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mac80211: keep sending peer candidate events while in listen state
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
55682965
JB		 6 */
7
8#include <linux/if.h>
9#include <linux/module.h>
10#include <linux/err.h>
5a0e3ad6 11#include <linux/slab.h>
55682965
JB		 12#include <linux/list.h>
13#include <linux/if_ether.h>
14#include <linux/ieee80211.h>
15#include <linux/nl80211.h>
16#include <linux/rtnetlink.h>
17#include <linux/netlink.h>
2a519311 18#include <linux/etherdevice.h>
463d0183 19#include <net/net_namespace.h>
55682965
JB		 20#include <net/genetlink.h>
21#include <net/cfg80211.h>
463d0183 22#include <net/sock.h>
2a0e047e 23#include <net/inet_connection_sock.h>
55682965
JB		 24#include "core.h"
25#include "nl80211.h"
b2e1b302 26#include "reg.h"
e35e4d28 27#include "rdev-ops.h"
55682965 28
5fb628e9
JM		 29static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
32 int cipher_limit);
33
f84f771d 34static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 35 struct genl_info *info);
f84f771d 36static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 37 struct genl_info *info);
38
55682965
JB		 39/* the netlink family */
40static struct genl_family nl80211_fam = {
fb4e1568
MH		 41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
55682965 45 .maxattr = NL80211_ATTR_MAX,
463d0183 46 .netnsok = true,
4c476991
JB		 47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
55682965
JB		 49};
50
2a94fe48
JB		 51/* multicast groups */
52enum nl80211_multicast_groups {
53 NL80211_MCGRP_CONFIG,
54 NL80211_MCGRP_SCAN,
55 NL80211_MCGRP_REGULATORY,
56 NL80211_MCGRP_MLME,
567ffc35 57 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
59};
60
61static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 67#ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
69#endif
70};
71
89a54e48
JB		 72/* returns ERR_PTR values */
73static struct wireless_dev *
74__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 75{
89a54e48
JB		 76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
80 u64 wdev_id;
81 int wiphy_idx = -1;
82 int ifidx = -1;
55682965 83
5fe231e8 84 ASSERT_RTNL();
55682965 85
89a54e48
JB		 86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
55682965 88
89a54e48
JB		 89 if (have_ifidx)
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 if (have_wdev_id) {
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
55682965
JB		 94 }
95
89a54e48
JB		 96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
98
99 if (wiphy_net(&rdev->wiphy) != netns)
100 continue;
101
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
103 continue;
104
89a54e48
JB		 105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
108 result = wdev;
109 break;
110 }
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 result = wdev;
113 break;
114 }
115 }
89a54e48
JB		 116
117 if (result)
118 break;
119 }
120
121 if (result)
122 return result;
123 return ERR_PTR(-ENODEV);
55682965
JB		 124}
125
a9455408 126static struct cfg80211_registered_device *
878d9ec7 127__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 128{
7fee4778
JB		 129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
a9455408 131
5fe231e8 132 ASSERT_RTNL();
a9455408 133
878d9ec7 134 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 137 return ERR_PTR(-EINVAL);
138
878d9ec7 139 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 140 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 142
89a54e48
JB		 143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
146 bool found = false;
147
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 if (tmp) {
150 /* make sure wdev exists */
89a54e48
JB		 151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
153 continue;
154 found = true;
155 break;
156 }
89a54e48
JB		 157
158 if (!found)
159 tmp = NULL;
160
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
163 rdev = tmp;
164 }
165 }
166
878d9ec7
JB		 167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 169 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 170 if (netdev) {
171 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 172 tmp = wiphy_to_rdev(
173 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 174 else
175 tmp = NULL;
176
7fee4778
JB		 177 /* not wireless device -- return error */
178 if (!tmp)
179 return ERR_PTR(-EINVAL);
180
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
184
185 rdev = tmp;
a9455408 186 }
a9455408 187 }
a9455408 188
4f7eff10
JB		 189 if (!rdev)
190 return ERR_PTR(-ENODEV);
a9455408 191
4f7eff10
JB		 192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
194
195 return rdev;
a9455408
JB		 196}
197
198/*
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
a9455408
JB		 201 *
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
204 */
205static struct cfg80211_registered_device *
4f7eff10 206cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 207{
5fe231e8 208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209}
210
55682965 211/* policy for the attributes */
8cd4d456 212static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 391 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 398 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
55682965
JB		 399};
400
e31b8213 401/* policy for the key attributes */
b54452b0 402static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 403 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 404 [NL80211_KEY_IDX] = { .type = NLA_U8 },
405 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 406 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 407 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
408 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 409 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 410 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
411};
412
413/* policy for the key default flags */
414static const struct nla_policy
415nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
416 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
417 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 418};
419
ff1b6e69
JB		 420/* policy for WoWLAN attributes */
421static const struct nla_policy
422nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
423 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
426 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 427 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 431 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 432 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 433};
434
435static const struct nla_policy
436nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
437 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
438 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
440 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
441 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
442 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
443 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
444 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
445 },
446 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
447 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
448 },
449 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
450 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
451 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 452};
453
be29b99a
AK		 454/* policy for coalesce rule attributes */
455static const struct nla_policy
456nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
457 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
458 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
459 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
460};
461
e5497d76
JB		 462/* policy for GTK rekey offload attributes */
463static const struct nla_policy
464nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
465 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
466 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
467 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
468};
469
a1f1c21c
LC		 470static const struct nla_policy
471nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 472 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 473 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 474 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 475};
476
97990a06
JB		 477static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
478 struct netlink_callback *cb,
479 struct cfg80211_registered_device **rdev,
480 struct wireless_dev **wdev)
a043897a 481{
97990a06 482 int err;
a043897a 483
97990a06 484 rtnl_lock();
a043897a 485
97990a06
JB		 486 if (!cb->args[0]) {
487 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
488 nl80211_fam.attrbuf, nl80211_fam.maxattr,
489 nl80211_policy);
490 if (err)
491 goto out_unlock;
67748893 492
97990a06
JB		 493 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
494 nl80211_fam.attrbuf);
495 if (IS_ERR(*wdev)) {
496 err = PTR_ERR(*wdev);
497 goto out_unlock;
498 }
f26cbf40 499 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 500 /* 0 is the first index - add 1 to parse only once */
501 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 502 cb->args[1] = (*wdev)->identifier;
503 } else {
c319d50b
JB		 504 /* subtract the 1 again here */
505 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 506 struct wireless_dev *tmp;
67748893 507
97990a06
JB		 508 if (!wiphy) {
509 err = -ENODEV;
510 goto out_unlock;
511 }
f26cbf40 512 *rdev = wiphy_to_rdev(wiphy);
97990a06 513 *wdev = NULL;
67748893 514
97990a06
JB		 515 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
516 if (tmp->identifier == cb->args[1]) {
517 *wdev = tmp;
518 break;
519 }
520 }
67748893 521
97990a06
JB		 522 if (!*wdev) {
523 err = -ENODEV;
524 goto out_unlock;
525 }
67748893
JB		 526 }
527
67748893 528 return 0;
97990a06 529 out_unlock:
67748893
JB		 530 rtnl_unlock();
531 return err;
532}
533
97990a06 534static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 535{
67748893
JB		 536 rtnl_unlock();
537}
538
f4a11bb0
JB		 539/* IE validation */
540static bool is_valid_ie_attr(const struct nlattr *attr)
541{
542 const u8 *pos;
543 int len;
544
545 if (!attr)
546 return true;
547
548 pos = nla_data(attr);
549 len = nla_len(attr);
550
551 while (len) {
552 u8 elemlen;
553
554 if (len < 2)
555 return false;
556 len -= 2;
557
558 elemlen = pos[1];
559 if (elemlen > len)
560 return false;
561
562 len -= elemlen;
563 pos += 2 + elemlen;
564 }
565
566 return true;
567}
568
55682965 569/* message building helper */
15e47304 570static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 571 int flags, u8 cmd)
572{
573 /* since there is no private header just add the generic one */
15e47304 574 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 575}
576
5dab3b8a 577static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 578 struct ieee80211_channel *chan,
579 bool large)
5dab3b8a 580{
ea077c1c
RL		 581 /* Some channels must be completely excluded from the
582 * list to protect old user-space tools from breaking
583 */
584 if (!large && chan->flags &
585 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
586 return 0;
587
9360ffd1
DM		 588 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
589 chan->center_freq))
590 goto nla_put_failure;
5dab3b8a 591
9360ffd1
DM		 592 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
593 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
594 goto nla_put_failure;
8fe02e16
LR		 595 if (chan->flags & IEEE80211_CHAN_NO_IR) {
596 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
597 goto nla_put_failure;
598 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
599 goto nla_put_failure;
600 }
cdc89b97
JB		 601 if (chan->flags & IEEE80211_CHAN_RADAR) {
602 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
603 goto nla_put_failure;
604 if (large) {
605 u32 time;
606
607 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
608
609 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
610 chan->dfs_state))
611 goto nla_put_failure;
612 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
613 time))
614 goto nla_put_failure;
089027e5
JD		 615 if (nla_put_u32(msg,
616 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
617 chan->dfs_cac_ms))
618 goto nla_put_failure;
cdc89b97
JB		 619 }
620 }
5dab3b8a 621
fe1abafd
JB		 622 if (large) {
623 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
624 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
625 goto nla_put_failure;
626 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
627 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
628 goto nla_put_failure;
629 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
630 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
631 goto nla_put_failure;
632 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
633 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
634 goto nla_put_failure;
570dbde1
DS		 635 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
637 goto nla_put_failure;
638 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
639 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
640 goto nla_put_failure;
ea077c1c
RL		 641 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
642 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
643 goto nla_put_failure;
644 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
645 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
646 goto nla_put_failure;
fe1abafd
JB		 647 }
648
9360ffd1
DM		 649 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
650 DBM_TO_MBM(chan->max_power)))
651 goto nla_put_failure;
5dab3b8a
LR		 652
653 return 0;
654
655 nla_put_failure:
656 return -ENOBUFS;
657}
658
55682965
JB		 659/* netlink command implementations */
660
b9454e83
JB		 661struct key_parse {
662 struct key_params p;
663 int idx;
e31b8213 664 int type;
b9454e83 665 bool def, defmgmt;
dbd2fd65 666 bool def_uni, def_multi;
b9454e83
JB		 667};
668
669static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
670{
671 struct nlattr *tb[NL80211_KEY_MAX + 1];
672 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
673 nl80211_key_policy);
674 if (err)
675 return err;
676
677 k->def = !!tb[NL80211_KEY_DEFAULT];
678 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
679
dbd2fd65
JB		 680 if (k->def) {
681 k->def_uni = true;
682 k->def_multi = true;
683 }
684 if (k->defmgmt)
685 k->def_multi = true;
686
b9454e83
JB		 687 if (tb[NL80211_KEY_IDX])
688 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
689
690 if (tb[NL80211_KEY_DATA]) {
691 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
692 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
693 }
694
695 if (tb[NL80211_KEY_SEQ]) {
696 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
697 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
698 }
699
700 if (tb[NL80211_KEY_CIPHER])
701 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
702
e31b8213
JB		 703 if (tb[NL80211_KEY_TYPE]) {
704 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
705 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
706 return -EINVAL;
707 }
708
dbd2fd65
JB		 709 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
710 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 711 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
712 tb[NL80211_KEY_DEFAULT_TYPES],
713 nl80211_key_default_policy);
dbd2fd65
JB		 714 if (err)
715 return err;
716
717 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
718 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
719 }
720
b9454e83
JB		 721 return 0;
722}
723
724static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
725{
726 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
727 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
728 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
729 }
730
731 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
732 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
733 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
734 }
735
736 if (info->attrs[NL80211_ATTR_KEY_IDX])
737 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
738
739 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
740 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
741
742 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
743 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
744
dbd2fd65
JB		 745 if (k->def) {
746 k->def_uni = true;
747 k->def_multi = true;
748 }
749 if (k->defmgmt)
750 k->def_multi = true;
751
e31b8213
JB		 752 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
753 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
754 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
755 return -EINVAL;
756 }
757
dbd2fd65
JB		 758 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
759 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
760 int err = nla_parse_nested(
761 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
762 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
763 nl80211_key_default_policy);
764 if (err)
765 return err;
766
767 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
768 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
769 }
770
b9454e83
JB		 771 return 0;
772}
773
774static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
775{
776 int err;
777
778 memset(k, 0, sizeof(*k));
779 k->idx = -1;
e31b8213 780 k->type = -1;
b9454e83
JB		 781
782 if (info->attrs[NL80211_ATTR_KEY])
783 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
784 else
785 err = nl80211_parse_key_old(info, k);
786
787 if (err)
788 return err;
789
790 if (k->def && k->defmgmt)
791 return -EINVAL;
792
dbd2fd65
JB		 793 if (k->defmgmt) {
794 if (k->def_uni || !k->def_multi)
795 return -EINVAL;
796 }
797
b9454e83
JB		 798 if (k->idx != -1) {
799 if (k->defmgmt) {
800 if (k->idx < 4 || k->idx > 5)
801 return -EINVAL;
802 } else if (k->def) {
803 if (k->idx < 0 || k->idx > 3)
804 return -EINVAL;
805 } else {
806 if (k->idx < 0 || k->idx > 5)
807 return -EINVAL;
808 }
809 }
810
811 return 0;
812}
813
fffd0934
JB		 814static struct cfg80211_cached_keys *
815nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 816 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 817{
818 struct key_parse parse;
819 struct nlattr *key;
820 struct cfg80211_cached_keys *result;
821 int rem, err, def = 0;
822
823 result = kzalloc(sizeof(*result), GFP_KERNEL);
824 if (!result)
825 return ERR_PTR(-ENOMEM);
826
827 result->def = -1;
828 result->defmgmt = -1;
829
830 nla_for_each_nested(key, keys, rem) {
831 memset(&parse, 0, sizeof(parse));
832 parse.idx = -1;
833
834 err = nl80211_parse_key_new(key, &parse);
835 if (err)
836 goto error;
837 err = -EINVAL;
838 if (!parse.p.key)
839 goto error;
840 if (parse.idx < 0 || parse.idx > 4)
841 goto error;
842 if (parse.def) {
843 if (def)
844 goto error;
845 def = 1;
846 result->def = parse.idx;
dbd2fd65
JB		 847 if (!parse.def_uni || !parse.def_multi)
848 goto error;
fffd0934
JB		 849 } else if (parse.defmgmt)
850 goto error;
851 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 852 parse.idx, false, NULL);
fffd0934
JB		 853 if (err)
854 goto error;
855 result->params[parse.idx].cipher = parse.p.cipher;
856 result->params[parse.idx].key_len = parse.p.key_len;
857 result->params[parse.idx].key = result->data[parse.idx];
858 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 859
860 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
861 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
862 if (no_ht)
863 *no_ht = true;
864 }
fffd0934
JB		 865 }
866
867 return result;
868 error:
869 kfree(result);
870 return ERR_PTR(err);
871}
872
873static int nl80211_key_allowed(struct wireless_dev *wdev)
874{
875 ASSERT_WDEV_LOCK(wdev);
876
fffd0934
JB		 877 switch (wdev->iftype) {
878 case NL80211_IFTYPE_AP:
879 case NL80211_IFTYPE_AP_VLAN:
074ac8df 880 case NL80211_IFTYPE_P2P_GO:
ff973af7 881 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 882 break;
883 case NL80211_IFTYPE_ADHOC:
fffd0934 884 case NL80211_IFTYPE_STATION:
074ac8df 885 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 886 if (!wdev->current_bss)
fffd0934
JB		 887 return -ENOLINK;
888 break;
de4fcbad 889 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 890 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 891 case NL80211_IFTYPE_MONITOR:
892 case NL80211_IFTYPE_P2P_DEVICE:
893 case NL80211_IFTYPE_WDS:
894 case NUM_NL80211_IFTYPES:
fffd0934
JB		 895 return -EINVAL;
896 }
897
898 return 0;
899}
900
664834de
JM		 901static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
902 struct nlattr *tb)
903{
904 struct ieee80211_channel *chan;
905
906 if (tb == NULL)
907 return NULL;
908 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
909 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
910 return NULL;
911 return chan;
912}
913
7527a782
JB		 914static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
915{
916 struct nlattr *nl_modes = nla_nest_start(msg, attr);
917 int i;
918
919 if (!nl_modes)
920 goto nla_put_failure;
921
922 i = 0;
923 while (ifmodes) {
9360ffd1
DM		 924 if ((ifmodes & 1) && nla_put_flag(msg, i))
925 goto nla_put_failure;
7527a782
JB		 926 ifmodes >>= 1;
927 i++;
928 }
929
930 nla_nest_end(msg, nl_modes);
931 return 0;
932
933nla_put_failure:
934 return -ENOBUFS;
935}
936
937static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 938 struct sk_buff *msg,
939 bool large)
7527a782
JB		 940{
941 struct nlattr *nl_combis;
942 int i, j;
943
944 nl_combis = nla_nest_start(msg,
945 NL80211_ATTR_INTERFACE_COMBINATIONS);
946 if (!nl_combis)
947 goto nla_put_failure;
948
949 for (i = 0; i < wiphy->n_iface_combinations; i++) {
950 const struct ieee80211_iface_combination *c;
951 struct nlattr *nl_combi, *nl_limits;
952
953 c = &wiphy->iface_combinations[i];
954
955 nl_combi = nla_nest_start(msg, i + 1);
956 if (!nl_combi)
957 goto nla_put_failure;
958
959 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
960 if (!nl_limits)
961 goto nla_put_failure;
962
963 for (j = 0; j < c->n_limits; j++) {
964 struct nlattr *nl_limit;
965
966 nl_limit = nla_nest_start(msg, j + 1);
967 if (!nl_limit)
968 goto nla_put_failure;
9360ffd1
DM		 969 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
970 c->limits[j].max))
971 goto nla_put_failure;
7527a782
JB		 972 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
973 c->limits[j].types))
974 goto nla_put_failure;
975 nla_nest_end(msg, nl_limit);
976 }
977
978 nla_nest_end(msg, nl_limits);
979
9360ffd1
DM		 980 if (c->beacon_int_infra_match &&
981 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
982 goto nla_put_failure;
983 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
984 c->num_different_channels) ||
985 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
986 c->max_interfaces))
987 goto nla_put_failure;
cdc89b97 988 if (large &&
8c48b50a
FF		 989 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
990 c->radar_detect_widths) ||
991 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
992 c->radar_detect_regions)))
cdc89b97 993 goto nla_put_failure;
7527a782
JB		 994
995 nla_nest_end(msg, nl_combi);
996 }
997
998 nla_nest_end(msg, nl_combis);
999
1000 return 0;
1001nla_put_failure:
1002 return -ENOBUFS;
1003}
1004
3713b4e3 1005#ifdef CONFIG_PM
b56cf720
JB		 1006static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1007 struct sk_buff *msg)
1008{
964dc9e2 1009 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1010 struct nlattr *nl_tcp;
1011
1012 if (!tcp)
1013 return 0;
1014
1015 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1016 if (!nl_tcp)
1017 return -ENOBUFS;
1018
1019 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1020 tcp->data_payload_max))
1021 return -ENOBUFS;
1022
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1024 tcp->data_payload_max))
1025 return -ENOBUFS;
1026
1027 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1028 return -ENOBUFS;
1029
1030 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1031 sizeof(*tcp->tok), tcp->tok))
1032 return -ENOBUFS;
1033
1034 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1035 tcp->data_interval_max))
1036 return -ENOBUFS;
1037
1038 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1039 tcp->wake_payload_max))
1040 return -ENOBUFS;
1041
1042 nla_nest_end(msg, nl_tcp);
1043 return 0;
1044}
1045
3713b4e3 1046static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1047 struct cfg80211_registered_device *rdev,
b56cf720 1048 bool large)
55682965 1049{
3713b4e3 1050 struct nlattr *nl_wowlan;
55682965 1051
1b8ec87a 1052 if (!rdev->wiphy.wowlan)
3713b4e3 1053 return 0;
55682965 1054
3713b4e3
JB		 1055 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1056 if (!nl_wowlan)
1057 return -ENOBUFS;
9360ffd1 1058
1b8ec87a 1059 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1060 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1061 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1062 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1063 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1064 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1065 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1067 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1068 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1069 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1070 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1071 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1075 return -ENOBUFS;
9360ffd1 1076
1b8ec87a 1077 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1078 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1079 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1080 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1081 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1082 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1083 };
9360ffd1 1084
3713b4e3
JB		 1085 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1086 sizeof(pat), &pat))
1087 return -ENOBUFS;
1088 }
9360ffd1 1089
1b8ec87a 1090 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1091 return -ENOBUFS;
1092
8cd4d456
LC		 1093 /* TODO: send wowlan net detect */
1094
3713b4e3 1095 nla_nest_end(msg, nl_wowlan);
9360ffd1 1096
3713b4e3
JB		 1097 return 0;
1098}
1099#endif
9360ffd1 1100
be29b99a 1101static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1102 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1103{
1104 struct nl80211_coalesce_rule_support rule;
1105
1b8ec87a 1106 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1107 return 0;
1108
1b8ec87a
ZG		 1109 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1110 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1111 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1112 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1113 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1114 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1115
1116 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1117 return -ENOBUFS;
1118
1119 return 0;
1120}
1121
3713b4e3
JB		 1122static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1123 struct ieee80211_supported_band *sband)
1124{
1125 struct nlattr *nl_rates, *nl_rate;
1126 struct ieee80211_rate *rate;
1127 int i;
87bbbe22 1128
3713b4e3
JB		 1129 /* add HT info */
1130 if (sband->ht_cap.ht_supported &&
1131 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1132 sizeof(sband->ht_cap.mcs),
1133 &sband->ht_cap.mcs) ||
1134 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1135 sband->ht_cap.cap) ||
1136 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1137 sband->ht_cap.ampdu_factor) ||
1138 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1139 sband->ht_cap.ampdu_density)))
1140 return -ENOBUFS;
afe0cbf8 1141
3713b4e3
JB		 1142 /* add VHT info */
1143 if (sband->vht_cap.vht_supported &&
1144 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1145 sizeof(sband->vht_cap.vht_mcs),
1146 &sband->vht_cap.vht_mcs) ||
1147 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1148 sband->vht_cap.cap)))
1149 return -ENOBUFS;
f59ac048 1150
3713b4e3
JB		 1151 /* add bitrates */
1152 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1153 if (!nl_rates)
1154 return -ENOBUFS;
ee688b00 1155
3713b4e3
JB		 1156 for (i = 0; i < sband->n_bitrates; i++) {
1157 nl_rate = nla_nest_start(msg, i);
1158 if (!nl_rate)
1159 return -ENOBUFS;
ee688b00 1160
3713b4e3
JB		 1161 rate = &sband->bitrates[i];
1162 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1163 rate->bitrate))
1164 return -ENOBUFS;
1165 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1166 nla_put_flag(msg,
1167 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1168 return -ENOBUFS;
ee688b00 1169
3713b4e3
JB		 1170 nla_nest_end(msg, nl_rate);
1171 }
d51626df 1172
3713b4e3 1173 nla_nest_end(msg, nl_rates);
bf0c111e 1174
3713b4e3
JB		 1175 return 0;
1176}
ee688b00 1177
3713b4e3
JB		 1178static int
1179nl80211_send_mgmt_stypes(struct sk_buff *msg,
1180 const struct ieee80211_txrx_stypes *mgmt_stypes)
1181{
1182 u16 stypes;
1183 struct nlattr *nl_ftypes, *nl_ifs;
1184 enum nl80211_iftype ift;
1185 int i;
ee688b00 1186
3713b4e3
JB		 1187 if (!mgmt_stypes)
1188 return 0;
5dab3b8a 1189
3713b4e3
JB		 1190 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1191 if (!nl_ifs)
1192 return -ENOBUFS;
e2f367f2 1193
3713b4e3
JB		 1194 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1195 nl_ftypes = nla_nest_start(msg, ift);
1196 if (!nl_ftypes)
1197 return -ENOBUFS;
1198 i = 0;
1199 stypes = mgmt_stypes[ift].tx;
1200 while (stypes) {
1201 if ((stypes & 1) &&
1202 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1203 (i << 4) | IEEE80211_FTYPE_MGMT))
1204 return -ENOBUFS;
1205 stypes >>= 1;
1206 i++;
ee688b00 1207 }
3713b4e3
JB		 1208 nla_nest_end(msg, nl_ftypes);
1209 }
ee688b00 1210
3713b4e3 1211 nla_nest_end(msg, nl_ifs);
ee688b00 1212
3713b4e3
JB		 1213 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1214 if (!nl_ifs)
1215 return -ENOBUFS;
ee688b00 1216
3713b4e3
JB		 1217 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1218 nl_ftypes = nla_nest_start(msg, ift);
1219 if (!nl_ftypes)
1220 return -ENOBUFS;
1221 i = 0;
1222 stypes = mgmt_stypes[ift].rx;
1223 while (stypes) {
1224 if ((stypes & 1) &&
1225 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1226 (i << 4) | IEEE80211_FTYPE_MGMT))
1227 return -ENOBUFS;
1228 stypes >>= 1;
1229 i++;
1230 }
1231 nla_nest_end(msg, nl_ftypes);
1232 }
1233 nla_nest_end(msg, nl_ifs);
ee688b00 1234
3713b4e3
JB		 1235 return 0;
1236}
ee688b00 1237
86e8cf98
JB		 1238struct nl80211_dump_wiphy_state {
1239 s64 filter_wiphy;
1240 long start;
1241 long split_start, band_start, chan_start;
1242 bool split;
1243};
1244
1b8ec87a 1245static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1246 enum nl80211_commands cmd,
3713b4e3 1247 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1248 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1249{
1250 void *hdr;
1251 struct nlattr *nl_bands, *nl_band;
1252 struct nlattr *nl_freqs, *nl_freq;
1253 struct nlattr *nl_cmds;
1254 enum ieee80211_band band;
1255 struct ieee80211_channel *chan;
1256 int i;
1257 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1258 rdev->wiphy.mgmt_stypes;
fe1abafd 1259 u32 features;
ee688b00 1260
3bb20556 1261 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1262 if (!hdr)
1263 return -ENOBUFS;
ee688b00 1264
86e8cf98
JB		 1265 if (WARN_ON(!state))
1266 return -EINVAL;
ee688b00 1267
1b8ec87a 1268 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1269 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1270 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1271 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1272 cfg80211_rdev_list_generation))
8fdc621d
JB		 1273 goto nla_put_failure;
1274
3bb20556
JB		 1275 if (cmd != NL80211_CMD_NEW_WIPHY)
1276 goto finish;
1277
86e8cf98 1278 switch (state->split_start) {
3713b4e3
JB		 1279 case 0:
1280 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1281 rdev->wiphy.retry_short) ||
3713b4e3 1282 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1283 rdev->wiphy.retry_long) ||
3713b4e3 1284 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1285 rdev->wiphy.frag_threshold) ||
3713b4e3 1286 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1287 rdev->wiphy.rts_threshold) ||
3713b4e3 1288 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1289 rdev->wiphy.coverage_class) ||
3713b4e3 1290 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1291 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1292 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1293 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1294 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1295 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1296 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1297 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1298 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1299 rdev->wiphy.max_match_sets))
9360ffd1 1300 goto nla_put_failure;
3713b4e3 1301
1b8ec87a 1302 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1303 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1304 goto nla_put_failure;
1b8ec87a 1305 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1306 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1307 goto nla_put_failure;
1b8ec87a 1308 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1309 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1310 goto nla_put_failure;
1b8ec87a 1311 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1312 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1313 goto nla_put_failure;
1b8ec87a 1314 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1315 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1316 goto nla_put_failure;
1b8ec87a 1317 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1318 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1319 goto nla_put_failure;
86e8cf98
JB		 1320 state->split_start++;
1321 if (state->split)
3713b4e3
JB		 1322 break;
1323 case 1:
1324 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1325 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1326 rdev->wiphy.cipher_suites))
3713b4e3 1327 goto nla_put_failure;
4745fc09 1328
3713b4e3 1329 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1330 rdev->wiphy.max_num_pmkids))
3713b4e3 1331 goto nla_put_failure;
b23aa676 1332
1b8ec87a 1333 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1334 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1335 goto nla_put_failure;
b23aa676 1336
3713b4e3 1337 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1338 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1339 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1340 rdev->wiphy.available_antennas_rx))
9360ffd1 1341 goto nla_put_failure;
b23aa676 1342
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1344 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1345 rdev->wiphy.probe_resp_offload))
3713b4e3 1346 goto nla_put_failure;
8fdc621d 1347
1b8ec87a
ZG		 1348 if ((rdev->wiphy.available_antennas_tx ||
1349 rdev->wiphy.available_antennas_rx) &&
1350 rdev->ops->get_antenna) {
3713b4e3
JB		 1351 u32 tx_ant = 0, rx_ant = 0;
1352 int res;
1b8ec87a 1353 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1354 if (!res) {
1355 if (nla_put_u32(msg,
1356 NL80211_ATTR_WIPHY_ANTENNA_TX,
1357 tx_ant) ||
1358 nla_put_u32(msg,
1359 NL80211_ATTR_WIPHY_ANTENNA_RX,
1360 rx_ant))
1361 goto nla_put_failure;
1362 }
1363 }
a293911d 1364
86e8cf98
JB		 1365 state->split_start++;
1366 if (state->split)
3713b4e3
JB		 1367 break;
1368 case 2:
1369 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1370 rdev->wiphy.interface_modes))
3713b4e3 1371 goto nla_put_failure;
86e8cf98
JB		 1372 state->split_start++;
1373 if (state->split)
3713b4e3
JB		 1374 break;
1375 case 3:
1376 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1377 if (!nl_bands)
1378 goto nla_put_failure;
f7ca38df 1379
86e8cf98
JB		 1380 for (band = state->band_start;
1381 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1382 struct ieee80211_supported_band *sband;
2e161f78 1383
1b8ec87a 1384 sband = rdev->wiphy.bands[band];
2e161f78 1385
3713b4e3
JB		 1386 if (!sband)
1387 continue;
1388
1389 nl_band = nla_nest_start(msg, band);
1390 if (!nl_band)
2e161f78 1391 goto nla_put_failure;
3713b4e3 1392
86e8cf98 1393 switch (state->chan_start) {
3713b4e3
JB		 1394 case 0:
1395 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1396 goto nla_put_failure;
86e8cf98
JB		 1397 state->chan_start++;
1398 if (state->split)
3713b4e3
JB		 1399 break;
1400 default:
1401 /* add frequencies */
1402 nl_freqs = nla_nest_start(
1403 msg, NL80211_BAND_ATTR_FREQS);
1404 if (!nl_freqs)
1405 goto nla_put_failure;
1406
86e8cf98 1407 for (i = state->chan_start - 1;
3713b4e3
JB		 1408 i < sband->n_channels;
1409 i++) {
1410 nl_freq = nla_nest_start(msg, i);
1411 if (!nl_freq)
1412 goto nla_put_failure;
1413
1414 chan = &sband->channels[i];
1415
86e8cf98
JB		 1416 if (nl80211_msg_put_channel(
1417 msg, chan,
1418 state->split))
3713b4e3
JB		 1419 goto nla_put_failure;
1420
1421 nla_nest_end(msg, nl_freq);
86e8cf98 1422 if (state->split)
3713b4e3
JB		 1423 break;
1424 }
1425 if (i < sband->n_channels)
86e8cf98 1426 state->chan_start = i + 2;
3713b4e3 1427 else
86e8cf98 1428 state->chan_start = 0;
3713b4e3
JB		 1429 nla_nest_end(msg, nl_freqs);
1430 }
1431
1432 nla_nest_end(msg, nl_band);
1433
86e8cf98 1434 if (state->split) {
3713b4e3 1435 /* start again here */
86e8cf98 1436 if (state->chan_start)
3713b4e3
JB		 1437 band--;
1438 break;
2e161f78 1439 }
2e161f78 1440 }
3713b4e3 1441 nla_nest_end(msg, nl_bands);
2e161f78 1442
3713b4e3 1443 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1444 state->band_start = band + 1;
3713b4e3 1445 else
86e8cf98 1446 state->band_start = 0;
74b70a4e 1447
3713b4e3 1448 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1449 if (state->band_start == 0 && state->chan_start == 0)
1450 state->split_start++;
1451 if (state->split)
3713b4e3
JB		 1452 break;
1453 case 4:
1454 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1455 if (!nl_cmds)
2e161f78
JB		 1456 goto nla_put_failure;
1457
3713b4e3
JB		 1458 i = 0;
1459#define CMD(op, n) \
1460 do { \
1b8ec87a 1461 if (rdev->ops->op) { \
3713b4e3
JB		 1462 i++; \
1463 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1464 goto nla_put_failure; \
1465 } \
1466 } while (0)
1467
1468 CMD(add_virtual_intf, NEW_INTERFACE);
1469 CMD(change_virtual_intf, SET_INTERFACE);
1470 CMD(add_key, NEW_KEY);
1471 CMD(start_ap, START_AP);
1472 CMD(add_station, NEW_STATION);
1473 CMD(add_mpath, NEW_MPATH);
1474 CMD(update_mesh_config, SET_MESH_CONFIG);
1475 CMD(change_bss, SET_BSS);
1476 CMD(auth, AUTHENTICATE);
1477 CMD(assoc, ASSOCIATE);
1478 CMD(deauth, DEAUTHENTICATE);
1479 CMD(disassoc, DISASSOCIATE);
1480 CMD(join_ibss, JOIN_IBSS);
1481 CMD(join_mesh, JOIN_MESH);
1482 CMD(set_pmksa, SET_PMKSA);
1483 CMD(del_pmksa, DEL_PMKSA);
1484 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1485 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1486 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1487 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1488 CMD(mgmt_tx, FRAME);
1489 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1490 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1491 i++;
1492 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1493 goto nla_put_failure;
2e161f78 1494 }
1b8ec87a
ZG		 1495 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1496 rdev->ops->join_mesh) {
3713b4e3
JB		 1497 i++;
1498 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1499 goto nla_put_failure;
1500 }
1501 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1502 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1503 CMD(tdls_mgmt, TDLS_MGMT);
1504 CMD(tdls_oper, TDLS_OPER);
1505 }
1b8ec87a 1506 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1507 CMD(sched_scan_start, START_SCHED_SCAN);
1508 CMD(probe_client, PROBE_CLIENT);
1509 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1510 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1511 i++;
1512 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1513 goto nla_put_failure;
1514 }
1515 CMD(start_p2p_device, START_P2P_DEVICE);
1516 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1517#ifdef CONFIG_NL80211_TESTMODE
1518 CMD(testmode_cmd, TESTMODE);
1519#endif
86e8cf98 1520 if (state->split) {
5de17984
AS		 1521 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1522 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1523 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1524 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1525 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1526 if (rdev->wiphy.features &
1527 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1528 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1529 }
02df00eb 1530 /* add into the if now */
3713b4e3 1531#undef CMD
ff1b6e69 1532
1b8ec87a 1533 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1534 i++;
1535 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1536 goto nla_put_failure;
ff1b6e69
JB		 1537 }
1538
1b8ec87a 1539 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1540 i++;
1541 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1542 goto nla_put_failure;
1543 }
1544
1545 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1546 state->split_start++;
1547 if (state->split)
3713b4e3
JB		 1548 break;
1549 case 5:
1b8ec87a
ZG		 1550 if (rdev->ops->remain_on_channel &&
1551 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1552 nla_put_u32(msg,
1553 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1554 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1555 goto nla_put_failure;
1556
1b8ec87a 1557 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1558 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1559 goto nla_put_failure;
1560
1561 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1562 goto nla_put_failure;
86e8cf98
JB		 1563 state->split_start++;
1564 if (state->split)
3713b4e3
JB		 1565 break;
1566 case 6:
1567#ifdef CONFIG_PM
1b8ec87a 1568 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1569 goto nla_put_failure;
86e8cf98
JB		 1570 state->split_start++;
1571 if (state->split)
3713b4e3
JB		 1572 break;
1573#else
86e8cf98 1574 state->split_start++;
dfb89c56 1575#endif
3713b4e3
JB		 1576 case 7:
1577 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1578 rdev->wiphy.software_iftypes))
3713b4e3 1579 goto nla_put_failure;
ff1b6e69 1580
1b8ec87a 1581 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1582 state->split))
3713b4e3 1583 goto nla_put_failure;
7527a782 1584
86e8cf98
JB		 1585 state->split_start++;
1586 if (state->split)
3713b4e3
JB		 1587 break;
1588 case 8:
1b8ec87a 1589 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1590 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1591 rdev->wiphy.ap_sme_capa))
3713b4e3 1592 goto nla_put_failure;
7527a782 1593
1b8ec87a 1594 features = rdev->wiphy.features;
fe1abafd
JB		 1595 /*
1596 * We can only add the per-channel limit information if the
1597 * dump is split, otherwise it makes it too big. Therefore
1598 * only advertise it in that case.
1599 */
86e8cf98 1600 if (state->split)
fe1abafd
JB		 1601 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1602 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1603 goto nla_put_failure;
562a7480 1604
1b8ec87a 1605 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1606 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1607 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1608 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1609 goto nla_put_failure;
1f074bd8 1610
1b8ec87a
ZG		 1611 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1612 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1613 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1614 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1615 goto nla_put_failure;
7e7c8926 1616
3713b4e3
JB		 1617 /*
1618 * Any information below this point is only available to
1619 * applications that can deal with it being split. This
1620 * helps ensure that newly added capabilities don't break
1621 * older tools by overrunning their buffers.
1622 *
1623 * We still increment split_start so that in the split
1624 * case we'll continue with more data in the next round,
1625 * but break unconditionally so unsplit data stops here.
1626 */
86e8cf98 1627 state->split_start++;
3713b4e3
JB		 1628 break;
1629 case 9:
1b8ec87a 1630 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1631 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1632 rdev->wiphy.extended_capabilities_len,
1633 rdev->wiphy.extended_capabilities) ||
fe1abafd 1634 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1635 rdev->wiphy.extended_capabilities_len,
1636 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1637 goto nla_put_failure;
a50df0c4 1638
1b8ec87a 1639 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1640 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1641 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1642 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1643 goto nla_put_failure;
1644
be29b99a
AK		 1645 state->split_start++;
1646 break;
1647 case 10:
1b8ec87a 1648 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1649 goto nla_put_failure;
1650
1b8ec87a 1651 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1652 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1653 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1654 goto nla_put_failure;
b43504cf 1655
1b8ec87a 1656 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1657 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1658 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1659 goto nla_put_failure;
1660
ad7e718c
JB		 1661 state->split_start++;
1662 break;
1663 case 11:
1b8ec87a 1664 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1665 const struct nl80211_vendor_cmd_info *info;
1666 struct nlattr *nested;
1667
1668 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1669 if (!nested)
1670 goto nla_put_failure;
1671
1b8ec87a
ZG		 1672 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1673 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1674 if (nla_put(msg, i + 1, sizeof(*info), info))
1675 goto nla_put_failure;
1676 }
1677 nla_nest_end(msg, nested);
1678 }
1679
1b8ec87a 1680 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1681 const struct nl80211_vendor_cmd_info *info;
1682 struct nlattr *nested;
ad7e718c 1683
567ffc35
JB		 1684 nested = nla_nest_start(msg,
1685 NL80211_ATTR_VENDOR_EVENTS);
1686 if (!nested)
ad7e718c 1687 goto nla_put_failure;
567ffc35 1688
1b8ec87a
ZG		 1689 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1690 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1691 if (nla_put(msg, i + 1, sizeof(*info), info))
1692 goto nla_put_failure;
1693 }
1694 nla_nest_end(msg, nested);
1695 }
9a774c78
AO		 1696 state->split_start++;
1697 break;
1698 case 12:
1699 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1700 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1701 rdev->wiphy.max_num_csa_counters))
1702 goto nla_put_failure;
01e0daa4 1703
3713b4e3 1704 /* done */
86e8cf98 1705 state->split_start = 0;
3713b4e3
JB		 1706 break;
1707 }
3bb20556 1708 finish:
55682965
JB		 1709 return genlmsg_end(msg, hdr);
1710
1711 nla_put_failure:
bc3ed28c
TG		 1712 genlmsg_cancel(msg, hdr);
1713 return -EMSGSIZE;
55682965
JB		 1714}
1715
86e8cf98
JB		 1716static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1717 struct netlink_callback *cb,
1718 struct nl80211_dump_wiphy_state *state)
1719{
1720 struct nlattr **tb = nl80211_fam.attrbuf;
1721 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1722 tb, nl80211_fam.maxattr, nl80211_policy);
1723 /* ignore parse errors for backward compatibility */
1724 if (ret)
1725 return 0;
1726
1727 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1728 if (tb[NL80211_ATTR_WIPHY])
1729 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1730 if (tb[NL80211_ATTR_WDEV])
1731 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1732 if (tb[NL80211_ATTR_IFINDEX]) {
1733 struct net_device *netdev;
1734 struct cfg80211_registered_device *rdev;
1735 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1736
7f2b8562 1737 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1738 if (!netdev)
1739 return -ENODEV;
1740 if (netdev->ieee80211_ptr) {
f26cbf40 1741 rdev = wiphy_to_rdev(
86e8cf98
JB		 1742 netdev->ieee80211_ptr->wiphy);
1743 state->filter_wiphy = rdev->wiphy_idx;
1744 }
86e8cf98
JB		 1745 }
1746
1747 return 0;
1748}
1749
55682965
JB		 1750static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1751{
645e77de 1752 int idx = 0, ret;
86e8cf98 1753 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1754 struct cfg80211_registered_device *rdev;
3a5a423b 1755
5fe231e8 1756 rtnl_lock();
86e8cf98
JB		 1757 if (!state) {
1758 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1759 if (!state) {
1760 rtnl_unlock();
86e8cf98 1761 return -ENOMEM;
3713b4e3 1762 }
86e8cf98
JB		 1763 state->filter_wiphy = -1;
1764 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1765 if (ret) {
1766 kfree(state);
1767 rtnl_unlock();
1768 return ret;
3713b4e3 1769 }
86e8cf98 1770 cb->args[0] = (long)state;
3713b4e3
JB		 1771 }
1772
1b8ec87a
ZG		 1773 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1774 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1775 continue;
86e8cf98 1776 if (++idx <= state->start)
55682965 1777 continue;
86e8cf98 1778 if (state->filter_wiphy != -1 &&
1b8ec87a 1779 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1780 continue;
1781 /* attempt to fit multiple wiphy data chunks into the skb */
1782 do {
3bb20556
JB		 1783 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1784 skb,
3713b4e3
JB		 1785 NETLINK_CB(cb->skb).portid,
1786 cb->nlh->nlmsg_seq,
86e8cf98 1787 NLM_F_MULTI, state);
3713b4e3
JB		 1788 if (ret < 0) {
1789 /*
1790 * If sending the wiphy data didn't fit (ENOBUFS
1791 * or EMSGSIZE returned), this SKB is still
1792 * empty (so it's not too big because another
1793 * wiphy dataset is already in the skb) and
1794 * we've not tried to adjust the dump allocation
1795 * yet ... then adjust the alloc size to be
1796 * bigger, and return 1 but with the empty skb.
1797 * This results in an empty message being RX'ed
1798 * in userspace, but that is ignored.
1799 *
1800 * We can then retry with the larger buffer.
1801 */
1802 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1803 !skb->len && !state->split &&
3713b4e3
JB		 1804 cb->min_dump_alloc < 4096) {
1805 cb->min_dump_alloc = 4096;
f12cb289 1806 state->split_start = 0;
d98cae64 1807 rtnl_unlock();
3713b4e3
JB		 1808 return 1;
1809 }
1810 idx--;
1811 break;
645e77de 1812 }
86e8cf98 1813 } while (state->split_start > 0);
3713b4e3 1814 break;
55682965 1815 }
5fe231e8 1816 rtnl_unlock();
55682965 1817
86e8cf98 1818 state->start = idx;
55682965
JB		 1819
1820 return skb->len;
1821}
1822
86e8cf98
JB		 1823static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1824{
1825 kfree((void *)cb->args[0]);
1826 return 0;
1827}
1828
55682965
JB		 1829static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1830{
1831 struct sk_buff *msg;
1b8ec87a 1832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1833 struct nl80211_dump_wiphy_state state = {};
55682965 1834
645e77de 1835 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1836 if (!msg)
4c476991 1837 return -ENOMEM;
55682965 1838
3bb20556
JB		 1839 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1840 info->snd_portid, info->snd_seq, 0,
86e8cf98 1841 &state) < 0) {
4c476991
JB		 1842 nlmsg_free(msg);
1843 return -ENOBUFS;
1844 }
55682965 1845
134e6375 1846 return genlmsg_reply(msg, info);
55682965
JB		 1847}
1848
31888487
JM		 1849static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1850 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1851 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1852 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1853 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1854 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1855};
1856
1857static int parse_txq_params(struct nlattr *tb[],
1858 struct ieee80211_txq_params *txq_params)
1859{
a3304b0a 1860 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1861 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1862 !tb[NL80211_TXQ_ATTR_AIFS])
1863 return -EINVAL;
1864
a3304b0a 1865 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1866 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1867 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1868 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1869 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1870
a3304b0a
JB		 1871 if (txq_params->ac >= NL80211_NUM_ACS)
1872 return -EINVAL;
1873
31888487
JM		 1874 return 0;
1875}
1876
f444de05
JB		 1877static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1878{
1879 /*
cc1d2806
JB		 1880 * You can only set the channel explicitly for WDS interfaces,
1881 * all others have their channel managed via their respective
1882 * "establish a connection" command (connect, join, ...)
1883 *
1884 * For AP/GO and mesh mode, the channel can be set with the
1885 * channel userspace API, but is only stored and passed to the
1886 * low-level driver when the AP starts or the mesh is joined.
1887 * This is for backward compatibility, userspace can also give
1888 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1889 *
1890 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1891 * whatever else is going on, so they have their own special
1892 * operation to set the monitor channel if possible.
f444de05
JB		 1893 */
1894 return !wdev ||
1895 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1896 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1897 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1898 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1899}
1900
683b6d3b
JB		 1901static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1902 struct genl_info *info,
1903 struct cfg80211_chan_def *chandef)
1904{
dbeca2ea 1905 u32 control_freq;
683b6d3b
JB		 1906
1907 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1908 return -EINVAL;
1909
1910 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1911
1912 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1913 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1914 chandef->center_freq1 = control_freq;
1915 chandef->center_freq2 = 0;
683b6d3b
JB		 1916
1917 /* Primary channel not allowed */
1918 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1919 return -EINVAL;
1920
3d9d1d66
JB		 1921 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1922 enum nl80211_channel_type chantype;
1923
1924 chantype = nla_get_u32(
1925 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1926
1927 switch (chantype) {
1928 case NL80211_CHAN_NO_HT:
1929 case NL80211_CHAN_HT20:
1930 case NL80211_CHAN_HT40PLUS:
1931 case NL80211_CHAN_HT40MINUS:
1932 cfg80211_chandef_create(chandef, chandef->chan,
1933 chantype);
1934 break;
1935 default:
1936 return -EINVAL;
1937 }
1938 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1939 chandef->width =
1940 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1941 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1942 chandef->center_freq1 =
1943 nla_get_u32(
1944 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1945 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1946 chandef->center_freq2 =
1947 nla_get_u32(
1948 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1949 }
1950
9f5e8f6e 1951 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1952 return -EINVAL;
1953
9f5e8f6e
JB		 1954 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1955 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1956 return -EINVAL;
1957
2f301ab2
SW		 1958 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1959 chandef->width == NL80211_CHAN_WIDTH_10) &&
1960 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1961 return -EINVAL;
1962
683b6d3b
JB		 1963 return 0;
1964}
1965
f444de05 1966static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1967 struct net_device *dev,
f444de05
JB		 1968 struct genl_info *info)
1969{
683b6d3b 1970 struct cfg80211_chan_def chandef;
f444de05 1971 int result;
e8c9bd5b 1972 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1973 struct wireless_dev *wdev = NULL;
e8c9bd5b 1974
e16821bc
JM		 1975 if (dev)
1976 wdev = dev->ieee80211_ptr;
f444de05
JB		 1977 if (!nl80211_can_set_dev_channel(wdev))
1978 return -EOPNOTSUPP;
e16821bc
JM		 1979 if (wdev)
1980 iftype = wdev->iftype;
f444de05 1981
683b6d3b
JB		 1982 result = nl80211_parse_chandef(rdev, info, &chandef);
1983 if (result)
1984 return result;
f444de05 1985
e8c9bd5b 1986 switch (iftype) {
aa430da4
JB		 1987 case NL80211_IFTYPE_AP:
1988 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1989 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1990 result = -EINVAL;
1991 break;
1992 }
e16821bc
JM		 1993 if (wdev->beacon_interval) {
1994 if (!dev || !rdev->ops->set_ap_chanwidth ||
1995 !(rdev->wiphy.features &
1996 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1997 result = -EBUSY;
1998 break;
1999 }
2000
2001 /* Only allow dynamic channel width changes */
2002 if (chandef.chan != wdev->preset_chandef.chan) {
2003 result = -EBUSY;
2004 break;
2005 }
2006 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2007 if (result)
2008 break;
2009 }
683b6d3b 2010 wdev->preset_chandef = chandef;
aa430da4
JB		 2011 result = 0;
2012 break;
cc1d2806 2013 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2014 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2015 break;
e8c9bd5b 2016 case NL80211_IFTYPE_MONITOR:
683b6d3b 2017 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2018 break;
aa430da4 2019 default:
e8c9bd5b 2020 result = -EINVAL;
f444de05 2021 }
f444de05
JB		 2022
2023 return result;
2024}
2025
2026static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2027{
4c476991
JB		 2028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2029 struct net_device *netdev = info->user_ptr[1];
f444de05 2030
e16821bc 2031 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2032}
2033
e8347eba
BJ		 2034static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2035{
43b19952
JB		 2036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2037 struct net_device *dev = info->user_ptr[1];
2038 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2039 const u8 *bssid;
e8347eba
BJ		 2040
2041 if (!info->attrs[NL80211_ATTR_MAC])
2042 return -EINVAL;
2043
43b19952
JB		 2044 if (netif_running(dev))
2045 return -EBUSY;
e8347eba 2046
43b19952
JB		 2047 if (!rdev->ops->set_wds_peer)
2048 return -EOPNOTSUPP;
e8347eba 2049
43b19952
JB		 2050 if (wdev->iftype != NL80211_IFTYPE_WDS)
2051 return -EOPNOTSUPP;
e8347eba
BJ		 2052
2053 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2054 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2055}
2056
2057
55682965
JB		 2058static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2059{
2060 struct cfg80211_registered_device *rdev;
f444de05
JB		 2061 struct net_device *netdev = NULL;
2062 struct wireless_dev *wdev;
a1e567c8 2063 int result = 0, rem_txq_params = 0;
31888487 2064 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2065 u32 changed;
2066 u8 retry_short = 0, retry_long = 0;
2067 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2068 u8 coverage_class = 0;
55682965 2069
5fe231e8
JB		 2070 ASSERT_RTNL();
2071
f444de05
JB		 2072 /*
2073 * Try to find the wiphy and netdev. Normally this
2074 * function shouldn't need the netdev, but this is
2075 * done for backward compatibility -- previously
2076 * setting the channel was done per wiphy, but now
2077 * it is per netdev. Previous userland like hostapd
2078 * also passed a netdev to set_wiphy, so that it is
2079 * possible to let that go to the right netdev!
2080 */
4bbf4d56 2081
f444de05
JB		 2082 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2083 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2084
7f2b8562 2085 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2086 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2087 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2088 else
f444de05 2089 netdev = NULL;
4bbf4d56
JB		 2090 }
2091
f444de05 2092 if (!netdev) {
878d9ec7
JB		 2093 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2094 info->attrs);
5fe231e8 2095 if (IS_ERR(rdev))
4c476991 2096 return PTR_ERR(rdev);
f444de05
JB		 2097 wdev = NULL;
2098 netdev = NULL;
2099 result = 0;
71fe96bf 2100 } else
f444de05 2101 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2102
2103 /*
2104 * end workaround code, by now the rdev is available
2105 * and locked, and wdev may or may not be NULL.
2106 */
4bbf4d56
JB		 2107
2108 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2109 result = cfg80211_dev_rename(
2110 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2111
4bbf4d56 2112 if (result)
7f2b8562 2113 return result;
31888487
JM		 2114
2115 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2116 struct ieee80211_txq_params txq_params;
2117 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2118
7f2b8562
YX		 2119 if (!rdev->ops->set_txq_params)
2120 return -EOPNOTSUPP;
31888487 2121
7f2b8562
YX		 2122 if (!netdev)
2123 return -EINVAL;
f70f01c2 2124
133a3ff2 2125 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2126 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2127 return -EINVAL;
133a3ff2 2128
7f2b8562
YX		 2129 if (!netif_running(netdev))
2130 return -ENETDOWN;
2b5f8b0b 2131
31888487
JM		 2132 nla_for_each_nested(nl_txq_params,
2133 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2134 rem_txq_params) {
ae811e21
JB		 2135 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2136 nla_data(nl_txq_params),
2137 nla_len(nl_txq_params),
2138 txq_params_policy);
2139 if (result)
2140 return result;
31888487
JM		 2141 result = parse_txq_params(tb, &txq_params);
2142 if (result)
7f2b8562 2143 return result;
31888487 2144
e35e4d28
HG		 2145 result = rdev_set_txq_params(rdev, netdev,
2146 &txq_params);
31888487 2147 if (result)
7f2b8562 2148 return result;
31888487
JM		 2149 }
2150 }
55682965 2151
72bdcf34 2152 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2153 result = __nl80211_set_channel(
2154 rdev,
2155 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2156 info);
72bdcf34 2157 if (result)
7f2b8562 2158 return result;
72bdcf34
JM		 2159 }
2160
98d2ff8b 2161 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2162 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2163 enum nl80211_tx_power_setting type;
2164 int idx, mbm = 0;
2165
c8442118
JB		 2166 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2167 txp_wdev = NULL;
2168
7f2b8562
YX		 2169 if (!rdev->ops->set_tx_power)
2170 return -EOPNOTSUPP;
98d2ff8b
JO		 2171
2172 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2173 type = nla_get_u32(info->attrs[idx]);
2174
2175 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2176 (type != NL80211_TX_POWER_AUTOMATIC))
2177 return -EINVAL;
98d2ff8b
JO		 2178
2179 if (type != NL80211_TX_POWER_AUTOMATIC) {
2180 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2181 mbm = nla_get_u32(info->attrs[idx]);
2182 }
2183
c8442118 2184 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2185 if (result)
7f2b8562 2186 return result;
98d2ff8b
JO		 2187 }
2188
afe0cbf8
BR		 2189 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2190 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2191 u32 tx_ant, rx_ant;
7f531e03
BR		 2192 if ((!rdev->wiphy.available_antennas_tx &&
2193 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2194 !rdev->ops->set_antenna)
2195 return -EOPNOTSUPP;
afe0cbf8
BR		 2196
2197 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2198 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2199
a7ffac95 2200 /* reject antenna configurations which don't match the
7f531e03
BR		 2201 * available antenna masks, except for the "all" mask */
2202 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2203 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2204 return -EINVAL;
a7ffac95 2205
7f531e03
BR		 2206 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2207 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2208
e35e4d28 2209 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2210 if (result)
7f2b8562 2211 return result;
afe0cbf8
BR		 2212 }
2213
b9a5f8ca
JM		 2214 changed = 0;
2215
2216 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2217 retry_short = nla_get_u8(
2218 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2219 if (retry_short == 0)
2220 return -EINVAL;
2221
b9a5f8ca
JM		 2222 changed |= WIPHY_PARAM_RETRY_SHORT;
2223 }
2224
2225 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2226 retry_long = nla_get_u8(
2227 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2228 if (retry_long == 0)
2229 return -EINVAL;
2230
b9a5f8ca
JM		 2231 changed |= WIPHY_PARAM_RETRY_LONG;
2232 }
2233
2234 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2235 frag_threshold = nla_get_u32(
2236 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2237 if (frag_threshold < 256)
2238 return -EINVAL;
2239
b9a5f8ca
JM		 2240 if (frag_threshold != (u32) -1) {
2241 /*
2242 * Fragments (apart from the last one) are required to
2243 * have even length. Make the fragmentation code
2244 * simpler by stripping LSB should someone try to use
2245 * odd threshold value.
2246 */
2247 frag_threshold &= ~0x1;
2248 }
2249 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2250 }
2251
2252 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2253 rts_threshold = nla_get_u32(
2254 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2255 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2256 }
2257
81077e82 2258 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2259 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2260 return -EINVAL;
2261
81077e82
LT		 2262 coverage_class = nla_get_u8(
2263 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2264 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2265 }
2266
3057dbfd
LB		 2267 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2268 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2269 return -EOPNOTSUPP;
2270
2271 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2272 }
2273
b9a5f8ca
JM		 2274 if (changed) {
2275 u8 old_retry_short, old_retry_long;
2276 u32 old_frag_threshold, old_rts_threshold;
81077e82 2277 u8 old_coverage_class;
b9a5f8ca 2278
7f2b8562
YX		 2279 if (!rdev->ops->set_wiphy_params)
2280 return -EOPNOTSUPP;
b9a5f8ca
JM		 2281
2282 old_retry_short = rdev->wiphy.retry_short;
2283 old_retry_long = rdev->wiphy.retry_long;
2284 old_frag_threshold = rdev->wiphy.frag_threshold;
2285 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2286 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2287
2288 if (changed & WIPHY_PARAM_RETRY_SHORT)
2289 rdev->wiphy.retry_short = retry_short;
2290 if (changed & WIPHY_PARAM_RETRY_LONG)
2291 rdev->wiphy.retry_long = retry_long;
2292 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2293 rdev->wiphy.frag_threshold = frag_threshold;
2294 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2295 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2296 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2297 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2298
e35e4d28 2299 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2300 if (result) {
2301 rdev->wiphy.retry_short = old_retry_short;
2302 rdev->wiphy.retry_long = old_retry_long;
2303 rdev->wiphy.frag_threshold = old_frag_threshold;
2304 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2305 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2306 }
2307 }
7f2b8562 2308 return 0;
55682965
JB		 2309}
2310
71bbc994
JB		 2311static inline u64 wdev_id(struct wireless_dev *wdev)
2312{
2313 return (u64)wdev->identifier |
f26cbf40 2314 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2315}
55682965 2316
683b6d3b 2317static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2318 const struct cfg80211_chan_def *chandef)
683b6d3b 2319{
601555cd
JB		 2320 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2321 return -EINVAL;
3d9d1d66 2322
683b6d3b
JB		 2323 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2324 chandef->chan->center_freq))
2325 return -ENOBUFS;
3d9d1d66
JB		 2326 switch (chandef->width) {
2327 case NL80211_CHAN_WIDTH_20_NOHT:
2328 case NL80211_CHAN_WIDTH_20:
2329 case NL80211_CHAN_WIDTH_40:
2330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2331 cfg80211_get_chandef_type(chandef)))
2332 return -ENOBUFS;
2333 break;
2334 default:
2335 break;
2336 }
2337 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2338 return -ENOBUFS;
2339 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2340 return -ENOBUFS;
2341 if (chandef->center_freq2 &&
2342 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2343 return -ENOBUFS;
2344 return 0;
2345}
2346
15e47304 2347static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2348 struct cfg80211_registered_device *rdev,
8f894be2 2349 struct wireless_dev *wdev, bool removal)
55682965 2350{
72fb2abc 2351 struct net_device *dev = wdev->netdev;
8f894be2 2352 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2353 void *hdr;
2354
8f894be2
TB		 2355 if (removal)
2356 cmd = NL80211_CMD_DEL_INTERFACE;
2357
2358 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2359 if (!hdr)
2360 return -1;
2361
72fb2abc
JB		 2362 if (dev &&
2363 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2364 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2365 goto nla_put_failure;
2366
2367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2368 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2369 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2370 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2371 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2372 rdev->devlist_generation ^
2373 (cfg80211_rdev_list_generation << 2)))
2374 goto nla_put_failure;
f5ea9120 2375
5b7ccaf3 2376 if (rdev->ops->get_channel) {
683b6d3b
JB		 2377 int ret;
2378 struct cfg80211_chan_def chandef;
2379
2380 ret = rdev_get_channel(rdev, wdev, &chandef);
2381 if (ret == 0) {
2382 if (nl80211_send_chandef(msg, &chandef))
2383 goto nla_put_failure;
2384 }
d91df0e3
PF		 2385 }
2386
b84e7a05
AQ		 2387 if (wdev->ssid_len) {
2388 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2389 goto nla_put_failure;
2390 }
2391
55682965
JB		 2392 return genlmsg_end(msg, hdr);
2393
2394 nla_put_failure:
bc3ed28c
TG		 2395 genlmsg_cancel(msg, hdr);
2396 return -EMSGSIZE;
55682965
JB		 2397}
2398
2399static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2400{
2401 int wp_idx = 0;
2402 int if_idx = 0;
2403 int wp_start = cb->args[0];
2404 int if_start = cb->args[1];
f5ea9120 2405 struct cfg80211_registered_device *rdev;
55682965
JB		 2406 struct wireless_dev *wdev;
2407
5fe231e8 2408 rtnl_lock();
f5ea9120
JB		 2409 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2410 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2411 continue;
bba95fef
JB		 2412 if (wp_idx < wp_start) {
2413 wp_idx++;
55682965 2414 continue;
bba95fef 2415 }
55682965
JB		 2416 if_idx = 0;
2417
89a54e48 2418 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2419 if (if_idx < if_start) {
2420 if_idx++;
55682965 2421 continue;
bba95fef 2422 }
15e47304 2423 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2424 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2425 rdev, wdev, false) < 0) {
bba95fef
JB		 2426 goto out;
2427 }
2428 if_idx++;
55682965 2429 }
bba95fef
JB		 2430
2431 wp_idx++;
55682965 2432 }
bba95fef 2433 out:
5fe231e8 2434 rtnl_unlock();
55682965
JB		 2435
2436 cb->args[0] = wp_idx;
2437 cb->args[1] = if_idx;
2438
2439 return skb->len;
2440}
2441
2442static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2443{
2444 struct sk_buff *msg;
1b8ec87a 2445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2446 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2447
fd2120ca 2448 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2449 if (!msg)
4c476991 2450 return -ENOMEM;
55682965 2451
15e47304 2452 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2453 rdev, wdev, false) < 0) {
4c476991
JB		 2454 nlmsg_free(msg);
2455 return -ENOBUFS;
2456 }
55682965 2457
134e6375 2458 return genlmsg_reply(msg, info);
55682965
JB		 2459}
2460
66f7ac50
MW		 2461static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2462 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2463 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2464 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2465 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2466 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2467 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2468};
2469
2470static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2471{
2472 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2473 int flag;
2474
2475 *mntrflags = 0;
2476
2477 if (!nla)
2478 return -EINVAL;
2479
2480 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2481 nla, mntr_flags_policy))
2482 return -EINVAL;
2483
2484 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2485 if (flags[flag])
2486 *mntrflags |= (1<<flag);
2487
2488 return 0;
2489}
2490
9bc383de 2491static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2492 struct net_device *netdev, u8 use_4addr,
2493 enum nl80211_iftype iftype)
9bc383de 2494{
ad4bb6f8 2495 if (!use_4addr) {
f350a0a8 2496 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2497 return -EBUSY;
9bc383de 2498 return 0;
ad4bb6f8 2499 }
9bc383de
JB		 2500
2501 switch (iftype) {
2502 case NL80211_IFTYPE_AP_VLAN:
2503 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2504 return 0;
2505 break;
2506 case NL80211_IFTYPE_STATION:
2507 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2508 return 0;
2509 break;
2510 default:
2511 break;
2512 }
2513
2514 return -EOPNOTSUPP;
2515}
2516
55682965
JB		 2517static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2518{
4c476991 2519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2520 struct vif_params params;
e36d56b6 2521 int err;
04a773ad 2522 enum nl80211_iftype otype, ntype;
4c476991 2523 struct net_device *dev = info->user_ptr[1];
92ffe055 2524 u32 _flags, *flags = NULL;
ac7f9cfa 2525 bool change = false;
55682965 2526
2ec600d6
LCC		 2527 memset(&params, 0, sizeof(params));
2528
04a773ad 2529 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2530
723b038d 2531 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2532 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2533 if (otype != ntype)
ac7f9cfa 2534 change = true;
4c476991
JB		 2535 if (ntype > NL80211_IFTYPE_MAX)
2536 return -EINVAL;
723b038d
JB		 2537 }
2538
92ffe055 2539 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2540 struct wireless_dev *wdev = dev->ieee80211_ptr;
2541
4c476991
JB		 2542 if (ntype != NL80211_IFTYPE_MESH_POINT)
2543 return -EINVAL;
29cbe68c
JB		 2544 if (netif_running(dev))
2545 return -EBUSY;
2546
2547 wdev_lock(wdev);
2548 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2549 IEEE80211_MAX_MESH_ID_LEN);
2550 wdev->mesh_id_up_len =
2551 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2552 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2553 wdev->mesh_id_up_len);
2554 wdev_unlock(wdev);
2ec600d6
LCC		 2555 }
2556
8b787643
FF		 2557 if (info->attrs[NL80211_ATTR_4ADDR]) {
2558 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2559 change = true;
ad4bb6f8 2560 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2561 if (err)
4c476991 2562 return err;
8b787643
FF		 2563 } else {
2564 params.use_4addr = -1;
2565 }
2566
92ffe055 2567 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2568 if (ntype != NL80211_IFTYPE_MONITOR)
2569 return -EINVAL;
92ffe055
JB		 2570 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2571 &_flags);
ac7f9cfa 2572 if (err)
4c476991 2573 return err;
ac7f9cfa
JB		 2574
2575 flags = &_flags;
2576 change = true;
92ffe055 2577 }
3b85875a 2578
18003297 2579 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2580 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2581 return -EOPNOTSUPP;
2582
ac7f9cfa 2583 if (change)
3d54d255 2584 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2585 else
2586 err = 0;
60719ffd 2587
9bc383de
JB		 2588 if (!err && params.use_4addr != -1)
2589 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2590
55682965
JB		 2591 return err;
2592}
2593
2594static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2595{
4c476991 2596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2597 struct vif_params params;
84efbb84 2598 struct wireless_dev *wdev;
8f894be2 2599 struct sk_buff *msg, *event;
55682965
JB		 2600 int err;
2601 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2602 u32 flags;
55682965 2603
78f22b6a
JB		 2604 /* to avoid failing a new interface creation due to pending removal */
2605 cfg80211_destroy_ifaces(rdev);
2606
2ec600d6
LCC		 2607 memset(&params, 0, sizeof(params));
2608
55682965
JB		 2609 if (!info->attrs[NL80211_ATTR_IFNAME])
2610 return -EINVAL;
2611
2612 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2613 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2614 if (type > NL80211_IFTYPE_MAX)
2615 return -EINVAL;
2616 }
2617
79c97e97 2618 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2619 !(rdev->wiphy.interface_modes & (1 << type)))
2620 return -EOPNOTSUPP;
55682965 2621
e8f479b1
BG		 2622 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2623 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2624 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2625 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2626 ETH_ALEN);
2627 if (!is_valid_ether_addr(params.macaddr))
2628 return -EADDRNOTAVAIL;
2629 }
2630
9bc383de 2631 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2632 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2633 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2634 if (err)
4c476991 2635 return err;
9bc383de 2636 }
8b787643 2637
1c90f9d4
JB		 2638 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2639 if (!msg)
2640 return -ENOMEM;
2641
66f7ac50
MW		 2642 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2643 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2644 &flags);
e057d3c3 2645
18003297 2646 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2647 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2648 return -EOPNOTSUPP;
2649
e35e4d28
HG		 2650 wdev = rdev_add_virtual_intf(rdev,
2651 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2652 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2653 if (WARN_ON(!wdev)) {
2654 nlmsg_free(msg);
2655 return -EPROTO;
2656 } else if (IS_ERR(wdev)) {
1c90f9d4 2657 nlmsg_free(msg);
84efbb84 2658 return PTR_ERR(wdev);
1c90f9d4 2659 }
2ec600d6 2660
18e5ca65 2661 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2662 wdev->owner_nlportid = info->snd_portid;
2663
98104fde
JB		 2664 switch (type) {
2665 case NL80211_IFTYPE_MESH_POINT:
2666 if (!info->attrs[NL80211_ATTR_MESH_ID])
2667 break;
29cbe68c
JB		 2668 wdev_lock(wdev);
2669 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2670 IEEE80211_MAX_MESH_ID_LEN);
2671 wdev->mesh_id_up_len =
2672 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2673 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2674 wdev->mesh_id_up_len);
2675 wdev_unlock(wdev);
98104fde
JB		 2676 break;
2677 case NL80211_IFTYPE_P2P_DEVICE:
2678 /*
2679 * P2P Device doesn't have a netdev, so doesn't go
2680 * through the netdev notifier and must be added here
2681 */
2682 mutex_init(&wdev->mtx);
2683 INIT_LIST_HEAD(&wdev->event_list);
2684 spin_lock_init(&wdev->event_lock);
2685 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2686 spin_lock_init(&wdev->mgmt_registrations_lock);
2687
98104fde
JB		 2688 wdev->identifier = ++rdev->wdev_id;
2689 list_add_rcu(&wdev->list, &rdev->wdev_list);
2690 rdev->devlist_generation++;
98104fde
JB		 2691 break;
2692 default:
2693 break;
29cbe68c
JB		 2694 }
2695
15e47304 2696 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2697 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2698 nlmsg_free(msg);
2699 return -ENOBUFS;
2700 }
2701
8f894be2
TB		 2702 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2703 if (event) {
2704 if (nl80211_send_iface(event, 0, 0, 0,
2705 rdev, wdev, false) < 0) {
2706 nlmsg_free(event);
2707 goto out;
2708 }
2709
2710 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2711 event, 0, NL80211_MCGRP_CONFIG,
2712 GFP_KERNEL);
2713 }
2714
2715out:
1c90f9d4 2716 return genlmsg_reply(msg, info);
55682965
JB		 2717}
2718
2719static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2720{
4c476991 2721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2722 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2723 struct sk_buff *msg;
2724 int status;
55682965 2725
4c476991
JB		 2726 if (!rdev->ops->del_virtual_intf)
2727 return -EOPNOTSUPP;
55682965 2728
8f894be2
TB		 2729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2730 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2731 nlmsg_free(msg);
2732 msg = NULL;
2733 }
2734
84efbb84
JB		 2735 /*
2736 * If we remove a wireless device without a netdev then clear
2737 * user_ptr[1] so that nl80211_post_doit won't dereference it
2738 * to check if it needs to do dev_put(). Otherwise it crashes
2739 * since the wdev has been freed, unlike with a netdev where
2740 * we need the dev_put() for the netdev to really be freed.
2741 */
2742 if (!wdev->netdev)
2743 info->user_ptr[1] = NULL;
2744
8f894be2
TB		 2745 status = rdev_del_virtual_intf(rdev, wdev);
2746 if (status >= 0 && msg)
2747 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2748 msg, 0, NL80211_MCGRP_CONFIG,
2749 GFP_KERNEL);
2750 else
2751 nlmsg_free(msg);
2752
2753 return status;
55682965
JB		 2754}
2755
1d9d9213
SW		 2756static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2757{
2758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2759 struct net_device *dev = info->user_ptr[1];
2760 u16 noack_map;
2761
2762 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2763 return -EINVAL;
2764
2765 if (!rdev->ops->set_noack_map)
2766 return -EOPNOTSUPP;
2767
2768 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2769
e35e4d28 2770 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2771}
2772
41ade00f
JB		 2773struct get_key_cookie {
2774 struct sk_buff *msg;
2775 int error;
b9454e83 2776 int idx;
41ade00f
JB		 2777};
2778
2779static void get_key_callback(void *c, struct key_params *params)
2780{
b9454e83 2781 struct nlattr *key;
41ade00f
JB		 2782 struct get_key_cookie *cookie = c;
2783
9360ffd1
DM		 2784 if ((params->key &&
2785 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2786 params->key_len, params->key)) ||
2787 (params->seq &&
2788 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2789 params->seq_len, params->seq)) ||
2790 (params->cipher &&
2791 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2792 params->cipher)))
2793 goto nla_put_failure;
41ade00f 2794
b9454e83
JB		 2795 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2796 if (!key)
2797 goto nla_put_failure;
2798
9360ffd1
DM		 2799 if ((params->key &&
2800 nla_put(cookie->msg, NL80211_KEY_DATA,
2801 params->key_len, params->key)) ||
2802 (params->seq &&
2803 nla_put(cookie->msg, NL80211_KEY_SEQ,
2804 params->seq_len, params->seq)) ||
2805 (params->cipher &&
2806 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2807 params->cipher)))
2808 goto nla_put_failure;
b9454e83 2809
9360ffd1
DM		 2810 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2811 goto nla_put_failure;
b9454e83
JB		 2812
2813 nla_nest_end(cookie->msg, key);
2814
41ade00f
JB		 2815 return;
2816 nla_put_failure:
2817 cookie->error = 1;
2818}
2819
2820static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2821{
4c476991 2822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2823 int err;
4c476991 2824 struct net_device *dev = info->user_ptr[1];
41ade00f 2825 u8 key_idx = 0;
e31b8213
JB		 2826 const u8 *mac_addr = NULL;
2827 bool pairwise;
41ade00f
JB		 2828 struct get_key_cookie cookie = {
2829 .error = 0,
2830 };
2831 void *hdr;
2832 struct sk_buff *msg;
2833
2834 if (info->attrs[NL80211_ATTR_KEY_IDX])
2835 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2836
3cfcf6ac 2837 if (key_idx > 5)
41ade00f
JB		 2838 return -EINVAL;
2839
2840 if (info->attrs[NL80211_ATTR_MAC])
2841 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2842
e31b8213
JB		 2843 pairwise = !!mac_addr;
2844 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2845 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2846 if (kt >= NUM_NL80211_KEYTYPES)
2847 return -EINVAL;
2848 if (kt != NL80211_KEYTYPE_GROUP &&
2849 kt != NL80211_KEYTYPE_PAIRWISE)
2850 return -EINVAL;
2851 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2852 }
2853
4c476991
JB		 2854 if (!rdev->ops->get_key)
2855 return -EOPNOTSUPP;
41ade00f 2856
fd2120ca 2857 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2858 if (!msg)
2859 return -ENOMEM;
41ade00f 2860
15e47304 2861 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2862 NL80211_CMD_NEW_KEY);
cb35fba3 2863 if (!hdr)
9fe271af 2864 goto nla_put_failure;
41ade00f
JB		 2865
2866 cookie.msg = msg;
b9454e83 2867 cookie.idx = key_idx;
41ade00f 2868
9360ffd1
DM		 2869 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2870 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2871 goto nla_put_failure;
2872 if (mac_addr &&
2873 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2874 goto nla_put_failure;
41ade00f 2875
e31b8213
JB		 2876 if (pairwise && mac_addr &&
2877 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2878 return -ENOENT;
2879
e35e4d28
HG		 2880 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2881 get_key_callback);
41ade00f
JB		 2882
2883 if (err)
6c95e2a2 2884 goto free_msg;
41ade00f
JB		 2885
2886 if (cookie.error)
2887 goto nla_put_failure;
2888
2889 genlmsg_end(msg, hdr);
4c476991 2890 return genlmsg_reply(msg, info);
41ade00f
JB		 2891
2892 nla_put_failure:
2893 err = -ENOBUFS;
6c95e2a2 2894 free_msg:
41ade00f 2895 nlmsg_free(msg);
41ade00f
JB		 2896 return err;
2897}
2898
2899static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2900{
4c476991 2901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2902 struct key_parse key;
41ade00f 2903 int err;
4c476991 2904 struct net_device *dev = info->user_ptr[1];
41ade00f 2905
b9454e83
JB		 2906 err = nl80211_parse_key(info, &key);
2907 if (err)
2908 return err;
41ade00f 2909
b9454e83 2910 if (key.idx < 0)
41ade00f
JB		 2911 return -EINVAL;
2912
b9454e83
JB		 2913 /* only support setting default key */
2914 if (!key.def && !key.defmgmt)
41ade00f
JB		 2915 return -EINVAL;
2916
dbd2fd65 2917 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2918
dbd2fd65
JB		 2919 if (key.def) {
2920 if (!rdev->ops->set_default_key) {
2921 err = -EOPNOTSUPP;
2922 goto out;
2923 }
41ade00f 2924
dbd2fd65
JB		 2925 err = nl80211_key_allowed(dev->ieee80211_ptr);
2926 if (err)
2927 goto out;
2928
e35e4d28 2929 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2930 key.def_uni, key.def_multi);
2931
2932 if (err)
2933 goto out;
fffd0934 2934
3d23e349 2935#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2936 dev->ieee80211_ptr->wext.default_key = key.idx;
2937#endif
2938 } else {
2939 if (key.def_uni || !key.def_multi) {
2940 err = -EINVAL;
2941 goto out;
2942 }
2943
2944 if (!rdev->ops->set_default_mgmt_key) {
2945 err = -EOPNOTSUPP;
2946 goto out;
2947 }
2948
2949 err = nl80211_key_allowed(dev->ieee80211_ptr);
2950 if (err)
2951 goto out;
2952
e35e4d28 2953 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2954 if (err)
2955 goto out;
2956
2957#ifdef CONFIG_CFG80211_WEXT
2958 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2959#endif
dbd2fd65
JB		 2960 }
2961
2962 out:
fffd0934 2963 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2964
41ade00f
JB		 2965 return err;
2966}
2967
2968static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2969{
4c476991 2970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2971 int err;
4c476991 2972 struct net_device *dev = info->user_ptr[1];
b9454e83 2973 struct key_parse key;
e31b8213 2974 const u8 *mac_addr = NULL;
41ade00f 2975
b9454e83
JB		 2976 err = nl80211_parse_key(info, &key);
2977 if (err)
2978 return err;
41ade00f 2979
b9454e83 2980 if (!key.p.key)
41ade00f
JB		 2981 return -EINVAL;
2982
41ade00f
JB		 2983 if (info->attrs[NL80211_ATTR_MAC])
2984 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2985
e31b8213
JB		 2986 if (key.type == -1) {
2987 if (mac_addr)
2988 key.type = NL80211_KEYTYPE_PAIRWISE;
2989 else
2990 key.type = NL80211_KEYTYPE_GROUP;
2991 }
2992
2993 /* for now */
2994 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2995 key.type != NL80211_KEYTYPE_GROUP)
2996 return -EINVAL;
2997
4c476991
JB		 2998 if (!rdev->ops->add_key)
2999 return -EOPNOTSUPP;
25e47c18 3000
e31b8213
JB		 3001 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3002 key.type == NL80211_KEYTYPE_PAIRWISE,
3003 mac_addr))
4c476991 3004 return -EINVAL;
41ade00f 3005
fffd0934
JB		 3006 wdev_lock(dev->ieee80211_ptr);
3007 err = nl80211_key_allowed(dev->ieee80211_ptr);
3008 if (!err)
e35e4d28
HG		 3009 err = rdev_add_key(rdev, dev, key.idx,
3010 key.type == NL80211_KEYTYPE_PAIRWISE,
3011 mac_addr, &key.p);
fffd0934 3012 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3013
41ade00f
JB		 3014 return err;
3015}
3016
3017static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3018{
4c476991 3019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3020 int err;
4c476991 3021 struct net_device *dev = info->user_ptr[1];
41ade00f 3022 u8 *mac_addr = NULL;
b9454e83 3023 struct key_parse key;
41ade00f 3024
b9454e83
JB		 3025 err = nl80211_parse_key(info, &key);
3026 if (err)
3027 return err;
41ade00f
JB		 3028
3029 if (info->attrs[NL80211_ATTR_MAC])
3030 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3031
e31b8213
JB		 3032 if (key.type == -1) {
3033 if (mac_addr)
3034 key.type = NL80211_KEYTYPE_PAIRWISE;
3035 else
3036 key.type = NL80211_KEYTYPE_GROUP;
3037 }
3038
3039 /* for now */
3040 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3041 key.type != NL80211_KEYTYPE_GROUP)
3042 return -EINVAL;
3043
4c476991
JB		 3044 if (!rdev->ops->del_key)
3045 return -EOPNOTSUPP;
41ade00f 3046
fffd0934
JB		 3047 wdev_lock(dev->ieee80211_ptr);
3048 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3049
3050 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3051 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3052 err = -ENOENT;
3053
fffd0934 3054 if (!err)
e35e4d28
HG		 3055 err = rdev_del_key(rdev, dev, key.idx,
3056 key.type == NL80211_KEYTYPE_PAIRWISE,
3057 mac_addr);
41ade00f 3058
3d23e349 3059#ifdef CONFIG_CFG80211_WEXT
08645126 3060 if (!err) {
b9454e83 3061 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3062 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3063 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3064 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3065 }
3066#endif
fffd0934 3067 wdev_unlock(dev->ieee80211_ptr);
08645126 3068
41ade00f
JB		 3069 return err;
3070}
3071
77765eaf
VT		 3072/* This function returns an error or the number of nested attributes */
3073static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3074{
3075 struct nlattr *attr;
3076 int n_entries = 0, tmp;
3077
3078 nla_for_each_nested(attr, nl_attr, tmp) {
3079 if (nla_len(attr) != ETH_ALEN)
3080 return -EINVAL;
3081
3082 n_entries++;
3083 }
3084
3085 return n_entries;
3086}
3087
3088/*
3089 * This function parses ACL information and allocates memory for ACL data.
3090 * On successful return, the calling function is responsible to free the
3091 * ACL buffer returned by this function.
3092 */
3093static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3094 struct genl_info *info)
3095{
3096 enum nl80211_acl_policy acl_policy;
3097 struct nlattr *attr;
3098 struct cfg80211_acl_data *acl;
3099 int i = 0, n_entries, tmp;
3100
3101 if (!wiphy->max_acl_mac_addrs)
3102 return ERR_PTR(-EOPNOTSUPP);
3103
3104 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3105 return ERR_PTR(-EINVAL);
3106
3107 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3108 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3109 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3110 return ERR_PTR(-EINVAL);
3111
3112 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3113 return ERR_PTR(-EINVAL);
3114
3115 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3116 if (n_entries < 0)
3117 return ERR_PTR(n_entries);
3118
3119 if (n_entries > wiphy->max_acl_mac_addrs)
3120 return ERR_PTR(-ENOTSUPP);
3121
3122 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3123 GFP_KERNEL);
3124 if (!acl)
3125 return ERR_PTR(-ENOMEM);
3126
3127 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3128 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3129 i++;
3130 }
3131
3132 acl->n_acl_entries = n_entries;
3133 acl->acl_policy = acl_policy;
3134
3135 return acl;
3136}
3137
3138static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3139{
3140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3141 struct net_device *dev = info->user_ptr[1];
3142 struct cfg80211_acl_data *acl;
3143 int err;
3144
3145 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3146 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3147 return -EOPNOTSUPP;
3148
3149 if (!dev->ieee80211_ptr->beacon_interval)
3150 return -EINVAL;
3151
3152 acl = parse_acl_data(&rdev->wiphy, info);
3153 if (IS_ERR(acl))
3154 return PTR_ERR(acl);
3155
3156 err = rdev_set_mac_acl(rdev, dev, acl);
3157
3158 kfree(acl);
3159
3160 return err;
3161}
3162
a1193be8 3163static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3164 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3165{
8860020e 3166 bool haveinfo = false;
ed1b6cc7 3167
a1193be8
SW		 3168 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3169 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3170 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3171 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3172 return -EINVAL;
3173
8860020e 3174 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3175
a1193be8
SW		 3176 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3177 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3178 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3179 if (!bcn->head_len)
3180 return -EINVAL;
3181 haveinfo = true;
ed1b6cc7
JB		 3182 }
3183
a1193be8
SW		 3184 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3185 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3186 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3187 haveinfo = true;
ed1b6cc7
JB		 3188 }
3189
4c476991
JB		 3190 if (!haveinfo)
3191 return -EINVAL;
3b85875a 3192
a1193be8
SW		 3193 if (attrs[NL80211_ATTR_IE]) {
3194 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3195 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3196 }
3197
a1193be8 3198 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3199 bcn->proberesp_ies =
a1193be8 3200 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3201 bcn->proberesp_ies_len =
a1193be8 3202 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3203 }
3204
a1193be8 3205 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3206 bcn->assocresp_ies =
a1193be8 3207 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3208 bcn->assocresp_ies_len =
a1193be8 3209 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3210 }
3211
a1193be8
SW		 3212 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3213 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3214 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3215 }
3216
8860020e
JB		 3217 return 0;
3218}
3219
46c1dd0c
FF		 3220static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3221 struct cfg80211_ap_settings *params)
3222{
3223 struct wireless_dev *wdev;
3224 bool ret = false;
3225
89a54e48 3226 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3227 if (wdev->iftype != NL80211_IFTYPE_AP &&
3228 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3229 continue;
3230
683b6d3b 3231 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3232 continue;
3233
683b6d3b 3234 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3235 ret = true;
3236 break;
3237 }
3238
46c1dd0c
FF		 3239 return ret;
3240}
3241
e39e5b5e
JM		 3242static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3243 enum nl80211_auth_type auth_type,
3244 enum nl80211_commands cmd)
3245{
3246 if (auth_type > NL80211_AUTHTYPE_MAX)
3247 return false;
3248
3249 switch (cmd) {
3250 case NL80211_CMD_AUTHENTICATE:
3251 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3252 auth_type == NL80211_AUTHTYPE_SAE)
3253 return false;
3254 return true;
3255 case NL80211_CMD_CONNECT:
3256 case NL80211_CMD_START_AP:
3257 /* SAE not supported yet */
3258 if (auth_type == NL80211_AUTHTYPE_SAE)
3259 return false;
3260 return true;
3261 default:
3262 return false;
3263 }
3264}
3265
8860020e
JB		 3266static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3267{
3268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3269 struct net_device *dev = info->user_ptr[1];
3270 struct wireless_dev *wdev = dev->ieee80211_ptr;
3271 struct cfg80211_ap_settings params;
3272 int err;
3273
3274 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3275 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3276 return -EOPNOTSUPP;
3277
3278 if (!rdev->ops->start_ap)
3279 return -EOPNOTSUPP;
3280
3281 if (wdev->beacon_interval)
3282 return -EALREADY;
3283
3284 memset(&params, 0, sizeof(params));
3285
3286 /* these are required for START_AP */
3287 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3288 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3289 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3290 return -EINVAL;
3291
a1193be8 3292 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3293 if (err)
3294 return err;
3295
3296 params.beacon_interval =
3297 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3298 params.dtim_period =
3299 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3300
3301 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3302 if (err)
3303 return err;
3304
3305 /*
3306 * In theory, some of these attributes should be required here
3307 * but since they were not used when the command was originally
3308 * added, keep them optional for old user space programs to let
3309 * them continue to work with drivers that do not need the
3310 * additional information -- drivers must check!
3311 */
3312 if (info->attrs[NL80211_ATTR_SSID]) {
3313 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3314 params.ssid_len =
3315 nla_len(info->attrs[NL80211_ATTR_SSID]);
3316 if (params.ssid_len == 0 ||
3317 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3318 return -EINVAL;
3319 }
3320
3321 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3322 params.hidden_ssid = nla_get_u32(
3323 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3324 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3325 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3326 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3327 return -EINVAL;
3328 }
3329
3330 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3331
3332 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3333 params.auth_type = nla_get_u32(
3334 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3335 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3336 NL80211_CMD_START_AP))
8860020e
JB		 3337 return -EINVAL;
3338 } else
3339 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3340
3341 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3342 NL80211_MAX_NR_CIPHER_SUITES);
3343 if (err)
3344 return err;
3345
1b658f11
VT		 3346 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3347 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3348 return -EOPNOTSUPP;
3349 params.inactivity_timeout = nla_get_u16(
3350 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3351 }
3352
53cabad7
JB		 3353 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3355 return -EINVAL;
3356 params.p2p_ctwindow =
3357 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3358 if (params.p2p_ctwindow > 127)
3359 return -EINVAL;
3360 if (params.p2p_ctwindow != 0 &&
3361 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3362 return -EINVAL;
3363 }
3364
3365 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3366 u8 tmp;
3367
3368 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3369 return -EINVAL;
3370 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3371 if (tmp > 1)
3372 return -EINVAL;
3373 params.p2p_opp_ps = tmp;
3374 if (params.p2p_opp_ps != 0 &&
3375 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3376 return -EINVAL;
3377 }
3378
aa430da4 3379 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3380 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3381 if (err)
3382 return err;
3383 } else if (wdev->preset_chandef.chan) {
3384 params.chandef = wdev->preset_chandef;
46c1dd0c 3385 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3386 return -EINVAL;
3387
174e0cd2
IP		 3388 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3389 wdev->iftype))
aa430da4
JB		 3390 return -EINVAL;
3391
77765eaf
VT		 3392 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3393 params.acl = parse_acl_data(&rdev->wiphy, info);
3394 if (IS_ERR(params.acl))
3395 return PTR_ERR(params.acl);
3396 }
3397
18998c38
EP		 3398 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3399 params.smps_mode =
3400 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3401 switch (params.smps_mode) {
3402 case NL80211_SMPS_OFF:
3403 break;
3404 case NL80211_SMPS_STATIC:
3405 if (!(rdev->wiphy.features &
3406 NL80211_FEATURE_STATIC_SMPS))
3407 return -EINVAL;
3408 break;
3409 case NL80211_SMPS_DYNAMIC:
3410 if (!(rdev->wiphy.features &
3411 NL80211_FEATURE_DYNAMIC_SMPS))
3412 return -EINVAL;
3413 break;
3414 default:
3415 return -EINVAL;
3416 }
3417 } else {
3418 params.smps_mode = NL80211_SMPS_OFF;
3419 }
3420
c56589ed 3421 wdev_lock(wdev);
e35e4d28 3422 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3423 if (!err) {
683b6d3b 3424 wdev->preset_chandef = params.chandef;
8860020e 3425 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3426 wdev->chandef = params.chandef;
06e191e2
AQ		 3427 wdev->ssid_len = params.ssid_len;
3428 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3429 }
c56589ed 3430 wdev_unlock(wdev);
77765eaf
VT		 3431
3432 kfree(params.acl);
3433
56d1893d 3434 return err;
ed1b6cc7
JB		 3435}
3436
8860020e
JB		 3437static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3438{
3439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3440 struct net_device *dev = info->user_ptr[1];
3441 struct wireless_dev *wdev = dev->ieee80211_ptr;
3442 struct cfg80211_beacon_data params;
3443 int err;
3444
3445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3446 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3447 return -EOPNOTSUPP;
3448
3449 if (!rdev->ops->change_beacon)
3450 return -EOPNOTSUPP;
3451
3452 if (!wdev->beacon_interval)
3453 return -EINVAL;
3454
a1193be8 3455 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3456 if (err)
3457 return err;
3458
c56589ed
SW		 3459 wdev_lock(wdev);
3460 err = rdev_change_beacon(rdev, dev, &params);
3461 wdev_unlock(wdev);
3462
3463 return err;
8860020e
JB		 3464}
3465
3466static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3467{
4c476991
JB		 3468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3469 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3470
7c8d5e03 3471 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3472}
3473
5727ef1b
JB		 3474static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3475 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3476 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3477 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3478 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3479 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3480 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3481};
3482
eccb8e8f 3483static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3484 enum nl80211_iftype iftype,
eccb8e8f 3485 struct station_parameters *params)
5727ef1b
JB		 3486{
3487 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3488 struct nlattr *nla;
5727ef1b
JB		 3489 int flag;
3490
eccb8e8f
JB		 3491 /*
3492 * Try parsing the new attribute first so userspace
3493 * can specify both for older kernels.
3494 */
3495 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3496 if (nla) {
3497 struct nl80211_sta_flag_update *sta_flags;
3498
3499 sta_flags = nla_data(nla);
3500 params->sta_flags_mask = sta_flags->mask;
3501 params->sta_flags_set = sta_flags->set;
77ee7c89 3502 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3503 if ((params->sta_flags_mask |
3504 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3505 return -EINVAL;
3506 return 0;
3507 }
3508
3509 /* if present, parse the old attribute */
5727ef1b 3510
eccb8e8f 3511 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3512 if (!nla)
3513 return 0;
3514
3515 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3516 nla, sta_flags_policy))
3517 return -EINVAL;
3518
bdd3ae3d
JB		 3519 /*
3520 * Only allow certain flags for interface types so that
3521 * other attributes are silently ignored. Remember that
3522 * this is backward compatibility code with old userspace
3523 * and shouldn't be hit in other cases anyway.
3524 */
3525 switch (iftype) {
3526 case NL80211_IFTYPE_AP:
3527 case NL80211_IFTYPE_AP_VLAN:
3528 case NL80211_IFTYPE_P2P_GO:
3529 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3530 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3531 BIT(NL80211_STA_FLAG_WME) |
3532 BIT(NL80211_STA_FLAG_MFP);
3533 break;
3534 case NL80211_IFTYPE_P2P_CLIENT:
3535 case NL80211_IFTYPE_STATION:
3536 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3537 BIT(NL80211_STA_FLAG_TDLS_PEER);
3538 break;
3539 case NL80211_IFTYPE_MESH_POINT:
3540 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3541 BIT(NL80211_STA_FLAG_MFP) |
3542 BIT(NL80211_STA_FLAG_AUTHORIZED);
3543 default:
3544 return -EINVAL;
3545 }
5727ef1b 3546
3383b5a6
JB		 3547 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3548 if (flags[flag]) {
eccb8e8f 3549 params->sta_flags_set |= (1<<flag);
5727ef1b 3550
3383b5a6
JB		 3551 /* no longer support new API additions in old API */
3552 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3553 return -EINVAL;
3554 }
3555 }
3556
5727ef1b
JB		 3557 return 0;
3558}
3559
c8dcfd8a
FF		 3560static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3561 int attr)
3562{
3563 struct nlattr *rate;
8eb41c8d
VK		 3564 u32 bitrate;
3565 u16 bitrate_compat;
c8dcfd8a
FF		 3566
3567 rate = nla_nest_start(msg, attr);
3568 if (!rate)
db9c64cf 3569 return false;
c8dcfd8a
FF		 3570
3571 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3572 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3573 /* report 16-bit bitrate only if we can */
3574 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3575 if (bitrate > 0 &&
3576 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3577 return false;
3578 if (bitrate_compat > 0 &&
3579 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3580 return false;
3581
3582 if (info->flags & RATE_INFO_FLAGS_MCS) {
3583 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3584 return false;
3585 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3586 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3587 return false;
3588 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3589 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3590 return false;
3591 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3592 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3593 return false;
3594 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3595 return false;
3596 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3597 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3598 return false;
3599 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3600 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3601 return false;
3602 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3603 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3604 return false;
3605 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3606 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3607 return false;
3608 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3609 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3610 return false;
3611 }
c8dcfd8a
FF		 3612
3613 nla_nest_end(msg, rate);
3614 return true;
c8dcfd8a
FF		 3615}
3616
119363c7
FF		 3617static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3618 int id)
3619{
3620 void *attr;
3621 int i = 0;
3622
3623 if (!mask)
3624 return true;
3625
3626 attr = nla_nest_start(msg, id);
3627 if (!attr)
3628 return false;
3629
3630 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3631 if (!(mask & BIT(i)))
3632 continue;
3633
3634 if (nla_put_u8(msg, i, signal[i]))
3635 return false;
3636 }
3637
3638 nla_nest_end(msg, attr);
3639
3640 return true;
3641}
3642
15e47304 3643static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3644 int flags,
3645 struct cfg80211_registered_device *rdev,
3646 struct net_device *dev,
98b62183 3647 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3648{
3649 void *hdr;
f4263c98 3650 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3651
15e47304 3652 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3653 if (!hdr)
3654 return -1;
3655
9360ffd1
DM		 3656 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3657 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3658 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3659 goto nla_put_failure;
f5ea9120 3660
2ec600d6
LCC		 3661 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3662 if (!sinfoattr)
fd5b74dc 3663 goto nla_put_failure;
9360ffd1
DM		 3664 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3665 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3666 sinfo->connected_time))
3667 goto nla_put_failure;
3668 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3669 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3670 sinfo->inactive_time))
3671 goto nla_put_failure;
42745e03
VK		 3672 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3673 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3674 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3675 (u32)sinfo->rx_bytes))
9360ffd1 3676 goto nla_put_failure;
42745e03 3677 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3678 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3679 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3680 (u32)sinfo->tx_bytes))
3681 goto nla_put_failure;
3682 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3683 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3684 sinfo->rx_bytes))
3685 goto nla_put_failure;
3686 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3687 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3688 sinfo->tx_bytes))
3689 goto nla_put_failure;
3690 if ((sinfo->filled & STATION_INFO_LLID) &&
3691 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3692 goto nla_put_failure;
3693 if ((sinfo->filled & STATION_INFO_PLID) &&
3694 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3695 goto nla_put_failure;
3696 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3697 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3698 sinfo->plink_state))
3699 goto nla_put_failure;
66266b3a
JL		 3700 switch (rdev->wiphy.signal_type) {
3701 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3702 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3703 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3704 sinfo->signal))
3705 goto nla_put_failure;
3706 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3707 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3708 sinfo->signal_avg))
3709 goto nla_put_failure;
66266b3a
JL		 3710 break;
3711 default:
3712 break;
3713 }
119363c7
FF		 3714 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3715 if (!nl80211_put_signal(msg, sinfo->chains,
3716 sinfo->chain_signal,
3717 NL80211_STA_INFO_CHAIN_SIGNAL))
3718 goto nla_put_failure;
3719 }
3720 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3721 if (!nl80211_put_signal(msg, sinfo->chains,
3722 sinfo->chain_signal_avg,
3723 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3724 goto nla_put_failure;
3725 }
420e7fab 3726 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3727 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3728 NL80211_STA_INFO_TX_BITRATE))
3729 goto nla_put_failure;
3730 }
3731 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3732 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3733 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3734 goto nla_put_failure;
420e7fab 3735 }
9360ffd1
DM		 3736 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3737 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3738 sinfo->rx_packets))
3739 goto nla_put_failure;
3740 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3741 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3742 sinfo->tx_packets))
3743 goto nla_put_failure;
3744 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3745 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3746 sinfo->tx_retries))
3747 goto nla_put_failure;
3748 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3749 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3750 sinfo->tx_failed))
3751 goto nla_put_failure;
867d849f
AQ		 3752 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3753 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3754 sinfo->expected_throughput))
3755 goto nla_put_failure;
9360ffd1
DM		 3756 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3757 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3758 sinfo->beacon_loss_count))
3759 goto nla_put_failure;
3b1c5a53
MP		 3760 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3761 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3762 sinfo->local_pm))
3763 goto nla_put_failure;
3764 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3765 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3766 sinfo->peer_pm))
3767 goto nla_put_failure;
3768 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3769 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3770 sinfo->nonpeer_pm))
3771 goto nla_put_failure;
f4263c98
PS		 3772 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3773 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3774 if (!bss_param)
3775 goto nla_put_failure;
3776
9360ffd1
DM		 3777 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3778 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3779 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3780 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3781 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3782 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3783 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3784 sinfo->bss_param.dtim_period) ||
3785 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3786 sinfo->bss_param.beacon_interval))
3787 goto nla_put_failure;
f4263c98
PS		 3788
3789 nla_nest_end(msg, bss_param);
3790 }
9360ffd1
DM		 3791 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3792 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3793 sizeof(struct nl80211_sta_flag_update),
3794 &sinfo->sta_flags))
3795 goto nla_put_failure;
7eab0f64
JL		 3796 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3797 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3798 sinfo->t_offset))
3799 goto nla_put_failure;
2ec600d6 3800 nla_nest_end(msg, sinfoattr);
fd5b74dc 3801
9360ffd1
DM		 3802 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3803 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3804 sinfo->assoc_req_ies))
3805 goto nla_put_failure;
50d3dfb7 3806
fd5b74dc
JB		 3807 return genlmsg_end(msg, hdr);
3808
3809 nla_put_failure:
bc3ed28c
TG		 3810 genlmsg_cancel(msg, hdr);
3811 return -EMSGSIZE;
fd5b74dc
JB		 3812}
3813
2ec600d6 3814static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3815 struct netlink_callback *cb)
2ec600d6 3816{
2ec600d6 3817 struct station_info sinfo;
1b8ec87a 3818 struct cfg80211_registered_device *rdev;
97990a06 3819 struct wireless_dev *wdev;
2ec600d6 3820 u8 mac_addr[ETH_ALEN];
97990a06 3821 int sta_idx = cb->args[2];
2ec600d6 3822 int err;
2ec600d6 3823
1b8ec87a 3824 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3825 if (err)
3826 return err;
bba95fef 3827
97990a06
JB		 3828 if (!wdev->netdev) {
3829 err = -EINVAL;
3830 goto out_err;
3831 }
3832
1b8ec87a 3833 if (!rdev->ops->dump_station) {
eec60b03 3834 err = -EOPNOTSUPP;
bba95fef
JB		 3835 goto out_err;
3836 }
3837
bba95fef 3838 while (1) {
f612cedf 3839 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3840 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3841 mac_addr, &sinfo);
bba95fef
JB		 3842 if (err == -ENOENT)
3843 break;
3844 if (err)
3b85875a 3845 goto out_err;
bba95fef
JB		 3846
3847 if (nl80211_send_station(skb,
15e47304 3848 NETLINK_CB(cb->skb).portid,
bba95fef 3849 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3850 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3851 &sinfo) < 0)
3852 goto out;
3853
3854 sta_idx++;
3855 }
3856
3857
3858 out:
97990a06 3859 cb->args[2] = sta_idx;
bba95fef 3860 err = skb->len;
bba95fef 3861 out_err:
1b8ec87a 3862 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3863
3864 return err;
2ec600d6 3865}
fd5b74dc 3866
5727ef1b
JB		 3867static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3868{
4c476991
JB		 3869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3870 struct net_device *dev = info->user_ptr[1];
2ec600d6 3871 struct station_info sinfo;
fd5b74dc
JB		 3872 struct sk_buff *msg;
3873 u8 *mac_addr = NULL;
4c476991 3874 int err;
fd5b74dc 3875
2ec600d6 3876 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3877
3878 if (!info->attrs[NL80211_ATTR_MAC])
3879 return -EINVAL;
3880
3881 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3882
4c476991
JB		 3883 if (!rdev->ops->get_station)
3884 return -EOPNOTSUPP;
3b85875a 3885
e35e4d28 3886 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3887 if (err)
4c476991 3888 return err;
2ec600d6 3889
fd2120ca 3890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3891 if (!msg)
4c476991 3892 return -ENOMEM;
fd5b74dc 3893
15e47304 3894 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3895 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3896 nlmsg_free(msg);
3897 return -ENOBUFS;
3898 }
3b85875a 3899
4c476991 3900 return genlmsg_reply(msg, info);
5727ef1b
JB		 3901}
3902
77ee7c89
JB		 3903int cfg80211_check_station_change(struct wiphy *wiphy,
3904 struct station_parameters *params,
3905 enum cfg80211_station_type statype)
3906{
3907 if (params->listen_interval != -1)
3908 return -EINVAL;
c72e1140
AN		 3909 if (params->aid &&
3910 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3911 return -EINVAL;
3912
3913 /* When you run into this, adjust the code below for the new flag */
3914 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3915
3916 switch (statype) {
eef941e6
TP		 3917 case CFG80211_STA_MESH_PEER_KERNEL:
3918 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3919 /*
3920 * No ignoring the TDLS flag here -- the userspace mesh
3921 * code doesn't have the bug of including TDLS in the
3922 * mask everywhere.
3923 */
3924 if (params->sta_flags_mask &
3925 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3926 BIT(NL80211_STA_FLAG_MFP) |
3927 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3928 return -EINVAL;
3929 break;
3930 case CFG80211_STA_TDLS_PEER_SETUP:
3931 case CFG80211_STA_TDLS_PEER_ACTIVE:
3932 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3933 return -EINVAL;
3934 /* ignore since it can't change */
3935 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3936 break;
3937 default:
3938 /* disallow mesh-specific things */
3939 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3940 return -EINVAL;
3941 if (params->local_pm)
3942 return -EINVAL;
3943 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3944 return -EINVAL;
3945 }
3946
3947 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3948 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3949 /* TDLS can't be set, ... */
3950 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3951 return -EINVAL;
3952 /*
3953 * ... but don't bother the driver with it. This works around
3954 * a hostapd/wpa_supplicant issue -- it always includes the
3955 * TLDS_PEER flag in the mask even for AP mode.
3956 */
3957 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3958 }
3959
3960 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3961 /* reject other things that can't change */
3962 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3963 return -EINVAL;
3964 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3965 return -EINVAL;
3966 if (params->supported_rates)
3967 return -EINVAL;
3968 if (params->ext_capab || params->ht_capa || params->vht_capa)
3969 return -EINVAL;
3970 }
3971
3972 if (statype != CFG80211_STA_AP_CLIENT) {
3973 if (params->vlan)
3974 return -EINVAL;
3975 }
3976
3977 switch (statype) {
3978 case CFG80211_STA_AP_MLME_CLIENT:
3979 /* Use this only for authorizing/unauthorizing a station */
3980 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3981 return -EOPNOTSUPP;
3982 break;
3983 case CFG80211_STA_AP_CLIENT:
3984 /* accept only the listed bits */
3985 if (params->sta_flags_mask &
3986 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3987 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3988 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3989 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3990 BIT(NL80211_STA_FLAG_WME) |
3991 BIT(NL80211_STA_FLAG_MFP)))
3992 return -EINVAL;
3993
3994 /* but authenticated/associated only if driver handles it */
3995 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3996 params->sta_flags_mask &
3997 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3998 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3999 return -EINVAL;
4000 break;
4001 case CFG80211_STA_IBSS:
4002 case CFG80211_STA_AP_STA:
4003 /* reject any changes other than AUTHORIZED */
4004 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4005 return -EINVAL;
4006 break;
4007 case CFG80211_STA_TDLS_PEER_SETUP:
4008 /* reject any changes other than AUTHORIZED or WME */
4009 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4010 BIT(NL80211_STA_FLAG_WME)))
4011 return -EINVAL;
4012 /* force (at least) rates when authorizing */
4013 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4014 !params->supported_rates)
4015 return -EINVAL;
4016 break;
4017 case CFG80211_STA_TDLS_PEER_ACTIVE:
4018 /* reject any changes */
4019 return -EINVAL;
eef941e6 4020 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4021 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4022 return -EINVAL;
4023 break;
eef941e6 4024 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4025 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4026 return -EINVAL;
4027 break;
4028 }
4029
4030 return 0;
4031}
4032EXPORT_SYMBOL(cfg80211_check_station_change);
4033
5727ef1b 4034/*
c258d2de 4035 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4036 */
80b99899
JB		 4037static struct net_device *get_vlan(struct genl_info *info,
4038 struct cfg80211_registered_device *rdev)
5727ef1b 4039{
463d0183 4040 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4041 struct net_device *v;
4042 int ret;
4043
4044 if (!vlanattr)
4045 return NULL;
4046
4047 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4048 if (!v)
4049 return ERR_PTR(-ENODEV);
4050
4051 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4052 ret = -EINVAL;
4053 goto error;
5727ef1b 4054 }
80b99899 4055
77ee7c89
JB		 4056 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4057 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4058 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4059 ret = -EINVAL;
4060 goto error;
4061 }
4062
80b99899
JB		 4063 if (!netif_running(v)) {
4064 ret = -ENETDOWN;
4065 goto error;
4066 }
4067
4068 return v;
4069 error:
4070 dev_put(v);
4071 return ERR_PTR(ret);
5727ef1b
JB		 4072}
4073
94e860f1
JB		 4074static const struct nla_policy
4075nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4076 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4077 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4078};
4079
ff276691
JB		 4080static int nl80211_parse_sta_wme(struct genl_info *info,
4081 struct station_parameters *params)
df881293 4082{
df881293
JM		 4083 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4084 struct nlattr *nla;
4085 int err;
4086
df881293
JM		 4087 /* parse WME attributes if present */
4088 if (!info->attrs[NL80211_ATTR_STA_WME])
4089 return 0;
4090
4091 nla = info->attrs[NL80211_ATTR_STA_WME];
4092 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4093 nl80211_sta_wme_policy);
4094 if (err)
4095 return err;
4096
4097 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4098 params->uapsd_queues = nla_get_u8(
4099 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4100 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4101 return -EINVAL;
4102
4103 if (tb[NL80211_STA_WME_MAX_SP])
4104 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4105
4106 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4107 return -EINVAL;
4108
4109 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4110
4111 return 0;
4112}
4113
c01fc9ad
SD		 4114static int nl80211_parse_sta_channel_info(struct genl_info *info,
4115 struct station_parameters *params)
4116{
4117 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4118 params->supported_channels =
4119 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4120 params->supported_channels_len =
4121 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4122 /*
4123 * Need to include at least one (first channel, number of
4124 * channels) tuple for each subband, and must have proper
4125 * tuples for the rest of the data as well.
4126 */
4127 if (params->supported_channels_len < 2)
4128 return -EINVAL;
4129 if (params->supported_channels_len % 2)
4130 return -EINVAL;
4131 }
4132
4133 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4134 params->supported_oper_classes =
4135 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4136 params->supported_oper_classes_len =
4137 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4138 /*
4139 * The value of the Length field of the Supported Operating
4140 * Classes element is between 2 and 253.
4141 */
4142 if (params->supported_oper_classes_len < 2 ||
4143 params->supported_oper_classes_len > 253)
4144 return -EINVAL;
4145 }
4146 return 0;
4147}
4148
ff276691
JB		 4149static int nl80211_set_station_tdls(struct genl_info *info,
4150 struct station_parameters *params)
4151{
c01fc9ad 4152 int err;
ff276691 4153 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4154 if (info->attrs[NL80211_ATTR_PEER_AID])
4155 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4156 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4157 params->ht_capa =
4158 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4159 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4160 params->vht_capa =
4161 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4162
c01fc9ad
SD		 4163 err = nl80211_parse_sta_channel_info(info, params);
4164 if (err)
4165 return err;
4166
ff276691
JB		 4167 return nl80211_parse_sta_wme(info, params);
4168}
4169
5727ef1b
JB		 4170static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4171{
4c476991 4172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4173 struct net_device *dev = info->user_ptr[1];
5727ef1b 4174 struct station_parameters params;
77ee7c89
JB		 4175 u8 *mac_addr;
4176 int err;
5727ef1b
JB		 4177
4178 memset(&params, 0, sizeof(params));
4179
4180 params.listen_interval = -1;
4181
77ee7c89
JB		 4182 if (!rdev->ops->change_station)
4183 return -EOPNOTSUPP;
4184
5727ef1b
JB		 4185 if (info->attrs[NL80211_ATTR_STA_AID])
4186 return -EINVAL;
4187
4188 if (!info->attrs[NL80211_ATTR_MAC])
4189 return -EINVAL;
4190
4191 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4192
4193 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4194 params.supported_rates =
4195 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4196 params.supported_rates_len =
4197 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4198 }
4199
9d62a986
JM		 4200 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4201 params.capability =
4202 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4203 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4204 }
4205
4206 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4207 params.ext_capab =
4208 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4209 params.ext_capab_len =
4210 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4211 }
4212
df881293 4213 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4214 return -EINVAL;
36aedc90 4215
bdd3ae3d 4216 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4217 return -EINVAL;
4218
f8bacc21 4219 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4220 params.plink_action =
f8bacc21
JB		 4221 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4222 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4223 return -EINVAL;
4224 }
2ec600d6 4225
f8bacc21 4226 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4227 params.plink_state =
f8bacc21
JB		 4228 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4229 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4230 return -EINVAL;
4231 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4232 }
9c3990aa 4233
3b1c5a53
MP		 4234 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4235 enum nl80211_mesh_power_mode pm = nla_get_u32(
4236 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4237
4238 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4239 pm > NL80211_MESH_POWER_MAX)
4240 return -EINVAL;
4241
4242 params.local_pm = pm;
4243 }
4244
77ee7c89
JB		 4245 /* Include parameters for TDLS peer (will check later) */
4246 err = nl80211_set_station_tdls(info, &params);
4247 if (err)
4248 return err;
4249
4250 params.vlan = get_vlan(info, rdev);
4251 if (IS_ERR(params.vlan))
4252 return PTR_ERR(params.vlan);
4253
a97f4424
JB		 4254 switch (dev->ieee80211_ptr->iftype) {
4255 case NL80211_IFTYPE_AP:
4256 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4257 case NL80211_IFTYPE_P2P_GO:
074ac8df 4258 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4259 case NL80211_IFTYPE_STATION:
267335d6 4260 case NL80211_IFTYPE_ADHOC:
a97f4424 4261 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4262 break;
4263 default:
77ee7c89
JB		 4264 err = -EOPNOTSUPP;
4265 goto out_put_vlan;
034d655e
JB		 4266 }
4267
77ee7c89 4268 /* driver will call cfg80211_check_station_change() */
e35e4d28 4269 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4270
77ee7c89 4271 out_put_vlan:
5727ef1b
JB		 4272 if (params.vlan)
4273 dev_put(params.vlan);
3b85875a 4274
5727ef1b
JB		 4275 return err;
4276}
4277
4278static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4279{
4c476991 4280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4281 int err;
4c476991 4282 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4283 struct station_parameters params;
4284 u8 *mac_addr = NULL;
4285
4286 memset(&params, 0, sizeof(params));
4287
984c311b
JB		 4288 if (!rdev->ops->add_station)
4289 return -EOPNOTSUPP;
4290
5727ef1b
JB		 4291 if (!info->attrs[NL80211_ATTR_MAC])
4292 return -EINVAL;
4293
5727ef1b
JB		 4294 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4295 return -EINVAL;
4296
4297 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4298 return -EINVAL;
4299
5e4b6f56
JM		 4300 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4301 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4302 return -EINVAL;
4303
5727ef1b
JB		 4304 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4305 params.supported_rates =
4306 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4307 params.supported_rates_len =
4308 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4309 params.listen_interval =
4310 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4311
3d124ea2 4312 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4313 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4314 else
4315 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4316 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4317 return -EINVAL;
51b50fbe 4318
9d62a986
JM		 4319 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4320 params.capability =
4321 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4322 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4323 }
4324
4325 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4326 params.ext_capab =
4327 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4328 params.ext_capab_len =
4329 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4330 }
4331
36aedc90
JM		 4332 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4333 params.ht_capa =
4334 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4335
f461be3e
MP		 4336 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4337 params.vht_capa =
4338 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4339
60f4a7b1
MK		 4340 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4341 params.opmode_notif_used = true;
4342 params.opmode_notif =
4343 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4344 }
4345
f8bacc21 4346 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4347 params.plink_action =
f8bacc21
JB		 4348 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4349 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4350 return -EINVAL;
4351 }
96b78dff 4352
c01fc9ad
SD		 4353 err = nl80211_parse_sta_channel_info(info, &params);
4354 if (err)
4355 return err;
4356
ff276691
JB		 4357 err = nl80211_parse_sta_wme(info, &params);
4358 if (err)
4359 return err;
bdd90d5e 4360
bdd3ae3d 4361 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4362 return -EINVAL;
4363
77ee7c89
JB		 4364 /* When you run into this, adjust the code below for the new flag */
4365 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4366
bdd90d5e
JB		 4367 switch (dev->ieee80211_ptr->iftype) {
4368 case NL80211_IFTYPE_AP:
4369 case NL80211_IFTYPE_AP_VLAN:
4370 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4371 /* ignore WME attributes if iface/sta is not capable */
4372 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4373 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4374 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4375
bdd90d5e 4376 /* TDLS peers cannot be added */
3d124ea2
JM		 4377 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4378 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4379 return -EINVAL;
bdd90d5e
JB		 4380 /* but don't bother the driver with it */
4381 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4382
d582cffb
JB		 4383 /* allow authenticated/associated only if driver handles it */
4384 if (!(rdev->wiphy.features &
4385 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4386 params.sta_flags_mask &
4387 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4388 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4389 return -EINVAL;
4390
bdd90d5e
JB		 4391 /* must be last in here for error handling */
4392 params.vlan = get_vlan(info, rdev);
4393 if (IS_ERR(params.vlan))
4394 return PTR_ERR(params.vlan);
4395 break;
4396 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4397 /* ignore uAPSD data */
4398 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4399
d582cffb
JB		 4400 /* associated is disallowed */
4401 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4402 return -EINVAL;
bdd90d5e 4403 /* TDLS peers cannot be added */
3d124ea2
JM		 4404 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4405 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4406 return -EINVAL;
4407 break;
4408 case NL80211_IFTYPE_STATION:
93d08f0b 4409 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4410 /* ignore uAPSD data */
4411 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4412
77ee7c89
JB		 4413 /* these are disallowed */
4414 if (params.sta_flags_mask &
4415 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4416 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4417 return -EINVAL;
bdd90d5e
JB		 4418 /* Only TDLS peers can be added */
4419 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4420 return -EINVAL;
4421 /* Can only add if TDLS ... */
4422 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4423 return -EOPNOTSUPP;
4424 /* ... with external setup is supported */
4425 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4426 return -EOPNOTSUPP;
77ee7c89
JB		 4427 /*
4428 * Older wpa_supplicant versions always mark the TDLS peer
4429 * as authorized, but it shouldn't yet be.
4430 */
4431 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4432 break;
4433 default:
4434 return -EOPNOTSUPP;
c75786c9
EP		 4435 }
4436
bdd90d5e 4437 /* be aware of params.vlan when changing code here */
5727ef1b 4438
e35e4d28 4439 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4440
5727ef1b
JB		 4441 if (params.vlan)
4442 dev_put(params.vlan);
5727ef1b
JB		 4443 return err;
4444}
4445
4446static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4447{
4c476991
JB		 4448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4449 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4450 struct station_del_parameters params;
4451
4452 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4453
4454 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4455 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4456
e80cf853 4457 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4458 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4459 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4460 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4461 return -EINVAL;
5727ef1b 4462
4c476991
JB		 4463 if (!rdev->ops->del_station)
4464 return -EOPNOTSUPP;
3b85875a 4465
98856866
JM		 4466 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4467 params.subtype =
4468 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4469 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4470 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4471 return -EINVAL;
4472 } else {
4473 /* Default to Deauthentication frame */
4474 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4475 }
4476
4477 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4478 params.reason_code =
4479 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4480 if (params.reason_code == 0)
4481 return -EINVAL; /* 0 is reserved */
4482 } else {
4483 /* Default to reason code 2 */
4484 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4485 }
4486
89c771e5 4487 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4488}
4489
15e47304 4490static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4491 int flags, struct net_device *dev,
4492 u8 *dst, u8 *next_hop,
4493 struct mpath_info *pinfo)
4494{
4495 void *hdr;
4496 struct nlattr *pinfoattr;
4497
1ef4c850 4498 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4499 if (!hdr)
4500 return -1;
4501
9360ffd1
DM		 4502 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4503 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4504 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4505 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4506 goto nla_put_failure;
f5ea9120 4507
2ec600d6
LCC		 4508 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4509 if (!pinfoattr)
4510 goto nla_put_failure;
9360ffd1
DM		 4511 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4512 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4513 pinfo->frame_qlen))
4514 goto nla_put_failure;
4515 if (((pinfo->filled & MPATH_INFO_SN) &&
4516 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4517 ((pinfo->filled & MPATH_INFO_METRIC) &&
4518 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4519 pinfo->metric)) ||
4520 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4521 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4522 pinfo->exptime)) ||
4523 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4524 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4525 pinfo->flags)) ||
4526 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4527 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4528 pinfo->discovery_timeout)) ||
4529 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4530 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4531 pinfo->discovery_retries)))
4532 goto nla_put_failure;
2ec600d6
LCC		 4533
4534 nla_nest_end(msg, pinfoattr);
4535
4536 return genlmsg_end(msg, hdr);
4537
4538 nla_put_failure:
bc3ed28c
TG		 4539 genlmsg_cancel(msg, hdr);
4540 return -EMSGSIZE;
2ec600d6
LCC		 4541}
4542
4543static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4544 struct netlink_callback *cb)
2ec600d6 4545{
2ec600d6 4546 struct mpath_info pinfo;
1b8ec87a 4547 struct cfg80211_registered_device *rdev;
97990a06 4548 struct wireless_dev *wdev;
2ec600d6
LCC		 4549 u8 dst[ETH_ALEN];
4550 u8 next_hop[ETH_ALEN];
97990a06 4551 int path_idx = cb->args[2];
2ec600d6 4552 int err;
2ec600d6 4553
1b8ec87a 4554 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4555 if (err)
4556 return err;
bba95fef 4557
1b8ec87a 4558 if (!rdev->ops->dump_mpath) {
eec60b03 4559 err = -EOPNOTSUPP;
bba95fef
JB		 4560 goto out_err;
4561 }
4562
97990a06 4563 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4564 err = -EOPNOTSUPP;
0448b5fc 4565 goto out_err;
eec60b03
JM		 4566 }
4567
bba95fef 4568 while (1) {
1b8ec87a 4569 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4570 next_hop, &pinfo);
bba95fef 4571 if (err == -ENOENT)
2ec600d6 4572 break;
bba95fef 4573 if (err)
3b85875a 4574 goto out_err;
2ec600d6 4575
15e47304 4576 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4577 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4578 wdev->netdev, dst, next_hop,
bba95fef
JB		 4579 &pinfo) < 0)
4580 goto out;
2ec600d6 4581
bba95fef 4582 path_idx++;
2ec600d6 4583 }
2ec600d6 4584
2ec600d6 4585
bba95fef 4586 out:
97990a06 4587 cb->args[2] = path_idx;
bba95fef 4588 err = skb->len;
bba95fef 4589 out_err:
1b8ec87a 4590 nl80211_finish_wdev_dump(rdev);
bba95fef 4591 return err;
2ec600d6
LCC		 4592}
4593
4594static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4595{
4c476991 4596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4597 int err;
4c476991 4598 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4599 struct mpath_info pinfo;
4600 struct sk_buff *msg;
4601 u8 *dst = NULL;
4602 u8 next_hop[ETH_ALEN];
4603
4604 memset(&pinfo, 0, sizeof(pinfo));
4605
4606 if (!info->attrs[NL80211_ATTR_MAC])
4607 return -EINVAL;
4608
4609 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4610
4c476991
JB		 4611 if (!rdev->ops->get_mpath)
4612 return -EOPNOTSUPP;
2ec600d6 4613
4c476991
JB		 4614 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4615 return -EOPNOTSUPP;
eec60b03 4616
e35e4d28 4617 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4618 if (err)
4c476991 4619 return err;
2ec600d6 4620
fd2120ca 4621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4622 if (!msg)
4c476991 4623 return -ENOMEM;
2ec600d6 4624
15e47304 4625 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4626 dev, dst, next_hop, &pinfo) < 0) {
4627 nlmsg_free(msg);
4628 return -ENOBUFS;
4629 }
3b85875a 4630
4c476991 4631 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4632}
4633
4634static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4635{
4c476991
JB		 4636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4637 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4638 u8 *dst = NULL;
4639 u8 *next_hop = NULL;
4640
4641 if (!info->attrs[NL80211_ATTR_MAC])
4642 return -EINVAL;
4643
4644 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4645 return -EINVAL;
4646
4647 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4648 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4649
4c476991
JB		 4650 if (!rdev->ops->change_mpath)
4651 return -EOPNOTSUPP;
35a8efe1 4652
4c476991
JB		 4653 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4654 return -EOPNOTSUPP;
2ec600d6 4655
e35e4d28 4656 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4657}
4c476991 4658
2ec600d6
LCC		 4659static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4660{
4c476991
JB		 4661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4662 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4663 u8 *dst = NULL;
4664 u8 *next_hop = NULL;
4665
4666 if (!info->attrs[NL80211_ATTR_MAC])
4667 return -EINVAL;
4668
4669 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4670 return -EINVAL;
4671
4672 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4673 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4674
4c476991
JB		 4675 if (!rdev->ops->add_mpath)
4676 return -EOPNOTSUPP;
35a8efe1 4677
4c476991
JB		 4678 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4679 return -EOPNOTSUPP;
2ec600d6 4680
e35e4d28 4681 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4682}
4683
4684static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4685{
4c476991
JB		 4686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4687 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4688 u8 *dst = NULL;
4689
4690 if (info->attrs[NL80211_ATTR_MAC])
4691 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4692
4c476991
JB		 4693 if (!rdev->ops->del_mpath)
4694 return -EOPNOTSUPP;
3b85875a 4695
e35e4d28 4696 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4697}
4698
66be7d2b
HR		 4699static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4700{
4701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4702 int err;
4703 struct net_device *dev = info->user_ptr[1];
4704 struct mpath_info pinfo;
4705 struct sk_buff *msg;
4706 u8 *dst = NULL;
4707 u8 mpp[ETH_ALEN];
4708
4709 memset(&pinfo, 0, sizeof(pinfo));
4710
4711 if (!info->attrs[NL80211_ATTR_MAC])
4712 return -EINVAL;
4713
4714 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4715
4716 if (!rdev->ops->get_mpp)
4717 return -EOPNOTSUPP;
4718
4719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4720 return -EOPNOTSUPP;
4721
4722 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4723 if (err)
4724 return err;
4725
4726 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4727 if (!msg)
4728 return -ENOMEM;
4729
4730 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4731 dev, dst, mpp, &pinfo) < 0) {
4732 nlmsg_free(msg);
4733 return -ENOBUFS;
4734 }
4735
4736 return genlmsg_reply(msg, info);
4737}
4738
4739static int nl80211_dump_mpp(struct sk_buff *skb,
4740 struct netlink_callback *cb)
4741{
4742 struct mpath_info pinfo;
4743 struct cfg80211_registered_device *rdev;
4744 struct wireless_dev *wdev;
4745 u8 dst[ETH_ALEN];
4746 u8 mpp[ETH_ALEN];
4747 int path_idx = cb->args[2];
4748 int err;
4749
4750 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4751 if (err)
4752 return err;
4753
4754 if (!rdev->ops->dump_mpp) {
4755 err = -EOPNOTSUPP;
4756 goto out_err;
4757 }
4758
4759 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4760 err = -EOPNOTSUPP;
4761 goto out_err;
4762 }
4763
4764 while (1) {
4765 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4766 mpp, &pinfo);
4767 if (err == -ENOENT)
4768 break;
4769 if (err)
4770 goto out_err;
4771
4772 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4773 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4774 wdev->netdev, dst, mpp,
4775 &pinfo) < 0)
4776 goto out;
4777
4778 path_idx++;
4779 }
4780
4781 out:
4782 cb->args[2] = path_idx;
4783 err = skb->len;
4784 out_err:
4785 nl80211_finish_wdev_dump(rdev);
4786 return err;
4787}
4788
9f1ba906
JM		 4789static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4790{
4c476991
JB		 4791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4792 struct net_device *dev = info->user_ptr[1];
c56589ed 4793 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4794 struct bss_parameters params;
c56589ed 4795 int err;
9f1ba906
JM		 4796
4797 memset(&params, 0, sizeof(params));
4798 /* default to not changing parameters */
4799 params.use_cts_prot = -1;
4800 params.use_short_preamble = -1;
4801 params.use_short_slot_time = -1;
fd8aaaf3 4802 params.ap_isolate = -1;
50b12f59 4803 params.ht_opmode = -1;
53cabad7
JB		 4804 params.p2p_ctwindow = -1;
4805 params.p2p_opp_ps = -1;
9f1ba906
JM		 4806
4807 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4808 params.use_cts_prot =
4809 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4810 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4811 params.use_short_preamble =
4812 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4813 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4814 params.use_short_slot_time =
4815 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4816 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4817 params.basic_rates =
4818 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4819 params.basic_rates_len =
4820 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4821 }
fd8aaaf3
FF		 4822 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4823 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4824 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4825 params.ht_opmode =
4826 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4827
53cabad7
JB		 4828 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4829 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4830 return -EINVAL;
4831 params.p2p_ctwindow =
4832 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4833 if (params.p2p_ctwindow < 0)
4834 return -EINVAL;
4835 if (params.p2p_ctwindow != 0 &&
4836 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4837 return -EINVAL;
4838 }
4839
4840 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4841 u8 tmp;
4842
4843 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4844 return -EINVAL;
4845 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4846 if (tmp > 1)
4847 return -EINVAL;
4848 params.p2p_opp_ps = tmp;
4849 if (params.p2p_opp_ps &&
4850 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4851 return -EINVAL;
4852 }
4853
4c476991
JB		 4854 if (!rdev->ops->change_bss)
4855 return -EOPNOTSUPP;
9f1ba906 4856
074ac8df 4857 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4858 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4859 return -EOPNOTSUPP;
3b85875a 4860
c56589ed
SW		 4861 wdev_lock(wdev);
4862 err = rdev_change_bss(rdev, dev, &params);
4863 wdev_unlock(wdev);
4864
4865 return err;
9f1ba906
JM		 4866}
4867
b54452b0 4868static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4869 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4870 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4871 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4872 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4873 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4874 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4875 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4876};
4877
4878static int parse_reg_rule(struct nlattr *tb[],
4879 struct ieee80211_reg_rule *reg_rule)
4880{
4881 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4882 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4883
4884 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4885 return -EINVAL;
4886 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4887 return -EINVAL;
4888 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4889 return -EINVAL;
b0dfd2ea
JD		 4890 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4891 return -EINVAL;
b2e1b302
LR		 4892 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4893 return -EINVAL;
4894
4895 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4896
4897 freq_range->start_freq_khz =
4898 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4899 freq_range->end_freq_khz =
4900 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4901 freq_range->max_bandwidth_khz =
4902 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4903
4904 power_rule->max_eirp =
4905 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4906
4907 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4908 power_rule->max_antenna_gain =
4909 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4910
089027e5
JD		 4911 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4912 reg_rule->dfs_cac_ms =
4913 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4914
b2e1b302
LR		 4915 return 0;
4916}
4917
4918static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4919{
b2e1b302 4920 char *data = NULL;
57b5ce07 4921 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4922
80778f18
LR		 4923 /*
4924 * You should only get this when cfg80211 hasn't yet initialized
4925 * completely when built-in to the kernel right between the time
4926 * window between nl80211_init() and regulatory_init(), if that is
4927 * even possible.
4928 */
458f4f9e 4929 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4930 return -EINPROGRESS;
80778f18 4931
57b5ce07
LR		 4932 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4933 user_reg_hint_type =
4934 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4935 else
4936 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4937
4938 switch (user_reg_hint_type) {
4939 case NL80211_USER_REG_HINT_USER:
4940 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4941 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4942 return -EINVAL;
4943
4944 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4945 return regulatory_hint_user(data, user_reg_hint_type);
4946 case NL80211_USER_REG_HINT_INDOOR:
4947 return regulatory_hint_indoor_user();
57b5ce07
LR		 4948 default:
4949 return -EINVAL;
4950 }
b2e1b302
LR		 4951}
4952
24bdd9f4 4953static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4954 struct genl_info *info)
93da9cc1 4955{
4c476991 4956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4957 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4958 struct wireless_dev *wdev = dev->ieee80211_ptr;
4959 struct mesh_config cur_params;
4960 int err = 0;
93da9cc1 4961 void *hdr;
4962 struct nlattr *pinfoattr;
4963 struct sk_buff *msg;
4964
29cbe68c
JB		 4965 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4966 return -EOPNOTSUPP;
4967
24bdd9f4 4968 if (!rdev->ops->get_mesh_config)
4c476991 4969 return -EOPNOTSUPP;
f3f92586 4970
29cbe68c
JB		 4971 wdev_lock(wdev);
4972 /* If not connected, get default parameters */
4973 if (!wdev->mesh_id_len)
4974 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4975 else
e35e4d28 4976 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4977 wdev_unlock(wdev);
4978
93da9cc1 4979 if (err)
4c476991 4980 return err;
93da9cc1 4981
4982 /* Draw up a netlink message to send back */
fd2120ca 4983 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4984 if (!msg)
4985 return -ENOMEM;
15e47304 4986 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4987 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4988 if (!hdr)
efe1cf0c 4989 goto out;
24bdd9f4 4990 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4991 if (!pinfoattr)
4992 goto nla_put_failure;
9360ffd1
DM		 4993 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4994 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4995 cur_params.dot11MeshRetryTimeout) ||
4996 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4997 cur_params.dot11MeshConfirmTimeout) ||
4998 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4999 cur_params.dot11MeshHoldingTimeout) ||
5000 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5001 cur_params.dot11MeshMaxPeerLinks) ||
5002 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5003 cur_params.dot11MeshMaxRetries) ||
5004 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5005 cur_params.dot11MeshTTL) ||
5006 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5007 cur_params.element_ttl) ||
5008 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5009 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5010 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5011 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5012 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5013 cur_params.dot11MeshHWMPmaxPREQretries) ||
5014 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5015 cur_params.path_refresh_time) ||
5016 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5017 cur_params.min_discovery_timeout) ||
5018 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5019 cur_params.dot11MeshHWMPactivePathTimeout) ||
5020 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5021 cur_params.dot11MeshHWMPpreqMinInterval) ||
5022 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5023 cur_params.dot11MeshHWMPperrMinInterval) ||
5024 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5025 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5026 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5027 cur_params.dot11MeshHWMPRootMode) ||
5028 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5029 cur_params.dot11MeshHWMPRannInterval) ||
5030 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5031 cur_params.dot11MeshGateAnnouncementProtocol) ||
5032 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5033 cur_params.dot11MeshForwarding) ||
5034 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5035 cur_params.rssi_threshold) ||
5036 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5037 cur_params.ht_opmode) ||
5038 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5039 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5040 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5041 cur_params.dot11MeshHWMProotInterval) ||
5042 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5043 cur_params.dot11MeshHWMPconfirmationInterval) ||
5044 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5045 cur_params.power_mode) ||
5046 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5047 cur_params.dot11MeshAwakeWindowDuration) ||
5048 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5049 cur_params.plink_timeout))
9360ffd1 5050 goto nla_put_failure;
93da9cc1 5051 nla_nest_end(msg, pinfoattr);
5052 genlmsg_end(msg, hdr);
4c476991 5053 return genlmsg_reply(msg, info);
93da9cc1 5054
3b85875a 5055 nla_put_failure:
93da9cc1 5056 genlmsg_cancel(msg, hdr);
efe1cf0c 5057 out:
d080e275 5058 nlmsg_free(msg);
4c476991 5059 return -ENOBUFS;
93da9cc1 5060}
5061
b54452b0 5062static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5063 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5064 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5065 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5066 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5067 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5068 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5069 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5070 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5071 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5072 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5073 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5074 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5075 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5076 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5077 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5078 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5079 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5080 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5081 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5082 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5083 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5084 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5085 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5086 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5087 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5088 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5089 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5090 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5091};
5092
c80d545d
JC		 5093static const struct nla_policy
5094 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5095 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5096 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5097 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5098 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5099 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5100 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5101 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5102 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5103 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5104};
5105
24bdd9f4 5106static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5107 struct mesh_config *cfg,
5108 u32 *mask_out)
93da9cc1 5109{
93da9cc1 5110 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5111 u32 mask = 0;
93da9cc1 5112
ea54fba2
MP		 5113#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5114do { \
5115 if (tb[attr]) { \
5116 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5117 return -EINVAL; \
5118 cfg->param = fn(tb[attr]); \
5119 mask |= (1 << (attr - 1)); \
5120 } \
5121} while (0)
bd90fdcc
JB		 5122
5123
24bdd9f4 5124 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5125 return -EINVAL;
5126 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5127 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5128 nl80211_meshconf_params_policy))
93da9cc1 5129 return -EINVAL;
5130
93da9cc1 5131 /* This makes sure that there aren't more than 32 mesh config
5132 * parameters (otherwise our bitfield scheme would not work.) */
5133 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5134
5135 /* Fill in the params struct */
ea54fba2 5136 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5137 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5138 nla_get_u16);
ea54fba2 5139 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5140 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5141 nla_get_u16);
ea54fba2 5142 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5143 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5144 nla_get_u16);
ea54fba2 5145 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5146 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5147 nla_get_u16);
ea54fba2 5148 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5149 mask, NL80211_MESHCONF_MAX_RETRIES,
5150 nla_get_u8);
ea54fba2 5151 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5152 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5153 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5154 mask, NL80211_MESHCONF_ELEMENT_TTL,
5155 nla_get_u8);
ea54fba2 5156 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5157 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5158 nla_get_u8);
ea54fba2
MP		 5159 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5160 1, 255, mask,
a4f606ea
CYY		 5161 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5162 nla_get_u32);
ea54fba2 5163 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5164 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5165 nla_get_u8);
ea54fba2 5166 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5167 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5168 nla_get_u32);
ea54fba2 5169 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5170 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5171 nla_get_u16);
ea54fba2
MP		 5172 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5173 1, 65535, mask,
a4f606ea
CYY		 5174 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5175 nla_get_u32);
93da9cc1 5176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5177 1, 65535, mask,
5178 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5179 nla_get_u16);
dca7e943 5180 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5181 1, 65535, mask,
5182 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5183 nla_get_u16);
93da9cc1 5184 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5185 dot11MeshHWMPnetDiameterTraversalTime,
5186 1, 65535, mask,
a4f606ea
CYY		 5187 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5188 nla_get_u16);
ea54fba2
MP		 5189 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5190 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5191 nla_get_u8);
5192 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5193 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5194 nla_get_u16);
63c5723b 5195 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5196 dot11MeshGateAnnouncementProtocol, 0, 1,
5197 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5198 nla_get_u8);
ea54fba2 5199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5200 mask, NL80211_MESHCONF_FORWARDING,
5201 nla_get_u8);
83374fe9 5202 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5203 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5204 nla_get_s32);
ea54fba2 5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5206 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5207 nla_get_u16);
5208 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5209 1, 65535, mask,
ac1073a6
CYY		 5210 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5211 nla_get_u32);
ea54fba2 5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5213 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5214 nla_get_u16);
5215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5216 dot11MeshHWMPconfirmationInterval,
5217 1, 65535, mask,
728b19e5 5218 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5219 nla_get_u16);
3b1c5a53
MP		 5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5221 NL80211_MESH_POWER_ACTIVE,
5222 NL80211_MESH_POWER_MAX,
5223 mask, NL80211_MESHCONF_POWER_MODE,
5224 nla_get_u32);
5225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5226 0, 65535, mask,
5227 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5229 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5230 nla_get_u32);
bd90fdcc
JB		 5231 if (mask_out)
5232 *mask_out = mask;
c80d545d 5233
bd90fdcc
JB		 5234 return 0;
5235
5236#undef FILL_IN_MESH_PARAM_IF_SET
5237}
5238
c80d545d
JC		 5239static int nl80211_parse_mesh_setup(struct genl_info *info,
5240 struct mesh_setup *setup)
5241{
bb2798d4 5242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5243 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5244
5245 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5246 return -EINVAL;
5247 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5248 info->attrs[NL80211_ATTR_MESH_SETUP],
5249 nl80211_mesh_setup_params_policy))
5250 return -EINVAL;
5251
d299a1f2
JC		 5252 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5253 setup->sync_method =
5254 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5255 IEEE80211_SYNC_METHOD_VENDOR :
5256 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5257
c80d545d
JC		 5258 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5259 setup->path_sel_proto =
5260 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5261 IEEE80211_PATH_PROTOCOL_VENDOR :
5262 IEEE80211_PATH_PROTOCOL_HWMP;
5263
5264 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5265 setup->path_metric =
5266 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5267 IEEE80211_PATH_METRIC_VENDOR :
5268 IEEE80211_PATH_METRIC_AIRTIME;
5269
581a8b0f
JC		 5270
5271 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5272 struct nlattr *ieattr =
581a8b0f 5273 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5274 if (!is_valid_ie_attr(ieattr))
5275 return -EINVAL;
581a8b0f
JC		 5276 setup->ie = nla_data(ieattr);
5277 setup->ie_len = nla_len(ieattr);
c80d545d 5278 }
bb2798d4
TP		 5279 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5280 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5281 return -EINVAL;
5282 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5283 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5284 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5285 if (setup->is_secure)
5286 setup->user_mpm = true;
c80d545d 5287
6e16d90b
CT		 5288 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5289 if (!setup->user_mpm)
5290 return -EINVAL;
5291 setup->auth_id =
5292 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5293 }
5294
c80d545d
JC		 5295 return 0;
5296}
5297
24bdd9f4 5298static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5299 struct genl_info *info)
bd90fdcc
JB		 5300{
5301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5302 struct net_device *dev = info->user_ptr[1];
29cbe68c 5303 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5304 struct mesh_config cfg;
5305 u32 mask;
5306 int err;
5307
29cbe68c
JB		 5308 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5309 return -EOPNOTSUPP;
5310
24bdd9f4 5311 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5312 return -EOPNOTSUPP;
5313
24bdd9f4 5314 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5315 if (err)
5316 return err;
5317
29cbe68c
JB		 5318 wdev_lock(wdev);
5319 if (!wdev->mesh_id_len)
5320 err = -ENOLINK;
5321
5322 if (!err)
e35e4d28 5323 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5324
5325 wdev_unlock(wdev);
5326
5327 return err;
93da9cc1 5328}
5329
f130347c
LR		 5330static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5331{
458f4f9e 5332 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5333 struct sk_buff *msg;
5334 void *hdr = NULL;
5335 struct nlattr *nl_reg_rules;
5336 unsigned int i;
f130347c
LR		 5337
5338 if (!cfg80211_regdomain)
5fe231e8 5339 return -EINVAL;
f130347c 5340
fd2120ca 5341 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5342 if (!msg)
5343 return -ENOBUFS;
f130347c 5344
15e47304 5345 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5346 NL80211_CMD_GET_REG);
5347 if (!hdr)
efe1cf0c 5348 goto put_failure;
f130347c 5349
57b5ce07
LR		 5350 if (reg_last_request_cell_base() &&
5351 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5352 NL80211_USER_REG_HINT_CELL_BASE))
5353 goto nla_put_failure;
5354
458f4f9e
JB		 5355 rcu_read_lock();
5356 regdom = rcu_dereference(cfg80211_regdomain);
5357
5358 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5359 (regdom->dfs_region &&
5360 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5361 goto nla_put_failure_rcu;
5362
f130347c
LR		 5363 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5364 if (!nl_reg_rules)
458f4f9e 5365 goto nla_put_failure_rcu;
f130347c 5366
458f4f9e 5367 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5368 struct nlattr *nl_reg_rule;
5369 const struct ieee80211_reg_rule *reg_rule;
5370 const struct ieee80211_freq_range *freq_range;
5371 const struct ieee80211_power_rule *power_rule;
97524820 5372 unsigned int max_bandwidth_khz;
f130347c 5373
458f4f9e 5374 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5375 freq_range = &reg_rule->freq_range;
5376 power_rule = &reg_rule->power_rule;
5377
5378 nl_reg_rule = nla_nest_start(msg, i);
5379 if (!nl_reg_rule)
458f4f9e 5380 goto nla_put_failure_rcu;
f130347c 5381
97524820
JD		 5382 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5383 if (!max_bandwidth_khz)
5384 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5385 reg_rule);
5386
9360ffd1
DM		 5387 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5388 reg_rule->flags) ||
5389 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5390 freq_range->start_freq_khz) ||
5391 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5392 freq_range->end_freq_khz) ||
5393 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5394 max_bandwidth_khz) ||
9360ffd1
DM		 5395 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5396 power_rule->max_antenna_gain) ||
5397 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5398 power_rule->max_eirp) ||
5399 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5400 reg_rule->dfs_cac_ms))
458f4f9e 5401 goto nla_put_failure_rcu;
f130347c
LR		 5402
5403 nla_nest_end(msg, nl_reg_rule);
5404 }
458f4f9e 5405 rcu_read_unlock();
f130347c
LR		 5406
5407 nla_nest_end(msg, nl_reg_rules);
5408
5409 genlmsg_end(msg, hdr);
5fe231e8 5410 return genlmsg_reply(msg, info);
f130347c 5411
458f4f9e
JB		 5412nla_put_failure_rcu:
5413 rcu_read_unlock();
f130347c
LR		 5414nla_put_failure:
5415 genlmsg_cancel(msg, hdr);
efe1cf0c 5416put_failure:
d080e275 5417 nlmsg_free(msg);
5fe231e8 5418 return -EMSGSIZE;
f130347c
LR		 5419}
5420
b2e1b302
LR		 5421static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5422{
5423 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5424 struct nlattr *nl_reg_rule;
ea372c54
JB		 5425 char *alpha2;
5426 int rem_reg_rules, r;
b2e1b302 5427 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5428 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5429 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5430
5431 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5432 return -EINVAL;
5433
5434 if (!info->attrs[NL80211_ATTR_REG_RULES])
5435 return -EINVAL;
5436
5437 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5438
8b60b078
LR		 5439 if (info->attrs[NL80211_ATTR_DFS_REGION])
5440 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5441
b2e1b302 5442 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5443 rem_reg_rules) {
b2e1b302
LR		 5444 num_rules++;
5445 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5446 return -EINVAL;
b2e1b302
LR		 5447 }
5448
e438768f
LR		 5449 if (!reg_is_valid_request(alpha2))
5450 return -EINVAL;
5451
b2e1b302 5452 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5453 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5454
5455 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5456 if (!rd)
5457 return -ENOMEM;
b2e1b302
LR		 5458
5459 rd->n_reg_rules = num_rules;
5460 rd->alpha2[0] = alpha2[0];
5461 rd->alpha2[1] = alpha2[1];
5462
8b60b078
LR		 5463 /*
5464 * Disable DFS master mode if the DFS region was
5465 * not supported or known on this kernel.
5466 */
5467 if (reg_supported_dfs_region(dfs_region))
5468 rd->dfs_region = dfs_region;
5469
b2e1b302 5470 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5471 rem_reg_rules) {
ae811e21
JB		 5472 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5473 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5474 reg_rule_policy);
5475 if (r)
5476 goto bad_reg;
b2e1b302
LR		 5477 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5478 if (r)
5479 goto bad_reg;
5480
5481 rule_idx++;
5482
d0e18f83
LR		 5483 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5484 r = -EINVAL;
b2e1b302 5485 goto bad_reg;
d0e18f83 5486 }
b2e1b302
LR		 5487 }
5488
b2e1b302 5489 r = set_regdom(rd);
6913b49a 5490 /* set_regdom took ownership */
1a919318 5491 rd = NULL;
b2e1b302 5492
d2372b31 5493 bad_reg:
b2e1b302 5494 kfree(rd);
d0e18f83 5495 return r;
b2e1b302
LR		 5496}
5497
83f5e2cf
JB		 5498static int validate_scan_freqs(struct nlattr *freqs)
5499{
5500 struct nlattr *attr1, *attr2;
5501 int n_channels = 0, tmp1, tmp2;
5502
5503 nla_for_each_nested(attr1, freqs, tmp1) {
5504 n_channels++;
5505 /*
5506 * Some hardware has a limited channel list for
5507 * scanning, and it is pretty much nonsensical
5508 * to scan for a channel twice, so disallow that
5509 * and don't require drivers to check that the
5510 * channel list they get isn't longer than what
5511 * they can scan, as long as they can scan all
5512 * the channels they registered at once.
5513 */
5514 nla_for_each_nested(attr2, freqs, tmp2)
5515 if (attr1 != attr2 &&
5516 nla_get_u32(attr1) == nla_get_u32(attr2))
5517 return 0;
5518 }
5519
5520 return n_channels;
5521}
5522
ad2b26ab
JB		 5523static int nl80211_parse_random_mac(struct nlattr **attrs,
5524 u8 *mac_addr, u8 *mac_addr_mask)
5525{
5526 int i;
5527
5528 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5529 memset(mac_addr, 0, ETH_ALEN);
5530 memset(mac_addr_mask, 0, ETH_ALEN);
5531 mac_addr[0] = 0x2;
5532 mac_addr_mask[0] = 0x3;
5533
5534 return 0;
5535 }
5536
5537 /* need both or none */
5538 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5539 return -EINVAL;
5540
5541 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5542 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5543
5544 /* don't allow or configure an mcast address */
5545 if (!is_multicast_ether_addr(mac_addr_mask) ||
5546 is_multicast_ether_addr(mac_addr))
5547 return -EINVAL;
5548
5549 /*
5550 * allow users to pass a MAC address that has bits set outside
5551 * of the mask, but don't bother drivers with having to deal
5552 * with such bits
5553 */
5554 for (i = 0; i < ETH_ALEN; i++)
5555 mac_addr[i] &= mac_addr_mask[i];
5556
5557 return 0;
5558}
5559
2a519311
JB		 5560static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5561{
4c476991 5562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5563 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5564 struct cfg80211_scan_request *request;
2a519311
JB		 5565 struct nlattr *attr;
5566 struct wiphy *wiphy;
83f5e2cf 5567 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5568 size_t ie_len;
2a519311 5569
f4a11bb0
JB		 5570 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5571 return -EINVAL;
5572
79c97e97 5573 wiphy = &rdev->wiphy;
2a519311 5574
4c476991
JB		 5575 if (!rdev->ops->scan)
5576 return -EOPNOTSUPP;
2a519311 5577
f9d15d16 5578 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5579 err = -EBUSY;
5580 goto unlock;
5581 }
2a519311
JB		 5582
5583 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5584 n_channels = validate_scan_freqs(
5585 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5586 if (!n_channels) {
5587 err = -EINVAL;
5588 goto unlock;
5589 }
2a519311 5590 } else {
bdfbec2d 5591 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5592 }
5593
5594 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5595 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5596 n_ssids++;
5597
f9f47529
JB		 5598 if (n_ssids > wiphy->max_scan_ssids) {
5599 err = -EINVAL;
5600 goto unlock;
5601 }
2a519311 5602
70692ad2
JM		 5603 if (info->attrs[NL80211_ATTR_IE])
5604 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5605 else
5606 ie_len = 0;
5607
f9f47529
JB		 5608 if (ie_len > wiphy->max_scan_ie_len) {
5609 err = -EINVAL;
5610 goto unlock;
5611 }
18a83659 5612
2a519311 5613 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5614 + sizeof(*request->ssids) * n_ssids
5615 + sizeof(*request->channels) * n_channels
70692ad2 5616 + ie_len, GFP_KERNEL);
f9f47529
JB		 5617 if (!request) {
5618 err = -ENOMEM;
5619 goto unlock;
5620 }
2a519311 5621
2a519311 5622 if (n_ssids)
5ba63533 5623 request->ssids = (void *)&request->channels[n_channels];
2a519311 5624 request->n_ssids = n_ssids;
70692ad2
JM		 5625 if (ie_len) {
5626 if (request->ssids)
5627 request->ie = (void *)(request->ssids + n_ssids);
5628 else
5629 request->ie = (void *)(request->channels + n_channels);
5630 }
2a519311 5631
584991dc 5632 i = 0;
2a519311
JB		 5633 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5634 /* user specified, bail out if channel not found */
2a519311 5635 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5636 struct ieee80211_channel *chan;
5637
5638 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5639
5640 if (!chan) {
2a519311
JB		 5641 err = -EINVAL;
5642 goto out_free;
5643 }
584991dc
JB		 5644
5645 /* ignore disabled channels */
5646 if (chan->flags & IEEE80211_CHAN_DISABLED)
5647 continue;
5648
5649 request->channels[i] = chan;
2a519311
JB		 5650 i++;
5651 }
5652 } else {
34850ab2
JB		 5653 enum ieee80211_band band;
5654
2a519311 5655 /* all channels */
2a519311
JB		 5656 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5657 int j;
5658 if (!wiphy->bands[band])
5659 continue;
5660 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5661 struct ieee80211_channel *chan;
5662
5663 chan = &wiphy->bands[band]->channels[j];
5664
5665 if (chan->flags & IEEE80211_CHAN_DISABLED)
5666 continue;
5667
5668 request->channels[i] = chan;
2a519311
JB		 5669 i++;
5670 }
5671 }
5672 }
5673
584991dc
JB		 5674 if (!i) {
5675 err = -EINVAL;
5676 goto out_free;
5677 }
5678
5679 request->n_channels = i;
5680
2a519311
JB		 5681 i = 0;
5682 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5683 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5684 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5685 err = -EINVAL;
5686 goto out_free;
5687 }
57a27e1d 5688 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5689 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5690 i++;
5691 }
5692 }
5693
70692ad2
JM		 5694 if (info->attrs[NL80211_ATTR_IE]) {
5695 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5696 memcpy((void *)request->ie,
5697 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5698 request->ie_len);
5699 }
5700
34850ab2 5701 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5702 if (wiphy->bands[i])
5703 request->rates[i] =
5704 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5705
5706 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5707 nla_for_each_nested(attr,
5708 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5709 tmp) {
5710 enum ieee80211_band band = nla_type(attr);
5711
84404623 5712 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5713 err = -EINVAL;
5714 goto out_free;
5715 }
1b09cd82
FF		 5716
5717 if (!wiphy->bands[band])
5718 continue;
5719
34850ab2
JB		 5720 err = ieee80211_get_ratemask(wiphy->bands[band],
5721 nla_data(attr),
5722 nla_len(attr),
5723 &request->rates[band]);
5724 if (err)
5725 goto out_free;
5726 }
5727 }
5728
46856bbf 5729 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5730 request->flags = nla_get_u32(
5731 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5732 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5733 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5734 err = -EOPNOTSUPP;
5735 goto out_free;
5736 }
ad2b26ab
JB		 5737
5738 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5739 if (!(wiphy->features &
5740 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5741 err = -EOPNOTSUPP;
5742 goto out_free;
5743 }
5744
5745 if (wdev->current_bss) {
5746 err = -EOPNOTSUPP;
5747 goto out_free;
5748 }
5749
5750 err = nl80211_parse_random_mac(info->attrs,
5751 request->mac_addr,
5752 request->mac_addr_mask);
5753 if (err)
5754 goto out_free;
5755 }
46856bbf 5756 }
ed473771 5757
e9f935e3
RM		 5758 request->no_cck =
5759 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5760
fd014284 5761 request->wdev = wdev;
79c97e97 5762 request->wiphy = &rdev->wiphy;
15d6030b 5763 request->scan_start = jiffies;
2a519311 5764
79c97e97 5765 rdev->scan_req = request;
e35e4d28 5766 err = rdev_scan(rdev, request);
2a519311 5767
463d0183 5768 if (!err) {
fd014284
JB		 5769 nl80211_send_scan_start(rdev, wdev);
5770 if (wdev->netdev)
5771 dev_hold(wdev->netdev);
4c476991 5772 } else {
2a519311 5773 out_free:
79c97e97 5774 rdev->scan_req = NULL;
2a519311
JB		 5775 kfree(request);
5776 }
3b85875a 5777
f9f47529 5778 unlock:
2a519311
JB		 5779 return err;
5780}
5781
256da02d 5782static struct cfg80211_sched_scan_request *
ad2b26ab 5783nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5784 struct nlattr **attrs)
807f8a8c
LC		 5785{
5786 struct cfg80211_sched_scan_request *request;
807f8a8c 5787 struct nlattr *attr;
a1f1c21c 5788 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5789 u32 interval;
807f8a8c
LC		 5790 enum ieee80211_band band;
5791 size_t ie_len;
a1f1c21c 5792 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5793 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5794
256da02d
LC		 5795 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5796 return ERR_PTR(-EINVAL);
807f8a8c 5797
256da02d
LC		 5798 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5799 return ERR_PTR(-EINVAL);
bbe6ad6d 5800
256da02d 5801 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5802 if (interval == 0)
256da02d 5803 return ERR_PTR(-EINVAL);
807f8a8c 5804
256da02d 5805 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5806 n_channels = validate_scan_freqs(
256da02d 5807 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5808 if (!n_channels)
256da02d 5809 return ERR_PTR(-EINVAL);
807f8a8c 5810 } else {
bdfbec2d 5811 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5812 }
5813
256da02d
LC		 5814 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5815 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5816 tmp)
5817 n_ssids++;
5818
93b6aa69 5819 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5820 return ERR_PTR(-EINVAL);
807f8a8c 5821
ea73cbce
JB		 5822 /*
5823 * First, count the number of 'real' matchsets. Due to an issue with
5824 * the old implementation, matchsets containing only the RSSI attribute
5825 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5826 * RSSI for all matchsets, rather than their own matchset for reporting
5827 * all APs with a strong RSSI. This is needed to be compatible with
5828 * older userspace that treated a matchset with only the RSSI as the
5829 * global RSSI for all other matchsets - if there are other matchsets.
5830 */
256da02d 5831 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5832 nla_for_each_nested(attr,
256da02d 5833 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5834 tmp) {
5835 struct nlattr *rssi;
5836
5837 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5838 nla_data(attr), nla_len(attr),
5839 nl80211_match_policy);
5840 if (err)
256da02d 5841 return ERR_PTR(err);
ea73cbce
JB		 5842 /* add other standalone attributes here */
5843 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5844 n_match_sets++;
5845 continue;
5846 }
5847 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5848 if (rssi)
5849 default_match_rssi = nla_get_s32(rssi);
5850 }
5851 }
5852
5853 /* However, if there's no other matchset, add the RSSI one */
5854 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5855 n_match_sets = 1;
a1f1c21c
LC		 5856
5857 if (n_match_sets > wiphy->max_match_sets)
256da02d 5858 return ERR_PTR(-EINVAL);
a1f1c21c 5859
256da02d
LC		 5860 if (attrs[NL80211_ATTR_IE])
5861 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 5862 else
5863 ie_len = 0;
5864
5a865bad 5865 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 5866 return ERR_PTR(-EINVAL);
c10841ca 5867
807f8a8c 5868 request = kzalloc(sizeof(*request)
a2cd43c5 5869 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5870 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5871 + sizeof(*request->channels) * n_channels
807f8a8c 5872 + ie_len, GFP_KERNEL);
256da02d
LC		 5873 if (!request)
5874 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 5875
5876 if (n_ssids)
5877 request->ssids = (void *)&request->channels[n_channels];
5878 request->n_ssids = n_ssids;
5879 if (ie_len) {
5880 if (request->ssids)
5881 request->ie = (void *)(request->ssids + n_ssids);
5882 else
5883 request->ie = (void *)(request->channels + n_channels);
5884 }
5885
a1f1c21c
LC		 5886 if (n_match_sets) {
5887 if (request->ie)
5888 request->match_sets = (void *)(request->ie + ie_len);
5889 else if (request->ssids)
5890 request->match_sets =
5891 (void *)(request->ssids + n_ssids);
5892 else
5893 request->match_sets =
5894 (void *)(request->channels + n_channels);
5895 }
5896 request->n_match_sets = n_match_sets;
5897
807f8a8c 5898 i = 0;
256da02d 5899 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 5900 /* user specified, bail out if channel not found */
5901 nla_for_each_nested(attr,
256da02d 5902 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 5903 tmp) {
5904 struct ieee80211_channel *chan;
5905
5906 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5907
5908 if (!chan) {
5909 err = -EINVAL;
5910 goto out_free;
5911 }
5912
5913 /* ignore disabled channels */
5914 if (chan->flags & IEEE80211_CHAN_DISABLED)
5915 continue;
5916
5917 request->channels[i] = chan;
5918 i++;
5919 }
5920 } else {
5921 /* all channels */
5922 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5923 int j;
5924 if (!wiphy->bands[band])
5925 continue;
5926 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5927 struct ieee80211_channel *chan;
5928
5929 chan = &wiphy->bands[band]->channels[j];
5930
5931 if (chan->flags & IEEE80211_CHAN_DISABLED)
5932 continue;
5933
5934 request->channels[i] = chan;
5935 i++;
5936 }
5937 }
5938 }
5939
5940 if (!i) {
5941 err = -EINVAL;
5942 goto out_free;
5943 }
5944
5945 request->n_channels = i;
5946
5947 i = 0;
256da02d
LC		 5948 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
5949 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 5950 tmp) {
57a27e1d 5951 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5952 err = -EINVAL;
5953 goto out_free;
5954 }
57a27e1d 5955 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5956 memcpy(request->ssids[i].ssid, nla_data(attr),
5957 nla_len(attr));
807f8a8c
LC		 5958 i++;
5959 }
5960 }
5961
a1f1c21c 5962 i = 0;
256da02d 5963 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5964 nla_for_each_nested(attr,
256da02d 5965 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 5966 tmp) {
88e920b4 5967 struct nlattr *ssid, *rssi;
a1f1c21c 5968
ae811e21
JB		 5969 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5970 nla_data(attr), nla_len(attr),
5971 nl80211_match_policy);
5972 if (err)
5973 goto out_free;
4a4ab0d7 5974 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5975 if (ssid) {
ea73cbce
JB		 5976 if (WARN_ON(i >= n_match_sets)) {
5977 /* this indicates a programming error,
5978 * the loop above should have verified
5979 * things properly
5980 */
5981 err = -EINVAL;
5982 goto out_free;
5983 }
5984
a1f1c21c
LC		 5985 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5986 err = -EINVAL;
5987 goto out_free;
5988 }
5989 memcpy(request->match_sets[i].ssid.ssid,
5990 nla_data(ssid), nla_len(ssid));
5991 request->match_sets[i].ssid.ssid_len =
5992 nla_len(ssid);
ea73cbce
JB		 5993 /* special attribute - old implemenation w/a */
5994 request->match_sets[i].rssi_thold =
5995 default_match_rssi;
5996 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5997 if (rssi)
5998 request->match_sets[i].rssi_thold =
5999 nla_get_s32(rssi);
a1f1c21c
LC		 6000 }
6001 i++;
6002 }
ea73cbce
JB		 6003
6004 /* there was no other matchset, so the RSSI one is alone */
6005 if (i == 0)
6006 request->match_sets[0].rssi_thold = default_match_rssi;
6007
6008 request->min_rssi_thold = INT_MAX;
6009 for (i = 0; i < n_match_sets; i++)
6010 request->min_rssi_thold =
6011 min(request->match_sets[i].rssi_thold,
6012 request->min_rssi_thold);
6013 } else {
6014 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6015 }
6016
9900e484
JB		 6017 if (ie_len) {
6018 request->ie_len = ie_len;
807f8a8c 6019 memcpy((void *)request->ie,
256da02d 6020 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6021 request->ie_len);
6022 }
6023
256da02d 6024 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6025 request->flags = nla_get_u32(
256da02d 6026 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6027 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6028 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6029 err = -EOPNOTSUPP;
6030 goto out_free;
6031 }
ad2b26ab
JB		 6032
6033 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6034 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6035
6036 if (!wdev) /* must be net-detect */
6037 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6038
6039 if (!(wiphy->features & flg)) {
6040 err = -EOPNOTSUPP;
6041 goto out_free;
6042 }
6043
6044 if (wdev && wdev->current_bss) {
6045 err = -EOPNOTSUPP;
6046 goto out_free;
6047 }
6048
6049 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6050 request->mac_addr_mask);
6051 if (err)
6052 goto out_free;
6053 }
46856bbf 6054 }
ed473771 6055
bbe6ad6d 6056 request->interval = interval;
15d6030b 6057 request->scan_start = jiffies;
807f8a8c 6058
256da02d 6059 return request;
807f8a8c
LC		 6060
6061out_free:
6062 kfree(request);
256da02d
LC		 6063 return ERR_PTR(err);
6064}
6065
6066static int nl80211_start_sched_scan(struct sk_buff *skb,
6067 struct genl_info *info)
6068{
6069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6070 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6071 struct wireless_dev *wdev = dev->ieee80211_ptr;
256da02d
LC		 6072 int err;
6073
6074 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6075 !rdev->ops->sched_scan_start)
6076 return -EOPNOTSUPP;
6077
6078 if (rdev->sched_scan_req)
6079 return -EINPROGRESS;
6080
ad2b26ab 6081 rdev->sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
256da02d
LC		 6082 info->attrs);
6083 err = PTR_ERR_OR_ZERO(rdev->sched_scan_req);
6084 if (err)
6085 goto out_err;
6086
6087 err = rdev_sched_scan_start(rdev, dev, rdev->sched_scan_req);
6088 if (err)
6089 goto out_free;
6090
6091 rdev->sched_scan_req->dev = dev;
6092 rdev->sched_scan_req->wiphy = &rdev->wiphy;
6093
6094 nl80211_send_sched_scan(rdev, dev,
6095 NL80211_CMD_START_SCHED_SCAN);
6096 return 0;
6097
6098out_free:
6099 kfree(rdev->sched_scan_req);
6100out_err:
6101 rdev->sched_scan_req = NULL;
807f8a8c
LC		 6102 return err;
6103}
6104
6105static int nl80211_stop_sched_scan(struct sk_buff *skb,
6106 struct genl_info *info)
6107{
6108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6109
6110 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6111 !rdev->ops->sched_scan_stop)
6112 return -EOPNOTSUPP;
6113
5fe231e8 6114 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6115}
6116
04f39047
SW		 6117static int nl80211_start_radar_detection(struct sk_buff *skb,
6118 struct genl_info *info)
6119{
6120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6121 struct net_device *dev = info->user_ptr[1];
6122 struct wireless_dev *wdev = dev->ieee80211_ptr;
6123 struct cfg80211_chan_def chandef;
55f7435c 6124 enum nl80211_dfs_regions dfs_region;
31559f35 6125 unsigned int cac_time_ms;
04f39047
SW		 6126 int err;
6127
55f7435c
LR		 6128 dfs_region = reg_get_dfs_region(wdev->wiphy);
6129 if (dfs_region == NL80211_DFS_UNSET)
6130 return -EINVAL;
6131
04f39047
SW		 6132 err = nl80211_parse_chandef(rdev, info, &chandef);
6133 if (err)
6134 return err;
6135
ff311bc1
SW		 6136 if (netif_carrier_ok(dev))
6137 return -EBUSY;
6138
04f39047
SW		 6139 if (wdev->cac_started)
6140 return -EBUSY;
6141
2beb6dab 6142 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6143 wdev->iftype);
04f39047
SW		 6144 if (err < 0)
6145 return err;
6146
6147 if (err == 0)
6148 return -EINVAL;
6149
fe7c3a1f 6150 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6151 return -EINVAL;
6152
6153 if (!rdev->ops->start_radar_detection)
6154 return -EOPNOTSUPP;
6155
31559f35
JD		 6156 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6157 if (WARN_ON(!cac_time_ms))
6158 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6159
6160 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6161 cac_time_ms);
04f39047 6162 if (!err) {
9e0e2961 6163 wdev->chandef = chandef;
04f39047
SW		 6164 wdev->cac_started = true;
6165 wdev->cac_start_time = jiffies;
31559f35 6166 wdev->cac_time_ms = cac_time_ms;
04f39047 6167 }
04f39047
SW		 6168 return err;
6169}
6170
16ef1fe2
SW		 6171static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6172{
6173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6174 struct net_device *dev = info->user_ptr[1];
6175 struct wireless_dev *wdev = dev->ieee80211_ptr;
6176 struct cfg80211_csa_settings params;
6177 /* csa_attrs is defined static to avoid waste of stack size - this
6178 * function is called under RTNL lock, so this should not be a problem.
6179 */
6180 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6181 int err;
ee4bc9e7 6182 bool need_new_beacon = false;
9a774c78 6183 int len, i;
252e07ca 6184 u32 cs_count;
16ef1fe2
SW		 6185
6186 if (!rdev->ops->channel_switch ||
6187 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6188 return -EOPNOTSUPP;
6189
ee4bc9e7
SW		 6190 switch (dev->ieee80211_ptr->iftype) {
6191 case NL80211_IFTYPE_AP:
6192 case NL80211_IFTYPE_P2P_GO:
6193 need_new_beacon = true;
6194
6195 /* useless if AP is not running */
6196 if (!wdev->beacon_interval)
1ff79dfa 6197 return -ENOTCONN;
ee4bc9e7
SW		 6198 break;
6199 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6200 if (!wdev->ssid_len)
6201 return -ENOTCONN;
6202 break;
c6da674a 6203 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6204 if (!wdev->mesh_id_len)
6205 return -ENOTCONN;
ee4bc9e7
SW		 6206 break;
6207 default:
16ef1fe2 6208 return -EOPNOTSUPP;
ee4bc9e7 6209 }
16ef1fe2
SW		 6210
6211 memset(&params, 0, sizeof(params));
6212
6213 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6214 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6215 return -EINVAL;
6216
6217 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6218 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6219 return -EINVAL;
6220
252e07ca
LC		 6221 /* Even though the attribute is u32, the specification says
6222 * u8, so let's make sure we don't overflow.
6223 */
6224 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6225 if (cs_count > 255)
6226 return -EINVAL;
6227
6228 params.count = cs_count;
16ef1fe2 6229
ee4bc9e7
SW		 6230 if (!need_new_beacon)
6231 goto skip_beacons;
6232
16ef1fe2
SW		 6233 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6234 if (err)
6235 return err;
6236
6237 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6238 info->attrs[NL80211_ATTR_CSA_IES],
6239 nl80211_policy);
6240 if (err)
6241 return err;
6242
6243 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6244 if (err)
6245 return err;
6246
6247 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6248 return -EINVAL;
6249
9a774c78
AO		 6250 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6251 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6252 return -EINVAL;
6253
9a774c78
AO		 6254 params.n_counter_offsets_beacon = len / sizeof(u16);
6255 if (rdev->wiphy.max_num_csa_counters &&
6256 (params.n_counter_offsets_beacon >
6257 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6258 return -EINVAL;
6259
9a774c78
AO		 6260 params.counter_offsets_beacon =
6261 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6262
6263 /* sanity checks - counters should fit and be the same */
6264 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6265 u16 offset = params.counter_offsets_beacon[i];
6266
6267 if (offset >= params.beacon_csa.tail_len)
6268 return -EINVAL;
6269
6270 if (params.beacon_csa.tail[offset] != params.count)
6271 return -EINVAL;
6272 }
6273
16ef1fe2 6274 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6275 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6276 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6277 return -EINVAL;
6278
9a774c78
AO		 6279 params.n_counter_offsets_presp = len / sizeof(u16);
6280 if (rdev->wiphy.max_num_csa_counters &&
6281 (params.n_counter_offsets_beacon >
6282 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6283 return -EINVAL;
9a774c78
AO		 6284
6285 params.counter_offsets_presp =
6286 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6287
6288 /* sanity checks - counters should fit and be the same */
6289 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6290 u16 offset = params.counter_offsets_presp[i];
6291
6292 if (offset >= params.beacon_csa.probe_resp_len)
6293 return -EINVAL;
6294
6295 if (params.beacon_csa.probe_resp[offset] !=
6296 params.count)
6297 return -EINVAL;
6298 }
16ef1fe2
SW		 6299 }
6300
ee4bc9e7 6301skip_beacons:
16ef1fe2
SW		 6302 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6303 if (err)
6304 return err;
6305
174e0cd2
IP		 6306 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6307 wdev->iftype))
16ef1fe2
SW		 6308 return -EINVAL;
6309
2beb6dab
LC		 6310 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6311 &params.chandef,
6312 wdev->iftype);
6313 if (err < 0)
6314 return err;
6315
dcc6c2f5 6316 if (err > 0)
2beb6dab 6317 params.radar_required = true;
16ef1fe2 6318
16ef1fe2
SW		 6319 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6320 params.block_tx = true;
6321
c56589ed
SW		 6322 wdev_lock(wdev);
6323 err = rdev_channel_switch(rdev, dev, &params);
6324 wdev_unlock(wdev);
6325
6326 return err;
16ef1fe2
SW		 6327}
6328
9720bb3a
JB		 6329static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6330 u32 seq, int flags,
2a519311 6331 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6332 struct wireless_dev *wdev,
6333 struct cfg80211_internal_bss *intbss)
2a519311 6334{
48ab905d 6335 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6336 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6337 void *hdr;
6338 struct nlattr *bss;
48ab905d
JB		 6339
6340 ASSERT_WDEV_LOCK(wdev);
2a519311 6341
15e47304 6342 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6343 NL80211_CMD_NEW_SCAN_RESULTS);
6344 if (!hdr)
6345 return -1;
6346
9720bb3a
JB		 6347 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6348
97990a06
JB		 6349 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6350 goto nla_put_failure;
6351 if (wdev->netdev &&
9360ffd1
DM		 6352 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6353 goto nla_put_failure;
97990a06
JB		 6354 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6355 goto nla_put_failure;
2a519311
JB		 6356
6357 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6358 if (!bss)
6359 goto nla_put_failure;
9360ffd1 6360 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6361 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6362 goto nla_put_failure;
9caf0364
JB		 6363
6364 rcu_read_lock();
0e227084
JB		 6365 /* indicate whether we have probe response data or not */
6366 if (rcu_access_pointer(res->proberesp_ies) &&
6367 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6368 goto fail_unlock_rcu;
6369
6370 /* this pointer prefers to be pointed to probe response data
6371 * but is always valid
6372 */
9caf0364 6373 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6374 if (ies) {
6375 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6376 goto fail_unlock_rcu;
8cef2c9d
JB		 6377 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6378 ies->len, ies->data))
6379 goto fail_unlock_rcu;
9caf0364 6380 }
0e227084
JB		 6381
6382 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6383 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6384 if (ies && ies->from_beacon) {
6385 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6386 goto fail_unlock_rcu;
6387 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6388 ies->len, ies->data))
6389 goto fail_unlock_rcu;
9caf0364
JB		 6390 }
6391 rcu_read_unlock();
6392
9360ffd1
DM		 6393 if (res->beacon_interval &&
6394 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6395 goto nla_put_failure;
6396 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6397 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6398 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6399 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6400 jiffies_to_msecs(jiffies - intbss->ts)))
6401 goto nla_put_failure;
2a519311 6402
77965c97 6403 switch (rdev->wiphy.signal_type) {
2a519311 6404 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6405 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6406 goto nla_put_failure;
2a519311
JB		 6407 break;
6408 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6409 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6410 goto nla_put_failure;
2a519311
JB		 6411 break;
6412 default:
6413 break;
6414 }
6415
48ab905d 6416 switch (wdev->iftype) {
074ac8df 6417 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6418 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6419 if (intbss == wdev->current_bss &&
6420 nla_put_u32(msg, NL80211_BSS_STATUS,
6421 NL80211_BSS_STATUS_ASSOCIATED))
6422 goto nla_put_failure;
48ab905d
JB		 6423 break;
6424 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6425 if (intbss == wdev->current_bss &&
6426 nla_put_u32(msg, NL80211_BSS_STATUS,
6427 NL80211_BSS_STATUS_IBSS_JOINED))
6428 goto nla_put_failure;
48ab905d
JB		 6429 break;
6430 default:
6431 break;
6432 }
6433
2a519311
JB		 6434 nla_nest_end(msg, bss);
6435
6436 return genlmsg_end(msg, hdr);
6437
8cef2c9d
JB		 6438 fail_unlock_rcu:
6439 rcu_read_unlock();
2a519311
JB		 6440 nla_put_failure:
6441 genlmsg_cancel(msg, hdr);
6442 return -EMSGSIZE;
6443}
6444
97990a06 6445static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6446{
48ab905d 6447 struct cfg80211_registered_device *rdev;
2a519311 6448 struct cfg80211_internal_bss *scan;
48ab905d 6449 struct wireless_dev *wdev;
97990a06 6450 int start = cb->args[2], idx = 0;
2a519311
JB		 6451 int err;
6452
97990a06 6453 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6454 if (err)
6455 return err;
2a519311 6456
48ab905d
JB		 6457 wdev_lock(wdev);
6458 spin_lock_bh(&rdev->bss_lock);
6459 cfg80211_bss_expire(rdev);
6460
9720bb3a
JB		 6461 cb->seq = rdev->bss_generation;
6462
48ab905d 6463 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6464 if (++idx <= start)
6465 continue;
9720bb3a 6466 if (nl80211_send_bss(skb, cb,
2a519311 6467 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6468 rdev, wdev, scan) < 0) {
2a519311 6469 idx--;
67748893 6470 break;
2a519311
JB		 6471 }
6472 }
6473
48ab905d
JB		 6474 spin_unlock_bh(&rdev->bss_lock);
6475 wdev_unlock(wdev);
2a519311 6476
97990a06
JB		 6477 cb->args[2] = idx;
6478 nl80211_finish_wdev_dump(rdev);
2a519311 6479
67748893 6480 return skb->len;
2a519311
JB		 6481}
6482
15e47304 6483static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6484 int flags, struct net_device *dev,
6485 struct survey_info *survey)
6486{
6487 void *hdr;
6488 struct nlattr *infoattr;
6489
15e47304 6490 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6491 NL80211_CMD_NEW_SURVEY_RESULTS);
6492 if (!hdr)
6493 return -ENOMEM;
6494
9360ffd1
DM		 6495 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6496 goto nla_put_failure;
61fa713c
HS		 6497
6498 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6499 if (!infoattr)
6500 goto nla_put_failure;
6501
9360ffd1
DM		 6502 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6503 survey->channel->center_freq))
6504 goto nla_put_failure;
6505
6506 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6507 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6508 goto nla_put_failure;
6509 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6510 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6511 goto nla_put_failure;
6512 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6513 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6514 survey->channel_time))
6515 goto nla_put_failure;
6516 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6517 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6518 survey->channel_time_busy))
6519 goto nla_put_failure;
6520 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6521 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6522 survey->channel_time_ext_busy))
6523 goto nla_put_failure;
6524 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6525 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6526 survey->channel_time_rx))
6527 goto nla_put_failure;
6528 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6529 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6530 survey->channel_time_tx))
6531 goto nla_put_failure;
61fa713c
HS		 6532
6533 nla_nest_end(msg, infoattr);
6534
6535 return genlmsg_end(msg, hdr);
6536
6537 nla_put_failure:
6538 genlmsg_cancel(msg, hdr);
6539 return -EMSGSIZE;
6540}
6541
6542static int nl80211_dump_survey(struct sk_buff *skb,
6543 struct netlink_callback *cb)
6544{
6545 struct survey_info survey;
1b8ec87a 6546 struct cfg80211_registered_device *rdev;
97990a06
JB		 6547 struct wireless_dev *wdev;
6548 int survey_idx = cb->args[2];
61fa713c
HS		 6549 int res;
6550
1b8ec87a 6551 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6552 if (res)
6553 return res;
61fa713c 6554
97990a06
JB		 6555 if (!wdev->netdev) {
6556 res = -EINVAL;
6557 goto out_err;
6558 }
6559
1b8ec87a 6560 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6561 res = -EOPNOTSUPP;
6562 goto out_err;
6563 }
6564
6565 while (1) {
1b8ec87a 6566 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6567 if (res == -ENOENT)
6568 break;
6569 if (res)
6570 goto out_err;
6571
180cdc79
LR		 6572 /* Survey without a channel doesn't make sense */
6573 if (!survey.channel) {
6574 res = -EINVAL;
6575 goto out;
6576 }
6577
ea9eba6a 6578 if (survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6579 survey_idx++;
6580 continue;
6581 }
6582
61fa713c 6583 if (nl80211_send_survey(skb,
15e47304 6584 NETLINK_CB(cb->skb).portid,
61fa713c 6585 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6586 wdev->netdev, &survey) < 0)
61fa713c
HS		 6587 goto out;
6588 survey_idx++;
6589 }
6590
6591 out:
97990a06 6592 cb->args[2] = survey_idx;
61fa713c
HS		 6593 res = skb->len;
6594 out_err:
1b8ec87a 6595 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6596 return res;
6597}
6598
b23aa676
SO		 6599static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6600{
6601 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6602 NL80211_WPA_VERSION_2));
6603}
6604
636a5d36
JM		 6605static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6606{
4c476991
JB		 6607 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6608 struct net_device *dev = info->user_ptr[1];
19957bb3 6609 struct ieee80211_channel *chan;
e39e5b5e
JM		 6610 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6611 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6612 enum nl80211_auth_type auth_type;
fffd0934 6613 struct key_parse key;
d5cdfacb 6614 bool local_state_change;
636a5d36 6615
f4a11bb0
JB		 6616 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6617 return -EINVAL;
6618
6619 if (!info->attrs[NL80211_ATTR_MAC])
6620 return -EINVAL;
6621
1778092e
JM		 6622 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6623 return -EINVAL;
6624
19957bb3
JB		 6625 if (!info->attrs[NL80211_ATTR_SSID])
6626 return -EINVAL;
6627
6628 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6629 return -EINVAL;
6630
fffd0934
JB		 6631 err = nl80211_parse_key(info, &key);
6632 if (err)
6633 return err;
6634
6635 if (key.idx >= 0) {
e31b8213
JB		 6636 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6637 return -EINVAL;
fffd0934
JB		 6638 if (!key.p.key || !key.p.key_len)
6639 return -EINVAL;
6640 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6641 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6642 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6643 key.p.key_len != WLAN_KEY_LEN_WEP104))
6644 return -EINVAL;
6645 if (key.idx > 4)
6646 return -EINVAL;
6647 } else {
6648 key.p.key_len = 0;
6649 key.p.key = NULL;
6650 }
6651
afea0b7a
JB		 6652 if (key.idx >= 0) {
6653 int i;
6654 bool ok = false;
6655 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6656 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6657 ok = true;
6658 break;
6659 }
6660 }
4c476991
JB		 6661 if (!ok)
6662 return -EINVAL;
afea0b7a
JB		 6663 }
6664
4c476991
JB		 6665 if (!rdev->ops->auth)
6666 return -EOPNOTSUPP;
636a5d36 6667
074ac8df 6668 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6669 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6670 return -EOPNOTSUPP;
eec60b03 6671
19957bb3 6672 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6673 chan = nl80211_get_valid_chan(&rdev->wiphy,
6674 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6675 if (!chan)
4c476991 6676 return -EINVAL;
636a5d36 6677
19957bb3
JB		 6678 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6679 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6680
6681 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6682 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6683 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6684 }
6685
19957bb3 6686 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6687 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6688 return -EINVAL;
636a5d36 6689
e39e5b5e
JM		 6690 if (auth_type == NL80211_AUTHTYPE_SAE &&
6691 !info->attrs[NL80211_ATTR_SAE_DATA])
6692 return -EINVAL;
6693
6694 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6695 if (auth_type != NL80211_AUTHTYPE_SAE)
6696 return -EINVAL;
6697 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6698 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6699 /* need to include at least Auth Transaction and Status Code */
6700 if (sae_data_len < 4)
6701 return -EINVAL;
6702 }
6703
d5cdfacb
JM		 6704 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6705
95de817b
JB		 6706 /*
6707 * Since we no longer track auth state, ignore
6708 * requests to only change local state.
6709 */
6710 if (local_state_change)
6711 return 0;
6712
91bf9b26
JB		 6713 wdev_lock(dev->ieee80211_ptr);
6714 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6715 ssid, ssid_len, ie, ie_len,
6716 key.p.key, key.p.key_len, key.idx,
6717 sae_data, sae_data_len);
6718 wdev_unlock(dev->ieee80211_ptr);
6719 return err;
636a5d36
JM		 6720}
6721
c0692b8f
JB		 6722static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6723 struct genl_info *info,
3dc27d25
JB		 6724 struct cfg80211_crypto_settings *settings,
6725 int cipher_limit)
b23aa676 6726{
c0b2bbd8
JB		 6727 memset(settings, 0, sizeof(*settings));
6728
b23aa676
SO		 6729 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6730
c0692b8f
JB		 6731 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6732 u16 proto;
6733 proto = nla_get_u16(
6734 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6735 settings->control_port_ethertype = cpu_to_be16(proto);
6736 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6737 proto != ETH_P_PAE)
6738 return -EINVAL;
6739 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6740 settings->control_port_no_encrypt = true;
6741 } else
6742 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6743
b23aa676
SO		 6744 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6745 void *data;
6746 int len, i;
6747
6748 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6749 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6750 settings->n_ciphers_pairwise = len / sizeof(u32);
6751
6752 if (len % sizeof(u32))
6753 return -EINVAL;
6754
3dc27d25 6755 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6756 return -EINVAL;
6757
6758 memcpy(settings->ciphers_pairwise, data, len);
6759
6760 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6761 if (!cfg80211_supported_cipher_suite(
6762 &rdev->wiphy,
b23aa676
SO		 6763 settings->ciphers_pairwise[i]))
6764 return -EINVAL;
6765 }
6766
6767 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6768 settings->cipher_group =
6769 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6770 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6771 settings->cipher_group))
b23aa676
SO		 6772 return -EINVAL;
6773 }
6774
6775 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6776 settings->wpa_versions =
6777 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6778 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6779 return -EINVAL;
6780 }
6781
6782 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6783 void *data;
6d30240e 6784 int len;
b23aa676
SO		 6785
6786 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6787 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6788 settings->n_akm_suites = len / sizeof(u32);
6789
6790 if (len % sizeof(u32))
6791 return -EINVAL;
6792
1b9ca027
JM		 6793 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6794 return -EINVAL;
6795
b23aa676 6796 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6797 }
6798
6799 return 0;
6800}
6801
636a5d36
JM		 6802static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6803{
4c476991
JB		 6804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6805 struct net_device *dev = info->user_ptr[1];
f444de05 6806 struct ieee80211_channel *chan;
f62fab73
JB		 6807 struct cfg80211_assoc_request req = {};
6808 const u8 *bssid, *ssid;
6809 int err, ssid_len = 0;
636a5d36 6810
f4a11bb0
JB		 6811 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6812 return -EINVAL;
6813
6814 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6815 !info->attrs[NL80211_ATTR_SSID] ||
6816 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6817 return -EINVAL;
6818
4c476991
JB		 6819 if (!rdev->ops->assoc)
6820 return -EOPNOTSUPP;
636a5d36 6821
074ac8df 6822 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6823 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6824 return -EOPNOTSUPP;
eec60b03 6825
19957bb3 6826 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6827
664834de
JM		 6828 chan = nl80211_get_valid_chan(&rdev->wiphy,
6829 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6830 if (!chan)
4c476991 6831 return -EINVAL;
636a5d36 6832
19957bb3
JB		 6833 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6834 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6835
6836 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6837 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6838 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6839 }
6840
dc6382ce 6841 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6842 enum nl80211_mfp mfp =
dc6382ce 6843 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6844 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6845 req.use_mfp = true;
4c476991
JB		 6846 else if (mfp != NL80211_MFP_NO)
6847 return -EINVAL;
dc6382ce
JM		 6848 }
6849
3e5d7649 6850 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6851 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6852
7e7c8926 6853 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6854 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6855
6856 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6857 memcpy(&req.ht_capa_mask,
6858 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6859 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6860
6861 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6862 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6863 return -EINVAL;
f62fab73
JB		 6864 memcpy(&req.ht_capa,
6865 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6866 sizeof(req.ht_capa));
7e7c8926
BG		 6867 }
6868
ee2aca34 6869 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6870 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6871
6872 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6873 memcpy(&req.vht_capa_mask,
6874 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6875 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6876
6877 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6878 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6879 return -EINVAL;
f62fab73
JB		 6880 memcpy(&req.vht_capa,
6881 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6882 sizeof(req.vht_capa));
ee2aca34
JB		 6883 }
6884
bab5ab7d
AK		 6885 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6886 if (!(rdev->wiphy.features &
6887 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6888 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6889 return -EINVAL;
6890 req.flags |= ASSOC_REQ_USE_RRM;
6891 }
6892
f62fab73 6893 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6894 if (!err) {
6895 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6896 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6897 ssid, ssid_len, &req);
91bf9b26
JB		 6898 wdev_unlock(dev->ieee80211_ptr);
6899 }
636a5d36 6900
636a5d36
JM		 6901 return err;
6902}
6903
6904static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6905{
4c476991
JB		 6906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6907 struct net_device *dev = info->user_ptr[1];
19957bb3 6908 const u8 *ie = NULL, *bssid;
91bf9b26 6909 int ie_len = 0, err;
19957bb3 6910 u16 reason_code;
d5cdfacb 6911 bool local_state_change;
636a5d36 6912
f4a11bb0
JB		 6913 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6914 return -EINVAL;
6915
6916 if (!info->attrs[NL80211_ATTR_MAC])
6917 return -EINVAL;
6918
6919 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6920 return -EINVAL;
6921
4c476991
JB		 6922 if (!rdev->ops->deauth)
6923 return -EOPNOTSUPP;
636a5d36 6924
074ac8df 6925 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6926 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6927 return -EOPNOTSUPP;
eec60b03 6928
19957bb3 6929 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6930
19957bb3
JB		 6931 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6932 if (reason_code == 0) {
f4a11bb0 6933 /* Reason Code 0 is reserved */
4c476991 6934 return -EINVAL;
255e737e 6935 }
636a5d36
JM		 6936
6937 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6938 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6939 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6940 }
6941
d5cdfacb
JM		 6942 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6943
91bf9b26
JB		 6944 wdev_lock(dev->ieee80211_ptr);
6945 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6946 local_state_change);
6947 wdev_unlock(dev->ieee80211_ptr);
6948 return err;
636a5d36
JM		 6949}
6950
6951static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6952{
4c476991
JB		 6953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6954 struct net_device *dev = info->user_ptr[1];
19957bb3 6955 const u8 *ie = NULL, *bssid;
91bf9b26 6956 int ie_len = 0, err;
19957bb3 6957 u16 reason_code;
d5cdfacb 6958 bool local_state_change;
636a5d36 6959
f4a11bb0
JB		 6960 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6961 return -EINVAL;
6962
6963 if (!info->attrs[NL80211_ATTR_MAC])
6964 return -EINVAL;
6965
6966 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6967 return -EINVAL;
6968
4c476991
JB		 6969 if (!rdev->ops->disassoc)
6970 return -EOPNOTSUPP;
636a5d36 6971
074ac8df 6972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6974 return -EOPNOTSUPP;
eec60b03 6975
19957bb3 6976 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6977
19957bb3
JB		 6978 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6979 if (reason_code == 0) {
f4a11bb0 6980 /* Reason Code 0 is reserved */
4c476991 6981 return -EINVAL;
255e737e 6982 }
636a5d36
JM		 6983
6984 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6985 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6986 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6987 }
6988
d5cdfacb
JM		 6989 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6990
91bf9b26
JB		 6991 wdev_lock(dev->ieee80211_ptr);
6992 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6993 local_state_change);
6994 wdev_unlock(dev->ieee80211_ptr);
6995 return err;
636a5d36
JM		 6996}
6997
dd5b4cc7
FF		 6998static bool
6999nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7000 int mcast_rate[IEEE80211_NUM_BANDS],
7001 int rateval)
7002{
7003 struct wiphy *wiphy = &rdev->wiphy;
7004 bool found = false;
7005 int band, i;
7006
7007 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7008 struct ieee80211_supported_band *sband;
7009
7010 sband = wiphy->bands[band];
7011 if (!sband)
7012 continue;
7013
7014 for (i = 0; i < sband->n_bitrates; i++) {
7015 if (sband->bitrates[i].bitrate == rateval) {
7016 mcast_rate[band] = i + 1;
7017 found = true;
7018 break;
7019 }
7020 }
7021 }
7022
7023 return found;
7024}
7025
04a773ad
JB		 7026static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7027{
4c476991
JB		 7028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7029 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7030 struct cfg80211_ibss_params ibss;
7031 struct wiphy *wiphy;
fffd0934 7032 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7033 int err;
7034
8e30bc55
JB		 7035 memset(&ibss, 0, sizeof(ibss));
7036
04a773ad
JB		 7037 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7038 return -EINVAL;
7039
683b6d3b 7040 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7041 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7042 return -EINVAL;
7043
8e30bc55
JB		 7044 ibss.beacon_interval = 100;
7045
7046 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7047 ibss.beacon_interval =
7048 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7049 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7050 return -EINVAL;
7051 }
7052
4c476991
JB		 7053 if (!rdev->ops->join_ibss)
7054 return -EOPNOTSUPP;
04a773ad 7055
4c476991
JB		 7056 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7057 return -EOPNOTSUPP;
04a773ad 7058
79c97e97 7059 wiphy = &rdev->wiphy;
04a773ad 7060
39193498 7061 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7062 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7063
7064 if (!is_valid_ether_addr(ibss.bssid))
7065 return -EINVAL;
7066 }
04a773ad
JB		 7067 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7068 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7069
7070 if (info->attrs[NL80211_ATTR_IE]) {
7071 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7072 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7073 }
7074
683b6d3b
JB		 7075 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7076 if (err)
7077 return err;
04a773ad 7078
174e0cd2
IP		 7079 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7080 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7081 return -EINVAL;
7082
2f301ab2 7083 switch (ibss.chandef.width) {
bf372645
SW		 7084 case NL80211_CHAN_WIDTH_5:
7085 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7086 case NL80211_CHAN_WIDTH_20_NOHT:
7087 break;
7088 case NL80211_CHAN_WIDTH_20:
7089 case NL80211_CHAN_WIDTH_40:
7090 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7091 break;
7092 default:
c04d6150 7093 return -EINVAL;
2f301ab2 7094 }
db9c64cf 7095
04a773ad 7096 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7097 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7098
fbd2c8dc
TP		 7099 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7100 u8 *rates =
7101 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7102 int n_rates =
7103 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7104 struct ieee80211_supported_band *sband =
683b6d3b 7105 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7106
34850ab2
JB		 7107 err = ieee80211_get_ratemask(sband, rates, n_rates,
7108 &ibss.basic_rates);
7109 if (err)
7110 return err;
fbd2c8dc 7111 }
dd5b4cc7 7112
803768f5
SW		 7113 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7114 memcpy(&ibss.ht_capa_mask,
7115 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7116 sizeof(ibss.ht_capa_mask));
7117
7118 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7119 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7120 return -EINVAL;
7121 memcpy(&ibss.ht_capa,
7122 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7123 sizeof(ibss.ht_capa));
7124 }
7125
dd5b4cc7
FF		 7126 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7127 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7128 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7129 return -EINVAL;
fbd2c8dc 7130
4c476991 7131 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7132 bool no_ht = false;
7133
4c476991 7134 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7135 info->attrs[NL80211_ATTR_KEYS],
7136 &no_ht);
4c476991
JB		 7137 if (IS_ERR(connkeys))
7138 return PTR_ERR(connkeys);
de7044ee 7139
3d9d1d66
JB		 7140 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7141 no_ht) {
de7044ee
SM		 7142 kfree(connkeys);
7143 return -EINVAL;
7144 }
4c476991 7145 }
04a773ad 7146
267335d6
AQ		 7147 ibss.control_port =
7148 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7149
5336fa88
SW		 7150 ibss.userspace_handles_dfs =
7151 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7152
4c476991 7153 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7154 if (err)
b47f610b 7155 kzfree(connkeys);
04a773ad
JB		 7156 return err;
7157}
7158
7159static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7160{
4c476991
JB		 7161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7162 struct net_device *dev = info->user_ptr[1];
04a773ad 7163
4c476991
JB		 7164 if (!rdev->ops->leave_ibss)
7165 return -EOPNOTSUPP;
04a773ad 7166
4c476991
JB		 7167 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7168 return -EOPNOTSUPP;
04a773ad 7169
4c476991 7170 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7171}
7172
f4e583c8
AQ		 7173static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7174{
7175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7176 struct net_device *dev = info->user_ptr[1];
7177 int mcast_rate[IEEE80211_NUM_BANDS];
7178 u32 nla_rate;
7179 int err;
7180
7181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7182 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7183 return -EOPNOTSUPP;
7184
7185 if (!rdev->ops->set_mcast_rate)
7186 return -EOPNOTSUPP;
7187
7188 memset(mcast_rate, 0, sizeof(mcast_rate));
7189
7190 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7191 return -EINVAL;
7192
7193 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7194 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7195 return -EINVAL;
7196
7197 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7198
7199 return err;
7200}
7201
ad7e718c
JB		 7202static struct sk_buff *
7203__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7204 int approxlen, u32 portid, u32 seq,
7205 enum nl80211_commands cmd,
567ffc35
JB		 7206 enum nl80211_attrs attr,
7207 const struct nl80211_vendor_cmd_info *info,
7208 gfp_t gfp)
ad7e718c
JB		 7209{
7210 struct sk_buff *skb;
7211 void *hdr;
7212 struct nlattr *data;
7213
7214 skb = nlmsg_new(approxlen + 100, gfp);
7215 if (!skb)
7216 return NULL;
7217
7218 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7219 if (!hdr) {
7220 kfree_skb(skb);
7221 return NULL;
7222 }
7223
7224 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7225 goto nla_put_failure;
567ffc35
JB		 7226
7227 if (info) {
7228 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7229 info->vendor_id))
7230 goto nla_put_failure;
7231 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7232 info->subcmd))
7233 goto nla_put_failure;
7234 }
7235
ad7e718c
JB		 7236 data = nla_nest_start(skb, attr);
7237
7238 ((void **)skb->cb)[0] = rdev;
7239 ((void **)skb->cb)[1] = hdr;
7240 ((void **)skb->cb)[2] = data;
7241
7242 return skb;
7243
7244 nla_put_failure:
7245 kfree_skb(skb);
7246 return NULL;
7247}
f4e583c8 7248
e03ad6ea
JB		 7249struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7250 enum nl80211_commands cmd,
7251 enum nl80211_attrs attr,
7252 int vendor_event_idx,
7253 int approxlen, gfp_t gfp)
7254{
f26cbf40 7255 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7256 const struct nl80211_vendor_cmd_info *info;
7257
7258 switch (cmd) {
7259 case NL80211_CMD_TESTMODE:
7260 if (WARN_ON(vendor_event_idx != -1))
7261 return NULL;
7262 info = NULL;
7263 break;
7264 case NL80211_CMD_VENDOR:
7265 if (WARN_ON(vendor_event_idx < 0 ||
7266 vendor_event_idx >= wiphy->n_vendor_events))
7267 return NULL;
7268 info = &wiphy->vendor_events[vendor_event_idx];
7269 break;
7270 default:
7271 WARN_ON(1);
7272 return NULL;
7273 }
7274
7275 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7276 cmd, attr, info, gfp);
7277}
7278EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7279
7280void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7281{
7282 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7283 void *hdr = ((void **)skb->cb)[1];
7284 struct nlattr *data = ((void **)skb->cb)[2];
7285 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7286
bd8c78e7
JB		 7287 /* clear CB data for netlink core to own from now on */
7288 memset(skb->cb, 0, sizeof(skb->cb));
7289
e03ad6ea
JB		 7290 nla_nest_end(skb, data);
7291 genlmsg_end(skb, hdr);
7292
7293 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7294 mcgrp = NL80211_MCGRP_VENDOR;
7295
7296 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7297 mcgrp, gfp);
7298}
7299EXPORT_SYMBOL(__cfg80211_send_event_skb);
7300
aff89a9b 7301#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7302static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7303{
4c476991 7304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7305 struct wireless_dev *wdev =
7306 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7307 int err;
7308
fc73f11f
DS		 7309 if (!rdev->ops->testmode_cmd)
7310 return -EOPNOTSUPP;
7311
7312 if (IS_ERR(wdev)) {
7313 err = PTR_ERR(wdev);
7314 if (err != -EINVAL)
7315 return err;
7316 wdev = NULL;
7317 } else if (wdev->wiphy != &rdev->wiphy) {
7318 return -EINVAL;
7319 }
7320
aff89a9b
JB		 7321 if (!info->attrs[NL80211_ATTR_TESTDATA])
7322 return -EINVAL;
7323
ad7e718c 7324 rdev->cur_cmd_info = info;
fc73f11f 7325 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7326 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7327 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7328 rdev->cur_cmd_info = NULL;
aff89a9b 7329
aff89a9b
JB		 7330 return err;
7331}
7332
71063f0e
WYG		 7333static int nl80211_testmode_dump(struct sk_buff *skb,
7334 struct netlink_callback *cb)
7335{
00918d33 7336 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7337 int err;
7338 long phy_idx;
7339 void *data = NULL;
7340 int data_len = 0;
7341
5fe231e8
JB		 7342 rtnl_lock();
7343
71063f0e
WYG		 7344 if (cb->args[0]) {
7345 /*
7346 * 0 is a valid index, but not valid for args[0],
7347 * so we need to offset by 1.
7348 */
7349 phy_idx = cb->args[0] - 1;
7350 } else {
7351 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7352 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7353 nl80211_policy);
7354 if (err)
5fe231e8 7355 goto out_err;
00918d33 7356
2bd7e35d
JB		 7357 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7358 nl80211_fam.attrbuf);
7359 if (IS_ERR(rdev)) {
5fe231e8
JB		 7360 err = PTR_ERR(rdev);
7361 goto out_err;
00918d33 7362 }
2bd7e35d
JB		 7363 phy_idx = rdev->wiphy_idx;
7364 rdev = NULL;
2bd7e35d 7365
71063f0e
WYG		 7366 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7367 cb->args[1] =
7368 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7369 }
7370
7371 if (cb->args[1]) {
7372 data = nla_data((void *)cb->args[1]);
7373 data_len = nla_len((void *)cb->args[1]);
7374 }
7375
00918d33
JB		 7376 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7377 if (!rdev) {
5fe231e8
JB		 7378 err = -ENOENT;
7379 goto out_err;
71063f0e 7380 }
71063f0e 7381
00918d33 7382 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7383 err = -EOPNOTSUPP;
7384 goto out_err;
7385 }
7386
7387 while (1) {
15e47304 7388 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7389 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7390 NL80211_CMD_TESTMODE);
7391 struct nlattr *tmdata;
7392
cb35fba3
DC		 7393 if (!hdr)
7394 break;
7395
9360ffd1 7396 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7397 genlmsg_cancel(skb, hdr);
7398 break;
7399 }
7400
7401 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7402 if (!tmdata) {
7403 genlmsg_cancel(skb, hdr);
7404 break;
7405 }
e35e4d28 7406 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7407 nla_nest_end(skb, tmdata);
7408
7409 if (err == -ENOBUFS || err == -ENOENT) {
7410 genlmsg_cancel(skb, hdr);
7411 break;
7412 } else if (err) {
7413 genlmsg_cancel(skb, hdr);
7414 goto out_err;
7415 }
7416
7417 genlmsg_end(skb, hdr);
7418 }
7419
7420 err = skb->len;
7421 /* see above */
7422 cb->args[0] = phy_idx + 1;
7423 out_err:
5fe231e8 7424 rtnl_unlock();
71063f0e
WYG		 7425 return err;
7426}
aff89a9b
JB		 7427#endif
7428
b23aa676
SO		 7429static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7430{
4c476991
JB		 7431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7432 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7433 struct cfg80211_connect_params connect;
7434 struct wiphy *wiphy;
fffd0934 7435 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7436 int err;
7437
7438 memset(&connect, 0, sizeof(connect));
7439
7440 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7441 return -EINVAL;
7442
7443 if (!info->attrs[NL80211_ATTR_SSID] ||
7444 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7445 return -EINVAL;
7446
7447 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7448 connect.auth_type =
7449 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7450 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7451 NL80211_CMD_CONNECT))
b23aa676
SO		 7452 return -EINVAL;
7453 } else
7454 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7455
7456 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7457
c0692b8f 7458 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7459 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7460 if (err)
7461 return err;
b23aa676 7462
074ac8df 7463 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7464 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7465 return -EOPNOTSUPP;
b23aa676 7466
79c97e97 7467 wiphy = &rdev->wiphy;
b23aa676 7468
4486ea98
BS		 7469 connect.bg_scan_period = -1;
7470 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7471 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7472 connect.bg_scan_period =
7473 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7474 }
7475
b23aa676
SO		 7476 if (info->attrs[NL80211_ATTR_MAC])
7477 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7478 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7479 connect.bssid_hint =
7480 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7481 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7482 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7483
7484 if (info->attrs[NL80211_ATTR_IE]) {
7485 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7486 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7487 }
7488
cee00a95
JM		 7489 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7490 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7491 if (connect.mfp != NL80211_MFP_REQUIRED &&
7492 connect.mfp != NL80211_MFP_NO)
7493 return -EINVAL;
7494 } else {
7495 connect.mfp = NL80211_MFP_NO;
7496 }
7497
b23aa676 7498 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7499 connect.channel = nl80211_get_valid_chan(
7500 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7501 if (!connect.channel)
1df4a510
JM		 7502 return -EINVAL;
7503 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7504 connect.channel_hint = nl80211_get_valid_chan(
7505 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7506 if (!connect.channel_hint)
4c476991 7507 return -EINVAL;
b23aa676
SO		 7508 }
7509
fffd0934
JB		 7510 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7511 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7512 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7513 if (IS_ERR(connkeys))
7514 return PTR_ERR(connkeys);
fffd0934
JB		 7515 }
7516
7e7c8926
BG		 7517 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7518 connect.flags |= ASSOC_REQ_DISABLE_HT;
7519
7520 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7521 memcpy(&connect.ht_capa_mask,
7522 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7523 sizeof(connect.ht_capa_mask));
7524
7525 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7526 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7527 kzfree(connkeys);
7e7c8926 7528 return -EINVAL;
b4e4f47e 7529 }
7e7c8926
BG		 7530 memcpy(&connect.ht_capa,
7531 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7532 sizeof(connect.ht_capa));
7533 }
7534
ee2aca34
JB		 7535 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7536 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7537
7538 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7539 memcpy(&connect.vht_capa_mask,
7540 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7541 sizeof(connect.vht_capa_mask));
7542
7543 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7544 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7545 kzfree(connkeys);
ee2aca34
JB		 7546 return -EINVAL;
7547 }
7548 memcpy(&connect.vht_capa,
7549 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7550 sizeof(connect.vht_capa));
7551 }
7552
bab5ab7d
AK		 7553 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7554 if (!(rdev->wiphy.features &
7555 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7556 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7557 return -EINVAL;
7558 connect.flags |= ASSOC_REQ_USE_RRM;
7559 }
7560
83739b03
JB		 7561 wdev_lock(dev->ieee80211_ptr);
7562 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7563 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7564 if (err)
b47f610b 7565 kzfree(connkeys);
b23aa676
SO		 7566 return err;
7567}
7568
7569static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7570{
4c476991
JB		 7571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7572 struct net_device *dev = info->user_ptr[1];
b23aa676 7573 u16 reason;
83739b03 7574 int ret;
b23aa676
SO		 7575
7576 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7577 reason = WLAN_REASON_DEAUTH_LEAVING;
7578 else
7579 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7580
7581 if (reason == 0)
7582 return -EINVAL;
7583
074ac8df 7584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7585 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7586 return -EOPNOTSUPP;
b23aa676 7587
83739b03
JB		 7588 wdev_lock(dev->ieee80211_ptr);
7589 ret = cfg80211_disconnect(rdev, dev, reason, true);
7590 wdev_unlock(dev->ieee80211_ptr);
7591 return ret;
b23aa676
SO		 7592}
7593
463d0183
JB		 7594static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7595{
4c476991 7596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7597 struct net *net;
7598 int err;
7599 u32 pid;
7600
7601 if (!info->attrs[NL80211_ATTR_PID])
7602 return -EINVAL;
7603
7604 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7605
463d0183 7606 net = get_net_ns_by_pid(pid);
4c476991
JB		 7607 if (IS_ERR(net))
7608 return PTR_ERR(net);
463d0183
JB		 7609
7610 err = 0;
7611
7612 /* check if anything to do */
4c476991
JB		 7613 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7614 err = cfg80211_switch_netns(rdev, net);
463d0183 7615
463d0183 7616 put_net(net);
463d0183
JB		 7617 return err;
7618}
7619
67fbb16b
SO		 7620static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7621{
4c476991 7622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7623 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7624 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7625 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7626 struct cfg80211_pmksa pmksa;
7627
7628 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7629
7630 if (!info->attrs[NL80211_ATTR_MAC])
7631 return -EINVAL;
7632
7633 if (!info->attrs[NL80211_ATTR_PMKID])
7634 return -EINVAL;
7635
67fbb16b
SO		 7636 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7637 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7638
074ac8df 7639 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7640 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7641 return -EOPNOTSUPP;
67fbb16b
SO		 7642
7643 switch (info->genlhdr->cmd) {
7644 case NL80211_CMD_SET_PMKSA:
7645 rdev_ops = rdev->ops->set_pmksa;
7646 break;
7647 case NL80211_CMD_DEL_PMKSA:
7648 rdev_ops = rdev->ops->del_pmksa;
7649 break;
7650 default:
7651 WARN_ON(1);
7652 break;
7653 }
7654
4c476991
JB		 7655 if (!rdev_ops)
7656 return -EOPNOTSUPP;
67fbb16b 7657
4c476991 7658 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7659}
7660
7661static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7662{
4c476991
JB		 7663 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7664 struct net_device *dev = info->user_ptr[1];
67fbb16b 7665
074ac8df 7666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7667 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7668 return -EOPNOTSUPP;
67fbb16b 7669
4c476991
JB		 7670 if (!rdev->ops->flush_pmksa)
7671 return -EOPNOTSUPP;
67fbb16b 7672
e35e4d28 7673 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7674}
7675
109086ce
AN		 7676static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7677{
7678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7679 struct net_device *dev = info->user_ptr[1];
7680 u8 action_code, dialog_token;
df942e7b 7681 u32 peer_capability = 0;
109086ce
AN		 7682 u16 status_code;
7683 u8 *peer;
31fa97c5 7684 bool initiator;
109086ce
AN		 7685
7686 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7687 !rdev->ops->tdls_mgmt)
7688 return -EOPNOTSUPP;
7689
7690 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7691 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7692 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7693 !info->attrs[NL80211_ATTR_IE] ||
7694 !info->attrs[NL80211_ATTR_MAC])
7695 return -EINVAL;
7696
7697 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7698 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7699 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7700 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7701 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7702 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7703 peer_capability =
7704 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7705
e35e4d28 7706 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7707 dialog_token, status_code, peer_capability,
31fa97c5 7708 initiator,
e35e4d28
HG		 7709 nla_data(info->attrs[NL80211_ATTR_IE]),
7710 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7711}
7712
7713static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7714{
7715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7716 struct net_device *dev = info->user_ptr[1];
7717 enum nl80211_tdls_operation operation;
7718 u8 *peer;
7719
7720 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7721 !rdev->ops->tdls_oper)
7722 return -EOPNOTSUPP;
7723
7724 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7725 !info->attrs[NL80211_ATTR_MAC])
7726 return -EINVAL;
7727
7728 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7729 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7730
e35e4d28 7731 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7732}
7733
9588bbd5
JM		 7734static int nl80211_remain_on_channel(struct sk_buff *skb,
7735 struct genl_info *info)
7736{
4c476991 7737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7738 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7739 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7740 struct sk_buff *msg;
7741 void *hdr;
7742 u64 cookie;
683b6d3b 7743 u32 duration;
9588bbd5
JM		 7744 int err;
7745
7746 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7747 !info->attrs[NL80211_ATTR_DURATION])
7748 return -EINVAL;
7749
7750 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7751
ebf348fc
JB		 7752 if (!rdev->ops->remain_on_channel ||
7753 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7754 return -EOPNOTSUPP;
7755
9588bbd5 7756 /*
ebf348fc
JB		 7757 * We should be on that channel for at least a minimum amount of
7758 * time (10ms) but no longer than the driver supports.
9588bbd5 7759 */
ebf348fc 7760 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7761 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7762 return -EINVAL;
7763
683b6d3b
JB		 7764 err = nl80211_parse_chandef(rdev, info, &chandef);
7765 if (err)
7766 return err;
9588bbd5
JM		 7767
7768 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7769 if (!msg)
7770 return -ENOMEM;
9588bbd5 7771
15e47304 7772 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7773 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7774 if (!hdr) {
7775 err = -ENOBUFS;
9588bbd5
JM		 7776 goto free_msg;
7777 }
7778
683b6d3b
JB		 7779 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7780 duration, &cookie);
9588bbd5
JM		 7781
7782 if (err)
7783 goto free_msg;
7784
9360ffd1
DM		 7785 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7786 goto nla_put_failure;
9588bbd5
JM		 7787
7788 genlmsg_end(msg, hdr);
4c476991
JB		 7789
7790 return genlmsg_reply(msg, info);
9588bbd5
JM		 7791
7792 nla_put_failure:
7793 err = -ENOBUFS;
7794 free_msg:
7795 nlmsg_free(msg);
9588bbd5
JM		 7796 return err;
7797}
7798
7799static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7800 struct genl_info *info)
7801{
4c476991 7802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7803 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7804 u64 cookie;
9588bbd5
JM		 7805
7806 if (!info->attrs[NL80211_ATTR_COOKIE])
7807 return -EINVAL;
7808
4c476991
JB		 7809 if (!rdev->ops->cancel_remain_on_channel)
7810 return -EOPNOTSUPP;
9588bbd5 7811
9588bbd5
JM		 7812 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7813
e35e4d28 7814 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7815}
7816
13ae75b1
JM		 7817static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7818 u8 *rates, u8 rates_len)
7819{
7820 u8 i;
7821 u32 mask = 0;
7822
7823 for (i = 0; i < rates_len; i++) {
7824 int rate = (rates[i] & 0x7f) * 5;
7825 int ridx;
7826 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7827 struct ieee80211_rate *srate =
7828 &sband->bitrates[ridx];
7829 if (rate == srate->bitrate) {
7830 mask |= 1 << ridx;
7831 break;
7832 }
7833 }
7834 if (ridx == sband->n_bitrates)
7835 return 0; /* rate not found */
7836 }
7837
7838 return mask;
7839}
7840
24db78c0
SW		 7841static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7842 u8 *rates, u8 rates_len,
7843 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7844{
7845 u8 i;
7846
7847 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7848
7849 for (i = 0; i < rates_len; i++) {
7850 int ridx, rbit;
7851
7852 ridx = rates[i] / 8;
7853 rbit = BIT(rates[i] % 8);
7854
7855 /* check validity */
910570b5 7856 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7857 return false;
7858
7859 /* check availability */
7860 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7861 mcs[ridx] |= rbit;
7862 else
7863 return false;
7864 }
7865
7866 return true;
7867}
7868
204e35a9
JD		 7869static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7870{
7871 u16 mcs_mask = 0;
7872
7873 switch (vht_mcs_map) {
7874 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7875 break;
7876 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7877 mcs_mask = 0x00FF;
7878 break;
7879 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7880 mcs_mask = 0x01FF;
7881 break;
7882 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7883 mcs_mask = 0x03FF;
7884 break;
7885 default:
7886 break;
7887 }
7888
7889 return mcs_mask;
7890}
7891
7892static void vht_build_mcs_mask(u16 vht_mcs_map,
7893 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7894{
7895 u8 nss;
7896
7897 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7898 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7899 vht_mcs_map >>= 2;
7900 }
7901}
7902
7903static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7904 struct nl80211_txrate_vht *txrate,
7905 u16 mcs[NL80211_VHT_NSS_MAX])
7906{
7907 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7908 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7909 u8 i;
7910
7911 if (!sband->vht_cap.vht_supported)
7912 return false;
7913
7914 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7915
7916 /* Build vht_mcs_mask from VHT capabilities */
7917 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7918
7919 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7920 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7921 mcs[i] = txrate->mcs[i];
7922 else
7923 return false;
7924 }
7925
7926 return true;
7927}
7928
b54452b0 7929static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7930 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7931 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7932 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7933 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7934 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7935 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7936};
7937
7938static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7939 struct genl_info *info)
7940{
7941 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7943 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7944 int rem, i;
7945 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7946 struct nlattr *tx_rates;
7947 struct ieee80211_supported_band *sband;
204e35a9 7948 u16 vht_tx_mcs_map;
13ae75b1 7949
4c476991
JB		 7950 if (!rdev->ops->set_bitrate_mask)
7951 return -EOPNOTSUPP;
13ae75b1
JM		 7952
7953 memset(&mask, 0, sizeof(mask));
7954 /* Default to all rates enabled */
7955 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7956 sband = rdev->wiphy.bands[i];
7869303b
JD		 7957
7958 if (!sband)
7959 continue;
7960
7961 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7962 memcpy(mask.control[i].ht_mcs,
7869303b 7963 sband->ht_cap.mcs.rx_mask,
d1e33e65 7964 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7965
7966 if (!sband->vht_cap.vht_supported)
7967 continue;
7968
7969 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7970 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7971 }
7972
b9243ab0
JD		 7973 /* if no rates are given set it back to the defaults */
7974 if (!info->attrs[NL80211_ATTR_TX_RATES])
7975 goto out;
7976
13ae75b1
JM		 7977 /*
7978 * The nested attribute uses enum nl80211_band as the index. This maps
7979 * directly to the enum ieee80211_band values used in cfg80211.
7980 */
24db78c0 7981 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7982 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7983 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7984 int err;
7985
4c476991
JB		 7986 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7987 return -EINVAL;
13ae75b1 7988 sband = rdev->wiphy.bands[band];
4c476991
JB		 7989 if (sband == NULL)
7990 return -EINVAL;
ae811e21
JB		 7991 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7992 nla_len(tx_rates), nl80211_txattr_policy);
7993 if (err)
7994 return err;
13ae75b1
JM		 7995 if (tb[NL80211_TXRATE_LEGACY]) {
7996 mask.control[band].legacy = rateset_to_mask(
7997 sband,
7998 nla_data(tb[NL80211_TXRATE_LEGACY]),
7999 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8000 if ((mask.control[band].legacy == 0) &&
8001 nla_len(tb[NL80211_TXRATE_LEGACY]))
8002 return -EINVAL;
24db78c0 8003 }
d1e33e65 8004 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8005 if (!ht_rateset_to_mask(
8006 sband,
d1e33e65
JD		 8007 nla_data(tb[NL80211_TXRATE_HT]),
8008 nla_len(tb[NL80211_TXRATE_HT]),
8009 mask.control[band].ht_mcs))
24db78c0
SW		 8010 return -EINVAL;
8011 }
204e35a9
JD		 8012 if (tb[NL80211_TXRATE_VHT]) {
8013 if (!vht_set_mcs_mask(
8014 sband,
8015 nla_data(tb[NL80211_TXRATE_VHT]),
8016 mask.control[band].vht_mcs))
8017 return -EINVAL;
8018 }
0b9323f6
JD		 8019 if (tb[NL80211_TXRATE_GI]) {
8020 mask.control[band].gi =
8021 nla_get_u8(tb[NL80211_TXRATE_GI]);
8022 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8023 return -EINVAL;
8024 }
24db78c0
SW		 8025
8026 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8027 /* don't allow empty legacy rates if HT or VHT
8028 * are not even supported.
8029 */
8030 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8031 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8032 return -EINVAL;
8033
8034 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8035 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8036 goto out;
8037
8038 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8039 if (mask.control[band].vht_mcs[i])
8040 goto out;
24db78c0
SW		 8041
8042 /* legacy and mcs rates may not be both empty */
204e35a9 8043 return -EINVAL;
13ae75b1
JM		 8044 }
8045 }
8046
b9243ab0 8047out:
e35e4d28 8048 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8049}
8050
2e161f78 8051static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8052{
4c476991 8053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8054 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8055 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8056
8057 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8058 return -EINVAL;
8059
2e161f78
JB		 8060 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8061 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8062
71bbc994
JB		 8063 switch (wdev->iftype) {
8064 case NL80211_IFTYPE_STATION:
8065 case NL80211_IFTYPE_ADHOC:
8066 case NL80211_IFTYPE_P2P_CLIENT:
8067 case NL80211_IFTYPE_AP:
8068 case NL80211_IFTYPE_AP_VLAN:
8069 case NL80211_IFTYPE_MESH_POINT:
8070 case NL80211_IFTYPE_P2P_GO:
98104fde 8071 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8072 break;
8073 default:
4c476991 8074 return -EOPNOTSUPP;
71bbc994 8075 }
026331c4
JM		 8076
8077 /* not much point in registering if we can't reply */
4c476991
JB		 8078 if (!rdev->ops->mgmt_tx)
8079 return -EOPNOTSUPP;
026331c4 8080
15e47304 8081 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8082 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8083 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8084}
8085
2e161f78 8086static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8087{
4c476991 8088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8089 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8090 struct cfg80211_chan_def chandef;
026331c4 8091 int err;
d64d373f 8092 void *hdr = NULL;
026331c4 8093 u64 cookie;
e247bd90 8094 struct sk_buff *msg = NULL;
b176e629
AO		 8095 struct cfg80211_mgmt_tx_params params = {
8096 .dont_wait_for_ack =
8097 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8098 };
026331c4 8099
683b6d3b 8100 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8101 return -EINVAL;
8102
4c476991
JB		 8103 if (!rdev->ops->mgmt_tx)
8104 return -EOPNOTSUPP;
026331c4 8105
71bbc994 8106 switch (wdev->iftype) {
ea141b75
AQ		 8107 case NL80211_IFTYPE_P2P_DEVICE:
8108 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8109 return -EINVAL;
71bbc994
JB		 8110 case NL80211_IFTYPE_STATION:
8111 case NL80211_IFTYPE_ADHOC:
8112 case NL80211_IFTYPE_P2P_CLIENT:
8113 case NL80211_IFTYPE_AP:
8114 case NL80211_IFTYPE_AP_VLAN:
8115 case NL80211_IFTYPE_MESH_POINT:
8116 case NL80211_IFTYPE_P2P_GO:
8117 break;
8118 default:
4c476991 8119 return -EOPNOTSUPP;
71bbc994 8120 }
026331c4 8121
f7ca38df 8122 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8123 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8124 return -EINVAL;
b176e629 8125 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8126
8127 /*
8128 * We should wait on the channel for at least a minimum amount
8129 * of time (10ms) but no longer than the driver supports.
8130 */
b176e629
AO		 8131 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8132 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8133 return -EINVAL;
8134
f7ca38df
JB		 8135 }
8136
b176e629 8137 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8138
b176e629 8139 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8140 return -EINVAL;
8141
b176e629 8142 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8143
ea141b75
AQ		 8144 /* get the channel if any has been specified, otherwise pass NULL to
8145 * the driver. The latter will use the current one
8146 */
8147 chandef.chan = NULL;
8148 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8149 err = nl80211_parse_chandef(rdev, info, &chandef);
8150 if (err)
8151 return err;
8152 }
8153
b176e629 8154 if (!chandef.chan && params.offchan)
ea141b75 8155 return -EINVAL;
026331c4 8156
34d22ce2
AO		 8157 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8158 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8159
8160 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8161 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8162 int i;
8163
8164 if (len % sizeof(u16))
8165 return -EINVAL;
8166
8167 params.n_csa_offsets = len / sizeof(u16);
8168 params.csa_offsets =
8169 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8170
8171 /* check that all the offsets fit the frame */
8172 for (i = 0; i < params.n_csa_offsets; i++) {
8173 if (params.csa_offsets[i] >= params.len)
8174 return -EINVAL;
8175 }
8176 }
8177
b176e629 8178 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8179 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8180 if (!msg)
8181 return -ENOMEM;
026331c4 8182
15e47304 8183 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8184 NL80211_CMD_FRAME);
cb35fba3
DC		 8185 if (!hdr) {
8186 err = -ENOBUFS;
e247bd90
JB		 8187 goto free_msg;
8188 }
026331c4 8189 }
e247bd90 8190
b176e629
AO		 8191 params.chan = chandef.chan;
8192 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8193 if (err)
8194 goto free_msg;
8195
e247bd90 8196 if (msg) {
9360ffd1
DM		 8197 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8198 goto nla_put_failure;
026331c4 8199
e247bd90
JB		 8200 genlmsg_end(msg, hdr);
8201 return genlmsg_reply(msg, info);
8202 }
8203
8204 return 0;
026331c4
JM		 8205
8206 nla_put_failure:
8207 err = -ENOBUFS;
8208 free_msg:
8209 nlmsg_free(msg);
026331c4
JM		 8210 return err;
8211}
8212
f7ca38df
JB		 8213static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8214{
8215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8216 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8217 u64 cookie;
8218
8219 if (!info->attrs[NL80211_ATTR_COOKIE])
8220 return -EINVAL;
8221
8222 if (!rdev->ops->mgmt_tx_cancel_wait)
8223 return -EOPNOTSUPP;
8224
71bbc994
JB		 8225 switch (wdev->iftype) {
8226 case NL80211_IFTYPE_STATION:
8227 case NL80211_IFTYPE_ADHOC:
8228 case NL80211_IFTYPE_P2P_CLIENT:
8229 case NL80211_IFTYPE_AP:
8230 case NL80211_IFTYPE_AP_VLAN:
8231 case NL80211_IFTYPE_P2P_GO:
98104fde 8232 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8233 break;
8234 default:
f7ca38df 8235 return -EOPNOTSUPP;
71bbc994 8236 }
f7ca38df
JB		 8237
8238 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8239
e35e4d28 8240 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8241}
8242
ffb9eb3d
KV		 8243static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8244{
4c476991 8245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8246 struct wireless_dev *wdev;
4c476991 8247 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8248 u8 ps_state;
8249 bool state;
8250 int err;
8251
4c476991
JB		 8252 if (!info->attrs[NL80211_ATTR_PS_STATE])
8253 return -EINVAL;
ffb9eb3d
KV		 8254
8255 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8256
4c476991
JB		 8257 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8258 return -EINVAL;
ffb9eb3d
KV		 8259
8260 wdev = dev->ieee80211_ptr;
8261
4c476991
JB		 8262 if (!rdev->ops->set_power_mgmt)
8263 return -EOPNOTSUPP;
ffb9eb3d
KV		 8264
8265 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8266
8267 if (state == wdev->ps)
4c476991 8268 return 0;
ffb9eb3d 8269
e35e4d28 8270 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8271 if (!err)
8272 wdev->ps = state;
ffb9eb3d
KV		 8273 return err;
8274}
8275
8276static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8277{
4c476991 8278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8279 enum nl80211_ps_state ps_state;
8280 struct wireless_dev *wdev;
4c476991 8281 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8282 struct sk_buff *msg;
8283 void *hdr;
8284 int err;
8285
ffb9eb3d
KV		 8286 wdev = dev->ieee80211_ptr;
8287
4c476991
JB		 8288 if (!rdev->ops->set_power_mgmt)
8289 return -EOPNOTSUPP;
ffb9eb3d
KV		 8290
8291 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8292 if (!msg)
8293 return -ENOMEM;
ffb9eb3d 8294
15e47304 8295 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8296 NL80211_CMD_GET_POWER_SAVE);
8297 if (!hdr) {
4c476991 8298 err = -ENOBUFS;
ffb9eb3d
KV		 8299 goto free_msg;
8300 }
8301
8302 if (wdev->ps)
8303 ps_state = NL80211_PS_ENABLED;
8304 else
8305 ps_state = NL80211_PS_DISABLED;
8306
9360ffd1
DM		 8307 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8308 goto nla_put_failure;
ffb9eb3d
KV		 8309
8310 genlmsg_end(msg, hdr);
4c476991 8311 return genlmsg_reply(msg, info);
ffb9eb3d 8312
4c476991 8313 nla_put_failure:
ffb9eb3d 8314 err = -ENOBUFS;
4c476991 8315 free_msg:
ffb9eb3d 8316 nlmsg_free(msg);
ffb9eb3d
KV		 8317 return err;
8318}
8319
94e860f1
JB		 8320static const struct nla_policy
8321nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8322 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8323 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8324 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8325 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8326 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8327 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8328};
8329
84f10708 8330static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8331 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8332{
8333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8334 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8335 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8336
d9d8b019 8337 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8338 return -EINVAL;
8339
84f10708
TP		 8340 if (!rdev->ops->set_cqm_txe_config)
8341 return -EOPNOTSUPP;
8342
8343 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8344 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8345 return -EOPNOTSUPP;
8346
e35e4d28 8347 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8348}
8349
d6dc1a38
JO		 8350static int nl80211_set_cqm_rssi(struct genl_info *info,
8351 s32 threshold, u32 hysteresis)
8352{
4c476991 8353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8354 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8355 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8356
8357 if (threshold > 0)
8358 return -EINVAL;
8359
1da5fcc8
JB		 8360 /* disabling - hysteresis should also be zero then */
8361 if (threshold == 0)
8362 hysteresis = 0;
d6dc1a38 8363
4c476991
JB		 8364 if (!rdev->ops->set_cqm_rssi_config)
8365 return -EOPNOTSUPP;
d6dc1a38 8366
074ac8df 8367 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8368 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8369 return -EOPNOTSUPP;
d6dc1a38 8370
e35e4d28 8371 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8372}
8373
8374static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8375{
8376 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8377 struct nlattr *cqm;
8378 int err;
8379
8380 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8381 if (!cqm)
8382 return -EINVAL;
d6dc1a38
JO		 8383
8384 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8385 nl80211_attr_cqm_policy);
8386 if (err)
1da5fcc8 8387 return err;
d6dc1a38
JO		 8388
8389 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8390 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8391 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8392 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8393
1da5fcc8
JB		 8394 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8395 }
8396
8397 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8398 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8399 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8400 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8401 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8402 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8403
8404 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8405 }
8406
8407 return -EINVAL;
d6dc1a38
JO		 8408}
8409
6e0bd6c3
RL		 8410static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8411{
8412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8413 struct net_device *dev = info->user_ptr[1];
8414 struct ocb_setup setup = {};
8415 int err;
8416
8417 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8418 if (err)
8419 return err;
8420
8421 return cfg80211_join_ocb(rdev, dev, &setup);
8422}
8423
8424static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8425{
8426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8427 struct net_device *dev = info->user_ptr[1];
8428
8429 return cfg80211_leave_ocb(rdev, dev);
8430}
8431
29cbe68c
JB		 8432static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8433{
8434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8435 struct net_device *dev = info->user_ptr[1];
8436 struct mesh_config cfg;
c80d545d 8437 struct mesh_setup setup;
29cbe68c
JB		 8438 int err;
8439
8440 /* start with default */
8441 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8442 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8443
24bdd9f4 8444 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8445 /* and parse parameters if given */
24bdd9f4 8446 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8447 if (err)
8448 return err;
8449 }
8450
8451 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8452 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8453 return -EINVAL;
8454
c80d545d
JC		 8455 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8456 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8457
4bb62344
CYY		 8458 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8459 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8460 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8461 return -EINVAL;
8462
9bdbf04d
MP		 8463 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8464 setup.beacon_interval =
8465 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8466 if (setup.beacon_interval < 10 ||
8467 setup.beacon_interval > 10000)
8468 return -EINVAL;
8469 }
8470
8471 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8472 setup.dtim_period =
8473 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8474 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8475 return -EINVAL;
8476 }
8477
c80d545d
JC		 8478 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8479 /* parse additional setup parameters if given */
8480 err = nl80211_parse_mesh_setup(info, &setup);
8481 if (err)
8482 return err;
8483 }
8484
d37bb18a
TP		 8485 if (setup.user_mpm)
8486 cfg.auto_open_plinks = false;
8487
cc1d2806 8488 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8489 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8490 if (err)
8491 return err;
cc1d2806
JB		 8492 } else {
8493 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8494 setup.chandef.chan = NULL;
cc1d2806
JB		 8495 }
8496
ffb3cf30
AN		 8497 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8498 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8499 int n_rates =
8500 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8501 struct ieee80211_supported_band *sband;
8502
8503 if (!setup.chandef.chan)
8504 return -EINVAL;
8505
8506 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8507
8508 err = ieee80211_get_ratemask(sband, rates, n_rates,
8509 &setup.basic_rates);
8510 if (err)
8511 return err;
8512 }
8513
c80d545d 8514 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8515}
8516
8517static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8518{
8519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8520 struct net_device *dev = info->user_ptr[1];
8521
8522 return cfg80211_leave_mesh(rdev, dev);
8523}
8524
dfb89c56 8525#ifdef CONFIG_PM
bb92d199
AK		 8526static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8527 struct cfg80211_registered_device *rdev)
8528{
6abb9cb9 8529 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8530 struct nlattr *nl_pats, *nl_pat;
8531 int i, pat_len;
8532
6abb9cb9 8533 if (!wowlan->n_patterns)
bb92d199
AK		 8534 return 0;
8535
8536 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8537 if (!nl_pats)
8538 return -ENOBUFS;
8539
6abb9cb9 8540 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8541 nl_pat = nla_nest_start(msg, i + 1);
8542 if (!nl_pat)
8543 return -ENOBUFS;
6abb9cb9 8544 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8545 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8546 wowlan->patterns[i].mask) ||
50ac6607
AK		 8547 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8548 wowlan->patterns[i].pattern) ||
8549 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8550 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8551 return -ENOBUFS;
8552 nla_nest_end(msg, nl_pat);
8553 }
8554 nla_nest_end(msg, nl_pats);
8555
8556 return 0;
8557}
8558
2a0e047e
JB		 8559static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8560 struct cfg80211_wowlan_tcp *tcp)
8561{
8562 struct nlattr *nl_tcp;
8563
8564 if (!tcp)
8565 return 0;
8566
8567 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8568 if (!nl_tcp)
8569 return -ENOBUFS;
8570
8571 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8572 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8573 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8574 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8575 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8576 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8577 tcp->payload_len, tcp->payload) ||
8578 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8579 tcp->data_interval) ||
8580 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8581 tcp->wake_len, tcp->wake_data) ||
8582 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8583 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8584 return -ENOBUFS;
8585
8586 if (tcp->payload_seq.len &&
8587 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8588 sizeof(tcp->payload_seq), &tcp->payload_seq))
8589 return -ENOBUFS;
8590
8591 if (tcp->payload_tok.len &&
8592 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8593 sizeof(tcp->payload_tok) + tcp->tokens_size,
8594 &tcp->payload_tok))
8595 return -ENOBUFS;
8596
e248ad30
JB		 8597 nla_nest_end(msg, nl_tcp);
8598
2a0e047e
JB		 8599 return 0;
8600}
8601
ff1b6e69
JB		 8602static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8603{
8604 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8605 struct sk_buff *msg;
8606 void *hdr;
2a0e047e 8607 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8608
964dc9e2 8609 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8610 return -EOPNOTSUPP;
8611
6abb9cb9 8612 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8613 /* adjust size to have room for all the data */
6abb9cb9
JB		 8614 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8615 rdev->wiphy.wowlan_config->tcp->payload_len +
8616 rdev->wiphy.wowlan_config->tcp->wake_len +
8617 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8618 }
8619
8620 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8621 if (!msg)
8622 return -ENOMEM;
8623
15e47304 8624 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8625 NL80211_CMD_GET_WOWLAN);
8626 if (!hdr)
8627 goto nla_put_failure;
8628
6abb9cb9 8629 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8630 struct nlattr *nl_wowlan;
8631
8632 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8633 if (!nl_wowlan)
8634 goto nla_put_failure;
8635
6abb9cb9 8636 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8637 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8638 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8639 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8640 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8641 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8642 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8643 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8644 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8645 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8646 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8647 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8648 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8649 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8650 goto nla_put_failure;
2a0e047e 8651
bb92d199
AK		 8652 if (nl80211_send_wowlan_patterns(msg, rdev))
8653 goto nla_put_failure;
2a0e047e 8654
6abb9cb9
JB		 8655 if (nl80211_send_wowlan_tcp(msg,
8656 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8657 goto nla_put_failure;
8658
ff1b6e69
JB		 8659 nla_nest_end(msg, nl_wowlan);
8660 }
8661
8662 genlmsg_end(msg, hdr);
8663 return genlmsg_reply(msg, info);
8664
8665nla_put_failure:
8666 nlmsg_free(msg);
8667 return -ENOBUFS;
8668}
8669
2a0e047e
JB		 8670static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8671 struct nlattr *attr,
8672 struct cfg80211_wowlan *trig)
8673{
8674 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8675 struct cfg80211_wowlan_tcp *cfg;
8676 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8677 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8678 u32 size;
8679 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8680 int err, port;
8681
964dc9e2 8682 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8683 return -EINVAL;
8684
8685 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8686 nla_data(attr), nla_len(attr),
8687 nl80211_wowlan_tcp_policy);
8688 if (err)
8689 return err;
8690
8691 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8692 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8693 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8694 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8695 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8696 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8697 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8698 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8699 return -EINVAL;
8700
8701 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8702 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8703 return -EINVAL;
8704
8705 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8706 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8707 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8708 return -EINVAL;
8709
8710 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8711 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8712 return -EINVAL;
8713
8714 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8715 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8716 return -EINVAL;
8717
8718 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8719 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8720
8721 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8722 tokens_size = tokln - sizeof(*tok);
8723
8724 if (!tok->len || tokens_size % tok->len)
8725 return -EINVAL;
964dc9e2 8726 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8727 return -EINVAL;
964dc9e2 8728 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8729 return -EINVAL;
964dc9e2 8730 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8731 return -EINVAL;
964dc9e2 8732 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8733 return -EINVAL;
8734 if (tok->offset + tok->len > data_size)
8735 return -EINVAL;
8736 }
8737
8738 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8739 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8740 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8741 return -EINVAL;
8742 if (seq->len == 0 || seq->len > 4)
8743 return -EINVAL;
8744 if (seq->len + seq->offset > data_size)
8745 return -EINVAL;
8746 }
8747
8748 size = sizeof(*cfg);
8749 size += data_size;
8750 size += wake_size + wake_mask_size;
8751 size += tokens_size;
8752
8753 cfg = kzalloc(size, GFP_KERNEL);
8754 if (!cfg)
8755 return -ENOMEM;
8756 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8757 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8758 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8759 ETH_ALEN);
8760 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8761 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8762 else
8763 port = 0;
8764#ifdef CONFIG_INET
8765 /* allocate a socket and port for it and use it */
8766 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8767 IPPROTO_TCP, &cfg->sock, 1);
8768 if (err) {
8769 kfree(cfg);
8770 return err;
8771 }
8772 if (inet_csk_get_port(cfg->sock->sk, port)) {
8773 sock_release(cfg->sock);
8774 kfree(cfg);
8775 return -EADDRINUSE;
8776 }
8777 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8778#else
8779 if (!port) {
8780 kfree(cfg);
8781 return -EINVAL;
8782 }
8783 cfg->src_port = port;
8784#endif
8785
8786 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8787 cfg->payload_len = data_size;
8788 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8789 memcpy((void *)cfg->payload,
8790 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8791 data_size);
8792 if (seq)
8793 cfg->payload_seq = *seq;
8794 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8795 cfg->wake_len = wake_size;
8796 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8797 memcpy((void *)cfg->wake_data,
8798 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8799 wake_size);
8800 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8801 data_size + wake_size;
8802 memcpy((void *)cfg->wake_mask,
8803 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8804 wake_mask_size);
8805 if (tok) {
8806 cfg->tokens_size = tokens_size;
8807 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8808 }
8809
8810 trig->tcp = cfg;
8811
8812 return 0;
8813}
8814
8cd4d456
LC		 8815static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
8816 const struct wiphy_wowlan_support *wowlan,
8817 struct nlattr *attr,
8818 struct cfg80211_wowlan *trig)
8819{
8820 struct nlattr **tb;
8821 int err;
8822
8823 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
8824 if (!tb)
8825 return -ENOMEM;
8826
8827 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
8828 err = -EOPNOTSUPP;
8829 goto out;
8830 }
8831
8832 err = nla_parse(tb, NL80211_ATTR_MAX,
8833 nla_data(attr), nla_len(attr),
8834 nl80211_policy);
8835 if (err)
8836 goto out;
8837
ad2b26ab 8838 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 8839 err = PTR_ERR_OR_ZERO(trig->nd_config);
8840 if (err)
8841 trig->nd_config = NULL;
8842
8843out:
8844 kfree(tb);
8845 return err;
8846}
8847
ff1b6e69
JB		 8848static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8849{
8850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8851 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8852 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8853 struct cfg80211_wowlan *ntrig;
964dc9e2 8854 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8855 int err, i;
6abb9cb9 8856 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8857
964dc9e2 8858 if (!wowlan)
ff1b6e69
JB		 8859 return -EOPNOTSUPP;
8860
ae33bd81
JB		 8861 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8862 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8863 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8864 goto set_wakeup;
8865 }
ff1b6e69
JB		 8866
8867 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8868 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8869 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8870 nl80211_wowlan_policy);
8871 if (err)
8872 return err;
8873
8874 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8875 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8876 return -EINVAL;
8877 new_triggers.any = true;
8878 }
8879
8880 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8881 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8882 return -EINVAL;
8883 new_triggers.disconnect = true;
8884 }
8885
8886 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8887 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8888 return -EINVAL;
8889 new_triggers.magic_pkt = true;
8890 }
8891
77dbbb13
JB		 8892 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8893 return -EINVAL;
8894
8895 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8896 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8897 return -EINVAL;
8898 new_triggers.gtk_rekey_failure = true;
8899 }
8900
8901 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8902 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8903 return -EINVAL;
8904 new_triggers.eap_identity_req = true;
8905 }
8906
8907 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8908 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8909 return -EINVAL;
8910 new_triggers.four_way_handshake = true;
8911 }
8912
8913 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8914 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8915 return -EINVAL;
8916 new_triggers.rfkill_release = true;
8917 }
8918
ff1b6e69
JB		 8919 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8920 struct nlattr *pat;
8921 int n_patterns = 0;
bb92d199 8922 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8923 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8924
8925 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8926 rem)
8927 n_patterns++;
8928 if (n_patterns > wowlan->n_patterns)
8929 return -EINVAL;
8930
8931 new_triggers.patterns = kcalloc(n_patterns,
8932 sizeof(new_triggers.patterns[0]),
8933 GFP_KERNEL);
8934 if (!new_triggers.patterns)
8935 return -ENOMEM;
8936
8937 new_triggers.n_patterns = n_patterns;
8938 i = 0;
8939
8940 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8941 rem) {
922bd80f
JB		 8942 u8 *mask_pat;
8943
50ac6607
AK		 8944 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8945 nla_len(pat), NULL);
ff1b6e69 8946 err = -EINVAL;
50ac6607
AK		 8947 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8948 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8949 goto error;
50ac6607 8950 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8951 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8952 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8953 goto error;
8954 if (pat_len > wowlan->pattern_max_len ||
8955 pat_len < wowlan->pattern_min_len)
8956 goto error;
8957
50ac6607 8958 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8959 pkt_offset = 0;
8960 else
8961 pkt_offset = nla_get_u32(
50ac6607 8962 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8963 if (pkt_offset > wowlan->max_pkt_offset)
8964 goto error;
8965 new_triggers.patterns[i].pkt_offset = pkt_offset;
8966
922bd80f
JB		 8967 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8968 if (!mask_pat) {
ff1b6e69
JB		 8969 err = -ENOMEM;
8970 goto error;
8971 }
922bd80f
JB		 8972 new_triggers.patterns[i].mask = mask_pat;
8973 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8974 mask_len);
922bd80f
JB		 8975 mask_pat += mask_len;
8976 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8977 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8978 memcpy(mask_pat,
50ac6607 8979 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8980 pat_len);
8981 i++;
8982 }
8983 }
8984
2a0e047e
JB		 8985 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8986 err = nl80211_parse_wowlan_tcp(
8987 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8988 &new_triggers);
8989 if (err)
8990 goto error;
8991 }
8992
8cd4d456
LC		 8993 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
8994 err = nl80211_parse_wowlan_nd(
8995 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
8996 &new_triggers);
8997 if (err)
8998 goto error;
8999 }
9000
ae33bd81
JB		 9001 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9002 if (!ntrig) {
9003 err = -ENOMEM;
9004 goto error;
ff1b6e69 9005 }
ae33bd81 9006 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9007 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9008
ae33bd81 9009 set_wakeup:
6abb9cb9
JB		 9010 if (rdev->ops->set_wakeup &&
9011 prev_enabled != !!rdev->wiphy.wowlan_config)
9012 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9013
ff1b6e69
JB		 9014 return 0;
9015 error:
9016 for (i = 0; i < new_triggers.n_patterns; i++)
9017 kfree(new_triggers.patterns[i].mask);
9018 kfree(new_triggers.patterns);
2a0e047e
JB		 9019 if (new_triggers.tcp && new_triggers.tcp->sock)
9020 sock_release(new_triggers.tcp->sock);
9021 kfree(new_triggers.tcp);
ff1b6e69
JB		 9022 return err;
9023}
dfb89c56 9024#endif
ff1b6e69 9025
be29b99a
AK		 9026static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9027 struct cfg80211_registered_device *rdev)
9028{
9029 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9030 int i, j, pat_len;
9031 struct cfg80211_coalesce_rules *rule;
9032
9033 if (!rdev->coalesce->n_rules)
9034 return 0;
9035
9036 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9037 if (!nl_rules)
9038 return -ENOBUFS;
9039
9040 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9041 nl_rule = nla_nest_start(msg, i + 1);
9042 if (!nl_rule)
9043 return -ENOBUFS;
9044
9045 rule = &rdev->coalesce->rules[i];
9046 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9047 rule->delay))
9048 return -ENOBUFS;
9049
9050 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9051 rule->condition))
9052 return -ENOBUFS;
9053
9054 nl_pats = nla_nest_start(msg,
9055 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9056 if (!nl_pats)
9057 return -ENOBUFS;
9058
9059 for (j = 0; j < rule->n_patterns; j++) {
9060 nl_pat = nla_nest_start(msg, j + 1);
9061 if (!nl_pat)
9062 return -ENOBUFS;
9063 pat_len = rule->patterns[j].pattern_len;
9064 if (nla_put(msg, NL80211_PKTPAT_MASK,
9065 DIV_ROUND_UP(pat_len, 8),
9066 rule->patterns[j].mask) ||
9067 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9068 rule->patterns[j].pattern) ||
9069 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9070 rule->patterns[j].pkt_offset))
9071 return -ENOBUFS;
9072 nla_nest_end(msg, nl_pat);
9073 }
9074 nla_nest_end(msg, nl_pats);
9075 nla_nest_end(msg, nl_rule);
9076 }
9077 nla_nest_end(msg, nl_rules);
9078
9079 return 0;
9080}
9081
9082static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9083{
9084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9085 struct sk_buff *msg;
9086 void *hdr;
9087
9088 if (!rdev->wiphy.coalesce)
9089 return -EOPNOTSUPP;
9090
9091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9092 if (!msg)
9093 return -ENOMEM;
9094
9095 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9096 NL80211_CMD_GET_COALESCE);
9097 if (!hdr)
9098 goto nla_put_failure;
9099
9100 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9101 goto nla_put_failure;
9102
9103 genlmsg_end(msg, hdr);
9104 return genlmsg_reply(msg, info);
9105
9106nla_put_failure:
9107 nlmsg_free(msg);
9108 return -ENOBUFS;
9109}
9110
9111void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9112{
9113 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9114 int i, j;
9115 struct cfg80211_coalesce_rules *rule;
9116
9117 if (!coalesce)
9118 return;
9119
9120 for (i = 0; i < coalesce->n_rules; i++) {
9121 rule = &coalesce->rules[i];
9122 for (j = 0; j < rule->n_patterns; j++)
9123 kfree(rule->patterns[j].mask);
9124 kfree(rule->patterns);
9125 }
9126 kfree(coalesce->rules);
9127 kfree(coalesce);
9128 rdev->coalesce = NULL;
9129}
9130
9131static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9132 struct nlattr *rule,
9133 struct cfg80211_coalesce_rules *new_rule)
9134{
9135 int err, i;
9136 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9137 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9138 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9139 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9140
9141 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9142 nla_len(rule), nl80211_coalesce_policy);
9143 if (err)
9144 return err;
9145
9146 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9147 new_rule->delay =
9148 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9149 if (new_rule->delay > coalesce->max_delay)
9150 return -EINVAL;
9151
9152 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9153 new_rule->condition =
9154 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9155 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9156 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9157 return -EINVAL;
9158
9159 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9160 return -EINVAL;
9161
9162 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9163 rem)
9164 n_patterns++;
9165 if (n_patterns > coalesce->n_patterns)
9166 return -EINVAL;
9167
9168 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9169 GFP_KERNEL);
9170 if (!new_rule->patterns)
9171 return -ENOMEM;
9172
9173 new_rule->n_patterns = n_patterns;
9174 i = 0;
9175
9176 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9177 rem) {
922bd80f
JB		 9178 u8 *mask_pat;
9179
be29b99a
AK		 9180 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9181 nla_len(pat), NULL);
9182 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9183 !pat_tb[NL80211_PKTPAT_PATTERN])
9184 return -EINVAL;
9185 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9186 mask_len = DIV_ROUND_UP(pat_len, 8);
9187 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9188 return -EINVAL;
9189 if (pat_len > coalesce->pattern_max_len ||
9190 pat_len < coalesce->pattern_min_len)
9191 return -EINVAL;
9192
9193 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9194 pkt_offset = 0;
9195 else
9196 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9197 if (pkt_offset > coalesce->max_pkt_offset)
9198 return -EINVAL;
9199 new_rule->patterns[i].pkt_offset = pkt_offset;
9200
922bd80f
JB		 9201 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9202 if (!mask_pat)
be29b99a 9203 return -ENOMEM;
922bd80f
JB		 9204
9205 new_rule->patterns[i].mask = mask_pat;
9206 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9207 mask_len);
9208
9209 mask_pat += mask_len;
9210 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9211 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9212 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9213 pat_len);
be29b99a
AK		 9214 i++;
9215 }
9216
9217 return 0;
9218}
9219
9220static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9221{
9222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9223 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9224 struct cfg80211_coalesce new_coalesce = {};
9225 struct cfg80211_coalesce *n_coalesce;
9226 int err, rem_rule, n_rules = 0, i, j;
9227 struct nlattr *rule;
9228 struct cfg80211_coalesce_rules *tmp_rule;
9229
9230 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9231 return -EOPNOTSUPP;
9232
9233 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9234 cfg80211_rdev_free_coalesce(rdev);
9235 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9236 return 0;
9237 }
9238
9239 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9240 rem_rule)
9241 n_rules++;
9242 if (n_rules > coalesce->n_rules)
9243 return -EINVAL;
9244
9245 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9246 GFP_KERNEL);
9247 if (!new_coalesce.rules)
9248 return -ENOMEM;
9249
9250 new_coalesce.n_rules = n_rules;
9251 i = 0;
9252
9253 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9254 rem_rule) {
9255 err = nl80211_parse_coalesce_rule(rdev, rule,
9256 &new_coalesce.rules[i]);
9257 if (err)
9258 goto error;
9259
9260 i++;
9261 }
9262
9263 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9264 if (err)
9265 goto error;
9266
9267 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9268 if (!n_coalesce) {
9269 err = -ENOMEM;
9270 goto error;
9271 }
9272 cfg80211_rdev_free_coalesce(rdev);
9273 rdev->coalesce = n_coalesce;
9274
9275 return 0;
9276error:
9277 for (i = 0; i < new_coalesce.n_rules; i++) {
9278 tmp_rule = &new_coalesce.rules[i];
9279 for (j = 0; j < tmp_rule->n_patterns; j++)
9280 kfree(tmp_rule->patterns[j].mask);
9281 kfree(tmp_rule->patterns);
9282 }
9283 kfree(new_coalesce.rules);
9284
9285 return err;
9286}
9287
e5497d76
JB		 9288static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9289{
9290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9291 struct net_device *dev = info->user_ptr[1];
9292 struct wireless_dev *wdev = dev->ieee80211_ptr;
9293 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9294 struct cfg80211_gtk_rekey_data rekey_data;
9295 int err;
9296
9297 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9298 return -EINVAL;
9299
9300 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9301 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9302 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9303 nl80211_rekey_policy);
9304 if (err)
9305 return err;
9306
9307 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9308 return -ERANGE;
9309 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9310 return -ERANGE;
9311 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9312 return -ERANGE;
9313
78f686ca
JB		 9314 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9315 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9316 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9317
9318 wdev_lock(wdev);
9319 if (!wdev->current_bss) {
9320 err = -ENOTCONN;
9321 goto out;
9322 }
9323
9324 if (!rdev->ops->set_rekey_data) {
9325 err = -EOPNOTSUPP;
9326 goto out;
9327 }
9328
e35e4d28 9329 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9330 out:
9331 wdev_unlock(wdev);
9332 return err;
9333}
9334
28946da7
JB		 9335static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9336 struct genl_info *info)
9337{
9338 struct net_device *dev = info->user_ptr[1];
9339 struct wireless_dev *wdev = dev->ieee80211_ptr;
9340
9341 if (wdev->iftype != NL80211_IFTYPE_AP &&
9342 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9343 return -EINVAL;
9344
15e47304 9345 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9346 return -EBUSY;
9347
15e47304 9348 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9349 return 0;
9350}
9351
7f6cf311
JB		 9352static int nl80211_probe_client(struct sk_buff *skb,
9353 struct genl_info *info)
9354{
9355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9356 struct net_device *dev = info->user_ptr[1];
9357 struct wireless_dev *wdev = dev->ieee80211_ptr;
9358 struct sk_buff *msg;
9359 void *hdr;
9360 const u8 *addr;
9361 u64 cookie;
9362 int err;
9363
9364 if (wdev->iftype != NL80211_IFTYPE_AP &&
9365 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9366 return -EOPNOTSUPP;
9367
9368 if (!info->attrs[NL80211_ATTR_MAC])
9369 return -EINVAL;
9370
9371 if (!rdev->ops->probe_client)
9372 return -EOPNOTSUPP;
9373
9374 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9375 if (!msg)
9376 return -ENOMEM;
9377
15e47304 9378 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9379 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9380 if (!hdr) {
9381 err = -ENOBUFS;
7f6cf311
JB		 9382 goto free_msg;
9383 }
9384
9385 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9386
e35e4d28 9387 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9388 if (err)
9389 goto free_msg;
9390
9360ffd1
DM		 9391 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9392 goto nla_put_failure;
7f6cf311
JB		 9393
9394 genlmsg_end(msg, hdr);
9395
9396 return genlmsg_reply(msg, info);
9397
9398 nla_put_failure:
9399 err = -ENOBUFS;
9400 free_msg:
9401 nlmsg_free(msg);
9402 return err;
9403}
9404
5e760230
JB		 9405static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9406{
9407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9408 struct cfg80211_beacon_registration *reg, *nreg;
9409 int rv;
5e760230
JB		 9410
9411 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9412 return -EOPNOTSUPP;
9413
37c73b5f
BG		 9414 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9415 if (!nreg)
9416 return -ENOMEM;
9417
9418 /* First, check if already registered. */
9419 spin_lock_bh(&rdev->beacon_registrations_lock);
9420 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9421 if (reg->nlportid == info->snd_portid) {
9422 rv = -EALREADY;
9423 goto out_err;
9424 }
9425 }
9426 /* Add it to the list */
9427 nreg->nlportid = info->snd_portid;
9428 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9429
37c73b5f 9430 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9431
9432 return 0;
37c73b5f
BG		 9433out_err:
9434 spin_unlock_bh(&rdev->beacon_registrations_lock);
9435 kfree(nreg);
9436 return rv;
5e760230
JB		 9437}
9438
98104fde
JB		 9439static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9440{
9441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9442 struct wireless_dev *wdev = info->user_ptr[1];
9443 int err;
9444
9445 if (!rdev->ops->start_p2p_device)
9446 return -EOPNOTSUPP;
9447
9448 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9449 return -EOPNOTSUPP;
9450
9451 if (wdev->p2p_started)
9452 return 0;
9453
b6a55015
LC		 9454 if (rfkill_blocked(rdev->rfkill))
9455 return -ERFKILL;
98104fde 9456
eeb126e9 9457 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9458 if (err)
9459 return err;
9460
9461 wdev->p2p_started = true;
98104fde 9462 rdev->opencount++;
98104fde
JB		 9463
9464 return 0;
9465}
9466
9467static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9468{
9469 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9470 struct wireless_dev *wdev = info->user_ptr[1];
9471
9472 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9473 return -EOPNOTSUPP;
9474
9475 if (!rdev->ops->stop_p2p_device)
9476 return -EOPNOTSUPP;
9477
f9f47529 9478 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9479
9480 return 0;
9481}
9482
3713b4e3
JB		 9483static int nl80211_get_protocol_features(struct sk_buff *skb,
9484 struct genl_info *info)
9485{
9486 void *hdr;
9487 struct sk_buff *msg;
9488
9489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9490 if (!msg)
9491 return -ENOMEM;
9492
9493 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9494 NL80211_CMD_GET_PROTOCOL_FEATURES);
9495 if (!hdr)
9496 goto nla_put_failure;
9497
9498 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9499 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9500 goto nla_put_failure;
9501
9502 genlmsg_end(msg, hdr);
9503 return genlmsg_reply(msg, info);
9504
9505 nla_put_failure:
9506 kfree_skb(msg);
9507 return -ENOBUFS;
9508}
9509
355199e0
JM		 9510static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9511{
9512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9513 struct cfg80211_update_ft_ies_params ft_params;
9514 struct net_device *dev = info->user_ptr[1];
9515
9516 if (!rdev->ops->update_ft_ies)
9517 return -EOPNOTSUPP;
9518
9519 if (!info->attrs[NL80211_ATTR_MDID] ||
9520 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9521 return -EINVAL;
9522
9523 memset(&ft_params, 0, sizeof(ft_params));
9524 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9525 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9526 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9527
9528 return rdev_update_ft_ies(rdev, dev, &ft_params);
9529}
9530
5de17984
AS		 9531static int nl80211_crit_protocol_start(struct sk_buff *skb,
9532 struct genl_info *info)
9533{
9534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9535 struct wireless_dev *wdev = info->user_ptr[1];
9536 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9537 u16 duration;
9538 int ret;
9539
9540 if (!rdev->ops->crit_proto_start)
9541 return -EOPNOTSUPP;
9542
9543 if (WARN_ON(!rdev->ops->crit_proto_stop))
9544 return -EINVAL;
9545
9546 if (rdev->crit_proto_nlportid)
9547 return -EBUSY;
9548
9549 /* determine protocol if provided */
9550 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9551 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9552
9553 if (proto >= NUM_NL80211_CRIT_PROTO)
9554 return -EINVAL;
9555
9556 /* timeout must be provided */
9557 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9558 return -EINVAL;
9559
9560 duration =
9561 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9562
9563 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9564 return -ERANGE;
9565
9566 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9567 if (!ret)
9568 rdev->crit_proto_nlportid = info->snd_portid;
9569
9570 return ret;
9571}
9572
9573static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9574 struct genl_info *info)
9575{
9576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9577 struct wireless_dev *wdev = info->user_ptr[1];
9578
9579 if (!rdev->ops->crit_proto_stop)
9580 return -EOPNOTSUPP;
9581
9582 if (rdev->crit_proto_nlportid) {
9583 rdev->crit_proto_nlportid = 0;
9584 rdev_crit_proto_stop(rdev, wdev);
9585 }
9586 return 0;
9587}
9588
ad7e718c
JB		 9589static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9590{
9591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9592 struct wireless_dev *wdev =
9593 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9594 int i, err;
9595 u32 vid, subcmd;
9596
9597 if (!rdev->wiphy.vendor_commands)
9598 return -EOPNOTSUPP;
9599
9600 if (IS_ERR(wdev)) {
9601 err = PTR_ERR(wdev);
9602 if (err != -EINVAL)
9603 return err;
9604 wdev = NULL;
9605 } else if (wdev->wiphy != &rdev->wiphy) {
9606 return -EINVAL;
9607 }
9608
9609 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9610 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9611 return -EINVAL;
9612
9613 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9614 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9615 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9616 const struct wiphy_vendor_command *vcmd;
9617 void *data = NULL;
9618 int len = 0;
9619
9620 vcmd = &rdev->wiphy.vendor_commands[i];
9621
9622 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9623 continue;
9624
9625 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9626 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9627 if (!wdev)
9628 return -EINVAL;
9629 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9630 !wdev->netdev)
9631 return -EINVAL;
9632
9633 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9634 if (wdev->netdev &&
9635 !netif_running(wdev->netdev))
9636 return -ENETDOWN;
9637 if (!wdev->netdev && !wdev->p2p_started)
9638 return -ENETDOWN;
9639 }
9640 } else {
9641 wdev = NULL;
9642 }
9643
9644 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9645 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9646 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9647 }
9648
9649 rdev->cur_cmd_info = info;
9650 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9651 data, len);
9652 rdev->cur_cmd_info = NULL;
9653 return err;
9654 }
9655
9656 return -EOPNOTSUPP;
9657}
9658
9659struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9660 enum nl80211_commands cmd,
9661 enum nl80211_attrs attr,
9662 int approxlen)
9663{
f26cbf40 9664 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9665
9666 if (WARN_ON(!rdev->cur_cmd_info))
9667 return NULL;
9668
9669 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9670 rdev->cur_cmd_info->snd_portid,
9671 rdev->cur_cmd_info->snd_seq,
567ffc35 9672 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9673}
9674EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9675
9676int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9677{
9678 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9679 void *hdr = ((void **)skb->cb)[1];
9680 struct nlattr *data = ((void **)skb->cb)[2];
9681
bd8c78e7
JB		 9682 /* clear CB data for netlink core to own from now on */
9683 memset(skb->cb, 0, sizeof(skb->cb));
9684
ad7e718c
JB		 9685 if (WARN_ON(!rdev->cur_cmd_info)) {
9686 kfree_skb(skb);
9687 return -EINVAL;
9688 }
9689
9690 nla_nest_end(skb, data);
9691 genlmsg_end(skb, hdr);
9692 return genlmsg_reply(skb, rdev->cur_cmd_info);
9693}
9694EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9695
9696
fa9ffc74
KP		 9697static int nl80211_set_qos_map(struct sk_buff *skb,
9698 struct genl_info *info)
9699{
9700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9701 struct cfg80211_qos_map *qos_map = NULL;
9702 struct net_device *dev = info->user_ptr[1];
9703 u8 *pos, len, num_des, des_len, des;
9704 int ret;
9705
9706 if (!rdev->ops->set_qos_map)
9707 return -EOPNOTSUPP;
9708
9709 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9710 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9711 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9712
9713 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9714 len > IEEE80211_QOS_MAP_LEN_MAX)
9715 return -EINVAL;
9716
9717 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9718 if (!qos_map)
9719 return -ENOMEM;
9720
9721 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9722 if (num_des) {
9723 des_len = num_des *
9724 sizeof(struct cfg80211_dscp_exception);
9725 memcpy(qos_map->dscp_exception, pos, des_len);
9726 qos_map->num_des = num_des;
9727 for (des = 0; des < num_des; des++) {
9728 if (qos_map->dscp_exception[des].up > 7) {
9729 kfree(qos_map);
9730 return -EINVAL;
9731 }
9732 }
9733 pos += des_len;
9734 }
9735 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9736 }
9737
9738 wdev_lock(dev->ieee80211_ptr);
9739 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9740 if (!ret)
9741 ret = rdev_set_qos_map(rdev, dev, qos_map);
9742 wdev_unlock(dev->ieee80211_ptr);
9743
9744 kfree(qos_map);
9745 return ret;
9746}
9747
960d01ac
JB		 9748static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9749{
9750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9751 struct net_device *dev = info->user_ptr[1];
9752 struct wireless_dev *wdev = dev->ieee80211_ptr;
9753 const u8 *peer;
9754 u8 tsid, up;
9755 u16 admitted_time = 0;
9756 int err;
9757
723e73ac 9758 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9759 return -EOPNOTSUPP;
9760
9761 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9762 !info->attrs[NL80211_ATTR_USER_PRIO])
9763 return -EINVAL;
9764
9765 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9766 if (tsid >= IEEE80211_NUM_TIDS)
9767 return -EINVAL;
9768
9769 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9770 if (up >= IEEE80211_NUM_UPS)
9771 return -EINVAL;
9772
9773 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9774 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9775 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9776 * need more attributes for that (e.g. BA session requirement);
9777 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9778 */
9779 return -EINVAL;
9780 }
9781
9782 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9783
9784 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9785 admitted_time =
9786 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9787 if (!admitted_time)
9788 return -EINVAL;
9789 }
9790
9791 wdev_lock(wdev);
9792 switch (wdev->iftype) {
9793 case NL80211_IFTYPE_STATION:
9794 case NL80211_IFTYPE_P2P_CLIENT:
9795 if (wdev->current_bss)
9796 break;
9797 err = -ENOTCONN;
9798 goto out;
9799 default:
9800 err = -EOPNOTSUPP;
9801 goto out;
9802 }
9803
9804 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9805
9806 out:
9807 wdev_unlock(wdev);
9808 return err;
9809}
9810
9811static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9812{
9813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9814 struct net_device *dev = info->user_ptr[1];
9815 struct wireless_dev *wdev = dev->ieee80211_ptr;
9816 const u8 *peer;
9817 u8 tsid;
9818 int err;
9819
9820 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9821 return -EINVAL;
9822
9823 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9824 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9825
9826 wdev_lock(wdev);
9827 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9828 wdev_unlock(wdev);
9829
9830 return err;
9831}
9832
1057d35e
AN		 9833static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9834 struct genl_info *info)
9835{
9836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9837 struct net_device *dev = info->user_ptr[1];
9838 struct wireless_dev *wdev = dev->ieee80211_ptr;
9839 struct cfg80211_chan_def chandef = {};
9840 const u8 *addr;
9841 u8 oper_class;
9842 int err;
9843
9844 if (!rdev->ops->tdls_channel_switch ||
9845 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9846 return -EOPNOTSUPP;
9847
9848 switch (dev->ieee80211_ptr->iftype) {
9849 case NL80211_IFTYPE_STATION:
9850 case NL80211_IFTYPE_P2P_CLIENT:
9851 break;
9852 default:
9853 return -EOPNOTSUPP;
9854 }
9855
9856 if (!info->attrs[NL80211_ATTR_MAC] ||
9857 !info->attrs[NL80211_ATTR_OPER_CLASS])
9858 return -EINVAL;
9859
9860 err = nl80211_parse_chandef(rdev, info, &chandef);
9861 if (err)
9862 return err;
9863
9864 /*
9865 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9866 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9867 * specification is not defined for them.
9868 */
9869 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
9870 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
9871 chandef.width != NL80211_CHAN_WIDTH_20)
9872 return -EINVAL;
9873
9874 /* we will be active on the TDLS link */
9875 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
9876 return -EINVAL;
9877
9878 /* don't allow switching to DFS channels */
9879 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
9880 return -EINVAL;
9881
9882 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9883 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
9884
9885 wdev_lock(wdev);
9886 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
9887 wdev_unlock(wdev);
9888
9889 return err;
9890}
9891
9892static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
9893 struct genl_info *info)
9894{
9895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9896 struct net_device *dev = info->user_ptr[1];
9897 struct wireless_dev *wdev = dev->ieee80211_ptr;
9898 const u8 *addr;
9899
9900 if (!rdev->ops->tdls_channel_switch ||
9901 !rdev->ops->tdls_cancel_channel_switch ||
9902 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9903 return -EOPNOTSUPP;
9904
9905 switch (dev->ieee80211_ptr->iftype) {
9906 case NL80211_IFTYPE_STATION:
9907 case NL80211_IFTYPE_P2P_CLIENT:
9908 break;
9909 default:
9910 return -EOPNOTSUPP;
9911 }
9912
9913 if (!info->attrs[NL80211_ATTR_MAC])
9914 return -EINVAL;
9915
9916 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9917
9918 wdev_lock(wdev);
9919 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
9920 wdev_unlock(wdev);
9921
9922 return 0;
9923}
9924
4c476991
JB		 9925#define NL80211_FLAG_NEED_WIPHY 0x01
9926#define NL80211_FLAG_NEED_NETDEV 0x02
9927#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9928#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9929#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9930 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9931#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9932/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9933#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9934 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 9935#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 9936
f84f771d 9937static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9938 struct genl_info *info)
9939{
9940 struct cfg80211_registered_device *rdev;
89a54e48 9941 struct wireless_dev *wdev;
4c476991 9942 struct net_device *dev;
4c476991
JB		 9943 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9944
9945 if (rtnl)
9946 rtnl_lock();
9947
9948 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9949 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9950 if (IS_ERR(rdev)) {
9951 if (rtnl)
9952 rtnl_unlock();
9953 return PTR_ERR(rdev);
9954 }
9955 info->user_ptr[0] = rdev;
1bf614ef
JB		 9956 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9957 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9958 ASSERT_RTNL();
9959
89a54e48
JB		 9960 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9961 info->attrs);
9962 if (IS_ERR(wdev)) {
4c476991
JB		 9963 if (rtnl)
9964 rtnl_unlock();
89a54e48 9965 return PTR_ERR(wdev);
4c476991 9966 }
89a54e48 9967
89a54e48 9968 dev = wdev->netdev;
f26cbf40 9969 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9970
1bf614ef
JB		 9971 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9972 if (!dev) {
1bf614ef
JB		 9973 if (rtnl)
9974 rtnl_unlock();
9975 return -EINVAL;
9976 }
9977
9978 info->user_ptr[1] = dev;
9979 } else {
9980 info->user_ptr[1] = wdev;
41265714 9981 }
1bf614ef
JB		 9982
9983 if (dev) {
9984 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9985 !netif_running(dev)) {
1bf614ef
JB		 9986 if (rtnl)
9987 rtnl_unlock();
9988 return -ENETDOWN;
9989 }
9990
9991 dev_hold(dev);
98104fde
JB		 9992 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9993 if (!wdev->p2p_started) {
98104fde
JB		 9994 if (rtnl)
9995 rtnl_unlock();
9996 return -ENETDOWN;
9997 }
41265714 9998 }
89a54e48 9999
4c476991 10000 info->user_ptr[0] = rdev;
4c476991
JB		 10001 }
10002
10003 return 0;
10004}
10005
f84f771d 10006static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10007 struct genl_info *info)
10008{
1bf614ef
JB		 10009 if (info->user_ptr[1]) {
10010 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10011 struct wireless_dev *wdev = info->user_ptr[1];
10012
10013 if (wdev->netdev)
10014 dev_put(wdev->netdev);
10015 } else {
10016 dev_put(info->user_ptr[1]);
10017 }
10018 }
5393b917 10019
4c476991
JB		 10020 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10021 rtnl_unlock();
5393b917
JB		 10022
10023 /* If needed, clear the netlink message payload from the SKB
10024 * as it might contain key data that shouldn't stick around on
10025 * the heap after the SKB is freed. The netlink message header
10026 * is still needed for further processing, so leave it intact.
10027 */
10028 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10029 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10030
10031 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10032 }
4c476991
JB		 10033}
10034
4534de83 10035static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10036 {
10037 .cmd = NL80211_CMD_GET_WIPHY,
10038 .doit = nl80211_get_wiphy,
10039 .dumpit = nl80211_dump_wiphy,
86e8cf98 10040 .done = nl80211_dump_wiphy_done,
55682965
JB		 10041 .policy = nl80211_policy,
10042 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10043 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10044 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10045 },
10046 {
10047 .cmd = NL80211_CMD_SET_WIPHY,
10048 .doit = nl80211_set_wiphy,
10049 .policy = nl80211_policy,
10050 .flags = GENL_ADMIN_PERM,
4c476991 10051 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10052 },
10053 {
10054 .cmd = NL80211_CMD_GET_INTERFACE,
10055 .doit = nl80211_get_interface,
10056 .dumpit = nl80211_dump_interface,
10057 .policy = nl80211_policy,
10058 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10059 .internal_flags = NL80211_FLAG_NEED_WDEV |
10060 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10061 },
10062 {
10063 .cmd = NL80211_CMD_SET_INTERFACE,
10064 .doit = nl80211_set_interface,
10065 .policy = nl80211_policy,
10066 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10067 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10068 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10069 },
10070 {
10071 .cmd = NL80211_CMD_NEW_INTERFACE,
10072 .doit = nl80211_new_interface,
10073 .policy = nl80211_policy,
10074 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10075 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10076 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10077 },
10078 {
10079 .cmd = NL80211_CMD_DEL_INTERFACE,
10080 .doit = nl80211_del_interface,
10081 .policy = nl80211_policy,
41ade00f 10082 .flags = GENL_ADMIN_PERM,
84efbb84 10083 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10084 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10085 },
10086 {
10087 .cmd = NL80211_CMD_GET_KEY,
10088 .doit = nl80211_get_key,
10089 .policy = nl80211_policy,
10090 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10091 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10092 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10093 },
10094 {
10095 .cmd = NL80211_CMD_SET_KEY,
10096 .doit = nl80211_set_key,
10097 .policy = nl80211_policy,
10098 .flags = GENL_ADMIN_PERM,
41265714 10099 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10100 NL80211_FLAG_NEED_RTNL |
10101 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10102 },
10103 {
10104 .cmd = NL80211_CMD_NEW_KEY,
10105 .doit = nl80211_new_key,
10106 .policy = nl80211_policy,
10107 .flags = GENL_ADMIN_PERM,
41265714 10108 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10109 NL80211_FLAG_NEED_RTNL |
10110 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10111 },
10112 {
10113 .cmd = NL80211_CMD_DEL_KEY,
10114 .doit = nl80211_del_key,
10115 .policy = nl80211_policy,
55682965 10116 .flags = GENL_ADMIN_PERM,
41265714 10117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10118 NL80211_FLAG_NEED_RTNL,
55682965 10119 },
ed1b6cc7
JB		 10120 {
10121 .cmd = NL80211_CMD_SET_BEACON,
10122 .policy = nl80211_policy,
10123 .flags = GENL_ADMIN_PERM,
8860020e 10124 .doit = nl80211_set_beacon,
2b5f8b0b 10125 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10126 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10127 },
10128 {
8860020e 10129 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10130 .policy = nl80211_policy,
10131 .flags = GENL_ADMIN_PERM,
8860020e 10132 .doit = nl80211_start_ap,
2b5f8b0b 10133 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10134 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10135 },
10136 {
8860020e 10137 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10138 .policy = nl80211_policy,
10139 .flags = GENL_ADMIN_PERM,
8860020e 10140 .doit = nl80211_stop_ap,
2b5f8b0b 10141 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10142 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10143 },
5727ef1b
JB		 10144 {
10145 .cmd = NL80211_CMD_GET_STATION,
10146 .doit = nl80211_get_station,
2ec600d6 10147 .dumpit = nl80211_dump_station,
5727ef1b 10148 .policy = nl80211_policy,
4c476991
JB		 10149 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10150 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10151 },
10152 {
10153 .cmd = NL80211_CMD_SET_STATION,
10154 .doit = nl80211_set_station,
10155 .policy = nl80211_policy,
10156 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10158 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10159 },
10160 {
10161 .cmd = NL80211_CMD_NEW_STATION,
10162 .doit = nl80211_new_station,
10163 .policy = nl80211_policy,
10164 .flags = GENL_ADMIN_PERM,
41265714 10165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10166 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10167 },
10168 {
10169 .cmd = NL80211_CMD_DEL_STATION,
10170 .doit = nl80211_del_station,
10171 .policy = nl80211_policy,
2ec600d6 10172 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10173 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10174 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10175 },
10176 {
10177 .cmd = NL80211_CMD_GET_MPATH,
10178 .doit = nl80211_get_mpath,
10179 .dumpit = nl80211_dump_mpath,
10180 .policy = nl80211_policy,
10181 .flags = GENL_ADMIN_PERM,
41265714 10182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10183 NL80211_FLAG_NEED_RTNL,
2ec600d6 10184 },
66be7d2b
HR		 10185 {
10186 .cmd = NL80211_CMD_GET_MPP,
10187 .doit = nl80211_get_mpp,
10188 .dumpit = nl80211_dump_mpp,
10189 .policy = nl80211_policy,
10190 .flags = GENL_ADMIN_PERM,
10191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10192 NL80211_FLAG_NEED_RTNL,
10193 },
2ec600d6
LCC		 10194 {
10195 .cmd = NL80211_CMD_SET_MPATH,
10196 .doit = nl80211_set_mpath,
10197 .policy = nl80211_policy,
10198 .flags = GENL_ADMIN_PERM,
41265714 10199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10200 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10201 },
10202 {
10203 .cmd = NL80211_CMD_NEW_MPATH,
10204 .doit = nl80211_new_mpath,
10205 .policy = nl80211_policy,
10206 .flags = GENL_ADMIN_PERM,
41265714 10207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10208 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10209 },
10210 {
10211 .cmd = NL80211_CMD_DEL_MPATH,
10212 .doit = nl80211_del_mpath,
10213 .policy = nl80211_policy,
9f1ba906 10214 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10216 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10217 },
10218 {
10219 .cmd = NL80211_CMD_SET_BSS,
10220 .doit = nl80211_set_bss,
10221 .policy = nl80211_policy,
b2e1b302 10222 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10224 NL80211_FLAG_NEED_RTNL,
b2e1b302 10225 },
f130347c
LR		 10226 {
10227 .cmd = NL80211_CMD_GET_REG,
10228 .doit = nl80211_get_reg,
10229 .policy = nl80211_policy,
5fe231e8 10230 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10231 /* can be retrieved by unprivileged users */
10232 },
b2e1b302
LR		 10233 {
10234 .cmd = NL80211_CMD_SET_REG,
10235 .doit = nl80211_set_reg,
10236 .policy = nl80211_policy,
10237 .flags = GENL_ADMIN_PERM,
5fe231e8 10238 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10239 },
10240 {
10241 .cmd = NL80211_CMD_REQ_SET_REG,
10242 .doit = nl80211_req_set_reg,
10243 .policy = nl80211_policy,
93da9cc1 10244 .flags = GENL_ADMIN_PERM,
10245 },
10246 {
24bdd9f4
JC		 10247 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10248 .doit = nl80211_get_mesh_config,
93da9cc1 10249 .policy = nl80211_policy,
10250 /* can be retrieved by unprivileged users */
2b5f8b0b 10251 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10252 NL80211_FLAG_NEED_RTNL,
93da9cc1 10253 },
10254 {
24bdd9f4
JC		 10255 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10256 .doit = nl80211_update_mesh_config,
93da9cc1 10257 .policy = nl80211_policy,
9aed3cc1 10258 .flags = GENL_ADMIN_PERM,
29cbe68c 10259 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10260 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10261 },
2a519311
JB		 10262 {
10263 .cmd = NL80211_CMD_TRIGGER_SCAN,
10264 .doit = nl80211_trigger_scan,
10265 .policy = nl80211_policy,
10266 .flags = GENL_ADMIN_PERM,
fd014284 10267 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10268 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10269 },
10270 {
10271 .cmd = NL80211_CMD_GET_SCAN,
10272 .policy = nl80211_policy,
10273 .dumpit = nl80211_dump_scan,
10274 },
807f8a8c
LC		 10275 {
10276 .cmd = NL80211_CMD_START_SCHED_SCAN,
10277 .doit = nl80211_start_sched_scan,
10278 .policy = nl80211_policy,
10279 .flags = GENL_ADMIN_PERM,
10280 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10281 NL80211_FLAG_NEED_RTNL,
10282 },
10283 {
10284 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10285 .doit = nl80211_stop_sched_scan,
10286 .policy = nl80211_policy,
10287 .flags = GENL_ADMIN_PERM,
10288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10289 NL80211_FLAG_NEED_RTNL,
10290 },
636a5d36
JM		 10291 {
10292 .cmd = NL80211_CMD_AUTHENTICATE,
10293 .doit = nl80211_authenticate,
10294 .policy = nl80211_policy,
10295 .flags = GENL_ADMIN_PERM,
41265714 10296 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10297 NL80211_FLAG_NEED_RTNL |
10298 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10299 },
10300 {
10301 .cmd = NL80211_CMD_ASSOCIATE,
10302 .doit = nl80211_associate,
10303 .policy = nl80211_policy,
10304 .flags = GENL_ADMIN_PERM,
41265714 10305 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10306 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10307 },
10308 {
10309 .cmd = NL80211_CMD_DEAUTHENTICATE,
10310 .doit = nl80211_deauthenticate,
10311 .policy = nl80211_policy,
10312 .flags = GENL_ADMIN_PERM,
41265714 10313 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10314 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10315 },
10316 {
10317 .cmd = NL80211_CMD_DISASSOCIATE,
10318 .doit = nl80211_disassociate,
10319 .policy = nl80211_policy,
10320 .flags = GENL_ADMIN_PERM,
41265714 10321 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10322 NL80211_FLAG_NEED_RTNL,
636a5d36 10323 },
04a773ad
JB		 10324 {
10325 .cmd = NL80211_CMD_JOIN_IBSS,
10326 .doit = nl80211_join_ibss,
10327 .policy = nl80211_policy,
10328 .flags = GENL_ADMIN_PERM,
41265714 10329 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10330 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10331 },
10332 {
10333 .cmd = NL80211_CMD_LEAVE_IBSS,
10334 .doit = nl80211_leave_ibss,
10335 .policy = nl80211_policy,
10336 .flags = GENL_ADMIN_PERM,
41265714 10337 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10338 NL80211_FLAG_NEED_RTNL,
04a773ad 10339 },
aff89a9b
JB		 10340#ifdef CONFIG_NL80211_TESTMODE
10341 {
10342 .cmd = NL80211_CMD_TESTMODE,
10343 .doit = nl80211_testmode_do,
71063f0e 10344 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10345 .policy = nl80211_policy,
10346 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10347 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10348 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10349 },
10350#endif
b23aa676
SO		 10351 {
10352 .cmd = NL80211_CMD_CONNECT,
10353 .doit = nl80211_connect,
10354 .policy = nl80211_policy,
10355 .flags = GENL_ADMIN_PERM,
41265714 10356 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10357 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10358 },
10359 {
10360 .cmd = NL80211_CMD_DISCONNECT,
10361 .doit = nl80211_disconnect,
10362 .policy = nl80211_policy,
10363 .flags = GENL_ADMIN_PERM,
41265714 10364 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10365 NL80211_FLAG_NEED_RTNL,
b23aa676 10366 },
463d0183
JB		 10367 {
10368 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10369 .doit = nl80211_wiphy_netns,
10370 .policy = nl80211_policy,
10371 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10372 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10373 NL80211_FLAG_NEED_RTNL,
463d0183 10374 },
61fa713c
HS		 10375 {
10376 .cmd = NL80211_CMD_GET_SURVEY,
10377 .policy = nl80211_policy,
10378 .dumpit = nl80211_dump_survey,
10379 },
67fbb16b
SO		 10380 {
10381 .cmd = NL80211_CMD_SET_PMKSA,
10382 .doit = nl80211_setdel_pmksa,
10383 .policy = nl80211_policy,
10384 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10385 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10386 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10387 },
10388 {
10389 .cmd = NL80211_CMD_DEL_PMKSA,
10390 .doit = nl80211_setdel_pmksa,
10391 .policy = nl80211_policy,
10392 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10394 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10395 },
10396 {
10397 .cmd = NL80211_CMD_FLUSH_PMKSA,
10398 .doit = nl80211_flush_pmksa,
10399 .policy = nl80211_policy,
10400 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10401 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10402 NL80211_FLAG_NEED_RTNL,
67fbb16b 10403 },
9588bbd5
JM		 10404 {
10405 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10406 .doit = nl80211_remain_on_channel,
10407 .policy = nl80211_policy,
10408 .flags = GENL_ADMIN_PERM,
71bbc994 10409 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10410 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10411 },
10412 {
10413 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10414 .doit = nl80211_cancel_remain_on_channel,
10415 .policy = nl80211_policy,
10416 .flags = GENL_ADMIN_PERM,
71bbc994 10417 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10418 NL80211_FLAG_NEED_RTNL,
9588bbd5 10419 },
13ae75b1
JM		 10420 {
10421 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10422 .doit = nl80211_set_tx_bitrate_mask,
10423 .policy = nl80211_policy,
10424 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10425 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10426 NL80211_FLAG_NEED_RTNL,
13ae75b1 10427 },
026331c4 10428 {
2e161f78
JB		 10429 .cmd = NL80211_CMD_REGISTER_FRAME,
10430 .doit = nl80211_register_mgmt,
026331c4
JM		 10431 .policy = nl80211_policy,
10432 .flags = GENL_ADMIN_PERM,
71bbc994 10433 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10434 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10435 },
10436 {
2e161f78
JB		 10437 .cmd = NL80211_CMD_FRAME,
10438 .doit = nl80211_tx_mgmt,
026331c4 10439 .policy = nl80211_policy,
f7ca38df 10440 .flags = GENL_ADMIN_PERM,
71bbc994 10441 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10442 NL80211_FLAG_NEED_RTNL,
10443 },
10444 {
10445 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10446 .doit = nl80211_tx_mgmt_cancel_wait,
10447 .policy = nl80211_policy,
026331c4 10448 .flags = GENL_ADMIN_PERM,
71bbc994 10449 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10450 NL80211_FLAG_NEED_RTNL,
026331c4 10451 },
ffb9eb3d
KV		 10452 {
10453 .cmd = NL80211_CMD_SET_POWER_SAVE,
10454 .doit = nl80211_set_power_save,
10455 .policy = nl80211_policy,
10456 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10457 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10458 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10459 },
10460 {
10461 .cmd = NL80211_CMD_GET_POWER_SAVE,
10462 .doit = nl80211_get_power_save,
10463 .policy = nl80211_policy,
10464 /* can be retrieved by unprivileged users */
4c476991
JB		 10465 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10466 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10467 },
d6dc1a38
JO		 10468 {
10469 .cmd = NL80211_CMD_SET_CQM,
10470 .doit = nl80211_set_cqm,
10471 .policy = nl80211_policy,
10472 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10473 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10474 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10475 },
f444de05
JB		 10476 {
10477 .cmd = NL80211_CMD_SET_CHANNEL,
10478 .doit = nl80211_set_channel,
10479 .policy = nl80211_policy,
10480 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10481 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10482 NL80211_FLAG_NEED_RTNL,
f444de05 10483 },
e8347eba
BJ		 10484 {
10485 .cmd = NL80211_CMD_SET_WDS_PEER,
10486 .doit = nl80211_set_wds_peer,
10487 .policy = nl80211_policy,
10488 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10489 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10490 NL80211_FLAG_NEED_RTNL,
e8347eba 10491 },
29cbe68c
JB		 10492 {
10493 .cmd = NL80211_CMD_JOIN_MESH,
10494 .doit = nl80211_join_mesh,
10495 .policy = nl80211_policy,
10496 .flags = GENL_ADMIN_PERM,
10497 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10498 NL80211_FLAG_NEED_RTNL,
10499 },
10500 {
10501 .cmd = NL80211_CMD_LEAVE_MESH,
10502 .doit = nl80211_leave_mesh,
10503 .policy = nl80211_policy,
10504 .flags = GENL_ADMIN_PERM,
10505 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10506 NL80211_FLAG_NEED_RTNL,
10507 },
6e0bd6c3
RL		 10508 {
10509 .cmd = NL80211_CMD_JOIN_OCB,
10510 .doit = nl80211_join_ocb,
10511 .policy = nl80211_policy,
10512 .flags = GENL_ADMIN_PERM,
10513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10514 NL80211_FLAG_NEED_RTNL,
10515 },
10516 {
10517 .cmd = NL80211_CMD_LEAVE_OCB,
10518 .doit = nl80211_leave_ocb,
10519 .policy = nl80211_policy,
10520 .flags = GENL_ADMIN_PERM,
10521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10522 NL80211_FLAG_NEED_RTNL,
10523 },
dfb89c56 10524#ifdef CONFIG_PM
ff1b6e69
JB		 10525 {
10526 .cmd = NL80211_CMD_GET_WOWLAN,
10527 .doit = nl80211_get_wowlan,
10528 .policy = nl80211_policy,
10529 /* can be retrieved by unprivileged users */
10530 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10531 NL80211_FLAG_NEED_RTNL,
10532 },
10533 {
10534 .cmd = NL80211_CMD_SET_WOWLAN,
10535 .doit = nl80211_set_wowlan,
10536 .policy = nl80211_policy,
10537 .flags = GENL_ADMIN_PERM,
10538 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10539 NL80211_FLAG_NEED_RTNL,
10540 },
dfb89c56 10541#endif
e5497d76
JB		 10542 {
10543 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10544 .doit = nl80211_set_rekey_data,
10545 .policy = nl80211_policy,
10546 .flags = GENL_ADMIN_PERM,
10547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10548 NL80211_FLAG_NEED_RTNL |
10549 NL80211_FLAG_CLEAR_SKB,
e5497d76 10550 },
109086ce
AN		 10551 {
10552 .cmd = NL80211_CMD_TDLS_MGMT,
10553 .doit = nl80211_tdls_mgmt,
10554 .policy = nl80211_policy,
10555 .flags = GENL_ADMIN_PERM,
10556 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10557 NL80211_FLAG_NEED_RTNL,
10558 },
10559 {
10560 .cmd = NL80211_CMD_TDLS_OPER,
10561 .doit = nl80211_tdls_oper,
10562 .policy = nl80211_policy,
10563 .flags = GENL_ADMIN_PERM,
10564 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10565 NL80211_FLAG_NEED_RTNL,
10566 },
28946da7
JB		 10567 {
10568 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10569 .doit = nl80211_register_unexpected_frame,
10570 .policy = nl80211_policy,
10571 .flags = GENL_ADMIN_PERM,
10572 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10573 NL80211_FLAG_NEED_RTNL,
10574 },
7f6cf311
JB		 10575 {
10576 .cmd = NL80211_CMD_PROBE_CLIENT,
10577 .doit = nl80211_probe_client,
10578 .policy = nl80211_policy,
10579 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10580 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10581 NL80211_FLAG_NEED_RTNL,
10582 },
5e760230
JB		 10583 {
10584 .cmd = NL80211_CMD_REGISTER_BEACONS,
10585 .doit = nl80211_register_beacons,
10586 .policy = nl80211_policy,
10587 .flags = GENL_ADMIN_PERM,
10588 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10589 NL80211_FLAG_NEED_RTNL,
10590 },
1d9d9213
SW		 10591 {
10592 .cmd = NL80211_CMD_SET_NOACK_MAP,
10593 .doit = nl80211_set_noack_map,
10594 .policy = nl80211_policy,
10595 .flags = GENL_ADMIN_PERM,
10596 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10597 NL80211_FLAG_NEED_RTNL,
10598 },
98104fde
JB		 10599 {
10600 .cmd = NL80211_CMD_START_P2P_DEVICE,
10601 .doit = nl80211_start_p2p_device,
10602 .policy = nl80211_policy,
10603 .flags = GENL_ADMIN_PERM,
10604 .internal_flags = NL80211_FLAG_NEED_WDEV |
10605 NL80211_FLAG_NEED_RTNL,
10606 },
10607 {
10608 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10609 .doit = nl80211_stop_p2p_device,
10610 .policy = nl80211_policy,
10611 .flags = GENL_ADMIN_PERM,
10612 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10613 NL80211_FLAG_NEED_RTNL,
10614 },
f4e583c8
AQ		 10615 {
10616 .cmd = NL80211_CMD_SET_MCAST_RATE,
10617 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10618 .policy = nl80211_policy,
10619 .flags = GENL_ADMIN_PERM,
10620 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10621 NL80211_FLAG_NEED_RTNL,
10622 },
10623 {
10624 .cmd = NL80211_CMD_SET_MAC_ACL,
10625 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10626 .policy = nl80211_policy,
10627 .flags = GENL_ADMIN_PERM,
10628 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10629 NL80211_FLAG_NEED_RTNL,
10630 },
04f39047
SW		 10631 {
10632 .cmd = NL80211_CMD_RADAR_DETECT,
10633 .doit = nl80211_start_radar_detection,
10634 .policy = nl80211_policy,
10635 .flags = GENL_ADMIN_PERM,
10636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10637 NL80211_FLAG_NEED_RTNL,
10638 },
3713b4e3
JB		 10639 {
10640 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10641 .doit = nl80211_get_protocol_features,
10642 .policy = nl80211_policy,
10643 },
355199e0
JM		 10644 {
10645 .cmd = NL80211_CMD_UPDATE_FT_IES,
10646 .doit = nl80211_update_ft_ies,
10647 .policy = nl80211_policy,
10648 .flags = GENL_ADMIN_PERM,
10649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10650 NL80211_FLAG_NEED_RTNL,
10651 },
5de17984
AS		 10652 {
10653 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10654 .doit = nl80211_crit_protocol_start,
10655 .policy = nl80211_policy,
10656 .flags = GENL_ADMIN_PERM,
10657 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10658 NL80211_FLAG_NEED_RTNL,
10659 },
10660 {
10661 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10662 .doit = nl80211_crit_protocol_stop,
10663 .policy = nl80211_policy,
10664 .flags = GENL_ADMIN_PERM,
10665 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10666 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10667 },
10668 {
10669 .cmd = NL80211_CMD_GET_COALESCE,
10670 .doit = nl80211_get_coalesce,
10671 .policy = nl80211_policy,
10672 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10673 NL80211_FLAG_NEED_RTNL,
10674 },
10675 {
10676 .cmd = NL80211_CMD_SET_COALESCE,
10677 .doit = nl80211_set_coalesce,
10678 .policy = nl80211_policy,
10679 .flags = GENL_ADMIN_PERM,
10680 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10681 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10682 },
10683 {
10684 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10685 .doit = nl80211_channel_switch,
10686 .policy = nl80211_policy,
10687 .flags = GENL_ADMIN_PERM,
10688 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10689 NL80211_FLAG_NEED_RTNL,
10690 },
ad7e718c
JB		 10691 {
10692 .cmd = NL80211_CMD_VENDOR,
10693 .doit = nl80211_vendor_cmd,
10694 .policy = nl80211_policy,
10695 .flags = GENL_ADMIN_PERM,
10696 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10697 NL80211_FLAG_NEED_RTNL,
10698 },
fa9ffc74
KP		 10699 {
10700 .cmd = NL80211_CMD_SET_QOS_MAP,
10701 .doit = nl80211_set_qos_map,
10702 .policy = nl80211_policy,
10703 .flags = GENL_ADMIN_PERM,
10704 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10705 NL80211_FLAG_NEED_RTNL,
10706 },
960d01ac
JB		 10707 {
10708 .cmd = NL80211_CMD_ADD_TX_TS,
10709 .doit = nl80211_add_tx_ts,
10710 .policy = nl80211_policy,
10711 .flags = GENL_ADMIN_PERM,
10712 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10713 NL80211_FLAG_NEED_RTNL,
10714 },
10715 {
10716 .cmd = NL80211_CMD_DEL_TX_TS,
10717 .doit = nl80211_del_tx_ts,
10718 .policy = nl80211_policy,
10719 .flags = GENL_ADMIN_PERM,
10720 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10721 NL80211_FLAG_NEED_RTNL,
10722 },
1057d35e
AN		 10723 {
10724 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10725 .doit = nl80211_tdls_channel_switch,
10726 .policy = nl80211_policy,
10727 .flags = GENL_ADMIN_PERM,
10728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10729 NL80211_FLAG_NEED_RTNL,
10730 },
10731 {
10732 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10733 .doit = nl80211_tdls_cancel_channel_switch,
10734 .policy = nl80211_policy,
10735 .flags = GENL_ADMIN_PERM,
10736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10737 NL80211_FLAG_NEED_RTNL,
10738 },
55682965 10739};
9588bbd5 10740
55682965
JB		 10741/* notification functions */
10742
3bb20556
JB		 10743void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10744 enum nl80211_commands cmd)
55682965
JB		 10745{
10746 struct sk_buff *msg;
86e8cf98 10747 struct nl80211_dump_wiphy_state state = {};
55682965 10748
3bb20556
JB		 10749 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10750 cmd != NL80211_CMD_DEL_WIPHY);
10751
fd2120ca 10752 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10753 if (!msg)
10754 return;
10755
3bb20556 10756 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10757 nlmsg_free(msg);
10758 return;
10759 }
10760
68eb5503 10761 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10762 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10763}
10764
362a415d
JB		 10765static int nl80211_add_scan_req(struct sk_buff *msg,
10766 struct cfg80211_registered_device *rdev)
10767{
10768 struct cfg80211_scan_request *req = rdev->scan_req;
10769 struct nlattr *nest;
10770 int i;
10771
10772 if (WARN_ON(!req))
10773 return 0;
10774
10775 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10776 if (!nest)
10777 goto nla_put_failure;
9360ffd1
DM		 10778 for (i = 0; i < req->n_ssids; i++) {
10779 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10780 goto nla_put_failure;
10781 }
362a415d
JB		 10782 nla_nest_end(msg, nest);
10783
10784 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10785 if (!nest)
10786 goto nla_put_failure;
9360ffd1
DM		 10787 for (i = 0; i < req->n_channels; i++) {
10788 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10789 goto nla_put_failure;
10790 }
362a415d
JB		 10791 nla_nest_end(msg, nest);
10792
9360ffd1
DM		 10793 if (req->ie &&
10794 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10795 goto nla_put_failure;
362a415d 10796
ae917c9f
JB		 10797 if (req->flags &&
10798 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10799 goto nla_put_failure;
ed473771 10800
362a415d
JB		 10801 return 0;
10802 nla_put_failure:
10803 return -ENOBUFS;
10804}
10805
a538e2d5
JB		 10806static int nl80211_send_scan_msg(struct sk_buff *msg,
10807 struct cfg80211_registered_device *rdev,
fd014284 10808 struct wireless_dev *wdev,
15e47304 10809 u32 portid, u32 seq, int flags,
a538e2d5 10810 u32 cmd)
2a519311
JB		 10811{
10812 void *hdr;
10813
15e47304 10814 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10815 if (!hdr)
10816 return -1;
10817
9360ffd1 10818 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10819 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10820 wdev->netdev->ifindex)) ||
10821 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10822 goto nla_put_failure;
2a519311 10823
362a415d
JB		 10824 /* ignore errors and send incomplete event anyway */
10825 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10826
10827 return genlmsg_end(msg, hdr);
10828
10829 nla_put_failure:
10830 genlmsg_cancel(msg, hdr);
10831 return -EMSGSIZE;
10832}
10833
807f8a8c
LC		 10834static int
10835nl80211_send_sched_scan_msg(struct sk_buff *msg,
10836 struct cfg80211_registered_device *rdev,
10837 struct net_device *netdev,
15e47304 10838 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10839{
10840 void *hdr;
10841
15e47304 10842 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10843 if (!hdr)
10844 return -1;
10845
9360ffd1
DM		 10846 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10847 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10848 goto nla_put_failure;
807f8a8c
LC		 10849
10850 return genlmsg_end(msg, hdr);
10851
10852 nla_put_failure:
10853 genlmsg_cancel(msg, hdr);
10854 return -EMSGSIZE;
10855}
10856
a538e2d5 10857void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10858 struct wireless_dev *wdev)
a538e2d5
JB		 10859{
10860 struct sk_buff *msg;
10861
58050fce 10862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10863 if (!msg)
10864 return;
10865
fd014284 10866 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10867 NL80211_CMD_TRIGGER_SCAN) < 0) {
10868 nlmsg_free(msg);
10869 return;
10870 }
10871
68eb5503 10872 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10873 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10874}
10875
f9d15d16
JB		 10876struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10877 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10878{
10879 struct sk_buff *msg;
10880
fd2120ca 10881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10882 if (!msg)
f9d15d16 10883 return NULL;
2a519311 10884
fd014284 10885 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10886 aborted ? NL80211_CMD_SCAN_ABORTED :
10887 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10888 nlmsg_free(msg);
f9d15d16 10889 return NULL;
2a519311
JB		 10890 }
10891
f9d15d16 10892 return msg;
2a519311
JB		 10893}
10894
f9d15d16
JB		 10895void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10896 struct sk_buff *msg)
2a519311 10897{
2a519311
JB		 10898 if (!msg)
10899 return;
10900
68eb5503 10901 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10902 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10903}
10904
807f8a8c
LC		 10905void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10906 struct net_device *netdev)
10907{
10908 struct sk_buff *msg;
10909
10910 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10911 if (!msg)
10912 return;
10913
10914 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10915 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10916 nlmsg_free(msg);
10917 return;
10918 }
10919
68eb5503 10920 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10921 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10922}
10923
10924void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10925 struct net_device *netdev, u32 cmd)
10926{
10927 struct sk_buff *msg;
10928
58050fce 10929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10930 if (!msg)
10931 return;
10932
10933 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10934 nlmsg_free(msg);
10935 return;
10936 }
10937
68eb5503 10938 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10939 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10940}
10941
73d54c9e
LR		 10942/*
10943 * This can happen on global regulatory changes or device specific settings
10944 * based on custom world regulatory domains.
10945 */
10946void nl80211_send_reg_change_event(struct regulatory_request *request)
10947{
10948 struct sk_buff *msg;
10949 void *hdr;
10950
fd2120ca 10951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10952 if (!msg)
10953 return;
10954
10955 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10956 if (!hdr) {
10957 nlmsg_free(msg);
10958 return;
10959 }
10960
10961 /* Userspace can always count this one always being set */
9360ffd1
DM		 10962 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10963 goto nla_put_failure;
10964
10965 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10966 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10967 NL80211_REGDOM_TYPE_WORLD))
10968 goto nla_put_failure;
10969 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10970 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10971 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10972 goto nla_put_failure;
10973 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10974 request->intersect) {
10975 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10976 NL80211_REGDOM_TYPE_INTERSECTION))
10977 goto nla_put_failure;
10978 } else {
10979 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10980 NL80211_REGDOM_TYPE_COUNTRY) ||
10981 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10982 request->alpha2))
10983 goto nla_put_failure;
10984 }
10985
f4173766 10986 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10987 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10988 goto nla_put_failure;
73d54c9e 10989
3b7b72ee 10990 genlmsg_end(msg, hdr);
73d54c9e 10991
bc43b28c 10992 rcu_read_lock();
68eb5503 10993 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10994 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10995 rcu_read_unlock();
73d54c9e
LR		 10996
10997 return;
10998
10999nla_put_failure:
11000 genlmsg_cancel(msg, hdr);
11001 nlmsg_free(msg);
11002}
11003
6039f6d2
JM		 11004static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11005 struct net_device *netdev,
11006 const u8 *buf, size_t len,
b0b6aa2c
EP		 11007 enum nl80211_commands cmd, gfp_t gfp,
11008 int uapsd_queues)
6039f6d2
JM		 11009{
11010 struct sk_buff *msg;
11011 void *hdr;
11012
e6d6e342 11013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11014 if (!msg)
11015 return;
11016
11017 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11018 if (!hdr) {
11019 nlmsg_free(msg);
11020 return;
11021 }
11022
9360ffd1
DM		 11023 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11024 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11025 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11026 goto nla_put_failure;
6039f6d2 11027
b0b6aa2c
EP		 11028 if (uapsd_queues >= 0) {
11029 struct nlattr *nla_wmm =
11030 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11031 if (!nla_wmm)
11032 goto nla_put_failure;
11033
11034 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11035 uapsd_queues))
11036 goto nla_put_failure;
11037
11038 nla_nest_end(msg, nla_wmm);
11039 }
11040
3b7b72ee 11041 genlmsg_end(msg, hdr);
6039f6d2 11042
68eb5503 11043 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11044 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11045 return;
11046
11047 nla_put_failure:
11048 genlmsg_cancel(msg, hdr);
11049 nlmsg_free(msg);
11050}
11051
11052void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11053 struct net_device *netdev, const u8 *buf,
11054 size_t len, gfp_t gfp)
6039f6d2
JM		 11055{
11056 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11057 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11058}
11059
11060void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11061 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11062 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11063{
e6d6e342 11064 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11065 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11066}
11067
53b46b84 11068void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11069 struct net_device *netdev, const u8 *buf,
11070 size_t len, gfp_t gfp)
6039f6d2
JM		 11071{
11072 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11073 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11074}
11075
53b46b84
JM		 11076void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11077 struct net_device *netdev, const u8 *buf,
e6d6e342 11078 size_t len, gfp_t gfp)
6039f6d2
JM		 11079{
11080 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11081 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11082}
11083
6ff57cf8
JB		 11084void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11085 size_t len)
cf4e594e 11086{
947add36
JB		 11087 struct wireless_dev *wdev = dev->ieee80211_ptr;
11088 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11089 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11090 const struct ieee80211_mgmt *mgmt = (void *)buf;
11091 u32 cmd;
947add36 11092
6ff57cf8
JB		 11093 if (WARN_ON(len < 2))
11094 return;
cf4e594e 11095
6ff57cf8
JB		 11096 if (ieee80211_is_deauth(mgmt->frame_control))
11097 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11098 else
11099 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11100
6ff57cf8 11101 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11102 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11103}
6ff57cf8 11104EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11105
1b06bb40
LR		 11106static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11107 struct net_device *netdev, int cmd,
e6d6e342 11108 const u8 *addr, gfp_t gfp)
1965c853
JM		 11109{
11110 struct sk_buff *msg;
11111 void *hdr;
11112
e6d6e342 11113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11114 if (!msg)
11115 return;
11116
11117 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11118 if (!hdr) {
11119 nlmsg_free(msg);
11120 return;
11121 }
11122
9360ffd1
DM		 11123 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11124 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11125 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11126 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11127 goto nla_put_failure;
1965c853 11128
3b7b72ee 11129 genlmsg_end(msg, hdr);
1965c853 11130
68eb5503 11131 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11132 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11133 return;
11134
11135 nla_put_failure:
11136 genlmsg_cancel(msg, hdr);
11137 nlmsg_free(msg);
11138}
11139
11140void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11141 struct net_device *netdev, const u8 *addr,
11142 gfp_t gfp)
1965c853
JM		 11143{
11144 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11145 addr, gfp);
1965c853
JM		 11146}
11147
11148void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11149 struct net_device *netdev, const u8 *addr,
11150 gfp_t gfp)
1965c853 11151{
e6d6e342
JB		 11152 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11153 addr, gfp);
1965c853
JM		 11154}
11155
b23aa676
SO		 11156void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11157 struct net_device *netdev, const u8 *bssid,
11158 const u8 *req_ie, size_t req_ie_len,
11159 const u8 *resp_ie, size_t resp_ie_len,
11160 u16 status, gfp_t gfp)
11161{
11162 struct sk_buff *msg;
11163 void *hdr;
11164
58050fce 11165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11166 if (!msg)
11167 return;
11168
11169 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11170 if (!hdr) {
11171 nlmsg_free(msg);
11172 return;
11173 }
11174
9360ffd1
DM		 11175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11176 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11177 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11178 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11179 (req_ie &&
11180 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11181 (resp_ie &&
11182 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11183 goto nla_put_failure;
b23aa676 11184
3b7b72ee 11185 genlmsg_end(msg, hdr);
b23aa676 11186
68eb5503 11187 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11188 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11189 return;
11190
11191 nla_put_failure:
11192 genlmsg_cancel(msg, hdr);
11193 nlmsg_free(msg);
11194
11195}
11196
11197void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11198 struct net_device *netdev, const u8 *bssid,
11199 const u8 *req_ie, size_t req_ie_len,
11200 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11201{
11202 struct sk_buff *msg;
11203 void *hdr;
11204
58050fce 11205 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11206 if (!msg)
11207 return;
11208
11209 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11210 if (!hdr) {
11211 nlmsg_free(msg);
11212 return;
11213 }
11214
9360ffd1
DM		 11215 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11216 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11217 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11218 (req_ie &&
11219 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11220 (resp_ie &&
11221 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11222 goto nla_put_failure;
b23aa676 11223
3b7b72ee 11224 genlmsg_end(msg, hdr);
b23aa676 11225
68eb5503 11226 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11227 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11228 return;
11229
11230 nla_put_failure:
11231 genlmsg_cancel(msg, hdr);
11232 nlmsg_free(msg);
11233
11234}
11235
11236void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11237 struct net_device *netdev, u16 reason,
667503dd 11238 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11239{
11240 struct sk_buff *msg;
11241 void *hdr;
11242
58050fce 11243 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11244 if (!msg)
11245 return;
11246
11247 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
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 (from_ap && reason &&
11256 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11257 (from_ap &&
11258 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11259 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11260 goto nla_put_failure;
b23aa676 11261
3b7b72ee 11262 genlmsg_end(msg, hdr);
b23aa676 11263
68eb5503 11264 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11265 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11266 return;
11267
11268 nla_put_failure:
11269 genlmsg_cancel(msg, hdr);
11270 nlmsg_free(msg);
11271
11272}
11273
04a773ad
JB		 11274void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11275 struct net_device *netdev, const u8 *bssid,
11276 gfp_t gfp)
11277{
11278 struct sk_buff *msg;
11279 void *hdr;
11280
fd2120ca 11281 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11282 if (!msg)
11283 return;
11284
11285 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11286 if (!hdr) {
11287 nlmsg_free(msg);
11288 return;
11289 }
11290
9360ffd1
DM		 11291 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11292 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11293 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11294 goto nla_put_failure;
04a773ad 11295
3b7b72ee 11296 genlmsg_end(msg, hdr);
04a773ad 11297
68eb5503 11298 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11299 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11300 return;
11301
11302 nla_put_failure:
11303 genlmsg_cancel(msg, hdr);
11304 nlmsg_free(msg);
11305}
11306
947add36
JB		 11307void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11308 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11309{
947add36 11310 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11311 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11312 struct sk_buff *msg;
11313 void *hdr;
11314
947add36
JB		 11315 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11316 return;
11317
11318 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11319
c93b5e71
JC		 11320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11321 if (!msg)
11322 return;
11323
11324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11325 if (!hdr) {
11326 nlmsg_free(msg);
11327 return;
11328 }
11329
9360ffd1 11330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11331 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11332 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11333 (ie_len && ie &&
11334 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11335 goto nla_put_failure;
c93b5e71 11336
3b7b72ee 11337 genlmsg_end(msg, hdr);
c93b5e71 11338
68eb5503 11339 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11340 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11341 return;
11342
11343 nla_put_failure:
11344 genlmsg_cancel(msg, hdr);
11345 nlmsg_free(msg);
11346}
947add36 11347EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11348
a3b8b056
JM		 11349void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11350 struct net_device *netdev, const u8 *addr,
11351 enum nl80211_key_type key_type, int key_id,
e6d6e342 11352 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11353{
11354 struct sk_buff *msg;
11355 void *hdr;
11356
e6d6e342 11357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11358 if (!msg)
11359 return;
11360
11361 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11362 if (!hdr) {
11363 nlmsg_free(msg);
11364 return;
11365 }
11366
9360ffd1
DM		 11367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11368 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11369 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11370 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11371 (key_id != -1 &&
11372 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11373 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11374 goto nla_put_failure;
a3b8b056 11375
3b7b72ee 11376 genlmsg_end(msg, hdr);
a3b8b056 11377
68eb5503 11378 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11379 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11380 return;
11381
11382 nla_put_failure:
11383 genlmsg_cancel(msg, hdr);
11384 nlmsg_free(msg);
11385}
11386
6bad8766
LR		 11387void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11388 struct ieee80211_channel *channel_before,
11389 struct ieee80211_channel *channel_after)
11390{
11391 struct sk_buff *msg;
11392 void *hdr;
11393 struct nlattr *nl_freq;
11394
fd2120ca 11395 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11396 if (!msg)
11397 return;
11398
11399 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11400 if (!hdr) {
11401 nlmsg_free(msg);
11402 return;
11403 }
11404
11405 /*
11406 * Since we are applying the beacon hint to a wiphy we know its
11407 * wiphy_idx is valid
11408 */
9360ffd1
DM		 11409 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11410 goto nla_put_failure;
6bad8766
LR		 11411
11412 /* Before */
11413 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11414 if (!nl_freq)
11415 goto nla_put_failure;
cdc89b97 11416 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11417 goto nla_put_failure;
11418 nla_nest_end(msg, nl_freq);
11419
11420 /* After */
11421 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11422 if (!nl_freq)
11423 goto nla_put_failure;
cdc89b97 11424 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11425 goto nla_put_failure;
11426 nla_nest_end(msg, nl_freq);
11427
3b7b72ee 11428 genlmsg_end(msg, hdr);
6bad8766 11429
463d0183 11430 rcu_read_lock();
68eb5503 11431 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11432 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11433 rcu_read_unlock();
6bad8766
LR		 11434
11435 return;
11436
11437nla_put_failure:
11438 genlmsg_cancel(msg, hdr);
11439 nlmsg_free(msg);
11440}
11441
9588bbd5
JM		 11442static void nl80211_send_remain_on_chan_event(
11443 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11444 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11445 struct ieee80211_channel *chan,
9588bbd5
JM		 11446 unsigned int duration, gfp_t gfp)
11447{
11448 struct sk_buff *msg;
11449 void *hdr;
11450
11451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11452 if (!msg)
11453 return;
11454
11455 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11456 if (!hdr) {
11457 nlmsg_free(msg);
11458 return;
11459 }
11460
9360ffd1 11461 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11462 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11463 wdev->netdev->ifindex)) ||
00f53350 11464 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11465 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11466 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11467 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11468 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11469 goto nla_put_failure;
9588bbd5 11470
9360ffd1
DM		 11471 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11472 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11473 goto nla_put_failure;
9588bbd5 11474
3b7b72ee 11475 genlmsg_end(msg, hdr);
9588bbd5 11476
68eb5503 11477 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11478 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11479 return;
11480
11481 nla_put_failure:
11482 genlmsg_cancel(msg, hdr);
11483 nlmsg_free(msg);
11484}
11485
947add36
JB		 11486void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11487 struct ieee80211_channel *chan,
11488 unsigned int duration, gfp_t gfp)
9588bbd5 11489{
947add36 11490 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11491 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11492
11493 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11494 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11495 rdev, wdev, cookie, chan,
42d97a59 11496 duration, gfp);
9588bbd5 11497}
947add36 11498EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11499
947add36
JB		 11500void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11501 struct ieee80211_channel *chan,
11502 gfp_t gfp)
9588bbd5 11503{
947add36 11504 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11505 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11506
11507 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11508 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11509 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11510}
947add36 11511EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11512
947add36
JB		 11513void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11514 struct station_info *sinfo, gfp_t gfp)
98b62183 11515{
947add36 11516 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11517 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11518 struct sk_buff *msg;
11519
947add36
JB		 11520 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11521
58050fce 11522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11523 if (!msg)
11524 return;
11525
66266b3a
JL		 11526 if (nl80211_send_station(msg, 0, 0, 0,
11527 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11528 nlmsg_free(msg);
11529 return;
11530 }
11531
68eb5503 11532 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11533 NL80211_MCGRP_MLME, gfp);
98b62183 11534}
947add36 11535EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11536
947add36 11537void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11538{
947add36 11539 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11540 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11541 struct sk_buff *msg;
11542 void *hdr;
11543
947add36
JB		 11544 trace_cfg80211_del_sta(dev, mac_addr);
11545
58050fce 11546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11547 if (!msg)
11548 return;
11549
11550 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11551 if (!hdr) {
11552 nlmsg_free(msg);
11553 return;
11554 }
11555
9360ffd1
DM		 11556 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11557 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11558 goto nla_put_failure;
ec15e68b 11559
3b7b72ee 11560 genlmsg_end(msg, hdr);
ec15e68b 11561
68eb5503 11562 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11563 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11564 return;
11565
11566 nla_put_failure:
11567 genlmsg_cancel(msg, hdr);
11568 nlmsg_free(msg);
11569}
947add36 11570EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11571
947add36
JB		 11572void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11573 enum nl80211_connect_failed_reason reason,
11574 gfp_t gfp)
ed44a951 11575{
947add36 11576 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11577 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11578 struct sk_buff *msg;
11579 void *hdr;
11580
11581 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11582 if (!msg)
11583 return;
11584
11585 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11586 if (!hdr) {
11587 nlmsg_free(msg);
11588 return;
11589 }
11590
11591 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11592 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11593 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11594 goto nla_put_failure;
11595
11596 genlmsg_end(msg, hdr);
11597
68eb5503 11598 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11599 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11600 return;
11601
11602 nla_put_failure:
11603 genlmsg_cancel(msg, hdr);
11604 nlmsg_free(msg);
11605}
947add36 11606EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11607
b92ab5d8
JB		 11608static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11609 const u8 *addr, gfp_t gfp)
28946da7
JB		 11610{
11611 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11612 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11613 struct sk_buff *msg;
11614 void *hdr;
15e47304 11615 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11616
15e47304 11617 if (!nlportid)
28946da7
JB		 11618 return false;
11619
11620 msg = nlmsg_new(100, gfp);
11621 if (!msg)
11622 return true;
11623
b92ab5d8 11624 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11625 if (!hdr) {
11626 nlmsg_free(msg);
11627 return true;
11628 }
11629
9360ffd1
DM		 11630 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11631 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11632 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11633 goto nla_put_failure;
28946da7 11634
9c90a9f6 11635 genlmsg_end(msg, hdr);
15e47304 11636 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11637 return true;
11638
11639 nla_put_failure:
11640 genlmsg_cancel(msg, hdr);
11641 nlmsg_free(msg);
11642 return true;
11643}
11644
947add36
JB		 11645bool cfg80211_rx_spurious_frame(struct net_device *dev,
11646 const u8 *addr, gfp_t gfp)
b92ab5d8 11647{
947add36
JB		 11648 struct wireless_dev *wdev = dev->ieee80211_ptr;
11649 bool ret;
11650
11651 trace_cfg80211_rx_spurious_frame(dev, addr);
11652
11653 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11654 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11655 trace_cfg80211_return_bool(false);
11656 return false;
11657 }
11658 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11659 addr, gfp);
11660 trace_cfg80211_return_bool(ret);
11661 return ret;
b92ab5d8 11662}
947add36 11663EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11664
947add36
JB		 11665bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11666 const u8 *addr, gfp_t gfp)
b92ab5d8 11667{
947add36
JB		 11668 struct wireless_dev *wdev = dev->ieee80211_ptr;
11669 bool ret;
11670
11671 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11672
11673 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11674 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11675 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11676 trace_cfg80211_return_bool(false);
11677 return false;
11678 }
11679 ret = __nl80211_unexpected_frame(dev,
11680 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11681 addr, gfp);
11682 trace_cfg80211_return_bool(ret);
11683 return ret;
b92ab5d8 11684}
947add36 11685EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11686
2e161f78 11687int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11688 struct wireless_dev *wdev, u32 nlportid,
804483e9 11689 int freq, int sig_dbm,
19504cf5 11690 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11691{
71bbc994 11692 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11693 struct sk_buff *msg;
11694 void *hdr;
026331c4
JM		 11695
11696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11697 if (!msg)
11698 return -ENOMEM;
11699
2e161f78 11700 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11701 if (!hdr) {
11702 nlmsg_free(msg);
11703 return -ENOMEM;
11704 }
11705
9360ffd1 11706 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11707 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11708 netdev->ifindex)) ||
a838490b 11709 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11710 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11711 (sig_dbm &&
11712 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11713 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11714 (flags &&
11715 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11716 goto nla_put_failure;
026331c4 11717
3b7b72ee 11718 genlmsg_end(msg, hdr);
026331c4 11719
15e47304 11720 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11721
11722 nla_put_failure:
11723 genlmsg_cancel(msg, hdr);
11724 nlmsg_free(msg);
11725 return -ENOBUFS;
11726}
11727
947add36
JB		 11728void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11729 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11730{
947add36 11731 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11732 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11733 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11734 struct sk_buff *msg;
11735 void *hdr;
11736
947add36
JB		 11737 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11738
026331c4
JM		 11739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11740 if (!msg)
11741 return;
11742
2e161f78 11743 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11744 if (!hdr) {
11745 nlmsg_free(msg);
11746 return;
11747 }
11748
9360ffd1 11749 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11750 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11751 netdev->ifindex)) ||
a838490b 11752 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11753 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11754 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11755 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11756 goto nla_put_failure;
026331c4 11757
3b7b72ee 11758 genlmsg_end(msg, hdr);
026331c4 11759
68eb5503 11760 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11761 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11762 return;
11763
11764 nla_put_failure:
11765 genlmsg_cancel(msg, hdr);
11766 nlmsg_free(msg);
11767}
947add36 11768EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11769
5b97f49d
JB		 11770static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
11771 const char *mac, gfp_t gfp)
d6dc1a38 11772{
947add36 11773 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 11774 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11775 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11776 void **cb;
947add36 11777
d6dc1a38 11778 if (!msg)
5b97f49d 11779 return NULL;
d6dc1a38 11780
5b97f49d
JB		 11781 cb = (void **)msg->cb;
11782
11783 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11784 if (!cb[0]) {
d6dc1a38 11785 nlmsg_free(msg);
5b97f49d 11786 return NULL;
d6dc1a38
JO		 11787 }
11788
9360ffd1 11789 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11790 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11791 goto nla_put_failure;
d6dc1a38 11792
5b97f49d 11793 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 11794 goto nla_put_failure;
11795
5b97f49d
JB		 11796 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
11797 if (!cb[1])
9360ffd1 11798 goto nla_put_failure;
d6dc1a38 11799
5b97f49d 11800 cb[2] = rdev;
d6dc1a38 11801
5b97f49d
JB		 11802 return msg;
11803 nla_put_failure:
11804 nlmsg_free(msg);
11805 return NULL;
11806}
11807
11808static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
11809{
11810 void **cb = (void **)msg->cb;
11811 struct cfg80211_registered_device *rdev = cb[2];
11812
11813 nla_nest_end(msg, cb[1]);
11814 genlmsg_end(msg, cb[0]);
11815
11816 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 11817
68eb5503 11818 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11819 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 11820}
11821
11822void cfg80211_cqm_rssi_notify(struct net_device *dev,
11823 enum nl80211_cqm_rssi_threshold_event rssi_event,
11824 gfp_t gfp)
11825{
11826 struct sk_buff *msg;
11827
11828 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11829
98f03342
JB		 11830 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
11831 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
11832 return;
11833
5b97f49d
JB		 11834 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
11835 if (!msg)
11836 return;
11837
11838 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11839 rssi_event))
11840 goto nla_put_failure;
11841
11842 cfg80211_send_cqm(msg, gfp);
11843
d6dc1a38
JO		 11844 return;
11845
11846 nla_put_failure:
d6dc1a38
JO		 11847 nlmsg_free(msg);
11848}
947add36 11849EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11850
5b97f49d
JB		 11851void cfg80211_cqm_txe_notify(struct net_device *dev,
11852 const u8 *peer, u32 num_packets,
11853 u32 rate, u32 intvl, gfp_t gfp)
11854{
11855 struct sk_buff *msg;
11856
11857 msg = cfg80211_prepare_cqm(dev, peer, gfp);
11858 if (!msg)
11859 return;
11860
11861 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11862 goto nla_put_failure;
11863
11864 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11865 goto nla_put_failure;
11866
11867 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11868 goto nla_put_failure;
11869
11870 cfg80211_send_cqm(msg, gfp);
11871 return;
11872
11873 nla_put_failure:
11874 nlmsg_free(msg);
11875}
11876EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11877
11878void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11879 const u8 *peer, u32 num_packets, gfp_t gfp)
11880{
11881 struct sk_buff *msg;
11882
11883 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11884
11885 msg = cfg80211_prepare_cqm(dev, peer, gfp);
11886 if (!msg)
11887 return;
11888
11889 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11890 goto nla_put_failure;
11891
11892 cfg80211_send_cqm(msg, gfp);
11893 return;
11894
11895 nla_put_failure:
11896 nlmsg_free(msg);
11897}
11898EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11899
98f03342
JB		 11900void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
11901{
11902 struct sk_buff *msg;
11903
11904 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
11905 if (!msg)
11906 return;
11907
11908 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
11909 goto nla_put_failure;
11910
11911 cfg80211_send_cqm(msg, gfp);
11912 return;
11913
11914 nla_put_failure:
11915 nlmsg_free(msg);
11916}
11917EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
11918
947add36
JB		 11919static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11920 struct net_device *netdev, const u8 *bssid,
11921 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11922{
11923 struct sk_buff *msg;
11924 struct nlattr *rekey_attr;
11925 void *hdr;
11926
58050fce 11927 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11928 if (!msg)
11929 return;
11930
11931 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11932 if (!hdr) {
11933 nlmsg_free(msg);
11934 return;
11935 }
11936
9360ffd1
DM		 11937 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11938 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11939 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11940 goto nla_put_failure;
e5497d76
JB		 11941
11942 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11943 if (!rekey_attr)
11944 goto nla_put_failure;
11945
9360ffd1
DM		 11946 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11947 NL80211_REPLAY_CTR_LEN, replay_ctr))
11948 goto nla_put_failure;
e5497d76
JB		 11949
11950 nla_nest_end(msg, rekey_attr);
11951
3b7b72ee 11952 genlmsg_end(msg, hdr);
e5497d76 11953
68eb5503 11954 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11955 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11956 return;
11957
11958 nla_put_failure:
11959 genlmsg_cancel(msg, hdr);
11960 nlmsg_free(msg);
11961}
11962
947add36
JB		 11963void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11964 const u8 *replay_ctr, gfp_t gfp)
11965{
11966 struct wireless_dev *wdev = dev->ieee80211_ptr;
11967 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11968 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11969
11970 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11971 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11972}
11973EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11974
11975static void
11976nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11977 struct net_device *netdev, int index,
11978 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11979{
11980 struct sk_buff *msg;
11981 struct nlattr *attr;
11982 void *hdr;
11983
58050fce 11984 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11985 if (!msg)
11986 return;
11987
11988 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11989 if (!hdr) {
11990 nlmsg_free(msg);
11991 return;
11992 }
11993
9360ffd1
DM		 11994 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11995 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11996 goto nla_put_failure;
c9df56b4
JM		 11997
11998 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11999 if (!attr)
12000 goto nla_put_failure;
12001
9360ffd1
DM		 12002 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12003 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12004 (preauth &&
12005 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12006 goto nla_put_failure;
c9df56b4
JM		 12007
12008 nla_nest_end(msg, attr);
12009
3b7b72ee 12010 genlmsg_end(msg, hdr);
c9df56b4 12011
68eb5503 12012 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12013 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12014 return;
12015
12016 nla_put_failure:
12017 genlmsg_cancel(msg, hdr);
12018 nlmsg_free(msg);
12019}
12020
947add36
JB		 12021void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12022 const u8 *bssid, bool preauth, gfp_t gfp)
12023{
12024 struct wireless_dev *wdev = dev->ieee80211_ptr;
12025 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12026 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12027
12028 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12029 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12030}
12031EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12032
12033static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12034 struct net_device *netdev,
12035 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12036 gfp_t gfp,
12037 enum nl80211_commands notif,
12038 u8 count)
5314526b
TP		 12039{
12040 struct sk_buff *msg;
12041 void *hdr;
12042
58050fce 12043 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12044 if (!msg)
12045 return;
12046
f8d7552e 12047 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12048 if (!hdr) {
12049 nlmsg_free(msg);
12050 return;
12051 }
12052
683b6d3b
JB		 12053 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12054 goto nla_put_failure;
12055
12056 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12057 goto nla_put_failure;
5314526b 12058
f8d7552e
LC		 12059 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12060 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12061 goto nla_put_failure;
12062
5314526b
TP		 12063 genlmsg_end(msg, hdr);
12064
68eb5503 12065 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12066 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12067 return;
12068
12069 nla_put_failure:
12070 genlmsg_cancel(msg, hdr);
12071 nlmsg_free(msg);
12072}
12073
947add36
JB		 12074void cfg80211_ch_switch_notify(struct net_device *dev,
12075 struct cfg80211_chan_def *chandef)
84f10708 12076{
947add36
JB		 12077 struct wireless_dev *wdev = dev->ieee80211_ptr;
12078 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12079 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12080
e487eaeb 12081 ASSERT_WDEV_LOCK(wdev);
947add36 12082
e487eaeb 12083 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12084
9e0e2961 12085 wdev->chandef = *chandef;
96f55f12 12086 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12087 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12088 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12089}
12090EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12091
f8d7552e
LC		 12092void cfg80211_ch_switch_started_notify(struct net_device *dev,
12093 struct cfg80211_chan_def *chandef,
12094 u8 count)
12095{
12096 struct wireless_dev *wdev = dev->ieee80211_ptr;
12097 struct wiphy *wiphy = wdev->wiphy;
12098 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12099
12100 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12101
12102 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12103 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12104}
12105EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12106
04f39047
SW		 12107void
12108nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12109 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12110 enum nl80211_radar_event event,
12111 struct net_device *netdev, gfp_t gfp)
12112{
12113 struct sk_buff *msg;
12114 void *hdr;
12115
12116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12117 if (!msg)
12118 return;
12119
12120 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12121 if (!hdr) {
12122 nlmsg_free(msg);
12123 return;
12124 }
12125
12126 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12127 goto nla_put_failure;
12128
12129 /* NOP and radar events don't need a netdev parameter */
12130 if (netdev) {
12131 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12132
12133 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12134 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12135 goto nla_put_failure;
12136 }
12137
12138 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12139 goto nla_put_failure;
12140
12141 if (nl80211_send_chandef(msg, chandef))
12142 goto nla_put_failure;
12143
9c90a9f6 12144 genlmsg_end(msg, hdr);
04f39047 12145
68eb5503 12146 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12147 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12148 return;
12149
12150 nla_put_failure:
12151 genlmsg_cancel(msg, hdr);
12152 nlmsg_free(msg);
12153}
12154
7f6cf311
JB		 12155void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12156 u64 cookie, bool acked, gfp_t gfp)
12157{
12158 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12159 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12160 struct sk_buff *msg;
12161 void *hdr;
7f6cf311 12162
4ee3e063
BL		 12163 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12164
58050fce 12165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12166
7f6cf311
JB		 12167 if (!msg)
12168 return;
12169
12170 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12171 if (!hdr) {
12172 nlmsg_free(msg);
12173 return;
12174 }
12175
9360ffd1
DM		 12176 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12177 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12178 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12179 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12180 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12181 goto nla_put_failure;
7f6cf311 12182
9c90a9f6 12183 genlmsg_end(msg, hdr);
7f6cf311 12184
68eb5503 12185 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12186 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12187 return;
12188
12189 nla_put_failure:
12190 genlmsg_cancel(msg, hdr);
12191 nlmsg_free(msg);
12192}
12193EXPORT_SYMBOL(cfg80211_probe_status);
12194
5e760230
JB		 12195void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12196 const u8 *frame, size_t len,
37c73b5f 12197 int freq, int sig_dbm)
5e760230 12198{
f26cbf40 12199 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12200 struct sk_buff *msg;
12201 void *hdr;
37c73b5f 12202 struct cfg80211_beacon_registration *reg;
5e760230 12203
4ee3e063
BL		 12204 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12205
37c73b5f
BG		 12206 spin_lock_bh(&rdev->beacon_registrations_lock);
12207 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12208 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12209 if (!msg) {
12210 spin_unlock_bh(&rdev->beacon_registrations_lock);
12211 return;
12212 }
5e760230 12213
37c73b5f
BG		 12214 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12215 if (!hdr)
12216 goto nla_put_failure;
5e760230 12217
37c73b5f
BG		 12218 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12219 (freq &&
12220 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12221 (sig_dbm &&
12222 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12223 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12224 goto nla_put_failure;
5e760230 12225
37c73b5f 12226 genlmsg_end(msg, hdr);
5e760230 12227
37c73b5f
BG		 12228 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12229 }
12230 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12231 return;
12232
12233 nla_put_failure:
37c73b5f
BG		 12234 spin_unlock_bh(&rdev->beacon_registrations_lock);
12235 if (hdr)
12236 genlmsg_cancel(msg, hdr);
5e760230
JB		 12237 nlmsg_free(msg);
12238}
12239EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12240
cd8f7cb4 12241#ifdef CONFIG_PM
8cd4d456
LC		 12242static int cfg80211_net_detect_results(struct sk_buff *msg,
12243 struct cfg80211_wowlan_wakeup *wakeup)
12244{
12245 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12246 struct nlattr *nl_results, *nl_match, *nl_freqs;
12247 int i, j;
12248
12249 nl_results = nla_nest_start(
12250 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12251 if (!nl_results)
12252 return -EMSGSIZE;
12253
12254 for (i = 0; i < nd->n_matches; i++) {
12255 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12256
12257 nl_match = nla_nest_start(msg, i);
12258 if (!nl_match)
12259 break;
12260
12261 /* The SSID attribute is optional in nl80211, but for
12262 * simplicity reasons it's always present in the
12263 * cfg80211 structure. If a driver can't pass the
12264 * SSID, that needs to be changed. A zero length SSID
12265 * is still a valid SSID (wildcard), so it cannot be
12266 * used for this purpose.
12267 */
12268 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12269 match->ssid.ssid)) {
12270 nla_nest_cancel(msg, nl_match);
12271 goto out;
12272 }
12273
12274 if (match->n_channels) {
12275 nl_freqs = nla_nest_start(
12276 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12277 if (!nl_freqs) {
12278 nla_nest_cancel(msg, nl_match);
12279 goto out;
12280 }
12281
12282 for (j = 0; j < match->n_channels; j++) {
12283 if (nla_put_u32(msg,
12284 NL80211_ATTR_WIPHY_FREQ,
12285 match->channels[j])) {
12286 nla_nest_cancel(msg, nl_freqs);
12287 nla_nest_cancel(msg, nl_match);
12288 goto out;
12289 }
12290 }
12291
12292 nla_nest_end(msg, nl_freqs);
12293 }
12294
12295 nla_nest_end(msg, nl_match);
12296 }
12297
12298out:
12299 nla_nest_end(msg, nl_results);
12300 return 0;
12301}
12302
cd8f7cb4
JB		 12303void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12304 struct cfg80211_wowlan_wakeup *wakeup,
12305 gfp_t gfp)
12306{
f26cbf40 12307 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12308 struct sk_buff *msg;
12309 void *hdr;
9c90a9f6 12310 int size = 200;
cd8f7cb4
JB		 12311
12312 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12313
12314 if (wakeup)
12315 size += wakeup->packet_present_len;
12316
12317 msg = nlmsg_new(size, gfp);
12318 if (!msg)
12319 return;
12320
12321 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12322 if (!hdr)
12323 goto free_msg;
12324
12325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12326 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12327 goto free_msg;
12328
12329 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12330 wdev->netdev->ifindex))
12331 goto free_msg;
12332
12333 if (wakeup) {
12334 struct nlattr *reasons;
12335
12336 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12337 if (!reasons)
12338 goto free_msg;
cd8f7cb4
JB		 12339
12340 if (wakeup->disconnect &&
12341 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12342 goto free_msg;
12343 if (wakeup->magic_pkt &&
12344 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12345 goto free_msg;
12346 if (wakeup->gtk_rekey_failure &&
12347 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12348 goto free_msg;
12349 if (wakeup->eap_identity_req &&
12350 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12351 goto free_msg;
12352 if (wakeup->four_way_handshake &&
12353 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12354 goto free_msg;
12355 if (wakeup->rfkill_release &&
12356 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12357 goto free_msg;
12358
12359 if (wakeup->pattern_idx >= 0 &&
12360 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12361 wakeup->pattern_idx))
12362 goto free_msg;
12363
ae917c9f
JB		 12364 if (wakeup->tcp_match &&
12365 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12366 goto free_msg;
2a0e047e 12367
ae917c9f
JB		 12368 if (wakeup->tcp_connlost &&
12369 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12370 goto free_msg;
2a0e047e 12371
ae917c9f
JB		 12372 if (wakeup->tcp_nomoretokens &&
12373 nla_put_flag(msg,
12374 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12375 goto free_msg;
2a0e047e 12376
cd8f7cb4
JB		 12377 if (wakeup->packet) {
12378 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12379 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12380
12381 if (!wakeup->packet_80211) {
12382 pkt_attr =
12383 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12384 len_attr =
12385 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12386 }
12387
12388 if (wakeup->packet_len &&
12389 nla_put_u32(msg, len_attr, wakeup->packet_len))
12390 goto free_msg;
12391
12392 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12393 wakeup->packet))
12394 goto free_msg;
12395 }
12396
8cd4d456
LC		 12397 if (wakeup->net_detect &&
12398 cfg80211_net_detect_results(msg, wakeup))
12399 goto free_msg;
12400
cd8f7cb4
JB		 12401 nla_nest_end(msg, reasons);
12402 }
12403
9c90a9f6 12404 genlmsg_end(msg, hdr);
cd8f7cb4 12405
68eb5503 12406 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12407 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12408 return;
12409
12410 free_msg:
12411 nlmsg_free(msg);
12412}
12413EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12414#endif
12415
3475b094
JM		 12416void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12417 enum nl80211_tdls_operation oper,
12418 u16 reason_code, gfp_t gfp)
12419{
12420 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12421 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12422 struct sk_buff *msg;
12423 void *hdr;
3475b094
JM		 12424
12425 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12426 reason_code);
12427
12428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12429 if (!msg)
12430 return;
12431
12432 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12433 if (!hdr) {
12434 nlmsg_free(msg);
12435 return;
12436 }
12437
12438 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12439 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12440 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12441 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12442 (reason_code > 0 &&
12443 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12444 goto nla_put_failure;
12445
9c90a9f6 12446 genlmsg_end(msg, hdr);
3475b094 12447
68eb5503 12448 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12449 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12450 return;
12451
12452 nla_put_failure:
12453 genlmsg_cancel(msg, hdr);
12454 nlmsg_free(msg);
12455}
12456EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12457
026331c4
JM		 12458static int nl80211_netlink_notify(struct notifier_block * nb,
12459 unsigned long state,
12460 void *_notify)
12461{
12462 struct netlink_notify *notify = _notify;
12463 struct cfg80211_registered_device *rdev;
12464 struct wireless_dev *wdev;
37c73b5f 12465 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12466
12467 if (state != NETLINK_URELEASE)
12468 return NOTIFY_DONE;
12469
12470 rcu_read_lock();
12471
5e760230 12472 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 12473 bool schedule_destroy_work = false;
12474
12475 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12476 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12477
78f22b6a
JB		 12478 if (wdev->owner_nlportid == notify->portid)
12479 schedule_destroy_work = true;
12480 }
12481
37c73b5f
BG		 12482 spin_lock_bh(&rdev->beacon_registrations_lock);
12483 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12484 list) {
12485 if (reg->nlportid == notify->portid) {
12486 list_del(&reg->list);
12487 kfree(reg);
12488 break;
12489 }
12490 }
12491 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12492
12493 if (schedule_destroy_work) {
12494 struct cfg80211_iface_destroy *destroy;
12495
12496 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12497 if (destroy) {
12498 destroy->nlportid = notify->portid;
12499 spin_lock(&rdev->destroy_list_lock);
12500 list_add(&destroy->list, &rdev->destroy_list);
12501 spin_unlock(&rdev->destroy_list_lock);
12502 schedule_work(&rdev->destroy_work);
12503 }
12504 }
5e760230 12505 }
026331c4
JM		 12506
12507 rcu_read_unlock();
12508
6784c7db 12509 return NOTIFY_OK;
026331c4
JM		 12510}
12511
12512static struct notifier_block nl80211_netlink_notifier = {
12513 .notifier_call = nl80211_netlink_notify,
12514};
12515
355199e0
JM		 12516void cfg80211_ft_event(struct net_device *netdev,
12517 struct cfg80211_ft_event_params *ft_event)
12518{
12519 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12520 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12521 struct sk_buff *msg;
12522 void *hdr;
355199e0
JM		 12523
12524 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12525
12526 if (!ft_event->target_ap)
12527 return;
12528
12529 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12530 if (!msg)
12531 return;
12532
12533 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12534 if (!hdr)
12535 goto out;
355199e0 12536
ae917c9f
JB		 12537 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12538 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12539 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12540 goto out;
355199e0 12541
ae917c9f
JB		 12542 if (ft_event->ies &&
12543 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12544 goto out;
12545 if (ft_event->ric_ies &&
12546 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12547 ft_event->ric_ies))
12548 goto out;
355199e0 12549
9c90a9f6 12550 genlmsg_end(msg, hdr);
355199e0 12551
68eb5503 12552 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12553 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12554 return;
12555 out:
12556 nlmsg_free(msg);
355199e0
JM		 12557}
12558EXPORT_SYMBOL(cfg80211_ft_event);
12559
5de17984
AS		 12560void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12561{
12562 struct cfg80211_registered_device *rdev;
12563 struct sk_buff *msg;
12564 void *hdr;
12565 u32 nlportid;
12566
f26cbf40 12567 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12568 if (!rdev->crit_proto_nlportid)
12569 return;
12570
12571 nlportid = rdev->crit_proto_nlportid;
12572 rdev->crit_proto_nlportid = 0;
12573
12574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12575 if (!msg)
12576 return;
12577
12578 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12579 if (!hdr)
12580 goto nla_put_failure;
12581
12582 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12583 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12584 goto nla_put_failure;
12585
12586 genlmsg_end(msg, hdr);
12587
12588 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12589 return;
12590
12591 nla_put_failure:
12592 if (hdr)
12593 genlmsg_cancel(msg, hdr);
12594 nlmsg_free(msg);
12595
12596}
12597EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12598
348baf0e
JB		 12599void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12600{
12601 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12602 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12603 struct sk_buff *msg;
12604 void *hdr;
12605
12606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12607 if (!msg)
12608 return;
12609
12610 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12611 if (!hdr)
12612 goto out;
12613
12614 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12615 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12616 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12617 goto out;
12618
12619 genlmsg_end(msg, hdr);
12620
12621 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12622 NL80211_MCGRP_MLME, GFP_KERNEL);
12623 return;
12624 out:
12625 nlmsg_free(msg);
12626}
12627
55682965
JB		 12628/* initialisation/exit functions */
12629
12630int nl80211_init(void)
12631{
0d63cbb5 12632 int err;
55682965 12633
2a94fe48
JB		 12634 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12635 nl80211_mcgrps);
55682965
JB		 12636 if (err)
12637 return err;
12638
026331c4
JM		 12639 err = netlink_register_notifier(&nl80211_netlink_notifier);
12640 if (err)
12641 goto err_out;
12642
55682965
JB		 12643 return 0;
12644 err_out:
12645 genl_unregister_family(&nl80211_fam);
12646 return err;
12647}
12648
12649void nl80211_exit(void)
12650{
026331c4 12651 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12652 genl_unregister_family(&nl80211_fam);
12653}
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