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Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
[mirror_ubuntu-artful-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[] = {
71b836ec
JB		 62 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
63 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
64 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
65 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
66 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 67#ifdef CONFIG_NL80211_TESTMODE
71b836ec 68 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 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 },
4b681c82 400 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 401 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 402 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
55682965
JB		 403};
404
e31b8213 405/* policy for the key attributes */
b54452b0 406static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 407 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 408 [NL80211_KEY_IDX] = { .type = NLA_U8 },
409 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 410 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 411 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
412 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 413 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 414 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
415};
416
417/* policy for the key default flags */
418static const struct nla_policy
419nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
420 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 422};
423
ff1b6e69
JB		 424/* policy for WoWLAN attributes */
425static const struct nla_policy
426nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
427 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 431 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 435 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 436 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 437};
438
439static const struct nla_policy
440nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
441 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
442 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
443 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
444 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
445 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
446 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
448 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
449 },
450 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
451 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
452 },
453 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
454 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
455 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 456};
457
be29b99a
AK		 458/* policy for coalesce rule attributes */
459static const struct nla_policy
460nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
461 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
462 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
463 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
464};
465
e5497d76
JB		 466/* policy for GTK rekey offload attributes */
467static const struct nla_policy
468nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
469 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
470 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
471 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
472};
473
a1f1c21c
LC		 474static const struct nla_policy
475nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 476 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 477 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 478 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 479};
480
97990a06
JB		 481static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
482 struct netlink_callback *cb,
483 struct cfg80211_registered_device **rdev,
484 struct wireless_dev **wdev)
a043897a 485{
97990a06 486 int err;
a043897a 487
97990a06 488 rtnl_lock();
a043897a 489
97990a06
JB		 490 if (!cb->args[0]) {
491 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
492 nl80211_fam.attrbuf, nl80211_fam.maxattr,
493 nl80211_policy);
494 if (err)
495 goto out_unlock;
67748893 496
97990a06
JB		 497 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
498 nl80211_fam.attrbuf);
499 if (IS_ERR(*wdev)) {
500 err = PTR_ERR(*wdev);
501 goto out_unlock;
502 }
f26cbf40 503 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 504 /* 0 is the first index - add 1 to parse only once */
505 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 506 cb->args[1] = (*wdev)->identifier;
507 } else {
c319d50b
JB		 508 /* subtract the 1 again here */
509 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 510 struct wireless_dev *tmp;
67748893 511
97990a06
JB		 512 if (!wiphy) {
513 err = -ENODEV;
514 goto out_unlock;
515 }
f26cbf40 516 *rdev = wiphy_to_rdev(wiphy);
97990a06 517 *wdev = NULL;
67748893 518
97990a06
JB		 519 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
520 if (tmp->identifier == cb->args[1]) {
521 *wdev = tmp;
522 break;
523 }
524 }
67748893 525
97990a06
JB		 526 if (!*wdev) {
527 err = -ENODEV;
528 goto out_unlock;
529 }
67748893
JB		 530 }
531
67748893 532 return 0;
97990a06 533 out_unlock:
67748893
JB		 534 rtnl_unlock();
535 return err;
536}
537
97990a06 538static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 539{
67748893
JB		 540 rtnl_unlock();
541}
542
f4a11bb0
JB		 543/* IE validation */
544static bool is_valid_ie_attr(const struct nlattr *attr)
545{
546 const u8 *pos;
547 int len;
548
549 if (!attr)
550 return true;
551
552 pos = nla_data(attr);
553 len = nla_len(attr);
554
555 while (len) {
556 u8 elemlen;
557
558 if (len < 2)
559 return false;
560 len -= 2;
561
562 elemlen = pos[1];
563 if (elemlen > len)
564 return false;
565
566 len -= elemlen;
567 pos += 2 + elemlen;
568 }
569
570 return true;
571}
572
55682965 573/* message building helper */
15e47304 574static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 575 int flags, u8 cmd)
576{
577 /* since there is no private header just add the generic one */
15e47304 578 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 579}
580
5dab3b8a 581static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 582 struct ieee80211_channel *chan,
583 bool large)
5dab3b8a 584{
ea077c1c
RL		 585 /* Some channels must be completely excluded from the
586 * list to protect old user-space tools from breaking
587 */
588 if (!large && chan->flags &
589 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
590 return 0;
591
9360ffd1
DM		 592 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
593 chan->center_freq))
594 goto nla_put_failure;
5dab3b8a 595
9360ffd1
DM		 596 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
597 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
598 goto nla_put_failure;
8fe02e16
LR		 599 if (chan->flags & IEEE80211_CHAN_NO_IR) {
600 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
601 goto nla_put_failure;
602 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
603 goto nla_put_failure;
604 }
cdc89b97
JB		 605 if (chan->flags & IEEE80211_CHAN_RADAR) {
606 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
607 goto nla_put_failure;
608 if (large) {
609 u32 time;
610
611 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
612
613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
614 chan->dfs_state))
615 goto nla_put_failure;
616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
617 time))
618 goto nla_put_failure;
089027e5
JD		 619 if (nla_put_u32(msg,
620 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
621 chan->dfs_cac_ms))
622 goto nla_put_failure;
cdc89b97
JB		 623 }
624 }
5dab3b8a 625
fe1abafd
JB		 626 if (large) {
627 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
635 goto nla_put_failure;
636 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
638 goto nla_put_failure;
570dbde1
DS		 639 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
641 goto nla_put_failure;
642 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
644 goto nla_put_failure;
ea077c1c
RL		 645 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
646 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
647 goto nla_put_failure;
648 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
649 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
650 goto nla_put_failure;
fe1abafd
JB		 651 }
652
9360ffd1
DM		 653 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
654 DBM_TO_MBM(chan->max_power)))
655 goto nla_put_failure;
5dab3b8a
LR		 656
657 return 0;
658
659 nla_put_failure:
660 return -ENOBUFS;
661}
662
55682965
JB		 663/* netlink command implementations */
664
b9454e83
JB		 665struct key_parse {
666 struct key_params p;
667 int idx;
e31b8213 668 int type;
b9454e83 669 bool def, defmgmt;
dbd2fd65 670 bool def_uni, def_multi;
b9454e83
JB		 671};
672
673static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
674{
675 struct nlattr *tb[NL80211_KEY_MAX + 1];
676 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
677 nl80211_key_policy);
678 if (err)
679 return err;
680
681 k->def = !!tb[NL80211_KEY_DEFAULT];
682 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
683
dbd2fd65
JB		 684 if (k->def) {
685 k->def_uni = true;
686 k->def_multi = true;
687 }
688 if (k->defmgmt)
689 k->def_multi = true;
690
b9454e83
JB		 691 if (tb[NL80211_KEY_IDX])
692 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
693
694 if (tb[NL80211_KEY_DATA]) {
695 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
696 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
697 }
698
699 if (tb[NL80211_KEY_SEQ]) {
700 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
701 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
702 }
703
704 if (tb[NL80211_KEY_CIPHER])
705 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
706
e31b8213
JB		 707 if (tb[NL80211_KEY_TYPE]) {
708 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
709 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
710 return -EINVAL;
711 }
712
dbd2fd65
JB		 713 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
714 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 715 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
716 tb[NL80211_KEY_DEFAULT_TYPES],
717 nl80211_key_default_policy);
dbd2fd65
JB		 718 if (err)
719 return err;
720
721 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
722 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
723 }
724
b9454e83
JB		 725 return 0;
726}
727
728static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
729{
730 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
731 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
732 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
733 }
734
735 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
736 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
737 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
738 }
739
740 if (info->attrs[NL80211_ATTR_KEY_IDX])
741 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
742
743 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
744 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
745
746 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
747 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
748
dbd2fd65
JB		 749 if (k->def) {
750 k->def_uni = true;
751 k->def_multi = true;
752 }
753 if (k->defmgmt)
754 k->def_multi = true;
755
e31b8213
JB		 756 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
757 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
758 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
759 return -EINVAL;
760 }
761
dbd2fd65
JB		 762 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
763 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
764 int err = nla_parse_nested(
765 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
766 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
767 nl80211_key_default_policy);
768 if (err)
769 return err;
770
771 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
772 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
773 }
774
b9454e83
JB		 775 return 0;
776}
777
778static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
779{
780 int err;
781
782 memset(k, 0, sizeof(*k));
783 k->idx = -1;
e31b8213 784 k->type = -1;
b9454e83
JB		 785
786 if (info->attrs[NL80211_ATTR_KEY])
787 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
788 else
789 err = nl80211_parse_key_old(info, k);
790
791 if (err)
792 return err;
793
794 if (k->def && k->defmgmt)
795 return -EINVAL;
796
dbd2fd65
JB		 797 if (k->defmgmt) {
798 if (k->def_uni || !k->def_multi)
799 return -EINVAL;
800 }
801
b9454e83
JB		 802 if (k->idx != -1) {
803 if (k->defmgmt) {
804 if (k->idx < 4 || k->idx > 5)
805 return -EINVAL;
806 } else if (k->def) {
807 if (k->idx < 0 || k->idx > 3)
808 return -EINVAL;
809 } else {
810 if (k->idx < 0 || k->idx > 5)
811 return -EINVAL;
812 }
813 }
814
815 return 0;
816}
817
fffd0934
JB		 818static struct cfg80211_cached_keys *
819nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 820 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 821{
822 struct key_parse parse;
823 struct nlattr *key;
824 struct cfg80211_cached_keys *result;
825 int rem, err, def = 0;
826
827 result = kzalloc(sizeof(*result), GFP_KERNEL);
828 if (!result)
829 return ERR_PTR(-ENOMEM);
830
831 result->def = -1;
832 result->defmgmt = -1;
833
834 nla_for_each_nested(key, keys, rem) {
835 memset(&parse, 0, sizeof(parse));
836 parse.idx = -1;
837
838 err = nl80211_parse_key_new(key, &parse);
839 if (err)
840 goto error;
841 err = -EINVAL;
842 if (!parse.p.key)
843 goto error;
844 if (parse.idx < 0 || parse.idx > 4)
845 goto error;
846 if (parse.def) {
847 if (def)
848 goto error;
849 def = 1;
850 result->def = parse.idx;
dbd2fd65
JB		 851 if (!parse.def_uni || !parse.def_multi)
852 goto error;
fffd0934
JB		 853 } else if (parse.defmgmt)
854 goto error;
855 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 856 parse.idx, false, NULL);
fffd0934
JB		 857 if (err)
858 goto error;
859 result->params[parse.idx].cipher = parse.p.cipher;
860 result->params[parse.idx].key_len = parse.p.key_len;
861 result->params[parse.idx].key = result->data[parse.idx];
862 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 863
864 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
865 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
866 if (no_ht)
867 *no_ht = true;
868 }
fffd0934
JB		 869 }
870
871 return result;
872 error:
873 kfree(result);
874 return ERR_PTR(err);
875}
876
877static int nl80211_key_allowed(struct wireless_dev *wdev)
878{
879 ASSERT_WDEV_LOCK(wdev);
880
fffd0934
JB		 881 switch (wdev->iftype) {
882 case NL80211_IFTYPE_AP:
883 case NL80211_IFTYPE_AP_VLAN:
074ac8df 884 case NL80211_IFTYPE_P2P_GO:
ff973af7 885 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 886 break;
887 case NL80211_IFTYPE_ADHOC:
fffd0934 888 case NL80211_IFTYPE_STATION:
074ac8df 889 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 890 if (!wdev->current_bss)
fffd0934
JB		 891 return -ENOLINK;
892 break;
de4fcbad 893 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 894 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 895 case NL80211_IFTYPE_MONITOR:
896 case NL80211_IFTYPE_P2P_DEVICE:
897 case NL80211_IFTYPE_WDS:
898 case NUM_NL80211_IFTYPES:
fffd0934
JB		 899 return -EINVAL;
900 }
901
902 return 0;
903}
904
664834de
JM		 905static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
906 struct nlattr *tb)
907{
908 struct ieee80211_channel *chan;
909
910 if (tb == NULL)
911 return NULL;
912 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
913 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
914 return NULL;
915 return chan;
916}
917
7527a782
JB		 918static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
919{
920 struct nlattr *nl_modes = nla_nest_start(msg, attr);
921 int i;
922
923 if (!nl_modes)
924 goto nla_put_failure;
925
926 i = 0;
927 while (ifmodes) {
9360ffd1
DM		 928 if ((ifmodes & 1) && nla_put_flag(msg, i))
929 goto nla_put_failure;
7527a782
JB		 930 ifmodes >>= 1;
931 i++;
932 }
933
934 nla_nest_end(msg, nl_modes);
935 return 0;
936
937nla_put_failure:
938 return -ENOBUFS;
939}
940
941static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 942 struct sk_buff *msg,
943 bool large)
7527a782
JB		 944{
945 struct nlattr *nl_combis;
946 int i, j;
947
948 nl_combis = nla_nest_start(msg,
949 NL80211_ATTR_INTERFACE_COMBINATIONS);
950 if (!nl_combis)
951 goto nla_put_failure;
952
953 for (i = 0; i < wiphy->n_iface_combinations; i++) {
954 const struct ieee80211_iface_combination *c;
955 struct nlattr *nl_combi, *nl_limits;
956
957 c = &wiphy->iface_combinations[i];
958
959 nl_combi = nla_nest_start(msg, i + 1);
960 if (!nl_combi)
961 goto nla_put_failure;
962
963 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
964 if (!nl_limits)
965 goto nla_put_failure;
966
967 for (j = 0; j < c->n_limits; j++) {
968 struct nlattr *nl_limit;
969
970 nl_limit = nla_nest_start(msg, j + 1);
971 if (!nl_limit)
972 goto nla_put_failure;
9360ffd1
DM		 973 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
974 c->limits[j].max))
975 goto nla_put_failure;
7527a782
JB		 976 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
977 c->limits[j].types))
978 goto nla_put_failure;
979 nla_nest_end(msg, nl_limit);
980 }
981
982 nla_nest_end(msg, nl_limits);
983
9360ffd1
DM		 984 if (c->beacon_int_infra_match &&
985 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
986 goto nla_put_failure;
987 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
988 c->num_different_channels) ||
989 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
990 c->max_interfaces))
991 goto nla_put_failure;
cdc89b97 992 if (large &&
8c48b50a
FF		 993 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
994 c->radar_detect_widths) ||
995 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
996 c->radar_detect_regions)))
cdc89b97 997 goto nla_put_failure;
7527a782
JB		 998
999 nla_nest_end(msg, nl_combi);
1000 }
1001
1002 nla_nest_end(msg, nl_combis);
1003
1004 return 0;
1005nla_put_failure:
1006 return -ENOBUFS;
1007}
1008
3713b4e3 1009#ifdef CONFIG_PM
b56cf720
JB		 1010static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1011 struct sk_buff *msg)
1012{
964dc9e2 1013 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1014 struct nlattr *nl_tcp;
1015
1016 if (!tcp)
1017 return 0;
1018
1019 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1020 if (!nl_tcp)
1021 return -ENOBUFS;
1022
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1024 tcp->data_payload_max))
1025 return -ENOBUFS;
1026
1027 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1028 tcp->data_payload_max))
1029 return -ENOBUFS;
1030
1031 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1032 return -ENOBUFS;
1033
1034 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1035 sizeof(*tcp->tok), tcp->tok))
1036 return -ENOBUFS;
1037
1038 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1039 tcp->data_interval_max))
1040 return -ENOBUFS;
1041
1042 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1043 tcp->wake_payload_max))
1044 return -ENOBUFS;
1045
1046 nla_nest_end(msg, nl_tcp);
1047 return 0;
1048}
1049
3713b4e3 1050static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1051 struct cfg80211_registered_device *rdev,
b56cf720 1052 bool large)
55682965 1053{
3713b4e3 1054 struct nlattr *nl_wowlan;
55682965 1055
1b8ec87a 1056 if (!rdev->wiphy.wowlan)
3713b4e3 1057 return 0;
55682965 1058
3713b4e3
JB		 1059 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1060 if (!nl_wowlan)
1061 return -ENOBUFS;
9360ffd1 1062
1b8ec87a 1063 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1064 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1065 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1067 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1068 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1069 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1070 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1071 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1075 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1076 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1077 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1079 return -ENOBUFS;
9360ffd1 1080
1b8ec87a 1081 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1082 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1083 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1084 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1085 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1086 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1087 };
9360ffd1 1088
3713b4e3
JB		 1089 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1090 sizeof(pat), &pat))
1091 return -ENOBUFS;
1092 }
9360ffd1 1093
75453ccb
LC		 1094 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1095 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1096 rdev->wiphy.wowlan->max_nd_match_sets))
1097 return -ENOBUFS;
1098
1b8ec87a 1099 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1100 return -ENOBUFS;
1101
3713b4e3 1102 nla_nest_end(msg, nl_wowlan);
9360ffd1 1103
3713b4e3
JB		 1104 return 0;
1105}
1106#endif
9360ffd1 1107
be29b99a 1108static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1109 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1110{
1111 struct nl80211_coalesce_rule_support rule;
1112
1b8ec87a 1113 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1114 return 0;
1115
1b8ec87a
ZG		 1116 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1117 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1118 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1119 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1120 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1121 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1122
1123 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1124 return -ENOBUFS;
1125
1126 return 0;
1127}
1128
3713b4e3
JB		 1129static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1130 struct ieee80211_supported_band *sband)
1131{
1132 struct nlattr *nl_rates, *nl_rate;
1133 struct ieee80211_rate *rate;
1134 int i;
87bbbe22 1135
3713b4e3
JB		 1136 /* add HT info */
1137 if (sband->ht_cap.ht_supported &&
1138 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1139 sizeof(sband->ht_cap.mcs),
1140 &sband->ht_cap.mcs) ||
1141 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1142 sband->ht_cap.cap) ||
1143 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1144 sband->ht_cap.ampdu_factor) ||
1145 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1146 sband->ht_cap.ampdu_density)))
1147 return -ENOBUFS;
afe0cbf8 1148
3713b4e3
JB		 1149 /* add VHT info */
1150 if (sband->vht_cap.vht_supported &&
1151 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1152 sizeof(sband->vht_cap.vht_mcs),
1153 &sband->vht_cap.vht_mcs) ||
1154 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1155 sband->vht_cap.cap)))
1156 return -ENOBUFS;
f59ac048 1157
3713b4e3
JB		 1158 /* add bitrates */
1159 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1160 if (!nl_rates)
1161 return -ENOBUFS;
ee688b00 1162
3713b4e3
JB		 1163 for (i = 0; i < sband->n_bitrates; i++) {
1164 nl_rate = nla_nest_start(msg, i);
1165 if (!nl_rate)
1166 return -ENOBUFS;
ee688b00 1167
3713b4e3
JB		 1168 rate = &sband->bitrates[i];
1169 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1170 rate->bitrate))
1171 return -ENOBUFS;
1172 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1173 nla_put_flag(msg,
1174 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1175 return -ENOBUFS;
ee688b00 1176
3713b4e3
JB		 1177 nla_nest_end(msg, nl_rate);
1178 }
d51626df 1179
3713b4e3 1180 nla_nest_end(msg, nl_rates);
bf0c111e 1181
3713b4e3
JB		 1182 return 0;
1183}
ee688b00 1184
3713b4e3
JB		 1185static int
1186nl80211_send_mgmt_stypes(struct sk_buff *msg,
1187 const struct ieee80211_txrx_stypes *mgmt_stypes)
1188{
1189 u16 stypes;
1190 struct nlattr *nl_ftypes, *nl_ifs;
1191 enum nl80211_iftype ift;
1192 int i;
ee688b00 1193
3713b4e3
JB		 1194 if (!mgmt_stypes)
1195 return 0;
5dab3b8a 1196
3713b4e3
JB		 1197 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1198 if (!nl_ifs)
1199 return -ENOBUFS;
e2f367f2 1200
3713b4e3
JB		 1201 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1202 nl_ftypes = nla_nest_start(msg, ift);
1203 if (!nl_ftypes)
1204 return -ENOBUFS;
1205 i = 0;
1206 stypes = mgmt_stypes[ift].tx;
1207 while (stypes) {
1208 if ((stypes & 1) &&
1209 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1210 (i << 4) | IEEE80211_FTYPE_MGMT))
1211 return -ENOBUFS;
1212 stypes >>= 1;
1213 i++;
ee688b00 1214 }
3713b4e3
JB		 1215 nla_nest_end(msg, nl_ftypes);
1216 }
ee688b00 1217
3713b4e3 1218 nla_nest_end(msg, nl_ifs);
ee688b00 1219
3713b4e3
JB		 1220 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1221 if (!nl_ifs)
1222 return -ENOBUFS;
ee688b00 1223
3713b4e3
JB		 1224 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1225 nl_ftypes = nla_nest_start(msg, ift);
1226 if (!nl_ftypes)
1227 return -ENOBUFS;
1228 i = 0;
1229 stypes = mgmt_stypes[ift].rx;
1230 while (stypes) {
1231 if ((stypes & 1) &&
1232 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1233 (i << 4) | IEEE80211_FTYPE_MGMT))
1234 return -ENOBUFS;
1235 stypes >>= 1;
1236 i++;
1237 }
1238 nla_nest_end(msg, nl_ftypes);
1239 }
1240 nla_nest_end(msg, nl_ifs);
ee688b00 1241
3713b4e3
JB		 1242 return 0;
1243}
ee688b00 1244
86e8cf98
JB		 1245struct nl80211_dump_wiphy_state {
1246 s64 filter_wiphy;
1247 long start;
1248 long split_start, band_start, chan_start;
1249 bool split;
1250};
1251
1b8ec87a 1252static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1253 enum nl80211_commands cmd,
3713b4e3 1254 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1255 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1256{
1257 void *hdr;
1258 struct nlattr *nl_bands, *nl_band;
1259 struct nlattr *nl_freqs, *nl_freq;
1260 struct nlattr *nl_cmds;
1261 enum ieee80211_band band;
1262 struct ieee80211_channel *chan;
1263 int i;
1264 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1265 rdev->wiphy.mgmt_stypes;
fe1abafd 1266 u32 features;
ee688b00 1267
3bb20556 1268 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1269 if (!hdr)
1270 return -ENOBUFS;
ee688b00 1271
86e8cf98
JB		 1272 if (WARN_ON(!state))
1273 return -EINVAL;
ee688b00 1274
1b8ec87a 1275 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1276 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1277 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1278 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1279 cfg80211_rdev_list_generation))
8fdc621d
JB		 1280 goto nla_put_failure;
1281
3bb20556
JB		 1282 if (cmd != NL80211_CMD_NEW_WIPHY)
1283 goto finish;
1284
86e8cf98 1285 switch (state->split_start) {
3713b4e3
JB		 1286 case 0:
1287 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1288 rdev->wiphy.retry_short) ||
3713b4e3 1289 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1290 rdev->wiphy.retry_long) ||
3713b4e3 1291 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1292 rdev->wiphy.frag_threshold) ||
3713b4e3 1293 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1294 rdev->wiphy.rts_threshold) ||
3713b4e3 1295 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1296 rdev->wiphy.coverage_class) ||
3713b4e3 1297 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1298 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1299 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1300 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1301 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1302 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1303 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1304 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1305 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1306 rdev->wiphy.max_match_sets))
9360ffd1 1307 goto nla_put_failure;
3713b4e3 1308
1b8ec87a 1309 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1310 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1311 goto nla_put_failure;
1b8ec87a 1312 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1313 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1314 goto nla_put_failure;
1b8ec87a 1315 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1316 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1317 goto nla_put_failure;
1b8ec87a 1318 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1319 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1320 goto nla_put_failure;
1b8ec87a 1321 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1322 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1323 goto nla_put_failure;
1b8ec87a 1324 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1325 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1326 goto nla_put_failure;
86e8cf98
JB		 1327 state->split_start++;
1328 if (state->split)
3713b4e3
JB		 1329 break;
1330 case 1:
1331 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1332 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1333 rdev->wiphy.cipher_suites))
3713b4e3 1334 goto nla_put_failure;
4745fc09 1335
3713b4e3 1336 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1337 rdev->wiphy.max_num_pmkids))
3713b4e3 1338 goto nla_put_failure;
b23aa676 1339
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1341 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1342 goto nla_put_failure;
b23aa676 1343
3713b4e3 1344 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1345 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1346 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1347 rdev->wiphy.available_antennas_rx))
9360ffd1 1348 goto nla_put_failure;
b23aa676 1349
1b8ec87a 1350 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1351 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1352 rdev->wiphy.probe_resp_offload))
3713b4e3 1353 goto nla_put_failure;
8fdc621d 1354
1b8ec87a
ZG		 1355 if ((rdev->wiphy.available_antennas_tx ||
1356 rdev->wiphy.available_antennas_rx) &&
1357 rdev->ops->get_antenna) {
3713b4e3
JB		 1358 u32 tx_ant = 0, rx_ant = 0;
1359 int res;
1b8ec87a 1360 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1361 if (!res) {
1362 if (nla_put_u32(msg,
1363 NL80211_ATTR_WIPHY_ANTENNA_TX,
1364 tx_ant) ||
1365 nla_put_u32(msg,
1366 NL80211_ATTR_WIPHY_ANTENNA_RX,
1367 rx_ant))
1368 goto nla_put_failure;
1369 }
1370 }
a293911d 1371
86e8cf98
JB		 1372 state->split_start++;
1373 if (state->split)
3713b4e3
JB		 1374 break;
1375 case 2:
1376 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1377 rdev->wiphy.interface_modes))
3713b4e3 1378 goto nla_put_failure;
86e8cf98
JB		 1379 state->split_start++;
1380 if (state->split)
3713b4e3
JB		 1381 break;
1382 case 3:
1383 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1384 if (!nl_bands)
1385 goto nla_put_failure;
f7ca38df 1386
86e8cf98
JB		 1387 for (band = state->band_start;
1388 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1389 struct ieee80211_supported_band *sband;
2e161f78 1390
1b8ec87a 1391 sband = rdev->wiphy.bands[band];
2e161f78 1392
3713b4e3
JB		 1393 if (!sband)
1394 continue;
1395
1396 nl_band = nla_nest_start(msg, band);
1397 if (!nl_band)
2e161f78 1398 goto nla_put_failure;
3713b4e3 1399
86e8cf98 1400 switch (state->chan_start) {
3713b4e3
JB		 1401 case 0:
1402 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1403 goto nla_put_failure;
86e8cf98
JB		 1404 state->chan_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 default:
1408 /* add frequencies */
1409 nl_freqs = nla_nest_start(
1410 msg, NL80211_BAND_ATTR_FREQS);
1411 if (!nl_freqs)
1412 goto nla_put_failure;
1413
86e8cf98 1414 for (i = state->chan_start - 1;
3713b4e3
JB		 1415 i < sband->n_channels;
1416 i++) {
1417 nl_freq = nla_nest_start(msg, i);
1418 if (!nl_freq)
1419 goto nla_put_failure;
1420
1421 chan = &sband->channels[i];
1422
86e8cf98
JB		 1423 if (nl80211_msg_put_channel(
1424 msg, chan,
1425 state->split))
3713b4e3
JB		 1426 goto nla_put_failure;
1427
1428 nla_nest_end(msg, nl_freq);
86e8cf98 1429 if (state->split)
3713b4e3
JB		 1430 break;
1431 }
1432 if (i < sband->n_channels)
86e8cf98 1433 state->chan_start = i + 2;
3713b4e3 1434 else
86e8cf98 1435 state->chan_start = 0;
3713b4e3
JB		 1436 nla_nest_end(msg, nl_freqs);
1437 }
1438
1439 nla_nest_end(msg, nl_band);
1440
86e8cf98 1441 if (state->split) {
3713b4e3 1442 /* start again here */
86e8cf98 1443 if (state->chan_start)
3713b4e3
JB		 1444 band--;
1445 break;
2e161f78 1446 }
2e161f78 1447 }
3713b4e3 1448 nla_nest_end(msg, nl_bands);
2e161f78 1449
3713b4e3 1450 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1451 state->band_start = band + 1;
3713b4e3 1452 else
86e8cf98 1453 state->band_start = 0;
74b70a4e 1454
3713b4e3 1455 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1456 if (state->band_start == 0 && state->chan_start == 0)
1457 state->split_start++;
1458 if (state->split)
3713b4e3
JB		 1459 break;
1460 case 4:
1461 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1462 if (!nl_cmds)
2e161f78
JB		 1463 goto nla_put_failure;
1464
3713b4e3
JB		 1465 i = 0;
1466#define CMD(op, n) \
1467 do { \
1b8ec87a 1468 if (rdev->ops->op) { \
3713b4e3
JB		 1469 i++; \
1470 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1471 goto nla_put_failure; \
1472 } \
1473 } while (0)
1474
1475 CMD(add_virtual_intf, NEW_INTERFACE);
1476 CMD(change_virtual_intf, SET_INTERFACE);
1477 CMD(add_key, NEW_KEY);
1478 CMD(start_ap, START_AP);
1479 CMD(add_station, NEW_STATION);
1480 CMD(add_mpath, NEW_MPATH);
1481 CMD(update_mesh_config, SET_MESH_CONFIG);
1482 CMD(change_bss, SET_BSS);
1483 CMD(auth, AUTHENTICATE);
1484 CMD(assoc, ASSOCIATE);
1485 CMD(deauth, DEAUTHENTICATE);
1486 CMD(disassoc, DISASSOCIATE);
1487 CMD(join_ibss, JOIN_IBSS);
1488 CMD(join_mesh, JOIN_MESH);
1489 CMD(set_pmksa, SET_PMKSA);
1490 CMD(del_pmksa, DEL_PMKSA);
1491 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1492 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1493 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1494 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1495 CMD(mgmt_tx, FRAME);
1496 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1497 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1498 i++;
1499 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1500 goto nla_put_failure;
2e161f78 1501 }
1b8ec87a
ZG		 1502 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1503 rdev->ops->join_mesh) {
3713b4e3
JB		 1504 i++;
1505 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1506 goto nla_put_failure;
1507 }
1508 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1509 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1510 CMD(tdls_mgmt, TDLS_MGMT);
1511 CMD(tdls_oper, TDLS_OPER);
1512 }
1b8ec87a 1513 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1514 CMD(sched_scan_start, START_SCHED_SCAN);
1515 CMD(probe_client, PROBE_CLIENT);
1516 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1517 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1518 i++;
1519 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1520 goto nla_put_failure;
1521 }
1522 CMD(start_p2p_device, START_P2P_DEVICE);
1523 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1524#ifdef CONFIG_NL80211_TESTMODE
1525 CMD(testmode_cmd, TESTMODE);
1526#endif
86e8cf98 1527 if (state->split) {
5de17984
AS		 1528 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1529 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1530 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1531 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1532 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1533 if (rdev->wiphy.features &
1534 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1535 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1536 }
02df00eb 1537 /* add into the if now */
3713b4e3 1538#undef CMD
ff1b6e69 1539
1b8ec87a 1540 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1541 i++;
1542 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1543 goto nla_put_failure;
ff1b6e69
JB		 1544 }
1545
1b8ec87a 1546 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1547 i++;
1548 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1549 goto nla_put_failure;
1550 }
1551
1552 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1553 state->split_start++;
1554 if (state->split)
3713b4e3
JB		 1555 break;
1556 case 5:
1b8ec87a
ZG		 1557 if (rdev->ops->remain_on_channel &&
1558 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1559 nla_put_u32(msg,
1560 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1561 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1562 goto nla_put_failure;
1563
1b8ec87a 1564 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1565 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1566 goto nla_put_failure;
1567
1568 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1569 goto nla_put_failure;
86e8cf98
JB		 1570 state->split_start++;
1571 if (state->split)
3713b4e3
JB		 1572 break;
1573 case 6:
1574#ifdef CONFIG_PM
1b8ec87a 1575 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1576 goto nla_put_failure;
86e8cf98
JB		 1577 state->split_start++;
1578 if (state->split)
3713b4e3
JB		 1579 break;
1580#else
86e8cf98 1581 state->split_start++;
dfb89c56 1582#endif
3713b4e3
JB		 1583 case 7:
1584 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1585 rdev->wiphy.software_iftypes))
3713b4e3 1586 goto nla_put_failure;
ff1b6e69 1587
1b8ec87a 1588 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1589 state->split))
3713b4e3 1590 goto nla_put_failure;
7527a782 1591
86e8cf98
JB		 1592 state->split_start++;
1593 if (state->split)
3713b4e3
JB		 1594 break;
1595 case 8:
1b8ec87a 1596 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1597 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1598 rdev->wiphy.ap_sme_capa))
3713b4e3 1599 goto nla_put_failure;
7527a782 1600
1b8ec87a 1601 features = rdev->wiphy.features;
fe1abafd
JB		 1602 /*
1603 * We can only add the per-channel limit information if the
1604 * dump is split, otherwise it makes it too big. Therefore
1605 * only advertise it in that case.
1606 */
86e8cf98 1607 if (state->split)
fe1abafd
JB		 1608 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1609 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1610 goto nla_put_failure;
562a7480 1611
1b8ec87a 1612 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1613 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1614 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1615 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1616 goto nla_put_failure;
1f074bd8 1617
1b8ec87a
ZG		 1618 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1619 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1620 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1621 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1622 goto nla_put_failure;
7e7c8926 1623
3713b4e3
JB		 1624 /*
1625 * Any information below this point is only available to
1626 * applications that can deal with it being split. This
1627 * helps ensure that newly added capabilities don't break
1628 * older tools by overrunning their buffers.
1629 *
1630 * We still increment split_start so that in the split
1631 * case we'll continue with more data in the next round,
1632 * but break unconditionally so unsplit data stops here.
1633 */
86e8cf98 1634 state->split_start++;
3713b4e3
JB		 1635 break;
1636 case 9:
1b8ec87a 1637 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1638 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1639 rdev->wiphy.extended_capabilities_len,
1640 rdev->wiphy.extended_capabilities) ||
fe1abafd 1641 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1642 rdev->wiphy.extended_capabilities_len,
1643 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1644 goto nla_put_failure;
a50df0c4 1645
1b8ec87a 1646 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1647 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1648 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1649 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1650 goto nla_put_failure;
1651
be29b99a
AK		 1652 state->split_start++;
1653 break;
1654 case 10:
1b8ec87a 1655 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1656 goto nla_put_failure;
1657
1b8ec87a 1658 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1659 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1660 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1661 goto nla_put_failure;
b43504cf 1662
1b8ec87a 1663 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1664 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1665 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1666 goto nla_put_failure;
1667
ad7e718c
JB		 1668 state->split_start++;
1669 break;
1670 case 11:
1b8ec87a 1671 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1672 const struct nl80211_vendor_cmd_info *info;
1673 struct nlattr *nested;
1674
1675 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1676 if (!nested)
1677 goto nla_put_failure;
1678
1b8ec87a
ZG		 1679 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1680 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1681 if (nla_put(msg, i + 1, sizeof(*info), info))
1682 goto nla_put_failure;
1683 }
1684 nla_nest_end(msg, nested);
1685 }
1686
1b8ec87a 1687 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1688 const struct nl80211_vendor_cmd_info *info;
1689 struct nlattr *nested;
ad7e718c 1690
567ffc35
JB		 1691 nested = nla_nest_start(msg,
1692 NL80211_ATTR_VENDOR_EVENTS);
1693 if (!nested)
ad7e718c 1694 goto nla_put_failure;
567ffc35 1695
1b8ec87a
ZG		 1696 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1697 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1698 if (nla_put(msg, i + 1, sizeof(*info), info))
1699 goto nla_put_failure;
1700 }
1701 nla_nest_end(msg, nested);
1702 }
9a774c78
AO		 1703 state->split_start++;
1704 break;
1705 case 12:
1706 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1707 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1708 rdev->wiphy.max_num_csa_counters))
1709 goto nla_put_failure;
01e0daa4 1710
1bdd716c
AN		 1711 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1712 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1713 goto nla_put_failure;
1714
d75bb06b
GKS		 1715 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1716 sizeof(rdev->wiphy.ext_features),
1717 rdev->wiphy.ext_features))
1718 goto nla_put_failure;
1719
3713b4e3 1720 /* done */
86e8cf98 1721 state->split_start = 0;
3713b4e3
JB		 1722 break;
1723 }
3bb20556 1724 finish:
053c095a
JB		 1725 genlmsg_end(msg, hdr);
1726 return 0;
55682965
JB		 1727
1728 nla_put_failure:
bc3ed28c
TG		 1729 genlmsg_cancel(msg, hdr);
1730 return -EMSGSIZE;
55682965
JB		 1731}
1732
86e8cf98
JB		 1733static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1734 struct netlink_callback *cb,
1735 struct nl80211_dump_wiphy_state *state)
1736{
1737 struct nlattr **tb = nl80211_fam.attrbuf;
1738 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1739 tb, nl80211_fam.maxattr, nl80211_policy);
1740 /* ignore parse errors for backward compatibility */
1741 if (ret)
1742 return 0;
1743
1744 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1745 if (tb[NL80211_ATTR_WIPHY])
1746 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1747 if (tb[NL80211_ATTR_WDEV])
1748 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1749 if (tb[NL80211_ATTR_IFINDEX]) {
1750 struct net_device *netdev;
1751 struct cfg80211_registered_device *rdev;
1752 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1753
7f2b8562 1754 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1755 if (!netdev)
1756 return -ENODEV;
1757 if (netdev->ieee80211_ptr) {
f26cbf40 1758 rdev = wiphy_to_rdev(
86e8cf98
JB		 1759 netdev->ieee80211_ptr->wiphy);
1760 state->filter_wiphy = rdev->wiphy_idx;
1761 }
86e8cf98
JB		 1762 }
1763
1764 return 0;
1765}
1766
55682965
JB		 1767static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1768{
645e77de 1769 int idx = 0, ret;
86e8cf98 1770 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1771 struct cfg80211_registered_device *rdev;
3a5a423b 1772
5fe231e8 1773 rtnl_lock();
86e8cf98
JB		 1774 if (!state) {
1775 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1776 if (!state) {
1777 rtnl_unlock();
86e8cf98 1778 return -ENOMEM;
3713b4e3 1779 }
86e8cf98
JB		 1780 state->filter_wiphy = -1;
1781 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1782 if (ret) {
1783 kfree(state);
1784 rtnl_unlock();
1785 return ret;
3713b4e3 1786 }
86e8cf98 1787 cb->args[0] = (long)state;
3713b4e3
JB		 1788 }
1789
1b8ec87a
ZG		 1790 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1791 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1792 continue;
86e8cf98 1793 if (++idx <= state->start)
55682965 1794 continue;
86e8cf98 1795 if (state->filter_wiphy != -1 &&
1b8ec87a 1796 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1797 continue;
1798 /* attempt to fit multiple wiphy data chunks into the skb */
1799 do {
3bb20556
JB		 1800 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1801 skb,
3713b4e3
JB		 1802 NETLINK_CB(cb->skb).portid,
1803 cb->nlh->nlmsg_seq,
86e8cf98 1804 NLM_F_MULTI, state);
3713b4e3
JB		 1805 if (ret < 0) {
1806 /*
1807 * If sending the wiphy data didn't fit (ENOBUFS
1808 * or EMSGSIZE returned), this SKB is still
1809 * empty (so it's not too big because another
1810 * wiphy dataset is already in the skb) and
1811 * we've not tried to adjust the dump allocation
1812 * yet ... then adjust the alloc size to be
1813 * bigger, and return 1 but with the empty skb.
1814 * This results in an empty message being RX'ed
1815 * in userspace, but that is ignored.
1816 *
1817 * We can then retry with the larger buffer.
1818 */
1819 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1820 !skb->len && !state->split &&
3713b4e3
JB		 1821 cb->min_dump_alloc < 4096) {
1822 cb->min_dump_alloc = 4096;
f12cb289 1823 state->split_start = 0;
d98cae64 1824 rtnl_unlock();
3713b4e3
JB		 1825 return 1;
1826 }
1827 idx--;
1828 break;
645e77de 1829 }
86e8cf98 1830 } while (state->split_start > 0);
3713b4e3 1831 break;
55682965 1832 }
5fe231e8 1833 rtnl_unlock();
55682965 1834
86e8cf98 1835 state->start = idx;
55682965
JB		 1836
1837 return skb->len;
1838}
1839
86e8cf98
JB		 1840static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1841{
1842 kfree((void *)cb->args[0]);
1843 return 0;
1844}
1845
55682965
JB		 1846static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1847{
1848 struct sk_buff *msg;
1b8ec87a 1849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1850 struct nl80211_dump_wiphy_state state = {};
55682965 1851
645e77de 1852 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1853 if (!msg)
4c476991 1854 return -ENOMEM;
55682965 1855
3bb20556
JB		 1856 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1857 info->snd_portid, info->snd_seq, 0,
86e8cf98 1858 &state) < 0) {
4c476991
JB		 1859 nlmsg_free(msg);
1860 return -ENOBUFS;
1861 }
55682965 1862
134e6375 1863 return genlmsg_reply(msg, info);
55682965
JB		 1864}
1865
31888487
JM		 1866static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1867 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1868 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1869 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1870 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1871 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1872};
1873
1874static int parse_txq_params(struct nlattr *tb[],
1875 struct ieee80211_txq_params *txq_params)
1876{
a3304b0a 1877 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1878 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1879 !tb[NL80211_TXQ_ATTR_AIFS])
1880 return -EINVAL;
1881
a3304b0a 1882 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1883 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1884 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1885 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1886 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1887
a3304b0a
JB		 1888 if (txq_params->ac >= NL80211_NUM_ACS)
1889 return -EINVAL;
1890
31888487
JM		 1891 return 0;
1892}
1893
f444de05
JB		 1894static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1895{
1896 /*
cc1d2806
JB		 1897 * You can only set the channel explicitly for WDS interfaces,
1898 * all others have their channel managed via their respective
1899 * "establish a connection" command (connect, join, ...)
1900 *
1901 * For AP/GO and mesh mode, the channel can be set with the
1902 * channel userspace API, but is only stored and passed to the
1903 * low-level driver when the AP starts or the mesh is joined.
1904 * This is for backward compatibility, userspace can also give
1905 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1906 *
1907 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1908 * whatever else is going on, so they have their own special
1909 * operation to set the monitor channel if possible.
f444de05
JB		 1910 */
1911 return !wdev ||
1912 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1913 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1914 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1915 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1916}
1917
683b6d3b
JB		 1918static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1919 struct genl_info *info,
1920 struct cfg80211_chan_def *chandef)
1921{
dbeca2ea 1922 u32 control_freq;
683b6d3b
JB		 1923
1924 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1925 return -EINVAL;
1926
1927 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1928
1929 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1930 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1931 chandef->center_freq1 = control_freq;
1932 chandef->center_freq2 = 0;
683b6d3b
JB		 1933
1934 /* Primary channel not allowed */
1935 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1936 return -EINVAL;
1937
3d9d1d66
JB		 1938 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1939 enum nl80211_channel_type chantype;
1940
1941 chantype = nla_get_u32(
1942 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1943
1944 switch (chantype) {
1945 case NL80211_CHAN_NO_HT:
1946 case NL80211_CHAN_HT20:
1947 case NL80211_CHAN_HT40PLUS:
1948 case NL80211_CHAN_HT40MINUS:
1949 cfg80211_chandef_create(chandef, chandef->chan,
1950 chantype);
1951 break;
1952 default:
1953 return -EINVAL;
1954 }
1955 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1956 chandef->width =
1957 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1958 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1959 chandef->center_freq1 =
1960 nla_get_u32(
1961 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1962 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1963 chandef->center_freq2 =
1964 nla_get_u32(
1965 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1966 }
1967
9f5e8f6e 1968 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1969 return -EINVAL;
1970
9f5e8f6e
JB		 1971 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1972 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1973 return -EINVAL;
1974
2f301ab2
SW		 1975 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1976 chandef->width == NL80211_CHAN_WIDTH_10) &&
1977 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1978 return -EINVAL;
1979
683b6d3b
JB		 1980 return 0;
1981}
1982
f444de05 1983static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1984 struct net_device *dev,
f444de05
JB		 1985 struct genl_info *info)
1986{
683b6d3b 1987 struct cfg80211_chan_def chandef;
f444de05 1988 int result;
e8c9bd5b 1989 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1990 struct wireless_dev *wdev = NULL;
e8c9bd5b 1991
e16821bc
JM		 1992 if (dev)
1993 wdev = dev->ieee80211_ptr;
f444de05
JB		 1994 if (!nl80211_can_set_dev_channel(wdev))
1995 return -EOPNOTSUPP;
e16821bc
JM		 1996 if (wdev)
1997 iftype = wdev->iftype;
f444de05 1998
683b6d3b
JB		 1999 result = nl80211_parse_chandef(rdev, info, &chandef);
2000 if (result)
2001 return result;
f444de05 2002
e8c9bd5b 2003 switch (iftype) {
aa430da4
JB		 2004 case NL80211_IFTYPE_AP:
2005 case NL80211_IFTYPE_P2P_GO:
174e0cd2 2006 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 2007 result = -EINVAL;
2008 break;
2009 }
e16821bc
JM		 2010 if (wdev->beacon_interval) {
2011 if (!dev || !rdev->ops->set_ap_chanwidth ||
2012 !(rdev->wiphy.features &
2013 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2014 result = -EBUSY;
2015 break;
2016 }
2017
2018 /* Only allow dynamic channel width changes */
2019 if (chandef.chan != wdev->preset_chandef.chan) {
2020 result = -EBUSY;
2021 break;
2022 }
2023 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2024 if (result)
2025 break;
2026 }
683b6d3b 2027 wdev->preset_chandef = chandef;
aa430da4
JB		 2028 result = 0;
2029 break;
cc1d2806 2030 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2031 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2032 break;
e8c9bd5b 2033 case NL80211_IFTYPE_MONITOR:
683b6d3b 2034 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2035 break;
aa430da4 2036 default:
e8c9bd5b 2037 result = -EINVAL;
f444de05 2038 }
f444de05
JB		 2039
2040 return result;
2041}
2042
2043static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2044{
4c476991
JB		 2045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2046 struct net_device *netdev = info->user_ptr[1];
f444de05 2047
e16821bc 2048 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2049}
2050
e8347eba
BJ		 2051static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2052{
43b19952
JB		 2053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2054 struct net_device *dev = info->user_ptr[1];
2055 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2056 const u8 *bssid;
e8347eba
BJ		 2057
2058 if (!info->attrs[NL80211_ATTR_MAC])
2059 return -EINVAL;
2060
43b19952
JB		 2061 if (netif_running(dev))
2062 return -EBUSY;
e8347eba 2063
43b19952
JB		 2064 if (!rdev->ops->set_wds_peer)
2065 return -EOPNOTSUPP;
e8347eba 2066
43b19952
JB		 2067 if (wdev->iftype != NL80211_IFTYPE_WDS)
2068 return -EOPNOTSUPP;
e8347eba
BJ		 2069
2070 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2071 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2072}
2073
2074
55682965
JB		 2075static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2076{
2077 struct cfg80211_registered_device *rdev;
f444de05
JB		 2078 struct net_device *netdev = NULL;
2079 struct wireless_dev *wdev;
a1e567c8 2080 int result = 0, rem_txq_params = 0;
31888487 2081 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2082 u32 changed;
2083 u8 retry_short = 0, retry_long = 0;
2084 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2085 u8 coverage_class = 0;
55682965 2086
5fe231e8
JB		 2087 ASSERT_RTNL();
2088
f444de05
JB		 2089 /*
2090 * Try to find the wiphy and netdev. Normally this
2091 * function shouldn't need the netdev, but this is
2092 * done for backward compatibility -- previously
2093 * setting the channel was done per wiphy, but now
2094 * it is per netdev. Previous userland like hostapd
2095 * also passed a netdev to set_wiphy, so that it is
2096 * possible to let that go to the right netdev!
2097 */
4bbf4d56 2098
f444de05
JB		 2099 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2100 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2101
7f2b8562 2102 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2103 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2104 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2105 else
f444de05 2106 netdev = NULL;
4bbf4d56
JB		 2107 }
2108
f444de05 2109 if (!netdev) {
878d9ec7
JB		 2110 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2111 info->attrs);
5fe231e8 2112 if (IS_ERR(rdev))
4c476991 2113 return PTR_ERR(rdev);
f444de05
JB		 2114 wdev = NULL;
2115 netdev = NULL;
2116 result = 0;
71fe96bf 2117 } else
f444de05 2118 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2119
2120 /*
2121 * end workaround code, by now the rdev is available
2122 * and locked, and wdev may or may not be NULL.
2123 */
4bbf4d56
JB		 2124
2125 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2126 result = cfg80211_dev_rename(
2127 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2128
4bbf4d56 2129 if (result)
7f2b8562 2130 return result;
31888487
JM		 2131
2132 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2133 struct ieee80211_txq_params txq_params;
2134 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2135
7f2b8562
YX		 2136 if (!rdev->ops->set_txq_params)
2137 return -EOPNOTSUPP;
31888487 2138
7f2b8562
YX		 2139 if (!netdev)
2140 return -EINVAL;
f70f01c2 2141
133a3ff2 2142 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2143 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2144 return -EINVAL;
133a3ff2 2145
7f2b8562
YX		 2146 if (!netif_running(netdev))
2147 return -ENETDOWN;
2b5f8b0b 2148
31888487
JM		 2149 nla_for_each_nested(nl_txq_params,
2150 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2151 rem_txq_params) {
ae811e21
JB		 2152 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2153 nla_data(nl_txq_params),
2154 nla_len(nl_txq_params),
2155 txq_params_policy);
2156 if (result)
2157 return result;
31888487
JM		 2158 result = parse_txq_params(tb, &txq_params);
2159 if (result)
7f2b8562 2160 return result;
31888487 2161
e35e4d28
HG		 2162 result = rdev_set_txq_params(rdev, netdev,
2163 &txq_params);
31888487 2164 if (result)
7f2b8562 2165 return result;
31888487
JM		 2166 }
2167 }
55682965 2168
72bdcf34 2169 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2170 result = __nl80211_set_channel(
2171 rdev,
2172 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2173 info);
72bdcf34 2174 if (result)
7f2b8562 2175 return result;
72bdcf34
JM		 2176 }
2177
98d2ff8b 2178 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2179 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2180 enum nl80211_tx_power_setting type;
2181 int idx, mbm = 0;
2182
c8442118
JB		 2183 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2184 txp_wdev = NULL;
2185
7f2b8562
YX		 2186 if (!rdev->ops->set_tx_power)
2187 return -EOPNOTSUPP;
98d2ff8b
JO		 2188
2189 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2190 type = nla_get_u32(info->attrs[idx]);
2191
2192 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2193 (type != NL80211_TX_POWER_AUTOMATIC))
2194 return -EINVAL;
98d2ff8b
JO		 2195
2196 if (type != NL80211_TX_POWER_AUTOMATIC) {
2197 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2198 mbm = nla_get_u32(info->attrs[idx]);
2199 }
2200
c8442118 2201 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2202 if (result)
7f2b8562 2203 return result;
98d2ff8b
JO		 2204 }
2205
afe0cbf8
BR		 2206 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2207 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2208 u32 tx_ant, rx_ant;
7f531e03
BR		 2209 if ((!rdev->wiphy.available_antennas_tx &&
2210 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2211 !rdev->ops->set_antenna)
2212 return -EOPNOTSUPP;
afe0cbf8
BR		 2213
2214 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2215 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2216
a7ffac95 2217 /* reject antenna configurations which don't match the
7f531e03
BR		 2218 * available antenna masks, except for the "all" mask */
2219 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2220 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2221 return -EINVAL;
a7ffac95 2222
7f531e03
BR		 2223 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2224 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2225
e35e4d28 2226 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2227 if (result)
7f2b8562 2228 return result;
afe0cbf8
BR		 2229 }
2230
b9a5f8ca
JM		 2231 changed = 0;
2232
2233 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2234 retry_short = nla_get_u8(
2235 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2236 if (retry_short == 0)
2237 return -EINVAL;
2238
b9a5f8ca
JM		 2239 changed |= WIPHY_PARAM_RETRY_SHORT;
2240 }
2241
2242 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2243 retry_long = nla_get_u8(
2244 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2245 if (retry_long == 0)
2246 return -EINVAL;
2247
b9a5f8ca
JM		 2248 changed |= WIPHY_PARAM_RETRY_LONG;
2249 }
2250
2251 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2252 frag_threshold = nla_get_u32(
2253 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2254 if (frag_threshold < 256)
2255 return -EINVAL;
2256
b9a5f8ca
JM		 2257 if (frag_threshold != (u32) -1) {
2258 /*
2259 * Fragments (apart from the last one) are required to
2260 * have even length. Make the fragmentation code
2261 * simpler by stripping LSB should someone try to use
2262 * odd threshold value.
2263 */
2264 frag_threshold &= ~0x1;
2265 }
2266 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2267 }
2268
2269 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2270 rts_threshold = nla_get_u32(
2271 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2272 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2273 }
2274
81077e82 2275 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2276 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2277 return -EINVAL;
2278
81077e82
LT		 2279 coverage_class = nla_get_u8(
2280 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2281 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2282 }
2283
3057dbfd
LB		 2284 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2285 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2286 return -EOPNOTSUPP;
2287
2288 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2289 }
2290
b9a5f8ca
JM		 2291 if (changed) {
2292 u8 old_retry_short, old_retry_long;
2293 u32 old_frag_threshold, old_rts_threshold;
81077e82 2294 u8 old_coverage_class;
b9a5f8ca 2295
7f2b8562
YX		 2296 if (!rdev->ops->set_wiphy_params)
2297 return -EOPNOTSUPP;
b9a5f8ca
JM		 2298
2299 old_retry_short = rdev->wiphy.retry_short;
2300 old_retry_long = rdev->wiphy.retry_long;
2301 old_frag_threshold = rdev->wiphy.frag_threshold;
2302 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2303 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2304
2305 if (changed & WIPHY_PARAM_RETRY_SHORT)
2306 rdev->wiphy.retry_short = retry_short;
2307 if (changed & WIPHY_PARAM_RETRY_LONG)
2308 rdev->wiphy.retry_long = retry_long;
2309 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2310 rdev->wiphy.frag_threshold = frag_threshold;
2311 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2312 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2313 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2314 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2315
e35e4d28 2316 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2317 if (result) {
2318 rdev->wiphy.retry_short = old_retry_short;
2319 rdev->wiphy.retry_long = old_retry_long;
2320 rdev->wiphy.frag_threshold = old_frag_threshold;
2321 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2322 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2323 }
2324 }
7f2b8562 2325 return 0;
55682965
JB		 2326}
2327
71bbc994
JB		 2328static inline u64 wdev_id(struct wireless_dev *wdev)
2329{
2330 return (u64)wdev->identifier |
f26cbf40 2331 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2332}
55682965 2333
683b6d3b 2334static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2335 const struct cfg80211_chan_def *chandef)
683b6d3b 2336{
601555cd
JB		 2337 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2338 return -EINVAL;
3d9d1d66 2339
683b6d3b
JB		 2340 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2341 chandef->chan->center_freq))
2342 return -ENOBUFS;
3d9d1d66
JB		 2343 switch (chandef->width) {
2344 case NL80211_CHAN_WIDTH_20_NOHT:
2345 case NL80211_CHAN_WIDTH_20:
2346 case NL80211_CHAN_WIDTH_40:
2347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2348 cfg80211_get_chandef_type(chandef)))
2349 return -ENOBUFS;
2350 break;
2351 default:
2352 break;
2353 }
2354 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2355 return -ENOBUFS;
2356 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2357 return -ENOBUFS;
2358 if (chandef->center_freq2 &&
2359 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2360 return -ENOBUFS;
2361 return 0;
2362}
2363
15e47304 2364static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2365 struct cfg80211_registered_device *rdev,
8f894be2 2366 struct wireless_dev *wdev, bool removal)
55682965 2367{
72fb2abc 2368 struct net_device *dev = wdev->netdev;
8f894be2 2369 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2370 void *hdr;
2371
8f894be2
TB		 2372 if (removal)
2373 cmd = NL80211_CMD_DEL_INTERFACE;
2374
2375 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2376 if (!hdr)
2377 return -1;
2378
72fb2abc
JB		 2379 if (dev &&
2380 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2381 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2382 goto nla_put_failure;
2383
2384 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2385 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2386 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2387 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2388 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2389 rdev->devlist_generation ^
2390 (cfg80211_rdev_list_generation << 2)))
2391 goto nla_put_failure;
f5ea9120 2392
5b7ccaf3 2393 if (rdev->ops->get_channel) {
683b6d3b
JB		 2394 int ret;
2395 struct cfg80211_chan_def chandef;
2396
2397 ret = rdev_get_channel(rdev, wdev, &chandef);
2398 if (ret == 0) {
2399 if (nl80211_send_chandef(msg, &chandef))
2400 goto nla_put_failure;
2401 }
d91df0e3
PF		 2402 }
2403
b84e7a05
AQ		 2404 if (wdev->ssid_len) {
2405 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2406 goto nla_put_failure;
2407 }
2408
053c095a
JB		 2409 genlmsg_end(msg, hdr);
2410 return 0;
55682965
JB		 2411
2412 nla_put_failure:
bc3ed28c
TG		 2413 genlmsg_cancel(msg, hdr);
2414 return -EMSGSIZE;
55682965
JB		 2415}
2416
2417static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2418{
2419 int wp_idx = 0;
2420 int if_idx = 0;
2421 int wp_start = cb->args[0];
2422 int if_start = cb->args[1];
f5ea9120 2423 struct cfg80211_registered_device *rdev;
55682965
JB		 2424 struct wireless_dev *wdev;
2425
5fe231e8 2426 rtnl_lock();
f5ea9120
JB		 2427 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2428 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2429 continue;
bba95fef
JB		 2430 if (wp_idx < wp_start) {
2431 wp_idx++;
55682965 2432 continue;
bba95fef 2433 }
55682965
JB		 2434 if_idx = 0;
2435
89a54e48 2436 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2437 if (if_idx < if_start) {
2438 if_idx++;
55682965 2439 continue;
bba95fef 2440 }
15e47304 2441 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2442 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2443 rdev, wdev, false) < 0) {
bba95fef
JB		 2444 goto out;
2445 }
2446 if_idx++;
55682965 2447 }
bba95fef
JB		 2448
2449 wp_idx++;
55682965 2450 }
bba95fef 2451 out:
5fe231e8 2452 rtnl_unlock();
55682965
JB		 2453
2454 cb->args[0] = wp_idx;
2455 cb->args[1] = if_idx;
2456
2457 return skb->len;
2458}
2459
2460static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2461{
2462 struct sk_buff *msg;
1b8ec87a 2463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2464 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2465
fd2120ca 2466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2467 if (!msg)
4c476991 2468 return -ENOMEM;
55682965 2469
15e47304 2470 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2471 rdev, wdev, false) < 0) {
4c476991
JB		 2472 nlmsg_free(msg);
2473 return -ENOBUFS;
2474 }
55682965 2475
134e6375 2476 return genlmsg_reply(msg, info);
55682965
JB		 2477}
2478
66f7ac50
MW		 2479static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2480 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2481 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2482 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2483 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2484 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2485 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2486};
2487
2488static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2489{
2490 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2491 int flag;
2492
2493 *mntrflags = 0;
2494
2495 if (!nla)
2496 return -EINVAL;
2497
2498 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2499 nla, mntr_flags_policy))
2500 return -EINVAL;
2501
2502 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2503 if (flags[flag])
2504 *mntrflags |= (1<<flag);
2505
2506 return 0;
2507}
2508
9bc383de 2509static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2510 struct net_device *netdev, u8 use_4addr,
2511 enum nl80211_iftype iftype)
9bc383de 2512{
ad4bb6f8 2513 if (!use_4addr) {
f350a0a8 2514 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2515 return -EBUSY;
9bc383de 2516 return 0;
ad4bb6f8 2517 }
9bc383de
JB		 2518
2519 switch (iftype) {
2520 case NL80211_IFTYPE_AP_VLAN:
2521 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2522 return 0;
2523 break;
2524 case NL80211_IFTYPE_STATION:
2525 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2526 return 0;
2527 break;
2528 default:
2529 break;
2530 }
2531
2532 return -EOPNOTSUPP;
2533}
2534
55682965
JB		 2535static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2536{
4c476991 2537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2538 struct vif_params params;
e36d56b6 2539 int err;
04a773ad 2540 enum nl80211_iftype otype, ntype;
4c476991 2541 struct net_device *dev = info->user_ptr[1];
92ffe055 2542 u32 _flags, *flags = NULL;
ac7f9cfa 2543 bool change = false;
55682965 2544
2ec600d6
LCC		 2545 memset(&params, 0, sizeof(params));
2546
04a773ad 2547 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2548
723b038d 2549 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2550 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2551 if (otype != ntype)
ac7f9cfa 2552 change = true;
4c476991
JB		 2553 if (ntype > NL80211_IFTYPE_MAX)
2554 return -EINVAL;
723b038d
JB		 2555 }
2556
92ffe055 2557 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2558 struct wireless_dev *wdev = dev->ieee80211_ptr;
2559
4c476991
JB		 2560 if (ntype != NL80211_IFTYPE_MESH_POINT)
2561 return -EINVAL;
29cbe68c
JB		 2562 if (netif_running(dev))
2563 return -EBUSY;
2564
2565 wdev_lock(wdev);
2566 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2567 IEEE80211_MAX_MESH_ID_LEN);
2568 wdev->mesh_id_up_len =
2569 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2570 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2571 wdev->mesh_id_up_len);
2572 wdev_unlock(wdev);
2ec600d6
LCC		 2573 }
2574
8b787643
FF		 2575 if (info->attrs[NL80211_ATTR_4ADDR]) {
2576 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2577 change = true;
ad4bb6f8 2578 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2579 if (err)
4c476991 2580 return err;
8b787643
FF		 2581 } else {
2582 params.use_4addr = -1;
2583 }
2584
92ffe055 2585 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2586 if (ntype != NL80211_IFTYPE_MONITOR)
2587 return -EINVAL;
92ffe055
JB		 2588 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2589 &_flags);
ac7f9cfa 2590 if (err)
4c476991 2591 return err;
ac7f9cfa
JB		 2592
2593 flags = &_flags;
2594 change = true;
92ffe055 2595 }
3b85875a 2596
18003297 2597 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2598 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2599 return -EOPNOTSUPP;
2600
ac7f9cfa 2601 if (change)
3d54d255 2602 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2603 else
2604 err = 0;
60719ffd 2605
9bc383de
JB		 2606 if (!err && params.use_4addr != -1)
2607 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2608
55682965
JB		 2609 return err;
2610}
2611
2612static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2613{
4c476991 2614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2615 struct vif_params params;
84efbb84 2616 struct wireless_dev *wdev;
8f894be2 2617 struct sk_buff *msg, *event;
55682965
JB		 2618 int err;
2619 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2620 u32 flags;
55682965 2621
78f22b6a
JB		 2622 /* to avoid failing a new interface creation due to pending removal */
2623 cfg80211_destroy_ifaces(rdev);
2624
2ec600d6
LCC		 2625 memset(&params, 0, sizeof(params));
2626
55682965
JB		 2627 if (!info->attrs[NL80211_ATTR_IFNAME])
2628 return -EINVAL;
2629
2630 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2631 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2632 if (type > NL80211_IFTYPE_MAX)
2633 return -EINVAL;
2634 }
2635
79c97e97 2636 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2637 !(rdev->wiphy.interface_modes & (1 << type)))
2638 return -EOPNOTSUPP;
55682965 2639
e8f479b1
BG		 2640 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2641 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2642 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2643 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2644 ETH_ALEN);
2645 if (!is_valid_ether_addr(params.macaddr))
2646 return -EADDRNOTAVAIL;
2647 }
2648
9bc383de 2649 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2650 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2651 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2652 if (err)
4c476991 2653 return err;
9bc383de 2654 }
8b787643 2655
66f7ac50
MW		 2656 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2657 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2658 &flags);
e057d3c3 2659
18003297 2660 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2661 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2662 return -EOPNOTSUPP;
2663
a18c7192
JB		 2664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2665 if (!msg)
2666 return -ENOMEM;
2667
e35e4d28
HG		 2668 wdev = rdev_add_virtual_intf(rdev,
2669 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2670 NET_NAME_USER, type, err ? NULL : &flags,
2671 &params);
d687cbb7
RM		 2672 if (WARN_ON(!wdev)) {
2673 nlmsg_free(msg);
2674 return -EPROTO;
2675 } else if (IS_ERR(wdev)) {
1c90f9d4 2676 nlmsg_free(msg);
84efbb84 2677 return PTR_ERR(wdev);
1c90f9d4 2678 }
2ec600d6 2679
18e5ca65 2680 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2681 wdev->owner_nlportid = info->snd_portid;
2682
98104fde
JB		 2683 switch (type) {
2684 case NL80211_IFTYPE_MESH_POINT:
2685 if (!info->attrs[NL80211_ATTR_MESH_ID])
2686 break;
29cbe68c
JB		 2687 wdev_lock(wdev);
2688 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2689 IEEE80211_MAX_MESH_ID_LEN);
2690 wdev->mesh_id_up_len =
2691 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2692 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2693 wdev->mesh_id_up_len);
2694 wdev_unlock(wdev);
98104fde
JB		 2695 break;
2696 case NL80211_IFTYPE_P2P_DEVICE:
2697 /*
2698 * P2P Device doesn't have a netdev, so doesn't go
2699 * through the netdev notifier and must be added here
2700 */
2701 mutex_init(&wdev->mtx);
2702 INIT_LIST_HEAD(&wdev->event_list);
2703 spin_lock_init(&wdev->event_lock);
2704 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2705 spin_lock_init(&wdev->mgmt_registrations_lock);
2706
98104fde
JB		 2707 wdev->identifier = ++rdev->wdev_id;
2708 list_add_rcu(&wdev->list, &rdev->wdev_list);
2709 rdev->devlist_generation++;
98104fde
JB		 2710 break;
2711 default:
2712 break;
29cbe68c
JB		 2713 }
2714
15e47304 2715 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2716 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2717 nlmsg_free(msg);
2718 return -ENOBUFS;
2719 }
2720
8f894be2
TB		 2721 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2722 if (event) {
2723 if (nl80211_send_iface(event, 0, 0, 0,
2724 rdev, wdev, false) < 0) {
2725 nlmsg_free(event);
2726 goto out;
2727 }
2728
2729 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2730 event, 0, NL80211_MCGRP_CONFIG,
2731 GFP_KERNEL);
2732 }
2733
2734out:
1c90f9d4 2735 return genlmsg_reply(msg, info);
55682965
JB		 2736}
2737
2738static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2739{
4c476991 2740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2741 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2742 struct sk_buff *msg;
2743 int status;
55682965 2744
4c476991
JB		 2745 if (!rdev->ops->del_virtual_intf)
2746 return -EOPNOTSUPP;
55682965 2747
8f894be2
TB		 2748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2749 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2750 nlmsg_free(msg);
2751 msg = NULL;
2752 }
2753
84efbb84
JB		 2754 /*
2755 * If we remove a wireless device without a netdev then clear
2756 * user_ptr[1] so that nl80211_post_doit won't dereference it
2757 * to check if it needs to do dev_put(). Otherwise it crashes
2758 * since the wdev has been freed, unlike with a netdev where
2759 * we need the dev_put() for the netdev to really be freed.
2760 */
2761 if (!wdev->netdev)
2762 info->user_ptr[1] = NULL;
2763
8f894be2
TB		 2764 status = rdev_del_virtual_intf(rdev, wdev);
2765 if (status >= 0 && msg)
2766 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2767 msg, 0, NL80211_MCGRP_CONFIG,
2768 GFP_KERNEL);
2769 else
2770 nlmsg_free(msg);
2771
2772 return status;
55682965
JB		 2773}
2774
1d9d9213
SW		 2775static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2776{
2777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2778 struct net_device *dev = info->user_ptr[1];
2779 u16 noack_map;
2780
2781 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2782 return -EINVAL;
2783
2784 if (!rdev->ops->set_noack_map)
2785 return -EOPNOTSUPP;
2786
2787 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2788
e35e4d28 2789 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2790}
2791
41ade00f
JB		 2792struct get_key_cookie {
2793 struct sk_buff *msg;
2794 int error;
b9454e83 2795 int idx;
41ade00f
JB		 2796};
2797
2798static void get_key_callback(void *c, struct key_params *params)
2799{
b9454e83 2800 struct nlattr *key;
41ade00f
JB		 2801 struct get_key_cookie *cookie = c;
2802
9360ffd1
DM		 2803 if ((params->key &&
2804 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2805 params->key_len, params->key)) ||
2806 (params->seq &&
2807 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2808 params->seq_len, params->seq)) ||
2809 (params->cipher &&
2810 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2811 params->cipher)))
2812 goto nla_put_failure;
41ade00f 2813
b9454e83
JB		 2814 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2815 if (!key)
2816 goto nla_put_failure;
2817
9360ffd1
DM		 2818 if ((params->key &&
2819 nla_put(cookie->msg, NL80211_KEY_DATA,
2820 params->key_len, params->key)) ||
2821 (params->seq &&
2822 nla_put(cookie->msg, NL80211_KEY_SEQ,
2823 params->seq_len, params->seq)) ||
2824 (params->cipher &&
2825 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2826 params->cipher)))
2827 goto nla_put_failure;
b9454e83 2828
9360ffd1
DM		 2829 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2830 goto nla_put_failure;
b9454e83
JB		 2831
2832 nla_nest_end(cookie->msg, key);
2833
41ade00f
JB		 2834 return;
2835 nla_put_failure:
2836 cookie->error = 1;
2837}
2838
2839static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2840{
4c476991 2841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2842 int err;
4c476991 2843 struct net_device *dev = info->user_ptr[1];
41ade00f 2844 u8 key_idx = 0;
e31b8213
JB		 2845 const u8 *mac_addr = NULL;
2846 bool pairwise;
41ade00f
JB		 2847 struct get_key_cookie cookie = {
2848 .error = 0,
2849 };
2850 void *hdr;
2851 struct sk_buff *msg;
2852
2853 if (info->attrs[NL80211_ATTR_KEY_IDX])
2854 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2855
3cfcf6ac 2856 if (key_idx > 5)
41ade00f
JB		 2857 return -EINVAL;
2858
2859 if (info->attrs[NL80211_ATTR_MAC])
2860 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2861
e31b8213
JB		 2862 pairwise = !!mac_addr;
2863 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2864 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2865 if (kt >= NUM_NL80211_KEYTYPES)
2866 return -EINVAL;
2867 if (kt != NL80211_KEYTYPE_GROUP &&
2868 kt != NL80211_KEYTYPE_PAIRWISE)
2869 return -EINVAL;
2870 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2871 }
2872
4c476991
JB		 2873 if (!rdev->ops->get_key)
2874 return -EOPNOTSUPP;
41ade00f 2875
0fa7b391
JB		 2876 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2877 return -ENOENT;
2878
fd2120ca 2879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2880 if (!msg)
2881 return -ENOMEM;
41ade00f 2882
15e47304 2883 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2884 NL80211_CMD_NEW_KEY);
cb35fba3 2885 if (!hdr)
9fe271af 2886 goto nla_put_failure;
41ade00f
JB		 2887
2888 cookie.msg = msg;
b9454e83 2889 cookie.idx = key_idx;
41ade00f 2890
9360ffd1
DM		 2891 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2892 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2893 goto nla_put_failure;
2894 if (mac_addr &&
2895 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2896 goto nla_put_failure;
41ade00f 2897
e35e4d28
HG		 2898 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2899 get_key_callback);
41ade00f
JB		 2900
2901 if (err)
6c95e2a2 2902 goto free_msg;
41ade00f
JB		 2903
2904 if (cookie.error)
2905 goto nla_put_failure;
2906
2907 genlmsg_end(msg, hdr);
4c476991 2908 return genlmsg_reply(msg, info);
41ade00f
JB		 2909
2910 nla_put_failure:
2911 err = -ENOBUFS;
6c95e2a2 2912 free_msg:
41ade00f 2913 nlmsg_free(msg);
41ade00f
JB		 2914 return err;
2915}
2916
2917static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2918{
4c476991 2919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2920 struct key_parse key;
41ade00f 2921 int err;
4c476991 2922 struct net_device *dev = info->user_ptr[1];
41ade00f 2923
b9454e83
JB		 2924 err = nl80211_parse_key(info, &key);
2925 if (err)
2926 return err;
41ade00f 2927
b9454e83 2928 if (key.idx < 0)
41ade00f
JB		 2929 return -EINVAL;
2930
b9454e83
JB		 2931 /* only support setting default key */
2932 if (!key.def && !key.defmgmt)
41ade00f
JB		 2933 return -EINVAL;
2934
dbd2fd65 2935 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2936
dbd2fd65
JB		 2937 if (key.def) {
2938 if (!rdev->ops->set_default_key) {
2939 err = -EOPNOTSUPP;
2940 goto out;
2941 }
41ade00f 2942
dbd2fd65
JB		 2943 err = nl80211_key_allowed(dev->ieee80211_ptr);
2944 if (err)
2945 goto out;
2946
e35e4d28 2947 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2948 key.def_uni, key.def_multi);
2949
2950 if (err)
2951 goto out;
fffd0934 2952
3d23e349 2953#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2954 dev->ieee80211_ptr->wext.default_key = key.idx;
2955#endif
2956 } else {
2957 if (key.def_uni || !key.def_multi) {
2958 err = -EINVAL;
2959 goto out;
2960 }
2961
2962 if (!rdev->ops->set_default_mgmt_key) {
2963 err = -EOPNOTSUPP;
2964 goto out;
2965 }
2966
2967 err = nl80211_key_allowed(dev->ieee80211_ptr);
2968 if (err)
2969 goto out;
2970
e35e4d28 2971 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2972 if (err)
2973 goto out;
2974
2975#ifdef CONFIG_CFG80211_WEXT
2976 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2977#endif
dbd2fd65
JB		 2978 }
2979
2980 out:
fffd0934 2981 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2982
41ade00f
JB		 2983 return err;
2984}
2985
2986static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2987{
4c476991 2988 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2989 int err;
4c476991 2990 struct net_device *dev = info->user_ptr[1];
b9454e83 2991 struct key_parse key;
e31b8213 2992 const u8 *mac_addr = NULL;
41ade00f 2993
b9454e83
JB		 2994 err = nl80211_parse_key(info, &key);
2995 if (err)
2996 return err;
41ade00f 2997
b9454e83 2998 if (!key.p.key)
41ade00f
JB		 2999 return -EINVAL;
3000
41ade00f
JB		 3001 if (info->attrs[NL80211_ATTR_MAC])
3002 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3003
e31b8213
JB		 3004 if (key.type == -1) {
3005 if (mac_addr)
3006 key.type = NL80211_KEYTYPE_PAIRWISE;
3007 else
3008 key.type = NL80211_KEYTYPE_GROUP;
3009 }
3010
3011 /* for now */
3012 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3013 key.type != NL80211_KEYTYPE_GROUP)
3014 return -EINVAL;
3015
4c476991
JB		 3016 if (!rdev->ops->add_key)
3017 return -EOPNOTSUPP;
25e47c18 3018
e31b8213
JB		 3019 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3020 key.type == NL80211_KEYTYPE_PAIRWISE,
3021 mac_addr))
4c476991 3022 return -EINVAL;
41ade00f 3023
fffd0934
JB		 3024 wdev_lock(dev->ieee80211_ptr);
3025 err = nl80211_key_allowed(dev->ieee80211_ptr);
3026 if (!err)
e35e4d28
HG		 3027 err = rdev_add_key(rdev, dev, key.idx,
3028 key.type == NL80211_KEYTYPE_PAIRWISE,
3029 mac_addr, &key.p);
fffd0934 3030 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3031
41ade00f
JB		 3032 return err;
3033}
3034
3035static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3036{
4c476991 3037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3038 int err;
4c476991 3039 struct net_device *dev = info->user_ptr[1];
41ade00f 3040 u8 *mac_addr = NULL;
b9454e83 3041 struct key_parse key;
41ade00f 3042
b9454e83
JB		 3043 err = nl80211_parse_key(info, &key);
3044 if (err)
3045 return err;
41ade00f
JB		 3046
3047 if (info->attrs[NL80211_ATTR_MAC])
3048 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3049
e31b8213
JB		 3050 if (key.type == -1) {
3051 if (mac_addr)
3052 key.type = NL80211_KEYTYPE_PAIRWISE;
3053 else
3054 key.type = NL80211_KEYTYPE_GROUP;
3055 }
3056
3057 /* for now */
3058 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3059 key.type != NL80211_KEYTYPE_GROUP)
3060 return -EINVAL;
3061
4c476991
JB		 3062 if (!rdev->ops->del_key)
3063 return -EOPNOTSUPP;
41ade00f 3064
fffd0934
JB		 3065 wdev_lock(dev->ieee80211_ptr);
3066 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3067
0fa7b391 3068 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3069 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3070 err = -ENOENT;
3071
fffd0934 3072 if (!err)
e35e4d28
HG		 3073 err = rdev_del_key(rdev, dev, key.idx,
3074 key.type == NL80211_KEYTYPE_PAIRWISE,
3075 mac_addr);
41ade00f 3076
3d23e349 3077#ifdef CONFIG_CFG80211_WEXT
08645126 3078 if (!err) {
b9454e83 3079 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3080 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3081 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3082 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3083 }
3084#endif
fffd0934 3085 wdev_unlock(dev->ieee80211_ptr);
08645126 3086
41ade00f
JB		 3087 return err;
3088}
3089
77765eaf
VT		 3090/* This function returns an error or the number of nested attributes */
3091static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3092{
3093 struct nlattr *attr;
3094 int n_entries = 0, tmp;
3095
3096 nla_for_each_nested(attr, nl_attr, tmp) {
3097 if (nla_len(attr) != ETH_ALEN)
3098 return -EINVAL;
3099
3100 n_entries++;
3101 }
3102
3103 return n_entries;
3104}
3105
3106/*
3107 * This function parses ACL information and allocates memory for ACL data.
3108 * On successful return, the calling function is responsible to free the
3109 * ACL buffer returned by this function.
3110 */
3111static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3112 struct genl_info *info)
3113{
3114 enum nl80211_acl_policy acl_policy;
3115 struct nlattr *attr;
3116 struct cfg80211_acl_data *acl;
3117 int i = 0, n_entries, tmp;
3118
3119 if (!wiphy->max_acl_mac_addrs)
3120 return ERR_PTR(-EOPNOTSUPP);
3121
3122 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3123 return ERR_PTR(-EINVAL);
3124
3125 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3126 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3127 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3128 return ERR_PTR(-EINVAL);
3129
3130 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3131 return ERR_PTR(-EINVAL);
3132
3133 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3134 if (n_entries < 0)
3135 return ERR_PTR(n_entries);
3136
3137 if (n_entries > wiphy->max_acl_mac_addrs)
3138 return ERR_PTR(-ENOTSUPP);
3139
3140 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3141 GFP_KERNEL);
3142 if (!acl)
3143 return ERR_PTR(-ENOMEM);
3144
3145 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3146 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3147 i++;
3148 }
3149
3150 acl->n_acl_entries = n_entries;
3151 acl->acl_policy = acl_policy;
3152
3153 return acl;
3154}
3155
3156static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3157{
3158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3159 struct net_device *dev = info->user_ptr[1];
3160 struct cfg80211_acl_data *acl;
3161 int err;
3162
3163 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3164 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3165 return -EOPNOTSUPP;
3166
3167 if (!dev->ieee80211_ptr->beacon_interval)
3168 return -EINVAL;
3169
3170 acl = parse_acl_data(&rdev->wiphy, info);
3171 if (IS_ERR(acl))
3172 return PTR_ERR(acl);
3173
3174 err = rdev_set_mac_acl(rdev, dev, acl);
3175
3176 kfree(acl);
3177
3178 return err;
3179}
3180
a1193be8 3181static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3182 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3183{
8860020e 3184 bool haveinfo = false;
ed1b6cc7 3185
a1193be8
SW		 3186 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3187 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3188 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3189 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3190 return -EINVAL;
3191
8860020e 3192 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3193
a1193be8
SW		 3194 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3195 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3196 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3197 if (!bcn->head_len)
3198 return -EINVAL;
3199 haveinfo = true;
ed1b6cc7
JB		 3200 }
3201
a1193be8
SW		 3202 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3203 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3204 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3205 haveinfo = true;
ed1b6cc7
JB		 3206 }
3207
4c476991
JB		 3208 if (!haveinfo)
3209 return -EINVAL;
3b85875a 3210
a1193be8
SW		 3211 if (attrs[NL80211_ATTR_IE]) {
3212 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3213 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3214 }
3215
a1193be8 3216 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3217 bcn->proberesp_ies =
a1193be8 3218 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3219 bcn->proberesp_ies_len =
a1193be8 3220 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3221 }
3222
a1193be8 3223 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3224 bcn->assocresp_ies =
a1193be8 3225 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3226 bcn->assocresp_ies_len =
a1193be8 3227 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3228 }
3229
a1193be8
SW		 3230 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3231 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3232 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3233 }
3234
8860020e
JB		 3235 return 0;
3236}
3237
46c1dd0c
FF		 3238static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3239 struct cfg80211_ap_settings *params)
3240{
3241 struct wireless_dev *wdev;
3242 bool ret = false;
3243
89a54e48 3244 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3245 if (wdev->iftype != NL80211_IFTYPE_AP &&
3246 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3247 continue;
3248
683b6d3b 3249 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3250 continue;
3251
683b6d3b 3252 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3253 ret = true;
3254 break;
3255 }
3256
46c1dd0c
FF		 3257 return ret;
3258}
3259
e39e5b5e
JM		 3260static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3261 enum nl80211_auth_type auth_type,
3262 enum nl80211_commands cmd)
3263{
3264 if (auth_type > NL80211_AUTHTYPE_MAX)
3265 return false;
3266
3267 switch (cmd) {
3268 case NL80211_CMD_AUTHENTICATE:
3269 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3270 auth_type == NL80211_AUTHTYPE_SAE)
3271 return false;
3272 return true;
3273 case NL80211_CMD_CONNECT:
3274 case NL80211_CMD_START_AP:
3275 /* SAE not supported yet */
3276 if (auth_type == NL80211_AUTHTYPE_SAE)
3277 return false;
3278 return true;
3279 default:
3280 return false;
3281 }
3282}
3283
8860020e
JB		 3284static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3285{
3286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3287 struct net_device *dev = info->user_ptr[1];
3288 struct wireless_dev *wdev = dev->ieee80211_ptr;
3289 struct cfg80211_ap_settings params;
3290 int err;
3291
3292 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3293 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3294 return -EOPNOTSUPP;
3295
3296 if (!rdev->ops->start_ap)
3297 return -EOPNOTSUPP;
3298
3299 if (wdev->beacon_interval)
3300 return -EALREADY;
3301
3302 memset(&params, 0, sizeof(params));
3303
3304 /* these are required for START_AP */
3305 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3306 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3307 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3308 return -EINVAL;
3309
a1193be8 3310 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3311 if (err)
3312 return err;
3313
3314 params.beacon_interval =
3315 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3316 params.dtim_period =
3317 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3318
3319 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3320 if (err)
3321 return err;
3322
3323 /*
3324 * In theory, some of these attributes should be required here
3325 * but since they were not used when the command was originally
3326 * added, keep them optional for old user space programs to let
3327 * them continue to work with drivers that do not need the
3328 * additional information -- drivers must check!
3329 */
3330 if (info->attrs[NL80211_ATTR_SSID]) {
3331 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3332 params.ssid_len =
3333 nla_len(info->attrs[NL80211_ATTR_SSID]);
3334 if (params.ssid_len == 0 ||
3335 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3336 return -EINVAL;
3337 }
3338
3339 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3340 params.hidden_ssid = nla_get_u32(
3341 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3342 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3343 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3344 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3345 return -EINVAL;
3346 }
3347
3348 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3349
3350 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3351 params.auth_type = nla_get_u32(
3352 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3353 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3354 NL80211_CMD_START_AP))
8860020e
JB		 3355 return -EINVAL;
3356 } else
3357 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3358
3359 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3360 NL80211_MAX_NR_CIPHER_SUITES);
3361 if (err)
3362 return err;
3363
1b658f11
VT		 3364 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3365 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3366 return -EOPNOTSUPP;
3367 params.inactivity_timeout = nla_get_u16(
3368 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3369 }
3370
53cabad7
JB		 3371 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3373 return -EINVAL;
3374 params.p2p_ctwindow =
3375 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3376 if (params.p2p_ctwindow > 127)
3377 return -EINVAL;
3378 if (params.p2p_ctwindow != 0 &&
3379 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3380 return -EINVAL;
3381 }
3382
3383 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3384 u8 tmp;
3385
3386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3387 return -EINVAL;
3388 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3389 if (tmp > 1)
3390 return -EINVAL;
3391 params.p2p_opp_ps = tmp;
3392 if (params.p2p_opp_ps != 0 &&
3393 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3394 return -EINVAL;
3395 }
3396
aa430da4 3397 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3398 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3399 if (err)
3400 return err;
3401 } else if (wdev->preset_chandef.chan) {
3402 params.chandef = wdev->preset_chandef;
46c1dd0c 3403 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3404 return -EINVAL;
3405
174e0cd2
IP		 3406 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3407 wdev->iftype))
aa430da4
JB		 3408 return -EINVAL;
3409
77765eaf
VT		 3410 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3411 params.acl = parse_acl_data(&rdev->wiphy, info);
3412 if (IS_ERR(params.acl))
3413 return PTR_ERR(params.acl);
3414 }
3415
18998c38
EP		 3416 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3417 params.smps_mode =
3418 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3419 switch (params.smps_mode) {
3420 case NL80211_SMPS_OFF:
3421 break;
3422 case NL80211_SMPS_STATIC:
3423 if (!(rdev->wiphy.features &
3424 NL80211_FEATURE_STATIC_SMPS))
3425 return -EINVAL;
3426 break;
3427 case NL80211_SMPS_DYNAMIC:
3428 if (!(rdev->wiphy.features &
3429 NL80211_FEATURE_DYNAMIC_SMPS))
3430 return -EINVAL;
3431 break;
3432 default:
3433 return -EINVAL;
3434 }
3435 } else {
3436 params.smps_mode = NL80211_SMPS_OFF;
3437 }
3438
c56589ed 3439 wdev_lock(wdev);
e35e4d28 3440 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3441 if (!err) {
683b6d3b 3442 wdev->preset_chandef = params.chandef;
8860020e 3443 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3444 wdev->chandef = params.chandef;
06e191e2
AQ		 3445 wdev->ssid_len = params.ssid_len;
3446 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3447 }
c56589ed 3448 wdev_unlock(wdev);
77765eaf
VT		 3449
3450 kfree(params.acl);
3451
56d1893d 3452 return err;
ed1b6cc7
JB		 3453}
3454
8860020e
JB		 3455static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3456{
3457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3458 struct net_device *dev = info->user_ptr[1];
3459 struct wireless_dev *wdev = dev->ieee80211_ptr;
3460 struct cfg80211_beacon_data params;
3461 int err;
3462
3463 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3464 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3465 return -EOPNOTSUPP;
3466
3467 if (!rdev->ops->change_beacon)
3468 return -EOPNOTSUPP;
3469
3470 if (!wdev->beacon_interval)
3471 return -EINVAL;
3472
a1193be8 3473 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3474 if (err)
3475 return err;
3476
c56589ed
SW		 3477 wdev_lock(wdev);
3478 err = rdev_change_beacon(rdev, dev, &params);
3479 wdev_unlock(wdev);
3480
3481 return err;
8860020e
JB		 3482}
3483
3484static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3485{
4c476991
JB		 3486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3487 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3488
7c8d5e03 3489 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3490}
3491
5727ef1b
JB		 3492static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3493 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3494 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3495 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3496 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3497 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3498 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3499};
3500
eccb8e8f 3501static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3502 enum nl80211_iftype iftype,
eccb8e8f 3503 struct station_parameters *params)
5727ef1b
JB		 3504{
3505 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3506 struct nlattr *nla;
5727ef1b
JB		 3507 int flag;
3508
eccb8e8f
JB		 3509 /*
3510 * Try parsing the new attribute first so userspace
3511 * can specify both for older kernels.
3512 */
3513 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3514 if (nla) {
3515 struct nl80211_sta_flag_update *sta_flags;
3516
3517 sta_flags = nla_data(nla);
3518 params->sta_flags_mask = sta_flags->mask;
3519 params->sta_flags_set = sta_flags->set;
77ee7c89 3520 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3521 if ((params->sta_flags_mask |
3522 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3523 return -EINVAL;
3524 return 0;
3525 }
3526
3527 /* if present, parse the old attribute */
5727ef1b 3528
eccb8e8f 3529 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3530 if (!nla)
3531 return 0;
3532
3533 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3534 nla, sta_flags_policy))
3535 return -EINVAL;
3536
bdd3ae3d
JB		 3537 /*
3538 * Only allow certain flags for interface types so that
3539 * other attributes are silently ignored. Remember that
3540 * this is backward compatibility code with old userspace
3541 * and shouldn't be hit in other cases anyway.
3542 */
3543 switch (iftype) {
3544 case NL80211_IFTYPE_AP:
3545 case NL80211_IFTYPE_AP_VLAN:
3546 case NL80211_IFTYPE_P2P_GO:
3547 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3548 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3549 BIT(NL80211_STA_FLAG_WME) |
3550 BIT(NL80211_STA_FLAG_MFP);
3551 break;
3552 case NL80211_IFTYPE_P2P_CLIENT:
3553 case NL80211_IFTYPE_STATION:
3554 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3555 BIT(NL80211_STA_FLAG_TDLS_PEER);
3556 break;
3557 case NL80211_IFTYPE_MESH_POINT:
3558 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3559 BIT(NL80211_STA_FLAG_MFP) |
3560 BIT(NL80211_STA_FLAG_AUTHORIZED);
3561 default:
3562 return -EINVAL;
3563 }
5727ef1b 3564
3383b5a6
JB		 3565 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3566 if (flags[flag]) {
eccb8e8f 3567 params->sta_flags_set |= (1<<flag);
5727ef1b 3568
3383b5a6
JB		 3569 /* no longer support new API additions in old API */
3570 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3571 return -EINVAL;
3572 }
3573 }
3574
5727ef1b
JB		 3575 return 0;
3576}
3577
c8dcfd8a
FF		 3578static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3579 int attr)
3580{
3581 struct nlattr *rate;
8eb41c8d
VK		 3582 u32 bitrate;
3583 u16 bitrate_compat;
b51f3bee 3584 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3585
3586 rate = nla_nest_start(msg, attr);
3587 if (!rate)
db9c64cf 3588 return false;
c8dcfd8a
FF		 3589
3590 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3591 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3592 /* report 16-bit bitrate only if we can */
3593 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3594 if (bitrate > 0 &&
3595 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3596 return false;
3597 if (bitrate_compat > 0 &&
3598 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3599 return false;
3600
b51f3bee
JB		 3601 switch (info->bw) {
3602 case RATE_INFO_BW_5:
3603 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3604 break;
3605 case RATE_INFO_BW_10:
3606 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3607 break;
3608 default:
3609 WARN_ON(1);
3610 /* fall through */
3611 case RATE_INFO_BW_20:
3612 rate_flg = 0;
3613 break;
3614 case RATE_INFO_BW_40:
3615 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3616 break;
3617 case RATE_INFO_BW_80:
3618 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3619 break;
3620 case RATE_INFO_BW_160:
3621 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3622 break;
3623 }
3624
3625 if (rate_flg && nla_put_flag(msg, rate_flg))
3626 return false;
3627
db9c64cf
JB		 3628 if (info->flags & RATE_INFO_FLAGS_MCS) {
3629 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3630 return false;
db9c64cf
JB		 3631 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3632 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3633 return false;
3634 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3635 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3636 return false;
3637 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3638 return false;
db9c64cf
JB		 3639 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3640 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3641 return false;
3642 }
c8dcfd8a
FF		 3643
3644 nla_nest_end(msg, rate);
3645 return true;
c8dcfd8a
FF		 3646}
3647
119363c7
FF		 3648static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3649 int id)
3650{
3651 void *attr;
3652 int i = 0;
3653
3654 if (!mask)
3655 return true;
3656
3657 attr = nla_nest_start(msg, id);
3658 if (!attr)
3659 return false;
3660
3661 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3662 if (!(mask & BIT(i)))
3663 continue;
3664
3665 if (nla_put_u8(msg, i, signal[i]))
3666 return false;
3667 }
3668
3669 nla_nest_end(msg, attr);
3670
3671 return true;
3672}
3673
cf5ead82
JB		 3674static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3675 u32 seq, int flags,
66266b3a
JL		 3676 struct cfg80211_registered_device *rdev,
3677 struct net_device *dev,
98b62183 3678 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3679{
3680 void *hdr;
f4263c98 3681 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3682
cf5ead82 3683 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3684 if (!hdr)
3685 return -1;
3686
9360ffd1
DM		 3687 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3688 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3689 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3690 goto nla_put_failure;
f5ea9120 3691
2ec600d6
LCC		 3692 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3693 if (!sinfoattr)
fd5b74dc 3694 goto nla_put_failure;
319090bf
JB		 3695
3696#define PUT_SINFO(attr, memb, type) do { \
3697 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3698 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3699 sinfo->memb)) \
3700 goto nla_put_failure; \
3701 } while (0)
3702
3703 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3704 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3705
3706 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3707 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3708 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3709 (u32)sinfo->rx_bytes))
9360ffd1 3710 goto nla_put_failure;
319090bf
JB		 3711
3712 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3713 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3714 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3715 (u32)sinfo->tx_bytes))
3716 goto nla_put_failure;
319090bf
JB		 3717
3718 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3719 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3720 PUT_SINFO(LLID, llid, u16);
3721 PUT_SINFO(PLID, plid, u16);
3722 PUT_SINFO(PLINK_STATE, plink_state, u8);
3723
66266b3a
JL		 3724 switch (rdev->wiphy.signal_type) {
3725 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3726 PUT_SINFO(SIGNAL, signal, u8);
3727 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3728 break;
3729 default:
3730 break;
3731 }
319090bf 3732 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3733 if (!nl80211_put_signal(msg, sinfo->chains,
3734 sinfo->chain_signal,
3735 NL80211_STA_INFO_CHAIN_SIGNAL))
3736 goto nla_put_failure;
3737 }
319090bf 3738 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3739 if (!nl80211_put_signal(msg, sinfo->chains,
3740 sinfo->chain_signal_avg,
3741 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3742 goto nla_put_failure;
3743 }
319090bf 3744 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3745 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3746 NL80211_STA_INFO_TX_BITRATE))
3747 goto nla_put_failure;
3748 }
319090bf 3749 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3750 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3751 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3752 goto nla_put_failure;
420e7fab 3753 }
319090bf
JB		 3754
3755 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3756 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3757 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3758 PUT_SINFO(TX_FAILED, tx_failed, u32);
3759 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3760 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3761 PUT_SINFO(LOCAL_PM, local_pm, u32);
3762 PUT_SINFO(PEER_PM, peer_pm, u32);
3763 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3764
3765 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3766 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3767 if (!bss_param)
3768 goto nla_put_failure;
3769
9360ffd1
DM		 3770 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3771 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3772 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3773 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3774 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3775 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3776 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3777 sinfo->bss_param.dtim_period) ||
3778 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3779 sinfo->bss_param.beacon_interval))
3780 goto nla_put_failure;
f4263c98
PS		 3781
3782 nla_nest_end(msg, bss_param);
3783 }
319090bf 3784 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3785 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3786 sizeof(struct nl80211_sta_flag_update),
3787 &sinfo->sta_flags))
3788 goto nla_put_failure;
319090bf
JB		 3789
3790 PUT_SINFO(T_OFFSET, t_offset, u64);
3791 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3792 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3793 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3794
3795#undef PUT_SINFO
6de39808
JB		 3796
3797 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3798 struct nlattr *tidsattr;
3799 int tid;
3800
3801 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3802 if (!tidsattr)
3803 goto nla_put_failure;
3804
3805 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3806 struct cfg80211_tid_stats *tidstats;
3807 struct nlattr *tidattr;
3808
3809 tidstats = &sinfo->pertid[tid];
3810
3811 if (!tidstats->filled)
3812 continue;
3813
3814 tidattr = nla_nest_start(msg, tid + 1);
3815 if (!tidattr)
3816 goto nla_put_failure;
3817
3818#define PUT_TIDVAL(attr, memb, type) do { \
3819 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3820 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3821 tidstats->memb)) \
3822 goto nla_put_failure; \
3823 } while (0)
3824
3825 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3826 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3827 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3828 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3829
3830#undef PUT_TIDVAL
3831 nla_nest_end(msg, tidattr);
3832 }
3833
3834 nla_nest_end(msg, tidsattr);
3835 }
3836
2ec600d6 3837 nla_nest_end(msg, sinfoattr);
fd5b74dc 3838
319090bf 3839 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3840 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3841 sinfo->assoc_req_ies))
3842 goto nla_put_failure;
50d3dfb7 3843
053c095a
JB		 3844 genlmsg_end(msg, hdr);
3845 return 0;
fd5b74dc
JB		 3846
3847 nla_put_failure:
bc3ed28c
TG		 3848 genlmsg_cancel(msg, hdr);
3849 return -EMSGSIZE;
fd5b74dc
JB		 3850}
3851
2ec600d6 3852static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3853 struct netlink_callback *cb)
2ec600d6 3854{
2ec600d6 3855 struct station_info sinfo;
1b8ec87a 3856 struct cfg80211_registered_device *rdev;
97990a06 3857 struct wireless_dev *wdev;
2ec600d6 3858 u8 mac_addr[ETH_ALEN];
97990a06 3859 int sta_idx = cb->args[2];
2ec600d6 3860 int err;
2ec600d6 3861
1b8ec87a 3862 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3863 if (err)
3864 return err;
bba95fef 3865
97990a06
JB		 3866 if (!wdev->netdev) {
3867 err = -EINVAL;
3868 goto out_err;
3869 }
3870
1b8ec87a 3871 if (!rdev->ops->dump_station) {
eec60b03 3872 err = -EOPNOTSUPP;
bba95fef
JB		 3873 goto out_err;
3874 }
3875
bba95fef 3876 while (1) {
f612cedf 3877 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3878 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3879 mac_addr, &sinfo);
bba95fef
JB		 3880 if (err == -ENOENT)
3881 break;
3882 if (err)
3b85875a 3883 goto out_err;
bba95fef 3884
cf5ead82 3885 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3886 NETLINK_CB(cb->skb).portid,
bba95fef 3887 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3888 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3889 &sinfo) < 0)
3890 goto out;
3891
3892 sta_idx++;
3893 }
3894
3895
3896 out:
97990a06 3897 cb->args[2] = sta_idx;
bba95fef 3898 err = skb->len;
bba95fef 3899 out_err:
1b8ec87a 3900 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3901
3902 return err;
2ec600d6 3903}
fd5b74dc 3904
5727ef1b
JB		 3905static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3906{
4c476991
JB		 3907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3908 struct net_device *dev = info->user_ptr[1];
2ec600d6 3909 struct station_info sinfo;
fd5b74dc
JB		 3910 struct sk_buff *msg;
3911 u8 *mac_addr = NULL;
4c476991 3912 int err;
fd5b74dc 3913
2ec600d6 3914 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3915
3916 if (!info->attrs[NL80211_ATTR_MAC])
3917 return -EINVAL;
3918
3919 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3920
4c476991
JB		 3921 if (!rdev->ops->get_station)
3922 return -EOPNOTSUPP;
3b85875a 3923
e35e4d28 3924 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3925 if (err)
4c476991 3926 return err;
2ec600d6 3927
fd2120ca 3928 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3929 if (!msg)
4c476991 3930 return -ENOMEM;
fd5b74dc 3931
cf5ead82
JB		 3932 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3933 info->snd_portid, info->snd_seq, 0,
66266b3a 3934 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3935 nlmsg_free(msg);
3936 return -ENOBUFS;
3937 }
3b85875a 3938
4c476991 3939 return genlmsg_reply(msg, info);
5727ef1b
JB		 3940}
3941
77ee7c89
JB		 3942int cfg80211_check_station_change(struct wiphy *wiphy,
3943 struct station_parameters *params,
3944 enum cfg80211_station_type statype)
3945{
3946 if (params->listen_interval != -1)
3947 return -EINVAL;
c72e1140
AN		 3948 if (params->aid &&
3949 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3950 return -EINVAL;
3951
3952 /* When you run into this, adjust the code below for the new flag */
3953 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3954
3955 switch (statype) {
eef941e6
TP		 3956 case CFG80211_STA_MESH_PEER_KERNEL:
3957 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3958 /*
3959 * No ignoring the TDLS flag here -- the userspace mesh
3960 * code doesn't have the bug of including TDLS in the
3961 * mask everywhere.
3962 */
3963 if (params->sta_flags_mask &
3964 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3965 BIT(NL80211_STA_FLAG_MFP) |
3966 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3967 return -EINVAL;
3968 break;
3969 case CFG80211_STA_TDLS_PEER_SETUP:
3970 case CFG80211_STA_TDLS_PEER_ACTIVE:
3971 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3972 return -EINVAL;
3973 /* ignore since it can't change */
3974 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3975 break;
3976 default:
3977 /* disallow mesh-specific things */
3978 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3979 return -EINVAL;
3980 if (params->local_pm)
3981 return -EINVAL;
3982 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3983 return -EINVAL;
3984 }
3985
3986 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3987 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3988 /* TDLS can't be set, ... */
3989 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3990 return -EINVAL;
3991 /*
3992 * ... but don't bother the driver with it. This works around
3993 * a hostapd/wpa_supplicant issue -- it always includes the
3994 * TLDS_PEER flag in the mask even for AP mode.
3995 */
3996 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3997 }
3998
3999 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
4000 /* reject other things that can't change */
4001 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4002 return -EINVAL;
4003 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4004 return -EINVAL;
4005 if (params->supported_rates)
4006 return -EINVAL;
4007 if (params->ext_capab || params->ht_capa || params->vht_capa)
4008 return -EINVAL;
4009 }
4010
4011 if (statype != CFG80211_STA_AP_CLIENT) {
4012 if (params->vlan)
4013 return -EINVAL;
4014 }
4015
4016 switch (statype) {
4017 case CFG80211_STA_AP_MLME_CLIENT:
4018 /* Use this only for authorizing/unauthorizing a station */
4019 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4020 return -EOPNOTSUPP;
4021 break;
4022 case CFG80211_STA_AP_CLIENT:
4023 /* accept only the listed bits */
4024 if (params->sta_flags_mask &
4025 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4026 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4027 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4028 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4029 BIT(NL80211_STA_FLAG_WME) |
4030 BIT(NL80211_STA_FLAG_MFP)))
4031 return -EINVAL;
4032
4033 /* but authenticated/associated only if driver handles it */
4034 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4035 params->sta_flags_mask &
4036 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4037 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4038 return -EINVAL;
4039 break;
4040 case CFG80211_STA_IBSS:
4041 case CFG80211_STA_AP_STA:
4042 /* reject any changes other than AUTHORIZED */
4043 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4044 return -EINVAL;
4045 break;
4046 case CFG80211_STA_TDLS_PEER_SETUP:
4047 /* reject any changes other than AUTHORIZED or WME */
4048 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4049 BIT(NL80211_STA_FLAG_WME)))
4050 return -EINVAL;
4051 /* force (at least) rates when authorizing */
4052 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4053 !params->supported_rates)
4054 return -EINVAL;
4055 break;
4056 case CFG80211_STA_TDLS_PEER_ACTIVE:
4057 /* reject any changes */
4058 return -EINVAL;
eef941e6 4059 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4060 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4061 return -EINVAL;
4062 break;
eef941e6 4063 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4064 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4065 return -EINVAL;
4066 break;
4067 }
4068
4069 return 0;
4070}
4071EXPORT_SYMBOL(cfg80211_check_station_change);
4072
5727ef1b 4073/*
c258d2de 4074 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4075 */
80b99899
JB		 4076static struct net_device *get_vlan(struct genl_info *info,
4077 struct cfg80211_registered_device *rdev)
5727ef1b 4078{
463d0183 4079 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4080 struct net_device *v;
4081 int ret;
4082
4083 if (!vlanattr)
4084 return NULL;
4085
4086 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4087 if (!v)
4088 return ERR_PTR(-ENODEV);
4089
4090 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4091 ret = -EINVAL;
4092 goto error;
5727ef1b 4093 }
80b99899 4094
77ee7c89
JB		 4095 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4096 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4097 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4098 ret = -EINVAL;
4099 goto error;
4100 }
4101
80b99899
JB		 4102 if (!netif_running(v)) {
4103 ret = -ENETDOWN;
4104 goto error;
4105 }
4106
4107 return v;
4108 error:
4109 dev_put(v);
4110 return ERR_PTR(ret);
5727ef1b
JB		 4111}
4112
94e860f1
JB		 4113static const struct nla_policy
4114nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4115 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4116 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4117};
4118
ff276691
JB		 4119static int nl80211_parse_sta_wme(struct genl_info *info,
4120 struct station_parameters *params)
df881293 4121{
df881293
JM		 4122 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4123 struct nlattr *nla;
4124 int err;
4125
df881293
JM		 4126 /* parse WME attributes if present */
4127 if (!info->attrs[NL80211_ATTR_STA_WME])
4128 return 0;
4129
4130 nla = info->attrs[NL80211_ATTR_STA_WME];
4131 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4132 nl80211_sta_wme_policy);
4133 if (err)
4134 return err;
4135
4136 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4137 params->uapsd_queues = nla_get_u8(
4138 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4139 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4140 return -EINVAL;
4141
4142 if (tb[NL80211_STA_WME_MAX_SP])
4143 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4144
4145 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4146 return -EINVAL;
4147
4148 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4149
4150 return 0;
4151}
4152
c01fc9ad
SD		 4153static int nl80211_parse_sta_channel_info(struct genl_info *info,
4154 struct station_parameters *params)
4155{
4156 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4157 params->supported_channels =
4158 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4159 params->supported_channels_len =
4160 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4161 /*
4162 * Need to include at least one (first channel, number of
4163 * channels) tuple for each subband, and must have proper
4164 * tuples for the rest of the data as well.
4165 */
4166 if (params->supported_channels_len < 2)
4167 return -EINVAL;
4168 if (params->supported_channels_len % 2)
4169 return -EINVAL;
4170 }
4171
4172 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4173 params->supported_oper_classes =
4174 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4175 params->supported_oper_classes_len =
4176 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4177 /*
4178 * The value of the Length field of the Supported Operating
4179 * Classes element is between 2 and 253.
4180 */
4181 if (params->supported_oper_classes_len < 2 ||
4182 params->supported_oper_classes_len > 253)
4183 return -EINVAL;
4184 }
4185 return 0;
4186}
4187
ff276691
JB		 4188static int nl80211_set_station_tdls(struct genl_info *info,
4189 struct station_parameters *params)
4190{
c01fc9ad 4191 int err;
ff276691 4192 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4193 if (info->attrs[NL80211_ATTR_PEER_AID])
4194 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4195 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4196 params->ht_capa =
4197 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4198 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4199 params->vht_capa =
4200 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4201
c01fc9ad
SD		 4202 err = nl80211_parse_sta_channel_info(info, params);
4203 if (err)
4204 return err;
4205
ff276691
JB		 4206 return nl80211_parse_sta_wme(info, params);
4207}
4208
5727ef1b
JB		 4209static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4210{
4c476991 4211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4212 struct net_device *dev = info->user_ptr[1];
5727ef1b 4213 struct station_parameters params;
77ee7c89
JB		 4214 u8 *mac_addr;
4215 int err;
5727ef1b
JB		 4216
4217 memset(&params, 0, sizeof(params));
4218
4219 params.listen_interval = -1;
4220
77ee7c89
JB		 4221 if (!rdev->ops->change_station)
4222 return -EOPNOTSUPP;
4223
5727ef1b
JB		 4224 if (info->attrs[NL80211_ATTR_STA_AID])
4225 return -EINVAL;
4226
4227 if (!info->attrs[NL80211_ATTR_MAC])
4228 return -EINVAL;
4229
4230 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4231
4232 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4233 params.supported_rates =
4234 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4235 params.supported_rates_len =
4236 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4237 }
4238
9d62a986
JM		 4239 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4240 params.capability =
4241 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4242 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4243 }
4244
4245 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4246 params.ext_capab =
4247 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4248 params.ext_capab_len =
4249 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4250 }
4251
df881293 4252 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4253 return -EINVAL;
36aedc90 4254
bdd3ae3d 4255 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4256 return -EINVAL;
4257
f8bacc21 4258 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4259 params.plink_action =
f8bacc21
JB		 4260 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4261 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4262 return -EINVAL;
4263 }
2ec600d6 4264
f8bacc21 4265 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4266 params.plink_state =
f8bacc21
JB		 4267 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4268 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4269 return -EINVAL;
4270 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4271 }
9c3990aa 4272
3b1c5a53
MP		 4273 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4274 enum nl80211_mesh_power_mode pm = nla_get_u32(
4275 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4276
4277 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4278 pm > NL80211_MESH_POWER_MAX)
4279 return -EINVAL;
4280
4281 params.local_pm = pm;
4282 }
4283
77ee7c89
JB		 4284 /* Include parameters for TDLS peer (will check later) */
4285 err = nl80211_set_station_tdls(info, &params);
4286 if (err)
4287 return err;
4288
4289 params.vlan = get_vlan(info, rdev);
4290 if (IS_ERR(params.vlan))
4291 return PTR_ERR(params.vlan);
4292
a97f4424
JB		 4293 switch (dev->ieee80211_ptr->iftype) {
4294 case NL80211_IFTYPE_AP:
4295 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4296 case NL80211_IFTYPE_P2P_GO:
074ac8df 4297 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4298 case NL80211_IFTYPE_STATION:
267335d6 4299 case NL80211_IFTYPE_ADHOC:
a97f4424 4300 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4301 break;
4302 default:
77ee7c89
JB		 4303 err = -EOPNOTSUPP;
4304 goto out_put_vlan;
034d655e
JB		 4305 }
4306
77ee7c89 4307 /* driver will call cfg80211_check_station_change() */
e35e4d28 4308 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4309
77ee7c89 4310 out_put_vlan:
5727ef1b
JB		 4311 if (params.vlan)
4312 dev_put(params.vlan);
3b85875a 4313
5727ef1b
JB		 4314 return err;
4315}
4316
4317static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4318{
4c476991 4319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4320 int err;
4c476991 4321 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4322 struct station_parameters params;
4323 u8 *mac_addr = NULL;
4324
4325 memset(&params, 0, sizeof(params));
4326
984c311b
JB		 4327 if (!rdev->ops->add_station)
4328 return -EOPNOTSUPP;
4329
5727ef1b
JB		 4330 if (!info->attrs[NL80211_ATTR_MAC])
4331 return -EINVAL;
4332
5727ef1b
JB		 4333 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4334 return -EINVAL;
4335
4336 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4337 return -EINVAL;
4338
5e4b6f56
JM		 4339 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4340 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4341 return -EINVAL;
4342
5727ef1b
JB		 4343 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4344 params.supported_rates =
4345 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4346 params.supported_rates_len =
4347 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4348 params.listen_interval =
4349 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4350
3d124ea2 4351 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4352 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4353 else
4354 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4355 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4356 return -EINVAL;
51b50fbe 4357
9d62a986
JM		 4358 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4359 params.capability =
4360 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4361 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4362 }
4363
4364 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4365 params.ext_capab =
4366 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4367 params.ext_capab_len =
4368 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4369 }
4370
36aedc90
JM		 4371 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4372 params.ht_capa =
4373 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4374
f461be3e
MP		 4375 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4376 params.vht_capa =
4377 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4378
60f4a7b1
MK		 4379 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4380 params.opmode_notif_used = true;
4381 params.opmode_notif =
4382 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4383 }
4384
f8bacc21 4385 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4386 params.plink_action =
f8bacc21
JB		 4387 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4388 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4389 return -EINVAL;
4390 }
96b78dff 4391
c01fc9ad
SD		 4392 err = nl80211_parse_sta_channel_info(info, &params);
4393 if (err)
4394 return err;
4395
ff276691
JB		 4396 err = nl80211_parse_sta_wme(info, &params);
4397 if (err)
4398 return err;
bdd90d5e 4399
bdd3ae3d 4400 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4401 return -EINVAL;
4402
496fcc29
JB		 4403 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4404 * as userspace might just pass through the capabilities from the IEs
4405 * directly, rather than enforcing this restriction and returning an
4406 * error in this case.
4407 */
4408 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4409 params.ht_capa = NULL;
4410 params.vht_capa = NULL;
4411 }
4412
77ee7c89
JB		 4413 /* When you run into this, adjust the code below for the new flag */
4414 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4415
bdd90d5e
JB		 4416 switch (dev->ieee80211_ptr->iftype) {
4417 case NL80211_IFTYPE_AP:
4418 case NL80211_IFTYPE_AP_VLAN:
4419 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4420 /* ignore WME attributes if iface/sta is not capable */
4421 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4422 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4423 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4424
bdd90d5e 4425 /* TDLS peers cannot be added */
3d124ea2
JM		 4426 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4427 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4428 return -EINVAL;
bdd90d5e
JB		 4429 /* but don't bother the driver with it */
4430 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4431
d582cffb
JB		 4432 /* allow authenticated/associated only if driver handles it */
4433 if (!(rdev->wiphy.features &
4434 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4435 params.sta_flags_mask &
4436 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4437 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4438 return -EINVAL;
4439
bdd90d5e
JB		 4440 /* must be last in here for error handling */
4441 params.vlan = get_vlan(info, rdev);
4442 if (IS_ERR(params.vlan))
4443 return PTR_ERR(params.vlan);
4444 break;
4445 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4446 /* ignore uAPSD data */
4447 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4448
d582cffb
JB		 4449 /* associated is disallowed */
4450 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4451 return -EINVAL;
bdd90d5e 4452 /* TDLS peers cannot be added */
3d124ea2
JM		 4453 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4454 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4455 return -EINVAL;
4456 break;
4457 case NL80211_IFTYPE_STATION:
93d08f0b 4458 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4459 /* ignore uAPSD data */
4460 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4461
77ee7c89
JB		 4462 /* these are disallowed */
4463 if (params.sta_flags_mask &
4464 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4465 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4466 return -EINVAL;
bdd90d5e
JB		 4467 /* Only TDLS peers can be added */
4468 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4469 return -EINVAL;
4470 /* Can only add if TDLS ... */
4471 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4472 return -EOPNOTSUPP;
4473 /* ... with external setup is supported */
4474 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4475 return -EOPNOTSUPP;
77ee7c89
JB		 4476 /*
4477 * Older wpa_supplicant versions always mark the TDLS peer
4478 * as authorized, but it shouldn't yet be.
4479 */
4480 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4481 break;
4482 default:
4483 return -EOPNOTSUPP;
c75786c9
EP		 4484 }
4485
bdd90d5e 4486 /* be aware of params.vlan when changing code here */
5727ef1b 4487
e35e4d28 4488 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4489
5727ef1b
JB		 4490 if (params.vlan)
4491 dev_put(params.vlan);
5727ef1b
JB		 4492 return err;
4493}
4494
4495static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4496{
4c476991
JB		 4497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4498 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4499 struct station_del_parameters params;
4500
4501 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4502
4503 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4504 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4505
e80cf853 4506 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4507 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4508 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4509 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4510 return -EINVAL;
5727ef1b 4511
4c476991
JB		 4512 if (!rdev->ops->del_station)
4513 return -EOPNOTSUPP;
3b85875a 4514
98856866
JM		 4515 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4516 params.subtype =
4517 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4518 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4519 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4520 return -EINVAL;
4521 } else {
4522 /* Default to Deauthentication frame */
4523 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4524 }
4525
4526 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4527 params.reason_code =
4528 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4529 if (params.reason_code == 0)
4530 return -EINVAL; /* 0 is reserved */
4531 } else {
4532 /* Default to reason code 2 */
4533 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4534 }
4535
89c771e5 4536 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4537}
4538
15e47304 4539static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4540 int flags, struct net_device *dev,
4541 u8 *dst, u8 *next_hop,
4542 struct mpath_info *pinfo)
4543{
4544 void *hdr;
4545 struct nlattr *pinfoattr;
4546
1ef4c850 4547 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4548 if (!hdr)
4549 return -1;
4550
9360ffd1
DM		 4551 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4552 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4553 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4554 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4555 goto nla_put_failure;
f5ea9120 4556
2ec600d6
LCC		 4557 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4558 if (!pinfoattr)
4559 goto nla_put_failure;
9360ffd1
DM		 4560 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4561 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4562 pinfo->frame_qlen))
4563 goto nla_put_failure;
4564 if (((pinfo->filled & MPATH_INFO_SN) &&
4565 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4566 ((pinfo->filled & MPATH_INFO_METRIC) &&
4567 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4568 pinfo->metric)) ||
4569 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4570 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4571 pinfo->exptime)) ||
4572 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4573 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4574 pinfo->flags)) ||
4575 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4576 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4577 pinfo->discovery_timeout)) ||
4578 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4579 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4580 pinfo->discovery_retries)))
4581 goto nla_put_failure;
2ec600d6
LCC		 4582
4583 nla_nest_end(msg, pinfoattr);
4584
053c095a
JB		 4585 genlmsg_end(msg, hdr);
4586 return 0;
2ec600d6
LCC		 4587
4588 nla_put_failure:
bc3ed28c
TG		 4589 genlmsg_cancel(msg, hdr);
4590 return -EMSGSIZE;
2ec600d6
LCC		 4591}
4592
4593static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4594 struct netlink_callback *cb)
2ec600d6 4595{
2ec600d6 4596 struct mpath_info pinfo;
1b8ec87a 4597 struct cfg80211_registered_device *rdev;
97990a06 4598 struct wireless_dev *wdev;
2ec600d6
LCC		 4599 u8 dst[ETH_ALEN];
4600 u8 next_hop[ETH_ALEN];
97990a06 4601 int path_idx = cb->args[2];
2ec600d6 4602 int err;
2ec600d6 4603
1b8ec87a 4604 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4605 if (err)
4606 return err;
bba95fef 4607
1b8ec87a 4608 if (!rdev->ops->dump_mpath) {
eec60b03 4609 err = -EOPNOTSUPP;
bba95fef
JB		 4610 goto out_err;
4611 }
4612
97990a06 4613 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4614 err = -EOPNOTSUPP;
0448b5fc 4615 goto out_err;
eec60b03
JM		 4616 }
4617
bba95fef 4618 while (1) {
1b8ec87a 4619 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4620 next_hop, &pinfo);
bba95fef 4621 if (err == -ENOENT)
2ec600d6 4622 break;
bba95fef 4623 if (err)
3b85875a 4624 goto out_err;
2ec600d6 4625
15e47304 4626 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4627 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4628 wdev->netdev, dst, next_hop,
bba95fef
JB		 4629 &pinfo) < 0)
4630 goto out;
2ec600d6 4631
bba95fef 4632 path_idx++;
2ec600d6 4633 }
2ec600d6 4634
2ec600d6 4635
bba95fef 4636 out:
97990a06 4637 cb->args[2] = path_idx;
bba95fef 4638 err = skb->len;
bba95fef 4639 out_err:
1b8ec87a 4640 nl80211_finish_wdev_dump(rdev);
bba95fef 4641 return err;
2ec600d6
LCC		 4642}
4643
4644static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4645{
4c476991 4646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4647 int err;
4c476991 4648 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4649 struct mpath_info pinfo;
4650 struct sk_buff *msg;
4651 u8 *dst = NULL;
4652 u8 next_hop[ETH_ALEN];
4653
4654 memset(&pinfo, 0, sizeof(pinfo));
4655
4656 if (!info->attrs[NL80211_ATTR_MAC])
4657 return -EINVAL;
4658
4659 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4660
4c476991
JB		 4661 if (!rdev->ops->get_mpath)
4662 return -EOPNOTSUPP;
2ec600d6 4663
4c476991
JB		 4664 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4665 return -EOPNOTSUPP;
eec60b03 4666
e35e4d28 4667 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4668 if (err)
4c476991 4669 return err;
2ec600d6 4670
fd2120ca 4671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4672 if (!msg)
4c476991 4673 return -ENOMEM;
2ec600d6 4674
15e47304 4675 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4676 dev, dst, next_hop, &pinfo) < 0) {
4677 nlmsg_free(msg);
4678 return -ENOBUFS;
4679 }
3b85875a 4680
4c476991 4681 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4682}
4683
4684static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4685{
4c476991
JB		 4686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4687 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4688 u8 *dst = NULL;
4689 u8 *next_hop = NULL;
4690
4691 if (!info->attrs[NL80211_ATTR_MAC])
4692 return -EINVAL;
4693
4694 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4695 return -EINVAL;
4696
4697 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4698 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4699
4c476991
JB		 4700 if (!rdev->ops->change_mpath)
4701 return -EOPNOTSUPP;
35a8efe1 4702
4c476991
JB		 4703 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4704 return -EOPNOTSUPP;
2ec600d6 4705
e35e4d28 4706 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4707}
4c476991 4708
2ec600d6
LCC		 4709static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4710{
4c476991
JB		 4711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4712 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4713 u8 *dst = NULL;
4714 u8 *next_hop = NULL;
4715
4716 if (!info->attrs[NL80211_ATTR_MAC])
4717 return -EINVAL;
4718
4719 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4720 return -EINVAL;
4721
4722 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4723 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4724
4c476991
JB		 4725 if (!rdev->ops->add_mpath)
4726 return -EOPNOTSUPP;
35a8efe1 4727
4c476991
JB		 4728 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4729 return -EOPNOTSUPP;
2ec600d6 4730
e35e4d28 4731 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4732}
4733
4734static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4735{
4c476991
JB		 4736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4737 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4738 u8 *dst = NULL;
4739
4740 if (info->attrs[NL80211_ATTR_MAC])
4741 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4742
4c476991
JB		 4743 if (!rdev->ops->del_mpath)
4744 return -EOPNOTSUPP;
3b85875a 4745
e35e4d28 4746 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4747}
4748
66be7d2b
HR		 4749static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4750{
4751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4752 int err;
4753 struct net_device *dev = info->user_ptr[1];
4754 struct mpath_info pinfo;
4755 struct sk_buff *msg;
4756 u8 *dst = NULL;
4757 u8 mpp[ETH_ALEN];
4758
4759 memset(&pinfo, 0, sizeof(pinfo));
4760
4761 if (!info->attrs[NL80211_ATTR_MAC])
4762 return -EINVAL;
4763
4764 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4765
4766 if (!rdev->ops->get_mpp)
4767 return -EOPNOTSUPP;
4768
4769 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4770 return -EOPNOTSUPP;
4771
4772 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4773 if (err)
4774 return err;
4775
4776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4777 if (!msg)
4778 return -ENOMEM;
4779
4780 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4781 dev, dst, mpp, &pinfo) < 0) {
4782 nlmsg_free(msg);
4783 return -ENOBUFS;
4784 }
4785
4786 return genlmsg_reply(msg, info);
4787}
4788
4789static int nl80211_dump_mpp(struct sk_buff *skb,
4790 struct netlink_callback *cb)
4791{
4792 struct mpath_info pinfo;
4793 struct cfg80211_registered_device *rdev;
4794 struct wireless_dev *wdev;
4795 u8 dst[ETH_ALEN];
4796 u8 mpp[ETH_ALEN];
4797 int path_idx = cb->args[2];
4798 int err;
4799
4800 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4801 if (err)
4802 return err;
4803
4804 if (!rdev->ops->dump_mpp) {
4805 err = -EOPNOTSUPP;
4806 goto out_err;
4807 }
4808
4809 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4810 err = -EOPNOTSUPP;
4811 goto out_err;
4812 }
4813
4814 while (1) {
4815 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4816 mpp, &pinfo);
4817 if (err == -ENOENT)
4818 break;
4819 if (err)
4820 goto out_err;
4821
4822 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4823 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4824 wdev->netdev, dst, mpp,
4825 &pinfo) < 0)
4826 goto out;
4827
4828 path_idx++;
4829 }
4830
4831 out:
4832 cb->args[2] = path_idx;
4833 err = skb->len;
4834 out_err:
4835 nl80211_finish_wdev_dump(rdev);
4836 return err;
4837}
4838
9f1ba906
JM		 4839static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4840{
4c476991
JB		 4841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4842 struct net_device *dev = info->user_ptr[1];
c56589ed 4843 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4844 struct bss_parameters params;
c56589ed 4845 int err;
9f1ba906
JM		 4846
4847 memset(&params, 0, sizeof(params));
4848 /* default to not changing parameters */
4849 params.use_cts_prot = -1;
4850 params.use_short_preamble = -1;
4851 params.use_short_slot_time = -1;
fd8aaaf3 4852 params.ap_isolate = -1;
50b12f59 4853 params.ht_opmode = -1;
53cabad7
JB		 4854 params.p2p_ctwindow = -1;
4855 params.p2p_opp_ps = -1;
9f1ba906
JM		 4856
4857 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4858 params.use_cts_prot =
4859 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4860 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4861 params.use_short_preamble =
4862 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4863 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4864 params.use_short_slot_time =
4865 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4866 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4867 params.basic_rates =
4868 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4869 params.basic_rates_len =
4870 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4871 }
fd8aaaf3
FF		 4872 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4873 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4874 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4875 params.ht_opmode =
4876 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4877
53cabad7
JB		 4878 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4880 return -EINVAL;
4881 params.p2p_ctwindow =
4882 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4883 if (params.p2p_ctwindow < 0)
4884 return -EINVAL;
4885 if (params.p2p_ctwindow != 0 &&
4886 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4887 return -EINVAL;
4888 }
4889
4890 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4891 u8 tmp;
4892
4893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4894 return -EINVAL;
4895 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4896 if (tmp > 1)
4897 return -EINVAL;
4898 params.p2p_opp_ps = tmp;
4899 if (params.p2p_opp_ps &&
4900 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4901 return -EINVAL;
4902 }
4903
4c476991
JB		 4904 if (!rdev->ops->change_bss)
4905 return -EOPNOTSUPP;
9f1ba906 4906
074ac8df 4907 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4908 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4909 return -EOPNOTSUPP;
3b85875a 4910
c56589ed
SW		 4911 wdev_lock(wdev);
4912 err = rdev_change_bss(rdev, dev, &params);
4913 wdev_unlock(wdev);
4914
4915 return err;
9f1ba906
JM		 4916}
4917
b54452b0 4918static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4919 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4920 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4921 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4922 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4923 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4924 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4925 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4926};
4927
4928static int parse_reg_rule(struct nlattr *tb[],
4929 struct ieee80211_reg_rule *reg_rule)
4930{
4931 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4932 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4933
4934 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4935 return -EINVAL;
4936 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4937 return -EINVAL;
4938 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4939 return -EINVAL;
b0dfd2ea
JD		 4940 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4941 return -EINVAL;
b2e1b302
LR		 4942 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4943 return -EINVAL;
4944
4945 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4946
4947 freq_range->start_freq_khz =
4948 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4949 freq_range->end_freq_khz =
4950 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4951 freq_range->max_bandwidth_khz =
4952 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4953
4954 power_rule->max_eirp =
4955 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4956
4957 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4958 power_rule->max_antenna_gain =
4959 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4960
089027e5
JD		 4961 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4962 reg_rule->dfs_cac_ms =
4963 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4964
b2e1b302
LR		 4965 return 0;
4966}
4967
4968static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4969{
b2e1b302 4970 char *data = NULL;
05050753 4971 bool is_indoor;
57b5ce07 4972 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 4973 u32 owner_nlportid;
4974
b2e1b302 4975
80778f18
LR		 4976 /*
4977 * You should only get this when cfg80211 hasn't yet initialized
4978 * completely when built-in to the kernel right between the time
4979 * window between nl80211_init() and regulatory_init(), if that is
4980 * even possible.
4981 */
458f4f9e 4982 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4983 return -EINPROGRESS;
80778f18 4984
57b5ce07
LR		 4985 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4986 user_reg_hint_type =
4987 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4988 else
4989 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4990
4991 switch (user_reg_hint_type) {
4992 case NL80211_USER_REG_HINT_USER:
4993 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4994 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4995 return -EINVAL;
4996
4997 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4998 return regulatory_hint_user(data, user_reg_hint_type);
4999 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5000 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5001 owner_nlportid = info->snd_portid;
5002 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5003 } else {
5004 owner_nlportid = 0;
5005 is_indoor = true;
5006 }
5007
5008 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5009 default:
5010 return -EINVAL;
5011 }
b2e1b302
LR		 5012}
5013
24bdd9f4 5014static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5015 struct genl_info *info)
93da9cc1 5016{
4c476991 5017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5018 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5019 struct wireless_dev *wdev = dev->ieee80211_ptr;
5020 struct mesh_config cur_params;
5021 int err = 0;
93da9cc1 5022 void *hdr;
5023 struct nlattr *pinfoattr;
5024 struct sk_buff *msg;
5025
29cbe68c
JB		 5026 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5027 return -EOPNOTSUPP;
5028
24bdd9f4 5029 if (!rdev->ops->get_mesh_config)
4c476991 5030 return -EOPNOTSUPP;
f3f92586 5031
29cbe68c
JB		 5032 wdev_lock(wdev);
5033 /* If not connected, get default parameters */
5034 if (!wdev->mesh_id_len)
5035 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5036 else
e35e4d28 5037 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5038 wdev_unlock(wdev);
5039
93da9cc1 5040 if (err)
4c476991 5041 return err;
93da9cc1 5042
5043 /* Draw up a netlink message to send back */
fd2120ca 5044 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5045 if (!msg)
5046 return -ENOMEM;
15e47304 5047 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5048 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5049 if (!hdr)
efe1cf0c 5050 goto out;
24bdd9f4 5051 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5052 if (!pinfoattr)
5053 goto nla_put_failure;
9360ffd1
DM		 5054 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5055 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5056 cur_params.dot11MeshRetryTimeout) ||
5057 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5058 cur_params.dot11MeshConfirmTimeout) ||
5059 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5060 cur_params.dot11MeshHoldingTimeout) ||
5061 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5062 cur_params.dot11MeshMaxPeerLinks) ||
5063 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5064 cur_params.dot11MeshMaxRetries) ||
5065 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5066 cur_params.dot11MeshTTL) ||
5067 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5068 cur_params.element_ttl) ||
5069 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5070 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5071 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5072 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5073 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5074 cur_params.dot11MeshHWMPmaxPREQretries) ||
5075 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5076 cur_params.path_refresh_time) ||
5077 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5078 cur_params.min_discovery_timeout) ||
5079 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5080 cur_params.dot11MeshHWMPactivePathTimeout) ||
5081 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5082 cur_params.dot11MeshHWMPpreqMinInterval) ||
5083 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5084 cur_params.dot11MeshHWMPperrMinInterval) ||
5085 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5086 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5087 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5088 cur_params.dot11MeshHWMPRootMode) ||
5089 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5090 cur_params.dot11MeshHWMPRannInterval) ||
5091 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5092 cur_params.dot11MeshGateAnnouncementProtocol) ||
5093 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5094 cur_params.dot11MeshForwarding) ||
5095 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5096 cur_params.rssi_threshold) ||
5097 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5098 cur_params.ht_opmode) ||
5099 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5100 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5101 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5102 cur_params.dot11MeshHWMProotInterval) ||
5103 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5104 cur_params.dot11MeshHWMPconfirmationInterval) ||
5105 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5106 cur_params.power_mode) ||
5107 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5108 cur_params.dot11MeshAwakeWindowDuration) ||
5109 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5110 cur_params.plink_timeout))
9360ffd1 5111 goto nla_put_failure;
93da9cc1 5112 nla_nest_end(msg, pinfoattr);
5113 genlmsg_end(msg, hdr);
4c476991 5114 return genlmsg_reply(msg, info);
93da9cc1 5115
3b85875a 5116 nla_put_failure:
93da9cc1 5117 genlmsg_cancel(msg, hdr);
efe1cf0c 5118 out:
d080e275 5119 nlmsg_free(msg);
4c476991 5120 return -ENOBUFS;
93da9cc1 5121}
5122
b54452b0 5123static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5124 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5125 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5126 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5127 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5128 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5129 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5130 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5131 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5132 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5133 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5134 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5135 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5136 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5137 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5138 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5139 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5140 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5141 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5142 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5143 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5144 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5145 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5146 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5147 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5148 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5149 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5150 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5151 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5152};
5153
c80d545d
JC		 5154static const struct nla_policy
5155 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5156 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5157 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5158 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5159 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5160 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5161 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5162 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5163 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5164 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5165};
5166
24bdd9f4 5167static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5168 struct mesh_config *cfg,
5169 u32 *mask_out)
93da9cc1 5170{
93da9cc1 5171 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5172 u32 mask = 0;
93da9cc1 5173
ea54fba2
MP		 5174#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5175do { \
5176 if (tb[attr]) { \
5177 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5178 return -EINVAL; \
5179 cfg->param = fn(tb[attr]); \
5180 mask |= (1 << (attr - 1)); \
5181 } \
5182} while (0)
bd90fdcc
JB		 5183
5184
24bdd9f4 5185 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5186 return -EINVAL;
5187 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5188 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5189 nl80211_meshconf_params_policy))
93da9cc1 5190 return -EINVAL;
5191
93da9cc1 5192 /* This makes sure that there aren't more than 32 mesh config
5193 * parameters (otherwise our bitfield scheme would not work.) */
5194 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5195
5196 /* Fill in the params struct */
ea54fba2 5197 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5198 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5199 nla_get_u16);
ea54fba2 5200 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5201 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5202 nla_get_u16);
ea54fba2 5203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5204 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5205 nla_get_u16);
ea54fba2 5206 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5207 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5208 nla_get_u16);
ea54fba2 5209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5210 mask, NL80211_MESHCONF_MAX_RETRIES,
5211 nla_get_u8);
ea54fba2 5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5213 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5214 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5215 mask, NL80211_MESHCONF_ELEMENT_TTL,
5216 nla_get_u8);
ea54fba2 5217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5218 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5219 nla_get_u8);
ea54fba2
MP		 5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5221 1, 255, mask,
a4f606ea
CYY		 5222 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5223 nla_get_u32);
ea54fba2 5224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5225 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5226 nla_get_u8);
ea54fba2 5227 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5228 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5229 nla_get_u32);
ea54fba2 5230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5231 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5232 nla_get_u16);
ea54fba2
MP		 5233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5234 1, 65535, mask,
a4f606ea
CYY		 5235 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5236 nla_get_u32);
93da9cc1 5237 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5238 1, 65535, mask,
5239 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5240 nla_get_u16);
dca7e943 5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5242 1, 65535, mask,
5243 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5244 nla_get_u16);
93da9cc1 5245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5246 dot11MeshHWMPnetDiameterTraversalTime,
5247 1, 65535, mask,
a4f606ea
CYY		 5248 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5249 nla_get_u16);
ea54fba2
MP		 5250 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5251 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5252 nla_get_u8);
5253 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5254 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5255 nla_get_u16);
63c5723b 5256 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5257 dot11MeshGateAnnouncementProtocol, 0, 1,
5258 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5259 nla_get_u8);
ea54fba2 5260 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5261 mask, NL80211_MESHCONF_FORWARDING,
5262 nla_get_u8);
83374fe9 5263 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5264 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5265 nla_get_s32);
ea54fba2 5266 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5267 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5268 nla_get_u16);
5269 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5270 1, 65535, mask,
ac1073a6
CYY		 5271 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5272 nla_get_u32);
ea54fba2 5273 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5274 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5275 nla_get_u16);
5276 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5277 dot11MeshHWMPconfirmationInterval,
5278 1, 65535, mask,
728b19e5 5279 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5280 nla_get_u16);
3b1c5a53
MP		 5281 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5282 NL80211_MESH_POWER_ACTIVE,
5283 NL80211_MESH_POWER_MAX,
5284 mask, NL80211_MESHCONF_POWER_MODE,
5285 nla_get_u32);
5286 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5287 0, 65535, mask,
5288 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5289 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5290 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5291 nla_get_u32);
bd90fdcc
JB		 5292 if (mask_out)
5293 *mask_out = mask;
c80d545d 5294
bd90fdcc
JB		 5295 return 0;
5296
5297#undef FILL_IN_MESH_PARAM_IF_SET
5298}
5299
c80d545d
JC		 5300static int nl80211_parse_mesh_setup(struct genl_info *info,
5301 struct mesh_setup *setup)
5302{
bb2798d4 5303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5304 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5305
5306 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5307 return -EINVAL;
5308 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5309 info->attrs[NL80211_ATTR_MESH_SETUP],
5310 nl80211_mesh_setup_params_policy))
5311 return -EINVAL;
5312
d299a1f2
JC		 5313 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5314 setup->sync_method =
5315 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5316 IEEE80211_SYNC_METHOD_VENDOR :
5317 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5318
c80d545d
JC		 5319 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5320 setup->path_sel_proto =
5321 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5322 IEEE80211_PATH_PROTOCOL_VENDOR :
5323 IEEE80211_PATH_PROTOCOL_HWMP;
5324
5325 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5326 setup->path_metric =
5327 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5328 IEEE80211_PATH_METRIC_VENDOR :
5329 IEEE80211_PATH_METRIC_AIRTIME;
5330
581a8b0f
JC		 5331
5332 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5333 struct nlattr *ieattr =
581a8b0f 5334 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5335 if (!is_valid_ie_attr(ieattr))
5336 return -EINVAL;
581a8b0f
JC		 5337 setup->ie = nla_data(ieattr);
5338 setup->ie_len = nla_len(ieattr);
c80d545d 5339 }
bb2798d4
TP		 5340 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5341 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5342 return -EINVAL;
5343 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5344 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5345 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5346 if (setup->is_secure)
5347 setup->user_mpm = true;
c80d545d 5348
6e16d90b
CT		 5349 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5350 if (!setup->user_mpm)
5351 return -EINVAL;
5352 setup->auth_id =
5353 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5354 }
5355
c80d545d
JC		 5356 return 0;
5357}
5358
24bdd9f4 5359static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5360 struct genl_info *info)
bd90fdcc
JB		 5361{
5362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5363 struct net_device *dev = info->user_ptr[1];
29cbe68c 5364 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5365 struct mesh_config cfg;
5366 u32 mask;
5367 int err;
5368
29cbe68c
JB		 5369 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5370 return -EOPNOTSUPP;
5371
24bdd9f4 5372 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5373 return -EOPNOTSUPP;
5374
24bdd9f4 5375 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5376 if (err)
5377 return err;
5378
29cbe68c
JB		 5379 wdev_lock(wdev);
5380 if (!wdev->mesh_id_len)
5381 err = -ENOLINK;
5382
5383 if (!err)
e35e4d28 5384 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5385
5386 wdev_unlock(wdev);
5387
5388 return err;
93da9cc1 5389}
5390
ad30ca2c
AN		 5391static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5392 struct sk_buff *msg)
f130347c 5393{
f130347c
LR		 5394 struct nlattr *nl_reg_rules;
5395 unsigned int i;
f130347c 5396
458f4f9e
JB		 5397 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5398 (regdom->dfs_region &&
5399 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5400 goto nla_put_failure;
458f4f9e 5401
f130347c
LR		 5402 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5403 if (!nl_reg_rules)
ad30ca2c 5404 goto nla_put_failure;
f130347c 5405
458f4f9e 5406 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5407 struct nlattr *nl_reg_rule;
5408 const struct ieee80211_reg_rule *reg_rule;
5409 const struct ieee80211_freq_range *freq_range;
5410 const struct ieee80211_power_rule *power_rule;
97524820 5411 unsigned int max_bandwidth_khz;
f130347c 5412
458f4f9e 5413 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5414 freq_range = &reg_rule->freq_range;
5415 power_rule = &reg_rule->power_rule;
5416
5417 nl_reg_rule = nla_nest_start(msg, i);
5418 if (!nl_reg_rule)
ad30ca2c 5419 goto nla_put_failure;
f130347c 5420
97524820
JD		 5421 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5422 if (!max_bandwidth_khz)
5423 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5424 reg_rule);
5425
9360ffd1
DM		 5426 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5427 reg_rule->flags) ||
5428 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5429 freq_range->start_freq_khz) ||
5430 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5431 freq_range->end_freq_khz) ||
5432 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5433 max_bandwidth_khz) ||
9360ffd1
DM		 5434 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5435 power_rule->max_antenna_gain) ||
5436 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5437 power_rule->max_eirp) ||
5438 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5439 reg_rule->dfs_cac_ms))
ad30ca2c 5440 goto nla_put_failure;
f130347c
LR		 5441
5442 nla_nest_end(msg, nl_reg_rule);
5443 }
5444
5445 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5446 return 0;
5447
5448nla_put_failure:
5449 return -EMSGSIZE;
5450}
5451
5452static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5453{
5454 const struct ieee80211_regdomain *regdom = NULL;
5455 struct cfg80211_registered_device *rdev;
5456 struct wiphy *wiphy = NULL;
5457 struct sk_buff *msg;
5458 void *hdr;
5459
5460 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5461 if (!msg)
5462 return -ENOBUFS;
5463
5464 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5465 NL80211_CMD_GET_REG);
5466 if (!hdr)
5467 goto put_failure;
5468
5469 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5470 bool self_managed;
5471
ad30ca2c
AN		 5472 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5473 if (IS_ERR(rdev)) {
5474 nlmsg_free(msg);
5475 return PTR_ERR(rdev);
5476 }
5477
5478 wiphy = &rdev->wiphy;
1bdd716c
AN		 5479 self_managed = wiphy->regulatory_flags &
5480 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5481 regdom = get_wiphy_regdom(wiphy);
5482
1bdd716c
AN		 5483 /* a self-managed-reg device must have a private regdom */
5484 if (WARN_ON(!regdom && self_managed)) {
5485 nlmsg_free(msg);
5486 return -EINVAL;
5487 }
5488
ad30ca2c
AN		 5489 if (regdom &&
5490 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5491 goto nla_put_failure;
5492 }
5493
5494 if (!wiphy && reg_last_request_cell_base() &&
5495 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5496 NL80211_USER_REG_HINT_CELL_BASE))
5497 goto nla_put_failure;
5498
5499 rcu_read_lock();
5500
5501 if (!regdom)
5502 regdom = rcu_dereference(cfg80211_regdomain);
5503
5504 if (nl80211_put_regdom(regdom, msg))
5505 goto nla_put_failure_rcu;
5506
5507 rcu_read_unlock();
f130347c
LR		 5508
5509 genlmsg_end(msg, hdr);
5fe231e8 5510 return genlmsg_reply(msg, info);
f130347c 5511
458f4f9e
JB		 5512nla_put_failure_rcu:
5513 rcu_read_unlock();
f130347c
LR		 5514nla_put_failure:
5515 genlmsg_cancel(msg, hdr);
efe1cf0c 5516put_failure:
d080e275 5517 nlmsg_free(msg);
5fe231e8 5518 return -EMSGSIZE;
f130347c
LR		 5519}
5520
ad30ca2c
AN		 5521static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5522 u32 seq, int flags, struct wiphy *wiphy,
5523 const struct ieee80211_regdomain *regdom)
5524{
5525 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5526 NL80211_CMD_GET_REG);
5527
5528 if (!hdr)
5529 return -1;
5530
5531 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5532
5533 if (nl80211_put_regdom(regdom, msg))
5534 goto nla_put_failure;
5535
5536 if (!wiphy && reg_last_request_cell_base() &&
5537 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5538 NL80211_USER_REG_HINT_CELL_BASE))
5539 goto nla_put_failure;
5540
5541 if (wiphy &&
5542 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5543 goto nla_put_failure;
5544
1bdd716c
AN		 5545 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5546 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5547 goto nla_put_failure;
5548
053c095a
JB		 5549 genlmsg_end(msg, hdr);
5550 return 0;
ad30ca2c
AN		 5551
5552nla_put_failure:
5553 genlmsg_cancel(msg, hdr);
5554 return -EMSGSIZE;
5555}
5556
5557static int nl80211_get_reg_dump(struct sk_buff *skb,
5558 struct netlink_callback *cb)
5559{
5560 const struct ieee80211_regdomain *regdom = NULL;
5561 struct cfg80211_registered_device *rdev;
5562 int err, reg_idx, start = cb->args[2];
5563
5564 rtnl_lock();
5565
5566 if (cfg80211_regdomain && start == 0) {
5567 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5568 NLM_F_MULTI, NULL,
5569 rtnl_dereference(cfg80211_regdomain));
5570 if (err < 0)
5571 goto out_err;
5572 }
5573
5574 /* the global regdom is idx 0 */
5575 reg_idx = 1;
5576 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5577 regdom = get_wiphy_regdom(&rdev->wiphy);
5578 if (!regdom)
5579 continue;
5580
5581 if (++reg_idx <= start)
5582 continue;
5583
5584 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5585 NLM_F_MULTI, &rdev->wiphy, regdom);
5586 if (err < 0) {
5587 reg_idx--;
5588 break;
5589 }
5590 }
5591
5592 cb->args[2] = reg_idx;
5593 err = skb->len;
5594out_err:
5595 rtnl_unlock();
5596 return err;
5597}
5598
b2e1b302
LR		 5599static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5600{
5601 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5602 struct nlattr *nl_reg_rule;
ea372c54
JB		 5603 char *alpha2;
5604 int rem_reg_rules, r;
b2e1b302 5605 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5606 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5607 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5608
5609 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5610 return -EINVAL;
5611
5612 if (!info->attrs[NL80211_ATTR_REG_RULES])
5613 return -EINVAL;
5614
5615 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5616
8b60b078
LR		 5617 if (info->attrs[NL80211_ATTR_DFS_REGION])
5618 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5619
b2e1b302 5620 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5621 rem_reg_rules) {
b2e1b302
LR		 5622 num_rules++;
5623 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5624 return -EINVAL;
b2e1b302
LR		 5625 }
5626
e438768f
LR		 5627 if (!reg_is_valid_request(alpha2))
5628 return -EINVAL;
5629
b2e1b302 5630 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5631 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5632
5633 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5634 if (!rd)
5635 return -ENOMEM;
b2e1b302
LR		 5636
5637 rd->n_reg_rules = num_rules;
5638 rd->alpha2[0] = alpha2[0];
5639 rd->alpha2[1] = alpha2[1];
5640
8b60b078
LR		 5641 /*
5642 * Disable DFS master mode if the DFS region was
5643 * not supported or known on this kernel.
5644 */
5645 if (reg_supported_dfs_region(dfs_region))
5646 rd->dfs_region = dfs_region;
5647
b2e1b302 5648 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5649 rem_reg_rules) {
ae811e21
JB		 5650 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5651 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5652 reg_rule_policy);
5653 if (r)
5654 goto bad_reg;
b2e1b302
LR		 5655 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5656 if (r)
5657 goto bad_reg;
5658
5659 rule_idx++;
5660
d0e18f83
LR		 5661 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5662 r = -EINVAL;
b2e1b302 5663 goto bad_reg;
d0e18f83 5664 }
b2e1b302
LR		 5665 }
5666
c37722bd 5667 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5668 /* set_regdom took ownership */
1a919318 5669 rd = NULL;
b2e1b302 5670
d2372b31 5671 bad_reg:
b2e1b302 5672 kfree(rd);
d0e18f83 5673 return r;
b2e1b302
LR		 5674}
5675
83f5e2cf
JB		 5676static int validate_scan_freqs(struct nlattr *freqs)
5677{
5678 struct nlattr *attr1, *attr2;
5679 int n_channels = 0, tmp1, tmp2;
5680
5681 nla_for_each_nested(attr1, freqs, tmp1) {
5682 n_channels++;
5683 /*
5684 * Some hardware has a limited channel list for
5685 * scanning, and it is pretty much nonsensical
5686 * to scan for a channel twice, so disallow that
5687 * and don't require drivers to check that the
5688 * channel list they get isn't longer than what
5689 * they can scan, as long as they can scan all
5690 * the channels they registered at once.
5691 */
5692 nla_for_each_nested(attr2, freqs, tmp2)
5693 if (attr1 != attr2 &&
5694 nla_get_u32(attr1) == nla_get_u32(attr2))
5695 return 0;
5696 }
5697
5698 return n_channels;
5699}
5700
ad2b26ab
JB		 5701static int nl80211_parse_random_mac(struct nlattr **attrs,
5702 u8 *mac_addr, u8 *mac_addr_mask)
5703{
5704 int i;
5705
5706 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5707 eth_zero_addr(mac_addr);
5708 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5709 mac_addr[0] = 0x2;
5710 mac_addr_mask[0] = 0x3;
5711
5712 return 0;
5713 }
5714
5715 /* need both or none */
5716 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5717 return -EINVAL;
5718
5719 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5720 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5721
5722 /* don't allow or configure an mcast address */
5723 if (!is_multicast_ether_addr(mac_addr_mask) ||
5724 is_multicast_ether_addr(mac_addr))
5725 return -EINVAL;
5726
5727 /*
5728 * allow users to pass a MAC address that has bits set outside
5729 * of the mask, but don't bother drivers with having to deal
5730 * with such bits
5731 */
5732 for (i = 0; i < ETH_ALEN; i++)
5733 mac_addr[i] &= mac_addr_mask[i];
5734
5735 return 0;
5736}
5737
2a519311
JB		 5738static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5739{
4c476991 5740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5741 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5742 struct cfg80211_scan_request *request;
2a519311
JB		 5743 struct nlattr *attr;
5744 struct wiphy *wiphy;
83f5e2cf 5745 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5746 size_t ie_len;
2a519311 5747
f4a11bb0
JB		 5748 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5749 return -EINVAL;
5750
79c97e97 5751 wiphy = &rdev->wiphy;
2a519311 5752
4c476991
JB		 5753 if (!rdev->ops->scan)
5754 return -EOPNOTSUPP;
2a519311 5755
f9d15d16 5756 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5757 err = -EBUSY;
5758 goto unlock;
5759 }
2a519311
JB		 5760
5761 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5762 n_channels = validate_scan_freqs(
5763 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5764 if (!n_channels) {
5765 err = -EINVAL;
5766 goto unlock;
5767 }
2a519311 5768 } else {
bdfbec2d 5769 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5770 }
5771
5772 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5773 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5774 n_ssids++;
5775
f9f47529
JB		 5776 if (n_ssids > wiphy->max_scan_ssids) {
5777 err = -EINVAL;
5778 goto unlock;
5779 }
2a519311 5780
70692ad2
JM		 5781 if (info->attrs[NL80211_ATTR_IE])
5782 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5783 else
5784 ie_len = 0;
5785
f9f47529
JB		 5786 if (ie_len > wiphy->max_scan_ie_len) {
5787 err = -EINVAL;
5788 goto unlock;
5789 }
18a83659 5790
2a519311 5791 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5792 + sizeof(*request->ssids) * n_ssids
5793 + sizeof(*request->channels) * n_channels
70692ad2 5794 + ie_len, GFP_KERNEL);
f9f47529
JB		 5795 if (!request) {
5796 err = -ENOMEM;
5797 goto unlock;
5798 }
2a519311 5799
2a519311 5800 if (n_ssids)
5ba63533 5801 request->ssids = (void *)&request->channels[n_channels];
2a519311 5802 request->n_ssids = n_ssids;
70692ad2 5803 if (ie_len) {
13874e4b 5804 if (n_ssids)
70692ad2
JM		 5805 request->ie = (void *)(request->ssids + n_ssids);
5806 else
5807 request->ie = (void *)(request->channels + n_channels);
5808 }
2a519311 5809
584991dc 5810 i = 0;
2a519311
JB		 5811 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5812 /* user specified, bail out if channel not found */
2a519311 5813 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5814 struct ieee80211_channel *chan;
5815
5816 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5817
5818 if (!chan) {
2a519311
JB		 5819 err = -EINVAL;
5820 goto out_free;
5821 }
584991dc
JB		 5822
5823 /* ignore disabled channels */
5824 if (chan->flags & IEEE80211_CHAN_DISABLED)
5825 continue;
5826
5827 request->channels[i] = chan;
2a519311
JB		 5828 i++;
5829 }
5830 } else {
34850ab2
JB		 5831 enum ieee80211_band band;
5832
2a519311 5833 /* all channels */
2a519311
JB		 5834 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5835 int j;
5836 if (!wiphy->bands[band])
5837 continue;
5838 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5839 struct ieee80211_channel *chan;
5840
5841 chan = &wiphy->bands[band]->channels[j];
5842
5843 if (chan->flags & IEEE80211_CHAN_DISABLED)
5844 continue;
5845
5846 request->channels[i] = chan;
2a519311
JB		 5847 i++;
5848 }
5849 }
5850 }
5851
584991dc
JB		 5852 if (!i) {
5853 err = -EINVAL;
5854 goto out_free;
5855 }
5856
5857 request->n_channels = i;
5858
2a519311 5859 i = 0;
13874e4b 5860 if (n_ssids) {
2a519311 5861 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5862 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5863 err = -EINVAL;
5864 goto out_free;
5865 }
57a27e1d 5866 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5867 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5868 i++;
5869 }
5870 }
5871
70692ad2
JM		 5872 if (info->attrs[NL80211_ATTR_IE]) {
5873 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5874 memcpy((void *)request->ie,
5875 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5876 request->ie_len);
5877 }
5878
34850ab2 5879 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5880 if (wiphy->bands[i])
5881 request->rates[i] =
5882 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5883
5884 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5885 nla_for_each_nested(attr,
5886 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5887 tmp) {
5888 enum ieee80211_band band = nla_type(attr);
5889
84404623 5890 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5891 err = -EINVAL;
5892 goto out_free;
5893 }
1b09cd82
FF		 5894
5895 if (!wiphy->bands[band])
5896 continue;
5897
34850ab2
JB		 5898 err = ieee80211_get_ratemask(wiphy->bands[band],
5899 nla_data(attr),
5900 nla_len(attr),
5901 &request->rates[band]);
5902 if (err)
5903 goto out_free;
5904 }
5905 }
5906
46856bbf 5907 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5908 request->flags = nla_get_u32(
5909 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5910 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5911 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5912 err = -EOPNOTSUPP;
5913 goto out_free;
5914 }
ad2b26ab
JB		 5915
5916 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5917 if (!(wiphy->features &
5918 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5919 err = -EOPNOTSUPP;
5920 goto out_free;
5921 }
5922
5923 if (wdev->current_bss) {
5924 err = -EOPNOTSUPP;
5925 goto out_free;
5926 }
5927
5928 err = nl80211_parse_random_mac(info->attrs,
5929 request->mac_addr,
5930 request->mac_addr_mask);
5931 if (err)
5932 goto out_free;
5933 }
46856bbf 5934 }
ed473771 5935
e9f935e3
RM		 5936 request->no_cck =
5937 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5938
fd014284 5939 request->wdev = wdev;
79c97e97 5940 request->wiphy = &rdev->wiphy;
15d6030b 5941 request->scan_start = jiffies;
2a519311 5942
79c97e97 5943 rdev->scan_req = request;
e35e4d28 5944 err = rdev_scan(rdev, request);
2a519311 5945
463d0183 5946 if (!err) {
fd014284
JB		 5947 nl80211_send_scan_start(rdev, wdev);
5948 if (wdev->netdev)
5949 dev_hold(wdev->netdev);
4c476991 5950 } else {
2a519311 5951 out_free:
79c97e97 5952 rdev->scan_req = NULL;
2a519311
JB		 5953 kfree(request);
5954 }
3b85875a 5955
f9f47529 5956 unlock:
2a519311
JB		 5957 return err;
5958}
5959
256da02d 5960static struct cfg80211_sched_scan_request *
ad2b26ab 5961nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5962 struct nlattr **attrs)
807f8a8c
LC		 5963{
5964 struct cfg80211_sched_scan_request *request;
807f8a8c 5965 struct nlattr *attr;
a1f1c21c 5966 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5967 u32 interval;
807f8a8c
LC		 5968 enum ieee80211_band band;
5969 size_t ie_len;
a1f1c21c 5970 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5971 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5972
256da02d
LC		 5973 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5974 return ERR_PTR(-EINVAL);
807f8a8c 5975
256da02d
LC		 5976 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5977 return ERR_PTR(-EINVAL);
bbe6ad6d 5978
256da02d 5979 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5980 if (interval == 0)
256da02d 5981 return ERR_PTR(-EINVAL);
807f8a8c 5982
256da02d 5983 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5984 n_channels = validate_scan_freqs(
256da02d 5985 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5986 if (!n_channels)
256da02d 5987 return ERR_PTR(-EINVAL);
807f8a8c 5988 } else {
bdfbec2d 5989 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5990 }
5991
256da02d
LC		 5992 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5993 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5994 tmp)
5995 n_ssids++;
5996
93b6aa69 5997 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5998 return ERR_PTR(-EINVAL);
807f8a8c 5999
ea73cbce
JB		 6000 /*
6001 * First, count the number of 'real' matchsets. Due to an issue with
6002 * the old implementation, matchsets containing only the RSSI attribute
6003 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6004 * RSSI for all matchsets, rather than their own matchset for reporting
6005 * all APs with a strong RSSI. This is needed to be compatible with
6006 * older userspace that treated a matchset with only the RSSI as the
6007 * global RSSI for all other matchsets - if there are other matchsets.
6008 */
256da02d 6009 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6010 nla_for_each_nested(attr,
256da02d 6011 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6012 tmp) {
6013 struct nlattr *rssi;
6014
6015 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6016 nla_data(attr), nla_len(attr),
6017 nl80211_match_policy);
6018 if (err)
256da02d 6019 return ERR_PTR(err);
ea73cbce
JB		 6020 /* add other standalone attributes here */
6021 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6022 n_match_sets++;
6023 continue;
6024 }
6025 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6026 if (rssi)
6027 default_match_rssi = nla_get_s32(rssi);
6028 }
6029 }
6030
6031 /* However, if there's no other matchset, add the RSSI one */
6032 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6033 n_match_sets = 1;
a1f1c21c
LC		 6034
6035 if (n_match_sets > wiphy->max_match_sets)
256da02d 6036 return ERR_PTR(-EINVAL);
a1f1c21c 6037
256da02d
LC		 6038 if (attrs[NL80211_ATTR_IE])
6039 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6040 else
6041 ie_len = 0;
6042
5a865bad 6043 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6044 return ERR_PTR(-EINVAL);
c10841ca 6045
807f8a8c 6046 request = kzalloc(sizeof(*request)
a2cd43c5 6047 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6048 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 6049 + sizeof(*request->channels) * n_channels
807f8a8c 6050 + ie_len, GFP_KERNEL);
256da02d
LC		 6051 if (!request)
6052 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6053
6054 if (n_ssids)
6055 request->ssids = (void *)&request->channels[n_channels];
6056 request->n_ssids = n_ssids;
6057 if (ie_len) {
13874e4b 6058 if (n_ssids)
807f8a8c
LC		 6059 request->ie = (void *)(request->ssids + n_ssids);
6060 else
6061 request->ie = (void *)(request->channels + n_channels);
6062 }
6063
a1f1c21c
LC		 6064 if (n_match_sets) {
6065 if (request->ie)
6066 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6067 else if (n_ssids)
a1f1c21c
LC		 6068 request->match_sets =
6069 (void *)(request->ssids + n_ssids);
6070 else
6071 request->match_sets =
6072 (void *)(request->channels + n_channels);
6073 }
6074 request->n_match_sets = n_match_sets;
6075
807f8a8c 6076 i = 0;
256da02d 6077 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6078 /* user specified, bail out if channel not found */
6079 nla_for_each_nested(attr,
256da02d 6080 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6081 tmp) {
6082 struct ieee80211_channel *chan;
6083
6084 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6085
6086 if (!chan) {
6087 err = -EINVAL;
6088 goto out_free;
6089 }
6090
6091 /* ignore disabled channels */
6092 if (chan->flags & IEEE80211_CHAN_DISABLED)
6093 continue;
6094
6095 request->channels[i] = chan;
6096 i++;
6097 }
6098 } else {
6099 /* all channels */
6100 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6101 int j;
6102 if (!wiphy->bands[band])
6103 continue;
6104 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6105 struct ieee80211_channel *chan;
6106
6107 chan = &wiphy->bands[band]->channels[j];
6108
6109 if (chan->flags & IEEE80211_CHAN_DISABLED)
6110 continue;
6111
6112 request->channels[i] = chan;
6113 i++;
6114 }
6115 }
6116 }
6117
6118 if (!i) {
6119 err = -EINVAL;
6120 goto out_free;
6121 }
6122
6123 request->n_channels = i;
6124
6125 i = 0;
13874e4b 6126 if (n_ssids) {
256da02d 6127 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6128 tmp) {
57a27e1d 6129 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6130 err = -EINVAL;
6131 goto out_free;
6132 }
57a27e1d 6133 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6134 memcpy(request->ssids[i].ssid, nla_data(attr),
6135 nla_len(attr));
807f8a8c
LC		 6136 i++;
6137 }
6138 }
6139
a1f1c21c 6140 i = 0;
256da02d 6141 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6142 nla_for_each_nested(attr,
256da02d 6143 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6144 tmp) {
88e920b4 6145 struct nlattr *ssid, *rssi;
a1f1c21c 6146
ae811e21
JB		 6147 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6148 nla_data(attr), nla_len(attr),
6149 nl80211_match_policy);
6150 if (err)
6151 goto out_free;
4a4ab0d7 6152 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6153 if (ssid) {
ea73cbce
JB		 6154 if (WARN_ON(i >= n_match_sets)) {
6155 /* this indicates a programming error,
6156 * the loop above should have verified
6157 * things properly
6158 */
6159 err = -EINVAL;
6160 goto out_free;
6161 }
6162
a1f1c21c
LC		 6163 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6164 err = -EINVAL;
6165 goto out_free;
6166 }
6167 memcpy(request->match_sets[i].ssid.ssid,
6168 nla_data(ssid), nla_len(ssid));
6169 request->match_sets[i].ssid.ssid_len =
6170 nla_len(ssid);
ea73cbce
JB		 6171 /* special attribute - old implemenation w/a */
6172 request->match_sets[i].rssi_thold =
6173 default_match_rssi;
6174 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6175 if (rssi)
6176 request->match_sets[i].rssi_thold =
6177 nla_get_s32(rssi);
a1f1c21c
LC		 6178 }
6179 i++;
6180 }
ea73cbce
JB		 6181
6182 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6183 if (i == 0 && n_match_sets)
ea73cbce
JB		 6184 request->match_sets[0].rssi_thold = default_match_rssi;
6185
6186 request->min_rssi_thold = INT_MAX;
6187 for (i = 0; i < n_match_sets; i++)
6188 request->min_rssi_thold =
6189 min(request->match_sets[i].rssi_thold,
6190 request->min_rssi_thold);
6191 } else {
6192 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6193 }
6194
9900e484
JB		 6195 if (ie_len) {
6196 request->ie_len = ie_len;
807f8a8c 6197 memcpy((void *)request->ie,
256da02d 6198 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6199 request->ie_len);
6200 }
6201
256da02d 6202 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6203 request->flags = nla_get_u32(
256da02d 6204 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6205 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6206 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6207 err = -EOPNOTSUPP;
6208 goto out_free;
6209 }
ad2b26ab
JB		 6210
6211 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6212 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6213
6214 if (!wdev) /* must be net-detect */
6215 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6216
6217 if (!(wiphy->features & flg)) {
6218 err = -EOPNOTSUPP;
6219 goto out_free;
6220 }
6221
6222 if (wdev && wdev->current_bss) {
6223 err = -EOPNOTSUPP;
6224 goto out_free;
6225 }
6226
6227 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6228 request->mac_addr_mask);
6229 if (err)
6230 goto out_free;
6231 }
46856bbf 6232 }
ed473771 6233
9c748934
LC		 6234 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6235 request->delay =
6236 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6237
bbe6ad6d 6238 request->interval = interval;
15d6030b 6239 request->scan_start = jiffies;
807f8a8c 6240
256da02d 6241 return request;
807f8a8c
LC		 6242
6243out_free:
6244 kfree(request);
256da02d
LC		 6245 return ERR_PTR(err);
6246}
6247
6248static int nl80211_start_sched_scan(struct sk_buff *skb,
6249 struct genl_info *info)
6250{
6251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6252 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6253 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6254 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6255 int err;
6256
6257 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6258 !rdev->ops->sched_scan_start)
6259 return -EOPNOTSUPP;
6260
6261 if (rdev->sched_scan_req)
6262 return -EINPROGRESS;
6263
31a60ed1
JR		 6264 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6265 info->attrs);
6266
6267 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6268 if (err)
6269 goto out_err;
6270
31a60ed1 6271 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6272 if (err)
6273 goto out_free;
6274
31a60ed1
JR		 6275 sched_scan_req->dev = dev;
6276 sched_scan_req->wiphy = &rdev->wiphy;
6277
93a1e86c
JR		 6278 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6279 sched_scan_req->owner_nlportid = info->snd_portid;
6280
31a60ed1 6281 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6282
6283 nl80211_send_sched_scan(rdev, dev,
6284 NL80211_CMD_START_SCHED_SCAN);
6285 return 0;
6286
6287out_free:
31a60ed1 6288 kfree(sched_scan_req);
256da02d 6289out_err:
807f8a8c
LC		 6290 return err;
6291}
6292
6293static int nl80211_stop_sched_scan(struct sk_buff *skb,
6294 struct genl_info *info)
6295{
6296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6297
6298 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6299 !rdev->ops->sched_scan_stop)
6300 return -EOPNOTSUPP;
6301
5fe231e8 6302 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6303}
6304
04f39047
SW		 6305static int nl80211_start_radar_detection(struct sk_buff *skb,
6306 struct genl_info *info)
6307{
6308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6309 struct net_device *dev = info->user_ptr[1];
6310 struct wireless_dev *wdev = dev->ieee80211_ptr;
6311 struct cfg80211_chan_def chandef;
55f7435c 6312 enum nl80211_dfs_regions dfs_region;
31559f35 6313 unsigned int cac_time_ms;
04f39047
SW		 6314 int err;
6315
55f7435c
LR		 6316 dfs_region = reg_get_dfs_region(wdev->wiphy);
6317 if (dfs_region == NL80211_DFS_UNSET)
6318 return -EINVAL;
6319
04f39047
SW		 6320 err = nl80211_parse_chandef(rdev, info, &chandef);
6321 if (err)
6322 return err;
6323
ff311bc1
SW		 6324 if (netif_carrier_ok(dev))
6325 return -EBUSY;
6326
04f39047
SW		 6327 if (wdev->cac_started)
6328 return -EBUSY;
6329
2beb6dab 6330 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6331 wdev->iftype);
04f39047
SW		 6332 if (err < 0)
6333 return err;
6334
6335 if (err == 0)
6336 return -EINVAL;
6337
fe7c3a1f 6338 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6339 return -EINVAL;
6340
6341 if (!rdev->ops->start_radar_detection)
6342 return -EOPNOTSUPP;
6343
31559f35
JD		 6344 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6345 if (WARN_ON(!cac_time_ms))
6346 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6347
6348 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6349 cac_time_ms);
04f39047 6350 if (!err) {
9e0e2961 6351 wdev->chandef = chandef;
04f39047
SW		 6352 wdev->cac_started = true;
6353 wdev->cac_start_time = jiffies;
31559f35 6354 wdev->cac_time_ms = cac_time_ms;
04f39047 6355 }
04f39047
SW		 6356 return err;
6357}
6358
16ef1fe2
SW		 6359static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6360{
6361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6362 struct net_device *dev = info->user_ptr[1];
6363 struct wireless_dev *wdev = dev->ieee80211_ptr;
6364 struct cfg80211_csa_settings params;
6365 /* csa_attrs is defined static to avoid waste of stack size - this
6366 * function is called under RTNL lock, so this should not be a problem.
6367 */
6368 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6369 int err;
ee4bc9e7 6370 bool need_new_beacon = false;
9a774c78 6371 int len, i;
252e07ca 6372 u32 cs_count;
16ef1fe2
SW		 6373
6374 if (!rdev->ops->channel_switch ||
6375 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6376 return -EOPNOTSUPP;
6377
ee4bc9e7
SW		 6378 switch (dev->ieee80211_ptr->iftype) {
6379 case NL80211_IFTYPE_AP:
6380 case NL80211_IFTYPE_P2P_GO:
6381 need_new_beacon = true;
6382
6383 /* useless if AP is not running */
6384 if (!wdev->beacon_interval)
1ff79dfa 6385 return -ENOTCONN;
ee4bc9e7
SW		 6386 break;
6387 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6388 if (!wdev->ssid_len)
6389 return -ENOTCONN;
6390 break;
c6da674a 6391 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6392 if (!wdev->mesh_id_len)
6393 return -ENOTCONN;
ee4bc9e7
SW		 6394 break;
6395 default:
16ef1fe2 6396 return -EOPNOTSUPP;
ee4bc9e7 6397 }
16ef1fe2
SW		 6398
6399 memset(&params, 0, sizeof(params));
6400
6401 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6402 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6403 return -EINVAL;
6404
6405 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6406 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6407 return -EINVAL;
6408
252e07ca
LC		 6409 /* Even though the attribute is u32, the specification says
6410 * u8, so let's make sure we don't overflow.
6411 */
6412 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6413 if (cs_count > 255)
6414 return -EINVAL;
6415
6416 params.count = cs_count;
16ef1fe2 6417
ee4bc9e7
SW		 6418 if (!need_new_beacon)
6419 goto skip_beacons;
6420
16ef1fe2
SW		 6421 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6422 if (err)
6423 return err;
6424
6425 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6426 info->attrs[NL80211_ATTR_CSA_IES],
6427 nl80211_policy);
6428 if (err)
6429 return err;
6430
6431 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6432 if (err)
6433 return err;
6434
6435 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6436 return -EINVAL;
6437
9a774c78
AO		 6438 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6439 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6440 return -EINVAL;
6441
9a774c78
AO		 6442 params.n_counter_offsets_beacon = len / sizeof(u16);
6443 if (rdev->wiphy.max_num_csa_counters &&
6444 (params.n_counter_offsets_beacon >
6445 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6446 return -EINVAL;
6447
9a774c78
AO		 6448 params.counter_offsets_beacon =
6449 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6450
6451 /* sanity checks - counters should fit and be the same */
6452 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6453 u16 offset = params.counter_offsets_beacon[i];
6454
6455 if (offset >= params.beacon_csa.tail_len)
6456 return -EINVAL;
6457
6458 if (params.beacon_csa.tail[offset] != params.count)
6459 return -EINVAL;
6460 }
6461
16ef1fe2 6462 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6463 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6464 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6465 return -EINVAL;
6466
9a774c78
AO		 6467 params.n_counter_offsets_presp = len / sizeof(u16);
6468 if (rdev->wiphy.max_num_csa_counters &&
6469 (params.n_counter_offsets_beacon >
6470 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6471 return -EINVAL;
9a774c78
AO		 6472
6473 params.counter_offsets_presp =
6474 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6475
6476 /* sanity checks - counters should fit and be the same */
6477 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6478 u16 offset = params.counter_offsets_presp[i];
6479
6480 if (offset >= params.beacon_csa.probe_resp_len)
6481 return -EINVAL;
6482
6483 if (params.beacon_csa.probe_resp[offset] !=
6484 params.count)
6485 return -EINVAL;
6486 }
16ef1fe2
SW		 6487 }
6488
ee4bc9e7 6489skip_beacons:
16ef1fe2
SW		 6490 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6491 if (err)
6492 return err;
6493
174e0cd2
IP		 6494 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6495 wdev->iftype))
16ef1fe2
SW		 6496 return -EINVAL;
6497
2beb6dab
LC		 6498 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6499 &params.chandef,
6500 wdev->iftype);
6501 if (err < 0)
6502 return err;
6503
dcc6c2f5 6504 if (err > 0)
2beb6dab 6505 params.radar_required = true;
16ef1fe2 6506
16ef1fe2
SW		 6507 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6508 params.block_tx = true;
6509
c56589ed
SW		 6510 wdev_lock(wdev);
6511 err = rdev_channel_switch(rdev, dev, &params);
6512 wdev_unlock(wdev);
6513
6514 return err;
16ef1fe2
SW		 6515}
6516
9720bb3a
JB		 6517static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6518 u32 seq, int flags,
2a519311 6519 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6520 struct wireless_dev *wdev,
6521 struct cfg80211_internal_bss *intbss)
2a519311 6522{
48ab905d 6523 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6524 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6525 void *hdr;
6526 struct nlattr *bss;
48ab905d
JB		 6527
6528 ASSERT_WDEV_LOCK(wdev);
2a519311 6529
15e47304 6530 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6531 NL80211_CMD_NEW_SCAN_RESULTS);
6532 if (!hdr)
6533 return -1;
6534
9720bb3a
JB		 6535 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6536
97990a06
JB		 6537 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6538 goto nla_put_failure;
6539 if (wdev->netdev &&
9360ffd1
DM		 6540 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6541 goto nla_put_failure;
97990a06
JB		 6542 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6543 goto nla_put_failure;
2a519311
JB		 6544
6545 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6546 if (!bss)
6547 goto nla_put_failure;
9360ffd1 6548 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6549 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6550 goto nla_put_failure;
9caf0364
JB		 6551
6552 rcu_read_lock();
0e227084
JB		 6553 /* indicate whether we have probe response data or not */
6554 if (rcu_access_pointer(res->proberesp_ies) &&
6555 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6556 goto fail_unlock_rcu;
6557
6558 /* this pointer prefers to be pointed to probe response data
6559 * but is always valid
6560 */
9caf0364 6561 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6562 if (ies) {
6563 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6564 goto fail_unlock_rcu;
8cef2c9d
JB		 6565 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6566 ies->len, ies->data))
6567 goto fail_unlock_rcu;
9caf0364 6568 }
0e227084
JB		 6569
6570 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6571 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6572 if (ies && ies->from_beacon) {
6573 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6574 goto fail_unlock_rcu;
6575 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6576 ies->len, ies->data))
6577 goto fail_unlock_rcu;
9caf0364
JB		 6578 }
6579 rcu_read_unlock();
6580
9360ffd1
DM		 6581 if (res->beacon_interval &&
6582 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6583 goto nla_put_failure;
6584 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6585 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6586 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6587 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6588 jiffies_to_msecs(jiffies - intbss->ts)))
6589 goto nla_put_failure;
2a519311 6590
77965c97 6591 switch (rdev->wiphy.signal_type) {
2a519311 6592 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6593 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6594 goto nla_put_failure;
2a519311
JB		 6595 break;
6596 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6597 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6598 goto nla_put_failure;
2a519311
JB		 6599 break;
6600 default:
6601 break;
6602 }
6603
48ab905d 6604 switch (wdev->iftype) {
074ac8df 6605 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6606 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6607 if (intbss == wdev->current_bss &&
6608 nla_put_u32(msg, NL80211_BSS_STATUS,
6609 NL80211_BSS_STATUS_ASSOCIATED))
6610 goto nla_put_failure;
48ab905d
JB		 6611 break;
6612 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6613 if (intbss == wdev->current_bss &&
6614 nla_put_u32(msg, NL80211_BSS_STATUS,
6615 NL80211_BSS_STATUS_IBSS_JOINED))
6616 goto nla_put_failure;
48ab905d
JB		 6617 break;
6618 default:
6619 break;
6620 }
6621
2a519311
JB		 6622 nla_nest_end(msg, bss);
6623
053c095a
JB		 6624 genlmsg_end(msg, hdr);
6625 return 0;
2a519311 6626
8cef2c9d
JB		 6627 fail_unlock_rcu:
6628 rcu_read_unlock();
2a519311
JB		 6629 nla_put_failure:
6630 genlmsg_cancel(msg, hdr);
6631 return -EMSGSIZE;
6632}
6633
97990a06 6634static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6635{
48ab905d 6636 struct cfg80211_registered_device *rdev;
2a519311 6637 struct cfg80211_internal_bss *scan;
48ab905d 6638 struct wireless_dev *wdev;
97990a06 6639 int start = cb->args[2], idx = 0;
2a519311
JB		 6640 int err;
6641
97990a06 6642 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6643 if (err)
6644 return err;
2a519311 6645
48ab905d
JB		 6646 wdev_lock(wdev);
6647 spin_lock_bh(&rdev->bss_lock);
6648 cfg80211_bss_expire(rdev);
6649
9720bb3a
JB		 6650 cb->seq = rdev->bss_generation;
6651
48ab905d 6652 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6653 if (++idx <= start)
6654 continue;
9720bb3a 6655 if (nl80211_send_bss(skb, cb,
2a519311 6656 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6657 rdev, wdev, scan) < 0) {
2a519311 6658 idx--;
67748893 6659 break;
2a519311
JB		 6660 }
6661 }
6662
48ab905d
JB		 6663 spin_unlock_bh(&rdev->bss_lock);
6664 wdev_unlock(wdev);
2a519311 6665
97990a06
JB		 6666 cb->args[2] = idx;
6667 nl80211_finish_wdev_dump(rdev);
2a519311 6668
67748893 6669 return skb->len;
2a519311
JB		 6670}
6671
15e47304 6672static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6673 int flags, struct net_device *dev,
6674 bool allow_radio_stats,
6675 struct survey_info *survey)
61fa713c
HS		 6676{
6677 void *hdr;
6678 struct nlattr *infoattr;
6679
11f78ac3
JB		 6680 /* skip radio stats if userspace didn't request them */
6681 if (!survey->channel && !allow_radio_stats)
6682 return 0;
6683
15e47304 6684 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6685 NL80211_CMD_NEW_SURVEY_RESULTS);
6686 if (!hdr)
6687 return -ENOMEM;
6688
9360ffd1
DM		 6689 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6690 goto nla_put_failure;
61fa713c
HS		 6691
6692 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6693 if (!infoattr)
6694 goto nla_put_failure;
6695
11f78ac3
JB		 6696 if (survey->channel &&
6697 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6698 survey->channel->center_freq))
6699 goto nla_put_failure;
6700
6701 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6702 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6703 goto nla_put_failure;
6704 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6705 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6706 goto nla_put_failure;
4ed20beb
JB		 6707 if ((survey->filled & SURVEY_INFO_TIME) &&
6708 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6709 survey->time))
9360ffd1 6710 goto nla_put_failure;
4ed20beb
JB		 6711 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6712 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6713 survey->time_busy))
9360ffd1 6714 goto nla_put_failure;
4ed20beb
JB		 6715 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6716 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6717 survey->time_ext_busy))
9360ffd1 6718 goto nla_put_failure;
4ed20beb
JB		 6719 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6720 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6721 survey->time_rx))
9360ffd1 6722 goto nla_put_failure;
4ed20beb
JB		 6723 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6724 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6725 survey->time_tx))
9360ffd1 6726 goto nla_put_failure;
052536ab
JB		 6727 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6728 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6729 survey->time_scan))
6730 goto nla_put_failure;
61fa713c
HS		 6731
6732 nla_nest_end(msg, infoattr);
6733
053c095a
JB		 6734 genlmsg_end(msg, hdr);
6735 return 0;
61fa713c
HS		 6736
6737 nla_put_failure:
6738 genlmsg_cancel(msg, hdr);
6739 return -EMSGSIZE;
6740}
6741
11f78ac3 6742static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6743{
6744 struct survey_info survey;
1b8ec87a 6745 struct cfg80211_registered_device *rdev;
97990a06
JB		 6746 struct wireless_dev *wdev;
6747 int survey_idx = cb->args[2];
61fa713c 6748 int res;
11f78ac3 6749 bool radio_stats;
61fa713c 6750
1b8ec87a 6751 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6752 if (res)
6753 return res;
61fa713c 6754
11f78ac3
JB		 6755 /* prepare_wdev_dump parsed the attributes */
6756 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6757
97990a06
JB		 6758 if (!wdev->netdev) {
6759 res = -EINVAL;
6760 goto out_err;
6761 }
6762
1b8ec87a 6763 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6764 res = -EOPNOTSUPP;
6765 goto out_err;
6766 }
6767
6768 while (1) {
1b8ec87a 6769 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6770 if (res == -ENOENT)
6771 break;
6772 if (res)
6773 goto out_err;
6774
11f78ac3
JB		 6775 /* don't send disabled channels, but do send non-channel data */
6776 if (survey.channel &&
6777 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6778 survey_idx++;
6779 continue;
6780 }
6781
61fa713c 6782 if (nl80211_send_survey(skb,
15e47304 6783 NETLINK_CB(cb->skb).portid,
61fa713c 6784 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6785 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6786 goto out;
6787 survey_idx++;
6788 }
6789
6790 out:
97990a06 6791 cb->args[2] = survey_idx;
61fa713c
HS		 6792 res = skb->len;
6793 out_err:
1b8ec87a 6794 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6795 return res;
6796}
6797
b23aa676
SO		 6798static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6799{
6800 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6801 NL80211_WPA_VERSION_2));
6802}
6803
636a5d36
JM		 6804static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6805{
4c476991
JB		 6806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6807 struct net_device *dev = info->user_ptr[1];
19957bb3 6808 struct ieee80211_channel *chan;
e39e5b5e
JM		 6809 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6810 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6811 enum nl80211_auth_type auth_type;
fffd0934 6812 struct key_parse key;
d5cdfacb 6813 bool local_state_change;
636a5d36 6814
f4a11bb0
JB		 6815 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6816 return -EINVAL;
6817
6818 if (!info->attrs[NL80211_ATTR_MAC])
6819 return -EINVAL;
6820
1778092e
JM		 6821 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6822 return -EINVAL;
6823
19957bb3
JB		 6824 if (!info->attrs[NL80211_ATTR_SSID])
6825 return -EINVAL;
6826
6827 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6828 return -EINVAL;
6829
fffd0934
JB		 6830 err = nl80211_parse_key(info, &key);
6831 if (err)
6832 return err;
6833
6834 if (key.idx >= 0) {
e31b8213
JB		 6835 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6836 return -EINVAL;
fffd0934
JB		 6837 if (!key.p.key || !key.p.key_len)
6838 return -EINVAL;
6839 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6840 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6841 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6842 key.p.key_len != WLAN_KEY_LEN_WEP104))
6843 return -EINVAL;
6844 if (key.idx > 4)
6845 return -EINVAL;
6846 } else {
6847 key.p.key_len = 0;
6848 key.p.key = NULL;
6849 }
6850
afea0b7a
JB		 6851 if (key.idx >= 0) {
6852 int i;
6853 bool ok = false;
6854 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6855 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6856 ok = true;
6857 break;
6858 }
6859 }
4c476991
JB		 6860 if (!ok)
6861 return -EINVAL;
afea0b7a
JB		 6862 }
6863
4c476991
JB		 6864 if (!rdev->ops->auth)
6865 return -EOPNOTSUPP;
636a5d36 6866
074ac8df 6867 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6868 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6869 return -EOPNOTSUPP;
eec60b03 6870
19957bb3 6871 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6872 chan = nl80211_get_valid_chan(&rdev->wiphy,
6873 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6874 if (!chan)
4c476991 6875 return -EINVAL;
636a5d36 6876
19957bb3
JB		 6877 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6878 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6879
6880 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6881 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6882 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6883 }
6884
19957bb3 6885 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6886 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6887 return -EINVAL;
636a5d36 6888
e39e5b5e
JM		 6889 if (auth_type == NL80211_AUTHTYPE_SAE &&
6890 !info->attrs[NL80211_ATTR_SAE_DATA])
6891 return -EINVAL;
6892
6893 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6894 if (auth_type != NL80211_AUTHTYPE_SAE)
6895 return -EINVAL;
6896 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6897 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6898 /* need to include at least Auth Transaction and Status Code */
6899 if (sae_data_len < 4)
6900 return -EINVAL;
6901 }
6902
d5cdfacb
JM		 6903 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6904
95de817b
JB		 6905 /*
6906 * Since we no longer track auth state, ignore
6907 * requests to only change local state.
6908 */
6909 if (local_state_change)
6910 return 0;
6911
91bf9b26
JB		 6912 wdev_lock(dev->ieee80211_ptr);
6913 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6914 ssid, ssid_len, ie, ie_len,
6915 key.p.key, key.p.key_len, key.idx,
6916 sae_data, sae_data_len);
6917 wdev_unlock(dev->ieee80211_ptr);
6918 return err;
636a5d36
JM		 6919}
6920
c0692b8f
JB		 6921static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6922 struct genl_info *info,
3dc27d25
JB		 6923 struct cfg80211_crypto_settings *settings,
6924 int cipher_limit)
b23aa676 6925{
c0b2bbd8
JB		 6926 memset(settings, 0, sizeof(*settings));
6927
b23aa676
SO		 6928 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6929
c0692b8f
JB		 6930 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6931 u16 proto;
6932 proto = nla_get_u16(
6933 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6934 settings->control_port_ethertype = cpu_to_be16(proto);
6935 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6936 proto != ETH_P_PAE)
6937 return -EINVAL;
6938 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6939 settings->control_port_no_encrypt = true;
6940 } else
6941 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6942
b23aa676
SO		 6943 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6944 void *data;
6945 int len, i;
6946
6947 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6948 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6949 settings->n_ciphers_pairwise = len / sizeof(u32);
6950
6951 if (len % sizeof(u32))
6952 return -EINVAL;
6953
3dc27d25 6954 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6955 return -EINVAL;
6956
6957 memcpy(settings->ciphers_pairwise, data, len);
6958
6959 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6960 if (!cfg80211_supported_cipher_suite(
6961 &rdev->wiphy,
b23aa676
SO		 6962 settings->ciphers_pairwise[i]))
6963 return -EINVAL;
6964 }
6965
6966 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6967 settings->cipher_group =
6968 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6969 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6970 settings->cipher_group))
b23aa676
SO		 6971 return -EINVAL;
6972 }
6973
6974 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6975 settings->wpa_versions =
6976 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6977 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6978 return -EINVAL;
6979 }
6980
6981 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6982 void *data;
6d30240e 6983 int len;
b23aa676
SO		 6984
6985 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6986 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6987 settings->n_akm_suites = len / sizeof(u32);
6988
6989 if (len % sizeof(u32))
6990 return -EINVAL;
6991
1b9ca027
JM		 6992 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6993 return -EINVAL;
6994
b23aa676 6995 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6996 }
6997
6998 return 0;
6999}
7000
636a5d36
JM		 7001static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7002{
4c476991
JB		 7003 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7004 struct net_device *dev = info->user_ptr[1];
f444de05 7005 struct ieee80211_channel *chan;
f62fab73
JB		 7006 struct cfg80211_assoc_request req = {};
7007 const u8 *bssid, *ssid;
7008 int err, ssid_len = 0;
636a5d36 7009
f4a11bb0
JB		 7010 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7011 return -EINVAL;
7012
7013 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7014 !info->attrs[NL80211_ATTR_SSID] ||
7015 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7016 return -EINVAL;
7017
4c476991
JB		 7018 if (!rdev->ops->assoc)
7019 return -EOPNOTSUPP;
636a5d36 7020
074ac8df 7021 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7022 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7023 return -EOPNOTSUPP;
eec60b03 7024
19957bb3 7025 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7026
664834de
JM		 7027 chan = nl80211_get_valid_chan(&rdev->wiphy,
7028 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7029 if (!chan)
4c476991 7030 return -EINVAL;
636a5d36 7031
19957bb3
JB		 7032 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7033 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7034
7035 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7036 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7037 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7038 }
7039
dc6382ce 7040 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7041 enum nl80211_mfp mfp =
dc6382ce 7042 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7043 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7044 req.use_mfp = true;
4c476991
JB		 7045 else if (mfp != NL80211_MFP_NO)
7046 return -EINVAL;
dc6382ce
JM		 7047 }
7048
3e5d7649 7049 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7050 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7051
7e7c8926 7052 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7053 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7054
7055 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7056 memcpy(&req.ht_capa_mask,
7057 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7058 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7059
7060 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7061 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7062 return -EINVAL;
f62fab73
JB		 7063 memcpy(&req.ht_capa,
7064 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7065 sizeof(req.ht_capa));
7e7c8926
BG		 7066 }
7067
ee2aca34 7068 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7069 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7070
7071 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7072 memcpy(&req.vht_capa_mask,
7073 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7074 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7075
7076 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7077 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7078 return -EINVAL;
f62fab73
JB		 7079 memcpy(&req.vht_capa,
7080 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7081 sizeof(req.vht_capa));
ee2aca34
JB		 7082 }
7083
bab5ab7d
AK		 7084 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7085 if (!(rdev->wiphy.features &
7086 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7087 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7088 return -EINVAL;
7089 req.flags |= ASSOC_REQ_USE_RRM;
7090 }
7091
f62fab73 7092 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7093 if (!err) {
7094 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7095 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7096 ssid, ssid_len, &req);
91bf9b26
JB		 7097 wdev_unlock(dev->ieee80211_ptr);
7098 }
636a5d36 7099
636a5d36
JM		 7100 return err;
7101}
7102
7103static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7104{
4c476991
JB		 7105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7106 struct net_device *dev = info->user_ptr[1];
19957bb3 7107 const u8 *ie = NULL, *bssid;
91bf9b26 7108 int ie_len = 0, err;
19957bb3 7109 u16 reason_code;
d5cdfacb 7110 bool local_state_change;
636a5d36 7111
f4a11bb0
JB		 7112 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7113 return -EINVAL;
7114
7115 if (!info->attrs[NL80211_ATTR_MAC])
7116 return -EINVAL;
7117
7118 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7119 return -EINVAL;
7120
4c476991
JB		 7121 if (!rdev->ops->deauth)
7122 return -EOPNOTSUPP;
636a5d36 7123
074ac8df 7124 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7125 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7126 return -EOPNOTSUPP;
eec60b03 7127
19957bb3 7128 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7129
19957bb3
JB		 7130 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7131 if (reason_code == 0) {
f4a11bb0 7132 /* Reason Code 0 is reserved */
4c476991 7133 return -EINVAL;
255e737e 7134 }
636a5d36
JM		 7135
7136 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7137 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7138 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7139 }
7140
d5cdfacb
JM		 7141 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7142
91bf9b26
JB		 7143 wdev_lock(dev->ieee80211_ptr);
7144 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7145 local_state_change);
7146 wdev_unlock(dev->ieee80211_ptr);
7147 return err;
636a5d36
JM		 7148}
7149
7150static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7151{
4c476991
JB		 7152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7153 struct net_device *dev = info->user_ptr[1];
19957bb3 7154 const u8 *ie = NULL, *bssid;
91bf9b26 7155 int ie_len = 0, err;
19957bb3 7156 u16 reason_code;
d5cdfacb 7157 bool local_state_change;
636a5d36 7158
f4a11bb0
JB		 7159 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7160 return -EINVAL;
7161
7162 if (!info->attrs[NL80211_ATTR_MAC])
7163 return -EINVAL;
7164
7165 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7166 return -EINVAL;
7167
4c476991
JB		 7168 if (!rdev->ops->disassoc)
7169 return -EOPNOTSUPP;
636a5d36 7170
074ac8df 7171 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7172 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7173 return -EOPNOTSUPP;
eec60b03 7174
19957bb3 7175 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7176
19957bb3
JB		 7177 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7178 if (reason_code == 0) {
f4a11bb0 7179 /* Reason Code 0 is reserved */
4c476991 7180 return -EINVAL;
255e737e 7181 }
636a5d36
JM		 7182
7183 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7184 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7185 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7186 }
7187
d5cdfacb
JM		 7188 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7189
91bf9b26
JB		 7190 wdev_lock(dev->ieee80211_ptr);
7191 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7192 local_state_change);
7193 wdev_unlock(dev->ieee80211_ptr);
7194 return err;
636a5d36
JM		 7195}
7196
dd5b4cc7
FF		 7197static bool
7198nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7199 int mcast_rate[IEEE80211_NUM_BANDS],
7200 int rateval)
7201{
7202 struct wiphy *wiphy = &rdev->wiphy;
7203 bool found = false;
7204 int band, i;
7205
7206 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7207 struct ieee80211_supported_band *sband;
7208
7209 sband = wiphy->bands[band];
7210 if (!sband)
7211 continue;
7212
7213 for (i = 0; i < sband->n_bitrates; i++) {
7214 if (sband->bitrates[i].bitrate == rateval) {
7215 mcast_rate[band] = i + 1;
7216 found = true;
7217 break;
7218 }
7219 }
7220 }
7221
7222 return found;
7223}
7224
04a773ad
JB		 7225static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7226{
4c476991
JB		 7227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7228 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7229 struct cfg80211_ibss_params ibss;
7230 struct wiphy *wiphy;
fffd0934 7231 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7232 int err;
7233
8e30bc55
JB		 7234 memset(&ibss, 0, sizeof(ibss));
7235
04a773ad
JB		 7236 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7237 return -EINVAL;
7238
683b6d3b 7239 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7240 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7241 return -EINVAL;
7242
8e30bc55
JB		 7243 ibss.beacon_interval = 100;
7244
7245 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7246 ibss.beacon_interval =
7247 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7248 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7249 return -EINVAL;
7250 }
7251
4c476991
JB		 7252 if (!rdev->ops->join_ibss)
7253 return -EOPNOTSUPP;
04a773ad 7254
4c476991
JB		 7255 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7256 return -EOPNOTSUPP;
04a773ad 7257
79c97e97 7258 wiphy = &rdev->wiphy;
04a773ad 7259
39193498 7260 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7261 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7262
7263 if (!is_valid_ether_addr(ibss.bssid))
7264 return -EINVAL;
7265 }
04a773ad
JB		 7266 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7267 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7268
7269 if (info->attrs[NL80211_ATTR_IE]) {
7270 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7271 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7272 }
7273
683b6d3b
JB		 7274 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7275 if (err)
7276 return err;
04a773ad 7277
174e0cd2
IP		 7278 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7279 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7280 return -EINVAL;
7281
2f301ab2 7282 switch (ibss.chandef.width) {
bf372645
SW		 7283 case NL80211_CHAN_WIDTH_5:
7284 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7285 case NL80211_CHAN_WIDTH_20_NOHT:
7286 break;
7287 case NL80211_CHAN_WIDTH_20:
7288 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7289 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7290 return -EINVAL;
7291 break;
7292 case NL80211_CHAN_WIDTH_80:
7293 case NL80211_CHAN_WIDTH_80P80:
7294 case NL80211_CHAN_WIDTH_160:
7295 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7296 return -EINVAL;
7297 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7298 NL80211_EXT_FEATURE_VHT_IBSS))
7299 return -EINVAL;
7300 break;
2f301ab2 7301 default:
c04d6150 7302 return -EINVAL;
2f301ab2 7303 }
db9c64cf 7304
04a773ad 7305 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7306 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7307
fbd2c8dc
TP		 7308 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7309 u8 *rates =
7310 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7311 int n_rates =
7312 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7313 struct ieee80211_supported_band *sband =
683b6d3b 7314 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7315
34850ab2
JB		 7316 err = ieee80211_get_ratemask(sband, rates, n_rates,
7317 &ibss.basic_rates);
7318 if (err)
7319 return err;
fbd2c8dc 7320 }
dd5b4cc7 7321
803768f5
SW		 7322 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7323 memcpy(&ibss.ht_capa_mask,
7324 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7325 sizeof(ibss.ht_capa_mask));
7326
7327 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7328 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7329 return -EINVAL;
7330 memcpy(&ibss.ht_capa,
7331 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7332 sizeof(ibss.ht_capa));
7333 }
7334
dd5b4cc7
FF		 7335 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7336 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7337 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7338 return -EINVAL;
fbd2c8dc 7339
4c476991 7340 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7341 bool no_ht = false;
7342
4c476991 7343 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7344 info->attrs[NL80211_ATTR_KEYS],
7345 &no_ht);
4c476991
JB		 7346 if (IS_ERR(connkeys))
7347 return PTR_ERR(connkeys);
de7044ee 7348
3d9d1d66
JB		 7349 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7350 no_ht) {
de7044ee
SM		 7351 kfree(connkeys);
7352 return -EINVAL;
7353 }
4c476991 7354 }
04a773ad 7355
267335d6
AQ		 7356 ibss.control_port =
7357 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7358
5336fa88
SW		 7359 ibss.userspace_handles_dfs =
7360 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7361
4c476991 7362 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7363 if (err)
b47f610b 7364 kzfree(connkeys);
04a773ad
JB		 7365 return err;
7366}
7367
7368static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7369{
4c476991
JB		 7370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7371 struct net_device *dev = info->user_ptr[1];
04a773ad 7372
4c476991
JB		 7373 if (!rdev->ops->leave_ibss)
7374 return -EOPNOTSUPP;
04a773ad 7375
4c476991
JB		 7376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7377 return -EOPNOTSUPP;
04a773ad 7378
4c476991 7379 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7380}
7381
f4e583c8
AQ		 7382static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7383{
7384 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7385 struct net_device *dev = info->user_ptr[1];
7386 int mcast_rate[IEEE80211_NUM_BANDS];
7387 u32 nla_rate;
7388 int err;
7389
7390 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7392 return -EOPNOTSUPP;
7393
7394 if (!rdev->ops->set_mcast_rate)
7395 return -EOPNOTSUPP;
7396
7397 memset(mcast_rate, 0, sizeof(mcast_rate));
7398
7399 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7400 return -EINVAL;
7401
7402 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7403 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7404 return -EINVAL;
7405
7406 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7407
7408 return err;
7409}
7410
ad7e718c
JB		 7411static struct sk_buff *
7412__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7413 struct wireless_dev *wdev, int approxlen,
7414 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7415 enum nl80211_attrs attr,
7416 const struct nl80211_vendor_cmd_info *info,
7417 gfp_t gfp)
ad7e718c
JB		 7418{
7419 struct sk_buff *skb;
7420 void *hdr;
7421 struct nlattr *data;
7422
7423 skb = nlmsg_new(approxlen + 100, gfp);
7424 if (!skb)
7425 return NULL;
7426
7427 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7428 if (!hdr) {
7429 kfree_skb(skb);
7430 return NULL;
7431 }
7432
7433 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7434 goto nla_put_failure;
567ffc35
JB		 7435
7436 if (info) {
7437 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7438 info->vendor_id))
7439 goto nla_put_failure;
7440 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7441 info->subcmd))
7442 goto nla_put_failure;
7443 }
7444
6c09e791
AK		 7445 if (wdev) {
7446 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7447 wdev_id(wdev)))
7448 goto nla_put_failure;
7449 if (wdev->netdev &&
7450 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7451 wdev->netdev->ifindex))
7452 goto nla_put_failure;
7453 }
7454
ad7e718c
JB		 7455 data = nla_nest_start(skb, attr);
7456
7457 ((void **)skb->cb)[0] = rdev;
7458 ((void **)skb->cb)[1] = hdr;
7459 ((void **)skb->cb)[2] = data;
7460
7461 return skb;
7462
7463 nla_put_failure:
7464 kfree_skb(skb);
7465 return NULL;
7466}
f4e583c8 7467
e03ad6ea 7468struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7469 struct wireless_dev *wdev,
e03ad6ea
JB		 7470 enum nl80211_commands cmd,
7471 enum nl80211_attrs attr,
7472 int vendor_event_idx,
7473 int approxlen, gfp_t gfp)
7474{
f26cbf40 7475 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7476 const struct nl80211_vendor_cmd_info *info;
7477
7478 switch (cmd) {
7479 case NL80211_CMD_TESTMODE:
7480 if (WARN_ON(vendor_event_idx != -1))
7481 return NULL;
7482 info = NULL;
7483 break;
7484 case NL80211_CMD_VENDOR:
7485 if (WARN_ON(vendor_event_idx < 0 ||
7486 vendor_event_idx >= wiphy->n_vendor_events))
7487 return NULL;
7488 info = &wiphy->vendor_events[vendor_event_idx];
7489 break;
7490 default:
7491 WARN_ON(1);
7492 return NULL;
7493 }
7494
6c09e791 7495 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7496 cmd, attr, info, gfp);
7497}
7498EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7499
7500void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7501{
7502 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7503 void *hdr = ((void **)skb->cb)[1];
7504 struct nlattr *data = ((void **)skb->cb)[2];
7505 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7506
bd8c78e7
JB		 7507 /* clear CB data for netlink core to own from now on */
7508 memset(skb->cb, 0, sizeof(skb->cb));
7509
e03ad6ea
JB		 7510 nla_nest_end(skb, data);
7511 genlmsg_end(skb, hdr);
7512
7513 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7514 mcgrp = NL80211_MCGRP_VENDOR;
7515
7516 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7517 mcgrp, gfp);
7518}
7519EXPORT_SYMBOL(__cfg80211_send_event_skb);
7520
aff89a9b 7521#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7522static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7523{
4c476991 7524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7525 struct wireless_dev *wdev =
7526 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7527 int err;
7528
fc73f11f
DS		 7529 if (!rdev->ops->testmode_cmd)
7530 return -EOPNOTSUPP;
7531
7532 if (IS_ERR(wdev)) {
7533 err = PTR_ERR(wdev);
7534 if (err != -EINVAL)
7535 return err;
7536 wdev = NULL;
7537 } else if (wdev->wiphy != &rdev->wiphy) {
7538 return -EINVAL;
7539 }
7540
aff89a9b
JB		 7541 if (!info->attrs[NL80211_ATTR_TESTDATA])
7542 return -EINVAL;
7543
ad7e718c 7544 rdev->cur_cmd_info = info;
fc73f11f 7545 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7546 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7547 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7548 rdev->cur_cmd_info = NULL;
aff89a9b 7549
aff89a9b
JB		 7550 return err;
7551}
7552
71063f0e
WYG		 7553static int nl80211_testmode_dump(struct sk_buff *skb,
7554 struct netlink_callback *cb)
7555{
00918d33 7556 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7557 int err;
7558 long phy_idx;
7559 void *data = NULL;
7560 int data_len = 0;
7561
5fe231e8
JB		 7562 rtnl_lock();
7563
71063f0e
WYG		 7564 if (cb->args[0]) {
7565 /*
7566 * 0 is a valid index, but not valid for args[0],
7567 * so we need to offset by 1.
7568 */
7569 phy_idx = cb->args[0] - 1;
7570 } else {
7571 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7572 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7573 nl80211_policy);
7574 if (err)
5fe231e8 7575 goto out_err;
00918d33 7576
2bd7e35d
JB		 7577 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7578 nl80211_fam.attrbuf);
7579 if (IS_ERR(rdev)) {
5fe231e8
JB		 7580 err = PTR_ERR(rdev);
7581 goto out_err;
00918d33 7582 }
2bd7e35d
JB		 7583 phy_idx = rdev->wiphy_idx;
7584 rdev = NULL;
2bd7e35d 7585
71063f0e
WYG		 7586 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7587 cb->args[1] =
7588 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7589 }
7590
7591 if (cb->args[1]) {
7592 data = nla_data((void *)cb->args[1]);
7593 data_len = nla_len((void *)cb->args[1]);
7594 }
7595
00918d33
JB		 7596 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7597 if (!rdev) {
5fe231e8
JB		 7598 err = -ENOENT;
7599 goto out_err;
71063f0e 7600 }
71063f0e 7601
00918d33 7602 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7603 err = -EOPNOTSUPP;
7604 goto out_err;
7605 }
7606
7607 while (1) {
15e47304 7608 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7609 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7610 NL80211_CMD_TESTMODE);
7611 struct nlattr *tmdata;
7612
cb35fba3
DC		 7613 if (!hdr)
7614 break;
7615
9360ffd1 7616 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7617 genlmsg_cancel(skb, hdr);
7618 break;
7619 }
7620
7621 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7622 if (!tmdata) {
7623 genlmsg_cancel(skb, hdr);
7624 break;
7625 }
e35e4d28 7626 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7627 nla_nest_end(skb, tmdata);
7628
7629 if (err == -ENOBUFS || err == -ENOENT) {
7630 genlmsg_cancel(skb, hdr);
7631 break;
7632 } else if (err) {
7633 genlmsg_cancel(skb, hdr);
7634 goto out_err;
7635 }
7636
7637 genlmsg_end(skb, hdr);
7638 }
7639
7640 err = skb->len;
7641 /* see above */
7642 cb->args[0] = phy_idx + 1;
7643 out_err:
5fe231e8 7644 rtnl_unlock();
71063f0e
WYG		 7645 return err;
7646}
aff89a9b
JB		 7647#endif
7648
b23aa676
SO		 7649static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7650{
4c476991
JB		 7651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7652 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7653 struct cfg80211_connect_params connect;
7654 struct wiphy *wiphy;
fffd0934 7655 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7656 int err;
7657
7658 memset(&connect, 0, sizeof(connect));
7659
7660 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7661 return -EINVAL;
7662
7663 if (!info->attrs[NL80211_ATTR_SSID] ||
7664 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7665 return -EINVAL;
7666
7667 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7668 connect.auth_type =
7669 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7670 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7671 NL80211_CMD_CONNECT))
b23aa676
SO		 7672 return -EINVAL;
7673 } else
7674 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7675
7676 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7677
c0692b8f 7678 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7679 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7680 if (err)
7681 return err;
b23aa676 7682
074ac8df 7683 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7684 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7685 return -EOPNOTSUPP;
b23aa676 7686
79c97e97 7687 wiphy = &rdev->wiphy;
b23aa676 7688
4486ea98
BS		 7689 connect.bg_scan_period = -1;
7690 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7691 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7692 connect.bg_scan_period =
7693 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7694 }
7695
b23aa676
SO		 7696 if (info->attrs[NL80211_ATTR_MAC])
7697 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7698 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7699 connect.bssid_hint =
7700 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7701 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7702 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7703
7704 if (info->attrs[NL80211_ATTR_IE]) {
7705 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7706 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7707 }
7708
cee00a95
JM		 7709 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7710 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7711 if (connect.mfp != NL80211_MFP_REQUIRED &&
7712 connect.mfp != NL80211_MFP_NO)
7713 return -EINVAL;
7714 } else {
7715 connect.mfp = NL80211_MFP_NO;
7716 }
7717
b23aa676 7718 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7719 connect.channel = nl80211_get_valid_chan(
7720 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7721 if (!connect.channel)
1df4a510
JM		 7722 return -EINVAL;
7723 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7724 connect.channel_hint = nl80211_get_valid_chan(
7725 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7726 if (!connect.channel_hint)
4c476991 7727 return -EINVAL;
b23aa676
SO		 7728 }
7729
fffd0934
JB		 7730 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7731 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7732 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7733 if (IS_ERR(connkeys))
7734 return PTR_ERR(connkeys);
fffd0934
JB		 7735 }
7736
7e7c8926
BG		 7737 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7738 connect.flags |= ASSOC_REQ_DISABLE_HT;
7739
7740 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7741 memcpy(&connect.ht_capa_mask,
7742 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7743 sizeof(connect.ht_capa_mask));
7744
7745 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7746 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7747 kzfree(connkeys);
7e7c8926 7748 return -EINVAL;
b4e4f47e 7749 }
7e7c8926
BG		 7750 memcpy(&connect.ht_capa,
7751 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7752 sizeof(connect.ht_capa));
7753 }
7754
ee2aca34
JB		 7755 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7756 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7757
7758 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7759 memcpy(&connect.vht_capa_mask,
7760 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7761 sizeof(connect.vht_capa_mask));
7762
7763 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7764 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7765 kzfree(connkeys);
ee2aca34
JB		 7766 return -EINVAL;
7767 }
7768 memcpy(&connect.vht_capa,
7769 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7770 sizeof(connect.vht_capa));
7771 }
7772
bab5ab7d
AK		 7773 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7774 if (!(rdev->wiphy.features &
7775 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7776 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7777 return -EINVAL;
7778 connect.flags |= ASSOC_REQ_USE_RRM;
7779 }
7780
83739b03
JB		 7781 wdev_lock(dev->ieee80211_ptr);
7782 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7783 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7784 if (err)
b47f610b 7785 kzfree(connkeys);
b23aa676
SO		 7786 return err;
7787}
7788
7789static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7790{
4c476991
JB		 7791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7792 struct net_device *dev = info->user_ptr[1];
b23aa676 7793 u16 reason;
83739b03 7794 int ret;
b23aa676
SO		 7795
7796 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7797 reason = WLAN_REASON_DEAUTH_LEAVING;
7798 else
7799 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7800
7801 if (reason == 0)
7802 return -EINVAL;
7803
074ac8df 7804 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7805 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7806 return -EOPNOTSUPP;
b23aa676 7807
83739b03
JB		 7808 wdev_lock(dev->ieee80211_ptr);
7809 ret = cfg80211_disconnect(rdev, dev, reason, true);
7810 wdev_unlock(dev->ieee80211_ptr);
7811 return ret;
b23aa676
SO		 7812}
7813
463d0183
JB		 7814static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7815{
4c476991 7816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7817 struct net *net;
7818 int err;
463d0183 7819
4b681c82
VK		 7820 if (info->attrs[NL80211_ATTR_PID]) {
7821 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7822
7823 net = get_net_ns_by_pid(pid);
7824 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7825 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 7826
4b681c82
VK		 7827 net = get_net_ns_by_fd(fd);
7828 } else {
7829 return -EINVAL;
7830 }
463d0183 7831
4c476991
JB		 7832 if (IS_ERR(net))
7833 return PTR_ERR(net);
463d0183
JB		 7834
7835 err = 0;
7836
7837 /* check if anything to do */
4c476991
JB		 7838 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7839 err = cfg80211_switch_netns(rdev, net);
463d0183 7840
463d0183 7841 put_net(net);
463d0183
JB		 7842 return err;
7843}
7844
67fbb16b
SO		 7845static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7846{
4c476991 7847 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7848 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7849 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7850 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7851 struct cfg80211_pmksa pmksa;
7852
7853 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7854
7855 if (!info->attrs[NL80211_ATTR_MAC])
7856 return -EINVAL;
7857
7858 if (!info->attrs[NL80211_ATTR_PMKID])
7859 return -EINVAL;
7860
67fbb16b
SO		 7861 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7862 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7863
074ac8df 7864 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7865 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7866 return -EOPNOTSUPP;
67fbb16b
SO		 7867
7868 switch (info->genlhdr->cmd) {
7869 case NL80211_CMD_SET_PMKSA:
7870 rdev_ops = rdev->ops->set_pmksa;
7871 break;
7872 case NL80211_CMD_DEL_PMKSA:
7873 rdev_ops = rdev->ops->del_pmksa;
7874 break;
7875 default:
7876 WARN_ON(1);
7877 break;
7878 }
7879
4c476991
JB		 7880 if (!rdev_ops)
7881 return -EOPNOTSUPP;
67fbb16b 7882
4c476991 7883 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7884}
7885
7886static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7887{
4c476991
JB		 7888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7889 struct net_device *dev = info->user_ptr[1];
67fbb16b 7890
074ac8df 7891 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7892 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7893 return -EOPNOTSUPP;
67fbb16b 7894
4c476991
JB		 7895 if (!rdev->ops->flush_pmksa)
7896 return -EOPNOTSUPP;
67fbb16b 7897
e35e4d28 7898 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7899}
7900
109086ce
AN		 7901static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7902{
7903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7904 struct net_device *dev = info->user_ptr[1];
7905 u8 action_code, dialog_token;
df942e7b 7906 u32 peer_capability = 0;
109086ce
AN		 7907 u16 status_code;
7908 u8 *peer;
31fa97c5 7909 bool initiator;
109086ce
AN		 7910
7911 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7912 !rdev->ops->tdls_mgmt)
7913 return -EOPNOTSUPP;
7914
7915 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7916 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7917 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7918 !info->attrs[NL80211_ATTR_IE] ||
7919 !info->attrs[NL80211_ATTR_MAC])
7920 return -EINVAL;
7921
7922 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7923 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7924 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7925 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7926 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7927 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7928 peer_capability =
7929 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7930
e35e4d28 7931 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7932 dialog_token, status_code, peer_capability,
31fa97c5 7933 initiator,
e35e4d28
HG		 7934 nla_data(info->attrs[NL80211_ATTR_IE]),
7935 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7936}
7937
7938static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7939{
7940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7941 struct net_device *dev = info->user_ptr[1];
7942 enum nl80211_tdls_operation operation;
7943 u8 *peer;
7944
7945 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7946 !rdev->ops->tdls_oper)
7947 return -EOPNOTSUPP;
7948
7949 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7950 !info->attrs[NL80211_ATTR_MAC])
7951 return -EINVAL;
7952
7953 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7954 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7955
e35e4d28 7956 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7957}
7958
9588bbd5
JM		 7959static int nl80211_remain_on_channel(struct sk_buff *skb,
7960 struct genl_info *info)
7961{
4c476991 7962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7963 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7964 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7965 struct sk_buff *msg;
7966 void *hdr;
7967 u64 cookie;
683b6d3b 7968 u32 duration;
9588bbd5
JM		 7969 int err;
7970
7971 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7972 !info->attrs[NL80211_ATTR_DURATION])
7973 return -EINVAL;
7974
7975 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7976
ebf348fc
JB		 7977 if (!rdev->ops->remain_on_channel ||
7978 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7979 return -EOPNOTSUPP;
7980
9588bbd5 7981 /*
ebf348fc
JB		 7982 * We should be on that channel for at least a minimum amount of
7983 * time (10ms) but no longer than the driver supports.
9588bbd5 7984 */
ebf348fc 7985 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7986 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7987 return -EINVAL;
7988
683b6d3b
JB		 7989 err = nl80211_parse_chandef(rdev, info, &chandef);
7990 if (err)
7991 return err;
9588bbd5
JM		 7992
7993 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7994 if (!msg)
7995 return -ENOMEM;
9588bbd5 7996
15e47304 7997 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7998 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7999 if (!hdr) {
8000 err = -ENOBUFS;
9588bbd5
JM		 8001 goto free_msg;
8002 }
8003
683b6d3b
JB		 8004 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8005 duration, &cookie);
9588bbd5
JM		 8006
8007 if (err)
8008 goto free_msg;
8009
9360ffd1
DM		 8010 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8011 goto nla_put_failure;
9588bbd5
JM		 8012
8013 genlmsg_end(msg, hdr);
4c476991
JB		 8014
8015 return genlmsg_reply(msg, info);
9588bbd5
JM		 8016
8017 nla_put_failure:
8018 err = -ENOBUFS;
8019 free_msg:
8020 nlmsg_free(msg);
9588bbd5
JM		 8021 return err;
8022}
8023
8024static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8025 struct genl_info *info)
8026{
4c476991 8027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8028 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8029 u64 cookie;
9588bbd5
JM		 8030
8031 if (!info->attrs[NL80211_ATTR_COOKIE])
8032 return -EINVAL;
8033
4c476991
JB		 8034 if (!rdev->ops->cancel_remain_on_channel)
8035 return -EOPNOTSUPP;
9588bbd5 8036
9588bbd5
JM		 8037 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8038
e35e4d28 8039 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8040}
8041
13ae75b1
JM		 8042static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8043 u8 *rates, u8 rates_len)
8044{
8045 u8 i;
8046 u32 mask = 0;
8047
8048 for (i = 0; i < rates_len; i++) {
8049 int rate = (rates[i] & 0x7f) * 5;
8050 int ridx;
8051 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8052 struct ieee80211_rate *srate =
8053 &sband->bitrates[ridx];
8054 if (rate == srate->bitrate) {
8055 mask |= 1 << ridx;
8056 break;
8057 }
8058 }
8059 if (ridx == sband->n_bitrates)
8060 return 0; /* rate not found */
8061 }
8062
8063 return mask;
8064}
8065
24db78c0
SW		 8066static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8067 u8 *rates, u8 rates_len,
8068 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8069{
8070 u8 i;
8071
8072 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8073
8074 for (i = 0; i < rates_len; i++) {
8075 int ridx, rbit;
8076
8077 ridx = rates[i] / 8;
8078 rbit = BIT(rates[i] % 8);
8079
8080 /* check validity */
910570b5 8081 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8082 return false;
8083
8084 /* check availability */
8085 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8086 mcs[ridx] |= rbit;
8087 else
8088 return false;
8089 }
8090
8091 return true;
8092}
8093
204e35a9
JD		 8094static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8095{
8096 u16 mcs_mask = 0;
8097
8098 switch (vht_mcs_map) {
8099 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8100 break;
8101 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8102 mcs_mask = 0x00FF;
8103 break;
8104 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8105 mcs_mask = 0x01FF;
8106 break;
8107 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8108 mcs_mask = 0x03FF;
8109 break;
8110 default:
8111 break;
8112 }
8113
8114 return mcs_mask;
8115}
8116
8117static void vht_build_mcs_mask(u16 vht_mcs_map,
8118 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8119{
8120 u8 nss;
8121
8122 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8123 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8124 vht_mcs_map >>= 2;
8125 }
8126}
8127
8128static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8129 struct nl80211_txrate_vht *txrate,
8130 u16 mcs[NL80211_VHT_NSS_MAX])
8131{
8132 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8133 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8134 u8 i;
8135
8136 if (!sband->vht_cap.vht_supported)
8137 return false;
8138
8139 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8140
8141 /* Build vht_mcs_mask from VHT capabilities */
8142 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8143
8144 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8145 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8146 mcs[i] = txrate->mcs[i];
8147 else
8148 return false;
8149 }
8150
8151 return true;
8152}
8153
b54452b0 8154static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8155 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8156 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8157 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8158 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8159 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8160 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8161};
8162
8163static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8164 struct genl_info *info)
8165{
8166 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8168 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8169 int rem, i;
8170 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8171 struct nlattr *tx_rates;
8172 struct ieee80211_supported_band *sband;
204e35a9 8173 u16 vht_tx_mcs_map;
13ae75b1 8174
4c476991
JB		 8175 if (!rdev->ops->set_bitrate_mask)
8176 return -EOPNOTSUPP;
13ae75b1
JM		 8177
8178 memset(&mask, 0, sizeof(mask));
8179 /* Default to all rates enabled */
8180 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8181 sband = rdev->wiphy.bands[i];
7869303b
JD		 8182
8183 if (!sband)
8184 continue;
8185
8186 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8187 memcpy(mask.control[i].ht_mcs,
7869303b 8188 sband->ht_cap.mcs.rx_mask,
d1e33e65 8189 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8190
8191 if (!sband->vht_cap.vht_supported)
8192 continue;
8193
8194 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8195 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8196 }
8197
b9243ab0
JD		 8198 /* if no rates are given set it back to the defaults */
8199 if (!info->attrs[NL80211_ATTR_TX_RATES])
8200 goto out;
8201
13ae75b1
JM		 8202 /*
8203 * The nested attribute uses enum nl80211_band as the index. This maps
8204 * directly to the enum ieee80211_band values used in cfg80211.
8205 */
24db78c0 8206 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8207 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8208 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8209 int err;
8210
4c476991
JB		 8211 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8212 return -EINVAL;
13ae75b1 8213 sband = rdev->wiphy.bands[band];
4c476991
JB		 8214 if (sband == NULL)
8215 return -EINVAL;
ae811e21
JB		 8216 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8217 nla_len(tx_rates), nl80211_txattr_policy);
8218 if (err)
8219 return err;
13ae75b1
JM		 8220 if (tb[NL80211_TXRATE_LEGACY]) {
8221 mask.control[band].legacy = rateset_to_mask(
8222 sband,
8223 nla_data(tb[NL80211_TXRATE_LEGACY]),
8224 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8225 if ((mask.control[band].legacy == 0) &&
8226 nla_len(tb[NL80211_TXRATE_LEGACY]))
8227 return -EINVAL;
24db78c0 8228 }
d1e33e65 8229 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8230 if (!ht_rateset_to_mask(
8231 sband,
d1e33e65
JD		 8232 nla_data(tb[NL80211_TXRATE_HT]),
8233 nla_len(tb[NL80211_TXRATE_HT]),
8234 mask.control[band].ht_mcs))
24db78c0
SW		 8235 return -EINVAL;
8236 }
204e35a9
JD		 8237 if (tb[NL80211_TXRATE_VHT]) {
8238 if (!vht_set_mcs_mask(
8239 sband,
8240 nla_data(tb[NL80211_TXRATE_VHT]),
8241 mask.control[band].vht_mcs))
8242 return -EINVAL;
8243 }
0b9323f6
JD		 8244 if (tb[NL80211_TXRATE_GI]) {
8245 mask.control[band].gi =
8246 nla_get_u8(tb[NL80211_TXRATE_GI]);
8247 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8248 return -EINVAL;
8249 }
24db78c0
SW		 8250
8251 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8252 /* don't allow empty legacy rates if HT or VHT
8253 * are not even supported.
8254 */
8255 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8256 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8257 return -EINVAL;
8258
8259 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8260 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8261 goto out;
8262
8263 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8264 if (mask.control[band].vht_mcs[i])
8265 goto out;
24db78c0
SW		 8266
8267 /* legacy and mcs rates may not be both empty */
204e35a9 8268 return -EINVAL;
13ae75b1
JM		 8269 }
8270 }
8271
b9243ab0 8272out:
e35e4d28 8273 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8274}
8275
2e161f78 8276static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8277{
4c476991 8278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8279 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8280 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8281
8282 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8283 return -EINVAL;
8284
2e161f78
JB		 8285 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8286 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8287
71bbc994
JB		 8288 switch (wdev->iftype) {
8289 case NL80211_IFTYPE_STATION:
8290 case NL80211_IFTYPE_ADHOC:
8291 case NL80211_IFTYPE_P2P_CLIENT:
8292 case NL80211_IFTYPE_AP:
8293 case NL80211_IFTYPE_AP_VLAN:
8294 case NL80211_IFTYPE_MESH_POINT:
8295 case NL80211_IFTYPE_P2P_GO:
98104fde 8296 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8297 break;
8298 default:
4c476991 8299 return -EOPNOTSUPP;
71bbc994 8300 }
026331c4
JM		 8301
8302 /* not much point in registering if we can't reply */
4c476991
JB		 8303 if (!rdev->ops->mgmt_tx)
8304 return -EOPNOTSUPP;
026331c4 8305
15e47304 8306 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8307 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8308 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8309}
8310
2e161f78 8311static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8312{
4c476991 8313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8314 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8315 struct cfg80211_chan_def chandef;
026331c4 8316 int err;
d64d373f 8317 void *hdr = NULL;
026331c4 8318 u64 cookie;
e247bd90 8319 struct sk_buff *msg = NULL;
b176e629
AO		 8320 struct cfg80211_mgmt_tx_params params = {
8321 .dont_wait_for_ack =
8322 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8323 };
026331c4 8324
683b6d3b 8325 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8326 return -EINVAL;
8327
4c476991
JB		 8328 if (!rdev->ops->mgmt_tx)
8329 return -EOPNOTSUPP;
026331c4 8330
71bbc994 8331 switch (wdev->iftype) {
ea141b75
AQ		 8332 case NL80211_IFTYPE_P2P_DEVICE:
8333 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8334 return -EINVAL;
71bbc994
JB		 8335 case NL80211_IFTYPE_STATION:
8336 case NL80211_IFTYPE_ADHOC:
8337 case NL80211_IFTYPE_P2P_CLIENT:
8338 case NL80211_IFTYPE_AP:
8339 case NL80211_IFTYPE_AP_VLAN:
8340 case NL80211_IFTYPE_MESH_POINT:
8341 case NL80211_IFTYPE_P2P_GO:
8342 break;
8343 default:
4c476991 8344 return -EOPNOTSUPP;
71bbc994 8345 }
026331c4 8346
f7ca38df 8347 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8348 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8349 return -EINVAL;
b176e629 8350 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8351
8352 /*
8353 * We should wait on the channel for at least a minimum amount
8354 * of time (10ms) but no longer than the driver supports.
8355 */
b176e629
AO		 8356 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8357 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8358 return -EINVAL;
8359
f7ca38df
JB		 8360 }
8361
b176e629 8362 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8363
b176e629 8364 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8365 return -EINVAL;
8366
b176e629 8367 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8368
ea141b75
AQ		 8369 /* get the channel if any has been specified, otherwise pass NULL to
8370 * the driver. The latter will use the current one
8371 */
8372 chandef.chan = NULL;
8373 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8374 err = nl80211_parse_chandef(rdev, info, &chandef);
8375 if (err)
8376 return err;
8377 }
8378
b176e629 8379 if (!chandef.chan && params.offchan)
ea141b75 8380 return -EINVAL;
026331c4 8381
34d22ce2
AO		 8382 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8383 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8384
8385 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8386 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8387 int i;
8388
8389 if (len % sizeof(u16))
8390 return -EINVAL;
8391
8392 params.n_csa_offsets = len / sizeof(u16);
8393 params.csa_offsets =
8394 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8395
8396 /* check that all the offsets fit the frame */
8397 for (i = 0; i < params.n_csa_offsets; i++) {
8398 if (params.csa_offsets[i] >= params.len)
8399 return -EINVAL;
8400 }
8401 }
8402
b176e629 8403 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8405 if (!msg)
8406 return -ENOMEM;
026331c4 8407
15e47304 8408 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8409 NL80211_CMD_FRAME);
cb35fba3
DC		 8410 if (!hdr) {
8411 err = -ENOBUFS;
e247bd90
JB		 8412 goto free_msg;
8413 }
026331c4 8414 }
e247bd90 8415
b176e629
AO		 8416 params.chan = chandef.chan;
8417 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8418 if (err)
8419 goto free_msg;
8420
e247bd90 8421 if (msg) {
9360ffd1
DM		 8422 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8423 goto nla_put_failure;
026331c4 8424
e247bd90
JB		 8425 genlmsg_end(msg, hdr);
8426 return genlmsg_reply(msg, info);
8427 }
8428
8429 return 0;
026331c4
JM		 8430
8431 nla_put_failure:
8432 err = -ENOBUFS;
8433 free_msg:
8434 nlmsg_free(msg);
026331c4
JM		 8435 return err;
8436}
8437
f7ca38df
JB		 8438static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8439{
8440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8441 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8442 u64 cookie;
8443
8444 if (!info->attrs[NL80211_ATTR_COOKIE])
8445 return -EINVAL;
8446
8447 if (!rdev->ops->mgmt_tx_cancel_wait)
8448 return -EOPNOTSUPP;
8449
71bbc994
JB		 8450 switch (wdev->iftype) {
8451 case NL80211_IFTYPE_STATION:
8452 case NL80211_IFTYPE_ADHOC:
8453 case NL80211_IFTYPE_P2P_CLIENT:
8454 case NL80211_IFTYPE_AP:
8455 case NL80211_IFTYPE_AP_VLAN:
8456 case NL80211_IFTYPE_P2P_GO:
98104fde 8457 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8458 break;
8459 default:
f7ca38df 8460 return -EOPNOTSUPP;
71bbc994 8461 }
f7ca38df
JB		 8462
8463 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8464
e35e4d28 8465 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8466}
8467
ffb9eb3d
KV		 8468static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8469{
4c476991 8470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8471 struct wireless_dev *wdev;
4c476991 8472 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8473 u8 ps_state;
8474 bool state;
8475 int err;
8476
4c476991
JB		 8477 if (!info->attrs[NL80211_ATTR_PS_STATE])
8478 return -EINVAL;
ffb9eb3d
KV		 8479
8480 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8481
4c476991
JB		 8482 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8483 return -EINVAL;
ffb9eb3d
KV		 8484
8485 wdev = dev->ieee80211_ptr;
8486
4c476991
JB		 8487 if (!rdev->ops->set_power_mgmt)
8488 return -EOPNOTSUPP;
ffb9eb3d
KV		 8489
8490 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8491
8492 if (state == wdev->ps)
4c476991 8493 return 0;
ffb9eb3d 8494
e35e4d28 8495 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8496 if (!err)
8497 wdev->ps = state;
ffb9eb3d
KV		 8498 return err;
8499}
8500
8501static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8502{
4c476991 8503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8504 enum nl80211_ps_state ps_state;
8505 struct wireless_dev *wdev;
4c476991 8506 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8507 struct sk_buff *msg;
8508 void *hdr;
8509 int err;
8510
ffb9eb3d
KV		 8511 wdev = dev->ieee80211_ptr;
8512
4c476991
JB		 8513 if (!rdev->ops->set_power_mgmt)
8514 return -EOPNOTSUPP;
ffb9eb3d
KV		 8515
8516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8517 if (!msg)
8518 return -ENOMEM;
ffb9eb3d 8519
15e47304 8520 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8521 NL80211_CMD_GET_POWER_SAVE);
8522 if (!hdr) {
4c476991 8523 err = -ENOBUFS;
ffb9eb3d
KV		 8524 goto free_msg;
8525 }
8526
8527 if (wdev->ps)
8528 ps_state = NL80211_PS_ENABLED;
8529 else
8530 ps_state = NL80211_PS_DISABLED;
8531
9360ffd1
DM		 8532 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8533 goto nla_put_failure;
ffb9eb3d
KV		 8534
8535 genlmsg_end(msg, hdr);
4c476991 8536 return genlmsg_reply(msg, info);
ffb9eb3d 8537
4c476991 8538 nla_put_failure:
ffb9eb3d 8539 err = -ENOBUFS;
4c476991 8540 free_msg:
ffb9eb3d 8541 nlmsg_free(msg);
ffb9eb3d
KV		 8542 return err;
8543}
8544
94e860f1
JB		 8545static const struct nla_policy
8546nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8547 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8548 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8549 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8550 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8551 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8552 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8553};
8554
84f10708 8555static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8556 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8557{
8558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8559 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8560 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8561
d9d8b019 8562 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8563 return -EINVAL;
8564
84f10708
TP		 8565 if (!rdev->ops->set_cqm_txe_config)
8566 return -EOPNOTSUPP;
8567
8568 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8569 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8570 return -EOPNOTSUPP;
8571
e35e4d28 8572 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8573}
8574
d6dc1a38
JO		 8575static int nl80211_set_cqm_rssi(struct genl_info *info,
8576 s32 threshold, u32 hysteresis)
8577{
4c476991 8578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8579 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8580 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8581
8582 if (threshold > 0)
8583 return -EINVAL;
8584
1da5fcc8
JB		 8585 /* disabling - hysteresis should also be zero then */
8586 if (threshold == 0)
8587 hysteresis = 0;
d6dc1a38 8588
4c476991
JB		 8589 if (!rdev->ops->set_cqm_rssi_config)
8590 return -EOPNOTSUPP;
d6dc1a38 8591
074ac8df 8592 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8593 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8594 return -EOPNOTSUPP;
d6dc1a38 8595
e35e4d28 8596 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8597}
8598
8599static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8600{
8601 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8602 struct nlattr *cqm;
8603 int err;
8604
8605 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8606 if (!cqm)
8607 return -EINVAL;
d6dc1a38
JO		 8608
8609 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8610 nl80211_attr_cqm_policy);
8611 if (err)
1da5fcc8 8612 return err;
d6dc1a38
JO		 8613
8614 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8615 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8616 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8617 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8618
1da5fcc8
JB		 8619 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8620 }
8621
8622 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8623 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8624 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8625 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8626 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8627 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8628
8629 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8630 }
8631
8632 return -EINVAL;
d6dc1a38
JO		 8633}
8634
6e0bd6c3
RL		 8635static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8636{
8637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8638 struct net_device *dev = info->user_ptr[1];
8639 struct ocb_setup setup = {};
8640 int err;
8641
8642 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8643 if (err)
8644 return err;
8645
8646 return cfg80211_join_ocb(rdev, dev, &setup);
8647}
8648
8649static int nl80211_leave_ocb(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_ocb(rdev, dev);
8655}
8656
29cbe68c
JB		 8657static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8658{
8659 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8660 struct net_device *dev = info->user_ptr[1];
8661 struct mesh_config cfg;
c80d545d 8662 struct mesh_setup setup;
29cbe68c
JB		 8663 int err;
8664
8665 /* start with default */
8666 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8667 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8668
24bdd9f4 8669 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8670 /* and parse parameters if given */
24bdd9f4 8671 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8672 if (err)
8673 return err;
8674 }
8675
8676 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8677 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8678 return -EINVAL;
8679
c80d545d
JC		 8680 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8681 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8682
4bb62344
CYY		 8683 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8684 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8685 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8686 return -EINVAL;
8687
9bdbf04d
MP		 8688 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8689 setup.beacon_interval =
8690 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8691 if (setup.beacon_interval < 10 ||
8692 setup.beacon_interval > 10000)
8693 return -EINVAL;
8694 }
8695
8696 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8697 setup.dtim_period =
8698 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8699 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8700 return -EINVAL;
8701 }
8702
c80d545d
JC		 8703 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8704 /* parse additional setup parameters if given */
8705 err = nl80211_parse_mesh_setup(info, &setup);
8706 if (err)
8707 return err;
8708 }
8709
d37bb18a
TP		 8710 if (setup.user_mpm)
8711 cfg.auto_open_plinks = false;
8712
cc1d2806 8713 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8714 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8715 if (err)
8716 return err;
cc1d2806
JB		 8717 } else {
8718 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8719 setup.chandef.chan = NULL;
cc1d2806
JB		 8720 }
8721
ffb3cf30
AN		 8722 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8723 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8724 int n_rates =
8725 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8726 struct ieee80211_supported_band *sband;
8727
8728 if (!setup.chandef.chan)
8729 return -EINVAL;
8730
8731 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8732
8733 err = ieee80211_get_ratemask(sband, rates, n_rates,
8734 &setup.basic_rates);
8735 if (err)
8736 return err;
8737 }
8738
c80d545d 8739 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8740}
8741
8742static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8743{
8744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8745 struct net_device *dev = info->user_ptr[1];
8746
8747 return cfg80211_leave_mesh(rdev, dev);
8748}
8749
dfb89c56 8750#ifdef CONFIG_PM
bb92d199
AK		 8751static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8752 struct cfg80211_registered_device *rdev)
8753{
6abb9cb9 8754 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8755 struct nlattr *nl_pats, *nl_pat;
8756 int i, pat_len;
8757
6abb9cb9 8758 if (!wowlan->n_patterns)
bb92d199
AK		 8759 return 0;
8760
8761 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8762 if (!nl_pats)
8763 return -ENOBUFS;
8764
6abb9cb9 8765 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8766 nl_pat = nla_nest_start(msg, i + 1);
8767 if (!nl_pat)
8768 return -ENOBUFS;
6abb9cb9 8769 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8770 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8771 wowlan->patterns[i].mask) ||
50ac6607
AK		 8772 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8773 wowlan->patterns[i].pattern) ||
8774 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8775 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8776 return -ENOBUFS;
8777 nla_nest_end(msg, nl_pat);
8778 }
8779 nla_nest_end(msg, nl_pats);
8780
8781 return 0;
8782}
8783
2a0e047e
JB		 8784static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8785 struct cfg80211_wowlan_tcp *tcp)
8786{
8787 struct nlattr *nl_tcp;
8788
8789 if (!tcp)
8790 return 0;
8791
8792 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8793 if (!nl_tcp)
8794 return -ENOBUFS;
8795
930345ea
JB		 8796 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8797 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 8798 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8799 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8800 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8801 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8802 tcp->payload_len, tcp->payload) ||
8803 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8804 tcp->data_interval) ||
8805 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8806 tcp->wake_len, tcp->wake_data) ||
8807 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8808 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8809 return -ENOBUFS;
8810
8811 if (tcp->payload_seq.len &&
8812 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8813 sizeof(tcp->payload_seq), &tcp->payload_seq))
8814 return -ENOBUFS;
8815
8816 if (tcp->payload_tok.len &&
8817 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8818 sizeof(tcp->payload_tok) + tcp->tokens_size,
8819 &tcp->payload_tok))
8820 return -ENOBUFS;
8821
e248ad30
JB		 8822 nla_nest_end(msg, nl_tcp);
8823
2a0e047e
JB		 8824 return 0;
8825}
8826
75453ccb
LC		 8827static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8828 struct cfg80211_sched_scan_request *req)
8829{
8830 struct nlattr *nd, *freqs, *matches, *match;
8831 int i;
8832
8833 if (!req)
8834 return 0;
8835
8836 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8837 if (!nd)
8838 return -ENOBUFS;
8839
8840 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8841 return -ENOBUFS;
8842
21fea567
LC		 8843 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
8844 return -ENOBUFS;
8845
75453ccb
LC		 8846 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8847 if (!freqs)
8848 return -ENOBUFS;
8849
8850 for (i = 0; i < req->n_channels; i++)
8851 nla_put_u32(msg, i, req->channels[i]->center_freq);
8852
8853 nla_nest_end(msg, freqs);
8854
8855 if (req->n_match_sets) {
8856 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8857 for (i = 0; i < req->n_match_sets; i++) {
8858 match = nla_nest_start(msg, i);
8859 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8860 req->match_sets[i].ssid.ssid_len,
8861 req->match_sets[i].ssid.ssid);
8862 nla_nest_end(msg, match);
8863 }
8864 nla_nest_end(msg, matches);
8865 }
8866
8867 nla_nest_end(msg, nd);
8868
8869 return 0;
8870}
8871
ff1b6e69
JB		 8872static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8873{
8874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8875 struct sk_buff *msg;
8876 void *hdr;
2a0e047e 8877 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8878
964dc9e2 8879 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8880 return -EOPNOTSUPP;
8881
6abb9cb9 8882 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8883 /* adjust size to have room for all the data */
6abb9cb9
JB		 8884 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8885 rdev->wiphy.wowlan_config->tcp->payload_len +
8886 rdev->wiphy.wowlan_config->tcp->wake_len +
8887 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8888 }
8889
8890 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8891 if (!msg)
8892 return -ENOMEM;
8893
15e47304 8894 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8895 NL80211_CMD_GET_WOWLAN);
8896 if (!hdr)
8897 goto nla_put_failure;
8898
6abb9cb9 8899 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8900 struct nlattr *nl_wowlan;
8901
8902 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8903 if (!nl_wowlan)
8904 goto nla_put_failure;
8905
6abb9cb9 8906 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8907 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8908 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8909 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8910 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8911 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8912 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8913 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8914 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8915 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8916 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8917 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8918 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8919 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8920 goto nla_put_failure;
2a0e047e 8921
bb92d199
AK		 8922 if (nl80211_send_wowlan_patterns(msg, rdev))
8923 goto nla_put_failure;
2a0e047e 8924
6abb9cb9
JB		 8925 if (nl80211_send_wowlan_tcp(msg,
8926 rdev->wiphy.wowlan_config->tcp))
2a0e047e 8927 goto nla_put_failure;
75453ccb
LC		 8928
8929 if (nl80211_send_wowlan_nd(
8930 msg,
8931 rdev->wiphy.wowlan_config->nd_config))
8932 goto nla_put_failure;
2a0e047e 8933
ff1b6e69
JB		 8934 nla_nest_end(msg, nl_wowlan);
8935 }
8936
8937 genlmsg_end(msg, hdr);
8938 return genlmsg_reply(msg, info);
8939
8940nla_put_failure:
8941 nlmsg_free(msg);
8942 return -ENOBUFS;
8943}
8944
2a0e047e
JB		 8945static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8946 struct nlattr *attr,
8947 struct cfg80211_wowlan *trig)
8948{
8949 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8950 struct cfg80211_wowlan_tcp *cfg;
8951 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8952 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8953 u32 size;
8954 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8955 int err, port;
8956
964dc9e2 8957 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8958 return -EINVAL;
8959
8960 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8961 nla_data(attr), nla_len(attr),
8962 nl80211_wowlan_tcp_policy);
8963 if (err)
8964 return err;
8965
8966 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8967 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8968 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8969 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8970 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8971 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8972 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8973 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8974 return -EINVAL;
8975
8976 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8977 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8978 return -EINVAL;
8979
8980 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8981 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8982 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8983 return -EINVAL;
8984
8985 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8986 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8987 return -EINVAL;
8988
8989 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8990 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8991 return -EINVAL;
8992
8993 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8994 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8995
8996 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8997 tokens_size = tokln - sizeof(*tok);
8998
8999 if (!tok->len || tokens_size % tok->len)
9000 return -EINVAL;
964dc9e2 9001 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9002 return -EINVAL;
964dc9e2 9003 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9004 return -EINVAL;
964dc9e2 9005 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9006 return -EINVAL;
964dc9e2 9007 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9008 return -EINVAL;
9009 if (tok->offset + tok->len > data_size)
9010 return -EINVAL;
9011 }
9012
9013 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9014 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9015 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9016 return -EINVAL;
9017 if (seq->len == 0 || seq->len > 4)
9018 return -EINVAL;
9019 if (seq->len + seq->offset > data_size)
9020 return -EINVAL;
9021 }
9022
9023 size = sizeof(*cfg);
9024 size += data_size;
9025 size += wake_size + wake_mask_size;
9026 size += tokens_size;
9027
9028 cfg = kzalloc(size, GFP_KERNEL);
9029 if (!cfg)
9030 return -ENOMEM;
67b61f6c
JB		 9031 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9032 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9033 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9034 ETH_ALEN);
9035 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9036 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9037 else
9038 port = 0;
9039#ifdef CONFIG_INET
9040 /* allocate a socket and port for it and use it */
9041 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9042 IPPROTO_TCP, &cfg->sock, 1);
9043 if (err) {
9044 kfree(cfg);
9045 return err;
9046 }
9047 if (inet_csk_get_port(cfg->sock->sk, port)) {
9048 sock_release(cfg->sock);
9049 kfree(cfg);
9050 return -EADDRINUSE;
9051 }
9052 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9053#else
9054 if (!port) {
9055 kfree(cfg);
9056 return -EINVAL;
9057 }
9058 cfg->src_port = port;
9059#endif
9060
9061 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9062 cfg->payload_len = data_size;
9063 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9064 memcpy((void *)cfg->payload,
9065 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9066 data_size);
9067 if (seq)
9068 cfg->payload_seq = *seq;
9069 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9070 cfg->wake_len = wake_size;
9071 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9072 memcpy((void *)cfg->wake_data,
9073 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9074 wake_size);
9075 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9076 data_size + wake_size;
9077 memcpy((void *)cfg->wake_mask,
9078 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9079 wake_mask_size);
9080 if (tok) {
9081 cfg->tokens_size = tokens_size;
9082 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9083 }
9084
9085 trig->tcp = cfg;
9086
9087 return 0;
9088}
9089
8cd4d456
LC		 9090static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9091 const struct wiphy_wowlan_support *wowlan,
9092 struct nlattr *attr,
9093 struct cfg80211_wowlan *trig)
9094{
9095 struct nlattr **tb;
9096 int err;
9097
9098 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9099 if (!tb)
9100 return -ENOMEM;
9101
9102 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9103 err = -EOPNOTSUPP;
9104 goto out;
9105 }
9106
9107 err = nla_parse(tb, NL80211_ATTR_MAX,
9108 nla_data(attr), nla_len(attr),
9109 nl80211_policy);
9110 if (err)
9111 goto out;
9112
ad2b26ab 9113 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9114 err = PTR_ERR_OR_ZERO(trig->nd_config);
9115 if (err)
9116 trig->nd_config = NULL;
9117
9118out:
9119 kfree(tb);
9120 return err;
9121}
9122
ff1b6e69
JB		 9123static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9124{
9125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9126 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9127 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9128 struct cfg80211_wowlan *ntrig;
964dc9e2 9129 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9130 int err, i;
6abb9cb9 9131 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9132 bool regular = false;
ff1b6e69 9133
964dc9e2 9134 if (!wowlan)
ff1b6e69
JB		 9135 return -EOPNOTSUPP;
9136
ae33bd81
JB		 9137 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9138 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9139 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9140 goto set_wakeup;
9141 }
ff1b6e69
JB		 9142
9143 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9144 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9145 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9146 nl80211_wowlan_policy);
9147 if (err)
9148 return err;
9149
9150 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9151 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9152 return -EINVAL;
9153 new_triggers.any = true;
9154 }
9155
9156 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9157 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9158 return -EINVAL;
9159 new_triggers.disconnect = true;
98fc4386 9160 regular = true;
ff1b6e69
JB		 9161 }
9162
9163 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9164 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9165 return -EINVAL;
9166 new_triggers.magic_pkt = true;
98fc4386 9167 regular = true;
ff1b6e69
JB		 9168 }
9169
77dbbb13
JB		 9170 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9171 return -EINVAL;
9172
9173 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9174 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9175 return -EINVAL;
9176 new_triggers.gtk_rekey_failure = true;
98fc4386 9177 regular = true;
77dbbb13
JB		 9178 }
9179
9180 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9181 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9182 return -EINVAL;
9183 new_triggers.eap_identity_req = true;
98fc4386 9184 regular = true;
77dbbb13
JB		 9185 }
9186
9187 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9188 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9189 return -EINVAL;
9190 new_triggers.four_way_handshake = true;
98fc4386 9191 regular = true;
77dbbb13
JB		 9192 }
9193
9194 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9195 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9196 return -EINVAL;
9197 new_triggers.rfkill_release = true;
98fc4386 9198 regular = true;
77dbbb13
JB		 9199 }
9200
ff1b6e69
JB		 9201 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9202 struct nlattr *pat;
9203 int n_patterns = 0;
bb92d199 9204 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9205 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9206
98fc4386
JB		 9207 regular = true;
9208
ff1b6e69
JB		 9209 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9210 rem)
9211 n_patterns++;
9212 if (n_patterns > wowlan->n_patterns)
9213 return -EINVAL;
9214
9215 new_triggers.patterns = kcalloc(n_patterns,
9216 sizeof(new_triggers.patterns[0]),
9217 GFP_KERNEL);
9218 if (!new_triggers.patterns)
9219 return -ENOMEM;
9220
9221 new_triggers.n_patterns = n_patterns;
9222 i = 0;
9223
9224 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9225 rem) {
922bd80f
JB		 9226 u8 *mask_pat;
9227
50ac6607
AK		 9228 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9229 nla_len(pat), NULL);
ff1b6e69 9230 err = -EINVAL;
50ac6607
AK		 9231 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9232 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9233 goto error;
50ac6607 9234 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9235 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9236 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9237 goto error;
9238 if (pat_len > wowlan->pattern_max_len ||
9239 pat_len < wowlan->pattern_min_len)
9240 goto error;
9241
50ac6607 9242 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9243 pkt_offset = 0;
9244 else
9245 pkt_offset = nla_get_u32(
50ac6607 9246 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9247 if (pkt_offset > wowlan->max_pkt_offset)
9248 goto error;
9249 new_triggers.patterns[i].pkt_offset = pkt_offset;
9250
922bd80f
JB		 9251 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9252 if (!mask_pat) {
ff1b6e69
JB		 9253 err = -ENOMEM;
9254 goto error;
9255 }
922bd80f
JB		 9256 new_triggers.patterns[i].mask = mask_pat;
9257 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9258 mask_len);
922bd80f
JB		 9259 mask_pat += mask_len;
9260 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9261 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9262 memcpy(mask_pat,
50ac6607 9263 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9264 pat_len);
9265 i++;
9266 }
9267 }
9268
2a0e047e 9269 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9270 regular = true;
2a0e047e
JB		 9271 err = nl80211_parse_wowlan_tcp(
9272 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9273 &new_triggers);
9274 if (err)
9275 goto error;
9276 }
9277
8cd4d456 9278 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9279 regular = true;
8cd4d456
LC		 9280 err = nl80211_parse_wowlan_nd(
9281 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9282 &new_triggers);
9283 if (err)
9284 goto error;
9285 }
9286
98fc4386
JB		 9287 /* The 'any' trigger means the device continues operating more or less
9288 * as in its normal operation mode and wakes up the host on most of the
9289 * normal interrupts (like packet RX, ...)
9290 * It therefore makes little sense to combine with the more constrained
9291 * wakeup trigger modes.
9292 */
9293 if (new_triggers.any && regular) {
9294 err = -EINVAL;
9295 goto error;
9296 }
9297
ae33bd81
JB		 9298 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9299 if (!ntrig) {
9300 err = -ENOMEM;
9301 goto error;
ff1b6e69 9302 }
ae33bd81 9303 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9304 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9305
ae33bd81 9306 set_wakeup:
6abb9cb9
JB		 9307 if (rdev->ops->set_wakeup &&
9308 prev_enabled != !!rdev->wiphy.wowlan_config)
9309 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9310
ff1b6e69
JB		 9311 return 0;
9312 error:
9313 for (i = 0; i < new_triggers.n_patterns; i++)
9314 kfree(new_triggers.patterns[i].mask);
9315 kfree(new_triggers.patterns);
2a0e047e
JB		 9316 if (new_triggers.tcp && new_triggers.tcp->sock)
9317 sock_release(new_triggers.tcp->sock);
9318 kfree(new_triggers.tcp);
ff1b6e69
JB		 9319 return err;
9320}
dfb89c56 9321#endif
ff1b6e69 9322
be29b99a
AK		 9323static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9324 struct cfg80211_registered_device *rdev)
9325{
9326 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9327 int i, j, pat_len;
9328 struct cfg80211_coalesce_rules *rule;
9329
9330 if (!rdev->coalesce->n_rules)
9331 return 0;
9332
9333 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9334 if (!nl_rules)
9335 return -ENOBUFS;
9336
9337 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9338 nl_rule = nla_nest_start(msg, i + 1);
9339 if (!nl_rule)
9340 return -ENOBUFS;
9341
9342 rule = &rdev->coalesce->rules[i];
9343 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9344 rule->delay))
9345 return -ENOBUFS;
9346
9347 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9348 rule->condition))
9349 return -ENOBUFS;
9350
9351 nl_pats = nla_nest_start(msg,
9352 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9353 if (!nl_pats)
9354 return -ENOBUFS;
9355
9356 for (j = 0; j < rule->n_patterns; j++) {
9357 nl_pat = nla_nest_start(msg, j + 1);
9358 if (!nl_pat)
9359 return -ENOBUFS;
9360 pat_len = rule->patterns[j].pattern_len;
9361 if (nla_put(msg, NL80211_PKTPAT_MASK,
9362 DIV_ROUND_UP(pat_len, 8),
9363 rule->patterns[j].mask) ||
9364 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9365 rule->patterns[j].pattern) ||
9366 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9367 rule->patterns[j].pkt_offset))
9368 return -ENOBUFS;
9369 nla_nest_end(msg, nl_pat);
9370 }
9371 nla_nest_end(msg, nl_pats);
9372 nla_nest_end(msg, nl_rule);
9373 }
9374 nla_nest_end(msg, nl_rules);
9375
9376 return 0;
9377}
9378
9379static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9380{
9381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9382 struct sk_buff *msg;
9383 void *hdr;
9384
9385 if (!rdev->wiphy.coalesce)
9386 return -EOPNOTSUPP;
9387
9388 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9389 if (!msg)
9390 return -ENOMEM;
9391
9392 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9393 NL80211_CMD_GET_COALESCE);
9394 if (!hdr)
9395 goto nla_put_failure;
9396
9397 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9398 goto nla_put_failure;
9399
9400 genlmsg_end(msg, hdr);
9401 return genlmsg_reply(msg, info);
9402
9403nla_put_failure:
9404 nlmsg_free(msg);
9405 return -ENOBUFS;
9406}
9407
9408void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9409{
9410 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9411 int i, j;
9412 struct cfg80211_coalesce_rules *rule;
9413
9414 if (!coalesce)
9415 return;
9416
9417 for (i = 0; i < coalesce->n_rules; i++) {
9418 rule = &coalesce->rules[i];
9419 for (j = 0; j < rule->n_patterns; j++)
9420 kfree(rule->patterns[j].mask);
9421 kfree(rule->patterns);
9422 }
9423 kfree(coalesce->rules);
9424 kfree(coalesce);
9425 rdev->coalesce = NULL;
9426}
9427
9428static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9429 struct nlattr *rule,
9430 struct cfg80211_coalesce_rules *new_rule)
9431{
9432 int err, i;
9433 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9434 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9435 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9436 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9437
9438 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9439 nla_len(rule), nl80211_coalesce_policy);
9440 if (err)
9441 return err;
9442
9443 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9444 new_rule->delay =
9445 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9446 if (new_rule->delay > coalesce->max_delay)
9447 return -EINVAL;
9448
9449 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9450 new_rule->condition =
9451 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9452 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9453 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9454 return -EINVAL;
9455
9456 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9457 return -EINVAL;
9458
9459 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9460 rem)
9461 n_patterns++;
9462 if (n_patterns > coalesce->n_patterns)
9463 return -EINVAL;
9464
9465 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9466 GFP_KERNEL);
9467 if (!new_rule->patterns)
9468 return -ENOMEM;
9469
9470 new_rule->n_patterns = n_patterns;
9471 i = 0;
9472
9473 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9474 rem) {
922bd80f
JB		 9475 u8 *mask_pat;
9476
be29b99a
AK		 9477 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9478 nla_len(pat), NULL);
9479 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9480 !pat_tb[NL80211_PKTPAT_PATTERN])
9481 return -EINVAL;
9482 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9483 mask_len = DIV_ROUND_UP(pat_len, 8);
9484 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9485 return -EINVAL;
9486 if (pat_len > coalesce->pattern_max_len ||
9487 pat_len < coalesce->pattern_min_len)
9488 return -EINVAL;
9489
9490 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9491 pkt_offset = 0;
9492 else
9493 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9494 if (pkt_offset > coalesce->max_pkt_offset)
9495 return -EINVAL;
9496 new_rule->patterns[i].pkt_offset = pkt_offset;
9497
922bd80f
JB		 9498 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9499 if (!mask_pat)
be29b99a 9500 return -ENOMEM;
922bd80f
JB		 9501
9502 new_rule->patterns[i].mask = mask_pat;
9503 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9504 mask_len);
9505
9506 mask_pat += mask_len;
9507 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9508 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9509 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9510 pat_len);
be29b99a
AK		 9511 i++;
9512 }
9513
9514 return 0;
9515}
9516
9517static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9518{
9519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9520 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9521 struct cfg80211_coalesce new_coalesce = {};
9522 struct cfg80211_coalesce *n_coalesce;
9523 int err, rem_rule, n_rules = 0, i, j;
9524 struct nlattr *rule;
9525 struct cfg80211_coalesce_rules *tmp_rule;
9526
9527 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9528 return -EOPNOTSUPP;
9529
9530 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9531 cfg80211_rdev_free_coalesce(rdev);
9532 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9533 return 0;
9534 }
9535
9536 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9537 rem_rule)
9538 n_rules++;
9539 if (n_rules > coalesce->n_rules)
9540 return -EINVAL;
9541
9542 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9543 GFP_KERNEL);
9544 if (!new_coalesce.rules)
9545 return -ENOMEM;
9546
9547 new_coalesce.n_rules = n_rules;
9548 i = 0;
9549
9550 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9551 rem_rule) {
9552 err = nl80211_parse_coalesce_rule(rdev, rule,
9553 &new_coalesce.rules[i]);
9554 if (err)
9555 goto error;
9556
9557 i++;
9558 }
9559
9560 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9561 if (err)
9562 goto error;
9563
9564 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9565 if (!n_coalesce) {
9566 err = -ENOMEM;
9567 goto error;
9568 }
9569 cfg80211_rdev_free_coalesce(rdev);
9570 rdev->coalesce = n_coalesce;
9571
9572 return 0;
9573error:
9574 for (i = 0; i < new_coalesce.n_rules; i++) {
9575 tmp_rule = &new_coalesce.rules[i];
9576 for (j = 0; j < tmp_rule->n_patterns; j++)
9577 kfree(tmp_rule->patterns[j].mask);
9578 kfree(tmp_rule->patterns);
9579 }
9580 kfree(new_coalesce.rules);
9581
9582 return err;
9583}
9584
e5497d76
JB		 9585static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9586{
9587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9588 struct net_device *dev = info->user_ptr[1];
9589 struct wireless_dev *wdev = dev->ieee80211_ptr;
9590 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9591 struct cfg80211_gtk_rekey_data rekey_data;
9592 int err;
9593
9594 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9595 return -EINVAL;
9596
9597 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9598 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9599 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9600 nl80211_rekey_policy);
9601 if (err)
9602 return err;
9603
9604 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9605 return -ERANGE;
9606 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9607 return -ERANGE;
9608 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9609 return -ERANGE;
9610
78f686ca
JB		 9611 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9612 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9613 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9614
9615 wdev_lock(wdev);
9616 if (!wdev->current_bss) {
9617 err = -ENOTCONN;
9618 goto out;
9619 }
9620
9621 if (!rdev->ops->set_rekey_data) {
9622 err = -EOPNOTSUPP;
9623 goto out;
9624 }
9625
e35e4d28 9626 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9627 out:
9628 wdev_unlock(wdev);
9629 return err;
9630}
9631
28946da7
JB		 9632static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9633 struct genl_info *info)
9634{
9635 struct net_device *dev = info->user_ptr[1];
9636 struct wireless_dev *wdev = dev->ieee80211_ptr;
9637
9638 if (wdev->iftype != NL80211_IFTYPE_AP &&
9639 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9640 return -EINVAL;
9641
15e47304 9642 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9643 return -EBUSY;
9644
15e47304 9645 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9646 return 0;
9647}
9648
7f6cf311
JB		 9649static int nl80211_probe_client(struct sk_buff *skb,
9650 struct genl_info *info)
9651{
9652 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9653 struct net_device *dev = info->user_ptr[1];
9654 struct wireless_dev *wdev = dev->ieee80211_ptr;
9655 struct sk_buff *msg;
9656 void *hdr;
9657 const u8 *addr;
9658 u64 cookie;
9659 int err;
9660
9661 if (wdev->iftype != NL80211_IFTYPE_AP &&
9662 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9663 return -EOPNOTSUPP;
9664
9665 if (!info->attrs[NL80211_ATTR_MAC])
9666 return -EINVAL;
9667
9668 if (!rdev->ops->probe_client)
9669 return -EOPNOTSUPP;
9670
9671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9672 if (!msg)
9673 return -ENOMEM;
9674
15e47304 9675 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9676 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9677 if (!hdr) {
9678 err = -ENOBUFS;
7f6cf311
JB		 9679 goto free_msg;
9680 }
9681
9682 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9683
e35e4d28 9684 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9685 if (err)
9686 goto free_msg;
9687
9360ffd1
DM		 9688 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9689 goto nla_put_failure;
7f6cf311
JB		 9690
9691 genlmsg_end(msg, hdr);
9692
9693 return genlmsg_reply(msg, info);
9694
9695 nla_put_failure:
9696 err = -ENOBUFS;
9697 free_msg:
9698 nlmsg_free(msg);
9699 return err;
9700}
9701
5e760230
JB		 9702static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9703{
9704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9705 struct cfg80211_beacon_registration *reg, *nreg;
9706 int rv;
5e760230
JB		 9707
9708 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9709 return -EOPNOTSUPP;
9710
37c73b5f
BG		 9711 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9712 if (!nreg)
9713 return -ENOMEM;
9714
9715 /* First, check if already registered. */
9716 spin_lock_bh(&rdev->beacon_registrations_lock);
9717 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9718 if (reg->nlportid == info->snd_portid) {
9719 rv = -EALREADY;
9720 goto out_err;
9721 }
9722 }
9723 /* Add it to the list */
9724 nreg->nlportid = info->snd_portid;
9725 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9726
37c73b5f 9727 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9728
9729 return 0;
37c73b5f
BG		 9730out_err:
9731 spin_unlock_bh(&rdev->beacon_registrations_lock);
9732 kfree(nreg);
9733 return rv;
5e760230
JB		 9734}
9735
98104fde
JB		 9736static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9737{
9738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9739 struct wireless_dev *wdev = info->user_ptr[1];
9740 int err;
9741
9742 if (!rdev->ops->start_p2p_device)
9743 return -EOPNOTSUPP;
9744
9745 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9746 return -EOPNOTSUPP;
9747
9748 if (wdev->p2p_started)
9749 return 0;
9750
b6a55015
LC		 9751 if (rfkill_blocked(rdev->rfkill))
9752 return -ERFKILL;
98104fde 9753
eeb126e9 9754 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9755 if (err)
9756 return err;
9757
9758 wdev->p2p_started = true;
98104fde 9759 rdev->opencount++;
98104fde
JB		 9760
9761 return 0;
9762}
9763
9764static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9765{
9766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9767 struct wireless_dev *wdev = info->user_ptr[1];
9768
9769 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9770 return -EOPNOTSUPP;
9771
9772 if (!rdev->ops->stop_p2p_device)
9773 return -EOPNOTSUPP;
9774
f9f47529 9775 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9776
9777 return 0;
9778}
9779
3713b4e3
JB		 9780static int nl80211_get_protocol_features(struct sk_buff *skb,
9781 struct genl_info *info)
9782{
9783 void *hdr;
9784 struct sk_buff *msg;
9785
9786 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9787 if (!msg)
9788 return -ENOMEM;
9789
9790 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9791 NL80211_CMD_GET_PROTOCOL_FEATURES);
9792 if (!hdr)
9793 goto nla_put_failure;
9794
9795 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9796 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9797 goto nla_put_failure;
9798
9799 genlmsg_end(msg, hdr);
9800 return genlmsg_reply(msg, info);
9801
9802 nla_put_failure:
9803 kfree_skb(msg);
9804 return -ENOBUFS;
9805}
9806
355199e0
JM		 9807static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9808{
9809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9810 struct cfg80211_update_ft_ies_params ft_params;
9811 struct net_device *dev = info->user_ptr[1];
9812
9813 if (!rdev->ops->update_ft_ies)
9814 return -EOPNOTSUPP;
9815
9816 if (!info->attrs[NL80211_ATTR_MDID] ||
9817 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9818 return -EINVAL;
9819
9820 memset(&ft_params, 0, sizeof(ft_params));
9821 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9822 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9823 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9824
9825 return rdev_update_ft_ies(rdev, dev, &ft_params);
9826}
9827
5de17984
AS		 9828static int nl80211_crit_protocol_start(struct sk_buff *skb,
9829 struct genl_info *info)
9830{
9831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9832 struct wireless_dev *wdev = info->user_ptr[1];
9833 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9834 u16 duration;
9835 int ret;
9836
9837 if (!rdev->ops->crit_proto_start)
9838 return -EOPNOTSUPP;
9839
9840 if (WARN_ON(!rdev->ops->crit_proto_stop))
9841 return -EINVAL;
9842
9843 if (rdev->crit_proto_nlportid)
9844 return -EBUSY;
9845
9846 /* determine protocol if provided */
9847 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9848 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9849
9850 if (proto >= NUM_NL80211_CRIT_PROTO)
9851 return -EINVAL;
9852
9853 /* timeout must be provided */
9854 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9855 return -EINVAL;
9856
9857 duration =
9858 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9859
9860 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9861 return -ERANGE;
9862
9863 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9864 if (!ret)
9865 rdev->crit_proto_nlportid = info->snd_portid;
9866
9867 return ret;
9868}
9869
9870static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9871 struct genl_info *info)
9872{
9873 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9874 struct wireless_dev *wdev = info->user_ptr[1];
9875
9876 if (!rdev->ops->crit_proto_stop)
9877 return -EOPNOTSUPP;
9878
9879 if (rdev->crit_proto_nlportid) {
9880 rdev->crit_proto_nlportid = 0;
9881 rdev_crit_proto_stop(rdev, wdev);
9882 }
9883 return 0;
9884}
9885
ad7e718c
JB		 9886static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9887{
9888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9889 struct wireless_dev *wdev =
9890 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9891 int i, err;
9892 u32 vid, subcmd;
9893
9894 if (!rdev->wiphy.vendor_commands)
9895 return -EOPNOTSUPP;
9896
9897 if (IS_ERR(wdev)) {
9898 err = PTR_ERR(wdev);
9899 if (err != -EINVAL)
9900 return err;
9901 wdev = NULL;
9902 } else if (wdev->wiphy != &rdev->wiphy) {
9903 return -EINVAL;
9904 }
9905
9906 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9907 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9908 return -EINVAL;
9909
9910 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9911 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9912 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9913 const struct wiphy_vendor_command *vcmd;
9914 void *data = NULL;
9915 int len = 0;
9916
9917 vcmd = &rdev->wiphy.vendor_commands[i];
9918
9919 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9920 continue;
9921
9922 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9923 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9924 if (!wdev)
9925 return -EINVAL;
9926 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9927 !wdev->netdev)
9928 return -EINVAL;
9929
9930 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9931 if (wdev->netdev &&
9932 !netif_running(wdev->netdev))
9933 return -ENETDOWN;
9934 if (!wdev->netdev && !wdev->p2p_started)
9935 return -ENETDOWN;
9936 }
9937 } else {
9938 wdev = NULL;
9939 }
9940
9941 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9942 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9943 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9944 }
9945
9946 rdev->cur_cmd_info = info;
9947 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9948 data, len);
9949 rdev->cur_cmd_info = NULL;
9950 return err;
9951 }
9952
9953 return -EOPNOTSUPP;
9954}
9955
9956struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9957 enum nl80211_commands cmd,
9958 enum nl80211_attrs attr,
9959 int approxlen)
9960{
f26cbf40 9961 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9962
9963 if (WARN_ON(!rdev->cur_cmd_info))
9964 return NULL;
9965
6c09e791 9966 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 9967 rdev->cur_cmd_info->snd_portid,
9968 rdev->cur_cmd_info->snd_seq,
567ffc35 9969 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9970}
9971EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9972
9973int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9974{
9975 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9976 void *hdr = ((void **)skb->cb)[1];
9977 struct nlattr *data = ((void **)skb->cb)[2];
9978
bd8c78e7
JB		 9979 /* clear CB data for netlink core to own from now on */
9980 memset(skb->cb, 0, sizeof(skb->cb));
9981
ad7e718c
JB		 9982 if (WARN_ON(!rdev->cur_cmd_info)) {
9983 kfree_skb(skb);
9984 return -EINVAL;
9985 }
9986
9987 nla_nest_end(skb, data);
9988 genlmsg_end(skb, hdr);
9989 return genlmsg_reply(skb, rdev->cur_cmd_info);
9990}
9991EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9992
9993
fa9ffc74
KP		 9994static int nl80211_set_qos_map(struct sk_buff *skb,
9995 struct genl_info *info)
9996{
9997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9998 struct cfg80211_qos_map *qos_map = NULL;
9999 struct net_device *dev = info->user_ptr[1];
10000 u8 *pos, len, num_des, des_len, des;
10001 int ret;
10002
10003 if (!rdev->ops->set_qos_map)
10004 return -EOPNOTSUPP;
10005
10006 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10007 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10008 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10009
10010 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10011 len > IEEE80211_QOS_MAP_LEN_MAX)
10012 return -EINVAL;
10013
10014 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10015 if (!qos_map)
10016 return -ENOMEM;
10017
10018 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10019 if (num_des) {
10020 des_len = num_des *
10021 sizeof(struct cfg80211_dscp_exception);
10022 memcpy(qos_map->dscp_exception, pos, des_len);
10023 qos_map->num_des = num_des;
10024 for (des = 0; des < num_des; des++) {
10025 if (qos_map->dscp_exception[des].up > 7) {
10026 kfree(qos_map);
10027 return -EINVAL;
10028 }
10029 }
10030 pos += des_len;
10031 }
10032 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10033 }
10034
10035 wdev_lock(dev->ieee80211_ptr);
10036 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10037 if (!ret)
10038 ret = rdev_set_qos_map(rdev, dev, qos_map);
10039 wdev_unlock(dev->ieee80211_ptr);
10040
10041 kfree(qos_map);
10042 return ret;
10043}
10044
960d01ac
JB		 10045static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10046{
10047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10048 struct net_device *dev = info->user_ptr[1];
10049 struct wireless_dev *wdev = dev->ieee80211_ptr;
10050 const u8 *peer;
10051 u8 tsid, up;
10052 u16 admitted_time = 0;
10053 int err;
10054
723e73ac 10055 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10056 return -EOPNOTSUPP;
10057
10058 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10059 !info->attrs[NL80211_ATTR_USER_PRIO])
10060 return -EINVAL;
10061
10062 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10063 if (tsid >= IEEE80211_NUM_TIDS)
10064 return -EINVAL;
10065
10066 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10067 if (up >= IEEE80211_NUM_UPS)
10068 return -EINVAL;
10069
10070 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10071 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10072 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10073 * need more attributes for that (e.g. BA session requirement);
10074 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10075 */
10076 return -EINVAL;
10077 }
10078
10079 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10080
10081 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10082 admitted_time =
10083 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10084 if (!admitted_time)
10085 return -EINVAL;
10086 }
10087
10088 wdev_lock(wdev);
10089 switch (wdev->iftype) {
10090 case NL80211_IFTYPE_STATION:
10091 case NL80211_IFTYPE_P2P_CLIENT:
10092 if (wdev->current_bss)
10093 break;
10094 err = -ENOTCONN;
10095 goto out;
10096 default:
10097 err = -EOPNOTSUPP;
10098 goto out;
10099 }
10100
10101 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10102
10103 out:
10104 wdev_unlock(wdev);
10105 return err;
10106}
10107
10108static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10109{
10110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10111 struct net_device *dev = info->user_ptr[1];
10112 struct wireless_dev *wdev = dev->ieee80211_ptr;
10113 const u8 *peer;
10114 u8 tsid;
10115 int err;
10116
10117 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10118 return -EINVAL;
10119
10120 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10121 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10122
10123 wdev_lock(wdev);
10124 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10125 wdev_unlock(wdev);
10126
10127 return err;
10128}
10129
1057d35e
AN		 10130static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10131 struct genl_info *info)
10132{
10133 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10134 struct net_device *dev = info->user_ptr[1];
10135 struct wireless_dev *wdev = dev->ieee80211_ptr;
10136 struct cfg80211_chan_def chandef = {};
10137 const u8 *addr;
10138 u8 oper_class;
10139 int err;
10140
10141 if (!rdev->ops->tdls_channel_switch ||
10142 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10143 return -EOPNOTSUPP;
10144
10145 switch (dev->ieee80211_ptr->iftype) {
10146 case NL80211_IFTYPE_STATION:
10147 case NL80211_IFTYPE_P2P_CLIENT:
10148 break;
10149 default:
10150 return -EOPNOTSUPP;
10151 }
10152
10153 if (!info->attrs[NL80211_ATTR_MAC] ||
10154 !info->attrs[NL80211_ATTR_OPER_CLASS])
10155 return -EINVAL;
10156
10157 err = nl80211_parse_chandef(rdev, info, &chandef);
10158 if (err)
10159 return err;
10160
10161 /*
10162 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10163 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10164 * specification is not defined for them.
10165 */
10166 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10167 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10168 chandef.width != NL80211_CHAN_WIDTH_20)
10169 return -EINVAL;
10170
10171 /* we will be active on the TDLS link */
10172 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
10173 return -EINVAL;
10174
10175 /* don't allow switching to DFS channels */
10176 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10177 return -EINVAL;
10178
10179 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10180 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10181
10182 wdev_lock(wdev);
10183 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10184 wdev_unlock(wdev);
10185
10186 return err;
10187}
10188
10189static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10190 struct genl_info *info)
10191{
10192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10193 struct net_device *dev = info->user_ptr[1];
10194 struct wireless_dev *wdev = dev->ieee80211_ptr;
10195 const u8 *addr;
10196
10197 if (!rdev->ops->tdls_channel_switch ||
10198 !rdev->ops->tdls_cancel_channel_switch ||
10199 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10200 return -EOPNOTSUPP;
10201
10202 switch (dev->ieee80211_ptr->iftype) {
10203 case NL80211_IFTYPE_STATION:
10204 case NL80211_IFTYPE_P2P_CLIENT:
10205 break;
10206 default:
10207 return -EOPNOTSUPP;
10208 }
10209
10210 if (!info->attrs[NL80211_ATTR_MAC])
10211 return -EINVAL;
10212
10213 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10214
10215 wdev_lock(wdev);
10216 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10217 wdev_unlock(wdev);
10218
10219 return 0;
10220}
10221
4c476991
JB		 10222#define NL80211_FLAG_NEED_WIPHY 0x01
10223#define NL80211_FLAG_NEED_NETDEV 0x02
10224#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10225#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10226#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10227 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10228#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10229/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10230#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10231 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10232#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10233
f84f771d 10234static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10235 struct genl_info *info)
10236{
10237 struct cfg80211_registered_device *rdev;
89a54e48 10238 struct wireless_dev *wdev;
4c476991 10239 struct net_device *dev;
4c476991
JB		 10240 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10241
10242 if (rtnl)
10243 rtnl_lock();
10244
10245 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10246 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10247 if (IS_ERR(rdev)) {
10248 if (rtnl)
10249 rtnl_unlock();
10250 return PTR_ERR(rdev);
10251 }
10252 info->user_ptr[0] = rdev;
1bf614ef
JB		 10253 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10254 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10255 ASSERT_RTNL();
10256
89a54e48
JB		 10257 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10258 info->attrs);
10259 if (IS_ERR(wdev)) {
4c476991
JB		 10260 if (rtnl)
10261 rtnl_unlock();
89a54e48 10262 return PTR_ERR(wdev);
4c476991 10263 }
89a54e48 10264
89a54e48 10265 dev = wdev->netdev;
f26cbf40 10266 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10267
1bf614ef
JB		 10268 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10269 if (!dev) {
1bf614ef
JB		 10270 if (rtnl)
10271 rtnl_unlock();
10272 return -EINVAL;
10273 }
10274
10275 info->user_ptr[1] = dev;
10276 } else {
10277 info->user_ptr[1] = wdev;
41265714 10278 }
1bf614ef
JB		 10279
10280 if (dev) {
10281 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10282 !netif_running(dev)) {
1bf614ef
JB		 10283 if (rtnl)
10284 rtnl_unlock();
10285 return -ENETDOWN;
10286 }
10287
10288 dev_hold(dev);
98104fde
JB		 10289 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10290 if (!wdev->p2p_started) {
98104fde
JB		 10291 if (rtnl)
10292 rtnl_unlock();
10293 return -ENETDOWN;
10294 }
41265714 10295 }
89a54e48 10296
4c476991 10297 info->user_ptr[0] = rdev;
4c476991
JB		 10298 }
10299
10300 return 0;
10301}
10302
f84f771d 10303static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10304 struct genl_info *info)
10305{
1bf614ef
JB		 10306 if (info->user_ptr[1]) {
10307 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10308 struct wireless_dev *wdev = info->user_ptr[1];
10309
10310 if (wdev->netdev)
10311 dev_put(wdev->netdev);
10312 } else {
10313 dev_put(info->user_ptr[1]);
10314 }
10315 }
5393b917 10316
4c476991
JB		 10317 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10318 rtnl_unlock();
5393b917
JB		 10319
10320 /* If needed, clear the netlink message payload from the SKB
10321 * as it might contain key data that shouldn't stick around on
10322 * the heap after the SKB is freed. The netlink message header
10323 * is still needed for further processing, so leave it intact.
10324 */
10325 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10326 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10327
10328 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10329 }
4c476991
JB		 10330}
10331
4534de83 10332static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10333 {
10334 .cmd = NL80211_CMD_GET_WIPHY,
10335 .doit = nl80211_get_wiphy,
10336 .dumpit = nl80211_dump_wiphy,
86e8cf98 10337 .done = nl80211_dump_wiphy_done,
55682965
JB		 10338 .policy = nl80211_policy,
10339 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10340 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10341 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10342 },
10343 {
10344 .cmd = NL80211_CMD_SET_WIPHY,
10345 .doit = nl80211_set_wiphy,
10346 .policy = nl80211_policy,
10347 .flags = GENL_ADMIN_PERM,
4c476991 10348 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10349 },
10350 {
10351 .cmd = NL80211_CMD_GET_INTERFACE,
10352 .doit = nl80211_get_interface,
10353 .dumpit = nl80211_dump_interface,
10354 .policy = nl80211_policy,
10355 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10356 .internal_flags = NL80211_FLAG_NEED_WDEV |
10357 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10358 },
10359 {
10360 .cmd = NL80211_CMD_SET_INTERFACE,
10361 .doit = nl80211_set_interface,
10362 .policy = nl80211_policy,
10363 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10364 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10365 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10366 },
10367 {
10368 .cmd = NL80211_CMD_NEW_INTERFACE,
10369 .doit = nl80211_new_interface,
10370 .policy = nl80211_policy,
10371 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10372 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10373 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10374 },
10375 {
10376 .cmd = NL80211_CMD_DEL_INTERFACE,
10377 .doit = nl80211_del_interface,
10378 .policy = nl80211_policy,
41ade00f 10379 .flags = GENL_ADMIN_PERM,
84efbb84 10380 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10381 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10382 },
10383 {
10384 .cmd = NL80211_CMD_GET_KEY,
10385 .doit = nl80211_get_key,
10386 .policy = nl80211_policy,
10387 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10388 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10389 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10390 },
10391 {
10392 .cmd = NL80211_CMD_SET_KEY,
10393 .doit = nl80211_set_key,
10394 .policy = nl80211_policy,
10395 .flags = GENL_ADMIN_PERM,
41265714 10396 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10397 NL80211_FLAG_NEED_RTNL |
10398 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10399 },
10400 {
10401 .cmd = NL80211_CMD_NEW_KEY,
10402 .doit = nl80211_new_key,
10403 .policy = nl80211_policy,
10404 .flags = GENL_ADMIN_PERM,
41265714 10405 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10406 NL80211_FLAG_NEED_RTNL |
10407 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10408 },
10409 {
10410 .cmd = NL80211_CMD_DEL_KEY,
10411 .doit = nl80211_del_key,
10412 .policy = nl80211_policy,
55682965 10413 .flags = GENL_ADMIN_PERM,
41265714 10414 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10415 NL80211_FLAG_NEED_RTNL,
55682965 10416 },
ed1b6cc7
JB		 10417 {
10418 .cmd = NL80211_CMD_SET_BEACON,
10419 .policy = nl80211_policy,
10420 .flags = GENL_ADMIN_PERM,
8860020e 10421 .doit = nl80211_set_beacon,
2b5f8b0b 10422 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10423 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10424 },
10425 {
8860020e 10426 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10427 .policy = nl80211_policy,
10428 .flags = GENL_ADMIN_PERM,
8860020e 10429 .doit = nl80211_start_ap,
2b5f8b0b 10430 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10431 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10432 },
10433 {
8860020e 10434 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10435 .policy = nl80211_policy,
10436 .flags = GENL_ADMIN_PERM,
8860020e 10437 .doit = nl80211_stop_ap,
2b5f8b0b 10438 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10439 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10440 },
5727ef1b
JB		 10441 {
10442 .cmd = NL80211_CMD_GET_STATION,
10443 .doit = nl80211_get_station,
2ec600d6 10444 .dumpit = nl80211_dump_station,
5727ef1b 10445 .policy = nl80211_policy,
4c476991
JB		 10446 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10447 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10448 },
10449 {
10450 .cmd = NL80211_CMD_SET_STATION,
10451 .doit = nl80211_set_station,
10452 .policy = nl80211_policy,
10453 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10454 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10455 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10456 },
10457 {
10458 .cmd = NL80211_CMD_NEW_STATION,
10459 .doit = nl80211_new_station,
10460 .policy = nl80211_policy,
10461 .flags = GENL_ADMIN_PERM,
41265714 10462 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10463 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10464 },
10465 {
10466 .cmd = NL80211_CMD_DEL_STATION,
10467 .doit = nl80211_del_station,
10468 .policy = nl80211_policy,
2ec600d6 10469 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10470 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10471 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10472 },
10473 {
10474 .cmd = NL80211_CMD_GET_MPATH,
10475 .doit = nl80211_get_mpath,
10476 .dumpit = nl80211_dump_mpath,
10477 .policy = nl80211_policy,
10478 .flags = GENL_ADMIN_PERM,
41265714 10479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10480 NL80211_FLAG_NEED_RTNL,
2ec600d6 10481 },
66be7d2b
HR		 10482 {
10483 .cmd = NL80211_CMD_GET_MPP,
10484 .doit = nl80211_get_mpp,
10485 .dumpit = nl80211_dump_mpp,
10486 .policy = nl80211_policy,
10487 .flags = GENL_ADMIN_PERM,
10488 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10489 NL80211_FLAG_NEED_RTNL,
10490 },
2ec600d6
LCC		 10491 {
10492 .cmd = NL80211_CMD_SET_MPATH,
10493 .doit = nl80211_set_mpath,
10494 .policy = nl80211_policy,
10495 .flags = GENL_ADMIN_PERM,
41265714 10496 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10497 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10498 },
10499 {
10500 .cmd = NL80211_CMD_NEW_MPATH,
10501 .doit = nl80211_new_mpath,
10502 .policy = nl80211_policy,
10503 .flags = GENL_ADMIN_PERM,
41265714 10504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10505 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10506 },
10507 {
10508 .cmd = NL80211_CMD_DEL_MPATH,
10509 .doit = nl80211_del_mpath,
10510 .policy = nl80211_policy,
9f1ba906 10511 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10513 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10514 },
10515 {
10516 .cmd = NL80211_CMD_SET_BSS,
10517 .doit = nl80211_set_bss,
10518 .policy = nl80211_policy,
b2e1b302 10519 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10521 NL80211_FLAG_NEED_RTNL,
b2e1b302 10522 },
f130347c
LR		 10523 {
10524 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10525 .doit = nl80211_get_reg_do,
10526 .dumpit = nl80211_get_reg_dump,
f130347c 10527 .policy = nl80211_policy,
5fe231e8 10528 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10529 /* can be retrieved by unprivileged users */
10530 },
b2e1b302
LR		 10531 {
10532 .cmd = NL80211_CMD_SET_REG,
10533 .doit = nl80211_set_reg,
10534 .policy = nl80211_policy,
10535 .flags = GENL_ADMIN_PERM,
5fe231e8 10536 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10537 },
10538 {
10539 .cmd = NL80211_CMD_REQ_SET_REG,
10540 .doit = nl80211_req_set_reg,
10541 .policy = nl80211_policy,
93da9cc1 10542 .flags = GENL_ADMIN_PERM,
10543 },
10544 {
24bdd9f4
JC		 10545 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10546 .doit = nl80211_get_mesh_config,
93da9cc1 10547 .policy = nl80211_policy,
10548 /* can be retrieved by unprivileged users */
2b5f8b0b 10549 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10550 NL80211_FLAG_NEED_RTNL,
93da9cc1 10551 },
10552 {
24bdd9f4
JC		 10553 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10554 .doit = nl80211_update_mesh_config,
93da9cc1 10555 .policy = nl80211_policy,
9aed3cc1 10556 .flags = GENL_ADMIN_PERM,
29cbe68c 10557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10558 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10559 },
2a519311
JB		 10560 {
10561 .cmd = NL80211_CMD_TRIGGER_SCAN,
10562 .doit = nl80211_trigger_scan,
10563 .policy = nl80211_policy,
10564 .flags = GENL_ADMIN_PERM,
fd014284 10565 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10566 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10567 },
10568 {
10569 .cmd = NL80211_CMD_GET_SCAN,
10570 .policy = nl80211_policy,
10571 .dumpit = nl80211_dump_scan,
10572 },
807f8a8c
LC		 10573 {
10574 .cmd = NL80211_CMD_START_SCHED_SCAN,
10575 .doit = nl80211_start_sched_scan,
10576 .policy = nl80211_policy,
10577 .flags = GENL_ADMIN_PERM,
10578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10579 NL80211_FLAG_NEED_RTNL,
10580 },
10581 {
10582 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10583 .doit = nl80211_stop_sched_scan,
10584 .policy = nl80211_policy,
10585 .flags = GENL_ADMIN_PERM,
10586 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10587 NL80211_FLAG_NEED_RTNL,
10588 },
636a5d36
JM		 10589 {
10590 .cmd = NL80211_CMD_AUTHENTICATE,
10591 .doit = nl80211_authenticate,
10592 .policy = nl80211_policy,
10593 .flags = GENL_ADMIN_PERM,
41265714 10594 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10595 NL80211_FLAG_NEED_RTNL |
10596 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10597 },
10598 {
10599 .cmd = NL80211_CMD_ASSOCIATE,
10600 .doit = nl80211_associate,
10601 .policy = nl80211_policy,
10602 .flags = GENL_ADMIN_PERM,
41265714 10603 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10604 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10605 },
10606 {
10607 .cmd = NL80211_CMD_DEAUTHENTICATE,
10608 .doit = nl80211_deauthenticate,
10609 .policy = nl80211_policy,
10610 .flags = GENL_ADMIN_PERM,
41265714 10611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10612 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10613 },
10614 {
10615 .cmd = NL80211_CMD_DISASSOCIATE,
10616 .doit = nl80211_disassociate,
10617 .policy = nl80211_policy,
10618 .flags = GENL_ADMIN_PERM,
41265714 10619 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10620 NL80211_FLAG_NEED_RTNL,
636a5d36 10621 },
04a773ad
JB		 10622 {
10623 .cmd = NL80211_CMD_JOIN_IBSS,
10624 .doit = nl80211_join_ibss,
10625 .policy = nl80211_policy,
10626 .flags = GENL_ADMIN_PERM,
41265714 10627 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10628 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10629 },
10630 {
10631 .cmd = NL80211_CMD_LEAVE_IBSS,
10632 .doit = nl80211_leave_ibss,
10633 .policy = nl80211_policy,
10634 .flags = GENL_ADMIN_PERM,
41265714 10635 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10636 NL80211_FLAG_NEED_RTNL,
04a773ad 10637 },
aff89a9b
JB		 10638#ifdef CONFIG_NL80211_TESTMODE
10639 {
10640 .cmd = NL80211_CMD_TESTMODE,
10641 .doit = nl80211_testmode_do,
71063f0e 10642 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10643 .policy = nl80211_policy,
10644 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10645 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10646 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10647 },
10648#endif
b23aa676
SO		 10649 {
10650 .cmd = NL80211_CMD_CONNECT,
10651 .doit = nl80211_connect,
10652 .policy = nl80211_policy,
10653 .flags = GENL_ADMIN_PERM,
41265714 10654 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10655 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10656 },
10657 {
10658 .cmd = NL80211_CMD_DISCONNECT,
10659 .doit = nl80211_disconnect,
10660 .policy = nl80211_policy,
10661 .flags = GENL_ADMIN_PERM,
41265714 10662 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10663 NL80211_FLAG_NEED_RTNL,
b23aa676 10664 },
463d0183
JB		 10665 {
10666 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10667 .doit = nl80211_wiphy_netns,
10668 .policy = nl80211_policy,
10669 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10670 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10671 NL80211_FLAG_NEED_RTNL,
463d0183 10672 },
61fa713c
HS		 10673 {
10674 .cmd = NL80211_CMD_GET_SURVEY,
10675 .policy = nl80211_policy,
10676 .dumpit = nl80211_dump_survey,
10677 },
67fbb16b
SO		 10678 {
10679 .cmd = NL80211_CMD_SET_PMKSA,
10680 .doit = nl80211_setdel_pmksa,
10681 .policy = nl80211_policy,
10682 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10683 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10684 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10685 },
10686 {
10687 .cmd = NL80211_CMD_DEL_PMKSA,
10688 .doit = nl80211_setdel_pmksa,
10689 .policy = nl80211_policy,
10690 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10692 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10693 },
10694 {
10695 .cmd = NL80211_CMD_FLUSH_PMKSA,
10696 .doit = nl80211_flush_pmksa,
10697 .policy = nl80211_policy,
10698 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10700 NL80211_FLAG_NEED_RTNL,
67fbb16b 10701 },
9588bbd5
JM		 10702 {
10703 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10704 .doit = nl80211_remain_on_channel,
10705 .policy = nl80211_policy,
10706 .flags = GENL_ADMIN_PERM,
71bbc994 10707 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10708 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10709 },
10710 {
10711 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10712 .doit = nl80211_cancel_remain_on_channel,
10713 .policy = nl80211_policy,
10714 .flags = GENL_ADMIN_PERM,
71bbc994 10715 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10716 NL80211_FLAG_NEED_RTNL,
9588bbd5 10717 },
13ae75b1
JM		 10718 {
10719 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10720 .doit = nl80211_set_tx_bitrate_mask,
10721 .policy = nl80211_policy,
10722 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10723 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10724 NL80211_FLAG_NEED_RTNL,
13ae75b1 10725 },
026331c4 10726 {
2e161f78
JB		 10727 .cmd = NL80211_CMD_REGISTER_FRAME,
10728 .doit = nl80211_register_mgmt,
026331c4
JM		 10729 .policy = nl80211_policy,
10730 .flags = GENL_ADMIN_PERM,
71bbc994 10731 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10732 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10733 },
10734 {
2e161f78
JB		 10735 .cmd = NL80211_CMD_FRAME,
10736 .doit = nl80211_tx_mgmt,
026331c4 10737 .policy = nl80211_policy,
f7ca38df 10738 .flags = GENL_ADMIN_PERM,
71bbc994 10739 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10740 NL80211_FLAG_NEED_RTNL,
10741 },
10742 {
10743 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10744 .doit = nl80211_tx_mgmt_cancel_wait,
10745 .policy = nl80211_policy,
026331c4 10746 .flags = GENL_ADMIN_PERM,
71bbc994 10747 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10748 NL80211_FLAG_NEED_RTNL,
026331c4 10749 },
ffb9eb3d
KV		 10750 {
10751 .cmd = NL80211_CMD_SET_POWER_SAVE,
10752 .doit = nl80211_set_power_save,
10753 .policy = nl80211_policy,
10754 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10755 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10756 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10757 },
10758 {
10759 .cmd = NL80211_CMD_GET_POWER_SAVE,
10760 .doit = nl80211_get_power_save,
10761 .policy = nl80211_policy,
10762 /* can be retrieved by unprivileged users */
4c476991
JB		 10763 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10764 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10765 },
d6dc1a38
JO		 10766 {
10767 .cmd = NL80211_CMD_SET_CQM,
10768 .doit = nl80211_set_cqm,
10769 .policy = nl80211_policy,
10770 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10771 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10772 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10773 },
f444de05
JB		 10774 {
10775 .cmd = NL80211_CMD_SET_CHANNEL,
10776 .doit = nl80211_set_channel,
10777 .policy = nl80211_policy,
10778 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10779 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10780 NL80211_FLAG_NEED_RTNL,
f444de05 10781 },
e8347eba
BJ		 10782 {
10783 .cmd = NL80211_CMD_SET_WDS_PEER,
10784 .doit = nl80211_set_wds_peer,
10785 .policy = nl80211_policy,
10786 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10787 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10788 NL80211_FLAG_NEED_RTNL,
e8347eba 10789 },
29cbe68c
JB		 10790 {
10791 .cmd = NL80211_CMD_JOIN_MESH,
10792 .doit = nl80211_join_mesh,
10793 .policy = nl80211_policy,
10794 .flags = GENL_ADMIN_PERM,
10795 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10796 NL80211_FLAG_NEED_RTNL,
10797 },
10798 {
10799 .cmd = NL80211_CMD_LEAVE_MESH,
10800 .doit = nl80211_leave_mesh,
10801 .policy = nl80211_policy,
10802 .flags = GENL_ADMIN_PERM,
10803 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10804 NL80211_FLAG_NEED_RTNL,
10805 },
6e0bd6c3
RL		 10806 {
10807 .cmd = NL80211_CMD_JOIN_OCB,
10808 .doit = nl80211_join_ocb,
10809 .policy = nl80211_policy,
10810 .flags = GENL_ADMIN_PERM,
10811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10812 NL80211_FLAG_NEED_RTNL,
10813 },
10814 {
10815 .cmd = NL80211_CMD_LEAVE_OCB,
10816 .doit = nl80211_leave_ocb,
10817 .policy = nl80211_policy,
10818 .flags = GENL_ADMIN_PERM,
10819 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10820 NL80211_FLAG_NEED_RTNL,
10821 },
dfb89c56 10822#ifdef CONFIG_PM
ff1b6e69
JB		 10823 {
10824 .cmd = NL80211_CMD_GET_WOWLAN,
10825 .doit = nl80211_get_wowlan,
10826 .policy = nl80211_policy,
10827 /* can be retrieved by unprivileged users */
10828 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10829 NL80211_FLAG_NEED_RTNL,
10830 },
10831 {
10832 .cmd = NL80211_CMD_SET_WOWLAN,
10833 .doit = nl80211_set_wowlan,
10834 .policy = nl80211_policy,
10835 .flags = GENL_ADMIN_PERM,
10836 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10837 NL80211_FLAG_NEED_RTNL,
10838 },
dfb89c56 10839#endif
e5497d76
JB		 10840 {
10841 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10842 .doit = nl80211_set_rekey_data,
10843 .policy = nl80211_policy,
10844 .flags = GENL_ADMIN_PERM,
10845 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10846 NL80211_FLAG_NEED_RTNL |
10847 NL80211_FLAG_CLEAR_SKB,
e5497d76 10848 },
109086ce
AN		 10849 {
10850 .cmd = NL80211_CMD_TDLS_MGMT,
10851 .doit = nl80211_tdls_mgmt,
10852 .policy = nl80211_policy,
10853 .flags = GENL_ADMIN_PERM,
10854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10855 NL80211_FLAG_NEED_RTNL,
10856 },
10857 {
10858 .cmd = NL80211_CMD_TDLS_OPER,
10859 .doit = nl80211_tdls_oper,
10860 .policy = nl80211_policy,
10861 .flags = GENL_ADMIN_PERM,
10862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10863 NL80211_FLAG_NEED_RTNL,
10864 },
28946da7
JB		 10865 {
10866 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10867 .doit = nl80211_register_unexpected_frame,
10868 .policy = nl80211_policy,
10869 .flags = GENL_ADMIN_PERM,
10870 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10871 NL80211_FLAG_NEED_RTNL,
10872 },
7f6cf311
JB		 10873 {
10874 .cmd = NL80211_CMD_PROBE_CLIENT,
10875 .doit = nl80211_probe_client,
10876 .policy = nl80211_policy,
10877 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10879 NL80211_FLAG_NEED_RTNL,
10880 },
5e760230
JB		 10881 {
10882 .cmd = NL80211_CMD_REGISTER_BEACONS,
10883 .doit = nl80211_register_beacons,
10884 .policy = nl80211_policy,
10885 .flags = GENL_ADMIN_PERM,
10886 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10887 NL80211_FLAG_NEED_RTNL,
10888 },
1d9d9213
SW		 10889 {
10890 .cmd = NL80211_CMD_SET_NOACK_MAP,
10891 .doit = nl80211_set_noack_map,
10892 .policy = nl80211_policy,
10893 .flags = GENL_ADMIN_PERM,
10894 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10895 NL80211_FLAG_NEED_RTNL,
10896 },
98104fde
JB		 10897 {
10898 .cmd = NL80211_CMD_START_P2P_DEVICE,
10899 .doit = nl80211_start_p2p_device,
10900 .policy = nl80211_policy,
10901 .flags = GENL_ADMIN_PERM,
10902 .internal_flags = NL80211_FLAG_NEED_WDEV |
10903 NL80211_FLAG_NEED_RTNL,
10904 },
10905 {
10906 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10907 .doit = nl80211_stop_p2p_device,
10908 .policy = nl80211_policy,
10909 .flags = GENL_ADMIN_PERM,
10910 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10911 NL80211_FLAG_NEED_RTNL,
10912 },
f4e583c8
AQ		 10913 {
10914 .cmd = NL80211_CMD_SET_MCAST_RATE,
10915 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10916 .policy = nl80211_policy,
10917 .flags = GENL_ADMIN_PERM,
10918 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10919 NL80211_FLAG_NEED_RTNL,
10920 },
10921 {
10922 .cmd = NL80211_CMD_SET_MAC_ACL,
10923 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10924 .policy = nl80211_policy,
10925 .flags = GENL_ADMIN_PERM,
10926 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10927 NL80211_FLAG_NEED_RTNL,
10928 },
04f39047
SW		 10929 {
10930 .cmd = NL80211_CMD_RADAR_DETECT,
10931 .doit = nl80211_start_radar_detection,
10932 .policy = nl80211_policy,
10933 .flags = GENL_ADMIN_PERM,
10934 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10935 NL80211_FLAG_NEED_RTNL,
10936 },
3713b4e3
JB		 10937 {
10938 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10939 .doit = nl80211_get_protocol_features,
10940 .policy = nl80211_policy,
10941 },
355199e0
JM		 10942 {
10943 .cmd = NL80211_CMD_UPDATE_FT_IES,
10944 .doit = nl80211_update_ft_ies,
10945 .policy = nl80211_policy,
10946 .flags = GENL_ADMIN_PERM,
10947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10948 NL80211_FLAG_NEED_RTNL,
10949 },
5de17984
AS		 10950 {
10951 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10952 .doit = nl80211_crit_protocol_start,
10953 .policy = nl80211_policy,
10954 .flags = GENL_ADMIN_PERM,
10955 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10956 NL80211_FLAG_NEED_RTNL,
10957 },
10958 {
10959 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10960 .doit = nl80211_crit_protocol_stop,
10961 .policy = nl80211_policy,
10962 .flags = GENL_ADMIN_PERM,
10963 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10964 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10965 },
10966 {
10967 .cmd = NL80211_CMD_GET_COALESCE,
10968 .doit = nl80211_get_coalesce,
10969 .policy = nl80211_policy,
10970 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10971 NL80211_FLAG_NEED_RTNL,
10972 },
10973 {
10974 .cmd = NL80211_CMD_SET_COALESCE,
10975 .doit = nl80211_set_coalesce,
10976 .policy = nl80211_policy,
10977 .flags = GENL_ADMIN_PERM,
10978 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10979 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10980 },
10981 {
10982 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10983 .doit = nl80211_channel_switch,
10984 .policy = nl80211_policy,
10985 .flags = GENL_ADMIN_PERM,
10986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10987 NL80211_FLAG_NEED_RTNL,
10988 },
ad7e718c
JB		 10989 {
10990 .cmd = NL80211_CMD_VENDOR,
10991 .doit = nl80211_vendor_cmd,
10992 .policy = nl80211_policy,
10993 .flags = GENL_ADMIN_PERM,
10994 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10995 NL80211_FLAG_NEED_RTNL,
10996 },
fa9ffc74
KP		 10997 {
10998 .cmd = NL80211_CMD_SET_QOS_MAP,
10999 .doit = nl80211_set_qos_map,
11000 .policy = nl80211_policy,
11001 .flags = GENL_ADMIN_PERM,
11002 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11003 NL80211_FLAG_NEED_RTNL,
11004 },
960d01ac
JB		 11005 {
11006 .cmd = NL80211_CMD_ADD_TX_TS,
11007 .doit = nl80211_add_tx_ts,
11008 .policy = nl80211_policy,
11009 .flags = GENL_ADMIN_PERM,
11010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11011 NL80211_FLAG_NEED_RTNL,
11012 },
11013 {
11014 .cmd = NL80211_CMD_DEL_TX_TS,
11015 .doit = nl80211_del_tx_ts,
11016 .policy = nl80211_policy,
11017 .flags = GENL_ADMIN_PERM,
11018 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11019 NL80211_FLAG_NEED_RTNL,
11020 },
1057d35e
AN		 11021 {
11022 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11023 .doit = nl80211_tdls_channel_switch,
11024 .policy = nl80211_policy,
11025 .flags = GENL_ADMIN_PERM,
11026 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11027 NL80211_FLAG_NEED_RTNL,
11028 },
11029 {
11030 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11031 .doit = nl80211_tdls_cancel_channel_switch,
11032 .policy = nl80211_policy,
11033 .flags = GENL_ADMIN_PERM,
11034 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11035 NL80211_FLAG_NEED_RTNL,
11036 },
55682965 11037};
9588bbd5 11038
55682965
JB		 11039/* notification functions */
11040
3bb20556
JB		 11041void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11042 enum nl80211_commands cmd)
55682965
JB		 11043{
11044 struct sk_buff *msg;
86e8cf98 11045 struct nl80211_dump_wiphy_state state = {};
55682965 11046
3bb20556
JB		 11047 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11048 cmd != NL80211_CMD_DEL_WIPHY);
11049
fd2120ca 11050 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11051 if (!msg)
11052 return;
11053
3bb20556 11054 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11055 nlmsg_free(msg);
11056 return;
11057 }
11058
68eb5503 11059 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11060 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11061}
11062
362a415d
JB		 11063static int nl80211_add_scan_req(struct sk_buff *msg,
11064 struct cfg80211_registered_device *rdev)
11065{
11066 struct cfg80211_scan_request *req = rdev->scan_req;
11067 struct nlattr *nest;
11068 int i;
11069
11070 if (WARN_ON(!req))
11071 return 0;
11072
11073 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11074 if (!nest)
11075 goto nla_put_failure;
9360ffd1
DM		 11076 for (i = 0; i < req->n_ssids; i++) {
11077 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11078 goto nla_put_failure;
11079 }
362a415d
JB		 11080 nla_nest_end(msg, nest);
11081
11082 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11083 if (!nest)
11084 goto nla_put_failure;
9360ffd1
DM		 11085 for (i = 0; i < req->n_channels; i++) {
11086 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11087 goto nla_put_failure;
11088 }
362a415d
JB		 11089 nla_nest_end(msg, nest);
11090
9360ffd1
DM		 11091 if (req->ie &&
11092 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11093 goto nla_put_failure;
362a415d 11094
ae917c9f
JB		 11095 if (req->flags &&
11096 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11097 goto nla_put_failure;
ed473771 11098
362a415d
JB		 11099 return 0;
11100 nla_put_failure:
11101 return -ENOBUFS;
11102}
11103
a538e2d5
JB		 11104static int nl80211_send_scan_msg(struct sk_buff *msg,
11105 struct cfg80211_registered_device *rdev,
fd014284 11106 struct wireless_dev *wdev,
15e47304 11107 u32 portid, u32 seq, int flags,
a538e2d5 11108 u32 cmd)
2a519311
JB		 11109{
11110 void *hdr;
11111
15e47304 11112 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11113 if (!hdr)
11114 return -1;
11115
9360ffd1 11116 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11117 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11118 wdev->netdev->ifindex)) ||
11119 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11120 goto nla_put_failure;
2a519311 11121
362a415d
JB		 11122 /* ignore errors and send incomplete event anyway */
11123 nl80211_add_scan_req(msg, rdev);
2a519311 11124
053c095a
JB		 11125 genlmsg_end(msg, hdr);
11126 return 0;
2a519311
JB		 11127
11128 nla_put_failure:
11129 genlmsg_cancel(msg, hdr);
11130 return -EMSGSIZE;
11131}
11132
807f8a8c
LC		 11133static int
11134nl80211_send_sched_scan_msg(struct sk_buff *msg,
11135 struct cfg80211_registered_device *rdev,
11136 struct net_device *netdev,
15e47304 11137 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11138{
11139 void *hdr;
11140
15e47304 11141 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11142 if (!hdr)
11143 return -1;
11144
9360ffd1
DM		 11145 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11146 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11147 goto nla_put_failure;
807f8a8c 11148
053c095a
JB		 11149 genlmsg_end(msg, hdr);
11150 return 0;
807f8a8c
LC		 11151
11152 nla_put_failure:
11153 genlmsg_cancel(msg, hdr);
11154 return -EMSGSIZE;
11155}
11156
a538e2d5 11157void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11158 struct wireless_dev *wdev)
a538e2d5
JB		 11159{
11160 struct sk_buff *msg;
11161
58050fce 11162 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11163 if (!msg)
11164 return;
11165
fd014284 11166 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11167 NL80211_CMD_TRIGGER_SCAN) < 0) {
11168 nlmsg_free(msg);
11169 return;
11170 }
11171
68eb5503 11172 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11173 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11174}
11175
f9d15d16
JB		 11176struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11177 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11178{
11179 struct sk_buff *msg;
11180
fd2120ca 11181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11182 if (!msg)
f9d15d16 11183 return NULL;
2a519311 11184
fd014284 11185 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11186 aborted ? NL80211_CMD_SCAN_ABORTED :
11187 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11188 nlmsg_free(msg);
f9d15d16 11189 return NULL;
2a519311
JB		 11190 }
11191
f9d15d16 11192 return msg;
2a519311
JB		 11193}
11194
f9d15d16
JB		 11195void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11196 struct sk_buff *msg)
2a519311 11197{
2a519311
JB		 11198 if (!msg)
11199 return;
11200
68eb5503 11201 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11202 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11203}
11204
807f8a8c
LC		 11205void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11206 struct net_device *netdev)
11207{
11208 struct sk_buff *msg;
11209
11210 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11211 if (!msg)
11212 return;
11213
11214 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11215 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11216 nlmsg_free(msg);
11217 return;
11218 }
11219
68eb5503 11220 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11221 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11222}
11223
11224void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11225 struct net_device *netdev, u32 cmd)
11226{
11227 struct sk_buff *msg;
11228
58050fce 11229 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11230 if (!msg)
11231 return;
11232
11233 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11234 nlmsg_free(msg);
11235 return;
11236 }
11237
68eb5503 11238 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11239 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11240}
11241
b0d7aa59
JD		 11242static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11243 struct regulatory_request *request)
73d54c9e 11244{
73d54c9e 11245 /* Userspace can always count this one always being set */
9360ffd1
DM		 11246 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11247 goto nla_put_failure;
11248
11249 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11250 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11251 NL80211_REGDOM_TYPE_WORLD))
11252 goto nla_put_failure;
11253 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11254 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11255 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11256 goto nla_put_failure;
11257 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11258 request->intersect) {
11259 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11260 NL80211_REGDOM_TYPE_INTERSECTION))
11261 goto nla_put_failure;
11262 } else {
11263 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11264 NL80211_REGDOM_TYPE_COUNTRY) ||
11265 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11266 request->alpha2))
11267 goto nla_put_failure;
11268 }
11269
ad30ca2c
AN		 11270 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11271 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11272
11273 if (wiphy &&
11274 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11275 goto nla_put_failure;
1bdd716c
AN		 11276
11277 if (wiphy &&
11278 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11279 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11280 goto nla_put_failure;
ad30ca2c 11281 }
73d54c9e 11282
b0d7aa59
JD		 11283 return true;
11284
11285nla_put_failure:
11286 return false;
11287}
11288
11289/*
11290 * This can happen on global regulatory changes or device specific settings
11291 * based on custom regulatory domains.
11292 */
11293void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11294 struct regulatory_request *request)
11295{
11296 struct sk_buff *msg;
11297 void *hdr;
11298
11299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11300 if (!msg)
11301 return;
11302
11303 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11304 if (!hdr) {
11305 nlmsg_free(msg);
11306 return;
11307 }
11308
11309 if (nl80211_reg_change_event_fill(msg, request) == false)
11310 goto nla_put_failure;
11311
3b7b72ee 11312 genlmsg_end(msg, hdr);
73d54c9e 11313
bc43b28c 11314 rcu_read_lock();
68eb5503 11315 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11316 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11317 rcu_read_unlock();
73d54c9e
LR		 11318
11319 return;
11320
11321nla_put_failure:
11322 genlmsg_cancel(msg, hdr);
11323 nlmsg_free(msg);
11324}
11325
6039f6d2
JM		 11326static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11327 struct net_device *netdev,
11328 const u8 *buf, size_t len,
b0b6aa2c
EP		 11329 enum nl80211_commands cmd, gfp_t gfp,
11330 int uapsd_queues)
6039f6d2
JM		 11331{
11332 struct sk_buff *msg;
11333 void *hdr;
11334
e6d6e342 11335 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11336 if (!msg)
11337 return;
11338
11339 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11340 if (!hdr) {
11341 nlmsg_free(msg);
11342 return;
11343 }
11344
9360ffd1
DM		 11345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11346 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11347 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11348 goto nla_put_failure;
6039f6d2 11349
b0b6aa2c
EP		 11350 if (uapsd_queues >= 0) {
11351 struct nlattr *nla_wmm =
11352 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11353 if (!nla_wmm)
11354 goto nla_put_failure;
11355
11356 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11357 uapsd_queues))
11358 goto nla_put_failure;
11359
11360 nla_nest_end(msg, nla_wmm);
11361 }
11362
3b7b72ee 11363 genlmsg_end(msg, hdr);
6039f6d2 11364
68eb5503 11365 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11366 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11367 return;
11368
11369 nla_put_failure:
11370 genlmsg_cancel(msg, hdr);
11371 nlmsg_free(msg);
11372}
11373
11374void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11375 struct net_device *netdev, const u8 *buf,
11376 size_t len, gfp_t gfp)
6039f6d2
JM		 11377{
11378 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11379 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11380}
11381
11382void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11383 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11384 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11385{
e6d6e342 11386 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11387 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11388}
11389
53b46b84 11390void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11391 struct net_device *netdev, const u8 *buf,
11392 size_t len, gfp_t gfp)
6039f6d2
JM		 11393{
11394 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11395 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11396}
11397
53b46b84
JM		 11398void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11399 struct net_device *netdev, const u8 *buf,
e6d6e342 11400 size_t len, gfp_t gfp)
6039f6d2
JM		 11401{
11402 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11403 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11404}
11405
6ff57cf8
JB		 11406void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11407 size_t len)
cf4e594e 11408{
947add36
JB		 11409 struct wireless_dev *wdev = dev->ieee80211_ptr;
11410 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11411 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11412 const struct ieee80211_mgmt *mgmt = (void *)buf;
11413 u32 cmd;
947add36 11414
6ff57cf8
JB		 11415 if (WARN_ON(len < 2))
11416 return;
cf4e594e 11417
6ff57cf8
JB		 11418 if (ieee80211_is_deauth(mgmt->frame_control))
11419 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11420 else
11421 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11422
6ff57cf8 11423 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11424 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11425}
6ff57cf8 11426EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11427
1b06bb40
LR		 11428static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11429 struct net_device *netdev, int cmd,
e6d6e342 11430 const u8 *addr, gfp_t gfp)
1965c853
JM		 11431{
11432 struct sk_buff *msg;
11433 void *hdr;
11434
e6d6e342 11435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11436 if (!msg)
11437 return;
11438
11439 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11440 if (!hdr) {
11441 nlmsg_free(msg);
11442 return;
11443 }
11444
9360ffd1
DM		 11445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11446 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11447 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11448 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11449 goto nla_put_failure;
1965c853 11450
3b7b72ee 11451 genlmsg_end(msg, hdr);
1965c853 11452
68eb5503 11453 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11454 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11455 return;
11456
11457 nla_put_failure:
11458 genlmsg_cancel(msg, hdr);
11459 nlmsg_free(msg);
11460}
11461
11462void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11463 struct net_device *netdev, const u8 *addr,
11464 gfp_t gfp)
1965c853
JM		 11465{
11466 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11467 addr, gfp);
1965c853
JM		 11468}
11469
11470void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11471 struct net_device *netdev, const u8 *addr,
11472 gfp_t gfp)
1965c853 11473{
e6d6e342
JB		 11474 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11475 addr, gfp);
1965c853
JM		 11476}
11477
b23aa676
SO		 11478void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11479 struct net_device *netdev, const u8 *bssid,
11480 const u8 *req_ie, size_t req_ie_len,
11481 const u8 *resp_ie, size_t resp_ie_len,
11482 u16 status, gfp_t gfp)
11483{
11484 struct sk_buff *msg;
11485 void *hdr;
11486
58050fce 11487 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11488 if (!msg)
11489 return;
11490
11491 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11492 if (!hdr) {
11493 nlmsg_free(msg);
11494 return;
11495 }
11496
9360ffd1
DM		 11497 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11498 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11499 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11500 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11501 (req_ie &&
11502 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11503 (resp_ie &&
11504 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11505 goto nla_put_failure;
b23aa676 11506
3b7b72ee 11507 genlmsg_end(msg, hdr);
b23aa676 11508
68eb5503 11509 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11510 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11511 return;
11512
11513 nla_put_failure:
11514 genlmsg_cancel(msg, hdr);
11515 nlmsg_free(msg);
11516
11517}
11518
11519void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11520 struct net_device *netdev, const u8 *bssid,
11521 const u8 *req_ie, size_t req_ie_len,
11522 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11523{
11524 struct sk_buff *msg;
11525 void *hdr;
11526
58050fce 11527 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11528 if (!msg)
11529 return;
11530
11531 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11532 if (!hdr) {
11533 nlmsg_free(msg);
11534 return;
11535 }
11536
9360ffd1
DM		 11537 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11538 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11539 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11540 (req_ie &&
11541 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11542 (resp_ie &&
11543 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11544 goto nla_put_failure;
b23aa676 11545
3b7b72ee 11546 genlmsg_end(msg, hdr);
b23aa676 11547
68eb5503 11548 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11549 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11550 return;
11551
11552 nla_put_failure:
11553 genlmsg_cancel(msg, hdr);
11554 nlmsg_free(msg);
11555
11556}
11557
11558void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11559 struct net_device *netdev, u16 reason,
667503dd 11560 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11561{
11562 struct sk_buff *msg;
11563 void *hdr;
11564
58050fce 11565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11566 if (!msg)
11567 return;
11568
11569 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11570 if (!hdr) {
11571 nlmsg_free(msg);
11572 return;
11573 }
11574
9360ffd1
DM		 11575 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11576 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11577 (from_ap && reason &&
11578 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11579 (from_ap &&
11580 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11581 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11582 goto nla_put_failure;
b23aa676 11583
3b7b72ee 11584 genlmsg_end(msg, hdr);
b23aa676 11585
68eb5503 11586 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11587 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11588 return;
11589
11590 nla_put_failure:
11591 genlmsg_cancel(msg, hdr);
11592 nlmsg_free(msg);
11593
11594}
11595
04a773ad
JB		 11596void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11597 struct net_device *netdev, const u8 *bssid,
11598 gfp_t gfp)
11599{
11600 struct sk_buff *msg;
11601 void *hdr;
11602
fd2120ca 11603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11604 if (!msg)
11605 return;
11606
11607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11608 if (!hdr) {
11609 nlmsg_free(msg);
11610 return;
11611 }
11612
9360ffd1
DM		 11613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11614 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11615 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11616 goto nla_put_failure;
04a773ad 11617
3b7b72ee 11618 genlmsg_end(msg, hdr);
04a773ad 11619
68eb5503 11620 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11621 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11622 return;
11623
11624 nla_put_failure:
11625 genlmsg_cancel(msg, hdr);
11626 nlmsg_free(msg);
11627}
11628
947add36
JB		 11629void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11630 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11631{
947add36 11632 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11633 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11634 struct sk_buff *msg;
11635 void *hdr;
11636
947add36
JB		 11637 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11638 return;
11639
11640 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11641
c93b5e71
JC		 11642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11643 if (!msg)
11644 return;
11645
11646 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11647 if (!hdr) {
11648 nlmsg_free(msg);
11649 return;
11650 }
11651
9360ffd1 11652 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11653 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11654 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11655 (ie_len && ie &&
11656 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11657 goto nla_put_failure;
c93b5e71 11658
3b7b72ee 11659 genlmsg_end(msg, hdr);
c93b5e71 11660
68eb5503 11661 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11662 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11663 return;
11664
11665 nla_put_failure:
11666 genlmsg_cancel(msg, hdr);
11667 nlmsg_free(msg);
11668}
947add36 11669EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11670
a3b8b056
JM		 11671void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11672 struct net_device *netdev, const u8 *addr,
11673 enum nl80211_key_type key_type, int key_id,
e6d6e342 11674 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11675{
11676 struct sk_buff *msg;
11677 void *hdr;
11678
e6d6e342 11679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11680 if (!msg)
11681 return;
11682
11683 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11684 if (!hdr) {
11685 nlmsg_free(msg);
11686 return;
11687 }
11688
9360ffd1
DM		 11689 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11690 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11691 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11692 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11693 (key_id != -1 &&
11694 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11695 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11696 goto nla_put_failure;
a3b8b056 11697
3b7b72ee 11698 genlmsg_end(msg, hdr);
a3b8b056 11699
68eb5503 11700 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11701 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11702 return;
11703
11704 nla_put_failure:
11705 genlmsg_cancel(msg, hdr);
11706 nlmsg_free(msg);
11707}
11708
6bad8766
LR		 11709void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11710 struct ieee80211_channel *channel_before,
11711 struct ieee80211_channel *channel_after)
11712{
11713 struct sk_buff *msg;
11714 void *hdr;
11715 struct nlattr *nl_freq;
11716
fd2120ca 11717 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11718 if (!msg)
11719 return;
11720
11721 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11722 if (!hdr) {
11723 nlmsg_free(msg);
11724 return;
11725 }
11726
11727 /*
11728 * Since we are applying the beacon hint to a wiphy we know its
11729 * wiphy_idx is valid
11730 */
9360ffd1
DM		 11731 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11732 goto nla_put_failure;
6bad8766
LR		 11733
11734 /* Before */
11735 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11736 if (!nl_freq)
11737 goto nla_put_failure;
cdc89b97 11738 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11739 goto nla_put_failure;
11740 nla_nest_end(msg, nl_freq);
11741
11742 /* After */
11743 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11744 if (!nl_freq)
11745 goto nla_put_failure;
cdc89b97 11746 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11747 goto nla_put_failure;
11748 nla_nest_end(msg, nl_freq);
11749
3b7b72ee 11750 genlmsg_end(msg, hdr);
6bad8766 11751
463d0183 11752 rcu_read_lock();
68eb5503 11753 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11754 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11755 rcu_read_unlock();
6bad8766
LR		 11756
11757 return;
11758
11759nla_put_failure:
11760 genlmsg_cancel(msg, hdr);
11761 nlmsg_free(msg);
11762}
11763
9588bbd5
JM		 11764static void nl80211_send_remain_on_chan_event(
11765 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11766 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11767 struct ieee80211_channel *chan,
9588bbd5
JM		 11768 unsigned int duration, gfp_t gfp)
11769{
11770 struct sk_buff *msg;
11771 void *hdr;
11772
11773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11774 if (!msg)
11775 return;
11776
11777 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11778 if (!hdr) {
11779 nlmsg_free(msg);
11780 return;
11781 }
11782
9360ffd1 11783 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11784 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11785 wdev->netdev->ifindex)) ||
00f53350 11786 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11787 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11788 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11789 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11790 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11791 goto nla_put_failure;
9588bbd5 11792
9360ffd1
DM		 11793 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11794 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11795 goto nla_put_failure;
9588bbd5 11796
3b7b72ee 11797 genlmsg_end(msg, hdr);
9588bbd5 11798
68eb5503 11799 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11800 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11801 return;
11802
11803 nla_put_failure:
11804 genlmsg_cancel(msg, hdr);
11805 nlmsg_free(msg);
11806}
11807
947add36
JB		 11808void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11809 struct ieee80211_channel *chan,
11810 unsigned int duration, gfp_t gfp)
9588bbd5 11811{
947add36 11812 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11813 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11814
11815 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11816 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11817 rdev, wdev, cookie, chan,
42d97a59 11818 duration, gfp);
9588bbd5 11819}
947add36 11820EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11821
947add36
JB		 11822void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11823 struct ieee80211_channel *chan,
11824 gfp_t gfp)
9588bbd5 11825{
947add36 11826 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11827 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11828
11829 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11830 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11831 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11832}
947add36 11833EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11834
947add36
JB		 11835void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11836 struct station_info *sinfo, gfp_t gfp)
98b62183 11837{
947add36 11838 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11839 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11840 struct sk_buff *msg;
11841
947add36
JB		 11842 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11843
58050fce 11844 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11845 if (!msg)
11846 return;
11847
cf5ead82 11848 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 11849 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11850 nlmsg_free(msg);
11851 return;
11852 }
11853
68eb5503 11854 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11855 NL80211_MCGRP_MLME, gfp);
98b62183 11856}
947add36 11857EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11858
cf5ead82
JB		 11859void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
11860 struct station_info *sinfo, gfp_t gfp)
ec15e68b 11861{
947add36 11862 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11863 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 11864 struct sk_buff *msg;
cf5ead82
JB		 11865 struct station_info empty_sinfo = {};
11866
11867 if (!sinfo)
11868 sinfo = &empty_sinfo;
ec15e68b 11869
947add36
JB		 11870 trace_cfg80211_del_sta(dev, mac_addr);
11871
58050fce 11872 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11873 if (!msg)
11874 return;
11875
cf5ead82 11876 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 11877 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 11878 nlmsg_free(msg);
11879 return;
11880 }
11881
68eb5503 11882 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11883 NL80211_MCGRP_MLME, gfp);
ec15e68b 11884}
cf5ead82 11885EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 11886
947add36
JB		 11887void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11888 enum nl80211_connect_failed_reason reason,
11889 gfp_t gfp)
ed44a951 11890{
947add36 11891 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11892 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11893 struct sk_buff *msg;
11894 void *hdr;
11895
11896 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11897 if (!msg)
11898 return;
11899
11900 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11901 if (!hdr) {
11902 nlmsg_free(msg);
11903 return;
11904 }
11905
11906 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11907 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11908 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11909 goto nla_put_failure;
11910
11911 genlmsg_end(msg, hdr);
11912
68eb5503 11913 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11914 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11915 return;
11916
11917 nla_put_failure:
11918 genlmsg_cancel(msg, hdr);
11919 nlmsg_free(msg);
11920}
947add36 11921EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11922
b92ab5d8
JB		 11923static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11924 const u8 *addr, gfp_t gfp)
28946da7
JB		 11925{
11926 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11927 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11928 struct sk_buff *msg;
11929 void *hdr;
15e47304 11930 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11931
15e47304 11932 if (!nlportid)
28946da7
JB		 11933 return false;
11934
11935 msg = nlmsg_new(100, gfp);
11936 if (!msg)
11937 return true;
11938
b92ab5d8 11939 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11940 if (!hdr) {
11941 nlmsg_free(msg);
11942 return true;
11943 }
11944
9360ffd1
DM		 11945 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11946 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11947 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11948 goto nla_put_failure;
28946da7 11949
9c90a9f6 11950 genlmsg_end(msg, hdr);
15e47304 11951 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11952 return true;
11953
11954 nla_put_failure:
11955 genlmsg_cancel(msg, hdr);
11956 nlmsg_free(msg);
11957 return true;
11958}
11959
947add36
JB		 11960bool cfg80211_rx_spurious_frame(struct net_device *dev,
11961 const u8 *addr, gfp_t gfp)
b92ab5d8 11962{
947add36
JB		 11963 struct wireless_dev *wdev = dev->ieee80211_ptr;
11964 bool ret;
11965
11966 trace_cfg80211_rx_spurious_frame(dev, addr);
11967
11968 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11969 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11970 trace_cfg80211_return_bool(false);
11971 return false;
11972 }
11973 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11974 addr, gfp);
11975 trace_cfg80211_return_bool(ret);
11976 return ret;
b92ab5d8 11977}
947add36 11978EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11979
947add36
JB		 11980bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11981 const u8 *addr, gfp_t gfp)
b92ab5d8 11982{
947add36
JB		 11983 struct wireless_dev *wdev = dev->ieee80211_ptr;
11984 bool ret;
11985
11986 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11987
11988 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11989 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11990 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11991 trace_cfg80211_return_bool(false);
11992 return false;
11993 }
11994 ret = __nl80211_unexpected_frame(dev,
11995 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11996 addr, gfp);
11997 trace_cfg80211_return_bool(ret);
11998 return ret;
b92ab5d8 11999}
947add36 12000EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12001
2e161f78 12002int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12003 struct wireless_dev *wdev, u32 nlportid,
804483e9 12004 int freq, int sig_dbm,
19504cf5 12005 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12006{
71bbc994 12007 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12008 struct sk_buff *msg;
12009 void *hdr;
026331c4
JM		 12010
12011 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12012 if (!msg)
12013 return -ENOMEM;
12014
2e161f78 12015 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12016 if (!hdr) {
12017 nlmsg_free(msg);
12018 return -ENOMEM;
12019 }
12020
9360ffd1 12021 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12022 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12023 netdev->ifindex)) ||
a838490b 12024 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12025 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12026 (sig_dbm &&
12027 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12028 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12029 (flags &&
12030 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12031 goto nla_put_failure;
026331c4 12032
3b7b72ee 12033 genlmsg_end(msg, hdr);
026331c4 12034
15e47304 12035 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12036
12037 nla_put_failure:
12038 genlmsg_cancel(msg, hdr);
12039 nlmsg_free(msg);
12040 return -ENOBUFS;
12041}
12042
947add36
JB		 12043void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12044 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12045{
947add36 12046 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12047 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12048 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12049 struct sk_buff *msg;
12050 void *hdr;
12051
947add36
JB		 12052 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12053
026331c4
JM		 12054 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12055 if (!msg)
12056 return;
12057
2e161f78 12058 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12059 if (!hdr) {
12060 nlmsg_free(msg);
12061 return;
12062 }
12063
9360ffd1 12064 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12065 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12066 netdev->ifindex)) ||
a838490b 12067 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12068 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12069 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12070 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12071 goto nla_put_failure;
026331c4 12072
3b7b72ee 12073 genlmsg_end(msg, hdr);
026331c4 12074
68eb5503 12075 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12076 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12077 return;
12078
12079 nla_put_failure:
12080 genlmsg_cancel(msg, hdr);
12081 nlmsg_free(msg);
12082}
947add36 12083EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12084
5b97f49d
JB		 12085static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12086 const char *mac, gfp_t gfp)
d6dc1a38 12087{
947add36 12088 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12089 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12090 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12091 void **cb;
947add36 12092
d6dc1a38 12093 if (!msg)
5b97f49d 12094 return NULL;
d6dc1a38 12095
5b97f49d
JB		 12096 cb = (void **)msg->cb;
12097
12098 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12099 if (!cb[0]) {
d6dc1a38 12100 nlmsg_free(msg);
5b97f49d 12101 return NULL;
d6dc1a38
JO		 12102 }
12103
9360ffd1 12104 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12105 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12106 goto nla_put_failure;
d6dc1a38 12107
5b97f49d 12108 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12109 goto nla_put_failure;
12110
5b97f49d
JB		 12111 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12112 if (!cb[1])
9360ffd1 12113 goto nla_put_failure;
d6dc1a38 12114
5b97f49d 12115 cb[2] = rdev;
d6dc1a38 12116
5b97f49d
JB		 12117 return msg;
12118 nla_put_failure:
12119 nlmsg_free(msg);
12120 return NULL;
12121}
12122
12123static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12124{
12125 void **cb = (void **)msg->cb;
12126 struct cfg80211_registered_device *rdev = cb[2];
12127
12128 nla_nest_end(msg, cb[1]);
12129 genlmsg_end(msg, cb[0]);
12130
12131 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12132
68eb5503 12133 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12134 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12135}
12136
12137void cfg80211_cqm_rssi_notify(struct net_device *dev,
12138 enum nl80211_cqm_rssi_threshold_event rssi_event,
12139 gfp_t gfp)
12140{
12141 struct sk_buff *msg;
12142
12143 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12144
98f03342
JB		 12145 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12146 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12147 return;
12148
5b97f49d
JB		 12149 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12150 if (!msg)
12151 return;
12152
12153 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12154 rssi_event))
12155 goto nla_put_failure;
12156
12157 cfg80211_send_cqm(msg, gfp);
12158
d6dc1a38
JO		 12159 return;
12160
12161 nla_put_failure:
d6dc1a38
JO		 12162 nlmsg_free(msg);
12163}
947add36 12164EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12165
5b97f49d
JB		 12166void cfg80211_cqm_txe_notify(struct net_device *dev,
12167 const u8 *peer, u32 num_packets,
12168 u32 rate, u32 intvl, gfp_t gfp)
12169{
12170 struct sk_buff *msg;
12171
12172 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12173 if (!msg)
12174 return;
12175
12176 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12177 goto nla_put_failure;
12178
12179 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12180 goto nla_put_failure;
12181
12182 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12183 goto nla_put_failure;
12184
12185 cfg80211_send_cqm(msg, gfp);
12186 return;
12187
12188 nla_put_failure:
12189 nlmsg_free(msg);
12190}
12191EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12192
12193void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12194 const u8 *peer, u32 num_packets, gfp_t gfp)
12195{
12196 struct sk_buff *msg;
12197
12198 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12199
12200 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12201 if (!msg)
12202 return;
12203
12204 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12205 goto nla_put_failure;
12206
12207 cfg80211_send_cqm(msg, gfp);
12208 return;
12209
12210 nla_put_failure:
12211 nlmsg_free(msg);
12212}
12213EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12214
98f03342
JB		 12215void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12216{
12217 struct sk_buff *msg;
12218
12219 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12220 if (!msg)
12221 return;
12222
12223 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12224 goto nla_put_failure;
12225
12226 cfg80211_send_cqm(msg, gfp);
12227 return;
12228
12229 nla_put_failure:
12230 nlmsg_free(msg);
12231}
12232EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12233
947add36
JB		 12234static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12235 struct net_device *netdev, const u8 *bssid,
12236 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12237{
12238 struct sk_buff *msg;
12239 struct nlattr *rekey_attr;
12240 void *hdr;
12241
58050fce 12242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12243 if (!msg)
12244 return;
12245
12246 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12247 if (!hdr) {
12248 nlmsg_free(msg);
12249 return;
12250 }
12251
9360ffd1
DM		 12252 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12253 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12254 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12255 goto nla_put_failure;
e5497d76
JB		 12256
12257 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12258 if (!rekey_attr)
12259 goto nla_put_failure;
12260
9360ffd1
DM		 12261 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12262 NL80211_REPLAY_CTR_LEN, replay_ctr))
12263 goto nla_put_failure;
e5497d76
JB		 12264
12265 nla_nest_end(msg, rekey_attr);
12266
3b7b72ee 12267 genlmsg_end(msg, hdr);
e5497d76 12268
68eb5503 12269 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12270 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12271 return;
12272
12273 nla_put_failure:
12274 genlmsg_cancel(msg, hdr);
12275 nlmsg_free(msg);
12276}
12277
947add36
JB		 12278void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12279 const u8 *replay_ctr, gfp_t gfp)
12280{
12281 struct wireless_dev *wdev = dev->ieee80211_ptr;
12282 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12283 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12284
12285 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12286 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12287}
12288EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12289
12290static void
12291nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12292 struct net_device *netdev, int index,
12293 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12294{
12295 struct sk_buff *msg;
12296 struct nlattr *attr;
12297 void *hdr;
12298
58050fce 12299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12300 if (!msg)
12301 return;
12302
12303 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12304 if (!hdr) {
12305 nlmsg_free(msg);
12306 return;
12307 }
12308
9360ffd1
DM		 12309 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12310 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12311 goto nla_put_failure;
c9df56b4
JM		 12312
12313 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12314 if (!attr)
12315 goto nla_put_failure;
12316
9360ffd1
DM		 12317 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12318 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12319 (preauth &&
12320 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12321 goto nla_put_failure;
c9df56b4
JM		 12322
12323 nla_nest_end(msg, attr);
12324
3b7b72ee 12325 genlmsg_end(msg, hdr);
c9df56b4 12326
68eb5503 12327 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12328 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12329 return;
12330
12331 nla_put_failure:
12332 genlmsg_cancel(msg, hdr);
12333 nlmsg_free(msg);
12334}
12335
947add36
JB		 12336void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12337 const u8 *bssid, bool preauth, gfp_t gfp)
12338{
12339 struct wireless_dev *wdev = dev->ieee80211_ptr;
12340 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12341 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12342
12343 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12344 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12345}
12346EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12347
12348static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12349 struct net_device *netdev,
12350 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12351 gfp_t gfp,
12352 enum nl80211_commands notif,
12353 u8 count)
5314526b
TP		 12354{
12355 struct sk_buff *msg;
12356 void *hdr;
12357
58050fce 12358 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12359 if (!msg)
12360 return;
12361
f8d7552e 12362 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12363 if (!hdr) {
12364 nlmsg_free(msg);
12365 return;
12366 }
12367
683b6d3b
JB		 12368 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12369 goto nla_put_failure;
12370
12371 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12372 goto nla_put_failure;
5314526b 12373
f8d7552e
LC		 12374 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12375 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12376 goto nla_put_failure;
12377
5314526b
TP		 12378 genlmsg_end(msg, hdr);
12379
68eb5503 12380 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12381 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12382 return;
12383
12384 nla_put_failure:
12385 genlmsg_cancel(msg, hdr);
12386 nlmsg_free(msg);
12387}
12388
947add36
JB		 12389void cfg80211_ch_switch_notify(struct net_device *dev,
12390 struct cfg80211_chan_def *chandef)
84f10708 12391{
947add36
JB		 12392 struct wireless_dev *wdev = dev->ieee80211_ptr;
12393 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12394 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12395
e487eaeb 12396 ASSERT_WDEV_LOCK(wdev);
947add36 12397
e487eaeb 12398 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12399
9e0e2961 12400 wdev->chandef = *chandef;
96f55f12 12401 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12402 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12403 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12404}
12405EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12406
f8d7552e
LC		 12407void cfg80211_ch_switch_started_notify(struct net_device *dev,
12408 struct cfg80211_chan_def *chandef,
12409 u8 count)
12410{
12411 struct wireless_dev *wdev = dev->ieee80211_ptr;
12412 struct wiphy *wiphy = wdev->wiphy;
12413 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12414
12415 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12416
12417 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12418 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12419}
12420EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12421
04f39047
SW		 12422void
12423nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12424 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12425 enum nl80211_radar_event event,
12426 struct net_device *netdev, gfp_t gfp)
12427{
12428 struct sk_buff *msg;
12429 void *hdr;
12430
12431 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12432 if (!msg)
12433 return;
12434
12435 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12436 if (!hdr) {
12437 nlmsg_free(msg);
12438 return;
12439 }
12440
12441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12442 goto nla_put_failure;
12443
12444 /* NOP and radar events don't need a netdev parameter */
12445 if (netdev) {
12446 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12447
12448 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12449 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12450 goto nla_put_failure;
12451 }
12452
12453 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12454 goto nla_put_failure;
12455
12456 if (nl80211_send_chandef(msg, chandef))
12457 goto nla_put_failure;
12458
9c90a9f6 12459 genlmsg_end(msg, hdr);
04f39047 12460
68eb5503 12461 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12462 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12463 return;
12464
12465 nla_put_failure:
12466 genlmsg_cancel(msg, hdr);
12467 nlmsg_free(msg);
12468}
12469
7f6cf311
JB		 12470void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12471 u64 cookie, bool acked, gfp_t gfp)
12472{
12473 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12474 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12475 struct sk_buff *msg;
12476 void *hdr;
7f6cf311 12477
4ee3e063
BL		 12478 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12479
58050fce 12480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12481
7f6cf311
JB		 12482 if (!msg)
12483 return;
12484
12485 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12486 if (!hdr) {
12487 nlmsg_free(msg);
12488 return;
12489 }
12490
9360ffd1
DM		 12491 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12492 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12493 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12494 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12495 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12496 goto nla_put_failure;
7f6cf311 12497
9c90a9f6 12498 genlmsg_end(msg, hdr);
7f6cf311 12499
68eb5503 12500 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12501 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12502 return;
12503
12504 nla_put_failure:
12505 genlmsg_cancel(msg, hdr);
12506 nlmsg_free(msg);
12507}
12508EXPORT_SYMBOL(cfg80211_probe_status);
12509
5e760230
JB		 12510void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12511 const u8 *frame, size_t len,
37c73b5f 12512 int freq, int sig_dbm)
5e760230 12513{
f26cbf40 12514 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12515 struct sk_buff *msg;
12516 void *hdr;
37c73b5f 12517 struct cfg80211_beacon_registration *reg;
5e760230 12518
4ee3e063
BL		 12519 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12520
37c73b5f
BG		 12521 spin_lock_bh(&rdev->beacon_registrations_lock);
12522 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12523 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12524 if (!msg) {
12525 spin_unlock_bh(&rdev->beacon_registrations_lock);
12526 return;
12527 }
5e760230 12528
37c73b5f
BG		 12529 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12530 if (!hdr)
12531 goto nla_put_failure;
5e760230 12532
37c73b5f
BG		 12533 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12534 (freq &&
12535 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12536 (sig_dbm &&
12537 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12538 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12539 goto nla_put_failure;
5e760230 12540
37c73b5f 12541 genlmsg_end(msg, hdr);
5e760230 12542
37c73b5f
BG		 12543 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12544 }
12545 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12546 return;
12547
12548 nla_put_failure:
37c73b5f
BG		 12549 spin_unlock_bh(&rdev->beacon_registrations_lock);
12550 if (hdr)
12551 genlmsg_cancel(msg, hdr);
5e760230
JB		 12552 nlmsg_free(msg);
12553}
12554EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12555
cd8f7cb4 12556#ifdef CONFIG_PM
8cd4d456
LC		 12557static int cfg80211_net_detect_results(struct sk_buff *msg,
12558 struct cfg80211_wowlan_wakeup *wakeup)
12559{
12560 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12561 struct nlattr *nl_results, *nl_match, *nl_freqs;
12562 int i, j;
12563
12564 nl_results = nla_nest_start(
12565 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12566 if (!nl_results)
12567 return -EMSGSIZE;
12568
12569 for (i = 0; i < nd->n_matches; i++) {
12570 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12571
12572 nl_match = nla_nest_start(msg, i);
12573 if (!nl_match)
12574 break;
12575
12576 /* The SSID attribute is optional in nl80211, but for
12577 * simplicity reasons it's always present in the
12578 * cfg80211 structure. If a driver can't pass the
12579 * SSID, that needs to be changed. A zero length SSID
12580 * is still a valid SSID (wildcard), so it cannot be
12581 * used for this purpose.
12582 */
12583 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12584 match->ssid.ssid)) {
12585 nla_nest_cancel(msg, nl_match);
12586 goto out;
12587 }
12588
12589 if (match->n_channels) {
12590 nl_freqs = nla_nest_start(
12591 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12592 if (!nl_freqs) {
12593 nla_nest_cancel(msg, nl_match);
12594 goto out;
12595 }
12596
12597 for (j = 0; j < match->n_channels; j++) {
5528fae8 12598 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 12599 nla_nest_cancel(msg, nl_freqs);
12600 nla_nest_cancel(msg, nl_match);
12601 goto out;
12602 }
12603 }
12604
12605 nla_nest_end(msg, nl_freqs);
12606 }
12607
12608 nla_nest_end(msg, nl_match);
12609 }
12610
12611out:
12612 nla_nest_end(msg, nl_results);
12613 return 0;
12614}
12615
cd8f7cb4
JB		 12616void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12617 struct cfg80211_wowlan_wakeup *wakeup,
12618 gfp_t gfp)
12619{
f26cbf40 12620 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12621 struct sk_buff *msg;
12622 void *hdr;
9c90a9f6 12623 int size = 200;
cd8f7cb4
JB		 12624
12625 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12626
12627 if (wakeup)
12628 size += wakeup->packet_present_len;
12629
12630 msg = nlmsg_new(size, gfp);
12631 if (!msg)
12632 return;
12633
12634 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12635 if (!hdr)
12636 goto free_msg;
12637
12638 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12639 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12640 goto free_msg;
12641
12642 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12643 wdev->netdev->ifindex))
12644 goto free_msg;
12645
12646 if (wakeup) {
12647 struct nlattr *reasons;
12648
12649 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12650 if (!reasons)
12651 goto free_msg;
cd8f7cb4
JB		 12652
12653 if (wakeup->disconnect &&
12654 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12655 goto free_msg;
12656 if (wakeup->magic_pkt &&
12657 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12658 goto free_msg;
12659 if (wakeup->gtk_rekey_failure &&
12660 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12661 goto free_msg;
12662 if (wakeup->eap_identity_req &&
12663 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12664 goto free_msg;
12665 if (wakeup->four_way_handshake &&
12666 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12667 goto free_msg;
12668 if (wakeup->rfkill_release &&
12669 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12670 goto free_msg;
12671
12672 if (wakeup->pattern_idx >= 0 &&
12673 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12674 wakeup->pattern_idx))
12675 goto free_msg;
12676
ae917c9f
JB		 12677 if (wakeup->tcp_match &&
12678 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12679 goto free_msg;
2a0e047e 12680
ae917c9f
JB		 12681 if (wakeup->tcp_connlost &&
12682 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12683 goto free_msg;
2a0e047e 12684
ae917c9f
JB		 12685 if (wakeup->tcp_nomoretokens &&
12686 nla_put_flag(msg,
12687 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12688 goto free_msg;
2a0e047e 12689
cd8f7cb4
JB		 12690 if (wakeup->packet) {
12691 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12692 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12693
12694 if (!wakeup->packet_80211) {
12695 pkt_attr =
12696 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12697 len_attr =
12698 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12699 }
12700
12701 if (wakeup->packet_len &&
12702 nla_put_u32(msg, len_attr, wakeup->packet_len))
12703 goto free_msg;
12704
12705 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12706 wakeup->packet))
12707 goto free_msg;
12708 }
12709
8cd4d456
LC		 12710 if (wakeup->net_detect &&
12711 cfg80211_net_detect_results(msg, wakeup))
12712 goto free_msg;
12713
cd8f7cb4
JB		 12714 nla_nest_end(msg, reasons);
12715 }
12716
9c90a9f6 12717 genlmsg_end(msg, hdr);
cd8f7cb4 12718
68eb5503 12719 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12720 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12721 return;
12722
12723 free_msg:
12724 nlmsg_free(msg);
12725}
12726EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12727#endif
12728
3475b094
JM		 12729void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12730 enum nl80211_tdls_operation oper,
12731 u16 reason_code, gfp_t gfp)
12732{
12733 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12734 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12735 struct sk_buff *msg;
12736 void *hdr;
3475b094
JM		 12737
12738 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12739 reason_code);
12740
12741 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12742 if (!msg)
12743 return;
12744
12745 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12746 if (!hdr) {
12747 nlmsg_free(msg);
12748 return;
12749 }
12750
12751 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12752 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12753 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12754 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12755 (reason_code > 0 &&
12756 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12757 goto nla_put_failure;
12758
9c90a9f6 12759 genlmsg_end(msg, hdr);
3475b094 12760
68eb5503 12761 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12762 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12763 return;
12764
12765 nla_put_failure:
12766 genlmsg_cancel(msg, hdr);
12767 nlmsg_free(msg);
12768}
12769EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12770
026331c4
JM		 12771static int nl80211_netlink_notify(struct notifier_block * nb,
12772 unsigned long state,
12773 void *_notify)
12774{
12775 struct netlink_notify *notify = _notify;
12776 struct cfg80211_registered_device *rdev;
12777 struct wireless_dev *wdev;
37c73b5f 12778 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12779
12780 if (state != NETLINK_URELEASE)
12781 return NOTIFY_DONE;
12782
12783 rcu_read_lock();
12784
5e760230 12785 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12786 bool schedule_destroy_work = false;
93a1e86c
JR		 12787 bool schedule_scan_stop = false;
12788 struct cfg80211_sched_scan_request *sched_scan_req =
12789 rcu_dereference(rdev->sched_scan_req);
12790
12791 if (sched_scan_req && notify->portid &&
12792 sched_scan_req->owner_nlportid == notify->portid)
12793 schedule_scan_stop = true;
78f22b6a
JB		 12794
12795 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12796 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12797
78f22b6a
JB		 12798 if (wdev->owner_nlportid == notify->portid)
12799 schedule_destroy_work = true;
12800 }
12801
37c73b5f
BG		 12802 spin_lock_bh(&rdev->beacon_registrations_lock);
12803 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12804 list) {
12805 if (reg->nlportid == notify->portid) {
12806 list_del(&reg->list);
12807 kfree(reg);
12808 break;
12809 }
12810 }
12811 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12812
12813 if (schedule_destroy_work) {
12814 struct cfg80211_iface_destroy *destroy;
12815
12816 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12817 if (destroy) {
12818 destroy->nlportid = notify->portid;
12819 spin_lock(&rdev->destroy_list_lock);
12820 list_add(&destroy->list, &rdev->destroy_list);
12821 spin_unlock(&rdev->destroy_list_lock);
12822 schedule_work(&rdev->destroy_work);
12823 }
93a1e86c
JR		 12824 } else if (schedule_scan_stop) {
12825 sched_scan_req->owner_nlportid = 0;
12826
12827 if (rdev->ops->sched_scan_stop &&
12828 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12829 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 12830 }
5e760230 12831 }
026331c4
JM		 12832
12833 rcu_read_unlock();
12834
05050753
I		 12835 /*
12836 * It is possible that the user space process that is controlling the
12837 * indoor setting disappeared, so notify the regulatory core.
12838 */
12839 regulatory_netlink_notify(notify->portid);
6784c7db 12840 return NOTIFY_OK;
026331c4
JM		 12841}
12842
12843static struct notifier_block nl80211_netlink_notifier = {
12844 .notifier_call = nl80211_netlink_notify,
12845};
12846
355199e0
JM		 12847void cfg80211_ft_event(struct net_device *netdev,
12848 struct cfg80211_ft_event_params *ft_event)
12849{
12850 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12851 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12852 struct sk_buff *msg;
12853 void *hdr;
355199e0
JM		 12854
12855 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12856
12857 if (!ft_event->target_ap)
12858 return;
12859
12860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12861 if (!msg)
12862 return;
12863
12864 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12865 if (!hdr)
12866 goto out;
355199e0 12867
ae917c9f
JB		 12868 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12869 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12870 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12871 goto out;
355199e0 12872
ae917c9f
JB		 12873 if (ft_event->ies &&
12874 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12875 goto out;
12876 if (ft_event->ric_ies &&
12877 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12878 ft_event->ric_ies))
12879 goto out;
355199e0 12880
9c90a9f6 12881 genlmsg_end(msg, hdr);
355199e0 12882
68eb5503 12883 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12884 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12885 return;
12886 out:
12887 nlmsg_free(msg);
355199e0
JM		 12888}
12889EXPORT_SYMBOL(cfg80211_ft_event);
12890
5de17984
AS		 12891void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12892{
12893 struct cfg80211_registered_device *rdev;
12894 struct sk_buff *msg;
12895 void *hdr;
12896 u32 nlportid;
12897
f26cbf40 12898 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12899 if (!rdev->crit_proto_nlportid)
12900 return;
12901
12902 nlportid = rdev->crit_proto_nlportid;
12903 rdev->crit_proto_nlportid = 0;
12904
12905 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12906 if (!msg)
12907 return;
12908
12909 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12910 if (!hdr)
12911 goto nla_put_failure;
12912
12913 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12914 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12915 goto nla_put_failure;
12916
12917 genlmsg_end(msg, hdr);
12918
12919 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12920 return;
12921
12922 nla_put_failure:
12923 if (hdr)
12924 genlmsg_cancel(msg, hdr);
12925 nlmsg_free(msg);
12926
12927}
12928EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12929
348baf0e
JB		 12930void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12931{
12932 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12933 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12934 struct sk_buff *msg;
12935 void *hdr;
12936
12937 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12938 if (!msg)
12939 return;
12940
12941 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12942 if (!hdr)
12943 goto out;
12944
12945 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12946 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12947 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12948 goto out;
12949
12950 genlmsg_end(msg, hdr);
12951
12952 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12953 NL80211_MCGRP_MLME, GFP_KERNEL);
12954 return;
12955 out:
12956 nlmsg_free(msg);
12957}
12958
55682965
JB		 12959/* initialisation/exit functions */
12960
12961int nl80211_init(void)
12962{
0d63cbb5 12963 int err;
55682965 12964
2a94fe48
JB		 12965 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12966 nl80211_mcgrps);
55682965
JB		 12967 if (err)
12968 return err;
12969
026331c4
JM		 12970 err = netlink_register_notifier(&nl80211_netlink_notifier);
12971 if (err)
12972 goto err_out;
12973
55682965
JB		 12974 return 0;
12975 err_out:
12976 genl_unregister_family(&nl80211_fam);
12977 return err;
12978}
12979
12980void nl80211_exit(void)
12981{
026331c4 12982 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12983 genl_unregister_family(&nl80211_fam);
12984}
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