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nl80211: Allow declaring RRM-related features
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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 },
55682965
JB		 229
230 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 233
e007b857
EP		 234 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
235 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 236
b9454e83 237 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 238 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
239 .len = WLAN_MAX_KEY_LEN },
240 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
241 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
242 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 243 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 244 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 245
246 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
247 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
248 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
249 .len = IEEE80211_MAX_DATA_LEN },
250 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 252 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
253 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
254 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
255 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
256 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 257 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 258 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 259 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 260 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 261 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 262 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 263
b2e1b302
LR		 264 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
265 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
266
9f1ba906
JM		 267 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 270 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
271 .len = NL80211_MAX_SUPP_RATES },
50b12f59 272 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 273
24bdd9f4 274 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 275 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 276
6c739419 277 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 278
279 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
280 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
281 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 282 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
283 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 284
285 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
286 .len = IEEE80211_MAX_SSID_LEN },
287 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
288 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 289 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 290 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 291 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 292 [NL80211_ATTR_STA_FLAGS2] = {
293 .len = sizeof(struct nl80211_sta_flag_update),
294 },
3f77316c 295 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 296 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
297 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 298 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
299 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
300 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 301 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 302 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 303 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
304 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 305 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
306 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 307 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 308 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
309 .len = IEEE80211_MAX_DATA_LEN },
310 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 311 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 312 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 313 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 314 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 315 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
316 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 317 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 318 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
319 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 320 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 321 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 322 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 323 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 324 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 325 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 326 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 327 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 328 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 329 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
330 .len = IEEE80211_MAX_DATA_LEN },
331 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
332 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 333 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 334 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 335 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 336 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
340 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 341 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 342 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 343 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
344 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 345 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 346 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
347 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
348 .len = NL80211_HT_CAPABILITY_LEN
349 },
1d9d9213 350 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 351 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 352 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 353 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 354 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 355 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 356 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 357 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 358 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
359 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 360 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
361 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 362 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
363 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 364 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 365 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
366 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
367 .len = NL80211_VHT_CAPABILITY_LEN,
368 },
355199e0
JM		 369 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
370 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
371 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 372 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 373 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
374 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
375 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 376 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
377 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 378 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
379 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 380 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 381 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 382 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
383 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 385 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
386 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 387 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
388 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 389 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 390 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 391 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
55682965
JB		 392};
393
e31b8213 394/* policy for the key attributes */
b54452b0 395static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 396 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 397 [NL80211_KEY_IDX] = { .type = NLA_U8 },
398 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 399 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 400 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
401 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 402 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 403 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
404};
405
406/* policy for the key default flags */
407static const struct nla_policy
408nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
409 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
410 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 411};
412
ff1b6e69
JB		 413/* policy for WoWLAN attributes */
414static const struct nla_policy
415nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
416 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 420 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
421 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
422 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
423 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 424 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
425};
426
427static const struct nla_policy
428nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
429 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
430 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
431 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
432 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
433 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
434 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
435 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
436 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
437 },
438 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
439 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
440 },
441 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
442 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
443 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 444};
445
be29b99a
AK		 446/* policy for coalesce rule attributes */
447static const struct nla_policy
448nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
449 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
450 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
451 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
452};
453
e5497d76
JB		 454/* policy for GTK rekey offload attributes */
455static const struct nla_policy
456nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
457 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
458 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
459 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
460};
461
a1f1c21c
LC		 462static const struct nla_policy
463nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 464 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 465 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 466 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 467};
468
97990a06
JB		 469static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
470 struct netlink_callback *cb,
471 struct cfg80211_registered_device **rdev,
472 struct wireless_dev **wdev)
a043897a 473{
97990a06 474 int err;
a043897a 475
97990a06 476 rtnl_lock();
a043897a 477
97990a06
JB		 478 if (!cb->args[0]) {
479 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
480 nl80211_fam.attrbuf, nl80211_fam.maxattr,
481 nl80211_policy);
482 if (err)
483 goto out_unlock;
67748893 484
97990a06
JB		 485 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
486 nl80211_fam.attrbuf);
487 if (IS_ERR(*wdev)) {
488 err = PTR_ERR(*wdev);
489 goto out_unlock;
490 }
f26cbf40 491 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 492 /* 0 is the first index - add 1 to parse only once */
493 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 494 cb->args[1] = (*wdev)->identifier;
495 } else {
c319d50b
JB		 496 /* subtract the 1 again here */
497 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 498 struct wireless_dev *tmp;
67748893 499
97990a06
JB		 500 if (!wiphy) {
501 err = -ENODEV;
502 goto out_unlock;
503 }
f26cbf40 504 *rdev = wiphy_to_rdev(wiphy);
97990a06 505 *wdev = NULL;
67748893 506
97990a06
JB		 507 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
508 if (tmp->identifier == cb->args[1]) {
509 *wdev = tmp;
510 break;
511 }
512 }
67748893 513
97990a06
JB		 514 if (!*wdev) {
515 err = -ENODEV;
516 goto out_unlock;
517 }
67748893
JB		 518 }
519
67748893 520 return 0;
97990a06 521 out_unlock:
67748893
JB		 522 rtnl_unlock();
523 return err;
524}
525
97990a06 526static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 527{
67748893
JB		 528 rtnl_unlock();
529}
530
f4a11bb0
JB		 531/* IE validation */
532static bool is_valid_ie_attr(const struct nlattr *attr)
533{
534 const u8 *pos;
535 int len;
536
537 if (!attr)
538 return true;
539
540 pos = nla_data(attr);
541 len = nla_len(attr);
542
543 while (len) {
544 u8 elemlen;
545
546 if (len < 2)
547 return false;
548 len -= 2;
549
550 elemlen = pos[1];
551 if (elemlen > len)
552 return false;
553
554 len -= elemlen;
555 pos += 2 + elemlen;
556 }
557
558 return true;
559}
560
55682965 561/* message building helper */
15e47304 562static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 563 int flags, u8 cmd)
564{
565 /* since there is no private header just add the generic one */
15e47304 566 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 567}
568
5dab3b8a 569static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 570 struct ieee80211_channel *chan,
571 bool large)
5dab3b8a 572{
ea077c1c
RL		 573 /* Some channels must be completely excluded from the
574 * list to protect old user-space tools from breaking
575 */
576 if (!large && chan->flags &
577 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
578 return 0;
579
9360ffd1
DM		 580 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
581 chan->center_freq))
582 goto nla_put_failure;
5dab3b8a 583
9360ffd1
DM		 584 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
585 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
586 goto nla_put_failure;
8fe02e16
LR		 587 if (chan->flags & IEEE80211_CHAN_NO_IR) {
588 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
589 goto nla_put_failure;
590 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
591 goto nla_put_failure;
592 }
cdc89b97
JB		 593 if (chan->flags & IEEE80211_CHAN_RADAR) {
594 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
595 goto nla_put_failure;
596 if (large) {
597 u32 time;
598
599 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
600
601 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
602 chan->dfs_state))
603 goto nla_put_failure;
604 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
605 time))
606 goto nla_put_failure;
089027e5
JD		 607 if (nla_put_u32(msg,
608 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
609 chan->dfs_cac_ms))
610 goto nla_put_failure;
cdc89b97
JB		 611 }
612 }
5dab3b8a 613
fe1abafd
JB		 614 if (large) {
615 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
616 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
617 goto nla_put_failure;
618 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
619 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
620 goto nla_put_failure;
621 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
622 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
623 goto nla_put_failure;
624 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
626 goto nla_put_failure;
570dbde1
DS		 627 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
632 goto nla_put_failure;
ea077c1c
RL		 633 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
635 goto nla_put_failure;
636 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
638 goto nla_put_failure;
fe1abafd
JB		 639 }
640
9360ffd1
DM		 641 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
642 DBM_TO_MBM(chan->max_power)))
643 goto nla_put_failure;
5dab3b8a
LR		 644
645 return 0;
646
647 nla_put_failure:
648 return -ENOBUFS;
649}
650
55682965
JB		 651/* netlink command implementations */
652
b9454e83
JB		 653struct key_parse {
654 struct key_params p;
655 int idx;
e31b8213 656 int type;
b9454e83 657 bool def, defmgmt;
dbd2fd65 658 bool def_uni, def_multi;
b9454e83
JB		 659};
660
661static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
662{
663 struct nlattr *tb[NL80211_KEY_MAX + 1];
664 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
665 nl80211_key_policy);
666 if (err)
667 return err;
668
669 k->def = !!tb[NL80211_KEY_DEFAULT];
670 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
671
dbd2fd65
JB		 672 if (k->def) {
673 k->def_uni = true;
674 k->def_multi = true;
675 }
676 if (k->defmgmt)
677 k->def_multi = true;
678
b9454e83
JB		 679 if (tb[NL80211_KEY_IDX])
680 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
681
682 if (tb[NL80211_KEY_DATA]) {
683 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
684 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
685 }
686
687 if (tb[NL80211_KEY_SEQ]) {
688 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
689 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
690 }
691
692 if (tb[NL80211_KEY_CIPHER])
693 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
694
e31b8213
JB		 695 if (tb[NL80211_KEY_TYPE]) {
696 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
697 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
698 return -EINVAL;
699 }
700
dbd2fd65
JB		 701 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
702 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 703 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
704 tb[NL80211_KEY_DEFAULT_TYPES],
705 nl80211_key_default_policy);
dbd2fd65
JB		 706 if (err)
707 return err;
708
709 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
710 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
711 }
712
b9454e83
JB		 713 return 0;
714}
715
716static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
717{
718 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
719 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
720 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
721 }
722
723 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
724 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
725 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
726 }
727
728 if (info->attrs[NL80211_ATTR_KEY_IDX])
729 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
730
731 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
732 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
733
734 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
735 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
736
dbd2fd65
JB		 737 if (k->def) {
738 k->def_uni = true;
739 k->def_multi = true;
740 }
741 if (k->defmgmt)
742 k->def_multi = true;
743
e31b8213
JB		 744 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
745 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
746 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
747 return -EINVAL;
748 }
749
dbd2fd65
JB		 750 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
751 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
752 int err = nla_parse_nested(
753 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
754 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
755 nl80211_key_default_policy);
756 if (err)
757 return err;
758
759 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
760 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
761 }
762
b9454e83
JB		 763 return 0;
764}
765
766static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
767{
768 int err;
769
770 memset(k, 0, sizeof(*k));
771 k->idx = -1;
e31b8213 772 k->type = -1;
b9454e83
JB		 773
774 if (info->attrs[NL80211_ATTR_KEY])
775 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
776 else
777 err = nl80211_parse_key_old(info, k);
778
779 if (err)
780 return err;
781
782 if (k->def && k->defmgmt)
783 return -EINVAL;
784
dbd2fd65
JB		 785 if (k->defmgmt) {
786 if (k->def_uni || !k->def_multi)
787 return -EINVAL;
788 }
789
b9454e83
JB		 790 if (k->idx != -1) {
791 if (k->defmgmt) {
792 if (k->idx < 4 || k->idx > 5)
793 return -EINVAL;
794 } else if (k->def) {
795 if (k->idx < 0 || k->idx > 3)
796 return -EINVAL;
797 } else {
798 if (k->idx < 0 || k->idx > 5)
799 return -EINVAL;
800 }
801 }
802
803 return 0;
804}
805
fffd0934
JB		 806static struct cfg80211_cached_keys *
807nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 808 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 809{
810 struct key_parse parse;
811 struct nlattr *key;
812 struct cfg80211_cached_keys *result;
813 int rem, err, def = 0;
814
815 result = kzalloc(sizeof(*result), GFP_KERNEL);
816 if (!result)
817 return ERR_PTR(-ENOMEM);
818
819 result->def = -1;
820 result->defmgmt = -1;
821
822 nla_for_each_nested(key, keys, rem) {
823 memset(&parse, 0, sizeof(parse));
824 parse.idx = -1;
825
826 err = nl80211_parse_key_new(key, &parse);
827 if (err)
828 goto error;
829 err = -EINVAL;
830 if (!parse.p.key)
831 goto error;
832 if (parse.idx < 0 || parse.idx > 4)
833 goto error;
834 if (parse.def) {
835 if (def)
836 goto error;
837 def = 1;
838 result->def = parse.idx;
dbd2fd65
JB		 839 if (!parse.def_uni || !parse.def_multi)
840 goto error;
fffd0934
JB		 841 } else if (parse.defmgmt)
842 goto error;
843 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 844 parse.idx, false, NULL);
fffd0934
JB		 845 if (err)
846 goto error;
847 result->params[parse.idx].cipher = parse.p.cipher;
848 result->params[parse.idx].key_len = parse.p.key_len;
849 result->params[parse.idx].key = result->data[parse.idx];
850 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 851
852 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
853 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
854 if (no_ht)
855 *no_ht = true;
856 }
fffd0934
JB		 857 }
858
859 return result;
860 error:
861 kfree(result);
862 return ERR_PTR(err);
863}
864
865static int nl80211_key_allowed(struct wireless_dev *wdev)
866{
867 ASSERT_WDEV_LOCK(wdev);
868
fffd0934
JB		 869 switch (wdev->iftype) {
870 case NL80211_IFTYPE_AP:
871 case NL80211_IFTYPE_AP_VLAN:
074ac8df 872 case NL80211_IFTYPE_P2P_GO:
ff973af7 873 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 874 break;
875 case NL80211_IFTYPE_ADHOC:
fffd0934 876 case NL80211_IFTYPE_STATION:
074ac8df 877 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 878 if (!wdev->current_bss)
fffd0934
JB		 879 return -ENOLINK;
880 break;
881 default:
882 return -EINVAL;
883 }
884
885 return 0;
886}
887
664834de
JM		 888static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
889 struct nlattr *tb)
890{
891 struct ieee80211_channel *chan;
892
893 if (tb == NULL)
894 return NULL;
895 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
896 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
897 return NULL;
898 return chan;
899}
900
7527a782
JB		 901static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
902{
903 struct nlattr *nl_modes = nla_nest_start(msg, attr);
904 int i;
905
906 if (!nl_modes)
907 goto nla_put_failure;
908
909 i = 0;
910 while (ifmodes) {
9360ffd1
DM		 911 if ((ifmodes & 1) && nla_put_flag(msg, i))
912 goto nla_put_failure;
7527a782
JB		 913 ifmodes >>= 1;
914 i++;
915 }
916
917 nla_nest_end(msg, nl_modes);
918 return 0;
919
920nla_put_failure:
921 return -ENOBUFS;
922}
923
924static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 925 struct sk_buff *msg,
926 bool large)
7527a782
JB		 927{
928 struct nlattr *nl_combis;
929 int i, j;
930
931 nl_combis = nla_nest_start(msg,
932 NL80211_ATTR_INTERFACE_COMBINATIONS);
933 if (!nl_combis)
934 goto nla_put_failure;
935
936 for (i = 0; i < wiphy->n_iface_combinations; i++) {
937 const struct ieee80211_iface_combination *c;
938 struct nlattr *nl_combi, *nl_limits;
939
940 c = &wiphy->iface_combinations[i];
941
942 nl_combi = nla_nest_start(msg, i + 1);
943 if (!nl_combi)
944 goto nla_put_failure;
945
946 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
947 if (!nl_limits)
948 goto nla_put_failure;
949
950 for (j = 0; j < c->n_limits; j++) {
951 struct nlattr *nl_limit;
952
953 nl_limit = nla_nest_start(msg, j + 1);
954 if (!nl_limit)
955 goto nla_put_failure;
9360ffd1
DM		 956 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
957 c->limits[j].max))
958 goto nla_put_failure;
7527a782
JB		 959 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
960 c->limits[j].types))
961 goto nla_put_failure;
962 nla_nest_end(msg, nl_limit);
963 }
964
965 nla_nest_end(msg, nl_limits);
966
9360ffd1
DM		 967 if (c->beacon_int_infra_match &&
968 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
969 goto nla_put_failure;
970 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
971 c->num_different_channels) ||
972 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
973 c->max_interfaces))
974 goto nla_put_failure;
cdc89b97 975 if (large &&
8c48b50a
FF		 976 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
977 c->radar_detect_widths) ||
978 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
979 c->radar_detect_regions)))
cdc89b97 980 goto nla_put_failure;
7527a782
JB		 981
982 nla_nest_end(msg, nl_combi);
983 }
984
985 nla_nest_end(msg, nl_combis);
986
987 return 0;
988nla_put_failure:
989 return -ENOBUFS;
990}
991
3713b4e3 992#ifdef CONFIG_PM
b56cf720
JB		 993static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
994 struct sk_buff *msg)
995{
964dc9e2 996 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 997 struct nlattr *nl_tcp;
998
999 if (!tcp)
1000 return 0;
1001
1002 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1003 if (!nl_tcp)
1004 return -ENOBUFS;
1005
1006 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1007 tcp->data_payload_max))
1008 return -ENOBUFS;
1009
1010 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1011 tcp->data_payload_max))
1012 return -ENOBUFS;
1013
1014 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1015 return -ENOBUFS;
1016
1017 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1018 sizeof(*tcp->tok), tcp->tok))
1019 return -ENOBUFS;
1020
1021 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1022 tcp->data_interval_max))
1023 return -ENOBUFS;
1024
1025 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1026 tcp->wake_payload_max))
1027 return -ENOBUFS;
1028
1029 nla_nest_end(msg, nl_tcp);
1030 return 0;
1031}
1032
3713b4e3 1033static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1034 struct cfg80211_registered_device *rdev,
b56cf720 1035 bool large)
55682965 1036{
3713b4e3 1037 struct nlattr *nl_wowlan;
55682965 1038
1b8ec87a 1039 if (!rdev->wiphy.wowlan)
3713b4e3 1040 return 0;
55682965 1041
3713b4e3
JB		 1042 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1043 if (!nl_wowlan)
1044 return -ENOBUFS;
9360ffd1 1045
1b8ec87a 1046 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1047 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1048 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1049 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1050 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1051 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1052 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1060 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1062 return -ENOBUFS;
9360ffd1 1063
1b8ec87a 1064 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1065 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1066 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1067 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1068 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1069 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1070 };
9360ffd1 1071
3713b4e3
JB		 1072 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1073 sizeof(pat), &pat))
1074 return -ENOBUFS;
1075 }
9360ffd1 1076
1b8ec87a 1077 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1078 return -ENOBUFS;
1079
3713b4e3 1080 nla_nest_end(msg, nl_wowlan);
9360ffd1 1081
3713b4e3
JB		 1082 return 0;
1083}
1084#endif
9360ffd1 1085
be29b99a 1086static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1087 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1088{
1089 struct nl80211_coalesce_rule_support rule;
1090
1b8ec87a 1091 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1092 return 0;
1093
1b8ec87a
ZG		 1094 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1095 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1096 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1097 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1098 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1099 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1100
1101 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1102 return -ENOBUFS;
1103
1104 return 0;
1105}
1106
3713b4e3
JB		 1107static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1108 struct ieee80211_supported_band *sband)
1109{
1110 struct nlattr *nl_rates, *nl_rate;
1111 struct ieee80211_rate *rate;
1112 int i;
87bbbe22 1113
3713b4e3
JB		 1114 /* add HT info */
1115 if (sband->ht_cap.ht_supported &&
1116 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1117 sizeof(sband->ht_cap.mcs),
1118 &sband->ht_cap.mcs) ||
1119 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1120 sband->ht_cap.cap) ||
1121 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1122 sband->ht_cap.ampdu_factor) ||
1123 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1124 sband->ht_cap.ampdu_density)))
1125 return -ENOBUFS;
afe0cbf8 1126
3713b4e3
JB		 1127 /* add VHT info */
1128 if (sband->vht_cap.vht_supported &&
1129 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1130 sizeof(sband->vht_cap.vht_mcs),
1131 &sband->vht_cap.vht_mcs) ||
1132 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1133 sband->vht_cap.cap)))
1134 return -ENOBUFS;
f59ac048 1135
3713b4e3
JB		 1136 /* add bitrates */
1137 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1138 if (!nl_rates)
1139 return -ENOBUFS;
ee688b00 1140
3713b4e3
JB		 1141 for (i = 0; i < sband->n_bitrates; i++) {
1142 nl_rate = nla_nest_start(msg, i);
1143 if (!nl_rate)
1144 return -ENOBUFS;
ee688b00 1145
3713b4e3
JB		 1146 rate = &sband->bitrates[i];
1147 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1148 rate->bitrate))
1149 return -ENOBUFS;
1150 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1151 nla_put_flag(msg,
1152 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1153 return -ENOBUFS;
ee688b00 1154
3713b4e3
JB		 1155 nla_nest_end(msg, nl_rate);
1156 }
d51626df 1157
3713b4e3 1158 nla_nest_end(msg, nl_rates);
bf0c111e 1159
3713b4e3
JB		 1160 return 0;
1161}
ee688b00 1162
3713b4e3
JB		 1163static int
1164nl80211_send_mgmt_stypes(struct sk_buff *msg,
1165 const struct ieee80211_txrx_stypes *mgmt_stypes)
1166{
1167 u16 stypes;
1168 struct nlattr *nl_ftypes, *nl_ifs;
1169 enum nl80211_iftype ift;
1170 int i;
ee688b00 1171
3713b4e3
JB		 1172 if (!mgmt_stypes)
1173 return 0;
5dab3b8a 1174
3713b4e3
JB		 1175 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1176 if (!nl_ifs)
1177 return -ENOBUFS;
e2f367f2 1178
3713b4e3
JB		 1179 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1180 nl_ftypes = nla_nest_start(msg, ift);
1181 if (!nl_ftypes)
1182 return -ENOBUFS;
1183 i = 0;
1184 stypes = mgmt_stypes[ift].tx;
1185 while (stypes) {
1186 if ((stypes & 1) &&
1187 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1188 (i << 4) | IEEE80211_FTYPE_MGMT))
1189 return -ENOBUFS;
1190 stypes >>= 1;
1191 i++;
ee688b00 1192 }
3713b4e3
JB		 1193 nla_nest_end(msg, nl_ftypes);
1194 }
ee688b00 1195
3713b4e3 1196 nla_nest_end(msg, nl_ifs);
ee688b00 1197
3713b4e3
JB		 1198 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1199 if (!nl_ifs)
1200 return -ENOBUFS;
ee688b00 1201
3713b4e3
JB		 1202 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1203 nl_ftypes = nla_nest_start(msg, ift);
1204 if (!nl_ftypes)
1205 return -ENOBUFS;
1206 i = 0;
1207 stypes = mgmt_stypes[ift].rx;
1208 while (stypes) {
1209 if ((stypes & 1) &&
1210 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1211 (i << 4) | IEEE80211_FTYPE_MGMT))
1212 return -ENOBUFS;
1213 stypes >>= 1;
1214 i++;
1215 }
1216 nla_nest_end(msg, nl_ftypes);
1217 }
1218 nla_nest_end(msg, nl_ifs);
ee688b00 1219
3713b4e3
JB		 1220 return 0;
1221}
ee688b00 1222
86e8cf98
JB		 1223struct nl80211_dump_wiphy_state {
1224 s64 filter_wiphy;
1225 long start;
1226 long split_start, band_start, chan_start;
1227 bool split;
1228};
1229
1b8ec87a 1230static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1231 enum nl80211_commands cmd,
3713b4e3 1232 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1233 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1234{
1235 void *hdr;
1236 struct nlattr *nl_bands, *nl_band;
1237 struct nlattr *nl_freqs, *nl_freq;
1238 struct nlattr *nl_cmds;
1239 enum ieee80211_band band;
1240 struct ieee80211_channel *chan;
1241 int i;
1242 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1243 rdev->wiphy.mgmt_stypes;
fe1abafd 1244 u32 features;
ee688b00 1245
3bb20556 1246 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1247 if (!hdr)
1248 return -ENOBUFS;
ee688b00 1249
86e8cf98
JB		 1250 if (WARN_ON(!state))
1251 return -EINVAL;
ee688b00 1252
1b8ec87a 1253 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1254 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1255 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1256 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1257 cfg80211_rdev_list_generation))
8fdc621d
JB		 1258 goto nla_put_failure;
1259
3bb20556
JB		 1260 if (cmd != NL80211_CMD_NEW_WIPHY)
1261 goto finish;
1262
86e8cf98 1263 switch (state->split_start) {
3713b4e3
JB		 1264 case 0:
1265 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1266 rdev->wiphy.retry_short) ||
3713b4e3 1267 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1268 rdev->wiphy.retry_long) ||
3713b4e3 1269 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1270 rdev->wiphy.frag_threshold) ||
3713b4e3 1271 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1272 rdev->wiphy.rts_threshold) ||
3713b4e3 1273 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1274 rdev->wiphy.coverage_class) ||
3713b4e3 1275 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1276 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1277 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1278 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1279 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1280 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1281 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1282 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1283 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1284 rdev->wiphy.max_match_sets))
9360ffd1 1285 goto nla_put_failure;
3713b4e3 1286
1b8ec87a 1287 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1288 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1289 goto nla_put_failure;
1b8ec87a 1290 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1291 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1292 goto nla_put_failure;
1b8ec87a 1293 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1294 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1295 goto nla_put_failure;
1b8ec87a 1296 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1297 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1298 goto nla_put_failure;
1b8ec87a 1299 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1300 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1301 goto nla_put_failure;
1b8ec87a 1302 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1303 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1304 goto nla_put_failure;
86e8cf98
JB		 1305 state->split_start++;
1306 if (state->split)
3713b4e3
JB		 1307 break;
1308 case 1:
1309 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1310 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1311 rdev->wiphy.cipher_suites))
3713b4e3 1312 goto nla_put_failure;
4745fc09 1313
3713b4e3 1314 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1315 rdev->wiphy.max_num_pmkids))
3713b4e3 1316 goto nla_put_failure;
b23aa676 1317
1b8ec87a 1318 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1319 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1320 goto nla_put_failure;
b23aa676 1321
3713b4e3 1322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1323 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1324 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1325 rdev->wiphy.available_antennas_rx))
9360ffd1 1326 goto nla_put_failure;
b23aa676 1327
1b8ec87a 1328 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1329 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1330 rdev->wiphy.probe_resp_offload))
3713b4e3 1331 goto nla_put_failure;
8fdc621d 1332
1b8ec87a
ZG		 1333 if ((rdev->wiphy.available_antennas_tx ||
1334 rdev->wiphy.available_antennas_rx) &&
1335 rdev->ops->get_antenna) {
3713b4e3
JB		 1336 u32 tx_ant = 0, rx_ant = 0;
1337 int res;
1b8ec87a 1338 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1339 if (!res) {
1340 if (nla_put_u32(msg,
1341 NL80211_ATTR_WIPHY_ANTENNA_TX,
1342 tx_ant) ||
1343 nla_put_u32(msg,
1344 NL80211_ATTR_WIPHY_ANTENNA_RX,
1345 rx_ant))
1346 goto nla_put_failure;
1347 }
1348 }
a293911d 1349
86e8cf98
JB		 1350 state->split_start++;
1351 if (state->split)
3713b4e3
JB		 1352 break;
1353 case 2:
1354 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1355 rdev->wiphy.interface_modes))
3713b4e3 1356 goto nla_put_failure;
86e8cf98
JB		 1357 state->split_start++;
1358 if (state->split)
3713b4e3
JB		 1359 break;
1360 case 3:
1361 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1362 if (!nl_bands)
1363 goto nla_put_failure;
f7ca38df 1364
86e8cf98
JB		 1365 for (band = state->band_start;
1366 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1367 struct ieee80211_supported_band *sband;
2e161f78 1368
1b8ec87a 1369 sband = rdev->wiphy.bands[band];
2e161f78 1370
3713b4e3
JB		 1371 if (!sband)
1372 continue;
1373
1374 nl_band = nla_nest_start(msg, band);
1375 if (!nl_band)
2e161f78 1376 goto nla_put_failure;
3713b4e3 1377
86e8cf98 1378 switch (state->chan_start) {
3713b4e3
JB		 1379 case 0:
1380 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1381 goto nla_put_failure;
86e8cf98
JB		 1382 state->chan_start++;
1383 if (state->split)
3713b4e3
JB		 1384 break;
1385 default:
1386 /* add frequencies */
1387 nl_freqs = nla_nest_start(
1388 msg, NL80211_BAND_ATTR_FREQS);
1389 if (!nl_freqs)
1390 goto nla_put_failure;
1391
86e8cf98 1392 for (i = state->chan_start - 1;
3713b4e3
JB		 1393 i < sband->n_channels;
1394 i++) {
1395 nl_freq = nla_nest_start(msg, i);
1396 if (!nl_freq)
1397 goto nla_put_failure;
1398
1399 chan = &sband->channels[i];
1400
86e8cf98
JB		 1401 if (nl80211_msg_put_channel(
1402 msg, chan,
1403 state->split))
3713b4e3
JB		 1404 goto nla_put_failure;
1405
1406 nla_nest_end(msg, nl_freq);
86e8cf98 1407 if (state->split)
3713b4e3
JB		 1408 break;
1409 }
1410 if (i < sband->n_channels)
86e8cf98 1411 state->chan_start = i + 2;
3713b4e3 1412 else
86e8cf98 1413 state->chan_start = 0;
3713b4e3
JB		 1414 nla_nest_end(msg, nl_freqs);
1415 }
1416
1417 nla_nest_end(msg, nl_band);
1418
86e8cf98 1419 if (state->split) {
3713b4e3 1420 /* start again here */
86e8cf98 1421 if (state->chan_start)
3713b4e3
JB		 1422 band--;
1423 break;
2e161f78 1424 }
2e161f78 1425 }
3713b4e3 1426 nla_nest_end(msg, nl_bands);
2e161f78 1427
3713b4e3 1428 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1429 state->band_start = band + 1;
3713b4e3 1430 else
86e8cf98 1431 state->band_start = 0;
74b70a4e 1432
3713b4e3 1433 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1434 if (state->band_start == 0 && state->chan_start == 0)
1435 state->split_start++;
1436 if (state->split)
3713b4e3
JB		 1437 break;
1438 case 4:
1439 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1440 if (!nl_cmds)
2e161f78
JB		 1441 goto nla_put_failure;
1442
3713b4e3
JB		 1443 i = 0;
1444#define CMD(op, n) \
1445 do { \
1b8ec87a 1446 if (rdev->ops->op) { \
3713b4e3
JB		 1447 i++; \
1448 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1449 goto nla_put_failure; \
1450 } \
1451 } while (0)
1452
1453 CMD(add_virtual_intf, NEW_INTERFACE);
1454 CMD(change_virtual_intf, SET_INTERFACE);
1455 CMD(add_key, NEW_KEY);
1456 CMD(start_ap, START_AP);
1457 CMD(add_station, NEW_STATION);
1458 CMD(add_mpath, NEW_MPATH);
1459 CMD(update_mesh_config, SET_MESH_CONFIG);
1460 CMD(change_bss, SET_BSS);
1461 CMD(auth, AUTHENTICATE);
1462 CMD(assoc, ASSOCIATE);
1463 CMD(deauth, DEAUTHENTICATE);
1464 CMD(disassoc, DISASSOCIATE);
1465 CMD(join_ibss, JOIN_IBSS);
1466 CMD(join_mesh, JOIN_MESH);
1467 CMD(set_pmksa, SET_PMKSA);
1468 CMD(del_pmksa, DEL_PMKSA);
1469 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1470 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1471 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1472 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1473 CMD(mgmt_tx, FRAME);
1474 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1475 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1476 i++;
1477 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1478 goto nla_put_failure;
2e161f78 1479 }
1b8ec87a
ZG		 1480 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1481 rdev->ops->join_mesh) {
3713b4e3
JB		 1482 i++;
1483 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1484 goto nla_put_failure;
1485 }
1486 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1487 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1488 CMD(tdls_mgmt, TDLS_MGMT);
1489 CMD(tdls_oper, TDLS_OPER);
1490 }
1b8ec87a 1491 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1492 CMD(sched_scan_start, START_SCHED_SCAN);
1493 CMD(probe_client, PROBE_CLIENT);
1494 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1495 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1496 i++;
1497 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1498 goto nla_put_failure;
1499 }
1500 CMD(start_p2p_device, START_P2P_DEVICE);
1501 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1502#ifdef CONFIG_NL80211_TESTMODE
1503 CMD(testmode_cmd, TESTMODE);
1504#endif
86e8cf98 1505 if (state->split) {
5de17984
AS		 1506 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1507 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1508 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1509 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1510 CMD(set_qos_map, SET_QOS_MAP);
5de17984 1511 }
02df00eb 1512 /* add into the if now */
3713b4e3 1513#undef CMD
ff1b6e69 1514
1b8ec87a 1515 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1516 i++;
1517 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1518 goto nla_put_failure;
ff1b6e69
JB		 1519 }
1520
1b8ec87a 1521 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1522 i++;
1523 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1524 goto nla_put_failure;
1525 }
1526
1527 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1528 state->split_start++;
1529 if (state->split)
3713b4e3
JB		 1530 break;
1531 case 5:
1b8ec87a
ZG		 1532 if (rdev->ops->remain_on_channel &&
1533 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1534 nla_put_u32(msg,
1535 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1536 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1537 goto nla_put_failure;
1538
1b8ec87a 1539 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1540 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1541 goto nla_put_failure;
1542
1543 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1544 goto nla_put_failure;
86e8cf98
JB		 1545 state->split_start++;
1546 if (state->split)
3713b4e3
JB		 1547 break;
1548 case 6:
1549#ifdef CONFIG_PM
1b8ec87a 1550 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1551 goto nla_put_failure;
86e8cf98
JB		 1552 state->split_start++;
1553 if (state->split)
3713b4e3
JB		 1554 break;
1555#else
86e8cf98 1556 state->split_start++;
dfb89c56 1557#endif
3713b4e3
JB		 1558 case 7:
1559 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1560 rdev->wiphy.software_iftypes))
3713b4e3 1561 goto nla_put_failure;
ff1b6e69 1562
1b8ec87a 1563 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1564 state->split))
3713b4e3 1565 goto nla_put_failure;
7527a782 1566
86e8cf98
JB		 1567 state->split_start++;
1568 if (state->split)
3713b4e3
JB		 1569 break;
1570 case 8:
1b8ec87a 1571 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1572 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1573 rdev->wiphy.ap_sme_capa))
3713b4e3 1574 goto nla_put_failure;
7527a782 1575
1b8ec87a 1576 features = rdev->wiphy.features;
fe1abafd
JB		 1577 /*
1578 * We can only add the per-channel limit information if the
1579 * dump is split, otherwise it makes it too big. Therefore
1580 * only advertise it in that case.
1581 */
86e8cf98 1582 if (state->split)
fe1abafd
JB		 1583 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1584 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1585 goto nla_put_failure;
562a7480 1586
1b8ec87a 1587 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1588 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1589 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1590 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1591 goto nla_put_failure;
1f074bd8 1592
1b8ec87a
ZG		 1593 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1594 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1595 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1596 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1597 goto nla_put_failure;
7e7c8926 1598
3713b4e3
JB		 1599 /*
1600 * Any information below this point is only available to
1601 * applications that can deal with it being split. This
1602 * helps ensure that newly added capabilities don't break
1603 * older tools by overrunning their buffers.
1604 *
1605 * We still increment split_start so that in the split
1606 * case we'll continue with more data in the next round,
1607 * but break unconditionally so unsplit data stops here.
1608 */
86e8cf98 1609 state->split_start++;
3713b4e3
JB		 1610 break;
1611 case 9:
1b8ec87a 1612 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1613 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1614 rdev->wiphy.extended_capabilities_len,
1615 rdev->wiphy.extended_capabilities) ||
fe1abafd 1616 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1617 rdev->wiphy.extended_capabilities_len,
1618 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1619 goto nla_put_failure;
a50df0c4 1620
1b8ec87a 1621 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1622 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1623 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1624 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1625 goto nla_put_failure;
1626
be29b99a
AK		 1627 state->split_start++;
1628 break;
1629 case 10:
1b8ec87a 1630 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1631 goto nla_put_failure;
1632
1b8ec87a 1633 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1634 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1635 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1636 goto nla_put_failure;
b43504cf 1637
1b8ec87a 1638 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1639 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1640 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1641 goto nla_put_failure;
1642
ad7e718c
JB		 1643 state->split_start++;
1644 break;
1645 case 11:
1b8ec87a 1646 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1647 const struct nl80211_vendor_cmd_info *info;
1648 struct nlattr *nested;
1649
1650 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1651 if (!nested)
1652 goto nla_put_failure;
1653
1b8ec87a
ZG		 1654 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1655 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1656 if (nla_put(msg, i + 1, sizeof(*info), info))
1657 goto nla_put_failure;
1658 }
1659 nla_nest_end(msg, nested);
1660 }
1661
1b8ec87a 1662 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1663 const struct nl80211_vendor_cmd_info *info;
1664 struct nlattr *nested;
ad7e718c 1665
567ffc35
JB		 1666 nested = nla_nest_start(msg,
1667 NL80211_ATTR_VENDOR_EVENTS);
1668 if (!nested)
ad7e718c 1669 goto nla_put_failure;
567ffc35 1670
1b8ec87a
ZG		 1671 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1672 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1673 if (nla_put(msg, i + 1, sizeof(*info), info))
1674 goto nla_put_failure;
1675 }
1676 nla_nest_end(msg, nested);
1677 }
9a774c78
AO		 1678 state->split_start++;
1679 break;
1680 case 12:
1681 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1682 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1683 rdev->wiphy.max_num_csa_counters))
1684 goto nla_put_failure;
01e0daa4 1685
3713b4e3 1686 /* done */
86e8cf98 1687 state->split_start = 0;
3713b4e3
JB		 1688 break;
1689 }
3bb20556 1690 finish:
55682965
JB		 1691 return genlmsg_end(msg, hdr);
1692
1693 nla_put_failure:
bc3ed28c
TG		 1694 genlmsg_cancel(msg, hdr);
1695 return -EMSGSIZE;
55682965
JB		 1696}
1697
86e8cf98
JB		 1698static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1699 struct netlink_callback *cb,
1700 struct nl80211_dump_wiphy_state *state)
1701{
1702 struct nlattr **tb = nl80211_fam.attrbuf;
1703 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1704 tb, nl80211_fam.maxattr, nl80211_policy);
1705 /* ignore parse errors for backward compatibility */
1706 if (ret)
1707 return 0;
1708
1709 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1710 if (tb[NL80211_ATTR_WIPHY])
1711 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1712 if (tb[NL80211_ATTR_WDEV])
1713 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1714 if (tb[NL80211_ATTR_IFINDEX]) {
1715 struct net_device *netdev;
1716 struct cfg80211_registered_device *rdev;
1717 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1718
7f2b8562 1719 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1720 if (!netdev)
1721 return -ENODEV;
1722 if (netdev->ieee80211_ptr) {
f26cbf40 1723 rdev = wiphy_to_rdev(
86e8cf98
JB		 1724 netdev->ieee80211_ptr->wiphy);
1725 state->filter_wiphy = rdev->wiphy_idx;
1726 }
86e8cf98
JB		 1727 }
1728
1729 return 0;
1730}
1731
55682965
JB		 1732static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1733{
645e77de 1734 int idx = 0, ret;
86e8cf98 1735 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1736 struct cfg80211_registered_device *rdev;
3a5a423b 1737
5fe231e8 1738 rtnl_lock();
86e8cf98
JB		 1739 if (!state) {
1740 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1741 if (!state) {
1742 rtnl_unlock();
86e8cf98 1743 return -ENOMEM;
3713b4e3 1744 }
86e8cf98
JB		 1745 state->filter_wiphy = -1;
1746 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1747 if (ret) {
1748 kfree(state);
1749 rtnl_unlock();
1750 return ret;
3713b4e3 1751 }
86e8cf98 1752 cb->args[0] = (long)state;
3713b4e3
JB		 1753 }
1754
1b8ec87a
ZG		 1755 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1756 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1757 continue;
86e8cf98 1758 if (++idx <= state->start)
55682965 1759 continue;
86e8cf98 1760 if (state->filter_wiphy != -1 &&
1b8ec87a 1761 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1762 continue;
1763 /* attempt to fit multiple wiphy data chunks into the skb */
1764 do {
3bb20556
JB		 1765 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1766 skb,
3713b4e3
JB		 1767 NETLINK_CB(cb->skb).portid,
1768 cb->nlh->nlmsg_seq,
86e8cf98 1769 NLM_F_MULTI, state);
3713b4e3
JB		 1770 if (ret < 0) {
1771 /*
1772 * If sending the wiphy data didn't fit (ENOBUFS
1773 * or EMSGSIZE returned), this SKB is still
1774 * empty (so it's not too big because another
1775 * wiphy dataset is already in the skb) and
1776 * we've not tried to adjust the dump allocation
1777 * yet ... then adjust the alloc size to be
1778 * bigger, and return 1 but with the empty skb.
1779 * This results in an empty message being RX'ed
1780 * in userspace, but that is ignored.
1781 *
1782 * We can then retry with the larger buffer.
1783 */
1784 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1785 !skb->len && !state->split &&
3713b4e3
JB		 1786 cb->min_dump_alloc < 4096) {
1787 cb->min_dump_alloc = 4096;
f12cb289 1788 state->split_start = 0;
d98cae64 1789 rtnl_unlock();
3713b4e3
JB		 1790 return 1;
1791 }
1792 idx--;
1793 break;
645e77de 1794 }
86e8cf98 1795 } while (state->split_start > 0);
3713b4e3 1796 break;
55682965 1797 }
5fe231e8 1798 rtnl_unlock();
55682965 1799
86e8cf98 1800 state->start = idx;
55682965
JB		 1801
1802 return skb->len;
1803}
1804
86e8cf98
JB		 1805static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1806{
1807 kfree((void *)cb->args[0]);
1808 return 0;
1809}
1810
55682965
JB		 1811static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1812{
1813 struct sk_buff *msg;
1b8ec87a 1814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1815 struct nl80211_dump_wiphy_state state = {};
55682965 1816
645e77de 1817 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1818 if (!msg)
4c476991 1819 return -ENOMEM;
55682965 1820
3bb20556
JB		 1821 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1822 info->snd_portid, info->snd_seq, 0,
86e8cf98 1823 &state) < 0) {
4c476991
JB		 1824 nlmsg_free(msg);
1825 return -ENOBUFS;
1826 }
55682965 1827
134e6375 1828 return genlmsg_reply(msg, info);
55682965
JB		 1829}
1830
31888487
JM		 1831static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1832 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1833 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1834 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1835 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1836 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1837};
1838
1839static int parse_txq_params(struct nlattr *tb[],
1840 struct ieee80211_txq_params *txq_params)
1841{
a3304b0a 1842 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1843 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1844 !tb[NL80211_TXQ_ATTR_AIFS])
1845 return -EINVAL;
1846
a3304b0a 1847 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1848 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1849 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1850 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1851 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1852
a3304b0a
JB		 1853 if (txq_params->ac >= NL80211_NUM_ACS)
1854 return -EINVAL;
1855
31888487
JM		 1856 return 0;
1857}
1858
f444de05
JB		 1859static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1860{
1861 /*
cc1d2806
JB		 1862 * You can only set the channel explicitly for WDS interfaces,
1863 * all others have their channel managed via their respective
1864 * "establish a connection" command (connect, join, ...)
1865 *
1866 * For AP/GO and mesh mode, the channel can be set with the
1867 * channel userspace API, but is only stored and passed to the
1868 * low-level driver when the AP starts or the mesh is joined.
1869 * This is for backward compatibility, userspace can also give
1870 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1871 *
1872 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1873 * whatever else is going on, so they have their own special
1874 * operation to set the monitor channel if possible.
f444de05
JB		 1875 */
1876 return !wdev ||
1877 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1878 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1879 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1880 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1881}
1882
683b6d3b
JB		 1883static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1884 struct genl_info *info,
1885 struct cfg80211_chan_def *chandef)
1886{
dbeca2ea 1887 u32 control_freq;
683b6d3b
JB		 1888
1889 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1890 return -EINVAL;
1891
1892 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1893
1894 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1895 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1896 chandef->center_freq1 = control_freq;
1897 chandef->center_freq2 = 0;
683b6d3b
JB		 1898
1899 /* Primary channel not allowed */
1900 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1901 return -EINVAL;
1902
3d9d1d66
JB		 1903 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1904 enum nl80211_channel_type chantype;
1905
1906 chantype = nla_get_u32(
1907 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1908
1909 switch (chantype) {
1910 case NL80211_CHAN_NO_HT:
1911 case NL80211_CHAN_HT20:
1912 case NL80211_CHAN_HT40PLUS:
1913 case NL80211_CHAN_HT40MINUS:
1914 cfg80211_chandef_create(chandef, chandef->chan,
1915 chantype);
1916 break;
1917 default:
1918 return -EINVAL;
1919 }
1920 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1921 chandef->width =
1922 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1923 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1924 chandef->center_freq1 =
1925 nla_get_u32(
1926 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1927 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1928 chandef->center_freq2 =
1929 nla_get_u32(
1930 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1931 }
1932
9f5e8f6e 1933 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1934 return -EINVAL;
1935
9f5e8f6e
JB		 1936 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1937 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1938 return -EINVAL;
1939
2f301ab2
SW		 1940 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1941 chandef->width == NL80211_CHAN_WIDTH_10) &&
1942 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1943 return -EINVAL;
1944
683b6d3b
JB		 1945 return 0;
1946}
1947
f444de05 1948static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1949 struct net_device *dev,
f444de05
JB		 1950 struct genl_info *info)
1951{
683b6d3b 1952 struct cfg80211_chan_def chandef;
f444de05 1953 int result;
e8c9bd5b 1954 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1955 struct wireless_dev *wdev = NULL;
e8c9bd5b 1956
e16821bc
JM		 1957 if (dev)
1958 wdev = dev->ieee80211_ptr;
f444de05
JB		 1959 if (!nl80211_can_set_dev_channel(wdev))
1960 return -EOPNOTSUPP;
e16821bc
JM		 1961 if (wdev)
1962 iftype = wdev->iftype;
f444de05 1963
683b6d3b
JB		 1964 result = nl80211_parse_chandef(rdev, info, &chandef);
1965 if (result)
1966 return result;
f444de05 1967
e8c9bd5b 1968 switch (iftype) {
aa430da4
JB		 1969 case NL80211_IFTYPE_AP:
1970 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1971 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1972 result = -EINVAL;
1973 break;
1974 }
e16821bc
JM		 1975 if (wdev->beacon_interval) {
1976 if (!dev || !rdev->ops->set_ap_chanwidth ||
1977 !(rdev->wiphy.features &
1978 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1979 result = -EBUSY;
1980 break;
1981 }
1982
1983 /* Only allow dynamic channel width changes */
1984 if (chandef.chan != wdev->preset_chandef.chan) {
1985 result = -EBUSY;
1986 break;
1987 }
1988 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1989 if (result)
1990 break;
1991 }
683b6d3b 1992 wdev->preset_chandef = chandef;
aa430da4
JB		 1993 result = 0;
1994 break;
cc1d2806 1995 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1996 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1997 break;
e8c9bd5b 1998 case NL80211_IFTYPE_MONITOR:
683b6d3b 1999 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2000 break;
aa430da4 2001 default:
e8c9bd5b 2002 result = -EINVAL;
f444de05 2003 }
f444de05
JB		 2004
2005 return result;
2006}
2007
2008static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2009{
4c476991
JB		 2010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2011 struct net_device *netdev = info->user_ptr[1];
f444de05 2012
e16821bc 2013 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2014}
2015
e8347eba
BJ		 2016static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2017{
43b19952
JB		 2018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2019 struct net_device *dev = info->user_ptr[1];
2020 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2021 const u8 *bssid;
e8347eba
BJ		 2022
2023 if (!info->attrs[NL80211_ATTR_MAC])
2024 return -EINVAL;
2025
43b19952
JB		 2026 if (netif_running(dev))
2027 return -EBUSY;
e8347eba 2028
43b19952
JB		 2029 if (!rdev->ops->set_wds_peer)
2030 return -EOPNOTSUPP;
e8347eba 2031
43b19952
JB		 2032 if (wdev->iftype != NL80211_IFTYPE_WDS)
2033 return -EOPNOTSUPP;
e8347eba
BJ		 2034
2035 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2036 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2037}
2038
2039
55682965
JB		 2040static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2041{
2042 struct cfg80211_registered_device *rdev;
f444de05
JB		 2043 struct net_device *netdev = NULL;
2044 struct wireless_dev *wdev;
a1e567c8 2045 int result = 0, rem_txq_params = 0;
31888487 2046 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2047 u32 changed;
2048 u8 retry_short = 0, retry_long = 0;
2049 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2050 u8 coverage_class = 0;
55682965 2051
5fe231e8
JB		 2052 ASSERT_RTNL();
2053
f444de05
JB		 2054 /*
2055 * Try to find the wiphy and netdev. Normally this
2056 * function shouldn't need the netdev, but this is
2057 * done for backward compatibility -- previously
2058 * setting the channel was done per wiphy, but now
2059 * it is per netdev. Previous userland like hostapd
2060 * also passed a netdev to set_wiphy, so that it is
2061 * possible to let that go to the right netdev!
2062 */
4bbf4d56 2063
f444de05
JB		 2064 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2065 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2066
7f2b8562 2067 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2068 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2069 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2070 else
f444de05 2071 netdev = NULL;
4bbf4d56
JB		 2072 }
2073
f444de05 2074 if (!netdev) {
878d9ec7
JB		 2075 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2076 info->attrs);
5fe231e8 2077 if (IS_ERR(rdev))
4c476991 2078 return PTR_ERR(rdev);
f444de05
JB		 2079 wdev = NULL;
2080 netdev = NULL;
2081 result = 0;
71fe96bf 2082 } else
f444de05 2083 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2084
2085 /*
2086 * end workaround code, by now the rdev is available
2087 * and locked, and wdev may or may not be NULL.
2088 */
4bbf4d56
JB		 2089
2090 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2091 result = cfg80211_dev_rename(
2092 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2093
4bbf4d56 2094 if (result)
7f2b8562 2095 return result;
31888487
JM		 2096
2097 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2098 struct ieee80211_txq_params txq_params;
2099 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2100
7f2b8562
YX		 2101 if (!rdev->ops->set_txq_params)
2102 return -EOPNOTSUPP;
31888487 2103
7f2b8562
YX		 2104 if (!netdev)
2105 return -EINVAL;
f70f01c2 2106
133a3ff2 2107 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2108 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2109 return -EINVAL;
133a3ff2 2110
7f2b8562
YX		 2111 if (!netif_running(netdev))
2112 return -ENETDOWN;
2b5f8b0b 2113
31888487
JM		 2114 nla_for_each_nested(nl_txq_params,
2115 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2116 rem_txq_params) {
ae811e21
JB		 2117 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2118 nla_data(nl_txq_params),
2119 nla_len(nl_txq_params),
2120 txq_params_policy);
2121 if (result)
2122 return result;
31888487
JM		 2123 result = parse_txq_params(tb, &txq_params);
2124 if (result)
7f2b8562 2125 return result;
31888487 2126
e35e4d28
HG		 2127 result = rdev_set_txq_params(rdev, netdev,
2128 &txq_params);
31888487 2129 if (result)
7f2b8562 2130 return result;
31888487
JM		 2131 }
2132 }
55682965 2133
72bdcf34 2134 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2135 result = __nl80211_set_channel(
2136 rdev,
2137 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2138 info);
72bdcf34 2139 if (result)
7f2b8562 2140 return result;
72bdcf34
JM		 2141 }
2142
98d2ff8b 2143 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2144 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2145 enum nl80211_tx_power_setting type;
2146 int idx, mbm = 0;
2147
c8442118
JB		 2148 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2149 txp_wdev = NULL;
2150
7f2b8562
YX		 2151 if (!rdev->ops->set_tx_power)
2152 return -EOPNOTSUPP;
98d2ff8b
JO		 2153
2154 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2155 type = nla_get_u32(info->attrs[idx]);
2156
2157 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2158 (type != NL80211_TX_POWER_AUTOMATIC))
2159 return -EINVAL;
98d2ff8b
JO		 2160
2161 if (type != NL80211_TX_POWER_AUTOMATIC) {
2162 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2163 mbm = nla_get_u32(info->attrs[idx]);
2164 }
2165
c8442118 2166 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2167 if (result)
7f2b8562 2168 return result;
98d2ff8b
JO		 2169 }
2170
afe0cbf8
BR		 2171 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2172 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2173 u32 tx_ant, rx_ant;
7f531e03
BR		 2174 if ((!rdev->wiphy.available_antennas_tx &&
2175 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2176 !rdev->ops->set_antenna)
2177 return -EOPNOTSUPP;
afe0cbf8
BR		 2178
2179 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2180 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2181
a7ffac95 2182 /* reject antenna configurations which don't match the
7f531e03
BR		 2183 * available antenna masks, except for the "all" mask */
2184 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2185 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2186 return -EINVAL;
a7ffac95 2187
7f531e03
BR		 2188 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2189 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2190
e35e4d28 2191 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2192 if (result)
7f2b8562 2193 return result;
afe0cbf8
BR		 2194 }
2195
b9a5f8ca
JM		 2196 changed = 0;
2197
2198 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2199 retry_short = nla_get_u8(
2200 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2201 if (retry_short == 0)
2202 return -EINVAL;
2203
b9a5f8ca
JM		 2204 changed |= WIPHY_PARAM_RETRY_SHORT;
2205 }
2206
2207 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2208 retry_long = nla_get_u8(
2209 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2210 if (retry_long == 0)
2211 return -EINVAL;
2212
b9a5f8ca
JM		 2213 changed |= WIPHY_PARAM_RETRY_LONG;
2214 }
2215
2216 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2217 frag_threshold = nla_get_u32(
2218 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2219 if (frag_threshold < 256)
2220 return -EINVAL;
2221
b9a5f8ca
JM		 2222 if (frag_threshold != (u32) -1) {
2223 /*
2224 * Fragments (apart from the last one) are required to
2225 * have even length. Make the fragmentation code
2226 * simpler by stripping LSB should someone try to use
2227 * odd threshold value.
2228 */
2229 frag_threshold &= ~0x1;
2230 }
2231 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2232 }
2233
2234 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2235 rts_threshold = nla_get_u32(
2236 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2237 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2238 }
2239
81077e82
LT		 2240 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2241 coverage_class = nla_get_u8(
2242 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2243 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2244 }
2245
b9a5f8ca
JM		 2246 if (changed) {
2247 u8 old_retry_short, old_retry_long;
2248 u32 old_frag_threshold, old_rts_threshold;
81077e82 2249 u8 old_coverage_class;
b9a5f8ca 2250
7f2b8562
YX		 2251 if (!rdev->ops->set_wiphy_params)
2252 return -EOPNOTSUPP;
b9a5f8ca
JM		 2253
2254 old_retry_short = rdev->wiphy.retry_short;
2255 old_retry_long = rdev->wiphy.retry_long;
2256 old_frag_threshold = rdev->wiphy.frag_threshold;
2257 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2258 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2259
2260 if (changed & WIPHY_PARAM_RETRY_SHORT)
2261 rdev->wiphy.retry_short = retry_short;
2262 if (changed & WIPHY_PARAM_RETRY_LONG)
2263 rdev->wiphy.retry_long = retry_long;
2264 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2265 rdev->wiphy.frag_threshold = frag_threshold;
2266 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2267 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2268 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2269 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2270
e35e4d28 2271 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2272 if (result) {
2273 rdev->wiphy.retry_short = old_retry_short;
2274 rdev->wiphy.retry_long = old_retry_long;
2275 rdev->wiphy.frag_threshold = old_frag_threshold;
2276 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2277 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2278 }
2279 }
7f2b8562 2280 return 0;
55682965
JB		 2281}
2282
71bbc994
JB		 2283static inline u64 wdev_id(struct wireless_dev *wdev)
2284{
2285 return (u64)wdev->identifier |
f26cbf40 2286 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2287}
55682965 2288
683b6d3b 2289static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2290 const struct cfg80211_chan_def *chandef)
683b6d3b 2291{
9f5e8f6e 2292 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2293
683b6d3b
JB		 2294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2295 chandef->chan->center_freq))
2296 return -ENOBUFS;
3d9d1d66
JB		 2297 switch (chandef->width) {
2298 case NL80211_CHAN_WIDTH_20_NOHT:
2299 case NL80211_CHAN_WIDTH_20:
2300 case NL80211_CHAN_WIDTH_40:
2301 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2302 cfg80211_get_chandef_type(chandef)))
2303 return -ENOBUFS;
2304 break;
2305 default:
2306 break;
2307 }
2308 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2309 return -ENOBUFS;
2310 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2311 return -ENOBUFS;
2312 if (chandef->center_freq2 &&
2313 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2314 return -ENOBUFS;
2315 return 0;
2316}
2317
15e47304 2318static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2319 struct cfg80211_registered_device *rdev,
72fb2abc 2320 struct wireless_dev *wdev)
55682965 2321{
72fb2abc 2322 struct net_device *dev = wdev->netdev;
55682965
JB		 2323 void *hdr;
2324
15e47304 2325 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2326 if (!hdr)
2327 return -1;
2328
72fb2abc
JB		 2329 if (dev &&
2330 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2331 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2332 goto nla_put_failure;
2333
2334 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2335 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2336 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2337 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2338 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2339 rdev->devlist_generation ^
2340 (cfg80211_rdev_list_generation << 2)))
2341 goto nla_put_failure;
f5ea9120 2342
5b7ccaf3 2343 if (rdev->ops->get_channel) {
683b6d3b
JB		 2344 int ret;
2345 struct cfg80211_chan_def chandef;
2346
2347 ret = rdev_get_channel(rdev, wdev, &chandef);
2348 if (ret == 0) {
2349 if (nl80211_send_chandef(msg, &chandef))
2350 goto nla_put_failure;
2351 }
d91df0e3
PF		 2352 }
2353
b84e7a05
AQ		 2354 if (wdev->ssid_len) {
2355 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2356 goto nla_put_failure;
2357 }
2358
55682965
JB		 2359 return genlmsg_end(msg, hdr);
2360
2361 nla_put_failure:
bc3ed28c
TG		 2362 genlmsg_cancel(msg, hdr);
2363 return -EMSGSIZE;
55682965
JB		 2364}
2365
2366static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2367{
2368 int wp_idx = 0;
2369 int if_idx = 0;
2370 int wp_start = cb->args[0];
2371 int if_start = cb->args[1];
f5ea9120 2372 struct cfg80211_registered_device *rdev;
55682965
JB		 2373 struct wireless_dev *wdev;
2374
5fe231e8 2375 rtnl_lock();
f5ea9120
JB		 2376 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2377 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2378 continue;
bba95fef
JB		 2379 if (wp_idx < wp_start) {
2380 wp_idx++;
55682965 2381 continue;
bba95fef 2382 }
55682965
JB		 2383 if_idx = 0;
2384
89a54e48 2385 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2386 if (if_idx < if_start) {
2387 if_idx++;
55682965 2388 continue;
bba95fef 2389 }
15e47304 2390 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2391 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2392 rdev, wdev) < 0) {
bba95fef
JB		 2393 goto out;
2394 }
2395 if_idx++;
55682965 2396 }
bba95fef
JB		 2397
2398 wp_idx++;
55682965 2399 }
bba95fef 2400 out:
5fe231e8 2401 rtnl_unlock();
55682965
JB		 2402
2403 cb->args[0] = wp_idx;
2404 cb->args[1] = if_idx;
2405
2406 return skb->len;
2407}
2408
2409static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2410{
2411 struct sk_buff *msg;
1b8ec87a 2412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2413 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2414
fd2120ca 2415 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2416 if (!msg)
4c476991 2417 return -ENOMEM;
55682965 2418
15e47304 2419 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2420 rdev, wdev) < 0) {
4c476991
JB		 2421 nlmsg_free(msg);
2422 return -ENOBUFS;
2423 }
55682965 2424
134e6375 2425 return genlmsg_reply(msg, info);
55682965
JB		 2426}
2427
66f7ac50
MW		 2428static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2429 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2430 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2431 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2432 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2433 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2434 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2435};
2436
2437static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2438{
2439 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2440 int flag;
2441
2442 *mntrflags = 0;
2443
2444 if (!nla)
2445 return -EINVAL;
2446
2447 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2448 nla, mntr_flags_policy))
2449 return -EINVAL;
2450
2451 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2452 if (flags[flag])
2453 *mntrflags |= (1<<flag);
2454
2455 return 0;
2456}
2457
9bc383de 2458static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2459 struct net_device *netdev, u8 use_4addr,
2460 enum nl80211_iftype iftype)
9bc383de 2461{
ad4bb6f8 2462 if (!use_4addr) {
f350a0a8 2463 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2464 return -EBUSY;
9bc383de 2465 return 0;
ad4bb6f8 2466 }
9bc383de
JB		 2467
2468 switch (iftype) {
2469 case NL80211_IFTYPE_AP_VLAN:
2470 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2471 return 0;
2472 break;
2473 case NL80211_IFTYPE_STATION:
2474 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2475 return 0;
2476 break;
2477 default:
2478 break;
2479 }
2480
2481 return -EOPNOTSUPP;
2482}
2483
55682965
JB		 2484static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2485{
4c476991 2486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2487 struct vif_params params;
e36d56b6 2488 int err;
04a773ad 2489 enum nl80211_iftype otype, ntype;
4c476991 2490 struct net_device *dev = info->user_ptr[1];
92ffe055 2491 u32 _flags, *flags = NULL;
ac7f9cfa 2492 bool change = false;
55682965 2493
2ec600d6
LCC		 2494 memset(&params, 0, sizeof(params));
2495
04a773ad 2496 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2497
723b038d 2498 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2499 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2500 if (otype != ntype)
ac7f9cfa 2501 change = true;
4c476991
JB		 2502 if (ntype > NL80211_IFTYPE_MAX)
2503 return -EINVAL;
723b038d
JB		 2504 }
2505
92ffe055 2506 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2507 struct wireless_dev *wdev = dev->ieee80211_ptr;
2508
4c476991
JB		 2509 if (ntype != NL80211_IFTYPE_MESH_POINT)
2510 return -EINVAL;
29cbe68c
JB		 2511 if (netif_running(dev))
2512 return -EBUSY;
2513
2514 wdev_lock(wdev);
2515 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2516 IEEE80211_MAX_MESH_ID_LEN);
2517 wdev->mesh_id_up_len =
2518 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2519 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2520 wdev->mesh_id_up_len);
2521 wdev_unlock(wdev);
2ec600d6
LCC		 2522 }
2523
8b787643
FF		 2524 if (info->attrs[NL80211_ATTR_4ADDR]) {
2525 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2526 change = true;
ad4bb6f8 2527 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2528 if (err)
4c476991 2529 return err;
8b787643
FF		 2530 } else {
2531 params.use_4addr = -1;
2532 }
2533
92ffe055 2534 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2535 if (ntype != NL80211_IFTYPE_MONITOR)
2536 return -EINVAL;
92ffe055
JB		 2537 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2538 &_flags);
ac7f9cfa 2539 if (err)
4c476991 2540 return err;
ac7f9cfa
JB		 2541
2542 flags = &_flags;
2543 change = true;
92ffe055 2544 }
3b85875a 2545
18003297 2546 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2547 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2548 return -EOPNOTSUPP;
2549
ac7f9cfa 2550 if (change)
3d54d255 2551 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2552 else
2553 err = 0;
60719ffd 2554
9bc383de
JB		 2555 if (!err && params.use_4addr != -1)
2556 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2557
55682965
JB		 2558 return err;
2559}
2560
2561static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2562{
4c476991 2563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2564 struct vif_params params;
84efbb84 2565 struct wireless_dev *wdev;
1c90f9d4 2566 struct sk_buff *msg;
55682965
JB		 2567 int err;
2568 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2569 u32 flags;
55682965 2570
78f22b6a
JB		 2571 /* to avoid failing a new interface creation due to pending removal */
2572 cfg80211_destroy_ifaces(rdev);
2573
2ec600d6
LCC		 2574 memset(&params, 0, sizeof(params));
2575
55682965
JB		 2576 if (!info->attrs[NL80211_ATTR_IFNAME])
2577 return -EINVAL;
2578
2579 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2580 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2581 if (type > NL80211_IFTYPE_MAX)
2582 return -EINVAL;
2583 }
2584
79c97e97 2585 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2586 !(rdev->wiphy.interface_modes & (1 << type)))
2587 return -EOPNOTSUPP;
55682965 2588
1c18f145
AS		 2589 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2590 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2591 ETH_ALEN);
2592 if (!is_valid_ether_addr(params.macaddr))
2593 return -EADDRNOTAVAIL;
2594 }
2595
9bc383de 2596 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2597 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2598 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2599 if (err)
4c476991 2600 return err;
9bc383de 2601 }
8b787643 2602
1c90f9d4
JB		 2603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2604 if (!msg)
2605 return -ENOMEM;
2606
66f7ac50
MW		 2607 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2608 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2609 &flags);
e057d3c3 2610
18003297 2611 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2612 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2613 return -EOPNOTSUPP;
2614
e35e4d28
HG		 2615 wdev = rdev_add_virtual_intf(rdev,
2616 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2617 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2618 if (IS_ERR(wdev)) {
2619 nlmsg_free(msg);
84efbb84 2620 return PTR_ERR(wdev);
1c90f9d4 2621 }
2ec600d6 2622
78f22b6a
JB		 2623 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2624 wdev->owner_nlportid = info->snd_portid;
2625
98104fde
JB		 2626 switch (type) {
2627 case NL80211_IFTYPE_MESH_POINT:
2628 if (!info->attrs[NL80211_ATTR_MESH_ID])
2629 break;
29cbe68c
JB		 2630 wdev_lock(wdev);
2631 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2632 IEEE80211_MAX_MESH_ID_LEN);
2633 wdev->mesh_id_up_len =
2634 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2635 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2636 wdev->mesh_id_up_len);
2637 wdev_unlock(wdev);
98104fde
JB		 2638 break;
2639 case NL80211_IFTYPE_P2P_DEVICE:
2640 /*
2641 * P2P Device doesn't have a netdev, so doesn't go
2642 * through the netdev notifier and must be added here
2643 */
2644 mutex_init(&wdev->mtx);
2645 INIT_LIST_HEAD(&wdev->event_list);
2646 spin_lock_init(&wdev->event_lock);
2647 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2648 spin_lock_init(&wdev->mgmt_registrations_lock);
2649
98104fde
JB		 2650 wdev->identifier = ++rdev->wdev_id;
2651 list_add_rcu(&wdev->list, &rdev->wdev_list);
2652 rdev->devlist_generation++;
98104fde
JB		 2653 break;
2654 default:
2655 break;
29cbe68c
JB		 2656 }
2657
15e47304 2658 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2659 rdev, wdev) < 0) {
2660 nlmsg_free(msg);
2661 return -ENOBUFS;
2662 }
2663
2664 return genlmsg_reply(msg, info);
55682965
JB		 2665}
2666
2667static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2668{
4c476991 2669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2670 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2671
4c476991
JB		 2672 if (!rdev->ops->del_virtual_intf)
2673 return -EOPNOTSUPP;
55682965 2674
84efbb84
JB		 2675 /*
2676 * If we remove a wireless device without a netdev then clear
2677 * user_ptr[1] so that nl80211_post_doit won't dereference it
2678 * to check if it needs to do dev_put(). Otherwise it crashes
2679 * since the wdev has been freed, unlike with a netdev where
2680 * we need the dev_put() for the netdev to really be freed.
2681 */
2682 if (!wdev->netdev)
2683 info->user_ptr[1] = NULL;
2684
e35e4d28 2685 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2686}
2687
1d9d9213
SW		 2688static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2689{
2690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2691 struct net_device *dev = info->user_ptr[1];
2692 u16 noack_map;
2693
2694 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2695 return -EINVAL;
2696
2697 if (!rdev->ops->set_noack_map)
2698 return -EOPNOTSUPP;
2699
2700 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2701
e35e4d28 2702 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2703}
2704
41ade00f
JB		 2705struct get_key_cookie {
2706 struct sk_buff *msg;
2707 int error;
b9454e83 2708 int idx;
41ade00f
JB		 2709};
2710
2711static void get_key_callback(void *c, struct key_params *params)
2712{
b9454e83 2713 struct nlattr *key;
41ade00f
JB		 2714 struct get_key_cookie *cookie = c;
2715
9360ffd1
DM		 2716 if ((params->key &&
2717 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2718 params->key_len, params->key)) ||
2719 (params->seq &&
2720 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2721 params->seq_len, params->seq)) ||
2722 (params->cipher &&
2723 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2724 params->cipher)))
2725 goto nla_put_failure;
41ade00f 2726
b9454e83
JB		 2727 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2728 if (!key)
2729 goto nla_put_failure;
2730
9360ffd1
DM		 2731 if ((params->key &&
2732 nla_put(cookie->msg, NL80211_KEY_DATA,
2733 params->key_len, params->key)) ||
2734 (params->seq &&
2735 nla_put(cookie->msg, NL80211_KEY_SEQ,
2736 params->seq_len, params->seq)) ||
2737 (params->cipher &&
2738 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2739 params->cipher)))
2740 goto nla_put_failure;
b9454e83 2741
9360ffd1
DM		 2742 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2743 goto nla_put_failure;
b9454e83
JB		 2744
2745 nla_nest_end(cookie->msg, key);
2746
41ade00f
JB		 2747 return;
2748 nla_put_failure:
2749 cookie->error = 1;
2750}
2751
2752static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2753{
4c476991 2754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2755 int err;
4c476991 2756 struct net_device *dev = info->user_ptr[1];
41ade00f 2757 u8 key_idx = 0;
e31b8213
JB		 2758 const u8 *mac_addr = NULL;
2759 bool pairwise;
41ade00f
JB		 2760 struct get_key_cookie cookie = {
2761 .error = 0,
2762 };
2763 void *hdr;
2764 struct sk_buff *msg;
2765
2766 if (info->attrs[NL80211_ATTR_KEY_IDX])
2767 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2768
3cfcf6ac 2769 if (key_idx > 5)
41ade00f
JB		 2770 return -EINVAL;
2771
2772 if (info->attrs[NL80211_ATTR_MAC])
2773 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2774
e31b8213
JB		 2775 pairwise = !!mac_addr;
2776 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2777 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2778 if (kt >= NUM_NL80211_KEYTYPES)
2779 return -EINVAL;
2780 if (kt != NL80211_KEYTYPE_GROUP &&
2781 kt != NL80211_KEYTYPE_PAIRWISE)
2782 return -EINVAL;
2783 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2784 }
2785
4c476991
JB		 2786 if (!rdev->ops->get_key)
2787 return -EOPNOTSUPP;
41ade00f 2788
fd2120ca 2789 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2790 if (!msg)
2791 return -ENOMEM;
41ade00f 2792
15e47304 2793 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2794 NL80211_CMD_NEW_KEY);
cb35fba3 2795 if (!hdr)
9fe271af 2796 goto nla_put_failure;
41ade00f
JB		 2797
2798 cookie.msg = msg;
b9454e83 2799 cookie.idx = key_idx;
41ade00f 2800
9360ffd1
DM		 2801 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2802 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2803 goto nla_put_failure;
2804 if (mac_addr &&
2805 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2806 goto nla_put_failure;
41ade00f 2807
e31b8213
JB		 2808 if (pairwise && mac_addr &&
2809 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2810 return -ENOENT;
2811
e35e4d28
HG		 2812 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2813 get_key_callback);
41ade00f
JB		 2814
2815 if (err)
6c95e2a2 2816 goto free_msg;
41ade00f
JB		 2817
2818 if (cookie.error)
2819 goto nla_put_failure;
2820
2821 genlmsg_end(msg, hdr);
4c476991 2822 return genlmsg_reply(msg, info);
41ade00f
JB		 2823
2824 nla_put_failure:
2825 err = -ENOBUFS;
6c95e2a2 2826 free_msg:
41ade00f 2827 nlmsg_free(msg);
41ade00f
JB		 2828 return err;
2829}
2830
2831static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2832{
4c476991 2833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2834 struct key_parse key;
41ade00f 2835 int err;
4c476991 2836 struct net_device *dev = info->user_ptr[1];
41ade00f 2837
b9454e83
JB		 2838 err = nl80211_parse_key(info, &key);
2839 if (err)
2840 return err;
41ade00f 2841
b9454e83 2842 if (key.idx < 0)
41ade00f
JB		 2843 return -EINVAL;
2844
b9454e83
JB		 2845 /* only support setting default key */
2846 if (!key.def && !key.defmgmt)
41ade00f
JB		 2847 return -EINVAL;
2848
dbd2fd65 2849 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2850
dbd2fd65
JB		 2851 if (key.def) {
2852 if (!rdev->ops->set_default_key) {
2853 err = -EOPNOTSUPP;
2854 goto out;
2855 }
41ade00f 2856
dbd2fd65
JB		 2857 err = nl80211_key_allowed(dev->ieee80211_ptr);
2858 if (err)
2859 goto out;
2860
e35e4d28 2861 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2862 key.def_uni, key.def_multi);
2863
2864 if (err)
2865 goto out;
fffd0934 2866
3d23e349 2867#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2868 dev->ieee80211_ptr->wext.default_key = key.idx;
2869#endif
2870 } else {
2871 if (key.def_uni || !key.def_multi) {
2872 err = -EINVAL;
2873 goto out;
2874 }
2875
2876 if (!rdev->ops->set_default_mgmt_key) {
2877 err = -EOPNOTSUPP;
2878 goto out;
2879 }
2880
2881 err = nl80211_key_allowed(dev->ieee80211_ptr);
2882 if (err)
2883 goto out;
2884
e35e4d28 2885 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2886 if (err)
2887 goto out;
2888
2889#ifdef CONFIG_CFG80211_WEXT
2890 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2891#endif
dbd2fd65
JB		 2892 }
2893
2894 out:
fffd0934 2895 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2896
41ade00f
JB		 2897 return err;
2898}
2899
2900static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2901{
4c476991 2902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2903 int err;
4c476991 2904 struct net_device *dev = info->user_ptr[1];
b9454e83 2905 struct key_parse key;
e31b8213 2906 const u8 *mac_addr = NULL;
41ade00f 2907
b9454e83
JB		 2908 err = nl80211_parse_key(info, &key);
2909 if (err)
2910 return err;
41ade00f 2911
b9454e83 2912 if (!key.p.key)
41ade00f
JB		 2913 return -EINVAL;
2914
41ade00f
JB		 2915 if (info->attrs[NL80211_ATTR_MAC])
2916 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2917
e31b8213
JB		 2918 if (key.type == -1) {
2919 if (mac_addr)
2920 key.type = NL80211_KEYTYPE_PAIRWISE;
2921 else
2922 key.type = NL80211_KEYTYPE_GROUP;
2923 }
2924
2925 /* for now */
2926 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2927 key.type != NL80211_KEYTYPE_GROUP)
2928 return -EINVAL;
2929
4c476991
JB		 2930 if (!rdev->ops->add_key)
2931 return -EOPNOTSUPP;
25e47c18 2932
e31b8213
JB		 2933 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2934 key.type == NL80211_KEYTYPE_PAIRWISE,
2935 mac_addr))
4c476991 2936 return -EINVAL;
41ade00f 2937
fffd0934
JB		 2938 wdev_lock(dev->ieee80211_ptr);
2939 err = nl80211_key_allowed(dev->ieee80211_ptr);
2940 if (!err)
e35e4d28
HG		 2941 err = rdev_add_key(rdev, dev, key.idx,
2942 key.type == NL80211_KEYTYPE_PAIRWISE,
2943 mac_addr, &key.p);
fffd0934 2944 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2945
41ade00f
JB		 2946 return err;
2947}
2948
2949static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2950{
4c476991 2951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2952 int err;
4c476991 2953 struct net_device *dev = info->user_ptr[1];
41ade00f 2954 u8 *mac_addr = NULL;
b9454e83 2955 struct key_parse key;
41ade00f 2956
b9454e83
JB		 2957 err = nl80211_parse_key(info, &key);
2958 if (err)
2959 return err;
41ade00f
JB		 2960
2961 if (info->attrs[NL80211_ATTR_MAC])
2962 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2963
e31b8213
JB		 2964 if (key.type == -1) {
2965 if (mac_addr)
2966 key.type = NL80211_KEYTYPE_PAIRWISE;
2967 else
2968 key.type = NL80211_KEYTYPE_GROUP;
2969 }
2970
2971 /* for now */
2972 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2973 key.type != NL80211_KEYTYPE_GROUP)
2974 return -EINVAL;
2975
4c476991
JB		 2976 if (!rdev->ops->del_key)
2977 return -EOPNOTSUPP;
41ade00f 2978
fffd0934
JB		 2979 wdev_lock(dev->ieee80211_ptr);
2980 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2981
2982 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2983 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2984 err = -ENOENT;
2985
fffd0934 2986 if (!err)
e35e4d28
HG		 2987 err = rdev_del_key(rdev, dev, key.idx,
2988 key.type == NL80211_KEYTYPE_PAIRWISE,
2989 mac_addr);
41ade00f 2990
3d23e349 2991#ifdef CONFIG_CFG80211_WEXT
08645126 2992 if (!err) {
b9454e83 2993 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2994 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2995 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2996 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2997 }
2998#endif
fffd0934 2999 wdev_unlock(dev->ieee80211_ptr);
08645126 3000
41ade00f
JB		 3001 return err;
3002}
3003
77765eaf
VT		 3004/* This function returns an error or the number of nested attributes */
3005static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3006{
3007 struct nlattr *attr;
3008 int n_entries = 0, tmp;
3009
3010 nla_for_each_nested(attr, nl_attr, tmp) {
3011 if (nla_len(attr) != ETH_ALEN)
3012 return -EINVAL;
3013
3014 n_entries++;
3015 }
3016
3017 return n_entries;
3018}
3019
3020/*
3021 * This function parses ACL information and allocates memory for ACL data.
3022 * On successful return, the calling function is responsible to free the
3023 * ACL buffer returned by this function.
3024 */
3025static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3026 struct genl_info *info)
3027{
3028 enum nl80211_acl_policy acl_policy;
3029 struct nlattr *attr;
3030 struct cfg80211_acl_data *acl;
3031 int i = 0, n_entries, tmp;
3032
3033 if (!wiphy->max_acl_mac_addrs)
3034 return ERR_PTR(-EOPNOTSUPP);
3035
3036 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3037 return ERR_PTR(-EINVAL);
3038
3039 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3040 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3041 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3042 return ERR_PTR(-EINVAL);
3043
3044 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3045 return ERR_PTR(-EINVAL);
3046
3047 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3048 if (n_entries < 0)
3049 return ERR_PTR(n_entries);
3050
3051 if (n_entries > wiphy->max_acl_mac_addrs)
3052 return ERR_PTR(-ENOTSUPP);
3053
3054 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3055 GFP_KERNEL);
3056 if (!acl)
3057 return ERR_PTR(-ENOMEM);
3058
3059 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3060 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3061 i++;
3062 }
3063
3064 acl->n_acl_entries = n_entries;
3065 acl->acl_policy = acl_policy;
3066
3067 return acl;
3068}
3069
3070static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3071{
3072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3073 struct net_device *dev = info->user_ptr[1];
3074 struct cfg80211_acl_data *acl;
3075 int err;
3076
3077 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3078 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3079 return -EOPNOTSUPP;
3080
3081 if (!dev->ieee80211_ptr->beacon_interval)
3082 return -EINVAL;
3083
3084 acl = parse_acl_data(&rdev->wiphy, info);
3085 if (IS_ERR(acl))
3086 return PTR_ERR(acl);
3087
3088 err = rdev_set_mac_acl(rdev, dev, acl);
3089
3090 kfree(acl);
3091
3092 return err;
3093}
3094
a1193be8 3095static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3096 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3097{
8860020e 3098 bool haveinfo = false;
ed1b6cc7 3099
a1193be8
SW		 3100 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3101 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3102 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3103 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3104 return -EINVAL;
3105
8860020e 3106 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3107
a1193be8
SW		 3108 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3109 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3110 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3111 if (!bcn->head_len)
3112 return -EINVAL;
3113 haveinfo = true;
ed1b6cc7
JB		 3114 }
3115
a1193be8
SW		 3116 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3117 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3118 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3119 haveinfo = true;
ed1b6cc7
JB		 3120 }
3121
4c476991
JB		 3122 if (!haveinfo)
3123 return -EINVAL;
3b85875a 3124
a1193be8
SW		 3125 if (attrs[NL80211_ATTR_IE]) {
3126 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3127 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3128 }
3129
a1193be8 3130 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3131 bcn->proberesp_ies =
a1193be8 3132 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3133 bcn->proberesp_ies_len =
a1193be8 3134 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3135 }
3136
a1193be8 3137 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3138 bcn->assocresp_ies =
a1193be8 3139 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3140 bcn->assocresp_ies_len =
a1193be8 3141 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3142 }
3143
a1193be8
SW		 3144 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3145 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3146 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3147 }
3148
8860020e
JB		 3149 return 0;
3150}
3151
46c1dd0c
FF		 3152static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3153 struct cfg80211_ap_settings *params)
3154{
3155 struct wireless_dev *wdev;
3156 bool ret = false;
3157
89a54e48 3158 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3159 if (wdev->iftype != NL80211_IFTYPE_AP &&
3160 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3161 continue;
3162
683b6d3b 3163 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3164 continue;
3165
683b6d3b 3166 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3167 ret = true;
3168 break;
3169 }
3170
46c1dd0c
FF		 3171 return ret;
3172}
3173
e39e5b5e
JM		 3174static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3175 enum nl80211_auth_type auth_type,
3176 enum nl80211_commands cmd)
3177{
3178 if (auth_type > NL80211_AUTHTYPE_MAX)
3179 return false;
3180
3181 switch (cmd) {
3182 case NL80211_CMD_AUTHENTICATE:
3183 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3184 auth_type == NL80211_AUTHTYPE_SAE)
3185 return false;
3186 return true;
3187 case NL80211_CMD_CONNECT:
3188 case NL80211_CMD_START_AP:
3189 /* SAE not supported yet */
3190 if (auth_type == NL80211_AUTHTYPE_SAE)
3191 return false;
3192 return true;
3193 default:
3194 return false;
3195 }
3196}
3197
8860020e
JB		 3198static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3199{
3200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3201 struct net_device *dev = info->user_ptr[1];
3202 struct wireless_dev *wdev = dev->ieee80211_ptr;
3203 struct cfg80211_ap_settings params;
3204 int err;
3205
3206 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3207 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3208 return -EOPNOTSUPP;
3209
3210 if (!rdev->ops->start_ap)
3211 return -EOPNOTSUPP;
3212
3213 if (wdev->beacon_interval)
3214 return -EALREADY;
3215
3216 memset(&params, 0, sizeof(params));
3217
3218 /* these are required for START_AP */
3219 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3220 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3221 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3222 return -EINVAL;
3223
a1193be8 3224 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3225 if (err)
3226 return err;
3227
3228 params.beacon_interval =
3229 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3230 params.dtim_period =
3231 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3232
3233 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3234 if (err)
3235 return err;
3236
3237 /*
3238 * In theory, some of these attributes should be required here
3239 * but since they were not used when the command was originally
3240 * added, keep them optional for old user space programs to let
3241 * them continue to work with drivers that do not need the
3242 * additional information -- drivers must check!
3243 */
3244 if (info->attrs[NL80211_ATTR_SSID]) {
3245 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3246 params.ssid_len =
3247 nla_len(info->attrs[NL80211_ATTR_SSID]);
3248 if (params.ssid_len == 0 ||
3249 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3250 return -EINVAL;
3251 }
3252
3253 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3254 params.hidden_ssid = nla_get_u32(
3255 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3256 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3257 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3258 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3259 return -EINVAL;
3260 }
3261
3262 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3263
3264 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3265 params.auth_type = nla_get_u32(
3266 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3267 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3268 NL80211_CMD_START_AP))
8860020e
JB		 3269 return -EINVAL;
3270 } else
3271 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3272
3273 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3274 NL80211_MAX_NR_CIPHER_SUITES);
3275 if (err)
3276 return err;
3277
1b658f11
VT		 3278 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3279 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3280 return -EOPNOTSUPP;
3281 params.inactivity_timeout = nla_get_u16(
3282 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3283 }
3284
53cabad7
JB		 3285 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3286 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3287 return -EINVAL;
3288 params.p2p_ctwindow =
3289 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3290 if (params.p2p_ctwindow > 127)
3291 return -EINVAL;
3292 if (params.p2p_ctwindow != 0 &&
3293 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3294 return -EINVAL;
3295 }
3296
3297 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3298 u8 tmp;
3299
3300 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3301 return -EINVAL;
3302 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3303 if (tmp > 1)
3304 return -EINVAL;
3305 params.p2p_opp_ps = tmp;
3306 if (params.p2p_opp_ps != 0 &&
3307 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3308 return -EINVAL;
3309 }
3310
aa430da4 3311 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3312 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3313 if (err)
3314 return err;
3315 } else if (wdev->preset_chandef.chan) {
3316 params.chandef = wdev->preset_chandef;
46c1dd0c 3317 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3318 return -EINVAL;
3319
174e0cd2
IP		 3320 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3321 wdev->iftype))
aa430da4
JB		 3322 return -EINVAL;
3323
77765eaf
VT		 3324 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3325 params.acl = parse_acl_data(&rdev->wiphy, info);
3326 if (IS_ERR(params.acl))
3327 return PTR_ERR(params.acl);
3328 }
3329
c56589ed 3330 wdev_lock(wdev);
e35e4d28 3331 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3332 if (!err) {
683b6d3b 3333 wdev->preset_chandef = params.chandef;
8860020e 3334 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3335 wdev->chandef = params.chandef;
06e191e2
AQ		 3336 wdev->ssid_len = params.ssid_len;
3337 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3338 }
c56589ed 3339 wdev_unlock(wdev);
77765eaf
VT		 3340
3341 kfree(params.acl);
3342
56d1893d 3343 return err;
ed1b6cc7
JB		 3344}
3345
8860020e
JB		 3346static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3347{
3348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3349 struct net_device *dev = info->user_ptr[1];
3350 struct wireless_dev *wdev = dev->ieee80211_ptr;
3351 struct cfg80211_beacon_data params;
3352 int err;
3353
3354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3355 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3356 return -EOPNOTSUPP;
3357
3358 if (!rdev->ops->change_beacon)
3359 return -EOPNOTSUPP;
3360
3361 if (!wdev->beacon_interval)
3362 return -EINVAL;
3363
a1193be8 3364 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3365 if (err)
3366 return err;
3367
c56589ed
SW		 3368 wdev_lock(wdev);
3369 err = rdev_change_beacon(rdev, dev, &params);
3370 wdev_unlock(wdev);
3371
3372 return err;
8860020e
JB		 3373}
3374
3375static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3376{
4c476991
JB		 3377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3378 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3379
7c8d5e03 3380 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3381}
3382
5727ef1b
JB		 3383static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3384 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3385 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3386 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3387 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3388 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3389 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3390};
3391
eccb8e8f 3392static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3393 enum nl80211_iftype iftype,
eccb8e8f 3394 struct station_parameters *params)
5727ef1b
JB		 3395{
3396 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3397 struct nlattr *nla;
5727ef1b
JB		 3398 int flag;
3399
eccb8e8f
JB		 3400 /*
3401 * Try parsing the new attribute first so userspace
3402 * can specify both for older kernels.
3403 */
3404 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3405 if (nla) {
3406 struct nl80211_sta_flag_update *sta_flags;
3407
3408 sta_flags = nla_data(nla);
3409 params->sta_flags_mask = sta_flags->mask;
3410 params->sta_flags_set = sta_flags->set;
77ee7c89 3411 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3412 if ((params->sta_flags_mask |
3413 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3414 return -EINVAL;
3415 return 0;
3416 }
3417
3418 /* if present, parse the old attribute */
5727ef1b 3419
eccb8e8f 3420 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3421 if (!nla)
3422 return 0;
3423
3424 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3425 nla, sta_flags_policy))
3426 return -EINVAL;
3427
bdd3ae3d
JB		 3428 /*
3429 * Only allow certain flags for interface types so that
3430 * other attributes are silently ignored. Remember that
3431 * this is backward compatibility code with old userspace
3432 * and shouldn't be hit in other cases anyway.
3433 */
3434 switch (iftype) {
3435 case NL80211_IFTYPE_AP:
3436 case NL80211_IFTYPE_AP_VLAN:
3437 case NL80211_IFTYPE_P2P_GO:
3438 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3439 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3440 BIT(NL80211_STA_FLAG_WME) |
3441 BIT(NL80211_STA_FLAG_MFP);
3442 break;
3443 case NL80211_IFTYPE_P2P_CLIENT:
3444 case NL80211_IFTYPE_STATION:
3445 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3446 BIT(NL80211_STA_FLAG_TDLS_PEER);
3447 break;
3448 case NL80211_IFTYPE_MESH_POINT:
3449 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3450 BIT(NL80211_STA_FLAG_MFP) |
3451 BIT(NL80211_STA_FLAG_AUTHORIZED);
3452 default:
3453 return -EINVAL;
3454 }
5727ef1b 3455
3383b5a6
JB		 3456 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3457 if (flags[flag]) {
eccb8e8f 3458 params->sta_flags_set |= (1<<flag);
5727ef1b 3459
3383b5a6
JB		 3460 /* no longer support new API additions in old API */
3461 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3462 return -EINVAL;
3463 }
3464 }
3465
5727ef1b
JB		 3466 return 0;
3467}
3468
c8dcfd8a
FF		 3469static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3470 int attr)
3471{
3472 struct nlattr *rate;
8eb41c8d
VK		 3473 u32 bitrate;
3474 u16 bitrate_compat;
c8dcfd8a
FF		 3475
3476 rate = nla_nest_start(msg, attr);
3477 if (!rate)
db9c64cf 3478 return false;
c8dcfd8a
FF		 3479
3480 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3481 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3482 /* report 16-bit bitrate only if we can */
3483 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3484 if (bitrate > 0 &&
3485 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3486 return false;
3487 if (bitrate_compat > 0 &&
3488 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3489 return false;
3490
3491 if (info->flags & RATE_INFO_FLAGS_MCS) {
3492 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3493 return false;
3494 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3495 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3496 return false;
3497 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3498 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3499 return false;
3500 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3501 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3502 return false;
3503 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3504 return false;
3505 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3506 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3507 return false;
3508 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3509 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3510 return false;
3511 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3512 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3513 return false;
3514 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3515 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3516 return false;
3517 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3518 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3519 return false;
3520 }
c8dcfd8a
FF		 3521
3522 nla_nest_end(msg, rate);
3523 return true;
c8dcfd8a
FF		 3524}
3525
119363c7
FF		 3526static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3527 int id)
3528{
3529 void *attr;
3530 int i = 0;
3531
3532 if (!mask)
3533 return true;
3534
3535 attr = nla_nest_start(msg, id);
3536 if (!attr)
3537 return false;
3538
3539 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3540 if (!(mask & BIT(i)))
3541 continue;
3542
3543 if (nla_put_u8(msg, i, signal[i]))
3544 return false;
3545 }
3546
3547 nla_nest_end(msg, attr);
3548
3549 return true;
3550}
3551
15e47304 3552static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3553 int flags,
3554 struct cfg80211_registered_device *rdev,
3555 struct net_device *dev,
98b62183 3556 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3557{
3558 void *hdr;
f4263c98 3559 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3560
15e47304 3561 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3562 if (!hdr)
3563 return -1;
3564
9360ffd1
DM		 3565 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3566 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3567 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3568 goto nla_put_failure;
f5ea9120 3569
2ec600d6
LCC		 3570 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3571 if (!sinfoattr)
fd5b74dc 3572 goto nla_put_failure;
9360ffd1
DM		 3573 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3574 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3575 sinfo->connected_time))
3576 goto nla_put_failure;
3577 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3578 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3579 sinfo->inactive_time))
3580 goto nla_put_failure;
42745e03
VK		 3581 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3582 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3583 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3584 (u32)sinfo->rx_bytes))
9360ffd1 3585 goto nla_put_failure;
42745e03 3586 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3587 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3588 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3589 (u32)sinfo->tx_bytes))
3590 goto nla_put_failure;
3591 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3592 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3593 sinfo->rx_bytes))
3594 goto nla_put_failure;
3595 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3596 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3597 sinfo->tx_bytes))
3598 goto nla_put_failure;
3599 if ((sinfo->filled & STATION_INFO_LLID) &&
3600 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3601 goto nla_put_failure;
3602 if ((sinfo->filled & STATION_INFO_PLID) &&
3603 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3604 goto nla_put_failure;
3605 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3606 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3607 sinfo->plink_state))
3608 goto nla_put_failure;
66266b3a
JL		 3609 switch (rdev->wiphy.signal_type) {
3610 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3611 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3612 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3613 sinfo->signal))
3614 goto nla_put_failure;
3615 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3616 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3617 sinfo->signal_avg))
3618 goto nla_put_failure;
66266b3a
JL		 3619 break;
3620 default:
3621 break;
3622 }
119363c7
FF		 3623 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3624 if (!nl80211_put_signal(msg, sinfo->chains,
3625 sinfo->chain_signal,
3626 NL80211_STA_INFO_CHAIN_SIGNAL))
3627 goto nla_put_failure;
3628 }
3629 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3630 if (!nl80211_put_signal(msg, sinfo->chains,
3631 sinfo->chain_signal_avg,
3632 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3633 goto nla_put_failure;
3634 }
420e7fab 3635 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3636 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3637 NL80211_STA_INFO_TX_BITRATE))
3638 goto nla_put_failure;
3639 }
3640 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3641 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3642 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3643 goto nla_put_failure;
420e7fab 3644 }
9360ffd1
DM		 3645 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3646 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3647 sinfo->rx_packets))
3648 goto nla_put_failure;
3649 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3650 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3651 sinfo->tx_packets))
3652 goto nla_put_failure;
3653 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3654 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3655 sinfo->tx_retries))
3656 goto nla_put_failure;
3657 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3658 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3659 sinfo->tx_failed))
3660 goto nla_put_failure;
867d849f
AQ		 3661 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3662 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3663 sinfo->expected_throughput))
3664 goto nla_put_failure;
9360ffd1
DM		 3665 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3666 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3667 sinfo->beacon_loss_count))
3668 goto nla_put_failure;
3b1c5a53
MP		 3669 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3670 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3671 sinfo->local_pm))
3672 goto nla_put_failure;
3673 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3674 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3675 sinfo->peer_pm))
3676 goto nla_put_failure;
3677 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3678 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3679 sinfo->nonpeer_pm))
3680 goto nla_put_failure;
f4263c98
PS		 3681 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3682 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3683 if (!bss_param)
3684 goto nla_put_failure;
3685
9360ffd1
DM		 3686 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3687 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3688 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3689 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3690 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3691 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3692 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3693 sinfo->bss_param.dtim_period) ||
3694 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3695 sinfo->bss_param.beacon_interval))
3696 goto nla_put_failure;
f4263c98
PS		 3697
3698 nla_nest_end(msg, bss_param);
3699 }
9360ffd1
DM		 3700 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3701 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3702 sizeof(struct nl80211_sta_flag_update),
3703 &sinfo->sta_flags))
3704 goto nla_put_failure;
7eab0f64
JL		 3705 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3706 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3707 sinfo->t_offset))
3708 goto nla_put_failure;
2ec600d6 3709 nla_nest_end(msg, sinfoattr);
fd5b74dc 3710
9360ffd1
DM		 3711 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3712 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3713 sinfo->assoc_req_ies))
3714 goto nla_put_failure;
50d3dfb7 3715
fd5b74dc
JB		 3716 return genlmsg_end(msg, hdr);
3717
3718 nla_put_failure:
bc3ed28c
TG		 3719 genlmsg_cancel(msg, hdr);
3720 return -EMSGSIZE;
fd5b74dc
JB		 3721}
3722
2ec600d6 3723static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3724 struct netlink_callback *cb)
2ec600d6 3725{
2ec600d6 3726 struct station_info sinfo;
1b8ec87a 3727 struct cfg80211_registered_device *rdev;
97990a06 3728 struct wireless_dev *wdev;
2ec600d6 3729 u8 mac_addr[ETH_ALEN];
97990a06 3730 int sta_idx = cb->args[2];
2ec600d6 3731 int err;
2ec600d6 3732
1b8ec87a 3733 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3734 if (err)
3735 return err;
bba95fef 3736
97990a06
JB		 3737 if (!wdev->netdev) {
3738 err = -EINVAL;
3739 goto out_err;
3740 }
3741
1b8ec87a 3742 if (!rdev->ops->dump_station) {
eec60b03 3743 err = -EOPNOTSUPP;
bba95fef
JB		 3744 goto out_err;
3745 }
3746
bba95fef 3747 while (1) {
f612cedf 3748 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3749 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3750 mac_addr, &sinfo);
bba95fef
JB		 3751 if (err == -ENOENT)
3752 break;
3753 if (err)
3b85875a 3754 goto out_err;
bba95fef
JB		 3755
3756 if (nl80211_send_station(skb,
15e47304 3757 NETLINK_CB(cb->skb).portid,
bba95fef 3758 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3759 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3760 &sinfo) < 0)
3761 goto out;
3762
3763 sta_idx++;
3764 }
3765
3766
3767 out:
97990a06 3768 cb->args[2] = sta_idx;
bba95fef 3769 err = skb->len;
bba95fef 3770 out_err:
1b8ec87a 3771 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3772
3773 return err;
2ec600d6 3774}
fd5b74dc 3775
5727ef1b
JB		 3776static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3777{
4c476991
JB		 3778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3779 struct net_device *dev = info->user_ptr[1];
2ec600d6 3780 struct station_info sinfo;
fd5b74dc
JB		 3781 struct sk_buff *msg;
3782 u8 *mac_addr = NULL;
4c476991 3783 int err;
fd5b74dc 3784
2ec600d6 3785 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3786
3787 if (!info->attrs[NL80211_ATTR_MAC])
3788 return -EINVAL;
3789
3790 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3791
4c476991
JB		 3792 if (!rdev->ops->get_station)
3793 return -EOPNOTSUPP;
3b85875a 3794
e35e4d28 3795 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3796 if (err)
4c476991 3797 return err;
2ec600d6 3798
fd2120ca 3799 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3800 if (!msg)
4c476991 3801 return -ENOMEM;
fd5b74dc 3802
15e47304 3803 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3804 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3805 nlmsg_free(msg);
3806 return -ENOBUFS;
3807 }
3b85875a 3808
4c476991 3809 return genlmsg_reply(msg, info);
5727ef1b
JB		 3810}
3811
77ee7c89
JB		 3812int cfg80211_check_station_change(struct wiphy *wiphy,
3813 struct station_parameters *params,
3814 enum cfg80211_station_type statype)
3815{
3816 if (params->listen_interval != -1)
3817 return -EINVAL;
c72e1140
AN		 3818 if (params->aid &&
3819 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3820 return -EINVAL;
3821
3822 /* When you run into this, adjust the code below for the new flag */
3823 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3824
3825 switch (statype) {
eef941e6
TP		 3826 case CFG80211_STA_MESH_PEER_KERNEL:
3827 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3828 /*
3829 * No ignoring the TDLS flag here -- the userspace mesh
3830 * code doesn't have the bug of including TDLS in the
3831 * mask everywhere.
3832 */
3833 if (params->sta_flags_mask &
3834 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3835 BIT(NL80211_STA_FLAG_MFP) |
3836 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3837 return -EINVAL;
3838 break;
3839 case CFG80211_STA_TDLS_PEER_SETUP:
3840 case CFG80211_STA_TDLS_PEER_ACTIVE:
3841 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3842 return -EINVAL;
3843 /* ignore since it can't change */
3844 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3845 break;
3846 default:
3847 /* disallow mesh-specific things */
3848 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3849 return -EINVAL;
3850 if (params->local_pm)
3851 return -EINVAL;
3852 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3853 return -EINVAL;
3854 }
3855
3856 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3857 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3858 /* TDLS can't be set, ... */
3859 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3860 return -EINVAL;
3861 /*
3862 * ... but don't bother the driver with it. This works around
3863 * a hostapd/wpa_supplicant issue -- it always includes the
3864 * TLDS_PEER flag in the mask even for AP mode.
3865 */
3866 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3867 }
3868
3869 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3870 /* reject other things that can't change */
3871 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3872 return -EINVAL;
3873 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3874 return -EINVAL;
3875 if (params->supported_rates)
3876 return -EINVAL;
3877 if (params->ext_capab || params->ht_capa || params->vht_capa)
3878 return -EINVAL;
3879 }
3880
3881 if (statype != CFG80211_STA_AP_CLIENT) {
3882 if (params->vlan)
3883 return -EINVAL;
3884 }
3885
3886 switch (statype) {
3887 case CFG80211_STA_AP_MLME_CLIENT:
3888 /* Use this only for authorizing/unauthorizing a station */
3889 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3890 return -EOPNOTSUPP;
3891 break;
3892 case CFG80211_STA_AP_CLIENT:
3893 /* accept only the listed bits */
3894 if (params->sta_flags_mask &
3895 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3896 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3897 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3898 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3899 BIT(NL80211_STA_FLAG_WME) |
3900 BIT(NL80211_STA_FLAG_MFP)))
3901 return -EINVAL;
3902
3903 /* but authenticated/associated only if driver handles it */
3904 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3905 params->sta_flags_mask &
3906 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3907 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3908 return -EINVAL;
3909 break;
3910 case CFG80211_STA_IBSS:
3911 case CFG80211_STA_AP_STA:
3912 /* reject any changes other than AUTHORIZED */
3913 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3914 return -EINVAL;
3915 break;
3916 case CFG80211_STA_TDLS_PEER_SETUP:
3917 /* reject any changes other than AUTHORIZED or WME */
3918 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3919 BIT(NL80211_STA_FLAG_WME)))
3920 return -EINVAL;
3921 /* force (at least) rates when authorizing */
3922 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3923 !params->supported_rates)
3924 return -EINVAL;
3925 break;
3926 case CFG80211_STA_TDLS_PEER_ACTIVE:
3927 /* reject any changes */
3928 return -EINVAL;
eef941e6 3929 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3930 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3931 return -EINVAL;
3932 break;
eef941e6 3933 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3934 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3935 return -EINVAL;
3936 break;
3937 }
3938
3939 return 0;
3940}
3941EXPORT_SYMBOL(cfg80211_check_station_change);
3942
5727ef1b 3943/*
c258d2de 3944 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3945 */
80b99899
JB		 3946static struct net_device *get_vlan(struct genl_info *info,
3947 struct cfg80211_registered_device *rdev)
5727ef1b 3948{
463d0183 3949 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3950 struct net_device *v;
3951 int ret;
3952
3953 if (!vlanattr)
3954 return NULL;
3955
3956 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3957 if (!v)
3958 return ERR_PTR(-ENODEV);
3959
3960 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3961 ret = -EINVAL;
3962 goto error;
5727ef1b 3963 }
80b99899 3964
77ee7c89
JB		 3965 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3966 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3967 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3968 ret = -EINVAL;
3969 goto error;
3970 }
3971
80b99899
JB		 3972 if (!netif_running(v)) {
3973 ret = -ENETDOWN;
3974 goto error;
3975 }
3976
3977 return v;
3978 error:
3979 dev_put(v);
3980 return ERR_PTR(ret);
5727ef1b
JB		 3981}
3982
94e860f1
JB		 3983static const struct nla_policy
3984nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3985 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3986 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3987};
3988
ff276691
JB		 3989static int nl80211_parse_sta_wme(struct genl_info *info,
3990 struct station_parameters *params)
df881293 3991{
df881293
JM		 3992 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3993 struct nlattr *nla;
3994 int err;
3995
df881293
JM		 3996 /* parse WME attributes if present */
3997 if (!info->attrs[NL80211_ATTR_STA_WME])
3998 return 0;
3999
4000 nla = info->attrs[NL80211_ATTR_STA_WME];
4001 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4002 nl80211_sta_wme_policy);
4003 if (err)
4004 return err;
4005
4006 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4007 params->uapsd_queues = nla_get_u8(
4008 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4009 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4010 return -EINVAL;
4011
4012 if (tb[NL80211_STA_WME_MAX_SP])
4013 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4014
4015 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4016 return -EINVAL;
4017
4018 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4019
4020 return 0;
4021}
4022
c01fc9ad
SD		 4023static int nl80211_parse_sta_channel_info(struct genl_info *info,
4024 struct station_parameters *params)
4025{
4026 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4027 params->supported_channels =
4028 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4029 params->supported_channels_len =
4030 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4031 /*
4032 * Need to include at least one (first channel, number of
4033 * channels) tuple for each subband, and must have proper
4034 * tuples for the rest of the data as well.
4035 */
4036 if (params->supported_channels_len < 2)
4037 return -EINVAL;
4038 if (params->supported_channels_len % 2)
4039 return -EINVAL;
4040 }
4041
4042 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4043 params->supported_oper_classes =
4044 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4045 params->supported_oper_classes_len =
4046 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4047 /*
4048 * The value of the Length field of the Supported Operating
4049 * Classes element is between 2 and 253.
4050 */
4051 if (params->supported_oper_classes_len < 2 ||
4052 params->supported_oper_classes_len > 253)
4053 return -EINVAL;
4054 }
4055 return 0;
4056}
4057
ff276691
JB		 4058static int nl80211_set_station_tdls(struct genl_info *info,
4059 struct station_parameters *params)
4060{
c01fc9ad 4061 int err;
ff276691 4062 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4063 if (info->attrs[NL80211_ATTR_PEER_AID])
4064 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4065 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4066 params->ht_capa =
4067 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4068 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4069 params->vht_capa =
4070 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4071
c01fc9ad
SD		 4072 err = nl80211_parse_sta_channel_info(info, params);
4073 if (err)
4074 return err;
4075
ff276691
JB		 4076 return nl80211_parse_sta_wme(info, params);
4077}
4078
5727ef1b
JB		 4079static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4080{
4c476991 4081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4082 struct net_device *dev = info->user_ptr[1];
5727ef1b 4083 struct station_parameters params;
77ee7c89
JB		 4084 u8 *mac_addr;
4085 int err;
5727ef1b
JB		 4086
4087 memset(&params, 0, sizeof(params));
4088
4089 params.listen_interval = -1;
4090
77ee7c89
JB		 4091 if (!rdev->ops->change_station)
4092 return -EOPNOTSUPP;
4093
5727ef1b
JB		 4094 if (info->attrs[NL80211_ATTR_STA_AID])
4095 return -EINVAL;
4096
4097 if (!info->attrs[NL80211_ATTR_MAC])
4098 return -EINVAL;
4099
4100 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4101
4102 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4103 params.supported_rates =
4104 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4105 params.supported_rates_len =
4106 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4107 }
4108
9d62a986
JM		 4109 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4110 params.capability =
4111 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4112 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4113 }
4114
4115 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4116 params.ext_capab =
4117 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4118 params.ext_capab_len =
4119 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4120 }
4121
df881293 4122 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4123 return -EINVAL;
36aedc90 4124
bdd3ae3d 4125 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4126 return -EINVAL;
4127
f8bacc21 4128 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4129 params.plink_action =
f8bacc21
JB		 4130 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4131 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4132 return -EINVAL;
4133 }
2ec600d6 4134
f8bacc21 4135 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4136 params.plink_state =
f8bacc21
JB		 4137 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4138 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4139 return -EINVAL;
4140 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4141 }
9c3990aa 4142
3b1c5a53
MP		 4143 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4144 enum nl80211_mesh_power_mode pm = nla_get_u32(
4145 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4146
4147 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4148 pm > NL80211_MESH_POWER_MAX)
4149 return -EINVAL;
4150
4151 params.local_pm = pm;
4152 }
4153
77ee7c89
JB		 4154 /* Include parameters for TDLS peer (will check later) */
4155 err = nl80211_set_station_tdls(info, &params);
4156 if (err)
4157 return err;
4158
4159 params.vlan = get_vlan(info, rdev);
4160 if (IS_ERR(params.vlan))
4161 return PTR_ERR(params.vlan);
4162
a97f4424
JB		 4163 switch (dev->ieee80211_ptr->iftype) {
4164 case NL80211_IFTYPE_AP:
4165 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4166 case NL80211_IFTYPE_P2P_GO:
074ac8df 4167 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4168 case NL80211_IFTYPE_STATION:
267335d6 4169 case NL80211_IFTYPE_ADHOC:
a97f4424 4170 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4171 break;
4172 default:
77ee7c89
JB		 4173 err = -EOPNOTSUPP;
4174 goto out_put_vlan;
034d655e
JB		 4175 }
4176
77ee7c89 4177 /* driver will call cfg80211_check_station_change() */
e35e4d28 4178 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4179
77ee7c89 4180 out_put_vlan:
5727ef1b
JB		 4181 if (params.vlan)
4182 dev_put(params.vlan);
3b85875a 4183
5727ef1b
JB		 4184 return err;
4185}
4186
4187static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4188{
4c476991 4189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4190 int err;
4c476991 4191 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4192 struct station_parameters params;
4193 u8 *mac_addr = NULL;
4194
4195 memset(&params, 0, sizeof(params));
4196
984c311b
JB		 4197 if (!rdev->ops->add_station)
4198 return -EOPNOTSUPP;
4199
5727ef1b
JB		 4200 if (!info->attrs[NL80211_ATTR_MAC])
4201 return -EINVAL;
4202
5727ef1b
JB		 4203 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4204 return -EINVAL;
4205
4206 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4207 return -EINVAL;
4208
5e4b6f56
JM		 4209 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4210 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4211 return -EINVAL;
4212
5727ef1b
JB		 4213 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4214 params.supported_rates =
4215 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4216 params.supported_rates_len =
4217 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4218 params.listen_interval =
4219 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4220
3d124ea2 4221 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4222 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4223 else
4224 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4225 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4226 return -EINVAL;
51b50fbe 4227
9d62a986
JM		 4228 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4229 params.capability =
4230 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4231 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4232 }
4233
4234 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4235 params.ext_capab =
4236 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4237 params.ext_capab_len =
4238 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4239 }
4240
36aedc90
JM		 4241 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4242 params.ht_capa =
4243 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4244
f461be3e
MP		 4245 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4246 params.vht_capa =
4247 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4248
60f4a7b1
MK		 4249 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4250 params.opmode_notif_used = true;
4251 params.opmode_notif =
4252 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4253 }
4254
f8bacc21 4255 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4256 params.plink_action =
f8bacc21
JB		 4257 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4258 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4259 return -EINVAL;
4260 }
96b78dff 4261
c01fc9ad
SD		 4262 err = nl80211_parse_sta_channel_info(info, &params);
4263 if (err)
4264 return err;
4265
ff276691
JB		 4266 err = nl80211_parse_sta_wme(info, &params);
4267 if (err)
4268 return err;
bdd90d5e 4269
bdd3ae3d 4270 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4271 return -EINVAL;
4272
77ee7c89
JB		 4273 /* When you run into this, adjust the code below for the new flag */
4274 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4275
bdd90d5e
JB		 4276 switch (dev->ieee80211_ptr->iftype) {
4277 case NL80211_IFTYPE_AP:
4278 case NL80211_IFTYPE_AP_VLAN:
4279 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4280 /* ignore WME attributes if iface/sta is not capable */
4281 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4282 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4283 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4284
bdd90d5e 4285 /* TDLS peers cannot be added */
3d124ea2
JM		 4286 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4287 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4288 return -EINVAL;
bdd90d5e
JB		 4289 /* but don't bother the driver with it */
4290 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4291
d582cffb
JB		 4292 /* allow authenticated/associated only if driver handles it */
4293 if (!(rdev->wiphy.features &
4294 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4295 params.sta_flags_mask &
4296 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4297 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4298 return -EINVAL;
4299
bdd90d5e
JB		 4300 /* must be last in here for error handling */
4301 params.vlan = get_vlan(info, rdev);
4302 if (IS_ERR(params.vlan))
4303 return PTR_ERR(params.vlan);
4304 break;
4305 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4306 /* ignore uAPSD data */
4307 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4308
d582cffb
JB		 4309 /* associated is disallowed */
4310 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4311 return -EINVAL;
bdd90d5e 4312 /* TDLS peers cannot be added */
3d124ea2
JM		 4313 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4314 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4315 return -EINVAL;
4316 break;
4317 case NL80211_IFTYPE_STATION:
93d08f0b 4318 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4319 /* ignore uAPSD data */
4320 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4321
77ee7c89
JB		 4322 /* these are disallowed */
4323 if (params.sta_flags_mask &
4324 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4325 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4326 return -EINVAL;
bdd90d5e
JB		 4327 /* Only TDLS peers can be added */
4328 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4329 return -EINVAL;
4330 /* Can only add if TDLS ... */
4331 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4332 return -EOPNOTSUPP;
4333 /* ... with external setup is supported */
4334 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4335 return -EOPNOTSUPP;
77ee7c89
JB		 4336 /*
4337 * Older wpa_supplicant versions always mark the TDLS peer
4338 * as authorized, but it shouldn't yet be.
4339 */
4340 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4341 break;
4342 default:
4343 return -EOPNOTSUPP;
c75786c9
EP		 4344 }
4345
bdd90d5e 4346 /* be aware of params.vlan when changing code here */
5727ef1b 4347
e35e4d28 4348 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4349
5727ef1b
JB		 4350 if (params.vlan)
4351 dev_put(params.vlan);
5727ef1b
JB		 4352 return err;
4353}
4354
4355static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4356{
4c476991
JB		 4357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4358 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4359 u8 *mac_addr = NULL;
4360
4361 if (info->attrs[NL80211_ATTR_MAC])
4362 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4363
e80cf853 4364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4366 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4367 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4368 return -EINVAL;
5727ef1b 4369
4c476991
JB		 4370 if (!rdev->ops->del_station)
4371 return -EOPNOTSUPP;
3b85875a 4372
e35e4d28 4373 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4374}
4375
15e47304 4376static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4377 int flags, struct net_device *dev,
4378 u8 *dst, u8 *next_hop,
4379 struct mpath_info *pinfo)
4380{
4381 void *hdr;
4382 struct nlattr *pinfoattr;
4383
15e47304 4384 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4385 if (!hdr)
4386 return -1;
4387
9360ffd1
DM		 4388 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4389 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4390 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4391 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4392 goto nla_put_failure;
f5ea9120 4393
2ec600d6
LCC		 4394 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4395 if (!pinfoattr)
4396 goto nla_put_failure;
9360ffd1
DM		 4397 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4398 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4399 pinfo->frame_qlen))
4400 goto nla_put_failure;
4401 if (((pinfo->filled & MPATH_INFO_SN) &&
4402 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4403 ((pinfo->filled & MPATH_INFO_METRIC) &&
4404 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4405 pinfo->metric)) ||
4406 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4407 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4408 pinfo->exptime)) ||
4409 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4410 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4411 pinfo->flags)) ||
4412 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4413 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4414 pinfo->discovery_timeout)) ||
4415 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4416 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4417 pinfo->discovery_retries)))
4418 goto nla_put_failure;
2ec600d6
LCC		 4419
4420 nla_nest_end(msg, pinfoattr);
4421
4422 return genlmsg_end(msg, hdr);
4423
4424 nla_put_failure:
bc3ed28c
TG		 4425 genlmsg_cancel(msg, hdr);
4426 return -EMSGSIZE;
2ec600d6
LCC		 4427}
4428
4429static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4430 struct netlink_callback *cb)
2ec600d6 4431{
2ec600d6 4432 struct mpath_info pinfo;
1b8ec87a 4433 struct cfg80211_registered_device *rdev;
97990a06 4434 struct wireless_dev *wdev;
2ec600d6
LCC		 4435 u8 dst[ETH_ALEN];
4436 u8 next_hop[ETH_ALEN];
97990a06 4437 int path_idx = cb->args[2];
2ec600d6 4438 int err;
2ec600d6 4439
1b8ec87a 4440 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4441 if (err)
4442 return err;
bba95fef 4443
1b8ec87a 4444 if (!rdev->ops->dump_mpath) {
eec60b03 4445 err = -EOPNOTSUPP;
bba95fef
JB		 4446 goto out_err;
4447 }
4448
97990a06 4449 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4450 err = -EOPNOTSUPP;
0448b5fc 4451 goto out_err;
eec60b03
JM		 4452 }
4453
bba95fef 4454 while (1) {
1b8ec87a 4455 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4456 next_hop, &pinfo);
bba95fef 4457 if (err == -ENOENT)
2ec600d6 4458 break;
bba95fef 4459 if (err)
3b85875a 4460 goto out_err;
2ec600d6 4461
15e47304 4462 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4463 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4464 wdev->netdev, dst, next_hop,
bba95fef
JB		 4465 &pinfo) < 0)
4466 goto out;
2ec600d6 4467
bba95fef 4468 path_idx++;
2ec600d6 4469 }
2ec600d6 4470
2ec600d6 4471
bba95fef 4472 out:
97990a06 4473 cb->args[2] = path_idx;
bba95fef 4474 err = skb->len;
bba95fef 4475 out_err:
1b8ec87a 4476 nl80211_finish_wdev_dump(rdev);
bba95fef 4477 return err;
2ec600d6
LCC		 4478}
4479
4480static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4481{
4c476991 4482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4483 int err;
4c476991 4484 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4485 struct mpath_info pinfo;
4486 struct sk_buff *msg;
4487 u8 *dst = NULL;
4488 u8 next_hop[ETH_ALEN];
4489
4490 memset(&pinfo, 0, sizeof(pinfo));
4491
4492 if (!info->attrs[NL80211_ATTR_MAC])
4493 return -EINVAL;
4494
4495 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4496
4c476991
JB		 4497 if (!rdev->ops->get_mpath)
4498 return -EOPNOTSUPP;
2ec600d6 4499
4c476991
JB		 4500 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4501 return -EOPNOTSUPP;
eec60b03 4502
e35e4d28 4503 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4504 if (err)
4c476991 4505 return err;
2ec600d6 4506
fd2120ca 4507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4508 if (!msg)
4c476991 4509 return -ENOMEM;
2ec600d6 4510
15e47304 4511 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4512 dev, dst, next_hop, &pinfo) < 0) {
4513 nlmsg_free(msg);
4514 return -ENOBUFS;
4515 }
3b85875a 4516
4c476991 4517 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4518}
4519
4520static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4521{
4c476991
JB		 4522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4523 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4524 u8 *dst = NULL;
4525 u8 *next_hop = NULL;
4526
4527 if (!info->attrs[NL80211_ATTR_MAC])
4528 return -EINVAL;
4529
4530 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4531 return -EINVAL;
4532
4533 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4534 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4535
4c476991
JB		 4536 if (!rdev->ops->change_mpath)
4537 return -EOPNOTSUPP;
35a8efe1 4538
4c476991
JB		 4539 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4540 return -EOPNOTSUPP;
2ec600d6 4541
e35e4d28 4542 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4543}
4c476991 4544
2ec600d6
LCC		 4545static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4546{
4c476991
JB		 4547 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4548 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4549 u8 *dst = NULL;
4550 u8 *next_hop = NULL;
4551
4552 if (!info->attrs[NL80211_ATTR_MAC])
4553 return -EINVAL;
4554
4555 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4556 return -EINVAL;
4557
4558 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4559 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4560
4c476991
JB		 4561 if (!rdev->ops->add_mpath)
4562 return -EOPNOTSUPP;
35a8efe1 4563
4c476991
JB		 4564 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4565 return -EOPNOTSUPP;
2ec600d6 4566
e35e4d28 4567 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4568}
4569
4570static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4571{
4c476991
JB		 4572 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4573 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4574 u8 *dst = NULL;
4575
4576 if (info->attrs[NL80211_ATTR_MAC])
4577 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4578
4c476991
JB		 4579 if (!rdev->ops->del_mpath)
4580 return -EOPNOTSUPP;
3b85875a 4581
e35e4d28 4582 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4583}
4584
9f1ba906
JM		 4585static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4586{
4c476991
JB		 4587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4588 struct net_device *dev = info->user_ptr[1];
c56589ed 4589 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4590 struct bss_parameters params;
c56589ed 4591 int err;
9f1ba906
JM		 4592
4593 memset(&params, 0, sizeof(params));
4594 /* default to not changing parameters */
4595 params.use_cts_prot = -1;
4596 params.use_short_preamble = -1;
4597 params.use_short_slot_time = -1;
fd8aaaf3 4598 params.ap_isolate = -1;
50b12f59 4599 params.ht_opmode = -1;
53cabad7
JB		 4600 params.p2p_ctwindow = -1;
4601 params.p2p_opp_ps = -1;
9f1ba906
JM		 4602
4603 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4604 params.use_cts_prot =
4605 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4606 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4607 params.use_short_preamble =
4608 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4609 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4610 params.use_short_slot_time =
4611 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4612 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4613 params.basic_rates =
4614 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4615 params.basic_rates_len =
4616 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4617 }
fd8aaaf3
FF		 4618 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4619 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4620 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4621 params.ht_opmode =
4622 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4623
53cabad7
JB		 4624 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4625 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4626 return -EINVAL;
4627 params.p2p_ctwindow =
4628 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4629 if (params.p2p_ctwindow < 0)
4630 return -EINVAL;
4631 if (params.p2p_ctwindow != 0 &&
4632 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4633 return -EINVAL;
4634 }
4635
4636 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4637 u8 tmp;
4638
4639 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4640 return -EINVAL;
4641 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4642 if (tmp > 1)
4643 return -EINVAL;
4644 params.p2p_opp_ps = tmp;
4645 if (params.p2p_opp_ps &&
4646 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4647 return -EINVAL;
4648 }
4649
4c476991
JB		 4650 if (!rdev->ops->change_bss)
4651 return -EOPNOTSUPP;
9f1ba906 4652
074ac8df 4653 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4654 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4655 return -EOPNOTSUPP;
3b85875a 4656
c56589ed
SW		 4657 wdev_lock(wdev);
4658 err = rdev_change_bss(rdev, dev, &params);
4659 wdev_unlock(wdev);
4660
4661 return err;
9f1ba906
JM		 4662}
4663
b54452b0 4664static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4665 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4666 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4667 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4668 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4669 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4670 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4671 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4672};
4673
4674static int parse_reg_rule(struct nlattr *tb[],
4675 struct ieee80211_reg_rule *reg_rule)
4676{
4677 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4678 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4679
4680 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4681 return -EINVAL;
4682 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4683 return -EINVAL;
4684 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4685 return -EINVAL;
b0dfd2ea
JD		 4686 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4687 return -EINVAL;
b2e1b302
LR		 4688 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4689 return -EINVAL;
4690
4691 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4692
4693 freq_range->start_freq_khz =
4694 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4695 freq_range->end_freq_khz =
4696 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4697 freq_range->max_bandwidth_khz =
4698 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4699
4700 power_rule->max_eirp =
4701 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4702
4703 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4704 power_rule->max_antenna_gain =
4705 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4706
089027e5
JD		 4707 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4708 reg_rule->dfs_cac_ms =
4709 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4710
b2e1b302
LR		 4711 return 0;
4712}
4713
4714static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4715{
b2e1b302 4716 char *data = NULL;
57b5ce07 4717 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4718
80778f18
LR		 4719 /*
4720 * You should only get this when cfg80211 hasn't yet initialized
4721 * completely when built-in to the kernel right between the time
4722 * window between nl80211_init() and regulatory_init(), if that is
4723 * even possible.
4724 */
458f4f9e 4725 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4726 return -EINPROGRESS;
80778f18 4727
57b5ce07
LR		 4728 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4729 user_reg_hint_type =
4730 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4731 else
4732 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4733
4734 switch (user_reg_hint_type) {
4735 case NL80211_USER_REG_HINT_USER:
4736 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4737 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4738 return -EINVAL;
4739
4740 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4741 return regulatory_hint_user(data, user_reg_hint_type);
4742 case NL80211_USER_REG_HINT_INDOOR:
4743 return regulatory_hint_indoor_user();
57b5ce07
LR		 4744 default:
4745 return -EINVAL;
4746 }
b2e1b302
LR		 4747}
4748
24bdd9f4 4749static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4750 struct genl_info *info)
93da9cc1 4751{
4c476991 4752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4753 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4754 struct wireless_dev *wdev = dev->ieee80211_ptr;
4755 struct mesh_config cur_params;
4756 int err = 0;
93da9cc1 4757 void *hdr;
4758 struct nlattr *pinfoattr;
4759 struct sk_buff *msg;
4760
29cbe68c
JB		 4761 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4762 return -EOPNOTSUPP;
4763
24bdd9f4 4764 if (!rdev->ops->get_mesh_config)
4c476991 4765 return -EOPNOTSUPP;
f3f92586 4766
29cbe68c
JB		 4767 wdev_lock(wdev);
4768 /* If not connected, get default parameters */
4769 if (!wdev->mesh_id_len)
4770 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4771 else
e35e4d28 4772 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4773 wdev_unlock(wdev);
4774
93da9cc1 4775 if (err)
4c476991 4776 return err;
93da9cc1 4777
4778 /* Draw up a netlink message to send back */
fd2120ca 4779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4780 if (!msg)
4781 return -ENOMEM;
15e47304 4782 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4783 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4784 if (!hdr)
efe1cf0c 4785 goto out;
24bdd9f4 4786 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4787 if (!pinfoattr)
4788 goto nla_put_failure;
9360ffd1
DM		 4789 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4790 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4791 cur_params.dot11MeshRetryTimeout) ||
4792 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4793 cur_params.dot11MeshConfirmTimeout) ||
4794 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4795 cur_params.dot11MeshHoldingTimeout) ||
4796 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4797 cur_params.dot11MeshMaxPeerLinks) ||
4798 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4799 cur_params.dot11MeshMaxRetries) ||
4800 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4801 cur_params.dot11MeshTTL) ||
4802 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4803 cur_params.element_ttl) ||
4804 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4805 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4806 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4807 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4808 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4809 cur_params.dot11MeshHWMPmaxPREQretries) ||
4810 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4811 cur_params.path_refresh_time) ||
4812 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4813 cur_params.min_discovery_timeout) ||
4814 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4815 cur_params.dot11MeshHWMPactivePathTimeout) ||
4816 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4817 cur_params.dot11MeshHWMPpreqMinInterval) ||
4818 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4819 cur_params.dot11MeshHWMPperrMinInterval) ||
4820 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4821 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4822 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4823 cur_params.dot11MeshHWMPRootMode) ||
4824 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4825 cur_params.dot11MeshHWMPRannInterval) ||
4826 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4827 cur_params.dot11MeshGateAnnouncementProtocol) ||
4828 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4829 cur_params.dot11MeshForwarding) ||
4830 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4831 cur_params.rssi_threshold) ||
4832 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4833 cur_params.ht_opmode) ||
4834 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4835 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4836 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4837 cur_params.dot11MeshHWMProotInterval) ||
4838 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4839 cur_params.dot11MeshHWMPconfirmationInterval) ||
4840 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4841 cur_params.power_mode) ||
4842 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4843 cur_params.dot11MeshAwakeWindowDuration) ||
4844 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4845 cur_params.plink_timeout))
9360ffd1 4846 goto nla_put_failure;
93da9cc1 4847 nla_nest_end(msg, pinfoattr);
4848 genlmsg_end(msg, hdr);
4c476991 4849 return genlmsg_reply(msg, info);
93da9cc1 4850
3b85875a 4851 nla_put_failure:
93da9cc1 4852 genlmsg_cancel(msg, hdr);
efe1cf0c 4853 out:
d080e275 4854 nlmsg_free(msg);
4c476991 4855 return -ENOBUFS;
93da9cc1 4856}
4857
b54452b0 4858static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4859 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4860 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4861 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4862 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4863 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4864 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4865 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4866 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4867 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4868 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4869 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4870 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4871 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4872 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4873 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4874 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4875 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4876 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4877 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4878 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4879 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4880 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4881 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4882 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4883 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4884 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4885 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4886 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4887};
4888
c80d545d
JC		 4889static const struct nla_policy
4890 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4891 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4892 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4893 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4894 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4895 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4896 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4897 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4898 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4899 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4900};
4901
24bdd9f4 4902static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4903 struct mesh_config *cfg,
4904 u32 *mask_out)
93da9cc1 4905{
93da9cc1 4906 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4907 u32 mask = 0;
93da9cc1 4908
ea54fba2
MP		 4909#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4910do { \
4911 if (tb[attr]) { \
4912 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4913 return -EINVAL; \
4914 cfg->param = fn(tb[attr]); \
4915 mask |= (1 << (attr - 1)); \
4916 } \
4917} while (0)
bd90fdcc
JB		 4918
4919
24bdd9f4 4920 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4921 return -EINVAL;
4922 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4923 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4924 nl80211_meshconf_params_policy))
93da9cc1 4925 return -EINVAL;
4926
93da9cc1 4927 /* This makes sure that there aren't more than 32 mesh config
4928 * parameters (otherwise our bitfield scheme would not work.) */
4929 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4930
4931 /* Fill in the params struct */
ea54fba2 4932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4933 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4934 nla_get_u16);
ea54fba2 4935 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4936 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4937 nla_get_u16);
ea54fba2 4938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4939 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4940 nla_get_u16);
ea54fba2 4941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4942 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4943 nla_get_u16);
ea54fba2 4944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4945 mask, NL80211_MESHCONF_MAX_RETRIES,
4946 nla_get_u8);
ea54fba2 4947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4948 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4949 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4950 mask, NL80211_MESHCONF_ELEMENT_TTL,
4951 nla_get_u8);
ea54fba2 4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4953 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4954 nla_get_u8);
ea54fba2
MP		 4955 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4956 1, 255, mask,
a4f606ea
CYY		 4957 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4958 nla_get_u32);
ea54fba2 4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4960 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4961 nla_get_u8);
ea54fba2 4962 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4963 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4964 nla_get_u32);
ea54fba2 4965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4966 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4967 nla_get_u16);
ea54fba2
MP		 4968 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4969 1, 65535, mask,
a4f606ea
CYY		 4970 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4971 nla_get_u32);
93da9cc1 4972 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4973 1, 65535, mask,
4974 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4975 nla_get_u16);
dca7e943 4976 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4977 1, 65535, mask,
4978 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4979 nla_get_u16);
93da9cc1 4980 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4981 dot11MeshHWMPnetDiameterTraversalTime,
4982 1, 65535, mask,
a4f606ea
CYY		 4983 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4984 nla_get_u16);
ea54fba2
MP		 4985 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4986 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4987 nla_get_u8);
4988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4989 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4990 nla_get_u16);
63c5723b 4991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4992 dot11MeshGateAnnouncementProtocol, 0, 1,
4993 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4994 nla_get_u8);
ea54fba2 4995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4996 mask, NL80211_MESHCONF_FORWARDING,
4997 nla_get_u8);
83374fe9 4998 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4999 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5000 nla_get_s32);
ea54fba2 5001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5002 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5003 nla_get_u16);
5004 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5005 1, 65535, mask,
ac1073a6
CYY		 5006 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5007 nla_get_u32);
ea54fba2 5008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5009 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5010 nla_get_u16);
5011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5012 dot11MeshHWMPconfirmationInterval,
5013 1, 65535, mask,
728b19e5 5014 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5015 nla_get_u16);
3b1c5a53
MP		 5016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5017 NL80211_MESH_POWER_ACTIVE,
5018 NL80211_MESH_POWER_MAX,
5019 mask, NL80211_MESHCONF_POWER_MODE,
5020 nla_get_u32);
5021 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5022 0, 65535, mask,
5023 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5024 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5025 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5026 nla_get_u32);
bd90fdcc
JB		 5027 if (mask_out)
5028 *mask_out = mask;
c80d545d 5029
bd90fdcc
JB		 5030 return 0;
5031
5032#undef FILL_IN_MESH_PARAM_IF_SET
5033}
5034
c80d545d
JC		 5035static int nl80211_parse_mesh_setup(struct genl_info *info,
5036 struct mesh_setup *setup)
5037{
bb2798d4 5038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5039 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5040
5041 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5042 return -EINVAL;
5043 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5044 info->attrs[NL80211_ATTR_MESH_SETUP],
5045 nl80211_mesh_setup_params_policy))
5046 return -EINVAL;
5047
d299a1f2
JC		 5048 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5049 setup->sync_method =
5050 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5051 IEEE80211_SYNC_METHOD_VENDOR :
5052 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5053
c80d545d
JC		 5054 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5055 setup->path_sel_proto =
5056 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5057 IEEE80211_PATH_PROTOCOL_VENDOR :
5058 IEEE80211_PATH_PROTOCOL_HWMP;
5059
5060 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5061 setup->path_metric =
5062 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5063 IEEE80211_PATH_METRIC_VENDOR :
5064 IEEE80211_PATH_METRIC_AIRTIME;
5065
581a8b0f
JC		 5066
5067 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5068 struct nlattr *ieattr =
581a8b0f 5069 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5070 if (!is_valid_ie_attr(ieattr))
5071 return -EINVAL;
581a8b0f
JC		 5072 setup->ie = nla_data(ieattr);
5073 setup->ie_len = nla_len(ieattr);
c80d545d 5074 }
bb2798d4
TP		 5075 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5076 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5077 return -EINVAL;
5078 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5079 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5080 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5081 if (setup->is_secure)
5082 setup->user_mpm = true;
c80d545d 5083
6e16d90b
CT		 5084 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5085 if (!setup->user_mpm)
5086 return -EINVAL;
5087 setup->auth_id =
5088 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5089 }
5090
c80d545d
JC		 5091 return 0;
5092}
5093
24bdd9f4 5094static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5095 struct genl_info *info)
bd90fdcc
JB		 5096{
5097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5098 struct net_device *dev = info->user_ptr[1];
29cbe68c 5099 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5100 struct mesh_config cfg;
5101 u32 mask;
5102 int err;
5103
29cbe68c
JB		 5104 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5105 return -EOPNOTSUPP;
5106
24bdd9f4 5107 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5108 return -EOPNOTSUPP;
5109
24bdd9f4 5110 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5111 if (err)
5112 return err;
5113
29cbe68c
JB		 5114 wdev_lock(wdev);
5115 if (!wdev->mesh_id_len)
5116 err = -ENOLINK;
5117
5118 if (!err)
e35e4d28 5119 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5120
5121 wdev_unlock(wdev);
5122
5123 return err;
93da9cc1 5124}
5125
f130347c
LR		 5126static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5127{
458f4f9e 5128 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5129 struct sk_buff *msg;
5130 void *hdr = NULL;
5131 struct nlattr *nl_reg_rules;
5132 unsigned int i;
f130347c
LR		 5133
5134 if (!cfg80211_regdomain)
5fe231e8 5135 return -EINVAL;
f130347c 5136
fd2120ca 5137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5138 if (!msg)
5139 return -ENOBUFS;
f130347c 5140
15e47304 5141 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5142 NL80211_CMD_GET_REG);
5143 if (!hdr)
efe1cf0c 5144 goto put_failure;
f130347c 5145
57b5ce07
LR		 5146 if (reg_last_request_cell_base() &&
5147 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5148 NL80211_USER_REG_HINT_CELL_BASE))
5149 goto nla_put_failure;
5150
458f4f9e
JB		 5151 rcu_read_lock();
5152 regdom = rcu_dereference(cfg80211_regdomain);
5153
5154 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5155 (regdom->dfs_region &&
5156 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5157 goto nla_put_failure_rcu;
5158
f130347c
LR		 5159 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5160 if (!nl_reg_rules)
458f4f9e 5161 goto nla_put_failure_rcu;
f130347c 5162
458f4f9e 5163 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5164 struct nlattr *nl_reg_rule;
5165 const struct ieee80211_reg_rule *reg_rule;
5166 const struct ieee80211_freq_range *freq_range;
5167 const struct ieee80211_power_rule *power_rule;
97524820 5168 unsigned int max_bandwidth_khz;
f130347c 5169
458f4f9e 5170 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5171 freq_range = &reg_rule->freq_range;
5172 power_rule = &reg_rule->power_rule;
5173
5174 nl_reg_rule = nla_nest_start(msg, i);
5175 if (!nl_reg_rule)
458f4f9e 5176 goto nla_put_failure_rcu;
f130347c 5177
97524820
JD		 5178 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5179 if (!max_bandwidth_khz)
5180 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5181 reg_rule);
5182
9360ffd1
DM		 5183 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5184 reg_rule->flags) ||
5185 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5186 freq_range->start_freq_khz) ||
5187 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5188 freq_range->end_freq_khz) ||
5189 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5190 max_bandwidth_khz) ||
9360ffd1
DM		 5191 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5192 power_rule->max_antenna_gain) ||
5193 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5194 power_rule->max_eirp) ||
5195 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5196 reg_rule->dfs_cac_ms))
458f4f9e 5197 goto nla_put_failure_rcu;
f130347c
LR		 5198
5199 nla_nest_end(msg, nl_reg_rule);
5200 }
458f4f9e 5201 rcu_read_unlock();
f130347c
LR		 5202
5203 nla_nest_end(msg, nl_reg_rules);
5204
5205 genlmsg_end(msg, hdr);
5fe231e8 5206 return genlmsg_reply(msg, info);
f130347c 5207
458f4f9e
JB		 5208nla_put_failure_rcu:
5209 rcu_read_unlock();
f130347c
LR		 5210nla_put_failure:
5211 genlmsg_cancel(msg, hdr);
efe1cf0c 5212put_failure:
d080e275 5213 nlmsg_free(msg);
5fe231e8 5214 return -EMSGSIZE;
f130347c
LR		 5215}
5216
b2e1b302
LR		 5217static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5218{
5219 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5220 struct nlattr *nl_reg_rule;
5221 char *alpha2 = NULL;
5222 int rem_reg_rules = 0, r = 0;
5223 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5224 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5225 struct ieee80211_regdomain *rd = NULL;
5226
5227 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5228 return -EINVAL;
5229
5230 if (!info->attrs[NL80211_ATTR_REG_RULES])
5231 return -EINVAL;
5232
5233 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5234
8b60b078
LR		 5235 if (info->attrs[NL80211_ATTR_DFS_REGION])
5236 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5237
b2e1b302 5238 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5239 rem_reg_rules) {
b2e1b302
LR		 5240 num_rules++;
5241 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5242 return -EINVAL;
b2e1b302
LR		 5243 }
5244
e438768f
LR		 5245 if (!reg_is_valid_request(alpha2))
5246 return -EINVAL;
5247
b2e1b302 5248 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5249 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5250
5251 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5252 if (!rd)
5253 return -ENOMEM;
b2e1b302
LR		 5254
5255 rd->n_reg_rules = num_rules;
5256 rd->alpha2[0] = alpha2[0];
5257 rd->alpha2[1] = alpha2[1];
5258
8b60b078
LR		 5259 /*
5260 * Disable DFS master mode if the DFS region was
5261 * not supported or known on this kernel.
5262 */
5263 if (reg_supported_dfs_region(dfs_region))
5264 rd->dfs_region = dfs_region;
5265
b2e1b302 5266 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5267 rem_reg_rules) {
ae811e21
JB		 5268 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5269 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5270 reg_rule_policy);
5271 if (r)
5272 goto bad_reg;
b2e1b302
LR		 5273 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5274 if (r)
5275 goto bad_reg;
5276
5277 rule_idx++;
5278
d0e18f83
LR		 5279 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5280 r = -EINVAL;
b2e1b302 5281 goto bad_reg;
d0e18f83 5282 }
b2e1b302
LR		 5283 }
5284
b2e1b302 5285 r = set_regdom(rd);
6913b49a 5286 /* set_regdom took ownership */
1a919318 5287 rd = NULL;
b2e1b302 5288
d2372b31 5289 bad_reg:
b2e1b302 5290 kfree(rd);
d0e18f83 5291 return r;
b2e1b302
LR		 5292}
5293
83f5e2cf
JB		 5294static int validate_scan_freqs(struct nlattr *freqs)
5295{
5296 struct nlattr *attr1, *attr2;
5297 int n_channels = 0, tmp1, tmp2;
5298
5299 nla_for_each_nested(attr1, freqs, tmp1) {
5300 n_channels++;
5301 /*
5302 * Some hardware has a limited channel list for
5303 * scanning, and it is pretty much nonsensical
5304 * to scan for a channel twice, so disallow that
5305 * and don't require drivers to check that the
5306 * channel list they get isn't longer than what
5307 * they can scan, as long as they can scan all
5308 * the channels they registered at once.
5309 */
5310 nla_for_each_nested(attr2, freqs, tmp2)
5311 if (attr1 != attr2 &&
5312 nla_get_u32(attr1) == nla_get_u32(attr2))
5313 return 0;
5314 }
5315
5316 return n_channels;
5317}
5318
2a519311
JB		 5319static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5320{
4c476991 5321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5322 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5323 struct cfg80211_scan_request *request;
2a519311
JB		 5324 struct nlattr *attr;
5325 struct wiphy *wiphy;
83f5e2cf 5326 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5327 size_t ie_len;
2a519311 5328
f4a11bb0
JB		 5329 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5330 return -EINVAL;
5331
79c97e97 5332 wiphy = &rdev->wiphy;
2a519311 5333
4c476991
JB		 5334 if (!rdev->ops->scan)
5335 return -EOPNOTSUPP;
2a519311 5336
f9d15d16 5337 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5338 err = -EBUSY;
5339 goto unlock;
5340 }
2a519311
JB		 5341
5342 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5343 n_channels = validate_scan_freqs(
5344 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5345 if (!n_channels) {
5346 err = -EINVAL;
5347 goto unlock;
5348 }
2a519311 5349 } else {
bdfbec2d 5350 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5351 }
5352
5353 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5354 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5355 n_ssids++;
5356
f9f47529
JB		 5357 if (n_ssids > wiphy->max_scan_ssids) {
5358 err = -EINVAL;
5359 goto unlock;
5360 }
2a519311 5361
70692ad2
JM		 5362 if (info->attrs[NL80211_ATTR_IE])
5363 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5364 else
5365 ie_len = 0;
5366
f9f47529
JB		 5367 if (ie_len > wiphy->max_scan_ie_len) {
5368 err = -EINVAL;
5369 goto unlock;
5370 }
18a83659 5371
2a519311 5372 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5373 + sizeof(*request->ssids) * n_ssids
5374 + sizeof(*request->channels) * n_channels
70692ad2 5375 + ie_len, GFP_KERNEL);
f9f47529
JB		 5376 if (!request) {
5377 err = -ENOMEM;
5378 goto unlock;
5379 }
2a519311 5380
2a519311 5381 if (n_ssids)
5ba63533 5382 request->ssids = (void *)&request->channels[n_channels];
2a519311 5383 request->n_ssids = n_ssids;
70692ad2
JM		 5384 if (ie_len) {
5385 if (request->ssids)
5386 request->ie = (void *)(request->ssids + n_ssids);
5387 else
5388 request->ie = (void *)(request->channels + n_channels);
5389 }
2a519311 5390
584991dc 5391 i = 0;
2a519311
JB		 5392 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5393 /* user specified, bail out if channel not found */
2a519311 5394 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5395 struct ieee80211_channel *chan;
5396
5397 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5398
5399 if (!chan) {
2a519311
JB		 5400 err = -EINVAL;
5401 goto out_free;
5402 }
584991dc
JB		 5403
5404 /* ignore disabled channels */
5405 if (chan->flags & IEEE80211_CHAN_DISABLED)
5406 continue;
5407
5408 request->channels[i] = chan;
2a519311
JB		 5409 i++;
5410 }
5411 } else {
34850ab2
JB		 5412 enum ieee80211_band band;
5413
2a519311 5414 /* all channels */
2a519311
JB		 5415 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5416 int j;
5417 if (!wiphy->bands[band])
5418 continue;
5419 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5420 struct ieee80211_channel *chan;
5421
5422 chan = &wiphy->bands[band]->channels[j];
5423
5424 if (chan->flags & IEEE80211_CHAN_DISABLED)
5425 continue;
5426
5427 request->channels[i] = chan;
2a519311
JB		 5428 i++;
5429 }
5430 }
5431 }
5432
584991dc
JB		 5433 if (!i) {
5434 err = -EINVAL;
5435 goto out_free;
5436 }
5437
5438 request->n_channels = i;
5439
2a519311
JB		 5440 i = 0;
5441 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5442 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5443 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5444 err = -EINVAL;
5445 goto out_free;
5446 }
57a27e1d 5447 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5448 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5449 i++;
5450 }
5451 }
5452
70692ad2
JM		 5453 if (info->attrs[NL80211_ATTR_IE]) {
5454 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5455 memcpy((void *)request->ie,
5456 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5457 request->ie_len);
5458 }
5459
34850ab2 5460 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5461 if (wiphy->bands[i])
5462 request->rates[i] =
5463 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5464
5465 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5466 nla_for_each_nested(attr,
5467 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5468 tmp) {
5469 enum ieee80211_band band = nla_type(attr);
5470
84404623 5471 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5472 err = -EINVAL;
5473 goto out_free;
5474 }
1b09cd82
FF		 5475
5476 if (!wiphy->bands[band])
5477 continue;
5478
34850ab2
JB		 5479 err = ieee80211_get_ratemask(wiphy->bands[band],
5480 nla_data(attr),
5481 nla_len(attr),
5482 &request->rates[band]);
5483 if (err)
5484 goto out_free;
5485 }
5486 }
5487
46856bbf 5488 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5489 request->flags = nla_get_u32(
5490 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5491 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5492 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5493 err = -EOPNOTSUPP;
5494 goto out_free;
5495 }
5496 }
ed473771 5497
e9f935e3
RM		 5498 request->no_cck =
5499 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5500
fd014284 5501 request->wdev = wdev;
79c97e97 5502 request->wiphy = &rdev->wiphy;
15d6030b 5503 request->scan_start = jiffies;
2a519311 5504
79c97e97 5505 rdev->scan_req = request;
e35e4d28 5506 err = rdev_scan(rdev, request);
2a519311 5507
463d0183 5508 if (!err) {
fd014284
JB		 5509 nl80211_send_scan_start(rdev, wdev);
5510 if (wdev->netdev)
5511 dev_hold(wdev->netdev);
4c476991 5512 } else {
2a519311 5513 out_free:
79c97e97 5514 rdev->scan_req = NULL;
2a519311
JB		 5515 kfree(request);
5516 }
3b85875a 5517
f9f47529 5518 unlock:
2a519311
JB		 5519 return err;
5520}
5521
807f8a8c
LC		 5522static int nl80211_start_sched_scan(struct sk_buff *skb,
5523 struct genl_info *info)
5524{
5525 struct cfg80211_sched_scan_request *request;
5526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5527 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5528 struct nlattr *attr;
5529 struct wiphy *wiphy;
a1f1c21c 5530 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5531 u32 interval;
807f8a8c
LC		 5532 enum ieee80211_band band;
5533 size_t ie_len;
a1f1c21c 5534 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5535 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5536
5537 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5538 !rdev->ops->sched_scan_start)
5539 return -EOPNOTSUPP;
5540
5541 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5542 return -EINVAL;
5543
bbe6ad6d
LC		 5544 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5545 return -EINVAL;
5546
5547 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5548 if (interval == 0)
5549 return -EINVAL;
5550
807f8a8c
LC		 5551 wiphy = &rdev->wiphy;
5552
5553 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5554 n_channels = validate_scan_freqs(
5555 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5556 if (!n_channels)
5557 return -EINVAL;
5558 } else {
bdfbec2d 5559 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5560 }
5561
5562 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5563 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5564 tmp)
5565 n_ssids++;
5566
93b6aa69 5567 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5568 return -EINVAL;
5569
ea73cbce
JB		 5570 /*
5571 * First, count the number of 'real' matchsets. Due to an issue with
5572 * the old implementation, matchsets containing only the RSSI attribute
5573 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5574 * RSSI for all matchsets, rather than their own matchset for reporting
5575 * all APs with a strong RSSI. This is needed to be compatible with
5576 * older userspace that treated a matchset with only the RSSI as the
5577 * global RSSI for all other matchsets - if there are other matchsets.
5578 */
5579 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5580 nla_for_each_nested(attr,
5581 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5582 tmp) {
5583 struct nlattr *rssi;
5584
5585 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5586 nla_data(attr), nla_len(attr),
5587 nl80211_match_policy);
5588 if (err)
5589 return err;
5590 /* add other standalone attributes here */
5591 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5592 n_match_sets++;
5593 continue;
5594 }
5595 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5596 if (rssi)
5597 default_match_rssi = nla_get_s32(rssi);
5598 }
5599 }
5600
5601 /* However, if there's no other matchset, add the RSSI one */
5602 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5603 n_match_sets = 1;
a1f1c21c
LC		 5604
5605 if (n_match_sets > wiphy->max_match_sets)
5606 return -EINVAL;
5607
807f8a8c
LC		 5608 if (info->attrs[NL80211_ATTR_IE])
5609 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5610 else
5611 ie_len = 0;
5612
5a865bad 5613 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5614 return -EINVAL;
5615
c10841ca
LC		 5616 if (rdev->sched_scan_req) {
5617 err = -EINPROGRESS;
5618 goto out;
5619 }
5620
807f8a8c 5621 request = kzalloc(sizeof(*request)
a2cd43c5 5622 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5623 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5624 + sizeof(*request->channels) * n_channels
807f8a8c 5625 + ie_len, GFP_KERNEL);
c10841ca
LC		 5626 if (!request) {
5627 err = -ENOMEM;
5628 goto out;
5629 }
807f8a8c
LC		 5630
5631 if (n_ssids)
5632 request->ssids = (void *)&request->channels[n_channels];
5633 request->n_ssids = n_ssids;
5634 if (ie_len) {
5635 if (request->ssids)
5636 request->ie = (void *)(request->ssids + n_ssids);
5637 else
5638 request->ie = (void *)(request->channels + n_channels);
5639 }
5640
a1f1c21c
LC		 5641 if (n_match_sets) {
5642 if (request->ie)
5643 request->match_sets = (void *)(request->ie + ie_len);
5644 else if (request->ssids)
5645 request->match_sets =
5646 (void *)(request->ssids + n_ssids);
5647 else
5648 request->match_sets =
5649 (void *)(request->channels + n_channels);
5650 }
5651 request->n_match_sets = n_match_sets;
5652
807f8a8c
LC		 5653 i = 0;
5654 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5655 /* user specified, bail out if channel not found */
5656 nla_for_each_nested(attr,
5657 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5658 tmp) {
5659 struct ieee80211_channel *chan;
5660
5661 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5662
5663 if (!chan) {
5664 err = -EINVAL;
5665 goto out_free;
5666 }
5667
5668 /* ignore disabled channels */
5669 if (chan->flags & IEEE80211_CHAN_DISABLED)
5670 continue;
5671
5672 request->channels[i] = chan;
5673 i++;
5674 }
5675 } else {
5676 /* all channels */
5677 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5678 int j;
5679 if (!wiphy->bands[band])
5680 continue;
5681 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5682 struct ieee80211_channel *chan;
5683
5684 chan = &wiphy->bands[band]->channels[j];
5685
5686 if (chan->flags & IEEE80211_CHAN_DISABLED)
5687 continue;
5688
5689 request->channels[i] = chan;
5690 i++;
5691 }
5692 }
5693 }
5694
5695 if (!i) {
5696 err = -EINVAL;
5697 goto out_free;
5698 }
5699
5700 request->n_channels = i;
5701
5702 i = 0;
5703 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5704 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5705 tmp) {
57a27e1d 5706 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5707 err = -EINVAL;
5708 goto out_free;
5709 }
57a27e1d 5710 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5711 memcpy(request->ssids[i].ssid, nla_data(attr),
5712 nla_len(attr));
807f8a8c
LC		 5713 i++;
5714 }
5715 }
5716
a1f1c21c
LC		 5717 i = 0;
5718 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5719 nla_for_each_nested(attr,
5720 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5721 tmp) {
88e920b4 5722 struct nlattr *ssid, *rssi;
a1f1c21c 5723
ae811e21
JB		 5724 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5725 nla_data(attr), nla_len(attr),
5726 nl80211_match_policy);
5727 if (err)
5728 goto out_free;
4a4ab0d7 5729 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5730 if (ssid) {
ea73cbce
JB		 5731 if (WARN_ON(i >= n_match_sets)) {
5732 /* this indicates a programming error,
5733 * the loop above should have verified
5734 * things properly
5735 */
5736 err = -EINVAL;
5737 goto out_free;
5738 }
5739
a1f1c21c
LC		 5740 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5741 err = -EINVAL;
5742 goto out_free;
5743 }
5744 memcpy(request->match_sets[i].ssid.ssid,
5745 nla_data(ssid), nla_len(ssid));
5746 request->match_sets[i].ssid.ssid_len =
5747 nla_len(ssid);
ea73cbce
JB		 5748 /* special attribute - old implemenation w/a */
5749 request->match_sets[i].rssi_thold =
5750 default_match_rssi;
5751 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5752 if (rssi)
5753 request->match_sets[i].rssi_thold =
5754 nla_get_s32(rssi);
a1f1c21c
LC		 5755 }
5756 i++;
5757 }
ea73cbce
JB		 5758
5759 /* there was no other matchset, so the RSSI one is alone */
5760 if (i == 0)
5761 request->match_sets[0].rssi_thold = default_match_rssi;
5762
5763 request->min_rssi_thold = INT_MAX;
5764 for (i = 0; i < n_match_sets; i++)
5765 request->min_rssi_thold =
5766 min(request->match_sets[i].rssi_thold,
5767 request->min_rssi_thold);
5768 } else {
5769 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5770 }
5771
9900e484
JB		 5772 if (ie_len) {
5773 request->ie_len = ie_len;
807f8a8c
LC		 5774 memcpy((void *)request->ie,
5775 nla_data(info->attrs[NL80211_ATTR_IE]),
5776 request->ie_len);
5777 }
5778
46856bbf 5779 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5780 request->flags = nla_get_u32(
5781 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5782 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5783 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5784 err = -EOPNOTSUPP;
5785 goto out_free;
5786 }
5787 }
ed473771 5788
807f8a8c
LC		 5789 request->dev = dev;
5790 request->wiphy = &rdev->wiphy;
bbe6ad6d 5791 request->interval = interval;
15d6030b 5792 request->scan_start = jiffies;
807f8a8c 5793
e35e4d28 5794 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5795 if (!err) {
5796 rdev->sched_scan_req = request;
5797 nl80211_send_sched_scan(rdev, dev,
5798 NL80211_CMD_START_SCHED_SCAN);
5799 goto out;
5800 }
5801
5802out_free:
5803 kfree(request);
5804out:
5805 return err;
5806}
5807
5808static int nl80211_stop_sched_scan(struct sk_buff *skb,
5809 struct genl_info *info)
5810{
5811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5812
5813 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5814 !rdev->ops->sched_scan_stop)
5815 return -EOPNOTSUPP;
5816
5fe231e8 5817 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5818}
5819
04f39047
SW		 5820static int nl80211_start_radar_detection(struct sk_buff *skb,
5821 struct genl_info *info)
5822{
5823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5824 struct net_device *dev = info->user_ptr[1];
5825 struct wireless_dev *wdev = dev->ieee80211_ptr;
5826 struct cfg80211_chan_def chandef;
55f7435c 5827 enum nl80211_dfs_regions dfs_region;
31559f35 5828 unsigned int cac_time_ms;
04f39047
SW		 5829 int err;
5830
55f7435c
LR		 5831 dfs_region = reg_get_dfs_region(wdev->wiphy);
5832 if (dfs_region == NL80211_DFS_UNSET)
5833 return -EINVAL;
5834
04f39047
SW		 5835 err = nl80211_parse_chandef(rdev, info, &chandef);
5836 if (err)
5837 return err;
5838
ff311bc1
SW		 5839 if (netif_carrier_ok(dev))
5840 return -EBUSY;
5841
04f39047
SW		 5842 if (wdev->cac_started)
5843 return -EBUSY;
5844
2beb6dab 5845 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5846 wdev->iftype);
04f39047
SW		 5847 if (err < 0)
5848 return err;
5849
5850 if (err == 0)
5851 return -EINVAL;
5852
fe7c3a1f 5853 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5854 return -EINVAL;
5855
5856 if (!rdev->ops->start_radar_detection)
5857 return -EOPNOTSUPP;
5858
31559f35
JD		 5859 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5860 if (WARN_ON(!cac_time_ms))
5861 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5862
5863 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5864 cac_time_ms);
04f39047 5865 if (!err) {
9e0e2961 5866 wdev->chandef = chandef;
04f39047
SW		 5867 wdev->cac_started = true;
5868 wdev->cac_start_time = jiffies;
31559f35 5869 wdev->cac_time_ms = cac_time_ms;
04f39047 5870 }
04f39047
SW		 5871 return err;
5872}
5873
16ef1fe2
SW		 5874static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5875{
5876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5877 struct net_device *dev = info->user_ptr[1];
5878 struct wireless_dev *wdev = dev->ieee80211_ptr;
5879 struct cfg80211_csa_settings params;
5880 /* csa_attrs is defined static to avoid waste of stack size - this
5881 * function is called under RTNL lock, so this should not be a problem.
5882 */
5883 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5884 u8 radar_detect_width = 0;
5885 int err;
ee4bc9e7 5886 bool need_new_beacon = false;
9a774c78 5887 int len, i;
16ef1fe2
SW		 5888
5889 if (!rdev->ops->channel_switch ||
5890 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5891 return -EOPNOTSUPP;
5892
ee4bc9e7
SW		 5893 switch (dev->ieee80211_ptr->iftype) {
5894 case NL80211_IFTYPE_AP:
5895 case NL80211_IFTYPE_P2P_GO:
5896 need_new_beacon = true;
5897
5898 /* useless if AP is not running */
5899 if (!wdev->beacon_interval)
1ff79dfa 5900 return -ENOTCONN;
ee4bc9e7
SW		 5901 break;
5902 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5903 if (!wdev->ssid_len)
5904 return -ENOTCONN;
5905 break;
c6da674a 5906 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5907 if (!wdev->mesh_id_len)
5908 return -ENOTCONN;
ee4bc9e7
SW		 5909 break;
5910 default:
16ef1fe2 5911 return -EOPNOTSUPP;
ee4bc9e7 5912 }
16ef1fe2
SW		 5913
5914 memset(&params, 0, sizeof(params));
5915
5916 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5917 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5918 return -EINVAL;
5919
5920 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5921 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5922 return -EINVAL;
5923
5924 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5925
ee4bc9e7
SW		 5926 if (!need_new_beacon)
5927 goto skip_beacons;
5928
16ef1fe2
SW		 5929 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5930 if (err)
5931 return err;
5932
5933 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5934 info->attrs[NL80211_ATTR_CSA_IES],
5935 nl80211_policy);
5936 if (err)
5937 return err;
5938
5939 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5940 if (err)
5941 return err;
5942
5943 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5944 return -EINVAL;
5945
9a774c78
AO		 5946 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5947 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5948 return -EINVAL;
5949
9a774c78
AO		 5950 params.n_counter_offsets_beacon = len / sizeof(u16);
5951 if (rdev->wiphy.max_num_csa_counters &&
5952 (params.n_counter_offsets_beacon >
5953 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 5954 return -EINVAL;
5955
9a774c78
AO		 5956 params.counter_offsets_beacon =
5957 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5958
5959 /* sanity checks - counters should fit and be the same */
5960 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5961 u16 offset = params.counter_offsets_beacon[i];
5962
5963 if (offset >= params.beacon_csa.tail_len)
5964 return -EINVAL;
5965
5966 if (params.beacon_csa.tail[offset] != params.count)
5967 return -EINVAL;
5968 }
5969
16ef1fe2 5970 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 5971 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5972 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5973 return -EINVAL;
5974
9a774c78
AO		 5975 params.n_counter_offsets_presp = len / sizeof(u16);
5976 if (rdev->wiphy.max_num_csa_counters &&
5977 (params.n_counter_offsets_beacon >
5978 rdev->wiphy.max_num_csa_counters))
16ef1fe2 5979 return -EINVAL;
9a774c78
AO		 5980
5981 params.counter_offsets_presp =
5982 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5983
5984 /* sanity checks - counters should fit and be the same */
5985 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5986 u16 offset = params.counter_offsets_presp[i];
5987
5988 if (offset >= params.beacon_csa.probe_resp_len)
5989 return -EINVAL;
5990
5991 if (params.beacon_csa.probe_resp[offset] !=
5992 params.count)
5993 return -EINVAL;
5994 }
16ef1fe2
SW		 5995 }
5996
ee4bc9e7 5997skip_beacons:
16ef1fe2
SW		 5998 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5999 if (err)
6000 return err;
6001
174e0cd2
IP		 6002 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6003 wdev->iftype))
16ef1fe2
SW		 6004 return -EINVAL;
6005
2beb6dab
LC		 6006 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6007 &params.chandef,
6008 wdev->iftype);
6009 if (err < 0)
6010 return err;
6011
6012 if (err > 0) {
6013 radar_detect_width = BIT(params.chandef.width);
6014 params.radar_required = true;
16ef1fe2
SW		 6015 }
6016
16ef1fe2
SW		 6017 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6018 params.block_tx = true;
6019
c56589ed
SW		 6020 wdev_lock(wdev);
6021 err = rdev_channel_switch(rdev, dev, &params);
6022 wdev_unlock(wdev);
6023
6024 return err;
16ef1fe2
SW		 6025}
6026
9720bb3a
JB		 6027static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6028 u32 seq, int flags,
2a519311 6029 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6030 struct wireless_dev *wdev,
6031 struct cfg80211_internal_bss *intbss)
2a519311 6032{
48ab905d 6033 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6034 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6035 void *hdr;
6036 struct nlattr *bss;
48ab905d
JB		 6037
6038 ASSERT_WDEV_LOCK(wdev);
2a519311 6039
15e47304 6040 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6041 NL80211_CMD_NEW_SCAN_RESULTS);
6042 if (!hdr)
6043 return -1;
6044
9720bb3a
JB		 6045 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6046
97990a06
JB		 6047 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6048 goto nla_put_failure;
6049 if (wdev->netdev &&
9360ffd1
DM		 6050 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6051 goto nla_put_failure;
97990a06
JB		 6052 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6053 goto nla_put_failure;
2a519311
JB		 6054
6055 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6056 if (!bss)
6057 goto nla_put_failure;
9360ffd1 6058 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6059 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6060 goto nla_put_failure;
9caf0364
JB		 6061
6062 rcu_read_lock();
0e227084
JB		 6063 /* indicate whether we have probe response data or not */
6064 if (rcu_access_pointer(res->proberesp_ies) &&
6065 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6066 goto fail_unlock_rcu;
6067
6068 /* this pointer prefers to be pointed to probe response data
6069 * but is always valid
6070 */
9caf0364 6071 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6072 if (ies) {
6073 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6074 goto fail_unlock_rcu;
8cef2c9d
JB		 6075 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6076 ies->len, ies->data))
6077 goto fail_unlock_rcu;
9caf0364 6078 }
0e227084
JB		 6079
6080 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6081 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6082 if (ies && ies->from_beacon) {
6083 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6084 goto fail_unlock_rcu;
6085 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6086 ies->len, ies->data))
6087 goto fail_unlock_rcu;
9caf0364
JB		 6088 }
6089 rcu_read_unlock();
6090
9360ffd1
DM		 6091 if (res->beacon_interval &&
6092 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6093 goto nla_put_failure;
6094 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6095 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6096 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6097 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6098 jiffies_to_msecs(jiffies - intbss->ts)))
6099 goto nla_put_failure;
2a519311 6100
77965c97 6101 switch (rdev->wiphy.signal_type) {
2a519311 6102 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6103 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6104 goto nla_put_failure;
2a519311
JB		 6105 break;
6106 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6107 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6108 goto nla_put_failure;
2a519311
JB		 6109 break;
6110 default:
6111 break;
6112 }
6113
48ab905d 6114 switch (wdev->iftype) {
074ac8df 6115 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6116 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6117 if (intbss == wdev->current_bss &&
6118 nla_put_u32(msg, NL80211_BSS_STATUS,
6119 NL80211_BSS_STATUS_ASSOCIATED))
6120 goto nla_put_failure;
48ab905d
JB		 6121 break;
6122 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6123 if (intbss == wdev->current_bss &&
6124 nla_put_u32(msg, NL80211_BSS_STATUS,
6125 NL80211_BSS_STATUS_IBSS_JOINED))
6126 goto nla_put_failure;
48ab905d
JB		 6127 break;
6128 default:
6129 break;
6130 }
6131
2a519311
JB		 6132 nla_nest_end(msg, bss);
6133
6134 return genlmsg_end(msg, hdr);
6135
8cef2c9d
JB		 6136 fail_unlock_rcu:
6137 rcu_read_unlock();
2a519311
JB		 6138 nla_put_failure:
6139 genlmsg_cancel(msg, hdr);
6140 return -EMSGSIZE;
6141}
6142
97990a06 6143static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6144{
48ab905d 6145 struct cfg80211_registered_device *rdev;
2a519311 6146 struct cfg80211_internal_bss *scan;
48ab905d 6147 struct wireless_dev *wdev;
97990a06 6148 int start = cb->args[2], idx = 0;
2a519311
JB		 6149 int err;
6150
97990a06 6151 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6152 if (err)
6153 return err;
2a519311 6154
48ab905d
JB		 6155 wdev_lock(wdev);
6156 spin_lock_bh(&rdev->bss_lock);
6157 cfg80211_bss_expire(rdev);
6158
9720bb3a
JB		 6159 cb->seq = rdev->bss_generation;
6160
48ab905d 6161 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6162 if (++idx <= start)
6163 continue;
9720bb3a 6164 if (nl80211_send_bss(skb, cb,
2a519311 6165 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6166 rdev, wdev, scan) < 0) {
2a519311 6167 idx--;
67748893 6168 break;
2a519311
JB		 6169 }
6170 }
6171
48ab905d
JB		 6172 spin_unlock_bh(&rdev->bss_lock);
6173 wdev_unlock(wdev);
2a519311 6174
97990a06
JB		 6175 cb->args[2] = idx;
6176 nl80211_finish_wdev_dump(rdev);
2a519311 6177
67748893 6178 return skb->len;
2a519311
JB		 6179}
6180
15e47304 6181static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6182 int flags, struct net_device *dev,
6183 struct survey_info *survey)
6184{
6185 void *hdr;
6186 struct nlattr *infoattr;
6187
15e47304 6188 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6189 NL80211_CMD_NEW_SURVEY_RESULTS);
6190 if (!hdr)
6191 return -ENOMEM;
6192
9360ffd1
DM		 6193 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6194 goto nla_put_failure;
61fa713c
HS		 6195
6196 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6197 if (!infoattr)
6198 goto nla_put_failure;
6199
9360ffd1
DM		 6200 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6201 survey->channel->center_freq))
6202 goto nla_put_failure;
6203
6204 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6205 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6206 goto nla_put_failure;
6207 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6208 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6209 goto nla_put_failure;
6210 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6211 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6212 survey->channel_time))
6213 goto nla_put_failure;
6214 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6215 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6216 survey->channel_time_busy))
6217 goto nla_put_failure;
6218 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6219 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6220 survey->channel_time_ext_busy))
6221 goto nla_put_failure;
6222 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6223 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6224 survey->channel_time_rx))
6225 goto nla_put_failure;
6226 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6227 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6228 survey->channel_time_tx))
6229 goto nla_put_failure;
61fa713c
HS		 6230
6231 nla_nest_end(msg, infoattr);
6232
6233 return genlmsg_end(msg, hdr);
6234
6235 nla_put_failure:
6236 genlmsg_cancel(msg, hdr);
6237 return -EMSGSIZE;
6238}
6239
6240static int nl80211_dump_survey(struct sk_buff *skb,
6241 struct netlink_callback *cb)
6242{
6243 struct survey_info survey;
1b8ec87a 6244 struct cfg80211_registered_device *rdev;
97990a06
JB		 6245 struct wireless_dev *wdev;
6246 int survey_idx = cb->args[2];
61fa713c
HS		 6247 int res;
6248
1b8ec87a 6249 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6250 if (res)
6251 return res;
61fa713c 6252
97990a06
JB		 6253 if (!wdev->netdev) {
6254 res = -EINVAL;
6255 goto out_err;
6256 }
6257
1b8ec87a 6258 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6259 res = -EOPNOTSUPP;
6260 goto out_err;
6261 }
6262
6263 while (1) {
180cdc79
LR		 6264 struct ieee80211_channel *chan;
6265
1b8ec87a 6266 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6267 if (res == -ENOENT)
6268 break;
6269 if (res)
6270 goto out_err;
6271
180cdc79
LR		 6272 /* Survey without a channel doesn't make sense */
6273 if (!survey.channel) {
6274 res = -EINVAL;
6275 goto out;
6276 }
6277
1b8ec87a 6278 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6279 survey.channel->center_freq);
6280 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6281 survey_idx++;
6282 continue;
6283 }
6284
61fa713c 6285 if (nl80211_send_survey(skb,
15e47304 6286 NETLINK_CB(cb->skb).portid,
61fa713c 6287 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6288 wdev->netdev, &survey) < 0)
61fa713c
HS		 6289 goto out;
6290 survey_idx++;
6291 }
6292
6293 out:
97990a06 6294 cb->args[2] = survey_idx;
61fa713c
HS		 6295 res = skb->len;
6296 out_err:
1b8ec87a 6297 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6298 return res;
6299}
6300
b23aa676
SO		 6301static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6302{
6303 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6304 NL80211_WPA_VERSION_2));
6305}
6306
636a5d36
JM		 6307static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6308{
4c476991
JB		 6309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6310 struct net_device *dev = info->user_ptr[1];
19957bb3 6311 struct ieee80211_channel *chan;
e39e5b5e
JM		 6312 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6313 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6314 enum nl80211_auth_type auth_type;
fffd0934 6315 struct key_parse key;
d5cdfacb 6316 bool local_state_change;
636a5d36 6317
f4a11bb0
JB		 6318 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6319 return -EINVAL;
6320
6321 if (!info->attrs[NL80211_ATTR_MAC])
6322 return -EINVAL;
6323
1778092e
JM		 6324 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6325 return -EINVAL;
6326
19957bb3
JB		 6327 if (!info->attrs[NL80211_ATTR_SSID])
6328 return -EINVAL;
6329
6330 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6331 return -EINVAL;
6332
fffd0934
JB		 6333 err = nl80211_parse_key(info, &key);
6334 if (err)
6335 return err;
6336
6337 if (key.idx >= 0) {
e31b8213
JB		 6338 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6339 return -EINVAL;
fffd0934
JB		 6340 if (!key.p.key || !key.p.key_len)
6341 return -EINVAL;
6342 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6343 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6344 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6345 key.p.key_len != WLAN_KEY_LEN_WEP104))
6346 return -EINVAL;
6347 if (key.idx > 4)
6348 return -EINVAL;
6349 } else {
6350 key.p.key_len = 0;
6351 key.p.key = NULL;
6352 }
6353
afea0b7a
JB		 6354 if (key.idx >= 0) {
6355 int i;
6356 bool ok = false;
6357 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6358 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6359 ok = true;
6360 break;
6361 }
6362 }
4c476991
JB		 6363 if (!ok)
6364 return -EINVAL;
afea0b7a
JB		 6365 }
6366
4c476991
JB		 6367 if (!rdev->ops->auth)
6368 return -EOPNOTSUPP;
636a5d36 6369
074ac8df 6370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6371 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6372 return -EOPNOTSUPP;
eec60b03 6373
19957bb3 6374 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6375 chan = nl80211_get_valid_chan(&rdev->wiphy,
6376 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6377 if (!chan)
4c476991 6378 return -EINVAL;
636a5d36 6379
19957bb3
JB		 6380 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6381 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6382
6383 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6384 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6385 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6386 }
6387
19957bb3 6388 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6389 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6390 return -EINVAL;
636a5d36 6391
e39e5b5e
JM		 6392 if (auth_type == NL80211_AUTHTYPE_SAE &&
6393 !info->attrs[NL80211_ATTR_SAE_DATA])
6394 return -EINVAL;
6395
6396 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6397 if (auth_type != NL80211_AUTHTYPE_SAE)
6398 return -EINVAL;
6399 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6400 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6401 /* need to include at least Auth Transaction and Status Code */
6402 if (sae_data_len < 4)
6403 return -EINVAL;
6404 }
6405
d5cdfacb
JM		 6406 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6407
95de817b
JB		 6408 /*
6409 * Since we no longer track auth state, ignore
6410 * requests to only change local state.
6411 */
6412 if (local_state_change)
6413 return 0;
6414
91bf9b26
JB		 6415 wdev_lock(dev->ieee80211_ptr);
6416 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6417 ssid, ssid_len, ie, ie_len,
6418 key.p.key, key.p.key_len, key.idx,
6419 sae_data, sae_data_len);
6420 wdev_unlock(dev->ieee80211_ptr);
6421 return err;
636a5d36
JM		 6422}
6423
c0692b8f
JB		 6424static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6425 struct genl_info *info,
3dc27d25
JB		 6426 struct cfg80211_crypto_settings *settings,
6427 int cipher_limit)
b23aa676 6428{
c0b2bbd8
JB		 6429 memset(settings, 0, sizeof(*settings));
6430
b23aa676
SO		 6431 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6432
c0692b8f
JB		 6433 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6434 u16 proto;
6435 proto = nla_get_u16(
6436 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6437 settings->control_port_ethertype = cpu_to_be16(proto);
6438 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6439 proto != ETH_P_PAE)
6440 return -EINVAL;
6441 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6442 settings->control_port_no_encrypt = true;
6443 } else
6444 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6445
b23aa676
SO		 6446 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6447 void *data;
6448 int len, i;
6449
6450 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6451 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6452 settings->n_ciphers_pairwise = len / sizeof(u32);
6453
6454 if (len % sizeof(u32))
6455 return -EINVAL;
6456
3dc27d25 6457 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6458 return -EINVAL;
6459
6460 memcpy(settings->ciphers_pairwise, data, len);
6461
6462 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6463 if (!cfg80211_supported_cipher_suite(
6464 &rdev->wiphy,
b23aa676
SO		 6465 settings->ciphers_pairwise[i]))
6466 return -EINVAL;
6467 }
6468
6469 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6470 settings->cipher_group =
6471 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6472 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6473 settings->cipher_group))
b23aa676
SO		 6474 return -EINVAL;
6475 }
6476
6477 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6478 settings->wpa_versions =
6479 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6480 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6481 return -EINVAL;
6482 }
6483
6484 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6485 void *data;
6d30240e 6486 int len;
b23aa676
SO		 6487
6488 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6489 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6490 settings->n_akm_suites = len / sizeof(u32);
6491
6492 if (len % sizeof(u32))
6493 return -EINVAL;
6494
1b9ca027
JM		 6495 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6496 return -EINVAL;
6497
b23aa676 6498 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6499 }
6500
6501 return 0;
6502}
6503
636a5d36
JM		 6504static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6505{
4c476991
JB		 6506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6507 struct net_device *dev = info->user_ptr[1];
f444de05 6508 struct ieee80211_channel *chan;
f62fab73
JB		 6509 struct cfg80211_assoc_request req = {};
6510 const u8 *bssid, *ssid;
6511 int err, ssid_len = 0;
636a5d36 6512
f4a11bb0
JB		 6513 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6514 return -EINVAL;
6515
6516 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6517 !info->attrs[NL80211_ATTR_SSID] ||
6518 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6519 return -EINVAL;
6520
4c476991
JB		 6521 if (!rdev->ops->assoc)
6522 return -EOPNOTSUPP;
636a5d36 6523
074ac8df 6524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6525 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6526 return -EOPNOTSUPP;
eec60b03 6527
19957bb3 6528 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6529
664834de
JM		 6530 chan = nl80211_get_valid_chan(&rdev->wiphy,
6531 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6532 if (!chan)
4c476991 6533 return -EINVAL;
636a5d36 6534
19957bb3
JB		 6535 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6536 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6537
6538 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6539 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6540 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6541 }
6542
dc6382ce 6543 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6544 enum nl80211_mfp mfp =
dc6382ce 6545 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6546 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6547 req.use_mfp = true;
4c476991
JB		 6548 else if (mfp != NL80211_MFP_NO)
6549 return -EINVAL;
dc6382ce
JM		 6550 }
6551
3e5d7649 6552 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6553 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6554
7e7c8926 6555 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6556 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6557
6558 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6559 memcpy(&req.ht_capa_mask,
6560 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6561 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6562
6563 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6564 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6565 return -EINVAL;
f62fab73
JB		 6566 memcpy(&req.ht_capa,
6567 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6568 sizeof(req.ht_capa));
7e7c8926
BG		 6569 }
6570
ee2aca34 6571 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6572 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6573
6574 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6575 memcpy(&req.vht_capa_mask,
6576 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6577 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6578
6579 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6580 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6581 return -EINVAL;
f62fab73
JB		 6582 memcpy(&req.vht_capa,
6583 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6584 sizeof(req.vht_capa));
ee2aca34
JB		 6585 }
6586
f62fab73 6587 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6588 if (!err) {
6589 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6590 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6591 ssid, ssid_len, &req);
91bf9b26
JB		 6592 wdev_unlock(dev->ieee80211_ptr);
6593 }
636a5d36 6594
636a5d36
JM		 6595 return err;
6596}
6597
6598static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6599{
4c476991
JB		 6600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6601 struct net_device *dev = info->user_ptr[1];
19957bb3 6602 const u8 *ie = NULL, *bssid;
91bf9b26 6603 int ie_len = 0, err;
19957bb3 6604 u16 reason_code;
d5cdfacb 6605 bool local_state_change;
636a5d36 6606
f4a11bb0
JB		 6607 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6608 return -EINVAL;
6609
6610 if (!info->attrs[NL80211_ATTR_MAC])
6611 return -EINVAL;
6612
6613 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6614 return -EINVAL;
6615
4c476991
JB		 6616 if (!rdev->ops->deauth)
6617 return -EOPNOTSUPP;
636a5d36 6618
074ac8df 6619 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6620 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6621 return -EOPNOTSUPP;
eec60b03 6622
19957bb3 6623 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6624
19957bb3
JB		 6625 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6626 if (reason_code == 0) {
f4a11bb0 6627 /* Reason Code 0 is reserved */
4c476991 6628 return -EINVAL;
255e737e 6629 }
636a5d36
JM		 6630
6631 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6632 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6633 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6634 }
6635
d5cdfacb
JM		 6636 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6637
91bf9b26
JB		 6638 wdev_lock(dev->ieee80211_ptr);
6639 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6640 local_state_change);
6641 wdev_unlock(dev->ieee80211_ptr);
6642 return err;
636a5d36
JM		 6643}
6644
6645static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6646{
4c476991
JB		 6647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6648 struct net_device *dev = info->user_ptr[1];
19957bb3 6649 const u8 *ie = NULL, *bssid;
91bf9b26 6650 int ie_len = 0, err;
19957bb3 6651 u16 reason_code;
d5cdfacb 6652 bool local_state_change;
636a5d36 6653
f4a11bb0
JB		 6654 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6655 return -EINVAL;
6656
6657 if (!info->attrs[NL80211_ATTR_MAC])
6658 return -EINVAL;
6659
6660 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6661 return -EINVAL;
6662
4c476991
JB		 6663 if (!rdev->ops->disassoc)
6664 return -EOPNOTSUPP;
636a5d36 6665
074ac8df 6666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6667 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6668 return -EOPNOTSUPP;
eec60b03 6669
19957bb3 6670 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6671
19957bb3
JB		 6672 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6673 if (reason_code == 0) {
f4a11bb0 6674 /* Reason Code 0 is reserved */
4c476991 6675 return -EINVAL;
255e737e 6676 }
636a5d36
JM		 6677
6678 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6679 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6680 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6681 }
6682
d5cdfacb
JM		 6683 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6684
91bf9b26
JB		 6685 wdev_lock(dev->ieee80211_ptr);
6686 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6687 local_state_change);
6688 wdev_unlock(dev->ieee80211_ptr);
6689 return err;
636a5d36
JM		 6690}
6691
dd5b4cc7
FF		 6692static bool
6693nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6694 int mcast_rate[IEEE80211_NUM_BANDS],
6695 int rateval)
6696{
6697 struct wiphy *wiphy = &rdev->wiphy;
6698 bool found = false;
6699 int band, i;
6700
6701 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6702 struct ieee80211_supported_band *sband;
6703
6704 sband = wiphy->bands[band];
6705 if (!sband)
6706 continue;
6707
6708 for (i = 0; i < sband->n_bitrates; i++) {
6709 if (sband->bitrates[i].bitrate == rateval) {
6710 mcast_rate[band] = i + 1;
6711 found = true;
6712 break;
6713 }
6714 }
6715 }
6716
6717 return found;
6718}
6719
04a773ad
JB		 6720static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6721{
4c476991
JB		 6722 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6723 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6724 struct cfg80211_ibss_params ibss;
6725 struct wiphy *wiphy;
fffd0934 6726 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6727 int err;
6728
8e30bc55
JB		 6729 memset(&ibss, 0, sizeof(ibss));
6730
04a773ad
JB		 6731 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6732 return -EINVAL;
6733
683b6d3b 6734 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6735 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6736 return -EINVAL;
6737
8e30bc55
JB		 6738 ibss.beacon_interval = 100;
6739
6740 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6741 ibss.beacon_interval =
6742 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6743 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6744 return -EINVAL;
6745 }
6746
4c476991
JB		 6747 if (!rdev->ops->join_ibss)
6748 return -EOPNOTSUPP;
04a773ad 6749
4c476991
JB		 6750 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6751 return -EOPNOTSUPP;
04a773ad 6752
79c97e97 6753 wiphy = &rdev->wiphy;
04a773ad 6754
39193498 6755 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6756 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6757
6758 if (!is_valid_ether_addr(ibss.bssid))
6759 return -EINVAL;
6760 }
04a773ad
JB		 6761 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6762 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6763
6764 if (info->attrs[NL80211_ATTR_IE]) {
6765 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6766 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6767 }
6768
683b6d3b
JB		 6769 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6770 if (err)
6771 return err;
04a773ad 6772
174e0cd2
IP		 6773 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6774 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6775 return -EINVAL;
6776
2f301ab2 6777 switch (ibss.chandef.width) {
bf372645
SW		 6778 case NL80211_CHAN_WIDTH_5:
6779 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6780 case NL80211_CHAN_WIDTH_20_NOHT:
6781 break;
6782 case NL80211_CHAN_WIDTH_20:
6783 case NL80211_CHAN_WIDTH_40:
6784 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6785 break;
6786 default:
c04d6150 6787 return -EINVAL;
2f301ab2 6788 }
db9c64cf 6789
04a773ad 6790 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6791 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6792
fbd2c8dc
TP		 6793 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6794 u8 *rates =
6795 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6796 int n_rates =
6797 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6798 struct ieee80211_supported_band *sband =
683b6d3b 6799 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6800
34850ab2
JB		 6801 err = ieee80211_get_ratemask(sband, rates, n_rates,
6802 &ibss.basic_rates);
6803 if (err)
6804 return err;
fbd2c8dc 6805 }
dd5b4cc7 6806
803768f5
SW		 6807 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6808 memcpy(&ibss.ht_capa_mask,
6809 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6810 sizeof(ibss.ht_capa_mask));
6811
6812 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6813 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6814 return -EINVAL;
6815 memcpy(&ibss.ht_capa,
6816 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6817 sizeof(ibss.ht_capa));
6818 }
6819
dd5b4cc7
FF		 6820 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6821 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6822 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6823 return -EINVAL;
fbd2c8dc 6824
4c476991 6825 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6826 bool no_ht = false;
6827
4c476991 6828 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6829 info->attrs[NL80211_ATTR_KEYS],
6830 &no_ht);
4c476991
JB		 6831 if (IS_ERR(connkeys))
6832 return PTR_ERR(connkeys);
de7044ee 6833
3d9d1d66
JB		 6834 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6835 no_ht) {
de7044ee
SM		 6836 kfree(connkeys);
6837 return -EINVAL;
6838 }
4c476991 6839 }
04a773ad 6840
267335d6
AQ		 6841 ibss.control_port =
6842 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6843
5336fa88
SW		 6844 ibss.userspace_handles_dfs =
6845 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6846
4c476991 6847 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6848 if (err)
6849 kfree(connkeys);
04a773ad
JB		 6850 return err;
6851}
6852
6853static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6854{
4c476991
JB		 6855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6856 struct net_device *dev = info->user_ptr[1];
04a773ad 6857
4c476991
JB		 6858 if (!rdev->ops->leave_ibss)
6859 return -EOPNOTSUPP;
04a773ad 6860
4c476991
JB		 6861 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6862 return -EOPNOTSUPP;
04a773ad 6863
4c476991 6864 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6865}
6866
f4e583c8
AQ		 6867static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6868{
6869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6870 struct net_device *dev = info->user_ptr[1];
6871 int mcast_rate[IEEE80211_NUM_BANDS];
6872 u32 nla_rate;
6873 int err;
6874
6875 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6876 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6877 return -EOPNOTSUPP;
6878
6879 if (!rdev->ops->set_mcast_rate)
6880 return -EOPNOTSUPP;
6881
6882 memset(mcast_rate, 0, sizeof(mcast_rate));
6883
6884 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6885 return -EINVAL;
6886
6887 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6888 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6889 return -EINVAL;
6890
6891 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6892
6893 return err;
6894}
6895
ad7e718c
JB		 6896static struct sk_buff *
6897__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6898 int approxlen, u32 portid, u32 seq,
6899 enum nl80211_commands cmd,
567ffc35
JB		 6900 enum nl80211_attrs attr,
6901 const struct nl80211_vendor_cmd_info *info,
6902 gfp_t gfp)
ad7e718c
JB		 6903{
6904 struct sk_buff *skb;
6905 void *hdr;
6906 struct nlattr *data;
6907
6908 skb = nlmsg_new(approxlen + 100, gfp);
6909 if (!skb)
6910 return NULL;
6911
6912 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6913 if (!hdr) {
6914 kfree_skb(skb);
6915 return NULL;
6916 }
6917
6918 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6919 goto nla_put_failure;
567ffc35
JB		 6920
6921 if (info) {
6922 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6923 info->vendor_id))
6924 goto nla_put_failure;
6925 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6926 info->subcmd))
6927 goto nla_put_failure;
6928 }
6929
ad7e718c
JB		 6930 data = nla_nest_start(skb, attr);
6931
6932 ((void **)skb->cb)[0] = rdev;
6933 ((void **)skb->cb)[1] = hdr;
6934 ((void **)skb->cb)[2] = data;
6935
6936 return skb;
6937
6938 nla_put_failure:
6939 kfree_skb(skb);
6940 return NULL;
6941}
f4e583c8 6942
e03ad6ea
JB		 6943struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6944 enum nl80211_commands cmd,
6945 enum nl80211_attrs attr,
6946 int vendor_event_idx,
6947 int approxlen, gfp_t gfp)
6948{
f26cbf40 6949 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6950 const struct nl80211_vendor_cmd_info *info;
6951
6952 switch (cmd) {
6953 case NL80211_CMD_TESTMODE:
6954 if (WARN_ON(vendor_event_idx != -1))
6955 return NULL;
6956 info = NULL;
6957 break;
6958 case NL80211_CMD_VENDOR:
6959 if (WARN_ON(vendor_event_idx < 0 ||
6960 vendor_event_idx >= wiphy->n_vendor_events))
6961 return NULL;
6962 info = &wiphy->vendor_events[vendor_event_idx];
6963 break;
6964 default:
6965 WARN_ON(1);
6966 return NULL;
6967 }
6968
6969 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6970 cmd, attr, info, gfp);
6971}
6972EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6973
6974void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6975{
6976 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6977 void *hdr = ((void **)skb->cb)[1];
6978 struct nlattr *data = ((void **)skb->cb)[2];
6979 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6980
6981 nla_nest_end(skb, data);
6982 genlmsg_end(skb, hdr);
6983
6984 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6985 mcgrp = NL80211_MCGRP_VENDOR;
6986
6987 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6988 mcgrp, gfp);
6989}
6990EXPORT_SYMBOL(__cfg80211_send_event_skb);
6991
aff89a9b 6992#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6993static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6994{
4c476991 6995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6996 struct wireless_dev *wdev =
6997 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6998 int err;
6999
fc73f11f
DS		 7000 if (!rdev->ops->testmode_cmd)
7001 return -EOPNOTSUPP;
7002
7003 if (IS_ERR(wdev)) {
7004 err = PTR_ERR(wdev);
7005 if (err != -EINVAL)
7006 return err;
7007 wdev = NULL;
7008 } else if (wdev->wiphy != &rdev->wiphy) {
7009 return -EINVAL;
7010 }
7011
aff89a9b
JB		 7012 if (!info->attrs[NL80211_ATTR_TESTDATA])
7013 return -EINVAL;
7014
ad7e718c 7015 rdev->cur_cmd_info = info;
fc73f11f 7016 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7017 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7018 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7019 rdev->cur_cmd_info = NULL;
aff89a9b 7020
aff89a9b
JB		 7021 return err;
7022}
7023
71063f0e
WYG		 7024static int nl80211_testmode_dump(struct sk_buff *skb,
7025 struct netlink_callback *cb)
7026{
00918d33 7027 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7028 int err;
7029 long phy_idx;
7030 void *data = NULL;
7031 int data_len = 0;
7032
5fe231e8
JB		 7033 rtnl_lock();
7034
71063f0e
WYG		 7035 if (cb->args[0]) {
7036 /*
7037 * 0 is a valid index, but not valid for args[0],
7038 * so we need to offset by 1.
7039 */
7040 phy_idx = cb->args[0] - 1;
7041 } else {
7042 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7043 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7044 nl80211_policy);
7045 if (err)
5fe231e8 7046 goto out_err;
00918d33 7047
2bd7e35d
JB		 7048 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7049 nl80211_fam.attrbuf);
7050 if (IS_ERR(rdev)) {
5fe231e8
JB		 7051 err = PTR_ERR(rdev);
7052 goto out_err;
00918d33 7053 }
2bd7e35d
JB		 7054 phy_idx = rdev->wiphy_idx;
7055 rdev = NULL;
2bd7e35d 7056
71063f0e
WYG		 7057 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7058 cb->args[1] =
7059 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7060 }
7061
7062 if (cb->args[1]) {
7063 data = nla_data((void *)cb->args[1]);
7064 data_len = nla_len((void *)cb->args[1]);
7065 }
7066
00918d33
JB		 7067 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7068 if (!rdev) {
5fe231e8
JB		 7069 err = -ENOENT;
7070 goto out_err;
71063f0e 7071 }
71063f0e 7072
00918d33 7073 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7074 err = -EOPNOTSUPP;
7075 goto out_err;
7076 }
7077
7078 while (1) {
15e47304 7079 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7080 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7081 NL80211_CMD_TESTMODE);
7082 struct nlattr *tmdata;
7083
cb35fba3
DC		 7084 if (!hdr)
7085 break;
7086
9360ffd1 7087 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7088 genlmsg_cancel(skb, hdr);
7089 break;
7090 }
7091
7092 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7093 if (!tmdata) {
7094 genlmsg_cancel(skb, hdr);
7095 break;
7096 }
e35e4d28 7097 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7098 nla_nest_end(skb, tmdata);
7099
7100 if (err == -ENOBUFS || err == -ENOENT) {
7101 genlmsg_cancel(skb, hdr);
7102 break;
7103 } else if (err) {
7104 genlmsg_cancel(skb, hdr);
7105 goto out_err;
7106 }
7107
7108 genlmsg_end(skb, hdr);
7109 }
7110
7111 err = skb->len;
7112 /* see above */
7113 cb->args[0] = phy_idx + 1;
7114 out_err:
5fe231e8 7115 rtnl_unlock();
71063f0e
WYG		 7116 return err;
7117}
aff89a9b
JB		 7118#endif
7119
b23aa676
SO		 7120static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7121{
4c476991
JB		 7122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7123 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7124 struct cfg80211_connect_params connect;
7125 struct wiphy *wiphy;
fffd0934 7126 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7127 int err;
7128
7129 memset(&connect, 0, sizeof(connect));
7130
7131 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7132 return -EINVAL;
7133
7134 if (!info->attrs[NL80211_ATTR_SSID] ||
7135 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7136 return -EINVAL;
7137
7138 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7139 connect.auth_type =
7140 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7141 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7142 NL80211_CMD_CONNECT))
b23aa676
SO		 7143 return -EINVAL;
7144 } else
7145 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7146
7147 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7148
c0692b8f 7149 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7150 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7151 if (err)
7152 return err;
b23aa676 7153
074ac8df 7154 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7155 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7156 return -EOPNOTSUPP;
b23aa676 7157
79c97e97 7158 wiphy = &rdev->wiphy;
b23aa676 7159
4486ea98
BS		 7160 connect.bg_scan_period = -1;
7161 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7162 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7163 connect.bg_scan_period =
7164 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7165 }
7166
b23aa676
SO		 7167 if (info->attrs[NL80211_ATTR_MAC])
7168 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7169 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7170 connect.bssid_hint =
7171 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7172 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7173 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7174
7175 if (info->attrs[NL80211_ATTR_IE]) {
7176 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7177 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7178 }
7179
cee00a95
JM		 7180 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7181 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7182 if (connect.mfp != NL80211_MFP_REQUIRED &&
7183 connect.mfp != NL80211_MFP_NO)
7184 return -EINVAL;
7185 } else {
7186 connect.mfp = NL80211_MFP_NO;
7187 }
7188
b23aa676 7189 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7190 connect.channel = nl80211_get_valid_chan(
7191 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7192 if (!connect.channel)
1df4a510
JM		 7193 return -EINVAL;
7194 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7195 connect.channel_hint = nl80211_get_valid_chan(
7196 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7197 if (!connect.channel_hint)
4c476991 7198 return -EINVAL;
b23aa676
SO		 7199 }
7200
fffd0934
JB		 7201 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7202 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7203 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7204 if (IS_ERR(connkeys))
7205 return PTR_ERR(connkeys);
fffd0934
JB		 7206 }
7207
7e7c8926
BG		 7208 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7209 connect.flags |= ASSOC_REQ_DISABLE_HT;
7210
7211 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7212 memcpy(&connect.ht_capa_mask,
7213 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7214 sizeof(connect.ht_capa_mask));
7215
7216 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7217 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7218 kfree(connkeys);
7e7c8926 7219 return -EINVAL;
b4e4f47e 7220 }
7e7c8926
BG		 7221 memcpy(&connect.ht_capa,
7222 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7223 sizeof(connect.ht_capa));
7224 }
7225
ee2aca34
JB		 7226 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7227 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7228
7229 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7230 memcpy(&connect.vht_capa_mask,
7231 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7232 sizeof(connect.vht_capa_mask));
7233
7234 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7235 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7236 kfree(connkeys);
7237 return -EINVAL;
7238 }
7239 memcpy(&connect.vht_capa,
7240 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7241 sizeof(connect.vht_capa));
7242 }
7243
83739b03
JB		 7244 wdev_lock(dev->ieee80211_ptr);
7245 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7246 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7247 if (err)
7248 kfree(connkeys);
b23aa676
SO		 7249 return err;
7250}
7251
7252static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7253{
4c476991
JB		 7254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7255 struct net_device *dev = info->user_ptr[1];
b23aa676 7256 u16 reason;
83739b03 7257 int ret;
b23aa676
SO		 7258
7259 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7260 reason = WLAN_REASON_DEAUTH_LEAVING;
7261 else
7262 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7263
7264 if (reason == 0)
7265 return -EINVAL;
7266
074ac8df 7267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7269 return -EOPNOTSUPP;
b23aa676 7270
83739b03
JB		 7271 wdev_lock(dev->ieee80211_ptr);
7272 ret = cfg80211_disconnect(rdev, dev, reason, true);
7273 wdev_unlock(dev->ieee80211_ptr);
7274 return ret;
b23aa676
SO		 7275}
7276
463d0183
JB		 7277static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7278{
4c476991 7279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7280 struct net *net;
7281 int err;
7282 u32 pid;
7283
7284 if (!info->attrs[NL80211_ATTR_PID])
7285 return -EINVAL;
7286
7287 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7288
463d0183 7289 net = get_net_ns_by_pid(pid);
4c476991
JB		 7290 if (IS_ERR(net))
7291 return PTR_ERR(net);
463d0183
JB		 7292
7293 err = 0;
7294
7295 /* check if anything to do */
4c476991
JB		 7296 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7297 err = cfg80211_switch_netns(rdev, net);
463d0183 7298
463d0183 7299 put_net(net);
463d0183
JB		 7300 return err;
7301}
7302
67fbb16b
SO		 7303static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7304{
4c476991 7305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7306 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7307 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7308 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7309 struct cfg80211_pmksa pmksa;
7310
7311 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7312
7313 if (!info->attrs[NL80211_ATTR_MAC])
7314 return -EINVAL;
7315
7316 if (!info->attrs[NL80211_ATTR_PMKID])
7317 return -EINVAL;
7318
67fbb16b
SO		 7319 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7320 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7321
074ac8df 7322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7323 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7324 return -EOPNOTSUPP;
67fbb16b
SO		 7325
7326 switch (info->genlhdr->cmd) {
7327 case NL80211_CMD_SET_PMKSA:
7328 rdev_ops = rdev->ops->set_pmksa;
7329 break;
7330 case NL80211_CMD_DEL_PMKSA:
7331 rdev_ops = rdev->ops->del_pmksa;
7332 break;
7333 default:
7334 WARN_ON(1);
7335 break;
7336 }
7337
4c476991
JB		 7338 if (!rdev_ops)
7339 return -EOPNOTSUPP;
67fbb16b 7340
4c476991 7341 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7342}
7343
7344static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7345{
4c476991
JB		 7346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7347 struct net_device *dev = info->user_ptr[1];
67fbb16b 7348
074ac8df 7349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7351 return -EOPNOTSUPP;
67fbb16b 7352
4c476991
JB		 7353 if (!rdev->ops->flush_pmksa)
7354 return -EOPNOTSUPP;
67fbb16b 7355
e35e4d28 7356 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7357}
7358
109086ce
AN		 7359static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7360{
7361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7362 struct net_device *dev = info->user_ptr[1];
7363 u8 action_code, dialog_token;
df942e7b 7364 u32 peer_capability = 0;
109086ce
AN		 7365 u16 status_code;
7366 u8 *peer;
31fa97c5 7367 bool initiator;
109086ce
AN		 7368
7369 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7370 !rdev->ops->tdls_mgmt)
7371 return -EOPNOTSUPP;
7372
7373 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7374 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7375 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7376 !info->attrs[NL80211_ATTR_IE] ||
7377 !info->attrs[NL80211_ATTR_MAC])
7378 return -EINVAL;
7379
7380 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7381 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7382 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7383 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7384 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7385 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7386 peer_capability =
7387 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7388
e35e4d28 7389 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7390 dialog_token, status_code, peer_capability,
31fa97c5 7391 initiator,
e35e4d28
HG		 7392 nla_data(info->attrs[NL80211_ATTR_IE]),
7393 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7394}
7395
7396static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7397{
7398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7399 struct net_device *dev = info->user_ptr[1];
7400 enum nl80211_tdls_operation operation;
7401 u8 *peer;
7402
7403 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7404 !rdev->ops->tdls_oper)
7405 return -EOPNOTSUPP;
7406
7407 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7408 !info->attrs[NL80211_ATTR_MAC])
7409 return -EINVAL;
7410
7411 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7412 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7413
e35e4d28 7414 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7415}
7416
9588bbd5
JM		 7417static int nl80211_remain_on_channel(struct sk_buff *skb,
7418 struct genl_info *info)
7419{
4c476991 7420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7421 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7422 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7423 struct sk_buff *msg;
7424 void *hdr;
7425 u64 cookie;
683b6d3b 7426 u32 duration;
9588bbd5
JM		 7427 int err;
7428
7429 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7430 !info->attrs[NL80211_ATTR_DURATION])
7431 return -EINVAL;
7432
7433 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7434
ebf348fc
JB		 7435 if (!rdev->ops->remain_on_channel ||
7436 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7437 return -EOPNOTSUPP;
7438
9588bbd5 7439 /*
ebf348fc
JB		 7440 * We should be on that channel for at least a minimum amount of
7441 * time (10ms) but no longer than the driver supports.
9588bbd5 7442 */
ebf348fc 7443 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7444 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7445 return -EINVAL;
7446
683b6d3b
JB		 7447 err = nl80211_parse_chandef(rdev, info, &chandef);
7448 if (err)
7449 return err;
9588bbd5
JM		 7450
7451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7452 if (!msg)
7453 return -ENOMEM;
9588bbd5 7454
15e47304 7455 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7456 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7457 if (!hdr) {
7458 err = -ENOBUFS;
9588bbd5
JM		 7459 goto free_msg;
7460 }
7461
683b6d3b
JB		 7462 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7463 duration, &cookie);
9588bbd5
JM		 7464
7465 if (err)
7466 goto free_msg;
7467
9360ffd1
DM		 7468 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7469 goto nla_put_failure;
9588bbd5
JM		 7470
7471 genlmsg_end(msg, hdr);
4c476991
JB		 7472
7473 return genlmsg_reply(msg, info);
9588bbd5
JM		 7474
7475 nla_put_failure:
7476 err = -ENOBUFS;
7477 free_msg:
7478 nlmsg_free(msg);
9588bbd5
JM		 7479 return err;
7480}
7481
7482static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7483 struct genl_info *info)
7484{
4c476991 7485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7486 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7487 u64 cookie;
9588bbd5
JM		 7488
7489 if (!info->attrs[NL80211_ATTR_COOKIE])
7490 return -EINVAL;
7491
4c476991
JB		 7492 if (!rdev->ops->cancel_remain_on_channel)
7493 return -EOPNOTSUPP;
9588bbd5 7494
9588bbd5
JM		 7495 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7496
e35e4d28 7497 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7498}
7499
13ae75b1
JM		 7500static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7501 u8 *rates, u8 rates_len)
7502{
7503 u8 i;
7504 u32 mask = 0;
7505
7506 for (i = 0; i < rates_len; i++) {
7507 int rate = (rates[i] & 0x7f) * 5;
7508 int ridx;
7509 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7510 struct ieee80211_rate *srate =
7511 &sband->bitrates[ridx];
7512 if (rate == srate->bitrate) {
7513 mask |= 1 << ridx;
7514 break;
7515 }
7516 }
7517 if (ridx == sband->n_bitrates)
7518 return 0; /* rate not found */
7519 }
7520
7521 return mask;
7522}
7523
24db78c0
SW		 7524static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7525 u8 *rates, u8 rates_len,
7526 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7527{
7528 u8 i;
7529
7530 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7531
7532 for (i = 0; i < rates_len; i++) {
7533 int ridx, rbit;
7534
7535 ridx = rates[i] / 8;
7536 rbit = BIT(rates[i] % 8);
7537
7538 /* check validity */
910570b5 7539 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7540 return false;
7541
7542 /* check availability */
7543 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7544 mcs[ridx] |= rbit;
7545 else
7546 return false;
7547 }
7548
7549 return true;
7550}
7551
204e35a9
JD		 7552static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7553{
7554 u16 mcs_mask = 0;
7555
7556 switch (vht_mcs_map) {
7557 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7558 break;
7559 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7560 mcs_mask = 0x00FF;
7561 break;
7562 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7563 mcs_mask = 0x01FF;
7564 break;
7565 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7566 mcs_mask = 0x03FF;
7567 break;
7568 default:
7569 break;
7570 }
7571
7572 return mcs_mask;
7573}
7574
7575static void vht_build_mcs_mask(u16 vht_mcs_map,
7576 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7577{
7578 u8 nss;
7579
7580 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7581 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7582 vht_mcs_map >>= 2;
7583 }
7584}
7585
7586static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7587 struct nl80211_txrate_vht *txrate,
7588 u16 mcs[NL80211_VHT_NSS_MAX])
7589{
7590 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7591 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7592 u8 i;
7593
7594 if (!sband->vht_cap.vht_supported)
7595 return false;
7596
7597 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7598
7599 /* Build vht_mcs_mask from VHT capabilities */
7600 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7601
7602 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7603 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7604 mcs[i] = txrate->mcs[i];
7605 else
7606 return false;
7607 }
7608
7609 return true;
7610}
7611
b54452b0 7612static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7613 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7614 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7615 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7616 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7617 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7618 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7619};
7620
7621static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7622 struct genl_info *info)
7623{
7624 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7626 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7627 int rem, i;
7628 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7629 struct nlattr *tx_rates;
7630 struct ieee80211_supported_band *sband;
204e35a9 7631 u16 vht_tx_mcs_map;
13ae75b1 7632
4c476991
JB		 7633 if (!rdev->ops->set_bitrate_mask)
7634 return -EOPNOTSUPP;
13ae75b1
JM		 7635
7636 memset(&mask, 0, sizeof(mask));
7637 /* Default to all rates enabled */
7638 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7639 sband = rdev->wiphy.bands[i];
7869303b
JD		 7640
7641 if (!sband)
7642 continue;
7643
7644 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7645 memcpy(mask.control[i].ht_mcs,
7869303b 7646 sband->ht_cap.mcs.rx_mask,
d1e33e65 7647 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7648
7649 if (!sband->vht_cap.vht_supported)
7650 continue;
7651
7652 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7653 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7654 }
7655
b9243ab0
JD		 7656 /* if no rates are given set it back to the defaults */
7657 if (!info->attrs[NL80211_ATTR_TX_RATES])
7658 goto out;
7659
13ae75b1
JM		 7660 /*
7661 * The nested attribute uses enum nl80211_band as the index. This maps
7662 * directly to the enum ieee80211_band values used in cfg80211.
7663 */
24db78c0 7664 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7665 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7666 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7667 int err;
7668
4c476991
JB		 7669 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7670 return -EINVAL;
13ae75b1 7671 sband = rdev->wiphy.bands[band];
4c476991
JB		 7672 if (sband == NULL)
7673 return -EINVAL;
ae811e21
JB		 7674 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7675 nla_len(tx_rates), nl80211_txattr_policy);
7676 if (err)
7677 return err;
13ae75b1
JM		 7678 if (tb[NL80211_TXRATE_LEGACY]) {
7679 mask.control[band].legacy = rateset_to_mask(
7680 sband,
7681 nla_data(tb[NL80211_TXRATE_LEGACY]),
7682 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7683 if ((mask.control[band].legacy == 0) &&
7684 nla_len(tb[NL80211_TXRATE_LEGACY]))
7685 return -EINVAL;
24db78c0 7686 }
d1e33e65 7687 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7688 if (!ht_rateset_to_mask(
7689 sband,
d1e33e65
JD		 7690 nla_data(tb[NL80211_TXRATE_HT]),
7691 nla_len(tb[NL80211_TXRATE_HT]),
7692 mask.control[band].ht_mcs))
24db78c0
SW		 7693 return -EINVAL;
7694 }
204e35a9
JD		 7695 if (tb[NL80211_TXRATE_VHT]) {
7696 if (!vht_set_mcs_mask(
7697 sband,
7698 nla_data(tb[NL80211_TXRATE_VHT]),
7699 mask.control[band].vht_mcs))
7700 return -EINVAL;
7701 }
0b9323f6
JD		 7702 if (tb[NL80211_TXRATE_GI]) {
7703 mask.control[band].gi =
7704 nla_get_u8(tb[NL80211_TXRATE_GI]);
7705 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7706 return -EINVAL;
7707 }
24db78c0
SW		 7708
7709 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7710 /* don't allow empty legacy rates if HT or VHT
7711 * are not even supported.
7712 */
7713 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7714 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7715 return -EINVAL;
7716
7717 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7718 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7719 goto out;
7720
7721 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7722 if (mask.control[band].vht_mcs[i])
7723 goto out;
24db78c0
SW		 7724
7725 /* legacy and mcs rates may not be both empty */
204e35a9 7726 return -EINVAL;
13ae75b1
JM		 7727 }
7728 }
7729
b9243ab0 7730out:
e35e4d28 7731 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7732}
7733
2e161f78 7734static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7735{
4c476991 7736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7737 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7738 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7739
7740 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7741 return -EINVAL;
7742
2e161f78
JB		 7743 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7744 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7745
71bbc994
JB		 7746 switch (wdev->iftype) {
7747 case NL80211_IFTYPE_STATION:
7748 case NL80211_IFTYPE_ADHOC:
7749 case NL80211_IFTYPE_P2P_CLIENT:
7750 case NL80211_IFTYPE_AP:
7751 case NL80211_IFTYPE_AP_VLAN:
7752 case NL80211_IFTYPE_MESH_POINT:
7753 case NL80211_IFTYPE_P2P_GO:
98104fde 7754 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7755 break;
7756 default:
4c476991 7757 return -EOPNOTSUPP;
71bbc994 7758 }
026331c4
JM		 7759
7760 /* not much point in registering if we can't reply */
4c476991
JB		 7761 if (!rdev->ops->mgmt_tx)
7762 return -EOPNOTSUPP;
026331c4 7763
15e47304 7764 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7765 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7766 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7767}
7768
2e161f78 7769static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7770{
4c476991 7771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7772 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7773 struct cfg80211_chan_def chandef;
026331c4 7774 int err;
d64d373f 7775 void *hdr = NULL;
026331c4 7776 u64 cookie;
e247bd90 7777 struct sk_buff *msg = NULL;
b176e629
AO		 7778 struct cfg80211_mgmt_tx_params params = {
7779 .dont_wait_for_ack =
7780 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7781 };
026331c4 7782
683b6d3b 7783 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7784 return -EINVAL;
7785
4c476991
JB		 7786 if (!rdev->ops->mgmt_tx)
7787 return -EOPNOTSUPP;
026331c4 7788
71bbc994 7789 switch (wdev->iftype) {
ea141b75
AQ		 7790 case NL80211_IFTYPE_P2P_DEVICE:
7791 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7792 return -EINVAL;
71bbc994
JB		 7793 case NL80211_IFTYPE_STATION:
7794 case NL80211_IFTYPE_ADHOC:
7795 case NL80211_IFTYPE_P2P_CLIENT:
7796 case NL80211_IFTYPE_AP:
7797 case NL80211_IFTYPE_AP_VLAN:
7798 case NL80211_IFTYPE_MESH_POINT:
7799 case NL80211_IFTYPE_P2P_GO:
7800 break;
7801 default:
4c476991 7802 return -EOPNOTSUPP;
71bbc994 7803 }
026331c4 7804
f7ca38df 7805 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7806 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7807 return -EINVAL;
b176e629 7808 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7809
7810 /*
7811 * We should wait on the channel for at least a minimum amount
7812 * of time (10ms) but no longer than the driver supports.
7813 */
b176e629
AO		 7814 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7815 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7816 return -EINVAL;
7817
f7ca38df
JB		 7818 }
7819
b176e629 7820 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7821
b176e629 7822 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7823 return -EINVAL;
7824
b176e629 7825 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7826
ea141b75
AQ		 7827 /* get the channel if any has been specified, otherwise pass NULL to
7828 * the driver. The latter will use the current one
7829 */
7830 chandef.chan = NULL;
7831 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7832 err = nl80211_parse_chandef(rdev, info, &chandef);
7833 if (err)
7834 return err;
7835 }
7836
b176e629 7837 if (!chandef.chan && params.offchan)
ea141b75 7838 return -EINVAL;
026331c4 7839
34d22ce2
AO		 7840 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7841 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7842
7843 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7844 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7845 int i;
7846
7847 if (len % sizeof(u16))
7848 return -EINVAL;
7849
7850 params.n_csa_offsets = len / sizeof(u16);
7851 params.csa_offsets =
7852 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7853
7854 /* check that all the offsets fit the frame */
7855 for (i = 0; i < params.n_csa_offsets; i++) {
7856 if (params.csa_offsets[i] >= params.len)
7857 return -EINVAL;
7858 }
7859 }
7860
b176e629 7861 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7863 if (!msg)
7864 return -ENOMEM;
026331c4 7865
15e47304 7866 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7867 NL80211_CMD_FRAME);
cb35fba3
DC		 7868 if (!hdr) {
7869 err = -ENOBUFS;
e247bd90
JB		 7870 goto free_msg;
7871 }
026331c4 7872 }
e247bd90 7873
b176e629
AO		 7874 params.chan = chandef.chan;
7875 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7876 if (err)
7877 goto free_msg;
7878
e247bd90 7879 if (msg) {
9360ffd1
DM		 7880 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7881 goto nla_put_failure;
026331c4 7882
e247bd90
JB		 7883 genlmsg_end(msg, hdr);
7884 return genlmsg_reply(msg, info);
7885 }
7886
7887 return 0;
026331c4
JM		 7888
7889 nla_put_failure:
7890 err = -ENOBUFS;
7891 free_msg:
7892 nlmsg_free(msg);
026331c4
JM		 7893 return err;
7894}
7895
f7ca38df
JB		 7896static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7897{
7898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7899 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7900 u64 cookie;
7901
7902 if (!info->attrs[NL80211_ATTR_COOKIE])
7903 return -EINVAL;
7904
7905 if (!rdev->ops->mgmt_tx_cancel_wait)
7906 return -EOPNOTSUPP;
7907
71bbc994
JB		 7908 switch (wdev->iftype) {
7909 case NL80211_IFTYPE_STATION:
7910 case NL80211_IFTYPE_ADHOC:
7911 case NL80211_IFTYPE_P2P_CLIENT:
7912 case NL80211_IFTYPE_AP:
7913 case NL80211_IFTYPE_AP_VLAN:
7914 case NL80211_IFTYPE_P2P_GO:
98104fde 7915 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7916 break;
7917 default:
f7ca38df 7918 return -EOPNOTSUPP;
71bbc994 7919 }
f7ca38df
JB		 7920
7921 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7922
e35e4d28 7923 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7924}
7925
ffb9eb3d
KV		 7926static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7927{
4c476991 7928 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7929 struct wireless_dev *wdev;
4c476991 7930 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7931 u8 ps_state;
7932 bool state;
7933 int err;
7934
4c476991
JB		 7935 if (!info->attrs[NL80211_ATTR_PS_STATE])
7936 return -EINVAL;
ffb9eb3d
KV		 7937
7938 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7939
4c476991
JB		 7940 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7941 return -EINVAL;
ffb9eb3d
KV		 7942
7943 wdev = dev->ieee80211_ptr;
7944
4c476991
JB		 7945 if (!rdev->ops->set_power_mgmt)
7946 return -EOPNOTSUPP;
ffb9eb3d
KV		 7947
7948 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7949
7950 if (state == wdev->ps)
4c476991 7951 return 0;
ffb9eb3d 7952
e35e4d28 7953 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7954 if (!err)
7955 wdev->ps = state;
ffb9eb3d
KV		 7956 return err;
7957}
7958
7959static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7960{
4c476991 7961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7962 enum nl80211_ps_state ps_state;
7963 struct wireless_dev *wdev;
4c476991 7964 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7965 struct sk_buff *msg;
7966 void *hdr;
7967 int err;
7968
ffb9eb3d
KV		 7969 wdev = dev->ieee80211_ptr;
7970
4c476991
JB		 7971 if (!rdev->ops->set_power_mgmt)
7972 return -EOPNOTSUPP;
ffb9eb3d
KV		 7973
7974 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7975 if (!msg)
7976 return -ENOMEM;
ffb9eb3d 7977
15e47304 7978 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7979 NL80211_CMD_GET_POWER_SAVE);
7980 if (!hdr) {
4c476991 7981 err = -ENOBUFS;
ffb9eb3d
KV		 7982 goto free_msg;
7983 }
7984
7985 if (wdev->ps)
7986 ps_state = NL80211_PS_ENABLED;
7987 else
7988 ps_state = NL80211_PS_DISABLED;
7989
9360ffd1
DM		 7990 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7991 goto nla_put_failure;
ffb9eb3d
KV		 7992
7993 genlmsg_end(msg, hdr);
4c476991 7994 return genlmsg_reply(msg, info);
ffb9eb3d 7995
4c476991 7996 nla_put_failure:
ffb9eb3d 7997 err = -ENOBUFS;
4c476991 7998 free_msg:
ffb9eb3d 7999 nlmsg_free(msg);
ffb9eb3d
KV		 8000 return err;
8001}
8002
94e860f1
JB		 8003static const struct nla_policy
8004nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8005 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8006 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8007 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8008 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8009 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8010 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8011};
8012
84f10708 8013static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8014 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8015{
8016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8017 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8018 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8019
d9d8b019 8020 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8021 return -EINVAL;
8022
84f10708
TP		 8023 if (!rdev->ops->set_cqm_txe_config)
8024 return -EOPNOTSUPP;
8025
8026 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8027 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8028 return -EOPNOTSUPP;
8029
e35e4d28 8030 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8031}
8032
d6dc1a38
JO		 8033static int nl80211_set_cqm_rssi(struct genl_info *info,
8034 s32 threshold, u32 hysteresis)
8035{
4c476991 8036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8037 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8038 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8039
8040 if (threshold > 0)
8041 return -EINVAL;
8042
1da5fcc8
JB		 8043 /* disabling - hysteresis should also be zero then */
8044 if (threshold == 0)
8045 hysteresis = 0;
d6dc1a38 8046
4c476991
JB		 8047 if (!rdev->ops->set_cqm_rssi_config)
8048 return -EOPNOTSUPP;
d6dc1a38 8049
074ac8df 8050 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8051 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8052 return -EOPNOTSUPP;
d6dc1a38 8053
e35e4d28 8054 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8055}
8056
8057static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8058{
8059 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8060 struct nlattr *cqm;
8061 int err;
8062
8063 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8064 if (!cqm)
8065 return -EINVAL;
d6dc1a38
JO		 8066
8067 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8068 nl80211_attr_cqm_policy);
8069 if (err)
1da5fcc8 8070 return err;
d6dc1a38
JO		 8071
8072 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8073 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8074 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8075 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8076
1da5fcc8
JB		 8077 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8078 }
8079
8080 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8081 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8082 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8083 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8084 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8085 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8086
8087 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8088 }
8089
8090 return -EINVAL;
d6dc1a38
JO		 8091}
8092
29cbe68c
JB		 8093static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8094{
8095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8096 struct net_device *dev = info->user_ptr[1];
8097 struct mesh_config cfg;
c80d545d 8098 struct mesh_setup setup;
29cbe68c
JB		 8099 int err;
8100
8101 /* start with default */
8102 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8103 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8104
24bdd9f4 8105 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8106 /* and parse parameters if given */
24bdd9f4 8107 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8108 if (err)
8109 return err;
8110 }
8111
8112 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8113 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8114 return -EINVAL;
8115
c80d545d
JC		 8116 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8117 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8118
4bb62344
CYY		 8119 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8120 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8121 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8122 return -EINVAL;
8123
9bdbf04d
MP		 8124 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8125 setup.beacon_interval =
8126 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8127 if (setup.beacon_interval < 10 ||
8128 setup.beacon_interval > 10000)
8129 return -EINVAL;
8130 }
8131
8132 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8133 setup.dtim_period =
8134 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8135 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8136 return -EINVAL;
8137 }
8138
c80d545d
JC		 8139 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8140 /* parse additional setup parameters if given */
8141 err = nl80211_parse_mesh_setup(info, &setup);
8142 if (err)
8143 return err;
8144 }
8145
d37bb18a
TP		 8146 if (setup.user_mpm)
8147 cfg.auto_open_plinks = false;
8148
cc1d2806 8149 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8150 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8151 if (err)
8152 return err;
cc1d2806
JB		 8153 } else {
8154 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8155 setup.chandef.chan = NULL;
cc1d2806
JB		 8156 }
8157
ffb3cf30
AN		 8158 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8159 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8160 int n_rates =
8161 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8162 struct ieee80211_supported_band *sband;
8163
8164 if (!setup.chandef.chan)
8165 return -EINVAL;
8166
8167 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8168
8169 err = ieee80211_get_ratemask(sband, rates, n_rates,
8170 &setup.basic_rates);
8171 if (err)
8172 return err;
8173 }
8174
c80d545d 8175 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8176}
8177
8178static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8179{
8180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8181 struct net_device *dev = info->user_ptr[1];
8182
8183 return cfg80211_leave_mesh(rdev, dev);
8184}
8185
dfb89c56 8186#ifdef CONFIG_PM
bb92d199
AK		 8187static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8188 struct cfg80211_registered_device *rdev)
8189{
6abb9cb9 8190 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8191 struct nlattr *nl_pats, *nl_pat;
8192 int i, pat_len;
8193
6abb9cb9 8194 if (!wowlan->n_patterns)
bb92d199
AK		 8195 return 0;
8196
8197 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8198 if (!nl_pats)
8199 return -ENOBUFS;
8200
6abb9cb9 8201 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8202 nl_pat = nla_nest_start(msg, i + 1);
8203 if (!nl_pat)
8204 return -ENOBUFS;
6abb9cb9 8205 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8206 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8207 wowlan->patterns[i].mask) ||
50ac6607
AK		 8208 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8209 wowlan->patterns[i].pattern) ||
8210 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8211 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8212 return -ENOBUFS;
8213 nla_nest_end(msg, nl_pat);
8214 }
8215 nla_nest_end(msg, nl_pats);
8216
8217 return 0;
8218}
8219
2a0e047e
JB		 8220static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8221 struct cfg80211_wowlan_tcp *tcp)
8222{
8223 struct nlattr *nl_tcp;
8224
8225 if (!tcp)
8226 return 0;
8227
8228 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8229 if (!nl_tcp)
8230 return -ENOBUFS;
8231
8232 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8233 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8234 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8235 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8236 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8237 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8238 tcp->payload_len, tcp->payload) ||
8239 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8240 tcp->data_interval) ||
8241 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8242 tcp->wake_len, tcp->wake_data) ||
8243 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8244 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8245 return -ENOBUFS;
8246
8247 if (tcp->payload_seq.len &&
8248 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8249 sizeof(tcp->payload_seq), &tcp->payload_seq))
8250 return -ENOBUFS;
8251
8252 if (tcp->payload_tok.len &&
8253 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8254 sizeof(tcp->payload_tok) + tcp->tokens_size,
8255 &tcp->payload_tok))
8256 return -ENOBUFS;
8257
e248ad30
JB		 8258 nla_nest_end(msg, nl_tcp);
8259
2a0e047e
JB		 8260 return 0;
8261}
8262
ff1b6e69
JB		 8263static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8264{
8265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8266 struct sk_buff *msg;
8267 void *hdr;
2a0e047e 8268 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8269
964dc9e2 8270 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8271 return -EOPNOTSUPP;
8272
6abb9cb9 8273 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8274 /* adjust size to have room for all the data */
6abb9cb9
JB		 8275 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8276 rdev->wiphy.wowlan_config->tcp->payload_len +
8277 rdev->wiphy.wowlan_config->tcp->wake_len +
8278 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8279 }
8280
8281 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8282 if (!msg)
8283 return -ENOMEM;
8284
15e47304 8285 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8286 NL80211_CMD_GET_WOWLAN);
8287 if (!hdr)
8288 goto nla_put_failure;
8289
6abb9cb9 8290 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8291 struct nlattr *nl_wowlan;
8292
8293 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8294 if (!nl_wowlan)
8295 goto nla_put_failure;
8296
6abb9cb9 8297 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8299 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8301 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8303 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8305 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8307 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8309 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8310 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8311 goto nla_put_failure;
2a0e047e 8312
bb92d199
AK		 8313 if (nl80211_send_wowlan_patterns(msg, rdev))
8314 goto nla_put_failure;
2a0e047e 8315
6abb9cb9
JB		 8316 if (nl80211_send_wowlan_tcp(msg,
8317 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8318 goto nla_put_failure;
8319
ff1b6e69
JB		 8320 nla_nest_end(msg, nl_wowlan);
8321 }
8322
8323 genlmsg_end(msg, hdr);
8324 return genlmsg_reply(msg, info);
8325
8326nla_put_failure:
8327 nlmsg_free(msg);
8328 return -ENOBUFS;
8329}
8330
2a0e047e
JB		 8331static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8332 struct nlattr *attr,
8333 struct cfg80211_wowlan *trig)
8334{
8335 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8336 struct cfg80211_wowlan_tcp *cfg;
8337 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8338 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8339 u32 size;
8340 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8341 int err, port;
8342
964dc9e2 8343 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8344 return -EINVAL;
8345
8346 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8347 nla_data(attr), nla_len(attr),
8348 nl80211_wowlan_tcp_policy);
8349 if (err)
8350 return err;
8351
8352 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8353 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8354 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8355 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8356 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8357 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8358 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8359 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8360 return -EINVAL;
8361
8362 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8363 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8364 return -EINVAL;
8365
8366 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8367 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8368 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8369 return -EINVAL;
8370
8371 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8372 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8373 return -EINVAL;
8374
8375 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8376 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8377 return -EINVAL;
8378
8379 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8380 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8381
8382 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8383 tokens_size = tokln - sizeof(*tok);
8384
8385 if (!tok->len || tokens_size % tok->len)
8386 return -EINVAL;
964dc9e2 8387 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8388 return -EINVAL;
964dc9e2 8389 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8390 return -EINVAL;
964dc9e2 8391 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8392 return -EINVAL;
964dc9e2 8393 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8394 return -EINVAL;
8395 if (tok->offset + tok->len > data_size)
8396 return -EINVAL;
8397 }
8398
8399 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8400 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8401 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8402 return -EINVAL;
8403 if (seq->len == 0 || seq->len > 4)
8404 return -EINVAL;
8405 if (seq->len + seq->offset > data_size)
8406 return -EINVAL;
8407 }
8408
8409 size = sizeof(*cfg);
8410 size += data_size;
8411 size += wake_size + wake_mask_size;
8412 size += tokens_size;
8413
8414 cfg = kzalloc(size, GFP_KERNEL);
8415 if (!cfg)
8416 return -ENOMEM;
8417 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8418 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8419 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8420 ETH_ALEN);
8421 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8422 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8423 else
8424 port = 0;
8425#ifdef CONFIG_INET
8426 /* allocate a socket and port for it and use it */
8427 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8428 IPPROTO_TCP, &cfg->sock, 1);
8429 if (err) {
8430 kfree(cfg);
8431 return err;
8432 }
8433 if (inet_csk_get_port(cfg->sock->sk, port)) {
8434 sock_release(cfg->sock);
8435 kfree(cfg);
8436 return -EADDRINUSE;
8437 }
8438 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8439#else
8440 if (!port) {
8441 kfree(cfg);
8442 return -EINVAL;
8443 }
8444 cfg->src_port = port;
8445#endif
8446
8447 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8448 cfg->payload_len = data_size;
8449 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8450 memcpy((void *)cfg->payload,
8451 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8452 data_size);
8453 if (seq)
8454 cfg->payload_seq = *seq;
8455 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8456 cfg->wake_len = wake_size;
8457 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8458 memcpy((void *)cfg->wake_data,
8459 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8460 wake_size);
8461 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8462 data_size + wake_size;
8463 memcpy((void *)cfg->wake_mask,
8464 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8465 wake_mask_size);
8466 if (tok) {
8467 cfg->tokens_size = tokens_size;
8468 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8469 }
8470
8471 trig->tcp = cfg;
8472
8473 return 0;
8474}
8475
ff1b6e69
JB		 8476static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8477{
8478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8479 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8480 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8481 struct cfg80211_wowlan *ntrig;
964dc9e2 8482 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8483 int err, i;
6abb9cb9 8484 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8485
964dc9e2 8486 if (!wowlan)
ff1b6e69
JB		 8487 return -EOPNOTSUPP;
8488
ae33bd81
JB		 8489 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8490 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8491 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8492 goto set_wakeup;
8493 }
ff1b6e69
JB		 8494
8495 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8496 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8497 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8498 nl80211_wowlan_policy);
8499 if (err)
8500 return err;
8501
8502 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8503 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8504 return -EINVAL;
8505 new_triggers.any = true;
8506 }
8507
8508 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8509 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8510 return -EINVAL;
8511 new_triggers.disconnect = true;
8512 }
8513
8514 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8515 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8516 return -EINVAL;
8517 new_triggers.magic_pkt = true;
8518 }
8519
77dbbb13
JB		 8520 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8521 return -EINVAL;
8522
8523 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8524 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8525 return -EINVAL;
8526 new_triggers.gtk_rekey_failure = true;
8527 }
8528
8529 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8530 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8531 return -EINVAL;
8532 new_triggers.eap_identity_req = true;
8533 }
8534
8535 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8536 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8537 return -EINVAL;
8538 new_triggers.four_way_handshake = true;
8539 }
8540
8541 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8542 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8543 return -EINVAL;
8544 new_triggers.rfkill_release = true;
8545 }
8546
ff1b6e69
JB		 8547 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8548 struct nlattr *pat;
8549 int n_patterns = 0;
bb92d199 8550 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8551 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8552
8553 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8554 rem)
8555 n_patterns++;
8556 if (n_patterns > wowlan->n_patterns)
8557 return -EINVAL;
8558
8559 new_triggers.patterns = kcalloc(n_patterns,
8560 sizeof(new_triggers.patterns[0]),
8561 GFP_KERNEL);
8562 if (!new_triggers.patterns)
8563 return -ENOMEM;
8564
8565 new_triggers.n_patterns = n_patterns;
8566 i = 0;
8567
8568 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8569 rem) {
922bd80f
JB		 8570 u8 *mask_pat;
8571
50ac6607
AK		 8572 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8573 nla_len(pat), NULL);
ff1b6e69 8574 err = -EINVAL;
50ac6607
AK		 8575 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8576 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8577 goto error;
50ac6607 8578 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8579 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8580 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8581 goto error;
8582 if (pat_len > wowlan->pattern_max_len ||
8583 pat_len < wowlan->pattern_min_len)
8584 goto error;
8585
50ac6607 8586 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8587 pkt_offset = 0;
8588 else
8589 pkt_offset = nla_get_u32(
50ac6607 8590 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8591 if (pkt_offset > wowlan->max_pkt_offset)
8592 goto error;
8593 new_triggers.patterns[i].pkt_offset = pkt_offset;
8594
922bd80f
JB		 8595 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8596 if (!mask_pat) {
ff1b6e69
JB		 8597 err = -ENOMEM;
8598 goto error;
8599 }
922bd80f
JB		 8600 new_triggers.patterns[i].mask = mask_pat;
8601 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8602 mask_len);
922bd80f
JB		 8603 mask_pat += mask_len;
8604 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8605 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8606 memcpy(mask_pat,
50ac6607 8607 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8608 pat_len);
8609 i++;
8610 }
8611 }
8612
2a0e047e
JB		 8613 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8614 err = nl80211_parse_wowlan_tcp(
8615 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8616 &new_triggers);
8617 if (err)
8618 goto error;
8619 }
8620
ae33bd81
JB		 8621 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8622 if (!ntrig) {
8623 err = -ENOMEM;
8624 goto error;
ff1b6e69 8625 }
ae33bd81 8626 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8627 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8628
ae33bd81 8629 set_wakeup:
6abb9cb9
JB		 8630 if (rdev->ops->set_wakeup &&
8631 prev_enabled != !!rdev->wiphy.wowlan_config)
8632 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8633
ff1b6e69
JB		 8634 return 0;
8635 error:
8636 for (i = 0; i < new_triggers.n_patterns; i++)
8637 kfree(new_triggers.patterns[i].mask);
8638 kfree(new_triggers.patterns);
2a0e047e
JB		 8639 if (new_triggers.tcp && new_triggers.tcp->sock)
8640 sock_release(new_triggers.tcp->sock);
8641 kfree(new_triggers.tcp);
ff1b6e69
JB		 8642 return err;
8643}
dfb89c56 8644#endif
ff1b6e69 8645
be29b99a
AK		 8646static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8647 struct cfg80211_registered_device *rdev)
8648{
8649 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8650 int i, j, pat_len;
8651 struct cfg80211_coalesce_rules *rule;
8652
8653 if (!rdev->coalesce->n_rules)
8654 return 0;
8655
8656 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8657 if (!nl_rules)
8658 return -ENOBUFS;
8659
8660 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8661 nl_rule = nla_nest_start(msg, i + 1);
8662 if (!nl_rule)
8663 return -ENOBUFS;
8664
8665 rule = &rdev->coalesce->rules[i];
8666 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8667 rule->delay))
8668 return -ENOBUFS;
8669
8670 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8671 rule->condition))
8672 return -ENOBUFS;
8673
8674 nl_pats = nla_nest_start(msg,
8675 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8676 if (!nl_pats)
8677 return -ENOBUFS;
8678
8679 for (j = 0; j < rule->n_patterns; j++) {
8680 nl_pat = nla_nest_start(msg, j + 1);
8681 if (!nl_pat)
8682 return -ENOBUFS;
8683 pat_len = rule->patterns[j].pattern_len;
8684 if (nla_put(msg, NL80211_PKTPAT_MASK,
8685 DIV_ROUND_UP(pat_len, 8),
8686 rule->patterns[j].mask) ||
8687 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8688 rule->patterns[j].pattern) ||
8689 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8690 rule->patterns[j].pkt_offset))
8691 return -ENOBUFS;
8692 nla_nest_end(msg, nl_pat);
8693 }
8694 nla_nest_end(msg, nl_pats);
8695 nla_nest_end(msg, nl_rule);
8696 }
8697 nla_nest_end(msg, nl_rules);
8698
8699 return 0;
8700}
8701
8702static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8703{
8704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8705 struct sk_buff *msg;
8706 void *hdr;
8707
8708 if (!rdev->wiphy.coalesce)
8709 return -EOPNOTSUPP;
8710
8711 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8712 if (!msg)
8713 return -ENOMEM;
8714
8715 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8716 NL80211_CMD_GET_COALESCE);
8717 if (!hdr)
8718 goto nla_put_failure;
8719
8720 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8721 goto nla_put_failure;
8722
8723 genlmsg_end(msg, hdr);
8724 return genlmsg_reply(msg, info);
8725
8726nla_put_failure:
8727 nlmsg_free(msg);
8728 return -ENOBUFS;
8729}
8730
8731void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8732{
8733 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8734 int i, j;
8735 struct cfg80211_coalesce_rules *rule;
8736
8737 if (!coalesce)
8738 return;
8739
8740 for (i = 0; i < coalesce->n_rules; i++) {
8741 rule = &coalesce->rules[i];
8742 for (j = 0; j < rule->n_patterns; j++)
8743 kfree(rule->patterns[j].mask);
8744 kfree(rule->patterns);
8745 }
8746 kfree(coalesce->rules);
8747 kfree(coalesce);
8748 rdev->coalesce = NULL;
8749}
8750
8751static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8752 struct nlattr *rule,
8753 struct cfg80211_coalesce_rules *new_rule)
8754{
8755 int err, i;
8756 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8757 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8758 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8759 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8760
8761 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8762 nla_len(rule), nl80211_coalesce_policy);
8763 if (err)
8764 return err;
8765
8766 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8767 new_rule->delay =
8768 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8769 if (new_rule->delay > coalesce->max_delay)
8770 return -EINVAL;
8771
8772 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8773 new_rule->condition =
8774 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8775 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8776 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8777 return -EINVAL;
8778
8779 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8780 return -EINVAL;
8781
8782 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8783 rem)
8784 n_patterns++;
8785 if (n_patterns > coalesce->n_patterns)
8786 return -EINVAL;
8787
8788 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8789 GFP_KERNEL);
8790 if (!new_rule->patterns)
8791 return -ENOMEM;
8792
8793 new_rule->n_patterns = n_patterns;
8794 i = 0;
8795
8796 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8797 rem) {
922bd80f
JB		 8798 u8 *mask_pat;
8799
be29b99a
AK		 8800 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8801 nla_len(pat), NULL);
8802 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8803 !pat_tb[NL80211_PKTPAT_PATTERN])
8804 return -EINVAL;
8805 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8806 mask_len = DIV_ROUND_UP(pat_len, 8);
8807 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8808 return -EINVAL;
8809 if (pat_len > coalesce->pattern_max_len ||
8810 pat_len < coalesce->pattern_min_len)
8811 return -EINVAL;
8812
8813 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8814 pkt_offset = 0;
8815 else
8816 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8817 if (pkt_offset > coalesce->max_pkt_offset)
8818 return -EINVAL;
8819 new_rule->patterns[i].pkt_offset = pkt_offset;
8820
922bd80f
JB		 8821 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8822 if (!mask_pat)
be29b99a 8823 return -ENOMEM;
922bd80f
JB		 8824
8825 new_rule->patterns[i].mask = mask_pat;
8826 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8827 mask_len);
8828
8829 mask_pat += mask_len;
8830 new_rule->patterns[i].pattern = mask_pat;
be29b99a 8831 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 8832 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8833 pat_len);
be29b99a
AK		 8834 i++;
8835 }
8836
8837 return 0;
8838}
8839
8840static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8841{
8842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8843 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8844 struct cfg80211_coalesce new_coalesce = {};
8845 struct cfg80211_coalesce *n_coalesce;
8846 int err, rem_rule, n_rules = 0, i, j;
8847 struct nlattr *rule;
8848 struct cfg80211_coalesce_rules *tmp_rule;
8849
8850 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8851 return -EOPNOTSUPP;
8852
8853 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8854 cfg80211_rdev_free_coalesce(rdev);
8855 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8856 return 0;
8857 }
8858
8859 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8860 rem_rule)
8861 n_rules++;
8862 if (n_rules > coalesce->n_rules)
8863 return -EINVAL;
8864
8865 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8866 GFP_KERNEL);
8867 if (!new_coalesce.rules)
8868 return -ENOMEM;
8869
8870 new_coalesce.n_rules = n_rules;
8871 i = 0;
8872
8873 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8874 rem_rule) {
8875 err = nl80211_parse_coalesce_rule(rdev, rule,
8876 &new_coalesce.rules[i]);
8877 if (err)
8878 goto error;
8879
8880 i++;
8881 }
8882
8883 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8884 if (err)
8885 goto error;
8886
8887 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8888 if (!n_coalesce) {
8889 err = -ENOMEM;
8890 goto error;
8891 }
8892 cfg80211_rdev_free_coalesce(rdev);
8893 rdev->coalesce = n_coalesce;
8894
8895 return 0;
8896error:
8897 for (i = 0; i < new_coalesce.n_rules; i++) {
8898 tmp_rule = &new_coalesce.rules[i];
8899 for (j = 0; j < tmp_rule->n_patterns; j++)
8900 kfree(tmp_rule->patterns[j].mask);
8901 kfree(tmp_rule->patterns);
8902 }
8903 kfree(new_coalesce.rules);
8904
8905 return err;
8906}
8907
e5497d76
JB		 8908static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8909{
8910 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8911 struct net_device *dev = info->user_ptr[1];
8912 struct wireless_dev *wdev = dev->ieee80211_ptr;
8913 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8914 struct cfg80211_gtk_rekey_data rekey_data;
8915 int err;
8916
8917 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8918 return -EINVAL;
8919
8920 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8921 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8922 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8923 nl80211_rekey_policy);
8924 if (err)
8925 return err;
8926
8927 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8928 return -ERANGE;
8929 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8930 return -ERANGE;
8931 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8932 return -ERANGE;
8933
8934 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8935 NL80211_KEK_LEN);
8936 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8937 NL80211_KCK_LEN);
8938 memcpy(rekey_data.replay_ctr,
8939 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8940 NL80211_REPLAY_CTR_LEN);
8941
8942 wdev_lock(wdev);
8943 if (!wdev->current_bss) {
8944 err = -ENOTCONN;
8945 goto out;
8946 }
8947
8948 if (!rdev->ops->set_rekey_data) {
8949 err = -EOPNOTSUPP;
8950 goto out;
8951 }
8952
e35e4d28 8953 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8954 out:
8955 wdev_unlock(wdev);
8956 return err;
8957}
8958
28946da7
JB		 8959static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8960 struct genl_info *info)
8961{
8962 struct net_device *dev = info->user_ptr[1];
8963 struct wireless_dev *wdev = dev->ieee80211_ptr;
8964
8965 if (wdev->iftype != NL80211_IFTYPE_AP &&
8966 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8967 return -EINVAL;
8968
15e47304 8969 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8970 return -EBUSY;
8971
15e47304 8972 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8973 return 0;
8974}
8975
7f6cf311
JB		 8976static int nl80211_probe_client(struct sk_buff *skb,
8977 struct genl_info *info)
8978{
8979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8980 struct net_device *dev = info->user_ptr[1];
8981 struct wireless_dev *wdev = dev->ieee80211_ptr;
8982 struct sk_buff *msg;
8983 void *hdr;
8984 const u8 *addr;
8985 u64 cookie;
8986 int err;
8987
8988 if (wdev->iftype != NL80211_IFTYPE_AP &&
8989 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8990 return -EOPNOTSUPP;
8991
8992 if (!info->attrs[NL80211_ATTR_MAC])
8993 return -EINVAL;
8994
8995 if (!rdev->ops->probe_client)
8996 return -EOPNOTSUPP;
8997
8998 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8999 if (!msg)
9000 return -ENOMEM;
9001
15e47304 9002 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9003 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9004 if (!hdr) {
9005 err = -ENOBUFS;
7f6cf311
JB		 9006 goto free_msg;
9007 }
9008
9009 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9010
e35e4d28 9011 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9012 if (err)
9013 goto free_msg;
9014
9360ffd1
DM		 9015 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9016 goto nla_put_failure;
7f6cf311
JB		 9017
9018 genlmsg_end(msg, hdr);
9019
9020 return genlmsg_reply(msg, info);
9021
9022 nla_put_failure:
9023 err = -ENOBUFS;
9024 free_msg:
9025 nlmsg_free(msg);
9026 return err;
9027}
9028
5e760230
JB		 9029static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9030{
9031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9032 struct cfg80211_beacon_registration *reg, *nreg;
9033 int rv;
5e760230
JB		 9034
9035 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9036 return -EOPNOTSUPP;
9037
37c73b5f
BG		 9038 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9039 if (!nreg)
9040 return -ENOMEM;
9041
9042 /* First, check if already registered. */
9043 spin_lock_bh(&rdev->beacon_registrations_lock);
9044 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9045 if (reg->nlportid == info->snd_portid) {
9046 rv = -EALREADY;
9047 goto out_err;
9048 }
9049 }
9050 /* Add it to the list */
9051 nreg->nlportid = info->snd_portid;
9052 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9053
37c73b5f 9054 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9055
9056 return 0;
37c73b5f
BG		 9057out_err:
9058 spin_unlock_bh(&rdev->beacon_registrations_lock);
9059 kfree(nreg);
9060 return rv;
5e760230
JB		 9061}
9062
98104fde
JB		 9063static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9064{
9065 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9066 struct wireless_dev *wdev = info->user_ptr[1];
9067 int err;
9068
9069 if (!rdev->ops->start_p2p_device)
9070 return -EOPNOTSUPP;
9071
9072 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9073 return -EOPNOTSUPP;
9074
9075 if (wdev->p2p_started)
9076 return 0;
9077
b6a55015
LC		 9078 if (rfkill_blocked(rdev->rfkill))
9079 return -ERFKILL;
98104fde 9080
eeb126e9 9081 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9082 if (err)
9083 return err;
9084
9085 wdev->p2p_started = true;
98104fde 9086 rdev->opencount++;
98104fde
JB		 9087
9088 return 0;
9089}
9090
9091static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9092{
9093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9094 struct wireless_dev *wdev = info->user_ptr[1];
9095
9096 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9097 return -EOPNOTSUPP;
9098
9099 if (!rdev->ops->stop_p2p_device)
9100 return -EOPNOTSUPP;
9101
f9f47529 9102 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9103
9104 return 0;
9105}
9106
3713b4e3
JB		 9107static int nl80211_get_protocol_features(struct sk_buff *skb,
9108 struct genl_info *info)
9109{
9110 void *hdr;
9111 struct sk_buff *msg;
9112
9113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9114 if (!msg)
9115 return -ENOMEM;
9116
9117 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9118 NL80211_CMD_GET_PROTOCOL_FEATURES);
9119 if (!hdr)
9120 goto nla_put_failure;
9121
9122 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9123 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9124 goto nla_put_failure;
9125
9126 genlmsg_end(msg, hdr);
9127 return genlmsg_reply(msg, info);
9128
9129 nla_put_failure:
9130 kfree_skb(msg);
9131 return -ENOBUFS;
9132}
9133
355199e0
JM		 9134static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9135{
9136 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9137 struct cfg80211_update_ft_ies_params ft_params;
9138 struct net_device *dev = info->user_ptr[1];
9139
9140 if (!rdev->ops->update_ft_ies)
9141 return -EOPNOTSUPP;
9142
9143 if (!info->attrs[NL80211_ATTR_MDID] ||
9144 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9145 return -EINVAL;
9146
9147 memset(&ft_params, 0, sizeof(ft_params));
9148 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9149 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9150 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9151
9152 return rdev_update_ft_ies(rdev, dev, &ft_params);
9153}
9154
5de17984
AS		 9155static int nl80211_crit_protocol_start(struct sk_buff *skb,
9156 struct genl_info *info)
9157{
9158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9159 struct wireless_dev *wdev = info->user_ptr[1];
9160 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9161 u16 duration;
9162 int ret;
9163
9164 if (!rdev->ops->crit_proto_start)
9165 return -EOPNOTSUPP;
9166
9167 if (WARN_ON(!rdev->ops->crit_proto_stop))
9168 return -EINVAL;
9169
9170 if (rdev->crit_proto_nlportid)
9171 return -EBUSY;
9172
9173 /* determine protocol if provided */
9174 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9175 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9176
9177 if (proto >= NUM_NL80211_CRIT_PROTO)
9178 return -EINVAL;
9179
9180 /* timeout must be provided */
9181 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9182 return -EINVAL;
9183
9184 duration =
9185 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9186
9187 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9188 return -ERANGE;
9189
9190 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9191 if (!ret)
9192 rdev->crit_proto_nlportid = info->snd_portid;
9193
9194 return ret;
9195}
9196
9197static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9198 struct genl_info *info)
9199{
9200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9201 struct wireless_dev *wdev = info->user_ptr[1];
9202
9203 if (!rdev->ops->crit_proto_stop)
9204 return -EOPNOTSUPP;
9205
9206 if (rdev->crit_proto_nlportid) {
9207 rdev->crit_proto_nlportid = 0;
9208 rdev_crit_proto_stop(rdev, wdev);
9209 }
9210 return 0;
9211}
9212
ad7e718c
JB		 9213static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9214{
9215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9216 struct wireless_dev *wdev =
9217 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9218 int i, err;
9219 u32 vid, subcmd;
9220
9221 if (!rdev->wiphy.vendor_commands)
9222 return -EOPNOTSUPP;
9223
9224 if (IS_ERR(wdev)) {
9225 err = PTR_ERR(wdev);
9226 if (err != -EINVAL)
9227 return err;
9228 wdev = NULL;
9229 } else if (wdev->wiphy != &rdev->wiphy) {
9230 return -EINVAL;
9231 }
9232
9233 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9234 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9235 return -EINVAL;
9236
9237 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9238 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9239 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9240 const struct wiphy_vendor_command *vcmd;
9241 void *data = NULL;
9242 int len = 0;
9243
9244 vcmd = &rdev->wiphy.vendor_commands[i];
9245
9246 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9247 continue;
9248
9249 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9250 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9251 if (!wdev)
9252 return -EINVAL;
9253 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9254 !wdev->netdev)
9255 return -EINVAL;
9256
9257 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9258 if (wdev->netdev &&
9259 !netif_running(wdev->netdev))
9260 return -ENETDOWN;
9261 if (!wdev->netdev && !wdev->p2p_started)
9262 return -ENETDOWN;
9263 }
9264 } else {
9265 wdev = NULL;
9266 }
9267
9268 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9269 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9270 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9271 }
9272
9273 rdev->cur_cmd_info = info;
9274 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9275 data, len);
9276 rdev->cur_cmd_info = NULL;
9277 return err;
9278 }
9279
9280 return -EOPNOTSUPP;
9281}
9282
9283struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9284 enum nl80211_commands cmd,
9285 enum nl80211_attrs attr,
9286 int approxlen)
9287{
f26cbf40 9288 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9289
9290 if (WARN_ON(!rdev->cur_cmd_info))
9291 return NULL;
9292
9293 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9294 rdev->cur_cmd_info->snd_portid,
9295 rdev->cur_cmd_info->snd_seq,
567ffc35 9296 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9297}
9298EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9299
9300int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9301{
9302 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9303 void *hdr = ((void **)skb->cb)[1];
9304 struct nlattr *data = ((void **)skb->cb)[2];
9305
9306 if (WARN_ON(!rdev->cur_cmd_info)) {
9307 kfree_skb(skb);
9308 return -EINVAL;
9309 }
9310
9311 nla_nest_end(skb, data);
9312 genlmsg_end(skb, hdr);
9313 return genlmsg_reply(skb, rdev->cur_cmd_info);
9314}
9315EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9316
9317
fa9ffc74
KP		 9318static int nl80211_set_qos_map(struct sk_buff *skb,
9319 struct genl_info *info)
9320{
9321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9322 struct cfg80211_qos_map *qos_map = NULL;
9323 struct net_device *dev = info->user_ptr[1];
9324 u8 *pos, len, num_des, des_len, des;
9325 int ret;
9326
9327 if (!rdev->ops->set_qos_map)
9328 return -EOPNOTSUPP;
9329
9330 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9331 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9332 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9333
9334 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9335 len > IEEE80211_QOS_MAP_LEN_MAX)
9336 return -EINVAL;
9337
9338 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9339 if (!qos_map)
9340 return -ENOMEM;
9341
9342 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9343 if (num_des) {
9344 des_len = num_des *
9345 sizeof(struct cfg80211_dscp_exception);
9346 memcpy(qos_map->dscp_exception, pos, des_len);
9347 qos_map->num_des = num_des;
9348 for (des = 0; des < num_des; des++) {
9349 if (qos_map->dscp_exception[des].up > 7) {
9350 kfree(qos_map);
9351 return -EINVAL;
9352 }
9353 }
9354 pos += des_len;
9355 }
9356 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9357 }
9358
9359 wdev_lock(dev->ieee80211_ptr);
9360 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9361 if (!ret)
9362 ret = rdev_set_qos_map(rdev, dev, qos_map);
9363 wdev_unlock(dev->ieee80211_ptr);
9364
9365 kfree(qos_map);
9366 return ret;
9367}
9368
4c476991
JB		 9369#define NL80211_FLAG_NEED_WIPHY 0x01
9370#define NL80211_FLAG_NEED_NETDEV 0x02
9371#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9372#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9373#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9374 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9375#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9376/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9377#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9378 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9379
f84f771d 9380static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9381 struct genl_info *info)
9382{
9383 struct cfg80211_registered_device *rdev;
89a54e48 9384 struct wireless_dev *wdev;
4c476991 9385 struct net_device *dev;
4c476991
JB		 9386 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9387
9388 if (rtnl)
9389 rtnl_lock();
9390
9391 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9392 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9393 if (IS_ERR(rdev)) {
9394 if (rtnl)
9395 rtnl_unlock();
9396 return PTR_ERR(rdev);
9397 }
9398 info->user_ptr[0] = rdev;
1bf614ef
JB		 9399 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9400 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9401 ASSERT_RTNL();
9402
89a54e48
JB		 9403 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9404 info->attrs);
9405 if (IS_ERR(wdev)) {
4c476991
JB		 9406 if (rtnl)
9407 rtnl_unlock();
89a54e48 9408 return PTR_ERR(wdev);
4c476991 9409 }
89a54e48 9410
89a54e48 9411 dev = wdev->netdev;
f26cbf40 9412 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9413
1bf614ef
JB		 9414 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9415 if (!dev) {
1bf614ef
JB		 9416 if (rtnl)
9417 rtnl_unlock();
9418 return -EINVAL;
9419 }
9420
9421 info->user_ptr[1] = dev;
9422 } else {
9423 info->user_ptr[1] = wdev;
41265714 9424 }
1bf614ef
JB		 9425
9426 if (dev) {
9427 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9428 !netif_running(dev)) {
1bf614ef
JB		 9429 if (rtnl)
9430 rtnl_unlock();
9431 return -ENETDOWN;
9432 }
9433
9434 dev_hold(dev);
98104fde
JB		 9435 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9436 if (!wdev->p2p_started) {
98104fde
JB		 9437 if (rtnl)
9438 rtnl_unlock();
9439 return -ENETDOWN;
9440 }
41265714 9441 }
89a54e48 9442
4c476991 9443 info->user_ptr[0] = rdev;
4c476991
JB		 9444 }
9445
9446 return 0;
9447}
9448
f84f771d 9449static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9450 struct genl_info *info)
9451{
1bf614ef
JB		 9452 if (info->user_ptr[1]) {
9453 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9454 struct wireless_dev *wdev = info->user_ptr[1];
9455
9456 if (wdev->netdev)
9457 dev_put(wdev->netdev);
9458 } else {
9459 dev_put(info->user_ptr[1]);
9460 }
9461 }
4c476991
JB		 9462 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9463 rtnl_unlock();
9464}
9465
4534de83 9466static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9467 {
9468 .cmd = NL80211_CMD_GET_WIPHY,
9469 .doit = nl80211_get_wiphy,
9470 .dumpit = nl80211_dump_wiphy,
86e8cf98 9471 .done = nl80211_dump_wiphy_done,
55682965
JB		 9472 .policy = nl80211_policy,
9473 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9474 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9475 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9476 },
9477 {
9478 .cmd = NL80211_CMD_SET_WIPHY,
9479 .doit = nl80211_set_wiphy,
9480 .policy = nl80211_policy,
9481 .flags = GENL_ADMIN_PERM,
4c476991 9482 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9483 },
9484 {
9485 .cmd = NL80211_CMD_GET_INTERFACE,
9486 .doit = nl80211_get_interface,
9487 .dumpit = nl80211_dump_interface,
9488 .policy = nl80211_policy,
9489 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9490 .internal_flags = NL80211_FLAG_NEED_WDEV |
9491 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9492 },
9493 {
9494 .cmd = NL80211_CMD_SET_INTERFACE,
9495 .doit = nl80211_set_interface,
9496 .policy = nl80211_policy,
9497 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9498 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9499 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9500 },
9501 {
9502 .cmd = NL80211_CMD_NEW_INTERFACE,
9503 .doit = nl80211_new_interface,
9504 .policy = nl80211_policy,
9505 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9506 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9507 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9508 },
9509 {
9510 .cmd = NL80211_CMD_DEL_INTERFACE,
9511 .doit = nl80211_del_interface,
9512 .policy = nl80211_policy,
41ade00f 9513 .flags = GENL_ADMIN_PERM,
84efbb84 9514 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9515 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9516 },
9517 {
9518 .cmd = NL80211_CMD_GET_KEY,
9519 .doit = nl80211_get_key,
9520 .policy = nl80211_policy,
9521 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9523 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9524 },
9525 {
9526 .cmd = NL80211_CMD_SET_KEY,
9527 .doit = nl80211_set_key,
9528 .policy = nl80211_policy,
9529 .flags = GENL_ADMIN_PERM,
41265714 9530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9531 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9532 },
9533 {
9534 .cmd = NL80211_CMD_NEW_KEY,
9535 .doit = nl80211_new_key,
9536 .policy = nl80211_policy,
9537 .flags = GENL_ADMIN_PERM,
41265714 9538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9539 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9540 },
9541 {
9542 .cmd = NL80211_CMD_DEL_KEY,
9543 .doit = nl80211_del_key,
9544 .policy = nl80211_policy,
55682965 9545 .flags = GENL_ADMIN_PERM,
41265714 9546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9547 NL80211_FLAG_NEED_RTNL,
55682965 9548 },
ed1b6cc7
JB		 9549 {
9550 .cmd = NL80211_CMD_SET_BEACON,
9551 .policy = nl80211_policy,
9552 .flags = GENL_ADMIN_PERM,
8860020e 9553 .doit = nl80211_set_beacon,
2b5f8b0b 9554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9555 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9556 },
9557 {
8860020e 9558 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9559 .policy = nl80211_policy,
9560 .flags = GENL_ADMIN_PERM,
8860020e 9561 .doit = nl80211_start_ap,
2b5f8b0b 9562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9563 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9564 },
9565 {
8860020e 9566 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9567 .policy = nl80211_policy,
9568 .flags = GENL_ADMIN_PERM,
8860020e 9569 .doit = nl80211_stop_ap,
2b5f8b0b 9570 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9571 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9572 },
5727ef1b
JB		 9573 {
9574 .cmd = NL80211_CMD_GET_STATION,
9575 .doit = nl80211_get_station,
2ec600d6 9576 .dumpit = nl80211_dump_station,
5727ef1b 9577 .policy = nl80211_policy,
4c476991
JB		 9578 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9579 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9580 },
9581 {
9582 .cmd = NL80211_CMD_SET_STATION,
9583 .doit = nl80211_set_station,
9584 .policy = nl80211_policy,
9585 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9586 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9587 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9588 },
9589 {
9590 .cmd = NL80211_CMD_NEW_STATION,
9591 .doit = nl80211_new_station,
9592 .policy = nl80211_policy,
9593 .flags = GENL_ADMIN_PERM,
41265714 9594 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9595 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9596 },
9597 {
9598 .cmd = NL80211_CMD_DEL_STATION,
9599 .doit = nl80211_del_station,
9600 .policy = nl80211_policy,
2ec600d6 9601 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9603 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9604 },
9605 {
9606 .cmd = NL80211_CMD_GET_MPATH,
9607 .doit = nl80211_get_mpath,
9608 .dumpit = nl80211_dump_mpath,
9609 .policy = nl80211_policy,
9610 .flags = GENL_ADMIN_PERM,
41265714 9611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9612 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9613 },
9614 {
9615 .cmd = NL80211_CMD_SET_MPATH,
9616 .doit = nl80211_set_mpath,
9617 .policy = nl80211_policy,
9618 .flags = GENL_ADMIN_PERM,
41265714 9619 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9620 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9621 },
9622 {
9623 .cmd = NL80211_CMD_NEW_MPATH,
9624 .doit = nl80211_new_mpath,
9625 .policy = nl80211_policy,
9626 .flags = GENL_ADMIN_PERM,
41265714 9627 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9628 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9629 },
9630 {
9631 .cmd = NL80211_CMD_DEL_MPATH,
9632 .doit = nl80211_del_mpath,
9633 .policy = nl80211_policy,
9f1ba906 9634 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9635 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9636 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9637 },
9638 {
9639 .cmd = NL80211_CMD_SET_BSS,
9640 .doit = nl80211_set_bss,
9641 .policy = nl80211_policy,
b2e1b302 9642 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9643 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9644 NL80211_FLAG_NEED_RTNL,
b2e1b302 9645 },
f130347c
LR		 9646 {
9647 .cmd = NL80211_CMD_GET_REG,
9648 .doit = nl80211_get_reg,
9649 .policy = nl80211_policy,
5fe231e8 9650 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9651 /* can be retrieved by unprivileged users */
9652 },
b2e1b302
LR		 9653 {
9654 .cmd = NL80211_CMD_SET_REG,
9655 .doit = nl80211_set_reg,
9656 .policy = nl80211_policy,
9657 .flags = GENL_ADMIN_PERM,
5fe231e8 9658 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9659 },
9660 {
9661 .cmd = NL80211_CMD_REQ_SET_REG,
9662 .doit = nl80211_req_set_reg,
9663 .policy = nl80211_policy,
93da9cc1 9664 .flags = GENL_ADMIN_PERM,
9665 },
9666 {
24bdd9f4
JC		 9667 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9668 .doit = nl80211_get_mesh_config,
93da9cc1 9669 .policy = nl80211_policy,
9670 /* can be retrieved by unprivileged users */
2b5f8b0b 9671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9672 NL80211_FLAG_NEED_RTNL,
93da9cc1 9673 },
9674 {
24bdd9f4
JC		 9675 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9676 .doit = nl80211_update_mesh_config,
93da9cc1 9677 .policy = nl80211_policy,
9aed3cc1 9678 .flags = GENL_ADMIN_PERM,
29cbe68c 9679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9680 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9681 },
2a519311
JB		 9682 {
9683 .cmd = NL80211_CMD_TRIGGER_SCAN,
9684 .doit = nl80211_trigger_scan,
9685 .policy = nl80211_policy,
9686 .flags = GENL_ADMIN_PERM,
fd014284 9687 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9688 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9689 },
9690 {
9691 .cmd = NL80211_CMD_GET_SCAN,
9692 .policy = nl80211_policy,
9693 .dumpit = nl80211_dump_scan,
9694 },
807f8a8c
LC		 9695 {
9696 .cmd = NL80211_CMD_START_SCHED_SCAN,
9697 .doit = nl80211_start_sched_scan,
9698 .policy = nl80211_policy,
9699 .flags = GENL_ADMIN_PERM,
9700 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9701 NL80211_FLAG_NEED_RTNL,
9702 },
9703 {
9704 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9705 .doit = nl80211_stop_sched_scan,
9706 .policy = nl80211_policy,
9707 .flags = GENL_ADMIN_PERM,
9708 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9709 NL80211_FLAG_NEED_RTNL,
9710 },
636a5d36
JM		 9711 {
9712 .cmd = NL80211_CMD_AUTHENTICATE,
9713 .doit = nl80211_authenticate,
9714 .policy = nl80211_policy,
9715 .flags = GENL_ADMIN_PERM,
41265714 9716 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9717 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9718 },
9719 {
9720 .cmd = NL80211_CMD_ASSOCIATE,
9721 .doit = nl80211_associate,
9722 .policy = nl80211_policy,
9723 .flags = GENL_ADMIN_PERM,
41265714 9724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9725 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9726 },
9727 {
9728 .cmd = NL80211_CMD_DEAUTHENTICATE,
9729 .doit = nl80211_deauthenticate,
9730 .policy = nl80211_policy,
9731 .flags = GENL_ADMIN_PERM,
41265714 9732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9733 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9734 },
9735 {
9736 .cmd = NL80211_CMD_DISASSOCIATE,
9737 .doit = nl80211_disassociate,
9738 .policy = nl80211_policy,
9739 .flags = GENL_ADMIN_PERM,
41265714 9740 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9741 NL80211_FLAG_NEED_RTNL,
636a5d36 9742 },
04a773ad
JB		 9743 {
9744 .cmd = NL80211_CMD_JOIN_IBSS,
9745 .doit = nl80211_join_ibss,
9746 .policy = nl80211_policy,
9747 .flags = GENL_ADMIN_PERM,
41265714 9748 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9749 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9750 },
9751 {
9752 .cmd = NL80211_CMD_LEAVE_IBSS,
9753 .doit = nl80211_leave_ibss,
9754 .policy = nl80211_policy,
9755 .flags = GENL_ADMIN_PERM,
41265714 9756 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9757 NL80211_FLAG_NEED_RTNL,
04a773ad 9758 },
aff89a9b
JB		 9759#ifdef CONFIG_NL80211_TESTMODE
9760 {
9761 .cmd = NL80211_CMD_TESTMODE,
9762 .doit = nl80211_testmode_do,
71063f0e 9763 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9764 .policy = nl80211_policy,
9765 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9766 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9767 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9768 },
9769#endif
b23aa676
SO		 9770 {
9771 .cmd = NL80211_CMD_CONNECT,
9772 .doit = nl80211_connect,
9773 .policy = nl80211_policy,
9774 .flags = GENL_ADMIN_PERM,
41265714 9775 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9776 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9777 },
9778 {
9779 .cmd = NL80211_CMD_DISCONNECT,
9780 .doit = nl80211_disconnect,
9781 .policy = nl80211_policy,
9782 .flags = GENL_ADMIN_PERM,
41265714 9783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9784 NL80211_FLAG_NEED_RTNL,
b23aa676 9785 },
463d0183
JB		 9786 {
9787 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9788 .doit = nl80211_wiphy_netns,
9789 .policy = nl80211_policy,
9790 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9791 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9792 NL80211_FLAG_NEED_RTNL,
463d0183 9793 },
61fa713c
HS		 9794 {
9795 .cmd = NL80211_CMD_GET_SURVEY,
9796 .policy = nl80211_policy,
9797 .dumpit = nl80211_dump_survey,
9798 },
67fbb16b
SO		 9799 {
9800 .cmd = NL80211_CMD_SET_PMKSA,
9801 .doit = nl80211_setdel_pmksa,
9802 .policy = nl80211_policy,
9803 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9804 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9805 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9806 },
9807 {
9808 .cmd = NL80211_CMD_DEL_PMKSA,
9809 .doit = nl80211_setdel_pmksa,
9810 .policy = nl80211_policy,
9811 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9812 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9813 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9814 },
9815 {
9816 .cmd = NL80211_CMD_FLUSH_PMKSA,
9817 .doit = nl80211_flush_pmksa,
9818 .policy = nl80211_policy,
9819 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9820 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9821 NL80211_FLAG_NEED_RTNL,
67fbb16b 9822 },
9588bbd5
JM		 9823 {
9824 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9825 .doit = nl80211_remain_on_channel,
9826 .policy = nl80211_policy,
9827 .flags = GENL_ADMIN_PERM,
71bbc994 9828 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9829 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9830 },
9831 {
9832 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9833 .doit = nl80211_cancel_remain_on_channel,
9834 .policy = nl80211_policy,
9835 .flags = GENL_ADMIN_PERM,
71bbc994 9836 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9837 NL80211_FLAG_NEED_RTNL,
9588bbd5 9838 },
13ae75b1
JM		 9839 {
9840 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9841 .doit = nl80211_set_tx_bitrate_mask,
9842 .policy = nl80211_policy,
9843 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9844 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9845 NL80211_FLAG_NEED_RTNL,
13ae75b1 9846 },
026331c4 9847 {
2e161f78
JB		 9848 .cmd = NL80211_CMD_REGISTER_FRAME,
9849 .doit = nl80211_register_mgmt,
026331c4
JM		 9850 .policy = nl80211_policy,
9851 .flags = GENL_ADMIN_PERM,
71bbc994 9852 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9853 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9854 },
9855 {
2e161f78
JB		 9856 .cmd = NL80211_CMD_FRAME,
9857 .doit = nl80211_tx_mgmt,
026331c4 9858 .policy = nl80211_policy,
f7ca38df 9859 .flags = GENL_ADMIN_PERM,
71bbc994 9860 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9861 NL80211_FLAG_NEED_RTNL,
9862 },
9863 {
9864 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9865 .doit = nl80211_tx_mgmt_cancel_wait,
9866 .policy = nl80211_policy,
026331c4 9867 .flags = GENL_ADMIN_PERM,
71bbc994 9868 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9869 NL80211_FLAG_NEED_RTNL,
026331c4 9870 },
ffb9eb3d
KV		 9871 {
9872 .cmd = NL80211_CMD_SET_POWER_SAVE,
9873 .doit = nl80211_set_power_save,
9874 .policy = nl80211_policy,
9875 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9876 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9877 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9878 },
9879 {
9880 .cmd = NL80211_CMD_GET_POWER_SAVE,
9881 .doit = nl80211_get_power_save,
9882 .policy = nl80211_policy,
9883 /* can be retrieved by unprivileged users */
4c476991
JB		 9884 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9885 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9886 },
d6dc1a38
JO		 9887 {
9888 .cmd = NL80211_CMD_SET_CQM,
9889 .doit = nl80211_set_cqm,
9890 .policy = nl80211_policy,
9891 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9892 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9893 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9894 },
f444de05
JB		 9895 {
9896 .cmd = NL80211_CMD_SET_CHANNEL,
9897 .doit = nl80211_set_channel,
9898 .policy = nl80211_policy,
9899 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9900 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9901 NL80211_FLAG_NEED_RTNL,
f444de05 9902 },
e8347eba
BJ		 9903 {
9904 .cmd = NL80211_CMD_SET_WDS_PEER,
9905 .doit = nl80211_set_wds_peer,
9906 .policy = nl80211_policy,
9907 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9908 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9909 NL80211_FLAG_NEED_RTNL,
e8347eba 9910 },
29cbe68c
JB		 9911 {
9912 .cmd = NL80211_CMD_JOIN_MESH,
9913 .doit = nl80211_join_mesh,
9914 .policy = nl80211_policy,
9915 .flags = GENL_ADMIN_PERM,
9916 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9917 NL80211_FLAG_NEED_RTNL,
9918 },
9919 {
9920 .cmd = NL80211_CMD_LEAVE_MESH,
9921 .doit = nl80211_leave_mesh,
9922 .policy = nl80211_policy,
9923 .flags = GENL_ADMIN_PERM,
9924 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9925 NL80211_FLAG_NEED_RTNL,
9926 },
dfb89c56 9927#ifdef CONFIG_PM
ff1b6e69
JB		 9928 {
9929 .cmd = NL80211_CMD_GET_WOWLAN,
9930 .doit = nl80211_get_wowlan,
9931 .policy = nl80211_policy,
9932 /* can be retrieved by unprivileged users */
9933 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9934 NL80211_FLAG_NEED_RTNL,
9935 },
9936 {
9937 .cmd = NL80211_CMD_SET_WOWLAN,
9938 .doit = nl80211_set_wowlan,
9939 .policy = nl80211_policy,
9940 .flags = GENL_ADMIN_PERM,
9941 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9942 NL80211_FLAG_NEED_RTNL,
9943 },
dfb89c56 9944#endif
e5497d76
JB		 9945 {
9946 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9947 .doit = nl80211_set_rekey_data,
9948 .policy = nl80211_policy,
9949 .flags = GENL_ADMIN_PERM,
9950 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9951 NL80211_FLAG_NEED_RTNL,
9952 },
109086ce
AN		 9953 {
9954 .cmd = NL80211_CMD_TDLS_MGMT,
9955 .doit = nl80211_tdls_mgmt,
9956 .policy = nl80211_policy,
9957 .flags = GENL_ADMIN_PERM,
9958 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9959 NL80211_FLAG_NEED_RTNL,
9960 },
9961 {
9962 .cmd = NL80211_CMD_TDLS_OPER,
9963 .doit = nl80211_tdls_oper,
9964 .policy = nl80211_policy,
9965 .flags = GENL_ADMIN_PERM,
9966 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9967 NL80211_FLAG_NEED_RTNL,
9968 },
28946da7
JB		 9969 {
9970 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9971 .doit = nl80211_register_unexpected_frame,
9972 .policy = nl80211_policy,
9973 .flags = GENL_ADMIN_PERM,
9974 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9975 NL80211_FLAG_NEED_RTNL,
9976 },
7f6cf311
JB		 9977 {
9978 .cmd = NL80211_CMD_PROBE_CLIENT,
9979 .doit = nl80211_probe_client,
9980 .policy = nl80211_policy,
9981 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9983 NL80211_FLAG_NEED_RTNL,
9984 },
5e760230
JB		 9985 {
9986 .cmd = NL80211_CMD_REGISTER_BEACONS,
9987 .doit = nl80211_register_beacons,
9988 .policy = nl80211_policy,
9989 .flags = GENL_ADMIN_PERM,
9990 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9991 NL80211_FLAG_NEED_RTNL,
9992 },
1d9d9213
SW		 9993 {
9994 .cmd = NL80211_CMD_SET_NOACK_MAP,
9995 .doit = nl80211_set_noack_map,
9996 .policy = nl80211_policy,
9997 .flags = GENL_ADMIN_PERM,
9998 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9999 NL80211_FLAG_NEED_RTNL,
10000 },
98104fde
JB		 10001 {
10002 .cmd = NL80211_CMD_START_P2P_DEVICE,
10003 .doit = nl80211_start_p2p_device,
10004 .policy = nl80211_policy,
10005 .flags = GENL_ADMIN_PERM,
10006 .internal_flags = NL80211_FLAG_NEED_WDEV |
10007 NL80211_FLAG_NEED_RTNL,
10008 },
10009 {
10010 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10011 .doit = nl80211_stop_p2p_device,
10012 .policy = nl80211_policy,
10013 .flags = GENL_ADMIN_PERM,
10014 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10015 NL80211_FLAG_NEED_RTNL,
10016 },
f4e583c8
AQ		 10017 {
10018 .cmd = NL80211_CMD_SET_MCAST_RATE,
10019 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10020 .policy = nl80211_policy,
10021 .flags = GENL_ADMIN_PERM,
10022 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10023 NL80211_FLAG_NEED_RTNL,
10024 },
10025 {
10026 .cmd = NL80211_CMD_SET_MAC_ACL,
10027 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10028 .policy = nl80211_policy,
10029 .flags = GENL_ADMIN_PERM,
10030 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10031 NL80211_FLAG_NEED_RTNL,
10032 },
04f39047
SW		 10033 {
10034 .cmd = NL80211_CMD_RADAR_DETECT,
10035 .doit = nl80211_start_radar_detection,
10036 .policy = nl80211_policy,
10037 .flags = GENL_ADMIN_PERM,
10038 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10039 NL80211_FLAG_NEED_RTNL,
10040 },
3713b4e3
JB		 10041 {
10042 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10043 .doit = nl80211_get_protocol_features,
10044 .policy = nl80211_policy,
10045 },
355199e0
JM		 10046 {
10047 .cmd = NL80211_CMD_UPDATE_FT_IES,
10048 .doit = nl80211_update_ft_ies,
10049 .policy = nl80211_policy,
10050 .flags = GENL_ADMIN_PERM,
10051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10052 NL80211_FLAG_NEED_RTNL,
10053 },
5de17984
AS		 10054 {
10055 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10056 .doit = nl80211_crit_protocol_start,
10057 .policy = nl80211_policy,
10058 .flags = GENL_ADMIN_PERM,
10059 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10060 NL80211_FLAG_NEED_RTNL,
10061 },
10062 {
10063 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10064 .doit = nl80211_crit_protocol_stop,
10065 .policy = nl80211_policy,
10066 .flags = GENL_ADMIN_PERM,
10067 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10068 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10069 },
10070 {
10071 .cmd = NL80211_CMD_GET_COALESCE,
10072 .doit = nl80211_get_coalesce,
10073 .policy = nl80211_policy,
10074 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10075 NL80211_FLAG_NEED_RTNL,
10076 },
10077 {
10078 .cmd = NL80211_CMD_SET_COALESCE,
10079 .doit = nl80211_set_coalesce,
10080 .policy = nl80211_policy,
10081 .flags = GENL_ADMIN_PERM,
10082 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10083 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10084 },
10085 {
10086 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10087 .doit = nl80211_channel_switch,
10088 .policy = nl80211_policy,
10089 .flags = GENL_ADMIN_PERM,
10090 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10091 NL80211_FLAG_NEED_RTNL,
10092 },
ad7e718c
JB		 10093 {
10094 .cmd = NL80211_CMD_VENDOR,
10095 .doit = nl80211_vendor_cmd,
10096 .policy = nl80211_policy,
10097 .flags = GENL_ADMIN_PERM,
10098 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10099 NL80211_FLAG_NEED_RTNL,
10100 },
fa9ffc74
KP		 10101 {
10102 .cmd = NL80211_CMD_SET_QOS_MAP,
10103 .doit = nl80211_set_qos_map,
10104 .policy = nl80211_policy,
10105 .flags = GENL_ADMIN_PERM,
10106 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10107 NL80211_FLAG_NEED_RTNL,
10108 },
55682965 10109};
9588bbd5 10110
55682965
JB		 10111/* notification functions */
10112
3bb20556
JB		 10113void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10114 enum nl80211_commands cmd)
55682965
JB		 10115{
10116 struct sk_buff *msg;
86e8cf98 10117 struct nl80211_dump_wiphy_state state = {};
55682965 10118
3bb20556
JB		 10119 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10120 cmd != NL80211_CMD_DEL_WIPHY);
10121
fd2120ca 10122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10123 if (!msg)
10124 return;
10125
3bb20556 10126 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10127 nlmsg_free(msg);
10128 return;
10129 }
10130
68eb5503 10131 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10132 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10133}
10134
362a415d
JB		 10135static int nl80211_add_scan_req(struct sk_buff *msg,
10136 struct cfg80211_registered_device *rdev)
10137{
10138 struct cfg80211_scan_request *req = rdev->scan_req;
10139 struct nlattr *nest;
10140 int i;
10141
10142 if (WARN_ON(!req))
10143 return 0;
10144
10145 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10146 if (!nest)
10147 goto nla_put_failure;
9360ffd1
DM		 10148 for (i = 0; i < req->n_ssids; i++) {
10149 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10150 goto nla_put_failure;
10151 }
362a415d
JB		 10152 nla_nest_end(msg, nest);
10153
10154 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10155 if (!nest)
10156 goto nla_put_failure;
9360ffd1
DM		 10157 for (i = 0; i < req->n_channels; i++) {
10158 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10159 goto nla_put_failure;
10160 }
362a415d
JB		 10161 nla_nest_end(msg, nest);
10162
9360ffd1
DM		 10163 if (req->ie &&
10164 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10165 goto nla_put_failure;
362a415d 10166
ae917c9f
JB		 10167 if (req->flags &&
10168 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10169 goto nla_put_failure;
ed473771 10170
362a415d
JB		 10171 return 0;
10172 nla_put_failure:
10173 return -ENOBUFS;
10174}
10175
a538e2d5
JB		 10176static int nl80211_send_scan_msg(struct sk_buff *msg,
10177 struct cfg80211_registered_device *rdev,
fd014284 10178 struct wireless_dev *wdev,
15e47304 10179 u32 portid, u32 seq, int flags,
a538e2d5 10180 u32 cmd)
2a519311
JB		 10181{
10182 void *hdr;
10183
15e47304 10184 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10185 if (!hdr)
10186 return -1;
10187
9360ffd1 10188 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10189 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10190 wdev->netdev->ifindex)) ||
10191 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10192 goto nla_put_failure;
2a519311 10193
362a415d
JB		 10194 /* ignore errors and send incomplete event anyway */
10195 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10196
10197 return genlmsg_end(msg, hdr);
10198
10199 nla_put_failure:
10200 genlmsg_cancel(msg, hdr);
10201 return -EMSGSIZE;
10202}
10203
807f8a8c
LC		 10204static int
10205nl80211_send_sched_scan_msg(struct sk_buff *msg,
10206 struct cfg80211_registered_device *rdev,
10207 struct net_device *netdev,
15e47304 10208 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10209{
10210 void *hdr;
10211
15e47304 10212 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10213 if (!hdr)
10214 return -1;
10215
9360ffd1
DM		 10216 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10217 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10218 goto nla_put_failure;
807f8a8c
LC		 10219
10220 return genlmsg_end(msg, hdr);
10221
10222 nla_put_failure:
10223 genlmsg_cancel(msg, hdr);
10224 return -EMSGSIZE;
10225}
10226
a538e2d5 10227void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10228 struct wireless_dev *wdev)
a538e2d5
JB		 10229{
10230 struct sk_buff *msg;
10231
58050fce 10232 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10233 if (!msg)
10234 return;
10235
fd014284 10236 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10237 NL80211_CMD_TRIGGER_SCAN) < 0) {
10238 nlmsg_free(msg);
10239 return;
10240 }
10241
68eb5503 10242 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10243 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10244}
10245
f9d15d16
JB		 10246struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10247 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10248{
10249 struct sk_buff *msg;
10250
fd2120ca 10251 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10252 if (!msg)
f9d15d16 10253 return NULL;
2a519311 10254
fd014284 10255 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10256 aborted ? NL80211_CMD_SCAN_ABORTED :
10257 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10258 nlmsg_free(msg);
f9d15d16 10259 return NULL;
2a519311
JB		 10260 }
10261
f9d15d16 10262 return msg;
2a519311
JB		 10263}
10264
f9d15d16
JB		 10265void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10266 struct sk_buff *msg)
2a519311 10267{
2a519311
JB		 10268 if (!msg)
10269 return;
10270
68eb5503 10271 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10272 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10273}
10274
807f8a8c
LC		 10275void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10276 struct net_device *netdev)
10277{
10278 struct sk_buff *msg;
10279
10280 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10281 if (!msg)
10282 return;
10283
10284 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10285 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10286 nlmsg_free(msg);
10287 return;
10288 }
10289
68eb5503 10290 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10291 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10292}
10293
10294void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10295 struct net_device *netdev, u32 cmd)
10296{
10297 struct sk_buff *msg;
10298
58050fce 10299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10300 if (!msg)
10301 return;
10302
10303 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10304 nlmsg_free(msg);
10305 return;
10306 }
10307
68eb5503 10308 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10309 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10310}
10311
73d54c9e
LR		 10312/*
10313 * This can happen on global regulatory changes or device specific settings
10314 * based on custom world regulatory domains.
10315 */
10316void nl80211_send_reg_change_event(struct regulatory_request *request)
10317{
10318 struct sk_buff *msg;
10319 void *hdr;
10320
fd2120ca 10321 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10322 if (!msg)
10323 return;
10324
10325 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10326 if (!hdr) {
10327 nlmsg_free(msg);
10328 return;
10329 }
10330
10331 /* Userspace can always count this one always being set */
9360ffd1
DM		 10332 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10333 goto nla_put_failure;
10334
10335 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10336 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10337 NL80211_REGDOM_TYPE_WORLD))
10338 goto nla_put_failure;
10339 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10340 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10341 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10342 goto nla_put_failure;
10343 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10344 request->intersect) {
10345 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10346 NL80211_REGDOM_TYPE_INTERSECTION))
10347 goto nla_put_failure;
10348 } else {
10349 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10350 NL80211_REGDOM_TYPE_COUNTRY) ||
10351 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10352 request->alpha2))
10353 goto nla_put_failure;
10354 }
10355
f4173766 10356 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10357 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10358 goto nla_put_failure;
73d54c9e 10359
3b7b72ee 10360 genlmsg_end(msg, hdr);
73d54c9e 10361
bc43b28c 10362 rcu_read_lock();
68eb5503 10363 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10364 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10365 rcu_read_unlock();
73d54c9e
LR		 10366
10367 return;
10368
10369nla_put_failure:
10370 genlmsg_cancel(msg, hdr);
10371 nlmsg_free(msg);
10372}
10373
6039f6d2
JM		 10374static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10375 struct net_device *netdev,
10376 const u8 *buf, size_t len,
e6d6e342 10377 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10378{
10379 struct sk_buff *msg;
10380 void *hdr;
10381
e6d6e342 10382 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10383 if (!msg)
10384 return;
10385
10386 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10387 if (!hdr) {
10388 nlmsg_free(msg);
10389 return;
10390 }
10391
9360ffd1
DM		 10392 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10393 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10394 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10395 goto nla_put_failure;
6039f6d2 10396
3b7b72ee 10397 genlmsg_end(msg, hdr);
6039f6d2 10398
68eb5503 10399 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10400 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10401 return;
10402
10403 nla_put_failure:
10404 genlmsg_cancel(msg, hdr);
10405 nlmsg_free(msg);
10406}
10407
10408void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10409 struct net_device *netdev, const u8 *buf,
10410 size_t len, gfp_t gfp)
6039f6d2
JM		 10411{
10412 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10413 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10414}
10415
10416void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10417 struct net_device *netdev, const u8 *buf,
e6d6e342 10418 size_t len, gfp_t gfp)
6039f6d2 10419{
e6d6e342
JB		 10420 nl80211_send_mlme_event(rdev, netdev, buf, len,
10421 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10422}
10423
53b46b84 10424void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10425 struct net_device *netdev, const u8 *buf,
10426 size_t len, gfp_t gfp)
6039f6d2
JM		 10427{
10428 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10429 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10430}
10431
53b46b84
JM		 10432void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10433 struct net_device *netdev, const u8 *buf,
e6d6e342 10434 size_t len, gfp_t gfp)
6039f6d2
JM		 10435{
10436 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10437 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10438}
10439
6ff57cf8
JB		 10440void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10441 size_t len)
cf4e594e 10442{
947add36
JB		 10443 struct wireless_dev *wdev = dev->ieee80211_ptr;
10444 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10445 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10446 const struct ieee80211_mgmt *mgmt = (void *)buf;
10447 u32 cmd;
947add36 10448
6ff57cf8
JB		 10449 if (WARN_ON(len < 2))
10450 return;
cf4e594e 10451
6ff57cf8
JB		 10452 if (ieee80211_is_deauth(mgmt->frame_control))
10453 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10454 else
10455 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10456
6ff57cf8
JB		 10457 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10458 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10459}
6ff57cf8 10460EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10461
1b06bb40
LR		 10462static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10463 struct net_device *netdev, int cmd,
e6d6e342 10464 const u8 *addr, gfp_t gfp)
1965c853
JM		 10465{
10466 struct sk_buff *msg;
10467 void *hdr;
10468
e6d6e342 10469 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10470 if (!msg)
10471 return;
10472
10473 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10474 if (!hdr) {
10475 nlmsg_free(msg);
10476 return;
10477 }
10478
9360ffd1
DM		 10479 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10480 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10481 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10483 goto nla_put_failure;
1965c853 10484
3b7b72ee 10485 genlmsg_end(msg, hdr);
1965c853 10486
68eb5503 10487 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10488 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10489 return;
10490
10491 nla_put_failure:
10492 genlmsg_cancel(msg, hdr);
10493 nlmsg_free(msg);
10494}
10495
10496void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10497 struct net_device *netdev, const u8 *addr,
10498 gfp_t gfp)
1965c853
JM		 10499{
10500 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10501 addr, gfp);
1965c853
JM		 10502}
10503
10504void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10505 struct net_device *netdev, const u8 *addr,
10506 gfp_t gfp)
1965c853 10507{
e6d6e342
JB		 10508 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10509 addr, gfp);
1965c853
JM		 10510}
10511
b23aa676
SO		 10512void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10513 struct net_device *netdev, const u8 *bssid,
10514 const u8 *req_ie, size_t req_ie_len,
10515 const u8 *resp_ie, size_t resp_ie_len,
10516 u16 status, gfp_t gfp)
10517{
10518 struct sk_buff *msg;
10519 void *hdr;
10520
58050fce 10521 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10522 if (!msg)
10523 return;
10524
10525 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10526 if (!hdr) {
10527 nlmsg_free(msg);
10528 return;
10529 }
10530
9360ffd1
DM		 10531 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10532 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10533 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10534 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10535 (req_ie &&
10536 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10537 (resp_ie &&
10538 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10539 goto nla_put_failure;
b23aa676 10540
3b7b72ee 10541 genlmsg_end(msg, hdr);
b23aa676 10542
68eb5503 10543 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10544 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10545 return;
10546
10547 nla_put_failure:
10548 genlmsg_cancel(msg, hdr);
10549 nlmsg_free(msg);
10550
10551}
10552
10553void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10554 struct net_device *netdev, const u8 *bssid,
10555 const u8 *req_ie, size_t req_ie_len,
10556 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10557{
10558 struct sk_buff *msg;
10559 void *hdr;
10560
58050fce 10561 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10562 if (!msg)
10563 return;
10564
10565 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10566 if (!hdr) {
10567 nlmsg_free(msg);
10568 return;
10569 }
10570
9360ffd1
DM		 10571 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10572 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10573 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10574 (req_ie &&
10575 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10576 (resp_ie &&
10577 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10578 goto nla_put_failure;
b23aa676 10579
3b7b72ee 10580 genlmsg_end(msg, hdr);
b23aa676 10581
68eb5503 10582 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10583 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10584 return;
10585
10586 nla_put_failure:
10587 genlmsg_cancel(msg, hdr);
10588 nlmsg_free(msg);
10589
10590}
10591
10592void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10593 struct net_device *netdev, u16 reason,
667503dd 10594 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10595{
10596 struct sk_buff *msg;
10597 void *hdr;
10598
58050fce 10599 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10600 if (!msg)
10601 return;
10602
10603 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10604 if (!hdr) {
10605 nlmsg_free(msg);
10606 return;
10607 }
10608
9360ffd1
DM		 10609 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10610 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10611 (from_ap && reason &&
10612 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10613 (from_ap &&
10614 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10615 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10616 goto nla_put_failure;
b23aa676 10617
3b7b72ee 10618 genlmsg_end(msg, hdr);
b23aa676 10619
68eb5503 10620 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10621 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10622 return;
10623
10624 nla_put_failure:
10625 genlmsg_cancel(msg, hdr);
10626 nlmsg_free(msg);
10627
10628}
10629
04a773ad
JB		 10630void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10631 struct net_device *netdev, const u8 *bssid,
10632 gfp_t gfp)
10633{
10634 struct sk_buff *msg;
10635 void *hdr;
10636
fd2120ca 10637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10638 if (!msg)
10639 return;
10640
10641 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10642 if (!hdr) {
10643 nlmsg_free(msg);
10644 return;
10645 }
10646
9360ffd1
DM		 10647 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10648 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10649 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10650 goto nla_put_failure;
04a773ad 10651
3b7b72ee 10652 genlmsg_end(msg, hdr);
04a773ad 10653
68eb5503 10654 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10655 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10656 return;
10657
10658 nla_put_failure:
10659 genlmsg_cancel(msg, hdr);
10660 nlmsg_free(msg);
10661}
10662
947add36
JB		 10663void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10664 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10665{
947add36 10666 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10667 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10668 struct sk_buff *msg;
10669 void *hdr;
10670
947add36
JB		 10671 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10672 return;
10673
10674 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10675
c93b5e71
JC		 10676 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10677 if (!msg)
10678 return;
10679
10680 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10681 if (!hdr) {
10682 nlmsg_free(msg);
10683 return;
10684 }
10685
9360ffd1 10686 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10687 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10688 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10689 (ie_len && ie &&
10690 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10691 goto nla_put_failure;
c93b5e71 10692
3b7b72ee 10693 genlmsg_end(msg, hdr);
c93b5e71 10694
68eb5503 10695 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10696 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10697 return;
10698
10699 nla_put_failure:
10700 genlmsg_cancel(msg, hdr);
10701 nlmsg_free(msg);
10702}
947add36 10703EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10704
a3b8b056
JM		 10705void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10706 struct net_device *netdev, const u8 *addr,
10707 enum nl80211_key_type key_type, int key_id,
e6d6e342 10708 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10709{
10710 struct sk_buff *msg;
10711 void *hdr;
10712
e6d6e342 10713 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10714 if (!msg)
10715 return;
10716
10717 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10718 if (!hdr) {
10719 nlmsg_free(msg);
10720 return;
10721 }
10722
9360ffd1
DM		 10723 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10724 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10725 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10726 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10727 (key_id != -1 &&
10728 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10729 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10730 goto nla_put_failure;
a3b8b056 10731
3b7b72ee 10732 genlmsg_end(msg, hdr);
a3b8b056 10733
68eb5503 10734 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10735 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10736 return;
10737
10738 nla_put_failure:
10739 genlmsg_cancel(msg, hdr);
10740 nlmsg_free(msg);
10741}
10742
6bad8766
LR		 10743void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10744 struct ieee80211_channel *channel_before,
10745 struct ieee80211_channel *channel_after)
10746{
10747 struct sk_buff *msg;
10748 void *hdr;
10749 struct nlattr *nl_freq;
10750
fd2120ca 10751 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10752 if (!msg)
10753 return;
10754
10755 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10756 if (!hdr) {
10757 nlmsg_free(msg);
10758 return;
10759 }
10760
10761 /*
10762 * Since we are applying the beacon hint to a wiphy we know its
10763 * wiphy_idx is valid
10764 */
9360ffd1
DM		 10765 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10766 goto nla_put_failure;
6bad8766
LR		 10767
10768 /* Before */
10769 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10770 if (!nl_freq)
10771 goto nla_put_failure;
cdc89b97 10772 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10773 goto nla_put_failure;
10774 nla_nest_end(msg, nl_freq);
10775
10776 /* After */
10777 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10778 if (!nl_freq)
10779 goto nla_put_failure;
cdc89b97 10780 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10781 goto nla_put_failure;
10782 nla_nest_end(msg, nl_freq);
10783
3b7b72ee 10784 genlmsg_end(msg, hdr);
6bad8766 10785
463d0183 10786 rcu_read_lock();
68eb5503 10787 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10788 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10789 rcu_read_unlock();
6bad8766
LR		 10790
10791 return;
10792
10793nla_put_failure:
10794 genlmsg_cancel(msg, hdr);
10795 nlmsg_free(msg);
10796}
10797
9588bbd5
JM		 10798static void nl80211_send_remain_on_chan_event(
10799 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10800 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10801 struct ieee80211_channel *chan,
9588bbd5
JM		 10802 unsigned int duration, gfp_t gfp)
10803{
10804 struct sk_buff *msg;
10805 void *hdr;
10806
10807 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10808 if (!msg)
10809 return;
10810
10811 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10812 if (!hdr) {
10813 nlmsg_free(msg);
10814 return;
10815 }
10816
9360ffd1 10817 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10818 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10819 wdev->netdev->ifindex)) ||
00f53350 10820 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10821 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10822 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10823 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10824 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10825 goto nla_put_failure;
9588bbd5 10826
9360ffd1
DM		 10827 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10828 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10829 goto nla_put_failure;
9588bbd5 10830
3b7b72ee 10831 genlmsg_end(msg, hdr);
9588bbd5 10832
68eb5503 10833 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10834 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10835 return;
10836
10837 nla_put_failure:
10838 genlmsg_cancel(msg, hdr);
10839 nlmsg_free(msg);
10840}
10841
947add36
JB		 10842void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10843 struct ieee80211_channel *chan,
10844 unsigned int duration, gfp_t gfp)
9588bbd5 10845{
947add36 10846 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10847 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10848
10849 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10850 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10851 rdev, wdev, cookie, chan,
42d97a59 10852 duration, gfp);
9588bbd5 10853}
947add36 10854EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10855
947add36
JB		 10856void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10857 struct ieee80211_channel *chan,
10858 gfp_t gfp)
9588bbd5 10859{
947add36 10860 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10861 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10862
10863 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10864 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10865 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10866}
947add36 10867EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10868
947add36
JB		 10869void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10870 struct station_info *sinfo, gfp_t gfp)
98b62183 10871{
947add36 10872 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10873 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10874 struct sk_buff *msg;
10875
947add36
JB		 10876 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10877
58050fce 10878 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10879 if (!msg)
10880 return;
10881
66266b3a
JL		 10882 if (nl80211_send_station(msg, 0, 0, 0,
10883 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10884 nlmsg_free(msg);
10885 return;
10886 }
10887
68eb5503 10888 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10889 NL80211_MCGRP_MLME, gfp);
98b62183 10890}
947add36 10891EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10892
947add36 10893void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10894{
947add36 10895 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10896 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10897 struct sk_buff *msg;
10898 void *hdr;
10899
947add36
JB		 10900 trace_cfg80211_del_sta(dev, mac_addr);
10901
58050fce 10902 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10903 if (!msg)
10904 return;
10905
10906 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10907 if (!hdr) {
10908 nlmsg_free(msg);
10909 return;
10910 }
10911
9360ffd1
DM		 10912 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10913 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10914 goto nla_put_failure;
ec15e68b 10915
3b7b72ee 10916 genlmsg_end(msg, hdr);
ec15e68b 10917
68eb5503 10918 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10919 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10920 return;
10921
10922 nla_put_failure:
10923 genlmsg_cancel(msg, hdr);
10924 nlmsg_free(msg);
10925}
947add36 10926EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10927
947add36
JB		 10928void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10929 enum nl80211_connect_failed_reason reason,
10930 gfp_t gfp)
ed44a951 10931{
947add36 10932 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10933 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10934 struct sk_buff *msg;
10935 void *hdr;
10936
10937 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10938 if (!msg)
10939 return;
10940
10941 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10942 if (!hdr) {
10943 nlmsg_free(msg);
10944 return;
10945 }
10946
10947 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10948 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10949 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10950 goto nla_put_failure;
10951
10952 genlmsg_end(msg, hdr);
10953
68eb5503 10954 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10955 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10956 return;
10957
10958 nla_put_failure:
10959 genlmsg_cancel(msg, hdr);
10960 nlmsg_free(msg);
10961}
947add36 10962EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10963
b92ab5d8
JB		 10964static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10965 const u8 *addr, gfp_t gfp)
28946da7
JB		 10966{
10967 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10968 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10969 struct sk_buff *msg;
10970 void *hdr;
15e47304 10971 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10972
15e47304 10973 if (!nlportid)
28946da7
JB		 10974 return false;
10975
10976 msg = nlmsg_new(100, gfp);
10977 if (!msg)
10978 return true;
10979
b92ab5d8 10980 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10981 if (!hdr) {
10982 nlmsg_free(msg);
10983 return true;
10984 }
10985
9360ffd1
DM		 10986 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10987 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10988 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10989 goto nla_put_failure;
28946da7 10990
9c90a9f6 10991 genlmsg_end(msg, hdr);
15e47304 10992 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10993 return true;
10994
10995 nla_put_failure:
10996 genlmsg_cancel(msg, hdr);
10997 nlmsg_free(msg);
10998 return true;
10999}
11000
947add36
JB		 11001bool cfg80211_rx_spurious_frame(struct net_device *dev,
11002 const u8 *addr, gfp_t gfp)
b92ab5d8 11003{
947add36
JB		 11004 struct wireless_dev *wdev = dev->ieee80211_ptr;
11005 bool ret;
11006
11007 trace_cfg80211_rx_spurious_frame(dev, addr);
11008
11009 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11010 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11011 trace_cfg80211_return_bool(false);
11012 return false;
11013 }
11014 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11015 addr, gfp);
11016 trace_cfg80211_return_bool(ret);
11017 return ret;
b92ab5d8 11018}
947add36 11019EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11020
947add36
JB		 11021bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11022 const u8 *addr, gfp_t gfp)
b92ab5d8 11023{
947add36
JB		 11024 struct wireless_dev *wdev = dev->ieee80211_ptr;
11025 bool ret;
11026
11027 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11028
11029 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11030 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11031 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11032 trace_cfg80211_return_bool(false);
11033 return false;
11034 }
11035 ret = __nl80211_unexpected_frame(dev,
11036 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11037 addr, gfp);
11038 trace_cfg80211_return_bool(ret);
11039 return ret;
b92ab5d8 11040}
947add36 11041EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11042
2e161f78 11043int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11044 struct wireless_dev *wdev, u32 nlportid,
804483e9 11045 int freq, int sig_dbm,
19504cf5 11046 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11047{
71bbc994 11048 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11049 struct sk_buff *msg;
11050 void *hdr;
026331c4
JM		 11051
11052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11053 if (!msg)
11054 return -ENOMEM;
11055
2e161f78 11056 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11057 if (!hdr) {
11058 nlmsg_free(msg);
11059 return -ENOMEM;
11060 }
11061
9360ffd1 11062 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11063 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11064 netdev->ifindex)) ||
a838490b 11065 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11066 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11067 (sig_dbm &&
11068 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11069 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11070 (flags &&
11071 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11072 goto nla_put_failure;
026331c4 11073
3b7b72ee 11074 genlmsg_end(msg, hdr);
026331c4 11075
15e47304 11076 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11077
11078 nla_put_failure:
11079 genlmsg_cancel(msg, hdr);
11080 nlmsg_free(msg);
11081 return -ENOBUFS;
11082}
11083
947add36
JB		 11084void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11085 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11086{
947add36 11087 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11088 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11089 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11090 struct sk_buff *msg;
11091 void *hdr;
11092
947add36
JB		 11093 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11094
026331c4
JM		 11095 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11096 if (!msg)
11097 return;
11098
2e161f78 11099 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11100 if (!hdr) {
11101 nlmsg_free(msg);
11102 return;
11103 }
11104
9360ffd1 11105 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11106 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11107 netdev->ifindex)) ||
a838490b 11108 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11109 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11110 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11111 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11112 goto nla_put_failure;
026331c4 11113
3b7b72ee 11114 genlmsg_end(msg, hdr);
026331c4 11115
68eb5503 11116 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11117 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11118 return;
11119
11120 nla_put_failure:
11121 genlmsg_cancel(msg, hdr);
11122 nlmsg_free(msg);
11123}
947add36 11124EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11125
947add36
JB		 11126void cfg80211_cqm_rssi_notify(struct net_device *dev,
11127 enum nl80211_cqm_rssi_threshold_event rssi_event,
11128 gfp_t gfp)
d6dc1a38 11129{
947add36
JB		 11130 struct wireless_dev *wdev = dev->ieee80211_ptr;
11131 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11132 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11133 struct sk_buff *msg;
11134 struct nlattr *pinfoattr;
11135 void *hdr;
11136
947add36
JB		 11137 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11138
58050fce 11139 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11140 if (!msg)
11141 return;
11142
11143 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11144 if (!hdr) {
11145 nlmsg_free(msg);
11146 return;
11147 }
11148
9360ffd1 11149 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11150 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11151 goto nla_put_failure;
d6dc1a38
JO		 11152
11153 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11154 if (!pinfoattr)
11155 goto nla_put_failure;
11156
9360ffd1
DM		 11157 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11158 rssi_event))
11159 goto nla_put_failure;
d6dc1a38
JO		 11160
11161 nla_nest_end(msg, pinfoattr);
11162
3b7b72ee 11163 genlmsg_end(msg, hdr);
d6dc1a38 11164
68eb5503 11165 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11166 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11167 return;
11168
11169 nla_put_failure:
11170 genlmsg_cancel(msg, hdr);
11171 nlmsg_free(msg);
11172}
947add36 11173EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11174
947add36
JB		 11175static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11176 struct net_device *netdev, const u8 *bssid,
11177 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11178{
11179 struct sk_buff *msg;
11180 struct nlattr *rekey_attr;
11181 void *hdr;
11182
58050fce 11183 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11184 if (!msg)
11185 return;
11186
11187 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11188 if (!hdr) {
11189 nlmsg_free(msg);
11190 return;
11191 }
11192
9360ffd1
DM		 11193 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11194 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11195 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11196 goto nla_put_failure;
e5497d76
JB		 11197
11198 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11199 if (!rekey_attr)
11200 goto nla_put_failure;
11201
9360ffd1
DM		 11202 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11203 NL80211_REPLAY_CTR_LEN, replay_ctr))
11204 goto nla_put_failure;
e5497d76
JB		 11205
11206 nla_nest_end(msg, rekey_attr);
11207
3b7b72ee 11208 genlmsg_end(msg, hdr);
e5497d76 11209
68eb5503 11210 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11211 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11212 return;
11213
11214 nla_put_failure:
11215 genlmsg_cancel(msg, hdr);
11216 nlmsg_free(msg);
11217}
11218
947add36
JB		 11219void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11220 const u8 *replay_ctr, gfp_t gfp)
11221{
11222 struct wireless_dev *wdev = dev->ieee80211_ptr;
11223 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11224 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11225
11226 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11227 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11228}
11229EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11230
11231static void
11232nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11233 struct net_device *netdev, int index,
11234 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11235{
11236 struct sk_buff *msg;
11237 struct nlattr *attr;
11238 void *hdr;
11239
58050fce 11240 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11241 if (!msg)
11242 return;
11243
11244 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11245 if (!hdr) {
11246 nlmsg_free(msg);
11247 return;
11248 }
11249
9360ffd1
DM		 11250 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11251 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11252 goto nla_put_failure;
c9df56b4
JM		 11253
11254 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11255 if (!attr)
11256 goto nla_put_failure;
11257
9360ffd1
DM		 11258 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11259 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11260 (preauth &&
11261 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11262 goto nla_put_failure;
c9df56b4
JM		 11263
11264 nla_nest_end(msg, attr);
11265
3b7b72ee 11266 genlmsg_end(msg, hdr);
c9df56b4 11267
68eb5503 11268 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11269 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11270 return;
11271
11272 nla_put_failure:
11273 genlmsg_cancel(msg, hdr);
11274 nlmsg_free(msg);
11275}
11276
947add36
JB		 11277void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11278 const u8 *bssid, bool preauth, gfp_t gfp)
11279{
11280 struct wireless_dev *wdev = dev->ieee80211_ptr;
11281 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11282 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11283
11284 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11285 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11286}
11287EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11288
11289static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11290 struct net_device *netdev,
11291 struct cfg80211_chan_def *chandef,
11292 gfp_t gfp)
5314526b
TP		 11293{
11294 struct sk_buff *msg;
11295 void *hdr;
11296
58050fce 11297 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11298 if (!msg)
11299 return;
11300
11301 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11302 if (!hdr) {
11303 nlmsg_free(msg);
11304 return;
11305 }
11306
683b6d3b
JB		 11307 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11308 goto nla_put_failure;
11309
11310 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11311 goto nla_put_failure;
5314526b
TP		 11312
11313 genlmsg_end(msg, hdr);
11314
68eb5503 11315 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11316 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11317 return;
11318
11319 nla_put_failure:
11320 genlmsg_cancel(msg, hdr);
11321 nlmsg_free(msg);
11322}
11323
947add36
JB		 11324void cfg80211_ch_switch_notify(struct net_device *dev,
11325 struct cfg80211_chan_def *chandef)
84f10708 11326{
947add36
JB		 11327 struct wireless_dev *wdev = dev->ieee80211_ptr;
11328 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11329 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11330
e487eaeb 11331 ASSERT_WDEV_LOCK(wdev);
947add36 11332
e487eaeb 11333 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11334
11335 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11336 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11337 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11338 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11339 return;
947add36 11340
9e0e2961 11341 wdev->chandef = *chandef;
96f55f12 11342 wdev->preset_chandef = *chandef;
947add36 11343 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11344}
11345EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11346
11347void cfg80211_cqm_txe_notify(struct net_device *dev,
11348 const u8 *peer, u32 num_packets,
11349 u32 rate, u32 intvl, gfp_t gfp)
11350{
11351 struct wireless_dev *wdev = dev->ieee80211_ptr;
11352 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11353 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11354 struct sk_buff *msg;
11355 struct nlattr *pinfoattr;
11356 void *hdr;
11357
11358 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11359 if (!msg)
11360 return;
11361
11362 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11363 if (!hdr) {
11364 nlmsg_free(msg);
11365 return;
11366 }
11367
11368 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11369 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11370 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11371 goto nla_put_failure;
11372
11373 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11374 if (!pinfoattr)
11375 goto nla_put_failure;
11376
11377 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11378 goto nla_put_failure;
11379
11380 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11381 goto nla_put_failure;
11382
11383 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11384 goto nla_put_failure;
11385
11386 nla_nest_end(msg, pinfoattr);
11387
11388 genlmsg_end(msg, hdr);
11389
68eb5503 11390 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11391 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11392 return;
11393
11394 nla_put_failure:
11395 genlmsg_cancel(msg, hdr);
11396 nlmsg_free(msg);
11397}
947add36 11398EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11399
04f39047
SW		 11400void
11401nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11402 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11403 enum nl80211_radar_event event,
11404 struct net_device *netdev, gfp_t gfp)
11405{
11406 struct sk_buff *msg;
11407 void *hdr;
11408
11409 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11410 if (!msg)
11411 return;
11412
11413 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11414 if (!hdr) {
11415 nlmsg_free(msg);
11416 return;
11417 }
11418
11419 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11420 goto nla_put_failure;
11421
11422 /* NOP and radar events don't need a netdev parameter */
11423 if (netdev) {
11424 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11425
11426 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11427 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11428 goto nla_put_failure;
11429 }
11430
11431 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11432 goto nla_put_failure;
11433
11434 if (nl80211_send_chandef(msg, chandef))
11435 goto nla_put_failure;
11436
9c90a9f6 11437 genlmsg_end(msg, hdr);
04f39047 11438
68eb5503 11439 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11440 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11441 return;
11442
11443 nla_put_failure:
11444 genlmsg_cancel(msg, hdr);
11445 nlmsg_free(msg);
11446}
11447
947add36
JB		 11448void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11449 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11450{
947add36
JB		 11451 struct wireless_dev *wdev = dev->ieee80211_ptr;
11452 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11453 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11454 struct sk_buff *msg;
11455 struct nlattr *pinfoattr;
11456 void *hdr;
11457
947add36
JB		 11458 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11459
58050fce 11460 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11461 if (!msg)
11462 return;
11463
11464 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11465 if (!hdr) {
11466 nlmsg_free(msg);
11467 return;
11468 }
11469
9360ffd1 11470 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11471 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11472 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11473 goto nla_put_failure;
c063dbf5
JB		 11474
11475 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11476 if (!pinfoattr)
11477 goto nla_put_failure;
11478
9360ffd1
DM		 11479 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11480 goto nla_put_failure;
c063dbf5
JB		 11481
11482 nla_nest_end(msg, pinfoattr);
11483
3b7b72ee 11484 genlmsg_end(msg, hdr);
c063dbf5 11485
68eb5503 11486 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11487 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11488 return;
11489
11490 nla_put_failure:
11491 genlmsg_cancel(msg, hdr);
11492 nlmsg_free(msg);
11493}
947add36 11494EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11495
7f6cf311
JB		 11496void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11497 u64 cookie, bool acked, gfp_t gfp)
11498{
11499 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11500 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11501 struct sk_buff *msg;
11502 void *hdr;
7f6cf311 11503
4ee3e063
BL		 11504 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11505
58050fce 11506 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11507
7f6cf311
JB		 11508 if (!msg)
11509 return;
11510
11511 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11512 if (!hdr) {
11513 nlmsg_free(msg);
11514 return;
11515 }
11516
9360ffd1
DM		 11517 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11518 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11519 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11520 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11521 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11522 goto nla_put_failure;
7f6cf311 11523
9c90a9f6 11524 genlmsg_end(msg, hdr);
7f6cf311 11525
68eb5503 11526 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11527 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11528 return;
11529
11530 nla_put_failure:
11531 genlmsg_cancel(msg, hdr);
11532 nlmsg_free(msg);
11533}
11534EXPORT_SYMBOL(cfg80211_probe_status);
11535
5e760230
JB		 11536void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11537 const u8 *frame, size_t len,
37c73b5f 11538 int freq, int sig_dbm)
5e760230 11539{
f26cbf40 11540 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11541 struct sk_buff *msg;
11542 void *hdr;
37c73b5f 11543 struct cfg80211_beacon_registration *reg;
5e760230 11544
4ee3e063
BL		 11545 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11546
37c73b5f
BG		 11547 spin_lock_bh(&rdev->beacon_registrations_lock);
11548 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11549 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11550 if (!msg) {
11551 spin_unlock_bh(&rdev->beacon_registrations_lock);
11552 return;
11553 }
5e760230 11554
37c73b5f
BG		 11555 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11556 if (!hdr)
11557 goto nla_put_failure;
5e760230 11558
37c73b5f
BG		 11559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11560 (freq &&
11561 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11562 (sig_dbm &&
11563 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11564 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11565 goto nla_put_failure;
5e760230 11566
37c73b5f 11567 genlmsg_end(msg, hdr);
5e760230 11568
37c73b5f
BG		 11569 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11570 }
11571 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11572 return;
11573
11574 nla_put_failure:
37c73b5f
BG		 11575 spin_unlock_bh(&rdev->beacon_registrations_lock);
11576 if (hdr)
11577 genlmsg_cancel(msg, hdr);
5e760230
JB		 11578 nlmsg_free(msg);
11579}
11580EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11581
cd8f7cb4
JB		 11582#ifdef CONFIG_PM
11583void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11584 struct cfg80211_wowlan_wakeup *wakeup,
11585 gfp_t gfp)
11586{
f26cbf40 11587 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11588 struct sk_buff *msg;
11589 void *hdr;
9c90a9f6 11590 int size = 200;
cd8f7cb4
JB		 11591
11592 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11593
11594 if (wakeup)
11595 size += wakeup->packet_present_len;
11596
11597 msg = nlmsg_new(size, gfp);
11598 if (!msg)
11599 return;
11600
11601 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11602 if (!hdr)
11603 goto free_msg;
11604
11605 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11606 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11607 goto free_msg;
11608
11609 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11610 wdev->netdev->ifindex))
11611 goto free_msg;
11612
11613 if (wakeup) {
11614 struct nlattr *reasons;
11615
11616 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11617 if (!reasons)
11618 goto free_msg;
cd8f7cb4
JB		 11619
11620 if (wakeup->disconnect &&
11621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11622 goto free_msg;
11623 if (wakeup->magic_pkt &&
11624 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11625 goto free_msg;
11626 if (wakeup->gtk_rekey_failure &&
11627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11628 goto free_msg;
11629 if (wakeup->eap_identity_req &&
11630 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11631 goto free_msg;
11632 if (wakeup->four_way_handshake &&
11633 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11634 goto free_msg;
11635 if (wakeup->rfkill_release &&
11636 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11637 goto free_msg;
11638
11639 if (wakeup->pattern_idx >= 0 &&
11640 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11641 wakeup->pattern_idx))
11642 goto free_msg;
11643
ae917c9f
JB		 11644 if (wakeup->tcp_match &&
11645 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11646 goto free_msg;
2a0e047e 11647
ae917c9f
JB		 11648 if (wakeup->tcp_connlost &&
11649 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11650 goto free_msg;
2a0e047e 11651
ae917c9f
JB		 11652 if (wakeup->tcp_nomoretokens &&
11653 nla_put_flag(msg,
11654 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11655 goto free_msg;
2a0e047e 11656
cd8f7cb4
JB		 11657 if (wakeup->packet) {
11658 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11659 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11660
11661 if (!wakeup->packet_80211) {
11662 pkt_attr =
11663 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11664 len_attr =
11665 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11666 }
11667
11668 if (wakeup->packet_len &&
11669 nla_put_u32(msg, len_attr, wakeup->packet_len))
11670 goto free_msg;
11671
11672 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11673 wakeup->packet))
11674 goto free_msg;
11675 }
11676
11677 nla_nest_end(msg, reasons);
11678 }
11679
9c90a9f6 11680 genlmsg_end(msg, hdr);
cd8f7cb4 11681
68eb5503 11682 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11683 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11684 return;
11685
11686 free_msg:
11687 nlmsg_free(msg);
11688}
11689EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11690#endif
11691
3475b094
JM		 11692void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11693 enum nl80211_tdls_operation oper,
11694 u16 reason_code, gfp_t gfp)
11695{
11696 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11697 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11698 struct sk_buff *msg;
11699 void *hdr;
3475b094
JM		 11700
11701 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11702 reason_code);
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_TDLS_OPER);
11709 if (!hdr) {
11710 nlmsg_free(msg);
11711 return;
11712 }
11713
11714 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11715 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11716 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11717 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11718 (reason_code > 0 &&
11719 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11720 goto nla_put_failure;
11721
9c90a9f6 11722 genlmsg_end(msg, hdr);
3475b094 11723
68eb5503 11724 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11725 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11726 return;
11727
11728 nla_put_failure:
11729 genlmsg_cancel(msg, hdr);
11730 nlmsg_free(msg);
11731}
11732EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11733
026331c4
JM		 11734static int nl80211_netlink_notify(struct notifier_block * nb,
11735 unsigned long state,
11736 void *_notify)
11737{
11738 struct netlink_notify *notify = _notify;
11739 struct cfg80211_registered_device *rdev;
11740 struct wireless_dev *wdev;
37c73b5f 11741 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11742
11743 if (state != NETLINK_URELEASE)
11744 return NOTIFY_DONE;
11745
11746 rcu_read_lock();
11747
5e760230 11748 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11749 bool schedule_destroy_work = false;
11750
11751 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11752 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11753
78f22b6a
JB		 11754 if (wdev->owner_nlportid == notify->portid)
11755 schedule_destroy_work = true;
11756 }
11757
37c73b5f
BG		 11758 spin_lock_bh(&rdev->beacon_registrations_lock);
11759 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11760 list) {
11761 if (reg->nlportid == notify->portid) {
11762 list_del(&reg->list);
11763 kfree(reg);
11764 break;
11765 }
11766 }
11767 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11768
11769 if (schedule_destroy_work) {
11770 struct cfg80211_iface_destroy *destroy;
11771
11772 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11773 if (destroy) {
11774 destroy->nlportid = notify->portid;
11775 spin_lock(&rdev->destroy_list_lock);
11776 list_add(&destroy->list, &rdev->destroy_list);
11777 spin_unlock(&rdev->destroy_list_lock);
11778 schedule_work(&rdev->destroy_work);
11779 }
11780 }
5e760230 11781 }
026331c4
JM		 11782
11783 rcu_read_unlock();
11784
6784c7db 11785 return NOTIFY_OK;
026331c4
JM		 11786}
11787
11788static struct notifier_block nl80211_netlink_notifier = {
11789 .notifier_call = nl80211_netlink_notify,
11790};
11791
355199e0
JM		 11792void cfg80211_ft_event(struct net_device *netdev,
11793 struct cfg80211_ft_event_params *ft_event)
11794{
11795 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11796 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11797 struct sk_buff *msg;
11798 void *hdr;
355199e0
JM		 11799
11800 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11801
11802 if (!ft_event->target_ap)
11803 return;
11804
11805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11806 if (!msg)
11807 return;
11808
11809 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11810 if (!hdr)
11811 goto out;
355199e0 11812
ae917c9f
JB		 11813 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11814 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11815 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11816 goto out;
355199e0 11817
ae917c9f
JB		 11818 if (ft_event->ies &&
11819 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11820 goto out;
11821 if (ft_event->ric_ies &&
11822 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11823 ft_event->ric_ies))
11824 goto out;
355199e0 11825
9c90a9f6 11826 genlmsg_end(msg, hdr);
355199e0 11827
68eb5503 11828 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11829 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11830 return;
11831 out:
11832 nlmsg_free(msg);
355199e0
JM		 11833}
11834EXPORT_SYMBOL(cfg80211_ft_event);
11835
5de17984
AS		 11836void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11837{
11838 struct cfg80211_registered_device *rdev;
11839 struct sk_buff *msg;
11840 void *hdr;
11841 u32 nlportid;
11842
f26cbf40 11843 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11844 if (!rdev->crit_proto_nlportid)
11845 return;
11846
11847 nlportid = rdev->crit_proto_nlportid;
11848 rdev->crit_proto_nlportid = 0;
11849
11850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11851 if (!msg)
11852 return;
11853
11854 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11855 if (!hdr)
11856 goto nla_put_failure;
11857
11858 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11859 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11860 goto nla_put_failure;
11861
11862 genlmsg_end(msg, hdr);
11863
11864 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11865 return;
11866
11867 nla_put_failure:
11868 if (hdr)
11869 genlmsg_cancel(msg, hdr);
11870 nlmsg_free(msg);
11871
11872}
11873EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11874
348baf0e
JB		 11875void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11876{
11877 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11878 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11879 struct sk_buff *msg;
11880 void *hdr;
11881
11882 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11883 if (!msg)
11884 return;
11885
11886 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11887 if (!hdr)
11888 goto out;
11889
11890 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11891 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11892 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11893 goto out;
11894
11895 genlmsg_end(msg, hdr);
11896
11897 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11898 NL80211_MCGRP_MLME, GFP_KERNEL);
11899 return;
11900 out:
11901 nlmsg_free(msg);
11902}
11903
55682965
JB		 11904/* initialisation/exit functions */
11905
11906int nl80211_init(void)
11907{
0d63cbb5 11908 int err;
55682965 11909
2a94fe48
JB		 11910 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11911 nl80211_mcgrps);
55682965
JB		 11912 if (err)
11913 return err;
11914
026331c4
JM		 11915 err = netlink_register_notifier(&nl80211_netlink_notifier);
11916 if (err)
11917 goto err_out;
11918
55682965
JB		 11919 return 0;
11920 err_out:
11921 genl_unregister_family(&nl80211_fam);
11922 return err;
11923}
11924
11925void nl80211_exit(void)
11926{
026331c4 11927 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11928 genl_unregister_family(&nl80211_fam);
11929}
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