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cfg80211: add extensible feature flag attribute
[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 */
8cd4d456 212static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 391 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 398 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 399 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
55682965
JB		 400};
401
e31b8213 402/* policy for the key attributes */
b54452b0 403static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 404 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 405 [NL80211_KEY_IDX] = { .type = NLA_U8 },
406 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 407 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 408 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
409 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 410 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 411 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
412};
413
414/* policy for the key default flags */
415static const struct nla_policy
416nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
417 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
418 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 419};
420
ff1b6e69
JB		 421/* policy for WoWLAN attributes */
422static const struct nla_policy
423nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
424 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
426 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 428 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 432 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 433 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 434};
435
436static const struct nla_policy
437nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
438 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
440 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
441 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
442 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
443 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
444 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
445 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
446 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
448 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
449 },
450 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
452 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 453};
454
be29b99a
AK		 455/* policy for coalesce rule attributes */
456static const struct nla_policy
457nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
458 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
459 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
460 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
461};
462
e5497d76
JB		 463/* policy for GTK rekey offload attributes */
464static const struct nla_policy
465nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
466 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
467 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
468 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
469};
470
a1f1c21c
LC		 471static const struct nla_policy
472nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 473 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 474 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 475 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 476};
477
97990a06
JB		 478static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
479 struct netlink_callback *cb,
480 struct cfg80211_registered_device **rdev,
481 struct wireless_dev **wdev)
a043897a 482{
97990a06 483 int err;
a043897a 484
97990a06 485 rtnl_lock();
a043897a 486
97990a06
JB		 487 if (!cb->args[0]) {
488 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
489 nl80211_fam.attrbuf, nl80211_fam.maxattr,
490 nl80211_policy);
491 if (err)
492 goto out_unlock;
67748893 493
97990a06
JB		 494 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
495 nl80211_fam.attrbuf);
496 if (IS_ERR(*wdev)) {
497 err = PTR_ERR(*wdev);
498 goto out_unlock;
499 }
f26cbf40 500 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 501 /* 0 is the first index - add 1 to parse only once */
502 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 503 cb->args[1] = (*wdev)->identifier;
504 } else {
c319d50b
JB		 505 /* subtract the 1 again here */
506 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 507 struct wireless_dev *tmp;
67748893 508
97990a06
JB		 509 if (!wiphy) {
510 err = -ENODEV;
511 goto out_unlock;
512 }
f26cbf40 513 *rdev = wiphy_to_rdev(wiphy);
97990a06 514 *wdev = NULL;
67748893 515
97990a06
JB		 516 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
517 if (tmp->identifier == cb->args[1]) {
518 *wdev = tmp;
519 break;
520 }
521 }
67748893 522
97990a06
JB		 523 if (!*wdev) {
524 err = -ENODEV;
525 goto out_unlock;
526 }
67748893
JB		 527 }
528
67748893 529 return 0;
97990a06 530 out_unlock:
67748893
JB		 531 rtnl_unlock();
532 return err;
533}
534
97990a06 535static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 536{
67748893
JB		 537 rtnl_unlock();
538}
539
f4a11bb0
JB		 540/* IE validation */
541static bool is_valid_ie_attr(const struct nlattr *attr)
542{
543 const u8 *pos;
544 int len;
545
546 if (!attr)
547 return true;
548
549 pos = nla_data(attr);
550 len = nla_len(attr);
551
552 while (len) {
553 u8 elemlen;
554
555 if (len < 2)
556 return false;
557 len -= 2;
558
559 elemlen = pos[1];
560 if (elemlen > len)
561 return false;
562
563 len -= elemlen;
564 pos += 2 + elemlen;
565 }
566
567 return true;
568}
569
55682965 570/* message building helper */
15e47304 571static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 572 int flags, u8 cmd)
573{
574 /* since there is no private header just add the generic one */
15e47304 575 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 576}
577
5dab3b8a 578static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 579 struct ieee80211_channel *chan,
580 bool large)
5dab3b8a 581{
ea077c1c
RL		 582 /* Some channels must be completely excluded from the
583 * list to protect old user-space tools from breaking
584 */
585 if (!large && chan->flags &
586 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
587 return 0;
588
9360ffd1
DM		 589 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
590 chan->center_freq))
591 goto nla_put_failure;
5dab3b8a 592
9360ffd1
DM		 593 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
594 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
595 goto nla_put_failure;
8fe02e16
LR		 596 if (chan->flags & IEEE80211_CHAN_NO_IR) {
597 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
598 goto nla_put_failure;
599 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
600 goto nla_put_failure;
601 }
cdc89b97
JB		 602 if (chan->flags & IEEE80211_CHAN_RADAR) {
603 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
604 goto nla_put_failure;
605 if (large) {
606 u32 time;
607
608 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
609
610 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
611 chan->dfs_state))
612 goto nla_put_failure;
613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
614 time))
615 goto nla_put_failure;
089027e5
JD		 616 if (nla_put_u32(msg,
617 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
618 chan->dfs_cac_ms))
619 goto nla_put_failure;
cdc89b97
JB		 620 }
621 }
5dab3b8a 622
fe1abafd
JB		 623 if (large) {
624 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
635 goto nla_put_failure;
570dbde1
DS		 636 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
638 goto nla_put_failure;
639 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
641 goto nla_put_failure;
ea077c1c
RL		 642 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
644 goto nla_put_failure;
645 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
646 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
647 goto nla_put_failure;
fe1abafd
JB		 648 }
649
9360ffd1
DM		 650 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
651 DBM_TO_MBM(chan->max_power)))
652 goto nla_put_failure;
5dab3b8a
LR		 653
654 return 0;
655
656 nla_put_failure:
657 return -ENOBUFS;
658}
659
55682965
JB		 660/* netlink command implementations */
661
b9454e83
JB		 662struct key_parse {
663 struct key_params p;
664 int idx;
e31b8213 665 int type;
b9454e83 666 bool def, defmgmt;
dbd2fd65 667 bool def_uni, def_multi;
b9454e83
JB		 668};
669
670static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
671{
672 struct nlattr *tb[NL80211_KEY_MAX + 1];
673 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
674 nl80211_key_policy);
675 if (err)
676 return err;
677
678 k->def = !!tb[NL80211_KEY_DEFAULT];
679 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
680
dbd2fd65
JB		 681 if (k->def) {
682 k->def_uni = true;
683 k->def_multi = true;
684 }
685 if (k->defmgmt)
686 k->def_multi = true;
687
b9454e83
JB		 688 if (tb[NL80211_KEY_IDX])
689 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
690
691 if (tb[NL80211_KEY_DATA]) {
692 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
693 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
694 }
695
696 if (tb[NL80211_KEY_SEQ]) {
697 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
698 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
699 }
700
701 if (tb[NL80211_KEY_CIPHER])
702 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
703
e31b8213
JB		 704 if (tb[NL80211_KEY_TYPE]) {
705 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
706 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
707 return -EINVAL;
708 }
709
dbd2fd65
JB		 710 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
711 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 712 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
713 tb[NL80211_KEY_DEFAULT_TYPES],
714 nl80211_key_default_policy);
dbd2fd65
JB		 715 if (err)
716 return err;
717
718 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
719 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
720 }
721
b9454e83
JB		 722 return 0;
723}
724
725static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
726{
727 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
728 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
729 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
730 }
731
732 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
733 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
734 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
735 }
736
737 if (info->attrs[NL80211_ATTR_KEY_IDX])
738 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
739
740 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
741 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
742
743 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
744 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
745
dbd2fd65
JB		 746 if (k->def) {
747 k->def_uni = true;
748 k->def_multi = true;
749 }
750 if (k->defmgmt)
751 k->def_multi = true;
752
e31b8213
JB		 753 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
754 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
755 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
756 return -EINVAL;
757 }
758
dbd2fd65
JB		 759 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
760 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
761 int err = nla_parse_nested(
762 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
763 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
764 nl80211_key_default_policy);
765 if (err)
766 return err;
767
768 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
769 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
770 }
771
b9454e83
JB		 772 return 0;
773}
774
775static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
776{
777 int err;
778
779 memset(k, 0, sizeof(*k));
780 k->idx = -1;
e31b8213 781 k->type = -1;
b9454e83
JB		 782
783 if (info->attrs[NL80211_ATTR_KEY])
784 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
785 else
786 err = nl80211_parse_key_old(info, k);
787
788 if (err)
789 return err;
790
791 if (k->def && k->defmgmt)
792 return -EINVAL;
793
dbd2fd65
JB		 794 if (k->defmgmt) {
795 if (k->def_uni || !k->def_multi)
796 return -EINVAL;
797 }
798
b9454e83
JB		 799 if (k->idx != -1) {
800 if (k->defmgmt) {
801 if (k->idx < 4 || k->idx > 5)
802 return -EINVAL;
803 } else if (k->def) {
804 if (k->idx < 0 || k->idx > 3)
805 return -EINVAL;
806 } else {
807 if (k->idx < 0 || k->idx > 5)
808 return -EINVAL;
809 }
810 }
811
812 return 0;
813}
814
fffd0934
JB		 815static struct cfg80211_cached_keys *
816nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 817 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 818{
819 struct key_parse parse;
820 struct nlattr *key;
821 struct cfg80211_cached_keys *result;
822 int rem, err, def = 0;
823
824 result = kzalloc(sizeof(*result), GFP_KERNEL);
825 if (!result)
826 return ERR_PTR(-ENOMEM);
827
828 result->def = -1;
829 result->defmgmt = -1;
830
831 nla_for_each_nested(key, keys, rem) {
832 memset(&parse, 0, sizeof(parse));
833 parse.idx = -1;
834
835 err = nl80211_parse_key_new(key, &parse);
836 if (err)
837 goto error;
838 err = -EINVAL;
839 if (!parse.p.key)
840 goto error;
841 if (parse.idx < 0 || parse.idx > 4)
842 goto error;
843 if (parse.def) {
844 if (def)
845 goto error;
846 def = 1;
847 result->def = parse.idx;
dbd2fd65
JB		 848 if (!parse.def_uni || !parse.def_multi)
849 goto error;
fffd0934
JB		 850 } else if (parse.defmgmt)
851 goto error;
852 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 853 parse.idx, false, NULL);
fffd0934
JB		 854 if (err)
855 goto error;
856 result->params[parse.idx].cipher = parse.p.cipher;
857 result->params[parse.idx].key_len = parse.p.key_len;
858 result->params[parse.idx].key = result->data[parse.idx];
859 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 860
861 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
862 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
863 if (no_ht)
864 *no_ht = true;
865 }
fffd0934
JB		 866 }
867
868 return result;
869 error:
870 kfree(result);
871 return ERR_PTR(err);
872}
873
874static int nl80211_key_allowed(struct wireless_dev *wdev)
875{
876 ASSERT_WDEV_LOCK(wdev);
877
fffd0934
JB		 878 switch (wdev->iftype) {
879 case NL80211_IFTYPE_AP:
880 case NL80211_IFTYPE_AP_VLAN:
074ac8df 881 case NL80211_IFTYPE_P2P_GO:
ff973af7 882 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 883 break;
884 case NL80211_IFTYPE_ADHOC:
fffd0934 885 case NL80211_IFTYPE_STATION:
074ac8df 886 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 887 if (!wdev->current_bss)
fffd0934
JB		 888 return -ENOLINK;
889 break;
de4fcbad 890 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 891 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 892 case NL80211_IFTYPE_MONITOR:
893 case NL80211_IFTYPE_P2P_DEVICE:
894 case NL80211_IFTYPE_WDS:
895 case NUM_NL80211_IFTYPES:
fffd0934
JB		 896 return -EINVAL;
897 }
898
899 return 0;
900}
901
664834de
JM		 902static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
903 struct nlattr *tb)
904{
905 struct ieee80211_channel *chan;
906
907 if (tb == NULL)
908 return NULL;
909 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
910 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
911 return NULL;
912 return chan;
913}
914
7527a782
JB		 915static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
916{
917 struct nlattr *nl_modes = nla_nest_start(msg, attr);
918 int i;
919
920 if (!nl_modes)
921 goto nla_put_failure;
922
923 i = 0;
924 while (ifmodes) {
9360ffd1
DM		 925 if ((ifmodes & 1) && nla_put_flag(msg, i))
926 goto nla_put_failure;
7527a782
JB		 927 ifmodes >>= 1;
928 i++;
929 }
930
931 nla_nest_end(msg, nl_modes);
932 return 0;
933
934nla_put_failure:
935 return -ENOBUFS;
936}
937
938static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 939 struct sk_buff *msg,
940 bool large)
7527a782
JB		 941{
942 struct nlattr *nl_combis;
943 int i, j;
944
945 nl_combis = nla_nest_start(msg,
946 NL80211_ATTR_INTERFACE_COMBINATIONS);
947 if (!nl_combis)
948 goto nla_put_failure;
949
950 for (i = 0; i < wiphy->n_iface_combinations; i++) {
951 const struct ieee80211_iface_combination *c;
952 struct nlattr *nl_combi, *nl_limits;
953
954 c = &wiphy->iface_combinations[i];
955
956 nl_combi = nla_nest_start(msg, i + 1);
957 if (!nl_combi)
958 goto nla_put_failure;
959
960 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
961 if (!nl_limits)
962 goto nla_put_failure;
963
964 for (j = 0; j < c->n_limits; j++) {
965 struct nlattr *nl_limit;
966
967 nl_limit = nla_nest_start(msg, j + 1);
968 if (!nl_limit)
969 goto nla_put_failure;
9360ffd1
DM		 970 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
971 c->limits[j].max))
972 goto nla_put_failure;
7527a782
JB		 973 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
974 c->limits[j].types))
975 goto nla_put_failure;
976 nla_nest_end(msg, nl_limit);
977 }
978
979 nla_nest_end(msg, nl_limits);
980
9360ffd1
DM		 981 if (c->beacon_int_infra_match &&
982 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
983 goto nla_put_failure;
984 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
985 c->num_different_channels) ||
986 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
987 c->max_interfaces))
988 goto nla_put_failure;
cdc89b97 989 if (large &&
8c48b50a
FF		 990 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
991 c->radar_detect_widths) ||
992 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
993 c->radar_detect_regions)))
cdc89b97 994 goto nla_put_failure;
7527a782
JB		 995
996 nla_nest_end(msg, nl_combi);
997 }
998
999 nla_nest_end(msg, nl_combis);
1000
1001 return 0;
1002nla_put_failure:
1003 return -ENOBUFS;
1004}
1005
3713b4e3 1006#ifdef CONFIG_PM
b56cf720
JB		 1007static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1008 struct sk_buff *msg)
1009{
964dc9e2 1010 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1011 struct nlattr *nl_tcp;
1012
1013 if (!tcp)
1014 return 0;
1015
1016 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1017 if (!nl_tcp)
1018 return -ENOBUFS;
1019
1020 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1021 tcp->data_payload_max))
1022 return -ENOBUFS;
1023
1024 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1025 tcp->data_payload_max))
1026 return -ENOBUFS;
1027
1028 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1029 return -ENOBUFS;
1030
1031 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1032 sizeof(*tcp->tok), tcp->tok))
1033 return -ENOBUFS;
1034
1035 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1036 tcp->data_interval_max))
1037 return -ENOBUFS;
1038
1039 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1040 tcp->wake_payload_max))
1041 return -ENOBUFS;
1042
1043 nla_nest_end(msg, nl_tcp);
1044 return 0;
1045}
1046
3713b4e3 1047static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1048 struct cfg80211_registered_device *rdev,
b56cf720 1049 bool large)
55682965 1050{
3713b4e3 1051 struct nlattr *nl_wowlan;
55682965 1052
1b8ec87a 1053 if (!rdev->wiphy.wowlan)
3713b4e3 1054 return 0;
55682965 1055
3713b4e3
JB		 1056 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1057 if (!nl_wowlan)
1058 return -ENOBUFS;
9360ffd1 1059
1b8ec87a 1060 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1062 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1064 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1068 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1070 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1076 return -ENOBUFS;
9360ffd1 1077
1b8ec87a 1078 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1079 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1080 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1081 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1082 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1083 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1084 };
9360ffd1 1085
3713b4e3
JB		 1086 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1087 sizeof(pat), &pat))
1088 return -ENOBUFS;
1089 }
9360ffd1 1090
1b8ec87a 1091 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1092 return -ENOBUFS;
1093
8cd4d456
LC		 1094 /* TODO: send wowlan net detect */
1095
3713b4e3 1096 nla_nest_end(msg, nl_wowlan);
9360ffd1 1097
3713b4e3
JB		 1098 return 0;
1099}
1100#endif
9360ffd1 1101
be29b99a 1102static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1103 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1104{
1105 struct nl80211_coalesce_rule_support rule;
1106
1b8ec87a 1107 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1108 return 0;
1109
1b8ec87a
ZG		 1110 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1111 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1112 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1113 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1114 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1115 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1116
1117 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1118 return -ENOBUFS;
1119
1120 return 0;
1121}
1122
3713b4e3
JB		 1123static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1124 struct ieee80211_supported_band *sband)
1125{
1126 struct nlattr *nl_rates, *nl_rate;
1127 struct ieee80211_rate *rate;
1128 int i;
87bbbe22 1129
3713b4e3
JB		 1130 /* add HT info */
1131 if (sband->ht_cap.ht_supported &&
1132 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1133 sizeof(sband->ht_cap.mcs),
1134 &sband->ht_cap.mcs) ||
1135 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1136 sband->ht_cap.cap) ||
1137 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1138 sband->ht_cap.ampdu_factor) ||
1139 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1140 sband->ht_cap.ampdu_density)))
1141 return -ENOBUFS;
afe0cbf8 1142
3713b4e3
JB		 1143 /* add VHT info */
1144 if (sband->vht_cap.vht_supported &&
1145 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1146 sizeof(sband->vht_cap.vht_mcs),
1147 &sband->vht_cap.vht_mcs) ||
1148 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1149 sband->vht_cap.cap)))
1150 return -ENOBUFS;
f59ac048 1151
3713b4e3
JB		 1152 /* add bitrates */
1153 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1154 if (!nl_rates)
1155 return -ENOBUFS;
ee688b00 1156
3713b4e3
JB		 1157 for (i = 0; i < sband->n_bitrates; i++) {
1158 nl_rate = nla_nest_start(msg, i);
1159 if (!nl_rate)
1160 return -ENOBUFS;
ee688b00 1161
3713b4e3
JB		 1162 rate = &sband->bitrates[i];
1163 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1164 rate->bitrate))
1165 return -ENOBUFS;
1166 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1167 nla_put_flag(msg,
1168 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1169 return -ENOBUFS;
ee688b00 1170
3713b4e3
JB		 1171 nla_nest_end(msg, nl_rate);
1172 }
d51626df 1173
3713b4e3 1174 nla_nest_end(msg, nl_rates);
bf0c111e 1175
3713b4e3
JB		 1176 return 0;
1177}
ee688b00 1178
3713b4e3
JB		 1179static int
1180nl80211_send_mgmt_stypes(struct sk_buff *msg,
1181 const struct ieee80211_txrx_stypes *mgmt_stypes)
1182{
1183 u16 stypes;
1184 struct nlattr *nl_ftypes, *nl_ifs;
1185 enum nl80211_iftype ift;
1186 int i;
ee688b00 1187
3713b4e3
JB		 1188 if (!mgmt_stypes)
1189 return 0;
5dab3b8a 1190
3713b4e3
JB		 1191 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1192 if (!nl_ifs)
1193 return -ENOBUFS;
e2f367f2 1194
3713b4e3
JB		 1195 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1196 nl_ftypes = nla_nest_start(msg, ift);
1197 if (!nl_ftypes)
1198 return -ENOBUFS;
1199 i = 0;
1200 stypes = mgmt_stypes[ift].tx;
1201 while (stypes) {
1202 if ((stypes & 1) &&
1203 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1204 (i << 4) | IEEE80211_FTYPE_MGMT))
1205 return -ENOBUFS;
1206 stypes >>= 1;
1207 i++;
ee688b00 1208 }
3713b4e3
JB		 1209 nla_nest_end(msg, nl_ftypes);
1210 }
ee688b00 1211
3713b4e3 1212 nla_nest_end(msg, nl_ifs);
ee688b00 1213
3713b4e3
JB		 1214 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1215 if (!nl_ifs)
1216 return -ENOBUFS;
ee688b00 1217
3713b4e3
JB		 1218 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1219 nl_ftypes = nla_nest_start(msg, ift);
1220 if (!nl_ftypes)
1221 return -ENOBUFS;
1222 i = 0;
1223 stypes = mgmt_stypes[ift].rx;
1224 while (stypes) {
1225 if ((stypes & 1) &&
1226 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1227 (i << 4) | IEEE80211_FTYPE_MGMT))
1228 return -ENOBUFS;
1229 stypes >>= 1;
1230 i++;
1231 }
1232 nla_nest_end(msg, nl_ftypes);
1233 }
1234 nla_nest_end(msg, nl_ifs);
ee688b00 1235
3713b4e3
JB		 1236 return 0;
1237}
ee688b00 1238
86e8cf98
JB		 1239struct nl80211_dump_wiphy_state {
1240 s64 filter_wiphy;
1241 long start;
1242 long split_start, band_start, chan_start;
1243 bool split;
1244};
1245
1b8ec87a 1246static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1247 enum nl80211_commands cmd,
3713b4e3 1248 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1249 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1250{
1251 void *hdr;
1252 struct nlattr *nl_bands, *nl_band;
1253 struct nlattr *nl_freqs, *nl_freq;
1254 struct nlattr *nl_cmds;
1255 enum ieee80211_band band;
1256 struct ieee80211_channel *chan;
1257 int i;
1258 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1259 rdev->wiphy.mgmt_stypes;
fe1abafd 1260 u32 features;
ee688b00 1261
3bb20556 1262 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1263 if (!hdr)
1264 return -ENOBUFS;
ee688b00 1265
86e8cf98
JB		 1266 if (WARN_ON(!state))
1267 return -EINVAL;
ee688b00 1268
1b8ec87a 1269 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1270 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1271 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1272 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1273 cfg80211_rdev_list_generation))
8fdc621d
JB		 1274 goto nla_put_failure;
1275
3bb20556
JB		 1276 if (cmd != NL80211_CMD_NEW_WIPHY)
1277 goto finish;
1278
86e8cf98 1279 switch (state->split_start) {
3713b4e3
JB		 1280 case 0:
1281 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1282 rdev->wiphy.retry_short) ||
3713b4e3 1283 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1284 rdev->wiphy.retry_long) ||
3713b4e3 1285 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1286 rdev->wiphy.frag_threshold) ||
3713b4e3 1287 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1288 rdev->wiphy.rts_threshold) ||
3713b4e3 1289 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1290 rdev->wiphy.coverage_class) ||
3713b4e3 1291 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1292 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1293 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1294 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1295 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1296 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1297 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1298 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1299 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1300 rdev->wiphy.max_match_sets))
9360ffd1 1301 goto nla_put_failure;
3713b4e3 1302
1b8ec87a 1303 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1304 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1305 goto nla_put_failure;
1b8ec87a 1306 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1307 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1308 goto nla_put_failure;
1b8ec87a 1309 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1310 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1311 goto nla_put_failure;
1b8ec87a 1312 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1313 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1314 goto nla_put_failure;
1b8ec87a 1315 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1316 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1317 goto nla_put_failure;
1b8ec87a 1318 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1319 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1320 goto nla_put_failure;
86e8cf98
JB		 1321 state->split_start++;
1322 if (state->split)
3713b4e3
JB		 1323 break;
1324 case 1:
1325 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1326 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1327 rdev->wiphy.cipher_suites))
3713b4e3 1328 goto nla_put_failure;
4745fc09 1329
3713b4e3 1330 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1331 rdev->wiphy.max_num_pmkids))
3713b4e3 1332 goto nla_put_failure;
b23aa676 1333
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1335 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1336 goto nla_put_failure;
b23aa676 1337
3713b4e3 1338 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1339 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1340 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1341 rdev->wiphy.available_antennas_rx))
9360ffd1 1342 goto nla_put_failure;
b23aa676 1343
1b8ec87a 1344 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1345 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1346 rdev->wiphy.probe_resp_offload))
3713b4e3 1347 goto nla_put_failure;
8fdc621d 1348
1b8ec87a
ZG		 1349 if ((rdev->wiphy.available_antennas_tx ||
1350 rdev->wiphy.available_antennas_rx) &&
1351 rdev->ops->get_antenna) {
3713b4e3
JB		 1352 u32 tx_ant = 0, rx_ant = 0;
1353 int res;
1b8ec87a 1354 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1355 if (!res) {
1356 if (nla_put_u32(msg,
1357 NL80211_ATTR_WIPHY_ANTENNA_TX,
1358 tx_ant) ||
1359 nla_put_u32(msg,
1360 NL80211_ATTR_WIPHY_ANTENNA_RX,
1361 rx_ant))
1362 goto nla_put_failure;
1363 }
1364 }
a293911d 1365
86e8cf98
JB		 1366 state->split_start++;
1367 if (state->split)
3713b4e3
JB		 1368 break;
1369 case 2:
1370 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1371 rdev->wiphy.interface_modes))
3713b4e3 1372 goto nla_put_failure;
86e8cf98
JB		 1373 state->split_start++;
1374 if (state->split)
3713b4e3
JB		 1375 break;
1376 case 3:
1377 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1378 if (!nl_bands)
1379 goto nla_put_failure;
f7ca38df 1380
86e8cf98
JB		 1381 for (band = state->band_start;
1382 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1383 struct ieee80211_supported_band *sband;
2e161f78 1384
1b8ec87a 1385 sband = rdev->wiphy.bands[band];
2e161f78 1386
3713b4e3
JB		 1387 if (!sband)
1388 continue;
1389
1390 nl_band = nla_nest_start(msg, band);
1391 if (!nl_band)
2e161f78 1392 goto nla_put_failure;
3713b4e3 1393
86e8cf98 1394 switch (state->chan_start) {
3713b4e3
JB		 1395 case 0:
1396 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1397 goto nla_put_failure;
86e8cf98
JB		 1398 state->chan_start++;
1399 if (state->split)
3713b4e3
JB		 1400 break;
1401 default:
1402 /* add frequencies */
1403 nl_freqs = nla_nest_start(
1404 msg, NL80211_BAND_ATTR_FREQS);
1405 if (!nl_freqs)
1406 goto nla_put_failure;
1407
86e8cf98 1408 for (i = state->chan_start - 1;
3713b4e3
JB		 1409 i < sband->n_channels;
1410 i++) {
1411 nl_freq = nla_nest_start(msg, i);
1412 if (!nl_freq)
1413 goto nla_put_failure;
1414
1415 chan = &sband->channels[i];
1416
86e8cf98
JB		 1417 if (nl80211_msg_put_channel(
1418 msg, chan,
1419 state->split))
3713b4e3
JB		 1420 goto nla_put_failure;
1421
1422 nla_nest_end(msg, nl_freq);
86e8cf98 1423 if (state->split)
3713b4e3
JB		 1424 break;
1425 }
1426 if (i < sband->n_channels)
86e8cf98 1427 state->chan_start = i + 2;
3713b4e3 1428 else
86e8cf98 1429 state->chan_start = 0;
3713b4e3
JB		 1430 nla_nest_end(msg, nl_freqs);
1431 }
1432
1433 nla_nest_end(msg, nl_band);
1434
86e8cf98 1435 if (state->split) {
3713b4e3 1436 /* start again here */
86e8cf98 1437 if (state->chan_start)
3713b4e3
JB		 1438 band--;
1439 break;
2e161f78 1440 }
2e161f78 1441 }
3713b4e3 1442 nla_nest_end(msg, nl_bands);
2e161f78 1443
3713b4e3 1444 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1445 state->band_start = band + 1;
3713b4e3 1446 else
86e8cf98 1447 state->band_start = 0;
74b70a4e 1448
3713b4e3 1449 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1450 if (state->band_start == 0 && state->chan_start == 0)
1451 state->split_start++;
1452 if (state->split)
3713b4e3
JB		 1453 break;
1454 case 4:
1455 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1456 if (!nl_cmds)
2e161f78
JB		 1457 goto nla_put_failure;
1458
3713b4e3
JB		 1459 i = 0;
1460#define CMD(op, n) \
1461 do { \
1b8ec87a 1462 if (rdev->ops->op) { \
3713b4e3
JB		 1463 i++; \
1464 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1465 goto nla_put_failure; \
1466 } \
1467 } while (0)
1468
1469 CMD(add_virtual_intf, NEW_INTERFACE);
1470 CMD(change_virtual_intf, SET_INTERFACE);
1471 CMD(add_key, NEW_KEY);
1472 CMD(start_ap, START_AP);
1473 CMD(add_station, NEW_STATION);
1474 CMD(add_mpath, NEW_MPATH);
1475 CMD(update_mesh_config, SET_MESH_CONFIG);
1476 CMD(change_bss, SET_BSS);
1477 CMD(auth, AUTHENTICATE);
1478 CMD(assoc, ASSOCIATE);
1479 CMD(deauth, DEAUTHENTICATE);
1480 CMD(disassoc, DISASSOCIATE);
1481 CMD(join_ibss, JOIN_IBSS);
1482 CMD(join_mesh, JOIN_MESH);
1483 CMD(set_pmksa, SET_PMKSA);
1484 CMD(del_pmksa, DEL_PMKSA);
1485 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1486 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1487 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1488 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1489 CMD(mgmt_tx, FRAME);
1490 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1491 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1492 i++;
1493 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1494 goto nla_put_failure;
2e161f78 1495 }
1b8ec87a
ZG		 1496 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1497 rdev->ops->join_mesh) {
3713b4e3
JB		 1498 i++;
1499 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1500 goto nla_put_failure;
1501 }
1502 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1503 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1504 CMD(tdls_mgmt, TDLS_MGMT);
1505 CMD(tdls_oper, TDLS_OPER);
1506 }
1b8ec87a 1507 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1508 CMD(sched_scan_start, START_SCHED_SCAN);
1509 CMD(probe_client, PROBE_CLIENT);
1510 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1511 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1512 i++;
1513 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1514 goto nla_put_failure;
1515 }
1516 CMD(start_p2p_device, START_P2P_DEVICE);
1517 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1518#ifdef CONFIG_NL80211_TESTMODE
1519 CMD(testmode_cmd, TESTMODE);
1520#endif
86e8cf98 1521 if (state->split) {
5de17984
AS		 1522 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1523 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1524 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1525 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1526 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1527 if (rdev->wiphy.features &
1528 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1529 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1530 }
02df00eb 1531 /* add into the if now */
3713b4e3 1532#undef CMD
ff1b6e69 1533
1b8ec87a 1534 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1535 i++;
1536 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1537 goto nla_put_failure;
ff1b6e69
JB		 1538 }
1539
1b8ec87a 1540 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1541 i++;
1542 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1543 goto nla_put_failure;
1544 }
1545
1546 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1547 state->split_start++;
1548 if (state->split)
3713b4e3
JB		 1549 break;
1550 case 5:
1b8ec87a
ZG		 1551 if (rdev->ops->remain_on_channel &&
1552 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1553 nla_put_u32(msg,
1554 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1555 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1556 goto nla_put_failure;
1557
1b8ec87a 1558 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1559 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1560 goto nla_put_failure;
1561
1562 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1563 goto nla_put_failure;
86e8cf98
JB		 1564 state->split_start++;
1565 if (state->split)
3713b4e3
JB		 1566 break;
1567 case 6:
1568#ifdef CONFIG_PM
1b8ec87a 1569 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1570 goto nla_put_failure;
86e8cf98
JB		 1571 state->split_start++;
1572 if (state->split)
3713b4e3
JB		 1573 break;
1574#else
86e8cf98 1575 state->split_start++;
dfb89c56 1576#endif
3713b4e3
JB		 1577 case 7:
1578 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1579 rdev->wiphy.software_iftypes))
3713b4e3 1580 goto nla_put_failure;
ff1b6e69 1581
1b8ec87a 1582 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1583 state->split))
3713b4e3 1584 goto nla_put_failure;
7527a782 1585
86e8cf98
JB		 1586 state->split_start++;
1587 if (state->split)
3713b4e3
JB		 1588 break;
1589 case 8:
1b8ec87a 1590 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1591 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1592 rdev->wiphy.ap_sme_capa))
3713b4e3 1593 goto nla_put_failure;
7527a782 1594
1b8ec87a 1595 features = rdev->wiphy.features;
fe1abafd
JB		 1596 /*
1597 * We can only add the per-channel limit information if the
1598 * dump is split, otherwise it makes it too big. Therefore
1599 * only advertise it in that case.
1600 */
86e8cf98 1601 if (state->split)
fe1abafd
JB		 1602 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1603 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1604 goto nla_put_failure;
562a7480 1605
1b8ec87a 1606 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1607 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1608 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1609 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1610 goto nla_put_failure;
1f074bd8 1611
1b8ec87a
ZG		 1612 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1613 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1614 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1615 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1616 goto nla_put_failure;
7e7c8926 1617
3713b4e3
JB		 1618 /*
1619 * Any information below this point is only available to
1620 * applications that can deal with it being split. This
1621 * helps ensure that newly added capabilities don't break
1622 * older tools by overrunning their buffers.
1623 *
1624 * We still increment split_start so that in the split
1625 * case we'll continue with more data in the next round,
1626 * but break unconditionally so unsplit data stops here.
1627 */
86e8cf98 1628 state->split_start++;
3713b4e3
JB		 1629 break;
1630 case 9:
1b8ec87a 1631 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1632 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1633 rdev->wiphy.extended_capabilities_len,
1634 rdev->wiphy.extended_capabilities) ||
fe1abafd 1635 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1636 rdev->wiphy.extended_capabilities_len,
1637 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1638 goto nla_put_failure;
a50df0c4 1639
1b8ec87a 1640 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1641 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1642 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1643 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1644 goto nla_put_failure;
1645
be29b99a
AK		 1646 state->split_start++;
1647 break;
1648 case 10:
1b8ec87a 1649 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1650 goto nla_put_failure;
1651
1b8ec87a 1652 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1653 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1654 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1655 goto nla_put_failure;
b43504cf 1656
1b8ec87a 1657 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1658 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1659 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1660 goto nla_put_failure;
1661
ad7e718c
JB		 1662 state->split_start++;
1663 break;
1664 case 11:
1b8ec87a 1665 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1666 const struct nl80211_vendor_cmd_info *info;
1667 struct nlattr *nested;
1668
1669 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1670 if (!nested)
1671 goto nla_put_failure;
1672
1b8ec87a
ZG		 1673 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1674 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1675 if (nla_put(msg, i + 1, sizeof(*info), info))
1676 goto nla_put_failure;
1677 }
1678 nla_nest_end(msg, nested);
1679 }
1680
1b8ec87a 1681 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1682 const struct nl80211_vendor_cmd_info *info;
1683 struct nlattr *nested;
ad7e718c 1684
567ffc35
JB		 1685 nested = nla_nest_start(msg,
1686 NL80211_ATTR_VENDOR_EVENTS);
1687 if (!nested)
ad7e718c 1688 goto nla_put_failure;
567ffc35 1689
1b8ec87a
ZG		 1690 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1691 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1692 if (nla_put(msg, i + 1, sizeof(*info), info))
1693 goto nla_put_failure;
1694 }
1695 nla_nest_end(msg, nested);
1696 }
9a774c78
AO		 1697 state->split_start++;
1698 break;
1699 case 12:
1700 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1701 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1702 rdev->wiphy.max_num_csa_counters))
1703 goto nla_put_failure;
01e0daa4 1704
1bdd716c
AN		 1705 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1706 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1707 goto nla_put_failure;
1708
d75bb06b
GKS		 1709 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1710 sizeof(rdev->wiphy.ext_features),
1711 rdev->wiphy.ext_features))
1712 goto nla_put_failure;
1713
3713b4e3 1714 /* done */
86e8cf98 1715 state->split_start = 0;
3713b4e3
JB		 1716 break;
1717 }
3bb20556 1718 finish:
55682965
JB		 1719 return genlmsg_end(msg, hdr);
1720
1721 nla_put_failure:
bc3ed28c
TG		 1722 genlmsg_cancel(msg, hdr);
1723 return -EMSGSIZE;
55682965
JB		 1724}
1725
86e8cf98
JB		 1726static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1727 struct netlink_callback *cb,
1728 struct nl80211_dump_wiphy_state *state)
1729{
1730 struct nlattr **tb = nl80211_fam.attrbuf;
1731 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1732 tb, nl80211_fam.maxattr, nl80211_policy);
1733 /* ignore parse errors for backward compatibility */
1734 if (ret)
1735 return 0;
1736
1737 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1738 if (tb[NL80211_ATTR_WIPHY])
1739 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1740 if (tb[NL80211_ATTR_WDEV])
1741 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1742 if (tb[NL80211_ATTR_IFINDEX]) {
1743 struct net_device *netdev;
1744 struct cfg80211_registered_device *rdev;
1745 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1746
7f2b8562 1747 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1748 if (!netdev)
1749 return -ENODEV;
1750 if (netdev->ieee80211_ptr) {
f26cbf40 1751 rdev = wiphy_to_rdev(
86e8cf98
JB		 1752 netdev->ieee80211_ptr->wiphy);
1753 state->filter_wiphy = rdev->wiphy_idx;
1754 }
86e8cf98
JB		 1755 }
1756
1757 return 0;
1758}
1759
55682965
JB		 1760static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1761{
645e77de 1762 int idx = 0, ret;
86e8cf98 1763 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1764 struct cfg80211_registered_device *rdev;
3a5a423b 1765
5fe231e8 1766 rtnl_lock();
86e8cf98
JB		 1767 if (!state) {
1768 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1769 if (!state) {
1770 rtnl_unlock();
86e8cf98 1771 return -ENOMEM;
3713b4e3 1772 }
86e8cf98
JB		 1773 state->filter_wiphy = -1;
1774 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1775 if (ret) {
1776 kfree(state);
1777 rtnl_unlock();
1778 return ret;
3713b4e3 1779 }
86e8cf98 1780 cb->args[0] = (long)state;
3713b4e3
JB		 1781 }
1782
1b8ec87a
ZG		 1783 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1784 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1785 continue;
86e8cf98 1786 if (++idx <= state->start)
55682965 1787 continue;
86e8cf98 1788 if (state->filter_wiphy != -1 &&
1b8ec87a 1789 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1790 continue;
1791 /* attempt to fit multiple wiphy data chunks into the skb */
1792 do {
3bb20556
JB		 1793 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1794 skb,
3713b4e3
JB		 1795 NETLINK_CB(cb->skb).portid,
1796 cb->nlh->nlmsg_seq,
86e8cf98 1797 NLM_F_MULTI, state);
3713b4e3
JB		 1798 if (ret < 0) {
1799 /*
1800 * If sending the wiphy data didn't fit (ENOBUFS
1801 * or EMSGSIZE returned), this SKB is still
1802 * empty (so it's not too big because another
1803 * wiphy dataset is already in the skb) and
1804 * we've not tried to adjust the dump allocation
1805 * yet ... then adjust the alloc size to be
1806 * bigger, and return 1 but with the empty skb.
1807 * This results in an empty message being RX'ed
1808 * in userspace, but that is ignored.
1809 *
1810 * We can then retry with the larger buffer.
1811 */
1812 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1813 !skb->len && !state->split &&
3713b4e3
JB		 1814 cb->min_dump_alloc < 4096) {
1815 cb->min_dump_alloc = 4096;
f12cb289 1816 state->split_start = 0;
d98cae64 1817 rtnl_unlock();
3713b4e3
JB		 1818 return 1;
1819 }
1820 idx--;
1821 break;
645e77de 1822 }
86e8cf98 1823 } while (state->split_start > 0);
3713b4e3 1824 break;
55682965 1825 }
5fe231e8 1826 rtnl_unlock();
55682965 1827
86e8cf98 1828 state->start = idx;
55682965
JB		 1829
1830 return skb->len;
1831}
1832
86e8cf98
JB		 1833static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1834{
1835 kfree((void *)cb->args[0]);
1836 return 0;
1837}
1838
55682965
JB		 1839static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1840{
1841 struct sk_buff *msg;
1b8ec87a 1842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1843 struct nl80211_dump_wiphy_state state = {};
55682965 1844
645e77de 1845 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1846 if (!msg)
4c476991 1847 return -ENOMEM;
55682965 1848
3bb20556
JB		 1849 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1850 info->snd_portid, info->snd_seq, 0,
86e8cf98 1851 &state) < 0) {
4c476991
JB		 1852 nlmsg_free(msg);
1853 return -ENOBUFS;
1854 }
55682965 1855
134e6375 1856 return genlmsg_reply(msg, info);
55682965
JB		 1857}
1858
31888487
JM		 1859static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1860 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1861 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1862 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1863 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1864 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1865};
1866
1867static int parse_txq_params(struct nlattr *tb[],
1868 struct ieee80211_txq_params *txq_params)
1869{
a3304b0a 1870 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1871 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1872 !tb[NL80211_TXQ_ATTR_AIFS])
1873 return -EINVAL;
1874
a3304b0a 1875 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1876 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1877 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1878 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1879 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1880
a3304b0a
JB		 1881 if (txq_params->ac >= NL80211_NUM_ACS)
1882 return -EINVAL;
1883
31888487
JM		 1884 return 0;
1885}
1886
f444de05
JB		 1887static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1888{
1889 /*
cc1d2806
JB		 1890 * You can only set the channel explicitly for WDS interfaces,
1891 * all others have their channel managed via their respective
1892 * "establish a connection" command (connect, join, ...)
1893 *
1894 * For AP/GO and mesh mode, the channel can be set with the
1895 * channel userspace API, but is only stored and passed to the
1896 * low-level driver when the AP starts or the mesh is joined.
1897 * This is for backward compatibility, userspace can also give
1898 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1899 *
1900 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1901 * whatever else is going on, so they have their own special
1902 * operation to set the monitor channel if possible.
f444de05
JB		 1903 */
1904 return !wdev ||
1905 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1906 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1907 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1908 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1909}
1910
683b6d3b
JB		 1911static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1912 struct genl_info *info,
1913 struct cfg80211_chan_def *chandef)
1914{
dbeca2ea 1915 u32 control_freq;
683b6d3b
JB		 1916
1917 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1918 return -EINVAL;
1919
1920 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1921
1922 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1923 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1924 chandef->center_freq1 = control_freq;
1925 chandef->center_freq2 = 0;
683b6d3b
JB		 1926
1927 /* Primary channel not allowed */
1928 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1929 return -EINVAL;
1930
3d9d1d66
JB		 1931 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1932 enum nl80211_channel_type chantype;
1933
1934 chantype = nla_get_u32(
1935 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1936
1937 switch (chantype) {
1938 case NL80211_CHAN_NO_HT:
1939 case NL80211_CHAN_HT20:
1940 case NL80211_CHAN_HT40PLUS:
1941 case NL80211_CHAN_HT40MINUS:
1942 cfg80211_chandef_create(chandef, chandef->chan,
1943 chantype);
1944 break;
1945 default:
1946 return -EINVAL;
1947 }
1948 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1949 chandef->width =
1950 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1951 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1952 chandef->center_freq1 =
1953 nla_get_u32(
1954 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1955 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1956 chandef->center_freq2 =
1957 nla_get_u32(
1958 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1959 }
1960
9f5e8f6e 1961 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1962 return -EINVAL;
1963
9f5e8f6e
JB		 1964 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1965 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1966 return -EINVAL;
1967
2f301ab2
SW		 1968 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1969 chandef->width == NL80211_CHAN_WIDTH_10) &&
1970 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1971 return -EINVAL;
1972
683b6d3b
JB		 1973 return 0;
1974}
1975
f444de05 1976static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1977 struct net_device *dev,
f444de05
JB		 1978 struct genl_info *info)
1979{
683b6d3b 1980 struct cfg80211_chan_def chandef;
f444de05 1981 int result;
e8c9bd5b 1982 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1983 struct wireless_dev *wdev = NULL;
e8c9bd5b 1984
e16821bc
JM		 1985 if (dev)
1986 wdev = dev->ieee80211_ptr;
f444de05
JB		 1987 if (!nl80211_can_set_dev_channel(wdev))
1988 return -EOPNOTSUPP;
e16821bc
JM		 1989 if (wdev)
1990 iftype = wdev->iftype;
f444de05 1991
683b6d3b
JB		 1992 result = nl80211_parse_chandef(rdev, info, &chandef);
1993 if (result)
1994 return result;
f444de05 1995
e8c9bd5b 1996 switch (iftype) {
aa430da4
JB		 1997 case NL80211_IFTYPE_AP:
1998 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1999 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 2000 result = -EINVAL;
2001 break;
2002 }
e16821bc
JM		 2003 if (wdev->beacon_interval) {
2004 if (!dev || !rdev->ops->set_ap_chanwidth ||
2005 !(rdev->wiphy.features &
2006 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2007 result = -EBUSY;
2008 break;
2009 }
2010
2011 /* Only allow dynamic channel width changes */
2012 if (chandef.chan != wdev->preset_chandef.chan) {
2013 result = -EBUSY;
2014 break;
2015 }
2016 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2017 if (result)
2018 break;
2019 }
683b6d3b 2020 wdev->preset_chandef = chandef;
aa430da4
JB		 2021 result = 0;
2022 break;
cc1d2806 2023 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2024 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2025 break;
e8c9bd5b 2026 case NL80211_IFTYPE_MONITOR:
683b6d3b 2027 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2028 break;
aa430da4 2029 default:
e8c9bd5b 2030 result = -EINVAL;
f444de05 2031 }
f444de05
JB		 2032
2033 return result;
2034}
2035
2036static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2037{
4c476991
JB		 2038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2039 struct net_device *netdev = info->user_ptr[1];
f444de05 2040
e16821bc 2041 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2042}
2043
e8347eba
BJ		 2044static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2045{
43b19952
JB		 2046 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2047 struct net_device *dev = info->user_ptr[1];
2048 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2049 const u8 *bssid;
e8347eba
BJ		 2050
2051 if (!info->attrs[NL80211_ATTR_MAC])
2052 return -EINVAL;
2053
43b19952
JB		 2054 if (netif_running(dev))
2055 return -EBUSY;
e8347eba 2056
43b19952
JB		 2057 if (!rdev->ops->set_wds_peer)
2058 return -EOPNOTSUPP;
e8347eba 2059
43b19952
JB		 2060 if (wdev->iftype != NL80211_IFTYPE_WDS)
2061 return -EOPNOTSUPP;
e8347eba
BJ		 2062
2063 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2064 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2065}
2066
2067
55682965
JB		 2068static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2069{
2070 struct cfg80211_registered_device *rdev;
f444de05
JB		 2071 struct net_device *netdev = NULL;
2072 struct wireless_dev *wdev;
a1e567c8 2073 int result = 0, rem_txq_params = 0;
31888487 2074 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2075 u32 changed;
2076 u8 retry_short = 0, retry_long = 0;
2077 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2078 u8 coverage_class = 0;
55682965 2079
5fe231e8
JB		 2080 ASSERT_RTNL();
2081
f444de05
JB		 2082 /*
2083 * Try to find the wiphy and netdev. Normally this
2084 * function shouldn't need the netdev, but this is
2085 * done for backward compatibility -- previously
2086 * setting the channel was done per wiphy, but now
2087 * it is per netdev. Previous userland like hostapd
2088 * also passed a netdev to set_wiphy, so that it is
2089 * possible to let that go to the right netdev!
2090 */
4bbf4d56 2091
f444de05
JB		 2092 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2093 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2094
7f2b8562 2095 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2096 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2097 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2098 else
f444de05 2099 netdev = NULL;
4bbf4d56
JB		 2100 }
2101
f444de05 2102 if (!netdev) {
878d9ec7
JB		 2103 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2104 info->attrs);
5fe231e8 2105 if (IS_ERR(rdev))
4c476991 2106 return PTR_ERR(rdev);
f444de05
JB		 2107 wdev = NULL;
2108 netdev = NULL;
2109 result = 0;
71fe96bf 2110 } else
f444de05 2111 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2112
2113 /*
2114 * end workaround code, by now the rdev is available
2115 * and locked, and wdev may or may not be NULL.
2116 */
4bbf4d56
JB		 2117
2118 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2119 result = cfg80211_dev_rename(
2120 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2121
4bbf4d56 2122 if (result)
7f2b8562 2123 return result;
31888487
JM		 2124
2125 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2126 struct ieee80211_txq_params txq_params;
2127 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2128
7f2b8562
YX		 2129 if (!rdev->ops->set_txq_params)
2130 return -EOPNOTSUPP;
31888487 2131
7f2b8562
YX		 2132 if (!netdev)
2133 return -EINVAL;
f70f01c2 2134
133a3ff2 2135 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2136 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2137 return -EINVAL;
133a3ff2 2138
7f2b8562
YX		 2139 if (!netif_running(netdev))
2140 return -ENETDOWN;
2b5f8b0b 2141
31888487
JM		 2142 nla_for_each_nested(nl_txq_params,
2143 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2144 rem_txq_params) {
ae811e21
JB		 2145 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2146 nla_data(nl_txq_params),
2147 nla_len(nl_txq_params),
2148 txq_params_policy);
2149 if (result)
2150 return result;
31888487
JM		 2151 result = parse_txq_params(tb, &txq_params);
2152 if (result)
7f2b8562 2153 return result;
31888487 2154
e35e4d28
HG		 2155 result = rdev_set_txq_params(rdev, netdev,
2156 &txq_params);
31888487 2157 if (result)
7f2b8562 2158 return result;
31888487
JM		 2159 }
2160 }
55682965 2161
72bdcf34 2162 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2163 result = __nl80211_set_channel(
2164 rdev,
2165 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2166 info);
72bdcf34 2167 if (result)
7f2b8562 2168 return result;
72bdcf34
JM		 2169 }
2170
98d2ff8b 2171 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2172 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2173 enum nl80211_tx_power_setting type;
2174 int idx, mbm = 0;
2175
c8442118
JB		 2176 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2177 txp_wdev = NULL;
2178
7f2b8562
YX		 2179 if (!rdev->ops->set_tx_power)
2180 return -EOPNOTSUPP;
98d2ff8b
JO		 2181
2182 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2183 type = nla_get_u32(info->attrs[idx]);
2184
2185 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2186 (type != NL80211_TX_POWER_AUTOMATIC))
2187 return -EINVAL;
98d2ff8b
JO		 2188
2189 if (type != NL80211_TX_POWER_AUTOMATIC) {
2190 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2191 mbm = nla_get_u32(info->attrs[idx]);
2192 }
2193
c8442118 2194 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2195 if (result)
7f2b8562 2196 return result;
98d2ff8b
JO		 2197 }
2198
afe0cbf8
BR		 2199 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2200 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2201 u32 tx_ant, rx_ant;
7f531e03
BR		 2202 if ((!rdev->wiphy.available_antennas_tx &&
2203 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2204 !rdev->ops->set_antenna)
2205 return -EOPNOTSUPP;
afe0cbf8
BR		 2206
2207 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2208 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2209
a7ffac95 2210 /* reject antenna configurations which don't match the
7f531e03
BR		 2211 * available antenna masks, except for the "all" mask */
2212 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2213 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2214 return -EINVAL;
a7ffac95 2215
7f531e03
BR		 2216 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2217 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2218
e35e4d28 2219 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2220 if (result)
7f2b8562 2221 return result;
afe0cbf8
BR		 2222 }
2223
b9a5f8ca
JM		 2224 changed = 0;
2225
2226 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2227 retry_short = nla_get_u8(
2228 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2229 if (retry_short == 0)
2230 return -EINVAL;
2231
b9a5f8ca
JM		 2232 changed |= WIPHY_PARAM_RETRY_SHORT;
2233 }
2234
2235 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2236 retry_long = nla_get_u8(
2237 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2238 if (retry_long == 0)
2239 return -EINVAL;
2240
b9a5f8ca
JM		 2241 changed |= WIPHY_PARAM_RETRY_LONG;
2242 }
2243
2244 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2245 frag_threshold = nla_get_u32(
2246 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2247 if (frag_threshold < 256)
2248 return -EINVAL;
2249
b9a5f8ca
JM		 2250 if (frag_threshold != (u32) -1) {
2251 /*
2252 * Fragments (apart from the last one) are required to
2253 * have even length. Make the fragmentation code
2254 * simpler by stripping LSB should someone try to use
2255 * odd threshold value.
2256 */
2257 frag_threshold &= ~0x1;
2258 }
2259 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2260 }
2261
2262 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2263 rts_threshold = nla_get_u32(
2264 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2265 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2266 }
2267
81077e82 2268 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2269 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2270 return -EINVAL;
2271
81077e82
LT		 2272 coverage_class = nla_get_u8(
2273 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2274 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2275 }
2276
3057dbfd
LB		 2277 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2278 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2279 return -EOPNOTSUPP;
2280
2281 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2282 }
2283
b9a5f8ca
JM		 2284 if (changed) {
2285 u8 old_retry_short, old_retry_long;
2286 u32 old_frag_threshold, old_rts_threshold;
81077e82 2287 u8 old_coverage_class;
b9a5f8ca 2288
7f2b8562
YX		 2289 if (!rdev->ops->set_wiphy_params)
2290 return -EOPNOTSUPP;
b9a5f8ca
JM		 2291
2292 old_retry_short = rdev->wiphy.retry_short;
2293 old_retry_long = rdev->wiphy.retry_long;
2294 old_frag_threshold = rdev->wiphy.frag_threshold;
2295 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2296 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2297
2298 if (changed & WIPHY_PARAM_RETRY_SHORT)
2299 rdev->wiphy.retry_short = retry_short;
2300 if (changed & WIPHY_PARAM_RETRY_LONG)
2301 rdev->wiphy.retry_long = retry_long;
2302 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2303 rdev->wiphy.frag_threshold = frag_threshold;
2304 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2305 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2306 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2307 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2308
e35e4d28 2309 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2310 if (result) {
2311 rdev->wiphy.retry_short = old_retry_short;
2312 rdev->wiphy.retry_long = old_retry_long;
2313 rdev->wiphy.frag_threshold = old_frag_threshold;
2314 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2315 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2316 }
2317 }
7f2b8562 2318 return 0;
55682965
JB		 2319}
2320
71bbc994
JB		 2321static inline u64 wdev_id(struct wireless_dev *wdev)
2322{
2323 return (u64)wdev->identifier |
f26cbf40 2324 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2325}
55682965 2326
683b6d3b 2327static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2328 const struct cfg80211_chan_def *chandef)
683b6d3b 2329{
601555cd
JB		 2330 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2331 return -EINVAL;
3d9d1d66 2332
683b6d3b
JB		 2333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2334 chandef->chan->center_freq))
2335 return -ENOBUFS;
3d9d1d66
JB		 2336 switch (chandef->width) {
2337 case NL80211_CHAN_WIDTH_20_NOHT:
2338 case NL80211_CHAN_WIDTH_20:
2339 case NL80211_CHAN_WIDTH_40:
2340 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2341 cfg80211_get_chandef_type(chandef)))
2342 return -ENOBUFS;
2343 break;
2344 default:
2345 break;
2346 }
2347 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2348 return -ENOBUFS;
2349 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2350 return -ENOBUFS;
2351 if (chandef->center_freq2 &&
2352 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2353 return -ENOBUFS;
2354 return 0;
2355}
2356
15e47304 2357static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2358 struct cfg80211_registered_device *rdev,
8f894be2 2359 struct wireless_dev *wdev, bool removal)
55682965 2360{
72fb2abc 2361 struct net_device *dev = wdev->netdev;
8f894be2 2362 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2363 void *hdr;
2364
8f894be2
TB		 2365 if (removal)
2366 cmd = NL80211_CMD_DEL_INTERFACE;
2367
2368 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2369 if (!hdr)
2370 return -1;
2371
72fb2abc
JB		 2372 if (dev &&
2373 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2374 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2375 goto nla_put_failure;
2376
2377 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2378 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2379 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2380 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2381 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2382 rdev->devlist_generation ^
2383 (cfg80211_rdev_list_generation << 2)))
2384 goto nla_put_failure;
f5ea9120 2385
5b7ccaf3 2386 if (rdev->ops->get_channel) {
683b6d3b
JB		 2387 int ret;
2388 struct cfg80211_chan_def chandef;
2389
2390 ret = rdev_get_channel(rdev, wdev, &chandef);
2391 if (ret == 0) {
2392 if (nl80211_send_chandef(msg, &chandef))
2393 goto nla_put_failure;
2394 }
d91df0e3
PF		 2395 }
2396
b84e7a05
AQ		 2397 if (wdev->ssid_len) {
2398 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2399 goto nla_put_failure;
2400 }
2401
55682965
JB		 2402 return genlmsg_end(msg, hdr);
2403
2404 nla_put_failure:
bc3ed28c
TG		 2405 genlmsg_cancel(msg, hdr);
2406 return -EMSGSIZE;
55682965
JB		 2407}
2408
2409static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2410{
2411 int wp_idx = 0;
2412 int if_idx = 0;
2413 int wp_start = cb->args[0];
2414 int if_start = cb->args[1];
f5ea9120 2415 struct cfg80211_registered_device *rdev;
55682965
JB		 2416 struct wireless_dev *wdev;
2417
5fe231e8 2418 rtnl_lock();
f5ea9120
JB		 2419 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2420 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2421 continue;
bba95fef
JB		 2422 if (wp_idx < wp_start) {
2423 wp_idx++;
55682965 2424 continue;
bba95fef 2425 }
55682965
JB		 2426 if_idx = 0;
2427
89a54e48 2428 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2429 if (if_idx < if_start) {
2430 if_idx++;
55682965 2431 continue;
bba95fef 2432 }
15e47304 2433 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2434 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2435 rdev, wdev, false) < 0) {
bba95fef
JB		 2436 goto out;
2437 }
2438 if_idx++;
55682965 2439 }
bba95fef
JB		 2440
2441 wp_idx++;
55682965 2442 }
bba95fef 2443 out:
5fe231e8 2444 rtnl_unlock();
55682965
JB		 2445
2446 cb->args[0] = wp_idx;
2447 cb->args[1] = if_idx;
2448
2449 return skb->len;
2450}
2451
2452static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2453{
2454 struct sk_buff *msg;
1b8ec87a 2455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2456 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2457
fd2120ca 2458 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2459 if (!msg)
4c476991 2460 return -ENOMEM;
55682965 2461
15e47304 2462 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2463 rdev, wdev, false) < 0) {
4c476991
JB		 2464 nlmsg_free(msg);
2465 return -ENOBUFS;
2466 }
55682965 2467
134e6375 2468 return genlmsg_reply(msg, info);
55682965
JB		 2469}
2470
66f7ac50
MW		 2471static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2472 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2473 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2474 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2475 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2476 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2477 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2478};
2479
2480static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2481{
2482 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2483 int flag;
2484
2485 *mntrflags = 0;
2486
2487 if (!nla)
2488 return -EINVAL;
2489
2490 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2491 nla, mntr_flags_policy))
2492 return -EINVAL;
2493
2494 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2495 if (flags[flag])
2496 *mntrflags |= (1<<flag);
2497
2498 return 0;
2499}
2500
9bc383de 2501static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2502 struct net_device *netdev, u8 use_4addr,
2503 enum nl80211_iftype iftype)
9bc383de 2504{
ad4bb6f8 2505 if (!use_4addr) {
f350a0a8 2506 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2507 return -EBUSY;
9bc383de 2508 return 0;
ad4bb6f8 2509 }
9bc383de
JB		 2510
2511 switch (iftype) {
2512 case NL80211_IFTYPE_AP_VLAN:
2513 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2514 return 0;
2515 break;
2516 case NL80211_IFTYPE_STATION:
2517 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2518 return 0;
2519 break;
2520 default:
2521 break;
2522 }
2523
2524 return -EOPNOTSUPP;
2525}
2526
55682965
JB		 2527static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2528{
4c476991 2529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2530 struct vif_params params;
e36d56b6 2531 int err;
04a773ad 2532 enum nl80211_iftype otype, ntype;
4c476991 2533 struct net_device *dev = info->user_ptr[1];
92ffe055 2534 u32 _flags, *flags = NULL;
ac7f9cfa 2535 bool change = false;
55682965 2536
2ec600d6
LCC		 2537 memset(&params, 0, sizeof(params));
2538
04a773ad 2539 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2540
723b038d 2541 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2542 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2543 if (otype != ntype)
ac7f9cfa 2544 change = true;
4c476991
JB		 2545 if (ntype > NL80211_IFTYPE_MAX)
2546 return -EINVAL;
723b038d
JB		 2547 }
2548
92ffe055 2549 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2550 struct wireless_dev *wdev = dev->ieee80211_ptr;
2551
4c476991
JB		 2552 if (ntype != NL80211_IFTYPE_MESH_POINT)
2553 return -EINVAL;
29cbe68c
JB		 2554 if (netif_running(dev))
2555 return -EBUSY;
2556
2557 wdev_lock(wdev);
2558 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2559 IEEE80211_MAX_MESH_ID_LEN);
2560 wdev->mesh_id_up_len =
2561 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2562 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2563 wdev->mesh_id_up_len);
2564 wdev_unlock(wdev);
2ec600d6
LCC		 2565 }
2566
8b787643
FF		 2567 if (info->attrs[NL80211_ATTR_4ADDR]) {
2568 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2569 change = true;
ad4bb6f8 2570 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2571 if (err)
4c476991 2572 return err;
8b787643
FF		 2573 } else {
2574 params.use_4addr = -1;
2575 }
2576
92ffe055 2577 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2578 if (ntype != NL80211_IFTYPE_MONITOR)
2579 return -EINVAL;
92ffe055
JB		 2580 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2581 &_flags);
ac7f9cfa 2582 if (err)
4c476991 2583 return err;
ac7f9cfa
JB		 2584
2585 flags = &_flags;
2586 change = true;
92ffe055 2587 }
3b85875a 2588
18003297 2589 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2590 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2591 return -EOPNOTSUPP;
2592
ac7f9cfa 2593 if (change)
3d54d255 2594 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2595 else
2596 err = 0;
60719ffd 2597
9bc383de
JB		 2598 if (!err && params.use_4addr != -1)
2599 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2600
55682965
JB		 2601 return err;
2602}
2603
2604static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2605{
4c476991 2606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2607 struct vif_params params;
84efbb84 2608 struct wireless_dev *wdev;
8f894be2 2609 struct sk_buff *msg, *event;
55682965
JB		 2610 int err;
2611 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2612 u32 flags;
55682965 2613
78f22b6a
JB		 2614 /* to avoid failing a new interface creation due to pending removal */
2615 cfg80211_destroy_ifaces(rdev);
2616
2ec600d6
LCC		 2617 memset(&params, 0, sizeof(params));
2618
55682965
JB		 2619 if (!info->attrs[NL80211_ATTR_IFNAME])
2620 return -EINVAL;
2621
2622 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2623 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2624 if (type > NL80211_IFTYPE_MAX)
2625 return -EINVAL;
2626 }
2627
79c97e97 2628 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2629 !(rdev->wiphy.interface_modes & (1 << type)))
2630 return -EOPNOTSUPP;
55682965 2631
e8f479b1
BG		 2632 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2633 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2634 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2635 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2636 ETH_ALEN);
2637 if (!is_valid_ether_addr(params.macaddr))
2638 return -EADDRNOTAVAIL;
2639 }
2640
9bc383de 2641 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2642 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2643 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2644 if (err)
4c476991 2645 return err;
9bc383de 2646 }
8b787643 2647
1c90f9d4
JB		 2648 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2649 if (!msg)
2650 return -ENOMEM;
2651
66f7ac50
MW		 2652 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2653 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2654 &flags);
e057d3c3 2655
18003297 2656 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2657 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2658 return -EOPNOTSUPP;
2659
e35e4d28
HG		 2660 wdev = rdev_add_virtual_intf(rdev,
2661 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2662 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2663 if (WARN_ON(!wdev)) {
2664 nlmsg_free(msg);
2665 return -EPROTO;
2666 } else if (IS_ERR(wdev)) {
1c90f9d4 2667 nlmsg_free(msg);
84efbb84 2668 return PTR_ERR(wdev);
1c90f9d4 2669 }
2ec600d6 2670
18e5ca65 2671 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2672 wdev->owner_nlportid = info->snd_portid;
2673
98104fde
JB		 2674 switch (type) {
2675 case NL80211_IFTYPE_MESH_POINT:
2676 if (!info->attrs[NL80211_ATTR_MESH_ID])
2677 break;
29cbe68c
JB		 2678 wdev_lock(wdev);
2679 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2680 IEEE80211_MAX_MESH_ID_LEN);
2681 wdev->mesh_id_up_len =
2682 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2683 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2684 wdev->mesh_id_up_len);
2685 wdev_unlock(wdev);
98104fde
JB		 2686 break;
2687 case NL80211_IFTYPE_P2P_DEVICE:
2688 /*
2689 * P2P Device doesn't have a netdev, so doesn't go
2690 * through the netdev notifier and must be added here
2691 */
2692 mutex_init(&wdev->mtx);
2693 INIT_LIST_HEAD(&wdev->event_list);
2694 spin_lock_init(&wdev->event_lock);
2695 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2696 spin_lock_init(&wdev->mgmt_registrations_lock);
2697
98104fde
JB		 2698 wdev->identifier = ++rdev->wdev_id;
2699 list_add_rcu(&wdev->list, &rdev->wdev_list);
2700 rdev->devlist_generation++;
98104fde
JB		 2701 break;
2702 default:
2703 break;
29cbe68c
JB		 2704 }
2705
15e47304 2706 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2707 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2708 nlmsg_free(msg);
2709 return -ENOBUFS;
2710 }
2711
8f894be2
TB		 2712 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2713 if (event) {
2714 if (nl80211_send_iface(event, 0, 0, 0,
2715 rdev, wdev, false) < 0) {
2716 nlmsg_free(event);
2717 goto out;
2718 }
2719
2720 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2721 event, 0, NL80211_MCGRP_CONFIG,
2722 GFP_KERNEL);
2723 }
2724
2725out:
1c90f9d4 2726 return genlmsg_reply(msg, info);
55682965
JB		 2727}
2728
2729static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2730{
4c476991 2731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2732 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2733 struct sk_buff *msg;
2734 int status;
55682965 2735
4c476991
JB		 2736 if (!rdev->ops->del_virtual_intf)
2737 return -EOPNOTSUPP;
55682965 2738
8f894be2
TB		 2739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2740 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2741 nlmsg_free(msg);
2742 msg = NULL;
2743 }
2744
84efbb84
JB		 2745 /*
2746 * If we remove a wireless device without a netdev then clear
2747 * user_ptr[1] so that nl80211_post_doit won't dereference it
2748 * to check if it needs to do dev_put(). Otherwise it crashes
2749 * since the wdev has been freed, unlike with a netdev where
2750 * we need the dev_put() for the netdev to really be freed.
2751 */
2752 if (!wdev->netdev)
2753 info->user_ptr[1] = NULL;
2754
8f894be2
TB		 2755 status = rdev_del_virtual_intf(rdev, wdev);
2756 if (status >= 0 && msg)
2757 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2758 msg, 0, NL80211_MCGRP_CONFIG,
2759 GFP_KERNEL);
2760 else
2761 nlmsg_free(msg);
2762
2763 return status;
55682965
JB		 2764}
2765
1d9d9213
SW		 2766static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2767{
2768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2769 struct net_device *dev = info->user_ptr[1];
2770 u16 noack_map;
2771
2772 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2773 return -EINVAL;
2774
2775 if (!rdev->ops->set_noack_map)
2776 return -EOPNOTSUPP;
2777
2778 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2779
e35e4d28 2780 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2781}
2782
41ade00f
JB		 2783struct get_key_cookie {
2784 struct sk_buff *msg;
2785 int error;
b9454e83 2786 int idx;
41ade00f
JB		 2787};
2788
2789static void get_key_callback(void *c, struct key_params *params)
2790{
b9454e83 2791 struct nlattr *key;
41ade00f
JB		 2792 struct get_key_cookie *cookie = c;
2793
9360ffd1
DM		 2794 if ((params->key &&
2795 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2796 params->key_len, params->key)) ||
2797 (params->seq &&
2798 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2799 params->seq_len, params->seq)) ||
2800 (params->cipher &&
2801 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2802 params->cipher)))
2803 goto nla_put_failure;
41ade00f 2804
b9454e83
JB		 2805 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2806 if (!key)
2807 goto nla_put_failure;
2808
9360ffd1
DM		 2809 if ((params->key &&
2810 nla_put(cookie->msg, NL80211_KEY_DATA,
2811 params->key_len, params->key)) ||
2812 (params->seq &&
2813 nla_put(cookie->msg, NL80211_KEY_SEQ,
2814 params->seq_len, params->seq)) ||
2815 (params->cipher &&
2816 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2817 params->cipher)))
2818 goto nla_put_failure;
b9454e83 2819
9360ffd1
DM		 2820 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2821 goto nla_put_failure;
b9454e83
JB		 2822
2823 nla_nest_end(cookie->msg, key);
2824
41ade00f
JB		 2825 return;
2826 nla_put_failure:
2827 cookie->error = 1;
2828}
2829
2830static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2831{
4c476991 2832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2833 int err;
4c476991 2834 struct net_device *dev = info->user_ptr[1];
41ade00f 2835 u8 key_idx = 0;
e31b8213
JB		 2836 const u8 *mac_addr = NULL;
2837 bool pairwise;
41ade00f
JB		 2838 struct get_key_cookie cookie = {
2839 .error = 0,
2840 };
2841 void *hdr;
2842 struct sk_buff *msg;
2843
2844 if (info->attrs[NL80211_ATTR_KEY_IDX])
2845 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2846
3cfcf6ac 2847 if (key_idx > 5)
41ade00f
JB		 2848 return -EINVAL;
2849
2850 if (info->attrs[NL80211_ATTR_MAC])
2851 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2852
e31b8213
JB		 2853 pairwise = !!mac_addr;
2854 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2855 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2856 if (kt >= NUM_NL80211_KEYTYPES)
2857 return -EINVAL;
2858 if (kt != NL80211_KEYTYPE_GROUP &&
2859 kt != NL80211_KEYTYPE_PAIRWISE)
2860 return -EINVAL;
2861 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2862 }
2863
4c476991
JB		 2864 if (!rdev->ops->get_key)
2865 return -EOPNOTSUPP;
41ade00f 2866
fd2120ca 2867 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2868 if (!msg)
2869 return -ENOMEM;
41ade00f 2870
15e47304 2871 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2872 NL80211_CMD_NEW_KEY);
cb35fba3 2873 if (!hdr)
9fe271af 2874 goto nla_put_failure;
41ade00f
JB		 2875
2876 cookie.msg = msg;
b9454e83 2877 cookie.idx = key_idx;
41ade00f 2878
9360ffd1
DM		 2879 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2880 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2881 goto nla_put_failure;
2882 if (mac_addr &&
2883 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2884 goto nla_put_failure;
41ade00f 2885
e31b8213
JB		 2886 if (pairwise && mac_addr &&
2887 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2888 return -ENOENT;
2889
e35e4d28
HG		 2890 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2891 get_key_callback);
41ade00f
JB		 2892
2893 if (err)
6c95e2a2 2894 goto free_msg;
41ade00f
JB		 2895
2896 if (cookie.error)
2897 goto nla_put_failure;
2898
2899 genlmsg_end(msg, hdr);
4c476991 2900 return genlmsg_reply(msg, info);
41ade00f
JB		 2901
2902 nla_put_failure:
2903 err = -ENOBUFS;
6c95e2a2 2904 free_msg:
41ade00f 2905 nlmsg_free(msg);
41ade00f
JB		 2906 return err;
2907}
2908
2909static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2910{
4c476991 2911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2912 struct key_parse key;
41ade00f 2913 int err;
4c476991 2914 struct net_device *dev = info->user_ptr[1];
41ade00f 2915
b9454e83
JB		 2916 err = nl80211_parse_key(info, &key);
2917 if (err)
2918 return err;
41ade00f 2919
b9454e83 2920 if (key.idx < 0)
41ade00f
JB		 2921 return -EINVAL;
2922
b9454e83
JB		 2923 /* only support setting default key */
2924 if (!key.def && !key.defmgmt)
41ade00f
JB		 2925 return -EINVAL;
2926
dbd2fd65 2927 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2928
dbd2fd65
JB		 2929 if (key.def) {
2930 if (!rdev->ops->set_default_key) {
2931 err = -EOPNOTSUPP;
2932 goto out;
2933 }
41ade00f 2934
dbd2fd65
JB		 2935 err = nl80211_key_allowed(dev->ieee80211_ptr);
2936 if (err)
2937 goto out;
2938
e35e4d28 2939 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2940 key.def_uni, key.def_multi);
2941
2942 if (err)
2943 goto out;
fffd0934 2944
3d23e349 2945#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2946 dev->ieee80211_ptr->wext.default_key = key.idx;
2947#endif
2948 } else {
2949 if (key.def_uni || !key.def_multi) {
2950 err = -EINVAL;
2951 goto out;
2952 }
2953
2954 if (!rdev->ops->set_default_mgmt_key) {
2955 err = -EOPNOTSUPP;
2956 goto out;
2957 }
2958
2959 err = nl80211_key_allowed(dev->ieee80211_ptr);
2960 if (err)
2961 goto out;
2962
e35e4d28 2963 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2964 if (err)
2965 goto out;
2966
2967#ifdef CONFIG_CFG80211_WEXT
2968 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2969#endif
dbd2fd65
JB		 2970 }
2971
2972 out:
fffd0934 2973 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2974
41ade00f
JB		 2975 return err;
2976}
2977
2978static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2979{
4c476991 2980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2981 int err;
4c476991 2982 struct net_device *dev = info->user_ptr[1];
b9454e83 2983 struct key_parse key;
e31b8213 2984 const u8 *mac_addr = NULL;
41ade00f 2985
b9454e83
JB		 2986 err = nl80211_parse_key(info, &key);
2987 if (err)
2988 return err;
41ade00f 2989
b9454e83 2990 if (!key.p.key)
41ade00f
JB		 2991 return -EINVAL;
2992
41ade00f
JB		 2993 if (info->attrs[NL80211_ATTR_MAC])
2994 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2995
e31b8213
JB		 2996 if (key.type == -1) {
2997 if (mac_addr)
2998 key.type = NL80211_KEYTYPE_PAIRWISE;
2999 else
3000 key.type = NL80211_KEYTYPE_GROUP;
3001 }
3002
3003 /* for now */
3004 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3005 key.type != NL80211_KEYTYPE_GROUP)
3006 return -EINVAL;
3007
4c476991
JB		 3008 if (!rdev->ops->add_key)
3009 return -EOPNOTSUPP;
25e47c18 3010
e31b8213
JB		 3011 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3012 key.type == NL80211_KEYTYPE_PAIRWISE,
3013 mac_addr))
4c476991 3014 return -EINVAL;
41ade00f 3015
fffd0934
JB		 3016 wdev_lock(dev->ieee80211_ptr);
3017 err = nl80211_key_allowed(dev->ieee80211_ptr);
3018 if (!err)
e35e4d28
HG		 3019 err = rdev_add_key(rdev, dev, key.idx,
3020 key.type == NL80211_KEYTYPE_PAIRWISE,
3021 mac_addr, &key.p);
fffd0934 3022 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3023
41ade00f
JB		 3024 return err;
3025}
3026
3027static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3028{
4c476991 3029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3030 int err;
4c476991 3031 struct net_device *dev = info->user_ptr[1];
41ade00f 3032 u8 *mac_addr = NULL;
b9454e83 3033 struct key_parse key;
41ade00f 3034
b9454e83
JB		 3035 err = nl80211_parse_key(info, &key);
3036 if (err)
3037 return err;
41ade00f
JB		 3038
3039 if (info->attrs[NL80211_ATTR_MAC])
3040 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3041
e31b8213
JB		 3042 if (key.type == -1) {
3043 if (mac_addr)
3044 key.type = NL80211_KEYTYPE_PAIRWISE;
3045 else
3046 key.type = NL80211_KEYTYPE_GROUP;
3047 }
3048
3049 /* for now */
3050 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3051 key.type != NL80211_KEYTYPE_GROUP)
3052 return -EINVAL;
3053
4c476991
JB		 3054 if (!rdev->ops->del_key)
3055 return -EOPNOTSUPP;
41ade00f 3056
fffd0934
JB		 3057 wdev_lock(dev->ieee80211_ptr);
3058 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3059
3060 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3061 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3062 err = -ENOENT;
3063
fffd0934 3064 if (!err)
e35e4d28
HG		 3065 err = rdev_del_key(rdev, dev, key.idx,
3066 key.type == NL80211_KEYTYPE_PAIRWISE,
3067 mac_addr);
41ade00f 3068
3d23e349 3069#ifdef CONFIG_CFG80211_WEXT
08645126 3070 if (!err) {
b9454e83 3071 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3072 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3073 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3074 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3075 }
3076#endif
fffd0934 3077 wdev_unlock(dev->ieee80211_ptr);
08645126 3078
41ade00f
JB		 3079 return err;
3080}
3081
77765eaf
VT		 3082/* This function returns an error or the number of nested attributes */
3083static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3084{
3085 struct nlattr *attr;
3086 int n_entries = 0, tmp;
3087
3088 nla_for_each_nested(attr, nl_attr, tmp) {
3089 if (nla_len(attr) != ETH_ALEN)
3090 return -EINVAL;
3091
3092 n_entries++;
3093 }
3094
3095 return n_entries;
3096}
3097
3098/*
3099 * This function parses ACL information and allocates memory for ACL data.
3100 * On successful return, the calling function is responsible to free the
3101 * ACL buffer returned by this function.
3102 */
3103static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3104 struct genl_info *info)
3105{
3106 enum nl80211_acl_policy acl_policy;
3107 struct nlattr *attr;
3108 struct cfg80211_acl_data *acl;
3109 int i = 0, n_entries, tmp;
3110
3111 if (!wiphy->max_acl_mac_addrs)
3112 return ERR_PTR(-EOPNOTSUPP);
3113
3114 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3115 return ERR_PTR(-EINVAL);
3116
3117 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3118 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3119 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3120 return ERR_PTR(-EINVAL);
3121
3122 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3123 return ERR_PTR(-EINVAL);
3124
3125 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3126 if (n_entries < 0)
3127 return ERR_PTR(n_entries);
3128
3129 if (n_entries > wiphy->max_acl_mac_addrs)
3130 return ERR_PTR(-ENOTSUPP);
3131
3132 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3133 GFP_KERNEL);
3134 if (!acl)
3135 return ERR_PTR(-ENOMEM);
3136
3137 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3138 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3139 i++;
3140 }
3141
3142 acl->n_acl_entries = n_entries;
3143 acl->acl_policy = acl_policy;
3144
3145 return acl;
3146}
3147
3148static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3149{
3150 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3151 struct net_device *dev = info->user_ptr[1];
3152 struct cfg80211_acl_data *acl;
3153 int err;
3154
3155 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3156 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3157 return -EOPNOTSUPP;
3158
3159 if (!dev->ieee80211_ptr->beacon_interval)
3160 return -EINVAL;
3161
3162 acl = parse_acl_data(&rdev->wiphy, info);
3163 if (IS_ERR(acl))
3164 return PTR_ERR(acl);
3165
3166 err = rdev_set_mac_acl(rdev, dev, acl);
3167
3168 kfree(acl);
3169
3170 return err;
3171}
3172
a1193be8 3173static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3174 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3175{
8860020e 3176 bool haveinfo = false;
ed1b6cc7 3177
a1193be8
SW		 3178 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3179 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3180 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3181 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3182 return -EINVAL;
3183
8860020e 3184 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3185
a1193be8
SW		 3186 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3187 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3188 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3189 if (!bcn->head_len)
3190 return -EINVAL;
3191 haveinfo = true;
ed1b6cc7
JB		 3192 }
3193
a1193be8
SW		 3194 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3195 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3196 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3197 haveinfo = true;
ed1b6cc7
JB		 3198 }
3199
4c476991
JB		 3200 if (!haveinfo)
3201 return -EINVAL;
3b85875a 3202
a1193be8
SW		 3203 if (attrs[NL80211_ATTR_IE]) {
3204 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3205 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3206 }
3207
a1193be8 3208 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3209 bcn->proberesp_ies =
a1193be8 3210 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3211 bcn->proberesp_ies_len =
a1193be8 3212 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3213 }
3214
a1193be8 3215 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3216 bcn->assocresp_ies =
a1193be8 3217 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3218 bcn->assocresp_ies_len =
a1193be8 3219 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3220 }
3221
a1193be8
SW		 3222 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3223 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3224 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3225 }
3226
8860020e
JB		 3227 return 0;
3228}
3229
46c1dd0c
FF		 3230static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3231 struct cfg80211_ap_settings *params)
3232{
3233 struct wireless_dev *wdev;
3234 bool ret = false;
3235
89a54e48 3236 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3237 if (wdev->iftype != NL80211_IFTYPE_AP &&
3238 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3239 continue;
3240
683b6d3b 3241 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3242 continue;
3243
683b6d3b 3244 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3245 ret = true;
3246 break;
3247 }
3248
46c1dd0c
FF		 3249 return ret;
3250}
3251
e39e5b5e
JM		 3252static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3253 enum nl80211_auth_type auth_type,
3254 enum nl80211_commands cmd)
3255{
3256 if (auth_type > NL80211_AUTHTYPE_MAX)
3257 return false;
3258
3259 switch (cmd) {
3260 case NL80211_CMD_AUTHENTICATE:
3261 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3262 auth_type == NL80211_AUTHTYPE_SAE)
3263 return false;
3264 return true;
3265 case NL80211_CMD_CONNECT:
3266 case NL80211_CMD_START_AP:
3267 /* SAE not supported yet */
3268 if (auth_type == NL80211_AUTHTYPE_SAE)
3269 return false;
3270 return true;
3271 default:
3272 return false;
3273 }
3274}
3275
8860020e
JB		 3276static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3277{
3278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3279 struct net_device *dev = info->user_ptr[1];
3280 struct wireless_dev *wdev = dev->ieee80211_ptr;
3281 struct cfg80211_ap_settings params;
3282 int err;
3283
3284 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3285 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3286 return -EOPNOTSUPP;
3287
3288 if (!rdev->ops->start_ap)
3289 return -EOPNOTSUPP;
3290
3291 if (wdev->beacon_interval)
3292 return -EALREADY;
3293
3294 memset(&params, 0, sizeof(params));
3295
3296 /* these are required for START_AP */
3297 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3298 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3299 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3300 return -EINVAL;
3301
a1193be8 3302 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3303 if (err)
3304 return err;
3305
3306 params.beacon_interval =
3307 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3308 params.dtim_period =
3309 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3310
3311 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3312 if (err)
3313 return err;
3314
3315 /*
3316 * In theory, some of these attributes should be required here
3317 * but since they were not used when the command was originally
3318 * added, keep them optional for old user space programs to let
3319 * them continue to work with drivers that do not need the
3320 * additional information -- drivers must check!
3321 */
3322 if (info->attrs[NL80211_ATTR_SSID]) {
3323 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3324 params.ssid_len =
3325 nla_len(info->attrs[NL80211_ATTR_SSID]);
3326 if (params.ssid_len == 0 ||
3327 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3328 return -EINVAL;
3329 }
3330
3331 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3332 params.hidden_ssid = nla_get_u32(
3333 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3334 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3335 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3336 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3337 return -EINVAL;
3338 }
3339
3340 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3341
3342 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3343 params.auth_type = nla_get_u32(
3344 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3345 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3346 NL80211_CMD_START_AP))
8860020e
JB		 3347 return -EINVAL;
3348 } else
3349 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3350
3351 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3352 NL80211_MAX_NR_CIPHER_SUITES);
3353 if (err)
3354 return err;
3355
1b658f11
VT		 3356 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3357 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3358 return -EOPNOTSUPP;
3359 params.inactivity_timeout = nla_get_u16(
3360 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3361 }
3362
53cabad7
JB		 3363 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3365 return -EINVAL;
3366 params.p2p_ctwindow =
3367 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3368 if (params.p2p_ctwindow > 127)
3369 return -EINVAL;
3370 if (params.p2p_ctwindow != 0 &&
3371 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3372 return -EINVAL;
3373 }
3374
3375 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3376 u8 tmp;
3377
3378 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3379 return -EINVAL;
3380 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3381 if (tmp > 1)
3382 return -EINVAL;
3383 params.p2p_opp_ps = tmp;
3384 if (params.p2p_opp_ps != 0 &&
3385 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3386 return -EINVAL;
3387 }
3388
aa430da4 3389 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3390 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3391 if (err)
3392 return err;
3393 } else if (wdev->preset_chandef.chan) {
3394 params.chandef = wdev->preset_chandef;
46c1dd0c 3395 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3396 return -EINVAL;
3397
174e0cd2
IP		 3398 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3399 wdev->iftype))
aa430da4
JB		 3400 return -EINVAL;
3401
77765eaf
VT		 3402 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3403 params.acl = parse_acl_data(&rdev->wiphy, info);
3404 if (IS_ERR(params.acl))
3405 return PTR_ERR(params.acl);
3406 }
3407
18998c38
EP		 3408 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3409 params.smps_mode =
3410 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3411 switch (params.smps_mode) {
3412 case NL80211_SMPS_OFF:
3413 break;
3414 case NL80211_SMPS_STATIC:
3415 if (!(rdev->wiphy.features &
3416 NL80211_FEATURE_STATIC_SMPS))
3417 return -EINVAL;
3418 break;
3419 case NL80211_SMPS_DYNAMIC:
3420 if (!(rdev->wiphy.features &
3421 NL80211_FEATURE_DYNAMIC_SMPS))
3422 return -EINVAL;
3423 break;
3424 default:
3425 return -EINVAL;
3426 }
3427 } else {
3428 params.smps_mode = NL80211_SMPS_OFF;
3429 }
3430
c56589ed 3431 wdev_lock(wdev);
e35e4d28 3432 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3433 if (!err) {
683b6d3b 3434 wdev->preset_chandef = params.chandef;
8860020e 3435 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3436 wdev->chandef = params.chandef;
06e191e2
AQ		 3437 wdev->ssid_len = params.ssid_len;
3438 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3439 }
c56589ed 3440 wdev_unlock(wdev);
77765eaf
VT		 3441
3442 kfree(params.acl);
3443
56d1893d 3444 return err;
ed1b6cc7
JB		 3445}
3446
8860020e
JB		 3447static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3448{
3449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3450 struct net_device *dev = info->user_ptr[1];
3451 struct wireless_dev *wdev = dev->ieee80211_ptr;
3452 struct cfg80211_beacon_data params;
3453 int err;
3454
3455 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3456 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3457 return -EOPNOTSUPP;
3458
3459 if (!rdev->ops->change_beacon)
3460 return -EOPNOTSUPP;
3461
3462 if (!wdev->beacon_interval)
3463 return -EINVAL;
3464
a1193be8 3465 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3466 if (err)
3467 return err;
3468
c56589ed
SW		 3469 wdev_lock(wdev);
3470 err = rdev_change_beacon(rdev, dev, &params);
3471 wdev_unlock(wdev);
3472
3473 return err;
8860020e
JB		 3474}
3475
3476static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3477{
4c476991
JB		 3478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3479 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3480
7c8d5e03 3481 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3482}
3483
5727ef1b
JB		 3484static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3485 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3486 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3487 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3488 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3489 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3490 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3491};
3492
eccb8e8f 3493static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3494 enum nl80211_iftype iftype,
eccb8e8f 3495 struct station_parameters *params)
5727ef1b
JB		 3496{
3497 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3498 struct nlattr *nla;
5727ef1b
JB		 3499 int flag;
3500
eccb8e8f
JB		 3501 /*
3502 * Try parsing the new attribute first so userspace
3503 * can specify both for older kernels.
3504 */
3505 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3506 if (nla) {
3507 struct nl80211_sta_flag_update *sta_flags;
3508
3509 sta_flags = nla_data(nla);
3510 params->sta_flags_mask = sta_flags->mask;
3511 params->sta_flags_set = sta_flags->set;
77ee7c89 3512 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3513 if ((params->sta_flags_mask |
3514 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3515 return -EINVAL;
3516 return 0;
3517 }
3518
3519 /* if present, parse the old attribute */
5727ef1b 3520
eccb8e8f 3521 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3522 if (!nla)
3523 return 0;
3524
3525 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3526 nla, sta_flags_policy))
3527 return -EINVAL;
3528
bdd3ae3d
JB		 3529 /*
3530 * Only allow certain flags for interface types so that
3531 * other attributes are silently ignored. Remember that
3532 * this is backward compatibility code with old userspace
3533 * and shouldn't be hit in other cases anyway.
3534 */
3535 switch (iftype) {
3536 case NL80211_IFTYPE_AP:
3537 case NL80211_IFTYPE_AP_VLAN:
3538 case NL80211_IFTYPE_P2P_GO:
3539 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3540 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3541 BIT(NL80211_STA_FLAG_WME) |
3542 BIT(NL80211_STA_FLAG_MFP);
3543 break;
3544 case NL80211_IFTYPE_P2P_CLIENT:
3545 case NL80211_IFTYPE_STATION:
3546 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3547 BIT(NL80211_STA_FLAG_TDLS_PEER);
3548 break;
3549 case NL80211_IFTYPE_MESH_POINT:
3550 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3551 BIT(NL80211_STA_FLAG_MFP) |
3552 BIT(NL80211_STA_FLAG_AUTHORIZED);
3553 default:
3554 return -EINVAL;
3555 }
5727ef1b 3556
3383b5a6
JB		 3557 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3558 if (flags[flag]) {
eccb8e8f 3559 params->sta_flags_set |= (1<<flag);
5727ef1b 3560
3383b5a6
JB		 3561 /* no longer support new API additions in old API */
3562 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3563 return -EINVAL;
3564 }
3565 }
3566
5727ef1b
JB		 3567 return 0;
3568}
3569
c8dcfd8a
FF		 3570static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3571 int attr)
3572{
3573 struct nlattr *rate;
8eb41c8d
VK		 3574 u32 bitrate;
3575 u16 bitrate_compat;
c8dcfd8a
FF		 3576
3577 rate = nla_nest_start(msg, attr);
3578 if (!rate)
db9c64cf 3579 return false;
c8dcfd8a
FF		 3580
3581 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3582 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3583 /* report 16-bit bitrate only if we can */
3584 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3585 if (bitrate > 0 &&
3586 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3587 return false;
3588 if (bitrate_compat > 0 &&
3589 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3590 return false;
3591
3592 if (info->flags & RATE_INFO_FLAGS_MCS) {
3593 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3594 return false;
3595 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3596 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3597 return false;
3598 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3599 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3600 return false;
3601 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3602 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3603 return false;
3604 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3605 return false;
3606 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3607 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3608 return false;
3609 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3610 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3611 return false;
3612 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3613 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3614 return false;
3615 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3616 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3617 return false;
3618 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3619 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3620 return false;
3621 }
c8dcfd8a
FF		 3622
3623 nla_nest_end(msg, rate);
3624 return true;
c8dcfd8a
FF		 3625}
3626
119363c7
FF		 3627static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3628 int id)
3629{
3630 void *attr;
3631 int i = 0;
3632
3633 if (!mask)
3634 return true;
3635
3636 attr = nla_nest_start(msg, id);
3637 if (!attr)
3638 return false;
3639
3640 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3641 if (!(mask & BIT(i)))
3642 continue;
3643
3644 if (nla_put_u8(msg, i, signal[i]))
3645 return false;
3646 }
3647
3648 nla_nest_end(msg, attr);
3649
3650 return true;
3651}
3652
15e47304 3653static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3654 int flags,
3655 struct cfg80211_registered_device *rdev,
3656 struct net_device *dev,
98b62183 3657 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3658{
3659 void *hdr;
f4263c98 3660 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3661
15e47304 3662 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3663 if (!hdr)
3664 return -1;
3665
9360ffd1
DM		 3666 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3667 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3668 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3669 goto nla_put_failure;
f5ea9120 3670
2ec600d6
LCC		 3671 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3672 if (!sinfoattr)
fd5b74dc 3673 goto nla_put_failure;
9360ffd1
DM		 3674 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3675 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3676 sinfo->connected_time))
3677 goto nla_put_failure;
3678 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3679 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3680 sinfo->inactive_time))
3681 goto nla_put_failure;
42745e03
VK		 3682 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3683 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3684 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3685 (u32)sinfo->rx_bytes))
9360ffd1 3686 goto nla_put_failure;
42745e03 3687 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3688 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3689 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3690 (u32)sinfo->tx_bytes))
3691 goto nla_put_failure;
3692 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3693 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3694 sinfo->rx_bytes))
3695 goto nla_put_failure;
3696 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3697 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3698 sinfo->tx_bytes))
3699 goto nla_put_failure;
3700 if ((sinfo->filled & STATION_INFO_LLID) &&
3701 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3702 goto nla_put_failure;
3703 if ((sinfo->filled & STATION_INFO_PLID) &&
3704 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3705 goto nla_put_failure;
3706 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3707 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3708 sinfo->plink_state))
3709 goto nla_put_failure;
66266b3a
JL		 3710 switch (rdev->wiphy.signal_type) {
3711 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3712 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3713 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3714 sinfo->signal))
3715 goto nla_put_failure;
3716 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3717 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3718 sinfo->signal_avg))
3719 goto nla_put_failure;
66266b3a
JL		 3720 break;
3721 default:
3722 break;
3723 }
119363c7
FF		 3724 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3725 if (!nl80211_put_signal(msg, sinfo->chains,
3726 sinfo->chain_signal,
3727 NL80211_STA_INFO_CHAIN_SIGNAL))
3728 goto nla_put_failure;
3729 }
3730 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3731 if (!nl80211_put_signal(msg, sinfo->chains,
3732 sinfo->chain_signal_avg,
3733 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3734 goto nla_put_failure;
3735 }
420e7fab 3736 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3737 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3738 NL80211_STA_INFO_TX_BITRATE))
3739 goto nla_put_failure;
3740 }
3741 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3742 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3743 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3744 goto nla_put_failure;
420e7fab 3745 }
9360ffd1
DM		 3746 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3747 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3748 sinfo->rx_packets))
3749 goto nla_put_failure;
3750 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3751 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3752 sinfo->tx_packets))
3753 goto nla_put_failure;
3754 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3755 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3756 sinfo->tx_retries))
3757 goto nla_put_failure;
3758 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3759 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3760 sinfo->tx_failed))
3761 goto nla_put_failure;
867d849f
AQ		 3762 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3763 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3764 sinfo->expected_throughput))
3765 goto nla_put_failure;
9360ffd1
DM		 3766 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3767 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3768 sinfo->beacon_loss_count))
3769 goto nla_put_failure;
3b1c5a53
MP		 3770 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3771 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3772 sinfo->local_pm))
3773 goto nla_put_failure;
3774 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3775 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3776 sinfo->peer_pm))
3777 goto nla_put_failure;
3778 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3779 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3780 sinfo->nonpeer_pm))
3781 goto nla_put_failure;
f4263c98
PS		 3782 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3783 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3784 if (!bss_param)
3785 goto nla_put_failure;
3786
9360ffd1
DM		 3787 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3788 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3789 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3790 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3791 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3792 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3793 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3794 sinfo->bss_param.dtim_period) ||
3795 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3796 sinfo->bss_param.beacon_interval))
3797 goto nla_put_failure;
f4263c98
PS		 3798
3799 nla_nest_end(msg, bss_param);
3800 }
9360ffd1
DM		 3801 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3802 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3803 sizeof(struct nl80211_sta_flag_update),
3804 &sinfo->sta_flags))
3805 goto nla_put_failure;
7eab0f64
JL		 3806 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3807 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3808 sinfo->t_offset))
3809 goto nla_put_failure;
2ec600d6 3810 nla_nest_end(msg, sinfoattr);
fd5b74dc 3811
9360ffd1
DM		 3812 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3813 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3814 sinfo->assoc_req_ies))
3815 goto nla_put_failure;
50d3dfb7 3816
fd5b74dc
JB		 3817 return genlmsg_end(msg, hdr);
3818
3819 nla_put_failure:
bc3ed28c
TG		 3820 genlmsg_cancel(msg, hdr);
3821 return -EMSGSIZE;
fd5b74dc
JB		 3822}
3823
2ec600d6 3824static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3825 struct netlink_callback *cb)
2ec600d6 3826{
2ec600d6 3827 struct station_info sinfo;
1b8ec87a 3828 struct cfg80211_registered_device *rdev;
97990a06 3829 struct wireless_dev *wdev;
2ec600d6 3830 u8 mac_addr[ETH_ALEN];
97990a06 3831 int sta_idx = cb->args[2];
2ec600d6 3832 int err;
2ec600d6 3833
1b8ec87a 3834 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3835 if (err)
3836 return err;
bba95fef 3837
97990a06
JB		 3838 if (!wdev->netdev) {
3839 err = -EINVAL;
3840 goto out_err;
3841 }
3842
1b8ec87a 3843 if (!rdev->ops->dump_station) {
eec60b03 3844 err = -EOPNOTSUPP;
bba95fef
JB		 3845 goto out_err;
3846 }
3847
bba95fef 3848 while (1) {
f612cedf 3849 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3850 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3851 mac_addr, &sinfo);
bba95fef
JB		 3852 if (err == -ENOENT)
3853 break;
3854 if (err)
3b85875a 3855 goto out_err;
bba95fef
JB		 3856
3857 if (nl80211_send_station(skb,
15e47304 3858 NETLINK_CB(cb->skb).portid,
bba95fef 3859 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3860 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3861 &sinfo) < 0)
3862 goto out;
3863
3864 sta_idx++;
3865 }
3866
3867
3868 out:
97990a06 3869 cb->args[2] = sta_idx;
bba95fef 3870 err = skb->len;
bba95fef 3871 out_err:
1b8ec87a 3872 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3873
3874 return err;
2ec600d6 3875}
fd5b74dc 3876
5727ef1b
JB		 3877static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3878{
4c476991
JB		 3879 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3880 struct net_device *dev = info->user_ptr[1];
2ec600d6 3881 struct station_info sinfo;
fd5b74dc
JB		 3882 struct sk_buff *msg;
3883 u8 *mac_addr = NULL;
4c476991 3884 int err;
fd5b74dc 3885
2ec600d6 3886 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3887
3888 if (!info->attrs[NL80211_ATTR_MAC])
3889 return -EINVAL;
3890
3891 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3892
4c476991
JB		 3893 if (!rdev->ops->get_station)
3894 return -EOPNOTSUPP;
3b85875a 3895
e35e4d28 3896 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3897 if (err)
4c476991 3898 return err;
2ec600d6 3899
fd2120ca 3900 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3901 if (!msg)
4c476991 3902 return -ENOMEM;
fd5b74dc 3903
15e47304 3904 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3905 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3906 nlmsg_free(msg);
3907 return -ENOBUFS;
3908 }
3b85875a 3909
4c476991 3910 return genlmsg_reply(msg, info);
5727ef1b
JB		 3911}
3912
77ee7c89
JB		 3913int cfg80211_check_station_change(struct wiphy *wiphy,
3914 struct station_parameters *params,
3915 enum cfg80211_station_type statype)
3916{
3917 if (params->listen_interval != -1)
3918 return -EINVAL;
c72e1140
AN		 3919 if (params->aid &&
3920 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3921 return -EINVAL;
3922
3923 /* When you run into this, adjust the code below for the new flag */
3924 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3925
3926 switch (statype) {
eef941e6
TP		 3927 case CFG80211_STA_MESH_PEER_KERNEL:
3928 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3929 /*
3930 * No ignoring the TDLS flag here -- the userspace mesh
3931 * code doesn't have the bug of including TDLS in the
3932 * mask everywhere.
3933 */
3934 if (params->sta_flags_mask &
3935 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3936 BIT(NL80211_STA_FLAG_MFP) |
3937 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3938 return -EINVAL;
3939 break;
3940 case CFG80211_STA_TDLS_PEER_SETUP:
3941 case CFG80211_STA_TDLS_PEER_ACTIVE:
3942 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3943 return -EINVAL;
3944 /* ignore since it can't change */
3945 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3946 break;
3947 default:
3948 /* disallow mesh-specific things */
3949 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3950 return -EINVAL;
3951 if (params->local_pm)
3952 return -EINVAL;
3953 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3954 return -EINVAL;
3955 }
3956
3957 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3958 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3959 /* TDLS can't be set, ... */
3960 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3961 return -EINVAL;
3962 /*
3963 * ... but don't bother the driver with it. This works around
3964 * a hostapd/wpa_supplicant issue -- it always includes the
3965 * TLDS_PEER flag in the mask even for AP mode.
3966 */
3967 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3968 }
3969
3970 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3971 /* reject other things that can't change */
3972 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3973 return -EINVAL;
3974 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3975 return -EINVAL;
3976 if (params->supported_rates)
3977 return -EINVAL;
3978 if (params->ext_capab || params->ht_capa || params->vht_capa)
3979 return -EINVAL;
3980 }
3981
3982 if (statype != CFG80211_STA_AP_CLIENT) {
3983 if (params->vlan)
3984 return -EINVAL;
3985 }
3986
3987 switch (statype) {
3988 case CFG80211_STA_AP_MLME_CLIENT:
3989 /* Use this only for authorizing/unauthorizing a station */
3990 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3991 return -EOPNOTSUPP;
3992 break;
3993 case CFG80211_STA_AP_CLIENT:
3994 /* accept only the listed bits */
3995 if (params->sta_flags_mask &
3996 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3997 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3998 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3999 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4000 BIT(NL80211_STA_FLAG_WME) |
4001 BIT(NL80211_STA_FLAG_MFP)))
4002 return -EINVAL;
4003
4004 /* but authenticated/associated only if driver handles it */
4005 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4006 params->sta_flags_mask &
4007 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4008 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4009 return -EINVAL;
4010 break;
4011 case CFG80211_STA_IBSS:
4012 case CFG80211_STA_AP_STA:
4013 /* reject any changes other than AUTHORIZED */
4014 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4015 return -EINVAL;
4016 break;
4017 case CFG80211_STA_TDLS_PEER_SETUP:
4018 /* reject any changes other than AUTHORIZED or WME */
4019 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4020 BIT(NL80211_STA_FLAG_WME)))
4021 return -EINVAL;
4022 /* force (at least) rates when authorizing */
4023 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4024 !params->supported_rates)
4025 return -EINVAL;
4026 break;
4027 case CFG80211_STA_TDLS_PEER_ACTIVE:
4028 /* reject any changes */
4029 return -EINVAL;
eef941e6 4030 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4031 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4032 return -EINVAL;
4033 break;
eef941e6 4034 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4035 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4036 return -EINVAL;
4037 break;
4038 }
4039
4040 return 0;
4041}
4042EXPORT_SYMBOL(cfg80211_check_station_change);
4043
5727ef1b 4044/*
c258d2de 4045 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4046 */
80b99899
JB		 4047static struct net_device *get_vlan(struct genl_info *info,
4048 struct cfg80211_registered_device *rdev)
5727ef1b 4049{
463d0183 4050 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4051 struct net_device *v;
4052 int ret;
4053
4054 if (!vlanattr)
4055 return NULL;
4056
4057 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4058 if (!v)
4059 return ERR_PTR(-ENODEV);
4060
4061 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4062 ret = -EINVAL;
4063 goto error;
5727ef1b 4064 }
80b99899 4065
77ee7c89
JB		 4066 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4067 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4068 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4069 ret = -EINVAL;
4070 goto error;
4071 }
4072
80b99899
JB		 4073 if (!netif_running(v)) {
4074 ret = -ENETDOWN;
4075 goto error;
4076 }
4077
4078 return v;
4079 error:
4080 dev_put(v);
4081 return ERR_PTR(ret);
5727ef1b
JB		 4082}
4083
94e860f1
JB		 4084static const struct nla_policy
4085nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4086 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4087 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4088};
4089
ff276691
JB		 4090static int nl80211_parse_sta_wme(struct genl_info *info,
4091 struct station_parameters *params)
df881293 4092{
df881293
JM		 4093 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4094 struct nlattr *nla;
4095 int err;
4096
df881293
JM		 4097 /* parse WME attributes if present */
4098 if (!info->attrs[NL80211_ATTR_STA_WME])
4099 return 0;
4100
4101 nla = info->attrs[NL80211_ATTR_STA_WME];
4102 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4103 nl80211_sta_wme_policy);
4104 if (err)
4105 return err;
4106
4107 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4108 params->uapsd_queues = nla_get_u8(
4109 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4110 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4111 return -EINVAL;
4112
4113 if (tb[NL80211_STA_WME_MAX_SP])
4114 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4115
4116 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4117 return -EINVAL;
4118
4119 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4120
4121 return 0;
4122}
4123
c01fc9ad
SD		 4124static int nl80211_parse_sta_channel_info(struct genl_info *info,
4125 struct station_parameters *params)
4126{
4127 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4128 params->supported_channels =
4129 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4130 params->supported_channels_len =
4131 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4132 /*
4133 * Need to include at least one (first channel, number of
4134 * channels) tuple for each subband, and must have proper
4135 * tuples for the rest of the data as well.
4136 */
4137 if (params->supported_channels_len < 2)
4138 return -EINVAL;
4139 if (params->supported_channels_len % 2)
4140 return -EINVAL;
4141 }
4142
4143 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4144 params->supported_oper_classes =
4145 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4146 params->supported_oper_classes_len =
4147 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4148 /*
4149 * The value of the Length field of the Supported Operating
4150 * Classes element is between 2 and 253.
4151 */
4152 if (params->supported_oper_classes_len < 2 ||
4153 params->supported_oper_classes_len > 253)
4154 return -EINVAL;
4155 }
4156 return 0;
4157}
4158
ff276691
JB		 4159static int nl80211_set_station_tdls(struct genl_info *info,
4160 struct station_parameters *params)
4161{
c01fc9ad 4162 int err;
ff276691 4163 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4164 if (info->attrs[NL80211_ATTR_PEER_AID])
4165 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4166 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4167 params->ht_capa =
4168 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4169 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4170 params->vht_capa =
4171 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4172
c01fc9ad
SD		 4173 err = nl80211_parse_sta_channel_info(info, params);
4174 if (err)
4175 return err;
4176
ff276691
JB		 4177 return nl80211_parse_sta_wme(info, params);
4178}
4179
5727ef1b
JB		 4180static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4181{
4c476991 4182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4183 struct net_device *dev = info->user_ptr[1];
5727ef1b 4184 struct station_parameters params;
77ee7c89
JB		 4185 u8 *mac_addr;
4186 int err;
5727ef1b
JB		 4187
4188 memset(&params, 0, sizeof(params));
4189
4190 params.listen_interval = -1;
4191
77ee7c89
JB		 4192 if (!rdev->ops->change_station)
4193 return -EOPNOTSUPP;
4194
5727ef1b
JB		 4195 if (info->attrs[NL80211_ATTR_STA_AID])
4196 return -EINVAL;
4197
4198 if (!info->attrs[NL80211_ATTR_MAC])
4199 return -EINVAL;
4200
4201 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4202
4203 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4204 params.supported_rates =
4205 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4206 params.supported_rates_len =
4207 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4208 }
4209
9d62a986
JM		 4210 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4211 params.capability =
4212 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4213 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4214 }
4215
4216 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4217 params.ext_capab =
4218 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4219 params.ext_capab_len =
4220 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4221 }
4222
df881293 4223 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4224 return -EINVAL;
36aedc90 4225
bdd3ae3d 4226 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4227 return -EINVAL;
4228
f8bacc21 4229 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4230 params.plink_action =
f8bacc21
JB		 4231 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4232 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4233 return -EINVAL;
4234 }
2ec600d6 4235
f8bacc21 4236 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4237 params.plink_state =
f8bacc21
JB		 4238 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4239 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4240 return -EINVAL;
4241 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4242 }
9c3990aa 4243
3b1c5a53
MP		 4244 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4245 enum nl80211_mesh_power_mode pm = nla_get_u32(
4246 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4247
4248 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4249 pm > NL80211_MESH_POWER_MAX)
4250 return -EINVAL;
4251
4252 params.local_pm = pm;
4253 }
4254
77ee7c89
JB		 4255 /* Include parameters for TDLS peer (will check later) */
4256 err = nl80211_set_station_tdls(info, &params);
4257 if (err)
4258 return err;
4259
4260 params.vlan = get_vlan(info, rdev);
4261 if (IS_ERR(params.vlan))
4262 return PTR_ERR(params.vlan);
4263
a97f4424
JB		 4264 switch (dev->ieee80211_ptr->iftype) {
4265 case NL80211_IFTYPE_AP:
4266 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4267 case NL80211_IFTYPE_P2P_GO:
074ac8df 4268 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4269 case NL80211_IFTYPE_STATION:
267335d6 4270 case NL80211_IFTYPE_ADHOC:
a97f4424 4271 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4272 break;
4273 default:
77ee7c89
JB		 4274 err = -EOPNOTSUPP;
4275 goto out_put_vlan;
034d655e
JB		 4276 }
4277
77ee7c89 4278 /* driver will call cfg80211_check_station_change() */
e35e4d28 4279 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4280
77ee7c89 4281 out_put_vlan:
5727ef1b
JB		 4282 if (params.vlan)
4283 dev_put(params.vlan);
3b85875a 4284
5727ef1b
JB		 4285 return err;
4286}
4287
4288static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4289{
4c476991 4290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4291 int err;
4c476991 4292 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4293 struct station_parameters params;
4294 u8 *mac_addr = NULL;
4295
4296 memset(&params, 0, sizeof(params));
4297
984c311b
JB		 4298 if (!rdev->ops->add_station)
4299 return -EOPNOTSUPP;
4300
5727ef1b
JB		 4301 if (!info->attrs[NL80211_ATTR_MAC])
4302 return -EINVAL;
4303
5727ef1b
JB		 4304 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4305 return -EINVAL;
4306
4307 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4308 return -EINVAL;
4309
5e4b6f56
JM		 4310 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4311 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4312 return -EINVAL;
4313
5727ef1b
JB		 4314 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4315 params.supported_rates =
4316 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4317 params.supported_rates_len =
4318 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4319 params.listen_interval =
4320 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4321
3d124ea2 4322 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4323 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4324 else
4325 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4326 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4327 return -EINVAL;
51b50fbe 4328
9d62a986
JM		 4329 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4330 params.capability =
4331 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4332 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4333 }
4334
4335 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4336 params.ext_capab =
4337 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4338 params.ext_capab_len =
4339 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4340 }
4341
36aedc90
JM		 4342 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4343 params.ht_capa =
4344 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4345
f461be3e
MP		 4346 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4347 params.vht_capa =
4348 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4349
60f4a7b1
MK		 4350 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4351 params.opmode_notif_used = true;
4352 params.opmode_notif =
4353 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4354 }
4355
f8bacc21 4356 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4357 params.plink_action =
f8bacc21
JB		 4358 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4359 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4360 return -EINVAL;
4361 }
96b78dff 4362
c01fc9ad
SD		 4363 err = nl80211_parse_sta_channel_info(info, &params);
4364 if (err)
4365 return err;
4366
ff276691
JB		 4367 err = nl80211_parse_sta_wme(info, &params);
4368 if (err)
4369 return err;
bdd90d5e 4370
bdd3ae3d 4371 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4372 return -EINVAL;
4373
77ee7c89
JB		 4374 /* When you run into this, adjust the code below for the new flag */
4375 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4376
bdd90d5e
JB		 4377 switch (dev->ieee80211_ptr->iftype) {
4378 case NL80211_IFTYPE_AP:
4379 case NL80211_IFTYPE_AP_VLAN:
4380 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4381 /* ignore WME attributes if iface/sta is not capable */
4382 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4383 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4384 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4385
bdd90d5e 4386 /* TDLS peers cannot be added */
3d124ea2
JM		 4387 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4388 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4389 return -EINVAL;
bdd90d5e
JB		 4390 /* but don't bother the driver with it */
4391 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4392
d582cffb
JB		 4393 /* allow authenticated/associated only if driver handles it */
4394 if (!(rdev->wiphy.features &
4395 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4396 params.sta_flags_mask &
4397 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4398 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4399 return -EINVAL;
4400
bdd90d5e
JB		 4401 /* must be last in here for error handling */
4402 params.vlan = get_vlan(info, rdev);
4403 if (IS_ERR(params.vlan))
4404 return PTR_ERR(params.vlan);
4405 break;
4406 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4407 /* ignore uAPSD data */
4408 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4409
d582cffb
JB		 4410 /* associated is disallowed */
4411 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4412 return -EINVAL;
bdd90d5e 4413 /* TDLS peers cannot be added */
3d124ea2
JM		 4414 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4415 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4416 return -EINVAL;
4417 break;
4418 case NL80211_IFTYPE_STATION:
93d08f0b 4419 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4420 /* ignore uAPSD data */
4421 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4422
77ee7c89
JB		 4423 /* these are disallowed */
4424 if (params.sta_flags_mask &
4425 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4426 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4427 return -EINVAL;
bdd90d5e
JB		 4428 /* Only TDLS peers can be added */
4429 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4430 return -EINVAL;
4431 /* Can only add if TDLS ... */
4432 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4433 return -EOPNOTSUPP;
4434 /* ... with external setup is supported */
4435 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4436 return -EOPNOTSUPP;
77ee7c89
JB		 4437 /*
4438 * Older wpa_supplicant versions always mark the TDLS peer
4439 * as authorized, but it shouldn't yet be.
4440 */
4441 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4442 break;
4443 default:
4444 return -EOPNOTSUPP;
c75786c9
EP		 4445 }
4446
bdd90d5e 4447 /* be aware of params.vlan when changing code here */
5727ef1b 4448
e35e4d28 4449 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4450
5727ef1b
JB		 4451 if (params.vlan)
4452 dev_put(params.vlan);
5727ef1b
JB		 4453 return err;
4454}
4455
4456static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4457{
4c476991
JB		 4458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4459 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4460 struct station_del_parameters params;
4461
4462 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4463
4464 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4465 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4466
e80cf853 4467 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4468 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4469 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4470 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4471 return -EINVAL;
5727ef1b 4472
4c476991
JB		 4473 if (!rdev->ops->del_station)
4474 return -EOPNOTSUPP;
3b85875a 4475
98856866
JM		 4476 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4477 params.subtype =
4478 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4479 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4480 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4481 return -EINVAL;
4482 } else {
4483 /* Default to Deauthentication frame */
4484 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4485 }
4486
4487 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4488 params.reason_code =
4489 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4490 if (params.reason_code == 0)
4491 return -EINVAL; /* 0 is reserved */
4492 } else {
4493 /* Default to reason code 2 */
4494 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4495 }
4496
89c771e5 4497 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4498}
4499
15e47304 4500static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4501 int flags, struct net_device *dev,
4502 u8 *dst, u8 *next_hop,
4503 struct mpath_info *pinfo)
4504{
4505 void *hdr;
4506 struct nlattr *pinfoattr;
4507
1ef4c850 4508 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4509 if (!hdr)
4510 return -1;
4511
9360ffd1
DM		 4512 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4513 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4514 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4515 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4516 goto nla_put_failure;
f5ea9120 4517
2ec600d6
LCC		 4518 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4519 if (!pinfoattr)
4520 goto nla_put_failure;
9360ffd1
DM		 4521 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4522 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4523 pinfo->frame_qlen))
4524 goto nla_put_failure;
4525 if (((pinfo->filled & MPATH_INFO_SN) &&
4526 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4527 ((pinfo->filled & MPATH_INFO_METRIC) &&
4528 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4529 pinfo->metric)) ||
4530 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4531 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4532 pinfo->exptime)) ||
4533 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4534 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4535 pinfo->flags)) ||
4536 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4537 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4538 pinfo->discovery_timeout)) ||
4539 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4540 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4541 pinfo->discovery_retries)))
4542 goto nla_put_failure;
2ec600d6
LCC		 4543
4544 nla_nest_end(msg, pinfoattr);
4545
4546 return genlmsg_end(msg, hdr);
4547
4548 nla_put_failure:
bc3ed28c
TG		 4549 genlmsg_cancel(msg, hdr);
4550 return -EMSGSIZE;
2ec600d6
LCC		 4551}
4552
4553static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4554 struct netlink_callback *cb)
2ec600d6 4555{
2ec600d6 4556 struct mpath_info pinfo;
1b8ec87a 4557 struct cfg80211_registered_device *rdev;
97990a06 4558 struct wireless_dev *wdev;
2ec600d6
LCC		 4559 u8 dst[ETH_ALEN];
4560 u8 next_hop[ETH_ALEN];
97990a06 4561 int path_idx = cb->args[2];
2ec600d6 4562 int err;
2ec600d6 4563
1b8ec87a 4564 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4565 if (err)
4566 return err;
bba95fef 4567
1b8ec87a 4568 if (!rdev->ops->dump_mpath) {
eec60b03 4569 err = -EOPNOTSUPP;
bba95fef
JB		 4570 goto out_err;
4571 }
4572
97990a06 4573 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4574 err = -EOPNOTSUPP;
0448b5fc 4575 goto out_err;
eec60b03
JM		 4576 }
4577
bba95fef 4578 while (1) {
1b8ec87a 4579 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4580 next_hop, &pinfo);
bba95fef 4581 if (err == -ENOENT)
2ec600d6 4582 break;
bba95fef 4583 if (err)
3b85875a 4584 goto out_err;
2ec600d6 4585
15e47304 4586 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4587 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4588 wdev->netdev, dst, next_hop,
bba95fef
JB		 4589 &pinfo) < 0)
4590 goto out;
2ec600d6 4591
bba95fef 4592 path_idx++;
2ec600d6 4593 }
2ec600d6 4594
2ec600d6 4595
bba95fef 4596 out:
97990a06 4597 cb->args[2] = path_idx;
bba95fef 4598 err = skb->len;
bba95fef 4599 out_err:
1b8ec87a 4600 nl80211_finish_wdev_dump(rdev);
bba95fef 4601 return err;
2ec600d6
LCC		 4602}
4603
4604static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4605{
4c476991 4606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4607 int err;
4c476991 4608 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4609 struct mpath_info pinfo;
4610 struct sk_buff *msg;
4611 u8 *dst = NULL;
4612 u8 next_hop[ETH_ALEN];
4613
4614 memset(&pinfo, 0, sizeof(pinfo));
4615
4616 if (!info->attrs[NL80211_ATTR_MAC])
4617 return -EINVAL;
4618
4619 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4620
4c476991
JB		 4621 if (!rdev->ops->get_mpath)
4622 return -EOPNOTSUPP;
2ec600d6 4623
4c476991
JB		 4624 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4625 return -EOPNOTSUPP;
eec60b03 4626
e35e4d28 4627 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4628 if (err)
4c476991 4629 return err;
2ec600d6 4630
fd2120ca 4631 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4632 if (!msg)
4c476991 4633 return -ENOMEM;
2ec600d6 4634
15e47304 4635 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4636 dev, dst, next_hop, &pinfo) < 0) {
4637 nlmsg_free(msg);
4638 return -ENOBUFS;
4639 }
3b85875a 4640
4c476991 4641 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4642}
4643
4644static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4645{
4c476991
JB		 4646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4647 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4648 u8 *dst = NULL;
4649 u8 *next_hop = NULL;
4650
4651 if (!info->attrs[NL80211_ATTR_MAC])
4652 return -EINVAL;
4653
4654 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4655 return -EINVAL;
4656
4657 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4658 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4659
4c476991
JB		 4660 if (!rdev->ops->change_mpath)
4661 return -EOPNOTSUPP;
35a8efe1 4662
4c476991
JB		 4663 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4664 return -EOPNOTSUPP;
2ec600d6 4665
e35e4d28 4666 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4667}
4c476991 4668
2ec600d6
LCC		 4669static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4670{
4c476991
JB		 4671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4672 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4673 u8 *dst = NULL;
4674 u8 *next_hop = NULL;
4675
4676 if (!info->attrs[NL80211_ATTR_MAC])
4677 return -EINVAL;
4678
4679 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4680 return -EINVAL;
4681
4682 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4683 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4684
4c476991
JB		 4685 if (!rdev->ops->add_mpath)
4686 return -EOPNOTSUPP;
35a8efe1 4687
4c476991
JB		 4688 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4689 return -EOPNOTSUPP;
2ec600d6 4690
e35e4d28 4691 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4692}
4693
4694static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4695{
4c476991
JB		 4696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4697 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4698 u8 *dst = NULL;
4699
4700 if (info->attrs[NL80211_ATTR_MAC])
4701 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4702
4c476991
JB		 4703 if (!rdev->ops->del_mpath)
4704 return -EOPNOTSUPP;
3b85875a 4705
e35e4d28 4706 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4707}
4708
66be7d2b
HR		 4709static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4710{
4711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4712 int err;
4713 struct net_device *dev = info->user_ptr[1];
4714 struct mpath_info pinfo;
4715 struct sk_buff *msg;
4716 u8 *dst = NULL;
4717 u8 mpp[ETH_ALEN];
4718
4719 memset(&pinfo, 0, sizeof(pinfo));
4720
4721 if (!info->attrs[NL80211_ATTR_MAC])
4722 return -EINVAL;
4723
4724 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4725
4726 if (!rdev->ops->get_mpp)
4727 return -EOPNOTSUPP;
4728
4729 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4730 return -EOPNOTSUPP;
4731
4732 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4733 if (err)
4734 return err;
4735
4736 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4737 if (!msg)
4738 return -ENOMEM;
4739
4740 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4741 dev, dst, mpp, &pinfo) < 0) {
4742 nlmsg_free(msg);
4743 return -ENOBUFS;
4744 }
4745
4746 return genlmsg_reply(msg, info);
4747}
4748
4749static int nl80211_dump_mpp(struct sk_buff *skb,
4750 struct netlink_callback *cb)
4751{
4752 struct mpath_info pinfo;
4753 struct cfg80211_registered_device *rdev;
4754 struct wireless_dev *wdev;
4755 u8 dst[ETH_ALEN];
4756 u8 mpp[ETH_ALEN];
4757 int path_idx = cb->args[2];
4758 int err;
4759
4760 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4761 if (err)
4762 return err;
4763
4764 if (!rdev->ops->dump_mpp) {
4765 err = -EOPNOTSUPP;
4766 goto out_err;
4767 }
4768
4769 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4770 err = -EOPNOTSUPP;
4771 goto out_err;
4772 }
4773
4774 while (1) {
4775 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4776 mpp, &pinfo);
4777 if (err == -ENOENT)
4778 break;
4779 if (err)
4780 goto out_err;
4781
4782 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4783 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4784 wdev->netdev, dst, mpp,
4785 &pinfo) < 0)
4786 goto out;
4787
4788 path_idx++;
4789 }
4790
4791 out:
4792 cb->args[2] = path_idx;
4793 err = skb->len;
4794 out_err:
4795 nl80211_finish_wdev_dump(rdev);
4796 return err;
4797}
4798
9f1ba906
JM		 4799static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4800{
4c476991
JB		 4801 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4802 struct net_device *dev = info->user_ptr[1];
c56589ed 4803 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4804 struct bss_parameters params;
c56589ed 4805 int err;
9f1ba906
JM		 4806
4807 memset(&params, 0, sizeof(params));
4808 /* default to not changing parameters */
4809 params.use_cts_prot = -1;
4810 params.use_short_preamble = -1;
4811 params.use_short_slot_time = -1;
fd8aaaf3 4812 params.ap_isolate = -1;
50b12f59 4813 params.ht_opmode = -1;
53cabad7
JB		 4814 params.p2p_ctwindow = -1;
4815 params.p2p_opp_ps = -1;
9f1ba906
JM		 4816
4817 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4818 params.use_cts_prot =
4819 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4820 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4821 params.use_short_preamble =
4822 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4823 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4824 params.use_short_slot_time =
4825 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4826 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4827 params.basic_rates =
4828 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4829 params.basic_rates_len =
4830 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4831 }
fd8aaaf3
FF		 4832 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4833 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4834 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4835 params.ht_opmode =
4836 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4837
53cabad7
JB		 4838 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4839 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4840 return -EINVAL;
4841 params.p2p_ctwindow =
4842 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4843 if (params.p2p_ctwindow < 0)
4844 return -EINVAL;
4845 if (params.p2p_ctwindow != 0 &&
4846 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4847 return -EINVAL;
4848 }
4849
4850 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4851 u8 tmp;
4852
4853 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4854 return -EINVAL;
4855 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4856 if (tmp > 1)
4857 return -EINVAL;
4858 params.p2p_opp_ps = tmp;
4859 if (params.p2p_opp_ps &&
4860 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4861 return -EINVAL;
4862 }
4863
4c476991
JB		 4864 if (!rdev->ops->change_bss)
4865 return -EOPNOTSUPP;
9f1ba906 4866
074ac8df 4867 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4868 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4869 return -EOPNOTSUPP;
3b85875a 4870
c56589ed
SW		 4871 wdev_lock(wdev);
4872 err = rdev_change_bss(rdev, dev, &params);
4873 wdev_unlock(wdev);
4874
4875 return err;
9f1ba906
JM		 4876}
4877
b54452b0 4878static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4879 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4880 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4881 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4882 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4883 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4884 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4885 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4886};
4887
4888static int parse_reg_rule(struct nlattr *tb[],
4889 struct ieee80211_reg_rule *reg_rule)
4890{
4891 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4892 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4893
4894 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4895 return -EINVAL;
4896 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4897 return -EINVAL;
4898 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4899 return -EINVAL;
b0dfd2ea
JD		 4900 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4901 return -EINVAL;
b2e1b302
LR		 4902 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4903 return -EINVAL;
4904
4905 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4906
4907 freq_range->start_freq_khz =
4908 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4909 freq_range->end_freq_khz =
4910 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4911 freq_range->max_bandwidth_khz =
4912 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4913
4914 power_rule->max_eirp =
4915 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4916
4917 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4918 power_rule->max_antenna_gain =
4919 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4920
089027e5
JD		 4921 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4922 reg_rule->dfs_cac_ms =
4923 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4924
b2e1b302
LR		 4925 return 0;
4926}
4927
4928static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4929{
b2e1b302 4930 char *data = NULL;
57b5ce07 4931 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4932
80778f18
LR		 4933 /*
4934 * You should only get this when cfg80211 hasn't yet initialized
4935 * completely when built-in to the kernel right between the time
4936 * window between nl80211_init() and regulatory_init(), if that is
4937 * even possible.
4938 */
458f4f9e 4939 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4940 return -EINPROGRESS;
80778f18 4941
57b5ce07
LR		 4942 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4943 user_reg_hint_type =
4944 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4945 else
4946 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4947
4948 switch (user_reg_hint_type) {
4949 case NL80211_USER_REG_HINT_USER:
4950 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4951 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4952 return -EINVAL;
4953
4954 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4955 return regulatory_hint_user(data, user_reg_hint_type);
4956 case NL80211_USER_REG_HINT_INDOOR:
4957 return regulatory_hint_indoor_user();
57b5ce07
LR		 4958 default:
4959 return -EINVAL;
4960 }
b2e1b302
LR		 4961}
4962
24bdd9f4 4963static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4964 struct genl_info *info)
93da9cc1 4965{
4c476991 4966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4967 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4968 struct wireless_dev *wdev = dev->ieee80211_ptr;
4969 struct mesh_config cur_params;
4970 int err = 0;
93da9cc1 4971 void *hdr;
4972 struct nlattr *pinfoattr;
4973 struct sk_buff *msg;
4974
29cbe68c
JB		 4975 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4976 return -EOPNOTSUPP;
4977
24bdd9f4 4978 if (!rdev->ops->get_mesh_config)
4c476991 4979 return -EOPNOTSUPP;
f3f92586 4980
29cbe68c
JB		 4981 wdev_lock(wdev);
4982 /* If not connected, get default parameters */
4983 if (!wdev->mesh_id_len)
4984 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4985 else
e35e4d28 4986 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4987 wdev_unlock(wdev);
4988
93da9cc1 4989 if (err)
4c476991 4990 return err;
93da9cc1 4991
4992 /* Draw up a netlink message to send back */
fd2120ca 4993 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4994 if (!msg)
4995 return -ENOMEM;
15e47304 4996 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4997 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4998 if (!hdr)
efe1cf0c 4999 goto out;
24bdd9f4 5000 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5001 if (!pinfoattr)
5002 goto nla_put_failure;
9360ffd1
DM		 5003 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5004 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5005 cur_params.dot11MeshRetryTimeout) ||
5006 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5007 cur_params.dot11MeshConfirmTimeout) ||
5008 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5009 cur_params.dot11MeshHoldingTimeout) ||
5010 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5011 cur_params.dot11MeshMaxPeerLinks) ||
5012 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5013 cur_params.dot11MeshMaxRetries) ||
5014 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5015 cur_params.dot11MeshTTL) ||
5016 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5017 cur_params.element_ttl) ||
5018 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5019 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5020 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5021 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5022 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5023 cur_params.dot11MeshHWMPmaxPREQretries) ||
5024 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5025 cur_params.path_refresh_time) ||
5026 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5027 cur_params.min_discovery_timeout) ||
5028 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5029 cur_params.dot11MeshHWMPactivePathTimeout) ||
5030 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5031 cur_params.dot11MeshHWMPpreqMinInterval) ||
5032 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5033 cur_params.dot11MeshHWMPperrMinInterval) ||
5034 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5035 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5036 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5037 cur_params.dot11MeshHWMPRootMode) ||
5038 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5039 cur_params.dot11MeshHWMPRannInterval) ||
5040 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5041 cur_params.dot11MeshGateAnnouncementProtocol) ||
5042 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5043 cur_params.dot11MeshForwarding) ||
5044 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5045 cur_params.rssi_threshold) ||
5046 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5047 cur_params.ht_opmode) ||
5048 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5049 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5050 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5051 cur_params.dot11MeshHWMProotInterval) ||
5052 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5053 cur_params.dot11MeshHWMPconfirmationInterval) ||
5054 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5055 cur_params.power_mode) ||
5056 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5057 cur_params.dot11MeshAwakeWindowDuration) ||
5058 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5059 cur_params.plink_timeout))
9360ffd1 5060 goto nla_put_failure;
93da9cc1 5061 nla_nest_end(msg, pinfoattr);
5062 genlmsg_end(msg, hdr);
4c476991 5063 return genlmsg_reply(msg, info);
93da9cc1 5064
3b85875a 5065 nla_put_failure:
93da9cc1 5066 genlmsg_cancel(msg, hdr);
efe1cf0c 5067 out:
d080e275 5068 nlmsg_free(msg);
4c476991 5069 return -ENOBUFS;
93da9cc1 5070}
5071
b54452b0 5072static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5073 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5074 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5075 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5076 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5077 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5078 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5079 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5080 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5081 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5082 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5083 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5084 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5085 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5086 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5087 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5088 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5089 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5090 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5091 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5092 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5093 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5094 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5095 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5096 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5097 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5098 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5099 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5100 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5101};
5102
c80d545d
JC		 5103static const struct nla_policy
5104 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5105 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5106 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5107 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5108 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5109 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5110 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5111 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5112 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5113 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5114};
5115
24bdd9f4 5116static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5117 struct mesh_config *cfg,
5118 u32 *mask_out)
93da9cc1 5119{
93da9cc1 5120 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5121 u32 mask = 0;
93da9cc1 5122
ea54fba2
MP		 5123#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5124do { \
5125 if (tb[attr]) { \
5126 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5127 return -EINVAL; \
5128 cfg->param = fn(tb[attr]); \
5129 mask |= (1 << (attr - 1)); \
5130 } \
5131} while (0)
bd90fdcc
JB		 5132
5133
24bdd9f4 5134 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5135 return -EINVAL;
5136 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5137 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5138 nl80211_meshconf_params_policy))
93da9cc1 5139 return -EINVAL;
5140
93da9cc1 5141 /* This makes sure that there aren't more than 32 mesh config
5142 * parameters (otherwise our bitfield scheme would not work.) */
5143 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5144
5145 /* Fill in the params struct */
ea54fba2 5146 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5147 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5148 nla_get_u16);
ea54fba2 5149 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5150 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5151 nla_get_u16);
ea54fba2 5152 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5153 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5154 nla_get_u16);
ea54fba2 5155 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5156 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5157 nla_get_u16);
ea54fba2 5158 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5159 mask, NL80211_MESHCONF_MAX_RETRIES,
5160 nla_get_u8);
ea54fba2 5161 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5162 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5163 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5164 mask, NL80211_MESHCONF_ELEMENT_TTL,
5165 nla_get_u8);
ea54fba2 5166 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5167 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5168 nla_get_u8);
ea54fba2
MP		 5169 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5170 1, 255, mask,
a4f606ea
CYY		 5171 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5172 nla_get_u32);
ea54fba2 5173 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5174 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5175 nla_get_u8);
ea54fba2 5176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5177 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5178 nla_get_u32);
ea54fba2 5179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5180 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5181 nla_get_u16);
ea54fba2
MP		 5182 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5183 1, 65535, mask,
a4f606ea
CYY		 5184 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5185 nla_get_u32);
93da9cc1 5186 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5187 1, 65535, mask,
5188 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5189 nla_get_u16);
dca7e943 5190 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5191 1, 65535, mask,
5192 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5193 nla_get_u16);
93da9cc1 5194 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5195 dot11MeshHWMPnetDiameterTraversalTime,
5196 1, 65535, mask,
a4f606ea
CYY		 5197 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5198 nla_get_u16);
ea54fba2
MP		 5199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5200 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5201 nla_get_u8);
5202 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5203 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5204 nla_get_u16);
63c5723b 5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5206 dot11MeshGateAnnouncementProtocol, 0, 1,
5207 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5208 nla_get_u8);
ea54fba2 5209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5210 mask, NL80211_MESHCONF_FORWARDING,
5211 nla_get_u8);
83374fe9 5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5213 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5214 nla_get_s32);
ea54fba2 5215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5216 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5217 nla_get_u16);
5218 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5219 1, 65535, mask,
ac1073a6
CYY		 5220 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5221 nla_get_u32);
ea54fba2 5222 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5223 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5224 nla_get_u16);
5225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5226 dot11MeshHWMPconfirmationInterval,
5227 1, 65535, mask,
728b19e5 5228 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5229 nla_get_u16);
3b1c5a53
MP		 5230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5231 NL80211_MESH_POWER_ACTIVE,
5232 NL80211_MESH_POWER_MAX,
5233 mask, NL80211_MESHCONF_POWER_MODE,
5234 nla_get_u32);
5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5236 0, 65535, mask,
5237 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5239 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5240 nla_get_u32);
bd90fdcc
JB		 5241 if (mask_out)
5242 *mask_out = mask;
c80d545d 5243
bd90fdcc
JB		 5244 return 0;
5245
5246#undef FILL_IN_MESH_PARAM_IF_SET
5247}
5248
c80d545d
JC		 5249static int nl80211_parse_mesh_setup(struct genl_info *info,
5250 struct mesh_setup *setup)
5251{
bb2798d4 5252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5253 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5254
5255 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5256 return -EINVAL;
5257 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5258 info->attrs[NL80211_ATTR_MESH_SETUP],
5259 nl80211_mesh_setup_params_policy))
5260 return -EINVAL;
5261
d299a1f2
JC		 5262 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5263 setup->sync_method =
5264 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5265 IEEE80211_SYNC_METHOD_VENDOR :
5266 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5267
c80d545d
JC		 5268 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5269 setup->path_sel_proto =
5270 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5271 IEEE80211_PATH_PROTOCOL_VENDOR :
5272 IEEE80211_PATH_PROTOCOL_HWMP;
5273
5274 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5275 setup->path_metric =
5276 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5277 IEEE80211_PATH_METRIC_VENDOR :
5278 IEEE80211_PATH_METRIC_AIRTIME;
5279
581a8b0f
JC		 5280
5281 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5282 struct nlattr *ieattr =
581a8b0f 5283 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5284 if (!is_valid_ie_attr(ieattr))
5285 return -EINVAL;
581a8b0f
JC		 5286 setup->ie = nla_data(ieattr);
5287 setup->ie_len = nla_len(ieattr);
c80d545d 5288 }
bb2798d4
TP		 5289 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5290 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5291 return -EINVAL;
5292 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5293 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5294 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5295 if (setup->is_secure)
5296 setup->user_mpm = true;
c80d545d 5297
6e16d90b
CT		 5298 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5299 if (!setup->user_mpm)
5300 return -EINVAL;
5301 setup->auth_id =
5302 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5303 }
5304
c80d545d
JC		 5305 return 0;
5306}
5307
24bdd9f4 5308static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5309 struct genl_info *info)
bd90fdcc
JB		 5310{
5311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5312 struct net_device *dev = info->user_ptr[1];
29cbe68c 5313 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5314 struct mesh_config cfg;
5315 u32 mask;
5316 int err;
5317
29cbe68c
JB		 5318 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5319 return -EOPNOTSUPP;
5320
24bdd9f4 5321 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5322 return -EOPNOTSUPP;
5323
24bdd9f4 5324 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5325 if (err)
5326 return err;
5327
29cbe68c
JB		 5328 wdev_lock(wdev);
5329 if (!wdev->mesh_id_len)
5330 err = -ENOLINK;
5331
5332 if (!err)
e35e4d28 5333 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5334
5335 wdev_unlock(wdev);
5336
5337 return err;
93da9cc1 5338}
5339
ad30ca2c
AN		 5340static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5341 struct sk_buff *msg)
f130347c 5342{
f130347c
LR		 5343 struct nlattr *nl_reg_rules;
5344 unsigned int i;
f130347c 5345
458f4f9e
JB		 5346 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5347 (regdom->dfs_region &&
5348 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5349 goto nla_put_failure;
458f4f9e 5350
f130347c
LR		 5351 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5352 if (!nl_reg_rules)
ad30ca2c 5353 goto nla_put_failure;
f130347c 5354
458f4f9e 5355 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5356 struct nlattr *nl_reg_rule;
5357 const struct ieee80211_reg_rule *reg_rule;
5358 const struct ieee80211_freq_range *freq_range;
5359 const struct ieee80211_power_rule *power_rule;
97524820 5360 unsigned int max_bandwidth_khz;
f130347c 5361
458f4f9e 5362 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5363 freq_range = &reg_rule->freq_range;
5364 power_rule = &reg_rule->power_rule;
5365
5366 nl_reg_rule = nla_nest_start(msg, i);
5367 if (!nl_reg_rule)
ad30ca2c 5368 goto nla_put_failure;
f130347c 5369
97524820
JD		 5370 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5371 if (!max_bandwidth_khz)
5372 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5373 reg_rule);
5374
9360ffd1
DM		 5375 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5376 reg_rule->flags) ||
5377 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5378 freq_range->start_freq_khz) ||
5379 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5380 freq_range->end_freq_khz) ||
5381 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5382 max_bandwidth_khz) ||
9360ffd1
DM		 5383 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5384 power_rule->max_antenna_gain) ||
5385 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5386 power_rule->max_eirp) ||
5387 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5388 reg_rule->dfs_cac_ms))
ad30ca2c 5389 goto nla_put_failure;
f130347c
LR		 5390
5391 nla_nest_end(msg, nl_reg_rule);
5392 }
5393
5394 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5395 return 0;
5396
5397nla_put_failure:
5398 return -EMSGSIZE;
5399}
5400
5401static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5402{
5403 const struct ieee80211_regdomain *regdom = NULL;
5404 struct cfg80211_registered_device *rdev;
5405 struct wiphy *wiphy = NULL;
5406 struct sk_buff *msg;
5407 void *hdr;
5408
5409 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5410 if (!msg)
5411 return -ENOBUFS;
5412
5413 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5414 NL80211_CMD_GET_REG);
5415 if (!hdr)
5416 goto put_failure;
5417
5418 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5419 bool self_managed;
5420
ad30ca2c
AN		 5421 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5422 if (IS_ERR(rdev)) {
5423 nlmsg_free(msg);
5424 return PTR_ERR(rdev);
5425 }
5426
5427 wiphy = &rdev->wiphy;
1bdd716c
AN		 5428 self_managed = wiphy->regulatory_flags &
5429 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5430 regdom = get_wiphy_regdom(wiphy);
5431
1bdd716c
AN		 5432 /* a self-managed-reg device must have a private regdom */
5433 if (WARN_ON(!regdom && self_managed)) {
5434 nlmsg_free(msg);
5435 return -EINVAL;
5436 }
5437
ad30ca2c
AN		 5438 if (regdom &&
5439 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5440 goto nla_put_failure;
5441 }
5442
5443 if (!wiphy && reg_last_request_cell_base() &&
5444 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5445 NL80211_USER_REG_HINT_CELL_BASE))
5446 goto nla_put_failure;
5447
5448 rcu_read_lock();
5449
5450 if (!regdom)
5451 regdom = rcu_dereference(cfg80211_regdomain);
5452
5453 if (nl80211_put_regdom(regdom, msg))
5454 goto nla_put_failure_rcu;
5455
5456 rcu_read_unlock();
f130347c
LR		 5457
5458 genlmsg_end(msg, hdr);
5fe231e8 5459 return genlmsg_reply(msg, info);
f130347c 5460
458f4f9e
JB		 5461nla_put_failure_rcu:
5462 rcu_read_unlock();
f130347c
LR		 5463nla_put_failure:
5464 genlmsg_cancel(msg, hdr);
efe1cf0c 5465put_failure:
d080e275 5466 nlmsg_free(msg);
5fe231e8 5467 return -EMSGSIZE;
f130347c
LR		 5468}
5469
ad30ca2c
AN		 5470static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5471 u32 seq, int flags, struct wiphy *wiphy,
5472 const struct ieee80211_regdomain *regdom)
5473{
5474 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5475 NL80211_CMD_GET_REG);
5476
5477 if (!hdr)
5478 return -1;
5479
5480 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5481
5482 if (nl80211_put_regdom(regdom, msg))
5483 goto nla_put_failure;
5484
5485 if (!wiphy && reg_last_request_cell_base() &&
5486 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5487 NL80211_USER_REG_HINT_CELL_BASE))
5488 goto nla_put_failure;
5489
5490 if (wiphy &&
5491 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5492 goto nla_put_failure;
5493
1bdd716c
AN		 5494 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5495 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5496 goto nla_put_failure;
5497
ad30ca2c
AN		 5498 return genlmsg_end(msg, hdr);
5499
5500nla_put_failure:
5501 genlmsg_cancel(msg, hdr);
5502 return -EMSGSIZE;
5503}
5504
5505static int nl80211_get_reg_dump(struct sk_buff *skb,
5506 struct netlink_callback *cb)
5507{
5508 const struct ieee80211_regdomain *regdom = NULL;
5509 struct cfg80211_registered_device *rdev;
5510 int err, reg_idx, start = cb->args[2];
5511
5512 rtnl_lock();
5513
5514 if (cfg80211_regdomain && start == 0) {
5515 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5516 NLM_F_MULTI, NULL,
5517 rtnl_dereference(cfg80211_regdomain));
5518 if (err < 0)
5519 goto out_err;
5520 }
5521
5522 /* the global regdom is idx 0 */
5523 reg_idx = 1;
5524 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5525 regdom = get_wiphy_regdom(&rdev->wiphy);
5526 if (!regdom)
5527 continue;
5528
5529 if (++reg_idx <= start)
5530 continue;
5531
5532 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5533 NLM_F_MULTI, &rdev->wiphy, regdom);
5534 if (err < 0) {
5535 reg_idx--;
5536 break;
5537 }
5538 }
5539
5540 cb->args[2] = reg_idx;
5541 err = skb->len;
5542out_err:
5543 rtnl_unlock();
5544 return err;
5545}
5546
b2e1b302
LR		 5547static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5548{
5549 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5550 struct nlattr *nl_reg_rule;
ea372c54
JB		 5551 char *alpha2;
5552 int rem_reg_rules, r;
b2e1b302 5553 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5554 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5555 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5556
5557 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5558 return -EINVAL;
5559
5560 if (!info->attrs[NL80211_ATTR_REG_RULES])
5561 return -EINVAL;
5562
5563 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5564
8b60b078
LR		 5565 if (info->attrs[NL80211_ATTR_DFS_REGION])
5566 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5567
b2e1b302 5568 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5569 rem_reg_rules) {
b2e1b302
LR		 5570 num_rules++;
5571 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5572 return -EINVAL;
b2e1b302
LR		 5573 }
5574
e438768f
LR		 5575 if (!reg_is_valid_request(alpha2))
5576 return -EINVAL;
5577
b2e1b302 5578 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5579 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5580
5581 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5582 if (!rd)
5583 return -ENOMEM;
b2e1b302
LR		 5584
5585 rd->n_reg_rules = num_rules;
5586 rd->alpha2[0] = alpha2[0];
5587 rd->alpha2[1] = alpha2[1];
5588
8b60b078
LR		 5589 /*
5590 * Disable DFS master mode if the DFS region was
5591 * not supported or known on this kernel.
5592 */
5593 if (reg_supported_dfs_region(dfs_region))
5594 rd->dfs_region = dfs_region;
5595
b2e1b302 5596 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5597 rem_reg_rules) {
ae811e21
JB		 5598 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5599 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5600 reg_rule_policy);
5601 if (r)
5602 goto bad_reg;
b2e1b302
LR		 5603 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5604 if (r)
5605 goto bad_reg;
5606
5607 rule_idx++;
5608
d0e18f83
LR		 5609 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5610 r = -EINVAL;
b2e1b302 5611 goto bad_reg;
d0e18f83 5612 }
b2e1b302
LR		 5613 }
5614
b2e1b302 5615 r = set_regdom(rd);
6913b49a 5616 /* set_regdom took ownership */
1a919318 5617 rd = NULL;
b2e1b302 5618
d2372b31 5619 bad_reg:
b2e1b302 5620 kfree(rd);
d0e18f83 5621 return r;
b2e1b302
LR		 5622}
5623
83f5e2cf
JB		 5624static int validate_scan_freqs(struct nlattr *freqs)
5625{
5626 struct nlattr *attr1, *attr2;
5627 int n_channels = 0, tmp1, tmp2;
5628
5629 nla_for_each_nested(attr1, freqs, tmp1) {
5630 n_channels++;
5631 /*
5632 * Some hardware has a limited channel list for
5633 * scanning, and it is pretty much nonsensical
5634 * to scan for a channel twice, so disallow that
5635 * and don't require drivers to check that the
5636 * channel list they get isn't longer than what
5637 * they can scan, as long as they can scan all
5638 * the channels they registered at once.
5639 */
5640 nla_for_each_nested(attr2, freqs, tmp2)
5641 if (attr1 != attr2 &&
5642 nla_get_u32(attr1) == nla_get_u32(attr2))
5643 return 0;
5644 }
5645
5646 return n_channels;
5647}
5648
ad2b26ab
JB		 5649static int nl80211_parse_random_mac(struct nlattr **attrs,
5650 u8 *mac_addr, u8 *mac_addr_mask)
5651{
5652 int i;
5653
5654 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5655 memset(mac_addr, 0, ETH_ALEN);
5656 memset(mac_addr_mask, 0, ETH_ALEN);
5657 mac_addr[0] = 0x2;
5658 mac_addr_mask[0] = 0x3;
5659
5660 return 0;
5661 }
5662
5663 /* need both or none */
5664 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5665 return -EINVAL;
5666
5667 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5668 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5669
5670 /* don't allow or configure an mcast address */
5671 if (!is_multicast_ether_addr(mac_addr_mask) ||
5672 is_multicast_ether_addr(mac_addr))
5673 return -EINVAL;
5674
5675 /*
5676 * allow users to pass a MAC address that has bits set outside
5677 * of the mask, but don't bother drivers with having to deal
5678 * with such bits
5679 */
5680 for (i = 0; i < ETH_ALEN; i++)
5681 mac_addr[i] &= mac_addr_mask[i];
5682
5683 return 0;
5684}
5685
2a519311
JB		 5686static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5687{
4c476991 5688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5689 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5690 struct cfg80211_scan_request *request;
2a519311
JB		 5691 struct nlattr *attr;
5692 struct wiphy *wiphy;
83f5e2cf 5693 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5694 size_t ie_len;
2a519311 5695
f4a11bb0
JB		 5696 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5697 return -EINVAL;
5698
79c97e97 5699 wiphy = &rdev->wiphy;
2a519311 5700
4c476991
JB		 5701 if (!rdev->ops->scan)
5702 return -EOPNOTSUPP;
2a519311 5703
f9d15d16 5704 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5705 err = -EBUSY;
5706 goto unlock;
5707 }
2a519311
JB		 5708
5709 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5710 n_channels = validate_scan_freqs(
5711 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5712 if (!n_channels) {
5713 err = -EINVAL;
5714 goto unlock;
5715 }
2a519311 5716 } else {
bdfbec2d 5717 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5718 }
5719
5720 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5721 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5722 n_ssids++;
5723
f9f47529
JB		 5724 if (n_ssids > wiphy->max_scan_ssids) {
5725 err = -EINVAL;
5726 goto unlock;
5727 }
2a519311 5728
70692ad2
JM		 5729 if (info->attrs[NL80211_ATTR_IE])
5730 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5731 else
5732 ie_len = 0;
5733
f9f47529
JB		 5734 if (ie_len > wiphy->max_scan_ie_len) {
5735 err = -EINVAL;
5736 goto unlock;
5737 }
18a83659 5738
2a519311 5739 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5740 + sizeof(*request->ssids) * n_ssids
5741 + sizeof(*request->channels) * n_channels
70692ad2 5742 + ie_len, GFP_KERNEL);
f9f47529
JB		 5743 if (!request) {
5744 err = -ENOMEM;
5745 goto unlock;
5746 }
2a519311 5747
2a519311 5748 if (n_ssids)
5ba63533 5749 request->ssids = (void *)&request->channels[n_channels];
2a519311 5750 request->n_ssids = n_ssids;
70692ad2
JM		 5751 if (ie_len) {
5752 if (request->ssids)
5753 request->ie = (void *)(request->ssids + n_ssids);
5754 else
5755 request->ie = (void *)(request->channels + n_channels);
5756 }
2a519311 5757
584991dc 5758 i = 0;
2a519311
JB		 5759 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5760 /* user specified, bail out if channel not found */
2a519311 5761 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5762 struct ieee80211_channel *chan;
5763
5764 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5765
5766 if (!chan) {
2a519311
JB		 5767 err = -EINVAL;
5768 goto out_free;
5769 }
584991dc
JB		 5770
5771 /* ignore disabled channels */
5772 if (chan->flags & IEEE80211_CHAN_DISABLED)
5773 continue;
5774
5775 request->channels[i] = chan;
2a519311
JB		 5776 i++;
5777 }
5778 } else {
34850ab2
JB		 5779 enum ieee80211_band band;
5780
2a519311 5781 /* all channels */
2a519311
JB		 5782 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5783 int j;
5784 if (!wiphy->bands[band])
5785 continue;
5786 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5787 struct ieee80211_channel *chan;
5788
5789 chan = &wiphy->bands[band]->channels[j];
5790
5791 if (chan->flags & IEEE80211_CHAN_DISABLED)
5792 continue;
5793
5794 request->channels[i] = chan;
2a519311
JB		 5795 i++;
5796 }
5797 }
5798 }
5799
584991dc
JB		 5800 if (!i) {
5801 err = -EINVAL;
5802 goto out_free;
5803 }
5804
5805 request->n_channels = i;
5806
2a519311
JB		 5807 i = 0;
5808 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5809 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5810 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5811 err = -EINVAL;
5812 goto out_free;
5813 }
57a27e1d 5814 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5815 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5816 i++;
5817 }
5818 }
5819
70692ad2
JM		 5820 if (info->attrs[NL80211_ATTR_IE]) {
5821 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5822 memcpy((void *)request->ie,
5823 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5824 request->ie_len);
5825 }
5826
34850ab2 5827 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5828 if (wiphy->bands[i])
5829 request->rates[i] =
5830 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5831
5832 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5833 nla_for_each_nested(attr,
5834 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5835 tmp) {
5836 enum ieee80211_band band = nla_type(attr);
5837
84404623 5838 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5839 err = -EINVAL;
5840 goto out_free;
5841 }
1b09cd82
FF		 5842
5843 if (!wiphy->bands[band])
5844 continue;
5845
34850ab2
JB		 5846 err = ieee80211_get_ratemask(wiphy->bands[band],
5847 nla_data(attr),
5848 nla_len(attr),
5849 &request->rates[band]);
5850 if (err)
5851 goto out_free;
5852 }
5853 }
5854
46856bbf 5855 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5856 request->flags = nla_get_u32(
5857 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5858 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5859 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5860 err = -EOPNOTSUPP;
5861 goto out_free;
5862 }
ad2b26ab
JB		 5863
5864 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5865 if (!(wiphy->features &
5866 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5867 err = -EOPNOTSUPP;
5868 goto out_free;
5869 }
5870
5871 if (wdev->current_bss) {
5872 err = -EOPNOTSUPP;
5873 goto out_free;
5874 }
5875
5876 err = nl80211_parse_random_mac(info->attrs,
5877 request->mac_addr,
5878 request->mac_addr_mask);
5879 if (err)
5880 goto out_free;
5881 }
46856bbf 5882 }
ed473771 5883
e9f935e3
RM		 5884 request->no_cck =
5885 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5886
fd014284 5887 request->wdev = wdev;
79c97e97 5888 request->wiphy = &rdev->wiphy;
15d6030b 5889 request->scan_start = jiffies;
2a519311 5890
79c97e97 5891 rdev->scan_req = request;
e35e4d28 5892 err = rdev_scan(rdev, request);
2a519311 5893
463d0183 5894 if (!err) {
fd014284
JB		 5895 nl80211_send_scan_start(rdev, wdev);
5896 if (wdev->netdev)
5897 dev_hold(wdev->netdev);
4c476991 5898 } else {
2a519311 5899 out_free:
79c97e97 5900 rdev->scan_req = NULL;
2a519311
JB		 5901 kfree(request);
5902 }
3b85875a 5903
f9f47529 5904 unlock:
2a519311
JB		 5905 return err;
5906}
5907
256da02d 5908static struct cfg80211_sched_scan_request *
ad2b26ab 5909nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5910 struct nlattr **attrs)
807f8a8c
LC		 5911{
5912 struct cfg80211_sched_scan_request *request;
807f8a8c 5913 struct nlattr *attr;
a1f1c21c 5914 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5915 u32 interval;
807f8a8c
LC		 5916 enum ieee80211_band band;
5917 size_t ie_len;
a1f1c21c 5918 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5919 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5920
256da02d
LC		 5921 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5922 return ERR_PTR(-EINVAL);
807f8a8c 5923
256da02d
LC		 5924 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5925 return ERR_PTR(-EINVAL);
bbe6ad6d 5926
256da02d 5927 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5928 if (interval == 0)
256da02d 5929 return ERR_PTR(-EINVAL);
807f8a8c 5930
256da02d 5931 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5932 n_channels = validate_scan_freqs(
256da02d 5933 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5934 if (!n_channels)
256da02d 5935 return ERR_PTR(-EINVAL);
807f8a8c 5936 } else {
bdfbec2d 5937 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5938 }
5939
256da02d
LC		 5940 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5941 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5942 tmp)
5943 n_ssids++;
5944
93b6aa69 5945 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5946 return ERR_PTR(-EINVAL);
807f8a8c 5947
ea73cbce
JB		 5948 /*
5949 * First, count the number of 'real' matchsets. Due to an issue with
5950 * the old implementation, matchsets containing only the RSSI attribute
5951 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5952 * RSSI for all matchsets, rather than their own matchset for reporting
5953 * all APs with a strong RSSI. This is needed to be compatible with
5954 * older userspace that treated a matchset with only the RSSI as the
5955 * global RSSI for all other matchsets - if there are other matchsets.
5956 */
256da02d 5957 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5958 nla_for_each_nested(attr,
256da02d 5959 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5960 tmp) {
5961 struct nlattr *rssi;
5962
5963 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5964 nla_data(attr), nla_len(attr),
5965 nl80211_match_policy);
5966 if (err)
256da02d 5967 return ERR_PTR(err);
ea73cbce
JB		 5968 /* add other standalone attributes here */
5969 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5970 n_match_sets++;
5971 continue;
5972 }
5973 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5974 if (rssi)
5975 default_match_rssi = nla_get_s32(rssi);
5976 }
5977 }
5978
5979 /* However, if there's no other matchset, add the RSSI one */
5980 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5981 n_match_sets = 1;
a1f1c21c
LC		 5982
5983 if (n_match_sets > wiphy->max_match_sets)
256da02d 5984 return ERR_PTR(-EINVAL);
a1f1c21c 5985
256da02d
LC		 5986 if (attrs[NL80211_ATTR_IE])
5987 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 5988 else
5989 ie_len = 0;
5990
5a865bad 5991 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 5992 return ERR_PTR(-EINVAL);
c10841ca 5993
807f8a8c 5994 request = kzalloc(sizeof(*request)
a2cd43c5 5995 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5996 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5997 + sizeof(*request->channels) * n_channels
807f8a8c 5998 + ie_len, GFP_KERNEL);
256da02d
LC		 5999 if (!request)
6000 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6001
6002 if (n_ssids)
6003 request->ssids = (void *)&request->channels[n_channels];
6004 request->n_ssids = n_ssids;
6005 if (ie_len) {
6006 if (request->ssids)
6007 request->ie = (void *)(request->ssids + n_ssids);
6008 else
6009 request->ie = (void *)(request->channels + n_channels);
6010 }
6011
a1f1c21c
LC		 6012 if (n_match_sets) {
6013 if (request->ie)
6014 request->match_sets = (void *)(request->ie + ie_len);
6015 else if (request->ssids)
6016 request->match_sets =
6017 (void *)(request->ssids + n_ssids);
6018 else
6019 request->match_sets =
6020 (void *)(request->channels + n_channels);
6021 }
6022 request->n_match_sets = n_match_sets;
6023
807f8a8c 6024 i = 0;
256da02d 6025 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6026 /* user specified, bail out if channel not found */
6027 nla_for_each_nested(attr,
256da02d 6028 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6029 tmp) {
6030 struct ieee80211_channel *chan;
6031
6032 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6033
6034 if (!chan) {
6035 err = -EINVAL;
6036 goto out_free;
6037 }
6038
6039 /* ignore disabled channels */
6040 if (chan->flags & IEEE80211_CHAN_DISABLED)
6041 continue;
6042
6043 request->channels[i] = chan;
6044 i++;
6045 }
6046 } else {
6047 /* all channels */
6048 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6049 int j;
6050 if (!wiphy->bands[band])
6051 continue;
6052 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6053 struct ieee80211_channel *chan;
6054
6055 chan = &wiphy->bands[band]->channels[j];
6056
6057 if (chan->flags & IEEE80211_CHAN_DISABLED)
6058 continue;
6059
6060 request->channels[i] = chan;
6061 i++;
6062 }
6063 }
6064 }
6065
6066 if (!i) {
6067 err = -EINVAL;
6068 goto out_free;
6069 }
6070
6071 request->n_channels = i;
6072
6073 i = 0;
256da02d
LC		 6074 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
6075 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6076 tmp) {
57a27e1d 6077 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6078 err = -EINVAL;
6079 goto out_free;
6080 }
57a27e1d 6081 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6082 memcpy(request->ssids[i].ssid, nla_data(attr),
6083 nla_len(attr));
807f8a8c
LC		 6084 i++;
6085 }
6086 }
6087
a1f1c21c 6088 i = 0;
256da02d 6089 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6090 nla_for_each_nested(attr,
256da02d 6091 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6092 tmp) {
88e920b4 6093 struct nlattr *ssid, *rssi;
a1f1c21c 6094
ae811e21
JB		 6095 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6096 nla_data(attr), nla_len(attr),
6097 nl80211_match_policy);
6098 if (err)
6099 goto out_free;
4a4ab0d7 6100 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6101 if (ssid) {
ea73cbce
JB		 6102 if (WARN_ON(i >= n_match_sets)) {
6103 /* this indicates a programming error,
6104 * the loop above should have verified
6105 * things properly
6106 */
6107 err = -EINVAL;
6108 goto out_free;
6109 }
6110
a1f1c21c
LC		 6111 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6112 err = -EINVAL;
6113 goto out_free;
6114 }
6115 memcpy(request->match_sets[i].ssid.ssid,
6116 nla_data(ssid), nla_len(ssid));
6117 request->match_sets[i].ssid.ssid_len =
6118 nla_len(ssid);
ea73cbce
JB		 6119 /* special attribute - old implemenation w/a */
6120 request->match_sets[i].rssi_thold =
6121 default_match_rssi;
6122 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6123 if (rssi)
6124 request->match_sets[i].rssi_thold =
6125 nla_get_s32(rssi);
a1f1c21c
LC		 6126 }
6127 i++;
6128 }
ea73cbce
JB		 6129
6130 /* there was no other matchset, so the RSSI one is alone */
6131 if (i == 0)
6132 request->match_sets[0].rssi_thold = default_match_rssi;
6133
6134 request->min_rssi_thold = INT_MAX;
6135 for (i = 0; i < n_match_sets; i++)
6136 request->min_rssi_thold =
6137 min(request->match_sets[i].rssi_thold,
6138 request->min_rssi_thold);
6139 } else {
6140 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6141 }
6142
9900e484
JB		 6143 if (ie_len) {
6144 request->ie_len = ie_len;
807f8a8c 6145 memcpy((void *)request->ie,
256da02d 6146 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6147 request->ie_len);
6148 }
6149
256da02d 6150 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6151 request->flags = nla_get_u32(
256da02d 6152 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6153 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6154 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6155 err = -EOPNOTSUPP;
6156 goto out_free;
6157 }
ad2b26ab
JB		 6158
6159 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6160 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6161
6162 if (!wdev) /* must be net-detect */
6163 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6164
6165 if (!(wiphy->features & flg)) {
6166 err = -EOPNOTSUPP;
6167 goto out_free;
6168 }
6169
6170 if (wdev && wdev->current_bss) {
6171 err = -EOPNOTSUPP;
6172 goto out_free;
6173 }
6174
6175 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6176 request->mac_addr_mask);
6177 if (err)
6178 goto out_free;
6179 }
46856bbf 6180 }
ed473771 6181
bbe6ad6d 6182 request->interval = interval;
15d6030b 6183 request->scan_start = jiffies;
807f8a8c 6184
256da02d 6185 return request;
807f8a8c
LC		 6186
6187out_free:
6188 kfree(request);
256da02d
LC		 6189 return ERR_PTR(err);
6190}
6191
6192static int nl80211_start_sched_scan(struct sk_buff *skb,
6193 struct genl_info *info)
6194{
6195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6196 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6197 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6198 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6199 int err;
6200
6201 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6202 !rdev->ops->sched_scan_start)
6203 return -EOPNOTSUPP;
6204
6205 if (rdev->sched_scan_req)
6206 return -EINPROGRESS;
6207
31a60ed1
JR		 6208 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6209 info->attrs);
6210
6211 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6212 if (err)
6213 goto out_err;
6214
31a60ed1 6215 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6216 if (err)
6217 goto out_free;
6218
31a60ed1
JR		 6219 sched_scan_req->dev = dev;
6220 sched_scan_req->wiphy = &rdev->wiphy;
6221
93a1e86c
JR		 6222 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6223 sched_scan_req->owner_nlportid = info->snd_portid;
6224
31a60ed1 6225 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6226
6227 nl80211_send_sched_scan(rdev, dev,
6228 NL80211_CMD_START_SCHED_SCAN);
6229 return 0;
6230
6231out_free:
31a60ed1 6232 kfree(sched_scan_req);
256da02d 6233out_err:
807f8a8c
LC		 6234 return err;
6235}
6236
6237static int nl80211_stop_sched_scan(struct sk_buff *skb,
6238 struct genl_info *info)
6239{
6240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6241
6242 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6243 !rdev->ops->sched_scan_stop)
6244 return -EOPNOTSUPP;
6245
5fe231e8 6246 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6247}
6248
04f39047
SW		 6249static int nl80211_start_radar_detection(struct sk_buff *skb,
6250 struct genl_info *info)
6251{
6252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6253 struct net_device *dev = info->user_ptr[1];
6254 struct wireless_dev *wdev = dev->ieee80211_ptr;
6255 struct cfg80211_chan_def chandef;
55f7435c 6256 enum nl80211_dfs_regions dfs_region;
31559f35 6257 unsigned int cac_time_ms;
04f39047
SW		 6258 int err;
6259
55f7435c
LR		 6260 dfs_region = reg_get_dfs_region(wdev->wiphy);
6261 if (dfs_region == NL80211_DFS_UNSET)
6262 return -EINVAL;
6263
04f39047
SW		 6264 err = nl80211_parse_chandef(rdev, info, &chandef);
6265 if (err)
6266 return err;
6267
ff311bc1
SW		 6268 if (netif_carrier_ok(dev))
6269 return -EBUSY;
6270
04f39047
SW		 6271 if (wdev->cac_started)
6272 return -EBUSY;
6273
2beb6dab 6274 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6275 wdev->iftype);
04f39047
SW		 6276 if (err < 0)
6277 return err;
6278
6279 if (err == 0)
6280 return -EINVAL;
6281
fe7c3a1f 6282 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6283 return -EINVAL;
6284
6285 if (!rdev->ops->start_radar_detection)
6286 return -EOPNOTSUPP;
6287
31559f35
JD		 6288 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6289 if (WARN_ON(!cac_time_ms))
6290 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6291
6292 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6293 cac_time_ms);
04f39047 6294 if (!err) {
9e0e2961 6295 wdev->chandef = chandef;
04f39047
SW		 6296 wdev->cac_started = true;
6297 wdev->cac_start_time = jiffies;
31559f35 6298 wdev->cac_time_ms = cac_time_ms;
04f39047 6299 }
04f39047
SW		 6300 return err;
6301}
6302
16ef1fe2
SW		 6303static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6304{
6305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6306 struct net_device *dev = info->user_ptr[1];
6307 struct wireless_dev *wdev = dev->ieee80211_ptr;
6308 struct cfg80211_csa_settings params;
6309 /* csa_attrs is defined static to avoid waste of stack size - this
6310 * function is called under RTNL lock, so this should not be a problem.
6311 */
6312 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6313 int err;
ee4bc9e7 6314 bool need_new_beacon = false;
9a774c78 6315 int len, i;
252e07ca 6316 u32 cs_count;
16ef1fe2
SW		 6317
6318 if (!rdev->ops->channel_switch ||
6319 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6320 return -EOPNOTSUPP;
6321
ee4bc9e7
SW		 6322 switch (dev->ieee80211_ptr->iftype) {
6323 case NL80211_IFTYPE_AP:
6324 case NL80211_IFTYPE_P2P_GO:
6325 need_new_beacon = true;
6326
6327 /* useless if AP is not running */
6328 if (!wdev->beacon_interval)
1ff79dfa 6329 return -ENOTCONN;
ee4bc9e7
SW		 6330 break;
6331 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6332 if (!wdev->ssid_len)
6333 return -ENOTCONN;
6334 break;
c6da674a 6335 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6336 if (!wdev->mesh_id_len)
6337 return -ENOTCONN;
ee4bc9e7
SW		 6338 break;
6339 default:
16ef1fe2 6340 return -EOPNOTSUPP;
ee4bc9e7 6341 }
16ef1fe2
SW		 6342
6343 memset(&params, 0, sizeof(params));
6344
6345 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6346 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6347 return -EINVAL;
6348
6349 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6350 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6351 return -EINVAL;
6352
252e07ca
LC		 6353 /* Even though the attribute is u32, the specification says
6354 * u8, so let's make sure we don't overflow.
6355 */
6356 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6357 if (cs_count > 255)
6358 return -EINVAL;
6359
6360 params.count = cs_count;
16ef1fe2 6361
ee4bc9e7
SW		 6362 if (!need_new_beacon)
6363 goto skip_beacons;
6364
16ef1fe2
SW		 6365 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6366 if (err)
6367 return err;
6368
6369 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6370 info->attrs[NL80211_ATTR_CSA_IES],
6371 nl80211_policy);
6372 if (err)
6373 return err;
6374
6375 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6376 if (err)
6377 return err;
6378
6379 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6380 return -EINVAL;
6381
9a774c78
AO		 6382 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6383 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6384 return -EINVAL;
6385
9a774c78
AO		 6386 params.n_counter_offsets_beacon = len / sizeof(u16);
6387 if (rdev->wiphy.max_num_csa_counters &&
6388 (params.n_counter_offsets_beacon >
6389 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6390 return -EINVAL;
6391
9a774c78
AO		 6392 params.counter_offsets_beacon =
6393 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6394
6395 /* sanity checks - counters should fit and be the same */
6396 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6397 u16 offset = params.counter_offsets_beacon[i];
6398
6399 if (offset >= params.beacon_csa.tail_len)
6400 return -EINVAL;
6401
6402 if (params.beacon_csa.tail[offset] != params.count)
6403 return -EINVAL;
6404 }
6405
16ef1fe2 6406 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6407 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6408 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6409 return -EINVAL;
6410
9a774c78
AO		 6411 params.n_counter_offsets_presp = len / sizeof(u16);
6412 if (rdev->wiphy.max_num_csa_counters &&
6413 (params.n_counter_offsets_beacon >
6414 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6415 return -EINVAL;
9a774c78
AO		 6416
6417 params.counter_offsets_presp =
6418 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6419
6420 /* sanity checks - counters should fit and be the same */
6421 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6422 u16 offset = params.counter_offsets_presp[i];
6423
6424 if (offset >= params.beacon_csa.probe_resp_len)
6425 return -EINVAL;
6426
6427 if (params.beacon_csa.probe_resp[offset] !=
6428 params.count)
6429 return -EINVAL;
6430 }
16ef1fe2
SW		 6431 }
6432
ee4bc9e7 6433skip_beacons:
16ef1fe2
SW		 6434 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6435 if (err)
6436 return err;
6437
174e0cd2
IP		 6438 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6439 wdev->iftype))
16ef1fe2
SW		 6440 return -EINVAL;
6441
2beb6dab
LC		 6442 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6443 &params.chandef,
6444 wdev->iftype);
6445 if (err < 0)
6446 return err;
6447
dcc6c2f5 6448 if (err > 0)
2beb6dab 6449 params.radar_required = true;
16ef1fe2 6450
16ef1fe2
SW		 6451 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6452 params.block_tx = true;
6453
c56589ed
SW		 6454 wdev_lock(wdev);
6455 err = rdev_channel_switch(rdev, dev, &params);
6456 wdev_unlock(wdev);
6457
6458 return err;
16ef1fe2
SW		 6459}
6460
9720bb3a
JB		 6461static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6462 u32 seq, int flags,
2a519311 6463 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6464 struct wireless_dev *wdev,
6465 struct cfg80211_internal_bss *intbss)
2a519311 6466{
48ab905d 6467 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6468 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6469 void *hdr;
6470 struct nlattr *bss;
48ab905d
JB		 6471
6472 ASSERT_WDEV_LOCK(wdev);
2a519311 6473
15e47304 6474 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6475 NL80211_CMD_NEW_SCAN_RESULTS);
6476 if (!hdr)
6477 return -1;
6478
9720bb3a
JB		 6479 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6480
97990a06
JB		 6481 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6482 goto nla_put_failure;
6483 if (wdev->netdev &&
9360ffd1
DM		 6484 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6485 goto nla_put_failure;
97990a06
JB		 6486 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6487 goto nla_put_failure;
2a519311
JB		 6488
6489 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6490 if (!bss)
6491 goto nla_put_failure;
9360ffd1 6492 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6493 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6494 goto nla_put_failure;
9caf0364
JB		 6495
6496 rcu_read_lock();
0e227084
JB		 6497 /* indicate whether we have probe response data or not */
6498 if (rcu_access_pointer(res->proberesp_ies) &&
6499 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6500 goto fail_unlock_rcu;
6501
6502 /* this pointer prefers to be pointed to probe response data
6503 * but is always valid
6504 */
9caf0364 6505 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6506 if (ies) {
6507 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6508 goto fail_unlock_rcu;
8cef2c9d
JB		 6509 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6510 ies->len, ies->data))
6511 goto fail_unlock_rcu;
9caf0364 6512 }
0e227084
JB		 6513
6514 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6515 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6516 if (ies && ies->from_beacon) {
6517 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6518 goto fail_unlock_rcu;
6519 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6520 ies->len, ies->data))
6521 goto fail_unlock_rcu;
9caf0364
JB		 6522 }
6523 rcu_read_unlock();
6524
9360ffd1
DM		 6525 if (res->beacon_interval &&
6526 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6527 goto nla_put_failure;
6528 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6529 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6530 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6531 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6532 jiffies_to_msecs(jiffies - intbss->ts)))
6533 goto nla_put_failure;
2a519311 6534
77965c97 6535 switch (rdev->wiphy.signal_type) {
2a519311 6536 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6537 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6538 goto nla_put_failure;
2a519311
JB		 6539 break;
6540 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6541 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6542 goto nla_put_failure;
2a519311
JB		 6543 break;
6544 default:
6545 break;
6546 }
6547
48ab905d 6548 switch (wdev->iftype) {
074ac8df 6549 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6550 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6551 if (intbss == wdev->current_bss &&
6552 nla_put_u32(msg, NL80211_BSS_STATUS,
6553 NL80211_BSS_STATUS_ASSOCIATED))
6554 goto nla_put_failure;
48ab905d
JB		 6555 break;
6556 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6557 if (intbss == wdev->current_bss &&
6558 nla_put_u32(msg, NL80211_BSS_STATUS,
6559 NL80211_BSS_STATUS_IBSS_JOINED))
6560 goto nla_put_failure;
48ab905d
JB		 6561 break;
6562 default:
6563 break;
6564 }
6565
2a519311
JB		 6566 nla_nest_end(msg, bss);
6567
6568 return genlmsg_end(msg, hdr);
6569
8cef2c9d
JB		 6570 fail_unlock_rcu:
6571 rcu_read_unlock();
2a519311
JB		 6572 nla_put_failure:
6573 genlmsg_cancel(msg, hdr);
6574 return -EMSGSIZE;
6575}
6576
97990a06 6577static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6578{
48ab905d 6579 struct cfg80211_registered_device *rdev;
2a519311 6580 struct cfg80211_internal_bss *scan;
48ab905d 6581 struct wireless_dev *wdev;
97990a06 6582 int start = cb->args[2], idx = 0;
2a519311
JB		 6583 int err;
6584
97990a06 6585 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6586 if (err)
6587 return err;
2a519311 6588
48ab905d
JB		 6589 wdev_lock(wdev);
6590 spin_lock_bh(&rdev->bss_lock);
6591 cfg80211_bss_expire(rdev);
6592
9720bb3a
JB		 6593 cb->seq = rdev->bss_generation;
6594
48ab905d 6595 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6596 if (++idx <= start)
6597 continue;
9720bb3a 6598 if (nl80211_send_bss(skb, cb,
2a519311 6599 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6600 rdev, wdev, scan) < 0) {
2a519311 6601 idx--;
67748893 6602 break;
2a519311
JB		 6603 }
6604 }
6605
48ab905d
JB		 6606 spin_unlock_bh(&rdev->bss_lock);
6607 wdev_unlock(wdev);
2a519311 6608
97990a06
JB		 6609 cb->args[2] = idx;
6610 nl80211_finish_wdev_dump(rdev);
2a519311 6611
67748893 6612 return skb->len;
2a519311
JB		 6613}
6614
15e47304 6615static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6616 int flags, struct net_device *dev,
6617 struct survey_info *survey)
6618{
6619 void *hdr;
6620 struct nlattr *infoattr;
6621
15e47304 6622 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6623 NL80211_CMD_NEW_SURVEY_RESULTS);
6624 if (!hdr)
6625 return -ENOMEM;
6626
9360ffd1
DM		 6627 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6628 goto nla_put_failure;
61fa713c
HS		 6629
6630 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6631 if (!infoattr)
6632 goto nla_put_failure;
6633
9360ffd1
DM		 6634 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6635 survey->channel->center_freq))
6636 goto nla_put_failure;
6637
6638 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6639 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6640 goto nla_put_failure;
6641 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6642 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6643 goto nla_put_failure;
6644 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6645 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6646 survey->channel_time))
6647 goto nla_put_failure;
6648 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6649 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6650 survey->channel_time_busy))
6651 goto nla_put_failure;
6652 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6653 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6654 survey->channel_time_ext_busy))
6655 goto nla_put_failure;
6656 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6657 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6658 survey->channel_time_rx))
6659 goto nla_put_failure;
6660 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6661 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6662 survey->channel_time_tx))
6663 goto nla_put_failure;
61fa713c
HS		 6664
6665 nla_nest_end(msg, infoattr);
6666
6667 return genlmsg_end(msg, hdr);
6668
6669 nla_put_failure:
6670 genlmsg_cancel(msg, hdr);
6671 return -EMSGSIZE;
6672}
6673
6674static int nl80211_dump_survey(struct sk_buff *skb,
6675 struct netlink_callback *cb)
6676{
6677 struct survey_info survey;
1b8ec87a 6678 struct cfg80211_registered_device *rdev;
97990a06
JB		 6679 struct wireless_dev *wdev;
6680 int survey_idx = cb->args[2];
61fa713c
HS		 6681 int res;
6682
1b8ec87a 6683 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6684 if (res)
6685 return res;
61fa713c 6686
97990a06
JB		 6687 if (!wdev->netdev) {
6688 res = -EINVAL;
6689 goto out_err;
6690 }
6691
1b8ec87a 6692 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6693 res = -EOPNOTSUPP;
6694 goto out_err;
6695 }
6696
6697 while (1) {
1b8ec87a 6698 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6699 if (res == -ENOENT)
6700 break;
6701 if (res)
6702 goto out_err;
6703
180cdc79
LR		 6704 /* Survey without a channel doesn't make sense */
6705 if (!survey.channel) {
6706 res = -EINVAL;
6707 goto out;
6708 }
6709
ea9eba6a 6710 if (survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6711 survey_idx++;
6712 continue;
6713 }
6714
61fa713c 6715 if (nl80211_send_survey(skb,
15e47304 6716 NETLINK_CB(cb->skb).portid,
61fa713c 6717 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6718 wdev->netdev, &survey) < 0)
61fa713c
HS		 6719 goto out;
6720 survey_idx++;
6721 }
6722
6723 out:
97990a06 6724 cb->args[2] = survey_idx;
61fa713c
HS		 6725 res = skb->len;
6726 out_err:
1b8ec87a 6727 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6728 return res;
6729}
6730
b23aa676
SO		 6731static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6732{
6733 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6734 NL80211_WPA_VERSION_2));
6735}
6736
636a5d36
JM		 6737static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6738{
4c476991
JB		 6739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6740 struct net_device *dev = info->user_ptr[1];
19957bb3 6741 struct ieee80211_channel *chan;
e39e5b5e
JM		 6742 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6743 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6744 enum nl80211_auth_type auth_type;
fffd0934 6745 struct key_parse key;
d5cdfacb 6746 bool local_state_change;
636a5d36 6747
f4a11bb0
JB		 6748 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6749 return -EINVAL;
6750
6751 if (!info->attrs[NL80211_ATTR_MAC])
6752 return -EINVAL;
6753
1778092e
JM		 6754 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6755 return -EINVAL;
6756
19957bb3
JB		 6757 if (!info->attrs[NL80211_ATTR_SSID])
6758 return -EINVAL;
6759
6760 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6761 return -EINVAL;
6762
fffd0934
JB		 6763 err = nl80211_parse_key(info, &key);
6764 if (err)
6765 return err;
6766
6767 if (key.idx >= 0) {
e31b8213
JB		 6768 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6769 return -EINVAL;
fffd0934
JB		 6770 if (!key.p.key || !key.p.key_len)
6771 return -EINVAL;
6772 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6773 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6774 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6775 key.p.key_len != WLAN_KEY_LEN_WEP104))
6776 return -EINVAL;
6777 if (key.idx > 4)
6778 return -EINVAL;
6779 } else {
6780 key.p.key_len = 0;
6781 key.p.key = NULL;
6782 }
6783
afea0b7a
JB		 6784 if (key.idx >= 0) {
6785 int i;
6786 bool ok = false;
6787 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6788 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6789 ok = true;
6790 break;
6791 }
6792 }
4c476991
JB		 6793 if (!ok)
6794 return -EINVAL;
afea0b7a
JB		 6795 }
6796
4c476991
JB		 6797 if (!rdev->ops->auth)
6798 return -EOPNOTSUPP;
636a5d36 6799
074ac8df 6800 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6801 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6802 return -EOPNOTSUPP;
eec60b03 6803
19957bb3 6804 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6805 chan = nl80211_get_valid_chan(&rdev->wiphy,
6806 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6807 if (!chan)
4c476991 6808 return -EINVAL;
636a5d36 6809
19957bb3
JB		 6810 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6811 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6812
6813 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6814 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6815 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6816 }
6817
19957bb3 6818 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6819 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6820 return -EINVAL;
636a5d36 6821
e39e5b5e
JM		 6822 if (auth_type == NL80211_AUTHTYPE_SAE &&
6823 !info->attrs[NL80211_ATTR_SAE_DATA])
6824 return -EINVAL;
6825
6826 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6827 if (auth_type != NL80211_AUTHTYPE_SAE)
6828 return -EINVAL;
6829 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6830 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6831 /* need to include at least Auth Transaction and Status Code */
6832 if (sae_data_len < 4)
6833 return -EINVAL;
6834 }
6835
d5cdfacb
JM		 6836 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6837
95de817b
JB		 6838 /*
6839 * Since we no longer track auth state, ignore
6840 * requests to only change local state.
6841 */
6842 if (local_state_change)
6843 return 0;
6844
91bf9b26
JB		 6845 wdev_lock(dev->ieee80211_ptr);
6846 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6847 ssid, ssid_len, ie, ie_len,
6848 key.p.key, key.p.key_len, key.idx,
6849 sae_data, sae_data_len);
6850 wdev_unlock(dev->ieee80211_ptr);
6851 return err;
636a5d36
JM		 6852}
6853
c0692b8f
JB		 6854static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6855 struct genl_info *info,
3dc27d25
JB		 6856 struct cfg80211_crypto_settings *settings,
6857 int cipher_limit)
b23aa676 6858{
c0b2bbd8
JB		 6859 memset(settings, 0, sizeof(*settings));
6860
b23aa676
SO		 6861 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6862
c0692b8f
JB		 6863 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6864 u16 proto;
6865 proto = nla_get_u16(
6866 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6867 settings->control_port_ethertype = cpu_to_be16(proto);
6868 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6869 proto != ETH_P_PAE)
6870 return -EINVAL;
6871 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6872 settings->control_port_no_encrypt = true;
6873 } else
6874 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6875
b23aa676
SO		 6876 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6877 void *data;
6878 int len, i;
6879
6880 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6881 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6882 settings->n_ciphers_pairwise = len / sizeof(u32);
6883
6884 if (len % sizeof(u32))
6885 return -EINVAL;
6886
3dc27d25 6887 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6888 return -EINVAL;
6889
6890 memcpy(settings->ciphers_pairwise, data, len);
6891
6892 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6893 if (!cfg80211_supported_cipher_suite(
6894 &rdev->wiphy,
b23aa676
SO		 6895 settings->ciphers_pairwise[i]))
6896 return -EINVAL;
6897 }
6898
6899 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6900 settings->cipher_group =
6901 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6902 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6903 settings->cipher_group))
b23aa676
SO		 6904 return -EINVAL;
6905 }
6906
6907 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6908 settings->wpa_versions =
6909 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6910 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6911 return -EINVAL;
6912 }
6913
6914 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6915 void *data;
6d30240e 6916 int len;
b23aa676
SO		 6917
6918 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6919 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6920 settings->n_akm_suites = len / sizeof(u32);
6921
6922 if (len % sizeof(u32))
6923 return -EINVAL;
6924
1b9ca027
JM		 6925 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6926 return -EINVAL;
6927
b23aa676 6928 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6929 }
6930
6931 return 0;
6932}
6933
636a5d36
JM		 6934static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6935{
4c476991
JB		 6936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6937 struct net_device *dev = info->user_ptr[1];
f444de05 6938 struct ieee80211_channel *chan;
f62fab73
JB		 6939 struct cfg80211_assoc_request req = {};
6940 const u8 *bssid, *ssid;
6941 int err, ssid_len = 0;
636a5d36 6942
f4a11bb0
JB		 6943 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6944 return -EINVAL;
6945
6946 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6947 !info->attrs[NL80211_ATTR_SSID] ||
6948 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6949 return -EINVAL;
6950
4c476991
JB		 6951 if (!rdev->ops->assoc)
6952 return -EOPNOTSUPP;
636a5d36 6953
074ac8df 6954 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6955 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6956 return -EOPNOTSUPP;
eec60b03 6957
19957bb3 6958 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6959
664834de
JM		 6960 chan = nl80211_get_valid_chan(&rdev->wiphy,
6961 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6962 if (!chan)
4c476991 6963 return -EINVAL;
636a5d36 6964
19957bb3
JB		 6965 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6966 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6967
6968 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6969 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6970 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6971 }
6972
dc6382ce 6973 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6974 enum nl80211_mfp mfp =
dc6382ce 6975 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6976 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6977 req.use_mfp = true;
4c476991
JB		 6978 else if (mfp != NL80211_MFP_NO)
6979 return -EINVAL;
dc6382ce
JM		 6980 }
6981
3e5d7649 6982 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6983 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6984
7e7c8926 6985 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6986 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6987
6988 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6989 memcpy(&req.ht_capa_mask,
6990 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6991 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6992
6993 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6994 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6995 return -EINVAL;
f62fab73
JB		 6996 memcpy(&req.ht_capa,
6997 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6998 sizeof(req.ht_capa));
7e7c8926
BG		 6999 }
7000
ee2aca34 7001 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7002 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7003
7004 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7005 memcpy(&req.vht_capa_mask,
7006 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7007 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7008
7009 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7010 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7011 return -EINVAL;
f62fab73
JB		 7012 memcpy(&req.vht_capa,
7013 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7014 sizeof(req.vht_capa));
ee2aca34
JB		 7015 }
7016
bab5ab7d
AK		 7017 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7018 if (!(rdev->wiphy.features &
7019 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7020 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7021 return -EINVAL;
7022 req.flags |= ASSOC_REQ_USE_RRM;
7023 }
7024
f62fab73 7025 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7026 if (!err) {
7027 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7028 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7029 ssid, ssid_len, &req);
91bf9b26
JB		 7030 wdev_unlock(dev->ieee80211_ptr);
7031 }
636a5d36 7032
636a5d36
JM		 7033 return err;
7034}
7035
7036static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7037{
4c476991
JB		 7038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7039 struct net_device *dev = info->user_ptr[1];
19957bb3 7040 const u8 *ie = NULL, *bssid;
91bf9b26 7041 int ie_len = 0, err;
19957bb3 7042 u16 reason_code;
d5cdfacb 7043 bool local_state_change;
636a5d36 7044
f4a11bb0
JB		 7045 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7046 return -EINVAL;
7047
7048 if (!info->attrs[NL80211_ATTR_MAC])
7049 return -EINVAL;
7050
7051 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7052 return -EINVAL;
7053
4c476991
JB		 7054 if (!rdev->ops->deauth)
7055 return -EOPNOTSUPP;
636a5d36 7056
074ac8df 7057 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7058 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7059 return -EOPNOTSUPP;
eec60b03 7060
19957bb3 7061 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7062
19957bb3
JB		 7063 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7064 if (reason_code == 0) {
f4a11bb0 7065 /* Reason Code 0 is reserved */
4c476991 7066 return -EINVAL;
255e737e 7067 }
636a5d36
JM		 7068
7069 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7070 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7071 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7072 }
7073
d5cdfacb
JM		 7074 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7075
91bf9b26
JB		 7076 wdev_lock(dev->ieee80211_ptr);
7077 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7078 local_state_change);
7079 wdev_unlock(dev->ieee80211_ptr);
7080 return err;
636a5d36
JM		 7081}
7082
7083static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7084{
4c476991
JB		 7085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7086 struct net_device *dev = info->user_ptr[1];
19957bb3 7087 const u8 *ie = NULL, *bssid;
91bf9b26 7088 int ie_len = 0, err;
19957bb3 7089 u16 reason_code;
d5cdfacb 7090 bool local_state_change;
636a5d36 7091
f4a11bb0
JB		 7092 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7093 return -EINVAL;
7094
7095 if (!info->attrs[NL80211_ATTR_MAC])
7096 return -EINVAL;
7097
7098 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7099 return -EINVAL;
7100
4c476991
JB		 7101 if (!rdev->ops->disassoc)
7102 return -EOPNOTSUPP;
636a5d36 7103
074ac8df 7104 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7105 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7106 return -EOPNOTSUPP;
eec60b03 7107
19957bb3 7108 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7109
19957bb3
JB		 7110 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7111 if (reason_code == 0) {
f4a11bb0 7112 /* Reason Code 0 is reserved */
4c476991 7113 return -EINVAL;
255e737e 7114 }
636a5d36
JM		 7115
7116 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7117 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7118 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7119 }
7120
d5cdfacb
JM		 7121 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7122
91bf9b26
JB		 7123 wdev_lock(dev->ieee80211_ptr);
7124 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7125 local_state_change);
7126 wdev_unlock(dev->ieee80211_ptr);
7127 return err;
636a5d36
JM		 7128}
7129
dd5b4cc7
FF		 7130static bool
7131nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7132 int mcast_rate[IEEE80211_NUM_BANDS],
7133 int rateval)
7134{
7135 struct wiphy *wiphy = &rdev->wiphy;
7136 bool found = false;
7137 int band, i;
7138
7139 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7140 struct ieee80211_supported_band *sband;
7141
7142 sband = wiphy->bands[band];
7143 if (!sband)
7144 continue;
7145
7146 for (i = 0; i < sband->n_bitrates; i++) {
7147 if (sband->bitrates[i].bitrate == rateval) {
7148 mcast_rate[band] = i + 1;
7149 found = true;
7150 break;
7151 }
7152 }
7153 }
7154
7155 return found;
7156}
7157
04a773ad
JB		 7158static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7159{
4c476991
JB		 7160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7161 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7162 struct cfg80211_ibss_params ibss;
7163 struct wiphy *wiphy;
fffd0934 7164 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7165 int err;
7166
8e30bc55
JB		 7167 memset(&ibss, 0, sizeof(ibss));
7168
04a773ad
JB		 7169 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7170 return -EINVAL;
7171
683b6d3b 7172 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7173 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7174 return -EINVAL;
7175
8e30bc55
JB		 7176 ibss.beacon_interval = 100;
7177
7178 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7179 ibss.beacon_interval =
7180 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7181 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7182 return -EINVAL;
7183 }
7184
4c476991
JB		 7185 if (!rdev->ops->join_ibss)
7186 return -EOPNOTSUPP;
04a773ad 7187
4c476991
JB		 7188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7189 return -EOPNOTSUPP;
04a773ad 7190
79c97e97 7191 wiphy = &rdev->wiphy;
04a773ad 7192
39193498 7193 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7194 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7195
7196 if (!is_valid_ether_addr(ibss.bssid))
7197 return -EINVAL;
7198 }
04a773ad
JB		 7199 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7200 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7201
7202 if (info->attrs[NL80211_ATTR_IE]) {
7203 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7204 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7205 }
7206
683b6d3b
JB		 7207 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7208 if (err)
7209 return err;
04a773ad 7210
174e0cd2
IP		 7211 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7212 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7213 return -EINVAL;
7214
2f301ab2 7215 switch (ibss.chandef.width) {
bf372645
SW		 7216 case NL80211_CHAN_WIDTH_5:
7217 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7218 case NL80211_CHAN_WIDTH_20_NOHT:
7219 break;
7220 case NL80211_CHAN_WIDTH_20:
7221 case NL80211_CHAN_WIDTH_40:
7222 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7223 break;
7224 default:
c04d6150 7225 return -EINVAL;
2f301ab2 7226 }
db9c64cf 7227
04a773ad 7228 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7229 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7230
fbd2c8dc
TP		 7231 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7232 u8 *rates =
7233 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7234 int n_rates =
7235 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7236 struct ieee80211_supported_band *sband =
683b6d3b 7237 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7238
34850ab2
JB		 7239 err = ieee80211_get_ratemask(sband, rates, n_rates,
7240 &ibss.basic_rates);
7241 if (err)
7242 return err;
fbd2c8dc 7243 }
dd5b4cc7 7244
803768f5
SW		 7245 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7246 memcpy(&ibss.ht_capa_mask,
7247 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7248 sizeof(ibss.ht_capa_mask));
7249
7250 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7251 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7252 return -EINVAL;
7253 memcpy(&ibss.ht_capa,
7254 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7255 sizeof(ibss.ht_capa));
7256 }
7257
dd5b4cc7
FF		 7258 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7259 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7260 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7261 return -EINVAL;
fbd2c8dc 7262
4c476991 7263 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7264 bool no_ht = false;
7265
4c476991 7266 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7267 info->attrs[NL80211_ATTR_KEYS],
7268 &no_ht);
4c476991
JB		 7269 if (IS_ERR(connkeys))
7270 return PTR_ERR(connkeys);
de7044ee 7271
3d9d1d66
JB		 7272 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7273 no_ht) {
de7044ee
SM		 7274 kfree(connkeys);
7275 return -EINVAL;
7276 }
4c476991 7277 }
04a773ad 7278
267335d6
AQ		 7279 ibss.control_port =
7280 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7281
5336fa88
SW		 7282 ibss.userspace_handles_dfs =
7283 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7284
4c476991 7285 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7286 if (err)
b47f610b 7287 kzfree(connkeys);
04a773ad
JB		 7288 return err;
7289}
7290
7291static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7292{
4c476991
JB		 7293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7294 struct net_device *dev = info->user_ptr[1];
04a773ad 7295
4c476991
JB		 7296 if (!rdev->ops->leave_ibss)
7297 return -EOPNOTSUPP;
04a773ad 7298
4c476991
JB		 7299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7300 return -EOPNOTSUPP;
04a773ad 7301
4c476991 7302 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7303}
7304
f4e583c8
AQ		 7305static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7306{
7307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7308 struct net_device *dev = info->user_ptr[1];
7309 int mcast_rate[IEEE80211_NUM_BANDS];
7310 u32 nla_rate;
7311 int err;
7312
7313 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7314 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7315 return -EOPNOTSUPP;
7316
7317 if (!rdev->ops->set_mcast_rate)
7318 return -EOPNOTSUPP;
7319
7320 memset(mcast_rate, 0, sizeof(mcast_rate));
7321
7322 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7323 return -EINVAL;
7324
7325 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7326 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7327 return -EINVAL;
7328
7329 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7330
7331 return err;
7332}
7333
ad7e718c
JB		 7334static struct sk_buff *
7335__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7336 int approxlen, u32 portid, u32 seq,
7337 enum nl80211_commands cmd,
567ffc35
JB		 7338 enum nl80211_attrs attr,
7339 const struct nl80211_vendor_cmd_info *info,
7340 gfp_t gfp)
ad7e718c
JB		 7341{
7342 struct sk_buff *skb;
7343 void *hdr;
7344 struct nlattr *data;
7345
7346 skb = nlmsg_new(approxlen + 100, gfp);
7347 if (!skb)
7348 return NULL;
7349
7350 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7351 if (!hdr) {
7352 kfree_skb(skb);
7353 return NULL;
7354 }
7355
7356 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7357 goto nla_put_failure;
567ffc35
JB		 7358
7359 if (info) {
7360 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7361 info->vendor_id))
7362 goto nla_put_failure;
7363 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7364 info->subcmd))
7365 goto nla_put_failure;
7366 }
7367
ad7e718c
JB		 7368 data = nla_nest_start(skb, attr);
7369
7370 ((void **)skb->cb)[0] = rdev;
7371 ((void **)skb->cb)[1] = hdr;
7372 ((void **)skb->cb)[2] = data;
7373
7374 return skb;
7375
7376 nla_put_failure:
7377 kfree_skb(skb);
7378 return NULL;
7379}
f4e583c8 7380
e03ad6ea
JB		 7381struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7382 enum nl80211_commands cmd,
7383 enum nl80211_attrs attr,
7384 int vendor_event_idx,
7385 int approxlen, gfp_t gfp)
7386{
f26cbf40 7387 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7388 const struct nl80211_vendor_cmd_info *info;
7389
7390 switch (cmd) {
7391 case NL80211_CMD_TESTMODE:
7392 if (WARN_ON(vendor_event_idx != -1))
7393 return NULL;
7394 info = NULL;
7395 break;
7396 case NL80211_CMD_VENDOR:
7397 if (WARN_ON(vendor_event_idx < 0 ||
7398 vendor_event_idx >= wiphy->n_vendor_events))
7399 return NULL;
7400 info = &wiphy->vendor_events[vendor_event_idx];
7401 break;
7402 default:
7403 WARN_ON(1);
7404 return NULL;
7405 }
7406
7407 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7408 cmd, attr, info, gfp);
7409}
7410EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7411
7412void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7413{
7414 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7415 void *hdr = ((void **)skb->cb)[1];
7416 struct nlattr *data = ((void **)skb->cb)[2];
7417 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7418
bd8c78e7
JB		 7419 /* clear CB data for netlink core to own from now on */
7420 memset(skb->cb, 0, sizeof(skb->cb));
7421
e03ad6ea
JB		 7422 nla_nest_end(skb, data);
7423 genlmsg_end(skb, hdr);
7424
7425 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7426 mcgrp = NL80211_MCGRP_VENDOR;
7427
7428 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7429 mcgrp, gfp);
7430}
7431EXPORT_SYMBOL(__cfg80211_send_event_skb);
7432
aff89a9b 7433#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7434static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7435{
4c476991 7436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7437 struct wireless_dev *wdev =
7438 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7439 int err;
7440
fc73f11f
DS		 7441 if (!rdev->ops->testmode_cmd)
7442 return -EOPNOTSUPP;
7443
7444 if (IS_ERR(wdev)) {
7445 err = PTR_ERR(wdev);
7446 if (err != -EINVAL)
7447 return err;
7448 wdev = NULL;
7449 } else if (wdev->wiphy != &rdev->wiphy) {
7450 return -EINVAL;
7451 }
7452
aff89a9b
JB		 7453 if (!info->attrs[NL80211_ATTR_TESTDATA])
7454 return -EINVAL;
7455
ad7e718c 7456 rdev->cur_cmd_info = info;
fc73f11f 7457 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7458 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7459 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7460 rdev->cur_cmd_info = NULL;
aff89a9b 7461
aff89a9b
JB		 7462 return err;
7463}
7464
71063f0e
WYG		 7465static int nl80211_testmode_dump(struct sk_buff *skb,
7466 struct netlink_callback *cb)
7467{
00918d33 7468 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7469 int err;
7470 long phy_idx;
7471 void *data = NULL;
7472 int data_len = 0;
7473
5fe231e8
JB		 7474 rtnl_lock();
7475
71063f0e
WYG		 7476 if (cb->args[0]) {
7477 /*
7478 * 0 is a valid index, but not valid for args[0],
7479 * so we need to offset by 1.
7480 */
7481 phy_idx = cb->args[0] - 1;
7482 } else {
7483 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7484 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7485 nl80211_policy);
7486 if (err)
5fe231e8 7487 goto out_err;
00918d33 7488
2bd7e35d
JB		 7489 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7490 nl80211_fam.attrbuf);
7491 if (IS_ERR(rdev)) {
5fe231e8
JB		 7492 err = PTR_ERR(rdev);
7493 goto out_err;
00918d33 7494 }
2bd7e35d
JB		 7495 phy_idx = rdev->wiphy_idx;
7496 rdev = NULL;
2bd7e35d 7497
71063f0e
WYG		 7498 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7499 cb->args[1] =
7500 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7501 }
7502
7503 if (cb->args[1]) {
7504 data = nla_data((void *)cb->args[1]);
7505 data_len = nla_len((void *)cb->args[1]);
7506 }
7507
00918d33
JB		 7508 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7509 if (!rdev) {
5fe231e8
JB		 7510 err = -ENOENT;
7511 goto out_err;
71063f0e 7512 }
71063f0e 7513
00918d33 7514 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7515 err = -EOPNOTSUPP;
7516 goto out_err;
7517 }
7518
7519 while (1) {
15e47304 7520 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7521 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7522 NL80211_CMD_TESTMODE);
7523 struct nlattr *tmdata;
7524
cb35fba3
DC		 7525 if (!hdr)
7526 break;
7527
9360ffd1 7528 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7529 genlmsg_cancel(skb, hdr);
7530 break;
7531 }
7532
7533 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7534 if (!tmdata) {
7535 genlmsg_cancel(skb, hdr);
7536 break;
7537 }
e35e4d28 7538 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7539 nla_nest_end(skb, tmdata);
7540
7541 if (err == -ENOBUFS || err == -ENOENT) {
7542 genlmsg_cancel(skb, hdr);
7543 break;
7544 } else if (err) {
7545 genlmsg_cancel(skb, hdr);
7546 goto out_err;
7547 }
7548
7549 genlmsg_end(skb, hdr);
7550 }
7551
7552 err = skb->len;
7553 /* see above */
7554 cb->args[0] = phy_idx + 1;
7555 out_err:
5fe231e8 7556 rtnl_unlock();
71063f0e
WYG		 7557 return err;
7558}
aff89a9b
JB		 7559#endif
7560
b23aa676
SO		 7561static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7562{
4c476991
JB		 7563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7564 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7565 struct cfg80211_connect_params connect;
7566 struct wiphy *wiphy;
fffd0934 7567 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7568 int err;
7569
7570 memset(&connect, 0, sizeof(connect));
7571
7572 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7573 return -EINVAL;
7574
7575 if (!info->attrs[NL80211_ATTR_SSID] ||
7576 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7577 return -EINVAL;
7578
7579 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7580 connect.auth_type =
7581 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7582 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7583 NL80211_CMD_CONNECT))
b23aa676
SO		 7584 return -EINVAL;
7585 } else
7586 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7587
7588 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7589
c0692b8f 7590 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7591 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7592 if (err)
7593 return err;
b23aa676 7594
074ac8df 7595 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7596 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7597 return -EOPNOTSUPP;
b23aa676 7598
79c97e97 7599 wiphy = &rdev->wiphy;
b23aa676 7600
4486ea98
BS		 7601 connect.bg_scan_period = -1;
7602 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7603 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7604 connect.bg_scan_period =
7605 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7606 }
7607
b23aa676
SO		 7608 if (info->attrs[NL80211_ATTR_MAC])
7609 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7610 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7611 connect.bssid_hint =
7612 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7613 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7614 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7615
7616 if (info->attrs[NL80211_ATTR_IE]) {
7617 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7618 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7619 }
7620
cee00a95
JM		 7621 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7622 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7623 if (connect.mfp != NL80211_MFP_REQUIRED &&
7624 connect.mfp != NL80211_MFP_NO)
7625 return -EINVAL;
7626 } else {
7627 connect.mfp = NL80211_MFP_NO;
7628 }
7629
b23aa676 7630 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7631 connect.channel = nl80211_get_valid_chan(
7632 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7633 if (!connect.channel)
1df4a510
JM		 7634 return -EINVAL;
7635 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7636 connect.channel_hint = nl80211_get_valid_chan(
7637 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7638 if (!connect.channel_hint)
4c476991 7639 return -EINVAL;
b23aa676
SO		 7640 }
7641
fffd0934
JB		 7642 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7643 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7644 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7645 if (IS_ERR(connkeys))
7646 return PTR_ERR(connkeys);
fffd0934
JB		 7647 }
7648
7e7c8926
BG		 7649 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7650 connect.flags |= ASSOC_REQ_DISABLE_HT;
7651
7652 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7653 memcpy(&connect.ht_capa_mask,
7654 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7655 sizeof(connect.ht_capa_mask));
7656
7657 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7658 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7659 kzfree(connkeys);
7e7c8926 7660 return -EINVAL;
b4e4f47e 7661 }
7e7c8926
BG		 7662 memcpy(&connect.ht_capa,
7663 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7664 sizeof(connect.ht_capa));
7665 }
7666
ee2aca34
JB		 7667 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7668 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7669
7670 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7671 memcpy(&connect.vht_capa_mask,
7672 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7673 sizeof(connect.vht_capa_mask));
7674
7675 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7676 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7677 kzfree(connkeys);
ee2aca34
JB		 7678 return -EINVAL;
7679 }
7680 memcpy(&connect.vht_capa,
7681 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7682 sizeof(connect.vht_capa));
7683 }
7684
bab5ab7d
AK		 7685 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7686 if (!(rdev->wiphy.features &
7687 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7688 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7689 return -EINVAL;
7690 connect.flags |= ASSOC_REQ_USE_RRM;
7691 }
7692
83739b03
JB		 7693 wdev_lock(dev->ieee80211_ptr);
7694 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7695 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7696 if (err)
b47f610b 7697 kzfree(connkeys);
b23aa676
SO		 7698 return err;
7699}
7700
7701static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7702{
4c476991
JB		 7703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7704 struct net_device *dev = info->user_ptr[1];
b23aa676 7705 u16 reason;
83739b03 7706 int ret;
b23aa676
SO		 7707
7708 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7709 reason = WLAN_REASON_DEAUTH_LEAVING;
7710 else
7711 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7712
7713 if (reason == 0)
7714 return -EINVAL;
7715
074ac8df 7716 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7717 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7718 return -EOPNOTSUPP;
b23aa676 7719
83739b03
JB		 7720 wdev_lock(dev->ieee80211_ptr);
7721 ret = cfg80211_disconnect(rdev, dev, reason, true);
7722 wdev_unlock(dev->ieee80211_ptr);
7723 return ret;
b23aa676
SO		 7724}
7725
463d0183
JB		 7726static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7727{
4c476991 7728 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7729 struct net *net;
7730 int err;
7731 u32 pid;
7732
7733 if (!info->attrs[NL80211_ATTR_PID])
7734 return -EINVAL;
7735
7736 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7737
463d0183 7738 net = get_net_ns_by_pid(pid);
4c476991
JB		 7739 if (IS_ERR(net))
7740 return PTR_ERR(net);
463d0183
JB		 7741
7742 err = 0;
7743
7744 /* check if anything to do */
4c476991
JB		 7745 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7746 err = cfg80211_switch_netns(rdev, net);
463d0183 7747
463d0183 7748 put_net(net);
463d0183
JB		 7749 return err;
7750}
7751
67fbb16b
SO		 7752static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7753{
4c476991 7754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7755 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7756 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7757 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7758 struct cfg80211_pmksa pmksa;
7759
7760 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7761
7762 if (!info->attrs[NL80211_ATTR_MAC])
7763 return -EINVAL;
7764
7765 if (!info->attrs[NL80211_ATTR_PMKID])
7766 return -EINVAL;
7767
67fbb16b
SO		 7768 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7769 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7770
074ac8df 7771 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7772 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7773 return -EOPNOTSUPP;
67fbb16b
SO		 7774
7775 switch (info->genlhdr->cmd) {
7776 case NL80211_CMD_SET_PMKSA:
7777 rdev_ops = rdev->ops->set_pmksa;
7778 break;
7779 case NL80211_CMD_DEL_PMKSA:
7780 rdev_ops = rdev->ops->del_pmksa;
7781 break;
7782 default:
7783 WARN_ON(1);
7784 break;
7785 }
7786
4c476991
JB		 7787 if (!rdev_ops)
7788 return -EOPNOTSUPP;
67fbb16b 7789
4c476991 7790 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7791}
7792
7793static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7794{
4c476991
JB		 7795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7796 struct net_device *dev = info->user_ptr[1];
67fbb16b 7797
074ac8df 7798 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7799 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7800 return -EOPNOTSUPP;
67fbb16b 7801
4c476991
JB		 7802 if (!rdev->ops->flush_pmksa)
7803 return -EOPNOTSUPP;
67fbb16b 7804
e35e4d28 7805 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7806}
7807
109086ce
AN		 7808static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7809{
7810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7811 struct net_device *dev = info->user_ptr[1];
7812 u8 action_code, dialog_token;
df942e7b 7813 u32 peer_capability = 0;
109086ce
AN		 7814 u16 status_code;
7815 u8 *peer;
31fa97c5 7816 bool initiator;
109086ce
AN		 7817
7818 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7819 !rdev->ops->tdls_mgmt)
7820 return -EOPNOTSUPP;
7821
7822 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7823 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7824 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7825 !info->attrs[NL80211_ATTR_IE] ||
7826 !info->attrs[NL80211_ATTR_MAC])
7827 return -EINVAL;
7828
7829 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7830 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7831 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7832 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7833 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7834 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7835 peer_capability =
7836 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7837
e35e4d28 7838 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7839 dialog_token, status_code, peer_capability,
31fa97c5 7840 initiator,
e35e4d28
HG		 7841 nla_data(info->attrs[NL80211_ATTR_IE]),
7842 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7843}
7844
7845static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7846{
7847 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7848 struct net_device *dev = info->user_ptr[1];
7849 enum nl80211_tdls_operation operation;
7850 u8 *peer;
7851
7852 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7853 !rdev->ops->tdls_oper)
7854 return -EOPNOTSUPP;
7855
7856 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7857 !info->attrs[NL80211_ATTR_MAC])
7858 return -EINVAL;
7859
7860 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7861 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7862
e35e4d28 7863 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7864}
7865
9588bbd5
JM		 7866static int nl80211_remain_on_channel(struct sk_buff *skb,
7867 struct genl_info *info)
7868{
4c476991 7869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7870 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7871 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7872 struct sk_buff *msg;
7873 void *hdr;
7874 u64 cookie;
683b6d3b 7875 u32 duration;
9588bbd5
JM		 7876 int err;
7877
7878 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7879 !info->attrs[NL80211_ATTR_DURATION])
7880 return -EINVAL;
7881
7882 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7883
ebf348fc
JB		 7884 if (!rdev->ops->remain_on_channel ||
7885 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7886 return -EOPNOTSUPP;
7887
9588bbd5 7888 /*
ebf348fc
JB		 7889 * We should be on that channel for at least a minimum amount of
7890 * time (10ms) but no longer than the driver supports.
9588bbd5 7891 */
ebf348fc 7892 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7893 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7894 return -EINVAL;
7895
683b6d3b
JB		 7896 err = nl80211_parse_chandef(rdev, info, &chandef);
7897 if (err)
7898 return err;
9588bbd5
JM		 7899
7900 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7901 if (!msg)
7902 return -ENOMEM;
9588bbd5 7903
15e47304 7904 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7905 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7906 if (!hdr) {
7907 err = -ENOBUFS;
9588bbd5
JM		 7908 goto free_msg;
7909 }
7910
683b6d3b
JB		 7911 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7912 duration, &cookie);
9588bbd5
JM		 7913
7914 if (err)
7915 goto free_msg;
7916
9360ffd1
DM		 7917 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7918 goto nla_put_failure;
9588bbd5
JM		 7919
7920 genlmsg_end(msg, hdr);
4c476991
JB		 7921
7922 return genlmsg_reply(msg, info);
9588bbd5
JM		 7923
7924 nla_put_failure:
7925 err = -ENOBUFS;
7926 free_msg:
7927 nlmsg_free(msg);
9588bbd5
JM		 7928 return err;
7929}
7930
7931static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7932 struct genl_info *info)
7933{
4c476991 7934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7935 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7936 u64 cookie;
9588bbd5
JM		 7937
7938 if (!info->attrs[NL80211_ATTR_COOKIE])
7939 return -EINVAL;
7940
4c476991
JB		 7941 if (!rdev->ops->cancel_remain_on_channel)
7942 return -EOPNOTSUPP;
9588bbd5 7943
9588bbd5
JM		 7944 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7945
e35e4d28 7946 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7947}
7948
13ae75b1
JM		 7949static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7950 u8 *rates, u8 rates_len)
7951{
7952 u8 i;
7953 u32 mask = 0;
7954
7955 for (i = 0; i < rates_len; i++) {
7956 int rate = (rates[i] & 0x7f) * 5;
7957 int ridx;
7958 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7959 struct ieee80211_rate *srate =
7960 &sband->bitrates[ridx];
7961 if (rate == srate->bitrate) {
7962 mask |= 1 << ridx;
7963 break;
7964 }
7965 }
7966 if (ridx == sband->n_bitrates)
7967 return 0; /* rate not found */
7968 }
7969
7970 return mask;
7971}
7972
24db78c0
SW		 7973static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7974 u8 *rates, u8 rates_len,
7975 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7976{
7977 u8 i;
7978
7979 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7980
7981 for (i = 0; i < rates_len; i++) {
7982 int ridx, rbit;
7983
7984 ridx = rates[i] / 8;
7985 rbit = BIT(rates[i] % 8);
7986
7987 /* check validity */
910570b5 7988 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7989 return false;
7990
7991 /* check availability */
7992 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7993 mcs[ridx] |= rbit;
7994 else
7995 return false;
7996 }
7997
7998 return true;
7999}
8000
204e35a9
JD		 8001static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8002{
8003 u16 mcs_mask = 0;
8004
8005 switch (vht_mcs_map) {
8006 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8007 break;
8008 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8009 mcs_mask = 0x00FF;
8010 break;
8011 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8012 mcs_mask = 0x01FF;
8013 break;
8014 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8015 mcs_mask = 0x03FF;
8016 break;
8017 default:
8018 break;
8019 }
8020
8021 return mcs_mask;
8022}
8023
8024static void vht_build_mcs_mask(u16 vht_mcs_map,
8025 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8026{
8027 u8 nss;
8028
8029 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8030 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8031 vht_mcs_map >>= 2;
8032 }
8033}
8034
8035static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8036 struct nl80211_txrate_vht *txrate,
8037 u16 mcs[NL80211_VHT_NSS_MAX])
8038{
8039 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8040 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8041 u8 i;
8042
8043 if (!sband->vht_cap.vht_supported)
8044 return false;
8045
8046 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8047
8048 /* Build vht_mcs_mask from VHT capabilities */
8049 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8050
8051 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8052 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8053 mcs[i] = txrate->mcs[i];
8054 else
8055 return false;
8056 }
8057
8058 return true;
8059}
8060
b54452b0 8061static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8062 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8063 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8064 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8065 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8066 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8067 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8068};
8069
8070static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8071 struct genl_info *info)
8072{
8073 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8075 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8076 int rem, i;
8077 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8078 struct nlattr *tx_rates;
8079 struct ieee80211_supported_band *sband;
204e35a9 8080 u16 vht_tx_mcs_map;
13ae75b1 8081
4c476991
JB		 8082 if (!rdev->ops->set_bitrate_mask)
8083 return -EOPNOTSUPP;
13ae75b1
JM		 8084
8085 memset(&mask, 0, sizeof(mask));
8086 /* Default to all rates enabled */
8087 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8088 sband = rdev->wiphy.bands[i];
7869303b
JD		 8089
8090 if (!sband)
8091 continue;
8092
8093 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8094 memcpy(mask.control[i].ht_mcs,
7869303b 8095 sband->ht_cap.mcs.rx_mask,
d1e33e65 8096 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8097
8098 if (!sband->vht_cap.vht_supported)
8099 continue;
8100
8101 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8102 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8103 }
8104
b9243ab0
JD		 8105 /* if no rates are given set it back to the defaults */
8106 if (!info->attrs[NL80211_ATTR_TX_RATES])
8107 goto out;
8108
13ae75b1
JM		 8109 /*
8110 * The nested attribute uses enum nl80211_band as the index. This maps
8111 * directly to the enum ieee80211_band values used in cfg80211.
8112 */
24db78c0 8113 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8114 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8115 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8116 int err;
8117
4c476991
JB		 8118 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8119 return -EINVAL;
13ae75b1 8120 sband = rdev->wiphy.bands[band];
4c476991
JB		 8121 if (sband == NULL)
8122 return -EINVAL;
ae811e21
JB		 8123 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8124 nla_len(tx_rates), nl80211_txattr_policy);
8125 if (err)
8126 return err;
13ae75b1
JM		 8127 if (tb[NL80211_TXRATE_LEGACY]) {
8128 mask.control[band].legacy = rateset_to_mask(
8129 sband,
8130 nla_data(tb[NL80211_TXRATE_LEGACY]),
8131 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8132 if ((mask.control[band].legacy == 0) &&
8133 nla_len(tb[NL80211_TXRATE_LEGACY]))
8134 return -EINVAL;
24db78c0 8135 }
d1e33e65 8136 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8137 if (!ht_rateset_to_mask(
8138 sband,
d1e33e65
JD		 8139 nla_data(tb[NL80211_TXRATE_HT]),
8140 nla_len(tb[NL80211_TXRATE_HT]),
8141 mask.control[band].ht_mcs))
24db78c0
SW		 8142 return -EINVAL;
8143 }
204e35a9
JD		 8144 if (tb[NL80211_TXRATE_VHT]) {
8145 if (!vht_set_mcs_mask(
8146 sband,
8147 nla_data(tb[NL80211_TXRATE_VHT]),
8148 mask.control[band].vht_mcs))
8149 return -EINVAL;
8150 }
0b9323f6
JD		 8151 if (tb[NL80211_TXRATE_GI]) {
8152 mask.control[band].gi =
8153 nla_get_u8(tb[NL80211_TXRATE_GI]);
8154 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8155 return -EINVAL;
8156 }
24db78c0
SW		 8157
8158 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8159 /* don't allow empty legacy rates if HT or VHT
8160 * are not even supported.
8161 */
8162 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8163 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8164 return -EINVAL;
8165
8166 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8167 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8168 goto out;
8169
8170 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8171 if (mask.control[band].vht_mcs[i])
8172 goto out;
24db78c0
SW		 8173
8174 /* legacy and mcs rates may not be both empty */
204e35a9 8175 return -EINVAL;
13ae75b1
JM		 8176 }
8177 }
8178
b9243ab0 8179out:
e35e4d28 8180 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8181}
8182
2e161f78 8183static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8184{
4c476991 8185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8186 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8187 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8188
8189 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8190 return -EINVAL;
8191
2e161f78
JB		 8192 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8193 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8194
71bbc994
JB		 8195 switch (wdev->iftype) {
8196 case NL80211_IFTYPE_STATION:
8197 case NL80211_IFTYPE_ADHOC:
8198 case NL80211_IFTYPE_P2P_CLIENT:
8199 case NL80211_IFTYPE_AP:
8200 case NL80211_IFTYPE_AP_VLAN:
8201 case NL80211_IFTYPE_MESH_POINT:
8202 case NL80211_IFTYPE_P2P_GO:
98104fde 8203 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8204 break;
8205 default:
4c476991 8206 return -EOPNOTSUPP;
71bbc994 8207 }
026331c4
JM		 8208
8209 /* not much point in registering if we can't reply */
4c476991
JB		 8210 if (!rdev->ops->mgmt_tx)
8211 return -EOPNOTSUPP;
026331c4 8212
15e47304 8213 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8214 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8215 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8216}
8217
2e161f78 8218static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8219{
4c476991 8220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8221 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8222 struct cfg80211_chan_def chandef;
026331c4 8223 int err;
d64d373f 8224 void *hdr = NULL;
026331c4 8225 u64 cookie;
e247bd90 8226 struct sk_buff *msg = NULL;
b176e629
AO		 8227 struct cfg80211_mgmt_tx_params params = {
8228 .dont_wait_for_ack =
8229 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8230 };
026331c4 8231
683b6d3b 8232 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8233 return -EINVAL;
8234
4c476991
JB		 8235 if (!rdev->ops->mgmt_tx)
8236 return -EOPNOTSUPP;
026331c4 8237
71bbc994 8238 switch (wdev->iftype) {
ea141b75
AQ		 8239 case NL80211_IFTYPE_P2P_DEVICE:
8240 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8241 return -EINVAL;
71bbc994
JB		 8242 case NL80211_IFTYPE_STATION:
8243 case NL80211_IFTYPE_ADHOC:
8244 case NL80211_IFTYPE_P2P_CLIENT:
8245 case NL80211_IFTYPE_AP:
8246 case NL80211_IFTYPE_AP_VLAN:
8247 case NL80211_IFTYPE_MESH_POINT:
8248 case NL80211_IFTYPE_P2P_GO:
8249 break;
8250 default:
4c476991 8251 return -EOPNOTSUPP;
71bbc994 8252 }
026331c4 8253
f7ca38df 8254 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8255 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8256 return -EINVAL;
b176e629 8257 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8258
8259 /*
8260 * We should wait on the channel for at least a minimum amount
8261 * of time (10ms) but no longer than the driver supports.
8262 */
b176e629
AO		 8263 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8264 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8265 return -EINVAL;
8266
f7ca38df
JB		 8267 }
8268
b176e629 8269 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8270
b176e629 8271 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8272 return -EINVAL;
8273
b176e629 8274 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8275
ea141b75
AQ		 8276 /* get the channel if any has been specified, otherwise pass NULL to
8277 * the driver. The latter will use the current one
8278 */
8279 chandef.chan = NULL;
8280 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8281 err = nl80211_parse_chandef(rdev, info, &chandef);
8282 if (err)
8283 return err;
8284 }
8285
b176e629 8286 if (!chandef.chan && params.offchan)
ea141b75 8287 return -EINVAL;
026331c4 8288
34d22ce2
AO		 8289 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8290 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8291
8292 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8293 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8294 int i;
8295
8296 if (len % sizeof(u16))
8297 return -EINVAL;
8298
8299 params.n_csa_offsets = len / sizeof(u16);
8300 params.csa_offsets =
8301 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8302
8303 /* check that all the offsets fit the frame */
8304 for (i = 0; i < params.n_csa_offsets; i++) {
8305 if (params.csa_offsets[i] >= params.len)
8306 return -EINVAL;
8307 }
8308 }
8309
b176e629 8310 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8312 if (!msg)
8313 return -ENOMEM;
026331c4 8314
15e47304 8315 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8316 NL80211_CMD_FRAME);
cb35fba3
DC		 8317 if (!hdr) {
8318 err = -ENOBUFS;
e247bd90
JB		 8319 goto free_msg;
8320 }
026331c4 8321 }
e247bd90 8322
b176e629
AO		 8323 params.chan = chandef.chan;
8324 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8325 if (err)
8326 goto free_msg;
8327
e247bd90 8328 if (msg) {
9360ffd1
DM		 8329 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8330 goto nla_put_failure;
026331c4 8331
e247bd90
JB		 8332 genlmsg_end(msg, hdr);
8333 return genlmsg_reply(msg, info);
8334 }
8335
8336 return 0;
026331c4
JM		 8337
8338 nla_put_failure:
8339 err = -ENOBUFS;
8340 free_msg:
8341 nlmsg_free(msg);
026331c4
JM		 8342 return err;
8343}
8344
f7ca38df
JB		 8345static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8346{
8347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8348 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8349 u64 cookie;
8350
8351 if (!info->attrs[NL80211_ATTR_COOKIE])
8352 return -EINVAL;
8353
8354 if (!rdev->ops->mgmt_tx_cancel_wait)
8355 return -EOPNOTSUPP;
8356
71bbc994
JB		 8357 switch (wdev->iftype) {
8358 case NL80211_IFTYPE_STATION:
8359 case NL80211_IFTYPE_ADHOC:
8360 case NL80211_IFTYPE_P2P_CLIENT:
8361 case NL80211_IFTYPE_AP:
8362 case NL80211_IFTYPE_AP_VLAN:
8363 case NL80211_IFTYPE_P2P_GO:
98104fde 8364 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8365 break;
8366 default:
f7ca38df 8367 return -EOPNOTSUPP;
71bbc994 8368 }
f7ca38df
JB		 8369
8370 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8371
e35e4d28 8372 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8373}
8374
ffb9eb3d
KV		 8375static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8376{
4c476991 8377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8378 struct wireless_dev *wdev;
4c476991 8379 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8380 u8 ps_state;
8381 bool state;
8382 int err;
8383
4c476991
JB		 8384 if (!info->attrs[NL80211_ATTR_PS_STATE])
8385 return -EINVAL;
ffb9eb3d
KV		 8386
8387 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8388
4c476991
JB		 8389 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8390 return -EINVAL;
ffb9eb3d
KV		 8391
8392 wdev = dev->ieee80211_ptr;
8393
4c476991
JB		 8394 if (!rdev->ops->set_power_mgmt)
8395 return -EOPNOTSUPP;
ffb9eb3d
KV		 8396
8397 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8398
8399 if (state == wdev->ps)
4c476991 8400 return 0;
ffb9eb3d 8401
e35e4d28 8402 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8403 if (!err)
8404 wdev->ps = state;
ffb9eb3d
KV		 8405 return err;
8406}
8407
8408static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8409{
4c476991 8410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8411 enum nl80211_ps_state ps_state;
8412 struct wireless_dev *wdev;
4c476991 8413 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8414 struct sk_buff *msg;
8415 void *hdr;
8416 int err;
8417
ffb9eb3d
KV		 8418 wdev = dev->ieee80211_ptr;
8419
4c476991
JB		 8420 if (!rdev->ops->set_power_mgmt)
8421 return -EOPNOTSUPP;
ffb9eb3d
KV		 8422
8423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8424 if (!msg)
8425 return -ENOMEM;
ffb9eb3d 8426
15e47304 8427 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8428 NL80211_CMD_GET_POWER_SAVE);
8429 if (!hdr) {
4c476991 8430 err = -ENOBUFS;
ffb9eb3d
KV		 8431 goto free_msg;
8432 }
8433
8434 if (wdev->ps)
8435 ps_state = NL80211_PS_ENABLED;
8436 else
8437 ps_state = NL80211_PS_DISABLED;
8438
9360ffd1
DM		 8439 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8440 goto nla_put_failure;
ffb9eb3d
KV		 8441
8442 genlmsg_end(msg, hdr);
4c476991 8443 return genlmsg_reply(msg, info);
ffb9eb3d 8444
4c476991 8445 nla_put_failure:
ffb9eb3d 8446 err = -ENOBUFS;
4c476991 8447 free_msg:
ffb9eb3d 8448 nlmsg_free(msg);
ffb9eb3d
KV		 8449 return err;
8450}
8451
94e860f1
JB		 8452static const struct nla_policy
8453nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8454 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8455 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8456 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8457 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8458 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8459 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8460};
8461
84f10708 8462static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8463 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8464{
8465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8466 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8467 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8468
d9d8b019 8469 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8470 return -EINVAL;
8471
84f10708
TP		 8472 if (!rdev->ops->set_cqm_txe_config)
8473 return -EOPNOTSUPP;
8474
8475 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8476 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8477 return -EOPNOTSUPP;
8478
e35e4d28 8479 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8480}
8481
d6dc1a38
JO		 8482static int nl80211_set_cqm_rssi(struct genl_info *info,
8483 s32 threshold, u32 hysteresis)
8484{
4c476991 8485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8486 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8487 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8488
8489 if (threshold > 0)
8490 return -EINVAL;
8491
1da5fcc8
JB		 8492 /* disabling - hysteresis should also be zero then */
8493 if (threshold == 0)
8494 hysteresis = 0;
d6dc1a38 8495
4c476991
JB		 8496 if (!rdev->ops->set_cqm_rssi_config)
8497 return -EOPNOTSUPP;
d6dc1a38 8498
074ac8df 8499 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8500 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8501 return -EOPNOTSUPP;
d6dc1a38 8502
e35e4d28 8503 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8504}
8505
8506static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8507{
8508 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8509 struct nlattr *cqm;
8510 int err;
8511
8512 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8513 if (!cqm)
8514 return -EINVAL;
d6dc1a38
JO		 8515
8516 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8517 nl80211_attr_cqm_policy);
8518 if (err)
1da5fcc8 8519 return err;
d6dc1a38
JO		 8520
8521 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8522 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8523 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8524 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8525
1da5fcc8
JB		 8526 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8527 }
8528
8529 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8530 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8531 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8532 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8533 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8534 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8535
8536 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8537 }
8538
8539 return -EINVAL;
d6dc1a38
JO		 8540}
8541
6e0bd6c3
RL		 8542static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8543{
8544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8545 struct net_device *dev = info->user_ptr[1];
8546 struct ocb_setup setup = {};
8547 int err;
8548
8549 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8550 if (err)
8551 return err;
8552
8553 return cfg80211_join_ocb(rdev, dev, &setup);
8554}
8555
8556static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8557{
8558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8559 struct net_device *dev = info->user_ptr[1];
8560
8561 return cfg80211_leave_ocb(rdev, dev);
8562}
8563
29cbe68c
JB		 8564static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8565{
8566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8567 struct net_device *dev = info->user_ptr[1];
8568 struct mesh_config cfg;
c80d545d 8569 struct mesh_setup setup;
29cbe68c
JB		 8570 int err;
8571
8572 /* start with default */
8573 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8574 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8575
24bdd9f4 8576 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8577 /* and parse parameters if given */
24bdd9f4 8578 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8579 if (err)
8580 return err;
8581 }
8582
8583 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8584 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8585 return -EINVAL;
8586
c80d545d
JC		 8587 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8588 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8589
4bb62344
CYY		 8590 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8591 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8592 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8593 return -EINVAL;
8594
9bdbf04d
MP		 8595 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8596 setup.beacon_interval =
8597 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8598 if (setup.beacon_interval < 10 ||
8599 setup.beacon_interval > 10000)
8600 return -EINVAL;
8601 }
8602
8603 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8604 setup.dtim_period =
8605 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8606 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8607 return -EINVAL;
8608 }
8609
c80d545d
JC		 8610 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8611 /* parse additional setup parameters if given */
8612 err = nl80211_parse_mesh_setup(info, &setup);
8613 if (err)
8614 return err;
8615 }
8616
d37bb18a
TP		 8617 if (setup.user_mpm)
8618 cfg.auto_open_plinks = false;
8619
cc1d2806 8620 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8621 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8622 if (err)
8623 return err;
cc1d2806
JB		 8624 } else {
8625 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8626 setup.chandef.chan = NULL;
cc1d2806
JB		 8627 }
8628
ffb3cf30
AN		 8629 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8630 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8631 int n_rates =
8632 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8633 struct ieee80211_supported_band *sband;
8634
8635 if (!setup.chandef.chan)
8636 return -EINVAL;
8637
8638 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8639
8640 err = ieee80211_get_ratemask(sband, rates, n_rates,
8641 &setup.basic_rates);
8642 if (err)
8643 return err;
8644 }
8645
c80d545d 8646 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8647}
8648
8649static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8650{
8651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8652 struct net_device *dev = info->user_ptr[1];
8653
8654 return cfg80211_leave_mesh(rdev, dev);
8655}
8656
dfb89c56 8657#ifdef CONFIG_PM
bb92d199
AK		 8658static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8659 struct cfg80211_registered_device *rdev)
8660{
6abb9cb9 8661 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8662 struct nlattr *nl_pats, *nl_pat;
8663 int i, pat_len;
8664
6abb9cb9 8665 if (!wowlan->n_patterns)
bb92d199
AK		 8666 return 0;
8667
8668 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8669 if (!nl_pats)
8670 return -ENOBUFS;
8671
6abb9cb9 8672 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8673 nl_pat = nla_nest_start(msg, i + 1);
8674 if (!nl_pat)
8675 return -ENOBUFS;
6abb9cb9 8676 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8677 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8678 wowlan->patterns[i].mask) ||
50ac6607
AK		 8679 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8680 wowlan->patterns[i].pattern) ||
8681 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8682 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8683 return -ENOBUFS;
8684 nla_nest_end(msg, nl_pat);
8685 }
8686 nla_nest_end(msg, nl_pats);
8687
8688 return 0;
8689}
8690
2a0e047e
JB		 8691static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8692 struct cfg80211_wowlan_tcp *tcp)
8693{
8694 struct nlattr *nl_tcp;
8695
8696 if (!tcp)
8697 return 0;
8698
8699 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8700 if (!nl_tcp)
8701 return -ENOBUFS;
8702
8703 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8704 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8705 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8706 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8707 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8708 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8709 tcp->payload_len, tcp->payload) ||
8710 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8711 tcp->data_interval) ||
8712 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8713 tcp->wake_len, tcp->wake_data) ||
8714 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8715 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8716 return -ENOBUFS;
8717
8718 if (tcp->payload_seq.len &&
8719 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8720 sizeof(tcp->payload_seq), &tcp->payload_seq))
8721 return -ENOBUFS;
8722
8723 if (tcp->payload_tok.len &&
8724 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8725 sizeof(tcp->payload_tok) + tcp->tokens_size,
8726 &tcp->payload_tok))
8727 return -ENOBUFS;
8728
e248ad30
JB		 8729 nla_nest_end(msg, nl_tcp);
8730
2a0e047e
JB		 8731 return 0;
8732}
8733
ff1b6e69
JB		 8734static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8735{
8736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8737 struct sk_buff *msg;
8738 void *hdr;
2a0e047e 8739 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8740
964dc9e2 8741 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8742 return -EOPNOTSUPP;
8743
6abb9cb9 8744 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8745 /* adjust size to have room for all the data */
6abb9cb9
JB		 8746 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8747 rdev->wiphy.wowlan_config->tcp->payload_len +
8748 rdev->wiphy.wowlan_config->tcp->wake_len +
8749 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8750 }
8751
8752 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8753 if (!msg)
8754 return -ENOMEM;
8755
15e47304 8756 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8757 NL80211_CMD_GET_WOWLAN);
8758 if (!hdr)
8759 goto nla_put_failure;
8760
6abb9cb9 8761 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8762 struct nlattr *nl_wowlan;
8763
8764 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8765 if (!nl_wowlan)
8766 goto nla_put_failure;
8767
6abb9cb9 8768 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8769 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8770 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8771 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8772 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8773 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8774 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8775 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8776 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8777 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8778 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8779 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8780 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8781 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8782 goto nla_put_failure;
2a0e047e 8783
bb92d199
AK		 8784 if (nl80211_send_wowlan_patterns(msg, rdev))
8785 goto nla_put_failure;
2a0e047e 8786
6abb9cb9
JB		 8787 if (nl80211_send_wowlan_tcp(msg,
8788 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8789 goto nla_put_failure;
8790
ff1b6e69
JB		 8791 nla_nest_end(msg, nl_wowlan);
8792 }
8793
8794 genlmsg_end(msg, hdr);
8795 return genlmsg_reply(msg, info);
8796
8797nla_put_failure:
8798 nlmsg_free(msg);
8799 return -ENOBUFS;
8800}
8801
2a0e047e
JB		 8802static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8803 struct nlattr *attr,
8804 struct cfg80211_wowlan *trig)
8805{
8806 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8807 struct cfg80211_wowlan_tcp *cfg;
8808 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8809 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8810 u32 size;
8811 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8812 int err, port;
8813
964dc9e2 8814 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8815 return -EINVAL;
8816
8817 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8818 nla_data(attr), nla_len(attr),
8819 nl80211_wowlan_tcp_policy);
8820 if (err)
8821 return err;
8822
8823 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8824 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8825 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8826 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8827 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8828 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8829 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8830 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8831 return -EINVAL;
8832
8833 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8834 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8835 return -EINVAL;
8836
8837 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8838 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8839 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8840 return -EINVAL;
8841
8842 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8843 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8844 return -EINVAL;
8845
8846 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8847 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8848 return -EINVAL;
8849
8850 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8851 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8852
8853 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8854 tokens_size = tokln - sizeof(*tok);
8855
8856 if (!tok->len || tokens_size % tok->len)
8857 return -EINVAL;
964dc9e2 8858 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8859 return -EINVAL;
964dc9e2 8860 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8861 return -EINVAL;
964dc9e2 8862 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8863 return -EINVAL;
964dc9e2 8864 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8865 return -EINVAL;
8866 if (tok->offset + tok->len > data_size)
8867 return -EINVAL;
8868 }
8869
8870 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8871 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8872 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8873 return -EINVAL;
8874 if (seq->len == 0 || seq->len > 4)
8875 return -EINVAL;
8876 if (seq->len + seq->offset > data_size)
8877 return -EINVAL;
8878 }
8879
8880 size = sizeof(*cfg);
8881 size += data_size;
8882 size += wake_size + wake_mask_size;
8883 size += tokens_size;
8884
8885 cfg = kzalloc(size, GFP_KERNEL);
8886 if (!cfg)
8887 return -ENOMEM;
8888 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8889 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8890 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8891 ETH_ALEN);
8892 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8893 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8894 else
8895 port = 0;
8896#ifdef CONFIG_INET
8897 /* allocate a socket and port for it and use it */
8898 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8899 IPPROTO_TCP, &cfg->sock, 1);
8900 if (err) {
8901 kfree(cfg);
8902 return err;
8903 }
8904 if (inet_csk_get_port(cfg->sock->sk, port)) {
8905 sock_release(cfg->sock);
8906 kfree(cfg);
8907 return -EADDRINUSE;
8908 }
8909 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8910#else
8911 if (!port) {
8912 kfree(cfg);
8913 return -EINVAL;
8914 }
8915 cfg->src_port = port;
8916#endif
8917
8918 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8919 cfg->payload_len = data_size;
8920 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8921 memcpy((void *)cfg->payload,
8922 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8923 data_size);
8924 if (seq)
8925 cfg->payload_seq = *seq;
8926 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8927 cfg->wake_len = wake_size;
8928 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8929 memcpy((void *)cfg->wake_data,
8930 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8931 wake_size);
8932 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8933 data_size + wake_size;
8934 memcpy((void *)cfg->wake_mask,
8935 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8936 wake_mask_size);
8937 if (tok) {
8938 cfg->tokens_size = tokens_size;
8939 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8940 }
8941
8942 trig->tcp = cfg;
8943
8944 return 0;
8945}
8946
8cd4d456
LC		 8947static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
8948 const struct wiphy_wowlan_support *wowlan,
8949 struct nlattr *attr,
8950 struct cfg80211_wowlan *trig)
8951{
8952 struct nlattr **tb;
8953 int err;
8954
8955 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
8956 if (!tb)
8957 return -ENOMEM;
8958
8959 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
8960 err = -EOPNOTSUPP;
8961 goto out;
8962 }
8963
8964 err = nla_parse(tb, NL80211_ATTR_MAX,
8965 nla_data(attr), nla_len(attr),
8966 nl80211_policy);
8967 if (err)
8968 goto out;
8969
ad2b26ab 8970 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 8971 err = PTR_ERR_OR_ZERO(trig->nd_config);
8972 if (err)
8973 trig->nd_config = NULL;
8974
8975out:
8976 kfree(tb);
8977 return err;
8978}
8979
ff1b6e69
JB		 8980static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8981{
8982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8983 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8984 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8985 struct cfg80211_wowlan *ntrig;
964dc9e2 8986 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8987 int err, i;
6abb9cb9 8988 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8989
964dc9e2 8990 if (!wowlan)
ff1b6e69
JB		 8991 return -EOPNOTSUPP;
8992
ae33bd81
JB		 8993 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8994 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8995 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8996 goto set_wakeup;
8997 }
ff1b6e69
JB		 8998
8999 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9000 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9001 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9002 nl80211_wowlan_policy);
9003 if (err)
9004 return err;
9005
9006 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9007 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9008 return -EINVAL;
9009 new_triggers.any = true;
9010 }
9011
9012 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9013 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9014 return -EINVAL;
9015 new_triggers.disconnect = true;
9016 }
9017
9018 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9019 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9020 return -EINVAL;
9021 new_triggers.magic_pkt = true;
9022 }
9023
77dbbb13
JB		 9024 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9025 return -EINVAL;
9026
9027 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9028 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9029 return -EINVAL;
9030 new_triggers.gtk_rekey_failure = true;
9031 }
9032
9033 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9034 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9035 return -EINVAL;
9036 new_triggers.eap_identity_req = true;
9037 }
9038
9039 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9040 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9041 return -EINVAL;
9042 new_triggers.four_way_handshake = true;
9043 }
9044
9045 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9046 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9047 return -EINVAL;
9048 new_triggers.rfkill_release = true;
9049 }
9050
ff1b6e69
JB		 9051 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9052 struct nlattr *pat;
9053 int n_patterns = 0;
bb92d199 9054 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9055 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 9056
9057 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9058 rem)
9059 n_patterns++;
9060 if (n_patterns > wowlan->n_patterns)
9061 return -EINVAL;
9062
9063 new_triggers.patterns = kcalloc(n_patterns,
9064 sizeof(new_triggers.patterns[0]),
9065 GFP_KERNEL);
9066 if (!new_triggers.patterns)
9067 return -ENOMEM;
9068
9069 new_triggers.n_patterns = n_patterns;
9070 i = 0;
9071
9072 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9073 rem) {
922bd80f
JB		 9074 u8 *mask_pat;
9075
50ac6607
AK		 9076 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9077 nla_len(pat), NULL);
ff1b6e69 9078 err = -EINVAL;
50ac6607
AK		 9079 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9080 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9081 goto error;
50ac6607 9082 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9083 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9084 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9085 goto error;
9086 if (pat_len > wowlan->pattern_max_len ||
9087 pat_len < wowlan->pattern_min_len)
9088 goto error;
9089
50ac6607 9090 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9091 pkt_offset = 0;
9092 else
9093 pkt_offset = nla_get_u32(
50ac6607 9094 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9095 if (pkt_offset > wowlan->max_pkt_offset)
9096 goto error;
9097 new_triggers.patterns[i].pkt_offset = pkt_offset;
9098
922bd80f
JB		 9099 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9100 if (!mask_pat) {
ff1b6e69
JB		 9101 err = -ENOMEM;
9102 goto error;
9103 }
922bd80f
JB		 9104 new_triggers.patterns[i].mask = mask_pat;
9105 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9106 mask_len);
922bd80f
JB		 9107 mask_pat += mask_len;
9108 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9109 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9110 memcpy(mask_pat,
50ac6607 9111 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9112 pat_len);
9113 i++;
9114 }
9115 }
9116
2a0e047e
JB		 9117 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9118 err = nl80211_parse_wowlan_tcp(
9119 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9120 &new_triggers);
9121 if (err)
9122 goto error;
9123 }
9124
8cd4d456
LC		 9125 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9126 err = nl80211_parse_wowlan_nd(
9127 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9128 &new_triggers);
9129 if (err)
9130 goto error;
9131 }
9132
ae33bd81
JB		 9133 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9134 if (!ntrig) {
9135 err = -ENOMEM;
9136 goto error;
ff1b6e69 9137 }
ae33bd81 9138 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9139 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9140
ae33bd81 9141 set_wakeup:
6abb9cb9
JB		 9142 if (rdev->ops->set_wakeup &&
9143 prev_enabled != !!rdev->wiphy.wowlan_config)
9144 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9145
ff1b6e69
JB		 9146 return 0;
9147 error:
9148 for (i = 0; i < new_triggers.n_patterns; i++)
9149 kfree(new_triggers.patterns[i].mask);
9150 kfree(new_triggers.patterns);
2a0e047e
JB		 9151 if (new_triggers.tcp && new_triggers.tcp->sock)
9152 sock_release(new_triggers.tcp->sock);
9153 kfree(new_triggers.tcp);
ff1b6e69
JB		 9154 return err;
9155}
dfb89c56 9156#endif
ff1b6e69 9157
be29b99a
AK		 9158static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9159 struct cfg80211_registered_device *rdev)
9160{
9161 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9162 int i, j, pat_len;
9163 struct cfg80211_coalesce_rules *rule;
9164
9165 if (!rdev->coalesce->n_rules)
9166 return 0;
9167
9168 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9169 if (!nl_rules)
9170 return -ENOBUFS;
9171
9172 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9173 nl_rule = nla_nest_start(msg, i + 1);
9174 if (!nl_rule)
9175 return -ENOBUFS;
9176
9177 rule = &rdev->coalesce->rules[i];
9178 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9179 rule->delay))
9180 return -ENOBUFS;
9181
9182 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9183 rule->condition))
9184 return -ENOBUFS;
9185
9186 nl_pats = nla_nest_start(msg,
9187 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9188 if (!nl_pats)
9189 return -ENOBUFS;
9190
9191 for (j = 0; j < rule->n_patterns; j++) {
9192 nl_pat = nla_nest_start(msg, j + 1);
9193 if (!nl_pat)
9194 return -ENOBUFS;
9195 pat_len = rule->patterns[j].pattern_len;
9196 if (nla_put(msg, NL80211_PKTPAT_MASK,
9197 DIV_ROUND_UP(pat_len, 8),
9198 rule->patterns[j].mask) ||
9199 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9200 rule->patterns[j].pattern) ||
9201 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9202 rule->patterns[j].pkt_offset))
9203 return -ENOBUFS;
9204 nla_nest_end(msg, nl_pat);
9205 }
9206 nla_nest_end(msg, nl_pats);
9207 nla_nest_end(msg, nl_rule);
9208 }
9209 nla_nest_end(msg, nl_rules);
9210
9211 return 0;
9212}
9213
9214static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9215{
9216 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9217 struct sk_buff *msg;
9218 void *hdr;
9219
9220 if (!rdev->wiphy.coalesce)
9221 return -EOPNOTSUPP;
9222
9223 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9224 if (!msg)
9225 return -ENOMEM;
9226
9227 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9228 NL80211_CMD_GET_COALESCE);
9229 if (!hdr)
9230 goto nla_put_failure;
9231
9232 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9233 goto nla_put_failure;
9234
9235 genlmsg_end(msg, hdr);
9236 return genlmsg_reply(msg, info);
9237
9238nla_put_failure:
9239 nlmsg_free(msg);
9240 return -ENOBUFS;
9241}
9242
9243void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9244{
9245 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9246 int i, j;
9247 struct cfg80211_coalesce_rules *rule;
9248
9249 if (!coalesce)
9250 return;
9251
9252 for (i = 0; i < coalesce->n_rules; i++) {
9253 rule = &coalesce->rules[i];
9254 for (j = 0; j < rule->n_patterns; j++)
9255 kfree(rule->patterns[j].mask);
9256 kfree(rule->patterns);
9257 }
9258 kfree(coalesce->rules);
9259 kfree(coalesce);
9260 rdev->coalesce = NULL;
9261}
9262
9263static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9264 struct nlattr *rule,
9265 struct cfg80211_coalesce_rules *new_rule)
9266{
9267 int err, i;
9268 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9269 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9270 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9271 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9272
9273 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9274 nla_len(rule), nl80211_coalesce_policy);
9275 if (err)
9276 return err;
9277
9278 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9279 new_rule->delay =
9280 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9281 if (new_rule->delay > coalesce->max_delay)
9282 return -EINVAL;
9283
9284 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9285 new_rule->condition =
9286 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9287 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9288 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9289 return -EINVAL;
9290
9291 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9292 return -EINVAL;
9293
9294 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9295 rem)
9296 n_patterns++;
9297 if (n_patterns > coalesce->n_patterns)
9298 return -EINVAL;
9299
9300 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9301 GFP_KERNEL);
9302 if (!new_rule->patterns)
9303 return -ENOMEM;
9304
9305 new_rule->n_patterns = n_patterns;
9306 i = 0;
9307
9308 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9309 rem) {
922bd80f
JB		 9310 u8 *mask_pat;
9311
be29b99a
AK		 9312 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9313 nla_len(pat), NULL);
9314 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9315 !pat_tb[NL80211_PKTPAT_PATTERN])
9316 return -EINVAL;
9317 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9318 mask_len = DIV_ROUND_UP(pat_len, 8);
9319 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9320 return -EINVAL;
9321 if (pat_len > coalesce->pattern_max_len ||
9322 pat_len < coalesce->pattern_min_len)
9323 return -EINVAL;
9324
9325 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9326 pkt_offset = 0;
9327 else
9328 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9329 if (pkt_offset > coalesce->max_pkt_offset)
9330 return -EINVAL;
9331 new_rule->patterns[i].pkt_offset = pkt_offset;
9332
922bd80f
JB		 9333 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9334 if (!mask_pat)
be29b99a 9335 return -ENOMEM;
922bd80f
JB		 9336
9337 new_rule->patterns[i].mask = mask_pat;
9338 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9339 mask_len);
9340
9341 mask_pat += mask_len;
9342 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9343 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9344 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9345 pat_len);
be29b99a
AK		 9346 i++;
9347 }
9348
9349 return 0;
9350}
9351
9352static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9353{
9354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9355 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9356 struct cfg80211_coalesce new_coalesce = {};
9357 struct cfg80211_coalesce *n_coalesce;
9358 int err, rem_rule, n_rules = 0, i, j;
9359 struct nlattr *rule;
9360 struct cfg80211_coalesce_rules *tmp_rule;
9361
9362 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9363 return -EOPNOTSUPP;
9364
9365 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9366 cfg80211_rdev_free_coalesce(rdev);
9367 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9368 return 0;
9369 }
9370
9371 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9372 rem_rule)
9373 n_rules++;
9374 if (n_rules > coalesce->n_rules)
9375 return -EINVAL;
9376
9377 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9378 GFP_KERNEL);
9379 if (!new_coalesce.rules)
9380 return -ENOMEM;
9381
9382 new_coalesce.n_rules = n_rules;
9383 i = 0;
9384
9385 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9386 rem_rule) {
9387 err = nl80211_parse_coalesce_rule(rdev, rule,
9388 &new_coalesce.rules[i]);
9389 if (err)
9390 goto error;
9391
9392 i++;
9393 }
9394
9395 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9396 if (err)
9397 goto error;
9398
9399 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9400 if (!n_coalesce) {
9401 err = -ENOMEM;
9402 goto error;
9403 }
9404 cfg80211_rdev_free_coalesce(rdev);
9405 rdev->coalesce = n_coalesce;
9406
9407 return 0;
9408error:
9409 for (i = 0; i < new_coalesce.n_rules; i++) {
9410 tmp_rule = &new_coalesce.rules[i];
9411 for (j = 0; j < tmp_rule->n_patterns; j++)
9412 kfree(tmp_rule->patterns[j].mask);
9413 kfree(tmp_rule->patterns);
9414 }
9415 kfree(new_coalesce.rules);
9416
9417 return err;
9418}
9419
e5497d76
JB		 9420static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9421{
9422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9423 struct net_device *dev = info->user_ptr[1];
9424 struct wireless_dev *wdev = dev->ieee80211_ptr;
9425 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9426 struct cfg80211_gtk_rekey_data rekey_data;
9427 int err;
9428
9429 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9430 return -EINVAL;
9431
9432 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9433 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9434 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9435 nl80211_rekey_policy);
9436 if (err)
9437 return err;
9438
9439 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9440 return -ERANGE;
9441 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9442 return -ERANGE;
9443 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9444 return -ERANGE;
9445
78f686ca
JB		 9446 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9447 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9448 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9449
9450 wdev_lock(wdev);
9451 if (!wdev->current_bss) {
9452 err = -ENOTCONN;
9453 goto out;
9454 }
9455
9456 if (!rdev->ops->set_rekey_data) {
9457 err = -EOPNOTSUPP;
9458 goto out;
9459 }
9460
e35e4d28 9461 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9462 out:
9463 wdev_unlock(wdev);
9464 return err;
9465}
9466
28946da7
JB		 9467static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9468 struct genl_info *info)
9469{
9470 struct net_device *dev = info->user_ptr[1];
9471 struct wireless_dev *wdev = dev->ieee80211_ptr;
9472
9473 if (wdev->iftype != NL80211_IFTYPE_AP &&
9474 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9475 return -EINVAL;
9476
15e47304 9477 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9478 return -EBUSY;
9479
15e47304 9480 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9481 return 0;
9482}
9483
7f6cf311
JB		 9484static int nl80211_probe_client(struct sk_buff *skb,
9485 struct genl_info *info)
9486{
9487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9488 struct net_device *dev = info->user_ptr[1];
9489 struct wireless_dev *wdev = dev->ieee80211_ptr;
9490 struct sk_buff *msg;
9491 void *hdr;
9492 const u8 *addr;
9493 u64 cookie;
9494 int err;
9495
9496 if (wdev->iftype != NL80211_IFTYPE_AP &&
9497 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9498 return -EOPNOTSUPP;
9499
9500 if (!info->attrs[NL80211_ATTR_MAC])
9501 return -EINVAL;
9502
9503 if (!rdev->ops->probe_client)
9504 return -EOPNOTSUPP;
9505
9506 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9507 if (!msg)
9508 return -ENOMEM;
9509
15e47304 9510 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9511 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9512 if (!hdr) {
9513 err = -ENOBUFS;
7f6cf311
JB		 9514 goto free_msg;
9515 }
9516
9517 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9518
e35e4d28 9519 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9520 if (err)
9521 goto free_msg;
9522
9360ffd1
DM		 9523 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9524 goto nla_put_failure;
7f6cf311
JB		 9525
9526 genlmsg_end(msg, hdr);
9527
9528 return genlmsg_reply(msg, info);
9529
9530 nla_put_failure:
9531 err = -ENOBUFS;
9532 free_msg:
9533 nlmsg_free(msg);
9534 return err;
9535}
9536
5e760230
JB		 9537static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9538{
9539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9540 struct cfg80211_beacon_registration *reg, *nreg;
9541 int rv;
5e760230
JB		 9542
9543 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9544 return -EOPNOTSUPP;
9545
37c73b5f
BG		 9546 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9547 if (!nreg)
9548 return -ENOMEM;
9549
9550 /* First, check if already registered. */
9551 spin_lock_bh(&rdev->beacon_registrations_lock);
9552 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9553 if (reg->nlportid == info->snd_portid) {
9554 rv = -EALREADY;
9555 goto out_err;
9556 }
9557 }
9558 /* Add it to the list */
9559 nreg->nlportid = info->snd_portid;
9560 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9561
37c73b5f 9562 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9563
9564 return 0;
37c73b5f
BG		 9565out_err:
9566 spin_unlock_bh(&rdev->beacon_registrations_lock);
9567 kfree(nreg);
9568 return rv;
5e760230
JB		 9569}
9570
98104fde
JB		 9571static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9572{
9573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9574 struct wireless_dev *wdev = info->user_ptr[1];
9575 int err;
9576
9577 if (!rdev->ops->start_p2p_device)
9578 return -EOPNOTSUPP;
9579
9580 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9581 return -EOPNOTSUPP;
9582
9583 if (wdev->p2p_started)
9584 return 0;
9585
b6a55015
LC		 9586 if (rfkill_blocked(rdev->rfkill))
9587 return -ERFKILL;
98104fde 9588
eeb126e9 9589 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9590 if (err)
9591 return err;
9592
9593 wdev->p2p_started = true;
98104fde 9594 rdev->opencount++;
98104fde
JB		 9595
9596 return 0;
9597}
9598
9599static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9600{
9601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9602 struct wireless_dev *wdev = info->user_ptr[1];
9603
9604 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9605 return -EOPNOTSUPP;
9606
9607 if (!rdev->ops->stop_p2p_device)
9608 return -EOPNOTSUPP;
9609
f9f47529 9610 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9611
9612 return 0;
9613}
9614
3713b4e3
JB		 9615static int nl80211_get_protocol_features(struct sk_buff *skb,
9616 struct genl_info *info)
9617{
9618 void *hdr;
9619 struct sk_buff *msg;
9620
9621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9622 if (!msg)
9623 return -ENOMEM;
9624
9625 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9626 NL80211_CMD_GET_PROTOCOL_FEATURES);
9627 if (!hdr)
9628 goto nla_put_failure;
9629
9630 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9631 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9632 goto nla_put_failure;
9633
9634 genlmsg_end(msg, hdr);
9635 return genlmsg_reply(msg, info);
9636
9637 nla_put_failure:
9638 kfree_skb(msg);
9639 return -ENOBUFS;
9640}
9641
355199e0
JM		 9642static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9643{
9644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9645 struct cfg80211_update_ft_ies_params ft_params;
9646 struct net_device *dev = info->user_ptr[1];
9647
9648 if (!rdev->ops->update_ft_ies)
9649 return -EOPNOTSUPP;
9650
9651 if (!info->attrs[NL80211_ATTR_MDID] ||
9652 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9653 return -EINVAL;
9654
9655 memset(&ft_params, 0, sizeof(ft_params));
9656 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9657 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9658 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9659
9660 return rdev_update_ft_ies(rdev, dev, &ft_params);
9661}
9662
5de17984
AS		 9663static int nl80211_crit_protocol_start(struct sk_buff *skb,
9664 struct genl_info *info)
9665{
9666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9667 struct wireless_dev *wdev = info->user_ptr[1];
9668 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9669 u16 duration;
9670 int ret;
9671
9672 if (!rdev->ops->crit_proto_start)
9673 return -EOPNOTSUPP;
9674
9675 if (WARN_ON(!rdev->ops->crit_proto_stop))
9676 return -EINVAL;
9677
9678 if (rdev->crit_proto_nlportid)
9679 return -EBUSY;
9680
9681 /* determine protocol if provided */
9682 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9683 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9684
9685 if (proto >= NUM_NL80211_CRIT_PROTO)
9686 return -EINVAL;
9687
9688 /* timeout must be provided */
9689 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9690 return -EINVAL;
9691
9692 duration =
9693 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9694
9695 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9696 return -ERANGE;
9697
9698 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9699 if (!ret)
9700 rdev->crit_proto_nlportid = info->snd_portid;
9701
9702 return ret;
9703}
9704
9705static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9706 struct genl_info *info)
9707{
9708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9709 struct wireless_dev *wdev = info->user_ptr[1];
9710
9711 if (!rdev->ops->crit_proto_stop)
9712 return -EOPNOTSUPP;
9713
9714 if (rdev->crit_proto_nlportid) {
9715 rdev->crit_proto_nlportid = 0;
9716 rdev_crit_proto_stop(rdev, wdev);
9717 }
9718 return 0;
9719}
9720
ad7e718c
JB		 9721static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9722{
9723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9724 struct wireless_dev *wdev =
9725 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9726 int i, err;
9727 u32 vid, subcmd;
9728
9729 if (!rdev->wiphy.vendor_commands)
9730 return -EOPNOTSUPP;
9731
9732 if (IS_ERR(wdev)) {
9733 err = PTR_ERR(wdev);
9734 if (err != -EINVAL)
9735 return err;
9736 wdev = NULL;
9737 } else if (wdev->wiphy != &rdev->wiphy) {
9738 return -EINVAL;
9739 }
9740
9741 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9742 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9743 return -EINVAL;
9744
9745 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9746 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9747 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9748 const struct wiphy_vendor_command *vcmd;
9749 void *data = NULL;
9750 int len = 0;
9751
9752 vcmd = &rdev->wiphy.vendor_commands[i];
9753
9754 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9755 continue;
9756
9757 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9758 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9759 if (!wdev)
9760 return -EINVAL;
9761 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9762 !wdev->netdev)
9763 return -EINVAL;
9764
9765 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9766 if (wdev->netdev &&
9767 !netif_running(wdev->netdev))
9768 return -ENETDOWN;
9769 if (!wdev->netdev && !wdev->p2p_started)
9770 return -ENETDOWN;
9771 }
9772 } else {
9773 wdev = NULL;
9774 }
9775
9776 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9777 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9778 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9779 }
9780
9781 rdev->cur_cmd_info = info;
9782 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9783 data, len);
9784 rdev->cur_cmd_info = NULL;
9785 return err;
9786 }
9787
9788 return -EOPNOTSUPP;
9789}
9790
9791struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9792 enum nl80211_commands cmd,
9793 enum nl80211_attrs attr,
9794 int approxlen)
9795{
f26cbf40 9796 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9797
9798 if (WARN_ON(!rdev->cur_cmd_info))
9799 return NULL;
9800
9801 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9802 rdev->cur_cmd_info->snd_portid,
9803 rdev->cur_cmd_info->snd_seq,
567ffc35 9804 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9805}
9806EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9807
9808int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9809{
9810 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9811 void *hdr = ((void **)skb->cb)[1];
9812 struct nlattr *data = ((void **)skb->cb)[2];
9813
bd8c78e7
JB		 9814 /* clear CB data for netlink core to own from now on */
9815 memset(skb->cb, 0, sizeof(skb->cb));
9816
ad7e718c
JB		 9817 if (WARN_ON(!rdev->cur_cmd_info)) {
9818 kfree_skb(skb);
9819 return -EINVAL;
9820 }
9821
9822 nla_nest_end(skb, data);
9823 genlmsg_end(skb, hdr);
9824 return genlmsg_reply(skb, rdev->cur_cmd_info);
9825}
9826EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9827
9828
fa9ffc74
KP		 9829static int nl80211_set_qos_map(struct sk_buff *skb,
9830 struct genl_info *info)
9831{
9832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9833 struct cfg80211_qos_map *qos_map = NULL;
9834 struct net_device *dev = info->user_ptr[1];
9835 u8 *pos, len, num_des, des_len, des;
9836 int ret;
9837
9838 if (!rdev->ops->set_qos_map)
9839 return -EOPNOTSUPP;
9840
9841 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9842 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9843 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9844
9845 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9846 len > IEEE80211_QOS_MAP_LEN_MAX)
9847 return -EINVAL;
9848
9849 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9850 if (!qos_map)
9851 return -ENOMEM;
9852
9853 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9854 if (num_des) {
9855 des_len = num_des *
9856 sizeof(struct cfg80211_dscp_exception);
9857 memcpy(qos_map->dscp_exception, pos, des_len);
9858 qos_map->num_des = num_des;
9859 for (des = 0; des < num_des; des++) {
9860 if (qos_map->dscp_exception[des].up > 7) {
9861 kfree(qos_map);
9862 return -EINVAL;
9863 }
9864 }
9865 pos += des_len;
9866 }
9867 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9868 }
9869
9870 wdev_lock(dev->ieee80211_ptr);
9871 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9872 if (!ret)
9873 ret = rdev_set_qos_map(rdev, dev, qos_map);
9874 wdev_unlock(dev->ieee80211_ptr);
9875
9876 kfree(qos_map);
9877 return ret;
9878}
9879
960d01ac
JB		 9880static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9881{
9882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9883 struct net_device *dev = info->user_ptr[1];
9884 struct wireless_dev *wdev = dev->ieee80211_ptr;
9885 const u8 *peer;
9886 u8 tsid, up;
9887 u16 admitted_time = 0;
9888 int err;
9889
723e73ac 9890 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9891 return -EOPNOTSUPP;
9892
9893 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9894 !info->attrs[NL80211_ATTR_USER_PRIO])
9895 return -EINVAL;
9896
9897 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9898 if (tsid >= IEEE80211_NUM_TIDS)
9899 return -EINVAL;
9900
9901 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9902 if (up >= IEEE80211_NUM_UPS)
9903 return -EINVAL;
9904
9905 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9906 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9907 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9908 * need more attributes for that (e.g. BA session requirement);
9909 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9910 */
9911 return -EINVAL;
9912 }
9913
9914 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9915
9916 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9917 admitted_time =
9918 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9919 if (!admitted_time)
9920 return -EINVAL;
9921 }
9922
9923 wdev_lock(wdev);
9924 switch (wdev->iftype) {
9925 case NL80211_IFTYPE_STATION:
9926 case NL80211_IFTYPE_P2P_CLIENT:
9927 if (wdev->current_bss)
9928 break;
9929 err = -ENOTCONN;
9930 goto out;
9931 default:
9932 err = -EOPNOTSUPP;
9933 goto out;
9934 }
9935
9936 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9937
9938 out:
9939 wdev_unlock(wdev);
9940 return err;
9941}
9942
9943static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9944{
9945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9946 struct net_device *dev = info->user_ptr[1];
9947 struct wireless_dev *wdev = dev->ieee80211_ptr;
9948 const u8 *peer;
9949 u8 tsid;
9950 int err;
9951
9952 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9953 return -EINVAL;
9954
9955 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9956 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9957
9958 wdev_lock(wdev);
9959 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9960 wdev_unlock(wdev);
9961
9962 return err;
9963}
9964
1057d35e
AN		 9965static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9966 struct genl_info *info)
9967{
9968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9969 struct net_device *dev = info->user_ptr[1];
9970 struct wireless_dev *wdev = dev->ieee80211_ptr;
9971 struct cfg80211_chan_def chandef = {};
9972 const u8 *addr;
9973 u8 oper_class;
9974 int err;
9975
9976 if (!rdev->ops->tdls_channel_switch ||
9977 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9978 return -EOPNOTSUPP;
9979
9980 switch (dev->ieee80211_ptr->iftype) {
9981 case NL80211_IFTYPE_STATION:
9982 case NL80211_IFTYPE_P2P_CLIENT:
9983 break;
9984 default:
9985 return -EOPNOTSUPP;
9986 }
9987
9988 if (!info->attrs[NL80211_ATTR_MAC] ||
9989 !info->attrs[NL80211_ATTR_OPER_CLASS])
9990 return -EINVAL;
9991
9992 err = nl80211_parse_chandef(rdev, info, &chandef);
9993 if (err)
9994 return err;
9995
9996 /*
9997 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9998 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9999 * specification is not defined for them.
10000 */
10001 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10002 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10003 chandef.width != NL80211_CHAN_WIDTH_20)
10004 return -EINVAL;
10005
10006 /* we will be active on the TDLS link */
10007 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
10008 return -EINVAL;
10009
10010 /* don't allow switching to DFS channels */
10011 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10012 return -EINVAL;
10013
10014 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10015 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10016
10017 wdev_lock(wdev);
10018 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10019 wdev_unlock(wdev);
10020
10021 return err;
10022}
10023
10024static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10025 struct genl_info *info)
10026{
10027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10028 struct net_device *dev = info->user_ptr[1];
10029 struct wireless_dev *wdev = dev->ieee80211_ptr;
10030 const u8 *addr;
10031
10032 if (!rdev->ops->tdls_channel_switch ||
10033 !rdev->ops->tdls_cancel_channel_switch ||
10034 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10035 return -EOPNOTSUPP;
10036
10037 switch (dev->ieee80211_ptr->iftype) {
10038 case NL80211_IFTYPE_STATION:
10039 case NL80211_IFTYPE_P2P_CLIENT:
10040 break;
10041 default:
10042 return -EOPNOTSUPP;
10043 }
10044
10045 if (!info->attrs[NL80211_ATTR_MAC])
10046 return -EINVAL;
10047
10048 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10049
10050 wdev_lock(wdev);
10051 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10052 wdev_unlock(wdev);
10053
10054 return 0;
10055}
10056
4c476991
JB		 10057#define NL80211_FLAG_NEED_WIPHY 0x01
10058#define NL80211_FLAG_NEED_NETDEV 0x02
10059#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10060#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10061#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10062 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10063#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10064/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10065#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10066 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10067#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10068
f84f771d 10069static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10070 struct genl_info *info)
10071{
10072 struct cfg80211_registered_device *rdev;
89a54e48 10073 struct wireless_dev *wdev;
4c476991 10074 struct net_device *dev;
4c476991
JB		 10075 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10076
10077 if (rtnl)
10078 rtnl_lock();
10079
10080 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10081 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10082 if (IS_ERR(rdev)) {
10083 if (rtnl)
10084 rtnl_unlock();
10085 return PTR_ERR(rdev);
10086 }
10087 info->user_ptr[0] = rdev;
1bf614ef
JB		 10088 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10089 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10090 ASSERT_RTNL();
10091
89a54e48
JB		 10092 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10093 info->attrs);
10094 if (IS_ERR(wdev)) {
4c476991
JB		 10095 if (rtnl)
10096 rtnl_unlock();
89a54e48 10097 return PTR_ERR(wdev);
4c476991 10098 }
89a54e48 10099
89a54e48 10100 dev = wdev->netdev;
f26cbf40 10101 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10102
1bf614ef
JB		 10103 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10104 if (!dev) {
1bf614ef
JB		 10105 if (rtnl)
10106 rtnl_unlock();
10107 return -EINVAL;
10108 }
10109
10110 info->user_ptr[1] = dev;
10111 } else {
10112 info->user_ptr[1] = wdev;
41265714 10113 }
1bf614ef
JB		 10114
10115 if (dev) {
10116 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10117 !netif_running(dev)) {
1bf614ef
JB		 10118 if (rtnl)
10119 rtnl_unlock();
10120 return -ENETDOWN;
10121 }
10122
10123 dev_hold(dev);
98104fde
JB		 10124 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10125 if (!wdev->p2p_started) {
98104fde
JB		 10126 if (rtnl)
10127 rtnl_unlock();
10128 return -ENETDOWN;
10129 }
41265714 10130 }
89a54e48 10131
4c476991 10132 info->user_ptr[0] = rdev;
4c476991
JB		 10133 }
10134
10135 return 0;
10136}
10137
f84f771d 10138static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10139 struct genl_info *info)
10140{
1bf614ef
JB		 10141 if (info->user_ptr[1]) {
10142 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10143 struct wireless_dev *wdev = info->user_ptr[1];
10144
10145 if (wdev->netdev)
10146 dev_put(wdev->netdev);
10147 } else {
10148 dev_put(info->user_ptr[1]);
10149 }
10150 }
5393b917 10151
4c476991
JB		 10152 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10153 rtnl_unlock();
5393b917
JB		 10154
10155 /* If needed, clear the netlink message payload from the SKB
10156 * as it might contain key data that shouldn't stick around on
10157 * the heap after the SKB is freed. The netlink message header
10158 * is still needed for further processing, so leave it intact.
10159 */
10160 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10161 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10162
10163 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10164 }
4c476991
JB		 10165}
10166
4534de83 10167static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10168 {
10169 .cmd = NL80211_CMD_GET_WIPHY,
10170 .doit = nl80211_get_wiphy,
10171 .dumpit = nl80211_dump_wiphy,
86e8cf98 10172 .done = nl80211_dump_wiphy_done,
55682965
JB		 10173 .policy = nl80211_policy,
10174 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10175 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10176 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10177 },
10178 {
10179 .cmd = NL80211_CMD_SET_WIPHY,
10180 .doit = nl80211_set_wiphy,
10181 .policy = nl80211_policy,
10182 .flags = GENL_ADMIN_PERM,
4c476991 10183 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10184 },
10185 {
10186 .cmd = NL80211_CMD_GET_INTERFACE,
10187 .doit = nl80211_get_interface,
10188 .dumpit = nl80211_dump_interface,
10189 .policy = nl80211_policy,
10190 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10191 .internal_flags = NL80211_FLAG_NEED_WDEV |
10192 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10193 },
10194 {
10195 .cmd = NL80211_CMD_SET_INTERFACE,
10196 .doit = nl80211_set_interface,
10197 .policy = nl80211_policy,
10198 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10199 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10200 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10201 },
10202 {
10203 .cmd = NL80211_CMD_NEW_INTERFACE,
10204 .doit = nl80211_new_interface,
10205 .policy = nl80211_policy,
10206 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10207 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10208 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10209 },
10210 {
10211 .cmd = NL80211_CMD_DEL_INTERFACE,
10212 .doit = nl80211_del_interface,
10213 .policy = nl80211_policy,
41ade00f 10214 .flags = GENL_ADMIN_PERM,
84efbb84 10215 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10216 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10217 },
10218 {
10219 .cmd = NL80211_CMD_GET_KEY,
10220 .doit = nl80211_get_key,
10221 .policy = nl80211_policy,
10222 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10224 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10225 },
10226 {
10227 .cmd = NL80211_CMD_SET_KEY,
10228 .doit = nl80211_set_key,
10229 .policy = nl80211_policy,
10230 .flags = GENL_ADMIN_PERM,
41265714 10231 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10232 NL80211_FLAG_NEED_RTNL |
10233 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10234 },
10235 {
10236 .cmd = NL80211_CMD_NEW_KEY,
10237 .doit = nl80211_new_key,
10238 .policy = nl80211_policy,
10239 .flags = GENL_ADMIN_PERM,
41265714 10240 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10241 NL80211_FLAG_NEED_RTNL |
10242 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10243 },
10244 {
10245 .cmd = NL80211_CMD_DEL_KEY,
10246 .doit = nl80211_del_key,
10247 .policy = nl80211_policy,
55682965 10248 .flags = GENL_ADMIN_PERM,
41265714 10249 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10250 NL80211_FLAG_NEED_RTNL,
55682965 10251 },
ed1b6cc7
JB		 10252 {
10253 .cmd = NL80211_CMD_SET_BEACON,
10254 .policy = nl80211_policy,
10255 .flags = GENL_ADMIN_PERM,
8860020e 10256 .doit = nl80211_set_beacon,
2b5f8b0b 10257 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10258 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10259 },
10260 {
8860020e 10261 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10262 .policy = nl80211_policy,
10263 .flags = GENL_ADMIN_PERM,
8860020e 10264 .doit = nl80211_start_ap,
2b5f8b0b 10265 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10266 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10267 },
10268 {
8860020e 10269 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10270 .policy = nl80211_policy,
10271 .flags = GENL_ADMIN_PERM,
8860020e 10272 .doit = nl80211_stop_ap,
2b5f8b0b 10273 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10274 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10275 },
5727ef1b
JB		 10276 {
10277 .cmd = NL80211_CMD_GET_STATION,
10278 .doit = nl80211_get_station,
2ec600d6 10279 .dumpit = nl80211_dump_station,
5727ef1b 10280 .policy = nl80211_policy,
4c476991
JB		 10281 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10282 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10283 },
10284 {
10285 .cmd = NL80211_CMD_SET_STATION,
10286 .doit = nl80211_set_station,
10287 .policy = nl80211_policy,
10288 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10289 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10290 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10291 },
10292 {
10293 .cmd = NL80211_CMD_NEW_STATION,
10294 .doit = nl80211_new_station,
10295 .policy = nl80211_policy,
10296 .flags = GENL_ADMIN_PERM,
41265714 10297 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10298 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10299 },
10300 {
10301 .cmd = NL80211_CMD_DEL_STATION,
10302 .doit = nl80211_del_station,
10303 .policy = nl80211_policy,
2ec600d6 10304 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10305 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10306 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10307 },
10308 {
10309 .cmd = NL80211_CMD_GET_MPATH,
10310 .doit = nl80211_get_mpath,
10311 .dumpit = nl80211_dump_mpath,
10312 .policy = nl80211_policy,
10313 .flags = GENL_ADMIN_PERM,
41265714 10314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10315 NL80211_FLAG_NEED_RTNL,
2ec600d6 10316 },
66be7d2b
HR		 10317 {
10318 .cmd = NL80211_CMD_GET_MPP,
10319 .doit = nl80211_get_mpp,
10320 .dumpit = nl80211_dump_mpp,
10321 .policy = nl80211_policy,
10322 .flags = GENL_ADMIN_PERM,
10323 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10324 NL80211_FLAG_NEED_RTNL,
10325 },
2ec600d6
LCC		 10326 {
10327 .cmd = NL80211_CMD_SET_MPATH,
10328 .doit = nl80211_set_mpath,
10329 .policy = nl80211_policy,
10330 .flags = GENL_ADMIN_PERM,
41265714 10331 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10332 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10333 },
10334 {
10335 .cmd = NL80211_CMD_NEW_MPATH,
10336 .doit = nl80211_new_mpath,
10337 .policy = nl80211_policy,
10338 .flags = GENL_ADMIN_PERM,
41265714 10339 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10340 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10341 },
10342 {
10343 .cmd = NL80211_CMD_DEL_MPATH,
10344 .doit = nl80211_del_mpath,
10345 .policy = nl80211_policy,
9f1ba906 10346 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10347 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10348 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10349 },
10350 {
10351 .cmd = NL80211_CMD_SET_BSS,
10352 .doit = nl80211_set_bss,
10353 .policy = nl80211_policy,
b2e1b302 10354 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10355 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10356 NL80211_FLAG_NEED_RTNL,
b2e1b302 10357 },
f130347c
LR		 10358 {
10359 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10360 .doit = nl80211_get_reg_do,
10361 .dumpit = nl80211_get_reg_dump,
f130347c 10362 .policy = nl80211_policy,
5fe231e8 10363 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10364 /* can be retrieved by unprivileged users */
10365 },
b2e1b302
LR		 10366 {
10367 .cmd = NL80211_CMD_SET_REG,
10368 .doit = nl80211_set_reg,
10369 .policy = nl80211_policy,
10370 .flags = GENL_ADMIN_PERM,
5fe231e8 10371 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10372 },
10373 {
10374 .cmd = NL80211_CMD_REQ_SET_REG,
10375 .doit = nl80211_req_set_reg,
10376 .policy = nl80211_policy,
93da9cc1 10377 .flags = GENL_ADMIN_PERM,
10378 },
10379 {
24bdd9f4
JC		 10380 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10381 .doit = nl80211_get_mesh_config,
93da9cc1 10382 .policy = nl80211_policy,
10383 /* can be retrieved by unprivileged users */
2b5f8b0b 10384 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10385 NL80211_FLAG_NEED_RTNL,
93da9cc1 10386 },
10387 {
24bdd9f4
JC		 10388 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10389 .doit = nl80211_update_mesh_config,
93da9cc1 10390 .policy = nl80211_policy,
9aed3cc1 10391 .flags = GENL_ADMIN_PERM,
29cbe68c 10392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10393 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10394 },
2a519311
JB		 10395 {
10396 .cmd = NL80211_CMD_TRIGGER_SCAN,
10397 .doit = nl80211_trigger_scan,
10398 .policy = nl80211_policy,
10399 .flags = GENL_ADMIN_PERM,
fd014284 10400 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10401 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10402 },
10403 {
10404 .cmd = NL80211_CMD_GET_SCAN,
10405 .policy = nl80211_policy,
10406 .dumpit = nl80211_dump_scan,
10407 },
807f8a8c
LC		 10408 {
10409 .cmd = NL80211_CMD_START_SCHED_SCAN,
10410 .doit = nl80211_start_sched_scan,
10411 .policy = nl80211_policy,
10412 .flags = GENL_ADMIN_PERM,
10413 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10414 NL80211_FLAG_NEED_RTNL,
10415 },
10416 {
10417 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10418 .doit = nl80211_stop_sched_scan,
10419 .policy = nl80211_policy,
10420 .flags = GENL_ADMIN_PERM,
10421 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10422 NL80211_FLAG_NEED_RTNL,
10423 },
636a5d36
JM		 10424 {
10425 .cmd = NL80211_CMD_AUTHENTICATE,
10426 .doit = nl80211_authenticate,
10427 .policy = nl80211_policy,
10428 .flags = GENL_ADMIN_PERM,
41265714 10429 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10430 NL80211_FLAG_NEED_RTNL |
10431 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10432 },
10433 {
10434 .cmd = NL80211_CMD_ASSOCIATE,
10435 .doit = nl80211_associate,
10436 .policy = nl80211_policy,
10437 .flags = GENL_ADMIN_PERM,
41265714 10438 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10439 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10440 },
10441 {
10442 .cmd = NL80211_CMD_DEAUTHENTICATE,
10443 .doit = nl80211_deauthenticate,
10444 .policy = nl80211_policy,
10445 .flags = GENL_ADMIN_PERM,
41265714 10446 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10447 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10448 },
10449 {
10450 .cmd = NL80211_CMD_DISASSOCIATE,
10451 .doit = nl80211_disassociate,
10452 .policy = nl80211_policy,
10453 .flags = GENL_ADMIN_PERM,
41265714 10454 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10455 NL80211_FLAG_NEED_RTNL,
636a5d36 10456 },
04a773ad
JB		 10457 {
10458 .cmd = NL80211_CMD_JOIN_IBSS,
10459 .doit = nl80211_join_ibss,
10460 .policy = nl80211_policy,
10461 .flags = GENL_ADMIN_PERM,
41265714 10462 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10463 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10464 },
10465 {
10466 .cmd = NL80211_CMD_LEAVE_IBSS,
10467 .doit = nl80211_leave_ibss,
10468 .policy = nl80211_policy,
10469 .flags = GENL_ADMIN_PERM,
41265714 10470 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10471 NL80211_FLAG_NEED_RTNL,
04a773ad 10472 },
aff89a9b
JB		 10473#ifdef CONFIG_NL80211_TESTMODE
10474 {
10475 .cmd = NL80211_CMD_TESTMODE,
10476 .doit = nl80211_testmode_do,
71063f0e 10477 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10478 .policy = nl80211_policy,
10479 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10480 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10481 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10482 },
10483#endif
b23aa676
SO		 10484 {
10485 .cmd = NL80211_CMD_CONNECT,
10486 .doit = nl80211_connect,
10487 .policy = nl80211_policy,
10488 .flags = GENL_ADMIN_PERM,
41265714 10489 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10490 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10491 },
10492 {
10493 .cmd = NL80211_CMD_DISCONNECT,
10494 .doit = nl80211_disconnect,
10495 .policy = nl80211_policy,
10496 .flags = GENL_ADMIN_PERM,
41265714 10497 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10498 NL80211_FLAG_NEED_RTNL,
b23aa676 10499 },
463d0183
JB		 10500 {
10501 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10502 .doit = nl80211_wiphy_netns,
10503 .policy = nl80211_policy,
10504 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10505 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10506 NL80211_FLAG_NEED_RTNL,
463d0183 10507 },
61fa713c
HS		 10508 {
10509 .cmd = NL80211_CMD_GET_SURVEY,
10510 .policy = nl80211_policy,
10511 .dumpit = nl80211_dump_survey,
10512 },
67fbb16b
SO		 10513 {
10514 .cmd = NL80211_CMD_SET_PMKSA,
10515 .doit = nl80211_setdel_pmksa,
10516 .policy = nl80211_policy,
10517 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10518 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10519 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10520 },
10521 {
10522 .cmd = NL80211_CMD_DEL_PMKSA,
10523 .doit = nl80211_setdel_pmksa,
10524 .policy = nl80211_policy,
10525 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10526 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10527 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10528 },
10529 {
10530 .cmd = NL80211_CMD_FLUSH_PMKSA,
10531 .doit = nl80211_flush_pmksa,
10532 .policy = nl80211_policy,
10533 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10534 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10535 NL80211_FLAG_NEED_RTNL,
67fbb16b 10536 },
9588bbd5
JM		 10537 {
10538 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10539 .doit = nl80211_remain_on_channel,
10540 .policy = nl80211_policy,
10541 .flags = GENL_ADMIN_PERM,
71bbc994 10542 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10543 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10544 },
10545 {
10546 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10547 .doit = nl80211_cancel_remain_on_channel,
10548 .policy = nl80211_policy,
10549 .flags = GENL_ADMIN_PERM,
71bbc994 10550 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10551 NL80211_FLAG_NEED_RTNL,
9588bbd5 10552 },
13ae75b1
JM		 10553 {
10554 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10555 .doit = nl80211_set_tx_bitrate_mask,
10556 .policy = nl80211_policy,
10557 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10558 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10559 NL80211_FLAG_NEED_RTNL,
13ae75b1 10560 },
026331c4 10561 {
2e161f78
JB		 10562 .cmd = NL80211_CMD_REGISTER_FRAME,
10563 .doit = nl80211_register_mgmt,
026331c4
JM		 10564 .policy = nl80211_policy,
10565 .flags = GENL_ADMIN_PERM,
71bbc994 10566 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10567 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10568 },
10569 {
2e161f78
JB		 10570 .cmd = NL80211_CMD_FRAME,
10571 .doit = nl80211_tx_mgmt,
026331c4 10572 .policy = nl80211_policy,
f7ca38df 10573 .flags = GENL_ADMIN_PERM,
71bbc994 10574 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10575 NL80211_FLAG_NEED_RTNL,
10576 },
10577 {
10578 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10579 .doit = nl80211_tx_mgmt_cancel_wait,
10580 .policy = nl80211_policy,
026331c4 10581 .flags = GENL_ADMIN_PERM,
71bbc994 10582 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10583 NL80211_FLAG_NEED_RTNL,
026331c4 10584 },
ffb9eb3d
KV		 10585 {
10586 .cmd = NL80211_CMD_SET_POWER_SAVE,
10587 .doit = nl80211_set_power_save,
10588 .policy = nl80211_policy,
10589 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10590 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10591 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10592 },
10593 {
10594 .cmd = NL80211_CMD_GET_POWER_SAVE,
10595 .doit = nl80211_get_power_save,
10596 .policy = nl80211_policy,
10597 /* can be retrieved by unprivileged users */
4c476991
JB		 10598 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10599 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10600 },
d6dc1a38
JO		 10601 {
10602 .cmd = NL80211_CMD_SET_CQM,
10603 .doit = nl80211_set_cqm,
10604 .policy = nl80211_policy,
10605 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10606 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10607 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10608 },
f444de05
JB		 10609 {
10610 .cmd = NL80211_CMD_SET_CHANNEL,
10611 .doit = nl80211_set_channel,
10612 .policy = nl80211_policy,
10613 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10614 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10615 NL80211_FLAG_NEED_RTNL,
f444de05 10616 },
e8347eba
BJ		 10617 {
10618 .cmd = NL80211_CMD_SET_WDS_PEER,
10619 .doit = nl80211_set_wds_peer,
10620 .policy = nl80211_policy,
10621 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10622 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10623 NL80211_FLAG_NEED_RTNL,
e8347eba 10624 },
29cbe68c
JB		 10625 {
10626 .cmd = NL80211_CMD_JOIN_MESH,
10627 .doit = nl80211_join_mesh,
10628 .policy = nl80211_policy,
10629 .flags = GENL_ADMIN_PERM,
10630 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10631 NL80211_FLAG_NEED_RTNL,
10632 },
10633 {
10634 .cmd = NL80211_CMD_LEAVE_MESH,
10635 .doit = nl80211_leave_mesh,
10636 .policy = nl80211_policy,
10637 .flags = GENL_ADMIN_PERM,
10638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10639 NL80211_FLAG_NEED_RTNL,
10640 },
6e0bd6c3
RL		 10641 {
10642 .cmd = NL80211_CMD_JOIN_OCB,
10643 .doit = nl80211_join_ocb,
10644 .policy = nl80211_policy,
10645 .flags = GENL_ADMIN_PERM,
10646 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10647 NL80211_FLAG_NEED_RTNL,
10648 },
10649 {
10650 .cmd = NL80211_CMD_LEAVE_OCB,
10651 .doit = nl80211_leave_ocb,
10652 .policy = nl80211_policy,
10653 .flags = GENL_ADMIN_PERM,
10654 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10655 NL80211_FLAG_NEED_RTNL,
10656 },
dfb89c56 10657#ifdef CONFIG_PM
ff1b6e69
JB		 10658 {
10659 .cmd = NL80211_CMD_GET_WOWLAN,
10660 .doit = nl80211_get_wowlan,
10661 .policy = nl80211_policy,
10662 /* can be retrieved by unprivileged users */
10663 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10664 NL80211_FLAG_NEED_RTNL,
10665 },
10666 {
10667 .cmd = NL80211_CMD_SET_WOWLAN,
10668 .doit = nl80211_set_wowlan,
10669 .policy = nl80211_policy,
10670 .flags = GENL_ADMIN_PERM,
10671 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10672 NL80211_FLAG_NEED_RTNL,
10673 },
dfb89c56 10674#endif
e5497d76
JB		 10675 {
10676 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10677 .doit = nl80211_set_rekey_data,
10678 .policy = nl80211_policy,
10679 .flags = GENL_ADMIN_PERM,
10680 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10681 NL80211_FLAG_NEED_RTNL |
10682 NL80211_FLAG_CLEAR_SKB,
e5497d76 10683 },
109086ce
AN		 10684 {
10685 .cmd = NL80211_CMD_TDLS_MGMT,
10686 .doit = nl80211_tdls_mgmt,
10687 .policy = nl80211_policy,
10688 .flags = GENL_ADMIN_PERM,
10689 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10690 NL80211_FLAG_NEED_RTNL,
10691 },
10692 {
10693 .cmd = NL80211_CMD_TDLS_OPER,
10694 .doit = nl80211_tdls_oper,
10695 .policy = nl80211_policy,
10696 .flags = GENL_ADMIN_PERM,
10697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10698 NL80211_FLAG_NEED_RTNL,
10699 },
28946da7
JB		 10700 {
10701 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10702 .doit = nl80211_register_unexpected_frame,
10703 .policy = nl80211_policy,
10704 .flags = GENL_ADMIN_PERM,
10705 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10706 NL80211_FLAG_NEED_RTNL,
10707 },
7f6cf311
JB		 10708 {
10709 .cmd = NL80211_CMD_PROBE_CLIENT,
10710 .doit = nl80211_probe_client,
10711 .policy = nl80211_policy,
10712 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10714 NL80211_FLAG_NEED_RTNL,
10715 },
5e760230
JB		 10716 {
10717 .cmd = NL80211_CMD_REGISTER_BEACONS,
10718 .doit = nl80211_register_beacons,
10719 .policy = nl80211_policy,
10720 .flags = GENL_ADMIN_PERM,
10721 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10722 NL80211_FLAG_NEED_RTNL,
10723 },
1d9d9213
SW		 10724 {
10725 .cmd = NL80211_CMD_SET_NOACK_MAP,
10726 .doit = nl80211_set_noack_map,
10727 .policy = nl80211_policy,
10728 .flags = GENL_ADMIN_PERM,
10729 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10730 NL80211_FLAG_NEED_RTNL,
10731 },
98104fde
JB		 10732 {
10733 .cmd = NL80211_CMD_START_P2P_DEVICE,
10734 .doit = nl80211_start_p2p_device,
10735 .policy = nl80211_policy,
10736 .flags = GENL_ADMIN_PERM,
10737 .internal_flags = NL80211_FLAG_NEED_WDEV |
10738 NL80211_FLAG_NEED_RTNL,
10739 },
10740 {
10741 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10742 .doit = nl80211_stop_p2p_device,
10743 .policy = nl80211_policy,
10744 .flags = GENL_ADMIN_PERM,
10745 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10746 NL80211_FLAG_NEED_RTNL,
10747 },
f4e583c8
AQ		 10748 {
10749 .cmd = NL80211_CMD_SET_MCAST_RATE,
10750 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10751 .policy = nl80211_policy,
10752 .flags = GENL_ADMIN_PERM,
10753 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10754 NL80211_FLAG_NEED_RTNL,
10755 },
10756 {
10757 .cmd = NL80211_CMD_SET_MAC_ACL,
10758 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10759 .policy = nl80211_policy,
10760 .flags = GENL_ADMIN_PERM,
10761 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10762 NL80211_FLAG_NEED_RTNL,
10763 },
04f39047
SW		 10764 {
10765 .cmd = NL80211_CMD_RADAR_DETECT,
10766 .doit = nl80211_start_radar_detection,
10767 .policy = nl80211_policy,
10768 .flags = GENL_ADMIN_PERM,
10769 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10770 NL80211_FLAG_NEED_RTNL,
10771 },
3713b4e3
JB		 10772 {
10773 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10774 .doit = nl80211_get_protocol_features,
10775 .policy = nl80211_policy,
10776 },
355199e0
JM		 10777 {
10778 .cmd = NL80211_CMD_UPDATE_FT_IES,
10779 .doit = nl80211_update_ft_ies,
10780 .policy = nl80211_policy,
10781 .flags = GENL_ADMIN_PERM,
10782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10783 NL80211_FLAG_NEED_RTNL,
10784 },
5de17984
AS		 10785 {
10786 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10787 .doit = nl80211_crit_protocol_start,
10788 .policy = nl80211_policy,
10789 .flags = GENL_ADMIN_PERM,
10790 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10791 NL80211_FLAG_NEED_RTNL,
10792 },
10793 {
10794 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10795 .doit = nl80211_crit_protocol_stop,
10796 .policy = nl80211_policy,
10797 .flags = GENL_ADMIN_PERM,
10798 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10799 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10800 },
10801 {
10802 .cmd = NL80211_CMD_GET_COALESCE,
10803 .doit = nl80211_get_coalesce,
10804 .policy = nl80211_policy,
10805 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10806 NL80211_FLAG_NEED_RTNL,
10807 },
10808 {
10809 .cmd = NL80211_CMD_SET_COALESCE,
10810 .doit = nl80211_set_coalesce,
10811 .policy = nl80211_policy,
10812 .flags = GENL_ADMIN_PERM,
10813 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10814 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10815 },
10816 {
10817 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10818 .doit = nl80211_channel_switch,
10819 .policy = nl80211_policy,
10820 .flags = GENL_ADMIN_PERM,
10821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10822 NL80211_FLAG_NEED_RTNL,
10823 },
ad7e718c
JB		 10824 {
10825 .cmd = NL80211_CMD_VENDOR,
10826 .doit = nl80211_vendor_cmd,
10827 .policy = nl80211_policy,
10828 .flags = GENL_ADMIN_PERM,
10829 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10830 NL80211_FLAG_NEED_RTNL,
10831 },
fa9ffc74
KP		 10832 {
10833 .cmd = NL80211_CMD_SET_QOS_MAP,
10834 .doit = nl80211_set_qos_map,
10835 .policy = nl80211_policy,
10836 .flags = GENL_ADMIN_PERM,
10837 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10838 NL80211_FLAG_NEED_RTNL,
10839 },
960d01ac
JB		 10840 {
10841 .cmd = NL80211_CMD_ADD_TX_TS,
10842 .doit = nl80211_add_tx_ts,
10843 .policy = nl80211_policy,
10844 .flags = GENL_ADMIN_PERM,
10845 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10846 NL80211_FLAG_NEED_RTNL,
10847 },
10848 {
10849 .cmd = NL80211_CMD_DEL_TX_TS,
10850 .doit = nl80211_del_tx_ts,
10851 .policy = nl80211_policy,
10852 .flags = GENL_ADMIN_PERM,
10853 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10854 NL80211_FLAG_NEED_RTNL,
10855 },
1057d35e
AN		 10856 {
10857 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10858 .doit = nl80211_tdls_channel_switch,
10859 .policy = nl80211_policy,
10860 .flags = GENL_ADMIN_PERM,
10861 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10862 NL80211_FLAG_NEED_RTNL,
10863 },
10864 {
10865 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10866 .doit = nl80211_tdls_cancel_channel_switch,
10867 .policy = nl80211_policy,
10868 .flags = GENL_ADMIN_PERM,
10869 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10870 NL80211_FLAG_NEED_RTNL,
10871 },
55682965 10872};
9588bbd5 10873
55682965
JB		 10874/* notification functions */
10875
3bb20556
JB		 10876void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10877 enum nl80211_commands cmd)
55682965
JB		 10878{
10879 struct sk_buff *msg;
86e8cf98 10880 struct nl80211_dump_wiphy_state state = {};
55682965 10881
3bb20556
JB		 10882 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10883 cmd != NL80211_CMD_DEL_WIPHY);
10884
fd2120ca 10885 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10886 if (!msg)
10887 return;
10888
3bb20556 10889 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10890 nlmsg_free(msg);
10891 return;
10892 }
10893
68eb5503 10894 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10895 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10896}
10897
362a415d
JB		 10898static int nl80211_add_scan_req(struct sk_buff *msg,
10899 struct cfg80211_registered_device *rdev)
10900{
10901 struct cfg80211_scan_request *req = rdev->scan_req;
10902 struct nlattr *nest;
10903 int i;
10904
10905 if (WARN_ON(!req))
10906 return 0;
10907
10908 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10909 if (!nest)
10910 goto nla_put_failure;
9360ffd1
DM		 10911 for (i = 0; i < req->n_ssids; i++) {
10912 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10913 goto nla_put_failure;
10914 }
362a415d
JB		 10915 nla_nest_end(msg, nest);
10916
10917 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10918 if (!nest)
10919 goto nla_put_failure;
9360ffd1
DM		 10920 for (i = 0; i < req->n_channels; i++) {
10921 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10922 goto nla_put_failure;
10923 }
362a415d
JB		 10924 nla_nest_end(msg, nest);
10925
9360ffd1
DM		 10926 if (req->ie &&
10927 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10928 goto nla_put_failure;
362a415d 10929
ae917c9f
JB		 10930 if (req->flags &&
10931 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10932 goto nla_put_failure;
ed473771 10933
362a415d
JB		 10934 return 0;
10935 nla_put_failure:
10936 return -ENOBUFS;
10937}
10938
a538e2d5
JB		 10939static int nl80211_send_scan_msg(struct sk_buff *msg,
10940 struct cfg80211_registered_device *rdev,
fd014284 10941 struct wireless_dev *wdev,
15e47304 10942 u32 portid, u32 seq, int flags,
a538e2d5 10943 u32 cmd)
2a519311
JB		 10944{
10945 void *hdr;
10946
15e47304 10947 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10948 if (!hdr)
10949 return -1;
10950
9360ffd1 10951 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10952 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10953 wdev->netdev->ifindex)) ||
10954 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10955 goto nla_put_failure;
2a519311 10956
362a415d
JB		 10957 /* ignore errors and send incomplete event anyway */
10958 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10959
10960 return genlmsg_end(msg, hdr);
10961
10962 nla_put_failure:
10963 genlmsg_cancel(msg, hdr);
10964 return -EMSGSIZE;
10965}
10966
807f8a8c
LC		 10967static int
10968nl80211_send_sched_scan_msg(struct sk_buff *msg,
10969 struct cfg80211_registered_device *rdev,
10970 struct net_device *netdev,
15e47304 10971 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10972{
10973 void *hdr;
10974
15e47304 10975 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10976 if (!hdr)
10977 return -1;
10978
9360ffd1
DM		 10979 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10980 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10981 goto nla_put_failure;
807f8a8c
LC		 10982
10983 return genlmsg_end(msg, hdr);
10984
10985 nla_put_failure:
10986 genlmsg_cancel(msg, hdr);
10987 return -EMSGSIZE;
10988}
10989
a538e2d5 10990void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10991 struct wireless_dev *wdev)
a538e2d5
JB		 10992{
10993 struct sk_buff *msg;
10994
58050fce 10995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10996 if (!msg)
10997 return;
10998
fd014284 10999 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11000 NL80211_CMD_TRIGGER_SCAN) < 0) {
11001 nlmsg_free(msg);
11002 return;
11003 }
11004
68eb5503 11005 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11006 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11007}
11008
f9d15d16
JB		 11009struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11010 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11011{
11012 struct sk_buff *msg;
11013
fd2120ca 11014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11015 if (!msg)
f9d15d16 11016 return NULL;
2a519311 11017
fd014284 11018 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11019 aborted ? NL80211_CMD_SCAN_ABORTED :
11020 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11021 nlmsg_free(msg);
f9d15d16 11022 return NULL;
2a519311
JB		 11023 }
11024
f9d15d16 11025 return msg;
2a519311
JB		 11026}
11027
f9d15d16
JB		 11028void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11029 struct sk_buff *msg)
2a519311 11030{
2a519311
JB		 11031 if (!msg)
11032 return;
11033
68eb5503 11034 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11035 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11036}
11037
807f8a8c
LC		 11038void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11039 struct net_device *netdev)
11040{
11041 struct sk_buff *msg;
11042
11043 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11044 if (!msg)
11045 return;
11046
11047 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11048 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11049 nlmsg_free(msg);
11050 return;
11051 }
11052
68eb5503 11053 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11054 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11055}
11056
11057void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11058 struct net_device *netdev, u32 cmd)
11059{
11060 struct sk_buff *msg;
11061
58050fce 11062 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11063 if (!msg)
11064 return;
11065
11066 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11067 nlmsg_free(msg);
11068 return;
11069 }
11070
68eb5503 11071 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11072 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11073}
11074
b0d7aa59
JD		 11075static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11076 struct regulatory_request *request)
73d54c9e 11077{
73d54c9e 11078 /* Userspace can always count this one always being set */
9360ffd1
DM		 11079 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11080 goto nla_put_failure;
11081
11082 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11083 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11084 NL80211_REGDOM_TYPE_WORLD))
11085 goto nla_put_failure;
11086 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11087 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11088 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11089 goto nla_put_failure;
11090 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11091 request->intersect) {
11092 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11093 NL80211_REGDOM_TYPE_INTERSECTION))
11094 goto nla_put_failure;
11095 } else {
11096 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11097 NL80211_REGDOM_TYPE_COUNTRY) ||
11098 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11099 request->alpha2))
11100 goto nla_put_failure;
11101 }
11102
ad30ca2c
AN		 11103 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11104 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11105
11106 if (wiphy &&
11107 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11108 goto nla_put_failure;
1bdd716c
AN		 11109
11110 if (wiphy &&
11111 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11112 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11113 goto nla_put_failure;
ad30ca2c 11114 }
73d54c9e 11115
b0d7aa59
JD		 11116 return true;
11117
11118nla_put_failure:
11119 return false;
11120}
11121
11122/*
11123 * This can happen on global regulatory changes or device specific settings
11124 * based on custom regulatory domains.
11125 */
11126void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11127 struct regulatory_request *request)
11128{
11129 struct sk_buff *msg;
11130 void *hdr;
11131
11132 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11133 if (!msg)
11134 return;
11135
11136 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11137 if (!hdr) {
11138 nlmsg_free(msg);
11139 return;
11140 }
11141
11142 if (nl80211_reg_change_event_fill(msg, request) == false)
11143 goto nla_put_failure;
11144
3b7b72ee 11145 genlmsg_end(msg, hdr);
73d54c9e 11146
bc43b28c 11147 rcu_read_lock();
68eb5503 11148 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11149 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11150 rcu_read_unlock();
73d54c9e
LR		 11151
11152 return;
11153
11154nla_put_failure:
11155 genlmsg_cancel(msg, hdr);
11156 nlmsg_free(msg);
11157}
11158
6039f6d2
JM		 11159static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11160 struct net_device *netdev,
11161 const u8 *buf, size_t len,
b0b6aa2c
EP		 11162 enum nl80211_commands cmd, gfp_t gfp,
11163 int uapsd_queues)
6039f6d2
JM		 11164{
11165 struct sk_buff *msg;
11166 void *hdr;
11167
e6d6e342 11168 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11169 if (!msg)
11170 return;
11171
11172 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11173 if (!hdr) {
11174 nlmsg_free(msg);
11175 return;
11176 }
11177
9360ffd1
DM		 11178 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11179 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11180 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11181 goto nla_put_failure;
6039f6d2 11182
b0b6aa2c
EP		 11183 if (uapsd_queues >= 0) {
11184 struct nlattr *nla_wmm =
11185 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11186 if (!nla_wmm)
11187 goto nla_put_failure;
11188
11189 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11190 uapsd_queues))
11191 goto nla_put_failure;
11192
11193 nla_nest_end(msg, nla_wmm);
11194 }
11195
3b7b72ee 11196 genlmsg_end(msg, hdr);
6039f6d2 11197
68eb5503 11198 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11199 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11200 return;
11201
11202 nla_put_failure:
11203 genlmsg_cancel(msg, hdr);
11204 nlmsg_free(msg);
11205}
11206
11207void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11208 struct net_device *netdev, const u8 *buf,
11209 size_t len, gfp_t gfp)
6039f6d2
JM		 11210{
11211 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11212 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11213}
11214
11215void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11216 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11217 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11218{
e6d6e342 11219 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11220 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11221}
11222
53b46b84 11223void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11224 struct net_device *netdev, const u8 *buf,
11225 size_t len, gfp_t gfp)
6039f6d2
JM		 11226{
11227 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11228 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11229}
11230
53b46b84
JM		 11231void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11232 struct net_device *netdev, const u8 *buf,
e6d6e342 11233 size_t len, gfp_t gfp)
6039f6d2
JM		 11234{
11235 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11236 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11237}
11238
6ff57cf8
JB		 11239void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11240 size_t len)
cf4e594e 11241{
947add36
JB		 11242 struct wireless_dev *wdev = dev->ieee80211_ptr;
11243 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11244 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11245 const struct ieee80211_mgmt *mgmt = (void *)buf;
11246 u32 cmd;
947add36 11247
6ff57cf8
JB		 11248 if (WARN_ON(len < 2))
11249 return;
cf4e594e 11250
6ff57cf8
JB		 11251 if (ieee80211_is_deauth(mgmt->frame_control))
11252 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11253 else
11254 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11255
6ff57cf8 11256 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11257 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11258}
6ff57cf8 11259EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11260
1b06bb40
LR		 11261static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11262 struct net_device *netdev, int cmd,
e6d6e342 11263 const u8 *addr, gfp_t gfp)
1965c853
JM		 11264{
11265 struct sk_buff *msg;
11266 void *hdr;
11267
e6d6e342 11268 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11269 if (!msg)
11270 return;
11271
11272 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11273 if (!hdr) {
11274 nlmsg_free(msg);
11275 return;
11276 }
11277
9360ffd1
DM		 11278 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11279 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11280 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11281 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11282 goto nla_put_failure;
1965c853 11283
3b7b72ee 11284 genlmsg_end(msg, hdr);
1965c853 11285
68eb5503 11286 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11287 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11288 return;
11289
11290 nla_put_failure:
11291 genlmsg_cancel(msg, hdr);
11292 nlmsg_free(msg);
11293}
11294
11295void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11296 struct net_device *netdev, const u8 *addr,
11297 gfp_t gfp)
1965c853
JM		 11298{
11299 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11300 addr, gfp);
1965c853
JM		 11301}
11302
11303void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11304 struct net_device *netdev, const u8 *addr,
11305 gfp_t gfp)
1965c853 11306{
e6d6e342
JB		 11307 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11308 addr, gfp);
1965c853
JM		 11309}
11310
b23aa676
SO		 11311void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11312 struct net_device *netdev, const u8 *bssid,
11313 const u8 *req_ie, size_t req_ie_len,
11314 const u8 *resp_ie, size_t resp_ie_len,
11315 u16 status, gfp_t gfp)
11316{
11317 struct sk_buff *msg;
11318 void *hdr;
11319
58050fce 11320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11321 if (!msg)
11322 return;
11323
11324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11325 if (!hdr) {
11326 nlmsg_free(msg);
11327 return;
11328 }
11329
9360ffd1
DM		 11330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11331 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11332 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11333 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11334 (req_ie &&
11335 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11336 (resp_ie &&
11337 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11338 goto nla_put_failure;
b23aa676 11339
3b7b72ee 11340 genlmsg_end(msg, hdr);
b23aa676 11341
68eb5503 11342 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11343 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11344 return;
11345
11346 nla_put_failure:
11347 genlmsg_cancel(msg, hdr);
11348 nlmsg_free(msg);
11349
11350}
11351
11352void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11353 struct net_device *netdev, const u8 *bssid,
11354 const u8 *req_ie, size_t req_ie_len,
11355 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11356{
11357 struct sk_buff *msg;
11358 void *hdr;
11359
58050fce 11360 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11361 if (!msg)
11362 return;
11363
11364 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11365 if (!hdr) {
11366 nlmsg_free(msg);
11367 return;
11368 }
11369
9360ffd1
DM		 11370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11371 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11372 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11373 (req_ie &&
11374 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11375 (resp_ie &&
11376 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11377 goto nla_put_failure;
b23aa676 11378
3b7b72ee 11379 genlmsg_end(msg, hdr);
b23aa676 11380
68eb5503 11381 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11382 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11383 return;
11384
11385 nla_put_failure:
11386 genlmsg_cancel(msg, hdr);
11387 nlmsg_free(msg);
11388
11389}
11390
11391void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11392 struct net_device *netdev, u16 reason,
667503dd 11393 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11394{
11395 struct sk_buff *msg;
11396 void *hdr;
11397
58050fce 11398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11399 if (!msg)
11400 return;
11401
11402 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11403 if (!hdr) {
11404 nlmsg_free(msg);
11405 return;
11406 }
11407
9360ffd1
DM		 11408 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11409 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11410 (from_ap && reason &&
11411 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11412 (from_ap &&
11413 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11414 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11415 goto nla_put_failure;
b23aa676 11416
3b7b72ee 11417 genlmsg_end(msg, hdr);
b23aa676 11418
68eb5503 11419 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11420 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11421 return;
11422
11423 nla_put_failure:
11424 genlmsg_cancel(msg, hdr);
11425 nlmsg_free(msg);
11426
11427}
11428
04a773ad
JB		 11429void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11430 struct net_device *netdev, const u8 *bssid,
11431 gfp_t gfp)
11432{
11433 struct sk_buff *msg;
11434 void *hdr;
11435
fd2120ca 11436 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11437 if (!msg)
11438 return;
11439
11440 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11441 if (!hdr) {
11442 nlmsg_free(msg);
11443 return;
11444 }
11445
9360ffd1
DM		 11446 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11447 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11448 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11449 goto nla_put_failure;
04a773ad 11450
3b7b72ee 11451 genlmsg_end(msg, hdr);
04a773ad 11452
68eb5503 11453 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11454 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11455 return;
11456
11457 nla_put_failure:
11458 genlmsg_cancel(msg, hdr);
11459 nlmsg_free(msg);
11460}
11461
947add36
JB		 11462void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11463 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11464{
947add36 11465 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11466 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11467 struct sk_buff *msg;
11468 void *hdr;
11469
947add36
JB		 11470 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11471 return;
11472
11473 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11474
c93b5e71
JC		 11475 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11476 if (!msg)
11477 return;
11478
11479 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11480 if (!hdr) {
11481 nlmsg_free(msg);
11482 return;
11483 }
11484
9360ffd1 11485 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11486 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11487 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11488 (ie_len && ie &&
11489 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11490 goto nla_put_failure;
c93b5e71 11491
3b7b72ee 11492 genlmsg_end(msg, hdr);
c93b5e71 11493
68eb5503 11494 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11495 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11496 return;
11497
11498 nla_put_failure:
11499 genlmsg_cancel(msg, hdr);
11500 nlmsg_free(msg);
11501}
947add36 11502EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11503
a3b8b056
JM		 11504void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11505 struct net_device *netdev, const u8 *addr,
11506 enum nl80211_key_type key_type, int key_id,
e6d6e342 11507 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11508{
11509 struct sk_buff *msg;
11510 void *hdr;
11511
e6d6e342 11512 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11513 if (!msg)
11514 return;
11515
11516 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11517 if (!hdr) {
11518 nlmsg_free(msg);
11519 return;
11520 }
11521
9360ffd1
DM		 11522 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11523 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11524 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11525 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11526 (key_id != -1 &&
11527 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11528 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11529 goto nla_put_failure;
a3b8b056 11530
3b7b72ee 11531 genlmsg_end(msg, hdr);
a3b8b056 11532
68eb5503 11533 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11534 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11535 return;
11536
11537 nla_put_failure:
11538 genlmsg_cancel(msg, hdr);
11539 nlmsg_free(msg);
11540}
11541
6bad8766
LR		 11542void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11543 struct ieee80211_channel *channel_before,
11544 struct ieee80211_channel *channel_after)
11545{
11546 struct sk_buff *msg;
11547 void *hdr;
11548 struct nlattr *nl_freq;
11549
fd2120ca 11550 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11551 if (!msg)
11552 return;
11553
11554 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11555 if (!hdr) {
11556 nlmsg_free(msg);
11557 return;
11558 }
11559
11560 /*
11561 * Since we are applying the beacon hint to a wiphy we know its
11562 * wiphy_idx is valid
11563 */
9360ffd1
DM		 11564 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11565 goto nla_put_failure;
6bad8766
LR		 11566
11567 /* Before */
11568 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11569 if (!nl_freq)
11570 goto nla_put_failure;
cdc89b97 11571 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11572 goto nla_put_failure;
11573 nla_nest_end(msg, nl_freq);
11574
11575 /* After */
11576 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11577 if (!nl_freq)
11578 goto nla_put_failure;
cdc89b97 11579 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11580 goto nla_put_failure;
11581 nla_nest_end(msg, nl_freq);
11582
3b7b72ee 11583 genlmsg_end(msg, hdr);
6bad8766 11584
463d0183 11585 rcu_read_lock();
68eb5503 11586 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11587 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11588 rcu_read_unlock();
6bad8766
LR		 11589
11590 return;
11591
11592nla_put_failure:
11593 genlmsg_cancel(msg, hdr);
11594 nlmsg_free(msg);
11595}
11596
9588bbd5
JM		 11597static void nl80211_send_remain_on_chan_event(
11598 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11599 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11600 struct ieee80211_channel *chan,
9588bbd5
JM		 11601 unsigned int duration, gfp_t gfp)
11602{
11603 struct sk_buff *msg;
11604 void *hdr;
11605
11606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11607 if (!msg)
11608 return;
11609
11610 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11611 if (!hdr) {
11612 nlmsg_free(msg);
11613 return;
11614 }
11615
9360ffd1 11616 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11617 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11618 wdev->netdev->ifindex)) ||
00f53350 11619 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11620 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11621 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11622 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11623 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11624 goto nla_put_failure;
9588bbd5 11625
9360ffd1
DM		 11626 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11627 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11628 goto nla_put_failure;
9588bbd5 11629
3b7b72ee 11630 genlmsg_end(msg, hdr);
9588bbd5 11631
68eb5503 11632 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11633 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11634 return;
11635
11636 nla_put_failure:
11637 genlmsg_cancel(msg, hdr);
11638 nlmsg_free(msg);
11639}
11640
947add36
JB		 11641void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11642 struct ieee80211_channel *chan,
11643 unsigned int duration, gfp_t gfp)
9588bbd5 11644{
947add36 11645 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11646 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11647
11648 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11649 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11650 rdev, wdev, cookie, chan,
42d97a59 11651 duration, gfp);
9588bbd5 11652}
947add36 11653EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11654
947add36
JB		 11655void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11656 struct ieee80211_channel *chan,
11657 gfp_t gfp)
9588bbd5 11658{
947add36 11659 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11660 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11661
11662 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11663 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11664 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11665}
947add36 11666EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11667
947add36
JB		 11668void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11669 struct station_info *sinfo, gfp_t gfp)
98b62183 11670{
947add36 11671 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11672 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11673 struct sk_buff *msg;
11674
947add36
JB		 11675 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11676
58050fce 11677 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11678 if (!msg)
11679 return;
11680
66266b3a
JL		 11681 if (nl80211_send_station(msg, 0, 0, 0,
11682 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11683 nlmsg_free(msg);
11684 return;
11685 }
11686
68eb5503 11687 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11688 NL80211_MCGRP_MLME, gfp);
98b62183 11689}
947add36 11690EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11691
947add36 11692void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11693{
947add36 11694 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11695 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11696 struct sk_buff *msg;
11697 void *hdr;
11698
947add36
JB		 11699 trace_cfg80211_del_sta(dev, mac_addr);
11700
58050fce 11701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11702 if (!msg)
11703 return;
11704
11705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11706 if (!hdr) {
11707 nlmsg_free(msg);
11708 return;
11709 }
11710
9360ffd1
DM		 11711 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11712 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11713 goto nla_put_failure;
ec15e68b 11714
3b7b72ee 11715 genlmsg_end(msg, hdr);
ec15e68b 11716
68eb5503 11717 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11718 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11719 return;
11720
11721 nla_put_failure:
11722 genlmsg_cancel(msg, hdr);
11723 nlmsg_free(msg);
11724}
947add36 11725EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11726
947add36
JB		 11727void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11728 enum nl80211_connect_failed_reason reason,
11729 gfp_t gfp)
ed44a951 11730{
947add36 11731 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11732 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11733 struct sk_buff *msg;
11734 void *hdr;
11735
11736 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11737 if (!msg)
11738 return;
11739
11740 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11741 if (!hdr) {
11742 nlmsg_free(msg);
11743 return;
11744 }
11745
11746 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11747 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11748 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11749 goto nla_put_failure;
11750
11751 genlmsg_end(msg, hdr);
11752
68eb5503 11753 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11754 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11755 return;
11756
11757 nla_put_failure:
11758 genlmsg_cancel(msg, hdr);
11759 nlmsg_free(msg);
11760}
947add36 11761EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11762
b92ab5d8
JB		 11763static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11764 const u8 *addr, gfp_t gfp)
28946da7
JB		 11765{
11766 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11767 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11768 struct sk_buff *msg;
11769 void *hdr;
15e47304 11770 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11771
15e47304 11772 if (!nlportid)
28946da7
JB		 11773 return false;
11774
11775 msg = nlmsg_new(100, gfp);
11776 if (!msg)
11777 return true;
11778
b92ab5d8 11779 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11780 if (!hdr) {
11781 nlmsg_free(msg);
11782 return true;
11783 }
11784
9360ffd1
DM		 11785 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11786 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11787 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11788 goto nla_put_failure;
28946da7 11789
9c90a9f6 11790 genlmsg_end(msg, hdr);
15e47304 11791 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11792 return true;
11793
11794 nla_put_failure:
11795 genlmsg_cancel(msg, hdr);
11796 nlmsg_free(msg);
11797 return true;
11798}
11799
947add36
JB		 11800bool cfg80211_rx_spurious_frame(struct net_device *dev,
11801 const u8 *addr, gfp_t gfp)
b92ab5d8 11802{
947add36
JB		 11803 struct wireless_dev *wdev = dev->ieee80211_ptr;
11804 bool ret;
11805
11806 trace_cfg80211_rx_spurious_frame(dev, addr);
11807
11808 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11809 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11810 trace_cfg80211_return_bool(false);
11811 return false;
11812 }
11813 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11814 addr, gfp);
11815 trace_cfg80211_return_bool(ret);
11816 return ret;
b92ab5d8 11817}
947add36 11818EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11819
947add36
JB		 11820bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11821 const u8 *addr, gfp_t gfp)
b92ab5d8 11822{
947add36
JB		 11823 struct wireless_dev *wdev = dev->ieee80211_ptr;
11824 bool ret;
11825
11826 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11827
11828 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11829 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11830 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11831 trace_cfg80211_return_bool(false);
11832 return false;
11833 }
11834 ret = __nl80211_unexpected_frame(dev,
11835 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11836 addr, gfp);
11837 trace_cfg80211_return_bool(ret);
11838 return ret;
b92ab5d8 11839}
947add36 11840EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11841
2e161f78 11842int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11843 struct wireless_dev *wdev, u32 nlportid,
804483e9 11844 int freq, int sig_dbm,
19504cf5 11845 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11846{
71bbc994 11847 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11848 struct sk_buff *msg;
11849 void *hdr;
026331c4
JM		 11850
11851 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11852 if (!msg)
11853 return -ENOMEM;
11854
2e161f78 11855 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11856 if (!hdr) {
11857 nlmsg_free(msg);
11858 return -ENOMEM;
11859 }
11860
9360ffd1 11861 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11862 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11863 netdev->ifindex)) ||
a838490b 11864 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11865 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11866 (sig_dbm &&
11867 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11868 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11869 (flags &&
11870 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11871 goto nla_put_failure;
026331c4 11872
3b7b72ee 11873 genlmsg_end(msg, hdr);
026331c4 11874
15e47304 11875 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11876
11877 nla_put_failure:
11878 genlmsg_cancel(msg, hdr);
11879 nlmsg_free(msg);
11880 return -ENOBUFS;
11881}
11882
947add36
JB		 11883void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11884 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11885{
947add36 11886 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11887 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11888 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11889 struct sk_buff *msg;
11890 void *hdr;
11891
947add36
JB		 11892 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11893
026331c4
JM		 11894 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11895 if (!msg)
11896 return;
11897
2e161f78 11898 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11899 if (!hdr) {
11900 nlmsg_free(msg);
11901 return;
11902 }
11903
9360ffd1 11904 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11905 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11906 netdev->ifindex)) ||
a838490b 11907 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11908 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11909 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11910 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11911 goto nla_put_failure;
026331c4 11912
3b7b72ee 11913 genlmsg_end(msg, hdr);
026331c4 11914
68eb5503 11915 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11916 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11917 return;
11918
11919 nla_put_failure:
11920 genlmsg_cancel(msg, hdr);
11921 nlmsg_free(msg);
11922}
947add36 11923EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11924
5b97f49d
JB		 11925static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
11926 const char *mac, gfp_t gfp)
d6dc1a38 11927{
947add36 11928 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 11929 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11930 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11931 void **cb;
947add36 11932
d6dc1a38 11933 if (!msg)
5b97f49d 11934 return NULL;
d6dc1a38 11935
5b97f49d
JB		 11936 cb = (void **)msg->cb;
11937
11938 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11939 if (!cb[0]) {
d6dc1a38 11940 nlmsg_free(msg);
5b97f49d 11941 return NULL;
d6dc1a38
JO		 11942 }
11943
9360ffd1 11944 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11945 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11946 goto nla_put_failure;
d6dc1a38 11947
5b97f49d 11948 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 11949 goto nla_put_failure;
11950
5b97f49d
JB		 11951 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
11952 if (!cb[1])
9360ffd1 11953 goto nla_put_failure;
d6dc1a38 11954
5b97f49d 11955 cb[2] = rdev;
d6dc1a38 11956
5b97f49d
JB		 11957 return msg;
11958 nla_put_failure:
11959 nlmsg_free(msg);
11960 return NULL;
11961}
11962
11963static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
11964{
11965 void **cb = (void **)msg->cb;
11966 struct cfg80211_registered_device *rdev = cb[2];
11967
11968 nla_nest_end(msg, cb[1]);
11969 genlmsg_end(msg, cb[0]);
11970
11971 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 11972
68eb5503 11973 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11974 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 11975}
11976
11977void cfg80211_cqm_rssi_notify(struct net_device *dev,
11978 enum nl80211_cqm_rssi_threshold_event rssi_event,
11979 gfp_t gfp)
11980{
11981 struct sk_buff *msg;
11982
11983 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11984
98f03342
JB		 11985 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
11986 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
11987 return;
11988
5b97f49d
JB		 11989 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
11990 if (!msg)
11991 return;
11992
11993 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11994 rssi_event))
11995 goto nla_put_failure;
11996
11997 cfg80211_send_cqm(msg, gfp);
11998
d6dc1a38
JO		 11999 return;
12000
12001 nla_put_failure:
d6dc1a38
JO		 12002 nlmsg_free(msg);
12003}
947add36 12004EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12005
5b97f49d
JB		 12006void cfg80211_cqm_txe_notify(struct net_device *dev,
12007 const u8 *peer, u32 num_packets,
12008 u32 rate, u32 intvl, gfp_t gfp)
12009{
12010 struct sk_buff *msg;
12011
12012 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12013 if (!msg)
12014 return;
12015
12016 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12017 goto nla_put_failure;
12018
12019 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12020 goto nla_put_failure;
12021
12022 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12023 goto nla_put_failure;
12024
12025 cfg80211_send_cqm(msg, gfp);
12026 return;
12027
12028 nla_put_failure:
12029 nlmsg_free(msg);
12030}
12031EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12032
12033void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12034 const u8 *peer, u32 num_packets, gfp_t gfp)
12035{
12036 struct sk_buff *msg;
12037
12038 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12039
12040 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12041 if (!msg)
12042 return;
12043
12044 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12045 goto nla_put_failure;
12046
12047 cfg80211_send_cqm(msg, gfp);
12048 return;
12049
12050 nla_put_failure:
12051 nlmsg_free(msg);
12052}
12053EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12054
98f03342
JB		 12055void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12056{
12057 struct sk_buff *msg;
12058
12059 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12060 if (!msg)
12061 return;
12062
12063 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12064 goto nla_put_failure;
12065
12066 cfg80211_send_cqm(msg, gfp);
12067 return;
12068
12069 nla_put_failure:
12070 nlmsg_free(msg);
12071}
12072EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12073
947add36
JB		 12074static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12075 struct net_device *netdev, const u8 *bssid,
12076 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12077{
12078 struct sk_buff *msg;
12079 struct nlattr *rekey_attr;
12080 void *hdr;
12081
58050fce 12082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12083 if (!msg)
12084 return;
12085
12086 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12087 if (!hdr) {
12088 nlmsg_free(msg);
12089 return;
12090 }
12091
9360ffd1
DM		 12092 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12093 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12094 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12095 goto nla_put_failure;
e5497d76
JB		 12096
12097 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12098 if (!rekey_attr)
12099 goto nla_put_failure;
12100
9360ffd1
DM		 12101 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12102 NL80211_REPLAY_CTR_LEN, replay_ctr))
12103 goto nla_put_failure;
e5497d76
JB		 12104
12105 nla_nest_end(msg, rekey_attr);
12106
3b7b72ee 12107 genlmsg_end(msg, hdr);
e5497d76 12108
68eb5503 12109 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12110 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12111 return;
12112
12113 nla_put_failure:
12114 genlmsg_cancel(msg, hdr);
12115 nlmsg_free(msg);
12116}
12117
947add36
JB		 12118void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12119 const u8 *replay_ctr, gfp_t gfp)
12120{
12121 struct wireless_dev *wdev = dev->ieee80211_ptr;
12122 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12123 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12124
12125 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12126 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12127}
12128EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12129
12130static void
12131nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12132 struct net_device *netdev, int index,
12133 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12134{
12135 struct sk_buff *msg;
12136 struct nlattr *attr;
12137 void *hdr;
12138
58050fce 12139 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12140 if (!msg)
12141 return;
12142
12143 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12144 if (!hdr) {
12145 nlmsg_free(msg);
12146 return;
12147 }
12148
9360ffd1
DM		 12149 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12150 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12151 goto nla_put_failure;
c9df56b4
JM		 12152
12153 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12154 if (!attr)
12155 goto nla_put_failure;
12156
9360ffd1
DM		 12157 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12158 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12159 (preauth &&
12160 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12161 goto nla_put_failure;
c9df56b4
JM		 12162
12163 nla_nest_end(msg, attr);
12164
3b7b72ee 12165 genlmsg_end(msg, hdr);
c9df56b4 12166
68eb5503 12167 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12168 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12169 return;
12170
12171 nla_put_failure:
12172 genlmsg_cancel(msg, hdr);
12173 nlmsg_free(msg);
12174}
12175
947add36
JB		 12176void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12177 const u8 *bssid, bool preauth, gfp_t gfp)
12178{
12179 struct wireless_dev *wdev = dev->ieee80211_ptr;
12180 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12181 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12182
12183 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12184 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12185}
12186EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12187
12188static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12189 struct net_device *netdev,
12190 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12191 gfp_t gfp,
12192 enum nl80211_commands notif,
12193 u8 count)
5314526b
TP		 12194{
12195 struct sk_buff *msg;
12196 void *hdr;
12197
58050fce 12198 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12199 if (!msg)
12200 return;
12201
f8d7552e 12202 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12203 if (!hdr) {
12204 nlmsg_free(msg);
12205 return;
12206 }
12207
683b6d3b
JB		 12208 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12209 goto nla_put_failure;
12210
12211 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12212 goto nla_put_failure;
5314526b 12213
f8d7552e
LC		 12214 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12215 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12216 goto nla_put_failure;
12217
5314526b
TP		 12218 genlmsg_end(msg, hdr);
12219
68eb5503 12220 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12221 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12222 return;
12223
12224 nla_put_failure:
12225 genlmsg_cancel(msg, hdr);
12226 nlmsg_free(msg);
12227}
12228
947add36
JB		 12229void cfg80211_ch_switch_notify(struct net_device *dev,
12230 struct cfg80211_chan_def *chandef)
84f10708 12231{
947add36
JB		 12232 struct wireless_dev *wdev = dev->ieee80211_ptr;
12233 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12234 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12235
e487eaeb 12236 ASSERT_WDEV_LOCK(wdev);
947add36 12237
e487eaeb 12238 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12239
9e0e2961 12240 wdev->chandef = *chandef;
96f55f12 12241 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12242 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12243 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12244}
12245EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12246
f8d7552e
LC		 12247void cfg80211_ch_switch_started_notify(struct net_device *dev,
12248 struct cfg80211_chan_def *chandef,
12249 u8 count)
12250{
12251 struct wireless_dev *wdev = dev->ieee80211_ptr;
12252 struct wiphy *wiphy = wdev->wiphy;
12253 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12254
12255 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12256
12257 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12258 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12259}
12260EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12261
04f39047
SW		 12262void
12263nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12264 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12265 enum nl80211_radar_event event,
12266 struct net_device *netdev, gfp_t gfp)
12267{
12268 struct sk_buff *msg;
12269 void *hdr;
12270
12271 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12272 if (!msg)
12273 return;
12274
12275 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12276 if (!hdr) {
12277 nlmsg_free(msg);
12278 return;
12279 }
12280
12281 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12282 goto nla_put_failure;
12283
12284 /* NOP and radar events don't need a netdev parameter */
12285 if (netdev) {
12286 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12287
12288 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12289 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12290 goto nla_put_failure;
12291 }
12292
12293 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12294 goto nla_put_failure;
12295
12296 if (nl80211_send_chandef(msg, chandef))
12297 goto nla_put_failure;
12298
9c90a9f6 12299 genlmsg_end(msg, hdr);
04f39047 12300
68eb5503 12301 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12302 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12303 return;
12304
12305 nla_put_failure:
12306 genlmsg_cancel(msg, hdr);
12307 nlmsg_free(msg);
12308}
12309
7f6cf311
JB		 12310void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12311 u64 cookie, bool acked, gfp_t gfp)
12312{
12313 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12314 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12315 struct sk_buff *msg;
12316 void *hdr;
7f6cf311 12317
4ee3e063
BL		 12318 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12319
58050fce 12320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12321
7f6cf311
JB		 12322 if (!msg)
12323 return;
12324
12325 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12326 if (!hdr) {
12327 nlmsg_free(msg);
12328 return;
12329 }
12330
9360ffd1
DM		 12331 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12332 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12333 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12334 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12335 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12336 goto nla_put_failure;
7f6cf311 12337
9c90a9f6 12338 genlmsg_end(msg, hdr);
7f6cf311 12339
68eb5503 12340 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12341 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12342 return;
12343
12344 nla_put_failure:
12345 genlmsg_cancel(msg, hdr);
12346 nlmsg_free(msg);
12347}
12348EXPORT_SYMBOL(cfg80211_probe_status);
12349
5e760230
JB		 12350void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12351 const u8 *frame, size_t len,
37c73b5f 12352 int freq, int sig_dbm)
5e760230 12353{
f26cbf40 12354 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12355 struct sk_buff *msg;
12356 void *hdr;
37c73b5f 12357 struct cfg80211_beacon_registration *reg;
5e760230 12358
4ee3e063
BL		 12359 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12360
37c73b5f
BG		 12361 spin_lock_bh(&rdev->beacon_registrations_lock);
12362 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12363 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12364 if (!msg) {
12365 spin_unlock_bh(&rdev->beacon_registrations_lock);
12366 return;
12367 }
5e760230 12368
37c73b5f
BG		 12369 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12370 if (!hdr)
12371 goto nla_put_failure;
5e760230 12372
37c73b5f
BG		 12373 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12374 (freq &&
12375 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12376 (sig_dbm &&
12377 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12378 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12379 goto nla_put_failure;
5e760230 12380
37c73b5f 12381 genlmsg_end(msg, hdr);
5e760230 12382
37c73b5f
BG		 12383 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12384 }
12385 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12386 return;
12387
12388 nla_put_failure:
37c73b5f
BG		 12389 spin_unlock_bh(&rdev->beacon_registrations_lock);
12390 if (hdr)
12391 genlmsg_cancel(msg, hdr);
5e760230
JB		 12392 nlmsg_free(msg);
12393}
12394EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12395
cd8f7cb4 12396#ifdef CONFIG_PM
8cd4d456
LC		 12397static int cfg80211_net_detect_results(struct sk_buff *msg,
12398 struct cfg80211_wowlan_wakeup *wakeup)
12399{
12400 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12401 struct nlattr *nl_results, *nl_match, *nl_freqs;
12402 int i, j;
12403
12404 nl_results = nla_nest_start(
12405 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12406 if (!nl_results)
12407 return -EMSGSIZE;
12408
12409 for (i = 0; i < nd->n_matches; i++) {
12410 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12411
12412 nl_match = nla_nest_start(msg, i);
12413 if (!nl_match)
12414 break;
12415
12416 /* The SSID attribute is optional in nl80211, but for
12417 * simplicity reasons it's always present in the
12418 * cfg80211 structure. If a driver can't pass the
12419 * SSID, that needs to be changed. A zero length SSID
12420 * is still a valid SSID (wildcard), so it cannot be
12421 * used for this purpose.
12422 */
12423 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12424 match->ssid.ssid)) {
12425 nla_nest_cancel(msg, nl_match);
12426 goto out;
12427 }
12428
12429 if (match->n_channels) {
12430 nl_freqs = nla_nest_start(
12431 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12432 if (!nl_freqs) {
12433 nla_nest_cancel(msg, nl_match);
12434 goto out;
12435 }
12436
12437 for (j = 0; j < match->n_channels; j++) {
12438 if (nla_put_u32(msg,
12439 NL80211_ATTR_WIPHY_FREQ,
12440 match->channels[j])) {
12441 nla_nest_cancel(msg, nl_freqs);
12442 nla_nest_cancel(msg, nl_match);
12443 goto out;
12444 }
12445 }
12446
12447 nla_nest_end(msg, nl_freqs);
12448 }
12449
12450 nla_nest_end(msg, nl_match);
12451 }
12452
12453out:
12454 nla_nest_end(msg, nl_results);
12455 return 0;
12456}
12457
cd8f7cb4
JB		 12458void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12459 struct cfg80211_wowlan_wakeup *wakeup,
12460 gfp_t gfp)
12461{
f26cbf40 12462 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12463 struct sk_buff *msg;
12464 void *hdr;
9c90a9f6 12465 int size = 200;
cd8f7cb4
JB		 12466
12467 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12468
12469 if (wakeup)
12470 size += wakeup->packet_present_len;
12471
12472 msg = nlmsg_new(size, gfp);
12473 if (!msg)
12474 return;
12475
12476 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12477 if (!hdr)
12478 goto free_msg;
12479
12480 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12481 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12482 goto free_msg;
12483
12484 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12485 wdev->netdev->ifindex))
12486 goto free_msg;
12487
12488 if (wakeup) {
12489 struct nlattr *reasons;
12490
12491 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12492 if (!reasons)
12493 goto free_msg;
cd8f7cb4
JB		 12494
12495 if (wakeup->disconnect &&
12496 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12497 goto free_msg;
12498 if (wakeup->magic_pkt &&
12499 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12500 goto free_msg;
12501 if (wakeup->gtk_rekey_failure &&
12502 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12503 goto free_msg;
12504 if (wakeup->eap_identity_req &&
12505 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12506 goto free_msg;
12507 if (wakeup->four_way_handshake &&
12508 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12509 goto free_msg;
12510 if (wakeup->rfkill_release &&
12511 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12512 goto free_msg;
12513
12514 if (wakeup->pattern_idx >= 0 &&
12515 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12516 wakeup->pattern_idx))
12517 goto free_msg;
12518
ae917c9f
JB		 12519 if (wakeup->tcp_match &&
12520 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12521 goto free_msg;
2a0e047e 12522
ae917c9f
JB		 12523 if (wakeup->tcp_connlost &&
12524 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12525 goto free_msg;
2a0e047e 12526
ae917c9f
JB		 12527 if (wakeup->tcp_nomoretokens &&
12528 nla_put_flag(msg,
12529 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12530 goto free_msg;
2a0e047e 12531
cd8f7cb4
JB		 12532 if (wakeup->packet) {
12533 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12534 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12535
12536 if (!wakeup->packet_80211) {
12537 pkt_attr =
12538 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12539 len_attr =
12540 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12541 }
12542
12543 if (wakeup->packet_len &&
12544 nla_put_u32(msg, len_attr, wakeup->packet_len))
12545 goto free_msg;
12546
12547 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12548 wakeup->packet))
12549 goto free_msg;
12550 }
12551
8cd4d456
LC		 12552 if (wakeup->net_detect &&
12553 cfg80211_net_detect_results(msg, wakeup))
12554 goto free_msg;
12555
cd8f7cb4
JB		 12556 nla_nest_end(msg, reasons);
12557 }
12558
9c90a9f6 12559 genlmsg_end(msg, hdr);
cd8f7cb4 12560
68eb5503 12561 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12562 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12563 return;
12564
12565 free_msg:
12566 nlmsg_free(msg);
12567}
12568EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12569#endif
12570
3475b094
JM		 12571void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12572 enum nl80211_tdls_operation oper,
12573 u16 reason_code, gfp_t gfp)
12574{
12575 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12576 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12577 struct sk_buff *msg;
12578 void *hdr;
3475b094
JM		 12579
12580 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12581 reason_code);
12582
12583 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12584 if (!msg)
12585 return;
12586
12587 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12588 if (!hdr) {
12589 nlmsg_free(msg);
12590 return;
12591 }
12592
12593 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12594 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12595 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12596 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12597 (reason_code > 0 &&
12598 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12599 goto nla_put_failure;
12600
9c90a9f6 12601 genlmsg_end(msg, hdr);
3475b094 12602
68eb5503 12603 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12604 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12605 return;
12606
12607 nla_put_failure:
12608 genlmsg_cancel(msg, hdr);
12609 nlmsg_free(msg);
12610}
12611EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12612
026331c4
JM		 12613static int nl80211_netlink_notify(struct notifier_block * nb,
12614 unsigned long state,
12615 void *_notify)
12616{
12617 struct netlink_notify *notify = _notify;
12618 struct cfg80211_registered_device *rdev;
12619 struct wireless_dev *wdev;
37c73b5f 12620 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12621
12622 if (state != NETLINK_URELEASE)
12623 return NOTIFY_DONE;
12624
12625 rcu_read_lock();
12626
5e760230 12627 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12628 bool schedule_destroy_work = false;
93a1e86c
JR		 12629 bool schedule_scan_stop = false;
12630 struct cfg80211_sched_scan_request *sched_scan_req =
12631 rcu_dereference(rdev->sched_scan_req);
12632
12633 if (sched_scan_req && notify->portid &&
12634 sched_scan_req->owner_nlportid == notify->portid)
12635 schedule_scan_stop = true;
78f22b6a
JB		 12636
12637 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12638 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12639
78f22b6a
JB		 12640 if (wdev->owner_nlportid == notify->portid)
12641 schedule_destroy_work = true;
12642 }
12643
37c73b5f
BG		 12644 spin_lock_bh(&rdev->beacon_registrations_lock);
12645 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12646 list) {
12647 if (reg->nlportid == notify->portid) {
12648 list_del(&reg->list);
12649 kfree(reg);
12650 break;
12651 }
12652 }
12653 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12654
12655 if (schedule_destroy_work) {
12656 struct cfg80211_iface_destroy *destroy;
12657
12658 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12659 if (destroy) {
12660 destroy->nlportid = notify->portid;
12661 spin_lock(&rdev->destroy_list_lock);
12662 list_add(&destroy->list, &rdev->destroy_list);
12663 spin_unlock(&rdev->destroy_list_lock);
12664 schedule_work(&rdev->destroy_work);
12665 }
93a1e86c
JR		 12666 } else if (schedule_scan_stop) {
12667 sched_scan_req->owner_nlportid = 0;
12668
12669 if (rdev->ops->sched_scan_stop &&
12670 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12671 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 12672 }
5e760230 12673 }
026331c4
JM		 12674
12675 rcu_read_unlock();
12676
6784c7db 12677 return NOTIFY_OK;
026331c4
JM		 12678}
12679
12680static struct notifier_block nl80211_netlink_notifier = {
12681 .notifier_call = nl80211_netlink_notify,
12682};
12683
355199e0
JM		 12684void cfg80211_ft_event(struct net_device *netdev,
12685 struct cfg80211_ft_event_params *ft_event)
12686{
12687 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12688 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12689 struct sk_buff *msg;
12690 void *hdr;
355199e0
JM		 12691
12692 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12693
12694 if (!ft_event->target_ap)
12695 return;
12696
12697 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12698 if (!msg)
12699 return;
12700
12701 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12702 if (!hdr)
12703 goto out;
355199e0 12704
ae917c9f
JB		 12705 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12706 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12707 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12708 goto out;
355199e0 12709
ae917c9f
JB		 12710 if (ft_event->ies &&
12711 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12712 goto out;
12713 if (ft_event->ric_ies &&
12714 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12715 ft_event->ric_ies))
12716 goto out;
355199e0 12717
9c90a9f6 12718 genlmsg_end(msg, hdr);
355199e0 12719
68eb5503 12720 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12721 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12722 return;
12723 out:
12724 nlmsg_free(msg);
355199e0
JM		 12725}
12726EXPORT_SYMBOL(cfg80211_ft_event);
12727
5de17984
AS		 12728void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12729{
12730 struct cfg80211_registered_device *rdev;
12731 struct sk_buff *msg;
12732 void *hdr;
12733 u32 nlportid;
12734
f26cbf40 12735 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12736 if (!rdev->crit_proto_nlportid)
12737 return;
12738
12739 nlportid = rdev->crit_proto_nlportid;
12740 rdev->crit_proto_nlportid = 0;
12741
12742 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12743 if (!msg)
12744 return;
12745
12746 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12747 if (!hdr)
12748 goto nla_put_failure;
12749
12750 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12751 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12752 goto nla_put_failure;
12753
12754 genlmsg_end(msg, hdr);
12755
12756 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12757 return;
12758
12759 nla_put_failure:
12760 if (hdr)
12761 genlmsg_cancel(msg, hdr);
12762 nlmsg_free(msg);
12763
12764}
12765EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12766
348baf0e
JB		 12767void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12768{
12769 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12770 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12771 struct sk_buff *msg;
12772 void *hdr;
12773
12774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12775 if (!msg)
12776 return;
12777
12778 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12779 if (!hdr)
12780 goto out;
12781
12782 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12783 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12784 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12785 goto out;
12786
12787 genlmsg_end(msg, hdr);
12788
12789 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12790 NL80211_MCGRP_MLME, GFP_KERNEL);
12791 return;
12792 out:
12793 nlmsg_free(msg);
12794}
12795
55682965
JB		 12796/* initialisation/exit functions */
12797
12798int nl80211_init(void)
12799{
0d63cbb5 12800 int err;
55682965 12801
2a94fe48
JB		 12802 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12803 nl80211_mcgrps);
55682965
JB		 12804 if (err)
12805 return err;
12806
026331c4
JM		 12807 err = netlink_register_notifier(&nl80211_netlink_notifier);
12808 if (err)
12809 goto err_out;
12810
55682965
JB		 12811 return 0;
12812 err_out:
12813 genl_unregister_family(&nl80211_fam);
12814 return err;
12815}
12816
12817void nl80211_exit(void)
12818{
026331c4 12819 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12820 genl_unregister_family(&nl80211_fam);
12821}
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