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Linux 3.10-rc1
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
4c476991
JB		 33static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = "nl80211", /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
89a54e48
JB		 50/* returns ERR_PTR values */
51static struct wireless_dev *
52__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 53{
89a54e48
JB		 54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
58 u64 wdev_id;
59 int wiphy_idx = -1;
60 int ifidx = -1;
55682965 61
89a54e48 62 assert_cfg80211_lock();
55682965 63
89a54e48
JB		 64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
55682965 66
89a54e48
JB		 67 if (have_ifidx)
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 if (have_wdev_id) {
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
55682965
JB		 72 }
73
89a54e48
JB		 74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
76
77 if (wiphy_net(&rdev->wiphy) != netns)
78 continue;
79
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
81 continue;
82
83 mutex_lock(&rdev->devlist_mtx);
84 list_for_each_entry(wdev, &rdev->wdev_list, list) {
85 if (have_ifidx && wdev->netdev &&
86 wdev->netdev->ifindex == ifidx) {
87 result = wdev;
88 break;
89 }
90 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
91 result = wdev;
92 break;
93 }
94 }
95 mutex_unlock(&rdev->devlist_mtx);
96
97 if (result)
98 break;
99 }
100
101 if (result)
102 return result;
103 return ERR_PTR(-ENODEV);
55682965
JB		 104}
105
a9455408 106static struct cfg80211_registered_device *
878d9ec7 107__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 108{
7fee4778
JB		 109 struct cfg80211_registered_device *rdev = NULL, *tmp;
110 struct net_device *netdev;
a9455408
JB		 111
112 assert_cfg80211_lock();
113
878d9ec7 114 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 115 !attrs[NL80211_ATTR_IFINDEX] &&
116 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 117 return ERR_PTR(-EINVAL);
118
878d9ec7 119 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 120 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 121 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 122
89a54e48
JB		 123 if (attrs[NL80211_ATTR_WDEV]) {
124 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
125 struct wireless_dev *wdev;
126 bool found = false;
127
128 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
129 if (tmp) {
130 /* make sure wdev exists */
131 mutex_lock(&tmp->devlist_mtx);
132 list_for_each_entry(wdev, &tmp->wdev_list, list) {
133 if (wdev->identifier != (u32)wdev_id)
134 continue;
135 found = true;
136 break;
137 }
138 mutex_unlock(&tmp->devlist_mtx);
139
140 if (!found)
141 tmp = NULL;
142
143 if (rdev && tmp != rdev)
144 return ERR_PTR(-EINVAL);
145 rdev = tmp;
146 }
147 }
148
878d9ec7
JB		 149 if (attrs[NL80211_ATTR_IFINDEX]) {
150 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 151 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 152 if (netdev) {
153 if (netdev->ieee80211_ptr)
154 tmp = wiphy_to_dev(
155 netdev->ieee80211_ptr->wiphy);
156 else
157 tmp = NULL;
158
159 dev_put(netdev);
160
161 /* not wireless device -- return error */
162 if (!tmp)
163 return ERR_PTR(-EINVAL);
164
165 /* mismatch -- return error */
166 if (rdev && tmp != rdev)
167 return ERR_PTR(-EINVAL);
168
169 rdev = tmp;
a9455408 170 }
a9455408 171 }
a9455408 172
4f7eff10
JB		 173 if (!rdev)
174 return ERR_PTR(-ENODEV);
a9455408 175
4f7eff10
JB		 176 if (netns != wiphy_net(&rdev->wiphy))
177 return ERR_PTR(-ENODEV);
178
179 return rdev;
a9455408
JB		 180}
181
182/*
183 * This function returns a pointer to the driver
184 * that the genl_info item that is passed refers to.
185 * If successful, it returns non-NULL and also locks
186 * the driver's mutex!
187 *
188 * This means that you need to call cfg80211_unlock_rdev()
189 * before being allowed to acquire &cfg80211_mutex!
190 *
191 * This is necessary because we need to lock the global
192 * mutex to get an item off the list safely, and then
193 * we lock the rdev mutex so it doesn't go away under us.
194 *
195 * We don't want to keep cfg80211_mutex locked
196 * for all the time in order to allow requests on
197 * other interfaces to go through at the same time.
198 *
199 * The result of this can be a PTR_ERR and hence must
200 * be checked with IS_ERR() for errors.
201 */
202static struct cfg80211_registered_device *
4f7eff10 203cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 204{
205 struct cfg80211_registered_device *rdev;
206
207 mutex_lock(&cfg80211_mutex);
878d9ec7 208 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209
210 /* if it is not an error we grab the lock on
211 * it to assure it won't be going away while
212 * we operate on it */
213 if (!IS_ERR(rdev))
214 mutex_lock(&rdev->mtx);
215
216 mutex_unlock(&cfg80211_mutex);
217
218 return rdev;
219}
220
55682965 221/* policy for the attributes */
b54452b0 222static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 223 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
224 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 225 .len = 20-1 },
31888487 226 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 227
72bdcf34 228 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 229 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 230 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
232 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
233
b9a5f8ca
JM		 234 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
236 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
237 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 238 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 239
240 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
242 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 243
e007b857
EP		 244 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
245 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 246
b9454e83 247 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 248 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
249 .len = WLAN_MAX_KEY_LEN },
250 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
251 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
252 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 253 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 254 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 255
256 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
257 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
258 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
259 .len = IEEE80211_MAX_DATA_LEN },
260 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 262 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
263 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
264 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
265 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
266 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 267 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 268 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 269 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 270 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 271 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 272 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 273
b2e1b302
LR		 274 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
275 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
276
9f1ba906
JM		 277 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
279 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 280 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
281 .len = NL80211_MAX_SUPP_RATES },
50b12f59 282 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 283
24bdd9f4 284 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 285 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 286
6c739419 287 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 288
289 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
290 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
291 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 292 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
293 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 294
295 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
296 .len = IEEE80211_MAX_SSID_LEN },
297 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
298 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 299 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 300 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 301 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 302 [NL80211_ATTR_STA_FLAGS2] = {
303 .len = sizeof(struct nl80211_sta_flag_update),
304 },
3f77316c 305 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 306 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
307 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 308 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
309 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
310 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 311 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 312 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 313 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
314 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 315 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
316 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 317 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 318 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
319 .len = IEEE80211_MAX_DATA_LEN },
320 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 321 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 322 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 323 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 324 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 325 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
326 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 327 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 328 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
329 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 330 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 331 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 332 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 333 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 334 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 335 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 336 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 337 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 338 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 339 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
340 .len = IEEE80211_MAX_DATA_LEN },
341 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 343 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 344 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 345 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 346 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
349 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 351 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 352 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
353 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 354 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 355 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
356 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
357 .len = NL80211_HT_CAPABILITY_LEN
358 },
1d9d9213 359 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 360 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 361 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 362 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 363 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 364 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 365 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 366 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 367 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
368 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 369 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
370 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 371 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
372 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 373 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 374 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
375 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
376 .len = NL80211_VHT_CAPABILITY_LEN,
377 },
355199e0
JM		 378 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
379 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
380 .len = IEEE80211_MAX_DATA_LEN },
55682965
JB		 381};
382
e31b8213 383/* policy for the key attributes */
b54452b0 384static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 385 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 386 [NL80211_KEY_IDX] = { .type = NLA_U8 },
387 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 388 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 389 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
390 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 391 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 392 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
393};
394
395/* policy for the key default flags */
396static const struct nla_policy
397nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
398 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
399 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 400};
401
ff1b6e69
JB		 402/* policy for WoWLAN attributes */
403static const struct nla_policy
404nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
405 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
406 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
407 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
408 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 409 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
410 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
411 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 413 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
414};
415
416static const struct nla_policy
417nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
418 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
419 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
420 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
421 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
422 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
423 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
424 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
425 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
426 },
427 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
428 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
429 },
430 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
431 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
432 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 433};
434
e5497d76
JB		 435/* policy for GTK rekey offload attributes */
436static const struct nla_policy
437nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
438 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
439 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
440 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
441};
442
a1f1c21c
LC		 443static const struct nla_policy
444nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 445 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 446 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 447 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 448};
449
97990a06
JB		 450static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
451 struct netlink_callback *cb,
452 struct cfg80211_registered_device **rdev,
453 struct wireless_dev **wdev)
a043897a 454{
97990a06 455 int err;
a043897a 456
97990a06
JB		 457 rtnl_lock();
458 mutex_lock(&cfg80211_mutex);
a043897a 459
97990a06
JB		 460 if (!cb->args[0]) {
461 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
462 nl80211_fam.attrbuf, nl80211_fam.maxattr,
463 nl80211_policy);
464 if (err)
465 goto out_unlock;
67748893 466
97990a06
JB		 467 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
468 nl80211_fam.attrbuf);
469 if (IS_ERR(*wdev)) {
470 err = PTR_ERR(*wdev);
471 goto out_unlock;
472 }
473 *rdev = wiphy_to_dev((*wdev)->wiphy);
474 cb->args[0] = (*rdev)->wiphy_idx;
475 cb->args[1] = (*wdev)->identifier;
476 } else {
477 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
478 struct wireless_dev *tmp;
67748893 479
97990a06
JB		 480 if (!wiphy) {
481 err = -ENODEV;
482 goto out_unlock;
483 }
484 *rdev = wiphy_to_dev(wiphy);
485 *wdev = NULL;
67748893 486
97990a06
JB		 487 mutex_lock(&(*rdev)->devlist_mtx);
488 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
489 if (tmp->identifier == cb->args[1]) {
490 *wdev = tmp;
491 break;
492 }
493 }
494 mutex_unlock(&(*rdev)->devlist_mtx);
67748893 495
97990a06
JB		 496 if (!*wdev) {
497 err = -ENODEV;
498 goto out_unlock;
499 }
67748893
JB		 500 }
501
97990a06 502 cfg80211_lock_rdev(*rdev);
67748893 503
97990a06 504 mutex_unlock(&cfg80211_mutex);
67748893 505 return 0;
97990a06
JB		 506 out_unlock:
507 mutex_unlock(&cfg80211_mutex);
67748893
JB		 508 rtnl_unlock();
509 return err;
510}
511
97990a06 512static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893
JB		 513{
514 cfg80211_unlock_rdev(rdev);
515 rtnl_unlock();
516}
517
f4a11bb0
JB		 518/* IE validation */
519static bool is_valid_ie_attr(const struct nlattr *attr)
520{
521 const u8 *pos;
522 int len;
523
524 if (!attr)
525 return true;
526
527 pos = nla_data(attr);
528 len = nla_len(attr);
529
530 while (len) {
531 u8 elemlen;
532
533 if (len < 2)
534 return false;
535 len -= 2;
536
537 elemlen = pos[1];
538 if (elemlen > len)
539 return false;
540
541 len -= elemlen;
542 pos += 2 + elemlen;
543 }
544
545 return true;
546}
547
55682965 548/* message building helper */
15e47304 549static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 550 int flags, u8 cmd)
551{
552 /* since there is no private header just add the generic one */
15e47304 553 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 554}
555
5dab3b8a 556static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 557 struct ieee80211_channel *chan,
558 bool large)
5dab3b8a 559{
9360ffd1
DM		 560 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
561 chan->center_freq))
562 goto nla_put_failure;
5dab3b8a 563
9360ffd1
DM		 564 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
565 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
566 goto nla_put_failure;
567 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
568 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
569 goto nla_put_failure;
570 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
571 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
572 goto nla_put_failure;
cdc89b97
JB		 573 if (chan->flags & IEEE80211_CHAN_RADAR) {
574 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
575 goto nla_put_failure;
576 if (large) {
577 u32 time;
578
579 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
580
581 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
582 chan->dfs_state))
583 goto nla_put_failure;
584 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
585 time))
586 goto nla_put_failure;
587 }
588 }
5dab3b8a 589
fe1abafd
JB		 590 if (large) {
591 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
592 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
593 goto nla_put_failure;
594 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
595 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
596 goto nla_put_failure;
597 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
598 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
599 goto nla_put_failure;
600 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
601 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
602 goto nla_put_failure;
603 }
604
9360ffd1
DM		 605 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
606 DBM_TO_MBM(chan->max_power)))
607 goto nla_put_failure;
5dab3b8a
LR		 608
609 return 0;
610
611 nla_put_failure:
612 return -ENOBUFS;
613}
614
55682965
JB		 615/* netlink command implementations */
616
b9454e83
JB		 617struct key_parse {
618 struct key_params p;
619 int idx;
e31b8213 620 int type;
b9454e83 621 bool def, defmgmt;
dbd2fd65 622 bool def_uni, def_multi;
b9454e83
JB		 623};
624
625static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
626{
627 struct nlattr *tb[NL80211_KEY_MAX + 1];
628 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
629 nl80211_key_policy);
630 if (err)
631 return err;
632
633 k->def = !!tb[NL80211_KEY_DEFAULT];
634 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
635
dbd2fd65
JB		 636 if (k->def) {
637 k->def_uni = true;
638 k->def_multi = true;
639 }
640 if (k->defmgmt)
641 k->def_multi = true;
642
b9454e83
JB		 643 if (tb[NL80211_KEY_IDX])
644 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
645
646 if (tb[NL80211_KEY_DATA]) {
647 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
648 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
649 }
650
651 if (tb[NL80211_KEY_SEQ]) {
652 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
653 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
654 }
655
656 if (tb[NL80211_KEY_CIPHER])
657 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
658
e31b8213
JB		 659 if (tb[NL80211_KEY_TYPE]) {
660 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
661 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
662 return -EINVAL;
663 }
664
dbd2fd65
JB		 665 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
666 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 667 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
668 tb[NL80211_KEY_DEFAULT_TYPES],
669 nl80211_key_default_policy);
dbd2fd65
JB		 670 if (err)
671 return err;
672
673 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
674 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
675 }
676
b9454e83
JB		 677 return 0;
678}
679
680static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
681{
682 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
683 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
684 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
685 }
686
687 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
688 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
689 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
690 }
691
692 if (info->attrs[NL80211_ATTR_KEY_IDX])
693 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
694
695 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
696 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
697
698 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
699 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
700
dbd2fd65
JB		 701 if (k->def) {
702 k->def_uni = true;
703 k->def_multi = true;
704 }
705 if (k->defmgmt)
706 k->def_multi = true;
707
e31b8213
JB		 708 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
709 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
710 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
711 return -EINVAL;
712 }
713
dbd2fd65
JB		 714 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
715 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
716 int err = nla_parse_nested(
717 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
718 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
719 nl80211_key_default_policy);
720 if (err)
721 return err;
722
723 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
724 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
725 }
726
b9454e83
JB		 727 return 0;
728}
729
730static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
731{
732 int err;
733
734 memset(k, 0, sizeof(*k));
735 k->idx = -1;
e31b8213 736 k->type = -1;
b9454e83
JB		 737
738 if (info->attrs[NL80211_ATTR_KEY])
739 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
740 else
741 err = nl80211_parse_key_old(info, k);
742
743 if (err)
744 return err;
745
746 if (k->def && k->defmgmt)
747 return -EINVAL;
748
dbd2fd65
JB		 749 if (k->defmgmt) {
750 if (k->def_uni || !k->def_multi)
751 return -EINVAL;
752 }
753
b9454e83
JB		 754 if (k->idx != -1) {
755 if (k->defmgmt) {
756 if (k->idx < 4 || k->idx > 5)
757 return -EINVAL;
758 } else if (k->def) {
759 if (k->idx < 0 || k->idx > 3)
760 return -EINVAL;
761 } else {
762 if (k->idx < 0 || k->idx > 5)
763 return -EINVAL;
764 }
765 }
766
767 return 0;
768}
769
fffd0934
JB		 770static struct cfg80211_cached_keys *
771nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 772 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 773{
774 struct key_parse parse;
775 struct nlattr *key;
776 struct cfg80211_cached_keys *result;
777 int rem, err, def = 0;
778
779 result = kzalloc(sizeof(*result), GFP_KERNEL);
780 if (!result)
781 return ERR_PTR(-ENOMEM);
782
783 result->def = -1;
784 result->defmgmt = -1;
785
786 nla_for_each_nested(key, keys, rem) {
787 memset(&parse, 0, sizeof(parse));
788 parse.idx = -1;
789
790 err = nl80211_parse_key_new(key, &parse);
791 if (err)
792 goto error;
793 err = -EINVAL;
794 if (!parse.p.key)
795 goto error;
796 if (parse.idx < 0 || parse.idx > 4)
797 goto error;
798 if (parse.def) {
799 if (def)
800 goto error;
801 def = 1;
802 result->def = parse.idx;
dbd2fd65
JB		 803 if (!parse.def_uni || !parse.def_multi)
804 goto error;
fffd0934
JB		 805 } else if (parse.defmgmt)
806 goto error;
807 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 808 parse.idx, false, NULL);
fffd0934
JB		 809 if (err)
810 goto error;
811 result->params[parse.idx].cipher = parse.p.cipher;
812 result->params[parse.idx].key_len = parse.p.key_len;
813 result->params[parse.idx].key = result->data[parse.idx];
814 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 815
816 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
817 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
818 if (no_ht)
819 *no_ht = true;
820 }
fffd0934
JB		 821 }
822
823 return result;
824 error:
825 kfree(result);
826 return ERR_PTR(err);
827}
828
829static int nl80211_key_allowed(struct wireless_dev *wdev)
830{
831 ASSERT_WDEV_LOCK(wdev);
832
fffd0934
JB		 833 switch (wdev->iftype) {
834 case NL80211_IFTYPE_AP:
835 case NL80211_IFTYPE_AP_VLAN:
074ac8df 836 case NL80211_IFTYPE_P2P_GO:
ff973af7 837 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 838 break;
839 case NL80211_IFTYPE_ADHOC:
840 if (!wdev->current_bss)
841 return -ENOLINK;
842 break;
843 case NL80211_IFTYPE_STATION:
074ac8df 844 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 845 if (wdev->sme_state != CFG80211_SME_CONNECTED)
846 return -ENOLINK;
847 break;
848 default:
849 return -EINVAL;
850 }
851
852 return 0;
853}
854
7527a782
JB		 855static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
856{
857 struct nlattr *nl_modes = nla_nest_start(msg, attr);
858 int i;
859
860 if (!nl_modes)
861 goto nla_put_failure;
862
863 i = 0;
864 while (ifmodes) {
9360ffd1
DM		 865 if ((ifmodes & 1) && nla_put_flag(msg, i))
866 goto nla_put_failure;
7527a782
JB		 867 ifmodes >>= 1;
868 i++;
869 }
870
871 nla_nest_end(msg, nl_modes);
872 return 0;
873
874nla_put_failure:
875 return -ENOBUFS;
876}
877
878static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 879 struct sk_buff *msg,
880 bool large)
7527a782
JB		 881{
882 struct nlattr *nl_combis;
883 int i, j;
884
885 nl_combis = nla_nest_start(msg,
886 NL80211_ATTR_INTERFACE_COMBINATIONS);
887 if (!nl_combis)
888 goto nla_put_failure;
889
890 for (i = 0; i < wiphy->n_iface_combinations; i++) {
891 const struct ieee80211_iface_combination *c;
892 struct nlattr *nl_combi, *nl_limits;
893
894 c = &wiphy->iface_combinations[i];
895
896 nl_combi = nla_nest_start(msg, i + 1);
897 if (!nl_combi)
898 goto nla_put_failure;
899
900 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
901 if (!nl_limits)
902 goto nla_put_failure;
903
904 for (j = 0; j < c->n_limits; j++) {
905 struct nlattr *nl_limit;
906
907 nl_limit = nla_nest_start(msg, j + 1);
908 if (!nl_limit)
909 goto nla_put_failure;
9360ffd1
DM		 910 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
911 c->limits[j].max))
912 goto nla_put_failure;
7527a782
JB		 913 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
914 c->limits[j].types))
915 goto nla_put_failure;
916 nla_nest_end(msg, nl_limit);
917 }
918
919 nla_nest_end(msg, nl_limits);
920
9360ffd1
DM		 921 if (c->beacon_int_infra_match &&
922 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
923 goto nla_put_failure;
924 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
925 c->num_different_channels) ||
926 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
927 c->max_interfaces))
928 goto nla_put_failure;
cdc89b97
JB		 929 if (large &&
930 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
931 c->radar_detect_widths))
932 goto nla_put_failure;
7527a782
JB		 933
934 nla_nest_end(msg, nl_combi);
935 }
936
937 nla_nest_end(msg, nl_combis);
938
939 return 0;
940nla_put_failure:
941 return -ENOBUFS;
942}
943
3713b4e3 944#ifdef CONFIG_PM
b56cf720
JB		 945static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
946 struct sk_buff *msg)
947{
948 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
949 struct nlattr *nl_tcp;
950
951 if (!tcp)
952 return 0;
953
954 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
955 if (!nl_tcp)
956 return -ENOBUFS;
957
958 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
959 tcp->data_payload_max))
960 return -ENOBUFS;
961
962 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
963 tcp->data_payload_max))
964 return -ENOBUFS;
965
966 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
967 return -ENOBUFS;
968
969 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
970 sizeof(*tcp->tok), tcp->tok))
971 return -ENOBUFS;
972
973 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
974 tcp->data_interval_max))
975 return -ENOBUFS;
976
977 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
978 tcp->wake_payload_max))
979 return -ENOBUFS;
980
981 nla_nest_end(msg, nl_tcp);
982 return 0;
983}
984
3713b4e3 985static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 986 struct cfg80211_registered_device *dev,
987 bool large)
55682965 988{
3713b4e3 989 struct nlattr *nl_wowlan;
55682965 990
3713b4e3
JB		 991 if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
992 return 0;
55682965 993
3713b4e3
JB		 994 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
995 if (!nl_wowlan)
996 return -ENOBUFS;
9360ffd1 997
3713b4e3
JB		 998 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
999 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1000 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1001 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1002 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1003 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1004 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1005 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1006 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1007 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1008 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1009 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1010 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1011 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1012 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1013 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1014 return -ENOBUFS;
9360ffd1 1015
3713b4e3
JB		 1016 if (dev->wiphy.wowlan.n_patterns) {
1017 struct nl80211_wowlan_pattern_support pat = {
1018 .max_patterns = dev->wiphy.wowlan.n_patterns,
1019 .min_pattern_len = dev->wiphy.wowlan.pattern_min_len,
1020 .max_pattern_len = dev->wiphy.wowlan.pattern_max_len,
1021 .max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
1022 };
9360ffd1 1023
3713b4e3
JB		 1024 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1025 sizeof(pat), &pat))
1026 return -ENOBUFS;
1027 }
9360ffd1 1028
b56cf720
JB		 1029 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1030 return -ENOBUFS;
1031
3713b4e3 1032 nla_nest_end(msg, nl_wowlan);
9360ffd1 1033
3713b4e3
JB		 1034 return 0;
1035}
1036#endif
9360ffd1 1037
3713b4e3
JB		 1038static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1039 struct ieee80211_supported_band *sband)
1040{
1041 struct nlattr *nl_rates, *nl_rate;
1042 struct ieee80211_rate *rate;
1043 int i;
87bbbe22 1044
3713b4e3
JB		 1045 /* add HT info */
1046 if (sband->ht_cap.ht_supported &&
1047 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1048 sizeof(sband->ht_cap.mcs),
1049 &sband->ht_cap.mcs) ||
1050 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1051 sband->ht_cap.cap) ||
1052 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1053 sband->ht_cap.ampdu_factor) ||
1054 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1055 sband->ht_cap.ampdu_density)))
1056 return -ENOBUFS;
afe0cbf8 1057
3713b4e3
JB		 1058 /* add VHT info */
1059 if (sband->vht_cap.vht_supported &&
1060 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1061 sizeof(sband->vht_cap.vht_mcs),
1062 &sband->vht_cap.vht_mcs) ||
1063 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1064 sband->vht_cap.cap)))
1065 return -ENOBUFS;
f59ac048 1066
3713b4e3
JB		 1067 /* add bitrates */
1068 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1069 if (!nl_rates)
1070 return -ENOBUFS;
ee688b00 1071
3713b4e3
JB		 1072 for (i = 0; i < sband->n_bitrates; i++) {
1073 nl_rate = nla_nest_start(msg, i);
1074 if (!nl_rate)
1075 return -ENOBUFS;
ee688b00 1076
3713b4e3
JB		 1077 rate = &sband->bitrates[i];
1078 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1079 rate->bitrate))
1080 return -ENOBUFS;
1081 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1082 nla_put_flag(msg,
1083 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1084 return -ENOBUFS;
ee688b00 1085
3713b4e3
JB		 1086 nla_nest_end(msg, nl_rate);
1087 }
d51626df 1088
3713b4e3 1089 nla_nest_end(msg, nl_rates);
bf0c111e 1090
3713b4e3
JB		 1091 return 0;
1092}
ee688b00 1093
3713b4e3
JB		 1094static int
1095nl80211_send_mgmt_stypes(struct sk_buff *msg,
1096 const struct ieee80211_txrx_stypes *mgmt_stypes)
1097{
1098 u16 stypes;
1099 struct nlattr *nl_ftypes, *nl_ifs;
1100 enum nl80211_iftype ift;
1101 int i;
ee688b00 1102
3713b4e3
JB		 1103 if (!mgmt_stypes)
1104 return 0;
5dab3b8a 1105
3713b4e3
JB		 1106 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1107 if (!nl_ifs)
1108 return -ENOBUFS;
e2f367f2 1109
3713b4e3
JB		 1110 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1111 nl_ftypes = nla_nest_start(msg, ift);
1112 if (!nl_ftypes)
1113 return -ENOBUFS;
1114 i = 0;
1115 stypes = mgmt_stypes[ift].tx;
1116 while (stypes) {
1117 if ((stypes & 1) &&
1118 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1119 (i << 4) | IEEE80211_FTYPE_MGMT))
1120 return -ENOBUFS;
1121 stypes >>= 1;
1122 i++;
ee688b00 1123 }
3713b4e3
JB		 1124 nla_nest_end(msg, nl_ftypes);
1125 }
ee688b00 1126
3713b4e3 1127 nla_nest_end(msg, nl_ifs);
ee688b00 1128
3713b4e3
JB		 1129 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1130 if (!nl_ifs)
1131 return -ENOBUFS;
ee688b00 1132
3713b4e3
JB		 1133 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1134 nl_ftypes = nla_nest_start(msg, ift);
1135 if (!nl_ftypes)
1136 return -ENOBUFS;
1137 i = 0;
1138 stypes = mgmt_stypes[ift].rx;
1139 while (stypes) {
1140 if ((stypes & 1) &&
1141 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1142 (i << 4) | IEEE80211_FTYPE_MGMT))
1143 return -ENOBUFS;
1144 stypes >>= 1;
1145 i++;
1146 }
1147 nla_nest_end(msg, nl_ftypes);
1148 }
1149 nla_nest_end(msg, nl_ifs);
ee688b00 1150
3713b4e3
JB		 1151 return 0;
1152}
ee688b00 1153
3713b4e3
JB		 1154static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1155 struct sk_buff *msg, u32 portid, u32 seq,
1156 int flags, bool split, long *split_start,
1157 long *band_start, long *chan_start)
1158{
1159 void *hdr;
1160 struct nlattr *nl_bands, *nl_band;
1161 struct nlattr *nl_freqs, *nl_freq;
1162 struct nlattr *nl_cmds;
1163 enum ieee80211_band band;
1164 struct ieee80211_channel *chan;
1165 int i;
1166 const struct ieee80211_txrx_stypes *mgmt_stypes =
1167 dev->wiphy.mgmt_stypes;
1168 long start = 0, start_chan = 0, start_band = 0;
fe1abafd 1169 u32 features;
ee688b00 1170
3713b4e3
JB		 1171 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1172 if (!hdr)
1173 return -ENOBUFS;
ee688b00 1174
3713b4e3
JB		 1175 /* allow always using the variables */
1176 if (!split) {
1177 split_start = &start;
1178 band_start = &start_band;
1179 chan_start = &start_chan;
ee688b00 1180 }
ee688b00 1181
3713b4e3
JB		 1182 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1183 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1184 wiphy_name(&dev->wiphy)) ||
1185 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1186 cfg80211_rdev_list_generation))
8fdc621d
JB		 1187 goto nla_put_failure;
1188
3713b4e3
JB		 1189 switch (*split_start) {
1190 case 0:
1191 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1192 dev->wiphy.retry_short) ||
1193 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1194 dev->wiphy.retry_long) ||
1195 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1196 dev->wiphy.frag_threshold) ||
1197 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1198 dev->wiphy.rts_threshold) ||
1199 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1200 dev->wiphy.coverage_class) ||
1201 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1202 dev->wiphy.max_scan_ssids) ||
1203 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1204 dev->wiphy.max_sched_scan_ssids) ||
1205 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1206 dev->wiphy.max_scan_ie_len) ||
1207 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1208 dev->wiphy.max_sched_scan_ie_len) ||
1209 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1210 dev->wiphy.max_match_sets))
9360ffd1 1211 goto nla_put_failure;
3713b4e3
JB		 1212
1213 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1214 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1215 goto nla_put_failure;
3713b4e3
JB		 1216 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1217 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1218 goto nla_put_failure;
1219 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1220 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1221 goto nla_put_failure;
1222 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1223 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1224 goto nla_put_failure;
1225 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1226 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1227 goto nla_put_failure;
1228 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1229 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1230 goto nla_put_failure;
8fdc621d 1231
3713b4e3
JB		 1232 (*split_start)++;
1233 if (split)
1234 break;
1235 case 1:
1236 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1237 sizeof(u32) * dev->wiphy.n_cipher_suites,
1238 dev->wiphy.cipher_suites))
1239 goto nla_put_failure;
4745fc09 1240
3713b4e3
JB		 1241 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1242 dev->wiphy.max_num_pmkids))
1243 goto nla_put_failure;
b23aa676 1244
3713b4e3
JB		 1245 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1246 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1247 goto nla_put_failure;
b23aa676 1248
3713b4e3
JB		 1249 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1250 dev->wiphy.available_antennas_tx) ||
1251 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1252 dev->wiphy.available_antennas_rx))
9360ffd1 1253 goto nla_put_failure;
b23aa676 1254
3713b4e3
JB		 1255 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1256 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1257 dev->wiphy.probe_resp_offload))
1258 goto nla_put_failure;
8fdc621d 1259
3713b4e3
JB		 1260 if ((dev->wiphy.available_antennas_tx ||
1261 dev->wiphy.available_antennas_rx) &&
1262 dev->ops->get_antenna) {
1263 u32 tx_ant = 0, rx_ant = 0;
1264 int res;
1265 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1266 if (!res) {
1267 if (nla_put_u32(msg,
1268 NL80211_ATTR_WIPHY_ANTENNA_TX,
1269 tx_ant) ||
1270 nla_put_u32(msg,
1271 NL80211_ATTR_WIPHY_ANTENNA_RX,
1272 rx_ant))
1273 goto nla_put_failure;
1274 }
1275 }
a293911d 1276
3713b4e3
JB		 1277 (*split_start)++;
1278 if (split)
1279 break;
1280 case 2:
1281 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1282 dev->wiphy.interface_modes))
1283 goto nla_put_failure;
1284 (*split_start)++;
1285 if (split)
1286 break;
1287 case 3:
1288 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1289 if (!nl_bands)
1290 goto nla_put_failure;
f7ca38df 1291
3713b4e3
JB		 1292 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1293 struct ieee80211_supported_band *sband;
2e161f78 1294
3713b4e3 1295 sband = dev->wiphy.bands[band];
2e161f78 1296
3713b4e3
JB		 1297 if (!sband)
1298 continue;
1299
1300 nl_band = nla_nest_start(msg, band);
1301 if (!nl_band)
2e161f78 1302 goto nla_put_failure;
3713b4e3
JB		 1303
1304 switch (*chan_start) {
1305 case 0:
1306 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1307 goto nla_put_failure;
3713b4e3
JB		 1308 (*chan_start)++;
1309 if (split)
1310 break;
1311 default:
1312 /* add frequencies */
1313 nl_freqs = nla_nest_start(
1314 msg, NL80211_BAND_ATTR_FREQS);
1315 if (!nl_freqs)
1316 goto nla_put_failure;
1317
1318 for (i = *chan_start - 1;
1319 i < sband->n_channels;
1320 i++) {
1321 nl_freq = nla_nest_start(msg, i);
1322 if (!nl_freq)
1323 goto nla_put_failure;
1324
1325 chan = &sband->channels[i];
1326
cdc89b97
JB		 1327 if (nl80211_msg_put_channel(msg, chan,
1328 split))
3713b4e3
JB		 1329 goto nla_put_failure;
1330
1331 nla_nest_end(msg, nl_freq);
1332 if (split)
1333 break;
1334 }
1335 if (i < sband->n_channels)
1336 *chan_start = i + 2;
1337 else
1338 *chan_start = 0;
1339 nla_nest_end(msg, nl_freqs);
1340 }
1341
1342 nla_nest_end(msg, nl_band);
1343
1344 if (split) {
1345 /* start again here */
1346 if (*chan_start)
1347 band--;
1348 break;
2e161f78 1349 }
2e161f78 1350 }
3713b4e3 1351 nla_nest_end(msg, nl_bands);
2e161f78 1352
3713b4e3
JB		 1353 if (band < IEEE80211_NUM_BANDS)
1354 *band_start = band + 1;
1355 else
1356 *band_start = 0;
74b70a4e 1357
3713b4e3
JB		 1358 /* if bands & channels are done, continue outside */
1359 if (*band_start == 0 && *chan_start == 0)
1360 (*split_start)++;
1361 if (split)
1362 break;
1363 case 4:
1364 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1365 if (!nl_cmds)
2e161f78
JB		 1366 goto nla_put_failure;
1367
3713b4e3
JB		 1368 i = 0;
1369#define CMD(op, n) \
1370 do { \
1371 if (dev->ops->op) { \
1372 i++; \
1373 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1374 goto nla_put_failure; \
1375 } \
1376 } while (0)
1377
1378 CMD(add_virtual_intf, NEW_INTERFACE);
1379 CMD(change_virtual_intf, SET_INTERFACE);
1380 CMD(add_key, NEW_KEY);
1381 CMD(start_ap, START_AP);
1382 CMD(add_station, NEW_STATION);
1383 CMD(add_mpath, NEW_MPATH);
1384 CMD(update_mesh_config, SET_MESH_CONFIG);
1385 CMD(change_bss, SET_BSS);
1386 CMD(auth, AUTHENTICATE);
1387 CMD(assoc, ASSOCIATE);
1388 CMD(deauth, DEAUTHENTICATE);
1389 CMD(disassoc, DISASSOCIATE);
1390 CMD(join_ibss, JOIN_IBSS);
1391 CMD(join_mesh, JOIN_MESH);
1392 CMD(set_pmksa, SET_PMKSA);
1393 CMD(del_pmksa, DEL_PMKSA);
1394 CMD(flush_pmksa, FLUSH_PMKSA);
1395 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1396 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1397 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1398 CMD(mgmt_tx, FRAME);
1399 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1400 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1401 i++;
1402 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1403 goto nla_put_failure;
2e161f78 1404 }
3713b4e3
JB		 1405 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1406 dev->ops->join_mesh) {
1407 i++;
1408 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1409 goto nla_put_failure;
1410 }
1411 CMD(set_wds_peer, SET_WDS_PEER);
1412 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1413 CMD(tdls_mgmt, TDLS_MGMT);
1414 CMD(tdls_oper, TDLS_OPER);
1415 }
1416 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1417 CMD(sched_scan_start, START_SCHED_SCAN);
1418 CMD(probe_client, PROBE_CLIENT);
1419 CMD(set_noack_map, SET_NOACK_MAP);
1420 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1421 i++;
1422 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1423 goto nla_put_failure;
1424 }
1425 CMD(start_p2p_device, START_P2P_DEVICE);
1426 CMD(set_mcast_rate, SET_MCAST_RATE);
5de17984
AS		 1427 if (split) {
1428 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1429 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1430 }
2e161f78 1431
3713b4e3
JB		 1432#ifdef CONFIG_NL80211_TESTMODE
1433 CMD(testmode_cmd, TESTMODE);
1434#endif
ff1b6e69 1435
3713b4e3 1436#undef CMD
ff1b6e69 1437
3713b4e3
JB		 1438 if (dev->ops->connect || dev->ops->auth) {
1439 i++;
1440 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1441 goto nla_put_failure;
ff1b6e69
JB		 1442 }
1443
3713b4e3
JB		 1444 if (dev->ops->disconnect || dev->ops->deauth) {
1445 i++;
1446 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1447 goto nla_put_failure;
1448 }
1449
1450 nla_nest_end(msg, nl_cmds);
1451 (*split_start)++;
1452 if (split)
1453 break;
1454 case 5:
1455 if (dev->ops->remain_on_channel &&
1456 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1457 nla_put_u32(msg,
1458 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1459 dev->wiphy.max_remain_on_channel_duration))
1460 goto nla_put_failure;
1461
1462 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1463 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1464 goto nla_put_failure;
1465
1466 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1467 goto nla_put_failure;
1468 (*split_start)++;
1469 if (split)
1470 break;
1471 case 6:
1472#ifdef CONFIG_PM
b56cf720 1473 if (nl80211_send_wowlan(msg, dev, split))
3713b4e3
JB		 1474 goto nla_put_failure;
1475 (*split_start)++;
1476 if (split)
1477 break;
1478#else
1479 (*split_start)++;
dfb89c56 1480#endif
3713b4e3
JB		 1481 case 7:
1482 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1483 dev->wiphy.software_iftypes))
1484 goto nla_put_failure;
ff1b6e69 1485
cdc89b97 1486 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
3713b4e3 1487 goto nla_put_failure;
7527a782 1488
3713b4e3
JB		 1489 (*split_start)++;
1490 if (split)
1491 break;
1492 case 8:
1493 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1494 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1495 dev->wiphy.ap_sme_capa))
1496 goto nla_put_failure;
7527a782 1497
fe1abafd
JB		 1498 features = dev->wiphy.features;
1499 /*
1500 * We can only add the per-channel limit information if the
1501 * dump is split, otherwise it makes it too big. Therefore
1502 * only advertise it in that case.
1503 */
1504 if (split)
1505 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1506 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1507 goto nla_put_failure;
562a7480 1508
3713b4e3
JB		 1509 if (dev->wiphy.ht_capa_mod_mask &&
1510 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1511 sizeof(*dev->wiphy.ht_capa_mod_mask),
1512 dev->wiphy.ht_capa_mod_mask))
1513 goto nla_put_failure;
1f074bd8 1514
3713b4e3
JB		 1515 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1516 dev->wiphy.max_acl_mac_addrs &&
1517 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1518 dev->wiphy.max_acl_mac_addrs))
1519 goto nla_put_failure;
7e7c8926 1520
3713b4e3
JB		 1521 /*
1522 * Any information below this point is only available to
1523 * applications that can deal with it being split. This
1524 * helps ensure that newly added capabilities don't break
1525 * older tools by overrunning their buffers.
1526 *
1527 * We still increment split_start so that in the split
1528 * case we'll continue with more data in the next round,
1529 * but break unconditionally so unsplit data stops here.
1530 */
1531 (*split_start)++;
1532 break;
1533 case 9:
fe1abafd
JB		 1534 if (dev->wiphy.extended_capabilities &&
1535 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1536 dev->wiphy.extended_capabilities_len,
1537 dev->wiphy.extended_capabilities) ||
1538 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1539 dev->wiphy.extended_capabilities_len,
1540 dev->wiphy.extended_capabilities_mask)))
1541 goto nla_put_failure;
a50df0c4 1542
ee2aca34
JB		 1543 if (dev->wiphy.vht_capa_mod_mask &&
1544 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1545 sizeof(*dev->wiphy.vht_capa_mod_mask),
1546 dev->wiphy.vht_capa_mod_mask))
1547 goto nla_put_failure;
1548
3713b4e3
JB		 1549 /* done */
1550 *split_start = 0;
1551 break;
1552 }
55682965
JB		 1553 return genlmsg_end(msg, hdr);
1554
1555 nla_put_failure:
bc3ed28c
TG		 1556 genlmsg_cancel(msg, hdr);
1557 return -EMSGSIZE;
55682965
JB		 1558}
1559
1560static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1561{
645e77de 1562 int idx = 0, ret;
55682965
JB		 1563 int start = cb->args[0];
1564 struct cfg80211_registered_device *dev;
3713b4e3
JB		 1565 s64 filter_wiphy = -1;
1566 bool split = false;
1567 struct nlattr **tb = nl80211_fam.attrbuf;
1568 int res;
55682965 1569
a1794390 1570 mutex_lock(&cfg80211_mutex);
3713b4e3
JB		 1571 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1572 tb, nl80211_fam.maxattr, nl80211_policy);
1573 if (res == 0) {
1574 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1575 if (tb[NL80211_ATTR_WIPHY])
1576 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1577 if (tb[NL80211_ATTR_WDEV])
1578 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1579 if (tb[NL80211_ATTR_IFINDEX]) {
1580 struct net_device *netdev;
1581 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1582
1583 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1584 if (!netdev) {
1585 mutex_unlock(&cfg80211_mutex);
1586 return -ENODEV;
1587 }
1588 if (netdev->ieee80211_ptr) {
1589 dev = wiphy_to_dev(
1590 netdev->ieee80211_ptr->wiphy);
1591 filter_wiphy = dev->wiphy_idx;
1592 }
1593 dev_put(netdev);
1594 }
1595 }
1596
79c97e97 1597 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1598 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1599 continue;
b4637271 1600 if (++idx <= start)
55682965 1601 continue;
3713b4e3
JB		 1602 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1603 continue;
1604 /* attempt to fit multiple wiphy data chunks into the skb */
1605 do {
1606 ret = nl80211_send_wiphy(dev, skb,
1607 NETLINK_CB(cb->skb).portid,
1608 cb->nlh->nlmsg_seq,
1609 NLM_F_MULTI,
1610 split, &cb->args[1],
1611 &cb->args[2],
1612 &cb->args[3]);
1613 if (ret < 0) {
1614 /*
1615 * If sending the wiphy data didn't fit (ENOBUFS
1616 * or EMSGSIZE returned), this SKB is still
1617 * empty (so it's not too big because another
1618 * wiphy dataset is already in the skb) and
1619 * we've not tried to adjust the dump allocation
1620 * yet ... then adjust the alloc size to be
1621 * bigger, and return 1 but with the empty skb.
1622 * This results in an empty message being RX'ed
1623 * in userspace, but that is ignored.
1624 *
1625 * We can then retry with the larger buffer.
1626 */
1627 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1628 !skb->len &&
1629 cb->min_dump_alloc < 4096) {
1630 cb->min_dump_alloc = 4096;
1631 mutex_unlock(&cfg80211_mutex);
1632 return 1;
1633 }
1634 idx--;
1635 break;
645e77de 1636 }
3713b4e3
JB		 1637 } while (cb->args[1] > 0);
1638 break;
55682965 1639 }
a1794390 1640 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1641
1642 cb->args[0] = idx;
1643
1644 return skb->len;
1645}
1646
1647static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1648{
1649 struct sk_buff *msg;
4c476991 1650 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1651
645e77de 1652 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1653 if (!msg)
4c476991 1654 return -ENOMEM;
55682965 1655
3713b4e3
JB		 1656 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1657 false, NULL, NULL, NULL) < 0) {
4c476991
JB		 1658 nlmsg_free(msg);
1659 return -ENOBUFS;
1660 }
55682965 1661
134e6375 1662 return genlmsg_reply(msg, info);
55682965
JB		 1663}
1664
31888487
JM		 1665static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1666 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1667 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1668 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1669 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1670 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1671};
1672
1673static int parse_txq_params(struct nlattr *tb[],
1674 struct ieee80211_txq_params *txq_params)
1675{
a3304b0a 1676 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1677 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1678 !tb[NL80211_TXQ_ATTR_AIFS])
1679 return -EINVAL;
1680
a3304b0a 1681 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1682 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1683 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1684 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1685 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1686
a3304b0a
JB		 1687 if (txq_params->ac >= NL80211_NUM_ACS)
1688 return -EINVAL;
1689
31888487
JM		 1690 return 0;
1691}
1692
f444de05
JB		 1693static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1694{
1695 /*
cc1d2806
JB		 1696 * You can only set the channel explicitly for WDS interfaces,
1697 * all others have their channel managed via their respective
1698 * "establish a connection" command (connect, join, ...)
1699 *
1700 * For AP/GO and mesh mode, the channel can be set with the
1701 * channel userspace API, but is only stored and passed to the
1702 * low-level driver when the AP starts or the mesh is joined.
1703 * This is for backward compatibility, userspace can also give
1704 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1705 *
1706 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1707 * whatever else is going on, so they have their own special
1708 * operation to set the monitor channel if possible.
f444de05
JB		 1709 */
1710 return !wdev ||
1711 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1712 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1713 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1714 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1715}
1716
683b6d3b
JB		 1717static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1718 struct genl_info *info,
1719 struct cfg80211_chan_def *chandef)
1720{
dbeca2ea 1721 u32 control_freq;
683b6d3b
JB		 1722
1723 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1724 return -EINVAL;
1725
1726 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1727
1728 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1729 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1730 chandef->center_freq1 = control_freq;
1731 chandef->center_freq2 = 0;
683b6d3b
JB		 1732
1733 /* Primary channel not allowed */
1734 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1735 return -EINVAL;
1736
3d9d1d66
JB		 1737 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1738 enum nl80211_channel_type chantype;
1739
1740 chantype = nla_get_u32(
1741 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1742
1743 switch (chantype) {
1744 case NL80211_CHAN_NO_HT:
1745 case NL80211_CHAN_HT20:
1746 case NL80211_CHAN_HT40PLUS:
1747 case NL80211_CHAN_HT40MINUS:
1748 cfg80211_chandef_create(chandef, chandef->chan,
1749 chantype);
1750 break;
1751 default:
1752 return -EINVAL;
1753 }
1754 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1755 chandef->width =
1756 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1757 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1758 chandef->center_freq1 =
1759 nla_get_u32(
1760 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1761 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1762 chandef->center_freq2 =
1763 nla_get_u32(
1764 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1765 }
1766
9f5e8f6e 1767 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1768 return -EINVAL;
1769
9f5e8f6e
JB		 1770 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1771 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1772 return -EINVAL;
1773
683b6d3b
JB		 1774 return 0;
1775}
1776
f444de05
JB		 1777static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1778 struct wireless_dev *wdev,
1779 struct genl_info *info)
1780{
683b6d3b 1781 struct cfg80211_chan_def chandef;
f444de05 1782 int result;
e8c9bd5b
JB		 1783 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1784
1785 if (wdev)
1786 iftype = wdev->iftype;
f444de05 1787
f444de05
JB		 1788 if (!nl80211_can_set_dev_channel(wdev))
1789 return -EOPNOTSUPP;
1790
683b6d3b
JB		 1791 result = nl80211_parse_chandef(rdev, info, &chandef);
1792 if (result)
1793 return result;
f444de05
JB		 1794
1795 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1796 switch (iftype) {
aa430da4
JB		 1797 case NL80211_IFTYPE_AP:
1798 case NL80211_IFTYPE_P2P_GO:
1799 if (wdev->beacon_interval) {
1800 result = -EBUSY;
1801 break;
1802 }
683b6d3b 1803 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1804 result = -EINVAL;
1805 break;
1806 }
683b6d3b 1807 wdev->preset_chandef = chandef;
aa430da4
JB		 1808 result = 0;
1809 break;
cc1d2806 1810 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1811 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1812 break;
e8c9bd5b 1813 case NL80211_IFTYPE_MONITOR:
683b6d3b 1814 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1815 break;
aa430da4 1816 default:
e8c9bd5b 1817 result = -EINVAL;
f444de05
JB		 1818 }
1819 mutex_unlock(&rdev->devlist_mtx);
1820
1821 return result;
1822}
1823
1824static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1825{
4c476991
JB		 1826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1827 struct net_device *netdev = info->user_ptr[1];
f444de05 1828
4c476991 1829 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1830}
1831
e8347eba
BJ		 1832static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1833{
43b19952
JB		 1834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1835 struct net_device *dev = info->user_ptr[1];
1836 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1837 const u8 *bssid;
e8347eba
BJ		 1838
1839 if (!info->attrs[NL80211_ATTR_MAC])
1840 return -EINVAL;
1841
43b19952
JB		 1842 if (netif_running(dev))
1843 return -EBUSY;
e8347eba 1844
43b19952
JB		 1845 if (!rdev->ops->set_wds_peer)
1846 return -EOPNOTSUPP;
e8347eba 1847
43b19952
JB		 1848 if (wdev->iftype != NL80211_IFTYPE_WDS)
1849 return -EOPNOTSUPP;
e8347eba
BJ		 1850
1851 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1852 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1853}
1854
1855
55682965
JB		 1856static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1857{
1858 struct cfg80211_registered_device *rdev;
f444de05
JB		 1859 struct net_device *netdev = NULL;
1860 struct wireless_dev *wdev;
a1e567c8 1861 int result = 0, rem_txq_params = 0;
31888487 1862 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1863 u32 changed;
1864 u8 retry_short = 0, retry_long = 0;
1865 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1866 u8 coverage_class = 0;
55682965 1867
f444de05
JB		 1868 /*
1869 * Try to find the wiphy and netdev. Normally this
1870 * function shouldn't need the netdev, but this is
1871 * done for backward compatibility -- previously
1872 * setting the channel was done per wiphy, but now
1873 * it is per netdev. Previous userland like hostapd
1874 * also passed a netdev to set_wiphy, so that it is
1875 * possible to let that go to the right netdev!
1876 */
4bbf4d56
JB		 1877 mutex_lock(&cfg80211_mutex);
1878
f444de05
JB		 1879 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1880 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1881
1882 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1883 if (netdev && netdev->ieee80211_ptr) {
1884 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1885 mutex_lock(&rdev->mtx);
1886 } else
1887 netdev = NULL;
4bbf4d56
JB		 1888 }
1889
f444de05 1890 if (!netdev) {
878d9ec7
JB		 1891 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1892 info->attrs);
f444de05
JB		 1893 if (IS_ERR(rdev)) {
1894 mutex_unlock(&cfg80211_mutex);
4c476991 1895 return PTR_ERR(rdev);
f444de05
JB		 1896 }
1897 wdev = NULL;
1898 netdev = NULL;
1899 result = 0;
1900
1901 mutex_lock(&rdev->mtx);
71fe96bf 1902 } else
f444de05 1903 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1904
1905 /*
1906 * end workaround code, by now the rdev is available
1907 * and locked, and wdev may or may not be NULL.
1908 */
4bbf4d56
JB		 1909
1910 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1911 result = cfg80211_dev_rename(
1912 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1913
1914 mutex_unlock(&cfg80211_mutex);
1915
1916 if (result)
1917 goto bad_res;
31888487
JM		 1918
1919 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1920 struct ieee80211_txq_params txq_params;
1921 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1922
1923 if (!rdev->ops->set_txq_params) {
1924 result = -EOPNOTSUPP;
1925 goto bad_res;
1926 }
1927
f70f01c2
EP		 1928 if (!netdev) {
1929 result = -EINVAL;
1930 goto bad_res;
1931 }
1932
133a3ff2
JB		 1933 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1934 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1935 result = -EINVAL;
1936 goto bad_res;
1937 }
1938
2b5f8b0b
JB		 1939 if (!netif_running(netdev)) {
1940 result = -ENETDOWN;
1941 goto bad_res;
1942 }
1943
31888487
JM		 1944 nla_for_each_nested(nl_txq_params,
1945 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1946 rem_txq_params) {
1947 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1948 nla_data(nl_txq_params),
1949 nla_len(nl_txq_params),
1950 txq_params_policy);
1951 result = parse_txq_params(tb, &txq_params);
1952 if (result)
1953 goto bad_res;
1954
e35e4d28
HG		 1955 result = rdev_set_txq_params(rdev, netdev,
1956 &txq_params);
31888487
JM		 1957 if (result)
1958 goto bad_res;
1959 }
1960 }
55682965 1961
72bdcf34 1962 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1963 result = __nl80211_set_channel(rdev,
1964 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1965 info);
72bdcf34
JM		 1966 if (result)
1967 goto bad_res;
1968 }
1969
98d2ff8b 1970 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1971 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1972 enum nl80211_tx_power_setting type;
1973 int idx, mbm = 0;
1974
c8442118
JB		 1975 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1976 txp_wdev = NULL;
1977
98d2ff8b 1978 if (!rdev->ops->set_tx_power) {
60ea385f 1979 result = -EOPNOTSUPP;
98d2ff8b
JO		 1980 goto bad_res;
1981 }
1982
1983 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1984 type = nla_get_u32(info->attrs[idx]);
1985
1986 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1987 (type != NL80211_TX_POWER_AUTOMATIC)) {
1988 result = -EINVAL;
1989 goto bad_res;
1990 }
1991
1992 if (type != NL80211_TX_POWER_AUTOMATIC) {
1993 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1994 mbm = nla_get_u32(info->attrs[idx]);
1995 }
1996
c8442118 1997 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1998 if (result)
1999 goto bad_res;
2000 }
2001
afe0cbf8
BR		 2002 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2003 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2004 u32 tx_ant, rx_ant;
7f531e03
BR		 2005 if ((!rdev->wiphy.available_antennas_tx &&
2006 !rdev->wiphy.available_antennas_rx) ||
2007 !rdev->ops->set_antenna) {
afe0cbf8
BR		 2008 result = -EOPNOTSUPP;
2009 goto bad_res;
2010 }
2011
2012 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2013 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2014
a7ffac95 2015 /* reject antenna configurations which don't match the
7f531e03
BR		 2016 * available antenna masks, except for the "all" mask */
2017 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2018 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2019 result = -EINVAL;
2020 goto bad_res;
2021 }
2022
7f531e03
BR		 2023 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2024 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2025
e35e4d28 2026 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2027 if (result)
2028 goto bad_res;
2029 }
2030
b9a5f8ca
JM		 2031 changed = 0;
2032
2033 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2034 retry_short = nla_get_u8(
2035 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2036 if (retry_short == 0) {
2037 result = -EINVAL;
2038 goto bad_res;
2039 }
2040 changed |= WIPHY_PARAM_RETRY_SHORT;
2041 }
2042
2043 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2044 retry_long = nla_get_u8(
2045 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2046 if (retry_long == 0) {
2047 result = -EINVAL;
2048 goto bad_res;
2049 }
2050 changed |= WIPHY_PARAM_RETRY_LONG;
2051 }
2052
2053 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2054 frag_threshold = nla_get_u32(
2055 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2056 if (frag_threshold < 256) {
2057 result = -EINVAL;
2058 goto bad_res;
2059 }
2060 if (frag_threshold != (u32) -1) {
2061 /*
2062 * Fragments (apart from the last one) are required to
2063 * have even length. Make the fragmentation code
2064 * simpler by stripping LSB should someone try to use
2065 * odd threshold value.
2066 */
2067 frag_threshold &= ~0x1;
2068 }
2069 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2070 }
2071
2072 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2073 rts_threshold = nla_get_u32(
2074 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2075 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2076 }
2077
81077e82
LT		 2078 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2079 coverage_class = nla_get_u8(
2080 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2081 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2082 }
2083
b9a5f8ca
JM		 2084 if (changed) {
2085 u8 old_retry_short, old_retry_long;
2086 u32 old_frag_threshold, old_rts_threshold;
81077e82 2087 u8 old_coverage_class;
b9a5f8ca
JM		 2088
2089 if (!rdev->ops->set_wiphy_params) {
2090 result = -EOPNOTSUPP;
2091 goto bad_res;
2092 }
2093
2094 old_retry_short = rdev->wiphy.retry_short;
2095 old_retry_long = rdev->wiphy.retry_long;
2096 old_frag_threshold = rdev->wiphy.frag_threshold;
2097 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2098 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2099
2100 if (changed & WIPHY_PARAM_RETRY_SHORT)
2101 rdev->wiphy.retry_short = retry_short;
2102 if (changed & WIPHY_PARAM_RETRY_LONG)
2103 rdev->wiphy.retry_long = retry_long;
2104 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2105 rdev->wiphy.frag_threshold = frag_threshold;
2106 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2107 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2108 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2109 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2110
e35e4d28 2111 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2112 if (result) {
2113 rdev->wiphy.retry_short = old_retry_short;
2114 rdev->wiphy.retry_long = old_retry_long;
2115 rdev->wiphy.frag_threshold = old_frag_threshold;
2116 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2117 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2118 }
2119 }
72bdcf34 2120
306d6112 2121 bad_res:
4bbf4d56 2122 mutex_unlock(&rdev->mtx);
f444de05
JB		 2123 if (netdev)
2124 dev_put(netdev);
55682965
JB		 2125 return result;
2126}
2127
71bbc994
JB		 2128static inline u64 wdev_id(struct wireless_dev *wdev)
2129{
2130 return (u64)wdev->identifier |
2131 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2132}
55682965 2133
683b6d3b
JB		 2134static int nl80211_send_chandef(struct sk_buff *msg,
2135 struct cfg80211_chan_def *chandef)
2136{
9f5e8f6e 2137 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2138
683b6d3b
JB		 2139 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2140 chandef->chan->center_freq))
2141 return -ENOBUFS;
3d9d1d66
JB		 2142 switch (chandef->width) {
2143 case NL80211_CHAN_WIDTH_20_NOHT:
2144 case NL80211_CHAN_WIDTH_20:
2145 case NL80211_CHAN_WIDTH_40:
2146 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2147 cfg80211_get_chandef_type(chandef)))
2148 return -ENOBUFS;
2149 break;
2150 default:
2151 break;
2152 }
2153 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2154 return -ENOBUFS;
2155 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2156 return -ENOBUFS;
2157 if (chandef->center_freq2 &&
2158 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2159 return -ENOBUFS;
2160 return 0;
2161}
2162
15e47304 2163static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2164 struct cfg80211_registered_device *rdev,
72fb2abc 2165 struct wireless_dev *wdev)
55682965 2166{
72fb2abc 2167 struct net_device *dev = wdev->netdev;
55682965
JB		 2168 void *hdr;
2169
15e47304 2170 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2171 if (!hdr)
2172 return -1;
2173
72fb2abc
JB		 2174 if (dev &&
2175 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2176 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2177 goto nla_put_failure;
2178
2179 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2180 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2181 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2182 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2183 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2184 rdev->devlist_generation ^
2185 (cfg80211_rdev_list_generation << 2)))
2186 goto nla_put_failure;
f5ea9120 2187
5b7ccaf3 2188 if (rdev->ops->get_channel) {
683b6d3b
JB		 2189 int ret;
2190 struct cfg80211_chan_def chandef;
2191
2192 ret = rdev_get_channel(rdev, wdev, &chandef);
2193 if (ret == 0) {
2194 if (nl80211_send_chandef(msg, &chandef))
2195 goto nla_put_failure;
2196 }
d91df0e3
PF		 2197 }
2198
b84e7a05
AQ		 2199 if (wdev->ssid_len) {
2200 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2201 goto nla_put_failure;
2202 }
2203
55682965
JB		 2204 return genlmsg_end(msg, hdr);
2205
2206 nla_put_failure:
bc3ed28c
TG		 2207 genlmsg_cancel(msg, hdr);
2208 return -EMSGSIZE;
55682965
JB		 2209}
2210
2211static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2212{
2213 int wp_idx = 0;
2214 int if_idx = 0;
2215 int wp_start = cb->args[0];
2216 int if_start = cb->args[1];
f5ea9120 2217 struct cfg80211_registered_device *rdev;
55682965
JB		 2218 struct wireless_dev *wdev;
2219
a1794390 2220 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 2221 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2222 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2223 continue;
bba95fef
JB		 2224 if (wp_idx < wp_start) {
2225 wp_idx++;
55682965 2226 continue;
bba95fef 2227 }
55682965
JB		 2228 if_idx = 0;
2229
f5ea9120 2230 mutex_lock(&rdev->devlist_mtx);
89a54e48 2231 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2232 if (if_idx < if_start) {
2233 if_idx++;
55682965 2234 continue;
bba95fef 2235 }
15e47304 2236 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2237 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2238 rdev, wdev) < 0) {
f5ea9120 2239 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 2240 goto out;
2241 }
2242 if_idx++;
55682965 2243 }
f5ea9120 2244 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 2245
2246 wp_idx++;
55682965 2247 }
bba95fef 2248 out:
a1794390 2249 mutex_unlock(&cfg80211_mutex);
55682965
JB		 2250
2251 cb->args[0] = wp_idx;
2252 cb->args[1] = if_idx;
2253
2254 return skb->len;
2255}
2256
2257static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2258{
2259 struct sk_buff *msg;
4c476991 2260 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2261 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2262
fd2120ca 2263 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2264 if (!msg)
4c476991 2265 return -ENOMEM;
55682965 2266
15e47304 2267 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2268 dev, wdev) < 0) {
4c476991
JB		 2269 nlmsg_free(msg);
2270 return -ENOBUFS;
2271 }
55682965 2272
134e6375 2273 return genlmsg_reply(msg, info);
55682965
JB		 2274}
2275
66f7ac50
MW		 2276static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2277 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2278 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2279 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2280 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2281 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2282};
2283
2284static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2285{
2286 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2287 int flag;
2288
2289 *mntrflags = 0;
2290
2291 if (!nla)
2292 return -EINVAL;
2293
2294 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2295 nla, mntr_flags_policy))
2296 return -EINVAL;
2297
2298 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2299 if (flags[flag])
2300 *mntrflags |= (1<<flag);
2301
2302 return 0;
2303}
2304
9bc383de 2305static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2306 struct net_device *netdev, u8 use_4addr,
2307 enum nl80211_iftype iftype)
9bc383de 2308{
ad4bb6f8 2309 if (!use_4addr) {
f350a0a8 2310 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2311 return -EBUSY;
9bc383de 2312 return 0;
ad4bb6f8 2313 }
9bc383de
JB		 2314
2315 switch (iftype) {
2316 case NL80211_IFTYPE_AP_VLAN:
2317 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2318 return 0;
2319 break;
2320 case NL80211_IFTYPE_STATION:
2321 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2322 return 0;
2323 break;
2324 default:
2325 break;
2326 }
2327
2328 return -EOPNOTSUPP;
2329}
2330
55682965
JB		 2331static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2332{
4c476991 2333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2334 struct vif_params params;
e36d56b6 2335 int err;
04a773ad 2336 enum nl80211_iftype otype, ntype;
4c476991 2337 struct net_device *dev = info->user_ptr[1];
92ffe055 2338 u32 _flags, *flags = NULL;
ac7f9cfa 2339 bool change = false;
55682965 2340
2ec600d6
LCC		 2341 memset(&params, 0, sizeof(params));
2342
04a773ad 2343 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2344
723b038d 2345 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2346 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2347 if (otype != ntype)
ac7f9cfa 2348 change = true;
4c476991
JB		 2349 if (ntype > NL80211_IFTYPE_MAX)
2350 return -EINVAL;
723b038d
JB		 2351 }
2352
92ffe055 2353 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2354 struct wireless_dev *wdev = dev->ieee80211_ptr;
2355
4c476991
JB		 2356 if (ntype != NL80211_IFTYPE_MESH_POINT)
2357 return -EINVAL;
29cbe68c
JB		 2358 if (netif_running(dev))
2359 return -EBUSY;
2360
2361 wdev_lock(wdev);
2362 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2363 IEEE80211_MAX_MESH_ID_LEN);
2364 wdev->mesh_id_up_len =
2365 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2366 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2367 wdev->mesh_id_up_len);
2368 wdev_unlock(wdev);
2ec600d6
LCC		 2369 }
2370
8b787643
FF		 2371 if (info->attrs[NL80211_ATTR_4ADDR]) {
2372 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2373 change = true;
ad4bb6f8 2374 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2375 if (err)
4c476991 2376 return err;
8b787643
FF		 2377 } else {
2378 params.use_4addr = -1;
2379 }
2380
92ffe055 2381 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2382 if (ntype != NL80211_IFTYPE_MONITOR)
2383 return -EINVAL;
92ffe055
JB		 2384 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2385 &_flags);
ac7f9cfa 2386 if (err)
4c476991 2387 return err;
ac7f9cfa
JB		 2388
2389 flags = &_flags;
2390 change = true;
92ffe055 2391 }
3b85875a 2392
ac7f9cfa 2393 if (change)
3d54d255 2394 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2395 else
2396 err = 0;
60719ffd 2397
9bc383de
JB		 2398 if (!err && params.use_4addr != -1)
2399 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2400
55682965
JB		 2401 return err;
2402}
2403
2404static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2405{
4c476991 2406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2407 struct vif_params params;
84efbb84 2408 struct wireless_dev *wdev;
1c90f9d4 2409 struct sk_buff *msg;
55682965
JB		 2410 int err;
2411 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2412 u32 flags;
55682965 2413
2ec600d6
LCC		 2414 memset(&params, 0, sizeof(params));
2415
55682965
JB		 2416 if (!info->attrs[NL80211_ATTR_IFNAME])
2417 return -EINVAL;
2418
2419 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2420 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2421 if (type > NL80211_IFTYPE_MAX)
2422 return -EINVAL;
2423 }
2424
79c97e97 2425 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2426 !(rdev->wiphy.interface_modes & (1 << type)))
2427 return -EOPNOTSUPP;
55682965 2428
1c18f145
AS		 2429 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2430 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2431 ETH_ALEN);
2432 if (!is_valid_ether_addr(params.macaddr))
2433 return -EADDRNOTAVAIL;
2434 }
2435
9bc383de 2436 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2437 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2438 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2439 if (err)
4c476991 2440 return err;
9bc383de 2441 }
8b787643 2442
1c90f9d4
JB		 2443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2444 if (!msg)
2445 return -ENOMEM;
2446
66f7ac50
MW		 2447 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2448 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2449 &flags);
e35e4d28
HG		 2450 wdev = rdev_add_virtual_intf(rdev,
2451 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2452 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2453 if (IS_ERR(wdev)) {
2454 nlmsg_free(msg);
84efbb84 2455 return PTR_ERR(wdev);
1c90f9d4 2456 }
2ec600d6 2457
98104fde
JB		 2458 switch (type) {
2459 case NL80211_IFTYPE_MESH_POINT:
2460 if (!info->attrs[NL80211_ATTR_MESH_ID])
2461 break;
29cbe68c
JB		 2462 wdev_lock(wdev);
2463 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2464 IEEE80211_MAX_MESH_ID_LEN);
2465 wdev->mesh_id_up_len =
2466 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2467 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2468 wdev->mesh_id_up_len);
2469 wdev_unlock(wdev);
98104fde
JB		 2470 break;
2471 case NL80211_IFTYPE_P2P_DEVICE:
2472 /*
2473 * P2P Device doesn't have a netdev, so doesn't go
2474 * through the netdev notifier and must be added here
2475 */
2476 mutex_init(&wdev->mtx);
2477 INIT_LIST_HEAD(&wdev->event_list);
2478 spin_lock_init(&wdev->event_lock);
2479 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2480 spin_lock_init(&wdev->mgmt_registrations_lock);
2481
2482 mutex_lock(&rdev->devlist_mtx);
2483 wdev->identifier = ++rdev->wdev_id;
2484 list_add_rcu(&wdev->list, &rdev->wdev_list);
2485 rdev->devlist_generation++;
2486 mutex_unlock(&rdev->devlist_mtx);
2487 break;
2488 default:
2489 break;
29cbe68c
JB		 2490 }
2491
15e47304 2492 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2493 rdev, wdev) < 0) {
2494 nlmsg_free(msg);
2495 return -ENOBUFS;
2496 }
2497
2498 return genlmsg_reply(msg, info);
55682965
JB		 2499}
2500
2501static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2502{
4c476991 2503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2504 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2505
4c476991
JB		 2506 if (!rdev->ops->del_virtual_intf)
2507 return -EOPNOTSUPP;
55682965 2508
84efbb84
JB		 2509 /*
2510 * If we remove a wireless device without a netdev then clear
2511 * user_ptr[1] so that nl80211_post_doit won't dereference it
2512 * to check if it needs to do dev_put(). Otherwise it crashes
2513 * since the wdev has been freed, unlike with a netdev where
2514 * we need the dev_put() for the netdev to really be freed.
2515 */
2516 if (!wdev->netdev)
2517 info->user_ptr[1] = NULL;
2518
e35e4d28 2519 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2520}
2521
1d9d9213
SW		 2522static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2523{
2524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2525 struct net_device *dev = info->user_ptr[1];
2526 u16 noack_map;
2527
2528 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2529 return -EINVAL;
2530
2531 if (!rdev->ops->set_noack_map)
2532 return -EOPNOTSUPP;
2533
2534 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2535
e35e4d28 2536 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2537}
2538
41ade00f
JB		 2539struct get_key_cookie {
2540 struct sk_buff *msg;
2541 int error;
b9454e83 2542 int idx;
41ade00f
JB		 2543};
2544
2545static void get_key_callback(void *c, struct key_params *params)
2546{
b9454e83 2547 struct nlattr *key;
41ade00f
JB		 2548 struct get_key_cookie *cookie = c;
2549
9360ffd1
DM		 2550 if ((params->key &&
2551 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2552 params->key_len, params->key)) ||
2553 (params->seq &&
2554 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2555 params->seq_len, params->seq)) ||
2556 (params->cipher &&
2557 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2558 params->cipher)))
2559 goto nla_put_failure;
41ade00f 2560
b9454e83
JB		 2561 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2562 if (!key)
2563 goto nla_put_failure;
2564
9360ffd1
DM		 2565 if ((params->key &&
2566 nla_put(cookie->msg, NL80211_KEY_DATA,
2567 params->key_len, params->key)) ||
2568 (params->seq &&
2569 nla_put(cookie->msg, NL80211_KEY_SEQ,
2570 params->seq_len, params->seq)) ||
2571 (params->cipher &&
2572 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2573 params->cipher)))
2574 goto nla_put_failure;
b9454e83 2575
9360ffd1
DM		 2576 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2577 goto nla_put_failure;
b9454e83
JB		 2578
2579 nla_nest_end(cookie->msg, key);
2580
41ade00f
JB		 2581 return;
2582 nla_put_failure:
2583 cookie->error = 1;
2584}
2585
2586static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2587{
4c476991 2588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2589 int err;
4c476991 2590 struct net_device *dev = info->user_ptr[1];
41ade00f 2591 u8 key_idx = 0;
e31b8213
JB		 2592 const u8 *mac_addr = NULL;
2593 bool pairwise;
41ade00f
JB		 2594 struct get_key_cookie cookie = {
2595 .error = 0,
2596 };
2597 void *hdr;
2598 struct sk_buff *msg;
2599
2600 if (info->attrs[NL80211_ATTR_KEY_IDX])
2601 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2602
3cfcf6ac 2603 if (key_idx > 5)
41ade00f
JB		 2604 return -EINVAL;
2605
2606 if (info->attrs[NL80211_ATTR_MAC])
2607 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2608
e31b8213
JB		 2609 pairwise = !!mac_addr;
2610 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2611 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2612 if (kt >= NUM_NL80211_KEYTYPES)
2613 return -EINVAL;
2614 if (kt != NL80211_KEYTYPE_GROUP &&
2615 kt != NL80211_KEYTYPE_PAIRWISE)
2616 return -EINVAL;
2617 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2618 }
2619
4c476991
JB		 2620 if (!rdev->ops->get_key)
2621 return -EOPNOTSUPP;
41ade00f 2622
fd2120ca 2623 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2624 if (!msg)
2625 return -ENOMEM;
41ade00f 2626
15e47304 2627 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2628 NL80211_CMD_NEW_KEY);
4c476991
JB		 2629 if (IS_ERR(hdr))
2630 return PTR_ERR(hdr);
41ade00f
JB		 2631
2632 cookie.msg = msg;
b9454e83 2633 cookie.idx = key_idx;
41ade00f 2634
9360ffd1
DM		 2635 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2636 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2637 goto nla_put_failure;
2638 if (mac_addr &&
2639 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2640 goto nla_put_failure;
41ade00f 2641
e31b8213
JB		 2642 if (pairwise && mac_addr &&
2643 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2644 return -ENOENT;
2645
e35e4d28
HG		 2646 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2647 get_key_callback);
41ade00f
JB		 2648
2649 if (err)
6c95e2a2 2650 goto free_msg;
41ade00f
JB		 2651
2652 if (cookie.error)
2653 goto nla_put_failure;
2654
2655 genlmsg_end(msg, hdr);
4c476991 2656 return genlmsg_reply(msg, info);
41ade00f
JB		 2657
2658 nla_put_failure:
2659 err = -ENOBUFS;
6c95e2a2 2660 free_msg:
41ade00f 2661 nlmsg_free(msg);
41ade00f
JB		 2662 return err;
2663}
2664
2665static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2666{
4c476991 2667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2668 struct key_parse key;
41ade00f 2669 int err;
4c476991 2670 struct net_device *dev = info->user_ptr[1];
41ade00f 2671
b9454e83
JB		 2672 err = nl80211_parse_key(info, &key);
2673 if (err)
2674 return err;
41ade00f 2675
b9454e83 2676 if (key.idx < 0)
41ade00f
JB		 2677 return -EINVAL;
2678
b9454e83
JB		 2679 /* only support setting default key */
2680 if (!key.def && !key.defmgmt)
41ade00f
JB		 2681 return -EINVAL;
2682
dbd2fd65 2683 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2684
dbd2fd65
JB		 2685 if (key.def) {
2686 if (!rdev->ops->set_default_key) {
2687 err = -EOPNOTSUPP;
2688 goto out;
2689 }
41ade00f 2690
dbd2fd65
JB		 2691 err = nl80211_key_allowed(dev->ieee80211_ptr);
2692 if (err)
2693 goto out;
2694
e35e4d28 2695 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2696 key.def_uni, key.def_multi);
2697
2698 if (err)
2699 goto out;
fffd0934 2700
3d23e349 2701#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2702 dev->ieee80211_ptr->wext.default_key = key.idx;
2703#endif
2704 } else {
2705 if (key.def_uni || !key.def_multi) {
2706 err = -EINVAL;
2707 goto out;
2708 }
2709
2710 if (!rdev->ops->set_default_mgmt_key) {
2711 err = -EOPNOTSUPP;
2712 goto out;
2713 }
2714
2715 err = nl80211_key_allowed(dev->ieee80211_ptr);
2716 if (err)
2717 goto out;
2718
e35e4d28 2719 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2720 if (err)
2721 goto out;
2722
2723#ifdef CONFIG_CFG80211_WEXT
2724 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2725#endif
dbd2fd65
JB		 2726 }
2727
2728 out:
fffd0934 2729 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2730
41ade00f
JB		 2731 return err;
2732}
2733
2734static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2735{
4c476991 2736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2737 int err;
4c476991 2738 struct net_device *dev = info->user_ptr[1];
b9454e83 2739 struct key_parse key;
e31b8213 2740 const u8 *mac_addr = NULL;
41ade00f 2741
b9454e83
JB		 2742 err = nl80211_parse_key(info, &key);
2743 if (err)
2744 return err;
41ade00f 2745
b9454e83 2746 if (!key.p.key)
41ade00f
JB		 2747 return -EINVAL;
2748
41ade00f
JB		 2749 if (info->attrs[NL80211_ATTR_MAC])
2750 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2751
e31b8213
JB		 2752 if (key.type == -1) {
2753 if (mac_addr)
2754 key.type = NL80211_KEYTYPE_PAIRWISE;
2755 else
2756 key.type = NL80211_KEYTYPE_GROUP;
2757 }
2758
2759 /* for now */
2760 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2761 key.type != NL80211_KEYTYPE_GROUP)
2762 return -EINVAL;
2763
4c476991
JB		 2764 if (!rdev->ops->add_key)
2765 return -EOPNOTSUPP;
25e47c18 2766
e31b8213
JB		 2767 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2768 key.type == NL80211_KEYTYPE_PAIRWISE,
2769 mac_addr))
4c476991 2770 return -EINVAL;
41ade00f 2771
fffd0934
JB		 2772 wdev_lock(dev->ieee80211_ptr);
2773 err = nl80211_key_allowed(dev->ieee80211_ptr);
2774 if (!err)
e35e4d28
HG		 2775 err = rdev_add_key(rdev, dev, key.idx,
2776 key.type == NL80211_KEYTYPE_PAIRWISE,
2777 mac_addr, &key.p);
fffd0934 2778 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2779
41ade00f
JB		 2780 return err;
2781}
2782
2783static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2784{
4c476991 2785 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2786 int err;
4c476991 2787 struct net_device *dev = info->user_ptr[1];
41ade00f 2788 u8 *mac_addr = NULL;
b9454e83 2789 struct key_parse key;
41ade00f 2790
b9454e83
JB		 2791 err = nl80211_parse_key(info, &key);
2792 if (err)
2793 return err;
41ade00f
JB		 2794
2795 if (info->attrs[NL80211_ATTR_MAC])
2796 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2797
e31b8213
JB		 2798 if (key.type == -1) {
2799 if (mac_addr)
2800 key.type = NL80211_KEYTYPE_PAIRWISE;
2801 else
2802 key.type = NL80211_KEYTYPE_GROUP;
2803 }
2804
2805 /* for now */
2806 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2807 key.type != NL80211_KEYTYPE_GROUP)
2808 return -EINVAL;
2809
4c476991
JB		 2810 if (!rdev->ops->del_key)
2811 return -EOPNOTSUPP;
41ade00f 2812
fffd0934
JB		 2813 wdev_lock(dev->ieee80211_ptr);
2814 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2815
2816 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2817 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2818 err = -ENOENT;
2819
fffd0934 2820 if (!err)
e35e4d28
HG		 2821 err = rdev_del_key(rdev, dev, key.idx,
2822 key.type == NL80211_KEYTYPE_PAIRWISE,
2823 mac_addr);
41ade00f 2824
3d23e349 2825#ifdef CONFIG_CFG80211_WEXT
08645126 2826 if (!err) {
b9454e83 2827 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2828 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2829 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2830 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2831 }
2832#endif
fffd0934 2833 wdev_unlock(dev->ieee80211_ptr);
08645126 2834
41ade00f
JB		 2835 return err;
2836}
2837
77765eaf
VT		 2838/* This function returns an error or the number of nested attributes */
2839static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2840{
2841 struct nlattr *attr;
2842 int n_entries = 0, tmp;
2843
2844 nla_for_each_nested(attr, nl_attr, tmp) {
2845 if (nla_len(attr) != ETH_ALEN)
2846 return -EINVAL;
2847
2848 n_entries++;
2849 }
2850
2851 return n_entries;
2852}
2853
2854/*
2855 * This function parses ACL information and allocates memory for ACL data.
2856 * On successful return, the calling function is responsible to free the
2857 * ACL buffer returned by this function.
2858 */
2859static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2860 struct genl_info *info)
2861{
2862 enum nl80211_acl_policy acl_policy;
2863 struct nlattr *attr;
2864 struct cfg80211_acl_data *acl;
2865 int i = 0, n_entries, tmp;
2866
2867 if (!wiphy->max_acl_mac_addrs)
2868 return ERR_PTR(-EOPNOTSUPP);
2869
2870 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2871 return ERR_PTR(-EINVAL);
2872
2873 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2874 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2875 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2876 return ERR_PTR(-EINVAL);
2877
2878 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2879 return ERR_PTR(-EINVAL);
2880
2881 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2882 if (n_entries < 0)
2883 return ERR_PTR(n_entries);
2884
2885 if (n_entries > wiphy->max_acl_mac_addrs)
2886 return ERR_PTR(-ENOTSUPP);
2887
2888 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2889 GFP_KERNEL);
2890 if (!acl)
2891 return ERR_PTR(-ENOMEM);
2892
2893 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2894 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2895 i++;
2896 }
2897
2898 acl->n_acl_entries = n_entries;
2899 acl->acl_policy = acl_policy;
2900
2901 return acl;
2902}
2903
2904static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2905{
2906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2907 struct net_device *dev = info->user_ptr[1];
2908 struct cfg80211_acl_data *acl;
2909 int err;
2910
2911 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2912 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2913 return -EOPNOTSUPP;
2914
2915 if (!dev->ieee80211_ptr->beacon_interval)
2916 return -EINVAL;
2917
2918 acl = parse_acl_data(&rdev->wiphy, info);
2919 if (IS_ERR(acl))
2920 return PTR_ERR(acl);
2921
2922 err = rdev_set_mac_acl(rdev, dev, acl);
2923
2924 kfree(acl);
2925
2926 return err;
2927}
2928
8860020e
JB		 2929static int nl80211_parse_beacon(struct genl_info *info,
2930 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2931{
8860020e 2932 bool haveinfo = false;
ed1b6cc7 2933
9946ecfb
JM		 2934 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2935 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2936 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2937 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2938 return -EINVAL;
2939
8860020e 2940 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2941
ed1b6cc7 2942 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2943 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2944 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2945 if (!bcn->head_len)
2946 return -EINVAL;
2947 haveinfo = true;
ed1b6cc7
JB		 2948 }
2949
2950 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2951 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2952 bcn->tail_len =
ed1b6cc7 2953 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2954 haveinfo = true;
ed1b6cc7
JB		 2955 }
2956
4c476991
JB		 2957 if (!haveinfo)
2958 return -EINVAL;
3b85875a 2959
9946ecfb 2960 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2961 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2962 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2963 }
2964
2965 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2966 bcn->proberesp_ies =
9946ecfb 2967 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2968 bcn->proberesp_ies_len =
9946ecfb
JM		 2969 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2970 }
2971
2972 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2973 bcn->assocresp_ies =
9946ecfb 2974 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2975 bcn->assocresp_ies_len =
9946ecfb
JM		 2976 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2977 }
2978
00f740e1 2979 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2980 bcn->probe_resp =
00f740e1 2981 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2982 bcn->probe_resp_len =
00f740e1
AN		 2983 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2984 }
2985
8860020e
JB		 2986 return 0;
2987}
2988
46c1dd0c
FF		 2989static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2990 struct cfg80211_ap_settings *params)
2991{
2992 struct wireless_dev *wdev;
2993 bool ret = false;
2994
2995 mutex_lock(&rdev->devlist_mtx);
2996
89a54e48 2997 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2998 if (wdev->iftype != NL80211_IFTYPE_AP &&
2999 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3000 continue;
3001
683b6d3b 3002 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3003 continue;
3004
683b6d3b 3005 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3006 ret = true;
3007 break;
3008 }
3009
3010 mutex_unlock(&rdev->devlist_mtx);
3011
3012 return ret;
3013}
3014
e39e5b5e
JM		 3015static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3016 enum nl80211_auth_type auth_type,
3017 enum nl80211_commands cmd)
3018{
3019 if (auth_type > NL80211_AUTHTYPE_MAX)
3020 return false;
3021
3022 switch (cmd) {
3023 case NL80211_CMD_AUTHENTICATE:
3024 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3025 auth_type == NL80211_AUTHTYPE_SAE)
3026 return false;
3027 return true;
3028 case NL80211_CMD_CONNECT:
3029 case NL80211_CMD_START_AP:
3030 /* SAE not supported yet */
3031 if (auth_type == NL80211_AUTHTYPE_SAE)
3032 return false;
3033 return true;
3034 default:
3035 return false;
3036 }
3037}
3038
8860020e
JB		 3039static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3040{
3041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3042 struct net_device *dev = info->user_ptr[1];
3043 struct wireless_dev *wdev = dev->ieee80211_ptr;
3044 struct cfg80211_ap_settings params;
3045 int err;
04f39047 3046 u8 radar_detect_width = 0;
8860020e
JB		 3047
3048 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3049 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3050 return -EOPNOTSUPP;
3051
3052 if (!rdev->ops->start_ap)
3053 return -EOPNOTSUPP;
3054
3055 if (wdev->beacon_interval)
3056 return -EALREADY;
3057
3058 memset(&params, 0, sizeof(params));
3059
3060 /* these are required for START_AP */
3061 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3062 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3063 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3064 return -EINVAL;
3065
3066 err = nl80211_parse_beacon(info, &params.beacon);
3067 if (err)
3068 return err;
3069
3070 params.beacon_interval =
3071 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3072 params.dtim_period =
3073 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3074
3075 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3076 if (err)
3077 return err;
3078
3079 /*
3080 * In theory, some of these attributes should be required here
3081 * but since they were not used when the command was originally
3082 * added, keep them optional for old user space programs to let
3083 * them continue to work with drivers that do not need the
3084 * additional information -- drivers must check!
3085 */
3086 if (info->attrs[NL80211_ATTR_SSID]) {
3087 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3088 params.ssid_len =
3089 nla_len(info->attrs[NL80211_ATTR_SSID]);
3090 if (params.ssid_len == 0 ||
3091 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3092 return -EINVAL;
3093 }
3094
3095 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3096 params.hidden_ssid = nla_get_u32(
3097 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3098 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3099 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3100 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3101 return -EINVAL;
3102 }
3103
3104 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3105
3106 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3107 params.auth_type = nla_get_u32(
3108 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3109 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3110 NL80211_CMD_START_AP))
8860020e
JB		 3111 return -EINVAL;
3112 } else
3113 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3114
3115 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3116 NL80211_MAX_NR_CIPHER_SUITES);
3117 if (err)
3118 return err;
3119
1b658f11
VT		 3120 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3121 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3122 return -EOPNOTSUPP;
3123 params.inactivity_timeout = nla_get_u16(
3124 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3125 }
3126
53cabad7
JB		 3127 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3128 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3129 return -EINVAL;
3130 params.p2p_ctwindow =
3131 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3132 if (params.p2p_ctwindow > 127)
3133 return -EINVAL;
3134 if (params.p2p_ctwindow != 0 &&
3135 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3136 return -EINVAL;
3137 }
3138
3139 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3140 u8 tmp;
3141
3142 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3143 return -EINVAL;
3144 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3145 if (tmp > 1)
3146 return -EINVAL;
3147 params.p2p_opp_ps = tmp;
3148 if (params.p2p_opp_ps != 0 &&
3149 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3150 return -EINVAL;
3151 }
3152
aa430da4 3153 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3154 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3155 if (err)
3156 return err;
3157 } else if (wdev->preset_chandef.chan) {
3158 params.chandef = wdev->preset_chandef;
46c1dd0c 3159 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3160 return -EINVAL;
3161
683b6d3b 3162 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3163 return -EINVAL;
3164
04f39047
SW		 3165 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3166 if (err < 0)
3167 return err;
3168 if (err) {
3169 radar_detect_width = BIT(params.chandef.width);
3170 params.radar_required = true;
3171 }
3172
e4e32459 3173 mutex_lock(&rdev->devlist_mtx);
04f39047
SW		 3174 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3175 params.chandef.chan,
3176 CHAN_MODE_SHARED,
3177 radar_detect_width);
e4e32459
MK		 3178 mutex_unlock(&rdev->devlist_mtx);
3179
3180 if (err)
3181 return err;
3182
77765eaf
VT		 3183 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3184 params.acl = parse_acl_data(&rdev->wiphy, info);
3185 if (IS_ERR(params.acl))
3186 return PTR_ERR(params.acl);
3187 }
3188
e35e4d28 3189 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3190 if (!err) {
683b6d3b 3191 wdev->preset_chandef = params.chandef;
8860020e 3192 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3193 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3194 wdev->ssid_len = params.ssid_len;
3195 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3196 }
77765eaf
VT		 3197
3198 kfree(params.acl);
3199
56d1893d 3200 return err;
ed1b6cc7
JB		 3201}
3202
8860020e
JB		 3203static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3204{
3205 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3206 struct net_device *dev = info->user_ptr[1];
3207 struct wireless_dev *wdev = dev->ieee80211_ptr;
3208 struct cfg80211_beacon_data params;
3209 int err;
3210
3211 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3212 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3213 return -EOPNOTSUPP;
3214
3215 if (!rdev->ops->change_beacon)
3216 return -EOPNOTSUPP;
3217
3218 if (!wdev->beacon_interval)
3219 return -EINVAL;
3220
3221 err = nl80211_parse_beacon(info, &params);
3222 if (err)
3223 return err;
3224
e35e4d28 3225 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3226}
3227
3228static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3229{
4c476991
JB		 3230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3231 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3232
60771780 3233 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3234}
3235
5727ef1b
JB		 3236static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3237 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3238 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3239 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3240 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3241 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3242 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3243};
3244
eccb8e8f 3245static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3246 enum nl80211_iftype iftype,
eccb8e8f 3247 struct station_parameters *params)
5727ef1b
JB		 3248{
3249 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3250 struct nlattr *nla;
5727ef1b
JB		 3251 int flag;
3252
eccb8e8f
JB		 3253 /*
3254 * Try parsing the new attribute first so userspace
3255 * can specify both for older kernels.
3256 */
3257 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3258 if (nla) {
3259 struct nl80211_sta_flag_update *sta_flags;
3260
3261 sta_flags = nla_data(nla);
3262 params->sta_flags_mask = sta_flags->mask;
3263 params->sta_flags_set = sta_flags->set;
77ee7c89 3264 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3265 if ((params->sta_flags_mask |
3266 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3267 return -EINVAL;
3268 return 0;
3269 }
3270
3271 /* if present, parse the old attribute */
5727ef1b 3272
eccb8e8f 3273 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3274 if (!nla)
3275 return 0;
3276
3277 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3278 nla, sta_flags_policy))
3279 return -EINVAL;
3280
bdd3ae3d
JB		 3281 /*
3282 * Only allow certain flags for interface types so that
3283 * other attributes are silently ignored. Remember that
3284 * this is backward compatibility code with old userspace
3285 * and shouldn't be hit in other cases anyway.
3286 */
3287 switch (iftype) {
3288 case NL80211_IFTYPE_AP:
3289 case NL80211_IFTYPE_AP_VLAN:
3290 case NL80211_IFTYPE_P2P_GO:
3291 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3292 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3293 BIT(NL80211_STA_FLAG_WME) |
3294 BIT(NL80211_STA_FLAG_MFP);
3295 break;
3296 case NL80211_IFTYPE_P2P_CLIENT:
3297 case NL80211_IFTYPE_STATION:
3298 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3299 BIT(NL80211_STA_FLAG_TDLS_PEER);
3300 break;
3301 case NL80211_IFTYPE_MESH_POINT:
3302 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3303 BIT(NL80211_STA_FLAG_MFP) |
3304 BIT(NL80211_STA_FLAG_AUTHORIZED);
3305 default:
3306 return -EINVAL;
3307 }
5727ef1b 3308
3383b5a6
JB		 3309 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3310 if (flags[flag]) {
eccb8e8f 3311 params->sta_flags_set |= (1<<flag);
5727ef1b 3312
3383b5a6
JB		 3313 /* no longer support new API additions in old API */
3314 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3315 return -EINVAL;
3316 }
3317 }
3318
5727ef1b
JB		 3319 return 0;
3320}
3321
c8dcfd8a
FF		 3322static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3323 int attr)
3324{
3325 struct nlattr *rate;
8eb41c8d
VK		 3326 u32 bitrate;
3327 u16 bitrate_compat;
c8dcfd8a
FF		 3328
3329 rate = nla_nest_start(msg, attr);
3330 if (!rate)
db9c64cf 3331 return false;
c8dcfd8a
FF		 3332
3333 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3334 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3335 /* report 16-bit bitrate only if we can */
3336 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3337 if (bitrate > 0 &&
3338 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3339 return false;
3340 if (bitrate_compat > 0 &&
3341 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3342 return false;
3343
3344 if (info->flags & RATE_INFO_FLAGS_MCS) {
3345 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3346 return false;
3347 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3348 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3349 return false;
3350 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3351 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3352 return false;
3353 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3354 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3355 return false;
3356 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3357 return false;
3358 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3359 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3360 return false;
3361 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3362 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3363 return false;
3364 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3365 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3366 return false;
3367 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3368 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3369 return false;
3370 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3371 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3372 return false;
3373 }
c8dcfd8a
FF		 3374
3375 nla_nest_end(msg, rate);
3376 return true;
c8dcfd8a
FF		 3377}
3378
15e47304 3379static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3380 int flags,
3381 struct cfg80211_registered_device *rdev,
3382 struct net_device *dev,
98b62183 3383 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3384{
3385 void *hdr;
f4263c98 3386 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3387
15e47304 3388 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3389 if (!hdr)
3390 return -1;
3391
9360ffd1
DM		 3392 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3393 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3394 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3395 goto nla_put_failure;
f5ea9120 3396
2ec600d6
LCC		 3397 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3398 if (!sinfoattr)
fd5b74dc 3399 goto nla_put_failure;
9360ffd1
DM		 3400 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3401 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3402 sinfo->connected_time))
3403 goto nla_put_failure;
3404 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3405 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3406 sinfo->inactive_time))
3407 goto nla_put_failure;
42745e03
VK		 3408 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3409 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3410 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3411 (u32)sinfo->rx_bytes))
9360ffd1 3412 goto nla_put_failure;
42745e03
VK		 3413 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3414 NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3415 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3416 (u32)sinfo->tx_bytes))
3417 goto nla_put_failure;
3418 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3419 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3420 sinfo->rx_bytes))
3421 goto nla_put_failure;
3422 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3423 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3424 sinfo->tx_bytes))
3425 goto nla_put_failure;
3426 if ((sinfo->filled & STATION_INFO_LLID) &&
3427 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3428 goto nla_put_failure;
3429 if ((sinfo->filled & STATION_INFO_PLID) &&
3430 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3431 goto nla_put_failure;
3432 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3433 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3434 sinfo->plink_state))
3435 goto nla_put_failure;
66266b3a
JL		 3436 switch (rdev->wiphy.signal_type) {
3437 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3438 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3439 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3440 sinfo->signal))
3441 goto nla_put_failure;
3442 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3443 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3444 sinfo->signal_avg))
3445 goto nla_put_failure;
66266b3a
JL		 3446 break;
3447 default:
3448 break;
3449 }
420e7fab 3450 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3451 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3452 NL80211_STA_INFO_TX_BITRATE))
3453 goto nla_put_failure;
3454 }
3455 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3456 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3457 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3458 goto nla_put_failure;
420e7fab 3459 }
9360ffd1
DM		 3460 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3461 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3462 sinfo->rx_packets))
3463 goto nla_put_failure;
3464 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3465 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3466 sinfo->tx_packets))
3467 goto nla_put_failure;
3468 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3469 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3470 sinfo->tx_retries))
3471 goto nla_put_failure;
3472 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3473 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3474 sinfo->tx_failed))
3475 goto nla_put_failure;
3476 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3477 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3478 sinfo->beacon_loss_count))
3479 goto nla_put_failure;
3b1c5a53
MP		 3480 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3481 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3482 sinfo->local_pm))
3483 goto nla_put_failure;
3484 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3485 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3486 sinfo->peer_pm))
3487 goto nla_put_failure;
3488 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3489 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3490 sinfo->nonpeer_pm))
3491 goto nla_put_failure;
f4263c98
PS		 3492 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3493 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3494 if (!bss_param)
3495 goto nla_put_failure;
3496
9360ffd1
DM		 3497 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3498 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3499 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3500 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3501 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3502 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3503 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3504 sinfo->bss_param.dtim_period) ||
3505 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3506 sinfo->bss_param.beacon_interval))
3507 goto nla_put_failure;
f4263c98
PS		 3508
3509 nla_nest_end(msg, bss_param);
3510 }
9360ffd1
DM		 3511 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3512 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3513 sizeof(struct nl80211_sta_flag_update),
3514 &sinfo->sta_flags))
3515 goto nla_put_failure;
7eab0f64
JL		 3516 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3517 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3518 sinfo->t_offset))
3519 goto nla_put_failure;
2ec600d6 3520 nla_nest_end(msg, sinfoattr);
fd5b74dc 3521
9360ffd1
DM		 3522 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3523 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3524 sinfo->assoc_req_ies))
3525 goto nla_put_failure;
50d3dfb7 3526
fd5b74dc
JB		 3527 return genlmsg_end(msg, hdr);
3528
3529 nla_put_failure:
bc3ed28c
TG		 3530 genlmsg_cancel(msg, hdr);
3531 return -EMSGSIZE;
fd5b74dc
JB		 3532}
3533
2ec600d6 3534static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3535 struct netlink_callback *cb)
2ec600d6 3536{
2ec600d6
LCC		 3537 struct station_info sinfo;
3538 struct cfg80211_registered_device *dev;
97990a06 3539 struct wireless_dev *wdev;
2ec600d6 3540 u8 mac_addr[ETH_ALEN];
97990a06 3541 int sta_idx = cb->args[2];
2ec600d6 3542 int err;
2ec600d6 3543
97990a06 3544 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3545 if (err)
3546 return err;
bba95fef 3547
97990a06
JB		 3548 if (!wdev->netdev) {
3549 err = -EINVAL;
3550 goto out_err;
3551 }
3552
bba95fef 3553 if (!dev->ops->dump_station) {
eec60b03 3554 err = -EOPNOTSUPP;
bba95fef
JB		 3555 goto out_err;
3556 }
3557
bba95fef 3558 while (1) {
f612cedf 3559 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3560 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3561 mac_addr, &sinfo);
bba95fef
JB		 3562 if (err == -ENOENT)
3563 break;
3564 if (err)
3b85875a 3565 goto out_err;
bba95fef
JB		 3566
3567 if (nl80211_send_station(skb,
15e47304 3568 NETLINK_CB(cb->skb).portid,
bba95fef 3569 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3570 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3571 &sinfo) < 0)
3572 goto out;
3573
3574 sta_idx++;
3575 }
3576
3577
3578 out:
97990a06 3579 cb->args[2] = sta_idx;
bba95fef 3580 err = skb->len;
bba95fef 3581 out_err:
97990a06 3582 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3583
3584 return err;
2ec600d6 3585}
fd5b74dc 3586
5727ef1b
JB		 3587static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3588{
4c476991
JB		 3589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3590 struct net_device *dev = info->user_ptr[1];
2ec600d6 3591 struct station_info sinfo;
fd5b74dc
JB		 3592 struct sk_buff *msg;
3593 u8 *mac_addr = NULL;
4c476991 3594 int err;
fd5b74dc 3595
2ec600d6 3596 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3597
3598 if (!info->attrs[NL80211_ATTR_MAC])
3599 return -EINVAL;
3600
3601 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3602
4c476991
JB		 3603 if (!rdev->ops->get_station)
3604 return -EOPNOTSUPP;
3b85875a 3605
e35e4d28 3606 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3607 if (err)
4c476991 3608 return err;
2ec600d6 3609
fd2120ca 3610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3611 if (!msg)
4c476991 3612 return -ENOMEM;
fd5b74dc 3613
15e47304 3614 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3615 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3616 nlmsg_free(msg);
3617 return -ENOBUFS;
3618 }
3b85875a 3619
4c476991 3620 return genlmsg_reply(msg, info);
5727ef1b
JB		 3621}
3622
77ee7c89
JB		 3623int cfg80211_check_station_change(struct wiphy *wiphy,
3624 struct station_parameters *params,
3625 enum cfg80211_station_type statype)
3626{
3627 if (params->listen_interval != -1)
3628 return -EINVAL;
3629 if (params->aid)
3630 return -EINVAL;
3631
3632 /* When you run into this, adjust the code below for the new flag */
3633 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3634
3635 switch (statype) {
eef941e6
TP		 3636 case CFG80211_STA_MESH_PEER_KERNEL:
3637 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3638 /*
3639 * No ignoring the TDLS flag here -- the userspace mesh
3640 * code doesn't have the bug of including TDLS in the
3641 * mask everywhere.
3642 */
3643 if (params->sta_flags_mask &
3644 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3645 BIT(NL80211_STA_FLAG_MFP) |
3646 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3647 return -EINVAL;
3648 break;
3649 case CFG80211_STA_TDLS_PEER_SETUP:
3650 case CFG80211_STA_TDLS_PEER_ACTIVE:
3651 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3652 return -EINVAL;
3653 /* ignore since it can't change */
3654 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3655 break;
3656 default:
3657 /* disallow mesh-specific things */
3658 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3659 return -EINVAL;
3660 if (params->local_pm)
3661 return -EINVAL;
3662 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3663 return -EINVAL;
3664 }
3665
3666 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3667 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3668 /* TDLS can't be set, ... */
3669 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3670 return -EINVAL;
3671 /*
3672 * ... but don't bother the driver with it. This works around
3673 * a hostapd/wpa_supplicant issue -- it always includes the
3674 * TLDS_PEER flag in the mask even for AP mode.
3675 */
3676 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3677 }
3678
3679 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3680 /* reject other things that can't change */
3681 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3682 return -EINVAL;
3683 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3684 return -EINVAL;
3685 if (params->supported_rates)
3686 return -EINVAL;
3687 if (params->ext_capab || params->ht_capa || params->vht_capa)
3688 return -EINVAL;
3689 }
3690
3691 if (statype != CFG80211_STA_AP_CLIENT) {
3692 if (params->vlan)
3693 return -EINVAL;
3694 }
3695
3696 switch (statype) {
3697 case CFG80211_STA_AP_MLME_CLIENT:
3698 /* Use this only for authorizing/unauthorizing a station */
3699 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3700 return -EOPNOTSUPP;
3701 break;
3702 case CFG80211_STA_AP_CLIENT:
3703 /* accept only the listed bits */
3704 if (params->sta_flags_mask &
3705 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3706 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3707 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3708 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3709 BIT(NL80211_STA_FLAG_WME) |
3710 BIT(NL80211_STA_FLAG_MFP)))
3711 return -EINVAL;
3712
3713 /* but authenticated/associated only if driver handles it */
3714 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3715 params->sta_flags_mask &
3716 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3717 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3718 return -EINVAL;
3719 break;
3720 case CFG80211_STA_IBSS:
3721 case CFG80211_STA_AP_STA:
3722 /* reject any changes other than AUTHORIZED */
3723 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3724 return -EINVAL;
3725 break;
3726 case CFG80211_STA_TDLS_PEER_SETUP:
3727 /* reject any changes other than AUTHORIZED or WME */
3728 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3729 BIT(NL80211_STA_FLAG_WME)))
3730 return -EINVAL;
3731 /* force (at least) rates when authorizing */
3732 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3733 !params->supported_rates)
3734 return -EINVAL;
3735 break;
3736 case CFG80211_STA_TDLS_PEER_ACTIVE:
3737 /* reject any changes */
3738 return -EINVAL;
eef941e6 3739 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3740 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3741 return -EINVAL;
3742 break;
eef941e6 3743 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3744 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3745 return -EINVAL;
3746 break;
3747 }
3748
3749 return 0;
3750}
3751EXPORT_SYMBOL(cfg80211_check_station_change);
3752
5727ef1b 3753/*
c258d2de 3754 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3755 */
80b99899
JB		 3756static struct net_device *get_vlan(struct genl_info *info,
3757 struct cfg80211_registered_device *rdev)
5727ef1b 3758{
463d0183 3759 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3760 struct net_device *v;
3761 int ret;
3762
3763 if (!vlanattr)
3764 return NULL;
3765
3766 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3767 if (!v)
3768 return ERR_PTR(-ENODEV);
3769
3770 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3771 ret = -EINVAL;
3772 goto error;
5727ef1b 3773 }
80b99899 3774
77ee7c89
JB		 3775 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3776 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3777 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3778 ret = -EINVAL;
3779 goto error;
3780 }
3781
80b99899
JB		 3782 if (!netif_running(v)) {
3783 ret = -ENETDOWN;
3784 goto error;
3785 }
3786
3787 return v;
3788 error:
3789 dev_put(v);
3790 return ERR_PTR(ret);
5727ef1b
JB		 3791}
3792
df881293
JM		 3793static struct nla_policy
3794nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3795 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3796 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3797};
3798
ff276691
JB		 3799static int nl80211_parse_sta_wme(struct genl_info *info,
3800 struct station_parameters *params)
df881293 3801{
df881293
JM		 3802 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3803 struct nlattr *nla;
3804 int err;
3805
df881293
JM		 3806 /* parse WME attributes if present */
3807 if (!info->attrs[NL80211_ATTR_STA_WME])
3808 return 0;
3809
3810 nla = info->attrs[NL80211_ATTR_STA_WME];
3811 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3812 nl80211_sta_wme_policy);
3813 if (err)
3814 return err;
3815
3816 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3817 params->uapsd_queues = nla_get_u8(
3818 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3819 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3820 return -EINVAL;
3821
3822 if (tb[NL80211_STA_WME_MAX_SP])
3823 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3824
3825 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3826 return -EINVAL;
3827
3828 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3829
3830 return 0;
3831}
3832
ff276691
JB		 3833static int nl80211_set_station_tdls(struct genl_info *info,
3834 struct station_parameters *params)
3835{
3836 /* Dummy STA entry gets updated once the peer capabilities are known */
3837 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3838 params->ht_capa =
3839 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3840 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3841 params->vht_capa =
3842 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3843
3844 return nl80211_parse_sta_wme(info, params);
3845}
3846
5727ef1b
JB		 3847static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3848{
4c476991 3849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3850 struct net_device *dev = info->user_ptr[1];
5727ef1b 3851 struct station_parameters params;
77ee7c89
JB		 3852 u8 *mac_addr;
3853 int err;
5727ef1b
JB		 3854
3855 memset(&params, 0, sizeof(params));
3856
3857 params.listen_interval = -1;
3858
77ee7c89
JB		 3859 if (!rdev->ops->change_station)
3860 return -EOPNOTSUPP;
3861
5727ef1b
JB		 3862 if (info->attrs[NL80211_ATTR_STA_AID])
3863 return -EINVAL;
3864
3865 if (!info->attrs[NL80211_ATTR_MAC])
3866 return -EINVAL;
3867
3868 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3869
3870 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3871 params.supported_rates =
3872 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3873 params.supported_rates_len =
3874 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3875 }
3876
9d62a986
JM		 3877 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3878 params.capability =
3879 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3880 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3881 }
3882
3883 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3884 params.ext_capab =
3885 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3886 params.ext_capab_len =
3887 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3888 }
3889
df881293 3890 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3891 return -EINVAL;
36aedc90 3892
bdd3ae3d 3893 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3894 return -EINVAL;
3895
f8bacc21 3896 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3897 params.plink_action =
f8bacc21
JB		 3898 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3899 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3900 return -EINVAL;
3901 }
2ec600d6 3902
f8bacc21 3903 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3904 params.plink_state =
f8bacc21
JB		 3905 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3906 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3907 return -EINVAL;
3908 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3909 }
9c3990aa 3910
3b1c5a53
MP		 3911 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3912 enum nl80211_mesh_power_mode pm = nla_get_u32(
3913 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3914
3915 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3916 pm > NL80211_MESH_POWER_MAX)
3917 return -EINVAL;
3918
3919 params.local_pm = pm;
3920 }
3921
77ee7c89
JB		 3922 /* Include parameters for TDLS peer (will check later) */
3923 err = nl80211_set_station_tdls(info, &params);
3924 if (err)
3925 return err;
3926
3927 params.vlan = get_vlan(info, rdev);
3928 if (IS_ERR(params.vlan))
3929 return PTR_ERR(params.vlan);
3930
a97f4424
JB		 3931 switch (dev->ieee80211_ptr->iftype) {
3932 case NL80211_IFTYPE_AP:
3933 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3934 case NL80211_IFTYPE_P2P_GO:
074ac8df 3935 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3936 case NL80211_IFTYPE_STATION:
267335d6 3937 case NL80211_IFTYPE_ADHOC:
a97f4424 3938 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3939 break;
3940 default:
77ee7c89
JB		 3941 err = -EOPNOTSUPP;
3942 goto out_put_vlan;
034d655e
JB		 3943 }
3944
77ee7c89 3945 /* driver will call cfg80211_check_station_change() */
e35e4d28 3946 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3947
77ee7c89 3948 out_put_vlan:
5727ef1b
JB		 3949 if (params.vlan)
3950 dev_put(params.vlan);
3b85875a 3951
5727ef1b
JB		 3952 return err;
3953}
3954
3955static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3956{
4c476991 3957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3958 int err;
4c476991 3959 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3960 struct station_parameters params;
3961 u8 *mac_addr = NULL;
3962
3963 memset(&params, 0, sizeof(params));
3964
984c311b
JB		 3965 if (!rdev->ops->add_station)
3966 return -EOPNOTSUPP;
3967
5727ef1b
JB		 3968 if (!info->attrs[NL80211_ATTR_MAC])
3969 return -EINVAL;
3970
5727ef1b
JB		 3971 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3972 return -EINVAL;
3973
3974 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3975 return -EINVAL;
3976
0e956c13
TLSC		 3977 if (!info->attrs[NL80211_ATTR_STA_AID])
3978 return -EINVAL;
3979
5727ef1b
JB		 3980 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3981 params.supported_rates =
3982 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3983 params.supported_rates_len =
3984 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3985 params.listen_interval =
3986 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3987
0e956c13
TLSC		 3988 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3989 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3990 return -EINVAL;
51b50fbe 3991
9d62a986
JM		 3992 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3993 params.capability =
3994 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3995 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3996 }
3997
3998 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3999 params.ext_capab =
4000 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4001 params.ext_capab_len =
4002 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4003 }
4004
36aedc90
JM		 4005 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4006 params.ht_capa =
4007 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4008
f461be3e
MP		 4009 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4010 params.vht_capa =
4011 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4012
f8bacc21 4013 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4014 params.plink_action =
f8bacc21
JB		 4015 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4016 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4017 return -EINVAL;
4018 }
96b78dff 4019
ff276691
JB		 4020 err = nl80211_parse_sta_wme(info, &params);
4021 if (err)
4022 return err;
bdd90d5e 4023
bdd3ae3d 4024 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4025 return -EINVAL;
4026
77ee7c89
JB		 4027 /* When you run into this, adjust the code below for the new flag */
4028 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4029
bdd90d5e
JB		 4030 switch (dev->ieee80211_ptr->iftype) {
4031 case NL80211_IFTYPE_AP:
4032 case NL80211_IFTYPE_AP_VLAN:
4033 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4034 /* ignore WME attributes if iface/sta is not capable */
4035 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4036 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4037 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4038
bdd90d5e
JB		 4039 /* TDLS peers cannot be added */
4040 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 4041 return -EINVAL;
bdd90d5e
JB		 4042 /* but don't bother the driver with it */
4043 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4044
d582cffb
JB		 4045 /* allow authenticated/associated only if driver handles it */
4046 if (!(rdev->wiphy.features &
4047 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4048 params.sta_flags_mask &
4049 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4050 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4051 return -EINVAL;
4052
bdd90d5e
JB		 4053 /* must be last in here for error handling */
4054 params.vlan = get_vlan(info, rdev);
4055 if (IS_ERR(params.vlan))
4056 return PTR_ERR(params.vlan);
4057 break;
4058 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4059 /* ignore uAPSD data */
4060 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4061
d582cffb
JB		 4062 /* associated is disallowed */
4063 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4064 return -EINVAL;
bdd90d5e
JB		 4065 /* TDLS peers cannot be added */
4066 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4067 return -EINVAL;
4068 break;
4069 case NL80211_IFTYPE_STATION:
93d08f0b 4070 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4071 /* ignore uAPSD data */
4072 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4073
77ee7c89
JB		 4074 /* these are disallowed */
4075 if (params.sta_flags_mask &
4076 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4077 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4078 return -EINVAL;
bdd90d5e
JB		 4079 /* Only TDLS peers can be added */
4080 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4081 return -EINVAL;
4082 /* Can only add if TDLS ... */
4083 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4084 return -EOPNOTSUPP;
4085 /* ... with external setup is supported */
4086 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4087 return -EOPNOTSUPP;
77ee7c89
JB		 4088 /*
4089 * Older wpa_supplicant versions always mark the TDLS peer
4090 * as authorized, but it shouldn't yet be.
4091 */
4092 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4093 break;
4094 default:
4095 return -EOPNOTSUPP;
c75786c9
EP		 4096 }
4097
bdd90d5e 4098 /* be aware of params.vlan when changing code here */
5727ef1b 4099
e35e4d28 4100 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4101
5727ef1b
JB		 4102 if (params.vlan)
4103 dev_put(params.vlan);
5727ef1b
JB		 4104 return err;
4105}
4106
4107static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4108{
4c476991
JB		 4109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4110 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4111 u8 *mac_addr = NULL;
4112
4113 if (info->attrs[NL80211_ATTR_MAC])
4114 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4115
e80cf853 4116 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4117 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4118 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4119 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4120 return -EINVAL;
5727ef1b 4121
4c476991
JB		 4122 if (!rdev->ops->del_station)
4123 return -EOPNOTSUPP;
3b85875a 4124
e35e4d28 4125 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4126}
4127
15e47304 4128static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4129 int flags, struct net_device *dev,
4130 u8 *dst, u8 *next_hop,
4131 struct mpath_info *pinfo)
4132{
4133 void *hdr;
4134 struct nlattr *pinfoattr;
4135
15e47304 4136 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4137 if (!hdr)
4138 return -1;
4139
9360ffd1
DM		 4140 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4141 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4142 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4143 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4144 goto nla_put_failure;
f5ea9120 4145
2ec600d6
LCC		 4146 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4147 if (!pinfoattr)
4148 goto nla_put_failure;
9360ffd1
DM		 4149 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4150 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4151 pinfo->frame_qlen))
4152 goto nla_put_failure;
4153 if (((pinfo->filled & MPATH_INFO_SN) &&
4154 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4155 ((pinfo->filled & MPATH_INFO_METRIC) &&
4156 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4157 pinfo->metric)) ||
4158 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4159 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4160 pinfo->exptime)) ||
4161 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4162 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4163 pinfo->flags)) ||
4164 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4165 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4166 pinfo->discovery_timeout)) ||
4167 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4168 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4169 pinfo->discovery_retries)))
4170 goto nla_put_failure;
2ec600d6
LCC		 4171
4172 nla_nest_end(msg, pinfoattr);
4173
4174 return genlmsg_end(msg, hdr);
4175
4176 nla_put_failure:
bc3ed28c
TG		 4177 genlmsg_cancel(msg, hdr);
4178 return -EMSGSIZE;
2ec600d6
LCC		 4179}
4180
4181static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4182 struct netlink_callback *cb)
2ec600d6 4183{
2ec600d6
LCC		 4184 struct mpath_info pinfo;
4185 struct cfg80211_registered_device *dev;
97990a06 4186 struct wireless_dev *wdev;
2ec600d6
LCC		 4187 u8 dst[ETH_ALEN];
4188 u8 next_hop[ETH_ALEN];
97990a06 4189 int path_idx = cb->args[2];
2ec600d6 4190 int err;
2ec600d6 4191
97990a06 4192 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4193 if (err)
4194 return err;
bba95fef
JB		 4195
4196 if (!dev->ops->dump_mpath) {
eec60b03 4197 err = -EOPNOTSUPP;
bba95fef
JB		 4198 goto out_err;
4199 }
4200
97990a06 4201 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4202 err = -EOPNOTSUPP;
0448b5fc 4203 goto out_err;
eec60b03
JM		 4204 }
4205
bba95fef 4206 while (1) {
97990a06
JB		 4207 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4208 next_hop, &pinfo);
bba95fef 4209 if (err == -ENOENT)
2ec600d6 4210 break;
bba95fef 4211 if (err)
3b85875a 4212 goto out_err;
2ec600d6 4213
15e47304 4214 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4215 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4216 wdev->netdev, dst, next_hop,
bba95fef
JB		 4217 &pinfo) < 0)
4218 goto out;
2ec600d6 4219
bba95fef 4220 path_idx++;
2ec600d6 4221 }
2ec600d6 4222
2ec600d6 4223
bba95fef 4224 out:
97990a06 4225 cb->args[2] = path_idx;
bba95fef 4226 err = skb->len;
bba95fef 4227 out_err:
97990a06 4228 nl80211_finish_wdev_dump(dev);
bba95fef 4229 return err;
2ec600d6
LCC		 4230}
4231
4232static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4233{
4c476991 4234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4235 int err;
4c476991 4236 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4237 struct mpath_info pinfo;
4238 struct sk_buff *msg;
4239 u8 *dst = NULL;
4240 u8 next_hop[ETH_ALEN];
4241
4242 memset(&pinfo, 0, sizeof(pinfo));
4243
4244 if (!info->attrs[NL80211_ATTR_MAC])
4245 return -EINVAL;
4246
4247 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4248
4c476991
JB		 4249 if (!rdev->ops->get_mpath)
4250 return -EOPNOTSUPP;
2ec600d6 4251
4c476991
JB		 4252 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4253 return -EOPNOTSUPP;
eec60b03 4254
e35e4d28 4255 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4256 if (err)
4c476991 4257 return err;
2ec600d6 4258
fd2120ca 4259 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4260 if (!msg)
4c476991 4261 return -ENOMEM;
2ec600d6 4262
15e47304 4263 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4264 dev, dst, next_hop, &pinfo) < 0) {
4265 nlmsg_free(msg);
4266 return -ENOBUFS;
4267 }
3b85875a 4268
4c476991 4269 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4270}
4271
4272static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4273{
4c476991
JB		 4274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4275 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4276 u8 *dst = NULL;
4277 u8 *next_hop = NULL;
4278
4279 if (!info->attrs[NL80211_ATTR_MAC])
4280 return -EINVAL;
4281
4282 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4283 return -EINVAL;
4284
4285 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4286 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4287
4c476991
JB		 4288 if (!rdev->ops->change_mpath)
4289 return -EOPNOTSUPP;
35a8efe1 4290
4c476991
JB		 4291 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4292 return -EOPNOTSUPP;
2ec600d6 4293
e35e4d28 4294 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4295}
4c476991 4296
2ec600d6
LCC		 4297static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4298{
4c476991
JB		 4299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4300 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4301 u8 *dst = NULL;
4302 u8 *next_hop = NULL;
4303
4304 if (!info->attrs[NL80211_ATTR_MAC])
4305 return -EINVAL;
4306
4307 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4308 return -EINVAL;
4309
4310 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4311 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4312
4c476991
JB		 4313 if (!rdev->ops->add_mpath)
4314 return -EOPNOTSUPP;
35a8efe1 4315
4c476991
JB		 4316 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4317 return -EOPNOTSUPP;
2ec600d6 4318
e35e4d28 4319 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4320}
4321
4322static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4323{
4c476991
JB		 4324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4325 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4326 u8 *dst = NULL;
4327
4328 if (info->attrs[NL80211_ATTR_MAC])
4329 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4330
4c476991
JB		 4331 if (!rdev->ops->del_mpath)
4332 return -EOPNOTSUPP;
3b85875a 4333
e35e4d28 4334 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4335}
4336
9f1ba906
JM		 4337static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4338{
4c476991
JB		 4339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4340 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4341 struct bss_parameters params;
4342
4343 memset(&params, 0, sizeof(params));
4344 /* default to not changing parameters */
4345 params.use_cts_prot = -1;
4346 params.use_short_preamble = -1;
4347 params.use_short_slot_time = -1;
fd8aaaf3 4348 params.ap_isolate = -1;
50b12f59 4349 params.ht_opmode = -1;
53cabad7
JB		 4350 params.p2p_ctwindow = -1;
4351 params.p2p_opp_ps = -1;
9f1ba906
JM		 4352
4353 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4354 params.use_cts_prot =
4355 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4356 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4357 params.use_short_preamble =
4358 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4359 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4360 params.use_short_slot_time =
4361 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4362 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4363 params.basic_rates =
4364 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4365 params.basic_rates_len =
4366 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4367 }
fd8aaaf3
FF		 4368 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4369 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4370 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4371 params.ht_opmode =
4372 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4373
53cabad7
JB		 4374 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4375 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4376 return -EINVAL;
4377 params.p2p_ctwindow =
4378 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4379 if (params.p2p_ctwindow < 0)
4380 return -EINVAL;
4381 if (params.p2p_ctwindow != 0 &&
4382 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4383 return -EINVAL;
4384 }
4385
4386 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4387 u8 tmp;
4388
4389 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4390 return -EINVAL;
4391 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4392 if (tmp > 1)
4393 return -EINVAL;
4394 params.p2p_opp_ps = tmp;
4395 if (params.p2p_opp_ps &&
4396 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4397 return -EINVAL;
4398 }
4399
4c476991
JB		 4400 if (!rdev->ops->change_bss)
4401 return -EOPNOTSUPP;
9f1ba906 4402
074ac8df 4403 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4404 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4405 return -EOPNOTSUPP;
3b85875a 4406
e35e4d28 4407 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4408}
4409
b54452b0 4410static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4411 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4412 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4413 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4414 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4415 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4416 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4417};
4418
4419static int parse_reg_rule(struct nlattr *tb[],
4420 struct ieee80211_reg_rule *reg_rule)
4421{
4422 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4423 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4424
4425 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4426 return -EINVAL;
4427 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4428 return -EINVAL;
4429 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4430 return -EINVAL;
4431 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4432 return -EINVAL;
4433 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4434 return -EINVAL;
4435
4436 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4437
4438 freq_range->start_freq_khz =
4439 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4440 freq_range->end_freq_khz =
4441 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4442 freq_range->max_bandwidth_khz =
4443 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4444
4445 power_rule->max_eirp =
4446 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4447
4448 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4449 power_rule->max_antenna_gain =
4450 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4451
4452 return 0;
4453}
4454
4455static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4456{
4457 int r;
4458 char *data = NULL;
57b5ce07 4459 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4460
80778f18
LR		 4461 /*
4462 * You should only get this when cfg80211 hasn't yet initialized
4463 * completely when built-in to the kernel right between the time
4464 * window between nl80211_init() and regulatory_init(), if that is
4465 * even possible.
4466 */
458f4f9e 4467 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4468 return -EINPROGRESS;
80778f18 4469
fe33eb39
LR		 4470 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4471 return -EINVAL;
b2e1b302
LR		 4472
4473 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4474
57b5ce07
LR		 4475 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4476 user_reg_hint_type =
4477 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4478 else
4479 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4480
4481 switch (user_reg_hint_type) {
4482 case NL80211_USER_REG_HINT_USER:
4483 case NL80211_USER_REG_HINT_CELL_BASE:
4484 break;
4485 default:
4486 return -EINVAL;
4487 }
4488
4489 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4490
b2e1b302
LR		 4491 return r;
4492}
4493
24bdd9f4 4494static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4495 struct genl_info *info)
93da9cc1 4496{
4c476991 4497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4498 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4499 struct wireless_dev *wdev = dev->ieee80211_ptr;
4500 struct mesh_config cur_params;
4501 int err = 0;
93da9cc1 4502 void *hdr;
4503 struct nlattr *pinfoattr;
4504 struct sk_buff *msg;
4505
29cbe68c
JB		 4506 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4507 return -EOPNOTSUPP;
4508
24bdd9f4 4509 if (!rdev->ops->get_mesh_config)
4c476991 4510 return -EOPNOTSUPP;
f3f92586 4511
29cbe68c
JB		 4512 wdev_lock(wdev);
4513 /* If not connected, get default parameters */
4514 if (!wdev->mesh_id_len)
4515 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4516 else
e35e4d28 4517 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4518 wdev_unlock(wdev);
4519
93da9cc1 4520 if (err)
4c476991 4521 return err;
93da9cc1 4522
4523 /* Draw up a netlink message to send back */
fd2120ca 4524 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4525 if (!msg)
4526 return -ENOMEM;
15e47304 4527 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4528 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4529 if (!hdr)
efe1cf0c 4530 goto out;
24bdd9f4 4531 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4532 if (!pinfoattr)
4533 goto nla_put_failure;
9360ffd1
DM		 4534 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4535 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4536 cur_params.dot11MeshRetryTimeout) ||
4537 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4538 cur_params.dot11MeshConfirmTimeout) ||
4539 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4540 cur_params.dot11MeshHoldingTimeout) ||
4541 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4542 cur_params.dot11MeshMaxPeerLinks) ||
4543 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4544 cur_params.dot11MeshMaxRetries) ||
4545 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4546 cur_params.dot11MeshTTL) ||
4547 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4548 cur_params.element_ttl) ||
4549 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4550 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4551 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4552 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4553 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4554 cur_params.dot11MeshHWMPmaxPREQretries) ||
4555 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4556 cur_params.path_refresh_time) ||
4557 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4558 cur_params.min_discovery_timeout) ||
4559 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4560 cur_params.dot11MeshHWMPactivePathTimeout) ||
4561 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4562 cur_params.dot11MeshHWMPpreqMinInterval) ||
4563 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4564 cur_params.dot11MeshHWMPperrMinInterval) ||
4565 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4566 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4567 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4568 cur_params.dot11MeshHWMPRootMode) ||
4569 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4570 cur_params.dot11MeshHWMPRannInterval) ||
4571 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4572 cur_params.dot11MeshGateAnnouncementProtocol) ||
4573 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4574 cur_params.dot11MeshForwarding) ||
4575 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4576 cur_params.rssi_threshold) ||
4577 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4578 cur_params.ht_opmode) ||
4579 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4580 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4581 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4582 cur_params.dot11MeshHWMProotInterval) ||
4583 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4584 cur_params.dot11MeshHWMPconfirmationInterval) ||
4585 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4586 cur_params.power_mode) ||
4587 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4588 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4589 goto nla_put_failure;
93da9cc1 4590 nla_nest_end(msg, pinfoattr);
4591 genlmsg_end(msg, hdr);
4c476991 4592 return genlmsg_reply(msg, info);
93da9cc1 4593
3b85875a 4594 nla_put_failure:
93da9cc1 4595 genlmsg_cancel(msg, hdr);
efe1cf0c 4596 out:
d080e275 4597 nlmsg_free(msg);
4c476991 4598 return -ENOBUFS;
93da9cc1 4599}
4600
b54452b0 4601static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4602 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4603 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4604 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4605 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4606 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4607 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4608 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4609 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4610 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4611 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4612 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4613 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4614 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4615 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4616 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4617 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4618 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4619 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4620 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4621 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4622 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4623 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4624 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4625 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4626 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4627 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4628 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4629};
4630
c80d545d
JC		 4631static const struct nla_policy
4632 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4633 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4634 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4635 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4636 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
bb2798d4 4637 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4638 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4639 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4640 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4641};
4642
24bdd9f4 4643static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4644 struct mesh_config *cfg,
4645 u32 *mask_out)
93da9cc1 4646{
93da9cc1 4647 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4648 u32 mask = 0;
93da9cc1 4649
ea54fba2
MP		 4650#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4651do { \
4652 if (tb[attr]) { \
4653 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4654 return -EINVAL; \
4655 cfg->param = fn(tb[attr]); \
4656 mask |= (1 << (attr - 1)); \
4657 } \
4658} while (0)
bd90fdcc
JB		 4659
4660
24bdd9f4 4661 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4662 return -EINVAL;
4663 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4664 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4665 nl80211_meshconf_params_policy))
93da9cc1 4666 return -EINVAL;
4667
93da9cc1 4668 /* This makes sure that there aren't more than 32 mesh config
4669 * parameters (otherwise our bitfield scheme would not work.) */
4670 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4671
4672 /* Fill in the params struct */
ea54fba2 4673 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4674 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4675 nla_get_u16);
ea54fba2 4676 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4677 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4678 nla_get_u16);
ea54fba2 4679 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4680 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4681 nla_get_u16);
ea54fba2 4682 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4683 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4684 nla_get_u16);
ea54fba2 4685 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4686 mask, NL80211_MESHCONF_MAX_RETRIES,
4687 nla_get_u8);
ea54fba2 4688 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4689 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4691 mask, NL80211_MESHCONF_ELEMENT_TTL,
4692 nla_get_u8);
ea54fba2 4693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4694 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4695 nla_get_u8);
ea54fba2
MP		 4696 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4697 1, 255, mask,
a4f606ea
CYY		 4698 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4699 nla_get_u32);
ea54fba2 4700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4701 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4702 nla_get_u8);
ea54fba2 4703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4704 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4705 nla_get_u32);
ea54fba2 4706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4707 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4708 nla_get_u16);
ea54fba2
MP		 4709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4710 1, 65535, mask,
a4f606ea
CYY		 4711 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4712 nla_get_u32);
93da9cc1 4713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4714 1, 65535, mask,
4715 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4716 nla_get_u16);
dca7e943 4717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4718 1, 65535, mask,
4719 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4720 nla_get_u16);
93da9cc1 4721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4722 dot11MeshHWMPnetDiameterTraversalTime,
4723 1, 65535, mask,
a4f606ea
CYY		 4724 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4725 nla_get_u16);
ea54fba2
MP		 4726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4727 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4728 nla_get_u8);
4729 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4730 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4731 nla_get_u16);
63c5723b 4732 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4733 dot11MeshGateAnnouncementProtocol, 0, 1,
4734 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4735 nla_get_u8);
ea54fba2 4736 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4737 mask, NL80211_MESHCONF_FORWARDING,
4738 nla_get_u8);
ea54fba2 4739 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4740 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4741 nla_get_u32);
ea54fba2 4742 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4743 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4744 nla_get_u16);
4745 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4746 1, 65535, mask,
ac1073a6
CYY		 4747 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4748 nla_get_u32);
ea54fba2 4749 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4750 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4751 nla_get_u16);
4752 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4753 dot11MeshHWMPconfirmationInterval,
4754 1, 65535, mask,
728b19e5 4755 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4756 nla_get_u16);
3b1c5a53
MP		 4757 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4758 NL80211_MESH_POWER_ACTIVE,
4759 NL80211_MESH_POWER_MAX,
4760 mask, NL80211_MESHCONF_POWER_MODE,
4761 nla_get_u32);
4762 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4763 0, 65535, mask,
4764 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4765 if (mask_out)
4766 *mask_out = mask;
c80d545d 4767
bd90fdcc
JB		 4768 return 0;
4769
4770#undef FILL_IN_MESH_PARAM_IF_SET
4771}
4772
c80d545d
JC		 4773static int nl80211_parse_mesh_setup(struct genl_info *info,
4774 struct mesh_setup *setup)
4775{
bb2798d4 4776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4777 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4778
4779 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4780 return -EINVAL;
4781 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4782 info->attrs[NL80211_ATTR_MESH_SETUP],
4783 nl80211_mesh_setup_params_policy))
4784 return -EINVAL;
4785
d299a1f2
JC		 4786 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4787 setup->sync_method =
4788 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4789 IEEE80211_SYNC_METHOD_VENDOR :
4790 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4791
c80d545d
JC		 4792 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4793 setup->path_sel_proto =
4794 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4795 IEEE80211_PATH_PROTOCOL_VENDOR :
4796 IEEE80211_PATH_PROTOCOL_HWMP;
4797
4798 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4799 setup->path_metric =
4800 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4801 IEEE80211_PATH_METRIC_VENDOR :
4802 IEEE80211_PATH_METRIC_AIRTIME;
4803
581a8b0f
JC		 4804
4805 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4806 struct nlattr *ieattr =
581a8b0f 4807 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4808 if (!is_valid_ie_attr(ieattr))
4809 return -EINVAL;
581a8b0f
JC		 4810 setup->ie = nla_data(ieattr);
4811 setup->ie_len = nla_len(ieattr);
c80d545d 4812 }
bb2798d4
TP		 4813 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4814 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4815 return -EINVAL;
4816 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4817 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4818 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4819 if (setup->is_secure)
4820 setup->user_mpm = true;
c80d545d
JC		 4821
4822 return 0;
4823}
4824
24bdd9f4 4825static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4826 struct genl_info *info)
bd90fdcc
JB		 4827{
4828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4829 struct net_device *dev = info->user_ptr[1];
29cbe68c 4830 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4831 struct mesh_config cfg;
4832 u32 mask;
4833 int err;
4834
29cbe68c
JB		 4835 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4836 return -EOPNOTSUPP;
4837
24bdd9f4 4838 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4839 return -EOPNOTSUPP;
4840
24bdd9f4 4841 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4842 if (err)
4843 return err;
4844
29cbe68c
JB		 4845 wdev_lock(wdev);
4846 if (!wdev->mesh_id_len)
4847 err = -ENOLINK;
4848
4849 if (!err)
e35e4d28 4850 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4851
4852 wdev_unlock(wdev);
4853
4854 return err;
93da9cc1 4855}
4856
f130347c
LR		 4857static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4858{
458f4f9e 4859 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4860 struct sk_buff *msg;
4861 void *hdr = NULL;
4862 struct nlattr *nl_reg_rules;
4863 unsigned int i;
4864 int err = -EINVAL;
4865
a1794390 4866 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4867
4868 if (!cfg80211_regdomain)
4869 goto out;
4870
fd2120ca 4871 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4872 if (!msg) {
4873 err = -ENOBUFS;
4874 goto out;
4875 }
4876
15e47304 4877 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4878 NL80211_CMD_GET_REG);
4879 if (!hdr)
efe1cf0c 4880 goto put_failure;
f130347c 4881
57b5ce07
LR		 4882 if (reg_last_request_cell_base() &&
4883 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4884 NL80211_USER_REG_HINT_CELL_BASE))
4885 goto nla_put_failure;
4886
458f4f9e
JB		 4887 rcu_read_lock();
4888 regdom = rcu_dereference(cfg80211_regdomain);
4889
4890 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4891 (regdom->dfs_region &&
4892 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4893 goto nla_put_failure_rcu;
4894
f130347c
LR		 4895 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4896 if (!nl_reg_rules)
458f4f9e 4897 goto nla_put_failure_rcu;
f130347c 4898
458f4f9e 4899 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4900 struct nlattr *nl_reg_rule;
4901 const struct ieee80211_reg_rule *reg_rule;
4902 const struct ieee80211_freq_range *freq_range;
4903 const struct ieee80211_power_rule *power_rule;
4904
458f4f9e 4905 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4906 freq_range = &reg_rule->freq_range;
4907 power_rule = &reg_rule->power_rule;
4908
4909 nl_reg_rule = nla_nest_start(msg, i);
4910 if (!nl_reg_rule)
458f4f9e 4911 goto nla_put_failure_rcu;
f130347c 4912
9360ffd1
DM		 4913 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4914 reg_rule->flags) ||
4915 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4916 freq_range->start_freq_khz) ||
4917 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4918 freq_range->end_freq_khz) ||
4919 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4920 freq_range->max_bandwidth_khz) ||
4921 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4922 power_rule->max_antenna_gain) ||
4923 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4924 power_rule->max_eirp))
458f4f9e 4925 goto nla_put_failure_rcu;
f130347c
LR		 4926
4927 nla_nest_end(msg, nl_reg_rule);
4928 }
458f4f9e 4929 rcu_read_unlock();
f130347c
LR		 4930
4931 nla_nest_end(msg, nl_reg_rules);
4932
4933 genlmsg_end(msg, hdr);
134e6375 4934 err = genlmsg_reply(msg, info);
f130347c
LR		 4935 goto out;
4936
458f4f9e
JB		 4937nla_put_failure_rcu:
4938 rcu_read_unlock();
f130347c
LR		 4939nla_put_failure:
4940 genlmsg_cancel(msg, hdr);
efe1cf0c 4941put_failure:
d080e275 4942 nlmsg_free(msg);
f130347c
LR		 4943 err = -EMSGSIZE;
4944out:
a1794390 4945 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4946 return err;
4947}
4948
b2e1b302
LR		 4949static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4950{
4951 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4952 struct nlattr *nl_reg_rule;
4953 char *alpha2 = NULL;
4954 int rem_reg_rules = 0, r = 0;
4955 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4956 u8 dfs_region = 0;
b2e1b302
LR		 4957 struct ieee80211_regdomain *rd = NULL;
4958
4959 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4960 return -EINVAL;
4961
4962 if (!info->attrs[NL80211_ATTR_REG_RULES])
4963 return -EINVAL;
4964
4965 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4966
8b60b078
LR		 4967 if (info->attrs[NL80211_ATTR_DFS_REGION])
4968 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4969
b2e1b302 4970 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4971 rem_reg_rules) {
b2e1b302
LR		 4972 num_rules++;
4973 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4974 return -EINVAL;
b2e1b302
LR		 4975 }
4976
b2e1b302 4977 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4978 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4979
4980 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4981 if (!rd)
4982 return -ENOMEM;
b2e1b302
LR		 4983
4984 rd->n_reg_rules = num_rules;
4985 rd->alpha2[0] = alpha2[0];
4986 rd->alpha2[1] = alpha2[1];
4987
8b60b078
LR		 4988 /*
4989 * Disable DFS master mode if the DFS region was
4990 * not supported or known on this kernel.
4991 */
4992 if (reg_supported_dfs_region(dfs_region))
4993 rd->dfs_region = dfs_region;
4994
b2e1b302 4995 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4996 rem_reg_rules) {
b2e1b302 4997 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4998 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4999 reg_rule_policy);
b2e1b302
LR		 5000 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5001 if (r)
5002 goto bad_reg;
5003
5004 rule_idx++;
5005
d0e18f83
LR		 5006 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5007 r = -EINVAL;
b2e1b302 5008 goto bad_reg;
d0e18f83 5009 }
b2e1b302
LR		 5010 }
5011
6913b49a
JB		 5012 mutex_lock(&cfg80211_mutex);
5013
b2e1b302 5014 r = set_regdom(rd);
6913b49a 5015 /* set_regdom took ownership */
1a919318 5016 rd = NULL;
6913b49a 5017 mutex_unlock(&cfg80211_mutex);
b2e1b302 5018
d2372b31 5019 bad_reg:
b2e1b302 5020 kfree(rd);
d0e18f83 5021 return r;
b2e1b302
LR		 5022}
5023
83f5e2cf
JB		 5024static int validate_scan_freqs(struct nlattr *freqs)
5025{
5026 struct nlattr *attr1, *attr2;
5027 int n_channels = 0, tmp1, tmp2;
5028
5029 nla_for_each_nested(attr1, freqs, tmp1) {
5030 n_channels++;
5031 /*
5032 * Some hardware has a limited channel list for
5033 * scanning, and it is pretty much nonsensical
5034 * to scan for a channel twice, so disallow that
5035 * and don't require drivers to check that the
5036 * channel list they get isn't longer than what
5037 * they can scan, as long as they can scan all
5038 * the channels they registered at once.
5039 */
5040 nla_for_each_nested(attr2, freqs, tmp2)
5041 if (attr1 != attr2 &&
5042 nla_get_u32(attr1) == nla_get_u32(attr2))
5043 return 0;
5044 }
5045
5046 return n_channels;
5047}
5048
2a519311
JB		 5049static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5050{
4c476991 5051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5052 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5053 struct cfg80211_scan_request *request;
2a519311
JB		 5054 struct nlattr *attr;
5055 struct wiphy *wiphy;
83f5e2cf 5056 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5057 size_t ie_len;
2a519311 5058
f4a11bb0
JB		 5059 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5060 return -EINVAL;
5061
79c97e97 5062 wiphy = &rdev->wiphy;
2a519311 5063
4c476991
JB		 5064 if (!rdev->ops->scan)
5065 return -EOPNOTSUPP;
2a519311 5066
f9f47529
JB		 5067 mutex_lock(&rdev->sched_scan_mtx);
5068 if (rdev->scan_req) {
5069 err = -EBUSY;
5070 goto unlock;
5071 }
2a519311
JB		 5072
5073 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5074 n_channels = validate_scan_freqs(
5075 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5076 if (!n_channels) {
5077 err = -EINVAL;
5078 goto unlock;
5079 }
2a519311 5080 } else {
34850ab2 5081 enum ieee80211_band band;
83f5e2cf
JB		 5082 n_channels = 0;
5083
2a519311
JB		 5084 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5085 if (wiphy->bands[band])
5086 n_channels += wiphy->bands[band]->n_channels;
5087 }
5088
5089 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5090 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5091 n_ssids++;
5092
f9f47529
JB		 5093 if (n_ssids > wiphy->max_scan_ssids) {
5094 err = -EINVAL;
5095 goto unlock;
5096 }
2a519311 5097
70692ad2
JM		 5098 if (info->attrs[NL80211_ATTR_IE])
5099 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5100 else
5101 ie_len = 0;
5102
f9f47529
JB		 5103 if (ie_len > wiphy->max_scan_ie_len) {
5104 err = -EINVAL;
5105 goto unlock;
5106 }
18a83659 5107
2a519311 5108 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5109 + sizeof(*request->ssids) * n_ssids
5110 + sizeof(*request->channels) * n_channels
70692ad2 5111 + ie_len, GFP_KERNEL);
f9f47529
JB		 5112 if (!request) {
5113 err = -ENOMEM;
5114 goto unlock;
5115 }
2a519311 5116
2a519311 5117 if (n_ssids)
5ba63533 5118 request->ssids = (void *)&request->channels[n_channels];
2a519311 5119 request->n_ssids = n_ssids;
70692ad2
JM		 5120 if (ie_len) {
5121 if (request->ssids)
5122 request->ie = (void *)(request->ssids + n_ssids);
5123 else
5124 request->ie = (void *)(request->channels + n_channels);
5125 }
2a519311 5126
584991dc 5127 i = 0;
2a519311
JB		 5128 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5129 /* user specified, bail out if channel not found */
2a519311 5130 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5131 struct ieee80211_channel *chan;
5132
5133 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5134
5135 if (!chan) {
2a519311
JB		 5136 err = -EINVAL;
5137 goto out_free;
5138 }
584991dc
JB		 5139
5140 /* ignore disabled channels */
5141 if (chan->flags & IEEE80211_CHAN_DISABLED)
5142 continue;
5143
5144 request->channels[i] = chan;
2a519311
JB		 5145 i++;
5146 }
5147 } else {
34850ab2
JB		 5148 enum ieee80211_band band;
5149
2a519311 5150 /* all channels */
2a519311
JB		 5151 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5152 int j;
5153 if (!wiphy->bands[band])
5154 continue;
5155 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5156 struct ieee80211_channel *chan;
5157
5158 chan = &wiphy->bands[band]->channels[j];
5159
5160 if (chan->flags & IEEE80211_CHAN_DISABLED)
5161 continue;
5162
5163 request->channels[i] = chan;
2a519311
JB		 5164 i++;
5165 }
5166 }
5167 }
5168
584991dc
JB		 5169 if (!i) {
5170 err = -EINVAL;
5171 goto out_free;
5172 }
5173
5174 request->n_channels = i;
5175
2a519311
JB		 5176 i = 0;
5177 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5178 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5179 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5180 err = -EINVAL;
5181 goto out_free;
5182 }
57a27e1d 5183 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5184 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5185 i++;
5186 }
5187 }
5188
70692ad2
JM		 5189 if (info->attrs[NL80211_ATTR_IE]) {
5190 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5191 memcpy((void *)request->ie,
5192 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5193 request->ie_len);
5194 }
5195
34850ab2 5196 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5197 if (wiphy->bands[i])
5198 request->rates[i] =
5199 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5200
5201 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5202 nla_for_each_nested(attr,
5203 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5204 tmp) {
5205 enum ieee80211_band band = nla_type(attr);
5206
84404623 5207 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5208 err = -EINVAL;
5209 goto out_free;
5210 }
5211 err = ieee80211_get_ratemask(wiphy->bands[band],
5212 nla_data(attr),
5213 nla_len(attr),
5214 &request->rates[band]);
5215 if (err)
5216 goto out_free;
5217 }
5218 }
5219
46856bbf 5220 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5221 request->flags = nla_get_u32(
5222 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5223 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5224 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5225 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5226 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5227 err = -EOPNOTSUPP;
5228 goto out_free;
5229 }
5230 }
ed473771 5231
e9f935e3
RM		 5232 request->no_cck =
5233 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5234
fd014284 5235 request->wdev = wdev;
79c97e97 5236 request->wiphy = &rdev->wiphy;
15d6030b 5237 request->scan_start = jiffies;
2a519311 5238
79c97e97 5239 rdev->scan_req = request;
e35e4d28 5240 err = rdev_scan(rdev, request);
2a519311 5241
463d0183 5242 if (!err) {
fd014284
JB		 5243 nl80211_send_scan_start(rdev, wdev);
5244 if (wdev->netdev)
5245 dev_hold(wdev->netdev);
4c476991 5246 } else {
2a519311 5247 out_free:
79c97e97 5248 rdev->scan_req = NULL;
2a519311
JB		 5249 kfree(request);
5250 }
3b85875a 5251
f9f47529
JB		 5252 unlock:
5253 mutex_unlock(&rdev->sched_scan_mtx);
2a519311
JB		 5254 return err;
5255}
5256
807f8a8c
LC		 5257static int nl80211_start_sched_scan(struct sk_buff *skb,
5258 struct genl_info *info)
5259{
5260 struct cfg80211_sched_scan_request *request;
5261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5262 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5263 struct nlattr *attr;
5264 struct wiphy *wiphy;
a1f1c21c 5265 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5266 u32 interval;
807f8a8c
LC		 5267 enum ieee80211_band band;
5268 size_t ie_len;
a1f1c21c 5269 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5270
5271 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5272 !rdev->ops->sched_scan_start)
5273 return -EOPNOTSUPP;
5274
5275 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5276 return -EINVAL;
5277
bbe6ad6d
LC		 5278 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5279 return -EINVAL;
5280
5281 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5282 if (interval == 0)
5283 return -EINVAL;
5284
807f8a8c
LC		 5285 wiphy = &rdev->wiphy;
5286
5287 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5288 n_channels = validate_scan_freqs(
5289 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5290 if (!n_channels)
5291 return -EINVAL;
5292 } else {
5293 n_channels = 0;
5294
5295 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5296 if (wiphy->bands[band])
5297 n_channels += wiphy->bands[band]->n_channels;
5298 }
5299
5300 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5301 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5302 tmp)
5303 n_ssids++;
5304
93b6aa69 5305 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5306 return -EINVAL;
5307
a1f1c21c
LC		 5308 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5309 nla_for_each_nested(attr,
5310 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5311 tmp)
5312 n_match_sets++;
5313
5314 if (n_match_sets > wiphy->max_match_sets)
5315 return -EINVAL;
5316
807f8a8c
LC		 5317 if (info->attrs[NL80211_ATTR_IE])
5318 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5319 else
5320 ie_len = 0;
5321
5a865bad 5322 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5323 return -EINVAL;
5324
c10841ca
LC		 5325 mutex_lock(&rdev->sched_scan_mtx);
5326
5327 if (rdev->sched_scan_req) {
5328 err = -EINPROGRESS;
5329 goto out;
5330 }
5331
807f8a8c 5332 request = kzalloc(sizeof(*request)
a2cd43c5 5333 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5334 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5335 + sizeof(*request->channels) * n_channels
807f8a8c 5336 + ie_len, GFP_KERNEL);
c10841ca
LC		 5337 if (!request) {
5338 err = -ENOMEM;
5339 goto out;
5340 }
807f8a8c
LC		 5341
5342 if (n_ssids)
5343 request->ssids = (void *)&request->channels[n_channels];
5344 request->n_ssids = n_ssids;
5345 if (ie_len) {
5346 if (request->ssids)
5347 request->ie = (void *)(request->ssids + n_ssids);
5348 else
5349 request->ie = (void *)(request->channels + n_channels);
5350 }
5351
a1f1c21c
LC		 5352 if (n_match_sets) {
5353 if (request->ie)
5354 request->match_sets = (void *)(request->ie + ie_len);
5355 else if (request->ssids)
5356 request->match_sets =
5357 (void *)(request->ssids + n_ssids);
5358 else
5359 request->match_sets =
5360 (void *)(request->channels + n_channels);
5361 }
5362 request->n_match_sets = n_match_sets;
5363
807f8a8c
LC		 5364 i = 0;
5365 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5366 /* user specified, bail out if channel not found */
5367 nla_for_each_nested(attr,
5368 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5369 tmp) {
5370 struct ieee80211_channel *chan;
5371
5372 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5373
5374 if (!chan) {
5375 err = -EINVAL;
5376 goto out_free;
5377 }
5378
5379 /* ignore disabled channels */
5380 if (chan->flags & IEEE80211_CHAN_DISABLED)
5381 continue;
5382
5383 request->channels[i] = chan;
5384 i++;
5385 }
5386 } else {
5387 /* all channels */
5388 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5389 int j;
5390 if (!wiphy->bands[band])
5391 continue;
5392 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5393 struct ieee80211_channel *chan;
5394
5395 chan = &wiphy->bands[band]->channels[j];
5396
5397 if (chan->flags & IEEE80211_CHAN_DISABLED)
5398 continue;
5399
5400 request->channels[i] = chan;
5401 i++;
5402 }
5403 }
5404 }
5405
5406 if (!i) {
5407 err = -EINVAL;
5408 goto out_free;
5409 }
5410
5411 request->n_channels = i;
5412
5413 i = 0;
5414 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5415 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5416 tmp) {
57a27e1d 5417 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5418 err = -EINVAL;
5419 goto out_free;
5420 }
57a27e1d 5421 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5422 memcpy(request->ssids[i].ssid, nla_data(attr),
5423 nla_len(attr));
807f8a8c
LC		 5424 i++;
5425 }
5426 }
5427
a1f1c21c
LC		 5428 i = 0;
5429 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5430 nla_for_each_nested(attr,
5431 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5432 tmp) {
88e920b4 5433 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5434
5435 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5436 nla_data(attr), nla_len(attr),
5437 nl80211_match_policy);
4a4ab0d7 5438 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5439 if (ssid) {
5440 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5441 err = -EINVAL;
5442 goto out_free;
5443 }
5444 memcpy(request->match_sets[i].ssid.ssid,
5445 nla_data(ssid), nla_len(ssid));
5446 request->match_sets[i].ssid.ssid_len =
5447 nla_len(ssid);
5448 }
88e920b4
TP		 5449 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5450 if (rssi)
5451 request->rssi_thold = nla_get_u32(rssi);
5452 else
5453 request->rssi_thold =
5454 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5455 i++;
5456 }
5457 }
5458
807f8a8c
LC		 5459 if (info->attrs[NL80211_ATTR_IE]) {
5460 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5461 memcpy((void *)request->ie,
5462 nla_data(info->attrs[NL80211_ATTR_IE]),
5463 request->ie_len);
5464 }
5465
46856bbf 5466 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5467 request->flags = nla_get_u32(
5468 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5469 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5470 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5471 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5472 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5473 err = -EOPNOTSUPP;
5474 goto out_free;
5475 }
5476 }
ed473771 5477
807f8a8c
LC		 5478 request->dev = dev;
5479 request->wiphy = &rdev->wiphy;
bbe6ad6d 5480 request->interval = interval;
15d6030b 5481 request->scan_start = jiffies;
807f8a8c 5482
e35e4d28 5483 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5484 if (!err) {
5485 rdev->sched_scan_req = request;
5486 nl80211_send_sched_scan(rdev, dev,
5487 NL80211_CMD_START_SCHED_SCAN);
5488 goto out;
5489 }
5490
5491out_free:
5492 kfree(request);
5493out:
c10841ca 5494 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 5495 return err;
5496}
5497
5498static int nl80211_stop_sched_scan(struct sk_buff *skb,
5499 struct genl_info *info)
5500{
5501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 5502 int err;
807f8a8c
LC		 5503
5504 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5505 !rdev->ops->sched_scan_stop)
5506 return -EOPNOTSUPP;
5507
c10841ca
LC		 5508 mutex_lock(&rdev->sched_scan_mtx);
5509 err = __cfg80211_stop_sched_scan(rdev, false);
5510 mutex_unlock(&rdev->sched_scan_mtx);
5511
5512 return err;
807f8a8c
LC		 5513}
5514
04f39047
SW		 5515static int nl80211_start_radar_detection(struct sk_buff *skb,
5516 struct genl_info *info)
5517{
5518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5519 struct net_device *dev = info->user_ptr[1];
5520 struct wireless_dev *wdev = dev->ieee80211_ptr;
5521 struct cfg80211_chan_def chandef;
5522 int err;
5523
5524 err = nl80211_parse_chandef(rdev, info, &chandef);
5525 if (err)
5526 return err;
5527
5528 if (wdev->cac_started)
5529 return -EBUSY;
5530
5531 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5532 if (err < 0)
5533 return err;
5534
5535 if (err == 0)
5536 return -EINVAL;
5537
5538 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5539 return -EINVAL;
5540
5541 if (!rdev->ops->start_radar_detection)
5542 return -EOPNOTSUPP;
5543
5544 mutex_lock(&rdev->devlist_mtx);
5545 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5546 chandef.chan, CHAN_MODE_SHARED,
5547 BIT(chandef.width));
5548 if (err)
5549 goto err_locked;
5550
5551 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5552 if (!err) {
5553 wdev->channel = chandef.chan;
5554 wdev->cac_started = true;
5555 wdev->cac_start_time = jiffies;
5556 }
5557err_locked:
5558 mutex_unlock(&rdev->devlist_mtx);
5559
5560 return err;
5561}
5562
9720bb3a
JB		 5563static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5564 u32 seq, int flags,
2a519311 5565 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5566 struct wireless_dev *wdev,
5567 struct cfg80211_internal_bss *intbss)
2a519311 5568{
48ab905d 5569 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5570 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5571 void *hdr;
5572 struct nlattr *bss;
8cef2c9d 5573 bool tsf = false;
48ab905d
JB		 5574
5575 ASSERT_WDEV_LOCK(wdev);
2a519311 5576
15e47304 5577 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5578 NL80211_CMD_NEW_SCAN_RESULTS);
5579 if (!hdr)
5580 return -1;
5581
9720bb3a
JB		 5582 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5583
97990a06
JB		 5584 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5585 goto nla_put_failure;
5586 if (wdev->netdev &&
9360ffd1
DM		 5587 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5588 goto nla_put_failure;
97990a06
JB		 5589 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5590 goto nla_put_failure;
2a519311
JB		 5591
5592 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5593 if (!bss)
5594 goto nla_put_failure;
9360ffd1 5595 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5596 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5597 goto nla_put_failure;
9caf0364
JB		 5598
5599 rcu_read_lock();
5600 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5601 if (ies) {
5602 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5603 goto fail_unlock_rcu;
5604 tsf = true;
5605 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5606 ies->len, ies->data))
5607 goto fail_unlock_rcu;
9caf0364
JB		 5608 }
5609 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5610 if (ies) {
5611 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5612 goto fail_unlock_rcu;
5613 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5614 ies->len, ies->data))
5615 goto fail_unlock_rcu;
9caf0364
JB		 5616 }
5617 rcu_read_unlock();
5618
9360ffd1
DM		 5619 if (res->beacon_interval &&
5620 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5621 goto nla_put_failure;
5622 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5623 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5624 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5625 jiffies_to_msecs(jiffies - intbss->ts)))
5626 goto nla_put_failure;
2a519311 5627
77965c97 5628 switch (rdev->wiphy.signal_type) {
2a519311 5629 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5630 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5631 goto nla_put_failure;
2a519311
JB		 5632 break;
5633 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5634 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5635 goto nla_put_failure;
2a519311
JB		 5636 break;
5637 default:
5638 break;
5639 }
5640
48ab905d 5641 switch (wdev->iftype) {
074ac8df 5642 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5643 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5644 if (intbss == wdev->current_bss &&
5645 nla_put_u32(msg, NL80211_BSS_STATUS,
5646 NL80211_BSS_STATUS_ASSOCIATED))
5647 goto nla_put_failure;
48ab905d
JB		 5648 break;
5649 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5650 if (intbss == wdev->current_bss &&
5651 nla_put_u32(msg, NL80211_BSS_STATUS,
5652 NL80211_BSS_STATUS_IBSS_JOINED))
5653 goto nla_put_failure;
48ab905d
JB		 5654 break;
5655 default:
5656 break;
5657 }
5658
2a519311
JB		 5659 nla_nest_end(msg, bss);
5660
5661 return genlmsg_end(msg, hdr);
5662
8cef2c9d
JB		 5663 fail_unlock_rcu:
5664 rcu_read_unlock();
2a519311
JB		 5665 nla_put_failure:
5666 genlmsg_cancel(msg, hdr);
5667 return -EMSGSIZE;
5668}
5669
97990a06 5670static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5671{
48ab905d 5672 struct cfg80211_registered_device *rdev;
2a519311 5673 struct cfg80211_internal_bss *scan;
48ab905d 5674 struct wireless_dev *wdev;
97990a06 5675 int start = cb->args[2], idx = 0;
2a519311
JB		 5676 int err;
5677
97990a06 5678 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5679 if (err)
5680 return err;
2a519311 5681
48ab905d
JB		 5682 wdev_lock(wdev);
5683 spin_lock_bh(&rdev->bss_lock);
5684 cfg80211_bss_expire(rdev);
5685
9720bb3a
JB		 5686 cb->seq = rdev->bss_generation;
5687
48ab905d 5688 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5689 if (++idx <= start)
5690 continue;
9720bb3a 5691 if (nl80211_send_bss(skb, cb,
2a519311 5692 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5693 rdev, wdev, scan) < 0) {
2a519311 5694 idx--;
67748893 5695 break;
2a519311
JB		 5696 }
5697 }
5698
48ab905d
JB		 5699 spin_unlock_bh(&rdev->bss_lock);
5700 wdev_unlock(wdev);
2a519311 5701
97990a06
JB		 5702 cb->args[2] = idx;
5703 nl80211_finish_wdev_dump(rdev);
2a519311 5704
67748893 5705 return skb->len;
2a519311
JB		 5706}
5707
15e47304 5708static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5709 int flags, struct net_device *dev,
5710 struct survey_info *survey)
5711{
5712 void *hdr;
5713 struct nlattr *infoattr;
5714
15e47304 5715 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5716 NL80211_CMD_NEW_SURVEY_RESULTS);
5717 if (!hdr)
5718 return -ENOMEM;
5719
9360ffd1
DM		 5720 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5721 goto nla_put_failure;
61fa713c
HS		 5722
5723 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5724 if (!infoattr)
5725 goto nla_put_failure;
5726
9360ffd1
DM		 5727 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5728 survey->channel->center_freq))
5729 goto nla_put_failure;
5730
5731 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5732 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5733 goto nla_put_failure;
5734 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5735 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5736 goto nla_put_failure;
5737 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5738 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5739 survey->channel_time))
5740 goto nla_put_failure;
5741 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5742 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5743 survey->channel_time_busy))
5744 goto nla_put_failure;
5745 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5746 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5747 survey->channel_time_ext_busy))
5748 goto nla_put_failure;
5749 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5750 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5751 survey->channel_time_rx))
5752 goto nla_put_failure;
5753 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5754 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5755 survey->channel_time_tx))
5756 goto nla_put_failure;
61fa713c
HS		 5757
5758 nla_nest_end(msg, infoattr);
5759
5760 return genlmsg_end(msg, hdr);
5761
5762 nla_put_failure:
5763 genlmsg_cancel(msg, hdr);
5764 return -EMSGSIZE;
5765}
5766
5767static int nl80211_dump_survey(struct sk_buff *skb,
5768 struct netlink_callback *cb)
5769{
5770 struct survey_info survey;
5771 struct cfg80211_registered_device *dev;
97990a06
JB		 5772 struct wireless_dev *wdev;
5773 int survey_idx = cb->args[2];
61fa713c
HS		 5774 int res;
5775
97990a06 5776 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 5777 if (res)
5778 return res;
61fa713c 5779
97990a06
JB		 5780 if (!wdev->netdev) {
5781 res = -EINVAL;
5782 goto out_err;
5783 }
5784
61fa713c
HS		 5785 if (!dev->ops->dump_survey) {
5786 res = -EOPNOTSUPP;
5787 goto out_err;
5788 }
5789
5790 while (1) {
180cdc79
LR		 5791 struct ieee80211_channel *chan;
5792
97990a06 5793 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 5794 if (res == -ENOENT)
5795 break;
5796 if (res)
5797 goto out_err;
5798
180cdc79
LR		 5799 /* Survey without a channel doesn't make sense */
5800 if (!survey.channel) {
5801 res = -EINVAL;
5802 goto out;
5803 }
5804
5805 chan = ieee80211_get_channel(&dev->wiphy,
5806 survey.channel->center_freq);
5807 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5808 survey_idx++;
5809 continue;
5810 }
5811
61fa713c 5812 if (nl80211_send_survey(skb,
15e47304 5813 NETLINK_CB(cb->skb).portid,
61fa713c 5814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5815 wdev->netdev, &survey) < 0)
61fa713c
HS		 5816 goto out;
5817 survey_idx++;
5818 }
5819
5820 out:
97990a06 5821 cb->args[2] = survey_idx;
61fa713c
HS		 5822 res = skb->len;
5823 out_err:
97990a06 5824 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 5825 return res;
5826}
5827
b23aa676
SO		 5828static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5829{
5830 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5831 NL80211_WPA_VERSION_2));
5832}
5833
636a5d36
JM		 5834static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5835{
4c476991
JB		 5836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5837 struct net_device *dev = info->user_ptr[1];
19957bb3 5838 struct ieee80211_channel *chan;
e39e5b5e
JM		 5839 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5840 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5841 enum nl80211_auth_type auth_type;
fffd0934 5842 struct key_parse key;
d5cdfacb 5843 bool local_state_change;
636a5d36 5844
f4a11bb0
JB		 5845 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5846 return -EINVAL;
5847
5848 if (!info->attrs[NL80211_ATTR_MAC])
5849 return -EINVAL;
5850
1778092e
JM		 5851 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5852 return -EINVAL;
5853
19957bb3
JB		 5854 if (!info->attrs[NL80211_ATTR_SSID])
5855 return -EINVAL;
5856
5857 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5858 return -EINVAL;
5859
fffd0934
JB		 5860 err = nl80211_parse_key(info, &key);
5861 if (err)
5862 return err;
5863
5864 if (key.idx >= 0) {
e31b8213
JB		 5865 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5866 return -EINVAL;
fffd0934
JB		 5867 if (!key.p.key || !key.p.key_len)
5868 return -EINVAL;
5869 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5870 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5871 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5872 key.p.key_len != WLAN_KEY_LEN_WEP104))
5873 return -EINVAL;
5874 if (key.idx > 4)
5875 return -EINVAL;
5876 } else {
5877 key.p.key_len = 0;
5878 key.p.key = NULL;
5879 }
5880
afea0b7a
JB		 5881 if (key.idx >= 0) {
5882 int i;
5883 bool ok = false;
5884 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5885 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5886 ok = true;
5887 break;
5888 }
5889 }
4c476991
JB		 5890 if (!ok)
5891 return -EINVAL;
afea0b7a
JB		 5892 }
5893
4c476991
JB		 5894 if (!rdev->ops->auth)
5895 return -EOPNOTSUPP;
636a5d36 5896
074ac8df 5897 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5899 return -EOPNOTSUPP;
eec60b03 5900
19957bb3 5901 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5902 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5903 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5904 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5905 return -EINVAL;
636a5d36 5906
19957bb3
JB		 5907 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5908 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5909
5910 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5911 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5912 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5913 }
5914
19957bb3 5915 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5916 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5917 return -EINVAL;
636a5d36 5918
e39e5b5e
JM		 5919 if (auth_type == NL80211_AUTHTYPE_SAE &&
5920 !info->attrs[NL80211_ATTR_SAE_DATA])
5921 return -EINVAL;
5922
5923 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5924 if (auth_type != NL80211_AUTHTYPE_SAE)
5925 return -EINVAL;
5926 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5927 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5928 /* need to include at least Auth Transaction and Status Code */
5929 if (sae_data_len < 4)
5930 return -EINVAL;
5931 }
5932
d5cdfacb
JM		 5933 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5934
95de817b
JB		 5935 /*
5936 * Since we no longer track auth state, ignore
5937 * requests to only change local state.
5938 */
5939 if (local_state_change)
5940 return 0;
5941
4c476991
JB		 5942 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5943 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5944 key.p.key, key.p.key_len, key.idx,
5945 sae_data, sae_data_len);
636a5d36
JM		 5946}
5947
c0692b8f
JB		 5948static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5949 struct genl_info *info,
3dc27d25
JB		 5950 struct cfg80211_crypto_settings *settings,
5951 int cipher_limit)
b23aa676 5952{
c0b2bbd8
JB		 5953 memset(settings, 0, sizeof(*settings));
5954
b23aa676
SO		 5955 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5956
c0692b8f
JB		 5957 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5958 u16 proto;
5959 proto = nla_get_u16(
5960 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5961 settings->control_port_ethertype = cpu_to_be16(proto);
5962 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5963 proto != ETH_P_PAE)
5964 return -EINVAL;
5965 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5966 settings->control_port_no_encrypt = true;
5967 } else
5968 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5969
b23aa676
SO		 5970 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5971 void *data;
5972 int len, i;
5973
5974 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5975 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5976 settings->n_ciphers_pairwise = len / sizeof(u32);
5977
5978 if (len % sizeof(u32))
5979 return -EINVAL;
5980
3dc27d25 5981 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5982 return -EINVAL;
5983
5984 memcpy(settings->ciphers_pairwise, data, len);
5985
5986 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5987 if (!cfg80211_supported_cipher_suite(
5988 &rdev->wiphy,
b23aa676
SO		 5989 settings->ciphers_pairwise[i]))
5990 return -EINVAL;
5991 }
5992
5993 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5994 settings->cipher_group =
5995 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5996 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5997 settings->cipher_group))
b23aa676
SO		 5998 return -EINVAL;
5999 }
6000
6001 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6002 settings->wpa_versions =
6003 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6004 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6005 return -EINVAL;
6006 }
6007
6008 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6009 void *data;
6d30240e 6010 int len;
b23aa676
SO		 6011
6012 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6013 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6014 settings->n_akm_suites = len / sizeof(u32);
6015
6016 if (len % sizeof(u32))
6017 return -EINVAL;
6018
1b9ca027
JM		 6019 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6020 return -EINVAL;
6021
b23aa676 6022 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6023 }
6024
6025 return 0;
6026}
6027
636a5d36
JM		 6028static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6029{
4c476991
JB		 6030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6031 struct net_device *dev = info->user_ptr[1];
f444de05 6032 struct ieee80211_channel *chan;
f62fab73
JB		 6033 struct cfg80211_assoc_request req = {};
6034 const u8 *bssid, *ssid;
6035 int err, ssid_len = 0;
636a5d36 6036
f4a11bb0
JB		 6037 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6038 return -EINVAL;
6039
6040 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6041 !info->attrs[NL80211_ATTR_SSID] ||
6042 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6043 return -EINVAL;
6044
4c476991
JB		 6045 if (!rdev->ops->assoc)
6046 return -EOPNOTSUPP;
636a5d36 6047
074ac8df 6048 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6049 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6050 return -EOPNOTSUPP;
eec60b03 6051
19957bb3 6052 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6053
19957bb3
JB		 6054 chan = ieee80211_get_channel(&rdev->wiphy,
6055 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6056 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6057 return -EINVAL;
636a5d36 6058
19957bb3
JB		 6059 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6060 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6061
6062 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6063 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6064 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6065 }
6066
dc6382ce 6067 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6068 enum nl80211_mfp mfp =
dc6382ce 6069 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6070 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6071 req.use_mfp = true;
4c476991
JB		 6072 else if (mfp != NL80211_MFP_NO)
6073 return -EINVAL;
dc6382ce
JM		 6074 }
6075
3e5d7649 6076 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6077 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6078
7e7c8926 6079 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6080 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6081
6082 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6083 memcpy(&req.ht_capa_mask,
6084 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6085 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6086
6087 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6088 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6089 return -EINVAL;
f62fab73
JB		 6090 memcpy(&req.ht_capa,
6091 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6092 sizeof(req.ht_capa));
7e7c8926
BG		 6093 }
6094
ee2aca34 6095 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6096 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6097
6098 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6099 memcpy(&req.vht_capa_mask,
6100 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6101 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6102
6103 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6104 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6105 return -EINVAL;
f62fab73
JB		 6106 memcpy(&req.vht_capa,
6107 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6108 sizeof(req.vht_capa));
ee2aca34
JB		 6109 }
6110
f62fab73 6111 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
b23aa676 6112 if (!err)
f62fab73
JB		 6113 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6114 ssid, ssid_len, &req);
636a5d36 6115
636a5d36
JM		 6116 return err;
6117}
6118
6119static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6120{
4c476991
JB		 6121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6122 struct net_device *dev = info->user_ptr[1];
19957bb3 6123 const u8 *ie = NULL, *bssid;
4c476991 6124 int ie_len = 0;
19957bb3 6125 u16 reason_code;
d5cdfacb 6126 bool local_state_change;
636a5d36 6127
f4a11bb0
JB		 6128 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6129 return -EINVAL;
6130
6131 if (!info->attrs[NL80211_ATTR_MAC])
6132 return -EINVAL;
6133
6134 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6135 return -EINVAL;
6136
4c476991
JB		 6137 if (!rdev->ops->deauth)
6138 return -EOPNOTSUPP;
636a5d36 6139
074ac8df 6140 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6141 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6142 return -EOPNOTSUPP;
eec60b03 6143
19957bb3 6144 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6145
19957bb3
JB		 6146 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6147 if (reason_code == 0) {
f4a11bb0 6148 /* Reason Code 0 is reserved */
4c476991 6149 return -EINVAL;
255e737e 6150 }
636a5d36
JM		 6151
6152 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6153 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6154 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6155 }
6156
d5cdfacb
JM		 6157 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6158
4c476991
JB		 6159 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6160 local_state_change);
636a5d36
JM		 6161}
6162
6163static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6164{
4c476991
JB		 6165 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6166 struct net_device *dev = info->user_ptr[1];
19957bb3 6167 const u8 *ie = NULL, *bssid;
4c476991 6168 int ie_len = 0;
19957bb3 6169 u16 reason_code;
d5cdfacb 6170 bool local_state_change;
636a5d36 6171
f4a11bb0
JB		 6172 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6173 return -EINVAL;
6174
6175 if (!info->attrs[NL80211_ATTR_MAC])
6176 return -EINVAL;
6177
6178 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6179 return -EINVAL;
6180
4c476991
JB		 6181 if (!rdev->ops->disassoc)
6182 return -EOPNOTSUPP;
636a5d36 6183
074ac8df 6184 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6185 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6186 return -EOPNOTSUPP;
eec60b03 6187
19957bb3 6188 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6189
19957bb3
JB		 6190 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6191 if (reason_code == 0) {
f4a11bb0 6192 /* Reason Code 0 is reserved */
4c476991 6193 return -EINVAL;
255e737e 6194 }
636a5d36
JM		 6195
6196 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6197 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6198 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6199 }
6200
d5cdfacb
JM		 6201 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6202
4c476991
JB		 6203 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6204 local_state_change);
636a5d36
JM		 6205}
6206
dd5b4cc7
FF		 6207static bool
6208nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6209 int mcast_rate[IEEE80211_NUM_BANDS],
6210 int rateval)
6211{
6212 struct wiphy *wiphy = &rdev->wiphy;
6213 bool found = false;
6214 int band, i;
6215
6216 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6217 struct ieee80211_supported_band *sband;
6218
6219 sband = wiphy->bands[band];
6220 if (!sband)
6221 continue;
6222
6223 for (i = 0; i < sband->n_bitrates; i++) {
6224 if (sband->bitrates[i].bitrate == rateval) {
6225 mcast_rate[band] = i + 1;
6226 found = true;
6227 break;
6228 }
6229 }
6230 }
6231
6232 return found;
6233}
6234
04a773ad
JB		 6235static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6236{
4c476991
JB		 6237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6238 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6239 struct cfg80211_ibss_params ibss;
6240 struct wiphy *wiphy;
fffd0934 6241 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6242 int err;
6243
8e30bc55
JB		 6244 memset(&ibss, 0, sizeof(ibss));
6245
04a773ad
JB		 6246 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6247 return -EINVAL;
6248
683b6d3b 6249 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6250 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6251 return -EINVAL;
6252
8e30bc55
JB		 6253 ibss.beacon_interval = 100;
6254
6255 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6256 ibss.beacon_interval =
6257 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6258 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6259 return -EINVAL;
6260 }
6261
4c476991
JB		 6262 if (!rdev->ops->join_ibss)
6263 return -EOPNOTSUPP;
04a773ad 6264
4c476991
JB		 6265 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6266 return -EOPNOTSUPP;
04a773ad 6267
79c97e97 6268 wiphy = &rdev->wiphy;
04a773ad 6269
39193498 6270 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6271 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6272
6273 if (!is_valid_ether_addr(ibss.bssid))
6274 return -EINVAL;
6275 }
04a773ad
JB		 6276 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6277 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6278
6279 if (info->attrs[NL80211_ATTR_IE]) {
6280 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6281 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6282 }
6283
683b6d3b
JB		 6284 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6285 if (err)
6286 return err;
04a773ad 6287
683b6d3b 6288 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6289 return -EINVAL;
6290
db9c64cf
JB		 6291 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6292 return -EINVAL;
6293 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6294 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 6295 return -EINVAL;
db9c64cf 6296
04a773ad 6297 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6298 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6299
fbd2c8dc
TP		 6300 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6301 u8 *rates =
6302 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6303 int n_rates =
6304 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6305 struct ieee80211_supported_band *sband =
683b6d3b 6306 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6307
34850ab2
JB		 6308 err = ieee80211_get_ratemask(sband, rates, n_rates,
6309 &ibss.basic_rates);
6310 if (err)
6311 return err;
fbd2c8dc 6312 }
dd5b4cc7
FF		 6313
6314 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6315 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6316 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6317 return -EINVAL;
fbd2c8dc 6318
4c476991 6319 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6320 bool no_ht = false;
6321
4c476991 6322 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6323 info->attrs[NL80211_ATTR_KEYS],
6324 &no_ht);
4c476991
JB		 6325 if (IS_ERR(connkeys))
6326 return PTR_ERR(connkeys);
de7044ee 6327
3d9d1d66
JB		 6328 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6329 no_ht) {
de7044ee
SM		 6330 kfree(connkeys);
6331 return -EINVAL;
6332 }
4c476991 6333 }
04a773ad 6334
267335d6
AQ		 6335 ibss.control_port =
6336 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6337
4c476991 6338 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6339 if (err)
6340 kfree(connkeys);
04a773ad
JB		 6341 return err;
6342}
6343
6344static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6345{
4c476991
JB		 6346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6347 struct net_device *dev = info->user_ptr[1];
04a773ad 6348
4c476991
JB		 6349 if (!rdev->ops->leave_ibss)
6350 return -EOPNOTSUPP;
04a773ad 6351
4c476991
JB		 6352 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6353 return -EOPNOTSUPP;
04a773ad 6354
4c476991 6355 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6356}
6357
f4e583c8
AQ		 6358static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6359{
6360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6361 struct net_device *dev = info->user_ptr[1];
6362 int mcast_rate[IEEE80211_NUM_BANDS];
6363 u32 nla_rate;
6364 int err;
6365
6366 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6367 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6368 return -EOPNOTSUPP;
6369
6370 if (!rdev->ops->set_mcast_rate)
6371 return -EOPNOTSUPP;
6372
6373 memset(mcast_rate, 0, sizeof(mcast_rate));
6374
6375 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6376 return -EINVAL;
6377
6378 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6379 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6380 return -EINVAL;
6381
6382 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6383
6384 return err;
6385}
6386
6387
aff89a9b
JB		 6388#ifdef CONFIG_NL80211_TESTMODE
6389static struct genl_multicast_group nl80211_testmode_mcgrp = {
6390 .name = "testmode",
6391};
6392
6393static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6394{
4c476991 6395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6396 int err;
6397
6398 if (!info->attrs[NL80211_ATTR_TESTDATA])
6399 return -EINVAL;
6400
aff89a9b
JB		 6401 err = -EOPNOTSUPP;
6402 if (rdev->ops->testmode_cmd) {
6403 rdev->testmode_info = info;
e35e4d28 6404 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6405 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6406 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6407 rdev->testmode_info = NULL;
6408 }
6409
aff89a9b
JB		 6410 return err;
6411}
6412
71063f0e
WYG		 6413static int nl80211_testmode_dump(struct sk_buff *skb,
6414 struct netlink_callback *cb)
6415{
00918d33 6416 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6417 int err;
6418 long phy_idx;
6419 void *data = NULL;
6420 int data_len = 0;
6421
6422 if (cb->args[0]) {
6423 /*
6424 * 0 is a valid index, but not valid for args[0],
6425 * so we need to offset by 1.
6426 */
6427 phy_idx = cb->args[0] - 1;
6428 } else {
6429 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6430 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6431 nl80211_policy);
6432 if (err)
6433 return err;
00918d33 6434
2bd7e35d
JB		 6435 mutex_lock(&cfg80211_mutex);
6436 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6437 nl80211_fam.attrbuf);
6438 if (IS_ERR(rdev)) {
6439 mutex_unlock(&cfg80211_mutex);
6440 return PTR_ERR(rdev);
00918d33 6441 }
2bd7e35d
JB		 6442 phy_idx = rdev->wiphy_idx;
6443 rdev = NULL;
6444 mutex_unlock(&cfg80211_mutex);
6445
71063f0e
WYG		 6446 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6447 cb->args[1] =
6448 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6449 }
6450
6451 if (cb->args[1]) {
6452 data = nla_data((void *)cb->args[1]);
6453 data_len = nla_len((void *)cb->args[1]);
6454 }
6455
6456 mutex_lock(&cfg80211_mutex);
00918d33
JB		 6457 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6458 if (!rdev) {
71063f0e
WYG		 6459 mutex_unlock(&cfg80211_mutex);
6460 return -ENOENT;
6461 }
00918d33 6462 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 6463 mutex_unlock(&cfg80211_mutex);
6464
00918d33 6465 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6466 err = -EOPNOTSUPP;
6467 goto out_err;
6468 }
6469
6470 while (1) {
15e47304 6471 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6472 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6473 NL80211_CMD_TESTMODE);
6474 struct nlattr *tmdata;
6475
9360ffd1 6476 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6477 genlmsg_cancel(skb, hdr);
6478 break;
6479 }
6480
6481 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6482 if (!tmdata) {
6483 genlmsg_cancel(skb, hdr);
6484 break;
6485 }
e35e4d28 6486 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6487 nla_nest_end(skb, tmdata);
6488
6489 if (err == -ENOBUFS || err == -ENOENT) {
6490 genlmsg_cancel(skb, hdr);
6491 break;
6492 } else if (err) {
6493 genlmsg_cancel(skb, hdr);
6494 goto out_err;
6495 }
6496
6497 genlmsg_end(skb, hdr);
6498 }
6499
6500 err = skb->len;
6501 /* see above */
6502 cb->args[0] = phy_idx + 1;
6503 out_err:
00918d33 6504 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 6505 return err;
6506}
6507
aff89a9b
JB		 6508static struct sk_buff *
6509__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6510 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6511{
6512 struct sk_buff *skb;
6513 void *hdr;
6514 struct nlattr *data;
6515
6516 skb = nlmsg_new(approxlen + 100, gfp);
6517 if (!skb)
6518 return NULL;
6519
15e47304 6520 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6521 if (!hdr) {
6522 kfree_skb(skb);
6523 return NULL;
6524 }
6525
9360ffd1
DM		 6526 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6527 goto nla_put_failure;
aff89a9b
JB		 6528 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6529
6530 ((void **)skb->cb)[0] = rdev;
6531 ((void **)skb->cb)[1] = hdr;
6532 ((void **)skb->cb)[2] = data;
6533
6534 return skb;
6535
6536 nla_put_failure:
6537 kfree_skb(skb);
6538 return NULL;
6539}
6540
6541struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6542 int approxlen)
6543{
6544 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6545
6546 if (WARN_ON(!rdev->testmode_info))
6547 return NULL;
6548
6549 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6550 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6551 rdev->testmode_info->snd_seq,
6552 GFP_KERNEL);
6553}
6554EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6555
6556int cfg80211_testmode_reply(struct sk_buff *skb)
6557{
6558 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6559 void *hdr = ((void **)skb->cb)[1];
6560 struct nlattr *data = ((void **)skb->cb)[2];
6561
6562 if (WARN_ON(!rdev->testmode_info)) {
6563 kfree_skb(skb);
6564 return -EINVAL;
6565 }
6566
6567 nla_nest_end(skb, data);
6568 genlmsg_end(skb, hdr);
6569 return genlmsg_reply(skb, rdev->testmode_info);
6570}
6571EXPORT_SYMBOL(cfg80211_testmode_reply);
6572
6573struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6574 int approxlen, gfp_t gfp)
6575{
6576 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6577
6578 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6579}
6580EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6581
6582void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6583{
6584 void *hdr = ((void **)skb->cb)[1];
6585 struct nlattr *data = ((void **)skb->cb)[2];
6586
6587 nla_nest_end(skb, data);
6588 genlmsg_end(skb, hdr);
6589 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6590}
6591EXPORT_SYMBOL(cfg80211_testmode_event);
6592#endif
6593
b23aa676
SO		 6594static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6595{
4c476991
JB		 6596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6597 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6598 struct cfg80211_connect_params connect;
6599 struct wiphy *wiphy;
fffd0934 6600 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6601 int err;
6602
6603 memset(&connect, 0, sizeof(connect));
6604
6605 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6606 return -EINVAL;
6607
6608 if (!info->attrs[NL80211_ATTR_SSID] ||
6609 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6610 return -EINVAL;
6611
6612 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6613 connect.auth_type =
6614 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6615 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6616 NL80211_CMD_CONNECT))
b23aa676
SO		 6617 return -EINVAL;
6618 } else
6619 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6620
6621 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6622
c0692b8f 6623 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6624 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6625 if (err)
6626 return err;
b23aa676 6627
074ac8df 6628 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6629 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6630 return -EOPNOTSUPP;
b23aa676 6631
79c97e97 6632 wiphy = &rdev->wiphy;
b23aa676 6633
4486ea98
BS		 6634 connect.bg_scan_period = -1;
6635 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6636 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6637 connect.bg_scan_period =
6638 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6639 }
6640
b23aa676
SO		 6641 if (info->attrs[NL80211_ATTR_MAC])
6642 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6643 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6644 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6645
6646 if (info->attrs[NL80211_ATTR_IE]) {
6647 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6648 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6649 }
6650
cee00a95
JM		 6651 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6652 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6653 if (connect.mfp != NL80211_MFP_REQUIRED &&
6654 connect.mfp != NL80211_MFP_NO)
6655 return -EINVAL;
6656 } else {
6657 connect.mfp = NL80211_MFP_NO;
6658 }
6659
b23aa676
SO		 6660 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6661 connect.channel =
6662 ieee80211_get_channel(wiphy,
6663 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6664 if (!connect.channel ||
4c476991
JB		 6665 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6666 return -EINVAL;
b23aa676
SO		 6667 }
6668
fffd0934
JB		 6669 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6670 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6671 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6672 if (IS_ERR(connkeys))
6673 return PTR_ERR(connkeys);
fffd0934
JB		 6674 }
6675
7e7c8926
BG		 6676 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6677 connect.flags |= ASSOC_REQ_DISABLE_HT;
6678
6679 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6680 memcpy(&connect.ht_capa_mask,
6681 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6682 sizeof(connect.ht_capa_mask));
6683
6684 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6685 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6686 kfree(connkeys);
7e7c8926 6687 return -EINVAL;
b4e4f47e 6688 }
7e7c8926
BG		 6689 memcpy(&connect.ht_capa,
6690 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6691 sizeof(connect.ht_capa));
6692 }
6693
ee2aca34
JB		 6694 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6695 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6696
6697 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6698 memcpy(&connect.vht_capa_mask,
6699 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6700 sizeof(connect.vht_capa_mask));
6701
6702 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6703 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6704 kfree(connkeys);
6705 return -EINVAL;
6706 }
6707 memcpy(&connect.vht_capa,
6708 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6709 sizeof(connect.vht_capa));
6710 }
6711
fffd0934 6712 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 6713 if (err)
6714 kfree(connkeys);
b23aa676
SO		 6715 return err;
6716}
6717
6718static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6719{
4c476991
JB		 6720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6721 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6722 u16 reason;
6723
6724 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6725 reason = WLAN_REASON_DEAUTH_LEAVING;
6726 else
6727 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6728
6729 if (reason == 0)
6730 return -EINVAL;
6731
074ac8df 6732 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6733 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6734 return -EOPNOTSUPP;
b23aa676 6735
4c476991 6736 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 6737}
6738
463d0183
JB		 6739static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6740{
4c476991 6741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6742 struct net *net;
6743 int err;
6744 u32 pid;
6745
6746 if (!info->attrs[NL80211_ATTR_PID])
6747 return -EINVAL;
6748
6749 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6750
463d0183 6751 net = get_net_ns_by_pid(pid);
4c476991
JB		 6752 if (IS_ERR(net))
6753 return PTR_ERR(net);
463d0183
JB		 6754
6755 err = 0;
6756
6757 /* check if anything to do */
4c476991
JB		 6758 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6759 err = cfg80211_switch_netns(rdev, net);
463d0183 6760
463d0183 6761 put_net(net);
463d0183
JB		 6762 return err;
6763}
6764
67fbb16b
SO		 6765static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6766{
4c476991 6767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6768 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6769 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6770 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6771 struct cfg80211_pmksa pmksa;
6772
6773 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6774
6775 if (!info->attrs[NL80211_ATTR_MAC])
6776 return -EINVAL;
6777
6778 if (!info->attrs[NL80211_ATTR_PMKID])
6779 return -EINVAL;
6780
67fbb16b
SO		 6781 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6782 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6783
074ac8df 6784 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6785 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6786 return -EOPNOTSUPP;
67fbb16b
SO		 6787
6788 switch (info->genlhdr->cmd) {
6789 case NL80211_CMD_SET_PMKSA:
6790 rdev_ops = rdev->ops->set_pmksa;
6791 break;
6792 case NL80211_CMD_DEL_PMKSA:
6793 rdev_ops = rdev->ops->del_pmksa;
6794 break;
6795 default:
6796 WARN_ON(1);
6797 break;
6798 }
6799
4c476991
JB		 6800 if (!rdev_ops)
6801 return -EOPNOTSUPP;
67fbb16b 6802
4c476991 6803 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6804}
6805
6806static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6807{
4c476991
JB		 6808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6809 struct net_device *dev = info->user_ptr[1];
67fbb16b 6810
074ac8df 6811 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6812 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6813 return -EOPNOTSUPP;
67fbb16b 6814
4c476991
JB		 6815 if (!rdev->ops->flush_pmksa)
6816 return -EOPNOTSUPP;
67fbb16b 6817
e35e4d28 6818 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6819}
6820
109086ce
AN		 6821static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6822{
6823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6824 struct net_device *dev = info->user_ptr[1];
6825 u8 action_code, dialog_token;
6826 u16 status_code;
6827 u8 *peer;
6828
6829 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6830 !rdev->ops->tdls_mgmt)
6831 return -EOPNOTSUPP;
6832
6833 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6834 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6835 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6836 !info->attrs[NL80211_ATTR_IE] ||
6837 !info->attrs[NL80211_ATTR_MAC])
6838 return -EINVAL;
6839
6840 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6841 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6842 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6843 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6844
e35e4d28
HG		 6845 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6846 dialog_token, status_code,
6847 nla_data(info->attrs[NL80211_ATTR_IE]),
6848 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6849}
6850
6851static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6852{
6853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6854 struct net_device *dev = info->user_ptr[1];
6855 enum nl80211_tdls_operation operation;
6856 u8 *peer;
6857
6858 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6859 !rdev->ops->tdls_oper)
6860 return -EOPNOTSUPP;
6861
6862 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6863 !info->attrs[NL80211_ATTR_MAC])
6864 return -EINVAL;
6865
6866 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6867 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6868
e35e4d28 6869 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6870}
6871
9588bbd5
JM		 6872static int nl80211_remain_on_channel(struct sk_buff *skb,
6873 struct genl_info *info)
6874{
4c476991 6875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6876 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6877 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6878 struct sk_buff *msg;
6879 void *hdr;
6880 u64 cookie;
683b6d3b 6881 u32 duration;
9588bbd5
JM		 6882 int err;
6883
6884 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6885 !info->attrs[NL80211_ATTR_DURATION])
6886 return -EINVAL;
6887
6888 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6889
ebf348fc
JB		 6890 if (!rdev->ops->remain_on_channel ||
6891 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6892 return -EOPNOTSUPP;
6893
9588bbd5 6894 /*
ebf348fc
JB		 6895 * We should be on that channel for at least a minimum amount of
6896 * time (10ms) but no longer than the driver supports.
9588bbd5 6897 */
ebf348fc 6898 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6899 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6900 return -EINVAL;
6901
683b6d3b
JB		 6902 err = nl80211_parse_chandef(rdev, info, &chandef);
6903 if (err)
6904 return err;
9588bbd5
JM		 6905
6906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6907 if (!msg)
6908 return -ENOMEM;
9588bbd5 6909
15e47304 6910 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6911 NL80211_CMD_REMAIN_ON_CHANNEL);
6912
6913 if (IS_ERR(hdr)) {
6914 err = PTR_ERR(hdr);
6915 goto free_msg;
6916 }
6917
683b6d3b
JB		 6918 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6919 duration, &cookie);
9588bbd5
JM		 6920
6921 if (err)
6922 goto free_msg;
6923
9360ffd1
DM		 6924 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6925 goto nla_put_failure;
9588bbd5
JM		 6926
6927 genlmsg_end(msg, hdr);
4c476991
JB		 6928
6929 return genlmsg_reply(msg, info);
9588bbd5
JM		 6930
6931 nla_put_failure:
6932 err = -ENOBUFS;
6933 free_msg:
6934 nlmsg_free(msg);
9588bbd5
JM		 6935 return err;
6936}
6937
6938static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6939 struct genl_info *info)
6940{
4c476991 6941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6942 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6943 u64 cookie;
9588bbd5
JM		 6944
6945 if (!info->attrs[NL80211_ATTR_COOKIE])
6946 return -EINVAL;
6947
4c476991
JB		 6948 if (!rdev->ops->cancel_remain_on_channel)
6949 return -EOPNOTSUPP;
9588bbd5 6950
9588bbd5
JM		 6951 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6952
e35e4d28 6953 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6954}
6955
13ae75b1
JM		 6956static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6957 u8 *rates, u8 rates_len)
6958{
6959 u8 i;
6960 u32 mask = 0;
6961
6962 for (i = 0; i < rates_len; i++) {
6963 int rate = (rates[i] & 0x7f) * 5;
6964 int ridx;
6965 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6966 struct ieee80211_rate *srate =
6967 &sband->bitrates[ridx];
6968 if (rate == srate->bitrate) {
6969 mask |= 1 << ridx;
6970 break;
6971 }
6972 }
6973 if (ridx == sband->n_bitrates)
6974 return 0; /* rate not found */
6975 }
6976
6977 return mask;
6978}
6979
24db78c0
SW		 6980static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6981 u8 *rates, u8 rates_len,
6982 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6983{
6984 u8 i;
6985
6986 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6987
6988 for (i = 0; i < rates_len; i++) {
6989 int ridx, rbit;
6990
6991 ridx = rates[i] / 8;
6992 rbit = BIT(rates[i] % 8);
6993
6994 /* check validity */
910570b5 6995 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6996 return false;
6997
6998 /* check availability */
6999 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7000 mcs[ridx] |= rbit;
7001 else
7002 return false;
7003 }
7004
7005 return true;
7006}
7007
b54452b0 7008static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7009 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7010 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 7011 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7012 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7013};
7014
7015static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7016 struct genl_info *info)
7017{
7018 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7020 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7021 int rem, i;
7022 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7023 struct nlattr *tx_rates;
7024 struct ieee80211_supported_band *sband;
7025
7026 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7027 return -EINVAL;
7028
4c476991
JB		 7029 if (!rdev->ops->set_bitrate_mask)
7030 return -EOPNOTSUPP;
13ae75b1
JM		 7031
7032 memset(&mask, 0, sizeof(mask));
7033 /* Default to all rates enabled */
7034 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7035 sband = rdev->wiphy.bands[i];
7036 mask.control[i].legacy =
7037 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7038 if (sband)
7039 memcpy(mask.control[i].mcs,
7040 sband->ht_cap.mcs.rx_mask,
7041 sizeof(mask.control[i].mcs));
7042 else
7043 memset(mask.control[i].mcs, 0,
7044 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7045 }
7046
7047 /*
7048 * The nested attribute uses enum nl80211_band as the index. This maps
7049 * directly to the enum ieee80211_band values used in cfg80211.
7050 */
24db78c0 7051 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7052 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7053 {
7054 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7055 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7056 return -EINVAL;
13ae75b1 7057 sband = rdev->wiphy.bands[band];
4c476991
JB		 7058 if (sband == NULL)
7059 return -EINVAL;
13ae75b1
JM		 7060 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7061 nla_len(tx_rates), nl80211_txattr_policy);
7062 if (tb[NL80211_TXRATE_LEGACY]) {
7063 mask.control[band].legacy = rateset_to_mask(
7064 sband,
7065 nla_data(tb[NL80211_TXRATE_LEGACY]),
7066 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7067 if ((mask.control[band].legacy == 0) &&
7068 nla_len(tb[NL80211_TXRATE_LEGACY]))
7069 return -EINVAL;
24db78c0
SW		 7070 }
7071 if (tb[NL80211_TXRATE_MCS]) {
7072 if (!ht_rateset_to_mask(
7073 sband,
7074 nla_data(tb[NL80211_TXRATE_MCS]),
7075 nla_len(tb[NL80211_TXRATE_MCS]),
7076 mask.control[band].mcs))
7077 return -EINVAL;
7078 }
7079
7080 if (mask.control[band].legacy == 0) {
7081 /* don't allow empty legacy rates if HT
7082 * is not even supported. */
7083 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7084 return -EINVAL;
7085
7086 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7087 if (mask.control[band].mcs[i])
7088 break;
7089
7090 /* legacy and mcs rates may not be both empty */
7091 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7092 return -EINVAL;
13ae75b1
JM		 7093 }
7094 }
7095
e35e4d28 7096 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7097}
7098
2e161f78 7099static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7100{
4c476991 7101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7102 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7103 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7104
7105 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7106 return -EINVAL;
7107
2e161f78
JB		 7108 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7109 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7110
71bbc994
JB		 7111 switch (wdev->iftype) {
7112 case NL80211_IFTYPE_STATION:
7113 case NL80211_IFTYPE_ADHOC:
7114 case NL80211_IFTYPE_P2P_CLIENT:
7115 case NL80211_IFTYPE_AP:
7116 case NL80211_IFTYPE_AP_VLAN:
7117 case NL80211_IFTYPE_MESH_POINT:
7118 case NL80211_IFTYPE_P2P_GO:
98104fde 7119 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7120 break;
7121 default:
4c476991 7122 return -EOPNOTSUPP;
71bbc994 7123 }
026331c4
JM		 7124
7125 /* not much point in registering if we can't reply */
4c476991
JB		 7126 if (!rdev->ops->mgmt_tx)
7127 return -EOPNOTSUPP;
026331c4 7128
15e47304 7129 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7130 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7131 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7132}
7133
2e161f78 7134static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7135{
4c476991 7136 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7137 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7138 struct cfg80211_chan_def chandef;
026331c4 7139 int err;
d64d373f 7140 void *hdr = NULL;
026331c4 7141 u64 cookie;
e247bd90 7142 struct sk_buff *msg = NULL;
f7ca38df 7143 unsigned int wait = 0;
e247bd90
JB		 7144 bool offchan, no_cck, dont_wait_for_ack;
7145
7146 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7147
683b6d3b 7148 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7149 return -EINVAL;
7150
4c476991
JB		 7151 if (!rdev->ops->mgmt_tx)
7152 return -EOPNOTSUPP;
026331c4 7153
71bbc994
JB		 7154 switch (wdev->iftype) {
7155 case NL80211_IFTYPE_STATION:
7156 case NL80211_IFTYPE_ADHOC:
7157 case NL80211_IFTYPE_P2P_CLIENT:
7158 case NL80211_IFTYPE_AP:
7159 case NL80211_IFTYPE_AP_VLAN:
7160 case NL80211_IFTYPE_MESH_POINT:
7161 case NL80211_IFTYPE_P2P_GO:
98104fde 7162 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7163 break;
7164 default:
4c476991 7165 return -EOPNOTSUPP;
71bbc994 7166 }
026331c4 7167
f7ca38df 7168 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7169 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7170 return -EINVAL;
7171 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7172
7173 /*
7174 * We should wait on the channel for at least a minimum amount
7175 * of time (10ms) but no longer than the driver supports.
7176 */
7177 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7178 wait > rdev->wiphy.max_remain_on_channel_duration)
7179 return -EINVAL;
7180
f7ca38df
JB		 7181 }
7182
f7ca38df
JB		 7183 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7184
7c4ef712
JB		 7185 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7186 return -EINVAL;
7187
e9f935e3
RM		 7188 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7189
683b6d3b
JB		 7190 err = nl80211_parse_chandef(rdev, info, &chandef);
7191 if (err)
7192 return err;
026331c4 7193
e247bd90
JB		 7194 if (!dont_wait_for_ack) {
7195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7196 if (!msg)
7197 return -ENOMEM;
026331c4 7198
15e47304 7199 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7200 NL80211_CMD_FRAME);
026331c4 7201
e247bd90
JB		 7202 if (IS_ERR(hdr)) {
7203 err = PTR_ERR(hdr);
7204 goto free_msg;
7205 }
026331c4 7206 }
e247bd90 7207
683b6d3b 7208 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7209 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7210 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7211 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7212 if (err)
7213 goto free_msg;
7214
e247bd90 7215 if (msg) {
9360ffd1
DM		 7216 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7217 goto nla_put_failure;
026331c4 7218
e247bd90
JB		 7219 genlmsg_end(msg, hdr);
7220 return genlmsg_reply(msg, info);
7221 }
7222
7223 return 0;
026331c4
JM		 7224
7225 nla_put_failure:
7226 err = -ENOBUFS;
7227 free_msg:
7228 nlmsg_free(msg);
026331c4
JM		 7229 return err;
7230}
7231
f7ca38df
JB		 7232static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7233{
7234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7235 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7236 u64 cookie;
7237
7238 if (!info->attrs[NL80211_ATTR_COOKIE])
7239 return -EINVAL;
7240
7241 if (!rdev->ops->mgmt_tx_cancel_wait)
7242 return -EOPNOTSUPP;
7243
71bbc994
JB		 7244 switch (wdev->iftype) {
7245 case NL80211_IFTYPE_STATION:
7246 case NL80211_IFTYPE_ADHOC:
7247 case NL80211_IFTYPE_P2P_CLIENT:
7248 case NL80211_IFTYPE_AP:
7249 case NL80211_IFTYPE_AP_VLAN:
7250 case NL80211_IFTYPE_P2P_GO:
98104fde 7251 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7252 break;
7253 default:
f7ca38df 7254 return -EOPNOTSUPP;
71bbc994 7255 }
f7ca38df
JB		 7256
7257 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7258
e35e4d28 7259 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7260}
7261
ffb9eb3d
KV		 7262static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7263{
4c476991 7264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7265 struct wireless_dev *wdev;
4c476991 7266 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7267 u8 ps_state;
7268 bool state;
7269 int err;
7270
4c476991
JB		 7271 if (!info->attrs[NL80211_ATTR_PS_STATE])
7272 return -EINVAL;
ffb9eb3d
KV		 7273
7274 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7275
4c476991
JB		 7276 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7277 return -EINVAL;
ffb9eb3d
KV		 7278
7279 wdev = dev->ieee80211_ptr;
7280
4c476991
JB		 7281 if (!rdev->ops->set_power_mgmt)
7282 return -EOPNOTSUPP;
ffb9eb3d
KV		 7283
7284 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7285
7286 if (state == wdev->ps)
4c476991 7287 return 0;
ffb9eb3d 7288
e35e4d28 7289 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7290 if (!err)
7291 wdev->ps = state;
ffb9eb3d
KV		 7292 return err;
7293}
7294
7295static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7296{
4c476991 7297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7298 enum nl80211_ps_state ps_state;
7299 struct wireless_dev *wdev;
4c476991 7300 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7301 struct sk_buff *msg;
7302 void *hdr;
7303 int err;
7304
ffb9eb3d
KV		 7305 wdev = dev->ieee80211_ptr;
7306
4c476991
JB		 7307 if (!rdev->ops->set_power_mgmt)
7308 return -EOPNOTSUPP;
ffb9eb3d
KV		 7309
7310 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7311 if (!msg)
7312 return -ENOMEM;
ffb9eb3d 7313
15e47304 7314 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7315 NL80211_CMD_GET_POWER_SAVE);
7316 if (!hdr) {
4c476991 7317 err = -ENOBUFS;
ffb9eb3d
KV		 7318 goto free_msg;
7319 }
7320
7321 if (wdev->ps)
7322 ps_state = NL80211_PS_ENABLED;
7323 else
7324 ps_state = NL80211_PS_DISABLED;
7325
9360ffd1
DM		 7326 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7327 goto nla_put_failure;
ffb9eb3d
KV		 7328
7329 genlmsg_end(msg, hdr);
4c476991 7330 return genlmsg_reply(msg, info);
ffb9eb3d 7331
4c476991 7332 nla_put_failure:
ffb9eb3d 7333 err = -ENOBUFS;
4c476991 7334 free_msg:
ffb9eb3d 7335 nlmsg_free(msg);
ffb9eb3d
KV		 7336 return err;
7337}
7338
d6dc1a38
JO		 7339static struct nla_policy
7340nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7341 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7342 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7343 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7344 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7345 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7346 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7347};
7348
84f10708 7349static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7350 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7351{
7352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7353 struct wireless_dev *wdev;
7354 struct net_device *dev = info->user_ptr[1];
7355
d9d8b019 7356 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7357 return -EINVAL;
7358
7359 wdev = dev->ieee80211_ptr;
7360
7361 if (!rdev->ops->set_cqm_txe_config)
7362 return -EOPNOTSUPP;
7363
7364 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7365 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7366 return -EOPNOTSUPP;
7367
e35e4d28 7368 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7369}
7370
d6dc1a38
JO		 7371static int nl80211_set_cqm_rssi(struct genl_info *info,
7372 s32 threshold, u32 hysteresis)
7373{
4c476991 7374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7375 struct wireless_dev *wdev;
4c476991 7376 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7377
7378 if (threshold > 0)
7379 return -EINVAL;
7380
d6dc1a38
JO		 7381 wdev = dev->ieee80211_ptr;
7382
4c476991
JB		 7383 if (!rdev->ops->set_cqm_rssi_config)
7384 return -EOPNOTSUPP;
d6dc1a38 7385
074ac8df 7386 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7387 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7388 return -EOPNOTSUPP;
d6dc1a38 7389
e35e4d28 7390 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7391}
7392
7393static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7394{
7395 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7396 struct nlattr *cqm;
7397 int err;
7398
7399 cqm = info->attrs[NL80211_ATTR_CQM];
7400 if (!cqm) {
7401 err = -EINVAL;
7402 goto out;
7403 }
7404
7405 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7406 nl80211_attr_cqm_policy);
7407 if (err)
7408 goto out;
7409
7410 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7411 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7412 s32 threshold;
7413 u32 hysteresis;
7414 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7415 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7416 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7417 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7418 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7419 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7420 u32 rate, pkts, intvl;
7421 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7422 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7423 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7424 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7425 } else
7426 err = -EINVAL;
7427
7428out:
7429 return err;
7430}
7431
29cbe68c
JB		 7432static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7433{
7434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7435 struct net_device *dev = info->user_ptr[1];
7436 struct mesh_config cfg;
c80d545d 7437 struct mesh_setup setup;
29cbe68c
JB		 7438 int err;
7439
7440 /* start with default */
7441 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7442 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7443
24bdd9f4 7444 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7445 /* and parse parameters if given */
24bdd9f4 7446 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7447 if (err)
7448 return err;
7449 }
7450
7451 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7452 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7453 return -EINVAL;
7454
c80d545d
JC		 7455 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7456 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7457
4bb62344
CYY		 7458 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7459 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7460 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7461 return -EINVAL;
7462
9bdbf04d
MP		 7463 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7464 setup.beacon_interval =
7465 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7466 if (setup.beacon_interval < 10 ||
7467 setup.beacon_interval > 10000)
7468 return -EINVAL;
7469 }
7470
7471 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7472 setup.dtim_period =
7473 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7474 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7475 return -EINVAL;
7476 }
7477
c80d545d
JC		 7478 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7479 /* parse additional setup parameters if given */
7480 err = nl80211_parse_mesh_setup(info, &setup);
7481 if (err)
7482 return err;
7483 }
7484
d37bb18a
TP		 7485 if (setup.user_mpm)
7486 cfg.auto_open_plinks = false;
7487
cc1d2806 7488 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7489 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7490 if (err)
7491 return err;
cc1d2806
JB		 7492 } else {
7493 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7494 setup.chandef.chan = NULL;
cc1d2806
JB		 7495 }
7496
c80d545d 7497 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7498}
7499
7500static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7501{
7502 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7503 struct net_device *dev = info->user_ptr[1];
7504
7505 return cfg80211_leave_mesh(rdev, dev);
7506}
7507
dfb89c56 7508#ifdef CONFIG_PM
bb92d199
AK		 7509static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7510 struct cfg80211_registered_device *rdev)
7511{
7512 struct nlattr *nl_pats, *nl_pat;
7513 int i, pat_len;
7514
7515 if (!rdev->wowlan->n_patterns)
7516 return 0;
7517
7518 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7519 if (!nl_pats)
7520 return -ENOBUFS;
7521
7522 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7523 nl_pat = nla_nest_start(msg, i + 1);
7524 if (!nl_pat)
7525 return -ENOBUFS;
7526 pat_len = rdev->wowlan->patterns[i].pattern_len;
7527 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7528 DIV_ROUND_UP(pat_len, 8),
7529 rdev->wowlan->patterns[i].mask) ||
7530 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7531 pat_len, rdev->wowlan->patterns[i].pattern) ||
7532 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7533 rdev->wowlan->patterns[i].pkt_offset))
7534 return -ENOBUFS;
7535 nla_nest_end(msg, nl_pat);
7536 }
7537 nla_nest_end(msg, nl_pats);
7538
7539 return 0;
7540}
7541
2a0e047e
JB		 7542static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7543 struct cfg80211_wowlan_tcp *tcp)
7544{
7545 struct nlattr *nl_tcp;
7546
7547 if (!tcp)
7548 return 0;
7549
7550 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7551 if (!nl_tcp)
7552 return -ENOBUFS;
7553
7554 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7555 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7556 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7557 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7558 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7559 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7560 tcp->payload_len, tcp->payload) ||
7561 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7562 tcp->data_interval) ||
7563 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7564 tcp->wake_len, tcp->wake_data) ||
7565 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7566 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7567 return -ENOBUFS;
7568
7569 if (tcp->payload_seq.len &&
7570 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7571 sizeof(tcp->payload_seq), &tcp->payload_seq))
7572 return -ENOBUFS;
7573
7574 if (tcp->payload_tok.len &&
7575 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7576 sizeof(tcp->payload_tok) + tcp->tokens_size,
7577 &tcp->payload_tok))
7578 return -ENOBUFS;
7579
7580 return 0;
7581}
7582
ff1b6e69
JB		 7583static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7584{
7585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7586 struct sk_buff *msg;
7587 void *hdr;
2a0e047e 7588 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7589
2a0e047e
JB		 7590 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7591 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7592 return -EOPNOTSUPP;
7593
2a0e047e
JB		 7594 if (rdev->wowlan && rdev->wowlan->tcp) {
7595 /* adjust size to have room for all the data */
7596 size += rdev->wowlan->tcp->tokens_size +
7597 rdev->wowlan->tcp->payload_len +
7598 rdev->wowlan->tcp->wake_len +
7599 rdev->wowlan->tcp->wake_len / 8;
7600 }
7601
7602 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7603 if (!msg)
7604 return -ENOMEM;
7605
15e47304 7606 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7607 NL80211_CMD_GET_WOWLAN);
7608 if (!hdr)
7609 goto nla_put_failure;
7610
7611 if (rdev->wowlan) {
7612 struct nlattr *nl_wowlan;
7613
7614 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7615 if (!nl_wowlan)
7616 goto nla_put_failure;
7617
9360ffd1
DM		 7618 if ((rdev->wowlan->any &&
7619 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7620 (rdev->wowlan->disconnect &&
7621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7622 (rdev->wowlan->magic_pkt &&
7623 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7624 (rdev->wowlan->gtk_rekey_failure &&
7625 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7626 (rdev->wowlan->eap_identity_req &&
7627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7628 (rdev->wowlan->four_way_handshake &&
7629 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7630 (rdev->wowlan->rfkill_release &&
7631 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7632 goto nla_put_failure;
2a0e047e 7633
bb92d199
AK		 7634 if (nl80211_send_wowlan_patterns(msg, rdev))
7635 goto nla_put_failure;
2a0e047e
JB		 7636
7637 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7638 goto nla_put_failure;
7639
ff1b6e69
JB		 7640 nla_nest_end(msg, nl_wowlan);
7641 }
7642
7643 genlmsg_end(msg, hdr);
7644 return genlmsg_reply(msg, info);
7645
7646nla_put_failure:
7647 nlmsg_free(msg);
7648 return -ENOBUFS;
7649}
7650
2a0e047e
JB		 7651static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7652 struct nlattr *attr,
7653 struct cfg80211_wowlan *trig)
7654{
7655 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7656 struct cfg80211_wowlan_tcp *cfg;
7657 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7658 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7659 u32 size;
7660 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7661 int err, port;
7662
7663 if (!rdev->wiphy.wowlan.tcp)
7664 return -EINVAL;
7665
7666 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7667 nla_data(attr), nla_len(attr),
7668 nl80211_wowlan_tcp_policy);
7669 if (err)
7670 return err;
7671
7672 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7673 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7674 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7675 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7676 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7677 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7678 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7679 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7680 return -EINVAL;
7681
7682 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7683 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7684 return -EINVAL;
7685
7686 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
723d568a
JB		 7687 rdev->wiphy.wowlan.tcp->data_interval_max ||
7688 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7689 return -EINVAL;
7690
7691 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7692 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7693 return -EINVAL;
7694
7695 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7696 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7697 return -EINVAL;
7698
7699 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7700 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7701
7702 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7703 tokens_size = tokln - sizeof(*tok);
7704
7705 if (!tok->len || tokens_size % tok->len)
7706 return -EINVAL;
7707 if (!rdev->wiphy.wowlan.tcp->tok)
7708 return -EINVAL;
7709 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7710 return -EINVAL;
7711 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7712 return -EINVAL;
7713 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7714 return -EINVAL;
7715 if (tok->offset + tok->len > data_size)
7716 return -EINVAL;
7717 }
7718
7719 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7720 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7721 if (!rdev->wiphy.wowlan.tcp->seq)
7722 return -EINVAL;
7723 if (seq->len == 0 || seq->len > 4)
7724 return -EINVAL;
7725 if (seq->len + seq->offset > data_size)
7726 return -EINVAL;
7727 }
7728
7729 size = sizeof(*cfg);
7730 size += data_size;
7731 size += wake_size + wake_mask_size;
7732 size += tokens_size;
7733
7734 cfg = kzalloc(size, GFP_KERNEL);
7735 if (!cfg)
7736 return -ENOMEM;
7737 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7738 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7739 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7740 ETH_ALEN);
7741 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7742 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7743 else
7744 port = 0;
7745#ifdef CONFIG_INET
7746 /* allocate a socket and port for it and use it */
7747 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7748 IPPROTO_TCP, &cfg->sock, 1);
7749 if (err) {
7750 kfree(cfg);
7751 return err;
7752 }
7753 if (inet_csk_get_port(cfg->sock->sk, port)) {
7754 sock_release(cfg->sock);
7755 kfree(cfg);
7756 return -EADDRINUSE;
7757 }
7758 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7759#else
7760 if (!port) {
7761 kfree(cfg);
7762 return -EINVAL;
7763 }
7764 cfg->src_port = port;
7765#endif
7766
7767 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7768 cfg->payload_len = data_size;
7769 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7770 memcpy((void *)cfg->payload,
7771 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7772 data_size);
7773 if (seq)
7774 cfg->payload_seq = *seq;
7775 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7776 cfg->wake_len = wake_size;
7777 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7778 memcpy((void *)cfg->wake_data,
7779 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7780 wake_size);
7781 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7782 data_size + wake_size;
7783 memcpy((void *)cfg->wake_mask,
7784 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7785 wake_mask_size);
7786 if (tok) {
7787 cfg->tokens_size = tokens_size;
7788 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7789 }
7790
7791 trig->tcp = cfg;
7792
7793 return 0;
7794}
7795
ff1b6e69
JB		 7796static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7797{
7798 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7799 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7800 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7801 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7802 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7803 int err, i;
6d52563f 7804 bool prev_enabled = rdev->wowlan;
ff1b6e69 7805
2a0e047e
JB		 7806 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7807 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7808 return -EOPNOTSUPP;
7809
ae33bd81
JB		 7810 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7811 cfg80211_rdev_free_wowlan(rdev);
7812 rdev->wowlan = NULL;
7813 goto set_wakeup;
7814 }
ff1b6e69
JB		 7815
7816 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7817 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7818 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7819 nl80211_wowlan_policy);
7820 if (err)
7821 return err;
7822
7823 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7824 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7825 return -EINVAL;
7826 new_triggers.any = true;
7827 }
7828
7829 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7830 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7831 return -EINVAL;
7832 new_triggers.disconnect = true;
7833 }
7834
7835 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7836 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7837 return -EINVAL;
7838 new_triggers.magic_pkt = true;
7839 }
7840
77dbbb13
JB		 7841 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7842 return -EINVAL;
7843
7844 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7845 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7846 return -EINVAL;
7847 new_triggers.gtk_rekey_failure = true;
7848 }
7849
7850 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7851 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7852 return -EINVAL;
7853 new_triggers.eap_identity_req = true;
7854 }
7855
7856 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7857 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7858 return -EINVAL;
7859 new_triggers.four_way_handshake = true;
7860 }
7861
7862 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7863 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7864 return -EINVAL;
7865 new_triggers.rfkill_release = true;
7866 }
7867
ff1b6e69
JB		 7868 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7869 struct nlattr *pat;
7870 int n_patterns = 0;
bb92d199 7871 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7872 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7873
7874 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7875 rem)
7876 n_patterns++;
7877 if (n_patterns > wowlan->n_patterns)
7878 return -EINVAL;
7879
7880 new_triggers.patterns = kcalloc(n_patterns,
7881 sizeof(new_triggers.patterns[0]),
7882 GFP_KERNEL);
7883 if (!new_triggers.patterns)
7884 return -ENOMEM;
7885
7886 new_triggers.n_patterns = n_patterns;
7887 i = 0;
7888
7889 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7890 rem) {
7891 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7892 nla_data(pat), nla_len(pat), NULL);
7893 err = -EINVAL;
7894 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7895 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7896 goto error;
7897 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7898 mask_len = DIV_ROUND_UP(pat_len, 8);
7899 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7900 mask_len)
7901 goto error;
7902 if (pat_len > wowlan->pattern_max_len ||
7903 pat_len < wowlan->pattern_min_len)
7904 goto error;
7905
bb92d199
AK		 7906 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7907 pkt_offset = 0;
7908 else
7909 pkt_offset = nla_get_u32(
7910 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7911 if (pkt_offset > wowlan->max_pkt_offset)
7912 goto error;
7913 new_triggers.patterns[i].pkt_offset = pkt_offset;
7914
ff1b6e69
JB		 7915 new_triggers.patterns[i].mask =
7916 kmalloc(mask_len + pat_len, GFP_KERNEL);
7917 if (!new_triggers.patterns[i].mask) {
7918 err = -ENOMEM;
7919 goto error;
7920 }
7921 new_triggers.patterns[i].pattern =
7922 new_triggers.patterns[i].mask + mask_len;
7923 memcpy(new_triggers.patterns[i].mask,
7924 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7925 mask_len);
7926 new_triggers.patterns[i].pattern_len = pat_len;
7927 memcpy(new_triggers.patterns[i].pattern,
7928 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7929 pat_len);
7930 i++;
7931 }
7932 }
7933
2a0e047e
JB		 7934 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7935 err = nl80211_parse_wowlan_tcp(
7936 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7937 &new_triggers);
7938 if (err)
7939 goto error;
7940 }
7941
ae33bd81
JB		 7942 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7943 if (!ntrig) {
7944 err = -ENOMEM;
7945 goto error;
ff1b6e69 7946 }
ae33bd81
JB		 7947 cfg80211_rdev_free_wowlan(rdev);
7948 rdev->wowlan = ntrig;
ff1b6e69 7949
ae33bd81 7950 set_wakeup:
6d52563f 7951 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 7952 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 7953
ff1b6e69
JB		 7954 return 0;
7955 error:
7956 for (i = 0; i < new_triggers.n_patterns; i++)
7957 kfree(new_triggers.patterns[i].mask);
7958 kfree(new_triggers.patterns);
2a0e047e
JB		 7959 if (new_triggers.tcp && new_triggers.tcp->sock)
7960 sock_release(new_triggers.tcp->sock);
7961 kfree(new_triggers.tcp);
ff1b6e69
JB		 7962 return err;
7963}
dfb89c56 7964#endif
ff1b6e69 7965
e5497d76
JB		 7966static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7967{
7968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7969 struct net_device *dev = info->user_ptr[1];
7970 struct wireless_dev *wdev = dev->ieee80211_ptr;
7971 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7972 struct cfg80211_gtk_rekey_data rekey_data;
7973 int err;
7974
7975 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7976 return -EINVAL;
7977
7978 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7979 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7980 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7981 nl80211_rekey_policy);
7982 if (err)
7983 return err;
7984
7985 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7986 return -ERANGE;
7987 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7988 return -ERANGE;
7989 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7990 return -ERANGE;
7991
7992 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7993 NL80211_KEK_LEN);
7994 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7995 NL80211_KCK_LEN);
7996 memcpy(rekey_data.replay_ctr,
7997 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7998 NL80211_REPLAY_CTR_LEN);
7999
8000 wdev_lock(wdev);
8001 if (!wdev->current_bss) {
8002 err = -ENOTCONN;
8003 goto out;
8004 }
8005
8006 if (!rdev->ops->set_rekey_data) {
8007 err = -EOPNOTSUPP;
8008 goto out;
8009 }
8010
e35e4d28 8011 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8012 out:
8013 wdev_unlock(wdev);
8014 return err;
8015}
8016
28946da7
JB		 8017static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8018 struct genl_info *info)
8019{
8020 struct net_device *dev = info->user_ptr[1];
8021 struct wireless_dev *wdev = dev->ieee80211_ptr;
8022
8023 if (wdev->iftype != NL80211_IFTYPE_AP &&
8024 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8025 return -EINVAL;
8026
15e47304 8027 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8028 return -EBUSY;
8029
15e47304 8030 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8031 return 0;
8032}
8033
7f6cf311
JB		 8034static int nl80211_probe_client(struct sk_buff *skb,
8035 struct genl_info *info)
8036{
8037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8038 struct net_device *dev = info->user_ptr[1];
8039 struct wireless_dev *wdev = dev->ieee80211_ptr;
8040 struct sk_buff *msg;
8041 void *hdr;
8042 const u8 *addr;
8043 u64 cookie;
8044 int err;
8045
8046 if (wdev->iftype != NL80211_IFTYPE_AP &&
8047 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8048 return -EOPNOTSUPP;
8049
8050 if (!info->attrs[NL80211_ATTR_MAC])
8051 return -EINVAL;
8052
8053 if (!rdev->ops->probe_client)
8054 return -EOPNOTSUPP;
8055
8056 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8057 if (!msg)
8058 return -ENOMEM;
8059
15e47304 8060 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8061 NL80211_CMD_PROBE_CLIENT);
8062
8063 if (IS_ERR(hdr)) {
8064 err = PTR_ERR(hdr);
8065 goto free_msg;
8066 }
8067
8068 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8069
e35e4d28 8070 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8071 if (err)
8072 goto free_msg;
8073
9360ffd1
DM		 8074 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8075 goto nla_put_failure;
7f6cf311
JB		 8076
8077 genlmsg_end(msg, hdr);
8078
8079 return genlmsg_reply(msg, info);
8080
8081 nla_put_failure:
8082 err = -ENOBUFS;
8083 free_msg:
8084 nlmsg_free(msg);
8085 return err;
8086}
8087
5e760230
JB		 8088static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8089{
8090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8091 struct cfg80211_beacon_registration *reg, *nreg;
8092 int rv;
5e760230
JB		 8093
8094 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8095 return -EOPNOTSUPP;
8096
37c73b5f
BG		 8097 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8098 if (!nreg)
8099 return -ENOMEM;
8100
8101 /* First, check if already registered. */
8102 spin_lock_bh(&rdev->beacon_registrations_lock);
8103 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8104 if (reg->nlportid == info->snd_portid) {
8105 rv = -EALREADY;
8106 goto out_err;
8107 }
8108 }
8109 /* Add it to the list */
8110 nreg->nlportid = info->snd_portid;
8111 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8112
37c73b5f 8113 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8114
8115 return 0;
37c73b5f
BG		 8116out_err:
8117 spin_unlock_bh(&rdev->beacon_registrations_lock);
8118 kfree(nreg);
8119 return rv;
5e760230
JB		 8120}
8121
98104fde
JB		 8122static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8123{
8124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8125 struct wireless_dev *wdev = info->user_ptr[1];
8126 int err;
8127
8128 if (!rdev->ops->start_p2p_device)
8129 return -EOPNOTSUPP;
8130
8131 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8132 return -EOPNOTSUPP;
8133
8134 if (wdev->p2p_started)
8135 return 0;
8136
8137 mutex_lock(&rdev->devlist_mtx);
8138 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8139 mutex_unlock(&rdev->devlist_mtx);
8140 if (err)
8141 return err;
8142
eeb126e9 8143 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8144 if (err)
8145 return err;
8146
8147 wdev->p2p_started = true;
8148 mutex_lock(&rdev->devlist_mtx);
8149 rdev->opencount++;
8150 mutex_unlock(&rdev->devlist_mtx);
8151
8152 return 0;
8153}
8154
8155static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8156{
8157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8158 struct wireless_dev *wdev = info->user_ptr[1];
8159
8160 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8161 return -EOPNOTSUPP;
8162
8163 if (!rdev->ops->stop_p2p_device)
8164 return -EOPNOTSUPP;
8165
65e8d5b8 8166 mutex_lock(&rdev->devlist_mtx);
f9f47529
JB		 8167 mutex_lock(&rdev->sched_scan_mtx);
8168 cfg80211_stop_p2p_device(rdev, wdev);
8169 mutex_unlock(&rdev->sched_scan_mtx);
65e8d5b8 8170 mutex_unlock(&rdev->devlist_mtx);
98104fde
JB		 8171
8172 return 0;
8173}
8174
3713b4e3
JB		 8175static int nl80211_get_protocol_features(struct sk_buff *skb,
8176 struct genl_info *info)
8177{
8178 void *hdr;
8179 struct sk_buff *msg;
8180
8181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8182 if (!msg)
8183 return -ENOMEM;
8184
8185 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8186 NL80211_CMD_GET_PROTOCOL_FEATURES);
8187 if (!hdr)
8188 goto nla_put_failure;
8189
8190 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8191 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8192 goto nla_put_failure;
8193
8194 genlmsg_end(msg, hdr);
8195 return genlmsg_reply(msg, info);
8196
8197 nla_put_failure:
8198 kfree_skb(msg);
8199 return -ENOBUFS;
8200}
8201
355199e0
JM		 8202static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8203{
8204 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8205 struct cfg80211_update_ft_ies_params ft_params;
8206 struct net_device *dev = info->user_ptr[1];
8207
8208 if (!rdev->ops->update_ft_ies)
8209 return -EOPNOTSUPP;
8210
8211 if (!info->attrs[NL80211_ATTR_MDID] ||
8212 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8213 return -EINVAL;
8214
8215 memset(&ft_params, 0, sizeof(ft_params));
8216 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8217 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8218 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8219
8220 return rdev_update_ft_ies(rdev, dev, &ft_params);
8221}
8222
5de17984
AS		 8223static int nl80211_crit_protocol_start(struct sk_buff *skb,
8224 struct genl_info *info)
8225{
8226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8227 struct wireless_dev *wdev = info->user_ptr[1];
8228 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8229 u16 duration;
8230 int ret;
8231
8232 if (!rdev->ops->crit_proto_start)
8233 return -EOPNOTSUPP;
8234
8235 if (WARN_ON(!rdev->ops->crit_proto_stop))
8236 return -EINVAL;
8237
8238 if (rdev->crit_proto_nlportid)
8239 return -EBUSY;
8240
8241 /* determine protocol if provided */
8242 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8243 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8244
8245 if (proto >= NUM_NL80211_CRIT_PROTO)
8246 return -EINVAL;
8247
8248 /* timeout must be provided */
8249 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8250 return -EINVAL;
8251
8252 duration =
8253 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8254
8255 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8256 return -ERANGE;
8257
8258 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8259 if (!ret)
8260 rdev->crit_proto_nlportid = info->snd_portid;
8261
8262 return ret;
8263}
8264
8265static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8266 struct genl_info *info)
8267{
8268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8269 struct wireless_dev *wdev = info->user_ptr[1];
8270
8271 if (!rdev->ops->crit_proto_stop)
8272 return -EOPNOTSUPP;
8273
8274 if (rdev->crit_proto_nlportid) {
8275 rdev->crit_proto_nlportid = 0;
8276 rdev_crit_proto_stop(rdev, wdev);
8277 }
8278 return 0;
8279}
8280
4c476991
JB		 8281#define NL80211_FLAG_NEED_WIPHY 0x01
8282#define NL80211_FLAG_NEED_NETDEV 0x02
8283#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8284#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8285#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8286 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8287#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8288/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8289#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8290 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8291
8292static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8293 struct genl_info *info)
8294{
8295 struct cfg80211_registered_device *rdev;
89a54e48 8296 struct wireless_dev *wdev;
4c476991 8297 struct net_device *dev;
4c476991
JB		 8298 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8299
8300 if (rtnl)
8301 rtnl_lock();
8302
8303 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8304 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8305 if (IS_ERR(rdev)) {
8306 if (rtnl)
8307 rtnl_unlock();
8308 return PTR_ERR(rdev);
8309 }
8310 info->user_ptr[0] = rdev;
1bf614ef
JB		 8311 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8312 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 8313 mutex_lock(&cfg80211_mutex);
8314 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8315 info->attrs);
8316 if (IS_ERR(wdev)) {
8317 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 8318 if (rtnl)
8319 rtnl_unlock();
89a54e48 8320 return PTR_ERR(wdev);
4c476991 8321 }
89a54e48 8322
89a54e48
JB		 8323 dev = wdev->netdev;
8324 rdev = wiphy_to_dev(wdev->wiphy);
8325
1bf614ef
JB		 8326 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8327 if (!dev) {
8328 mutex_unlock(&cfg80211_mutex);
8329 if (rtnl)
8330 rtnl_unlock();
8331 return -EINVAL;
8332 }
8333
8334 info->user_ptr[1] = dev;
8335 } else {
8336 info->user_ptr[1] = wdev;
41265714 8337 }
1bf614ef
JB		 8338
8339 if (dev) {
8340 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8341 !netif_running(dev)) {
8342 mutex_unlock(&cfg80211_mutex);
8343 if (rtnl)
8344 rtnl_unlock();
8345 return -ENETDOWN;
8346 }
8347
8348 dev_hold(dev);
98104fde
JB		 8349 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8350 if (!wdev->p2p_started) {
8351 mutex_unlock(&cfg80211_mutex);
8352 if (rtnl)
8353 rtnl_unlock();
8354 return -ENETDOWN;
8355 }
41265714 8356 }
89a54e48 8357
89a54e48
JB		 8358 cfg80211_lock_rdev(rdev);
8359
8360 mutex_unlock(&cfg80211_mutex);
8361
4c476991 8362 info->user_ptr[0] = rdev;
4c476991
JB		 8363 }
8364
8365 return 0;
8366}
8367
8368static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8369 struct genl_info *info)
8370{
8371 if (info->user_ptr[0])
8372 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 8373 if (info->user_ptr[1]) {
8374 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8375 struct wireless_dev *wdev = info->user_ptr[1];
8376
8377 if (wdev->netdev)
8378 dev_put(wdev->netdev);
8379 } else {
8380 dev_put(info->user_ptr[1]);
8381 }
8382 }
4c476991
JB		 8383 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8384 rtnl_unlock();
8385}
8386
55682965
JB		 8387static struct genl_ops nl80211_ops[] = {
8388 {
8389 .cmd = NL80211_CMD_GET_WIPHY,
8390 .doit = nl80211_get_wiphy,
8391 .dumpit = nl80211_dump_wiphy,
8392 .policy = nl80211_policy,
8393 /* can be retrieved by unprivileged users */
4c476991 8394 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 8395 },
8396 {
8397 .cmd = NL80211_CMD_SET_WIPHY,
8398 .doit = nl80211_set_wiphy,
8399 .policy = nl80211_policy,
8400 .flags = GENL_ADMIN_PERM,
4c476991 8401 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8402 },
8403 {
8404 .cmd = NL80211_CMD_GET_INTERFACE,
8405 .doit = nl80211_get_interface,
8406 .dumpit = nl80211_dump_interface,
8407 .policy = nl80211_policy,
8408 /* can be retrieved by unprivileged users */
72fb2abc 8409 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 8410 },
8411 {
8412 .cmd = NL80211_CMD_SET_INTERFACE,
8413 .doit = nl80211_set_interface,
8414 .policy = nl80211_policy,
8415 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8416 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8417 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8418 },
8419 {
8420 .cmd = NL80211_CMD_NEW_INTERFACE,
8421 .doit = nl80211_new_interface,
8422 .policy = nl80211_policy,
8423 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8424 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8425 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8426 },
8427 {
8428 .cmd = NL80211_CMD_DEL_INTERFACE,
8429 .doit = nl80211_del_interface,
8430 .policy = nl80211_policy,
41ade00f 8431 .flags = GENL_ADMIN_PERM,
84efbb84 8432 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8433 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8434 },
8435 {
8436 .cmd = NL80211_CMD_GET_KEY,
8437 .doit = nl80211_get_key,
8438 .policy = nl80211_policy,
8439 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8440 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8441 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8442 },
8443 {
8444 .cmd = NL80211_CMD_SET_KEY,
8445 .doit = nl80211_set_key,
8446 .policy = nl80211_policy,
8447 .flags = GENL_ADMIN_PERM,
41265714 8448 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8449 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8450 },
8451 {
8452 .cmd = NL80211_CMD_NEW_KEY,
8453 .doit = nl80211_new_key,
8454 .policy = nl80211_policy,
8455 .flags = GENL_ADMIN_PERM,
41265714 8456 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8457 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8458 },
8459 {
8460 .cmd = NL80211_CMD_DEL_KEY,
8461 .doit = nl80211_del_key,
8462 .policy = nl80211_policy,
55682965 8463 .flags = GENL_ADMIN_PERM,
41265714 8464 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8465 NL80211_FLAG_NEED_RTNL,
55682965 8466 },
ed1b6cc7
JB		 8467 {
8468 .cmd = NL80211_CMD_SET_BEACON,
8469 .policy = nl80211_policy,
8470 .flags = GENL_ADMIN_PERM,
8860020e 8471 .doit = nl80211_set_beacon,
2b5f8b0b 8472 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8473 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8474 },
8475 {
8860020e 8476 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8477 .policy = nl80211_policy,
8478 .flags = GENL_ADMIN_PERM,
8860020e 8479 .doit = nl80211_start_ap,
2b5f8b0b 8480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8481 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8482 },
8483 {
8860020e 8484 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8485 .policy = nl80211_policy,
8486 .flags = GENL_ADMIN_PERM,
8860020e 8487 .doit = nl80211_stop_ap,
2b5f8b0b 8488 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8489 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8490 },
5727ef1b
JB		 8491 {
8492 .cmd = NL80211_CMD_GET_STATION,
8493 .doit = nl80211_get_station,
2ec600d6 8494 .dumpit = nl80211_dump_station,
5727ef1b 8495 .policy = nl80211_policy,
4c476991
JB		 8496 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8497 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8498 },
8499 {
8500 .cmd = NL80211_CMD_SET_STATION,
8501 .doit = nl80211_set_station,
8502 .policy = nl80211_policy,
8503 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8505 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8506 },
8507 {
8508 .cmd = NL80211_CMD_NEW_STATION,
8509 .doit = nl80211_new_station,
8510 .policy = nl80211_policy,
8511 .flags = GENL_ADMIN_PERM,
41265714 8512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8513 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8514 },
8515 {
8516 .cmd = NL80211_CMD_DEL_STATION,
8517 .doit = nl80211_del_station,
8518 .policy = nl80211_policy,
2ec600d6 8519 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8521 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8522 },
8523 {
8524 .cmd = NL80211_CMD_GET_MPATH,
8525 .doit = nl80211_get_mpath,
8526 .dumpit = nl80211_dump_mpath,
8527 .policy = nl80211_policy,
8528 .flags = GENL_ADMIN_PERM,
41265714 8529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8530 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8531 },
8532 {
8533 .cmd = NL80211_CMD_SET_MPATH,
8534 .doit = nl80211_set_mpath,
8535 .policy = nl80211_policy,
8536 .flags = GENL_ADMIN_PERM,
41265714 8537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8538 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8539 },
8540 {
8541 .cmd = NL80211_CMD_NEW_MPATH,
8542 .doit = nl80211_new_mpath,
8543 .policy = nl80211_policy,
8544 .flags = GENL_ADMIN_PERM,
41265714 8545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8546 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8547 },
8548 {
8549 .cmd = NL80211_CMD_DEL_MPATH,
8550 .doit = nl80211_del_mpath,
8551 .policy = nl80211_policy,
9f1ba906 8552 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8554 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8555 },
8556 {
8557 .cmd = NL80211_CMD_SET_BSS,
8558 .doit = nl80211_set_bss,
8559 .policy = nl80211_policy,
b2e1b302 8560 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8562 NL80211_FLAG_NEED_RTNL,
b2e1b302 8563 },
f130347c
LR		 8564 {
8565 .cmd = NL80211_CMD_GET_REG,
8566 .doit = nl80211_get_reg,
8567 .policy = nl80211_policy,
8568 /* can be retrieved by unprivileged users */
8569 },
b2e1b302
LR		 8570 {
8571 .cmd = NL80211_CMD_SET_REG,
8572 .doit = nl80211_set_reg,
8573 .policy = nl80211_policy,
8574 .flags = GENL_ADMIN_PERM,
8575 },
8576 {
8577 .cmd = NL80211_CMD_REQ_SET_REG,
8578 .doit = nl80211_req_set_reg,
8579 .policy = nl80211_policy,
93da9cc1 8580 .flags = GENL_ADMIN_PERM,
8581 },
8582 {
24bdd9f4
JC		 8583 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8584 .doit = nl80211_get_mesh_config,
93da9cc1 8585 .policy = nl80211_policy,
8586 /* can be retrieved by unprivileged users */
2b5f8b0b 8587 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8588 NL80211_FLAG_NEED_RTNL,
93da9cc1 8589 },
8590 {
24bdd9f4
JC		 8591 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8592 .doit = nl80211_update_mesh_config,
93da9cc1 8593 .policy = nl80211_policy,
9aed3cc1 8594 .flags = GENL_ADMIN_PERM,
29cbe68c 8595 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8596 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8597 },
2a519311
JB		 8598 {
8599 .cmd = NL80211_CMD_TRIGGER_SCAN,
8600 .doit = nl80211_trigger_scan,
8601 .policy = nl80211_policy,
8602 .flags = GENL_ADMIN_PERM,
fd014284 8603 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8604 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8605 },
8606 {
8607 .cmd = NL80211_CMD_GET_SCAN,
8608 .policy = nl80211_policy,
8609 .dumpit = nl80211_dump_scan,
8610 },
807f8a8c
LC		 8611 {
8612 .cmd = NL80211_CMD_START_SCHED_SCAN,
8613 .doit = nl80211_start_sched_scan,
8614 .policy = nl80211_policy,
8615 .flags = GENL_ADMIN_PERM,
8616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8617 NL80211_FLAG_NEED_RTNL,
8618 },
8619 {
8620 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8621 .doit = nl80211_stop_sched_scan,
8622 .policy = nl80211_policy,
8623 .flags = GENL_ADMIN_PERM,
8624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8625 NL80211_FLAG_NEED_RTNL,
8626 },
636a5d36
JM		 8627 {
8628 .cmd = NL80211_CMD_AUTHENTICATE,
8629 .doit = nl80211_authenticate,
8630 .policy = nl80211_policy,
8631 .flags = GENL_ADMIN_PERM,
41265714 8632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8633 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8634 },
8635 {
8636 .cmd = NL80211_CMD_ASSOCIATE,
8637 .doit = nl80211_associate,
8638 .policy = nl80211_policy,
8639 .flags = GENL_ADMIN_PERM,
41265714 8640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8641 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8642 },
8643 {
8644 .cmd = NL80211_CMD_DEAUTHENTICATE,
8645 .doit = nl80211_deauthenticate,
8646 .policy = nl80211_policy,
8647 .flags = GENL_ADMIN_PERM,
41265714 8648 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8649 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8650 },
8651 {
8652 .cmd = NL80211_CMD_DISASSOCIATE,
8653 .doit = nl80211_disassociate,
8654 .policy = nl80211_policy,
8655 .flags = GENL_ADMIN_PERM,
41265714 8656 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8657 NL80211_FLAG_NEED_RTNL,
636a5d36 8658 },
04a773ad
JB		 8659 {
8660 .cmd = NL80211_CMD_JOIN_IBSS,
8661 .doit = nl80211_join_ibss,
8662 .policy = nl80211_policy,
8663 .flags = GENL_ADMIN_PERM,
41265714 8664 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8665 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8666 },
8667 {
8668 .cmd = NL80211_CMD_LEAVE_IBSS,
8669 .doit = nl80211_leave_ibss,
8670 .policy = nl80211_policy,
8671 .flags = GENL_ADMIN_PERM,
41265714 8672 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8673 NL80211_FLAG_NEED_RTNL,
04a773ad 8674 },
aff89a9b
JB		 8675#ifdef CONFIG_NL80211_TESTMODE
8676 {
8677 .cmd = NL80211_CMD_TESTMODE,
8678 .doit = nl80211_testmode_do,
71063f0e 8679 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8680 .policy = nl80211_policy,
8681 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8682 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8683 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8684 },
8685#endif
b23aa676
SO		 8686 {
8687 .cmd = NL80211_CMD_CONNECT,
8688 .doit = nl80211_connect,
8689 .policy = nl80211_policy,
8690 .flags = GENL_ADMIN_PERM,
41265714 8691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8692 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8693 },
8694 {
8695 .cmd = NL80211_CMD_DISCONNECT,
8696 .doit = nl80211_disconnect,
8697 .policy = nl80211_policy,
8698 .flags = GENL_ADMIN_PERM,
41265714 8699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8700 NL80211_FLAG_NEED_RTNL,
b23aa676 8701 },
463d0183
JB		 8702 {
8703 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8704 .doit = nl80211_wiphy_netns,
8705 .policy = nl80211_policy,
8706 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8707 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8708 NL80211_FLAG_NEED_RTNL,
463d0183 8709 },
61fa713c
HS		 8710 {
8711 .cmd = NL80211_CMD_GET_SURVEY,
8712 .policy = nl80211_policy,
8713 .dumpit = nl80211_dump_survey,
8714 },
67fbb16b
SO		 8715 {
8716 .cmd = NL80211_CMD_SET_PMKSA,
8717 .doit = nl80211_setdel_pmksa,
8718 .policy = nl80211_policy,
8719 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8720 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8721 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8722 },
8723 {
8724 .cmd = NL80211_CMD_DEL_PMKSA,
8725 .doit = nl80211_setdel_pmksa,
8726 .policy = nl80211_policy,
8727 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8729 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8730 },
8731 {
8732 .cmd = NL80211_CMD_FLUSH_PMKSA,
8733 .doit = nl80211_flush_pmksa,
8734 .policy = nl80211_policy,
8735 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8737 NL80211_FLAG_NEED_RTNL,
67fbb16b 8738 },
9588bbd5
JM		 8739 {
8740 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8741 .doit = nl80211_remain_on_channel,
8742 .policy = nl80211_policy,
8743 .flags = GENL_ADMIN_PERM,
71bbc994 8744 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8745 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8746 },
8747 {
8748 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8749 .doit = nl80211_cancel_remain_on_channel,
8750 .policy = nl80211_policy,
8751 .flags = GENL_ADMIN_PERM,
71bbc994 8752 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8753 NL80211_FLAG_NEED_RTNL,
9588bbd5 8754 },
13ae75b1
JM		 8755 {
8756 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8757 .doit = nl80211_set_tx_bitrate_mask,
8758 .policy = nl80211_policy,
8759 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8760 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8761 NL80211_FLAG_NEED_RTNL,
13ae75b1 8762 },
026331c4 8763 {
2e161f78
JB		 8764 .cmd = NL80211_CMD_REGISTER_FRAME,
8765 .doit = nl80211_register_mgmt,
026331c4
JM		 8766 .policy = nl80211_policy,
8767 .flags = GENL_ADMIN_PERM,
71bbc994 8768 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8769 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8770 },
8771 {
2e161f78
JB		 8772 .cmd = NL80211_CMD_FRAME,
8773 .doit = nl80211_tx_mgmt,
026331c4 8774 .policy = nl80211_policy,
f7ca38df 8775 .flags = GENL_ADMIN_PERM,
71bbc994 8776 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8777 NL80211_FLAG_NEED_RTNL,
8778 },
8779 {
8780 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8781 .doit = nl80211_tx_mgmt_cancel_wait,
8782 .policy = nl80211_policy,
026331c4 8783 .flags = GENL_ADMIN_PERM,
71bbc994 8784 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8785 NL80211_FLAG_NEED_RTNL,
026331c4 8786 },
ffb9eb3d
KV		 8787 {
8788 .cmd = NL80211_CMD_SET_POWER_SAVE,
8789 .doit = nl80211_set_power_save,
8790 .policy = nl80211_policy,
8791 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8792 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8793 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8794 },
8795 {
8796 .cmd = NL80211_CMD_GET_POWER_SAVE,
8797 .doit = nl80211_get_power_save,
8798 .policy = nl80211_policy,
8799 /* can be retrieved by unprivileged users */
4c476991
JB		 8800 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8801 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8802 },
d6dc1a38
JO		 8803 {
8804 .cmd = NL80211_CMD_SET_CQM,
8805 .doit = nl80211_set_cqm,
8806 .policy = nl80211_policy,
8807 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8808 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8809 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8810 },
f444de05
JB		 8811 {
8812 .cmd = NL80211_CMD_SET_CHANNEL,
8813 .doit = nl80211_set_channel,
8814 .policy = nl80211_policy,
8815 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8816 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8817 NL80211_FLAG_NEED_RTNL,
f444de05 8818 },
e8347eba
BJ		 8819 {
8820 .cmd = NL80211_CMD_SET_WDS_PEER,
8821 .doit = nl80211_set_wds_peer,
8822 .policy = nl80211_policy,
8823 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8824 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8825 NL80211_FLAG_NEED_RTNL,
e8347eba 8826 },
29cbe68c
JB		 8827 {
8828 .cmd = NL80211_CMD_JOIN_MESH,
8829 .doit = nl80211_join_mesh,
8830 .policy = nl80211_policy,
8831 .flags = GENL_ADMIN_PERM,
8832 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8833 NL80211_FLAG_NEED_RTNL,
8834 },
8835 {
8836 .cmd = NL80211_CMD_LEAVE_MESH,
8837 .doit = nl80211_leave_mesh,
8838 .policy = nl80211_policy,
8839 .flags = GENL_ADMIN_PERM,
8840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8841 NL80211_FLAG_NEED_RTNL,
8842 },
dfb89c56 8843#ifdef CONFIG_PM
ff1b6e69
JB		 8844 {
8845 .cmd = NL80211_CMD_GET_WOWLAN,
8846 .doit = nl80211_get_wowlan,
8847 .policy = nl80211_policy,
8848 /* can be retrieved by unprivileged users */
8849 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8850 NL80211_FLAG_NEED_RTNL,
8851 },
8852 {
8853 .cmd = NL80211_CMD_SET_WOWLAN,
8854 .doit = nl80211_set_wowlan,
8855 .policy = nl80211_policy,
8856 .flags = GENL_ADMIN_PERM,
8857 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8858 NL80211_FLAG_NEED_RTNL,
8859 },
dfb89c56 8860#endif
e5497d76
JB		 8861 {
8862 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8863 .doit = nl80211_set_rekey_data,
8864 .policy = nl80211_policy,
8865 .flags = GENL_ADMIN_PERM,
8866 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8867 NL80211_FLAG_NEED_RTNL,
8868 },
109086ce
AN		 8869 {
8870 .cmd = NL80211_CMD_TDLS_MGMT,
8871 .doit = nl80211_tdls_mgmt,
8872 .policy = nl80211_policy,
8873 .flags = GENL_ADMIN_PERM,
8874 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8875 NL80211_FLAG_NEED_RTNL,
8876 },
8877 {
8878 .cmd = NL80211_CMD_TDLS_OPER,
8879 .doit = nl80211_tdls_oper,
8880 .policy = nl80211_policy,
8881 .flags = GENL_ADMIN_PERM,
8882 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8883 NL80211_FLAG_NEED_RTNL,
8884 },
28946da7
JB		 8885 {
8886 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8887 .doit = nl80211_register_unexpected_frame,
8888 .policy = nl80211_policy,
8889 .flags = GENL_ADMIN_PERM,
8890 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8891 NL80211_FLAG_NEED_RTNL,
8892 },
7f6cf311
JB		 8893 {
8894 .cmd = NL80211_CMD_PROBE_CLIENT,
8895 .doit = nl80211_probe_client,
8896 .policy = nl80211_policy,
8897 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8899 NL80211_FLAG_NEED_RTNL,
8900 },
5e760230
JB		 8901 {
8902 .cmd = NL80211_CMD_REGISTER_BEACONS,
8903 .doit = nl80211_register_beacons,
8904 .policy = nl80211_policy,
8905 .flags = GENL_ADMIN_PERM,
8906 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8907 NL80211_FLAG_NEED_RTNL,
8908 },
1d9d9213
SW		 8909 {
8910 .cmd = NL80211_CMD_SET_NOACK_MAP,
8911 .doit = nl80211_set_noack_map,
8912 .policy = nl80211_policy,
8913 .flags = GENL_ADMIN_PERM,
8914 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8915 NL80211_FLAG_NEED_RTNL,
8916 },
98104fde
JB		 8917 {
8918 .cmd = NL80211_CMD_START_P2P_DEVICE,
8919 .doit = nl80211_start_p2p_device,
8920 .policy = nl80211_policy,
8921 .flags = GENL_ADMIN_PERM,
8922 .internal_flags = NL80211_FLAG_NEED_WDEV |
8923 NL80211_FLAG_NEED_RTNL,
8924 },
8925 {
8926 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8927 .doit = nl80211_stop_p2p_device,
8928 .policy = nl80211_policy,
8929 .flags = GENL_ADMIN_PERM,
8930 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8931 NL80211_FLAG_NEED_RTNL,
8932 },
f4e583c8
AQ		 8933 {
8934 .cmd = NL80211_CMD_SET_MCAST_RATE,
8935 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8936 .policy = nl80211_policy,
8937 .flags = GENL_ADMIN_PERM,
8938 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8939 NL80211_FLAG_NEED_RTNL,
8940 },
8941 {
8942 .cmd = NL80211_CMD_SET_MAC_ACL,
8943 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8944 .policy = nl80211_policy,
8945 .flags = GENL_ADMIN_PERM,
8946 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8947 NL80211_FLAG_NEED_RTNL,
8948 },
04f39047
SW		 8949 {
8950 .cmd = NL80211_CMD_RADAR_DETECT,
8951 .doit = nl80211_start_radar_detection,
8952 .policy = nl80211_policy,
8953 .flags = GENL_ADMIN_PERM,
8954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8955 NL80211_FLAG_NEED_RTNL,
8956 },
3713b4e3
JB		 8957 {
8958 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8959 .doit = nl80211_get_protocol_features,
8960 .policy = nl80211_policy,
8961 },
355199e0
JM		 8962 {
8963 .cmd = NL80211_CMD_UPDATE_FT_IES,
8964 .doit = nl80211_update_ft_ies,
8965 .policy = nl80211_policy,
8966 .flags = GENL_ADMIN_PERM,
8967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8968 NL80211_FLAG_NEED_RTNL,
8969 },
5de17984
AS		 8970 {
8971 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
8972 .doit = nl80211_crit_protocol_start,
8973 .policy = nl80211_policy,
8974 .flags = GENL_ADMIN_PERM,
8975 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8976 NL80211_FLAG_NEED_RTNL,
8977 },
8978 {
8979 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
8980 .doit = nl80211_crit_protocol_stop,
8981 .policy = nl80211_policy,
8982 .flags = GENL_ADMIN_PERM,
8983 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8984 NL80211_FLAG_NEED_RTNL,
8985 }
55682965 8986};
9588bbd5 8987
6039f6d2
JM		 8988static struct genl_multicast_group nl80211_mlme_mcgrp = {
8989 .name = "mlme",
8990};
55682965
JB		 8991
8992/* multicast groups */
8993static struct genl_multicast_group nl80211_config_mcgrp = {
8994 .name = "config",
8995};
2a519311
JB		 8996static struct genl_multicast_group nl80211_scan_mcgrp = {
8997 .name = "scan",
8998};
73d54c9e
LR		 8999static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9000 .name = "regulatory",
9001};
55682965
JB		 9002
9003/* notification functions */
9004
9005void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9006{
9007 struct sk_buff *msg;
9008
fd2120ca 9009 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9010 if (!msg)
9011 return;
9012
3713b4e3
JB		 9013 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
9014 false, NULL, NULL, NULL) < 0) {
55682965
JB		 9015 nlmsg_free(msg);
9016 return;
9017 }
9018
463d0183
JB		 9019 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9020 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 9021}
9022
362a415d
JB		 9023static int nl80211_add_scan_req(struct sk_buff *msg,
9024 struct cfg80211_registered_device *rdev)
9025{
9026 struct cfg80211_scan_request *req = rdev->scan_req;
9027 struct nlattr *nest;
9028 int i;
9029
f9f47529 9030 lockdep_assert_held(&rdev->sched_scan_mtx);
667503dd 9031
362a415d
JB		 9032 if (WARN_ON(!req))
9033 return 0;
9034
9035 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9036 if (!nest)
9037 goto nla_put_failure;
9360ffd1
DM		 9038 for (i = 0; i < req->n_ssids; i++) {
9039 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9040 goto nla_put_failure;
9041 }
362a415d
JB		 9042 nla_nest_end(msg, nest);
9043
9044 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9045 if (!nest)
9046 goto nla_put_failure;
9360ffd1
DM		 9047 for (i = 0; i < req->n_channels; i++) {
9048 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9049 goto nla_put_failure;
9050 }
362a415d
JB		 9051 nla_nest_end(msg, nest);
9052
9360ffd1
DM		 9053 if (req->ie &&
9054 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9055 goto nla_put_failure;
362a415d 9056
ed473771
SL		 9057 if (req->flags)
9058 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9059
362a415d
JB		 9060 return 0;
9061 nla_put_failure:
9062 return -ENOBUFS;
9063}
9064
a538e2d5
JB		 9065static int nl80211_send_scan_msg(struct sk_buff *msg,
9066 struct cfg80211_registered_device *rdev,
fd014284 9067 struct wireless_dev *wdev,
15e47304 9068 u32 portid, u32 seq, int flags,
a538e2d5 9069 u32 cmd)
2a519311
JB		 9070{
9071 void *hdr;
9072
15e47304 9073 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9074 if (!hdr)
9075 return -1;
9076
9360ffd1 9077 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9078 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9079 wdev->netdev->ifindex)) ||
9080 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9081 goto nla_put_failure;
2a519311 9082
362a415d
JB		 9083 /* ignore errors and send incomplete event anyway */
9084 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9085
9086 return genlmsg_end(msg, hdr);
9087
9088 nla_put_failure:
9089 genlmsg_cancel(msg, hdr);
9090 return -EMSGSIZE;
9091}
9092
807f8a8c
LC		 9093static int
9094nl80211_send_sched_scan_msg(struct sk_buff *msg,
9095 struct cfg80211_registered_device *rdev,
9096 struct net_device *netdev,
15e47304 9097 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9098{
9099 void *hdr;
9100
15e47304 9101 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9102 if (!hdr)
9103 return -1;
9104
9360ffd1
DM		 9105 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9106 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9107 goto nla_put_failure;
807f8a8c
LC		 9108
9109 return genlmsg_end(msg, hdr);
9110
9111 nla_put_failure:
9112 genlmsg_cancel(msg, hdr);
9113 return -EMSGSIZE;
9114}
9115
a538e2d5 9116void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9117 struct wireless_dev *wdev)
a538e2d5
JB		 9118{
9119 struct sk_buff *msg;
9120
58050fce 9121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9122 if (!msg)
9123 return;
9124
fd014284 9125 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9126 NL80211_CMD_TRIGGER_SCAN) < 0) {
9127 nlmsg_free(msg);
9128 return;
9129 }
9130
463d0183
JB		 9131 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9132 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9133}
9134
2a519311 9135void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9136 struct wireless_dev *wdev)
2a519311
JB		 9137{
9138 struct sk_buff *msg;
9139
fd2120ca 9140 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9141 if (!msg)
9142 return;
9143
fd014284 9144 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9145 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9146 nlmsg_free(msg);
9147 return;
9148 }
9149
463d0183
JB		 9150 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9151 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9152}
9153
9154void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9155 struct wireless_dev *wdev)
2a519311
JB		 9156{
9157 struct sk_buff *msg;
9158
fd2120ca 9159 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9160 if (!msg)
9161 return;
9162
fd014284 9163 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9164 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9165 nlmsg_free(msg);
9166 return;
9167 }
9168
463d0183
JB		 9169 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9170 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9171}
9172
807f8a8c
LC		 9173void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9174 struct net_device *netdev)
9175{
9176 struct sk_buff *msg;
9177
9178 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9179 if (!msg)
9180 return;
9181
9182 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9183 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9184 nlmsg_free(msg);
9185 return;
9186 }
9187
9188 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9189 nl80211_scan_mcgrp.id, GFP_KERNEL);
9190}
9191
9192void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9193 struct net_device *netdev, u32 cmd)
9194{
9195 struct sk_buff *msg;
9196
58050fce 9197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9198 if (!msg)
9199 return;
9200
9201 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9202 nlmsg_free(msg);
9203 return;
9204 }
9205
9206 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9207 nl80211_scan_mcgrp.id, GFP_KERNEL);
9208}
9209
73d54c9e
LR		 9210/*
9211 * This can happen on global regulatory changes or device specific settings
9212 * based on custom world regulatory domains.
9213 */
9214void nl80211_send_reg_change_event(struct regulatory_request *request)
9215{
9216 struct sk_buff *msg;
9217 void *hdr;
9218
fd2120ca 9219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9220 if (!msg)
9221 return;
9222
9223 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9224 if (!hdr) {
9225 nlmsg_free(msg);
9226 return;
9227 }
9228
9229 /* Userspace can always count this one always being set */
9360ffd1
DM		 9230 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9231 goto nla_put_failure;
9232
9233 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9234 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9235 NL80211_REGDOM_TYPE_WORLD))
9236 goto nla_put_failure;
9237 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9238 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9239 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9240 goto nla_put_failure;
9241 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9242 request->intersect) {
9243 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9244 NL80211_REGDOM_TYPE_INTERSECTION))
9245 goto nla_put_failure;
9246 } else {
9247 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9248 NL80211_REGDOM_TYPE_COUNTRY) ||
9249 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9250 request->alpha2))
9251 goto nla_put_failure;
9252 }
9253
f4173766 9254 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9255 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9256 goto nla_put_failure;
73d54c9e 9257
3b7b72ee 9258 genlmsg_end(msg, hdr);
73d54c9e 9259
bc43b28c 9260 rcu_read_lock();
463d0183 9261 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9262 GFP_ATOMIC);
9263 rcu_read_unlock();
73d54c9e
LR		 9264
9265 return;
9266
9267nla_put_failure:
9268 genlmsg_cancel(msg, hdr);
9269 nlmsg_free(msg);
9270}
9271
6039f6d2
JM		 9272static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9273 struct net_device *netdev,
9274 const u8 *buf, size_t len,
e6d6e342 9275 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9276{
9277 struct sk_buff *msg;
9278 void *hdr;
9279
e6d6e342 9280 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9281 if (!msg)
9282 return;
9283
9284 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9285 if (!hdr) {
9286 nlmsg_free(msg);
9287 return;
9288 }
9289
9360ffd1
DM		 9290 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9291 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9292 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9293 goto nla_put_failure;
6039f6d2 9294
3b7b72ee 9295 genlmsg_end(msg, hdr);
6039f6d2 9296
463d0183
JB		 9297 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9298 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9299 return;
9300
9301 nla_put_failure:
9302 genlmsg_cancel(msg, hdr);
9303 nlmsg_free(msg);
9304}
9305
9306void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9307 struct net_device *netdev, const u8 *buf,
9308 size_t len, gfp_t gfp)
6039f6d2
JM		 9309{
9310 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9311 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9312}
9313
9314void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9315 struct net_device *netdev, const u8 *buf,
e6d6e342 9316 size_t len, gfp_t gfp)
6039f6d2 9317{
e6d6e342
JB		 9318 nl80211_send_mlme_event(rdev, netdev, buf, len,
9319 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9320}
9321
53b46b84 9322void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9323 struct net_device *netdev, const u8 *buf,
9324 size_t len, gfp_t gfp)
6039f6d2
JM		 9325{
9326 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9327 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9328}
9329
53b46b84
JM		 9330void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9331 struct net_device *netdev, const u8 *buf,
e6d6e342 9332 size_t len, gfp_t gfp)
6039f6d2
JM		 9333{
9334 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9335 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9336}
9337
947add36
JB		 9338void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
9339 size_t len)
cf4e594e 9340{
947add36
JB		 9341 struct wireless_dev *wdev = dev->ieee80211_ptr;
9342 struct wiphy *wiphy = wdev->wiphy;
9343 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9344
9345 trace_cfg80211_send_unprot_deauth(dev);
9346 nl80211_send_mlme_event(rdev, dev, buf, len,
9347 NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
cf4e594e 9348}
947add36 9349EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
cf4e594e 9350
947add36
JB		 9351void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
9352 size_t len)
cf4e594e 9353{
947add36
JB		 9354 struct wireless_dev *wdev = dev->ieee80211_ptr;
9355 struct wiphy *wiphy = wdev->wiphy;
9356 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9357
9358 trace_cfg80211_send_unprot_disassoc(dev);
9359 nl80211_send_mlme_event(rdev, dev, buf, len,
9360 NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
cf4e594e 9361}
947add36 9362EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
cf4e594e 9363
1b06bb40
LR		 9364static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9365 struct net_device *netdev, int cmd,
e6d6e342 9366 const u8 *addr, gfp_t gfp)
1965c853
JM		 9367{
9368 struct sk_buff *msg;
9369 void *hdr;
9370
e6d6e342 9371 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9372 if (!msg)
9373 return;
9374
9375 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9376 if (!hdr) {
9377 nlmsg_free(msg);
9378 return;
9379 }
9380
9360ffd1
DM		 9381 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9382 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9383 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9384 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9385 goto nla_put_failure;
1965c853 9386
3b7b72ee 9387 genlmsg_end(msg, hdr);
1965c853 9388
463d0183
JB		 9389 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9390 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9391 return;
9392
9393 nla_put_failure:
9394 genlmsg_cancel(msg, hdr);
9395 nlmsg_free(msg);
9396}
9397
9398void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9399 struct net_device *netdev, const u8 *addr,
9400 gfp_t gfp)
1965c853
JM		 9401{
9402 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9403 addr, gfp);
1965c853
JM		 9404}
9405
9406void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9407 struct net_device *netdev, const u8 *addr,
9408 gfp_t gfp)
1965c853 9409{
e6d6e342
JB		 9410 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9411 addr, gfp);
1965c853
JM		 9412}
9413
b23aa676
SO		 9414void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9415 struct net_device *netdev, const u8 *bssid,
9416 const u8 *req_ie, size_t req_ie_len,
9417 const u8 *resp_ie, size_t resp_ie_len,
9418 u16 status, gfp_t gfp)
9419{
9420 struct sk_buff *msg;
9421 void *hdr;
9422
58050fce 9423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9424 if (!msg)
9425 return;
9426
9427 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9428 if (!hdr) {
9429 nlmsg_free(msg);
9430 return;
9431 }
9432
9360ffd1
DM		 9433 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9434 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9435 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9436 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9437 (req_ie &&
9438 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9439 (resp_ie &&
9440 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9441 goto nla_put_failure;
b23aa676 9442
3b7b72ee 9443 genlmsg_end(msg, hdr);
b23aa676 9444
463d0183
JB		 9445 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9446 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9447 return;
9448
9449 nla_put_failure:
9450 genlmsg_cancel(msg, hdr);
9451 nlmsg_free(msg);
9452
9453}
9454
9455void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9456 struct net_device *netdev, const u8 *bssid,
9457 const u8 *req_ie, size_t req_ie_len,
9458 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9459{
9460 struct sk_buff *msg;
9461 void *hdr;
9462
58050fce 9463 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9464 if (!msg)
9465 return;
9466
9467 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9468 if (!hdr) {
9469 nlmsg_free(msg);
9470 return;
9471 }
9472
9360ffd1
DM		 9473 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9474 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9475 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9476 (req_ie &&
9477 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9478 (resp_ie &&
9479 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9480 goto nla_put_failure;
b23aa676 9481
3b7b72ee 9482 genlmsg_end(msg, hdr);
b23aa676 9483
463d0183
JB		 9484 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9485 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9486 return;
9487
9488 nla_put_failure:
9489 genlmsg_cancel(msg, hdr);
9490 nlmsg_free(msg);
9491
9492}
9493
9494void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9495 struct net_device *netdev, u16 reason,
667503dd 9496 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9497{
9498 struct sk_buff *msg;
9499 void *hdr;
9500
58050fce 9501 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9502 if (!msg)
9503 return;
9504
9505 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9506 if (!hdr) {
9507 nlmsg_free(msg);
9508 return;
9509 }
9510
9360ffd1
DM		 9511 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9512 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9513 (from_ap && reason &&
9514 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9515 (from_ap &&
9516 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9517 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9518 goto nla_put_failure;
b23aa676 9519
3b7b72ee 9520 genlmsg_end(msg, hdr);
b23aa676 9521
463d0183
JB		 9522 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9523 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9524 return;
9525
9526 nla_put_failure:
9527 genlmsg_cancel(msg, hdr);
9528 nlmsg_free(msg);
9529
9530}
9531
04a773ad
JB		 9532void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9533 struct net_device *netdev, const u8 *bssid,
9534 gfp_t gfp)
9535{
9536 struct sk_buff *msg;
9537 void *hdr;
9538
fd2120ca 9539 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9540 if (!msg)
9541 return;
9542
9543 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9544 if (!hdr) {
9545 nlmsg_free(msg);
9546 return;
9547 }
9548
9360ffd1
DM		 9549 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9550 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9551 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9552 goto nla_put_failure;
04a773ad 9553
3b7b72ee 9554 genlmsg_end(msg, hdr);
04a773ad 9555
463d0183
JB		 9556 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9557 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9558 return;
9559
9560 nla_put_failure:
9561 genlmsg_cancel(msg, hdr);
9562 nlmsg_free(msg);
9563}
9564
947add36
JB		 9565void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9566 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9567{
947add36
JB		 9568 struct wireless_dev *wdev = dev->ieee80211_ptr;
9569 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9570 struct sk_buff *msg;
9571 void *hdr;
9572
947add36
JB		 9573 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9574 return;
9575
9576 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9577
c93b5e71
JC		 9578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9579 if (!msg)
9580 return;
9581
9582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9583 if (!hdr) {
9584 nlmsg_free(msg);
9585 return;
9586 }
9587
9360ffd1 9588 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9589 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9590 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9591 (ie_len && ie &&
9592 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9593 goto nla_put_failure;
c93b5e71 9594
3b7b72ee 9595 genlmsg_end(msg, hdr);
c93b5e71
JC		 9596
9597 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9598 nl80211_mlme_mcgrp.id, gfp);
9599 return;
9600
9601 nla_put_failure:
9602 genlmsg_cancel(msg, hdr);
9603 nlmsg_free(msg);
9604}
947add36 9605EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9606
a3b8b056
JM		 9607void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9608 struct net_device *netdev, const u8 *addr,
9609 enum nl80211_key_type key_type, int key_id,
e6d6e342 9610 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9611{
9612 struct sk_buff *msg;
9613 void *hdr;
9614
e6d6e342 9615 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9616 if (!msg)
9617 return;
9618
9619 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9620 if (!hdr) {
9621 nlmsg_free(msg);
9622 return;
9623 }
9624
9360ffd1
DM		 9625 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9626 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9627 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9628 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9629 (key_id != -1 &&
9630 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9631 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9632 goto nla_put_failure;
a3b8b056 9633
3b7b72ee 9634 genlmsg_end(msg, hdr);
a3b8b056 9635
463d0183
JB		 9636 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9637 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9638 return;
9639
9640 nla_put_failure:
9641 genlmsg_cancel(msg, hdr);
9642 nlmsg_free(msg);
9643}
9644
6bad8766
LR		 9645void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9646 struct ieee80211_channel *channel_before,
9647 struct ieee80211_channel *channel_after)
9648{
9649 struct sk_buff *msg;
9650 void *hdr;
9651 struct nlattr *nl_freq;
9652
fd2120ca 9653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9654 if (!msg)
9655 return;
9656
9657 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9658 if (!hdr) {
9659 nlmsg_free(msg);
9660 return;
9661 }
9662
9663 /*
9664 * Since we are applying the beacon hint to a wiphy we know its
9665 * wiphy_idx is valid
9666 */
9360ffd1
DM		 9667 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9668 goto nla_put_failure;
6bad8766
LR		 9669
9670 /* Before */
9671 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9672 if (!nl_freq)
9673 goto nla_put_failure;
cdc89b97 9674 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 9675 goto nla_put_failure;
9676 nla_nest_end(msg, nl_freq);
9677
9678 /* After */
9679 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9680 if (!nl_freq)
9681 goto nla_put_failure;
cdc89b97 9682 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 9683 goto nla_put_failure;
9684 nla_nest_end(msg, nl_freq);
9685
3b7b72ee 9686 genlmsg_end(msg, hdr);
6bad8766 9687
463d0183
JB		 9688 rcu_read_lock();
9689 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9690 GFP_ATOMIC);
9691 rcu_read_unlock();
6bad8766
LR		 9692
9693 return;
9694
9695nla_put_failure:
9696 genlmsg_cancel(msg, hdr);
9697 nlmsg_free(msg);
9698}
9699
9588bbd5
JM		 9700static void nl80211_send_remain_on_chan_event(
9701 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9702 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9703 struct ieee80211_channel *chan,
9588bbd5
JM		 9704 unsigned int duration, gfp_t gfp)
9705{
9706 struct sk_buff *msg;
9707 void *hdr;
9708
9709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9710 if (!msg)
9711 return;
9712
9713 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9714 if (!hdr) {
9715 nlmsg_free(msg);
9716 return;
9717 }
9718
9360ffd1 9719 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9720 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9721 wdev->netdev->ifindex)) ||
00f53350 9722 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9723 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9724 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9725 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9726 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9727 goto nla_put_failure;
9588bbd5 9728
9360ffd1
DM		 9729 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9730 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9731 goto nla_put_failure;
9588bbd5 9732
3b7b72ee 9733 genlmsg_end(msg, hdr);
9588bbd5
JM		 9734
9735 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9736 nl80211_mlme_mcgrp.id, gfp);
9737 return;
9738
9739 nla_put_failure:
9740 genlmsg_cancel(msg, hdr);
9741 nlmsg_free(msg);
9742}
9743
947add36
JB		 9744void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9745 struct ieee80211_channel *chan,
9746 unsigned int duration, gfp_t gfp)
9588bbd5 9747{
947add36
JB		 9748 struct wiphy *wiphy = wdev->wiphy;
9749 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9750
9751 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 9752 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9753 rdev, wdev, cookie, chan,
42d97a59 9754 duration, gfp);
9588bbd5 9755}
947add36 9756EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 9757
947add36
JB		 9758void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9759 struct ieee80211_channel *chan,
9760 gfp_t gfp)
9588bbd5 9761{
947add36
JB		 9762 struct wiphy *wiphy = wdev->wiphy;
9763 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9764
9765 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 9766 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9767 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 9768}
947add36 9769EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 9770
947add36
JB		 9771void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9772 struct station_info *sinfo, gfp_t gfp)
98b62183 9773{
947add36
JB		 9774 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9775 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 9776 struct sk_buff *msg;
9777
947add36
JB		 9778 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9779
58050fce 9780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9781 if (!msg)
9782 return;
9783
66266b3a
JL		 9784 if (nl80211_send_station(msg, 0, 0, 0,
9785 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9786 nlmsg_free(msg);
9787 return;
9788 }
9789
9790 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9791 nl80211_mlme_mcgrp.id, gfp);
9792}
947add36 9793EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 9794
947add36 9795void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 9796{
947add36
JB		 9797 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9798 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 9799 struct sk_buff *msg;
9800 void *hdr;
9801
947add36
JB		 9802 trace_cfg80211_del_sta(dev, mac_addr);
9803
58050fce 9804 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9805 if (!msg)
9806 return;
9807
9808 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9809 if (!hdr) {
9810 nlmsg_free(msg);
9811 return;
9812 }
9813
9360ffd1
DM		 9814 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9815 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9816 goto nla_put_failure;
ec15e68b 9817
3b7b72ee 9818 genlmsg_end(msg, hdr);
ec15e68b
JM		 9819
9820 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9821 nl80211_mlme_mcgrp.id, gfp);
9822 return;
9823
9824 nla_put_failure:
9825 genlmsg_cancel(msg, hdr);
9826 nlmsg_free(msg);
9827}
947add36 9828EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 9829
947add36
JB		 9830void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9831 enum nl80211_connect_failed_reason reason,
9832 gfp_t gfp)
ed44a951 9833{
947add36
JB		 9834 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9835 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 9836 struct sk_buff *msg;
9837 void *hdr;
9838
9839 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9840 if (!msg)
9841 return;
9842
9843 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9844 if (!hdr) {
9845 nlmsg_free(msg);
9846 return;
9847 }
9848
9849 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9850 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9851 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9852 goto nla_put_failure;
9853
9854 genlmsg_end(msg, hdr);
9855
9856 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9857 nl80211_mlme_mcgrp.id, gfp);
9858 return;
9859
9860 nla_put_failure:
9861 genlmsg_cancel(msg, hdr);
9862 nlmsg_free(msg);
9863}
947add36 9864EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 9865
b92ab5d8
JB		 9866static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9867 const u8 *addr, gfp_t gfp)
28946da7
JB		 9868{
9869 struct wireless_dev *wdev = dev->ieee80211_ptr;
9870 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9871 struct sk_buff *msg;
9872 void *hdr;
9873 int err;
15e47304 9874 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9875
15e47304 9876 if (!nlportid)
28946da7
JB		 9877 return false;
9878
9879 msg = nlmsg_new(100, gfp);
9880 if (!msg)
9881 return true;
9882
b92ab5d8 9883 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9884 if (!hdr) {
9885 nlmsg_free(msg);
9886 return true;
9887 }
9888
9360ffd1
DM		 9889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9890 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9891 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9892 goto nla_put_failure;
28946da7
JB		 9893
9894 err = genlmsg_end(msg, hdr);
9895 if (err < 0) {
9896 nlmsg_free(msg);
9897 return true;
9898 }
9899
15e47304 9900 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9901 return true;
9902
9903 nla_put_failure:
9904 genlmsg_cancel(msg, hdr);
9905 nlmsg_free(msg);
9906 return true;
9907}
9908
947add36
JB		 9909bool cfg80211_rx_spurious_frame(struct net_device *dev,
9910 const u8 *addr, gfp_t gfp)
b92ab5d8 9911{
947add36
JB		 9912 struct wireless_dev *wdev = dev->ieee80211_ptr;
9913 bool ret;
9914
9915 trace_cfg80211_rx_spurious_frame(dev, addr);
9916
9917 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9918 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9919 trace_cfg80211_return_bool(false);
9920 return false;
9921 }
9922 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9923 addr, gfp);
9924 trace_cfg80211_return_bool(ret);
9925 return ret;
b92ab5d8 9926}
947add36 9927EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 9928
947add36
JB		 9929bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9930 const u8 *addr, gfp_t gfp)
b92ab5d8 9931{
947add36
JB		 9932 struct wireless_dev *wdev = dev->ieee80211_ptr;
9933 bool ret;
9934
9935 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9936
9937 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9938 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9939 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9940 trace_cfg80211_return_bool(false);
9941 return false;
9942 }
9943 ret = __nl80211_unexpected_frame(dev,
9944 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9945 addr, gfp);
9946 trace_cfg80211_return_bool(ret);
9947 return ret;
b92ab5d8 9948}
947add36 9949EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 9950
2e161f78 9951int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9952 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9953 int freq, int sig_dbm,
9954 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9955{
71bbc994 9956 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9957 struct sk_buff *msg;
9958 void *hdr;
026331c4
JM		 9959
9960 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9961 if (!msg)
9962 return -ENOMEM;
9963
2e161f78 9964 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9965 if (!hdr) {
9966 nlmsg_free(msg);
9967 return -ENOMEM;
9968 }
9969
9360ffd1 9970 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9971 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9972 netdev->ifindex)) ||
9360ffd1
DM		 9973 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9974 (sig_dbm &&
9975 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9976 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9977 goto nla_put_failure;
026331c4 9978
3b7b72ee 9979 genlmsg_end(msg, hdr);
026331c4 9980
15e47304 9981 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9982
9983 nla_put_failure:
9984 genlmsg_cancel(msg, hdr);
9985 nlmsg_free(msg);
9986 return -ENOBUFS;
9987}
9988
947add36
JB		 9989void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9990 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 9991{
947add36
JB		 9992 struct wiphy *wiphy = wdev->wiphy;
9993 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 9994 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9995 struct sk_buff *msg;
9996 void *hdr;
9997
947add36
JB		 9998 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
9999
026331c4
JM		 10000 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10001 if (!msg)
10002 return;
10003
2e161f78 10004 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10005 if (!hdr) {
10006 nlmsg_free(msg);
10007 return;
10008 }
10009
9360ffd1 10010 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10011 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10012 netdev->ifindex)) ||
9360ffd1
DM		 10013 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10014 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10015 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10016 goto nla_put_failure;
026331c4 10017
3b7b72ee 10018 genlmsg_end(msg, hdr);
026331c4
JM		 10019
10020 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10021 return;
10022
10023 nla_put_failure:
10024 genlmsg_cancel(msg, hdr);
10025 nlmsg_free(msg);
10026}
947add36 10027EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10028
947add36
JB		 10029void cfg80211_cqm_rssi_notify(struct net_device *dev,
10030 enum nl80211_cqm_rssi_threshold_event rssi_event,
10031 gfp_t gfp)
d6dc1a38 10032{
947add36
JB		 10033 struct wireless_dev *wdev = dev->ieee80211_ptr;
10034 struct wiphy *wiphy = wdev->wiphy;
10035 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10036 struct sk_buff *msg;
10037 struct nlattr *pinfoattr;
10038 void *hdr;
10039
947add36
JB		 10040 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10041
58050fce 10042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10043 if (!msg)
10044 return;
10045
10046 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10047 if (!hdr) {
10048 nlmsg_free(msg);
10049 return;
10050 }
10051
9360ffd1 10052 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10053 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10054 goto nla_put_failure;
d6dc1a38
JO		 10055
10056 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10057 if (!pinfoattr)
10058 goto nla_put_failure;
10059
9360ffd1
DM		 10060 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10061 rssi_event))
10062 goto nla_put_failure;
d6dc1a38
JO		 10063
10064 nla_nest_end(msg, pinfoattr);
10065
3b7b72ee 10066 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10067
10068 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10069 nl80211_mlme_mcgrp.id, gfp);
10070 return;
10071
10072 nla_put_failure:
10073 genlmsg_cancel(msg, hdr);
10074 nlmsg_free(msg);
10075}
947add36 10076EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10077
947add36
JB		 10078static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10079 struct net_device *netdev, const u8 *bssid,
10080 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10081{
10082 struct sk_buff *msg;
10083 struct nlattr *rekey_attr;
10084 void *hdr;
10085
58050fce 10086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10087 if (!msg)
10088 return;
10089
10090 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10091 if (!hdr) {
10092 nlmsg_free(msg);
10093 return;
10094 }
10095
9360ffd1
DM		 10096 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10097 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10098 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10099 goto nla_put_failure;
e5497d76
JB		 10100
10101 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10102 if (!rekey_attr)
10103 goto nla_put_failure;
10104
9360ffd1
DM		 10105 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10106 NL80211_REPLAY_CTR_LEN, replay_ctr))
10107 goto nla_put_failure;
e5497d76
JB		 10108
10109 nla_nest_end(msg, rekey_attr);
10110
3b7b72ee 10111 genlmsg_end(msg, hdr);
e5497d76
JB		 10112
10113 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10114 nl80211_mlme_mcgrp.id, gfp);
10115 return;
10116
10117 nla_put_failure:
10118 genlmsg_cancel(msg, hdr);
10119 nlmsg_free(msg);
10120}
10121
947add36
JB		 10122void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10123 const u8 *replay_ctr, gfp_t gfp)
10124{
10125 struct wireless_dev *wdev = dev->ieee80211_ptr;
10126 struct wiphy *wiphy = wdev->wiphy;
10127 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10128
10129 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10130 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10131}
10132EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10133
10134static void
10135nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10136 struct net_device *netdev, int index,
10137 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10138{
10139 struct sk_buff *msg;
10140 struct nlattr *attr;
10141 void *hdr;
10142
58050fce 10143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10144 if (!msg)
10145 return;
10146
10147 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10148 if (!hdr) {
10149 nlmsg_free(msg);
10150 return;
10151 }
10152
9360ffd1
DM		 10153 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10154 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10155 goto nla_put_failure;
c9df56b4
JM		 10156
10157 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10158 if (!attr)
10159 goto nla_put_failure;
10160
9360ffd1
DM		 10161 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10162 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10163 (preauth &&
10164 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10165 goto nla_put_failure;
c9df56b4
JM		 10166
10167 nla_nest_end(msg, attr);
10168
3b7b72ee 10169 genlmsg_end(msg, hdr);
c9df56b4
JM		 10170
10171 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10172 nl80211_mlme_mcgrp.id, gfp);
10173 return;
10174
10175 nla_put_failure:
10176 genlmsg_cancel(msg, hdr);
10177 nlmsg_free(msg);
10178}
10179
947add36
JB		 10180void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10181 const u8 *bssid, bool preauth, gfp_t gfp)
10182{
10183 struct wireless_dev *wdev = dev->ieee80211_ptr;
10184 struct wiphy *wiphy = wdev->wiphy;
10185 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10186
10187 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10188 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10189}
10190EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10191
10192static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10193 struct net_device *netdev,
10194 struct cfg80211_chan_def *chandef,
10195 gfp_t gfp)
5314526b
TP		 10196{
10197 struct sk_buff *msg;
10198 void *hdr;
10199
58050fce 10200 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10201 if (!msg)
10202 return;
10203
10204 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10205 if (!hdr) {
10206 nlmsg_free(msg);
10207 return;
10208 }
10209
683b6d3b
JB		 10210 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10211 goto nla_put_failure;
10212
10213 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10214 goto nla_put_failure;
5314526b
TP		 10215
10216 genlmsg_end(msg, hdr);
10217
10218 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10219 nl80211_mlme_mcgrp.id, gfp);
10220 return;
10221
10222 nla_put_failure:
10223 genlmsg_cancel(msg, hdr);
10224 nlmsg_free(msg);
10225}
10226
947add36
JB		 10227void cfg80211_ch_switch_notify(struct net_device *dev,
10228 struct cfg80211_chan_def *chandef)
84f10708 10229{
947add36
JB		 10230 struct wireless_dev *wdev = dev->ieee80211_ptr;
10231 struct wiphy *wiphy = wdev->wiphy;
10232 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10233
10234 trace_cfg80211_ch_switch_notify(dev, chandef);
10235
10236 wdev_lock(wdev);
10237
10238 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10239 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10240 goto out;
10241
10242 wdev->channel = chandef->chan;
10243 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10244out:
10245 wdev_unlock(wdev);
10246 return;
10247}
10248EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10249
10250void cfg80211_cqm_txe_notify(struct net_device *dev,
10251 const u8 *peer, u32 num_packets,
10252 u32 rate, u32 intvl, gfp_t gfp)
10253{
10254 struct wireless_dev *wdev = dev->ieee80211_ptr;
10255 struct wiphy *wiphy = wdev->wiphy;
10256 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10257 struct sk_buff *msg;
10258 struct nlattr *pinfoattr;
10259 void *hdr;
10260
10261 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10262 if (!msg)
10263 return;
10264
10265 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10266 if (!hdr) {
10267 nlmsg_free(msg);
10268 return;
10269 }
10270
10271 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10272 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10273 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10274 goto nla_put_failure;
10275
10276 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10277 if (!pinfoattr)
10278 goto nla_put_failure;
10279
10280 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10281 goto nla_put_failure;
10282
10283 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10284 goto nla_put_failure;
10285
10286 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10287 goto nla_put_failure;
10288
10289 nla_nest_end(msg, pinfoattr);
10290
10291 genlmsg_end(msg, hdr);
10292
10293 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10294 nl80211_mlme_mcgrp.id, gfp);
10295 return;
10296
10297 nla_put_failure:
10298 genlmsg_cancel(msg, hdr);
10299 nlmsg_free(msg);
10300}
947add36 10301EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10302
04f39047
SW		 10303void
10304nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10305 struct cfg80211_chan_def *chandef,
10306 enum nl80211_radar_event event,
10307 struct net_device *netdev, gfp_t gfp)
10308{
10309 struct sk_buff *msg;
10310 void *hdr;
10311
10312 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10313 if (!msg)
10314 return;
10315
10316 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10317 if (!hdr) {
10318 nlmsg_free(msg);
10319 return;
10320 }
10321
10322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10323 goto nla_put_failure;
10324
10325 /* NOP and radar events don't need a netdev parameter */
10326 if (netdev) {
10327 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10328
10329 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10330 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10331 goto nla_put_failure;
10332 }
10333
10334 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10335 goto nla_put_failure;
10336
10337 if (nl80211_send_chandef(msg, chandef))
10338 goto nla_put_failure;
10339
10340 if (genlmsg_end(msg, hdr) < 0) {
10341 nlmsg_free(msg);
10342 return;
10343 }
10344
10345 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10346 nl80211_mlme_mcgrp.id, gfp);
10347 return;
10348
10349 nla_put_failure:
10350 genlmsg_cancel(msg, hdr);
10351 nlmsg_free(msg);
10352}
10353
947add36
JB		 10354void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10355 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10356{
947add36
JB		 10357 struct wireless_dev *wdev = dev->ieee80211_ptr;
10358 struct wiphy *wiphy = wdev->wiphy;
10359 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10360 struct sk_buff *msg;
10361 struct nlattr *pinfoattr;
10362 void *hdr;
10363
947add36
JB		 10364 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10365
58050fce 10366 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10367 if (!msg)
10368 return;
10369
10370 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10371 if (!hdr) {
10372 nlmsg_free(msg);
10373 return;
10374 }
10375
9360ffd1 10376 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10377 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10378 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10379 goto nla_put_failure;
c063dbf5
JB		 10380
10381 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10382 if (!pinfoattr)
10383 goto nla_put_failure;
10384
9360ffd1
DM		 10385 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10386 goto nla_put_failure;
c063dbf5
JB		 10387
10388 nla_nest_end(msg, pinfoattr);
10389
3b7b72ee 10390 genlmsg_end(msg, hdr);
c063dbf5
JB		 10391
10392 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10393 nl80211_mlme_mcgrp.id, gfp);
10394 return;
10395
10396 nla_put_failure:
10397 genlmsg_cancel(msg, hdr);
10398 nlmsg_free(msg);
10399}
947add36 10400EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10401
7f6cf311
JB		 10402void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10403 u64 cookie, bool acked, gfp_t gfp)
10404{
10405 struct wireless_dev *wdev = dev->ieee80211_ptr;
10406 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10407 struct sk_buff *msg;
10408 void *hdr;
10409 int err;
10410
4ee3e063
BL		 10411 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10412
58050fce 10413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10414
7f6cf311
JB		 10415 if (!msg)
10416 return;
10417
10418 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10419 if (!hdr) {
10420 nlmsg_free(msg);
10421 return;
10422 }
10423
9360ffd1
DM		 10424 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10425 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10426 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10427 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10428 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10429 goto nla_put_failure;
7f6cf311
JB		 10430
10431 err = genlmsg_end(msg, hdr);
10432 if (err < 0) {
10433 nlmsg_free(msg);
10434 return;
10435 }
10436
10437 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10438 nl80211_mlme_mcgrp.id, gfp);
10439 return;
10440
10441 nla_put_failure:
10442 genlmsg_cancel(msg, hdr);
10443 nlmsg_free(msg);
10444}
10445EXPORT_SYMBOL(cfg80211_probe_status);
10446
5e760230
JB		 10447void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10448 const u8 *frame, size_t len,
37c73b5f 10449 int freq, int sig_dbm)
5e760230
JB		 10450{
10451 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10452 struct sk_buff *msg;
10453 void *hdr;
37c73b5f 10454 struct cfg80211_beacon_registration *reg;
5e760230 10455
4ee3e063
BL		 10456 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10457
37c73b5f
BG		 10458 spin_lock_bh(&rdev->beacon_registrations_lock);
10459 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10460 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10461 if (!msg) {
10462 spin_unlock_bh(&rdev->beacon_registrations_lock);
10463 return;
10464 }
5e760230 10465
37c73b5f
BG		 10466 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10467 if (!hdr)
10468 goto nla_put_failure;
5e760230 10469
37c73b5f
BG		 10470 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10471 (freq &&
10472 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10473 (sig_dbm &&
10474 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10475 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10476 goto nla_put_failure;
5e760230 10477
37c73b5f 10478 genlmsg_end(msg, hdr);
5e760230 10479
37c73b5f
BG		 10480 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10481 }
10482 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10483 return;
10484
10485 nla_put_failure:
37c73b5f
BG		 10486 spin_unlock_bh(&rdev->beacon_registrations_lock);
10487 if (hdr)
10488 genlmsg_cancel(msg, hdr);
5e760230
JB		 10489 nlmsg_free(msg);
10490}
10491EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10492
cd8f7cb4
JB		 10493#ifdef CONFIG_PM
10494void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10495 struct cfg80211_wowlan_wakeup *wakeup,
10496 gfp_t gfp)
10497{
10498 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10499 struct sk_buff *msg;
10500 void *hdr;
10501 int err, size = 200;
10502
10503 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10504
10505 if (wakeup)
10506 size += wakeup->packet_present_len;
10507
10508 msg = nlmsg_new(size, gfp);
10509 if (!msg)
10510 return;
10511
10512 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10513 if (!hdr)
10514 goto free_msg;
10515
10516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10517 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10518 goto free_msg;
10519
10520 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10521 wdev->netdev->ifindex))
10522 goto free_msg;
10523
10524 if (wakeup) {
10525 struct nlattr *reasons;
10526
10527 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10528
10529 if (wakeup->disconnect &&
10530 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10531 goto free_msg;
10532 if (wakeup->magic_pkt &&
10533 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10534 goto free_msg;
10535 if (wakeup->gtk_rekey_failure &&
10536 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10537 goto free_msg;
10538 if (wakeup->eap_identity_req &&
10539 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10540 goto free_msg;
10541 if (wakeup->four_way_handshake &&
10542 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10543 goto free_msg;
10544 if (wakeup->rfkill_release &&
10545 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10546 goto free_msg;
10547
10548 if (wakeup->pattern_idx >= 0 &&
10549 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10550 wakeup->pattern_idx))
10551 goto free_msg;
10552
2a0e047e
JB		 10553 if (wakeup->tcp_match)
10554 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10555
10556 if (wakeup->tcp_connlost)
10557 nla_put_flag(msg,
10558 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10559
10560 if (wakeup->tcp_nomoretokens)
10561 nla_put_flag(msg,
10562 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10563
cd8f7cb4
JB		 10564 if (wakeup->packet) {
10565 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10566 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10567
10568 if (!wakeup->packet_80211) {
10569 pkt_attr =
10570 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10571 len_attr =
10572 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10573 }
10574
10575 if (wakeup->packet_len &&
10576 nla_put_u32(msg, len_attr, wakeup->packet_len))
10577 goto free_msg;
10578
10579 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10580 wakeup->packet))
10581 goto free_msg;
10582 }
10583
10584 nla_nest_end(msg, reasons);
10585 }
10586
10587 err = genlmsg_end(msg, hdr);
10588 if (err < 0)
10589 goto free_msg;
10590
10591 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10592 nl80211_mlme_mcgrp.id, gfp);
10593 return;
10594
10595 free_msg:
10596 nlmsg_free(msg);
10597}
10598EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10599#endif
10600
3475b094
JM		 10601void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10602 enum nl80211_tdls_operation oper,
10603 u16 reason_code, gfp_t gfp)
10604{
10605 struct wireless_dev *wdev = dev->ieee80211_ptr;
10606 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10607 struct sk_buff *msg;
10608 void *hdr;
10609 int err;
10610
10611 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10612 reason_code);
10613
10614 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10615 if (!msg)
10616 return;
10617
10618 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10619 if (!hdr) {
10620 nlmsg_free(msg);
10621 return;
10622 }
10623
10624 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10625 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10626 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10627 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10628 (reason_code > 0 &&
10629 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10630 goto nla_put_failure;
10631
10632 err = genlmsg_end(msg, hdr);
10633 if (err < 0) {
10634 nlmsg_free(msg);
10635 return;
10636 }
10637
10638 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10639 nl80211_mlme_mcgrp.id, gfp);
10640 return;
10641
10642 nla_put_failure:
10643 genlmsg_cancel(msg, hdr);
10644 nlmsg_free(msg);
10645}
10646EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10647
026331c4
JM		 10648static int nl80211_netlink_notify(struct notifier_block * nb,
10649 unsigned long state,
10650 void *_notify)
10651{
10652 struct netlink_notify *notify = _notify;
10653 struct cfg80211_registered_device *rdev;
10654 struct wireless_dev *wdev;
37c73b5f 10655 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10656
10657 if (state != NETLINK_URELEASE)
10658 return NOTIFY_DONE;
10659
10660 rcu_read_lock();
10661
5e760230 10662 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10663 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10664 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10665
10666 spin_lock_bh(&rdev->beacon_registrations_lock);
10667 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10668 list) {
10669 if (reg->nlportid == notify->portid) {
10670 list_del(&reg->list);
10671 kfree(reg);
10672 break;
10673 }
10674 }
10675 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10676 }
026331c4
JM		 10677
10678 rcu_read_unlock();
10679
10680 return NOTIFY_DONE;
10681}
10682
10683static struct notifier_block nl80211_netlink_notifier = {
10684 .notifier_call = nl80211_netlink_notify,
10685};
10686
355199e0
JM		 10687void cfg80211_ft_event(struct net_device *netdev,
10688 struct cfg80211_ft_event_params *ft_event)
10689{
10690 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10691 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10692 struct sk_buff *msg;
10693 void *hdr;
10694 int err;
10695
10696 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10697
10698 if (!ft_event->target_ap)
10699 return;
10700
10701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10702 if (!msg)
10703 return;
10704
10705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10706 if (!hdr) {
10707 nlmsg_free(msg);
10708 return;
10709 }
10710
10711 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10712 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10713 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10714 if (ft_event->ies)
10715 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10716 if (ft_event->ric_ies)
10717 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10718 ft_event->ric_ies);
10719
10720 err = genlmsg_end(msg, hdr);
10721 if (err < 0) {
10722 nlmsg_free(msg);
10723 return;
10724 }
10725
10726 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10727 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10728}
10729EXPORT_SYMBOL(cfg80211_ft_event);
10730
5de17984
AS		 10731void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10732{
10733 struct cfg80211_registered_device *rdev;
10734 struct sk_buff *msg;
10735 void *hdr;
10736 u32 nlportid;
10737
10738 rdev = wiphy_to_dev(wdev->wiphy);
10739 if (!rdev->crit_proto_nlportid)
10740 return;
10741
10742 nlportid = rdev->crit_proto_nlportid;
10743 rdev->crit_proto_nlportid = 0;
10744
10745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10746 if (!msg)
10747 return;
10748
10749 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10750 if (!hdr)
10751 goto nla_put_failure;
10752
10753 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10754 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10755 goto nla_put_failure;
10756
10757 genlmsg_end(msg, hdr);
10758
10759 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10760 return;
10761
10762 nla_put_failure:
10763 if (hdr)
10764 genlmsg_cancel(msg, hdr);
10765 nlmsg_free(msg);
10766
10767}
10768EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10769
55682965
JB		 10770/* initialisation/exit functions */
10771
10772int nl80211_init(void)
10773{
0d63cbb5 10774 int err;
55682965 10775
0d63cbb5
MM		 10776 err = genl_register_family_with_ops(&nl80211_fam,
10777 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10778 if (err)
10779 return err;
10780
55682965
JB		 10781 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10782 if (err)
10783 goto err_out;
10784
2a519311
JB		 10785 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10786 if (err)
10787 goto err_out;
10788
73d54c9e
LR		 10789 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10790 if (err)
10791 goto err_out;
10792
6039f6d2
JM		 10793 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10794 if (err)
10795 goto err_out;
10796
aff89a9b
JB		 10797#ifdef CONFIG_NL80211_TESTMODE
10798 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10799 if (err)
10800 goto err_out;
10801#endif
10802
026331c4
JM		 10803 err = netlink_register_notifier(&nl80211_netlink_notifier);
10804 if (err)
10805 goto err_out;
10806
55682965
JB		 10807 return 0;
10808 err_out:
10809 genl_unregister_family(&nl80211_fam);
10810 return err;
10811}
10812
10813void nl80211_exit(void)
10814{
026331c4 10815 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10816 genl_unregister_family(&nl80211_fam);
10817}
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