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mac80211: move MU_MIMO_OWNER flag to ieee80211_vif
[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
7bdbe400 6 * Copyright 2015 Intel Deutschland GmbH
55682965
JB		 7 */
8
9#include <linux/if.h>
10#include <linux/module.h>
11#include <linux/err.h>
5a0e3ad6 12#include <linux/slab.h>
55682965
JB		 13#include <linux/list.h>
14#include <linux/if_ether.h>
15#include <linux/ieee80211.h>
16#include <linux/nl80211.h>
17#include <linux/rtnetlink.h>
18#include <linux/netlink.h>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
f84f771d 35static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 36 struct genl_info *info);
f84f771d 37static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 38 struct genl_info *info);
39
55682965
JB		 40/* the netlink family */
41static struct genl_family nl80211_fam = {
fb4e1568
MH		 42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
55682965 46 .maxattr = NL80211_ATTR_MAX,
463d0183 47 .netnsok = true,
4c476991
JB		 48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
55682965
JB		 50};
51
2a94fe48
JB		 52/* multicast groups */
53enum nl80211_multicast_groups {
54 NL80211_MCGRP_CONFIG,
55 NL80211_MCGRP_SCAN,
56 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_MLME,
567ffc35 58 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60};
61
62static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 68#ifdef CONFIG_NL80211_TESTMODE
71b836ec 69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 70#endif
71};
72
89a54e48
JB		 73/* returns ERR_PTR values */
74static struct wireless_dev *
75__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 76{
89a54e48
JB		 77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
81 u64 wdev_id;
82 int wiphy_idx = -1;
83 int ifidx = -1;
55682965 84
5fe231e8 85 ASSERT_RTNL();
55682965 86
89a54e48
JB		 87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
55682965 89
89a54e48
JB		 90 if (have_ifidx)
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 if (have_wdev_id) {
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
55682965
JB		 95 }
96
89a54e48
JB		 97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
99
100 if (wiphy_net(&rdev->wiphy) != netns)
101 continue;
102
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 continue;
105
89a54e48
JB		 106 list_for_each_entry(wdev, &rdev->wdev_list, list) {
107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
109 result = wdev;
110 break;
111 }
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 result = wdev;
114 break;
115 }
116 }
89a54e48
JB		 117
118 if (result)
119 break;
120 }
121
122 if (result)
123 return result;
124 return ERR_PTR(-ENODEV);
55682965
JB		 125}
126
a9455408 127static struct cfg80211_registered_device *
878d9ec7 128__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 129{
7fee4778
JB		 130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
a9455408 132
5fe231e8 133 ASSERT_RTNL();
a9455408 134
878d9ec7 135 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 138 return ERR_PTR(-EINVAL);
139
878d9ec7 140 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 141 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 143
89a54e48
JB		 144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
147 bool found = false;
148
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 if (tmp) {
151 /* make sure wdev exists */
89a54e48
JB		 152 list_for_each_entry(wdev, &tmp->wdev_list, list) {
153 if (wdev->identifier != (u32)wdev_id)
154 continue;
155 found = true;
156 break;
157 }
89a54e48
JB		 158
159 if (!found)
160 tmp = NULL;
161
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164 rdev = tmp;
165 }
166 }
167
878d9ec7
JB		 168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 170 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 171 if (netdev) {
172 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 173 tmp = wiphy_to_rdev(
174 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 175 else
176 tmp = NULL;
177
7fee4778
JB		 178 /* not wireless device -- return error */
179 if (!tmp)
180 return ERR_PTR(-EINVAL);
181
182 /* mismatch -- return error */
183 if (rdev && tmp != rdev)
184 return ERR_PTR(-EINVAL);
185
186 rdev = tmp;
a9455408 187 }
a9455408 188 }
a9455408 189
4f7eff10
JB		 190 if (!rdev)
191 return ERR_PTR(-ENODEV);
a9455408 192
4f7eff10
JB		 193 if (netns != wiphy_net(&rdev->wiphy))
194 return ERR_PTR(-ENODEV);
195
196 return rdev;
a9455408
JB		 197}
198
199/*
200 * This function returns a pointer to the driver
201 * that the genl_info item that is passed refers to.
a9455408
JB		 202 *
203 * The result of this can be a PTR_ERR and hence must
204 * be checked with IS_ERR() for errors.
205 */
206static struct cfg80211_registered_device *
4f7eff10 207cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 208{
5fe231e8 209 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 210}
211
55682965 212/* policy for the attributes */
8cd4d456 213static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 214 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
215 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 216 .len = 20-1 },
31888487 217 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 218
72bdcf34 219 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 220 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 221 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
224
b9a5f8ca
JM		 225 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 229 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 230 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 231
232 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 235
e007b857
EP		 236 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
237 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 238
b9454e83 239 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 240 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
241 .len = WLAN_MAX_KEY_LEN },
242 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
243 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
244 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 245 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 246 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 247
248 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
249 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
252 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 254 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
255 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
256 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
258 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 259 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 260 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 261 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 262 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 263 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 264 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 265
b2e1b302
LR		 266 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
267 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
268
9f1ba906
JM		 269 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 272 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
273 .len = NL80211_MAX_SUPP_RATES },
50b12f59 274 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 275
24bdd9f4 276 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 277 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 278
6c739419 279 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 280
281 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
282 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
283 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 284 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 286
287 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_SSID_LEN },
289 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
290 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 291 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 292 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 293 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 294 [NL80211_ATTR_STA_FLAGS2] = {
295 .len = sizeof(struct nl80211_sta_flag_update),
296 },
3f77316c 297 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 298 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
299 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 300 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
301 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
302 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 303 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 304 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 305 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
306 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 307 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
308 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 309 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 310 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
311 .len = IEEE80211_MAX_DATA_LEN },
312 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 313 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 314 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 315 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 316 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 317 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 319 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 320 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
321 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 322 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 323 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 324 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 325 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 326 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 327 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 328 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 329 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 330 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 331 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
332 .len = IEEE80211_MAX_DATA_LEN },
333 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 335 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 336 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 337 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 338 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 343 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 344 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 345 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 347 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 348 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
350 .len = NL80211_HT_CAPABILITY_LEN
351 },
1d9d9213 352 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 353 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 354 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 355 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 356 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 357 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 358 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 359 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 360 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
361 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 362 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
363 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 364 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
365 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 366 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 367 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
368 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
369 .len = NL80211_VHT_CAPABILITY_LEN,
370 },
355199e0
JM		 371 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
372 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
373 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 374 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 375 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
376 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
377 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 378 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
379 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 380 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
381 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 382 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 383 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 384 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 387 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
388 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 389 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
390 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 391 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 392 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 393 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 394 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 395 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
396 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
397 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 398 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 399 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 400 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 401 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 402 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 403 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 404 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
55682965
JB		 405};
406
e31b8213 407/* policy for the key attributes */
b54452b0 408static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 409 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 410 [NL80211_KEY_IDX] = { .type = NLA_U8 },
411 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 412 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 413 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
414 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 415 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 416 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
417};
418
419/* policy for the key default flags */
420static const struct nla_policy
421nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
422 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
423 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 424};
425
ff1b6e69
JB		 426/* policy for WoWLAN attributes */
427static const struct nla_policy
428nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
429 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 433 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
435 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
436 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 437 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 438 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 439};
440
441static const struct nla_policy
442nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
443 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
444 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
445 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
446 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
447 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
448 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
449 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
450 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
451 },
452 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
453 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
454 },
455 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
456 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
457 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 458};
459
be29b99a
AK		 460/* policy for coalesce rule attributes */
461static const struct nla_policy
462nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
463 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
464 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
465 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
466};
467
e5497d76
JB		 468/* policy for GTK rekey offload attributes */
469static const struct nla_policy
470nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
471 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
472 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
473 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
474};
475
a1f1c21c
LC		 476static const struct nla_policy
477nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 478 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 479 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 480 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 481};
482
3b06d277
AS		 483static const struct nla_policy
484nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
485 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
486 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
487};
488
97990a06
JB		 489static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
490 struct netlink_callback *cb,
491 struct cfg80211_registered_device **rdev,
492 struct wireless_dev **wdev)
a043897a 493{
97990a06 494 int err;
a043897a 495
97990a06 496 rtnl_lock();
a043897a 497
97990a06
JB		 498 if (!cb->args[0]) {
499 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
500 nl80211_fam.attrbuf, nl80211_fam.maxattr,
501 nl80211_policy);
502 if (err)
503 goto out_unlock;
67748893 504
97990a06
JB		 505 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
506 nl80211_fam.attrbuf);
507 if (IS_ERR(*wdev)) {
508 err = PTR_ERR(*wdev);
509 goto out_unlock;
510 }
f26cbf40 511 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 512 /* 0 is the first index - add 1 to parse only once */
513 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 514 cb->args[1] = (*wdev)->identifier;
515 } else {
c319d50b
JB		 516 /* subtract the 1 again here */
517 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 518 struct wireless_dev *tmp;
67748893 519
97990a06
JB		 520 if (!wiphy) {
521 err = -ENODEV;
522 goto out_unlock;
523 }
f26cbf40 524 *rdev = wiphy_to_rdev(wiphy);
97990a06 525 *wdev = NULL;
67748893 526
97990a06
JB		 527 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
528 if (tmp->identifier == cb->args[1]) {
529 *wdev = tmp;
530 break;
531 }
532 }
67748893 533
97990a06
JB		 534 if (!*wdev) {
535 err = -ENODEV;
536 goto out_unlock;
537 }
67748893
JB		 538 }
539
67748893 540 return 0;
97990a06 541 out_unlock:
67748893
JB		 542 rtnl_unlock();
543 return err;
544}
545
97990a06 546static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 547{
67748893
JB		 548 rtnl_unlock();
549}
550
f4a11bb0
JB		 551/* IE validation */
552static bool is_valid_ie_attr(const struct nlattr *attr)
553{
554 const u8 *pos;
555 int len;
556
557 if (!attr)
558 return true;
559
560 pos = nla_data(attr);
561 len = nla_len(attr);
562
563 while (len) {
564 u8 elemlen;
565
566 if (len < 2)
567 return false;
568 len -= 2;
569
570 elemlen = pos[1];
571 if (elemlen > len)
572 return false;
573
574 len -= elemlen;
575 pos += 2 + elemlen;
576 }
577
578 return true;
579}
580
55682965 581/* message building helper */
15e47304 582static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 583 int flags, u8 cmd)
584{
585 /* since there is no private header just add the generic one */
15e47304 586 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 587}
588
5dab3b8a 589static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 590 struct ieee80211_channel *chan,
591 bool large)
5dab3b8a 592{
ea077c1c
RL		 593 /* Some channels must be completely excluded from the
594 * list to protect old user-space tools from breaking
595 */
596 if (!large && chan->flags &
597 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
598 return 0;
599
9360ffd1
DM		 600 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
601 chan->center_freq))
602 goto nla_put_failure;
5dab3b8a 603
9360ffd1
DM		 604 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
605 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
606 goto nla_put_failure;
8fe02e16
LR		 607 if (chan->flags & IEEE80211_CHAN_NO_IR) {
608 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
609 goto nla_put_failure;
610 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
611 goto nla_put_failure;
612 }
cdc89b97
JB		 613 if (chan->flags & IEEE80211_CHAN_RADAR) {
614 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
615 goto nla_put_failure;
616 if (large) {
617 u32 time;
618
619 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
620
621 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
622 chan->dfs_state))
623 goto nla_put_failure;
624 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
625 time))
626 goto nla_put_failure;
089027e5
JD		 627 if (nla_put_u32(msg,
628 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
629 chan->dfs_cac_ms))
630 goto nla_put_failure;
cdc89b97
JB		 631 }
632 }
5dab3b8a 633
fe1abafd
JB		 634 if (large) {
635 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
637 goto nla_put_failure;
638 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
639 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
640 goto nla_put_failure;
641 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
642 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
643 goto nla_put_failure;
644 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
645 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
646 goto nla_put_failure;
570dbde1
DS		 647 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
648 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
649 goto nla_put_failure;
06f207fc
AN		 650 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
651 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 652 goto nla_put_failure;
ea077c1c
RL		 653 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
654 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
655 goto nla_put_failure;
656 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
657 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
658 goto nla_put_failure;
fe1abafd
JB		 659 }
660
9360ffd1
DM		 661 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
662 DBM_TO_MBM(chan->max_power)))
663 goto nla_put_failure;
5dab3b8a
LR		 664
665 return 0;
666
667 nla_put_failure:
668 return -ENOBUFS;
669}
670
55682965
JB		 671/* netlink command implementations */
672
b9454e83
JB		 673struct key_parse {
674 struct key_params p;
675 int idx;
e31b8213 676 int type;
b9454e83 677 bool def, defmgmt;
dbd2fd65 678 bool def_uni, def_multi;
b9454e83
JB		 679};
680
681static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
682{
683 struct nlattr *tb[NL80211_KEY_MAX + 1];
684 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
685 nl80211_key_policy);
686 if (err)
687 return err;
688
689 k->def = !!tb[NL80211_KEY_DEFAULT];
690 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
691
dbd2fd65
JB		 692 if (k->def) {
693 k->def_uni = true;
694 k->def_multi = true;
695 }
696 if (k->defmgmt)
697 k->def_multi = true;
698
b9454e83
JB		 699 if (tb[NL80211_KEY_IDX])
700 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
701
702 if (tb[NL80211_KEY_DATA]) {
703 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
704 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
705 }
706
707 if (tb[NL80211_KEY_SEQ]) {
708 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
709 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
710 }
711
712 if (tb[NL80211_KEY_CIPHER])
713 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
714
e31b8213
JB		 715 if (tb[NL80211_KEY_TYPE]) {
716 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
717 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
718 return -EINVAL;
719 }
720
dbd2fd65
JB		 721 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
722 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 723 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
724 tb[NL80211_KEY_DEFAULT_TYPES],
725 nl80211_key_default_policy);
dbd2fd65
JB		 726 if (err)
727 return err;
728
729 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
730 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
731 }
732
b9454e83
JB		 733 return 0;
734}
735
736static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
737{
738 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
739 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
740 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
741 }
742
743 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
744 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
745 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
746 }
747
748 if (info->attrs[NL80211_ATTR_KEY_IDX])
749 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
750
751 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
752 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
753
754 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
755 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
756
dbd2fd65
JB		 757 if (k->def) {
758 k->def_uni = true;
759 k->def_multi = true;
760 }
761 if (k->defmgmt)
762 k->def_multi = true;
763
e31b8213
JB		 764 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
765 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
766 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
767 return -EINVAL;
768 }
769
dbd2fd65
JB		 770 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
771 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
772 int err = nla_parse_nested(
773 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
774 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
775 nl80211_key_default_policy);
776 if (err)
777 return err;
778
779 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
780 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
781 }
782
b9454e83
JB		 783 return 0;
784}
785
786static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
787{
788 int err;
789
790 memset(k, 0, sizeof(*k));
791 k->idx = -1;
e31b8213 792 k->type = -1;
b9454e83
JB		 793
794 if (info->attrs[NL80211_ATTR_KEY])
795 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
796 else
797 err = nl80211_parse_key_old(info, k);
798
799 if (err)
800 return err;
801
802 if (k->def && k->defmgmt)
803 return -EINVAL;
804
dbd2fd65
JB		 805 if (k->defmgmt) {
806 if (k->def_uni || !k->def_multi)
807 return -EINVAL;
808 }
809
b9454e83
JB		 810 if (k->idx != -1) {
811 if (k->defmgmt) {
812 if (k->idx < 4 || k->idx > 5)
813 return -EINVAL;
814 } else if (k->def) {
815 if (k->idx < 0 || k->idx > 3)
816 return -EINVAL;
817 } else {
818 if (k->idx < 0 || k->idx > 5)
819 return -EINVAL;
820 }
821 }
822
823 return 0;
824}
825
fffd0934
JB		 826static struct cfg80211_cached_keys *
827nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 828 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 829{
830 struct key_parse parse;
831 struct nlattr *key;
832 struct cfg80211_cached_keys *result;
833 int rem, err, def = 0;
834
835 result = kzalloc(sizeof(*result), GFP_KERNEL);
836 if (!result)
837 return ERR_PTR(-ENOMEM);
838
839 result->def = -1;
840 result->defmgmt = -1;
841
842 nla_for_each_nested(key, keys, rem) {
843 memset(&parse, 0, sizeof(parse));
844 parse.idx = -1;
845
846 err = nl80211_parse_key_new(key, &parse);
847 if (err)
848 goto error;
849 err = -EINVAL;
850 if (!parse.p.key)
851 goto error;
852 if (parse.idx < 0 || parse.idx > 4)
853 goto error;
854 if (parse.def) {
855 if (def)
856 goto error;
857 def = 1;
858 result->def = parse.idx;
dbd2fd65
JB		 859 if (!parse.def_uni || !parse.def_multi)
860 goto error;
fffd0934
JB		 861 } else if (parse.defmgmt)
862 goto error;
863 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 864 parse.idx, false, NULL);
fffd0934
JB		 865 if (err)
866 goto error;
867 result->params[parse.idx].cipher = parse.p.cipher;
868 result->params[parse.idx].key_len = parse.p.key_len;
869 result->params[parse.idx].key = result->data[parse.idx];
870 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 871
872 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
873 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
874 if (no_ht)
875 *no_ht = true;
876 }
fffd0934
JB		 877 }
878
879 return result;
880 error:
881 kfree(result);
882 return ERR_PTR(err);
883}
884
885static int nl80211_key_allowed(struct wireless_dev *wdev)
886{
887 ASSERT_WDEV_LOCK(wdev);
888
fffd0934
JB		 889 switch (wdev->iftype) {
890 case NL80211_IFTYPE_AP:
891 case NL80211_IFTYPE_AP_VLAN:
074ac8df 892 case NL80211_IFTYPE_P2P_GO:
ff973af7 893 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 894 break;
895 case NL80211_IFTYPE_ADHOC:
fffd0934 896 case NL80211_IFTYPE_STATION:
074ac8df 897 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 898 if (!wdev->current_bss)
fffd0934
JB		 899 return -ENOLINK;
900 break;
de4fcbad 901 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 902 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 903 case NL80211_IFTYPE_MONITOR:
904 case NL80211_IFTYPE_P2P_DEVICE:
905 case NL80211_IFTYPE_WDS:
906 case NUM_NL80211_IFTYPES:
fffd0934
JB		 907 return -EINVAL;
908 }
909
910 return 0;
911}
912
664834de
JM		 913static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
914 struct nlattr *tb)
915{
916 struct ieee80211_channel *chan;
917
918 if (tb == NULL)
919 return NULL;
920 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
921 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
922 return NULL;
923 return chan;
924}
925
7527a782
JB		 926static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
927{
928 struct nlattr *nl_modes = nla_nest_start(msg, attr);
929 int i;
930
931 if (!nl_modes)
932 goto nla_put_failure;
933
934 i = 0;
935 while (ifmodes) {
9360ffd1
DM		 936 if ((ifmodes & 1) && nla_put_flag(msg, i))
937 goto nla_put_failure;
7527a782
JB		 938 ifmodes >>= 1;
939 i++;
940 }
941
942 nla_nest_end(msg, nl_modes);
943 return 0;
944
945nla_put_failure:
946 return -ENOBUFS;
947}
948
949static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 950 struct sk_buff *msg,
951 bool large)
7527a782
JB		 952{
953 struct nlattr *nl_combis;
954 int i, j;
955
956 nl_combis = nla_nest_start(msg,
957 NL80211_ATTR_INTERFACE_COMBINATIONS);
958 if (!nl_combis)
959 goto nla_put_failure;
960
961 for (i = 0; i < wiphy->n_iface_combinations; i++) {
962 const struct ieee80211_iface_combination *c;
963 struct nlattr *nl_combi, *nl_limits;
964
965 c = &wiphy->iface_combinations[i];
966
967 nl_combi = nla_nest_start(msg, i + 1);
968 if (!nl_combi)
969 goto nla_put_failure;
970
971 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
972 if (!nl_limits)
973 goto nla_put_failure;
974
975 for (j = 0; j < c->n_limits; j++) {
976 struct nlattr *nl_limit;
977
978 nl_limit = nla_nest_start(msg, j + 1);
979 if (!nl_limit)
980 goto nla_put_failure;
9360ffd1
DM		 981 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
982 c->limits[j].max))
983 goto nla_put_failure;
7527a782
JB		 984 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
985 c->limits[j].types))
986 goto nla_put_failure;
987 nla_nest_end(msg, nl_limit);
988 }
989
990 nla_nest_end(msg, nl_limits);
991
9360ffd1
DM		 992 if (c->beacon_int_infra_match &&
993 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
994 goto nla_put_failure;
995 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
996 c->num_different_channels) ||
997 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
998 c->max_interfaces))
999 goto nla_put_failure;
cdc89b97 1000 if (large &&
8c48b50a
FF		 1001 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1002 c->radar_detect_widths) ||
1003 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1004 c->radar_detect_regions)))
cdc89b97 1005 goto nla_put_failure;
7527a782
JB		 1006
1007 nla_nest_end(msg, nl_combi);
1008 }
1009
1010 nla_nest_end(msg, nl_combis);
1011
1012 return 0;
1013nla_put_failure:
1014 return -ENOBUFS;
1015}
1016
3713b4e3 1017#ifdef CONFIG_PM
b56cf720
JB		 1018static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1019 struct sk_buff *msg)
1020{
964dc9e2 1021 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1022 struct nlattr *nl_tcp;
1023
1024 if (!tcp)
1025 return 0;
1026
1027 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1028 if (!nl_tcp)
1029 return -ENOBUFS;
1030
1031 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1032 tcp->data_payload_max))
1033 return -ENOBUFS;
1034
1035 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1036 tcp->data_payload_max))
1037 return -ENOBUFS;
1038
1039 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1040 return -ENOBUFS;
1041
1042 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1043 sizeof(*tcp->tok), tcp->tok))
1044 return -ENOBUFS;
1045
1046 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1047 tcp->data_interval_max))
1048 return -ENOBUFS;
1049
1050 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1051 tcp->wake_payload_max))
1052 return -ENOBUFS;
1053
1054 nla_nest_end(msg, nl_tcp);
1055 return 0;
1056}
1057
3713b4e3 1058static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1059 struct cfg80211_registered_device *rdev,
b56cf720 1060 bool large)
55682965 1061{
3713b4e3 1062 struct nlattr *nl_wowlan;
55682965 1063
1b8ec87a 1064 if (!rdev->wiphy.wowlan)
3713b4e3 1065 return 0;
55682965 1066
3713b4e3
JB		 1067 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1068 if (!nl_wowlan)
1069 return -ENOBUFS;
9360ffd1 1070
1b8ec87a 1071 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1075 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1076 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1077 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1079 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1080 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1081 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1082 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1083 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1084 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1085 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1086 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1087 return -ENOBUFS;
9360ffd1 1088
1b8ec87a 1089 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1090 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1091 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1092 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1093 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1094 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1095 };
9360ffd1 1096
3713b4e3
JB		 1097 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1098 sizeof(pat), &pat))
1099 return -ENOBUFS;
1100 }
9360ffd1 1101
75453ccb
LC		 1102 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1103 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1104 rdev->wiphy.wowlan->max_nd_match_sets))
1105 return -ENOBUFS;
1106
1b8ec87a 1107 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1108 return -ENOBUFS;
1109
3713b4e3 1110 nla_nest_end(msg, nl_wowlan);
9360ffd1 1111
3713b4e3
JB		 1112 return 0;
1113}
1114#endif
9360ffd1 1115
be29b99a 1116static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1117 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1118{
1119 struct nl80211_coalesce_rule_support rule;
1120
1b8ec87a 1121 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1122 return 0;
1123
1b8ec87a
ZG		 1124 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1125 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1126 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1127 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1128 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1129 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1130
1131 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1132 return -ENOBUFS;
1133
1134 return 0;
1135}
1136
3713b4e3
JB		 1137static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1138 struct ieee80211_supported_band *sband)
1139{
1140 struct nlattr *nl_rates, *nl_rate;
1141 struct ieee80211_rate *rate;
1142 int i;
87bbbe22 1143
3713b4e3
JB		 1144 /* add HT info */
1145 if (sband->ht_cap.ht_supported &&
1146 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1147 sizeof(sband->ht_cap.mcs),
1148 &sband->ht_cap.mcs) ||
1149 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1150 sband->ht_cap.cap) ||
1151 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1152 sband->ht_cap.ampdu_factor) ||
1153 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1154 sband->ht_cap.ampdu_density)))
1155 return -ENOBUFS;
afe0cbf8 1156
3713b4e3
JB		 1157 /* add VHT info */
1158 if (sband->vht_cap.vht_supported &&
1159 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1160 sizeof(sband->vht_cap.vht_mcs),
1161 &sband->vht_cap.vht_mcs) ||
1162 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1163 sband->vht_cap.cap)))
1164 return -ENOBUFS;
f59ac048 1165
3713b4e3
JB		 1166 /* add bitrates */
1167 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1168 if (!nl_rates)
1169 return -ENOBUFS;
ee688b00 1170
3713b4e3
JB		 1171 for (i = 0; i < sband->n_bitrates; i++) {
1172 nl_rate = nla_nest_start(msg, i);
1173 if (!nl_rate)
1174 return -ENOBUFS;
ee688b00 1175
3713b4e3
JB		 1176 rate = &sband->bitrates[i];
1177 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1178 rate->bitrate))
1179 return -ENOBUFS;
1180 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1181 nla_put_flag(msg,
1182 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1183 return -ENOBUFS;
ee688b00 1184
3713b4e3
JB		 1185 nla_nest_end(msg, nl_rate);
1186 }
d51626df 1187
3713b4e3 1188 nla_nest_end(msg, nl_rates);
bf0c111e 1189
3713b4e3
JB		 1190 return 0;
1191}
ee688b00 1192
3713b4e3
JB		 1193static int
1194nl80211_send_mgmt_stypes(struct sk_buff *msg,
1195 const struct ieee80211_txrx_stypes *mgmt_stypes)
1196{
1197 u16 stypes;
1198 struct nlattr *nl_ftypes, *nl_ifs;
1199 enum nl80211_iftype ift;
1200 int i;
ee688b00 1201
3713b4e3
JB		 1202 if (!mgmt_stypes)
1203 return 0;
5dab3b8a 1204
3713b4e3
JB		 1205 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1206 if (!nl_ifs)
1207 return -ENOBUFS;
e2f367f2 1208
3713b4e3
JB		 1209 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1210 nl_ftypes = nla_nest_start(msg, ift);
1211 if (!nl_ftypes)
1212 return -ENOBUFS;
1213 i = 0;
1214 stypes = mgmt_stypes[ift].tx;
1215 while (stypes) {
1216 if ((stypes & 1) &&
1217 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1218 (i << 4) | IEEE80211_FTYPE_MGMT))
1219 return -ENOBUFS;
1220 stypes >>= 1;
1221 i++;
ee688b00 1222 }
3713b4e3
JB		 1223 nla_nest_end(msg, nl_ftypes);
1224 }
ee688b00 1225
3713b4e3 1226 nla_nest_end(msg, nl_ifs);
ee688b00 1227
3713b4e3
JB		 1228 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1229 if (!nl_ifs)
1230 return -ENOBUFS;
ee688b00 1231
3713b4e3
JB		 1232 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1233 nl_ftypes = nla_nest_start(msg, ift);
1234 if (!nl_ftypes)
1235 return -ENOBUFS;
1236 i = 0;
1237 stypes = mgmt_stypes[ift].rx;
1238 while (stypes) {
1239 if ((stypes & 1) &&
1240 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1241 (i << 4) | IEEE80211_FTYPE_MGMT))
1242 return -ENOBUFS;
1243 stypes >>= 1;
1244 i++;
1245 }
1246 nla_nest_end(msg, nl_ftypes);
1247 }
1248 nla_nest_end(msg, nl_ifs);
ee688b00 1249
3713b4e3
JB		 1250 return 0;
1251}
ee688b00 1252
86e8cf98
JB		 1253struct nl80211_dump_wiphy_state {
1254 s64 filter_wiphy;
1255 long start;
1256 long split_start, band_start, chan_start;
1257 bool split;
1258};
1259
1b8ec87a 1260static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1261 enum nl80211_commands cmd,
3713b4e3 1262 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1263 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1264{
1265 void *hdr;
1266 struct nlattr *nl_bands, *nl_band;
1267 struct nlattr *nl_freqs, *nl_freq;
1268 struct nlattr *nl_cmds;
1269 enum ieee80211_band band;
1270 struct ieee80211_channel *chan;
1271 int i;
1272 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1273 rdev->wiphy.mgmt_stypes;
fe1abafd 1274 u32 features;
ee688b00 1275
3bb20556 1276 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1277 if (!hdr)
1278 return -ENOBUFS;
ee688b00 1279
86e8cf98
JB		 1280 if (WARN_ON(!state))
1281 return -EINVAL;
ee688b00 1282
1b8ec87a 1283 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1284 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1285 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1286 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1287 cfg80211_rdev_list_generation))
8fdc621d
JB		 1288 goto nla_put_failure;
1289
3bb20556
JB		 1290 if (cmd != NL80211_CMD_NEW_WIPHY)
1291 goto finish;
1292
86e8cf98 1293 switch (state->split_start) {
3713b4e3
JB		 1294 case 0:
1295 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1296 rdev->wiphy.retry_short) ||
3713b4e3 1297 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1298 rdev->wiphy.retry_long) ||
3713b4e3 1299 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1300 rdev->wiphy.frag_threshold) ||
3713b4e3 1301 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1302 rdev->wiphy.rts_threshold) ||
3713b4e3 1303 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1304 rdev->wiphy.coverage_class) ||
3713b4e3 1305 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1306 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1307 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1308 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1309 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1310 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1311 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1312 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1313 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1314 rdev->wiphy.max_match_sets) ||
1315 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1316 rdev->wiphy.max_sched_scan_plans) ||
1317 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1318 rdev->wiphy.max_sched_scan_plan_interval) ||
1319 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1320 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1321 goto nla_put_failure;
3713b4e3 1322
1b8ec87a 1323 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1324 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1325 goto nla_put_failure;
1b8ec87a 1326 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1327 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1328 goto nla_put_failure;
1b8ec87a 1329 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1330 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1331 goto nla_put_failure;
1b8ec87a 1332 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1333 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1334 goto nla_put_failure;
1b8ec87a 1335 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1336 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1337 goto nla_put_failure;
1b8ec87a 1338 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1339 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1340 goto nla_put_failure;
86e8cf98
JB		 1341 state->split_start++;
1342 if (state->split)
3713b4e3
JB		 1343 break;
1344 case 1:
1345 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1346 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1347 rdev->wiphy.cipher_suites))
3713b4e3 1348 goto nla_put_failure;
4745fc09 1349
3713b4e3 1350 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1351 rdev->wiphy.max_num_pmkids))
3713b4e3 1352 goto nla_put_failure;
b23aa676 1353
1b8ec87a 1354 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1355 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1356 goto nla_put_failure;
b23aa676 1357
3713b4e3 1358 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1359 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1360 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1361 rdev->wiphy.available_antennas_rx))
9360ffd1 1362 goto nla_put_failure;
b23aa676 1363
1b8ec87a 1364 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1365 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1366 rdev->wiphy.probe_resp_offload))
3713b4e3 1367 goto nla_put_failure;
8fdc621d 1368
1b8ec87a
ZG		 1369 if ((rdev->wiphy.available_antennas_tx ||
1370 rdev->wiphy.available_antennas_rx) &&
1371 rdev->ops->get_antenna) {
3713b4e3
JB		 1372 u32 tx_ant = 0, rx_ant = 0;
1373 int res;
1b8ec87a 1374 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1375 if (!res) {
1376 if (nla_put_u32(msg,
1377 NL80211_ATTR_WIPHY_ANTENNA_TX,
1378 tx_ant) ||
1379 nla_put_u32(msg,
1380 NL80211_ATTR_WIPHY_ANTENNA_RX,
1381 rx_ant))
1382 goto nla_put_failure;
1383 }
1384 }
a293911d 1385
86e8cf98
JB		 1386 state->split_start++;
1387 if (state->split)
3713b4e3
JB		 1388 break;
1389 case 2:
1390 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1391 rdev->wiphy.interface_modes))
3713b4e3 1392 goto nla_put_failure;
86e8cf98
JB		 1393 state->split_start++;
1394 if (state->split)
3713b4e3
JB		 1395 break;
1396 case 3:
1397 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1398 if (!nl_bands)
1399 goto nla_put_failure;
f7ca38df 1400
86e8cf98
JB		 1401 for (band = state->band_start;
1402 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1403 struct ieee80211_supported_band *sband;
2e161f78 1404
1b8ec87a 1405 sband = rdev->wiphy.bands[band];
2e161f78 1406
3713b4e3
JB		 1407 if (!sband)
1408 continue;
1409
1410 nl_band = nla_nest_start(msg, band);
1411 if (!nl_band)
2e161f78 1412 goto nla_put_failure;
3713b4e3 1413
86e8cf98 1414 switch (state->chan_start) {
3713b4e3
JB		 1415 case 0:
1416 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1417 goto nla_put_failure;
86e8cf98
JB		 1418 state->chan_start++;
1419 if (state->split)
3713b4e3
JB		 1420 break;
1421 default:
1422 /* add frequencies */
1423 nl_freqs = nla_nest_start(
1424 msg, NL80211_BAND_ATTR_FREQS);
1425 if (!nl_freqs)
1426 goto nla_put_failure;
1427
86e8cf98 1428 for (i = state->chan_start - 1;
3713b4e3
JB		 1429 i < sband->n_channels;
1430 i++) {
1431 nl_freq = nla_nest_start(msg, i);
1432 if (!nl_freq)
1433 goto nla_put_failure;
1434
1435 chan = &sband->channels[i];
1436
86e8cf98
JB		 1437 if (nl80211_msg_put_channel(
1438 msg, chan,
1439 state->split))
3713b4e3
JB		 1440 goto nla_put_failure;
1441
1442 nla_nest_end(msg, nl_freq);
86e8cf98 1443 if (state->split)
3713b4e3
JB		 1444 break;
1445 }
1446 if (i < sband->n_channels)
86e8cf98 1447 state->chan_start = i + 2;
3713b4e3 1448 else
86e8cf98 1449 state->chan_start = 0;
3713b4e3
JB		 1450 nla_nest_end(msg, nl_freqs);
1451 }
1452
1453 nla_nest_end(msg, nl_band);
1454
86e8cf98 1455 if (state->split) {
3713b4e3 1456 /* start again here */
86e8cf98 1457 if (state->chan_start)
3713b4e3
JB		 1458 band--;
1459 break;
2e161f78 1460 }
2e161f78 1461 }
3713b4e3 1462 nla_nest_end(msg, nl_bands);
2e161f78 1463
3713b4e3 1464 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1465 state->band_start = band + 1;
3713b4e3 1466 else
86e8cf98 1467 state->band_start = 0;
74b70a4e 1468
3713b4e3 1469 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1470 if (state->band_start == 0 && state->chan_start == 0)
1471 state->split_start++;
1472 if (state->split)
3713b4e3
JB		 1473 break;
1474 case 4:
1475 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1476 if (!nl_cmds)
2e161f78
JB		 1477 goto nla_put_failure;
1478
3713b4e3
JB		 1479 i = 0;
1480#define CMD(op, n) \
1481 do { \
1b8ec87a 1482 if (rdev->ops->op) { \
3713b4e3
JB		 1483 i++; \
1484 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1485 goto nla_put_failure; \
1486 } \
1487 } while (0)
1488
1489 CMD(add_virtual_intf, NEW_INTERFACE);
1490 CMD(change_virtual_intf, SET_INTERFACE);
1491 CMD(add_key, NEW_KEY);
1492 CMD(start_ap, START_AP);
1493 CMD(add_station, NEW_STATION);
1494 CMD(add_mpath, NEW_MPATH);
1495 CMD(update_mesh_config, SET_MESH_CONFIG);
1496 CMD(change_bss, SET_BSS);
1497 CMD(auth, AUTHENTICATE);
1498 CMD(assoc, ASSOCIATE);
1499 CMD(deauth, DEAUTHENTICATE);
1500 CMD(disassoc, DISASSOCIATE);
1501 CMD(join_ibss, JOIN_IBSS);
1502 CMD(join_mesh, JOIN_MESH);
1503 CMD(set_pmksa, SET_PMKSA);
1504 CMD(del_pmksa, DEL_PMKSA);
1505 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1506 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1507 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1508 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1509 CMD(mgmt_tx, FRAME);
1510 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1511 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1512 i++;
1513 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1514 goto nla_put_failure;
2e161f78 1515 }
1b8ec87a
ZG		 1516 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1517 rdev->ops->join_mesh) {
3713b4e3
JB		 1518 i++;
1519 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1520 goto nla_put_failure;
1521 }
1522 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1523 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1524 CMD(tdls_mgmt, TDLS_MGMT);
1525 CMD(tdls_oper, TDLS_OPER);
1526 }
1b8ec87a 1527 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1528 CMD(sched_scan_start, START_SCHED_SCAN);
1529 CMD(probe_client, PROBE_CLIENT);
1530 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1531 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1532 i++;
1533 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1534 goto nla_put_failure;
1535 }
1536 CMD(start_p2p_device, START_P2P_DEVICE);
1537 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1538#ifdef CONFIG_NL80211_TESTMODE
1539 CMD(testmode_cmd, TESTMODE);
1540#endif
86e8cf98 1541 if (state->split) {
5de17984
AS		 1542 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1543 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1544 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1545 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1546 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1547 if (rdev->wiphy.features &
1548 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1549 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1550 }
02df00eb 1551 /* add into the if now */
3713b4e3 1552#undef CMD
ff1b6e69 1553
1b8ec87a 1554 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1555 i++;
1556 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1557 goto nla_put_failure;
ff1b6e69
JB		 1558 }
1559
1b8ec87a 1560 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1561 i++;
1562 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1563 goto nla_put_failure;
1564 }
1565
1566 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1567 state->split_start++;
1568 if (state->split)
3713b4e3
JB		 1569 break;
1570 case 5:
1b8ec87a
ZG		 1571 if (rdev->ops->remain_on_channel &&
1572 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1573 nla_put_u32(msg,
1574 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1575 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1576 goto nla_put_failure;
1577
1b8ec87a 1578 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1579 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1580 goto nla_put_failure;
1581
1582 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1583 goto nla_put_failure;
86e8cf98
JB		 1584 state->split_start++;
1585 if (state->split)
3713b4e3
JB		 1586 break;
1587 case 6:
1588#ifdef CONFIG_PM
1b8ec87a 1589 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1590 goto nla_put_failure;
86e8cf98
JB		 1591 state->split_start++;
1592 if (state->split)
3713b4e3
JB		 1593 break;
1594#else
86e8cf98 1595 state->split_start++;
dfb89c56 1596#endif
3713b4e3
JB		 1597 case 7:
1598 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1599 rdev->wiphy.software_iftypes))
3713b4e3 1600 goto nla_put_failure;
ff1b6e69 1601
1b8ec87a 1602 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1603 state->split))
3713b4e3 1604 goto nla_put_failure;
7527a782 1605
86e8cf98
JB		 1606 state->split_start++;
1607 if (state->split)
3713b4e3
JB		 1608 break;
1609 case 8:
1b8ec87a 1610 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1611 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1612 rdev->wiphy.ap_sme_capa))
3713b4e3 1613 goto nla_put_failure;
7527a782 1614
1b8ec87a 1615 features = rdev->wiphy.features;
fe1abafd
JB		 1616 /*
1617 * We can only add the per-channel limit information if the
1618 * dump is split, otherwise it makes it too big. Therefore
1619 * only advertise it in that case.
1620 */
86e8cf98 1621 if (state->split)
fe1abafd
JB		 1622 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1623 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1624 goto nla_put_failure;
562a7480 1625
1b8ec87a 1626 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1627 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1628 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1629 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1630 goto nla_put_failure;
1f074bd8 1631
1b8ec87a
ZG		 1632 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1633 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1634 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1635 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1636 goto nla_put_failure;
7e7c8926 1637
3713b4e3
JB		 1638 /*
1639 * Any information below this point is only available to
1640 * applications that can deal with it being split. This
1641 * helps ensure that newly added capabilities don't break
1642 * older tools by overrunning their buffers.
1643 *
1644 * We still increment split_start so that in the split
1645 * case we'll continue with more data in the next round,
1646 * but break unconditionally so unsplit data stops here.
1647 */
86e8cf98 1648 state->split_start++;
3713b4e3
JB		 1649 break;
1650 case 9:
1b8ec87a 1651 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1652 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1653 rdev->wiphy.extended_capabilities_len,
1654 rdev->wiphy.extended_capabilities) ||
fe1abafd 1655 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1656 rdev->wiphy.extended_capabilities_len,
1657 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1658 goto nla_put_failure;
a50df0c4 1659
1b8ec87a 1660 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1661 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1662 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1663 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1664 goto nla_put_failure;
1665
be29b99a
AK		 1666 state->split_start++;
1667 break;
1668 case 10:
1b8ec87a 1669 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1670 goto nla_put_failure;
1671
1b8ec87a 1672 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1673 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1674 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1675 goto nla_put_failure;
b43504cf 1676
1b8ec87a 1677 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1678 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1679 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1680 goto nla_put_failure;
1681
ad7e718c
JB		 1682 state->split_start++;
1683 break;
1684 case 11:
1b8ec87a 1685 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1686 const struct nl80211_vendor_cmd_info *info;
1687 struct nlattr *nested;
1688
1689 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1690 if (!nested)
1691 goto nla_put_failure;
1692
1b8ec87a
ZG		 1693 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1694 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1695 if (nla_put(msg, i + 1, sizeof(*info), info))
1696 goto nla_put_failure;
1697 }
1698 nla_nest_end(msg, nested);
1699 }
1700
1b8ec87a 1701 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1702 const struct nl80211_vendor_cmd_info *info;
1703 struct nlattr *nested;
ad7e718c 1704
567ffc35
JB		 1705 nested = nla_nest_start(msg,
1706 NL80211_ATTR_VENDOR_EVENTS);
1707 if (!nested)
ad7e718c 1708 goto nla_put_failure;
567ffc35 1709
1b8ec87a
ZG		 1710 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1711 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1712 if (nla_put(msg, i + 1, sizeof(*info), info))
1713 goto nla_put_failure;
1714 }
1715 nla_nest_end(msg, nested);
1716 }
9a774c78
AO		 1717 state->split_start++;
1718 break;
1719 case 12:
1720 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1721 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1722 rdev->wiphy.max_num_csa_counters))
1723 goto nla_put_failure;
01e0daa4 1724
1bdd716c
AN		 1725 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1726 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1727 goto nla_put_failure;
1728
d75bb06b
GKS		 1729 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1730 sizeof(rdev->wiphy.ext_features),
1731 rdev->wiphy.ext_features))
1732 goto nla_put_failure;
1733
3713b4e3 1734 /* done */
86e8cf98 1735 state->split_start = 0;
3713b4e3
JB		 1736 break;
1737 }
3bb20556 1738 finish:
053c095a
JB		 1739 genlmsg_end(msg, hdr);
1740 return 0;
55682965
JB		 1741
1742 nla_put_failure:
bc3ed28c
TG		 1743 genlmsg_cancel(msg, hdr);
1744 return -EMSGSIZE;
55682965
JB		 1745}
1746
86e8cf98
JB		 1747static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1748 struct netlink_callback *cb,
1749 struct nl80211_dump_wiphy_state *state)
1750{
1751 struct nlattr **tb = nl80211_fam.attrbuf;
1752 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1753 tb, nl80211_fam.maxattr, nl80211_policy);
1754 /* ignore parse errors for backward compatibility */
1755 if (ret)
1756 return 0;
1757
1758 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1759 if (tb[NL80211_ATTR_WIPHY])
1760 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1761 if (tb[NL80211_ATTR_WDEV])
1762 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1763 if (tb[NL80211_ATTR_IFINDEX]) {
1764 struct net_device *netdev;
1765 struct cfg80211_registered_device *rdev;
1766 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1767
7f2b8562 1768 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1769 if (!netdev)
1770 return -ENODEV;
1771 if (netdev->ieee80211_ptr) {
f26cbf40 1772 rdev = wiphy_to_rdev(
86e8cf98
JB		 1773 netdev->ieee80211_ptr->wiphy);
1774 state->filter_wiphy = rdev->wiphy_idx;
1775 }
86e8cf98
JB		 1776 }
1777
1778 return 0;
1779}
1780
55682965
JB		 1781static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1782{
645e77de 1783 int idx = 0, ret;
86e8cf98 1784 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1785 struct cfg80211_registered_device *rdev;
3a5a423b 1786
5fe231e8 1787 rtnl_lock();
86e8cf98
JB		 1788 if (!state) {
1789 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1790 if (!state) {
1791 rtnl_unlock();
86e8cf98 1792 return -ENOMEM;
3713b4e3 1793 }
86e8cf98
JB		 1794 state->filter_wiphy = -1;
1795 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1796 if (ret) {
1797 kfree(state);
1798 rtnl_unlock();
1799 return ret;
3713b4e3 1800 }
86e8cf98 1801 cb->args[0] = (long)state;
3713b4e3
JB		 1802 }
1803
1b8ec87a
ZG		 1804 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1805 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1806 continue;
86e8cf98 1807 if (++idx <= state->start)
55682965 1808 continue;
86e8cf98 1809 if (state->filter_wiphy != -1 &&
1b8ec87a 1810 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1811 continue;
1812 /* attempt to fit multiple wiphy data chunks into the skb */
1813 do {
3bb20556
JB		 1814 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1815 skb,
3713b4e3
JB		 1816 NETLINK_CB(cb->skb).portid,
1817 cb->nlh->nlmsg_seq,
86e8cf98 1818 NLM_F_MULTI, state);
3713b4e3
JB		 1819 if (ret < 0) {
1820 /*
1821 * If sending the wiphy data didn't fit (ENOBUFS
1822 * or EMSGSIZE returned), this SKB is still
1823 * empty (so it's not too big because another
1824 * wiphy dataset is already in the skb) and
1825 * we've not tried to adjust the dump allocation
1826 * yet ... then adjust the alloc size to be
1827 * bigger, and return 1 but with the empty skb.
1828 * This results in an empty message being RX'ed
1829 * in userspace, but that is ignored.
1830 *
1831 * We can then retry with the larger buffer.
1832 */
1833 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1834 !skb->len && !state->split &&
3713b4e3
JB		 1835 cb->min_dump_alloc < 4096) {
1836 cb->min_dump_alloc = 4096;
f12cb289 1837 state->split_start = 0;
d98cae64 1838 rtnl_unlock();
3713b4e3
JB		 1839 return 1;
1840 }
1841 idx--;
1842 break;
645e77de 1843 }
86e8cf98 1844 } while (state->split_start > 0);
3713b4e3 1845 break;
55682965 1846 }
5fe231e8 1847 rtnl_unlock();
55682965 1848
86e8cf98 1849 state->start = idx;
55682965
JB		 1850
1851 return skb->len;
1852}
1853
86e8cf98
JB		 1854static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1855{
1856 kfree((void *)cb->args[0]);
1857 return 0;
1858}
1859
55682965
JB		 1860static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1861{
1862 struct sk_buff *msg;
1b8ec87a 1863 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1864 struct nl80211_dump_wiphy_state state = {};
55682965 1865
645e77de 1866 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1867 if (!msg)
4c476991 1868 return -ENOMEM;
55682965 1869
3bb20556
JB		 1870 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1871 info->snd_portid, info->snd_seq, 0,
86e8cf98 1872 &state) < 0) {
4c476991
JB		 1873 nlmsg_free(msg);
1874 return -ENOBUFS;
1875 }
55682965 1876
134e6375 1877 return genlmsg_reply(msg, info);
55682965
JB		 1878}
1879
31888487
JM		 1880static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1881 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1882 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1883 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1884 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1885 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1886};
1887
1888static int parse_txq_params(struct nlattr *tb[],
1889 struct ieee80211_txq_params *txq_params)
1890{
a3304b0a 1891 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1892 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1893 !tb[NL80211_TXQ_ATTR_AIFS])
1894 return -EINVAL;
1895
a3304b0a 1896 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1897 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1898 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1899 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1900 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1901
a3304b0a
JB		 1902 if (txq_params->ac >= NL80211_NUM_ACS)
1903 return -EINVAL;
1904
31888487
JM		 1905 return 0;
1906}
1907
f444de05
JB		 1908static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1909{
1910 /*
cc1d2806
JB		 1911 * You can only set the channel explicitly for WDS interfaces,
1912 * all others have their channel managed via their respective
1913 * "establish a connection" command (connect, join, ...)
1914 *
1915 * For AP/GO and mesh mode, the channel can be set with the
1916 * channel userspace API, but is only stored and passed to the
1917 * low-level driver when the AP starts or the mesh is joined.
1918 * This is for backward compatibility, userspace can also give
1919 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1920 *
1921 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1922 * whatever else is going on, so they have their own special
1923 * operation to set the monitor channel if possible.
f444de05
JB		 1924 */
1925 return !wdev ||
1926 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1927 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1928 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1929 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1930}
1931
683b6d3b
JB		 1932static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1933 struct genl_info *info,
1934 struct cfg80211_chan_def *chandef)
1935{
dbeca2ea 1936 u32 control_freq;
683b6d3b
JB		 1937
1938 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1939 return -EINVAL;
1940
1941 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1942
1943 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1944 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1945 chandef->center_freq1 = control_freq;
1946 chandef->center_freq2 = 0;
683b6d3b
JB		 1947
1948 /* Primary channel not allowed */
1949 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1950 return -EINVAL;
1951
3d9d1d66
JB		 1952 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1953 enum nl80211_channel_type chantype;
1954
1955 chantype = nla_get_u32(
1956 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1957
1958 switch (chantype) {
1959 case NL80211_CHAN_NO_HT:
1960 case NL80211_CHAN_HT20:
1961 case NL80211_CHAN_HT40PLUS:
1962 case NL80211_CHAN_HT40MINUS:
1963 cfg80211_chandef_create(chandef, chandef->chan,
1964 chantype);
1965 break;
1966 default:
1967 return -EINVAL;
1968 }
1969 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1970 chandef->width =
1971 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1972 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1973 chandef->center_freq1 =
1974 nla_get_u32(
1975 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1976 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1977 chandef->center_freq2 =
1978 nla_get_u32(
1979 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1980 }
1981
9f5e8f6e 1982 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1983 return -EINVAL;
1984
9f5e8f6e
JB		 1985 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1986 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1987 return -EINVAL;
1988
2f301ab2
SW		 1989 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1990 chandef->width == NL80211_CHAN_WIDTH_10) &&
1991 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1992 return -EINVAL;
1993
683b6d3b
JB		 1994 return 0;
1995}
1996
f444de05 1997static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1998 struct net_device *dev,
f444de05
JB		 1999 struct genl_info *info)
2000{
683b6d3b 2001 struct cfg80211_chan_def chandef;
f444de05 2002 int result;
e8c9bd5b 2003 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2004 struct wireless_dev *wdev = NULL;
e8c9bd5b 2005
e16821bc
JM		 2006 if (dev)
2007 wdev = dev->ieee80211_ptr;
f444de05
JB		 2008 if (!nl80211_can_set_dev_channel(wdev))
2009 return -EOPNOTSUPP;
e16821bc
JM		 2010 if (wdev)
2011 iftype = wdev->iftype;
f444de05 2012
683b6d3b
JB		 2013 result = nl80211_parse_chandef(rdev, info, &chandef);
2014 if (result)
2015 return result;
f444de05 2016
e8c9bd5b 2017 switch (iftype) {
aa430da4
JB		 2018 case NL80211_IFTYPE_AP:
2019 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2020 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2021 iftype)) {
aa430da4
JB		 2022 result = -EINVAL;
2023 break;
2024 }
e16821bc
JM		 2025 if (wdev->beacon_interval) {
2026 if (!dev || !rdev->ops->set_ap_chanwidth ||
2027 !(rdev->wiphy.features &
2028 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2029 result = -EBUSY;
2030 break;
2031 }
2032
2033 /* Only allow dynamic channel width changes */
2034 if (chandef.chan != wdev->preset_chandef.chan) {
2035 result = -EBUSY;
2036 break;
2037 }
2038 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2039 if (result)
2040 break;
2041 }
683b6d3b 2042 wdev->preset_chandef = chandef;
aa430da4
JB		 2043 result = 0;
2044 break;
cc1d2806 2045 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2046 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2047 break;
e8c9bd5b 2048 case NL80211_IFTYPE_MONITOR:
683b6d3b 2049 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2050 break;
aa430da4 2051 default:
e8c9bd5b 2052 result = -EINVAL;
f444de05 2053 }
f444de05
JB		 2054
2055 return result;
2056}
2057
2058static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2059{
4c476991
JB		 2060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2061 struct net_device *netdev = info->user_ptr[1];
f444de05 2062
e16821bc 2063 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2064}
2065
e8347eba
BJ		 2066static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2067{
43b19952
JB		 2068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2069 struct net_device *dev = info->user_ptr[1];
2070 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2071 const u8 *bssid;
e8347eba
BJ		 2072
2073 if (!info->attrs[NL80211_ATTR_MAC])
2074 return -EINVAL;
2075
43b19952
JB		 2076 if (netif_running(dev))
2077 return -EBUSY;
e8347eba 2078
43b19952
JB		 2079 if (!rdev->ops->set_wds_peer)
2080 return -EOPNOTSUPP;
e8347eba 2081
43b19952
JB		 2082 if (wdev->iftype != NL80211_IFTYPE_WDS)
2083 return -EOPNOTSUPP;
e8347eba
BJ		 2084
2085 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2086 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2087}
2088
2089
55682965
JB		 2090static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2091{
2092 struct cfg80211_registered_device *rdev;
f444de05
JB		 2093 struct net_device *netdev = NULL;
2094 struct wireless_dev *wdev;
a1e567c8 2095 int result = 0, rem_txq_params = 0;
31888487 2096 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2097 u32 changed;
2098 u8 retry_short = 0, retry_long = 0;
2099 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2100 u8 coverage_class = 0;
55682965 2101
5fe231e8
JB		 2102 ASSERT_RTNL();
2103
f444de05
JB		 2104 /*
2105 * Try to find the wiphy and netdev. Normally this
2106 * function shouldn't need the netdev, but this is
2107 * done for backward compatibility -- previously
2108 * setting the channel was done per wiphy, but now
2109 * it is per netdev. Previous userland like hostapd
2110 * also passed a netdev to set_wiphy, so that it is
2111 * possible to let that go to the right netdev!
2112 */
4bbf4d56 2113
f444de05
JB		 2114 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2115 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2116
7f2b8562 2117 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2118 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2119 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2120 else
f444de05 2121 netdev = NULL;
4bbf4d56
JB		 2122 }
2123
f444de05 2124 if (!netdev) {
878d9ec7
JB		 2125 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2126 info->attrs);
5fe231e8 2127 if (IS_ERR(rdev))
4c476991 2128 return PTR_ERR(rdev);
f444de05
JB		 2129 wdev = NULL;
2130 netdev = NULL;
2131 result = 0;
71fe96bf 2132 } else
f444de05 2133 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2134
2135 /*
2136 * end workaround code, by now the rdev is available
2137 * and locked, and wdev may or may not be NULL.
2138 */
4bbf4d56
JB		 2139
2140 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2141 result = cfg80211_dev_rename(
2142 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2143
4bbf4d56 2144 if (result)
7f2b8562 2145 return result;
31888487
JM		 2146
2147 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2148 struct ieee80211_txq_params txq_params;
2149 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2150
7f2b8562
YX		 2151 if (!rdev->ops->set_txq_params)
2152 return -EOPNOTSUPP;
31888487 2153
7f2b8562
YX		 2154 if (!netdev)
2155 return -EINVAL;
f70f01c2 2156
133a3ff2 2157 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2158 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2159 return -EINVAL;
133a3ff2 2160
7f2b8562
YX		 2161 if (!netif_running(netdev))
2162 return -ENETDOWN;
2b5f8b0b 2163
31888487
JM		 2164 nla_for_each_nested(nl_txq_params,
2165 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2166 rem_txq_params) {
ae811e21
JB		 2167 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2168 nla_data(nl_txq_params),
2169 nla_len(nl_txq_params),
2170 txq_params_policy);
2171 if (result)
2172 return result;
31888487
JM		 2173 result = parse_txq_params(tb, &txq_params);
2174 if (result)
7f2b8562 2175 return result;
31888487 2176
e35e4d28
HG		 2177 result = rdev_set_txq_params(rdev, netdev,
2178 &txq_params);
31888487 2179 if (result)
7f2b8562 2180 return result;
31888487
JM		 2181 }
2182 }
55682965 2183
72bdcf34 2184 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2185 result = __nl80211_set_channel(
2186 rdev,
2187 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2188 info);
72bdcf34 2189 if (result)
7f2b8562 2190 return result;
72bdcf34
JM		 2191 }
2192
98d2ff8b 2193 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2194 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2195 enum nl80211_tx_power_setting type;
2196 int idx, mbm = 0;
2197
c8442118
JB		 2198 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2199 txp_wdev = NULL;
2200
7f2b8562
YX		 2201 if (!rdev->ops->set_tx_power)
2202 return -EOPNOTSUPP;
98d2ff8b
JO		 2203
2204 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2205 type = nla_get_u32(info->attrs[idx]);
2206
2207 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2208 (type != NL80211_TX_POWER_AUTOMATIC))
2209 return -EINVAL;
98d2ff8b
JO		 2210
2211 if (type != NL80211_TX_POWER_AUTOMATIC) {
2212 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2213 mbm = nla_get_u32(info->attrs[idx]);
2214 }
2215
c8442118 2216 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2217 if (result)
7f2b8562 2218 return result;
98d2ff8b
JO		 2219 }
2220
afe0cbf8
BR		 2221 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2222 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2223 u32 tx_ant, rx_ant;
7f531e03
BR		 2224 if ((!rdev->wiphy.available_antennas_tx &&
2225 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2226 !rdev->ops->set_antenna)
2227 return -EOPNOTSUPP;
afe0cbf8
BR		 2228
2229 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2230 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2231
a7ffac95 2232 /* reject antenna configurations which don't match the
7f531e03
BR		 2233 * available antenna masks, except for the "all" mask */
2234 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2235 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2236 return -EINVAL;
a7ffac95 2237
7f531e03
BR		 2238 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2239 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2240
e35e4d28 2241 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2242 if (result)
7f2b8562 2243 return result;
afe0cbf8
BR		 2244 }
2245
b9a5f8ca
JM		 2246 changed = 0;
2247
2248 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2249 retry_short = nla_get_u8(
2250 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2251 if (retry_short == 0)
2252 return -EINVAL;
2253
b9a5f8ca
JM		 2254 changed |= WIPHY_PARAM_RETRY_SHORT;
2255 }
2256
2257 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2258 retry_long = nla_get_u8(
2259 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2260 if (retry_long == 0)
2261 return -EINVAL;
2262
b9a5f8ca
JM		 2263 changed |= WIPHY_PARAM_RETRY_LONG;
2264 }
2265
2266 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2267 frag_threshold = nla_get_u32(
2268 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2269 if (frag_threshold < 256)
2270 return -EINVAL;
2271
b9a5f8ca
JM		 2272 if (frag_threshold != (u32) -1) {
2273 /*
2274 * Fragments (apart from the last one) are required to
2275 * have even length. Make the fragmentation code
2276 * simpler by stripping LSB should someone try to use
2277 * odd threshold value.
2278 */
2279 frag_threshold &= ~0x1;
2280 }
2281 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2282 }
2283
2284 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2285 rts_threshold = nla_get_u32(
2286 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2287 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2288 }
2289
81077e82 2290 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2291 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2292 return -EINVAL;
2293
81077e82
LT		 2294 coverage_class = nla_get_u8(
2295 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2296 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2297 }
2298
3057dbfd
LB		 2299 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2300 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2301 return -EOPNOTSUPP;
2302
2303 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2304 }
2305
b9a5f8ca
JM		 2306 if (changed) {
2307 u8 old_retry_short, old_retry_long;
2308 u32 old_frag_threshold, old_rts_threshold;
81077e82 2309 u8 old_coverage_class;
b9a5f8ca 2310
7f2b8562
YX		 2311 if (!rdev->ops->set_wiphy_params)
2312 return -EOPNOTSUPP;
b9a5f8ca
JM		 2313
2314 old_retry_short = rdev->wiphy.retry_short;
2315 old_retry_long = rdev->wiphy.retry_long;
2316 old_frag_threshold = rdev->wiphy.frag_threshold;
2317 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2318 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2319
2320 if (changed & WIPHY_PARAM_RETRY_SHORT)
2321 rdev->wiphy.retry_short = retry_short;
2322 if (changed & WIPHY_PARAM_RETRY_LONG)
2323 rdev->wiphy.retry_long = retry_long;
2324 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2325 rdev->wiphy.frag_threshold = frag_threshold;
2326 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2327 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2328 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2329 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2330
e35e4d28 2331 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2332 if (result) {
2333 rdev->wiphy.retry_short = old_retry_short;
2334 rdev->wiphy.retry_long = old_retry_long;
2335 rdev->wiphy.frag_threshold = old_frag_threshold;
2336 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2337 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2338 return result;
b9a5f8ca
JM		 2339 }
2340 }
7f2b8562 2341 return 0;
55682965
JB		 2342}
2343
71bbc994
JB		 2344static inline u64 wdev_id(struct wireless_dev *wdev)
2345{
2346 return (u64)wdev->identifier |
f26cbf40 2347 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2348}
55682965 2349
683b6d3b 2350static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2351 const struct cfg80211_chan_def *chandef)
683b6d3b 2352{
601555cd
JB		 2353 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2354 return -EINVAL;
3d9d1d66 2355
683b6d3b
JB		 2356 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2357 chandef->chan->center_freq))
2358 return -ENOBUFS;
3d9d1d66
JB		 2359 switch (chandef->width) {
2360 case NL80211_CHAN_WIDTH_20_NOHT:
2361 case NL80211_CHAN_WIDTH_20:
2362 case NL80211_CHAN_WIDTH_40:
2363 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2364 cfg80211_get_chandef_type(chandef)))
2365 return -ENOBUFS;
2366 break;
2367 default:
2368 break;
2369 }
2370 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2371 return -ENOBUFS;
2372 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2373 return -ENOBUFS;
2374 if (chandef->center_freq2 &&
2375 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2376 return -ENOBUFS;
2377 return 0;
2378}
2379
15e47304 2380static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2381 struct cfg80211_registered_device *rdev,
8f894be2 2382 struct wireless_dev *wdev, bool removal)
55682965 2383{
72fb2abc 2384 struct net_device *dev = wdev->netdev;
8f894be2 2385 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2386 void *hdr;
2387
8f894be2
TB		 2388 if (removal)
2389 cmd = NL80211_CMD_DEL_INTERFACE;
2390
2391 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2392 if (!hdr)
2393 return -1;
2394
72fb2abc
JB		 2395 if (dev &&
2396 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2397 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2398 goto nla_put_failure;
2399
2400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2401 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2402 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2403 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2404 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2405 rdev->devlist_generation ^
2406 (cfg80211_rdev_list_generation << 2)))
2407 goto nla_put_failure;
f5ea9120 2408
5b7ccaf3 2409 if (rdev->ops->get_channel) {
683b6d3b
JB		 2410 int ret;
2411 struct cfg80211_chan_def chandef;
2412
2413 ret = rdev_get_channel(rdev, wdev, &chandef);
2414 if (ret == 0) {
2415 if (nl80211_send_chandef(msg, &chandef))
2416 goto nla_put_failure;
2417 }
d91df0e3
PF		 2418 }
2419
d55d0d59
RM		 2420 if (rdev->ops->get_tx_power) {
2421 int dbm, ret;
2422
2423 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2424 if (ret == 0 &&
2425 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2426 DBM_TO_MBM(dbm)))
2427 goto nla_put_failure;
2428 }
2429
b84e7a05
AQ		 2430 if (wdev->ssid_len) {
2431 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2432 goto nla_put_failure;
2433 }
2434
053c095a
JB		 2435 genlmsg_end(msg, hdr);
2436 return 0;
55682965
JB		 2437
2438 nla_put_failure:
bc3ed28c
TG		 2439 genlmsg_cancel(msg, hdr);
2440 return -EMSGSIZE;
55682965
JB		 2441}
2442
2443static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2444{
2445 int wp_idx = 0;
2446 int if_idx = 0;
2447 int wp_start = cb->args[0];
2448 int if_start = cb->args[1];
f5ea9120 2449 struct cfg80211_registered_device *rdev;
55682965
JB		 2450 struct wireless_dev *wdev;
2451
5fe231e8 2452 rtnl_lock();
f5ea9120
JB		 2453 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2454 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2455 continue;
bba95fef
JB		 2456 if (wp_idx < wp_start) {
2457 wp_idx++;
55682965 2458 continue;
bba95fef 2459 }
55682965
JB		 2460 if_idx = 0;
2461
89a54e48 2462 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2463 if (if_idx < if_start) {
2464 if_idx++;
55682965 2465 continue;
bba95fef 2466 }
15e47304 2467 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2468 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2469 rdev, wdev, false) < 0) {
bba95fef
JB		 2470 goto out;
2471 }
2472 if_idx++;
55682965 2473 }
bba95fef
JB		 2474
2475 wp_idx++;
55682965 2476 }
bba95fef 2477 out:
5fe231e8 2478 rtnl_unlock();
55682965
JB		 2479
2480 cb->args[0] = wp_idx;
2481 cb->args[1] = if_idx;
2482
2483 return skb->len;
2484}
2485
2486static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2487{
2488 struct sk_buff *msg;
1b8ec87a 2489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2490 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2491
fd2120ca 2492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2493 if (!msg)
4c476991 2494 return -ENOMEM;
55682965 2495
15e47304 2496 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2497 rdev, wdev, false) < 0) {
4c476991
JB		 2498 nlmsg_free(msg);
2499 return -ENOBUFS;
2500 }
55682965 2501
134e6375 2502 return genlmsg_reply(msg, info);
55682965
JB		 2503}
2504
66f7ac50
MW		 2505static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2506 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2507 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2508 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2509 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2510 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2511 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2512};
2513
2514static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2515{
2516 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2517 int flag;
2518
2519 *mntrflags = 0;
2520
2521 if (!nla)
2522 return -EINVAL;
2523
2524 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2525 nla, mntr_flags_policy))
2526 return -EINVAL;
2527
2528 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2529 if (flags[flag])
2530 *mntrflags |= (1<<flag);
2531
2532 return 0;
2533}
2534
9bc383de 2535static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2536 struct net_device *netdev, u8 use_4addr,
2537 enum nl80211_iftype iftype)
9bc383de 2538{
ad4bb6f8 2539 if (!use_4addr) {
f350a0a8 2540 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2541 return -EBUSY;
9bc383de 2542 return 0;
ad4bb6f8 2543 }
9bc383de
JB		 2544
2545 switch (iftype) {
2546 case NL80211_IFTYPE_AP_VLAN:
2547 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2548 return 0;
2549 break;
2550 case NL80211_IFTYPE_STATION:
2551 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2552 return 0;
2553 break;
2554 default:
2555 break;
2556 }
2557
2558 return -EOPNOTSUPP;
2559}
2560
55682965
JB		 2561static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2562{
4c476991 2563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2564 struct vif_params params;
e36d56b6 2565 int err;
04a773ad 2566 enum nl80211_iftype otype, ntype;
4c476991 2567 struct net_device *dev = info->user_ptr[1];
92ffe055 2568 u32 _flags, *flags = NULL;
ac7f9cfa 2569 bool change = false;
55682965 2570
2ec600d6
LCC		 2571 memset(&params, 0, sizeof(params));
2572
04a773ad 2573 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2574
723b038d 2575 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2576 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2577 if (otype != ntype)
ac7f9cfa 2578 change = true;
4c476991
JB		 2579 if (ntype > NL80211_IFTYPE_MAX)
2580 return -EINVAL;
723b038d
JB		 2581 }
2582
92ffe055 2583 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2584 struct wireless_dev *wdev = dev->ieee80211_ptr;
2585
4c476991
JB		 2586 if (ntype != NL80211_IFTYPE_MESH_POINT)
2587 return -EINVAL;
29cbe68c
JB		 2588 if (netif_running(dev))
2589 return -EBUSY;
2590
2591 wdev_lock(wdev);
2592 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2593 IEEE80211_MAX_MESH_ID_LEN);
2594 wdev->mesh_id_up_len =
2595 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2596 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2597 wdev->mesh_id_up_len);
2598 wdev_unlock(wdev);
2ec600d6
LCC		 2599 }
2600
8b787643
FF		 2601 if (info->attrs[NL80211_ATTR_4ADDR]) {
2602 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2603 change = true;
ad4bb6f8 2604 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2605 if (err)
4c476991 2606 return err;
8b787643
FF		 2607 } else {
2608 params.use_4addr = -1;
2609 }
2610
92ffe055 2611 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2612 if (ntype != NL80211_IFTYPE_MONITOR)
2613 return -EINVAL;
92ffe055
JB		 2614 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2615 &_flags);
ac7f9cfa 2616 if (err)
4c476991 2617 return err;
ac7f9cfa
JB		 2618
2619 flags = &_flags;
2620 change = true;
92ffe055 2621 }
3b85875a 2622
18003297 2623 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2624 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2625 return -EOPNOTSUPP;
2626
ac7f9cfa 2627 if (change)
3d54d255 2628 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2629 else
2630 err = 0;
60719ffd 2631
9bc383de
JB		 2632 if (!err && params.use_4addr != -1)
2633 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2634
55682965
JB		 2635 return err;
2636}
2637
2638static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2639{
4c476991 2640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2641 struct vif_params params;
84efbb84 2642 struct wireless_dev *wdev;
8f894be2 2643 struct sk_buff *msg, *event;
55682965
JB		 2644 int err;
2645 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2646 u32 flags;
55682965 2647
78f22b6a
JB		 2648 /* to avoid failing a new interface creation due to pending removal */
2649 cfg80211_destroy_ifaces(rdev);
2650
2ec600d6
LCC		 2651 memset(&params, 0, sizeof(params));
2652
55682965
JB		 2653 if (!info->attrs[NL80211_ATTR_IFNAME])
2654 return -EINVAL;
2655
2656 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2657 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2658 if (type > NL80211_IFTYPE_MAX)
2659 return -EINVAL;
2660 }
2661
79c97e97 2662 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2663 !(rdev->wiphy.interface_modes & (1 << type)))
2664 return -EOPNOTSUPP;
55682965 2665
e8f479b1
BG		 2666 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2667 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2668 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2669 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2670 ETH_ALEN);
2671 if (!is_valid_ether_addr(params.macaddr))
2672 return -EADDRNOTAVAIL;
2673 }
2674
9bc383de 2675 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2676 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2677 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2678 if (err)
4c476991 2679 return err;
9bc383de 2680 }
8b787643 2681
66f7ac50
MW		 2682 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2683 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2684 &flags);
e057d3c3 2685
18003297 2686 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2687 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2688 return -EOPNOTSUPP;
2689
a18c7192
JB		 2690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2691 if (!msg)
2692 return -ENOMEM;
2693
e35e4d28
HG		 2694 wdev = rdev_add_virtual_intf(rdev,
2695 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2696 NET_NAME_USER, type, err ? NULL : &flags,
2697 &params);
d687cbb7
RM		 2698 if (WARN_ON(!wdev)) {
2699 nlmsg_free(msg);
2700 return -EPROTO;
2701 } else if (IS_ERR(wdev)) {
1c90f9d4 2702 nlmsg_free(msg);
84efbb84 2703 return PTR_ERR(wdev);
1c90f9d4 2704 }
2ec600d6 2705
18e5ca65 2706 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2707 wdev->owner_nlportid = info->snd_portid;
2708
98104fde
JB		 2709 switch (type) {
2710 case NL80211_IFTYPE_MESH_POINT:
2711 if (!info->attrs[NL80211_ATTR_MESH_ID])
2712 break;
29cbe68c
JB		 2713 wdev_lock(wdev);
2714 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2715 IEEE80211_MAX_MESH_ID_LEN);
2716 wdev->mesh_id_up_len =
2717 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2718 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2719 wdev->mesh_id_up_len);
2720 wdev_unlock(wdev);
98104fde
JB		 2721 break;
2722 case NL80211_IFTYPE_P2P_DEVICE:
2723 /*
2724 * P2P Device doesn't have a netdev, so doesn't go
2725 * through the netdev notifier and must be added here
2726 */
2727 mutex_init(&wdev->mtx);
2728 INIT_LIST_HEAD(&wdev->event_list);
2729 spin_lock_init(&wdev->event_lock);
2730 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2731 spin_lock_init(&wdev->mgmt_registrations_lock);
2732
98104fde
JB		 2733 wdev->identifier = ++rdev->wdev_id;
2734 list_add_rcu(&wdev->list, &rdev->wdev_list);
2735 rdev->devlist_generation++;
98104fde
JB		 2736 break;
2737 default:
2738 break;
29cbe68c
JB		 2739 }
2740
15e47304 2741 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2742 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2743 nlmsg_free(msg);
2744 return -ENOBUFS;
2745 }
2746
8f894be2
TB		 2747 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2748 if (event) {
2749 if (nl80211_send_iface(event, 0, 0, 0,
2750 rdev, wdev, false) < 0) {
2751 nlmsg_free(event);
2752 goto out;
2753 }
2754
2755 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2756 event, 0, NL80211_MCGRP_CONFIG,
2757 GFP_KERNEL);
2758 }
2759
2760out:
1c90f9d4 2761 return genlmsg_reply(msg, info);
55682965
JB		 2762}
2763
2764static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2765{
4c476991 2766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2767 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2768 struct sk_buff *msg;
2769 int status;
55682965 2770
4c476991
JB		 2771 if (!rdev->ops->del_virtual_intf)
2772 return -EOPNOTSUPP;
55682965 2773
8f894be2
TB		 2774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2775 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2776 nlmsg_free(msg);
2777 msg = NULL;
2778 }
2779
84efbb84
JB		 2780 /*
2781 * If we remove a wireless device without a netdev then clear
2782 * user_ptr[1] so that nl80211_post_doit won't dereference it
2783 * to check if it needs to do dev_put(). Otherwise it crashes
2784 * since the wdev has been freed, unlike with a netdev where
2785 * we need the dev_put() for the netdev to really be freed.
2786 */
2787 if (!wdev->netdev)
2788 info->user_ptr[1] = NULL;
2789
8f894be2
TB		 2790 status = rdev_del_virtual_intf(rdev, wdev);
2791 if (status >= 0 && msg)
2792 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2793 msg, 0, NL80211_MCGRP_CONFIG,
2794 GFP_KERNEL);
2795 else
2796 nlmsg_free(msg);
2797
2798 return status;
55682965
JB		 2799}
2800
1d9d9213
SW		 2801static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2802{
2803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2804 struct net_device *dev = info->user_ptr[1];
2805 u16 noack_map;
2806
2807 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2808 return -EINVAL;
2809
2810 if (!rdev->ops->set_noack_map)
2811 return -EOPNOTSUPP;
2812
2813 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2814
e35e4d28 2815 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2816}
2817
41ade00f
JB		 2818struct get_key_cookie {
2819 struct sk_buff *msg;
2820 int error;
b9454e83 2821 int idx;
41ade00f
JB		 2822};
2823
2824static void get_key_callback(void *c, struct key_params *params)
2825{
b9454e83 2826 struct nlattr *key;
41ade00f
JB		 2827 struct get_key_cookie *cookie = c;
2828
9360ffd1
DM		 2829 if ((params->key &&
2830 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2831 params->key_len, params->key)) ||
2832 (params->seq &&
2833 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2834 params->seq_len, params->seq)) ||
2835 (params->cipher &&
2836 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2837 params->cipher)))
2838 goto nla_put_failure;
41ade00f 2839
b9454e83
JB		 2840 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2841 if (!key)
2842 goto nla_put_failure;
2843
9360ffd1
DM		 2844 if ((params->key &&
2845 nla_put(cookie->msg, NL80211_KEY_DATA,
2846 params->key_len, params->key)) ||
2847 (params->seq &&
2848 nla_put(cookie->msg, NL80211_KEY_SEQ,
2849 params->seq_len, params->seq)) ||
2850 (params->cipher &&
2851 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2852 params->cipher)))
2853 goto nla_put_failure;
b9454e83 2854
9360ffd1
DM		 2855 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2856 goto nla_put_failure;
b9454e83
JB		 2857
2858 nla_nest_end(cookie->msg, key);
2859
41ade00f
JB		 2860 return;
2861 nla_put_failure:
2862 cookie->error = 1;
2863}
2864
2865static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2866{
4c476991 2867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2868 int err;
4c476991 2869 struct net_device *dev = info->user_ptr[1];
41ade00f 2870 u8 key_idx = 0;
e31b8213
JB		 2871 const u8 *mac_addr = NULL;
2872 bool pairwise;
41ade00f
JB		 2873 struct get_key_cookie cookie = {
2874 .error = 0,
2875 };
2876 void *hdr;
2877 struct sk_buff *msg;
2878
2879 if (info->attrs[NL80211_ATTR_KEY_IDX])
2880 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2881
3cfcf6ac 2882 if (key_idx > 5)
41ade00f
JB		 2883 return -EINVAL;
2884
2885 if (info->attrs[NL80211_ATTR_MAC])
2886 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2887
e31b8213
JB		 2888 pairwise = !!mac_addr;
2889 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2890 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2891 if (kt >= NUM_NL80211_KEYTYPES)
2892 return -EINVAL;
2893 if (kt != NL80211_KEYTYPE_GROUP &&
2894 kt != NL80211_KEYTYPE_PAIRWISE)
2895 return -EINVAL;
2896 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2897 }
2898
4c476991
JB		 2899 if (!rdev->ops->get_key)
2900 return -EOPNOTSUPP;
41ade00f 2901
0fa7b391
JB		 2902 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2903 return -ENOENT;
2904
fd2120ca 2905 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2906 if (!msg)
2907 return -ENOMEM;
41ade00f 2908
15e47304 2909 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2910 NL80211_CMD_NEW_KEY);
cb35fba3 2911 if (!hdr)
9fe271af 2912 goto nla_put_failure;
41ade00f
JB		 2913
2914 cookie.msg = msg;
b9454e83 2915 cookie.idx = key_idx;
41ade00f 2916
9360ffd1
DM		 2917 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2918 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2919 goto nla_put_failure;
2920 if (mac_addr &&
2921 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2922 goto nla_put_failure;
41ade00f 2923
e35e4d28
HG		 2924 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2925 get_key_callback);
41ade00f
JB		 2926
2927 if (err)
6c95e2a2 2928 goto free_msg;
41ade00f
JB		 2929
2930 if (cookie.error)
2931 goto nla_put_failure;
2932
2933 genlmsg_end(msg, hdr);
4c476991 2934 return genlmsg_reply(msg, info);
41ade00f
JB		 2935
2936 nla_put_failure:
2937 err = -ENOBUFS;
6c95e2a2 2938 free_msg:
41ade00f 2939 nlmsg_free(msg);
41ade00f
JB		 2940 return err;
2941}
2942
2943static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2944{
4c476991 2945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2946 struct key_parse key;
41ade00f 2947 int err;
4c476991 2948 struct net_device *dev = info->user_ptr[1];
41ade00f 2949
b9454e83
JB		 2950 err = nl80211_parse_key(info, &key);
2951 if (err)
2952 return err;
41ade00f 2953
b9454e83 2954 if (key.idx < 0)
41ade00f
JB		 2955 return -EINVAL;
2956
b9454e83
JB		 2957 /* only support setting default key */
2958 if (!key.def && !key.defmgmt)
41ade00f
JB		 2959 return -EINVAL;
2960
dbd2fd65 2961 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2962
dbd2fd65
JB		 2963 if (key.def) {
2964 if (!rdev->ops->set_default_key) {
2965 err = -EOPNOTSUPP;
2966 goto out;
2967 }
41ade00f 2968
dbd2fd65
JB		 2969 err = nl80211_key_allowed(dev->ieee80211_ptr);
2970 if (err)
2971 goto out;
2972
e35e4d28 2973 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2974 key.def_uni, key.def_multi);
2975
2976 if (err)
2977 goto out;
fffd0934 2978
3d23e349 2979#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2980 dev->ieee80211_ptr->wext.default_key = key.idx;
2981#endif
2982 } else {
2983 if (key.def_uni || !key.def_multi) {
2984 err = -EINVAL;
2985 goto out;
2986 }
2987
2988 if (!rdev->ops->set_default_mgmt_key) {
2989 err = -EOPNOTSUPP;
2990 goto out;
2991 }
2992
2993 err = nl80211_key_allowed(dev->ieee80211_ptr);
2994 if (err)
2995 goto out;
2996
e35e4d28 2997 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2998 if (err)
2999 goto out;
3000
3001#ifdef CONFIG_CFG80211_WEXT
3002 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3003#endif
dbd2fd65
JB		 3004 }
3005
3006 out:
fffd0934 3007 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3008
41ade00f
JB		 3009 return err;
3010}
3011
3012static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3013{
4c476991 3014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3015 int err;
4c476991 3016 struct net_device *dev = info->user_ptr[1];
b9454e83 3017 struct key_parse key;
e31b8213 3018 const u8 *mac_addr = NULL;
41ade00f 3019
b9454e83
JB		 3020 err = nl80211_parse_key(info, &key);
3021 if (err)
3022 return err;
41ade00f 3023
b9454e83 3024 if (!key.p.key)
41ade00f
JB		 3025 return -EINVAL;
3026
41ade00f
JB		 3027 if (info->attrs[NL80211_ATTR_MAC])
3028 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3029
e31b8213
JB		 3030 if (key.type == -1) {
3031 if (mac_addr)
3032 key.type = NL80211_KEYTYPE_PAIRWISE;
3033 else
3034 key.type = NL80211_KEYTYPE_GROUP;
3035 }
3036
3037 /* for now */
3038 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3039 key.type != NL80211_KEYTYPE_GROUP)
3040 return -EINVAL;
3041
4c476991
JB		 3042 if (!rdev->ops->add_key)
3043 return -EOPNOTSUPP;
25e47c18 3044
e31b8213
JB		 3045 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3046 key.type == NL80211_KEYTYPE_PAIRWISE,
3047 mac_addr))
4c476991 3048 return -EINVAL;
41ade00f 3049
fffd0934
JB		 3050 wdev_lock(dev->ieee80211_ptr);
3051 err = nl80211_key_allowed(dev->ieee80211_ptr);
3052 if (!err)
e35e4d28
HG		 3053 err = rdev_add_key(rdev, dev, key.idx,
3054 key.type == NL80211_KEYTYPE_PAIRWISE,
3055 mac_addr, &key.p);
fffd0934 3056 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3057
41ade00f
JB		 3058 return err;
3059}
3060
3061static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3062{
4c476991 3063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3064 int err;
4c476991 3065 struct net_device *dev = info->user_ptr[1];
41ade00f 3066 u8 *mac_addr = NULL;
b9454e83 3067 struct key_parse key;
41ade00f 3068
b9454e83
JB		 3069 err = nl80211_parse_key(info, &key);
3070 if (err)
3071 return err;
41ade00f
JB		 3072
3073 if (info->attrs[NL80211_ATTR_MAC])
3074 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3075
e31b8213
JB		 3076 if (key.type == -1) {
3077 if (mac_addr)
3078 key.type = NL80211_KEYTYPE_PAIRWISE;
3079 else
3080 key.type = NL80211_KEYTYPE_GROUP;
3081 }
3082
3083 /* for now */
3084 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3085 key.type != NL80211_KEYTYPE_GROUP)
3086 return -EINVAL;
3087
4c476991
JB		 3088 if (!rdev->ops->del_key)
3089 return -EOPNOTSUPP;
41ade00f 3090
fffd0934
JB		 3091 wdev_lock(dev->ieee80211_ptr);
3092 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3093
0fa7b391 3094 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3095 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3096 err = -ENOENT;
3097
fffd0934 3098 if (!err)
e35e4d28
HG		 3099 err = rdev_del_key(rdev, dev, key.idx,
3100 key.type == NL80211_KEYTYPE_PAIRWISE,
3101 mac_addr);
41ade00f 3102
3d23e349 3103#ifdef CONFIG_CFG80211_WEXT
08645126 3104 if (!err) {
b9454e83 3105 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3106 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3107 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3108 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3109 }
3110#endif
fffd0934 3111 wdev_unlock(dev->ieee80211_ptr);
08645126 3112
41ade00f
JB		 3113 return err;
3114}
3115
77765eaf
VT		 3116/* This function returns an error or the number of nested attributes */
3117static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3118{
3119 struct nlattr *attr;
3120 int n_entries = 0, tmp;
3121
3122 nla_for_each_nested(attr, nl_attr, tmp) {
3123 if (nla_len(attr) != ETH_ALEN)
3124 return -EINVAL;
3125
3126 n_entries++;
3127 }
3128
3129 return n_entries;
3130}
3131
3132/*
3133 * This function parses ACL information and allocates memory for ACL data.
3134 * On successful return, the calling function is responsible to free the
3135 * ACL buffer returned by this function.
3136 */
3137static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3138 struct genl_info *info)
3139{
3140 enum nl80211_acl_policy acl_policy;
3141 struct nlattr *attr;
3142 struct cfg80211_acl_data *acl;
3143 int i = 0, n_entries, tmp;
3144
3145 if (!wiphy->max_acl_mac_addrs)
3146 return ERR_PTR(-EOPNOTSUPP);
3147
3148 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3149 return ERR_PTR(-EINVAL);
3150
3151 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3152 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3153 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3154 return ERR_PTR(-EINVAL);
3155
3156 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3157 return ERR_PTR(-EINVAL);
3158
3159 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3160 if (n_entries < 0)
3161 return ERR_PTR(n_entries);
3162
3163 if (n_entries > wiphy->max_acl_mac_addrs)
3164 return ERR_PTR(-ENOTSUPP);
3165
3166 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3167 GFP_KERNEL);
3168 if (!acl)
3169 return ERR_PTR(-ENOMEM);
3170
3171 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3172 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3173 i++;
3174 }
3175
3176 acl->n_acl_entries = n_entries;
3177 acl->acl_policy = acl_policy;
3178
3179 return acl;
3180}
3181
3182static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3183{
3184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3185 struct net_device *dev = info->user_ptr[1];
3186 struct cfg80211_acl_data *acl;
3187 int err;
3188
3189 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3190 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3191 return -EOPNOTSUPP;
3192
3193 if (!dev->ieee80211_ptr->beacon_interval)
3194 return -EINVAL;
3195
3196 acl = parse_acl_data(&rdev->wiphy, info);
3197 if (IS_ERR(acl))
3198 return PTR_ERR(acl);
3199
3200 err = rdev_set_mac_acl(rdev, dev, acl);
3201
3202 kfree(acl);
3203
3204 return err;
3205}
3206
a1193be8 3207static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3208 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3209{
8860020e 3210 bool haveinfo = false;
ed1b6cc7 3211
a1193be8
SW		 3212 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3213 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3214 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3215 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3216 return -EINVAL;
3217
8860020e 3218 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3219
a1193be8
SW		 3220 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3221 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3222 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3223 if (!bcn->head_len)
3224 return -EINVAL;
3225 haveinfo = true;
ed1b6cc7
JB		 3226 }
3227
a1193be8
SW		 3228 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3229 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3230 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3231 haveinfo = true;
ed1b6cc7
JB		 3232 }
3233
4c476991
JB		 3234 if (!haveinfo)
3235 return -EINVAL;
3b85875a 3236
a1193be8
SW		 3237 if (attrs[NL80211_ATTR_IE]) {
3238 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3239 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3240 }
3241
a1193be8 3242 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3243 bcn->proberesp_ies =
a1193be8 3244 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3245 bcn->proberesp_ies_len =
a1193be8 3246 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3247 }
3248
a1193be8 3249 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3250 bcn->assocresp_ies =
a1193be8 3251 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3252 bcn->assocresp_ies_len =
a1193be8 3253 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3254 }
3255
a1193be8
SW		 3256 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3257 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3258 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3259 }
3260
8860020e
JB		 3261 return 0;
3262}
3263
46c1dd0c
FF		 3264static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3265 struct cfg80211_ap_settings *params)
3266{
3267 struct wireless_dev *wdev;
3268 bool ret = false;
3269
89a54e48 3270 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3271 if (wdev->iftype != NL80211_IFTYPE_AP &&
3272 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3273 continue;
3274
683b6d3b 3275 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3276 continue;
3277
683b6d3b 3278 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3279 ret = true;
3280 break;
3281 }
3282
46c1dd0c
FF		 3283 return ret;
3284}
3285
e39e5b5e
JM		 3286static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3287 enum nl80211_auth_type auth_type,
3288 enum nl80211_commands cmd)
3289{
3290 if (auth_type > NL80211_AUTHTYPE_MAX)
3291 return false;
3292
3293 switch (cmd) {
3294 case NL80211_CMD_AUTHENTICATE:
3295 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3296 auth_type == NL80211_AUTHTYPE_SAE)
3297 return false;
3298 return true;
3299 case NL80211_CMD_CONNECT:
3300 case NL80211_CMD_START_AP:
3301 /* SAE not supported yet */
3302 if (auth_type == NL80211_AUTHTYPE_SAE)
3303 return false;
3304 return true;
3305 default:
3306 return false;
3307 }
3308}
3309
8860020e
JB		 3310static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3311{
3312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3313 struct net_device *dev = info->user_ptr[1];
3314 struct wireless_dev *wdev = dev->ieee80211_ptr;
3315 struct cfg80211_ap_settings params;
3316 int err;
3317
3318 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3319 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3320 return -EOPNOTSUPP;
3321
3322 if (!rdev->ops->start_ap)
3323 return -EOPNOTSUPP;
3324
3325 if (wdev->beacon_interval)
3326 return -EALREADY;
3327
3328 memset(&params, 0, sizeof(params));
3329
3330 /* these are required for START_AP */
3331 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3332 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3333 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3334 return -EINVAL;
3335
a1193be8 3336 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3337 if (err)
3338 return err;
3339
3340 params.beacon_interval =
3341 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3342 params.dtim_period =
3343 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3344
3345 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3346 if (err)
3347 return err;
3348
3349 /*
3350 * In theory, some of these attributes should be required here
3351 * but since they were not used when the command was originally
3352 * added, keep them optional for old user space programs to let
3353 * them continue to work with drivers that do not need the
3354 * additional information -- drivers must check!
3355 */
3356 if (info->attrs[NL80211_ATTR_SSID]) {
3357 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3358 params.ssid_len =
3359 nla_len(info->attrs[NL80211_ATTR_SSID]);
3360 if (params.ssid_len == 0 ||
3361 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3362 return -EINVAL;
3363 }
3364
3365 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3366 params.hidden_ssid = nla_get_u32(
3367 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3368 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3369 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3370 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3371 return -EINVAL;
3372 }
3373
3374 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3375
3376 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3377 params.auth_type = nla_get_u32(
3378 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3379 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3380 NL80211_CMD_START_AP))
8860020e
JB		 3381 return -EINVAL;
3382 } else
3383 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3384
3385 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3386 NL80211_MAX_NR_CIPHER_SUITES);
3387 if (err)
3388 return err;
3389
1b658f11
VT		 3390 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3391 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3392 return -EOPNOTSUPP;
3393 params.inactivity_timeout = nla_get_u16(
3394 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3395 }
3396
53cabad7
JB		 3397 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3398 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3399 return -EINVAL;
3400 params.p2p_ctwindow =
3401 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3402 if (params.p2p_ctwindow > 127)
3403 return -EINVAL;
3404 if (params.p2p_ctwindow != 0 &&
3405 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3406 return -EINVAL;
3407 }
3408
3409 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3410 u8 tmp;
3411
3412 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3413 return -EINVAL;
3414 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3415 if (tmp > 1)
3416 return -EINVAL;
3417 params.p2p_opp_ps = tmp;
3418 if (params.p2p_opp_ps != 0 &&
3419 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3420 return -EINVAL;
3421 }
3422
aa430da4 3423 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3424 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3425 if (err)
3426 return err;
3427 } else if (wdev->preset_chandef.chan) {
3428 params.chandef = wdev->preset_chandef;
46c1dd0c 3429 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3430 return -EINVAL;
3431
923b352f
AN		 3432 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3433 wdev->iftype))
aa430da4
JB		 3434 return -EINVAL;
3435
18998c38
EP		 3436 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3437 params.smps_mode =
3438 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3439 switch (params.smps_mode) {
3440 case NL80211_SMPS_OFF:
3441 break;
3442 case NL80211_SMPS_STATIC:
3443 if (!(rdev->wiphy.features &
3444 NL80211_FEATURE_STATIC_SMPS))
3445 return -EINVAL;
3446 break;
3447 case NL80211_SMPS_DYNAMIC:
3448 if (!(rdev->wiphy.features &
3449 NL80211_FEATURE_DYNAMIC_SMPS))
3450 return -EINVAL;
3451 break;
3452 default:
3453 return -EINVAL;
3454 }
3455 } else {
3456 params.smps_mode = NL80211_SMPS_OFF;
3457 }
3458
4baf6bea
OO		 3459 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3460 params.acl = parse_acl_data(&rdev->wiphy, info);
3461 if (IS_ERR(params.acl))
3462 return PTR_ERR(params.acl);
3463 }
3464
34d50519
LD		 3465 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3466 if (params.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ])
3467 return -EOPNOTSUPP;
3468
c56589ed 3469 wdev_lock(wdev);
e35e4d28 3470 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3471 if (!err) {
683b6d3b 3472 wdev->preset_chandef = params.chandef;
8860020e 3473 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3474 wdev->chandef = params.chandef;
06e191e2
AQ		 3475 wdev->ssid_len = params.ssid_len;
3476 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3477 }
c56589ed 3478 wdev_unlock(wdev);
77765eaf
VT		 3479
3480 kfree(params.acl);
3481
56d1893d 3482 return err;
ed1b6cc7
JB		 3483}
3484
8860020e
JB		 3485static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3486{
3487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3488 struct net_device *dev = info->user_ptr[1];
3489 struct wireless_dev *wdev = dev->ieee80211_ptr;
3490 struct cfg80211_beacon_data params;
3491 int err;
3492
3493 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3494 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3495 return -EOPNOTSUPP;
3496
3497 if (!rdev->ops->change_beacon)
3498 return -EOPNOTSUPP;
3499
3500 if (!wdev->beacon_interval)
3501 return -EINVAL;
3502
a1193be8 3503 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3504 if (err)
3505 return err;
3506
c56589ed
SW		 3507 wdev_lock(wdev);
3508 err = rdev_change_beacon(rdev, dev, &params);
3509 wdev_unlock(wdev);
3510
3511 return err;
8860020e
JB		 3512}
3513
3514static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3515{
4c476991
JB		 3516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3517 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3518
7c8d5e03 3519 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3520}
3521
5727ef1b
JB		 3522static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3523 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3524 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3525 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3526 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3527 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3528 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3529};
3530
eccb8e8f 3531static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3532 enum nl80211_iftype iftype,
eccb8e8f 3533 struct station_parameters *params)
5727ef1b
JB		 3534{
3535 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3536 struct nlattr *nla;
5727ef1b
JB		 3537 int flag;
3538
eccb8e8f
JB		 3539 /*
3540 * Try parsing the new attribute first so userspace
3541 * can specify both for older kernels.
3542 */
3543 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3544 if (nla) {
3545 struct nl80211_sta_flag_update *sta_flags;
3546
3547 sta_flags = nla_data(nla);
3548 params->sta_flags_mask = sta_flags->mask;
3549 params->sta_flags_set = sta_flags->set;
77ee7c89 3550 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3551 if ((params->sta_flags_mask |
3552 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3553 return -EINVAL;
3554 return 0;
3555 }
3556
3557 /* if present, parse the old attribute */
5727ef1b 3558
eccb8e8f 3559 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3560 if (!nla)
3561 return 0;
3562
3563 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3564 nla, sta_flags_policy))
3565 return -EINVAL;
3566
bdd3ae3d
JB		 3567 /*
3568 * Only allow certain flags for interface types so that
3569 * other attributes are silently ignored. Remember that
3570 * this is backward compatibility code with old userspace
3571 * and shouldn't be hit in other cases anyway.
3572 */
3573 switch (iftype) {
3574 case NL80211_IFTYPE_AP:
3575 case NL80211_IFTYPE_AP_VLAN:
3576 case NL80211_IFTYPE_P2P_GO:
3577 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3578 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3579 BIT(NL80211_STA_FLAG_WME) |
3580 BIT(NL80211_STA_FLAG_MFP);
3581 break;
3582 case NL80211_IFTYPE_P2P_CLIENT:
3583 case NL80211_IFTYPE_STATION:
3584 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3585 BIT(NL80211_STA_FLAG_TDLS_PEER);
3586 break;
3587 case NL80211_IFTYPE_MESH_POINT:
3588 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3589 BIT(NL80211_STA_FLAG_MFP) |
3590 BIT(NL80211_STA_FLAG_AUTHORIZED);
3591 default:
3592 return -EINVAL;
3593 }
5727ef1b 3594
3383b5a6
JB		 3595 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3596 if (flags[flag]) {
eccb8e8f 3597 params->sta_flags_set |= (1<<flag);
5727ef1b 3598
3383b5a6
JB		 3599 /* no longer support new API additions in old API */
3600 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3601 return -EINVAL;
3602 }
3603 }
3604
5727ef1b
JB		 3605 return 0;
3606}
3607
c8dcfd8a
FF		 3608static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3609 int attr)
3610{
3611 struct nlattr *rate;
8eb41c8d
VK		 3612 u32 bitrate;
3613 u16 bitrate_compat;
b51f3bee 3614 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3615
3616 rate = nla_nest_start(msg, attr);
3617 if (!rate)
db9c64cf 3618 return false;
c8dcfd8a
FF		 3619
3620 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3621 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3622 /* report 16-bit bitrate only if we can */
3623 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3624 if (bitrate > 0 &&
3625 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3626 return false;
3627 if (bitrate_compat > 0 &&
3628 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3629 return false;
3630
b51f3bee
JB		 3631 switch (info->bw) {
3632 case RATE_INFO_BW_5:
3633 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3634 break;
3635 case RATE_INFO_BW_10:
3636 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3637 break;
3638 default:
3639 WARN_ON(1);
3640 /* fall through */
3641 case RATE_INFO_BW_20:
3642 rate_flg = 0;
3643 break;
3644 case RATE_INFO_BW_40:
3645 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3646 break;
3647 case RATE_INFO_BW_80:
3648 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3649 break;
3650 case RATE_INFO_BW_160:
3651 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3652 break;
3653 }
3654
3655 if (rate_flg && nla_put_flag(msg, rate_flg))
3656 return false;
3657
db9c64cf
JB		 3658 if (info->flags & RATE_INFO_FLAGS_MCS) {
3659 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3660 return false;
db9c64cf
JB		 3661 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3662 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3663 return false;
3664 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3665 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3666 return false;
3667 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3668 return false;
db9c64cf
JB		 3669 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3670 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3671 return false;
3672 }
c8dcfd8a
FF		 3673
3674 nla_nest_end(msg, rate);
3675 return true;
c8dcfd8a
FF		 3676}
3677
119363c7
FF		 3678static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3679 int id)
3680{
3681 void *attr;
3682 int i = 0;
3683
3684 if (!mask)
3685 return true;
3686
3687 attr = nla_nest_start(msg, id);
3688 if (!attr)
3689 return false;
3690
3691 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3692 if (!(mask & BIT(i)))
3693 continue;
3694
3695 if (nla_put_u8(msg, i, signal[i]))
3696 return false;
3697 }
3698
3699 nla_nest_end(msg, attr);
3700
3701 return true;
3702}
3703
cf5ead82
JB		 3704static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3705 u32 seq, int flags,
66266b3a
JL		 3706 struct cfg80211_registered_device *rdev,
3707 struct net_device *dev,
98b62183 3708 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3709{
3710 void *hdr;
f4263c98 3711 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3712
cf5ead82 3713 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3714 if (!hdr)
3715 return -1;
3716
9360ffd1
DM		 3717 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3718 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3719 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3720 goto nla_put_failure;
f5ea9120 3721
2ec600d6
LCC		 3722 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3723 if (!sinfoattr)
fd5b74dc 3724 goto nla_put_failure;
319090bf
JB		 3725
3726#define PUT_SINFO(attr, memb, type) do { \
3727 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3728 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3729 sinfo->memb)) \
3730 goto nla_put_failure; \
3731 } while (0)
3732
3733 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3734 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3735
3736 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3737 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3738 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3739 (u32)sinfo->rx_bytes))
9360ffd1 3740 goto nla_put_failure;
319090bf
JB		 3741
3742 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3743 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3744 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3745 (u32)sinfo->tx_bytes))
3746 goto nla_put_failure;
319090bf
JB		 3747
3748 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3749 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3750 PUT_SINFO(LLID, llid, u16);
3751 PUT_SINFO(PLID, plid, u16);
3752 PUT_SINFO(PLINK_STATE, plink_state, u8);
3753
66266b3a
JL		 3754 switch (rdev->wiphy.signal_type) {
3755 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3756 PUT_SINFO(SIGNAL, signal, u8);
3757 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3758 break;
3759 default:
3760 break;
3761 }
319090bf 3762 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3763 if (!nl80211_put_signal(msg, sinfo->chains,
3764 sinfo->chain_signal,
3765 NL80211_STA_INFO_CHAIN_SIGNAL))
3766 goto nla_put_failure;
3767 }
319090bf 3768 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3769 if (!nl80211_put_signal(msg, sinfo->chains,
3770 sinfo->chain_signal_avg,
3771 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3772 goto nla_put_failure;
3773 }
319090bf 3774 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3775 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3776 NL80211_STA_INFO_TX_BITRATE))
3777 goto nla_put_failure;
3778 }
319090bf 3779 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3780 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3781 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3782 goto nla_put_failure;
420e7fab 3783 }
319090bf
JB		 3784
3785 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3786 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3787 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3788 PUT_SINFO(TX_FAILED, tx_failed, u32);
3789 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3790 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3791 PUT_SINFO(LOCAL_PM, local_pm, u32);
3792 PUT_SINFO(PEER_PM, peer_pm, u32);
3793 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3794
3795 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3796 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3797 if (!bss_param)
3798 goto nla_put_failure;
3799
9360ffd1
DM		 3800 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3801 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3802 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3803 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3804 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3805 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3806 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3807 sinfo->bss_param.dtim_period) ||
3808 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3809 sinfo->bss_param.beacon_interval))
3810 goto nla_put_failure;
f4263c98
PS		 3811
3812 nla_nest_end(msg, bss_param);
3813 }
319090bf 3814 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3815 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3816 sizeof(struct nl80211_sta_flag_update),
3817 &sinfo->sta_flags))
3818 goto nla_put_failure;
319090bf
JB		 3819
3820 PUT_SINFO(T_OFFSET, t_offset, u64);
3821 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3822 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3823 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3824
3825#undef PUT_SINFO
6de39808
JB		 3826
3827 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3828 struct nlattr *tidsattr;
3829 int tid;
3830
3831 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3832 if (!tidsattr)
3833 goto nla_put_failure;
3834
3835 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3836 struct cfg80211_tid_stats *tidstats;
3837 struct nlattr *tidattr;
3838
3839 tidstats = &sinfo->pertid[tid];
3840
3841 if (!tidstats->filled)
3842 continue;
3843
3844 tidattr = nla_nest_start(msg, tid + 1);
3845 if (!tidattr)
3846 goto nla_put_failure;
3847
3848#define PUT_TIDVAL(attr, memb, type) do { \
3849 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3850 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3851 tidstats->memb)) \
3852 goto nla_put_failure; \
3853 } while (0)
3854
3855 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3856 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3857 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3858 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3859
3860#undef PUT_TIDVAL
3861 nla_nest_end(msg, tidattr);
3862 }
3863
3864 nla_nest_end(msg, tidsattr);
3865 }
3866
2ec600d6 3867 nla_nest_end(msg, sinfoattr);
fd5b74dc 3868
319090bf 3869 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3870 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3871 sinfo->assoc_req_ies))
3872 goto nla_put_failure;
50d3dfb7 3873
053c095a
JB		 3874 genlmsg_end(msg, hdr);
3875 return 0;
fd5b74dc
JB		 3876
3877 nla_put_failure:
bc3ed28c
TG		 3878 genlmsg_cancel(msg, hdr);
3879 return -EMSGSIZE;
fd5b74dc
JB		 3880}
3881
2ec600d6 3882static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3883 struct netlink_callback *cb)
2ec600d6 3884{
2ec600d6 3885 struct station_info sinfo;
1b8ec87a 3886 struct cfg80211_registered_device *rdev;
97990a06 3887 struct wireless_dev *wdev;
2ec600d6 3888 u8 mac_addr[ETH_ALEN];
97990a06 3889 int sta_idx = cb->args[2];
2ec600d6 3890 int err;
2ec600d6 3891
1b8ec87a 3892 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3893 if (err)
3894 return err;
bba95fef 3895
97990a06
JB		 3896 if (!wdev->netdev) {
3897 err = -EINVAL;
3898 goto out_err;
3899 }
3900
1b8ec87a 3901 if (!rdev->ops->dump_station) {
eec60b03 3902 err = -EOPNOTSUPP;
bba95fef
JB		 3903 goto out_err;
3904 }
3905
bba95fef 3906 while (1) {
f612cedf 3907 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3908 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3909 mac_addr, &sinfo);
bba95fef
JB		 3910 if (err == -ENOENT)
3911 break;
3912 if (err)
3b85875a 3913 goto out_err;
bba95fef 3914
cf5ead82 3915 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3916 NETLINK_CB(cb->skb).portid,
bba95fef 3917 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3918 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3919 &sinfo) < 0)
3920 goto out;
3921
3922 sta_idx++;
3923 }
3924
3925
3926 out:
97990a06 3927 cb->args[2] = sta_idx;
bba95fef 3928 err = skb->len;
bba95fef 3929 out_err:
1b8ec87a 3930 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3931
3932 return err;
2ec600d6 3933}
fd5b74dc 3934
5727ef1b
JB		 3935static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3936{
4c476991
JB		 3937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3938 struct net_device *dev = info->user_ptr[1];
2ec600d6 3939 struct station_info sinfo;
fd5b74dc
JB		 3940 struct sk_buff *msg;
3941 u8 *mac_addr = NULL;
4c476991 3942 int err;
fd5b74dc 3943
2ec600d6 3944 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3945
3946 if (!info->attrs[NL80211_ATTR_MAC])
3947 return -EINVAL;
3948
3949 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3950
4c476991
JB		 3951 if (!rdev->ops->get_station)
3952 return -EOPNOTSUPP;
3b85875a 3953
e35e4d28 3954 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3955 if (err)
4c476991 3956 return err;
2ec600d6 3957
fd2120ca 3958 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3959 if (!msg)
4c476991 3960 return -ENOMEM;
fd5b74dc 3961
cf5ead82
JB		 3962 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3963 info->snd_portid, info->snd_seq, 0,
66266b3a 3964 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3965 nlmsg_free(msg);
3966 return -ENOBUFS;
3967 }
3b85875a 3968
4c476991 3969 return genlmsg_reply(msg, info);
5727ef1b
JB		 3970}
3971
77ee7c89
JB		 3972int cfg80211_check_station_change(struct wiphy *wiphy,
3973 struct station_parameters *params,
3974 enum cfg80211_station_type statype)
3975{
e4208427
AB		 3976 if (params->listen_interval != -1 &&
3977 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 3978 return -EINVAL;
e4208427 3979
c72e1140 3980 if (params->aid &&
e4208427
AB		 3981 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
3982 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 3983 return -EINVAL;
3984
3985 /* When you run into this, adjust the code below for the new flag */
3986 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3987
3988 switch (statype) {
eef941e6
TP		 3989 case CFG80211_STA_MESH_PEER_KERNEL:
3990 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3991 /*
3992 * No ignoring the TDLS flag here -- the userspace mesh
3993 * code doesn't have the bug of including TDLS in the
3994 * mask everywhere.
3995 */
3996 if (params->sta_flags_mask &
3997 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3998 BIT(NL80211_STA_FLAG_MFP) |
3999 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4000 return -EINVAL;
4001 break;
4002 case CFG80211_STA_TDLS_PEER_SETUP:
4003 case CFG80211_STA_TDLS_PEER_ACTIVE:
4004 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4005 return -EINVAL;
4006 /* ignore since it can't change */
4007 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4008 break;
4009 default:
4010 /* disallow mesh-specific things */
4011 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4012 return -EINVAL;
4013 if (params->local_pm)
4014 return -EINVAL;
4015 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4016 return -EINVAL;
4017 }
4018
4019 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4020 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4021 /* TDLS can't be set, ... */
4022 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4023 return -EINVAL;
4024 /*
4025 * ... but don't bother the driver with it. This works around
4026 * a hostapd/wpa_supplicant issue -- it always includes the
4027 * TLDS_PEER flag in the mask even for AP mode.
4028 */
4029 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4030 }
4031
47edb11b
AB		 4032 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4033 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4034 /* reject other things that can't change */
4035 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4036 return -EINVAL;
4037 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4038 return -EINVAL;
4039 if (params->supported_rates)
4040 return -EINVAL;
4041 if (params->ext_capab || params->ht_capa || params->vht_capa)
4042 return -EINVAL;
4043 }
4044
47edb11b
AB		 4045 if (statype != CFG80211_STA_AP_CLIENT &&
4046 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4047 if (params->vlan)
4048 return -EINVAL;
4049 }
4050
4051 switch (statype) {
4052 case CFG80211_STA_AP_MLME_CLIENT:
4053 /* Use this only for authorizing/unauthorizing a station */
4054 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4055 return -EOPNOTSUPP;
4056 break;
4057 case CFG80211_STA_AP_CLIENT:
47edb11b 4058 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4059 /* accept only the listed bits */
4060 if (params->sta_flags_mask &
4061 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4062 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4063 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4064 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4065 BIT(NL80211_STA_FLAG_WME) |
4066 BIT(NL80211_STA_FLAG_MFP)))
4067 return -EINVAL;
4068
4069 /* but authenticated/associated only if driver handles it */
4070 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4071 params->sta_flags_mask &
4072 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4073 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4074 return -EINVAL;
4075 break;
4076 case CFG80211_STA_IBSS:
4077 case CFG80211_STA_AP_STA:
4078 /* reject any changes other than AUTHORIZED */
4079 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4080 return -EINVAL;
4081 break;
4082 case CFG80211_STA_TDLS_PEER_SETUP:
4083 /* reject any changes other than AUTHORIZED or WME */
4084 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4085 BIT(NL80211_STA_FLAG_WME)))
4086 return -EINVAL;
4087 /* force (at least) rates when authorizing */
4088 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4089 !params->supported_rates)
4090 return -EINVAL;
4091 break;
4092 case CFG80211_STA_TDLS_PEER_ACTIVE:
4093 /* reject any changes */
4094 return -EINVAL;
eef941e6 4095 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4096 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4097 return -EINVAL;
4098 break;
eef941e6 4099 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4100 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4101 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4102 return -EINVAL;
4103 break;
4104 }
4105
4106 return 0;
4107}
4108EXPORT_SYMBOL(cfg80211_check_station_change);
4109
5727ef1b 4110/*
c258d2de 4111 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4112 */
80b99899
JB		 4113static struct net_device *get_vlan(struct genl_info *info,
4114 struct cfg80211_registered_device *rdev)
5727ef1b 4115{
463d0183 4116 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4117 struct net_device *v;
4118 int ret;
4119
4120 if (!vlanattr)
4121 return NULL;
4122
4123 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4124 if (!v)
4125 return ERR_PTR(-ENODEV);
4126
4127 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4128 ret = -EINVAL;
4129 goto error;
5727ef1b 4130 }
80b99899 4131
77ee7c89
JB		 4132 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4133 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4134 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4135 ret = -EINVAL;
4136 goto error;
4137 }
4138
80b99899
JB		 4139 if (!netif_running(v)) {
4140 ret = -ENETDOWN;
4141 goto error;
4142 }
4143
4144 return v;
4145 error:
4146 dev_put(v);
4147 return ERR_PTR(ret);
5727ef1b
JB		 4148}
4149
94e860f1
JB		 4150static const struct nla_policy
4151nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4152 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4153 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4154};
4155
ff276691
JB		 4156static int nl80211_parse_sta_wme(struct genl_info *info,
4157 struct station_parameters *params)
df881293 4158{
df881293
JM		 4159 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4160 struct nlattr *nla;
4161 int err;
4162
df881293
JM		 4163 /* parse WME attributes if present */
4164 if (!info->attrs[NL80211_ATTR_STA_WME])
4165 return 0;
4166
4167 nla = info->attrs[NL80211_ATTR_STA_WME];
4168 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4169 nl80211_sta_wme_policy);
4170 if (err)
4171 return err;
4172
4173 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4174 params->uapsd_queues = nla_get_u8(
4175 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4176 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4177 return -EINVAL;
4178
4179 if (tb[NL80211_STA_WME_MAX_SP])
4180 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4181
4182 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4183 return -EINVAL;
4184
4185 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4186
4187 return 0;
4188}
4189
c01fc9ad
SD		 4190static int nl80211_parse_sta_channel_info(struct genl_info *info,
4191 struct station_parameters *params)
4192{
4193 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4194 params->supported_channels =
4195 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4196 params->supported_channels_len =
4197 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4198 /*
4199 * Need to include at least one (first channel, number of
4200 * channels) tuple for each subband, and must have proper
4201 * tuples for the rest of the data as well.
4202 */
4203 if (params->supported_channels_len < 2)
4204 return -EINVAL;
4205 if (params->supported_channels_len % 2)
4206 return -EINVAL;
4207 }
4208
4209 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4210 params->supported_oper_classes =
4211 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4212 params->supported_oper_classes_len =
4213 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4214 /*
4215 * The value of the Length field of the Supported Operating
4216 * Classes element is between 2 and 253.
4217 */
4218 if (params->supported_oper_classes_len < 2 ||
4219 params->supported_oper_classes_len > 253)
4220 return -EINVAL;
4221 }
4222 return 0;
4223}
4224
ff276691
JB		 4225static int nl80211_set_station_tdls(struct genl_info *info,
4226 struct station_parameters *params)
4227{
c01fc9ad 4228 int err;
ff276691 4229 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4230 if (info->attrs[NL80211_ATTR_PEER_AID])
4231 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4232 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4233 params->ht_capa =
4234 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4235 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4236 params->vht_capa =
4237 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4238
c01fc9ad
SD		 4239 err = nl80211_parse_sta_channel_info(info, params);
4240 if (err)
4241 return err;
4242
ff276691
JB		 4243 return nl80211_parse_sta_wme(info, params);
4244}
4245
5727ef1b
JB		 4246static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4247{
4c476991 4248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4249 struct net_device *dev = info->user_ptr[1];
5727ef1b 4250 struct station_parameters params;
77ee7c89
JB		 4251 u8 *mac_addr;
4252 int err;
5727ef1b
JB		 4253
4254 memset(&params, 0, sizeof(params));
4255
77ee7c89
JB		 4256 if (!rdev->ops->change_station)
4257 return -EOPNOTSUPP;
4258
e4208427
AB		 4259 /*
4260 * AID and listen_interval properties can be set only for unassociated
4261 * station. Include these parameters here and will check them in
4262 * cfg80211_check_station_change().
4263 */
a9bc31e4
AB		 4264 if (info->attrs[NL80211_ATTR_STA_AID])
4265 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4266
4267 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4268 params.listen_interval =
4269 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4270 else
4271 params.listen_interval = -1;
5727ef1b
JB		 4272
4273 if (!info->attrs[NL80211_ATTR_MAC])
4274 return -EINVAL;
4275
4276 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4277
4278 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4279 params.supported_rates =
4280 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4281 params.supported_rates_len =
4282 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4283 }
4284
9d62a986
JM		 4285 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4286 params.capability =
4287 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4288 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4289 }
4290
4291 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4292 params.ext_capab =
4293 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4294 params.ext_capab_len =
4295 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4296 }
4297
bdd3ae3d 4298 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4299 return -EINVAL;
4300
f8bacc21 4301 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4302 params.plink_action =
f8bacc21
JB		 4303 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4304 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4305 return -EINVAL;
4306 }
2ec600d6 4307
f8bacc21 4308 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4309 params.plink_state =
f8bacc21
JB		 4310 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4311 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4312 return -EINVAL;
4313 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4314 }
9c3990aa 4315
3b1c5a53
MP		 4316 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4317 enum nl80211_mesh_power_mode pm = nla_get_u32(
4318 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4319
4320 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4321 pm > NL80211_MESH_POWER_MAX)
4322 return -EINVAL;
4323
4324 params.local_pm = pm;
4325 }
4326
77ee7c89
JB		 4327 /* Include parameters for TDLS peer (will check later) */
4328 err = nl80211_set_station_tdls(info, &params);
4329 if (err)
4330 return err;
4331
4332 params.vlan = get_vlan(info, rdev);
4333 if (IS_ERR(params.vlan))
4334 return PTR_ERR(params.vlan);
4335
a97f4424
JB		 4336 switch (dev->ieee80211_ptr->iftype) {
4337 case NL80211_IFTYPE_AP:
4338 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4339 case NL80211_IFTYPE_P2P_GO:
074ac8df 4340 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4341 case NL80211_IFTYPE_STATION:
267335d6 4342 case NL80211_IFTYPE_ADHOC:
a97f4424 4343 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4344 break;
4345 default:
77ee7c89
JB		 4346 err = -EOPNOTSUPP;
4347 goto out_put_vlan;
034d655e
JB		 4348 }
4349
77ee7c89 4350 /* driver will call cfg80211_check_station_change() */
e35e4d28 4351 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4352
77ee7c89 4353 out_put_vlan:
5727ef1b
JB		 4354 if (params.vlan)
4355 dev_put(params.vlan);
3b85875a 4356
5727ef1b
JB		 4357 return err;
4358}
4359
4360static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4361{
4c476991 4362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4363 int err;
4c476991 4364 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4365 struct station_parameters params;
4366 u8 *mac_addr = NULL;
bda95eb1
JB		 4367 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4368 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4369
4370 memset(&params, 0, sizeof(params));
4371
984c311b
JB		 4372 if (!rdev->ops->add_station)
4373 return -EOPNOTSUPP;
4374
5727ef1b
JB		 4375 if (!info->attrs[NL80211_ATTR_MAC])
4376 return -EINVAL;
4377
5727ef1b
JB		 4378 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4379 return -EINVAL;
4380
4381 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4382 return -EINVAL;
4383
5e4b6f56
JM		 4384 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4385 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4386 return -EINVAL;
4387
5727ef1b
JB		 4388 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4389 params.supported_rates =
4390 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4391 params.supported_rates_len =
4392 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4393 params.listen_interval =
4394 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4395
3d124ea2 4396 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4397 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4398 else
4399 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4400 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4401 return -EINVAL;
51b50fbe 4402
9d62a986
JM		 4403 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4404 params.capability =
4405 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4406 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4407 }
4408
4409 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4410 params.ext_capab =
4411 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4412 params.ext_capab_len =
4413 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4414 }
4415
36aedc90
JM		 4416 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4417 params.ht_capa =
4418 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4419
f461be3e
MP		 4420 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4421 params.vht_capa =
4422 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4423
60f4a7b1
MK		 4424 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4425 params.opmode_notif_used = true;
4426 params.opmode_notif =
4427 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4428 }
4429
f8bacc21 4430 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4431 params.plink_action =
f8bacc21
JB		 4432 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4433 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4434 return -EINVAL;
4435 }
96b78dff 4436
c01fc9ad
SD		 4437 err = nl80211_parse_sta_channel_info(info, &params);
4438 if (err)
4439 return err;
4440
ff276691
JB		 4441 err = nl80211_parse_sta_wme(info, &params);
4442 if (err)
4443 return err;
bdd90d5e 4444
bdd3ae3d 4445 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4446 return -EINVAL;
4447
496fcc29
JB		 4448 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4449 * as userspace might just pass through the capabilities from the IEs
4450 * directly, rather than enforcing this restriction and returning an
4451 * error in this case.
4452 */
4453 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4454 params.ht_capa = NULL;
4455 params.vht_capa = NULL;
4456 }
4457
77ee7c89
JB		 4458 /* When you run into this, adjust the code below for the new flag */
4459 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4460
bdd90d5e
JB		 4461 switch (dev->ieee80211_ptr->iftype) {
4462 case NL80211_IFTYPE_AP:
4463 case NL80211_IFTYPE_AP_VLAN:
4464 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4465 /* ignore WME attributes if iface/sta is not capable */
4466 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4467 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4468 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4469
bdd90d5e 4470 /* TDLS peers cannot be added */
3d124ea2
JM		 4471 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4472 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4473 return -EINVAL;
bdd90d5e
JB		 4474 /* but don't bother the driver with it */
4475 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4476
d582cffb
JB		 4477 /* allow authenticated/associated only if driver handles it */
4478 if (!(rdev->wiphy.features &
4479 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4480 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4481 return -EINVAL;
4482
bda95eb1
JB		 4483 /* Older userspace, or userspace wanting to be compatible with
4484 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4485 * and assoc flags in the mask, but assumes the station will be
4486 * added as associated anyway since this was the required driver
4487 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4488 * introduced.
4489 * In order to not bother drivers with this quirk in the API
4490 * set the flags in both the mask and set for new stations in
4491 * this case.
4492 */
4493 if (!(params.sta_flags_mask & auth_assoc)) {
4494 params.sta_flags_mask |= auth_assoc;
4495 params.sta_flags_set |= auth_assoc;
4496 }
4497
bdd90d5e
JB		 4498 /* must be last in here for error handling */
4499 params.vlan = get_vlan(info, rdev);
4500 if (IS_ERR(params.vlan))
4501 return PTR_ERR(params.vlan);
4502 break;
4503 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4504 /* ignore uAPSD data */
4505 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4506
d582cffb
JB		 4507 /* associated is disallowed */
4508 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4509 return -EINVAL;
bdd90d5e 4510 /* TDLS peers cannot be added */
3d124ea2
JM		 4511 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4512 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4513 return -EINVAL;
4514 break;
4515 case NL80211_IFTYPE_STATION:
93d08f0b 4516 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4517 /* ignore uAPSD data */
4518 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4519
77ee7c89
JB		 4520 /* these are disallowed */
4521 if (params.sta_flags_mask &
4522 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4523 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4524 return -EINVAL;
bdd90d5e
JB		 4525 /* Only TDLS peers can be added */
4526 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4527 return -EINVAL;
4528 /* Can only add if TDLS ... */
4529 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4530 return -EOPNOTSUPP;
4531 /* ... with external setup is supported */
4532 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4533 return -EOPNOTSUPP;
77ee7c89
JB		 4534 /*
4535 * Older wpa_supplicant versions always mark the TDLS peer
4536 * as authorized, but it shouldn't yet be.
4537 */
4538 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4539 break;
4540 default:
4541 return -EOPNOTSUPP;
c75786c9
EP		 4542 }
4543
bdd90d5e 4544 /* be aware of params.vlan when changing code here */
5727ef1b 4545
e35e4d28 4546 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4547
5727ef1b
JB		 4548 if (params.vlan)
4549 dev_put(params.vlan);
5727ef1b
JB		 4550 return err;
4551}
4552
4553static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4554{
4c476991
JB		 4555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4556 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4557 struct station_del_parameters params;
4558
4559 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4560
4561 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4562 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4563
e80cf853 4564 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4565 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4566 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4567 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4568 return -EINVAL;
5727ef1b 4569
4c476991
JB		 4570 if (!rdev->ops->del_station)
4571 return -EOPNOTSUPP;
3b85875a 4572
98856866
JM		 4573 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4574 params.subtype =
4575 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4576 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4577 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4578 return -EINVAL;
4579 } else {
4580 /* Default to Deauthentication frame */
4581 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4582 }
4583
4584 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4585 params.reason_code =
4586 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4587 if (params.reason_code == 0)
4588 return -EINVAL; /* 0 is reserved */
4589 } else {
4590 /* Default to reason code 2 */
4591 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4592 }
4593
89c771e5 4594 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4595}
4596
15e47304 4597static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4598 int flags, struct net_device *dev,
4599 u8 *dst, u8 *next_hop,
4600 struct mpath_info *pinfo)
4601{
4602 void *hdr;
4603 struct nlattr *pinfoattr;
4604
1ef4c850 4605 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4606 if (!hdr)
4607 return -1;
4608
9360ffd1
DM		 4609 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4610 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4611 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4612 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4613 goto nla_put_failure;
f5ea9120 4614
2ec600d6
LCC		 4615 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4616 if (!pinfoattr)
4617 goto nla_put_failure;
9360ffd1
DM		 4618 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4619 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4620 pinfo->frame_qlen))
4621 goto nla_put_failure;
4622 if (((pinfo->filled & MPATH_INFO_SN) &&
4623 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4624 ((pinfo->filled & MPATH_INFO_METRIC) &&
4625 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4626 pinfo->metric)) ||
4627 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4628 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4629 pinfo->exptime)) ||
4630 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4631 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4632 pinfo->flags)) ||
4633 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4634 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4635 pinfo->discovery_timeout)) ||
4636 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4637 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4638 pinfo->discovery_retries)))
4639 goto nla_put_failure;
2ec600d6
LCC		 4640
4641 nla_nest_end(msg, pinfoattr);
4642
053c095a
JB		 4643 genlmsg_end(msg, hdr);
4644 return 0;
2ec600d6
LCC		 4645
4646 nla_put_failure:
bc3ed28c
TG		 4647 genlmsg_cancel(msg, hdr);
4648 return -EMSGSIZE;
2ec600d6
LCC		 4649}
4650
4651static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4652 struct netlink_callback *cb)
2ec600d6 4653{
2ec600d6 4654 struct mpath_info pinfo;
1b8ec87a 4655 struct cfg80211_registered_device *rdev;
97990a06 4656 struct wireless_dev *wdev;
2ec600d6
LCC		 4657 u8 dst[ETH_ALEN];
4658 u8 next_hop[ETH_ALEN];
97990a06 4659 int path_idx = cb->args[2];
2ec600d6 4660 int err;
2ec600d6 4661
1b8ec87a 4662 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4663 if (err)
4664 return err;
bba95fef 4665
1b8ec87a 4666 if (!rdev->ops->dump_mpath) {
eec60b03 4667 err = -EOPNOTSUPP;
bba95fef
JB		 4668 goto out_err;
4669 }
4670
97990a06 4671 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4672 err = -EOPNOTSUPP;
0448b5fc 4673 goto out_err;
eec60b03
JM		 4674 }
4675
bba95fef 4676 while (1) {
1b8ec87a 4677 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4678 next_hop, &pinfo);
bba95fef 4679 if (err == -ENOENT)
2ec600d6 4680 break;
bba95fef 4681 if (err)
3b85875a 4682 goto out_err;
2ec600d6 4683
15e47304 4684 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4685 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4686 wdev->netdev, dst, next_hop,
bba95fef
JB		 4687 &pinfo) < 0)
4688 goto out;
2ec600d6 4689
bba95fef 4690 path_idx++;
2ec600d6 4691 }
2ec600d6 4692
2ec600d6 4693
bba95fef 4694 out:
97990a06 4695 cb->args[2] = path_idx;
bba95fef 4696 err = skb->len;
bba95fef 4697 out_err:
1b8ec87a 4698 nl80211_finish_wdev_dump(rdev);
bba95fef 4699 return err;
2ec600d6
LCC		 4700}
4701
4702static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4703{
4c476991 4704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4705 int err;
4c476991 4706 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4707 struct mpath_info pinfo;
4708 struct sk_buff *msg;
4709 u8 *dst = NULL;
4710 u8 next_hop[ETH_ALEN];
4711
4712 memset(&pinfo, 0, sizeof(pinfo));
4713
4714 if (!info->attrs[NL80211_ATTR_MAC])
4715 return -EINVAL;
4716
4717 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4718
4c476991
JB		 4719 if (!rdev->ops->get_mpath)
4720 return -EOPNOTSUPP;
2ec600d6 4721
4c476991
JB		 4722 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4723 return -EOPNOTSUPP;
eec60b03 4724
e35e4d28 4725 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4726 if (err)
4c476991 4727 return err;
2ec600d6 4728
fd2120ca 4729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4730 if (!msg)
4c476991 4731 return -ENOMEM;
2ec600d6 4732
15e47304 4733 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4734 dev, dst, next_hop, &pinfo) < 0) {
4735 nlmsg_free(msg);
4736 return -ENOBUFS;
4737 }
3b85875a 4738
4c476991 4739 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4740}
4741
4742static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4743{
4c476991
JB		 4744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4745 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4746 u8 *dst = NULL;
4747 u8 *next_hop = NULL;
4748
4749 if (!info->attrs[NL80211_ATTR_MAC])
4750 return -EINVAL;
4751
4752 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4753 return -EINVAL;
4754
4755 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4756 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4757
4c476991
JB		 4758 if (!rdev->ops->change_mpath)
4759 return -EOPNOTSUPP;
35a8efe1 4760
4c476991
JB		 4761 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4762 return -EOPNOTSUPP;
2ec600d6 4763
e35e4d28 4764 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4765}
4c476991 4766
2ec600d6
LCC		 4767static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4768{
4c476991
JB		 4769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4770 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4771 u8 *dst = NULL;
4772 u8 *next_hop = NULL;
4773
4774 if (!info->attrs[NL80211_ATTR_MAC])
4775 return -EINVAL;
4776
4777 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4778 return -EINVAL;
4779
4780 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4781 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4782
4c476991
JB		 4783 if (!rdev->ops->add_mpath)
4784 return -EOPNOTSUPP;
35a8efe1 4785
4c476991
JB		 4786 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4787 return -EOPNOTSUPP;
2ec600d6 4788
e35e4d28 4789 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4790}
4791
4792static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4793{
4c476991
JB		 4794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4795 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4796 u8 *dst = NULL;
4797
4798 if (info->attrs[NL80211_ATTR_MAC])
4799 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4800
4c476991
JB		 4801 if (!rdev->ops->del_mpath)
4802 return -EOPNOTSUPP;
3b85875a 4803
e35e4d28 4804 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4805}
4806
66be7d2b
HR		 4807static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4808{
4809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4810 int err;
4811 struct net_device *dev = info->user_ptr[1];
4812 struct mpath_info pinfo;
4813 struct sk_buff *msg;
4814 u8 *dst = NULL;
4815 u8 mpp[ETH_ALEN];
4816
4817 memset(&pinfo, 0, sizeof(pinfo));
4818
4819 if (!info->attrs[NL80211_ATTR_MAC])
4820 return -EINVAL;
4821
4822 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4823
4824 if (!rdev->ops->get_mpp)
4825 return -EOPNOTSUPP;
4826
4827 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4828 return -EOPNOTSUPP;
4829
4830 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4831 if (err)
4832 return err;
4833
4834 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4835 if (!msg)
4836 return -ENOMEM;
4837
4838 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4839 dev, dst, mpp, &pinfo) < 0) {
4840 nlmsg_free(msg);
4841 return -ENOBUFS;
4842 }
4843
4844 return genlmsg_reply(msg, info);
4845}
4846
4847static int nl80211_dump_mpp(struct sk_buff *skb,
4848 struct netlink_callback *cb)
4849{
4850 struct mpath_info pinfo;
4851 struct cfg80211_registered_device *rdev;
4852 struct wireless_dev *wdev;
4853 u8 dst[ETH_ALEN];
4854 u8 mpp[ETH_ALEN];
4855 int path_idx = cb->args[2];
4856 int err;
4857
4858 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4859 if (err)
4860 return err;
4861
4862 if (!rdev->ops->dump_mpp) {
4863 err = -EOPNOTSUPP;
4864 goto out_err;
4865 }
4866
4867 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4868 err = -EOPNOTSUPP;
4869 goto out_err;
4870 }
4871
4872 while (1) {
4873 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4874 mpp, &pinfo);
4875 if (err == -ENOENT)
4876 break;
4877 if (err)
4878 goto out_err;
4879
4880 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4881 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4882 wdev->netdev, dst, mpp,
4883 &pinfo) < 0)
4884 goto out;
4885
4886 path_idx++;
4887 }
4888
4889 out:
4890 cb->args[2] = path_idx;
4891 err = skb->len;
4892 out_err:
4893 nl80211_finish_wdev_dump(rdev);
4894 return err;
4895}
4896
9f1ba906
JM		 4897static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4898{
4c476991
JB		 4899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4900 struct net_device *dev = info->user_ptr[1];
c56589ed 4901 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4902 struct bss_parameters params;
c56589ed 4903 int err;
9f1ba906
JM		 4904
4905 memset(&params, 0, sizeof(params));
4906 /* default to not changing parameters */
4907 params.use_cts_prot = -1;
4908 params.use_short_preamble = -1;
4909 params.use_short_slot_time = -1;
fd8aaaf3 4910 params.ap_isolate = -1;
50b12f59 4911 params.ht_opmode = -1;
53cabad7
JB		 4912 params.p2p_ctwindow = -1;
4913 params.p2p_opp_ps = -1;
9f1ba906
JM		 4914
4915 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4916 params.use_cts_prot =
4917 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4918 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4919 params.use_short_preamble =
4920 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4921 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4922 params.use_short_slot_time =
4923 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4924 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4925 params.basic_rates =
4926 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4927 params.basic_rates_len =
4928 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4929 }
fd8aaaf3
FF		 4930 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4931 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4932 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4933 params.ht_opmode =
4934 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4935
53cabad7
JB		 4936 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4937 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4938 return -EINVAL;
4939 params.p2p_ctwindow =
4940 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4941 if (params.p2p_ctwindow < 0)
4942 return -EINVAL;
4943 if (params.p2p_ctwindow != 0 &&
4944 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4945 return -EINVAL;
4946 }
4947
4948 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4949 u8 tmp;
4950
4951 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4952 return -EINVAL;
4953 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4954 if (tmp > 1)
4955 return -EINVAL;
4956 params.p2p_opp_ps = tmp;
4957 if (params.p2p_opp_ps &&
4958 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4959 return -EINVAL;
4960 }
4961
4c476991
JB		 4962 if (!rdev->ops->change_bss)
4963 return -EOPNOTSUPP;
9f1ba906 4964
074ac8df 4965 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4966 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4967 return -EOPNOTSUPP;
3b85875a 4968
c56589ed
SW		 4969 wdev_lock(wdev);
4970 err = rdev_change_bss(rdev, dev, &params);
4971 wdev_unlock(wdev);
4972
4973 return err;
9f1ba906
JM		 4974}
4975
b2e1b302
LR		 4976static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4977{
b2e1b302 4978 char *data = NULL;
05050753 4979 bool is_indoor;
57b5ce07 4980 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 4981 u32 owner_nlportid;
4982
b2e1b302 4983
80778f18
LR		 4984 /*
4985 * You should only get this when cfg80211 hasn't yet initialized
4986 * completely when built-in to the kernel right between the time
4987 * window between nl80211_init() and regulatory_init(), if that is
4988 * even possible.
4989 */
458f4f9e 4990 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4991 return -EINPROGRESS;
80778f18 4992
57b5ce07
LR		 4993 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4994 user_reg_hint_type =
4995 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4996 else
4997 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4998
4999 switch (user_reg_hint_type) {
5000 case NL80211_USER_REG_HINT_USER:
5001 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5002 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5003 return -EINVAL;
5004
5005 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5006 return regulatory_hint_user(data, user_reg_hint_type);
5007 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5008 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5009 owner_nlportid = info->snd_portid;
5010 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5011 } else {
5012 owner_nlportid = 0;
5013 is_indoor = true;
5014 }
5015
5016 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5017 default:
5018 return -EINVAL;
5019 }
b2e1b302
LR		 5020}
5021
24bdd9f4 5022static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5023 struct genl_info *info)
93da9cc1 5024{
4c476991 5025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5026 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5027 struct wireless_dev *wdev = dev->ieee80211_ptr;
5028 struct mesh_config cur_params;
5029 int err = 0;
93da9cc1 5030 void *hdr;
5031 struct nlattr *pinfoattr;
5032 struct sk_buff *msg;
5033
29cbe68c
JB		 5034 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5035 return -EOPNOTSUPP;
5036
24bdd9f4 5037 if (!rdev->ops->get_mesh_config)
4c476991 5038 return -EOPNOTSUPP;
f3f92586 5039
29cbe68c
JB		 5040 wdev_lock(wdev);
5041 /* If not connected, get default parameters */
5042 if (!wdev->mesh_id_len)
5043 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5044 else
e35e4d28 5045 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5046 wdev_unlock(wdev);
5047
93da9cc1 5048 if (err)
4c476991 5049 return err;
93da9cc1 5050
5051 /* Draw up a netlink message to send back */
fd2120ca 5052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5053 if (!msg)
5054 return -ENOMEM;
15e47304 5055 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5056 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5057 if (!hdr)
efe1cf0c 5058 goto out;
24bdd9f4 5059 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5060 if (!pinfoattr)
5061 goto nla_put_failure;
9360ffd1
DM		 5062 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5063 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5064 cur_params.dot11MeshRetryTimeout) ||
5065 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5066 cur_params.dot11MeshConfirmTimeout) ||
5067 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5068 cur_params.dot11MeshHoldingTimeout) ||
5069 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5070 cur_params.dot11MeshMaxPeerLinks) ||
5071 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5072 cur_params.dot11MeshMaxRetries) ||
5073 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5074 cur_params.dot11MeshTTL) ||
5075 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5076 cur_params.element_ttl) ||
5077 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5078 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5079 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5080 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5081 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5082 cur_params.dot11MeshHWMPmaxPREQretries) ||
5083 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5084 cur_params.path_refresh_time) ||
5085 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5086 cur_params.min_discovery_timeout) ||
5087 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5088 cur_params.dot11MeshHWMPactivePathTimeout) ||
5089 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5090 cur_params.dot11MeshHWMPpreqMinInterval) ||
5091 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5092 cur_params.dot11MeshHWMPperrMinInterval) ||
5093 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5094 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5095 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5096 cur_params.dot11MeshHWMPRootMode) ||
5097 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5098 cur_params.dot11MeshHWMPRannInterval) ||
5099 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5100 cur_params.dot11MeshGateAnnouncementProtocol) ||
5101 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5102 cur_params.dot11MeshForwarding) ||
5103 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5104 cur_params.rssi_threshold) ||
5105 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5106 cur_params.ht_opmode) ||
5107 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5108 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5109 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5110 cur_params.dot11MeshHWMProotInterval) ||
5111 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5112 cur_params.dot11MeshHWMPconfirmationInterval) ||
5113 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5114 cur_params.power_mode) ||
5115 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5116 cur_params.dot11MeshAwakeWindowDuration) ||
5117 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5118 cur_params.plink_timeout))
9360ffd1 5119 goto nla_put_failure;
93da9cc1 5120 nla_nest_end(msg, pinfoattr);
5121 genlmsg_end(msg, hdr);
4c476991 5122 return genlmsg_reply(msg, info);
93da9cc1 5123
3b85875a 5124 nla_put_failure:
93da9cc1 5125 genlmsg_cancel(msg, hdr);
efe1cf0c 5126 out:
d080e275 5127 nlmsg_free(msg);
4c476991 5128 return -ENOBUFS;
93da9cc1 5129}
5130
b54452b0 5131static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5132 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5133 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5134 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5135 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5136 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5137 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5138 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5139 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5140 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5141 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5142 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5143 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5144 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5145 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5146 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5147 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5148 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5149 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5150 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5151 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5152 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5153 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5154 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5155 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5156 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5157 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5158 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5159 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5160};
5161
c80d545d
JC		 5162static const struct nla_policy
5163 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5164 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5165 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5166 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5167 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5168 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5169 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5170 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5171 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5172 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5173};
5174
24bdd9f4 5175static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5176 struct mesh_config *cfg,
5177 u32 *mask_out)
93da9cc1 5178{
93da9cc1 5179 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5180 u32 mask = 0;
93da9cc1 5181
ea54fba2
MP		 5182#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5183do { \
5184 if (tb[attr]) { \
5185 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5186 return -EINVAL; \
5187 cfg->param = fn(tb[attr]); \
5188 mask |= (1 << (attr - 1)); \
5189 } \
5190} while (0)
bd90fdcc
JB		 5191
5192
24bdd9f4 5193 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5194 return -EINVAL;
5195 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5196 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5197 nl80211_meshconf_params_policy))
93da9cc1 5198 return -EINVAL;
5199
93da9cc1 5200 /* This makes sure that there aren't more than 32 mesh config
5201 * parameters (otherwise our bitfield scheme would not work.) */
5202 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5203
5204 /* Fill in the params struct */
ea54fba2 5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5206 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5207 nla_get_u16);
ea54fba2 5208 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5209 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5210 nla_get_u16);
ea54fba2 5211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5212 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5213 nla_get_u16);
ea54fba2 5214 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5215 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5216 nla_get_u16);
ea54fba2 5217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5218 mask, NL80211_MESHCONF_MAX_RETRIES,
5219 nla_get_u8);
ea54fba2 5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5221 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5222 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5223 mask, NL80211_MESHCONF_ELEMENT_TTL,
5224 nla_get_u8);
ea54fba2 5225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5226 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5227 nla_get_u8);
ea54fba2
MP		 5228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5229 1, 255, mask,
a4f606ea
CYY		 5230 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5231 nla_get_u32);
ea54fba2 5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5233 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5234 nla_get_u8);
ea54fba2 5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5236 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5237 nla_get_u32);
ea54fba2 5238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5239 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5240 nla_get_u16);
ea54fba2
MP		 5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5242 1, 65535, mask,
a4f606ea
CYY		 5243 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5244 nla_get_u32);
93da9cc1 5245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5246 1, 65535, mask,
5247 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5248 nla_get_u16);
dca7e943 5249 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5250 1, 65535, mask,
5251 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5252 nla_get_u16);
93da9cc1 5253 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5254 dot11MeshHWMPnetDiameterTraversalTime,
5255 1, 65535, mask,
a4f606ea
CYY		 5256 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5257 nla_get_u16);
ea54fba2
MP		 5258 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5259 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5260 nla_get_u8);
5261 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5262 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5263 nla_get_u16);
63c5723b 5264 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5265 dot11MeshGateAnnouncementProtocol, 0, 1,
5266 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5267 nla_get_u8);
ea54fba2 5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5269 mask, NL80211_MESHCONF_FORWARDING,
5270 nla_get_u8);
83374fe9 5271 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5272 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5273 nla_get_s32);
ea54fba2 5274 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5275 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5276 nla_get_u16);
5277 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5278 1, 65535, mask,
ac1073a6
CYY		 5279 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5280 nla_get_u32);
ea54fba2 5281 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5282 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5283 nla_get_u16);
5284 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5285 dot11MeshHWMPconfirmationInterval,
5286 1, 65535, mask,
728b19e5 5287 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5288 nla_get_u16);
3b1c5a53
MP		 5289 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5290 NL80211_MESH_POWER_ACTIVE,
5291 NL80211_MESH_POWER_MAX,
5292 mask, NL80211_MESHCONF_POWER_MODE,
5293 nla_get_u32);
5294 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5295 0, 65535, mask,
5296 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5297 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5298 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5299 nla_get_u32);
bd90fdcc
JB		 5300 if (mask_out)
5301 *mask_out = mask;
c80d545d 5302
bd90fdcc
JB		 5303 return 0;
5304
5305#undef FILL_IN_MESH_PARAM_IF_SET
5306}
5307
c80d545d
JC		 5308static int nl80211_parse_mesh_setup(struct genl_info *info,
5309 struct mesh_setup *setup)
5310{
bb2798d4 5311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5312 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5313
5314 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5315 return -EINVAL;
5316 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5317 info->attrs[NL80211_ATTR_MESH_SETUP],
5318 nl80211_mesh_setup_params_policy))
5319 return -EINVAL;
5320
d299a1f2
JC		 5321 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5322 setup->sync_method =
5323 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5324 IEEE80211_SYNC_METHOD_VENDOR :
5325 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5326
c80d545d
JC		 5327 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5328 setup->path_sel_proto =
5329 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5330 IEEE80211_PATH_PROTOCOL_VENDOR :
5331 IEEE80211_PATH_PROTOCOL_HWMP;
5332
5333 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5334 setup->path_metric =
5335 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5336 IEEE80211_PATH_METRIC_VENDOR :
5337 IEEE80211_PATH_METRIC_AIRTIME;
5338
581a8b0f
JC		 5339
5340 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5341 struct nlattr *ieattr =
581a8b0f 5342 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5343 if (!is_valid_ie_attr(ieattr))
5344 return -EINVAL;
581a8b0f
JC		 5345 setup->ie = nla_data(ieattr);
5346 setup->ie_len = nla_len(ieattr);
c80d545d 5347 }
bb2798d4
TP		 5348 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5349 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5350 return -EINVAL;
5351 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5352 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5353 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5354 if (setup->is_secure)
5355 setup->user_mpm = true;
c80d545d 5356
6e16d90b
CT		 5357 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5358 if (!setup->user_mpm)
5359 return -EINVAL;
5360 setup->auth_id =
5361 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5362 }
5363
c80d545d
JC		 5364 return 0;
5365}
5366
24bdd9f4 5367static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5368 struct genl_info *info)
bd90fdcc
JB		 5369{
5370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5371 struct net_device *dev = info->user_ptr[1];
29cbe68c 5372 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5373 struct mesh_config cfg;
5374 u32 mask;
5375 int err;
5376
29cbe68c
JB		 5377 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5378 return -EOPNOTSUPP;
5379
24bdd9f4 5380 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5381 return -EOPNOTSUPP;
5382
24bdd9f4 5383 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5384 if (err)
5385 return err;
5386
29cbe68c
JB		 5387 wdev_lock(wdev);
5388 if (!wdev->mesh_id_len)
5389 err = -ENOLINK;
5390
5391 if (!err)
e35e4d28 5392 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5393
5394 wdev_unlock(wdev);
5395
5396 return err;
93da9cc1 5397}
5398
ad30ca2c
AN		 5399static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5400 struct sk_buff *msg)
f130347c 5401{
f130347c
LR		 5402 struct nlattr *nl_reg_rules;
5403 unsigned int i;
f130347c 5404
458f4f9e
JB		 5405 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5406 (regdom->dfs_region &&
5407 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5408 goto nla_put_failure;
458f4f9e 5409
f130347c
LR		 5410 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5411 if (!nl_reg_rules)
ad30ca2c 5412 goto nla_put_failure;
f130347c 5413
458f4f9e 5414 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5415 struct nlattr *nl_reg_rule;
5416 const struct ieee80211_reg_rule *reg_rule;
5417 const struct ieee80211_freq_range *freq_range;
5418 const struct ieee80211_power_rule *power_rule;
97524820 5419 unsigned int max_bandwidth_khz;
f130347c 5420
458f4f9e 5421 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5422 freq_range = &reg_rule->freq_range;
5423 power_rule = &reg_rule->power_rule;
5424
5425 nl_reg_rule = nla_nest_start(msg, i);
5426 if (!nl_reg_rule)
ad30ca2c 5427 goto nla_put_failure;
f130347c 5428
97524820
JD		 5429 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5430 if (!max_bandwidth_khz)
5431 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5432 reg_rule);
5433
9360ffd1
DM		 5434 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5435 reg_rule->flags) ||
5436 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5437 freq_range->start_freq_khz) ||
5438 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5439 freq_range->end_freq_khz) ||
5440 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5441 max_bandwidth_khz) ||
9360ffd1
DM		 5442 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5443 power_rule->max_antenna_gain) ||
5444 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5445 power_rule->max_eirp) ||
5446 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5447 reg_rule->dfs_cac_ms))
ad30ca2c 5448 goto nla_put_failure;
f130347c
LR		 5449
5450 nla_nest_end(msg, nl_reg_rule);
5451 }
5452
5453 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5454 return 0;
5455
5456nla_put_failure:
5457 return -EMSGSIZE;
5458}
5459
5460static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5461{
5462 const struct ieee80211_regdomain *regdom = NULL;
5463 struct cfg80211_registered_device *rdev;
5464 struct wiphy *wiphy = NULL;
5465 struct sk_buff *msg;
5466 void *hdr;
5467
5468 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5469 if (!msg)
5470 return -ENOBUFS;
5471
5472 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5473 NL80211_CMD_GET_REG);
5474 if (!hdr)
5475 goto put_failure;
5476
5477 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5478 bool self_managed;
5479
ad30ca2c
AN		 5480 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5481 if (IS_ERR(rdev)) {
5482 nlmsg_free(msg);
5483 return PTR_ERR(rdev);
5484 }
5485
5486 wiphy = &rdev->wiphy;
1bdd716c
AN		 5487 self_managed = wiphy->regulatory_flags &
5488 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5489 regdom = get_wiphy_regdom(wiphy);
5490
1bdd716c
AN		 5491 /* a self-managed-reg device must have a private regdom */
5492 if (WARN_ON(!regdom && self_managed)) {
5493 nlmsg_free(msg);
5494 return -EINVAL;
5495 }
5496
ad30ca2c
AN		 5497 if (regdom &&
5498 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5499 goto nla_put_failure;
5500 }
5501
5502 if (!wiphy && reg_last_request_cell_base() &&
5503 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5504 NL80211_USER_REG_HINT_CELL_BASE))
5505 goto nla_put_failure;
5506
5507 rcu_read_lock();
5508
5509 if (!regdom)
5510 regdom = rcu_dereference(cfg80211_regdomain);
5511
5512 if (nl80211_put_regdom(regdom, msg))
5513 goto nla_put_failure_rcu;
5514
5515 rcu_read_unlock();
f130347c
LR		 5516
5517 genlmsg_end(msg, hdr);
5fe231e8 5518 return genlmsg_reply(msg, info);
f130347c 5519
458f4f9e
JB		 5520nla_put_failure_rcu:
5521 rcu_read_unlock();
f130347c
LR		 5522nla_put_failure:
5523 genlmsg_cancel(msg, hdr);
efe1cf0c 5524put_failure:
d080e275 5525 nlmsg_free(msg);
5fe231e8 5526 return -EMSGSIZE;
f130347c
LR		 5527}
5528
ad30ca2c
AN		 5529static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5530 u32 seq, int flags, struct wiphy *wiphy,
5531 const struct ieee80211_regdomain *regdom)
5532{
5533 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5534 NL80211_CMD_GET_REG);
5535
5536 if (!hdr)
5537 return -1;
5538
5539 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5540
5541 if (nl80211_put_regdom(regdom, msg))
5542 goto nla_put_failure;
5543
5544 if (!wiphy && reg_last_request_cell_base() &&
5545 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5546 NL80211_USER_REG_HINT_CELL_BASE))
5547 goto nla_put_failure;
5548
5549 if (wiphy &&
5550 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5551 goto nla_put_failure;
5552
1bdd716c
AN		 5553 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5554 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5555 goto nla_put_failure;
5556
053c095a
JB		 5557 genlmsg_end(msg, hdr);
5558 return 0;
ad30ca2c
AN		 5559
5560nla_put_failure:
5561 genlmsg_cancel(msg, hdr);
5562 return -EMSGSIZE;
5563}
5564
5565static int nl80211_get_reg_dump(struct sk_buff *skb,
5566 struct netlink_callback *cb)
5567{
5568 const struct ieee80211_regdomain *regdom = NULL;
5569 struct cfg80211_registered_device *rdev;
5570 int err, reg_idx, start = cb->args[2];
5571
5572 rtnl_lock();
5573
5574 if (cfg80211_regdomain && start == 0) {
5575 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5576 NLM_F_MULTI, NULL,
5577 rtnl_dereference(cfg80211_regdomain));
5578 if (err < 0)
5579 goto out_err;
5580 }
5581
5582 /* the global regdom is idx 0 */
5583 reg_idx = 1;
5584 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5585 regdom = get_wiphy_regdom(&rdev->wiphy);
5586 if (!regdom)
5587 continue;
5588
5589 if (++reg_idx <= start)
5590 continue;
5591
5592 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5593 NLM_F_MULTI, &rdev->wiphy, regdom);
5594 if (err < 0) {
5595 reg_idx--;
5596 break;
5597 }
5598 }
5599
5600 cb->args[2] = reg_idx;
5601 err = skb->len;
5602out_err:
5603 rtnl_unlock();
5604 return err;
5605}
5606
b6863036
JB		 5607#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5608static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5609 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5610 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5611 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5612 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5613 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5614 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5615 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5616};
5617
5618static int parse_reg_rule(struct nlattr *tb[],
5619 struct ieee80211_reg_rule *reg_rule)
5620{
5621 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5622 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5623
5624 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5625 return -EINVAL;
5626 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5627 return -EINVAL;
5628 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5629 return -EINVAL;
5630 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5631 return -EINVAL;
5632 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5633 return -EINVAL;
5634
5635 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5636
5637 freq_range->start_freq_khz =
5638 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5639 freq_range->end_freq_khz =
5640 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5641 freq_range->max_bandwidth_khz =
5642 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5643
5644 power_rule->max_eirp =
5645 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5646
5647 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5648 power_rule->max_antenna_gain =
5649 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5650
5651 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5652 reg_rule->dfs_cac_ms =
5653 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5654
5655 return 0;
5656}
5657
b2e1b302
LR		 5658static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5659{
5660 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5661 struct nlattr *nl_reg_rule;
ea372c54
JB		 5662 char *alpha2;
5663 int rem_reg_rules, r;
b2e1b302 5664 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5665 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5666 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5667
5668 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5669 return -EINVAL;
5670
5671 if (!info->attrs[NL80211_ATTR_REG_RULES])
5672 return -EINVAL;
5673
5674 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5675
8b60b078
LR		 5676 if (info->attrs[NL80211_ATTR_DFS_REGION])
5677 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5678
b2e1b302 5679 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5680 rem_reg_rules) {
b2e1b302
LR		 5681 num_rules++;
5682 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5683 return -EINVAL;
b2e1b302
LR		 5684 }
5685
e438768f
LR		 5686 if (!reg_is_valid_request(alpha2))
5687 return -EINVAL;
5688
b2e1b302 5689 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5690 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5691
5692 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5693 if (!rd)
5694 return -ENOMEM;
b2e1b302
LR		 5695
5696 rd->n_reg_rules = num_rules;
5697 rd->alpha2[0] = alpha2[0];
5698 rd->alpha2[1] = alpha2[1];
5699
8b60b078
LR		 5700 /*
5701 * Disable DFS master mode if the DFS region was
5702 * not supported or known on this kernel.
5703 */
5704 if (reg_supported_dfs_region(dfs_region))
5705 rd->dfs_region = dfs_region;
5706
b2e1b302 5707 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5708 rem_reg_rules) {
ae811e21
JB		 5709 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5710 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5711 reg_rule_policy);
5712 if (r)
5713 goto bad_reg;
b2e1b302
LR		 5714 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5715 if (r)
5716 goto bad_reg;
5717
5718 rule_idx++;
5719
d0e18f83
LR		 5720 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5721 r = -EINVAL;
b2e1b302 5722 goto bad_reg;
d0e18f83 5723 }
b2e1b302
LR		 5724 }
5725
c37722bd 5726 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5727 /* set_regdom took ownership */
1a919318 5728 rd = NULL;
b2e1b302 5729
d2372b31 5730 bad_reg:
b2e1b302 5731 kfree(rd);
d0e18f83 5732 return r;
b2e1b302 5733}
b6863036 5734#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5735
83f5e2cf
JB		 5736static int validate_scan_freqs(struct nlattr *freqs)
5737{
5738 struct nlattr *attr1, *attr2;
5739 int n_channels = 0, tmp1, tmp2;
5740
5741 nla_for_each_nested(attr1, freqs, tmp1) {
5742 n_channels++;
5743 /*
5744 * Some hardware has a limited channel list for
5745 * scanning, and it is pretty much nonsensical
5746 * to scan for a channel twice, so disallow that
5747 * and don't require drivers to check that the
5748 * channel list they get isn't longer than what
5749 * they can scan, as long as they can scan all
5750 * the channels they registered at once.
5751 */
5752 nla_for_each_nested(attr2, freqs, tmp2)
5753 if (attr1 != attr2 &&
5754 nla_get_u32(attr1) == nla_get_u32(attr2))
5755 return 0;
5756 }
5757
5758 return n_channels;
5759}
5760
ad2b26ab
JB		 5761static int nl80211_parse_random_mac(struct nlattr **attrs,
5762 u8 *mac_addr, u8 *mac_addr_mask)
5763{
5764 int i;
5765
5766 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5767 eth_zero_addr(mac_addr);
5768 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5769 mac_addr[0] = 0x2;
5770 mac_addr_mask[0] = 0x3;
5771
5772 return 0;
5773 }
5774
5775 /* need both or none */
5776 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5777 return -EINVAL;
5778
5779 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5780 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5781
5782 /* don't allow or configure an mcast address */
5783 if (!is_multicast_ether_addr(mac_addr_mask) ||
5784 is_multicast_ether_addr(mac_addr))
5785 return -EINVAL;
5786
5787 /*
5788 * allow users to pass a MAC address that has bits set outside
5789 * of the mask, but don't bother drivers with having to deal
5790 * with such bits
5791 */
5792 for (i = 0; i < ETH_ALEN; i++)
5793 mac_addr[i] &= mac_addr_mask[i];
5794
5795 return 0;
5796}
5797
2a519311
JB		 5798static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5799{
4c476991 5800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5801 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5802 struct cfg80211_scan_request *request;
2a519311
JB		 5803 struct nlattr *attr;
5804 struct wiphy *wiphy;
83f5e2cf 5805 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5806 size_t ie_len;
2a519311 5807
f4a11bb0
JB		 5808 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5809 return -EINVAL;
5810
79c97e97 5811 wiphy = &rdev->wiphy;
2a519311 5812
4c476991
JB		 5813 if (!rdev->ops->scan)
5814 return -EOPNOTSUPP;
2a519311 5815
f9d15d16 5816 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5817 err = -EBUSY;
5818 goto unlock;
5819 }
2a519311
JB		 5820
5821 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5822 n_channels = validate_scan_freqs(
5823 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5824 if (!n_channels) {
5825 err = -EINVAL;
5826 goto unlock;
5827 }
2a519311 5828 } else {
bdfbec2d 5829 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5830 }
5831
5832 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5833 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5834 n_ssids++;
5835
f9f47529
JB		 5836 if (n_ssids > wiphy->max_scan_ssids) {
5837 err = -EINVAL;
5838 goto unlock;
5839 }
2a519311 5840
70692ad2
JM		 5841 if (info->attrs[NL80211_ATTR_IE])
5842 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5843 else
5844 ie_len = 0;
5845
f9f47529
JB		 5846 if (ie_len > wiphy->max_scan_ie_len) {
5847 err = -EINVAL;
5848 goto unlock;
5849 }
18a83659 5850
2a519311 5851 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5852 + sizeof(*request->ssids) * n_ssids
5853 + sizeof(*request->channels) * n_channels
70692ad2 5854 + ie_len, GFP_KERNEL);
f9f47529
JB		 5855 if (!request) {
5856 err = -ENOMEM;
5857 goto unlock;
5858 }
2a519311 5859
2a519311 5860 if (n_ssids)
5ba63533 5861 request->ssids = (void *)&request->channels[n_channels];
2a519311 5862 request->n_ssids = n_ssids;
70692ad2 5863 if (ie_len) {
13874e4b 5864 if (n_ssids)
70692ad2
JM		 5865 request->ie = (void *)(request->ssids + n_ssids);
5866 else
5867 request->ie = (void *)(request->channels + n_channels);
5868 }
2a519311 5869
584991dc 5870 i = 0;
2a519311
JB		 5871 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5872 /* user specified, bail out if channel not found */
2a519311 5873 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5874 struct ieee80211_channel *chan;
5875
5876 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5877
5878 if (!chan) {
2a519311
JB		 5879 err = -EINVAL;
5880 goto out_free;
5881 }
584991dc
JB		 5882
5883 /* ignore disabled channels */
5884 if (chan->flags & IEEE80211_CHAN_DISABLED)
5885 continue;
5886
5887 request->channels[i] = chan;
2a519311
JB		 5888 i++;
5889 }
5890 } else {
34850ab2
JB		 5891 enum ieee80211_band band;
5892
2a519311 5893 /* all channels */
2a519311
JB		 5894 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5895 int j;
5896 if (!wiphy->bands[band])
5897 continue;
5898 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5899 struct ieee80211_channel *chan;
5900
5901 chan = &wiphy->bands[band]->channels[j];
5902
5903 if (chan->flags & IEEE80211_CHAN_DISABLED)
5904 continue;
5905
5906 request->channels[i] = chan;
2a519311
JB		 5907 i++;
5908 }
5909 }
5910 }
5911
584991dc
JB		 5912 if (!i) {
5913 err = -EINVAL;
5914 goto out_free;
5915 }
5916
5917 request->n_channels = i;
5918
2a519311 5919 i = 0;
13874e4b 5920 if (n_ssids) {
2a519311 5921 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5922 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5923 err = -EINVAL;
5924 goto out_free;
5925 }
57a27e1d 5926 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5927 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5928 i++;
5929 }
5930 }
5931
70692ad2
JM		 5932 if (info->attrs[NL80211_ATTR_IE]) {
5933 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5934 memcpy((void *)request->ie,
5935 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5936 request->ie_len);
5937 }
5938
34850ab2 5939 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5940 if (wiphy->bands[i])
5941 request->rates[i] =
5942 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5943
5944 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5945 nla_for_each_nested(attr,
5946 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5947 tmp) {
5948 enum ieee80211_band band = nla_type(attr);
5949
84404623 5950 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5951 err = -EINVAL;
5952 goto out_free;
5953 }
1b09cd82
FF		 5954
5955 if (!wiphy->bands[band])
5956 continue;
5957
34850ab2
JB		 5958 err = ieee80211_get_ratemask(wiphy->bands[band],
5959 nla_data(attr),
5960 nla_len(attr),
5961 &request->rates[band]);
5962 if (err)
5963 goto out_free;
5964 }
5965 }
5966
46856bbf 5967 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5968 request->flags = nla_get_u32(
5969 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5970 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5971 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5972 err = -EOPNOTSUPP;
5973 goto out_free;
5974 }
ad2b26ab
JB		 5975
5976 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5977 if (!(wiphy->features &
5978 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5979 err = -EOPNOTSUPP;
5980 goto out_free;
5981 }
5982
5983 if (wdev->current_bss) {
5984 err = -EOPNOTSUPP;
5985 goto out_free;
5986 }
5987
5988 err = nl80211_parse_random_mac(info->attrs,
5989 request->mac_addr,
5990 request->mac_addr_mask);
5991 if (err)
5992 goto out_free;
5993 }
46856bbf 5994 }
ed473771 5995
e9f935e3
RM		 5996 request->no_cck =
5997 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5998
fd014284 5999 request->wdev = wdev;
79c97e97 6000 request->wiphy = &rdev->wiphy;
15d6030b 6001 request->scan_start = jiffies;
2a519311 6002
79c97e97 6003 rdev->scan_req = request;
e35e4d28 6004 err = rdev_scan(rdev, request);
2a519311 6005
463d0183 6006 if (!err) {
fd014284
JB		 6007 nl80211_send_scan_start(rdev, wdev);
6008 if (wdev->netdev)
6009 dev_hold(wdev->netdev);
4c476991 6010 } else {
2a519311 6011 out_free:
79c97e97 6012 rdev->scan_req = NULL;
2a519311
JB		 6013 kfree(request);
6014 }
3b85875a 6015
f9f47529 6016 unlock:
2a519311
JB		 6017 return err;
6018}
6019
91d3ab46
VK		 6020static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6021{
6022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6023 struct wireless_dev *wdev = info->user_ptr[1];
6024
6025 if (!rdev->ops->abort_scan)
6026 return -EOPNOTSUPP;
6027
6028 if (rdev->scan_msg)
6029 return 0;
6030
6031 if (!rdev->scan_req)
6032 return -ENOENT;
6033
6034 rdev_abort_scan(rdev, wdev);
6035 return 0;
6036}
6037
3b06d277
AS		 6038static int
6039nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6040 struct cfg80211_sched_scan_request *request,
6041 struct nlattr **attrs)
6042{
6043 int tmp, err, i = 0;
6044 struct nlattr *attr;
6045
6046 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6047 u32 interval;
6048
6049 /*
6050 * If scan plans are not specified,
6051 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6052 * case one scan plan will be set with the specified scan
6053 * interval and infinite number of iterations.
6054 */
6055 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6056 return -EINVAL;
6057
6058 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6059 if (!interval)
6060 return -EINVAL;
6061
6062 request->scan_plans[0].interval =
6063 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6064 if (!request->scan_plans[0].interval)
6065 return -EINVAL;
6066
6067 if (request->scan_plans[0].interval >
6068 wiphy->max_sched_scan_plan_interval)
6069 request->scan_plans[0].interval =
6070 wiphy->max_sched_scan_plan_interval;
6071
6072 return 0;
6073 }
6074
6075 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6076 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6077
6078 if (WARN_ON(i >= n_plans))
6079 return -EINVAL;
6080
6081 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6082 nla_data(attr), nla_len(attr),
6083 nl80211_plan_policy);
6084 if (err)
6085 return err;
6086
6087 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6088 return -EINVAL;
6089
6090 request->scan_plans[i].interval =
6091 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6092 if (!request->scan_plans[i].interval ||
6093 request->scan_plans[i].interval >
6094 wiphy->max_sched_scan_plan_interval)
6095 return -EINVAL;
6096
6097 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6098 request->scan_plans[i].iterations =
6099 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6100 if (!request->scan_plans[i].iterations ||
6101 (request->scan_plans[i].iterations >
6102 wiphy->max_sched_scan_plan_iterations))
6103 return -EINVAL;
6104 } else if (i < n_plans - 1) {
6105 /*
6106 * All scan plans but the last one must specify
6107 * a finite number of iterations
6108 */
6109 return -EINVAL;
6110 }
6111
6112 i++;
6113 }
6114
6115 /*
6116 * The last scan plan must not specify the number of
6117 * iterations, it is supposed to run infinitely
6118 */
6119 if (request->scan_plans[n_plans - 1].iterations)
6120 return -EINVAL;
6121
6122 return 0;
6123}
6124
256da02d 6125static struct cfg80211_sched_scan_request *
ad2b26ab 6126nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6127 struct nlattr **attrs)
807f8a8c
LC		 6128{
6129 struct cfg80211_sched_scan_request *request;
807f8a8c 6130 struct nlattr *attr;
3b06d277 6131 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
807f8a8c
LC		 6132 enum ieee80211_band band;
6133 size_t ie_len;
a1f1c21c 6134 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6135 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6136
256da02d
LC		 6137 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6138 return ERR_PTR(-EINVAL);
807f8a8c 6139
256da02d 6140 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6141 n_channels = validate_scan_freqs(
256da02d 6142 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6143 if (!n_channels)
256da02d 6144 return ERR_PTR(-EINVAL);
807f8a8c 6145 } else {
bdfbec2d 6146 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6147 }
6148
256da02d
LC		 6149 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6150 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6151 tmp)
6152 n_ssids++;
6153
93b6aa69 6154 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6155 return ERR_PTR(-EINVAL);
807f8a8c 6156
ea73cbce
JB		 6157 /*
6158 * First, count the number of 'real' matchsets. Due to an issue with
6159 * the old implementation, matchsets containing only the RSSI attribute
6160 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6161 * RSSI for all matchsets, rather than their own matchset for reporting
6162 * all APs with a strong RSSI. This is needed to be compatible with
6163 * older userspace that treated a matchset with only the RSSI as the
6164 * global RSSI for all other matchsets - if there are other matchsets.
6165 */
256da02d 6166 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6167 nla_for_each_nested(attr,
256da02d 6168 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6169 tmp) {
6170 struct nlattr *rssi;
6171
6172 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6173 nla_data(attr), nla_len(attr),
6174 nl80211_match_policy);
6175 if (err)
256da02d 6176 return ERR_PTR(err);
ea73cbce
JB		 6177 /* add other standalone attributes here */
6178 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6179 n_match_sets++;
6180 continue;
6181 }
6182 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6183 if (rssi)
6184 default_match_rssi = nla_get_s32(rssi);
6185 }
6186 }
6187
6188 /* However, if there's no other matchset, add the RSSI one */
6189 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6190 n_match_sets = 1;
a1f1c21c
LC		 6191
6192 if (n_match_sets > wiphy->max_match_sets)
256da02d 6193 return ERR_PTR(-EINVAL);
a1f1c21c 6194
256da02d
LC		 6195 if (attrs[NL80211_ATTR_IE])
6196 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6197 else
6198 ie_len = 0;
6199
5a865bad 6200 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6201 return ERR_PTR(-EINVAL);
c10841ca 6202
3b06d277
AS		 6203 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6204 /*
6205 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6206 * each scan plan already specifies its own interval
6207 */
6208 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6209 return ERR_PTR(-EINVAL);
6210
6211 nla_for_each_nested(attr,
6212 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6213 n_plans++;
6214 } else {
6215 /*
6216 * The scan interval attribute is kept for backward
6217 * compatibility. If no scan plans are specified and sched scan
6218 * interval is specified, one scan plan will be set with this
6219 * scan interval and infinite number of iterations.
6220 */
6221 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6222 return ERR_PTR(-EINVAL);
6223
6224 n_plans = 1;
6225 }
6226
6227 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6228 return ERR_PTR(-EINVAL);
6229
807f8a8c 6230 request = kzalloc(sizeof(*request)
a2cd43c5 6231 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6232 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6233 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6234 + sizeof(*request->channels) * n_channels
807f8a8c 6235 + ie_len, GFP_KERNEL);
256da02d
LC		 6236 if (!request)
6237 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6238
6239 if (n_ssids)
6240 request->ssids = (void *)&request->channels[n_channels];
6241 request->n_ssids = n_ssids;
6242 if (ie_len) {
13874e4b 6243 if (n_ssids)
807f8a8c
LC		 6244 request->ie = (void *)(request->ssids + n_ssids);
6245 else
6246 request->ie = (void *)(request->channels + n_channels);
6247 }
6248
a1f1c21c
LC		 6249 if (n_match_sets) {
6250 if (request->ie)
6251 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6252 else if (n_ssids)
a1f1c21c
LC		 6253 request->match_sets =
6254 (void *)(request->ssids + n_ssids);
6255 else
6256 request->match_sets =
6257 (void *)(request->channels + n_channels);
6258 }
6259 request->n_match_sets = n_match_sets;
6260
3b06d277
AS		 6261 if (n_match_sets)
6262 request->scan_plans = (void *)(request->match_sets +
6263 n_match_sets);
6264 else if (request->ie)
6265 request->scan_plans = (void *)(request->ie + ie_len);
6266 else if (n_ssids)
6267 request->scan_plans = (void *)(request->ssids + n_ssids);
6268 else
6269 request->scan_plans = (void *)(request->channels + n_channels);
6270
6271 request->n_scan_plans = n_plans;
6272
807f8a8c 6273 i = 0;
256da02d 6274 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6275 /* user specified, bail out if channel not found */
6276 nla_for_each_nested(attr,
256da02d 6277 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6278 tmp) {
6279 struct ieee80211_channel *chan;
6280
6281 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6282
6283 if (!chan) {
6284 err = -EINVAL;
6285 goto out_free;
6286 }
6287
6288 /* ignore disabled channels */
6289 if (chan->flags & IEEE80211_CHAN_DISABLED)
6290 continue;
6291
6292 request->channels[i] = chan;
6293 i++;
6294 }
6295 } else {
6296 /* all channels */
6297 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6298 int j;
6299 if (!wiphy->bands[band])
6300 continue;
6301 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6302 struct ieee80211_channel *chan;
6303
6304 chan = &wiphy->bands[band]->channels[j];
6305
6306 if (chan->flags & IEEE80211_CHAN_DISABLED)
6307 continue;
6308
6309 request->channels[i] = chan;
6310 i++;
6311 }
6312 }
6313 }
6314
6315 if (!i) {
6316 err = -EINVAL;
6317 goto out_free;
6318 }
6319
6320 request->n_channels = i;
6321
6322 i = 0;
13874e4b 6323 if (n_ssids) {
256da02d 6324 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6325 tmp) {
57a27e1d 6326 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6327 err = -EINVAL;
6328 goto out_free;
6329 }
57a27e1d 6330 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6331 memcpy(request->ssids[i].ssid, nla_data(attr),
6332 nla_len(attr));
807f8a8c
LC		 6333 i++;
6334 }
6335 }
6336
a1f1c21c 6337 i = 0;
256da02d 6338 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6339 nla_for_each_nested(attr,
256da02d 6340 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6341 tmp) {
88e920b4 6342 struct nlattr *ssid, *rssi;
a1f1c21c 6343
ae811e21
JB		 6344 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6345 nla_data(attr), nla_len(attr),
6346 nl80211_match_policy);
6347 if (err)
6348 goto out_free;
4a4ab0d7 6349 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6350 if (ssid) {
ea73cbce
JB		 6351 if (WARN_ON(i >= n_match_sets)) {
6352 /* this indicates a programming error,
6353 * the loop above should have verified
6354 * things properly
6355 */
6356 err = -EINVAL;
6357 goto out_free;
6358 }
6359
a1f1c21c
LC		 6360 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6361 err = -EINVAL;
6362 goto out_free;
6363 }
6364 memcpy(request->match_sets[i].ssid.ssid,
6365 nla_data(ssid), nla_len(ssid));
6366 request->match_sets[i].ssid.ssid_len =
6367 nla_len(ssid);
ea73cbce
JB		 6368 /* special attribute - old implemenation w/a */
6369 request->match_sets[i].rssi_thold =
6370 default_match_rssi;
6371 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6372 if (rssi)
6373 request->match_sets[i].rssi_thold =
6374 nla_get_s32(rssi);
a1f1c21c
LC		 6375 }
6376 i++;
6377 }
ea73cbce
JB		 6378
6379 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6380 if (i == 0 && n_match_sets)
ea73cbce
JB		 6381 request->match_sets[0].rssi_thold = default_match_rssi;
6382
6383 request->min_rssi_thold = INT_MAX;
6384 for (i = 0; i < n_match_sets; i++)
6385 request->min_rssi_thold =
6386 min(request->match_sets[i].rssi_thold,
6387 request->min_rssi_thold);
6388 } else {
6389 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6390 }
6391
9900e484
JB		 6392 if (ie_len) {
6393 request->ie_len = ie_len;
807f8a8c 6394 memcpy((void *)request->ie,
256da02d 6395 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6396 request->ie_len);
6397 }
6398
256da02d 6399 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6400 request->flags = nla_get_u32(
256da02d 6401 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6402 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6403 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6404 err = -EOPNOTSUPP;
6405 goto out_free;
6406 }
ad2b26ab
JB		 6407
6408 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6409 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6410
6411 if (!wdev) /* must be net-detect */
6412 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6413
6414 if (!(wiphy->features & flg)) {
6415 err = -EOPNOTSUPP;
6416 goto out_free;
6417 }
6418
6419 if (wdev && wdev->current_bss) {
6420 err = -EOPNOTSUPP;
6421 goto out_free;
6422 }
6423
6424 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6425 request->mac_addr_mask);
6426 if (err)
6427 goto out_free;
6428 }
46856bbf 6429 }
ed473771 6430
9c748934
LC		 6431 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6432 request->delay =
6433 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6434
3b06d277
AS		 6435 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6436 if (err)
6437 goto out_free;
6438
15d6030b 6439 request->scan_start = jiffies;
807f8a8c 6440
256da02d 6441 return request;
807f8a8c
LC		 6442
6443out_free:
6444 kfree(request);
256da02d
LC		 6445 return ERR_PTR(err);
6446}
6447
6448static int nl80211_start_sched_scan(struct sk_buff *skb,
6449 struct genl_info *info)
6450{
6451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6452 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6453 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6454 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6455 int err;
6456
6457 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6458 !rdev->ops->sched_scan_start)
6459 return -EOPNOTSUPP;
6460
6461 if (rdev->sched_scan_req)
6462 return -EINPROGRESS;
6463
31a60ed1
JR		 6464 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6465 info->attrs);
6466
6467 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6468 if (err)
6469 goto out_err;
6470
31a60ed1 6471 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6472 if (err)
6473 goto out_free;
6474
31a60ed1
JR		 6475 sched_scan_req->dev = dev;
6476 sched_scan_req->wiphy = &rdev->wiphy;
6477
93a1e86c
JR		 6478 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6479 sched_scan_req->owner_nlportid = info->snd_portid;
6480
31a60ed1 6481 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6482
6483 nl80211_send_sched_scan(rdev, dev,
6484 NL80211_CMD_START_SCHED_SCAN);
6485 return 0;
6486
6487out_free:
31a60ed1 6488 kfree(sched_scan_req);
256da02d 6489out_err:
807f8a8c
LC		 6490 return err;
6491}
6492
6493static int nl80211_stop_sched_scan(struct sk_buff *skb,
6494 struct genl_info *info)
6495{
6496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6497
6498 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6499 !rdev->ops->sched_scan_stop)
6500 return -EOPNOTSUPP;
6501
5fe231e8 6502 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6503}
6504
04f39047
SW		 6505static int nl80211_start_radar_detection(struct sk_buff *skb,
6506 struct genl_info *info)
6507{
6508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6509 struct net_device *dev = info->user_ptr[1];
6510 struct wireless_dev *wdev = dev->ieee80211_ptr;
6511 struct cfg80211_chan_def chandef;
55f7435c 6512 enum nl80211_dfs_regions dfs_region;
31559f35 6513 unsigned int cac_time_ms;
04f39047
SW		 6514 int err;
6515
55f7435c
LR		 6516 dfs_region = reg_get_dfs_region(wdev->wiphy);
6517 if (dfs_region == NL80211_DFS_UNSET)
6518 return -EINVAL;
6519
04f39047
SW		 6520 err = nl80211_parse_chandef(rdev, info, &chandef);
6521 if (err)
6522 return err;
6523
ff311bc1
SW		 6524 if (netif_carrier_ok(dev))
6525 return -EBUSY;
6526
04f39047
SW		 6527 if (wdev->cac_started)
6528 return -EBUSY;
6529
2beb6dab 6530 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6531 wdev->iftype);
04f39047
SW		 6532 if (err < 0)
6533 return err;
6534
6535 if (err == 0)
6536 return -EINVAL;
6537
fe7c3a1f 6538 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6539 return -EINVAL;
6540
6541 if (!rdev->ops->start_radar_detection)
6542 return -EOPNOTSUPP;
6543
31559f35
JD		 6544 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6545 if (WARN_ON(!cac_time_ms))
6546 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6547
a1056b1b 6548 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6549 if (!err) {
9e0e2961 6550 wdev->chandef = chandef;
04f39047
SW		 6551 wdev->cac_started = true;
6552 wdev->cac_start_time = jiffies;
31559f35 6553 wdev->cac_time_ms = cac_time_ms;
04f39047 6554 }
04f39047
SW		 6555 return err;
6556}
6557
16ef1fe2
SW		 6558static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6559{
6560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6561 struct net_device *dev = info->user_ptr[1];
6562 struct wireless_dev *wdev = dev->ieee80211_ptr;
6563 struct cfg80211_csa_settings params;
6564 /* csa_attrs is defined static to avoid waste of stack size - this
6565 * function is called under RTNL lock, so this should not be a problem.
6566 */
6567 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6568 int err;
ee4bc9e7 6569 bool need_new_beacon = false;
9a774c78 6570 int len, i;
252e07ca 6571 u32 cs_count;
16ef1fe2
SW		 6572
6573 if (!rdev->ops->channel_switch ||
6574 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6575 return -EOPNOTSUPP;
6576
ee4bc9e7
SW		 6577 switch (dev->ieee80211_ptr->iftype) {
6578 case NL80211_IFTYPE_AP:
6579 case NL80211_IFTYPE_P2P_GO:
6580 need_new_beacon = true;
6581
6582 /* useless if AP is not running */
6583 if (!wdev->beacon_interval)
1ff79dfa 6584 return -ENOTCONN;
ee4bc9e7
SW		 6585 break;
6586 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6587 if (!wdev->ssid_len)
6588 return -ENOTCONN;
6589 break;
c6da674a 6590 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6591 if (!wdev->mesh_id_len)
6592 return -ENOTCONN;
ee4bc9e7
SW		 6593 break;
6594 default:
16ef1fe2 6595 return -EOPNOTSUPP;
ee4bc9e7 6596 }
16ef1fe2
SW		 6597
6598 memset(&params, 0, sizeof(params));
6599
6600 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6601 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6602 return -EINVAL;
6603
6604 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6605 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6606 return -EINVAL;
6607
252e07ca
LC		 6608 /* Even though the attribute is u32, the specification says
6609 * u8, so let's make sure we don't overflow.
6610 */
6611 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6612 if (cs_count > 255)
6613 return -EINVAL;
6614
6615 params.count = cs_count;
16ef1fe2 6616
ee4bc9e7
SW		 6617 if (!need_new_beacon)
6618 goto skip_beacons;
6619
16ef1fe2
SW		 6620 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6621 if (err)
6622 return err;
6623
6624 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6625 info->attrs[NL80211_ATTR_CSA_IES],
6626 nl80211_policy);
6627 if (err)
6628 return err;
6629
6630 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6631 if (err)
6632 return err;
6633
6634 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6635 return -EINVAL;
6636
9a774c78
AO		 6637 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6638 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6639 return -EINVAL;
6640
9a774c78
AO		 6641 params.n_counter_offsets_beacon = len / sizeof(u16);
6642 if (rdev->wiphy.max_num_csa_counters &&
6643 (params.n_counter_offsets_beacon >
6644 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6645 return -EINVAL;
6646
9a774c78
AO		 6647 params.counter_offsets_beacon =
6648 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6649
6650 /* sanity checks - counters should fit and be the same */
6651 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6652 u16 offset = params.counter_offsets_beacon[i];
6653
6654 if (offset >= params.beacon_csa.tail_len)
6655 return -EINVAL;
6656
6657 if (params.beacon_csa.tail[offset] != params.count)
6658 return -EINVAL;
6659 }
6660
16ef1fe2 6661 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6662 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6663 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6664 return -EINVAL;
6665
9a774c78
AO		 6666 params.n_counter_offsets_presp = len / sizeof(u16);
6667 if (rdev->wiphy.max_num_csa_counters &&
6668 (params.n_counter_offsets_beacon >
6669 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6670 return -EINVAL;
9a774c78
AO		 6671
6672 params.counter_offsets_presp =
6673 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6674
6675 /* sanity checks - counters should fit and be the same */
6676 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6677 u16 offset = params.counter_offsets_presp[i];
6678
6679 if (offset >= params.beacon_csa.probe_resp_len)
6680 return -EINVAL;
6681
6682 if (params.beacon_csa.probe_resp[offset] !=
6683 params.count)
6684 return -EINVAL;
6685 }
16ef1fe2
SW		 6686 }
6687
ee4bc9e7 6688skip_beacons:
16ef1fe2
SW		 6689 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6690 if (err)
6691 return err;
6692
923b352f
AN		 6693 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6694 wdev->iftype))
16ef1fe2
SW		 6695 return -EINVAL;
6696
2beb6dab
LC		 6697 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6698 &params.chandef,
6699 wdev->iftype);
6700 if (err < 0)
6701 return err;
6702
dcc6c2f5 6703 if (err > 0)
2beb6dab 6704 params.radar_required = true;
16ef1fe2 6705
16ef1fe2
SW		 6706 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6707 params.block_tx = true;
6708
c56589ed
SW		 6709 wdev_lock(wdev);
6710 err = rdev_channel_switch(rdev, dev, &params);
6711 wdev_unlock(wdev);
6712
6713 return err;
16ef1fe2
SW		 6714}
6715
9720bb3a
JB		 6716static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6717 u32 seq, int flags,
2a519311 6718 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6719 struct wireless_dev *wdev,
6720 struct cfg80211_internal_bss *intbss)
2a519311 6721{
48ab905d 6722 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6723 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6724 void *hdr;
6725 struct nlattr *bss;
48ab905d
JB		 6726
6727 ASSERT_WDEV_LOCK(wdev);
2a519311 6728
15e47304 6729 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6730 NL80211_CMD_NEW_SCAN_RESULTS);
6731 if (!hdr)
6732 return -1;
6733
9720bb3a
JB		 6734 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6735
97990a06
JB		 6736 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6737 goto nla_put_failure;
6738 if (wdev->netdev &&
9360ffd1
DM		 6739 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6740 goto nla_put_failure;
97990a06
JB		 6741 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6742 goto nla_put_failure;
2a519311
JB		 6743
6744 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6745 if (!bss)
6746 goto nla_put_failure;
9360ffd1 6747 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6748 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6749 goto nla_put_failure;
9caf0364
JB		 6750
6751 rcu_read_lock();
0e227084
JB		 6752 /* indicate whether we have probe response data or not */
6753 if (rcu_access_pointer(res->proberesp_ies) &&
6754 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6755 goto fail_unlock_rcu;
6756
6757 /* this pointer prefers to be pointed to probe response data
6758 * but is always valid
6759 */
9caf0364 6760 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6761 if (ies) {
6762 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6763 goto fail_unlock_rcu;
8cef2c9d
JB		 6764 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6765 ies->len, ies->data))
6766 goto fail_unlock_rcu;
9caf0364 6767 }
0e227084
JB		 6768
6769 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6770 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6771 if (ies && ies->from_beacon) {
6772 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6773 goto fail_unlock_rcu;
6774 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6775 ies->len, ies->data))
6776 goto fail_unlock_rcu;
9caf0364
JB		 6777 }
6778 rcu_read_unlock();
6779
9360ffd1
DM		 6780 if (res->beacon_interval &&
6781 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6782 goto nla_put_failure;
6783 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6784 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6785 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6786 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6787 jiffies_to_msecs(jiffies - intbss->ts)))
6788 goto nla_put_failure;
2a519311 6789
6e19bc4b
DS		 6790 if (intbss->ts_boottime &&
6791 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6792 intbss->ts_boottime))
6793 goto nla_put_failure;
6794
77965c97 6795 switch (rdev->wiphy.signal_type) {
2a519311 6796 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6797 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6798 goto nla_put_failure;
2a519311
JB		 6799 break;
6800 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6801 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6802 goto nla_put_failure;
2a519311
JB		 6803 break;
6804 default:
6805 break;
6806 }
6807
48ab905d 6808 switch (wdev->iftype) {
074ac8df 6809 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6810 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6811 if (intbss == wdev->current_bss &&
6812 nla_put_u32(msg, NL80211_BSS_STATUS,
6813 NL80211_BSS_STATUS_ASSOCIATED))
6814 goto nla_put_failure;
48ab905d
JB		 6815 break;
6816 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6817 if (intbss == wdev->current_bss &&
6818 nla_put_u32(msg, NL80211_BSS_STATUS,
6819 NL80211_BSS_STATUS_IBSS_JOINED))
6820 goto nla_put_failure;
48ab905d
JB		 6821 break;
6822 default:
6823 break;
6824 }
6825
2a519311
JB		 6826 nla_nest_end(msg, bss);
6827
053c095a
JB		 6828 genlmsg_end(msg, hdr);
6829 return 0;
2a519311 6830
8cef2c9d
JB		 6831 fail_unlock_rcu:
6832 rcu_read_unlock();
2a519311
JB		 6833 nla_put_failure:
6834 genlmsg_cancel(msg, hdr);
6835 return -EMSGSIZE;
6836}
6837
97990a06 6838static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6839{
48ab905d 6840 struct cfg80211_registered_device *rdev;
2a519311 6841 struct cfg80211_internal_bss *scan;
48ab905d 6842 struct wireless_dev *wdev;
97990a06 6843 int start = cb->args[2], idx = 0;
2a519311
JB		 6844 int err;
6845
97990a06 6846 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6847 if (err)
6848 return err;
2a519311 6849
48ab905d
JB		 6850 wdev_lock(wdev);
6851 spin_lock_bh(&rdev->bss_lock);
6852 cfg80211_bss_expire(rdev);
6853
9720bb3a
JB		 6854 cb->seq = rdev->bss_generation;
6855
48ab905d 6856 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6857 if (++idx <= start)
6858 continue;
9720bb3a 6859 if (nl80211_send_bss(skb, cb,
2a519311 6860 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6861 rdev, wdev, scan) < 0) {
2a519311 6862 idx--;
67748893 6863 break;
2a519311
JB		 6864 }
6865 }
6866
48ab905d
JB		 6867 spin_unlock_bh(&rdev->bss_lock);
6868 wdev_unlock(wdev);
2a519311 6869
97990a06
JB		 6870 cb->args[2] = idx;
6871 nl80211_finish_wdev_dump(rdev);
2a519311 6872
67748893 6873 return skb->len;
2a519311
JB		 6874}
6875
15e47304 6876static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6877 int flags, struct net_device *dev,
6878 bool allow_radio_stats,
6879 struct survey_info *survey)
61fa713c
HS		 6880{
6881 void *hdr;
6882 struct nlattr *infoattr;
6883
11f78ac3
JB		 6884 /* skip radio stats if userspace didn't request them */
6885 if (!survey->channel && !allow_radio_stats)
6886 return 0;
6887
15e47304 6888 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6889 NL80211_CMD_NEW_SURVEY_RESULTS);
6890 if (!hdr)
6891 return -ENOMEM;
6892
9360ffd1
DM		 6893 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6894 goto nla_put_failure;
61fa713c
HS		 6895
6896 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6897 if (!infoattr)
6898 goto nla_put_failure;
6899
11f78ac3
JB		 6900 if (survey->channel &&
6901 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6902 survey->channel->center_freq))
6903 goto nla_put_failure;
6904
6905 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6906 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6907 goto nla_put_failure;
6908 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6909 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6910 goto nla_put_failure;
4ed20beb
JB		 6911 if ((survey->filled & SURVEY_INFO_TIME) &&
6912 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6913 survey->time))
9360ffd1 6914 goto nla_put_failure;
4ed20beb
JB		 6915 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6916 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6917 survey->time_busy))
9360ffd1 6918 goto nla_put_failure;
4ed20beb
JB		 6919 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6920 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6921 survey->time_ext_busy))
9360ffd1 6922 goto nla_put_failure;
4ed20beb
JB		 6923 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6924 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6925 survey->time_rx))
9360ffd1 6926 goto nla_put_failure;
4ed20beb
JB		 6927 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6928 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6929 survey->time_tx))
9360ffd1 6930 goto nla_put_failure;
052536ab
JB		 6931 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6932 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6933 survey->time_scan))
6934 goto nla_put_failure;
61fa713c
HS		 6935
6936 nla_nest_end(msg, infoattr);
6937
053c095a
JB		 6938 genlmsg_end(msg, hdr);
6939 return 0;
61fa713c
HS		 6940
6941 nla_put_failure:
6942 genlmsg_cancel(msg, hdr);
6943 return -EMSGSIZE;
6944}
6945
11f78ac3 6946static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6947{
6948 struct survey_info survey;
1b8ec87a 6949 struct cfg80211_registered_device *rdev;
97990a06
JB		 6950 struct wireless_dev *wdev;
6951 int survey_idx = cb->args[2];
61fa713c 6952 int res;
11f78ac3 6953 bool radio_stats;
61fa713c 6954
1b8ec87a 6955 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6956 if (res)
6957 return res;
61fa713c 6958
11f78ac3
JB		 6959 /* prepare_wdev_dump parsed the attributes */
6960 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6961
97990a06
JB		 6962 if (!wdev->netdev) {
6963 res = -EINVAL;
6964 goto out_err;
6965 }
6966
1b8ec87a 6967 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6968 res = -EOPNOTSUPP;
6969 goto out_err;
6970 }
6971
6972 while (1) {
1b8ec87a 6973 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6974 if (res == -ENOENT)
6975 break;
6976 if (res)
6977 goto out_err;
6978
11f78ac3
JB		 6979 /* don't send disabled channels, but do send non-channel data */
6980 if (survey.channel &&
6981 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6982 survey_idx++;
6983 continue;
6984 }
6985
61fa713c 6986 if (nl80211_send_survey(skb,
15e47304 6987 NETLINK_CB(cb->skb).portid,
61fa713c 6988 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6989 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6990 goto out;
6991 survey_idx++;
6992 }
6993
6994 out:
97990a06 6995 cb->args[2] = survey_idx;
61fa713c
HS		 6996 res = skb->len;
6997 out_err:
1b8ec87a 6998 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6999 return res;
7000}
7001
b23aa676
SO		 7002static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7003{
7004 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7005 NL80211_WPA_VERSION_2));
7006}
7007
636a5d36
JM		 7008static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7009{
4c476991
JB		 7010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7011 struct net_device *dev = info->user_ptr[1];
19957bb3 7012 struct ieee80211_channel *chan;
e39e5b5e
JM		 7013 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7014 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7015 enum nl80211_auth_type auth_type;
fffd0934 7016 struct key_parse key;
d5cdfacb 7017 bool local_state_change;
636a5d36 7018
f4a11bb0
JB		 7019 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7020 return -EINVAL;
7021
7022 if (!info->attrs[NL80211_ATTR_MAC])
7023 return -EINVAL;
7024
1778092e
JM		 7025 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7026 return -EINVAL;
7027
19957bb3
JB		 7028 if (!info->attrs[NL80211_ATTR_SSID])
7029 return -EINVAL;
7030
7031 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7032 return -EINVAL;
7033
fffd0934
JB		 7034 err = nl80211_parse_key(info, &key);
7035 if (err)
7036 return err;
7037
7038 if (key.idx >= 0) {
e31b8213
JB		 7039 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7040 return -EINVAL;
fffd0934
JB		 7041 if (!key.p.key || !key.p.key_len)
7042 return -EINVAL;
7043 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7044 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7045 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7046 key.p.key_len != WLAN_KEY_LEN_WEP104))
7047 return -EINVAL;
7048 if (key.idx > 4)
7049 return -EINVAL;
7050 } else {
7051 key.p.key_len = 0;
7052 key.p.key = NULL;
7053 }
7054
afea0b7a
JB		 7055 if (key.idx >= 0) {
7056 int i;
7057 bool ok = false;
7058 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7059 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7060 ok = true;
7061 break;
7062 }
7063 }
4c476991
JB		 7064 if (!ok)
7065 return -EINVAL;
afea0b7a
JB		 7066 }
7067
4c476991
JB		 7068 if (!rdev->ops->auth)
7069 return -EOPNOTSUPP;
636a5d36 7070
074ac8df 7071 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7072 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7073 return -EOPNOTSUPP;
eec60b03 7074
19957bb3 7075 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7076 chan = nl80211_get_valid_chan(&rdev->wiphy,
7077 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7078 if (!chan)
4c476991 7079 return -EINVAL;
636a5d36 7080
19957bb3
JB		 7081 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7082 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7083
7084 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7085 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7086 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7087 }
7088
19957bb3 7089 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7090 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7091 return -EINVAL;
636a5d36 7092
e39e5b5e
JM		 7093 if (auth_type == NL80211_AUTHTYPE_SAE &&
7094 !info->attrs[NL80211_ATTR_SAE_DATA])
7095 return -EINVAL;
7096
7097 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7098 if (auth_type != NL80211_AUTHTYPE_SAE)
7099 return -EINVAL;
7100 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7101 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7102 /* need to include at least Auth Transaction and Status Code */
7103 if (sae_data_len < 4)
7104 return -EINVAL;
7105 }
7106
d5cdfacb
JM		 7107 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7108
95de817b
JB		 7109 /*
7110 * Since we no longer track auth state, ignore
7111 * requests to only change local state.
7112 */
7113 if (local_state_change)
7114 return 0;
7115
91bf9b26
JB		 7116 wdev_lock(dev->ieee80211_ptr);
7117 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7118 ssid, ssid_len, ie, ie_len,
7119 key.p.key, key.p.key_len, key.idx,
7120 sae_data, sae_data_len);
7121 wdev_unlock(dev->ieee80211_ptr);
7122 return err;
636a5d36
JM		 7123}
7124
c0692b8f
JB		 7125static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7126 struct genl_info *info,
3dc27d25
JB		 7127 struct cfg80211_crypto_settings *settings,
7128 int cipher_limit)
b23aa676 7129{
c0b2bbd8
JB		 7130 memset(settings, 0, sizeof(*settings));
7131
b23aa676
SO		 7132 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7133
c0692b8f
JB		 7134 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7135 u16 proto;
7136 proto = nla_get_u16(
7137 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7138 settings->control_port_ethertype = cpu_to_be16(proto);
7139 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7140 proto != ETH_P_PAE)
7141 return -EINVAL;
7142 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7143 settings->control_port_no_encrypt = true;
7144 } else
7145 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7146
b23aa676
SO		 7147 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7148 void *data;
7149 int len, i;
7150
7151 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7152 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7153 settings->n_ciphers_pairwise = len / sizeof(u32);
7154
7155 if (len % sizeof(u32))
7156 return -EINVAL;
7157
3dc27d25 7158 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7159 return -EINVAL;
7160
7161 memcpy(settings->ciphers_pairwise, data, len);
7162
7163 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7164 if (!cfg80211_supported_cipher_suite(
7165 &rdev->wiphy,
b23aa676
SO		 7166 settings->ciphers_pairwise[i]))
7167 return -EINVAL;
7168 }
7169
7170 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7171 settings->cipher_group =
7172 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7173 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7174 settings->cipher_group))
b23aa676
SO		 7175 return -EINVAL;
7176 }
7177
7178 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7179 settings->wpa_versions =
7180 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7181 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7182 return -EINVAL;
7183 }
7184
7185 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7186 void *data;
6d30240e 7187 int len;
b23aa676
SO		 7188
7189 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7190 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7191 settings->n_akm_suites = len / sizeof(u32);
7192
7193 if (len % sizeof(u32))
7194 return -EINVAL;
7195
1b9ca027
JM		 7196 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7197 return -EINVAL;
7198
b23aa676 7199 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7200 }
7201
7202 return 0;
7203}
7204
636a5d36
JM		 7205static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7206{
4c476991
JB		 7207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7208 struct net_device *dev = info->user_ptr[1];
f444de05 7209 struct ieee80211_channel *chan;
f62fab73
JB		 7210 struct cfg80211_assoc_request req = {};
7211 const u8 *bssid, *ssid;
7212 int err, ssid_len = 0;
636a5d36 7213
f4a11bb0
JB		 7214 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7215 return -EINVAL;
7216
7217 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7218 !info->attrs[NL80211_ATTR_SSID] ||
7219 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7220 return -EINVAL;
7221
4c476991
JB		 7222 if (!rdev->ops->assoc)
7223 return -EOPNOTSUPP;
636a5d36 7224
074ac8df 7225 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7227 return -EOPNOTSUPP;
eec60b03 7228
19957bb3 7229 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7230
664834de
JM		 7231 chan = nl80211_get_valid_chan(&rdev->wiphy,
7232 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7233 if (!chan)
4c476991 7234 return -EINVAL;
636a5d36 7235
19957bb3
JB		 7236 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7237 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7238
7239 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7240 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7241 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7242 }
7243
dc6382ce 7244 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7245 enum nl80211_mfp mfp =
dc6382ce 7246 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7247 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7248 req.use_mfp = true;
4c476991
JB		 7249 else if (mfp != NL80211_MFP_NO)
7250 return -EINVAL;
dc6382ce
JM		 7251 }
7252
3e5d7649 7253 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7254 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7255
7e7c8926 7256 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7257 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7258
7259 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7260 memcpy(&req.ht_capa_mask,
7261 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7262 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7263
7264 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7265 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7266 return -EINVAL;
f62fab73
JB		 7267 memcpy(&req.ht_capa,
7268 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7269 sizeof(req.ht_capa));
7e7c8926
BG		 7270 }
7271
ee2aca34 7272 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7273 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7274
7275 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7276 memcpy(&req.vht_capa_mask,
7277 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7278 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7279
7280 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7281 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7282 return -EINVAL;
f62fab73
JB		 7283 memcpy(&req.vht_capa,
7284 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7285 sizeof(req.vht_capa));
ee2aca34
JB		 7286 }
7287
bab5ab7d
AK		 7288 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7289 if (!(rdev->wiphy.features &
7290 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7291 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7292 return -EINVAL;
7293 req.flags |= ASSOC_REQ_USE_RRM;
7294 }
7295
f62fab73 7296 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7297 if (!err) {
7298 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7299 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7300 ssid, ssid_len, &req);
91bf9b26
JB		 7301 wdev_unlock(dev->ieee80211_ptr);
7302 }
636a5d36 7303
636a5d36
JM		 7304 return err;
7305}
7306
7307static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7308{
4c476991
JB		 7309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7310 struct net_device *dev = info->user_ptr[1];
19957bb3 7311 const u8 *ie = NULL, *bssid;
91bf9b26 7312 int ie_len = 0, err;
19957bb3 7313 u16 reason_code;
d5cdfacb 7314 bool local_state_change;
636a5d36 7315
f4a11bb0
JB		 7316 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7317 return -EINVAL;
7318
7319 if (!info->attrs[NL80211_ATTR_MAC])
7320 return -EINVAL;
7321
7322 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7323 return -EINVAL;
7324
4c476991
JB		 7325 if (!rdev->ops->deauth)
7326 return -EOPNOTSUPP;
636a5d36 7327
074ac8df 7328 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7329 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7330 return -EOPNOTSUPP;
eec60b03 7331
19957bb3 7332 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7333
19957bb3
JB		 7334 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7335 if (reason_code == 0) {
f4a11bb0 7336 /* Reason Code 0 is reserved */
4c476991 7337 return -EINVAL;
255e737e 7338 }
636a5d36
JM		 7339
7340 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7341 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7342 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7343 }
7344
d5cdfacb
JM		 7345 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7346
91bf9b26
JB		 7347 wdev_lock(dev->ieee80211_ptr);
7348 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7349 local_state_change);
7350 wdev_unlock(dev->ieee80211_ptr);
7351 return err;
636a5d36
JM		 7352}
7353
7354static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7355{
4c476991
JB		 7356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7357 struct net_device *dev = info->user_ptr[1];
19957bb3 7358 const u8 *ie = NULL, *bssid;
91bf9b26 7359 int ie_len = 0, err;
19957bb3 7360 u16 reason_code;
d5cdfacb 7361 bool local_state_change;
636a5d36 7362
f4a11bb0
JB		 7363 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7364 return -EINVAL;
7365
7366 if (!info->attrs[NL80211_ATTR_MAC])
7367 return -EINVAL;
7368
7369 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7370 return -EINVAL;
7371
4c476991
JB		 7372 if (!rdev->ops->disassoc)
7373 return -EOPNOTSUPP;
636a5d36 7374
074ac8df 7375 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7376 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7377 return -EOPNOTSUPP;
eec60b03 7378
19957bb3 7379 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7380
19957bb3
JB		 7381 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7382 if (reason_code == 0) {
f4a11bb0 7383 /* Reason Code 0 is reserved */
4c476991 7384 return -EINVAL;
255e737e 7385 }
636a5d36
JM		 7386
7387 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7388 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7389 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7390 }
7391
d5cdfacb
JM		 7392 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7393
91bf9b26
JB		 7394 wdev_lock(dev->ieee80211_ptr);
7395 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7396 local_state_change);
7397 wdev_unlock(dev->ieee80211_ptr);
7398 return err;
636a5d36
JM		 7399}
7400
dd5b4cc7
FF		 7401static bool
7402nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7403 int mcast_rate[IEEE80211_NUM_BANDS],
7404 int rateval)
7405{
7406 struct wiphy *wiphy = &rdev->wiphy;
7407 bool found = false;
7408 int band, i;
7409
7410 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7411 struct ieee80211_supported_band *sband;
7412
7413 sband = wiphy->bands[band];
7414 if (!sband)
7415 continue;
7416
7417 for (i = 0; i < sband->n_bitrates; i++) {
7418 if (sband->bitrates[i].bitrate == rateval) {
7419 mcast_rate[band] = i + 1;
7420 found = true;
7421 break;
7422 }
7423 }
7424 }
7425
7426 return found;
7427}
7428
04a773ad
JB		 7429static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7430{
4c476991
JB		 7431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7432 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7433 struct cfg80211_ibss_params ibss;
7434 struct wiphy *wiphy;
fffd0934 7435 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7436 int err;
7437
8e30bc55
JB		 7438 memset(&ibss, 0, sizeof(ibss));
7439
04a773ad
JB		 7440 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7441 return -EINVAL;
7442
683b6d3b 7443 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7444 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7445 return -EINVAL;
7446
8e30bc55
JB		 7447 ibss.beacon_interval = 100;
7448
7449 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7450 ibss.beacon_interval =
7451 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7452 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7453 return -EINVAL;
7454 }
7455
4c476991
JB		 7456 if (!rdev->ops->join_ibss)
7457 return -EOPNOTSUPP;
04a773ad 7458
4c476991
JB		 7459 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7460 return -EOPNOTSUPP;
04a773ad 7461
79c97e97 7462 wiphy = &rdev->wiphy;
04a773ad 7463
39193498 7464 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7465 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7466
7467 if (!is_valid_ether_addr(ibss.bssid))
7468 return -EINVAL;
7469 }
04a773ad
JB		 7470 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7471 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7472
7473 if (info->attrs[NL80211_ATTR_IE]) {
7474 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7475 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7476 }
7477
683b6d3b
JB		 7478 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7479 if (err)
7480 return err;
04a773ad 7481
174e0cd2
IP		 7482 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7483 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7484 return -EINVAL;
7485
2f301ab2 7486 switch (ibss.chandef.width) {
bf372645
SW		 7487 case NL80211_CHAN_WIDTH_5:
7488 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7489 case NL80211_CHAN_WIDTH_20_NOHT:
7490 break;
7491 case NL80211_CHAN_WIDTH_20:
7492 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7493 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7494 return -EINVAL;
7495 break;
7496 case NL80211_CHAN_WIDTH_80:
7497 case NL80211_CHAN_WIDTH_80P80:
7498 case NL80211_CHAN_WIDTH_160:
7499 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7500 return -EINVAL;
7501 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7502 NL80211_EXT_FEATURE_VHT_IBSS))
7503 return -EINVAL;
7504 break;
2f301ab2 7505 default:
c04d6150 7506 return -EINVAL;
2f301ab2 7507 }
db9c64cf 7508
04a773ad 7509 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7510 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7511
fbd2c8dc
TP		 7512 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7513 u8 *rates =
7514 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7515 int n_rates =
7516 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7517 struct ieee80211_supported_band *sband =
683b6d3b 7518 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7519
34850ab2
JB		 7520 err = ieee80211_get_ratemask(sband, rates, n_rates,
7521 &ibss.basic_rates);
7522 if (err)
7523 return err;
fbd2c8dc 7524 }
dd5b4cc7 7525
803768f5
SW		 7526 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7527 memcpy(&ibss.ht_capa_mask,
7528 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7529 sizeof(ibss.ht_capa_mask));
7530
7531 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7532 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7533 return -EINVAL;
7534 memcpy(&ibss.ht_capa,
7535 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7536 sizeof(ibss.ht_capa));
7537 }
7538
dd5b4cc7
FF		 7539 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7540 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7541 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7542 return -EINVAL;
fbd2c8dc 7543
4c476991 7544 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7545 bool no_ht = false;
7546
4c476991 7547 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7548 info->attrs[NL80211_ATTR_KEYS],
7549 &no_ht);
4c476991
JB		 7550 if (IS_ERR(connkeys))
7551 return PTR_ERR(connkeys);
de7044ee 7552
3d9d1d66
JB		 7553 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7554 no_ht) {
de7044ee
SM		 7555 kfree(connkeys);
7556 return -EINVAL;
7557 }
4c476991 7558 }
04a773ad 7559
267335d6
AQ		 7560 ibss.control_port =
7561 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7562
5336fa88
SW		 7563 ibss.userspace_handles_dfs =
7564 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7565
4c476991 7566 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7567 if (err)
b47f610b 7568 kzfree(connkeys);
04a773ad
JB		 7569 return err;
7570}
7571
7572static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7573{
4c476991
JB		 7574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7575 struct net_device *dev = info->user_ptr[1];
04a773ad 7576
4c476991
JB		 7577 if (!rdev->ops->leave_ibss)
7578 return -EOPNOTSUPP;
04a773ad 7579
4c476991
JB		 7580 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7581 return -EOPNOTSUPP;
04a773ad 7582
4c476991 7583 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7584}
7585
f4e583c8
AQ		 7586static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7587{
7588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7589 struct net_device *dev = info->user_ptr[1];
7590 int mcast_rate[IEEE80211_NUM_BANDS];
7591 u32 nla_rate;
7592 int err;
7593
7594 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7595 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7596 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7597 return -EOPNOTSUPP;
7598
7599 if (!rdev->ops->set_mcast_rate)
7600 return -EOPNOTSUPP;
7601
7602 memset(mcast_rate, 0, sizeof(mcast_rate));
7603
7604 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7605 return -EINVAL;
7606
7607 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7608 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7609 return -EINVAL;
7610
a1056b1b 7611 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7612
7613 return err;
7614}
7615
ad7e718c
JB		 7616static struct sk_buff *
7617__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7618 struct wireless_dev *wdev, int approxlen,
7619 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7620 enum nl80211_attrs attr,
7621 const struct nl80211_vendor_cmd_info *info,
7622 gfp_t gfp)
ad7e718c
JB		 7623{
7624 struct sk_buff *skb;
7625 void *hdr;
7626 struct nlattr *data;
7627
7628 skb = nlmsg_new(approxlen + 100, gfp);
7629 if (!skb)
7630 return NULL;
7631
7632 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7633 if (!hdr) {
7634 kfree_skb(skb);
7635 return NULL;
7636 }
7637
7638 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7639 goto nla_put_failure;
567ffc35
JB		 7640
7641 if (info) {
7642 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7643 info->vendor_id))
7644 goto nla_put_failure;
7645 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7646 info->subcmd))
7647 goto nla_put_failure;
7648 }
7649
6c09e791
AK		 7650 if (wdev) {
7651 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7652 wdev_id(wdev)))
7653 goto nla_put_failure;
7654 if (wdev->netdev &&
7655 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7656 wdev->netdev->ifindex))
7657 goto nla_put_failure;
7658 }
7659
ad7e718c
JB		 7660 data = nla_nest_start(skb, attr);
7661
7662 ((void **)skb->cb)[0] = rdev;
7663 ((void **)skb->cb)[1] = hdr;
7664 ((void **)skb->cb)[2] = data;
7665
7666 return skb;
7667
7668 nla_put_failure:
7669 kfree_skb(skb);
7670 return NULL;
7671}
f4e583c8 7672
e03ad6ea 7673struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7674 struct wireless_dev *wdev,
e03ad6ea
JB		 7675 enum nl80211_commands cmd,
7676 enum nl80211_attrs attr,
7677 int vendor_event_idx,
7678 int approxlen, gfp_t gfp)
7679{
f26cbf40 7680 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7681 const struct nl80211_vendor_cmd_info *info;
7682
7683 switch (cmd) {
7684 case NL80211_CMD_TESTMODE:
7685 if (WARN_ON(vendor_event_idx != -1))
7686 return NULL;
7687 info = NULL;
7688 break;
7689 case NL80211_CMD_VENDOR:
7690 if (WARN_ON(vendor_event_idx < 0 ||
7691 vendor_event_idx >= wiphy->n_vendor_events))
7692 return NULL;
7693 info = &wiphy->vendor_events[vendor_event_idx];
7694 break;
7695 default:
7696 WARN_ON(1);
7697 return NULL;
7698 }
7699
6c09e791 7700 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7701 cmd, attr, info, gfp);
7702}
7703EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7704
7705void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7706{
7707 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7708 void *hdr = ((void **)skb->cb)[1];
7709 struct nlattr *data = ((void **)skb->cb)[2];
7710 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7711
bd8c78e7
JB		 7712 /* clear CB data for netlink core to own from now on */
7713 memset(skb->cb, 0, sizeof(skb->cb));
7714
e03ad6ea
JB		 7715 nla_nest_end(skb, data);
7716 genlmsg_end(skb, hdr);
7717
7718 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7719 mcgrp = NL80211_MCGRP_VENDOR;
7720
7721 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7722 mcgrp, gfp);
7723}
7724EXPORT_SYMBOL(__cfg80211_send_event_skb);
7725
aff89a9b 7726#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7727static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7728{
4c476991 7729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7730 struct wireless_dev *wdev =
7731 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7732 int err;
7733
fc73f11f
DS		 7734 if (!rdev->ops->testmode_cmd)
7735 return -EOPNOTSUPP;
7736
7737 if (IS_ERR(wdev)) {
7738 err = PTR_ERR(wdev);
7739 if (err != -EINVAL)
7740 return err;
7741 wdev = NULL;
7742 } else if (wdev->wiphy != &rdev->wiphy) {
7743 return -EINVAL;
7744 }
7745
aff89a9b
JB		 7746 if (!info->attrs[NL80211_ATTR_TESTDATA])
7747 return -EINVAL;
7748
ad7e718c 7749 rdev->cur_cmd_info = info;
fc73f11f 7750 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7751 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7752 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7753 rdev->cur_cmd_info = NULL;
aff89a9b 7754
aff89a9b
JB		 7755 return err;
7756}
7757
71063f0e
WYG		 7758static int nl80211_testmode_dump(struct sk_buff *skb,
7759 struct netlink_callback *cb)
7760{
00918d33 7761 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7762 int err;
7763 long phy_idx;
7764 void *data = NULL;
7765 int data_len = 0;
7766
5fe231e8
JB		 7767 rtnl_lock();
7768
71063f0e
WYG		 7769 if (cb->args[0]) {
7770 /*
7771 * 0 is a valid index, but not valid for args[0],
7772 * so we need to offset by 1.
7773 */
7774 phy_idx = cb->args[0] - 1;
7775 } else {
7776 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7777 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7778 nl80211_policy);
7779 if (err)
5fe231e8 7780 goto out_err;
00918d33 7781
2bd7e35d
JB		 7782 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7783 nl80211_fam.attrbuf);
7784 if (IS_ERR(rdev)) {
5fe231e8
JB		 7785 err = PTR_ERR(rdev);
7786 goto out_err;
00918d33 7787 }
2bd7e35d
JB		 7788 phy_idx = rdev->wiphy_idx;
7789 rdev = NULL;
2bd7e35d 7790
71063f0e
WYG		 7791 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7792 cb->args[1] =
7793 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7794 }
7795
7796 if (cb->args[1]) {
7797 data = nla_data((void *)cb->args[1]);
7798 data_len = nla_len((void *)cb->args[1]);
7799 }
7800
00918d33
JB		 7801 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7802 if (!rdev) {
5fe231e8
JB		 7803 err = -ENOENT;
7804 goto out_err;
71063f0e 7805 }
71063f0e 7806
00918d33 7807 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7808 err = -EOPNOTSUPP;
7809 goto out_err;
7810 }
7811
7812 while (1) {
15e47304 7813 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7815 NL80211_CMD_TESTMODE);
7816 struct nlattr *tmdata;
7817
cb35fba3
DC		 7818 if (!hdr)
7819 break;
7820
9360ffd1 7821 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7822 genlmsg_cancel(skb, hdr);
7823 break;
7824 }
7825
7826 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7827 if (!tmdata) {
7828 genlmsg_cancel(skb, hdr);
7829 break;
7830 }
e35e4d28 7831 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7832 nla_nest_end(skb, tmdata);
7833
7834 if (err == -ENOBUFS || err == -ENOENT) {
7835 genlmsg_cancel(skb, hdr);
7836 break;
7837 } else if (err) {
7838 genlmsg_cancel(skb, hdr);
7839 goto out_err;
7840 }
7841
7842 genlmsg_end(skb, hdr);
7843 }
7844
7845 err = skb->len;
7846 /* see above */
7847 cb->args[0] = phy_idx + 1;
7848 out_err:
5fe231e8 7849 rtnl_unlock();
71063f0e
WYG		 7850 return err;
7851}
aff89a9b
JB		 7852#endif
7853
b23aa676
SO		 7854static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7855{
4c476991
JB		 7856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7857 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7858 struct cfg80211_connect_params connect;
7859 struct wiphy *wiphy;
fffd0934 7860 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7861 int err;
7862
7863 memset(&connect, 0, sizeof(connect));
7864
7865 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7866 return -EINVAL;
7867
7868 if (!info->attrs[NL80211_ATTR_SSID] ||
7869 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7870 return -EINVAL;
7871
7872 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7873 connect.auth_type =
7874 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7875 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7876 NL80211_CMD_CONNECT))
b23aa676
SO		 7877 return -EINVAL;
7878 } else
7879 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7880
7881 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7882
c0692b8f 7883 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7884 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7885 if (err)
7886 return err;
b23aa676 7887
074ac8df 7888 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7889 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7890 return -EOPNOTSUPP;
b23aa676 7891
79c97e97 7892 wiphy = &rdev->wiphy;
b23aa676 7893
4486ea98
BS		 7894 connect.bg_scan_period = -1;
7895 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7896 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7897 connect.bg_scan_period =
7898 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7899 }
7900
b23aa676
SO		 7901 if (info->attrs[NL80211_ATTR_MAC])
7902 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7903 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7904 connect.bssid_hint =
7905 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7906 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7907 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7908
7909 if (info->attrs[NL80211_ATTR_IE]) {
7910 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7911 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7912 }
7913
cee00a95
JM		 7914 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7915 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7916 if (connect.mfp != NL80211_MFP_REQUIRED &&
7917 connect.mfp != NL80211_MFP_NO)
7918 return -EINVAL;
7919 } else {
7920 connect.mfp = NL80211_MFP_NO;
7921 }
7922
b23aa676 7923 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7924 connect.channel = nl80211_get_valid_chan(
7925 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7926 if (!connect.channel)
1df4a510
JM		 7927 return -EINVAL;
7928 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7929 connect.channel_hint = nl80211_get_valid_chan(
7930 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7931 if (!connect.channel_hint)
4c476991 7932 return -EINVAL;
b23aa676
SO		 7933 }
7934
fffd0934
JB		 7935 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7936 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7937 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7938 if (IS_ERR(connkeys))
7939 return PTR_ERR(connkeys);
fffd0934
JB		 7940 }
7941
7e7c8926
BG		 7942 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7943 connect.flags |= ASSOC_REQ_DISABLE_HT;
7944
7945 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7946 memcpy(&connect.ht_capa_mask,
7947 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7948 sizeof(connect.ht_capa_mask));
7949
7950 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7951 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7952 kzfree(connkeys);
7e7c8926 7953 return -EINVAL;
b4e4f47e 7954 }
7e7c8926
BG		 7955 memcpy(&connect.ht_capa,
7956 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7957 sizeof(connect.ht_capa));
7958 }
7959
ee2aca34
JB		 7960 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7961 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7962
7963 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7964 memcpy(&connect.vht_capa_mask,
7965 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7966 sizeof(connect.vht_capa_mask));
7967
7968 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7969 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7970 kzfree(connkeys);
ee2aca34
JB		 7971 return -EINVAL;
7972 }
7973 memcpy(&connect.vht_capa,
7974 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7975 sizeof(connect.vht_capa));
7976 }
7977
bab5ab7d
AK		 7978 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7979 if (!(rdev->wiphy.features &
7980 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
707554b4
OO		 7981 !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) {
7982 kzfree(connkeys);
bab5ab7d 7983 return -EINVAL;
707554b4 7984 }
bab5ab7d
AK		 7985 connect.flags |= ASSOC_REQ_USE_RRM;
7986 }
7987
34d50519
LD		 7988 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
7989 if (connect.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ]) {
7990 kzfree(connkeys);
7991 return -EOPNOTSUPP;
7992 }
7993
83739b03
JB		 7994 wdev_lock(dev->ieee80211_ptr);
7995 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7996 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7997 if (err)
b47f610b 7998 kzfree(connkeys);
b23aa676
SO		 7999 return err;
8000}
8001
8002static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8003{
4c476991
JB		 8004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8005 struct net_device *dev = info->user_ptr[1];
b23aa676 8006 u16 reason;
83739b03 8007 int ret;
b23aa676
SO		 8008
8009 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8010 reason = WLAN_REASON_DEAUTH_LEAVING;
8011 else
8012 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8013
8014 if (reason == 0)
8015 return -EINVAL;
8016
074ac8df 8017 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8018 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8019 return -EOPNOTSUPP;
b23aa676 8020
83739b03
JB		 8021 wdev_lock(dev->ieee80211_ptr);
8022 ret = cfg80211_disconnect(rdev, dev, reason, true);
8023 wdev_unlock(dev->ieee80211_ptr);
8024 return ret;
b23aa676
SO		 8025}
8026
463d0183
JB		 8027static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8028{
4c476991 8029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8030 struct net *net;
8031 int err;
463d0183 8032
4b681c82
VK		 8033 if (info->attrs[NL80211_ATTR_PID]) {
8034 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8035
8036 net = get_net_ns_by_pid(pid);
8037 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8038 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8039
4b681c82
VK		 8040 net = get_net_ns_by_fd(fd);
8041 } else {
8042 return -EINVAL;
8043 }
463d0183 8044
4c476991
JB		 8045 if (IS_ERR(net))
8046 return PTR_ERR(net);
463d0183
JB		 8047
8048 err = 0;
8049
8050 /* check if anything to do */
4c476991
JB		 8051 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8052 err = cfg80211_switch_netns(rdev, net);
463d0183 8053
463d0183 8054 put_net(net);
463d0183
JB		 8055 return err;
8056}
8057
67fbb16b
SO		 8058static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8059{
4c476991 8060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8061 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8062 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8063 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8064 struct cfg80211_pmksa pmksa;
8065
8066 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8067
8068 if (!info->attrs[NL80211_ATTR_MAC])
8069 return -EINVAL;
8070
8071 if (!info->attrs[NL80211_ATTR_PMKID])
8072 return -EINVAL;
8073
67fbb16b
SO		 8074 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8075 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8076
074ac8df 8077 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8078 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8079 return -EOPNOTSUPP;
67fbb16b
SO		 8080
8081 switch (info->genlhdr->cmd) {
8082 case NL80211_CMD_SET_PMKSA:
8083 rdev_ops = rdev->ops->set_pmksa;
8084 break;
8085 case NL80211_CMD_DEL_PMKSA:
8086 rdev_ops = rdev->ops->del_pmksa;
8087 break;
8088 default:
8089 WARN_ON(1);
8090 break;
8091 }
8092
4c476991
JB		 8093 if (!rdev_ops)
8094 return -EOPNOTSUPP;
67fbb16b 8095
4c476991 8096 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8097}
8098
8099static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8100{
4c476991
JB		 8101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8102 struct net_device *dev = info->user_ptr[1];
67fbb16b 8103
074ac8df 8104 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8105 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8106 return -EOPNOTSUPP;
67fbb16b 8107
4c476991
JB		 8108 if (!rdev->ops->flush_pmksa)
8109 return -EOPNOTSUPP;
67fbb16b 8110
e35e4d28 8111 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8112}
8113
109086ce
AN		 8114static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8115{
8116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8117 struct net_device *dev = info->user_ptr[1];
8118 u8 action_code, dialog_token;
df942e7b 8119 u32 peer_capability = 0;
109086ce
AN		 8120 u16 status_code;
8121 u8 *peer;
31fa97c5 8122 bool initiator;
109086ce
AN		 8123
8124 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8125 !rdev->ops->tdls_mgmt)
8126 return -EOPNOTSUPP;
8127
8128 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8129 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8130 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8131 !info->attrs[NL80211_ATTR_IE] ||
8132 !info->attrs[NL80211_ATTR_MAC])
8133 return -EINVAL;
8134
8135 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8136 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8137 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8138 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8139 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8140 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8141 peer_capability =
8142 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8143
e35e4d28 8144 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8145 dialog_token, status_code, peer_capability,
31fa97c5 8146 initiator,
e35e4d28
HG		 8147 nla_data(info->attrs[NL80211_ATTR_IE]),
8148 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8149}
8150
8151static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8152{
8153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8154 struct net_device *dev = info->user_ptr[1];
8155 enum nl80211_tdls_operation operation;
8156 u8 *peer;
8157
8158 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8159 !rdev->ops->tdls_oper)
8160 return -EOPNOTSUPP;
8161
8162 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8163 !info->attrs[NL80211_ATTR_MAC])
8164 return -EINVAL;
8165
8166 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8167 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8168
e35e4d28 8169 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8170}
8171
9588bbd5
JM		 8172static int nl80211_remain_on_channel(struct sk_buff *skb,
8173 struct genl_info *info)
8174{
4c476991 8175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8176 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8177 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8178 struct sk_buff *msg;
8179 void *hdr;
8180 u64 cookie;
683b6d3b 8181 u32 duration;
9588bbd5
JM		 8182 int err;
8183
8184 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8185 !info->attrs[NL80211_ATTR_DURATION])
8186 return -EINVAL;
8187
8188 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8189
ebf348fc
JB		 8190 if (!rdev->ops->remain_on_channel ||
8191 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8192 return -EOPNOTSUPP;
8193
9588bbd5 8194 /*
ebf348fc
JB		 8195 * We should be on that channel for at least a minimum amount of
8196 * time (10ms) but no longer than the driver supports.
9588bbd5 8197 */
ebf348fc 8198 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8199 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8200 return -EINVAL;
8201
683b6d3b
JB		 8202 err = nl80211_parse_chandef(rdev, info, &chandef);
8203 if (err)
8204 return err;
9588bbd5
JM		 8205
8206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8207 if (!msg)
8208 return -ENOMEM;
9588bbd5 8209
15e47304 8210 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8211 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8212 if (!hdr) {
8213 err = -ENOBUFS;
9588bbd5
JM		 8214 goto free_msg;
8215 }
8216
683b6d3b
JB		 8217 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8218 duration, &cookie);
9588bbd5
JM		 8219
8220 if (err)
8221 goto free_msg;
8222
9360ffd1
DM		 8223 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8224 goto nla_put_failure;
9588bbd5
JM		 8225
8226 genlmsg_end(msg, hdr);
4c476991
JB		 8227
8228 return genlmsg_reply(msg, info);
9588bbd5
JM		 8229
8230 nla_put_failure:
8231 err = -ENOBUFS;
8232 free_msg:
8233 nlmsg_free(msg);
9588bbd5
JM		 8234 return err;
8235}
8236
8237static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8238 struct genl_info *info)
8239{
4c476991 8240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8241 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8242 u64 cookie;
9588bbd5
JM		 8243
8244 if (!info->attrs[NL80211_ATTR_COOKIE])
8245 return -EINVAL;
8246
4c476991
JB		 8247 if (!rdev->ops->cancel_remain_on_channel)
8248 return -EOPNOTSUPP;
9588bbd5 8249
9588bbd5
JM		 8250 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8251
e35e4d28 8252 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8253}
8254
13ae75b1
JM		 8255static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8256 u8 *rates, u8 rates_len)
8257{
8258 u8 i;
8259 u32 mask = 0;
8260
8261 for (i = 0; i < rates_len; i++) {
8262 int rate = (rates[i] & 0x7f) * 5;
8263 int ridx;
8264 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8265 struct ieee80211_rate *srate =
8266 &sband->bitrates[ridx];
8267 if (rate == srate->bitrate) {
8268 mask |= 1 << ridx;
8269 break;
8270 }
8271 }
8272 if (ridx == sband->n_bitrates)
8273 return 0; /* rate not found */
8274 }
8275
8276 return mask;
8277}
8278
24db78c0
SW		 8279static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8280 u8 *rates, u8 rates_len,
8281 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8282{
8283 u8 i;
8284
8285 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8286
8287 for (i = 0; i < rates_len; i++) {
8288 int ridx, rbit;
8289
8290 ridx = rates[i] / 8;
8291 rbit = BIT(rates[i] % 8);
8292
8293 /* check validity */
910570b5 8294 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8295 return false;
8296
8297 /* check availability */
8298 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8299 mcs[ridx] |= rbit;
8300 else
8301 return false;
8302 }
8303
8304 return true;
8305}
8306
204e35a9
JD		 8307static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8308{
8309 u16 mcs_mask = 0;
8310
8311 switch (vht_mcs_map) {
8312 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8313 break;
8314 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8315 mcs_mask = 0x00FF;
8316 break;
8317 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8318 mcs_mask = 0x01FF;
8319 break;
8320 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8321 mcs_mask = 0x03FF;
8322 break;
8323 default:
8324 break;
8325 }
8326
8327 return mcs_mask;
8328}
8329
8330static void vht_build_mcs_mask(u16 vht_mcs_map,
8331 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8332{
8333 u8 nss;
8334
8335 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8336 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8337 vht_mcs_map >>= 2;
8338 }
8339}
8340
8341static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8342 struct nl80211_txrate_vht *txrate,
8343 u16 mcs[NL80211_VHT_NSS_MAX])
8344{
8345 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8346 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8347 u8 i;
8348
8349 if (!sband->vht_cap.vht_supported)
8350 return false;
8351
8352 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8353
8354 /* Build vht_mcs_mask from VHT capabilities */
8355 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8356
8357 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8358 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8359 mcs[i] = txrate->mcs[i];
8360 else
8361 return false;
8362 }
8363
8364 return true;
8365}
8366
b54452b0 8367static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8368 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8369 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8370 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8371 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8372 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8373 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8374};
8375
8376static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8377 struct genl_info *info)
8378{
8379 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8381 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8382 int rem, i;
8383 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8384 struct nlattr *tx_rates;
8385 struct ieee80211_supported_band *sband;
204e35a9 8386 u16 vht_tx_mcs_map;
13ae75b1 8387
4c476991
JB		 8388 if (!rdev->ops->set_bitrate_mask)
8389 return -EOPNOTSUPP;
13ae75b1
JM		 8390
8391 memset(&mask, 0, sizeof(mask));
8392 /* Default to all rates enabled */
8393 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8394 sband = rdev->wiphy.bands[i];
7869303b
JD		 8395
8396 if (!sband)
8397 continue;
8398
8399 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8400 memcpy(mask.control[i].ht_mcs,
7869303b 8401 sband->ht_cap.mcs.rx_mask,
d1e33e65 8402 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8403
8404 if (!sband->vht_cap.vht_supported)
8405 continue;
8406
8407 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8408 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8409 }
8410
b9243ab0
JD		 8411 /* if no rates are given set it back to the defaults */
8412 if (!info->attrs[NL80211_ATTR_TX_RATES])
8413 goto out;
8414
13ae75b1
JM		 8415 /*
8416 * The nested attribute uses enum nl80211_band as the index. This maps
8417 * directly to the enum ieee80211_band values used in cfg80211.
8418 */
24db78c0 8419 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8420 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8421 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8422 int err;
8423
4c476991
JB		 8424 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8425 return -EINVAL;
13ae75b1 8426 sband = rdev->wiphy.bands[band];
4c476991
JB		 8427 if (sband == NULL)
8428 return -EINVAL;
ae811e21
JB		 8429 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8430 nla_len(tx_rates), nl80211_txattr_policy);
8431 if (err)
8432 return err;
13ae75b1
JM		 8433 if (tb[NL80211_TXRATE_LEGACY]) {
8434 mask.control[band].legacy = rateset_to_mask(
8435 sband,
8436 nla_data(tb[NL80211_TXRATE_LEGACY]),
8437 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8438 if ((mask.control[band].legacy == 0) &&
8439 nla_len(tb[NL80211_TXRATE_LEGACY]))
8440 return -EINVAL;
24db78c0 8441 }
d1e33e65 8442 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8443 if (!ht_rateset_to_mask(
8444 sband,
d1e33e65
JD		 8445 nla_data(tb[NL80211_TXRATE_HT]),
8446 nla_len(tb[NL80211_TXRATE_HT]),
8447 mask.control[band].ht_mcs))
24db78c0
SW		 8448 return -EINVAL;
8449 }
204e35a9
JD		 8450 if (tb[NL80211_TXRATE_VHT]) {
8451 if (!vht_set_mcs_mask(
8452 sband,
8453 nla_data(tb[NL80211_TXRATE_VHT]),
8454 mask.control[band].vht_mcs))
8455 return -EINVAL;
8456 }
0b9323f6
JD		 8457 if (tb[NL80211_TXRATE_GI]) {
8458 mask.control[band].gi =
8459 nla_get_u8(tb[NL80211_TXRATE_GI]);
8460 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8461 return -EINVAL;
8462 }
24db78c0
SW		 8463
8464 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8465 /* don't allow empty legacy rates if HT or VHT
8466 * are not even supported.
8467 */
8468 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8469 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8470 return -EINVAL;
8471
8472 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8473 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8474 goto out;
8475
8476 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8477 if (mask.control[band].vht_mcs[i])
8478 goto out;
24db78c0
SW		 8479
8480 /* legacy and mcs rates may not be both empty */
204e35a9 8481 return -EINVAL;
13ae75b1
JM		 8482 }
8483 }
8484
b9243ab0 8485out:
e35e4d28 8486 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8487}
8488
2e161f78 8489static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8490{
4c476991 8491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8492 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8493 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8494
8495 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8496 return -EINVAL;
8497
2e161f78
JB		 8498 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8499 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8500
71bbc994
JB		 8501 switch (wdev->iftype) {
8502 case NL80211_IFTYPE_STATION:
8503 case NL80211_IFTYPE_ADHOC:
8504 case NL80211_IFTYPE_P2P_CLIENT:
8505 case NL80211_IFTYPE_AP:
8506 case NL80211_IFTYPE_AP_VLAN:
8507 case NL80211_IFTYPE_MESH_POINT:
8508 case NL80211_IFTYPE_P2P_GO:
98104fde 8509 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8510 break;
8511 default:
4c476991 8512 return -EOPNOTSUPP;
71bbc994 8513 }
026331c4
JM		 8514
8515 /* not much point in registering if we can't reply */
4c476991
JB		 8516 if (!rdev->ops->mgmt_tx)
8517 return -EOPNOTSUPP;
026331c4 8518
15e47304 8519 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8520 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8521 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8522}
8523
2e161f78 8524static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8525{
4c476991 8526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8527 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8528 struct cfg80211_chan_def chandef;
026331c4 8529 int err;
d64d373f 8530 void *hdr = NULL;
026331c4 8531 u64 cookie;
e247bd90 8532 struct sk_buff *msg = NULL;
b176e629
AO		 8533 struct cfg80211_mgmt_tx_params params = {
8534 .dont_wait_for_ack =
8535 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8536 };
026331c4 8537
683b6d3b 8538 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8539 return -EINVAL;
8540
4c476991
JB		 8541 if (!rdev->ops->mgmt_tx)
8542 return -EOPNOTSUPP;
026331c4 8543
71bbc994 8544 switch (wdev->iftype) {
ea141b75
AQ		 8545 case NL80211_IFTYPE_P2P_DEVICE:
8546 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8547 return -EINVAL;
71bbc994
JB		 8548 case NL80211_IFTYPE_STATION:
8549 case NL80211_IFTYPE_ADHOC:
8550 case NL80211_IFTYPE_P2P_CLIENT:
8551 case NL80211_IFTYPE_AP:
8552 case NL80211_IFTYPE_AP_VLAN:
8553 case NL80211_IFTYPE_MESH_POINT:
8554 case NL80211_IFTYPE_P2P_GO:
8555 break;
8556 default:
4c476991 8557 return -EOPNOTSUPP;
71bbc994 8558 }
026331c4 8559
f7ca38df 8560 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8561 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8562 return -EINVAL;
b176e629 8563 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8564
8565 /*
8566 * We should wait on the channel for at least a minimum amount
8567 * of time (10ms) but no longer than the driver supports.
8568 */
b176e629
AO		 8569 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8570 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8571 return -EINVAL;
8572
f7ca38df
JB		 8573 }
8574
b176e629 8575 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8576
b176e629 8577 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8578 return -EINVAL;
8579
b176e629 8580 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8581
ea141b75
AQ		 8582 /* get the channel if any has been specified, otherwise pass NULL to
8583 * the driver. The latter will use the current one
8584 */
8585 chandef.chan = NULL;
8586 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8587 err = nl80211_parse_chandef(rdev, info, &chandef);
8588 if (err)
8589 return err;
8590 }
8591
b176e629 8592 if (!chandef.chan && params.offchan)
ea141b75 8593 return -EINVAL;
026331c4 8594
34d22ce2
AO		 8595 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8596 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8597
8598 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8599 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8600 int i;
8601
8602 if (len % sizeof(u16))
8603 return -EINVAL;
8604
8605 params.n_csa_offsets = len / sizeof(u16);
8606 params.csa_offsets =
8607 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8608
8609 /* check that all the offsets fit the frame */
8610 for (i = 0; i < params.n_csa_offsets; i++) {
8611 if (params.csa_offsets[i] >= params.len)
8612 return -EINVAL;
8613 }
8614 }
8615
b176e629 8616 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8617 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8618 if (!msg)
8619 return -ENOMEM;
026331c4 8620
15e47304 8621 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8622 NL80211_CMD_FRAME);
cb35fba3
DC		 8623 if (!hdr) {
8624 err = -ENOBUFS;
e247bd90
JB		 8625 goto free_msg;
8626 }
026331c4 8627 }
e247bd90 8628
b176e629
AO		 8629 params.chan = chandef.chan;
8630 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8631 if (err)
8632 goto free_msg;
8633
e247bd90 8634 if (msg) {
9360ffd1
DM		 8635 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8636 goto nla_put_failure;
026331c4 8637
e247bd90
JB		 8638 genlmsg_end(msg, hdr);
8639 return genlmsg_reply(msg, info);
8640 }
8641
8642 return 0;
026331c4
JM		 8643
8644 nla_put_failure:
8645 err = -ENOBUFS;
8646 free_msg:
8647 nlmsg_free(msg);
026331c4
JM		 8648 return err;
8649}
8650
f7ca38df
JB		 8651static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8652{
8653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8654 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8655 u64 cookie;
8656
8657 if (!info->attrs[NL80211_ATTR_COOKIE])
8658 return -EINVAL;
8659
8660 if (!rdev->ops->mgmt_tx_cancel_wait)
8661 return -EOPNOTSUPP;
8662
71bbc994
JB		 8663 switch (wdev->iftype) {
8664 case NL80211_IFTYPE_STATION:
8665 case NL80211_IFTYPE_ADHOC:
8666 case NL80211_IFTYPE_P2P_CLIENT:
8667 case NL80211_IFTYPE_AP:
8668 case NL80211_IFTYPE_AP_VLAN:
8669 case NL80211_IFTYPE_P2P_GO:
98104fde 8670 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8671 break;
8672 default:
f7ca38df 8673 return -EOPNOTSUPP;
71bbc994 8674 }
f7ca38df
JB		 8675
8676 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8677
e35e4d28 8678 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8679}
8680
ffb9eb3d
KV		 8681static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8682{
4c476991 8683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8684 struct wireless_dev *wdev;
4c476991 8685 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8686 u8 ps_state;
8687 bool state;
8688 int err;
8689
4c476991
JB		 8690 if (!info->attrs[NL80211_ATTR_PS_STATE])
8691 return -EINVAL;
ffb9eb3d
KV		 8692
8693 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8694
4c476991
JB		 8695 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8696 return -EINVAL;
ffb9eb3d
KV		 8697
8698 wdev = dev->ieee80211_ptr;
8699
4c476991
JB		 8700 if (!rdev->ops->set_power_mgmt)
8701 return -EOPNOTSUPP;
ffb9eb3d
KV		 8702
8703 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8704
8705 if (state == wdev->ps)
4c476991 8706 return 0;
ffb9eb3d 8707
e35e4d28 8708 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8709 if (!err)
8710 wdev->ps = state;
ffb9eb3d
KV		 8711 return err;
8712}
8713
8714static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8715{
4c476991 8716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8717 enum nl80211_ps_state ps_state;
8718 struct wireless_dev *wdev;
4c476991 8719 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8720 struct sk_buff *msg;
8721 void *hdr;
8722 int err;
8723
ffb9eb3d
KV		 8724 wdev = dev->ieee80211_ptr;
8725
4c476991
JB		 8726 if (!rdev->ops->set_power_mgmt)
8727 return -EOPNOTSUPP;
ffb9eb3d
KV		 8728
8729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8730 if (!msg)
8731 return -ENOMEM;
ffb9eb3d 8732
15e47304 8733 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8734 NL80211_CMD_GET_POWER_SAVE);
8735 if (!hdr) {
4c476991 8736 err = -ENOBUFS;
ffb9eb3d
KV		 8737 goto free_msg;
8738 }
8739
8740 if (wdev->ps)
8741 ps_state = NL80211_PS_ENABLED;
8742 else
8743 ps_state = NL80211_PS_DISABLED;
8744
9360ffd1
DM		 8745 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8746 goto nla_put_failure;
ffb9eb3d
KV		 8747
8748 genlmsg_end(msg, hdr);
4c476991 8749 return genlmsg_reply(msg, info);
ffb9eb3d 8750
4c476991 8751 nla_put_failure:
ffb9eb3d 8752 err = -ENOBUFS;
4c476991 8753 free_msg:
ffb9eb3d 8754 nlmsg_free(msg);
ffb9eb3d
KV		 8755 return err;
8756}
8757
94e860f1
JB		 8758static const struct nla_policy
8759nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8760 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8761 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8762 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8763 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8764 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8765 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8766};
8767
84f10708 8768static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8769 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8770{
8771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8772 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8773 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8774
d9d8b019 8775 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8776 return -EINVAL;
8777
84f10708
TP		 8778 if (!rdev->ops->set_cqm_txe_config)
8779 return -EOPNOTSUPP;
8780
8781 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8782 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8783 return -EOPNOTSUPP;
8784
e35e4d28 8785 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8786}
8787
d6dc1a38
JO		 8788static int nl80211_set_cqm_rssi(struct genl_info *info,
8789 s32 threshold, u32 hysteresis)
8790{
4c476991 8791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8792 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8793 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8794
8795 if (threshold > 0)
8796 return -EINVAL;
8797
1da5fcc8
JB		 8798 /* disabling - hysteresis should also be zero then */
8799 if (threshold == 0)
8800 hysteresis = 0;
d6dc1a38 8801
4c476991
JB		 8802 if (!rdev->ops->set_cqm_rssi_config)
8803 return -EOPNOTSUPP;
d6dc1a38 8804
074ac8df 8805 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8806 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8807 return -EOPNOTSUPP;
d6dc1a38 8808
e35e4d28 8809 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8810}
8811
8812static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8813{
8814 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8815 struct nlattr *cqm;
8816 int err;
8817
8818 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8819 if (!cqm)
8820 return -EINVAL;
d6dc1a38
JO		 8821
8822 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8823 nl80211_attr_cqm_policy);
8824 if (err)
1da5fcc8 8825 return err;
d6dc1a38
JO		 8826
8827 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8828 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8829 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8830 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8831
1da5fcc8
JB		 8832 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8833 }
8834
8835 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8836 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8837 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8838 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8839 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8840 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8841
8842 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8843 }
8844
8845 return -EINVAL;
d6dc1a38
JO		 8846}
8847
6e0bd6c3
RL		 8848static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8849{
8850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8851 struct net_device *dev = info->user_ptr[1];
8852 struct ocb_setup setup = {};
8853 int err;
8854
8855 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8856 if (err)
8857 return err;
8858
8859 return cfg80211_join_ocb(rdev, dev, &setup);
8860}
8861
8862static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8863{
8864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8865 struct net_device *dev = info->user_ptr[1];
8866
8867 return cfg80211_leave_ocb(rdev, dev);
8868}
8869
29cbe68c
JB		 8870static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8871{
8872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8873 struct net_device *dev = info->user_ptr[1];
8874 struct mesh_config cfg;
c80d545d 8875 struct mesh_setup setup;
29cbe68c
JB		 8876 int err;
8877
8878 /* start with default */
8879 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8880 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8881
24bdd9f4 8882 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8883 /* and parse parameters if given */
24bdd9f4 8884 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8885 if (err)
8886 return err;
8887 }
8888
8889 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8890 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8891 return -EINVAL;
8892
c80d545d
JC		 8893 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8894 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8895
4bb62344
CYY		 8896 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8897 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8898 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8899 return -EINVAL;
8900
9bdbf04d
MP		 8901 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8902 setup.beacon_interval =
8903 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8904 if (setup.beacon_interval < 10 ||
8905 setup.beacon_interval > 10000)
8906 return -EINVAL;
8907 }
8908
8909 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8910 setup.dtim_period =
8911 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8912 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8913 return -EINVAL;
8914 }
8915
c80d545d
JC		 8916 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8917 /* parse additional setup parameters if given */
8918 err = nl80211_parse_mesh_setup(info, &setup);
8919 if (err)
8920 return err;
8921 }
8922
d37bb18a
TP		 8923 if (setup.user_mpm)
8924 cfg.auto_open_plinks = false;
8925
cc1d2806 8926 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8927 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8928 if (err)
8929 return err;
cc1d2806
JB		 8930 } else {
8931 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8932 setup.chandef.chan = NULL;
cc1d2806
JB		 8933 }
8934
ffb3cf30
AN		 8935 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8936 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8937 int n_rates =
8938 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8939 struct ieee80211_supported_band *sband;
8940
8941 if (!setup.chandef.chan)
8942 return -EINVAL;
8943
8944 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8945
8946 err = ieee80211_get_ratemask(sband, rates, n_rates,
8947 &setup.basic_rates);
8948 if (err)
8949 return err;
8950 }
8951
c80d545d 8952 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8953}
8954
8955static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8956{
8957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8958 struct net_device *dev = info->user_ptr[1];
8959
8960 return cfg80211_leave_mesh(rdev, dev);
8961}
8962
dfb89c56 8963#ifdef CONFIG_PM
bb92d199
AK		 8964static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8965 struct cfg80211_registered_device *rdev)
8966{
6abb9cb9 8967 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8968 struct nlattr *nl_pats, *nl_pat;
8969 int i, pat_len;
8970
6abb9cb9 8971 if (!wowlan->n_patterns)
bb92d199
AK		 8972 return 0;
8973
8974 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8975 if (!nl_pats)
8976 return -ENOBUFS;
8977
6abb9cb9 8978 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8979 nl_pat = nla_nest_start(msg, i + 1);
8980 if (!nl_pat)
8981 return -ENOBUFS;
6abb9cb9 8982 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8983 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8984 wowlan->patterns[i].mask) ||
50ac6607
AK		 8985 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8986 wowlan->patterns[i].pattern) ||
8987 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8988 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8989 return -ENOBUFS;
8990 nla_nest_end(msg, nl_pat);
8991 }
8992 nla_nest_end(msg, nl_pats);
8993
8994 return 0;
8995}
8996
2a0e047e
JB		 8997static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8998 struct cfg80211_wowlan_tcp *tcp)
8999{
9000 struct nlattr *nl_tcp;
9001
9002 if (!tcp)
9003 return 0;
9004
9005 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9006 if (!nl_tcp)
9007 return -ENOBUFS;
9008
930345ea
JB		 9009 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9010 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9011 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9012 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9013 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9014 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9015 tcp->payload_len, tcp->payload) ||
9016 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9017 tcp->data_interval) ||
9018 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9019 tcp->wake_len, tcp->wake_data) ||
9020 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9021 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9022 return -ENOBUFS;
9023
9024 if (tcp->payload_seq.len &&
9025 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9026 sizeof(tcp->payload_seq), &tcp->payload_seq))
9027 return -ENOBUFS;
9028
9029 if (tcp->payload_tok.len &&
9030 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9031 sizeof(tcp->payload_tok) + tcp->tokens_size,
9032 &tcp->payload_tok))
9033 return -ENOBUFS;
9034
e248ad30
JB		 9035 nla_nest_end(msg, nl_tcp);
9036
2a0e047e
JB		 9037 return 0;
9038}
9039
75453ccb
LC		 9040static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9041 struct cfg80211_sched_scan_request *req)
9042{
3b06d277 9043 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9044 int i;
9045
9046 if (!req)
9047 return 0;
9048
9049 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9050 if (!nd)
9051 return -ENOBUFS;
9052
3b06d277
AS		 9053 if (req->n_scan_plans == 1 &&
9054 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9055 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9056 return -ENOBUFS;
9057
21fea567
LC		 9058 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9059 return -ENOBUFS;
9060
75453ccb
LC		 9061 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9062 if (!freqs)
9063 return -ENOBUFS;
9064
9065 for (i = 0; i < req->n_channels; i++)
9066 nla_put_u32(msg, i, req->channels[i]->center_freq);
9067
9068 nla_nest_end(msg, freqs);
9069
9070 if (req->n_match_sets) {
9071 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9072 for (i = 0; i < req->n_match_sets; i++) {
9073 match = nla_nest_start(msg, i);
9074 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9075 req->match_sets[i].ssid.ssid_len,
9076 req->match_sets[i].ssid.ssid);
9077 nla_nest_end(msg, match);
9078 }
9079 nla_nest_end(msg, matches);
9080 }
9081
3b06d277
AS		 9082 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9083 if (!scan_plans)
9084 return -ENOBUFS;
9085
9086 for (i = 0; i < req->n_scan_plans; i++) {
9087 scan_plan = nla_nest_start(msg, i + 1);
9088 if (!scan_plan ||
9089 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9090 req->scan_plans[i].interval) ||
9091 (req->scan_plans[i].iterations &&
9092 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9093 req->scan_plans[i].iterations)))
9094 return -ENOBUFS;
9095 nla_nest_end(msg, scan_plan);
9096 }
9097 nla_nest_end(msg, scan_plans);
9098
75453ccb
LC		 9099 nla_nest_end(msg, nd);
9100
9101 return 0;
9102}
9103
ff1b6e69
JB		 9104static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9105{
9106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9107 struct sk_buff *msg;
9108 void *hdr;
2a0e047e 9109 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9110
964dc9e2 9111 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9112 return -EOPNOTSUPP;
9113
6abb9cb9 9114 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9115 /* adjust size to have room for all the data */
6abb9cb9
JB		 9116 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9117 rdev->wiphy.wowlan_config->tcp->payload_len +
9118 rdev->wiphy.wowlan_config->tcp->wake_len +
9119 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9120 }
9121
9122 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9123 if (!msg)
9124 return -ENOMEM;
9125
15e47304 9126 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9127 NL80211_CMD_GET_WOWLAN);
9128 if (!hdr)
9129 goto nla_put_failure;
9130
6abb9cb9 9131 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9132 struct nlattr *nl_wowlan;
9133
9134 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9135 if (!nl_wowlan)
9136 goto nla_put_failure;
9137
6abb9cb9 9138 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9139 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9140 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9141 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9142 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9143 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9144 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9145 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9146 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9147 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9148 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9149 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9150 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9151 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9152 goto nla_put_failure;
2a0e047e 9153
bb92d199
AK		 9154 if (nl80211_send_wowlan_patterns(msg, rdev))
9155 goto nla_put_failure;
2a0e047e 9156
6abb9cb9
JB		 9157 if (nl80211_send_wowlan_tcp(msg,
9158 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9159 goto nla_put_failure;
75453ccb
LC		 9160
9161 if (nl80211_send_wowlan_nd(
9162 msg,
9163 rdev->wiphy.wowlan_config->nd_config))
9164 goto nla_put_failure;
2a0e047e 9165
ff1b6e69
JB		 9166 nla_nest_end(msg, nl_wowlan);
9167 }
9168
9169 genlmsg_end(msg, hdr);
9170 return genlmsg_reply(msg, info);
9171
9172nla_put_failure:
9173 nlmsg_free(msg);
9174 return -ENOBUFS;
9175}
9176
2a0e047e
JB		 9177static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9178 struct nlattr *attr,
9179 struct cfg80211_wowlan *trig)
9180{
9181 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9182 struct cfg80211_wowlan_tcp *cfg;
9183 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9184 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9185 u32 size;
9186 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9187 int err, port;
9188
964dc9e2 9189 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9190 return -EINVAL;
9191
9192 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9193 nla_data(attr), nla_len(attr),
9194 nl80211_wowlan_tcp_policy);
9195 if (err)
9196 return err;
9197
9198 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9199 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9200 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9201 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9202 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9203 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9204 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9205 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9206 return -EINVAL;
9207
9208 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9209 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9210 return -EINVAL;
9211
9212 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9213 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9214 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9215 return -EINVAL;
9216
9217 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9218 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9219 return -EINVAL;
9220
9221 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9222 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9223 return -EINVAL;
9224
9225 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9226 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9227
9228 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9229 tokens_size = tokln - sizeof(*tok);
9230
9231 if (!tok->len || tokens_size % tok->len)
9232 return -EINVAL;
964dc9e2 9233 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9234 return -EINVAL;
964dc9e2 9235 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9236 return -EINVAL;
964dc9e2 9237 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9238 return -EINVAL;
964dc9e2 9239 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9240 return -EINVAL;
9241 if (tok->offset + tok->len > data_size)
9242 return -EINVAL;
9243 }
9244
9245 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9246 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9247 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9248 return -EINVAL;
9249 if (seq->len == 0 || seq->len > 4)
9250 return -EINVAL;
9251 if (seq->len + seq->offset > data_size)
9252 return -EINVAL;
9253 }
9254
9255 size = sizeof(*cfg);
9256 size += data_size;
9257 size += wake_size + wake_mask_size;
9258 size += tokens_size;
9259
9260 cfg = kzalloc(size, GFP_KERNEL);
9261 if (!cfg)
9262 return -ENOMEM;
67b61f6c
JB		 9263 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9264 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9265 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9266 ETH_ALEN);
9267 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9268 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9269 else
9270 port = 0;
9271#ifdef CONFIG_INET
9272 /* allocate a socket and port for it and use it */
9273 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9274 IPPROTO_TCP, &cfg->sock, 1);
9275 if (err) {
9276 kfree(cfg);
9277 return err;
9278 }
9279 if (inet_csk_get_port(cfg->sock->sk, port)) {
9280 sock_release(cfg->sock);
9281 kfree(cfg);
9282 return -EADDRINUSE;
9283 }
9284 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9285#else
9286 if (!port) {
9287 kfree(cfg);
9288 return -EINVAL;
9289 }
9290 cfg->src_port = port;
9291#endif
9292
9293 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9294 cfg->payload_len = data_size;
9295 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9296 memcpy((void *)cfg->payload,
9297 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9298 data_size);
9299 if (seq)
9300 cfg->payload_seq = *seq;
9301 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9302 cfg->wake_len = wake_size;
9303 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9304 memcpy((void *)cfg->wake_data,
9305 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9306 wake_size);
9307 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9308 data_size + wake_size;
9309 memcpy((void *)cfg->wake_mask,
9310 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9311 wake_mask_size);
9312 if (tok) {
9313 cfg->tokens_size = tokens_size;
9314 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9315 }
9316
9317 trig->tcp = cfg;
9318
9319 return 0;
9320}
9321
8cd4d456
LC		 9322static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9323 const struct wiphy_wowlan_support *wowlan,
9324 struct nlattr *attr,
9325 struct cfg80211_wowlan *trig)
9326{
9327 struct nlattr **tb;
9328 int err;
9329
9330 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9331 if (!tb)
9332 return -ENOMEM;
9333
9334 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9335 err = -EOPNOTSUPP;
9336 goto out;
9337 }
9338
9339 err = nla_parse(tb, NL80211_ATTR_MAX,
9340 nla_data(attr), nla_len(attr),
9341 nl80211_policy);
9342 if (err)
9343 goto out;
9344
ad2b26ab 9345 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9346 err = PTR_ERR_OR_ZERO(trig->nd_config);
9347 if (err)
9348 trig->nd_config = NULL;
9349
9350out:
9351 kfree(tb);
9352 return err;
9353}
9354
ff1b6e69
JB		 9355static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9356{
9357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9358 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9359 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9360 struct cfg80211_wowlan *ntrig;
964dc9e2 9361 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9362 int err, i;
6abb9cb9 9363 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9364 bool regular = false;
ff1b6e69 9365
964dc9e2 9366 if (!wowlan)
ff1b6e69
JB		 9367 return -EOPNOTSUPP;
9368
ae33bd81
JB		 9369 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9370 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9371 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9372 goto set_wakeup;
9373 }
ff1b6e69
JB		 9374
9375 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9376 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9377 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9378 nl80211_wowlan_policy);
9379 if (err)
9380 return err;
9381
9382 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9383 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9384 return -EINVAL;
9385 new_triggers.any = true;
9386 }
9387
9388 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9389 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9390 return -EINVAL;
9391 new_triggers.disconnect = true;
98fc4386 9392 regular = true;
ff1b6e69
JB		 9393 }
9394
9395 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9396 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9397 return -EINVAL;
9398 new_triggers.magic_pkt = true;
98fc4386 9399 regular = true;
ff1b6e69
JB		 9400 }
9401
77dbbb13
JB		 9402 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9403 return -EINVAL;
9404
9405 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9406 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9407 return -EINVAL;
9408 new_triggers.gtk_rekey_failure = true;
98fc4386 9409 regular = true;
77dbbb13
JB		 9410 }
9411
9412 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9413 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9414 return -EINVAL;
9415 new_triggers.eap_identity_req = true;
98fc4386 9416 regular = true;
77dbbb13
JB		 9417 }
9418
9419 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9420 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9421 return -EINVAL;
9422 new_triggers.four_way_handshake = true;
98fc4386 9423 regular = true;
77dbbb13
JB		 9424 }
9425
9426 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9427 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9428 return -EINVAL;
9429 new_triggers.rfkill_release = true;
98fc4386 9430 regular = true;
77dbbb13
JB		 9431 }
9432
ff1b6e69
JB		 9433 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9434 struct nlattr *pat;
9435 int n_patterns = 0;
bb92d199 9436 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9437 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9438
98fc4386
JB		 9439 regular = true;
9440
ff1b6e69
JB		 9441 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9442 rem)
9443 n_patterns++;
9444 if (n_patterns > wowlan->n_patterns)
9445 return -EINVAL;
9446
9447 new_triggers.patterns = kcalloc(n_patterns,
9448 sizeof(new_triggers.patterns[0]),
9449 GFP_KERNEL);
9450 if (!new_triggers.patterns)
9451 return -ENOMEM;
9452
9453 new_triggers.n_patterns = n_patterns;
9454 i = 0;
9455
9456 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9457 rem) {
922bd80f
JB		 9458 u8 *mask_pat;
9459
50ac6607
AK		 9460 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9461 nla_len(pat), NULL);
ff1b6e69 9462 err = -EINVAL;
50ac6607
AK		 9463 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9464 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9465 goto error;
50ac6607 9466 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9467 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9468 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9469 goto error;
9470 if (pat_len > wowlan->pattern_max_len ||
9471 pat_len < wowlan->pattern_min_len)
9472 goto error;
9473
50ac6607 9474 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9475 pkt_offset = 0;
9476 else
9477 pkt_offset = nla_get_u32(
50ac6607 9478 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9479 if (pkt_offset > wowlan->max_pkt_offset)
9480 goto error;
9481 new_triggers.patterns[i].pkt_offset = pkt_offset;
9482
922bd80f
JB		 9483 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9484 if (!mask_pat) {
ff1b6e69
JB		 9485 err = -ENOMEM;
9486 goto error;
9487 }
922bd80f
JB		 9488 new_triggers.patterns[i].mask = mask_pat;
9489 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9490 mask_len);
922bd80f
JB		 9491 mask_pat += mask_len;
9492 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9493 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9494 memcpy(mask_pat,
50ac6607 9495 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9496 pat_len);
9497 i++;
9498 }
9499 }
9500
2a0e047e 9501 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9502 regular = true;
2a0e047e
JB		 9503 err = nl80211_parse_wowlan_tcp(
9504 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9505 &new_triggers);
9506 if (err)
9507 goto error;
9508 }
9509
8cd4d456 9510 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9511 regular = true;
8cd4d456
LC		 9512 err = nl80211_parse_wowlan_nd(
9513 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9514 &new_triggers);
9515 if (err)
9516 goto error;
9517 }
9518
98fc4386
JB		 9519 /* The 'any' trigger means the device continues operating more or less
9520 * as in its normal operation mode and wakes up the host on most of the
9521 * normal interrupts (like packet RX, ...)
9522 * It therefore makes little sense to combine with the more constrained
9523 * wakeup trigger modes.
9524 */
9525 if (new_triggers.any && regular) {
9526 err = -EINVAL;
9527 goto error;
9528 }
9529
ae33bd81
JB		 9530 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9531 if (!ntrig) {
9532 err = -ENOMEM;
9533 goto error;
ff1b6e69 9534 }
ae33bd81 9535 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9536 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9537
ae33bd81 9538 set_wakeup:
6abb9cb9
JB		 9539 if (rdev->ops->set_wakeup &&
9540 prev_enabled != !!rdev->wiphy.wowlan_config)
9541 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9542
ff1b6e69
JB		 9543 return 0;
9544 error:
9545 for (i = 0; i < new_triggers.n_patterns; i++)
9546 kfree(new_triggers.patterns[i].mask);
9547 kfree(new_triggers.patterns);
2a0e047e
JB		 9548 if (new_triggers.tcp && new_triggers.tcp->sock)
9549 sock_release(new_triggers.tcp->sock);
9550 kfree(new_triggers.tcp);
e5dbe070 9551 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9552 return err;
9553}
dfb89c56 9554#endif
ff1b6e69 9555
be29b99a
AK		 9556static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9557 struct cfg80211_registered_device *rdev)
9558{
9559 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9560 int i, j, pat_len;
9561 struct cfg80211_coalesce_rules *rule;
9562
9563 if (!rdev->coalesce->n_rules)
9564 return 0;
9565
9566 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9567 if (!nl_rules)
9568 return -ENOBUFS;
9569
9570 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9571 nl_rule = nla_nest_start(msg, i + 1);
9572 if (!nl_rule)
9573 return -ENOBUFS;
9574
9575 rule = &rdev->coalesce->rules[i];
9576 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9577 rule->delay))
9578 return -ENOBUFS;
9579
9580 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9581 rule->condition))
9582 return -ENOBUFS;
9583
9584 nl_pats = nla_nest_start(msg,
9585 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9586 if (!nl_pats)
9587 return -ENOBUFS;
9588
9589 for (j = 0; j < rule->n_patterns; j++) {
9590 nl_pat = nla_nest_start(msg, j + 1);
9591 if (!nl_pat)
9592 return -ENOBUFS;
9593 pat_len = rule->patterns[j].pattern_len;
9594 if (nla_put(msg, NL80211_PKTPAT_MASK,
9595 DIV_ROUND_UP(pat_len, 8),
9596 rule->patterns[j].mask) ||
9597 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9598 rule->patterns[j].pattern) ||
9599 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9600 rule->patterns[j].pkt_offset))
9601 return -ENOBUFS;
9602 nla_nest_end(msg, nl_pat);
9603 }
9604 nla_nest_end(msg, nl_pats);
9605 nla_nest_end(msg, nl_rule);
9606 }
9607 nla_nest_end(msg, nl_rules);
9608
9609 return 0;
9610}
9611
9612static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9613{
9614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9615 struct sk_buff *msg;
9616 void *hdr;
9617
9618 if (!rdev->wiphy.coalesce)
9619 return -EOPNOTSUPP;
9620
9621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9622 if (!msg)
9623 return -ENOMEM;
9624
9625 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9626 NL80211_CMD_GET_COALESCE);
9627 if (!hdr)
9628 goto nla_put_failure;
9629
9630 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9631 goto nla_put_failure;
9632
9633 genlmsg_end(msg, hdr);
9634 return genlmsg_reply(msg, info);
9635
9636nla_put_failure:
9637 nlmsg_free(msg);
9638 return -ENOBUFS;
9639}
9640
9641void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9642{
9643 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9644 int i, j;
9645 struct cfg80211_coalesce_rules *rule;
9646
9647 if (!coalesce)
9648 return;
9649
9650 for (i = 0; i < coalesce->n_rules; i++) {
9651 rule = &coalesce->rules[i];
9652 for (j = 0; j < rule->n_patterns; j++)
9653 kfree(rule->patterns[j].mask);
9654 kfree(rule->patterns);
9655 }
9656 kfree(coalesce->rules);
9657 kfree(coalesce);
9658 rdev->coalesce = NULL;
9659}
9660
9661static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9662 struct nlattr *rule,
9663 struct cfg80211_coalesce_rules *new_rule)
9664{
9665 int err, i;
9666 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9667 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9668 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9669 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9670
9671 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9672 nla_len(rule), nl80211_coalesce_policy);
9673 if (err)
9674 return err;
9675
9676 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9677 new_rule->delay =
9678 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9679 if (new_rule->delay > coalesce->max_delay)
9680 return -EINVAL;
9681
9682 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9683 new_rule->condition =
9684 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9685 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9686 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9687 return -EINVAL;
9688
9689 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9690 return -EINVAL;
9691
9692 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9693 rem)
9694 n_patterns++;
9695 if (n_patterns > coalesce->n_patterns)
9696 return -EINVAL;
9697
9698 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9699 GFP_KERNEL);
9700 if (!new_rule->patterns)
9701 return -ENOMEM;
9702
9703 new_rule->n_patterns = n_patterns;
9704 i = 0;
9705
9706 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9707 rem) {
922bd80f
JB		 9708 u8 *mask_pat;
9709
be29b99a
AK		 9710 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9711 nla_len(pat), NULL);
9712 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9713 !pat_tb[NL80211_PKTPAT_PATTERN])
9714 return -EINVAL;
9715 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9716 mask_len = DIV_ROUND_UP(pat_len, 8);
9717 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9718 return -EINVAL;
9719 if (pat_len > coalesce->pattern_max_len ||
9720 pat_len < coalesce->pattern_min_len)
9721 return -EINVAL;
9722
9723 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9724 pkt_offset = 0;
9725 else
9726 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9727 if (pkt_offset > coalesce->max_pkt_offset)
9728 return -EINVAL;
9729 new_rule->patterns[i].pkt_offset = pkt_offset;
9730
922bd80f
JB		 9731 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9732 if (!mask_pat)
be29b99a 9733 return -ENOMEM;
922bd80f
JB		 9734
9735 new_rule->patterns[i].mask = mask_pat;
9736 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9737 mask_len);
9738
9739 mask_pat += mask_len;
9740 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9741 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9742 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9743 pat_len);
be29b99a
AK		 9744 i++;
9745 }
9746
9747 return 0;
9748}
9749
9750static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9751{
9752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9753 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9754 struct cfg80211_coalesce new_coalesce = {};
9755 struct cfg80211_coalesce *n_coalesce;
9756 int err, rem_rule, n_rules = 0, i, j;
9757 struct nlattr *rule;
9758 struct cfg80211_coalesce_rules *tmp_rule;
9759
9760 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9761 return -EOPNOTSUPP;
9762
9763 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9764 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 9765 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 9766 return 0;
9767 }
9768
9769 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9770 rem_rule)
9771 n_rules++;
9772 if (n_rules > coalesce->n_rules)
9773 return -EINVAL;
9774
9775 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9776 GFP_KERNEL);
9777 if (!new_coalesce.rules)
9778 return -ENOMEM;
9779
9780 new_coalesce.n_rules = n_rules;
9781 i = 0;
9782
9783 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9784 rem_rule) {
9785 err = nl80211_parse_coalesce_rule(rdev, rule,
9786 &new_coalesce.rules[i]);
9787 if (err)
9788 goto error;
9789
9790 i++;
9791 }
9792
a1056b1b 9793 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 9794 if (err)
9795 goto error;
9796
9797 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9798 if (!n_coalesce) {
9799 err = -ENOMEM;
9800 goto error;
9801 }
9802 cfg80211_rdev_free_coalesce(rdev);
9803 rdev->coalesce = n_coalesce;
9804
9805 return 0;
9806error:
9807 for (i = 0; i < new_coalesce.n_rules; i++) {
9808 tmp_rule = &new_coalesce.rules[i];
9809 for (j = 0; j < tmp_rule->n_patterns; j++)
9810 kfree(tmp_rule->patterns[j].mask);
9811 kfree(tmp_rule->patterns);
9812 }
9813 kfree(new_coalesce.rules);
9814
9815 return err;
9816}
9817
e5497d76
JB		 9818static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9819{
9820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9821 struct net_device *dev = info->user_ptr[1];
9822 struct wireless_dev *wdev = dev->ieee80211_ptr;
9823 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9824 struct cfg80211_gtk_rekey_data rekey_data;
9825 int err;
9826
9827 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9828 return -EINVAL;
9829
9830 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9831 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9832 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9833 nl80211_rekey_policy);
9834 if (err)
9835 return err;
9836
9837 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9838 return -ERANGE;
9839 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9840 return -ERANGE;
9841 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9842 return -ERANGE;
9843
78f686ca
JB		 9844 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9845 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9846 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9847
9848 wdev_lock(wdev);
9849 if (!wdev->current_bss) {
9850 err = -ENOTCONN;
9851 goto out;
9852 }
9853
9854 if (!rdev->ops->set_rekey_data) {
9855 err = -EOPNOTSUPP;
9856 goto out;
9857 }
9858
e35e4d28 9859 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9860 out:
9861 wdev_unlock(wdev);
9862 return err;
9863}
9864
28946da7
JB		 9865static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9866 struct genl_info *info)
9867{
9868 struct net_device *dev = info->user_ptr[1];
9869 struct wireless_dev *wdev = dev->ieee80211_ptr;
9870
9871 if (wdev->iftype != NL80211_IFTYPE_AP &&
9872 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9873 return -EINVAL;
9874
15e47304 9875 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9876 return -EBUSY;
9877
15e47304 9878 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9879 return 0;
9880}
9881
7f6cf311
JB		 9882static int nl80211_probe_client(struct sk_buff *skb,
9883 struct genl_info *info)
9884{
9885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9886 struct net_device *dev = info->user_ptr[1];
9887 struct wireless_dev *wdev = dev->ieee80211_ptr;
9888 struct sk_buff *msg;
9889 void *hdr;
9890 const u8 *addr;
9891 u64 cookie;
9892 int err;
9893
9894 if (wdev->iftype != NL80211_IFTYPE_AP &&
9895 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9896 return -EOPNOTSUPP;
9897
9898 if (!info->attrs[NL80211_ATTR_MAC])
9899 return -EINVAL;
9900
9901 if (!rdev->ops->probe_client)
9902 return -EOPNOTSUPP;
9903
9904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9905 if (!msg)
9906 return -ENOMEM;
9907
15e47304 9908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9909 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9910 if (!hdr) {
9911 err = -ENOBUFS;
7f6cf311
JB		 9912 goto free_msg;
9913 }
9914
9915 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9916
e35e4d28 9917 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9918 if (err)
9919 goto free_msg;
9920
9360ffd1
DM		 9921 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9922 goto nla_put_failure;
7f6cf311
JB		 9923
9924 genlmsg_end(msg, hdr);
9925
9926 return genlmsg_reply(msg, info);
9927
9928 nla_put_failure:
9929 err = -ENOBUFS;
9930 free_msg:
9931 nlmsg_free(msg);
9932 return err;
9933}
9934
5e760230
JB		 9935static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9936{
9937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9938 struct cfg80211_beacon_registration *reg, *nreg;
9939 int rv;
5e760230
JB		 9940
9941 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9942 return -EOPNOTSUPP;
9943
37c73b5f
BG		 9944 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9945 if (!nreg)
9946 return -ENOMEM;
9947
9948 /* First, check if already registered. */
9949 spin_lock_bh(&rdev->beacon_registrations_lock);
9950 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9951 if (reg->nlportid == info->snd_portid) {
9952 rv = -EALREADY;
9953 goto out_err;
9954 }
9955 }
9956 /* Add it to the list */
9957 nreg->nlportid = info->snd_portid;
9958 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9959
37c73b5f 9960 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9961
9962 return 0;
37c73b5f
BG		 9963out_err:
9964 spin_unlock_bh(&rdev->beacon_registrations_lock);
9965 kfree(nreg);
9966 return rv;
5e760230
JB		 9967}
9968
98104fde
JB		 9969static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9970{
9971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9972 struct wireless_dev *wdev = info->user_ptr[1];
9973 int err;
9974
9975 if (!rdev->ops->start_p2p_device)
9976 return -EOPNOTSUPP;
9977
9978 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9979 return -EOPNOTSUPP;
9980
9981 if (wdev->p2p_started)
9982 return 0;
9983
b6a55015
LC		 9984 if (rfkill_blocked(rdev->rfkill))
9985 return -ERFKILL;
98104fde 9986
eeb126e9 9987 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9988 if (err)
9989 return err;
9990
9991 wdev->p2p_started = true;
98104fde 9992 rdev->opencount++;
98104fde
JB		 9993
9994 return 0;
9995}
9996
9997static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9998{
9999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10000 struct wireless_dev *wdev = info->user_ptr[1];
10001
10002 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10003 return -EOPNOTSUPP;
10004
10005 if (!rdev->ops->stop_p2p_device)
10006 return -EOPNOTSUPP;
10007
f9f47529 10008 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10009
10010 return 0;
10011}
10012
3713b4e3
JB		 10013static int nl80211_get_protocol_features(struct sk_buff *skb,
10014 struct genl_info *info)
10015{
10016 void *hdr;
10017 struct sk_buff *msg;
10018
10019 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10020 if (!msg)
10021 return -ENOMEM;
10022
10023 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10024 NL80211_CMD_GET_PROTOCOL_FEATURES);
10025 if (!hdr)
10026 goto nla_put_failure;
10027
10028 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10029 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10030 goto nla_put_failure;
10031
10032 genlmsg_end(msg, hdr);
10033 return genlmsg_reply(msg, info);
10034
10035 nla_put_failure:
10036 kfree_skb(msg);
10037 return -ENOBUFS;
10038}
10039
355199e0
JM		 10040static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10041{
10042 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10043 struct cfg80211_update_ft_ies_params ft_params;
10044 struct net_device *dev = info->user_ptr[1];
10045
10046 if (!rdev->ops->update_ft_ies)
10047 return -EOPNOTSUPP;
10048
10049 if (!info->attrs[NL80211_ATTR_MDID] ||
10050 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10051 return -EINVAL;
10052
10053 memset(&ft_params, 0, sizeof(ft_params));
10054 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10055 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10056 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10057
10058 return rdev_update_ft_ies(rdev, dev, &ft_params);
10059}
10060
5de17984
AS		 10061static int nl80211_crit_protocol_start(struct sk_buff *skb,
10062 struct genl_info *info)
10063{
10064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10065 struct wireless_dev *wdev = info->user_ptr[1];
10066 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10067 u16 duration;
10068 int ret;
10069
10070 if (!rdev->ops->crit_proto_start)
10071 return -EOPNOTSUPP;
10072
10073 if (WARN_ON(!rdev->ops->crit_proto_stop))
10074 return -EINVAL;
10075
10076 if (rdev->crit_proto_nlportid)
10077 return -EBUSY;
10078
10079 /* determine protocol if provided */
10080 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10081 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10082
10083 if (proto >= NUM_NL80211_CRIT_PROTO)
10084 return -EINVAL;
10085
10086 /* timeout must be provided */
10087 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10088 return -EINVAL;
10089
10090 duration =
10091 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10092
10093 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10094 return -ERANGE;
10095
10096 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10097 if (!ret)
10098 rdev->crit_proto_nlportid = info->snd_portid;
10099
10100 return ret;
10101}
10102
10103static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10104 struct genl_info *info)
10105{
10106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10107 struct wireless_dev *wdev = info->user_ptr[1];
10108
10109 if (!rdev->ops->crit_proto_stop)
10110 return -EOPNOTSUPP;
10111
10112 if (rdev->crit_proto_nlportid) {
10113 rdev->crit_proto_nlportid = 0;
10114 rdev_crit_proto_stop(rdev, wdev);
10115 }
10116 return 0;
10117}
10118
ad7e718c
JB		 10119static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10120{
10121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10122 struct wireless_dev *wdev =
10123 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10124 int i, err;
10125 u32 vid, subcmd;
10126
10127 if (!rdev->wiphy.vendor_commands)
10128 return -EOPNOTSUPP;
10129
10130 if (IS_ERR(wdev)) {
10131 err = PTR_ERR(wdev);
10132 if (err != -EINVAL)
10133 return err;
10134 wdev = NULL;
10135 } else if (wdev->wiphy != &rdev->wiphy) {
10136 return -EINVAL;
10137 }
10138
10139 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10140 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10141 return -EINVAL;
10142
10143 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10144 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10145 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10146 const struct wiphy_vendor_command *vcmd;
10147 void *data = NULL;
10148 int len = 0;
10149
10150 vcmd = &rdev->wiphy.vendor_commands[i];
10151
10152 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10153 continue;
10154
10155 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10156 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10157 if (!wdev)
10158 return -EINVAL;
10159 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10160 !wdev->netdev)
10161 return -EINVAL;
10162
10163 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10164 if (wdev->netdev &&
10165 !netif_running(wdev->netdev))
10166 return -ENETDOWN;
10167 if (!wdev->netdev && !wdev->p2p_started)
10168 return -ENETDOWN;
10169 }
7bdbe400
JB		 10170
10171 if (!vcmd->doit)
10172 return -EOPNOTSUPP;
ad7e718c
JB		 10173 } else {
10174 wdev = NULL;
10175 }
10176
10177 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10178 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10179 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10180 }
10181
10182 rdev->cur_cmd_info = info;
10183 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10184 data, len);
10185 rdev->cur_cmd_info = NULL;
10186 return err;
10187 }
10188
10189 return -EOPNOTSUPP;
10190}
10191
7bdbe400
JB		 10192static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10193 struct netlink_callback *cb,
10194 struct cfg80211_registered_device **rdev,
10195 struct wireless_dev **wdev)
10196{
10197 u32 vid, subcmd;
10198 unsigned int i;
10199 int vcmd_idx = -1;
10200 int err;
10201 void *data = NULL;
10202 unsigned int data_len = 0;
10203
10204 rtnl_lock();
10205
10206 if (cb->args[0]) {
10207 /* subtract the 1 again here */
10208 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10209 struct wireless_dev *tmp;
10210
10211 if (!wiphy) {
10212 err = -ENODEV;
10213 goto out_unlock;
10214 }
10215 *rdev = wiphy_to_rdev(wiphy);
10216 *wdev = NULL;
10217
10218 if (cb->args[1]) {
10219 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10220 if (tmp->identifier == cb->args[1] - 1) {
10221 *wdev = tmp;
10222 break;
10223 }
10224 }
10225 }
10226
10227 /* keep rtnl locked in successful case */
10228 return 0;
10229 }
10230
10231 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10232 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10233 nl80211_policy);
10234 if (err)
10235 goto out_unlock;
10236
10237 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10238 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10239 err = -EINVAL;
10240 goto out_unlock;
10241 }
10242
10243 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10244 nl80211_fam.attrbuf);
10245 if (IS_ERR(*wdev))
10246 *wdev = NULL;
10247
10248 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10249 nl80211_fam.attrbuf);
10250 if (IS_ERR(*rdev)) {
10251 err = PTR_ERR(*rdev);
10252 goto out_unlock;
10253 }
10254
10255 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10256 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10257
10258 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10259 const struct wiphy_vendor_command *vcmd;
10260
10261 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10262
10263 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10264 continue;
10265
10266 if (!vcmd->dumpit) {
10267 err = -EOPNOTSUPP;
10268 goto out_unlock;
10269 }
10270
10271 vcmd_idx = i;
10272 break;
10273 }
10274
10275 if (vcmd_idx < 0) {
10276 err = -EOPNOTSUPP;
10277 goto out_unlock;
10278 }
10279
10280 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10281 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10282 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10283 }
10284
10285 /* 0 is the first index - add 1 to parse only once */
10286 cb->args[0] = (*rdev)->wiphy_idx + 1;
10287 /* add 1 to know if it was NULL */
10288 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10289 cb->args[2] = vcmd_idx;
10290 cb->args[3] = (unsigned long)data;
10291 cb->args[4] = data_len;
10292
10293 /* keep rtnl locked in successful case */
10294 return 0;
10295 out_unlock:
10296 rtnl_unlock();
10297 return err;
10298}
10299
10300static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10301 struct netlink_callback *cb)
10302{
10303 struct cfg80211_registered_device *rdev;
10304 struct wireless_dev *wdev;
10305 unsigned int vcmd_idx;
10306 const struct wiphy_vendor_command *vcmd;
10307 void *data;
10308 int data_len;
10309 int err;
10310 struct nlattr *vendor_data;
10311
10312 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10313 if (err)
10314 return err;
10315
10316 vcmd_idx = cb->args[2];
10317 data = (void *)cb->args[3];
10318 data_len = cb->args[4];
10319 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10320
10321 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10322 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10323 if (!wdev)
10324 return -EINVAL;
10325 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10326 !wdev->netdev)
10327 return -EINVAL;
10328
10329 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10330 if (wdev->netdev &&
10331 !netif_running(wdev->netdev))
10332 return -ENETDOWN;
10333 if (!wdev->netdev && !wdev->p2p_started)
10334 return -ENETDOWN;
10335 }
10336 }
10337
10338 while (1) {
10339 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10340 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10341 NL80211_CMD_VENDOR);
10342 if (!hdr)
10343 break;
10344
10345 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10346 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10347 wdev_id(wdev)))) {
10348 genlmsg_cancel(skb, hdr);
10349 break;
10350 }
10351
10352 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10353 if (!vendor_data) {
10354 genlmsg_cancel(skb, hdr);
10355 break;
10356 }
10357
10358 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10359 (unsigned long *)&cb->args[5]);
10360 nla_nest_end(skb, vendor_data);
10361
10362 if (err == -ENOBUFS || err == -ENOENT) {
10363 genlmsg_cancel(skb, hdr);
10364 break;
10365 } else if (err) {
10366 genlmsg_cancel(skb, hdr);
10367 goto out;
10368 }
10369
10370 genlmsg_end(skb, hdr);
10371 }
10372
10373 err = skb->len;
10374 out:
10375 rtnl_unlock();
10376 return err;
10377}
10378
ad7e718c
JB		 10379struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10380 enum nl80211_commands cmd,
10381 enum nl80211_attrs attr,
10382 int approxlen)
10383{
f26cbf40 10384 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10385
10386 if (WARN_ON(!rdev->cur_cmd_info))
10387 return NULL;
10388
6c09e791 10389 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10390 rdev->cur_cmd_info->snd_portid,
10391 rdev->cur_cmd_info->snd_seq,
567ffc35 10392 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10393}
10394EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10395
10396int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10397{
10398 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10399 void *hdr = ((void **)skb->cb)[1];
10400 struct nlattr *data = ((void **)skb->cb)[2];
10401
bd8c78e7
JB		 10402 /* clear CB data for netlink core to own from now on */
10403 memset(skb->cb, 0, sizeof(skb->cb));
10404
ad7e718c
JB		 10405 if (WARN_ON(!rdev->cur_cmd_info)) {
10406 kfree_skb(skb);
10407 return -EINVAL;
10408 }
10409
10410 nla_nest_end(skb, data);
10411 genlmsg_end(skb, hdr);
10412 return genlmsg_reply(skb, rdev->cur_cmd_info);
10413}
10414EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10415
10416
fa9ffc74
KP		 10417static int nl80211_set_qos_map(struct sk_buff *skb,
10418 struct genl_info *info)
10419{
10420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10421 struct cfg80211_qos_map *qos_map = NULL;
10422 struct net_device *dev = info->user_ptr[1];
10423 u8 *pos, len, num_des, des_len, des;
10424 int ret;
10425
10426 if (!rdev->ops->set_qos_map)
10427 return -EOPNOTSUPP;
10428
10429 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10430 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10431 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10432
10433 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10434 len > IEEE80211_QOS_MAP_LEN_MAX)
10435 return -EINVAL;
10436
10437 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10438 if (!qos_map)
10439 return -ENOMEM;
10440
10441 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10442 if (num_des) {
10443 des_len = num_des *
10444 sizeof(struct cfg80211_dscp_exception);
10445 memcpy(qos_map->dscp_exception, pos, des_len);
10446 qos_map->num_des = num_des;
10447 for (des = 0; des < num_des; des++) {
10448 if (qos_map->dscp_exception[des].up > 7) {
10449 kfree(qos_map);
10450 return -EINVAL;
10451 }
10452 }
10453 pos += des_len;
10454 }
10455 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10456 }
10457
10458 wdev_lock(dev->ieee80211_ptr);
10459 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10460 if (!ret)
10461 ret = rdev_set_qos_map(rdev, dev, qos_map);
10462 wdev_unlock(dev->ieee80211_ptr);
10463
10464 kfree(qos_map);
10465 return ret;
10466}
10467
960d01ac
JB		 10468static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10469{
10470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10471 struct net_device *dev = info->user_ptr[1];
10472 struct wireless_dev *wdev = dev->ieee80211_ptr;
10473 const u8 *peer;
10474 u8 tsid, up;
10475 u16 admitted_time = 0;
10476 int err;
10477
723e73ac 10478 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10479 return -EOPNOTSUPP;
10480
10481 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10482 !info->attrs[NL80211_ATTR_USER_PRIO])
10483 return -EINVAL;
10484
10485 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10486 if (tsid >= IEEE80211_NUM_TIDS)
10487 return -EINVAL;
10488
10489 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10490 if (up >= IEEE80211_NUM_UPS)
10491 return -EINVAL;
10492
10493 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10494 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10495 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10496 * need more attributes for that (e.g. BA session requirement);
10497 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10498 */
10499 return -EINVAL;
10500 }
10501
10502 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10503
10504 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10505 admitted_time =
10506 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10507 if (!admitted_time)
10508 return -EINVAL;
10509 }
10510
10511 wdev_lock(wdev);
10512 switch (wdev->iftype) {
10513 case NL80211_IFTYPE_STATION:
10514 case NL80211_IFTYPE_P2P_CLIENT:
10515 if (wdev->current_bss)
10516 break;
10517 err = -ENOTCONN;
10518 goto out;
10519 default:
10520 err = -EOPNOTSUPP;
10521 goto out;
10522 }
10523
10524 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10525
10526 out:
10527 wdev_unlock(wdev);
10528 return err;
10529}
10530
10531static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10532{
10533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10534 struct net_device *dev = info->user_ptr[1];
10535 struct wireless_dev *wdev = dev->ieee80211_ptr;
10536 const u8 *peer;
10537 u8 tsid;
10538 int err;
10539
10540 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10541 return -EINVAL;
10542
10543 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10544 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10545
10546 wdev_lock(wdev);
10547 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10548 wdev_unlock(wdev);
10549
10550 return err;
10551}
10552
1057d35e
AN		 10553static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10554 struct genl_info *info)
10555{
10556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10557 struct net_device *dev = info->user_ptr[1];
10558 struct wireless_dev *wdev = dev->ieee80211_ptr;
10559 struct cfg80211_chan_def chandef = {};
10560 const u8 *addr;
10561 u8 oper_class;
10562 int err;
10563
10564 if (!rdev->ops->tdls_channel_switch ||
10565 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10566 return -EOPNOTSUPP;
10567
10568 switch (dev->ieee80211_ptr->iftype) {
10569 case NL80211_IFTYPE_STATION:
10570 case NL80211_IFTYPE_P2P_CLIENT:
10571 break;
10572 default:
10573 return -EOPNOTSUPP;
10574 }
10575
10576 if (!info->attrs[NL80211_ATTR_MAC] ||
10577 !info->attrs[NL80211_ATTR_OPER_CLASS])
10578 return -EINVAL;
10579
10580 err = nl80211_parse_chandef(rdev, info, &chandef);
10581 if (err)
10582 return err;
10583
10584 /*
10585 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10586 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10587 * specification is not defined for them.
10588 */
10589 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10590 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10591 chandef.width != NL80211_CHAN_WIDTH_20)
10592 return -EINVAL;
10593
10594 /* we will be active on the TDLS link */
923b352f
AN		 10595 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10596 wdev->iftype))
1057d35e
AN		 10597 return -EINVAL;
10598
10599 /* don't allow switching to DFS channels */
10600 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10601 return -EINVAL;
10602
10603 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10604 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10605
10606 wdev_lock(wdev);
10607 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10608 wdev_unlock(wdev);
10609
10610 return err;
10611}
10612
10613static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10614 struct genl_info *info)
10615{
10616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10617 struct net_device *dev = info->user_ptr[1];
10618 struct wireless_dev *wdev = dev->ieee80211_ptr;
10619 const u8 *addr;
10620
10621 if (!rdev->ops->tdls_channel_switch ||
10622 !rdev->ops->tdls_cancel_channel_switch ||
10623 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10624 return -EOPNOTSUPP;
10625
10626 switch (dev->ieee80211_ptr->iftype) {
10627 case NL80211_IFTYPE_STATION:
10628 case NL80211_IFTYPE_P2P_CLIENT:
10629 break;
10630 default:
10631 return -EOPNOTSUPP;
10632 }
10633
10634 if (!info->attrs[NL80211_ATTR_MAC])
10635 return -EINVAL;
10636
10637 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10638
10639 wdev_lock(wdev);
10640 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10641 wdev_unlock(wdev);
10642
10643 return 0;
10644}
10645
4c476991
JB		 10646#define NL80211_FLAG_NEED_WIPHY 0x01
10647#define NL80211_FLAG_NEED_NETDEV 0x02
10648#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10649#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10650#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10651 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10652#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10653/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10654#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10655 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10656#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10657
f84f771d 10658static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10659 struct genl_info *info)
10660{
10661 struct cfg80211_registered_device *rdev;
89a54e48 10662 struct wireless_dev *wdev;
4c476991 10663 struct net_device *dev;
4c476991
JB		 10664 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10665
10666 if (rtnl)
10667 rtnl_lock();
10668
10669 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10670 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10671 if (IS_ERR(rdev)) {
10672 if (rtnl)
10673 rtnl_unlock();
10674 return PTR_ERR(rdev);
10675 }
10676 info->user_ptr[0] = rdev;
1bf614ef
JB		 10677 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10678 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10679 ASSERT_RTNL();
10680
89a54e48
JB		 10681 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10682 info->attrs);
10683 if (IS_ERR(wdev)) {
4c476991
JB		 10684 if (rtnl)
10685 rtnl_unlock();
89a54e48 10686 return PTR_ERR(wdev);
4c476991 10687 }
89a54e48 10688
89a54e48 10689 dev = wdev->netdev;
f26cbf40 10690 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10691
1bf614ef
JB		 10692 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10693 if (!dev) {
1bf614ef
JB		 10694 if (rtnl)
10695 rtnl_unlock();
10696 return -EINVAL;
10697 }
10698
10699 info->user_ptr[1] = dev;
10700 } else {
10701 info->user_ptr[1] = wdev;
41265714 10702 }
1bf614ef
JB		 10703
10704 if (dev) {
10705 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10706 !netif_running(dev)) {
1bf614ef
JB		 10707 if (rtnl)
10708 rtnl_unlock();
10709 return -ENETDOWN;
10710 }
10711
10712 dev_hold(dev);
98104fde
JB		 10713 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10714 if (!wdev->p2p_started) {
98104fde
JB		 10715 if (rtnl)
10716 rtnl_unlock();
10717 return -ENETDOWN;
10718 }
41265714 10719 }
89a54e48 10720
4c476991 10721 info->user_ptr[0] = rdev;
4c476991
JB		 10722 }
10723
10724 return 0;
10725}
10726
f84f771d 10727static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10728 struct genl_info *info)
10729{
1bf614ef
JB		 10730 if (info->user_ptr[1]) {
10731 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10732 struct wireless_dev *wdev = info->user_ptr[1];
10733
10734 if (wdev->netdev)
10735 dev_put(wdev->netdev);
10736 } else {
10737 dev_put(info->user_ptr[1]);
10738 }
10739 }
5393b917 10740
4c476991
JB		 10741 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10742 rtnl_unlock();
5393b917
JB		 10743
10744 /* If needed, clear the netlink message payload from the SKB
10745 * as it might contain key data that shouldn't stick around on
10746 * the heap after the SKB is freed. The netlink message header
10747 * is still needed for further processing, so leave it intact.
10748 */
10749 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10750 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10751
10752 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10753 }
4c476991
JB		 10754}
10755
4534de83 10756static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10757 {
10758 .cmd = NL80211_CMD_GET_WIPHY,
10759 .doit = nl80211_get_wiphy,
10760 .dumpit = nl80211_dump_wiphy,
86e8cf98 10761 .done = nl80211_dump_wiphy_done,
55682965
JB		 10762 .policy = nl80211_policy,
10763 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10764 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10765 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10766 },
10767 {
10768 .cmd = NL80211_CMD_SET_WIPHY,
10769 .doit = nl80211_set_wiphy,
10770 .policy = nl80211_policy,
10771 .flags = GENL_ADMIN_PERM,
4c476991 10772 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10773 },
10774 {
10775 .cmd = NL80211_CMD_GET_INTERFACE,
10776 .doit = nl80211_get_interface,
10777 .dumpit = nl80211_dump_interface,
10778 .policy = nl80211_policy,
10779 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10780 .internal_flags = NL80211_FLAG_NEED_WDEV |
10781 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10782 },
10783 {
10784 .cmd = NL80211_CMD_SET_INTERFACE,
10785 .doit = nl80211_set_interface,
10786 .policy = nl80211_policy,
10787 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10788 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10789 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10790 },
10791 {
10792 .cmd = NL80211_CMD_NEW_INTERFACE,
10793 .doit = nl80211_new_interface,
10794 .policy = nl80211_policy,
10795 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10796 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10797 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10798 },
10799 {
10800 .cmd = NL80211_CMD_DEL_INTERFACE,
10801 .doit = nl80211_del_interface,
10802 .policy = nl80211_policy,
41ade00f 10803 .flags = GENL_ADMIN_PERM,
84efbb84 10804 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10805 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10806 },
10807 {
10808 .cmd = NL80211_CMD_GET_KEY,
10809 .doit = nl80211_get_key,
10810 .policy = nl80211_policy,
10811 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10812 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10813 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10814 },
10815 {
10816 .cmd = NL80211_CMD_SET_KEY,
10817 .doit = nl80211_set_key,
10818 .policy = nl80211_policy,
10819 .flags = GENL_ADMIN_PERM,
41265714 10820 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10821 NL80211_FLAG_NEED_RTNL |
10822 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10823 },
10824 {
10825 .cmd = NL80211_CMD_NEW_KEY,
10826 .doit = nl80211_new_key,
10827 .policy = nl80211_policy,
10828 .flags = GENL_ADMIN_PERM,
41265714 10829 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10830 NL80211_FLAG_NEED_RTNL |
10831 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10832 },
10833 {
10834 .cmd = NL80211_CMD_DEL_KEY,
10835 .doit = nl80211_del_key,
10836 .policy = nl80211_policy,
55682965 10837 .flags = GENL_ADMIN_PERM,
41265714 10838 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10839 NL80211_FLAG_NEED_RTNL,
55682965 10840 },
ed1b6cc7
JB		 10841 {
10842 .cmd = NL80211_CMD_SET_BEACON,
10843 .policy = nl80211_policy,
10844 .flags = GENL_ADMIN_PERM,
8860020e 10845 .doit = nl80211_set_beacon,
2b5f8b0b 10846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10847 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10848 },
10849 {
8860020e 10850 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10851 .policy = nl80211_policy,
10852 .flags = GENL_ADMIN_PERM,
8860020e 10853 .doit = nl80211_start_ap,
2b5f8b0b 10854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10855 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10856 },
10857 {
8860020e 10858 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10859 .policy = nl80211_policy,
10860 .flags = GENL_ADMIN_PERM,
8860020e 10861 .doit = nl80211_stop_ap,
2b5f8b0b 10862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10863 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10864 },
5727ef1b
JB		 10865 {
10866 .cmd = NL80211_CMD_GET_STATION,
10867 .doit = nl80211_get_station,
2ec600d6 10868 .dumpit = nl80211_dump_station,
5727ef1b 10869 .policy = nl80211_policy,
4c476991
JB		 10870 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10871 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10872 },
10873 {
10874 .cmd = NL80211_CMD_SET_STATION,
10875 .doit = nl80211_set_station,
10876 .policy = nl80211_policy,
10877 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10879 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10880 },
10881 {
10882 .cmd = NL80211_CMD_NEW_STATION,
10883 .doit = nl80211_new_station,
10884 .policy = nl80211_policy,
10885 .flags = GENL_ADMIN_PERM,
41265714 10886 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10887 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10888 },
10889 {
10890 .cmd = NL80211_CMD_DEL_STATION,
10891 .doit = nl80211_del_station,
10892 .policy = nl80211_policy,
2ec600d6 10893 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10894 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10895 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10896 },
10897 {
10898 .cmd = NL80211_CMD_GET_MPATH,
10899 .doit = nl80211_get_mpath,
10900 .dumpit = nl80211_dump_mpath,
10901 .policy = nl80211_policy,
10902 .flags = GENL_ADMIN_PERM,
41265714 10903 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10904 NL80211_FLAG_NEED_RTNL,
2ec600d6 10905 },
66be7d2b
HR		 10906 {
10907 .cmd = NL80211_CMD_GET_MPP,
10908 .doit = nl80211_get_mpp,
10909 .dumpit = nl80211_dump_mpp,
10910 .policy = nl80211_policy,
10911 .flags = GENL_ADMIN_PERM,
10912 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10913 NL80211_FLAG_NEED_RTNL,
10914 },
2ec600d6
LCC		 10915 {
10916 .cmd = NL80211_CMD_SET_MPATH,
10917 .doit = nl80211_set_mpath,
10918 .policy = nl80211_policy,
10919 .flags = GENL_ADMIN_PERM,
41265714 10920 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10921 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10922 },
10923 {
10924 .cmd = NL80211_CMD_NEW_MPATH,
10925 .doit = nl80211_new_mpath,
10926 .policy = nl80211_policy,
10927 .flags = GENL_ADMIN_PERM,
41265714 10928 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10929 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10930 },
10931 {
10932 .cmd = NL80211_CMD_DEL_MPATH,
10933 .doit = nl80211_del_mpath,
10934 .policy = nl80211_policy,
9f1ba906 10935 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10936 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10937 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10938 },
10939 {
10940 .cmd = NL80211_CMD_SET_BSS,
10941 .doit = nl80211_set_bss,
10942 .policy = nl80211_policy,
b2e1b302 10943 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10945 NL80211_FLAG_NEED_RTNL,
b2e1b302 10946 },
f130347c
LR		 10947 {
10948 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10949 .doit = nl80211_get_reg_do,
10950 .dumpit = nl80211_get_reg_dump,
f130347c 10951 .policy = nl80211_policy,
5fe231e8 10952 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10953 /* can be retrieved by unprivileged users */
10954 },
b6863036 10955#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 10956 {
10957 .cmd = NL80211_CMD_SET_REG,
10958 .doit = nl80211_set_reg,
10959 .policy = nl80211_policy,
10960 .flags = GENL_ADMIN_PERM,
5fe231e8 10961 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 10962 },
b6863036 10963#endif
b2e1b302
LR		 10964 {
10965 .cmd = NL80211_CMD_REQ_SET_REG,
10966 .doit = nl80211_req_set_reg,
10967 .policy = nl80211_policy,
93da9cc1 10968 .flags = GENL_ADMIN_PERM,
10969 },
10970 {
24bdd9f4
JC		 10971 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10972 .doit = nl80211_get_mesh_config,
93da9cc1 10973 .policy = nl80211_policy,
10974 /* can be retrieved by unprivileged users */
2b5f8b0b 10975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10976 NL80211_FLAG_NEED_RTNL,
93da9cc1 10977 },
10978 {
24bdd9f4
JC		 10979 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10980 .doit = nl80211_update_mesh_config,
93da9cc1 10981 .policy = nl80211_policy,
9aed3cc1 10982 .flags = GENL_ADMIN_PERM,
29cbe68c 10983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10984 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10985 },
2a519311
JB		 10986 {
10987 .cmd = NL80211_CMD_TRIGGER_SCAN,
10988 .doit = nl80211_trigger_scan,
10989 .policy = nl80211_policy,
10990 .flags = GENL_ADMIN_PERM,
fd014284 10991 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10992 NL80211_FLAG_NEED_RTNL,
2a519311 10993 },
91d3ab46
VK		 10994 {
10995 .cmd = NL80211_CMD_ABORT_SCAN,
10996 .doit = nl80211_abort_scan,
10997 .policy = nl80211_policy,
10998 .flags = GENL_ADMIN_PERM,
10999 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11000 NL80211_FLAG_NEED_RTNL,
11001 },
2a519311
JB		 11002 {
11003 .cmd = NL80211_CMD_GET_SCAN,
11004 .policy = nl80211_policy,
11005 .dumpit = nl80211_dump_scan,
11006 },
807f8a8c
LC		 11007 {
11008 .cmd = NL80211_CMD_START_SCHED_SCAN,
11009 .doit = nl80211_start_sched_scan,
11010 .policy = nl80211_policy,
11011 .flags = GENL_ADMIN_PERM,
11012 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11013 NL80211_FLAG_NEED_RTNL,
11014 },
11015 {
11016 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11017 .doit = nl80211_stop_sched_scan,
11018 .policy = nl80211_policy,
11019 .flags = GENL_ADMIN_PERM,
11020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11021 NL80211_FLAG_NEED_RTNL,
11022 },
636a5d36
JM		 11023 {
11024 .cmd = NL80211_CMD_AUTHENTICATE,
11025 .doit = nl80211_authenticate,
11026 .policy = nl80211_policy,
11027 .flags = GENL_ADMIN_PERM,
41265714 11028 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11029 NL80211_FLAG_NEED_RTNL |
11030 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11031 },
11032 {
11033 .cmd = NL80211_CMD_ASSOCIATE,
11034 .doit = nl80211_associate,
11035 .policy = nl80211_policy,
11036 .flags = GENL_ADMIN_PERM,
41265714 11037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11038 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11039 },
11040 {
11041 .cmd = NL80211_CMD_DEAUTHENTICATE,
11042 .doit = nl80211_deauthenticate,
11043 .policy = nl80211_policy,
11044 .flags = GENL_ADMIN_PERM,
41265714 11045 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11046 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11047 },
11048 {
11049 .cmd = NL80211_CMD_DISASSOCIATE,
11050 .doit = nl80211_disassociate,
11051 .policy = nl80211_policy,
11052 .flags = GENL_ADMIN_PERM,
41265714 11053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11054 NL80211_FLAG_NEED_RTNL,
636a5d36 11055 },
04a773ad
JB		 11056 {
11057 .cmd = NL80211_CMD_JOIN_IBSS,
11058 .doit = nl80211_join_ibss,
11059 .policy = nl80211_policy,
11060 .flags = GENL_ADMIN_PERM,
41265714 11061 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11062 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11063 },
11064 {
11065 .cmd = NL80211_CMD_LEAVE_IBSS,
11066 .doit = nl80211_leave_ibss,
11067 .policy = nl80211_policy,
11068 .flags = GENL_ADMIN_PERM,
41265714 11069 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11070 NL80211_FLAG_NEED_RTNL,
04a773ad 11071 },
aff89a9b
JB		 11072#ifdef CONFIG_NL80211_TESTMODE
11073 {
11074 .cmd = NL80211_CMD_TESTMODE,
11075 .doit = nl80211_testmode_do,
71063f0e 11076 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 11077 .policy = nl80211_policy,
11078 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11079 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11080 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11081 },
11082#endif
b23aa676
SO		 11083 {
11084 .cmd = NL80211_CMD_CONNECT,
11085 .doit = nl80211_connect,
11086 .policy = nl80211_policy,
11087 .flags = GENL_ADMIN_PERM,
41265714 11088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11089 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11090 },
11091 {
11092 .cmd = NL80211_CMD_DISCONNECT,
11093 .doit = nl80211_disconnect,
11094 .policy = nl80211_policy,
11095 .flags = GENL_ADMIN_PERM,
41265714 11096 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11097 NL80211_FLAG_NEED_RTNL,
b23aa676 11098 },
463d0183
JB		 11099 {
11100 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11101 .doit = nl80211_wiphy_netns,
11102 .policy = nl80211_policy,
11103 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11104 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11105 NL80211_FLAG_NEED_RTNL,
463d0183 11106 },
61fa713c
HS		 11107 {
11108 .cmd = NL80211_CMD_GET_SURVEY,
11109 .policy = nl80211_policy,
11110 .dumpit = nl80211_dump_survey,
11111 },
67fbb16b
SO		 11112 {
11113 .cmd = NL80211_CMD_SET_PMKSA,
11114 .doit = nl80211_setdel_pmksa,
11115 .policy = nl80211_policy,
11116 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11118 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11119 },
11120 {
11121 .cmd = NL80211_CMD_DEL_PMKSA,
11122 .doit = nl80211_setdel_pmksa,
11123 .policy = nl80211_policy,
11124 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11125 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11126 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11127 },
11128 {
11129 .cmd = NL80211_CMD_FLUSH_PMKSA,
11130 .doit = nl80211_flush_pmksa,
11131 .policy = nl80211_policy,
11132 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11133 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11134 NL80211_FLAG_NEED_RTNL,
67fbb16b 11135 },
9588bbd5
JM		 11136 {
11137 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11138 .doit = nl80211_remain_on_channel,
11139 .policy = nl80211_policy,
11140 .flags = GENL_ADMIN_PERM,
71bbc994 11141 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11142 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11143 },
11144 {
11145 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11146 .doit = nl80211_cancel_remain_on_channel,
11147 .policy = nl80211_policy,
11148 .flags = GENL_ADMIN_PERM,
71bbc994 11149 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11150 NL80211_FLAG_NEED_RTNL,
9588bbd5 11151 },
13ae75b1
JM		 11152 {
11153 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11154 .doit = nl80211_set_tx_bitrate_mask,
11155 .policy = nl80211_policy,
11156 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11157 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11158 NL80211_FLAG_NEED_RTNL,
13ae75b1 11159 },
026331c4 11160 {
2e161f78
JB		 11161 .cmd = NL80211_CMD_REGISTER_FRAME,
11162 .doit = nl80211_register_mgmt,
026331c4
JM		 11163 .policy = nl80211_policy,
11164 .flags = GENL_ADMIN_PERM,
71bbc994 11165 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11166 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11167 },
11168 {
2e161f78
JB		 11169 .cmd = NL80211_CMD_FRAME,
11170 .doit = nl80211_tx_mgmt,
026331c4 11171 .policy = nl80211_policy,
f7ca38df 11172 .flags = GENL_ADMIN_PERM,
71bbc994 11173 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11174 NL80211_FLAG_NEED_RTNL,
11175 },
11176 {
11177 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11178 .doit = nl80211_tx_mgmt_cancel_wait,
11179 .policy = nl80211_policy,
026331c4 11180 .flags = GENL_ADMIN_PERM,
71bbc994 11181 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11182 NL80211_FLAG_NEED_RTNL,
026331c4 11183 },
ffb9eb3d
KV		 11184 {
11185 .cmd = NL80211_CMD_SET_POWER_SAVE,
11186 .doit = nl80211_set_power_save,
11187 .policy = nl80211_policy,
11188 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11189 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11190 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11191 },
11192 {
11193 .cmd = NL80211_CMD_GET_POWER_SAVE,
11194 .doit = nl80211_get_power_save,
11195 .policy = nl80211_policy,
11196 /* can be retrieved by unprivileged users */
4c476991
JB		 11197 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11198 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11199 },
d6dc1a38
JO		 11200 {
11201 .cmd = NL80211_CMD_SET_CQM,
11202 .doit = nl80211_set_cqm,
11203 .policy = nl80211_policy,
11204 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11205 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11206 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11207 },
f444de05
JB		 11208 {
11209 .cmd = NL80211_CMD_SET_CHANNEL,
11210 .doit = nl80211_set_channel,
11211 .policy = nl80211_policy,
11212 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11213 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11214 NL80211_FLAG_NEED_RTNL,
f444de05 11215 },
e8347eba
BJ		 11216 {
11217 .cmd = NL80211_CMD_SET_WDS_PEER,
11218 .doit = nl80211_set_wds_peer,
11219 .policy = nl80211_policy,
11220 .flags = GENL_ADMIN_PERM,
43b19952
JB		 11221 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11222 NL80211_FLAG_NEED_RTNL,
e8347eba 11223 },
29cbe68c
JB		 11224 {
11225 .cmd = NL80211_CMD_JOIN_MESH,
11226 .doit = nl80211_join_mesh,
11227 .policy = nl80211_policy,
11228 .flags = GENL_ADMIN_PERM,
11229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11230 NL80211_FLAG_NEED_RTNL,
11231 },
11232 {
11233 .cmd = NL80211_CMD_LEAVE_MESH,
11234 .doit = nl80211_leave_mesh,
11235 .policy = nl80211_policy,
11236 .flags = GENL_ADMIN_PERM,
11237 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11238 NL80211_FLAG_NEED_RTNL,
11239 },
6e0bd6c3
RL		 11240 {
11241 .cmd = NL80211_CMD_JOIN_OCB,
11242 .doit = nl80211_join_ocb,
11243 .policy = nl80211_policy,
11244 .flags = GENL_ADMIN_PERM,
11245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11246 NL80211_FLAG_NEED_RTNL,
11247 },
11248 {
11249 .cmd = NL80211_CMD_LEAVE_OCB,
11250 .doit = nl80211_leave_ocb,
11251 .policy = nl80211_policy,
11252 .flags = GENL_ADMIN_PERM,
11253 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11254 NL80211_FLAG_NEED_RTNL,
11255 },
dfb89c56 11256#ifdef CONFIG_PM
ff1b6e69
JB		 11257 {
11258 .cmd = NL80211_CMD_GET_WOWLAN,
11259 .doit = nl80211_get_wowlan,
11260 .policy = nl80211_policy,
11261 /* can be retrieved by unprivileged users */
11262 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11263 NL80211_FLAG_NEED_RTNL,
11264 },
11265 {
11266 .cmd = NL80211_CMD_SET_WOWLAN,
11267 .doit = nl80211_set_wowlan,
11268 .policy = nl80211_policy,
11269 .flags = GENL_ADMIN_PERM,
11270 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11271 NL80211_FLAG_NEED_RTNL,
11272 },
dfb89c56 11273#endif
e5497d76
JB		 11274 {
11275 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11276 .doit = nl80211_set_rekey_data,
11277 .policy = nl80211_policy,
11278 .flags = GENL_ADMIN_PERM,
11279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11280 NL80211_FLAG_NEED_RTNL |
11281 NL80211_FLAG_CLEAR_SKB,
e5497d76 11282 },
109086ce
AN		 11283 {
11284 .cmd = NL80211_CMD_TDLS_MGMT,
11285 .doit = nl80211_tdls_mgmt,
11286 .policy = nl80211_policy,
11287 .flags = GENL_ADMIN_PERM,
11288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11289 NL80211_FLAG_NEED_RTNL,
11290 },
11291 {
11292 .cmd = NL80211_CMD_TDLS_OPER,
11293 .doit = nl80211_tdls_oper,
11294 .policy = nl80211_policy,
11295 .flags = GENL_ADMIN_PERM,
11296 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11297 NL80211_FLAG_NEED_RTNL,
11298 },
28946da7
JB		 11299 {
11300 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11301 .doit = nl80211_register_unexpected_frame,
11302 .policy = nl80211_policy,
11303 .flags = GENL_ADMIN_PERM,
11304 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11305 NL80211_FLAG_NEED_RTNL,
11306 },
7f6cf311
JB		 11307 {
11308 .cmd = NL80211_CMD_PROBE_CLIENT,
11309 .doit = nl80211_probe_client,
11310 .policy = nl80211_policy,
11311 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11312 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11313 NL80211_FLAG_NEED_RTNL,
11314 },
5e760230
JB		 11315 {
11316 .cmd = NL80211_CMD_REGISTER_BEACONS,
11317 .doit = nl80211_register_beacons,
11318 .policy = nl80211_policy,
11319 .flags = GENL_ADMIN_PERM,
11320 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11321 NL80211_FLAG_NEED_RTNL,
11322 },
1d9d9213
SW		 11323 {
11324 .cmd = NL80211_CMD_SET_NOACK_MAP,
11325 .doit = nl80211_set_noack_map,
11326 .policy = nl80211_policy,
11327 .flags = GENL_ADMIN_PERM,
11328 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11329 NL80211_FLAG_NEED_RTNL,
11330 },
98104fde
JB		 11331 {
11332 .cmd = NL80211_CMD_START_P2P_DEVICE,
11333 .doit = nl80211_start_p2p_device,
11334 .policy = nl80211_policy,
11335 .flags = GENL_ADMIN_PERM,
11336 .internal_flags = NL80211_FLAG_NEED_WDEV |
11337 NL80211_FLAG_NEED_RTNL,
11338 },
11339 {
11340 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11341 .doit = nl80211_stop_p2p_device,
11342 .policy = nl80211_policy,
11343 .flags = GENL_ADMIN_PERM,
11344 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11345 NL80211_FLAG_NEED_RTNL,
11346 },
f4e583c8
AQ		 11347 {
11348 .cmd = NL80211_CMD_SET_MCAST_RATE,
11349 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 11350 .policy = nl80211_policy,
11351 .flags = GENL_ADMIN_PERM,
11352 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11353 NL80211_FLAG_NEED_RTNL,
11354 },
11355 {
11356 .cmd = NL80211_CMD_SET_MAC_ACL,
11357 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 11358 .policy = nl80211_policy,
11359 .flags = GENL_ADMIN_PERM,
11360 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11361 NL80211_FLAG_NEED_RTNL,
11362 },
04f39047
SW		 11363 {
11364 .cmd = NL80211_CMD_RADAR_DETECT,
11365 .doit = nl80211_start_radar_detection,
11366 .policy = nl80211_policy,
11367 .flags = GENL_ADMIN_PERM,
11368 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11369 NL80211_FLAG_NEED_RTNL,
11370 },
3713b4e3
JB		 11371 {
11372 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11373 .doit = nl80211_get_protocol_features,
11374 .policy = nl80211_policy,
11375 },
355199e0
JM		 11376 {
11377 .cmd = NL80211_CMD_UPDATE_FT_IES,
11378 .doit = nl80211_update_ft_ies,
11379 .policy = nl80211_policy,
11380 .flags = GENL_ADMIN_PERM,
11381 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11382 NL80211_FLAG_NEED_RTNL,
11383 },
5de17984
AS		 11384 {
11385 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11386 .doit = nl80211_crit_protocol_start,
11387 .policy = nl80211_policy,
11388 .flags = GENL_ADMIN_PERM,
11389 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11390 NL80211_FLAG_NEED_RTNL,
11391 },
11392 {
11393 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11394 .doit = nl80211_crit_protocol_stop,
11395 .policy = nl80211_policy,
11396 .flags = GENL_ADMIN_PERM,
11397 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11398 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11399 },
11400 {
11401 .cmd = NL80211_CMD_GET_COALESCE,
11402 .doit = nl80211_get_coalesce,
11403 .policy = nl80211_policy,
11404 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11405 NL80211_FLAG_NEED_RTNL,
11406 },
11407 {
11408 .cmd = NL80211_CMD_SET_COALESCE,
11409 .doit = nl80211_set_coalesce,
11410 .policy = nl80211_policy,
11411 .flags = GENL_ADMIN_PERM,
11412 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11413 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11414 },
11415 {
11416 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11417 .doit = nl80211_channel_switch,
11418 .policy = nl80211_policy,
11419 .flags = GENL_ADMIN_PERM,
11420 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11421 NL80211_FLAG_NEED_RTNL,
11422 },
ad7e718c
JB		 11423 {
11424 .cmd = NL80211_CMD_VENDOR,
11425 .doit = nl80211_vendor_cmd,
7bdbe400 11426 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c
JB		 11427 .policy = nl80211_policy,
11428 .flags = GENL_ADMIN_PERM,
11429 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11430 NL80211_FLAG_NEED_RTNL,
11431 },
fa9ffc74
KP		 11432 {
11433 .cmd = NL80211_CMD_SET_QOS_MAP,
11434 .doit = nl80211_set_qos_map,
11435 .policy = nl80211_policy,
11436 .flags = GENL_ADMIN_PERM,
11437 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11438 NL80211_FLAG_NEED_RTNL,
11439 },
960d01ac
JB		 11440 {
11441 .cmd = NL80211_CMD_ADD_TX_TS,
11442 .doit = nl80211_add_tx_ts,
11443 .policy = nl80211_policy,
11444 .flags = GENL_ADMIN_PERM,
11445 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11446 NL80211_FLAG_NEED_RTNL,
11447 },
11448 {
11449 .cmd = NL80211_CMD_DEL_TX_TS,
11450 .doit = nl80211_del_tx_ts,
11451 .policy = nl80211_policy,
11452 .flags = GENL_ADMIN_PERM,
11453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11454 NL80211_FLAG_NEED_RTNL,
11455 },
1057d35e
AN		 11456 {
11457 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11458 .doit = nl80211_tdls_channel_switch,
11459 .policy = nl80211_policy,
11460 .flags = GENL_ADMIN_PERM,
11461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11462 NL80211_FLAG_NEED_RTNL,
11463 },
11464 {
11465 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11466 .doit = nl80211_tdls_cancel_channel_switch,
11467 .policy = nl80211_policy,
11468 .flags = GENL_ADMIN_PERM,
11469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11470 NL80211_FLAG_NEED_RTNL,
11471 },
55682965 11472};
9588bbd5 11473
55682965
JB		 11474/* notification functions */
11475
3bb20556
JB		 11476void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11477 enum nl80211_commands cmd)
55682965
JB		 11478{
11479 struct sk_buff *msg;
86e8cf98 11480 struct nl80211_dump_wiphy_state state = {};
55682965 11481
3bb20556
JB		 11482 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11483 cmd != NL80211_CMD_DEL_WIPHY);
11484
fd2120ca 11485 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11486 if (!msg)
11487 return;
11488
3bb20556 11489 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11490 nlmsg_free(msg);
11491 return;
11492 }
11493
68eb5503 11494 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11495 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11496}
11497
362a415d
JB		 11498static int nl80211_add_scan_req(struct sk_buff *msg,
11499 struct cfg80211_registered_device *rdev)
11500{
11501 struct cfg80211_scan_request *req = rdev->scan_req;
11502 struct nlattr *nest;
11503 int i;
11504
11505 if (WARN_ON(!req))
11506 return 0;
11507
11508 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11509 if (!nest)
11510 goto nla_put_failure;
9360ffd1
DM		 11511 for (i = 0; i < req->n_ssids; i++) {
11512 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11513 goto nla_put_failure;
11514 }
362a415d
JB		 11515 nla_nest_end(msg, nest);
11516
11517 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11518 if (!nest)
11519 goto nla_put_failure;
9360ffd1
DM		 11520 for (i = 0; i < req->n_channels; i++) {
11521 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11522 goto nla_put_failure;
11523 }
362a415d
JB		 11524 nla_nest_end(msg, nest);
11525
9360ffd1
DM		 11526 if (req->ie &&
11527 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11528 goto nla_put_failure;
362a415d 11529
ae917c9f
JB		 11530 if (req->flags &&
11531 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11532 goto nla_put_failure;
ed473771 11533
362a415d
JB		 11534 return 0;
11535 nla_put_failure:
11536 return -ENOBUFS;
11537}
11538
a538e2d5
JB		 11539static int nl80211_send_scan_msg(struct sk_buff *msg,
11540 struct cfg80211_registered_device *rdev,
fd014284 11541 struct wireless_dev *wdev,
15e47304 11542 u32 portid, u32 seq, int flags,
a538e2d5 11543 u32 cmd)
2a519311
JB		 11544{
11545 void *hdr;
11546
15e47304 11547 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11548 if (!hdr)
11549 return -1;
11550
9360ffd1 11551 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11552 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11553 wdev->netdev->ifindex)) ||
11554 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11555 goto nla_put_failure;
2a519311 11556
362a415d
JB		 11557 /* ignore errors and send incomplete event anyway */
11558 nl80211_add_scan_req(msg, rdev);
2a519311 11559
053c095a
JB		 11560 genlmsg_end(msg, hdr);
11561 return 0;
2a519311
JB		 11562
11563 nla_put_failure:
11564 genlmsg_cancel(msg, hdr);
11565 return -EMSGSIZE;
11566}
11567
807f8a8c
LC		 11568static int
11569nl80211_send_sched_scan_msg(struct sk_buff *msg,
11570 struct cfg80211_registered_device *rdev,
11571 struct net_device *netdev,
15e47304 11572 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11573{
11574 void *hdr;
11575
15e47304 11576 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11577 if (!hdr)
11578 return -1;
11579
9360ffd1
DM		 11580 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11581 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11582 goto nla_put_failure;
807f8a8c 11583
053c095a
JB		 11584 genlmsg_end(msg, hdr);
11585 return 0;
807f8a8c
LC		 11586
11587 nla_put_failure:
11588 genlmsg_cancel(msg, hdr);
11589 return -EMSGSIZE;
11590}
11591
a538e2d5 11592void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11593 struct wireless_dev *wdev)
a538e2d5
JB		 11594{
11595 struct sk_buff *msg;
11596
58050fce 11597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11598 if (!msg)
11599 return;
11600
fd014284 11601 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11602 NL80211_CMD_TRIGGER_SCAN) < 0) {
11603 nlmsg_free(msg);
11604 return;
11605 }
11606
68eb5503 11607 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11608 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11609}
11610
f9d15d16
JB		 11611struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11612 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11613{
11614 struct sk_buff *msg;
11615
fd2120ca 11616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11617 if (!msg)
f9d15d16 11618 return NULL;
2a519311 11619
fd014284 11620 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11621 aborted ? NL80211_CMD_SCAN_ABORTED :
11622 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11623 nlmsg_free(msg);
f9d15d16 11624 return NULL;
2a519311
JB		 11625 }
11626
f9d15d16 11627 return msg;
2a519311
JB		 11628}
11629
f9d15d16
JB		 11630void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11631 struct sk_buff *msg)
2a519311 11632{
2a519311
JB		 11633 if (!msg)
11634 return;
11635
68eb5503 11636 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11637 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11638}
11639
807f8a8c
LC		 11640void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11641 struct net_device *netdev)
11642{
11643 struct sk_buff *msg;
11644
11645 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11646 if (!msg)
11647 return;
11648
11649 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11650 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11651 nlmsg_free(msg);
11652 return;
11653 }
11654
68eb5503 11655 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11656 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11657}
11658
11659void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11660 struct net_device *netdev, u32 cmd)
11661{
11662 struct sk_buff *msg;
11663
58050fce 11664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11665 if (!msg)
11666 return;
11667
11668 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11669 nlmsg_free(msg);
11670 return;
11671 }
11672
68eb5503 11673 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11674 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11675}
11676
b0d7aa59
JD		 11677static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11678 struct regulatory_request *request)
73d54c9e 11679{
73d54c9e 11680 /* Userspace can always count this one always being set */
9360ffd1
DM		 11681 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11682 goto nla_put_failure;
11683
11684 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11685 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11686 NL80211_REGDOM_TYPE_WORLD))
11687 goto nla_put_failure;
11688 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11689 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11690 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11691 goto nla_put_failure;
11692 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11693 request->intersect) {
11694 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11695 NL80211_REGDOM_TYPE_INTERSECTION))
11696 goto nla_put_failure;
11697 } else {
11698 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11699 NL80211_REGDOM_TYPE_COUNTRY) ||
11700 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11701 request->alpha2))
11702 goto nla_put_failure;
11703 }
11704
ad30ca2c
AN		 11705 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11706 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11707
11708 if (wiphy &&
11709 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11710 goto nla_put_failure;
1bdd716c
AN		 11711
11712 if (wiphy &&
11713 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11714 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11715 goto nla_put_failure;
ad30ca2c 11716 }
73d54c9e 11717
b0d7aa59
JD		 11718 return true;
11719
11720nla_put_failure:
11721 return false;
11722}
11723
11724/*
11725 * This can happen on global regulatory changes or device specific settings
11726 * based on custom regulatory domains.
11727 */
11728void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11729 struct regulatory_request *request)
11730{
11731 struct sk_buff *msg;
11732 void *hdr;
11733
11734 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11735 if (!msg)
11736 return;
11737
11738 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11739 if (!hdr) {
11740 nlmsg_free(msg);
11741 return;
11742 }
11743
11744 if (nl80211_reg_change_event_fill(msg, request) == false)
11745 goto nla_put_failure;
11746
3b7b72ee 11747 genlmsg_end(msg, hdr);
73d54c9e 11748
bc43b28c 11749 rcu_read_lock();
68eb5503 11750 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11751 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11752 rcu_read_unlock();
73d54c9e
LR		 11753
11754 return;
11755
11756nla_put_failure:
11757 genlmsg_cancel(msg, hdr);
11758 nlmsg_free(msg);
11759}
11760
6039f6d2
JM		 11761static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11762 struct net_device *netdev,
11763 const u8 *buf, size_t len,
b0b6aa2c
EP		 11764 enum nl80211_commands cmd, gfp_t gfp,
11765 int uapsd_queues)
6039f6d2
JM		 11766{
11767 struct sk_buff *msg;
11768 void *hdr;
11769
e6d6e342 11770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11771 if (!msg)
11772 return;
11773
11774 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11775 if (!hdr) {
11776 nlmsg_free(msg);
11777 return;
11778 }
11779
9360ffd1
DM		 11780 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11781 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11782 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11783 goto nla_put_failure;
6039f6d2 11784
b0b6aa2c
EP		 11785 if (uapsd_queues >= 0) {
11786 struct nlattr *nla_wmm =
11787 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11788 if (!nla_wmm)
11789 goto nla_put_failure;
11790
11791 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11792 uapsd_queues))
11793 goto nla_put_failure;
11794
11795 nla_nest_end(msg, nla_wmm);
11796 }
11797
3b7b72ee 11798 genlmsg_end(msg, hdr);
6039f6d2 11799
68eb5503 11800 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11801 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11802 return;
11803
11804 nla_put_failure:
11805 genlmsg_cancel(msg, hdr);
11806 nlmsg_free(msg);
11807}
11808
11809void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11810 struct net_device *netdev, const u8 *buf,
11811 size_t len, gfp_t gfp)
6039f6d2
JM		 11812{
11813 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11814 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11815}
11816
11817void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11818 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11819 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11820{
e6d6e342 11821 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11822 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11823}
11824
53b46b84 11825void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11826 struct net_device *netdev, const u8 *buf,
11827 size_t len, gfp_t gfp)
6039f6d2
JM		 11828{
11829 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11830 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11831}
11832
53b46b84
JM		 11833void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11834 struct net_device *netdev, const u8 *buf,
e6d6e342 11835 size_t len, gfp_t gfp)
6039f6d2
JM		 11836{
11837 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11838 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11839}
11840
6ff57cf8
JB		 11841void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11842 size_t len)
cf4e594e 11843{
947add36
JB		 11844 struct wireless_dev *wdev = dev->ieee80211_ptr;
11845 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11846 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11847 const struct ieee80211_mgmt *mgmt = (void *)buf;
11848 u32 cmd;
947add36 11849
6ff57cf8
JB		 11850 if (WARN_ON(len < 2))
11851 return;
cf4e594e 11852
6ff57cf8
JB		 11853 if (ieee80211_is_deauth(mgmt->frame_control))
11854 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11855 else
11856 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11857
6ff57cf8 11858 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11859 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11860}
6ff57cf8 11861EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11862
1b06bb40
LR		 11863static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11864 struct net_device *netdev, int cmd,
e6d6e342 11865 const u8 *addr, gfp_t gfp)
1965c853
JM		 11866{
11867 struct sk_buff *msg;
11868 void *hdr;
11869
e6d6e342 11870 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11871 if (!msg)
11872 return;
11873
11874 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11875 if (!hdr) {
11876 nlmsg_free(msg);
11877 return;
11878 }
11879
9360ffd1
DM		 11880 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11881 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11882 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11883 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11884 goto nla_put_failure;
1965c853 11885
3b7b72ee 11886 genlmsg_end(msg, hdr);
1965c853 11887
68eb5503 11888 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11889 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11890 return;
11891
11892 nla_put_failure:
11893 genlmsg_cancel(msg, hdr);
11894 nlmsg_free(msg);
11895}
11896
11897void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11898 struct net_device *netdev, const u8 *addr,
11899 gfp_t gfp)
1965c853
JM		 11900{
11901 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11902 addr, gfp);
1965c853
JM		 11903}
11904
11905void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11906 struct net_device *netdev, const u8 *addr,
11907 gfp_t gfp)
1965c853 11908{
e6d6e342
JB		 11909 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11910 addr, gfp);
1965c853
JM		 11911}
11912
b23aa676
SO		 11913void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11914 struct net_device *netdev, const u8 *bssid,
11915 const u8 *req_ie, size_t req_ie_len,
11916 const u8 *resp_ie, size_t resp_ie_len,
11917 u16 status, gfp_t gfp)
11918{
11919 struct sk_buff *msg;
11920 void *hdr;
11921
58050fce 11922 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11923 if (!msg)
11924 return;
11925
11926 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11927 if (!hdr) {
11928 nlmsg_free(msg);
11929 return;
11930 }
11931
9360ffd1
DM		 11932 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11933 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11934 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11935 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11936 (req_ie &&
11937 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11938 (resp_ie &&
11939 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11940 goto nla_put_failure;
b23aa676 11941
3b7b72ee 11942 genlmsg_end(msg, hdr);
b23aa676 11943
68eb5503 11944 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11945 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11946 return;
11947
11948 nla_put_failure:
11949 genlmsg_cancel(msg, hdr);
11950 nlmsg_free(msg);
11951
11952}
11953
11954void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11955 struct net_device *netdev, const u8 *bssid,
11956 const u8 *req_ie, size_t req_ie_len,
11957 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11958{
11959 struct sk_buff *msg;
11960 void *hdr;
11961
58050fce 11962 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11963 if (!msg)
11964 return;
11965
11966 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11967 if (!hdr) {
11968 nlmsg_free(msg);
11969 return;
11970 }
11971
9360ffd1
DM		 11972 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11973 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11974 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11975 (req_ie &&
11976 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11977 (resp_ie &&
11978 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11979 goto nla_put_failure;
b23aa676 11980
3b7b72ee 11981 genlmsg_end(msg, hdr);
b23aa676 11982
68eb5503 11983 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11984 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11985 return;
11986
11987 nla_put_failure:
11988 genlmsg_cancel(msg, hdr);
11989 nlmsg_free(msg);
11990
11991}
11992
11993void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11994 struct net_device *netdev, u16 reason,
667503dd 11995 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11996{
11997 struct sk_buff *msg;
11998 void *hdr;
11999
58050fce 12000 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12001 if (!msg)
12002 return;
12003
12004 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12005 if (!hdr) {
12006 nlmsg_free(msg);
12007 return;
12008 }
12009
9360ffd1
DM		 12010 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12011 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12012 (from_ap && reason &&
12013 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12014 (from_ap &&
12015 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12016 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12017 goto nla_put_failure;
b23aa676 12018
3b7b72ee 12019 genlmsg_end(msg, hdr);
b23aa676 12020
68eb5503 12021 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12022 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12023 return;
12024
12025 nla_put_failure:
12026 genlmsg_cancel(msg, hdr);
12027 nlmsg_free(msg);
12028
12029}
12030
04a773ad
JB		 12031void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12032 struct net_device *netdev, const u8 *bssid,
12033 gfp_t gfp)
12034{
12035 struct sk_buff *msg;
12036 void *hdr;
12037
fd2120ca 12038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12039 if (!msg)
12040 return;
12041
12042 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12043 if (!hdr) {
12044 nlmsg_free(msg);
12045 return;
12046 }
12047
9360ffd1
DM		 12048 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12049 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12050 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12051 goto nla_put_failure;
04a773ad 12052
3b7b72ee 12053 genlmsg_end(msg, hdr);
04a773ad 12054
68eb5503 12055 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12056 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12057 return;
12058
12059 nla_put_failure:
12060 genlmsg_cancel(msg, hdr);
12061 nlmsg_free(msg);
12062}
12063
947add36
JB		 12064void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12065 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12066{
947add36 12067 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12068 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12069 struct sk_buff *msg;
12070 void *hdr;
12071
947add36
JB		 12072 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12073 return;
12074
12075 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12076
c93b5e71
JC		 12077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12078 if (!msg)
12079 return;
12080
12081 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12082 if (!hdr) {
12083 nlmsg_free(msg);
12084 return;
12085 }
12086
9360ffd1 12087 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12088 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12089 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12090 (ie_len && ie &&
12091 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12092 goto nla_put_failure;
c93b5e71 12093
3b7b72ee 12094 genlmsg_end(msg, hdr);
c93b5e71 12095
68eb5503 12096 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12097 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12098 return;
12099
12100 nla_put_failure:
12101 genlmsg_cancel(msg, hdr);
12102 nlmsg_free(msg);
12103}
947add36 12104EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12105
a3b8b056
JM		 12106void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12107 struct net_device *netdev, const u8 *addr,
12108 enum nl80211_key_type key_type, int key_id,
e6d6e342 12109 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12110{
12111 struct sk_buff *msg;
12112 void *hdr;
12113
e6d6e342 12114 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12115 if (!msg)
12116 return;
12117
12118 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12119 if (!hdr) {
12120 nlmsg_free(msg);
12121 return;
12122 }
12123
9360ffd1
DM		 12124 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12125 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12126 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12127 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12128 (key_id != -1 &&
12129 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12130 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12131 goto nla_put_failure;
a3b8b056 12132
3b7b72ee 12133 genlmsg_end(msg, hdr);
a3b8b056 12134
68eb5503 12135 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12136 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12137 return;
12138
12139 nla_put_failure:
12140 genlmsg_cancel(msg, hdr);
12141 nlmsg_free(msg);
12142}
12143
6bad8766
LR		 12144void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12145 struct ieee80211_channel *channel_before,
12146 struct ieee80211_channel *channel_after)
12147{
12148 struct sk_buff *msg;
12149 void *hdr;
12150 struct nlattr *nl_freq;
12151
fd2120ca 12152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12153 if (!msg)
12154 return;
12155
12156 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12157 if (!hdr) {
12158 nlmsg_free(msg);
12159 return;
12160 }
12161
12162 /*
12163 * Since we are applying the beacon hint to a wiphy we know its
12164 * wiphy_idx is valid
12165 */
9360ffd1
DM		 12166 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12167 goto nla_put_failure;
6bad8766
LR		 12168
12169 /* Before */
12170 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12171 if (!nl_freq)
12172 goto nla_put_failure;
cdc89b97 12173 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12174 goto nla_put_failure;
12175 nla_nest_end(msg, nl_freq);
12176
12177 /* After */
12178 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12179 if (!nl_freq)
12180 goto nla_put_failure;
cdc89b97 12181 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12182 goto nla_put_failure;
12183 nla_nest_end(msg, nl_freq);
12184
3b7b72ee 12185 genlmsg_end(msg, hdr);
6bad8766 12186
463d0183 12187 rcu_read_lock();
68eb5503 12188 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12189 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12190 rcu_read_unlock();
6bad8766
LR		 12191
12192 return;
12193
12194nla_put_failure:
12195 genlmsg_cancel(msg, hdr);
12196 nlmsg_free(msg);
12197}
12198
9588bbd5
JM		 12199static void nl80211_send_remain_on_chan_event(
12200 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12201 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12202 struct ieee80211_channel *chan,
9588bbd5
JM		 12203 unsigned int duration, gfp_t gfp)
12204{
12205 struct sk_buff *msg;
12206 void *hdr;
12207
12208 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12209 if (!msg)
12210 return;
12211
12212 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12213 if (!hdr) {
12214 nlmsg_free(msg);
12215 return;
12216 }
12217
9360ffd1 12218 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12219 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12220 wdev->netdev->ifindex)) ||
00f53350 12221 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 12222 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12223 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12224 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 12225 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12226 goto nla_put_failure;
9588bbd5 12227
9360ffd1
DM		 12228 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12229 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12230 goto nla_put_failure;
9588bbd5 12231
3b7b72ee 12232 genlmsg_end(msg, hdr);
9588bbd5 12233
68eb5503 12234 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12235 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12236 return;
12237
12238 nla_put_failure:
12239 genlmsg_cancel(msg, hdr);
12240 nlmsg_free(msg);
12241}
12242
947add36
JB		 12243void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12244 struct ieee80211_channel *chan,
12245 unsigned int duration, gfp_t gfp)
9588bbd5 12246{
947add36 12247 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12248 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12249
12250 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12251 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12252 rdev, wdev, cookie, chan,
42d97a59 12253 duration, gfp);
9588bbd5 12254}
947add36 12255EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12256
947add36
JB		 12257void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12258 struct ieee80211_channel *chan,
12259 gfp_t gfp)
9588bbd5 12260{
947add36 12261 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12262 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12263
12264 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12265 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12266 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12267}
947add36 12268EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12269
947add36
JB		 12270void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12271 struct station_info *sinfo, gfp_t gfp)
98b62183 12272{
947add36 12273 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12274 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12275 struct sk_buff *msg;
12276
947add36
JB		 12277 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12278
58050fce 12279 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12280 if (!msg)
12281 return;
12282
cf5ead82 12283 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12284 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12285 nlmsg_free(msg);
12286 return;
12287 }
12288
68eb5503 12289 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12290 NL80211_MCGRP_MLME, gfp);
98b62183 12291}
947add36 12292EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12293
cf5ead82
JB		 12294void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12295 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12296{
947add36 12297 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12298 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12299 struct sk_buff *msg;
cf5ead82
JB		 12300 struct station_info empty_sinfo = {};
12301
12302 if (!sinfo)
12303 sinfo = &empty_sinfo;
ec15e68b 12304
947add36
JB		 12305 trace_cfg80211_del_sta(dev, mac_addr);
12306
58050fce 12307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12308 if (!msg)
12309 return;
12310
cf5ead82 12311 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12312 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12313 nlmsg_free(msg);
12314 return;
12315 }
12316
68eb5503 12317 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12318 NL80211_MCGRP_MLME, gfp);
ec15e68b 12319}
cf5ead82 12320EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12321
947add36
JB		 12322void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12323 enum nl80211_connect_failed_reason reason,
12324 gfp_t gfp)
ed44a951 12325{
947add36 12326 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12327 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12328 struct sk_buff *msg;
12329 void *hdr;
12330
12331 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12332 if (!msg)
12333 return;
12334
12335 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12336 if (!hdr) {
12337 nlmsg_free(msg);
12338 return;
12339 }
12340
12341 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12342 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12343 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12344 goto nla_put_failure;
12345
12346 genlmsg_end(msg, hdr);
12347
68eb5503 12348 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12349 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12350 return;
12351
12352 nla_put_failure:
12353 genlmsg_cancel(msg, hdr);
12354 nlmsg_free(msg);
12355}
947add36 12356EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12357
b92ab5d8
JB		 12358static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12359 const u8 *addr, gfp_t gfp)
28946da7
JB		 12360{
12361 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12362 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12363 struct sk_buff *msg;
12364 void *hdr;
15e47304 12365 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12366
15e47304 12367 if (!nlportid)
28946da7
JB		 12368 return false;
12369
12370 msg = nlmsg_new(100, gfp);
12371 if (!msg)
12372 return true;
12373
b92ab5d8 12374 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12375 if (!hdr) {
12376 nlmsg_free(msg);
12377 return true;
12378 }
12379
9360ffd1
DM		 12380 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12381 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12382 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12383 goto nla_put_failure;
28946da7 12384
9c90a9f6 12385 genlmsg_end(msg, hdr);
15e47304 12386 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12387 return true;
12388
12389 nla_put_failure:
12390 genlmsg_cancel(msg, hdr);
12391 nlmsg_free(msg);
12392 return true;
12393}
12394
947add36
JB		 12395bool cfg80211_rx_spurious_frame(struct net_device *dev,
12396 const u8 *addr, gfp_t gfp)
b92ab5d8 12397{
947add36
JB		 12398 struct wireless_dev *wdev = dev->ieee80211_ptr;
12399 bool ret;
12400
12401 trace_cfg80211_rx_spurious_frame(dev, addr);
12402
12403 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12404 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12405 trace_cfg80211_return_bool(false);
12406 return false;
12407 }
12408 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12409 addr, gfp);
12410 trace_cfg80211_return_bool(ret);
12411 return ret;
b92ab5d8 12412}
947add36 12413EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12414
947add36
JB		 12415bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12416 const u8 *addr, gfp_t gfp)
b92ab5d8 12417{
947add36
JB		 12418 struct wireless_dev *wdev = dev->ieee80211_ptr;
12419 bool ret;
12420
12421 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12422
12423 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12424 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12425 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12426 trace_cfg80211_return_bool(false);
12427 return false;
12428 }
12429 ret = __nl80211_unexpected_frame(dev,
12430 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12431 addr, gfp);
12432 trace_cfg80211_return_bool(ret);
12433 return ret;
b92ab5d8 12434}
947add36 12435EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12436
2e161f78 12437int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12438 struct wireless_dev *wdev, u32 nlportid,
804483e9 12439 int freq, int sig_dbm,
19504cf5 12440 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12441{
71bbc994 12442 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12443 struct sk_buff *msg;
12444 void *hdr;
026331c4
JM		 12445
12446 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12447 if (!msg)
12448 return -ENOMEM;
12449
2e161f78 12450 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12451 if (!hdr) {
12452 nlmsg_free(msg);
12453 return -ENOMEM;
12454 }
12455
9360ffd1 12456 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12457 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12458 netdev->ifindex)) ||
a838490b 12459 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12460 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12461 (sig_dbm &&
12462 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12463 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12464 (flags &&
12465 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12466 goto nla_put_failure;
026331c4 12467
3b7b72ee 12468 genlmsg_end(msg, hdr);
026331c4 12469
15e47304 12470 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12471
12472 nla_put_failure:
12473 genlmsg_cancel(msg, hdr);
12474 nlmsg_free(msg);
12475 return -ENOBUFS;
12476}
12477
947add36
JB		 12478void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12479 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12480{
947add36 12481 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12482 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12483 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12484 struct sk_buff *msg;
12485 void *hdr;
12486
947add36
JB		 12487 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12488
026331c4
JM		 12489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12490 if (!msg)
12491 return;
12492
2e161f78 12493 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12494 if (!hdr) {
12495 nlmsg_free(msg);
12496 return;
12497 }
12498
9360ffd1 12499 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12500 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12501 netdev->ifindex)) ||
a838490b 12502 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12503 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12504 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12505 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12506 goto nla_put_failure;
026331c4 12507
3b7b72ee 12508 genlmsg_end(msg, hdr);
026331c4 12509
68eb5503 12510 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12511 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12512 return;
12513
12514 nla_put_failure:
12515 genlmsg_cancel(msg, hdr);
12516 nlmsg_free(msg);
12517}
947add36 12518EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12519
5b97f49d
JB		 12520static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12521 const char *mac, gfp_t gfp)
d6dc1a38 12522{
947add36 12523 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12524 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12525 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12526 void **cb;
947add36 12527
d6dc1a38 12528 if (!msg)
5b97f49d 12529 return NULL;
d6dc1a38 12530
5b97f49d
JB		 12531 cb = (void **)msg->cb;
12532
12533 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12534 if (!cb[0]) {
d6dc1a38 12535 nlmsg_free(msg);
5b97f49d 12536 return NULL;
d6dc1a38
JO		 12537 }
12538
9360ffd1 12539 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12540 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12541 goto nla_put_failure;
d6dc1a38 12542
5b97f49d 12543 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12544 goto nla_put_failure;
12545
5b97f49d
JB		 12546 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12547 if (!cb[1])
9360ffd1 12548 goto nla_put_failure;
d6dc1a38 12549
5b97f49d 12550 cb[2] = rdev;
d6dc1a38 12551
5b97f49d
JB		 12552 return msg;
12553 nla_put_failure:
12554 nlmsg_free(msg);
12555 return NULL;
12556}
12557
12558static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12559{
12560 void **cb = (void **)msg->cb;
12561 struct cfg80211_registered_device *rdev = cb[2];
12562
12563 nla_nest_end(msg, cb[1]);
12564 genlmsg_end(msg, cb[0]);
12565
12566 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12567
68eb5503 12568 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12569 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12570}
12571
12572void cfg80211_cqm_rssi_notify(struct net_device *dev,
12573 enum nl80211_cqm_rssi_threshold_event rssi_event,
12574 gfp_t gfp)
12575{
12576 struct sk_buff *msg;
12577
12578 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12579
98f03342
JB		 12580 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12581 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12582 return;
12583
5b97f49d
JB		 12584 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12585 if (!msg)
12586 return;
12587
12588 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12589 rssi_event))
12590 goto nla_put_failure;
12591
12592 cfg80211_send_cqm(msg, gfp);
12593
d6dc1a38
JO		 12594 return;
12595
12596 nla_put_failure:
d6dc1a38
JO		 12597 nlmsg_free(msg);
12598}
947add36 12599EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12600
5b97f49d
JB		 12601void cfg80211_cqm_txe_notify(struct net_device *dev,
12602 const u8 *peer, u32 num_packets,
12603 u32 rate, u32 intvl, gfp_t gfp)
12604{
12605 struct sk_buff *msg;
12606
12607 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12608 if (!msg)
12609 return;
12610
12611 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12612 goto nla_put_failure;
12613
12614 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12615 goto nla_put_failure;
12616
12617 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12618 goto nla_put_failure;
12619
12620 cfg80211_send_cqm(msg, gfp);
12621 return;
12622
12623 nla_put_failure:
12624 nlmsg_free(msg);
12625}
12626EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12627
12628void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12629 const u8 *peer, u32 num_packets, gfp_t gfp)
12630{
12631 struct sk_buff *msg;
12632
12633 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12634
12635 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12636 if (!msg)
12637 return;
12638
12639 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12640 goto nla_put_failure;
12641
12642 cfg80211_send_cqm(msg, gfp);
12643 return;
12644
12645 nla_put_failure:
12646 nlmsg_free(msg);
12647}
12648EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12649
98f03342
JB		 12650void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12651{
12652 struct sk_buff *msg;
12653
12654 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12655 if (!msg)
12656 return;
12657
12658 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12659 goto nla_put_failure;
12660
12661 cfg80211_send_cqm(msg, gfp);
12662 return;
12663
12664 nla_put_failure:
12665 nlmsg_free(msg);
12666}
12667EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12668
947add36
JB		 12669static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12670 struct net_device *netdev, const u8 *bssid,
12671 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12672{
12673 struct sk_buff *msg;
12674 struct nlattr *rekey_attr;
12675 void *hdr;
12676
58050fce 12677 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12678 if (!msg)
12679 return;
12680
12681 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12682 if (!hdr) {
12683 nlmsg_free(msg);
12684 return;
12685 }
12686
9360ffd1
DM		 12687 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12688 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12689 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12690 goto nla_put_failure;
e5497d76
JB		 12691
12692 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12693 if (!rekey_attr)
12694 goto nla_put_failure;
12695
9360ffd1
DM		 12696 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12697 NL80211_REPLAY_CTR_LEN, replay_ctr))
12698 goto nla_put_failure;
e5497d76
JB		 12699
12700 nla_nest_end(msg, rekey_attr);
12701
3b7b72ee 12702 genlmsg_end(msg, hdr);
e5497d76 12703
68eb5503 12704 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12705 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12706 return;
12707
12708 nla_put_failure:
12709 genlmsg_cancel(msg, hdr);
12710 nlmsg_free(msg);
12711}
12712
947add36
JB		 12713void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12714 const u8 *replay_ctr, gfp_t gfp)
12715{
12716 struct wireless_dev *wdev = dev->ieee80211_ptr;
12717 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12718 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12719
12720 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12721 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12722}
12723EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12724
12725static void
12726nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12727 struct net_device *netdev, int index,
12728 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12729{
12730 struct sk_buff *msg;
12731 struct nlattr *attr;
12732 void *hdr;
12733
58050fce 12734 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12735 if (!msg)
12736 return;
12737
12738 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12739 if (!hdr) {
12740 nlmsg_free(msg);
12741 return;
12742 }
12743
9360ffd1
DM		 12744 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12745 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12746 goto nla_put_failure;
c9df56b4
JM		 12747
12748 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12749 if (!attr)
12750 goto nla_put_failure;
12751
9360ffd1
DM		 12752 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12753 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12754 (preauth &&
12755 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12756 goto nla_put_failure;
c9df56b4
JM		 12757
12758 nla_nest_end(msg, attr);
12759
3b7b72ee 12760 genlmsg_end(msg, hdr);
c9df56b4 12761
68eb5503 12762 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12763 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12764 return;
12765
12766 nla_put_failure:
12767 genlmsg_cancel(msg, hdr);
12768 nlmsg_free(msg);
12769}
12770
947add36
JB		 12771void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12772 const u8 *bssid, bool preauth, gfp_t gfp)
12773{
12774 struct wireless_dev *wdev = dev->ieee80211_ptr;
12775 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12776 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12777
12778 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12779 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12780}
12781EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12782
12783static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12784 struct net_device *netdev,
12785 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12786 gfp_t gfp,
12787 enum nl80211_commands notif,
12788 u8 count)
5314526b
TP		 12789{
12790 struct sk_buff *msg;
12791 void *hdr;
12792
58050fce 12793 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12794 if (!msg)
12795 return;
12796
f8d7552e 12797 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12798 if (!hdr) {
12799 nlmsg_free(msg);
12800 return;
12801 }
12802
683b6d3b
JB		 12803 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12804 goto nla_put_failure;
12805
12806 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12807 goto nla_put_failure;
5314526b 12808
f8d7552e
LC		 12809 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12810 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12811 goto nla_put_failure;
12812
5314526b
TP		 12813 genlmsg_end(msg, hdr);
12814
68eb5503 12815 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12816 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12817 return;
12818
12819 nla_put_failure:
12820 genlmsg_cancel(msg, hdr);
12821 nlmsg_free(msg);
12822}
12823
947add36
JB		 12824void cfg80211_ch_switch_notify(struct net_device *dev,
12825 struct cfg80211_chan_def *chandef)
84f10708 12826{
947add36
JB		 12827 struct wireless_dev *wdev = dev->ieee80211_ptr;
12828 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12829 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12830
e487eaeb 12831 ASSERT_WDEV_LOCK(wdev);
947add36 12832
e487eaeb 12833 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12834
9e0e2961 12835 wdev->chandef = *chandef;
96f55f12 12836 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12837 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12838 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12839}
12840EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12841
f8d7552e
LC		 12842void cfg80211_ch_switch_started_notify(struct net_device *dev,
12843 struct cfg80211_chan_def *chandef,
12844 u8 count)
12845{
12846 struct wireless_dev *wdev = dev->ieee80211_ptr;
12847 struct wiphy *wiphy = wdev->wiphy;
12848 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12849
12850 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12851
12852 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12853 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12854}
12855EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12856
04f39047
SW		 12857void
12858nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12859 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12860 enum nl80211_radar_event event,
12861 struct net_device *netdev, gfp_t gfp)
12862{
12863 struct sk_buff *msg;
12864 void *hdr;
12865
12866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12867 if (!msg)
12868 return;
12869
12870 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12871 if (!hdr) {
12872 nlmsg_free(msg);
12873 return;
12874 }
12875
12876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12877 goto nla_put_failure;
12878
12879 /* NOP and radar events don't need a netdev parameter */
12880 if (netdev) {
12881 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12882
12883 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12884 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12885 goto nla_put_failure;
12886 }
12887
12888 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12889 goto nla_put_failure;
12890
12891 if (nl80211_send_chandef(msg, chandef))
12892 goto nla_put_failure;
12893
9c90a9f6 12894 genlmsg_end(msg, hdr);
04f39047 12895
68eb5503 12896 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12897 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12898 return;
12899
12900 nla_put_failure:
12901 genlmsg_cancel(msg, hdr);
12902 nlmsg_free(msg);
12903}
12904
7f6cf311
JB		 12905void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12906 u64 cookie, bool acked, gfp_t gfp)
12907{
12908 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12909 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12910 struct sk_buff *msg;
12911 void *hdr;
7f6cf311 12912
4ee3e063
BL		 12913 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12914
58050fce 12915 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12916
7f6cf311
JB		 12917 if (!msg)
12918 return;
12919
12920 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12921 if (!hdr) {
12922 nlmsg_free(msg);
12923 return;
12924 }
12925
9360ffd1
DM		 12926 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12927 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12928 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12929 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12930 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12931 goto nla_put_failure;
7f6cf311 12932
9c90a9f6 12933 genlmsg_end(msg, hdr);
7f6cf311 12934
68eb5503 12935 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12936 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12937 return;
12938
12939 nla_put_failure:
12940 genlmsg_cancel(msg, hdr);
12941 nlmsg_free(msg);
12942}
12943EXPORT_SYMBOL(cfg80211_probe_status);
12944
5e760230
JB		 12945void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12946 const u8 *frame, size_t len,
37c73b5f 12947 int freq, int sig_dbm)
5e760230 12948{
f26cbf40 12949 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12950 struct sk_buff *msg;
12951 void *hdr;
37c73b5f 12952 struct cfg80211_beacon_registration *reg;
5e760230 12953
4ee3e063
BL		 12954 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12955
37c73b5f
BG		 12956 spin_lock_bh(&rdev->beacon_registrations_lock);
12957 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12958 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12959 if (!msg) {
12960 spin_unlock_bh(&rdev->beacon_registrations_lock);
12961 return;
12962 }
5e760230 12963
37c73b5f
BG		 12964 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12965 if (!hdr)
12966 goto nla_put_failure;
5e760230 12967
37c73b5f
BG		 12968 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12969 (freq &&
12970 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12971 (sig_dbm &&
12972 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12973 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12974 goto nla_put_failure;
5e760230 12975
37c73b5f 12976 genlmsg_end(msg, hdr);
5e760230 12977
37c73b5f
BG		 12978 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12979 }
12980 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12981 return;
12982
12983 nla_put_failure:
37c73b5f
BG		 12984 spin_unlock_bh(&rdev->beacon_registrations_lock);
12985 if (hdr)
12986 genlmsg_cancel(msg, hdr);
5e760230
JB		 12987 nlmsg_free(msg);
12988}
12989EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12990
cd8f7cb4 12991#ifdef CONFIG_PM
8cd4d456
LC		 12992static int cfg80211_net_detect_results(struct sk_buff *msg,
12993 struct cfg80211_wowlan_wakeup *wakeup)
12994{
12995 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12996 struct nlattr *nl_results, *nl_match, *nl_freqs;
12997 int i, j;
12998
12999 nl_results = nla_nest_start(
13000 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13001 if (!nl_results)
13002 return -EMSGSIZE;
13003
13004 for (i = 0; i < nd->n_matches; i++) {
13005 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13006
13007 nl_match = nla_nest_start(msg, i);
13008 if (!nl_match)
13009 break;
13010
13011 /* The SSID attribute is optional in nl80211, but for
13012 * simplicity reasons it's always present in the
13013 * cfg80211 structure. If a driver can't pass the
13014 * SSID, that needs to be changed. A zero length SSID
13015 * is still a valid SSID (wildcard), so it cannot be
13016 * used for this purpose.
13017 */
13018 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13019 match->ssid.ssid)) {
13020 nla_nest_cancel(msg, nl_match);
13021 goto out;
13022 }
13023
13024 if (match->n_channels) {
13025 nl_freqs = nla_nest_start(
13026 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13027 if (!nl_freqs) {
13028 nla_nest_cancel(msg, nl_match);
13029 goto out;
13030 }
13031
13032 for (j = 0; j < match->n_channels; j++) {
5528fae8 13033 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13034 nla_nest_cancel(msg, nl_freqs);
13035 nla_nest_cancel(msg, nl_match);
13036 goto out;
13037 }
13038 }
13039
13040 nla_nest_end(msg, nl_freqs);
13041 }
13042
13043 nla_nest_end(msg, nl_match);
13044 }
13045
13046out:
13047 nla_nest_end(msg, nl_results);
13048 return 0;
13049}
13050
cd8f7cb4
JB		 13051void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13052 struct cfg80211_wowlan_wakeup *wakeup,
13053 gfp_t gfp)
13054{
f26cbf40 13055 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13056 struct sk_buff *msg;
13057 void *hdr;
9c90a9f6 13058 int size = 200;
cd8f7cb4
JB		 13059
13060 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13061
13062 if (wakeup)
13063 size += wakeup->packet_present_len;
13064
13065 msg = nlmsg_new(size, gfp);
13066 if (!msg)
13067 return;
13068
13069 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13070 if (!hdr)
13071 goto free_msg;
13072
13073 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13074 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13075 goto free_msg;
13076
13077 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13078 wdev->netdev->ifindex))
13079 goto free_msg;
13080
13081 if (wakeup) {
13082 struct nlattr *reasons;
13083
13084 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13085 if (!reasons)
13086 goto free_msg;
cd8f7cb4
JB		 13087
13088 if (wakeup->disconnect &&
13089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13090 goto free_msg;
13091 if (wakeup->magic_pkt &&
13092 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13093 goto free_msg;
13094 if (wakeup->gtk_rekey_failure &&
13095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13096 goto free_msg;
13097 if (wakeup->eap_identity_req &&
13098 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13099 goto free_msg;
13100 if (wakeup->four_way_handshake &&
13101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13102 goto free_msg;
13103 if (wakeup->rfkill_release &&
13104 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13105 goto free_msg;
13106
13107 if (wakeup->pattern_idx >= 0 &&
13108 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13109 wakeup->pattern_idx))
13110 goto free_msg;
13111
ae917c9f
JB		 13112 if (wakeup->tcp_match &&
13113 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13114 goto free_msg;
2a0e047e 13115
ae917c9f
JB		 13116 if (wakeup->tcp_connlost &&
13117 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13118 goto free_msg;
2a0e047e 13119
ae917c9f
JB		 13120 if (wakeup->tcp_nomoretokens &&
13121 nla_put_flag(msg,
13122 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13123 goto free_msg;
2a0e047e 13124
cd8f7cb4
JB		 13125 if (wakeup->packet) {
13126 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13127 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13128
13129 if (!wakeup->packet_80211) {
13130 pkt_attr =
13131 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13132 len_attr =
13133 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13134 }
13135
13136 if (wakeup->packet_len &&
13137 nla_put_u32(msg, len_attr, wakeup->packet_len))
13138 goto free_msg;
13139
13140 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13141 wakeup->packet))
13142 goto free_msg;
13143 }
13144
8cd4d456
LC		 13145 if (wakeup->net_detect &&
13146 cfg80211_net_detect_results(msg, wakeup))
13147 goto free_msg;
13148
cd8f7cb4
JB		 13149 nla_nest_end(msg, reasons);
13150 }
13151
9c90a9f6 13152 genlmsg_end(msg, hdr);
cd8f7cb4 13153
68eb5503 13154 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13155 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13156 return;
13157
13158 free_msg:
13159 nlmsg_free(msg);
13160}
13161EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13162#endif
13163
3475b094
JM		 13164void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13165 enum nl80211_tdls_operation oper,
13166 u16 reason_code, gfp_t gfp)
13167{
13168 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13169 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13170 struct sk_buff *msg;
13171 void *hdr;
3475b094
JM		 13172
13173 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13174 reason_code);
13175
13176 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13177 if (!msg)
13178 return;
13179
13180 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13181 if (!hdr) {
13182 nlmsg_free(msg);
13183 return;
13184 }
13185
13186 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13187 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13188 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13189 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13190 (reason_code > 0 &&
13191 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13192 goto nla_put_failure;
13193
9c90a9f6 13194 genlmsg_end(msg, hdr);
3475b094 13195
68eb5503 13196 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13197 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13198 return;
13199
13200 nla_put_failure:
13201 genlmsg_cancel(msg, hdr);
13202 nlmsg_free(msg);
13203}
13204EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13205
026331c4
JM		 13206static int nl80211_netlink_notify(struct notifier_block * nb,
13207 unsigned long state,
13208 void *_notify)
13209{
13210 struct netlink_notify *notify = _notify;
13211 struct cfg80211_registered_device *rdev;
13212 struct wireless_dev *wdev;
37c73b5f 13213 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 13214
13215 if (state != NETLINK_URELEASE)
13216 return NOTIFY_DONE;
13217
13218 rcu_read_lock();
13219
5e760230 13220 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13221 bool schedule_destroy_work = false;
93a1e86c
JR		 13222 bool schedule_scan_stop = false;
13223 struct cfg80211_sched_scan_request *sched_scan_req =
13224 rcu_dereference(rdev->sched_scan_req);
13225
13226 if (sched_scan_req && notify->portid &&
13227 sched_scan_req->owner_nlportid == notify->portid)
13228 schedule_scan_stop = true;
78f22b6a
JB		 13229
13230 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 13231 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13232
78f22b6a
JB		 13233 if (wdev->owner_nlportid == notify->portid)
13234 schedule_destroy_work = true;
13235 }
13236
37c73b5f
BG		 13237 spin_lock_bh(&rdev->beacon_registrations_lock);
13238 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13239 list) {
13240 if (reg->nlportid == notify->portid) {
13241 list_del(&reg->list);
13242 kfree(reg);
13243 break;
13244 }
13245 }
13246 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13247
13248 if (schedule_destroy_work) {
13249 struct cfg80211_iface_destroy *destroy;
13250
13251 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13252 if (destroy) {
13253 destroy->nlportid = notify->portid;
13254 spin_lock(&rdev->destroy_list_lock);
13255 list_add(&destroy->list, &rdev->destroy_list);
13256 spin_unlock(&rdev->destroy_list_lock);
13257 schedule_work(&rdev->destroy_work);
13258 }
93a1e86c
JR		 13259 } else if (schedule_scan_stop) {
13260 sched_scan_req->owner_nlportid = 0;
13261
13262 if (rdev->ops->sched_scan_stop &&
13263 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13264 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13265 }
5e760230 13266 }
026331c4
JM		 13267
13268 rcu_read_unlock();
13269
05050753
I		 13270 /*
13271 * It is possible that the user space process that is controlling the
13272 * indoor setting disappeared, so notify the regulatory core.
13273 */
13274 regulatory_netlink_notify(notify->portid);
6784c7db 13275 return NOTIFY_OK;
026331c4
JM		 13276}
13277
13278static struct notifier_block nl80211_netlink_notifier = {
13279 .notifier_call = nl80211_netlink_notify,
13280};
13281
355199e0
JM		 13282void cfg80211_ft_event(struct net_device *netdev,
13283 struct cfg80211_ft_event_params *ft_event)
13284{
13285 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13286 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13287 struct sk_buff *msg;
13288 void *hdr;
355199e0
JM		 13289
13290 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13291
13292 if (!ft_event->target_ap)
13293 return;
13294
13295 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13296 if (!msg)
13297 return;
13298
13299 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13300 if (!hdr)
13301 goto out;
355199e0 13302
ae917c9f
JB		 13303 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13304 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13305 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13306 goto out;
355199e0 13307
ae917c9f
JB		 13308 if (ft_event->ies &&
13309 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13310 goto out;
13311 if (ft_event->ric_ies &&
13312 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13313 ft_event->ric_ies))
13314 goto out;
355199e0 13315
9c90a9f6 13316 genlmsg_end(msg, hdr);
355199e0 13317
68eb5503 13318 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13319 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13320 return;
13321 out:
13322 nlmsg_free(msg);
355199e0
JM		 13323}
13324EXPORT_SYMBOL(cfg80211_ft_event);
13325
5de17984
AS		 13326void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13327{
13328 struct cfg80211_registered_device *rdev;
13329 struct sk_buff *msg;
13330 void *hdr;
13331 u32 nlportid;
13332
f26cbf40 13333 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13334 if (!rdev->crit_proto_nlportid)
13335 return;
13336
13337 nlportid = rdev->crit_proto_nlportid;
13338 rdev->crit_proto_nlportid = 0;
13339
13340 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13341 if (!msg)
13342 return;
13343
13344 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13345 if (!hdr)
13346 goto nla_put_failure;
13347
13348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13349 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13350 goto nla_put_failure;
13351
13352 genlmsg_end(msg, hdr);
13353
13354 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13355 return;
13356
13357 nla_put_failure:
13358 if (hdr)
13359 genlmsg_cancel(msg, hdr);
13360 nlmsg_free(msg);
13361
13362}
13363EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13364
348baf0e
JB		 13365void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13366{
13367 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13368 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13369 struct sk_buff *msg;
13370 void *hdr;
13371
13372 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13373 if (!msg)
13374 return;
13375
13376 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13377 if (!hdr)
13378 goto out;
13379
13380 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13381 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13382 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13383 goto out;
13384
13385 genlmsg_end(msg, hdr);
13386
13387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13388 NL80211_MCGRP_MLME, GFP_KERNEL);
13389 return;
13390 out:
13391 nlmsg_free(msg);
13392}
13393
55682965
JB		 13394/* initialisation/exit functions */
13395
13396int nl80211_init(void)
13397{
0d63cbb5 13398 int err;
55682965 13399
2a94fe48
JB		 13400 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13401 nl80211_mcgrps);
55682965
JB		 13402 if (err)
13403 return err;
13404
026331c4
JM		 13405 err = netlink_register_notifier(&nl80211_netlink_notifier);
13406 if (err)
13407 goto err_out;
13408
55682965
JB		 13409 return 0;
13410 err_out:
13411 genl_unregister_family(&nl80211_fam);
13412 return err;
13413}
13414
13415void nl80211_exit(void)
13416{
026331c4 13417 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13418 genl_unregister_family(&nl80211_fam);
13419}
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