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cfg80211: allow wiphy specific regdomain management
[mirror_ubuntu-focal-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
ad30ca2c
AN		 5330static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5331 struct sk_buff *msg)
f130347c 5332{
f130347c
LR		 5333 struct nlattr *nl_reg_rules;
5334 unsigned int i;
f130347c 5335
458f4f9e
JB		 5336 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5337 (regdom->dfs_region &&
5338 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5339 goto nla_put_failure;
458f4f9e 5340
f130347c
LR		 5341 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5342 if (!nl_reg_rules)
ad30ca2c 5343 goto nla_put_failure;
f130347c 5344
458f4f9e 5345 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5346 struct nlattr *nl_reg_rule;
5347 const struct ieee80211_reg_rule *reg_rule;
5348 const struct ieee80211_freq_range *freq_range;
5349 const struct ieee80211_power_rule *power_rule;
97524820 5350 unsigned int max_bandwidth_khz;
f130347c 5351
458f4f9e 5352 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5353 freq_range = &reg_rule->freq_range;
5354 power_rule = &reg_rule->power_rule;
5355
5356 nl_reg_rule = nla_nest_start(msg, i);
5357 if (!nl_reg_rule)
ad30ca2c 5358 goto nla_put_failure;
f130347c 5359
97524820
JD		 5360 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5361 if (!max_bandwidth_khz)
5362 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5363 reg_rule);
5364
9360ffd1
DM		 5365 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5366 reg_rule->flags) ||
5367 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5368 freq_range->start_freq_khz) ||
5369 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5370 freq_range->end_freq_khz) ||
5371 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5372 max_bandwidth_khz) ||
9360ffd1
DM		 5373 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5374 power_rule->max_antenna_gain) ||
5375 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5376 power_rule->max_eirp) ||
5377 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5378 reg_rule->dfs_cac_ms))
ad30ca2c 5379 goto nla_put_failure;
f130347c
LR		 5380
5381 nla_nest_end(msg, nl_reg_rule);
5382 }
5383
5384 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5385 return 0;
5386
5387nla_put_failure:
5388 return -EMSGSIZE;
5389}
5390
5391static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5392{
5393 const struct ieee80211_regdomain *regdom = NULL;
5394 struct cfg80211_registered_device *rdev;
5395 struct wiphy *wiphy = NULL;
5396 struct sk_buff *msg;
5397 void *hdr;
5398
5399 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5400 if (!msg)
5401 return -ENOBUFS;
5402
5403 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5404 NL80211_CMD_GET_REG);
5405 if (!hdr)
5406 goto put_failure;
5407
5408 if (info->attrs[NL80211_ATTR_WIPHY]) {
5409 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5410 if (IS_ERR(rdev)) {
5411 nlmsg_free(msg);
5412 return PTR_ERR(rdev);
5413 }
5414
5415 wiphy = &rdev->wiphy;
5416 regdom = get_wiphy_regdom(wiphy);
5417
5418 if (regdom &&
5419 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5420 goto nla_put_failure;
5421 }
5422
5423 if (!wiphy && reg_last_request_cell_base() &&
5424 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5425 NL80211_USER_REG_HINT_CELL_BASE))
5426 goto nla_put_failure;
5427
5428 rcu_read_lock();
5429
5430 if (!regdom)
5431 regdom = rcu_dereference(cfg80211_regdomain);
5432
5433 if (nl80211_put_regdom(regdom, msg))
5434 goto nla_put_failure_rcu;
5435
5436 rcu_read_unlock();
f130347c
LR		 5437
5438 genlmsg_end(msg, hdr);
5fe231e8 5439 return genlmsg_reply(msg, info);
f130347c 5440
458f4f9e
JB		 5441nla_put_failure_rcu:
5442 rcu_read_unlock();
f130347c
LR		 5443nla_put_failure:
5444 genlmsg_cancel(msg, hdr);
efe1cf0c 5445put_failure:
d080e275 5446 nlmsg_free(msg);
5fe231e8 5447 return -EMSGSIZE;
f130347c
LR		 5448}
5449
ad30ca2c
AN		 5450static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5451 u32 seq, int flags, struct wiphy *wiphy,
5452 const struct ieee80211_regdomain *regdom)
5453{
5454 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5455 NL80211_CMD_GET_REG);
5456
5457 if (!hdr)
5458 return -1;
5459
5460 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5461
5462 if (nl80211_put_regdom(regdom, msg))
5463 goto nla_put_failure;
5464
5465 if (!wiphy && reg_last_request_cell_base() &&
5466 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5467 NL80211_USER_REG_HINT_CELL_BASE))
5468 goto nla_put_failure;
5469
5470 if (wiphy &&
5471 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5472 goto nla_put_failure;
5473
5474 return genlmsg_end(msg, hdr);
5475
5476nla_put_failure:
5477 genlmsg_cancel(msg, hdr);
5478 return -EMSGSIZE;
5479}
5480
5481static int nl80211_get_reg_dump(struct sk_buff *skb,
5482 struct netlink_callback *cb)
5483{
5484 const struct ieee80211_regdomain *regdom = NULL;
5485 struct cfg80211_registered_device *rdev;
5486 int err, reg_idx, start = cb->args[2];
5487
5488 rtnl_lock();
5489
5490 if (cfg80211_regdomain && start == 0) {
5491 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5492 NLM_F_MULTI, NULL,
5493 rtnl_dereference(cfg80211_regdomain));
5494 if (err < 0)
5495 goto out_err;
5496 }
5497
5498 /* the global regdom is idx 0 */
5499 reg_idx = 1;
5500 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5501 regdom = get_wiphy_regdom(&rdev->wiphy);
5502 if (!regdom)
5503 continue;
5504
5505 if (++reg_idx <= start)
5506 continue;
5507
5508 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5509 NLM_F_MULTI, &rdev->wiphy, regdom);
5510 if (err < 0) {
5511 reg_idx--;
5512 break;
5513 }
5514 }
5515
5516 cb->args[2] = reg_idx;
5517 err = skb->len;
5518out_err:
5519 rtnl_unlock();
5520 return err;
5521}
5522
b2e1b302
LR		 5523static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5524{
5525 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5526 struct nlattr *nl_reg_rule;
ea372c54
JB		 5527 char *alpha2;
5528 int rem_reg_rules, r;
b2e1b302 5529 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5530 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5531 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5532
5533 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5534 return -EINVAL;
5535
5536 if (!info->attrs[NL80211_ATTR_REG_RULES])
5537 return -EINVAL;
5538
5539 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5540
8b60b078
LR		 5541 if (info->attrs[NL80211_ATTR_DFS_REGION])
5542 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5543
b2e1b302 5544 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5545 rem_reg_rules) {
b2e1b302
LR		 5546 num_rules++;
5547 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5548 return -EINVAL;
b2e1b302
LR		 5549 }
5550
e438768f
LR		 5551 if (!reg_is_valid_request(alpha2))
5552 return -EINVAL;
5553
b2e1b302 5554 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5555 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5556
5557 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5558 if (!rd)
5559 return -ENOMEM;
b2e1b302
LR		 5560
5561 rd->n_reg_rules = num_rules;
5562 rd->alpha2[0] = alpha2[0];
5563 rd->alpha2[1] = alpha2[1];
5564
8b60b078
LR		 5565 /*
5566 * Disable DFS master mode if the DFS region was
5567 * not supported or known on this kernel.
5568 */
5569 if (reg_supported_dfs_region(dfs_region))
5570 rd->dfs_region = dfs_region;
5571
b2e1b302 5572 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5573 rem_reg_rules) {
ae811e21
JB		 5574 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5575 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5576 reg_rule_policy);
5577 if (r)
5578 goto bad_reg;
b2e1b302
LR		 5579 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5580 if (r)
5581 goto bad_reg;
5582
5583 rule_idx++;
5584
d0e18f83
LR		 5585 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5586 r = -EINVAL;
b2e1b302 5587 goto bad_reg;
d0e18f83 5588 }
b2e1b302
LR		 5589 }
5590
b2e1b302 5591 r = set_regdom(rd);
6913b49a 5592 /* set_regdom took ownership */
1a919318 5593 rd = NULL;
b2e1b302 5594
d2372b31 5595 bad_reg:
b2e1b302 5596 kfree(rd);
d0e18f83 5597 return r;
b2e1b302
LR		 5598}
5599
83f5e2cf
JB		 5600static int validate_scan_freqs(struct nlattr *freqs)
5601{
5602 struct nlattr *attr1, *attr2;
5603 int n_channels = 0, tmp1, tmp2;
5604
5605 nla_for_each_nested(attr1, freqs, tmp1) {
5606 n_channels++;
5607 /*
5608 * Some hardware has a limited channel list for
5609 * scanning, and it is pretty much nonsensical
5610 * to scan for a channel twice, so disallow that
5611 * and don't require drivers to check that the
5612 * channel list they get isn't longer than what
5613 * they can scan, as long as they can scan all
5614 * the channels they registered at once.
5615 */
5616 nla_for_each_nested(attr2, freqs, tmp2)
5617 if (attr1 != attr2 &&
5618 nla_get_u32(attr1) == nla_get_u32(attr2))
5619 return 0;
5620 }
5621
5622 return n_channels;
5623}
5624
ad2b26ab
JB		 5625static int nl80211_parse_random_mac(struct nlattr **attrs,
5626 u8 *mac_addr, u8 *mac_addr_mask)
5627{
5628 int i;
5629
5630 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5631 memset(mac_addr, 0, ETH_ALEN);
5632 memset(mac_addr_mask, 0, ETH_ALEN);
5633 mac_addr[0] = 0x2;
5634 mac_addr_mask[0] = 0x3;
5635
5636 return 0;
5637 }
5638
5639 /* need both or none */
5640 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5641 return -EINVAL;
5642
5643 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5644 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5645
5646 /* don't allow or configure an mcast address */
5647 if (!is_multicast_ether_addr(mac_addr_mask) ||
5648 is_multicast_ether_addr(mac_addr))
5649 return -EINVAL;
5650
5651 /*
5652 * allow users to pass a MAC address that has bits set outside
5653 * of the mask, but don't bother drivers with having to deal
5654 * with such bits
5655 */
5656 for (i = 0; i < ETH_ALEN; i++)
5657 mac_addr[i] &= mac_addr_mask[i];
5658
5659 return 0;
5660}
5661
2a519311
JB		 5662static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5663{
4c476991 5664 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5665 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5666 struct cfg80211_scan_request *request;
2a519311
JB		 5667 struct nlattr *attr;
5668 struct wiphy *wiphy;
83f5e2cf 5669 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5670 size_t ie_len;
2a519311 5671
f4a11bb0
JB		 5672 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5673 return -EINVAL;
5674
79c97e97 5675 wiphy = &rdev->wiphy;
2a519311 5676
4c476991
JB		 5677 if (!rdev->ops->scan)
5678 return -EOPNOTSUPP;
2a519311 5679
f9d15d16 5680 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5681 err = -EBUSY;
5682 goto unlock;
5683 }
2a519311
JB		 5684
5685 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5686 n_channels = validate_scan_freqs(
5687 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5688 if (!n_channels) {
5689 err = -EINVAL;
5690 goto unlock;
5691 }
2a519311 5692 } else {
bdfbec2d 5693 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5694 }
5695
5696 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5697 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5698 n_ssids++;
5699
f9f47529
JB		 5700 if (n_ssids > wiphy->max_scan_ssids) {
5701 err = -EINVAL;
5702 goto unlock;
5703 }
2a519311 5704
70692ad2
JM		 5705 if (info->attrs[NL80211_ATTR_IE])
5706 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5707 else
5708 ie_len = 0;
5709
f9f47529
JB		 5710 if (ie_len > wiphy->max_scan_ie_len) {
5711 err = -EINVAL;
5712 goto unlock;
5713 }
18a83659 5714
2a519311 5715 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5716 + sizeof(*request->ssids) * n_ssids
5717 + sizeof(*request->channels) * n_channels
70692ad2 5718 + ie_len, GFP_KERNEL);
f9f47529
JB		 5719 if (!request) {
5720 err = -ENOMEM;
5721 goto unlock;
5722 }
2a519311 5723
2a519311 5724 if (n_ssids)
5ba63533 5725 request->ssids = (void *)&request->channels[n_channels];
2a519311 5726 request->n_ssids = n_ssids;
70692ad2
JM		 5727 if (ie_len) {
5728 if (request->ssids)
5729 request->ie = (void *)(request->ssids + n_ssids);
5730 else
5731 request->ie = (void *)(request->channels + n_channels);
5732 }
2a519311 5733
584991dc 5734 i = 0;
2a519311
JB		 5735 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5736 /* user specified, bail out if channel not found */
2a519311 5737 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5738 struct ieee80211_channel *chan;
5739
5740 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5741
5742 if (!chan) {
2a519311
JB		 5743 err = -EINVAL;
5744 goto out_free;
5745 }
584991dc
JB		 5746
5747 /* ignore disabled channels */
5748 if (chan->flags & IEEE80211_CHAN_DISABLED)
5749 continue;
5750
5751 request->channels[i] = chan;
2a519311
JB		 5752 i++;
5753 }
5754 } else {
34850ab2
JB		 5755 enum ieee80211_band band;
5756
2a519311 5757 /* all channels */
2a519311
JB		 5758 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5759 int j;
5760 if (!wiphy->bands[band])
5761 continue;
5762 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5763 struct ieee80211_channel *chan;
5764
5765 chan = &wiphy->bands[band]->channels[j];
5766
5767 if (chan->flags & IEEE80211_CHAN_DISABLED)
5768 continue;
5769
5770 request->channels[i] = chan;
2a519311
JB		 5771 i++;
5772 }
5773 }
5774 }
5775
584991dc
JB		 5776 if (!i) {
5777 err = -EINVAL;
5778 goto out_free;
5779 }
5780
5781 request->n_channels = i;
5782
2a519311
JB		 5783 i = 0;
5784 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5785 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5786 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5787 err = -EINVAL;
5788 goto out_free;
5789 }
57a27e1d 5790 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5791 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5792 i++;
5793 }
5794 }
5795
70692ad2
JM		 5796 if (info->attrs[NL80211_ATTR_IE]) {
5797 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5798 memcpy((void *)request->ie,
5799 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5800 request->ie_len);
5801 }
5802
34850ab2 5803 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5804 if (wiphy->bands[i])
5805 request->rates[i] =
5806 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5807
5808 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5809 nla_for_each_nested(attr,
5810 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5811 tmp) {
5812 enum ieee80211_band band = nla_type(attr);
5813
84404623 5814 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5815 err = -EINVAL;
5816 goto out_free;
5817 }
1b09cd82
FF		 5818
5819 if (!wiphy->bands[band])
5820 continue;
5821
34850ab2
JB		 5822 err = ieee80211_get_ratemask(wiphy->bands[band],
5823 nla_data(attr),
5824 nla_len(attr),
5825 &request->rates[band]);
5826 if (err)
5827 goto out_free;
5828 }
5829 }
5830
46856bbf 5831 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5832 request->flags = nla_get_u32(
5833 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5834 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5835 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5836 err = -EOPNOTSUPP;
5837 goto out_free;
5838 }
ad2b26ab
JB		 5839
5840 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5841 if (!(wiphy->features &
5842 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5843 err = -EOPNOTSUPP;
5844 goto out_free;
5845 }
5846
5847 if (wdev->current_bss) {
5848 err = -EOPNOTSUPP;
5849 goto out_free;
5850 }
5851
5852 err = nl80211_parse_random_mac(info->attrs,
5853 request->mac_addr,
5854 request->mac_addr_mask);
5855 if (err)
5856 goto out_free;
5857 }
46856bbf 5858 }
ed473771 5859
e9f935e3
RM		 5860 request->no_cck =
5861 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5862
fd014284 5863 request->wdev = wdev;
79c97e97 5864 request->wiphy = &rdev->wiphy;
15d6030b 5865 request->scan_start = jiffies;
2a519311 5866
79c97e97 5867 rdev->scan_req = request;
e35e4d28 5868 err = rdev_scan(rdev, request);
2a519311 5869
463d0183 5870 if (!err) {
fd014284
JB		 5871 nl80211_send_scan_start(rdev, wdev);
5872 if (wdev->netdev)
5873 dev_hold(wdev->netdev);
4c476991 5874 } else {
2a519311 5875 out_free:
79c97e97 5876 rdev->scan_req = NULL;
2a519311
JB		 5877 kfree(request);
5878 }
3b85875a 5879
f9f47529 5880 unlock:
2a519311
JB		 5881 return err;
5882}
5883
256da02d 5884static struct cfg80211_sched_scan_request *
ad2b26ab 5885nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5886 struct nlattr **attrs)
807f8a8c
LC		 5887{
5888 struct cfg80211_sched_scan_request *request;
807f8a8c 5889 struct nlattr *attr;
a1f1c21c 5890 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5891 u32 interval;
807f8a8c
LC		 5892 enum ieee80211_band band;
5893 size_t ie_len;
a1f1c21c 5894 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5895 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5896
256da02d
LC		 5897 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5898 return ERR_PTR(-EINVAL);
807f8a8c 5899
256da02d
LC		 5900 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5901 return ERR_PTR(-EINVAL);
bbe6ad6d 5902
256da02d 5903 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5904 if (interval == 0)
256da02d 5905 return ERR_PTR(-EINVAL);
807f8a8c 5906
256da02d 5907 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5908 n_channels = validate_scan_freqs(
256da02d 5909 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5910 if (!n_channels)
256da02d 5911 return ERR_PTR(-EINVAL);
807f8a8c 5912 } else {
bdfbec2d 5913 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5914 }
5915
256da02d
LC		 5916 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5917 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5918 tmp)
5919 n_ssids++;
5920
93b6aa69 5921 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5922 return ERR_PTR(-EINVAL);
807f8a8c 5923
ea73cbce
JB		 5924 /*
5925 * First, count the number of 'real' matchsets. Due to an issue with
5926 * the old implementation, matchsets containing only the RSSI attribute
5927 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5928 * RSSI for all matchsets, rather than their own matchset for reporting
5929 * all APs with a strong RSSI. This is needed to be compatible with
5930 * older userspace that treated a matchset with only the RSSI as the
5931 * global RSSI for all other matchsets - if there are other matchsets.
5932 */
256da02d 5933 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5934 nla_for_each_nested(attr,
256da02d 5935 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5936 tmp) {
5937 struct nlattr *rssi;
5938
5939 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5940 nla_data(attr), nla_len(attr),
5941 nl80211_match_policy);
5942 if (err)
256da02d 5943 return ERR_PTR(err);
ea73cbce
JB		 5944 /* add other standalone attributes here */
5945 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5946 n_match_sets++;
5947 continue;
5948 }
5949 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5950 if (rssi)
5951 default_match_rssi = nla_get_s32(rssi);
5952 }
5953 }
5954
5955 /* However, if there's no other matchset, add the RSSI one */
5956 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5957 n_match_sets = 1;
a1f1c21c
LC		 5958
5959 if (n_match_sets > wiphy->max_match_sets)
256da02d 5960 return ERR_PTR(-EINVAL);
a1f1c21c 5961
256da02d
LC		 5962 if (attrs[NL80211_ATTR_IE])
5963 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 5964 else
5965 ie_len = 0;
5966
5a865bad 5967 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 5968 return ERR_PTR(-EINVAL);
c10841ca 5969
807f8a8c 5970 request = kzalloc(sizeof(*request)
a2cd43c5 5971 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5972 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5973 + sizeof(*request->channels) * n_channels
807f8a8c 5974 + ie_len, GFP_KERNEL);
256da02d
LC		 5975 if (!request)
5976 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 5977
5978 if (n_ssids)
5979 request->ssids = (void *)&request->channels[n_channels];
5980 request->n_ssids = n_ssids;
5981 if (ie_len) {
5982 if (request->ssids)
5983 request->ie = (void *)(request->ssids + n_ssids);
5984 else
5985 request->ie = (void *)(request->channels + n_channels);
5986 }
5987
a1f1c21c
LC		 5988 if (n_match_sets) {
5989 if (request->ie)
5990 request->match_sets = (void *)(request->ie + ie_len);
5991 else if (request->ssids)
5992 request->match_sets =
5993 (void *)(request->ssids + n_ssids);
5994 else
5995 request->match_sets =
5996 (void *)(request->channels + n_channels);
5997 }
5998 request->n_match_sets = n_match_sets;
5999
807f8a8c 6000 i = 0;
256da02d 6001 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6002 /* user specified, bail out if channel not found */
6003 nla_for_each_nested(attr,
256da02d 6004 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6005 tmp) {
6006 struct ieee80211_channel *chan;
6007
6008 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6009
6010 if (!chan) {
6011 err = -EINVAL;
6012 goto out_free;
6013 }
6014
6015 /* ignore disabled channels */
6016 if (chan->flags & IEEE80211_CHAN_DISABLED)
6017 continue;
6018
6019 request->channels[i] = chan;
6020 i++;
6021 }
6022 } else {
6023 /* all channels */
6024 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6025 int j;
6026 if (!wiphy->bands[band])
6027 continue;
6028 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6029 struct ieee80211_channel *chan;
6030
6031 chan = &wiphy->bands[band]->channels[j];
6032
6033 if (chan->flags & IEEE80211_CHAN_DISABLED)
6034 continue;
6035
6036 request->channels[i] = chan;
6037 i++;
6038 }
6039 }
6040 }
6041
6042 if (!i) {
6043 err = -EINVAL;
6044 goto out_free;
6045 }
6046
6047 request->n_channels = i;
6048
6049 i = 0;
256da02d
LC		 6050 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
6051 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6052 tmp) {
57a27e1d 6053 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6054 err = -EINVAL;
6055 goto out_free;
6056 }
57a27e1d 6057 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6058 memcpy(request->ssids[i].ssid, nla_data(attr),
6059 nla_len(attr));
807f8a8c
LC		 6060 i++;
6061 }
6062 }
6063
a1f1c21c 6064 i = 0;
256da02d 6065 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6066 nla_for_each_nested(attr,
256da02d 6067 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6068 tmp) {
88e920b4 6069 struct nlattr *ssid, *rssi;
a1f1c21c 6070
ae811e21
JB		 6071 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6072 nla_data(attr), nla_len(attr),
6073 nl80211_match_policy);
6074 if (err)
6075 goto out_free;
4a4ab0d7 6076 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6077 if (ssid) {
ea73cbce
JB		 6078 if (WARN_ON(i >= n_match_sets)) {
6079 /* this indicates a programming error,
6080 * the loop above should have verified
6081 * things properly
6082 */
6083 err = -EINVAL;
6084 goto out_free;
6085 }
6086
a1f1c21c
LC		 6087 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6088 err = -EINVAL;
6089 goto out_free;
6090 }
6091 memcpy(request->match_sets[i].ssid.ssid,
6092 nla_data(ssid), nla_len(ssid));
6093 request->match_sets[i].ssid.ssid_len =
6094 nla_len(ssid);
ea73cbce
JB		 6095 /* special attribute - old implemenation w/a */
6096 request->match_sets[i].rssi_thold =
6097 default_match_rssi;
6098 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6099 if (rssi)
6100 request->match_sets[i].rssi_thold =
6101 nla_get_s32(rssi);
a1f1c21c
LC		 6102 }
6103 i++;
6104 }
ea73cbce
JB		 6105
6106 /* there was no other matchset, so the RSSI one is alone */
6107 if (i == 0)
6108 request->match_sets[0].rssi_thold = default_match_rssi;
6109
6110 request->min_rssi_thold = INT_MAX;
6111 for (i = 0; i < n_match_sets; i++)
6112 request->min_rssi_thold =
6113 min(request->match_sets[i].rssi_thold,
6114 request->min_rssi_thold);
6115 } else {
6116 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6117 }
6118
9900e484
JB		 6119 if (ie_len) {
6120 request->ie_len = ie_len;
807f8a8c 6121 memcpy((void *)request->ie,
256da02d 6122 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6123 request->ie_len);
6124 }
6125
256da02d 6126 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6127 request->flags = nla_get_u32(
256da02d 6128 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6129 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6130 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6131 err = -EOPNOTSUPP;
6132 goto out_free;
6133 }
ad2b26ab
JB		 6134
6135 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6136 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6137
6138 if (!wdev) /* must be net-detect */
6139 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6140
6141 if (!(wiphy->features & flg)) {
6142 err = -EOPNOTSUPP;
6143 goto out_free;
6144 }
6145
6146 if (wdev && wdev->current_bss) {
6147 err = -EOPNOTSUPP;
6148 goto out_free;
6149 }
6150
6151 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6152 request->mac_addr_mask);
6153 if (err)
6154 goto out_free;
6155 }
46856bbf 6156 }
ed473771 6157
bbe6ad6d 6158 request->interval = interval;
15d6030b 6159 request->scan_start = jiffies;
807f8a8c 6160
256da02d 6161 return request;
807f8a8c
LC		 6162
6163out_free:
6164 kfree(request);
256da02d
LC		 6165 return ERR_PTR(err);
6166}
6167
6168static int nl80211_start_sched_scan(struct sk_buff *skb,
6169 struct genl_info *info)
6170{
6171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6172 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6173 struct wireless_dev *wdev = dev->ieee80211_ptr;
256da02d
LC		 6174 int err;
6175
6176 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6177 !rdev->ops->sched_scan_start)
6178 return -EOPNOTSUPP;
6179
6180 if (rdev->sched_scan_req)
6181 return -EINPROGRESS;
6182
ad2b26ab 6183 rdev->sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
256da02d
LC		 6184 info->attrs);
6185 err = PTR_ERR_OR_ZERO(rdev->sched_scan_req);
6186 if (err)
6187 goto out_err;
6188
6189 err = rdev_sched_scan_start(rdev, dev, rdev->sched_scan_req);
6190 if (err)
6191 goto out_free;
6192
6193 rdev->sched_scan_req->dev = dev;
6194 rdev->sched_scan_req->wiphy = &rdev->wiphy;
6195
6196 nl80211_send_sched_scan(rdev, dev,
6197 NL80211_CMD_START_SCHED_SCAN);
6198 return 0;
6199
6200out_free:
6201 kfree(rdev->sched_scan_req);
6202out_err:
6203 rdev->sched_scan_req = NULL;
807f8a8c
LC		 6204 return err;
6205}
6206
6207static int nl80211_stop_sched_scan(struct sk_buff *skb,
6208 struct genl_info *info)
6209{
6210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6211
6212 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6213 !rdev->ops->sched_scan_stop)
6214 return -EOPNOTSUPP;
6215
5fe231e8 6216 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6217}
6218
04f39047
SW		 6219static int nl80211_start_radar_detection(struct sk_buff *skb,
6220 struct genl_info *info)
6221{
6222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6223 struct net_device *dev = info->user_ptr[1];
6224 struct wireless_dev *wdev = dev->ieee80211_ptr;
6225 struct cfg80211_chan_def chandef;
55f7435c 6226 enum nl80211_dfs_regions dfs_region;
31559f35 6227 unsigned int cac_time_ms;
04f39047
SW		 6228 int err;
6229
55f7435c
LR		 6230 dfs_region = reg_get_dfs_region(wdev->wiphy);
6231 if (dfs_region == NL80211_DFS_UNSET)
6232 return -EINVAL;
6233
04f39047
SW		 6234 err = nl80211_parse_chandef(rdev, info, &chandef);
6235 if (err)
6236 return err;
6237
ff311bc1
SW		 6238 if (netif_carrier_ok(dev))
6239 return -EBUSY;
6240
04f39047
SW		 6241 if (wdev->cac_started)
6242 return -EBUSY;
6243
2beb6dab 6244 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6245 wdev->iftype);
04f39047
SW		 6246 if (err < 0)
6247 return err;
6248
6249 if (err == 0)
6250 return -EINVAL;
6251
fe7c3a1f 6252 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6253 return -EINVAL;
6254
6255 if (!rdev->ops->start_radar_detection)
6256 return -EOPNOTSUPP;
6257
31559f35
JD		 6258 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6259 if (WARN_ON(!cac_time_ms))
6260 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6261
6262 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6263 cac_time_ms);
04f39047 6264 if (!err) {
9e0e2961 6265 wdev->chandef = chandef;
04f39047
SW		 6266 wdev->cac_started = true;
6267 wdev->cac_start_time = jiffies;
31559f35 6268 wdev->cac_time_ms = cac_time_ms;
04f39047 6269 }
04f39047
SW		 6270 return err;
6271}
6272
16ef1fe2
SW		 6273static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6274{
6275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6276 struct net_device *dev = info->user_ptr[1];
6277 struct wireless_dev *wdev = dev->ieee80211_ptr;
6278 struct cfg80211_csa_settings params;
6279 /* csa_attrs is defined static to avoid waste of stack size - this
6280 * function is called under RTNL lock, so this should not be a problem.
6281 */
6282 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6283 int err;
ee4bc9e7 6284 bool need_new_beacon = false;
9a774c78 6285 int len, i;
252e07ca 6286 u32 cs_count;
16ef1fe2
SW		 6287
6288 if (!rdev->ops->channel_switch ||
6289 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6290 return -EOPNOTSUPP;
6291
ee4bc9e7
SW		 6292 switch (dev->ieee80211_ptr->iftype) {
6293 case NL80211_IFTYPE_AP:
6294 case NL80211_IFTYPE_P2P_GO:
6295 need_new_beacon = true;
6296
6297 /* useless if AP is not running */
6298 if (!wdev->beacon_interval)
1ff79dfa 6299 return -ENOTCONN;
ee4bc9e7
SW		 6300 break;
6301 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6302 if (!wdev->ssid_len)
6303 return -ENOTCONN;
6304 break;
c6da674a 6305 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6306 if (!wdev->mesh_id_len)
6307 return -ENOTCONN;
ee4bc9e7
SW		 6308 break;
6309 default:
16ef1fe2 6310 return -EOPNOTSUPP;
ee4bc9e7 6311 }
16ef1fe2
SW		 6312
6313 memset(&params, 0, sizeof(params));
6314
6315 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6316 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6317 return -EINVAL;
6318
6319 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6320 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6321 return -EINVAL;
6322
252e07ca
LC		 6323 /* Even though the attribute is u32, the specification says
6324 * u8, so let's make sure we don't overflow.
6325 */
6326 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6327 if (cs_count > 255)
6328 return -EINVAL;
6329
6330 params.count = cs_count;
16ef1fe2 6331
ee4bc9e7
SW		 6332 if (!need_new_beacon)
6333 goto skip_beacons;
6334
16ef1fe2
SW		 6335 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6336 if (err)
6337 return err;
6338
6339 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6340 info->attrs[NL80211_ATTR_CSA_IES],
6341 nl80211_policy);
6342 if (err)
6343 return err;
6344
6345 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6346 if (err)
6347 return err;
6348
6349 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6350 return -EINVAL;
6351
9a774c78
AO		 6352 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6353 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6354 return -EINVAL;
6355
9a774c78
AO		 6356 params.n_counter_offsets_beacon = len / sizeof(u16);
6357 if (rdev->wiphy.max_num_csa_counters &&
6358 (params.n_counter_offsets_beacon >
6359 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6360 return -EINVAL;
6361
9a774c78
AO		 6362 params.counter_offsets_beacon =
6363 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6364
6365 /* sanity checks - counters should fit and be the same */
6366 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6367 u16 offset = params.counter_offsets_beacon[i];
6368
6369 if (offset >= params.beacon_csa.tail_len)
6370 return -EINVAL;
6371
6372 if (params.beacon_csa.tail[offset] != params.count)
6373 return -EINVAL;
6374 }
6375
16ef1fe2 6376 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6377 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6378 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6379 return -EINVAL;
6380
9a774c78
AO		 6381 params.n_counter_offsets_presp = len / sizeof(u16);
6382 if (rdev->wiphy.max_num_csa_counters &&
6383 (params.n_counter_offsets_beacon >
6384 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6385 return -EINVAL;
9a774c78
AO		 6386
6387 params.counter_offsets_presp =
6388 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6389
6390 /* sanity checks - counters should fit and be the same */
6391 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6392 u16 offset = params.counter_offsets_presp[i];
6393
6394 if (offset >= params.beacon_csa.probe_resp_len)
6395 return -EINVAL;
6396
6397 if (params.beacon_csa.probe_resp[offset] !=
6398 params.count)
6399 return -EINVAL;
6400 }
16ef1fe2
SW		 6401 }
6402
ee4bc9e7 6403skip_beacons:
16ef1fe2
SW		 6404 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6405 if (err)
6406 return err;
6407
174e0cd2
IP		 6408 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6409 wdev->iftype))
16ef1fe2
SW		 6410 return -EINVAL;
6411
2beb6dab
LC		 6412 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6413 &params.chandef,
6414 wdev->iftype);
6415 if (err < 0)
6416 return err;
6417
dcc6c2f5 6418 if (err > 0)
2beb6dab 6419 params.radar_required = true;
16ef1fe2 6420
16ef1fe2
SW		 6421 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6422 params.block_tx = true;
6423
c56589ed
SW		 6424 wdev_lock(wdev);
6425 err = rdev_channel_switch(rdev, dev, &params);
6426 wdev_unlock(wdev);
6427
6428 return err;
16ef1fe2
SW		 6429}
6430
9720bb3a
JB		 6431static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6432 u32 seq, int flags,
2a519311 6433 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6434 struct wireless_dev *wdev,
6435 struct cfg80211_internal_bss *intbss)
2a519311 6436{
48ab905d 6437 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6438 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6439 void *hdr;
6440 struct nlattr *bss;
48ab905d
JB		 6441
6442 ASSERT_WDEV_LOCK(wdev);
2a519311 6443
15e47304 6444 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6445 NL80211_CMD_NEW_SCAN_RESULTS);
6446 if (!hdr)
6447 return -1;
6448
9720bb3a
JB		 6449 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6450
97990a06
JB		 6451 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6452 goto nla_put_failure;
6453 if (wdev->netdev &&
9360ffd1
DM		 6454 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6455 goto nla_put_failure;
97990a06
JB		 6456 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6457 goto nla_put_failure;
2a519311
JB		 6458
6459 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6460 if (!bss)
6461 goto nla_put_failure;
9360ffd1 6462 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6463 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6464 goto nla_put_failure;
9caf0364
JB		 6465
6466 rcu_read_lock();
0e227084
JB		 6467 /* indicate whether we have probe response data or not */
6468 if (rcu_access_pointer(res->proberesp_ies) &&
6469 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6470 goto fail_unlock_rcu;
6471
6472 /* this pointer prefers to be pointed to probe response data
6473 * but is always valid
6474 */
9caf0364 6475 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6476 if (ies) {
6477 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6478 goto fail_unlock_rcu;
8cef2c9d
JB		 6479 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6480 ies->len, ies->data))
6481 goto fail_unlock_rcu;
9caf0364 6482 }
0e227084
JB		 6483
6484 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6485 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6486 if (ies && ies->from_beacon) {
6487 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6488 goto fail_unlock_rcu;
6489 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6490 ies->len, ies->data))
6491 goto fail_unlock_rcu;
9caf0364
JB		 6492 }
6493 rcu_read_unlock();
6494
9360ffd1
DM		 6495 if (res->beacon_interval &&
6496 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6497 goto nla_put_failure;
6498 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6499 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6500 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6501 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6502 jiffies_to_msecs(jiffies - intbss->ts)))
6503 goto nla_put_failure;
2a519311 6504
77965c97 6505 switch (rdev->wiphy.signal_type) {
2a519311 6506 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6507 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6508 goto nla_put_failure;
2a519311
JB		 6509 break;
6510 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6511 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6512 goto nla_put_failure;
2a519311
JB		 6513 break;
6514 default:
6515 break;
6516 }
6517
48ab905d 6518 switch (wdev->iftype) {
074ac8df 6519 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6520 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6521 if (intbss == wdev->current_bss &&
6522 nla_put_u32(msg, NL80211_BSS_STATUS,
6523 NL80211_BSS_STATUS_ASSOCIATED))
6524 goto nla_put_failure;
48ab905d
JB		 6525 break;
6526 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6527 if (intbss == wdev->current_bss &&
6528 nla_put_u32(msg, NL80211_BSS_STATUS,
6529 NL80211_BSS_STATUS_IBSS_JOINED))
6530 goto nla_put_failure;
48ab905d
JB		 6531 break;
6532 default:
6533 break;
6534 }
6535
2a519311
JB		 6536 nla_nest_end(msg, bss);
6537
6538 return genlmsg_end(msg, hdr);
6539
8cef2c9d
JB		 6540 fail_unlock_rcu:
6541 rcu_read_unlock();
2a519311
JB		 6542 nla_put_failure:
6543 genlmsg_cancel(msg, hdr);
6544 return -EMSGSIZE;
6545}
6546
97990a06 6547static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6548{
48ab905d 6549 struct cfg80211_registered_device *rdev;
2a519311 6550 struct cfg80211_internal_bss *scan;
48ab905d 6551 struct wireless_dev *wdev;
97990a06 6552 int start = cb->args[2], idx = 0;
2a519311
JB		 6553 int err;
6554
97990a06 6555 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6556 if (err)
6557 return err;
2a519311 6558
48ab905d
JB		 6559 wdev_lock(wdev);
6560 spin_lock_bh(&rdev->bss_lock);
6561 cfg80211_bss_expire(rdev);
6562
9720bb3a
JB		 6563 cb->seq = rdev->bss_generation;
6564
48ab905d 6565 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6566 if (++idx <= start)
6567 continue;
9720bb3a 6568 if (nl80211_send_bss(skb, cb,
2a519311 6569 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6570 rdev, wdev, scan) < 0) {
2a519311 6571 idx--;
67748893 6572 break;
2a519311
JB		 6573 }
6574 }
6575
48ab905d
JB		 6576 spin_unlock_bh(&rdev->bss_lock);
6577 wdev_unlock(wdev);
2a519311 6578
97990a06
JB		 6579 cb->args[2] = idx;
6580 nl80211_finish_wdev_dump(rdev);
2a519311 6581
67748893 6582 return skb->len;
2a519311
JB		 6583}
6584
15e47304 6585static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6586 int flags, struct net_device *dev,
6587 struct survey_info *survey)
6588{
6589 void *hdr;
6590 struct nlattr *infoattr;
6591
15e47304 6592 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6593 NL80211_CMD_NEW_SURVEY_RESULTS);
6594 if (!hdr)
6595 return -ENOMEM;
6596
9360ffd1
DM		 6597 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6598 goto nla_put_failure;
61fa713c
HS		 6599
6600 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6601 if (!infoattr)
6602 goto nla_put_failure;
6603
9360ffd1
DM		 6604 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6605 survey->channel->center_freq))
6606 goto nla_put_failure;
6607
6608 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6609 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6610 goto nla_put_failure;
6611 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6612 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6613 goto nla_put_failure;
6614 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6615 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6616 survey->channel_time))
6617 goto nla_put_failure;
6618 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6619 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6620 survey->channel_time_busy))
6621 goto nla_put_failure;
6622 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6623 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6624 survey->channel_time_ext_busy))
6625 goto nla_put_failure;
6626 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6627 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6628 survey->channel_time_rx))
6629 goto nla_put_failure;
6630 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6631 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6632 survey->channel_time_tx))
6633 goto nla_put_failure;
61fa713c
HS		 6634
6635 nla_nest_end(msg, infoattr);
6636
6637 return genlmsg_end(msg, hdr);
6638
6639 nla_put_failure:
6640 genlmsg_cancel(msg, hdr);
6641 return -EMSGSIZE;
6642}
6643
6644static int nl80211_dump_survey(struct sk_buff *skb,
6645 struct netlink_callback *cb)
6646{
6647 struct survey_info survey;
1b8ec87a 6648 struct cfg80211_registered_device *rdev;
97990a06
JB		 6649 struct wireless_dev *wdev;
6650 int survey_idx = cb->args[2];
61fa713c
HS		 6651 int res;
6652
1b8ec87a 6653 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6654 if (res)
6655 return res;
61fa713c 6656
97990a06
JB		 6657 if (!wdev->netdev) {
6658 res = -EINVAL;
6659 goto out_err;
6660 }
6661
1b8ec87a 6662 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6663 res = -EOPNOTSUPP;
6664 goto out_err;
6665 }
6666
6667 while (1) {
1b8ec87a 6668 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6669 if (res == -ENOENT)
6670 break;
6671 if (res)
6672 goto out_err;
6673
180cdc79
LR		 6674 /* Survey without a channel doesn't make sense */
6675 if (!survey.channel) {
6676 res = -EINVAL;
6677 goto out;
6678 }
6679
ea9eba6a 6680 if (survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6681 survey_idx++;
6682 continue;
6683 }
6684
61fa713c 6685 if (nl80211_send_survey(skb,
15e47304 6686 NETLINK_CB(cb->skb).portid,
61fa713c 6687 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6688 wdev->netdev, &survey) < 0)
61fa713c
HS		 6689 goto out;
6690 survey_idx++;
6691 }
6692
6693 out:
97990a06 6694 cb->args[2] = survey_idx;
61fa713c
HS		 6695 res = skb->len;
6696 out_err:
1b8ec87a 6697 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6698 return res;
6699}
6700
b23aa676
SO		 6701static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6702{
6703 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6704 NL80211_WPA_VERSION_2));
6705}
6706
636a5d36
JM		 6707static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6708{
4c476991
JB		 6709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6710 struct net_device *dev = info->user_ptr[1];
19957bb3 6711 struct ieee80211_channel *chan;
e39e5b5e
JM		 6712 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6713 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6714 enum nl80211_auth_type auth_type;
fffd0934 6715 struct key_parse key;
d5cdfacb 6716 bool local_state_change;
636a5d36 6717
f4a11bb0
JB		 6718 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6719 return -EINVAL;
6720
6721 if (!info->attrs[NL80211_ATTR_MAC])
6722 return -EINVAL;
6723
1778092e
JM		 6724 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6725 return -EINVAL;
6726
19957bb3
JB		 6727 if (!info->attrs[NL80211_ATTR_SSID])
6728 return -EINVAL;
6729
6730 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6731 return -EINVAL;
6732
fffd0934
JB		 6733 err = nl80211_parse_key(info, &key);
6734 if (err)
6735 return err;
6736
6737 if (key.idx >= 0) {
e31b8213
JB		 6738 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6739 return -EINVAL;
fffd0934
JB		 6740 if (!key.p.key || !key.p.key_len)
6741 return -EINVAL;
6742 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6743 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6744 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6745 key.p.key_len != WLAN_KEY_LEN_WEP104))
6746 return -EINVAL;
6747 if (key.idx > 4)
6748 return -EINVAL;
6749 } else {
6750 key.p.key_len = 0;
6751 key.p.key = NULL;
6752 }
6753
afea0b7a
JB		 6754 if (key.idx >= 0) {
6755 int i;
6756 bool ok = false;
6757 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6758 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6759 ok = true;
6760 break;
6761 }
6762 }
4c476991
JB		 6763 if (!ok)
6764 return -EINVAL;
afea0b7a
JB		 6765 }
6766
4c476991
JB		 6767 if (!rdev->ops->auth)
6768 return -EOPNOTSUPP;
636a5d36 6769
074ac8df 6770 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6771 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6772 return -EOPNOTSUPP;
eec60b03 6773
19957bb3 6774 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6775 chan = nl80211_get_valid_chan(&rdev->wiphy,
6776 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6777 if (!chan)
4c476991 6778 return -EINVAL;
636a5d36 6779
19957bb3
JB		 6780 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6781 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6782
6783 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6784 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6785 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6786 }
6787
19957bb3 6788 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6789 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6790 return -EINVAL;
636a5d36 6791
e39e5b5e
JM		 6792 if (auth_type == NL80211_AUTHTYPE_SAE &&
6793 !info->attrs[NL80211_ATTR_SAE_DATA])
6794 return -EINVAL;
6795
6796 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6797 if (auth_type != NL80211_AUTHTYPE_SAE)
6798 return -EINVAL;
6799 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6800 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6801 /* need to include at least Auth Transaction and Status Code */
6802 if (sae_data_len < 4)
6803 return -EINVAL;
6804 }
6805
d5cdfacb
JM		 6806 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6807
95de817b
JB		 6808 /*
6809 * Since we no longer track auth state, ignore
6810 * requests to only change local state.
6811 */
6812 if (local_state_change)
6813 return 0;
6814
91bf9b26
JB		 6815 wdev_lock(dev->ieee80211_ptr);
6816 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6817 ssid, ssid_len, ie, ie_len,
6818 key.p.key, key.p.key_len, key.idx,
6819 sae_data, sae_data_len);
6820 wdev_unlock(dev->ieee80211_ptr);
6821 return err;
636a5d36
JM		 6822}
6823
c0692b8f
JB		 6824static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6825 struct genl_info *info,
3dc27d25
JB		 6826 struct cfg80211_crypto_settings *settings,
6827 int cipher_limit)
b23aa676 6828{
c0b2bbd8
JB		 6829 memset(settings, 0, sizeof(*settings));
6830
b23aa676
SO		 6831 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6832
c0692b8f
JB		 6833 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6834 u16 proto;
6835 proto = nla_get_u16(
6836 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6837 settings->control_port_ethertype = cpu_to_be16(proto);
6838 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6839 proto != ETH_P_PAE)
6840 return -EINVAL;
6841 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6842 settings->control_port_no_encrypt = true;
6843 } else
6844 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6845
b23aa676
SO		 6846 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6847 void *data;
6848 int len, i;
6849
6850 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6851 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6852 settings->n_ciphers_pairwise = len / sizeof(u32);
6853
6854 if (len % sizeof(u32))
6855 return -EINVAL;
6856
3dc27d25 6857 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6858 return -EINVAL;
6859
6860 memcpy(settings->ciphers_pairwise, data, len);
6861
6862 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6863 if (!cfg80211_supported_cipher_suite(
6864 &rdev->wiphy,
b23aa676
SO		 6865 settings->ciphers_pairwise[i]))
6866 return -EINVAL;
6867 }
6868
6869 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6870 settings->cipher_group =
6871 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6872 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6873 settings->cipher_group))
b23aa676
SO		 6874 return -EINVAL;
6875 }
6876
6877 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6878 settings->wpa_versions =
6879 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6880 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6881 return -EINVAL;
6882 }
6883
6884 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6885 void *data;
6d30240e 6886 int len;
b23aa676
SO		 6887
6888 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6889 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6890 settings->n_akm_suites = len / sizeof(u32);
6891
6892 if (len % sizeof(u32))
6893 return -EINVAL;
6894
1b9ca027
JM		 6895 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6896 return -EINVAL;
6897
b23aa676 6898 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6899 }
6900
6901 return 0;
6902}
6903
636a5d36
JM		 6904static int nl80211_associate(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];
f444de05 6908 struct ieee80211_channel *chan;
f62fab73
JB		 6909 struct cfg80211_assoc_request req = {};
6910 const u8 *bssid, *ssid;
6911 int err, ssid_len = 0;
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] ||
19957bb3
JB		 6917 !info->attrs[NL80211_ATTR_SSID] ||
6918 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6919 return -EINVAL;
6920
4c476991
JB		 6921 if (!rdev->ops->assoc)
6922 return -EOPNOTSUPP;
636a5d36 6923
074ac8df 6924 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6925 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6926 return -EOPNOTSUPP;
eec60b03 6927
19957bb3 6928 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6929
664834de
JM		 6930 chan = nl80211_get_valid_chan(&rdev->wiphy,
6931 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6932 if (!chan)
4c476991 6933 return -EINVAL;
636a5d36 6934
19957bb3
JB		 6935 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6936 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6937
6938 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6939 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6940 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6941 }
6942
dc6382ce 6943 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6944 enum nl80211_mfp mfp =
dc6382ce 6945 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6946 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6947 req.use_mfp = true;
4c476991
JB		 6948 else if (mfp != NL80211_MFP_NO)
6949 return -EINVAL;
dc6382ce
JM		 6950 }
6951
3e5d7649 6952 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6953 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6954
7e7c8926 6955 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6956 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6957
6958 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6959 memcpy(&req.ht_capa_mask,
6960 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6961 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6962
6963 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6964 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6965 return -EINVAL;
f62fab73
JB		 6966 memcpy(&req.ht_capa,
6967 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6968 sizeof(req.ht_capa));
7e7c8926
BG		 6969 }
6970
ee2aca34 6971 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6972 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6973
6974 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6975 memcpy(&req.vht_capa_mask,
6976 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6977 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6978
6979 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6980 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6981 return -EINVAL;
f62fab73
JB		 6982 memcpy(&req.vht_capa,
6983 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6984 sizeof(req.vht_capa));
ee2aca34
JB		 6985 }
6986
bab5ab7d
AK		 6987 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6988 if (!(rdev->wiphy.features &
6989 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6990 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6991 return -EINVAL;
6992 req.flags |= ASSOC_REQ_USE_RRM;
6993 }
6994
f62fab73 6995 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6996 if (!err) {
6997 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6998 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6999 ssid, ssid_len, &req);
91bf9b26
JB		 7000 wdev_unlock(dev->ieee80211_ptr);
7001 }
636a5d36 7002
636a5d36
JM		 7003 return err;
7004}
7005
7006static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7007{
4c476991
JB		 7008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7009 struct net_device *dev = info->user_ptr[1];
19957bb3 7010 const u8 *ie = NULL, *bssid;
91bf9b26 7011 int ie_len = 0, err;
19957bb3 7012 u16 reason_code;
d5cdfacb 7013 bool local_state_change;
636a5d36 7014
f4a11bb0
JB		 7015 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7016 return -EINVAL;
7017
7018 if (!info->attrs[NL80211_ATTR_MAC])
7019 return -EINVAL;
7020
7021 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7022 return -EINVAL;
7023
4c476991
JB		 7024 if (!rdev->ops->deauth)
7025 return -EOPNOTSUPP;
636a5d36 7026
074ac8df 7027 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7028 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7029 return -EOPNOTSUPP;
eec60b03 7030
19957bb3 7031 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7032
19957bb3
JB		 7033 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7034 if (reason_code == 0) {
f4a11bb0 7035 /* Reason Code 0 is reserved */
4c476991 7036 return -EINVAL;
255e737e 7037 }
636a5d36
JM		 7038
7039 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7040 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7041 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7042 }
7043
d5cdfacb
JM		 7044 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7045
91bf9b26
JB		 7046 wdev_lock(dev->ieee80211_ptr);
7047 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7048 local_state_change);
7049 wdev_unlock(dev->ieee80211_ptr);
7050 return err;
636a5d36
JM		 7051}
7052
7053static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7054{
4c476991
JB		 7055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7056 struct net_device *dev = info->user_ptr[1];
19957bb3 7057 const u8 *ie = NULL, *bssid;
91bf9b26 7058 int ie_len = 0, err;
19957bb3 7059 u16 reason_code;
d5cdfacb 7060 bool local_state_change;
636a5d36 7061
f4a11bb0
JB		 7062 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7063 return -EINVAL;
7064
7065 if (!info->attrs[NL80211_ATTR_MAC])
7066 return -EINVAL;
7067
7068 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7069 return -EINVAL;
7070
4c476991
JB		 7071 if (!rdev->ops->disassoc)
7072 return -EOPNOTSUPP;
636a5d36 7073
074ac8df 7074 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7075 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7076 return -EOPNOTSUPP;
eec60b03 7077
19957bb3 7078 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7079
19957bb3
JB		 7080 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7081 if (reason_code == 0) {
f4a11bb0 7082 /* Reason Code 0 is reserved */
4c476991 7083 return -EINVAL;
255e737e 7084 }
636a5d36
JM		 7085
7086 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7087 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7088 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7089 }
7090
d5cdfacb
JM		 7091 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7092
91bf9b26
JB		 7093 wdev_lock(dev->ieee80211_ptr);
7094 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7095 local_state_change);
7096 wdev_unlock(dev->ieee80211_ptr);
7097 return err;
636a5d36
JM		 7098}
7099
dd5b4cc7
FF		 7100static bool
7101nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7102 int mcast_rate[IEEE80211_NUM_BANDS],
7103 int rateval)
7104{
7105 struct wiphy *wiphy = &rdev->wiphy;
7106 bool found = false;
7107 int band, i;
7108
7109 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7110 struct ieee80211_supported_band *sband;
7111
7112 sband = wiphy->bands[band];
7113 if (!sband)
7114 continue;
7115
7116 for (i = 0; i < sband->n_bitrates; i++) {
7117 if (sband->bitrates[i].bitrate == rateval) {
7118 mcast_rate[band] = i + 1;
7119 found = true;
7120 break;
7121 }
7122 }
7123 }
7124
7125 return found;
7126}
7127
04a773ad
JB		 7128static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7129{
4c476991
JB		 7130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7131 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7132 struct cfg80211_ibss_params ibss;
7133 struct wiphy *wiphy;
fffd0934 7134 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7135 int err;
7136
8e30bc55
JB		 7137 memset(&ibss, 0, sizeof(ibss));
7138
04a773ad
JB		 7139 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7140 return -EINVAL;
7141
683b6d3b 7142 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7143 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7144 return -EINVAL;
7145
8e30bc55
JB		 7146 ibss.beacon_interval = 100;
7147
7148 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7149 ibss.beacon_interval =
7150 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7151 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7152 return -EINVAL;
7153 }
7154
4c476991
JB		 7155 if (!rdev->ops->join_ibss)
7156 return -EOPNOTSUPP;
04a773ad 7157
4c476991
JB		 7158 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7159 return -EOPNOTSUPP;
04a773ad 7160
79c97e97 7161 wiphy = &rdev->wiphy;
04a773ad 7162
39193498 7163 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7164 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7165
7166 if (!is_valid_ether_addr(ibss.bssid))
7167 return -EINVAL;
7168 }
04a773ad
JB		 7169 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7170 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7171
7172 if (info->attrs[NL80211_ATTR_IE]) {
7173 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7174 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7175 }
7176
683b6d3b
JB		 7177 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7178 if (err)
7179 return err;
04a773ad 7180
174e0cd2
IP		 7181 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7182 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7183 return -EINVAL;
7184
2f301ab2 7185 switch (ibss.chandef.width) {
bf372645
SW		 7186 case NL80211_CHAN_WIDTH_5:
7187 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7188 case NL80211_CHAN_WIDTH_20_NOHT:
7189 break;
7190 case NL80211_CHAN_WIDTH_20:
7191 case NL80211_CHAN_WIDTH_40:
7192 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7193 break;
7194 default:
c04d6150 7195 return -EINVAL;
2f301ab2 7196 }
db9c64cf 7197
04a773ad 7198 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7199 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7200
fbd2c8dc
TP		 7201 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7202 u8 *rates =
7203 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7204 int n_rates =
7205 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7206 struct ieee80211_supported_band *sband =
683b6d3b 7207 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7208
34850ab2
JB		 7209 err = ieee80211_get_ratemask(sband, rates, n_rates,
7210 &ibss.basic_rates);
7211 if (err)
7212 return err;
fbd2c8dc 7213 }
dd5b4cc7 7214
803768f5
SW		 7215 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7216 memcpy(&ibss.ht_capa_mask,
7217 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7218 sizeof(ibss.ht_capa_mask));
7219
7220 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7221 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7222 return -EINVAL;
7223 memcpy(&ibss.ht_capa,
7224 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7225 sizeof(ibss.ht_capa));
7226 }
7227
dd5b4cc7
FF		 7228 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7229 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7230 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7231 return -EINVAL;
fbd2c8dc 7232
4c476991 7233 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7234 bool no_ht = false;
7235
4c476991 7236 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7237 info->attrs[NL80211_ATTR_KEYS],
7238 &no_ht);
4c476991
JB		 7239 if (IS_ERR(connkeys))
7240 return PTR_ERR(connkeys);
de7044ee 7241
3d9d1d66
JB		 7242 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7243 no_ht) {
de7044ee
SM		 7244 kfree(connkeys);
7245 return -EINVAL;
7246 }
4c476991 7247 }
04a773ad 7248
267335d6
AQ		 7249 ibss.control_port =
7250 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7251
5336fa88
SW		 7252 ibss.userspace_handles_dfs =
7253 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7254
4c476991 7255 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7256 if (err)
b47f610b 7257 kzfree(connkeys);
04a773ad
JB		 7258 return err;
7259}
7260
7261static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7262{
4c476991
JB		 7263 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7264 struct net_device *dev = info->user_ptr[1];
04a773ad 7265
4c476991
JB		 7266 if (!rdev->ops->leave_ibss)
7267 return -EOPNOTSUPP;
04a773ad 7268
4c476991
JB		 7269 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7270 return -EOPNOTSUPP;
04a773ad 7271
4c476991 7272 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7273}
7274
f4e583c8
AQ		 7275static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7276{
7277 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7278 struct net_device *dev = info->user_ptr[1];
7279 int mcast_rate[IEEE80211_NUM_BANDS];
7280 u32 nla_rate;
7281 int err;
7282
7283 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7284 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7285 return -EOPNOTSUPP;
7286
7287 if (!rdev->ops->set_mcast_rate)
7288 return -EOPNOTSUPP;
7289
7290 memset(mcast_rate, 0, sizeof(mcast_rate));
7291
7292 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7293 return -EINVAL;
7294
7295 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7296 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7297 return -EINVAL;
7298
7299 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7300
7301 return err;
7302}
7303
ad7e718c
JB		 7304static struct sk_buff *
7305__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7306 int approxlen, u32 portid, u32 seq,
7307 enum nl80211_commands cmd,
567ffc35
JB		 7308 enum nl80211_attrs attr,
7309 const struct nl80211_vendor_cmd_info *info,
7310 gfp_t gfp)
ad7e718c
JB		 7311{
7312 struct sk_buff *skb;
7313 void *hdr;
7314 struct nlattr *data;
7315
7316 skb = nlmsg_new(approxlen + 100, gfp);
7317 if (!skb)
7318 return NULL;
7319
7320 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7321 if (!hdr) {
7322 kfree_skb(skb);
7323 return NULL;
7324 }
7325
7326 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7327 goto nla_put_failure;
567ffc35
JB		 7328
7329 if (info) {
7330 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7331 info->vendor_id))
7332 goto nla_put_failure;
7333 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7334 info->subcmd))
7335 goto nla_put_failure;
7336 }
7337
ad7e718c
JB		 7338 data = nla_nest_start(skb, attr);
7339
7340 ((void **)skb->cb)[0] = rdev;
7341 ((void **)skb->cb)[1] = hdr;
7342 ((void **)skb->cb)[2] = data;
7343
7344 return skb;
7345
7346 nla_put_failure:
7347 kfree_skb(skb);
7348 return NULL;
7349}
f4e583c8 7350
e03ad6ea
JB		 7351struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7352 enum nl80211_commands cmd,
7353 enum nl80211_attrs attr,
7354 int vendor_event_idx,
7355 int approxlen, gfp_t gfp)
7356{
f26cbf40 7357 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7358 const struct nl80211_vendor_cmd_info *info;
7359
7360 switch (cmd) {
7361 case NL80211_CMD_TESTMODE:
7362 if (WARN_ON(vendor_event_idx != -1))
7363 return NULL;
7364 info = NULL;
7365 break;
7366 case NL80211_CMD_VENDOR:
7367 if (WARN_ON(vendor_event_idx < 0 ||
7368 vendor_event_idx >= wiphy->n_vendor_events))
7369 return NULL;
7370 info = &wiphy->vendor_events[vendor_event_idx];
7371 break;
7372 default:
7373 WARN_ON(1);
7374 return NULL;
7375 }
7376
7377 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7378 cmd, attr, info, gfp);
7379}
7380EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7381
7382void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7383{
7384 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7385 void *hdr = ((void **)skb->cb)[1];
7386 struct nlattr *data = ((void **)skb->cb)[2];
7387 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7388
bd8c78e7
JB		 7389 /* clear CB data for netlink core to own from now on */
7390 memset(skb->cb, 0, sizeof(skb->cb));
7391
e03ad6ea
JB		 7392 nla_nest_end(skb, data);
7393 genlmsg_end(skb, hdr);
7394
7395 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7396 mcgrp = NL80211_MCGRP_VENDOR;
7397
7398 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7399 mcgrp, gfp);
7400}
7401EXPORT_SYMBOL(__cfg80211_send_event_skb);
7402
aff89a9b 7403#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7404static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7405{
4c476991 7406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7407 struct wireless_dev *wdev =
7408 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7409 int err;
7410
fc73f11f
DS		 7411 if (!rdev->ops->testmode_cmd)
7412 return -EOPNOTSUPP;
7413
7414 if (IS_ERR(wdev)) {
7415 err = PTR_ERR(wdev);
7416 if (err != -EINVAL)
7417 return err;
7418 wdev = NULL;
7419 } else if (wdev->wiphy != &rdev->wiphy) {
7420 return -EINVAL;
7421 }
7422
aff89a9b
JB		 7423 if (!info->attrs[NL80211_ATTR_TESTDATA])
7424 return -EINVAL;
7425
ad7e718c 7426 rdev->cur_cmd_info = info;
fc73f11f 7427 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7428 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7429 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7430 rdev->cur_cmd_info = NULL;
aff89a9b 7431
aff89a9b
JB		 7432 return err;
7433}
7434
71063f0e
WYG		 7435static int nl80211_testmode_dump(struct sk_buff *skb,
7436 struct netlink_callback *cb)
7437{
00918d33 7438 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7439 int err;
7440 long phy_idx;
7441 void *data = NULL;
7442 int data_len = 0;
7443
5fe231e8
JB		 7444 rtnl_lock();
7445
71063f0e
WYG		 7446 if (cb->args[0]) {
7447 /*
7448 * 0 is a valid index, but not valid for args[0],
7449 * so we need to offset by 1.
7450 */
7451 phy_idx = cb->args[0] - 1;
7452 } else {
7453 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7454 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7455 nl80211_policy);
7456 if (err)
5fe231e8 7457 goto out_err;
00918d33 7458
2bd7e35d
JB		 7459 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7460 nl80211_fam.attrbuf);
7461 if (IS_ERR(rdev)) {
5fe231e8
JB		 7462 err = PTR_ERR(rdev);
7463 goto out_err;
00918d33 7464 }
2bd7e35d
JB		 7465 phy_idx = rdev->wiphy_idx;
7466 rdev = NULL;
2bd7e35d 7467
71063f0e
WYG		 7468 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7469 cb->args[1] =
7470 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7471 }
7472
7473 if (cb->args[1]) {
7474 data = nla_data((void *)cb->args[1]);
7475 data_len = nla_len((void *)cb->args[1]);
7476 }
7477
00918d33
JB		 7478 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7479 if (!rdev) {
5fe231e8
JB		 7480 err = -ENOENT;
7481 goto out_err;
71063f0e 7482 }
71063f0e 7483
00918d33 7484 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7485 err = -EOPNOTSUPP;
7486 goto out_err;
7487 }
7488
7489 while (1) {
15e47304 7490 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7491 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7492 NL80211_CMD_TESTMODE);
7493 struct nlattr *tmdata;
7494
cb35fba3
DC		 7495 if (!hdr)
7496 break;
7497
9360ffd1 7498 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7499 genlmsg_cancel(skb, hdr);
7500 break;
7501 }
7502
7503 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7504 if (!tmdata) {
7505 genlmsg_cancel(skb, hdr);
7506 break;
7507 }
e35e4d28 7508 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7509 nla_nest_end(skb, tmdata);
7510
7511 if (err == -ENOBUFS || err == -ENOENT) {
7512 genlmsg_cancel(skb, hdr);
7513 break;
7514 } else if (err) {
7515 genlmsg_cancel(skb, hdr);
7516 goto out_err;
7517 }
7518
7519 genlmsg_end(skb, hdr);
7520 }
7521
7522 err = skb->len;
7523 /* see above */
7524 cb->args[0] = phy_idx + 1;
7525 out_err:
5fe231e8 7526 rtnl_unlock();
71063f0e
WYG		 7527 return err;
7528}
aff89a9b
JB		 7529#endif
7530
b23aa676
SO		 7531static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7532{
4c476991
JB		 7533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7534 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7535 struct cfg80211_connect_params connect;
7536 struct wiphy *wiphy;
fffd0934 7537 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7538 int err;
7539
7540 memset(&connect, 0, sizeof(connect));
7541
7542 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7543 return -EINVAL;
7544
7545 if (!info->attrs[NL80211_ATTR_SSID] ||
7546 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7547 return -EINVAL;
7548
7549 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7550 connect.auth_type =
7551 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7552 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7553 NL80211_CMD_CONNECT))
b23aa676
SO		 7554 return -EINVAL;
7555 } else
7556 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7557
7558 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7559
c0692b8f 7560 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7561 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7562 if (err)
7563 return err;
b23aa676 7564
074ac8df 7565 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7566 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7567 return -EOPNOTSUPP;
b23aa676 7568
79c97e97 7569 wiphy = &rdev->wiphy;
b23aa676 7570
4486ea98
BS		 7571 connect.bg_scan_period = -1;
7572 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7573 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7574 connect.bg_scan_period =
7575 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7576 }
7577
b23aa676
SO		 7578 if (info->attrs[NL80211_ATTR_MAC])
7579 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7580 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7581 connect.bssid_hint =
7582 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7583 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7584 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7585
7586 if (info->attrs[NL80211_ATTR_IE]) {
7587 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7588 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7589 }
7590
cee00a95
JM		 7591 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7592 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7593 if (connect.mfp != NL80211_MFP_REQUIRED &&
7594 connect.mfp != NL80211_MFP_NO)
7595 return -EINVAL;
7596 } else {
7597 connect.mfp = NL80211_MFP_NO;
7598 }
7599
b23aa676 7600 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7601 connect.channel = nl80211_get_valid_chan(
7602 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7603 if (!connect.channel)
1df4a510
JM		 7604 return -EINVAL;
7605 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7606 connect.channel_hint = nl80211_get_valid_chan(
7607 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7608 if (!connect.channel_hint)
4c476991 7609 return -EINVAL;
b23aa676
SO		 7610 }
7611
fffd0934
JB		 7612 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7613 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7614 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7615 if (IS_ERR(connkeys))
7616 return PTR_ERR(connkeys);
fffd0934
JB		 7617 }
7618
7e7c8926
BG		 7619 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7620 connect.flags |= ASSOC_REQ_DISABLE_HT;
7621
7622 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7623 memcpy(&connect.ht_capa_mask,
7624 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7625 sizeof(connect.ht_capa_mask));
7626
7627 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7628 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7629 kzfree(connkeys);
7e7c8926 7630 return -EINVAL;
b4e4f47e 7631 }
7e7c8926
BG		 7632 memcpy(&connect.ht_capa,
7633 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7634 sizeof(connect.ht_capa));
7635 }
7636
ee2aca34
JB		 7637 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7638 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7639
7640 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7641 memcpy(&connect.vht_capa_mask,
7642 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7643 sizeof(connect.vht_capa_mask));
7644
7645 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7646 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7647 kzfree(connkeys);
ee2aca34
JB		 7648 return -EINVAL;
7649 }
7650 memcpy(&connect.vht_capa,
7651 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7652 sizeof(connect.vht_capa));
7653 }
7654
bab5ab7d
AK		 7655 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7656 if (!(rdev->wiphy.features &
7657 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7658 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7659 return -EINVAL;
7660 connect.flags |= ASSOC_REQ_USE_RRM;
7661 }
7662
83739b03
JB		 7663 wdev_lock(dev->ieee80211_ptr);
7664 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7665 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7666 if (err)
b47f610b 7667 kzfree(connkeys);
b23aa676
SO		 7668 return err;
7669}
7670
7671static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7672{
4c476991
JB		 7673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7674 struct net_device *dev = info->user_ptr[1];
b23aa676 7675 u16 reason;
83739b03 7676 int ret;
b23aa676
SO		 7677
7678 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7679 reason = WLAN_REASON_DEAUTH_LEAVING;
7680 else
7681 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7682
7683 if (reason == 0)
7684 return -EINVAL;
7685
074ac8df 7686 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7687 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7688 return -EOPNOTSUPP;
b23aa676 7689
83739b03
JB		 7690 wdev_lock(dev->ieee80211_ptr);
7691 ret = cfg80211_disconnect(rdev, dev, reason, true);
7692 wdev_unlock(dev->ieee80211_ptr);
7693 return ret;
b23aa676
SO		 7694}
7695
463d0183
JB		 7696static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7697{
4c476991 7698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7699 struct net *net;
7700 int err;
7701 u32 pid;
7702
7703 if (!info->attrs[NL80211_ATTR_PID])
7704 return -EINVAL;
7705
7706 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7707
463d0183 7708 net = get_net_ns_by_pid(pid);
4c476991
JB		 7709 if (IS_ERR(net))
7710 return PTR_ERR(net);
463d0183
JB		 7711
7712 err = 0;
7713
7714 /* check if anything to do */
4c476991
JB		 7715 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7716 err = cfg80211_switch_netns(rdev, net);
463d0183 7717
463d0183 7718 put_net(net);
463d0183
JB		 7719 return err;
7720}
7721
67fbb16b
SO		 7722static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7723{
4c476991 7724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7725 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7726 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7727 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7728 struct cfg80211_pmksa pmksa;
7729
7730 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7731
7732 if (!info->attrs[NL80211_ATTR_MAC])
7733 return -EINVAL;
7734
7735 if (!info->attrs[NL80211_ATTR_PMKID])
7736 return -EINVAL;
7737
67fbb16b
SO		 7738 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7739 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7740
074ac8df 7741 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7742 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7743 return -EOPNOTSUPP;
67fbb16b
SO		 7744
7745 switch (info->genlhdr->cmd) {
7746 case NL80211_CMD_SET_PMKSA:
7747 rdev_ops = rdev->ops->set_pmksa;
7748 break;
7749 case NL80211_CMD_DEL_PMKSA:
7750 rdev_ops = rdev->ops->del_pmksa;
7751 break;
7752 default:
7753 WARN_ON(1);
7754 break;
7755 }
7756
4c476991
JB		 7757 if (!rdev_ops)
7758 return -EOPNOTSUPP;
67fbb16b 7759
4c476991 7760 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7761}
7762
7763static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7764{
4c476991
JB		 7765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7766 struct net_device *dev = info->user_ptr[1];
67fbb16b 7767
074ac8df 7768 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7769 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7770 return -EOPNOTSUPP;
67fbb16b 7771
4c476991
JB		 7772 if (!rdev->ops->flush_pmksa)
7773 return -EOPNOTSUPP;
67fbb16b 7774
e35e4d28 7775 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7776}
7777
109086ce
AN		 7778static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7779{
7780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7781 struct net_device *dev = info->user_ptr[1];
7782 u8 action_code, dialog_token;
df942e7b 7783 u32 peer_capability = 0;
109086ce
AN		 7784 u16 status_code;
7785 u8 *peer;
31fa97c5 7786 bool initiator;
109086ce
AN		 7787
7788 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7789 !rdev->ops->tdls_mgmt)
7790 return -EOPNOTSUPP;
7791
7792 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7793 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7794 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7795 !info->attrs[NL80211_ATTR_IE] ||
7796 !info->attrs[NL80211_ATTR_MAC])
7797 return -EINVAL;
7798
7799 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7800 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7801 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7802 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7803 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7804 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7805 peer_capability =
7806 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7807
e35e4d28 7808 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7809 dialog_token, status_code, peer_capability,
31fa97c5 7810 initiator,
e35e4d28
HG		 7811 nla_data(info->attrs[NL80211_ATTR_IE]),
7812 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7813}
7814
7815static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7816{
7817 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7818 struct net_device *dev = info->user_ptr[1];
7819 enum nl80211_tdls_operation operation;
7820 u8 *peer;
7821
7822 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7823 !rdev->ops->tdls_oper)
7824 return -EOPNOTSUPP;
7825
7826 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7827 !info->attrs[NL80211_ATTR_MAC])
7828 return -EINVAL;
7829
7830 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7831 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7832
e35e4d28 7833 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7834}
7835
9588bbd5
JM		 7836static int nl80211_remain_on_channel(struct sk_buff *skb,
7837 struct genl_info *info)
7838{
4c476991 7839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7840 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7841 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7842 struct sk_buff *msg;
7843 void *hdr;
7844 u64 cookie;
683b6d3b 7845 u32 duration;
9588bbd5
JM		 7846 int err;
7847
7848 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7849 !info->attrs[NL80211_ATTR_DURATION])
7850 return -EINVAL;
7851
7852 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7853
ebf348fc
JB		 7854 if (!rdev->ops->remain_on_channel ||
7855 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7856 return -EOPNOTSUPP;
7857
9588bbd5 7858 /*
ebf348fc
JB		 7859 * We should be on that channel for at least a minimum amount of
7860 * time (10ms) but no longer than the driver supports.
9588bbd5 7861 */
ebf348fc 7862 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7863 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7864 return -EINVAL;
7865
683b6d3b
JB		 7866 err = nl80211_parse_chandef(rdev, info, &chandef);
7867 if (err)
7868 return err;
9588bbd5
JM		 7869
7870 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7871 if (!msg)
7872 return -ENOMEM;
9588bbd5 7873
15e47304 7874 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7875 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7876 if (!hdr) {
7877 err = -ENOBUFS;
9588bbd5
JM		 7878 goto free_msg;
7879 }
7880
683b6d3b
JB		 7881 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7882 duration, &cookie);
9588bbd5
JM		 7883
7884 if (err)
7885 goto free_msg;
7886
9360ffd1
DM		 7887 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7888 goto nla_put_failure;
9588bbd5
JM		 7889
7890 genlmsg_end(msg, hdr);
4c476991
JB		 7891
7892 return genlmsg_reply(msg, info);
9588bbd5
JM		 7893
7894 nla_put_failure:
7895 err = -ENOBUFS;
7896 free_msg:
7897 nlmsg_free(msg);
9588bbd5
JM		 7898 return err;
7899}
7900
7901static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7902 struct genl_info *info)
7903{
4c476991 7904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7905 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7906 u64 cookie;
9588bbd5
JM		 7907
7908 if (!info->attrs[NL80211_ATTR_COOKIE])
7909 return -EINVAL;
7910
4c476991
JB		 7911 if (!rdev->ops->cancel_remain_on_channel)
7912 return -EOPNOTSUPP;
9588bbd5 7913
9588bbd5
JM		 7914 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7915
e35e4d28 7916 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7917}
7918
13ae75b1
JM		 7919static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7920 u8 *rates, u8 rates_len)
7921{
7922 u8 i;
7923 u32 mask = 0;
7924
7925 for (i = 0; i < rates_len; i++) {
7926 int rate = (rates[i] & 0x7f) * 5;
7927 int ridx;
7928 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7929 struct ieee80211_rate *srate =
7930 &sband->bitrates[ridx];
7931 if (rate == srate->bitrate) {
7932 mask |= 1 << ridx;
7933 break;
7934 }
7935 }
7936 if (ridx == sband->n_bitrates)
7937 return 0; /* rate not found */
7938 }
7939
7940 return mask;
7941}
7942
24db78c0
SW		 7943static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7944 u8 *rates, u8 rates_len,
7945 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7946{
7947 u8 i;
7948
7949 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7950
7951 for (i = 0; i < rates_len; i++) {
7952 int ridx, rbit;
7953
7954 ridx = rates[i] / 8;
7955 rbit = BIT(rates[i] % 8);
7956
7957 /* check validity */
910570b5 7958 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7959 return false;
7960
7961 /* check availability */
7962 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7963 mcs[ridx] |= rbit;
7964 else
7965 return false;
7966 }
7967
7968 return true;
7969}
7970
204e35a9
JD		 7971static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7972{
7973 u16 mcs_mask = 0;
7974
7975 switch (vht_mcs_map) {
7976 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7977 break;
7978 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7979 mcs_mask = 0x00FF;
7980 break;
7981 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7982 mcs_mask = 0x01FF;
7983 break;
7984 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7985 mcs_mask = 0x03FF;
7986 break;
7987 default:
7988 break;
7989 }
7990
7991 return mcs_mask;
7992}
7993
7994static void vht_build_mcs_mask(u16 vht_mcs_map,
7995 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7996{
7997 u8 nss;
7998
7999 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8000 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8001 vht_mcs_map >>= 2;
8002 }
8003}
8004
8005static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8006 struct nl80211_txrate_vht *txrate,
8007 u16 mcs[NL80211_VHT_NSS_MAX])
8008{
8009 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8010 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8011 u8 i;
8012
8013 if (!sband->vht_cap.vht_supported)
8014 return false;
8015
8016 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8017
8018 /* Build vht_mcs_mask from VHT capabilities */
8019 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8020
8021 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8022 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8023 mcs[i] = txrate->mcs[i];
8024 else
8025 return false;
8026 }
8027
8028 return true;
8029}
8030
b54452b0 8031static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8032 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8033 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8034 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8035 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8036 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8037 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8038};
8039
8040static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8041 struct genl_info *info)
8042{
8043 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8045 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8046 int rem, i;
8047 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8048 struct nlattr *tx_rates;
8049 struct ieee80211_supported_band *sband;
204e35a9 8050 u16 vht_tx_mcs_map;
13ae75b1 8051
4c476991
JB		 8052 if (!rdev->ops->set_bitrate_mask)
8053 return -EOPNOTSUPP;
13ae75b1
JM		 8054
8055 memset(&mask, 0, sizeof(mask));
8056 /* Default to all rates enabled */
8057 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8058 sband = rdev->wiphy.bands[i];
7869303b
JD		 8059
8060 if (!sband)
8061 continue;
8062
8063 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8064 memcpy(mask.control[i].ht_mcs,
7869303b 8065 sband->ht_cap.mcs.rx_mask,
d1e33e65 8066 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8067
8068 if (!sband->vht_cap.vht_supported)
8069 continue;
8070
8071 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8072 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8073 }
8074
b9243ab0
JD		 8075 /* if no rates are given set it back to the defaults */
8076 if (!info->attrs[NL80211_ATTR_TX_RATES])
8077 goto out;
8078
13ae75b1
JM		 8079 /*
8080 * The nested attribute uses enum nl80211_band as the index. This maps
8081 * directly to the enum ieee80211_band values used in cfg80211.
8082 */
24db78c0 8083 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8084 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8085 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8086 int err;
8087
4c476991
JB		 8088 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8089 return -EINVAL;
13ae75b1 8090 sband = rdev->wiphy.bands[band];
4c476991
JB		 8091 if (sband == NULL)
8092 return -EINVAL;
ae811e21
JB		 8093 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8094 nla_len(tx_rates), nl80211_txattr_policy);
8095 if (err)
8096 return err;
13ae75b1
JM		 8097 if (tb[NL80211_TXRATE_LEGACY]) {
8098 mask.control[band].legacy = rateset_to_mask(
8099 sband,
8100 nla_data(tb[NL80211_TXRATE_LEGACY]),
8101 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8102 if ((mask.control[band].legacy == 0) &&
8103 nla_len(tb[NL80211_TXRATE_LEGACY]))
8104 return -EINVAL;
24db78c0 8105 }
d1e33e65 8106 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8107 if (!ht_rateset_to_mask(
8108 sband,
d1e33e65
JD		 8109 nla_data(tb[NL80211_TXRATE_HT]),
8110 nla_len(tb[NL80211_TXRATE_HT]),
8111 mask.control[band].ht_mcs))
24db78c0
SW		 8112 return -EINVAL;
8113 }
204e35a9
JD		 8114 if (tb[NL80211_TXRATE_VHT]) {
8115 if (!vht_set_mcs_mask(
8116 sband,
8117 nla_data(tb[NL80211_TXRATE_VHT]),
8118 mask.control[band].vht_mcs))
8119 return -EINVAL;
8120 }
0b9323f6
JD		 8121 if (tb[NL80211_TXRATE_GI]) {
8122 mask.control[band].gi =
8123 nla_get_u8(tb[NL80211_TXRATE_GI]);
8124 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8125 return -EINVAL;
8126 }
24db78c0
SW		 8127
8128 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8129 /* don't allow empty legacy rates if HT or VHT
8130 * are not even supported.
8131 */
8132 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8133 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8134 return -EINVAL;
8135
8136 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8137 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8138 goto out;
8139
8140 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8141 if (mask.control[band].vht_mcs[i])
8142 goto out;
24db78c0
SW		 8143
8144 /* legacy and mcs rates may not be both empty */
204e35a9 8145 return -EINVAL;
13ae75b1
JM		 8146 }
8147 }
8148
b9243ab0 8149out:
e35e4d28 8150 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8151}
8152
2e161f78 8153static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8154{
4c476991 8155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8156 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8157 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8158
8159 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8160 return -EINVAL;
8161
2e161f78
JB		 8162 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8163 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8164
71bbc994
JB		 8165 switch (wdev->iftype) {
8166 case NL80211_IFTYPE_STATION:
8167 case NL80211_IFTYPE_ADHOC:
8168 case NL80211_IFTYPE_P2P_CLIENT:
8169 case NL80211_IFTYPE_AP:
8170 case NL80211_IFTYPE_AP_VLAN:
8171 case NL80211_IFTYPE_MESH_POINT:
8172 case NL80211_IFTYPE_P2P_GO:
98104fde 8173 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8174 break;
8175 default:
4c476991 8176 return -EOPNOTSUPP;
71bbc994 8177 }
026331c4
JM		 8178
8179 /* not much point in registering if we can't reply */
4c476991
JB		 8180 if (!rdev->ops->mgmt_tx)
8181 return -EOPNOTSUPP;
026331c4 8182
15e47304 8183 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8184 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8185 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8186}
8187
2e161f78 8188static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8189{
4c476991 8190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8191 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8192 struct cfg80211_chan_def chandef;
026331c4 8193 int err;
d64d373f 8194 void *hdr = NULL;
026331c4 8195 u64 cookie;
e247bd90 8196 struct sk_buff *msg = NULL;
b176e629
AO		 8197 struct cfg80211_mgmt_tx_params params = {
8198 .dont_wait_for_ack =
8199 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8200 };
026331c4 8201
683b6d3b 8202 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8203 return -EINVAL;
8204
4c476991
JB		 8205 if (!rdev->ops->mgmt_tx)
8206 return -EOPNOTSUPP;
026331c4 8207
71bbc994 8208 switch (wdev->iftype) {
ea141b75
AQ		 8209 case NL80211_IFTYPE_P2P_DEVICE:
8210 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8211 return -EINVAL;
71bbc994
JB		 8212 case NL80211_IFTYPE_STATION:
8213 case NL80211_IFTYPE_ADHOC:
8214 case NL80211_IFTYPE_P2P_CLIENT:
8215 case NL80211_IFTYPE_AP:
8216 case NL80211_IFTYPE_AP_VLAN:
8217 case NL80211_IFTYPE_MESH_POINT:
8218 case NL80211_IFTYPE_P2P_GO:
8219 break;
8220 default:
4c476991 8221 return -EOPNOTSUPP;
71bbc994 8222 }
026331c4 8223
f7ca38df 8224 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8225 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8226 return -EINVAL;
b176e629 8227 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8228
8229 /*
8230 * We should wait on the channel for at least a minimum amount
8231 * of time (10ms) but no longer than the driver supports.
8232 */
b176e629
AO		 8233 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8234 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8235 return -EINVAL;
8236
f7ca38df
JB		 8237 }
8238
b176e629 8239 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8240
b176e629 8241 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8242 return -EINVAL;
8243
b176e629 8244 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8245
ea141b75
AQ		 8246 /* get the channel if any has been specified, otherwise pass NULL to
8247 * the driver. The latter will use the current one
8248 */
8249 chandef.chan = NULL;
8250 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8251 err = nl80211_parse_chandef(rdev, info, &chandef);
8252 if (err)
8253 return err;
8254 }
8255
b176e629 8256 if (!chandef.chan && params.offchan)
ea141b75 8257 return -EINVAL;
026331c4 8258
34d22ce2
AO		 8259 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8260 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8261
8262 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8263 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8264 int i;
8265
8266 if (len % sizeof(u16))
8267 return -EINVAL;
8268
8269 params.n_csa_offsets = len / sizeof(u16);
8270 params.csa_offsets =
8271 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8272
8273 /* check that all the offsets fit the frame */
8274 for (i = 0; i < params.n_csa_offsets; i++) {
8275 if (params.csa_offsets[i] >= params.len)
8276 return -EINVAL;
8277 }
8278 }
8279
b176e629 8280 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8281 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8282 if (!msg)
8283 return -ENOMEM;
026331c4 8284
15e47304 8285 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8286 NL80211_CMD_FRAME);
cb35fba3
DC		 8287 if (!hdr) {
8288 err = -ENOBUFS;
e247bd90
JB		 8289 goto free_msg;
8290 }
026331c4 8291 }
e247bd90 8292
b176e629
AO		 8293 params.chan = chandef.chan;
8294 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8295 if (err)
8296 goto free_msg;
8297
e247bd90 8298 if (msg) {
9360ffd1
DM		 8299 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8300 goto nla_put_failure;
026331c4 8301
e247bd90
JB		 8302 genlmsg_end(msg, hdr);
8303 return genlmsg_reply(msg, info);
8304 }
8305
8306 return 0;
026331c4
JM		 8307
8308 nla_put_failure:
8309 err = -ENOBUFS;
8310 free_msg:
8311 nlmsg_free(msg);
026331c4
JM		 8312 return err;
8313}
8314
f7ca38df
JB		 8315static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8316{
8317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8318 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8319 u64 cookie;
8320
8321 if (!info->attrs[NL80211_ATTR_COOKIE])
8322 return -EINVAL;
8323
8324 if (!rdev->ops->mgmt_tx_cancel_wait)
8325 return -EOPNOTSUPP;
8326
71bbc994
JB		 8327 switch (wdev->iftype) {
8328 case NL80211_IFTYPE_STATION:
8329 case NL80211_IFTYPE_ADHOC:
8330 case NL80211_IFTYPE_P2P_CLIENT:
8331 case NL80211_IFTYPE_AP:
8332 case NL80211_IFTYPE_AP_VLAN:
8333 case NL80211_IFTYPE_P2P_GO:
98104fde 8334 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8335 break;
8336 default:
f7ca38df 8337 return -EOPNOTSUPP;
71bbc994 8338 }
f7ca38df
JB		 8339
8340 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8341
e35e4d28 8342 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8343}
8344
ffb9eb3d
KV		 8345static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8346{
4c476991 8347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8348 struct wireless_dev *wdev;
4c476991 8349 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8350 u8 ps_state;
8351 bool state;
8352 int err;
8353
4c476991
JB		 8354 if (!info->attrs[NL80211_ATTR_PS_STATE])
8355 return -EINVAL;
ffb9eb3d
KV		 8356
8357 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8358
4c476991
JB		 8359 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8360 return -EINVAL;
ffb9eb3d
KV		 8361
8362 wdev = dev->ieee80211_ptr;
8363
4c476991
JB		 8364 if (!rdev->ops->set_power_mgmt)
8365 return -EOPNOTSUPP;
ffb9eb3d
KV		 8366
8367 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8368
8369 if (state == wdev->ps)
4c476991 8370 return 0;
ffb9eb3d 8371
e35e4d28 8372 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8373 if (!err)
8374 wdev->ps = state;
ffb9eb3d
KV		 8375 return err;
8376}
8377
8378static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8379{
4c476991 8380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8381 enum nl80211_ps_state ps_state;
8382 struct wireless_dev *wdev;
4c476991 8383 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8384 struct sk_buff *msg;
8385 void *hdr;
8386 int err;
8387
ffb9eb3d
KV		 8388 wdev = dev->ieee80211_ptr;
8389
4c476991
JB		 8390 if (!rdev->ops->set_power_mgmt)
8391 return -EOPNOTSUPP;
ffb9eb3d
KV		 8392
8393 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8394 if (!msg)
8395 return -ENOMEM;
ffb9eb3d 8396
15e47304 8397 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8398 NL80211_CMD_GET_POWER_SAVE);
8399 if (!hdr) {
4c476991 8400 err = -ENOBUFS;
ffb9eb3d
KV		 8401 goto free_msg;
8402 }
8403
8404 if (wdev->ps)
8405 ps_state = NL80211_PS_ENABLED;
8406 else
8407 ps_state = NL80211_PS_DISABLED;
8408
9360ffd1
DM		 8409 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8410 goto nla_put_failure;
ffb9eb3d
KV		 8411
8412 genlmsg_end(msg, hdr);
4c476991 8413 return genlmsg_reply(msg, info);
ffb9eb3d 8414
4c476991 8415 nla_put_failure:
ffb9eb3d 8416 err = -ENOBUFS;
4c476991 8417 free_msg:
ffb9eb3d 8418 nlmsg_free(msg);
ffb9eb3d
KV		 8419 return err;
8420}
8421
94e860f1
JB		 8422static const struct nla_policy
8423nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8424 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8425 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8426 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8427 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8428 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8429 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8430};
8431
84f10708 8432static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8433 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8434{
8435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8436 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8437 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8438
d9d8b019 8439 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8440 return -EINVAL;
8441
84f10708
TP		 8442 if (!rdev->ops->set_cqm_txe_config)
8443 return -EOPNOTSUPP;
8444
8445 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8446 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8447 return -EOPNOTSUPP;
8448
e35e4d28 8449 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8450}
8451
d6dc1a38
JO		 8452static int nl80211_set_cqm_rssi(struct genl_info *info,
8453 s32 threshold, u32 hysteresis)
8454{
4c476991 8455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8456 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8457 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8458
8459 if (threshold > 0)
8460 return -EINVAL;
8461
1da5fcc8
JB		 8462 /* disabling - hysteresis should also be zero then */
8463 if (threshold == 0)
8464 hysteresis = 0;
d6dc1a38 8465
4c476991
JB		 8466 if (!rdev->ops->set_cqm_rssi_config)
8467 return -EOPNOTSUPP;
d6dc1a38 8468
074ac8df 8469 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8470 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8471 return -EOPNOTSUPP;
d6dc1a38 8472
e35e4d28 8473 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8474}
8475
8476static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8477{
8478 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8479 struct nlattr *cqm;
8480 int err;
8481
8482 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8483 if (!cqm)
8484 return -EINVAL;
d6dc1a38
JO		 8485
8486 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8487 nl80211_attr_cqm_policy);
8488 if (err)
1da5fcc8 8489 return err;
d6dc1a38
JO		 8490
8491 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8492 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8493 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8494 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8495
1da5fcc8
JB		 8496 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8497 }
8498
8499 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8500 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8501 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8502 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8503 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8504 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8505
8506 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8507 }
8508
8509 return -EINVAL;
d6dc1a38
JO		 8510}
8511
6e0bd6c3
RL		 8512static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8513{
8514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8515 struct net_device *dev = info->user_ptr[1];
8516 struct ocb_setup setup = {};
8517 int err;
8518
8519 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8520 if (err)
8521 return err;
8522
8523 return cfg80211_join_ocb(rdev, dev, &setup);
8524}
8525
8526static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8527{
8528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8529 struct net_device *dev = info->user_ptr[1];
8530
8531 return cfg80211_leave_ocb(rdev, dev);
8532}
8533
29cbe68c
JB		 8534static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8535{
8536 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8537 struct net_device *dev = info->user_ptr[1];
8538 struct mesh_config cfg;
c80d545d 8539 struct mesh_setup setup;
29cbe68c
JB		 8540 int err;
8541
8542 /* start with default */
8543 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8544 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8545
24bdd9f4 8546 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8547 /* and parse parameters if given */
24bdd9f4 8548 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8549 if (err)
8550 return err;
8551 }
8552
8553 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8554 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8555 return -EINVAL;
8556
c80d545d
JC		 8557 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8558 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8559
4bb62344
CYY		 8560 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8561 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8562 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8563 return -EINVAL;
8564
9bdbf04d
MP		 8565 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8566 setup.beacon_interval =
8567 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8568 if (setup.beacon_interval < 10 ||
8569 setup.beacon_interval > 10000)
8570 return -EINVAL;
8571 }
8572
8573 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8574 setup.dtim_period =
8575 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8576 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8577 return -EINVAL;
8578 }
8579
c80d545d
JC		 8580 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8581 /* parse additional setup parameters if given */
8582 err = nl80211_parse_mesh_setup(info, &setup);
8583 if (err)
8584 return err;
8585 }
8586
d37bb18a
TP		 8587 if (setup.user_mpm)
8588 cfg.auto_open_plinks = false;
8589
cc1d2806 8590 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8591 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8592 if (err)
8593 return err;
cc1d2806
JB		 8594 } else {
8595 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8596 setup.chandef.chan = NULL;
cc1d2806
JB		 8597 }
8598
ffb3cf30
AN		 8599 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8600 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8601 int n_rates =
8602 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8603 struct ieee80211_supported_band *sband;
8604
8605 if (!setup.chandef.chan)
8606 return -EINVAL;
8607
8608 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8609
8610 err = ieee80211_get_ratemask(sband, rates, n_rates,
8611 &setup.basic_rates);
8612 if (err)
8613 return err;
8614 }
8615
c80d545d 8616 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8617}
8618
8619static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8620{
8621 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8622 struct net_device *dev = info->user_ptr[1];
8623
8624 return cfg80211_leave_mesh(rdev, dev);
8625}
8626
dfb89c56 8627#ifdef CONFIG_PM
bb92d199
AK		 8628static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8629 struct cfg80211_registered_device *rdev)
8630{
6abb9cb9 8631 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8632 struct nlattr *nl_pats, *nl_pat;
8633 int i, pat_len;
8634
6abb9cb9 8635 if (!wowlan->n_patterns)
bb92d199
AK		 8636 return 0;
8637
8638 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8639 if (!nl_pats)
8640 return -ENOBUFS;
8641
6abb9cb9 8642 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8643 nl_pat = nla_nest_start(msg, i + 1);
8644 if (!nl_pat)
8645 return -ENOBUFS;
6abb9cb9 8646 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8647 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8648 wowlan->patterns[i].mask) ||
50ac6607
AK		 8649 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8650 wowlan->patterns[i].pattern) ||
8651 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8652 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8653 return -ENOBUFS;
8654 nla_nest_end(msg, nl_pat);
8655 }
8656 nla_nest_end(msg, nl_pats);
8657
8658 return 0;
8659}
8660
2a0e047e
JB		 8661static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8662 struct cfg80211_wowlan_tcp *tcp)
8663{
8664 struct nlattr *nl_tcp;
8665
8666 if (!tcp)
8667 return 0;
8668
8669 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8670 if (!nl_tcp)
8671 return -ENOBUFS;
8672
8673 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8674 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8675 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8676 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8677 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8678 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8679 tcp->payload_len, tcp->payload) ||
8680 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8681 tcp->data_interval) ||
8682 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8683 tcp->wake_len, tcp->wake_data) ||
8684 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8685 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8686 return -ENOBUFS;
8687
8688 if (tcp->payload_seq.len &&
8689 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8690 sizeof(tcp->payload_seq), &tcp->payload_seq))
8691 return -ENOBUFS;
8692
8693 if (tcp->payload_tok.len &&
8694 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8695 sizeof(tcp->payload_tok) + tcp->tokens_size,
8696 &tcp->payload_tok))
8697 return -ENOBUFS;
8698
e248ad30
JB		 8699 nla_nest_end(msg, nl_tcp);
8700
2a0e047e
JB		 8701 return 0;
8702}
8703
ff1b6e69
JB		 8704static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8705{
8706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8707 struct sk_buff *msg;
8708 void *hdr;
2a0e047e 8709 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8710
964dc9e2 8711 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8712 return -EOPNOTSUPP;
8713
6abb9cb9 8714 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8715 /* adjust size to have room for all the data */
6abb9cb9
JB		 8716 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8717 rdev->wiphy.wowlan_config->tcp->payload_len +
8718 rdev->wiphy.wowlan_config->tcp->wake_len +
8719 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8720 }
8721
8722 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8723 if (!msg)
8724 return -ENOMEM;
8725
15e47304 8726 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8727 NL80211_CMD_GET_WOWLAN);
8728 if (!hdr)
8729 goto nla_put_failure;
8730
6abb9cb9 8731 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8732 struct nlattr *nl_wowlan;
8733
8734 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8735 if (!nl_wowlan)
8736 goto nla_put_failure;
8737
6abb9cb9 8738 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8739 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8740 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8741 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8742 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8743 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8744 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8745 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8746 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8747 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8748 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8749 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8750 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8751 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8752 goto nla_put_failure;
2a0e047e 8753
bb92d199
AK		 8754 if (nl80211_send_wowlan_patterns(msg, rdev))
8755 goto nla_put_failure;
2a0e047e 8756
6abb9cb9
JB		 8757 if (nl80211_send_wowlan_tcp(msg,
8758 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8759 goto nla_put_failure;
8760
ff1b6e69
JB		 8761 nla_nest_end(msg, nl_wowlan);
8762 }
8763
8764 genlmsg_end(msg, hdr);
8765 return genlmsg_reply(msg, info);
8766
8767nla_put_failure:
8768 nlmsg_free(msg);
8769 return -ENOBUFS;
8770}
8771
2a0e047e
JB		 8772static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8773 struct nlattr *attr,
8774 struct cfg80211_wowlan *trig)
8775{
8776 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8777 struct cfg80211_wowlan_tcp *cfg;
8778 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8779 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8780 u32 size;
8781 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8782 int err, port;
8783
964dc9e2 8784 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8785 return -EINVAL;
8786
8787 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8788 nla_data(attr), nla_len(attr),
8789 nl80211_wowlan_tcp_policy);
8790 if (err)
8791 return err;
8792
8793 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8794 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8795 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8796 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8797 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8798 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8799 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8800 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8801 return -EINVAL;
8802
8803 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8804 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8805 return -EINVAL;
8806
8807 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8808 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8809 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8810 return -EINVAL;
8811
8812 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8813 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8814 return -EINVAL;
8815
8816 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8817 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8818 return -EINVAL;
8819
8820 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8821 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8822
8823 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8824 tokens_size = tokln - sizeof(*tok);
8825
8826 if (!tok->len || tokens_size % tok->len)
8827 return -EINVAL;
964dc9e2 8828 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8829 return -EINVAL;
964dc9e2 8830 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8831 return -EINVAL;
964dc9e2 8832 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8833 return -EINVAL;
964dc9e2 8834 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8835 return -EINVAL;
8836 if (tok->offset + tok->len > data_size)
8837 return -EINVAL;
8838 }
8839
8840 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8841 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8842 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8843 return -EINVAL;
8844 if (seq->len == 0 || seq->len > 4)
8845 return -EINVAL;
8846 if (seq->len + seq->offset > data_size)
8847 return -EINVAL;
8848 }
8849
8850 size = sizeof(*cfg);
8851 size += data_size;
8852 size += wake_size + wake_mask_size;
8853 size += tokens_size;
8854
8855 cfg = kzalloc(size, GFP_KERNEL);
8856 if (!cfg)
8857 return -ENOMEM;
8858 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8859 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8860 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8861 ETH_ALEN);
8862 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8863 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8864 else
8865 port = 0;
8866#ifdef CONFIG_INET
8867 /* allocate a socket and port for it and use it */
8868 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8869 IPPROTO_TCP, &cfg->sock, 1);
8870 if (err) {
8871 kfree(cfg);
8872 return err;
8873 }
8874 if (inet_csk_get_port(cfg->sock->sk, port)) {
8875 sock_release(cfg->sock);
8876 kfree(cfg);
8877 return -EADDRINUSE;
8878 }
8879 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8880#else
8881 if (!port) {
8882 kfree(cfg);
8883 return -EINVAL;
8884 }
8885 cfg->src_port = port;
8886#endif
8887
8888 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8889 cfg->payload_len = data_size;
8890 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8891 memcpy((void *)cfg->payload,
8892 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8893 data_size);
8894 if (seq)
8895 cfg->payload_seq = *seq;
8896 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8897 cfg->wake_len = wake_size;
8898 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8899 memcpy((void *)cfg->wake_data,
8900 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8901 wake_size);
8902 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8903 data_size + wake_size;
8904 memcpy((void *)cfg->wake_mask,
8905 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8906 wake_mask_size);
8907 if (tok) {
8908 cfg->tokens_size = tokens_size;
8909 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8910 }
8911
8912 trig->tcp = cfg;
8913
8914 return 0;
8915}
8916
8cd4d456
LC		 8917static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
8918 const struct wiphy_wowlan_support *wowlan,
8919 struct nlattr *attr,
8920 struct cfg80211_wowlan *trig)
8921{
8922 struct nlattr **tb;
8923 int err;
8924
8925 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
8926 if (!tb)
8927 return -ENOMEM;
8928
8929 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
8930 err = -EOPNOTSUPP;
8931 goto out;
8932 }
8933
8934 err = nla_parse(tb, NL80211_ATTR_MAX,
8935 nla_data(attr), nla_len(attr),
8936 nl80211_policy);
8937 if (err)
8938 goto out;
8939
ad2b26ab 8940 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 8941 err = PTR_ERR_OR_ZERO(trig->nd_config);
8942 if (err)
8943 trig->nd_config = NULL;
8944
8945out:
8946 kfree(tb);
8947 return err;
8948}
8949
ff1b6e69
JB		 8950static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8951{
8952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8953 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8954 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8955 struct cfg80211_wowlan *ntrig;
964dc9e2 8956 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8957 int err, i;
6abb9cb9 8958 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8959
964dc9e2 8960 if (!wowlan)
ff1b6e69
JB		 8961 return -EOPNOTSUPP;
8962
ae33bd81
JB		 8963 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8964 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8965 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8966 goto set_wakeup;
8967 }
ff1b6e69
JB		 8968
8969 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8970 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8971 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8972 nl80211_wowlan_policy);
8973 if (err)
8974 return err;
8975
8976 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8977 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8978 return -EINVAL;
8979 new_triggers.any = true;
8980 }
8981
8982 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8983 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8984 return -EINVAL;
8985 new_triggers.disconnect = true;
8986 }
8987
8988 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8989 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8990 return -EINVAL;
8991 new_triggers.magic_pkt = true;
8992 }
8993
77dbbb13
JB		 8994 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8995 return -EINVAL;
8996
8997 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8998 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8999 return -EINVAL;
9000 new_triggers.gtk_rekey_failure = true;
9001 }
9002
9003 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9004 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9005 return -EINVAL;
9006 new_triggers.eap_identity_req = true;
9007 }
9008
9009 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9010 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9011 return -EINVAL;
9012 new_triggers.four_way_handshake = true;
9013 }
9014
9015 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9016 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9017 return -EINVAL;
9018 new_triggers.rfkill_release = true;
9019 }
9020
ff1b6e69
JB		 9021 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9022 struct nlattr *pat;
9023 int n_patterns = 0;
bb92d199 9024 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9025 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 9026
9027 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9028 rem)
9029 n_patterns++;
9030 if (n_patterns > wowlan->n_patterns)
9031 return -EINVAL;
9032
9033 new_triggers.patterns = kcalloc(n_patterns,
9034 sizeof(new_triggers.patterns[0]),
9035 GFP_KERNEL);
9036 if (!new_triggers.patterns)
9037 return -ENOMEM;
9038
9039 new_triggers.n_patterns = n_patterns;
9040 i = 0;
9041
9042 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9043 rem) {
922bd80f
JB		 9044 u8 *mask_pat;
9045
50ac6607
AK		 9046 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9047 nla_len(pat), NULL);
ff1b6e69 9048 err = -EINVAL;
50ac6607
AK		 9049 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9050 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9051 goto error;
50ac6607 9052 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9053 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9054 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9055 goto error;
9056 if (pat_len > wowlan->pattern_max_len ||
9057 pat_len < wowlan->pattern_min_len)
9058 goto error;
9059
50ac6607 9060 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9061 pkt_offset = 0;
9062 else
9063 pkt_offset = nla_get_u32(
50ac6607 9064 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9065 if (pkt_offset > wowlan->max_pkt_offset)
9066 goto error;
9067 new_triggers.patterns[i].pkt_offset = pkt_offset;
9068
922bd80f
JB		 9069 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9070 if (!mask_pat) {
ff1b6e69
JB		 9071 err = -ENOMEM;
9072 goto error;
9073 }
922bd80f
JB		 9074 new_triggers.patterns[i].mask = mask_pat;
9075 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9076 mask_len);
922bd80f
JB		 9077 mask_pat += mask_len;
9078 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9079 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9080 memcpy(mask_pat,
50ac6607 9081 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9082 pat_len);
9083 i++;
9084 }
9085 }
9086
2a0e047e
JB		 9087 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9088 err = nl80211_parse_wowlan_tcp(
9089 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9090 &new_triggers);
9091 if (err)
9092 goto error;
9093 }
9094
8cd4d456
LC		 9095 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9096 err = nl80211_parse_wowlan_nd(
9097 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9098 &new_triggers);
9099 if (err)
9100 goto error;
9101 }
9102
ae33bd81
JB		 9103 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9104 if (!ntrig) {
9105 err = -ENOMEM;
9106 goto error;
ff1b6e69 9107 }
ae33bd81 9108 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9109 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9110
ae33bd81 9111 set_wakeup:
6abb9cb9
JB		 9112 if (rdev->ops->set_wakeup &&
9113 prev_enabled != !!rdev->wiphy.wowlan_config)
9114 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9115
ff1b6e69
JB		 9116 return 0;
9117 error:
9118 for (i = 0; i < new_triggers.n_patterns; i++)
9119 kfree(new_triggers.patterns[i].mask);
9120 kfree(new_triggers.patterns);
2a0e047e
JB		 9121 if (new_triggers.tcp && new_triggers.tcp->sock)
9122 sock_release(new_triggers.tcp->sock);
9123 kfree(new_triggers.tcp);
ff1b6e69
JB		 9124 return err;
9125}
dfb89c56 9126#endif
ff1b6e69 9127
be29b99a
AK		 9128static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9129 struct cfg80211_registered_device *rdev)
9130{
9131 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9132 int i, j, pat_len;
9133 struct cfg80211_coalesce_rules *rule;
9134
9135 if (!rdev->coalesce->n_rules)
9136 return 0;
9137
9138 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9139 if (!nl_rules)
9140 return -ENOBUFS;
9141
9142 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9143 nl_rule = nla_nest_start(msg, i + 1);
9144 if (!nl_rule)
9145 return -ENOBUFS;
9146
9147 rule = &rdev->coalesce->rules[i];
9148 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9149 rule->delay))
9150 return -ENOBUFS;
9151
9152 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9153 rule->condition))
9154 return -ENOBUFS;
9155
9156 nl_pats = nla_nest_start(msg,
9157 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9158 if (!nl_pats)
9159 return -ENOBUFS;
9160
9161 for (j = 0; j < rule->n_patterns; j++) {
9162 nl_pat = nla_nest_start(msg, j + 1);
9163 if (!nl_pat)
9164 return -ENOBUFS;
9165 pat_len = rule->patterns[j].pattern_len;
9166 if (nla_put(msg, NL80211_PKTPAT_MASK,
9167 DIV_ROUND_UP(pat_len, 8),
9168 rule->patterns[j].mask) ||
9169 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9170 rule->patterns[j].pattern) ||
9171 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9172 rule->patterns[j].pkt_offset))
9173 return -ENOBUFS;
9174 nla_nest_end(msg, nl_pat);
9175 }
9176 nla_nest_end(msg, nl_pats);
9177 nla_nest_end(msg, nl_rule);
9178 }
9179 nla_nest_end(msg, nl_rules);
9180
9181 return 0;
9182}
9183
9184static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9185{
9186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9187 struct sk_buff *msg;
9188 void *hdr;
9189
9190 if (!rdev->wiphy.coalesce)
9191 return -EOPNOTSUPP;
9192
9193 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9194 if (!msg)
9195 return -ENOMEM;
9196
9197 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9198 NL80211_CMD_GET_COALESCE);
9199 if (!hdr)
9200 goto nla_put_failure;
9201
9202 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9203 goto nla_put_failure;
9204
9205 genlmsg_end(msg, hdr);
9206 return genlmsg_reply(msg, info);
9207
9208nla_put_failure:
9209 nlmsg_free(msg);
9210 return -ENOBUFS;
9211}
9212
9213void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9214{
9215 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9216 int i, j;
9217 struct cfg80211_coalesce_rules *rule;
9218
9219 if (!coalesce)
9220 return;
9221
9222 for (i = 0; i < coalesce->n_rules; i++) {
9223 rule = &coalesce->rules[i];
9224 for (j = 0; j < rule->n_patterns; j++)
9225 kfree(rule->patterns[j].mask);
9226 kfree(rule->patterns);
9227 }
9228 kfree(coalesce->rules);
9229 kfree(coalesce);
9230 rdev->coalesce = NULL;
9231}
9232
9233static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9234 struct nlattr *rule,
9235 struct cfg80211_coalesce_rules *new_rule)
9236{
9237 int err, i;
9238 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9239 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9240 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9241 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9242
9243 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9244 nla_len(rule), nl80211_coalesce_policy);
9245 if (err)
9246 return err;
9247
9248 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9249 new_rule->delay =
9250 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9251 if (new_rule->delay > coalesce->max_delay)
9252 return -EINVAL;
9253
9254 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9255 new_rule->condition =
9256 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9257 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9258 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9259 return -EINVAL;
9260
9261 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9262 return -EINVAL;
9263
9264 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9265 rem)
9266 n_patterns++;
9267 if (n_patterns > coalesce->n_patterns)
9268 return -EINVAL;
9269
9270 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9271 GFP_KERNEL);
9272 if (!new_rule->patterns)
9273 return -ENOMEM;
9274
9275 new_rule->n_patterns = n_patterns;
9276 i = 0;
9277
9278 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9279 rem) {
922bd80f
JB		 9280 u8 *mask_pat;
9281
be29b99a
AK		 9282 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9283 nla_len(pat), NULL);
9284 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9285 !pat_tb[NL80211_PKTPAT_PATTERN])
9286 return -EINVAL;
9287 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9288 mask_len = DIV_ROUND_UP(pat_len, 8);
9289 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9290 return -EINVAL;
9291 if (pat_len > coalesce->pattern_max_len ||
9292 pat_len < coalesce->pattern_min_len)
9293 return -EINVAL;
9294
9295 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9296 pkt_offset = 0;
9297 else
9298 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9299 if (pkt_offset > coalesce->max_pkt_offset)
9300 return -EINVAL;
9301 new_rule->patterns[i].pkt_offset = pkt_offset;
9302
922bd80f
JB		 9303 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9304 if (!mask_pat)
be29b99a 9305 return -ENOMEM;
922bd80f
JB		 9306
9307 new_rule->patterns[i].mask = mask_pat;
9308 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9309 mask_len);
9310
9311 mask_pat += mask_len;
9312 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9313 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9314 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9315 pat_len);
be29b99a
AK		 9316 i++;
9317 }
9318
9319 return 0;
9320}
9321
9322static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9323{
9324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9325 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9326 struct cfg80211_coalesce new_coalesce = {};
9327 struct cfg80211_coalesce *n_coalesce;
9328 int err, rem_rule, n_rules = 0, i, j;
9329 struct nlattr *rule;
9330 struct cfg80211_coalesce_rules *tmp_rule;
9331
9332 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9333 return -EOPNOTSUPP;
9334
9335 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9336 cfg80211_rdev_free_coalesce(rdev);
9337 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9338 return 0;
9339 }
9340
9341 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9342 rem_rule)
9343 n_rules++;
9344 if (n_rules > coalesce->n_rules)
9345 return -EINVAL;
9346
9347 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9348 GFP_KERNEL);
9349 if (!new_coalesce.rules)
9350 return -ENOMEM;
9351
9352 new_coalesce.n_rules = n_rules;
9353 i = 0;
9354
9355 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9356 rem_rule) {
9357 err = nl80211_parse_coalesce_rule(rdev, rule,
9358 &new_coalesce.rules[i]);
9359 if (err)
9360 goto error;
9361
9362 i++;
9363 }
9364
9365 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9366 if (err)
9367 goto error;
9368
9369 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9370 if (!n_coalesce) {
9371 err = -ENOMEM;
9372 goto error;
9373 }
9374 cfg80211_rdev_free_coalesce(rdev);
9375 rdev->coalesce = n_coalesce;
9376
9377 return 0;
9378error:
9379 for (i = 0; i < new_coalesce.n_rules; i++) {
9380 tmp_rule = &new_coalesce.rules[i];
9381 for (j = 0; j < tmp_rule->n_patterns; j++)
9382 kfree(tmp_rule->patterns[j].mask);
9383 kfree(tmp_rule->patterns);
9384 }
9385 kfree(new_coalesce.rules);
9386
9387 return err;
9388}
9389
e5497d76
JB		 9390static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9391{
9392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9393 struct net_device *dev = info->user_ptr[1];
9394 struct wireless_dev *wdev = dev->ieee80211_ptr;
9395 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9396 struct cfg80211_gtk_rekey_data rekey_data;
9397 int err;
9398
9399 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9400 return -EINVAL;
9401
9402 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9403 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9404 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9405 nl80211_rekey_policy);
9406 if (err)
9407 return err;
9408
9409 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9410 return -ERANGE;
9411 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9412 return -ERANGE;
9413 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9414 return -ERANGE;
9415
78f686ca
JB		 9416 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9417 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9418 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9419
9420 wdev_lock(wdev);
9421 if (!wdev->current_bss) {
9422 err = -ENOTCONN;
9423 goto out;
9424 }
9425
9426 if (!rdev->ops->set_rekey_data) {
9427 err = -EOPNOTSUPP;
9428 goto out;
9429 }
9430
e35e4d28 9431 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9432 out:
9433 wdev_unlock(wdev);
9434 return err;
9435}
9436
28946da7
JB		 9437static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9438 struct genl_info *info)
9439{
9440 struct net_device *dev = info->user_ptr[1];
9441 struct wireless_dev *wdev = dev->ieee80211_ptr;
9442
9443 if (wdev->iftype != NL80211_IFTYPE_AP &&
9444 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9445 return -EINVAL;
9446
15e47304 9447 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9448 return -EBUSY;
9449
15e47304 9450 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9451 return 0;
9452}
9453
7f6cf311
JB		 9454static int nl80211_probe_client(struct sk_buff *skb,
9455 struct genl_info *info)
9456{
9457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9458 struct net_device *dev = info->user_ptr[1];
9459 struct wireless_dev *wdev = dev->ieee80211_ptr;
9460 struct sk_buff *msg;
9461 void *hdr;
9462 const u8 *addr;
9463 u64 cookie;
9464 int err;
9465
9466 if (wdev->iftype != NL80211_IFTYPE_AP &&
9467 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9468 return -EOPNOTSUPP;
9469
9470 if (!info->attrs[NL80211_ATTR_MAC])
9471 return -EINVAL;
9472
9473 if (!rdev->ops->probe_client)
9474 return -EOPNOTSUPP;
9475
9476 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9477 if (!msg)
9478 return -ENOMEM;
9479
15e47304 9480 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9481 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9482 if (!hdr) {
9483 err = -ENOBUFS;
7f6cf311
JB		 9484 goto free_msg;
9485 }
9486
9487 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9488
e35e4d28 9489 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9490 if (err)
9491 goto free_msg;
9492
9360ffd1
DM		 9493 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9494 goto nla_put_failure;
7f6cf311
JB		 9495
9496 genlmsg_end(msg, hdr);
9497
9498 return genlmsg_reply(msg, info);
9499
9500 nla_put_failure:
9501 err = -ENOBUFS;
9502 free_msg:
9503 nlmsg_free(msg);
9504 return err;
9505}
9506
5e760230
JB		 9507static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9508{
9509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9510 struct cfg80211_beacon_registration *reg, *nreg;
9511 int rv;
5e760230
JB		 9512
9513 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9514 return -EOPNOTSUPP;
9515
37c73b5f
BG		 9516 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9517 if (!nreg)
9518 return -ENOMEM;
9519
9520 /* First, check if already registered. */
9521 spin_lock_bh(&rdev->beacon_registrations_lock);
9522 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9523 if (reg->nlportid == info->snd_portid) {
9524 rv = -EALREADY;
9525 goto out_err;
9526 }
9527 }
9528 /* Add it to the list */
9529 nreg->nlportid = info->snd_portid;
9530 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9531
37c73b5f 9532 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9533
9534 return 0;
37c73b5f
BG		 9535out_err:
9536 spin_unlock_bh(&rdev->beacon_registrations_lock);
9537 kfree(nreg);
9538 return rv;
5e760230
JB		 9539}
9540
98104fde
JB		 9541static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9542{
9543 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9544 struct wireless_dev *wdev = info->user_ptr[1];
9545 int err;
9546
9547 if (!rdev->ops->start_p2p_device)
9548 return -EOPNOTSUPP;
9549
9550 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9551 return -EOPNOTSUPP;
9552
9553 if (wdev->p2p_started)
9554 return 0;
9555
b6a55015
LC		 9556 if (rfkill_blocked(rdev->rfkill))
9557 return -ERFKILL;
98104fde 9558
eeb126e9 9559 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9560 if (err)
9561 return err;
9562
9563 wdev->p2p_started = true;
98104fde 9564 rdev->opencount++;
98104fde
JB		 9565
9566 return 0;
9567}
9568
9569static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9570{
9571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9572 struct wireless_dev *wdev = info->user_ptr[1];
9573
9574 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9575 return -EOPNOTSUPP;
9576
9577 if (!rdev->ops->stop_p2p_device)
9578 return -EOPNOTSUPP;
9579
f9f47529 9580 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9581
9582 return 0;
9583}
9584
3713b4e3
JB		 9585static int nl80211_get_protocol_features(struct sk_buff *skb,
9586 struct genl_info *info)
9587{
9588 void *hdr;
9589 struct sk_buff *msg;
9590
9591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9592 if (!msg)
9593 return -ENOMEM;
9594
9595 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9596 NL80211_CMD_GET_PROTOCOL_FEATURES);
9597 if (!hdr)
9598 goto nla_put_failure;
9599
9600 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9601 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9602 goto nla_put_failure;
9603
9604 genlmsg_end(msg, hdr);
9605 return genlmsg_reply(msg, info);
9606
9607 nla_put_failure:
9608 kfree_skb(msg);
9609 return -ENOBUFS;
9610}
9611
355199e0
JM		 9612static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9613{
9614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9615 struct cfg80211_update_ft_ies_params ft_params;
9616 struct net_device *dev = info->user_ptr[1];
9617
9618 if (!rdev->ops->update_ft_ies)
9619 return -EOPNOTSUPP;
9620
9621 if (!info->attrs[NL80211_ATTR_MDID] ||
9622 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9623 return -EINVAL;
9624
9625 memset(&ft_params, 0, sizeof(ft_params));
9626 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9627 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9628 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9629
9630 return rdev_update_ft_ies(rdev, dev, &ft_params);
9631}
9632
5de17984
AS		 9633static int nl80211_crit_protocol_start(struct sk_buff *skb,
9634 struct genl_info *info)
9635{
9636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9637 struct wireless_dev *wdev = info->user_ptr[1];
9638 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9639 u16 duration;
9640 int ret;
9641
9642 if (!rdev->ops->crit_proto_start)
9643 return -EOPNOTSUPP;
9644
9645 if (WARN_ON(!rdev->ops->crit_proto_stop))
9646 return -EINVAL;
9647
9648 if (rdev->crit_proto_nlportid)
9649 return -EBUSY;
9650
9651 /* determine protocol if provided */
9652 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9653 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9654
9655 if (proto >= NUM_NL80211_CRIT_PROTO)
9656 return -EINVAL;
9657
9658 /* timeout must be provided */
9659 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9660 return -EINVAL;
9661
9662 duration =
9663 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9664
9665 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9666 return -ERANGE;
9667
9668 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9669 if (!ret)
9670 rdev->crit_proto_nlportid = info->snd_portid;
9671
9672 return ret;
9673}
9674
9675static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9676 struct genl_info *info)
9677{
9678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9679 struct wireless_dev *wdev = info->user_ptr[1];
9680
9681 if (!rdev->ops->crit_proto_stop)
9682 return -EOPNOTSUPP;
9683
9684 if (rdev->crit_proto_nlportid) {
9685 rdev->crit_proto_nlportid = 0;
9686 rdev_crit_proto_stop(rdev, wdev);
9687 }
9688 return 0;
9689}
9690
ad7e718c
JB		 9691static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9692{
9693 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9694 struct wireless_dev *wdev =
9695 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9696 int i, err;
9697 u32 vid, subcmd;
9698
9699 if (!rdev->wiphy.vendor_commands)
9700 return -EOPNOTSUPP;
9701
9702 if (IS_ERR(wdev)) {
9703 err = PTR_ERR(wdev);
9704 if (err != -EINVAL)
9705 return err;
9706 wdev = NULL;
9707 } else if (wdev->wiphy != &rdev->wiphy) {
9708 return -EINVAL;
9709 }
9710
9711 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9712 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9713 return -EINVAL;
9714
9715 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9716 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9717 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9718 const struct wiphy_vendor_command *vcmd;
9719 void *data = NULL;
9720 int len = 0;
9721
9722 vcmd = &rdev->wiphy.vendor_commands[i];
9723
9724 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9725 continue;
9726
9727 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9728 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9729 if (!wdev)
9730 return -EINVAL;
9731 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9732 !wdev->netdev)
9733 return -EINVAL;
9734
9735 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9736 if (wdev->netdev &&
9737 !netif_running(wdev->netdev))
9738 return -ENETDOWN;
9739 if (!wdev->netdev && !wdev->p2p_started)
9740 return -ENETDOWN;
9741 }
9742 } else {
9743 wdev = NULL;
9744 }
9745
9746 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9747 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9748 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9749 }
9750
9751 rdev->cur_cmd_info = info;
9752 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9753 data, len);
9754 rdev->cur_cmd_info = NULL;
9755 return err;
9756 }
9757
9758 return -EOPNOTSUPP;
9759}
9760
9761struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9762 enum nl80211_commands cmd,
9763 enum nl80211_attrs attr,
9764 int approxlen)
9765{
f26cbf40 9766 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9767
9768 if (WARN_ON(!rdev->cur_cmd_info))
9769 return NULL;
9770
9771 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9772 rdev->cur_cmd_info->snd_portid,
9773 rdev->cur_cmd_info->snd_seq,
567ffc35 9774 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9775}
9776EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9777
9778int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9779{
9780 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9781 void *hdr = ((void **)skb->cb)[1];
9782 struct nlattr *data = ((void **)skb->cb)[2];
9783
bd8c78e7
JB		 9784 /* clear CB data for netlink core to own from now on */
9785 memset(skb->cb, 0, sizeof(skb->cb));
9786
ad7e718c
JB		 9787 if (WARN_ON(!rdev->cur_cmd_info)) {
9788 kfree_skb(skb);
9789 return -EINVAL;
9790 }
9791
9792 nla_nest_end(skb, data);
9793 genlmsg_end(skb, hdr);
9794 return genlmsg_reply(skb, rdev->cur_cmd_info);
9795}
9796EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9797
9798
fa9ffc74
KP		 9799static int nl80211_set_qos_map(struct sk_buff *skb,
9800 struct genl_info *info)
9801{
9802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9803 struct cfg80211_qos_map *qos_map = NULL;
9804 struct net_device *dev = info->user_ptr[1];
9805 u8 *pos, len, num_des, des_len, des;
9806 int ret;
9807
9808 if (!rdev->ops->set_qos_map)
9809 return -EOPNOTSUPP;
9810
9811 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9812 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9813 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9814
9815 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9816 len > IEEE80211_QOS_MAP_LEN_MAX)
9817 return -EINVAL;
9818
9819 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9820 if (!qos_map)
9821 return -ENOMEM;
9822
9823 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9824 if (num_des) {
9825 des_len = num_des *
9826 sizeof(struct cfg80211_dscp_exception);
9827 memcpy(qos_map->dscp_exception, pos, des_len);
9828 qos_map->num_des = num_des;
9829 for (des = 0; des < num_des; des++) {
9830 if (qos_map->dscp_exception[des].up > 7) {
9831 kfree(qos_map);
9832 return -EINVAL;
9833 }
9834 }
9835 pos += des_len;
9836 }
9837 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9838 }
9839
9840 wdev_lock(dev->ieee80211_ptr);
9841 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9842 if (!ret)
9843 ret = rdev_set_qos_map(rdev, dev, qos_map);
9844 wdev_unlock(dev->ieee80211_ptr);
9845
9846 kfree(qos_map);
9847 return ret;
9848}
9849
960d01ac
JB		 9850static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9851{
9852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9853 struct net_device *dev = info->user_ptr[1];
9854 struct wireless_dev *wdev = dev->ieee80211_ptr;
9855 const u8 *peer;
9856 u8 tsid, up;
9857 u16 admitted_time = 0;
9858 int err;
9859
723e73ac 9860 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9861 return -EOPNOTSUPP;
9862
9863 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9864 !info->attrs[NL80211_ATTR_USER_PRIO])
9865 return -EINVAL;
9866
9867 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9868 if (tsid >= IEEE80211_NUM_TIDS)
9869 return -EINVAL;
9870
9871 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9872 if (up >= IEEE80211_NUM_UPS)
9873 return -EINVAL;
9874
9875 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9876 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9877 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9878 * need more attributes for that (e.g. BA session requirement);
9879 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9880 */
9881 return -EINVAL;
9882 }
9883
9884 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9885
9886 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9887 admitted_time =
9888 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9889 if (!admitted_time)
9890 return -EINVAL;
9891 }
9892
9893 wdev_lock(wdev);
9894 switch (wdev->iftype) {
9895 case NL80211_IFTYPE_STATION:
9896 case NL80211_IFTYPE_P2P_CLIENT:
9897 if (wdev->current_bss)
9898 break;
9899 err = -ENOTCONN;
9900 goto out;
9901 default:
9902 err = -EOPNOTSUPP;
9903 goto out;
9904 }
9905
9906 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9907
9908 out:
9909 wdev_unlock(wdev);
9910 return err;
9911}
9912
9913static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9914{
9915 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9916 struct net_device *dev = info->user_ptr[1];
9917 struct wireless_dev *wdev = dev->ieee80211_ptr;
9918 const u8 *peer;
9919 u8 tsid;
9920 int err;
9921
9922 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9923 return -EINVAL;
9924
9925 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9926 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9927
9928 wdev_lock(wdev);
9929 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9930 wdev_unlock(wdev);
9931
9932 return err;
9933}
9934
1057d35e
AN		 9935static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9936 struct genl_info *info)
9937{
9938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9939 struct net_device *dev = info->user_ptr[1];
9940 struct wireless_dev *wdev = dev->ieee80211_ptr;
9941 struct cfg80211_chan_def chandef = {};
9942 const u8 *addr;
9943 u8 oper_class;
9944 int err;
9945
9946 if (!rdev->ops->tdls_channel_switch ||
9947 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9948 return -EOPNOTSUPP;
9949
9950 switch (dev->ieee80211_ptr->iftype) {
9951 case NL80211_IFTYPE_STATION:
9952 case NL80211_IFTYPE_P2P_CLIENT:
9953 break;
9954 default:
9955 return -EOPNOTSUPP;
9956 }
9957
9958 if (!info->attrs[NL80211_ATTR_MAC] ||
9959 !info->attrs[NL80211_ATTR_OPER_CLASS])
9960 return -EINVAL;
9961
9962 err = nl80211_parse_chandef(rdev, info, &chandef);
9963 if (err)
9964 return err;
9965
9966 /*
9967 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9968 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9969 * specification is not defined for them.
9970 */
9971 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
9972 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
9973 chandef.width != NL80211_CHAN_WIDTH_20)
9974 return -EINVAL;
9975
9976 /* we will be active on the TDLS link */
9977 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
9978 return -EINVAL;
9979
9980 /* don't allow switching to DFS channels */
9981 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
9982 return -EINVAL;
9983
9984 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9985 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
9986
9987 wdev_lock(wdev);
9988 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
9989 wdev_unlock(wdev);
9990
9991 return err;
9992}
9993
9994static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
9995 struct genl_info *info)
9996{
9997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9998 struct net_device *dev = info->user_ptr[1];
9999 struct wireless_dev *wdev = dev->ieee80211_ptr;
10000 const u8 *addr;
10001
10002 if (!rdev->ops->tdls_channel_switch ||
10003 !rdev->ops->tdls_cancel_channel_switch ||
10004 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10005 return -EOPNOTSUPP;
10006
10007 switch (dev->ieee80211_ptr->iftype) {
10008 case NL80211_IFTYPE_STATION:
10009 case NL80211_IFTYPE_P2P_CLIENT:
10010 break;
10011 default:
10012 return -EOPNOTSUPP;
10013 }
10014
10015 if (!info->attrs[NL80211_ATTR_MAC])
10016 return -EINVAL;
10017
10018 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10019
10020 wdev_lock(wdev);
10021 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10022 wdev_unlock(wdev);
10023
10024 return 0;
10025}
10026
4c476991
JB		 10027#define NL80211_FLAG_NEED_WIPHY 0x01
10028#define NL80211_FLAG_NEED_NETDEV 0x02
10029#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10030#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10031#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10032 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10033#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10034/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10035#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10036 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10037#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10038
f84f771d 10039static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10040 struct genl_info *info)
10041{
10042 struct cfg80211_registered_device *rdev;
89a54e48 10043 struct wireless_dev *wdev;
4c476991 10044 struct net_device *dev;
4c476991
JB		 10045 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10046
10047 if (rtnl)
10048 rtnl_lock();
10049
10050 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10051 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10052 if (IS_ERR(rdev)) {
10053 if (rtnl)
10054 rtnl_unlock();
10055 return PTR_ERR(rdev);
10056 }
10057 info->user_ptr[0] = rdev;
1bf614ef
JB		 10058 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10059 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10060 ASSERT_RTNL();
10061
89a54e48
JB		 10062 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10063 info->attrs);
10064 if (IS_ERR(wdev)) {
4c476991
JB		 10065 if (rtnl)
10066 rtnl_unlock();
89a54e48 10067 return PTR_ERR(wdev);
4c476991 10068 }
89a54e48 10069
89a54e48 10070 dev = wdev->netdev;
f26cbf40 10071 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10072
1bf614ef
JB		 10073 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10074 if (!dev) {
1bf614ef
JB		 10075 if (rtnl)
10076 rtnl_unlock();
10077 return -EINVAL;
10078 }
10079
10080 info->user_ptr[1] = dev;
10081 } else {
10082 info->user_ptr[1] = wdev;
41265714 10083 }
1bf614ef
JB		 10084
10085 if (dev) {
10086 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10087 !netif_running(dev)) {
1bf614ef
JB		 10088 if (rtnl)
10089 rtnl_unlock();
10090 return -ENETDOWN;
10091 }
10092
10093 dev_hold(dev);
98104fde
JB		 10094 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10095 if (!wdev->p2p_started) {
98104fde
JB		 10096 if (rtnl)
10097 rtnl_unlock();
10098 return -ENETDOWN;
10099 }
41265714 10100 }
89a54e48 10101
4c476991 10102 info->user_ptr[0] = rdev;
4c476991
JB		 10103 }
10104
10105 return 0;
10106}
10107
f84f771d 10108static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10109 struct genl_info *info)
10110{
1bf614ef
JB		 10111 if (info->user_ptr[1]) {
10112 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10113 struct wireless_dev *wdev = info->user_ptr[1];
10114
10115 if (wdev->netdev)
10116 dev_put(wdev->netdev);
10117 } else {
10118 dev_put(info->user_ptr[1]);
10119 }
10120 }
5393b917 10121
4c476991
JB		 10122 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10123 rtnl_unlock();
5393b917
JB		 10124
10125 /* If needed, clear the netlink message payload from the SKB
10126 * as it might contain key data that shouldn't stick around on
10127 * the heap after the SKB is freed. The netlink message header
10128 * is still needed for further processing, so leave it intact.
10129 */
10130 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10131 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10132
10133 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10134 }
4c476991
JB		 10135}
10136
4534de83 10137static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10138 {
10139 .cmd = NL80211_CMD_GET_WIPHY,
10140 .doit = nl80211_get_wiphy,
10141 .dumpit = nl80211_dump_wiphy,
86e8cf98 10142 .done = nl80211_dump_wiphy_done,
55682965
JB		 10143 .policy = nl80211_policy,
10144 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10145 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10146 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10147 },
10148 {
10149 .cmd = NL80211_CMD_SET_WIPHY,
10150 .doit = nl80211_set_wiphy,
10151 .policy = nl80211_policy,
10152 .flags = GENL_ADMIN_PERM,
4c476991 10153 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10154 },
10155 {
10156 .cmd = NL80211_CMD_GET_INTERFACE,
10157 .doit = nl80211_get_interface,
10158 .dumpit = nl80211_dump_interface,
10159 .policy = nl80211_policy,
10160 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10161 .internal_flags = NL80211_FLAG_NEED_WDEV |
10162 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10163 },
10164 {
10165 .cmd = NL80211_CMD_SET_INTERFACE,
10166 .doit = nl80211_set_interface,
10167 .policy = nl80211_policy,
10168 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10169 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10170 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10171 },
10172 {
10173 .cmd = NL80211_CMD_NEW_INTERFACE,
10174 .doit = nl80211_new_interface,
10175 .policy = nl80211_policy,
10176 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10177 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10178 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10179 },
10180 {
10181 .cmd = NL80211_CMD_DEL_INTERFACE,
10182 .doit = nl80211_del_interface,
10183 .policy = nl80211_policy,
41ade00f 10184 .flags = GENL_ADMIN_PERM,
84efbb84 10185 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10186 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10187 },
10188 {
10189 .cmd = NL80211_CMD_GET_KEY,
10190 .doit = nl80211_get_key,
10191 .policy = nl80211_policy,
10192 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10193 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10194 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10195 },
10196 {
10197 .cmd = NL80211_CMD_SET_KEY,
10198 .doit = nl80211_set_key,
10199 .policy = nl80211_policy,
10200 .flags = GENL_ADMIN_PERM,
41265714 10201 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10202 NL80211_FLAG_NEED_RTNL |
10203 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10204 },
10205 {
10206 .cmd = NL80211_CMD_NEW_KEY,
10207 .doit = nl80211_new_key,
10208 .policy = nl80211_policy,
10209 .flags = GENL_ADMIN_PERM,
41265714 10210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10211 NL80211_FLAG_NEED_RTNL |
10212 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10213 },
10214 {
10215 .cmd = NL80211_CMD_DEL_KEY,
10216 .doit = nl80211_del_key,
10217 .policy = nl80211_policy,
55682965 10218 .flags = GENL_ADMIN_PERM,
41265714 10219 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10220 NL80211_FLAG_NEED_RTNL,
55682965 10221 },
ed1b6cc7
JB		 10222 {
10223 .cmd = NL80211_CMD_SET_BEACON,
10224 .policy = nl80211_policy,
10225 .flags = GENL_ADMIN_PERM,
8860020e 10226 .doit = nl80211_set_beacon,
2b5f8b0b 10227 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10228 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10229 },
10230 {
8860020e 10231 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10232 .policy = nl80211_policy,
10233 .flags = GENL_ADMIN_PERM,
8860020e 10234 .doit = nl80211_start_ap,
2b5f8b0b 10235 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10236 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10237 },
10238 {
8860020e 10239 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10240 .policy = nl80211_policy,
10241 .flags = GENL_ADMIN_PERM,
8860020e 10242 .doit = nl80211_stop_ap,
2b5f8b0b 10243 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10244 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10245 },
5727ef1b
JB		 10246 {
10247 .cmd = NL80211_CMD_GET_STATION,
10248 .doit = nl80211_get_station,
2ec600d6 10249 .dumpit = nl80211_dump_station,
5727ef1b 10250 .policy = nl80211_policy,
4c476991
JB		 10251 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10252 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10253 },
10254 {
10255 .cmd = NL80211_CMD_SET_STATION,
10256 .doit = nl80211_set_station,
10257 .policy = nl80211_policy,
10258 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10259 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10260 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10261 },
10262 {
10263 .cmd = NL80211_CMD_NEW_STATION,
10264 .doit = nl80211_new_station,
10265 .policy = nl80211_policy,
10266 .flags = GENL_ADMIN_PERM,
41265714 10267 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10268 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10269 },
10270 {
10271 .cmd = NL80211_CMD_DEL_STATION,
10272 .doit = nl80211_del_station,
10273 .policy = nl80211_policy,
2ec600d6 10274 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10275 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10276 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10277 },
10278 {
10279 .cmd = NL80211_CMD_GET_MPATH,
10280 .doit = nl80211_get_mpath,
10281 .dumpit = nl80211_dump_mpath,
10282 .policy = nl80211_policy,
10283 .flags = GENL_ADMIN_PERM,
41265714 10284 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10285 NL80211_FLAG_NEED_RTNL,
2ec600d6 10286 },
66be7d2b
HR		 10287 {
10288 .cmd = NL80211_CMD_GET_MPP,
10289 .doit = nl80211_get_mpp,
10290 .dumpit = nl80211_dump_mpp,
10291 .policy = nl80211_policy,
10292 .flags = GENL_ADMIN_PERM,
10293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10294 NL80211_FLAG_NEED_RTNL,
10295 },
2ec600d6
LCC		 10296 {
10297 .cmd = NL80211_CMD_SET_MPATH,
10298 .doit = nl80211_set_mpath,
10299 .policy = nl80211_policy,
10300 .flags = GENL_ADMIN_PERM,
41265714 10301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10302 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10303 },
10304 {
10305 .cmd = NL80211_CMD_NEW_MPATH,
10306 .doit = nl80211_new_mpath,
10307 .policy = nl80211_policy,
10308 .flags = GENL_ADMIN_PERM,
41265714 10309 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10310 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10311 },
10312 {
10313 .cmd = NL80211_CMD_DEL_MPATH,
10314 .doit = nl80211_del_mpath,
10315 .policy = nl80211_policy,
9f1ba906 10316 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10317 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10318 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10319 },
10320 {
10321 .cmd = NL80211_CMD_SET_BSS,
10322 .doit = nl80211_set_bss,
10323 .policy = nl80211_policy,
b2e1b302 10324 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10325 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10326 NL80211_FLAG_NEED_RTNL,
b2e1b302 10327 },
f130347c
LR		 10328 {
10329 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10330 .doit = nl80211_get_reg_do,
10331 .dumpit = nl80211_get_reg_dump,
f130347c 10332 .policy = nl80211_policy,
5fe231e8 10333 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10334 /* can be retrieved by unprivileged users */
10335 },
b2e1b302
LR		 10336 {
10337 .cmd = NL80211_CMD_SET_REG,
10338 .doit = nl80211_set_reg,
10339 .policy = nl80211_policy,
10340 .flags = GENL_ADMIN_PERM,
5fe231e8 10341 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10342 },
10343 {
10344 .cmd = NL80211_CMD_REQ_SET_REG,
10345 .doit = nl80211_req_set_reg,
10346 .policy = nl80211_policy,
93da9cc1 10347 .flags = GENL_ADMIN_PERM,
10348 },
10349 {
24bdd9f4
JC		 10350 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10351 .doit = nl80211_get_mesh_config,
93da9cc1 10352 .policy = nl80211_policy,
10353 /* can be retrieved by unprivileged users */
2b5f8b0b 10354 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10355 NL80211_FLAG_NEED_RTNL,
93da9cc1 10356 },
10357 {
24bdd9f4
JC		 10358 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10359 .doit = nl80211_update_mesh_config,
93da9cc1 10360 .policy = nl80211_policy,
9aed3cc1 10361 .flags = GENL_ADMIN_PERM,
29cbe68c 10362 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10363 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10364 },
2a519311
JB		 10365 {
10366 .cmd = NL80211_CMD_TRIGGER_SCAN,
10367 .doit = nl80211_trigger_scan,
10368 .policy = nl80211_policy,
10369 .flags = GENL_ADMIN_PERM,
fd014284 10370 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10371 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10372 },
10373 {
10374 .cmd = NL80211_CMD_GET_SCAN,
10375 .policy = nl80211_policy,
10376 .dumpit = nl80211_dump_scan,
10377 },
807f8a8c
LC		 10378 {
10379 .cmd = NL80211_CMD_START_SCHED_SCAN,
10380 .doit = nl80211_start_sched_scan,
10381 .policy = nl80211_policy,
10382 .flags = GENL_ADMIN_PERM,
10383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10384 NL80211_FLAG_NEED_RTNL,
10385 },
10386 {
10387 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10388 .doit = nl80211_stop_sched_scan,
10389 .policy = nl80211_policy,
10390 .flags = GENL_ADMIN_PERM,
10391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10392 NL80211_FLAG_NEED_RTNL,
10393 },
636a5d36
JM		 10394 {
10395 .cmd = NL80211_CMD_AUTHENTICATE,
10396 .doit = nl80211_authenticate,
10397 .policy = nl80211_policy,
10398 .flags = GENL_ADMIN_PERM,
41265714 10399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10400 NL80211_FLAG_NEED_RTNL |
10401 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10402 },
10403 {
10404 .cmd = NL80211_CMD_ASSOCIATE,
10405 .doit = nl80211_associate,
10406 .policy = nl80211_policy,
10407 .flags = GENL_ADMIN_PERM,
41265714 10408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10409 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10410 },
10411 {
10412 .cmd = NL80211_CMD_DEAUTHENTICATE,
10413 .doit = nl80211_deauthenticate,
10414 .policy = nl80211_policy,
10415 .flags = GENL_ADMIN_PERM,
41265714 10416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10417 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10418 },
10419 {
10420 .cmd = NL80211_CMD_DISASSOCIATE,
10421 .doit = nl80211_disassociate,
10422 .policy = nl80211_policy,
10423 .flags = GENL_ADMIN_PERM,
41265714 10424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10425 NL80211_FLAG_NEED_RTNL,
636a5d36 10426 },
04a773ad
JB		 10427 {
10428 .cmd = NL80211_CMD_JOIN_IBSS,
10429 .doit = nl80211_join_ibss,
10430 .policy = nl80211_policy,
10431 .flags = GENL_ADMIN_PERM,
41265714 10432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10433 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10434 },
10435 {
10436 .cmd = NL80211_CMD_LEAVE_IBSS,
10437 .doit = nl80211_leave_ibss,
10438 .policy = nl80211_policy,
10439 .flags = GENL_ADMIN_PERM,
41265714 10440 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10441 NL80211_FLAG_NEED_RTNL,
04a773ad 10442 },
aff89a9b
JB		 10443#ifdef CONFIG_NL80211_TESTMODE
10444 {
10445 .cmd = NL80211_CMD_TESTMODE,
10446 .doit = nl80211_testmode_do,
71063f0e 10447 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10448 .policy = nl80211_policy,
10449 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10450 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10451 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10452 },
10453#endif
b23aa676
SO		 10454 {
10455 .cmd = NL80211_CMD_CONNECT,
10456 .doit = nl80211_connect,
10457 .policy = nl80211_policy,
10458 .flags = GENL_ADMIN_PERM,
41265714 10459 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10460 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10461 },
10462 {
10463 .cmd = NL80211_CMD_DISCONNECT,
10464 .doit = nl80211_disconnect,
10465 .policy = nl80211_policy,
10466 .flags = GENL_ADMIN_PERM,
41265714 10467 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10468 NL80211_FLAG_NEED_RTNL,
b23aa676 10469 },
463d0183
JB		 10470 {
10471 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10472 .doit = nl80211_wiphy_netns,
10473 .policy = nl80211_policy,
10474 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10475 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10476 NL80211_FLAG_NEED_RTNL,
463d0183 10477 },
61fa713c
HS		 10478 {
10479 .cmd = NL80211_CMD_GET_SURVEY,
10480 .policy = nl80211_policy,
10481 .dumpit = nl80211_dump_survey,
10482 },
67fbb16b
SO		 10483 {
10484 .cmd = NL80211_CMD_SET_PMKSA,
10485 .doit = nl80211_setdel_pmksa,
10486 .policy = nl80211_policy,
10487 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10488 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10489 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10490 },
10491 {
10492 .cmd = NL80211_CMD_DEL_PMKSA,
10493 .doit = nl80211_setdel_pmksa,
10494 .policy = nl80211_policy,
10495 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10496 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10497 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10498 },
10499 {
10500 .cmd = NL80211_CMD_FLUSH_PMKSA,
10501 .doit = nl80211_flush_pmksa,
10502 .policy = nl80211_policy,
10503 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10505 NL80211_FLAG_NEED_RTNL,
67fbb16b 10506 },
9588bbd5
JM		 10507 {
10508 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10509 .doit = nl80211_remain_on_channel,
10510 .policy = nl80211_policy,
10511 .flags = GENL_ADMIN_PERM,
71bbc994 10512 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10513 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10514 },
10515 {
10516 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10517 .doit = nl80211_cancel_remain_on_channel,
10518 .policy = nl80211_policy,
10519 .flags = GENL_ADMIN_PERM,
71bbc994 10520 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10521 NL80211_FLAG_NEED_RTNL,
9588bbd5 10522 },
13ae75b1
JM		 10523 {
10524 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10525 .doit = nl80211_set_tx_bitrate_mask,
10526 .policy = nl80211_policy,
10527 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10528 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10529 NL80211_FLAG_NEED_RTNL,
13ae75b1 10530 },
026331c4 10531 {
2e161f78
JB		 10532 .cmd = NL80211_CMD_REGISTER_FRAME,
10533 .doit = nl80211_register_mgmt,
026331c4
JM		 10534 .policy = nl80211_policy,
10535 .flags = GENL_ADMIN_PERM,
71bbc994 10536 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10537 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10538 },
10539 {
2e161f78
JB		 10540 .cmd = NL80211_CMD_FRAME,
10541 .doit = nl80211_tx_mgmt,
026331c4 10542 .policy = nl80211_policy,
f7ca38df 10543 .flags = GENL_ADMIN_PERM,
71bbc994 10544 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10545 NL80211_FLAG_NEED_RTNL,
10546 },
10547 {
10548 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10549 .doit = nl80211_tx_mgmt_cancel_wait,
10550 .policy = nl80211_policy,
026331c4 10551 .flags = GENL_ADMIN_PERM,
71bbc994 10552 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10553 NL80211_FLAG_NEED_RTNL,
026331c4 10554 },
ffb9eb3d
KV		 10555 {
10556 .cmd = NL80211_CMD_SET_POWER_SAVE,
10557 .doit = nl80211_set_power_save,
10558 .policy = nl80211_policy,
10559 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10560 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10561 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10562 },
10563 {
10564 .cmd = NL80211_CMD_GET_POWER_SAVE,
10565 .doit = nl80211_get_power_save,
10566 .policy = nl80211_policy,
10567 /* can be retrieved by unprivileged users */
4c476991
JB		 10568 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10569 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10570 },
d6dc1a38
JO		 10571 {
10572 .cmd = NL80211_CMD_SET_CQM,
10573 .doit = nl80211_set_cqm,
10574 .policy = nl80211_policy,
10575 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10576 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10577 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10578 },
f444de05
JB		 10579 {
10580 .cmd = NL80211_CMD_SET_CHANNEL,
10581 .doit = nl80211_set_channel,
10582 .policy = nl80211_policy,
10583 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10584 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10585 NL80211_FLAG_NEED_RTNL,
f444de05 10586 },
e8347eba
BJ		 10587 {
10588 .cmd = NL80211_CMD_SET_WDS_PEER,
10589 .doit = nl80211_set_wds_peer,
10590 .policy = nl80211_policy,
10591 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10592 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10593 NL80211_FLAG_NEED_RTNL,
e8347eba 10594 },
29cbe68c
JB		 10595 {
10596 .cmd = NL80211_CMD_JOIN_MESH,
10597 .doit = nl80211_join_mesh,
10598 .policy = nl80211_policy,
10599 .flags = GENL_ADMIN_PERM,
10600 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10601 NL80211_FLAG_NEED_RTNL,
10602 },
10603 {
10604 .cmd = NL80211_CMD_LEAVE_MESH,
10605 .doit = nl80211_leave_mesh,
10606 .policy = nl80211_policy,
10607 .flags = GENL_ADMIN_PERM,
10608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10609 NL80211_FLAG_NEED_RTNL,
10610 },
6e0bd6c3
RL		 10611 {
10612 .cmd = NL80211_CMD_JOIN_OCB,
10613 .doit = nl80211_join_ocb,
10614 .policy = nl80211_policy,
10615 .flags = GENL_ADMIN_PERM,
10616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10617 NL80211_FLAG_NEED_RTNL,
10618 },
10619 {
10620 .cmd = NL80211_CMD_LEAVE_OCB,
10621 .doit = nl80211_leave_ocb,
10622 .policy = nl80211_policy,
10623 .flags = GENL_ADMIN_PERM,
10624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10625 NL80211_FLAG_NEED_RTNL,
10626 },
dfb89c56 10627#ifdef CONFIG_PM
ff1b6e69
JB		 10628 {
10629 .cmd = NL80211_CMD_GET_WOWLAN,
10630 .doit = nl80211_get_wowlan,
10631 .policy = nl80211_policy,
10632 /* can be retrieved by unprivileged users */
10633 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10634 NL80211_FLAG_NEED_RTNL,
10635 },
10636 {
10637 .cmd = NL80211_CMD_SET_WOWLAN,
10638 .doit = nl80211_set_wowlan,
10639 .policy = nl80211_policy,
10640 .flags = GENL_ADMIN_PERM,
10641 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10642 NL80211_FLAG_NEED_RTNL,
10643 },
dfb89c56 10644#endif
e5497d76
JB		 10645 {
10646 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10647 .doit = nl80211_set_rekey_data,
10648 .policy = nl80211_policy,
10649 .flags = GENL_ADMIN_PERM,
10650 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10651 NL80211_FLAG_NEED_RTNL |
10652 NL80211_FLAG_CLEAR_SKB,
e5497d76 10653 },
109086ce
AN		 10654 {
10655 .cmd = NL80211_CMD_TDLS_MGMT,
10656 .doit = nl80211_tdls_mgmt,
10657 .policy = nl80211_policy,
10658 .flags = GENL_ADMIN_PERM,
10659 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10660 NL80211_FLAG_NEED_RTNL,
10661 },
10662 {
10663 .cmd = NL80211_CMD_TDLS_OPER,
10664 .doit = nl80211_tdls_oper,
10665 .policy = nl80211_policy,
10666 .flags = GENL_ADMIN_PERM,
10667 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10668 NL80211_FLAG_NEED_RTNL,
10669 },
28946da7
JB		 10670 {
10671 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10672 .doit = nl80211_register_unexpected_frame,
10673 .policy = nl80211_policy,
10674 .flags = GENL_ADMIN_PERM,
10675 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10676 NL80211_FLAG_NEED_RTNL,
10677 },
7f6cf311
JB		 10678 {
10679 .cmd = NL80211_CMD_PROBE_CLIENT,
10680 .doit = nl80211_probe_client,
10681 .policy = nl80211_policy,
10682 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10683 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10684 NL80211_FLAG_NEED_RTNL,
10685 },
5e760230
JB		 10686 {
10687 .cmd = NL80211_CMD_REGISTER_BEACONS,
10688 .doit = nl80211_register_beacons,
10689 .policy = nl80211_policy,
10690 .flags = GENL_ADMIN_PERM,
10691 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10692 NL80211_FLAG_NEED_RTNL,
10693 },
1d9d9213
SW		 10694 {
10695 .cmd = NL80211_CMD_SET_NOACK_MAP,
10696 .doit = nl80211_set_noack_map,
10697 .policy = nl80211_policy,
10698 .flags = GENL_ADMIN_PERM,
10699 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10700 NL80211_FLAG_NEED_RTNL,
10701 },
98104fde
JB		 10702 {
10703 .cmd = NL80211_CMD_START_P2P_DEVICE,
10704 .doit = nl80211_start_p2p_device,
10705 .policy = nl80211_policy,
10706 .flags = GENL_ADMIN_PERM,
10707 .internal_flags = NL80211_FLAG_NEED_WDEV |
10708 NL80211_FLAG_NEED_RTNL,
10709 },
10710 {
10711 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10712 .doit = nl80211_stop_p2p_device,
10713 .policy = nl80211_policy,
10714 .flags = GENL_ADMIN_PERM,
10715 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10716 NL80211_FLAG_NEED_RTNL,
10717 },
f4e583c8
AQ		 10718 {
10719 .cmd = NL80211_CMD_SET_MCAST_RATE,
10720 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10721 .policy = nl80211_policy,
10722 .flags = GENL_ADMIN_PERM,
10723 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10724 NL80211_FLAG_NEED_RTNL,
10725 },
10726 {
10727 .cmd = NL80211_CMD_SET_MAC_ACL,
10728 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10729 .policy = nl80211_policy,
10730 .flags = GENL_ADMIN_PERM,
10731 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10732 NL80211_FLAG_NEED_RTNL,
10733 },
04f39047
SW		 10734 {
10735 .cmd = NL80211_CMD_RADAR_DETECT,
10736 .doit = nl80211_start_radar_detection,
10737 .policy = nl80211_policy,
10738 .flags = GENL_ADMIN_PERM,
10739 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10740 NL80211_FLAG_NEED_RTNL,
10741 },
3713b4e3
JB		 10742 {
10743 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10744 .doit = nl80211_get_protocol_features,
10745 .policy = nl80211_policy,
10746 },
355199e0
JM		 10747 {
10748 .cmd = NL80211_CMD_UPDATE_FT_IES,
10749 .doit = nl80211_update_ft_ies,
10750 .policy = nl80211_policy,
10751 .flags = GENL_ADMIN_PERM,
10752 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10753 NL80211_FLAG_NEED_RTNL,
10754 },
5de17984
AS		 10755 {
10756 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10757 .doit = nl80211_crit_protocol_start,
10758 .policy = nl80211_policy,
10759 .flags = GENL_ADMIN_PERM,
10760 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10761 NL80211_FLAG_NEED_RTNL,
10762 },
10763 {
10764 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10765 .doit = nl80211_crit_protocol_stop,
10766 .policy = nl80211_policy,
10767 .flags = GENL_ADMIN_PERM,
10768 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10769 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10770 },
10771 {
10772 .cmd = NL80211_CMD_GET_COALESCE,
10773 .doit = nl80211_get_coalesce,
10774 .policy = nl80211_policy,
10775 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10776 NL80211_FLAG_NEED_RTNL,
10777 },
10778 {
10779 .cmd = NL80211_CMD_SET_COALESCE,
10780 .doit = nl80211_set_coalesce,
10781 .policy = nl80211_policy,
10782 .flags = GENL_ADMIN_PERM,
10783 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10784 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10785 },
10786 {
10787 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10788 .doit = nl80211_channel_switch,
10789 .policy = nl80211_policy,
10790 .flags = GENL_ADMIN_PERM,
10791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10792 NL80211_FLAG_NEED_RTNL,
10793 },
ad7e718c
JB		 10794 {
10795 .cmd = NL80211_CMD_VENDOR,
10796 .doit = nl80211_vendor_cmd,
10797 .policy = nl80211_policy,
10798 .flags = GENL_ADMIN_PERM,
10799 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10800 NL80211_FLAG_NEED_RTNL,
10801 },
fa9ffc74
KP		 10802 {
10803 .cmd = NL80211_CMD_SET_QOS_MAP,
10804 .doit = nl80211_set_qos_map,
10805 .policy = nl80211_policy,
10806 .flags = GENL_ADMIN_PERM,
10807 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10808 NL80211_FLAG_NEED_RTNL,
10809 },
960d01ac
JB		 10810 {
10811 .cmd = NL80211_CMD_ADD_TX_TS,
10812 .doit = nl80211_add_tx_ts,
10813 .policy = nl80211_policy,
10814 .flags = GENL_ADMIN_PERM,
10815 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10816 NL80211_FLAG_NEED_RTNL,
10817 },
10818 {
10819 .cmd = NL80211_CMD_DEL_TX_TS,
10820 .doit = nl80211_del_tx_ts,
10821 .policy = nl80211_policy,
10822 .flags = GENL_ADMIN_PERM,
10823 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10824 NL80211_FLAG_NEED_RTNL,
10825 },
1057d35e
AN		 10826 {
10827 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10828 .doit = nl80211_tdls_channel_switch,
10829 .policy = nl80211_policy,
10830 .flags = GENL_ADMIN_PERM,
10831 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10832 NL80211_FLAG_NEED_RTNL,
10833 },
10834 {
10835 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10836 .doit = nl80211_tdls_cancel_channel_switch,
10837 .policy = nl80211_policy,
10838 .flags = GENL_ADMIN_PERM,
10839 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10840 NL80211_FLAG_NEED_RTNL,
10841 },
55682965 10842};
9588bbd5 10843
55682965
JB		 10844/* notification functions */
10845
3bb20556
JB		 10846void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10847 enum nl80211_commands cmd)
55682965
JB		 10848{
10849 struct sk_buff *msg;
86e8cf98 10850 struct nl80211_dump_wiphy_state state = {};
55682965 10851
3bb20556
JB		 10852 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10853 cmd != NL80211_CMD_DEL_WIPHY);
10854
fd2120ca 10855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10856 if (!msg)
10857 return;
10858
3bb20556 10859 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10860 nlmsg_free(msg);
10861 return;
10862 }
10863
68eb5503 10864 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10865 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10866}
10867
362a415d
JB		 10868static int nl80211_add_scan_req(struct sk_buff *msg,
10869 struct cfg80211_registered_device *rdev)
10870{
10871 struct cfg80211_scan_request *req = rdev->scan_req;
10872 struct nlattr *nest;
10873 int i;
10874
10875 if (WARN_ON(!req))
10876 return 0;
10877
10878 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10879 if (!nest)
10880 goto nla_put_failure;
9360ffd1
DM		 10881 for (i = 0; i < req->n_ssids; i++) {
10882 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10883 goto nla_put_failure;
10884 }
362a415d
JB		 10885 nla_nest_end(msg, nest);
10886
10887 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10888 if (!nest)
10889 goto nla_put_failure;
9360ffd1
DM		 10890 for (i = 0; i < req->n_channels; i++) {
10891 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10892 goto nla_put_failure;
10893 }
362a415d
JB		 10894 nla_nest_end(msg, nest);
10895
9360ffd1
DM		 10896 if (req->ie &&
10897 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10898 goto nla_put_failure;
362a415d 10899
ae917c9f
JB		 10900 if (req->flags &&
10901 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10902 goto nla_put_failure;
ed473771 10903
362a415d
JB		 10904 return 0;
10905 nla_put_failure:
10906 return -ENOBUFS;
10907}
10908
a538e2d5
JB		 10909static int nl80211_send_scan_msg(struct sk_buff *msg,
10910 struct cfg80211_registered_device *rdev,
fd014284 10911 struct wireless_dev *wdev,
15e47304 10912 u32 portid, u32 seq, int flags,
a538e2d5 10913 u32 cmd)
2a519311
JB		 10914{
10915 void *hdr;
10916
15e47304 10917 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10918 if (!hdr)
10919 return -1;
10920
9360ffd1 10921 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10922 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10923 wdev->netdev->ifindex)) ||
10924 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10925 goto nla_put_failure;
2a519311 10926
362a415d
JB		 10927 /* ignore errors and send incomplete event anyway */
10928 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10929
10930 return genlmsg_end(msg, hdr);
10931
10932 nla_put_failure:
10933 genlmsg_cancel(msg, hdr);
10934 return -EMSGSIZE;
10935}
10936
807f8a8c
LC		 10937static int
10938nl80211_send_sched_scan_msg(struct sk_buff *msg,
10939 struct cfg80211_registered_device *rdev,
10940 struct net_device *netdev,
15e47304 10941 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10942{
10943 void *hdr;
10944
15e47304 10945 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10946 if (!hdr)
10947 return -1;
10948
9360ffd1
DM		 10949 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10950 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10951 goto nla_put_failure;
807f8a8c
LC		 10952
10953 return genlmsg_end(msg, hdr);
10954
10955 nla_put_failure:
10956 genlmsg_cancel(msg, hdr);
10957 return -EMSGSIZE;
10958}
10959
a538e2d5 10960void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10961 struct wireless_dev *wdev)
a538e2d5
JB		 10962{
10963 struct sk_buff *msg;
10964
58050fce 10965 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10966 if (!msg)
10967 return;
10968
fd014284 10969 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10970 NL80211_CMD_TRIGGER_SCAN) < 0) {
10971 nlmsg_free(msg);
10972 return;
10973 }
10974
68eb5503 10975 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10976 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10977}
10978
f9d15d16
JB		 10979struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10980 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10981{
10982 struct sk_buff *msg;
10983
fd2120ca 10984 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10985 if (!msg)
f9d15d16 10986 return NULL;
2a519311 10987
fd014284 10988 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10989 aborted ? NL80211_CMD_SCAN_ABORTED :
10990 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10991 nlmsg_free(msg);
f9d15d16 10992 return NULL;
2a519311
JB		 10993 }
10994
f9d15d16 10995 return msg;
2a519311
JB		 10996}
10997
f9d15d16
JB		 10998void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10999 struct sk_buff *msg)
2a519311 11000{
2a519311
JB		 11001 if (!msg)
11002 return;
11003
68eb5503 11004 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11005 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11006}
11007
807f8a8c
LC		 11008void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11009 struct net_device *netdev)
11010{
11011 struct sk_buff *msg;
11012
11013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11014 if (!msg)
11015 return;
11016
11017 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11018 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11019 nlmsg_free(msg);
11020 return;
11021 }
11022
68eb5503 11023 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11024 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11025}
11026
11027void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11028 struct net_device *netdev, u32 cmd)
11029{
11030 struct sk_buff *msg;
11031
58050fce 11032 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11033 if (!msg)
11034 return;
11035
11036 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11037 nlmsg_free(msg);
11038 return;
11039 }
11040
68eb5503 11041 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11042 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11043}
11044
b0d7aa59
JD		 11045static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11046 struct regulatory_request *request)
73d54c9e 11047{
73d54c9e 11048 /* Userspace can always count this one always being set */
9360ffd1
DM		 11049 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11050 goto nla_put_failure;
11051
11052 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11053 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11054 NL80211_REGDOM_TYPE_WORLD))
11055 goto nla_put_failure;
11056 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11057 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11058 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11059 goto nla_put_failure;
11060 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11061 request->intersect) {
11062 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11063 NL80211_REGDOM_TYPE_INTERSECTION))
11064 goto nla_put_failure;
11065 } else {
11066 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11067 NL80211_REGDOM_TYPE_COUNTRY) ||
11068 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11069 request->alpha2))
11070 goto nla_put_failure;
11071 }
11072
ad30ca2c
AN		 11073 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11074 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11075
11076 if (wiphy &&
11077 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11078 goto nla_put_failure;
11079 }
73d54c9e 11080
b0d7aa59
JD		 11081 return true;
11082
11083nla_put_failure:
11084 return false;
11085}
11086
11087/*
11088 * This can happen on global regulatory changes or device specific settings
11089 * based on custom regulatory domains.
11090 */
11091void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11092 struct regulatory_request *request)
11093{
11094 struct sk_buff *msg;
11095 void *hdr;
11096
11097 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11098 if (!msg)
11099 return;
11100
11101 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11102 if (!hdr) {
11103 nlmsg_free(msg);
11104 return;
11105 }
11106
11107 if (nl80211_reg_change_event_fill(msg, request) == false)
11108 goto nla_put_failure;
11109
3b7b72ee 11110 genlmsg_end(msg, hdr);
73d54c9e 11111
bc43b28c 11112 rcu_read_lock();
68eb5503 11113 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11114 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11115 rcu_read_unlock();
73d54c9e
LR		 11116
11117 return;
11118
11119nla_put_failure:
11120 genlmsg_cancel(msg, hdr);
11121 nlmsg_free(msg);
11122}
11123
6039f6d2
JM		 11124static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11125 struct net_device *netdev,
11126 const u8 *buf, size_t len,
b0b6aa2c
EP		 11127 enum nl80211_commands cmd, gfp_t gfp,
11128 int uapsd_queues)
6039f6d2
JM		 11129{
11130 struct sk_buff *msg;
11131 void *hdr;
11132
e6d6e342 11133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11134 if (!msg)
11135 return;
11136
11137 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11138 if (!hdr) {
11139 nlmsg_free(msg);
11140 return;
11141 }
11142
9360ffd1
DM		 11143 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11144 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11145 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11146 goto nla_put_failure;
6039f6d2 11147
b0b6aa2c
EP		 11148 if (uapsd_queues >= 0) {
11149 struct nlattr *nla_wmm =
11150 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11151 if (!nla_wmm)
11152 goto nla_put_failure;
11153
11154 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11155 uapsd_queues))
11156 goto nla_put_failure;
11157
11158 nla_nest_end(msg, nla_wmm);
11159 }
11160
3b7b72ee 11161 genlmsg_end(msg, hdr);
6039f6d2 11162
68eb5503 11163 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11164 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11165 return;
11166
11167 nla_put_failure:
11168 genlmsg_cancel(msg, hdr);
11169 nlmsg_free(msg);
11170}
11171
11172void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11173 struct net_device *netdev, const u8 *buf,
11174 size_t len, gfp_t gfp)
6039f6d2
JM		 11175{
11176 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11177 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11178}
11179
11180void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11181 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11182 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11183{
e6d6e342 11184 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11185 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11186}
11187
53b46b84 11188void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11189 struct net_device *netdev, const u8 *buf,
11190 size_t len, gfp_t gfp)
6039f6d2
JM		 11191{
11192 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11193 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11194}
11195
53b46b84
JM		 11196void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11197 struct net_device *netdev, const u8 *buf,
e6d6e342 11198 size_t len, gfp_t gfp)
6039f6d2
JM		 11199{
11200 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11201 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11202}
11203
6ff57cf8
JB		 11204void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11205 size_t len)
cf4e594e 11206{
947add36
JB		 11207 struct wireless_dev *wdev = dev->ieee80211_ptr;
11208 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11209 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11210 const struct ieee80211_mgmt *mgmt = (void *)buf;
11211 u32 cmd;
947add36 11212
6ff57cf8
JB		 11213 if (WARN_ON(len < 2))
11214 return;
cf4e594e 11215
6ff57cf8
JB		 11216 if (ieee80211_is_deauth(mgmt->frame_control))
11217 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11218 else
11219 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11220
6ff57cf8 11221 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11222 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11223}
6ff57cf8 11224EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11225
1b06bb40
LR		 11226static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11227 struct net_device *netdev, int cmd,
e6d6e342 11228 const u8 *addr, gfp_t gfp)
1965c853
JM		 11229{
11230 struct sk_buff *msg;
11231 void *hdr;
11232
e6d6e342 11233 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11234 if (!msg)
11235 return;
11236
11237 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11238 if (!hdr) {
11239 nlmsg_free(msg);
11240 return;
11241 }
11242
9360ffd1
DM		 11243 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11244 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11245 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11246 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11247 goto nla_put_failure;
1965c853 11248
3b7b72ee 11249 genlmsg_end(msg, hdr);
1965c853 11250
68eb5503 11251 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11252 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11253 return;
11254
11255 nla_put_failure:
11256 genlmsg_cancel(msg, hdr);
11257 nlmsg_free(msg);
11258}
11259
11260void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11261 struct net_device *netdev, const u8 *addr,
11262 gfp_t gfp)
1965c853
JM		 11263{
11264 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11265 addr, gfp);
1965c853
JM		 11266}
11267
11268void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11269 struct net_device *netdev, const u8 *addr,
11270 gfp_t gfp)
1965c853 11271{
e6d6e342
JB		 11272 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11273 addr, gfp);
1965c853
JM		 11274}
11275
b23aa676
SO		 11276void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11277 struct net_device *netdev, const u8 *bssid,
11278 const u8 *req_ie, size_t req_ie_len,
11279 const u8 *resp_ie, size_t resp_ie_len,
11280 u16 status, gfp_t gfp)
11281{
11282 struct sk_buff *msg;
11283 void *hdr;
11284
58050fce 11285 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11286 if (!msg)
11287 return;
11288
11289 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11290 if (!hdr) {
11291 nlmsg_free(msg);
11292 return;
11293 }
11294
9360ffd1
DM		 11295 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11296 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11297 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11298 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11299 (req_ie &&
11300 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11301 (resp_ie &&
11302 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11303 goto nla_put_failure;
b23aa676 11304
3b7b72ee 11305 genlmsg_end(msg, hdr);
b23aa676 11306
68eb5503 11307 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11308 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11309 return;
11310
11311 nla_put_failure:
11312 genlmsg_cancel(msg, hdr);
11313 nlmsg_free(msg);
11314
11315}
11316
11317void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11318 struct net_device *netdev, const u8 *bssid,
11319 const u8 *req_ie, size_t req_ie_len,
11320 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11321{
11322 struct sk_buff *msg;
11323 void *hdr;
11324
58050fce 11325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11326 if (!msg)
11327 return;
11328
11329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11330 if (!hdr) {
11331 nlmsg_free(msg);
11332 return;
11333 }
11334
9360ffd1
DM		 11335 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11336 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11337 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11338 (req_ie &&
11339 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11340 (resp_ie &&
11341 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11342 goto nla_put_failure;
b23aa676 11343
3b7b72ee 11344 genlmsg_end(msg, hdr);
b23aa676 11345
68eb5503 11346 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11347 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11348 return;
11349
11350 nla_put_failure:
11351 genlmsg_cancel(msg, hdr);
11352 nlmsg_free(msg);
11353
11354}
11355
11356void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11357 struct net_device *netdev, u16 reason,
667503dd 11358 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11359{
11360 struct sk_buff *msg;
11361 void *hdr;
11362
58050fce 11363 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11364 if (!msg)
11365 return;
11366
11367 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11368 if (!hdr) {
11369 nlmsg_free(msg);
11370 return;
11371 }
11372
9360ffd1
DM		 11373 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11374 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11375 (from_ap && reason &&
11376 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11377 (from_ap &&
11378 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11379 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11380 goto nla_put_failure;
b23aa676 11381
3b7b72ee 11382 genlmsg_end(msg, hdr);
b23aa676 11383
68eb5503 11384 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11385 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11386 return;
11387
11388 nla_put_failure:
11389 genlmsg_cancel(msg, hdr);
11390 nlmsg_free(msg);
11391
11392}
11393
04a773ad
JB		 11394void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11395 struct net_device *netdev, const u8 *bssid,
11396 gfp_t gfp)
11397{
11398 struct sk_buff *msg;
11399 void *hdr;
11400
fd2120ca 11401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11402 if (!msg)
11403 return;
11404
11405 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11406 if (!hdr) {
11407 nlmsg_free(msg);
11408 return;
11409 }
11410
9360ffd1
DM		 11411 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11412 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11413 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11414 goto nla_put_failure;
04a773ad 11415
3b7b72ee 11416 genlmsg_end(msg, hdr);
04a773ad 11417
68eb5503 11418 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11419 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11420 return;
11421
11422 nla_put_failure:
11423 genlmsg_cancel(msg, hdr);
11424 nlmsg_free(msg);
11425}
11426
947add36
JB		 11427void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11428 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11429{
947add36 11430 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11431 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11432 struct sk_buff *msg;
11433 void *hdr;
11434
947add36
JB		 11435 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11436 return;
11437
11438 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11439
c93b5e71
JC		 11440 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11441 if (!msg)
11442 return;
11443
11444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11445 if (!hdr) {
11446 nlmsg_free(msg);
11447 return;
11448 }
11449
9360ffd1 11450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11452 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11453 (ie_len && ie &&
11454 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11455 goto nla_put_failure;
c93b5e71 11456
3b7b72ee 11457 genlmsg_end(msg, hdr);
c93b5e71 11458
68eb5503 11459 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11460 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11461 return;
11462
11463 nla_put_failure:
11464 genlmsg_cancel(msg, hdr);
11465 nlmsg_free(msg);
11466}
947add36 11467EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11468
a3b8b056
JM		 11469void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11470 struct net_device *netdev, const u8 *addr,
11471 enum nl80211_key_type key_type, int key_id,
e6d6e342 11472 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11473{
11474 struct sk_buff *msg;
11475 void *hdr;
11476
e6d6e342 11477 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11478 if (!msg)
11479 return;
11480
11481 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11482 if (!hdr) {
11483 nlmsg_free(msg);
11484 return;
11485 }
11486
9360ffd1
DM		 11487 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11488 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11489 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11490 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11491 (key_id != -1 &&
11492 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11493 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11494 goto nla_put_failure;
a3b8b056 11495
3b7b72ee 11496 genlmsg_end(msg, hdr);
a3b8b056 11497
68eb5503 11498 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11499 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11500 return;
11501
11502 nla_put_failure:
11503 genlmsg_cancel(msg, hdr);
11504 nlmsg_free(msg);
11505}
11506
6bad8766
LR		 11507void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11508 struct ieee80211_channel *channel_before,
11509 struct ieee80211_channel *channel_after)
11510{
11511 struct sk_buff *msg;
11512 void *hdr;
11513 struct nlattr *nl_freq;
11514
fd2120ca 11515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11516 if (!msg)
11517 return;
11518
11519 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11520 if (!hdr) {
11521 nlmsg_free(msg);
11522 return;
11523 }
11524
11525 /*
11526 * Since we are applying the beacon hint to a wiphy we know its
11527 * wiphy_idx is valid
11528 */
9360ffd1
DM		 11529 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11530 goto nla_put_failure;
6bad8766
LR		 11531
11532 /* Before */
11533 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11534 if (!nl_freq)
11535 goto nla_put_failure;
cdc89b97 11536 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11537 goto nla_put_failure;
11538 nla_nest_end(msg, nl_freq);
11539
11540 /* After */
11541 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11542 if (!nl_freq)
11543 goto nla_put_failure;
cdc89b97 11544 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11545 goto nla_put_failure;
11546 nla_nest_end(msg, nl_freq);
11547
3b7b72ee 11548 genlmsg_end(msg, hdr);
6bad8766 11549
463d0183 11550 rcu_read_lock();
68eb5503 11551 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11552 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11553 rcu_read_unlock();
6bad8766
LR		 11554
11555 return;
11556
11557nla_put_failure:
11558 genlmsg_cancel(msg, hdr);
11559 nlmsg_free(msg);
11560}
11561
9588bbd5
JM		 11562static void nl80211_send_remain_on_chan_event(
11563 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11564 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11565 struct ieee80211_channel *chan,
9588bbd5
JM		 11566 unsigned int duration, gfp_t gfp)
11567{
11568 struct sk_buff *msg;
11569 void *hdr;
11570
11571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11572 if (!msg)
11573 return;
11574
11575 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11576 if (!hdr) {
11577 nlmsg_free(msg);
11578 return;
11579 }
11580
9360ffd1 11581 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11582 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11583 wdev->netdev->ifindex)) ||
00f53350 11584 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11585 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11586 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11587 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11588 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11589 goto nla_put_failure;
9588bbd5 11590
9360ffd1
DM		 11591 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11592 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11593 goto nla_put_failure;
9588bbd5 11594
3b7b72ee 11595 genlmsg_end(msg, hdr);
9588bbd5 11596
68eb5503 11597 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11598 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11599 return;
11600
11601 nla_put_failure:
11602 genlmsg_cancel(msg, hdr);
11603 nlmsg_free(msg);
11604}
11605
947add36
JB		 11606void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11607 struct ieee80211_channel *chan,
11608 unsigned int duration, gfp_t gfp)
9588bbd5 11609{
947add36 11610 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11611 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11612
11613 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11614 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11615 rdev, wdev, cookie, chan,
42d97a59 11616 duration, gfp);
9588bbd5 11617}
947add36 11618EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11619
947add36
JB		 11620void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11621 struct ieee80211_channel *chan,
11622 gfp_t gfp)
9588bbd5 11623{
947add36 11624 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11625 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11626
11627 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11628 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11629 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11630}
947add36 11631EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11632
947add36
JB		 11633void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11634 struct station_info *sinfo, gfp_t gfp)
98b62183 11635{
947add36 11636 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11637 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11638 struct sk_buff *msg;
11639
947add36
JB		 11640 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11641
58050fce 11642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11643 if (!msg)
11644 return;
11645
66266b3a
JL		 11646 if (nl80211_send_station(msg, 0, 0, 0,
11647 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11648 nlmsg_free(msg);
11649 return;
11650 }
11651
68eb5503 11652 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11653 NL80211_MCGRP_MLME, gfp);
98b62183 11654}
947add36 11655EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11656
947add36 11657void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11658{
947add36 11659 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11660 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11661 struct sk_buff *msg;
11662 void *hdr;
11663
947add36
JB		 11664 trace_cfg80211_del_sta(dev, mac_addr);
11665
58050fce 11666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11667 if (!msg)
11668 return;
11669
11670 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11671 if (!hdr) {
11672 nlmsg_free(msg);
11673 return;
11674 }
11675
9360ffd1
DM		 11676 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11677 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11678 goto nla_put_failure;
ec15e68b 11679
3b7b72ee 11680 genlmsg_end(msg, hdr);
ec15e68b 11681
68eb5503 11682 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11683 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11684 return;
11685
11686 nla_put_failure:
11687 genlmsg_cancel(msg, hdr);
11688 nlmsg_free(msg);
11689}
947add36 11690EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11691
947add36
JB		 11692void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11693 enum nl80211_connect_failed_reason reason,
11694 gfp_t gfp)
ed44a951 11695{
947add36 11696 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11697 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11698 struct sk_buff *msg;
11699 void *hdr;
11700
11701 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11702 if (!msg)
11703 return;
11704
11705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11706 if (!hdr) {
11707 nlmsg_free(msg);
11708 return;
11709 }
11710
11711 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11712 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11713 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11714 goto nla_put_failure;
11715
11716 genlmsg_end(msg, hdr);
11717
68eb5503 11718 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11719 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11720 return;
11721
11722 nla_put_failure:
11723 genlmsg_cancel(msg, hdr);
11724 nlmsg_free(msg);
11725}
947add36 11726EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11727
b92ab5d8
JB		 11728static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11729 const u8 *addr, gfp_t gfp)
28946da7
JB		 11730{
11731 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11732 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11733 struct sk_buff *msg;
11734 void *hdr;
15e47304 11735 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11736
15e47304 11737 if (!nlportid)
28946da7
JB		 11738 return false;
11739
11740 msg = nlmsg_new(100, gfp);
11741 if (!msg)
11742 return true;
11743
b92ab5d8 11744 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11745 if (!hdr) {
11746 nlmsg_free(msg);
11747 return true;
11748 }
11749
9360ffd1
DM		 11750 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11751 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11752 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11753 goto nla_put_failure;
28946da7 11754
9c90a9f6 11755 genlmsg_end(msg, hdr);
15e47304 11756 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11757 return true;
11758
11759 nla_put_failure:
11760 genlmsg_cancel(msg, hdr);
11761 nlmsg_free(msg);
11762 return true;
11763}
11764
947add36
JB		 11765bool cfg80211_rx_spurious_frame(struct net_device *dev,
11766 const u8 *addr, gfp_t gfp)
b92ab5d8 11767{
947add36
JB		 11768 struct wireless_dev *wdev = dev->ieee80211_ptr;
11769 bool ret;
11770
11771 trace_cfg80211_rx_spurious_frame(dev, addr);
11772
11773 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11774 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11775 trace_cfg80211_return_bool(false);
11776 return false;
11777 }
11778 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11779 addr, gfp);
11780 trace_cfg80211_return_bool(ret);
11781 return ret;
b92ab5d8 11782}
947add36 11783EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11784
947add36
JB		 11785bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11786 const u8 *addr, gfp_t gfp)
b92ab5d8 11787{
947add36
JB		 11788 struct wireless_dev *wdev = dev->ieee80211_ptr;
11789 bool ret;
11790
11791 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11792
11793 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11794 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11795 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11796 trace_cfg80211_return_bool(false);
11797 return false;
11798 }
11799 ret = __nl80211_unexpected_frame(dev,
11800 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11801 addr, gfp);
11802 trace_cfg80211_return_bool(ret);
11803 return ret;
b92ab5d8 11804}
947add36 11805EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11806
2e161f78 11807int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11808 struct wireless_dev *wdev, u32 nlportid,
804483e9 11809 int freq, int sig_dbm,
19504cf5 11810 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11811{
71bbc994 11812 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11813 struct sk_buff *msg;
11814 void *hdr;
026331c4
JM		 11815
11816 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11817 if (!msg)
11818 return -ENOMEM;
11819
2e161f78 11820 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11821 if (!hdr) {
11822 nlmsg_free(msg);
11823 return -ENOMEM;
11824 }
11825
9360ffd1 11826 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11827 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11828 netdev->ifindex)) ||
a838490b 11829 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11830 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11831 (sig_dbm &&
11832 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11833 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11834 (flags &&
11835 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11836 goto nla_put_failure;
026331c4 11837
3b7b72ee 11838 genlmsg_end(msg, hdr);
026331c4 11839
15e47304 11840 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11841
11842 nla_put_failure:
11843 genlmsg_cancel(msg, hdr);
11844 nlmsg_free(msg);
11845 return -ENOBUFS;
11846}
11847
947add36
JB		 11848void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11849 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11850{
947add36 11851 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11852 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11853 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11854 struct sk_buff *msg;
11855 void *hdr;
11856
947add36
JB		 11857 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11858
026331c4
JM		 11859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11860 if (!msg)
11861 return;
11862
2e161f78 11863 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11864 if (!hdr) {
11865 nlmsg_free(msg);
11866 return;
11867 }
11868
9360ffd1 11869 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11870 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11871 netdev->ifindex)) ||
a838490b 11872 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11873 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11874 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11875 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11876 goto nla_put_failure;
026331c4 11877
3b7b72ee 11878 genlmsg_end(msg, hdr);
026331c4 11879
68eb5503 11880 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11881 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11882 return;
11883
11884 nla_put_failure:
11885 genlmsg_cancel(msg, hdr);
11886 nlmsg_free(msg);
11887}
947add36 11888EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11889
5b97f49d
JB		 11890static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
11891 const char *mac, gfp_t gfp)
d6dc1a38 11892{
947add36 11893 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 11894 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11895 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11896 void **cb;
947add36 11897
d6dc1a38 11898 if (!msg)
5b97f49d 11899 return NULL;
d6dc1a38 11900
5b97f49d
JB		 11901 cb = (void **)msg->cb;
11902
11903 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11904 if (!cb[0]) {
d6dc1a38 11905 nlmsg_free(msg);
5b97f49d 11906 return NULL;
d6dc1a38
JO		 11907 }
11908
9360ffd1 11909 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11910 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11911 goto nla_put_failure;
d6dc1a38 11912
5b97f49d 11913 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 11914 goto nla_put_failure;
11915
5b97f49d
JB		 11916 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
11917 if (!cb[1])
9360ffd1 11918 goto nla_put_failure;
d6dc1a38 11919
5b97f49d 11920 cb[2] = rdev;
d6dc1a38 11921
5b97f49d
JB		 11922 return msg;
11923 nla_put_failure:
11924 nlmsg_free(msg);
11925 return NULL;
11926}
11927
11928static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
11929{
11930 void **cb = (void **)msg->cb;
11931 struct cfg80211_registered_device *rdev = cb[2];
11932
11933 nla_nest_end(msg, cb[1]);
11934 genlmsg_end(msg, cb[0]);
11935
11936 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 11937
68eb5503 11938 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11939 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 11940}
11941
11942void cfg80211_cqm_rssi_notify(struct net_device *dev,
11943 enum nl80211_cqm_rssi_threshold_event rssi_event,
11944 gfp_t gfp)
11945{
11946 struct sk_buff *msg;
11947
11948 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11949
98f03342
JB		 11950 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
11951 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
11952 return;
11953
5b97f49d
JB		 11954 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
11955 if (!msg)
11956 return;
11957
11958 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11959 rssi_event))
11960 goto nla_put_failure;
11961
11962 cfg80211_send_cqm(msg, gfp);
11963
d6dc1a38
JO		 11964 return;
11965
11966 nla_put_failure:
d6dc1a38
JO		 11967 nlmsg_free(msg);
11968}
947add36 11969EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11970
5b97f49d
JB		 11971void cfg80211_cqm_txe_notify(struct net_device *dev,
11972 const u8 *peer, u32 num_packets,
11973 u32 rate, u32 intvl, gfp_t gfp)
11974{
11975 struct sk_buff *msg;
11976
11977 msg = cfg80211_prepare_cqm(dev, peer, gfp);
11978 if (!msg)
11979 return;
11980
11981 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11982 goto nla_put_failure;
11983
11984 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11985 goto nla_put_failure;
11986
11987 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11988 goto nla_put_failure;
11989
11990 cfg80211_send_cqm(msg, gfp);
11991 return;
11992
11993 nla_put_failure:
11994 nlmsg_free(msg);
11995}
11996EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11997
11998void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11999 const u8 *peer, u32 num_packets, gfp_t gfp)
12000{
12001 struct sk_buff *msg;
12002
12003 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12004
12005 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12006 if (!msg)
12007 return;
12008
12009 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12010 goto nla_put_failure;
12011
12012 cfg80211_send_cqm(msg, gfp);
12013 return;
12014
12015 nla_put_failure:
12016 nlmsg_free(msg);
12017}
12018EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12019
98f03342
JB		 12020void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12021{
12022 struct sk_buff *msg;
12023
12024 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12025 if (!msg)
12026 return;
12027
12028 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12029 goto nla_put_failure;
12030
12031 cfg80211_send_cqm(msg, gfp);
12032 return;
12033
12034 nla_put_failure:
12035 nlmsg_free(msg);
12036}
12037EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12038
947add36
JB		 12039static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12040 struct net_device *netdev, const u8 *bssid,
12041 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12042{
12043 struct sk_buff *msg;
12044 struct nlattr *rekey_attr;
12045 void *hdr;
12046
58050fce 12047 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12048 if (!msg)
12049 return;
12050
12051 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12052 if (!hdr) {
12053 nlmsg_free(msg);
12054 return;
12055 }
12056
9360ffd1
DM		 12057 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12058 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12059 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12060 goto nla_put_failure;
e5497d76
JB		 12061
12062 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12063 if (!rekey_attr)
12064 goto nla_put_failure;
12065
9360ffd1
DM		 12066 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12067 NL80211_REPLAY_CTR_LEN, replay_ctr))
12068 goto nla_put_failure;
e5497d76
JB		 12069
12070 nla_nest_end(msg, rekey_attr);
12071
3b7b72ee 12072 genlmsg_end(msg, hdr);
e5497d76 12073
68eb5503 12074 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12075 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12076 return;
12077
12078 nla_put_failure:
12079 genlmsg_cancel(msg, hdr);
12080 nlmsg_free(msg);
12081}
12082
947add36
JB		 12083void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12084 const u8 *replay_ctr, gfp_t gfp)
12085{
12086 struct wireless_dev *wdev = dev->ieee80211_ptr;
12087 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12088 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12089
12090 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12091 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12092}
12093EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12094
12095static void
12096nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12097 struct net_device *netdev, int index,
12098 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12099{
12100 struct sk_buff *msg;
12101 struct nlattr *attr;
12102 void *hdr;
12103
58050fce 12104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12105 if (!msg)
12106 return;
12107
12108 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12109 if (!hdr) {
12110 nlmsg_free(msg);
12111 return;
12112 }
12113
9360ffd1
DM		 12114 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12115 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12116 goto nla_put_failure;
c9df56b4
JM		 12117
12118 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12119 if (!attr)
12120 goto nla_put_failure;
12121
9360ffd1
DM		 12122 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12123 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12124 (preauth &&
12125 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12126 goto nla_put_failure;
c9df56b4
JM		 12127
12128 nla_nest_end(msg, attr);
12129
3b7b72ee 12130 genlmsg_end(msg, hdr);
c9df56b4 12131
68eb5503 12132 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12133 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12134 return;
12135
12136 nla_put_failure:
12137 genlmsg_cancel(msg, hdr);
12138 nlmsg_free(msg);
12139}
12140
947add36
JB		 12141void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12142 const u8 *bssid, bool preauth, gfp_t gfp)
12143{
12144 struct wireless_dev *wdev = dev->ieee80211_ptr;
12145 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12146 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12147
12148 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12149 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12150}
12151EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12152
12153static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12154 struct net_device *netdev,
12155 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12156 gfp_t gfp,
12157 enum nl80211_commands notif,
12158 u8 count)
5314526b
TP		 12159{
12160 struct sk_buff *msg;
12161 void *hdr;
12162
58050fce 12163 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12164 if (!msg)
12165 return;
12166
f8d7552e 12167 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12168 if (!hdr) {
12169 nlmsg_free(msg);
12170 return;
12171 }
12172
683b6d3b
JB		 12173 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12174 goto nla_put_failure;
12175
12176 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12177 goto nla_put_failure;
5314526b 12178
f8d7552e
LC		 12179 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12180 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12181 goto nla_put_failure;
12182
5314526b
TP		 12183 genlmsg_end(msg, hdr);
12184
68eb5503 12185 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12186 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12187 return;
12188
12189 nla_put_failure:
12190 genlmsg_cancel(msg, hdr);
12191 nlmsg_free(msg);
12192}
12193
947add36
JB		 12194void cfg80211_ch_switch_notify(struct net_device *dev,
12195 struct cfg80211_chan_def *chandef)
84f10708 12196{
947add36
JB		 12197 struct wireless_dev *wdev = dev->ieee80211_ptr;
12198 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12199 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12200
e487eaeb 12201 ASSERT_WDEV_LOCK(wdev);
947add36 12202
e487eaeb 12203 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12204
9e0e2961 12205 wdev->chandef = *chandef;
96f55f12 12206 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12207 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12208 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12209}
12210EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12211
f8d7552e
LC		 12212void cfg80211_ch_switch_started_notify(struct net_device *dev,
12213 struct cfg80211_chan_def *chandef,
12214 u8 count)
12215{
12216 struct wireless_dev *wdev = dev->ieee80211_ptr;
12217 struct wiphy *wiphy = wdev->wiphy;
12218 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12219
12220 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12221
12222 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12223 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12224}
12225EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12226
04f39047
SW		 12227void
12228nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12229 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12230 enum nl80211_radar_event event,
12231 struct net_device *netdev, gfp_t gfp)
12232{
12233 struct sk_buff *msg;
12234 void *hdr;
12235
12236 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12237 if (!msg)
12238 return;
12239
12240 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12241 if (!hdr) {
12242 nlmsg_free(msg);
12243 return;
12244 }
12245
12246 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12247 goto nla_put_failure;
12248
12249 /* NOP and radar events don't need a netdev parameter */
12250 if (netdev) {
12251 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12252
12253 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12254 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12255 goto nla_put_failure;
12256 }
12257
12258 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12259 goto nla_put_failure;
12260
12261 if (nl80211_send_chandef(msg, chandef))
12262 goto nla_put_failure;
12263
9c90a9f6 12264 genlmsg_end(msg, hdr);
04f39047 12265
68eb5503 12266 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12267 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12268 return;
12269
12270 nla_put_failure:
12271 genlmsg_cancel(msg, hdr);
12272 nlmsg_free(msg);
12273}
12274
7f6cf311
JB		 12275void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12276 u64 cookie, bool acked, gfp_t gfp)
12277{
12278 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12279 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12280 struct sk_buff *msg;
12281 void *hdr;
7f6cf311 12282
4ee3e063
BL		 12283 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12284
58050fce 12285 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12286
7f6cf311
JB		 12287 if (!msg)
12288 return;
12289
12290 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12291 if (!hdr) {
12292 nlmsg_free(msg);
12293 return;
12294 }
12295
9360ffd1
DM		 12296 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12297 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12298 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12299 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12300 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12301 goto nla_put_failure;
7f6cf311 12302
9c90a9f6 12303 genlmsg_end(msg, hdr);
7f6cf311 12304
68eb5503 12305 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12306 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12307 return;
12308
12309 nla_put_failure:
12310 genlmsg_cancel(msg, hdr);
12311 nlmsg_free(msg);
12312}
12313EXPORT_SYMBOL(cfg80211_probe_status);
12314
5e760230
JB		 12315void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12316 const u8 *frame, size_t len,
37c73b5f 12317 int freq, int sig_dbm)
5e760230 12318{
f26cbf40 12319 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12320 struct sk_buff *msg;
12321 void *hdr;
37c73b5f 12322 struct cfg80211_beacon_registration *reg;
5e760230 12323
4ee3e063
BL		 12324 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12325
37c73b5f
BG		 12326 spin_lock_bh(&rdev->beacon_registrations_lock);
12327 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12328 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12329 if (!msg) {
12330 spin_unlock_bh(&rdev->beacon_registrations_lock);
12331 return;
12332 }
5e760230 12333
37c73b5f
BG		 12334 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12335 if (!hdr)
12336 goto nla_put_failure;
5e760230 12337
37c73b5f
BG		 12338 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12339 (freq &&
12340 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12341 (sig_dbm &&
12342 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12343 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12344 goto nla_put_failure;
5e760230 12345
37c73b5f 12346 genlmsg_end(msg, hdr);
5e760230 12347
37c73b5f
BG		 12348 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12349 }
12350 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12351 return;
12352
12353 nla_put_failure:
37c73b5f
BG		 12354 spin_unlock_bh(&rdev->beacon_registrations_lock);
12355 if (hdr)
12356 genlmsg_cancel(msg, hdr);
5e760230
JB		 12357 nlmsg_free(msg);
12358}
12359EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12360
cd8f7cb4 12361#ifdef CONFIG_PM
8cd4d456
LC		 12362static int cfg80211_net_detect_results(struct sk_buff *msg,
12363 struct cfg80211_wowlan_wakeup *wakeup)
12364{
12365 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12366 struct nlattr *nl_results, *nl_match, *nl_freqs;
12367 int i, j;
12368
12369 nl_results = nla_nest_start(
12370 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12371 if (!nl_results)
12372 return -EMSGSIZE;
12373
12374 for (i = 0; i < nd->n_matches; i++) {
12375 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12376
12377 nl_match = nla_nest_start(msg, i);
12378 if (!nl_match)
12379 break;
12380
12381 /* The SSID attribute is optional in nl80211, but for
12382 * simplicity reasons it's always present in the
12383 * cfg80211 structure. If a driver can't pass the
12384 * SSID, that needs to be changed. A zero length SSID
12385 * is still a valid SSID (wildcard), so it cannot be
12386 * used for this purpose.
12387 */
12388 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12389 match->ssid.ssid)) {
12390 nla_nest_cancel(msg, nl_match);
12391 goto out;
12392 }
12393
12394 if (match->n_channels) {
12395 nl_freqs = nla_nest_start(
12396 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12397 if (!nl_freqs) {
12398 nla_nest_cancel(msg, nl_match);
12399 goto out;
12400 }
12401
12402 for (j = 0; j < match->n_channels; j++) {
12403 if (nla_put_u32(msg,
12404 NL80211_ATTR_WIPHY_FREQ,
12405 match->channels[j])) {
12406 nla_nest_cancel(msg, nl_freqs);
12407 nla_nest_cancel(msg, nl_match);
12408 goto out;
12409 }
12410 }
12411
12412 nla_nest_end(msg, nl_freqs);
12413 }
12414
12415 nla_nest_end(msg, nl_match);
12416 }
12417
12418out:
12419 nla_nest_end(msg, nl_results);
12420 return 0;
12421}
12422
cd8f7cb4
JB		 12423void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12424 struct cfg80211_wowlan_wakeup *wakeup,
12425 gfp_t gfp)
12426{
f26cbf40 12427 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12428 struct sk_buff *msg;
12429 void *hdr;
9c90a9f6 12430 int size = 200;
cd8f7cb4
JB		 12431
12432 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12433
12434 if (wakeup)
12435 size += wakeup->packet_present_len;
12436
12437 msg = nlmsg_new(size, gfp);
12438 if (!msg)
12439 return;
12440
12441 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12442 if (!hdr)
12443 goto free_msg;
12444
12445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12446 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12447 goto free_msg;
12448
12449 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12450 wdev->netdev->ifindex))
12451 goto free_msg;
12452
12453 if (wakeup) {
12454 struct nlattr *reasons;
12455
12456 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12457 if (!reasons)
12458 goto free_msg;
cd8f7cb4
JB		 12459
12460 if (wakeup->disconnect &&
12461 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12462 goto free_msg;
12463 if (wakeup->magic_pkt &&
12464 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12465 goto free_msg;
12466 if (wakeup->gtk_rekey_failure &&
12467 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12468 goto free_msg;
12469 if (wakeup->eap_identity_req &&
12470 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12471 goto free_msg;
12472 if (wakeup->four_way_handshake &&
12473 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12474 goto free_msg;
12475 if (wakeup->rfkill_release &&
12476 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12477 goto free_msg;
12478
12479 if (wakeup->pattern_idx >= 0 &&
12480 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12481 wakeup->pattern_idx))
12482 goto free_msg;
12483
ae917c9f
JB		 12484 if (wakeup->tcp_match &&
12485 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12486 goto free_msg;
2a0e047e 12487
ae917c9f
JB		 12488 if (wakeup->tcp_connlost &&
12489 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12490 goto free_msg;
2a0e047e 12491
ae917c9f
JB		 12492 if (wakeup->tcp_nomoretokens &&
12493 nla_put_flag(msg,
12494 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12495 goto free_msg;
2a0e047e 12496
cd8f7cb4
JB		 12497 if (wakeup->packet) {
12498 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12499 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12500
12501 if (!wakeup->packet_80211) {
12502 pkt_attr =
12503 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12504 len_attr =
12505 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12506 }
12507
12508 if (wakeup->packet_len &&
12509 nla_put_u32(msg, len_attr, wakeup->packet_len))
12510 goto free_msg;
12511
12512 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12513 wakeup->packet))
12514 goto free_msg;
12515 }
12516
8cd4d456
LC		 12517 if (wakeup->net_detect &&
12518 cfg80211_net_detect_results(msg, wakeup))
12519 goto free_msg;
12520
cd8f7cb4
JB		 12521 nla_nest_end(msg, reasons);
12522 }
12523
9c90a9f6 12524 genlmsg_end(msg, hdr);
cd8f7cb4 12525
68eb5503 12526 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12527 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12528 return;
12529
12530 free_msg:
12531 nlmsg_free(msg);
12532}
12533EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12534#endif
12535
3475b094
JM		 12536void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12537 enum nl80211_tdls_operation oper,
12538 u16 reason_code, gfp_t gfp)
12539{
12540 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12541 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12542 struct sk_buff *msg;
12543 void *hdr;
3475b094
JM		 12544
12545 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12546 reason_code);
12547
12548 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12549 if (!msg)
12550 return;
12551
12552 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12553 if (!hdr) {
12554 nlmsg_free(msg);
12555 return;
12556 }
12557
12558 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12559 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12560 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12561 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12562 (reason_code > 0 &&
12563 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12564 goto nla_put_failure;
12565
9c90a9f6 12566 genlmsg_end(msg, hdr);
3475b094 12567
68eb5503 12568 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12569 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12570 return;
12571
12572 nla_put_failure:
12573 genlmsg_cancel(msg, hdr);
12574 nlmsg_free(msg);
12575}
12576EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12577
026331c4
JM		 12578static int nl80211_netlink_notify(struct notifier_block * nb,
12579 unsigned long state,
12580 void *_notify)
12581{
12582 struct netlink_notify *notify = _notify;
12583 struct cfg80211_registered_device *rdev;
12584 struct wireless_dev *wdev;
37c73b5f 12585 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12586
12587 if (state != NETLINK_URELEASE)
12588 return NOTIFY_DONE;
12589
12590 rcu_read_lock();
12591
5e760230 12592 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 12593 bool schedule_destroy_work = false;
12594
12595 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12596 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12597
78f22b6a
JB		 12598 if (wdev->owner_nlportid == notify->portid)
12599 schedule_destroy_work = true;
12600 }
12601
37c73b5f
BG		 12602 spin_lock_bh(&rdev->beacon_registrations_lock);
12603 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12604 list) {
12605 if (reg->nlportid == notify->portid) {
12606 list_del(&reg->list);
12607 kfree(reg);
12608 break;
12609 }
12610 }
12611 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12612
12613 if (schedule_destroy_work) {
12614 struct cfg80211_iface_destroy *destroy;
12615
12616 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12617 if (destroy) {
12618 destroy->nlportid = notify->portid;
12619 spin_lock(&rdev->destroy_list_lock);
12620 list_add(&destroy->list, &rdev->destroy_list);
12621 spin_unlock(&rdev->destroy_list_lock);
12622 schedule_work(&rdev->destroy_work);
12623 }
12624 }
5e760230 12625 }
026331c4
JM		 12626
12627 rcu_read_unlock();
12628
6784c7db 12629 return NOTIFY_OK;
026331c4
JM		 12630}
12631
12632static struct notifier_block nl80211_netlink_notifier = {
12633 .notifier_call = nl80211_netlink_notify,
12634};
12635
355199e0
JM		 12636void cfg80211_ft_event(struct net_device *netdev,
12637 struct cfg80211_ft_event_params *ft_event)
12638{
12639 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12640 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12641 struct sk_buff *msg;
12642 void *hdr;
355199e0
JM		 12643
12644 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12645
12646 if (!ft_event->target_ap)
12647 return;
12648
12649 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12650 if (!msg)
12651 return;
12652
12653 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12654 if (!hdr)
12655 goto out;
355199e0 12656
ae917c9f
JB		 12657 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12658 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12659 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12660 goto out;
355199e0 12661
ae917c9f
JB		 12662 if (ft_event->ies &&
12663 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12664 goto out;
12665 if (ft_event->ric_ies &&
12666 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12667 ft_event->ric_ies))
12668 goto out;
355199e0 12669
9c90a9f6 12670 genlmsg_end(msg, hdr);
355199e0 12671
68eb5503 12672 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12673 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12674 return;
12675 out:
12676 nlmsg_free(msg);
355199e0
JM		 12677}
12678EXPORT_SYMBOL(cfg80211_ft_event);
12679
5de17984
AS		 12680void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12681{
12682 struct cfg80211_registered_device *rdev;
12683 struct sk_buff *msg;
12684 void *hdr;
12685 u32 nlportid;
12686
f26cbf40 12687 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12688 if (!rdev->crit_proto_nlportid)
12689 return;
12690
12691 nlportid = rdev->crit_proto_nlportid;
12692 rdev->crit_proto_nlportid = 0;
12693
12694 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12695 if (!msg)
12696 return;
12697
12698 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12699 if (!hdr)
12700 goto nla_put_failure;
12701
12702 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12703 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12704 goto nla_put_failure;
12705
12706 genlmsg_end(msg, hdr);
12707
12708 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12709 return;
12710
12711 nla_put_failure:
12712 if (hdr)
12713 genlmsg_cancel(msg, hdr);
12714 nlmsg_free(msg);
12715
12716}
12717EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12718
348baf0e
JB		 12719void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12720{
12721 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12722 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12723 struct sk_buff *msg;
12724 void *hdr;
12725
12726 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12727 if (!msg)
12728 return;
12729
12730 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12731 if (!hdr)
12732 goto out;
12733
12734 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12735 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12736 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12737 goto out;
12738
12739 genlmsg_end(msg, hdr);
12740
12741 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12742 NL80211_MCGRP_MLME, GFP_KERNEL);
12743 return;
12744 out:
12745 nlmsg_free(msg);
12746}
12747
55682965
JB		 12748/* initialisation/exit functions */
12749
12750int nl80211_init(void)
12751{
0d63cbb5 12752 int err;
55682965 12753
2a94fe48
JB		 12754 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12755 nl80211_mcgrps);
55682965
JB		 12756 if (err)
12757 return err;
12758
026331c4
JM		 12759 err = netlink_register_notifier(&nl80211_netlink_notifier);
12760 if (err)
12761 goto err_out;
12762
55682965
JB		 12763 return 0;
12764 err_out:
12765 genl_unregister_family(&nl80211_fam);
12766 return err;
12767}
12768
12769void nl80211_exit(void)
12770{
026331c4 12771 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12772 genl_unregister_family(&nl80211_fam);
12773}
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