178 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11179 nlmsg_free(msg);
11180 return;
11181 }
11182
68eb5503 11183 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11184 NL80211_MCGRP_MLME, gfp);
98b62183 11185}
947add36 11186EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11187
947add36 11188void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11189{
947add36 11190 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11191 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11192 struct sk_buff *msg;
11193 void *hdr;
11194
947add36
JB		 11195 trace_cfg80211_del_sta(dev, mac_addr);
11196
58050fce 11197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11198 if (!msg)
11199 return;
11200
11201 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11202 if (!hdr) {
11203 nlmsg_free(msg);
11204 return;
11205 }
11206
9360ffd1
DM		 11207 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11208 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11209 goto nla_put_failure;
ec15e68b 11210
3b7b72ee 11211 genlmsg_end(msg, hdr);
ec15e68b 11212
68eb5503 11213 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11214 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11215 return;
11216
11217 nla_put_failure:
11218 genlmsg_cancel(msg, hdr);
11219 nlmsg_free(msg);
11220}
947add36 11221EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11222
947add36
JB		 11223void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11224 enum nl80211_connect_failed_reason reason,
11225 gfp_t gfp)
ed44a951 11226{
947add36 11227 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11228 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11229 struct sk_buff *msg;
11230 void *hdr;
11231
11232 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11233 if (!msg)
11234 return;
11235
11236 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11237 if (!hdr) {
11238 nlmsg_free(msg);
11239 return;
11240 }
11241
11242 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11243 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11244 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11245 goto nla_put_failure;
11246
11247 genlmsg_end(msg, hdr);
11248
68eb5503 11249 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11250 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11251 return;
11252
11253 nla_put_failure:
11254 genlmsg_cancel(msg, hdr);
11255 nlmsg_free(msg);
11256}
947add36 11257EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11258
b92ab5d8
JB		 11259static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11260 const u8 *addr, gfp_t gfp)
28946da7
JB		 11261{
11262 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11263 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11264 struct sk_buff *msg;
11265 void *hdr;
15e47304 11266 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11267
15e47304 11268 if (!nlportid)
28946da7
JB		 11269 return false;
11270
11271 msg = nlmsg_new(100, gfp);
11272 if (!msg)
11273 return true;
11274
b92ab5d8 11275 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11276 if (!hdr) {
11277 nlmsg_free(msg);
11278 return true;
11279 }
11280
9360ffd1
DM		 11281 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11282 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11283 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11284 goto nla_put_failure;
28946da7 11285
9c90a9f6 11286 genlmsg_end(msg, hdr);
15e47304 11287 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11288 return true;
11289
11290 nla_put_failure:
11291 genlmsg_cancel(msg, hdr);
11292 nlmsg_free(msg);
11293 return true;
11294}
11295
947add36
JB		 11296bool cfg80211_rx_spurious_frame(struct net_device *dev,
11297 const u8 *addr, gfp_t gfp)
b92ab5d8 11298{
947add36
JB		 11299 struct wireless_dev *wdev = dev->ieee80211_ptr;
11300 bool ret;
11301
11302 trace_cfg80211_rx_spurious_frame(dev, addr);
11303
11304 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11305 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11306 trace_cfg80211_return_bool(false);
11307 return false;
11308 }
11309 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11310 addr, gfp);
11311 trace_cfg80211_return_bool(ret);
11312 return ret;
b92ab5d8 11313}
947add36 11314EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11315
947add36
JB		 11316bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11317 const u8 *addr, gfp_t gfp)
b92ab5d8 11318{
947add36
JB		 11319 struct wireless_dev *wdev = dev->ieee80211_ptr;
11320 bool ret;
11321
11322 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11323
11324 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11325 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11326 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11327 trace_cfg80211_return_bool(false);
11328 return false;
11329 }
11330 ret = __nl80211_unexpected_frame(dev,
11331 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11332 addr, gfp);
11333 trace_cfg80211_return_bool(ret);
11334 return ret;
b92ab5d8 11335}
947add36 11336EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11337
2e161f78 11338int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11339 struct wireless_dev *wdev, u32 nlportid,
804483e9 11340 int freq, int sig_dbm,
19504cf5 11341 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11342{
71bbc994 11343 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11344 struct sk_buff *msg;
11345 void *hdr;
026331c4
JM		 11346
11347 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11348 if (!msg)
11349 return -ENOMEM;
11350
2e161f78 11351 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11352 if (!hdr) {
11353 nlmsg_free(msg);
11354 return -ENOMEM;
11355 }
11356
9360ffd1 11357 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11358 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11359 netdev->ifindex)) ||
a838490b 11360 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11361 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11362 (sig_dbm &&
11363 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11364 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11365 (flags &&
11366 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11367 goto nla_put_failure;
026331c4 11368
3b7b72ee 11369 genlmsg_end(msg, hdr);
026331c4 11370
15e47304 11371 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11372
11373 nla_put_failure:
11374 genlmsg_cancel(msg, hdr);
11375 nlmsg_free(msg);
11376 return -ENOBUFS;
11377}
11378
947add36
JB		 11379void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11380 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11381{
947add36 11382 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11383 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11384 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11385 struct sk_buff *msg;
11386 void *hdr;
11387
947add36
JB		 11388 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11389
026331c4
JM		 11390 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11391 if (!msg)
11392 return;
11393
2e161f78 11394 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11395 if (!hdr) {
11396 nlmsg_free(msg);
11397 return;
11398 }
11399
9360ffd1 11400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11401 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11402 netdev->ifindex)) ||
a838490b 11403 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11404 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11405 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11406 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11407 goto nla_put_failure;
026331c4 11408
3b7b72ee 11409 genlmsg_end(msg, hdr);
026331c4 11410
68eb5503 11411 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11412 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11413 return;
11414
11415 nla_put_failure:
11416 genlmsg_cancel(msg, hdr);
11417 nlmsg_free(msg);
11418}
947add36 11419EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11420
947add36
JB		 11421void cfg80211_cqm_rssi_notify(struct net_device *dev,
11422 enum nl80211_cqm_rssi_threshold_event rssi_event,
11423 gfp_t gfp)
d6dc1a38 11424{
947add36
JB		 11425 struct wireless_dev *wdev = dev->ieee80211_ptr;
11426 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11427 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11428 struct sk_buff *msg;
11429 struct nlattr *pinfoattr;
11430 void *hdr;
11431
947add36
JB		 11432 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11433
58050fce 11434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11435 if (!msg)
11436 return;
11437
11438 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11439 if (!hdr) {
11440 nlmsg_free(msg);
11441 return;
11442 }
11443
9360ffd1 11444 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11445 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11446 goto nla_put_failure;
d6dc1a38
JO		 11447
11448 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11449 if (!pinfoattr)
11450 goto nla_put_failure;
11451
9360ffd1
DM		 11452 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11453 rssi_event))
11454 goto nla_put_failure;
d6dc1a38
JO		 11455
11456 nla_nest_end(msg, pinfoattr);
11457
3b7b72ee 11458 genlmsg_end(msg, hdr);
d6dc1a38 11459
68eb5503 11460 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11461 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11462 return;
11463
11464 nla_put_failure:
11465 genlmsg_cancel(msg, hdr);
11466 nlmsg_free(msg);
11467}
947add36 11468EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11469
947add36
JB		 11470static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11471 struct net_device *netdev, const u8 *bssid,
11472 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11473{
11474 struct sk_buff *msg;
11475 struct nlattr *rekey_attr;
11476 void *hdr;
11477
58050fce 11478 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11479 if (!msg)
11480 return;
11481
11482 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11483 if (!hdr) {
11484 nlmsg_free(msg);
11485 return;
11486 }
11487
9360ffd1
DM		 11488 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11489 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11490 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11491 goto nla_put_failure;
e5497d76
JB		 11492
11493 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11494 if (!rekey_attr)
11495 goto nla_put_failure;
11496
9360ffd1
DM		 11497 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11498 NL80211_REPLAY_CTR_LEN, replay_ctr))
11499 goto nla_put_failure;
e5497d76
JB		 11500
11501 nla_nest_end(msg, rekey_attr);
11502
3b7b72ee 11503 genlmsg_end(msg, hdr);
e5497d76 11504
68eb5503 11505 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11506 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11507 return;
11508
11509 nla_put_failure:
11510 genlmsg_cancel(msg, hdr);
11511 nlmsg_free(msg);
11512}
11513
947add36
JB		 11514void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11515 const u8 *replay_ctr, gfp_t gfp)
11516{
11517 struct wireless_dev *wdev = dev->ieee80211_ptr;
11518 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11519 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11520
11521 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11522 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11523}
11524EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11525
11526static void
11527nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11528 struct net_device *netdev, int index,
11529 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11530{
11531 struct sk_buff *msg;
11532 struct nlattr *attr;
11533 void *hdr;
11534
58050fce 11535 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11536 if (!msg)
11537 return;
11538
11539 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11540 if (!hdr) {
11541 nlmsg_free(msg);
11542 return;
11543 }
11544
9360ffd1
DM		 11545 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11546 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11547 goto nla_put_failure;
c9df56b4
JM		 11548
11549 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11550 if (!attr)
11551 goto nla_put_failure;
11552
9360ffd1
DM		 11553 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11554 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11555 (preauth &&
11556 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11557 goto nla_put_failure;
c9df56b4
JM		 11558
11559 nla_nest_end(msg, attr);
11560
3b7b72ee 11561 genlmsg_end(msg, hdr);
c9df56b4 11562
68eb5503 11563 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11564 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11565 return;
11566
11567 nla_put_failure:
11568 genlmsg_cancel(msg, hdr);
11569 nlmsg_free(msg);
11570}
11571
947add36
JB		 11572void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11573 const u8 *bssid, bool preauth, gfp_t gfp)
11574{
11575 struct wireless_dev *wdev = dev->ieee80211_ptr;
11576 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11577 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11578
11579 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11580 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11581}
11582EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11583
11584static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11585 struct net_device *netdev,
11586 struct cfg80211_chan_def *chandef,
11587 gfp_t gfp)
5314526b
TP		 11588{
11589 struct sk_buff *msg;
11590 void *hdr;
11591
58050fce 11592 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11593 if (!msg)
11594 return;
11595
11596 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11597 if (!hdr) {
11598 nlmsg_free(msg);
11599 return;
11600 }
11601
683b6d3b
JB		 11602 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11603 goto nla_put_failure;
11604
11605 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11606 goto nla_put_failure;
5314526b
TP		 11607
11608 genlmsg_end(msg, hdr);
11609
68eb5503 11610 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11611 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11612 return;
11613
11614 nla_put_failure:
11615 genlmsg_cancel(msg, hdr);
11616 nlmsg_free(msg);
11617}
11618
947add36
JB		 11619void cfg80211_ch_switch_notify(struct net_device *dev,
11620 struct cfg80211_chan_def *chandef)
84f10708 11621{
947add36
JB		 11622 struct wireless_dev *wdev = dev->ieee80211_ptr;
11623 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11624 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11625
e487eaeb 11626 ASSERT_WDEV_LOCK(wdev);
947add36 11627
e487eaeb 11628 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11629
11630 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11631 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11632 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11633 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11634 return;
947add36 11635
9e0e2961 11636 wdev->chandef = *chandef;
96f55f12 11637 wdev->preset_chandef = *chandef;
947add36 11638 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11639}
11640EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11641
11642void cfg80211_cqm_txe_notify(struct net_device *dev,
11643 const u8 *peer, u32 num_packets,
11644 u32 rate, u32 intvl, gfp_t gfp)
11645{
11646 struct wireless_dev *wdev = dev->ieee80211_ptr;
11647 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11648 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11649 struct sk_buff *msg;
11650 struct nlattr *pinfoattr;
11651 void *hdr;
11652
11653 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11654 if (!msg)
11655 return;
11656
11657 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11658 if (!hdr) {
11659 nlmsg_free(msg);
11660 return;
11661 }
11662
11663 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11664 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11665 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11666 goto nla_put_failure;
11667
11668 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11669 if (!pinfoattr)
11670 goto nla_put_failure;
11671
11672 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11673 goto nla_put_failure;
11674
11675 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11676 goto nla_put_failure;
11677
11678 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11679 goto nla_put_failure;
11680
11681 nla_nest_end(msg, pinfoattr);
11682
11683 genlmsg_end(msg, hdr);
11684
68eb5503 11685 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11686 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11687 return;
11688
11689 nla_put_failure:
11690 genlmsg_cancel(msg, hdr);
11691 nlmsg_free(msg);
11692}
947add36 11693EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11694
04f39047
SW		 11695void
11696nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11697 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11698 enum nl80211_radar_event event,
11699 struct net_device *netdev, gfp_t gfp)
11700{
11701 struct sk_buff *msg;
11702 void *hdr;
11703
11704 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11705 if (!msg)
11706 return;
11707
11708 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11709 if (!hdr) {
11710 nlmsg_free(msg);
11711 return;
11712 }
11713
11714 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11715 goto nla_put_failure;
11716
11717 /* NOP and radar events don't need a netdev parameter */
11718 if (netdev) {
11719 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11720
11721 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11722 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11723 goto nla_put_failure;
11724 }
11725
11726 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11727 goto nla_put_failure;
11728
11729 if (nl80211_send_chandef(msg, chandef))
11730 goto nla_put_failure;
11731
9c90a9f6 11732 genlmsg_end(msg, hdr);
04f39047 11733
68eb5503 11734 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11735 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11736 return;
11737
11738 nla_put_failure:
11739 genlmsg_cancel(msg, hdr);
11740 nlmsg_free(msg);
11741}
11742
947add36
JB		 11743void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11744 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11745{
947add36
JB		 11746 struct wireless_dev *wdev = dev->ieee80211_ptr;
11747 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11748 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11749 struct sk_buff *msg;
11750 struct nlattr *pinfoattr;
11751 void *hdr;
11752
947add36
JB		 11753 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11754
58050fce 11755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11756 if (!msg)
11757 return;
11758
11759 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11760 if (!hdr) {
11761 nlmsg_free(msg);
11762 return;
11763 }
11764
9360ffd1 11765 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11766 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11767 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11768 goto nla_put_failure;
c063dbf5
JB		 11769
11770 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11771 if (!pinfoattr)
11772 goto nla_put_failure;
11773
9360ffd1
DM		 11774 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11775 goto nla_put_failure;
c063dbf5
JB		 11776
11777 nla_nest_end(msg, pinfoattr);
11778
3b7b72ee 11779 genlmsg_end(msg, hdr);
c063dbf5 11780
68eb5503 11781 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11782 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11783 return;
11784
11785 nla_put_failure:
11786 genlmsg_cancel(msg, hdr);
11787 nlmsg_free(msg);
11788}
947add36 11789EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11790
7f6cf311
JB		 11791void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11792 u64 cookie, bool acked, gfp_t gfp)
11793{
11794 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11795 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11796 struct sk_buff *msg;
11797 void *hdr;
7f6cf311 11798
4ee3e063
BL		 11799 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11800
58050fce 11801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11802
7f6cf311
JB		 11803 if (!msg)
11804 return;
11805
11806 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11807 if (!hdr) {
11808 nlmsg_free(msg);
11809 return;
11810 }
11811
9360ffd1
DM		 11812 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11813 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11814 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11815 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11816 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11817 goto nla_put_failure;
7f6cf311 11818
9c90a9f6 11819 genlmsg_end(msg, hdr);
7f6cf311 11820
68eb5503 11821 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11822 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11823 return;
11824
11825 nla_put_failure:
11826 genlmsg_cancel(msg, hdr);
11827 nlmsg_free(msg);
11828}
11829EXPORT_SYMBOL(cfg80211_probe_status);
11830
5e760230
JB		 11831void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11832 const u8 *frame, size_t len,
37c73b5f 11833 int freq, int sig_dbm)
5e760230 11834{
f26cbf40 11835 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11836 struct sk_buff *msg;
11837 void *hdr;
37c73b5f 11838 struct cfg80211_beacon_registration *reg;
5e760230 11839
4ee3e063
BL		 11840 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11841
37c73b5f
BG		 11842 spin_lock_bh(&rdev->beacon_registrations_lock);
11843 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11844 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11845 if (!msg) {
11846 spin_unlock_bh(&rdev->beacon_registrations_lock);
11847 return;
11848 }
5e760230 11849
37c73b5f
BG		 11850 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11851 if (!hdr)
11852 goto nla_put_failure;
5e760230 11853
37c73b5f
BG		 11854 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11855 (freq &&
11856 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11857 (sig_dbm &&
11858 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11859 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11860 goto nla_put_failure;
5e760230 11861
37c73b5f 11862 genlmsg_end(msg, hdr);
5e760230 11863
37c73b5f
BG		 11864 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11865 }
11866 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11867 return;
11868
11869 nla_put_failure:
37c73b5f
BG		 11870 spin_unlock_bh(&rdev->beacon_registrations_lock);
11871 if (hdr)
11872 genlmsg_cancel(msg, hdr);
5e760230
JB		 11873 nlmsg_free(msg);
11874}
11875EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11876
cd8f7cb4
JB		 11877#ifdef CONFIG_PM
11878void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11879 struct cfg80211_wowlan_wakeup *wakeup,
11880 gfp_t gfp)
11881{
f26cbf40 11882 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11883 struct sk_buff *msg;
11884 void *hdr;
9c90a9f6 11885 int size = 200;
cd8f7cb4
JB		 11886
11887 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11888
11889 if (wakeup)
11890 size += wakeup->packet_present_len;
11891
11892 msg = nlmsg_new(size, gfp);
11893 if (!msg)
11894 return;
11895
11896 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11897 if (!hdr)
11898 goto free_msg;
11899
11900 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11901 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11902 goto free_msg;
11903
11904 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11905 wdev->netdev->ifindex))
11906 goto free_msg;
11907
11908 if (wakeup) {
11909 struct nlattr *reasons;
11910
11911 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11912 if (!reasons)
11913 goto free_msg;
cd8f7cb4
JB		 11914
11915 if (wakeup->disconnect &&
11916 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11917 goto free_msg;
11918 if (wakeup->magic_pkt &&
11919 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11920 goto free_msg;
11921 if (wakeup->gtk_rekey_failure &&
11922 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11923 goto free_msg;
11924 if (wakeup->eap_identity_req &&
11925 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11926 goto free_msg;
11927 if (wakeup->four_way_handshake &&
11928 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11929 goto free_msg;
11930 if (wakeup->rfkill_release &&
11931 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11932 goto free_msg;
11933
11934 if (wakeup->pattern_idx >= 0 &&
11935 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11936 wakeup->pattern_idx))
11937 goto free_msg;
11938
ae917c9f
JB		 11939 if (wakeup->tcp_match &&
11940 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11941 goto free_msg;
2a0e047e 11942
ae917c9f
JB		 11943 if (wakeup->tcp_connlost &&
11944 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11945 goto free_msg;
2a0e047e 11946
ae917c9f
JB		 11947 if (wakeup->tcp_nomoretokens &&
11948 nla_put_flag(msg,
11949 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11950 goto free_msg;
2a0e047e 11951
cd8f7cb4
JB		 11952 if (wakeup->packet) {
11953 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11954 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11955
11956 if (!wakeup->packet_80211) {
11957 pkt_attr =
11958 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11959 len_attr =
11960 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11961 }
11962
11963 if (wakeup->packet_len &&
11964 nla_put_u32(msg, len_attr, wakeup->packet_len))
11965 goto free_msg;
11966
11967 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11968 wakeup->packet))
11969 goto free_msg;
11970 }
11971
11972 nla_nest_end(msg, reasons);
11973 }
11974
9c90a9f6 11975 genlmsg_end(msg, hdr);
cd8f7cb4 11976
68eb5503 11977 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11978 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11979 return;
11980
11981 free_msg:
11982 nlmsg_free(msg);
11983}
11984EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11985#endif
11986
3475b094
JM		 11987void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11988 enum nl80211_tdls_operation oper,
11989 u16 reason_code, gfp_t gfp)
11990{
11991 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11992 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11993 struct sk_buff *msg;
11994 void *hdr;
3475b094
JM		 11995
11996 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11997 reason_code);
11998
11999 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12000 if (!msg)
12001 return;
12002
12003 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12004 if (!hdr) {
12005 nlmsg_free(msg);
12006 return;
12007 }
12008
12009 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12010 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12011 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12012 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12013 (reason_code > 0 &&
12014 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12015 goto nla_put_failure;
12016
9c90a9f6 12017 genlmsg_end(msg, hdr);
3475b094 12018
68eb5503 12019 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12020 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12021 return;
12022
12023 nla_put_failure:
12024 genlmsg_cancel(msg, hdr);
12025 nlmsg_free(msg);
12026}
12027EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12028
026331c4
JM		 12029static int nl80211_netlink_notify(struct notifier_block * nb,
12030 unsigned long state,
12031 void *_notify)
12032{
12033 struct netlink_notify *notify = _notify;
12034 struct cfg80211_registered_device *rdev;
12035 struct wireless_dev *wdev;
37c73b5f 12036 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12037
12038 if (state != NETLINK_URELEASE)
12039 return NOTIFY_DONE;
12040
12041 rcu_read_lock();
12042
5e760230 12043 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 12044 bool schedule_destroy_work = false;
12045
12046 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12047 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12048
78f22b6a
JB		 12049 if (wdev->owner_nlportid == notify->portid)
12050 schedule_destroy_work = true;
12051 }
12052
37c73b5f
BG		 12053 spin_lock_bh(&rdev->beacon_registrations_lock);
12054 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12055 list) {
12056 if (reg->nlportid == notify->portid) {
12057 list_del(&reg->list);
12058 kfree(reg);
12059 break;
12060 }
12061 }
12062 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12063
12064 if (schedule_destroy_work) {
12065 struct cfg80211_iface_destroy *destroy;
12066
12067 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12068 if (destroy) {
12069 destroy->nlportid = notify->portid;
12070 spin_lock(&rdev->destroy_list_lock);
12071 list_add(&destroy->list, &rdev->destroy_list);
12072 spin_unlock(&rdev->destroy_list_lock);
12073 schedule_work(&rdev->destroy_work);
12074 }
12075 }
5e760230 12076 }
026331c4
JM		 12077
12078 rcu_read_unlock();
12079
6784c7db 12080 return NOTIFY_OK;
026331c4
JM		 12081}
12082
12083static struct notifier_block nl80211_netlink_notifier = {
12084 .notifier_call = nl80211_netlink_notify,
12085};
12086
355199e0
JM		 12087void cfg80211_ft_event(struct net_device *netdev,
12088 struct cfg80211_ft_event_params *ft_event)
12089{
12090 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12091 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12092 struct sk_buff *msg;
12093 void *hdr;
355199e0
JM		 12094
12095 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12096
12097 if (!ft_event->target_ap)
12098 return;
12099
12100 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12101 if (!msg)
12102 return;
12103
12104 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12105 if (!hdr)
12106 goto out;
355199e0 12107
ae917c9f
JB		 12108 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12109 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12110 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12111 goto out;
355199e0 12112
ae917c9f
JB		 12113 if (ft_event->ies &&
12114 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12115 goto out;
12116 if (ft_event->ric_ies &&
12117 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12118 ft_event->ric_ies))
12119 goto out;
355199e0 12120
9c90a9f6 12121 genlmsg_end(msg, hdr);
355199e0 12122
68eb5503 12123 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12124 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12125 return;
12126 out:
12127 nlmsg_free(msg);
355199e0
JM		 12128}
12129EXPORT_SYMBOL(cfg80211_ft_event);
12130
5de17984
AS		 12131void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12132{
12133 struct cfg80211_registered_device *rdev;
12134 struct sk_buff *msg;
12135 void *hdr;
12136 u32 nlportid;
12137
f26cbf40 12138 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12139 if (!rdev->crit_proto_nlportid)
12140 return;
12141
12142 nlportid = rdev->crit_proto_nlportid;
12143 rdev->crit_proto_nlportid = 0;
12144
12145 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12146 if (!msg)
12147 return;
12148
12149 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12150 if (!hdr)
12151 goto nla_put_failure;
12152
12153 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12154 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12155 goto nla_put_failure;
12156
12157 genlmsg_end(msg, hdr);
12158
12159 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12160 return;
12161
12162 nla_put_failure:
12163 if (hdr)
12164 genlmsg_cancel(msg, hdr);
12165 nlmsg_free(msg);
12166
12167}
12168EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12169
348baf0e
JB		 12170void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12171{
12172 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12173 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12174 struct sk_buff *msg;
12175 void *hdr;
12176
12177 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12178 if (!msg)
12179 return;
12180
12181 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12182 if (!hdr)
12183 goto out;
12184
12185 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12186 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12187 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12188 goto out;
12189
12190 genlmsg_end(msg, hdr);
12191
12192 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12193 NL80211_MCGRP_MLME, GFP_KERNEL);
12194 return;
12195 out:
12196 nlmsg_free(msg);
12197}
12198
55682965
JB		 12199/* initialisation/exit functions */
12200
12201int nl80211_init(void)
12202{
0d63cbb5 12203 int err;
55682965 12204
2a94fe48
JB		 12205 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12206 nl80211_mcgrps);
55682965
JB		 12207 if (err)
12208 return err;
12209
026331c4
JM		 12210 err = netlink_register_notifier(&nl80211_netlink_notifier);
12211 if (err)
12212 goto err_out;
12213
55682965
JB		 12214 return 0;
12215 err_out:
12216 genl_unregister_family(&nl80211_fam);
12217 return err;
12218}
12219
12220void nl80211_exit(void)
12221{
026331c4 12222 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12223 genl_unregister_family(&nl80211_fam);
12224}
Linux 6.x block layer and io_uring tree(s)