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cfg80211: add generic helper to check interface is running
[mirror_ubuntu-artful-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
0c9ca11b 6 * Copyright 2015-2016 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,
50bcd31d 59 NL80211_MCGRP_NAN,
2a94fe48
JB		 60 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
61};
62
63static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 64 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
65 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
66 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
67 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
68 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
50bcd31d 69 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
2a94fe48 70#ifdef CONFIG_NL80211_TESTMODE
71b836ec 71 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 72#endif
73};
74
89a54e48
JB		 75/* returns ERR_PTR values */
76static struct wireless_dev *
77__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 78{
89a54e48
JB		 79 struct cfg80211_registered_device *rdev;
80 struct wireless_dev *result = NULL;
81 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
82 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
83 u64 wdev_id;
84 int wiphy_idx = -1;
85 int ifidx = -1;
55682965 86
5fe231e8 87 ASSERT_RTNL();
55682965 88
89a54e48
JB		 89 if (!have_ifidx && !have_wdev_id)
90 return ERR_PTR(-EINVAL);
55682965 91
89a54e48
JB		 92 if (have_ifidx)
93 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
94 if (have_wdev_id) {
95 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
96 wiphy_idx = wdev_id >> 32;
55682965
JB		 97 }
98
89a54e48
JB		 99 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
100 struct wireless_dev *wdev;
101
102 if (wiphy_net(&rdev->wiphy) != netns)
103 continue;
104
105 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
106 continue;
107
53873f13 108 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 109 if (have_ifidx && wdev->netdev &&
110 wdev->netdev->ifindex == ifidx) {
111 result = wdev;
112 break;
113 }
114 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
115 result = wdev;
116 break;
117 }
118 }
89a54e48
JB		 119
120 if (result)
121 break;
122 }
123
124 if (result)
125 return result;
126 return ERR_PTR(-ENODEV);
55682965
JB		 127}
128
a9455408 129static struct cfg80211_registered_device *
878d9ec7 130__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 131{
7fee4778
JB		 132 struct cfg80211_registered_device *rdev = NULL, *tmp;
133 struct net_device *netdev;
a9455408 134
5fe231e8 135 ASSERT_RTNL();
a9455408 136
878d9ec7 137 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 138 !attrs[NL80211_ATTR_IFINDEX] &&
139 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 140 return ERR_PTR(-EINVAL);
141
878d9ec7 142 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 143 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 144 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 145
89a54e48
JB		 146 if (attrs[NL80211_ATTR_WDEV]) {
147 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
148 struct wireless_dev *wdev;
149 bool found = false;
150
151 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
152 if (tmp) {
153 /* make sure wdev exists */
53873f13 154 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 155 if (wdev->identifier != (u32)wdev_id)
156 continue;
157 found = true;
158 break;
159 }
89a54e48
JB		 160
161 if (!found)
162 tmp = NULL;
163
164 if (rdev && tmp != rdev)
165 return ERR_PTR(-EINVAL);
166 rdev = tmp;
167 }
168 }
169
878d9ec7
JB		 170 if (attrs[NL80211_ATTR_IFINDEX]) {
171 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 172
7f2b8562 173 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 174 if (netdev) {
175 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 176 tmp = wiphy_to_rdev(
177 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 178 else
179 tmp = NULL;
180
7fee4778
JB		 181 /* not wireless device -- return error */
182 if (!tmp)
183 return ERR_PTR(-EINVAL);
184
185 /* mismatch -- return error */
186 if (rdev && tmp != rdev)
187 return ERR_PTR(-EINVAL);
188
189 rdev = tmp;
a9455408 190 }
a9455408 191 }
a9455408 192
4f7eff10
JB		 193 if (!rdev)
194 return ERR_PTR(-ENODEV);
a9455408 195
4f7eff10
JB		 196 if (netns != wiphy_net(&rdev->wiphy))
197 return ERR_PTR(-ENODEV);
198
199 return rdev;
a9455408
JB		 200}
201
202/*
203 * This function returns a pointer to the driver
204 * that the genl_info item that is passed refers to.
a9455408
JB		 205 *
206 * The result of this can be a PTR_ERR and hence must
207 * be checked with IS_ERR() for errors.
208 */
209static struct cfg80211_registered_device *
4f7eff10 210cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 211{
5fe231e8 212 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 213}
214
55682965 215/* policy for the attributes */
8cd4d456 216static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 217 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
218 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 219 .len = 20-1 },
31888487 220 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 221
72bdcf34 222 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 223 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 224 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
225 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
226 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
227
b9a5f8ca
JM		 228 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
229 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
230 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
231 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 232 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 233 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 234
235 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
236 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
237 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 238
e007b857
EP		 239 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
240 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 241
b9454e83 242 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 243 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
244 .len = WLAN_MAX_KEY_LEN },
245 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
246 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
247 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 248 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 249 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 250
251 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
252 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
253 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
255 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
256 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 257 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
258 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
259 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
260 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
261 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 262 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 263 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 264 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 265 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 266 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 267 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 268
b2e1b302
LR		 269 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
270 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
271
9f1ba906
JM		 272 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
273 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
274 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 275 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
276 .len = NL80211_MAX_SUPP_RATES },
50b12f59 277 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 278
24bdd9f4 279 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 280 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 281
6c739419 282 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 283
284 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
285 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
286 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 287 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
288 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 289
290 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
291 .len = IEEE80211_MAX_SSID_LEN },
292 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
293 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 294 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 295 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 296 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 297 [NL80211_ATTR_STA_FLAGS2] = {
298 .len = sizeof(struct nl80211_sta_flag_update),
299 },
3f77316c 300 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 301 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
302 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 303 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
304 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
305 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 306 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 307 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 308 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
309 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 310 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
311 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 312 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 313 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
314 .len = IEEE80211_MAX_DATA_LEN },
315 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 316 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 317 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 318 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 319 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 320 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
321 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 322 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 323 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
324 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 325 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 326 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 327 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 328 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 329 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 330 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 331 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 332 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 333 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 334 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
336 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
337 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 338 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 339 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 340 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 341 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
343 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
344 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 346 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 347 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 348 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
349 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 350 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 351 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
352 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
353 .len = NL80211_HT_CAPABILITY_LEN
354 },
1d9d9213 355 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 356 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 357 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 358 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 359 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 360 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 361 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 362 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 363 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
364 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 365 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
366 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 367 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
368 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 369 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 370 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
371 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
372 .len = NL80211_VHT_CAPABILITY_LEN,
373 },
355199e0
JM		 374 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
375 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
376 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 377 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 378 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
379 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
380 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 381 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
382 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 383 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
384 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 385 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 386 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 387 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
388 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
389 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 390 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
391 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 392 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
393 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 394 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 395 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 396 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 397 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 398 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
399 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
400 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 401 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 402 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 403 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 404 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 405 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 406 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 407 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 408 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 409 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 410 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
411 .len = VHT_MUMIMO_GROUPS_DATA_LEN
412 },
413 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
cb3b7d87
AB		 414 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
415 [NL80211_ATTR_NAN_DUAL] = { .type = NLA_U8 },
a442b761 416 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
55682965
JB		 417};
418
e31b8213 419/* policy for the key attributes */
b54452b0 420static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 421 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 422 [NL80211_KEY_IDX] = { .type = NLA_U8 },
423 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 424 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 425 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
426 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 427 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 428 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
429};
430
431/* policy for the key default flags */
432static const struct nla_policy
433nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
434 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
435 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 436};
437
f83ace3b 438#ifdef CONFIG_PM
ff1b6e69
JB		 439/* policy for WoWLAN attributes */
440static const struct nla_policy
441nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
442 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
444 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
445 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 446 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
447 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
448 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
449 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 450 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 451 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 452};
453
454static const struct nla_policy
455nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
456 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
457 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
458 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
459 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
460 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
461 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
462 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
463 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
464 },
465 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
466 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
467 },
468 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
469 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
470 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69 471};
f83ace3b 472#endif /* CONFIG_PM */
ff1b6e69 473
be29b99a
AK		 474/* policy for coalesce rule attributes */
475static const struct nla_policy
476nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
477 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
478 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
479 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
480};
481
e5497d76
JB		 482/* policy for GTK rekey offload attributes */
483static const struct nla_policy
484nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
485 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
486 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
487 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
488};
489
a1f1c21c
LC		 490static const struct nla_policy
491nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 492 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 493 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 494 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 495};
496
3b06d277
AS		 497static const struct nla_policy
498nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
499 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
500 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
501};
502
38de03d2
AS		 503static const struct nla_policy
504nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
505 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
506 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
507 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
508 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
509 },
510};
511
a442b761
AB		 512/* policy for NAN function attributes */
513static const struct nla_policy
514nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
515 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
516 [NL80211_NAN_FUNC_SERVICE_ID] = { .type = NLA_BINARY,
517 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
518 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
519 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
520 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
521 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
522 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
523 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
524 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
525 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
526 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
527 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
528 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
529 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
530 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
531 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
532 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
533};
534
535/* policy for Service Response Filter attributes */
536static const struct nla_policy
537nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
538 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
539 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
540 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
541 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
542 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
543};
544
97990a06
JB		 545static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
546 struct netlink_callback *cb,
547 struct cfg80211_registered_device **rdev,
548 struct wireless_dev **wdev)
a043897a 549{
97990a06 550 int err;
a043897a 551
97990a06 552 rtnl_lock();
a043897a 553
97990a06
JB		 554 if (!cb->args[0]) {
555 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
556 nl80211_fam.attrbuf, nl80211_fam.maxattr,
557 nl80211_policy);
558 if (err)
559 goto out_unlock;
67748893 560
97990a06
JB		 561 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
562 nl80211_fam.attrbuf);
563 if (IS_ERR(*wdev)) {
564 err = PTR_ERR(*wdev);
565 goto out_unlock;
566 }
f26cbf40 567 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 568 /* 0 is the first index - add 1 to parse only once */
569 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 570 cb->args[1] = (*wdev)->identifier;
571 } else {
c319d50b
JB		 572 /* subtract the 1 again here */
573 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 574 struct wireless_dev *tmp;
67748893 575
97990a06
JB		 576 if (!wiphy) {
577 err = -ENODEV;
578 goto out_unlock;
579 }
f26cbf40 580 *rdev = wiphy_to_rdev(wiphy);
97990a06 581 *wdev = NULL;
67748893 582
53873f13 583 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 584 if (tmp->identifier == cb->args[1]) {
585 *wdev = tmp;
586 break;
587 }
588 }
67748893 589
97990a06
JB		 590 if (!*wdev) {
591 err = -ENODEV;
592 goto out_unlock;
593 }
67748893
JB		 594 }
595
67748893 596 return 0;
97990a06 597 out_unlock:
67748893
JB		 598 rtnl_unlock();
599 return err;
600}
601
97990a06 602static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 603{
67748893
JB		 604 rtnl_unlock();
605}
606
f4a11bb0
JB		 607/* IE validation */
608static bool is_valid_ie_attr(const struct nlattr *attr)
609{
610 const u8 *pos;
611 int len;
612
613 if (!attr)
614 return true;
615
616 pos = nla_data(attr);
617 len = nla_len(attr);
618
619 while (len) {
620 u8 elemlen;
621
622 if (len < 2)
623 return false;
624 len -= 2;
625
626 elemlen = pos[1];
627 if (elemlen > len)
628 return false;
629
630 len -= elemlen;
631 pos += 2 + elemlen;
632 }
633
634 return true;
635}
636
55682965 637/* message building helper */
15e47304 638static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 639 int flags, u8 cmd)
640{
641 /* since there is no private header just add the generic one */
15e47304 642 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 643}
644
5dab3b8a 645static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 646 struct ieee80211_channel *chan,
647 bool large)
5dab3b8a 648{
ea077c1c
RL		 649 /* Some channels must be completely excluded from the
650 * list to protect old user-space tools from breaking
651 */
652 if (!large && chan->flags &
653 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
654 return 0;
655
9360ffd1
DM		 656 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
657 chan->center_freq))
658 goto nla_put_failure;
5dab3b8a 659
9360ffd1
DM		 660 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
661 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
662 goto nla_put_failure;
8fe02e16
LR		 663 if (chan->flags & IEEE80211_CHAN_NO_IR) {
664 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
665 goto nla_put_failure;
666 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
667 goto nla_put_failure;
668 }
cdc89b97
JB		 669 if (chan->flags & IEEE80211_CHAN_RADAR) {
670 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
671 goto nla_put_failure;
672 if (large) {
673 u32 time;
674
675 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
676
677 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
678 chan->dfs_state))
679 goto nla_put_failure;
680 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
681 time))
682 goto nla_put_failure;
089027e5
JD		 683 if (nla_put_u32(msg,
684 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
685 chan->dfs_cac_ms))
686 goto nla_put_failure;
cdc89b97
JB		 687 }
688 }
5dab3b8a 689
fe1abafd
JB		 690 if (large) {
691 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
692 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
693 goto nla_put_failure;
694 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
695 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
696 goto nla_put_failure;
697 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
698 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
699 goto nla_put_failure;
700 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
701 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
702 goto nla_put_failure;
570dbde1
DS		 703 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
704 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
705 goto nla_put_failure;
06f207fc
AN		 706 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
707 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 708 goto nla_put_failure;
ea077c1c
RL		 709 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
710 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
711 goto nla_put_failure;
712 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
713 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
714 goto nla_put_failure;
fe1abafd
JB		 715 }
716
9360ffd1
DM		 717 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
718 DBM_TO_MBM(chan->max_power)))
719 goto nla_put_failure;
5dab3b8a
LR		 720
721 return 0;
722
723 nla_put_failure:
724 return -ENOBUFS;
725}
726
55682965
JB		 727/* netlink command implementations */
728
b9454e83
JB		 729struct key_parse {
730 struct key_params p;
731 int idx;
e31b8213 732 int type;
b9454e83 733 bool def, defmgmt;
dbd2fd65 734 bool def_uni, def_multi;
b9454e83
JB		 735};
736
737static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
738{
739 struct nlattr *tb[NL80211_KEY_MAX + 1];
740 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
741 nl80211_key_policy);
742 if (err)
743 return err;
744
745 k->def = !!tb[NL80211_KEY_DEFAULT];
746 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
747
dbd2fd65
JB		 748 if (k->def) {
749 k->def_uni = true;
750 k->def_multi = true;
751 }
752 if (k->defmgmt)
753 k->def_multi = true;
754
b9454e83
JB		 755 if (tb[NL80211_KEY_IDX])
756 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
757
758 if (tb[NL80211_KEY_DATA]) {
759 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
760 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
761 }
762
763 if (tb[NL80211_KEY_SEQ]) {
764 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
765 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
766 }
767
768 if (tb[NL80211_KEY_CIPHER])
769 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
770
e31b8213
JB		 771 if (tb[NL80211_KEY_TYPE]) {
772 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
773 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
774 return -EINVAL;
775 }
776
dbd2fd65
JB		 777 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
778 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 779
2da8f419
JB		 780 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
781 tb[NL80211_KEY_DEFAULT_TYPES],
782 nl80211_key_default_policy);
dbd2fd65
JB		 783 if (err)
784 return err;
785
786 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
787 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
788 }
789
b9454e83
JB		 790 return 0;
791}
792
793static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
794{
795 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
796 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
797 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
798 }
799
800 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
801 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
802 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
803 }
804
805 if (info->attrs[NL80211_ATTR_KEY_IDX])
806 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
807
808 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
809 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
810
811 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
812 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
813
dbd2fd65
JB		 814 if (k->def) {
815 k->def_uni = true;
816 k->def_multi = true;
817 }
818 if (k->defmgmt)
819 k->def_multi = true;
820
e31b8213
JB		 821 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
822 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
823 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
824 return -EINVAL;
825 }
826
dbd2fd65
JB		 827 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
828 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
829 int err = nla_parse_nested(
830 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
831 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
832 nl80211_key_default_policy);
833 if (err)
834 return err;
835
836 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
837 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
838 }
839
b9454e83
JB		 840 return 0;
841}
842
843static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
844{
845 int err;
846
847 memset(k, 0, sizeof(*k));
848 k->idx = -1;
e31b8213 849 k->type = -1;
b9454e83
JB		 850
851 if (info->attrs[NL80211_ATTR_KEY])
852 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
853 else
854 err = nl80211_parse_key_old(info, k);
855
856 if (err)
857 return err;
858
859 if (k->def && k->defmgmt)
860 return -EINVAL;
861
dbd2fd65
JB		 862 if (k->defmgmt) {
863 if (k->def_uni || !k->def_multi)
864 return -EINVAL;
865 }
866
b9454e83
JB		 867 if (k->idx != -1) {
868 if (k->defmgmt) {
869 if (k->idx < 4 || k->idx > 5)
870 return -EINVAL;
871 } else if (k->def) {
872 if (k->idx < 0 || k->idx > 3)
873 return -EINVAL;
874 } else {
875 if (k->idx < 0 || k->idx > 5)
876 return -EINVAL;
877 }
878 }
879
880 return 0;
881}
882
fffd0934
JB		 883static struct cfg80211_cached_keys *
884nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 885 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 886{
887 struct key_parse parse;
888 struct nlattr *key;
889 struct cfg80211_cached_keys *result;
890 int rem, err, def = 0;
f1c1f17a
JB		 891 bool have_key = false;
892
893 nla_for_each_nested(key, keys, rem) {
894 have_key = true;
895 break;
896 }
897
898 if (!have_key)
899 return NULL;
fffd0934
JB		 900
901 result = kzalloc(sizeof(*result), GFP_KERNEL);
902 if (!result)
903 return ERR_PTR(-ENOMEM);
904
905 result->def = -1;
fffd0934
JB		 906
907 nla_for_each_nested(key, keys, rem) {
908 memset(&parse, 0, sizeof(parse));
909 parse.idx = -1;
910
911 err = nl80211_parse_key_new(key, &parse);
912 if (err)
913 goto error;
914 err = -EINVAL;
915 if (!parse.p.key)
916 goto error;
42ee231c 917 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 918 goto error;
919 if (parse.def) {
920 if (def)
921 goto error;
922 def = 1;
923 result->def = parse.idx;
dbd2fd65
JB		 924 if (!parse.def_uni || !parse.def_multi)
925 goto error;
fffd0934
JB		 926 } else if (parse.defmgmt)
927 goto error;
928 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 929 parse.idx, false, NULL);
fffd0934
JB		 930 if (err)
931 goto error;
386b1f27
JB		 932 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
933 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
934 err = -EINVAL;
935 goto error;
936 }
fffd0934
JB		 937 result->params[parse.idx].cipher = parse.p.cipher;
938 result->params[parse.idx].key_len = parse.p.key_len;
939 result->params[parse.idx].key = result->data[parse.idx];
940 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 941
386b1f27
JB		 942 /* must be WEP key if we got here */
943 if (no_ht)
944 *no_ht = true;
fffd0934
JB		 945 }
946
f1c1f17a
JB		 947 if (result->def < 0) {
948 err = -EINVAL;
949 goto error;
950 }
951
fffd0934
JB		 952 return result;
953 error:
954 kfree(result);
955 return ERR_PTR(err);
956}
957
958static int nl80211_key_allowed(struct wireless_dev *wdev)
959{
960 ASSERT_WDEV_LOCK(wdev);
961
fffd0934
JB		 962 switch (wdev->iftype) {
963 case NL80211_IFTYPE_AP:
964 case NL80211_IFTYPE_AP_VLAN:
074ac8df 965 case NL80211_IFTYPE_P2P_GO:
ff973af7 966 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 967 break;
968 case NL80211_IFTYPE_ADHOC:
fffd0934 969 case NL80211_IFTYPE_STATION:
074ac8df 970 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 971 if (!wdev->current_bss)
fffd0934
JB		 972 return -ENOLINK;
973 break;
de4fcbad 974 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 975 case NL80211_IFTYPE_OCB:
de4fcbad 976 case NL80211_IFTYPE_MONITOR:
cb3b7d87 977 case NL80211_IFTYPE_NAN:
de4fcbad
JB		 978 case NL80211_IFTYPE_P2P_DEVICE:
979 case NL80211_IFTYPE_WDS:
980 case NUM_NL80211_IFTYPES:
fffd0934
JB		 981 return -EINVAL;
982 }
983
984 return 0;
985}
986
664834de
JM		 987static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
988 struct nlattr *tb)
989{
990 struct ieee80211_channel *chan;
991
992 if (tb == NULL)
993 return NULL;
994 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
995 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
996 return NULL;
997 return chan;
998}
999
7527a782
JB		 1000static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
1001{
1002 struct nlattr *nl_modes = nla_nest_start(msg, attr);
1003 int i;
1004
1005 if (!nl_modes)
1006 goto nla_put_failure;
1007
1008 i = 0;
1009 while (ifmodes) {
9360ffd1
DM		 1010 if ((ifmodes & 1) && nla_put_flag(msg, i))
1011 goto nla_put_failure;
7527a782
JB		 1012 ifmodes >>= 1;
1013 i++;
1014 }
1015
1016 nla_nest_end(msg, nl_modes);
1017 return 0;
1018
1019nla_put_failure:
1020 return -ENOBUFS;
1021}
1022
1023static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 1024 struct sk_buff *msg,
1025 bool large)
7527a782
JB		 1026{
1027 struct nlattr *nl_combis;
1028 int i, j;
1029
1030 nl_combis = nla_nest_start(msg,
1031 NL80211_ATTR_INTERFACE_COMBINATIONS);
1032 if (!nl_combis)
1033 goto nla_put_failure;
1034
1035 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1036 const struct ieee80211_iface_combination *c;
1037 struct nlattr *nl_combi, *nl_limits;
1038
1039 c = &wiphy->iface_combinations[i];
1040
1041 nl_combi = nla_nest_start(msg, i + 1);
1042 if (!nl_combi)
1043 goto nla_put_failure;
1044
1045 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1046 if (!nl_limits)
1047 goto nla_put_failure;
1048
1049 for (j = 0; j < c->n_limits; j++) {
1050 struct nlattr *nl_limit;
1051
1052 nl_limit = nla_nest_start(msg, j + 1);
1053 if (!nl_limit)
1054 goto nla_put_failure;
9360ffd1
DM		 1055 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1056 c->limits[j].max))
1057 goto nla_put_failure;
7527a782
JB		 1058 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1059 c->limits[j].types))
1060 goto nla_put_failure;
1061 nla_nest_end(msg, nl_limit);
1062 }
1063
1064 nla_nest_end(msg, nl_limits);
1065
9360ffd1
DM		 1066 if (c->beacon_int_infra_match &&
1067 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1068 goto nla_put_failure;
1069 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1070 c->num_different_channels) ||
1071 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1072 c->max_interfaces))
1073 goto nla_put_failure;
cdc89b97 1074 if (large &&
8c48b50a
FF		 1075 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1076 c->radar_detect_widths) ||
1077 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1078 c->radar_detect_regions)))
cdc89b97 1079 goto nla_put_failure;
0c317a02
PK		 1080 if (c->beacon_int_min_gcd &&
1081 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1082 c->beacon_int_min_gcd))
1083 goto nla_put_failure;
7527a782
JB		 1084
1085 nla_nest_end(msg, nl_combi);
1086 }
1087
1088 nla_nest_end(msg, nl_combis);
1089
1090 return 0;
1091nla_put_failure:
1092 return -ENOBUFS;
1093}
1094
3713b4e3 1095#ifdef CONFIG_PM
b56cf720
JB		 1096static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1097 struct sk_buff *msg)
1098{
964dc9e2 1099 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1100 struct nlattr *nl_tcp;
1101
1102 if (!tcp)
1103 return 0;
1104
1105 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1106 if (!nl_tcp)
1107 return -ENOBUFS;
1108
1109 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1110 tcp->data_payload_max))
1111 return -ENOBUFS;
1112
1113 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1114 tcp->data_payload_max))
1115 return -ENOBUFS;
1116
1117 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1118 return -ENOBUFS;
1119
1120 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1121 sizeof(*tcp->tok), tcp->tok))
1122 return -ENOBUFS;
1123
1124 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1125 tcp->data_interval_max))
1126 return -ENOBUFS;
1127
1128 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1129 tcp->wake_payload_max))
1130 return -ENOBUFS;
1131
1132 nla_nest_end(msg, nl_tcp);
1133 return 0;
1134}
1135
3713b4e3 1136static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1137 struct cfg80211_registered_device *rdev,
b56cf720 1138 bool large)
55682965 1139{
3713b4e3 1140 struct nlattr *nl_wowlan;
55682965 1141
1b8ec87a 1142 if (!rdev->wiphy.wowlan)
3713b4e3 1143 return 0;
55682965 1144
3713b4e3
JB		 1145 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1146 if (!nl_wowlan)
1147 return -ENOBUFS;
9360ffd1 1148
1b8ec87a 1149 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1150 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1151 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1152 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1153 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1154 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1155 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1156 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1157 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1158 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1159 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1160 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1161 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1162 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1163 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1164 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1165 return -ENOBUFS;
9360ffd1 1166
1b8ec87a 1167 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1168 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1169 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1170 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1171 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1172 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1173 };
9360ffd1 1174
3713b4e3
JB		 1175 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1176 sizeof(pat), &pat))
1177 return -ENOBUFS;
1178 }
9360ffd1 1179
75453ccb
LC		 1180 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1181 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1182 rdev->wiphy.wowlan->max_nd_match_sets))
1183 return -ENOBUFS;
1184
1b8ec87a 1185 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1186 return -ENOBUFS;
1187
3713b4e3 1188 nla_nest_end(msg, nl_wowlan);
9360ffd1 1189
3713b4e3
JB		 1190 return 0;
1191}
1192#endif
9360ffd1 1193
be29b99a 1194static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1195 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1196{
1197 struct nl80211_coalesce_rule_support rule;
1198
1b8ec87a 1199 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1200 return 0;
1201
1b8ec87a
ZG		 1202 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1203 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1204 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1205 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1206 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1207 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1208
1209 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1210 return -ENOBUFS;
1211
1212 return 0;
1213}
1214
3713b4e3
JB		 1215static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1216 struct ieee80211_supported_band *sband)
1217{
1218 struct nlattr *nl_rates, *nl_rate;
1219 struct ieee80211_rate *rate;
1220 int i;
87bbbe22 1221
3713b4e3
JB		 1222 /* add HT info */
1223 if (sband->ht_cap.ht_supported &&
1224 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1225 sizeof(sband->ht_cap.mcs),
1226 &sband->ht_cap.mcs) ||
1227 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1228 sband->ht_cap.cap) ||
1229 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1230 sband->ht_cap.ampdu_factor) ||
1231 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1232 sband->ht_cap.ampdu_density)))
1233 return -ENOBUFS;
afe0cbf8 1234
3713b4e3
JB		 1235 /* add VHT info */
1236 if (sband->vht_cap.vht_supported &&
1237 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1238 sizeof(sband->vht_cap.vht_mcs),
1239 &sband->vht_cap.vht_mcs) ||
1240 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1241 sband->vht_cap.cap)))
1242 return -ENOBUFS;
f59ac048 1243
3713b4e3
JB		 1244 /* add bitrates */
1245 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1246 if (!nl_rates)
1247 return -ENOBUFS;
ee688b00 1248
3713b4e3
JB		 1249 for (i = 0; i < sband->n_bitrates; i++) {
1250 nl_rate = nla_nest_start(msg, i);
1251 if (!nl_rate)
1252 return -ENOBUFS;
ee688b00 1253
3713b4e3
JB		 1254 rate = &sband->bitrates[i];
1255 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1256 rate->bitrate))
1257 return -ENOBUFS;
1258 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1259 nla_put_flag(msg,
1260 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1261 return -ENOBUFS;
ee688b00 1262
3713b4e3
JB		 1263 nla_nest_end(msg, nl_rate);
1264 }
d51626df 1265
3713b4e3 1266 nla_nest_end(msg, nl_rates);
bf0c111e 1267
3713b4e3
JB		 1268 return 0;
1269}
ee688b00 1270
3713b4e3
JB		 1271static int
1272nl80211_send_mgmt_stypes(struct sk_buff *msg,
1273 const struct ieee80211_txrx_stypes *mgmt_stypes)
1274{
1275 u16 stypes;
1276 struct nlattr *nl_ftypes, *nl_ifs;
1277 enum nl80211_iftype ift;
1278 int i;
ee688b00 1279
3713b4e3
JB		 1280 if (!mgmt_stypes)
1281 return 0;
5dab3b8a 1282
3713b4e3
JB		 1283 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1284 if (!nl_ifs)
1285 return -ENOBUFS;
e2f367f2 1286
3713b4e3
JB		 1287 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1288 nl_ftypes = nla_nest_start(msg, ift);
1289 if (!nl_ftypes)
1290 return -ENOBUFS;
1291 i = 0;
1292 stypes = mgmt_stypes[ift].tx;
1293 while (stypes) {
1294 if ((stypes & 1) &&
1295 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1296 (i << 4) | IEEE80211_FTYPE_MGMT))
1297 return -ENOBUFS;
1298 stypes >>= 1;
1299 i++;
ee688b00 1300 }
3713b4e3
JB		 1301 nla_nest_end(msg, nl_ftypes);
1302 }
ee688b00 1303
3713b4e3 1304 nla_nest_end(msg, nl_ifs);
ee688b00 1305
3713b4e3
JB		 1306 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1307 if (!nl_ifs)
1308 return -ENOBUFS;
ee688b00 1309
3713b4e3
JB		 1310 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1311 nl_ftypes = nla_nest_start(msg, ift);
1312 if (!nl_ftypes)
1313 return -ENOBUFS;
1314 i = 0;
1315 stypes = mgmt_stypes[ift].rx;
1316 while (stypes) {
1317 if ((stypes & 1) &&
1318 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1319 (i << 4) | IEEE80211_FTYPE_MGMT))
1320 return -ENOBUFS;
1321 stypes >>= 1;
1322 i++;
1323 }
1324 nla_nest_end(msg, nl_ftypes);
1325 }
1326 nla_nest_end(msg, nl_ifs);
ee688b00 1327
3713b4e3
JB		 1328 return 0;
1329}
ee688b00 1330
86e8cf98
JB		 1331struct nl80211_dump_wiphy_state {
1332 s64 filter_wiphy;
1333 long start;
019ae3a9 1334 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1335 bool split;
1336};
1337
1b8ec87a 1338static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1339 enum nl80211_commands cmd,
3713b4e3 1340 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1341 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1342{
1343 void *hdr;
1344 struct nlattr *nl_bands, *nl_band;
1345 struct nlattr *nl_freqs, *nl_freq;
1346 struct nlattr *nl_cmds;
57fbcce3 1347 enum nl80211_band band;
3713b4e3
JB		 1348 struct ieee80211_channel *chan;
1349 int i;
1350 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1351 rdev->wiphy.mgmt_stypes;
fe1abafd 1352 u32 features;
ee688b00 1353
3bb20556 1354 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1355 if (!hdr)
1356 return -ENOBUFS;
ee688b00 1357
86e8cf98
JB		 1358 if (WARN_ON(!state))
1359 return -EINVAL;
ee688b00 1360
1b8ec87a 1361 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1362 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1363 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1364 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1365 cfg80211_rdev_list_generation))
8fdc621d
JB		 1366 goto nla_put_failure;
1367
3bb20556
JB		 1368 if (cmd != NL80211_CMD_NEW_WIPHY)
1369 goto finish;
1370
86e8cf98 1371 switch (state->split_start) {
3713b4e3
JB		 1372 case 0:
1373 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1374 rdev->wiphy.retry_short) ||
3713b4e3 1375 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1376 rdev->wiphy.retry_long) ||
3713b4e3 1377 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1378 rdev->wiphy.frag_threshold) ||
3713b4e3 1379 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1380 rdev->wiphy.rts_threshold) ||
3713b4e3 1381 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1382 rdev->wiphy.coverage_class) ||
3713b4e3 1383 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1384 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1385 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1386 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1387 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1388 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1389 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1390 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1391 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1392 rdev->wiphy.max_match_sets) ||
1393 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1394 rdev->wiphy.max_sched_scan_plans) ||
1395 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1396 rdev->wiphy.max_sched_scan_plan_interval) ||
1397 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1398 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1399 goto nla_put_failure;
3713b4e3 1400
1b8ec87a 1401 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1402 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1403 goto nla_put_failure;
1b8ec87a 1404 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1405 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1406 goto nla_put_failure;
1b8ec87a 1407 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1408 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1409 goto nla_put_failure;
1b8ec87a 1410 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1411 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1412 goto nla_put_failure;
1b8ec87a 1413 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1414 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1415 goto nla_put_failure;
1b8ec87a 1416 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1417 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1418 goto nla_put_failure;
86e8cf98
JB		 1419 state->split_start++;
1420 if (state->split)
3713b4e3
JB		 1421 break;
1422 case 1:
1423 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1424 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1425 rdev->wiphy.cipher_suites))
3713b4e3 1426 goto nla_put_failure;
4745fc09 1427
3713b4e3 1428 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1429 rdev->wiphy.max_num_pmkids))
3713b4e3 1430 goto nla_put_failure;
b23aa676 1431
1b8ec87a 1432 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1433 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1434 goto nla_put_failure;
b23aa676 1435
3713b4e3 1436 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1437 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1438 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1439 rdev->wiphy.available_antennas_rx))
9360ffd1 1440 goto nla_put_failure;
b23aa676 1441
1b8ec87a 1442 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1443 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1444 rdev->wiphy.probe_resp_offload))
3713b4e3 1445 goto nla_put_failure;
8fdc621d 1446
1b8ec87a
ZG		 1447 if ((rdev->wiphy.available_antennas_tx ||
1448 rdev->wiphy.available_antennas_rx) &&
1449 rdev->ops->get_antenna) {
3713b4e3
JB		 1450 u32 tx_ant = 0, rx_ant = 0;
1451 int res;
7a087e74 1452
1b8ec87a 1453 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1454 if (!res) {
1455 if (nla_put_u32(msg,
1456 NL80211_ATTR_WIPHY_ANTENNA_TX,
1457 tx_ant) ||
1458 nla_put_u32(msg,
1459 NL80211_ATTR_WIPHY_ANTENNA_RX,
1460 rx_ant))
1461 goto nla_put_failure;
1462 }
1463 }
a293911d 1464
86e8cf98
JB		 1465 state->split_start++;
1466 if (state->split)
3713b4e3
JB		 1467 break;
1468 case 2:
1469 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1470 rdev->wiphy.interface_modes))
3713b4e3 1471 goto nla_put_failure;
86e8cf98
JB		 1472 state->split_start++;
1473 if (state->split)
3713b4e3
JB		 1474 break;
1475 case 3:
1476 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1477 if (!nl_bands)
1478 goto nla_put_failure;
f7ca38df 1479
86e8cf98 1480 for (band = state->band_start;
57fbcce3 1481 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1482 struct ieee80211_supported_band *sband;
2e161f78 1483
1b8ec87a 1484 sband = rdev->wiphy.bands[band];
2e161f78 1485
3713b4e3
JB		 1486 if (!sband)
1487 continue;
1488
1489 nl_band = nla_nest_start(msg, band);
1490 if (!nl_band)
2e161f78 1491 goto nla_put_failure;
3713b4e3 1492
86e8cf98 1493 switch (state->chan_start) {
3713b4e3
JB		 1494 case 0:
1495 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1496 goto nla_put_failure;
86e8cf98
JB		 1497 state->chan_start++;
1498 if (state->split)
3713b4e3
JB		 1499 break;
1500 default:
1501 /* add frequencies */
1502 nl_freqs = nla_nest_start(
1503 msg, NL80211_BAND_ATTR_FREQS);
1504 if (!nl_freqs)
1505 goto nla_put_failure;
1506
86e8cf98 1507 for (i = state->chan_start - 1;
3713b4e3
JB		 1508 i < sband->n_channels;
1509 i++) {
1510 nl_freq = nla_nest_start(msg, i);
1511 if (!nl_freq)
1512 goto nla_put_failure;
1513
1514 chan = &sband->channels[i];
1515
86e8cf98
JB		 1516 if (nl80211_msg_put_channel(
1517 msg, chan,
1518 state->split))
3713b4e3
JB		 1519 goto nla_put_failure;
1520
1521 nla_nest_end(msg, nl_freq);
86e8cf98 1522 if (state->split)
3713b4e3
JB		 1523 break;
1524 }
1525 if (i < sband->n_channels)
86e8cf98 1526 state->chan_start = i + 2;
3713b4e3 1527 else
86e8cf98 1528 state->chan_start = 0;
3713b4e3
JB		 1529 nla_nest_end(msg, nl_freqs);
1530 }
1531
1532 nla_nest_end(msg, nl_band);
1533
86e8cf98 1534 if (state->split) {
3713b4e3 1535 /* start again here */
86e8cf98 1536 if (state->chan_start)
3713b4e3
JB		 1537 band--;
1538 break;
2e161f78 1539 }
2e161f78 1540 }
3713b4e3 1541 nla_nest_end(msg, nl_bands);
2e161f78 1542
57fbcce3 1543 if (band < NUM_NL80211_BANDS)
86e8cf98 1544 state->band_start = band + 1;
3713b4e3 1545 else
86e8cf98 1546 state->band_start = 0;
74b70a4e 1547
3713b4e3 1548 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1549 if (state->band_start == 0 && state->chan_start == 0)
1550 state->split_start++;
1551 if (state->split)
3713b4e3
JB		 1552 break;
1553 case 4:
1554 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1555 if (!nl_cmds)
2e161f78
JB		 1556 goto nla_put_failure;
1557
3713b4e3
JB		 1558 i = 0;
1559#define CMD(op, n) \
1560 do { \
1b8ec87a 1561 if (rdev->ops->op) { \
3713b4e3
JB		 1562 i++; \
1563 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1564 goto nla_put_failure; \
1565 } \
1566 } while (0)
1567
1568 CMD(add_virtual_intf, NEW_INTERFACE);
1569 CMD(change_virtual_intf, SET_INTERFACE);
1570 CMD(add_key, NEW_KEY);
1571 CMD(start_ap, START_AP);
1572 CMD(add_station, NEW_STATION);
1573 CMD(add_mpath, NEW_MPATH);
1574 CMD(update_mesh_config, SET_MESH_CONFIG);
1575 CMD(change_bss, SET_BSS);
1576 CMD(auth, AUTHENTICATE);
1577 CMD(assoc, ASSOCIATE);
1578 CMD(deauth, DEAUTHENTICATE);
1579 CMD(disassoc, DISASSOCIATE);
1580 CMD(join_ibss, JOIN_IBSS);
1581 CMD(join_mesh, JOIN_MESH);
1582 CMD(set_pmksa, SET_PMKSA);
1583 CMD(del_pmksa, DEL_PMKSA);
1584 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1585 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1586 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1587 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1588 CMD(mgmt_tx, FRAME);
1589 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1590 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1591 i++;
1592 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1593 goto nla_put_failure;
2e161f78 1594 }
1b8ec87a
ZG		 1595 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1596 rdev->ops->join_mesh) {
3713b4e3
JB		 1597 i++;
1598 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1599 goto nla_put_failure;
1600 }
1601 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1602 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1603 CMD(tdls_mgmt, TDLS_MGMT);
1604 CMD(tdls_oper, TDLS_OPER);
1605 }
1b8ec87a 1606 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1607 CMD(sched_scan_start, START_SCHED_SCAN);
1608 CMD(probe_client, PROBE_CLIENT);
1609 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1610 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1611 i++;
1612 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1613 goto nla_put_failure;
1614 }
1615 CMD(start_p2p_device, START_P2P_DEVICE);
1616 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1617#ifdef CONFIG_NL80211_TESTMODE
1618 CMD(testmode_cmd, TESTMODE);
1619#endif
86e8cf98 1620 if (state->split) {
5de17984
AS		 1621 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1622 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1623 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1624 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1625 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1626 if (rdev->wiphy.features &
1627 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1628 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1629 }
02df00eb 1630 /* add into the if now */
3713b4e3 1631#undef CMD
ff1b6e69 1632
1b8ec87a 1633 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1634 i++;
1635 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1636 goto nla_put_failure;
ff1b6e69
JB		 1637 }
1638
1b8ec87a 1639 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1640 i++;
1641 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1642 goto nla_put_failure;
1643 }
1644
1645 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1646 state->split_start++;
1647 if (state->split)
3713b4e3
JB		 1648 break;
1649 case 5:
1b8ec87a
ZG		 1650 if (rdev->ops->remain_on_channel &&
1651 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1652 nla_put_u32(msg,
1653 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1654 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1655 goto nla_put_failure;
1656
1b8ec87a 1657 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1658 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1659 goto nla_put_failure;
1660
1661 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1662 goto nla_put_failure;
86e8cf98
JB		 1663 state->split_start++;
1664 if (state->split)
3713b4e3
JB		 1665 break;
1666 case 6:
1667#ifdef CONFIG_PM
1b8ec87a 1668 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1669 goto nla_put_failure;
86e8cf98
JB		 1670 state->split_start++;
1671 if (state->split)
3713b4e3
JB		 1672 break;
1673#else
86e8cf98 1674 state->split_start++;
dfb89c56 1675#endif
3713b4e3
JB		 1676 case 7:
1677 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1678 rdev->wiphy.software_iftypes))
3713b4e3 1679 goto nla_put_failure;
ff1b6e69 1680
1b8ec87a 1681 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1682 state->split))
3713b4e3 1683 goto nla_put_failure;
7527a782 1684
86e8cf98
JB		 1685 state->split_start++;
1686 if (state->split)
3713b4e3
JB		 1687 break;
1688 case 8:
1b8ec87a 1689 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1690 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1691 rdev->wiphy.ap_sme_capa))
3713b4e3 1692 goto nla_put_failure;
7527a782 1693
1b8ec87a 1694 features = rdev->wiphy.features;
fe1abafd
JB		 1695 /*
1696 * We can only add the per-channel limit information if the
1697 * dump is split, otherwise it makes it too big. Therefore
1698 * only advertise it in that case.
1699 */
86e8cf98 1700 if (state->split)
fe1abafd
JB		 1701 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1702 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1703 goto nla_put_failure;
562a7480 1704
1b8ec87a 1705 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1706 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1707 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1708 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1709 goto nla_put_failure;
1f074bd8 1710
1b8ec87a
ZG		 1711 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1712 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1713 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1714 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1715 goto nla_put_failure;
7e7c8926 1716
3713b4e3
JB		 1717 /*
1718 * Any information below this point is only available to
1719 * applications that can deal with it being split. This
1720 * helps ensure that newly added capabilities don't break
1721 * older tools by overrunning their buffers.
1722 *
1723 * We still increment split_start so that in the split
1724 * case we'll continue with more data in the next round,
1725 * but break unconditionally so unsplit data stops here.
1726 */
86e8cf98 1727 state->split_start++;
3713b4e3
JB		 1728 break;
1729 case 9:
1b8ec87a 1730 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1731 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1732 rdev->wiphy.extended_capabilities_len,
1733 rdev->wiphy.extended_capabilities) ||
fe1abafd 1734 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1735 rdev->wiphy.extended_capabilities_len,
1736 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1737 goto nla_put_failure;
a50df0c4 1738
1b8ec87a 1739 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1740 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1741 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1742 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1743 goto nla_put_failure;
1744
be29b99a
AK		 1745 state->split_start++;
1746 break;
1747 case 10:
1b8ec87a 1748 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1749 goto nla_put_failure;
1750
1b8ec87a 1751 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1752 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1753 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1754 goto nla_put_failure;
b43504cf 1755
1b8ec87a 1756 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1757 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1758 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1759 goto nla_put_failure;
1760
ad7e718c
JB		 1761 state->split_start++;
1762 break;
1763 case 11:
1b8ec87a 1764 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1765 const struct nl80211_vendor_cmd_info *info;
1766 struct nlattr *nested;
1767
1768 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1769 if (!nested)
1770 goto nla_put_failure;
1771
1b8ec87a
ZG		 1772 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1773 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1774 if (nla_put(msg, i + 1, sizeof(*info), info))
1775 goto nla_put_failure;
1776 }
1777 nla_nest_end(msg, nested);
1778 }
1779
1b8ec87a 1780 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1781 const struct nl80211_vendor_cmd_info *info;
1782 struct nlattr *nested;
ad7e718c 1783
567ffc35
JB		 1784 nested = nla_nest_start(msg,
1785 NL80211_ATTR_VENDOR_EVENTS);
1786 if (!nested)
ad7e718c 1787 goto nla_put_failure;
567ffc35 1788
1b8ec87a
ZG		 1789 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1790 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1791 if (nla_put(msg, i + 1, sizeof(*info), info))
1792 goto nla_put_failure;
1793 }
1794 nla_nest_end(msg, nested);
1795 }
9a774c78
AO		 1796 state->split_start++;
1797 break;
1798 case 12:
1799 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1800 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1801 rdev->wiphy.max_num_csa_counters))
1802 goto nla_put_failure;
01e0daa4 1803
1bdd716c
AN		 1804 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1805 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1806 goto nla_put_failure;
1807
d75bb06b
GKS		 1808 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1809 sizeof(rdev->wiphy.ext_features),
1810 rdev->wiphy.ext_features))
1811 goto nla_put_failure;
1812
38de03d2
AS		 1813 if (rdev->wiphy.bss_select_support) {
1814 struct nlattr *nested;
1815 u32 bss_select_support = rdev->wiphy.bss_select_support;
1816
1817 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1818 if (!nested)
1819 goto nla_put_failure;
1820
1821 i = 0;
1822 while (bss_select_support) {
1823 if ((bss_select_support & 1) &&
1824 nla_put_flag(msg, i))
1825 goto nla_put_failure;
1826 i++;
1827 bss_select_support >>= 1;
1828 }
1829 nla_nest_end(msg, nested);
1830 }
1831
019ae3a9
KV		 1832 state->split_start++;
1833 break;
1834 case 13:
1835 if (rdev->wiphy.num_iftype_ext_capab &&
1836 rdev->wiphy.iftype_ext_capab) {
1837 struct nlattr *nested_ext_capab, *nested;
1838
1839 nested = nla_nest_start(msg,
1840 NL80211_ATTR_IFTYPE_EXT_CAPA);
1841 if (!nested)
1842 goto nla_put_failure;
1843
1844 for (i = state->capa_start;
1845 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1846 const struct wiphy_iftype_ext_capab *capab;
1847
1848 capab = &rdev->wiphy.iftype_ext_capab[i];
1849
1850 nested_ext_capab = nla_nest_start(msg, i);
1851 if (!nested_ext_capab ||
1852 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1853 capab->iftype) ||
1854 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1855 capab->extended_capabilities_len,
1856 capab->extended_capabilities) ||
1857 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1858 capab->extended_capabilities_len,
1859 capab->extended_capabilities_mask))
1860 goto nla_put_failure;
1861
1862 nla_nest_end(msg, nested_ext_capab);
1863 if (state->split)
1864 break;
1865 }
1866 nla_nest_end(msg, nested);
1867 if (i < rdev->wiphy.num_iftype_ext_capab) {
1868 state->capa_start = i + 1;
1869 break;
1870 }
1871 }
1872
3713b4e3 1873 /* done */
86e8cf98 1874 state->split_start = 0;
3713b4e3
JB		 1875 break;
1876 }
3bb20556 1877 finish:
053c095a
JB		 1878 genlmsg_end(msg, hdr);
1879 return 0;
55682965
JB		 1880
1881 nla_put_failure:
bc3ed28c
TG		 1882 genlmsg_cancel(msg, hdr);
1883 return -EMSGSIZE;
55682965
JB		 1884}
1885
86e8cf98
JB		 1886static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1887 struct netlink_callback *cb,
1888 struct nl80211_dump_wiphy_state *state)
1889{
1890 struct nlattr **tb = nl80211_fam.attrbuf;
1891 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1892 tb, nl80211_fam.maxattr, nl80211_policy);
1893 /* ignore parse errors for backward compatibility */
1894 if (ret)
1895 return 0;
1896
1897 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1898 if (tb[NL80211_ATTR_WIPHY])
1899 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1900 if (tb[NL80211_ATTR_WDEV])
1901 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1902 if (tb[NL80211_ATTR_IFINDEX]) {
1903 struct net_device *netdev;
1904 struct cfg80211_registered_device *rdev;
1905 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1906
7f2b8562 1907 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1908 if (!netdev)
1909 return -ENODEV;
1910 if (netdev->ieee80211_ptr) {
f26cbf40 1911 rdev = wiphy_to_rdev(
86e8cf98
JB		 1912 netdev->ieee80211_ptr->wiphy);
1913 state->filter_wiphy = rdev->wiphy_idx;
1914 }
86e8cf98
JB		 1915 }
1916
1917 return 0;
1918}
1919
55682965
JB		 1920static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1921{
645e77de 1922 int idx = 0, ret;
86e8cf98 1923 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1924 struct cfg80211_registered_device *rdev;
3a5a423b 1925
5fe231e8 1926 rtnl_lock();
86e8cf98
JB		 1927 if (!state) {
1928 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1929 if (!state) {
1930 rtnl_unlock();
86e8cf98 1931 return -ENOMEM;
3713b4e3 1932 }
86e8cf98
JB		 1933 state->filter_wiphy = -1;
1934 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1935 if (ret) {
1936 kfree(state);
1937 rtnl_unlock();
1938 return ret;
3713b4e3 1939 }
86e8cf98 1940 cb->args[0] = (long)state;
3713b4e3
JB		 1941 }
1942
1b8ec87a
ZG		 1943 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1944 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1945 continue;
86e8cf98 1946 if (++idx <= state->start)
55682965 1947 continue;
86e8cf98 1948 if (state->filter_wiphy != -1 &&
1b8ec87a 1949 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1950 continue;
1951 /* attempt to fit multiple wiphy data chunks into the skb */
1952 do {
3bb20556
JB		 1953 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1954 skb,
3713b4e3
JB		 1955 NETLINK_CB(cb->skb).portid,
1956 cb->nlh->nlmsg_seq,
86e8cf98 1957 NLM_F_MULTI, state);
3713b4e3
JB		 1958 if (ret < 0) {
1959 /*
1960 * If sending the wiphy data didn't fit (ENOBUFS
1961 * or EMSGSIZE returned), this SKB is still
1962 * empty (so it's not too big because another
1963 * wiphy dataset is already in the skb) and
1964 * we've not tried to adjust the dump allocation
1965 * yet ... then adjust the alloc size to be
1966 * bigger, and return 1 but with the empty skb.
1967 * This results in an empty message being RX'ed
1968 * in userspace, but that is ignored.
1969 *
1970 * We can then retry with the larger buffer.
1971 */
1972 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1973 !skb->len && !state->split &&
3713b4e3
JB		 1974 cb->min_dump_alloc < 4096) {
1975 cb->min_dump_alloc = 4096;
f12cb289 1976 state->split_start = 0;
d98cae64 1977 rtnl_unlock();
3713b4e3
JB		 1978 return 1;
1979 }
1980 idx--;
1981 break;
645e77de 1982 }
86e8cf98 1983 } while (state->split_start > 0);
3713b4e3 1984 break;
55682965 1985 }
5fe231e8 1986 rtnl_unlock();
55682965 1987
86e8cf98 1988 state->start = idx;
55682965
JB		 1989
1990 return skb->len;
1991}
1992
86e8cf98
JB		 1993static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1994{
1995 kfree((void *)cb->args[0]);
1996 return 0;
1997}
1998
55682965
JB		 1999static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2000{
2001 struct sk_buff *msg;
1b8ec87a 2002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 2003 struct nl80211_dump_wiphy_state state = {};
55682965 2004
645e77de 2005 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 2006 if (!msg)
4c476991 2007 return -ENOMEM;
55682965 2008
3bb20556
JB		 2009 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2010 info->snd_portid, info->snd_seq, 0,
86e8cf98 2011 &state) < 0) {
4c476991
JB		 2012 nlmsg_free(msg);
2013 return -ENOBUFS;
2014 }
55682965 2015
134e6375 2016 return genlmsg_reply(msg, info);
55682965
JB		 2017}
2018
31888487
JM		 2019static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2020 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2021 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2022 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2023 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2024 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2025};
2026
2027static int parse_txq_params(struct nlattr *tb[],
2028 struct ieee80211_txq_params *txq_params)
2029{
a3304b0a 2030 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 2031 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2032 !tb[NL80211_TXQ_ATTR_AIFS])
2033 return -EINVAL;
2034
a3304b0a 2035 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 2036 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2037 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2038 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2039 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2040
a3304b0a
JB		 2041 if (txq_params->ac >= NL80211_NUM_ACS)
2042 return -EINVAL;
2043
31888487
JM		 2044 return 0;
2045}
2046
f444de05
JB		 2047static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2048{
2049 /*
cc1d2806
JB		 2050 * You can only set the channel explicitly for WDS interfaces,
2051 * all others have their channel managed via their respective
2052 * "establish a connection" command (connect, join, ...)
2053 *
2054 * For AP/GO and mesh mode, the channel can be set with the
2055 * channel userspace API, but is only stored and passed to the
2056 * low-level driver when the AP starts or the mesh is joined.
2057 * This is for backward compatibility, userspace can also give
2058 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2059 *
2060 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2061 * whatever else is going on, so they have their own special
2062 * operation to set the monitor channel if possible.
f444de05
JB		 2063 */
2064 return !wdev ||
2065 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2066 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2067 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2068 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2069}
2070
683b6d3b
JB		 2071static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2072 struct genl_info *info,
2073 struct cfg80211_chan_def *chandef)
2074{
dbeca2ea 2075 u32 control_freq;
683b6d3b
JB		 2076
2077 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2078 return -EINVAL;
2079
2080 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2081
2082 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2083 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2084 chandef->center_freq1 = control_freq;
2085 chandef->center_freq2 = 0;
683b6d3b
JB		 2086
2087 /* Primary channel not allowed */
2088 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2089 return -EINVAL;
2090
3d9d1d66
JB		 2091 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2092 enum nl80211_channel_type chantype;
2093
2094 chantype = nla_get_u32(
2095 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2096
2097 switch (chantype) {
2098 case NL80211_CHAN_NO_HT:
2099 case NL80211_CHAN_HT20:
2100 case NL80211_CHAN_HT40PLUS:
2101 case NL80211_CHAN_HT40MINUS:
2102 cfg80211_chandef_create(chandef, chandef->chan,
2103 chantype);
2104 break;
2105 default:
2106 return -EINVAL;
2107 }
2108 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2109 chandef->width =
2110 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2111 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2112 chandef->center_freq1 =
2113 nla_get_u32(
2114 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2115 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2116 chandef->center_freq2 =
2117 nla_get_u32(
2118 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2119 }
2120
9f5e8f6e 2121 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2122 return -EINVAL;
2123
9f5e8f6e
JB		 2124 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2125 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2126 return -EINVAL;
2127
2f301ab2
SW		 2128 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2129 chandef->width == NL80211_CHAN_WIDTH_10) &&
2130 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2131 return -EINVAL;
2132
683b6d3b
JB		 2133 return 0;
2134}
2135
f444de05 2136static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2137 struct net_device *dev,
f444de05
JB		 2138 struct genl_info *info)
2139{
683b6d3b 2140 struct cfg80211_chan_def chandef;
f444de05 2141 int result;
e8c9bd5b 2142 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2143 struct wireless_dev *wdev = NULL;
e8c9bd5b 2144
e16821bc
JM		 2145 if (dev)
2146 wdev = dev->ieee80211_ptr;
f444de05
JB		 2147 if (!nl80211_can_set_dev_channel(wdev))
2148 return -EOPNOTSUPP;
e16821bc
JM		 2149 if (wdev)
2150 iftype = wdev->iftype;
f444de05 2151
683b6d3b
JB		 2152 result = nl80211_parse_chandef(rdev, info, &chandef);
2153 if (result)
2154 return result;
f444de05 2155
e8c9bd5b 2156 switch (iftype) {
aa430da4
JB		 2157 case NL80211_IFTYPE_AP:
2158 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2159 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2160 iftype)) {
aa430da4
JB		 2161 result = -EINVAL;
2162 break;
2163 }
e16821bc
JM		 2164 if (wdev->beacon_interval) {
2165 if (!dev || !rdev->ops->set_ap_chanwidth ||
2166 !(rdev->wiphy.features &
2167 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2168 result = -EBUSY;
2169 break;
2170 }
2171
2172 /* Only allow dynamic channel width changes */
2173 if (chandef.chan != wdev->preset_chandef.chan) {
2174 result = -EBUSY;
2175 break;
2176 }
2177 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2178 if (result)
2179 break;
2180 }
683b6d3b 2181 wdev->preset_chandef = chandef;
aa430da4
JB		 2182 result = 0;
2183 break;
cc1d2806 2184 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2185 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2186 break;
e8c9bd5b 2187 case NL80211_IFTYPE_MONITOR:
683b6d3b 2188 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2189 break;
aa430da4 2190 default:
e8c9bd5b 2191 result = -EINVAL;
f444de05 2192 }
f444de05
JB		 2193
2194 return result;
2195}
2196
2197static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2198{
4c476991
JB		 2199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2200 struct net_device *netdev = info->user_ptr[1];
f444de05 2201
e16821bc 2202 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2203}
2204
e8347eba
BJ		 2205static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2206{
43b19952
JB		 2207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2208 struct net_device *dev = info->user_ptr[1];
2209 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2210 const u8 *bssid;
e8347eba
BJ		 2211
2212 if (!info->attrs[NL80211_ATTR_MAC])
2213 return -EINVAL;
2214
43b19952
JB		 2215 if (netif_running(dev))
2216 return -EBUSY;
e8347eba 2217
43b19952
JB		 2218 if (!rdev->ops->set_wds_peer)
2219 return -EOPNOTSUPP;
e8347eba 2220
43b19952
JB		 2221 if (wdev->iftype != NL80211_IFTYPE_WDS)
2222 return -EOPNOTSUPP;
e8347eba
BJ		 2223
2224 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2225 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2226}
2227
55682965
JB		 2228static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2229{
2230 struct cfg80211_registered_device *rdev;
f444de05
JB		 2231 struct net_device *netdev = NULL;
2232 struct wireless_dev *wdev;
a1e567c8 2233 int result = 0, rem_txq_params = 0;
31888487 2234 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2235 u32 changed;
2236 u8 retry_short = 0, retry_long = 0;
2237 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2238 u8 coverage_class = 0;
55682965 2239
5fe231e8
JB		 2240 ASSERT_RTNL();
2241
f444de05
JB		 2242 /*
2243 * Try to find the wiphy and netdev. Normally this
2244 * function shouldn't need the netdev, but this is
2245 * done for backward compatibility -- previously
2246 * setting the channel was done per wiphy, but now
2247 * it is per netdev. Previous userland like hostapd
2248 * also passed a netdev to set_wiphy, so that it is
2249 * possible to let that go to the right netdev!
2250 */
4bbf4d56 2251
f444de05
JB		 2252 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2253 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2254
7f2b8562 2255 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2256 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2257 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2258 else
f444de05 2259 netdev = NULL;
4bbf4d56
JB		 2260 }
2261
f444de05 2262 if (!netdev) {
878d9ec7
JB		 2263 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2264 info->attrs);
5fe231e8 2265 if (IS_ERR(rdev))
4c476991 2266 return PTR_ERR(rdev);
f444de05
JB		 2267 wdev = NULL;
2268 netdev = NULL;
2269 result = 0;
71fe96bf 2270 } else
f444de05 2271 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2272
2273 /*
2274 * end workaround code, by now the rdev is available
2275 * and locked, and wdev may or may not be NULL.
2276 */
4bbf4d56
JB		 2277
2278 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2279 result = cfg80211_dev_rename(
2280 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2281
4bbf4d56 2282 if (result)
7f2b8562 2283 return result;
31888487
JM		 2284
2285 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2286 struct ieee80211_txq_params txq_params;
2287 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2288
7f2b8562
YX		 2289 if (!rdev->ops->set_txq_params)
2290 return -EOPNOTSUPP;
31888487 2291
7f2b8562
YX		 2292 if (!netdev)
2293 return -EINVAL;
f70f01c2 2294
133a3ff2 2295 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2296 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2297 return -EINVAL;
133a3ff2 2298
7f2b8562
YX		 2299 if (!netif_running(netdev))
2300 return -ENETDOWN;
2b5f8b0b 2301
31888487
JM		 2302 nla_for_each_nested(nl_txq_params,
2303 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2304 rem_txq_params) {
ae811e21
JB		 2305 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2306 nla_data(nl_txq_params),
2307 nla_len(nl_txq_params),
2308 txq_params_policy);
2309 if (result)
2310 return result;
31888487
JM		 2311 result = parse_txq_params(tb, &txq_params);
2312 if (result)
7f2b8562 2313 return result;
31888487 2314
e35e4d28
HG		 2315 result = rdev_set_txq_params(rdev, netdev,
2316 &txq_params);
31888487 2317 if (result)
7f2b8562 2318 return result;
31888487
JM		 2319 }
2320 }
55682965 2321
72bdcf34 2322 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2323 result = __nl80211_set_channel(
2324 rdev,
2325 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2326 info);
72bdcf34 2327 if (result)
7f2b8562 2328 return result;
72bdcf34
JM		 2329 }
2330
98d2ff8b 2331 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2332 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2333 enum nl80211_tx_power_setting type;
2334 int idx, mbm = 0;
2335
c8442118
JB		 2336 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2337 txp_wdev = NULL;
2338
7f2b8562
YX		 2339 if (!rdev->ops->set_tx_power)
2340 return -EOPNOTSUPP;
98d2ff8b
JO		 2341
2342 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2343 type = nla_get_u32(info->attrs[idx]);
2344
2345 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2346 (type != NL80211_TX_POWER_AUTOMATIC))
2347 return -EINVAL;
98d2ff8b
JO		 2348
2349 if (type != NL80211_TX_POWER_AUTOMATIC) {
2350 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2351 mbm = nla_get_u32(info->attrs[idx]);
2352 }
2353
c8442118 2354 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2355 if (result)
7f2b8562 2356 return result;
98d2ff8b
JO		 2357 }
2358
afe0cbf8
BR		 2359 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2360 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2361 u32 tx_ant, rx_ant;
7a087e74 2362
7f531e03
BR		 2363 if ((!rdev->wiphy.available_antennas_tx &&
2364 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2365 !rdev->ops->set_antenna)
2366 return -EOPNOTSUPP;
afe0cbf8
BR		 2367
2368 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2369 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2370
a7ffac95 2371 /* reject antenna configurations which don't match the
7f531e03
BR		 2372 * available antenna masks, except for the "all" mask */
2373 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2374 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2375 return -EINVAL;
a7ffac95 2376
7f531e03
BR		 2377 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2378 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2379
e35e4d28 2380 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2381 if (result)
7f2b8562 2382 return result;
afe0cbf8
BR		 2383 }
2384
b9a5f8ca
JM		 2385 changed = 0;
2386
2387 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2388 retry_short = nla_get_u8(
2389 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2390 if (retry_short == 0)
2391 return -EINVAL;
2392
b9a5f8ca
JM		 2393 changed |= WIPHY_PARAM_RETRY_SHORT;
2394 }
2395
2396 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2397 retry_long = nla_get_u8(
2398 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2399 if (retry_long == 0)
2400 return -EINVAL;
2401
b9a5f8ca
JM		 2402 changed |= WIPHY_PARAM_RETRY_LONG;
2403 }
2404
2405 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2406 frag_threshold = nla_get_u32(
2407 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2408 if (frag_threshold < 256)
2409 return -EINVAL;
2410
b9a5f8ca
JM		 2411 if (frag_threshold != (u32) -1) {
2412 /*
2413 * Fragments (apart from the last one) are required to
2414 * have even length. Make the fragmentation code
2415 * simpler by stripping LSB should someone try to use
2416 * odd threshold value.
2417 */
2418 frag_threshold &= ~0x1;
2419 }
2420 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2421 }
2422
2423 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2424 rts_threshold = nla_get_u32(
2425 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2426 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2427 }
2428
81077e82 2429 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2430 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2431 return -EINVAL;
2432
81077e82
LT		 2433 coverage_class = nla_get_u8(
2434 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2435 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2436 }
2437
3057dbfd
LB		 2438 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2439 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2440 return -EOPNOTSUPP;
2441
2442 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2443 }
2444
b9a5f8ca
JM		 2445 if (changed) {
2446 u8 old_retry_short, old_retry_long;
2447 u32 old_frag_threshold, old_rts_threshold;
81077e82 2448 u8 old_coverage_class;
b9a5f8ca 2449
7f2b8562
YX		 2450 if (!rdev->ops->set_wiphy_params)
2451 return -EOPNOTSUPP;
b9a5f8ca
JM		 2452
2453 old_retry_short = rdev->wiphy.retry_short;
2454 old_retry_long = rdev->wiphy.retry_long;
2455 old_frag_threshold = rdev->wiphy.frag_threshold;
2456 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2457 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2458
2459 if (changed & WIPHY_PARAM_RETRY_SHORT)
2460 rdev->wiphy.retry_short = retry_short;
2461 if (changed & WIPHY_PARAM_RETRY_LONG)
2462 rdev->wiphy.retry_long = retry_long;
2463 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2464 rdev->wiphy.frag_threshold = frag_threshold;
2465 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2466 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2467 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2468 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2469
e35e4d28 2470 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2471 if (result) {
2472 rdev->wiphy.retry_short = old_retry_short;
2473 rdev->wiphy.retry_long = old_retry_long;
2474 rdev->wiphy.frag_threshold = old_frag_threshold;
2475 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2476 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2477 return result;
b9a5f8ca
JM		 2478 }
2479 }
7f2b8562 2480 return 0;
55682965
JB		 2481}
2482
71bbc994
JB		 2483static inline u64 wdev_id(struct wireless_dev *wdev)
2484{
2485 return (u64)wdev->identifier |
f26cbf40 2486 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2487}
55682965 2488
683b6d3b 2489static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2490 const struct cfg80211_chan_def *chandef)
683b6d3b 2491{
601555cd
JB		 2492 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2493 return -EINVAL;
3d9d1d66 2494
683b6d3b
JB		 2495 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2496 chandef->chan->center_freq))
2497 return -ENOBUFS;
3d9d1d66
JB		 2498 switch (chandef->width) {
2499 case NL80211_CHAN_WIDTH_20_NOHT:
2500 case NL80211_CHAN_WIDTH_20:
2501 case NL80211_CHAN_WIDTH_40:
2502 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2503 cfg80211_get_chandef_type(chandef)))
2504 return -ENOBUFS;
2505 break;
2506 default:
2507 break;
2508 }
2509 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2510 return -ENOBUFS;
2511 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2512 return -ENOBUFS;
2513 if (chandef->center_freq2 &&
2514 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2515 return -ENOBUFS;
2516 return 0;
2517}
2518
15e47304 2519static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2520 struct cfg80211_registered_device *rdev,
8f894be2 2521 struct wireless_dev *wdev, bool removal)
55682965 2522{
72fb2abc 2523 struct net_device *dev = wdev->netdev;
8f894be2 2524 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2525 void *hdr;
2526
8f894be2
TB		 2527 if (removal)
2528 cmd = NL80211_CMD_DEL_INTERFACE;
2529
2530 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2531 if (!hdr)
2532 return -1;
2533
72fb2abc
JB		 2534 if (dev &&
2535 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2536 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2537 goto nla_put_failure;
2538
2539 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2540 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2541 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2542 NL80211_ATTR_PAD) ||
98104fde 2543 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2544 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2545 rdev->devlist_generation ^
2546 (cfg80211_rdev_list_generation << 2)))
2547 goto nla_put_failure;
f5ea9120 2548
5b7ccaf3 2549 if (rdev->ops->get_channel) {
683b6d3b
JB		 2550 int ret;
2551 struct cfg80211_chan_def chandef;
2552
2553 ret = rdev_get_channel(rdev, wdev, &chandef);
2554 if (ret == 0) {
2555 if (nl80211_send_chandef(msg, &chandef))
2556 goto nla_put_failure;
2557 }
d91df0e3
PF		 2558 }
2559
d55d0d59
RM		 2560 if (rdev->ops->get_tx_power) {
2561 int dbm, ret;
2562
2563 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2564 if (ret == 0 &&
2565 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2566 DBM_TO_MBM(dbm)))
2567 goto nla_put_failure;
2568 }
2569
b84e7a05
AQ		 2570 if (wdev->ssid_len) {
2571 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2572 goto nla_put_failure;
2573 }
2574
053c095a
JB		 2575 genlmsg_end(msg, hdr);
2576 return 0;
55682965
JB		 2577
2578 nla_put_failure:
bc3ed28c
TG		 2579 genlmsg_cancel(msg, hdr);
2580 return -EMSGSIZE;
55682965
JB		 2581}
2582
2583static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2584{
2585 int wp_idx = 0;
2586 int if_idx = 0;
2587 int wp_start = cb->args[0];
2588 int if_start = cb->args[1];
b7fb44da 2589 int filter_wiphy = -1;
f5ea9120 2590 struct cfg80211_registered_device *rdev;
55682965
JB		 2591 struct wireless_dev *wdev;
2592
5fe231e8 2593 rtnl_lock();
b7fb44da
DK		 2594 if (!cb->args[2]) {
2595 struct nl80211_dump_wiphy_state state = {
2596 .filter_wiphy = -1,
2597 };
2598 int ret;
2599
2600 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2601 if (ret)
2602 return ret;
2603
2604 filter_wiphy = state.filter_wiphy;
2605
2606 /*
2607 * if filtering, set cb->args[2] to +1 since 0 is the default
2608 * value needed to determine that parsing is necessary.
2609 */
2610 if (filter_wiphy >= 0)
2611 cb->args[2] = filter_wiphy + 1;
2612 else
2613 cb->args[2] = -1;
2614 } else if (cb->args[2] > 0) {
2615 filter_wiphy = cb->args[2] - 1;
2616 }
2617
f5ea9120
JB		 2618 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2619 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2620 continue;
bba95fef
JB		 2621 if (wp_idx < wp_start) {
2622 wp_idx++;
55682965 2623 continue;
bba95fef 2624 }
b7fb44da
DK		 2625
2626 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2627 continue;
2628
55682965
JB		 2629 if_idx = 0;
2630
53873f13 2631 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2632 if (if_idx < if_start) {
2633 if_idx++;
55682965 2634 continue;
bba95fef 2635 }
15e47304 2636 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2637 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2638 rdev, wdev, false) < 0) {
bba95fef
JB		 2639 goto out;
2640 }
2641 if_idx++;
55682965 2642 }
bba95fef
JB		 2643
2644 wp_idx++;
55682965 2645 }
bba95fef 2646 out:
5fe231e8 2647 rtnl_unlock();
55682965
JB		 2648
2649 cb->args[0] = wp_idx;
2650 cb->args[1] = if_idx;
2651
2652 return skb->len;
2653}
2654
2655static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2656{
2657 struct sk_buff *msg;
1b8ec87a 2658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2659 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2660
fd2120ca 2661 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2662 if (!msg)
4c476991 2663 return -ENOMEM;
55682965 2664
15e47304 2665 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2666 rdev, wdev, false) < 0) {
4c476991
JB		 2667 nlmsg_free(msg);
2668 return -ENOBUFS;
2669 }
55682965 2670
134e6375 2671 return genlmsg_reply(msg, info);
55682965
JB		 2672}
2673
66f7ac50
MW		 2674static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2675 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2676 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2677 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2678 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2679 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2680 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2681};
2682
2683static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2684{
2685 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2686 int flag;
2687
2688 *mntrflags = 0;
2689
2690 if (!nla)
2691 return -EINVAL;
2692
2693 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2694 nla, mntr_flags_policy))
2695 return -EINVAL;
2696
2697 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2698 if (flags[flag])
2699 *mntrflags |= (1<<flag);
2700
2701 return 0;
2702}
2703
9bc383de 2704static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2705 struct net_device *netdev, u8 use_4addr,
2706 enum nl80211_iftype iftype)
9bc383de 2707{
ad4bb6f8 2708 if (!use_4addr) {
f350a0a8 2709 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2710 return -EBUSY;
9bc383de 2711 return 0;
ad4bb6f8 2712 }
9bc383de
JB		 2713
2714 switch (iftype) {
2715 case NL80211_IFTYPE_AP_VLAN:
2716 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2717 return 0;
2718 break;
2719 case NL80211_IFTYPE_STATION:
2720 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2721 return 0;
2722 break;
2723 default:
2724 break;
2725 }
2726
2727 return -EOPNOTSUPP;
2728}
2729
55682965
JB		 2730static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2731{
4c476991 2732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2733 struct vif_params params;
e36d56b6 2734 int err;
04a773ad 2735 enum nl80211_iftype otype, ntype;
4c476991 2736 struct net_device *dev = info->user_ptr[1];
92ffe055 2737 u32 _flags, *flags = NULL;
ac7f9cfa 2738 bool change = false;
55682965 2739
2ec600d6
LCC		 2740 memset(&params, 0, sizeof(params));
2741
04a773ad 2742 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2743
723b038d 2744 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2745 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2746 if (otype != ntype)
ac7f9cfa 2747 change = true;
4c476991
JB		 2748 if (ntype > NL80211_IFTYPE_MAX)
2749 return -EINVAL;
723b038d
JB		 2750 }
2751
92ffe055 2752 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2753 struct wireless_dev *wdev = dev->ieee80211_ptr;
2754
4c476991
JB		 2755 if (ntype != NL80211_IFTYPE_MESH_POINT)
2756 return -EINVAL;
29cbe68c
JB		 2757 if (netif_running(dev))
2758 return -EBUSY;
2759
2760 wdev_lock(wdev);
2761 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2762 IEEE80211_MAX_MESH_ID_LEN);
2763 wdev->mesh_id_up_len =
2764 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2765 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2766 wdev->mesh_id_up_len);
2767 wdev_unlock(wdev);
2ec600d6
LCC		 2768 }
2769
8b787643
FF		 2770 if (info->attrs[NL80211_ATTR_4ADDR]) {
2771 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2772 change = true;
ad4bb6f8 2773 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2774 if (err)
4c476991 2775 return err;
8b787643
FF		 2776 } else {
2777 params.use_4addr = -1;
2778 }
2779
92ffe055 2780 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2781 if (ntype != NL80211_IFTYPE_MONITOR)
2782 return -EINVAL;
92ffe055
JB		 2783 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2784 &_flags);
ac7f9cfa 2785 if (err)
4c476991 2786 return err;
ac7f9cfa
JB		 2787
2788 flags = &_flags;
2789 change = true;
92ffe055 2790 }
3b85875a 2791
c6e6a0c8
AE		 2792 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2793 const u8 *mumimo_groups;
2794 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2795
2796 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2797 return -EOPNOTSUPP;
2798
2799 mumimo_groups =
2800 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2801
2802 /* bits 0 and 63 are reserved and must be zero */
2803 if ((mumimo_groups[0] & BIT(7)) ||
2804 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2805 return -EINVAL;
2806
2807 memcpy(params.vht_mumimo_groups, mumimo_groups,
2808 VHT_MUMIMO_GROUPS_DATA_LEN);
2809 change = true;
2810 }
2811
2812 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2813 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2814
2815 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2816 return -EOPNOTSUPP;
2817
2818 nla_memcpy(params.macaddr,
2819 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2820 ETH_ALEN);
2821 change = true;
2822 }
2823
18003297 2824 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2825 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2826 return -EOPNOTSUPP;
2827
ac7f9cfa 2828 if (change)
3d54d255 2829 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2830 else
2831 err = 0;
60719ffd 2832
9bc383de
JB		 2833 if (!err && params.use_4addr != -1)
2834 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2835
55682965
JB		 2836 return err;
2837}
2838
2839static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2840{
4c476991 2841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2842 struct vif_params params;
84efbb84 2843 struct wireless_dev *wdev;
896ff063 2844 struct sk_buff *msg;
55682965
JB		 2845 int err;
2846 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2847 u32 flags;
55682965 2848
78f22b6a
JB		 2849 /* to avoid failing a new interface creation due to pending removal */
2850 cfg80211_destroy_ifaces(rdev);
2851
2ec600d6
LCC		 2852 memset(&params, 0, sizeof(params));
2853
55682965
JB		 2854 if (!info->attrs[NL80211_ATTR_IFNAME])
2855 return -EINVAL;
2856
2857 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2858 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2859 if (type > NL80211_IFTYPE_MAX)
2860 return -EINVAL;
2861 }
2862
79c97e97 2863 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2864 !(rdev->wiphy.interface_modes & (1 << type)))
2865 return -EOPNOTSUPP;
55682965 2866
cb3b7d87 2867 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2868 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2869 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2870 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2871 ETH_ALEN);
2872 if (!is_valid_ether_addr(params.macaddr))
2873 return -EADDRNOTAVAIL;
2874 }
2875
9bc383de 2876 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2877 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2878 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2879 if (err)
4c476991 2880 return err;
9bc383de 2881 }
8b787643 2882
66f7ac50
MW		 2883 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2884 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2885 &flags);
e057d3c3 2886
18003297 2887 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2888 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2889 return -EOPNOTSUPP;
2890
a18c7192
JB		 2891 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2892 if (!msg)
2893 return -ENOMEM;
2894
e35e4d28
HG		 2895 wdev = rdev_add_virtual_intf(rdev,
2896 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2897 NET_NAME_USER, type, err ? NULL : &flags,
2898 &params);
d687cbb7
RM		 2899 if (WARN_ON(!wdev)) {
2900 nlmsg_free(msg);
2901 return -EPROTO;
2902 } else if (IS_ERR(wdev)) {
1c90f9d4 2903 nlmsg_free(msg);
84efbb84 2904 return PTR_ERR(wdev);
1c90f9d4 2905 }
2ec600d6 2906
18e5ca65 2907 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2908 wdev->owner_nlportid = info->snd_portid;
2909
98104fde
JB		 2910 switch (type) {
2911 case NL80211_IFTYPE_MESH_POINT:
2912 if (!info->attrs[NL80211_ATTR_MESH_ID])
2913 break;
29cbe68c
JB		 2914 wdev_lock(wdev);
2915 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2916 IEEE80211_MAX_MESH_ID_LEN);
2917 wdev->mesh_id_up_len =
2918 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2919 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2920 wdev->mesh_id_up_len);
2921 wdev_unlock(wdev);
98104fde 2922 break;
cb3b7d87 2923 case NL80211_IFTYPE_NAN:
98104fde
JB		 2924 case NL80211_IFTYPE_P2P_DEVICE:
2925 /*
cb3b7d87 2926 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 2927 * through the netdev notifier and must be added here
2928 */
2929 mutex_init(&wdev->mtx);
2930 INIT_LIST_HEAD(&wdev->event_list);
2931 spin_lock_init(&wdev->event_lock);
2932 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2933 spin_lock_init(&wdev->mgmt_registrations_lock);
2934
98104fde 2935 wdev->identifier = ++rdev->wdev_id;
53873f13 2936 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2937 rdev->devlist_generation++;
98104fde
JB		 2938 break;
2939 default:
2940 break;
29cbe68c
JB		 2941 }
2942
15e47304 2943 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2944 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2945 nlmsg_free(msg);
2946 return -ENOBUFS;
2947 }
2948
896ff063
DK		 2949 /*
2950 * For wdevs which have no associated netdev object (e.g. of type
2951 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2952 * For all other types, the event will be generated from the
2953 * netdev notifier
2954 */
2955 if (!wdev->netdev)
2956 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2957
1c90f9d4 2958 return genlmsg_reply(msg, info);
55682965
JB		 2959}
2960
2961static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2962{
4c476991 2963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2964 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2965
4c476991
JB		 2966 if (!rdev->ops->del_virtual_intf)
2967 return -EOPNOTSUPP;
55682965 2968
84efbb84
JB		 2969 /*
2970 * If we remove a wireless device without a netdev then clear
2971 * user_ptr[1] so that nl80211_post_doit won't dereference it
2972 * to check if it needs to do dev_put(). Otherwise it crashes
2973 * since the wdev has been freed, unlike with a netdev where
2974 * we need the dev_put() for the netdev to really be freed.
2975 */
2976 if (!wdev->netdev)
2977 info->user_ptr[1] = NULL;
2978
7f8ed01e 2979 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2980}
2981
1d9d9213
SW		 2982static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2983{
2984 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2985 struct net_device *dev = info->user_ptr[1];
2986 u16 noack_map;
2987
2988 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2989 return -EINVAL;
2990
2991 if (!rdev->ops->set_noack_map)
2992 return -EOPNOTSUPP;
2993
2994 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2995
e35e4d28 2996 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2997}
2998
41ade00f
JB		 2999struct get_key_cookie {
3000 struct sk_buff *msg;
3001 int error;
b9454e83 3002 int idx;
41ade00f
JB		 3003};
3004
3005static void get_key_callback(void *c, struct key_params *params)
3006{
b9454e83 3007 struct nlattr *key;
41ade00f
JB		 3008 struct get_key_cookie *cookie = c;
3009
9360ffd1
DM		 3010 if ((params->key &&
3011 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3012 params->key_len, params->key)) ||
3013 (params->seq &&
3014 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3015 params->seq_len, params->seq)) ||
3016 (params->cipher &&
3017 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3018 params->cipher)))
3019 goto nla_put_failure;
41ade00f 3020
b9454e83
JB		 3021 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3022 if (!key)
3023 goto nla_put_failure;
3024
9360ffd1
DM		 3025 if ((params->key &&
3026 nla_put(cookie->msg, NL80211_KEY_DATA,
3027 params->key_len, params->key)) ||
3028 (params->seq &&
3029 nla_put(cookie->msg, NL80211_KEY_SEQ,
3030 params->seq_len, params->seq)) ||
3031 (params->cipher &&
3032 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3033 params->cipher)))
3034 goto nla_put_failure;
b9454e83 3035
9360ffd1
DM		 3036 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3037 goto nla_put_failure;
b9454e83
JB		 3038
3039 nla_nest_end(cookie->msg, key);
3040
41ade00f
JB		 3041 return;
3042 nla_put_failure:
3043 cookie->error = 1;
3044}
3045
3046static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3047{
4c476991 3048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3049 int err;
4c476991 3050 struct net_device *dev = info->user_ptr[1];
41ade00f 3051 u8 key_idx = 0;
e31b8213
JB		 3052 const u8 *mac_addr = NULL;
3053 bool pairwise;
41ade00f
JB		 3054 struct get_key_cookie cookie = {
3055 .error = 0,
3056 };
3057 void *hdr;
3058 struct sk_buff *msg;
3059
3060 if (info->attrs[NL80211_ATTR_KEY_IDX])
3061 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3062
3cfcf6ac 3063 if (key_idx > 5)
41ade00f
JB		 3064 return -EINVAL;
3065
3066 if (info->attrs[NL80211_ATTR_MAC])
3067 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3068
e31b8213
JB		 3069 pairwise = !!mac_addr;
3070 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3071 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3072
e31b8213
JB		 3073 if (kt >= NUM_NL80211_KEYTYPES)
3074 return -EINVAL;
3075 if (kt != NL80211_KEYTYPE_GROUP &&
3076 kt != NL80211_KEYTYPE_PAIRWISE)
3077 return -EINVAL;
3078 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3079 }
3080
4c476991
JB		 3081 if (!rdev->ops->get_key)
3082 return -EOPNOTSUPP;
41ade00f 3083
0fa7b391
JB		 3084 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3085 return -ENOENT;
3086
fd2120ca 3087 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3088 if (!msg)
3089 return -ENOMEM;
41ade00f 3090
15e47304 3091 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3092 NL80211_CMD_NEW_KEY);
cb35fba3 3093 if (!hdr)
9fe271af 3094 goto nla_put_failure;
41ade00f
JB		 3095
3096 cookie.msg = msg;
b9454e83 3097 cookie.idx = key_idx;
41ade00f 3098
9360ffd1
DM		 3099 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3100 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3101 goto nla_put_failure;
3102 if (mac_addr &&
3103 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3104 goto nla_put_failure;
41ade00f 3105
e35e4d28
HG		 3106 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3107 get_key_callback);
41ade00f
JB		 3108
3109 if (err)
6c95e2a2 3110 goto free_msg;
41ade00f
JB		 3111
3112 if (cookie.error)
3113 goto nla_put_failure;
3114
3115 genlmsg_end(msg, hdr);
4c476991 3116 return genlmsg_reply(msg, info);
41ade00f
JB		 3117
3118 nla_put_failure:
3119 err = -ENOBUFS;
6c95e2a2 3120 free_msg:
41ade00f 3121 nlmsg_free(msg);
41ade00f
JB		 3122 return err;
3123}
3124
3125static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3126{
4c476991 3127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3128 struct key_parse key;
41ade00f 3129 int err;
4c476991 3130 struct net_device *dev = info->user_ptr[1];
41ade00f 3131
b9454e83
JB		 3132 err = nl80211_parse_key(info, &key);
3133 if (err)
3134 return err;
41ade00f 3135
b9454e83 3136 if (key.idx < 0)
41ade00f
JB		 3137 return -EINVAL;
3138
b9454e83
JB		 3139 /* only support setting default key */
3140 if (!key.def && !key.defmgmt)
41ade00f
JB		 3141 return -EINVAL;
3142
dbd2fd65 3143 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3144
dbd2fd65
JB		 3145 if (key.def) {
3146 if (!rdev->ops->set_default_key) {
3147 err = -EOPNOTSUPP;
3148 goto out;
3149 }
41ade00f 3150
dbd2fd65
JB		 3151 err = nl80211_key_allowed(dev->ieee80211_ptr);
3152 if (err)
3153 goto out;
3154
e35e4d28 3155 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3156 key.def_uni, key.def_multi);
3157
3158 if (err)
3159 goto out;
fffd0934 3160
3d23e349 3161#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3162 dev->ieee80211_ptr->wext.default_key = key.idx;
3163#endif
3164 } else {
3165 if (key.def_uni || !key.def_multi) {
3166 err = -EINVAL;
3167 goto out;
3168 }
3169
3170 if (!rdev->ops->set_default_mgmt_key) {
3171 err = -EOPNOTSUPP;
3172 goto out;
3173 }
3174
3175 err = nl80211_key_allowed(dev->ieee80211_ptr);
3176 if (err)
3177 goto out;
3178
e35e4d28 3179 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3180 if (err)
3181 goto out;
3182
3183#ifdef CONFIG_CFG80211_WEXT
3184 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3185#endif
dbd2fd65
JB		 3186 }
3187
3188 out:
fffd0934 3189 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3190
41ade00f
JB		 3191 return err;
3192}
3193
3194static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3195{
4c476991 3196 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3197 int err;
4c476991 3198 struct net_device *dev = info->user_ptr[1];
b9454e83 3199 struct key_parse key;
e31b8213 3200 const u8 *mac_addr = NULL;
41ade00f 3201
b9454e83
JB		 3202 err = nl80211_parse_key(info, &key);
3203 if (err)
3204 return err;
41ade00f 3205
b9454e83 3206 if (!key.p.key)
41ade00f
JB		 3207 return -EINVAL;
3208
41ade00f
JB		 3209 if (info->attrs[NL80211_ATTR_MAC])
3210 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3211
e31b8213
JB		 3212 if (key.type == -1) {
3213 if (mac_addr)
3214 key.type = NL80211_KEYTYPE_PAIRWISE;
3215 else
3216 key.type = NL80211_KEYTYPE_GROUP;
3217 }
3218
3219 /* for now */
3220 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3221 key.type != NL80211_KEYTYPE_GROUP)
3222 return -EINVAL;
3223
4c476991
JB		 3224 if (!rdev->ops->add_key)
3225 return -EOPNOTSUPP;
25e47c18 3226
e31b8213
JB		 3227 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3228 key.type == NL80211_KEYTYPE_PAIRWISE,
3229 mac_addr))
4c476991 3230 return -EINVAL;
41ade00f 3231
fffd0934
JB		 3232 wdev_lock(dev->ieee80211_ptr);
3233 err = nl80211_key_allowed(dev->ieee80211_ptr);
3234 if (!err)
e35e4d28
HG		 3235 err = rdev_add_key(rdev, dev, key.idx,
3236 key.type == NL80211_KEYTYPE_PAIRWISE,
3237 mac_addr, &key.p);
fffd0934 3238 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3239
41ade00f
JB		 3240 return err;
3241}
3242
3243static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3244{
4c476991 3245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3246 int err;
4c476991 3247 struct net_device *dev = info->user_ptr[1];
41ade00f 3248 u8 *mac_addr = NULL;
b9454e83 3249 struct key_parse key;
41ade00f 3250
b9454e83
JB		 3251 err = nl80211_parse_key(info, &key);
3252 if (err)
3253 return err;
41ade00f
JB		 3254
3255 if (info->attrs[NL80211_ATTR_MAC])
3256 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3257
e31b8213
JB		 3258 if (key.type == -1) {
3259 if (mac_addr)
3260 key.type = NL80211_KEYTYPE_PAIRWISE;
3261 else
3262 key.type = NL80211_KEYTYPE_GROUP;
3263 }
3264
3265 /* for now */
3266 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3267 key.type != NL80211_KEYTYPE_GROUP)
3268 return -EINVAL;
3269
4c476991
JB		 3270 if (!rdev->ops->del_key)
3271 return -EOPNOTSUPP;
41ade00f 3272
fffd0934
JB		 3273 wdev_lock(dev->ieee80211_ptr);
3274 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3275
0fa7b391 3276 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3277 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3278 err = -ENOENT;
3279
fffd0934 3280 if (!err)
e35e4d28
HG		 3281 err = rdev_del_key(rdev, dev, key.idx,
3282 key.type == NL80211_KEYTYPE_PAIRWISE,
3283 mac_addr);
41ade00f 3284
3d23e349 3285#ifdef CONFIG_CFG80211_WEXT
08645126 3286 if (!err) {
b9454e83 3287 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3288 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3289 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3290 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3291 }
3292#endif
fffd0934 3293 wdev_unlock(dev->ieee80211_ptr);
08645126 3294
41ade00f
JB		 3295 return err;
3296}
3297
77765eaf
VT		 3298/* This function returns an error or the number of nested attributes */
3299static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3300{
3301 struct nlattr *attr;
3302 int n_entries = 0, tmp;
3303
3304 nla_for_each_nested(attr, nl_attr, tmp) {
3305 if (nla_len(attr) != ETH_ALEN)
3306 return -EINVAL;
3307
3308 n_entries++;
3309 }
3310
3311 return n_entries;
3312}
3313
3314/*
3315 * This function parses ACL information and allocates memory for ACL data.
3316 * On successful return, the calling function is responsible to free the
3317 * ACL buffer returned by this function.
3318 */
3319static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3320 struct genl_info *info)
3321{
3322 enum nl80211_acl_policy acl_policy;
3323 struct nlattr *attr;
3324 struct cfg80211_acl_data *acl;
3325 int i = 0, n_entries, tmp;
3326
3327 if (!wiphy->max_acl_mac_addrs)
3328 return ERR_PTR(-EOPNOTSUPP);
3329
3330 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3331 return ERR_PTR(-EINVAL);
3332
3333 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3334 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3335 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3336 return ERR_PTR(-EINVAL);
3337
3338 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3339 return ERR_PTR(-EINVAL);
3340
3341 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3342 if (n_entries < 0)
3343 return ERR_PTR(n_entries);
3344
3345 if (n_entries > wiphy->max_acl_mac_addrs)
3346 return ERR_PTR(-ENOTSUPP);
3347
3348 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3349 GFP_KERNEL);
3350 if (!acl)
3351 return ERR_PTR(-ENOMEM);
3352
3353 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3354 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3355 i++;
3356 }
3357
3358 acl->n_acl_entries = n_entries;
3359 acl->acl_policy = acl_policy;
3360
3361 return acl;
3362}
3363
3364static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3365{
3366 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3367 struct net_device *dev = info->user_ptr[1];
3368 struct cfg80211_acl_data *acl;
3369 int err;
3370
3371 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3372 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3373 return -EOPNOTSUPP;
3374
3375 if (!dev->ieee80211_ptr->beacon_interval)
3376 return -EINVAL;
3377
3378 acl = parse_acl_data(&rdev->wiphy, info);
3379 if (IS_ERR(acl))
3380 return PTR_ERR(acl);
3381
3382 err = rdev_set_mac_acl(rdev, dev, acl);
3383
3384 kfree(acl);
3385
3386 return err;
3387}
3388
a7c7fbff
PK		 3389static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3390 u8 *rates, u8 rates_len)
3391{
3392 u8 i;
3393 u32 mask = 0;
3394
3395 for (i = 0; i < rates_len; i++) {
3396 int rate = (rates[i] & 0x7f) * 5;
3397 int ridx;
3398
3399 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3400 struct ieee80211_rate *srate =
3401 &sband->bitrates[ridx];
3402 if (rate == srate->bitrate) {
3403 mask |= 1 << ridx;
3404 break;
3405 }
3406 }
3407 if (ridx == sband->n_bitrates)
3408 return 0; /* rate not found */
3409 }
3410
3411 return mask;
3412}
3413
3414static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3415 u8 *rates, u8 rates_len,
3416 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3417{
3418 u8 i;
3419
3420 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3421
3422 for (i = 0; i < rates_len; i++) {
3423 int ridx, rbit;
3424
3425 ridx = rates[i] / 8;
3426 rbit = BIT(rates[i] % 8);
3427
3428 /* check validity */
3429 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3430 return false;
3431
3432 /* check availability */
3433 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3434 mcs[ridx] |= rbit;
3435 else
3436 return false;
3437 }
3438
3439 return true;
3440}
3441
3442static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3443{
3444 u16 mcs_mask = 0;
3445
3446 switch (vht_mcs_map) {
3447 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3448 break;
3449 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3450 mcs_mask = 0x00FF;
3451 break;
3452 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3453 mcs_mask = 0x01FF;
3454 break;
3455 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3456 mcs_mask = 0x03FF;
3457 break;
3458 default:
3459 break;
3460 }
3461
3462 return mcs_mask;
3463}
3464
3465static void vht_build_mcs_mask(u16 vht_mcs_map,
3466 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3467{
3468 u8 nss;
3469
3470 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3471 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3472 vht_mcs_map >>= 2;
3473 }
3474}
3475
3476static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3477 struct nl80211_txrate_vht *txrate,
3478 u16 mcs[NL80211_VHT_NSS_MAX])
3479{
3480 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3481 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3482 u8 i;
3483
3484 if (!sband->vht_cap.vht_supported)
3485 return false;
3486
3487 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3488
3489 /* Build vht_mcs_mask from VHT capabilities */
3490 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3491
3492 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3493 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3494 mcs[i] = txrate->mcs[i];
3495 else
3496 return false;
3497 }
3498
3499 return true;
3500}
3501
3502static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3503 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3504 .len = NL80211_MAX_SUPP_RATES },
3505 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3506 .len = NL80211_MAX_SUPP_HT_RATES },
3507 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3508 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3509};
3510
3511static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3512 struct cfg80211_bitrate_mask *mask)
3513{
3514 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3515 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3516 int rem, i;
3517 struct nlattr *tx_rates;
3518 struct ieee80211_supported_band *sband;
3519 u16 vht_tx_mcs_map;
3520
3521 memset(mask, 0, sizeof(*mask));
3522 /* Default to all rates enabled */
3523 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3524 sband = rdev->wiphy.bands[i];
3525
3526 if (!sband)
3527 continue;
3528
3529 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3530 memcpy(mask->control[i].ht_mcs,
3531 sband->ht_cap.mcs.rx_mask,
3532 sizeof(mask->control[i].ht_mcs));
3533
3534 if (!sband->vht_cap.vht_supported)
3535 continue;
3536
3537 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3538 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3539 }
3540
3541 /* if no rates are given set it back to the defaults */
3542 if (!info->attrs[NL80211_ATTR_TX_RATES])
3543 goto out;
3544
3545 /* The nested attribute uses enum nl80211_band as the index. This maps
3546 * directly to the enum nl80211_band values used in cfg80211.
3547 */
3548 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3549 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3550 enum nl80211_band band = nla_type(tx_rates);
3551 int err;
3552
3553 if (band < 0 || band >= NUM_NL80211_BANDS)
3554 return -EINVAL;
3555 sband = rdev->wiphy.bands[band];
3556 if (sband == NULL)
3557 return -EINVAL;
3558 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
3559 nla_len(tx_rates), nl80211_txattr_policy);
3560 if (err)
3561 return err;
3562 if (tb[NL80211_TXRATE_LEGACY]) {
3563 mask->control[band].legacy = rateset_to_mask(
3564 sband,
3565 nla_data(tb[NL80211_TXRATE_LEGACY]),
3566 nla_len(tb[NL80211_TXRATE_LEGACY]));
3567 if ((mask->control[band].legacy == 0) &&
3568 nla_len(tb[NL80211_TXRATE_LEGACY]))
3569 return -EINVAL;
3570 }
3571 if (tb[NL80211_TXRATE_HT]) {
3572 if (!ht_rateset_to_mask(
3573 sband,
3574 nla_data(tb[NL80211_TXRATE_HT]),
3575 nla_len(tb[NL80211_TXRATE_HT]),
3576 mask->control[band].ht_mcs))
3577 return -EINVAL;
3578 }
3579 if (tb[NL80211_TXRATE_VHT]) {
3580 if (!vht_set_mcs_mask(
3581 sband,
3582 nla_data(tb[NL80211_TXRATE_VHT]),
3583 mask->control[band].vht_mcs))
3584 return -EINVAL;
3585 }
3586 if (tb[NL80211_TXRATE_GI]) {
3587 mask->control[band].gi =
3588 nla_get_u8(tb[NL80211_TXRATE_GI]);
3589 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3590 return -EINVAL;
3591 }
3592
3593 if (mask->control[band].legacy == 0) {
3594 /* don't allow empty legacy rates if HT or VHT
3595 * are not even supported.
3596 */
3597 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3598 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3599 return -EINVAL;
3600
3601 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3602 if (mask->control[band].ht_mcs[i])
3603 goto out;
3604
3605 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3606 if (mask->control[band].vht_mcs[i])
3607 goto out;
3608
3609 /* legacy and mcs rates may not be both empty */
3610 return -EINVAL;
3611 }
3612 }
3613
3614out:
3615 return 0;
3616}
3617
8564e382
JB		 3618static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3619 enum nl80211_band band,
3620 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3621{
8564e382
JB		 3622 u32 count_ht, count_vht, i;
3623 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3624
3625 /* Allow only one rate */
3626 if (hweight32(rate) > 1)
3627 return -EINVAL;
3628
3629 count_ht = 0;
3630 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3631 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3632 return -EINVAL;
8564e382 3633 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3634 count_ht++;
3635 if (count_ht > 1)
3636 return -EINVAL;
3637 }
3638 if (count_ht && rate)
3639 return -EINVAL;
3640 }
3641
3642 count_vht = 0;
3643 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3644 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3645 return -EINVAL;
8564e382 3646 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3647 count_vht++;
3648 if (count_vht > 1)
3649 return -EINVAL;
3650 }
3651 if (count_vht && rate)
3652 return -EINVAL;
3653 }
3654
3655 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3656 return -EINVAL;
3657
8564e382
JB		 3658 if (rate &&
3659 !wiphy_ext_feature_isset(&rdev->wiphy,
3660 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3661 return -EINVAL;
3662 if (count_ht &&
3663 !wiphy_ext_feature_isset(&rdev->wiphy,
3664 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3665 return -EINVAL;
3666 if (count_vht &&
3667 !wiphy_ext_feature_isset(&rdev->wiphy,
3668 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3669 return -EINVAL;
3670
a7c7fbff
PK		 3671 return 0;
3672}
3673
a1193be8 3674static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3675 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3676{
8860020e 3677 bool haveinfo = false;
ed1b6cc7 3678
a1193be8
SW		 3679 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3680 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3681 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3682 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3683 return -EINVAL;
3684
8860020e 3685 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3686
a1193be8
SW		 3687 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3688 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3689 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3690 if (!bcn->head_len)
3691 return -EINVAL;
3692 haveinfo = true;
ed1b6cc7
JB		 3693 }
3694
a1193be8
SW		 3695 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3696 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3697 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3698 haveinfo = true;
ed1b6cc7
JB		 3699 }
3700
4c476991
JB		 3701 if (!haveinfo)
3702 return -EINVAL;
3b85875a 3703
a1193be8
SW		 3704 if (attrs[NL80211_ATTR_IE]) {
3705 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3706 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3707 }
3708
a1193be8 3709 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3710 bcn->proberesp_ies =
a1193be8 3711 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3712 bcn->proberesp_ies_len =
a1193be8 3713 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3714 }
3715
a1193be8 3716 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3717 bcn->assocresp_ies =
a1193be8 3718 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3719 bcn->assocresp_ies_len =
a1193be8 3720 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3721 }
3722
a1193be8
SW		 3723 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3724 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3725 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3726 }
3727
8860020e
JB		 3728 return 0;
3729}
3730
46c1dd0c
FF		 3731static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3732 struct cfg80211_ap_settings *params)
3733{
3734 struct wireless_dev *wdev;
3735 bool ret = false;
3736
53873f13 3737 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3738 if (wdev->iftype != NL80211_IFTYPE_AP &&
3739 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3740 continue;
3741
683b6d3b 3742 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3743 continue;
3744
683b6d3b 3745 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3746 ret = true;
3747 break;
3748 }
3749
46c1dd0c
FF		 3750 return ret;
3751}
3752
e39e5b5e
JM		 3753static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3754 enum nl80211_auth_type auth_type,
3755 enum nl80211_commands cmd)
3756{
3757 if (auth_type > NL80211_AUTHTYPE_MAX)
3758 return false;
3759
3760 switch (cmd) {
3761 case NL80211_CMD_AUTHENTICATE:
3762 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3763 auth_type == NL80211_AUTHTYPE_SAE)
3764 return false;
3765 return true;
3766 case NL80211_CMD_CONNECT:
3767 case NL80211_CMD_START_AP:
3768 /* SAE not supported yet */
3769 if (auth_type == NL80211_AUTHTYPE_SAE)
3770 return false;
3771 return true;
3772 default:
3773 return false;
3774 }
3775}
3776
8860020e
JB		 3777static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3778{
3779 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3780 struct net_device *dev = info->user_ptr[1];
3781 struct wireless_dev *wdev = dev->ieee80211_ptr;
3782 struct cfg80211_ap_settings params;
3783 int err;
3784
3785 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3786 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3787 return -EOPNOTSUPP;
3788
3789 if (!rdev->ops->start_ap)
3790 return -EOPNOTSUPP;
3791
3792 if (wdev->beacon_interval)
3793 return -EALREADY;
3794
3795 memset(&params, 0, sizeof(params));
3796
3797 /* these are required for START_AP */
3798 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3799 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3800 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3801 return -EINVAL;
3802
a1193be8 3803 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3804 if (err)
3805 return err;
3806
3807 params.beacon_interval =
3808 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3809 params.dtim_period =
3810 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3811
0c317a02
PK		 3812 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3813 params.beacon_interval);
8860020e
JB		 3814 if (err)
3815 return err;
3816
3817 /*
3818 * In theory, some of these attributes should be required here
3819 * but since they were not used when the command was originally
3820 * added, keep them optional for old user space programs to let
3821 * them continue to work with drivers that do not need the
3822 * additional information -- drivers must check!
3823 */
3824 if (info->attrs[NL80211_ATTR_SSID]) {
3825 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3826 params.ssid_len =
3827 nla_len(info->attrs[NL80211_ATTR_SSID]);
3828 if (params.ssid_len == 0 ||
3829 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3830 return -EINVAL;
3831 }
3832
3833 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3834 params.hidden_ssid = nla_get_u32(
3835 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3836 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3837 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3838 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3839 return -EINVAL;
3840 }
3841
3842 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3843
3844 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3845 params.auth_type = nla_get_u32(
3846 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3847 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3848 NL80211_CMD_START_AP))
8860020e
JB		 3849 return -EINVAL;
3850 } else
3851 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3852
3853 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3854 NL80211_MAX_NR_CIPHER_SUITES);
3855 if (err)
3856 return err;
3857
1b658f11
VT		 3858 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3859 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3860 return -EOPNOTSUPP;
3861 params.inactivity_timeout = nla_get_u16(
3862 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3863 }
3864
53cabad7
JB		 3865 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3866 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3867 return -EINVAL;
3868 params.p2p_ctwindow =
3869 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3870 if (params.p2p_ctwindow > 127)
3871 return -EINVAL;
3872 if (params.p2p_ctwindow != 0 &&
3873 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3874 return -EINVAL;
3875 }
3876
3877 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3878 u8 tmp;
3879
3880 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3881 return -EINVAL;
3882 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3883 if (tmp > 1)
3884 return -EINVAL;
3885 params.p2p_opp_ps = tmp;
3886 if (params.p2p_opp_ps != 0 &&
3887 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3888 return -EINVAL;
3889 }
3890
aa430da4 3891 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3892 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3893 if (err)
3894 return err;
3895 } else if (wdev->preset_chandef.chan) {
3896 params.chandef = wdev->preset_chandef;
46c1dd0c 3897 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3898 return -EINVAL;
3899
923b352f
AN		 3900 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3901 wdev->iftype))
aa430da4
JB		 3902 return -EINVAL;
3903
a7c7fbff
PK		 3904 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3905 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
3906 if (err)
3907 return err;
3908
8564e382
JB		 3909 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3910 &params.beacon_rate);
a7c7fbff
PK		 3911 if (err)
3912 return err;
3913 }
3914
18998c38
EP		 3915 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3916 params.smps_mode =
3917 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3918 switch (params.smps_mode) {
3919 case NL80211_SMPS_OFF:
3920 break;
3921 case NL80211_SMPS_STATIC:
3922 if (!(rdev->wiphy.features &
3923 NL80211_FEATURE_STATIC_SMPS))
3924 return -EINVAL;
3925 break;
3926 case NL80211_SMPS_DYNAMIC:
3927 if (!(rdev->wiphy.features &
3928 NL80211_FEATURE_DYNAMIC_SMPS))
3929 return -EINVAL;
3930 break;
3931 default:
3932 return -EINVAL;
3933 }
3934 } else {
3935 params.smps_mode = NL80211_SMPS_OFF;
3936 }
3937
6e8ef842
PK		 3938 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3939 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3940 return -EOPNOTSUPP;
3941
4baf6bea
OO		 3942 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3943 params.acl = parse_acl_data(&rdev->wiphy, info);
3944 if (IS_ERR(params.acl))
3945 return PTR_ERR(params.acl);
3946 }
3947
c56589ed 3948 wdev_lock(wdev);
e35e4d28 3949 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3950 if (!err) {
683b6d3b 3951 wdev->preset_chandef = params.chandef;
8860020e 3952 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3953 wdev->chandef = params.chandef;
06e191e2
AQ		 3954 wdev->ssid_len = params.ssid_len;
3955 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3956 }
c56589ed 3957 wdev_unlock(wdev);
77765eaf
VT		 3958
3959 kfree(params.acl);
3960
56d1893d 3961 return err;
ed1b6cc7
JB		 3962}
3963
8860020e
JB		 3964static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3965{
3966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3967 struct net_device *dev = info->user_ptr[1];
3968 struct wireless_dev *wdev = dev->ieee80211_ptr;
3969 struct cfg80211_beacon_data params;
3970 int err;
3971
3972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3974 return -EOPNOTSUPP;
3975
3976 if (!rdev->ops->change_beacon)
3977 return -EOPNOTSUPP;
3978
3979 if (!wdev->beacon_interval)
3980 return -EINVAL;
3981
a1193be8 3982 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3983 if (err)
3984 return err;
3985
c56589ed
SW		 3986 wdev_lock(wdev);
3987 err = rdev_change_beacon(rdev, dev, &params);
3988 wdev_unlock(wdev);
3989
3990 return err;
8860020e
JB		 3991}
3992
3993static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3994{
4c476991
JB		 3995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3996 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3997
7c8d5e03 3998 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3999}
4000
5727ef1b
JB		 4001static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4002 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4003 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4004 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 4005 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 4006 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 4007 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 4008};
4009
eccb8e8f 4010static int parse_station_flags(struct genl_info *info,
bdd3ae3d 4011 enum nl80211_iftype iftype,
eccb8e8f 4012 struct station_parameters *params)
5727ef1b
JB		 4013{
4014 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 4015 struct nlattr *nla;
5727ef1b
JB		 4016 int flag;
4017
eccb8e8f
JB		 4018 /*
4019 * Try parsing the new attribute first so userspace
4020 * can specify both for older kernels.
4021 */
4022 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4023 if (nla) {
4024 struct nl80211_sta_flag_update *sta_flags;
4025
4026 sta_flags = nla_data(nla);
4027 params->sta_flags_mask = sta_flags->mask;
4028 params->sta_flags_set = sta_flags->set;
77ee7c89 4029 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 4030 if ((params->sta_flags_mask |
4031 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4032 return -EINVAL;
4033 return 0;
4034 }
4035
4036 /* if present, parse the old attribute */
5727ef1b 4037
eccb8e8f 4038 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 4039 if (!nla)
4040 return 0;
4041
4042 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
4043 nla, sta_flags_policy))
4044 return -EINVAL;
4045
bdd3ae3d
JB		 4046 /*
4047 * Only allow certain flags for interface types so that
4048 * other attributes are silently ignored. Remember that
4049 * this is backward compatibility code with old userspace
4050 * and shouldn't be hit in other cases anyway.
4051 */
4052 switch (iftype) {
4053 case NL80211_IFTYPE_AP:
4054 case NL80211_IFTYPE_AP_VLAN:
4055 case NL80211_IFTYPE_P2P_GO:
4056 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4057 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4058 BIT(NL80211_STA_FLAG_WME) |
4059 BIT(NL80211_STA_FLAG_MFP);
4060 break;
4061 case NL80211_IFTYPE_P2P_CLIENT:
4062 case NL80211_IFTYPE_STATION:
4063 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4064 BIT(NL80211_STA_FLAG_TDLS_PEER);
4065 break;
4066 case NL80211_IFTYPE_MESH_POINT:
4067 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4068 BIT(NL80211_STA_FLAG_MFP) |
4069 BIT(NL80211_STA_FLAG_AUTHORIZED);
4070 default:
4071 return -EINVAL;
4072 }
5727ef1b 4073
3383b5a6
JB		 4074 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4075 if (flags[flag]) {
eccb8e8f 4076 params->sta_flags_set |= (1<<flag);
5727ef1b 4077
3383b5a6
JB		 4078 /* no longer support new API additions in old API */
4079 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4080 return -EINVAL;
4081 }
4082 }
4083
5727ef1b
JB		 4084 return 0;
4085}
4086
c8dcfd8a
FF		 4087static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4088 int attr)
4089{
4090 struct nlattr *rate;
8eb41c8d
VK		 4091 u32 bitrate;
4092 u16 bitrate_compat;
b51f3bee 4093 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 4094
4095 rate = nla_nest_start(msg, attr);
4096 if (!rate)
db9c64cf 4097 return false;
c8dcfd8a
FF		 4098
4099 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4100 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4101 /* report 16-bit bitrate only if we can */
4102 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4103 if (bitrate > 0 &&
4104 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4105 return false;
4106 if (bitrate_compat > 0 &&
4107 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4108 return false;
4109
b51f3bee
JB		 4110 switch (info->bw) {
4111 case RATE_INFO_BW_5:
4112 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4113 break;
4114 case RATE_INFO_BW_10:
4115 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4116 break;
4117 default:
4118 WARN_ON(1);
4119 /* fall through */
4120 case RATE_INFO_BW_20:
4121 rate_flg = 0;
4122 break;
4123 case RATE_INFO_BW_40:
4124 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4125 break;
4126 case RATE_INFO_BW_80:
4127 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4128 break;
4129 case RATE_INFO_BW_160:
4130 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4131 break;
4132 }
4133
4134 if (rate_flg && nla_put_flag(msg, rate_flg))
4135 return false;
4136
db9c64cf
JB		 4137 if (info->flags & RATE_INFO_FLAGS_MCS) {
4138 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4139 return false;
db9c64cf
JB		 4140 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4141 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4142 return false;
4143 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4144 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4145 return false;
4146 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4147 return false;
db9c64cf
JB		 4148 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4149 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4150 return false;
4151 }
c8dcfd8a
FF		 4152
4153 nla_nest_end(msg, rate);
4154 return true;
c8dcfd8a
FF		 4155}
4156
119363c7
FF		 4157static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4158 int id)
4159{
4160 void *attr;
4161 int i = 0;
4162
4163 if (!mask)
4164 return true;
4165
4166 attr = nla_nest_start(msg, id);
4167 if (!attr)
4168 return false;
4169
4170 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4171 if (!(mask & BIT(i)))
4172 continue;
4173
4174 if (nla_put_u8(msg, i, signal[i]))
4175 return false;
4176 }
4177
4178 nla_nest_end(msg, attr);
4179
4180 return true;
4181}
4182
cf5ead82
JB		 4183static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4184 u32 seq, int flags,
66266b3a
JL		 4185 struct cfg80211_registered_device *rdev,
4186 struct net_device *dev,
98b62183 4187 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4188{
4189 void *hdr;
f4263c98 4190 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4191
cf5ead82 4192 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4193 if (!hdr)
4194 return -1;
4195
9360ffd1
DM		 4196 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4197 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4198 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4199 goto nla_put_failure;
f5ea9120 4200
2ec600d6
LCC		 4201 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4202 if (!sinfoattr)
fd5b74dc 4203 goto nla_put_failure;
319090bf
JB		 4204
4205#define PUT_SINFO(attr, memb, type) do { \
d686b920 4206 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4207 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4208 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4209 sinfo->memb)) \
4210 goto nla_put_failure; \
4211 } while (0)
d686b920
JB		 4212#define PUT_SINFO_U64(attr, memb) do { \
4213 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4214 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4215 sinfo->memb, NL80211_STA_INFO_PAD)) \
4216 goto nla_put_failure; \
4217 } while (0)
319090bf
JB		 4218
4219 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4220 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4221
4222 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4223 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4224 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4225 (u32)sinfo->rx_bytes))
9360ffd1 4226 goto nla_put_failure;
319090bf
JB		 4227
4228 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4229 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4230 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4231 (u32)sinfo->tx_bytes))
4232 goto nla_put_failure;
319090bf 4233
d686b920
JB		 4234 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4235 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4236 PUT_SINFO(LLID, llid, u16);
4237 PUT_SINFO(PLID, plid, u16);
4238 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4239 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4240
66266b3a
JL		 4241 switch (rdev->wiphy.signal_type) {
4242 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4243 PUT_SINFO(SIGNAL, signal, u8);
4244 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4245 break;
4246 default:
4247 break;
4248 }
319090bf 4249 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4250 if (!nl80211_put_signal(msg, sinfo->chains,
4251 sinfo->chain_signal,
4252 NL80211_STA_INFO_CHAIN_SIGNAL))
4253 goto nla_put_failure;
4254 }
319090bf 4255 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4256 if (!nl80211_put_signal(msg, sinfo->chains,
4257 sinfo->chain_signal_avg,
4258 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4259 goto nla_put_failure;
4260 }
319090bf 4261 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4262 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4263 NL80211_STA_INFO_TX_BITRATE))
4264 goto nla_put_failure;
4265 }
319090bf 4266 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4267 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4268 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4269 goto nla_put_failure;
420e7fab 4270 }
319090bf
JB		 4271
4272 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4273 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4274 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4275 PUT_SINFO(TX_FAILED, tx_failed, u32);
4276 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4277 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4278 PUT_SINFO(LOCAL_PM, local_pm, u32);
4279 PUT_SINFO(PEER_PM, peer_pm, u32);
4280 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4281
4282 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4283 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4284 if (!bss_param)
4285 goto nla_put_failure;
4286
9360ffd1
DM		 4287 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4288 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4289 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4290 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4291 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4292 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4293 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4294 sinfo->bss_param.dtim_period) ||
4295 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4296 sinfo->bss_param.beacon_interval))
4297 goto nla_put_failure;
f4263c98
PS		 4298
4299 nla_nest_end(msg, bss_param);
4300 }
319090bf 4301 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4302 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4303 sizeof(struct nl80211_sta_flag_update),
4304 &sinfo->sta_flags))
4305 goto nla_put_failure;
319090bf 4306
d686b920
JB		 4307 PUT_SINFO_U64(T_OFFSET, t_offset);
4308 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4309 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4310 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4311
4312#undef PUT_SINFO
d686b920 4313#undef PUT_SINFO_U64
6de39808
JB		 4314
4315 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4316 struct nlattr *tidsattr;
4317 int tid;
4318
4319 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4320 if (!tidsattr)
4321 goto nla_put_failure;
4322
4323 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4324 struct cfg80211_tid_stats *tidstats;
4325 struct nlattr *tidattr;
4326
4327 tidstats = &sinfo->pertid[tid];
4328
4329 if (!tidstats->filled)
4330 continue;
4331
4332 tidattr = nla_nest_start(msg, tid + 1);
4333 if (!tidattr)
4334 goto nla_put_failure;
4335
d686b920 4336#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4337 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4338 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4339 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4340 goto nla_put_failure; \
4341 } while (0)
4342
d686b920
JB		 4343 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4344 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4345 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4346 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4347
d686b920 4348#undef PUT_TIDVAL_U64
6de39808
JB		 4349 nla_nest_end(msg, tidattr);
4350 }
4351
4352 nla_nest_end(msg, tidsattr);
4353 }
4354
2ec600d6 4355 nla_nest_end(msg, sinfoattr);
fd5b74dc 4356
319090bf 4357 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4358 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4359 sinfo->assoc_req_ies))
4360 goto nla_put_failure;
50d3dfb7 4361
053c095a
JB		 4362 genlmsg_end(msg, hdr);
4363 return 0;
fd5b74dc
JB		 4364
4365 nla_put_failure:
bc3ed28c
TG		 4366 genlmsg_cancel(msg, hdr);
4367 return -EMSGSIZE;
fd5b74dc
JB		 4368}
4369
2ec600d6 4370static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4371 struct netlink_callback *cb)
2ec600d6 4372{
2ec600d6 4373 struct station_info sinfo;
1b8ec87a 4374 struct cfg80211_registered_device *rdev;
97990a06 4375 struct wireless_dev *wdev;
2ec600d6 4376 u8 mac_addr[ETH_ALEN];
97990a06 4377 int sta_idx = cb->args[2];
2ec600d6 4378 int err;
2ec600d6 4379
1b8ec87a 4380 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4381 if (err)
4382 return err;
bba95fef 4383
97990a06
JB		 4384 if (!wdev->netdev) {
4385 err = -EINVAL;
4386 goto out_err;
4387 }
4388
1b8ec87a 4389 if (!rdev->ops->dump_station) {
eec60b03 4390 err = -EOPNOTSUPP;
bba95fef
JB		 4391 goto out_err;
4392 }
4393
bba95fef 4394 while (1) {
f612cedf 4395 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4396 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4397 mac_addr, &sinfo);
bba95fef
JB		 4398 if (err == -ENOENT)
4399 break;
4400 if (err)
3b85875a 4401 goto out_err;
bba95fef 4402
cf5ead82 4403 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4404 NETLINK_CB(cb->skb).portid,
bba95fef 4405 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4406 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4407 &sinfo) < 0)
4408 goto out;
4409
4410 sta_idx++;
4411 }
4412
bba95fef 4413 out:
97990a06 4414 cb->args[2] = sta_idx;
bba95fef 4415 err = skb->len;
bba95fef 4416 out_err:
1b8ec87a 4417 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4418
4419 return err;
2ec600d6 4420}
fd5b74dc 4421
5727ef1b
JB		 4422static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4423{
4c476991
JB		 4424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4425 struct net_device *dev = info->user_ptr[1];
2ec600d6 4426 struct station_info sinfo;
fd5b74dc
JB		 4427 struct sk_buff *msg;
4428 u8 *mac_addr = NULL;
4c476991 4429 int err;
fd5b74dc 4430
2ec600d6 4431 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4432
4433 if (!info->attrs[NL80211_ATTR_MAC])
4434 return -EINVAL;
4435
4436 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4437
4c476991
JB		 4438 if (!rdev->ops->get_station)
4439 return -EOPNOTSUPP;
3b85875a 4440
e35e4d28 4441 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4442 if (err)
4c476991 4443 return err;
2ec600d6 4444
fd2120ca 4445 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4446 if (!msg)
4c476991 4447 return -ENOMEM;
fd5b74dc 4448
cf5ead82
JB		 4449 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4450 info->snd_portid, info->snd_seq, 0,
66266b3a 4451 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4452 nlmsg_free(msg);
4453 return -ENOBUFS;
4454 }
3b85875a 4455
4c476991 4456 return genlmsg_reply(msg, info);
5727ef1b
JB		 4457}
4458
77ee7c89
JB		 4459int cfg80211_check_station_change(struct wiphy *wiphy,
4460 struct station_parameters *params,
4461 enum cfg80211_station_type statype)
4462{
e4208427
AB		 4463 if (params->listen_interval != -1 &&
4464 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4465 return -EINVAL;
e4208427 4466
17b94247
AB		 4467 if (params->support_p2p_ps != -1 &&
4468 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4469 return -EINVAL;
4470
c72e1140 4471 if (params->aid &&
e4208427
AB		 4472 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4473 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4474 return -EINVAL;
4475
4476 /* When you run into this, adjust the code below for the new flag */
4477 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4478
4479 switch (statype) {
eef941e6
TP		 4480 case CFG80211_STA_MESH_PEER_KERNEL:
4481 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4482 /*
4483 * No ignoring the TDLS flag here -- the userspace mesh
4484 * code doesn't have the bug of including TDLS in the
4485 * mask everywhere.
4486 */
4487 if (params->sta_flags_mask &
4488 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4489 BIT(NL80211_STA_FLAG_MFP) |
4490 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4491 return -EINVAL;
4492 break;
4493 case CFG80211_STA_TDLS_PEER_SETUP:
4494 case CFG80211_STA_TDLS_PEER_ACTIVE:
4495 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4496 return -EINVAL;
4497 /* ignore since it can't change */
4498 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4499 break;
4500 default:
4501 /* disallow mesh-specific things */
4502 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4503 return -EINVAL;
4504 if (params->local_pm)
4505 return -EINVAL;
4506 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4507 return -EINVAL;
4508 }
4509
4510 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4511 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4512 /* TDLS can't be set, ... */
4513 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4514 return -EINVAL;
4515 /*
4516 * ... but don't bother the driver with it. This works around
4517 * a hostapd/wpa_supplicant issue -- it always includes the
4518 * TLDS_PEER flag in the mask even for AP mode.
4519 */
4520 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4521 }
4522
47edb11b
AB		 4523 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4524 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4525 /* reject other things that can't change */
4526 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4527 return -EINVAL;
4528 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4529 return -EINVAL;
4530 if (params->supported_rates)
4531 return -EINVAL;
4532 if (params->ext_capab || params->ht_capa || params->vht_capa)
4533 return -EINVAL;
4534 }
4535
47edb11b
AB		 4536 if (statype != CFG80211_STA_AP_CLIENT &&
4537 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4538 if (params->vlan)
4539 return -EINVAL;
4540 }
4541
4542 switch (statype) {
4543 case CFG80211_STA_AP_MLME_CLIENT:
4544 /* Use this only for authorizing/unauthorizing a station */
4545 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4546 return -EOPNOTSUPP;
4547 break;
4548 case CFG80211_STA_AP_CLIENT:
47edb11b 4549 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4550 /* accept only the listed bits */
4551 if (params->sta_flags_mask &
4552 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4553 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4554 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4555 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4556 BIT(NL80211_STA_FLAG_WME) |
4557 BIT(NL80211_STA_FLAG_MFP)))
4558 return -EINVAL;
4559
4560 /* but authenticated/associated only if driver handles it */
4561 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4562 params->sta_flags_mask &
4563 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4564 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4565 return -EINVAL;
4566 break;
4567 case CFG80211_STA_IBSS:
4568 case CFG80211_STA_AP_STA:
4569 /* reject any changes other than AUTHORIZED */
4570 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4571 return -EINVAL;
4572 break;
4573 case CFG80211_STA_TDLS_PEER_SETUP:
4574 /* reject any changes other than AUTHORIZED or WME */
4575 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4576 BIT(NL80211_STA_FLAG_WME)))
4577 return -EINVAL;
4578 /* force (at least) rates when authorizing */
4579 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4580 !params->supported_rates)
4581 return -EINVAL;
4582 break;
4583 case CFG80211_STA_TDLS_PEER_ACTIVE:
4584 /* reject any changes */
4585 return -EINVAL;
eef941e6 4586 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4587 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4588 return -EINVAL;
4589 break;
eef941e6 4590 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4591 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4592 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4593 return -EINVAL;
4594 break;
4595 }
4596
4597 return 0;
4598}
4599EXPORT_SYMBOL(cfg80211_check_station_change);
4600
5727ef1b 4601/*
c258d2de 4602 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4603 */
80b99899
JB		 4604static struct net_device *get_vlan(struct genl_info *info,
4605 struct cfg80211_registered_device *rdev)
5727ef1b 4606{
463d0183 4607 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4608 struct net_device *v;
4609 int ret;
4610
4611 if (!vlanattr)
4612 return NULL;
4613
4614 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4615 if (!v)
4616 return ERR_PTR(-ENODEV);
4617
4618 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4619 ret = -EINVAL;
4620 goto error;
5727ef1b 4621 }
80b99899 4622
77ee7c89
JB		 4623 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4624 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4625 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4626 ret = -EINVAL;
4627 goto error;
4628 }
4629
80b99899
JB		 4630 if (!netif_running(v)) {
4631 ret = -ENETDOWN;
4632 goto error;
4633 }
4634
4635 return v;
4636 error:
4637 dev_put(v);
4638 return ERR_PTR(ret);
5727ef1b
JB		 4639}
4640
94e860f1
JB		 4641static const struct nla_policy
4642nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4643 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4644 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4645};
4646
ff276691
JB		 4647static int nl80211_parse_sta_wme(struct genl_info *info,
4648 struct station_parameters *params)
df881293 4649{
df881293
JM		 4650 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4651 struct nlattr *nla;
4652 int err;
4653
df881293
JM		 4654 /* parse WME attributes if present */
4655 if (!info->attrs[NL80211_ATTR_STA_WME])
4656 return 0;
4657
4658 nla = info->attrs[NL80211_ATTR_STA_WME];
4659 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4660 nl80211_sta_wme_policy);
4661 if (err)
4662 return err;
4663
4664 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4665 params->uapsd_queues = nla_get_u8(
4666 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4667 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4668 return -EINVAL;
4669
4670 if (tb[NL80211_STA_WME_MAX_SP])
4671 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4672
4673 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4674 return -EINVAL;
4675
4676 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4677
4678 return 0;
4679}
4680
c01fc9ad
SD		 4681static int nl80211_parse_sta_channel_info(struct genl_info *info,
4682 struct station_parameters *params)
4683{
4684 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4685 params->supported_channels =
4686 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4687 params->supported_channels_len =
4688 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4689 /*
4690 * Need to include at least one (first channel, number of
4691 * channels) tuple for each subband, and must have proper
4692 * tuples for the rest of the data as well.
4693 */
4694 if (params->supported_channels_len < 2)
4695 return -EINVAL;
4696 if (params->supported_channels_len % 2)
4697 return -EINVAL;
4698 }
4699
4700 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4701 params->supported_oper_classes =
4702 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4703 params->supported_oper_classes_len =
4704 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4705 /*
4706 * The value of the Length field of the Supported Operating
4707 * Classes element is between 2 and 253.
4708 */
4709 if (params->supported_oper_classes_len < 2 ||
4710 params->supported_oper_classes_len > 253)
4711 return -EINVAL;
4712 }
4713 return 0;
4714}
4715
ff276691
JB		 4716static int nl80211_set_station_tdls(struct genl_info *info,
4717 struct station_parameters *params)
4718{
c01fc9ad 4719 int err;
ff276691 4720 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4721 if (info->attrs[NL80211_ATTR_PEER_AID])
4722 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4723 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4724 params->ht_capa =
4725 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4726 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4727 params->vht_capa =
4728 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4729
c01fc9ad
SD		 4730 err = nl80211_parse_sta_channel_info(info, params);
4731 if (err)
4732 return err;
4733
ff276691
JB		 4734 return nl80211_parse_sta_wme(info, params);
4735}
4736
5727ef1b
JB		 4737static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4738{
4c476991 4739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4740 struct net_device *dev = info->user_ptr[1];
5727ef1b 4741 struct station_parameters params;
77ee7c89
JB		 4742 u8 *mac_addr;
4743 int err;
5727ef1b
JB		 4744
4745 memset(&params, 0, sizeof(params));
4746
77ee7c89
JB		 4747 if (!rdev->ops->change_station)
4748 return -EOPNOTSUPP;
4749
e4208427
AB		 4750 /*
4751 * AID and listen_interval properties can be set only for unassociated
4752 * station. Include these parameters here and will check them in
4753 * cfg80211_check_station_change().
4754 */
a9bc31e4
AB		 4755 if (info->attrs[NL80211_ATTR_STA_AID])
4756 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4757
4758 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4759 params.listen_interval =
4760 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4761 else
4762 params.listen_interval = -1;
5727ef1b 4763
17b94247
AB		 4764 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4765 u8 tmp;
4766
4767 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4768 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4769 return -EINVAL;
4770
4771 params.support_p2p_ps = tmp;
4772 } else {
4773 params.support_p2p_ps = -1;
4774 }
4775
5727ef1b
JB		 4776 if (!info->attrs[NL80211_ATTR_MAC])
4777 return -EINVAL;
4778
4779 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4780
4781 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4782 params.supported_rates =
4783 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4784 params.supported_rates_len =
4785 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4786 }
4787
9d62a986
JM		 4788 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4789 params.capability =
4790 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4791 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4792 }
4793
4794 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4795 params.ext_capab =
4796 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4797 params.ext_capab_len =
4798 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4799 }
4800
bdd3ae3d 4801 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4802 return -EINVAL;
4803
f8bacc21 4804 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4805 params.plink_action =
f8bacc21
JB		 4806 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4807 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4808 return -EINVAL;
4809 }
2ec600d6 4810
f8bacc21 4811 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4812 params.plink_state =
f8bacc21
JB		 4813 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4814 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4815 return -EINVAL;
7d27a0ba
MH		 4816 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4817 params.peer_aid = nla_get_u16(
4818 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4819 if (params.peer_aid > IEEE80211_MAX_AID)
4820 return -EINVAL;
4821 }
f8bacc21
JB		 4822 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4823 }
9c3990aa 4824
3b1c5a53
MP		 4825 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4826 enum nl80211_mesh_power_mode pm = nla_get_u32(
4827 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4828
4829 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4830 pm > NL80211_MESH_POWER_MAX)
4831 return -EINVAL;
4832
4833 params.local_pm = pm;
4834 }
4835
77ee7c89
JB		 4836 /* Include parameters for TDLS peer (will check later) */
4837 err = nl80211_set_station_tdls(info, &params);
4838 if (err)
4839 return err;
4840
4841 params.vlan = get_vlan(info, rdev);
4842 if (IS_ERR(params.vlan))
4843 return PTR_ERR(params.vlan);
4844
a97f4424
JB		 4845 switch (dev->ieee80211_ptr->iftype) {
4846 case NL80211_IFTYPE_AP:
4847 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4848 case NL80211_IFTYPE_P2P_GO:
074ac8df 4849 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4850 case NL80211_IFTYPE_STATION:
267335d6 4851 case NL80211_IFTYPE_ADHOC:
a97f4424 4852 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4853 break;
4854 default:
77ee7c89
JB		 4855 err = -EOPNOTSUPP;
4856 goto out_put_vlan;
034d655e
JB		 4857 }
4858
77ee7c89 4859 /* driver will call cfg80211_check_station_change() */
e35e4d28 4860 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4861
77ee7c89 4862 out_put_vlan:
5727ef1b
JB		 4863 if (params.vlan)
4864 dev_put(params.vlan);
3b85875a 4865
5727ef1b
JB		 4866 return err;
4867}
4868
4869static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4870{
4c476991 4871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4872 int err;
4c476991 4873 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4874 struct station_parameters params;
4875 u8 *mac_addr = NULL;
bda95eb1
JB		 4876 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4877 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4878
4879 memset(&params, 0, sizeof(params));
4880
984c311b
JB		 4881 if (!rdev->ops->add_station)
4882 return -EOPNOTSUPP;
4883
5727ef1b
JB		 4884 if (!info->attrs[NL80211_ATTR_MAC])
4885 return -EINVAL;
4886
5727ef1b
JB		 4887 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4888 return -EINVAL;
4889
4890 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4891 return -EINVAL;
4892
5e4b6f56
JM		 4893 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4894 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4895 return -EINVAL;
4896
5727ef1b
JB		 4897 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4898 params.supported_rates =
4899 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4900 params.supported_rates_len =
4901 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4902 params.listen_interval =
4903 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4904
17b94247
AB		 4905 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4906 u8 tmp;
4907
4908 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4909 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4910 return -EINVAL;
4911
4912 params.support_p2p_ps = tmp;
4913 } else {
4914 /*
4915 * if not specified, assume it's supported for P2P GO interface,
4916 * and is NOT supported for AP interface
4917 */
4918 params.support_p2p_ps =
4919 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4920 }
4921
3d124ea2 4922 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4923 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4924 else
4925 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4926 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4927 return -EINVAL;
51b50fbe 4928
9d62a986
JM		 4929 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4930 params.capability =
4931 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4932 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4933 }
4934
4935 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4936 params.ext_capab =
4937 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4938 params.ext_capab_len =
4939 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4940 }
4941
36aedc90
JM		 4942 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4943 params.ht_capa =
4944 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4945
f461be3e
MP		 4946 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4947 params.vht_capa =
4948 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4949
60f4a7b1
MK		 4950 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4951 params.opmode_notif_used = true;
4952 params.opmode_notif =
4953 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4954 }
4955
f8bacc21 4956 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4957 params.plink_action =
f8bacc21
JB		 4958 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4959 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4960 return -EINVAL;
4961 }
96b78dff 4962
c01fc9ad
SD		 4963 err = nl80211_parse_sta_channel_info(info, &params);
4964 if (err)
4965 return err;
4966
ff276691
JB		 4967 err = nl80211_parse_sta_wme(info, &params);
4968 if (err)
4969 return err;
bdd90d5e 4970
bdd3ae3d 4971 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4972 return -EINVAL;
4973
496fcc29
JB		 4974 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4975 * as userspace might just pass through the capabilities from the IEs
4976 * directly, rather than enforcing this restriction and returning an
4977 * error in this case.
4978 */
4979 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4980 params.ht_capa = NULL;
4981 params.vht_capa = NULL;
4982 }
4983
77ee7c89
JB		 4984 /* When you run into this, adjust the code below for the new flag */
4985 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4986
bdd90d5e
JB		 4987 switch (dev->ieee80211_ptr->iftype) {
4988 case NL80211_IFTYPE_AP:
4989 case NL80211_IFTYPE_AP_VLAN:
4990 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4991 /* ignore WME attributes if iface/sta is not capable */
4992 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4993 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4994 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4995
bdd90d5e 4996 /* TDLS peers cannot be added */
3d124ea2
JM		 4997 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4998 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4999 return -EINVAL;
bdd90d5e
JB		 5000 /* but don't bother the driver with it */
5001 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5002
d582cffb
JB		 5003 /* allow authenticated/associated only if driver handles it */
5004 if (!(rdev->wiphy.features &
5005 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5006 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5007 return -EINVAL;
5008
bda95eb1
JB		 5009 /* Older userspace, or userspace wanting to be compatible with
5010 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5011 * and assoc flags in the mask, but assumes the station will be
5012 * added as associated anyway since this was the required driver
5013 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5014 * introduced.
5015 * In order to not bother drivers with this quirk in the API
5016 * set the flags in both the mask and set for new stations in
5017 * this case.
5018 */
5019 if (!(params.sta_flags_mask & auth_assoc)) {
5020 params.sta_flags_mask |= auth_assoc;
5021 params.sta_flags_set |= auth_assoc;
5022 }
5023
bdd90d5e
JB		 5024 /* must be last in here for error handling */
5025 params.vlan = get_vlan(info, rdev);
5026 if (IS_ERR(params.vlan))
5027 return PTR_ERR(params.vlan);
5028 break;
5029 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5030 /* ignore uAPSD data */
5031 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5032
d582cffb
JB		 5033 /* associated is disallowed */
5034 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5035 return -EINVAL;
bdd90d5e 5036 /* TDLS peers cannot be added */
3d124ea2
JM		 5037 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5038 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 5039 return -EINVAL;
5040 break;
5041 case NL80211_IFTYPE_STATION:
93d08f0b 5042 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5043 /* ignore uAPSD data */
5044 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5045
77ee7c89
JB		 5046 /* these are disallowed */
5047 if (params.sta_flags_mask &
5048 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5049 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5050 return -EINVAL;
bdd90d5e
JB		 5051 /* Only TDLS peers can be added */
5052 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5053 return -EINVAL;
5054 /* Can only add if TDLS ... */
5055 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5056 return -EOPNOTSUPP;
5057 /* ... with external setup is supported */
5058 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5059 return -EOPNOTSUPP;
77ee7c89
JB		 5060 /*
5061 * Older wpa_supplicant versions always mark the TDLS peer
5062 * as authorized, but it shouldn't yet be.
5063 */
5064 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5065 break;
5066 default:
5067 return -EOPNOTSUPP;
c75786c9
EP		 5068 }
5069
bdd90d5e 5070 /* be aware of params.vlan when changing code here */
5727ef1b 5071
e35e4d28 5072 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5073
5727ef1b
JB		 5074 if (params.vlan)
5075 dev_put(params.vlan);
5727ef1b
JB		 5076 return err;
5077}
5078
5079static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5080{
4c476991
JB		 5081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5082 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5083 struct station_del_parameters params;
5084
5085 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5086
5087 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5088 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5089
e80cf853 5090 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5091 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5092 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5093 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5094 return -EINVAL;
5727ef1b 5095
4c476991
JB		 5096 if (!rdev->ops->del_station)
5097 return -EOPNOTSUPP;
3b85875a 5098
98856866
JM		 5099 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5100 params.subtype =
5101 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5102 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5103 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5104 return -EINVAL;
5105 } else {
5106 /* Default to Deauthentication frame */
5107 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5108 }
5109
5110 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5111 params.reason_code =
5112 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5113 if (params.reason_code == 0)
5114 return -EINVAL; /* 0 is reserved */
5115 } else {
5116 /* Default to reason code 2 */
5117 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5118 }
5119
89c771e5 5120 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5121}
5122
15e47304 5123static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5124 int flags, struct net_device *dev,
5125 u8 *dst, u8 *next_hop,
5126 struct mpath_info *pinfo)
5127{
5128 void *hdr;
5129 struct nlattr *pinfoattr;
5130
1ef4c850 5131 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5132 if (!hdr)
5133 return -1;
5134
9360ffd1
DM		 5135 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5136 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5137 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5138 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5139 goto nla_put_failure;
f5ea9120 5140
2ec600d6
LCC		 5141 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5142 if (!pinfoattr)
5143 goto nla_put_failure;
9360ffd1
DM		 5144 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5145 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5146 pinfo->frame_qlen))
5147 goto nla_put_failure;
5148 if (((pinfo->filled & MPATH_INFO_SN) &&
5149 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5150 ((pinfo->filled & MPATH_INFO_METRIC) &&
5151 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5152 pinfo->metric)) ||
5153 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5154 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5155 pinfo->exptime)) ||
5156 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5157 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5158 pinfo->flags)) ||
5159 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5160 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5161 pinfo->discovery_timeout)) ||
5162 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5163 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5164 pinfo->discovery_retries)))
5165 goto nla_put_failure;
2ec600d6
LCC		 5166
5167 nla_nest_end(msg, pinfoattr);
5168
053c095a
JB		 5169 genlmsg_end(msg, hdr);
5170 return 0;
2ec600d6
LCC		 5171
5172 nla_put_failure:
bc3ed28c
TG		 5173 genlmsg_cancel(msg, hdr);
5174 return -EMSGSIZE;
2ec600d6
LCC		 5175}
5176
5177static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5178 struct netlink_callback *cb)
2ec600d6 5179{
2ec600d6 5180 struct mpath_info pinfo;
1b8ec87a 5181 struct cfg80211_registered_device *rdev;
97990a06 5182 struct wireless_dev *wdev;
2ec600d6
LCC		 5183 u8 dst[ETH_ALEN];
5184 u8 next_hop[ETH_ALEN];
97990a06 5185 int path_idx = cb->args[2];
2ec600d6 5186 int err;
2ec600d6 5187
1b8ec87a 5188 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5189 if (err)
5190 return err;
bba95fef 5191
1b8ec87a 5192 if (!rdev->ops->dump_mpath) {
eec60b03 5193 err = -EOPNOTSUPP;
bba95fef
JB		 5194 goto out_err;
5195 }
5196
97990a06 5197 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5198 err = -EOPNOTSUPP;
0448b5fc 5199 goto out_err;
eec60b03
JM		 5200 }
5201
bba95fef 5202 while (1) {
1b8ec87a 5203 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5204 next_hop, &pinfo);
bba95fef 5205 if (err == -ENOENT)
2ec600d6 5206 break;
bba95fef 5207 if (err)
3b85875a 5208 goto out_err;
2ec600d6 5209
15e47304 5210 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5211 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5212 wdev->netdev, dst, next_hop,
bba95fef
JB		 5213 &pinfo) < 0)
5214 goto out;
2ec600d6 5215
bba95fef 5216 path_idx++;
2ec600d6 5217 }
2ec600d6 5218
bba95fef 5219 out:
97990a06 5220 cb->args[2] = path_idx;
bba95fef 5221 err = skb->len;
bba95fef 5222 out_err:
1b8ec87a 5223 nl80211_finish_wdev_dump(rdev);
bba95fef 5224 return err;
2ec600d6
LCC		 5225}
5226
5227static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5228{
4c476991 5229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5230 int err;
4c476991 5231 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5232 struct mpath_info pinfo;
5233 struct sk_buff *msg;
5234 u8 *dst = NULL;
5235 u8 next_hop[ETH_ALEN];
5236
5237 memset(&pinfo, 0, sizeof(pinfo));
5238
5239 if (!info->attrs[NL80211_ATTR_MAC])
5240 return -EINVAL;
5241
5242 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5243
4c476991
JB		 5244 if (!rdev->ops->get_mpath)
5245 return -EOPNOTSUPP;
2ec600d6 5246
4c476991
JB		 5247 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5248 return -EOPNOTSUPP;
eec60b03 5249
e35e4d28 5250 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5251 if (err)
4c476991 5252 return err;
2ec600d6 5253
fd2120ca 5254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5255 if (!msg)
4c476991 5256 return -ENOMEM;
2ec600d6 5257
15e47304 5258 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5259 dev, dst, next_hop, &pinfo) < 0) {
5260 nlmsg_free(msg);
5261 return -ENOBUFS;
5262 }
3b85875a 5263
4c476991 5264 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5265}
5266
5267static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5268{
4c476991
JB		 5269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5270 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5271 u8 *dst = NULL;
5272 u8 *next_hop = NULL;
5273
5274 if (!info->attrs[NL80211_ATTR_MAC])
5275 return -EINVAL;
5276
5277 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5278 return -EINVAL;
5279
5280 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5281 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5282
4c476991
JB		 5283 if (!rdev->ops->change_mpath)
5284 return -EOPNOTSUPP;
35a8efe1 5285
4c476991
JB		 5286 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5287 return -EOPNOTSUPP;
2ec600d6 5288
e35e4d28 5289 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5290}
4c476991 5291
2ec600d6
LCC		 5292static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5293{
4c476991
JB		 5294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5295 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5296 u8 *dst = NULL;
5297 u8 *next_hop = NULL;
5298
5299 if (!info->attrs[NL80211_ATTR_MAC])
5300 return -EINVAL;
5301
5302 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5303 return -EINVAL;
5304
5305 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5306 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5307
4c476991
JB		 5308 if (!rdev->ops->add_mpath)
5309 return -EOPNOTSUPP;
35a8efe1 5310
4c476991
JB		 5311 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5312 return -EOPNOTSUPP;
2ec600d6 5313
e35e4d28 5314 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5315}
5316
5317static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5318{
4c476991
JB		 5319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5320 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5321 u8 *dst = NULL;
5322
5323 if (info->attrs[NL80211_ATTR_MAC])
5324 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5325
4c476991
JB		 5326 if (!rdev->ops->del_mpath)
5327 return -EOPNOTSUPP;
3b85875a 5328
e35e4d28 5329 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5330}
5331
66be7d2b
HR		 5332static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5333{
5334 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5335 int err;
5336 struct net_device *dev = info->user_ptr[1];
5337 struct mpath_info pinfo;
5338 struct sk_buff *msg;
5339 u8 *dst = NULL;
5340 u8 mpp[ETH_ALEN];
5341
5342 memset(&pinfo, 0, sizeof(pinfo));
5343
5344 if (!info->attrs[NL80211_ATTR_MAC])
5345 return -EINVAL;
5346
5347 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5348
5349 if (!rdev->ops->get_mpp)
5350 return -EOPNOTSUPP;
5351
5352 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5353 return -EOPNOTSUPP;
5354
5355 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5356 if (err)
5357 return err;
5358
5359 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5360 if (!msg)
5361 return -ENOMEM;
5362
5363 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5364 dev, dst, mpp, &pinfo) < 0) {
5365 nlmsg_free(msg);
5366 return -ENOBUFS;
5367 }
5368
5369 return genlmsg_reply(msg, info);
5370}
5371
5372static int nl80211_dump_mpp(struct sk_buff *skb,
5373 struct netlink_callback *cb)
5374{
5375 struct mpath_info pinfo;
5376 struct cfg80211_registered_device *rdev;
5377 struct wireless_dev *wdev;
5378 u8 dst[ETH_ALEN];
5379 u8 mpp[ETH_ALEN];
5380 int path_idx = cb->args[2];
5381 int err;
5382
5383 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5384 if (err)
5385 return err;
5386
5387 if (!rdev->ops->dump_mpp) {
5388 err = -EOPNOTSUPP;
5389 goto out_err;
5390 }
5391
5392 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5393 err = -EOPNOTSUPP;
5394 goto out_err;
5395 }
5396
5397 while (1) {
5398 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5399 mpp, &pinfo);
5400 if (err == -ENOENT)
5401 break;
5402 if (err)
5403 goto out_err;
5404
5405 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5406 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5407 wdev->netdev, dst, mpp,
5408 &pinfo) < 0)
5409 goto out;
5410
5411 path_idx++;
5412 }
5413
5414 out:
5415 cb->args[2] = path_idx;
5416 err = skb->len;
5417 out_err:
5418 nl80211_finish_wdev_dump(rdev);
5419 return err;
5420}
5421
9f1ba906
JM		 5422static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5423{
4c476991
JB		 5424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5425 struct net_device *dev = info->user_ptr[1];
c56589ed 5426 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5427 struct bss_parameters params;
c56589ed 5428 int err;
9f1ba906
JM		 5429
5430 memset(&params, 0, sizeof(params));
5431 /* default to not changing parameters */
5432 params.use_cts_prot = -1;
5433 params.use_short_preamble = -1;
5434 params.use_short_slot_time = -1;
fd8aaaf3 5435 params.ap_isolate = -1;
50b12f59 5436 params.ht_opmode = -1;
53cabad7
JB		 5437 params.p2p_ctwindow = -1;
5438 params.p2p_opp_ps = -1;
9f1ba906
JM		 5439
5440 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5441 params.use_cts_prot =
5442 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5443 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5444 params.use_short_preamble =
5445 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5446 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5447 params.use_short_slot_time =
5448 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5449 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5450 params.basic_rates =
5451 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5452 params.basic_rates_len =
5453 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5454 }
fd8aaaf3
FF		 5455 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5456 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5457 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5458 params.ht_opmode =
5459 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5460
53cabad7
JB		 5461 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5462 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5463 return -EINVAL;
5464 params.p2p_ctwindow =
5465 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5466 if (params.p2p_ctwindow < 0)
5467 return -EINVAL;
5468 if (params.p2p_ctwindow != 0 &&
5469 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5470 return -EINVAL;
5471 }
5472
5473 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5474 u8 tmp;
5475
5476 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5477 return -EINVAL;
5478 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5479 if (tmp > 1)
5480 return -EINVAL;
5481 params.p2p_opp_ps = tmp;
5482 if (params.p2p_opp_ps &&
5483 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5484 return -EINVAL;
5485 }
5486
4c476991
JB		 5487 if (!rdev->ops->change_bss)
5488 return -EOPNOTSUPP;
9f1ba906 5489
074ac8df 5490 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5491 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5492 return -EOPNOTSUPP;
3b85875a 5493
c56589ed
SW		 5494 wdev_lock(wdev);
5495 err = rdev_change_bss(rdev, dev, &params);
5496 wdev_unlock(wdev);
5497
5498 return err;
9f1ba906
JM		 5499}
5500
b2e1b302
LR		 5501static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5502{
b2e1b302 5503 char *data = NULL;
05050753 5504 bool is_indoor;
57b5ce07 5505 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5506 u32 owner_nlportid;
5507
80778f18
LR		 5508 /*
5509 * You should only get this when cfg80211 hasn't yet initialized
5510 * completely when built-in to the kernel right between the time
5511 * window between nl80211_init() and regulatory_init(), if that is
5512 * even possible.
5513 */
458f4f9e 5514 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5515 return -EINPROGRESS;
80778f18 5516
57b5ce07
LR		 5517 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5518 user_reg_hint_type =
5519 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5520 else
5521 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5522
5523 switch (user_reg_hint_type) {
5524 case NL80211_USER_REG_HINT_USER:
5525 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5526 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5527 return -EINVAL;
5528
5529 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5530 return regulatory_hint_user(data, user_reg_hint_type);
5531 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5532 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5533 owner_nlportid = info->snd_portid;
5534 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5535 } else {
5536 owner_nlportid = 0;
5537 is_indoor = true;
5538 }
5539
5540 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5541 default:
5542 return -EINVAL;
5543 }
b2e1b302
LR		 5544}
5545
24bdd9f4 5546static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5547 struct genl_info *info)
93da9cc1 5548{
4c476991 5549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5550 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5551 struct wireless_dev *wdev = dev->ieee80211_ptr;
5552 struct mesh_config cur_params;
5553 int err = 0;
93da9cc1 5554 void *hdr;
5555 struct nlattr *pinfoattr;
5556 struct sk_buff *msg;
5557
29cbe68c
JB		 5558 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5559 return -EOPNOTSUPP;
5560
24bdd9f4 5561 if (!rdev->ops->get_mesh_config)
4c476991 5562 return -EOPNOTSUPP;
f3f92586 5563
29cbe68c
JB		 5564 wdev_lock(wdev);
5565 /* If not connected, get default parameters */
5566 if (!wdev->mesh_id_len)
5567 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5568 else
e35e4d28 5569 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5570 wdev_unlock(wdev);
5571
93da9cc1 5572 if (err)
4c476991 5573 return err;
93da9cc1 5574
5575 /* Draw up a netlink message to send back */
fd2120ca 5576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5577 if (!msg)
5578 return -ENOMEM;
15e47304 5579 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5580 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5581 if (!hdr)
efe1cf0c 5582 goto out;
24bdd9f4 5583 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5584 if (!pinfoattr)
5585 goto nla_put_failure;
9360ffd1
DM		 5586 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5587 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5588 cur_params.dot11MeshRetryTimeout) ||
5589 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5590 cur_params.dot11MeshConfirmTimeout) ||
5591 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5592 cur_params.dot11MeshHoldingTimeout) ||
5593 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5594 cur_params.dot11MeshMaxPeerLinks) ||
5595 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5596 cur_params.dot11MeshMaxRetries) ||
5597 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5598 cur_params.dot11MeshTTL) ||
5599 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5600 cur_params.element_ttl) ||
5601 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5602 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5603 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5604 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5605 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5606 cur_params.dot11MeshHWMPmaxPREQretries) ||
5607 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5608 cur_params.path_refresh_time) ||
5609 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5610 cur_params.min_discovery_timeout) ||
5611 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5612 cur_params.dot11MeshHWMPactivePathTimeout) ||
5613 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5614 cur_params.dot11MeshHWMPpreqMinInterval) ||
5615 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5616 cur_params.dot11MeshHWMPperrMinInterval) ||
5617 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5618 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5619 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5620 cur_params.dot11MeshHWMPRootMode) ||
5621 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5622 cur_params.dot11MeshHWMPRannInterval) ||
5623 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5624 cur_params.dot11MeshGateAnnouncementProtocol) ||
5625 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5626 cur_params.dot11MeshForwarding) ||
5627 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5628 cur_params.rssi_threshold) ||
5629 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5630 cur_params.ht_opmode) ||
5631 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5632 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5633 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5634 cur_params.dot11MeshHWMProotInterval) ||
5635 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5636 cur_params.dot11MeshHWMPconfirmationInterval) ||
5637 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5638 cur_params.power_mode) ||
5639 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5640 cur_params.dot11MeshAwakeWindowDuration) ||
5641 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5642 cur_params.plink_timeout))
9360ffd1 5643 goto nla_put_failure;
93da9cc1 5644 nla_nest_end(msg, pinfoattr);
5645 genlmsg_end(msg, hdr);
4c476991 5646 return genlmsg_reply(msg, info);
93da9cc1 5647
3b85875a 5648 nla_put_failure:
93da9cc1 5649 genlmsg_cancel(msg, hdr);
efe1cf0c 5650 out:
d080e275 5651 nlmsg_free(msg);
4c476991 5652 return -ENOBUFS;
93da9cc1 5653}
5654
b54452b0 5655static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5656 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5657 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5658 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5659 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5660 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5661 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5662 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5663 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5664 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5665 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5666 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5667 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5668 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5669 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5670 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5671 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5672 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5673 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5674 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5675 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5676 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5677 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5678 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5679 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5680 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5681 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5682 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5683 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5684};
5685
c80d545d
JC		 5686static const struct nla_policy
5687 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5688 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5689 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5690 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5691 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5692 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5693 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5694 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5695 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5696 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5697};
5698
f151d9db
AB		 5699static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5700{
5701 u8 val = nla_get_u8(nla);
5702 if (val < min || val > max)
5703 return -EINVAL;
5704 *out = val;
5705 return 0;
5706}
5707
5708static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5709{
5710 u8 val = nla_get_u8(nla);
5711 if (val < min || val > max)
5712 return -EINVAL;
5713 *out = val;
5714 return 0;
5715}
5716
5717static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5718{
5719 u16 val = nla_get_u16(nla);
5720 if (val < min || val > max)
5721 return -EINVAL;
5722 *out = val;
5723 return 0;
5724}
5725
5726static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5727{
5728 u32 val = nla_get_u32(nla);
5729 if (val < min || val > max)
5730 return -EINVAL;
5731 *out = val;
5732 return 0;
5733}
5734
5735static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5736{
5737 s32 val = nla_get_s32(nla);
5738 if (val < min || val > max)
5739 return -EINVAL;
5740 *out = val;
5741 return 0;
5742}
5743
ff9a71af
JB		 5744static int nl80211_check_power_mode(const struct nlattr *nla,
5745 enum nl80211_mesh_power_mode min,
5746 enum nl80211_mesh_power_mode max,
5747 enum nl80211_mesh_power_mode *out)
5748{
5749 u32 val = nla_get_u32(nla);
5750 if (val < min || val > max)
5751 return -EINVAL;
5752 *out = val;
5753 return 0;
5754}
5755
24bdd9f4 5756static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5757 struct mesh_config *cfg,
5758 u32 *mask_out)
93da9cc1 5759{
93da9cc1 5760 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5761 u32 mask = 0;
9757235f 5762 u16 ht_opmode;
93da9cc1 5763
ea54fba2
MP		 5764#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5765do { \
5766 if (tb[attr]) { \
f151d9db 5767 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5768 return -EINVAL; \
ea54fba2
MP		 5769 mask |= (1 << (attr - 1)); \
5770 } \
5771} while (0)
bd90fdcc 5772
24bdd9f4 5773 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5774 return -EINVAL;
5775 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5776 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5777 nl80211_meshconf_params_policy))
93da9cc1 5778 return -EINVAL;
5779
93da9cc1 5780 /* This makes sure that there aren't more than 32 mesh config
5781 * parameters (otherwise our bitfield scheme would not work.) */
5782 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5783
5784 /* Fill in the params struct */
ea54fba2 5785 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5786 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5787 nl80211_check_u16);
ea54fba2 5788 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5789 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5790 nl80211_check_u16);
ea54fba2 5791 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5792 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5793 nl80211_check_u16);
ea54fba2 5794 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5795 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5796 nl80211_check_u16);
ea54fba2 5797 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5798 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5799 nl80211_check_u8);
ea54fba2 5800 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5801 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5802 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5803 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5804 nl80211_check_u8);
ea54fba2 5805 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5806 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5807 nl80211_check_bool);
ea54fba2
MP		 5808 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5809 1, 255, mask,
a4f606ea 5810 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5811 nl80211_check_u32);
ea54fba2 5812 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5813 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5814 nl80211_check_u8);
ea54fba2 5815 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5816 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5817 nl80211_check_u32);
ea54fba2 5818 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5819 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5820 nl80211_check_u16);
ea54fba2
MP		 5821 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5822 1, 65535, mask,
a4f606ea 5823 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5824 nl80211_check_u32);
93da9cc1 5825 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5826 1, 65535, mask,
5827 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5828 nl80211_check_u16);
dca7e943 5829 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5830 1, 65535, mask,
5831 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5832 nl80211_check_u16);
93da9cc1 5833 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5834 dot11MeshHWMPnetDiameterTraversalTime,
5835 1, 65535, mask,
a4f606ea 5836 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5837 nl80211_check_u16);
ea54fba2
MP		 5838 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5839 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5840 nl80211_check_u8);
ea54fba2
MP		 5841 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5842 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5843 nl80211_check_u16);
63c5723b 5844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5845 dot11MeshGateAnnouncementProtocol, 0, 1,
5846 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5847 nl80211_check_bool);
ea54fba2 5848 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5849 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5850 nl80211_check_bool);
83374fe9 5851 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5852 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5853 nl80211_check_s32);
9757235f
MH		 5854 /*
5855 * Check HT operation mode based on
5856 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5857 */
5858 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5859 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5860
5861 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5862 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5863 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5864 return -EINVAL;
5865
5866 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5867 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5868 return -EINVAL;
5869
5870 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5871 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5872 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5873 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5874 return -EINVAL;
5875 break;
5876 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5877 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5878 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5879 return -EINVAL;
5880 break;
5881 }
5882 cfg->ht_opmode = ht_opmode;
5883 }
ac1073a6 5884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5885 1, 65535, mask,
ac1073a6 5886 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5887 nl80211_check_u32);
ea54fba2 5888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5889 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5890 nl80211_check_u16);
728b19e5 5891 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5892 dot11MeshHWMPconfirmationInterval,
5893 1, 65535, mask,
728b19e5 5894 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5895 nl80211_check_u16);
3b1c5a53
MP		 5896 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5897 NL80211_MESH_POWER_ACTIVE,
5898 NL80211_MESH_POWER_MAX,
5899 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5900 nl80211_check_power_mode);
3b1c5a53
MP		 5901 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5902 0, 65535, mask,
f151d9db 5903 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5904 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5905 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5906 nl80211_check_u32);
bd90fdcc
JB		 5907 if (mask_out)
5908 *mask_out = mask;
c80d545d 5909
bd90fdcc
JB		 5910 return 0;
5911
5912#undef FILL_IN_MESH_PARAM_IF_SET
5913}
5914
c80d545d
JC		 5915static int nl80211_parse_mesh_setup(struct genl_info *info,
5916 struct mesh_setup *setup)
5917{
bb2798d4 5918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5919 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5920
5921 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5922 return -EINVAL;
5923 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5924 info->attrs[NL80211_ATTR_MESH_SETUP],
5925 nl80211_mesh_setup_params_policy))
5926 return -EINVAL;
5927
d299a1f2
JC		 5928 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5929 setup->sync_method =
5930 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5931 IEEE80211_SYNC_METHOD_VENDOR :
5932 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5933
c80d545d
JC		 5934 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5935 setup->path_sel_proto =
5936 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5937 IEEE80211_PATH_PROTOCOL_VENDOR :
5938 IEEE80211_PATH_PROTOCOL_HWMP;
5939
5940 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5941 setup->path_metric =
5942 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5943 IEEE80211_PATH_METRIC_VENDOR :
5944 IEEE80211_PATH_METRIC_AIRTIME;
5945
581a8b0f 5946 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5947 struct nlattr *ieattr =
581a8b0f 5948 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5949 if (!is_valid_ie_attr(ieattr))
5950 return -EINVAL;
581a8b0f
JC		 5951 setup->ie = nla_data(ieattr);
5952 setup->ie_len = nla_len(ieattr);
c80d545d 5953 }
bb2798d4
TP		 5954 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5955 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5956 return -EINVAL;
5957 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5958 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5959 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5960 if (setup->is_secure)
5961 setup->user_mpm = true;
c80d545d 5962
6e16d90b
CT		 5963 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5964 if (!setup->user_mpm)
5965 return -EINVAL;
5966 setup->auth_id =
5967 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5968 }
5969
c80d545d
JC		 5970 return 0;
5971}
5972
24bdd9f4 5973static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5974 struct genl_info *info)
bd90fdcc
JB		 5975{
5976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5977 struct net_device *dev = info->user_ptr[1];
29cbe68c 5978 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5979 struct mesh_config cfg;
5980 u32 mask;
5981 int err;
5982
29cbe68c
JB		 5983 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5984 return -EOPNOTSUPP;
5985
24bdd9f4 5986 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5987 return -EOPNOTSUPP;
5988
24bdd9f4 5989 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5990 if (err)
5991 return err;
5992
29cbe68c
JB		 5993 wdev_lock(wdev);
5994 if (!wdev->mesh_id_len)
5995 err = -ENOLINK;
5996
5997 if (!err)
e35e4d28 5998 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5999
6000 wdev_unlock(wdev);
6001
6002 return err;
93da9cc1 6003}
6004
ad30ca2c
AN		 6005static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6006 struct sk_buff *msg)
f130347c 6007{
f130347c
LR		 6008 struct nlattr *nl_reg_rules;
6009 unsigned int i;
f130347c 6010
458f4f9e
JB		 6011 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6012 (regdom->dfs_region &&
6013 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6014 goto nla_put_failure;
458f4f9e 6015
f130347c
LR		 6016 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6017 if (!nl_reg_rules)
ad30ca2c 6018 goto nla_put_failure;
f130347c 6019
458f4f9e 6020 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6021 struct nlattr *nl_reg_rule;
6022 const struct ieee80211_reg_rule *reg_rule;
6023 const struct ieee80211_freq_range *freq_range;
6024 const struct ieee80211_power_rule *power_rule;
97524820 6025 unsigned int max_bandwidth_khz;
f130347c 6026
458f4f9e 6027 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6028 freq_range = &reg_rule->freq_range;
6029 power_rule = &reg_rule->power_rule;
6030
6031 nl_reg_rule = nla_nest_start(msg, i);
6032 if (!nl_reg_rule)
ad30ca2c 6033 goto nla_put_failure;
f130347c 6034
97524820
JD		 6035 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6036 if (!max_bandwidth_khz)
6037 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6038 reg_rule);
6039
9360ffd1
DM		 6040 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6041 reg_rule->flags) ||
6042 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6043 freq_range->start_freq_khz) ||
6044 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6045 freq_range->end_freq_khz) ||
6046 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6047 max_bandwidth_khz) ||
9360ffd1
DM		 6048 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6049 power_rule->max_antenna_gain) ||
6050 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6051 power_rule->max_eirp) ||
6052 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6053 reg_rule->dfs_cac_ms))
ad30ca2c 6054 goto nla_put_failure;
f130347c
LR		 6055
6056 nla_nest_end(msg, nl_reg_rule);
6057 }
6058
6059 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6060 return 0;
6061
6062nla_put_failure:
6063 return -EMSGSIZE;
6064}
6065
6066static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6067{
6068 const struct ieee80211_regdomain *regdom = NULL;
6069 struct cfg80211_registered_device *rdev;
6070 struct wiphy *wiphy = NULL;
6071 struct sk_buff *msg;
6072 void *hdr;
6073
6074 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6075 if (!msg)
6076 return -ENOBUFS;
6077
6078 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6079 NL80211_CMD_GET_REG);
6080 if (!hdr)
6081 goto put_failure;
6082
6083 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6084 bool self_managed;
6085
ad30ca2c
AN		 6086 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6087 if (IS_ERR(rdev)) {
6088 nlmsg_free(msg);
6089 return PTR_ERR(rdev);
6090 }
6091
6092 wiphy = &rdev->wiphy;
1bdd716c
AN		 6093 self_managed = wiphy->regulatory_flags &
6094 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6095 regdom = get_wiphy_regdom(wiphy);
6096
1bdd716c
AN		 6097 /* a self-managed-reg device must have a private regdom */
6098 if (WARN_ON(!regdom && self_managed)) {
6099 nlmsg_free(msg);
6100 return -EINVAL;
6101 }
6102
ad30ca2c
AN		 6103 if (regdom &&
6104 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6105 goto nla_put_failure;
6106 }
6107
6108 if (!wiphy && reg_last_request_cell_base() &&
6109 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6110 NL80211_USER_REG_HINT_CELL_BASE))
6111 goto nla_put_failure;
6112
6113 rcu_read_lock();
6114
6115 if (!regdom)
6116 regdom = rcu_dereference(cfg80211_regdomain);
6117
6118 if (nl80211_put_regdom(regdom, msg))
6119 goto nla_put_failure_rcu;
6120
6121 rcu_read_unlock();
f130347c
LR		 6122
6123 genlmsg_end(msg, hdr);
5fe231e8 6124 return genlmsg_reply(msg, info);
f130347c 6125
458f4f9e
JB		 6126nla_put_failure_rcu:
6127 rcu_read_unlock();
f130347c
LR		 6128nla_put_failure:
6129 genlmsg_cancel(msg, hdr);
efe1cf0c 6130put_failure:
d080e275 6131 nlmsg_free(msg);
5fe231e8 6132 return -EMSGSIZE;
f130347c
LR		 6133}
6134
ad30ca2c
AN		 6135static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6136 u32 seq, int flags, struct wiphy *wiphy,
6137 const struct ieee80211_regdomain *regdom)
6138{
6139 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6140 NL80211_CMD_GET_REG);
6141
6142 if (!hdr)
6143 return -1;
6144
6145 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6146
6147 if (nl80211_put_regdom(regdom, msg))
6148 goto nla_put_failure;
6149
6150 if (!wiphy && reg_last_request_cell_base() &&
6151 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6152 NL80211_USER_REG_HINT_CELL_BASE))
6153 goto nla_put_failure;
6154
6155 if (wiphy &&
6156 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6157 goto nla_put_failure;
6158
1bdd716c
AN		 6159 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6160 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6161 goto nla_put_failure;
6162
053c095a
JB		 6163 genlmsg_end(msg, hdr);
6164 return 0;
ad30ca2c
AN		 6165
6166nla_put_failure:
6167 genlmsg_cancel(msg, hdr);
6168 return -EMSGSIZE;
6169}
6170
6171static int nl80211_get_reg_dump(struct sk_buff *skb,
6172 struct netlink_callback *cb)
6173{
6174 const struct ieee80211_regdomain *regdom = NULL;
6175 struct cfg80211_registered_device *rdev;
6176 int err, reg_idx, start = cb->args[2];
6177
6178 rtnl_lock();
6179
6180 if (cfg80211_regdomain && start == 0) {
6181 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6182 NLM_F_MULTI, NULL,
6183 rtnl_dereference(cfg80211_regdomain));
6184 if (err < 0)
6185 goto out_err;
6186 }
6187
6188 /* the global regdom is idx 0 */
6189 reg_idx = 1;
6190 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6191 regdom = get_wiphy_regdom(&rdev->wiphy);
6192 if (!regdom)
6193 continue;
6194
6195 if (++reg_idx <= start)
6196 continue;
6197
6198 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6199 NLM_F_MULTI, &rdev->wiphy, regdom);
6200 if (err < 0) {
6201 reg_idx--;
6202 break;
6203 }
6204 }
6205
6206 cb->args[2] = reg_idx;
6207 err = skb->len;
6208out_err:
6209 rtnl_unlock();
6210 return err;
6211}
6212
b6863036
JB		 6213#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6214static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6215 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6216 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6217 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6218 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6219 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6220 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6221 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6222};
6223
6224static int parse_reg_rule(struct nlattr *tb[],
6225 struct ieee80211_reg_rule *reg_rule)
6226{
6227 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6228 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6229
6230 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6231 return -EINVAL;
6232 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6233 return -EINVAL;
6234 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6235 return -EINVAL;
6236 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6237 return -EINVAL;
6238 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6239 return -EINVAL;
6240
6241 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6242
6243 freq_range->start_freq_khz =
6244 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6245 freq_range->end_freq_khz =
6246 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6247 freq_range->max_bandwidth_khz =
6248 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6249
6250 power_rule->max_eirp =
6251 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6252
6253 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6254 power_rule->max_antenna_gain =
6255 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6256
6257 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6258 reg_rule->dfs_cac_ms =
6259 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6260
6261 return 0;
6262}
6263
b2e1b302
LR		 6264static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6265{
6266 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6267 struct nlattr *nl_reg_rule;
ea372c54
JB		 6268 char *alpha2;
6269 int rem_reg_rules, r;
b2e1b302 6270 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6271 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6272 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6273
6274 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6275 return -EINVAL;
6276
6277 if (!info->attrs[NL80211_ATTR_REG_RULES])
6278 return -EINVAL;
6279
6280 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6281
8b60b078
LR		 6282 if (info->attrs[NL80211_ATTR_DFS_REGION])
6283 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6284
b2e1b302 6285 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6286 rem_reg_rules) {
b2e1b302
LR		 6287 num_rules++;
6288 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6289 return -EINVAL;
b2e1b302
LR		 6290 }
6291
e438768f
LR		 6292 if (!reg_is_valid_request(alpha2))
6293 return -EINVAL;
6294
b2e1b302 6295 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6296 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6297
6298 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6299 if (!rd)
6300 return -ENOMEM;
b2e1b302
LR		 6301
6302 rd->n_reg_rules = num_rules;
6303 rd->alpha2[0] = alpha2[0];
6304 rd->alpha2[1] = alpha2[1];
6305
8b60b078
LR		 6306 /*
6307 * Disable DFS master mode if the DFS region was
6308 * not supported or known on this kernel.
6309 */
6310 if (reg_supported_dfs_region(dfs_region))
6311 rd->dfs_region = dfs_region;
6312
b2e1b302 6313 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6314 rem_reg_rules) {
ae811e21
JB		 6315 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
6316 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
6317 reg_rule_policy);
6318 if (r)
6319 goto bad_reg;
b2e1b302
LR		 6320 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6321 if (r)
6322 goto bad_reg;
6323
6324 rule_idx++;
6325
d0e18f83
LR		 6326 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6327 r = -EINVAL;
b2e1b302 6328 goto bad_reg;
d0e18f83 6329 }
b2e1b302
LR		 6330 }
6331
06627990
JB		 6332 /* set_regdom takes ownership of rd */
6333 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6334 bad_reg:
b2e1b302 6335 kfree(rd);
d0e18f83 6336 return r;
b2e1b302 6337}
b6863036 6338#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6339
83f5e2cf
JB		 6340static int validate_scan_freqs(struct nlattr *freqs)
6341{
6342 struct nlattr *attr1, *attr2;
6343 int n_channels = 0, tmp1, tmp2;
6344
6345 nla_for_each_nested(attr1, freqs, tmp1) {
6346 n_channels++;
6347 /*
6348 * Some hardware has a limited channel list for
6349 * scanning, and it is pretty much nonsensical
6350 * to scan for a channel twice, so disallow that
6351 * and don't require drivers to check that the
6352 * channel list they get isn't longer than what
6353 * they can scan, as long as they can scan all
6354 * the channels they registered at once.
6355 */
6356 nla_for_each_nested(attr2, freqs, tmp2)
6357 if (attr1 != attr2 &&
6358 nla_get_u32(attr1) == nla_get_u32(attr2))
6359 return 0;
6360 }
6361
6362 return n_channels;
6363}
6364
57fbcce3 6365static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6366{
57fbcce3 6367 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6368}
6369
6370static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6371 struct cfg80211_bss_selection *bss_select)
6372{
6373 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6374 struct nlattr *nest;
6375 int err;
6376 bool found = false;
6377 int i;
6378
6379 /* only process one nested attribute */
6380 nest = nla_data(nla);
6381 if (!nla_ok(nest, nla_len(nest)))
6382 return -EINVAL;
6383
6384 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
6385 nla_len(nest), nl80211_bss_select_policy);
6386 if (err)
6387 return err;
6388
6389 /* only one attribute may be given */
6390 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6391 if (attr[i]) {
6392 if (found)
6393 return -EINVAL;
6394 found = true;
6395 }
6396 }
6397
6398 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6399
6400 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6401 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6402
6403 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6404 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6405 bss_select->param.band_pref =
6406 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6407 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6408 return -EINVAL;
6409 }
6410
6411 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6412 struct nl80211_bss_select_rssi_adjust *adj_param;
6413
6414 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6415 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6416 bss_select->param.adjust.band = adj_param->band;
6417 bss_select->param.adjust.delta = adj_param->delta;
6418 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6419 return -EINVAL;
6420 }
6421
6422 /* user-space did not provide behaviour attribute */
6423 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6424 return -EINVAL;
6425
6426 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6427 return -EINVAL;
6428
6429 return 0;
6430}
6431
ad2b26ab
JB		 6432static int nl80211_parse_random_mac(struct nlattr **attrs,
6433 u8 *mac_addr, u8 *mac_addr_mask)
6434{
6435 int i;
6436
6437 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6438 eth_zero_addr(mac_addr);
6439 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6440 mac_addr[0] = 0x2;
6441 mac_addr_mask[0] = 0x3;
6442
6443 return 0;
6444 }
6445
6446 /* need both or none */
6447 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6448 return -EINVAL;
6449
6450 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6451 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6452
6453 /* don't allow or configure an mcast address */
6454 if (!is_multicast_ether_addr(mac_addr_mask) ||
6455 is_multicast_ether_addr(mac_addr))
6456 return -EINVAL;
6457
6458 /*
6459 * allow users to pass a MAC address that has bits set outside
6460 * of the mask, but don't bother drivers with having to deal
6461 * with such bits
6462 */
6463 for (i = 0; i < ETH_ALEN; i++)
6464 mac_addr[i] &= mac_addr_mask[i];
6465
6466 return 0;
6467}
6468
2a519311
JB		 6469static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6470{
4c476991 6471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6472 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6473 struct cfg80211_scan_request *request;
2a519311
JB		 6474 struct nlattr *attr;
6475 struct wiphy *wiphy;
83f5e2cf 6476 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6477 size_t ie_len;
2a519311 6478
f4a11bb0
JB		 6479 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6480 return -EINVAL;
6481
79c97e97 6482 wiphy = &rdev->wiphy;
2a519311 6483
cb3b7d87
AB		 6484 if (wdev->iftype == NL80211_IFTYPE_NAN)
6485 return -EOPNOTSUPP;
6486
4c476991
JB		 6487 if (!rdev->ops->scan)
6488 return -EOPNOTSUPP;
2a519311 6489
f9d15d16 6490 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6491 err = -EBUSY;
6492 goto unlock;
6493 }
2a519311
JB		 6494
6495 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6496 n_channels = validate_scan_freqs(
6497 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6498 if (!n_channels) {
6499 err = -EINVAL;
6500 goto unlock;
6501 }
2a519311 6502 } else {
bdfbec2d 6503 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6504 }
6505
6506 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6507 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6508 n_ssids++;
6509
f9f47529
JB		 6510 if (n_ssids > wiphy->max_scan_ssids) {
6511 err = -EINVAL;
6512 goto unlock;
6513 }
2a519311 6514
70692ad2
JM		 6515 if (info->attrs[NL80211_ATTR_IE])
6516 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6517 else
6518 ie_len = 0;
6519
f9f47529
JB		 6520 if (ie_len > wiphy->max_scan_ie_len) {
6521 err = -EINVAL;
6522 goto unlock;
6523 }
18a83659 6524
2a519311 6525 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6526 + sizeof(*request->ssids) * n_ssids
6527 + sizeof(*request->channels) * n_channels
70692ad2 6528 + ie_len, GFP_KERNEL);
f9f47529
JB		 6529 if (!request) {
6530 err = -ENOMEM;
6531 goto unlock;
6532 }
2a519311 6533
2a519311 6534 if (n_ssids)
5ba63533 6535 request->ssids = (void *)&request->channels[n_channels];
2a519311 6536 request->n_ssids = n_ssids;
70692ad2 6537 if (ie_len) {
13874e4b 6538 if (n_ssids)
70692ad2
JM		 6539 request->ie = (void *)(request->ssids + n_ssids);
6540 else
6541 request->ie = (void *)(request->channels + n_channels);
6542 }
2a519311 6543
584991dc 6544 i = 0;
2a519311
JB		 6545 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6546 /* user specified, bail out if channel not found */
2a519311 6547 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6548 struct ieee80211_channel *chan;
6549
6550 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6551
6552 if (!chan) {
2a519311
JB		 6553 err = -EINVAL;
6554 goto out_free;
6555 }
584991dc
JB		 6556
6557 /* ignore disabled channels */
6558 if (chan->flags & IEEE80211_CHAN_DISABLED)
6559 continue;
6560
6561 request->channels[i] = chan;
2a519311
JB		 6562 i++;
6563 }
6564 } else {
57fbcce3 6565 enum nl80211_band band;
34850ab2 6566
2a519311 6567 /* all channels */
57fbcce3 6568 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6569 int j;
7a087e74 6570
2a519311
JB		 6571 if (!wiphy->bands[band])
6572 continue;
6573 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6574 struct ieee80211_channel *chan;
6575
6576 chan = &wiphy->bands[band]->channels[j];
6577
6578 if (chan->flags & IEEE80211_CHAN_DISABLED)
6579 continue;
6580
6581 request->channels[i] = chan;
2a519311
JB		 6582 i++;
6583 }
6584 }
6585 }
6586
584991dc
JB		 6587 if (!i) {
6588 err = -EINVAL;
6589 goto out_free;
6590 }
6591
6592 request->n_channels = i;
6593
2a519311 6594 i = 0;
13874e4b 6595 if (n_ssids) {
2a519311 6596 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6597 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6598 err = -EINVAL;
6599 goto out_free;
6600 }
57a27e1d 6601 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6602 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6603 i++;
6604 }
6605 }
6606
70692ad2
JM		 6607 if (info->attrs[NL80211_ATTR_IE]) {
6608 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6609 memcpy((void *)request->ie,
6610 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6611 request->ie_len);
6612 }
6613
57fbcce3 6614 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6615 if (wiphy->bands[i])
6616 request->rates[i] =
6617 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6618
6619 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6620 nla_for_each_nested(attr,
6621 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6622 tmp) {
57fbcce3 6623 enum nl80211_band band = nla_type(attr);
34850ab2 6624
57fbcce3 6625 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6626 err = -EINVAL;
6627 goto out_free;
6628 }
1b09cd82
FF		 6629
6630 if (!wiphy->bands[band])
6631 continue;
6632
34850ab2
JB		 6633 err = ieee80211_get_ratemask(wiphy->bands[band],
6634 nla_data(attr),
6635 nla_len(attr),
6636 &request->rates[band]);
6637 if (err)
6638 goto out_free;
6639 }
6640 }
6641
1d76250b
AS		 6642 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6643 if (!wiphy_ext_feature_isset(wiphy,
6644 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6645 err = -EOPNOTSUPP;
6646 goto out_free;
6647 }
6648
6649 request->duration =
6650 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6651 request->duration_mandatory =
6652 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6653 }
6654
46856bbf 6655 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6656 request->flags = nla_get_u32(
6657 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6658 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6659 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6660 err = -EOPNOTSUPP;
6661 goto out_free;
6662 }
ad2b26ab
JB		 6663
6664 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6665 if (!(wiphy->features &
6666 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6667 err = -EOPNOTSUPP;
6668 goto out_free;
6669 }
6670
6671 if (wdev->current_bss) {
6672 err = -EOPNOTSUPP;
6673 goto out_free;
6674 }
6675
6676 err = nl80211_parse_random_mac(info->attrs,
6677 request->mac_addr,
6678 request->mac_addr_mask);
6679 if (err)
6680 goto out_free;
6681 }
46856bbf 6682 }
ed473771 6683
e9f935e3
RM		 6684 request->no_cck =
6685 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6686
818965d3
JM		 6687 if (info->attrs[NL80211_ATTR_MAC])
6688 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6689 ETH_ALEN);
6690 else
6691 eth_broadcast_addr(request->bssid);
6692
fd014284 6693 request->wdev = wdev;
79c97e97 6694 request->wiphy = &rdev->wiphy;
15d6030b 6695 request->scan_start = jiffies;
2a519311 6696
79c97e97 6697 rdev->scan_req = request;
e35e4d28 6698 err = rdev_scan(rdev, request);
2a519311 6699
463d0183 6700 if (!err) {
fd014284
JB		 6701 nl80211_send_scan_start(rdev, wdev);
6702 if (wdev->netdev)
6703 dev_hold(wdev->netdev);
4c476991 6704 } else {
2a519311 6705 out_free:
79c97e97 6706 rdev->scan_req = NULL;
2a519311
JB		 6707 kfree(request);
6708 }
3b85875a 6709
f9f47529 6710 unlock:
2a519311
JB		 6711 return err;
6712}
6713
91d3ab46
VK		 6714static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6715{
6716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6717 struct wireless_dev *wdev = info->user_ptr[1];
6718
6719 if (!rdev->ops->abort_scan)
6720 return -EOPNOTSUPP;
6721
6722 if (rdev->scan_msg)
6723 return 0;
6724
6725 if (!rdev->scan_req)
6726 return -ENOENT;
6727
6728 rdev_abort_scan(rdev, wdev);
6729 return 0;
6730}
6731
3b06d277
AS		 6732static int
6733nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6734 struct cfg80211_sched_scan_request *request,
6735 struct nlattr **attrs)
6736{
6737 int tmp, err, i = 0;
6738 struct nlattr *attr;
6739
6740 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6741 u32 interval;
6742
6743 /*
6744 * If scan plans are not specified,
6745 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6746 * case one scan plan will be set with the specified scan
6747 * interval and infinite number of iterations.
6748 */
6749 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6750 return -EINVAL;
6751
6752 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6753 if (!interval)
6754 return -EINVAL;
6755
6756 request->scan_plans[0].interval =
6757 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6758 if (!request->scan_plans[0].interval)
6759 return -EINVAL;
6760
6761 if (request->scan_plans[0].interval >
6762 wiphy->max_sched_scan_plan_interval)
6763 request->scan_plans[0].interval =
6764 wiphy->max_sched_scan_plan_interval;
6765
6766 return 0;
6767 }
6768
6769 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6770 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6771
6772 if (WARN_ON(i >= n_plans))
6773 return -EINVAL;
6774
6775 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6776 nla_data(attr), nla_len(attr),
6777 nl80211_plan_policy);
6778 if (err)
6779 return err;
6780
6781 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6782 return -EINVAL;
6783
6784 request->scan_plans[i].interval =
6785 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6786 if (!request->scan_plans[i].interval ||
6787 request->scan_plans[i].interval >
6788 wiphy->max_sched_scan_plan_interval)
6789 return -EINVAL;
6790
6791 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6792 request->scan_plans[i].iterations =
6793 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6794 if (!request->scan_plans[i].iterations ||
6795 (request->scan_plans[i].iterations >
6796 wiphy->max_sched_scan_plan_iterations))
6797 return -EINVAL;
6798 } else if (i < n_plans - 1) {
6799 /*
6800 * All scan plans but the last one must specify
6801 * a finite number of iterations
6802 */
6803 return -EINVAL;
6804 }
6805
6806 i++;
6807 }
6808
6809 /*
6810 * The last scan plan must not specify the number of
6811 * iterations, it is supposed to run infinitely
6812 */
6813 if (request->scan_plans[n_plans - 1].iterations)
6814 return -EINVAL;
6815
6816 return 0;
6817}
6818
256da02d 6819static struct cfg80211_sched_scan_request *
ad2b26ab 6820nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6821 struct nlattr **attrs)
807f8a8c
LC		 6822{
6823 struct cfg80211_sched_scan_request *request;
807f8a8c 6824 struct nlattr *attr;
3b06d277 6825 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6826 enum nl80211_band band;
807f8a8c 6827 size_t ie_len;
a1f1c21c 6828 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6829 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6830
256da02d
LC		 6831 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6832 return ERR_PTR(-EINVAL);
807f8a8c 6833
256da02d 6834 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6835 n_channels = validate_scan_freqs(
256da02d 6836 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6837 if (!n_channels)
256da02d 6838 return ERR_PTR(-EINVAL);
807f8a8c 6839 } else {
bdfbec2d 6840 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6841 }
6842
256da02d
LC		 6843 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6844 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6845 tmp)
6846 n_ssids++;
6847
93b6aa69 6848 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6849 return ERR_PTR(-EINVAL);
807f8a8c 6850
ea73cbce
JB		 6851 /*
6852 * First, count the number of 'real' matchsets. Due to an issue with
6853 * the old implementation, matchsets containing only the RSSI attribute
6854 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6855 * RSSI for all matchsets, rather than their own matchset for reporting
6856 * all APs with a strong RSSI. This is needed to be compatible with
6857 * older userspace that treated a matchset with only the RSSI as the
6858 * global RSSI for all other matchsets - if there are other matchsets.
6859 */
256da02d 6860 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6861 nla_for_each_nested(attr,
256da02d 6862 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6863 tmp) {
6864 struct nlattr *rssi;
6865
6866 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6867 nla_data(attr), nla_len(attr),
6868 nl80211_match_policy);
6869 if (err)
256da02d 6870 return ERR_PTR(err);
ea73cbce
JB		 6871 /* add other standalone attributes here */
6872 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6873 n_match_sets++;
6874 continue;
6875 }
6876 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6877 if (rssi)
6878 default_match_rssi = nla_get_s32(rssi);
6879 }
6880 }
6881
6882 /* However, if there's no other matchset, add the RSSI one */
6883 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6884 n_match_sets = 1;
a1f1c21c
LC		 6885
6886 if (n_match_sets > wiphy->max_match_sets)
256da02d 6887 return ERR_PTR(-EINVAL);
a1f1c21c 6888
256da02d
LC		 6889 if (attrs[NL80211_ATTR_IE])
6890 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6891 else
6892 ie_len = 0;
6893
5a865bad 6894 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6895 return ERR_PTR(-EINVAL);
c10841ca 6896
3b06d277
AS		 6897 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6898 /*
6899 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6900 * each scan plan already specifies its own interval
6901 */
6902 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6903 return ERR_PTR(-EINVAL);
6904
6905 nla_for_each_nested(attr,
6906 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6907 n_plans++;
6908 } else {
6909 /*
6910 * The scan interval attribute is kept for backward
6911 * compatibility. If no scan plans are specified and sched scan
6912 * interval is specified, one scan plan will be set with this
6913 * scan interval and infinite number of iterations.
6914 */
6915 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6916 return ERR_PTR(-EINVAL);
6917
6918 n_plans = 1;
6919 }
6920
6921 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6922 return ERR_PTR(-EINVAL);
6923
807f8a8c 6924 request = kzalloc(sizeof(*request)
a2cd43c5 6925 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6926 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6927 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6928 + sizeof(*request->channels) * n_channels
807f8a8c 6929 + ie_len, GFP_KERNEL);
256da02d
LC		 6930 if (!request)
6931 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6932
6933 if (n_ssids)
6934 request->ssids = (void *)&request->channels[n_channels];
6935 request->n_ssids = n_ssids;
6936 if (ie_len) {
13874e4b 6937 if (n_ssids)
807f8a8c
LC		 6938 request->ie = (void *)(request->ssids + n_ssids);
6939 else
6940 request->ie = (void *)(request->channels + n_channels);
6941 }
6942
a1f1c21c
LC		 6943 if (n_match_sets) {
6944 if (request->ie)
6945 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6946 else if (n_ssids)
a1f1c21c
LC		 6947 request->match_sets =
6948 (void *)(request->ssids + n_ssids);
6949 else
6950 request->match_sets =
6951 (void *)(request->channels + n_channels);
6952 }
6953 request->n_match_sets = n_match_sets;
6954
3b06d277
AS		 6955 if (n_match_sets)
6956 request->scan_plans = (void *)(request->match_sets +
6957 n_match_sets);
6958 else if (request->ie)
6959 request->scan_plans = (void *)(request->ie + ie_len);
6960 else if (n_ssids)
6961 request->scan_plans = (void *)(request->ssids + n_ssids);
6962 else
6963 request->scan_plans = (void *)(request->channels + n_channels);
6964
6965 request->n_scan_plans = n_plans;
6966
807f8a8c 6967 i = 0;
256da02d 6968 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6969 /* user specified, bail out if channel not found */
6970 nla_for_each_nested(attr,
256da02d 6971 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6972 tmp) {
6973 struct ieee80211_channel *chan;
6974
6975 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6976
6977 if (!chan) {
6978 err = -EINVAL;
6979 goto out_free;
6980 }
6981
6982 /* ignore disabled channels */
6983 if (chan->flags & IEEE80211_CHAN_DISABLED)
6984 continue;
6985
6986 request->channels[i] = chan;
6987 i++;
6988 }
6989 } else {
6990 /* all channels */
57fbcce3 6991 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 6992 int j;
7a087e74 6993
807f8a8c
LC		 6994 if (!wiphy->bands[band])
6995 continue;
6996 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6997 struct ieee80211_channel *chan;
6998
6999 chan = &wiphy->bands[band]->channels[j];
7000
7001 if (chan->flags & IEEE80211_CHAN_DISABLED)
7002 continue;
7003
7004 request->channels[i] = chan;
7005 i++;
7006 }
7007 }
7008 }
7009
7010 if (!i) {
7011 err = -EINVAL;
7012 goto out_free;
7013 }
7014
7015 request->n_channels = i;
7016
7017 i = 0;
13874e4b 7018 if (n_ssids) {
256da02d 7019 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7020 tmp) {
57a27e1d 7021 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7022 err = -EINVAL;
7023 goto out_free;
7024 }
57a27e1d 7025 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7026 memcpy(request->ssids[i].ssid, nla_data(attr),
7027 nla_len(attr));
807f8a8c
LC		 7028 i++;
7029 }
7030 }
7031
a1f1c21c 7032 i = 0;
256da02d 7033 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7034 nla_for_each_nested(attr,
256da02d 7035 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7036 tmp) {
88e920b4 7037 struct nlattr *ssid, *rssi;
a1f1c21c 7038
ae811e21
JB		 7039 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7040 nla_data(attr), nla_len(attr),
7041 nl80211_match_policy);
7042 if (err)
7043 goto out_free;
4a4ab0d7 7044 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 7045 if (ssid) {
ea73cbce
JB		 7046 if (WARN_ON(i >= n_match_sets)) {
7047 /* this indicates a programming error,
7048 * the loop above should have verified
7049 * things properly
7050 */
7051 err = -EINVAL;
7052 goto out_free;
7053 }
7054
a1f1c21c
LC		 7055 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7056 err = -EINVAL;
7057 goto out_free;
7058 }
7059 memcpy(request->match_sets[i].ssid.ssid,
7060 nla_data(ssid), nla_len(ssid));
7061 request->match_sets[i].ssid.ssid_len =
7062 nla_len(ssid);
56ab364f 7063 /* special attribute - old implementation w/a */
ea73cbce
JB		 7064 request->match_sets[i].rssi_thold =
7065 default_match_rssi;
7066 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7067 if (rssi)
7068 request->match_sets[i].rssi_thold =
7069 nla_get_s32(rssi);
a1f1c21c
LC		 7070 }
7071 i++;
7072 }
ea73cbce
JB		 7073
7074 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7075 if (i == 0 && n_match_sets)
ea73cbce
JB		 7076 request->match_sets[0].rssi_thold = default_match_rssi;
7077
7078 request->min_rssi_thold = INT_MAX;
7079 for (i = 0; i < n_match_sets; i++)
7080 request->min_rssi_thold =
7081 min(request->match_sets[i].rssi_thold,
7082 request->min_rssi_thold);
7083 } else {
7084 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7085 }
7086
9900e484
JB		 7087 if (ie_len) {
7088 request->ie_len = ie_len;
807f8a8c 7089 memcpy((void *)request->ie,
256da02d 7090 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7091 request->ie_len);
7092 }
7093
256da02d 7094 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 7095 request->flags = nla_get_u32(
256da02d 7096 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 7097 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7098 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 7099 err = -EOPNOTSUPP;
7100 goto out_free;
7101 }
ad2b26ab
JB		 7102
7103 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7104 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7105
7106 if (!wdev) /* must be net-detect */
7107 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7108
7109 if (!(wiphy->features & flg)) {
7110 err = -EOPNOTSUPP;
7111 goto out_free;
7112 }
7113
7114 if (wdev && wdev->current_bss) {
7115 err = -EOPNOTSUPP;
7116 goto out_free;
7117 }
7118
7119 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7120 request->mac_addr_mask);
7121 if (err)
7122 goto out_free;
7123 }
46856bbf 7124 }
ed473771 7125
9c748934
LC		 7126 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7127 request->delay =
7128 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7129
3b06d277
AS		 7130 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7131 if (err)
7132 goto out_free;
7133
15d6030b 7134 request->scan_start = jiffies;
807f8a8c 7135
256da02d 7136 return request;
807f8a8c
LC		 7137
7138out_free:
7139 kfree(request);
256da02d
LC		 7140 return ERR_PTR(err);
7141}
7142
7143static int nl80211_start_sched_scan(struct sk_buff *skb,
7144 struct genl_info *info)
7145{
7146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7147 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7148 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7149 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 7150 int err;
7151
7152 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7153 !rdev->ops->sched_scan_start)
7154 return -EOPNOTSUPP;
7155
7156 if (rdev->sched_scan_req)
7157 return -EINPROGRESS;
7158
31a60ed1
JR		 7159 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7160 info->attrs);
7161
7162 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7163 if (err)
7164 goto out_err;
7165
31a60ed1 7166 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7167 if (err)
7168 goto out_free;
7169
31a60ed1
JR		 7170 sched_scan_req->dev = dev;
7171 sched_scan_req->wiphy = &rdev->wiphy;
7172
93a1e86c
JR		 7173 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7174 sched_scan_req->owner_nlportid = info->snd_portid;
7175
31a60ed1 7176 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 7177
7178 nl80211_send_sched_scan(rdev, dev,
7179 NL80211_CMD_START_SCHED_SCAN);
7180 return 0;
7181
7182out_free:
31a60ed1 7183 kfree(sched_scan_req);
256da02d 7184out_err:
807f8a8c
LC		 7185 return err;
7186}
7187
7188static int nl80211_stop_sched_scan(struct sk_buff *skb,
7189 struct genl_info *info)
7190{
7191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7192
7193 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7194 !rdev->ops->sched_scan_stop)
7195 return -EOPNOTSUPP;
7196
5fe231e8 7197 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 7198}
7199
04f39047
SW		 7200static int nl80211_start_radar_detection(struct sk_buff *skb,
7201 struct genl_info *info)
7202{
7203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7204 struct net_device *dev = info->user_ptr[1];
7205 struct wireless_dev *wdev = dev->ieee80211_ptr;
7206 struct cfg80211_chan_def chandef;
55f7435c 7207 enum nl80211_dfs_regions dfs_region;
31559f35 7208 unsigned int cac_time_ms;
04f39047
SW		 7209 int err;
7210
55f7435c
LR		 7211 dfs_region = reg_get_dfs_region(wdev->wiphy);
7212 if (dfs_region == NL80211_DFS_UNSET)
7213 return -EINVAL;
7214
04f39047
SW		 7215 err = nl80211_parse_chandef(rdev, info, &chandef);
7216 if (err)
7217 return err;
7218
ff311bc1
SW		 7219 if (netif_carrier_ok(dev))
7220 return -EBUSY;
7221
04f39047
SW		 7222 if (wdev->cac_started)
7223 return -EBUSY;
7224
2beb6dab 7225 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7226 wdev->iftype);
04f39047
SW		 7227 if (err < 0)
7228 return err;
7229
7230 if (err == 0)
7231 return -EINVAL;
7232
fe7c3a1f 7233 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7234 return -EINVAL;
7235
7236 if (!rdev->ops->start_radar_detection)
7237 return -EOPNOTSUPP;
7238
31559f35
JD		 7239 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7240 if (WARN_ON(!cac_time_ms))
7241 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7242
a1056b1b 7243 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7244 if (!err) {
9e0e2961 7245 wdev->chandef = chandef;
04f39047
SW		 7246 wdev->cac_started = true;
7247 wdev->cac_start_time = jiffies;
31559f35 7248 wdev->cac_time_ms = cac_time_ms;
04f39047 7249 }
04f39047
SW		 7250 return err;
7251}
7252
16ef1fe2
SW		 7253static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7254{
7255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7256 struct net_device *dev = info->user_ptr[1];
7257 struct wireless_dev *wdev = dev->ieee80211_ptr;
7258 struct cfg80211_csa_settings params;
7259 /* csa_attrs is defined static to avoid waste of stack size - this
7260 * function is called under RTNL lock, so this should not be a problem.
7261 */
7262 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7263 int err;
ee4bc9e7 7264 bool need_new_beacon = false;
9a774c78 7265 int len, i;
252e07ca 7266 u32 cs_count;
16ef1fe2
SW		 7267
7268 if (!rdev->ops->channel_switch ||
7269 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7270 return -EOPNOTSUPP;
7271
ee4bc9e7
SW		 7272 switch (dev->ieee80211_ptr->iftype) {
7273 case NL80211_IFTYPE_AP:
7274 case NL80211_IFTYPE_P2P_GO:
7275 need_new_beacon = true;
7276
7277 /* useless if AP is not running */
7278 if (!wdev->beacon_interval)
1ff79dfa 7279 return -ENOTCONN;
ee4bc9e7
SW		 7280 break;
7281 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7282 if (!wdev->ssid_len)
7283 return -ENOTCONN;
7284 break;
c6da674a 7285 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7286 if (!wdev->mesh_id_len)
7287 return -ENOTCONN;
ee4bc9e7
SW		 7288 break;
7289 default:
16ef1fe2 7290 return -EOPNOTSUPP;
ee4bc9e7 7291 }
16ef1fe2
SW		 7292
7293 memset(&params, 0, sizeof(params));
7294
7295 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7296 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7297 return -EINVAL;
7298
7299 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7300 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7301 return -EINVAL;
7302
252e07ca
LC		 7303 /* Even though the attribute is u32, the specification says
7304 * u8, so let's make sure we don't overflow.
7305 */
7306 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7307 if (cs_count > 255)
7308 return -EINVAL;
7309
7310 params.count = cs_count;
16ef1fe2 7311
ee4bc9e7
SW		 7312 if (!need_new_beacon)
7313 goto skip_beacons;
7314
16ef1fe2
SW		 7315 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7316 if (err)
7317 return err;
7318
7319 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7320 info->attrs[NL80211_ATTR_CSA_IES],
7321 nl80211_policy);
7322 if (err)
7323 return err;
7324
7325 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7326 if (err)
7327 return err;
7328
7329 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7330 return -EINVAL;
7331
9a774c78
AO		 7332 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7333 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7334 return -EINVAL;
7335
9a774c78
AO		 7336 params.n_counter_offsets_beacon = len / sizeof(u16);
7337 if (rdev->wiphy.max_num_csa_counters &&
7338 (params.n_counter_offsets_beacon >
7339 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7340 return -EINVAL;
7341
9a774c78
AO		 7342 params.counter_offsets_beacon =
7343 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7344
7345 /* sanity checks - counters should fit and be the same */
7346 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7347 u16 offset = params.counter_offsets_beacon[i];
7348
7349 if (offset >= params.beacon_csa.tail_len)
7350 return -EINVAL;
7351
7352 if (params.beacon_csa.tail[offset] != params.count)
7353 return -EINVAL;
7354 }
7355
16ef1fe2 7356 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7357 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7358 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7359 return -EINVAL;
7360
9a774c78
AO		 7361 params.n_counter_offsets_presp = len / sizeof(u16);
7362 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7363 (params.n_counter_offsets_presp >
9a774c78 7364 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7365 return -EINVAL;
9a774c78
AO		 7366
7367 params.counter_offsets_presp =
7368 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7369
7370 /* sanity checks - counters should fit and be the same */
7371 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7372 u16 offset = params.counter_offsets_presp[i];
7373
7374 if (offset >= params.beacon_csa.probe_resp_len)
7375 return -EINVAL;
7376
7377 if (params.beacon_csa.probe_resp[offset] !=
7378 params.count)
7379 return -EINVAL;
7380 }
16ef1fe2
SW		 7381 }
7382
ee4bc9e7 7383skip_beacons:
16ef1fe2
SW		 7384 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7385 if (err)
7386 return err;
7387
923b352f
AN		 7388 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7389 wdev->iftype))
16ef1fe2
SW		 7390 return -EINVAL;
7391
2beb6dab
LC		 7392 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7393 &params.chandef,
7394 wdev->iftype);
7395 if (err < 0)
7396 return err;
7397
dcc6c2f5 7398 if (err > 0)
2beb6dab 7399 params.radar_required = true;
16ef1fe2 7400
16ef1fe2
SW		 7401 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7402 params.block_tx = true;
7403
c56589ed
SW		 7404 wdev_lock(wdev);
7405 err = rdev_channel_switch(rdev, dev, &params);
7406 wdev_unlock(wdev);
7407
7408 return err;
16ef1fe2
SW		 7409}
7410
9720bb3a
JB		 7411static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7412 u32 seq, int flags,
2a519311 7413 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7414 struct wireless_dev *wdev,
7415 struct cfg80211_internal_bss *intbss)
2a519311 7416{
48ab905d 7417 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7418 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7419 void *hdr;
7420 struct nlattr *bss;
48ab905d
JB		 7421
7422 ASSERT_WDEV_LOCK(wdev);
2a519311 7423
15e47304 7424 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7425 NL80211_CMD_NEW_SCAN_RESULTS);
7426 if (!hdr)
7427 return -1;
7428
9720bb3a
JB		 7429 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7430
97990a06
JB		 7431 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7432 goto nla_put_failure;
7433 if (wdev->netdev &&
9360ffd1
DM		 7434 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7435 goto nla_put_failure;
2dad624e
ND		 7436 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7437 NL80211_ATTR_PAD))
97990a06 7438 goto nla_put_failure;
2a519311
JB		 7439
7440 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7441 if (!bss)
7442 goto nla_put_failure;
9360ffd1 7443 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7444 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7445 goto nla_put_failure;
9caf0364
JB		 7446
7447 rcu_read_lock();
0e227084
JB		 7448 /* indicate whether we have probe response data or not */
7449 if (rcu_access_pointer(res->proberesp_ies) &&
7450 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7451 goto fail_unlock_rcu;
7452
7453 /* this pointer prefers to be pointed to probe response data
7454 * but is always valid
7455 */
9caf0364 7456 ies = rcu_dereference(res->ies);
8cef2c9d 7457 if (ies) {
2dad624e
ND		 7458 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7459 NL80211_BSS_PAD))
8cef2c9d 7460 goto fail_unlock_rcu;
8cef2c9d
JB		 7461 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7462 ies->len, ies->data))
7463 goto fail_unlock_rcu;
9caf0364 7464 }
0e227084
JB		 7465
7466 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7467 ies = rcu_dereference(res->beacon_ies);
0e227084 7468 if (ies && ies->from_beacon) {
2dad624e
ND		 7469 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7470 NL80211_BSS_PAD))
8cef2c9d
JB		 7471 goto fail_unlock_rcu;
7472 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7473 ies->len, ies->data))
7474 goto fail_unlock_rcu;
9caf0364
JB		 7475 }
7476 rcu_read_unlock();
7477
9360ffd1
DM		 7478 if (res->beacon_interval &&
7479 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7480 goto nla_put_failure;
7481 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7482 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7483 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7484 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7485 jiffies_to_msecs(jiffies - intbss->ts)))
7486 goto nla_put_failure;
2a519311 7487
1d76250b
AS		 7488 if (intbss->parent_tsf &&
7489 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7490 intbss->parent_tsf, NL80211_BSS_PAD) ||
7491 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7492 intbss->parent_bssid)))
7493 goto nla_put_failure;
7494
6e19bc4b 7495 if (intbss->ts_boottime &&
2dad624e
ND		 7496 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7497 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7498 goto nla_put_failure;
7499
77965c97 7500 switch (rdev->wiphy.signal_type) {
2a519311 7501 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7502 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7503 goto nla_put_failure;
2a519311
JB		 7504 break;
7505 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7506 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7507 goto nla_put_failure;
2a519311
JB		 7508 break;
7509 default:
7510 break;
7511 }
7512
48ab905d 7513 switch (wdev->iftype) {
074ac8df 7514 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7515 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7516 if (intbss == wdev->current_bss &&
7517 nla_put_u32(msg, NL80211_BSS_STATUS,
7518 NL80211_BSS_STATUS_ASSOCIATED))
7519 goto nla_put_failure;
48ab905d
JB		 7520 break;
7521 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7522 if (intbss == wdev->current_bss &&
7523 nla_put_u32(msg, NL80211_BSS_STATUS,
7524 NL80211_BSS_STATUS_IBSS_JOINED))
7525 goto nla_put_failure;
48ab905d
JB		 7526 break;
7527 default:
7528 break;
7529 }
7530
2a519311
JB		 7531 nla_nest_end(msg, bss);
7532
053c095a
JB		 7533 genlmsg_end(msg, hdr);
7534 return 0;
2a519311 7535
8cef2c9d
JB		 7536 fail_unlock_rcu:
7537 rcu_read_unlock();
2a519311
JB		 7538 nla_put_failure:
7539 genlmsg_cancel(msg, hdr);
7540 return -EMSGSIZE;
7541}
7542
97990a06 7543static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7544{
48ab905d 7545 struct cfg80211_registered_device *rdev;
2a519311 7546 struct cfg80211_internal_bss *scan;
48ab905d 7547 struct wireless_dev *wdev;
97990a06 7548 int start = cb->args[2], idx = 0;
2a519311
JB		 7549 int err;
7550
97990a06 7551 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7552 if (err)
7553 return err;
2a519311 7554
48ab905d
JB		 7555 wdev_lock(wdev);
7556 spin_lock_bh(&rdev->bss_lock);
7557 cfg80211_bss_expire(rdev);
7558
9720bb3a
JB		 7559 cb->seq = rdev->bss_generation;
7560
48ab905d 7561 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7562 if (++idx <= start)
7563 continue;
9720bb3a 7564 if (nl80211_send_bss(skb, cb,
2a519311 7565 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7566 rdev, wdev, scan) < 0) {
2a519311 7567 idx--;
67748893 7568 break;
2a519311
JB		 7569 }
7570 }
7571
48ab905d
JB		 7572 spin_unlock_bh(&rdev->bss_lock);
7573 wdev_unlock(wdev);
2a519311 7574
97990a06
JB		 7575 cb->args[2] = idx;
7576 nl80211_finish_wdev_dump(rdev);
2a519311 7577
67748893 7578 return skb->len;
2a519311
JB		 7579}
7580
15e47304 7581static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7582 int flags, struct net_device *dev,
7583 bool allow_radio_stats,
7584 struct survey_info *survey)
61fa713c
HS		 7585{
7586 void *hdr;
7587 struct nlattr *infoattr;
7588
11f78ac3
JB		 7589 /* skip radio stats if userspace didn't request them */
7590 if (!survey->channel && !allow_radio_stats)
7591 return 0;
7592
15e47304 7593 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7594 NL80211_CMD_NEW_SURVEY_RESULTS);
7595 if (!hdr)
7596 return -ENOMEM;
7597
9360ffd1
DM		 7598 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7599 goto nla_put_failure;
61fa713c
HS		 7600
7601 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7602 if (!infoattr)
7603 goto nla_put_failure;
7604
11f78ac3
JB		 7605 if (survey->channel &&
7606 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7607 survey->channel->center_freq))
7608 goto nla_put_failure;
7609
7610 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7611 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7612 goto nla_put_failure;
7613 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7614 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7615 goto nla_put_failure;
4ed20beb 7616 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7617 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7618 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7619 goto nla_put_failure;
4ed20beb 7620 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7621 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7622 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7623 goto nla_put_failure;
4ed20beb 7624 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7625 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7626 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7627 goto nla_put_failure;
4ed20beb 7628 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7629 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7630 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7631 goto nla_put_failure;
4ed20beb 7632 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7633 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7634 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7635 goto nla_put_failure;
052536ab 7636 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7637 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7638 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7639 goto nla_put_failure;
61fa713c
HS		 7640
7641 nla_nest_end(msg, infoattr);
7642
053c095a
JB		 7643 genlmsg_end(msg, hdr);
7644 return 0;
61fa713c
HS		 7645
7646 nla_put_failure:
7647 genlmsg_cancel(msg, hdr);
7648 return -EMSGSIZE;
7649}
7650
11f78ac3 7651static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7652{
7653 struct survey_info survey;
1b8ec87a 7654 struct cfg80211_registered_device *rdev;
97990a06
JB		 7655 struct wireless_dev *wdev;
7656 int survey_idx = cb->args[2];
61fa713c 7657 int res;
11f78ac3 7658 bool radio_stats;
61fa713c 7659
1b8ec87a 7660 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7661 if (res)
7662 return res;
61fa713c 7663
11f78ac3
JB		 7664 /* prepare_wdev_dump parsed the attributes */
7665 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7666
97990a06
JB		 7667 if (!wdev->netdev) {
7668 res = -EINVAL;
7669 goto out_err;
7670 }
7671
1b8ec87a 7672 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7673 res = -EOPNOTSUPP;
7674 goto out_err;
7675 }
7676
7677 while (1) {
1b8ec87a 7678 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7679 if (res == -ENOENT)
7680 break;
7681 if (res)
7682 goto out_err;
7683
11f78ac3
JB		 7684 /* don't send disabled channels, but do send non-channel data */
7685 if (survey.channel &&
7686 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7687 survey_idx++;
7688 continue;
7689 }
7690
61fa713c 7691 if (nl80211_send_survey(skb,
15e47304 7692 NETLINK_CB(cb->skb).portid,
61fa713c 7693 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7694 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7695 goto out;
7696 survey_idx++;
7697 }
7698
7699 out:
97990a06 7700 cb->args[2] = survey_idx;
61fa713c
HS		 7701 res = skb->len;
7702 out_err:
1b8ec87a 7703 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7704 return res;
7705}
7706
b23aa676
SO		 7707static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7708{
7709 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7710 NL80211_WPA_VERSION_2));
7711}
7712
636a5d36
JM		 7713static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7714{
4c476991
JB		 7715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7716 struct net_device *dev = info->user_ptr[1];
19957bb3 7717 struct ieee80211_channel *chan;
e39e5b5e
JM		 7718 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7719 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7720 enum nl80211_auth_type auth_type;
fffd0934 7721 struct key_parse key;
d5cdfacb 7722 bool local_state_change;
636a5d36 7723
f4a11bb0
JB		 7724 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7725 return -EINVAL;
7726
7727 if (!info->attrs[NL80211_ATTR_MAC])
7728 return -EINVAL;
7729
1778092e
JM		 7730 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7731 return -EINVAL;
7732
19957bb3
JB		 7733 if (!info->attrs[NL80211_ATTR_SSID])
7734 return -EINVAL;
7735
7736 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7737 return -EINVAL;
7738
fffd0934
JB		 7739 err = nl80211_parse_key(info, &key);
7740 if (err)
7741 return err;
7742
7743 if (key.idx >= 0) {
e31b8213
JB		 7744 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7745 return -EINVAL;
fffd0934
JB		 7746 if (!key.p.key || !key.p.key_len)
7747 return -EINVAL;
7748 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7749 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7750 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7751 key.p.key_len != WLAN_KEY_LEN_WEP104))
7752 return -EINVAL;
b6b5555b 7753 if (key.idx > 3)
fffd0934
JB		 7754 return -EINVAL;
7755 } else {
7756 key.p.key_len = 0;
7757 key.p.key = NULL;
7758 }
7759
afea0b7a
JB		 7760 if (key.idx >= 0) {
7761 int i;
7762 bool ok = false;
7a087e74 7763
afea0b7a
JB		 7764 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7765 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7766 ok = true;
7767 break;
7768 }
7769 }
4c476991
JB		 7770 if (!ok)
7771 return -EINVAL;
afea0b7a
JB		 7772 }
7773
4c476991
JB		 7774 if (!rdev->ops->auth)
7775 return -EOPNOTSUPP;
636a5d36 7776
074ac8df 7777 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7778 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7779 return -EOPNOTSUPP;
eec60b03 7780
19957bb3 7781 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7782 chan = nl80211_get_valid_chan(&rdev->wiphy,
7783 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7784 if (!chan)
4c476991 7785 return -EINVAL;
636a5d36 7786
19957bb3
JB		 7787 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7788 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7789
7790 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7791 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7792 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7793 }
7794
19957bb3 7795 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7796 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7797 return -EINVAL;
636a5d36 7798
e39e5b5e
JM		 7799 if (auth_type == NL80211_AUTHTYPE_SAE &&
7800 !info->attrs[NL80211_ATTR_SAE_DATA])
7801 return -EINVAL;
7802
7803 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7804 if (auth_type != NL80211_AUTHTYPE_SAE)
7805 return -EINVAL;
7806 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7807 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7808 /* need to include at least Auth Transaction and Status Code */
7809 if (sae_data_len < 4)
7810 return -EINVAL;
7811 }
7812
d5cdfacb
JM		 7813 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7814
95de817b
JB		 7815 /*
7816 * Since we no longer track auth state, ignore
7817 * requests to only change local state.
7818 */
7819 if (local_state_change)
7820 return 0;
7821
91bf9b26
JB		 7822 wdev_lock(dev->ieee80211_ptr);
7823 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7824 ssid, ssid_len, ie, ie_len,
7825 key.p.key, key.p.key_len, key.idx,
7826 sae_data, sae_data_len);
7827 wdev_unlock(dev->ieee80211_ptr);
7828 return err;
636a5d36
JM		 7829}
7830
c0692b8f
JB		 7831static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7832 struct genl_info *info,
3dc27d25
JB		 7833 struct cfg80211_crypto_settings *settings,
7834 int cipher_limit)
b23aa676 7835{
c0b2bbd8
JB		 7836 memset(settings, 0, sizeof(*settings));
7837
b23aa676
SO		 7838 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7839
c0692b8f
JB		 7840 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7841 u16 proto;
7a087e74 7842
c0692b8f
JB		 7843 proto = nla_get_u16(
7844 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7845 settings->control_port_ethertype = cpu_to_be16(proto);
7846 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7847 proto != ETH_P_PAE)
7848 return -EINVAL;
7849 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7850 settings->control_port_no_encrypt = true;
7851 } else
7852 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7853
b23aa676
SO		 7854 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7855 void *data;
7856 int len, i;
7857
7858 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7859 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7860 settings->n_ciphers_pairwise = len / sizeof(u32);
7861
7862 if (len % sizeof(u32))
7863 return -EINVAL;
7864
3dc27d25 7865 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7866 return -EINVAL;
7867
7868 memcpy(settings->ciphers_pairwise, data, len);
7869
7870 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7871 if (!cfg80211_supported_cipher_suite(
7872 &rdev->wiphy,
b23aa676
SO		 7873 settings->ciphers_pairwise[i]))
7874 return -EINVAL;
7875 }
7876
7877 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7878 settings->cipher_group =
7879 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7880 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7881 settings->cipher_group))
b23aa676
SO		 7882 return -EINVAL;
7883 }
7884
7885 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7886 settings->wpa_versions =
7887 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7888 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7889 return -EINVAL;
7890 }
7891
7892 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7893 void *data;
6d30240e 7894 int len;
b23aa676
SO		 7895
7896 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7897 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7898 settings->n_akm_suites = len / sizeof(u32);
7899
7900 if (len % sizeof(u32))
7901 return -EINVAL;
7902
1b9ca027
JM		 7903 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7904 return -EINVAL;
7905
b23aa676 7906 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7907 }
7908
7909 return 0;
7910}
7911
636a5d36
JM		 7912static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7913{
4c476991
JB		 7914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7915 struct net_device *dev = info->user_ptr[1];
f444de05 7916 struct ieee80211_channel *chan;
f62fab73
JB		 7917 struct cfg80211_assoc_request req = {};
7918 const u8 *bssid, *ssid;
7919 int err, ssid_len = 0;
636a5d36 7920
f4a11bb0
JB		 7921 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7922 return -EINVAL;
7923
7924 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7925 !info->attrs[NL80211_ATTR_SSID] ||
7926 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7927 return -EINVAL;
7928
4c476991
JB		 7929 if (!rdev->ops->assoc)
7930 return -EOPNOTSUPP;
636a5d36 7931
074ac8df 7932 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7933 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7934 return -EOPNOTSUPP;
eec60b03 7935
19957bb3 7936 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7937
664834de
JM		 7938 chan = nl80211_get_valid_chan(&rdev->wiphy,
7939 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7940 if (!chan)
4c476991 7941 return -EINVAL;
636a5d36 7942
19957bb3
JB		 7943 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7944 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7945
7946 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7947 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7948 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7949 }
7950
dc6382ce 7951 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7952 enum nl80211_mfp mfp =
dc6382ce 7953 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7954 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7955 req.use_mfp = true;
4c476991
JB		 7956 else if (mfp != NL80211_MFP_NO)
7957 return -EINVAL;
dc6382ce
JM		 7958 }
7959
3e5d7649 7960 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7961 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7962
7e7c8926 7963 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7964 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7965
7966 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7967 memcpy(&req.ht_capa_mask,
7968 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7969 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7970
7971 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7972 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7973 return -EINVAL;
f62fab73
JB		 7974 memcpy(&req.ht_capa,
7975 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7976 sizeof(req.ht_capa));
7e7c8926
BG		 7977 }
7978
ee2aca34 7979 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7980 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7981
7982 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7983 memcpy(&req.vht_capa_mask,
7984 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7985 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7986
7987 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7988 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7989 return -EINVAL;
f62fab73
JB		 7990 memcpy(&req.vht_capa,
7991 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7992 sizeof(req.vht_capa));
ee2aca34
JB		 7993 }
7994
bab5ab7d 7995 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7996 if (!((rdev->wiphy.features &
7997 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7998 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7999 !wiphy_ext_feature_isset(&rdev->wiphy,
8000 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8001 return -EINVAL;
8002 req.flags |= ASSOC_REQ_USE_RRM;
8003 }
8004
f62fab73 8005 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8006 if (!err) {
8007 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 8008 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8009 ssid, ssid_len, &req);
91bf9b26
JB		 8010 wdev_unlock(dev->ieee80211_ptr);
8011 }
636a5d36 8012
636a5d36
JM		 8013 return err;
8014}
8015
8016static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8017{
4c476991
JB		 8018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8019 struct net_device *dev = info->user_ptr[1];
19957bb3 8020 const u8 *ie = NULL, *bssid;
91bf9b26 8021 int ie_len = 0, err;
19957bb3 8022 u16 reason_code;
d5cdfacb 8023 bool local_state_change;
636a5d36 8024
f4a11bb0
JB		 8025 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8026 return -EINVAL;
8027
8028 if (!info->attrs[NL80211_ATTR_MAC])
8029 return -EINVAL;
8030
8031 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8032 return -EINVAL;
8033
4c476991
JB		 8034 if (!rdev->ops->deauth)
8035 return -EOPNOTSUPP;
636a5d36 8036
074ac8df 8037 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8038 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8039 return -EOPNOTSUPP;
eec60b03 8040
19957bb3 8041 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8042
19957bb3
JB		 8043 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8044 if (reason_code == 0) {
f4a11bb0 8045 /* Reason Code 0 is reserved */
4c476991 8046 return -EINVAL;
255e737e 8047 }
636a5d36
JM		 8048
8049 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8050 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8051 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8052 }
8053
d5cdfacb
JM		 8054 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8055
91bf9b26
JB		 8056 wdev_lock(dev->ieee80211_ptr);
8057 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8058 local_state_change);
8059 wdev_unlock(dev->ieee80211_ptr);
8060 return err;
636a5d36
JM		 8061}
8062
8063static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8064{
4c476991
JB		 8065 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8066 struct net_device *dev = info->user_ptr[1];
19957bb3 8067 const u8 *ie = NULL, *bssid;
91bf9b26 8068 int ie_len = 0, err;
19957bb3 8069 u16 reason_code;
d5cdfacb 8070 bool local_state_change;
636a5d36 8071
f4a11bb0
JB		 8072 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8073 return -EINVAL;
8074
8075 if (!info->attrs[NL80211_ATTR_MAC])
8076 return -EINVAL;
8077
8078 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8079 return -EINVAL;
8080
4c476991
JB		 8081 if (!rdev->ops->disassoc)
8082 return -EOPNOTSUPP;
636a5d36 8083
074ac8df 8084 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8085 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8086 return -EOPNOTSUPP;
eec60b03 8087
19957bb3 8088 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8089
19957bb3
JB		 8090 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8091 if (reason_code == 0) {
f4a11bb0 8092 /* Reason Code 0 is reserved */
4c476991 8093 return -EINVAL;
255e737e 8094 }
636a5d36
JM		 8095
8096 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8097 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8098 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8099 }
8100
d5cdfacb
JM		 8101 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8102
91bf9b26
JB		 8103 wdev_lock(dev->ieee80211_ptr);
8104 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8105 local_state_change);
8106 wdev_unlock(dev->ieee80211_ptr);
8107 return err;
636a5d36
JM		 8108}
8109
dd5b4cc7
FF		 8110static bool
8111nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8112 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8113 int rateval)
8114{
8115 struct wiphy *wiphy = &rdev->wiphy;
8116 bool found = false;
8117 int band, i;
8118
57fbcce3 8119 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8120 struct ieee80211_supported_band *sband;
8121
8122 sband = wiphy->bands[band];
8123 if (!sband)
8124 continue;
8125
8126 for (i = 0; i < sband->n_bitrates; i++) {
8127 if (sband->bitrates[i].bitrate == rateval) {
8128 mcast_rate[band] = i + 1;
8129 found = true;
8130 break;
8131 }
8132 }
8133 }
8134
8135 return found;
8136}
8137
04a773ad
JB		 8138static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8139{
4c476991
JB		 8140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8141 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8142 struct cfg80211_ibss_params ibss;
8143 struct wiphy *wiphy;
fffd0934 8144 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8145 int err;
8146
8e30bc55
JB		 8147 memset(&ibss, 0, sizeof(ibss));
8148
04a773ad
JB		 8149 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8150 return -EINVAL;
8151
683b6d3b 8152 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8153 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8154 return -EINVAL;
8155
8e30bc55
JB		 8156 ibss.beacon_interval = 100;
8157
12d20fc9 8158 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8159 ibss.beacon_interval =
8160 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8161
0c317a02
PK		 8162 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8163 ibss.beacon_interval);
12d20fc9
PK		 8164 if (err)
8165 return err;
8e30bc55 8166
4c476991
JB		 8167 if (!rdev->ops->join_ibss)
8168 return -EOPNOTSUPP;
04a773ad 8169
4c476991
JB		 8170 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8171 return -EOPNOTSUPP;
04a773ad 8172
79c97e97 8173 wiphy = &rdev->wiphy;
04a773ad 8174
39193498 8175 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8176 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8177
8178 if (!is_valid_ether_addr(ibss.bssid))
8179 return -EINVAL;
8180 }
04a773ad
JB		 8181 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8182 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8183
8184 if (info->attrs[NL80211_ATTR_IE]) {
8185 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8186 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8187 }
8188
683b6d3b
JB		 8189 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8190 if (err)
8191 return err;
04a773ad 8192
174e0cd2
IP		 8193 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8194 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8195 return -EINVAL;
8196
2f301ab2 8197 switch (ibss.chandef.width) {
bf372645
SW		 8198 case NL80211_CHAN_WIDTH_5:
8199 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8200 case NL80211_CHAN_WIDTH_20_NOHT:
8201 break;
8202 case NL80211_CHAN_WIDTH_20:
8203 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8204 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8205 return -EINVAL;
8206 break;
8207 case NL80211_CHAN_WIDTH_80:
8208 case NL80211_CHAN_WIDTH_80P80:
8209 case NL80211_CHAN_WIDTH_160:
8210 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8211 return -EINVAL;
8212 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8213 NL80211_EXT_FEATURE_VHT_IBSS))
8214 return -EINVAL;
8215 break;
2f301ab2 8216 default:
c04d6150 8217 return -EINVAL;
2f301ab2 8218 }
db9c64cf 8219
04a773ad 8220 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8221 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8222
fbd2c8dc
TP		 8223 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8224 u8 *rates =
8225 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8226 int n_rates =
8227 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8228 struct ieee80211_supported_band *sband =
683b6d3b 8229 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8230
34850ab2
JB		 8231 err = ieee80211_get_ratemask(sband, rates, n_rates,
8232 &ibss.basic_rates);
8233 if (err)
8234 return err;
fbd2c8dc 8235 }
dd5b4cc7 8236
803768f5
SW		 8237 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8238 memcpy(&ibss.ht_capa_mask,
8239 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8240 sizeof(ibss.ht_capa_mask));
8241
8242 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8243 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8244 return -EINVAL;
8245 memcpy(&ibss.ht_capa,
8246 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8247 sizeof(ibss.ht_capa));
8248 }
8249
dd5b4cc7
FF		 8250 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8251 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8252 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8253 return -EINVAL;
fbd2c8dc 8254
4c476991 8255 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8256 bool no_ht = false;
8257
4c476991 8258 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8259 info->attrs[NL80211_ATTR_KEYS],
8260 &no_ht);
4c476991
JB		 8261 if (IS_ERR(connkeys))
8262 return PTR_ERR(connkeys);
de7044ee 8263
3d9d1d66
JB		 8264 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8265 no_ht) {
5e950a78 8266 kzfree(connkeys);
de7044ee
SM		 8267 return -EINVAL;
8268 }
4c476991 8269 }
04a773ad 8270
267335d6
AQ		 8271 ibss.control_port =
8272 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8273
5336fa88
SW		 8274 ibss.userspace_handles_dfs =
8275 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8276
4c476991 8277 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8278 if (err)
b47f610b 8279 kzfree(connkeys);
04a773ad
JB		 8280 return err;
8281}
8282
8283static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8284{
4c476991
JB		 8285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8286 struct net_device *dev = info->user_ptr[1];
04a773ad 8287
4c476991
JB		 8288 if (!rdev->ops->leave_ibss)
8289 return -EOPNOTSUPP;
04a773ad 8290
4c476991
JB		 8291 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8292 return -EOPNOTSUPP;
04a773ad 8293
4c476991 8294 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8295}
8296
f4e583c8
AQ		 8297static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8298{
8299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8300 struct net_device *dev = info->user_ptr[1];
57fbcce3 8301 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8302 u32 nla_rate;
8303 int err;
8304
8305 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8306 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8307 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8308 return -EOPNOTSUPP;
8309
8310 if (!rdev->ops->set_mcast_rate)
8311 return -EOPNOTSUPP;
8312
8313 memset(mcast_rate, 0, sizeof(mcast_rate));
8314
8315 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8316 return -EINVAL;
8317
8318 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8319 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8320 return -EINVAL;
8321
a1056b1b 8322 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8323
8324 return err;
8325}
8326
ad7e718c
JB		 8327static struct sk_buff *
8328__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8329 struct wireless_dev *wdev, int approxlen,
8330 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8331 enum nl80211_attrs attr,
8332 const struct nl80211_vendor_cmd_info *info,
8333 gfp_t gfp)
ad7e718c
JB		 8334{
8335 struct sk_buff *skb;
8336 void *hdr;
8337 struct nlattr *data;
8338
8339 skb = nlmsg_new(approxlen + 100, gfp);
8340 if (!skb)
8341 return NULL;
8342
8343 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8344 if (!hdr) {
8345 kfree_skb(skb);
8346 return NULL;
8347 }
8348
8349 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8350 goto nla_put_failure;
567ffc35
JB		 8351
8352 if (info) {
8353 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8354 info->vendor_id))
8355 goto nla_put_failure;
8356 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8357 info->subcmd))
8358 goto nla_put_failure;
8359 }
8360
6c09e791 8361 if (wdev) {
2dad624e
ND		 8362 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8363 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8364 goto nla_put_failure;
8365 if (wdev->netdev &&
8366 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8367 wdev->netdev->ifindex))
8368 goto nla_put_failure;
8369 }
8370
ad7e718c 8371 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8372 if (!data)
8373 goto nla_put_failure;
ad7e718c
JB		 8374
8375 ((void **)skb->cb)[0] = rdev;
8376 ((void **)skb->cb)[1] = hdr;
8377 ((void **)skb->cb)[2] = data;
8378
8379 return skb;
8380
8381 nla_put_failure:
8382 kfree_skb(skb);
8383 return NULL;
8384}
f4e583c8 8385
e03ad6ea 8386struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8387 struct wireless_dev *wdev,
e03ad6ea
JB		 8388 enum nl80211_commands cmd,
8389 enum nl80211_attrs attr,
8390 int vendor_event_idx,
8391 int approxlen, gfp_t gfp)
8392{
f26cbf40 8393 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8394 const struct nl80211_vendor_cmd_info *info;
8395
8396 switch (cmd) {
8397 case NL80211_CMD_TESTMODE:
8398 if (WARN_ON(vendor_event_idx != -1))
8399 return NULL;
8400 info = NULL;
8401 break;
8402 case NL80211_CMD_VENDOR:
8403 if (WARN_ON(vendor_event_idx < 0 ||
8404 vendor_event_idx >= wiphy->n_vendor_events))
8405 return NULL;
8406 info = &wiphy->vendor_events[vendor_event_idx];
8407 break;
8408 default:
8409 WARN_ON(1);
8410 return NULL;
8411 }
8412
6c09e791 8413 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8414 cmd, attr, info, gfp);
8415}
8416EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8417
8418void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8419{
8420 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8421 void *hdr = ((void **)skb->cb)[1];
8422 struct nlattr *data = ((void **)skb->cb)[2];
8423 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8424
bd8c78e7
JB		 8425 /* clear CB data for netlink core to own from now on */
8426 memset(skb->cb, 0, sizeof(skb->cb));
8427
e03ad6ea
JB		 8428 nla_nest_end(skb, data);
8429 genlmsg_end(skb, hdr);
8430
8431 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8432 mcgrp = NL80211_MCGRP_VENDOR;
8433
8434 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8435 mcgrp, gfp);
8436}
8437EXPORT_SYMBOL(__cfg80211_send_event_skb);
8438
aff89a9b 8439#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8440static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8441{
4c476991 8442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8443 struct wireless_dev *wdev =
8444 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8445 int err;
8446
fc73f11f
DS		 8447 if (!rdev->ops->testmode_cmd)
8448 return -EOPNOTSUPP;
8449
8450 if (IS_ERR(wdev)) {
8451 err = PTR_ERR(wdev);
8452 if (err != -EINVAL)
8453 return err;
8454 wdev = NULL;
8455 } else if (wdev->wiphy != &rdev->wiphy) {
8456 return -EINVAL;
8457 }
8458
aff89a9b
JB		 8459 if (!info->attrs[NL80211_ATTR_TESTDATA])
8460 return -EINVAL;
8461
ad7e718c 8462 rdev->cur_cmd_info = info;
fc73f11f 8463 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8464 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8465 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8466 rdev->cur_cmd_info = NULL;
aff89a9b 8467
aff89a9b
JB		 8468 return err;
8469}
8470
71063f0e
WYG		 8471static int nl80211_testmode_dump(struct sk_buff *skb,
8472 struct netlink_callback *cb)
8473{
00918d33 8474 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8475 int err;
8476 long phy_idx;
8477 void *data = NULL;
8478 int data_len = 0;
8479
5fe231e8
JB		 8480 rtnl_lock();
8481
71063f0e
WYG		 8482 if (cb->args[0]) {
8483 /*
8484 * 0 is a valid index, but not valid for args[0],
8485 * so we need to offset by 1.
8486 */
8487 phy_idx = cb->args[0] - 1;
8488 } else {
8489 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8490 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8491 nl80211_policy);
8492 if (err)
5fe231e8 8493 goto out_err;
00918d33 8494
2bd7e35d
JB		 8495 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8496 nl80211_fam.attrbuf);
8497 if (IS_ERR(rdev)) {
5fe231e8
JB		 8498 err = PTR_ERR(rdev);
8499 goto out_err;
00918d33 8500 }
2bd7e35d
JB		 8501 phy_idx = rdev->wiphy_idx;
8502 rdev = NULL;
2bd7e35d 8503
71063f0e
WYG		 8504 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8505 cb->args[1] =
8506 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8507 }
8508
8509 if (cb->args[1]) {
8510 data = nla_data((void *)cb->args[1]);
8511 data_len = nla_len((void *)cb->args[1]);
8512 }
8513
00918d33
JB		 8514 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8515 if (!rdev) {
5fe231e8
JB		 8516 err = -ENOENT;
8517 goto out_err;
71063f0e 8518 }
71063f0e 8519
00918d33 8520 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8521 err = -EOPNOTSUPP;
8522 goto out_err;
8523 }
8524
8525 while (1) {
15e47304 8526 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8527 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8528 NL80211_CMD_TESTMODE);
8529 struct nlattr *tmdata;
8530
cb35fba3
DC		 8531 if (!hdr)
8532 break;
8533
9360ffd1 8534 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8535 genlmsg_cancel(skb, hdr);
8536 break;
8537 }
8538
8539 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8540 if (!tmdata) {
8541 genlmsg_cancel(skb, hdr);
8542 break;
8543 }
e35e4d28 8544 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8545 nla_nest_end(skb, tmdata);
8546
8547 if (err == -ENOBUFS || err == -ENOENT) {
8548 genlmsg_cancel(skb, hdr);
8549 break;
8550 } else if (err) {
8551 genlmsg_cancel(skb, hdr);
8552 goto out_err;
8553 }
8554
8555 genlmsg_end(skb, hdr);
8556 }
8557
8558 err = skb->len;
8559 /* see above */
8560 cb->args[0] = phy_idx + 1;
8561 out_err:
5fe231e8 8562 rtnl_unlock();
71063f0e
WYG		 8563 return err;
8564}
aff89a9b
JB		 8565#endif
8566
b23aa676
SO		 8567static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8568{
4c476991
JB		 8569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8570 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8571 struct cfg80211_connect_params connect;
8572 struct wiphy *wiphy;
fffd0934 8573 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8574 int err;
8575
8576 memset(&connect, 0, sizeof(connect));
8577
8578 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8579 return -EINVAL;
8580
8581 if (!info->attrs[NL80211_ATTR_SSID] ||
8582 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8583 return -EINVAL;
8584
8585 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8586 connect.auth_type =
8587 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8588 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8589 NL80211_CMD_CONNECT))
b23aa676
SO		 8590 return -EINVAL;
8591 } else
8592 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8593
8594 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8595
c0692b8f 8596 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8597 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8598 if (err)
8599 return err;
b23aa676 8600
074ac8df 8601 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8602 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8603 return -EOPNOTSUPP;
b23aa676 8604
79c97e97 8605 wiphy = &rdev->wiphy;
b23aa676 8606
4486ea98
BS		 8607 connect.bg_scan_period = -1;
8608 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8609 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8610 connect.bg_scan_period =
8611 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8612 }
8613
b23aa676
SO		 8614 if (info->attrs[NL80211_ATTR_MAC])
8615 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8616 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8617 connect.bssid_hint =
8618 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8619 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8620 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8621
8622 if (info->attrs[NL80211_ATTR_IE]) {
8623 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8624 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8625 }
8626
cee00a95
JM		 8627 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8628 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8629 if (connect.mfp != NL80211_MFP_REQUIRED &&
8630 connect.mfp != NL80211_MFP_NO)
8631 return -EINVAL;
8632 } else {
8633 connect.mfp = NL80211_MFP_NO;
8634 }
8635
ba6fbacf
JM		 8636 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8637 connect.prev_bssid =
8638 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8639
b23aa676 8640 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8641 connect.channel = nl80211_get_valid_chan(
8642 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8643 if (!connect.channel)
1df4a510
JM		 8644 return -EINVAL;
8645 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8646 connect.channel_hint = nl80211_get_valid_chan(
8647 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8648 if (!connect.channel_hint)
4c476991 8649 return -EINVAL;
b23aa676
SO		 8650 }
8651
fffd0934
JB		 8652 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8653 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8654 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8655 if (IS_ERR(connkeys))
8656 return PTR_ERR(connkeys);
fffd0934
JB		 8657 }
8658
7e7c8926
BG		 8659 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8660 connect.flags |= ASSOC_REQ_DISABLE_HT;
8661
8662 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8663 memcpy(&connect.ht_capa_mask,
8664 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8665 sizeof(connect.ht_capa_mask));
8666
8667 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8668 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8669 kzfree(connkeys);
7e7c8926 8670 return -EINVAL;
b4e4f47e 8671 }
7e7c8926
BG		 8672 memcpy(&connect.ht_capa,
8673 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8674 sizeof(connect.ht_capa));
8675 }
8676
ee2aca34
JB		 8677 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8678 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8679
8680 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8681 memcpy(&connect.vht_capa_mask,
8682 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8683 sizeof(connect.vht_capa_mask));
8684
8685 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8686 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8687 kzfree(connkeys);
ee2aca34
JB		 8688 return -EINVAL;
8689 }
8690 memcpy(&connect.vht_capa,
8691 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8692 sizeof(connect.vht_capa));
8693 }
8694
bab5ab7d 8695 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8696 if (!((rdev->wiphy.features &
8697 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8698 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8699 !wiphy_ext_feature_isset(&rdev->wiphy,
8700 NL80211_EXT_FEATURE_RRM)) {
707554b4 8701 kzfree(connkeys);
bab5ab7d 8702 return -EINVAL;
707554b4 8703 }
bab5ab7d
AK		 8704 connect.flags |= ASSOC_REQ_USE_RRM;
8705 }
8706
34d50519 8707 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8708 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8709 kzfree(connkeys);
8710 return -EOPNOTSUPP;
8711 }
8712
38de03d2
AS		 8713 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8714 /* bss selection makes no sense if bssid is set */
8715 if (connect.bssid) {
8716 kzfree(connkeys);
8717 return -EINVAL;
8718 }
8719
8720 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8721 wiphy, &connect.bss_select);
8722 if (err) {
8723 kzfree(connkeys);
8724 return err;
8725 }
8726 }
8727
83739b03 8728 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8729 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8730 connect.prev_bssid);
83739b03 8731 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8732 if (err)
b47f610b 8733 kzfree(connkeys);
b23aa676
SO		 8734 return err;
8735}
8736
8737static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8738{
4c476991
JB		 8739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8740 struct net_device *dev = info->user_ptr[1];
b23aa676 8741 u16 reason;
83739b03 8742 int ret;
b23aa676
SO		 8743
8744 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8745 reason = WLAN_REASON_DEAUTH_LEAVING;
8746 else
8747 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8748
8749 if (reason == 0)
8750 return -EINVAL;
8751
074ac8df 8752 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8753 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8754 return -EOPNOTSUPP;
b23aa676 8755
83739b03
JB		 8756 wdev_lock(dev->ieee80211_ptr);
8757 ret = cfg80211_disconnect(rdev, dev, reason, true);
8758 wdev_unlock(dev->ieee80211_ptr);
8759 return ret;
b23aa676
SO		 8760}
8761
463d0183
JB		 8762static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8763{
4c476991 8764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8765 struct net *net;
8766 int err;
463d0183 8767
4b681c82
VK		 8768 if (info->attrs[NL80211_ATTR_PID]) {
8769 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8770
8771 net = get_net_ns_by_pid(pid);
8772 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8773 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8774
4b681c82
VK		 8775 net = get_net_ns_by_fd(fd);
8776 } else {
8777 return -EINVAL;
8778 }
463d0183 8779
4c476991
JB		 8780 if (IS_ERR(net))
8781 return PTR_ERR(net);
463d0183
JB		 8782
8783 err = 0;
8784
8785 /* check if anything to do */
4c476991
JB		 8786 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8787 err = cfg80211_switch_netns(rdev, net);
463d0183 8788
463d0183 8789 put_net(net);
463d0183
JB		 8790 return err;
8791}
8792
67fbb16b
SO		 8793static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8794{
4c476991 8795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8796 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8797 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8798 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8799 struct cfg80211_pmksa pmksa;
8800
8801 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8802
8803 if (!info->attrs[NL80211_ATTR_MAC])
8804 return -EINVAL;
8805
8806 if (!info->attrs[NL80211_ATTR_PMKID])
8807 return -EINVAL;
8808
67fbb16b
SO		 8809 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8810 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8811
074ac8df 8812 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8813 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8814 return -EOPNOTSUPP;
67fbb16b
SO		 8815
8816 switch (info->genlhdr->cmd) {
8817 case NL80211_CMD_SET_PMKSA:
8818 rdev_ops = rdev->ops->set_pmksa;
8819 break;
8820 case NL80211_CMD_DEL_PMKSA:
8821 rdev_ops = rdev->ops->del_pmksa;
8822 break;
8823 default:
8824 WARN_ON(1);
8825 break;
8826 }
8827
4c476991
JB		 8828 if (!rdev_ops)
8829 return -EOPNOTSUPP;
67fbb16b 8830
4c476991 8831 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8832}
8833
8834static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8835{
4c476991
JB		 8836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8837 struct net_device *dev = info->user_ptr[1];
67fbb16b 8838
074ac8df 8839 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8840 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8841 return -EOPNOTSUPP;
67fbb16b 8842
4c476991
JB		 8843 if (!rdev->ops->flush_pmksa)
8844 return -EOPNOTSUPP;
67fbb16b 8845
e35e4d28 8846 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8847}
8848
109086ce
AN		 8849static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8850{
8851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8852 struct net_device *dev = info->user_ptr[1];
8853 u8 action_code, dialog_token;
df942e7b 8854 u32 peer_capability = 0;
109086ce
AN		 8855 u16 status_code;
8856 u8 *peer;
31fa97c5 8857 bool initiator;
109086ce
AN		 8858
8859 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8860 !rdev->ops->tdls_mgmt)
8861 return -EOPNOTSUPP;
8862
8863 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8864 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8865 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8866 !info->attrs[NL80211_ATTR_IE] ||
8867 !info->attrs[NL80211_ATTR_MAC])
8868 return -EINVAL;
8869
8870 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8871 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8872 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8873 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8874 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8875 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8876 peer_capability =
8877 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8878
e35e4d28 8879 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8880 dialog_token, status_code, peer_capability,
31fa97c5 8881 initiator,
e35e4d28
HG		 8882 nla_data(info->attrs[NL80211_ATTR_IE]),
8883 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8884}
8885
8886static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8887{
8888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8889 struct net_device *dev = info->user_ptr[1];
8890 enum nl80211_tdls_operation operation;
8891 u8 *peer;
8892
8893 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8894 !rdev->ops->tdls_oper)
8895 return -EOPNOTSUPP;
8896
8897 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8898 !info->attrs[NL80211_ATTR_MAC])
8899 return -EINVAL;
8900
8901 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8902 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8903
e35e4d28 8904 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8905}
8906
9588bbd5
JM		 8907static int nl80211_remain_on_channel(struct sk_buff *skb,
8908 struct genl_info *info)
8909{
4c476991 8910 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8911 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8912 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8913 struct sk_buff *msg;
8914 void *hdr;
8915 u64 cookie;
683b6d3b 8916 u32 duration;
9588bbd5
JM		 8917 int err;
8918
8919 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8920 !info->attrs[NL80211_ATTR_DURATION])
8921 return -EINVAL;
8922
8923 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8924
ebf348fc
JB		 8925 if (!rdev->ops->remain_on_channel ||
8926 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8927 return -EOPNOTSUPP;
8928
9588bbd5 8929 /*
ebf348fc
JB		 8930 * We should be on that channel for at least a minimum amount of
8931 * time (10ms) but no longer than the driver supports.
9588bbd5 8932 */
ebf348fc 8933 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8934 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8935 return -EINVAL;
8936
683b6d3b
JB		 8937 err = nl80211_parse_chandef(rdev, info, &chandef);
8938 if (err)
8939 return err;
9588bbd5
JM		 8940
8941 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8942 if (!msg)
8943 return -ENOMEM;
9588bbd5 8944
15e47304 8945 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8946 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8947 if (!hdr) {
8948 err = -ENOBUFS;
9588bbd5
JM		 8949 goto free_msg;
8950 }
8951
683b6d3b
JB		 8952 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8953 duration, &cookie);
9588bbd5
JM		 8954
8955 if (err)
8956 goto free_msg;
8957
2dad624e
ND		 8958 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8959 NL80211_ATTR_PAD))
9360ffd1 8960 goto nla_put_failure;
9588bbd5
JM		 8961
8962 genlmsg_end(msg, hdr);
4c476991
JB		 8963
8964 return genlmsg_reply(msg, info);
9588bbd5
JM		 8965
8966 nla_put_failure:
8967 err = -ENOBUFS;
8968 free_msg:
8969 nlmsg_free(msg);
9588bbd5
JM		 8970 return err;
8971}
8972
8973static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8974 struct genl_info *info)
8975{
4c476991 8976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8977 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8978 u64 cookie;
9588bbd5
JM		 8979
8980 if (!info->attrs[NL80211_ATTR_COOKIE])
8981 return -EINVAL;
8982
4c476991
JB		 8983 if (!rdev->ops->cancel_remain_on_channel)
8984 return -EOPNOTSUPP;
9588bbd5 8985
9588bbd5
JM		 8986 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8987
e35e4d28 8988 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8989}
8990
13ae75b1
JM		 8991static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8992 struct genl_info *info)
8993{
13ae75b1 8994 struct cfg80211_bitrate_mask mask;
a7c7fbff 8995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8996 struct net_device *dev = info->user_ptr[1];
a7c7fbff 8997 int err;
13ae75b1 8998
4c476991
JB		 8999 if (!rdev->ops->set_bitrate_mask)
9000 return -EOPNOTSUPP;
13ae75b1 9001
a7c7fbff
PK		 9002 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9003 if (err)
9004 return err;
13ae75b1 9005
e35e4d28 9006 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9007}
9008
2e161f78 9009static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9010{
4c476991 9011 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9012 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9013 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9014
9015 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9016 return -EINVAL;
9017
2e161f78
JB		 9018 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9019 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9020
71bbc994
JB		 9021 switch (wdev->iftype) {
9022 case NL80211_IFTYPE_STATION:
9023 case NL80211_IFTYPE_ADHOC:
9024 case NL80211_IFTYPE_P2P_CLIENT:
9025 case NL80211_IFTYPE_AP:
9026 case NL80211_IFTYPE_AP_VLAN:
9027 case NL80211_IFTYPE_MESH_POINT:
9028 case NL80211_IFTYPE_P2P_GO:
98104fde 9029 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9030 break;
cb3b7d87 9031 case NL80211_IFTYPE_NAN:
71bbc994 9032 default:
4c476991 9033 return -EOPNOTSUPP;
71bbc994 9034 }
026331c4
JM		 9035
9036 /* not much point in registering if we can't reply */
4c476991
JB		 9037 if (!rdev->ops->mgmt_tx)
9038 return -EOPNOTSUPP;
026331c4 9039
15e47304 9040 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9041 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9042 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9043}
9044
2e161f78 9045static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9046{
4c476991 9047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9048 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9049 struct cfg80211_chan_def chandef;
026331c4 9050 int err;
d64d373f 9051 void *hdr = NULL;
026331c4 9052 u64 cookie;
e247bd90 9053 struct sk_buff *msg = NULL;
b176e629
AO		 9054 struct cfg80211_mgmt_tx_params params = {
9055 .dont_wait_for_ack =
9056 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9057 };
026331c4 9058
683b6d3b 9059 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9060 return -EINVAL;
9061
4c476991
JB		 9062 if (!rdev->ops->mgmt_tx)
9063 return -EOPNOTSUPP;
026331c4 9064
71bbc994 9065 switch (wdev->iftype) {
ea141b75
AQ		 9066 case NL80211_IFTYPE_P2P_DEVICE:
9067 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9068 return -EINVAL;
71bbc994
JB		 9069 case NL80211_IFTYPE_STATION:
9070 case NL80211_IFTYPE_ADHOC:
9071 case NL80211_IFTYPE_P2P_CLIENT:
9072 case NL80211_IFTYPE_AP:
9073 case NL80211_IFTYPE_AP_VLAN:
9074 case NL80211_IFTYPE_MESH_POINT:
9075 case NL80211_IFTYPE_P2P_GO:
9076 break;
cb3b7d87 9077 case NL80211_IFTYPE_NAN:
71bbc994 9078 default:
4c476991 9079 return -EOPNOTSUPP;
71bbc994 9080 }
026331c4 9081
f7ca38df 9082 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9083 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9084 return -EINVAL;
b176e629 9085 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9086
9087 /*
9088 * We should wait on the channel for at least a minimum amount
9089 * of time (10ms) but no longer than the driver supports.
9090 */
b176e629
AO		 9091 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9092 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9093 return -EINVAL;
f7ca38df
JB		 9094 }
9095
b176e629 9096 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9097
b176e629 9098 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9099 return -EINVAL;
9100
b176e629 9101 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9102
ea141b75
AQ		 9103 /* get the channel if any has been specified, otherwise pass NULL to
9104 * the driver. The latter will use the current one
9105 */
9106 chandef.chan = NULL;
9107 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9108 err = nl80211_parse_chandef(rdev, info, &chandef);
9109 if (err)
9110 return err;
9111 }
9112
b176e629 9113 if (!chandef.chan && params.offchan)
ea141b75 9114 return -EINVAL;
026331c4 9115
34d22ce2
AO		 9116 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9117 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9118
9119 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9120 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9121 int i;
9122
9123 if (len % sizeof(u16))
9124 return -EINVAL;
9125
9126 params.n_csa_offsets = len / sizeof(u16);
9127 params.csa_offsets =
9128 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9129
9130 /* check that all the offsets fit the frame */
9131 for (i = 0; i < params.n_csa_offsets; i++) {
9132 if (params.csa_offsets[i] >= params.len)
9133 return -EINVAL;
9134 }
9135 }
9136
b176e629 9137 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9138 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9139 if (!msg)
9140 return -ENOMEM;
026331c4 9141
15e47304 9142 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9143 NL80211_CMD_FRAME);
cb35fba3
DC		 9144 if (!hdr) {
9145 err = -ENOBUFS;
e247bd90
JB		 9146 goto free_msg;
9147 }
026331c4 9148 }
e247bd90 9149
b176e629
AO		 9150 params.chan = chandef.chan;
9151 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9152 if (err)
9153 goto free_msg;
9154
e247bd90 9155 if (msg) {
2dad624e
ND		 9156 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9157 NL80211_ATTR_PAD))
9360ffd1 9158 goto nla_put_failure;
026331c4 9159
e247bd90
JB		 9160 genlmsg_end(msg, hdr);
9161 return genlmsg_reply(msg, info);
9162 }
9163
9164 return 0;
026331c4
JM		 9165
9166 nla_put_failure:
9167 err = -ENOBUFS;
9168 free_msg:
9169 nlmsg_free(msg);
026331c4
JM		 9170 return err;
9171}
9172
f7ca38df
JB		 9173static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9174{
9175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9176 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9177 u64 cookie;
9178
9179 if (!info->attrs[NL80211_ATTR_COOKIE])
9180 return -EINVAL;
9181
9182 if (!rdev->ops->mgmt_tx_cancel_wait)
9183 return -EOPNOTSUPP;
9184
71bbc994
JB		 9185 switch (wdev->iftype) {
9186 case NL80211_IFTYPE_STATION:
9187 case NL80211_IFTYPE_ADHOC:
9188 case NL80211_IFTYPE_P2P_CLIENT:
9189 case NL80211_IFTYPE_AP:
9190 case NL80211_IFTYPE_AP_VLAN:
9191 case NL80211_IFTYPE_P2P_GO:
98104fde 9192 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9193 break;
cb3b7d87 9194 case NL80211_IFTYPE_NAN:
71bbc994 9195 default:
f7ca38df 9196 return -EOPNOTSUPP;
71bbc994 9197 }
f7ca38df
JB		 9198
9199 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9200
e35e4d28 9201 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9202}
9203
ffb9eb3d
KV		 9204static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9205{
4c476991 9206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9207 struct wireless_dev *wdev;
4c476991 9208 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9209 u8 ps_state;
9210 bool state;
9211 int err;
9212
4c476991
JB		 9213 if (!info->attrs[NL80211_ATTR_PS_STATE])
9214 return -EINVAL;
ffb9eb3d
KV		 9215
9216 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9217
4c476991
JB		 9218 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9219 return -EINVAL;
ffb9eb3d
KV		 9220
9221 wdev = dev->ieee80211_ptr;
9222
4c476991
JB		 9223 if (!rdev->ops->set_power_mgmt)
9224 return -EOPNOTSUPP;
ffb9eb3d
KV		 9225
9226 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9227
9228 if (state == wdev->ps)
4c476991 9229 return 0;
ffb9eb3d 9230
e35e4d28 9231 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9232 if (!err)
9233 wdev->ps = state;
ffb9eb3d
KV		 9234 return err;
9235}
9236
9237static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9238{
4c476991 9239 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9240 enum nl80211_ps_state ps_state;
9241 struct wireless_dev *wdev;
4c476991 9242 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9243 struct sk_buff *msg;
9244 void *hdr;
9245 int err;
9246
ffb9eb3d
KV		 9247 wdev = dev->ieee80211_ptr;
9248
4c476991
JB		 9249 if (!rdev->ops->set_power_mgmt)
9250 return -EOPNOTSUPP;
ffb9eb3d
KV		 9251
9252 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9253 if (!msg)
9254 return -ENOMEM;
ffb9eb3d 9255
15e47304 9256 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9257 NL80211_CMD_GET_POWER_SAVE);
9258 if (!hdr) {
4c476991 9259 err = -ENOBUFS;
ffb9eb3d
KV		 9260 goto free_msg;
9261 }
9262
9263 if (wdev->ps)
9264 ps_state = NL80211_PS_ENABLED;
9265 else
9266 ps_state = NL80211_PS_DISABLED;
9267
9360ffd1
DM		 9268 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9269 goto nla_put_failure;
ffb9eb3d
KV		 9270
9271 genlmsg_end(msg, hdr);
4c476991 9272 return genlmsg_reply(msg, info);
ffb9eb3d 9273
4c476991 9274 nla_put_failure:
ffb9eb3d 9275 err = -ENOBUFS;
4c476991 9276 free_msg:
ffb9eb3d 9277 nlmsg_free(msg);
ffb9eb3d
KV		 9278 return err;
9279}
9280
94e860f1
JB		 9281static const struct nla_policy
9282nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9283 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9284 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9285 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9286 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9287 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9288 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9289};
9290
84f10708 9291static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9292 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9293{
9294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9295 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9296 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9297
d9d8b019 9298 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9299 return -EINVAL;
9300
84f10708
TP		 9301 if (!rdev->ops->set_cqm_txe_config)
9302 return -EOPNOTSUPP;
9303
9304 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9305 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9306 return -EOPNOTSUPP;
9307
e35e4d28 9308 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9309}
9310
d6dc1a38
JO		 9311static int nl80211_set_cqm_rssi(struct genl_info *info,
9312 s32 threshold, u32 hysteresis)
9313{
4c476991 9314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9315 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9316 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9317
9318 if (threshold > 0)
9319 return -EINVAL;
9320
1da5fcc8
JB		 9321 /* disabling - hysteresis should also be zero then */
9322 if (threshold == 0)
9323 hysteresis = 0;
d6dc1a38 9324
4c476991
JB		 9325 if (!rdev->ops->set_cqm_rssi_config)
9326 return -EOPNOTSUPP;
d6dc1a38 9327
074ac8df 9328 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9329 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9330 return -EOPNOTSUPP;
d6dc1a38 9331
e35e4d28 9332 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9333}
9334
9335static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9336{
9337 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9338 struct nlattr *cqm;
9339 int err;
9340
9341 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9342 if (!cqm)
9343 return -EINVAL;
d6dc1a38
JO		 9344
9345 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9346 nl80211_attr_cqm_policy);
9347 if (err)
1da5fcc8 9348 return err;
d6dc1a38
JO		 9349
9350 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9351 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9352 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9353 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9354
1da5fcc8
JB		 9355 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9356 }
9357
9358 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9359 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9360 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9361 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9362 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9363 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9364
9365 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9366 }
9367
9368 return -EINVAL;
d6dc1a38
JO		 9369}
9370
6e0bd6c3
RL		 9371static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9372{
9373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9374 struct net_device *dev = info->user_ptr[1];
9375 struct ocb_setup setup = {};
9376 int err;
9377
9378 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9379 if (err)
9380 return err;
9381
9382 return cfg80211_join_ocb(rdev, dev, &setup);
9383}
9384
9385static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9386{
9387 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9388 struct net_device *dev = info->user_ptr[1];
9389
9390 return cfg80211_leave_ocb(rdev, dev);
9391}
9392
29cbe68c
JB		 9393static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9394{
9395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9396 struct net_device *dev = info->user_ptr[1];
9397 struct mesh_config cfg;
c80d545d 9398 struct mesh_setup setup;
29cbe68c
JB		 9399 int err;
9400
9401 /* start with default */
9402 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9403 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9404
24bdd9f4 9405 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9406 /* and parse parameters if given */
24bdd9f4 9407 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9408 if (err)
9409 return err;
9410 }
9411
9412 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9413 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9414 return -EINVAL;
9415
c80d545d
JC		 9416 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9417 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9418
4bb62344
CYY		 9419 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9420 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9421 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9422 return -EINVAL;
9423
9bdbf04d
MP		 9424 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9425 setup.beacon_interval =
9426 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 9427
0c317a02
PK		 9428 err = cfg80211_validate_beacon_int(rdev,
9429 NL80211_IFTYPE_MESH_POINT,
9430 setup.beacon_interval);
12d20fc9
PK		 9431 if (err)
9432 return err;
9bdbf04d
MP		 9433 }
9434
9435 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9436 setup.dtim_period =
9437 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9438 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9439 return -EINVAL;
9440 }
9441
c80d545d
JC		 9442 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9443 /* parse additional setup parameters if given */
9444 err = nl80211_parse_mesh_setup(info, &setup);
9445 if (err)
9446 return err;
9447 }
9448
d37bb18a
TP		 9449 if (setup.user_mpm)
9450 cfg.auto_open_plinks = false;
9451
cc1d2806 9452 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9453 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9454 if (err)
9455 return err;
cc1d2806
JB		 9456 } else {
9457 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9458 setup.chandef.chan = NULL;
cc1d2806
JB		 9459 }
9460
ffb3cf30
AN		 9461 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9462 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9463 int n_rates =
9464 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9465 struct ieee80211_supported_band *sband;
9466
9467 if (!setup.chandef.chan)
9468 return -EINVAL;
9469
9470 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9471
9472 err = ieee80211_get_ratemask(sband, rates, n_rates,
9473 &setup.basic_rates);
9474 if (err)
9475 return err;
9476 }
9477
8564e382
JB		 9478 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9479 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9480 if (err)
9481 return err;
9482
9483 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9484 &setup.beacon_rate);
9485 if (err)
9486 return err;
9487 }
9488
c80d545d 9489 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9490}
9491
9492static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9493{
9494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9495 struct net_device *dev = info->user_ptr[1];
9496
9497 return cfg80211_leave_mesh(rdev, dev);
9498}
9499
dfb89c56 9500#ifdef CONFIG_PM
bb92d199
AK		 9501static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9502 struct cfg80211_registered_device *rdev)
9503{
6abb9cb9 9504 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9505 struct nlattr *nl_pats, *nl_pat;
9506 int i, pat_len;
9507
6abb9cb9 9508 if (!wowlan->n_patterns)
bb92d199
AK		 9509 return 0;
9510
9511 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9512 if (!nl_pats)
9513 return -ENOBUFS;
9514
6abb9cb9 9515 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9516 nl_pat = nla_nest_start(msg, i + 1);
9517 if (!nl_pat)
9518 return -ENOBUFS;
6abb9cb9 9519 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9520 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9521 wowlan->patterns[i].mask) ||
50ac6607
AK		 9522 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9523 wowlan->patterns[i].pattern) ||
9524 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9525 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9526 return -ENOBUFS;
9527 nla_nest_end(msg, nl_pat);
9528 }
9529 nla_nest_end(msg, nl_pats);
9530
9531 return 0;
9532}
9533
2a0e047e
JB		 9534static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9535 struct cfg80211_wowlan_tcp *tcp)
9536{
9537 struct nlattr *nl_tcp;
9538
9539 if (!tcp)
9540 return 0;
9541
9542 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9543 if (!nl_tcp)
9544 return -ENOBUFS;
9545
930345ea
JB		 9546 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9547 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9548 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9549 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9550 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9551 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9552 tcp->payload_len, tcp->payload) ||
9553 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9554 tcp->data_interval) ||
9555 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9556 tcp->wake_len, tcp->wake_data) ||
9557 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9558 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9559 return -ENOBUFS;
9560
9561 if (tcp->payload_seq.len &&
9562 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9563 sizeof(tcp->payload_seq), &tcp->payload_seq))
9564 return -ENOBUFS;
9565
9566 if (tcp->payload_tok.len &&
9567 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9568 sizeof(tcp->payload_tok) + tcp->tokens_size,
9569 &tcp->payload_tok))
9570 return -ENOBUFS;
9571
e248ad30
JB		 9572 nla_nest_end(msg, nl_tcp);
9573
2a0e047e
JB		 9574 return 0;
9575}
9576
75453ccb
LC		 9577static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9578 struct cfg80211_sched_scan_request *req)
9579{
3b06d277 9580 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9581 int i;
9582
9583 if (!req)
9584 return 0;
9585
9586 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9587 if (!nd)
9588 return -ENOBUFS;
9589
3b06d277
AS		 9590 if (req->n_scan_plans == 1 &&
9591 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9592 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9593 return -ENOBUFS;
9594
21fea567
LC		 9595 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9596 return -ENOBUFS;
9597
75453ccb
LC		 9598 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9599 if (!freqs)
9600 return -ENOBUFS;
9601
53b18980
JB		 9602 for (i = 0; i < req->n_channels; i++) {
9603 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9604 return -ENOBUFS;
9605 }
75453ccb
LC		 9606
9607 nla_nest_end(msg, freqs);
9608
9609 if (req->n_match_sets) {
9610 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 9611 if (!matches)
9612 return -ENOBUFS;
9613
75453ccb
LC		 9614 for (i = 0; i < req->n_match_sets; i++) {
9615 match = nla_nest_start(msg, i);
76e1fb4b
JB		 9616 if (!match)
9617 return -ENOBUFS;
9618
53b18980
JB		 9619 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9620 req->match_sets[i].ssid.ssid_len,
9621 req->match_sets[i].ssid.ssid))
9622 return -ENOBUFS;
75453ccb
LC		 9623 nla_nest_end(msg, match);
9624 }
9625 nla_nest_end(msg, matches);
9626 }
9627
3b06d277
AS		 9628 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9629 if (!scan_plans)
9630 return -ENOBUFS;
9631
9632 for (i = 0; i < req->n_scan_plans; i++) {
9633 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 9634 if (!scan_plan)
9635 return -ENOBUFS;
9636
3b06d277
AS		 9637 if (!scan_plan ||
9638 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9639 req->scan_plans[i].interval) ||
9640 (req->scan_plans[i].iterations &&
9641 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9642 req->scan_plans[i].iterations)))
9643 return -ENOBUFS;
9644 nla_nest_end(msg, scan_plan);
9645 }
9646 nla_nest_end(msg, scan_plans);
9647
75453ccb
LC		 9648 nla_nest_end(msg, nd);
9649
9650 return 0;
9651}
9652
ff1b6e69
JB		 9653static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9654{
9655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9656 struct sk_buff *msg;
9657 void *hdr;
2a0e047e 9658 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9659
964dc9e2 9660 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9661 return -EOPNOTSUPP;
9662
6abb9cb9 9663 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9664 /* adjust size to have room for all the data */
6abb9cb9
JB		 9665 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9666 rdev->wiphy.wowlan_config->tcp->payload_len +
9667 rdev->wiphy.wowlan_config->tcp->wake_len +
9668 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9669 }
9670
9671 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9672 if (!msg)
9673 return -ENOMEM;
9674
15e47304 9675 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9676 NL80211_CMD_GET_WOWLAN);
9677 if (!hdr)
9678 goto nla_put_failure;
9679
6abb9cb9 9680 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9681 struct nlattr *nl_wowlan;
9682
9683 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9684 if (!nl_wowlan)
9685 goto nla_put_failure;
9686
6abb9cb9 9687 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9688 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9689 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9690 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9691 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9692 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9693 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9694 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9695 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9696 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9697 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9698 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9699 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9700 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9701 goto nla_put_failure;
2a0e047e 9702
bb92d199
AK		 9703 if (nl80211_send_wowlan_patterns(msg, rdev))
9704 goto nla_put_failure;
2a0e047e 9705
6abb9cb9
JB		 9706 if (nl80211_send_wowlan_tcp(msg,
9707 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9708 goto nla_put_failure;
75453ccb
LC		 9709
9710 if (nl80211_send_wowlan_nd(
9711 msg,
9712 rdev->wiphy.wowlan_config->nd_config))
9713 goto nla_put_failure;
2a0e047e 9714
ff1b6e69
JB		 9715 nla_nest_end(msg, nl_wowlan);
9716 }
9717
9718 genlmsg_end(msg, hdr);
9719 return genlmsg_reply(msg, info);
9720
9721nla_put_failure:
9722 nlmsg_free(msg);
9723 return -ENOBUFS;
9724}
9725
2a0e047e
JB		 9726static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9727 struct nlattr *attr,
9728 struct cfg80211_wowlan *trig)
9729{
9730 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9731 struct cfg80211_wowlan_tcp *cfg;
9732 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9733 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9734 u32 size;
9735 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9736 int err, port;
9737
964dc9e2 9738 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9739 return -EINVAL;
9740
9741 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9742 nla_data(attr), nla_len(attr),
9743 nl80211_wowlan_tcp_policy);
9744 if (err)
9745 return err;
9746
9747 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9748 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9749 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9750 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9751 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9752 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9753 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9754 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9755 return -EINVAL;
9756
9757 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9758 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9759 return -EINVAL;
9760
9761 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9762 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9763 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9764 return -EINVAL;
9765
9766 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9767 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9768 return -EINVAL;
9769
9770 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9771 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9772 return -EINVAL;
9773
9774 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9775 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9776
9777 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9778 tokens_size = tokln - sizeof(*tok);
9779
9780 if (!tok->len || tokens_size % tok->len)
9781 return -EINVAL;
964dc9e2 9782 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9783 return -EINVAL;
964dc9e2 9784 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9785 return -EINVAL;
964dc9e2 9786 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9787 return -EINVAL;
964dc9e2 9788 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9789 return -EINVAL;
9790 if (tok->offset + tok->len > data_size)
9791 return -EINVAL;
9792 }
9793
9794 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9795 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9796 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9797 return -EINVAL;
9798 if (seq->len == 0 || seq->len > 4)
9799 return -EINVAL;
9800 if (seq->len + seq->offset > data_size)
9801 return -EINVAL;
9802 }
9803
9804 size = sizeof(*cfg);
9805 size += data_size;
9806 size += wake_size + wake_mask_size;
9807 size += tokens_size;
9808
9809 cfg = kzalloc(size, GFP_KERNEL);
9810 if (!cfg)
9811 return -ENOMEM;
67b61f6c
JB		 9812 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9813 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9814 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9815 ETH_ALEN);
9816 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9817 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9818 else
9819 port = 0;
9820#ifdef CONFIG_INET
9821 /* allocate a socket and port for it and use it */
9822 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9823 IPPROTO_TCP, &cfg->sock, 1);
9824 if (err) {
9825 kfree(cfg);
9826 return err;
9827 }
9828 if (inet_csk_get_port(cfg->sock->sk, port)) {
9829 sock_release(cfg->sock);
9830 kfree(cfg);
9831 return -EADDRINUSE;
9832 }
9833 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9834#else
9835 if (!port) {
9836 kfree(cfg);
9837 return -EINVAL;
9838 }
9839 cfg->src_port = port;
9840#endif
9841
9842 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9843 cfg->payload_len = data_size;
9844 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9845 memcpy((void *)cfg->payload,
9846 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9847 data_size);
9848 if (seq)
9849 cfg->payload_seq = *seq;
9850 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9851 cfg->wake_len = wake_size;
9852 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9853 memcpy((void *)cfg->wake_data,
9854 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9855 wake_size);
9856 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9857 data_size + wake_size;
9858 memcpy((void *)cfg->wake_mask,
9859 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9860 wake_mask_size);
9861 if (tok) {
9862 cfg->tokens_size = tokens_size;
9863 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9864 }
9865
9866 trig->tcp = cfg;
9867
9868 return 0;
9869}
9870
8cd4d456
LC		 9871static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9872 const struct wiphy_wowlan_support *wowlan,
9873 struct nlattr *attr,
9874 struct cfg80211_wowlan *trig)
9875{
9876 struct nlattr **tb;
9877 int err;
9878
9879 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9880 if (!tb)
9881 return -ENOMEM;
9882
9883 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9884 err = -EOPNOTSUPP;
9885 goto out;
9886 }
9887
9888 err = nla_parse(tb, NL80211_ATTR_MAX,
9889 nla_data(attr), nla_len(attr),
9890 nl80211_policy);
9891 if (err)
9892 goto out;
9893
ad2b26ab 9894 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9895 err = PTR_ERR_OR_ZERO(trig->nd_config);
9896 if (err)
9897 trig->nd_config = NULL;
9898
9899out:
9900 kfree(tb);
9901 return err;
9902}
9903
ff1b6e69
JB		 9904static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9905{
9906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9907 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9908 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9909 struct cfg80211_wowlan *ntrig;
964dc9e2 9910 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9911 int err, i;
6abb9cb9 9912 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9913 bool regular = false;
ff1b6e69 9914
964dc9e2 9915 if (!wowlan)
ff1b6e69
JB		 9916 return -EOPNOTSUPP;
9917
ae33bd81
JB		 9918 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9919 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9920 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9921 goto set_wakeup;
9922 }
ff1b6e69
JB		 9923
9924 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9925 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9926 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9927 nl80211_wowlan_policy);
9928 if (err)
9929 return err;
9930
9931 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9932 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9933 return -EINVAL;
9934 new_triggers.any = true;
9935 }
9936
9937 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9938 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9939 return -EINVAL;
9940 new_triggers.disconnect = true;
98fc4386 9941 regular = true;
ff1b6e69
JB		 9942 }
9943
9944 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9945 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9946 return -EINVAL;
9947 new_triggers.magic_pkt = true;
98fc4386 9948 regular = true;
ff1b6e69
JB		 9949 }
9950
77dbbb13
JB		 9951 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9952 return -EINVAL;
9953
9954 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9955 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9956 return -EINVAL;
9957 new_triggers.gtk_rekey_failure = true;
98fc4386 9958 regular = true;
77dbbb13
JB		 9959 }
9960
9961 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9962 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9963 return -EINVAL;
9964 new_triggers.eap_identity_req = true;
98fc4386 9965 regular = true;
77dbbb13
JB		 9966 }
9967
9968 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9969 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9970 return -EINVAL;
9971 new_triggers.four_way_handshake = true;
98fc4386 9972 regular = true;
77dbbb13
JB		 9973 }
9974
9975 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9976 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9977 return -EINVAL;
9978 new_triggers.rfkill_release = true;
98fc4386 9979 regular = true;
77dbbb13
JB		 9980 }
9981
ff1b6e69
JB		 9982 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9983 struct nlattr *pat;
9984 int n_patterns = 0;
bb92d199 9985 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9986 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9987
98fc4386
JB		 9988 regular = true;
9989
ff1b6e69
JB		 9990 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9991 rem)
9992 n_patterns++;
9993 if (n_patterns > wowlan->n_patterns)
9994 return -EINVAL;
9995
9996 new_triggers.patterns = kcalloc(n_patterns,
9997 sizeof(new_triggers.patterns[0]),
9998 GFP_KERNEL);
9999 if (!new_triggers.patterns)
10000 return -ENOMEM;
10001
10002 new_triggers.n_patterns = n_patterns;
10003 i = 0;
10004
10005 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10006 rem) {
922bd80f
JB		 10007 u8 *mask_pat;
10008
50ac6607
AK		 10009 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10010 nla_len(pat), NULL);
ff1b6e69 10011 err = -EINVAL;
50ac6607
AK		 10012 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10013 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 10014 goto error;
50ac6607 10015 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 10016 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 10017 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 10018 goto error;
10019 if (pat_len > wowlan->pattern_max_len ||
10020 pat_len < wowlan->pattern_min_len)
10021 goto error;
10022
50ac6607 10023 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 10024 pkt_offset = 0;
10025 else
10026 pkt_offset = nla_get_u32(
50ac6607 10027 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 10028 if (pkt_offset > wowlan->max_pkt_offset)
10029 goto error;
10030 new_triggers.patterns[i].pkt_offset = pkt_offset;
10031
922bd80f
JB		 10032 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10033 if (!mask_pat) {
ff1b6e69
JB		 10034 err = -ENOMEM;
10035 goto error;
10036 }
922bd80f
JB		 10037 new_triggers.patterns[i].mask = mask_pat;
10038 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 10039 mask_len);
922bd80f
JB		 10040 mask_pat += mask_len;
10041 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 10042 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 10043 memcpy(mask_pat,
50ac6607 10044 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 10045 pat_len);
10046 i++;
10047 }
10048 }
10049
2a0e047e 10050 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10051 regular = true;
2a0e047e
JB		 10052 err = nl80211_parse_wowlan_tcp(
10053 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10054 &new_triggers);
10055 if (err)
10056 goto error;
10057 }
10058
8cd4d456 10059 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10060 regular = true;
8cd4d456
LC		 10061 err = nl80211_parse_wowlan_nd(
10062 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10063 &new_triggers);
10064 if (err)
10065 goto error;
10066 }
10067
98fc4386
JB		 10068 /* The 'any' trigger means the device continues operating more or less
10069 * as in its normal operation mode and wakes up the host on most of the
10070 * normal interrupts (like packet RX, ...)
10071 * It therefore makes little sense to combine with the more constrained
10072 * wakeup trigger modes.
10073 */
10074 if (new_triggers.any && regular) {
10075 err = -EINVAL;
10076 goto error;
10077 }
10078
ae33bd81
JB		 10079 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10080 if (!ntrig) {
10081 err = -ENOMEM;
10082 goto error;
ff1b6e69 10083 }
ae33bd81 10084 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10085 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10086
ae33bd81 10087 set_wakeup:
6abb9cb9
JB		 10088 if (rdev->ops->set_wakeup &&
10089 prev_enabled != !!rdev->wiphy.wowlan_config)
10090 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10091
ff1b6e69
JB		 10092 return 0;
10093 error:
10094 for (i = 0; i < new_triggers.n_patterns; i++)
10095 kfree(new_triggers.patterns[i].mask);
10096 kfree(new_triggers.patterns);
2a0e047e
JB		 10097 if (new_triggers.tcp && new_triggers.tcp->sock)
10098 sock_release(new_triggers.tcp->sock);
10099 kfree(new_triggers.tcp);
e5dbe070 10100 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10101 return err;
10102}
dfb89c56 10103#endif
ff1b6e69 10104
be29b99a
AK		 10105static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10106 struct cfg80211_registered_device *rdev)
10107{
10108 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10109 int i, j, pat_len;
10110 struct cfg80211_coalesce_rules *rule;
10111
10112 if (!rdev->coalesce->n_rules)
10113 return 0;
10114
10115 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10116 if (!nl_rules)
10117 return -ENOBUFS;
10118
10119 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10120 nl_rule = nla_nest_start(msg, i + 1);
10121 if (!nl_rule)
10122 return -ENOBUFS;
10123
10124 rule = &rdev->coalesce->rules[i];
10125 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10126 rule->delay))
10127 return -ENOBUFS;
10128
10129 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10130 rule->condition))
10131 return -ENOBUFS;
10132
10133 nl_pats = nla_nest_start(msg,
10134 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10135 if (!nl_pats)
10136 return -ENOBUFS;
10137
10138 for (j = 0; j < rule->n_patterns; j++) {
10139 nl_pat = nla_nest_start(msg, j + 1);
10140 if (!nl_pat)
10141 return -ENOBUFS;
10142 pat_len = rule->patterns[j].pattern_len;
10143 if (nla_put(msg, NL80211_PKTPAT_MASK,
10144 DIV_ROUND_UP(pat_len, 8),
10145 rule->patterns[j].mask) ||
10146 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10147 rule->patterns[j].pattern) ||
10148 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10149 rule->patterns[j].pkt_offset))
10150 return -ENOBUFS;
10151 nla_nest_end(msg, nl_pat);
10152 }
10153 nla_nest_end(msg, nl_pats);
10154 nla_nest_end(msg, nl_rule);
10155 }
10156 nla_nest_end(msg, nl_rules);
10157
10158 return 0;
10159}
10160
10161static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10162{
10163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10164 struct sk_buff *msg;
10165 void *hdr;
10166
10167 if (!rdev->wiphy.coalesce)
10168 return -EOPNOTSUPP;
10169
10170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10171 if (!msg)
10172 return -ENOMEM;
10173
10174 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10175 NL80211_CMD_GET_COALESCE);
10176 if (!hdr)
10177 goto nla_put_failure;
10178
10179 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10180 goto nla_put_failure;
10181
10182 genlmsg_end(msg, hdr);
10183 return genlmsg_reply(msg, info);
10184
10185nla_put_failure:
10186 nlmsg_free(msg);
10187 return -ENOBUFS;
10188}
10189
10190void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10191{
10192 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10193 int i, j;
10194 struct cfg80211_coalesce_rules *rule;
10195
10196 if (!coalesce)
10197 return;
10198
10199 for (i = 0; i < coalesce->n_rules; i++) {
10200 rule = &coalesce->rules[i];
10201 for (j = 0; j < rule->n_patterns; j++)
10202 kfree(rule->patterns[j].mask);
10203 kfree(rule->patterns);
10204 }
10205 kfree(coalesce->rules);
10206 kfree(coalesce);
10207 rdev->coalesce = NULL;
10208}
10209
10210static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10211 struct nlattr *rule,
10212 struct cfg80211_coalesce_rules *new_rule)
10213{
10214 int err, i;
10215 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10216 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10217 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10218 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10219
10220 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
10221 nla_len(rule), nl80211_coalesce_policy);
10222 if (err)
10223 return err;
10224
10225 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10226 new_rule->delay =
10227 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10228 if (new_rule->delay > coalesce->max_delay)
10229 return -EINVAL;
10230
10231 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10232 new_rule->condition =
10233 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10234 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10235 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10236 return -EINVAL;
10237
10238 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10239 return -EINVAL;
10240
10241 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10242 rem)
10243 n_patterns++;
10244 if (n_patterns > coalesce->n_patterns)
10245 return -EINVAL;
10246
10247 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10248 GFP_KERNEL);
10249 if (!new_rule->patterns)
10250 return -ENOMEM;
10251
10252 new_rule->n_patterns = n_patterns;
10253 i = 0;
10254
10255 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10256 rem) {
922bd80f
JB		 10257 u8 *mask_pat;
10258
be29b99a
AK		 10259 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10260 nla_len(pat), NULL);
10261 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10262 !pat_tb[NL80211_PKTPAT_PATTERN])
10263 return -EINVAL;
10264 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10265 mask_len = DIV_ROUND_UP(pat_len, 8);
10266 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10267 return -EINVAL;
10268 if (pat_len > coalesce->pattern_max_len ||
10269 pat_len < coalesce->pattern_min_len)
10270 return -EINVAL;
10271
10272 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10273 pkt_offset = 0;
10274 else
10275 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10276 if (pkt_offset > coalesce->max_pkt_offset)
10277 return -EINVAL;
10278 new_rule->patterns[i].pkt_offset = pkt_offset;
10279
922bd80f
JB		 10280 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10281 if (!mask_pat)
be29b99a 10282 return -ENOMEM;
922bd80f
JB		 10283
10284 new_rule->patterns[i].mask = mask_pat;
10285 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10286 mask_len);
10287
10288 mask_pat += mask_len;
10289 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10290 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10291 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10292 pat_len);
be29b99a
AK		 10293 i++;
10294 }
10295
10296 return 0;
10297}
10298
10299static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10300{
10301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10302 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10303 struct cfg80211_coalesce new_coalesce = {};
10304 struct cfg80211_coalesce *n_coalesce;
10305 int err, rem_rule, n_rules = 0, i, j;
10306 struct nlattr *rule;
10307 struct cfg80211_coalesce_rules *tmp_rule;
10308
10309 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10310 return -EOPNOTSUPP;
10311
10312 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10313 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10314 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10315 return 0;
10316 }
10317
10318 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10319 rem_rule)
10320 n_rules++;
10321 if (n_rules > coalesce->n_rules)
10322 return -EINVAL;
10323
10324 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10325 GFP_KERNEL);
10326 if (!new_coalesce.rules)
10327 return -ENOMEM;
10328
10329 new_coalesce.n_rules = n_rules;
10330 i = 0;
10331
10332 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10333 rem_rule) {
10334 err = nl80211_parse_coalesce_rule(rdev, rule,
10335 &new_coalesce.rules[i]);
10336 if (err)
10337 goto error;
10338
10339 i++;
10340 }
10341
a1056b1b 10342 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10343 if (err)
10344 goto error;
10345
10346 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10347 if (!n_coalesce) {
10348 err = -ENOMEM;
10349 goto error;
10350 }
10351 cfg80211_rdev_free_coalesce(rdev);
10352 rdev->coalesce = n_coalesce;
10353
10354 return 0;
10355error:
10356 for (i = 0; i < new_coalesce.n_rules; i++) {
10357 tmp_rule = &new_coalesce.rules[i];
10358 for (j = 0; j < tmp_rule->n_patterns; j++)
10359 kfree(tmp_rule->patterns[j].mask);
10360 kfree(tmp_rule->patterns);
10361 }
10362 kfree(new_coalesce.rules);
10363
10364 return err;
10365}
10366
e5497d76
JB		 10367static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10368{
10369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10370 struct net_device *dev = info->user_ptr[1];
10371 struct wireless_dev *wdev = dev->ieee80211_ptr;
10372 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10373 struct cfg80211_gtk_rekey_data rekey_data;
10374 int err;
10375
10376 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10377 return -EINVAL;
10378
10379 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10380 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10381 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10382 nl80211_rekey_policy);
10383 if (err)
10384 return err;
10385
10386 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10387 return -ERANGE;
10388 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10389 return -ERANGE;
10390 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10391 return -ERANGE;
10392
78f686ca
JB		 10393 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10394 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10395 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10396
10397 wdev_lock(wdev);
10398 if (!wdev->current_bss) {
10399 err = -ENOTCONN;
10400 goto out;
10401 }
10402
10403 if (!rdev->ops->set_rekey_data) {
10404 err = -EOPNOTSUPP;
10405 goto out;
10406 }
10407
e35e4d28 10408 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10409 out:
10410 wdev_unlock(wdev);
10411 return err;
10412}
10413
28946da7
JB		 10414static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10415 struct genl_info *info)
10416{
10417 struct net_device *dev = info->user_ptr[1];
10418 struct wireless_dev *wdev = dev->ieee80211_ptr;
10419
10420 if (wdev->iftype != NL80211_IFTYPE_AP &&
10421 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10422 return -EINVAL;
10423
15e47304 10424 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10425 return -EBUSY;
10426
15e47304 10427 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10428 return 0;
10429}
10430
7f6cf311
JB		 10431static int nl80211_probe_client(struct sk_buff *skb,
10432 struct genl_info *info)
10433{
10434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10435 struct net_device *dev = info->user_ptr[1];
10436 struct wireless_dev *wdev = dev->ieee80211_ptr;
10437 struct sk_buff *msg;
10438 void *hdr;
10439 const u8 *addr;
10440 u64 cookie;
10441 int err;
10442
10443 if (wdev->iftype != NL80211_IFTYPE_AP &&
10444 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10445 return -EOPNOTSUPP;
10446
10447 if (!info->attrs[NL80211_ATTR_MAC])
10448 return -EINVAL;
10449
10450 if (!rdev->ops->probe_client)
10451 return -EOPNOTSUPP;
10452
10453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10454 if (!msg)
10455 return -ENOMEM;
10456
15e47304 10457 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10458 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10459 if (!hdr) {
10460 err = -ENOBUFS;
7f6cf311
JB		 10461 goto free_msg;
10462 }
10463
10464 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10465
e35e4d28 10466 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10467 if (err)
10468 goto free_msg;
10469
2dad624e
ND		 10470 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10471 NL80211_ATTR_PAD))
9360ffd1 10472 goto nla_put_failure;
7f6cf311
JB		 10473
10474 genlmsg_end(msg, hdr);
10475
10476 return genlmsg_reply(msg, info);
10477
10478 nla_put_failure:
10479 err = -ENOBUFS;
10480 free_msg:
10481 nlmsg_free(msg);
10482 return err;
10483}
10484
5e760230
JB		 10485static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10486{
10487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10488 struct cfg80211_beacon_registration *reg, *nreg;
10489 int rv;
5e760230
JB		 10490
10491 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10492 return -EOPNOTSUPP;
10493
37c73b5f
BG		 10494 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10495 if (!nreg)
10496 return -ENOMEM;
10497
10498 /* First, check if already registered. */
10499 spin_lock_bh(&rdev->beacon_registrations_lock);
10500 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10501 if (reg->nlportid == info->snd_portid) {
10502 rv = -EALREADY;
10503 goto out_err;
10504 }
10505 }
10506 /* Add it to the list */
10507 nreg->nlportid = info->snd_portid;
10508 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10509
37c73b5f 10510 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10511
10512 return 0;
37c73b5f
BG		 10513out_err:
10514 spin_unlock_bh(&rdev->beacon_registrations_lock);
10515 kfree(nreg);
10516 return rv;
5e760230
JB		 10517}
10518
98104fde
JB		 10519static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10520{
10521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10522 struct wireless_dev *wdev = info->user_ptr[1];
10523 int err;
10524
10525 if (!rdev->ops->start_p2p_device)
10526 return -EOPNOTSUPP;
10527
10528 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10529 return -EOPNOTSUPP;
10530
73c7da3d 10531 if (wdev_running(wdev))
98104fde
JB		 10532 return 0;
10533
b6a55015
LC		 10534 if (rfkill_blocked(rdev->rfkill))
10535 return -ERFKILL;
98104fde 10536
eeb126e9 10537 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10538 if (err)
10539 return err;
10540
73c7da3d 10541 wdev->is_running = true;
98104fde 10542 rdev->opencount++;
98104fde
JB		 10543
10544 return 0;
10545}
10546
10547static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10548{
10549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10550 struct wireless_dev *wdev = info->user_ptr[1];
10551
10552 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10553 return -EOPNOTSUPP;
10554
10555 if (!rdev->ops->stop_p2p_device)
10556 return -EOPNOTSUPP;
10557
f9f47529 10558 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10559
10560 return 0;
10561}
10562
cb3b7d87
AB		 10563static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
10564{
10565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10566 struct wireless_dev *wdev = info->user_ptr[1];
10567 struct cfg80211_nan_conf conf = {};
10568 int err;
10569
10570 if (wdev->iftype != NL80211_IFTYPE_NAN)
10571 return -EOPNOTSUPP;
10572
73c7da3d 10573 if (!wdev_running(wdev))
cb3b7d87
AB		 10574 return -EEXIST;
10575
10576 if (rfkill_blocked(rdev->rfkill))
10577 return -ERFKILL;
10578
10579 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
10580 return -EINVAL;
10581
10582 if (!info->attrs[NL80211_ATTR_NAN_DUAL])
10583 return -EINVAL;
10584
10585 conf.master_pref =
10586 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10587 if (!conf.master_pref)
10588 return -EINVAL;
10589
10590 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
10591
10592 err = rdev_start_nan(rdev, wdev, &conf);
10593 if (err)
10594 return err;
10595
73c7da3d 10596 wdev->is_running = true;
cb3b7d87
AB		 10597 rdev->opencount++;
10598
10599 return 0;
10600}
10601
10602static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
10603{
10604 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10605 struct wireless_dev *wdev = info->user_ptr[1];
10606
10607 if (wdev->iftype != NL80211_IFTYPE_NAN)
10608 return -EOPNOTSUPP;
10609
10610 cfg80211_stop_nan(rdev, wdev);
10611
10612 return 0;
10613}
10614
a442b761
AB		 10615static int validate_nan_filter(struct nlattr *filter_attr)
10616{
10617 struct nlattr *attr;
10618 int len = 0, n_entries = 0, rem;
10619
10620 nla_for_each_nested(attr, filter_attr, rem) {
10621 len += nla_len(attr);
10622 n_entries++;
10623 }
10624
10625 if (len >= U8_MAX)
10626 return -EINVAL;
10627
10628 return n_entries;
10629}
10630
10631static int handle_nan_filter(struct nlattr *attr_filter,
10632 struct cfg80211_nan_func *func,
10633 bool tx)
10634{
10635 struct nlattr *attr;
10636 int n_entries, rem, i;
10637 struct cfg80211_nan_func_filter *filter;
10638
10639 n_entries = validate_nan_filter(attr_filter);
10640 if (n_entries < 0)
10641 return n_entries;
10642
10643 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
10644
10645 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
10646 if (!filter)
10647 return -ENOMEM;
10648
10649 i = 0;
10650 nla_for_each_nested(attr, attr_filter, rem) {
10651 filter[i].filter = kmemdup(nla_data(attr), nla_len(attr),
10652 GFP_KERNEL);
10653 filter[i].len = nla_len(attr);
10654 i++;
10655 }
10656 if (tx) {
10657 func->num_tx_filters = n_entries;
10658 func->tx_filters = filter;
10659 } else {
10660 func->num_rx_filters = n_entries;
10661 func->rx_filters = filter;
10662 }
10663
10664 return 0;
10665}
10666
10667static int nl80211_nan_add_func(struct sk_buff *skb,
10668 struct genl_info *info)
10669{
10670 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10671 struct wireless_dev *wdev = info->user_ptr[1];
10672 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
10673 struct cfg80211_nan_func *func;
10674 struct sk_buff *msg = NULL;
10675 void *hdr = NULL;
10676 int err = 0;
10677
10678 if (wdev->iftype != NL80211_IFTYPE_NAN)
10679 return -EOPNOTSUPP;
10680
73c7da3d 10681 if (!wdev_running(wdev))
a442b761
AB		 10682 return -ENOTCONN;
10683
10684 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
10685 return -EINVAL;
10686
10687 if (wdev->owner_nlportid &&
10688 wdev->owner_nlportid != info->snd_portid)
10689 return -ENOTCONN;
10690
10691 err = nla_parse(tb, NL80211_NAN_FUNC_ATTR_MAX,
10692 nla_data(info->attrs[NL80211_ATTR_NAN_FUNC]),
10693 nla_len(info->attrs[NL80211_ATTR_NAN_FUNC]),
10694 nl80211_nan_func_policy);
10695 if (err)
10696 return err;
10697
10698 func = kzalloc(sizeof(*func), GFP_KERNEL);
10699 if (!func)
10700 return -ENOMEM;
10701
10702 func->cookie = wdev->wiphy->cookie_counter++;
10703
10704 if (!tb[NL80211_NAN_FUNC_TYPE] ||
10705 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
10706 err = -EINVAL;
10707 goto out;
10708 }
10709
10710
10711 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
10712
10713 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
10714 err = -EINVAL;
10715 goto out;
10716 }
10717
10718 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
10719 sizeof(func->service_id));
10720
10721 func->close_range =
10722 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
10723
10724 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
10725 func->serv_spec_info_len =
10726 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
10727 func->serv_spec_info =
10728 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
10729 func->serv_spec_info_len,
10730 GFP_KERNEL);
10731 if (!func->serv_spec_info) {
10732 err = -ENOMEM;
10733 goto out;
10734 }
10735 }
10736
10737 if (tb[NL80211_NAN_FUNC_TTL])
10738 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
10739
10740 switch (func->type) {
10741 case NL80211_NAN_FUNC_PUBLISH:
10742 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
10743 err = -EINVAL;
10744 goto out;
10745 }
10746
10747 func->publish_type =
10748 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
10749 func->publish_bcast =
10750 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
10751
10752 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
10753 func->publish_bcast) {
10754 err = -EINVAL;
10755 goto out;
10756 }
10757 break;
10758 case NL80211_NAN_FUNC_SUBSCRIBE:
10759 func->subscribe_active =
10760 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
10761 break;
10762 case NL80211_NAN_FUNC_FOLLOW_UP:
10763 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
10764 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
10765 err = -EINVAL;
10766 goto out;
10767 }
10768
10769 func->followup_id =
10770 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
10771 func->followup_reqid =
10772 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
10773 memcpy(func->followup_dest.addr,
10774 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
10775 sizeof(func->followup_dest.addr));
10776 if (func->ttl) {
10777 err = -EINVAL;
10778 goto out;
10779 }
10780 break;
10781 default:
10782 err = -EINVAL;
10783 goto out;
10784 }
10785
10786 if (tb[NL80211_NAN_FUNC_SRF]) {
10787 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
10788
10789 err = nla_parse(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
10790 nla_data(tb[NL80211_NAN_FUNC_SRF]),
1609d18d
JB		 10791 nla_len(tb[NL80211_NAN_FUNC_SRF]),
10792 nl80211_nan_srf_policy);
a442b761
AB		 10793 if (err)
10794 goto out;
10795
10796 func->srf_include =
10797 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
10798
10799 if (srf_tb[NL80211_NAN_SRF_BF]) {
10800 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
10801 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
10802 err = -EINVAL;
10803 goto out;
10804 }
10805
10806 func->srf_bf_len =
10807 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
10808 func->srf_bf =
10809 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
10810 func->srf_bf_len, GFP_KERNEL);
10811 if (!func->srf_bf) {
10812 err = -ENOMEM;
10813 goto out;
10814 }
10815
10816 func->srf_bf_idx =
10817 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
10818 } else {
10819 struct nlattr *attr, *mac_attr =
10820 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
10821 int n_entries, rem, i = 0;
10822
10823 if (!mac_attr) {
10824 err = -EINVAL;
10825 goto out;
10826 }
10827
10828 n_entries = validate_acl_mac_addrs(mac_attr);
10829 if (n_entries <= 0) {
10830 err = -EINVAL;
10831 goto out;
10832 }
10833
10834 func->srf_num_macs = n_entries;
10835 func->srf_macs =
10836 kzalloc(sizeof(*func->srf_macs) * n_entries,
10837 GFP_KERNEL);
10838 if (!func->srf_macs) {
10839 err = -ENOMEM;
10840 goto out;
10841 }
10842
10843 nla_for_each_nested(attr, mac_attr, rem)
10844 memcpy(func->srf_macs[i++].addr, nla_data(attr),
10845 sizeof(*func->srf_macs));
10846 }
10847 }
10848
10849 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
10850 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
10851 func, true);
10852 if (err)
10853 goto out;
10854 }
10855
10856 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
10857 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
10858 func, false);
10859 if (err)
10860 goto out;
10861 }
10862
10863 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10864 if (!msg) {
10865 err = -ENOMEM;
10866 goto out;
10867 }
10868
10869 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10870 NL80211_CMD_ADD_NAN_FUNCTION);
10871 /* This can't really happen - we just allocated 4KB */
10872 if (WARN_ON(!hdr)) {
10873 err = -ENOMEM;
10874 goto out;
10875 }
10876
10877 err = rdev_add_nan_func(rdev, wdev, func);
10878out:
10879 if (err < 0) {
10880 cfg80211_free_nan_func(func);
10881 nlmsg_free(msg);
10882 return err;
10883 }
10884
10885 /* propagate the instance id and cookie to userspace */
10886 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
10887 NL80211_ATTR_PAD))
10888 goto nla_put_failure;
10889
10890 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
10891 if (!func_attr)
10892 goto nla_put_failure;
10893
10894 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
10895 func->instance_id))
10896 goto nla_put_failure;
10897
10898 nla_nest_end(msg, func_attr);
10899
10900 genlmsg_end(msg, hdr);
10901 return genlmsg_reply(msg, info);
10902
10903nla_put_failure:
10904 nlmsg_free(msg);
10905 return -ENOBUFS;
10906}
10907
10908static int nl80211_nan_del_func(struct sk_buff *skb,
10909 struct genl_info *info)
10910{
10911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10912 struct wireless_dev *wdev = info->user_ptr[1];
10913 u64 cookie;
10914
10915 if (wdev->iftype != NL80211_IFTYPE_NAN)
10916 return -EOPNOTSUPP;
10917
73c7da3d 10918 if (!wdev_running(wdev))
a442b761
AB		 10919 return -ENOTCONN;
10920
10921 if (!info->attrs[NL80211_ATTR_COOKIE])
10922 return -EINVAL;
10923
10924 if (wdev->owner_nlportid &&
10925 wdev->owner_nlportid != info->snd_portid)
10926 return -ENOTCONN;
10927
10928 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
10929
10930 rdev_del_nan_func(rdev, wdev, cookie);
10931
10932 return 0;
10933}
10934
a5a9dcf2
AB		 10935static int nl80211_nan_change_config(struct sk_buff *skb,
10936 struct genl_info *info)
10937{
10938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10939 struct wireless_dev *wdev = info->user_ptr[1];
10940 struct cfg80211_nan_conf conf = {};
10941 u32 changed = 0;
10942
10943 if (wdev->iftype != NL80211_IFTYPE_NAN)
10944 return -EOPNOTSUPP;
10945
73c7da3d 10946 if (!wdev_running(wdev))
a5a9dcf2
AB		 10947 return -ENOTCONN;
10948
10949 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
10950 conf.master_pref =
10951 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10952 if (conf.master_pref <= 1 || conf.master_pref == 255)
10953 return -EINVAL;
10954
10955 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
10956 }
10957
10958 if (info->attrs[NL80211_ATTR_NAN_DUAL]) {
10959 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
10960 changed |= CFG80211_NAN_CONF_CHANGED_DUAL;
10961 }
10962
10963 if (!changed)
10964 return -EINVAL;
10965
10966 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
10967}
10968
50bcd31d
AB		 10969void cfg80211_nan_match(struct wireless_dev *wdev,
10970 struct cfg80211_nan_match_params *match, gfp_t gfp)
10971{
10972 struct wiphy *wiphy = wdev->wiphy;
10973 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10974 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
10975 struct sk_buff *msg;
10976 void *hdr;
10977
10978 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
10979 return;
10980
10981 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10982 if (!msg)
10983 return;
10984
10985 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
10986 if (!hdr) {
10987 nlmsg_free(msg);
10988 return;
10989 }
10990
10991 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10992 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10993 wdev->netdev->ifindex)) ||
10994 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
10995 NL80211_ATTR_PAD))
10996 goto nla_put_failure;
10997
10998 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
10999 NL80211_ATTR_PAD) ||
11000 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11001 goto nla_put_failure;
11002
11003 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11004 if (!match_attr)
11005 goto nla_put_failure;
11006
11007 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11008 if (!local_func_attr)
11009 goto nla_put_failure;
11010
11011 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11012 goto nla_put_failure;
11013
11014 nla_nest_end(msg, local_func_attr);
11015
11016 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11017 if (!peer_func_attr)
11018 goto nla_put_failure;
11019
11020 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11021 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11022 goto nla_put_failure;
11023
11024 if (match->info && match->info_len &&
11025 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11026 match->info))
11027 goto nla_put_failure;
11028
11029 nla_nest_end(msg, peer_func_attr);
11030 nla_nest_end(msg, match_attr);
11031 genlmsg_end(msg, hdr);
11032
11033 if (!wdev->owner_nlportid)
11034 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11035 msg, 0, NL80211_MCGRP_NAN, gfp);
11036 else
11037 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11038 wdev->owner_nlportid);
11039
11040 return;
11041
11042nla_put_failure:
11043 nlmsg_free(msg);
11044}
11045EXPORT_SYMBOL(cfg80211_nan_match);
11046
368e5a7b
AB		 11047void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11048 u8 inst_id,
11049 enum nl80211_nan_func_term_reason reason,
11050 u64 cookie, gfp_t gfp)
11051{
11052 struct wiphy *wiphy = wdev->wiphy;
11053 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11054 struct sk_buff *msg;
11055 struct nlattr *func_attr;
11056 void *hdr;
11057
11058 if (WARN_ON(!inst_id))
11059 return;
11060
11061 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11062 if (!msg)
11063 return;
11064
11065 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11066 if (!hdr) {
11067 nlmsg_free(msg);
11068 return;
11069 }
11070
11071 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11072 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11073 wdev->netdev->ifindex)) ||
11074 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11075 NL80211_ATTR_PAD))
11076 goto nla_put_failure;
11077
11078 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11079 NL80211_ATTR_PAD))
11080 goto nla_put_failure;
11081
11082 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11083 if (!func_attr)
11084 goto nla_put_failure;
11085
11086 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11087 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11088 goto nla_put_failure;
11089
11090 nla_nest_end(msg, func_attr);
11091 genlmsg_end(msg, hdr);
11092
11093 if (!wdev->owner_nlportid)
11094 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11095 msg, 0, NL80211_MCGRP_NAN, gfp);
11096 else
11097 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11098 wdev->owner_nlportid);
11099
11100 return;
11101
11102nla_put_failure:
11103 nlmsg_free(msg);
11104}
11105EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11106
3713b4e3
JB		 11107static int nl80211_get_protocol_features(struct sk_buff *skb,
11108 struct genl_info *info)
11109{
11110 void *hdr;
11111 struct sk_buff *msg;
11112
11113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11114 if (!msg)
11115 return -ENOMEM;
11116
11117 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11118 NL80211_CMD_GET_PROTOCOL_FEATURES);
11119 if (!hdr)
11120 goto nla_put_failure;
11121
11122 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11123 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11124 goto nla_put_failure;
11125
11126 genlmsg_end(msg, hdr);
11127 return genlmsg_reply(msg, info);
11128
11129 nla_put_failure:
11130 kfree_skb(msg);
11131 return -ENOBUFS;
11132}
11133
355199e0
JM		 11134static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11135{
11136 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11137 struct cfg80211_update_ft_ies_params ft_params;
11138 struct net_device *dev = info->user_ptr[1];
11139
11140 if (!rdev->ops->update_ft_ies)
11141 return -EOPNOTSUPP;
11142
11143 if (!info->attrs[NL80211_ATTR_MDID] ||
11144 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11145 return -EINVAL;
11146
11147 memset(&ft_params, 0, sizeof(ft_params));
11148 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11149 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11150 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11151
11152 return rdev_update_ft_ies(rdev, dev, &ft_params);
11153}
11154
5de17984
AS		 11155static int nl80211_crit_protocol_start(struct sk_buff *skb,
11156 struct genl_info *info)
11157{
11158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11159 struct wireless_dev *wdev = info->user_ptr[1];
11160 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11161 u16 duration;
11162 int ret;
11163
11164 if (!rdev->ops->crit_proto_start)
11165 return -EOPNOTSUPP;
11166
11167 if (WARN_ON(!rdev->ops->crit_proto_stop))
11168 return -EINVAL;
11169
11170 if (rdev->crit_proto_nlportid)
11171 return -EBUSY;
11172
11173 /* determine protocol if provided */
11174 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11175 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11176
11177 if (proto >= NUM_NL80211_CRIT_PROTO)
11178 return -EINVAL;
11179
11180 /* timeout must be provided */
11181 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11182 return -EINVAL;
11183
11184 duration =
11185 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11186
11187 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11188 return -ERANGE;
11189
11190 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11191 if (!ret)
11192 rdev->crit_proto_nlportid = info->snd_portid;
11193
11194 return ret;
11195}
11196
11197static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11198 struct genl_info *info)
11199{
11200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11201 struct wireless_dev *wdev = info->user_ptr[1];
11202
11203 if (!rdev->ops->crit_proto_stop)
11204 return -EOPNOTSUPP;
11205
11206 if (rdev->crit_proto_nlportid) {
11207 rdev->crit_proto_nlportid = 0;
11208 rdev_crit_proto_stop(rdev, wdev);
11209 }
11210 return 0;
11211}
11212
ad7e718c
JB		 11213static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11214{
11215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11216 struct wireless_dev *wdev =
11217 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11218 int i, err;
11219 u32 vid, subcmd;
11220
11221 if (!rdev->wiphy.vendor_commands)
11222 return -EOPNOTSUPP;
11223
11224 if (IS_ERR(wdev)) {
11225 err = PTR_ERR(wdev);
11226 if (err != -EINVAL)
11227 return err;
11228 wdev = NULL;
11229 } else if (wdev->wiphy != &rdev->wiphy) {
11230 return -EINVAL;
11231 }
11232
11233 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11234 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11235 return -EINVAL;
11236
11237 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11238 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11239 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11240 const struct wiphy_vendor_command *vcmd;
11241 void *data = NULL;
11242 int len = 0;
11243
11244 vcmd = &rdev->wiphy.vendor_commands[i];
11245
11246 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11247 continue;
11248
11249 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11250 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11251 if (!wdev)
11252 return -EINVAL;
11253 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11254 !wdev->netdev)
11255 return -EINVAL;
11256
11257 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11258 if (!wdev_running(wdev))
ad7e718c
JB		 11259 return -ENETDOWN;
11260 }
7bdbe400
JB		 11261
11262 if (!vcmd->doit)
11263 return -EOPNOTSUPP;
ad7e718c
JB		 11264 } else {
11265 wdev = NULL;
11266 }
11267
11268 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11269 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11270 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11271 }
11272
11273 rdev->cur_cmd_info = info;
11274 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11275 data, len);
11276 rdev->cur_cmd_info = NULL;
11277 return err;
11278 }
11279
11280 return -EOPNOTSUPP;
11281}
11282
7bdbe400
JB		 11283static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11284 struct netlink_callback *cb,
11285 struct cfg80211_registered_device **rdev,
11286 struct wireless_dev **wdev)
11287{
11288 u32 vid, subcmd;
11289 unsigned int i;
11290 int vcmd_idx = -1;
11291 int err;
11292 void *data = NULL;
11293 unsigned int data_len = 0;
11294
11295 rtnl_lock();
11296
11297 if (cb->args[0]) {
11298 /* subtract the 1 again here */
11299 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11300 struct wireless_dev *tmp;
11301
11302 if (!wiphy) {
11303 err = -ENODEV;
11304 goto out_unlock;
11305 }
11306 *rdev = wiphy_to_rdev(wiphy);
11307 *wdev = NULL;
11308
11309 if (cb->args[1]) {
53873f13 11310 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11311 if (tmp->identifier == cb->args[1] - 1) {
11312 *wdev = tmp;
11313 break;
11314 }
11315 }
11316 }
11317
11318 /* keep rtnl locked in successful case */
11319 return 0;
11320 }
11321
11322 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
11323 nl80211_fam.attrbuf, nl80211_fam.maxattr,
11324 nl80211_policy);
11325 if (err)
11326 goto out_unlock;
11327
11328 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
11329 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
11330 err = -EINVAL;
11331 goto out_unlock;
11332 }
11333
11334 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
11335 nl80211_fam.attrbuf);
11336 if (IS_ERR(*wdev))
11337 *wdev = NULL;
11338
11339 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
11340 nl80211_fam.attrbuf);
11341 if (IS_ERR(*rdev)) {
11342 err = PTR_ERR(*rdev);
11343 goto out_unlock;
11344 }
11345
11346 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
11347 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
11348
11349 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11350 const struct wiphy_vendor_command *vcmd;
11351
11352 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11353
11354 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11355 continue;
11356
11357 if (!vcmd->dumpit) {
11358 err = -EOPNOTSUPP;
11359 goto out_unlock;
11360 }
11361
11362 vcmd_idx = i;
11363 break;
11364 }
11365
11366 if (vcmd_idx < 0) {
11367 err = -EOPNOTSUPP;
11368 goto out_unlock;
11369 }
11370
11371 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11372 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
11373 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
11374 }
11375
11376 /* 0 is the first index - add 1 to parse only once */
11377 cb->args[0] = (*rdev)->wiphy_idx + 1;
11378 /* add 1 to know if it was NULL */
11379 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11380 cb->args[2] = vcmd_idx;
11381 cb->args[3] = (unsigned long)data;
11382 cb->args[4] = data_len;
11383
11384 /* keep rtnl locked in successful case */
11385 return 0;
11386 out_unlock:
11387 rtnl_unlock();
11388 return err;
11389}
11390
11391static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11392 struct netlink_callback *cb)
11393{
11394 struct cfg80211_registered_device *rdev;
11395 struct wireless_dev *wdev;
11396 unsigned int vcmd_idx;
11397 const struct wiphy_vendor_command *vcmd;
11398 void *data;
11399 int data_len;
11400 int err;
11401 struct nlattr *vendor_data;
11402
11403 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11404 if (err)
11405 return err;
11406
11407 vcmd_idx = cb->args[2];
11408 data = (void *)cb->args[3];
11409 data_len = cb->args[4];
11410 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11411
11412 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11413 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11414 if (!wdev)
11415 return -EINVAL;
11416 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11417 !wdev->netdev)
11418 return -EINVAL;
11419
11420 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11421 if (!wdev_running(wdev))
7bdbe400
JB		 11422 return -ENETDOWN;
11423 }
11424 }
11425
11426 while (1) {
11427 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11428 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11429 NL80211_CMD_VENDOR);
11430 if (!hdr)
11431 break;
11432
11433 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 11434 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11435 wdev_id(wdev),
11436 NL80211_ATTR_PAD))) {
7bdbe400
JB		 11437 genlmsg_cancel(skb, hdr);
11438 break;
11439 }
11440
11441 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11442 if (!vendor_data) {
11443 genlmsg_cancel(skb, hdr);
11444 break;
11445 }
11446
11447 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11448 (unsigned long *)&cb->args[5]);
11449 nla_nest_end(skb, vendor_data);
11450
11451 if (err == -ENOBUFS || err == -ENOENT) {
11452 genlmsg_cancel(skb, hdr);
11453 break;
11454 } else if (err) {
11455 genlmsg_cancel(skb, hdr);
11456 goto out;
11457 }
11458
11459 genlmsg_end(skb, hdr);
11460 }
11461
11462 err = skb->len;
11463 out:
11464 rtnl_unlock();
11465 return err;
11466}
11467
ad7e718c
JB		 11468struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11469 enum nl80211_commands cmd,
11470 enum nl80211_attrs attr,
11471 int approxlen)
11472{
f26cbf40 11473 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 11474
11475 if (WARN_ON(!rdev->cur_cmd_info))
11476 return NULL;
11477
6c09e791 11478 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 11479 rdev->cur_cmd_info->snd_portid,
11480 rdev->cur_cmd_info->snd_seq,
567ffc35 11481 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 11482}
11483EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
11484
11485int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
11486{
11487 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
11488 void *hdr = ((void **)skb->cb)[1];
11489 struct nlattr *data = ((void **)skb->cb)[2];
11490
bd8c78e7
JB		 11491 /* clear CB data for netlink core to own from now on */
11492 memset(skb->cb, 0, sizeof(skb->cb));
11493
ad7e718c
JB		 11494 if (WARN_ON(!rdev->cur_cmd_info)) {
11495 kfree_skb(skb);
11496 return -EINVAL;
11497 }
11498
11499 nla_nest_end(skb, data);
11500 genlmsg_end(skb, hdr);
11501 return genlmsg_reply(skb, rdev->cur_cmd_info);
11502}
11503EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
11504
fa9ffc74
KP		 11505static int nl80211_set_qos_map(struct sk_buff *skb,
11506 struct genl_info *info)
11507{
11508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11509 struct cfg80211_qos_map *qos_map = NULL;
11510 struct net_device *dev = info->user_ptr[1];
11511 u8 *pos, len, num_des, des_len, des;
11512 int ret;
11513
11514 if (!rdev->ops->set_qos_map)
11515 return -EOPNOTSUPP;
11516
11517 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
11518 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
11519 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
11520
11521 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
11522 len > IEEE80211_QOS_MAP_LEN_MAX)
11523 return -EINVAL;
11524
11525 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
11526 if (!qos_map)
11527 return -ENOMEM;
11528
11529 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
11530 if (num_des) {
11531 des_len = num_des *
11532 sizeof(struct cfg80211_dscp_exception);
11533 memcpy(qos_map->dscp_exception, pos, des_len);
11534 qos_map->num_des = num_des;
11535 for (des = 0; des < num_des; des++) {
11536 if (qos_map->dscp_exception[des].up > 7) {
11537 kfree(qos_map);
11538 return -EINVAL;
11539 }
11540 }
11541 pos += des_len;
11542 }
11543 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
11544 }
11545
11546 wdev_lock(dev->ieee80211_ptr);
11547 ret = nl80211_key_allowed(dev->ieee80211_ptr);
11548 if (!ret)
11549 ret = rdev_set_qos_map(rdev, dev, qos_map);
11550 wdev_unlock(dev->ieee80211_ptr);
11551
11552 kfree(qos_map);
11553 return ret;
11554}
11555
960d01ac
JB		 11556static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
11557{
11558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11559 struct net_device *dev = info->user_ptr[1];
11560 struct wireless_dev *wdev = dev->ieee80211_ptr;
11561 const u8 *peer;
11562 u8 tsid, up;
11563 u16 admitted_time = 0;
11564 int err;
11565
723e73ac 11566 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 11567 return -EOPNOTSUPP;
11568
11569 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
11570 !info->attrs[NL80211_ATTR_USER_PRIO])
11571 return -EINVAL;
11572
11573 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11574 if (tsid >= IEEE80211_NUM_TIDS)
11575 return -EINVAL;
11576
11577 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
11578 if (up >= IEEE80211_NUM_UPS)
11579 return -EINVAL;
11580
11581 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 11582 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 11583 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 11584 * need more attributes for that (e.g. BA session requirement);
11585 * change the WMM adminssion test above to allow both then
960d01ac
JB		 11586 */
11587 return -EINVAL;
11588 }
11589
11590 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11591
11592 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
11593 admitted_time =
11594 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11595 if (!admitted_time)
11596 return -EINVAL;
11597 }
11598
11599 wdev_lock(wdev);
11600 switch (wdev->iftype) {
11601 case NL80211_IFTYPE_STATION:
11602 case NL80211_IFTYPE_P2P_CLIENT:
11603 if (wdev->current_bss)
11604 break;
11605 err = -ENOTCONN;
11606 goto out;
11607 default:
11608 err = -EOPNOTSUPP;
11609 goto out;
11610 }
11611
11612 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11613
11614 out:
11615 wdev_unlock(wdev);
11616 return err;
11617}
11618
11619static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11620{
11621 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11622 struct net_device *dev = info->user_ptr[1];
11623 struct wireless_dev *wdev = dev->ieee80211_ptr;
11624 const u8 *peer;
11625 u8 tsid;
11626 int err;
11627
11628 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11629 return -EINVAL;
11630
11631 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11632 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11633
11634 wdev_lock(wdev);
11635 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
11636 wdev_unlock(wdev);
11637
11638 return err;
11639}
11640
1057d35e
AN		 11641static int nl80211_tdls_channel_switch(struct sk_buff *skb,
11642 struct genl_info *info)
11643{
11644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11645 struct net_device *dev = info->user_ptr[1];
11646 struct wireless_dev *wdev = dev->ieee80211_ptr;
11647 struct cfg80211_chan_def chandef = {};
11648 const u8 *addr;
11649 u8 oper_class;
11650 int err;
11651
11652 if (!rdev->ops->tdls_channel_switch ||
11653 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11654 return -EOPNOTSUPP;
11655
11656 switch (dev->ieee80211_ptr->iftype) {
11657 case NL80211_IFTYPE_STATION:
11658 case NL80211_IFTYPE_P2P_CLIENT:
11659 break;
11660 default:
11661 return -EOPNOTSUPP;
11662 }
11663
11664 if (!info->attrs[NL80211_ATTR_MAC] ||
11665 !info->attrs[NL80211_ATTR_OPER_CLASS])
11666 return -EINVAL;
11667
11668 err = nl80211_parse_chandef(rdev, info, &chandef);
11669 if (err)
11670 return err;
11671
11672 /*
11673 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
11674 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
11675 * specification is not defined for them.
11676 */
57fbcce3 11677 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 11678 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
11679 chandef.width != NL80211_CHAN_WIDTH_20)
11680 return -EINVAL;
11681
11682 /* we will be active on the TDLS link */
923b352f
AN		 11683 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11684 wdev->iftype))
1057d35e
AN		 11685 return -EINVAL;
11686
11687 /* don't allow switching to DFS channels */
11688 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11689 return -EINVAL;
11690
11691 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11692 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11693
11694 wdev_lock(wdev);
11695 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11696 wdev_unlock(wdev);
11697
11698 return err;
11699}
11700
11701static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11702 struct genl_info *info)
11703{
11704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11705 struct net_device *dev = info->user_ptr[1];
11706 struct wireless_dev *wdev = dev->ieee80211_ptr;
11707 const u8 *addr;
11708
11709 if (!rdev->ops->tdls_channel_switch ||
11710 !rdev->ops->tdls_cancel_channel_switch ||
11711 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11712 return -EOPNOTSUPP;
11713
11714 switch (dev->ieee80211_ptr->iftype) {
11715 case NL80211_IFTYPE_STATION:
11716 case NL80211_IFTYPE_P2P_CLIENT:
11717 break;
11718 default:
11719 return -EOPNOTSUPP;
11720 }
11721
11722 if (!info->attrs[NL80211_ATTR_MAC])
11723 return -EINVAL;
11724
11725 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11726
11727 wdev_lock(wdev);
11728 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11729 wdev_unlock(wdev);
11730
11731 return 0;
11732}
11733
4c476991
JB		 11734#define NL80211_FLAG_NEED_WIPHY 0x01
11735#define NL80211_FLAG_NEED_NETDEV 0x02
11736#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 11737#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11738#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11739 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 11740#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 11741/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 11742#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11743 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11744#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11745
f84f771d 11746static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11747 struct genl_info *info)
11748{
11749 struct cfg80211_registered_device *rdev;
89a54e48 11750 struct wireless_dev *wdev;
4c476991 11751 struct net_device *dev;
4c476991
JB		 11752 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11753
11754 if (rtnl)
11755 rtnl_lock();
11756
11757 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11758 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11759 if (IS_ERR(rdev)) {
11760 if (rtnl)
11761 rtnl_unlock();
11762 return PTR_ERR(rdev);
11763 }
11764 info->user_ptr[0] = rdev;
1bf614ef
JB		 11765 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11766 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11767 ASSERT_RTNL();
11768
89a54e48
JB		 11769 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11770 info->attrs);
11771 if (IS_ERR(wdev)) {
4c476991
JB		 11772 if (rtnl)
11773 rtnl_unlock();
89a54e48 11774 return PTR_ERR(wdev);
4c476991 11775 }
89a54e48 11776
89a54e48 11777 dev = wdev->netdev;
f26cbf40 11778 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11779
1bf614ef
JB		 11780 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11781 if (!dev) {
1bf614ef
JB		 11782 if (rtnl)
11783 rtnl_unlock();
11784 return -EINVAL;
11785 }
11786
11787 info->user_ptr[1] = dev;
11788 } else {
11789 info->user_ptr[1] = wdev;
41265714 11790 }
1bf614ef 11791
73c7da3d
AVS		 11792 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11793 !wdev_running(wdev)) {
11794 if (rtnl)
11795 rtnl_unlock();
11796 return -ENETDOWN;
11797 }
1bf614ef 11798
73c7da3d 11799 if (dev)
1bf614ef 11800 dev_hold(dev);
89a54e48 11801
4c476991 11802 info->user_ptr[0] = rdev;
4c476991
JB		 11803 }
11804
11805 return 0;
11806}
11807
f84f771d 11808static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11809 struct genl_info *info)
11810{
1bf614ef
JB		 11811 if (info->user_ptr[1]) {
11812 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11813 struct wireless_dev *wdev = info->user_ptr[1];
11814
11815 if (wdev->netdev)
11816 dev_put(wdev->netdev);
11817 } else {
11818 dev_put(info->user_ptr[1]);
11819 }
11820 }
5393b917 11821
4c476991
JB		 11822 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11823 rtnl_unlock();
5393b917
JB		 11824
11825 /* If needed, clear the netlink message payload from the SKB
11826 * as it might contain key data that shouldn't stick around on
11827 * the heap after the SKB is freed. The netlink message header
11828 * is still needed for further processing, so leave it intact.
11829 */
11830 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11831 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11832
11833 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11834 }
4c476991
JB		 11835}
11836
4534de83 11837static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11838 {
11839 .cmd = NL80211_CMD_GET_WIPHY,
11840 .doit = nl80211_get_wiphy,
11841 .dumpit = nl80211_dump_wiphy,
86e8cf98 11842 .done = nl80211_dump_wiphy_done,
55682965
JB		 11843 .policy = nl80211_policy,
11844 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11845 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11846 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11847 },
11848 {
11849 .cmd = NL80211_CMD_SET_WIPHY,
11850 .doit = nl80211_set_wiphy,
11851 .policy = nl80211_policy,
5617c6cd 11852 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11853 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11854 },
11855 {
11856 .cmd = NL80211_CMD_GET_INTERFACE,
11857 .doit = nl80211_get_interface,
11858 .dumpit = nl80211_dump_interface,
11859 .policy = nl80211_policy,
11860 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11861 .internal_flags = NL80211_FLAG_NEED_WDEV |
11862 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11863 },
11864 {
11865 .cmd = NL80211_CMD_SET_INTERFACE,
11866 .doit = nl80211_set_interface,
11867 .policy = nl80211_policy,
5617c6cd 11868 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11869 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11870 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11871 },
11872 {
11873 .cmd = NL80211_CMD_NEW_INTERFACE,
11874 .doit = nl80211_new_interface,
11875 .policy = nl80211_policy,
5617c6cd 11876 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11877 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11878 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11879 },
11880 {
11881 .cmd = NL80211_CMD_DEL_INTERFACE,
11882 .doit = nl80211_del_interface,
11883 .policy = nl80211_policy,
5617c6cd 11884 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11885 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11886 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11887 },
11888 {
11889 .cmd = NL80211_CMD_GET_KEY,
11890 .doit = nl80211_get_key,
11891 .policy = nl80211_policy,
5617c6cd 11892 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11893 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11894 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11895 },
11896 {
11897 .cmd = NL80211_CMD_SET_KEY,
11898 .doit = nl80211_set_key,
11899 .policy = nl80211_policy,
5617c6cd 11900 .flags = GENL_UNS_ADMIN_PERM,
41265714 11901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11902 NL80211_FLAG_NEED_RTNL |
11903 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11904 },
11905 {
11906 .cmd = NL80211_CMD_NEW_KEY,
11907 .doit = nl80211_new_key,
11908 .policy = nl80211_policy,
5617c6cd 11909 .flags = GENL_UNS_ADMIN_PERM,
41265714 11910 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11911 NL80211_FLAG_NEED_RTNL |
11912 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11913 },
11914 {
11915 .cmd = NL80211_CMD_DEL_KEY,
11916 .doit = nl80211_del_key,
11917 .policy = nl80211_policy,
5617c6cd 11918 .flags = GENL_UNS_ADMIN_PERM,
41265714 11919 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11920 NL80211_FLAG_NEED_RTNL,
55682965 11921 },
ed1b6cc7
JB		 11922 {
11923 .cmd = NL80211_CMD_SET_BEACON,
11924 .policy = nl80211_policy,
5617c6cd 11925 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11926 .doit = nl80211_set_beacon,
2b5f8b0b 11927 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11928 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11929 },
11930 {
8860020e 11931 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11932 .policy = nl80211_policy,
5617c6cd 11933 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11934 .doit = nl80211_start_ap,
2b5f8b0b 11935 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11936 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11937 },
11938 {
8860020e 11939 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11940 .policy = nl80211_policy,
5617c6cd 11941 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11942 .doit = nl80211_stop_ap,
2b5f8b0b 11943 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11944 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11945 },
5727ef1b
JB		 11946 {
11947 .cmd = NL80211_CMD_GET_STATION,
11948 .doit = nl80211_get_station,
2ec600d6 11949 .dumpit = nl80211_dump_station,
5727ef1b 11950 .policy = nl80211_policy,
4c476991
JB		 11951 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11952 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11953 },
11954 {
11955 .cmd = NL80211_CMD_SET_STATION,
11956 .doit = nl80211_set_station,
11957 .policy = nl80211_policy,
5617c6cd 11958 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11959 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11960 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11961 },
11962 {
11963 .cmd = NL80211_CMD_NEW_STATION,
11964 .doit = nl80211_new_station,
11965 .policy = nl80211_policy,
5617c6cd 11966 .flags = GENL_UNS_ADMIN_PERM,
41265714 11967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11968 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11969 },
11970 {
11971 .cmd = NL80211_CMD_DEL_STATION,
11972 .doit = nl80211_del_station,
11973 .policy = nl80211_policy,
5617c6cd 11974 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11976 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11977 },
11978 {
11979 .cmd = NL80211_CMD_GET_MPATH,
11980 .doit = nl80211_get_mpath,
11981 .dumpit = nl80211_dump_mpath,
11982 .policy = nl80211_policy,
5617c6cd 11983 .flags = GENL_UNS_ADMIN_PERM,
41265714 11984 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11985 NL80211_FLAG_NEED_RTNL,
2ec600d6 11986 },
66be7d2b
HR		 11987 {
11988 .cmd = NL80211_CMD_GET_MPP,
11989 .doit = nl80211_get_mpp,
11990 .dumpit = nl80211_dump_mpp,
11991 .policy = nl80211_policy,
5617c6cd 11992 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11993 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11994 NL80211_FLAG_NEED_RTNL,
11995 },
2ec600d6
LCC		 11996 {
11997 .cmd = NL80211_CMD_SET_MPATH,
11998 .doit = nl80211_set_mpath,
11999 .policy = nl80211_policy,
5617c6cd 12000 .flags = GENL_UNS_ADMIN_PERM,
41265714 12001 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12002 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12003 },
12004 {
12005 .cmd = NL80211_CMD_NEW_MPATH,
12006 .doit = nl80211_new_mpath,
12007 .policy = nl80211_policy,
5617c6cd 12008 .flags = GENL_UNS_ADMIN_PERM,
41265714 12009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12010 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12011 },
12012 {
12013 .cmd = NL80211_CMD_DEL_MPATH,
12014 .doit = nl80211_del_mpath,
12015 .policy = nl80211_policy,
5617c6cd 12016 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12017 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12018 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12019 },
12020 {
12021 .cmd = NL80211_CMD_SET_BSS,
12022 .doit = nl80211_set_bss,
12023 .policy = nl80211_policy,
5617c6cd 12024 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12025 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12026 NL80211_FLAG_NEED_RTNL,
b2e1b302 12027 },
f130347c
LR		 12028 {
12029 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12030 .doit = nl80211_get_reg_do,
12031 .dumpit = nl80211_get_reg_dump,
f130347c 12032 .policy = nl80211_policy,
5fe231e8 12033 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12034 /* can be retrieved by unprivileged users */
12035 },
b6863036 12036#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12037 {
12038 .cmd = NL80211_CMD_SET_REG,
12039 .doit = nl80211_set_reg,
12040 .policy = nl80211_policy,
12041 .flags = GENL_ADMIN_PERM,
5fe231e8 12042 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12043 },
b6863036 12044#endif
b2e1b302
LR		 12045 {
12046 .cmd = NL80211_CMD_REQ_SET_REG,
12047 .doit = nl80211_req_set_reg,
12048 .policy = nl80211_policy,
93da9cc1 12049 .flags = GENL_ADMIN_PERM,
12050 },
12051 {
24bdd9f4
JC		 12052 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12053 .doit = nl80211_get_mesh_config,
93da9cc1 12054 .policy = nl80211_policy,
12055 /* can be retrieved by unprivileged users */
2b5f8b0b 12056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12057 NL80211_FLAG_NEED_RTNL,
93da9cc1 12058 },
12059 {
24bdd9f4
JC		 12060 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12061 .doit = nl80211_update_mesh_config,
93da9cc1 12062 .policy = nl80211_policy,
5617c6cd 12063 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12065 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12066 },
2a519311
JB		 12067 {
12068 .cmd = NL80211_CMD_TRIGGER_SCAN,
12069 .doit = nl80211_trigger_scan,
12070 .policy = nl80211_policy,
5617c6cd 12071 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12072 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12073 NL80211_FLAG_NEED_RTNL,
2a519311 12074 },
91d3ab46
VK		 12075 {
12076 .cmd = NL80211_CMD_ABORT_SCAN,
12077 .doit = nl80211_abort_scan,
12078 .policy = nl80211_policy,
5617c6cd 12079 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12080 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12081 NL80211_FLAG_NEED_RTNL,
12082 },
2a519311
JB		 12083 {
12084 .cmd = NL80211_CMD_GET_SCAN,
12085 .policy = nl80211_policy,
12086 .dumpit = nl80211_dump_scan,
12087 },
807f8a8c
LC		 12088 {
12089 .cmd = NL80211_CMD_START_SCHED_SCAN,
12090 .doit = nl80211_start_sched_scan,
12091 .policy = nl80211_policy,
5617c6cd 12092 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12094 NL80211_FLAG_NEED_RTNL,
12095 },
12096 {
12097 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12098 .doit = nl80211_stop_sched_scan,
12099 .policy = nl80211_policy,
5617c6cd 12100 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12102 NL80211_FLAG_NEED_RTNL,
12103 },
636a5d36
JM		 12104 {
12105 .cmd = NL80211_CMD_AUTHENTICATE,
12106 .doit = nl80211_authenticate,
12107 .policy = nl80211_policy,
5617c6cd 12108 .flags = GENL_UNS_ADMIN_PERM,
41265714 12109 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12110 NL80211_FLAG_NEED_RTNL |
12111 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12112 },
12113 {
12114 .cmd = NL80211_CMD_ASSOCIATE,
12115 .doit = nl80211_associate,
12116 .policy = nl80211_policy,
5617c6cd 12117 .flags = GENL_UNS_ADMIN_PERM,
41265714 12118 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12119 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12120 },
12121 {
12122 .cmd = NL80211_CMD_DEAUTHENTICATE,
12123 .doit = nl80211_deauthenticate,
12124 .policy = nl80211_policy,
5617c6cd 12125 .flags = GENL_UNS_ADMIN_PERM,
41265714 12126 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12127 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12128 },
12129 {
12130 .cmd = NL80211_CMD_DISASSOCIATE,
12131 .doit = nl80211_disassociate,
12132 .policy = nl80211_policy,
5617c6cd 12133 .flags = GENL_UNS_ADMIN_PERM,
41265714 12134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12135 NL80211_FLAG_NEED_RTNL,
636a5d36 12136 },
04a773ad
JB		 12137 {
12138 .cmd = NL80211_CMD_JOIN_IBSS,
12139 .doit = nl80211_join_ibss,
12140 .policy = nl80211_policy,
5617c6cd 12141 .flags = GENL_UNS_ADMIN_PERM,
41265714 12142 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12143 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12144 },
12145 {
12146 .cmd = NL80211_CMD_LEAVE_IBSS,
12147 .doit = nl80211_leave_ibss,
12148 .policy = nl80211_policy,
5617c6cd 12149 .flags = GENL_UNS_ADMIN_PERM,
41265714 12150 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12151 NL80211_FLAG_NEED_RTNL,
04a773ad 12152 },
aff89a9b
JB		 12153#ifdef CONFIG_NL80211_TESTMODE
12154 {
12155 .cmd = NL80211_CMD_TESTMODE,
12156 .doit = nl80211_testmode_do,
71063f0e 12157 .dumpit = nl80211_testmode_dump,
aff89a9b 12158 .policy = nl80211_policy,
5617c6cd 12159 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12160 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12161 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12162 },
12163#endif
b23aa676
SO		 12164 {
12165 .cmd = NL80211_CMD_CONNECT,
12166 .doit = nl80211_connect,
12167 .policy = nl80211_policy,
5617c6cd 12168 .flags = GENL_UNS_ADMIN_PERM,
41265714 12169 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12170 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 12171 },
12172 {
12173 .cmd = NL80211_CMD_DISCONNECT,
12174 .doit = nl80211_disconnect,
12175 .policy = nl80211_policy,
5617c6cd 12176 .flags = GENL_UNS_ADMIN_PERM,
41265714 12177 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12178 NL80211_FLAG_NEED_RTNL,
b23aa676 12179 },
463d0183
JB		 12180 {
12181 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12182 .doit = nl80211_wiphy_netns,
12183 .policy = nl80211_policy,
5617c6cd 12184 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12185 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12186 NL80211_FLAG_NEED_RTNL,
463d0183 12187 },
61fa713c
HS		 12188 {
12189 .cmd = NL80211_CMD_GET_SURVEY,
12190 .policy = nl80211_policy,
12191 .dumpit = nl80211_dump_survey,
12192 },
67fbb16b
SO		 12193 {
12194 .cmd = NL80211_CMD_SET_PMKSA,
12195 .doit = nl80211_setdel_pmksa,
12196 .policy = nl80211_policy,
5617c6cd 12197 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12198 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12199 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12200 },
12201 {
12202 .cmd = NL80211_CMD_DEL_PMKSA,
12203 .doit = nl80211_setdel_pmksa,
12204 .policy = nl80211_policy,
5617c6cd 12205 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12206 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12207 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12208 },
12209 {
12210 .cmd = NL80211_CMD_FLUSH_PMKSA,
12211 .doit = nl80211_flush_pmksa,
12212 .policy = nl80211_policy,
5617c6cd 12213 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12214 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12215 NL80211_FLAG_NEED_RTNL,
67fbb16b 12216 },
9588bbd5
JM		 12217 {
12218 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12219 .doit = nl80211_remain_on_channel,
12220 .policy = nl80211_policy,
5617c6cd 12221 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12222 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12223 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 12224 },
12225 {
12226 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12227 .doit = nl80211_cancel_remain_on_channel,
12228 .policy = nl80211_policy,
5617c6cd 12229 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12230 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12231 NL80211_FLAG_NEED_RTNL,
9588bbd5 12232 },
13ae75b1
JM		 12233 {
12234 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12235 .doit = nl80211_set_tx_bitrate_mask,
12236 .policy = nl80211_policy,
5617c6cd 12237 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12238 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12239 NL80211_FLAG_NEED_RTNL,
13ae75b1 12240 },
026331c4 12241 {
2e161f78
JB		 12242 .cmd = NL80211_CMD_REGISTER_FRAME,
12243 .doit = nl80211_register_mgmt,
026331c4 12244 .policy = nl80211_policy,
5617c6cd 12245 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12246 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12247 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12248 },
12249 {
2e161f78
JB		 12250 .cmd = NL80211_CMD_FRAME,
12251 .doit = nl80211_tx_mgmt,
026331c4 12252 .policy = nl80211_policy,
5617c6cd 12253 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12254 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12255 NL80211_FLAG_NEED_RTNL,
12256 },
12257 {
12258 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12259 .doit = nl80211_tx_mgmt_cancel_wait,
12260 .policy = nl80211_policy,
5617c6cd 12261 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12262 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12263 NL80211_FLAG_NEED_RTNL,
026331c4 12264 },
ffb9eb3d
KV		 12265 {
12266 .cmd = NL80211_CMD_SET_POWER_SAVE,
12267 .doit = nl80211_set_power_save,
12268 .policy = nl80211_policy,
5617c6cd 12269 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12270 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12271 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 12272 },
12273 {
12274 .cmd = NL80211_CMD_GET_POWER_SAVE,
12275 .doit = nl80211_get_power_save,
12276 .policy = nl80211_policy,
12277 /* can be retrieved by unprivileged users */
4c476991
JB		 12278 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12279 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 12280 },
d6dc1a38
JO		 12281 {
12282 .cmd = NL80211_CMD_SET_CQM,
12283 .doit = nl80211_set_cqm,
12284 .policy = nl80211_policy,
5617c6cd 12285 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12286 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12287 NL80211_FLAG_NEED_RTNL,
d6dc1a38 12288 },
f444de05
JB		 12289 {
12290 .cmd = NL80211_CMD_SET_CHANNEL,
12291 .doit = nl80211_set_channel,
12292 .policy = nl80211_policy,
5617c6cd 12293 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12294 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12295 NL80211_FLAG_NEED_RTNL,
f444de05 12296 },
e8347eba
BJ		 12297 {
12298 .cmd = NL80211_CMD_SET_WDS_PEER,
12299 .doit = nl80211_set_wds_peer,
12300 .policy = nl80211_policy,
5617c6cd 12301 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 12302 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12303 NL80211_FLAG_NEED_RTNL,
e8347eba 12304 },
29cbe68c
JB		 12305 {
12306 .cmd = NL80211_CMD_JOIN_MESH,
12307 .doit = nl80211_join_mesh,
12308 .policy = nl80211_policy,
5617c6cd 12309 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12310 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12311 NL80211_FLAG_NEED_RTNL,
12312 },
12313 {
12314 .cmd = NL80211_CMD_LEAVE_MESH,
12315 .doit = nl80211_leave_mesh,
12316 .policy = nl80211_policy,
5617c6cd 12317 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12318 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12319 NL80211_FLAG_NEED_RTNL,
12320 },
6e0bd6c3
RL		 12321 {
12322 .cmd = NL80211_CMD_JOIN_OCB,
12323 .doit = nl80211_join_ocb,
12324 .policy = nl80211_policy,
5617c6cd 12325 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12326 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12327 NL80211_FLAG_NEED_RTNL,
12328 },
12329 {
12330 .cmd = NL80211_CMD_LEAVE_OCB,
12331 .doit = nl80211_leave_ocb,
12332 .policy = nl80211_policy,
5617c6cd 12333 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12334 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12335 NL80211_FLAG_NEED_RTNL,
12336 },
dfb89c56 12337#ifdef CONFIG_PM
ff1b6e69
JB		 12338 {
12339 .cmd = NL80211_CMD_GET_WOWLAN,
12340 .doit = nl80211_get_wowlan,
12341 .policy = nl80211_policy,
12342 /* can be retrieved by unprivileged users */
12343 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12344 NL80211_FLAG_NEED_RTNL,
12345 },
12346 {
12347 .cmd = NL80211_CMD_SET_WOWLAN,
12348 .doit = nl80211_set_wowlan,
12349 .policy = nl80211_policy,
5617c6cd 12350 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 12351 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12352 NL80211_FLAG_NEED_RTNL,
12353 },
dfb89c56 12354#endif
e5497d76
JB		 12355 {
12356 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12357 .doit = nl80211_set_rekey_data,
12358 .policy = nl80211_policy,
5617c6cd 12359 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 12360 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12361 NL80211_FLAG_NEED_RTNL |
12362 NL80211_FLAG_CLEAR_SKB,
e5497d76 12363 },
109086ce
AN		 12364 {
12365 .cmd = NL80211_CMD_TDLS_MGMT,
12366 .doit = nl80211_tdls_mgmt,
12367 .policy = nl80211_policy,
5617c6cd 12368 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12369 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12370 NL80211_FLAG_NEED_RTNL,
12371 },
12372 {
12373 .cmd = NL80211_CMD_TDLS_OPER,
12374 .doit = nl80211_tdls_oper,
12375 .policy = nl80211_policy,
5617c6cd 12376 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12377 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12378 NL80211_FLAG_NEED_RTNL,
12379 },
28946da7
JB		 12380 {
12381 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
12382 .doit = nl80211_register_unexpected_frame,
12383 .policy = nl80211_policy,
5617c6cd 12384 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 12385 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12386 NL80211_FLAG_NEED_RTNL,
12387 },
7f6cf311
JB		 12388 {
12389 .cmd = NL80211_CMD_PROBE_CLIENT,
12390 .doit = nl80211_probe_client,
12391 .policy = nl80211_policy,
5617c6cd 12392 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 12394 NL80211_FLAG_NEED_RTNL,
12395 },
5e760230
JB		 12396 {
12397 .cmd = NL80211_CMD_REGISTER_BEACONS,
12398 .doit = nl80211_register_beacons,
12399 .policy = nl80211_policy,
5617c6cd 12400 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 12401 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12402 NL80211_FLAG_NEED_RTNL,
12403 },
1d9d9213
SW		 12404 {
12405 .cmd = NL80211_CMD_SET_NOACK_MAP,
12406 .doit = nl80211_set_noack_map,
12407 .policy = nl80211_policy,
5617c6cd 12408 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 12409 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12410 NL80211_FLAG_NEED_RTNL,
12411 },
98104fde
JB		 12412 {
12413 .cmd = NL80211_CMD_START_P2P_DEVICE,
12414 .doit = nl80211_start_p2p_device,
12415 .policy = nl80211_policy,
5617c6cd 12416 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12417 .internal_flags = NL80211_FLAG_NEED_WDEV |
12418 NL80211_FLAG_NEED_RTNL,
12419 },
12420 {
12421 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
12422 .doit = nl80211_stop_p2p_device,
12423 .policy = nl80211_policy,
5617c6cd 12424 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12425 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12426 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 12427 },
12428 {
12429 .cmd = NL80211_CMD_START_NAN,
12430 .doit = nl80211_start_nan,
12431 .policy = nl80211_policy,
12432 .flags = GENL_ADMIN_PERM,
12433 .internal_flags = NL80211_FLAG_NEED_WDEV |
12434 NL80211_FLAG_NEED_RTNL,
12435 },
12436 {
12437 .cmd = NL80211_CMD_STOP_NAN,
12438 .doit = nl80211_stop_nan,
12439 .policy = nl80211_policy,
12440 .flags = GENL_ADMIN_PERM,
12441 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12442 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 12443 },
12444 {
12445 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
12446 .doit = nl80211_nan_add_func,
12447 .policy = nl80211_policy,
12448 .flags = GENL_ADMIN_PERM,
12449 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12450 NL80211_FLAG_NEED_RTNL,
12451 },
12452 {
12453 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
12454 .doit = nl80211_nan_del_func,
12455 .policy = nl80211_policy,
12456 .flags = GENL_ADMIN_PERM,
12457 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12458 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 12459 },
12460 {
12461 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
12462 .doit = nl80211_nan_change_config,
12463 .policy = nl80211_policy,
12464 .flags = GENL_ADMIN_PERM,
12465 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12466 NL80211_FLAG_NEED_RTNL,
98104fde 12467 },
f4e583c8
AQ		 12468 {
12469 .cmd = NL80211_CMD_SET_MCAST_RATE,
12470 .doit = nl80211_set_mcast_rate,
77765eaf 12471 .policy = nl80211_policy,
5617c6cd 12472 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 12473 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12474 NL80211_FLAG_NEED_RTNL,
12475 },
12476 {
12477 .cmd = NL80211_CMD_SET_MAC_ACL,
12478 .doit = nl80211_set_mac_acl,
f4e583c8 12479 .policy = nl80211_policy,
5617c6cd 12480 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 12481 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12482 NL80211_FLAG_NEED_RTNL,
12483 },
04f39047
SW		 12484 {
12485 .cmd = NL80211_CMD_RADAR_DETECT,
12486 .doit = nl80211_start_radar_detection,
12487 .policy = nl80211_policy,
5617c6cd 12488 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 12489 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12490 NL80211_FLAG_NEED_RTNL,
12491 },
3713b4e3
JB		 12492 {
12493 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
12494 .doit = nl80211_get_protocol_features,
12495 .policy = nl80211_policy,
12496 },
355199e0
JM		 12497 {
12498 .cmd = NL80211_CMD_UPDATE_FT_IES,
12499 .doit = nl80211_update_ft_ies,
12500 .policy = nl80211_policy,
5617c6cd 12501 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 12502 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12503 NL80211_FLAG_NEED_RTNL,
12504 },
5de17984
AS		 12505 {
12506 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
12507 .doit = nl80211_crit_protocol_start,
12508 .policy = nl80211_policy,
5617c6cd 12509 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12510 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12511 NL80211_FLAG_NEED_RTNL,
12512 },
12513 {
12514 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
12515 .doit = nl80211_crit_protocol_stop,
12516 .policy = nl80211_policy,
5617c6cd 12517 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12518 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12519 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 12520 },
12521 {
12522 .cmd = NL80211_CMD_GET_COALESCE,
12523 .doit = nl80211_get_coalesce,
12524 .policy = nl80211_policy,
12525 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12526 NL80211_FLAG_NEED_RTNL,
12527 },
12528 {
12529 .cmd = NL80211_CMD_SET_COALESCE,
12530 .doit = nl80211_set_coalesce,
12531 .policy = nl80211_policy,
5617c6cd 12532 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 12533 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12534 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 12535 },
12536 {
12537 .cmd = NL80211_CMD_CHANNEL_SWITCH,
12538 .doit = nl80211_channel_switch,
12539 .policy = nl80211_policy,
5617c6cd 12540 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 12541 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12542 NL80211_FLAG_NEED_RTNL,
12543 },
ad7e718c
JB		 12544 {
12545 .cmd = NL80211_CMD_VENDOR,
12546 .doit = nl80211_vendor_cmd,
7bdbe400 12547 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 12548 .policy = nl80211_policy,
5617c6cd 12549 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 12550 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12551 NL80211_FLAG_NEED_RTNL,
12552 },
fa9ffc74
KP		 12553 {
12554 .cmd = NL80211_CMD_SET_QOS_MAP,
12555 .doit = nl80211_set_qos_map,
12556 .policy = nl80211_policy,
5617c6cd 12557 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 12558 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12559 NL80211_FLAG_NEED_RTNL,
12560 },
960d01ac
JB		 12561 {
12562 .cmd = NL80211_CMD_ADD_TX_TS,
12563 .doit = nl80211_add_tx_ts,
12564 .policy = nl80211_policy,
5617c6cd 12565 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12567 NL80211_FLAG_NEED_RTNL,
12568 },
12569 {
12570 .cmd = NL80211_CMD_DEL_TX_TS,
12571 .doit = nl80211_del_tx_ts,
12572 .policy = nl80211_policy,
5617c6cd 12573 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12574 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12575 NL80211_FLAG_NEED_RTNL,
12576 },
1057d35e
AN		 12577 {
12578 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
12579 .doit = nl80211_tdls_channel_switch,
12580 .policy = nl80211_policy,
5617c6cd 12581 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12583 NL80211_FLAG_NEED_RTNL,
12584 },
12585 {
12586 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
12587 .doit = nl80211_tdls_cancel_channel_switch,
12588 .policy = nl80211_policy,
5617c6cd 12589 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12591 NL80211_FLAG_NEED_RTNL,
12592 },
55682965 12593};
9588bbd5 12594
55682965
JB		 12595/* notification functions */
12596
3bb20556
JB		 12597void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
12598 enum nl80211_commands cmd)
55682965
JB		 12599{
12600 struct sk_buff *msg;
86e8cf98 12601 struct nl80211_dump_wiphy_state state = {};
55682965 12602
3bb20556
JB		 12603 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
12604 cmd != NL80211_CMD_DEL_WIPHY);
12605
fd2120ca 12606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 12607 if (!msg)
12608 return;
12609
3bb20556 12610 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 12611 nlmsg_free(msg);
12612 return;
12613 }
12614
68eb5503 12615 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12616 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 12617}
12618
896ff063
DK		 12619void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
12620 struct wireless_dev *wdev,
12621 enum nl80211_commands cmd)
12622{
12623 struct sk_buff *msg;
12624
12625 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
12626 cmd != NL80211_CMD_DEL_INTERFACE);
12627
12628 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12629 if (!msg)
12630 return;
12631
12632 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
12633 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
12634 nlmsg_free(msg);
12635 return;
12636 }
12637
12638 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12639 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12640}
12641
362a415d
JB		 12642static int nl80211_add_scan_req(struct sk_buff *msg,
12643 struct cfg80211_registered_device *rdev)
12644{
12645 struct cfg80211_scan_request *req = rdev->scan_req;
12646 struct nlattr *nest;
12647 int i;
12648
12649 if (WARN_ON(!req))
12650 return 0;
12651
12652 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
12653 if (!nest)
12654 goto nla_put_failure;
9360ffd1
DM		 12655 for (i = 0; i < req->n_ssids; i++) {
12656 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
12657 goto nla_put_failure;
12658 }
362a415d
JB		 12659 nla_nest_end(msg, nest);
12660
12661 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12662 if (!nest)
12663 goto nla_put_failure;
9360ffd1
DM		 12664 for (i = 0; i < req->n_channels; i++) {
12665 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12666 goto nla_put_failure;
12667 }
362a415d
JB		 12668 nla_nest_end(msg, nest);
12669
9360ffd1
DM		 12670 if (req->ie &&
12671 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
12672 goto nla_put_failure;
362a415d 12673
ae917c9f
JB		 12674 if (req->flags &&
12675 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
12676 goto nla_put_failure;
ed473771 12677
1d76250b
AS		 12678 if (req->info.scan_start_tsf &&
12679 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
12680 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
12681 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
12682 req->info.tsf_bssid)))
12683 goto nla_put_failure;
12684
362a415d
JB		 12685 return 0;
12686 nla_put_failure:
12687 return -ENOBUFS;
12688}
12689
a538e2d5
JB		 12690static int nl80211_send_scan_msg(struct sk_buff *msg,
12691 struct cfg80211_registered_device *rdev,
fd014284 12692 struct wireless_dev *wdev,
15e47304 12693 u32 portid, u32 seq, int flags,
a538e2d5 12694 u32 cmd)
2a519311
JB		 12695{
12696 void *hdr;
12697
15e47304 12698 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 12699 if (!hdr)
12700 return -1;
12701
9360ffd1 12702 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 12703 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12704 wdev->netdev->ifindex)) ||
2dad624e
ND		 12705 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12706 NL80211_ATTR_PAD))
9360ffd1 12707 goto nla_put_failure;
2a519311 12708
362a415d
JB		 12709 /* ignore errors and send incomplete event anyway */
12710 nl80211_add_scan_req(msg, rdev);
2a519311 12711
053c095a
JB		 12712 genlmsg_end(msg, hdr);
12713 return 0;
2a519311
JB		 12714
12715 nla_put_failure:
12716 genlmsg_cancel(msg, hdr);
12717 return -EMSGSIZE;
12718}
12719
807f8a8c
LC		 12720static int
12721nl80211_send_sched_scan_msg(struct sk_buff *msg,
12722 struct cfg80211_registered_device *rdev,
12723 struct net_device *netdev,
15e47304 12724 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 12725{
12726 void *hdr;
12727
15e47304 12728 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 12729 if (!hdr)
12730 return -1;
12731
9360ffd1
DM		 12732 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12733 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12734 goto nla_put_failure;
807f8a8c 12735
053c095a
JB		 12736 genlmsg_end(msg, hdr);
12737 return 0;
807f8a8c
LC		 12738
12739 nla_put_failure:
12740 genlmsg_cancel(msg, hdr);
12741 return -EMSGSIZE;
12742}
12743
a538e2d5 12744void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 12745 struct wireless_dev *wdev)
a538e2d5
JB		 12746{
12747 struct sk_buff *msg;
12748
58050fce 12749 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 12750 if (!msg)
12751 return;
12752
fd014284 12753 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 12754 NL80211_CMD_TRIGGER_SCAN) < 0) {
12755 nlmsg_free(msg);
12756 return;
12757 }
12758
68eb5503 12759 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12760 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 12761}
12762
f9d15d16
JB		 12763struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
12764 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 12765{
12766 struct sk_buff *msg;
12767
fd2120ca 12768 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 12769 if (!msg)
f9d15d16 12770 return NULL;
2a519311 12771
fd014284 12772 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 12773 aborted ? NL80211_CMD_SCAN_ABORTED :
12774 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 12775 nlmsg_free(msg);
f9d15d16 12776 return NULL;
2a519311
JB		 12777 }
12778
f9d15d16 12779 return msg;
2a519311
JB		 12780}
12781
f9d15d16
JB		 12782void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12783 struct sk_buff *msg)
2a519311 12784{
2a519311
JB		 12785 if (!msg)
12786 return;
12787
68eb5503 12788 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12789 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 12790}
12791
807f8a8c
LC		 12792void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12793 struct net_device *netdev)
12794{
12795 struct sk_buff *msg;
12796
12797 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12798 if (!msg)
12799 return;
12800
12801 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12802 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12803 nlmsg_free(msg);
12804 return;
12805 }
12806
68eb5503 12807 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12808 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12809}
12810
12811void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12812 struct net_device *netdev, u32 cmd)
12813{
12814 struct sk_buff *msg;
12815
58050fce 12816 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 12817 if (!msg)
12818 return;
12819
12820 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12821 nlmsg_free(msg);
12822 return;
12823 }
12824
68eb5503 12825 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12826 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12827}
12828
b0d7aa59
JD		 12829static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12830 struct regulatory_request *request)
73d54c9e 12831{
73d54c9e 12832 /* Userspace can always count this one always being set */
9360ffd1
DM		 12833 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12834 goto nla_put_failure;
12835
12836 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12837 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12838 NL80211_REGDOM_TYPE_WORLD))
12839 goto nla_put_failure;
12840 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12841 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12842 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12843 goto nla_put_failure;
12844 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12845 request->intersect) {
12846 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12847 NL80211_REGDOM_TYPE_INTERSECTION))
12848 goto nla_put_failure;
12849 } else {
12850 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12851 NL80211_REGDOM_TYPE_COUNTRY) ||
12852 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12853 request->alpha2))
12854 goto nla_put_failure;
12855 }
12856
ad30ca2c
AN		 12857 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12858 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12859
12860 if (wiphy &&
12861 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12862 goto nla_put_failure;
1bdd716c
AN		 12863
12864 if (wiphy &&
12865 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12866 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12867 goto nla_put_failure;
ad30ca2c 12868 }
73d54c9e 12869
b0d7aa59
JD		 12870 return true;
12871
12872nla_put_failure:
12873 return false;
12874}
12875
12876/*
12877 * This can happen on global regulatory changes or device specific settings
12878 * based on custom regulatory domains.
12879 */
12880void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12881 struct regulatory_request *request)
12882{
12883 struct sk_buff *msg;
12884 void *hdr;
12885
12886 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12887 if (!msg)
12888 return;
12889
12890 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12891 if (!hdr) {
12892 nlmsg_free(msg);
12893 return;
12894 }
12895
12896 if (nl80211_reg_change_event_fill(msg, request) == false)
12897 goto nla_put_failure;
12898
3b7b72ee 12899 genlmsg_end(msg, hdr);
73d54c9e 12900
bc43b28c 12901 rcu_read_lock();
68eb5503 12902 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12903 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 12904 rcu_read_unlock();
73d54c9e
LR		 12905
12906 return;
12907
12908nla_put_failure:
12909 genlmsg_cancel(msg, hdr);
12910 nlmsg_free(msg);
12911}
12912
6039f6d2
JM		 12913static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12914 struct net_device *netdev,
12915 const u8 *buf, size_t len,
b0b6aa2c
EP		 12916 enum nl80211_commands cmd, gfp_t gfp,
12917 int uapsd_queues)
6039f6d2
JM		 12918{
12919 struct sk_buff *msg;
12920 void *hdr;
12921
e6d6e342 12922 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 12923 if (!msg)
12924 return;
12925
12926 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12927 if (!hdr) {
12928 nlmsg_free(msg);
12929 return;
12930 }
12931
9360ffd1
DM		 12932 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12933 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12934 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12935 goto nla_put_failure;
6039f6d2 12936
b0b6aa2c
EP		 12937 if (uapsd_queues >= 0) {
12938 struct nlattr *nla_wmm =
12939 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12940 if (!nla_wmm)
12941 goto nla_put_failure;
12942
12943 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12944 uapsd_queues))
12945 goto nla_put_failure;
12946
12947 nla_nest_end(msg, nla_wmm);
12948 }
12949
3b7b72ee 12950 genlmsg_end(msg, hdr);
6039f6d2 12951
68eb5503 12952 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12953 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12954 return;
12955
12956 nla_put_failure:
12957 genlmsg_cancel(msg, hdr);
12958 nlmsg_free(msg);
12959}
12960
12961void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12962 struct net_device *netdev, const u8 *buf,
12963 size_t len, gfp_t gfp)
6039f6d2
JM		 12964{
12965 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12966 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12967}
12968
12969void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12970 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12971 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12972{
e6d6e342 12973 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12974 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12975}
12976
53b46b84 12977void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12978 struct net_device *netdev, const u8 *buf,
12979 size_t len, gfp_t gfp)
6039f6d2
JM		 12980{
12981 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12982 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12983}
12984
53b46b84
JM		 12985void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12986 struct net_device *netdev, const u8 *buf,
e6d6e342 12987 size_t len, gfp_t gfp)
6039f6d2
JM		 12988{
12989 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12990 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12991}
12992
6ff57cf8
JB		 12993void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12994 size_t len)
cf4e594e 12995{
947add36
JB		 12996 struct wireless_dev *wdev = dev->ieee80211_ptr;
12997 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12998 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12999 const struct ieee80211_mgmt *mgmt = (void *)buf;
13000 u32 cmd;
947add36 13001
6ff57cf8
JB		 13002 if (WARN_ON(len < 2))
13003 return;
cf4e594e 13004
6ff57cf8
JB		 13005 if (ieee80211_is_deauth(mgmt->frame_control))
13006 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13007 else
13008 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13009
6ff57cf8 13010 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13011 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13012}
6ff57cf8 13013EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13014
1b06bb40
LR		 13015static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13016 struct net_device *netdev, int cmd,
e6d6e342 13017 const u8 *addr, gfp_t gfp)
1965c853
JM		 13018{
13019 struct sk_buff *msg;
13020 void *hdr;
13021
e6d6e342 13022 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13023 if (!msg)
13024 return;
13025
13026 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13027 if (!hdr) {
13028 nlmsg_free(msg);
13029 return;
13030 }
13031
9360ffd1
DM		 13032 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13033 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13034 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13035 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13036 goto nla_put_failure;
1965c853 13037
3b7b72ee 13038 genlmsg_end(msg, hdr);
1965c853 13039
68eb5503 13040 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13041 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13042 return;
13043
13044 nla_put_failure:
13045 genlmsg_cancel(msg, hdr);
13046 nlmsg_free(msg);
13047}
13048
13049void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13050 struct net_device *netdev, const u8 *addr,
13051 gfp_t gfp)
1965c853
JM		 13052{
13053 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13054 addr, gfp);
1965c853
JM		 13055}
13056
13057void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13058 struct net_device *netdev, const u8 *addr,
13059 gfp_t gfp)
1965c853 13060{
e6d6e342
JB		 13061 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13062 addr, gfp);
1965c853
JM		 13063}
13064
b23aa676
SO		 13065void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
13066 struct net_device *netdev, const u8 *bssid,
13067 const u8 *req_ie, size_t req_ie_len,
13068 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 13069 int status, gfp_t gfp)
b23aa676
SO		 13070{
13071 struct sk_buff *msg;
13072 void *hdr;
13073
58050fce 13074 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 13075 if (!msg)
13076 return;
13077
13078 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13079 if (!hdr) {
13080 nlmsg_free(msg);
13081 return;
13082 }
13083
9360ffd1
DM		 13084 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13085 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13086 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 13087 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
13088 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13089 status) ||
13090 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 13091 (req_ie &&
13092 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13093 (resp_ie &&
13094 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13095 goto nla_put_failure;
b23aa676 13096
3b7b72ee 13097 genlmsg_end(msg, hdr);
b23aa676 13098
68eb5503 13099 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13100 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13101 return;
13102
13103 nla_put_failure:
13104 genlmsg_cancel(msg, hdr);
13105 nlmsg_free(msg);
b23aa676
SO		 13106}
13107
13108void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13109 struct net_device *netdev, const u8 *bssid,
13110 const u8 *req_ie, size_t req_ie_len,
13111 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
13112{
13113 struct sk_buff *msg;
13114 void *hdr;
13115
58050fce 13116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 13117 if (!msg)
13118 return;
13119
13120 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13121 if (!hdr) {
13122 nlmsg_free(msg);
13123 return;
13124 }
13125
9360ffd1
DM		 13126 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13127 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13128 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13129 (req_ie &&
13130 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13131 (resp_ie &&
13132 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13133 goto nla_put_failure;
b23aa676 13134
3b7b72ee 13135 genlmsg_end(msg, hdr);
b23aa676 13136
68eb5503 13137 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13138 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13139 return;
13140
13141 nla_put_failure:
13142 genlmsg_cancel(msg, hdr);
13143 nlmsg_free(msg);
b23aa676
SO		 13144}
13145
13146void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13147 struct net_device *netdev, u16 reason,
667503dd 13148 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13149{
13150 struct sk_buff *msg;
13151 void *hdr;
13152
58050fce 13153 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 13154 if (!msg)
13155 return;
13156
13157 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13158 if (!hdr) {
13159 nlmsg_free(msg);
13160 return;
13161 }
13162
9360ffd1
DM		 13163 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13164 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13165 (from_ap && reason &&
13166 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13167 (from_ap &&
13168 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13169 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13170 goto nla_put_failure;
b23aa676 13171
3b7b72ee 13172 genlmsg_end(msg, hdr);
b23aa676 13173
68eb5503 13174 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13175 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13176 return;
13177
13178 nla_put_failure:
13179 genlmsg_cancel(msg, hdr);
13180 nlmsg_free(msg);
b23aa676
SO		 13181}
13182
04a773ad
JB		 13183void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13184 struct net_device *netdev, const u8 *bssid,
13185 gfp_t gfp)
13186{
13187 struct sk_buff *msg;
13188 void *hdr;
13189
fd2120ca 13190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13191 if (!msg)
13192 return;
13193
13194 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13195 if (!hdr) {
13196 nlmsg_free(msg);
13197 return;
13198 }
13199
9360ffd1
DM		 13200 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13201 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13202 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13203 goto nla_put_failure;
04a773ad 13204
3b7b72ee 13205 genlmsg_end(msg, hdr);
04a773ad 13206
68eb5503 13207 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13208 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 13209 return;
13210
13211 nla_put_failure:
13212 genlmsg_cancel(msg, hdr);
13213 nlmsg_free(msg);
13214}
13215
947add36
JB		 13216void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13217 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 13218{
947add36 13219 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13220 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 13221 struct sk_buff *msg;
13222 void *hdr;
13223
947add36
JB		 13224 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13225 return;
13226
13227 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13228
c93b5e71
JC		 13229 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13230 if (!msg)
13231 return;
13232
13233 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13234 if (!hdr) {
13235 nlmsg_free(msg);
13236 return;
13237 }
13238
9360ffd1 13239 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 13240 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13241 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 13242 (ie_len && ie &&
13243 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13244 goto nla_put_failure;
c93b5e71 13245
3b7b72ee 13246 genlmsg_end(msg, hdr);
c93b5e71 13247
68eb5503 13248 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13249 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 13250 return;
13251
13252 nla_put_failure:
13253 genlmsg_cancel(msg, hdr);
13254 nlmsg_free(msg);
13255}
947add36 13256EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 13257
a3b8b056
JM		 13258void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13259 struct net_device *netdev, const u8 *addr,
13260 enum nl80211_key_type key_type, int key_id,
e6d6e342 13261 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 13262{
13263 struct sk_buff *msg;
13264 void *hdr;
13265
e6d6e342 13266 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 13267 if (!msg)
13268 return;
13269
13270 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13271 if (!hdr) {
13272 nlmsg_free(msg);
13273 return;
13274 }
13275
9360ffd1
DM		 13276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13277 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13278 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13279 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13280 (key_id != -1 &&
13281 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13282 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13283 goto nla_put_failure;
a3b8b056 13284
3b7b72ee 13285 genlmsg_end(msg, hdr);
a3b8b056 13286
68eb5503 13287 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13288 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 13289 return;
13290
13291 nla_put_failure:
13292 genlmsg_cancel(msg, hdr);
13293 nlmsg_free(msg);
13294}
13295
6bad8766
LR		 13296void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13297 struct ieee80211_channel *channel_before,
13298 struct ieee80211_channel *channel_after)
13299{
13300 struct sk_buff *msg;
13301 void *hdr;
13302 struct nlattr *nl_freq;
13303
fd2120ca 13304 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 13305 if (!msg)
13306 return;
13307
13308 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13309 if (!hdr) {
13310 nlmsg_free(msg);
13311 return;
13312 }
13313
13314 /*
13315 * Since we are applying the beacon hint to a wiphy we know its
13316 * wiphy_idx is valid
13317 */
9360ffd1
DM		 13318 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13319 goto nla_put_failure;
6bad8766
LR		 13320
13321 /* Before */
13322 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13323 if (!nl_freq)
13324 goto nla_put_failure;
cdc89b97 13325 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 13326 goto nla_put_failure;
13327 nla_nest_end(msg, nl_freq);
13328
13329 /* After */
13330 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
13331 if (!nl_freq)
13332 goto nla_put_failure;
cdc89b97 13333 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 13334 goto nla_put_failure;
13335 nla_nest_end(msg, nl_freq);
13336
3b7b72ee 13337 genlmsg_end(msg, hdr);
6bad8766 13338
463d0183 13339 rcu_read_lock();
68eb5503 13340 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13341 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 13342 rcu_read_unlock();
6bad8766
LR		 13343
13344 return;
13345
13346nla_put_failure:
13347 genlmsg_cancel(msg, hdr);
13348 nlmsg_free(msg);
13349}
13350
9588bbd5
JM		 13351static void nl80211_send_remain_on_chan_event(
13352 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 13353 struct wireless_dev *wdev, u64 cookie,
9588bbd5 13354 struct ieee80211_channel *chan,
9588bbd5
JM		 13355 unsigned int duration, gfp_t gfp)
13356{
13357 struct sk_buff *msg;
13358 void *hdr;
13359
13360 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13361 if (!msg)
13362 return;
13363
13364 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13365 if (!hdr) {
13366 nlmsg_free(msg);
13367 return;
13368 }
13369
9360ffd1 13370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13371 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13372 wdev->netdev->ifindex)) ||
2dad624e
ND		 13373 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13374 NL80211_ATTR_PAD) ||
9360ffd1 13375 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 13376 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
13377 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 13378 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13379 NL80211_ATTR_PAD))
9360ffd1 13380 goto nla_put_failure;
9588bbd5 13381
9360ffd1
DM		 13382 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
13383 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
13384 goto nla_put_failure;
9588bbd5 13385
3b7b72ee 13386 genlmsg_end(msg, hdr);
9588bbd5 13387
68eb5503 13388 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13389 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 13390 return;
13391
13392 nla_put_failure:
13393 genlmsg_cancel(msg, hdr);
13394 nlmsg_free(msg);
13395}
13396
947add36
JB		 13397void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
13398 struct ieee80211_channel *chan,
13399 unsigned int duration, gfp_t gfp)
9588bbd5 13400{
947add36 13401 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13402 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13403
13404 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 13405 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 13406 rdev, wdev, cookie, chan,
42d97a59 13407 duration, gfp);
9588bbd5 13408}
947add36 13409EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 13410
947add36
JB		 13411void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
13412 struct ieee80211_channel *chan,
13413 gfp_t gfp)
9588bbd5 13414{
947add36 13415 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13416 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13417
13418 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 13419 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 13420 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 13421}
947add36 13422EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 13423
947add36
JB		 13424void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
13425 struct station_info *sinfo, gfp_t gfp)
98b62183 13426{
947add36 13427 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13428 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 13429 struct sk_buff *msg;
13430
947add36
JB		 13431 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
13432
58050fce 13433 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 13434 if (!msg)
13435 return;
13436
cf5ead82 13437 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 13438 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 13439 nlmsg_free(msg);
13440 return;
13441 }
13442
68eb5503 13443 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13444 NL80211_MCGRP_MLME, gfp);
98b62183 13445}
947add36 13446EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 13447
cf5ead82
JB		 13448void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
13449 struct station_info *sinfo, gfp_t gfp)
ec15e68b 13450{
947add36 13451 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13452 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 13453 struct sk_buff *msg;
cf5ead82
JB		 13454 struct station_info empty_sinfo = {};
13455
13456 if (!sinfo)
13457 sinfo = &empty_sinfo;
ec15e68b 13458
947add36
JB		 13459 trace_cfg80211_del_sta(dev, mac_addr);
13460
58050fce 13461 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 13462 if (!msg)
13463 return;
13464
cf5ead82 13465 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 13466 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 13467 nlmsg_free(msg);
13468 return;
13469 }
13470
68eb5503 13471 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13472 NL80211_MCGRP_MLME, gfp);
ec15e68b 13473}
cf5ead82 13474EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 13475
947add36
JB		 13476void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
13477 enum nl80211_connect_failed_reason reason,
13478 gfp_t gfp)
ed44a951 13479{
947add36 13480 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13481 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 13482 struct sk_buff *msg;
13483 void *hdr;
13484
13485 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
13486 if (!msg)
13487 return;
13488
13489 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
13490 if (!hdr) {
13491 nlmsg_free(msg);
13492 return;
13493 }
13494
13495 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13496 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
13497 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
13498 goto nla_put_failure;
13499
13500 genlmsg_end(msg, hdr);
13501
68eb5503 13502 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13503 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 13504 return;
13505
13506 nla_put_failure:
13507 genlmsg_cancel(msg, hdr);
13508 nlmsg_free(msg);
13509}
947add36 13510EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 13511
b92ab5d8
JB		 13512static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
13513 const u8 *addr, gfp_t gfp)
28946da7
JB		 13514{
13515 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13516 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 13517 struct sk_buff *msg;
13518 void *hdr;
15e47304 13519 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 13520
15e47304 13521 if (!nlportid)
28946da7
JB		 13522 return false;
13523
13524 msg = nlmsg_new(100, gfp);
13525 if (!msg)
13526 return true;
13527
b92ab5d8 13528 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 13529 if (!hdr) {
13530 nlmsg_free(msg);
13531 return true;
13532 }
13533
9360ffd1
DM		 13534 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13535 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13536 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13537 goto nla_put_failure;
28946da7 13538
9c90a9f6 13539 genlmsg_end(msg, hdr);
15e47304 13540 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 13541 return true;
13542
13543 nla_put_failure:
13544 genlmsg_cancel(msg, hdr);
13545 nlmsg_free(msg);
13546 return true;
13547}
13548
947add36
JB		 13549bool cfg80211_rx_spurious_frame(struct net_device *dev,
13550 const u8 *addr, gfp_t gfp)
b92ab5d8 13551{
947add36
JB		 13552 struct wireless_dev *wdev = dev->ieee80211_ptr;
13553 bool ret;
13554
13555 trace_cfg80211_rx_spurious_frame(dev, addr);
13556
13557 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13558 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
13559 trace_cfg80211_return_bool(false);
13560 return false;
13561 }
13562 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
13563 addr, gfp);
13564 trace_cfg80211_return_bool(ret);
13565 return ret;
b92ab5d8 13566}
947add36 13567EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 13568
947add36
JB		 13569bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
13570 const u8 *addr, gfp_t gfp)
b92ab5d8 13571{
947add36
JB		 13572 struct wireless_dev *wdev = dev->ieee80211_ptr;
13573 bool ret;
13574
13575 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
13576
13577 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13578 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
13579 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
13580 trace_cfg80211_return_bool(false);
13581 return false;
13582 }
13583 ret = __nl80211_unexpected_frame(dev,
13584 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
13585 addr, gfp);
13586 trace_cfg80211_return_bool(ret);
13587 return ret;
b92ab5d8 13588}
947add36 13589EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 13590
2e161f78 13591int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 13592 struct wireless_dev *wdev, u32 nlportid,
804483e9 13593 int freq, int sig_dbm,
19504cf5 13594 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 13595{
71bbc994 13596 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13597 struct sk_buff *msg;
13598 void *hdr;
026331c4
JM		 13599
13600 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13601 if (!msg)
13602 return -ENOMEM;
13603
2e161f78 13604 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 13605 if (!hdr) {
13606 nlmsg_free(msg);
13607 return -ENOMEM;
13608 }
13609
9360ffd1 13610 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13611 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13612 netdev->ifindex)) ||
2dad624e
ND		 13613 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13614 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13615 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
13616 (sig_dbm &&
13617 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 13618 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13619 (flags &&
13620 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 13621 goto nla_put_failure;
026331c4 13622
3b7b72ee 13623 genlmsg_end(msg, hdr);
026331c4 13624
15e47304 13625 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 13626
13627 nla_put_failure:
13628 genlmsg_cancel(msg, hdr);
13629 nlmsg_free(msg);
13630 return -ENOBUFS;
13631}
13632
947add36
JB		 13633void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
13634 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 13635{
947add36 13636 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13637 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 13638 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13639 struct sk_buff *msg;
13640 void *hdr;
13641
947add36
JB		 13642 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
13643
026331c4
JM		 13644 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13645 if (!msg)
13646 return;
13647
2e161f78 13648 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 13649 if (!hdr) {
13650 nlmsg_free(msg);
13651 return;
13652 }
13653
9360ffd1 13654 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13655 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13656 netdev->ifindex)) ||
2dad624e
ND		 13657 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13658 NL80211_ATTR_PAD) ||
9360ffd1 13659 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 13660 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13661 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13662 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
13663 goto nla_put_failure;
026331c4 13664
3b7b72ee 13665 genlmsg_end(msg, hdr);
026331c4 13666
68eb5503 13667 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13668 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 13669 return;
13670
13671 nla_put_failure:
13672 genlmsg_cancel(msg, hdr);
13673 nlmsg_free(msg);
13674}
947add36 13675EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 13676
5b97f49d
JB		 13677static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
13678 const char *mac, gfp_t gfp)
d6dc1a38 13679{
947add36 13680 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 13681 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13682 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13683 void **cb;
947add36 13684
d6dc1a38 13685 if (!msg)
5b97f49d 13686 return NULL;
d6dc1a38 13687
5b97f49d
JB		 13688 cb = (void **)msg->cb;
13689
13690 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
13691 if (!cb[0]) {
d6dc1a38 13692 nlmsg_free(msg);
5b97f49d 13693 return NULL;
d6dc1a38
JO		 13694 }
13695
9360ffd1 13696 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 13697 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 13698 goto nla_put_failure;
d6dc1a38 13699
5b97f49d 13700 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 13701 goto nla_put_failure;
13702
5b97f49d
JB		 13703 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
13704 if (!cb[1])
9360ffd1 13705 goto nla_put_failure;
d6dc1a38 13706
5b97f49d 13707 cb[2] = rdev;
d6dc1a38 13708
5b97f49d
JB		 13709 return msg;
13710 nla_put_failure:
13711 nlmsg_free(msg);
13712 return NULL;
13713}
13714
13715static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
13716{
13717 void **cb = (void **)msg->cb;
13718 struct cfg80211_registered_device *rdev = cb[2];
13719
13720 nla_nest_end(msg, cb[1]);
13721 genlmsg_end(msg, cb[0]);
13722
13723 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 13724
68eb5503 13725 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13726 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 13727}
13728
13729void cfg80211_cqm_rssi_notify(struct net_device *dev,
13730 enum nl80211_cqm_rssi_threshold_event rssi_event,
13731 gfp_t gfp)
13732{
13733 struct sk_buff *msg;
13734
13735 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
13736
98f03342
JB		 13737 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13738 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13739 return;
13740
5b97f49d
JB		 13741 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13742 if (!msg)
13743 return;
13744
13745 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13746 rssi_event))
13747 goto nla_put_failure;
13748
13749 cfg80211_send_cqm(msg, gfp);
13750
d6dc1a38
JO		 13751 return;
13752
13753 nla_put_failure:
d6dc1a38
JO		 13754 nlmsg_free(msg);
13755}
947add36 13756EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 13757
5b97f49d
JB		 13758void cfg80211_cqm_txe_notify(struct net_device *dev,
13759 const u8 *peer, u32 num_packets,
13760 u32 rate, u32 intvl, gfp_t gfp)
13761{
13762 struct sk_buff *msg;
13763
13764 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13765 if (!msg)
13766 return;
13767
13768 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
13769 goto nla_put_failure;
13770
13771 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
13772 goto nla_put_failure;
13773
13774 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
13775 goto nla_put_failure;
13776
13777 cfg80211_send_cqm(msg, gfp);
13778 return;
13779
13780 nla_put_failure:
13781 nlmsg_free(msg);
13782}
13783EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13784
13785void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13786 const u8 *peer, u32 num_packets, gfp_t gfp)
13787{
13788 struct sk_buff *msg;
13789
13790 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13791
13792 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13793 if (!msg)
13794 return;
13795
13796 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13797 goto nla_put_failure;
13798
13799 cfg80211_send_cqm(msg, gfp);
13800 return;
13801
13802 nla_put_failure:
13803 nlmsg_free(msg);
13804}
13805EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13806
98f03342
JB		 13807void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13808{
13809 struct sk_buff *msg;
13810
13811 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13812 if (!msg)
13813 return;
13814
13815 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13816 goto nla_put_failure;
13817
13818 cfg80211_send_cqm(msg, gfp);
13819 return;
13820
13821 nla_put_failure:
13822 nlmsg_free(msg);
13823}
13824EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13825
947add36
JB		 13826static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13827 struct net_device *netdev, const u8 *bssid,
13828 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13829{
13830 struct sk_buff *msg;
13831 struct nlattr *rekey_attr;
13832 void *hdr;
13833
58050fce 13834 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13835 if (!msg)
13836 return;
13837
13838 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13839 if (!hdr) {
13840 nlmsg_free(msg);
13841 return;
13842 }
13843
9360ffd1
DM		 13844 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13845 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13846 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13847 goto nla_put_failure;
e5497d76
JB		 13848
13849 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13850 if (!rekey_attr)
13851 goto nla_put_failure;
13852
9360ffd1
DM		 13853 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13854 NL80211_REPLAY_CTR_LEN, replay_ctr))
13855 goto nla_put_failure;
e5497d76
JB		 13856
13857 nla_nest_end(msg, rekey_attr);
13858
3b7b72ee 13859 genlmsg_end(msg, hdr);
e5497d76 13860
68eb5503 13861 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13862 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 13863 return;
13864
13865 nla_put_failure:
13866 genlmsg_cancel(msg, hdr);
13867 nlmsg_free(msg);
13868}
13869
947add36
JB		 13870void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13871 const u8 *replay_ctr, gfp_t gfp)
13872{
13873 struct wireless_dev *wdev = dev->ieee80211_ptr;
13874 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13875 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13876
13877 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13878 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13879}
13880EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13881
13882static void
13883nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13884 struct net_device *netdev, int index,
13885 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 13886{
13887 struct sk_buff *msg;
13888 struct nlattr *attr;
13889 void *hdr;
13890
58050fce 13891 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 13892 if (!msg)
13893 return;
13894
13895 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13896 if (!hdr) {
13897 nlmsg_free(msg);
13898 return;
13899 }
13900
9360ffd1
DM		 13901 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13902 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13903 goto nla_put_failure;
c9df56b4
JM		 13904
13905 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13906 if (!attr)
13907 goto nla_put_failure;
13908
9360ffd1
DM		 13909 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13910 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13911 (preauth &&
13912 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13913 goto nla_put_failure;
c9df56b4
JM		 13914
13915 nla_nest_end(msg, attr);
13916
3b7b72ee 13917 genlmsg_end(msg, hdr);
c9df56b4 13918
68eb5503 13919 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13920 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 13921 return;
13922
13923 nla_put_failure:
13924 genlmsg_cancel(msg, hdr);
13925 nlmsg_free(msg);
13926}
13927
947add36
JB		 13928void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13929 const u8 *bssid, bool preauth, gfp_t gfp)
13930{
13931 struct wireless_dev *wdev = dev->ieee80211_ptr;
13932 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13933 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13934
13935 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13936 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13937}
13938EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13939
13940static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13941 struct net_device *netdev,
13942 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13943 gfp_t gfp,
13944 enum nl80211_commands notif,
13945 u8 count)
5314526b
TP		 13946{
13947 struct sk_buff *msg;
13948 void *hdr;
13949
58050fce 13950 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13951 if (!msg)
13952 return;
13953
f8d7552e 13954 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13955 if (!hdr) {
13956 nlmsg_free(msg);
13957 return;
13958 }
13959
683b6d3b
JB		 13960 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13961 goto nla_put_failure;
13962
13963 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13964 goto nla_put_failure;
5314526b 13965
f8d7552e
LC		 13966 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13967 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13968 goto nla_put_failure;
13969
5314526b
TP		 13970 genlmsg_end(msg, hdr);
13971
68eb5503 13972 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13973 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13974 return;
13975
13976 nla_put_failure:
13977 genlmsg_cancel(msg, hdr);
13978 nlmsg_free(msg);
13979}
13980
947add36
JB		 13981void cfg80211_ch_switch_notify(struct net_device *dev,
13982 struct cfg80211_chan_def *chandef)
84f10708 13983{
947add36
JB		 13984 struct wireless_dev *wdev = dev->ieee80211_ptr;
13985 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13986 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13987
e487eaeb 13988 ASSERT_WDEV_LOCK(wdev);
947add36 13989
e487eaeb 13990 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13991
9e0e2961 13992 wdev->chandef = *chandef;
96f55f12 13993 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13994 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13995 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13996}
13997EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13998
f8d7552e
LC		 13999void cfg80211_ch_switch_started_notify(struct net_device *dev,
14000 struct cfg80211_chan_def *chandef,
14001 u8 count)
14002{
14003 struct wireless_dev *wdev = dev->ieee80211_ptr;
14004 struct wiphy *wiphy = wdev->wiphy;
14005 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14006
14007 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14008
14009 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14010 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14011}
14012EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14013
04f39047
SW		 14014void
14015nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14016 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14017 enum nl80211_radar_event event,
14018 struct net_device *netdev, gfp_t gfp)
14019{
14020 struct sk_buff *msg;
14021 void *hdr;
14022
14023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14024 if (!msg)
14025 return;
14026
14027 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14028 if (!hdr) {
14029 nlmsg_free(msg);
14030 return;
14031 }
14032
14033 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14034 goto nla_put_failure;
14035
14036 /* NOP and radar events don't need a netdev parameter */
14037 if (netdev) {
14038 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14039
14040 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14041 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14042 NL80211_ATTR_PAD))
04f39047
SW		 14043 goto nla_put_failure;
14044 }
14045
14046 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14047 goto nla_put_failure;
14048
14049 if (nl80211_send_chandef(msg, chandef))
14050 goto nla_put_failure;
14051
9c90a9f6 14052 genlmsg_end(msg, hdr);
04f39047 14053
68eb5503 14054 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14055 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14056 return;
14057
14058 nla_put_failure:
14059 genlmsg_cancel(msg, hdr);
14060 nlmsg_free(msg);
14061}
14062
7f6cf311
JB		 14063void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14064 u64 cookie, bool acked, gfp_t gfp)
14065{
14066 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14067 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14068 struct sk_buff *msg;
14069 void *hdr;
7f6cf311 14070
4ee3e063
BL		 14071 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14072
58050fce 14073 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14074
7f6cf311
JB		 14075 if (!msg)
14076 return;
14077
14078 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14079 if (!hdr) {
14080 nlmsg_free(msg);
14081 return;
14082 }
14083
9360ffd1
DM		 14084 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14085 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14086 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14087 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14088 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14089 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14090 goto nla_put_failure;
7f6cf311 14091
9c90a9f6 14092 genlmsg_end(msg, hdr);
7f6cf311 14093
68eb5503 14094 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14095 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14096 return;
14097
14098 nla_put_failure:
14099 genlmsg_cancel(msg, hdr);
14100 nlmsg_free(msg);
14101}
14102EXPORT_SYMBOL(cfg80211_probe_status);
14103
5e760230
JB		 14104void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14105 const u8 *frame, size_t len,
37c73b5f 14106 int freq, int sig_dbm)
5e760230 14107{
f26cbf40 14108 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14109 struct sk_buff *msg;
14110 void *hdr;
37c73b5f 14111 struct cfg80211_beacon_registration *reg;
5e760230 14112
4ee3e063
BL		 14113 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14114
37c73b5f
BG		 14115 spin_lock_bh(&rdev->beacon_registrations_lock);
14116 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14117 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14118 if (!msg) {
14119 spin_unlock_bh(&rdev->beacon_registrations_lock);
14120 return;
14121 }
5e760230 14122
37c73b5f
BG		 14123 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14124 if (!hdr)
14125 goto nla_put_failure;
5e760230 14126
37c73b5f
BG		 14127 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14128 (freq &&
14129 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14130 (sig_dbm &&
14131 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14132 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14133 goto nla_put_failure;
5e760230 14134
37c73b5f 14135 genlmsg_end(msg, hdr);
5e760230 14136
37c73b5f
BG		 14137 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14138 }
14139 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14140 return;
14141
14142 nla_put_failure:
37c73b5f
BG		 14143 spin_unlock_bh(&rdev->beacon_registrations_lock);
14144 if (hdr)
14145 genlmsg_cancel(msg, hdr);
5e760230
JB		 14146 nlmsg_free(msg);
14147}
14148EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14149
cd8f7cb4 14150#ifdef CONFIG_PM
8cd4d456
LC		 14151static int cfg80211_net_detect_results(struct sk_buff *msg,
14152 struct cfg80211_wowlan_wakeup *wakeup)
14153{
14154 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14155 struct nlattr *nl_results, *nl_match, *nl_freqs;
14156 int i, j;
14157
14158 nl_results = nla_nest_start(
14159 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14160 if (!nl_results)
14161 return -EMSGSIZE;
14162
14163 for (i = 0; i < nd->n_matches; i++) {
14164 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14165
14166 nl_match = nla_nest_start(msg, i);
14167 if (!nl_match)
14168 break;
14169
14170 /* The SSID attribute is optional in nl80211, but for
14171 * simplicity reasons it's always present in the
14172 * cfg80211 structure. If a driver can't pass the
14173 * SSID, that needs to be changed. A zero length SSID
14174 * is still a valid SSID (wildcard), so it cannot be
14175 * used for this purpose.
14176 */
14177 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14178 match->ssid.ssid)) {
14179 nla_nest_cancel(msg, nl_match);
14180 goto out;
14181 }
14182
14183 if (match->n_channels) {
14184 nl_freqs = nla_nest_start(
14185 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14186 if (!nl_freqs) {
14187 nla_nest_cancel(msg, nl_match);
14188 goto out;
14189 }
14190
14191 for (j = 0; j < match->n_channels; j++) {
5528fae8 14192 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 14193 nla_nest_cancel(msg, nl_freqs);
14194 nla_nest_cancel(msg, nl_match);
14195 goto out;
14196 }
14197 }
14198
14199 nla_nest_end(msg, nl_freqs);
14200 }
14201
14202 nla_nest_end(msg, nl_match);
14203 }
14204
14205out:
14206 nla_nest_end(msg, nl_results);
14207 return 0;
14208}
14209
cd8f7cb4
JB		 14210void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14211 struct cfg80211_wowlan_wakeup *wakeup,
14212 gfp_t gfp)
14213{
f26cbf40 14214 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 14215 struct sk_buff *msg;
14216 void *hdr;
9c90a9f6 14217 int size = 200;
cd8f7cb4
JB		 14218
14219 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14220
14221 if (wakeup)
14222 size += wakeup->packet_present_len;
14223
14224 msg = nlmsg_new(size, gfp);
14225 if (!msg)
14226 return;
14227
14228 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14229 if (!hdr)
14230 goto free_msg;
14231
14232 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14233 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14234 NL80211_ATTR_PAD))
cd8f7cb4
JB		 14235 goto free_msg;
14236
14237 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14238 wdev->netdev->ifindex))
14239 goto free_msg;
14240
14241 if (wakeup) {
14242 struct nlattr *reasons;
14243
14244 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 14245 if (!reasons)
14246 goto free_msg;
cd8f7cb4
JB		 14247
14248 if (wakeup->disconnect &&
14249 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14250 goto free_msg;
14251 if (wakeup->magic_pkt &&
14252 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14253 goto free_msg;
14254 if (wakeup->gtk_rekey_failure &&
14255 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14256 goto free_msg;
14257 if (wakeup->eap_identity_req &&
14258 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14259 goto free_msg;
14260 if (wakeup->four_way_handshake &&
14261 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14262 goto free_msg;
14263 if (wakeup->rfkill_release &&
14264 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14265 goto free_msg;
14266
14267 if (wakeup->pattern_idx >= 0 &&
14268 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14269 wakeup->pattern_idx))
14270 goto free_msg;
14271
ae917c9f
JB		 14272 if (wakeup->tcp_match &&
14273 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14274 goto free_msg;
2a0e047e 14275
ae917c9f
JB		 14276 if (wakeup->tcp_connlost &&
14277 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14278 goto free_msg;
2a0e047e 14279
ae917c9f
JB		 14280 if (wakeup->tcp_nomoretokens &&
14281 nla_put_flag(msg,
14282 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14283 goto free_msg;
2a0e047e 14284
cd8f7cb4
JB		 14285 if (wakeup->packet) {
14286 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14287 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14288
14289 if (!wakeup->packet_80211) {
14290 pkt_attr =
14291 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14292 len_attr =
14293 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14294 }
14295
14296 if (wakeup->packet_len &&
14297 nla_put_u32(msg, len_attr, wakeup->packet_len))
14298 goto free_msg;
14299
14300 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14301 wakeup->packet))
14302 goto free_msg;
14303 }
14304
8cd4d456
LC		 14305 if (wakeup->net_detect &&
14306 cfg80211_net_detect_results(msg, wakeup))
14307 goto free_msg;
14308
cd8f7cb4
JB		 14309 nla_nest_end(msg, reasons);
14310 }
14311
9c90a9f6 14312 genlmsg_end(msg, hdr);
cd8f7cb4 14313
68eb5503 14314 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14315 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 14316 return;
14317
14318 free_msg:
14319 nlmsg_free(msg);
14320}
14321EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
14322#endif
14323
3475b094
JM		 14324void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
14325 enum nl80211_tdls_operation oper,
14326 u16 reason_code, gfp_t gfp)
14327{
14328 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14329 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 14330 struct sk_buff *msg;
14331 void *hdr;
3475b094
JM		 14332
14333 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
14334 reason_code);
14335
14336 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14337 if (!msg)
14338 return;
14339
14340 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
14341 if (!hdr) {
14342 nlmsg_free(msg);
14343 return;
14344 }
14345
14346 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14347 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14348 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
14349 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
14350 (reason_code > 0 &&
14351 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
14352 goto nla_put_failure;
14353
9c90a9f6 14354 genlmsg_end(msg, hdr);
3475b094 14355
68eb5503 14356 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14357 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 14358 return;
14359
14360 nla_put_failure:
14361 genlmsg_cancel(msg, hdr);
14362 nlmsg_free(msg);
14363}
14364EXPORT_SYMBOL(cfg80211_tdls_oper_request);
14365
026331c4
JM		 14366static int nl80211_netlink_notify(struct notifier_block * nb,
14367 unsigned long state,
14368 void *_notify)
14369{
14370 struct netlink_notify *notify = _notify;
14371 struct cfg80211_registered_device *rdev;
14372 struct wireless_dev *wdev;
37c73b5f 14373 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 14374
8f815cdd 14375 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 14376 return NOTIFY_DONE;
14377
14378 rcu_read_lock();
14379
5e760230 14380 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 14381 bool schedule_destroy_work = false;
93a1e86c
JR		 14382 bool schedule_scan_stop = false;
14383 struct cfg80211_sched_scan_request *sched_scan_req =
14384 rcu_dereference(rdev->sched_scan_req);
14385
14386 if (sched_scan_req && notify->portid &&
14387 sched_scan_req->owner_nlportid == notify->portid)
14388 schedule_scan_stop = true;
78f22b6a 14389
53873f13 14390 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 14391 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 14392
78f22b6a
JB		 14393 if (wdev->owner_nlportid == notify->portid)
14394 schedule_destroy_work = true;
14395 }
14396
37c73b5f
BG		 14397 spin_lock_bh(&rdev->beacon_registrations_lock);
14398 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
14399 list) {
14400 if (reg->nlportid == notify->portid) {
14401 list_del(&reg->list);
14402 kfree(reg);
14403 break;
14404 }
14405 }
14406 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 14407
14408 if (schedule_destroy_work) {
14409 struct cfg80211_iface_destroy *destroy;
14410
14411 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
14412 if (destroy) {
14413 destroy->nlportid = notify->portid;
14414 spin_lock(&rdev->destroy_list_lock);
14415 list_add(&destroy->list, &rdev->destroy_list);
14416 spin_unlock(&rdev->destroy_list_lock);
14417 schedule_work(&rdev->destroy_work);
14418 }
93a1e86c
JR		 14419 } else if (schedule_scan_stop) {
14420 sched_scan_req->owner_nlportid = 0;
14421
14422 if (rdev->ops->sched_scan_stop &&
14423 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
14424 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 14425 }
5e760230 14426 }
026331c4
JM		 14427
14428 rcu_read_unlock();
14429
05050753
I		 14430 /*
14431 * It is possible that the user space process that is controlling the
14432 * indoor setting disappeared, so notify the regulatory core.
14433 */
14434 regulatory_netlink_notify(notify->portid);
6784c7db 14435 return NOTIFY_OK;
026331c4
JM		 14436}
14437
14438static struct notifier_block nl80211_netlink_notifier = {
14439 .notifier_call = nl80211_netlink_notify,
14440};
14441
355199e0
JM		 14442void cfg80211_ft_event(struct net_device *netdev,
14443 struct cfg80211_ft_event_params *ft_event)
14444{
14445 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 14446 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 14447 struct sk_buff *msg;
14448 void *hdr;
355199e0
JM		 14449
14450 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
14451
14452 if (!ft_event->target_ap)
14453 return;
14454
14455 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14456 if (!msg)
14457 return;
14458
14459 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 14460 if (!hdr)
14461 goto out;
355199e0 14462
ae917c9f
JB		 14463 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14464 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14465 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
14466 goto out;
355199e0 14467
ae917c9f
JB		 14468 if (ft_event->ies &&
14469 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
14470 goto out;
14471 if (ft_event->ric_ies &&
14472 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
14473 ft_event->ric_ies))
14474 goto out;
355199e0 14475
9c90a9f6 14476 genlmsg_end(msg, hdr);
355199e0 14477
68eb5503 14478 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14479 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 14480 return;
14481 out:
14482 nlmsg_free(msg);
355199e0
JM		 14483}
14484EXPORT_SYMBOL(cfg80211_ft_event);
14485
5de17984
AS		 14486void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
14487{
14488 struct cfg80211_registered_device *rdev;
14489 struct sk_buff *msg;
14490 void *hdr;
14491 u32 nlportid;
14492
f26cbf40 14493 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 14494 if (!rdev->crit_proto_nlportid)
14495 return;
14496
14497 nlportid = rdev->crit_proto_nlportid;
14498 rdev->crit_proto_nlportid = 0;
14499
14500 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14501 if (!msg)
14502 return;
14503
14504 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
14505 if (!hdr)
14506 goto nla_put_failure;
14507
14508 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14509 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14510 NL80211_ATTR_PAD))
5de17984
AS		 14511 goto nla_put_failure;
14512
14513 genlmsg_end(msg, hdr);
14514
14515 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14516 return;
14517
14518 nla_put_failure:
14519 if (hdr)
14520 genlmsg_cancel(msg, hdr);
14521 nlmsg_free(msg);
5de17984
AS		 14522}
14523EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
14524
348baf0e
JB		 14525void nl80211_send_ap_stopped(struct wireless_dev *wdev)
14526{
14527 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14528 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 14529 struct sk_buff *msg;
14530 void *hdr;
14531
14532 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14533 if (!msg)
14534 return;
14535
14536 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
14537 if (!hdr)
14538 goto out;
14539
14540 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14541 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 14542 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14543 NL80211_ATTR_PAD))
348baf0e
JB		 14544 goto out;
14545
14546 genlmsg_end(msg, hdr);
14547
14548 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
14549 NL80211_MCGRP_MLME, GFP_KERNEL);
14550 return;
14551 out:
14552 nlmsg_free(msg);
14553}
14554
55682965
JB		 14555/* initialisation/exit functions */
14556
14557int nl80211_init(void)
14558{
0d63cbb5 14559 int err;
55682965 14560
2a94fe48
JB		 14561 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
14562 nl80211_mcgrps);
55682965
JB		 14563 if (err)
14564 return err;
14565
026331c4
JM		 14566 err = netlink_register_notifier(&nl80211_netlink_notifier);
14567 if (err)
14568 goto err_out;
14569
55682965
JB		 14570 return 0;
14571 err_out:
14572 genl_unregister_family(&nl80211_fam);
14573 return err;
14574}
14575
14576void nl80211_exit(void)
14577{
026331c4 14578 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 14579 genl_unregister_family(&nl80211_fam);
14580}
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