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nl80211: document NL80211_BSS_STATUS_AUTHENTICATED isn't used
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
55682965
JB		 6 */
7
8#include <linux/if.h>
9#include <linux/module.h>
10#include <linux/err.h>
5a0e3ad6 11#include <linux/slab.h>
55682965
JB		 12#include <linux/list.h>
13#include <linux/if_ether.h>
14#include <linux/ieee80211.h>
15#include <linux/nl80211.h>
16#include <linux/rtnetlink.h>
17#include <linux/netlink.h>
2a519311 18#include <linux/etherdevice.h>
463d0183 19#include <net/net_namespace.h>
55682965
JB		 20#include <net/genetlink.h>
21#include <net/cfg80211.h>
463d0183 22#include <net/sock.h>
2a0e047e 23#include <net/inet_connection_sock.h>
55682965
JB		 24#include "core.h"
25#include "nl80211.h"
b2e1b302 26#include "reg.h"
e35e4d28 27#include "rdev-ops.h"
55682965 28
5fb628e9
JM		 29static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
32 int cipher_limit);
33
f84f771d 34static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 35 struct genl_info *info);
f84f771d 36static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 37 struct genl_info *info);
38
55682965
JB		 39/* the netlink family */
40static struct genl_family nl80211_fam = {
fb4e1568
MH		 41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
55682965 45 .maxattr = NL80211_ATTR_MAX,
463d0183 46 .netnsok = true,
4c476991
JB		 47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
55682965
JB		 49};
50
2a94fe48
JB		 51/* multicast groups */
52enum nl80211_multicast_groups {
53 NL80211_MCGRP_CONFIG,
54 NL80211_MCGRP_SCAN,
55 NL80211_MCGRP_REGULATORY,
56 NL80211_MCGRP_MLME,
567ffc35 57 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
59};
60
61static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 67#ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
69#endif
70};
71
89a54e48
JB		 72/* returns ERR_PTR values */
73static struct wireless_dev *
74__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 75{
89a54e48
JB		 76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
80 u64 wdev_id;
81 int wiphy_idx = -1;
82 int ifidx = -1;
55682965 83
5fe231e8 84 ASSERT_RTNL();
55682965 85
89a54e48
JB		 86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
55682965 88
89a54e48
JB		 89 if (have_ifidx)
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 if (have_wdev_id) {
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
55682965
JB		 94 }
95
89a54e48
JB		 96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
98
99 if (wiphy_net(&rdev->wiphy) != netns)
100 continue;
101
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
103 continue;
104
89a54e48
JB		 105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
108 result = wdev;
109 break;
110 }
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 result = wdev;
113 break;
114 }
115 }
89a54e48
JB		 116
117 if (result)
118 break;
119 }
120
121 if (result)
122 return result;
123 return ERR_PTR(-ENODEV);
55682965
JB		 124}
125
a9455408 126static struct cfg80211_registered_device *
878d9ec7 127__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 128{
7fee4778
JB		 129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
a9455408 131
5fe231e8 132 ASSERT_RTNL();
a9455408 133
878d9ec7 134 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 137 return ERR_PTR(-EINVAL);
138
878d9ec7 139 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 140 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 142
89a54e48
JB		 143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
146 bool found = false;
147
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 if (tmp) {
150 /* make sure wdev exists */
89a54e48
JB		 151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
153 continue;
154 found = true;
155 break;
156 }
89a54e48
JB		 157
158 if (!found)
159 tmp = NULL;
160
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
163 rdev = tmp;
164 }
165 }
166
878d9ec7
JB		 167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 169 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 170 if (netdev) {
171 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 172 tmp = wiphy_to_rdev(
173 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 174 else
175 tmp = NULL;
176
7fee4778
JB		 177 /* not wireless device -- return error */
178 if (!tmp)
179 return ERR_PTR(-EINVAL);
180
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
184
185 rdev = tmp;
a9455408 186 }
a9455408 187 }
a9455408 188
4f7eff10
JB		 189 if (!rdev)
190 return ERR_PTR(-ENODEV);
a9455408 191
4f7eff10
JB		 192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
194
195 return rdev;
a9455408
JB		 196}
197
198/*
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
a9455408
JB		 201 *
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
204 */
205static struct cfg80211_registered_device *
4f7eff10 206cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 207{
5fe231e8 208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209}
210
55682965 211/* policy for the attributes */
8cd4d456 212static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 391 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 398 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 399 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
55682965
JB		 400};
401
e31b8213 402/* policy for the key attributes */
b54452b0 403static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 404 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 405 [NL80211_KEY_IDX] = { .type = NLA_U8 },
406 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 407 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 408 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
409 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 410 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 411 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
412};
413
414/* policy for the key default flags */
415static const struct nla_policy
416nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
417 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
418 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 419};
420
ff1b6e69
JB		 421/* policy for WoWLAN attributes */
422static const struct nla_policy
423nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
424 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
426 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 428 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 432 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 433 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 434};
435
436static const struct nla_policy
437nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
438 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
440 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
441 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
442 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
443 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
444 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
445 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
446 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
448 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
449 },
450 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
452 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 453};
454
be29b99a
AK		 455/* policy for coalesce rule attributes */
456static const struct nla_policy
457nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
458 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
459 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
460 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
461};
462
e5497d76
JB		 463/* policy for GTK rekey offload attributes */
464static const struct nla_policy
465nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
466 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
467 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
468 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
469};
470
a1f1c21c
LC		 471static const struct nla_policy
472nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 473 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 474 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 475 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 476};
477
97990a06
JB		 478static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
479 struct netlink_callback *cb,
480 struct cfg80211_registered_device **rdev,
481 struct wireless_dev **wdev)
a043897a 482{
97990a06 483 int err;
a043897a 484
97990a06 485 rtnl_lock();
a043897a 486
97990a06
JB		 487 if (!cb->args[0]) {
488 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
489 nl80211_fam.attrbuf, nl80211_fam.maxattr,
490 nl80211_policy);
491 if (err)
492 goto out_unlock;
67748893 493
97990a06
JB		 494 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
495 nl80211_fam.attrbuf);
496 if (IS_ERR(*wdev)) {
497 err = PTR_ERR(*wdev);
498 goto out_unlock;
499 }
f26cbf40 500 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 501 /* 0 is the first index - add 1 to parse only once */
502 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 503 cb->args[1] = (*wdev)->identifier;
504 } else {
c319d50b
JB		 505 /* subtract the 1 again here */
506 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 507 struct wireless_dev *tmp;
67748893 508
97990a06
JB		 509 if (!wiphy) {
510 err = -ENODEV;
511 goto out_unlock;
512 }
f26cbf40 513 *rdev = wiphy_to_rdev(wiphy);
97990a06 514 *wdev = NULL;
67748893 515
97990a06
JB		 516 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
517 if (tmp->identifier == cb->args[1]) {
518 *wdev = tmp;
519 break;
520 }
521 }
67748893 522
97990a06
JB		 523 if (!*wdev) {
524 err = -ENODEV;
525 goto out_unlock;
526 }
67748893
JB		 527 }
528
67748893 529 return 0;
97990a06 530 out_unlock:
67748893
JB		 531 rtnl_unlock();
532 return err;
533}
534
97990a06 535static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 536{
67748893
JB		 537 rtnl_unlock();
538}
539
f4a11bb0
JB		 540/* IE validation */
541static bool is_valid_ie_attr(const struct nlattr *attr)
542{
543 const u8 *pos;
544 int len;
545
546 if (!attr)
547 return true;
548
549 pos = nla_data(attr);
550 len = nla_len(attr);
551
552 while (len) {
553 u8 elemlen;
554
555 if (len < 2)
556 return false;
557 len -= 2;
558
559 elemlen = pos[1];
560 if (elemlen > len)
561 return false;
562
563 len -= elemlen;
564 pos += 2 + elemlen;
565 }
566
567 return true;
568}
569
55682965 570/* message building helper */
15e47304 571static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 572 int flags, u8 cmd)
573{
574 /* since there is no private header just add the generic one */
15e47304 575 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 576}
577
5dab3b8a 578static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 579 struct ieee80211_channel *chan,
580 bool large)
5dab3b8a 581{
ea077c1c
RL		 582 /* Some channels must be completely excluded from the
583 * list to protect old user-space tools from breaking
584 */
585 if (!large && chan->flags &
586 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
587 return 0;
588
9360ffd1
DM		 589 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
590 chan->center_freq))
591 goto nla_put_failure;
5dab3b8a 592
9360ffd1
DM		 593 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
594 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
595 goto nla_put_failure;
8fe02e16
LR		 596 if (chan->flags & IEEE80211_CHAN_NO_IR) {
597 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
598 goto nla_put_failure;
599 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
600 goto nla_put_failure;
601 }
cdc89b97
JB		 602 if (chan->flags & IEEE80211_CHAN_RADAR) {
603 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
604 goto nla_put_failure;
605 if (large) {
606 u32 time;
607
608 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
609
610 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
611 chan->dfs_state))
612 goto nla_put_failure;
613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
614 time))
615 goto nla_put_failure;
089027e5
JD		 616 if (nla_put_u32(msg,
617 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
618 chan->dfs_cac_ms))
619 goto nla_put_failure;
cdc89b97
JB		 620 }
621 }
5dab3b8a 622
fe1abafd
JB		 623 if (large) {
624 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
635 goto nla_put_failure;
570dbde1
DS		 636 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
638 goto nla_put_failure;
639 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
641 goto nla_put_failure;
ea077c1c
RL		 642 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
644 goto nla_put_failure;
645 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
646 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
647 goto nla_put_failure;
fe1abafd
JB		 648 }
649
9360ffd1
DM		 650 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
651 DBM_TO_MBM(chan->max_power)))
652 goto nla_put_failure;
5dab3b8a
LR		 653
654 return 0;
655
656 nla_put_failure:
657 return -ENOBUFS;
658}
659
55682965
JB		 660/* netlink command implementations */
661
b9454e83
JB		 662struct key_parse {
663 struct key_params p;
664 int idx;
e31b8213 665 int type;
b9454e83 666 bool def, defmgmt;
dbd2fd65 667 bool def_uni, def_multi;
b9454e83
JB		 668};
669
670static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
671{
672 struct nlattr *tb[NL80211_KEY_MAX + 1];
673 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
674 nl80211_key_policy);
675 if (err)
676 return err;
677
678 k->def = !!tb[NL80211_KEY_DEFAULT];
679 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
680
dbd2fd65
JB		 681 if (k->def) {
682 k->def_uni = true;
683 k->def_multi = true;
684 }
685 if (k->defmgmt)
686 k->def_multi = true;
687
b9454e83
JB		 688 if (tb[NL80211_KEY_IDX])
689 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
690
691 if (tb[NL80211_KEY_DATA]) {
692 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
693 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
694 }
695
696 if (tb[NL80211_KEY_SEQ]) {
697 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
698 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
699 }
700
701 if (tb[NL80211_KEY_CIPHER])
702 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
703
e31b8213
JB		 704 if (tb[NL80211_KEY_TYPE]) {
705 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
706 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
707 return -EINVAL;
708 }
709
dbd2fd65
JB		 710 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
711 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 712 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
713 tb[NL80211_KEY_DEFAULT_TYPES],
714 nl80211_key_default_policy);
dbd2fd65
JB		 715 if (err)
716 return err;
717
718 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
719 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
720 }
721
b9454e83
JB		 722 return 0;
723}
724
725static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
726{
727 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
728 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
729 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
730 }
731
732 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
733 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
734 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
735 }
736
737 if (info->attrs[NL80211_ATTR_KEY_IDX])
738 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
739
740 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
741 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
742
743 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
744 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
745
dbd2fd65
JB		 746 if (k->def) {
747 k->def_uni = true;
748 k->def_multi = true;
749 }
750 if (k->defmgmt)
751 k->def_multi = true;
752
e31b8213
JB		 753 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
754 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
755 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
756 return -EINVAL;
757 }
758
dbd2fd65
JB		 759 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
760 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
761 int err = nla_parse_nested(
762 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
763 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
764 nl80211_key_default_policy);
765 if (err)
766 return err;
767
768 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
769 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
770 }
771
b9454e83
JB		 772 return 0;
773}
774
775static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
776{
777 int err;
778
779 memset(k, 0, sizeof(*k));
780 k->idx = -1;
e31b8213 781 k->type = -1;
b9454e83
JB		 782
783 if (info->attrs[NL80211_ATTR_KEY])
784 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
785 else
786 err = nl80211_parse_key_old(info, k);
787
788 if (err)
789 return err;
790
791 if (k->def && k->defmgmt)
792 return -EINVAL;
793
dbd2fd65
JB		 794 if (k->defmgmt) {
795 if (k->def_uni || !k->def_multi)
796 return -EINVAL;
797 }
798
b9454e83
JB		 799 if (k->idx != -1) {
800 if (k->defmgmt) {
801 if (k->idx < 4 || k->idx > 5)
802 return -EINVAL;
803 } else if (k->def) {
804 if (k->idx < 0 || k->idx > 3)
805 return -EINVAL;
806 } else {
807 if (k->idx < 0 || k->idx > 5)
808 return -EINVAL;
809 }
810 }
811
812 return 0;
813}
814
fffd0934
JB		 815static struct cfg80211_cached_keys *
816nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 817 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 818{
819 struct key_parse parse;
820 struct nlattr *key;
821 struct cfg80211_cached_keys *result;
822 int rem, err, def = 0;
823
824 result = kzalloc(sizeof(*result), GFP_KERNEL);
825 if (!result)
826 return ERR_PTR(-ENOMEM);
827
828 result->def = -1;
829 result->defmgmt = -1;
830
831 nla_for_each_nested(key, keys, rem) {
832 memset(&parse, 0, sizeof(parse));
833 parse.idx = -1;
834
835 err = nl80211_parse_key_new(key, &parse);
836 if (err)
837 goto error;
838 err = -EINVAL;
839 if (!parse.p.key)
840 goto error;
841 if (parse.idx < 0 || parse.idx > 4)
842 goto error;
843 if (parse.def) {
844 if (def)
845 goto error;
846 def = 1;
847 result->def = parse.idx;
dbd2fd65
JB		 848 if (!parse.def_uni || !parse.def_multi)
849 goto error;
fffd0934
JB		 850 } else if (parse.defmgmt)
851 goto error;
852 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 853 parse.idx, false, NULL);
fffd0934
JB		 854 if (err)
855 goto error;
856 result->params[parse.idx].cipher = parse.p.cipher;
857 result->params[parse.idx].key_len = parse.p.key_len;
858 result->params[parse.idx].key = result->data[parse.idx];
859 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 860
861 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
862 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
863 if (no_ht)
864 *no_ht = true;
865 }
fffd0934
JB		 866 }
867
868 return result;
869 error:
870 kfree(result);
871 return ERR_PTR(err);
872}
873
874static int nl80211_key_allowed(struct wireless_dev *wdev)
875{
876 ASSERT_WDEV_LOCK(wdev);
877
fffd0934
JB		 878 switch (wdev->iftype) {
879 case NL80211_IFTYPE_AP:
880 case NL80211_IFTYPE_AP_VLAN:
074ac8df 881 case NL80211_IFTYPE_P2P_GO:
ff973af7 882 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 883 break;
884 case NL80211_IFTYPE_ADHOC:
fffd0934 885 case NL80211_IFTYPE_STATION:
074ac8df 886 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 887 if (!wdev->current_bss)
fffd0934
JB		 888 return -ENOLINK;
889 break;
de4fcbad 890 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 891 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 892 case NL80211_IFTYPE_MONITOR:
893 case NL80211_IFTYPE_P2P_DEVICE:
894 case NL80211_IFTYPE_WDS:
895 case NUM_NL80211_IFTYPES:
fffd0934
JB		 896 return -EINVAL;
897 }
898
899 return 0;
900}
901
664834de
JM		 902static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
903 struct nlattr *tb)
904{
905 struct ieee80211_channel *chan;
906
907 if (tb == NULL)
908 return NULL;
909 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
910 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
911 return NULL;
912 return chan;
913}
914
7527a782
JB		 915static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
916{
917 struct nlattr *nl_modes = nla_nest_start(msg, attr);
918 int i;
919
920 if (!nl_modes)
921 goto nla_put_failure;
922
923 i = 0;
924 while (ifmodes) {
9360ffd1
DM		 925 if ((ifmodes & 1) && nla_put_flag(msg, i))
926 goto nla_put_failure;
7527a782
JB		 927 ifmodes >>= 1;
928 i++;
929 }
930
931 nla_nest_end(msg, nl_modes);
932 return 0;
933
934nla_put_failure:
935 return -ENOBUFS;
936}
937
938static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 939 struct sk_buff *msg,
940 bool large)
7527a782
JB		 941{
942 struct nlattr *nl_combis;
943 int i, j;
944
945 nl_combis = nla_nest_start(msg,
946 NL80211_ATTR_INTERFACE_COMBINATIONS);
947 if (!nl_combis)
948 goto nla_put_failure;
949
950 for (i = 0; i < wiphy->n_iface_combinations; i++) {
951 const struct ieee80211_iface_combination *c;
952 struct nlattr *nl_combi, *nl_limits;
953
954 c = &wiphy->iface_combinations[i];
955
956 nl_combi = nla_nest_start(msg, i + 1);
957 if (!nl_combi)
958 goto nla_put_failure;
959
960 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
961 if (!nl_limits)
962 goto nla_put_failure;
963
964 for (j = 0; j < c->n_limits; j++) {
965 struct nlattr *nl_limit;
966
967 nl_limit = nla_nest_start(msg, j + 1);
968 if (!nl_limit)
969 goto nla_put_failure;
9360ffd1
DM		 970 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
971 c->limits[j].max))
972 goto nla_put_failure;
7527a782
JB		 973 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
974 c->limits[j].types))
975 goto nla_put_failure;
976 nla_nest_end(msg, nl_limit);
977 }
978
979 nla_nest_end(msg, nl_limits);
980
9360ffd1
DM		 981 if (c->beacon_int_infra_match &&
982 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
983 goto nla_put_failure;
984 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
985 c->num_different_channels) ||
986 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
987 c->max_interfaces))
988 goto nla_put_failure;
cdc89b97 989 if (large &&
8c48b50a
FF		 990 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
991 c->radar_detect_widths) ||
992 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
993 c->radar_detect_regions)))
cdc89b97 994 goto nla_put_failure;
7527a782
JB		 995
996 nla_nest_end(msg, nl_combi);
997 }
998
999 nla_nest_end(msg, nl_combis);
1000
1001 return 0;
1002nla_put_failure:
1003 return -ENOBUFS;
1004}
1005
3713b4e3 1006#ifdef CONFIG_PM
b56cf720
JB		 1007static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1008 struct sk_buff *msg)
1009{
964dc9e2 1010 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1011 struct nlattr *nl_tcp;
1012
1013 if (!tcp)
1014 return 0;
1015
1016 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1017 if (!nl_tcp)
1018 return -ENOBUFS;
1019
1020 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1021 tcp->data_payload_max))
1022 return -ENOBUFS;
1023
1024 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1025 tcp->data_payload_max))
1026 return -ENOBUFS;
1027
1028 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1029 return -ENOBUFS;
1030
1031 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1032 sizeof(*tcp->tok), tcp->tok))
1033 return -ENOBUFS;
1034
1035 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1036 tcp->data_interval_max))
1037 return -ENOBUFS;
1038
1039 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1040 tcp->wake_payload_max))
1041 return -ENOBUFS;
1042
1043 nla_nest_end(msg, nl_tcp);
1044 return 0;
1045}
1046
3713b4e3 1047static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1048 struct cfg80211_registered_device *rdev,
b56cf720 1049 bool large)
55682965 1050{
3713b4e3 1051 struct nlattr *nl_wowlan;
55682965 1052
1b8ec87a 1053 if (!rdev->wiphy.wowlan)
3713b4e3 1054 return 0;
55682965 1055
3713b4e3
JB		 1056 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1057 if (!nl_wowlan)
1058 return -ENOBUFS;
9360ffd1 1059
1b8ec87a 1060 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1062 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1064 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1068 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1070 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1076 return -ENOBUFS;
9360ffd1 1077
1b8ec87a 1078 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1079 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1080 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1081 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1082 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1083 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1084 };
9360ffd1 1085
3713b4e3
JB		 1086 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1087 sizeof(pat), &pat))
1088 return -ENOBUFS;
1089 }
9360ffd1 1090
1b8ec87a 1091 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1092 return -ENOBUFS;
1093
8cd4d456
LC		 1094 /* TODO: send wowlan net detect */
1095
3713b4e3 1096 nla_nest_end(msg, nl_wowlan);
9360ffd1 1097
3713b4e3
JB		 1098 return 0;
1099}
1100#endif
9360ffd1 1101
be29b99a 1102static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1103 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1104{
1105 struct nl80211_coalesce_rule_support rule;
1106
1b8ec87a 1107 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1108 return 0;
1109
1b8ec87a
ZG		 1110 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1111 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1112 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1113 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1114 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1115 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1116
1117 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1118 return -ENOBUFS;
1119
1120 return 0;
1121}
1122
3713b4e3
JB		 1123static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1124 struct ieee80211_supported_band *sband)
1125{
1126 struct nlattr *nl_rates, *nl_rate;
1127 struct ieee80211_rate *rate;
1128 int i;
87bbbe22 1129
3713b4e3
JB		 1130 /* add HT info */
1131 if (sband->ht_cap.ht_supported &&
1132 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1133 sizeof(sband->ht_cap.mcs),
1134 &sband->ht_cap.mcs) ||
1135 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1136 sband->ht_cap.cap) ||
1137 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1138 sband->ht_cap.ampdu_factor) ||
1139 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1140 sband->ht_cap.ampdu_density)))
1141 return -ENOBUFS;
afe0cbf8 1142
3713b4e3
JB		 1143 /* add VHT info */
1144 if (sband->vht_cap.vht_supported &&
1145 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1146 sizeof(sband->vht_cap.vht_mcs),
1147 &sband->vht_cap.vht_mcs) ||
1148 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1149 sband->vht_cap.cap)))
1150 return -ENOBUFS;
f59ac048 1151
3713b4e3
JB		 1152 /* add bitrates */
1153 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1154 if (!nl_rates)
1155 return -ENOBUFS;
ee688b00 1156
3713b4e3
JB		 1157 for (i = 0; i < sband->n_bitrates; i++) {
1158 nl_rate = nla_nest_start(msg, i);
1159 if (!nl_rate)
1160 return -ENOBUFS;
ee688b00 1161
3713b4e3
JB		 1162 rate = &sband->bitrates[i];
1163 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1164 rate->bitrate))
1165 return -ENOBUFS;
1166 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1167 nla_put_flag(msg,
1168 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1169 return -ENOBUFS;
ee688b00 1170
3713b4e3
JB		 1171 nla_nest_end(msg, nl_rate);
1172 }
d51626df 1173
3713b4e3 1174 nla_nest_end(msg, nl_rates);
bf0c111e 1175
3713b4e3
JB		 1176 return 0;
1177}
ee688b00 1178
3713b4e3
JB		 1179static int
1180nl80211_send_mgmt_stypes(struct sk_buff *msg,
1181 const struct ieee80211_txrx_stypes *mgmt_stypes)
1182{
1183 u16 stypes;
1184 struct nlattr *nl_ftypes, *nl_ifs;
1185 enum nl80211_iftype ift;
1186 int i;
ee688b00 1187
3713b4e3
JB		 1188 if (!mgmt_stypes)
1189 return 0;
5dab3b8a 1190
3713b4e3
JB		 1191 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1192 if (!nl_ifs)
1193 return -ENOBUFS;
e2f367f2 1194
3713b4e3
JB		 1195 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1196 nl_ftypes = nla_nest_start(msg, ift);
1197 if (!nl_ftypes)
1198 return -ENOBUFS;
1199 i = 0;
1200 stypes = mgmt_stypes[ift].tx;
1201 while (stypes) {
1202 if ((stypes & 1) &&
1203 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1204 (i << 4) | IEEE80211_FTYPE_MGMT))
1205 return -ENOBUFS;
1206 stypes >>= 1;
1207 i++;
ee688b00 1208 }
3713b4e3
JB		 1209 nla_nest_end(msg, nl_ftypes);
1210 }
ee688b00 1211
3713b4e3 1212 nla_nest_end(msg, nl_ifs);
ee688b00 1213
3713b4e3
JB		 1214 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1215 if (!nl_ifs)
1216 return -ENOBUFS;
ee688b00 1217
3713b4e3
JB		 1218 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1219 nl_ftypes = nla_nest_start(msg, ift);
1220 if (!nl_ftypes)
1221 return -ENOBUFS;
1222 i = 0;
1223 stypes = mgmt_stypes[ift].rx;
1224 while (stypes) {
1225 if ((stypes & 1) &&
1226 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1227 (i << 4) | IEEE80211_FTYPE_MGMT))
1228 return -ENOBUFS;
1229 stypes >>= 1;
1230 i++;
1231 }
1232 nla_nest_end(msg, nl_ftypes);
1233 }
1234 nla_nest_end(msg, nl_ifs);
ee688b00 1235
3713b4e3
JB		 1236 return 0;
1237}
ee688b00 1238
86e8cf98
JB		 1239struct nl80211_dump_wiphy_state {
1240 s64 filter_wiphy;
1241 long start;
1242 long split_start, band_start, chan_start;
1243 bool split;
1244};
1245
1b8ec87a 1246static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1247 enum nl80211_commands cmd,
3713b4e3 1248 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1249 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1250{
1251 void *hdr;
1252 struct nlattr *nl_bands, *nl_band;
1253 struct nlattr *nl_freqs, *nl_freq;
1254 struct nlattr *nl_cmds;
1255 enum ieee80211_band band;
1256 struct ieee80211_channel *chan;
1257 int i;
1258 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1259 rdev->wiphy.mgmt_stypes;
fe1abafd 1260 u32 features;
ee688b00 1261
3bb20556 1262 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1263 if (!hdr)
1264 return -ENOBUFS;
ee688b00 1265
86e8cf98
JB		 1266 if (WARN_ON(!state))
1267 return -EINVAL;
ee688b00 1268
1b8ec87a 1269 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1270 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1271 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1272 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1273 cfg80211_rdev_list_generation))
8fdc621d
JB		 1274 goto nla_put_failure;
1275
3bb20556
JB		 1276 if (cmd != NL80211_CMD_NEW_WIPHY)
1277 goto finish;
1278
86e8cf98 1279 switch (state->split_start) {
3713b4e3
JB		 1280 case 0:
1281 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1282 rdev->wiphy.retry_short) ||
3713b4e3 1283 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1284 rdev->wiphy.retry_long) ||
3713b4e3 1285 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1286 rdev->wiphy.frag_threshold) ||
3713b4e3 1287 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1288 rdev->wiphy.rts_threshold) ||
3713b4e3 1289 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1290 rdev->wiphy.coverage_class) ||
3713b4e3 1291 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1292 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1293 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1294 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1295 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1296 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1297 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1298 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1299 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1300 rdev->wiphy.max_match_sets))
9360ffd1 1301 goto nla_put_failure;
3713b4e3 1302
1b8ec87a 1303 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1304 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1305 goto nla_put_failure;
1b8ec87a 1306 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1307 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1308 goto nla_put_failure;
1b8ec87a 1309 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1310 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1311 goto nla_put_failure;
1b8ec87a 1312 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1313 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1314 goto nla_put_failure;
1b8ec87a 1315 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1316 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1317 goto nla_put_failure;
1b8ec87a 1318 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1319 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1320 goto nla_put_failure;
86e8cf98
JB		 1321 state->split_start++;
1322 if (state->split)
3713b4e3
JB		 1323 break;
1324 case 1:
1325 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1326 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1327 rdev->wiphy.cipher_suites))
3713b4e3 1328 goto nla_put_failure;
4745fc09 1329
3713b4e3 1330 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1331 rdev->wiphy.max_num_pmkids))
3713b4e3 1332 goto nla_put_failure;
b23aa676 1333
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1335 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1336 goto nla_put_failure;
b23aa676 1337
3713b4e3 1338 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1339 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1340 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1341 rdev->wiphy.available_antennas_rx))
9360ffd1 1342 goto nla_put_failure;
b23aa676 1343
1b8ec87a 1344 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1345 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1346 rdev->wiphy.probe_resp_offload))
3713b4e3 1347 goto nla_put_failure;
8fdc621d 1348
1b8ec87a
ZG		 1349 if ((rdev->wiphy.available_antennas_tx ||
1350 rdev->wiphy.available_antennas_rx) &&
1351 rdev->ops->get_antenna) {
3713b4e3
JB		 1352 u32 tx_ant = 0, rx_ant = 0;
1353 int res;
1b8ec87a 1354 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1355 if (!res) {
1356 if (nla_put_u32(msg,
1357 NL80211_ATTR_WIPHY_ANTENNA_TX,
1358 tx_ant) ||
1359 nla_put_u32(msg,
1360 NL80211_ATTR_WIPHY_ANTENNA_RX,
1361 rx_ant))
1362 goto nla_put_failure;
1363 }
1364 }
a293911d 1365
86e8cf98
JB		 1366 state->split_start++;
1367 if (state->split)
3713b4e3
JB		 1368 break;
1369 case 2:
1370 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1371 rdev->wiphy.interface_modes))
3713b4e3 1372 goto nla_put_failure;
86e8cf98
JB		 1373 state->split_start++;
1374 if (state->split)
3713b4e3
JB		 1375 break;
1376 case 3:
1377 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1378 if (!nl_bands)
1379 goto nla_put_failure;
f7ca38df 1380
86e8cf98
JB		 1381 for (band = state->band_start;
1382 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1383 struct ieee80211_supported_band *sband;
2e161f78 1384
1b8ec87a 1385 sband = rdev->wiphy.bands[band];
2e161f78 1386
3713b4e3
JB		 1387 if (!sband)
1388 continue;
1389
1390 nl_band = nla_nest_start(msg, band);
1391 if (!nl_band)
2e161f78 1392 goto nla_put_failure;
3713b4e3 1393
86e8cf98 1394 switch (state->chan_start) {
3713b4e3
JB		 1395 case 0:
1396 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1397 goto nla_put_failure;
86e8cf98
JB		 1398 state->chan_start++;
1399 if (state->split)
3713b4e3
JB		 1400 break;
1401 default:
1402 /* add frequencies */
1403 nl_freqs = nla_nest_start(
1404 msg, NL80211_BAND_ATTR_FREQS);
1405 if (!nl_freqs)
1406 goto nla_put_failure;
1407
86e8cf98 1408 for (i = state->chan_start - 1;
3713b4e3
JB		 1409 i < sband->n_channels;
1410 i++) {
1411 nl_freq = nla_nest_start(msg, i);
1412 if (!nl_freq)
1413 goto nla_put_failure;
1414
1415 chan = &sband->channels[i];
1416
86e8cf98
JB		 1417 if (nl80211_msg_put_channel(
1418 msg, chan,
1419 state->split))
3713b4e3
JB		 1420 goto nla_put_failure;
1421
1422 nla_nest_end(msg, nl_freq);
86e8cf98 1423 if (state->split)
3713b4e3
JB		 1424 break;
1425 }
1426 if (i < sband->n_channels)
86e8cf98 1427 state->chan_start = i + 2;
3713b4e3 1428 else
86e8cf98 1429 state->chan_start = 0;
3713b4e3
JB		 1430 nla_nest_end(msg, nl_freqs);
1431 }
1432
1433 nla_nest_end(msg, nl_band);
1434
86e8cf98 1435 if (state->split) {
3713b4e3 1436 /* start again here */
86e8cf98 1437 if (state->chan_start)
3713b4e3
JB		 1438 band--;
1439 break;
2e161f78 1440 }
2e161f78 1441 }
3713b4e3 1442 nla_nest_end(msg, nl_bands);
2e161f78 1443
3713b4e3 1444 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1445 state->band_start = band + 1;
3713b4e3 1446 else
86e8cf98 1447 state->band_start = 0;
74b70a4e 1448
3713b4e3 1449 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1450 if (state->band_start == 0 && state->chan_start == 0)
1451 state->split_start++;
1452 if (state->split)
3713b4e3
JB		 1453 break;
1454 case 4:
1455 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1456 if (!nl_cmds)
2e161f78
JB		 1457 goto nla_put_failure;
1458
3713b4e3
JB		 1459 i = 0;
1460#define CMD(op, n) \
1461 do { \
1b8ec87a 1462 if (rdev->ops->op) { \
3713b4e3
JB		 1463 i++; \
1464 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1465 goto nla_put_failure; \
1466 } \
1467 } while (0)
1468
1469 CMD(add_virtual_intf, NEW_INTERFACE);
1470 CMD(change_virtual_intf, SET_INTERFACE);
1471 CMD(add_key, NEW_KEY);
1472 CMD(start_ap, START_AP);
1473 CMD(add_station, NEW_STATION);
1474 CMD(add_mpath, NEW_MPATH);
1475 CMD(update_mesh_config, SET_MESH_CONFIG);
1476 CMD(change_bss, SET_BSS);
1477 CMD(auth, AUTHENTICATE);
1478 CMD(assoc, ASSOCIATE);
1479 CMD(deauth, DEAUTHENTICATE);
1480 CMD(disassoc, DISASSOCIATE);
1481 CMD(join_ibss, JOIN_IBSS);
1482 CMD(join_mesh, JOIN_MESH);
1483 CMD(set_pmksa, SET_PMKSA);
1484 CMD(del_pmksa, DEL_PMKSA);
1485 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1486 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1487 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1488 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1489 CMD(mgmt_tx, FRAME);
1490 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1491 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1492 i++;
1493 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1494 goto nla_put_failure;
2e161f78 1495 }
1b8ec87a
ZG		 1496 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1497 rdev->ops->join_mesh) {
3713b4e3
JB		 1498 i++;
1499 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1500 goto nla_put_failure;
1501 }
1502 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1503 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1504 CMD(tdls_mgmt, TDLS_MGMT);
1505 CMD(tdls_oper, TDLS_OPER);
1506 }
1b8ec87a 1507 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1508 CMD(sched_scan_start, START_SCHED_SCAN);
1509 CMD(probe_client, PROBE_CLIENT);
1510 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1511 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1512 i++;
1513 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1514 goto nla_put_failure;
1515 }
1516 CMD(start_p2p_device, START_P2P_DEVICE);
1517 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1518#ifdef CONFIG_NL80211_TESTMODE
1519 CMD(testmode_cmd, TESTMODE);
1520#endif
86e8cf98 1521 if (state->split) {
5de17984
AS		 1522 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1523 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1524 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1525 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1526 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1527 if (rdev->wiphy.features &
1528 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1529 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1530 }
02df00eb 1531 /* add into the if now */
3713b4e3 1532#undef CMD
ff1b6e69 1533
1b8ec87a 1534 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1535 i++;
1536 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1537 goto nla_put_failure;
ff1b6e69
JB		 1538 }
1539
1b8ec87a 1540 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1541 i++;
1542 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1543 goto nla_put_failure;
1544 }
1545
1546 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1547 state->split_start++;
1548 if (state->split)
3713b4e3
JB		 1549 break;
1550 case 5:
1b8ec87a
ZG		 1551 if (rdev->ops->remain_on_channel &&
1552 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1553 nla_put_u32(msg,
1554 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1555 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1556 goto nla_put_failure;
1557
1b8ec87a 1558 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1559 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1560 goto nla_put_failure;
1561
1562 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1563 goto nla_put_failure;
86e8cf98
JB		 1564 state->split_start++;
1565 if (state->split)
3713b4e3
JB		 1566 break;
1567 case 6:
1568#ifdef CONFIG_PM
1b8ec87a 1569 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1570 goto nla_put_failure;
86e8cf98
JB		 1571 state->split_start++;
1572 if (state->split)
3713b4e3
JB		 1573 break;
1574#else
86e8cf98 1575 state->split_start++;
dfb89c56 1576#endif
3713b4e3
JB		 1577 case 7:
1578 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1579 rdev->wiphy.software_iftypes))
3713b4e3 1580 goto nla_put_failure;
ff1b6e69 1581
1b8ec87a 1582 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1583 state->split))
3713b4e3 1584 goto nla_put_failure;
7527a782 1585
86e8cf98
JB		 1586 state->split_start++;
1587 if (state->split)
3713b4e3
JB		 1588 break;
1589 case 8:
1b8ec87a 1590 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1591 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1592 rdev->wiphy.ap_sme_capa))
3713b4e3 1593 goto nla_put_failure;
7527a782 1594
1b8ec87a 1595 features = rdev->wiphy.features;
fe1abafd
JB		 1596 /*
1597 * We can only add the per-channel limit information if the
1598 * dump is split, otherwise it makes it too big. Therefore
1599 * only advertise it in that case.
1600 */
86e8cf98 1601 if (state->split)
fe1abafd
JB		 1602 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1603 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1604 goto nla_put_failure;
562a7480 1605
1b8ec87a 1606 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1607 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1608 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1609 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1610 goto nla_put_failure;
1f074bd8 1611
1b8ec87a
ZG		 1612 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1613 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1614 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1615 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1616 goto nla_put_failure;
7e7c8926 1617
3713b4e3
JB		 1618 /*
1619 * Any information below this point is only available to
1620 * applications that can deal with it being split. This
1621 * helps ensure that newly added capabilities don't break
1622 * older tools by overrunning their buffers.
1623 *
1624 * We still increment split_start so that in the split
1625 * case we'll continue with more data in the next round,
1626 * but break unconditionally so unsplit data stops here.
1627 */
86e8cf98 1628 state->split_start++;
3713b4e3
JB		 1629 break;
1630 case 9:
1b8ec87a 1631 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1632 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1633 rdev->wiphy.extended_capabilities_len,
1634 rdev->wiphy.extended_capabilities) ||
fe1abafd 1635 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1636 rdev->wiphy.extended_capabilities_len,
1637 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1638 goto nla_put_failure;
a50df0c4 1639
1b8ec87a 1640 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1641 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1642 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1643 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1644 goto nla_put_failure;
1645
be29b99a
AK		 1646 state->split_start++;
1647 break;
1648 case 10:
1b8ec87a 1649 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1650 goto nla_put_failure;
1651
1b8ec87a 1652 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1653 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1654 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1655 goto nla_put_failure;
b43504cf 1656
1b8ec87a 1657 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1658 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1659 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1660 goto nla_put_failure;
1661
ad7e718c
JB		 1662 state->split_start++;
1663 break;
1664 case 11:
1b8ec87a 1665 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1666 const struct nl80211_vendor_cmd_info *info;
1667 struct nlattr *nested;
1668
1669 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1670 if (!nested)
1671 goto nla_put_failure;
1672
1b8ec87a
ZG		 1673 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1674 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1675 if (nla_put(msg, i + 1, sizeof(*info), info))
1676 goto nla_put_failure;
1677 }
1678 nla_nest_end(msg, nested);
1679 }
1680
1b8ec87a 1681 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1682 const struct nl80211_vendor_cmd_info *info;
1683 struct nlattr *nested;
ad7e718c 1684
567ffc35
JB		 1685 nested = nla_nest_start(msg,
1686 NL80211_ATTR_VENDOR_EVENTS);
1687 if (!nested)
ad7e718c 1688 goto nla_put_failure;
567ffc35 1689
1b8ec87a
ZG		 1690 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1691 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1692 if (nla_put(msg, i + 1, sizeof(*info), info))
1693 goto nla_put_failure;
1694 }
1695 nla_nest_end(msg, nested);
1696 }
9a774c78
AO		 1697 state->split_start++;
1698 break;
1699 case 12:
1700 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1701 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1702 rdev->wiphy.max_num_csa_counters))
1703 goto nla_put_failure;
01e0daa4 1704
1bdd716c
AN		 1705 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1706 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1707 goto nla_put_failure;
1708
3713b4e3 1709 /* done */
86e8cf98 1710 state->split_start = 0;
3713b4e3
JB		 1711 break;
1712 }
3bb20556 1713 finish:
55682965
JB		 1714 return genlmsg_end(msg, hdr);
1715
1716 nla_put_failure:
bc3ed28c
TG		 1717 genlmsg_cancel(msg, hdr);
1718 return -EMSGSIZE;
55682965
JB		 1719}
1720
86e8cf98
JB		 1721static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1722 struct netlink_callback *cb,
1723 struct nl80211_dump_wiphy_state *state)
1724{
1725 struct nlattr **tb = nl80211_fam.attrbuf;
1726 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1727 tb, nl80211_fam.maxattr, nl80211_policy);
1728 /* ignore parse errors for backward compatibility */
1729 if (ret)
1730 return 0;
1731
1732 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1733 if (tb[NL80211_ATTR_WIPHY])
1734 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1735 if (tb[NL80211_ATTR_WDEV])
1736 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1737 if (tb[NL80211_ATTR_IFINDEX]) {
1738 struct net_device *netdev;
1739 struct cfg80211_registered_device *rdev;
1740 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1741
7f2b8562 1742 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1743 if (!netdev)
1744 return -ENODEV;
1745 if (netdev->ieee80211_ptr) {
f26cbf40 1746 rdev = wiphy_to_rdev(
86e8cf98
JB		 1747 netdev->ieee80211_ptr->wiphy);
1748 state->filter_wiphy = rdev->wiphy_idx;
1749 }
86e8cf98
JB		 1750 }
1751
1752 return 0;
1753}
1754
55682965
JB		 1755static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1756{
645e77de 1757 int idx = 0, ret;
86e8cf98 1758 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1759 struct cfg80211_registered_device *rdev;
3a5a423b 1760
5fe231e8 1761 rtnl_lock();
86e8cf98
JB		 1762 if (!state) {
1763 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1764 if (!state) {
1765 rtnl_unlock();
86e8cf98 1766 return -ENOMEM;
3713b4e3 1767 }
86e8cf98
JB		 1768 state->filter_wiphy = -1;
1769 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1770 if (ret) {
1771 kfree(state);
1772 rtnl_unlock();
1773 return ret;
3713b4e3 1774 }
86e8cf98 1775 cb->args[0] = (long)state;
3713b4e3
JB		 1776 }
1777
1b8ec87a
ZG		 1778 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1779 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1780 continue;
86e8cf98 1781 if (++idx <= state->start)
55682965 1782 continue;
86e8cf98 1783 if (state->filter_wiphy != -1 &&
1b8ec87a 1784 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1785 continue;
1786 /* attempt to fit multiple wiphy data chunks into the skb */
1787 do {
3bb20556
JB		 1788 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1789 skb,
3713b4e3
JB		 1790 NETLINK_CB(cb->skb).portid,
1791 cb->nlh->nlmsg_seq,
86e8cf98 1792 NLM_F_MULTI, state);
3713b4e3
JB		 1793 if (ret < 0) {
1794 /*
1795 * If sending the wiphy data didn't fit (ENOBUFS
1796 * or EMSGSIZE returned), this SKB is still
1797 * empty (so it's not too big because another
1798 * wiphy dataset is already in the skb) and
1799 * we've not tried to adjust the dump allocation
1800 * yet ... then adjust the alloc size to be
1801 * bigger, and return 1 but with the empty skb.
1802 * This results in an empty message being RX'ed
1803 * in userspace, but that is ignored.
1804 *
1805 * We can then retry with the larger buffer.
1806 */
1807 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1808 !skb->len && !state->split &&
3713b4e3
JB		 1809 cb->min_dump_alloc < 4096) {
1810 cb->min_dump_alloc = 4096;
f12cb289 1811 state->split_start = 0;
d98cae64 1812 rtnl_unlock();
3713b4e3
JB		 1813 return 1;
1814 }
1815 idx--;
1816 break;
645e77de 1817 }
86e8cf98 1818 } while (state->split_start > 0);
3713b4e3 1819 break;
55682965 1820 }
5fe231e8 1821 rtnl_unlock();
55682965 1822
86e8cf98 1823 state->start = idx;
55682965
JB		 1824
1825 return skb->len;
1826}
1827
86e8cf98
JB		 1828static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1829{
1830 kfree((void *)cb->args[0]);
1831 return 0;
1832}
1833
55682965
JB		 1834static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1835{
1836 struct sk_buff *msg;
1b8ec87a 1837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1838 struct nl80211_dump_wiphy_state state = {};
55682965 1839
645e77de 1840 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1841 if (!msg)
4c476991 1842 return -ENOMEM;
55682965 1843
3bb20556
JB		 1844 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1845 info->snd_portid, info->snd_seq, 0,
86e8cf98 1846 &state) < 0) {
4c476991
JB		 1847 nlmsg_free(msg);
1848 return -ENOBUFS;
1849 }
55682965 1850
134e6375 1851 return genlmsg_reply(msg, info);
55682965
JB		 1852}
1853
31888487
JM		 1854static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1855 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1856 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1857 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1858 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1859 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1860};
1861
1862static int parse_txq_params(struct nlattr *tb[],
1863 struct ieee80211_txq_params *txq_params)
1864{
a3304b0a 1865 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1866 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1867 !tb[NL80211_TXQ_ATTR_AIFS])
1868 return -EINVAL;
1869
a3304b0a 1870 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1871 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1872 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1873 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1874 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1875
a3304b0a
JB		 1876 if (txq_params->ac >= NL80211_NUM_ACS)
1877 return -EINVAL;
1878
31888487
JM		 1879 return 0;
1880}
1881
f444de05
JB		 1882static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1883{
1884 /*
cc1d2806
JB		 1885 * You can only set the channel explicitly for WDS interfaces,
1886 * all others have their channel managed via their respective
1887 * "establish a connection" command (connect, join, ...)
1888 *
1889 * For AP/GO and mesh mode, the channel can be set with the
1890 * channel userspace API, but is only stored and passed to the
1891 * low-level driver when the AP starts or the mesh is joined.
1892 * This is for backward compatibility, userspace can also give
1893 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1894 *
1895 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1896 * whatever else is going on, so they have their own special
1897 * operation to set the monitor channel if possible.
f444de05
JB		 1898 */
1899 return !wdev ||
1900 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1901 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1902 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1903 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1904}
1905
683b6d3b
JB		 1906static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1907 struct genl_info *info,
1908 struct cfg80211_chan_def *chandef)
1909{
dbeca2ea 1910 u32 control_freq;
683b6d3b
JB		 1911
1912 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1913 return -EINVAL;
1914
1915 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1916
1917 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1918 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1919 chandef->center_freq1 = control_freq;
1920 chandef->center_freq2 = 0;
683b6d3b
JB		 1921
1922 /* Primary channel not allowed */
1923 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1924 return -EINVAL;
1925
3d9d1d66
JB		 1926 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1927 enum nl80211_channel_type chantype;
1928
1929 chantype = nla_get_u32(
1930 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1931
1932 switch (chantype) {
1933 case NL80211_CHAN_NO_HT:
1934 case NL80211_CHAN_HT20:
1935 case NL80211_CHAN_HT40PLUS:
1936 case NL80211_CHAN_HT40MINUS:
1937 cfg80211_chandef_create(chandef, chandef->chan,
1938 chantype);
1939 break;
1940 default:
1941 return -EINVAL;
1942 }
1943 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1944 chandef->width =
1945 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1946 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1947 chandef->center_freq1 =
1948 nla_get_u32(
1949 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1950 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1951 chandef->center_freq2 =
1952 nla_get_u32(
1953 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1954 }
1955
9f5e8f6e 1956 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1957 return -EINVAL;
1958
9f5e8f6e
JB		 1959 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1960 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1961 return -EINVAL;
1962
2f301ab2
SW		 1963 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1964 chandef->width == NL80211_CHAN_WIDTH_10) &&
1965 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1966 return -EINVAL;
1967
683b6d3b
JB		 1968 return 0;
1969}
1970
f444de05 1971static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1972 struct net_device *dev,
f444de05
JB		 1973 struct genl_info *info)
1974{
683b6d3b 1975 struct cfg80211_chan_def chandef;
f444de05 1976 int result;
e8c9bd5b 1977 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1978 struct wireless_dev *wdev = NULL;
e8c9bd5b 1979
e16821bc
JM		 1980 if (dev)
1981 wdev = dev->ieee80211_ptr;
f444de05
JB		 1982 if (!nl80211_can_set_dev_channel(wdev))
1983 return -EOPNOTSUPP;
e16821bc
JM		 1984 if (wdev)
1985 iftype = wdev->iftype;
f444de05 1986
683b6d3b
JB		 1987 result = nl80211_parse_chandef(rdev, info, &chandef);
1988 if (result)
1989 return result;
f444de05 1990
e8c9bd5b 1991 switch (iftype) {
aa430da4
JB		 1992 case NL80211_IFTYPE_AP:
1993 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1994 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1995 result = -EINVAL;
1996 break;
1997 }
e16821bc
JM		 1998 if (wdev->beacon_interval) {
1999 if (!dev || !rdev->ops->set_ap_chanwidth ||
2000 !(rdev->wiphy.features &
2001 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2002 result = -EBUSY;
2003 break;
2004 }
2005
2006 /* Only allow dynamic channel width changes */
2007 if (chandef.chan != wdev->preset_chandef.chan) {
2008 result = -EBUSY;
2009 break;
2010 }
2011 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2012 if (result)
2013 break;
2014 }
683b6d3b 2015 wdev->preset_chandef = chandef;
aa430da4
JB		 2016 result = 0;
2017 break;
cc1d2806 2018 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2019 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2020 break;
e8c9bd5b 2021 case NL80211_IFTYPE_MONITOR:
683b6d3b 2022 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2023 break;
aa430da4 2024 default:
e8c9bd5b 2025 result = -EINVAL;
f444de05 2026 }
f444de05
JB		 2027
2028 return result;
2029}
2030
2031static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2032{
4c476991
JB		 2033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2034 struct net_device *netdev = info->user_ptr[1];
f444de05 2035
e16821bc 2036 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2037}
2038
e8347eba
BJ		 2039static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2040{
43b19952
JB		 2041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2042 struct net_device *dev = info->user_ptr[1];
2043 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2044 const u8 *bssid;
e8347eba
BJ		 2045
2046 if (!info->attrs[NL80211_ATTR_MAC])
2047 return -EINVAL;
2048
43b19952
JB		 2049 if (netif_running(dev))
2050 return -EBUSY;
e8347eba 2051
43b19952
JB		 2052 if (!rdev->ops->set_wds_peer)
2053 return -EOPNOTSUPP;
e8347eba 2054
43b19952
JB		 2055 if (wdev->iftype != NL80211_IFTYPE_WDS)
2056 return -EOPNOTSUPP;
e8347eba
BJ		 2057
2058 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2059 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2060}
2061
2062
55682965
JB		 2063static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2064{
2065 struct cfg80211_registered_device *rdev;
f444de05
JB		 2066 struct net_device *netdev = NULL;
2067 struct wireless_dev *wdev;
a1e567c8 2068 int result = 0, rem_txq_params = 0;
31888487 2069 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2070 u32 changed;
2071 u8 retry_short = 0, retry_long = 0;
2072 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2073 u8 coverage_class = 0;
55682965 2074
5fe231e8
JB		 2075 ASSERT_RTNL();
2076
f444de05
JB		 2077 /*
2078 * Try to find the wiphy and netdev. Normally this
2079 * function shouldn't need the netdev, but this is
2080 * done for backward compatibility -- previously
2081 * setting the channel was done per wiphy, but now
2082 * it is per netdev. Previous userland like hostapd
2083 * also passed a netdev to set_wiphy, so that it is
2084 * possible to let that go to the right netdev!
2085 */
4bbf4d56 2086
f444de05
JB		 2087 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2088 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2089
7f2b8562 2090 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2091 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2092 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2093 else
f444de05 2094 netdev = NULL;
4bbf4d56
JB		 2095 }
2096
f444de05 2097 if (!netdev) {
878d9ec7
JB		 2098 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2099 info->attrs);
5fe231e8 2100 if (IS_ERR(rdev))
4c476991 2101 return PTR_ERR(rdev);
f444de05
JB		 2102 wdev = NULL;
2103 netdev = NULL;
2104 result = 0;
71fe96bf 2105 } else
f444de05 2106 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2107
2108 /*
2109 * end workaround code, by now the rdev is available
2110 * and locked, and wdev may or may not be NULL.
2111 */
4bbf4d56
JB		 2112
2113 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2114 result = cfg80211_dev_rename(
2115 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2116
4bbf4d56 2117 if (result)
7f2b8562 2118 return result;
31888487
JM		 2119
2120 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2121 struct ieee80211_txq_params txq_params;
2122 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2123
7f2b8562
YX		 2124 if (!rdev->ops->set_txq_params)
2125 return -EOPNOTSUPP;
31888487 2126
7f2b8562
YX		 2127 if (!netdev)
2128 return -EINVAL;
f70f01c2 2129
133a3ff2 2130 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2131 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2132 return -EINVAL;
133a3ff2 2133
7f2b8562
YX		 2134 if (!netif_running(netdev))
2135 return -ENETDOWN;
2b5f8b0b 2136
31888487
JM		 2137 nla_for_each_nested(nl_txq_params,
2138 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2139 rem_txq_params) {
ae811e21
JB		 2140 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2141 nla_data(nl_txq_params),
2142 nla_len(nl_txq_params),
2143 txq_params_policy);
2144 if (result)
2145 return result;
31888487
JM		 2146 result = parse_txq_params(tb, &txq_params);
2147 if (result)
7f2b8562 2148 return result;
31888487 2149
e35e4d28
HG		 2150 result = rdev_set_txq_params(rdev, netdev,
2151 &txq_params);
31888487 2152 if (result)
7f2b8562 2153 return result;
31888487
JM		 2154 }
2155 }
55682965 2156
72bdcf34 2157 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2158 result = __nl80211_set_channel(
2159 rdev,
2160 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2161 info);
72bdcf34 2162 if (result)
7f2b8562 2163 return result;
72bdcf34
JM		 2164 }
2165
98d2ff8b 2166 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2167 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2168 enum nl80211_tx_power_setting type;
2169 int idx, mbm = 0;
2170
c8442118
JB		 2171 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2172 txp_wdev = NULL;
2173
7f2b8562
YX		 2174 if (!rdev->ops->set_tx_power)
2175 return -EOPNOTSUPP;
98d2ff8b
JO		 2176
2177 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2178 type = nla_get_u32(info->attrs[idx]);
2179
2180 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2181 (type != NL80211_TX_POWER_AUTOMATIC))
2182 return -EINVAL;
98d2ff8b
JO		 2183
2184 if (type != NL80211_TX_POWER_AUTOMATIC) {
2185 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2186 mbm = nla_get_u32(info->attrs[idx]);
2187 }
2188
c8442118 2189 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2190 if (result)
7f2b8562 2191 return result;
98d2ff8b
JO		 2192 }
2193
afe0cbf8
BR		 2194 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2195 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2196 u32 tx_ant, rx_ant;
7f531e03
BR		 2197 if ((!rdev->wiphy.available_antennas_tx &&
2198 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2199 !rdev->ops->set_antenna)
2200 return -EOPNOTSUPP;
afe0cbf8
BR		 2201
2202 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2203 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2204
a7ffac95 2205 /* reject antenna configurations which don't match the
7f531e03
BR		 2206 * available antenna masks, except for the "all" mask */
2207 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2208 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2209 return -EINVAL;
a7ffac95 2210
7f531e03
BR		 2211 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2212 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2213
e35e4d28 2214 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2215 if (result)
7f2b8562 2216 return result;
afe0cbf8
BR		 2217 }
2218
b9a5f8ca
JM		 2219 changed = 0;
2220
2221 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2222 retry_short = nla_get_u8(
2223 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2224 if (retry_short == 0)
2225 return -EINVAL;
2226
b9a5f8ca
JM		 2227 changed |= WIPHY_PARAM_RETRY_SHORT;
2228 }
2229
2230 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2231 retry_long = nla_get_u8(
2232 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2233 if (retry_long == 0)
2234 return -EINVAL;
2235
b9a5f8ca
JM		 2236 changed |= WIPHY_PARAM_RETRY_LONG;
2237 }
2238
2239 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2240 frag_threshold = nla_get_u32(
2241 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2242 if (frag_threshold < 256)
2243 return -EINVAL;
2244
b9a5f8ca
JM		 2245 if (frag_threshold != (u32) -1) {
2246 /*
2247 * Fragments (apart from the last one) are required to
2248 * have even length. Make the fragmentation code
2249 * simpler by stripping LSB should someone try to use
2250 * odd threshold value.
2251 */
2252 frag_threshold &= ~0x1;
2253 }
2254 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2255 }
2256
2257 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2258 rts_threshold = nla_get_u32(
2259 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2260 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2261 }
2262
81077e82 2263 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2264 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2265 return -EINVAL;
2266
81077e82
LT		 2267 coverage_class = nla_get_u8(
2268 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2269 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2270 }
2271
3057dbfd
LB		 2272 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2273 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2274 return -EOPNOTSUPP;
2275
2276 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2277 }
2278
b9a5f8ca
JM		 2279 if (changed) {
2280 u8 old_retry_short, old_retry_long;
2281 u32 old_frag_threshold, old_rts_threshold;
81077e82 2282 u8 old_coverage_class;
b9a5f8ca 2283
7f2b8562
YX		 2284 if (!rdev->ops->set_wiphy_params)
2285 return -EOPNOTSUPP;
b9a5f8ca
JM		 2286
2287 old_retry_short = rdev->wiphy.retry_short;
2288 old_retry_long = rdev->wiphy.retry_long;
2289 old_frag_threshold = rdev->wiphy.frag_threshold;
2290 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2291 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2292
2293 if (changed & WIPHY_PARAM_RETRY_SHORT)
2294 rdev->wiphy.retry_short = retry_short;
2295 if (changed & WIPHY_PARAM_RETRY_LONG)
2296 rdev->wiphy.retry_long = retry_long;
2297 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2298 rdev->wiphy.frag_threshold = frag_threshold;
2299 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2300 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2301 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2302 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2303
e35e4d28 2304 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2305 if (result) {
2306 rdev->wiphy.retry_short = old_retry_short;
2307 rdev->wiphy.retry_long = old_retry_long;
2308 rdev->wiphy.frag_threshold = old_frag_threshold;
2309 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2310 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2311 }
2312 }
7f2b8562 2313 return 0;
55682965
JB		 2314}
2315
71bbc994
JB		 2316static inline u64 wdev_id(struct wireless_dev *wdev)
2317{
2318 return (u64)wdev->identifier |
f26cbf40 2319 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2320}
55682965 2321
683b6d3b 2322static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2323 const struct cfg80211_chan_def *chandef)
683b6d3b 2324{
601555cd
JB		 2325 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2326 return -EINVAL;
3d9d1d66 2327
683b6d3b
JB		 2328 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2329 chandef->chan->center_freq))
2330 return -ENOBUFS;
3d9d1d66
JB		 2331 switch (chandef->width) {
2332 case NL80211_CHAN_WIDTH_20_NOHT:
2333 case NL80211_CHAN_WIDTH_20:
2334 case NL80211_CHAN_WIDTH_40:
2335 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2336 cfg80211_get_chandef_type(chandef)))
2337 return -ENOBUFS;
2338 break;
2339 default:
2340 break;
2341 }
2342 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2343 return -ENOBUFS;
2344 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2345 return -ENOBUFS;
2346 if (chandef->center_freq2 &&
2347 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2348 return -ENOBUFS;
2349 return 0;
2350}
2351
15e47304 2352static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2353 struct cfg80211_registered_device *rdev,
8f894be2 2354 struct wireless_dev *wdev, bool removal)
55682965 2355{
72fb2abc 2356 struct net_device *dev = wdev->netdev;
8f894be2 2357 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2358 void *hdr;
2359
8f894be2
TB		 2360 if (removal)
2361 cmd = NL80211_CMD_DEL_INTERFACE;
2362
2363 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2364 if (!hdr)
2365 return -1;
2366
72fb2abc
JB		 2367 if (dev &&
2368 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2369 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2370 goto nla_put_failure;
2371
2372 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2373 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2374 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2375 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2376 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2377 rdev->devlist_generation ^
2378 (cfg80211_rdev_list_generation << 2)))
2379 goto nla_put_failure;
f5ea9120 2380
5b7ccaf3 2381 if (rdev->ops->get_channel) {
683b6d3b
JB		 2382 int ret;
2383 struct cfg80211_chan_def chandef;
2384
2385 ret = rdev_get_channel(rdev, wdev, &chandef);
2386 if (ret == 0) {
2387 if (nl80211_send_chandef(msg, &chandef))
2388 goto nla_put_failure;
2389 }
d91df0e3
PF		 2390 }
2391
b84e7a05
AQ		 2392 if (wdev->ssid_len) {
2393 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2394 goto nla_put_failure;
2395 }
2396
55682965
JB		 2397 return genlmsg_end(msg, hdr);
2398
2399 nla_put_failure:
bc3ed28c
TG		 2400 genlmsg_cancel(msg, hdr);
2401 return -EMSGSIZE;
55682965
JB		 2402}
2403
2404static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2405{
2406 int wp_idx = 0;
2407 int if_idx = 0;
2408 int wp_start = cb->args[0];
2409 int if_start = cb->args[1];
f5ea9120 2410 struct cfg80211_registered_device *rdev;
55682965
JB		 2411 struct wireless_dev *wdev;
2412
5fe231e8 2413 rtnl_lock();
f5ea9120
JB		 2414 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2415 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2416 continue;
bba95fef
JB		 2417 if (wp_idx < wp_start) {
2418 wp_idx++;
55682965 2419 continue;
bba95fef 2420 }
55682965
JB		 2421 if_idx = 0;
2422
89a54e48 2423 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2424 if (if_idx < if_start) {
2425 if_idx++;
55682965 2426 continue;
bba95fef 2427 }
15e47304 2428 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2429 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2430 rdev, wdev, false) < 0) {
bba95fef
JB		 2431 goto out;
2432 }
2433 if_idx++;
55682965 2434 }
bba95fef
JB		 2435
2436 wp_idx++;
55682965 2437 }
bba95fef 2438 out:
5fe231e8 2439 rtnl_unlock();
55682965
JB		 2440
2441 cb->args[0] = wp_idx;
2442 cb->args[1] = if_idx;
2443
2444 return skb->len;
2445}
2446
2447static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2448{
2449 struct sk_buff *msg;
1b8ec87a 2450 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2451 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2452
fd2120ca 2453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2454 if (!msg)
4c476991 2455 return -ENOMEM;
55682965 2456
15e47304 2457 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2458 rdev, wdev, false) < 0) {
4c476991
JB		 2459 nlmsg_free(msg);
2460 return -ENOBUFS;
2461 }
55682965 2462
134e6375 2463 return genlmsg_reply(msg, info);
55682965
JB		 2464}
2465
66f7ac50
MW		 2466static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2467 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2468 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2469 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2470 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2471 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2472 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2473};
2474
2475static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2476{
2477 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2478 int flag;
2479
2480 *mntrflags = 0;
2481
2482 if (!nla)
2483 return -EINVAL;
2484
2485 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2486 nla, mntr_flags_policy))
2487 return -EINVAL;
2488
2489 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2490 if (flags[flag])
2491 *mntrflags |= (1<<flag);
2492
2493 return 0;
2494}
2495
9bc383de 2496static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2497 struct net_device *netdev, u8 use_4addr,
2498 enum nl80211_iftype iftype)
9bc383de 2499{
ad4bb6f8 2500 if (!use_4addr) {
f350a0a8 2501 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2502 return -EBUSY;
9bc383de 2503 return 0;
ad4bb6f8 2504 }
9bc383de
JB		 2505
2506 switch (iftype) {
2507 case NL80211_IFTYPE_AP_VLAN:
2508 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2509 return 0;
2510 break;
2511 case NL80211_IFTYPE_STATION:
2512 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2513 return 0;
2514 break;
2515 default:
2516 break;
2517 }
2518
2519 return -EOPNOTSUPP;
2520}
2521
55682965
JB		 2522static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2523{
4c476991 2524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2525 struct vif_params params;
e36d56b6 2526 int err;
04a773ad 2527 enum nl80211_iftype otype, ntype;
4c476991 2528 struct net_device *dev = info->user_ptr[1];
92ffe055 2529 u32 _flags, *flags = NULL;
ac7f9cfa 2530 bool change = false;
55682965 2531
2ec600d6
LCC		 2532 memset(&params, 0, sizeof(params));
2533
04a773ad 2534 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2535
723b038d 2536 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2537 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2538 if (otype != ntype)
ac7f9cfa 2539 change = true;
4c476991
JB		 2540 if (ntype > NL80211_IFTYPE_MAX)
2541 return -EINVAL;
723b038d
JB		 2542 }
2543
92ffe055 2544 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2545 struct wireless_dev *wdev = dev->ieee80211_ptr;
2546
4c476991
JB		 2547 if (ntype != NL80211_IFTYPE_MESH_POINT)
2548 return -EINVAL;
29cbe68c
JB		 2549 if (netif_running(dev))
2550 return -EBUSY;
2551
2552 wdev_lock(wdev);
2553 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2554 IEEE80211_MAX_MESH_ID_LEN);
2555 wdev->mesh_id_up_len =
2556 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2557 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2558 wdev->mesh_id_up_len);
2559 wdev_unlock(wdev);
2ec600d6
LCC		 2560 }
2561
8b787643
FF		 2562 if (info->attrs[NL80211_ATTR_4ADDR]) {
2563 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2564 change = true;
ad4bb6f8 2565 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2566 if (err)
4c476991 2567 return err;
8b787643
FF		 2568 } else {
2569 params.use_4addr = -1;
2570 }
2571
92ffe055 2572 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2573 if (ntype != NL80211_IFTYPE_MONITOR)
2574 return -EINVAL;
92ffe055
JB		 2575 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2576 &_flags);
ac7f9cfa 2577 if (err)
4c476991 2578 return err;
ac7f9cfa
JB		 2579
2580 flags = &_flags;
2581 change = true;
92ffe055 2582 }
3b85875a 2583
18003297 2584 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2585 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2586 return -EOPNOTSUPP;
2587
ac7f9cfa 2588 if (change)
3d54d255 2589 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2590 else
2591 err = 0;
60719ffd 2592
9bc383de
JB		 2593 if (!err && params.use_4addr != -1)
2594 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2595
55682965
JB		 2596 return err;
2597}
2598
2599static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2600{
4c476991 2601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2602 struct vif_params params;
84efbb84 2603 struct wireless_dev *wdev;
8f894be2 2604 struct sk_buff *msg, *event;
55682965
JB		 2605 int err;
2606 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2607 u32 flags;
55682965 2608
78f22b6a
JB		 2609 /* to avoid failing a new interface creation due to pending removal */
2610 cfg80211_destroy_ifaces(rdev);
2611
2ec600d6
LCC		 2612 memset(&params, 0, sizeof(params));
2613
55682965
JB		 2614 if (!info->attrs[NL80211_ATTR_IFNAME])
2615 return -EINVAL;
2616
2617 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2618 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2619 if (type > NL80211_IFTYPE_MAX)
2620 return -EINVAL;
2621 }
2622
79c97e97 2623 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2624 !(rdev->wiphy.interface_modes & (1 << type)))
2625 return -EOPNOTSUPP;
55682965 2626
e8f479b1
BG		 2627 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2628 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2629 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2630 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2631 ETH_ALEN);
2632 if (!is_valid_ether_addr(params.macaddr))
2633 return -EADDRNOTAVAIL;
2634 }
2635
9bc383de 2636 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2637 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2638 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2639 if (err)
4c476991 2640 return err;
9bc383de 2641 }
8b787643 2642
1c90f9d4
JB		 2643 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2644 if (!msg)
2645 return -ENOMEM;
2646
66f7ac50
MW		 2647 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2648 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2649 &flags);
e057d3c3 2650
18003297 2651 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2652 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2653 return -EOPNOTSUPP;
2654
e35e4d28
HG		 2655 wdev = rdev_add_virtual_intf(rdev,
2656 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2657 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2658 if (WARN_ON(!wdev)) {
2659 nlmsg_free(msg);
2660 return -EPROTO;
2661 } else if (IS_ERR(wdev)) {
1c90f9d4 2662 nlmsg_free(msg);
84efbb84 2663 return PTR_ERR(wdev);
1c90f9d4 2664 }
2ec600d6 2665
18e5ca65 2666 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2667 wdev->owner_nlportid = info->snd_portid;
2668
98104fde
JB		 2669 switch (type) {
2670 case NL80211_IFTYPE_MESH_POINT:
2671 if (!info->attrs[NL80211_ATTR_MESH_ID])
2672 break;
29cbe68c
JB		 2673 wdev_lock(wdev);
2674 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2675 IEEE80211_MAX_MESH_ID_LEN);
2676 wdev->mesh_id_up_len =
2677 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2678 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2679 wdev->mesh_id_up_len);
2680 wdev_unlock(wdev);
98104fde
JB		 2681 break;
2682 case NL80211_IFTYPE_P2P_DEVICE:
2683 /*
2684 * P2P Device doesn't have a netdev, so doesn't go
2685 * through the netdev notifier and must be added here
2686 */
2687 mutex_init(&wdev->mtx);
2688 INIT_LIST_HEAD(&wdev->event_list);
2689 spin_lock_init(&wdev->event_lock);
2690 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2691 spin_lock_init(&wdev->mgmt_registrations_lock);
2692
98104fde
JB		 2693 wdev->identifier = ++rdev->wdev_id;
2694 list_add_rcu(&wdev->list, &rdev->wdev_list);
2695 rdev->devlist_generation++;
98104fde
JB		 2696 break;
2697 default:
2698 break;
29cbe68c
JB		 2699 }
2700
15e47304 2701 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2702 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2703 nlmsg_free(msg);
2704 return -ENOBUFS;
2705 }
2706
8f894be2
TB		 2707 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2708 if (event) {
2709 if (nl80211_send_iface(event, 0, 0, 0,
2710 rdev, wdev, false) < 0) {
2711 nlmsg_free(event);
2712 goto out;
2713 }
2714
2715 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2716 event, 0, NL80211_MCGRP_CONFIG,
2717 GFP_KERNEL);
2718 }
2719
2720out:
1c90f9d4 2721 return genlmsg_reply(msg, info);
55682965
JB		 2722}
2723
2724static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2725{
4c476991 2726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2727 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2728 struct sk_buff *msg;
2729 int status;
55682965 2730
4c476991
JB		 2731 if (!rdev->ops->del_virtual_intf)
2732 return -EOPNOTSUPP;
55682965 2733
8f894be2
TB		 2734 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2735 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2736 nlmsg_free(msg);
2737 msg = NULL;
2738 }
2739
84efbb84
JB		 2740 /*
2741 * If we remove a wireless device without a netdev then clear
2742 * user_ptr[1] so that nl80211_post_doit won't dereference it
2743 * to check if it needs to do dev_put(). Otherwise it crashes
2744 * since the wdev has been freed, unlike with a netdev where
2745 * we need the dev_put() for the netdev to really be freed.
2746 */
2747 if (!wdev->netdev)
2748 info->user_ptr[1] = NULL;
2749
8f894be2
TB		 2750 status = rdev_del_virtual_intf(rdev, wdev);
2751 if (status >= 0 && msg)
2752 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2753 msg, 0, NL80211_MCGRP_CONFIG,
2754 GFP_KERNEL);
2755 else
2756 nlmsg_free(msg);
2757
2758 return status;
55682965
JB		 2759}
2760
1d9d9213
SW		 2761static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2762{
2763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2764 struct net_device *dev = info->user_ptr[1];
2765 u16 noack_map;
2766
2767 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2768 return -EINVAL;
2769
2770 if (!rdev->ops->set_noack_map)
2771 return -EOPNOTSUPP;
2772
2773 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2774
e35e4d28 2775 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2776}
2777
41ade00f
JB		 2778struct get_key_cookie {
2779 struct sk_buff *msg;
2780 int error;
b9454e83 2781 int idx;
41ade00f
JB		 2782};
2783
2784static void get_key_callback(void *c, struct key_params *params)
2785{
b9454e83 2786 struct nlattr *key;
41ade00f
JB		 2787 struct get_key_cookie *cookie = c;
2788
9360ffd1
DM		 2789 if ((params->key &&
2790 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2791 params->key_len, params->key)) ||
2792 (params->seq &&
2793 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2794 params->seq_len, params->seq)) ||
2795 (params->cipher &&
2796 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2797 params->cipher)))
2798 goto nla_put_failure;
41ade00f 2799
b9454e83
JB		 2800 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2801 if (!key)
2802 goto nla_put_failure;
2803
9360ffd1
DM		 2804 if ((params->key &&
2805 nla_put(cookie->msg, NL80211_KEY_DATA,
2806 params->key_len, params->key)) ||
2807 (params->seq &&
2808 nla_put(cookie->msg, NL80211_KEY_SEQ,
2809 params->seq_len, params->seq)) ||
2810 (params->cipher &&
2811 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2812 params->cipher)))
2813 goto nla_put_failure;
b9454e83 2814
9360ffd1
DM		 2815 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2816 goto nla_put_failure;
b9454e83
JB		 2817
2818 nla_nest_end(cookie->msg, key);
2819
41ade00f
JB		 2820 return;
2821 nla_put_failure:
2822 cookie->error = 1;
2823}
2824
2825static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2826{
4c476991 2827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2828 int err;
4c476991 2829 struct net_device *dev = info->user_ptr[1];
41ade00f 2830 u8 key_idx = 0;
e31b8213
JB		 2831 const u8 *mac_addr = NULL;
2832 bool pairwise;
41ade00f
JB		 2833 struct get_key_cookie cookie = {
2834 .error = 0,
2835 };
2836 void *hdr;
2837 struct sk_buff *msg;
2838
2839 if (info->attrs[NL80211_ATTR_KEY_IDX])
2840 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2841
3cfcf6ac 2842 if (key_idx > 5)
41ade00f
JB		 2843 return -EINVAL;
2844
2845 if (info->attrs[NL80211_ATTR_MAC])
2846 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2847
e31b8213
JB		 2848 pairwise = !!mac_addr;
2849 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2850 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2851 if (kt >= NUM_NL80211_KEYTYPES)
2852 return -EINVAL;
2853 if (kt != NL80211_KEYTYPE_GROUP &&
2854 kt != NL80211_KEYTYPE_PAIRWISE)
2855 return -EINVAL;
2856 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2857 }
2858
4c476991
JB		 2859 if (!rdev->ops->get_key)
2860 return -EOPNOTSUPP;
41ade00f 2861
fd2120ca 2862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2863 if (!msg)
2864 return -ENOMEM;
41ade00f 2865
15e47304 2866 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2867 NL80211_CMD_NEW_KEY);
cb35fba3 2868 if (!hdr)
9fe271af 2869 goto nla_put_failure;
41ade00f
JB		 2870
2871 cookie.msg = msg;
b9454e83 2872 cookie.idx = key_idx;
41ade00f 2873
9360ffd1
DM		 2874 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2875 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2876 goto nla_put_failure;
2877 if (mac_addr &&
2878 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2879 goto nla_put_failure;
41ade00f 2880
e31b8213
JB		 2881 if (pairwise && mac_addr &&
2882 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2883 return -ENOENT;
2884
e35e4d28
HG		 2885 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2886 get_key_callback);
41ade00f
JB		 2887
2888 if (err)
6c95e2a2 2889 goto free_msg;
41ade00f
JB		 2890
2891 if (cookie.error)
2892 goto nla_put_failure;
2893
2894 genlmsg_end(msg, hdr);
4c476991 2895 return genlmsg_reply(msg, info);
41ade00f
JB		 2896
2897 nla_put_failure:
2898 err = -ENOBUFS;
6c95e2a2 2899 free_msg:
41ade00f 2900 nlmsg_free(msg);
41ade00f
JB		 2901 return err;
2902}
2903
2904static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2905{
4c476991 2906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2907 struct key_parse key;
41ade00f 2908 int err;
4c476991 2909 struct net_device *dev = info->user_ptr[1];
41ade00f 2910
b9454e83
JB		 2911 err = nl80211_parse_key(info, &key);
2912 if (err)
2913 return err;
41ade00f 2914
b9454e83 2915 if (key.idx < 0)
41ade00f
JB		 2916 return -EINVAL;
2917
b9454e83
JB		 2918 /* only support setting default key */
2919 if (!key.def && !key.defmgmt)
41ade00f
JB		 2920 return -EINVAL;
2921
dbd2fd65 2922 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2923
dbd2fd65
JB		 2924 if (key.def) {
2925 if (!rdev->ops->set_default_key) {
2926 err = -EOPNOTSUPP;
2927 goto out;
2928 }
41ade00f 2929
dbd2fd65
JB		 2930 err = nl80211_key_allowed(dev->ieee80211_ptr);
2931 if (err)
2932 goto out;
2933
e35e4d28 2934 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2935 key.def_uni, key.def_multi);
2936
2937 if (err)
2938 goto out;
fffd0934 2939
3d23e349 2940#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2941 dev->ieee80211_ptr->wext.default_key = key.idx;
2942#endif
2943 } else {
2944 if (key.def_uni || !key.def_multi) {
2945 err = -EINVAL;
2946 goto out;
2947 }
2948
2949 if (!rdev->ops->set_default_mgmt_key) {
2950 err = -EOPNOTSUPP;
2951 goto out;
2952 }
2953
2954 err = nl80211_key_allowed(dev->ieee80211_ptr);
2955 if (err)
2956 goto out;
2957
e35e4d28 2958 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2959 if (err)
2960 goto out;
2961
2962#ifdef CONFIG_CFG80211_WEXT
2963 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2964#endif
dbd2fd65
JB		 2965 }
2966
2967 out:
fffd0934 2968 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2969
41ade00f
JB		 2970 return err;
2971}
2972
2973static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2974{
4c476991 2975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2976 int err;
4c476991 2977 struct net_device *dev = info->user_ptr[1];
b9454e83 2978 struct key_parse key;
e31b8213 2979 const u8 *mac_addr = NULL;
41ade00f 2980
b9454e83
JB		 2981 err = nl80211_parse_key(info, &key);
2982 if (err)
2983 return err;
41ade00f 2984
b9454e83 2985 if (!key.p.key)
41ade00f
JB		 2986 return -EINVAL;
2987
41ade00f
JB		 2988 if (info->attrs[NL80211_ATTR_MAC])
2989 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2990
e31b8213
JB		 2991 if (key.type == -1) {
2992 if (mac_addr)
2993 key.type = NL80211_KEYTYPE_PAIRWISE;
2994 else
2995 key.type = NL80211_KEYTYPE_GROUP;
2996 }
2997
2998 /* for now */
2999 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3000 key.type != NL80211_KEYTYPE_GROUP)
3001 return -EINVAL;
3002
4c476991
JB		 3003 if (!rdev->ops->add_key)
3004 return -EOPNOTSUPP;
25e47c18 3005
e31b8213
JB		 3006 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3007 key.type == NL80211_KEYTYPE_PAIRWISE,
3008 mac_addr))
4c476991 3009 return -EINVAL;
41ade00f 3010
fffd0934
JB		 3011 wdev_lock(dev->ieee80211_ptr);
3012 err = nl80211_key_allowed(dev->ieee80211_ptr);
3013 if (!err)
e35e4d28
HG		 3014 err = rdev_add_key(rdev, dev, key.idx,
3015 key.type == NL80211_KEYTYPE_PAIRWISE,
3016 mac_addr, &key.p);
fffd0934 3017 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3018
41ade00f
JB		 3019 return err;
3020}
3021
3022static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3023{
4c476991 3024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3025 int err;
4c476991 3026 struct net_device *dev = info->user_ptr[1];
41ade00f 3027 u8 *mac_addr = NULL;
b9454e83 3028 struct key_parse key;
41ade00f 3029
b9454e83
JB		 3030 err = nl80211_parse_key(info, &key);
3031 if (err)
3032 return err;
41ade00f
JB		 3033
3034 if (info->attrs[NL80211_ATTR_MAC])
3035 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3036
e31b8213
JB		 3037 if (key.type == -1) {
3038 if (mac_addr)
3039 key.type = NL80211_KEYTYPE_PAIRWISE;
3040 else
3041 key.type = NL80211_KEYTYPE_GROUP;
3042 }
3043
3044 /* for now */
3045 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3046 key.type != NL80211_KEYTYPE_GROUP)
3047 return -EINVAL;
3048
4c476991
JB		 3049 if (!rdev->ops->del_key)
3050 return -EOPNOTSUPP;
41ade00f 3051
fffd0934
JB		 3052 wdev_lock(dev->ieee80211_ptr);
3053 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3054
3055 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3056 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3057 err = -ENOENT;
3058
fffd0934 3059 if (!err)
e35e4d28
HG		 3060 err = rdev_del_key(rdev, dev, key.idx,
3061 key.type == NL80211_KEYTYPE_PAIRWISE,
3062 mac_addr);
41ade00f 3063
3d23e349 3064#ifdef CONFIG_CFG80211_WEXT
08645126 3065 if (!err) {
b9454e83 3066 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3067 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3068 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3069 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3070 }
3071#endif
fffd0934 3072 wdev_unlock(dev->ieee80211_ptr);
08645126 3073
41ade00f
JB		 3074 return err;
3075}
3076
77765eaf
VT		 3077/* This function returns an error or the number of nested attributes */
3078static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3079{
3080 struct nlattr *attr;
3081 int n_entries = 0, tmp;
3082
3083 nla_for_each_nested(attr, nl_attr, tmp) {
3084 if (nla_len(attr) != ETH_ALEN)
3085 return -EINVAL;
3086
3087 n_entries++;
3088 }
3089
3090 return n_entries;
3091}
3092
3093/*
3094 * This function parses ACL information and allocates memory for ACL data.
3095 * On successful return, the calling function is responsible to free the
3096 * ACL buffer returned by this function.
3097 */
3098static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3099 struct genl_info *info)
3100{
3101 enum nl80211_acl_policy acl_policy;
3102 struct nlattr *attr;
3103 struct cfg80211_acl_data *acl;
3104 int i = 0, n_entries, tmp;
3105
3106 if (!wiphy->max_acl_mac_addrs)
3107 return ERR_PTR(-EOPNOTSUPP);
3108
3109 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3110 return ERR_PTR(-EINVAL);
3111
3112 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3113 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3114 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3115 return ERR_PTR(-EINVAL);
3116
3117 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3118 return ERR_PTR(-EINVAL);
3119
3120 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3121 if (n_entries < 0)
3122 return ERR_PTR(n_entries);
3123
3124 if (n_entries > wiphy->max_acl_mac_addrs)
3125 return ERR_PTR(-ENOTSUPP);
3126
3127 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3128 GFP_KERNEL);
3129 if (!acl)
3130 return ERR_PTR(-ENOMEM);
3131
3132 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3133 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3134 i++;
3135 }
3136
3137 acl->n_acl_entries = n_entries;
3138 acl->acl_policy = acl_policy;
3139
3140 return acl;
3141}
3142
3143static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3144{
3145 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3146 struct net_device *dev = info->user_ptr[1];
3147 struct cfg80211_acl_data *acl;
3148 int err;
3149
3150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3152 return -EOPNOTSUPP;
3153
3154 if (!dev->ieee80211_ptr->beacon_interval)
3155 return -EINVAL;
3156
3157 acl = parse_acl_data(&rdev->wiphy, info);
3158 if (IS_ERR(acl))
3159 return PTR_ERR(acl);
3160
3161 err = rdev_set_mac_acl(rdev, dev, acl);
3162
3163 kfree(acl);
3164
3165 return err;
3166}
3167
a1193be8 3168static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3169 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3170{
8860020e 3171 bool haveinfo = false;
ed1b6cc7 3172
a1193be8
SW		 3173 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3174 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3175 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3176 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3177 return -EINVAL;
3178
8860020e 3179 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3180
a1193be8
SW		 3181 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3182 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3183 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3184 if (!bcn->head_len)
3185 return -EINVAL;
3186 haveinfo = true;
ed1b6cc7
JB		 3187 }
3188
a1193be8
SW		 3189 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3190 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3191 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3192 haveinfo = true;
ed1b6cc7
JB		 3193 }
3194
4c476991
JB		 3195 if (!haveinfo)
3196 return -EINVAL;
3b85875a 3197
a1193be8
SW		 3198 if (attrs[NL80211_ATTR_IE]) {
3199 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3200 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3201 }
3202
a1193be8 3203 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3204 bcn->proberesp_ies =
a1193be8 3205 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3206 bcn->proberesp_ies_len =
a1193be8 3207 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3208 }
3209
a1193be8 3210 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3211 bcn->assocresp_ies =
a1193be8 3212 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3213 bcn->assocresp_ies_len =
a1193be8 3214 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3215 }
3216
a1193be8
SW		 3217 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3218 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3219 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3220 }
3221
8860020e
JB		 3222 return 0;
3223}
3224
46c1dd0c
FF		 3225static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3226 struct cfg80211_ap_settings *params)
3227{
3228 struct wireless_dev *wdev;
3229 bool ret = false;
3230
89a54e48 3231 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3232 if (wdev->iftype != NL80211_IFTYPE_AP &&
3233 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3234 continue;
3235
683b6d3b 3236 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3237 continue;
3238
683b6d3b 3239 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3240 ret = true;
3241 break;
3242 }
3243
46c1dd0c
FF		 3244 return ret;
3245}
3246
e39e5b5e
JM		 3247static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3248 enum nl80211_auth_type auth_type,
3249 enum nl80211_commands cmd)
3250{
3251 if (auth_type > NL80211_AUTHTYPE_MAX)
3252 return false;
3253
3254 switch (cmd) {
3255 case NL80211_CMD_AUTHENTICATE:
3256 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3257 auth_type == NL80211_AUTHTYPE_SAE)
3258 return false;
3259 return true;
3260 case NL80211_CMD_CONNECT:
3261 case NL80211_CMD_START_AP:
3262 /* SAE not supported yet */
3263 if (auth_type == NL80211_AUTHTYPE_SAE)
3264 return false;
3265 return true;
3266 default:
3267 return false;
3268 }
3269}
3270
8860020e
JB		 3271static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3272{
3273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3274 struct net_device *dev = info->user_ptr[1];
3275 struct wireless_dev *wdev = dev->ieee80211_ptr;
3276 struct cfg80211_ap_settings params;
3277 int err;
3278
3279 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3280 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3281 return -EOPNOTSUPP;
3282
3283 if (!rdev->ops->start_ap)
3284 return -EOPNOTSUPP;
3285
3286 if (wdev->beacon_interval)
3287 return -EALREADY;
3288
3289 memset(&params, 0, sizeof(params));
3290
3291 /* these are required for START_AP */
3292 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3293 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3294 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3295 return -EINVAL;
3296
a1193be8 3297 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3298 if (err)
3299 return err;
3300
3301 params.beacon_interval =
3302 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3303 params.dtim_period =
3304 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3305
3306 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3307 if (err)
3308 return err;
3309
3310 /*
3311 * In theory, some of these attributes should be required here
3312 * but since they were not used when the command was originally
3313 * added, keep them optional for old user space programs to let
3314 * them continue to work with drivers that do not need the
3315 * additional information -- drivers must check!
3316 */
3317 if (info->attrs[NL80211_ATTR_SSID]) {
3318 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3319 params.ssid_len =
3320 nla_len(info->attrs[NL80211_ATTR_SSID]);
3321 if (params.ssid_len == 0 ||
3322 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3323 return -EINVAL;
3324 }
3325
3326 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3327 params.hidden_ssid = nla_get_u32(
3328 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3329 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3330 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3331 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3332 return -EINVAL;
3333 }
3334
3335 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3336
3337 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3338 params.auth_type = nla_get_u32(
3339 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3340 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3341 NL80211_CMD_START_AP))
8860020e
JB		 3342 return -EINVAL;
3343 } else
3344 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3345
3346 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3347 NL80211_MAX_NR_CIPHER_SUITES);
3348 if (err)
3349 return err;
3350
1b658f11
VT		 3351 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3352 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3353 return -EOPNOTSUPP;
3354 params.inactivity_timeout = nla_get_u16(
3355 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3356 }
3357
53cabad7
JB		 3358 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3359 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3360 return -EINVAL;
3361 params.p2p_ctwindow =
3362 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3363 if (params.p2p_ctwindow > 127)
3364 return -EINVAL;
3365 if (params.p2p_ctwindow != 0 &&
3366 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3367 return -EINVAL;
3368 }
3369
3370 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3371 u8 tmp;
3372
3373 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3374 return -EINVAL;
3375 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3376 if (tmp > 1)
3377 return -EINVAL;
3378 params.p2p_opp_ps = tmp;
3379 if (params.p2p_opp_ps != 0 &&
3380 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3381 return -EINVAL;
3382 }
3383
aa430da4 3384 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3385 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3386 if (err)
3387 return err;
3388 } else if (wdev->preset_chandef.chan) {
3389 params.chandef = wdev->preset_chandef;
46c1dd0c 3390 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3391 return -EINVAL;
3392
174e0cd2
IP		 3393 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3394 wdev->iftype))
aa430da4
JB		 3395 return -EINVAL;
3396
77765eaf
VT		 3397 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3398 params.acl = parse_acl_data(&rdev->wiphy, info);
3399 if (IS_ERR(params.acl))
3400 return PTR_ERR(params.acl);
3401 }
3402
18998c38
EP		 3403 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3404 params.smps_mode =
3405 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3406 switch (params.smps_mode) {
3407 case NL80211_SMPS_OFF:
3408 break;
3409 case NL80211_SMPS_STATIC:
3410 if (!(rdev->wiphy.features &
3411 NL80211_FEATURE_STATIC_SMPS))
3412 return -EINVAL;
3413 break;
3414 case NL80211_SMPS_DYNAMIC:
3415 if (!(rdev->wiphy.features &
3416 NL80211_FEATURE_DYNAMIC_SMPS))
3417 return -EINVAL;
3418 break;
3419 default:
3420 return -EINVAL;
3421 }
3422 } else {
3423 params.smps_mode = NL80211_SMPS_OFF;
3424 }
3425
c56589ed 3426 wdev_lock(wdev);
e35e4d28 3427 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3428 if (!err) {
683b6d3b 3429 wdev->preset_chandef = params.chandef;
8860020e 3430 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3431 wdev->chandef = params.chandef;
06e191e2
AQ		 3432 wdev->ssid_len = params.ssid_len;
3433 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3434 }
c56589ed 3435 wdev_unlock(wdev);
77765eaf
VT		 3436
3437 kfree(params.acl);
3438
56d1893d 3439 return err;
ed1b6cc7
JB		 3440}
3441
8860020e
JB		 3442static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3443{
3444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3445 struct net_device *dev = info->user_ptr[1];
3446 struct wireless_dev *wdev = dev->ieee80211_ptr;
3447 struct cfg80211_beacon_data params;
3448 int err;
3449
3450 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3451 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3452 return -EOPNOTSUPP;
3453
3454 if (!rdev->ops->change_beacon)
3455 return -EOPNOTSUPP;
3456
3457 if (!wdev->beacon_interval)
3458 return -EINVAL;
3459
a1193be8 3460 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3461 if (err)
3462 return err;
3463
c56589ed
SW		 3464 wdev_lock(wdev);
3465 err = rdev_change_beacon(rdev, dev, &params);
3466 wdev_unlock(wdev);
3467
3468 return err;
8860020e
JB		 3469}
3470
3471static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3472{
4c476991
JB		 3473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3474 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3475
7c8d5e03 3476 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3477}
3478
5727ef1b
JB		 3479static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3480 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3481 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3482 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3483 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3484 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3485 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3486};
3487
eccb8e8f 3488static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3489 enum nl80211_iftype iftype,
eccb8e8f 3490 struct station_parameters *params)
5727ef1b
JB		 3491{
3492 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3493 struct nlattr *nla;
5727ef1b
JB		 3494 int flag;
3495
eccb8e8f
JB		 3496 /*
3497 * Try parsing the new attribute first so userspace
3498 * can specify both for older kernels.
3499 */
3500 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3501 if (nla) {
3502 struct nl80211_sta_flag_update *sta_flags;
3503
3504 sta_flags = nla_data(nla);
3505 params->sta_flags_mask = sta_flags->mask;
3506 params->sta_flags_set = sta_flags->set;
77ee7c89 3507 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3508 if ((params->sta_flags_mask |
3509 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3510 return -EINVAL;
3511 return 0;
3512 }
3513
3514 /* if present, parse the old attribute */
5727ef1b 3515
eccb8e8f 3516 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3517 if (!nla)
3518 return 0;
3519
3520 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3521 nla, sta_flags_policy))
3522 return -EINVAL;
3523
bdd3ae3d
JB		 3524 /*
3525 * Only allow certain flags for interface types so that
3526 * other attributes are silently ignored. Remember that
3527 * this is backward compatibility code with old userspace
3528 * and shouldn't be hit in other cases anyway.
3529 */
3530 switch (iftype) {
3531 case NL80211_IFTYPE_AP:
3532 case NL80211_IFTYPE_AP_VLAN:
3533 case NL80211_IFTYPE_P2P_GO:
3534 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3535 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3536 BIT(NL80211_STA_FLAG_WME) |
3537 BIT(NL80211_STA_FLAG_MFP);
3538 break;
3539 case NL80211_IFTYPE_P2P_CLIENT:
3540 case NL80211_IFTYPE_STATION:
3541 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3542 BIT(NL80211_STA_FLAG_TDLS_PEER);
3543 break;
3544 case NL80211_IFTYPE_MESH_POINT:
3545 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3546 BIT(NL80211_STA_FLAG_MFP) |
3547 BIT(NL80211_STA_FLAG_AUTHORIZED);
3548 default:
3549 return -EINVAL;
3550 }
5727ef1b 3551
3383b5a6
JB		 3552 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3553 if (flags[flag]) {
eccb8e8f 3554 params->sta_flags_set |= (1<<flag);
5727ef1b 3555
3383b5a6
JB		 3556 /* no longer support new API additions in old API */
3557 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3558 return -EINVAL;
3559 }
3560 }
3561
5727ef1b
JB		 3562 return 0;
3563}
3564
c8dcfd8a
FF		 3565static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3566 int attr)
3567{
3568 struct nlattr *rate;
8eb41c8d
VK		 3569 u32 bitrate;
3570 u16 bitrate_compat;
c8dcfd8a
FF		 3571
3572 rate = nla_nest_start(msg, attr);
3573 if (!rate)
db9c64cf 3574 return false;
c8dcfd8a
FF		 3575
3576 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3577 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3578 /* report 16-bit bitrate only if we can */
3579 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3580 if (bitrate > 0 &&
3581 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3582 return false;
3583 if (bitrate_compat > 0 &&
3584 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3585 return false;
3586
3587 if (info->flags & RATE_INFO_FLAGS_MCS) {
3588 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3589 return false;
3590 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3591 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3592 return false;
3593 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3594 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3595 return false;
3596 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3597 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3598 return false;
3599 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3600 return false;
3601 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3602 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3603 return false;
3604 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3605 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3606 return false;
3607 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3608 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3609 return false;
3610 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3611 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3612 return false;
3613 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3614 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3615 return false;
3616 }
c8dcfd8a
FF		 3617
3618 nla_nest_end(msg, rate);
3619 return true;
c8dcfd8a
FF		 3620}
3621
119363c7
FF		 3622static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3623 int id)
3624{
3625 void *attr;
3626 int i = 0;
3627
3628 if (!mask)
3629 return true;
3630
3631 attr = nla_nest_start(msg, id);
3632 if (!attr)
3633 return false;
3634
3635 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3636 if (!(mask & BIT(i)))
3637 continue;
3638
3639 if (nla_put_u8(msg, i, signal[i]))
3640 return false;
3641 }
3642
3643 nla_nest_end(msg, attr);
3644
3645 return true;
3646}
3647
15e47304 3648static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3649 int flags,
3650 struct cfg80211_registered_device *rdev,
3651 struct net_device *dev,
98b62183 3652 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3653{
3654 void *hdr;
f4263c98 3655 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3656
15e47304 3657 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3658 if (!hdr)
3659 return -1;
3660
9360ffd1
DM		 3661 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3662 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3663 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3664 goto nla_put_failure;
f5ea9120 3665
2ec600d6
LCC		 3666 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3667 if (!sinfoattr)
fd5b74dc 3668 goto nla_put_failure;
9360ffd1
DM		 3669 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3670 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3671 sinfo->connected_time))
3672 goto nla_put_failure;
3673 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3674 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3675 sinfo->inactive_time))
3676 goto nla_put_failure;
42745e03
VK		 3677 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3678 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3679 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3680 (u32)sinfo->rx_bytes))
9360ffd1 3681 goto nla_put_failure;
42745e03 3682 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3683 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3684 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3685 (u32)sinfo->tx_bytes))
3686 goto nla_put_failure;
3687 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3688 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3689 sinfo->rx_bytes))
3690 goto nla_put_failure;
3691 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3692 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3693 sinfo->tx_bytes))
3694 goto nla_put_failure;
3695 if ((sinfo->filled & STATION_INFO_LLID) &&
3696 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3697 goto nla_put_failure;
3698 if ((sinfo->filled & STATION_INFO_PLID) &&
3699 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3700 goto nla_put_failure;
3701 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3702 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3703 sinfo->plink_state))
3704 goto nla_put_failure;
66266b3a
JL		 3705 switch (rdev->wiphy.signal_type) {
3706 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3707 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3708 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3709 sinfo->signal))
3710 goto nla_put_failure;
3711 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3712 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3713 sinfo->signal_avg))
3714 goto nla_put_failure;
66266b3a
JL		 3715 break;
3716 default:
3717 break;
3718 }
119363c7
FF		 3719 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3720 if (!nl80211_put_signal(msg, sinfo->chains,
3721 sinfo->chain_signal,
3722 NL80211_STA_INFO_CHAIN_SIGNAL))
3723 goto nla_put_failure;
3724 }
3725 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3726 if (!nl80211_put_signal(msg, sinfo->chains,
3727 sinfo->chain_signal_avg,
3728 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3729 goto nla_put_failure;
3730 }
420e7fab 3731 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3732 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3733 NL80211_STA_INFO_TX_BITRATE))
3734 goto nla_put_failure;
3735 }
3736 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3737 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3738 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3739 goto nla_put_failure;
420e7fab 3740 }
9360ffd1
DM		 3741 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3742 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3743 sinfo->rx_packets))
3744 goto nla_put_failure;
3745 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3746 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3747 sinfo->tx_packets))
3748 goto nla_put_failure;
3749 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3750 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3751 sinfo->tx_retries))
3752 goto nla_put_failure;
3753 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3754 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3755 sinfo->tx_failed))
3756 goto nla_put_failure;
867d849f
AQ		 3757 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3758 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3759 sinfo->expected_throughput))
3760 goto nla_put_failure;
9360ffd1
DM		 3761 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3762 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3763 sinfo->beacon_loss_count))
3764 goto nla_put_failure;
3b1c5a53
MP		 3765 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3766 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3767 sinfo->local_pm))
3768 goto nla_put_failure;
3769 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3770 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3771 sinfo->peer_pm))
3772 goto nla_put_failure;
3773 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3774 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3775 sinfo->nonpeer_pm))
3776 goto nla_put_failure;
f4263c98
PS		 3777 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3778 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3779 if (!bss_param)
3780 goto nla_put_failure;
3781
9360ffd1
DM		 3782 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3783 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3784 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3785 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3786 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3787 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3788 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3789 sinfo->bss_param.dtim_period) ||
3790 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3791 sinfo->bss_param.beacon_interval))
3792 goto nla_put_failure;
f4263c98
PS		 3793
3794 nla_nest_end(msg, bss_param);
3795 }
9360ffd1
DM		 3796 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3797 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3798 sizeof(struct nl80211_sta_flag_update),
3799 &sinfo->sta_flags))
3800 goto nla_put_failure;
7eab0f64
JL		 3801 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3802 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3803 sinfo->t_offset))
3804 goto nla_put_failure;
2ec600d6 3805 nla_nest_end(msg, sinfoattr);
fd5b74dc 3806
9360ffd1
DM		 3807 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3808 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3809 sinfo->assoc_req_ies))
3810 goto nla_put_failure;
50d3dfb7 3811
fd5b74dc
JB		 3812 return genlmsg_end(msg, hdr);
3813
3814 nla_put_failure:
bc3ed28c
TG		 3815 genlmsg_cancel(msg, hdr);
3816 return -EMSGSIZE;
fd5b74dc
JB		 3817}
3818
2ec600d6 3819static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3820 struct netlink_callback *cb)
2ec600d6 3821{
2ec600d6 3822 struct station_info sinfo;
1b8ec87a 3823 struct cfg80211_registered_device *rdev;
97990a06 3824 struct wireless_dev *wdev;
2ec600d6 3825 u8 mac_addr[ETH_ALEN];
97990a06 3826 int sta_idx = cb->args[2];
2ec600d6 3827 int err;
2ec600d6 3828
1b8ec87a 3829 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3830 if (err)
3831 return err;
bba95fef 3832
97990a06
JB		 3833 if (!wdev->netdev) {
3834 err = -EINVAL;
3835 goto out_err;
3836 }
3837
1b8ec87a 3838 if (!rdev->ops->dump_station) {
eec60b03 3839 err = -EOPNOTSUPP;
bba95fef
JB		 3840 goto out_err;
3841 }
3842
bba95fef 3843 while (1) {
f612cedf 3844 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3845 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3846 mac_addr, &sinfo);
bba95fef
JB		 3847 if (err == -ENOENT)
3848 break;
3849 if (err)
3b85875a 3850 goto out_err;
bba95fef
JB		 3851
3852 if (nl80211_send_station(skb,
15e47304 3853 NETLINK_CB(cb->skb).portid,
bba95fef 3854 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3855 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3856 &sinfo) < 0)
3857 goto out;
3858
3859 sta_idx++;
3860 }
3861
3862
3863 out:
97990a06 3864 cb->args[2] = sta_idx;
bba95fef 3865 err = skb->len;
bba95fef 3866 out_err:
1b8ec87a 3867 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3868
3869 return err;
2ec600d6 3870}
fd5b74dc 3871
5727ef1b
JB		 3872static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3873{
4c476991
JB		 3874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3875 struct net_device *dev = info->user_ptr[1];
2ec600d6 3876 struct station_info sinfo;
fd5b74dc
JB		 3877 struct sk_buff *msg;
3878 u8 *mac_addr = NULL;
4c476991 3879 int err;
fd5b74dc 3880
2ec600d6 3881 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3882
3883 if (!info->attrs[NL80211_ATTR_MAC])
3884 return -EINVAL;
3885
3886 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3887
4c476991
JB		 3888 if (!rdev->ops->get_station)
3889 return -EOPNOTSUPP;
3b85875a 3890
e35e4d28 3891 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3892 if (err)
4c476991 3893 return err;
2ec600d6 3894
fd2120ca 3895 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3896 if (!msg)
4c476991 3897 return -ENOMEM;
fd5b74dc 3898
15e47304 3899 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3900 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3901 nlmsg_free(msg);
3902 return -ENOBUFS;
3903 }
3b85875a 3904
4c476991 3905 return genlmsg_reply(msg, info);
5727ef1b
JB		 3906}
3907
77ee7c89
JB		 3908int cfg80211_check_station_change(struct wiphy *wiphy,
3909 struct station_parameters *params,
3910 enum cfg80211_station_type statype)
3911{
3912 if (params->listen_interval != -1)
3913 return -EINVAL;
c72e1140
AN		 3914 if (params->aid &&
3915 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3916 return -EINVAL;
3917
3918 /* When you run into this, adjust the code below for the new flag */
3919 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3920
3921 switch (statype) {
eef941e6
TP		 3922 case CFG80211_STA_MESH_PEER_KERNEL:
3923 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3924 /*
3925 * No ignoring the TDLS flag here -- the userspace mesh
3926 * code doesn't have the bug of including TDLS in the
3927 * mask everywhere.
3928 */
3929 if (params->sta_flags_mask &
3930 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3931 BIT(NL80211_STA_FLAG_MFP) |
3932 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3933 return -EINVAL;
3934 break;
3935 case CFG80211_STA_TDLS_PEER_SETUP:
3936 case CFG80211_STA_TDLS_PEER_ACTIVE:
3937 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3938 return -EINVAL;
3939 /* ignore since it can't change */
3940 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3941 break;
3942 default:
3943 /* disallow mesh-specific things */
3944 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3945 return -EINVAL;
3946 if (params->local_pm)
3947 return -EINVAL;
3948 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3949 return -EINVAL;
3950 }
3951
3952 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3953 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3954 /* TDLS can't be set, ... */
3955 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3956 return -EINVAL;
3957 /*
3958 * ... but don't bother the driver with it. This works around
3959 * a hostapd/wpa_supplicant issue -- it always includes the
3960 * TLDS_PEER flag in the mask even for AP mode.
3961 */
3962 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3963 }
3964
3965 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3966 /* reject other things that can't change */
3967 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3968 return -EINVAL;
3969 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3970 return -EINVAL;
3971 if (params->supported_rates)
3972 return -EINVAL;
3973 if (params->ext_capab || params->ht_capa || params->vht_capa)
3974 return -EINVAL;
3975 }
3976
3977 if (statype != CFG80211_STA_AP_CLIENT) {
3978 if (params->vlan)
3979 return -EINVAL;
3980 }
3981
3982 switch (statype) {
3983 case CFG80211_STA_AP_MLME_CLIENT:
3984 /* Use this only for authorizing/unauthorizing a station */
3985 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3986 return -EOPNOTSUPP;
3987 break;
3988 case CFG80211_STA_AP_CLIENT:
3989 /* accept only the listed bits */
3990 if (params->sta_flags_mask &
3991 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3992 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3993 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3994 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3995 BIT(NL80211_STA_FLAG_WME) |
3996 BIT(NL80211_STA_FLAG_MFP)))
3997 return -EINVAL;
3998
3999 /* but authenticated/associated only if driver handles it */
4000 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4001 params->sta_flags_mask &
4002 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4003 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4004 return -EINVAL;
4005 break;
4006 case CFG80211_STA_IBSS:
4007 case CFG80211_STA_AP_STA:
4008 /* reject any changes other than AUTHORIZED */
4009 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4010 return -EINVAL;
4011 break;
4012 case CFG80211_STA_TDLS_PEER_SETUP:
4013 /* reject any changes other than AUTHORIZED or WME */
4014 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4015 BIT(NL80211_STA_FLAG_WME)))
4016 return -EINVAL;
4017 /* force (at least) rates when authorizing */
4018 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4019 !params->supported_rates)
4020 return -EINVAL;
4021 break;
4022 case CFG80211_STA_TDLS_PEER_ACTIVE:
4023 /* reject any changes */
4024 return -EINVAL;
eef941e6 4025 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4026 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4027 return -EINVAL;
4028 break;
eef941e6 4029 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4030 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4031 return -EINVAL;
4032 break;
4033 }
4034
4035 return 0;
4036}
4037EXPORT_SYMBOL(cfg80211_check_station_change);
4038
5727ef1b 4039/*
c258d2de 4040 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4041 */
80b99899
JB		 4042static struct net_device *get_vlan(struct genl_info *info,
4043 struct cfg80211_registered_device *rdev)
5727ef1b 4044{
463d0183 4045 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4046 struct net_device *v;
4047 int ret;
4048
4049 if (!vlanattr)
4050 return NULL;
4051
4052 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4053 if (!v)
4054 return ERR_PTR(-ENODEV);
4055
4056 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4057 ret = -EINVAL;
4058 goto error;
5727ef1b 4059 }
80b99899 4060
77ee7c89
JB		 4061 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4062 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4063 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4064 ret = -EINVAL;
4065 goto error;
4066 }
4067
80b99899
JB		 4068 if (!netif_running(v)) {
4069 ret = -ENETDOWN;
4070 goto error;
4071 }
4072
4073 return v;
4074 error:
4075 dev_put(v);
4076 return ERR_PTR(ret);
5727ef1b
JB		 4077}
4078
94e860f1
JB		 4079static const struct nla_policy
4080nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4081 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4082 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4083};
4084
ff276691
JB		 4085static int nl80211_parse_sta_wme(struct genl_info *info,
4086 struct station_parameters *params)
df881293 4087{
df881293
JM		 4088 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4089 struct nlattr *nla;
4090 int err;
4091
df881293
JM		 4092 /* parse WME attributes if present */
4093 if (!info->attrs[NL80211_ATTR_STA_WME])
4094 return 0;
4095
4096 nla = info->attrs[NL80211_ATTR_STA_WME];
4097 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4098 nl80211_sta_wme_policy);
4099 if (err)
4100 return err;
4101
4102 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4103 params->uapsd_queues = nla_get_u8(
4104 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4105 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4106 return -EINVAL;
4107
4108 if (tb[NL80211_STA_WME_MAX_SP])
4109 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4110
4111 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4112 return -EINVAL;
4113
4114 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4115
4116 return 0;
4117}
4118
c01fc9ad
SD		 4119static int nl80211_parse_sta_channel_info(struct genl_info *info,
4120 struct station_parameters *params)
4121{
4122 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4123 params->supported_channels =
4124 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4125 params->supported_channels_len =
4126 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4127 /*
4128 * Need to include at least one (first channel, number of
4129 * channels) tuple for each subband, and must have proper
4130 * tuples for the rest of the data as well.
4131 */
4132 if (params->supported_channels_len < 2)
4133 return -EINVAL;
4134 if (params->supported_channels_len % 2)
4135 return -EINVAL;
4136 }
4137
4138 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4139 params->supported_oper_classes =
4140 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4141 params->supported_oper_classes_len =
4142 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4143 /*
4144 * The value of the Length field of the Supported Operating
4145 * Classes element is between 2 and 253.
4146 */
4147 if (params->supported_oper_classes_len < 2 ||
4148 params->supported_oper_classes_len > 253)
4149 return -EINVAL;
4150 }
4151 return 0;
4152}
4153
ff276691
JB		 4154static int nl80211_set_station_tdls(struct genl_info *info,
4155 struct station_parameters *params)
4156{
c01fc9ad 4157 int err;
ff276691 4158 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4159 if (info->attrs[NL80211_ATTR_PEER_AID])
4160 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4161 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4162 params->ht_capa =
4163 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4164 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4165 params->vht_capa =
4166 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4167
c01fc9ad
SD		 4168 err = nl80211_parse_sta_channel_info(info, params);
4169 if (err)
4170 return err;
4171
ff276691
JB		 4172 return nl80211_parse_sta_wme(info, params);
4173}
4174
5727ef1b
JB		 4175static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4176{
4c476991 4177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4178 struct net_device *dev = info->user_ptr[1];
5727ef1b 4179 struct station_parameters params;
77ee7c89
JB		 4180 u8 *mac_addr;
4181 int err;
5727ef1b
JB		 4182
4183 memset(&params, 0, sizeof(params));
4184
4185 params.listen_interval = -1;
4186
77ee7c89
JB		 4187 if (!rdev->ops->change_station)
4188 return -EOPNOTSUPP;
4189
5727ef1b
JB		 4190 if (info->attrs[NL80211_ATTR_STA_AID])
4191 return -EINVAL;
4192
4193 if (!info->attrs[NL80211_ATTR_MAC])
4194 return -EINVAL;
4195
4196 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4197
4198 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4199 params.supported_rates =
4200 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4201 params.supported_rates_len =
4202 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4203 }
4204
9d62a986
JM		 4205 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4206 params.capability =
4207 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4208 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4209 }
4210
4211 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4212 params.ext_capab =
4213 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4214 params.ext_capab_len =
4215 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4216 }
4217
df881293 4218 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4219 return -EINVAL;
36aedc90 4220
bdd3ae3d 4221 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4222 return -EINVAL;
4223
f8bacc21 4224 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4225 params.plink_action =
f8bacc21
JB		 4226 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4227 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4228 return -EINVAL;
4229 }
2ec600d6 4230
f8bacc21 4231 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4232 params.plink_state =
f8bacc21
JB		 4233 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4234 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4235 return -EINVAL;
4236 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4237 }
9c3990aa 4238
3b1c5a53
MP		 4239 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4240 enum nl80211_mesh_power_mode pm = nla_get_u32(
4241 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4242
4243 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4244 pm > NL80211_MESH_POWER_MAX)
4245 return -EINVAL;
4246
4247 params.local_pm = pm;
4248 }
4249
77ee7c89
JB		 4250 /* Include parameters for TDLS peer (will check later) */
4251 err = nl80211_set_station_tdls(info, &params);
4252 if (err)
4253 return err;
4254
4255 params.vlan = get_vlan(info, rdev);
4256 if (IS_ERR(params.vlan))
4257 return PTR_ERR(params.vlan);
4258
a97f4424
JB		 4259 switch (dev->ieee80211_ptr->iftype) {
4260 case NL80211_IFTYPE_AP:
4261 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4262 case NL80211_IFTYPE_P2P_GO:
074ac8df 4263 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4264 case NL80211_IFTYPE_STATION:
267335d6 4265 case NL80211_IFTYPE_ADHOC:
a97f4424 4266 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4267 break;
4268 default:
77ee7c89
JB		 4269 err = -EOPNOTSUPP;
4270 goto out_put_vlan;
034d655e
JB		 4271 }
4272
77ee7c89 4273 /* driver will call cfg80211_check_station_change() */
e35e4d28 4274 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4275
77ee7c89 4276 out_put_vlan:
5727ef1b
JB		 4277 if (params.vlan)
4278 dev_put(params.vlan);
3b85875a 4279
5727ef1b
JB		 4280 return err;
4281}
4282
4283static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4284{
4c476991 4285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4286 int err;
4c476991 4287 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4288 struct station_parameters params;
4289 u8 *mac_addr = NULL;
4290
4291 memset(&params, 0, sizeof(params));
4292
984c311b
JB		 4293 if (!rdev->ops->add_station)
4294 return -EOPNOTSUPP;
4295
5727ef1b
JB		 4296 if (!info->attrs[NL80211_ATTR_MAC])
4297 return -EINVAL;
4298
5727ef1b
JB		 4299 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4300 return -EINVAL;
4301
4302 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4303 return -EINVAL;
4304
5e4b6f56
JM		 4305 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4306 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4307 return -EINVAL;
4308
5727ef1b
JB		 4309 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4310 params.supported_rates =
4311 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4312 params.supported_rates_len =
4313 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4314 params.listen_interval =
4315 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4316
3d124ea2 4317 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4318 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4319 else
4320 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4321 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4322 return -EINVAL;
51b50fbe 4323
9d62a986
JM		 4324 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4325 params.capability =
4326 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4327 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4328 }
4329
4330 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4331 params.ext_capab =
4332 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4333 params.ext_capab_len =
4334 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4335 }
4336
36aedc90
JM		 4337 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4338 params.ht_capa =
4339 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4340
f461be3e
MP		 4341 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4342 params.vht_capa =
4343 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4344
60f4a7b1
MK		 4345 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4346 params.opmode_notif_used = true;
4347 params.opmode_notif =
4348 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4349 }
4350
f8bacc21 4351 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4352 params.plink_action =
f8bacc21
JB		 4353 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4354 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4355 return -EINVAL;
4356 }
96b78dff 4357
c01fc9ad
SD		 4358 err = nl80211_parse_sta_channel_info(info, &params);
4359 if (err)
4360 return err;
4361
ff276691
JB		 4362 err = nl80211_parse_sta_wme(info, &params);
4363 if (err)
4364 return err;
bdd90d5e 4365
bdd3ae3d 4366 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4367 return -EINVAL;
4368
77ee7c89
JB		 4369 /* When you run into this, adjust the code below for the new flag */
4370 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4371
bdd90d5e
JB		 4372 switch (dev->ieee80211_ptr->iftype) {
4373 case NL80211_IFTYPE_AP:
4374 case NL80211_IFTYPE_AP_VLAN:
4375 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4376 /* ignore WME attributes if iface/sta is not capable */
4377 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4378 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4379 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4380
bdd90d5e 4381 /* TDLS peers cannot be added */
3d124ea2
JM		 4382 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4383 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4384 return -EINVAL;
bdd90d5e
JB		 4385 /* but don't bother the driver with it */
4386 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4387
d582cffb
JB		 4388 /* allow authenticated/associated only if driver handles it */
4389 if (!(rdev->wiphy.features &
4390 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4391 params.sta_flags_mask &
4392 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4393 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4394 return -EINVAL;
4395
bdd90d5e
JB		 4396 /* must be last in here for error handling */
4397 params.vlan = get_vlan(info, rdev);
4398 if (IS_ERR(params.vlan))
4399 return PTR_ERR(params.vlan);
4400 break;
4401 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4402 /* ignore uAPSD data */
4403 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4404
d582cffb
JB		 4405 /* associated is disallowed */
4406 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4407 return -EINVAL;
bdd90d5e 4408 /* TDLS peers cannot be added */
3d124ea2
JM		 4409 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4410 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4411 return -EINVAL;
4412 break;
4413 case NL80211_IFTYPE_STATION:
93d08f0b 4414 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4415 /* ignore uAPSD data */
4416 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4417
77ee7c89
JB		 4418 /* these are disallowed */
4419 if (params.sta_flags_mask &
4420 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4421 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4422 return -EINVAL;
bdd90d5e
JB		 4423 /* Only TDLS peers can be added */
4424 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4425 return -EINVAL;
4426 /* Can only add if TDLS ... */
4427 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4428 return -EOPNOTSUPP;
4429 /* ... with external setup is supported */
4430 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4431 return -EOPNOTSUPP;
77ee7c89
JB		 4432 /*
4433 * Older wpa_supplicant versions always mark the TDLS peer
4434 * as authorized, but it shouldn't yet be.
4435 */
4436 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4437 break;
4438 default:
4439 return -EOPNOTSUPP;
c75786c9
EP		 4440 }
4441
bdd90d5e 4442 /* be aware of params.vlan when changing code here */
5727ef1b 4443
e35e4d28 4444 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4445
5727ef1b
JB		 4446 if (params.vlan)
4447 dev_put(params.vlan);
5727ef1b
JB		 4448 return err;
4449}
4450
4451static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4452{
4c476991
JB		 4453 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4454 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4455 struct station_del_parameters params;
4456
4457 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4458
4459 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4460 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4461
e80cf853 4462 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4463 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4464 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4465 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4466 return -EINVAL;
5727ef1b 4467
4c476991
JB		 4468 if (!rdev->ops->del_station)
4469 return -EOPNOTSUPP;
3b85875a 4470
98856866
JM		 4471 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4472 params.subtype =
4473 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4474 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4475 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4476 return -EINVAL;
4477 } else {
4478 /* Default to Deauthentication frame */
4479 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4480 }
4481
4482 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4483 params.reason_code =
4484 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4485 if (params.reason_code == 0)
4486 return -EINVAL; /* 0 is reserved */
4487 } else {
4488 /* Default to reason code 2 */
4489 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4490 }
4491
89c771e5 4492 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4493}
4494
15e47304 4495static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4496 int flags, struct net_device *dev,
4497 u8 *dst, u8 *next_hop,
4498 struct mpath_info *pinfo)
4499{
4500 void *hdr;
4501 struct nlattr *pinfoattr;
4502
1ef4c850 4503 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4504 if (!hdr)
4505 return -1;
4506
9360ffd1
DM		 4507 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4508 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4509 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4510 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4511 goto nla_put_failure;
f5ea9120 4512
2ec600d6
LCC		 4513 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4514 if (!pinfoattr)
4515 goto nla_put_failure;
9360ffd1
DM		 4516 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4517 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4518 pinfo->frame_qlen))
4519 goto nla_put_failure;
4520 if (((pinfo->filled & MPATH_INFO_SN) &&
4521 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4522 ((pinfo->filled & MPATH_INFO_METRIC) &&
4523 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4524 pinfo->metric)) ||
4525 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4526 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4527 pinfo->exptime)) ||
4528 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4529 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4530 pinfo->flags)) ||
4531 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4532 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4533 pinfo->discovery_timeout)) ||
4534 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4535 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4536 pinfo->discovery_retries)))
4537 goto nla_put_failure;
2ec600d6
LCC		 4538
4539 nla_nest_end(msg, pinfoattr);
4540
4541 return genlmsg_end(msg, hdr);
4542
4543 nla_put_failure:
bc3ed28c
TG		 4544 genlmsg_cancel(msg, hdr);
4545 return -EMSGSIZE;
2ec600d6
LCC		 4546}
4547
4548static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4549 struct netlink_callback *cb)
2ec600d6 4550{
2ec600d6 4551 struct mpath_info pinfo;
1b8ec87a 4552 struct cfg80211_registered_device *rdev;
97990a06 4553 struct wireless_dev *wdev;
2ec600d6
LCC		 4554 u8 dst[ETH_ALEN];
4555 u8 next_hop[ETH_ALEN];
97990a06 4556 int path_idx = cb->args[2];
2ec600d6 4557 int err;
2ec600d6 4558
1b8ec87a 4559 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4560 if (err)
4561 return err;
bba95fef 4562
1b8ec87a 4563 if (!rdev->ops->dump_mpath) {
eec60b03 4564 err = -EOPNOTSUPP;
bba95fef
JB		 4565 goto out_err;
4566 }
4567
97990a06 4568 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4569 err = -EOPNOTSUPP;
0448b5fc 4570 goto out_err;
eec60b03
JM		 4571 }
4572
bba95fef 4573 while (1) {
1b8ec87a 4574 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4575 next_hop, &pinfo);
bba95fef 4576 if (err == -ENOENT)
2ec600d6 4577 break;
bba95fef 4578 if (err)
3b85875a 4579 goto out_err;
2ec600d6 4580
15e47304 4581 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4582 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4583 wdev->netdev, dst, next_hop,
bba95fef
JB		 4584 &pinfo) < 0)
4585 goto out;
2ec600d6 4586
bba95fef 4587 path_idx++;
2ec600d6 4588 }
2ec600d6 4589
2ec600d6 4590
bba95fef 4591 out:
97990a06 4592 cb->args[2] = path_idx;
bba95fef 4593 err = skb->len;
bba95fef 4594 out_err:
1b8ec87a 4595 nl80211_finish_wdev_dump(rdev);
bba95fef 4596 return err;
2ec600d6
LCC		 4597}
4598
4599static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4600{
4c476991 4601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4602 int err;
4c476991 4603 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4604 struct mpath_info pinfo;
4605 struct sk_buff *msg;
4606 u8 *dst = NULL;
4607 u8 next_hop[ETH_ALEN];
4608
4609 memset(&pinfo, 0, sizeof(pinfo));
4610
4611 if (!info->attrs[NL80211_ATTR_MAC])
4612 return -EINVAL;
4613
4614 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4615
4c476991
JB		 4616 if (!rdev->ops->get_mpath)
4617 return -EOPNOTSUPP;
2ec600d6 4618
4c476991
JB		 4619 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4620 return -EOPNOTSUPP;
eec60b03 4621
e35e4d28 4622 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4623 if (err)
4c476991 4624 return err;
2ec600d6 4625
fd2120ca 4626 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4627 if (!msg)
4c476991 4628 return -ENOMEM;
2ec600d6 4629
15e47304 4630 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4631 dev, dst, next_hop, &pinfo) < 0) {
4632 nlmsg_free(msg);
4633 return -ENOBUFS;
4634 }
3b85875a 4635
4c476991 4636 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4637}
4638
4639static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4640{
4c476991
JB		 4641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4642 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4643 u8 *dst = NULL;
4644 u8 *next_hop = NULL;
4645
4646 if (!info->attrs[NL80211_ATTR_MAC])
4647 return -EINVAL;
4648
4649 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4650 return -EINVAL;
4651
4652 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4653 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4654
4c476991
JB		 4655 if (!rdev->ops->change_mpath)
4656 return -EOPNOTSUPP;
35a8efe1 4657
4c476991
JB		 4658 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4659 return -EOPNOTSUPP;
2ec600d6 4660
e35e4d28 4661 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4662}
4c476991 4663
2ec600d6
LCC		 4664static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4665{
4c476991
JB		 4666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4667 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4668 u8 *dst = NULL;
4669 u8 *next_hop = NULL;
4670
4671 if (!info->attrs[NL80211_ATTR_MAC])
4672 return -EINVAL;
4673
4674 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4675 return -EINVAL;
4676
4677 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4678 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4679
4c476991
JB		 4680 if (!rdev->ops->add_mpath)
4681 return -EOPNOTSUPP;
35a8efe1 4682
4c476991
JB		 4683 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4684 return -EOPNOTSUPP;
2ec600d6 4685
e35e4d28 4686 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4687}
4688
4689static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4690{
4c476991
JB		 4691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4692 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4693 u8 *dst = NULL;
4694
4695 if (info->attrs[NL80211_ATTR_MAC])
4696 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4697
4c476991
JB		 4698 if (!rdev->ops->del_mpath)
4699 return -EOPNOTSUPP;
3b85875a 4700
e35e4d28 4701 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4702}
4703
66be7d2b
HR		 4704static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4705{
4706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4707 int err;
4708 struct net_device *dev = info->user_ptr[1];
4709 struct mpath_info pinfo;
4710 struct sk_buff *msg;
4711 u8 *dst = NULL;
4712 u8 mpp[ETH_ALEN];
4713
4714 memset(&pinfo, 0, sizeof(pinfo));
4715
4716 if (!info->attrs[NL80211_ATTR_MAC])
4717 return -EINVAL;
4718
4719 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4720
4721 if (!rdev->ops->get_mpp)
4722 return -EOPNOTSUPP;
4723
4724 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4725 return -EOPNOTSUPP;
4726
4727 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4728 if (err)
4729 return err;
4730
4731 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4732 if (!msg)
4733 return -ENOMEM;
4734
4735 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4736 dev, dst, mpp, &pinfo) < 0) {
4737 nlmsg_free(msg);
4738 return -ENOBUFS;
4739 }
4740
4741 return genlmsg_reply(msg, info);
4742}
4743
4744static int nl80211_dump_mpp(struct sk_buff *skb,
4745 struct netlink_callback *cb)
4746{
4747 struct mpath_info pinfo;
4748 struct cfg80211_registered_device *rdev;
4749 struct wireless_dev *wdev;
4750 u8 dst[ETH_ALEN];
4751 u8 mpp[ETH_ALEN];
4752 int path_idx = cb->args[2];
4753 int err;
4754
4755 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4756 if (err)
4757 return err;
4758
4759 if (!rdev->ops->dump_mpp) {
4760 err = -EOPNOTSUPP;
4761 goto out_err;
4762 }
4763
4764 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4765 err = -EOPNOTSUPP;
4766 goto out_err;
4767 }
4768
4769 while (1) {
4770 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4771 mpp, &pinfo);
4772 if (err == -ENOENT)
4773 break;
4774 if (err)
4775 goto out_err;
4776
4777 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4778 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4779 wdev->netdev, dst, mpp,
4780 &pinfo) < 0)
4781 goto out;
4782
4783 path_idx++;
4784 }
4785
4786 out:
4787 cb->args[2] = path_idx;
4788 err = skb->len;
4789 out_err:
4790 nl80211_finish_wdev_dump(rdev);
4791 return err;
4792}
4793
9f1ba906
JM		 4794static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4795{
4c476991
JB		 4796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4797 struct net_device *dev = info->user_ptr[1];
c56589ed 4798 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4799 struct bss_parameters params;
c56589ed 4800 int err;
9f1ba906
JM		 4801
4802 memset(&params, 0, sizeof(params));
4803 /* default to not changing parameters */
4804 params.use_cts_prot = -1;
4805 params.use_short_preamble = -1;
4806 params.use_short_slot_time = -1;
fd8aaaf3 4807 params.ap_isolate = -1;
50b12f59 4808 params.ht_opmode = -1;
53cabad7
JB		 4809 params.p2p_ctwindow = -1;
4810 params.p2p_opp_ps = -1;
9f1ba906
JM		 4811
4812 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4813 params.use_cts_prot =
4814 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4815 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4816 params.use_short_preamble =
4817 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4818 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4819 params.use_short_slot_time =
4820 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4821 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4822 params.basic_rates =
4823 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4824 params.basic_rates_len =
4825 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4826 }
fd8aaaf3
FF		 4827 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4828 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4829 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4830 params.ht_opmode =
4831 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4832
53cabad7
JB		 4833 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4834 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4835 return -EINVAL;
4836 params.p2p_ctwindow =
4837 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4838 if (params.p2p_ctwindow < 0)
4839 return -EINVAL;
4840 if (params.p2p_ctwindow != 0 &&
4841 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4842 return -EINVAL;
4843 }
4844
4845 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4846 u8 tmp;
4847
4848 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4849 return -EINVAL;
4850 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4851 if (tmp > 1)
4852 return -EINVAL;
4853 params.p2p_opp_ps = tmp;
4854 if (params.p2p_opp_ps &&
4855 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4856 return -EINVAL;
4857 }
4858
4c476991
JB		 4859 if (!rdev->ops->change_bss)
4860 return -EOPNOTSUPP;
9f1ba906 4861
074ac8df 4862 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4863 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4864 return -EOPNOTSUPP;
3b85875a 4865
c56589ed
SW		 4866 wdev_lock(wdev);
4867 err = rdev_change_bss(rdev, dev, &params);
4868 wdev_unlock(wdev);
4869
4870 return err;
9f1ba906
JM		 4871}
4872
b54452b0 4873static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4874 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4875 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4876 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4877 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4878 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4879 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4880 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4881};
4882
4883static int parse_reg_rule(struct nlattr *tb[],
4884 struct ieee80211_reg_rule *reg_rule)
4885{
4886 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4887 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4888
4889 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4890 return -EINVAL;
4891 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4892 return -EINVAL;
4893 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4894 return -EINVAL;
b0dfd2ea
JD		 4895 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4896 return -EINVAL;
b2e1b302
LR		 4897 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4898 return -EINVAL;
4899
4900 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4901
4902 freq_range->start_freq_khz =
4903 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4904 freq_range->end_freq_khz =
4905 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4906 freq_range->max_bandwidth_khz =
4907 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4908
4909 power_rule->max_eirp =
4910 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4911
4912 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4913 power_rule->max_antenna_gain =
4914 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4915
089027e5
JD		 4916 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4917 reg_rule->dfs_cac_ms =
4918 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4919
b2e1b302
LR		 4920 return 0;
4921}
4922
4923static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4924{
b2e1b302 4925 char *data = NULL;
57b5ce07 4926 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4927
80778f18
LR		 4928 /*
4929 * You should only get this when cfg80211 hasn't yet initialized
4930 * completely when built-in to the kernel right between the time
4931 * window between nl80211_init() and regulatory_init(), if that is
4932 * even possible.
4933 */
458f4f9e 4934 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4935 return -EINPROGRESS;
80778f18 4936
57b5ce07
LR		 4937 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4938 user_reg_hint_type =
4939 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4940 else
4941 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4942
4943 switch (user_reg_hint_type) {
4944 case NL80211_USER_REG_HINT_USER:
4945 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4946 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4947 return -EINVAL;
4948
4949 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4950 return regulatory_hint_user(data, user_reg_hint_type);
4951 case NL80211_USER_REG_HINT_INDOOR:
4952 return regulatory_hint_indoor_user();
57b5ce07
LR		 4953 default:
4954 return -EINVAL;
4955 }
b2e1b302
LR		 4956}
4957
24bdd9f4 4958static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4959 struct genl_info *info)
93da9cc1 4960{
4c476991 4961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4962 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4963 struct wireless_dev *wdev = dev->ieee80211_ptr;
4964 struct mesh_config cur_params;
4965 int err = 0;
93da9cc1 4966 void *hdr;
4967 struct nlattr *pinfoattr;
4968 struct sk_buff *msg;
4969
29cbe68c
JB		 4970 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4971 return -EOPNOTSUPP;
4972
24bdd9f4 4973 if (!rdev->ops->get_mesh_config)
4c476991 4974 return -EOPNOTSUPP;
f3f92586 4975
29cbe68c
JB		 4976 wdev_lock(wdev);
4977 /* If not connected, get default parameters */
4978 if (!wdev->mesh_id_len)
4979 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4980 else
e35e4d28 4981 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4982 wdev_unlock(wdev);
4983
93da9cc1 4984 if (err)
4c476991 4985 return err;
93da9cc1 4986
4987 /* Draw up a netlink message to send back */
fd2120ca 4988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4989 if (!msg)
4990 return -ENOMEM;
15e47304 4991 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4992 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4993 if (!hdr)
efe1cf0c 4994 goto out;
24bdd9f4 4995 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4996 if (!pinfoattr)
4997 goto nla_put_failure;
9360ffd1
DM		 4998 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4999 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5000 cur_params.dot11MeshRetryTimeout) ||
5001 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5002 cur_params.dot11MeshConfirmTimeout) ||
5003 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5004 cur_params.dot11MeshHoldingTimeout) ||
5005 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5006 cur_params.dot11MeshMaxPeerLinks) ||
5007 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5008 cur_params.dot11MeshMaxRetries) ||
5009 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5010 cur_params.dot11MeshTTL) ||
5011 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5012 cur_params.element_ttl) ||
5013 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5014 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5015 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5016 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5017 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5018 cur_params.dot11MeshHWMPmaxPREQretries) ||
5019 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5020 cur_params.path_refresh_time) ||
5021 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5022 cur_params.min_discovery_timeout) ||
5023 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5024 cur_params.dot11MeshHWMPactivePathTimeout) ||
5025 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5026 cur_params.dot11MeshHWMPpreqMinInterval) ||
5027 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5028 cur_params.dot11MeshHWMPperrMinInterval) ||
5029 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5030 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5031 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5032 cur_params.dot11MeshHWMPRootMode) ||
5033 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5034 cur_params.dot11MeshHWMPRannInterval) ||
5035 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5036 cur_params.dot11MeshGateAnnouncementProtocol) ||
5037 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5038 cur_params.dot11MeshForwarding) ||
5039 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5040 cur_params.rssi_threshold) ||
5041 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5042 cur_params.ht_opmode) ||
5043 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5044 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5045 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5046 cur_params.dot11MeshHWMProotInterval) ||
5047 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5048 cur_params.dot11MeshHWMPconfirmationInterval) ||
5049 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5050 cur_params.power_mode) ||
5051 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5052 cur_params.dot11MeshAwakeWindowDuration) ||
5053 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5054 cur_params.plink_timeout))
9360ffd1 5055 goto nla_put_failure;
93da9cc1 5056 nla_nest_end(msg, pinfoattr);
5057 genlmsg_end(msg, hdr);
4c476991 5058 return genlmsg_reply(msg, info);
93da9cc1 5059
3b85875a 5060 nla_put_failure:
93da9cc1 5061 genlmsg_cancel(msg, hdr);
efe1cf0c 5062 out:
d080e275 5063 nlmsg_free(msg);
4c476991 5064 return -ENOBUFS;
93da9cc1 5065}
5066
b54452b0 5067static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5068 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5069 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5070 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5071 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5072 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5073 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5074 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5075 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5076 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5077 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5078 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5079 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5080 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5081 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5082 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5083 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5084 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5085 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5086 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5087 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5088 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5089 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5090 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5091 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5092 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5093 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5094 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5095 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5096};
5097
c80d545d
JC		 5098static const struct nla_policy
5099 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5100 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5101 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5102 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5103 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5104 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5105 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5106 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5107 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5108 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5109};
5110
24bdd9f4 5111static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5112 struct mesh_config *cfg,
5113 u32 *mask_out)
93da9cc1 5114{
93da9cc1 5115 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5116 u32 mask = 0;
93da9cc1 5117
ea54fba2
MP		 5118#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5119do { \
5120 if (tb[attr]) { \
5121 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5122 return -EINVAL; \
5123 cfg->param = fn(tb[attr]); \
5124 mask |= (1 << (attr - 1)); \
5125 } \
5126} while (0)
bd90fdcc
JB		 5127
5128
24bdd9f4 5129 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5130 return -EINVAL;
5131 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5132 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5133 nl80211_meshconf_params_policy))
93da9cc1 5134 return -EINVAL;
5135
93da9cc1 5136 /* This makes sure that there aren't more than 32 mesh config
5137 * parameters (otherwise our bitfield scheme would not work.) */
5138 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5139
5140 /* Fill in the params struct */
ea54fba2 5141 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5142 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5143 nla_get_u16);
ea54fba2 5144 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5145 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5146 nla_get_u16);
ea54fba2 5147 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5148 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5149 nla_get_u16);
ea54fba2 5150 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5151 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5152 nla_get_u16);
ea54fba2 5153 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5154 mask, NL80211_MESHCONF_MAX_RETRIES,
5155 nla_get_u8);
ea54fba2 5156 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5157 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5158 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5159 mask, NL80211_MESHCONF_ELEMENT_TTL,
5160 nla_get_u8);
ea54fba2 5161 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5162 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5163 nla_get_u8);
ea54fba2
MP		 5164 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5165 1, 255, mask,
a4f606ea
CYY		 5166 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5167 nla_get_u32);
ea54fba2 5168 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5169 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5170 nla_get_u8);
ea54fba2 5171 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5172 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5173 nla_get_u32);
ea54fba2 5174 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5175 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5176 nla_get_u16);
ea54fba2
MP		 5177 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5178 1, 65535, mask,
a4f606ea
CYY		 5179 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5180 nla_get_u32);
93da9cc1 5181 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5182 1, 65535, mask,
5183 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5184 nla_get_u16);
dca7e943 5185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5186 1, 65535, mask,
5187 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5188 nla_get_u16);
93da9cc1 5189 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5190 dot11MeshHWMPnetDiameterTraversalTime,
5191 1, 65535, mask,
a4f606ea
CYY		 5192 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5193 nla_get_u16);
ea54fba2
MP		 5194 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5195 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5196 nla_get_u8);
5197 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5198 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5199 nla_get_u16);
63c5723b 5200 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5201 dot11MeshGateAnnouncementProtocol, 0, 1,
5202 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5203 nla_get_u8);
ea54fba2 5204 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5205 mask, NL80211_MESHCONF_FORWARDING,
5206 nla_get_u8);
83374fe9 5207 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5208 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5209 nla_get_s32);
ea54fba2 5210 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5211 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5212 nla_get_u16);
5213 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5214 1, 65535, mask,
ac1073a6
CYY		 5215 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5216 nla_get_u32);
ea54fba2 5217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5218 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5219 nla_get_u16);
5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5221 dot11MeshHWMPconfirmationInterval,
5222 1, 65535, mask,
728b19e5 5223 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5224 nla_get_u16);
3b1c5a53
MP		 5225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5226 NL80211_MESH_POWER_ACTIVE,
5227 NL80211_MESH_POWER_MAX,
5228 mask, NL80211_MESHCONF_POWER_MODE,
5229 nla_get_u32);
5230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5231 0, 65535, mask,
5232 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5234 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5235 nla_get_u32);
bd90fdcc
JB		 5236 if (mask_out)
5237 *mask_out = mask;
c80d545d 5238
bd90fdcc
JB		 5239 return 0;
5240
5241#undef FILL_IN_MESH_PARAM_IF_SET
5242}
5243
c80d545d
JC		 5244static int nl80211_parse_mesh_setup(struct genl_info *info,
5245 struct mesh_setup *setup)
5246{
bb2798d4 5247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5248 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5249
5250 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5251 return -EINVAL;
5252 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5253 info->attrs[NL80211_ATTR_MESH_SETUP],
5254 nl80211_mesh_setup_params_policy))
5255 return -EINVAL;
5256
d299a1f2
JC		 5257 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5258 setup->sync_method =
5259 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5260 IEEE80211_SYNC_METHOD_VENDOR :
5261 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5262
c80d545d
JC		 5263 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5264 setup->path_sel_proto =
5265 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5266 IEEE80211_PATH_PROTOCOL_VENDOR :
5267 IEEE80211_PATH_PROTOCOL_HWMP;
5268
5269 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5270 setup->path_metric =
5271 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5272 IEEE80211_PATH_METRIC_VENDOR :
5273 IEEE80211_PATH_METRIC_AIRTIME;
5274
581a8b0f
JC		 5275
5276 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5277 struct nlattr *ieattr =
581a8b0f 5278 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5279 if (!is_valid_ie_attr(ieattr))
5280 return -EINVAL;
581a8b0f
JC		 5281 setup->ie = nla_data(ieattr);
5282 setup->ie_len = nla_len(ieattr);
c80d545d 5283 }
bb2798d4
TP		 5284 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5285 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5286 return -EINVAL;
5287 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5288 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5289 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5290 if (setup->is_secure)
5291 setup->user_mpm = true;
c80d545d 5292
6e16d90b
CT		 5293 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5294 if (!setup->user_mpm)
5295 return -EINVAL;
5296 setup->auth_id =
5297 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5298 }
5299
c80d545d
JC		 5300 return 0;
5301}
5302
24bdd9f4 5303static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5304 struct genl_info *info)
bd90fdcc
JB		 5305{
5306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5307 struct net_device *dev = info->user_ptr[1];
29cbe68c 5308 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5309 struct mesh_config cfg;
5310 u32 mask;
5311 int err;
5312
29cbe68c
JB		 5313 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5314 return -EOPNOTSUPP;
5315
24bdd9f4 5316 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5317 return -EOPNOTSUPP;
5318
24bdd9f4 5319 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5320 if (err)
5321 return err;
5322
29cbe68c
JB		 5323 wdev_lock(wdev);
5324 if (!wdev->mesh_id_len)
5325 err = -ENOLINK;
5326
5327 if (!err)
e35e4d28 5328 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5329
5330 wdev_unlock(wdev);
5331
5332 return err;
93da9cc1 5333}
5334
ad30ca2c
AN		 5335static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5336 struct sk_buff *msg)
f130347c 5337{
f130347c
LR		 5338 struct nlattr *nl_reg_rules;
5339 unsigned int i;
f130347c 5340
458f4f9e
JB		 5341 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5342 (regdom->dfs_region &&
5343 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5344 goto nla_put_failure;
458f4f9e 5345
f130347c
LR		 5346 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5347 if (!nl_reg_rules)
ad30ca2c 5348 goto nla_put_failure;
f130347c 5349
458f4f9e 5350 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5351 struct nlattr *nl_reg_rule;
5352 const struct ieee80211_reg_rule *reg_rule;
5353 const struct ieee80211_freq_range *freq_range;
5354 const struct ieee80211_power_rule *power_rule;
97524820 5355 unsigned int max_bandwidth_khz;
f130347c 5356
458f4f9e 5357 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5358 freq_range = &reg_rule->freq_range;
5359 power_rule = &reg_rule->power_rule;
5360
5361 nl_reg_rule = nla_nest_start(msg, i);
5362 if (!nl_reg_rule)
ad30ca2c 5363 goto nla_put_failure;
f130347c 5364
97524820
JD		 5365 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5366 if (!max_bandwidth_khz)
5367 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5368 reg_rule);
5369
9360ffd1
DM		 5370 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5371 reg_rule->flags) ||
5372 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5373 freq_range->start_freq_khz) ||
5374 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5375 freq_range->end_freq_khz) ||
5376 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5377 max_bandwidth_khz) ||
9360ffd1
DM		 5378 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5379 power_rule->max_antenna_gain) ||
5380 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5381 power_rule->max_eirp) ||
5382 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5383 reg_rule->dfs_cac_ms))
ad30ca2c 5384 goto nla_put_failure;
f130347c
LR		 5385
5386 nla_nest_end(msg, nl_reg_rule);
5387 }
5388
5389 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5390 return 0;
5391
5392nla_put_failure:
5393 return -EMSGSIZE;
5394}
5395
5396static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5397{
5398 const struct ieee80211_regdomain *regdom = NULL;
5399 struct cfg80211_registered_device *rdev;
5400 struct wiphy *wiphy = NULL;
5401 struct sk_buff *msg;
5402 void *hdr;
5403
5404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5405 if (!msg)
5406 return -ENOBUFS;
5407
5408 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5409 NL80211_CMD_GET_REG);
5410 if (!hdr)
5411 goto put_failure;
5412
5413 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5414 bool self_managed;
5415
ad30ca2c
AN		 5416 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5417 if (IS_ERR(rdev)) {
5418 nlmsg_free(msg);
5419 return PTR_ERR(rdev);
5420 }
5421
5422 wiphy = &rdev->wiphy;
1bdd716c
AN		 5423 self_managed = wiphy->regulatory_flags &
5424 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5425 regdom = get_wiphy_regdom(wiphy);
5426
1bdd716c
AN		 5427 /* a self-managed-reg device must have a private regdom */
5428 if (WARN_ON(!regdom && self_managed)) {
5429 nlmsg_free(msg);
5430 return -EINVAL;
5431 }
5432
ad30ca2c
AN		 5433 if (regdom &&
5434 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5435 goto nla_put_failure;
5436 }
5437
5438 if (!wiphy && reg_last_request_cell_base() &&
5439 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5440 NL80211_USER_REG_HINT_CELL_BASE))
5441 goto nla_put_failure;
5442
5443 rcu_read_lock();
5444
5445 if (!regdom)
5446 regdom = rcu_dereference(cfg80211_regdomain);
5447
5448 if (nl80211_put_regdom(regdom, msg))
5449 goto nla_put_failure_rcu;
5450
5451 rcu_read_unlock();
f130347c
LR		 5452
5453 genlmsg_end(msg, hdr);
5fe231e8 5454 return genlmsg_reply(msg, info);
f130347c 5455
458f4f9e
JB		 5456nla_put_failure_rcu:
5457 rcu_read_unlock();
f130347c
LR		 5458nla_put_failure:
5459 genlmsg_cancel(msg, hdr);
efe1cf0c 5460put_failure:
d080e275 5461 nlmsg_free(msg);
5fe231e8 5462 return -EMSGSIZE;
f130347c
LR		 5463}
5464
ad30ca2c
AN		 5465static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5466 u32 seq, int flags, struct wiphy *wiphy,
5467 const struct ieee80211_regdomain *regdom)
5468{
5469 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5470 NL80211_CMD_GET_REG);
5471
5472 if (!hdr)
5473 return -1;
5474
5475 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5476
5477 if (nl80211_put_regdom(regdom, msg))
5478 goto nla_put_failure;
5479
5480 if (!wiphy && reg_last_request_cell_base() &&
5481 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5482 NL80211_USER_REG_HINT_CELL_BASE))
5483 goto nla_put_failure;
5484
5485 if (wiphy &&
5486 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5487 goto nla_put_failure;
5488
1bdd716c
AN		 5489 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5490 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5491 goto nla_put_failure;
5492
ad30ca2c
AN		 5493 return genlmsg_end(msg, hdr);
5494
5495nla_put_failure:
5496 genlmsg_cancel(msg, hdr);
5497 return -EMSGSIZE;
5498}
5499
5500static int nl80211_get_reg_dump(struct sk_buff *skb,
5501 struct netlink_callback *cb)
5502{
5503 const struct ieee80211_regdomain *regdom = NULL;
5504 struct cfg80211_registered_device *rdev;
5505 int err, reg_idx, start = cb->args[2];
5506
5507 rtnl_lock();
5508
5509 if (cfg80211_regdomain && start == 0) {
5510 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5511 NLM_F_MULTI, NULL,
5512 rtnl_dereference(cfg80211_regdomain));
5513 if (err < 0)
5514 goto out_err;
5515 }
5516
5517 /* the global regdom is idx 0 */
5518 reg_idx = 1;
5519 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5520 regdom = get_wiphy_regdom(&rdev->wiphy);
5521 if (!regdom)
5522 continue;
5523
5524 if (++reg_idx <= start)
5525 continue;
5526
5527 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5528 NLM_F_MULTI, &rdev->wiphy, regdom);
5529 if (err < 0) {
5530 reg_idx--;
5531 break;
5532 }
5533 }
5534
5535 cb->args[2] = reg_idx;
5536 err = skb->len;
5537out_err:
5538 rtnl_unlock();
5539 return err;
5540}
5541
b2e1b302
LR		 5542static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5543{
5544 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5545 struct nlattr *nl_reg_rule;
ea372c54
JB		 5546 char *alpha2;
5547 int rem_reg_rules, r;
b2e1b302 5548 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5549 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5550 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5551
5552 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5553 return -EINVAL;
5554
5555 if (!info->attrs[NL80211_ATTR_REG_RULES])
5556 return -EINVAL;
5557
5558 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5559
8b60b078
LR		 5560 if (info->attrs[NL80211_ATTR_DFS_REGION])
5561 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5562
b2e1b302 5563 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5564 rem_reg_rules) {
b2e1b302
LR		 5565 num_rules++;
5566 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5567 return -EINVAL;
b2e1b302
LR		 5568 }
5569
e438768f
LR		 5570 if (!reg_is_valid_request(alpha2))
5571 return -EINVAL;
5572
b2e1b302 5573 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5574 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5575
5576 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5577 if (!rd)
5578 return -ENOMEM;
b2e1b302
LR		 5579
5580 rd->n_reg_rules = num_rules;
5581 rd->alpha2[0] = alpha2[0];
5582 rd->alpha2[1] = alpha2[1];
5583
8b60b078
LR		 5584 /*
5585 * Disable DFS master mode if the DFS region was
5586 * not supported or known on this kernel.
5587 */
5588 if (reg_supported_dfs_region(dfs_region))
5589 rd->dfs_region = dfs_region;
5590
b2e1b302 5591 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5592 rem_reg_rules) {
ae811e21
JB		 5593 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5594 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5595 reg_rule_policy);
5596 if (r)
5597 goto bad_reg;
b2e1b302
LR		 5598 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5599 if (r)
5600 goto bad_reg;
5601
5602 rule_idx++;
5603
d0e18f83
LR		 5604 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5605 r = -EINVAL;
b2e1b302 5606 goto bad_reg;
d0e18f83 5607 }
b2e1b302
LR		 5608 }
5609
b2e1b302 5610 r = set_regdom(rd);
6913b49a 5611 /* set_regdom took ownership */
1a919318 5612 rd = NULL;
b2e1b302 5613
d2372b31 5614 bad_reg:
b2e1b302 5615 kfree(rd);
d0e18f83 5616 return r;
b2e1b302
LR		 5617}
5618
83f5e2cf
JB		 5619static int validate_scan_freqs(struct nlattr *freqs)
5620{
5621 struct nlattr *attr1, *attr2;
5622 int n_channels = 0, tmp1, tmp2;
5623
5624 nla_for_each_nested(attr1, freqs, tmp1) {
5625 n_channels++;
5626 /*
5627 * Some hardware has a limited channel list for
5628 * scanning, and it is pretty much nonsensical
5629 * to scan for a channel twice, so disallow that
5630 * and don't require drivers to check that the
5631 * channel list they get isn't longer than what
5632 * they can scan, as long as they can scan all
5633 * the channels they registered at once.
5634 */
5635 nla_for_each_nested(attr2, freqs, tmp2)
5636 if (attr1 != attr2 &&
5637 nla_get_u32(attr1) == nla_get_u32(attr2))
5638 return 0;
5639 }
5640
5641 return n_channels;
5642}
5643
ad2b26ab
JB		 5644static int nl80211_parse_random_mac(struct nlattr **attrs,
5645 u8 *mac_addr, u8 *mac_addr_mask)
5646{
5647 int i;
5648
5649 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5650 memset(mac_addr, 0, ETH_ALEN);
5651 memset(mac_addr_mask, 0, ETH_ALEN);
5652 mac_addr[0] = 0x2;
5653 mac_addr_mask[0] = 0x3;
5654
5655 return 0;
5656 }
5657
5658 /* need both or none */
5659 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5660 return -EINVAL;
5661
5662 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5663 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5664
5665 /* don't allow or configure an mcast address */
5666 if (!is_multicast_ether_addr(mac_addr_mask) ||
5667 is_multicast_ether_addr(mac_addr))
5668 return -EINVAL;
5669
5670 /*
5671 * allow users to pass a MAC address that has bits set outside
5672 * of the mask, but don't bother drivers with having to deal
5673 * with such bits
5674 */
5675 for (i = 0; i < ETH_ALEN; i++)
5676 mac_addr[i] &= mac_addr_mask[i];
5677
5678 return 0;
5679}
5680
2a519311
JB		 5681static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5682{
4c476991 5683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5684 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5685 struct cfg80211_scan_request *request;
2a519311
JB		 5686 struct nlattr *attr;
5687 struct wiphy *wiphy;
83f5e2cf 5688 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5689 size_t ie_len;
2a519311 5690
f4a11bb0
JB		 5691 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5692 return -EINVAL;
5693
79c97e97 5694 wiphy = &rdev->wiphy;
2a519311 5695
4c476991
JB		 5696 if (!rdev->ops->scan)
5697 return -EOPNOTSUPP;
2a519311 5698
f9d15d16 5699 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5700 err = -EBUSY;
5701 goto unlock;
5702 }
2a519311
JB		 5703
5704 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5705 n_channels = validate_scan_freqs(
5706 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5707 if (!n_channels) {
5708 err = -EINVAL;
5709 goto unlock;
5710 }
2a519311 5711 } else {
bdfbec2d 5712 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5713 }
5714
5715 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5716 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5717 n_ssids++;
5718
f9f47529
JB		 5719 if (n_ssids > wiphy->max_scan_ssids) {
5720 err = -EINVAL;
5721 goto unlock;
5722 }
2a519311 5723
70692ad2
JM		 5724 if (info->attrs[NL80211_ATTR_IE])
5725 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5726 else
5727 ie_len = 0;
5728
f9f47529
JB		 5729 if (ie_len > wiphy->max_scan_ie_len) {
5730 err = -EINVAL;
5731 goto unlock;
5732 }
18a83659 5733
2a519311 5734 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5735 + sizeof(*request->ssids) * n_ssids
5736 + sizeof(*request->channels) * n_channels
70692ad2 5737 + ie_len, GFP_KERNEL);
f9f47529
JB		 5738 if (!request) {
5739 err = -ENOMEM;
5740 goto unlock;
5741 }
2a519311 5742
2a519311 5743 if (n_ssids)
5ba63533 5744 request->ssids = (void *)&request->channels[n_channels];
2a519311 5745 request->n_ssids = n_ssids;
70692ad2
JM		 5746 if (ie_len) {
5747 if (request->ssids)
5748 request->ie = (void *)(request->ssids + n_ssids);
5749 else
5750 request->ie = (void *)(request->channels + n_channels);
5751 }
2a519311 5752
584991dc 5753 i = 0;
2a519311
JB		 5754 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5755 /* user specified, bail out if channel not found */
2a519311 5756 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5757 struct ieee80211_channel *chan;
5758
5759 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5760
5761 if (!chan) {
2a519311
JB		 5762 err = -EINVAL;
5763 goto out_free;
5764 }
584991dc
JB		 5765
5766 /* ignore disabled channels */
5767 if (chan->flags & IEEE80211_CHAN_DISABLED)
5768 continue;
5769
5770 request->channels[i] = chan;
2a519311
JB		 5771 i++;
5772 }
5773 } else {
34850ab2
JB		 5774 enum ieee80211_band band;
5775
2a519311 5776 /* all channels */
2a519311
JB		 5777 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5778 int j;
5779 if (!wiphy->bands[band])
5780 continue;
5781 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5782 struct ieee80211_channel *chan;
5783
5784 chan = &wiphy->bands[band]->channels[j];
5785
5786 if (chan->flags & IEEE80211_CHAN_DISABLED)
5787 continue;
5788
5789 request->channels[i] = chan;
2a519311
JB		 5790 i++;
5791 }
5792 }
5793 }
5794
584991dc
JB		 5795 if (!i) {
5796 err = -EINVAL;
5797 goto out_free;
5798 }
5799
5800 request->n_channels = i;
5801
2a519311
JB		 5802 i = 0;
5803 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5804 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5805 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5806 err = -EINVAL;
5807 goto out_free;
5808 }
57a27e1d 5809 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5810 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5811 i++;
5812 }
5813 }
5814
70692ad2
JM		 5815 if (info->attrs[NL80211_ATTR_IE]) {
5816 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5817 memcpy((void *)request->ie,
5818 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5819 request->ie_len);
5820 }
5821
34850ab2 5822 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5823 if (wiphy->bands[i])
5824 request->rates[i] =
5825 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5826
5827 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5828 nla_for_each_nested(attr,
5829 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5830 tmp) {
5831 enum ieee80211_band band = nla_type(attr);
5832
84404623 5833 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5834 err = -EINVAL;
5835 goto out_free;
5836 }
1b09cd82
FF		 5837
5838 if (!wiphy->bands[band])
5839 continue;
5840
34850ab2
JB		 5841 err = ieee80211_get_ratemask(wiphy->bands[band],
5842 nla_data(attr),
5843 nla_len(attr),
5844 &request->rates[band]);
5845 if (err)
5846 goto out_free;
5847 }
5848 }
5849
46856bbf 5850 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5851 request->flags = nla_get_u32(
5852 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5853 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5854 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5855 err = -EOPNOTSUPP;
5856 goto out_free;
5857 }
ad2b26ab
JB		 5858
5859 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5860 if (!(wiphy->features &
5861 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5862 err = -EOPNOTSUPP;
5863 goto out_free;
5864 }
5865
5866 if (wdev->current_bss) {
5867 err = -EOPNOTSUPP;
5868 goto out_free;
5869 }
5870
5871 err = nl80211_parse_random_mac(info->attrs,
5872 request->mac_addr,
5873 request->mac_addr_mask);
5874 if (err)
5875 goto out_free;
5876 }
46856bbf 5877 }
ed473771 5878
e9f935e3
RM		 5879 request->no_cck =
5880 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5881
fd014284 5882 request->wdev = wdev;
79c97e97 5883 request->wiphy = &rdev->wiphy;
15d6030b 5884 request->scan_start = jiffies;
2a519311 5885
79c97e97 5886 rdev->scan_req = request;
e35e4d28 5887 err = rdev_scan(rdev, request);
2a519311 5888
463d0183 5889 if (!err) {
fd014284
JB		 5890 nl80211_send_scan_start(rdev, wdev);
5891 if (wdev->netdev)
5892 dev_hold(wdev->netdev);
4c476991 5893 } else {
2a519311 5894 out_free:
79c97e97 5895 rdev->scan_req = NULL;
2a519311
JB		 5896 kfree(request);
5897 }
3b85875a 5898
f9f47529 5899 unlock:
2a519311
JB		 5900 return err;
5901}
5902
256da02d 5903static struct cfg80211_sched_scan_request *
ad2b26ab 5904nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5905 struct nlattr **attrs)
807f8a8c
LC		 5906{
5907 struct cfg80211_sched_scan_request *request;
807f8a8c 5908 struct nlattr *attr;
a1f1c21c 5909 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5910 u32 interval;
807f8a8c
LC		 5911 enum ieee80211_band band;
5912 size_t ie_len;
a1f1c21c 5913 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5914 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5915
256da02d
LC		 5916 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5917 return ERR_PTR(-EINVAL);
807f8a8c 5918
256da02d
LC		 5919 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5920 return ERR_PTR(-EINVAL);
bbe6ad6d 5921
256da02d 5922 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5923 if (interval == 0)
256da02d 5924 return ERR_PTR(-EINVAL);
807f8a8c 5925
256da02d 5926 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5927 n_channels = validate_scan_freqs(
256da02d 5928 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5929 if (!n_channels)
256da02d 5930 return ERR_PTR(-EINVAL);
807f8a8c 5931 } else {
bdfbec2d 5932 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5933 }
5934
256da02d
LC		 5935 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5936 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5937 tmp)
5938 n_ssids++;
5939
93b6aa69 5940 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5941 return ERR_PTR(-EINVAL);
807f8a8c 5942
ea73cbce
JB		 5943 /*
5944 * First, count the number of 'real' matchsets. Due to an issue with
5945 * the old implementation, matchsets containing only the RSSI attribute
5946 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5947 * RSSI for all matchsets, rather than their own matchset for reporting
5948 * all APs with a strong RSSI. This is needed to be compatible with
5949 * older userspace that treated a matchset with only the RSSI as the
5950 * global RSSI for all other matchsets - if there are other matchsets.
5951 */
256da02d 5952 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5953 nla_for_each_nested(attr,
256da02d 5954 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5955 tmp) {
5956 struct nlattr *rssi;
5957
5958 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5959 nla_data(attr), nla_len(attr),
5960 nl80211_match_policy);
5961 if (err)
256da02d 5962 return ERR_PTR(err);
ea73cbce
JB		 5963 /* add other standalone attributes here */
5964 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5965 n_match_sets++;
5966 continue;
5967 }
5968 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5969 if (rssi)
5970 default_match_rssi = nla_get_s32(rssi);
5971 }
5972 }
5973
5974 /* However, if there's no other matchset, add the RSSI one */
5975 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5976 n_match_sets = 1;
a1f1c21c
LC		 5977
5978 if (n_match_sets > wiphy->max_match_sets)
256da02d 5979 return ERR_PTR(-EINVAL);
a1f1c21c 5980
256da02d
LC		 5981 if (attrs[NL80211_ATTR_IE])
5982 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 5983 else
5984 ie_len = 0;
5985
5a865bad 5986 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 5987 return ERR_PTR(-EINVAL);
c10841ca 5988
807f8a8c 5989 request = kzalloc(sizeof(*request)
a2cd43c5 5990 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5991 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5992 + sizeof(*request->channels) * n_channels
807f8a8c 5993 + ie_len, GFP_KERNEL);
256da02d
LC		 5994 if (!request)
5995 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 5996
5997 if (n_ssids)
5998 request->ssids = (void *)&request->channels[n_channels];
5999 request->n_ssids = n_ssids;
6000 if (ie_len) {
6001 if (request->ssids)
6002 request->ie = (void *)(request->ssids + n_ssids);
6003 else
6004 request->ie = (void *)(request->channels + n_channels);
6005 }
6006
a1f1c21c
LC		 6007 if (n_match_sets) {
6008 if (request->ie)
6009 request->match_sets = (void *)(request->ie + ie_len);
6010 else if (request->ssids)
6011 request->match_sets =
6012 (void *)(request->ssids + n_ssids);
6013 else
6014 request->match_sets =
6015 (void *)(request->channels + n_channels);
6016 }
6017 request->n_match_sets = n_match_sets;
6018
807f8a8c 6019 i = 0;
256da02d 6020 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6021 /* user specified, bail out if channel not found */
6022 nla_for_each_nested(attr,
256da02d 6023 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6024 tmp) {
6025 struct ieee80211_channel *chan;
6026
6027 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6028
6029 if (!chan) {
6030 err = -EINVAL;
6031 goto out_free;
6032 }
6033
6034 /* ignore disabled channels */
6035 if (chan->flags & IEEE80211_CHAN_DISABLED)
6036 continue;
6037
6038 request->channels[i] = chan;
6039 i++;
6040 }
6041 } else {
6042 /* all channels */
6043 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6044 int j;
6045 if (!wiphy->bands[band])
6046 continue;
6047 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6048 struct ieee80211_channel *chan;
6049
6050 chan = &wiphy->bands[band]->channels[j];
6051
6052 if (chan->flags & IEEE80211_CHAN_DISABLED)
6053 continue;
6054
6055 request->channels[i] = chan;
6056 i++;
6057 }
6058 }
6059 }
6060
6061 if (!i) {
6062 err = -EINVAL;
6063 goto out_free;
6064 }
6065
6066 request->n_channels = i;
6067
6068 i = 0;
256da02d
LC		 6069 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
6070 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6071 tmp) {
57a27e1d 6072 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6073 err = -EINVAL;
6074 goto out_free;
6075 }
57a27e1d 6076 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6077 memcpy(request->ssids[i].ssid, nla_data(attr),
6078 nla_len(attr));
807f8a8c
LC		 6079 i++;
6080 }
6081 }
6082
a1f1c21c 6083 i = 0;
256da02d 6084 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6085 nla_for_each_nested(attr,
256da02d 6086 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6087 tmp) {
88e920b4 6088 struct nlattr *ssid, *rssi;
a1f1c21c 6089
ae811e21
JB		 6090 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6091 nla_data(attr), nla_len(attr),
6092 nl80211_match_policy);
6093 if (err)
6094 goto out_free;
4a4ab0d7 6095 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6096 if (ssid) {
ea73cbce
JB		 6097 if (WARN_ON(i >= n_match_sets)) {
6098 /* this indicates a programming error,
6099 * the loop above should have verified
6100 * things properly
6101 */
6102 err = -EINVAL;
6103 goto out_free;
6104 }
6105
a1f1c21c
LC		 6106 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6107 err = -EINVAL;
6108 goto out_free;
6109 }
6110 memcpy(request->match_sets[i].ssid.ssid,
6111 nla_data(ssid), nla_len(ssid));
6112 request->match_sets[i].ssid.ssid_len =
6113 nla_len(ssid);
ea73cbce
JB		 6114 /* special attribute - old implemenation w/a */
6115 request->match_sets[i].rssi_thold =
6116 default_match_rssi;
6117 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6118 if (rssi)
6119 request->match_sets[i].rssi_thold =
6120 nla_get_s32(rssi);
a1f1c21c
LC		 6121 }
6122 i++;
6123 }
ea73cbce
JB		 6124
6125 /* there was no other matchset, so the RSSI one is alone */
6126 if (i == 0)
6127 request->match_sets[0].rssi_thold = default_match_rssi;
6128
6129 request->min_rssi_thold = INT_MAX;
6130 for (i = 0; i < n_match_sets; i++)
6131 request->min_rssi_thold =
6132 min(request->match_sets[i].rssi_thold,
6133 request->min_rssi_thold);
6134 } else {
6135 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6136 }
6137
9900e484
JB		 6138 if (ie_len) {
6139 request->ie_len = ie_len;
807f8a8c 6140 memcpy((void *)request->ie,
256da02d 6141 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6142 request->ie_len);
6143 }
6144
256da02d 6145 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6146 request->flags = nla_get_u32(
256da02d 6147 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6148 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6149 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6150 err = -EOPNOTSUPP;
6151 goto out_free;
6152 }
ad2b26ab
JB		 6153
6154 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6155 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6156
6157 if (!wdev) /* must be net-detect */
6158 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6159
6160 if (!(wiphy->features & flg)) {
6161 err = -EOPNOTSUPP;
6162 goto out_free;
6163 }
6164
6165 if (wdev && wdev->current_bss) {
6166 err = -EOPNOTSUPP;
6167 goto out_free;
6168 }
6169
6170 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6171 request->mac_addr_mask);
6172 if (err)
6173 goto out_free;
6174 }
46856bbf 6175 }
ed473771 6176
bbe6ad6d 6177 request->interval = interval;
15d6030b 6178 request->scan_start = jiffies;
807f8a8c 6179
256da02d 6180 return request;
807f8a8c
LC		 6181
6182out_free:
6183 kfree(request);
256da02d
LC		 6184 return ERR_PTR(err);
6185}
6186
6187static int nl80211_start_sched_scan(struct sk_buff *skb,
6188 struct genl_info *info)
6189{
6190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6191 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6192 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6193 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6194 int err;
6195
6196 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6197 !rdev->ops->sched_scan_start)
6198 return -EOPNOTSUPP;
6199
6200 if (rdev->sched_scan_req)
6201 return -EINPROGRESS;
6202
31a60ed1
JR		 6203 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6204 info->attrs);
6205
6206 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6207 if (err)
6208 goto out_err;
6209
31a60ed1 6210 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6211 if (err)
6212 goto out_free;
6213
31a60ed1
JR		 6214 sched_scan_req->dev = dev;
6215 sched_scan_req->wiphy = &rdev->wiphy;
6216
93a1e86c
JR		 6217 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6218 sched_scan_req->owner_nlportid = info->snd_portid;
6219
31a60ed1 6220 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6221
6222 nl80211_send_sched_scan(rdev, dev,
6223 NL80211_CMD_START_SCHED_SCAN);
6224 return 0;
6225
6226out_free:
31a60ed1 6227 kfree(sched_scan_req);
256da02d 6228out_err:
807f8a8c
LC		 6229 return err;
6230}
6231
6232static int nl80211_stop_sched_scan(struct sk_buff *skb,
6233 struct genl_info *info)
6234{
6235 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6236
6237 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6238 !rdev->ops->sched_scan_stop)
6239 return -EOPNOTSUPP;
6240
5fe231e8 6241 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6242}
6243
04f39047
SW		 6244static int nl80211_start_radar_detection(struct sk_buff *skb,
6245 struct genl_info *info)
6246{
6247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6248 struct net_device *dev = info->user_ptr[1];
6249 struct wireless_dev *wdev = dev->ieee80211_ptr;
6250 struct cfg80211_chan_def chandef;
55f7435c 6251 enum nl80211_dfs_regions dfs_region;
31559f35 6252 unsigned int cac_time_ms;
04f39047
SW		 6253 int err;
6254
55f7435c
LR		 6255 dfs_region = reg_get_dfs_region(wdev->wiphy);
6256 if (dfs_region == NL80211_DFS_UNSET)
6257 return -EINVAL;
6258
04f39047
SW		 6259 err = nl80211_parse_chandef(rdev, info, &chandef);
6260 if (err)
6261 return err;
6262
ff311bc1
SW		 6263 if (netif_carrier_ok(dev))
6264 return -EBUSY;
6265
04f39047
SW		 6266 if (wdev->cac_started)
6267 return -EBUSY;
6268
2beb6dab 6269 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6270 wdev->iftype);
04f39047
SW		 6271 if (err < 0)
6272 return err;
6273
6274 if (err == 0)
6275 return -EINVAL;
6276
fe7c3a1f 6277 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6278 return -EINVAL;
6279
6280 if (!rdev->ops->start_radar_detection)
6281 return -EOPNOTSUPP;
6282
31559f35
JD		 6283 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6284 if (WARN_ON(!cac_time_ms))
6285 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6286
6287 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6288 cac_time_ms);
04f39047 6289 if (!err) {
9e0e2961 6290 wdev->chandef = chandef;
04f39047
SW		 6291 wdev->cac_started = true;
6292 wdev->cac_start_time = jiffies;
31559f35 6293 wdev->cac_time_ms = cac_time_ms;
04f39047 6294 }
04f39047
SW		 6295 return err;
6296}
6297
16ef1fe2
SW		 6298static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6299{
6300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6301 struct net_device *dev = info->user_ptr[1];
6302 struct wireless_dev *wdev = dev->ieee80211_ptr;
6303 struct cfg80211_csa_settings params;
6304 /* csa_attrs is defined static to avoid waste of stack size - this
6305 * function is called under RTNL lock, so this should not be a problem.
6306 */
6307 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6308 int err;
ee4bc9e7 6309 bool need_new_beacon = false;
9a774c78 6310 int len, i;
252e07ca 6311 u32 cs_count;
16ef1fe2
SW		 6312
6313 if (!rdev->ops->channel_switch ||
6314 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6315 return -EOPNOTSUPP;
6316
ee4bc9e7
SW		 6317 switch (dev->ieee80211_ptr->iftype) {
6318 case NL80211_IFTYPE_AP:
6319 case NL80211_IFTYPE_P2P_GO:
6320 need_new_beacon = true;
6321
6322 /* useless if AP is not running */
6323 if (!wdev->beacon_interval)
1ff79dfa 6324 return -ENOTCONN;
ee4bc9e7
SW		 6325 break;
6326 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6327 if (!wdev->ssid_len)
6328 return -ENOTCONN;
6329 break;
c6da674a 6330 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6331 if (!wdev->mesh_id_len)
6332 return -ENOTCONN;
ee4bc9e7
SW		 6333 break;
6334 default:
16ef1fe2 6335 return -EOPNOTSUPP;
ee4bc9e7 6336 }
16ef1fe2
SW		 6337
6338 memset(&params, 0, sizeof(params));
6339
6340 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6341 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6342 return -EINVAL;
6343
6344 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6345 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6346 return -EINVAL;
6347
252e07ca
LC		 6348 /* Even though the attribute is u32, the specification says
6349 * u8, so let's make sure we don't overflow.
6350 */
6351 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6352 if (cs_count > 255)
6353 return -EINVAL;
6354
6355 params.count = cs_count;
16ef1fe2 6356
ee4bc9e7
SW		 6357 if (!need_new_beacon)
6358 goto skip_beacons;
6359
16ef1fe2
SW		 6360 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6361 if (err)
6362 return err;
6363
6364 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6365 info->attrs[NL80211_ATTR_CSA_IES],
6366 nl80211_policy);
6367 if (err)
6368 return err;
6369
6370 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6371 if (err)
6372 return err;
6373
6374 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6375 return -EINVAL;
6376
9a774c78
AO		 6377 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6378 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6379 return -EINVAL;
6380
9a774c78
AO		 6381 params.n_counter_offsets_beacon = 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
SW		 6385 return -EINVAL;
6386
9a774c78
AO		 6387 params.counter_offsets_beacon =
6388 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6389
6390 /* sanity checks - counters should fit and be the same */
6391 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6392 u16 offset = params.counter_offsets_beacon[i];
6393
6394 if (offset >= params.beacon_csa.tail_len)
6395 return -EINVAL;
6396
6397 if (params.beacon_csa.tail[offset] != params.count)
6398 return -EINVAL;
6399 }
6400
16ef1fe2 6401 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6402 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6403 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6404 return -EINVAL;
6405
9a774c78
AO		 6406 params.n_counter_offsets_presp = len / sizeof(u16);
6407 if (rdev->wiphy.max_num_csa_counters &&
6408 (params.n_counter_offsets_beacon >
6409 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6410 return -EINVAL;
9a774c78
AO		 6411
6412 params.counter_offsets_presp =
6413 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6414
6415 /* sanity checks - counters should fit and be the same */
6416 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6417 u16 offset = params.counter_offsets_presp[i];
6418
6419 if (offset >= params.beacon_csa.probe_resp_len)
6420 return -EINVAL;
6421
6422 if (params.beacon_csa.probe_resp[offset] !=
6423 params.count)
6424 return -EINVAL;
6425 }
16ef1fe2
SW		 6426 }
6427
ee4bc9e7 6428skip_beacons:
16ef1fe2
SW		 6429 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6430 if (err)
6431 return err;
6432
174e0cd2
IP		 6433 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6434 wdev->iftype))
16ef1fe2
SW		 6435 return -EINVAL;
6436
2beb6dab
LC		 6437 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6438 &params.chandef,
6439 wdev->iftype);
6440 if (err < 0)
6441 return err;
6442
dcc6c2f5 6443 if (err > 0)
2beb6dab 6444 params.radar_required = true;
16ef1fe2 6445
16ef1fe2
SW		 6446 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6447 params.block_tx = true;
6448
c56589ed
SW		 6449 wdev_lock(wdev);
6450 err = rdev_channel_switch(rdev, dev, &params);
6451 wdev_unlock(wdev);
6452
6453 return err;
16ef1fe2
SW		 6454}
6455
9720bb3a
JB		 6456static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6457 u32 seq, int flags,
2a519311 6458 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6459 struct wireless_dev *wdev,
6460 struct cfg80211_internal_bss *intbss)
2a519311 6461{
48ab905d 6462 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6463 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6464 void *hdr;
6465 struct nlattr *bss;
48ab905d
JB		 6466
6467 ASSERT_WDEV_LOCK(wdev);
2a519311 6468
15e47304 6469 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6470 NL80211_CMD_NEW_SCAN_RESULTS);
6471 if (!hdr)
6472 return -1;
6473
9720bb3a
JB		 6474 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6475
97990a06
JB		 6476 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6477 goto nla_put_failure;
6478 if (wdev->netdev &&
9360ffd1
DM		 6479 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6480 goto nla_put_failure;
97990a06
JB		 6481 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6482 goto nla_put_failure;
2a519311
JB		 6483
6484 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6485 if (!bss)
6486 goto nla_put_failure;
9360ffd1 6487 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6488 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6489 goto nla_put_failure;
9caf0364
JB		 6490
6491 rcu_read_lock();
0e227084
JB		 6492 /* indicate whether we have probe response data or not */
6493 if (rcu_access_pointer(res->proberesp_ies) &&
6494 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6495 goto fail_unlock_rcu;
6496
6497 /* this pointer prefers to be pointed to probe response data
6498 * but is always valid
6499 */
9caf0364 6500 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6501 if (ies) {
6502 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6503 goto fail_unlock_rcu;
8cef2c9d
JB		 6504 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6505 ies->len, ies->data))
6506 goto fail_unlock_rcu;
9caf0364 6507 }
0e227084
JB		 6508
6509 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6510 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6511 if (ies && ies->from_beacon) {
6512 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6513 goto fail_unlock_rcu;
6514 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6515 ies->len, ies->data))
6516 goto fail_unlock_rcu;
9caf0364
JB		 6517 }
6518 rcu_read_unlock();
6519
9360ffd1
DM		 6520 if (res->beacon_interval &&
6521 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6522 goto nla_put_failure;
6523 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6524 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6525 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6526 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6527 jiffies_to_msecs(jiffies - intbss->ts)))
6528 goto nla_put_failure;
2a519311 6529
77965c97 6530 switch (rdev->wiphy.signal_type) {
2a519311 6531 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6532 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6533 goto nla_put_failure;
2a519311
JB		 6534 break;
6535 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6536 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6537 goto nla_put_failure;
2a519311
JB		 6538 break;
6539 default:
6540 break;
6541 }
6542
48ab905d 6543 switch (wdev->iftype) {
074ac8df 6544 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6545 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6546 if (intbss == wdev->current_bss &&
6547 nla_put_u32(msg, NL80211_BSS_STATUS,
6548 NL80211_BSS_STATUS_ASSOCIATED))
6549 goto nla_put_failure;
48ab905d
JB		 6550 break;
6551 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6552 if (intbss == wdev->current_bss &&
6553 nla_put_u32(msg, NL80211_BSS_STATUS,
6554 NL80211_BSS_STATUS_IBSS_JOINED))
6555 goto nla_put_failure;
48ab905d
JB		 6556 break;
6557 default:
6558 break;
6559 }
6560
2a519311
JB		 6561 nla_nest_end(msg, bss);
6562
6563 return genlmsg_end(msg, hdr);
6564
8cef2c9d
JB		 6565 fail_unlock_rcu:
6566 rcu_read_unlock();
2a519311
JB		 6567 nla_put_failure:
6568 genlmsg_cancel(msg, hdr);
6569 return -EMSGSIZE;
6570}
6571
97990a06 6572static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6573{
48ab905d 6574 struct cfg80211_registered_device *rdev;
2a519311 6575 struct cfg80211_internal_bss *scan;
48ab905d 6576 struct wireless_dev *wdev;
97990a06 6577 int start = cb->args[2], idx = 0;
2a519311
JB		 6578 int err;
6579
97990a06 6580 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6581 if (err)
6582 return err;
2a519311 6583
48ab905d
JB		 6584 wdev_lock(wdev);
6585 spin_lock_bh(&rdev->bss_lock);
6586 cfg80211_bss_expire(rdev);
6587
9720bb3a
JB		 6588 cb->seq = rdev->bss_generation;
6589
48ab905d 6590 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6591 if (++idx <= start)
6592 continue;
9720bb3a 6593 if (nl80211_send_bss(skb, cb,
2a519311 6594 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6595 rdev, wdev, scan) < 0) {
2a519311 6596 idx--;
67748893 6597 break;
2a519311
JB		 6598 }
6599 }
6600
48ab905d
JB		 6601 spin_unlock_bh(&rdev->bss_lock);
6602 wdev_unlock(wdev);
2a519311 6603
97990a06
JB		 6604 cb->args[2] = idx;
6605 nl80211_finish_wdev_dump(rdev);
2a519311 6606
67748893 6607 return skb->len;
2a519311
JB		 6608}
6609
15e47304 6610static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6611 int flags, struct net_device *dev,
6612 struct survey_info *survey)
6613{
6614 void *hdr;
6615 struct nlattr *infoattr;
6616
15e47304 6617 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6618 NL80211_CMD_NEW_SURVEY_RESULTS);
6619 if (!hdr)
6620 return -ENOMEM;
6621
9360ffd1
DM		 6622 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6623 goto nla_put_failure;
61fa713c
HS		 6624
6625 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6626 if (!infoattr)
6627 goto nla_put_failure;
6628
9360ffd1
DM		 6629 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6630 survey->channel->center_freq))
6631 goto nla_put_failure;
6632
6633 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6634 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6635 goto nla_put_failure;
6636 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6637 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6638 goto nla_put_failure;
6639 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6640 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6641 survey->channel_time))
6642 goto nla_put_failure;
6643 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6644 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6645 survey->channel_time_busy))
6646 goto nla_put_failure;
6647 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6648 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6649 survey->channel_time_ext_busy))
6650 goto nla_put_failure;
6651 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6652 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6653 survey->channel_time_rx))
6654 goto nla_put_failure;
6655 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6656 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6657 survey->channel_time_tx))
6658 goto nla_put_failure;
61fa713c
HS		 6659
6660 nla_nest_end(msg, infoattr);
6661
6662 return genlmsg_end(msg, hdr);
6663
6664 nla_put_failure:
6665 genlmsg_cancel(msg, hdr);
6666 return -EMSGSIZE;
6667}
6668
6669static int nl80211_dump_survey(struct sk_buff *skb,
6670 struct netlink_callback *cb)
6671{
6672 struct survey_info survey;
1b8ec87a 6673 struct cfg80211_registered_device *rdev;
97990a06
JB		 6674 struct wireless_dev *wdev;
6675 int survey_idx = cb->args[2];
61fa713c
HS		 6676 int res;
6677
1b8ec87a 6678 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6679 if (res)
6680 return res;
61fa713c 6681
97990a06
JB		 6682 if (!wdev->netdev) {
6683 res = -EINVAL;
6684 goto out_err;
6685 }
6686
1b8ec87a 6687 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6688 res = -EOPNOTSUPP;
6689 goto out_err;
6690 }
6691
6692 while (1) {
1b8ec87a 6693 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6694 if (res == -ENOENT)
6695 break;
6696 if (res)
6697 goto out_err;
6698
180cdc79
LR		 6699 /* Survey without a channel doesn't make sense */
6700 if (!survey.channel) {
6701 res = -EINVAL;
6702 goto out;
6703 }
6704
ea9eba6a 6705 if (survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6706 survey_idx++;
6707 continue;
6708 }
6709
61fa713c 6710 if (nl80211_send_survey(skb,
15e47304 6711 NETLINK_CB(cb->skb).portid,
61fa713c 6712 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6713 wdev->netdev, &survey) < 0)
61fa713c
HS		 6714 goto out;
6715 survey_idx++;
6716 }
6717
6718 out:
97990a06 6719 cb->args[2] = survey_idx;
61fa713c
HS		 6720 res = skb->len;
6721 out_err:
1b8ec87a 6722 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6723 return res;
6724}
6725
b23aa676
SO		 6726static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6727{
6728 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6729 NL80211_WPA_VERSION_2));
6730}
6731
636a5d36
JM		 6732static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6733{
4c476991
JB		 6734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6735 struct net_device *dev = info->user_ptr[1];
19957bb3 6736 struct ieee80211_channel *chan;
e39e5b5e
JM		 6737 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6738 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6739 enum nl80211_auth_type auth_type;
fffd0934 6740 struct key_parse key;
d5cdfacb 6741 bool local_state_change;
636a5d36 6742
f4a11bb0
JB		 6743 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6744 return -EINVAL;
6745
6746 if (!info->attrs[NL80211_ATTR_MAC])
6747 return -EINVAL;
6748
1778092e
JM		 6749 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6750 return -EINVAL;
6751
19957bb3
JB		 6752 if (!info->attrs[NL80211_ATTR_SSID])
6753 return -EINVAL;
6754
6755 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6756 return -EINVAL;
6757
fffd0934
JB		 6758 err = nl80211_parse_key(info, &key);
6759 if (err)
6760 return err;
6761
6762 if (key.idx >= 0) {
e31b8213
JB		 6763 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6764 return -EINVAL;
fffd0934
JB		 6765 if (!key.p.key || !key.p.key_len)
6766 return -EINVAL;
6767 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6768 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6769 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6770 key.p.key_len != WLAN_KEY_LEN_WEP104))
6771 return -EINVAL;
6772 if (key.idx > 4)
6773 return -EINVAL;
6774 } else {
6775 key.p.key_len = 0;
6776 key.p.key = NULL;
6777 }
6778
afea0b7a
JB		 6779 if (key.idx >= 0) {
6780 int i;
6781 bool ok = false;
6782 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6783 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6784 ok = true;
6785 break;
6786 }
6787 }
4c476991
JB		 6788 if (!ok)
6789 return -EINVAL;
afea0b7a
JB		 6790 }
6791
4c476991
JB		 6792 if (!rdev->ops->auth)
6793 return -EOPNOTSUPP;
636a5d36 6794
074ac8df 6795 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6796 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6797 return -EOPNOTSUPP;
eec60b03 6798
19957bb3 6799 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6800 chan = nl80211_get_valid_chan(&rdev->wiphy,
6801 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6802 if (!chan)
4c476991 6803 return -EINVAL;
636a5d36 6804
19957bb3
JB		 6805 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6806 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6807
6808 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6809 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6810 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6811 }
6812
19957bb3 6813 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6814 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6815 return -EINVAL;
636a5d36 6816
e39e5b5e
JM		 6817 if (auth_type == NL80211_AUTHTYPE_SAE &&
6818 !info->attrs[NL80211_ATTR_SAE_DATA])
6819 return -EINVAL;
6820
6821 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6822 if (auth_type != NL80211_AUTHTYPE_SAE)
6823 return -EINVAL;
6824 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6825 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6826 /* need to include at least Auth Transaction and Status Code */
6827 if (sae_data_len < 4)
6828 return -EINVAL;
6829 }
6830
d5cdfacb
JM		 6831 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6832
95de817b
JB		 6833 /*
6834 * Since we no longer track auth state, ignore
6835 * requests to only change local state.
6836 */
6837 if (local_state_change)
6838 return 0;
6839
91bf9b26
JB		 6840 wdev_lock(dev->ieee80211_ptr);
6841 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6842 ssid, ssid_len, ie, ie_len,
6843 key.p.key, key.p.key_len, key.idx,
6844 sae_data, sae_data_len);
6845 wdev_unlock(dev->ieee80211_ptr);
6846 return err;
636a5d36
JM		 6847}
6848
c0692b8f
JB		 6849static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6850 struct genl_info *info,
3dc27d25
JB		 6851 struct cfg80211_crypto_settings *settings,
6852 int cipher_limit)
b23aa676 6853{
c0b2bbd8
JB		 6854 memset(settings, 0, sizeof(*settings));
6855
b23aa676
SO		 6856 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6857
c0692b8f
JB		 6858 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6859 u16 proto;
6860 proto = nla_get_u16(
6861 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6862 settings->control_port_ethertype = cpu_to_be16(proto);
6863 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6864 proto != ETH_P_PAE)
6865 return -EINVAL;
6866 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6867 settings->control_port_no_encrypt = true;
6868 } else
6869 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6870
b23aa676
SO		 6871 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6872 void *data;
6873 int len, i;
6874
6875 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6876 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6877 settings->n_ciphers_pairwise = len / sizeof(u32);
6878
6879 if (len % sizeof(u32))
6880 return -EINVAL;
6881
3dc27d25 6882 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6883 return -EINVAL;
6884
6885 memcpy(settings->ciphers_pairwise, data, len);
6886
6887 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6888 if (!cfg80211_supported_cipher_suite(
6889 &rdev->wiphy,
b23aa676
SO		 6890 settings->ciphers_pairwise[i]))
6891 return -EINVAL;
6892 }
6893
6894 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6895 settings->cipher_group =
6896 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6897 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6898 settings->cipher_group))
b23aa676
SO		 6899 return -EINVAL;
6900 }
6901
6902 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6903 settings->wpa_versions =
6904 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6905 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6906 return -EINVAL;
6907 }
6908
6909 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6910 void *data;
6d30240e 6911 int len;
b23aa676
SO		 6912
6913 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6914 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6915 settings->n_akm_suites = len / sizeof(u32);
6916
6917 if (len % sizeof(u32))
6918 return -EINVAL;
6919
1b9ca027
JM		 6920 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6921 return -EINVAL;
6922
b23aa676 6923 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6924 }
6925
6926 return 0;
6927}
6928
636a5d36
JM		 6929static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6930{
4c476991
JB		 6931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6932 struct net_device *dev = info->user_ptr[1];
f444de05 6933 struct ieee80211_channel *chan;
f62fab73
JB		 6934 struct cfg80211_assoc_request req = {};
6935 const u8 *bssid, *ssid;
6936 int err, ssid_len = 0;
636a5d36 6937
f4a11bb0
JB		 6938 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6939 return -EINVAL;
6940
6941 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6942 !info->attrs[NL80211_ATTR_SSID] ||
6943 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6944 return -EINVAL;
6945
4c476991
JB		 6946 if (!rdev->ops->assoc)
6947 return -EOPNOTSUPP;
636a5d36 6948
074ac8df 6949 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6950 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6951 return -EOPNOTSUPP;
eec60b03 6952
19957bb3 6953 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6954
664834de
JM		 6955 chan = nl80211_get_valid_chan(&rdev->wiphy,
6956 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6957 if (!chan)
4c476991 6958 return -EINVAL;
636a5d36 6959
19957bb3
JB		 6960 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6961 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6962
6963 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6964 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6965 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6966 }
6967
dc6382ce 6968 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6969 enum nl80211_mfp mfp =
dc6382ce 6970 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6971 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6972 req.use_mfp = true;
4c476991
JB		 6973 else if (mfp != NL80211_MFP_NO)
6974 return -EINVAL;
dc6382ce
JM		 6975 }
6976
3e5d7649 6977 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6978 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6979
7e7c8926 6980 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6981 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6982
6983 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6984 memcpy(&req.ht_capa_mask,
6985 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6986 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6987
6988 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6989 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6990 return -EINVAL;
f62fab73
JB		 6991 memcpy(&req.ht_capa,
6992 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6993 sizeof(req.ht_capa));
7e7c8926
BG		 6994 }
6995
ee2aca34 6996 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6997 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6998
6999 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7000 memcpy(&req.vht_capa_mask,
7001 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7002 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7003
7004 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7005 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7006 return -EINVAL;
f62fab73
JB		 7007 memcpy(&req.vht_capa,
7008 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7009 sizeof(req.vht_capa));
ee2aca34
JB		 7010 }
7011
bab5ab7d
AK		 7012 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7013 if (!(rdev->wiphy.features &
7014 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7015 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7016 return -EINVAL;
7017 req.flags |= ASSOC_REQ_USE_RRM;
7018 }
7019
f62fab73 7020 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7021 if (!err) {
7022 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7023 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7024 ssid, ssid_len, &req);
91bf9b26
JB		 7025 wdev_unlock(dev->ieee80211_ptr);
7026 }
636a5d36 7027
636a5d36
JM		 7028 return err;
7029}
7030
7031static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7032{
4c476991
JB		 7033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7034 struct net_device *dev = info->user_ptr[1];
19957bb3 7035 const u8 *ie = NULL, *bssid;
91bf9b26 7036 int ie_len = 0, err;
19957bb3 7037 u16 reason_code;
d5cdfacb 7038 bool local_state_change;
636a5d36 7039
f4a11bb0
JB		 7040 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7041 return -EINVAL;
7042
7043 if (!info->attrs[NL80211_ATTR_MAC])
7044 return -EINVAL;
7045
7046 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7047 return -EINVAL;
7048
4c476991
JB		 7049 if (!rdev->ops->deauth)
7050 return -EOPNOTSUPP;
636a5d36 7051
074ac8df 7052 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7053 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7054 return -EOPNOTSUPP;
eec60b03 7055
19957bb3 7056 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7057
19957bb3
JB		 7058 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7059 if (reason_code == 0) {
f4a11bb0 7060 /* Reason Code 0 is reserved */
4c476991 7061 return -EINVAL;
255e737e 7062 }
636a5d36
JM		 7063
7064 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7065 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7066 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7067 }
7068
d5cdfacb
JM		 7069 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7070
91bf9b26
JB		 7071 wdev_lock(dev->ieee80211_ptr);
7072 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7073 local_state_change);
7074 wdev_unlock(dev->ieee80211_ptr);
7075 return err;
636a5d36
JM		 7076}
7077
7078static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7079{
4c476991
JB		 7080 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7081 struct net_device *dev = info->user_ptr[1];
19957bb3 7082 const u8 *ie = NULL, *bssid;
91bf9b26 7083 int ie_len = 0, err;
19957bb3 7084 u16 reason_code;
d5cdfacb 7085 bool local_state_change;
636a5d36 7086
f4a11bb0
JB		 7087 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7088 return -EINVAL;
7089
7090 if (!info->attrs[NL80211_ATTR_MAC])
7091 return -EINVAL;
7092
7093 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7094 return -EINVAL;
7095
4c476991
JB		 7096 if (!rdev->ops->disassoc)
7097 return -EOPNOTSUPP;
636a5d36 7098
074ac8df 7099 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7100 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7101 return -EOPNOTSUPP;
eec60b03 7102
19957bb3 7103 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7104
19957bb3
JB		 7105 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7106 if (reason_code == 0) {
f4a11bb0 7107 /* Reason Code 0 is reserved */
4c476991 7108 return -EINVAL;
255e737e 7109 }
636a5d36
JM		 7110
7111 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7112 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7113 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7114 }
7115
d5cdfacb
JM		 7116 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7117
91bf9b26
JB		 7118 wdev_lock(dev->ieee80211_ptr);
7119 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7120 local_state_change);
7121 wdev_unlock(dev->ieee80211_ptr);
7122 return err;
636a5d36
JM		 7123}
7124
dd5b4cc7
FF		 7125static bool
7126nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7127 int mcast_rate[IEEE80211_NUM_BANDS],
7128 int rateval)
7129{
7130 struct wiphy *wiphy = &rdev->wiphy;
7131 bool found = false;
7132 int band, i;
7133
7134 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7135 struct ieee80211_supported_band *sband;
7136
7137 sband = wiphy->bands[band];
7138 if (!sband)
7139 continue;
7140
7141 for (i = 0; i < sband->n_bitrates; i++) {
7142 if (sband->bitrates[i].bitrate == rateval) {
7143 mcast_rate[band] = i + 1;
7144 found = true;
7145 break;
7146 }
7147 }
7148 }
7149
7150 return found;
7151}
7152
04a773ad
JB		 7153static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7154{
4c476991
JB		 7155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7156 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7157 struct cfg80211_ibss_params ibss;
7158 struct wiphy *wiphy;
fffd0934 7159 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7160 int err;
7161
8e30bc55
JB		 7162 memset(&ibss, 0, sizeof(ibss));
7163
04a773ad
JB		 7164 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7165 return -EINVAL;
7166
683b6d3b 7167 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7168 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7169 return -EINVAL;
7170
8e30bc55
JB		 7171 ibss.beacon_interval = 100;
7172
7173 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7174 ibss.beacon_interval =
7175 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7176 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7177 return -EINVAL;
7178 }
7179
4c476991
JB		 7180 if (!rdev->ops->join_ibss)
7181 return -EOPNOTSUPP;
04a773ad 7182
4c476991
JB		 7183 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7184 return -EOPNOTSUPP;
04a773ad 7185
79c97e97 7186 wiphy = &rdev->wiphy;
04a773ad 7187
39193498 7188 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7189 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7190
7191 if (!is_valid_ether_addr(ibss.bssid))
7192 return -EINVAL;
7193 }
04a773ad
JB		 7194 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7195 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7196
7197 if (info->attrs[NL80211_ATTR_IE]) {
7198 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7199 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7200 }
7201
683b6d3b
JB		 7202 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7203 if (err)
7204 return err;
04a773ad 7205
174e0cd2
IP		 7206 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7207 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7208 return -EINVAL;
7209
2f301ab2 7210 switch (ibss.chandef.width) {
bf372645
SW		 7211 case NL80211_CHAN_WIDTH_5:
7212 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7213 case NL80211_CHAN_WIDTH_20_NOHT:
7214 break;
7215 case NL80211_CHAN_WIDTH_20:
7216 case NL80211_CHAN_WIDTH_40:
7217 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7218 break;
7219 default:
c04d6150 7220 return -EINVAL;
2f301ab2 7221 }
db9c64cf 7222
04a773ad 7223 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7224 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7225
fbd2c8dc
TP		 7226 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7227 u8 *rates =
7228 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7229 int n_rates =
7230 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7231 struct ieee80211_supported_band *sband =
683b6d3b 7232 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7233
34850ab2
JB		 7234 err = ieee80211_get_ratemask(sband, rates, n_rates,
7235 &ibss.basic_rates);
7236 if (err)
7237 return err;
fbd2c8dc 7238 }
dd5b4cc7 7239
803768f5
SW		 7240 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7241 memcpy(&ibss.ht_capa_mask,
7242 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7243 sizeof(ibss.ht_capa_mask));
7244
7245 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7246 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7247 return -EINVAL;
7248 memcpy(&ibss.ht_capa,
7249 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7250 sizeof(ibss.ht_capa));
7251 }
7252
dd5b4cc7
FF		 7253 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7254 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7255 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7256 return -EINVAL;
fbd2c8dc 7257
4c476991 7258 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7259 bool no_ht = false;
7260
4c476991 7261 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7262 info->attrs[NL80211_ATTR_KEYS],
7263 &no_ht);
4c476991
JB		 7264 if (IS_ERR(connkeys))
7265 return PTR_ERR(connkeys);
de7044ee 7266
3d9d1d66
JB		 7267 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7268 no_ht) {
de7044ee
SM		 7269 kfree(connkeys);
7270 return -EINVAL;
7271 }
4c476991 7272 }
04a773ad 7273
267335d6
AQ		 7274 ibss.control_port =
7275 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7276
5336fa88
SW		 7277 ibss.userspace_handles_dfs =
7278 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7279
4c476991 7280 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7281 if (err)
b47f610b 7282 kzfree(connkeys);
04a773ad
JB		 7283 return err;
7284}
7285
7286static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7287{
4c476991
JB		 7288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7289 struct net_device *dev = info->user_ptr[1];
04a773ad 7290
4c476991
JB		 7291 if (!rdev->ops->leave_ibss)
7292 return -EOPNOTSUPP;
04a773ad 7293
4c476991
JB		 7294 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7295 return -EOPNOTSUPP;
04a773ad 7296
4c476991 7297 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7298}
7299
f4e583c8
AQ		 7300static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7301{
7302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7303 struct net_device *dev = info->user_ptr[1];
7304 int mcast_rate[IEEE80211_NUM_BANDS];
7305 u32 nla_rate;
7306 int err;
7307
7308 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7309 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7310 return -EOPNOTSUPP;
7311
7312 if (!rdev->ops->set_mcast_rate)
7313 return -EOPNOTSUPP;
7314
7315 memset(mcast_rate, 0, sizeof(mcast_rate));
7316
7317 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7318 return -EINVAL;
7319
7320 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7321 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7322 return -EINVAL;
7323
7324 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7325
7326 return err;
7327}
7328
ad7e718c
JB		 7329static struct sk_buff *
7330__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7331 int approxlen, u32 portid, u32 seq,
7332 enum nl80211_commands cmd,
567ffc35
JB		 7333 enum nl80211_attrs attr,
7334 const struct nl80211_vendor_cmd_info *info,
7335 gfp_t gfp)
ad7e718c
JB		 7336{
7337 struct sk_buff *skb;
7338 void *hdr;
7339 struct nlattr *data;
7340
7341 skb = nlmsg_new(approxlen + 100, gfp);
7342 if (!skb)
7343 return NULL;
7344
7345 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7346 if (!hdr) {
7347 kfree_skb(skb);
7348 return NULL;
7349 }
7350
7351 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7352 goto nla_put_failure;
567ffc35
JB		 7353
7354 if (info) {
7355 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7356 info->vendor_id))
7357 goto nla_put_failure;
7358 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7359 info->subcmd))
7360 goto nla_put_failure;
7361 }
7362
ad7e718c
JB		 7363 data = nla_nest_start(skb, attr);
7364
7365 ((void **)skb->cb)[0] = rdev;
7366 ((void **)skb->cb)[1] = hdr;
7367 ((void **)skb->cb)[2] = data;
7368
7369 return skb;
7370
7371 nla_put_failure:
7372 kfree_skb(skb);
7373 return NULL;
7374}
f4e583c8 7375
e03ad6ea
JB		 7376struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7377 enum nl80211_commands cmd,
7378 enum nl80211_attrs attr,
7379 int vendor_event_idx,
7380 int approxlen, gfp_t gfp)
7381{
f26cbf40 7382 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7383 const struct nl80211_vendor_cmd_info *info;
7384
7385 switch (cmd) {
7386 case NL80211_CMD_TESTMODE:
7387 if (WARN_ON(vendor_event_idx != -1))
7388 return NULL;
7389 info = NULL;
7390 break;
7391 case NL80211_CMD_VENDOR:
7392 if (WARN_ON(vendor_event_idx < 0 ||
7393 vendor_event_idx >= wiphy->n_vendor_events))
7394 return NULL;
7395 info = &wiphy->vendor_events[vendor_event_idx];
7396 break;
7397 default:
7398 WARN_ON(1);
7399 return NULL;
7400 }
7401
7402 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7403 cmd, attr, info, gfp);
7404}
7405EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7406
7407void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7408{
7409 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7410 void *hdr = ((void **)skb->cb)[1];
7411 struct nlattr *data = ((void **)skb->cb)[2];
7412 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7413
bd8c78e7
JB		 7414 /* clear CB data for netlink core to own from now on */
7415 memset(skb->cb, 0, sizeof(skb->cb));
7416
e03ad6ea
JB		 7417 nla_nest_end(skb, data);
7418 genlmsg_end(skb, hdr);
7419
7420 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7421 mcgrp = NL80211_MCGRP_VENDOR;
7422
7423 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7424 mcgrp, gfp);
7425}
7426EXPORT_SYMBOL(__cfg80211_send_event_skb);
7427
aff89a9b 7428#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7429static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7430{
4c476991 7431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7432 struct wireless_dev *wdev =
7433 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7434 int err;
7435
fc73f11f
DS		 7436 if (!rdev->ops->testmode_cmd)
7437 return -EOPNOTSUPP;
7438
7439 if (IS_ERR(wdev)) {
7440 err = PTR_ERR(wdev);
7441 if (err != -EINVAL)
7442 return err;
7443 wdev = NULL;
7444 } else if (wdev->wiphy != &rdev->wiphy) {
7445 return -EINVAL;
7446 }
7447
aff89a9b
JB		 7448 if (!info->attrs[NL80211_ATTR_TESTDATA])
7449 return -EINVAL;
7450
ad7e718c 7451 rdev->cur_cmd_info = info;
fc73f11f 7452 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7453 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7454 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7455 rdev->cur_cmd_info = NULL;
aff89a9b 7456
aff89a9b
JB		 7457 return err;
7458}
7459
71063f0e
WYG		 7460static int nl80211_testmode_dump(struct sk_buff *skb,
7461 struct netlink_callback *cb)
7462{
00918d33 7463 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7464 int err;
7465 long phy_idx;
7466 void *data = NULL;
7467 int data_len = 0;
7468
5fe231e8
JB		 7469 rtnl_lock();
7470
71063f0e
WYG		 7471 if (cb->args[0]) {
7472 /*
7473 * 0 is a valid index, but not valid for args[0],
7474 * so we need to offset by 1.
7475 */
7476 phy_idx = cb->args[0] - 1;
7477 } else {
7478 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7479 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7480 nl80211_policy);
7481 if (err)
5fe231e8 7482 goto out_err;
00918d33 7483
2bd7e35d
JB		 7484 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7485 nl80211_fam.attrbuf);
7486 if (IS_ERR(rdev)) {
5fe231e8
JB		 7487 err = PTR_ERR(rdev);
7488 goto out_err;
00918d33 7489 }
2bd7e35d
JB		 7490 phy_idx = rdev->wiphy_idx;
7491 rdev = NULL;
2bd7e35d 7492
71063f0e
WYG		 7493 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7494 cb->args[1] =
7495 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7496 }
7497
7498 if (cb->args[1]) {
7499 data = nla_data((void *)cb->args[1]);
7500 data_len = nla_len((void *)cb->args[1]);
7501 }
7502
00918d33
JB		 7503 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7504 if (!rdev) {
5fe231e8
JB		 7505 err = -ENOENT;
7506 goto out_err;
71063f0e 7507 }
71063f0e 7508
00918d33 7509 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7510 err = -EOPNOTSUPP;
7511 goto out_err;
7512 }
7513
7514 while (1) {
15e47304 7515 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7516 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7517 NL80211_CMD_TESTMODE);
7518 struct nlattr *tmdata;
7519
cb35fba3
DC		 7520 if (!hdr)
7521 break;
7522
9360ffd1 7523 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7524 genlmsg_cancel(skb, hdr);
7525 break;
7526 }
7527
7528 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7529 if (!tmdata) {
7530 genlmsg_cancel(skb, hdr);
7531 break;
7532 }
e35e4d28 7533 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7534 nla_nest_end(skb, tmdata);
7535
7536 if (err == -ENOBUFS || err == -ENOENT) {
7537 genlmsg_cancel(skb, hdr);
7538 break;
7539 } else if (err) {
7540 genlmsg_cancel(skb, hdr);
7541 goto out_err;
7542 }
7543
7544 genlmsg_end(skb, hdr);
7545 }
7546
7547 err = skb->len;
7548 /* see above */
7549 cb->args[0] = phy_idx + 1;
7550 out_err:
5fe231e8 7551 rtnl_unlock();
71063f0e
WYG		 7552 return err;
7553}
aff89a9b
JB		 7554#endif
7555
b23aa676
SO		 7556static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7557{
4c476991
JB		 7558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7559 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7560 struct cfg80211_connect_params connect;
7561 struct wiphy *wiphy;
fffd0934 7562 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7563 int err;
7564
7565 memset(&connect, 0, sizeof(connect));
7566
7567 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7568 return -EINVAL;
7569
7570 if (!info->attrs[NL80211_ATTR_SSID] ||
7571 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7572 return -EINVAL;
7573
7574 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7575 connect.auth_type =
7576 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7577 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7578 NL80211_CMD_CONNECT))
b23aa676
SO		 7579 return -EINVAL;
7580 } else
7581 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7582
7583 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7584
c0692b8f 7585 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7586 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7587 if (err)
7588 return err;
b23aa676 7589
074ac8df 7590 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7591 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7592 return -EOPNOTSUPP;
b23aa676 7593
79c97e97 7594 wiphy = &rdev->wiphy;
b23aa676 7595
4486ea98
BS		 7596 connect.bg_scan_period = -1;
7597 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7598 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7599 connect.bg_scan_period =
7600 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7601 }
7602
b23aa676
SO		 7603 if (info->attrs[NL80211_ATTR_MAC])
7604 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7605 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7606 connect.bssid_hint =
7607 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7608 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7609 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7610
7611 if (info->attrs[NL80211_ATTR_IE]) {
7612 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7613 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7614 }
7615
cee00a95
JM		 7616 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7617 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7618 if (connect.mfp != NL80211_MFP_REQUIRED &&
7619 connect.mfp != NL80211_MFP_NO)
7620 return -EINVAL;
7621 } else {
7622 connect.mfp = NL80211_MFP_NO;
7623 }
7624
b23aa676 7625 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7626 connect.channel = nl80211_get_valid_chan(
7627 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7628 if (!connect.channel)
1df4a510
JM		 7629 return -EINVAL;
7630 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7631 connect.channel_hint = nl80211_get_valid_chan(
7632 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7633 if (!connect.channel_hint)
4c476991 7634 return -EINVAL;
b23aa676
SO		 7635 }
7636
fffd0934
JB		 7637 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7638 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7639 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7640 if (IS_ERR(connkeys))
7641 return PTR_ERR(connkeys);
fffd0934
JB		 7642 }
7643
7e7c8926
BG		 7644 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7645 connect.flags |= ASSOC_REQ_DISABLE_HT;
7646
7647 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7648 memcpy(&connect.ht_capa_mask,
7649 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7650 sizeof(connect.ht_capa_mask));
7651
7652 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7653 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7654 kzfree(connkeys);
7e7c8926 7655 return -EINVAL;
b4e4f47e 7656 }
7e7c8926
BG		 7657 memcpy(&connect.ht_capa,
7658 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7659 sizeof(connect.ht_capa));
7660 }
7661
ee2aca34
JB		 7662 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7663 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7664
7665 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7666 memcpy(&connect.vht_capa_mask,
7667 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7668 sizeof(connect.vht_capa_mask));
7669
7670 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7671 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7672 kzfree(connkeys);
ee2aca34
JB		 7673 return -EINVAL;
7674 }
7675 memcpy(&connect.vht_capa,
7676 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7677 sizeof(connect.vht_capa));
7678 }
7679
bab5ab7d
AK		 7680 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7681 if (!(rdev->wiphy.features &
7682 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7683 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7684 return -EINVAL;
7685 connect.flags |= ASSOC_REQ_USE_RRM;
7686 }
7687
83739b03
JB		 7688 wdev_lock(dev->ieee80211_ptr);
7689 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7690 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7691 if (err)
b47f610b 7692 kzfree(connkeys);
b23aa676
SO		 7693 return err;
7694}
7695
7696static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7697{
4c476991
JB		 7698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7699 struct net_device *dev = info->user_ptr[1];
b23aa676 7700 u16 reason;
83739b03 7701 int ret;
b23aa676
SO		 7702
7703 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7704 reason = WLAN_REASON_DEAUTH_LEAVING;
7705 else
7706 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7707
7708 if (reason == 0)
7709 return -EINVAL;
7710
074ac8df 7711 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7712 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7713 return -EOPNOTSUPP;
b23aa676 7714
83739b03
JB		 7715 wdev_lock(dev->ieee80211_ptr);
7716 ret = cfg80211_disconnect(rdev, dev, reason, true);
7717 wdev_unlock(dev->ieee80211_ptr);
7718 return ret;
b23aa676
SO		 7719}
7720
463d0183
JB		 7721static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7722{
4c476991 7723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7724 struct net *net;
7725 int err;
7726 u32 pid;
7727
7728 if (!info->attrs[NL80211_ATTR_PID])
7729 return -EINVAL;
7730
7731 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7732
463d0183 7733 net = get_net_ns_by_pid(pid);
4c476991
JB		 7734 if (IS_ERR(net))
7735 return PTR_ERR(net);
463d0183
JB		 7736
7737 err = 0;
7738
7739 /* check if anything to do */
4c476991
JB		 7740 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7741 err = cfg80211_switch_netns(rdev, net);
463d0183 7742
463d0183 7743 put_net(net);
463d0183
JB		 7744 return err;
7745}
7746
67fbb16b
SO		 7747static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7748{
4c476991 7749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7750 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7751 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7752 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7753 struct cfg80211_pmksa pmksa;
7754
7755 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7756
7757 if (!info->attrs[NL80211_ATTR_MAC])
7758 return -EINVAL;
7759
7760 if (!info->attrs[NL80211_ATTR_PMKID])
7761 return -EINVAL;
7762
67fbb16b
SO		 7763 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7764 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7765
074ac8df 7766 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7767 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7768 return -EOPNOTSUPP;
67fbb16b
SO		 7769
7770 switch (info->genlhdr->cmd) {
7771 case NL80211_CMD_SET_PMKSA:
7772 rdev_ops = rdev->ops->set_pmksa;
7773 break;
7774 case NL80211_CMD_DEL_PMKSA:
7775 rdev_ops = rdev->ops->del_pmksa;
7776 break;
7777 default:
7778 WARN_ON(1);
7779 break;
7780 }
7781
4c476991
JB		 7782 if (!rdev_ops)
7783 return -EOPNOTSUPP;
67fbb16b 7784
4c476991 7785 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7786}
7787
7788static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7789{
4c476991
JB		 7790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7791 struct net_device *dev = info->user_ptr[1];
67fbb16b 7792
074ac8df 7793 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7794 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7795 return -EOPNOTSUPP;
67fbb16b 7796
4c476991
JB		 7797 if (!rdev->ops->flush_pmksa)
7798 return -EOPNOTSUPP;
67fbb16b 7799
e35e4d28 7800 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7801}
7802
109086ce
AN		 7803static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7804{
7805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7806 struct net_device *dev = info->user_ptr[1];
7807 u8 action_code, dialog_token;
df942e7b 7808 u32 peer_capability = 0;
109086ce
AN		 7809 u16 status_code;
7810 u8 *peer;
31fa97c5 7811 bool initiator;
109086ce
AN		 7812
7813 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7814 !rdev->ops->tdls_mgmt)
7815 return -EOPNOTSUPP;
7816
7817 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7818 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7819 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7820 !info->attrs[NL80211_ATTR_IE] ||
7821 !info->attrs[NL80211_ATTR_MAC])
7822 return -EINVAL;
7823
7824 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7825 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7826 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7827 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7828 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7829 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7830 peer_capability =
7831 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7832
e35e4d28 7833 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7834 dialog_token, status_code, peer_capability,
31fa97c5 7835 initiator,
e35e4d28
HG		 7836 nla_data(info->attrs[NL80211_ATTR_IE]),
7837 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7838}
7839
7840static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7841{
7842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7843 struct net_device *dev = info->user_ptr[1];
7844 enum nl80211_tdls_operation operation;
7845 u8 *peer;
7846
7847 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7848 !rdev->ops->tdls_oper)
7849 return -EOPNOTSUPP;
7850
7851 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7852 !info->attrs[NL80211_ATTR_MAC])
7853 return -EINVAL;
7854
7855 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7856 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7857
e35e4d28 7858 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7859}
7860
9588bbd5
JM		 7861static int nl80211_remain_on_channel(struct sk_buff *skb,
7862 struct genl_info *info)
7863{
4c476991 7864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7865 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7866 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7867 struct sk_buff *msg;
7868 void *hdr;
7869 u64 cookie;
683b6d3b 7870 u32 duration;
9588bbd5
JM		 7871 int err;
7872
7873 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7874 !info->attrs[NL80211_ATTR_DURATION])
7875 return -EINVAL;
7876
7877 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7878
ebf348fc
JB		 7879 if (!rdev->ops->remain_on_channel ||
7880 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7881 return -EOPNOTSUPP;
7882
9588bbd5 7883 /*
ebf348fc
JB		 7884 * We should be on that channel for at least a minimum amount of
7885 * time (10ms) but no longer than the driver supports.
9588bbd5 7886 */
ebf348fc 7887 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7888 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7889 return -EINVAL;
7890
683b6d3b
JB		 7891 err = nl80211_parse_chandef(rdev, info, &chandef);
7892 if (err)
7893 return err;
9588bbd5
JM		 7894
7895 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7896 if (!msg)
7897 return -ENOMEM;
9588bbd5 7898
15e47304 7899 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7900 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7901 if (!hdr) {
7902 err = -ENOBUFS;
9588bbd5
JM		 7903 goto free_msg;
7904 }
7905
683b6d3b
JB		 7906 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7907 duration, &cookie);
9588bbd5
JM		 7908
7909 if (err)
7910 goto free_msg;
7911
9360ffd1
DM		 7912 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7913 goto nla_put_failure;
9588bbd5
JM		 7914
7915 genlmsg_end(msg, hdr);
4c476991
JB		 7916
7917 return genlmsg_reply(msg, info);
9588bbd5
JM		 7918
7919 nla_put_failure:
7920 err = -ENOBUFS;
7921 free_msg:
7922 nlmsg_free(msg);
9588bbd5
JM		 7923 return err;
7924}
7925
7926static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7927 struct genl_info *info)
7928{
4c476991 7929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7930 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7931 u64 cookie;
9588bbd5
JM		 7932
7933 if (!info->attrs[NL80211_ATTR_COOKIE])
7934 return -EINVAL;
7935
4c476991
JB		 7936 if (!rdev->ops->cancel_remain_on_channel)
7937 return -EOPNOTSUPP;
9588bbd5 7938
9588bbd5
JM		 7939 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7940
e35e4d28 7941 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7942}
7943
13ae75b1
JM		 7944static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7945 u8 *rates, u8 rates_len)
7946{
7947 u8 i;
7948 u32 mask = 0;
7949
7950 for (i = 0; i < rates_len; i++) {
7951 int rate = (rates[i] & 0x7f) * 5;
7952 int ridx;
7953 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7954 struct ieee80211_rate *srate =
7955 &sband->bitrates[ridx];
7956 if (rate == srate->bitrate) {
7957 mask |= 1 << ridx;
7958 break;
7959 }
7960 }
7961 if (ridx == sband->n_bitrates)
7962 return 0; /* rate not found */
7963 }
7964
7965 return mask;
7966}
7967
24db78c0
SW		 7968static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7969 u8 *rates, u8 rates_len,
7970 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7971{
7972 u8 i;
7973
7974 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7975
7976 for (i = 0; i < rates_len; i++) {
7977 int ridx, rbit;
7978
7979 ridx = rates[i] / 8;
7980 rbit = BIT(rates[i] % 8);
7981
7982 /* check validity */
910570b5 7983 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7984 return false;
7985
7986 /* check availability */
7987 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7988 mcs[ridx] |= rbit;
7989 else
7990 return false;
7991 }
7992
7993 return true;
7994}
7995
204e35a9
JD		 7996static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7997{
7998 u16 mcs_mask = 0;
7999
8000 switch (vht_mcs_map) {
8001 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8002 break;
8003 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8004 mcs_mask = 0x00FF;
8005 break;
8006 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8007 mcs_mask = 0x01FF;
8008 break;
8009 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8010 mcs_mask = 0x03FF;
8011 break;
8012 default:
8013 break;
8014 }
8015
8016 return mcs_mask;
8017}
8018
8019static void vht_build_mcs_mask(u16 vht_mcs_map,
8020 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8021{
8022 u8 nss;
8023
8024 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8025 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8026 vht_mcs_map >>= 2;
8027 }
8028}
8029
8030static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8031 struct nl80211_txrate_vht *txrate,
8032 u16 mcs[NL80211_VHT_NSS_MAX])
8033{
8034 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8035 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8036 u8 i;
8037
8038 if (!sband->vht_cap.vht_supported)
8039 return false;
8040
8041 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8042
8043 /* Build vht_mcs_mask from VHT capabilities */
8044 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8045
8046 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8047 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8048 mcs[i] = txrate->mcs[i];
8049 else
8050 return false;
8051 }
8052
8053 return true;
8054}
8055
b54452b0 8056static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8057 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8058 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8059 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8060 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8061 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8062 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8063};
8064
8065static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8066 struct genl_info *info)
8067{
8068 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8070 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8071 int rem, i;
8072 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8073 struct nlattr *tx_rates;
8074 struct ieee80211_supported_band *sband;
204e35a9 8075 u16 vht_tx_mcs_map;
13ae75b1 8076
4c476991
JB		 8077 if (!rdev->ops->set_bitrate_mask)
8078 return -EOPNOTSUPP;
13ae75b1
JM		 8079
8080 memset(&mask, 0, sizeof(mask));
8081 /* Default to all rates enabled */
8082 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8083 sband = rdev->wiphy.bands[i];
7869303b
JD		 8084
8085 if (!sband)
8086 continue;
8087
8088 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8089 memcpy(mask.control[i].ht_mcs,
7869303b 8090 sband->ht_cap.mcs.rx_mask,
d1e33e65 8091 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8092
8093 if (!sband->vht_cap.vht_supported)
8094 continue;
8095
8096 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8097 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8098 }
8099
b9243ab0
JD		 8100 /* if no rates are given set it back to the defaults */
8101 if (!info->attrs[NL80211_ATTR_TX_RATES])
8102 goto out;
8103
13ae75b1
JM		 8104 /*
8105 * The nested attribute uses enum nl80211_band as the index. This maps
8106 * directly to the enum ieee80211_band values used in cfg80211.
8107 */
24db78c0 8108 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8109 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8110 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8111 int err;
8112
4c476991
JB		 8113 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8114 return -EINVAL;
13ae75b1 8115 sband = rdev->wiphy.bands[band];
4c476991
JB		 8116 if (sband == NULL)
8117 return -EINVAL;
ae811e21
JB		 8118 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8119 nla_len(tx_rates), nl80211_txattr_policy);
8120 if (err)
8121 return err;
13ae75b1
JM		 8122 if (tb[NL80211_TXRATE_LEGACY]) {
8123 mask.control[band].legacy = rateset_to_mask(
8124 sband,
8125 nla_data(tb[NL80211_TXRATE_LEGACY]),
8126 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8127 if ((mask.control[band].legacy == 0) &&
8128 nla_len(tb[NL80211_TXRATE_LEGACY]))
8129 return -EINVAL;
24db78c0 8130 }
d1e33e65 8131 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8132 if (!ht_rateset_to_mask(
8133 sband,
d1e33e65
JD		 8134 nla_data(tb[NL80211_TXRATE_HT]),
8135 nla_len(tb[NL80211_TXRATE_HT]),
8136 mask.control[band].ht_mcs))
24db78c0
SW		 8137 return -EINVAL;
8138 }
204e35a9
JD		 8139 if (tb[NL80211_TXRATE_VHT]) {
8140 if (!vht_set_mcs_mask(
8141 sband,
8142 nla_data(tb[NL80211_TXRATE_VHT]),
8143 mask.control[band].vht_mcs))
8144 return -EINVAL;
8145 }
0b9323f6
JD		 8146 if (tb[NL80211_TXRATE_GI]) {
8147 mask.control[band].gi =
8148 nla_get_u8(tb[NL80211_TXRATE_GI]);
8149 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8150 return -EINVAL;
8151 }
24db78c0
SW		 8152
8153 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8154 /* don't allow empty legacy rates if HT or VHT
8155 * are not even supported.
8156 */
8157 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8158 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8159 return -EINVAL;
8160
8161 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8162 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8163 goto out;
8164
8165 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8166 if (mask.control[band].vht_mcs[i])
8167 goto out;
24db78c0
SW		 8168
8169 /* legacy and mcs rates may not be both empty */
204e35a9 8170 return -EINVAL;
13ae75b1
JM		 8171 }
8172 }
8173
b9243ab0 8174out:
e35e4d28 8175 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8176}
8177
2e161f78 8178static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8179{
4c476991 8180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8181 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8182 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8183
8184 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8185 return -EINVAL;
8186
2e161f78
JB		 8187 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8188 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8189
71bbc994
JB		 8190 switch (wdev->iftype) {
8191 case NL80211_IFTYPE_STATION:
8192 case NL80211_IFTYPE_ADHOC:
8193 case NL80211_IFTYPE_P2P_CLIENT:
8194 case NL80211_IFTYPE_AP:
8195 case NL80211_IFTYPE_AP_VLAN:
8196 case NL80211_IFTYPE_MESH_POINT:
8197 case NL80211_IFTYPE_P2P_GO:
98104fde 8198 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8199 break;
8200 default:
4c476991 8201 return -EOPNOTSUPP;
71bbc994 8202 }
026331c4
JM		 8203
8204 /* not much point in registering if we can't reply */
4c476991
JB		 8205 if (!rdev->ops->mgmt_tx)
8206 return -EOPNOTSUPP;
026331c4 8207
15e47304 8208 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8209 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8210 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8211}
8212
2e161f78 8213static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8214{
4c476991 8215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8216 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8217 struct cfg80211_chan_def chandef;
026331c4 8218 int err;
d64d373f 8219 void *hdr = NULL;
026331c4 8220 u64 cookie;
e247bd90 8221 struct sk_buff *msg = NULL;
b176e629
AO		 8222 struct cfg80211_mgmt_tx_params params = {
8223 .dont_wait_for_ack =
8224 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8225 };
026331c4 8226
683b6d3b 8227 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8228 return -EINVAL;
8229
4c476991
JB		 8230 if (!rdev->ops->mgmt_tx)
8231 return -EOPNOTSUPP;
026331c4 8232
71bbc994 8233 switch (wdev->iftype) {
ea141b75
AQ		 8234 case NL80211_IFTYPE_P2P_DEVICE:
8235 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8236 return -EINVAL;
71bbc994
JB		 8237 case NL80211_IFTYPE_STATION:
8238 case NL80211_IFTYPE_ADHOC:
8239 case NL80211_IFTYPE_P2P_CLIENT:
8240 case NL80211_IFTYPE_AP:
8241 case NL80211_IFTYPE_AP_VLAN:
8242 case NL80211_IFTYPE_MESH_POINT:
8243 case NL80211_IFTYPE_P2P_GO:
8244 break;
8245 default:
4c476991 8246 return -EOPNOTSUPP;
71bbc994 8247 }
026331c4 8248
f7ca38df 8249 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8250 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8251 return -EINVAL;
b176e629 8252 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8253
8254 /*
8255 * We should wait on the channel for at least a minimum amount
8256 * of time (10ms) but no longer than the driver supports.
8257 */
b176e629
AO		 8258 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8259 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8260 return -EINVAL;
8261
f7ca38df
JB		 8262 }
8263
b176e629 8264 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8265
b176e629 8266 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8267 return -EINVAL;
8268
b176e629 8269 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8270
ea141b75
AQ		 8271 /* get the channel if any has been specified, otherwise pass NULL to
8272 * the driver. The latter will use the current one
8273 */
8274 chandef.chan = NULL;
8275 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8276 err = nl80211_parse_chandef(rdev, info, &chandef);
8277 if (err)
8278 return err;
8279 }
8280
b176e629 8281 if (!chandef.chan && params.offchan)
ea141b75 8282 return -EINVAL;
026331c4 8283
34d22ce2
AO		 8284 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8285 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8286
8287 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8288 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8289 int i;
8290
8291 if (len % sizeof(u16))
8292 return -EINVAL;
8293
8294 params.n_csa_offsets = len / sizeof(u16);
8295 params.csa_offsets =
8296 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8297
8298 /* check that all the offsets fit the frame */
8299 for (i = 0; i < params.n_csa_offsets; i++) {
8300 if (params.csa_offsets[i] >= params.len)
8301 return -EINVAL;
8302 }
8303 }
8304
b176e629 8305 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8307 if (!msg)
8308 return -ENOMEM;
026331c4 8309
15e47304 8310 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8311 NL80211_CMD_FRAME);
cb35fba3
DC		 8312 if (!hdr) {
8313 err = -ENOBUFS;
e247bd90
JB		 8314 goto free_msg;
8315 }
026331c4 8316 }
e247bd90 8317
b176e629
AO		 8318 params.chan = chandef.chan;
8319 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8320 if (err)
8321 goto free_msg;
8322
e247bd90 8323 if (msg) {
9360ffd1
DM		 8324 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8325 goto nla_put_failure;
026331c4 8326
e247bd90
JB		 8327 genlmsg_end(msg, hdr);
8328 return genlmsg_reply(msg, info);
8329 }
8330
8331 return 0;
026331c4
JM		 8332
8333 nla_put_failure:
8334 err = -ENOBUFS;
8335 free_msg:
8336 nlmsg_free(msg);
026331c4
JM		 8337 return err;
8338}
8339
f7ca38df
JB		 8340static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8341{
8342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8343 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8344 u64 cookie;
8345
8346 if (!info->attrs[NL80211_ATTR_COOKIE])
8347 return -EINVAL;
8348
8349 if (!rdev->ops->mgmt_tx_cancel_wait)
8350 return -EOPNOTSUPP;
8351
71bbc994
JB		 8352 switch (wdev->iftype) {
8353 case NL80211_IFTYPE_STATION:
8354 case NL80211_IFTYPE_ADHOC:
8355 case NL80211_IFTYPE_P2P_CLIENT:
8356 case NL80211_IFTYPE_AP:
8357 case NL80211_IFTYPE_AP_VLAN:
8358 case NL80211_IFTYPE_P2P_GO:
98104fde 8359 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8360 break;
8361 default:
f7ca38df 8362 return -EOPNOTSUPP;
71bbc994 8363 }
f7ca38df
JB		 8364
8365 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8366
e35e4d28 8367 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8368}
8369
ffb9eb3d
KV		 8370static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8371{
4c476991 8372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8373 struct wireless_dev *wdev;
4c476991 8374 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8375 u8 ps_state;
8376 bool state;
8377 int err;
8378
4c476991
JB		 8379 if (!info->attrs[NL80211_ATTR_PS_STATE])
8380 return -EINVAL;
ffb9eb3d
KV		 8381
8382 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8383
4c476991
JB		 8384 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8385 return -EINVAL;
ffb9eb3d
KV		 8386
8387 wdev = dev->ieee80211_ptr;
8388
4c476991
JB		 8389 if (!rdev->ops->set_power_mgmt)
8390 return -EOPNOTSUPP;
ffb9eb3d
KV		 8391
8392 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8393
8394 if (state == wdev->ps)
4c476991 8395 return 0;
ffb9eb3d 8396
e35e4d28 8397 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8398 if (!err)
8399 wdev->ps = state;
ffb9eb3d
KV		 8400 return err;
8401}
8402
8403static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8404{
4c476991 8405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8406 enum nl80211_ps_state ps_state;
8407 struct wireless_dev *wdev;
4c476991 8408 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8409 struct sk_buff *msg;
8410 void *hdr;
8411 int err;
8412
ffb9eb3d
KV		 8413 wdev = dev->ieee80211_ptr;
8414
4c476991
JB		 8415 if (!rdev->ops->set_power_mgmt)
8416 return -EOPNOTSUPP;
ffb9eb3d
KV		 8417
8418 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8419 if (!msg)
8420 return -ENOMEM;
ffb9eb3d 8421
15e47304 8422 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8423 NL80211_CMD_GET_POWER_SAVE);
8424 if (!hdr) {
4c476991 8425 err = -ENOBUFS;
ffb9eb3d
KV		 8426 goto free_msg;
8427 }
8428
8429 if (wdev->ps)
8430 ps_state = NL80211_PS_ENABLED;
8431 else
8432 ps_state = NL80211_PS_DISABLED;
8433
9360ffd1
DM		 8434 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8435 goto nla_put_failure;
ffb9eb3d
KV		 8436
8437 genlmsg_end(msg, hdr);
4c476991 8438 return genlmsg_reply(msg, info);
ffb9eb3d 8439
4c476991 8440 nla_put_failure:
ffb9eb3d 8441 err = -ENOBUFS;
4c476991 8442 free_msg:
ffb9eb3d 8443 nlmsg_free(msg);
ffb9eb3d
KV		 8444 return err;
8445}
8446
94e860f1
JB		 8447static const struct nla_policy
8448nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8449 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8450 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8451 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8452 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8453 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8454 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8455};
8456
84f10708 8457static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8458 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8459{
8460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8461 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8462 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8463
d9d8b019 8464 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8465 return -EINVAL;
8466
84f10708
TP		 8467 if (!rdev->ops->set_cqm_txe_config)
8468 return -EOPNOTSUPP;
8469
8470 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8471 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8472 return -EOPNOTSUPP;
8473
e35e4d28 8474 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8475}
8476
d6dc1a38
JO		 8477static int nl80211_set_cqm_rssi(struct genl_info *info,
8478 s32 threshold, u32 hysteresis)
8479{
4c476991 8480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8481 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8482 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8483
8484 if (threshold > 0)
8485 return -EINVAL;
8486
1da5fcc8
JB		 8487 /* disabling - hysteresis should also be zero then */
8488 if (threshold == 0)
8489 hysteresis = 0;
d6dc1a38 8490
4c476991
JB		 8491 if (!rdev->ops->set_cqm_rssi_config)
8492 return -EOPNOTSUPP;
d6dc1a38 8493
074ac8df 8494 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8495 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8496 return -EOPNOTSUPP;
d6dc1a38 8497
e35e4d28 8498 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8499}
8500
8501static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8502{
8503 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8504 struct nlattr *cqm;
8505 int err;
8506
8507 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8508 if (!cqm)
8509 return -EINVAL;
d6dc1a38
JO		 8510
8511 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8512 nl80211_attr_cqm_policy);
8513 if (err)
1da5fcc8 8514 return err;
d6dc1a38
JO		 8515
8516 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8517 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8518 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8519 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8520
1da5fcc8
JB		 8521 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8522 }
8523
8524 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8525 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8526 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8527 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8528 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8529 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8530
8531 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8532 }
8533
8534 return -EINVAL;
d6dc1a38
JO		 8535}
8536
6e0bd6c3
RL		 8537static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8538{
8539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8540 struct net_device *dev = info->user_ptr[1];
8541 struct ocb_setup setup = {};
8542 int err;
8543
8544 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8545 if (err)
8546 return err;
8547
8548 return cfg80211_join_ocb(rdev, dev, &setup);
8549}
8550
8551static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8552{
8553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8554 struct net_device *dev = info->user_ptr[1];
8555
8556 return cfg80211_leave_ocb(rdev, dev);
8557}
8558
29cbe68c
JB		 8559static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8560{
8561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8562 struct net_device *dev = info->user_ptr[1];
8563 struct mesh_config cfg;
c80d545d 8564 struct mesh_setup setup;
29cbe68c
JB		 8565 int err;
8566
8567 /* start with default */
8568 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8569 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8570
24bdd9f4 8571 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8572 /* and parse parameters if given */
24bdd9f4 8573 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8574 if (err)
8575 return err;
8576 }
8577
8578 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8579 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8580 return -EINVAL;
8581
c80d545d
JC		 8582 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8583 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8584
4bb62344
CYY		 8585 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8586 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8587 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8588 return -EINVAL;
8589
9bdbf04d
MP		 8590 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8591 setup.beacon_interval =
8592 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8593 if (setup.beacon_interval < 10 ||
8594 setup.beacon_interval > 10000)
8595 return -EINVAL;
8596 }
8597
8598 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8599 setup.dtim_period =
8600 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8601 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8602 return -EINVAL;
8603 }
8604
c80d545d
JC		 8605 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8606 /* parse additional setup parameters if given */
8607 err = nl80211_parse_mesh_setup(info, &setup);
8608 if (err)
8609 return err;
8610 }
8611
d37bb18a
TP		 8612 if (setup.user_mpm)
8613 cfg.auto_open_plinks = false;
8614
cc1d2806 8615 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8616 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8617 if (err)
8618 return err;
cc1d2806
JB		 8619 } else {
8620 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8621 setup.chandef.chan = NULL;
cc1d2806
JB		 8622 }
8623
ffb3cf30
AN		 8624 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8625 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8626 int n_rates =
8627 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8628 struct ieee80211_supported_band *sband;
8629
8630 if (!setup.chandef.chan)
8631 return -EINVAL;
8632
8633 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8634
8635 err = ieee80211_get_ratemask(sband, rates, n_rates,
8636 &setup.basic_rates);
8637 if (err)
8638 return err;
8639 }
8640
c80d545d 8641 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8642}
8643
8644static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8645{
8646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8647 struct net_device *dev = info->user_ptr[1];
8648
8649 return cfg80211_leave_mesh(rdev, dev);
8650}
8651
dfb89c56 8652#ifdef CONFIG_PM
bb92d199
AK		 8653static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8654 struct cfg80211_registered_device *rdev)
8655{
6abb9cb9 8656 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8657 struct nlattr *nl_pats, *nl_pat;
8658 int i, pat_len;
8659
6abb9cb9 8660 if (!wowlan->n_patterns)
bb92d199
AK		 8661 return 0;
8662
8663 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8664 if (!nl_pats)
8665 return -ENOBUFS;
8666
6abb9cb9 8667 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8668 nl_pat = nla_nest_start(msg, i + 1);
8669 if (!nl_pat)
8670 return -ENOBUFS;
6abb9cb9 8671 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8672 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8673 wowlan->patterns[i].mask) ||
50ac6607
AK		 8674 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8675 wowlan->patterns[i].pattern) ||
8676 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8677 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8678 return -ENOBUFS;
8679 nla_nest_end(msg, nl_pat);
8680 }
8681 nla_nest_end(msg, nl_pats);
8682
8683 return 0;
8684}
8685
2a0e047e
JB		 8686static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8687 struct cfg80211_wowlan_tcp *tcp)
8688{
8689 struct nlattr *nl_tcp;
8690
8691 if (!tcp)
8692 return 0;
8693
8694 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8695 if (!nl_tcp)
8696 return -ENOBUFS;
8697
8698 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8699 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8700 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8701 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8702 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8703 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8704 tcp->payload_len, tcp->payload) ||
8705 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8706 tcp->data_interval) ||
8707 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8708 tcp->wake_len, tcp->wake_data) ||
8709 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8710 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8711 return -ENOBUFS;
8712
8713 if (tcp->payload_seq.len &&
8714 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8715 sizeof(tcp->payload_seq), &tcp->payload_seq))
8716 return -ENOBUFS;
8717
8718 if (tcp->payload_tok.len &&
8719 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8720 sizeof(tcp->payload_tok) + tcp->tokens_size,
8721 &tcp->payload_tok))
8722 return -ENOBUFS;
8723
e248ad30
JB		 8724 nla_nest_end(msg, nl_tcp);
8725
2a0e047e
JB		 8726 return 0;
8727}
8728
ff1b6e69
JB		 8729static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8730{
8731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8732 struct sk_buff *msg;
8733 void *hdr;
2a0e047e 8734 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8735
964dc9e2 8736 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8737 return -EOPNOTSUPP;
8738
6abb9cb9 8739 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8740 /* adjust size to have room for all the data */
6abb9cb9
JB		 8741 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8742 rdev->wiphy.wowlan_config->tcp->payload_len +
8743 rdev->wiphy.wowlan_config->tcp->wake_len +
8744 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8745 }
8746
8747 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8748 if (!msg)
8749 return -ENOMEM;
8750
15e47304 8751 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8752 NL80211_CMD_GET_WOWLAN);
8753 if (!hdr)
8754 goto nla_put_failure;
8755
6abb9cb9 8756 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8757 struct nlattr *nl_wowlan;
8758
8759 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8760 if (!nl_wowlan)
8761 goto nla_put_failure;
8762
6abb9cb9 8763 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8764 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8765 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8766 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8767 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8768 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8769 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8770 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8771 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8772 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8773 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8774 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8775 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8776 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8777 goto nla_put_failure;
2a0e047e 8778
bb92d199
AK		 8779 if (nl80211_send_wowlan_patterns(msg, rdev))
8780 goto nla_put_failure;
2a0e047e 8781
6abb9cb9
JB		 8782 if (nl80211_send_wowlan_tcp(msg,
8783 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8784 goto nla_put_failure;
8785
ff1b6e69
JB		 8786 nla_nest_end(msg, nl_wowlan);
8787 }
8788
8789 genlmsg_end(msg, hdr);
8790 return genlmsg_reply(msg, info);
8791
8792nla_put_failure:
8793 nlmsg_free(msg);
8794 return -ENOBUFS;
8795}
8796
2a0e047e
JB		 8797static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8798 struct nlattr *attr,
8799 struct cfg80211_wowlan *trig)
8800{
8801 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8802 struct cfg80211_wowlan_tcp *cfg;
8803 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8804 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8805 u32 size;
8806 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8807 int err, port;
8808
964dc9e2 8809 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8810 return -EINVAL;
8811
8812 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8813 nla_data(attr), nla_len(attr),
8814 nl80211_wowlan_tcp_policy);
8815 if (err)
8816 return err;
8817
8818 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8819 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8820 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8821 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8822 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8823 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8824 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8825 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8826 return -EINVAL;
8827
8828 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8829 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8830 return -EINVAL;
8831
8832 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8833 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8834 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8835 return -EINVAL;
8836
8837 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8838 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8839 return -EINVAL;
8840
8841 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8842 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8843 return -EINVAL;
8844
8845 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8846 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8847
8848 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8849 tokens_size = tokln - sizeof(*tok);
8850
8851 if (!tok->len || tokens_size % tok->len)
8852 return -EINVAL;
964dc9e2 8853 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8854 return -EINVAL;
964dc9e2 8855 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8856 return -EINVAL;
964dc9e2 8857 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8858 return -EINVAL;
964dc9e2 8859 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8860 return -EINVAL;
8861 if (tok->offset + tok->len > data_size)
8862 return -EINVAL;
8863 }
8864
8865 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8866 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8867 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8868 return -EINVAL;
8869 if (seq->len == 0 || seq->len > 4)
8870 return -EINVAL;
8871 if (seq->len + seq->offset > data_size)
8872 return -EINVAL;
8873 }
8874
8875 size = sizeof(*cfg);
8876 size += data_size;
8877 size += wake_size + wake_mask_size;
8878 size += tokens_size;
8879
8880 cfg = kzalloc(size, GFP_KERNEL);
8881 if (!cfg)
8882 return -ENOMEM;
8883 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8884 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8885 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8886 ETH_ALEN);
8887 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8888 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8889 else
8890 port = 0;
8891#ifdef CONFIG_INET
8892 /* allocate a socket and port for it and use it */
8893 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8894 IPPROTO_TCP, &cfg->sock, 1);
8895 if (err) {
8896 kfree(cfg);
8897 return err;
8898 }
8899 if (inet_csk_get_port(cfg->sock->sk, port)) {
8900 sock_release(cfg->sock);
8901 kfree(cfg);
8902 return -EADDRINUSE;
8903 }
8904 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8905#else
8906 if (!port) {
8907 kfree(cfg);
8908 return -EINVAL;
8909 }
8910 cfg->src_port = port;
8911#endif
8912
8913 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8914 cfg->payload_len = data_size;
8915 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8916 memcpy((void *)cfg->payload,
8917 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8918 data_size);
8919 if (seq)
8920 cfg->payload_seq = *seq;
8921 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8922 cfg->wake_len = wake_size;
8923 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8924 memcpy((void *)cfg->wake_data,
8925 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8926 wake_size);
8927 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8928 data_size + wake_size;
8929 memcpy((void *)cfg->wake_mask,
8930 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8931 wake_mask_size);
8932 if (tok) {
8933 cfg->tokens_size = tokens_size;
8934 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8935 }
8936
8937 trig->tcp = cfg;
8938
8939 return 0;
8940}
8941
8cd4d456
LC		 8942static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
8943 const struct wiphy_wowlan_support *wowlan,
8944 struct nlattr *attr,
8945 struct cfg80211_wowlan *trig)
8946{
8947 struct nlattr **tb;
8948 int err;
8949
8950 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
8951 if (!tb)
8952 return -ENOMEM;
8953
8954 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
8955 err = -EOPNOTSUPP;
8956 goto out;
8957 }
8958
8959 err = nla_parse(tb, NL80211_ATTR_MAX,
8960 nla_data(attr), nla_len(attr),
8961 nl80211_policy);
8962 if (err)
8963 goto out;
8964
ad2b26ab 8965 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 8966 err = PTR_ERR_OR_ZERO(trig->nd_config);
8967 if (err)
8968 trig->nd_config = NULL;
8969
8970out:
8971 kfree(tb);
8972 return err;
8973}
8974
ff1b6e69
JB		 8975static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8976{
8977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8978 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8979 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8980 struct cfg80211_wowlan *ntrig;
964dc9e2 8981 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8982 int err, i;
6abb9cb9 8983 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8984
964dc9e2 8985 if (!wowlan)
ff1b6e69
JB		 8986 return -EOPNOTSUPP;
8987
ae33bd81
JB		 8988 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8989 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8990 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8991 goto set_wakeup;
8992 }
ff1b6e69
JB		 8993
8994 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8995 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8996 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8997 nl80211_wowlan_policy);
8998 if (err)
8999 return err;
9000
9001 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9002 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9003 return -EINVAL;
9004 new_triggers.any = true;
9005 }
9006
9007 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9008 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9009 return -EINVAL;
9010 new_triggers.disconnect = true;
9011 }
9012
9013 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9014 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9015 return -EINVAL;
9016 new_triggers.magic_pkt = true;
9017 }
9018
77dbbb13
JB		 9019 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9020 return -EINVAL;
9021
9022 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9023 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9024 return -EINVAL;
9025 new_triggers.gtk_rekey_failure = true;
9026 }
9027
9028 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9029 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9030 return -EINVAL;
9031 new_triggers.eap_identity_req = true;
9032 }
9033
9034 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9035 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9036 return -EINVAL;
9037 new_triggers.four_way_handshake = true;
9038 }
9039
9040 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9041 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9042 return -EINVAL;
9043 new_triggers.rfkill_release = true;
9044 }
9045
ff1b6e69
JB		 9046 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9047 struct nlattr *pat;
9048 int n_patterns = 0;
bb92d199 9049 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9050 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 9051
9052 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9053 rem)
9054 n_patterns++;
9055 if (n_patterns > wowlan->n_patterns)
9056 return -EINVAL;
9057
9058 new_triggers.patterns = kcalloc(n_patterns,
9059 sizeof(new_triggers.patterns[0]),
9060 GFP_KERNEL);
9061 if (!new_triggers.patterns)
9062 return -ENOMEM;
9063
9064 new_triggers.n_patterns = n_patterns;
9065 i = 0;
9066
9067 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9068 rem) {
922bd80f
JB		 9069 u8 *mask_pat;
9070
50ac6607
AK		 9071 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9072 nla_len(pat), NULL);
ff1b6e69 9073 err = -EINVAL;
50ac6607
AK		 9074 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9075 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9076 goto error;
50ac6607 9077 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9078 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9079 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9080 goto error;
9081 if (pat_len > wowlan->pattern_max_len ||
9082 pat_len < wowlan->pattern_min_len)
9083 goto error;
9084
50ac6607 9085 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9086 pkt_offset = 0;
9087 else
9088 pkt_offset = nla_get_u32(
50ac6607 9089 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9090 if (pkt_offset > wowlan->max_pkt_offset)
9091 goto error;
9092 new_triggers.patterns[i].pkt_offset = pkt_offset;
9093
922bd80f
JB		 9094 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9095 if (!mask_pat) {
ff1b6e69
JB		 9096 err = -ENOMEM;
9097 goto error;
9098 }
922bd80f
JB		 9099 new_triggers.patterns[i].mask = mask_pat;
9100 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9101 mask_len);
922bd80f
JB		 9102 mask_pat += mask_len;
9103 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9104 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9105 memcpy(mask_pat,
50ac6607 9106 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9107 pat_len);
9108 i++;
9109 }
9110 }
9111
2a0e047e
JB		 9112 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9113 err = nl80211_parse_wowlan_tcp(
9114 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9115 &new_triggers);
9116 if (err)
9117 goto error;
9118 }
9119
8cd4d456
LC		 9120 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9121 err = nl80211_parse_wowlan_nd(
9122 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9123 &new_triggers);
9124 if (err)
9125 goto error;
9126 }
9127
ae33bd81
JB		 9128 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9129 if (!ntrig) {
9130 err = -ENOMEM;
9131 goto error;
ff1b6e69 9132 }
ae33bd81 9133 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9134 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9135
ae33bd81 9136 set_wakeup:
6abb9cb9
JB		 9137 if (rdev->ops->set_wakeup &&
9138 prev_enabled != !!rdev->wiphy.wowlan_config)
9139 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9140
ff1b6e69
JB		 9141 return 0;
9142 error:
9143 for (i = 0; i < new_triggers.n_patterns; i++)
9144 kfree(new_triggers.patterns[i].mask);
9145 kfree(new_triggers.patterns);
2a0e047e
JB		 9146 if (new_triggers.tcp && new_triggers.tcp->sock)
9147 sock_release(new_triggers.tcp->sock);
9148 kfree(new_triggers.tcp);
ff1b6e69
JB		 9149 return err;
9150}
dfb89c56 9151#endif
ff1b6e69 9152
be29b99a
AK		 9153static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9154 struct cfg80211_registered_device *rdev)
9155{
9156 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9157 int i, j, pat_len;
9158 struct cfg80211_coalesce_rules *rule;
9159
9160 if (!rdev->coalesce->n_rules)
9161 return 0;
9162
9163 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9164 if (!nl_rules)
9165 return -ENOBUFS;
9166
9167 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9168 nl_rule = nla_nest_start(msg, i + 1);
9169 if (!nl_rule)
9170 return -ENOBUFS;
9171
9172 rule = &rdev->coalesce->rules[i];
9173 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9174 rule->delay))
9175 return -ENOBUFS;
9176
9177 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9178 rule->condition))
9179 return -ENOBUFS;
9180
9181 nl_pats = nla_nest_start(msg,
9182 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9183 if (!nl_pats)
9184 return -ENOBUFS;
9185
9186 for (j = 0; j < rule->n_patterns; j++) {
9187 nl_pat = nla_nest_start(msg, j + 1);
9188 if (!nl_pat)
9189 return -ENOBUFS;
9190 pat_len = rule->patterns[j].pattern_len;
9191 if (nla_put(msg, NL80211_PKTPAT_MASK,
9192 DIV_ROUND_UP(pat_len, 8),
9193 rule->patterns[j].mask) ||
9194 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9195 rule->patterns[j].pattern) ||
9196 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9197 rule->patterns[j].pkt_offset))
9198 return -ENOBUFS;
9199 nla_nest_end(msg, nl_pat);
9200 }
9201 nla_nest_end(msg, nl_pats);
9202 nla_nest_end(msg, nl_rule);
9203 }
9204 nla_nest_end(msg, nl_rules);
9205
9206 return 0;
9207}
9208
9209static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9210{
9211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9212 struct sk_buff *msg;
9213 void *hdr;
9214
9215 if (!rdev->wiphy.coalesce)
9216 return -EOPNOTSUPP;
9217
9218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9219 if (!msg)
9220 return -ENOMEM;
9221
9222 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9223 NL80211_CMD_GET_COALESCE);
9224 if (!hdr)
9225 goto nla_put_failure;
9226
9227 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9228 goto nla_put_failure;
9229
9230 genlmsg_end(msg, hdr);
9231 return genlmsg_reply(msg, info);
9232
9233nla_put_failure:
9234 nlmsg_free(msg);
9235 return -ENOBUFS;
9236}
9237
9238void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9239{
9240 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9241 int i, j;
9242 struct cfg80211_coalesce_rules *rule;
9243
9244 if (!coalesce)
9245 return;
9246
9247 for (i = 0; i < coalesce->n_rules; i++) {
9248 rule = &coalesce->rules[i];
9249 for (j = 0; j < rule->n_patterns; j++)
9250 kfree(rule->patterns[j].mask);
9251 kfree(rule->patterns);
9252 }
9253 kfree(coalesce->rules);
9254 kfree(coalesce);
9255 rdev->coalesce = NULL;
9256}
9257
9258static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9259 struct nlattr *rule,
9260 struct cfg80211_coalesce_rules *new_rule)
9261{
9262 int err, i;
9263 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9264 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9265 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9266 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9267
9268 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9269 nla_len(rule), nl80211_coalesce_policy);
9270 if (err)
9271 return err;
9272
9273 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9274 new_rule->delay =
9275 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9276 if (new_rule->delay > coalesce->max_delay)
9277 return -EINVAL;
9278
9279 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9280 new_rule->condition =
9281 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9282 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9283 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9284 return -EINVAL;
9285
9286 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9287 return -EINVAL;
9288
9289 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9290 rem)
9291 n_patterns++;
9292 if (n_patterns > coalesce->n_patterns)
9293 return -EINVAL;
9294
9295 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9296 GFP_KERNEL);
9297 if (!new_rule->patterns)
9298 return -ENOMEM;
9299
9300 new_rule->n_patterns = n_patterns;
9301 i = 0;
9302
9303 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9304 rem) {
922bd80f
JB		 9305 u8 *mask_pat;
9306
be29b99a
AK		 9307 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9308 nla_len(pat), NULL);
9309 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9310 !pat_tb[NL80211_PKTPAT_PATTERN])
9311 return -EINVAL;
9312 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9313 mask_len = DIV_ROUND_UP(pat_len, 8);
9314 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9315 return -EINVAL;
9316 if (pat_len > coalesce->pattern_max_len ||
9317 pat_len < coalesce->pattern_min_len)
9318 return -EINVAL;
9319
9320 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9321 pkt_offset = 0;
9322 else
9323 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9324 if (pkt_offset > coalesce->max_pkt_offset)
9325 return -EINVAL;
9326 new_rule->patterns[i].pkt_offset = pkt_offset;
9327
922bd80f
JB		 9328 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9329 if (!mask_pat)
be29b99a 9330 return -ENOMEM;
922bd80f
JB		 9331
9332 new_rule->patterns[i].mask = mask_pat;
9333 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9334 mask_len);
9335
9336 mask_pat += mask_len;
9337 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9338 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9339 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9340 pat_len);
be29b99a
AK		 9341 i++;
9342 }
9343
9344 return 0;
9345}
9346
9347static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9348{
9349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9350 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9351 struct cfg80211_coalesce new_coalesce = {};
9352 struct cfg80211_coalesce *n_coalesce;
9353 int err, rem_rule, n_rules = 0, i, j;
9354 struct nlattr *rule;
9355 struct cfg80211_coalesce_rules *tmp_rule;
9356
9357 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9358 return -EOPNOTSUPP;
9359
9360 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9361 cfg80211_rdev_free_coalesce(rdev);
9362 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9363 return 0;
9364 }
9365
9366 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9367 rem_rule)
9368 n_rules++;
9369 if (n_rules > coalesce->n_rules)
9370 return -EINVAL;
9371
9372 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9373 GFP_KERNEL);
9374 if (!new_coalesce.rules)
9375 return -ENOMEM;
9376
9377 new_coalesce.n_rules = n_rules;
9378 i = 0;
9379
9380 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9381 rem_rule) {
9382 err = nl80211_parse_coalesce_rule(rdev, rule,
9383 &new_coalesce.rules[i]);
9384 if (err)
9385 goto error;
9386
9387 i++;
9388 }
9389
9390 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9391 if (err)
9392 goto error;
9393
9394 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9395 if (!n_coalesce) {
9396 err = -ENOMEM;
9397 goto error;
9398 }
9399 cfg80211_rdev_free_coalesce(rdev);
9400 rdev->coalesce = n_coalesce;
9401
9402 return 0;
9403error:
9404 for (i = 0; i < new_coalesce.n_rules; i++) {
9405 tmp_rule = &new_coalesce.rules[i];
9406 for (j = 0; j < tmp_rule->n_patterns; j++)
9407 kfree(tmp_rule->patterns[j].mask);
9408 kfree(tmp_rule->patterns);
9409 }
9410 kfree(new_coalesce.rules);
9411
9412 return err;
9413}
9414
e5497d76
JB		 9415static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9416{
9417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9418 struct net_device *dev = info->user_ptr[1];
9419 struct wireless_dev *wdev = dev->ieee80211_ptr;
9420 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9421 struct cfg80211_gtk_rekey_data rekey_data;
9422 int err;
9423
9424 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9425 return -EINVAL;
9426
9427 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9428 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9429 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9430 nl80211_rekey_policy);
9431 if (err)
9432 return err;
9433
9434 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9435 return -ERANGE;
9436 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9437 return -ERANGE;
9438 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9439 return -ERANGE;
9440
78f686ca
JB		 9441 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9442 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9443 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9444
9445 wdev_lock(wdev);
9446 if (!wdev->current_bss) {
9447 err = -ENOTCONN;
9448 goto out;
9449 }
9450
9451 if (!rdev->ops->set_rekey_data) {
9452 err = -EOPNOTSUPP;
9453 goto out;
9454 }
9455
e35e4d28 9456 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9457 out:
9458 wdev_unlock(wdev);
9459 return err;
9460}
9461
28946da7
JB		 9462static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9463 struct genl_info *info)
9464{
9465 struct net_device *dev = info->user_ptr[1];
9466 struct wireless_dev *wdev = dev->ieee80211_ptr;
9467
9468 if (wdev->iftype != NL80211_IFTYPE_AP &&
9469 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9470 return -EINVAL;
9471
15e47304 9472 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9473 return -EBUSY;
9474
15e47304 9475 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9476 return 0;
9477}
9478
7f6cf311
JB		 9479static int nl80211_probe_client(struct sk_buff *skb,
9480 struct genl_info *info)
9481{
9482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9483 struct net_device *dev = info->user_ptr[1];
9484 struct wireless_dev *wdev = dev->ieee80211_ptr;
9485 struct sk_buff *msg;
9486 void *hdr;
9487 const u8 *addr;
9488 u64 cookie;
9489 int err;
9490
9491 if (wdev->iftype != NL80211_IFTYPE_AP &&
9492 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9493 return -EOPNOTSUPP;
9494
9495 if (!info->attrs[NL80211_ATTR_MAC])
9496 return -EINVAL;
9497
9498 if (!rdev->ops->probe_client)
9499 return -EOPNOTSUPP;
9500
9501 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9502 if (!msg)
9503 return -ENOMEM;
9504
15e47304 9505 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9506 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9507 if (!hdr) {
9508 err = -ENOBUFS;
7f6cf311
JB		 9509 goto free_msg;
9510 }
9511
9512 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9513
e35e4d28 9514 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9515 if (err)
9516 goto free_msg;
9517
9360ffd1
DM		 9518 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9519 goto nla_put_failure;
7f6cf311
JB		 9520
9521 genlmsg_end(msg, hdr);
9522
9523 return genlmsg_reply(msg, info);
9524
9525 nla_put_failure:
9526 err = -ENOBUFS;
9527 free_msg:
9528 nlmsg_free(msg);
9529 return err;
9530}
9531
5e760230
JB		 9532static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9533{
9534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9535 struct cfg80211_beacon_registration *reg, *nreg;
9536 int rv;
5e760230
JB		 9537
9538 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9539 return -EOPNOTSUPP;
9540
37c73b5f
BG		 9541 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9542 if (!nreg)
9543 return -ENOMEM;
9544
9545 /* First, check if already registered. */
9546 spin_lock_bh(&rdev->beacon_registrations_lock);
9547 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9548 if (reg->nlportid == info->snd_portid) {
9549 rv = -EALREADY;
9550 goto out_err;
9551 }
9552 }
9553 /* Add it to the list */
9554 nreg->nlportid = info->snd_portid;
9555 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9556
37c73b5f 9557 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9558
9559 return 0;
37c73b5f
BG		 9560out_err:
9561 spin_unlock_bh(&rdev->beacon_registrations_lock);
9562 kfree(nreg);
9563 return rv;
5e760230
JB		 9564}
9565
98104fde
JB		 9566static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9567{
9568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9569 struct wireless_dev *wdev = info->user_ptr[1];
9570 int err;
9571
9572 if (!rdev->ops->start_p2p_device)
9573 return -EOPNOTSUPP;
9574
9575 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9576 return -EOPNOTSUPP;
9577
9578 if (wdev->p2p_started)
9579 return 0;
9580
b6a55015
LC		 9581 if (rfkill_blocked(rdev->rfkill))
9582 return -ERFKILL;
98104fde 9583
eeb126e9 9584 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9585 if (err)
9586 return err;
9587
9588 wdev->p2p_started = true;
98104fde 9589 rdev->opencount++;
98104fde
JB		 9590
9591 return 0;
9592}
9593
9594static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9595{
9596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9597 struct wireless_dev *wdev = info->user_ptr[1];
9598
9599 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9600 return -EOPNOTSUPP;
9601
9602 if (!rdev->ops->stop_p2p_device)
9603 return -EOPNOTSUPP;
9604
f9f47529 9605 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9606
9607 return 0;
9608}
9609
3713b4e3
JB		 9610static int nl80211_get_protocol_features(struct sk_buff *skb,
9611 struct genl_info *info)
9612{
9613 void *hdr;
9614 struct sk_buff *msg;
9615
9616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9617 if (!msg)
9618 return -ENOMEM;
9619
9620 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9621 NL80211_CMD_GET_PROTOCOL_FEATURES);
9622 if (!hdr)
9623 goto nla_put_failure;
9624
9625 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9626 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9627 goto nla_put_failure;
9628
9629 genlmsg_end(msg, hdr);
9630 return genlmsg_reply(msg, info);
9631
9632 nla_put_failure:
9633 kfree_skb(msg);
9634 return -ENOBUFS;
9635}
9636
355199e0
JM		 9637static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9638{
9639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9640 struct cfg80211_update_ft_ies_params ft_params;
9641 struct net_device *dev = info->user_ptr[1];
9642
9643 if (!rdev->ops->update_ft_ies)
9644 return -EOPNOTSUPP;
9645
9646 if (!info->attrs[NL80211_ATTR_MDID] ||
9647 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9648 return -EINVAL;
9649
9650 memset(&ft_params, 0, sizeof(ft_params));
9651 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9652 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9653 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9654
9655 return rdev_update_ft_ies(rdev, dev, &ft_params);
9656}
9657
5de17984
AS		 9658static int nl80211_crit_protocol_start(struct sk_buff *skb,
9659 struct genl_info *info)
9660{
9661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9662 struct wireless_dev *wdev = info->user_ptr[1];
9663 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9664 u16 duration;
9665 int ret;
9666
9667 if (!rdev->ops->crit_proto_start)
9668 return -EOPNOTSUPP;
9669
9670 if (WARN_ON(!rdev->ops->crit_proto_stop))
9671 return -EINVAL;
9672
9673 if (rdev->crit_proto_nlportid)
9674 return -EBUSY;
9675
9676 /* determine protocol if provided */
9677 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9678 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9679
9680 if (proto >= NUM_NL80211_CRIT_PROTO)
9681 return -EINVAL;
9682
9683 /* timeout must be provided */
9684 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9685 return -EINVAL;
9686
9687 duration =
9688 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9689
9690 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9691 return -ERANGE;
9692
9693 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9694 if (!ret)
9695 rdev->crit_proto_nlportid = info->snd_portid;
9696
9697 return ret;
9698}
9699
9700static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9701 struct genl_info *info)
9702{
9703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9704 struct wireless_dev *wdev = info->user_ptr[1];
9705
9706 if (!rdev->ops->crit_proto_stop)
9707 return -EOPNOTSUPP;
9708
9709 if (rdev->crit_proto_nlportid) {
9710 rdev->crit_proto_nlportid = 0;
9711 rdev_crit_proto_stop(rdev, wdev);
9712 }
9713 return 0;
9714}
9715
ad7e718c
JB		 9716static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9717{
9718 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9719 struct wireless_dev *wdev =
9720 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9721 int i, err;
9722 u32 vid, subcmd;
9723
9724 if (!rdev->wiphy.vendor_commands)
9725 return -EOPNOTSUPP;
9726
9727 if (IS_ERR(wdev)) {
9728 err = PTR_ERR(wdev);
9729 if (err != -EINVAL)
9730 return err;
9731 wdev = NULL;
9732 } else if (wdev->wiphy != &rdev->wiphy) {
9733 return -EINVAL;
9734 }
9735
9736 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9737 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9738 return -EINVAL;
9739
9740 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9741 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9742 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9743 const struct wiphy_vendor_command *vcmd;
9744 void *data = NULL;
9745 int len = 0;
9746
9747 vcmd = &rdev->wiphy.vendor_commands[i];
9748
9749 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9750 continue;
9751
9752 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9753 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9754 if (!wdev)
9755 return -EINVAL;
9756 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9757 !wdev->netdev)
9758 return -EINVAL;
9759
9760 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9761 if (wdev->netdev &&
9762 !netif_running(wdev->netdev))
9763 return -ENETDOWN;
9764 if (!wdev->netdev && !wdev->p2p_started)
9765 return -ENETDOWN;
9766 }
9767 } else {
9768 wdev = NULL;
9769 }
9770
9771 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9772 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9773 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9774 }
9775
9776 rdev->cur_cmd_info = info;
9777 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9778 data, len);
9779 rdev->cur_cmd_info = NULL;
9780 return err;
9781 }
9782
9783 return -EOPNOTSUPP;
9784}
9785
9786struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9787 enum nl80211_commands cmd,
9788 enum nl80211_attrs attr,
9789 int approxlen)
9790{
f26cbf40 9791 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9792
9793 if (WARN_ON(!rdev->cur_cmd_info))
9794 return NULL;
9795
9796 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9797 rdev->cur_cmd_info->snd_portid,
9798 rdev->cur_cmd_info->snd_seq,
567ffc35 9799 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9800}
9801EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9802
9803int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9804{
9805 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9806 void *hdr = ((void **)skb->cb)[1];
9807 struct nlattr *data = ((void **)skb->cb)[2];
9808
bd8c78e7
JB		 9809 /* clear CB data for netlink core to own from now on */
9810 memset(skb->cb, 0, sizeof(skb->cb));
9811
ad7e718c
JB		 9812 if (WARN_ON(!rdev->cur_cmd_info)) {
9813 kfree_skb(skb);
9814 return -EINVAL;
9815 }
9816
9817 nla_nest_end(skb, data);
9818 genlmsg_end(skb, hdr);
9819 return genlmsg_reply(skb, rdev->cur_cmd_info);
9820}
9821EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9822
9823
fa9ffc74
KP		 9824static int nl80211_set_qos_map(struct sk_buff *skb,
9825 struct genl_info *info)
9826{
9827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9828 struct cfg80211_qos_map *qos_map = NULL;
9829 struct net_device *dev = info->user_ptr[1];
9830 u8 *pos, len, num_des, des_len, des;
9831 int ret;
9832
9833 if (!rdev->ops->set_qos_map)
9834 return -EOPNOTSUPP;
9835
9836 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9837 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9838 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9839
9840 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9841 len > IEEE80211_QOS_MAP_LEN_MAX)
9842 return -EINVAL;
9843
9844 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9845 if (!qos_map)
9846 return -ENOMEM;
9847
9848 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9849 if (num_des) {
9850 des_len = num_des *
9851 sizeof(struct cfg80211_dscp_exception);
9852 memcpy(qos_map->dscp_exception, pos, des_len);
9853 qos_map->num_des = num_des;
9854 for (des = 0; des < num_des; des++) {
9855 if (qos_map->dscp_exception[des].up > 7) {
9856 kfree(qos_map);
9857 return -EINVAL;
9858 }
9859 }
9860 pos += des_len;
9861 }
9862 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9863 }
9864
9865 wdev_lock(dev->ieee80211_ptr);
9866 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9867 if (!ret)
9868 ret = rdev_set_qos_map(rdev, dev, qos_map);
9869 wdev_unlock(dev->ieee80211_ptr);
9870
9871 kfree(qos_map);
9872 return ret;
9873}
9874
960d01ac
JB		 9875static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9876{
9877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9878 struct net_device *dev = info->user_ptr[1];
9879 struct wireless_dev *wdev = dev->ieee80211_ptr;
9880 const u8 *peer;
9881 u8 tsid, up;
9882 u16 admitted_time = 0;
9883 int err;
9884
723e73ac 9885 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9886 return -EOPNOTSUPP;
9887
9888 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9889 !info->attrs[NL80211_ATTR_USER_PRIO])
9890 return -EINVAL;
9891
9892 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9893 if (tsid >= IEEE80211_NUM_TIDS)
9894 return -EINVAL;
9895
9896 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9897 if (up >= IEEE80211_NUM_UPS)
9898 return -EINVAL;
9899
9900 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9901 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9902 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9903 * need more attributes for that (e.g. BA session requirement);
9904 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9905 */
9906 return -EINVAL;
9907 }
9908
9909 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9910
9911 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9912 admitted_time =
9913 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9914 if (!admitted_time)
9915 return -EINVAL;
9916 }
9917
9918 wdev_lock(wdev);
9919 switch (wdev->iftype) {
9920 case NL80211_IFTYPE_STATION:
9921 case NL80211_IFTYPE_P2P_CLIENT:
9922 if (wdev->current_bss)
9923 break;
9924 err = -ENOTCONN;
9925 goto out;
9926 default:
9927 err = -EOPNOTSUPP;
9928 goto out;
9929 }
9930
9931 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9932
9933 out:
9934 wdev_unlock(wdev);
9935 return err;
9936}
9937
9938static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9939{
9940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9941 struct net_device *dev = info->user_ptr[1];
9942 struct wireless_dev *wdev = dev->ieee80211_ptr;
9943 const u8 *peer;
9944 u8 tsid;
9945 int err;
9946
9947 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9948 return -EINVAL;
9949
9950 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9951 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9952
9953 wdev_lock(wdev);
9954 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9955 wdev_unlock(wdev);
9956
9957 return err;
9958}
9959
1057d35e
AN		 9960static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9961 struct genl_info *info)
9962{
9963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9964 struct net_device *dev = info->user_ptr[1];
9965 struct wireless_dev *wdev = dev->ieee80211_ptr;
9966 struct cfg80211_chan_def chandef = {};
9967 const u8 *addr;
9968 u8 oper_class;
9969 int err;
9970
9971 if (!rdev->ops->tdls_channel_switch ||
9972 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9973 return -EOPNOTSUPP;
9974
9975 switch (dev->ieee80211_ptr->iftype) {
9976 case NL80211_IFTYPE_STATION:
9977 case NL80211_IFTYPE_P2P_CLIENT:
9978 break;
9979 default:
9980 return -EOPNOTSUPP;
9981 }
9982
9983 if (!info->attrs[NL80211_ATTR_MAC] ||
9984 !info->attrs[NL80211_ATTR_OPER_CLASS])
9985 return -EINVAL;
9986
9987 err = nl80211_parse_chandef(rdev, info, &chandef);
9988 if (err)
9989 return err;
9990
9991 /*
9992 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9993 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9994 * specification is not defined for them.
9995 */
9996 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
9997 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
9998 chandef.width != NL80211_CHAN_WIDTH_20)
9999 return -EINVAL;
10000
10001 /* we will be active on the TDLS link */
10002 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
10003 return -EINVAL;
10004
10005 /* don't allow switching to DFS channels */
10006 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10007 return -EINVAL;
10008
10009 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10010 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10011
10012 wdev_lock(wdev);
10013 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10014 wdev_unlock(wdev);
10015
10016 return err;
10017}
10018
10019static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10020 struct genl_info *info)
10021{
10022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10023 struct net_device *dev = info->user_ptr[1];
10024 struct wireless_dev *wdev = dev->ieee80211_ptr;
10025 const u8 *addr;
10026
10027 if (!rdev->ops->tdls_channel_switch ||
10028 !rdev->ops->tdls_cancel_channel_switch ||
10029 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10030 return -EOPNOTSUPP;
10031
10032 switch (dev->ieee80211_ptr->iftype) {
10033 case NL80211_IFTYPE_STATION:
10034 case NL80211_IFTYPE_P2P_CLIENT:
10035 break;
10036 default:
10037 return -EOPNOTSUPP;
10038 }
10039
10040 if (!info->attrs[NL80211_ATTR_MAC])
10041 return -EINVAL;
10042
10043 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10044
10045 wdev_lock(wdev);
10046 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10047 wdev_unlock(wdev);
10048
10049 return 0;
10050}
10051
4c476991
JB		 10052#define NL80211_FLAG_NEED_WIPHY 0x01
10053#define NL80211_FLAG_NEED_NETDEV 0x02
10054#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10055#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10056#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10057 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10058#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10059/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10060#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10061 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10062#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10063
f84f771d 10064static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10065 struct genl_info *info)
10066{
10067 struct cfg80211_registered_device *rdev;
89a54e48 10068 struct wireless_dev *wdev;
4c476991 10069 struct net_device *dev;
4c476991
JB		 10070 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10071
10072 if (rtnl)
10073 rtnl_lock();
10074
10075 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10076 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10077 if (IS_ERR(rdev)) {
10078 if (rtnl)
10079 rtnl_unlock();
10080 return PTR_ERR(rdev);
10081 }
10082 info->user_ptr[0] = rdev;
1bf614ef
JB		 10083 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10084 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10085 ASSERT_RTNL();
10086
89a54e48
JB		 10087 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10088 info->attrs);
10089 if (IS_ERR(wdev)) {
4c476991
JB		 10090 if (rtnl)
10091 rtnl_unlock();
89a54e48 10092 return PTR_ERR(wdev);
4c476991 10093 }
89a54e48 10094
89a54e48 10095 dev = wdev->netdev;
f26cbf40 10096 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10097
1bf614ef
JB		 10098 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10099 if (!dev) {
1bf614ef
JB		 10100 if (rtnl)
10101 rtnl_unlock();
10102 return -EINVAL;
10103 }
10104
10105 info->user_ptr[1] = dev;
10106 } else {
10107 info->user_ptr[1] = wdev;
41265714 10108 }
1bf614ef
JB		 10109
10110 if (dev) {
10111 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10112 !netif_running(dev)) {
1bf614ef
JB		 10113 if (rtnl)
10114 rtnl_unlock();
10115 return -ENETDOWN;
10116 }
10117
10118 dev_hold(dev);
98104fde
JB		 10119 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10120 if (!wdev->p2p_started) {
98104fde
JB		 10121 if (rtnl)
10122 rtnl_unlock();
10123 return -ENETDOWN;
10124 }
41265714 10125 }
89a54e48 10126
4c476991 10127 info->user_ptr[0] = rdev;
4c476991
JB		 10128 }
10129
10130 return 0;
10131}
10132
f84f771d 10133static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10134 struct genl_info *info)
10135{
1bf614ef
JB		 10136 if (info->user_ptr[1]) {
10137 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10138 struct wireless_dev *wdev = info->user_ptr[1];
10139
10140 if (wdev->netdev)
10141 dev_put(wdev->netdev);
10142 } else {
10143 dev_put(info->user_ptr[1]);
10144 }
10145 }
5393b917 10146
4c476991
JB		 10147 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10148 rtnl_unlock();
5393b917
JB		 10149
10150 /* If needed, clear the netlink message payload from the SKB
10151 * as it might contain key data that shouldn't stick around on
10152 * the heap after the SKB is freed. The netlink message header
10153 * is still needed for further processing, so leave it intact.
10154 */
10155 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10156 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10157
10158 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10159 }
4c476991
JB		 10160}
10161
4534de83 10162static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10163 {
10164 .cmd = NL80211_CMD_GET_WIPHY,
10165 .doit = nl80211_get_wiphy,
10166 .dumpit = nl80211_dump_wiphy,
86e8cf98 10167 .done = nl80211_dump_wiphy_done,
55682965
JB		 10168 .policy = nl80211_policy,
10169 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10170 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10171 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10172 },
10173 {
10174 .cmd = NL80211_CMD_SET_WIPHY,
10175 .doit = nl80211_set_wiphy,
10176 .policy = nl80211_policy,
10177 .flags = GENL_ADMIN_PERM,
4c476991 10178 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10179 },
10180 {
10181 .cmd = NL80211_CMD_GET_INTERFACE,
10182 .doit = nl80211_get_interface,
10183 .dumpit = nl80211_dump_interface,
10184 .policy = nl80211_policy,
10185 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10186 .internal_flags = NL80211_FLAG_NEED_WDEV |
10187 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10188 },
10189 {
10190 .cmd = NL80211_CMD_SET_INTERFACE,
10191 .doit = nl80211_set_interface,
10192 .policy = nl80211_policy,
10193 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10195 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10196 },
10197 {
10198 .cmd = NL80211_CMD_NEW_INTERFACE,
10199 .doit = nl80211_new_interface,
10200 .policy = nl80211_policy,
10201 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10202 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10203 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10204 },
10205 {
10206 .cmd = NL80211_CMD_DEL_INTERFACE,
10207 .doit = nl80211_del_interface,
10208 .policy = nl80211_policy,
41ade00f 10209 .flags = GENL_ADMIN_PERM,
84efbb84 10210 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10211 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10212 },
10213 {
10214 .cmd = NL80211_CMD_GET_KEY,
10215 .doit = nl80211_get_key,
10216 .policy = nl80211_policy,
10217 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10219 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10220 },
10221 {
10222 .cmd = NL80211_CMD_SET_KEY,
10223 .doit = nl80211_set_key,
10224 .policy = nl80211_policy,
10225 .flags = GENL_ADMIN_PERM,
41265714 10226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10227 NL80211_FLAG_NEED_RTNL |
10228 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10229 },
10230 {
10231 .cmd = NL80211_CMD_NEW_KEY,
10232 .doit = nl80211_new_key,
10233 .policy = nl80211_policy,
10234 .flags = GENL_ADMIN_PERM,
41265714 10235 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10236 NL80211_FLAG_NEED_RTNL |
10237 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10238 },
10239 {
10240 .cmd = NL80211_CMD_DEL_KEY,
10241 .doit = nl80211_del_key,
10242 .policy = nl80211_policy,
55682965 10243 .flags = GENL_ADMIN_PERM,
41265714 10244 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10245 NL80211_FLAG_NEED_RTNL,
55682965 10246 },
ed1b6cc7
JB		 10247 {
10248 .cmd = NL80211_CMD_SET_BEACON,
10249 .policy = nl80211_policy,
10250 .flags = GENL_ADMIN_PERM,
8860020e 10251 .doit = nl80211_set_beacon,
2b5f8b0b 10252 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10253 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10254 },
10255 {
8860020e 10256 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10257 .policy = nl80211_policy,
10258 .flags = GENL_ADMIN_PERM,
8860020e 10259 .doit = nl80211_start_ap,
2b5f8b0b 10260 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10261 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10262 },
10263 {
8860020e 10264 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10265 .policy = nl80211_policy,
10266 .flags = GENL_ADMIN_PERM,
8860020e 10267 .doit = nl80211_stop_ap,
2b5f8b0b 10268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10269 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10270 },
5727ef1b
JB		 10271 {
10272 .cmd = NL80211_CMD_GET_STATION,
10273 .doit = nl80211_get_station,
2ec600d6 10274 .dumpit = nl80211_dump_station,
5727ef1b 10275 .policy = nl80211_policy,
4c476991
JB		 10276 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10277 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10278 },
10279 {
10280 .cmd = NL80211_CMD_SET_STATION,
10281 .doit = nl80211_set_station,
10282 .policy = nl80211_policy,
10283 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10284 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10285 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10286 },
10287 {
10288 .cmd = NL80211_CMD_NEW_STATION,
10289 .doit = nl80211_new_station,
10290 .policy = nl80211_policy,
10291 .flags = GENL_ADMIN_PERM,
41265714 10292 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10293 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10294 },
10295 {
10296 .cmd = NL80211_CMD_DEL_STATION,
10297 .doit = nl80211_del_station,
10298 .policy = nl80211_policy,
2ec600d6 10299 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10300 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10301 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10302 },
10303 {
10304 .cmd = NL80211_CMD_GET_MPATH,
10305 .doit = nl80211_get_mpath,
10306 .dumpit = nl80211_dump_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 10311 },
66be7d2b
HR		 10312 {
10313 .cmd = NL80211_CMD_GET_MPP,
10314 .doit = nl80211_get_mpp,
10315 .dumpit = nl80211_dump_mpp,
10316 .policy = nl80211_policy,
10317 .flags = GENL_ADMIN_PERM,
10318 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10319 NL80211_FLAG_NEED_RTNL,
10320 },
2ec600d6
LCC		 10321 {
10322 .cmd = NL80211_CMD_SET_MPATH,
10323 .doit = nl80211_set_mpath,
10324 .policy = nl80211_policy,
10325 .flags = GENL_ADMIN_PERM,
41265714 10326 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10327 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10328 },
10329 {
10330 .cmd = NL80211_CMD_NEW_MPATH,
10331 .doit = nl80211_new_mpath,
10332 .policy = nl80211_policy,
10333 .flags = GENL_ADMIN_PERM,
41265714 10334 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10335 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10336 },
10337 {
10338 .cmd = NL80211_CMD_DEL_MPATH,
10339 .doit = nl80211_del_mpath,
10340 .policy = nl80211_policy,
9f1ba906 10341 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10342 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10343 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10344 },
10345 {
10346 .cmd = NL80211_CMD_SET_BSS,
10347 .doit = nl80211_set_bss,
10348 .policy = nl80211_policy,
b2e1b302 10349 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10350 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10351 NL80211_FLAG_NEED_RTNL,
b2e1b302 10352 },
f130347c
LR		 10353 {
10354 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10355 .doit = nl80211_get_reg_do,
10356 .dumpit = nl80211_get_reg_dump,
f130347c 10357 .policy = nl80211_policy,
5fe231e8 10358 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10359 /* can be retrieved by unprivileged users */
10360 },
b2e1b302
LR		 10361 {
10362 .cmd = NL80211_CMD_SET_REG,
10363 .doit = nl80211_set_reg,
10364 .policy = nl80211_policy,
10365 .flags = GENL_ADMIN_PERM,
5fe231e8 10366 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10367 },
10368 {
10369 .cmd = NL80211_CMD_REQ_SET_REG,
10370 .doit = nl80211_req_set_reg,
10371 .policy = nl80211_policy,
93da9cc1 10372 .flags = GENL_ADMIN_PERM,
10373 },
10374 {
24bdd9f4
JC		 10375 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10376 .doit = nl80211_get_mesh_config,
93da9cc1 10377 .policy = nl80211_policy,
10378 /* can be retrieved by unprivileged users */
2b5f8b0b 10379 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10380 NL80211_FLAG_NEED_RTNL,
93da9cc1 10381 },
10382 {
24bdd9f4
JC		 10383 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10384 .doit = nl80211_update_mesh_config,
93da9cc1 10385 .policy = nl80211_policy,
9aed3cc1 10386 .flags = GENL_ADMIN_PERM,
29cbe68c 10387 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10388 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10389 },
2a519311
JB		 10390 {
10391 .cmd = NL80211_CMD_TRIGGER_SCAN,
10392 .doit = nl80211_trigger_scan,
10393 .policy = nl80211_policy,
10394 .flags = GENL_ADMIN_PERM,
fd014284 10395 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10396 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10397 },
10398 {
10399 .cmd = NL80211_CMD_GET_SCAN,
10400 .policy = nl80211_policy,
10401 .dumpit = nl80211_dump_scan,
10402 },
807f8a8c
LC		 10403 {
10404 .cmd = NL80211_CMD_START_SCHED_SCAN,
10405 .doit = nl80211_start_sched_scan,
10406 .policy = nl80211_policy,
10407 .flags = GENL_ADMIN_PERM,
10408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10409 NL80211_FLAG_NEED_RTNL,
10410 },
10411 {
10412 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10413 .doit = nl80211_stop_sched_scan,
10414 .policy = nl80211_policy,
10415 .flags = GENL_ADMIN_PERM,
10416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10417 NL80211_FLAG_NEED_RTNL,
10418 },
636a5d36
JM		 10419 {
10420 .cmd = NL80211_CMD_AUTHENTICATE,
10421 .doit = nl80211_authenticate,
10422 .policy = nl80211_policy,
10423 .flags = GENL_ADMIN_PERM,
41265714 10424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10425 NL80211_FLAG_NEED_RTNL |
10426 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10427 },
10428 {
10429 .cmd = NL80211_CMD_ASSOCIATE,
10430 .doit = nl80211_associate,
10431 .policy = nl80211_policy,
10432 .flags = GENL_ADMIN_PERM,
41265714 10433 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10434 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10435 },
10436 {
10437 .cmd = NL80211_CMD_DEAUTHENTICATE,
10438 .doit = nl80211_deauthenticate,
10439 .policy = nl80211_policy,
10440 .flags = GENL_ADMIN_PERM,
41265714 10441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10442 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10443 },
10444 {
10445 .cmd = NL80211_CMD_DISASSOCIATE,
10446 .doit = nl80211_disassociate,
10447 .policy = nl80211_policy,
10448 .flags = GENL_ADMIN_PERM,
41265714 10449 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10450 NL80211_FLAG_NEED_RTNL,
636a5d36 10451 },
04a773ad
JB		 10452 {
10453 .cmd = NL80211_CMD_JOIN_IBSS,
10454 .doit = nl80211_join_ibss,
10455 .policy = nl80211_policy,
10456 .flags = GENL_ADMIN_PERM,
41265714 10457 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10458 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10459 },
10460 {
10461 .cmd = NL80211_CMD_LEAVE_IBSS,
10462 .doit = nl80211_leave_ibss,
10463 .policy = nl80211_policy,
10464 .flags = GENL_ADMIN_PERM,
41265714 10465 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10466 NL80211_FLAG_NEED_RTNL,
04a773ad 10467 },
aff89a9b
JB		 10468#ifdef CONFIG_NL80211_TESTMODE
10469 {
10470 .cmd = NL80211_CMD_TESTMODE,
10471 .doit = nl80211_testmode_do,
71063f0e 10472 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10473 .policy = nl80211_policy,
10474 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10475 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10476 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10477 },
10478#endif
b23aa676
SO		 10479 {
10480 .cmd = NL80211_CMD_CONNECT,
10481 .doit = nl80211_connect,
10482 .policy = nl80211_policy,
10483 .flags = GENL_ADMIN_PERM,
41265714 10484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10485 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10486 },
10487 {
10488 .cmd = NL80211_CMD_DISCONNECT,
10489 .doit = nl80211_disconnect,
10490 .policy = nl80211_policy,
10491 .flags = GENL_ADMIN_PERM,
41265714 10492 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10493 NL80211_FLAG_NEED_RTNL,
b23aa676 10494 },
463d0183
JB		 10495 {
10496 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10497 .doit = nl80211_wiphy_netns,
10498 .policy = nl80211_policy,
10499 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10500 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10501 NL80211_FLAG_NEED_RTNL,
463d0183 10502 },
61fa713c
HS		 10503 {
10504 .cmd = NL80211_CMD_GET_SURVEY,
10505 .policy = nl80211_policy,
10506 .dumpit = nl80211_dump_survey,
10507 },
67fbb16b
SO		 10508 {
10509 .cmd = NL80211_CMD_SET_PMKSA,
10510 .doit = nl80211_setdel_pmksa,
10511 .policy = nl80211_policy,
10512 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10514 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10515 },
10516 {
10517 .cmd = NL80211_CMD_DEL_PMKSA,
10518 .doit = nl80211_setdel_pmksa,
10519 .policy = nl80211_policy,
10520 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10522 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10523 },
10524 {
10525 .cmd = NL80211_CMD_FLUSH_PMKSA,
10526 .doit = nl80211_flush_pmksa,
10527 .policy = nl80211_policy,
10528 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10530 NL80211_FLAG_NEED_RTNL,
67fbb16b 10531 },
9588bbd5
JM		 10532 {
10533 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10534 .doit = nl80211_remain_on_channel,
10535 .policy = nl80211_policy,
10536 .flags = GENL_ADMIN_PERM,
71bbc994 10537 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10538 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10539 },
10540 {
10541 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10542 .doit = nl80211_cancel_remain_on_channel,
10543 .policy = nl80211_policy,
10544 .flags = GENL_ADMIN_PERM,
71bbc994 10545 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10546 NL80211_FLAG_NEED_RTNL,
9588bbd5 10547 },
13ae75b1
JM		 10548 {
10549 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10550 .doit = nl80211_set_tx_bitrate_mask,
10551 .policy = nl80211_policy,
10552 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10553 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10554 NL80211_FLAG_NEED_RTNL,
13ae75b1 10555 },
026331c4 10556 {
2e161f78
JB		 10557 .cmd = NL80211_CMD_REGISTER_FRAME,
10558 .doit = nl80211_register_mgmt,
026331c4
JM		 10559 .policy = nl80211_policy,
10560 .flags = GENL_ADMIN_PERM,
71bbc994 10561 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10562 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10563 },
10564 {
2e161f78
JB		 10565 .cmd = NL80211_CMD_FRAME,
10566 .doit = nl80211_tx_mgmt,
026331c4 10567 .policy = nl80211_policy,
f7ca38df 10568 .flags = GENL_ADMIN_PERM,
71bbc994 10569 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10570 NL80211_FLAG_NEED_RTNL,
10571 },
10572 {
10573 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10574 .doit = nl80211_tx_mgmt_cancel_wait,
10575 .policy = nl80211_policy,
026331c4 10576 .flags = GENL_ADMIN_PERM,
71bbc994 10577 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10578 NL80211_FLAG_NEED_RTNL,
026331c4 10579 },
ffb9eb3d
KV		 10580 {
10581 .cmd = NL80211_CMD_SET_POWER_SAVE,
10582 .doit = nl80211_set_power_save,
10583 .policy = nl80211_policy,
10584 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10585 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10586 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10587 },
10588 {
10589 .cmd = NL80211_CMD_GET_POWER_SAVE,
10590 .doit = nl80211_get_power_save,
10591 .policy = nl80211_policy,
10592 /* can be retrieved by unprivileged users */
4c476991
JB		 10593 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10594 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10595 },
d6dc1a38
JO		 10596 {
10597 .cmd = NL80211_CMD_SET_CQM,
10598 .doit = nl80211_set_cqm,
10599 .policy = nl80211_policy,
10600 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10601 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10602 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10603 },
f444de05
JB		 10604 {
10605 .cmd = NL80211_CMD_SET_CHANNEL,
10606 .doit = nl80211_set_channel,
10607 .policy = nl80211_policy,
10608 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10609 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10610 NL80211_FLAG_NEED_RTNL,
f444de05 10611 },
e8347eba
BJ		 10612 {
10613 .cmd = NL80211_CMD_SET_WDS_PEER,
10614 .doit = nl80211_set_wds_peer,
10615 .policy = nl80211_policy,
10616 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10617 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10618 NL80211_FLAG_NEED_RTNL,
e8347eba 10619 },
29cbe68c
JB		 10620 {
10621 .cmd = NL80211_CMD_JOIN_MESH,
10622 .doit = nl80211_join_mesh,
10623 .policy = nl80211_policy,
10624 .flags = GENL_ADMIN_PERM,
10625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10626 NL80211_FLAG_NEED_RTNL,
10627 },
10628 {
10629 .cmd = NL80211_CMD_LEAVE_MESH,
10630 .doit = nl80211_leave_mesh,
10631 .policy = nl80211_policy,
10632 .flags = GENL_ADMIN_PERM,
10633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10634 NL80211_FLAG_NEED_RTNL,
10635 },
6e0bd6c3
RL		 10636 {
10637 .cmd = NL80211_CMD_JOIN_OCB,
10638 .doit = nl80211_join_ocb,
10639 .policy = nl80211_policy,
10640 .flags = GENL_ADMIN_PERM,
10641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10642 NL80211_FLAG_NEED_RTNL,
10643 },
10644 {
10645 .cmd = NL80211_CMD_LEAVE_OCB,
10646 .doit = nl80211_leave_ocb,
10647 .policy = nl80211_policy,
10648 .flags = GENL_ADMIN_PERM,
10649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10650 NL80211_FLAG_NEED_RTNL,
10651 },
dfb89c56 10652#ifdef CONFIG_PM
ff1b6e69
JB		 10653 {
10654 .cmd = NL80211_CMD_GET_WOWLAN,
10655 .doit = nl80211_get_wowlan,
10656 .policy = nl80211_policy,
10657 /* can be retrieved by unprivileged users */
10658 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10659 NL80211_FLAG_NEED_RTNL,
10660 },
10661 {
10662 .cmd = NL80211_CMD_SET_WOWLAN,
10663 .doit = nl80211_set_wowlan,
10664 .policy = nl80211_policy,
10665 .flags = GENL_ADMIN_PERM,
10666 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10667 NL80211_FLAG_NEED_RTNL,
10668 },
dfb89c56 10669#endif
e5497d76
JB		 10670 {
10671 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10672 .doit = nl80211_set_rekey_data,
10673 .policy = nl80211_policy,
10674 .flags = GENL_ADMIN_PERM,
10675 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10676 NL80211_FLAG_NEED_RTNL |
10677 NL80211_FLAG_CLEAR_SKB,
e5497d76 10678 },
109086ce
AN		 10679 {
10680 .cmd = NL80211_CMD_TDLS_MGMT,
10681 .doit = nl80211_tdls_mgmt,
10682 .policy = nl80211_policy,
10683 .flags = GENL_ADMIN_PERM,
10684 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10685 NL80211_FLAG_NEED_RTNL,
10686 },
10687 {
10688 .cmd = NL80211_CMD_TDLS_OPER,
10689 .doit = nl80211_tdls_oper,
10690 .policy = nl80211_policy,
10691 .flags = GENL_ADMIN_PERM,
10692 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10693 NL80211_FLAG_NEED_RTNL,
10694 },
28946da7
JB		 10695 {
10696 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10697 .doit = nl80211_register_unexpected_frame,
10698 .policy = nl80211_policy,
10699 .flags = GENL_ADMIN_PERM,
10700 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10701 NL80211_FLAG_NEED_RTNL,
10702 },
7f6cf311
JB		 10703 {
10704 .cmd = NL80211_CMD_PROBE_CLIENT,
10705 .doit = nl80211_probe_client,
10706 .policy = nl80211_policy,
10707 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10708 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10709 NL80211_FLAG_NEED_RTNL,
10710 },
5e760230
JB		 10711 {
10712 .cmd = NL80211_CMD_REGISTER_BEACONS,
10713 .doit = nl80211_register_beacons,
10714 .policy = nl80211_policy,
10715 .flags = GENL_ADMIN_PERM,
10716 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10717 NL80211_FLAG_NEED_RTNL,
10718 },
1d9d9213
SW		 10719 {
10720 .cmd = NL80211_CMD_SET_NOACK_MAP,
10721 .doit = nl80211_set_noack_map,
10722 .policy = nl80211_policy,
10723 .flags = GENL_ADMIN_PERM,
10724 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10725 NL80211_FLAG_NEED_RTNL,
10726 },
98104fde
JB		 10727 {
10728 .cmd = NL80211_CMD_START_P2P_DEVICE,
10729 .doit = nl80211_start_p2p_device,
10730 .policy = nl80211_policy,
10731 .flags = GENL_ADMIN_PERM,
10732 .internal_flags = NL80211_FLAG_NEED_WDEV |
10733 NL80211_FLAG_NEED_RTNL,
10734 },
10735 {
10736 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10737 .doit = nl80211_stop_p2p_device,
10738 .policy = nl80211_policy,
10739 .flags = GENL_ADMIN_PERM,
10740 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10741 NL80211_FLAG_NEED_RTNL,
10742 },
f4e583c8
AQ		 10743 {
10744 .cmd = NL80211_CMD_SET_MCAST_RATE,
10745 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10746 .policy = nl80211_policy,
10747 .flags = GENL_ADMIN_PERM,
10748 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10749 NL80211_FLAG_NEED_RTNL,
10750 },
10751 {
10752 .cmd = NL80211_CMD_SET_MAC_ACL,
10753 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10754 .policy = nl80211_policy,
10755 .flags = GENL_ADMIN_PERM,
10756 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10757 NL80211_FLAG_NEED_RTNL,
10758 },
04f39047
SW		 10759 {
10760 .cmd = NL80211_CMD_RADAR_DETECT,
10761 .doit = nl80211_start_radar_detection,
10762 .policy = nl80211_policy,
10763 .flags = GENL_ADMIN_PERM,
10764 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10765 NL80211_FLAG_NEED_RTNL,
10766 },
3713b4e3
JB		 10767 {
10768 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10769 .doit = nl80211_get_protocol_features,
10770 .policy = nl80211_policy,
10771 },
355199e0
JM		 10772 {
10773 .cmd = NL80211_CMD_UPDATE_FT_IES,
10774 .doit = nl80211_update_ft_ies,
10775 .policy = nl80211_policy,
10776 .flags = GENL_ADMIN_PERM,
10777 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10778 NL80211_FLAG_NEED_RTNL,
10779 },
5de17984
AS		 10780 {
10781 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10782 .doit = nl80211_crit_protocol_start,
10783 .policy = nl80211_policy,
10784 .flags = GENL_ADMIN_PERM,
10785 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10786 NL80211_FLAG_NEED_RTNL,
10787 },
10788 {
10789 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10790 .doit = nl80211_crit_protocol_stop,
10791 .policy = nl80211_policy,
10792 .flags = GENL_ADMIN_PERM,
10793 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10794 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10795 },
10796 {
10797 .cmd = NL80211_CMD_GET_COALESCE,
10798 .doit = nl80211_get_coalesce,
10799 .policy = nl80211_policy,
10800 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10801 NL80211_FLAG_NEED_RTNL,
10802 },
10803 {
10804 .cmd = NL80211_CMD_SET_COALESCE,
10805 .doit = nl80211_set_coalesce,
10806 .policy = nl80211_policy,
10807 .flags = GENL_ADMIN_PERM,
10808 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10809 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10810 },
10811 {
10812 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10813 .doit = nl80211_channel_switch,
10814 .policy = nl80211_policy,
10815 .flags = GENL_ADMIN_PERM,
10816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10817 NL80211_FLAG_NEED_RTNL,
10818 },
ad7e718c
JB		 10819 {
10820 .cmd = NL80211_CMD_VENDOR,
10821 .doit = nl80211_vendor_cmd,
10822 .policy = nl80211_policy,
10823 .flags = GENL_ADMIN_PERM,
10824 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10825 NL80211_FLAG_NEED_RTNL,
10826 },
fa9ffc74
KP		 10827 {
10828 .cmd = NL80211_CMD_SET_QOS_MAP,
10829 .doit = nl80211_set_qos_map,
10830 .policy = nl80211_policy,
10831 .flags = GENL_ADMIN_PERM,
10832 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10833 NL80211_FLAG_NEED_RTNL,
10834 },
960d01ac
JB		 10835 {
10836 .cmd = NL80211_CMD_ADD_TX_TS,
10837 .doit = nl80211_add_tx_ts,
10838 .policy = nl80211_policy,
10839 .flags = GENL_ADMIN_PERM,
10840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10841 NL80211_FLAG_NEED_RTNL,
10842 },
10843 {
10844 .cmd = NL80211_CMD_DEL_TX_TS,
10845 .doit = nl80211_del_tx_ts,
10846 .policy = nl80211_policy,
10847 .flags = GENL_ADMIN_PERM,
10848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10849 NL80211_FLAG_NEED_RTNL,
10850 },
1057d35e
AN		 10851 {
10852 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10853 .doit = nl80211_tdls_channel_switch,
10854 .policy = nl80211_policy,
10855 .flags = GENL_ADMIN_PERM,
10856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10857 NL80211_FLAG_NEED_RTNL,
10858 },
10859 {
10860 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10861 .doit = nl80211_tdls_cancel_channel_switch,
10862 .policy = nl80211_policy,
10863 .flags = GENL_ADMIN_PERM,
10864 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10865 NL80211_FLAG_NEED_RTNL,
10866 },
55682965 10867};
9588bbd5 10868
55682965
JB		 10869/* notification functions */
10870
3bb20556
JB		 10871void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10872 enum nl80211_commands cmd)
55682965
JB		 10873{
10874 struct sk_buff *msg;
86e8cf98 10875 struct nl80211_dump_wiphy_state state = {};
55682965 10876
3bb20556
JB		 10877 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10878 cmd != NL80211_CMD_DEL_WIPHY);
10879
fd2120ca 10880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10881 if (!msg)
10882 return;
10883
3bb20556 10884 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10885 nlmsg_free(msg);
10886 return;
10887 }
10888
68eb5503 10889 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10890 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10891}
10892
362a415d
JB		 10893static int nl80211_add_scan_req(struct sk_buff *msg,
10894 struct cfg80211_registered_device *rdev)
10895{
10896 struct cfg80211_scan_request *req = rdev->scan_req;
10897 struct nlattr *nest;
10898 int i;
10899
10900 if (WARN_ON(!req))
10901 return 0;
10902
10903 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10904 if (!nest)
10905 goto nla_put_failure;
9360ffd1
DM		 10906 for (i = 0; i < req->n_ssids; i++) {
10907 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10908 goto nla_put_failure;
10909 }
362a415d
JB		 10910 nla_nest_end(msg, nest);
10911
10912 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10913 if (!nest)
10914 goto nla_put_failure;
9360ffd1
DM		 10915 for (i = 0; i < req->n_channels; i++) {
10916 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10917 goto nla_put_failure;
10918 }
362a415d
JB		 10919 nla_nest_end(msg, nest);
10920
9360ffd1
DM		 10921 if (req->ie &&
10922 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10923 goto nla_put_failure;
362a415d 10924
ae917c9f
JB		 10925 if (req->flags &&
10926 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10927 goto nla_put_failure;
ed473771 10928
362a415d
JB		 10929 return 0;
10930 nla_put_failure:
10931 return -ENOBUFS;
10932}
10933
a538e2d5
JB		 10934static int nl80211_send_scan_msg(struct sk_buff *msg,
10935 struct cfg80211_registered_device *rdev,
fd014284 10936 struct wireless_dev *wdev,
15e47304 10937 u32 portid, u32 seq, int flags,
a538e2d5 10938 u32 cmd)
2a519311
JB		 10939{
10940 void *hdr;
10941
15e47304 10942 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10943 if (!hdr)
10944 return -1;
10945
9360ffd1 10946 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10947 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10948 wdev->netdev->ifindex)) ||
10949 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10950 goto nla_put_failure;
2a519311 10951
362a415d
JB		 10952 /* ignore errors and send incomplete event anyway */
10953 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10954
10955 return genlmsg_end(msg, hdr);
10956
10957 nla_put_failure:
10958 genlmsg_cancel(msg, hdr);
10959 return -EMSGSIZE;
10960}
10961
807f8a8c
LC		 10962static int
10963nl80211_send_sched_scan_msg(struct sk_buff *msg,
10964 struct cfg80211_registered_device *rdev,
10965 struct net_device *netdev,
15e47304 10966 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10967{
10968 void *hdr;
10969
15e47304 10970 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10971 if (!hdr)
10972 return -1;
10973
9360ffd1
DM		 10974 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10975 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10976 goto nla_put_failure;
807f8a8c
LC		 10977
10978 return genlmsg_end(msg, hdr);
10979
10980 nla_put_failure:
10981 genlmsg_cancel(msg, hdr);
10982 return -EMSGSIZE;
10983}
10984
a538e2d5 10985void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10986 struct wireless_dev *wdev)
a538e2d5
JB		 10987{
10988 struct sk_buff *msg;
10989
58050fce 10990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10991 if (!msg)
10992 return;
10993
fd014284 10994 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10995 NL80211_CMD_TRIGGER_SCAN) < 0) {
10996 nlmsg_free(msg);
10997 return;
10998 }
10999
68eb5503 11000 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11001 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11002}
11003
f9d15d16
JB		 11004struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11005 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11006{
11007 struct sk_buff *msg;
11008
fd2120ca 11009 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11010 if (!msg)
f9d15d16 11011 return NULL;
2a519311 11012
fd014284 11013 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11014 aborted ? NL80211_CMD_SCAN_ABORTED :
11015 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11016 nlmsg_free(msg);
f9d15d16 11017 return NULL;
2a519311
JB		 11018 }
11019
f9d15d16 11020 return msg;
2a519311
JB		 11021}
11022
f9d15d16
JB		 11023void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11024 struct sk_buff *msg)
2a519311 11025{
2a519311
JB		 11026 if (!msg)
11027 return;
11028
68eb5503 11029 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11030 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11031}
11032
807f8a8c
LC		 11033void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11034 struct net_device *netdev)
11035{
11036 struct sk_buff *msg;
11037
11038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11039 if (!msg)
11040 return;
11041
11042 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11043 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11044 nlmsg_free(msg);
11045 return;
11046 }
11047
68eb5503 11048 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11049 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11050}
11051
11052void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11053 struct net_device *netdev, u32 cmd)
11054{
11055 struct sk_buff *msg;
11056
58050fce 11057 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11058 if (!msg)
11059 return;
11060
11061 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11062 nlmsg_free(msg);
11063 return;
11064 }
11065
68eb5503 11066 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11067 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11068}
11069
b0d7aa59
JD		 11070static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11071 struct regulatory_request *request)
73d54c9e 11072{
73d54c9e 11073 /* Userspace can always count this one always being set */
9360ffd1
DM		 11074 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11075 goto nla_put_failure;
11076
11077 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11078 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11079 NL80211_REGDOM_TYPE_WORLD))
11080 goto nla_put_failure;
11081 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11082 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11083 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11084 goto nla_put_failure;
11085 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11086 request->intersect) {
11087 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11088 NL80211_REGDOM_TYPE_INTERSECTION))
11089 goto nla_put_failure;
11090 } else {
11091 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11092 NL80211_REGDOM_TYPE_COUNTRY) ||
11093 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11094 request->alpha2))
11095 goto nla_put_failure;
11096 }
11097
ad30ca2c
AN		 11098 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11099 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11100
11101 if (wiphy &&
11102 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11103 goto nla_put_failure;
1bdd716c
AN		 11104
11105 if (wiphy &&
11106 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11107 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11108 goto nla_put_failure;
ad30ca2c 11109 }
73d54c9e 11110
b0d7aa59
JD		 11111 return true;
11112
11113nla_put_failure:
11114 return false;
11115}
11116
11117/*
11118 * This can happen on global regulatory changes or device specific settings
11119 * based on custom regulatory domains.
11120 */
11121void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11122 struct regulatory_request *request)
11123{
11124 struct sk_buff *msg;
11125 void *hdr;
11126
11127 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11128 if (!msg)
11129 return;
11130
11131 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11132 if (!hdr) {
11133 nlmsg_free(msg);
11134 return;
11135 }
11136
11137 if (nl80211_reg_change_event_fill(msg, request) == false)
11138 goto nla_put_failure;
11139
3b7b72ee 11140 genlmsg_end(msg, hdr);
73d54c9e 11141
bc43b28c 11142 rcu_read_lock();
68eb5503 11143 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11144 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11145 rcu_read_unlock();
73d54c9e
LR		 11146
11147 return;
11148
11149nla_put_failure:
11150 genlmsg_cancel(msg, hdr);
11151 nlmsg_free(msg);
11152}
11153
6039f6d2
JM		 11154static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11155 struct net_device *netdev,
11156 const u8 *buf, size_t len,
b0b6aa2c
EP		 11157 enum nl80211_commands cmd, gfp_t gfp,
11158 int uapsd_queues)
6039f6d2
JM		 11159{
11160 struct sk_buff *msg;
11161 void *hdr;
11162
e6d6e342 11163 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11164 if (!msg)
11165 return;
11166
11167 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11168 if (!hdr) {
11169 nlmsg_free(msg);
11170 return;
11171 }
11172
9360ffd1
DM		 11173 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11174 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11175 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11176 goto nla_put_failure;
6039f6d2 11177
b0b6aa2c
EP		 11178 if (uapsd_queues >= 0) {
11179 struct nlattr *nla_wmm =
11180 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11181 if (!nla_wmm)
11182 goto nla_put_failure;
11183
11184 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11185 uapsd_queues))
11186 goto nla_put_failure;
11187
11188 nla_nest_end(msg, nla_wmm);
11189 }
11190
3b7b72ee 11191 genlmsg_end(msg, hdr);
6039f6d2 11192
68eb5503 11193 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11194 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11195 return;
11196
11197 nla_put_failure:
11198 genlmsg_cancel(msg, hdr);
11199 nlmsg_free(msg);
11200}
11201
11202void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11203 struct net_device *netdev, const u8 *buf,
11204 size_t len, gfp_t gfp)
6039f6d2
JM		 11205{
11206 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11207 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11208}
11209
11210void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11211 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11212 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11213{
e6d6e342 11214 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11215 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11216}
11217
53b46b84 11218void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11219 struct net_device *netdev, const u8 *buf,
11220 size_t len, gfp_t gfp)
6039f6d2
JM		 11221{
11222 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11223 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11224}
11225
53b46b84
JM		 11226void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11227 struct net_device *netdev, const u8 *buf,
e6d6e342 11228 size_t len, gfp_t gfp)
6039f6d2
JM		 11229{
11230 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11231 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11232}
11233
6ff57cf8
JB		 11234void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11235 size_t len)
cf4e594e 11236{
947add36
JB		 11237 struct wireless_dev *wdev = dev->ieee80211_ptr;
11238 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11239 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11240 const struct ieee80211_mgmt *mgmt = (void *)buf;
11241 u32 cmd;
947add36 11242
6ff57cf8
JB		 11243 if (WARN_ON(len < 2))
11244 return;
cf4e594e 11245
6ff57cf8
JB		 11246 if (ieee80211_is_deauth(mgmt->frame_control))
11247 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11248 else
11249 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11250
6ff57cf8 11251 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11252 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11253}
6ff57cf8 11254EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11255
1b06bb40
LR		 11256static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11257 struct net_device *netdev, int cmd,
e6d6e342 11258 const u8 *addr, gfp_t gfp)
1965c853
JM		 11259{
11260 struct sk_buff *msg;
11261 void *hdr;
11262
e6d6e342 11263 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11264 if (!msg)
11265 return;
11266
11267 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11268 if (!hdr) {
11269 nlmsg_free(msg);
11270 return;
11271 }
11272
9360ffd1
DM		 11273 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11274 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11275 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11276 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11277 goto nla_put_failure;
1965c853 11278
3b7b72ee 11279 genlmsg_end(msg, hdr);
1965c853 11280
68eb5503 11281 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11282 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11283 return;
11284
11285 nla_put_failure:
11286 genlmsg_cancel(msg, hdr);
11287 nlmsg_free(msg);
11288}
11289
11290void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11291 struct net_device *netdev, const u8 *addr,
11292 gfp_t gfp)
1965c853
JM		 11293{
11294 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11295 addr, gfp);
1965c853
JM		 11296}
11297
11298void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11299 struct net_device *netdev, const u8 *addr,
11300 gfp_t gfp)
1965c853 11301{
e6d6e342
JB		 11302 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11303 addr, gfp);
1965c853
JM		 11304}
11305
b23aa676
SO		 11306void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11307 struct net_device *netdev, const u8 *bssid,
11308 const u8 *req_ie, size_t req_ie_len,
11309 const u8 *resp_ie, size_t resp_ie_len,
11310 u16 status, gfp_t gfp)
11311{
11312 struct sk_buff *msg;
11313 void *hdr;
11314
58050fce 11315 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11316 if (!msg)
11317 return;
11318
11319 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11320 if (!hdr) {
11321 nlmsg_free(msg);
11322 return;
11323 }
11324
9360ffd1
DM		 11325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11326 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11327 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11328 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11329 (req_ie &&
11330 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11331 (resp_ie &&
11332 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11333 goto nla_put_failure;
b23aa676 11334
3b7b72ee 11335 genlmsg_end(msg, hdr);
b23aa676 11336
68eb5503 11337 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11338 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11339 return;
11340
11341 nla_put_failure:
11342 genlmsg_cancel(msg, hdr);
11343 nlmsg_free(msg);
11344
11345}
11346
11347void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11348 struct net_device *netdev, const u8 *bssid,
11349 const u8 *req_ie, size_t req_ie_len,
11350 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11351{
11352 struct sk_buff *msg;
11353 void *hdr;
11354
58050fce 11355 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11356 if (!msg)
11357 return;
11358
11359 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11360 if (!hdr) {
11361 nlmsg_free(msg);
11362 return;
11363 }
11364
9360ffd1
DM		 11365 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11366 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11367 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11368 (req_ie &&
11369 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11370 (resp_ie &&
11371 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11372 goto nla_put_failure;
b23aa676 11373
3b7b72ee 11374 genlmsg_end(msg, hdr);
b23aa676 11375
68eb5503 11376 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11377 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11378 return;
11379
11380 nla_put_failure:
11381 genlmsg_cancel(msg, hdr);
11382 nlmsg_free(msg);
11383
11384}
11385
11386void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11387 struct net_device *netdev, u16 reason,
667503dd 11388 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11389{
11390 struct sk_buff *msg;
11391 void *hdr;
11392
58050fce 11393 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11394 if (!msg)
11395 return;
11396
11397 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11398 if (!hdr) {
11399 nlmsg_free(msg);
11400 return;
11401 }
11402
9360ffd1
DM		 11403 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11404 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11405 (from_ap && reason &&
11406 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11407 (from_ap &&
11408 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11409 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11410 goto nla_put_failure;
b23aa676 11411
3b7b72ee 11412 genlmsg_end(msg, hdr);
b23aa676 11413
68eb5503 11414 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11415 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11416 return;
11417
11418 nla_put_failure:
11419 genlmsg_cancel(msg, hdr);
11420 nlmsg_free(msg);
11421
11422}
11423
04a773ad
JB		 11424void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11425 struct net_device *netdev, const u8 *bssid,
11426 gfp_t gfp)
11427{
11428 struct sk_buff *msg;
11429 void *hdr;
11430
fd2120ca 11431 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11432 if (!msg)
11433 return;
11434
11435 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11436 if (!hdr) {
11437 nlmsg_free(msg);
11438 return;
11439 }
11440
9360ffd1
DM		 11441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11442 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11443 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11444 goto nla_put_failure;
04a773ad 11445
3b7b72ee 11446 genlmsg_end(msg, hdr);
04a773ad 11447
68eb5503 11448 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11449 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11450 return;
11451
11452 nla_put_failure:
11453 genlmsg_cancel(msg, hdr);
11454 nlmsg_free(msg);
11455}
11456
947add36
JB		 11457void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11458 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11459{
947add36 11460 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11461 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11462 struct sk_buff *msg;
11463 void *hdr;
11464
947add36
JB		 11465 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11466 return;
11467
11468 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11469
c93b5e71
JC		 11470 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11471 if (!msg)
11472 return;
11473
11474 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11475 if (!hdr) {
11476 nlmsg_free(msg);
11477 return;
11478 }
11479
9360ffd1 11480 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11481 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11483 (ie_len && ie &&
11484 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11485 goto nla_put_failure;
c93b5e71 11486
3b7b72ee 11487 genlmsg_end(msg, hdr);
c93b5e71 11488
68eb5503 11489 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11490 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11491 return;
11492
11493 nla_put_failure:
11494 genlmsg_cancel(msg, hdr);
11495 nlmsg_free(msg);
11496}
947add36 11497EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11498
a3b8b056
JM		 11499void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11500 struct net_device *netdev, const u8 *addr,
11501 enum nl80211_key_type key_type, int key_id,
e6d6e342 11502 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11503{
11504 struct sk_buff *msg;
11505 void *hdr;
11506
e6d6e342 11507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11508 if (!msg)
11509 return;
11510
11511 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11512 if (!hdr) {
11513 nlmsg_free(msg);
11514 return;
11515 }
11516
9360ffd1
DM		 11517 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11518 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11519 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11520 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11521 (key_id != -1 &&
11522 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11523 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11524 goto nla_put_failure;
a3b8b056 11525
3b7b72ee 11526 genlmsg_end(msg, hdr);
a3b8b056 11527
68eb5503 11528 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11529 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11530 return;
11531
11532 nla_put_failure:
11533 genlmsg_cancel(msg, hdr);
11534 nlmsg_free(msg);
11535}
11536
6bad8766
LR		 11537void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11538 struct ieee80211_channel *channel_before,
11539 struct ieee80211_channel *channel_after)
11540{
11541 struct sk_buff *msg;
11542 void *hdr;
11543 struct nlattr *nl_freq;
11544
fd2120ca 11545 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11546 if (!msg)
11547 return;
11548
11549 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11550 if (!hdr) {
11551 nlmsg_free(msg);
11552 return;
11553 }
11554
11555 /*
11556 * Since we are applying the beacon hint to a wiphy we know its
11557 * wiphy_idx is valid
11558 */
9360ffd1
DM		 11559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11560 goto nla_put_failure;
6bad8766
LR		 11561
11562 /* Before */
11563 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11564 if (!nl_freq)
11565 goto nla_put_failure;
cdc89b97 11566 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11567 goto nla_put_failure;
11568 nla_nest_end(msg, nl_freq);
11569
11570 /* After */
11571 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11572 if (!nl_freq)
11573 goto nla_put_failure;
cdc89b97 11574 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11575 goto nla_put_failure;
11576 nla_nest_end(msg, nl_freq);
11577
3b7b72ee 11578 genlmsg_end(msg, hdr);
6bad8766 11579
463d0183 11580 rcu_read_lock();
68eb5503 11581 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11582 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11583 rcu_read_unlock();
6bad8766
LR		 11584
11585 return;
11586
11587nla_put_failure:
11588 genlmsg_cancel(msg, hdr);
11589 nlmsg_free(msg);
11590}
11591
9588bbd5
JM		 11592static void nl80211_send_remain_on_chan_event(
11593 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11594 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11595 struct ieee80211_channel *chan,
9588bbd5
JM		 11596 unsigned int duration, gfp_t gfp)
11597{
11598 struct sk_buff *msg;
11599 void *hdr;
11600
11601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11602 if (!msg)
11603 return;
11604
11605 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11606 if (!hdr) {
11607 nlmsg_free(msg);
11608 return;
11609 }
11610
9360ffd1 11611 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11612 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11613 wdev->netdev->ifindex)) ||
00f53350 11614 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11615 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11616 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11617 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11618 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11619 goto nla_put_failure;
9588bbd5 11620
9360ffd1
DM		 11621 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11622 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11623 goto nla_put_failure;
9588bbd5 11624
3b7b72ee 11625 genlmsg_end(msg, hdr);
9588bbd5 11626
68eb5503 11627 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11628 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11629 return;
11630
11631 nla_put_failure:
11632 genlmsg_cancel(msg, hdr);
11633 nlmsg_free(msg);
11634}
11635
947add36
JB		 11636void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11637 struct ieee80211_channel *chan,
11638 unsigned int duration, gfp_t gfp)
9588bbd5 11639{
947add36 11640 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11641 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11642
11643 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11644 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11645 rdev, wdev, cookie, chan,
42d97a59 11646 duration, gfp);
9588bbd5 11647}
947add36 11648EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11649
947add36
JB		 11650void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11651 struct ieee80211_channel *chan,
11652 gfp_t gfp)
9588bbd5 11653{
947add36 11654 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11655 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11656
11657 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11658 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11659 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11660}
947add36 11661EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11662
947add36
JB		 11663void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11664 struct station_info *sinfo, gfp_t gfp)
98b62183 11665{
947add36 11666 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11667 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11668 struct sk_buff *msg;
11669
947add36
JB		 11670 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11671
58050fce 11672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11673 if (!msg)
11674 return;
11675
66266b3a
JL		 11676 if (nl80211_send_station(msg, 0, 0, 0,
11677 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11678 nlmsg_free(msg);
11679 return;
11680 }
11681
68eb5503 11682 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11683 NL80211_MCGRP_MLME, gfp);
98b62183 11684}
947add36 11685EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11686
947add36 11687void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11688{
947add36 11689 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11690 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11691 struct sk_buff *msg;
11692 void *hdr;
11693
947add36
JB		 11694 trace_cfg80211_del_sta(dev, mac_addr);
11695
58050fce 11696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11697 if (!msg)
11698 return;
11699
11700 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11701 if (!hdr) {
11702 nlmsg_free(msg);
11703 return;
11704 }
11705
9360ffd1
DM		 11706 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11707 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11708 goto nla_put_failure;
ec15e68b 11709
3b7b72ee 11710 genlmsg_end(msg, hdr);
ec15e68b 11711
68eb5503 11712 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11713 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11714 return;
11715
11716 nla_put_failure:
11717 genlmsg_cancel(msg, hdr);
11718 nlmsg_free(msg);
11719}
947add36 11720EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11721
947add36
JB		 11722void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11723 enum nl80211_connect_failed_reason reason,
11724 gfp_t gfp)
ed44a951 11725{
947add36 11726 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11727 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11728 struct sk_buff *msg;
11729 void *hdr;
11730
11731 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11732 if (!msg)
11733 return;
11734
11735 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11736 if (!hdr) {
11737 nlmsg_free(msg);
11738 return;
11739 }
11740
11741 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11742 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11743 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11744 goto nla_put_failure;
11745
11746 genlmsg_end(msg, hdr);
11747
68eb5503 11748 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11749 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11750 return;
11751
11752 nla_put_failure:
11753 genlmsg_cancel(msg, hdr);
11754 nlmsg_free(msg);
11755}
947add36 11756EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11757
b92ab5d8
JB		 11758static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11759 const u8 *addr, gfp_t gfp)
28946da7
JB		 11760{
11761 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11762 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11763 struct sk_buff *msg;
11764 void *hdr;
15e47304 11765 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11766
15e47304 11767 if (!nlportid)
28946da7
JB		 11768 return false;
11769
11770 msg = nlmsg_new(100, gfp);
11771 if (!msg)
11772 return true;
11773
b92ab5d8 11774 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11775 if (!hdr) {
11776 nlmsg_free(msg);
11777 return true;
11778 }
11779
9360ffd1
DM		 11780 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11781 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11782 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11783 goto nla_put_failure;
28946da7 11784
9c90a9f6 11785 genlmsg_end(msg, hdr);
15e47304 11786 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11787 return true;
11788
11789 nla_put_failure:
11790 genlmsg_cancel(msg, hdr);
11791 nlmsg_free(msg);
11792 return true;
11793}
11794
947add36
JB		 11795bool cfg80211_rx_spurious_frame(struct net_device *dev,
11796 const u8 *addr, gfp_t gfp)
b92ab5d8 11797{
947add36
JB		 11798 struct wireless_dev *wdev = dev->ieee80211_ptr;
11799 bool ret;
11800
11801 trace_cfg80211_rx_spurious_frame(dev, addr);
11802
11803 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11804 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11805 trace_cfg80211_return_bool(false);
11806 return false;
11807 }
11808 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11809 addr, gfp);
11810 trace_cfg80211_return_bool(ret);
11811 return ret;
b92ab5d8 11812}
947add36 11813EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11814
947add36
JB		 11815bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11816 const u8 *addr, gfp_t gfp)
b92ab5d8 11817{
947add36
JB		 11818 struct wireless_dev *wdev = dev->ieee80211_ptr;
11819 bool ret;
11820
11821 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11822
11823 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11824 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11825 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11826 trace_cfg80211_return_bool(false);
11827 return false;
11828 }
11829 ret = __nl80211_unexpected_frame(dev,
11830 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11831 addr, gfp);
11832 trace_cfg80211_return_bool(ret);
11833 return ret;
b92ab5d8 11834}
947add36 11835EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11836
2e161f78 11837int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11838 struct wireless_dev *wdev, u32 nlportid,
804483e9 11839 int freq, int sig_dbm,
19504cf5 11840 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11841{
71bbc994 11842 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11843 struct sk_buff *msg;
11844 void *hdr;
026331c4
JM		 11845
11846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11847 if (!msg)
11848 return -ENOMEM;
11849
2e161f78 11850 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11851 if (!hdr) {
11852 nlmsg_free(msg);
11853 return -ENOMEM;
11854 }
11855
9360ffd1 11856 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11857 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11858 netdev->ifindex)) ||
a838490b 11859 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11860 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11861 (sig_dbm &&
11862 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11863 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11864 (flags &&
11865 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11866 goto nla_put_failure;
026331c4 11867
3b7b72ee 11868 genlmsg_end(msg, hdr);
026331c4 11869
15e47304 11870 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11871
11872 nla_put_failure:
11873 genlmsg_cancel(msg, hdr);
11874 nlmsg_free(msg);
11875 return -ENOBUFS;
11876}
11877
947add36
JB		 11878void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11879 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11880{
947add36 11881 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11882 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11883 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11884 struct sk_buff *msg;
11885 void *hdr;
11886
947add36
JB		 11887 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11888
026331c4
JM		 11889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11890 if (!msg)
11891 return;
11892
2e161f78 11893 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11894 if (!hdr) {
11895 nlmsg_free(msg);
11896 return;
11897 }
11898
9360ffd1 11899 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11900 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11901 netdev->ifindex)) ||
a838490b 11902 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11903 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11904 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11905 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11906 goto nla_put_failure;
026331c4 11907
3b7b72ee 11908 genlmsg_end(msg, hdr);
026331c4 11909
68eb5503 11910 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11911 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11912 return;
11913
11914 nla_put_failure:
11915 genlmsg_cancel(msg, hdr);
11916 nlmsg_free(msg);
11917}
947add36 11918EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11919
5b97f49d
JB		 11920static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
11921 const char *mac, gfp_t gfp)
d6dc1a38 11922{
947add36 11923 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 11924 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11925 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11926 void **cb;
947add36 11927
d6dc1a38 11928 if (!msg)
5b97f49d 11929 return NULL;
d6dc1a38 11930
5b97f49d
JB		 11931 cb = (void **)msg->cb;
11932
11933 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11934 if (!cb[0]) {
d6dc1a38 11935 nlmsg_free(msg);
5b97f49d 11936 return NULL;
d6dc1a38
JO		 11937 }
11938
9360ffd1 11939 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11940 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11941 goto nla_put_failure;
d6dc1a38 11942
5b97f49d 11943 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 11944 goto nla_put_failure;
11945
5b97f49d
JB		 11946 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
11947 if (!cb[1])
9360ffd1 11948 goto nla_put_failure;
d6dc1a38 11949
5b97f49d 11950 cb[2] = rdev;
d6dc1a38 11951
5b97f49d
JB		 11952 return msg;
11953 nla_put_failure:
11954 nlmsg_free(msg);
11955 return NULL;
11956}
11957
11958static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
11959{
11960 void **cb = (void **)msg->cb;
11961 struct cfg80211_registered_device *rdev = cb[2];
11962
11963 nla_nest_end(msg, cb[1]);
11964 genlmsg_end(msg, cb[0]);
11965
11966 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 11967
68eb5503 11968 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11969 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 11970}
11971
11972void cfg80211_cqm_rssi_notify(struct net_device *dev,
11973 enum nl80211_cqm_rssi_threshold_event rssi_event,
11974 gfp_t gfp)
11975{
11976 struct sk_buff *msg;
11977
11978 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11979
98f03342
JB		 11980 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
11981 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
11982 return;
11983
5b97f49d
JB		 11984 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
11985 if (!msg)
11986 return;
11987
11988 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11989 rssi_event))
11990 goto nla_put_failure;
11991
11992 cfg80211_send_cqm(msg, gfp);
11993
d6dc1a38
JO		 11994 return;
11995
11996 nla_put_failure:
d6dc1a38
JO		 11997 nlmsg_free(msg);
11998}
947add36 11999EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12000
5b97f49d
JB		 12001void cfg80211_cqm_txe_notify(struct net_device *dev,
12002 const u8 *peer, u32 num_packets,
12003 u32 rate, u32 intvl, gfp_t gfp)
12004{
12005 struct sk_buff *msg;
12006
12007 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12008 if (!msg)
12009 return;
12010
12011 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12012 goto nla_put_failure;
12013
12014 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12015 goto nla_put_failure;
12016
12017 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12018 goto nla_put_failure;
12019
12020 cfg80211_send_cqm(msg, gfp);
12021 return;
12022
12023 nla_put_failure:
12024 nlmsg_free(msg);
12025}
12026EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12027
12028void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12029 const u8 *peer, u32 num_packets, gfp_t gfp)
12030{
12031 struct sk_buff *msg;
12032
12033 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12034
12035 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12036 if (!msg)
12037 return;
12038
12039 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12040 goto nla_put_failure;
12041
12042 cfg80211_send_cqm(msg, gfp);
12043 return;
12044
12045 nla_put_failure:
12046 nlmsg_free(msg);
12047}
12048EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12049
98f03342
JB		 12050void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12051{
12052 struct sk_buff *msg;
12053
12054 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12055 if (!msg)
12056 return;
12057
12058 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12059 goto nla_put_failure;
12060
12061 cfg80211_send_cqm(msg, gfp);
12062 return;
12063
12064 nla_put_failure:
12065 nlmsg_free(msg);
12066}
12067EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12068
947add36
JB		 12069static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12070 struct net_device *netdev, const u8 *bssid,
12071 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12072{
12073 struct sk_buff *msg;
12074 struct nlattr *rekey_attr;
12075 void *hdr;
12076
58050fce 12077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12078 if (!msg)
12079 return;
12080
12081 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12082 if (!hdr) {
12083 nlmsg_free(msg);
12084 return;
12085 }
12086
9360ffd1
DM		 12087 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12088 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12089 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12090 goto nla_put_failure;
e5497d76
JB		 12091
12092 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12093 if (!rekey_attr)
12094 goto nla_put_failure;
12095
9360ffd1
DM		 12096 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12097 NL80211_REPLAY_CTR_LEN, replay_ctr))
12098 goto nla_put_failure;
e5497d76
JB		 12099
12100 nla_nest_end(msg, rekey_attr);
12101
3b7b72ee 12102 genlmsg_end(msg, hdr);
e5497d76 12103
68eb5503 12104 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12105 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12106 return;
12107
12108 nla_put_failure:
12109 genlmsg_cancel(msg, hdr);
12110 nlmsg_free(msg);
12111}
12112
947add36
JB		 12113void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12114 const u8 *replay_ctr, gfp_t gfp)
12115{
12116 struct wireless_dev *wdev = dev->ieee80211_ptr;
12117 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12118 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12119
12120 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12121 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12122}
12123EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12124
12125static void
12126nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12127 struct net_device *netdev, int index,
12128 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12129{
12130 struct sk_buff *msg;
12131 struct nlattr *attr;
12132 void *hdr;
12133
58050fce 12134 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12135 if (!msg)
12136 return;
12137
12138 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12139 if (!hdr) {
12140 nlmsg_free(msg);
12141 return;
12142 }
12143
9360ffd1
DM		 12144 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12145 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12146 goto nla_put_failure;
c9df56b4
JM		 12147
12148 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12149 if (!attr)
12150 goto nla_put_failure;
12151
9360ffd1
DM		 12152 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12153 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12154 (preauth &&
12155 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12156 goto nla_put_failure;
c9df56b4
JM		 12157
12158 nla_nest_end(msg, attr);
12159
3b7b72ee 12160 genlmsg_end(msg, hdr);
c9df56b4 12161
68eb5503 12162 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12163 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12164 return;
12165
12166 nla_put_failure:
12167 genlmsg_cancel(msg, hdr);
12168 nlmsg_free(msg);
12169}
12170
947add36
JB		 12171void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12172 const u8 *bssid, bool preauth, gfp_t gfp)
12173{
12174 struct wireless_dev *wdev = dev->ieee80211_ptr;
12175 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12176 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12177
12178 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12179 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12180}
12181EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12182
12183static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12184 struct net_device *netdev,
12185 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12186 gfp_t gfp,
12187 enum nl80211_commands notif,
12188 u8 count)
5314526b
TP		 12189{
12190 struct sk_buff *msg;
12191 void *hdr;
12192
58050fce 12193 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12194 if (!msg)
12195 return;
12196
f8d7552e 12197 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12198 if (!hdr) {
12199 nlmsg_free(msg);
12200 return;
12201 }
12202
683b6d3b
JB		 12203 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12204 goto nla_put_failure;
12205
12206 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12207 goto nla_put_failure;
5314526b 12208
f8d7552e
LC		 12209 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12210 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12211 goto nla_put_failure;
12212
5314526b
TP		 12213 genlmsg_end(msg, hdr);
12214
68eb5503 12215 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12216 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12217 return;
12218
12219 nla_put_failure:
12220 genlmsg_cancel(msg, hdr);
12221 nlmsg_free(msg);
12222}
12223
947add36
JB		 12224void cfg80211_ch_switch_notify(struct net_device *dev,
12225 struct cfg80211_chan_def *chandef)
84f10708 12226{
947add36
JB		 12227 struct wireless_dev *wdev = dev->ieee80211_ptr;
12228 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12229 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12230
e487eaeb 12231 ASSERT_WDEV_LOCK(wdev);
947add36 12232
e487eaeb 12233 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12234
9e0e2961 12235 wdev->chandef = *chandef;
96f55f12 12236 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12237 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12238 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12239}
12240EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12241
f8d7552e
LC		 12242void cfg80211_ch_switch_started_notify(struct net_device *dev,
12243 struct cfg80211_chan_def *chandef,
12244 u8 count)
12245{
12246 struct wireless_dev *wdev = dev->ieee80211_ptr;
12247 struct wiphy *wiphy = wdev->wiphy;
12248 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12249
12250 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12251
12252 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12253 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12254}
12255EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12256
04f39047
SW		 12257void
12258nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12259 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12260 enum nl80211_radar_event event,
12261 struct net_device *netdev, gfp_t gfp)
12262{
12263 struct sk_buff *msg;
12264 void *hdr;
12265
12266 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12267 if (!msg)
12268 return;
12269
12270 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12271 if (!hdr) {
12272 nlmsg_free(msg);
12273 return;
12274 }
12275
12276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12277 goto nla_put_failure;
12278
12279 /* NOP and radar events don't need a netdev parameter */
12280 if (netdev) {
12281 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12282
12283 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12284 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12285 goto nla_put_failure;
12286 }
12287
12288 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12289 goto nla_put_failure;
12290
12291 if (nl80211_send_chandef(msg, chandef))
12292 goto nla_put_failure;
12293
9c90a9f6 12294 genlmsg_end(msg, hdr);
04f39047 12295
68eb5503 12296 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12297 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12298 return;
12299
12300 nla_put_failure:
12301 genlmsg_cancel(msg, hdr);
12302 nlmsg_free(msg);
12303}
12304
7f6cf311
JB		 12305void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12306 u64 cookie, bool acked, gfp_t gfp)
12307{
12308 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12309 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12310 struct sk_buff *msg;
12311 void *hdr;
7f6cf311 12312
4ee3e063
BL		 12313 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12314
58050fce 12315 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12316
7f6cf311
JB		 12317 if (!msg)
12318 return;
12319
12320 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12321 if (!hdr) {
12322 nlmsg_free(msg);
12323 return;
12324 }
12325
9360ffd1
DM		 12326 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12327 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12328 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12329 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12330 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12331 goto nla_put_failure;
7f6cf311 12332
9c90a9f6 12333 genlmsg_end(msg, hdr);
7f6cf311 12334
68eb5503 12335 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12336 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12337 return;
12338
12339 nla_put_failure:
12340 genlmsg_cancel(msg, hdr);
12341 nlmsg_free(msg);
12342}
12343EXPORT_SYMBOL(cfg80211_probe_status);
12344
5e760230
JB		 12345void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12346 const u8 *frame, size_t len,
37c73b5f 12347 int freq, int sig_dbm)
5e760230 12348{
f26cbf40 12349 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12350 struct sk_buff *msg;
12351 void *hdr;
37c73b5f 12352 struct cfg80211_beacon_registration *reg;
5e760230 12353
4ee3e063
BL		 12354 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12355
37c73b5f
BG		 12356 spin_lock_bh(&rdev->beacon_registrations_lock);
12357 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12358 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12359 if (!msg) {
12360 spin_unlock_bh(&rdev->beacon_registrations_lock);
12361 return;
12362 }
5e760230 12363
37c73b5f
BG		 12364 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12365 if (!hdr)
12366 goto nla_put_failure;
5e760230 12367
37c73b5f
BG		 12368 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12369 (freq &&
12370 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12371 (sig_dbm &&
12372 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12373 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12374 goto nla_put_failure;
5e760230 12375
37c73b5f 12376 genlmsg_end(msg, hdr);
5e760230 12377
37c73b5f
BG		 12378 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12379 }
12380 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12381 return;
12382
12383 nla_put_failure:
37c73b5f
BG		 12384 spin_unlock_bh(&rdev->beacon_registrations_lock);
12385 if (hdr)
12386 genlmsg_cancel(msg, hdr);
5e760230
JB		 12387 nlmsg_free(msg);
12388}
12389EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12390
cd8f7cb4 12391#ifdef CONFIG_PM
8cd4d456
LC		 12392static int cfg80211_net_detect_results(struct sk_buff *msg,
12393 struct cfg80211_wowlan_wakeup *wakeup)
12394{
12395 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12396 struct nlattr *nl_results, *nl_match, *nl_freqs;
12397 int i, j;
12398
12399 nl_results = nla_nest_start(
12400 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12401 if (!nl_results)
12402 return -EMSGSIZE;
12403
12404 for (i = 0; i < nd->n_matches; i++) {
12405 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12406
12407 nl_match = nla_nest_start(msg, i);
12408 if (!nl_match)
12409 break;
12410
12411 /* The SSID attribute is optional in nl80211, but for
12412 * simplicity reasons it's always present in the
12413 * cfg80211 structure. If a driver can't pass the
12414 * SSID, that needs to be changed. A zero length SSID
12415 * is still a valid SSID (wildcard), so it cannot be
12416 * used for this purpose.
12417 */
12418 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12419 match->ssid.ssid)) {
12420 nla_nest_cancel(msg, nl_match);
12421 goto out;
12422 }
12423
12424 if (match->n_channels) {
12425 nl_freqs = nla_nest_start(
12426 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12427 if (!nl_freqs) {
12428 nla_nest_cancel(msg, nl_match);
12429 goto out;
12430 }
12431
12432 for (j = 0; j < match->n_channels; j++) {
12433 if (nla_put_u32(msg,
12434 NL80211_ATTR_WIPHY_FREQ,
12435 match->channels[j])) {
12436 nla_nest_cancel(msg, nl_freqs);
12437 nla_nest_cancel(msg, nl_match);
12438 goto out;
12439 }
12440 }
12441
12442 nla_nest_end(msg, nl_freqs);
12443 }
12444
12445 nla_nest_end(msg, nl_match);
12446 }
12447
12448out:
12449 nla_nest_end(msg, nl_results);
12450 return 0;
12451}
12452
cd8f7cb4
JB		 12453void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12454 struct cfg80211_wowlan_wakeup *wakeup,
12455 gfp_t gfp)
12456{
f26cbf40 12457 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12458 struct sk_buff *msg;
12459 void *hdr;
9c90a9f6 12460 int size = 200;
cd8f7cb4
JB		 12461
12462 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12463
12464 if (wakeup)
12465 size += wakeup->packet_present_len;
12466
12467 msg = nlmsg_new(size, gfp);
12468 if (!msg)
12469 return;
12470
12471 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12472 if (!hdr)
12473 goto free_msg;
12474
12475 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12476 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12477 goto free_msg;
12478
12479 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12480 wdev->netdev->ifindex))
12481 goto free_msg;
12482
12483 if (wakeup) {
12484 struct nlattr *reasons;
12485
12486 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12487 if (!reasons)
12488 goto free_msg;
cd8f7cb4
JB		 12489
12490 if (wakeup->disconnect &&
12491 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12492 goto free_msg;
12493 if (wakeup->magic_pkt &&
12494 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12495 goto free_msg;
12496 if (wakeup->gtk_rekey_failure &&
12497 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12498 goto free_msg;
12499 if (wakeup->eap_identity_req &&
12500 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12501 goto free_msg;
12502 if (wakeup->four_way_handshake &&
12503 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12504 goto free_msg;
12505 if (wakeup->rfkill_release &&
12506 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12507 goto free_msg;
12508
12509 if (wakeup->pattern_idx >= 0 &&
12510 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12511 wakeup->pattern_idx))
12512 goto free_msg;
12513
ae917c9f
JB		 12514 if (wakeup->tcp_match &&
12515 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12516 goto free_msg;
2a0e047e 12517
ae917c9f
JB		 12518 if (wakeup->tcp_connlost &&
12519 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12520 goto free_msg;
2a0e047e 12521
ae917c9f
JB		 12522 if (wakeup->tcp_nomoretokens &&
12523 nla_put_flag(msg,
12524 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12525 goto free_msg;
2a0e047e 12526
cd8f7cb4
JB		 12527 if (wakeup->packet) {
12528 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12529 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12530
12531 if (!wakeup->packet_80211) {
12532 pkt_attr =
12533 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12534 len_attr =
12535 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12536 }
12537
12538 if (wakeup->packet_len &&
12539 nla_put_u32(msg, len_attr, wakeup->packet_len))
12540 goto free_msg;
12541
12542 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12543 wakeup->packet))
12544 goto free_msg;
12545 }
12546
8cd4d456
LC		 12547 if (wakeup->net_detect &&
12548 cfg80211_net_detect_results(msg, wakeup))
12549 goto free_msg;
12550
cd8f7cb4
JB		 12551 nla_nest_end(msg, reasons);
12552 }
12553
9c90a9f6 12554 genlmsg_end(msg, hdr);
cd8f7cb4 12555
68eb5503 12556 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12557 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12558 return;
12559
12560 free_msg:
12561 nlmsg_free(msg);
12562}
12563EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12564#endif
12565
3475b094
JM		 12566void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12567 enum nl80211_tdls_operation oper,
12568 u16 reason_code, gfp_t gfp)
12569{
12570 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12571 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12572 struct sk_buff *msg;
12573 void *hdr;
3475b094
JM		 12574
12575 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12576 reason_code);
12577
12578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12579 if (!msg)
12580 return;
12581
12582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12583 if (!hdr) {
12584 nlmsg_free(msg);
12585 return;
12586 }
12587
12588 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12589 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12590 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12591 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12592 (reason_code > 0 &&
12593 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12594 goto nla_put_failure;
12595
9c90a9f6 12596 genlmsg_end(msg, hdr);
3475b094 12597
68eb5503 12598 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12599 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12600 return;
12601
12602 nla_put_failure:
12603 genlmsg_cancel(msg, hdr);
12604 nlmsg_free(msg);
12605}
12606EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12607
026331c4
JM		 12608static int nl80211_netlink_notify(struct notifier_block * nb,
12609 unsigned long state,
12610 void *_notify)
12611{
12612 struct netlink_notify *notify = _notify;
12613 struct cfg80211_registered_device *rdev;
12614 struct wireless_dev *wdev;
37c73b5f 12615 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12616
12617 if (state != NETLINK_URELEASE)
12618 return NOTIFY_DONE;
12619
12620 rcu_read_lock();
12621
5e760230 12622 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12623 bool schedule_destroy_work = false;
93a1e86c
JR		 12624 bool schedule_scan_stop = false;
12625 struct cfg80211_sched_scan_request *sched_scan_req =
12626 rcu_dereference(rdev->sched_scan_req);
12627
12628 if (sched_scan_req && notify->portid &&
12629 sched_scan_req->owner_nlportid == notify->portid)
12630 schedule_scan_stop = true;
78f22b6a
JB		 12631
12632 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12633 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12634
78f22b6a
JB		 12635 if (wdev->owner_nlportid == notify->portid)
12636 schedule_destroy_work = true;
12637 }
12638
37c73b5f
BG		 12639 spin_lock_bh(&rdev->beacon_registrations_lock);
12640 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12641 list) {
12642 if (reg->nlportid == notify->portid) {
12643 list_del(&reg->list);
12644 kfree(reg);
12645 break;
12646 }
12647 }
12648 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12649
12650 if (schedule_destroy_work) {
12651 struct cfg80211_iface_destroy *destroy;
12652
12653 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12654 if (destroy) {
12655 destroy->nlportid = notify->portid;
12656 spin_lock(&rdev->destroy_list_lock);
12657 list_add(&destroy->list, &rdev->destroy_list);
12658 spin_unlock(&rdev->destroy_list_lock);
12659 schedule_work(&rdev->destroy_work);
12660 }
93a1e86c
JR		 12661 } else if (schedule_scan_stop) {
12662 sched_scan_req->owner_nlportid = 0;
12663
12664 if (rdev->ops->sched_scan_stop &&
12665 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12666 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 12667 }
5e760230 12668 }
026331c4
JM		 12669
12670 rcu_read_unlock();
12671
6784c7db 12672 return NOTIFY_OK;
026331c4
JM		 12673}
12674
12675static struct notifier_block nl80211_netlink_notifier = {
12676 .notifier_call = nl80211_netlink_notify,
12677};
12678
355199e0
JM		 12679void cfg80211_ft_event(struct net_device *netdev,
12680 struct cfg80211_ft_event_params *ft_event)
12681{
12682 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12683 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12684 struct sk_buff *msg;
12685 void *hdr;
355199e0
JM		 12686
12687 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12688
12689 if (!ft_event->target_ap)
12690 return;
12691
12692 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12693 if (!msg)
12694 return;
12695
12696 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12697 if (!hdr)
12698 goto out;
355199e0 12699
ae917c9f
JB		 12700 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12701 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12702 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12703 goto out;
355199e0 12704
ae917c9f
JB		 12705 if (ft_event->ies &&
12706 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12707 goto out;
12708 if (ft_event->ric_ies &&
12709 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12710 ft_event->ric_ies))
12711 goto out;
355199e0 12712
9c90a9f6 12713 genlmsg_end(msg, hdr);
355199e0 12714
68eb5503 12715 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12716 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12717 return;
12718 out:
12719 nlmsg_free(msg);
355199e0
JM		 12720}
12721EXPORT_SYMBOL(cfg80211_ft_event);
12722
5de17984
AS		 12723void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12724{
12725 struct cfg80211_registered_device *rdev;
12726 struct sk_buff *msg;
12727 void *hdr;
12728 u32 nlportid;
12729
f26cbf40 12730 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12731 if (!rdev->crit_proto_nlportid)
12732 return;
12733
12734 nlportid = rdev->crit_proto_nlportid;
12735 rdev->crit_proto_nlportid = 0;
12736
12737 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12738 if (!msg)
12739 return;
12740
12741 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12742 if (!hdr)
12743 goto nla_put_failure;
12744
12745 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12746 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12747 goto nla_put_failure;
12748
12749 genlmsg_end(msg, hdr);
12750
12751 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12752 return;
12753
12754 nla_put_failure:
12755 if (hdr)
12756 genlmsg_cancel(msg, hdr);
12757 nlmsg_free(msg);
12758
12759}
12760EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12761
348baf0e
JB		 12762void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12763{
12764 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12765 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12766 struct sk_buff *msg;
12767 void *hdr;
12768
12769 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12770 if (!msg)
12771 return;
12772
12773 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12774 if (!hdr)
12775 goto out;
12776
12777 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12778 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12779 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12780 goto out;
12781
12782 genlmsg_end(msg, hdr);
12783
12784 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12785 NL80211_MCGRP_MLME, GFP_KERNEL);
12786 return;
12787 out:
12788 nlmsg_free(msg);
12789}
12790
55682965
JB		 12791/* initialisation/exit functions */
12792
12793int nl80211_init(void)
12794{
0d63cbb5 12795 int err;
55682965 12796
2a94fe48
JB		 12797 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12798 nl80211_mcgrps);
55682965
JB		 12799 if (err)
12800 return err;
12801
026331c4
JM		 12802 err = netlink_register_notifier(&nl80211_netlink_notifier);
12803 if (err)
12804 goto err_out;
12805
55682965
JB		 12806 return 0;
12807 err_out:
12808 genl_unregister_family(&nl80211_fam);
12809 return err;
12810}
12811
12812void nl80211_exit(void)
12813{
026331c4 12814 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12815 genl_unregister_family(&nl80211_fam);
12816}
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