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mac80211: remove redundant check
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
55682965
JB		 6 */
7
8#include <linux/if.h>
9#include <linux/module.h>
10#include <linux/err.h>
5a0e3ad6 11#include <linux/slab.h>
55682965
JB		 12#include <linux/list.h>
13#include <linux/if_ether.h>
14#include <linux/ieee80211.h>
15#include <linux/nl80211.h>
16#include <linux/rtnetlink.h>
17#include <linux/netlink.h>
2a519311 18#include <linux/etherdevice.h>
463d0183 19#include <net/net_namespace.h>
55682965
JB		 20#include <net/genetlink.h>
21#include <net/cfg80211.h>
463d0183 22#include <net/sock.h>
2a0e047e 23#include <net/inet_connection_sock.h>
55682965
JB		 24#include "core.h"
25#include "nl80211.h"
b2e1b302 26#include "reg.h"
e35e4d28 27#include "rdev-ops.h"
55682965 28
5fb628e9
JM		 29static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
32 int cipher_limit);
33
f84f771d 34static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 35 struct genl_info *info);
f84f771d 36static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 37 struct genl_info *info);
38
55682965
JB		 39/* the netlink family */
40static struct genl_family nl80211_fam = {
fb4e1568
MH		 41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
55682965 45 .maxattr = NL80211_ATTR_MAX,
463d0183 46 .netnsok = true,
4c476991
JB		 47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
55682965
JB		 49};
50
2a94fe48
JB		 51/* multicast groups */
52enum nl80211_multicast_groups {
53 NL80211_MCGRP_CONFIG,
54 NL80211_MCGRP_SCAN,
55 NL80211_MCGRP_REGULATORY,
56 NL80211_MCGRP_MLME,
567ffc35 57 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
59};
60
61static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 67#ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
69#endif
70};
71
89a54e48
JB		 72/* returns ERR_PTR values */
73static struct wireless_dev *
74__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 75{
89a54e48
JB		 76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
80 u64 wdev_id;
81 int wiphy_idx = -1;
82 int ifidx = -1;
55682965 83
5fe231e8 84 ASSERT_RTNL();
55682965 85
89a54e48
JB		 86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
55682965 88
89a54e48
JB		 89 if (have_ifidx)
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 if (have_wdev_id) {
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
55682965
JB		 94 }
95
89a54e48
JB		 96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
98
99 if (wiphy_net(&rdev->wiphy) != netns)
100 continue;
101
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
103 continue;
104
89a54e48
JB		 105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
108 result = wdev;
109 break;
110 }
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 result = wdev;
113 break;
114 }
115 }
89a54e48
JB		 116
117 if (result)
118 break;
119 }
120
121 if (result)
122 return result;
123 return ERR_PTR(-ENODEV);
55682965
JB		 124}
125
a9455408 126static struct cfg80211_registered_device *
878d9ec7 127__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 128{
7fee4778
JB		 129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
a9455408 131
5fe231e8 132 ASSERT_RTNL();
a9455408 133
878d9ec7 134 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 137 return ERR_PTR(-EINVAL);
138
878d9ec7 139 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 140 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 142
89a54e48
JB		 143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
146 bool found = false;
147
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 if (tmp) {
150 /* make sure wdev exists */
89a54e48
JB		 151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
153 continue;
154 found = true;
155 break;
156 }
89a54e48
JB		 157
158 if (!found)
159 tmp = NULL;
160
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
163 rdev = tmp;
164 }
165 }
166
878d9ec7
JB		 167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 169 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 170 if (netdev) {
171 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 172 tmp = wiphy_to_rdev(
173 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 174 else
175 tmp = NULL;
176
7fee4778
JB		 177 /* not wireless device -- return error */
178 if (!tmp)
179 return ERR_PTR(-EINVAL);
180
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
184
185 rdev = tmp;
a9455408 186 }
a9455408 187 }
a9455408 188
4f7eff10
JB		 189 if (!rdev)
190 return ERR_PTR(-ENODEV);
a9455408 191
4f7eff10
JB		 192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
194
195 return rdev;
a9455408
JB		 196}
197
198/*
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
a9455408
JB		 201 *
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
204 */
205static struct cfg80211_registered_device *
4f7eff10 206cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 207{
5fe231e8 208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209}
210
55682965 211/* policy for the attributes */
8cd4d456 212static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 391 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
55682965
JB		 398};
399
e31b8213 400/* policy for the key attributes */
b54452b0 401static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 402 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 403 [NL80211_KEY_IDX] = { .type = NLA_U8 },
404 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 405 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 406 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 408 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 409 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
410};
411
412/* policy for the key default flags */
413static const struct nla_policy
414nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
415 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
416 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 417};
418
ff1b6e69
JB		 419/* policy for WoWLAN attributes */
420static const struct nla_policy
421nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
422 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
423 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 426 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 430 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 431 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 432};
433
434static const struct nla_policy
435nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
436 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
437 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
438 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
439 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
440 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
441 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
442 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
443 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
444 },
445 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
446 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
447 },
448 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
449 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
450 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 451};
452
be29b99a
AK		 453/* policy for coalesce rule attributes */
454static const struct nla_policy
455nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
456 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
457 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
458 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
459};
460
e5497d76
JB		 461/* policy for GTK rekey offload attributes */
462static const struct nla_policy
463nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
464 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
465 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
466 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
467};
468
a1f1c21c
LC		 469static const struct nla_policy
470nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 471 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 472 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 473 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 474};
475
97990a06
JB		 476static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
477 struct netlink_callback *cb,
478 struct cfg80211_registered_device **rdev,
479 struct wireless_dev **wdev)
a043897a 480{
97990a06 481 int err;
a043897a 482
97990a06 483 rtnl_lock();
a043897a 484
97990a06
JB		 485 if (!cb->args[0]) {
486 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
487 nl80211_fam.attrbuf, nl80211_fam.maxattr,
488 nl80211_policy);
489 if (err)
490 goto out_unlock;
67748893 491
97990a06
JB		 492 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
493 nl80211_fam.attrbuf);
494 if (IS_ERR(*wdev)) {
495 err = PTR_ERR(*wdev);
496 goto out_unlock;
497 }
f26cbf40 498 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 499 /* 0 is the first index - add 1 to parse only once */
500 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 501 cb->args[1] = (*wdev)->identifier;
502 } else {
c319d50b
JB		 503 /* subtract the 1 again here */
504 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 505 struct wireless_dev *tmp;
67748893 506
97990a06
JB		 507 if (!wiphy) {
508 err = -ENODEV;
509 goto out_unlock;
510 }
f26cbf40 511 *rdev = wiphy_to_rdev(wiphy);
97990a06 512 *wdev = NULL;
67748893 513
97990a06
JB		 514 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
515 if (tmp->identifier == cb->args[1]) {
516 *wdev = tmp;
517 break;
518 }
519 }
67748893 520
97990a06
JB		 521 if (!*wdev) {
522 err = -ENODEV;
523 goto out_unlock;
524 }
67748893
JB		 525 }
526
67748893 527 return 0;
97990a06 528 out_unlock:
67748893
JB		 529 rtnl_unlock();
530 return err;
531}
532
97990a06 533static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 534{
67748893
JB		 535 rtnl_unlock();
536}
537
f4a11bb0
JB		 538/* IE validation */
539static bool is_valid_ie_attr(const struct nlattr *attr)
540{
541 const u8 *pos;
542 int len;
543
544 if (!attr)
545 return true;
546
547 pos = nla_data(attr);
548 len = nla_len(attr);
549
550 while (len) {
551 u8 elemlen;
552
553 if (len < 2)
554 return false;
555 len -= 2;
556
557 elemlen = pos[1];
558 if (elemlen > len)
559 return false;
560
561 len -= elemlen;
562 pos += 2 + elemlen;
563 }
564
565 return true;
566}
567
55682965 568/* message building helper */
15e47304 569static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 570 int flags, u8 cmd)
571{
572 /* since there is no private header just add the generic one */
15e47304 573 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 574}
575
5dab3b8a 576static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 577 struct ieee80211_channel *chan,
578 bool large)
5dab3b8a 579{
ea077c1c
RL		 580 /* Some channels must be completely excluded from the
581 * list to protect old user-space tools from breaking
582 */
583 if (!large && chan->flags &
584 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
585 return 0;
586
9360ffd1
DM		 587 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
588 chan->center_freq))
589 goto nla_put_failure;
5dab3b8a 590
9360ffd1
DM		 591 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
592 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
593 goto nla_put_failure;
8fe02e16
LR		 594 if (chan->flags & IEEE80211_CHAN_NO_IR) {
595 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
596 goto nla_put_failure;
597 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
598 goto nla_put_failure;
599 }
cdc89b97
JB		 600 if (chan->flags & IEEE80211_CHAN_RADAR) {
601 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
602 goto nla_put_failure;
603 if (large) {
604 u32 time;
605
606 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
607
608 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
609 chan->dfs_state))
610 goto nla_put_failure;
611 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
612 time))
613 goto nla_put_failure;
089027e5
JD		 614 if (nla_put_u32(msg,
615 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
616 chan->dfs_cac_ms))
617 goto nla_put_failure;
cdc89b97
JB		 618 }
619 }
5dab3b8a 620
fe1abafd
JB		 621 if (large) {
622 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
623 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
624 goto nla_put_failure;
625 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
626 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
627 goto nla_put_failure;
628 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
629 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
630 goto nla_put_failure;
631 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
632 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
633 goto nla_put_failure;
570dbde1
DS		 634 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
636 goto nla_put_failure;
637 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
638 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
639 goto nla_put_failure;
ea077c1c
RL		 640 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
641 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
642 goto nla_put_failure;
643 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
644 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
645 goto nla_put_failure;
fe1abafd
JB		 646 }
647
9360ffd1
DM		 648 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
649 DBM_TO_MBM(chan->max_power)))
650 goto nla_put_failure;
5dab3b8a
LR		 651
652 return 0;
653
654 nla_put_failure:
655 return -ENOBUFS;
656}
657
55682965
JB		 658/* netlink command implementations */
659
b9454e83
JB		 660struct key_parse {
661 struct key_params p;
662 int idx;
e31b8213 663 int type;
b9454e83 664 bool def, defmgmt;
dbd2fd65 665 bool def_uni, def_multi;
b9454e83
JB		 666};
667
668static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
669{
670 struct nlattr *tb[NL80211_KEY_MAX + 1];
671 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
672 nl80211_key_policy);
673 if (err)
674 return err;
675
676 k->def = !!tb[NL80211_KEY_DEFAULT];
677 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
678
dbd2fd65
JB		 679 if (k->def) {
680 k->def_uni = true;
681 k->def_multi = true;
682 }
683 if (k->defmgmt)
684 k->def_multi = true;
685
b9454e83
JB		 686 if (tb[NL80211_KEY_IDX])
687 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
688
689 if (tb[NL80211_KEY_DATA]) {
690 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
691 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
692 }
693
694 if (tb[NL80211_KEY_SEQ]) {
695 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
696 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
697 }
698
699 if (tb[NL80211_KEY_CIPHER])
700 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
701
e31b8213
JB		 702 if (tb[NL80211_KEY_TYPE]) {
703 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
704 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
705 return -EINVAL;
706 }
707
dbd2fd65
JB		 708 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
709 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 710 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
711 tb[NL80211_KEY_DEFAULT_TYPES],
712 nl80211_key_default_policy);
dbd2fd65
JB		 713 if (err)
714 return err;
715
716 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
717 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
718 }
719
b9454e83
JB		 720 return 0;
721}
722
723static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
724{
725 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
726 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
727 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
728 }
729
730 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
731 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
732 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
733 }
734
735 if (info->attrs[NL80211_ATTR_KEY_IDX])
736 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
737
738 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
739 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
740
741 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
742 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
743
dbd2fd65
JB		 744 if (k->def) {
745 k->def_uni = true;
746 k->def_multi = true;
747 }
748 if (k->defmgmt)
749 k->def_multi = true;
750
e31b8213
JB		 751 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
752 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
753 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
754 return -EINVAL;
755 }
756
dbd2fd65
JB		 757 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
758 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
759 int err = nla_parse_nested(
760 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
761 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
762 nl80211_key_default_policy);
763 if (err)
764 return err;
765
766 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
767 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
768 }
769
b9454e83
JB		 770 return 0;
771}
772
773static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
774{
775 int err;
776
777 memset(k, 0, sizeof(*k));
778 k->idx = -1;
e31b8213 779 k->type = -1;
b9454e83
JB		 780
781 if (info->attrs[NL80211_ATTR_KEY])
782 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
783 else
784 err = nl80211_parse_key_old(info, k);
785
786 if (err)
787 return err;
788
789 if (k->def && k->defmgmt)
790 return -EINVAL;
791
dbd2fd65
JB		 792 if (k->defmgmt) {
793 if (k->def_uni || !k->def_multi)
794 return -EINVAL;
795 }
796
b9454e83
JB		 797 if (k->idx != -1) {
798 if (k->defmgmt) {
799 if (k->idx < 4 || k->idx > 5)
800 return -EINVAL;
801 } else if (k->def) {
802 if (k->idx < 0 || k->idx > 3)
803 return -EINVAL;
804 } else {
805 if (k->idx < 0 || k->idx > 5)
806 return -EINVAL;
807 }
808 }
809
810 return 0;
811}
812
fffd0934
JB		 813static struct cfg80211_cached_keys *
814nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 815 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 816{
817 struct key_parse parse;
818 struct nlattr *key;
819 struct cfg80211_cached_keys *result;
820 int rem, err, def = 0;
821
822 result = kzalloc(sizeof(*result), GFP_KERNEL);
823 if (!result)
824 return ERR_PTR(-ENOMEM);
825
826 result->def = -1;
827 result->defmgmt = -1;
828
829 nla_for_each_nested(key, keys, rem) {
830 memset(&parse, 0, sizeof(parse));
831 parse.idx = -1;
832
833 err = nl80211_parse_key_new(key, &parse);
834 if (err)
835 goto error;
836 err = -EINVAL;
837 if (!parse.p.key)
838 goto error;
839 if (parse.idx < 0 || parse.idx > 4)
840 goto error;
841 if (parse.def) {
842 if (def)
843 goto error;
844 def = 1;
845 result->def = parse.idx;
dbd2fd65
JB		 846 if (!parse.def_uni || !parse.def_multi)
847 goto error;
fffd0934
JB		 848 } else if (parse.defmgmt)
849 goto error;
850 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 851 parse.idx, false, NULL);
fffd0934
JB		 852 if (err)
853 goto error;
854 result->params[parse.idx].cipher = parse.p.cipher;
855 result->params[parse.idx].key_len = parse.p.key_len;
856 result->params[parse.idx].key = result->data[parse.idx];
857 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 858
859 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
860 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
861 if (no_ht)
862 *no_ht = true;
863 }
fffd0934
JB		 864 }
865
866 return result;
867 error:
868 kfree(result);
869 return ERR_PTR(err);
870}
871
872static int nl80211_key_allowed(struct wireless_dev *wdev)
873{
874 ASSERT_WDEV_LOCK(wdev);
875
fffd0934
JB		 876 switch (wdev->iftype) {
877 case NL80211_IFTYPE_AP:
878 case NL80211_IFTYPE_AP_VLAN:
074ac8df 879 case NL80211_IFTYPE_P2P_GO:
ff973af7 880 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 881 break;
882 case NL80211_IFTYPE_ADHOC:
fffd0934 883 case NL80211_IFTYPE_STATION:
074ac8df 884 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 885 if (!wdev->current_bss)
fffd0934
JB		 886 return -ENOLINK;
887 break;
de4fcbad 888 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 889 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 890 case NL80211_IFTYPE_MONITOR:
891 case NL80211_IFTYPE_P2P_DEVICE:
892 case NL80211_IFTYPE_WDS:
893 case NUM_NL80211_IFTYPES:
fffd0934
JB		 894 return -EINVAL;
895 }
896
897 return 0;
898}
899
664834de
JM		 900static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
901 struct nlattr *tb)
902{
903 struct ieee80211_channel *chan;
904
905 if (tb == NULL)
906 return NULL;
907 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
908 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
909 return NULL;
910 return chan;
911}
912
7527a782
JB		 913static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
914{
915 struct nlattr *nl_modes = nla_nest_start(msg, attr);
916 int i;
917
918 if (!nl_modes)
919 goto nla_put_failure;
920
921 i = 0;
922 while (ifmodes) {
9360ffd1
DM		 923 if ((ifmodes & 1) && nla_put_flag(msg, i))
924 goto nla_put_failure;
7527a782
JB		 925 ifmodes >>= 1;
926 i++;
927 }
928
929 nla_nest_end(msg, nl_modes);
930 return 0;
931
932nla_put_failure:
933 return -ENOBUFS;
934}
935
936static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 937 struct sk_buff *msg,
938 bool large)
7527a782
JB		 939{
940 struct nlattr *nl_combis;
941 int i, j;
942
943 nl_combis = nla_nest_start(msg,
944 NL80211_ATTR_INTERFACE_COMBINATIONS);
945 if (!nl_combis)
946 goto nla_put_failure;
947
948 for (i = 0; i < wiphy->n_iface_combinations; i++) {
949 const struct ieee80211_iface_combination *c;
950 struct nlattr *nl_combi, *nl_limits;
951
952 c = &wiphy->iface_combinations[i];
953
954 nl_combi = nla_nest_start(msg, i + 1);
955 if (!nl_combi)
956 goto nla_put_failure;
957
958 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
959 if (!nl_limits)
960 goto nla_put_failure;
961
962 for (j = 0; j < c->n_limits; j++) {
963 struct nlattr *nl_limit;
964
965 nl_limit = nla_nest_start(msg, j + 1);
966 if (!nl_limit)
967 goto nla_put_failure;
9360ffd1
DM		 968 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
969 c->limits[j].max))
970 goto nla_put_failure;
7527a782
JB		 971 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
972 c->limits[j].types))
973 goto nla_put_failure;
974 nla_nest_end(msg, nl_limit);
975 }
976
977 nla_nest_end(msg, nl_limits);
978
9360ffd1
DM		 979 if (c->beacon_int_infra_match &&
980 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
981 goto nla_put_failure;
982 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
983 c->num_different_channels) ||
984 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
985 c->max_interfaces))
986 goto nla_put_failure;
cdc89b97 987 if (large &&
8c48b50a
FF		 988 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
989 c->radar_detect_widths) ||
990 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
991 c->radar_detect_regions)))
cdc89b97 992 goto nla_put_failure;
7527a782
JB		 993
994 nla_nest_end(msg, nl_combi);
995 }
996
997 nla_nest_end(msg, nl_combis);
998
999 return 0;
1000nla_put_failure:
1001 return -ENOBUFS;
1002}
1003
3713b4e3 1004#ifdef CONFIG_PM
b56cf720
JB		 1005static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1006 struct sk_buff *msg)
1007{
964dc9e2 1008 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1009 struct nlattr *nl_tcp;
1010
1011 if (!tcp)
1012 return 0;
1013
1014 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1015 if (!nl_tcp)
1016 return -ENOBUFS;
1017
1018 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1019 tcp->data_payload_max))
1020 return -ENOBUFS;
1021
1022 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1023 tcp->data_payload_max))
1024 return -ENOBUFS;
1025
1026 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1027 return -ENOBUFS;
1028
1029 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1030 sizeof(*tcp->tok), tcp->tok))
1031 return -ENOBUFS;
1032
1033 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1034 tcp->data_interval_max))
1035 return -ENOBUFS;
1036
1037 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1038 tcp->wake_payload_max))
1039 return -ENOBUFS;
1040
1041 nla_nest_end(msg, nl_tcp);
1042 return 0;
1043}
1044
3713b4e3 1045static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1046 struct cfg80211_registered_device *rdev,
b56cf720 1047 bool large)
55682965 1048{
3713b4e3 1049 struct nlattr *nl_wowlan;
55682965 1050
1b8ec87a 1051 if (!rdev->wiphy.wowlan)
3713b4e3 1052 return 0;
55682965 1053
3713b4e3
JB		 1054 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1055 if (!nl_wowlan)
1056 return -ENOBUFS;
9360ffd1 1057
1b8ec87a 1058 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1060 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1062 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1064 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1068 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1070 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1074 return -ENOBUFS;
9360ffd1 1075
1b8ec87a 1076 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1077 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1078 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1079 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1080 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1081 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1082 };
9360ffd1 1083
3713b4e3
JB		 1084 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1085 sizeof(pat), &pat))
1086 return -ENOBUFS;
1087 }
9360ffd1 1088
1b8ec87a 1089 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1090 return -ENOBUFS;
1091
8cd4d456
LC		 1092 /* TODO: send wowlan net detect */
1093
3713b4e3 1094 nla_nest_end(msg, nl_wowlan);
9360ffd1 1095
3713b4e3
JB		 1096 return 0;
1097}
1098#endif
9360ffd1 1099
be29b99a 1100static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1101 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1102{
1103 struct nl80211_coalesce_rule_support rule;
1104
1b8ec87a 1105 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1106 return 0;
1107
1b8ec87a
ZG		 1108 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1109 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1110 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1111 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1112 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1113 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1114
1115 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1116 return -ENOBUFS;
1117
1118 return 0;
1119}
1120
3713b4e3
JB		 1121static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1122 struct ieee80211_supported_band *sband)
1123{
1124 struct nlattr *nl_rates, *nl_rate;
1125 struct ieee80211_rate *rate;
1126 int i;
87bbbe22 1127
3713b4e3
JB		 1128 /* add HT info */
1129 if (sband->ht_cap.ht_supported &&
1130 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1131 sizeof(sband->ht_cap.mcs),
1132 &sband->ht_cap.mcs) ||
1133 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1134 sband->ht_cap.cap) ||
1135 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1136 sband->ht_cap.ampdu_factor) ||
1137 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1138 sband->ht_cap.ampdu_density)))
1139 return -ENOBUFS;
afe0cbf8 1140
3713b4e3
JB		 1141 /* add VHT info */
1142 if (sband->vht_cap.vht_supported &&
1143 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1144 sizeof(sband->vht_cap.vht_mcs),
1145 &sband->vht_cap.vht_mcs) ||
1146 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1147 sband->vht_cap.cap)))
1148 return -ENOBUFS;
f59ac048 1149
3713b4e3
JB		 1150 /* add bitrates */
1151 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1152 if (!nl_rates)
1153 return -ENOBUFS;
ee688b00 1154
3713b4e3
JB		 1155 for (i = 0; i < sband->n_bitrates; i++) {
1156 nl_rate = nla_nest_start(msg, i);
1157 if (!nl_rate)
1158 return -ENOBUFS;
ee688b00 1159
3713b4e3
JB		 1160 rate = &sband->bitrates[i];
1161 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1162 rate->bitrate))
1163 return -ENOBUFS;
1164 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1165 nla_put_flag(msg,
1166 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1167 return -ENOBUFS;
ee688b00 1168
3713b4e3
JB		 1169 nla_nest_end(msg, nl_rate);
1170 }
d51626df 1171
3713b4e3 1172 nla_nest_end(msg, nl_rates);
bf0c111e 1173
3713b4e3
JB		 1174 return 0;
1175}
ee688b00 1176
3713b4e3
JB		 1177static int
1178nl80211_send_mgmt_stypes(struct sk_buff *msg,
1179 const struct ieee80211_txrx_stypes *mgmt_stypes)
1180{
1181 u16 stypes;
1182 struct nlattr *nl_ftypes, *nl_ifs;
1183 enum nl80211_iftype ift;
1184 int i;
ee688b00 1185
3713b4e3
JB		 1186 if (!mgmt_stypes)
1187 return 0;
5dab3b8a 1188
3713b4e3
JB		 1189 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1190 if (!nl_ifs)
1191 return -ENOBUFS;
e2f367f2 1192
3713b4e3
JB		 1193 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1194 nl_ftypes = nla_nest_start(msg, ift);
1195 if (!nl_ftypes)
1196 return -ENOBUFS;
1197 i = 0;
1198 stypes = mgmt_stypes[ift].tx;
1199 while (stypes) {
1200 if ((stypes & 1) &&
1201 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1202 (i << 4) | IEEE80211_FTYPE_MGMT))
1203 return -ENOBUFS;
1204 stypes >>= 1;
1205 i++;
ee688b00 1206 }
3713b4e3
JB		 1207 nla_nest_end(msg, nl_ftypes);
1208 }
ee688b00 1209
3713b4e3 1210 nla_nest_end(msg, nl_ifs);
ee688b00 1211
3713b4e3
JB		 1212 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1213 if (!nl_ifs)
1214 return -ENOBUFS;
ee688b00 1215
3713b4e3
JB		 1216 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1217 nl_ftypes = nla_nest_start(msg, ift);
1218 if (!nl_ftypes)
1219 return -ENOBUFS;
1220 i = 0;
1221 stypes = mgmt_stypes[ift].rx;
1222 while (stypes) {
1223 if ((stypes & 1) &&
1224 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1225 (i << 4) | IEEE80211_FTYPE_MGMT))
1226 return -ENOBUFS;
1227 stypes >>= 1;
1228 i++;
1229 }
1230 nla_nest_end(msg, nl_ftypes);
1231 }
1232 nla_nest_end(msg, nl_ifs);
ee688b00 1233
3713b4e3
JB		 1234 return 0;
1235}
ee688b00 1236
86e8cf98
JB		 1237struct nl80211_dump_wiphy_state {
1238 s64 filter_wiphy;
1239 long start;
1240 long split_start, band_start, chan_start;
1241 bool split;
1242};
1243
1b8ec87a 1244static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1245 enum nl80211_commands cmd,
3713b4e3 1246 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1247 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1248{
1249 void *hdr;
1250 struct nlattr *nl_bands, *nl_band;
1251 struct nlattr *nl_freqs, *nl_freq;
1252 struct nlattr *nl_cmds;
1253 enum ieee80211_band band;
1254 struct ieee80211_channel *chan;
1255 int i;
1256 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1257 rdev->wiphy.mgmt_stypes;
fe1abafd 1258 u32 features;
ee688b00 1259
3bb20556 1260 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1261 if (!hdr)
1262 return -ENOBUFS;
ee688b00 1263
86e8cf98
JB		 1264 if (WARN_ON(!state))
1265 return -EINVAL;
ee688b00 1266
1b8ec87a 1267 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1268 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1269 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1270 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1271 cfg80211_rdev_list_generation))
8fdc621d
JB		 1272 goto nla_put_failure;
1273
3bb20556
JB		 1274 if (cmd != NL80211_CMD_NEW_WIPHY)
1275 goto finish;
1276
86e8cf98 1277 switch (state->split_start) {
3713b4e3
JB		 1278 case 0:
1279 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1280 rdev->wiphy.retry_short) ||
3713b4e3 1281 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1282 rdev->wiphy.retry_long) ||
3713b4e3 1283 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1284 rdev->wiphy.frag_threshold) ||
3713b4e3 1285 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1286 rdev->wiphy.rts_threshold) ||
3713b4e3 1287 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1288 rdev->wiphy.coverage_class) ||
3713b4e3 1289 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1290 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1291 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1292 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1293 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1294 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1295 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1296 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1297 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1298 rdev->wiphy.max_match_sets))
9360ffd1 1299 goto nla_put_failure;
3713b4e3 1300
1b8ec87a 1301 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1302 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1303 goto nla_put_failure;
1b8ec87a 1304 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1305 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1306 goto nla_put_failure;
1b8ec87a 1307 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1308 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1309 goto nla_put_failure;
1b8ec87a 1310 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1311 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1312 goto nla_put_failure;
1b8ec87a 1313 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1314 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1315 goto nla_put_failure;
1b8ec87a 1316 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1317 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1318 goto nla_put_failure;
86e8cf98
JB		 1319 state->split_start++;
1320 if (state->split)
3713b4e3
JB		 1321 break;
1322 case 1:
1323 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1324 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1325 rdev->wiphy.cipher_suites))
3713b4e3 1326 goto nla_put_failure;
4745fc09 1327
3713b4e3 1328 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1329 rdev->wiphy.max_num_pmkids))
3713b4e3 1330 goto nla_put_failure;
b23aa676 1331
1b8ec87a 1332 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1333 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1334 goto nla_put_failure;
b23aa676 1335
3713b4e3 1336 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1337 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1338 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1339 rdev->wiphy.available_antennas_rx))
9360ffd1 1340 goto nla_put_failure;
b23aa676 1341
1b8ec87a 1342 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1343 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1344 rdev->wiphy.probe_resp_offload))
3713b4e3 1345 goto nla_put_failure;
8fdc621d 1346
1b8ec87a
ZG		 1347 if ((rdev->wiphy.available_antennas_tx ||
1348 rdev->wiphy.available_antennas_rx) &&
1349 rdev->ops->get_antenna) {
3713b4e3
JB		 1350 u32 tx_ant = 0, rx_ant = 0;
1351 int res;
1b8ec87a 1352 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1353 if (!res) {
1354 if (nla_put_u32(msg,
1355 NL80211_ATTR_WIPHY_ANTENNA_TX,
1356 tx_ant) ||
1357 nla_put_u32(msg,
1358 NL80211_ATTR_WIPHY_ANTENNA_RX,
1359 rx_ant))
1360 goto nla_put_failure;
1361 }
1362 }
a293911d 1363
86e8cf98
JB		 1364 state->split_start++;
1365 if (state->split)
3713b4e3
JB		 1366 break;
1367 case 2:
1368 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1369 rdev->wiphy.interface_modes))
3713b4e3 1370 goto nla_put_failure;
86e8cf98
JB		 1371 state->split_start++;
1372 if (state->split)
3713b4e3
JB		 1373 break;
1374 case 3:
1375 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1376 if (!nl_bands)
1377 goto nla_put_failure;
f7ca38df 1378
86e8cf98
JB		 1379 for (band = state->band_start;
1380 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1381 struct ieee80211_supported_band *sband;
2e161f78 1382
1b8ec87a 1383 sband = rdev->wiphy.bands[band];
2e161f78 1384
3713b4e3
JB		 1385 if (!sband)
1386 continue;
1387
1388 nl_band = nla_nest_start(msg, band);
1389 if (!nl_band)
2e161f78 1390 goto nla_put_failure;
3713b4e3 1391
86e8cf98 1392 switch (state->chan_start) {
3713b4e3
JB		 1393 case 0:
1394 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1395 goto nla_put_failure;
86e8cf98
JB		 1396 state->chan_start++;
1397 if (state->split)
3713b4e3
JB		 1398 break;
1399 default:
1400 /* add frequencies */
1401 nl_freqs = nla_nest_start(
1402 msg, NL80211_BAND_ATTR_FREQS);
1403 if (!nl_freqs)
1404 goto nla_put_failure;
1405
86e8cf98 1406 for (i = state->chan_start - 1;
3713b4e3
JB		 1407 i < sband->n_channels;
1408 i++) {
1409 nl_freq = nla_nest_start(msg, i);
1410 if (!nl_freq)
1411 goto nla_put_failure;
1412
1413 chan = &sband->channels[i];
1414
86e8cf98
JB		 1415 if (nl80211_msg_put_channel(
1416 msg, chan,
1417 state->split))
3713b4e3
JB		 1418 goto nla_put_failure;
1419
1420 nla_nest_end(msg, nl_freq);
86e8cf98 1421 if (state->split)
3713b4e3
JB		 1422 break;
1423 }
1424 if (i < sband->n_channels)
86e8cf98 1425 state->chan_start = i + 2;
3713b4e3 1426 else
86e8cf98 1427 state->chan_start = 0;
3713b4e3
JB		 1428 nla_nest_end(msg, nl_freqs);
1429 }
1430
1431 nla_nest_end(msg, nl_band);
1432
86e8cf98 1433 if (state->split) {
3713b4e3 1434 /* start again here */
86e8cf98 1435 if (state->chan_start)
3713b4e3
JB		 1436 band--;
1437 break;
2e161f78 1438 }
2e161f78 1439 }
3713b4e3 1440 nla_nest_end(msg, nl_bands);
2e161f78 1441
3713b4e3 1442 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1443 state->band_start = band + 1;
3713b4e3 1444 else
86e8cf98 1445 state->band_start = 0;
74b70a4e 1446
3713b4e3 1447 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1448 if (state->band_start == 0 && state->chan_start == 0)
1449 state->split_start++;
1450 if (state->split)
3713b4e3
JB		 1451 break;
1452 case 4:
1453 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1454 if (!nl_cmds)
2e161f78
JB		 1455 goto nla_put_failure;
1456
3713b4e3
JB		 1457 i = 0;
1458#define CMD(op, n) \
1459 do { \
1b8ec87a 1460 if (rdev->ops->op) { \
3713b4e3
JB		 1461 i++; \
1462 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1463 goto nla_put_failure; \
1464 } \
1465 } while (0)
1466
1467 CMD(add_virtual_intf, NEW_INTERFACE);
1468 CMD(change_virtual_intf, SET_INTERFACE);
1469 CMD(add_key, NEW_KEY);
1470 CMD(start_ap, START_AP);
1471 CMD(add_station, NEW_STATION);
1472 CMD(add_mpath, NEW_MPATH);
1473 CMD(update_mesh_config, SET_MESH_CONFIG);
1474 CMD(change_bss, SET_BSS);
1475 CMD(auth, AUTHENTICATE);
1476 CMD(assoc, ASSOCIATE);
1477 CMD(deauth, DEAUTHENTICATE);
1478 CMD(disassoc, DISASSOCIATE);
1479 CMD(join_ibss, JOIN_IBSS);
1480 CMD(join_mesh, JOIN_MESH);
1481 CMD(set_pmksa, SET_PMKSA);
1482 CMD(del_pmksa, DEL_PMKSA);
1483 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1484 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1485 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1486 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1487 CMD(mgmt_tx, FRAME);
1488 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1489 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1490 i++;
1491 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1492 goto nla_put_failure;
2e161f78 1493 }
1b8ec87a
ZG		 1494 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1495 rdev->ops->join_mesh) {
3713b4e3
JB		 1496 i++;
1497 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1498 goto nla_put_failure;
1499 }
1500 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1501 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1502 CMD(tdls_mgmt, TDLS_MGMT);
1503 CMD(tdls_oper, TDLS_OPER);
1504 }
1b8ec87a 1505 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1506 CMD(sched_scan_start, START_SCHED_SCAN);
1507 CMD(probe_client, PROBE_CLIENT);
1508 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1509 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1510 i++;
1511 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1512 goto nla_put_failure;
1513 }
1514 CMD(start_p2p_device, START_P2P_DEVICE);
1515 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1516#ifdef CONFIG_NL80211_TESTMODE
1517 CMD(testmode_cmd, TESTMODE);
1518#endif
86e8cf98 1519 if (state->split) {
5de17984
AS		 1520 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1521 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1522 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1523 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1524 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1525 if (rdev->wiphy.features &
1526 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1527 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1528 }
02df00eb 1529 /* add into the if now */
3713b4e3 1530#undef CMD
ff1b6e69 1531
1b8ec87a 1532 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1533 i++;
1534 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1535 goto nla_put_failure;
ff1b6e69
JB		 1536 }
1537
1b8ec87a 1538 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1539 i++;
1540 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1541 goto nla_put_failure;
1542 }
1543
1544 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1545 state->split_start++;
1546 if (state->split)
3713b4e3
JB		 1547 break;
1548 case 5:
1b8ec87a
ZG		 1549 if (rdev->ops->remain_on_channel &&
1550 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1551 nla_put_u32(msg,
1552 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1553 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1554 goto nla_put_failure;
1555
1b8ec87a 1556 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1557 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1558 goto nla_put_failure;
1559
1560 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1561 goto nla_put_failure;
86e8cf98
JB		 1562 state->split_start++;
1563 if (state->split)
3713b4e3
JB		 1564 break;
1565 case 6:
1566#ifdef CONFIG_PM
1b8ec87a 1567 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1568 goto nla_put_failure;
86e8cf98
JB		 1569 state->split_start++;
1570 if (state->split)
3713b4e3
JB		 1571 break;
1572#else
86e8cf98 1573 state->split_start++;
dfb89c56 1574#endif
3713b4e3
JB		 1575 case 7:
1576 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1577 rdev->wiphy.software_iftypes))
3713b4e3 1578 goto nla_put_failure;
ff1b6e69 1579
1b8ec87a 1580 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1581 state->split))
3713b4e3 1582 goto nla_put_failure;
7527a782 1583
86e8cf98
JB		 1584 state->split_start++;
1585 if (state->split)
3713b4e3
JB		 1586 break;
1587 case 8:
1b8ec87a 1588 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1589 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1590 rdev->wiphy.ap_sme_capa))
3713b4e3 1591 goto nla_put_failure;
7527a782 1592
1b8ec87a 1593 features = rdev->wiphy.features;
fe1abafd
JB		 1594 /*
1595 * We can only add the per-channel limit information if the
1596 * dump is split, otherwise it makes it too big. Therefore
1597 * only advertise it in that case.
1598 */
86e8cf98 1599 if (state->split)
fe1abafd
JB		 1600 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1601 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1602 goto nla_put_failure;
562a7480 1603
1b8ec87a 1604 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1605 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1606 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1607 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1608 goto nla_put_failure;
1f074bd8 1609
1b8ec87a
ZG		 1610 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1611 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1612 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1613 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1614 goto nla_put_failure;
7e7c8926 1615
3713b4e3
JB		 1616 /*
1617 * Any information below this point is only available to
1618 * applications that can deal with it being split. This
1619 * helps ensure that newly added capabilities don't break
1620 * older tools by overrunning their buffers.
1621 *
1622 * We still increment split_start so that in the split
1623 * case we'll continue with more data in the next round,
1624 * but break unconditionally so unsplit data stops here.
1625 */
86e8cf98 1626 state->split_start++;
3713b4e3
JB		 1627 break;
1628 case 9:
1b8ec87a 1629 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1630 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1631 rdev->wiphy.extended_capabilities_len,
1632 rdev->wiphy.extended_capabilities) ||
fe1abafd 1633 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1634 rdev->wiphy.extended_capabilities_len,
1635 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1636 goto nla_put_failure;
a50df0c4 1637
1b8ec87a 1638 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1639 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1640 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1641 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1642 goto nla_put_failure;
1643
be29b99a
AK		 1644 state->split_start++;
1645 break;
1646 case 10:
1b8ec87a 1647 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1648 goto nla_put_failure;
1649
1b8ec87a 1650 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1651 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1652 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1653 goto nla_put_failure;
b43504cf 1654
1b8ec87a 1655 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1656 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1657 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1658 goto nla_put_failure;
1659
ad7e718c
JB		 1660 state->split_start++;
1661 break;
1662 case 11:
1b8ec87a 1663 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1664 const struct nl80211_vendor_cmd_info *info;
1665 struct nlattr *nested;
1666
1667 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1668 if (!nested)
1669 goto nla_put_failure;
1670
1b8ec87a
ZG		 1671 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1672 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1673 if (nla_put(msg, i + 1, sizeof(*info), info))
1674 goto nla_put_failure;
1675 }
1676 nla_nest_end(msg, nested);
1677 }
1678
1b8ec87a 1679 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1680 const struct nl80211_vendor_cmd_info *info;
1681 struct nlattr *nested;
ad7e718c 1682
567ffc35
JB		 1683 nested = nla_nest_start(msg,
1684 NL80211_ATTR_VENDOR_EVENTS);
1685 if (!nested)
ad7e718c 1686 goto nla_put_failure;
567ffc35 1687
1b8ec87a
ZG		 1688 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1689 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1690 if (nla_put(msg, i + 1, sizeof(*info), info))
1691 goto nla_put_failure;
1692 }
1693 nla_nest_end(msg, nested);
1694 }
9a774c78
AO		 1695 state->split_start++;
1696 break;
1697 case 12:
1698 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1699 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1700 rdev->wiphy.max_num_csa_counters))
1701 goto nla_put_failure;
01e0daa4 1702
3713b4e3 1703 /* done */
86e8cf98 1704 state->split_start = 0;
3713b4e3
JB		 1705 break;
1706 }
3bb20556 1707 finish:
55682965
JB		 1708 return genlmsg_end(msg, hdr);
1709
1710 nla_put_failure:
bc3ed28c
TG		 1711 genlmsg_cancel(msg, hdr);
1712 return -EMSGSIZE;
55682965
JB		 1713}
1714
86e8cf98
JB		 1715static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1716 struct netlink_callback *cb,
1717 struct nl80211_dump_wiphy_state *state)
1718{
1719 struct nlattr **tb = nl80211_fam.attrbuf;
1720 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1721 tb, nl80211_fam.maxattr, nl80211_policy);
1722 /* ignore parse errors for backward compatibility */
1723 if (ret)
1724 return 0;
1725
1726 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1727 if (tb[NL80211_ATTR_WIPHY])
1728 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1729 if (tb[NL80211_ATTR_WDEV])
1730 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1731 if (tb[NL80211_ATTR_IFINDEX]) {
1732 struct net_device *netdev;
1733 struct cfg80211_registered_device *rdev;
1734 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1735
7f2b8562 1736 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1737 if (!netdev)
1738 return -ENODEV;
1739 if (netdev->ieee80211_ptr) {
f26cbf40 1740 rdev = wiphy_to_rdev(
86e8cf98
JB		 1741 netdev->ieee80211_ptr->wiphy);
1742 state->filter_wiphy = rdev->wiphy_idx;
1743 }
86e8cf98
JB		 1744 }
1745
1746 return 0;
1747}
1748
55682965
JB		 1749static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1750{
645e77de 1751 int idx = 0, ret;
86e8cf98 1752 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1753 struct cfg80211_registered_device *rdev;
3a5a423b 1754
5fe231e8 1755 rtnl_lock();
86e8cf98
JB		 1756 if (!state) {
1757 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1758 if (!state) {
1759 rtnl_unlock();
86e8cf98 1760 return -ENOMEM;
3713b4e3 1761 }
86e8cf98
JB		 1762 state->filter_wiphy = -1;
1763 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1764 if (ret) {
1765 kfree(state);
1766 rtnl_unlock();
1767 return ret;
3713b4e3 1768 }
86e8cf98 1769 cb->args[0] = (long)state;
3713b4e3
JB		 1770 }
1771
1b8ec87a
ZG		 1772 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1773 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1774 continue;
86e8cf98 1775 if (++idx <= state->start)
55682965 1776 continue;
86e8cf98 1777 if (state->filter_wiphy != -1 &&
1b8ec87a 1778 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1779 continue;
1780 /* attempt to fit multiple wiphy data chunks into the skb */
1781 do {
3bb20556
JB		 1782 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1783 skb,
3713b4e3
JB		 1784 NETLINK_CB(cb->skb).portid,
1785 cb->nlh->nlmsg_seq,
86e8cf98 1786 NLM_F_MULTI, state);
3713b4e3
JB		 1787 if (ret < 0) {
1788 /*
1789 * If sending the wiphy data didn't fit (ENOBUFS
1790 * or EMSGSIZE returned), this SKB is still
1791 * empty (so it's not too big because another
1792 * wiphy dataset is already in the skb) and
1793 * we've not tried to adjust the dump allocation
1794 * yet ... then adjust the alloc size to be
1795 * bigger, and return 1 but with the empty skb.
1796 * This results in an empty message being RX'ed
1797 * in userspace, but that is ignored.
1798 *
1799 * We can then retry with the larger buffer.
1800 */
1801 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1802 !skb->len && !state->split &&
3713b4e3
JB		 1803 cb->min_dump_alloc < 4096) {
1804 cb->min_dump_alloc = 4096;
f12cb289 1805 state->split_start = 0;
d98cae64 1806 rtnl_unlock();
3713b4e3
JB		 1807 return 1;
1808 }
1809 idx--;
1810 break;
645e77de 1811 }
86e8cf98 1812 } while (state->split_start > 0);
3713b4e3 1813 break;
55682965 1814 }
5fe231e8 1815 rtnl_unlock();
55682965 1816
86e8cf98 1817 state->start = idx;
55682965
JB		 1818
1819 return skb->len;
1820}
1821
86e8cf98
JB		 1822static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1823{
1824 kfree((void *)cb->args[0]);
1825 return 0;
1826}
1827
55682965
JB		 1828static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1829{
1830 struct sk_buff *msg;
1b8ec87a 1831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1832 struct nl80211_dump_wiphy_state state = {};
55682965 1833
645e77de 1834 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1835 if (!msg)
4c476991 1836 return -ENOMEM;
55682965 1837
3bb20556
JB		 1838 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1839 info->snd_portid, info->snd_seq, 0,
86e8cf98 1840 &state) < 0) {
4c476991
JB		 1841 nlmsg_free(msg);
1842 return -ENOBUFS;
1843 }
55682965 1844
134e6375 1845 return genlmsg_reply(msg, info);
55682965
JB		 1846}
1847
31888487
JM		 1848static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1849 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1850 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1851 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1852 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1853 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1854};
1855
1856static int parse_txq_params(struct nlattr *tb[],
1857 struct ieee80211_txq_params *txq_params)
1858{
a3304b0a 1859 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1860 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1861 !tb[NL80211_TXQ_ATTR_AIFS])
1862 return -EINVAL;
1863
a3304b0a 1864 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1865 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1866 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1867 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1868 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1869
a3304b0a
JB		 1870 if (txq_params->ac >= NL80211_NUM_ACS)
1871 return -EINVAL;
1872
31888487
JM		 1873 return 0;
1874}
1875
f444de05
JB		 1876static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1877{
1878 /*
cc1d2806
JB		 1879 * You can only set the channel explicitly for WDS interfaces,
1880 * all others have their channel managed via their respective
1881 * "establish a connection" command (connect, join, ...)
1882 *
1883 * For AP/GO and mesh mode, the channel can be set with the
1884 * channel userspace API, but is only stored and passed to the
1885 * low-level driver when the AP starts or the mesh is joined.
1886 * This is for backward compatibility, userspace can also give
1887 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1888 *
1889 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1890 * whatever else is going on, so they have their own special
1891 * operation to set the monitor channel if possible.
f444de05
JB		 1892 */
1893 return !wdev ||
1894 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1895 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1896 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1897 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1898}
1899
683b6d3b
JB		 1900static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1901 struct genl_info *info,
1902 struct cfg80211_chan_def *chandef)
1903{
dbeca2ea 1904 u32 control_freq;
683b6d3b
JB		 1905
1906 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1907 return -EINVAL;
1908
1909 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1910
1911 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1912 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1913 chandef->center_freq1 = control_freq;
1914 chandef->center_freq2 = 0;
683b6d3b
JB		 1915
1916 /* Primary channel not allowed */
1917 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1918 return -EINVAL;
1919
3d9d1d66
JB		 1920 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1921 enum nl80211_channel_type chantype;
1922
1923 chantype = nla_get_u32(
1924 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1925
1926 switch (chantype) {
1927 case NL80211_CHAN_NO_HT:
1928 case NL80211_CHAN_HT20:
1929 case NL80211_CHAN_HT40PLUS:
1930 case NL80211_CHAN_HT40MINUS:
1931 cfg80211_chandef_create(chandef, chandef->chan,
1932 chantype);
1933 break;
1934 default:
1935 return -EINVAL;
1936 }
1937 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1938 chandef->width =
1939 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1940 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1941 chandef->center_freq1 =
1942 nla_get_u32(
1943 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1944 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1945 chandef->center_freq2 =
1946 nla_get_u32(
1947 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1948 }
1949
9f5e8f6e 1950 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1951 return -EINVAL;
1952
9f5e8f6e
JB		 1953 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1954 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1955 return -EINVAL;
1956
2f301ab2
SW		 1957 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1958 chandef->width == NL80211_CHAN_WIDTH_10) &&
1959 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1960 return -EINVAL;
1961
683b6d3b
JB		 1962 return 0;
1963}
1964
f444de05 1965static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1966 struct net_device *dev,
f444de05
JB		 1967 struct genl_info *info)
1968{
683b6d3b 1969 struct cfg80211_chan_def chandef;
f444de05 1970 int result;
e8c9bd5b 1971 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1972 struct wireless_dev *wdev = NULL;
e8c9bd5b 1973
e16821bc
JM		 1974 if (dev)
1975 wdev = dev->ieee80211_ptr;
f444de05
JB		 1976 if (!nl80211_can_set_dev_channel(wdev))
1977 return -EOPNOTSUPP;
e16821bc
JM		 1978 if (wdev)
1979 iftype = wdev->iftype;
f444de05 1980
683b6d3b
JB		 1981 result = nl80211_parse_chandef(rdev, info, &chandef);
1982 if (result)
1983 return result;
f444de05 1984
e8c9bd5b 1985 switch (iftype) {
aa430da4
JB		 1986 case NL80211_IFTYPE_AP:
1987 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1988 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1989 result = -EINVAL;
1990 break;
1991 }
e16821bc
JM		 1992 if (wdev->beacon_interval) {
1993 if (!dev || !rdev->ops->set_ap_chanwidth ||
1994 !(rdev->wiphy.features &
1995 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1996 result = -EBUSY;
1997 break;
1998 }
1999
2000 /* Only allow dynamic channel width changes */
2001 if (chandef.chan != wdev->preset_chandef.chan) {
2002 result = -EBUSY;
2003 break;
2004 }
2005 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2006 if (result)
2007 break;
2008 }
683b6d3b 2009 wdev->preset_chandef = chandef;
aa430da4
JB		 2010 result = 0;
2011 break;
cc1d2806 2012 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2013 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2014 break;
e8c9bd5b 2015 case NL80211_IFTYPE_MONITOR:
683b6d3b 2016 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2017 break;
aa430da4 2018 default:
e8c9bd5b 2019 result = -EINVAL;
f444de05 2020 }
f444de05
JB		 2021
2022 return result;
2023}
2024
2025static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2026{
4c476991
JB		 2027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2028 struct net_device *netdev = info->user_ptr[1];
f444de05 2029
e16821bc 2030 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2031}
2032
e8347eba
BJ		 2033static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2034{
43b19952
JB		 2035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2036 struct net_device *dev = info->user_ptr[1];
2037 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2038 const u8 *bssid;
e8347eba
BJ		 2039
2040 if (!info->attrs[NL80211_ATTR_MAC])
2041 return -EINVAL;
2042
43b19952
JB		 2043 if (netif_running(dev))
2044 return -EBUSY;
e8347eba 2045
43b19952
JB		 2046 if (!rdev->ops->set_wds_peer)
2047 return -EOPNOTSUPP;
e8347eba 2048
43b19952
JB		 2049 if (wdev->iftype != NL80211_IFTYPE_WDS)
2050 return -EOPNOTSUPP;
e8347eba
BJ		 2051
2052 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2053 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2054}
2055
2056
55682965
JB		 2057static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2058{
2059 struct cfg80211_registered_device *rdev;
f444de05
JB		 2060 struct net_device *netdev = NULL;
2061 struct wireless_dev *wdev;
a1e567c8 2062 int result = 0, rem_txq_params = 0;
31888487 2063 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2064 u32 changed;
2065 u8 retry_short = 0, retry_long = 0;
2066 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2067 u8 coverage_class = 0;
55682965 2068
5fe231e8
JB		 2069 ASSERT_RTNL();
2070
f444de05
JB		 2071 /*
2072 * Try to find the wiphy and netdev. Normally this
2073 * function shouldn't need the netdev, but this is
2074 * done for backward compatibility -- previously
2075 * setting the channel was done per wiphy, but now
2076 * it is per netdev. Previous userland like hostapd
2077 * also passed a netdev to set_wiphy, so that it is
2078 * possible to let that go to the right netdev!
2079 */
4bbf4d56 2080
f444de05
JB		 2081 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2082 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2083
7f2b8562 2084 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2085 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2086 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2087 else
f444de05 2088 netdev = NULL;
4bbf4d56
JB		 2089 }
2090
f444de05 2091 if (!netdev) {
878d9ec7
JB		 2092 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2093 info->attrs);
5fe231e8 2094 if (IS_ERR(rdev))
4c476991 2095 return PTR_ERR(rdev);
f444de05
JB		 2096 wdev = NULL;
2097 netdev = NULL;
2098 result = 0;
71fe96bf 2099 } else
f444de05 2100 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2101
2102 /*
2103 * end workaround code, by now the rdev is available
2104 * and locked, and wdev may or may not be NULL.
2105 */
4bbf4d56
JB		 2106
2107 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2108 result = cfg80211_dev_rename(
2109 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2110
4bbf4d56 2111 if (result)
7f2b8562 2112 return result;
31888487
JM		 2113
2114 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2115 struct ieee80211_txq_params txq_params;
2116 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2117
7f2b8562
YX		 2118 if (!rdev->ops->set_txq_params)
2119 return -EOPNOTSUPP;
31888487 2120
7f2b8562
YX		 2121 if (!netdev)
2122 return -EINVAL;
f70f01c2 2123
133a3ff2 2124 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2125 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2126 return -EINVAL;
133a3ff2 2127
7f2b8562
YX		 2128 if (!netif_running(netdev))
2129 return -ENETDOWN;
2b5f8b0b 2130
31888487
JM		 2131 nla_for_each_nested(nl_txq_params,
2132 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2133 rem_txq_params) {
ae811e21
JB		 2134 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2135 nla_data(nl_txq_params),
2136 nla_len(nl_txq_params),
2137 txq_params_policy);
2138 if (result)
2139 return result;
31888487
JM		 2140 result = parse_txq_params(tb, &txq_params);
2141 if (result)
7f2b8562 2142 return result;
31888487 2143
e35e4d28
HG		 2144 result = rdev_set_txq_params(rdev, netdev,
2145 &txq_params);
31888487 2146 if (result)
7f2b8562 2147 return result;
31888487
JM		 2148 }
2149 }
55682965 2150
72bdcf34 2151 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2152 result = __nl80211_set_channel(
2153 rdev,
2154 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2155 info);
72bdcf34 2156 if (result)
7f2b8562 2157 return result;
72bdcf34
JM		 2158 }
2159
98d2ff8b 2160 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2161 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2162 enum nl80211_tx_power_setting type;
2163 int idx, mbm = 0;
2164
c8442118
JB		 2165 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2166 txp_wdev = NULL;
2167
7f2b8562
YX		 2168 if (!rdev->ops->set_tx_power)
2169 return -EOPNOTSUPP;
98d2ff8b
JO		 2170
2171 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2172 type = nla_get_u32(info->attrs[idx]);
2173
2174 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2175 (type != NL80211_TX_POWER_AUTOMATIC))
2176 return -EINVAL;
98d2ff8b
JO		 2177
2178 if (type != NL80211_TX_POWER_AUTOMATIC) {
2179 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2180 mbm = nla_get_u32(info->attrs[idx]);
2181 }
2182
c8442118 2183 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2184 if (result)
7f2b8562 2185 return result;
98d2ff8b
JO		 2186 }
2187
afe0cbf8
BR		 2188 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2189 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2190 u32 tx_ant, rx_ant;
7f531e03
BR		 2191 if ((!rdev->wiphy.available_antennas_tx &&
2192 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2193 !rdev->ops->set_antenna)
2194 return -EOPNOTSUPP;
afe0cbf8
BR		 2195
2196 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2197 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2198
a7ffac95 2199 /* reject antenna configurations which don't match the
7f531e03
BR		 2200 * available antenna masks, except for the "all" mask */
2201 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2202 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2203 return -EINVAL;
a7ffac95 2204
7f531e03
BR		 2205 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2206 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2207
e35e4d28 2208 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2209 if (result)
7f2b8562 2210 return result;
afe0cbf8
BR		 2211 }
2212
b9a5f8ca
JM		 2213 changed = 0;
2214
2215 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2216 retry_short = nla_get_u8(
2217 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2218 if (retry_short == 0)
2219 return -EINVAL;
2220
b9a5f8ca
JM		 2221 changed |= WIPHY_PARAM_RETRY_SHORT;
2222 }
2223
2224 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2225 retry_long = nla_get_u8(
2226 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2227 if (retry_long == 0)
2228 return -EINVAL;
2229
b9a5f8ca
JM		 2230 changed |= WIPHY_PARAM_RETRY_LONG;
2231 }
2232
2233 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2234 frag_threshold = nla_get_u32(
2235 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2236 if (frag_threshold < 256)
2237 return -EINVAL;
2238
b9a5f8ca
JM		 2239 if (frag_threshold != (u32) -1) {
2240 /*
2241 * Fragments (apart from the last one) are required to
2242 * have even length. Make the fragmentation code
2243 * simpler by stripping LSB should someone try to use
2244 * odd threshold value.
2245 */
2246 frag_threshold &= ~0x1;
2247 }
2248 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2249 }
2250
2251 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2252 rts_threshold = nla_get_u32(
2253 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2254 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2255 }
2256
81077e82 2257 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2258 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2259 return -EINVAL;
2260
81077e82
LT		 2261 coverage_class = nla_get_u8(
2262 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2263 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2264 }
2265
3057dbfd
LB		 2266 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2267 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2268 return -EOPNOTSUPP;
2269
2270 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2271 }
2272
b9a5f8ca
JM		 2273 if (changed) {
2274 u8 old_retry_short, old_retry_long;
2275 u32 old_frag_threshold, old_rts_threshold;
81077e82 2276 u8 old_coverage_class;
b9a5f8ca 2277
7f2b8562
YX		 2278 if (!rdev->ops->set_wiphy_params)
2279 return -EOPNOTSUPP;
b9a5f8ca
JM		 2280
2281 old_retry_short = rdev->wiphy.retry_short;
2282 old_retry_long = rdev->wiphy.retry_long;
2283 old_frag_threshold = rdev->wiphy.frag_threshold;
2284 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2285 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2286
2287 if (changed & WIPHY_PARAM_RETRY_SHORT)
2288 rdev->wiphy.retry_short = retry_short;
2289 if (changed & WIPHY_PARAM_RETRY_LONG)
2290 rdev->wiphy.retry_long = retry_long;
2291 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2292 rdev->wiphy.frag_threshold = frag_threshold;
2293 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2294 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2295 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2296 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2297
e35e4d28 2298 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2299 if (result) {
2300 rdev->wiphy.retry_short = old_retry_short;
2301 rdev->wiphy.retry_long = old_retry_long;
2302 rdev->wiphy.frag_threshold = old_frag_threshold;
2303 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2304 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2305 }
2306 }
7f2b8562 2307 return 0;
55682965
JB		 2308}
2309
71bbc994
JB		 2310static inline u64 wdev_id(struct wireless_dev *wdev)
2311{
2312 return (u64)wdev->identifier |
f26cbf40 2313 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2314}
55682965 2315
683b6d3b 2316static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2317 const struct cfg80211_chan_def *chandef)
683b6d3b 2318{
9f5e8f6e 2319 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2320
683b6d3b
JB		 2321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2322 chandef->chan->center_freq))
2323 return -ENOBUFS;
3d9d1d66
JB		 2324 switch (chandef->width) {
2325 case NL80211_CHAN_WIDTH_20_NOHT:
2326 case NL80211_CHAN_WIDTH_20:
2327 case NL80211_CHAN_WIDTH_40:
2328 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2329 cfg80211_get_chandef_type(chandef)))
2330 return -ENOBUFS;
2331 break;
2332 default:
2333 break;
2334 }
2335 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2336 return -ENOBUFS;
2337 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2338 return -ENOBUFS;
2339 if (chandef->center_freq2 &&
2340 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2341 return -ENOBUFS;
2342 return 0;
2343}
2344
15e47304 2345static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2346 struct cfg80211_registered_device *rdev,
72fb2abc 2347 struct wireless_dev *wdev)
55682965 2348{
72fb2abc 2349 struct net_device *dev = wdev->netdev;
55682965
JB		 2350 void *hdr;
2351
15e47304 2352 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2353 if (!hdr)
2354 return -1;
2355
72fb2abc
JB		 2356 if (dev &&
2357 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2358 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2359 goto nla_put_failure;
2360
2361 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2362 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2363 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2364 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2365 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2366 rdev->devlist_generation ^
2367 (cfg80211_rdev_list_generation << 2)))
2368 goto nla_put_failure;
f5ea9120 2369
5b7ccaf3 2370 if (rdev->ops->get_channel) {
683b6d3b
JB		 2371 int ret;
2372 struct cfg80211_chan_def chandef;
2373
2374 ret = rdev_get_channel(rdev, wdev, &chandef);
2375 if (ret == 0) {
2376 if (nl80211_send_chandef(msg, &chandef))
2377 goto nla_put_failure;
2378 }
d91df0e3
PF		 2379 }
2380
b84e7a05
AQ		 2381 if (wdev->ssid_len) {
2382 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2383 goto nla_put_failure;
2384 }
2385
55682965
JB		 2386 return genlmsg_end(msg, hdr);
2387
2388 nla_put_failure:
bc3ed28c
TG		 2389 genlmsg_cancel(msg, hdr);
2390 return -EMSGSIZE;
55682965
JB		 2391}
2392
2393static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2394{
2395 int wp_idx = 0;
2396 int if_idx = 0;
2397 int wp_start = cb->args[0];
2398 int if_start = cb->args[1];
f5ea9120 2399 struct cfg80211_registered_device *rdev;
55682965
JB		 2400 struct wireless_dev *wdev;
2401
5fe231e8 2402 rtnl_lock();
f5ea9120
JB		 2403 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2404 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2405 continue;
bba95fef
JB		 2406 if (wp_idx < wp_start) {
2407 wp_idx++;
55682965 2408 continue;
bba95fef 2409 }
55682965
JB		 2410 if_idx = 0;
2411
89a54e48 2412 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2413 if (if_idx < if_start) {
2414 if_idx++;
55682965 2415 continue;
bba95fef 2416 }
15e47304 2417 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2418 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2419 rdev, wdev) < 0) {
bba95fef
JB		 2420 goto out;
2421 }
2422 if_idx++;
55682965 2423 }
bba95fef
JB		 2424
2425 wp_idx++;
55682965 2426 }
bba95fef 2427 out:
5fe231e8 2428 rtnl_unlock();
55682965
JB		 2429
2430 cb->args[0] = wp_idx;
2431 cb->args[1] = if_idx;
2432
2433 return skb->len;
2434}
2435
2436static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2437{
2438 struct sk_buff *msg;
1b8ec87a 2439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2440 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2441
fd2120ca 2442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2443 if (!msg)
4c476991 2444 return -ENOMEM;
55682965 2445
15e47304 2446 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2447 rdev, wdev) < 0) {
4c476991
JB		 2448 nlmsg_free(msg);
2449 return -ENOBUFS;
2450 }
55682965 2451
134e6375 2452 return genlmsg_reply(msg, info);
55682965
JB		 2453}
2454
66f7ac50
MW		 2455static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2456 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2457 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2458 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2459 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2460 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2461 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2462};
2463
2464static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2465{
2466 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2467 int flag;
2468
2469 *mntrflags = 0;
2470
2471 if (!nla)
2472 return -EINVAL;
2473
2474 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2475 nla, mntr_flags_policy))
2476 return -EINVAL;
2477
2478 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2479 if (flags[flag])
2480 *mntrflags |= (1<<flag);
2481
2482 return 0;
2483}
2484
9bc383de 2485static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2486 struct net_device *netdev, u8 use_4addr,
2487 enum nl80211_iftype iftype)
9bc383de 2488{
ad4bb6f8 2489 if (!use_4addr) {
f350a0a8 2490 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2491 return -EBUSY;
9bc383de 2492 return 0;
ad4bb6f8 2493 }
9bc383de
JB		 2494
2495 switch (iftype) {
2496 case NL80211_IFTYPE_AP_VLAN:
2497 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2498 return 0;
2499 break;
2500 case NL80211_IFTYPE_STATION:
2501 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2502 return 0;
2503 break;
2504 default:
2505 break;
2506 }
2507
2508 return -EOPNOTSUPP;
2509}
2510
55682965
JB		 2511static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2512{
4c476991 2513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2514 struct vif_params params;
e36d56b6 2515 int err;
04a773ad 2516 enum nl80211_iftype otype, ntype;
4c476991 2517 struct net_device *dev = info->user_ptr[1];
92ffe055 2518 u32 _flags, *flags = NULL;
ac7f9cfa 2519 bool change = false;
55682965 2520
2ec600d6
LCC		 2521 memset(&params, 0, sizeof(params));
2522
04a773ad 2523 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2524
723b038d 2525 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2526 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2527 if (otype != ntype)
ac7f9cfa 2528 change = true;
4c476991
JB		 2529 if (ntype > NL80211_IFTYPE_MAX)
2530 return -EINVAL;
723b038d
JB		 2531 }
2532
92ffe055 2533 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2534 struct wireless_dev *wdev = dev->ieee80211_ptr;
2535
4c476991
JB		 2536 if (ntype != NL80211_IFTYPE_MESH_POINT)
2537 return -EINVAL;
29cbe68c
JB		 2538 if (netif_running(dev))
2539 return -EBUSY;
2540
2541 wdev_lock(wdev);
2542 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2543 IEEE80211_MAX_MESH_ID_LEN);
2544 wdev->mesh_id_up_len =
2545 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2546 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2547 wdev->mesh_id_up_len);
2548 wdev_unlock(wdev);
2ec600d6
LCC		 2549 }
2550
8b787643
FF		 2551 if (info->attrs[NL80211_ATTR_4ADDR]) {
2552 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2553 change = true;
ad4bb6f8 2554 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2555 if (err)
4c476991 2556 return err;
8b787643
FF		 2557 } else {
2558 params.use_4addr = -1;
2559 }
2560
92ffe055 2561 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2562 if (ntype != NL80211_IFTYPE_MONITOR)
2563 return -EINVAL;
92ffe055
JB		 2564 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2565 &_flags);
ac7f9cfa 2566 if (err)
4c476991 2567 return err;
ac7f9cfa
JB		 2568
2569 flags = &_flags;
2570 change = true;
92ffe055 2571 }
3b85875a 2572
18003297 2573 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2574 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2575 return -EOPNOTSUPP;
2576
ac7f9cfa 2577 if (change)
3d54d255 2578 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2579 else
2580 err = 0;
60719ffd 2581
9bc383de
JB		 2582 if (!err && params.use_4addr != -1)
2583 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2584
55682965
JB		 2585 return err;
2586}
2587
2588static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2589{
4c476991 2590 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2591 struct vif_params params;
84efbb84 2592 struct wireless_dev *wdev;
1c90f9d4 2593 struct sk_buff *msg;
55682965
JB		 2594 int err;
2595 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2596 u32 flags;
55682965 2597
78f22b6a
JB		 2598 /* to avoid failing a new interface creation due to pending removal */
2599 cfg80211_destroy_ifaces(rdev);
2600
2ec600d6
LCC		 2601 memset(&params, 0, sizeof(params));
2602
55682965
JB		 2603 if (!info->attrs[NL80211_ATTR_IFNAME])
2604 return -EINVAL;
2605
2606 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2607 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2608 if (type > NL80211_IFTYPE_MAX)
2609 return -EINVAL;
2610 }
2611
79c97e97 2612 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2613 !(rdev->wiphy.interface_modes & (1 << type)))
2614 return -EOPNOTSUPP;
55682965 2615
e8f479b1
BG		 2616 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2617 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2618 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2619 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2620 ETH_ALEN);
2621 if (!is_valid_ether_addr(params.macaddr))
2622 return -EADDRNOTAVAIL;
2623 }
2624
9bc383de 2625 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2626 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2627 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2628 if (err)
4c476991 2629 return err;
9bc383de 2630 }
8b787643 2631
1c90f9d4
JB		 2632 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2633 if (!msg)
2634 return -ENOMEM;
2635
66f7ac50
MW		 2636 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2637 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2638 &flags);
e057d3c3 2639
18003297 2640 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2641 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2642 return -EOPNOTSUPP;
2643
e35e4d28
HG		 2644 wdev = rdev_add_virtual_intf(rdev,
2645 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2646 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2647 if (IS_ERR(wdev)) {
2648 nlmsg_free(msg);
84efbb84 2649 return PTR_ERR(wdev);
1c90f9d4 2650 }
2ec600d6 2651
78f22b6a
JB		 2652 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2653 wdev->owner_nlportid = info->snd_portid;
2654
98104fde
JB		 2655 switch (type) {
2656 case NL80211_IFTYPE_MESH_POINT:
2657 if (!info->attrs[NL80211_ATTR_MESH_ID])
2658 break;
29cbe68c
JB		 2659 wdev_lock(wdev);
2660 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2661 IEEE80211_MAX_MESH_ID_LEN);
2662 wdev->mesh_id_up_len =
2663 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2664 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2665 wdev->mesh_id_up_len);
2666 wdev_unlock(wdev);
98104fde
JB		 2667 break;
2668 case NL80211_IFTYPE_P2P_DEVICE:
2669 /*
2670 * P2P Device doesn't have a netdev, so doesn't go
2671 * through the netdev notifier and must be added here
2672 */
2673 mutex_init(&wdev->mtx);
2674 INIT_LIST_HEAD(&wdev->event_list);
2675 spin_lock_init(&wdev->event_lock);
2676 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2677 spin_lock_init(&wdev->mgmt_registrations_lock);
2678
98104fde
JB		 2679 wdev->identifier = ++rdev->wdev_id;
2680 list_add_rcu(&wdev->list, &rdev->wdev_list);
2681 rdev->devlist_generation++;
98104fde
JB		 2682 break;
2683 default:
2684 break;
29cbe68c
JB		 2685 }
2686
15e47304 2687 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2688 rdev, wdev) < 0) {
2689 nlmsg_free(msg);
2690 return -ENOBUFS;
2691 }
2692
2693 return genlmsg_reply(msg, info);
55682965
JB		 2694}
2695
2696static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2697{
4c476991 2698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2699 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2700
4c476991
JB		 2701 if (!rdev->ops->del_virtual_intf)
2702 return -EOPNOTSUPP;
55682965 2703
84efbb84
JB		 2704 /*
2705 * If we remove a wireless device without a netdev then clear
2706 * user_ptr[1] so that nl80211_post_doit won't dereference it
2707 * to check if it needs to do dev_put(). Otherwise it crashes
2708 * since the wdev has been freed, unlike with a netdev where
2709 * we need the dev_put() for the netdev to really be freed.
2710 */
2711 if (!wdev->netdev)
2712 info->user_ptr[1] = NULL;
2713
e35e4d28 2714 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2715}
2716
1d9d9213
SW		 2717static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2718{
2719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2720 struct net_device *dev = info->user_ptr[1];
2721 u16 noack_map;
2722
2723 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2724 return -EINVAL;
2725
2726 if (!rdev->ops->set_noack_map)
2727 return -EOPNOTSUPP;
2728
2729 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2730
e35e4d28 2731 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2732}
2733
41ade00f
JB		 2734struct get_key_cookie {
2735 struct sk_buff *msg;
2736 int error;
b9454e83 2737 int idx;
41ade00f
JB		 2738};
2739
2740static void get_key_callback(void *c, struct key_params *params)
2741{
b9454e83 2742 struct nlattr *key;
41ade00f
JB		 2743 struct get_key_cookie *cookie = c;
2744
9360ffd1
DM		 2745 if ((params->key &&
2746 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2747 params->key_len, params->key)) ||
2748 (params->seq &&
2749 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2750 params->seq_len, params->seq)) ||
2751 (params->cipher &&
2752 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2753 params->cipher)))
2754 goto nla_put_failure;
41ade00f 2755
b9454e83
JB		 2756 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2757 if (!key)
2758 goto nla_put_failure;
2759
9360ffd1
DM		 2760 if ((params->key &&
2761 nla_put(cookie->msg, NL80211_KEY_DATA,
2762 params->key_len, params->key)) ||
2763 (params->seq &&
2764 nla_put(cookie->msg, NL80211_KEY_SEQ,
2765 params->seq_len, params->seq)) ||
2766 (params->cipher &&
2767 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2768 params->cipher)))
2769 goto nla_put_failure;
b9454e83 2770
9360ffd1
DM		 2771 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2772 goto nla_put_failure;
b9454e83
JB		 2773
2774 nla_nest_end(cookie->msg, key);
2775
41ade00f
JB		 2776 return;
2777 nla_put_failure:
2778 cookie->error = 1;
2779}
2780
2781static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2782{
4c476991 2783 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2784 int err;
4c476991 2785 struct net_device *dev = info->user_ptr[1];
41ade00f 2786 u8 key_idx = 0;
e31b8213
JB		 2787 const u8 *mac_addr = NULL;
2788 bool pairwise;
41ade00f
JB		 2789 struct get_key_cookie cookie = {
2790 .error = 0,
2791 };
2792 void *hdr;
2793 struct sk_buff *msg;
2794
2795 if (info->attrs[NL80211_ATTR_KEY_IDX])
2796 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2797
3cfcf6ac 2798 if (key_idx > 5)
41ade00f
JB		 2799 return -EINVAL;
2800
2801 if (info->attrs[NL80211_ATTR_MAC])
2802 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2803
e31b8213
JB		 2804 pairwise = !!mac_addr;
2805 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2806 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2807 if (kt >= NUM_NL80211_KEYTYPES)
2808 return -EINVAL;
2809 if (kt != NL80211_KEYTYPE_GROUP &&
2810 kt != NL80211_KEYTYPE_PAIRWISE)
2811 return -EINVAL;
2812 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2813 }
2814
4c476991
JB		 2815 if (!rdev->ops->get_key)
2816 return -EOPNOTSUPP;
41ade00f 2817
fd2120ca 2818 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2819 if (!msg)
2820 return -ENOMEM;
41ade00f 2821
15e47304 2822 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2823 NL80211_CMD_NEW_KEY);
cb35fba3 2824 if (!hdr)
9fe271af 2825 goto nla_put_failure;
41ade00f
JB		 2826
2827 cookie.msg = msg;
b9454e83 2828 cookie.idx = key_idx;
41ade00f 2829
9360ffd1
DM		 2830 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2831 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2832 goto nla_put_failure;
2833 if (mac_addr &&
2834 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2835 goto nla_put_failure;
41ade00f 2836
e31b8213
JB		 2837 if (pairwise && mac_addr &&
2838 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2839 return -ENOENT;
2840
e35e4d28
HG		 2841 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2842 get_key_callback);
41ade00f
JB		 2843
2844 if (err)
6c95e2a2 2845 goto free_msg;
41ade00f
JB		 2846
2847 if (cookie.error)
2848 goto nla_put_failure;
2849
2850 genlmsg_end(msg, hdr);
4c476991 2851 return genlmsg_reply(msg, info);
41ade00f
JB		 2852
2853 nla_put_failure:
2854 err = -ENOBUFS;
6c95e2a2 2855 free_msg:
41ade00f 2856 nlmsg_free(msg);
41ade00f
JB		 2857 return err;
2858}
2859
2860static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2861{
4c476991 2862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2863 struct key_parse key;
41ade00f 2864 int err;
4c476991 2865 struct net_device *dev = info->user_ptr[1];
41ade00f 2866
b9454e83
JB		 2867 err = nl80211_parse_key(info, &key);
2868 if (err)
2869 return err;
41ade00f 2870
b9454e83 2871 if (key.idx < 0)
41ade00f
JB		 2872 return -EINVAL;
2873
b9454e83
JB		 2874 /* only support setting default key */
2875 if (!key.def && !key.defmgmt)
41ade00f
JB		 2876 return -EINVAL;
2877
dbd2fd65 2878 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2879
dbd2fd65
JB		 2880 if (key.def) {
2881 if (!rdev->ops->set_default_key) {
2882 err = -EOPNOTSUPP;
2883 goto out;
2884 }
41ade00f 2885
dbd2fd65
JB		 2886 err = nl80211_key_allowed(dev->ieee80211_ptr);
2887 if (err)
2888 goto out;
2889
e35e4d28 2890 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2891 key.def_uni, key.def_multi);
2892
2893 if (err)
2894 goto out;
fffd0934 2895
3d23e349 2896#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2897 dev->ieee80211_ptr->wext.default_key = key.idx;
2898#endif
2899 } else {
2900 if (key.def_uni || !key.def_multi) {
2901 err = -EINVAL;
2902 goto out;
2903 }
2904
2905 if (!rdev->ops->set_default_mgmt_key) {
2906 err = -EOPNOTSUPP;
2907 goto out;
2908 }
2909
2910 err = nl80211_key_allowed(dev->ieee80211_ptr);
2911 if (err)
2912 goto out;
2913
e35e4d28 2914 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2915 if (err)
2916 goto out;
2917
2918#ifdef CONFIG_CFG80211_WEXT
2919 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2920#endif
dbd2fd65
JB		 2921 }
2922
2923 out:
fffd0934 2924 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2925
41ade00f
JB		 2926 return err;
2927}
2928
2929static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2930{
4c476991 2931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2932 int err;
4c476991 2933 struct net_device *dev = info->user_ptr[1];
b9454e83 2934 struct key_parse key;
e31b8213 2935 const u8 *mac_addr = NULL;
41ade00f 2936
b9454e83
JB		 2937 err = nl80211_parse_key(info, &key);
2938 if (err)
2939 return err;
41ade00f 2940
b9454e83 2941 if (!key.p.key)
41ade00f
JB		 2942 return -EINVAL;
2943
41ade00f
JB		 2944 if (info->attrs[NL80211_ATTR_MAC])
2945 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2946
e31b8213
JB		 2947 if (key.type == -1) {
2948 if (mac_addr)
2949 key.type = NL80211_KEYTYPE_PAIRWISE;
2950 else
2951 key.type = NL80211_KEYTYPE_GROUP;
2952 }
2953
2954 /* for now */
2955 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2956 key.type != NL80211_KEYTYPE_GROUP)
2957 return -EINVAL;
2958
4c476991
JB		 2959 if (!rdev->ops->add_key)
2960 return -EOPNOTSUPP;
25e47c18 2961
e31b8213
JB		 2962 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2963 key.type == NL80211_KEYTYPE_PAIRWISE,
2964 mac_addr))
4c476991 2965 return -EINVAL;
41ade00f 2966
fffd0934
JB		 2967 wdev_lock(dev->ieee80211_ptr);
2968 err = nl80211_key_allowed(dev->ieee80211_ptr);
2969 if (!err)
e35e4d28
HG		 2970 err = rdev_add_key(rdev, dev, key.idx,
2971 key.type == NL80211_KEYTYPE_PAIRWISE,
2972 mac_addr, &key.p);
fffd0934 2973 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2974
41ade00f
JB		 2975 return err;
2976}
2977
2978static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2979{
4c476991 2980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2981 int err;
4c476991 2982 struct net_device *dev = info->user_ptr[1];
41ade00f 2983 u8 *mac_addr = NULL;
b9454e83 2984 struct key_parse key;
41ade00f 2985
b9454e83
JB		 2986 err = nl80211_parse_key(info, &key);
2987 if (err)
2988 return err;
41ade00f
JB		 2989
2990 if (info->attrs[NL80211_ATTR_MAC])
2991 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2992
e31b8213
JB		 2993 if (key.type == -1) {
2994 if (mac_addr)
2995 key.type = NL80211_KEYTYPE_PAIRWISE;
2996 else
2997 key.type = NL80211_KEYTYPE_GROUP;
2998 }
2999
3000 /* for now */
3001 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3002 key.type != NL80211_KEYTYPE_GROUP)
3003 return -EINVAL;
3004
4c476991
JB		 3005 if (!rdev->ops->del_key)
3006 return -EOPNOTSUPP;
41ade00f 3007
fffd0934
JB		 3008 wdev_lock(dev->ieee80211_ptr);
3009 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3010
3011 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3012 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3013 err = -ENOENT;
3014
fffd0934 3015 if (!err)
e35e4d28
HG		 3016 err = rdev_del_key(rdev, dev, key.idx,
3017 key.type == NL80211_KEYTYPE_PAIRWISE,
3018 mac_addr);
41ade00f 3019
3d23e349 3020#ifdef CONFIG_CFG80211_WEXT
08645126 3021 if (!err) {
b9454e83 3022 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3023 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3024 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3025 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3026 }
3027#endif
fffd0934 3028 wdev_unlock(dev->ieee80211_ptr);
08645126 3029
41ade00f
JB		 3030 return err;
3031}
3032
77765eaf
VT		 3033/* This function returns an error or the number of nested attributes */
3034static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3035{
3036 struct nlattr *attr;
3037 int n_entries = 0, tmp;
3038
3039 nla_for_each_nested(attr, nl_attr, tmp) {
3040 if (nla_len(attr) != ETH_ALEN)
3041 return -EINVAL;
3042
3043 n_entries++;
3044 }
3045
3046 return n_entries;
3047}
3048
3049/*
3050 * This function parses ACL information and allocates memory for ACL data.
3051 * On successful return, the calling function is responsible to free the
3052 * ACL buffer returned by this function.
3053 */
3054static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3055 struct genl_info *info)
3056{
3057 enum nl80211_acl_policy acl_policy;
3058 struct nlattr *attr;
3059 struct cfg80211_acl_data *acl;
3060 int i = 0, n_entries, tmp;
3061
3062 if (!wiphy->max_acl_mac_addrs)
3063 return ERR_PTR(-EOPNOTSUPP);
3064
3065 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3066 return ERR_PTR(-EINVAL);
3067
3068 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3069 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3070 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3071 return ERR_PTR(-EINVAL);
3072
3073 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3074 return ERR_PTR(-EINVAL);
3075
3076 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3077 if (n_entries < 0)
3078 return ERR_PTR(n_entries);
3079
3080 if (n_entries > wiphy->max_acl_mac_addrs)
3081 return ERR_PTR(-ENOTSUPP);
3082
3083 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3084 GFP_KERNEL);
3085 if (!acl)
3086 return ERR_PTR(-ENOMEM);
3087
3088 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3089 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3090 i++;
3091 }
3092
3093 acl->n_acl_entries = n_entries;
3094 acl->acl_policy = acl_policy;
3095
3096 return acl;
3097}
3098
3099static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3100{
3101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3102 struct net_device *dev = info->user_ptr[1];
3103 struct cfg80211_acl_data *acl;
3104 int err;
3105
3106 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3107 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3108 return -EOPNOTSUPP;
3109
3110 if (!dev->ieee80211_ptr->beacon_interval)
3111 return -EINVAL;
3112
3113 acl = parse_acl_data(&rdev->wiphy, info);
3114 if (IS_ERR(acl))
3115 return PTR_ERR(acl);
3116
3117 err = rdev_set_mac_acl(rdev, dev, acl);
3118
3119 kfree(acl);
3120
3121 return err;
3122}
3123
a1193be8 3124static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3125 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3126{
8860020e 3127 bool haveinfo = false;
ed1b6cc7 3128
a1193be8
SW		 3129 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3130 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3131 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3132 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3133 return -EINVAL;
3134
8860020e 3135 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3136
a1193be8
SW		 3137 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3138 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3139 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3140 if (!bcn->head_len)
3141 return -EINVAL;
3142 haveinfo = true;
ed1b6cc7
JB		 3143 }
3144
a1193be8
SW		 3145 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3146 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3147 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3148 haveinfo = true;
ed1b6cc7
JB		 3149 }
3150
4c476991
JB		 3151 if (!haveinfo)
3152 return -EINVAL;
3b85875a 3153
a1193be8
SW		 3154 if (attrs[NL80211_ATTR_IE]) {
3155 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3156 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3157 }
3158
a1193be8 3159 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3160 bcn->proberesp_ies =
a1193be8 3161 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3162 bcn->proberesp_ies_len =
a1193be8 3163 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3164 }
3165
a1193be8 3166 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3167 bcn->assocresp_ies =
a1193be8 3168 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3169 bcn->assocresp_ies_len =
a1193be8 3170 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3171 }
3172
a1193be8
SW		 3173 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3174 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3175 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3176 }
3177
8860020e
JB		 3178 return 0;
3179}
3180
46c1dd0c
FF		 3181static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3182 struct cfg80211_ap_settings *params)
3183{
3184 struct wireless_dev *wdev;
3185 bool ret = false;
3186
89a54e48 3187 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3188 if (wdev->iftype != NL80211_IFTYPE_AP &&
3189 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3190 continue;
3191
683b6d3b 3192 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3193 continue;
3194
683b6d3b 3195 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3196 ret = true;
3197 break;
3198 }
3199
46c1dd0c
FF		 3200 return ret;
3201}
3202
e39e5b5e
JM		 3203static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3204 enum nl80211_auth_type auth_type,
3205 enum nl80211_commands cmd)
3206{
3207 if (auth_type > NL80211_AUTHTYPE_MAX)
3208 return false;
3209
3210 switch (cmd) {
3211 case NL80211_CMD_AUTHENTICATE:
3212 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3213 auth_type == NL80211_AUTHTYPE_SAE)
3214 return false;
3215 return true;
3216 case NL80211_CMD_CONNECT:
3217 case NL80211_CMD_START_AP:
3218 /* SAE not supported yet */
3219 if (auth_type == NL80211_AUTHTYPE_SAE)
3220 return false;
3221 return true;
3222 default:
3223 return false;
3224 }
3225}
3226
8860020e
JB		 3227static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3228{
3229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3230 struct net_device *dev = info->user_ptr[1];
3231 struct wireless_dev *wdev = dev->ieee80211_ptr;
3232 struct cfg80211_ap_settings params;
3233 int err;
3234
3235 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3236 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3237 return -EOPNOTSUPP;
3238
3239 if (!rdev->ops->start_ap)
3240 return -EOPNOTSUPP;
3241
3242 if (wdev->beacon_interval)
3243 return -EALREADY;
3244
3245 memset(&params, 0, sizeof(params));
3246
3247 /* these are required for START_AP */
3248 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3249 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3250 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3251 return -EINVAL;
3252
a1193be8 3253 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3254 if (err)
3255 return err;
3256
3257 params.beacon_interval =
3258 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3259 params.dtim_period =
3260 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3261
3262 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3263 if (err)
3264 return err;
3265
3266 /*
3267 * In theory, some of these attributes should be required here
3268 * but since they were not used when the command was originally
3269 * added, keep them optional for old user space programs to let
3270 * them continue to work with drivers that do not need the
3271 * additional information -- drivers must check!
3272 */
3273 if (info->attrs[NL80211_ATTR_SSID]) {
3274 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3275 params.ssid_len =
3276 nla_len(info->attrs[NL80211_ATTR_SSID]);
3277 if (params.ssid_len == 0 ||
3278 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3279 return -EINVAL;
3280 }
3281
3282 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3283 params.hidden_ssid = nla_get_u32(
3284 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3285 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3286 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3287 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3288 return -EINVAL;
3289 }
3290
3291 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3292
3293 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3294 params.auth_type = nla_get_u32(
3295 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3296 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3297 NL80211_CMD_START_AP))
8860020e
JB		 3298 return -EINVAL;
3299 } else
3300 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3301
3302 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3303 NL80211_MAX_NR_CIPHER_SUITES);
3304 if (err)
3305 return err;
3306
1b658f11
VT		 3307 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3308 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3309 return -EOPNOTSUPP;
3310 params.inactivity_timeout = nla_get_u16(
3311 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3312 }
3313
53cabad7
JB		 3314 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3315 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3316 return -EINVAL;
3317 params.p2p_ctwindow =
3318 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3319 if (params.p2p_ctwindow > 127)
3320 return -EINVAL;
3321 if (params.p2p_ctwindow != 0 &&
3322 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3323 return -EINVAL;
3324 }
3325
3326 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3327 u8 tmp;
3328
3329 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3330 return -EINVAL;
3331 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3332 if (tmp > 1)
3333 return -EINVAL;
3334 params.p2p_opp_ps = tmp;
3335 if (params.p2p_opp_ps != 0 &&
3336 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3337 return -EINVAL;
3338 }
3339
aa430da4 3340 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3341 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3342 if (err)
3343 return err;
3344 } else if (wdev->preset_chandef.chan) {
3345 params.chandef = wdev->preset_chandef;
46c1dd0c 3346 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3347 return -EINVAL;
3348
174e0cd2
IP		 3349 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3350 wdev->iftype))
aa430da4
JB		 3351 return -EINVAL;
3352
77765eaf
VT		 3353 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3354 params.acl = parse_acl_data(&rdev->wiphy, info);
3355 if (IS_ERR(params.acl))
3356 return PTR_ERR(params.acl);
3357 }
3358
18998c38
EP		 3359 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3360 params.smps_mode =
3361 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3362 switch (params.smps_mode) {
3363 case NL80211_SMPS_OFF:
3364 break;
3365 case NL80211_SMPS_STATIC:
3366 if (!(rdev->wiphy.features &
3367 NL80211_FEATURE_STATIC_SMPS))
3368 return -EINVAL;
3369 break;
3370 case NL80211_SMPS_DYNAMIC:
3371 if (!(rdev->wiphy.features &
3372 NL80211_FEATURE_DYNAMIC_SMPS))
3373 return -EINVAL;
3374 break;
3375 default:
3376 return -EINVAL;
3377 }
3378 } else {
3379 params.smps_mode = NL80211_SMPS_OFF;
3380 }
3381
c56589ed 3382 wdev_lock(wdev);
e35e4d28 3383 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3384 if (!err) {
683b6d3b 3385 wdev->preset_chandef = params.chandef;
8860020e 3386 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3387 wdev->chandef = params.chandef;
06e191e2
AQ		 3388 wdev->ssid_len = params.ssid_len;
3389 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3390 }
c56589ed 3391 wdev_unlock(wdev);
77765eaf
VT		 3392
3393 kfree(params.acl);
3394
56d1893d 3395 return err;
ed1b6cc7
JB		 3396}
3397
8860020e
JB		 3398static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3399{
3400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3401 struct net_device *dev = info->user_ptr[1];
3402 struct wireless_dev *wdev = dev->ieee80211_ptr;
3403 struct cfg80211_beacon_data params;
3404 int err;
3405
3406 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3407 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3408 return -EOPNOTSUPP;
3409
3410 if (!rdev->ops->change_beacon)
3411 return -EOPNOTSUPP;
3412
3413 if (!wdev->beacon_interval)
3414 return -EINVAL;
3415
a1193be8 3416 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3417 if (err)
3418 return err;
3419
c56589ed
SW		 3420 wdev_lock(wdev);
3421 err = rdev_change_beacon(rdev, dev, &params);
3422 wdev_unlock(wdev);
3423
3424 return err;
8860020e
JB		 3425}
3426
3427static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3428{
4c476991
JB		 3429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3430 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3431
7c8d5e03 3432 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3433}
3434
5727ef1b
JB		 3435static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3436 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3437 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3438 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3439 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3440 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3441 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3442};
3443
eccb8e8f 3444static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3445 enum nl80211_iftype iftype,
eccb8e8f 3446 struct station_parameters *params)
5727ef1b
JB		 3447{
3448 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3449 struct nlattr *nla;
5727ef1b
JB		 3450 int flag;
3451
eccb8e8f
JB		 3452 /*
3453 * Try parsing the new attribute first so userspace
3454 * can specify both for older kernels.
3455 */
3456 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3457 if (nla) {
3458 struct nl80211_sta_flag_update *sta_flags;
3459
3460 sta_flags = nla_data(nla);
3461 params->sta_flags_mask = sta_flags->mask;
3462 params->sta_flags_set = sta_flags->set;
77ee7c89 3463 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3464 if ((params->sta_flags_mask |
3465 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3466 return -EINVAL;
3467 return 0;
3468 }
3469
3470 /* if present, parse the old attribute */
5727ef1b 3471
eccb8e8f 3472 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3473 if (!nla)
3474 return 0;
3475
3476 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3477 nla, sta_flags_policy))
3478 return -EINVAL;
3479
bdd3ae3d
JB		 3480 /*
3481 * Only allow certain flags for interface types so that
3482 * other attributes are silently ignored. Remember that
3483 * this is backward compatibility code with old userspace
3484 * and shouldn't be hit in other cases anyway.
3485 */
3486 switch (iftype) {
3487 case NL80211_IFTYPE_AP:
3488 case NL80211_IFTYPE_AP_VLAN:
3489 case NL80211_IFTYPE_P2P_GO:
3490 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3491 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3492 BIT(NL80211_STA_FLAG_WME) |
3493 BIT(NL80211_STA_FLAG_MFP);
3494 break;
3495 case NL80211_IFTYPE_P2P_CLIENT:
3496 case NL80211_IFTYPE_STATION:
3497 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3498 BIT(NL80211_STA_FLAG_TDLS_PEER);
3499 break;
3500 case NL80211_IFTYPE_MESH_POINT:
3501 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3502 BIT(NL80211_STA_FLAG_MFP) |
3503 BIT(NL80211_STA_FLAG_AUTHORIZED);
3504 default:
3505 return -EINVAL;
3506 }
5727ef1b 3507
3383b5a6
JB		 3508 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3509 if (flags[flag]) {
eccb8e8f 3510 params->sta_flags_set |= (1<<flag);
5727ef1b 3511
3383b5a6
JB		 3512 /* no longer support new API additions in old API */
3513 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3514 return -EINVAL;
3515 }
3516 }
3517
5727ef1b
JB		 3518 return 0;
3519}
3520
c8dcfd8a
FF		 3521static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3522 int attr)
3523{
3524 struct nlattr *rate;
8eb41c8d
VK		 3525 u32 bitrate;
3526 u16 bitrate_compat;
c8dcfd8a
FF		 3527
3528 rate = nla_nest_start(msg, attr);
3529 if (!rate)
db9c64cf 3530 return false;
c8dcfd8a
FF		 3531
3532 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3533 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3534 /* report 16-bit bitrate only if we can */
3535 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3536 if (bitrate > 0 &&
3537 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3538 return false;
3539 if (bitrate_compat > 0 &&
3540 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3541 return false;
3542
3543 if (info->flags & RATE_INFO_FLAGS_MCS) {
3544 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3545 return false;
3546 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3547 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3548 return false;
3549 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3550 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3551 return false;
3552 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3553 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3554 return false;
3555 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3556 return false;
3557 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3558 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3559 return false;
3560 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3561 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3562 return false;
3563 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3564 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3565 return false;
3566 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3567 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3568 return false;
3569 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3570 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3571 return false;
3572 }
c8dcfd8a
FF		 3573
3574 nla_nest_end(msg, rate);
3575 return true;
c8dcfd8a
FF		 3576}
3577
119363c7
FF		 3578static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3579 int id)
3580{
3581 void *attr;
3582 int i = 0;
3583
3584 if (!mask)
3585 return true;
3586
3587 attr = nla_nest_start(msg, id);
3588 if (!attr)
3589 return false;
3590
3591 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3592 if (!(mask & BIT(i)))
3593 continue;
3594
3595 if (nla_put_u8(msg, i, signal[i]))
3596 return false;
3597 }
3598
3599 nla_nest_end(msg, attr);
3600
3601 return true;
3602}
3603
15e47304 3604static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3605 int flags,
3606 struct cfg80211_registered_device *rdev,
3607 struct net_device *dev,
98b62183 3608 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3609{
3610 void *hdr;
f4263c98 3611 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3612
15e47304 3613 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3614 if (!hdr)
3615 return -1;
3616
9360ffd1
DM		 3617 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3618 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3619 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3620 goto nla_put_failure;
f5ea9120 3621
2ec600d6
LCC		 3622 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3623 if (!sinfoattr)
fd5b74dc 3624 goto nla_put_failure;
9360ffd1
DM		 3625 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3626 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3627 sinfo->connected_time))
3628 goto nla_put_failure;
3629 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3630 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3631 sinfo->inactive_time))
3632 goto nla_put_failure;
42745e03
VK		 3633 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3634 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3635 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3636 (u32)sinfo->rx_bytes))
9360ffd1 3637 goto nla_put_failure;
42745e03 3638 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3639 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3640 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3641 (u32)sinfo->tx_bytes))
3642 goto nla_put_failure;
3643 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3644 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3645 sinfo->rx_bytes))
3646 goto nla_put_failure;
3647 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3648 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3649 sinfo->tx_bytes))
3650 goto nla_put_failure;
3651 if ((sinfo->filled & STATION_INFO_LLID) &&
3652 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3653 goto nla_put_failure;
3654 if ((sinfo->filled & STATION_INFO_PLID) &&
3655 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3656 goto nla_put_failure;
3657 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3658 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3659 sinfo->plink_state))
3660 goto nla_put_failure;
66266b3a
JL		 3661 switch (rdev->wiphy.signal_type) {
3662 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3663 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3664 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3665 sinfo->signal))
3666 goto nla_put_failure;
3667 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3668 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3669 sinfo->signal_avg))
3670 goto nla_put_failure;
66266b3a
JL		 3671 break;
3672 default:
3673 break;
3674 }
119363c7
FF		 3675 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3676 if (!nl80211_put_signal(msg, sinfo->chains,
3677 sinfo->chain_signal,
3678 NL80211_STA_INFO_CHAIN_SIGNAL))
3679 goto nla_put_failure;
3680 }
3681 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3682 if (!nl80211_put_signal(msg, sinfo->chains,
3683 sinfo->chain_signal_avg,
3684 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3685 goto nla_put_failure;
3686 }
420e7fab 3687 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3688 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3689 NL80211_STA_INFO_TX_BITRATE))
3690 goto nla_put_failure;
3691 }
3692 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3693 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3694 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3695 goto nla_put_failure;
420e7fab 3696 }
9360ffd1
DM		 3697 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3698 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3699 sinfo->rx_packets))
3700 goto nla_put_failure;
3701 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3702 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3703 sinfo->tx_packets))
3704 goto nla_put_failure;
3705 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3706 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3707 sinfo->tx_retries))
3708 goto nla_put_failure;
3709 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3710 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3711 sinfo->tx_failed))
3712 goto nla_put_failure;
867d849f
AQ		 3713 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3714 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3715 sinfo->expected_throughput))
3716 goto nla_put_failure;
9360ffd1
DM		 3717 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3718 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3719 sinfo->beacon_loss_count))
3720 goto nla_put_failure;
3b1c5a53
MP		 3721 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3722 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3723 sinfo->local_pm))
3724 goto nla_put_failure;
3725 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3726 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3727 sinfo->peer_pm))
3728 goto nla_put_failure;
3729 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3730 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3731 sinfo->nonpeer_pm))
3732 goto nla_put_failure;
f4263c98
PS		 3733 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3734 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3735 if (!bss_param)
3736 goto nla_put_failure;
3737
9360ffd1
DM		 3738 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3739 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3740 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3741 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3742 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3743 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3744 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3745 sinfo->bss_param.dtim_period) ||
3746 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3747 sinfo->bss_param.beacon_interval))
3748 goto nla_put_failure;
f4263c98
PS		 3749
3750 nla_nest_end(msg, bss_param);
3751 }
9360ffd1
DM		 3752 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3753 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3754 sizeof(struct nl80211_sta_flag_update),
3755 &sinfo->sta_flags))
3756 goto nla_put_failure;
7eab0f64
JL		 3757 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3758 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3759 sinfo->t_offset))
3760 goto nla_put_failure;
2ec600d6 3761 nla_nest_end(msg, sinfoattr);
fd5b74dc 3762
9360ffd1
DM		 3763 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3764 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3765 sinfo->assoc_req_ies))
3766 goto nla_put_failure;
50d3dfb7 3767
fd5b74dc
JB		 3768 return genlmsg_end(msg, hdr);
3769
3770 nla_put_failure:
bc3ed28c
TG		 3771 genlmsg_cancel(msg, hdr);
3772 return -EMSGSIZE;
fd5b74dc
JB		 3773}
3774
2ec600d6 3775static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3776 struct netlink_callback *cb)
2ec600d6 3777{
2ec600d6 3778 struct station_info sinfo;
1b8ec87a 3779 struct cfg80211_registered_device *rdev;
97990a06 3780 struct wireless_dev *wdev;
2ec600d6 3781 u8 mac_addr[ETH_ALEN];
97990a06 3782 int sta_idx = cb->args[2];
2ec600d6 3783 int err;
2ec600d6 3784
1b8ec87a 3785 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3786 if (err)
3787 return err;
bba95fef 3788
97990a06
JB		 3789 if (!wdev->netdev) {
3790 err = -EINVAL;
3791 goto out_err;
3792 }
3793
1b8ec87a 3794 if (!rdev->ops->dump_station) {
eec60b03 3795 err = -EOPNOTSUPP;
bba95fef
JB		 3796 goto out_err;
3797 }
3798
bba95fef 3799 while (1) {
f612cedf 3800 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3801 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3802 mac_addr, &sinfo);
bba95fef
JB		 3803 if (err == -ENOENT)
3804 break;
3805 if (err)
3b85875a 3806 goto out_err;
bba95fef
JB		 3807
3808 if (nl80211_send_station(skb,
15e47304 3809 NETLINK_CB(cb->skb).portid,
bba95fef 3810 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3811 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3812 &sinfo) < 0)
3813 goto out;
3814
3815 sta_idx++;
3816 }
3817
3818
3819 out:
97990a06 3820 cb->args[2] = sta_idx;
bba95fef 3821 err = skb->len;
bba95fef 3822 out_err:
1b8ec87a 3823 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3824
3825 return err;
2ec600d6 3826}
fd5b74dc 3827
5727ef1b
JB		 3828static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3829{
4c476991
JB		 3830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3831 struct net_device *dev = info->user_ptr[1];
2ec600d6 3832 struct station_info sinfo;
fd5b74dc
JB		 3833 struct sk_buff *msg;
3834 u8 *mac_addr = NULL;
4c476991 3835 int err;
fd5b74dc 3836
2ec600d6 3837 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3838
3839 if (!info->attrs[NL80211_ATTR_MAC])
3840 return -EINVAL;
3841
3842 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3843
4c476991
JB		 3844 if (!rdev->ops->get_station)
3845 return -EOPNOTSUPP;
3b85875a 3846
e35e4d28 3847 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3848 if (err)
4c476991 3849 return err;
2ec600d6 3850
fd2120ca 3851 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3852 if (!msg)
4c476991 3853 return -ENOMEM;
fd5b74dc 3854
15e47304 3855 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3856 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3857 nlmsg_free(msg);
3858 return -ENOBUFS;
3859 }
3b85875a 3860
4c476991 3861 return genlmsg_reply(msg, info);
5727ef1b
JB		 3862}
3863
77ee7c89
JB		 3864int cfg80211_check_station_change(struct wiphy *wiphy,
3865 struct station_parameters *params,
3866 enum cfg80211_station_type statype)
3867{
3868 if (params->listen_interval != -1)
3869 return -EINVAL;
c72e1140
AN		 3870 if (params->aid &&
3871 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3872 return -EINVAL;
3873
3874 /* When you run into this, adjust the code below for the new flag */
3875 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3876
3877 switch (statype) {
eef941e6
TP		 3878 case CFG80211_STA_MESH_PEER_KERNEL:
3879 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3880 /*
3881 * No ignoring the TDLS flag here -- the userspace mesh
3882 * code doesn't have the bug of including TDLS in the
3883 * mask everywhere.
3884 */
3885 if (params->sta_flags_mask &
3886 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3887 BIT(NL80211_STA_FLAG_MFP) |
3888 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3889 return -EINVAL;
3890 break;
3891 case CFG80211_STA_TDLS_PEER_SETUP:
3892 case CFG80211_STA_TDLS_PEER_ACTIVE:
3893 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3894 return -EINVAL;
3895 /* ignore since it can't change */
3896 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3897 break;
3898 default:
3899 /* disallow mesh-specific things */
3900 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3901 return -EINVAL;
3902 if (params->local_pm)
3903 return -EINVAL;
3904 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3905 return -EINVAL;
3906 }
3907
3908 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3909 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3910 /* TDLS can't be set, ... */
3911 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3912 return -EINVAL;
3913 /*
3914 * ... but don't bother the driver with it. This works around
3915 * a hostapd/wpa_supplicant issue -- it always includes the
3916 * TLDS_PEER flag in the mask even for AP mode.
3917 */
3918 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3919 }
3920
3921 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3922 /* reject other things that can't change */
3923 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3924 return -EINVAL;
3925 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3926 return -EINVAL;
3927 if (params->supported_rates)
3928 return -EINVAL;
3929 if (params->ext_capab || params->ht_capa || params->vht_capa)
3930 return -EINVAL;
3931 }
3932
3933 if (statype != CFG80211_STA_AP_CLIENT) {
3934 if (params->vlan)
3935 return -EINVAL;
3936 }
3937
3938 switch (statype) {
3939 case CFG80211_STA_AP_MLME_CLIENT:
3940 /* Use this only for authorizing/unauthorizing a station */
3941 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3942 return -EOPNOTSUPP;
3943 break;
3944 case CFG80211_STA_AP_CLIENT:
3945 /* accept only the listed bits */
3946 if (params->sta_flags_mask &
3947 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3948 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3949 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3950 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3951 BIT(NL80211_STA_FLAG_WME) |
3952 BIT(NL80211_STA_FLAG_MFP)))
3953 return -EINVAL;
3954
3955 /* but authenticated/associated only if driver handles it */
3956 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3957 params->sta_flags_mask &
3958 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3959 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3960 return -EINVAL;
3961 break;
3962 case CFG80211_STA_IBSS:
3963 case CFG80211_STA_AP_STA:
3964 /* reject any changes other than AUTHORIZED */
3965 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3966 return -EINVAL;
3967 break;
3968 case CFG80211_STA_TDLS_PEER_SETUP:
3969 /* reject any changes other than AUTHORIZED or WME */
3970 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3971 BIT(NL80211_STA_FLAG_WME)))
3972 return -EINVAL;
3973 /* force (at least) rates when authorizing */
3974 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3975 !params->supported_rates)
3976 return -EINVAL;
3977 break;
3978 case CFG80211_STA_TDLS_PEER_ACTIVE:
3979 /* reject any changes */
3980 return -EINVAL;
eef941e6 3981 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3982 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3983 return -EINVAL;
3984 break;
eef941e6 3985 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3986 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3987 return -EINVAL;
3988 break;
3989 }
3990
3991 return 0;
3992}
3993EXPORT_SYMBOL(cfg80211_check_station_change);
3994
5727ef1b 3995/*
c258d2de 3996 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3997 */
80b99899
JB		 3998static struct net_device *get_vlan(struct genl_info *info,
3999 struct cfg80211_registered_device *rdev)
5727ef1b 4000{
463d0183 4001 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4002 struct net_device *v;
4003 int ret;
4004
4005 if (!vlanattr)
4006 return NULL;
4007
4008 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4009 if (!v)
4010 return ERR_PTR(-ENODEV);
4011
4012 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4013 ret = -EINVAL;
4014 goto error;
5727ef1b 4015 }
80b99899 4016
77ee7c89
JB		 4017 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4018 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4019 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4020 ret = -EINVAL;
4021 goto error;
4022 }
4023
80b99899
JB		 4024 if (!netif_running(v)) {
4025 ret = -ENETDOWN;
4026 goto error;
4027 }
4028
4029 return v;
4030 error:
4031 dev_put(v);
4032 return ERR_PTR(ret);
5727ef1b
JB		 4033}
4034
94e860f1
JB		 4035static const struct nla_policy
4036nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4037 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4038 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4039};
4040
ff276691
JB		 4041static int nl80211_parse_sta_wme(struct genl_info *info,
4042 struct station_parameters *params)
df881293 4043{
df881293
JM		 4044 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4045 struct nlattr *nla;
4046 int err;
4047
df881293
JM		 4048 /* parse WME attributes if present */
4049 if (!info->attrs[NL80211_ATTR_STA_WME])
4050 return 0;
4051
4052 nla = info->attrs[NL80211_ATTR_STA_WME];
4053 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4054 nl80211_sta_wme_policy);
4055 if (err)
4056 return err;
4057
4058 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4059 params->uapsd_queues = nla_get_u8(
4060 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4061 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4062 return -EINVAL;
4063
4064 if (tb[NL80211_STA_WME_MAX_SP])
4065 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4066
4067 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4068 return -EINVAL;
4069
4070 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4071
4072 return 0;
4073}
4074
c01fc9ad
SD		 4075static int nl80211_parse_sta_channel_info(struct genl_info *info,
4076 struct station_parameters *params)
4077{
4078 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4079 params->supported_channels =
4080 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4081 params->supported_channels_len =
4082 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4083 /*
4084 * Need to include at least one (first channel, number of
4085 * channels) tuple for each subband, and must have proper
4086 * tuples for the rest of the data as well.
4087 */
4088 if (params->supported_channels_len < 2)
4089 return -EINVAL;
4090 if (params->supported_channels_len % 2)
4091 return -EINVAL;
4092 }
4093
4094 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4095 params->supported_oper_classes =
4096 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4097 params->supported_oper_classes_len =
4098 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4099 /*
4100 * The value of the Length field of the Supported Operating
4101 * Classes element is between 2 and 253.
4102 */
4103 if (params->supported_oper_classes_len < 2 ||
4104 params->supported_oper_classes_len > 253)
4105 return -EINVAL;
4106 }
4107 return 0;
4108}
4109
ff276691
JB		 4110static int nl80211_set_station_tdls(struct genl_info *info,
4111 struct station_parameters *params)
4112{
c01fc9ad 4113 int err;
ff276691 4114 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4115 if (info->attrs[NL80211_ATTR_PEER_AID])
4116 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4117 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4118 params->ht_capa =
4119 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4120 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4121 params->vht_capa =
4122 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4123
c01fc9ad
SD		 4124 err = nl80211_parse_sta_channel_info(info, params);
4125 if (err)
4126 return err;
4127
ff276691
JB		 4128 return nl80211_parse_sta_wme(info, params);
4129}
4130
5727ef1b
JB		 4131static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4132{
4c476991 4133 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4134 struct net_device *dev = info->user_ptr[1];
5727ef1b 4135 struct station_parameters params;
77ee7c89
JB		 4136 u8 *mac_addr;
4137 int err;
5727ef1b
JB		 4138
4139 memset(&params, 0, sizeof(params));
4140
4141 params.listen_interval = -1;
4142
77ee7c89
JB		 4143 if (!rdev->ops->change_station)
4144 return -EOPNOTSUPP;
4145
5727ef1b
JB		 4146 if (info->attrs[NL80211_ATTR_STA_AID])
4147 return -EINVAL;
4148
4149 if (!info->attrs[NL80211_ATTR_MAC])
4150 return -EINVAL;
4151
4152 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4153
4154 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4155 params.supported_rates =
4156 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4157 params.supported_rates_len =
4158 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4159 }
4160
9d62a986
JM		 4161 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4162 params.capability =
4163 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4164 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4165 }
4166
4167 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4168 params.ext_capab =
4169 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4170 params.ext_capab_len =
4171 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4172 }
4173
df881293 4174 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4175 return -EINVAL;
36aedc90 4176
bdd3ae3d 4177 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4178 return -EINVAL;
4179
f8bacc21 4180 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4181 params.plink_action =
f8bacc21
JB		 4182 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4183 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4184 return -EINVAL;
4185 }
2ec600d6 4186
f8bacc21 4187 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4188 params.plink_state =
f8bacc21
JB		 4189 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4190 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4191 return -EINVAL;
4192 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4193 }
9c3990aa 4194
3b1c5a53
MP		 4195 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4196 enum nl80211_mesh_power_mode pm = nla_get_u32(
4197 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4198
4199 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4200 pm > NL80211_MESH_POWER_MAX)
4201 return -EINVAL;
4202
4203 params.local_pm = pm;
4204 }
4205
77ee7c89
JB		 4206 /* Include parameters for TDLS peer (will check later) */
4207 err = nl80211_set_station_tdls(info, &params);
4208 if (err)
4209 return err;
4210
4211 params.vlan = get_vlan(info, rdev);
4212 if (IS_ERR(params.vlan))
4213 return PTR_ERR(params.vlan);
4214
a97f4424
JB		 4215 switch (dev->ieee80211_ptr->iftype) {
4216 case NL80211_IFTYPE_AP:
4217 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4218 case NL80211_IFTYPE_P2P_GO:
074ac8df 4219 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4220 case NL80211_IFTYPE_STATION:
267335d6 4221 case NL80211_IFTYPE_ADHOC:
a97f4424 4222 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4223 break;
4224 default:
77ee7c89
JB		 4225 err = -EOPNOTSUPP;
4226 goto out_put_vlan;
034d655e
JB		 4227 }
4228
77ee7c89 4229 /* driver will call cfg80211_check_station_change() */
e35e4d28 4230 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4231
77ee7c89 4232 out_put_vlan:
5727ef1b
JB		 4233 if (params.vlan)
4234 dev_put(params.vlan);
3b85875a 4235
5727ef1b
JB		 4236 return err;
4237}
4238
4239static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4240{
4c476991 4241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4242 int err;
4c476991 4243 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4244 struct station_parameters params;
4245 u8 *mac_addr = NULL;
4246
4247 memset(&params, 0, sizeof(params));
4248
984c311b
JB		 4249 if (!rdev->ops->add_station)
4250 return -EOPNOTSUPP;
4251
5727ef1b
JB		 4252 if (!info->attrs[NL80211_ATTR_MAC])
4253 return -EINVAL;
4254
5727ef1b
JB		 4255 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4256 return -EINVAL;
4257
4258 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4259 return -EINVAL;
4260
5e4b6f56
JM		 4261 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4262 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4263 return -EINVAL;
4264
5727ef1b
JB		 4265 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4266 params.supported_rates =
4267 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4268 params.supported_rates_len =
4269 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4270 params.listen_interval =
4271 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4272
3d124ea2 4273 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4274 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4275 else
4276 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4277 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4278 return -EINVAL;
51b50fbe 4279
9d62a986
JM		 4280 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4281 params.capability =
4282 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4283 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4284 }
4285
4286 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4287 params.ext_capab =
4288 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4289 params.ext_capab_len =
4290 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4291 }
4292
36aedc90
JM		 4293 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4294 params.ht_capa =
4295 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4296
f461be3e
MP		 4297 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4298 params.vht_capa =
4299 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4300
60f4a7b1
MK		 4301 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4302 params.opmode_notif_used = true;
4303 params.opmode_notif =
4304 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4305 }
4306
f8bacc21 4307 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4308 params.plink_action =
f8bacc21
JB		 4309 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4310 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4311 return -EINVAL;
4312 }
96b78dff 4313
c01fc9ad
SD		 4314 err = nl80211_parse_sta_channel_info(info, &params);
4315 if (err)
4316 return err;
4317
ff276691
JB		 4318 err = nl80211_parse_sta_wme(info, &params);
4319 if (err)
4320 return err;
bdd90d5e 4321
bdd3ae3d 4322 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4323 return -EINVAL;
4324
77ee7c89
JB		 4325 /* When you run into this, adjust the code below for the new flag */
4326 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4327
bdd90d5e
JB		 4328 switch (dev->ieee80211_ptr->iftype) {
4329 case NL80211_IFTYPE_AP:
4330 case NL80211_IFTYPE_AP_VLAN:
4331 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4332 /* ignore WME attributes if iface/sta is not capable */
4333 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4334 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4335 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4336
bdd90d5e 4337 /* TDLS peers cannot be added */
3d124ea2
JM		 4338 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4339 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4340 return -EINVAL;
bdd90d5e
JB		 4341 /* but don't bother the driver with it */
4342 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4343
d582cffb
JB		 4344 /* allow authenticated/associated only if driver handles it */
4345 if (!(rdev->wiphy.features &
4346 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4347 params.sta_flags_mask &
4348 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4349 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4350 return -EINVAL;
4351
bdd90d5e
JB		 4352 /* must be last in here for error handling */
4353 params.vlan = get_vlan(info, rdev);
4354 if (IS_ERR(params.vlan))
4355 return PTR_ERR(params.vlan);
4356 break;
4357 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4358 /* ignore uAPSD data */
4359 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4360
d582cffb
JB		 4361 /* associated is disallowed */
4362 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4363 return -EINVAL;
bdd90d5e 4364 /* TDLS peers cannot be added */
3d124ea2
JM		 4365 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4366 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4367 return -EINVAL;
4368 break;
4369 case NL80211_IFTYPE_STATION:
93d08f0b 4370 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4371 /* ignore uAPSD data */
4372 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4373
77ee7c89
JB		 4374 /* these are disallowed */
4375 if (params.sta_flags_mask &
4376 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4377 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4378 return -EINVAL;
bdd90d5e
JB		 4379 /* Only TDLS peers can be added */
4380 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4381 return -EINVAL;
4382 /* Can only add if TDLS ... */
4383 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4384 return -EOPNOTSUPP;
4385 /* ... with external setup is supported */
4386 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4387 return -EOPNOTSUPP;
77ee7c89
JB		 4388 /*
4389 * Older wpa_supplicant versions always mark the TDLS peer
4390 * as authorized, but it shouldn't yet be.
4391 */
4392 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4393 break;
4394 default:
4395 return -EOPNOTSUPP;
c75786c9
EP		 4396 }
4397
bdd90d5e 4398 /* be aware of params.vlan when changing code here */
5727ef1b 4399
e35e4d28 4400 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4401
5727ef1b
JB		 4402 if (params.vlan)
4403 dev_put(params.vlan);
5727ef1b
JB		 4404 return err;
4405}
4406
4407static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4408{
4c476991
JB		 4409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4410 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4411 struct station_del_parameters params;
4412
4413 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4414
4415 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4416 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4417
e80cf853 4418 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4419 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4420 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4421 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4422 return -EINVAL;
5727ef1b 4423
4c476991
JB		 4424 if (!rdev->ops->del_station)
4425 return -EOPNOTSUPP;
3b85875a 4426
98856866
JM		 4427 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4428 params.subtype =
4429 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4430 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4431 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4432 return -EINVAL;
4433 } else {
4434 /* Default to Deauthentication frame */
4435 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4436 }
4437
4438 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4439 params.reason_code =
4440 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4441 if (params.reason_code == 0)
4442 return -EINVAL; /* 0 is reserved */
4443 } else {
4444 /* Default to reason code 2 */
4445 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4446 }
4447
89c771e5 4448 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4449}
4450
15e47304 4451static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4452 int flags, struct net_device *dev,
4453 u8 *dst, u8 *next_hop,
4454 struct mpath_info *pinfo)
4455{
4456 void *hdr;
4457 struct nlattr *pinfoattr;
4458
1ef4c850 4459 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4460 if (!hdr)
4461 return -1;
4462
9360ffd1
DM		 4463 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4464 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4465 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4466 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4467 goto nla_put_failure;
f5ea9120 4468
2ec600d6
LCC		 4469 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4470 if (!pinfoattr)
4471 goto nla_put_failure;
9360ffd1
DM		 4472 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4473 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4474 pinfo->frame_qlen))
4475 goto nla_put_failure;
4476 if (((pinfo->filled & MPATH_INFO_SN) &&
4477 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4478 ((pinfo->filled & MPATH_INFO_METRIC) &&
4479 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4480 pinfo->metric)) ||
4481 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4482 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4483 pinfo->exptime)) ||
4484 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4485 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4486 pinfo->flags)) ||
4487 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4488 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4489 pinfo->discovery_timeout)) ||
4490 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4491 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4492 pinfo->discovery_retries)))
4493 goto nla_put_failure;
2ec600d6
LCC		 4494
4495 nla_nest_end(msg, pinfoattr);
4496
4497 return genlmsg_end(msg, hdr);
4498
4499 nla_put_failure:
bc3ed28c
TG		 4500 genlmsg_cancel(msg, hdr);
4501 return -EMSGSIZE;
2ec600d6
LCC		 4502}
4503
4504static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4505 struct netlink_callback *cb)
2ec600d6 4506{
2ec600d6 4507 struct mpath_info pinfo;
1b8ec87a 4508 struct cfg80211_registered_device *rdev;
97990a06 4509 struct wireless_dev *wdev;
2ec600d6
LCC		 4510 u8 dst[ETH_ALEN];
4511 u8 next_hop[ETH_ALEN];
97990a06 4512 int path_idx = cb->args[2];
2ec600d6 4513 int err;
2ec600d6 4514
1b8ec87a 4515 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4516 if (err)
4517 return err;
bba95fef 4518
1b8ec87a 4519 if (!rdev->ops->dump_mpath) {
eec60b03 4520 err = -EOPNOTSUPP;
bba95fef
JB		 4521 goto out_err;
4522 }
4523
97990a06 4524 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4525 err = -EOPNOTSUPP;
0448b5fc 4526 goto out_err;
eec60b03
JM		 4527 }
4528
bba95fef 4529 while (1) {
1b8ec87a 4530 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4531 next_hop, &pinfo);
bba95fef 4532 if (err == -ENOENT)
2ec600d6 4533 break;
bba95fef 4534 if (err)
3b85875a 4535 goto out_err;
2ec600d6 4536
15e47304 4537 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4538 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4539 wdev->netdev, dst, next_hop,
bba95fef
JB		 4540 &pinfo) < 0)
4541 goto out;
2ec600d6 4542
bba95fef 4543 path_idx++;
2ec600d6 4544 }
2ec600d6 4545
2ec600d6 4546
bba95fef 4547 out:
97990a06 4548 cb->args[2] = path_idx;
bba95fef 4549 err = skb->len;
bba95fef 4550 out_err:
1b8ec87a 4551 nl80211_finish_wdev_dump(rdev);
bba95fef 4552 return err;
2ec600d6
LCC		 4553}
4554
4555static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4556{
4c476991 4557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4558 int err;
4c476991 4559 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4560 struct mpath_info pinfo;
4561 struct sk_buff *msg;
4562 u8 *dst = NULL;
4563 u8 next_hop[ETH_ALEN];
4564
4565 memset(&pinfo, 0, sizeof(pinfo));
4566
4567 if (!info->attrs[NL80211_ATTR_MAC])
4568 return -EINVAL;
4569
4570 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4571
4c476991
JB		 4572 if (!rdev->ops->get_mpath)
4573 return -EOPNOTSUPP;
2ec600d6 4574
4c476991
JB		 4575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4576 return -EOPNOTSUPP;
eec60b03 4577
e35e4d28 4578 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4579 if (err)
4c476991 4580 return err;
2ec600d6 4581
fd2120ca 4582 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4583 if (!msg)
4c476991 4584 return -ENOMEM;
2ec600d6 4585
15e47304 4586 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4587 dev, dst, next_hop, &pinfo) < 0) {
4588 nlmsg_free(msg);
4589 return -ENOBUFS;
4590 }
3b85875a 4591
4c476991 4592 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4593}
4594
4595static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4596{
4c476991
JB		 4597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4598 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4599 u8 *dst = NULL;
4600 u8 *next_hop = NULL;
4601
4602 if (!info->attrs[NL80211_ATTR_MAC])
4603 return -EINVAL;
4604
4605 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4606 return -EINVAL;
4607
4608 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4609 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4610
4c476991
JB		 4611 if (!rdev->ops->change_mpath)
4612 return -EOPNOTSUPP;
35a8efe1 4613
4c476991
JB		 4614 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4615 return -EOPNOTSUPP;
2ec600d6 4616
e35e4d28 4617 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4618}
4c476991 4619
2ec600d6
LCC		 4620static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4621{
4c476991
JB		 4622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4623 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4624 u8 *dst = NULL;
4625 u8 *next_hop = NULL;
4626
4627 if (!info->attrs[NL80211_ATTR_MAC])
4628 return -EINVAL;
4629
4630 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4631 return -EINVAL;
4632
4633 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4634 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4635
4c476991
JB		 4636 if (!rdev->ops->add_mpath)
4637 return -EOPNOTSUPP;
35a8efe1 4638
4c476991
JB		 4639 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4640 return -EOPNOTSUPP;
2ec600d6 4641
e35e4d28 4642 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4643}
4644
4645static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4646{
4c476991
JB		 4647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4648 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4649 u8 *dst = NULL;
4650
4651 if (info->attrs[NL80211_ATTR_MAC])
4652 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4653
4c476991
JB		 4654 if (!rdev->ops->del_mpath)
4655 return -EOPNOTSUPP;
3b85875a 4656
e35e4d28 4657 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4658}
4659
66be7d2b
HR		 4660static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4661{
4662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4663 int err;
4664 struct net_device *dev = info->user_ptr[1];
4665 struct mpath_info pinfo;
4666 struct sk_buff *msg;
4667 u8 *dst = NULL;
4668 u8 mpp[ETH_ALEN];
4669
4670 memset(&pinfo, 0, sizeof(pinfo));
4671
4672 if (!info->attrs[NL80211_ATTR_MAC])
4673 return -EINVAL;
4674
4675 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4676
4677 if (!rdev->ops->get_mpp)
4678 return -EOPNOTSUPP;
4679
4680 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4681 return -EOPNOTSUPP;
4682
4683 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4684 if (err)
4685 return err;
4686
4687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4688 if (!msg)
4689 return -ENOMEM;
4690
4691 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4692 dev, dst, mpp, &pinfo) < 0) {
4693 nlmsg_free(msg);
4694 return -ENOBUFS;
4695 }
4696
4697 return genlmsg_reply(msg, info);
4698}
4699
4700static int nl80211_dump_mpp(struct sk_buff *skb,
4701 struct netlink_callback *cb)
4702{
4703 struct mpath_info pinfo;
4704 struct cfg80211_registered_device *rdev;
4705 struct wireless_dev *wdev;
4706 u8 dst[ETH_ALEN];
4707 u8 mpp[ETH_ALEN];
4708 int path_idx = cb->args[2];
4709 int err;
4710
4711 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4712 if (err)
4713 return err;
4714
4715 if (!rdev->ops->dump_mpp) {
4716 err = -EOPNOTSUPP;
4717 goto out_err;
4718 }
4719
4720 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4721 err = -EOPNOTSUPP;
4722 goto out_err;
4723 }
4724
4725 while (1) {
4726 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4727 mpp, &pinfo);
4728 if (err == -ENOENT)
4729 break;
4730 if (err)
4731 goto out_err;
4732
4733 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4734 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4735 wdev->netdev, dst, mpp,
4736 &pinfo) < 0)
4737 goto out;
4738
4739 path_idx++;
4740 }
4741
4742 out:
4743 cb->args[2] = path_idx;
4744 err = skb->len;
4745 out_err:
4746 nl80211_finish_wdev_dump(rdev);
4747 return err;
4748}
4749
9f1ba906
JM		 4750static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4751{
4c476991
JB		 4752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4753 struct net_device *dev = info->user_ptr[1];
c56589ed 4754 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4755 struct bss_parameters params;
c56589ed 4756 int err;
9f1ba906
JM		 4757
4758 memset(&params, 0, sizeof(params));
4759 /* default to not changing parameters */
4760 params.use_cts_prot = -1;
4761 params.use_short_preamble = -1;
4762 params.use_short_slot_time = -1;
fd8aaaf3 4763 params.ap_isolate = -1;
50b12f59 4764 params.ht_opmode = -1;
53cabad7
JB		 4765 params.p2p_ctwindow = -1;
4766 params.p2p_opp_ps = -1;
9f1ba906
JM		 4767
4768 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4769 params.use_cts_prot =
4770 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4771 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4772 params.use_short_preamble =
4773 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4774 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4775 params.use_short_slot_time =
4776 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4777 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4778 params.basic_rates =
4779 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4780 params.basic_rates_len =
4781 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4782 }
fd8aaaf3
FF		 4783 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4784 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4785 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4786 params.ht_opmode =
4787 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4788
53cabad7
JB		 4789 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4790 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4791 return -EINVAL;
4792 params.p2p_ctwindow =
4793 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4794 if (params.p2p_ctwindow < 0)
4795 return -EINVAL;
4796 if (params.p2p_ctwindow != 0 &&
4797 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4798 return -EINVAL;
4799 }
4800
4801 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4802 u8 tmp;
4803
4804 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4805 return -EINVAL;
4806 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4807 if (tmp > 1)
4808 return -EINVAL;
4809 params.p2p_opp_ps = tmp;
4810 if (params.p2p_opp_ps &&
4811 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4812 return -EINVAL;
4813 }
4814
4c476991
JB		 4815 if (!rdev->ops->change_bss)
4816 return -EOPNOTSUPP;
9f1ba906 4817
074ac8df 4818 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4819 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4820 return -EOPNOTSUPP;
3b85875a 4821
c56589ed
SW		 4822 wdev_lock(wdev);
4823 err = rdev_change_bss(rdev, dev, &params);
4824 wdev_unlock(wdev);
4825
4826 return err;
9f1ba906
JM		 4827}
4828
b54452b0 4829static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4830 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4831 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4832 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4833 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4834 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4835 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4836 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4837};
4838
4839static int parse_reg_rule(struct nlattr *tb[],
4840 struct ieee80211_reg_rule *reg_rule)
4841{
4842 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4843 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4844
4845 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4846 return -EINVAL;
4847 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4848 return -EINVAL;
4849 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4850 return -EINVAL;
b0dfd2ea
JD		 4851 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4852 return -EINVAL;
b2e1b302
LR		 4853 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4854 return -EINVAL;
4855
4856 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4857
4858 freq_range->start_freq_khz =
4859 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4860 freq_range->end_freq_khz =
4861 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4862 freq_range->max_bandwidth_khz =
4863 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4864
4865 power_rule->max_eirp =
4866 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4867
4868 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4869 power_rule->max_antenna_gain =
4870 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4871
089027e5
JD		 4872 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4873 reg_rule->dfs_cac_ms =
4874 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4875
b2e1b302
LR		 4876 return 0;
4877}
4878
4879static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4880{
b2e1b302 4881 char *data = NULL;
57b5ce07 4882 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4883
80778f18
LR		 4884 /*
4885 * You should only get this when cfg80211 hasn't yet initialized
4886 * completely when built-in to the kernel right between the time
4887 * window between nl80211_init() and regulatory_init(), if that is
4888 * even possible.
4889 */
458f4f9e 4890 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4891 return -EINPROGRESS;
80778f18 4892
57b5ce07
LR		 4893 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4894 user_reg_hint_type =
4895 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4896 else
4897 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4898
4899 switch (user_reg_hint_type) {
4900 case NL80211_USER_REG_HINT_USER:
4901 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4902 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4903 return -EINVAL;
4904
4905 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4906 return regulatory_hint_user(data, user_reg_hint_type);
4907 case NL80211_USER_REG_HINT_INDOOR:
4908 return regulatory_hint_indoor_user();
57b5ce07
LR		 4909 default:
4910 return -EINVAL;
4911 }
b2e1b302
LR		 4912}
4913
24bdd9f4 4914static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4915 struct genl_info *info)
93da9cc1 4916{
4c476991 4917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4918 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4919 struct wireless_dev *wdev = dev->ieee80211_ptr;
4920 struct mesh_config cur_params;
4921 int err = 0;
93da9cc1 4922 void *hdr;
4923 struct nlattr *pinfoattr;
4924 struct sk_buff *msg;
4925
29cbe68c
JB		 4926 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4927 return -EOPNOTSUPP;
4928
24bdd9f4 4929 if (!rdev->ops->get_mesh_config)
4c476991 4930 return -EOPNOTSUPP;
f3f92586 4931
29cbe68c
JB		 4932 wdev_lock(wdev);
4933 /* If not connected, get default parameters */
4934 if (!wdev->mesh_id_len)
4935 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4936 else
e35e4d28 4937 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4938 wdev_unlock(wdev);
4939
93da9cc1 4940 if (err)
4c476991 4941 return err;
93da9cc1 4942
4943 /* Draw up a netlink message to send back */
fd2120ca 4944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4945 if (!msg)
4946 return -ENOMEM;
15e47304 4947 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4948 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4949 if (!hdr)
efe1cf0c 4950 goto out;
24bdd9f4 4951 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4952 if (!pinfoattr)
4953 goto nla_put_failure;
9360ffd1
DM		 4954 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4955 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4956 cur_params.dot11MeshRetryTimeout) ||
4957 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4958 cur_params.dot11MeshConfirmTimeout) ||
4959 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4960 cur_params.dot11MeshHoldingTimeout) ||
4961 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4962 cur_params.dot11MeshMaxPeerLinks) ||
4963 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4964 cur_params.dot11MeshMaxRetries) ||
4965 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4966 cur_params.dot11MeshTTL) ||
4967 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4968 cur_params.element_ttl) ||
4969 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4970 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4971 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4972 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4973 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4974 cur_params.dot11MeshHWMPmaxPREQretries) ||
4975 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4976 cur_params.path_refresh_time) ||
4977 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4978 cur_params.min_discovery_timeout) ||
4979 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4980 cur_params.dot11MeshHWMPactivePathTimeout) ||
4981 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4982 cur_params.dot11MeshHWMPpreqMinInterval) ||
4983 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4984 cur_params.dot11MeshHWMPperrMinInterval) ||
4985 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4986 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4987 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4988 cur_params.dot11MeshHWMPRootMode) ||
4989 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4990 cur_params.dot11MeshHWMPRannInterval) ||
4991 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4992 cur_params.dot11MeshGateAnnouncementProtocol) ||
4993 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4994 cur_params.dot11MeshForwarding) ||
4995 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4996 cur_params.rssi_threshold) ||
4997 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4998 cur_params.ht_opmode) ||
4999 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5000 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5001 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5002 cur_params.dot11MeshHWMProotInterval) ||
5003 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5004 cur_params.dot11MeshHWMPconfirmationInterval) ||
5005 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5006 cur_params.power_mode) ||
5007 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5008 cur_params.dot11MeshAwakeWindowDuration) ||
5009 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5010 cur_params.plink_timeout))
9360ffd1 5011 goto nla_put_failure;
93da9cc1 5012 nla_nest_end(msg, pinfoattr);
5013 genlmsg_end(msg, hdr);
4c476991 5014 return genlmsg_reply(msg, info);
93da9cc1 5015
3b85875a 5016 nla_put_failure:
93da9cc1 5017 genlmsg_cancel(msg, hdr);
efe1cf0c 5018 out:
d080e275 5019 nlmsg_free(msg);
4c476991 5020 return -ENOBUFS;
93da9cc1 5021}
5022
b54452b0 5023static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5024 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5025 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5026 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5027 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5028 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5029 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5030 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5031 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5032 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5033 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5034 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5035 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5036 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5037 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5038 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5039 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5040 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5041 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5042 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5043 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5044 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5045 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5046 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5047 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5048 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5049 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5050 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5051 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5052};
5053
c80d545d
JC		 5054static const struct nla_policy
5055 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5056 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5057 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5058 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5059 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5060 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5061 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5062 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5063 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5064 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5065};
5066
24bdd9f4 5067static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5068 struct mesh_config *cfg,
5069 u32 *mask_out)
93da9cc1 5070{
93da9cc1 5071 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5072 u32 mask = 0;
93da9cc1 5073
ea54fba2
MP		 5074#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5075do { \
5076 if (tb[attr]) { \
5077 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5078 return -EINVAL; \
5079 cfg->param = fn(tb[attr]); \
5080 mask |= (1 << (attr - 1)); \
5081 } \
5082} while (0)
bd90fdcc
JB		 5083
5084
24bdd9f4 5085 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5086 return -EINVAL;
5087 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5088 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5089 nl80211_meshconf_params_policy))
93da9cc1 5090 return -EINVAL;
5091
93da9cc1 5092 /* This makes sure that there aren't more than 32 mesh config
5093 * parameters (otherwise our bitfield scheme would not work.) */
5094 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5095
5096 /* Fill in the params struct */
ea54fba2 5097 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5098 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5099 nla_get_u16);
ea54fba2 5100 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5101 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5102 nla_get_u16);
ea54fba2 5103 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5104 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5105 nla_get_u16);
ea54fba2 5106 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5107 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5108 nla_get_u16);
ea54fba2 5109 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5110 mask, NL80211_MESHCONF_MAX_RETRIES,
5111 nla_get_u8);
ea54fba2 5112 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5113 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5114 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5115 mask, NL80211_MESHCONF_ELEMENT_TTL,
5116 nla_get_u8);
ea54fba2 5117 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5118 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5119 nla_get_u8);
ea54fba2
MP		 5120 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5121 1, 255, mask,
a4f606ea
CYY		 5122 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5123 nla_get_u32);
ea54fba2 5124 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5125 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5126 nla_get_u8);
ea54fba2 5127 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5128 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5129 nla_get_u32);
ea54fba2 5130 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5131 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5132 nla_get_u16);
ea54fba2
MP		 5133 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5134 1, 65535, mask,
a4f606ea
CYY		 5135 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5136 nla_get_u32);
93da9cc1 5137 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5138 1, 65535, mask,
5139 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5140 nla_get_u16);
dca7e943 5141 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5142 1, 65535, mask,
5143 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5144 nla_get_u16);
93da9cc1 5145 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5146 dot11MeshHWMPnetDiameterTraversalTime,
5147 1, 65535, mask,
a4f606ea
CYY		 5148 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5149 nla_get_u16);
ea54fba2
MP		 5150 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5151 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5152 nla_get_u8);
5153 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5154 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5155 nla_get_u16);
63c5723b 5156 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5157 dot11MeshGateAnnouncementProtocol, 0, 1,
5158 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5159 nla_get_u8);
ea54fba2 5160 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5161 mask, NL80211_MESHCONF_FORWARDING,
5162 nla_get_u8);
83374fe9 5163 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5164 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5165 nla_get_s32);
ea54fba2 5166 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5167 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5168 nla_get_u16);
5169 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5170 1, 65535, mask,
ac1073a6
CYY		 5171 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5172 nla_get_u32);
ea54fba2 5173 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5174 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5175 nla_get_u16);
5176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5177 dot11MeshHWMPconfirmationInterval,
5178 1, 65535, mask,
728b19e5 5179 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5180 nla_get_u16);
3b1c5a53
MP		 5181 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5182 NL80211_MESH_POWER_ACTIVE,
5183 NL80211_MESH_POWER_MAX,
5184 mask, NL80211_MESHCONF_POWER_MODE,
5185 nla_get_u32);
5186 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5187 0, 65535, mask,
5188 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5189 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5190 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5191 nla_get_u32);
bd90fdcc
JB		 5192 if (mask_out)
5193 *mask_out = mask;
c80d545d 5194
bd90fdcc
JB		 5195 return 0;
5196
5197#undef FILL_IN_MESH_PARAM_IF_SET
5198}
5199
c80d545d
JC		 5200static int nl80211_parse_mesh_setup(struct genl_info *info,
5201 struct mesh_setup *setup)
5202{
bb2798d4 5203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5204 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5205
5206 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5207 return -EINVAL;
5208 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5209 info->attrs[NL80211_ATTR_MESH_SETUP],
5210 nl80211_mesh_setup_params_policy))
5211 return -EINVAL;
5212
d299a1f2
JC		 5213 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5214 setup->sync_method =
5215 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5216 IEEE80211_SYNC_METHOD_VENDOR :
5217 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5218
c80d545d
JC		 5219 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5220 setup->path_sel_proto =
5221 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5222 IEEE80211_PATH_PROTOCOL_VENDOR :
5223 IEEE80211_PATH_PROTOCOL_HWMP;
5224
5225 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5226 setup->path_metric =
5227 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5228 IEEE80211_PATH_METRIC_VENDOR :
5229 IEEE80211_PATH_METRIC_AIRTIME;
5230
581a8b0f
JC		 5231
5232 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5233 struct nlattr *ieattr =
581a8b0f 5234 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5235 if (!is_valid_ie_attr(ieattr))
5236 return -EINVAL;
581a8b0f
JC		 5237 setup->ie = nla_data(ieattr);
5238 setup->ie_len = nla_len(ieattr);
c80d545d 5239 }
bb2798d4
TP		 5240 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5241 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5242 return -EINVAL;
5243 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5244 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5245 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5246 if (setup->is_secure)
5247 setup->user_mpm = true;
c80d545d 5248
6e16d90b
CT		 5249 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5250 if (!setup->user_mpm)
5251 return -EINVAL;
5252 setup->auth_id =
5253 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5254 }
5255
c80d545d
JC		 5256 return 0;
5257}
5258
24bdd9f4 5259static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5260 struct genl_info *info)
bd90fdcc
JB		 5261{
5262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5263 struct net_device *dev = info->user_ptr[1];
29cbe68c 5264 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5265 struct mesh_config cfg;
5266 u32 mask;
5267 int err;
5268
29cbe68c
JB		 5269 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5270 return -EOPNOTSUPP;
5271
24bdd9f4 5272 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5273 return -EOPNOTSUPP;
5274
24bdd9f4 5275 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5276 if (err)
5277 return err;
5278
29cbe68c
JB		 5279 wdev_lock(wdev);
5280 if (!wdev->mesh_id_len)
5281 err = -ENOLINK;
5282
5283 if (!err)
e35e4d28 5284 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5285
5286 wdev_unlock(wdev);
5287
5288 return err;
93da9cc1 5289}
5290
f130347c
LR		 5291static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5292{
458f4f9e 5293 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5294 struct sk_buff *msg;
5295 void *hdr = NULL;
5296 struct nlattr *nl_reg_rules;
5297 unsigned int i;
f130347c
LR		 5298
5299 if (!cfg80211_regdomain)
5fe231e8 5300 return -EINVAL;
f130347c 5301
fd2120ca 5302 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5303 if (!msg)
5304 return -ENOBUFS;
f130347c 5305
15e47304 5306 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5307 NL80211_CMD_GET_REG);
5308 if (!hdr)
efe1cf0c 5309 goto put_failure;
f130347c 5310
57b5ce07
LR		 5311 if (reg_last_request_cell_base() &&
5312 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5313 NL80211_USER_REG_HINT_CELL_BASE))
5314 goto nla_put_failure;
5315
458f4f9e
JB		 5316 rcu_read_lock();
5317 regdom = rcu_dereference(cfg80211_regdomain);
5318
5319 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5320 (regdom->dfs_region &&
5321 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5322 goto nla_put_failure_rcu;
5323
f130347c
LR		 5324 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5325 if (!nl_reg_rules)
458f4f9e 5326 goto nla_put_failure_rcu;
f130347c 5327
458f4f9e 5328 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5329 struct nlattr *nl_reg_rule;
5330 const struct ieee80211_reg_rule *reg_rule;
5331 const struct ieee80211_freq_range *freq_range;
5332 const struct ieee80211_power_rule *power_rule;
97524820 5333 unsigned int max_bandwidth_khz;
f130347c 5334
458f4f9e 5335 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5336 freq_range = &reg_rule->freq_range;
5337 power_rule = &reg_rule->power_rule;
5338
5339 nl_reg_rule = nla_nest_start(msg, i);
5340 if (!nl_reg_rule)
458f4f9e 5341 goto nla_put_failure_rcu;
f130347c 5342
97524820
JD		 5343 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5344 if (!max_bandwidth_khz)
5345 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5346 reg_rule);
5347
9360ffd1
DM		 5348 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5349 reg_rule->flags) ||
5350 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5351 freq_range->start_freq_khz) ||
5352 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5353 freq_range->end_freq_khz) ||
5354 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5355 max_bandwidth_khz) ||
9360ffd1
DM		 5356 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5357 power_rule->max_antenna_gain) ||
5358 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5359 power_rule->max_eirp) ||
5360 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5361 reg_rule->dfs_cac_ms))
458f4f9e 5362 goto nla_put_failure_rcu;
f130347c
LR		 5363
5364 nla_nest_end(msg, nl_reg_rule);
5365 }
458f4f9e 5366 rcu_read_unlock();
f130347c
LR		 5367
5368 nla_nest_end(msg, nl_reg_rules);
5369
5370 genlmsg_end(msg, hdr);
5fe231e8 5371 return genlmsg_reply(msg, info);
f130347c 5372
458f4f9e
JB		 5373nla_put_failure_rcu:
5374 rcu_read_unlock();
f130347c
LR		 5375nla_put_failure:
5376 genlmsg_cancel(msg, hdr);
efe1cf0c 5377put_failure:
d080e275 5378 nlmsg_free(msg);
5fe231e8 5379 return -EMSGSIZE;
f130347c
LR		 5380}
5381
b2e1b302
LR		 5382static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5383{
5384 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5385 struct nlattr *nl_reg_rule;
5386 char *alpha2 = NULL;
5387 int rem_reg_rules = 0, r = 0;
5388 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5389 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5390 struct ieee80211_regdomain *rd = NULL;
5391
5392 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5393 return -EINVAL;
5394
5395 if (!info->attrs[NL80211_ATTR_REG_RULES])
5396 return -EINVAL;
5397
5398 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5399
8b60b078
LR		 5400 if (info->attrs[NL80211_ATTR_DFS_REGION])
5401 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5402
b2e1b302 5403 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5404 rem_reg_rules) {
b2e1b302
LR		 5405 num_rules++;
5406 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5407 return -EINVAL;
b2e1b302
LR		 5408 }
5409
e438768f
LR		 5410 if (!reg_is_valid_request(alpha2))
5411 return -EINVAL;
5412
b2e1b302 5413 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5414 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5415
5416 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5417 if (!rd)
5418 return -ENOMEM;
b2e1b302
LR		 5419
5420 rd->n_reg_rules = num_rules;
5421 rd->alpha2[0] = alpha2[0];
5422 rd->alpha2[1] = alpha2[1];
5423
8b60b078
LR		 5424 /*
5425 * Disable DFS master mode if the DFS region was
5426 * not supported or known on this kernel.
5427 */
5428 if (reg_supported_dfs_region(dfs_region))
5429 rd->dfs_region = dfs_region;
5430
b2e1b302 5431 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5432 rem_reg_rules) {
ae811e21
JB		 5433 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5434 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5435 reg_rule_policy);
5436 if (r)
5437 goto bad_reg;
b2e1b302
LR		 5438 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5439 if (r)
5440 goto bad_reg;
5441
5442 rule_idx++;
5443
d0e18f83
LR		 5444 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5445 r = -EINVAL;
b2e1b302 5446 goto bad_reg;
d0e18f83 5447 }
b2e1b302
LR		 5448 }
5449
b2e1b302 5450 r = set_regdom(rd);
6913b49a 5451 /* set_regdom took ownership */
1a919318 5452 rd = NULL;
b2e1b302 5453
d2372b31 5454 bad_reg:
b2e1b302 5455 kfree(rd);
d0e18f83 5456 return r;
b2e1b302
LR		 5457}
5458
83f5e2cf
JB		 5459static int validate_scan_freqs(struct nlattr *freqs)
5460{
5461 struct nlattr *attr1, *attr2;
5462 int n_channels = 0, tmp1, tmp2;
5463
5464 nla_for_each_nested(attr1, freqs, tmp1) {
5465 n_channels++;
5466 /*
5467 * Some hardware has a limited channel list for
5468 * scanning, and it is pretty much nonsensical
5469 * to scan for a channel twice, so disallow that
5470 * and don't require drivers to check that the
5471 * channel list they get isn't longer than what
5472 * they can scan, as long as they can scan all
5473 * the channels they registered at once.
5474 */
5475 nla_for_each_nested(attr2, freqs, tmp2)
5476 if (attr1 != attr2 &&
5477 nla_get_u32(attr1) == nla_get_u32(attr2))
5478 return 0;
5479 }
5480
5481 return n_channels;
5482}
5483
2a519311
JB		 5484static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5485{
4c476991 5486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5487 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5488 struct cfg80211_scan_request *request;
2a519311
JB		 5489 struct nlattr *attr;
5490 struct wiphy *wiphy;
83f5e2cf 5491 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5492 size_t ie_len;
2a519311 5493
f4a11bb0
JB		 5494 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5495 return -EINVAL;
5496
79c97e97 5497 wiphy = &rdev->wiphy;
2a519311 5498
4c476991
JB		 5499 if (!rdev->ops->scan)
5500 return -EOPNOTSUPP;
2a519311 5501
f9d15d16 5502 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5503 err = -EBUSY;
5504 goto unlock;
5505 }
2a519311
JB		 5506
5507 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5508 n_channels = validate_scan_freqs(
5509 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5510 if (!n_channels) {
5511 err = -EINVAL;
5512 goto unlock;
5513 }
2a519311 5514 } else {
bdfbec2d 5515 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5516 }
5517
5518 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5519 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5520 n_ssids++;
5521
f9f47529
JB		 5522 if (n_ssids > wiphy->max_scan_ssids) {
5523 err = -EINVAL;
5524 goto unlock;
5525 }
2a519311 5526
70692ad2
JM		 5527 if (info->attrs[NL80211_ATTR_IE])
5528 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5529 else
5530 ie_len = 0;
5531
f9f47529
JB		 5532 if (ie_len > wiphy->max_scan_ie_len) {
5533 err = -EINVAL;
5534 goto unlock;
5535 }
18a83659 5536
2a519311 5537 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5538 + sizeof(*request->ssids) * n_ssids
5539 + sizeof(*request->channels) * n_channels
70692ad2 5540 + ie_len, GFP_KERNEL);
f9f47529
JB		 5541 if (!request) {
5542 err = -ENOMEM;
5543 goto unlock;
5544 }
2a519311 5545
2a519311 5546 if (n_ssids)
5ba63533 5547 request->ssids = (void *)&request->channels[n_channels];
2a519311 5548 request->n_ssids = n_ssids;
70692ad2
JM		 5549 if (ie_len) {
5550 if (request->ssids)
5551 request->ie = (void *)(request->ssids + n_ssids);
5552 else
5553 request->ie = (void *)(request->channels + n_channels);
5554 }
2a519311 5555
584991dc 5556 i = 0;
2a519311
JB		 5557 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5558 /* user specified, bail out if channel not found */
2a519311 5559 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5560 struct ieee80211_channel *chan;
5561
5562 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5563
5564 if (!chan) {
2a519311
JB		 5565 err = -EINVAL;
5566 goto out_free;
5567 }
584991dc
JB		 5568
5569 /* ignore disabled channels */
5570 if (chan->flags & IEEE80211_CHAN_DISABLED)
5571 continue;
5572
5573 request->channels[i] = chan;
2a519311
JB		 5574 i++;
5575 }
5576 } else {
34850ab2
JB		 5577 enum ieee80211_band band;
5578
2a519311 5579 /* all channels */
2a519311
JB		 5580 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5581 int j;
5582 if (!wiphy->bands[band])
5583 continue;
5584 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5585 struct ieee80211_channel *chan;
5586
5587 chan = &wiphy->bands[band]->channels[j];
5588
5589 if (chan->flags & IEEE80211_CHAN_DISABLED)
5590 continue;
5591
5592 request->channels[i] = chan;
2a519311
JB		 5593 i++;
5594 }
5595 }
5596 }
5597
584991dc
JB		 5598 if (!i) {
5599 err = -EINVAL;
5600 goto out_free;
5601 }
5602
5603 request->n_channels = i;
5604
2a519311
JB		 5605 i = 0;
5606 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5607 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5608 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5609 err = -EINVAL;
5610 goto out_free;
5611 }
57a27e1d 5612 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5613 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5614 i++;
5615 }
5616 }
5617
70692ad2
JM		 5618 if (info->attrs[NL80211_ATTR_IE]) {
5619 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5620 memcpy((void *)request->ie,
5621 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5622 request->ie_len);
5623 }
5624
34850ab2 5625 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5626 if (wiphy->bands[i])
5627 request->rates[i] =
5628 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5629
5630 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5631 nla_for_each_nested(attr,
5632 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5633 tmp) {
5634 enum ieee80211_band band = nla_type(attr);
5635
84404623 5636 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5637 err = -EINVAL;
5638 goto out_free;
5639 }
1b09cd82
FF		 5640
5641 if (!wiphy->bands[band])
5642 continue;
5643
34850ab2
JB		 5644 err = ieee80211_get_ratemask(wiphy->bands[band],
5645 nla_data(attr),
5646 nla_len(attr),
5647 &request->rates[band]);
5648 if (err)
5649 goto out_free;
5650 }
5651 }
5652
46856bbf 5653 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5654 request->flags = nla_get_u32(
5655 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5656 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5657 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5658 err = -EOPNOTSUPP;
5659 goto out_free;
5660 }
5661 }
ed473771 5662
e9f935e3
RM		 5663 request->no_cck =
5664 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5665
fd014284 5666 request->wdev = wdev;
79c97e97 5667 request->wiphy = &rdev->wiphy;
15d6030b 5668 request->scan_start = jiffies;
2a519311 5669
79c97e97 5670 rdev->scan_req = request;
e35e4d28 5671 err = rdev_scan(rdev, request);
2a519311 5672
463d0183 5673 if (!err) {
fd014284
JB		 5674 nl80211_send_scan_start(rdev, wdev);
5675 if (wdev->netdev)
5676 dev_hold(wdev->netdev);
4c476991 5677 } else {
2a519311 5678 out_free:
79c97e97 5679 rdev->scan_req = NULL;
2a519311
JB		 5680 kfree(request);
5681 }
3b85875a 5682
f9f47529 5683 unlock:
2a519311
JB		 5684 return err;
5685}
5686
256da02d
LC		 5687static struct cfg80211_sched_scan_request *
5688nl80211_parse_sched_scan(struct wiphy *wiphy,
5689 struct nlattr **attrs)
807f8a8c
LC		 5690{
5691 struct cfg80211_sched_scan_request *request;
807f8a8c 5692 struct nlattr *attr;
a1f1c21c 5693 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5694 u32 interval;
807f8a8c
LC		 5695 enum ieee80211_band band;
5696 size_t ie_len;
a1f1c21c 5697 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5698 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5699
256da02d
LC		 5700 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5701 return ERR_PTR(-EINVAL);
807f8a8c 5702
256da02d
LC		 5703 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5704 return ERR_PTR(-EINVAL);
bbe6ad6d 5705
256da02d 5706 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5707 if (interval == 0)
256da02d 5708 return ERR_PTR(-EINVAL);
807f8a8c 5709
256da02d 5710 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5711 n_channels = validate_scan_freqs(
256da02d 5712 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5713 if (!n_channels)
256da02d 5714 return ERR_PTR(-EINVAL);
807f8a8c 5715 } else {
bdfbec2d 5716 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5717 }
5718
256da02d
LC		 5719 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5720 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5721 tmp)
5722 n_ssids++;
5723
93b6aa69 5724 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5725 return ERR_PTR(-EINVAL);
807f8a8c 5726
ea73cbce
JB		 5727 /*
5728 * First, count the number of 'real' matchsets. Due to an issue with
5729 * the old implementation, matchsets containing only the RSSI attribute
5730 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5731 * RSSI for all matchsets, rather than their own matchset for reporting
5732 * all APs with a strong RSSI. This is needed to be compatible with
5733 * older userspace that treated a matchset with only the RSSI as the
5734 * global RSSI for all other matchsets - if there are other matchsets.
5735 */
256da02d 5736 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5737 nla_for_each_nested(attr,
256da02d 5738 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5739 tmp) {
5740 struct nlattr *rssi;
5741
5742 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5743 nla_data(attr), nla_len(attr),
5744 nl80211_match_policy);
5745 if (err)
256da02d 5746 return ERR_PTR(err);
ea73cbce
JB		 5747 /* add other standalone attributes here */
5748 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5749 n_match_sets++;
5750 continue;
5751 }
5752 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5753 if (rssi)
5754 default_match_rssi = nla_get_s32(rssi);
5755 }
5756 }
5757
5758 /* However, if there's no other matchset, add the RSSI one */
5759 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5760 n_match_sets = 1;
a1f1c21c
LC		 5761
5762 if (n_match_sets > wiphy->max_match_sets)
256da02d 5763 return ERR_PTR(-EINVAL);
a1f1c21c 5764
256da02d
LC		 5765 if (attrs[NL80211_ATTR_IE])
5766 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 5767 else
5768 ie_len = 0;
5769
5a865bad 5770 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 5771 return ERR_PTR(-EINVAL);
c10841ca 5772
807f8a8c 5773 request = kzalloc(sizeof(*request)
a2cd43c5 5774 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5775 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5776 + sizeof(*request->channels) * n_channels
807f8a8c 5777 + ie_len, GFP_KERNEL);
256da02d
LC		 5778 if (!request)
5779 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 5780
5781 if (n_ssids)
5782 request->ssids = (void *)&request->channels[n_channels];
5783 request->n_ssids = n_ssids;
5784 if (ie_len) {
5785 if (request->ssids)
5786 request->ie = (void *)(request->ssids + n_ssids);
5787 else
5788 request->ie = (void *)(request->channels + n_channels);
5789 }
5790
a1f1c21c
LC		 5791 if (n_match_sets) {
5792 if (request->ie)
5793 request->match_sets = (void *)(request->ie + ie_len);
5794 else if (request->ssids)
5795 request->match_sets =
5796 (void *)(request->ssids + n_ssids);
5797 else
5798 request->match_sets =
5799 (void *)(request->channels + n_channels);
5800 }
5801 request->n_match_sets = n_match_sets;
5802
807f8a8c 5803 i = 0;
256da02d 5804 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 5805 /* user specified, bail out if channel not found */
5806 nla_for_each_nested(attr,
256da02d 5807 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 5808 tmp) {
5809 struct ieee80211_channel *chan;
5810
5811 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5812
5813 if (!chan) {
5814 err = -EINVAL;
5815 goto out_free;
5816 }
5817
5818 /* ignore disabled channels */
5819 if (chan->flags & IEEE80211_CHAN_DISABLED)
5820 continue;
5821
5822 request->channels[i] = chan;
5823 i++;
5824 }
5825 } else {
5826 /* all channels */
5827 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5828 int j;
5829 if (!wiphy->bands[band])
5830 continue;
5831 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5832 struct ieee80211_channel *chan;
5833
5834 chan = &wiphy->bands[band]->channels[j];
5835
5836 if (chan->flags & IEEE80211_CHAN_DISABLED)
5837 continue;
5838
5839 request->channels[i] = chan;
5840 i++;
5841 }
5842 }
5843 }
5844
5845 if (!i) {
5846 err = -EINVAL;
5847 goto out_free;
5848 }
5849
5850 request->n_channels = i;
5851
5852 i = 0;
256da02d
LC		 5853 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
5854 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 5855 tmp) {
57a27e1d 5856 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5857 err = -EINVAL;
5858 goto out_free;
5859 }
57a27e1d 5860 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5861 memcpy(request->ssids[i].ssid, nla_data(attr),
5862 nla_len(attr));
807f8a8c
LC		 5863 i++;
5864 }
5865 }
5866
a1f1c21c 5867 i = 0;
256da02d 5868 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5869 nla_for_each_nested(attr,
256da02d 5870 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 5871 tmp) {
88e920b4 5872 struct nlattr *ssid, *rssi;
a1f1c21c 5873
ae811e21
JB		 5874 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5875 nla_data(attr), nla_len(attr),
5876 nl80211_match_policy);
5877 if (err)
5878 goto out_free;
4a4ab0d7 5879 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5880 if (ssid) {
ea73cbce
JB		 5881 if (WARN_ON(i >= n_match_sets)) {
5882 /* this indicates a programming error,
5883 * the loop above should have verified
5884 * things properly
5885 */
5886 err = -EINVAL;
5887 goto out_free;
5888 }
5889
a1f1c21c
LC		 5890 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5891 err = -EINVAL;
5892 goto out_free;
5893 }
5894 memcpy(request->match_sets[i].ssid.ssid,
5895 nla_data(ssid), nla_len(ssid));
5896 request->match_sets[i].ssid.ssid_len =
5897 nla_len(ssid);
ea73cbce
JB		 5898 /* special attribute - old implemenation w/a */
5899 request->match_sets[i].rssi_thold =
5900 default_match_rssi;
5901 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5902 if (rssi)
5903 request->match_sets[i].rssi_thold =
5904 nla_get_s32(rssi);
a1f1c21c
LC		 5905 }
5906 i++;
5907 }
ea73cbce
JB		 5908
5909 /* there was no other matchset, so the RSSI one is alone */
5910 if (i == 0)
5911 request->match_sets[0].rssi_thold = default_match_rssi;
5912
5913 request->min_rssi_thold = INT_MAX;
5914 for (i = 0; i < n_match_sets; i++)
5915 request->min_rssi_thold =
5916 min(request->match_sets[i].rssi_thold,
5917 request->min_rssi_thold);
5918 } else {
5919 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5920 }
5921
9900e484
JB		 5922 if (ie_len) {
5923 request->ie_len = ie_len;
807f8a8c 5924 memcpy((void *)request->ie,
256da02d 5925 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 5926 request->ie_len);
5927 }
5928
256da02d 5929 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 5930 request->flags = nla_get_u32(
256da02d 5931 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5932 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5933 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5934 err = -EOPNOTSUPP;
5935 goto out_free;
5936 }
5937 }
ed473771 5938
bbe6ad6d 5939 request->interval = interval;
15d6030b 5940 request->scan_start = jiffies;
807f8a8c 5941
256da02d 5942 return request;
807f8a8c
LC		 5943
5944out_free:
5945 kfree(request);
256da02d
LC		 5946 return ERR_PTR(err);
5947}
5948
5949static int nl80211_start_sched_scan(struct sk_buff *skb,
5950 struct genl_info *info)
5951{
5952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5953 struct net_device *dev = info->user_ptr[1];
5954 int err;
5955
5956 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5957 !rdev->ops->sched_scan_start)
5958 return -EOPNOTSUPP;
5959
5960 if (rdev->sched_scan_req)
5961 return -EINPROGRESS;
5962
5963 rdev->sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy,
5964 info->attrs);
5965 err = PTR_ERR_OR_ZERO(rdev->sched_scan_req);
5966 if (err)
5967 goto out_err;
5968
5969 err = rdev_sched_scan_start(rdev, dev, rdev->sched_scan_req);
5970 if (err)
5971 goto out_free;
5972
5973 rdev->sched_scan_req->dev = dev;
5974 rdev->sched_scan_req->wiphy = &rdev->wiphy;
5975
5976 nl80211_send_sched_scan(rdev, dev,
5977 NL80211_CMD_START_SCHED_SCAN);
5978 return 0;
5979
5980out_free:
5981 kfree(rdev->sched_scan_req);
5982out_err:
5983 rdev->sched_scan_req = NULL;
807f8a8c
LC		 5984 return err;
5985}
5986
5987static int nl80211_stop_sched_scan(struct sk_buff *skb,
5988 struct genl_info *info)
5989{
5990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5991
5992 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5993 !rdev->ops->sched_scan_stop)
5994 return -EOPNOTSUPP;
5995
5fe231e8 5996 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5997}
5998
04f39047
SW		 5999static int nl80211_start_radar_detection(struct sk_buff *skb,
6000 struct genl_info *info)
6001{
6002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6003 struct net_device *dev = info->user_ptr[1];
6004 struct wireless_dev *wdev = dev->ieee80211_ptr;
6005 struct cfg80211_chan_def chandef;
55f7435c 6006 enum nl80211_dfs_regions dfs_region;
31559f35 6007 unsigned int cac_time_ms;
04f39047
SW		 6008 int err;
6009
55f7435c
LR		 6010 dfs_region = reg_get_dfs_region(wdev->wiphy);
6011 if (dfs_region == NL80211_DFS_UNSET)
6012 return -EINVAL;
6013
04f39047
SW		 6014 err = nl80211_parse_chandef(rdev, info, &chandef);
6015 if (err)
6016 return err;
6017
ff311bc1
SW		 6018 if (netif_carrier_ok(dev))
6019 return -EBUSY;
6020
04f39047
SW		 6021 if (wdev->cac_started)
6022 return -EBUSY;
6023
2beb6dab 6024 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6025 wdev->iftype);
04f39047
SW		 6026 if (err < 0)
6027 return err;
6028
6029 if (err == 0)
6030 return -EINVAL;
6031
fe7c3a1f 6032 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6033 return -EINVAL;
6034
6035 if (!rdev->ops->start_radar_detection)
6036 return -EOPNOTSUPP;
6037
31559f35
JD		 6038 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6039 if (WARN_ON(!cac_time_ms))
6040 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6041
6042 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6043 cac_time_ms);
04f39047 6044 if (!err) {
9e0e2961 6045 wdev->chandef = chandef;
04f39047
SW		 6046 wdev->cac_started = true;
6047 wdev->cac_start_time = jiffies;
31559f35 6048 wdev->cac_time_ms = cac_time_ms;
04f39047 6049 }
04f39047
SW		 6050 return err;
6051}
6052
16ef1fe2
SW		 6053static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6054{
6055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6056 struct net_device *dev = info->user_ptr[1];
6057 struct wireless_dev *wdev = dev->ieee80211_ptr;
6058 struct cfg80211_csa_settings params;
6059 /* csa_attrs is defined static to avoid waste of stack size - this
6060 * function is called under RTNL lock, so this should not be a problem.
6061 */
6062 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6063 int err;
ee4bc9e7 6064 bool need_new_beacon = false;
9a774c78 6065 int len, i;
252e07ca 6066 u32 cs_count;
16ef1fe2
SW		 6067
6068 if (!rdev->ops->channel_switch ||
6069 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6070 return -EOPNOTSUPP;
6071
ee4bc9e7
SW		 6072 switch (dev->ieee80211_ptr->iftype) {
6073 case NL80211_IFTYPE_AP:
6074 case NL80211_IFTYPE_P2P_GO:
6075 need_new_beacon = true;
6076
6077 /* useless if AP is not running */
6078 if (!wdev->beacon_interval)
1ff79dfa 6079 return -ENOTCONN;
ee4bc9e7
SW		 6080 break;
6081 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6082 if (!wdev->ssid_len)
6083 return -ENOTCONN;
6084 break;
c6da674a 6085 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6086 if (!wdev->mesh_id_len)
6087 return -ENOTCONN;
ee4bc9e7
SW		 6088 break;
6089 default:
16ef1fe2 6090 return -EOPNOTSUPP;
ee4bc9e7 6091 }
16ef1fe2
SW		 6092
6093 memset(&params, 0, sizeof(params));
6094
6095 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6096 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6097 return -EINVAL;
6098
6099 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6100 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6101 return -EINVAL;
6102
252e07ca
LC		 6103 /* Even though the attribute is u32, the specification says
6104 * u8, so let's make sure we don't overflow.
6105 */
6106 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6107 if (cs_count > 255)
6108 return -EINVAL;
6109
6110 params.count = cs_count;
16ef1fe2 6111
ee4bc9e7
SW		 6112 if (!need_new_beacon)
6113 goto skip_beacons;
6114
16ef1fe2
SW		 6115 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6116 if (err)
6117 return err;
6118
6119 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6120 info->attrs[NL80211_ATTR_CSA_IES],
6121 nl80211_policy);
6122 if (err)
6123 return err;
6124
6125 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6126 if (err)
6127 return err;
6128
6129 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6130 return -EINVAL;
6131
9a774c78
AO		 6132 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6133 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6134 return -EINVAL;
6135
9a774c78
AO		 6136 params.n_counter_offsets_beacon = len / sizeof(u16);
6137 if (rdev->wiphy.max_num_csa_counters &&
6138 (params.n_counter_offsets_beacon >
6139 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6140 return -EINVAL;
6141
9a774c78
AO		 6142 params.counter_offsets_beacon =
6143 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6144
6145 /* sanity checks - counters should fit and be the same */
6146 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6147 u16 offset = params.counter_offsets_beacon[i];
6148
6149 if (offset >= params.beacon_csa.tail_len)
6150 return -EINVAL;
6151
6152 if (params.beacon_csa.tail[offset] != params.count)
6153 return -EINVAL;
6154 }
6155
16ef1fe2 6156 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6157 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6158 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6159 return -EINVAL;
6160
9a774c78
AO		 6161 params.n_counter_offsets_presp = len / sizeof(u16);
6162 if (rdev->wiphy.max_num_csa_counters &&
6163 (params.n_counter_offsets_beacon >
6164 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6165 return -EINVAL;
9a774c78
AO		 6166
6167 params.counter_offsets_presp =
6168 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6169
6170 /* sanity checks - counters should fit and be the same */
6171 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6172 u16 offset = params.counter_offsets_presp[i];
6173
6174 if (offset >= params.beacon_csa.probe_resp_len)
6175 return -EINVAL;
6176
6177 if (params.beacon_csa.probe_resp[offset] !=
6178 params.count)
6179 return -EINVAL;
6180 }
16ef1fe2
SW		 6181 }
6182
ee4bc9e7 6183skip_beacons:
16ef1fe2
SW		 6184 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6185 if (err)
6186 return err;
6187
174e0cd2
IP		 6188 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6189 wdev->iftype))
16ef1fe2
SW		 6190 return -EINVAL;
6191
2beb6dab
LC		 6192 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6193 &params.chandef,
6194 wdev->iftype);
6195 if (err < 0)
6196 return err;
6197
dcc6c2f5 6198 if (err > 0)
2beb6dab 6199 params.radar_required = true;
16ef1fe2 6200
16ef1fe2
SW		 6201 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6202 params.block_tx = true;
6203
c56589ed
SW		 6204 wdev_lock(wdev);
6205 err = rdev_channel_switch(rdev, dev, &params);
6206 wdev_unlock(wdev);
6207
6208 return err;
16ef1fe2
SW		 6209}
6210
9720bb3a
JB		 6211static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6212 u32 seq, int flags,
2a519311 6213 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6214 struct wireless_dev *wdev,
6215 struct cfg80211_internal_bss *intbss)
2a519311 6216{
48ab905d 6217 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6218 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6219 void *hdr;
6220 struct nlattr *bss;
48ab905d
JB		 6221
6222 ASSERT_WDEV_LOCK(wdev);
2a519311 6223
15e47304 6224 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6225 NL80211_CMD_NEW_SCAN_RESULTS);
6226 if (!hdr)
6227 return -1;
6228
9720bb3a
JB		 6229 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6230
97990a06
JB		 6231 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6232 goto nla_put_failure;
6233 if (wdev->netdev &&
9360ffd1
DM		 6234 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6235 goto nla_put_failure;
97990a06
JB		 6236 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6237 goto nla_put_failure;
2a519311
JB		 6238
6239 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6240 if (!bss)
6241 goto nla_put_failure;
9360ffd1 6242 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6243 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6244 goto nla_put_failure;
9caf0364
JB		 6245
6246 rcu_read_lock();
0e227084
JB		 6247 /* indicate whether we have probe response data or not */
6248 if (rcu_access_pointer(res->proberesp_ies) &&
6249 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6250 goto fail_unlock_rcu;
6251
6252 /* this pointer prefers to be pointed to probe response data
6253 * but is always valid
6254 */
9caf0364 6255 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6256 if (ies) {
6257 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6258 goto fail_unlock_rcu;
8cef2c9d
JB		 6259 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6260 ies->len, ies->data))
6261 goto fail_unlock_rcu;
9caf0364 6262 }
0e227084
JB		 6263
6264 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6265 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6266 if (ies && ies->from_beacon) {
6267 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6268 goto fail_unlock_rcu;
6269 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6270 ies->len, ies->data))
6271 goto fail_unlock_rcu;
9caf0364
JB		 6272 }
6273 rcu_read_unlock();
6274
9360ffd1
DM		 6275 if (res->beacon_interval &&
6276 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6277 goto nla_put_failure;
6278 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6279 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6280 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6281 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6282 jiffies_to_msecs(jiffies - intbss->ts)))
6283 goto nla_put_failure;
2a519311 6284
77965c97 6285 switch (rdev->wiphy.signal_type) {
2a519311 6286 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6287 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6288 goto nla_put_failure;
2a519311
JB		 6289 break;
6290 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6291 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6292 goto nla_put_failure;
2a519311
JB		 6293 break;
6294 default:
6295 break;
6296 }
6297
48ab905d 6298 switch (wdev->iftype) {
074ac8df 6299 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6300 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6301 if (intbss == wdev->current_bss &&
6302 nla_put_u32(msg, NL80211_BSS_STATUS,
6303 NL80211_BSS_STATUS_ASSOCIATED))
6304 goto nla_put_failure;
48ab905d
JB		 6305 break;
6306 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6307 if (intbss == wdev->current_bss &&
6308 nla_put_u32(msg, NL80211_BSS_STATUS,
6309 NL80211_BSS_STATUS_IBSS_JOINED))
6310 goto nla_put_failure;
48ab905d
JB		 6311 break;
6312 default:
6313 break;
6314 }
6315
2a519311
JB		 6316 nla_nest_end(msg, bss);
6317
6318 return genlmsg_end(msg, hdr);
6319
8cef2c9d
JB		 6320 fail_unlock_rcu:
6321 rcu_read_unlock();
2a519311
JB		 6322 nla_put_failure:
6323 genlmsg_cancel(msg, hdr);
6324 return -EMSGSIZE;
6325}
6326
97990a06 6327static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6328{
48ab905d 6329 struct cfg80211_registered_device *rdev;
2a519311 6330 struct cfg80211_internal_bss *scan;
48ab905d 6331 struct wireless_dev *wdev;
97990a06 6332 int start = cb->args[2], idx = 0;
2a519311
JB		 6333 int err;
6334
97990a06 6335 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6336 if (err)
6337 return err;
2a519311 6338
48ab905d
JB		 6339 wdev_lock(wdev);
6340 spin_lock_bh(&rdev->bss_lock);
6341 cfg80211_bss_expire(rdev);
6342
9720bb3a
JB		 6343 cb->seq = rdev->bss_generation;
6344
48ab905d 6345 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6346 if (++idx <= start)
6347 continue;
9720bb3a 6348 if (nl80211_send_bss(skb, cb,
2a519311 6349 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6350 rdev, wdev, scan) < 0) {
2a519311 6351 idx--;
67748893 6352 break;
2a519311
JB		 6353 }
6354 }
6355
48ab905d
JB		 6356 spin_unlock_bh(&rdev->bss_lock);
6357 wdev_unlock(wdev);
2a519311 6358
97990a06
JB		 6359 cb->args[2] = idx;
6360 nl80211_finish_wdev_dump(rdev);
2a519311 6361
67748893 6362 return skb->len;
2a519311
JB		 6363}
6364
15e47304 6365static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6366 int flags, struct net_device *dev,
6367 struct survey_info *survey)
6368{
6369 void *hdr;
6370 struct nlattr *infoattr;
6371
15e47304 6372 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6373 NL80211_CMD_NEW_SURVEY_RESULTS);
6374 if (!hdr)
6375 return -ENOMEM;
6376
9360ffd1
DM		 6377 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6378 goto nla_put_failure;
61fa713c
HS		 6379
6380 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6381 if (!infoattr)
6382 goto nla_put_failure;
6383
9360ffd1
DM		 6384 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6385 survey->channel->center_freq))
6386 goto nla_put_failure;
6387
6388 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6389 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6390 goto nla_put_failure;
6391 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6392 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6393 goto nla_put_failure;
6394 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6395 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6396 survey->channel_time))
6397 goto nla_put_failure;
6398 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6399 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6400 survey->channel_time_busy))
6401 goto nla_put_failure;
6402 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6403 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6404 survey->channel_time_ext_busy))
6405 goto nla_put_failure;
6406 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6407 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6408 survey->channel_time_rx))
6409 goto nla_put_failure;
6410 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6411 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6412 survey->channel_time_tx))
6413 goto nla_put_failure;
61fa713c
HS		 6414
6415 nla_nest_end(msg, infoattr);
6416
6417 return genlmsg_end(msg, hdr);
6418
6419 nla_put_failure:
6420 genlmsg_cancel(msg, hdr);
6421 return -EMSGSIZE;
6422}
6423
6424static int nl80211_dump_survey(struct sk_buff *skb,
6425 struct netlink_callback *cb)
6426{
6427 struct survey_info survey;
1b8ec87a 6428 struct cfg80211_registered_device *rdev;
97990a06
JB		 6429 struct wireless_dev *wdev;
6430 int survey_idx = cb->args[2];
61fa713c
HS		 6431 int res;
6432
1b8ec87a 6433 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6434 if (res)
6435 return res;
61fa713c 6436
97990a06
JB		 6437 if (!wdev->netdev) {
6438 res = -EINVAL;
6439 goto out_err;
6440 }
6441
1b8ec87a 6442 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6443 res = -EOPNOTSUPP;
6444 goto out_err;
6445 }
6446
6447 while (1) {
180cdc79
LR		 6448 struct ieee80211_channel *chan;
6449
1b8ec87a 6450 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6451 if (res == -ENOENT)
6452 break;
6453 if (res)
6454 goto out_err;
6455
180cdc79
LR		 6456 /* Survey without a channel doesn't make sense */
6457 if (!survey.channel) {
6458 res = -EINVAL;
6459 goto out;
6460 }
6461
1b8ec87a 6462 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6463 survey.channel->center_freq);
6464 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6465 survey_idx++;
6466 continue;
6467 }
6468
61fa713c 6469 if (nl80211_send_survey(skb,
15e47304 6470 NETLINK_CB(cb->skb).portid,
61fa713c 6471 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6472 wdev->netdev, &survey) < 0)
61fa713c
HS		 6473 goto out;
6474 survey_idx++;
6475 }
6476
6477 out:
97990a06 6478 cb->args[2] = survey_idx;
61fa713c
HS		 6479 res = skb->len;
6480 out_err:
1b8ec87a 6481 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6482 return res;
6483}
6484
b23aa676
SO		 6485static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6486{
6487 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6488 NL80211_WPA_VERSION_2));
6489}
6490
636a5d36
JM		 6491static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6492{
4c476991
JB		 6493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6494 struct net_device *dev = info->user_ptr[1];
19957bb3 6495 struct ieee80211_channel *chan;
e39e5b5e
JM		 6496 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6497 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6498 enum nl80211_auth_type auth_type;
fffd0934 6499 struct key_parse key;
d5cdfacb 6500 bool local_state_change;
636a5d36 6501
f4a11bb0
JB		 6502 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6503 return -EINVAL;
6504
6505 if (!info->attrs[NL80211_ATTR_MAC])
6506 return -EINVAL;
6507
1778092e
JM		 6508 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6509 return -EINVAL;
6510
19957bb3
JB		 6511 if (!info->attrs[NL80211_ATTR_SSID])
6512 return -EINVAL;
6513
6514 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6515 return -EINVAL;
6516
fffd0934
JB		 6517 err = nl80211_parse_key(info, &key);
6518 if (err)
6519 return err;
6520
6521 if (key.idx >= 0) {
e31b8213
JB		 6522 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6523 return -EINVAL;
fffd0934
JB		 6524 if (!key.p.key || !key.p.key_len)
6525 return -EINVAL;
6526 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6527 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6528 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6529 key.p.key_len != WLAN_KEY_LEN_WEP104))
6530 return -EINVAL;
6531 if (key.idx > 4)
6532 return -EINVAL;
6533 } else {
6534 key.p.key_len = 0;
6535 key.p.key = NULL;
6536 }
6537
afea0b7a
JB		 6538 if (key.idx >= 0) {
6539 int i;
6540 bool ok = false;
6541 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6542 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6543 ok = true;
6544 break;
6545 }
6546 }
4c476991
JB		 6547 if (!ok)
6548 return -EINVAL;
afea0b7a
JB		 6549 }
6550
4c476991
JB		 6551 if (!rdev->ops->auth)
6552 return -EOPNOTSUPP;
636a5d36 6553
074ac8df 6554 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6555 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6556 return -EOPNOTSUPP;
eec60b03 6557
19957bb3 6558 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6559 chan = nl80211_get_valid_chan(&rdev->wiphy,
6560 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6561 if (!chan)
4c476991 6562 return -EINVAL;
636a5d36 6563
19957bb3
JB		 6564 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6565 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6566
6567 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6568 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6569 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6570 }
6571
19957bb3 6572 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6573 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6574 return -EINVAL;
636a5d36 6575
e39e5b5e
JM		 6576 if (auth_type == NL80211_AUTHTYPE_SAE &&
6577 !info->attrs[NL80211_ATTR_SAE_DATA])
6578 return -EINVAL;
6579
6580 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6581 if (auth_type != NL80211_AUTHTYPE_SAE)
6582 return -EINVAL;
6583 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6584 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6585 /* need to include at least Auth Transaction and Status Code */
6586 if (sae_data_len < 4)
6587 return -EINVAL;
6588 }
6589
d5cdfacb
JM		 6590 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6591
95de817b
JB		 6592 /*
6593 * Since we no longer track auth state, ignore
6594 * requests to only change local state.
6595 */
6596 if (local_state_change)
6597 return 0;
6598
91bf9b26
JB		 6599 wdev_lock(dev->ieee80211_ptr);
6600 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6601 ssid, ssid_len, ie, ie_len,
6602 key.p.key, key.p.key_len, key.idx,
6603 sae_data, sae_data_len);
6604 wdev_unlock(dev->ieee80211_ptr);
6605 return err;
636a5d36
JM		 6606}
6607
c0692b8f
JB		 6608static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6609 struct genl_info *info,
3dc27d25
JB		 6610 struct cfg80211_crypto_settings *settings,
6611 int cipher_limit)
b23aa676 6612{
c0b2bbd8
JB		 6613 memset(settings, 0, sizeof(*settings));
6614
b23aa676
SO		 6615 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6616
c0692b8f
JB		 6617 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6618 u16 proto;
6619 proto = nla_get_u16(
6620 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6621 settings->control_port_ethertype = cpu_to_be16(proto);
6622 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6623 proto != ETH_P_PAE)
6624 return -EINVAL;
6625 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6626 settings->control_port_no_encrypt = true;
6627 } else
6628 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6629
b23aa676
SO		 6630 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6631 void *data;
6632 int len, i;
6633
6634 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6635 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6636 settings->n_ciphers_pairwise = len / sizeof(u32);
6637
6638 if (len % sizeof(u32))
6639 return -EINVAL;
6640
3dc27d25 6641 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6642 return -EINVAL;
6643
6644 memcpy(settings->ciphers_pairwise, data, len);
6645
6646 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6647 if (!cfg80211_supported_cipher_suite(
6648 &rdev->wiphy,
b23aa676
SO		 6649 settings->ciphers_pairwise[i]))
6650 return -EINVAL;
6651 }
6652
6653 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6654 settings->cipher_group =
6655 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6656 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6657 settings->cipher_group))
b23aa676
SO		 6658 return -EINVAL;
6659 }
6660
6661 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6662 settings->wpa_versions =
6663 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6664 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6665 return -EINVAL;
6666 }
6667
6668 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6669 void *data;
6d30240e 6670 int len;
b23aa676
SO		 6671
6672 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6673 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6674 settings->n_akm_suites = len / sizeof(u32);
6675
6676 if (len % sizeof(u32))
6677 return -EINVAL;
6678
1b9ca027
JM		 6679 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6680 return -EINVAL;
6681
b23aa676 6682 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6683 }
6684
6685 return 0;
6686}
6687
636a5d36
JM		 6688static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6689{
4c476991
JB		 6690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6691 struct net_device *dev = info->user_ptr[1];
f444de05 6692 struct ieee80211_channel *chan;
f62fab73
JB		 6693 struct cfg80211_assoc_request req = {};
6694 const u8 *bssid, *ssid;
6695 int err, ssid_len = 0;
636a5d36 6696
f4a11bb0
JB		 6697 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6698 return -EINVAL;
6699
6700 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6701 !info->attrs[NL80211_ATTR_SSID] ||
6702 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6703 return -EINVAL;
6704
4c476991
JB		 6705 if (!rdev->ops->assoc)
6706 return -EOPNOTSUPP;
636a5d36 6707
074ac8df 6708 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6709 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6710 return -EOPNOTSUPP;
eec60b03 6711
19957bb3 6712 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6713
664834de
JM		 6714 chan = nl80211_get_valid_chan(&rdev->wiphy,
6715 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6716 if (!chan)
4c476991 6717 return -EINVAL;
636a5d36 6718
19957bb3
JB		 6719 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6720 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6721
6722 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6723 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6724 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6725 }
6726
dc6382ce 6727 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6728 enum nl80211_mfp mfp =
dc6382ce 6729 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6730 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6731 req.use_mfp = true;
4c476991
JB		 6732 else if (mfp != NL80211_MFP_NO)
6733 return -EINVAL;
dc6382ce
JM		 6734 }
6735
3e5d7649 6736 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6737 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6738
7e7c8926 6739 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6740 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6741
6742 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6743 memcpy(&req.ht_capa_mask,
6744 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6745 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6746
6747 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6748 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6749 return -EINVAL;
f62fab73
JB		 6750 memcpy(&req.ht_capa,
6751 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6752 sizeof(req.ht_capa));
7e7c8926
BG		 6753 }
6754
ee2aca34 6755 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6756 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6757
6758 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6759 memcpy(&req.vht_capa_mask,
6760 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6761 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6762
6763 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6764 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6765 return -EINVAL;
f62fab73
JB		 6766 memcpy(&req.vht_capa,
6767 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6768 sizeof(req.vht_capa));
ee2aca34
JB		 6769 }
6770
bab5ab7d
AK		 6771 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6772 if (!(rdev->wiphy.features &
6773 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6774 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6775 return -EINVAL;
6776 req.flags |= ASSOC_REQ_USE_RRM;
6777 }
6778
f62fab73 6779 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6780 if (!err) {
6781 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6782 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6783 ssid, ssid_len, &req);
91bf9b26
JB		 6784 wdev_unlock(dev->ieee80211_ptr);
6785 }
636a5d36 6786
636a5d36
JM		 6787 return err;
6788}
6789
6790static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6791{
4c476991
JB		 6792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6793 struct net_device *dev = info->user_ptr[1];
19957bb3 6794 const u8 *ie = NULL, *bssid;
91bf9b26 6795 int ie_len = 0, err;
19957bb3 6796 u16 reason_code;
d5cdfacb 6797 bool local_state_change;
636a5d36 6798
f4a11bb0
JB		 6799 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6800 return -EINVAL;
6801
6802 if (!info->attrs[NL80211_ATTR_MAC])
6803 return -EINVAL;
6804
6805 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6806 return -EINVAL;
6807
4c476991
JB		 6808 if (!rdev->ops->deauth)
6809 return -EOPNOTSUPP;
636a5d36 6810
074ac8df 6811 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6812 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6813 return -EOPNOTSUPP;
eec60b03 6814
19957bb3 6815 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6816
19957bb3
JB		 6817 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6818 if (reason_code == 0) {
f4a11bb0 6819 /* Reason Code 0 is reserved */
4c476991 6820 return -EINVAL;
255e737e 6821 }
636a5d36
JM		 6822
6823 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6824 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6825 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6826 }
6827
d5cdfacb
JM		 6828 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6829
91bf9b26
JB		 6830 wdev_lock(dev->ieee80211_ptr);
6831 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6832 local_state_change);
6833 wdev_unlock(dev->ieee80211_ptr);
6834 return err;
636a5d36
JM		 6835}
6836
6837static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6838{
4c476991
JB		 6839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6840 struct net_device *dev = info->user_ptr[1];
19957bb3 6841 const u8 *ie = NULL, *bssid;
91bf9b26 6842 int ie_len = 0, err;
19957bb3 6843 u16 reason_code;
d5cdfacb 6844 bool local_state_change;
636a5d36 6845
f4a11bb0
JB		 6846 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6847 return -EINVAL;
6848
6849 if (!info->attrs[NL80211_ATTR_MAC])
6850 return -EINVAL;
6851
6852 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6853 return -EINVAL;
6854
4c476991
JB		 6855 if (!rdev->ops->disassoc)
6856 return -EOPNOTSUPP;
636a5d36 6857
074ac8df 6858 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6859 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6860 return -EOPNOTSUPP;
eec60b03 6861
19957bb3 6862 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6863
19957bb3
JB		 6864 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6865 if (reason_code == 0) {
f4a11bb0 6866 /* Reason Code 0 is reserved */
4c476991 6867 return -EINVAL;
255e737e 6868 }
636a5d36
JM		 6869
6870 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6871 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6872 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6873 }
6874
d5cdfacb
JM		 6875 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6876
91bf9b26
JB		 6877 wdev_lock(dev->ieee80211_ptr);
6878 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6879 local_state_change);
6880 wdev_unlock(dev->ieee80211_ptr);
6881 return err;
636a5d36
JM		 6882}
6883
dd5b4cc7
FF		 6884static bool
6885nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6886 int mcast_rate[IEEE80211_NUM_BANDS],
6887 int rateval)
6888{
6889 struct wiphy *wiphy = &rdev->wiphy;
6890 bool found = false;
6891 int band, i;
6892
6893 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6894 struct ieee80211_supported_band *sband;
6895
6896 sband = wiphy->bands[band];
6897 if (!sband)
6898 continue;
6899
6900 for (i = 0; i < sband->n_bitrates; i++) {
6901 if (sband->bitrates[i].bitrate == rateval) {
6902 mcast_rate[band] = i + 1;
6903 found = true;
6904 break;
6905 }
6906 }
6907 }
6908
6909 return found;
6910}
6911
04a773ad
JB		 6912static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6913{
4c476991
JB		 6914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6915 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6916 struct cfg80211_ibss_params ibss;
6917 struct wiphy *wiphy;
fffd0934 6918 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6919 int err;
6920
8e30bc55
JB		 6921 memset(&ibss, 0, sizeof(ibss));
6922
04a773ad
JB		 6923 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6924 return -EINVAL;
6925
683b6d3b 6926 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6927 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6928 return -EINVAL;
6929
8e30bc55
JB		 6930 ibss.beacon_interval = 100;
6931
6932 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6933 ibss.beacon_interval =
6934 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6935 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6936 return -EINVAL;
6937 }
6938
4c476991
JB		 6939 if (!rdev->ops->join_ibss)
6940 return -EOPNOTSUPP;
04a773ad 6941
4c476991
JB		 6942 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6943 return -EOPNOTSUPP;
04a773ad 6944
79c97e97 6945 wiphy = &rdev->wiphy;
04a773ad 6946
39193498 6947 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6948 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6949
6950 if (!is_valid_ether_addr(ibss.bssid))
6951 return -EINVAL;
6952 }
04a773ad
JB		 6953 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6954 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6955
6956 if (info->attrs[NL80211_ATTR_IE]) {
6957 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6958 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6959 }
6960
683b6d3b
JB		 6961 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6962 if (err)
6963 return err;
04a773ad 6964
174e0cd2
IP		 6965 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6966 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6967 return -EINVAL;
6968
2f301ab2 6969 switch (ibss.chandef.width) {
bf372645
SW		 6970 case NL80211_CHAN_WIDTH_5:
6971 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6972 case NL80211_CHAN_WIDTH_20_NOHT:
6973 break;
6974 case NL80211_CHAN_WIDTH_20:
6975 case NL80211_CHAN_WIDTH_40:
6976 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6977 break;
6978 default:
c04d6150 6979 return -EINVAL;
2f301ab2 6980 }
db9c64cf 6981
04a773ad 6982 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6983 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6984
fbd2c8dc
TP		 6985 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6986 u8 *rates =
6987 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6988 int n_rates =
6989 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6990 struct ieee80211_supported_band *sband =
683b6d3b 6991 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6992
34850ab2
JB		 6993 err = ieee80211_get_ratemask(sband, rates, n_rates,
6994 &ibss.basic_rates);
6995 if (err)
6996 return err;
fbd2c8dc 6997 }
dd5b4cc7 6998
803768f5
SW		 6999 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7000 memcpy(&ibss.ht_capa_mask,
7001 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7002 sizeof(ibss.ht_capa_mask));
7003
7004 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7005 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7006 return -EINVAL;
7007 memcpy(&ibss.ht_capa,
7008 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7009 sizeof(ibss.ht_capa));
7010 }
7011
dd5b4cc7
FF		 7012 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7013 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7014 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7015 return -EINVAL;
fbd2c8dc 7016
4c476991 7017 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7018 bool no_ht = false;
7019
4c476991 7020 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7021 info->attrs[NL80211_ATTR_KEYS],
7022 &no_ht);
4c476991
JB		 7023 if (IS_ERR(connkeys))
7024 return PTR_ERR(connkeys);
de7044ee 7025
3d9d1d66
JB		 7026 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7027 no_ht) {
de7044ee
SM		 7028 kfree(connkeys);
7029 return -EINVAL;
7030 }
4c476991 7031 }
04a773ad 7032
267335d6
AQ		 7033 ibss.control_port =
7034 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7035
5336fa88
SW		 7036 ibss.userspace_handles_dfs =
7037 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7038
4c476991 7039 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7040 if (err)
b47f610b 7041 kzfree(connkeys);
04a773ad
JB		 7042 return err;
7043}
7044
7045static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7046{
4c476991
JB		 7047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7048 struct net_device *dev = info->user_ptr[1];
04a773ad 7049
4c476991
JB		 7050 if (!rdev->ops->leave_ibss)
7051 return -EOPNOTSUPP;
04a773ad 7052
4c476991
JB		 7053 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7054 return -EOPNOTSUPP;
04a773ad 7055
4c476991 7056 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7057}
7058
f4e583c8
AQ		 7059static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7060{
7061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7062 struct net_device *dev = info->user_ptr[1];
7063 int mcast_rate[IEEE80211_NUM_BANDS];
7064 u32 nla_rate;
7065 int err;
7066
7067 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7068 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7069 return -EOPNOTSUPP;
7070
7071 if (!rdev->ops->set_mcast_rate)
7072 return -EOPNOTSUPP;
7073
7074 memset(mcast_rate, 0, sizeof(mcast_rate));
7075
7076 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7077 return -EINVAL;
7078
7079 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7080 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7081 return -EINVAL;
7082
7083 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7084
7085 return err;
7086}
7087
ad7e718c
JB		 7088static struct sk_buff *
7089__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7090 int approxlen, u32 portid, u32 seq,
7091 enum nl80211_commands cmd,
567ffc35
JB		 7092 enum nl80211_attrs attr,
7093 const struct nl80211_vendor_cmd_info *info,
7094 gfp_t gfp)
ad7e718c
JB		 7095{
7096 struct sk_buff *skb;
7097 void *hdr;
7098 struct nlattr *data;
7099
7100 skb = nlmsg_new(approxlen + 100, gfp);
7101 if (!skb)
7102 return NULL;
7103
7104 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7105 if (!hdr) {
7106 kfree_skb(skb);
7107 return NULL;
7108 }
7109
7110 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7111 goto nla_put_failure;
567ffc35
JB		 7112
7113 if (info) {
7114 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7115 info->vendor_id))
7116 goto nla_put_failure;
7117 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7118 info->subcmd))
7119 goto nla_put_failure;
7120 }
7121
ad7e718c
JB		 7122 data = nla_nest_start(skb, attr);
7123
7124 ((void **)skb->cb)[0] = rdev;
7125 ((void **)skb->cb)[1] = hdr;
7126 ((void **)skb->cb)[2] = data;
7127
7128 return skb;
7129
7130 nla_put_failure:
7131 kfree_skb(skb);
7132 return NULL;
7133}
f4e583c8 7134
e03ad6ea
JB		 7135struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7136 enum nl80211_commands cmd,
7137 enum nl80211_attrs attr,
7138 int vendor_event_idx,
7139 int approxlen, gfp_t gfp)
7140{
f26cbf40 7141 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7142 const struct nl80211_vendor_cmd_info *info;
7143
7144 switch (cmd) {
7145 case NL80211_CMD_TESTMODE:
7146 if (WARN_ON(vendor_event_idx != -1))
7147 return NULL;
7148 info = NULL;
7149 break;
7150 case NL80211_CMD_VENDOR:
7151 if (WARN_ON(vendor_event_idx < 0 ||
7152 vendor_event_idx >= wiphy->n_vendor_events))
7153 return NULL;
7154 info = &wiphy->vendor_events[vendor_event_idx];
7155 break;
7156 default:
7157 WARN_ON(1);
7158 return NULL;
7159 }
7160
7161 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7162 cmd, attr, info, gfp);
7163}
7164EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7165
7166void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7167{
7168 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7169 void *hdr = ((void **)skb->cb)[1];
7170 struct nlattr *data = ((void **)skb->cb)[2];
7171 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7172
bd8c78e7
JB		 7173 /* clear CB data for netlink core to own from now on */
7174 memset(skb->cb, 0, sizeof(skb->cb));
7175
e03ad6ea
JB		 7176 nla_nest_end(skb, data);
7177 genlmsg_end(skb, hdr);
7178
7179 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7180 mcgrp = NL80211_MCGRP_VENDOR;
7181
7182 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7183 mcgrp, gfp);
7184}
7185EXPORT_SYMBOL(__cfg80211_send_event_skb);
7186
aff89a9b 7187#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7188static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7189{
4c476991 7190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7191 struct wireless_dev *wdev =
7192 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7193 int err;
7194
fc73f11f
DS		 7195 if (!rdev->ops->testmode_cmd)
7196 return -EOPNOTSUPP;
7197
7198 if (IS_ERR(wdev)) {
7199 err = PTR_ERR(wdev);
7200 if (err != -EINVAL)
7201 return err;
7202 wdev = NULL;
7203 } else if (wdev->wiphy != &rdev->wiphy) {
7204 return -EINVAL;
7205 }
7206
aff89a9b
JB		 7207 if (!info->attrs[NL80211_ATTR_TESTDATA])
7208 return -EINVAL;
7209
ad7e718c 7210 rdev->cur_cmd_info = info;
fc73f11f 7211 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7212 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7213 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7214 rdev->cur_cmd_info = NULL;
aff89a9b 7215
aff89a9b
JB		 7216 return err;
7217}
7218
71063f0e
WYG		 7219static int nl80211_testmode_dump(struct sk_buff *skb,
7220 struct netlink_callback *cb)
7221{
00918d33 7222 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7223 int err;
7224 long phy_idx;
7225 void *data = NULL;
7226 int data_len = 0;
7227
5fe231e8
JB		 7228 rtnl_lock();
7229
71063f0e
WYG		 7230 if (cb->args[0]) {
7231 /*
7232 * 0 is a valid index, but not valid for args[0],
7233 * so we need to offset by 1.
7234 */
7235 phy_idx = cb->args[0] - 1;
7236 } else {
7237 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7238 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7239 nl80211_policy);
7240 if (err)
5fe231e8 7241 goto out_err;
00918d33 7242
2bd7e35d
JB		 7243 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7244 nl80211_fam.attrbuf);
7245 if (IS_ERR(rdev)) {
5fe231e8
JB		 7246 err = PTR_ERR(rdev);
7247 goto out_err;
00918d33 7248 }
2bd7e35d
JB		 7249 phy_idx = rdev->wiphy_idx;
7250 rdev = NULL;
2bd7e35d 7251
71063f0e
WYG		 7252 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7253 cb->args[1] =
7254 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7255 }
7256
7257 if (cb->args[1]) {
7258 data = nla_data((void *)cb->args[1]);
7259 data_len = nla_len((void *)cb->args[1]);
7260 }
7261
00918d33
JB		 7262 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7263 if (!rdev) {
5fe231e8
JB		 7264 err = -ENOENT;
7265 goto out_err;
71063f0e 7266 }
71063f0e 7267
00918d33 7268 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7269 err = -EOPNOTSUPP;
7270 goto out_err;
7271 }
7272
7273 while (1) {
15e47304 7274 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7275 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7276 NL80211_CMD_TESTMODE);
7277 struct nlattr *tmdata;
7278
cb35fba3
DC		 7279 if (!hdr)
7280 break;
7281
9360ffd1 7282 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7283 genlmsg_cancel(skb, hdr);
7284 break;
7285 }
7286
7287 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7288 if (!tmdata) {
7289 genlmsg_cancel(skb, hdr);
7290 break;
7291 }
e35e4d28 7292 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7293 nla_nest_end(skb, tmdata);
7294
7295 if (err == -ENOBUFS || err == -ENOENT) {
7296 genlmsg_cancel(skb, hdr);
7297 break;
7298 } else if (err) {
7299 genlmsg_cancel(skb, hdr);
7300 goto out_err;
7301 }
7302
7303 genlmsg_end(skb, hdr);
7304 }
7305
7306 err = skb->len;
7307 /* see above */
7308 cb->args[0] = phy_idx + 1;
7309 out_err:
5fe231e8 7310 rtnl_unlock();
71063f0e
WYG		 7311 return err;
7312}
aff89a9b
JB		 7313#endif
7314
b23aa676
SO		 7315static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7316{
4c476991
JB		 7317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7318 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7319 struct cfg80211_connect_params connect;
7320 struct wiphy *wiphy;
fffd0934 7321 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7322 int err;
7323
7324 memset(&connect, 0, sizeof(connect));
7325
7326 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7327 return -EINVAL;
7328
7329 if (!info->attrs[NL80211_ATTR_SSID] ||
7330 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7331 return -EINVAL;
7332
7333 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7334 connect.auth_type =
7335 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7336 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7337 NL80211_CMD_CONNECT))
b23aa676
SO		 7338 return -EINVAL;
7339 } else
7340 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7341
7342 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7343
c0692b8f 7344 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7345 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7346 if (err)
7347 return err;
b23aa676 7348
074ac8df 7349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7351 return -EOPNOTSUPP;
b23aa676 7352
79c97e97 7353 wiphy = &rdev->wiphy;
b23aa676 7354
4486ea98
BS		 7355 connect.bg_scan_period = -1;
7356 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7357 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7358 connect.bg_scan_period =
7359 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7360 }
7361
b23aa676
SO		 7362 if (info->attrs[NL80211_ATTR_MAC])
7363 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7364 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7365 connect.bssid_hint =
7366 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7367 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7368 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7369
7370 if (info->attrs[NL80211_ATTR_IE]) {
7371 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7372 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7373 }
7374
cee00a95
JM		 7375 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7376 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7377 if (connect.mfp != NL80211_MFP_REQUIRED &&
7378 connect.mfp != NL80211_MFP_NO)
7379 return -EINVAL;
7380 } else {
7381 connect.mfp = NL80211_MFP_NO;
7382 }
7383
b23aa676 7384 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7385 connect.channel = nl80211_get_valid_chan(
7386 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7387 if (!connect.channel)
1df4a510
JM		 7388 return -EINVAL;
7389 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7390 connect.channel_hint = nl80211_get_valid_chan(
7391 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7392 if (!connect.channel_hint)
4c476991 7393 return -EINVAL;
b23aa676
SO		 7394 }
7395
fffd0934
JB		 7396 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7397 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7398 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7399 if (IS_ERR(connkeys))
7400 return PTR_ERR(connkeys);
fffd0934
JB		 7401 }
7402
7e7c8926
BG		 7403 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7404 connect.flags |= ASSOC_REQ_DISABLE_HT;
7405
7406 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7407 memcpy(&connect.ht_capa_mask,
7408 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7409 sizeof(connect.ht_capa_mask));
7410
7411 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7412 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7413 kzfree(connkeys);
7e7c8926 7414 return -EINVAL;
b4e4f47e 7415 }
7e7c8926
BG		 7416 memcpy(&connect.ht_capa,
7417 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7418 sizeof(connect.ht_capa));
7419 }
7420
ee2aca34
JB		 7421 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7422 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7423
7424 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7425 memcpy(&connect.vht_capa_mask,
7426 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7427 sizeof(connect.vht_capa_mask));
7428
7429 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7430 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7431 kzfree(connkeys);
ee2aca34
JB		 7432 return -EINVAL;
7433 }
7434 memcpy(&connect.vht_capa,
7435 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7436 sizeof(connect.vht_capa));
7437 }
7438
bab5ab7d
AK		 7439 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7440 if (!(rdev->wiphy.features &
7441 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7442 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7443 return -EINVAL;
7444 connect.flags |= ASSOC_REQ_USE_RRM;
7445 }
7446
83739b03
JB		 7447 wdev_lock(dev->ieee80211_ptr);
7448 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7449 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7450 if (err)
b47f610b 7451 kzfree(connkeys);
b23aa676
SO		 7452 return err;
7453}
7454
7455static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7456{
4c476991
JB		 7457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7458 struct net_device *dev = info->user_ptr[1];
b23aa676 7459 u16 reason;
83739b03 7460 int ret;
b23aa676
SO		 7461
7462 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7463 reason = WLAN_REASON_DEAUTH_LEAVING;
7464 else
7465 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7466
7467 if (reason == 0)
7468 return -EINVAL;
7469
074ac8df 7470 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7471 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7472 return -EOPNOTSUPP;
b23aa676 7473
83739b03
JB		 7474 wdev_lock(dev->ieee80211_ptr);
7475 ret = cfg80211_disconnect(rdev, dev, reason, true);
7476 wdev_unlock(dev->ieee80211_ptr);
7477 return ret;
b23aa676
SO		 7478}
7479
463d0183
JB		 7480static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7481{
4c476991 7482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7483 struct net *net;
7484 int err;
7485 u32 pid;
7486
7487 if (!info->attrs[NL80211_ATTR_PID])
7488 return -EINVAL;
7489
7490 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7491
463d0183 7492 net = get_net_ns_by_pid(pid);
4c476991
JB		 7493 if (IS_ERR(net))
7494 return PTR_ERR(net);
463d0183
JB		 7495
7496 err = 0;
7497
7498 /* check if anything to do */
4c476991
JB		 7499 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7500 err = cfg80211_switch_netns(rdev, net);
463d0183 7501
463d0183 7502 put_net(net);
463d0183
JB		 7503 return err;
7504}
7505
67fbb16b
SO		 7506static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7507{
4c476991 7508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7509 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7510 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7511 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7512 struct cfg80211_pmksa pmksa;
7513
7514 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7515
7516 if (!info->attrs[NL80211_ATTR_MAC])
7517 return -EINVAL;
7518
7519 if (!info->attrs[NL80211_ATTR_PMKID])
7520 return -EINVAL;
7521
67fbb16b
SO		 7522 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7523 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7524
074ac8df 7525 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7526 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7527 return -EOPNOTSUPP;
67fbb16b
SO		 7528
7529 switch (info->genlhdr->cmd) {
7530 case NL80211_CMD_SET_PMKSA:
7531 rdev_ops = rdev->ops->set_pmksa;
7532 break;
7533 case NL80211_CMD_DEL_PMKSA:
7534 rdev_ops = rdev->ops->del_pmksa;
7535 break;
7536 default:
7537 WARN_ON(1);
7538 break;
7539 }
7540
4c476991
JB		 7541 if (!rdev_ops)
7542 return -EOPNOTSUPP;
67fbb16b 7543
4c476991 7544 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7545}
7546
7547static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7548{
4c476991
JB		 7549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7550 struct net_device *dev = info->user_ptr[1];
67fbb16b 7551
074ac8df 7552 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7553 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7554 return -EOPNOTSUPP;
67fbb16b 7555
4c476991
JB		 7556 if (!rdev->ops->flush_pmksa)
7557 return -EOPNOTSUPP;
67fbb16b 7558
e35e4d28 7559 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7560}
7561
109086ce
AN		 7562static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7563{
7564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7565 struct net_device *dev = info->user_ptr[1];
7566 u8 action_code, dialog_token;
df942e7b 7567 u32 peer_capability = 0;
109086ce
AN		 7568 u16 status_code;
7569 u8 *peer;
31fa97c5 7570 bool initiator;
109086ce
AN		 7571
7572 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7573 !rdev->ops->tdls_mgmt)
7574 return -EOPNOTSUPP;
7575
7576 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7577 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7578 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7579 !info->attrs[NL80211_ATTR_IE] ||
7580 !info->attrs[NL80211_ATTR_MAC])
7581 return -EINVAL;
7582
7583 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7584 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7585 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7586 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7587 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7588 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7589 peer_capability =
7590 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7591
e35e4d28 7592 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7593 dialog_token, status_code, peer_capability,
31fa97c5 7594 initiator,
e35e4d28
HG		 7595 nla_data(info->attrs[NL80211_ATTR_IE]),
7596 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7597}
7598
7599static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7600{
7601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7602 struct net_device *dev = info->user_ptr[1];
7603 enum nl80211_tdls_operation operation;
7604 u8 *peer;
7605
7606 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7607 !rdev->ops->tdls_oper)
7608 return -EOPNOTSUPP;
7609
7610 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7611 !info->attrs[NL80211_ATTR_MAC])
7612 return -EINVAL;
7613
7614 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7615 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7616
e35e4d28 7617 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7618}
7619
9588bbd5
JM		 7620static int nl80211_remain_on_channel(struct sk_buff *skb,
7621 struct genl_info *info)
7622{
4c476991 7623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7624 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7625 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7626 struct sk_buff *msg;
7627 void *hdr;
7628 u64 cookie;
683b6d3b 7629 u32 duration;
9588bbd5
JM		 7630 int err;
7631
7632 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7633 !info->attrs[NL80211_ATTR_DURATION])
7634 return -EINVAL;
7635
7636 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7637
ebf348fc
JB		 7638 if (!rdev->ops->remain_on_channel ||
7639 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7640 return -EOPNOTSUPP;
7641
9588bbd5 7642 /*
ebf348fc
JB		 7643 * We should be on that channel for at least a minimum amount of
7644 * time (10ms) but no longer than the driver supports.
9588bbd5 7645 */
ebf348fc 7646 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7647 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7648 return -EINVAL;
7649
683b6d3b
JB		 7650 err = nl80211_parse_chandef(rdev, info, &chandef);
7651 if (err)
7652 return err;
9588bbd5
JM		 7653
7654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7655 if (!msg)
7656 return -ENOMEM;
9588bbd5 7657
15e47304 7658 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7659 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7660 if (!hdr) {
7661 err = -ENOBUFS;
9588bbd5
JM		 7662 goto free_msg;
7663 }
7664
683b6d3b
JB		 7665 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7666 duration, &cookie);
9588bbd5
JM		 7667
7668 if (err)
7669 goto free_msg;
7670
9360ffd1
DM		 7671 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7672 goto nla_put_failure;
9588bbd5
JM		 7673
7674 genlmsg_end(msg, hdr);
4c476991
JB		 7675
7676 return genlmsg_reply(msg, info);
9588bbd5
JM		 7677
7678 nla_put_failure:
7679 err = -ENOBUFS;
7680 free_msg:
7681 nlmsg_free(msg);
9588bbd5
JM		 7682 return err;
7683}
7684
7685static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7686 struct genl_info *info)
7687{
4c476991 7688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7689 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7690 u64 cookie;
9588bbd5
JM		 7691
7692 if (!info->attrs[NL80211_ATTR_COOKIE])
7693 return -EINVAL;
7694
4c476991
JB		 7695 if (!rdev->ops->cancel_remain_on_channel)
7696 return -EOPNOTSUPP;
9588bbd5 7697
9588bbd5
JM		 7698 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7699
e35e4d28 7700 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7701}
7702
13ae75b1
JM		 7703static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7704 u8 *rates, u8 rates_len)
7705{
7706 u8 i;
7707 u32 mask = 0;
7708
7709 for (i = 0; i < rates_len; i++) {
7710 int rate = (rates[i] & 0x7f) * 5;
7711 int ridx;
7712 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7713 struct ieee80211_rate *srate =
7714 &sband->bitrates[ridx];
7715 if (rate == srate->bitrate) {
7716 mask |= 1 << ridx;
7717 break;
7718 }
7719 }
7720 if (ridx == sband->n_bitrates)
7721 return 0; /* rate not found */
7722 }
7723
7724 return mask;
7725}
7726
24db78c0
SW		 7727static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7728 u8 *rates, u8 rates_len,
7729 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7730{
7731 u8 i;
7732
7733 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7734
7735 for (i = 0; i < rates_len; i++) {
7736 int ridx, rbit;
7737
7738 ridx = rates[i] / 8;
7739 rbit = BIT(rates[i] % 8);
7740
7741 /* check validity */
910570b5 7742 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7743 return false;
7744
7745 /* check availability */
7746 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7747 mcs[ridx] |= rbit;
7748 else
7749 return false;
7750 }
7751
7752 return true;
7753}
7754
204e35a9
JD		 7755static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7756{
7757 u16 mcs_mask = 0;
7758
7759 switch (vht_mcs_map) {
7760 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7761 break;
7762 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7763 mcs_mask = 0x00FF;
7764 break;
7765 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7766 mcs_mask = 0x01FF;
7767 break;
7768 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7769 mcs_mask = 0x03FF;
7770 break;
7771 default:
7772 break;
7773 }
7774
7775 return mcs_mask;
7776}
7777
7778static void vht_build_mcs_mask(u16 vht_mcs_map,
7779 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7780{
7781 u8 nss;
7782
7783 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7784 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7785 vht_mcs_map >>= 2;
7786 }
7787}
7788
7789static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7790 struct nl80211_txrate_vht *txrate,
7791 u16 mcs[NL80211_VHT_NSS_MAX])
7792{
7793 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7794 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7795 u8 i;
7796
7797 if (!sband->vht_cap.vht_supported)
7798 return false;
7799
7800 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7801
7802 /* Build vht_mcs_mask from VHT capabilities */
7803 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7804
7805 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7806 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7807 mcs[i] = txrate->mcs[i];
7808 else
7809 return false;
7810 }
7811
7812 return true;
7813}
7814
b54452b0 7815static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7816 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7817 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7818 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7819 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7820 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7821 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7822};
7823
7824static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7825 struct genl_info *info)
7826{
7827 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7829 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7830 int rem, i;
7831 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7832 struct nlattr *tx_rates;
7833 struct ieee80211_supported_band *sband;
204e35a9 7834 u16 vht_tx_mcs_map;
13ae75b1 7835
4c476991
JB		 7836 if (!rdev->ops->set_bitrate_mask)
7837 return -EOPNOTSUPP;
13ae75b1
JM		 7838
7839 memset(&mask, 0, sizeof(mask));
7840 /* Default to all rates enabled */
7841 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7842 sband = rdev->wiphy.bands[i];
7869303b
JD		 7843
7844 if (!sband)
7845 continue;
7846
7847 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7848 memcpy(mask.control[i].ht_mcs,
7869303b 7849 sband->ht_cap.mcs.rx_mask,
d1e33e65 7850 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7851
7852 if (!sband->vht_cap.vht_supported)
7853 continue;
7854
7855 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7856 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7857 }
7858
b9243ab0
JD		 7859 /* if no rates are given set it back to the defaults */
7860 if (!info->attrs[NL80211_ATTR_TX_RATES])
7861 goto out;
7862
13ae75b1
JM		 7863 /*
7864 * The nested attribute uses enum nl80211_band as the index. This maps
7865 * directly to the enum ieee80211_band values used in cfg80211.
7866 */
24db78c0 7867 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7868 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7869 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7870 int err;
7871
4c476991
JB		 7872 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7873 return -EINVAL;
13ae75b1 7874 sband = rdev->wiphy.bands[band];
4c476991
JB		 7875 if (sband == NULL)
7876 return -EINVAL;
ae811e21
JB		 7877 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7878 nla_len(tx_rates), nl80211_txattr_policy);
7879 if (err)
7880 return err;
13ae75b1
JM		 7881 if (tb[NL80211_TXRATE_LEGACY]) {
7882 mask.control[band].legacy = rateset_to_mask(
7883 sband,
7884 nla_data(tb[NL80211_TXRATE_LEGACY]),
7885 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7886 if ((mask.control[band].legacy == 0) &&
7887 nla_len(tb[NL80211_TXRATE_LEGACY]))
7888 return -EINVAL;
24db78c0 7889 }
d1e33e65 7890 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7891 if (!ht_rateset_to_mask(
7892 sband,
d1e33e65
JD		 7893 nla_data(tb[NL80211_TXRATE_HT]),
7894 nla_len(tb[NL80211_TXRATE_HT]),
7895 mask.control[band].ht_mcs))
24db78c0
SW		 7896 return -EINVAL;
7897 }
204e35a9
JD		 7898 if (tb[NL80211_TXRATE_VHT]) {
7899 if (!vht_set_mcs_mask(
7900 sband,
7901 nla_data(tb[NL80211_TXRATE_VHT]),
7902 mask.control[band].vht_mcs))
7903 return -EINVAL;
7904 }
0b9323f6
JD		 7905 if (tb[NL80211_TXRATE_GI]) {
7906 mask.control[band].gi =
7907 nla_get_u8(tb[NL80211_TXRATE_GI]);
7908 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7909 return -EINVAL;
7910 }
24db78c0
SW		 7911
7912 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7913 /* don't allow empty legacy rates if HT or VHT
7914 * are not even supported.
7915 */
7916 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7917 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7918 return -EINVAL;
7919
7920 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7921 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7922 goto out;
7923
7924 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7925 if (mask.control[band].vht_mcs[i])
7926 goto out;
24db78c0
SW		 7927
7928 /* legacy and mcs rates may not be both empty */
204e35a9 7929 return -EINVAL;
13ae75b1
JM		 7930 }
7931 }
7932
b9243ab0 7933out:
e35e4d28 7934 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7935}
7936
2e161f78 7937static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7938{
4c476991 7939 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7940 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7941 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7942
7943 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7944 return -EINVAL;
7945
2e161f78
JB		 7946 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7947 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7948
71bbc994
JB		 7949 switch (wdev->iftype) {
7950 case NL80211_IFTYPE_STATION:
7951 case NL80211_IFTYPE_ADHOC:
7952 case NL80211_IFTYPE_P2P_CLIENT:
7953 case NL80211_IFTYPE_AP:
7954 case NL80211_IFTYPE_AP_VLAN:
7955 case NL80211_IFTYPE_MESH_POINT:
7956 case NL80211_IFTYPE_P2P_GO:
98104fde 7957 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7958 break;
7959 default:
4c476991 7960 return -EOPNOTSUPP;
71bbc994 7961 }
026331c4
JM		 7962
7963 /* not much point in registering if we can't reply */
4c476991
JB		 7964 if (!rdev->ops->mgmt_tx)
7965 return -EOPNOTSUPP;
026331c4 7966
15e47304 7967 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7968 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7969 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7970}
7971
2e161f78 7972static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7973{
4c476991 7974 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7975 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7976 struct cfg80211_chan_def chandef;
026331c4 7977 int err;
d64d373f 7978 void *hdr = NULL;
026331c4 7979 u64 cookie;
e247bd90 7980 struct sk_buff *msg = NULL;
b176e629
AO		 7981 struct cfg80211_mgmt_tx_params params = {
7982 .dont_wait_for_ack =
7983 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7984 };
026331c4 7985
683b6d3b 7986 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7987 return -EINVAL;
7988
4c476991
JB		 7989 if (!rdev->ops->mgmt_tx)
7990 return -EOPNOTSUPP;
026331c4 7991
71bbc994 7992 switch (wdev->iftype) {
ea141b75
AQ		 7993 case NL80211_IFTYPE_P2P_DEVICE:
7994 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7995 return -EINVAL;
71bbc994
JB		 7996 case NL80211_IFTYPE_STATION:
7997 case NL80211_IFTYPE_ADHOC:
7998 case NL80211_IFTYPE_P2P_CLIENT:
7999 case NL80211_IFTYPE_AP:
8000 case NL80211_IFTYPE_AP_VLAN:
8001 case NL80211_IFTYPE_MESH_POINT:
8002 case NL80211_IFTYPE_P2P_GO:
8003 break;
8004 default:
4c476991 8005 return -EOPNOTSUPP;
71bbc994 8006 }
026331c4 8007
f7ca38df 8008 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8009 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8010 return -EINVAL;
b176e629 8011 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8012
8013 /*
8014 * We should wait on the channel for at least a minimum amount
8015 * of time (10ms) but no longer than the driver supports.
8016 */
b176e629
AO		 8017 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8018 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8019 return -EINVAL;
8020
f7ca38df
JB		 8021 }
8022
b176e629 8023 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8024
b176e629 8025 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8026 return -EINVAL;
8027
b176e629 8028 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8029
ea141b75
AQ		 8030 /* get the channel if any has been specified, otherwise pass NULL to
8031 * the driver. The latter will use the current one
8032 */
8033 chandef.chan = NULL;
8034 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8035 err = nl80211_parse_chandef(rdev, info, &chandef);
8036 if (err)
8037 return err;
8038 }
8039
b176e629 8040 if (!chandef.chan && params.offchan)
ea141b75 8041 return -EINVAL;
026331c4 8042
34d22ce2
AO		 8043 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8044 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8045
8046 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8047 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8048 int i;
8049
8050 if (len % sizeof(u16))
8051 return -EINVAL;
8052
8053 params.n_csa_offsets = len / sizeof(u16);
8054 params.csa_offsets =
8055 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8056
8057 /* check that all the offsets fit the frame */
8058 for (i = 0; i < params.n_csa_offsets; i++) {
8059 if (params.csa_offsets[i] >= params.len)
8060 return -EINVAL;
8061 }
8062 }
8063
b176e629 8064 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8065 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8066 if (!msg)
8067 return -ENOMEM;
026331c4 8068
15e47304 8069 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8070 NL80211_CMD_FRAME);
cb35fba3
DC		 8071 if (!hdr) {
8072 err = -ENOBUFS;
e247bd90
JB		 8073 goto free_msg;
8074 }
026331c4 8075 }
e247bd90 8076
b176e629
AO		 8077 params.chan = chandef.chan;
8078 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8079 if (err)
8080 goto free_msg;
8081
e247bd90 8082 if (msg) {
9360ffd1
DM		 8083 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8084 goto nla_put_failure;
026331c4 8085
e247bd90
JB		 8086 genlmsg_end(msg, hdr);
8087 return genlmsg_reply(msg, info);
8088 }
8089
8090 return 0;
026331c4
JM		 8091
8092 nla_put_failure:
8093 err = -ENOBUFS;
8094 free_msg:
8095 nlmsg_free(msg);
026331c4
JM		 8096 return err;
8097}
8098
f7ca38df
JB		 8099static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8100{
8101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8102 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8103 u64 cookie;
8104
8105 if (!info->attrs[NL80211_ATTR_COOKIE])
8106 return -EINVAL;
8107
8108 if (!rdev->ops->mgmt_tx_cancel_wait)
8109 return -EOPNOTSUPP;
8110
71bbc994
JB		 8111 switch (wdev->iftype) {
8112 case NL80211_IFTYPE_STATION:
8113 case NL80211_IFTYPE_ADHOC:
8114 case NL80211_IFTYPE_P2P_CLIENT:
8115 case NL80211_IFTYPE_AP:
8116 case NL80211_IFTYPE_AP_VLAN:
8117 case NL80211_IFTYPE_P2P_GO:
98104fde 8118 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8119 break;
8120 default:
f7ca38df 8121 return -EOPNOTSUPP;
71bbc994 8122 }
f7ca38df
JB		 8123
8124 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8125
e35e4d28 8126 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8127}
8128
ffb9eb3d
KV		 8129static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8130{
4c476991 8131 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8132 struct wireless_dev *wdev;
4c476991 8133 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8134 u8 ps_state;
8135 bool state;
8136 int err;
8137
4c476991
JB		 8138 if (!info->attrs[NL80211_ATTR_PS_STATE])
8139 return -EINVAL;
ffb9eb3d
KV		 8140
8141 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8142
4c476991
JB		 8143 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8144 return -EINVAL;
ffb9eb3d
KV		 8145
8146 wdev = dev->ieee80211_ptr;
8147
4c476991
JB		 8148 if (!rdev->ops->set_power_mgmt)
8149 return -EOPNOTSUPP;
ffb9eb3d
KV		 8150
8151 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8152
8153 if (state == wdev->ps)
4c476991 8154 return 0;
ffb9eb3d 8155
e35e4d28 8156 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8157 if (!err)
8158 wdev->ps = state;
ffb9eb3d
KV		 8159 return err;
8160}
8161
8162static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8163{
4c476991 8164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8165 enum nl80211_ps_state ps_state;
8166 struct wireless_dev *wdev;
4c476991 8167 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8168 struct sk_buff *msg;
8169 void *hdr;
8170 int err;
8171
ffb9eb3d
KV		 8172 wdev = dev->ieee80211_ptr;
8173
4c476991
JB		 8174 if (!rdev->ops->set_power_mgmt)
8175 return -EOPNOTSUPP;
ffb9eb3d
KV		 8176
8177 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8178 if (!msg)
8179 return -ENOMEM;
ffb9eb3d 8180
15e47304 8181 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8182 NL80211_CMD_GET_POWER_SAVE);
8183 if (!hdr) {
4c476991 8184 err = -ENOBUFS;
ffb9eb3d
KV		 8185 goto free_msg;
8186 }
8187
8188 if (wdev->ps)
8189 ps_state = NL80211_PS_ENABLED;
8190 else
8191 ps_state = NL80211_PS_DISABLED;
8192
9360ffd1
DM		 8193 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8194 goto nla_put_failure;
ffb9eb3d
KV		 8195
8196 genlmsg_end(msg, hdr);
4c476991 8197 return genlmsg_reply(msg, info);
ffb9eb3d 8198
4c476991 8199 nla_put_failure:
ffb9eb3d 8200 err = -ENOBUFS;
4c476991 8201 free_msg:
ffb9eb3d 8202 nlmsg_free(msg);
ffb9eb3d
KV		 8203 return err;
8204}
8205
94e860f1
JB		 8206static const struct nla_policy
8207nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8208 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8209 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8210 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8211 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8212 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8213 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8214};
8215
84f10708 8216static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8217 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8218{
8219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8220 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8221 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8222
d9d8b019 8223 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8224 return -EINVAL;
8225
84f10708
TP		 8226 if (!rdev->ops->set_cqm_txe_config)
8227 return -EOPNOTSUPP;
8228
8229 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8230 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8231 return -EOPNOTSUPP;
8232
e35e4d28 8233 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8234}
8235
d6dc1a38
JO		 8236static int nl80211_set_cqm_rssi(struct genl_info *info,
8237 s32 threshold, u32 hysteresis)
8238{
4c476991 8239 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8240 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8241 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8242
8243 if (threshold > 0)
8244 return -EINVAL;
8245
1da5fcc8
JB		 8246 /* disabling - hysteresis should also be zero then */
8247 if (threshold == 0)
8248 hysteresis = 0;
d6dc1a38 8249
4c476991
JB		 8250 if (!rdev->ops->set_cqm_rssi_config)
8251 return -EOPNOTSUPP;
d6dc1a38 8252
074ac8df 8253 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8254 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8255 return -EOPNOTSUPP;
d6dc1a38 8256
e35e4d28 8257 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8258}
8259
8260static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8261{
8262 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8263 struct nlattr *cqm;
8264 int err;
8265
8266 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8267 if (!cqm)
8268 return -EINVAL;
d6dc1a38
JO		 8269
8270 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8271 nl80211_attr_cqm_policy);
8272 if (err)
1da5fcc8 8273 return err;
d6dc1a38
JO		 8274
8275 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8276 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8277 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8278 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8279
1da5fcc8
JB		 8280 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8281 }
8282
8283 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8284 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8285 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8286 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8287 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8288 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8289
8290 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8291 }
8292
8293 return -EINVAL;
d6dc1a38
JO		 8294}
8295
6e0bd6c3
RL		 8296static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8297{
8298 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8299 struct net_device *dev = info->user_ptr[1];
8300 struct ocb_setup setup = {};
8301 int err;
8302
8303 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8304 if (err)
8305 return err;
8306
8307 return cfg80211_join_ocb(rdev, dev, &setup);
8308}
8309
8310static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8311{
8312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8313 struct net_device *dev = info->user_ptr[1];
8314
8315 return cfg80211_leave_ocb(rdev, dev);
8316}
8317
29cbe68c
JB		 8318static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8319{
8320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8321 struct net_device *dev = info->user_ptr[1];
8322 struct mesh_config cfg;
c80d545d 8323 struct mesh_setup setup;
29cbe68c
JB		 8324 int err;
8325
8326 /* start with default */
8327 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8328 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8329
24bdd9f4 8330 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8331 /* and parse parameters if given */
24bdd9f4 8332 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8333 if (err)
8334 return err;
8335 }
8336
8337 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8338 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8339 return -EINVAL;
8340
c80d545d
JC		 8341 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8342 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8343
4bb62344
CYY		 8344 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8345 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8346 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8347 return -EINVAL;
8348
9bdbf04d
MP		 8349 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8350 setup.beacon_interval =
8351 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8352 if (setup.beacon_interval < 10 ||
8353 setup.beacon_interval > 10000)
8354 return -EINVAL;
8355 }
8356
8357 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8358 setup.dtim_period =
8359 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8360 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8361 return -EINVAL;
8362 }
8363
c80d545d
JC		 8364 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8365 /* parse additional setup parameters if given */
8366 err = nl80211_parse_mesh_setup(info, &setup);
8367 if (err)
8368 return err;
8369 }
8370
d37bb18a
TP		 8371 if (setup.user_mpm)
8372 cfg.auto_open_plinks = false;
8373
cc1d2806 8374 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8375 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8376 if (err)
8377 return err;
cc1d2806
JB		 8378 } else {
8379 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8380 setup.chandef.chan = NULL;
cc1d2806
JB		 8381 }
8382
ffb3cf30
AN		 8383 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8384 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8385 int n_rates =
8386 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8387 struct ieee80211_supported_band *sband;
8388
8389 if (!setup.chandef.chan)
8390 return -EINVAL;
8391
8392 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8393
8394 err = ieee80211_get_ratemask(sband, rates, n_rates,
8395 &setup.basic_rates);
8396 if (err)
8397 return err;
8398 }
8399
c80d545d 8400 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8401}
8402
8403static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8404{
8405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8406 struct net_device *dev = info->user_ptr[1];
8407
8408 return cfg80211_leave_mesh(rdev, dev);
8409}
8410
dfb89c56 8411#ifdef CONFIG_PM
bb92d199
AK		 8412static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8413 struct cfg80211_registered_device *rdev)
8414{
6abb9cb9 8415 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8416 struct nlattr *nl_pats, *nl_pat;
8417 int i, pat_len;
8418
6abb9cb9 8419 if (!wowlan->n_patterns)
bb92d199
AK		 8420 return 0;
8421
8422 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8423 if (!nl_pats)
8424 return -ENOBUFS;
8425
6abb9cb9 8426 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8427 nl_pat = nla_nest_start(msg, i + 1);
8428 if (!nl_pat)
8429 return -ENOBUFS;
6abb9cb9 8430 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8431 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8432 wowlan->patterns[i].mask) ||
50ac6607
AK		 8433 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8434 wowlan->patterns[i].pattern) ||
8435 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8436 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8437 return -ENOBUFS;
8438 nla_nest_end(msg, nl_pat);
8439 }
8440 nla_nest_end(msg, nl_pats);
8441
8442 return 0;
8443}
8444
2a0e047e
JB		 8445static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8446 struct cfg80211_wowlan_tcp *tcp)
8447{
8448 struct nlattr *nl_tcp;
8449
8450 if (!tcp)
8451 return 0;
8452
8453 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8454 if (!nl_tcp)
8455 return -ENOBUFS;
8456
8457 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8458 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8459 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8460 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8461 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8462 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8463 tcp->payload_len, tcp->payload) ||
8464 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8465 tcp->data_interval) ||
8466 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8467 tcp->wake_len, tcp->wake_data) ||
8468 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8469 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8470 return -ENOBUFS;
8471
8472 if (tcp->payload_seq.len &&
8473 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8474 sizeof(tcp->payload_seq), &tcp->payload_seq))
8475 return -ENOBUFS;
8476
8477 if (tcp->payload_tok.len &&
8478 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8479 sizeof(tcp->payload_tok) + tcp->tokens_size,
8480 &tcp->payload_tok))
8481 return -ENOBUFS;
8482
e248ad30
JB		 8483 nla_nest_end(msg, nl_tcp);
8484
2a0e047e
JB		 8485 return 0;
8486}
8487
ff1b6e69
JB		 8488static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8489{
8490 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8491 struct sk_buff *msg;
8492 void *hdr;
2a0e047e 8493 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8494
964dc9e2 8495 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8496 return -EOPNOTSUPP;
8497
6abb9cb9 8498 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8499 /* adjust size to have room for all the data */
6abb9cb9
JB		 8500 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8501 rdev->wiphy.wowlan_config->tcp->payload_len +
8502 rdev->wiphy.wowlan_config->tcp->wake_len +
8503 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8504 }
8505
8506 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8507 if (!msg)
8508 return -ENOMEM;
8509
15e47304 8510 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8511 NL80211_CMD_GET_WOWLAN);
8512 if (!hdr)
8513 goto nla_put_failure;
8514
6abb9cb9 8515 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8516 struct nlattr *nl_wowlan;
8517
8518 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8519 if (!nl_wowlan)
8520 goto nla_put_failure;
8521
6abb9cb9 8522 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8523 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8524 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8525 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8526 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8527 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8528 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8529 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8530 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8531 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8532 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8533 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8534 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8535 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8536 goto nla_put_failure;
2a0e047e 8537
bb92d199
AK		 8538 if (nl80211_send_wowlan_patterns(msg, rdev))
8539 goto nla_put_failure;
2a0e047e 8540
6abb9cb9
JB		 8541 if (nl80211_send_wowlan_tcp(msg,
8542 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8543 goto nla_put_failure;
8544
ff1b6e69
JB		 8545 nla_nest_end(msg, nl_wowlan);
8546 }
8547
8548 genlmsg_end(msg, hdr);
8549 return genlmsg_reply(msg, info);
8550
8551nla_put_failure:
8552 nlmsg_free(msg);
8553 return -ENOBUFS;
8554}
8555
2a0e047e
JB		 8556static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8557 struct nlattr *attr,
8558 struct cfg80211_wowlan *trig)
8559{
8560 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8561 struct cfg80211_wowlan_tcp *cfg;
8562 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8563 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8564 u32 size;
8565 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8566 int err, port;
8567
964dc9e2 8568 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8569 return -EINVAL;
8570
8571 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8572 nla_data(attr), nla_len(attr),
8573 nl80211_wowlan_tcp_policy);
8574 if (err)
8575 return err;
8576
8577 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8578 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8579 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8580 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8581 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8582 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8583 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8584 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8585 return -EINVAL;
8586
8587 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8588 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8589 return -EINVAL;
8590
8591 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8592 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8593 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8594 return -EINVAL;
8595
8596 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8597 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8598 return -EINVAL;
8599
8600 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8601 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8602 return -EINVAL;
8603
8604 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8605 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8606
8607 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8608 tokens_size = tokln - sizeof(*tok);
8609
8610 if (!tok->len || tokens_size % tok->len)
8611 return -EINVAL;
964dc9e2 8612 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8613 return -EINVAL;
964dc9e2 8614 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8615 return -EINVAL;
964dc9e2 8616 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8617 return -EINVAL;
964dc9e2 8618 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8619 return -EINVAL;
8620 if (tok->offset + tok->len > data_size)
8621 return -EINVAL;
8622 }
8623
8624 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8625 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8626 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8627 return -EINVAL;
8628 if (seq->len == 0 || seq->len > 4)
8629 return -EINVAL;
8630 if (seq->len + seq->offset > data_size)
8631 return -EINVAL;
8632 }
8633
8634 size = sizeof(*cfg);
8635 size += data_size;
8636 size += wake_size + wake_mask_size;
8637 size += tokens_size;
8638
8639 cfg = kzalloc(size, GFP_KERNEL);
8640 if (!cfg)
8641 return -ENOMEM;
8642 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8643 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8644 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8645 ETH_ALEN);
8646 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8647 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8648 else
8649 port = 0;
8650#ifdef CONFIG_INET
8651 /* allocate a socket and port for it and use it */
8652 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8653 IPPROTO_TCP, &cfg->sock, 1);
8654 if (err) {
8655 kfree(cfg);
8656 return err;
8657 }
8658 if (inet_csk_get_port(cfg->sock->sk, port)) {
8659 sock_release(cfg->sock);
8660 kfree(cfg);
8661 return -EADDRINUSE;
8662 }
8663 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8664#else
8665 if (!port) {
8666 kfree(cfg);
8667 return -EINVAL;
8668 }
8669 cfg->src_port = port;
8670#endif
8671
8672 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8673 cfg->payload_len = data_size;
8674 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8675 memcpy((void *)cfg->payload,
8676 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8677 data_size);
8678 if (seq)
8679 cfg->payload_seq = *seq;
8680 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8681 cfg->wake_len = wake_size;
8682 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8683 memcpy((void *)cfg->wake_data,
8684 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8685 wake_size);
8686 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8687 data_size + wake_size;
8688 memcpy((void *)cfg->wake_mask,
8689 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8690 wake_mask_size);
8691 if (tok) {
8692 cfg->tokens_size = tokens_size;
8693 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8694 }
8695
8696 trig->tcp = cfg;
8697
8698 return 0;
8699}
8700
8cd4d456
LC		 8701static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
8702 const struct wiphy_wowlan_support *wowlan,
8703 struct nlattr *attr,
8704 struct cfg80211_wowlan *trig)
8705{
8706 struct nlattr **tb;
8707 int err;
8708
8709 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
8710 if (!tb)
8711 return -ENOMEM;
8712
8713 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
8714 err = -EOPNOTSUPP;
8715 goto out;
8716 }
8717
8718 err = nla_parse(tb, NL80211_ATTR_MAX,
8719 nla_data(attr), nla_len(attr),
8720 nl80211_policy);
8721 if (err)
8722 goto out;
8723
8724 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, tb);
8725 err = PTR_ERR_OR_ZERO(trig->nd_config);
8726 if (err)
8727 trig->nd_config = NULL;
8728
8729out:
8730 kfree(tb);
8731 return err;
8732}
8733
ff1b6e69
JB		 8734static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8735{
8736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8737 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8738 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8739 struct cfg80211_wowlan *ntrig;
964dc9e2 8740 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8741 int err, i;
6abb9cb9 8742 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8743
964dc9e2 8744 if (!wowlan)
ff1b6e69
JB		 8745 return -EOPNOTSUPP;
8746
ae33bd81
JB		 8747 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8748 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8749 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8750 goto set_wakeup;
8751 }
ff1b6e69
JB		 8752
8753 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8754 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8755 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8756 nl80211_wowlan_policy);
8757 if (err)
8758 return err;
8759
8760 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8761 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8762 return -EINVAL;
8763 new_triggers.any = true;
8764 }
8765
8766 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8767 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8768 return -EINVAL;
8769 new_triggers.disconnect = true;
8770 }
8771
8772 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8773 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8774 return -EINVAL;
8775 new_triggers.magic_pkt = true;
8776 }
8777
77dbbb13
JB		 8778 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8779 return -EINVAL;
8780
8781 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8782 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8783 return -EINVAL;
8784 new_triggers.gtk_rekey_failure = true;
8785 }
8786
8787 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8788 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8789 return -EINVAL;
8790 new_triggers.eap_identity_req = true;
8791 }
8792
8793 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8794 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8795 return -EINVAL;
8796 new_triggers.four_way_handshake = true;
8797 }
8798
8799 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8800 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8801 return -EINVAL;
8802 new_triggers.rfkill_release = true;
8803 }
8804
ff1b6e69
JB		 8805 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8806 struct nlattr *pat;
8807 int n_patterns = 0;
bb92d199 8808 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8809 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8810
8811 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8812 rem)
8813 n_patterns++;
8814 if (n_patterns > wowlan->n_patterns)
8815 return -EINVAL;
8816
8817 new_triggers.patterns = kcalloc(n_patterns,
8818 sizeof(new_triggers.patterns[0]),
8819 GFP_KERNEL);
8820 if (!new_triggers.patterns)
8821 return -ENOMEM;
8822
8823 new_triggers.n_patterns = n_patterns;
8824 i = 0;
8825
8826 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8827 rem) {
922bd80f
JB		 8828 u8 *mask_pat;
8829
50ac6607
AK		 8830 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8831 nla_len(pat), NULL);
ff1b6e69 8832 err = -EINVAL;
50ac6607
AK		 8833 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8834 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8835 goto error;
50ac6607 8836 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8837 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8838 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8839 goto error;
8840 if (pat_len > wowlan->pattern_max_len ||
8841 pat_len < wowlan->pattern_min_len)
8842 goto error;
8843
50ac6607 8844 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8845 pkt_offset = 0;
8846 else
8847 pkt_offset = nla_get_u32(
50ac6607 8848 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8849 if (pkt_offset > wowlan->max_pkt_offset)
8850 goto error;
8851 new_triggers.patterns[i].pkt_offset = pkt_offset;
8852
922bd80f
JB		 8853 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8854 if (!mask_pat) {
ff1b6e69
JB		 8855 err = -ENOMEM;
8856 goto error;
8857 }
922bd80f
JB		 8858 new_triggers.patterns[i].mask = mask_pat;
8859 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8860 mask_len);
922bd80f
JB		 8861 mask_pat += mask_len;
8862 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8863 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8864 memcpy(mask_pat,
50ac6607 8865 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8866 pat_len);
8867 i++;
8868 }
8869 }
8870
2a0e047e
JB		 8871 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8872 err = nl80211_parse_wowlan_tcp(
8873 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8874 &new_triggers);
8875 if (err)
8876 goto error;
8877 }
8878
8cd4d456
LC		 8879 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
8880 err = nl80211_parse_wowlan_nd(
8881 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
8882 &new_triggers);
8883 if (err)
8884 goto error;
8885 }
8886
ae33bd81
JB		 8887 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8888 if (!ntrig) {
8889 err = -ENOMEM;
8890 goto error;
ff1b6e69 8891 }
ae33bd81 8892 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8893 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8894
ae33bd81 8895 set_wakeup:
6abb9cb9
JB		 8896 if (rdev->ops->set_wakeup &&
8897 prev_enabled != !!rdev->wiphy.wowlan_config)
8898 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8899
ff1b6e69
JB		 8900 return 0;
8901 error:
8902 for (i = 0; i < new_triggers.n_patterns; i++)
8903 kfree(new_triggers.patterns[i].mask);
8904 kfree(new_triggers.patterns);
2a0e047e
JB		 8905 if (new_triggers.tcp && new_triggers.tcp->sock)
8906 sock_release(new_triggers.tcp->sock);
8907 kfree(new_triggers.tcp);
ff1b6e69
JB		 8908 return err;
8909}
dfb89c56 8910#endif
ff1b6e69 8911
be29b99a
AK		 8912static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8913 struct cfg80211_registered_device *rdev)
8914{
8915 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8916 int i, j, pat_len;
8917 struct cfg80211_coalesce_rules *rule;
8918
8919 if (!rdev->coalesce->n_rules)
8920 return 0;
8921
8922 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8923 if (!nl_rules)
8924 return -ENOBUFS;
8925
8926 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8927 nl_rule = nla_nest_start(msg, i + 1);
8928 if (!nl_rule)
8929 return -ENOBUFS;
8930
8931 rule = &rdev->coalesce->rules[i];
8932 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8933 rule->delay))
8934 return -ENOBUFS;
8935
8936 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8937 rule->condition))
8938 return -ENOBUFS;
8939
8940 nl_pats = nla_nest_start(msg,
8941 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8942 if (!nl_pats)
8943 return -ENOBUFS;
8944
8945 for (j = 0; j < rule->n_patterns; j++) {
8946 nl_pat = nla_nest_start(msg, j + 1);
8947 if (!nl_pat)
8948 return -ENOBUFS;
8949 pat_len = rule->patterns[j].pattern_len;
8950 if (nla_put(msg, NL80211_PKTPAT_MASK,
8951 DIV_ROUND_UP(pat_len, 8),
8952 rule->patterns[j].mask) ||
8953 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8954 rule->patterns[j].pattern) ||
8955 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8956 rule->patterns[j].pkt_offset))
8957 return -ENOBUFS;
8958 nla_nest_end(msg, nl_pat);
8959 }
8960 nla_nest_end(msg, nl_pats);
8961 nla_nest_end(msg, nl_rule);
8962 }
8963 nla_nest_end(msg, nl_rules);
8964
8965 return 0;
8966}
8967
8968static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8969{
8970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8971 struct sk_buff *msg;
8972 void *hdr;
8973
8974 if (!rdev->wiphy.coalesce)
8975 return -EOPNOTSUPP;
8976
8977 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8978 if (!msg)
8979 return -ENOMEM;
8980
8981 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8982 NL80211_CMD_GET_COALESCE);
8983 if (!hdr)
8984 goto nla_put_failure;
8985
8986 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8987 goto nla_put_failure;
8988
8989 genlmsg_end(msg, hdr);
8990 return genlmsg_reply(msg, info);
8991
8992nla_put_failure:
8993 nlmsg_free(msg);
8994 return -ENOBUFS;
8995}
8996
8997void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8998{
8999 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9000 int i, j;
9001 struct cfg80211_coalesce_rules *rule;
9002
9003 if (!coalesce)
9004 return;
9005
9006 for (i = 0; i < coalesce->n_rules; i++) {
9007 rule = &coalesce->rules[i];
9008 for (j = 0; j < rule->n_patterns; j++)
9009 kfree(rule->patterns[j].mask);
9010 kfree(rule->patterns);
9011 }
9012 kfree(coalesce->rules);
9013 kfree(coalesce);
9014 rdev->coalesce = NULL;
9015}
9016
9017static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9018 struct nlattr *rule,
9019 struct cfg80211_coalesce_rules *new_rule)
9020{
9021 int err, i;
9022 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9023 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9024 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9025 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9026
9027 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9028 nla_len(rule), nl80211_coalesce_policy);
9029 if (err)
9030 return err;
9031
9032 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9033 new_rule->delay =
9034 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9035 if (new_rule->delay > coalesce->max_delay)
9036 return -EINVAL;
9037
9038 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9039 new_rule->condition =
9040 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9041 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9042 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9043 return -EINVAL;
9044
9045 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9046 return -EINVAL;
9047
9048 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9049 rem)
9050 n_patterns++;
9051 if (n_patterns > coalesce->n_patterns)
9052 return -EINVAL;
9053
9054 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9055 GFP_KERNEL);
9056 if (!new_rule->patterns)
9057 return -ENOMEM;
9058
9059 new_rule->n_patterns = n_patterns;
9060 i = 0;
9061
9062 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9063 rem) {
922bd80f
JB		 9064 u8 *mask_pat;
9065
be29b99a
AK		 9066 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9067 nla_len(pat), NULL);
9068 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9069 !pat_tb[NL80211_PKTPAT_PATTERN])
9070 return -EINVAL;
9071 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9072 mask_len = DIV_ROUND_UP(pat_len, 8);
9073 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9074 return -EINVAL;
9075 if (pat_len > coalesce->pattern_max_len ||
9076 pat_len < coalesce->pattern_min_len)
9077 return -EINVAL;
9078
9079 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9080 pkt_offset = 0;
9081 else
9082 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9083 if (pkt_offset > coalesce->max_pkt_offset)
9084 return -EINVAL;
9085 new_rule->patterns[i].pkt_offset = pkt_offset;
9086
922bd80f
JB		 9087 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9088 if (!mask_pat)
be29b99a 9089 return -ENOMEM;
922bd80f
JB		 9090
9091 new_rule->patterns[i].mask = mask_pat;
9092 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9093 mask_len);
9094
9095 mask_pat += mask_len;
9096 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9097 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9098 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9099 pat_len);
be29b99a
AK		 9100 i++;
9101 }
9102
9103 return 0;
9104}
9105
9106static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9107{
9108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9109 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9110 struct cfg80211_coalesce new_coalesce = {};
9111 struct cfg80211_coalesce *n_coalesce;
9112 int err, rem_rule, n_rules = 0, i, j;
9113 struct nlattr *rule;
9114 struct cfg80211_coalesce_rules *tmp_rule;
9115
9116 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9117 return -EOPNOTSUPP;
9118
9119 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9120 cfg80211_rdev_free_coalesce(rdev);
9121 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9122 return 0;
9123 }
9124
9125 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9126 rem_rule)
9127 n_rules++;
9128 if (n_rules > coalesce->n_rules)
9129 return -EINVAL;
9130
9131 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9132 GFP_KERNEL);
9133 if (!new_coalesce.rules)
9134 return -ENOMEM;
9135
9136 new_coalesce.n_rules = n_rules;
9137 i = 0;
9138
9139 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9140 rem_rule) {
9141 err = nl80211_parse_coalesce_rule(rdev, rule,
9142 &new_coalesce.rules[i]);
9143 if (err)
9144 goto error;
9145
9146 i++;
9147 }
9148
9149 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9150 if (err)
9151 goto error;
9152
9153 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9154 if (!n_coalesce) {
9155 err = -ENOMEM;
9156 goto error;
9157 }
9158 cfg80211_rdev_free_coalesce(rdev);
9159 rdev->coalesce = n_coalesce;
9160
9161 return 0;
9162error:
9163 for (i = 0; i < new_coalesce.n_rules; i++) {
9164 tmp_rule = &new_coalesce.rules[i];
9165 for (j = 0; j < tmp_rule->n_patterns; j++)
9166 kfree(tmp_rule->patterns[j].mask);
9167 kfree(tmp_rule->patterns);
9168 }
9169 kfree(new_coalesce.rules);
9170
9171 return err;
9172}
9173
e5497d76
JB		 9174static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9175{
9176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9177 struct net_device *dev = info->user_ptr[1];
9178 struct wireless_dev *wdev = dev->ieee80211_ptr;
9179 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9180 struct cfg80211_gtk_rekey_data rekey_data;
9181 int err;
9182
9183 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9184 return -EINVAL;
9185
9186 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9187 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9188 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9189 nl80211_rekey_policy);
9190 if (err)
9191 return err;
9192
9193 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9194 return -ERANGE;
9195 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9196 return -ERANGE;
9197 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9198 return -ERANGE;
9199
78f686ca
JB		 9200 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9201 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9202 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9203
9204 wdev_lock(wdev);
9205 if (!wdev->current_bss) {
9206 err = -ENOTCONN;
9207 goto out;
9208 }
9209
9210 if (!rdev->ops->set_rekey_data) {
9211 err = -EOPNOTSUPP;
9212 goto out;
9213 }
9214
e35e4d28 9215 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9216 out:
9217 wdev_unlock(wdev);
9218 return err;
9219}
9220
28946da7
JB		 9221static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9222 struct genl_info *info)
9223{
9224 struct net_device *dev = info->user_ptr[1];
9225 struct wireless_dev *wdev = dev->ieee80211_ptr;
9226
9227 if (wdev->iftype != NL80211_IFTYPE_AP &&
9228 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9229 return -EINVAL;
9230
15e47304 9231 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9232 return -EBUSY;
9233
15e47304 9234 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9235 return 0;
9236}
9237
7f6cf311
JB		 9238static int nl80211_probe_client(struct sk_buff *skb,
9239 struct genl_info *info)
9240{
9241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9242 struct net_device *dev = info->user_ptr[1];
9243 struct wireless_dev *wdev = dev->ieee80211_ptr;
9244 struct sk_buff *msg;
9245 void *hdr;
9246 const u8 *addr;
9247 u64 cookie;
9248 int err;
9249
9250 if (wdev->iftype != NL80211_IFTYPE_AP &&
9251 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9252 return -EOPNOTSUPP;
9253
9254 if (!info->attrs[NL80211_ATTR_MAC])
9255 return -EINVAL;
9256
9257 if (!rdev->ops->probe_client)
9258 return -EOPNOTSUPP;
9259
9260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9261 if (!msg)
9262 return -ENOMEM;
9263
15e47304 9264 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9265 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9266 if (!hdr) {
9267 err = -ENOBUFS;
7f6cf311
JB		 9268 goto free_msg;
9269 }
9270
9271 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9272
e35e4d28 9273 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9274 if (err)
9275 goto free_msg;
9276
9360ffd1
DM		 9277 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9278 goto nla_put_failure;
7f6cf311
JB		 9279
9280 genlmsg_end(msg, hdr);
9281
9282 return genlmsg_reply(msg, info);
9283
9284 nla_put_failure:
9285 err = -ENOBUFS;
9286 free_msg:
9287 nlmsg_free(msg);
9288 return err;
9289}
9290
5e760230
JB		 9291static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9292{
9293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9294 struct cfg80211_beacon_registration *reg, *nreg;
9295 int rv;
5e760230
JB		 9296
9297 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9298 return -EOPNOTSUPP;
9299
37c73b5f
BG		 9300 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9301 if (!nreg)
9302 return -ENOMEM;
9303
9304 /* First, check if already registered. */
9305 spin_lock_bh(&rdev->beacon_registrations_lock);
9306 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9307 if (reg->nlportid == info->snd_portid) {
9308 rv = -EALREADY;
9309 goto out_err;
9310 }
9311 }
9312 /* Add it to the list */
9313 nreg->nlportid = info->snd_portid;
9314 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9315
37c73b5f 9316 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9317
9318 return 0;
37c73b5f
BG		 9319out_err:
9320 spin_unlock_bh(&rdev->beacon_registrations_lock);
9321 kfree(nreg);
9322 return rv;
5e760230
JB		 9323}
9324
98104fde
JB		 9325static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9326{
9327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9328 struct wireless_dev *wdev = info->user_ptr[1];
9329 int err;
9330
9331 if (!rdev->ops->start_p2p_device)
9332 return -EOPNOTSUPP;
9333
9334 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9335 return -EOPNOTSUPP;
9336
9337 if (wdev->p2p_started)
9338 return 0;
9339
b6a55015
LC		 9340 if (rfkill_blocked(rdev->rfkill))
9341 return -ERFKILL;
98104fde 9342
eeb126e9 9343 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9344 if (err)
9345 return err;
9346
9347 wdev->p2p_started = true;
98104fde 9348 rdev->opencount++;
98104fde
JB		 9349
9350 return 0;
9351}
9352
9353static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9354{
9355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9356 struct wireless_dev *wdev = info->user_ptr[1];
9357
9358 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9359 return -EOPNOTSUPP;
9360
9361 if (!rdev->ops->stop_p2p_device)
9362 return -EOPNOTSUPP;
9363
f9f47529 9364 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9365
9366 return 0;
9367}
9368
3713b4e3
JB		 9369static int nl80211_get_protocol_features(struct sk_buff *skb,
9370 struct genl_info *info)
9371{
9372 void *hdr;
9373 struct sk_buff *msg;
9374
9375 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9376 if (!msg)
9377 return -ENOMEM;
9378
9379 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9380 NL80211_CMD_GET_PROTOCOL_FEATURES);
9381 if (!hdr)
9382 goto nla_put_failure;
9383
9384 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9385 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9386 goto nla_put_failure;
9387
9388 genlmsg_end(msg, hdr);
9389 return genlmsg_reply(msg, info);
9390
9391 nla_put_failure:
9392 kfree_skb(msg);
9393 return -ENOBUFS;
9394}
9395
355199e0
JM		 9396static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9397{
9398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9399 struct cfg80211_update_ft_ies_params ft_params;
9400 struct net_device *dev = info->user_ptr[1];
9401
9402 if (!rdev->ops->update_ft_ies)
9403 return -EOPNOTSUPP;
9404
9405 if (!info->attrs[NL80211_ATTR_MDID] ||
9406 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9407 return -EINVAL;
9408
9409 memset(&ft_params, 0, sizeof(ft_params));
9410 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9411 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9412 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9413
9414 return rdev_update_ft_ies(rdev, dev, &ft_params);
9415}
9416
5de17984
AS		 9417static int nl80211_crit_protocol_start(struct sk_buff *skb,
9418 struct genl_info *info)
9419{
9420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9421 struct wireless_dev *wdev = info->user_ptr[1];
9422 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9423 u16 duration;
9424 int ret;
9425
9426 if (!rdev->ops->crit_proto_start)
9427 return -EOPNOTSUPP;
9428
9429 if (WARN_ON(!rdev->ops->crit_proto_stop))
9430 return -EINVAL;
9431
9432 if (rdev->crit_proto_nlportid)
9433 return -EBUSY;
9434
9435 /* determine protocol if provided */
9436 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9437 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9438
9439 if (proto >= NUM_NL80211_CRIT_PROTO)
9440 return -EINVAL;
9441
9442 /* timeout must be provided */
9443 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9444 return -EINVAL;
9445
9446 duration =
9447 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9448
9449 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9450 return -ERANGE;
9451
9452 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9453 if (!ret)
9454 rdev->crit_proto_nlportid = info->snd_portid;
9455
9456 return ret;
9457}
9458
9459static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9460 struct genl_info *info)
9461{
9462 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9463 struct wireless_dev *wdev = info->user_ptr[1];
9464
9465 if (!rdev->ops->crit_proto_stop)
9466 return -EOPNOTSUPP;
9467
9468 if (rdev->crit_proto_nlportid) {
9469 rdev->crit_proto_nlportid = 0;
9470 rdev_crit_proto_stop(rdev, wdev);
9471 }
9472 return 0;
9473}
9474
ad7e718c
JB		 9475static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9476{
9477 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9478 struct wireless_dev *wdev =
9479 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9480 int i, err;
9481 u32 vid, subcmd;
9482
9483 if (!rdev->wiphy.vendor_commands)
9484 return -EOPNOTSUPP;
9485
9486 if (IS_ERR(wdev)) {
9487 err = PTR_ERR(wdev);
9488 if (err != -EINVAL)
9489 return err;
9490 wdev = NULL;
9491 } else if (wdev->wiphy != &rdev->wiphy) {
9492 return -EINVAL;
9493 }
9494
9495 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9496 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9497 return -EINVAL;
9498
9499 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9500 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9501 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9502 const struct wiphy_vendor_command *vcmd;
9503 void *data = NULL;
9504 int len = 0;
9505
9506 vcmd = &rdev->wiphy.vendor_commands[i];
9507
9508 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9509 continue;
9510
9511 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9512 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9513 if (!wdev)
9514 return -EINVAL;
9515 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9516 !wdev->netdev)
9517 return -EINVAL;
9518
9519 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9520 if (wdev->netdev &&
9521 !netif_running(wdev->netdev))
9522 return -ENETDOWN;
9523 if (!wdev->netdev && !wdev->p2p_started)
9524 return -ENETDOWN;
9525 }
9526 } else {
9527 wdev = NULL;
9528 }
9529
9530 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9531 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9532 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9533 }
9534
9535 rdev->cur_cmd_info = info;
9536 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9537 data, len);
9538 rdev->cur_cmd_info = NULL;
9539 return err;
9540 }
9541
9542 return -EOPNOTSUPP;
9543}
9544
9545struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9546 enum nl80211_commands cmd,
9547 enum nl80211_attrs attr,
9548 int approxlen)
9549{
f26cbf40 9550 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9551
9552 if (WARN_ON(!rdev->cur_cmd_info))
9553 return NULL;
9554
9555 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9556 rdev->cur_cmd_info->snd_portid,
9557 rdev->cur_cmd_info->snd_seq,
567ffc35 9558 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9559}
9560EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9561
9562int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9563{
9564 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9565 void *hdr = ((void **)skb->cb)[1];
9566 struct nlattr *data = ((void **)skb->cb)[2];
9567
bd8c78e7
JB		 9568 /* clear CB data for netlink core to own from now on */
9569 memset(skb->cb, 0, sizeof(skb->cb));
9570
ad7e718c
JB		 9571 if (WARN_ON(!rdev->cur_cmd_info)) {
9572 kfree_skb(skb);
9573 return -EINVAL;
9574 }
9575
9576 nla_nest_end(skb, data);
9577 genlmsg_end(skb, hdr);
9578 return genlmsg_reply(skb, rdev->cur_cmd_info);
9579}
9580EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9581
9582
fa9ffc74
KP		 9583static int nl80211_set_qos_map(struct sk_buff *skb,
9584 struct genl_info *info)
9585{
9586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9587 struct cfg80211_qos_map *qos_map = NULL;
9588 struct net_device *dev = info->user_ptr[1];
9589 u8 *pos, len, num_des, des_len, des;
9590 int ret;
9591
9592 if (!rdev->ops->set_qos_map)
9593 return -EOPNOTSUPP;
9594
9595 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9596 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9597 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9598
9599 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9600 len > IEEE80211_QOS_MAP_LEN_MAX)
9601 return -EINVAL;
9602
9603 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9604 if (!qos_map)
9605 return -ENOMEM;
9606
9607 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9608 if (num_des) {
9609 des_len = num_des *
9610 sizeof(struct cfg80211_dscp_exception);
9611 memcpy(qos_map->dscp_exception, pos, des_len);
9612 qos_map->num_des = num_des;
9613 for (des = 0; des < num_des; des++) {
9614 if (qos_map->dscp_exception[des].up > 7) {
9615 kfree(qos_map);
9616 return -EINVAL;
9617 }
9618 }
9619 pos += des_len;
9620 }
9621 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9622 }
9623
9624 wdev_lock(dev->ieee80211_ptr);
9625 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9626 if (!ret)
9627 ret = rdev_set_qos_map(rdev, dev, qos_map);
9628 wdev_unlock(dev->ieee80211_ptr);
9629
9630 kfree(qos_map);
9631 return ret;
9632}
9633
960d01ac
JB		 9634static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9635{
9636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9637 struct net_device *dev = info->user_ptr[1];
9638 struct wireless_dev *wdev = dev->ieee80211_ptr;
9639 const u8 *peer;
9640 u8 tsid, up;
9641 u16 admitted_time = 0;
9642 int err;
9643
723e73ac 9644 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9645 return -EOPNOTSUPP;
9646
9647 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9648 !info->attrs[NL80211_ATTR_USER_PRIO])
9649 return -EINVAL;
9650
9651 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9652 if (tsid >= IEEE80211_NUM_TIDS)
9653 return -EINVAL;
9654
9655 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9656 if (up >= IEEE80211_NUM_UPS)
9657 return -EINVAL;
9658
9659 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9660 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9661 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9662 * need more attributes for that (e.g. BA session requirement);
9663 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9664 */
9665 return -EINVAL;
9666 }
9667
9668 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9669
9670 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9671 admitted_time =
9672 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9673 if (!admitted_time)
9674 return -EINVAL;
9675 }
9676
9677 wdev_lock(wdev);
9678 switch (wdev->iftype) {
9679 case NL80211_IFTYPE_STATION:
9680 case NL80211_IFTYPE_P2P_CLIENT:
9681 if (wdev->current_bss)
9682 break;
9683 err = -ENOTCONN;
9684 goto out;
9685 default:
9686 err = -EOPNOTSUPP;
9687 goto out;
9688 }
9689
9690 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9691
9692 out:
9693 wdev_unlock(wdev);
9694 return err;
9695}
9696
9697static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9698{
9699 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9700 struct net_device *dev = info->user_ptr[1];
9701 struct wireless_dev *wdev = dev->ieee80211_ptr;
9702 const u8 *peer;
9703 u8 tsid;
9704 int err;
9705
9706 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9707 return -EINVAL;
9708
9709 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9710 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9711
9712 wdev_lock(wdev);
9713 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9714 wdev_unlock(wdev);
9715
9716 return err;
9717}
9718
1057d35e
AN		 9719static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9720 struct genl_info *info)
9721{
9722 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9723 struct net_device *dev = info->user_ptr[1];
9724 struct wireless_dev *wdev = dev->ieee80211_ptr;
9725 struct cfg80211_chan_def chandef = {};
9726 const u8 *addr;
9727 u8 oper_class;
9728 int err;
9729
9730 if (!rdev->ops->tdls_channel_switch ||
9731 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9732 return -EOPNOTSUPP;
9733
9734 switch (dev->ieee80211_ptr->iftype) {
9735 case NL80211_IFTYPE_STATION:
9736 case NL80211_IFTYPE_P2P_CLIENT:
9737 break;
9738 default:
9739 return -EOPNOTSUPP;
9740 }
9741
9742 if (!info->attrs[NL80211_ATTR_MAC] ||
9743 !info->attrs[NL80211_ATTR_OPER_CLASS])
9744 return -EINVAL;
9745
9746 err = nl80211_parse_chandef(rdev, info, &chandef);
9747 if (err)
9748 return err;
9749
9750 /*
9751 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9752 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9753 * specification is not defined for them.
9754 */
9755 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
9756 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
9757 chandef.width != NL80211_CHAN_WIDTH_20)
9758 return -EINVAL;
9759
9760 /* we will be active on the TDLS link */
9761 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
9762 return -EINVAL;
9763
9764 /* don't allow switching to DFS channels */
9765 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
9766 return -EINVAL;
9767
9768 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9769 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
9770
9771 wdev_lock(wdev);
9772 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
9773 wdev_unlock(wdev);
9774
9775 return err;
9776}
9777
9778static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
9779 struct genl_info *info)
9780{
9781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9782 struct net_device *dev = info->user_ptr[1];
9783 struct wireless_dev *wdev = dev->ieee80211_ptr;
9784 const u8 *addr;
9785
9786 if (!rdev->ops->tdls_channel_switch ||
9787 !rdev->ops->tdls_cancel_channel_switch ||
9788 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9789 return -EOPNOTSUPP;
9790
9791 switch (dev->ieee80211_ptr->iftype) {
9792 case NL80211_IFTYPE_STATION:
9793 case NL80211_IFTYPE_P2P_CLIENT:
9794 break;
9795 default:
9796 return -EOPNOTSUPP;
9797 }
9798
9799 if (!info->attrs[NL80211_ATTR_MAC])
9800 return -EINVAL;
9801
9802 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9803
9804 wdev_lock(wdev);
9805 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
9806 wdev_unlock(wdev);
9807
9808 return 0;
9809}
9810
4c476991
JB		 9811#define NL80211_FLAG_NEED_WIPHY 0x01
9812#define NL80211_FLAG_NEED_NETDEV 0x02
9813#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9814#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9815#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9816 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9817#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9818/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9819#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9820 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 9821#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 9822
f84f771d 9823static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9824 struct genl_info *info)
9825{
9826 struct cfg80211_registered_device *rdev;
89a54e48 9827 struct wireless_dev *wdev;
4c476991 9828 struct net_device *dev;
4c476991
JB		 9829 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9830
9831 if (rtnl)
9832 rtnl_lock();
9833
9834 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9835 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9836 if (IS_ERR(rdev)) {
9837 if (rtnl)
9838 rtnl_unlock();
9839 return PTR_ERR(rdev);
9840 }
9841 info->user_ptr[0] = rdev;
1bf614ef
JB		 9842 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9843 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9844 ASSERT_RTNL();
9845
89a54e48
JB		 9846 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9847 info->attrs);
9848 if (IS_ERR(wdev)) {
4c476991
JB		 9849 if (rtnl)
9850 rtnl_unlock();
89a54e48 9851 return PTR_ERR(wdev);
4c476991 9852 }
89a54e48 9853
89a54e48 9854 dev = wdev->netdev;
f26cbf40 9855 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9856
1bf614ef
JB		 9857 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9858 if (!dev) {
1bf614ef
JB		 9859 if (rtnl)
9860 rtnl_unlock();
9861 return -EINVAL;
9862 }
9863
9864 info->user_ptr[1] = dev;
9865 } else {
9866 info->user_ptr[1] = wdev;
41265714 9867 }
1bf614ef
JB		 9868
9869 if (dev) {
9870 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9871 !netif_running(dev)) {
1bf614ef
JB		 9872 if (rtnl)
9873 rtnl_unlock();
9874 return -ENETDOWN;
9875 }
9876
9877 dev_hold(dev);
98104fde
JB		 9878 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9879 if (!wdev->p2p_started) {
98104fde
JB		 9880 if (rtnl)
9881 rtnl_unlock();
9882 return -ENETDOWN;
9883 }
41265714 9884 }
89a54e48 9885
4c476991 9886 info->user_ptr[0] = rdev;
4c476991
JB		 9887 }
9888
9889 return 0;
9890}
9891
f84f771d 9892static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9893 struct genl_info *info)
9894{
1bf614ef
JB		 9895 if (info->user_ptr[1]) {
9896 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9897 struct wireless_dev *wdev = info->user_ptr[1];
9898
9899 if (wdev->netdev)
9900 dev_put(wdev->netdev);
9901 } else {
9902 dev_put(info->user_ptr[1]);
9903 }
9904 }
5393b917 9905
4c476991
JB		 9906 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9907 rtnl_unlock();
5393b917
JB		 9908
9909 /* If needed, clear the netlink message payload from the SKB
9910 * as it might contain key data that shouldn't stick around on
9911 * the heap after the SKB is freed. The netlink message header
9912 * is still needed for further processing, so leave it intact.
9913 */
9914 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
9915 struct nlmsghdr *nlh = nlmsg_hdr(skb);
9916
9917 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
9918 }
4c476991
JB		 9919}
9920
4534de83 9921static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9922 {
9923 .cmd = NL80211_CMD_GET_WIPHY,
9924 .doit = nl80211_get_wiphy,
9925 .dumpit = nl80211_dump_wiphy,
86e8cf98 9926 .done = nl80211_dump_wiphy_done,
55682965
JB		 9927 .policy = nl80211_policy,
9928 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9929 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9930 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9931 },
9932 {
9933 .cmd = NL80211_CMD_SET_WIPHY,
9934 .doit = nl80211_set_wiphy,
9935 .policy = nl80211_policy,
9936 .flags = GENL_ADMIN_PERM,
4c476991 9937 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9938 },
9939 {
9940 .cmd = NL80211_CMD_GET_INTERFACE,
9941 .doit = nl80211_get_interface,
9942 .dumpit = nl80211_dump_interface,
9943 .policy = nl80211_policy,
9944 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9945 .internal_flags = NL80211_FLAG_NEED_WDEV |
9946 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9947 },
9948 {
9949 .cmd = NL80211_CMD_SET_INTERFACE,
9950 .doit = nl80211_set_interface,
9951 .policy = nl80211_policy,
9952 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9953 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9954 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9955 },
9956 {
9957 .cmd = NL80211_CMD_NEW_INTERFACE,
9958 .doit = nl80211_new_interface,
9959 .policy = nl80211_policy,
9960 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9961 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9962 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9963 },
9964 {
9965 .cmd = NL80211_CMD_DEL_INTERFACE,
9966 .doit = nl80211_del_interface,
9967 .policy = nl80211_policy,
41ade00f 9968 .flags = GENL_ADMIN_PERM,
84efbb84 9969 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9970 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9971 },
9972 {
9973 .cmd = NL80211_CMD_GET_KEY,
9974 .doit = nl80211_get_key,
9975 .policy = nl80211_policy,
9976 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9977 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9978 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9979 },
9980 {
9981 .cmd = NL80211_CMD_SET_KEY,
9982 .doit = nl80211_set_key,
9983 .policy = nl80211_policy,
9984 .flags = GENL_ADMIN_PERM,
41265714 9985 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9986 NL80211_FLAG_NEED_RTNL |
9987 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 9988 },
9989 {
9990 .cmd = NL80211_CMD_NEW_KEY,
9991 .doit = nl80211_new_key,
9992 .policy = nl80211_policy,
9993 .flags = GENL_ADMIN_PERM,
41265714 9994 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9995 NL80211_FLAG_NEED_RTNL |
9996 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 9997 },
9998 {
9999 .cmd = NL80211_CMD_DEL_KEY,
10000 .doit = nl80211_del_key,
10001 .policy = nl80211_policy,
55682965 10002 .flags = GENL_ADMIN_PERM,
41265714 10003 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10004 NL80211_FLAG_NEED_RTNL,
55682965 10005 },
ed1b6cc7
JB		 10006 {
10007 .cmd = NL80211_CMD_SET_BEACON,
10008 .policy = nl80211_policy,
10009 .flags = GENL_ADMIN_PERM,
8860020e 10010 .doit = nl80211_set_beacon,
2b5f8b0b 10011 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10012 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10013 },
10014 {
8860020e 10015 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10016 .policy = nl80211_policy,
10017 .flags = GENL_ADMIN_PERM,
8860020e 10018 .doit = nl80211_start_ap,
2b5f8b0b 10019 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10020 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10021 },
10022 {
8860020e 10023 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10024 .policy = nl80211_policy,
10025 .flags = GENL_ADMIN_PERM,
8860020e 10026 .doit = nl80211_stop_ap,
2b5f8b0b 10027 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10028 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10029 },
5727ef1b
JB		 10030 {
10031 .cmd = NL80211_CMD_GET_STATION,
10032 .doit = nl80211_get_station,
2ec600d6 10033 .dumpit = nl80211_dump_station,
5727ef1b 10034 .policy = nl80211_policy,
4c476991
JB		 10035 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10036 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10037 },
10038 {
10039 .cmd = NL80211_CMD_SET_STATION,
10040 .doit = nl80211_set_station,
10041 .policy = nl80211_policy,
10042 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10043 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10044 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10045 },
10046 {
10047 .cmd = NL80211_CMD_NEW_STATION,
10048 .doit = nl80211_new_station,
10049 .policy = nl80211_policy,
10050 .flags = GENL_ADMIN_PERM,
41265714 10051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10052 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10053 },
10054 {
10055 .cmd = NL80211_CMD_DEL_STATION,
10056 .doit = nl80211_del_station,
10057 .policy = nl80211_policy,
2ec600d6 10058 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10059 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10060 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10061 },
10062 {
10063 .cmd = NL80211_CMD_GET_MPATH,
10064 .doit = nl80211_get_mpath,
10065 .dumpit = nl80211_dump_mpath,
10066 .policy = nl80211_policy,
10067 .flags = GENL_ADMIN_PERM,
41265714 10068 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10069 NL80211_FLAG_NEED_RTNL,
2ec600d6 10070 },
66be7d2b
HR		 10071 {
10072 .cmd = NL80211_CMD_GET_MPP,
10073 .doit = nl80211_get_mpp,
10074 .dumpit = nl80211_dump_mpp,
10075 .policy = nl80211_policy,
10076 .flags = GENL_ADMIN_PERM,
10077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10078 NL80211_FLAG_NEED_RTNL,
10079 },
2ec600d6
LCC		 10080 {
10081 .cmd = NL80211_CMD_SET_MPATH,
10082 .doit = nl80211_set_mpath,
10083 .policy = nl80211_policy,
10084 .flags = GENL_ADMIN_PERM,
41265714 10085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10086 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10087 },
10088 {
10089 .cmd = NL80211_CMD_NEW_MPATH,
10090 .doit = nl80211_new_mpath,
10091 .policy = nl80211_policy,
10092 .flags = GENL_ADMIN_PERM,
41265714 10093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10094 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10095 },
10096 {
10097 .cmd = NL80211_CMD_DEL_MPATH,
10098 .doit = nl80211_del_mpath,
10099 .policy = nl80211_policy,
9f1ba906 10100 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10102 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10103 },
10104 {
10105 .cmd = NL80211_CMD_SET_BSS,
10106 .doit = nl80211_set_bss,
10107 .policy = nl80211_policy,
b2e1b302 10108 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10109 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10110 NL80211_FLAG_NEED_RTNL,
b2e1b302 10111 },
f130347c
LR		 10112 {
10113 .cmd = NL80211_CMD_GET_REG,
10114 .doit = nl80211_get_reg,
10115 .policy = nl80211_policy,
5fe231e8 10116 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10117 /* can be retrieved by unprivileged users */
10118 },
b2e1b302
LR		 10119 {
10120 .cmd = NL80211_CMD_SET_REG,
10121 .doit = nl80211_set_reg,
10122 .policy = nl80211_policy,
10123 .flags = GENL_ADMIN_PERM,
5fe231e8 10124 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10125 },
10126 {
10127 .cmd = NL80211_CMD_REQ_SET_REG,
10128 .doit = nl80211_req_set_reg,
10129 .policy = nl80211_policy,
93da9cc1 10130 .flags = GENL_ADMIN_PERM,
10131 },
10132 {
24bdd9f4
JC		 10133 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10134 .doit = nl80211_get_mesh_config,
93da9cc1 10135 .policy = nl80211_policy,
10136 /* can be retrieved by unprivileged users */
2b5f8b0b 10137 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10138 NL80211_FLAG_NEED_RTNL,
93da9cc1 10139 },
10140 {
24bdd9f4
JC		 10141 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10142 .doit = nl80211_update_mesh_config,
93da9cc1 10143 .policy = nl80211_policy,
9aed3cc1 10144 .flags = GENL_ADMIN_PERM,
29cbe68c 10145 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10146 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10147 },
2a519311
JB		 10148 {
10149 .cmd = NL80211_CMD_TRIGGER_SCAN,
10150 .doit = nl80211_trigger_scan,
10151 .policy = nl80211_policy,
10152 .flags = GENL_ADMIN_PERM,
fd014284 10153 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10154 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10155 },
10156 {
10157 .cmd = NL80211_CMD_GET_SCAN,
10158 .policy = nl80211_policy,
10159 .dumpit = nl80211_dump_scan,
10160 },
807f8a8c
LC		 10161 {
10162 .cmd = NL80211_CMD_START_SCHED_SCAN,
10163 .doit = nl80211_start_sched_scan,
10164 .policy = nl80211_policy,
10165 .flags = GENL_ADMIN_PERM,
10166 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10167 NL80211_FLAG_NEED_RTNL,
10168 },
10169 {
10170 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10171 .doit = nl80211_stop_sched_scan,
10172 .policy = nl80211_policy,
10173 .flags = GENL_ADMIN_PERM,
10174 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10175 NL80211_FLAG_NEED_RTNL,
10176 },
636a5d36
JM		 10177 {
10178 .cmd = NL80211_CMD_AUTHENTICATE,
10179 .doit = nl80211_authenticate,
10180 .policy = nl80211_policy,
10181 .flags = GENL_ADMIN_PERM,
41265714 10182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10183 NL80211_FLAG_NEED_RTNL |
10184 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10185 },
10186 {
10187 .cmd = NL80211_CMD_ASSOCIATE,
10188 .doit = nl80211_associate,
10189 .policy = nl80211_policy,
10190 .flags = GENL_ADMIN_PERM,
41265714 10191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10192 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10193 },
10194 {
10195 .cmd = NL80211_CMD_DEAUTHENTICATE,
10196 .doit = nl80211_deauthenticate,
10197 .policy = nl80211_policy,
10198 .flags = GENL_ADMIN_PERM,
41265714 10199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10200 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10201 },
10202 {
10203 .cmd = NL80211_CMD_DISASSOCIATE,
10204 .doit = nl80211_disassociate,
10205 .policy = nl80211_policy,
10206 .flags = GENL_ADMIN_PERM,
41265714 10207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10208 NL80211_FLAG_NEED_RTNL,
636a5d36 10209 },
04a773ad
JB		 10210 {
10211 .cmd = NL80211_CMD_JOIN_IBSS,
10212 .doit = nl80211_join_ibss,
10213 .policy = nl80211_policy,
10214 .flags = GENL_ADMIN_PERM,
41265714 10215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10216 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10217 },
10218 {
10219 .cmd = NL80211_CMD_LEAVE_IBSS,
10220 .doit = nl80211_leave_ibss,
10221 .policy = nl80211_policy,
10222 .flags = GENL_ADMIN_PERM,
41265714 10223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10224 NL80211_FLAG_NEED_RTNL,
04a773ad 10225 },
aff89a9b
JB		 10226#ifdef CONFIG_NL80211_TESTMODE
10227 {
10228 .cmd = NL80211_CMD_TESTMODE,
10229 .doit = nl80211_testmode_do,
71063f0e 10230 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10231 .policy = nl80211_policy,
10232 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10233 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10234 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10235 },
10236#endif
b23aa676
SO		 10237 {
10238 .cmd = NL80211_CMD_CONNECT,
10239 .doit = nl80211_connect,
10240 .policy = nl80211_policy,
10241 .flags = GENL_ADMIN_PERM,
41265714 10242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10243 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10244 },
10245 {
10246 .cmd = NL80211_CMD_DISCONNECT,
10247 .doit = nl80211_disconnect,
10248 .policy = nl80211_policy,
10249 .flags = GENL_ADMIN_PERM,
41265714 10250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10251 NL80211_FLAG_NEED_RTNL,
b23aa676 10252 },
463d0183
JB		 10253 {
10254 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10255 .doit = nl80211_wiphy_netns,
10256 .policy = nl80211_policy,
10257 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10258 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10259 NL80211_FLAG_NEED_RTNL,
463d0183 10260 },
61fa713c
HS		 10261 {
10262 .cmd = NL80211_CMD_GET_SURVEY,
10263 .policy = nl80211_policy,
10264 .dumpit = nl80211_dump_survey,
10265 },
67fbb16b
SO		 10266 {
10267 .cmd = NL80211_CMD_SET_PMKSA,
10268 .doit = nl80211_setdel_pmksa,
10269 .policy = nl80211_policy,
10270 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10272 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10273 },
10274 {
10275 .cmd = NL80211_CMD_DEL_PMKSA,
10276 .doit = nl80211_setdel_pmksa,
10277 .policy = nl80211_policy,
10278 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10280 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10281 },
10282 {
10283 .cmd = NL80211_CMD_FLUSH_PMKSA,
10284 .doit = nl80211_flush_pmksa,
10285 .policy = nl80211_policy,
10286 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10287 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10288 NL80211_FLAG_NEED_RTNL,
67fbb16b 10289 },
9588bbd5
JM		 10290 {
10291 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10292 .doit = nl80211_remain_on_channel,
10293 .policy = nl80211_policy,
10294 .flags = GENL_ADMIN_PERM,
71bbc994 10295 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10296 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10297 },
10298 {
10299 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10300 .doit = nl80211_cancel_remain_on_channel,
10301 .policy = nl80211_policy,
10302 .flags = GENL_ADMIN_PERM,
71bbc994 10303 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10304 NL80211_FLAG_NEED_RTNL,
9588bbd5 10305 },
13ae75b1
JM		 10306 {
10307 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10308 .doit = nl80211_set_tx_bitrate_mask,
10309 .policy = nl80211_policy,
10310 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10311 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10312 NL80211_FLAG_NEED_RTNL,
13ae75b1 10313 },
026331c4 10314 {
2e161f78
JB		 10315 .cmd = NL80211_CMD_REGISTER_FRAME,
10316 .doit = nl80211_register_mgmt,
026331c4
JM		 10317 .policy = nl80211_policy,
10318 .flags = GENL_ADMIN_PERM,
71bbc994 10319 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10320 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10321 },
10322 {
2e161f78
JB		 10323 .cmd = NL80211_CMD_FRAME,
10324 .doit = nl80211_tx_mgmt,
026331c4 10325 .policy = nl80211_policy,
f7ca38df 10326 .flags = GENL_ADMIN_PERM,
71bbc994 10327 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10328 NL80211_FLAG_NEED_RTNL,
10329 },
10330 {
10331 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10332 .doit = nl80211_tx_mgmt_cancel_wait,
10333 .policy = nl80211_policy,
026331c4 10334 .flags = GENL_ADMIN_PERM,
71bbc994 10335 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10336 NL80211_FLAG_NEED_RTNL,
026331c4 10337 },
ffb9eb3d
KV		 10338 {
10339 .cmd = NL80211_CMD_SET_POWER_SAVE,
10340 .doit = nl80211_set_power_save,
10341 .policy = nl80211_policy,
10342 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10343 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10344 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10345 },
10346 {
10347 .cmd = NL80211_CMD_GET_POWER_SAVE,
10348 .doit = nl80211_get_power_save,
10349 .policy = nl80211_policy,
10350 /* can be retrieved by unprivileged users */
4c476991
JB		 10351 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10352 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10353 },
d6dc1a38
JO		 10354 {
10355 .cmd = NL80211_CMD_SET_CQM,
10356 .doit = nl80211_set_cqm,
10357 .policy = nl80211_policy,
10358 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10359 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10360 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10361 },
f444de05
JB		 10362 {
10363 .cmd = NL80211_CMD_SET_CHANNEL,
10364 .doit = nl80211_set_channel,
10365 .policy = nl80211_policy,
10366 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10367 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10368 NL80211_FLAG_NEED_RTNL,
f444de05 10369 },
e8347eba
BJ		 10370 {
10371 .cmd = NL80211_CMD_SET_WDS_PEER,
10372 .doit = nl80211_set_wds_peer,
10373 .policy = nl80211_policy,
10374 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10375 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10376 NL80211_FLAG_NEED_RTNL,
e8347eba 10377 },
29cbe68c
JB		 10378 {
10379 .cmd = NL80211_CMD_JOIN_MESH,
10380 .doit = nl80211_join_mesh,
10381 .policy = nl80211_policy,
10382 .flags = GENL_ADMIN_PERM,
10383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10384 NL80211_FLAG_NEED_RTNL,
10385 },
10386 {
10387 .cmd = NL80211_CMD_LEAVE_MESH,
10388 .doit = nl80211_leave_mesh,
10389 .policy = nl80211_policy,
10390 .flags = GENL_ADMIN_PERM,
10391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10392 NL80211_FLAG_NEED_RTNL,
10393 },
6e0bd6c3
RL		 10394 {
10395 .cmd = NL80211_CMD_JOIN_OCB,
10396 .doit = nl80211_join_ocb,
10397 .policy = nl80211_policy,
10398 .flags = GENL_ADMIN_PERM,
10399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10400 NL80211_FLAG_NEED_RTNL,
10401 },
10402 {
10403 .cmd = NL80211_CMD_LEAVE_OCB,
10404 .doit = nl80211_leave_ocb,
10405 .policy = nl80211_policy,
10406 .flags = GENL_ADMIN_PERM,
10407 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10408 NL80211_FLAG_NEED_RTNL,
10409 },
dfb89c56 10410#ifdef CONFIG_PM
ff1b6e69
JB		 10411 {
10412 .cmd = NL80211_CMD_GET_WOWLAN,
10413 .doit = nl80211_get_wowlan,
10414 .policy = nl80211_policy,
10415 /* can be retrieved by unprivileged users */
10416 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10417 NL80211_FLAG_NEED_RTNL,
10418 },
10419 {
10420 .cmd = NL80211_CMD_SET_WOWLAN,
10421 .doit = nl80211_set_wowlan,
10422 .policy = nl80211_policy,
10423 .flags = GENL_ADMIN_PERM,
10424 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10425 NL80211_FLAG_NEED_RTNL,
10426 },
dfb89c56 10427#endif
e5497d76
JB		 10428 {
10429 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10430 .doit = nl80211_set_rekey_data,
10431 .policy = nl80211_policy,
10432 .flags = GENL_ADMIN_PERM,
10433 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10434 NL80211_FLAG_NEED_RTNL |
10435 NL80211_FLAG_CLEAR_SKB,
e5497d76 10436 },
109086ce
AN		 10437 {
10438 .cmd = NL80211_CMD_TDLS_MGMT,
10439 .doit = nl80211_tdls_mgmt,
10440 .policy = nl80211_policy,
10441 .flags = GENL_ADMIN_PERM,
10442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10443 NL80211_FLAG_NEED_RTNL,
10444 },
10445 {
10446 .cmd = NL80211_CMD_TDLS_OPER,
10447 .doit = nl80211_tdls_oper,
10448 .policy = nl80211_policy,
10449 .flags = GENL_ADMIN_PERM,
10450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10451 NL80211_FLAG_NEED_RTNL,
10452 },
28946da7
JB		 10453 {
10454 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10455 .doit = nl80211_register_unexpected_frame,
10456 .policy = nl80211_policy,
10457 .flags = GENL_ADMIN_PERM,
10458 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10459 NL80211_FLAG_NEED_RTNL,
10460 },
7f6cf311
JB		 10461 {
10462 .cmd = NL80211_CMD_PROBE_CLIENT,
10463 .doit = nl80211_probe_client,
10464 .policy = nl80211_policy,
10465 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10466 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10467 NL80211_FLAG_NEED_RTNL,
10468 },
5e760230
JB		 10469 {
10470 .cmd = NL80211_CMD_REGISTER_BEACONS,
10471 .doit = nl80211_register_beacons,
10472 .policy = nl80211_policy,
10473 .flags = GENL_ADMIN_PERM,
10474 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10475 NL80211_FLAG_NEED_RTNL,
10476 },
1d9d9213
SW		 10477 {
10478 .cmd = NL80211_CMD_SET_NOACK_MAP,
10479 .doit = nl80211_set_noack_map,
10480 .policy = nl80211_policy,
10481 .flags = GENL_ADMIN_PERM,
10482 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10483 NL80211_FLAG_NEED_RTNL,
10484 },
98104fde
JB		 10485 {
10486 .cmd = NL80211_CMD_START_P2P_DEVICE,
10487 .doit = nl80211_start_p2p_device,
10488 .policy = nl80211_policy,
10489 .flags = GENL_ADMIN_PERM,
10490 .internal_flags = NL80211_FLAG_NEED_WDEV |
10491 NL80211_FLAG_NEED_RTNL,
10492 },
10493 {
10494 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10495 .doit = nl80211_stop_p2p_device,
10496 .policy = nl80211_policy,
10497 .flags = GENL_ADMIN_PERM,
10498 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10499 NL80211_FLAG_NEED_RTNL,
10500 },
f4e583c8
AQ		 10501 {
10502 .cmd = NL80211_CMD_SET_MCAST_RATE,
10503 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10504 .policy = nl80211_policy,
10505 .flags = GENL_ADMIN_PERM,
10506 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10507 NL80211_FLAG_NEED_RTNL,
10508 },
10509 {
10510 .cmd = NL80211_CMD_SET_MAC_ACL,
10511 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10512 .policy = nl80211_policy,
10513 .flags = GENL_ADMIN_PERM,
10514 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10515 NL80211_FLAG_NEED_RTNL,
10516 },
04f39047
SW		 10517 {
10518 .cmd = NL80211_CMD_RADAR_DETECT,
10519 .doit = nl80211_start_radar_detection,
10520 .policy = nl80211_policy,
10521 .flags = GENL_ADMIN_PERM,
10522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10523 NL80211_FLAG_NEED_RTNL,
10524 },
3713b4e3
JB		 10525 {
10526 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10527 .doit = nl80211_get_protocol_features,
10528 .policy = nl80211_policy,
10529 },
355199e0
JM		 10530 {
10531 .cmd = NL80211_CMD_UPDATE_FT_IES,
10532 .doit = nl80211_update_ft_ies,
10533 .policy = nl80211_policy,
10534 .flags = GENL_ADMIN_PERM,
10535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10536 NL80211_FLAG_NEED_RTNL,
10537 },
5de17984
AS		 10538 {
10539 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10540 .doit = nl80211_crit_protocol_start,
10541 .policy = nl80211_policy,
10542 .flags = GENL_ADMIN_PERM,
10543 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10544 NL80211_FLAG_NEED_RTNL,
10545 },
10546 {
10547 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10548 .doit = nl80211_crit_protocol_stop,
10549 .policy = nl80211_policy,
10550 .flags = GENL_ADMIN_PERM,
10551 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10552 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10553 },
10554 {
10555 .cmd = NL80211_CMD_GET_COALESCE,
10556 .doit = nl80211_get_coalesce,
10557 .policy = nl80211_policy,
10558 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10559 NL80211_FLAG_NEED_RTNL,
10560 },
10561 {
10562 .cmd = NL80211_CMD_SET_COALESCE,
10563 .doit = nl80211_set_coalesce,
10564 .policy = nl80211_policy,
10565 .flags = GENL_ADMIN_PERM,
10566 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10567 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10568 },
10569 {
10570 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10571 .doit = nl80211_channel_switch,
10572 .policy = nl80211_policy,
10573 .flags = GENL_ADMIN_PERM,
10574 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10575 NL80211_FLAG_NEED_RTNL,
10576 },
ad7e718c
JB		 10577 {
10578 .cmd = NL80211_CMD_VENDOR,
10579 .doit = nl80211_vendor_cmd,
10580 .policy = nl80211_policy,
10581 .flags = GENL_ADMIN_PERM,
10582 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10583 NL80211_FLAG_NEED_RTNL,
10584 },
fa9ffc74
KP		 10585 {
10586 .cmd = NL80211_CMD_SET_QOS_MAP,
10587 .doit = nl80211_set_qos_map,
10588 .policy = nl80211_policy,
10589 .flags = GENL_ADMIN_PERM,
10590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10591 NL80211_FLAG_NEED_RTNL,
10592 },
960d01ac
JB		 10593 {
10594 .cmd = NL80211_CMD_ADD_TX_TS,
10595 .doit = nl80211_add_tx_ts,
10596 .policy = nl80211_policy,
10597 .flags = GENL_ADMIN_PERM,
10598 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10599 NL80211_FLAG_NEED_RTNL,
10600 },
10601 {
10602 .cmd = NL80211_CMD_DEL_TX_TS,
10603 .doit = nl80211_del_tx_ts,
10604 .policy = nl80211_policy,
10605 .flags = GENL_ADMIN_PERM,
10606 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10607 NL80211_FLAG_NEED_RTNL,
10608 },
1057d35e
AN		 10609 {
10610 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10611 .doit = nl80211_tdls_channel_switch,
10612 .policy = nl80211_policy,
10613 .flags = GENL_ADMIN_PERM,
10614 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10615 NL80211_FLAG_NEED_RTNL,
10616 },
10617 {
10618 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10619 .doit = nl80211_tdls_cancel_channel_switch,
10620 .policy = nl80211_policy,
10621 .flags = GENL_ADMIN_PERM,
10622 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10623 NL80211_FLAG_NEED_RTNL,
10624 },
55682965 10625};
9588bbd5 10626
55682965
JB		 10627/* notification functions */
10628
3bb20556
JB		 10629void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10630 enum nl80211_commands cmd)
55682965
JB		 10631{
10632 struct sk_buff *msg;
86e8cf98 10633 struct nl80211_dump_wiphy_state state = {};
55682965 10634
3bb20556
JB		 10635 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10636 cmd != NL80211_CMD_DEL_WIPHY);
10637
fd2120ca 10638 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10639 if (!msg)
10640 return;
10641
3bb20556 10642 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10643 nlmsg_free(msg);
10644 return;
10645 }
10646
68eb5503 10647 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10648 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10649}
10650
362a415d
JB		 10651static int nl80211_add_scan_req(struct sk_buff *msg,
10652 struct cfg80211_registered_device *rdev)
10653{
10654 struct cfg80211_scan_request *req = rdev->scan_req;
10655 struct nlattr *nest;
10656 int i;
10657
10658 if (WARN_ON(!req))
10659 return 0;
10660
10661 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10662 if (!nest)
10663 goto nla_put_failure;
9360ffd1
DM		 10664 for (i = 0; i < req->n_ssids; i++) {
10665 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10666 goto nla_put_failure;
10667 }
362a415d
JB		 10668 nla_nest_end(msg, nest);
10669
10670 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10671 if (!nest)
10672 goto nla_put_failure;
9360ffd1
DM		 10673 for (i = 0; i < req->n_channels; i++) {
10674 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10675 goto nla_put_failure;
10676 }
362a415d
JB		 10677 nla_nest_end(msg, nest);
10678
9360ffd1
DM		 10679 if (req->ie &&
10680 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10681 goto nla_put_failure;
362a415d 10682
ae917c9f
JB		 10683 if (req->flags &&
10684 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10685 goto nla_put_failure;
ed473771 10686
362a415d
JB		 10687 return 0;
10688 nla_put_failure:
10689 return -ENOBUFS;
10690}
10691
a538e2d5
JB		 10692static int nl80211_send_scan_msg(struct sk_buff *msg,
10693 struct cfg80211_registered_device *rdev,
fd014284 10694 struct wireless_dev *wdev,
15e47304 10695 u32 portid, u32 seq, int flags,
a538e2d5 10696 u32 cmd)
2a519311
JB		 10697{
10698 void *hdr;
10699
15e47304 10700 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10701 if (!hdr)
10702 return -1;
10703
9360ffd1 10704 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10705 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10706 wdev->netdev->ifindex)) ||
10707 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10708 goto nla_put_failure;
2a519311 10709
362a415d
JB		 10710 /* ignore errors and send incomplete event anyway */
10711 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10712
10713 return genlmsg_end(msg, hdr);
10714
10715 nla_put_failure:
10716 genlmsg_cancel(msg, hdr);
10717 return -EMSGSIZE;
10718}
10719
807f8a8c
LC		 10720static int
10721nl80211_send_sched_scan_msg(struct sk_buff *msg,
10722 struct cfg80211_registered_device *rdev,
10723 struct net_device *netdev,
15e47304 10724 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10725{
10726 void *hdr;
10727
15e47304 10728 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10729 if (!hdr)
10730 return -1;
10731
9360ffd1
DM		 10732 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10733 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10734 goto nla_put_failure;
807f8a8c
LC		 10735
10736 return genlmsg_end(msg, hdr);
10737
10738 nla_put_failure:
10739 genlmsg_cancel(msg, hdr);
10740 return -EMSGSIZE;
10741}
10742
a538e2d5 10743void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10744 struct wireless_dev *wdev)
a538e2d5
JB		 10745{
10746 struct sk_buff *msg;
10747
58050fce 10748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10749 if (!msg)
10750 return;
10751
fd014284 10752 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10753 NL80211_CMD_TRIGGER_SCAN) < 0) {
10754 nlmsg_free(msg);
10755 return;
10756 }
10757
68eb5503 10758 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10759 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10760}
10761
f9d15d16
JB		 10762struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10763 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10764{
10765 struct sk_buff *msg;
10766
fd2120ca 10767 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10768 if (!msg)
f9d15d16 10769 return NULL;
2a519311 10770
fd014284 10771 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10772 aborted ? NL80211_CMD_SCAN_ABORTED :
10773 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10774 nlmsg_free(msg);
f9d15d16 10775 return NULL;
2a519311
JB		 10776 }
10777
f9d15d16 10778 return msg;
2a519311
JB		 10779}
10780
f9d15d16
JB		 10781void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10782 struct sk_buff *msg)
2a519311 10783{
2a519311
JB		 10784 if (!msg)
10785 return;
10786
68eb5503 10787 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10788 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10789}
10790
807f8a8c
LC		 10791void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10792 struct net_device *netdev)
10793{
10794 struct sk_buff *msg;
10795
10796 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10797 if (!msg)
10798 return;
10799
10800 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10801 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10802 nlmsg_free(msg);
10803 return;
10804 }
10805
68eb5503 10806 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10807 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10808}
10809
10810void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10811 struct net_device *netdev, u32 cmd)
10812{
10813 struct sk_buff *msg;
10814
58050fce 10815 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10816 if (!msg)
10817 return;
10818
10819 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10820 nlmsg_free(msg);
10821 return;
10822 }
10823
68eb5503 10824 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10825 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10826}
10827
73d54c9e
LR		 10828/*
10829 * This can happen on global regulatory changes or device specific settings
10830 * based on custom world regulatory domains.
10831 */
10832void nl80211_send_reg_change_event(struct regulatory_request *request)
10833{
10834 struct sk_buff *msg;
10835 void *hdr;
10836
fd2120ca 10837 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10838 if (!msg)
10839 return;
10840
10841 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10842 if (!hdr) {
10843 nlmsg_free(msg);
10844 return;
10845 }
10846
10847 /* Userspace can always count this one always being set */
9360ffd1
DM		 10848 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10849 goto nla_put_failure;
10850
10851 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10852 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10853 NL80211_REGDOM_TYPE_WORLD))
10854 goto nla_put_failure;
10855 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10856 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10857 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10858 goto nla_put_failure;
10859 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10860 request->intersect) {
10861 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10862 NL80211_REGDOM_TYPE_INTERSECTION))
10863 goto nla_put_failure;
10864 } else {
10865 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10866 NL80211_REGDOM_TYPE_COUNTRY) ||
10867 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10868 request->alpha2))
10869 goto nla_put_failure;
10870 }
10871
f4173766 10872 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10873 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10874 goto nla_put_failure;
73d54c9e 10875
3b7b72ee 10876 genlmsg_end(msg, hdr);
73d54c9e 10877
bc43b28c 10878 rcu_read_lock();
68eb5503 10879 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10880 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10881 rcu_read_unlock();
73d54c9e
LR		 10882
10883 return;
10884
10885nla_put_failure:
10886 genlmsg_cancel(msg, hdr);
10887 nlmsg_free(msg);
10888}
10889
6039f6d2
JM		 10890static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10891 struct net_device *netdev,
10892 const u8 *buf, size_t len,
b0b6aa2c
EP		 10893 enum nl80211_commands cmd, gfp_t gfp,
10894 int uapsd_queues)
6039f6d2
JM		 10895{
10896 struct sk_buff *msg;
10897 void *hdr;
10898
e6d6e342 10899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10900 if (!msg)
10901 return;
10902
10903 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10904 if (!hdr) {
10905 nlmsg_free(msg);
10906 return;
10907 }
10908
9360ffd1
DM		 10909 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10910 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10911 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10912 goto nla_put_failure;
6039f6d2 10913
b0b6aa2c
EP		 10914 if (uapsd_queues >= 0) {
10915 struct nlattr *nla_wmm =
10916 nla_nest_start(msg, NL80211_ATTR_STA_WME);
10917 if (!nla_wmm)
10918 goto nla_put_failure;
10919
10920 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
10921 uapsd_queues))
10922 goto nla_put_failure;
10923
10924 nla_nest_end(msg, nla_wmm);
10925 }
10926
3b7b72ee 10927 genlmsg_end(msg, hdr);
6039f6d2 10928
68eb5503 10929 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10930 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10931 return;
10932
10933 nla_put_failure:
10934 genlmsg_cancel(msg, hdr);
10935 nlmsg_free(msg);
10936}
10937
10938void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10939 struct net_device *netdev, const u8 *buf,
10940 size_t len, gfp_t gfp)
6039f6d2
JM		 10941{
10942 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10943 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 10944}
10945
10946void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10947 struct net_device *netdev, const u8 *buf,
b0b6aa2c 10948 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 10949{
e6d6e342 10950 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10951 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 10952}
10953
53b46b84 10954void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10955 struct net_device *netdev, const u8 *buf,
10956 size_t len, gfp_t gfp)
6039f6d2
JM		 10957{
10958 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10959 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 10960}
10961
53b46b84
JM		 10962void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10963 struct net_device *netdev, const u8 *buf,
e6d6e342 10964 size_t len, gfp_t gfp)
6039f6d2
JM		 10965{
10966 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10967 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 10968}
10969
6ff57cf8
JB		 10970void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10971 size_t len)
cf4e594e 10972{
947add36
JB		 10973 struct wireless_dev *wdev = dev->ieee80211_ptr;
10974 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10975 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10976 const struct ieee80211_mgmt *mgmt = (void *)buf;
10977 u32 cmd;
947add36 10978
6ff57cf8
JB		 10979 if (WARN_ON(len < 2))
10980 return;
cf4e594e 10981
6ff57cf8
JB		 10982 if (ieee80211_is_deauth(mgmt->frame_control))
10983 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10984 else
10985 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10986
6ff57cf8 10987 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 10988 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 10989}
6ff57cf8 10990EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10991
1b06bb40
LR		 10992static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10993 struct net_device *netdev, int cmd,
e6d6e342 10994 const u8 *addr, gfp_t gfp)
1965c853
JM		 10995{
10996 struct sk_buff *msg;
10997 void *hdr;
10998
e6d6e342 10999 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11000 if (!msg)
11001 return;
11002
11003 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11004 if (!hdr) {
11005 nlmsg_free(msg);
11006 return;
11007 }
11008
9360ffd1
DM		 11009 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11010 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11011 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11012 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11013 goto nla_put_failure;
1965c853 11014
3b7b72ee 11015 genlmsg_end(msg, hdr);
1965c853 11016
68eb5503 11017 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11018 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11019 return;
11020
11021 nla_put_failure:
11022 genlmsg_cancel(msg, hdr);
11023 nlmsg_free(msg);
11024}
11025
11026void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11027 struct net_device *netdev, const u8 *addr,
11028 gfp_t gfp)
1965c853
JM		 11029{
11030 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11031 addr, gfp);
1965c853
JM		 11032}
11033
11034void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11035 struct net_device *netdev, const u8 *addr,
11036 gfp_t gfp)
1965c853 11037{
e6d6e342
JB		 11038 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11039 addr, gfp);
1965c853
JM		 11040}
11041
b23aa676
SO		 11042void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11043 struct net_device *netdev, const u8 *bssid,
11044 const u8 *req_ie, size_t req_ie_len,
11045 const u8 *resp_ie, size_t resp_ie_len,
11046 u16 status, gfp_t gfp)
11047{
11048 struct sk_buff *msg;
11049 void *hdr;
11050
58050fce 11051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11052 if (!msg)
11053 return;
11054
11055 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11056 if (!hdr) {
11057 nlmsg_free(msg);
11058 return;
11059 }
11060
9360ffd1
DM		 11061 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11062 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11063 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11064 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11065 (req_ie &&
11066 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11067 (resp_ie &&
11068 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11069 goto nla_put_failure;
b23aa676 11070
3b7b72ee 11071 genlmsg_end(msg, hdr);
b23aa676 11072
68eb5503 11073 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11074 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11075 return;
11076
11077 nla_put_failure:
11078 genlmsg_cancel(msg, hdr);
11079 nlmsg_free(msg);
11080
11081}
11082
11083void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11084 struct net_device *netdev, const u8 *bssid,
11085 const u8 *req_ie, size_t req_ie_len,
11086 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11087{
11088 struct sk_buff *msg;
11089 void *hdr;
11090
58050fce 11091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11092 if (!msg)
11093 return;
11094
11095 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11096 if (!hdr) {
11097 nlmsg_free(msg);
11098 return;
11099 }
11100
9360ffd1
DM		 11101 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11102 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11103 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11104 (req_ie &&
11105 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11106 (resp_ie &&
11107 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11108 goto nla_put_failure;
b23aa676 11109
3b7b72ee 11110 genlmsg_end(msg, hdr);
b23aa676 11111
68eb5503 11112 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11113 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11114 return;
11115
11116 nla_put_failure:
11117 genlmsg_cancel(msg, hdr);
11118 nlmsg_free(msg);
11119
11120}
11121
11122void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11123 struct net_device *netdev, u16 reason,
667503dd 11124 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11125{
11126 struct sk_buff *msg;
11127 void *hdr;
11128
58050fce 11129 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11130 if (!msg)
11131 return;
11132
11133 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11134 if (!hdr) {
11135 nlmsg_free(msg);
11136 return;
11137 }
11138
9360ffd1
DM		 11139 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11140 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11141 (from_ap && reason &&
11142 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11143 (from_ap &&
11144 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11145 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11146 goto nla_put_failure;
b23aa676 11147
3b7b72ee 11148 genlmsg_end(msg, hdr);
b23aa676 11149
68eb5503 11150 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11151 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11152 return;
11153
11154 nla_put_failure:
11155 genlmsg_cancel(msg, hdr);
11156 nlmsg_free(msg);
11157
11158}
11159
04a773ad
JB		 11160void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11161 struct net_device *netdev, const u8 *bssid,
11162 gfp_t gfp)
11163{
11164 struct sk_buff *msg;
11165 void *hdr;
11166
fd2120ca 11167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11168 if (!msg)
11169 return;
11170
11171 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11172 if (!hdr) {
11173 nlmsg_free(msg);
11174 return;
11175 }
11176
9360ffd1
DM		 11177 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11178 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11179 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11180 goto nla_put_failure;
04a773ad 11181
3b7b72ee 11182 genlmsg_end(msg, hdr);
04a773ad 11183
68eb5503 11184 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11185 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11186 return;
11187
11188 nla_put_failure:
11189 genlmsg_cancel(msg, hdr);
11190 nlmsg_free(msg);
11191}
11192
947add36
JB		 11193void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11194 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11195{
947add36 11196 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11197 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11198 struct sk_buff *msg;
11199 void *hdr;
11200
947add36
JB		 11201 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11202 return;
11203
11204 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11205
c93b5e71
JC		 11206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11207 if (!msg)
11208 return;
11209
11210 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11211 if (!hdr) {
11212 nlmsg_free(msg);
11213 return;
11214 }
11215
9360ffd1 11216 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11217 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11218 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11219 (ie_len && ie &&
11220 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11221 goto nla_put_failure;
c93b5e71 11222
3b7b72ee 11223 genlmsg_end(msg, hdr);
c93b5e71 11224
68eb5503 11225 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11226 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11227 return;
11228
11229 nla_put_failure:
11230 genlmsg_cancel(msg, hdr);
11231 nlmsg_free(msg);
11232}
947add36 11233EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11234
a3b8b056
JM		 11235void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11236 struct net_device *netdev, const u8 *addr,
11237 enum nl80211_key_type key_type, int key_id,
e6d6e342 11238 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11239{
11240 struct sk_buff *msg;
11241 void *hdr;
11242
e6d6e342 11243 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11244 if (!msg)
11245 return;
11246
11247 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11248 if (!hdr) {
11249 nlmsg_free(msg);
11250 return;
11251 }
11252
9360ffd1
DM		 11253 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11254 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11255 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11256 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11257 (key_id != -1 &&
11258 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11259 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11260 goto nla_put_failure;
a3b8b056 11261
3b7b72ee 11262 genlmsg_end(msg, hdr);
a3b8b056 11263
68eb5503 11264 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11265 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11266 return;
11267
11268 nla_put_failure:
11269 genlmsg_cancel(msg, hdr);
11270 nlmsg_free(msg);
11271}
11272
6bad8766
LR		 11273void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11274 struct ieee80211_channel *channel_before,
11275 struct ieee80211_channel *channel_after)
11276{
11277 struct sk_buff *msg;
11278 void *hdr;
11279 struct nlattr *nl_freq;
11280
fd2120ca 11281 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11282 if (!msg)
11283 return;
11284
11285 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11286 if (!hdr) {
11287 nlmsg_free(msg);
11288 return;
11289 }
11290
11291 /*
11292 * Since we are applying the beacon hint to a wiphy we know its
11293 * wiphy_idx is valid
11294 */
9360ffd1
DM		 11295 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11296 goto nla_put_failure;
6bad8766
LR		 11297
11298 /* Before */
11299 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11300 if (!nl_freq)
11301 goto nla_put_failure;
cdc89b97 11302 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11303 goto nla_put_failure;
11304 nla_nest_end(msg, nl_freq);
11305
11306 /* After */
11307 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11308 if (!nl_freq)
11309 goto nla_put_failure;
cdc89b97 11310 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11311 goto nla_put_failure;
11312 nla_nest_end(msg, nl_freq);
11313
3b7b72ee 11314 genlmsg_end(msg, hdr);
6bad8766 11315
463d0183 11316 rcu_read_lock();
68eb5503 11317 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11318 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11319 rcu_read_unlock();
6bad8766
LR		 11320
11321 return;
11322
11323nla_put_failure:
11324 genlmsg_cancel(msg, hdr);
11325 nlmsg_free(msg);
11326}
11327
9588bbd5
JM		 11328static void nl80211_send_remain_on_chan_event(
11329 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11330 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11331 struct ieee80211_channel *chan,
9588bbd5
JM		 11332 unsigned int duration, gfp_t gfp)
11333{
11334 struct sk_buff *msg;
11335 void *hdr;
11336
11337 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11338 if (!msg)
11339 return;
11340
11341 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11342 if (!hdr) {
11343 nlmsg_free(msg);
11344 return;
11345 }
11346
9360ffd1 11347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11348 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11349 wdev->netdev->ifindex)) ||
00f53350 11350 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11351 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11352 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11353 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11354 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11355 goto nla_put_failure;
9588bbd5 11356
9360ffd1
DM		 11357 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11358 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11359 goto nla_put_failure;
9588bbd5 11360
3b7b72ee 11361 genlmsg_end(msg, hdr);
9588bbd5 11362
68eb5503 11363 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11364 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11365 return;
11366
11367 nla_put_failure:
11368 genlmsg_cancel(msg, hdr);
11369 nlmsg_free(msg);
11370}
11371
947add36
JB		 11372void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11373 struct ieee80211_channel *chan,
11374 unsigned int duration, gfp_t gfp)
9588bbd5 11375{
947add36 11376 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11377 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11378
11379 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11380 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11381 rdev, wdev, cookie, chan,
42d97a59 11382 duration, gfp);
9588bbd5 11383}
947add36 11384EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11385
947add36
JB		 11386void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11387 struct ieee80211_channel *chan,
11388 gfp_t gfp)
9588bbd5 11389{
947add36 11390 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11391 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11392
11393 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11394 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11395 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11396}
947add36 11397EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11398
947add36
JB		 11399void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11400 struct station_info *sinfo, gfp_t gfp)
98b62183 11401{
947add36 11402 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11403 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11404 struct sk_buff *msg;
11405
947add36
JB		 11406 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11407
58050fce 11408 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11409 if (!msg)
11410 return;
11411
66266b3a
JL		 11412 if (nl80211_send_station(msg, 0, 0, 0,
11413 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11414 nlmsg_free(msg);
11415 return;
11416 }
11417
68eb5503 11418 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11419 NL80211_MCGRP_MLME, gfp);
98b62183 11420}
947add36 11421EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11422
947add36 11423void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11424{
947add36 11425 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11426 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11427 struct sk_buff *msg;
11428 void *hdr;
11429
947add36
JB		 11430 trace_cfg80211_del_sta(dev, mac_addr);
11431
58050fce 11432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11433 if (!msg)
11434 return;
11435
11436 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11437 if (!hdr) {
11438 nlmsg_free(msg);
11439 return;
11440 }
11441
9360ffd1
DM		 11442 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11443 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11444 goto nla_put_failure;
ec15e68b 11445
3b7b72ee 11446 genlmsg_end(msg, hdr);
ec15e68b 11447
68eb5503 11448 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11449 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11450 return;
11451
11452 nla_put_failure:
11453 genlmsg_cancel(msg, hdr);
11454 nlmsg_free(msg);
11455}
947add36 11456EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11457
947add36
JB		 11458void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11459 enum nl80211_connect_failed_reason reason,
11460 gfp_t gfp)
ed44a951 11461{
947add36 11462 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11463 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11464 struct sk_buff *msg;
11465 void *hdr;
11466
11467 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11468 if (!msg)
11469 return;
11470
11471 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11472 if (!hdr) {
11473 nlmsg_free(msg);
11474 return;
11475 }
11476
11477 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11478 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11479 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11480 goto nla_put_failure;
11481
11482 genlmsg_end(msg, hdr);
11483
68eb5503 11484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11485 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11486 return;
11487
11488 nla_put_failure:
11489 genlmsg_cancel(msg, hdr);
11490 nlmsg_free(msg);
11491}
947add36 11492EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11493
b92ab5d8
JB		 11494static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11495 const u8 *addr, gfp_t gfp)
28946da7
JB		 11496{
11497 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11498 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11499 struct sk_buff *msg;
11500 void *hdr;
15e47304 11501 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11502
15e47304 11503 if (!nlportid)
28946da7
JB		 11504 return false;
11505
11506 msg = nlmsg_new(100, gfp);
11507 if (!msg)
11508 return true;
11509
b92ab5d8 11510 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11511 if (!hdr) {
11512 nlmsg_free(msg);
11513 return true;
11514 }
11515
9360ffd1
DM		 11516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11517 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11518 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11519 goto nla_put_failure;
28946da7 11520
9c90a9f6 11521 genlmsg_end(msg, hdr);
15e47304 11522 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11523 return true;
11524
11525 nla_put_failure:
11526 genlmsg_cancel(msg, hdr);
11527 nlmsg_free(msg);
11528 return true;
11529}
11530
947add36
JB		 11531bool cfg80211_rx_spurious_frame(struct net_device *dev,
11532 const u8 *addr, gfp_t gfp)
b92ab5d8 11533{
947add36
JB		 11534 struct wireless_dev *wdev = dev->ieee80211_ptr;
11535 bool ret;
11536
11537 trace_cfg80211_rx_spurious_frame(dev, addr);
11538
11539 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11540 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11541 trace_cfg80211_return_bool(false);
11542 return false;
11543 }
11544 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11545 addr, gfp);
11546 trace_cfg80211_return_bool(ret);
11547 return ret;
b92ab5d8 11548}
947add36 11549EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11550
947add36
JB		 11551bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11552 const u8 *addr, gfp_t gfp)
b92ab5d8 11553{
947add36
JB		 11554 struct wireless_dev *wdev = dev->ieee80211_ptr;
11555 bool ret;
11556
11557 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11558
11559 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11560 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11561 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11562 trace_cfg80211_return_bool(false);
11563 return false;
11564 }
11565 ret = __nl80211_unexpected_frame(dev,
11566 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11567 addr, gfp);
11568 trace_cfg80211_return_bool(ret);
11569 return ret;
b92ab5d8 11570}
947add36 11571EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11572
2e161f78 11573int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11574 struct wireless_dev *wdev, u32 nlportid,
804483e9 11575 int freq, int sig_dbm,
19504cf5 11576 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11577{
71bbc994 11578 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11579 struct sk_buff *msg;
11580 void *hdr;
026331c4
JM		 11581
11582 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11583 if (!msg)
11584 return -ENOMEM;
11585
2e161f78 11586 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11587 if (!hdr) {
11588 nlmsg_free(msg);
11589 return -ENOMEM;
11590 }
11591
9360ffd1 11592 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11593 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11594 netdev->ifindex)) ||
a838490b 11595 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11596 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11597 (sig_dbm &&
11598 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11599 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11600 (flags &&
11601 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11602 goto nla_put_failure;
026331c4 11603
3b7b72ee 11604 genlmsg_end(msg, hdr);
026331c4 11605
15e47304 11606 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11607
11608 nla_put_failure:
11609 genlmsg_cancel(msg, hdr);
11610 nlmsg_free(msg);
11611 return -ENOBUFS;
11612}
11613
947add36
JB		 11614void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11615 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11616{
947add36 11617 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11618 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11619 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11620 struct sk_buff *msg;
11621 void *hdr;
11622
947add36
JB		 11623 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11624
026331c4
JM		 11625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11626 if (!msg)
11627 return;
11628
2e161f78 11629 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11630 if (!hdr) {
11631 nlmsg_free(msg);
11632 return;
11633 }
11634
9360ffd1 11635 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11636 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11637 netdev->ifindex)) ||
a838490b 11638 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11639 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11640 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11641 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11642 goto nla_put_failure;
026331c4 11643
3b7b72ee 11644 genlmsg_end(msg, hdr);
026331c4 11645
68eb5503 11646 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11647 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11648 return;
11649
11650 nla_put_failure:
11651 genlmsg_cancel(msg, hdr);
11652 nlmsg_free(msg);
11653}
947add36 11654EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11655
947add36
JB		 11656void cfg80211_cqm_rssi_notify(struct net_device *dev,
11657 enum nl80211_cqm_rssi_threshold_event rssi_event,
11658 gfp_t gfp)
d6dc1a38 11659{
947add36
JB		 11660 struct wireless_dev *wdev = dev->ieee80211_ptr;
11661 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11662 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11663 struct sk_buff *msg;
11664 struct nlattr *pinfoattr;
11665 void *hdr;
11666
947add36
JB		 11667 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11668
58050fce 11669 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11670 if (!msg)
11671 return;
11672
11673 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11674 if (!hdr) {
11675 nlmsg_free(msg);
11676 return;
11677 }
11678
9360ffd1 11679 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11680 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11681 goto nla_put_failure;
d6dc1a38
JO		 11682
11683 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11684 if (!pinfoattr)
11685 goto nla_put_failure;
11686
9360ffd1
DM		 11687 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11688 rssi_event))
11689 goto nla_put_failure;
d6dc1a38
JO		 11690
11691 nla_nest_end(msg, pinfoattr);
11692
3b7b72ee 11693 genlmsg_end(msg, hdr);
d6dc1a38 11694
68eb5503 11695 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11696 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11697 return;
11698
11699 nla_put_failure:
11700 genlmsg_cancel(msg, hdr);
11701 nlmsg_free(msg);
11702}
947add36 11703EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11704
947add36
JB		 11705static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11706 struct net_device *netdev, const u8 *bssid,
11707 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11708{
11709 struct sk_buff *msg;
11710 struct nlattr *rekey_attr;
11711 void *hdr;
11712
58050fce 11713 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11714 if (!msg)
11715 return;
11716
11717 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11718 if (!hdr) {
11719 nlmsg_free(msg);
11720 return;
11721 }
11722
9360ffd1
DM		 11723 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11724 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11725 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11726 goto nla_put_failure;
e5497d76
JB		 11727
11728 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11729 if (!rekey_attr)
11730 goto nla_put_failure;
11731
9360ffd1
DM		 11732 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11733 NL80211_REPLAY_CTR_LEN, replay_ctr))
11734 goto nla_put_failure;
e5497d76
JB		 11735
11736 nla_nest_end(msg, rekey_attr);
11737
3b7b72ee 11738 genlmsg_end(msg, hdr);
e5497d76 11739
68eb5503 11740 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11741 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11742 return;
11743
11744 nla_put_failure:
11745 genlmsg_cancel(msg, hdr);
11746 nlmsg_free(msg);
11747}
11748
947add36
JB		 11749void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11750 const u8 *replay_ctr, gfp_t gfp)
11751{
11752 struct wireless_dev *wdev = dev->ieee80211_ptr;
11753 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11754 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11755
11756 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11757 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11758}
11759EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11760
11761static void
11762nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11763 struct net_device *netdev, int index,
11764 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11765{
11766 struct sk_buff *msg;
11767 struct nlattr *attr;
11768 void *hdr;
11769
58050fce 11770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11771 if (!msg)
11772 return;
11773
11774 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11775 if (!hdr) {
11776 nlmsg_free(msg);
11777 return;
11778 }
11779
9360ffd1
DM		 11780 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11781 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11782 goto nla_put_failure;
c9df56b4
JM		 11783
11784 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11785 if (!attr)
11786 goto nla_put_failure;
11787
9360ffd1
DM		 11788 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11789 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11790 (preauth &&
11791 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11792 goto nla_put_failure;
c9df56b4
JM		 11793
11794 nla_nest_end(msg, attr);
11795
3b7b72ee 11796 genlmsg_end(msg, hdr);
c9df56b4 11797
68eb5503 11798 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11799 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11800 return;
11801
11802 nla_put_failure:
11803 genlmsg_cancel(msg, hdr);
11804 nlmsg_free(msg);
11805}
11806
947add36
JB		 11807void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11808 const u8 *bssid, bool preauth, gfp_t gfp)
11809{
11810 struct wireless_dev *wdev = dev->ieee80211_ptr;
11811 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11812 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11813
11814 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11815 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11816}
11817EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11818
11819static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11820 struct net_device *netdev,
11821 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 11822 gfp_t gfp,
11823 enum nl80211_commands notif,
11824 u8 count)
5314526b
TP		 11825{
11826 struct sk_buff *msg;
11827 void *hdr;
11828
58050fce 11829 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11830 if (!msg)
11831 return;
11832
f8d7552e 11833 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 11834 if (!hdr) {
11835 nlmsg_free(msg);
11836 return;
11837 }
11838
683b6d3b
JB		 11839 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11840 goto nla_put_failure;
11841
11842 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11843 goto nla_put_failure;
5314526b 11844
f8d7552e
LC		 11845 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
11846 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
11847 goto nla_put_failure;
11848
5314526b
TP		 11849 genlmsg_end(msg, hdr);
11850
68eb5503 11851 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11852 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11853 return;
11854
11855 nla_put_failure:
11856 genlmsg_cancel(msg, hdr);
11857 nlmsg_free(msg);
11858}
11859
947add36
JB		 11860void cfg80211_ch_switch_notify(struct net_device *dev,
11861 struct cfg80211_chan_def *chandef)
84f10708 11862{
947add36
JB		 11863 struct wireless_dev *wdev = dev->ieee80211_ptr;
11864 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11865 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11866
e487eaeb 11867 ASSERT_WDEV_LOCK(wdev);
947add36 11868
e487eaeb 11869 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 11870
9e0e2961 11871 wdev->chandef = *chandef;
96f55f12 11872 wdev->preset_chandef = *chandef;
f8d7552e
LC		 11873 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
11874 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 11875}
11876EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11877
f8d7552e
LC		 11878void cfg80211_ch_switch_started_notify(struct net_device *dev,
11879 struct cfg80211_chan_def *chandef,
11880 u8 count)
11881{
11882 struct wireless_dev *wdev = dev->ieee80211_ptr;
11883 struct wiphy *wiphy = wdev->wiphy;
11884 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11885
11886 trace_cfg80211_ch_switch_started_notify(dev, chandef);
11887
11888 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
11889 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
11890}
11891EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
11892
947add36
JB		 11893void cfg80211_cqm_txe_notify(struct net_device *dev,
11894 const u8 *peer, u32 num_packets,
11895 u32 rate, u32 intvl, gfp_t gfp)
11896{
11897 struct wireless_dev *wdev = dev->ieee80211_ptr;
11898 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11899 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11900 struct sk_buff *msg;
11901 struct nlattr *pinfoattr;
11902 void *hdr;
11903
11904 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11905 if (!msg)
11906 return;
11907
11908 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11909 if (!hdr) {
11910 nlmsg_free(msg);
11911 return;
11912 }
11913
11914 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11915 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11916 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11917 goto nla_put_failure;
11918
11919 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11920 if (!pinfoattr)
11921 goto nla_put_failure;
11922
11923 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11924 goto nla_put_failure;
11925
11926 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11927 goto nla_put_failure;
11928
11929 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11930 goto nla_put_failure;
11931
11932 nla_nest_end(msg, pinfoattr);
11933
11934 genlmsg_end(msg, hdr);
11935
68eb5503 11936 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11937 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11938 return;
11939
11940 nla_put_failure:
11941 genlmsg_cancel(msg, hdr);
11942 nlmsg_free(msg);
11943}
947add36 11944EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11945
04f39047
SW		 11946void
11947nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11948 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11949 enum nl80211_radar_event event,
11950 struct net_device *netdev, gfp_t gfp)
11951{
11952 struct sk_buff *msg;
11953 void *hdr;
11954
11955 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11956 if (!msg)
11957 return;
11958
11959 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11960 if (!hdr) {
11961 nlmsg_free(msg);
11962 return;
11963 }
11964
11965 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11966 goto nla_put_failure;
11967
11968 /* NOP and radar events don't need a netdev parameter */
11969 if (netdev) {
11970 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11971
11972 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11973 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11974 goto nla_put_failure;
11975 }
11976
11977 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11978 goto nla_put_failure;
11979
11980 if (nl80211_send_chandef(msg, chandef))
11981 goto nla_put_failure;
11982
9c90a9f6 11983 genlmsg_end(msg, hdr);
04f39047 11984
68eb5503 11985 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11986 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11987 return;
11988
11989 nla_put_failure:
11990 genlmsg_cancel(msg, hdr);
11991 nlmsg_free(msg);
11992}
11993
947add36
JB		 11994void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11995 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11996{
947add36
JB		 11997 struct wireless_dev *wdev = dev->ieee80211_ptr;
11998 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11999 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 12000 struct sk_buff *msg;
12001 struct nlattr *pinfoattr;
12002 void *hdr;
12003
947add36
JB		 12004 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12005
58050fce 12006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 12007 if (!msg)
12008 return;
12009
12010 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12011 if (!hdr) {
12012 nlmsg_free(msg);
12013 return;
12014 }
12015
9360ffd1 12016 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12017 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 12018 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
12019 goto nla_put_failure;
c063dbf5
JB		 12020
12021 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
12022 if (!pinfoattr)
12023 goto nla_put_failure;
12024
9360ffd1
DM		 12025 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12026 goto nla_put_failure;
c063dbf5
JB		 12027
12028 nla_nest_end(msg, pinfoattr);
12029
3b7b72ee 12030 genlmsg_end(msg, hdr);
c063dbf5 12031
68eb5503 12032 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12033 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 12034 return;
12035
12036 nla_put_failure:
12037 genlmsg_cancel(msg, hdr);
12038 nlmsg_free(msg);
12039}
947add36 12040EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 12041
7f6cf311
JB		 12042void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12043 u64 cookie, bool acked, gfp_t gfp)
12044{
12045 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12046 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12047 struct sk_buff *msg;
12048 void *hdr;
7f6cf311 12049
4ee3e063
BL		 12050 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12051
58050fce 12052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12053
7f6cf311
JB		 12054 if (!msg)
12055 return;
12056
12057 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12058 if (!hdr) {
12059 nlmsg_free(msg);
12060 return;
12061 }
12062
9360ffd1
DM		 12063 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12064 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12065 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12066 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12067 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12068 goto nla_put_failure;
7f6cf311 12069
9c90a9f6 12070 genlmsg_end(msg, hdr);
7f6cf311 12071
68eb5503 12072 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12073 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12074 return;
12075
12076 nla_put_failure:
12077 genlmsg_cancel(msg, hdr);
12078 nlmsg_free(msg);
12079}
12080EXPORT_SYMBOL(cfg80211_probe_status);
12081
5e760230
JB		 12082void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12083 const u8 *frame, size_t len,
37c73b5f 12084 int freq, int sig_dbm)
5e760230 12085{
f26cbf40 12086 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12087 struct sk_buff *msg;
12088 void *hdr;
37c73b5f 12089 struct cfg80211_beacon_registration *reg;
5e760230 12090
4ee3e063
BL		 12091 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12092
37c73b5f
BG		 12093 spin_lock_bh(&rdev->beacon_registrations_lock);
12094 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12095 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12096 if (!msg) {
12097 spin_unlock_bh(&rdev->beacon_registrations_lock);
12098 return;
12099 }
5e760230 12100
37c73b5f
BG		 12101 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12102 if (!hdr)
12103 goto nla_put_failure;
5e760230 12104
37c73b5f
BG		 12105 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12106 (freq &&
12107 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12108 (sig_dbm &&
12109 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12110 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12111 goto nla_put_failure;
5e760230 12112
37c73b5f 12113 genlmsg_end(msg, hdr);
5e760230 12114
37c73b5f
BG		 12115 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12116 }
12117 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12118 return;
12119
12120 nla_put_failure:
37c73b5f
BG		 12121 spin_unlock_bh(&rdev->beacon_registrations_lock);
12122 if (hdr)
12123 genlmsg_cancel(msg, hdr);
5e760230
JB		 12124 nlmsg_free(msg);
12125}
12126EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12127
cd8f7cb4 12128#ifdef CONFIG_PM
8cd4d456
LC		 12129static int cfg80211_net_detect_results(struct sk_buff *msg,
12130 struct cfg80211_wowlan_wakeup *wakeup)
12131{
12132 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12133 struct nlattr *nl_results, *nl_match, *nl_freqs;
12134 int i, j;
12135
12136 nl_results = nla_nest_start(
12137 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12138 if (!nl_results)
12139 return -EMSGSIZE;
12140
12141 for (i = 0; i < nd->n_matches; i++) {
12142 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12143
12144 nl_match = nla_nest_start(msg, i);
12145 if (!nl_match)
12146 break;
12147
12148 /* The SSID attribute is optional in nl80211, but for
12149 * simplicity reasons it's always present in the
12150 * cfg80211 structure. If a driver can't pass the
12151 * SSID, that needs to be changed. A zero length SSID
12152 * is still a valid SSID (wildcard), so it cannot be
12153 * used for this purpose.
12154 */
12155 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12156 match->ssid.ssid)) {
12157 nla_nest_cancel(msg, nl_match);
12158 goto out;
12159 }
12160
12161 if (match->n_channels) {
12162 nl_freqs = nla_nest_start(
12163 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12164 if (!nl_freqs) {
12165 nla_nest_cancel(msg, nl_match);
12166 goto out;
12167 }
12168
12169 for (j = 0; j < match->n_channels; j++) {
12170 if (nla_put_u32(msg,
12171 NL80211_ATTR_WIPHY_FREQ,
12172 match->channels[j])) {
12173 nla_nest_cancel(msg, nl_freqs);
12174 nla_nest_cancel(msg, nl_match);
12175 goto out;
12176 }
12177 }
12178
12179 nla_nest_end(msg, nl_freqs);
12180 }
12181
12182 nla_nest_end(msg, nl_match);
12183 }
12184
12185out:
12186 nla_nest_end(msg, nl_results);
12187 return 0;
12188}
12189
cd8f7cb4
JB		 12190void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12191 struct cfg80211_wowlan_wakeup *wakeup,
12192 gfp_t gfp)
12193{
f26cbf40 12194 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12195 struct sk_buff *msg;
12196 void *hdr;
9c90a9f6 12197 int size = 200;
cd8f7cb4
JB		 12198
12199 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12200
12201 if (wakeup)
12202 size += wakeup->packet_present_len;
12203
12204 msg = nlmsg_new(size, gfp);
12205 if (!msg)
12206 return;
12207
12208 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12209 if (!hdr)
12210 goto free_msg;
12211
12212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12213 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12214 goto free_msg;
12215
12216 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12217 wdev->netdev->ifindex))
12218 goto free_msg;
12219
12220 if (wakeup) {
12221 struct nlattr *reasons;
12222
12223 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12224 if (!reasons)
12225 goto free_msg;
cd8f7cb4
JB		 12226
12227 if (wakeup->disconnect &&
12228 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12229 goto free_msg;
12230 if (wakeup->magic_pkt &&
12231 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12232 goto free_msg;
12233 if (wakeup->gtk_rekey_failure &&
12234 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12235 goto free_msg;
12236 if (wakeup->eap_identity_req &&
12237 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12238 goto free_msg;
12239 if (wakeup->four_way_handshake &&
12240 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12241 goto free_msg;
12242 if (wakeup->rfkill_release &&
12243 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12244 goto free_msg;
12245
12246 if (wakeup->pattern_idx >= 0 &&
12247 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12248 wakeup->pattern_idx))
12249 goto free_msg;
12250
ae917c9f
JB		 12251 if (wakeup->tcp_match &&
12252 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12253 goto free_msg;
2a0e047e 12254
ae917c9f
JB		 12255 if (wakeup->tcp_connlost &&
12256 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12257 goto free_msg;
2a0e047e 12258
ae917c9f
JB		 12259 if (wakeup->tcp_nomoretokens &&
12260 nla_put_flag(msg,
12261 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12262 goto free_msg;
2a0e047e 12263
cd8f7cb4
JB		 12264 if (wakeup->packet) {
12265 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12266 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12267
12268 if (!wakeup->packet_80211) {
12269 pkt_attr =
12270 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12271 len_attr =
12272 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12273 }
12274
12275 if (wakeup->packet_len &&
12276 nla_put_u32(msg, len_attr, wakeup->packet_len))
12277 goto free_msg;
12278
12279 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12280 wakeup->packet))
12281 goto free_msg;
12282 }
12283
8cd4d456
LC		 12284 if (wakeup->net_detect &&
12285 cfg80211_net_detect_results(msg, wakeup))
12286 goto free_msg;
12287
cd8f7cb4
JB		 12288 nla_nest_end(msg, reasons);
12289 }
12290
9c90a9f6 12291 genlmsg_end(msg, hdr);
cd8f7cb4 12292
68eb5503 12293 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12294 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12295 return;
12296
12297 free_msg:
12298 nlmsg_free(msg);
12299}
12300EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12301#endif
12302
3475b094
JM		 12303void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12304 enum nl80211_tdls_operation oper,
12305 u16 reason_code, gfp_t gfp)
12306{
12307 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12308 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12309 struct sk_buff *msg;
12310 void *hdr;
3475b094
JM		 12311
12312 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12313 reason_code);
12314
12315 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12316 if (!msg)
12317 return;
12318
12319 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12320 if (!hdr) {
12321 nlmsg_free(msg);
12322 return;
12323 }
12324
12325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12326 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12327 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12328 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12329 (reason_code > 0 &&
12330 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12331 goto nla_put_failure;
12332
9c90a9f6 12333 genlmsg_end(msg, hdr);
3475b094 12334
68eb5503 12335 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12336 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12337 return;
12338
12339 nla_put_failure:
12340 genlmsg_cancel(msg, hdr);
12341 nlmsg_free(msg);
12342}
12343EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12344
026331c4
JM		 12345static int nl80211_netlink_notify(struct notifier_block * nb,
12346 unsigned long state,
12347 void *_notify)
12348{
12349 struct netlink_notify *notify = _notify;
12350 struct cfg80211_registered_device *rdev;
12351 struct wireless_dev *wdev;
37c73b5f 12352 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12353
12354 if (state != NETLINK_URELEASE)
12355 return NOTIFY_DONE;
12356
12357 rcu_read_lock();
12358
5e760230 12359 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 12360 bool schedule_destroy_work = false;
12361
12362 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12363 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12364
78f22b6a
JB		 12365 if (wdev->owner_nlportid == notify->portid)
12366 schedule_destroy_work = true;
12367 }
12368
37c73b5f
BG		 12369 spin_lock_bh(&rdev->beacon_registrations_lock);
12370 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12371 list) {
12372 if (reg->nlportid == notify->portid) {
12373 list_del(&reg->list);
12374 kfree(reg);
12375 break;
12376 }
12377 }
12378 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12379
12380 if (schedule_destroy_work) {
12381 struct cfg80211_iface_destroy *destroy;
12382
12383 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12384 if (destroy) {
12385 destroy->nlportid = notify->portid;
12386 spin_lock(&rdev->destroy_list_lock);
12387 list_add(&destroy->list, &rdev->destroy_list);
12388 spin_unlock(&rdev->destroy_list_lock);
12389 schedule_work(&rdev->destroy_work);
12390 }
12391 }
5e760230 12392 }
026331c4
JM		 12393
12394 rcu_read_unlock();
12395
6784c7db 12396 return NOTIFY_OK;
026331c4
JM		 12397}
12398
12399static struct notifier_block nl80211_netlink_notifier = {
12400 .notifier_call = nl80211_netlink_notify,
12401};
12402
355199e0
JM		 12403void cfg80211_ft_event(struct net_device *netdev,
12404 struct cfg80211_ft_event_params *ft_event)
12405{
12406 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12407 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12408 struct sk_buff *msg;
12409 void *hdr;
355199e0
JM		 12410
12411 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12412
12413 if (!ft_event->target_ap)
12414 return;
12415
12416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12417 if (!msg)
12418 return;
12419
12420 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12421 if (!hdr)
12422 goto out;
355199e0 12423
ae917c9f
JB		 12424 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12425 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12426 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12427 goto out;
355199e0 12428
ae917c9f
JB		 12429 if (ft_event->ies &&
12430 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12431 goto out;
12432 if (ft_event->ric_ies &&
12433 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12434 ft_event->ric_ies))
12435 goto out;
355199e0 12436
9c90a9f6 12437 genlmsg_end(msg, hdr);
355199e0 12438
68eb5503 12439 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12440 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12441 return;
12442 out:
12443 nlmsg_free(msg);
355199e0
JM		 12444}
12445EXPORT_SYMBOL(cfg80211_ft_event);
12446
5de17984
AS		 12447void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12448{
12449 struct cfg80211_registered_device *rdev;
12450 struct sk_buff *msg;
12451 void *hdr;
12452 u32 nlportid;
12453
f26cbf40 12454 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12455 if (!rdev->crit_proto_nlportid)
12456 return;
12457
12458 nlportid = rdev->crit_proto_nlportid;
12459 rdev->crit_proto_nlportid = 0;
12460
12461 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12462 if (!msg)
12463 return;
12464
12465 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12466 if (!hdr)
12467 goto nla_put_failure;
12468
12469 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12470 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12471 goto nla_put_failure;
12472
12473 genlmsg_end(msg, hdr);
12474
12475 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12476 return;
12477
12478 nla_put_failure:
12479 if (hdr)
12480 genlmsg_cancel(msg, hdr);
12481 nlmsg_free(msg);
12482
12483}
12484EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12485
348baf0e
JB		 12486void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12487{
12488 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12489 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12490 struct sk_buff *msg;
12491 void *hdr;
12492
12493 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12494 if (!msg)
12495 return;
12496
12497 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12498 if (!hdr)
12499 goto out;
12500
12501 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12502 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12503 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12504 goto out;
12505
12506 genlmsg_end(msg, hdr);
12507
12508 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12509 NL80211_MCGRP_MLME, GFP_KERNEL);
12510 return;
12511 out:
12512 nlmsg_free(msg);
12513}
12514
55682965
JB		 12515/* initialisation/exit functions */
12516
12517int nl80211_init(void)
12518{
0d63cbb5 12519 int err;
55682965 12520
2a94fe48
JB		 12521 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12522 nl80211_mcgrps);
55682965
JB		 12523 if (err)
12524 return err;
12525
026331c4
JM		 12526 err = netlink_register_notifier(&nl80211_netlink_notifier);
12527 if (err)
12528 goto err_out;
12529
55682965
JB		 12530 return 0;
12531 err_out:
12532 genl_unregister_family(&nl80211_fam);
12533 return err;
12534}
12535
12536void nl80211_exit(void)
12537{
026331c4 12538 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12539 genl_unregister_family(&nl80211_fam);
12540}
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