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mac80211: add VHT capabilities station debugfs file
[mirror_ubuntu-hirsute-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
a043897a
HS		 450/* ifidx get helper */
451static int nl80211_get_ifidx(struct netlink_callback *cb)
452{
453 int res;
454
455 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
456 nl80211_fam.attrbuf, nl80211_fam.maxattr,
457 nl80211_policy);
458 if (res)
459 return res;
460
461 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
462 return -EINVAL;
463
464 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
465 if (!res)
466 return -EINVAL;
467 return res;
468}
469
67748893
JB		 470static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
471 struct netlink_callback *cb,
472 struct cfg80211_registered_device **rdev,
473 struct net_device **dev)
474{
475 int ifidx = cb->args[0];
476 int err;
477
478 if (!ifidx)
479 ifidx = nl80211_get_ifidx(cb);
480 if (ifidx < 0)
481 return ifidx;
482
483 cb->args[0] = ifidx;
484
485 rtnl_lock();
486
487 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
488 if (!*dev) {
489 err = -ENODEV;
490 goto out_rtnl;
491 }
492
493 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 494 if (IS_ERR(*rdev)) {
495 err = PTR_ERR(*rdev);
67748893
JB		 496 goto out_rtnl;
497 }
498
499 return 0;
500 out_rtnl:
501 rtnl_unlock();
502 return err;
503}
504
505static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
506{
507 cfg80211_unlock_rdev(rdev);
508 rtnl_unlock();
509}
510
f4a11bb0
JB		 511/* IE validation */
512static bool is_valid_ie_attr(const struct nlattr *attr)
513{
514 const u8 *pos;
515 int len;
516
517 if (!attr)
518 return true;
519
520 pos = nla_data(attr);
521 len = nla_len(attr);
522
523 while (len) {
524 u8 elemlen;
525
526 if (len < 2)
527 return false;
528 len -= 2;
529
530 elemlen = pos[1];
531 if (elemlen > len)
532 return false;
533
534 len -= elemlen;
535 pos += 2 + elemlen;
536 }
537
538 return true;
539}
540
55682965 541/* message building helper */
15e47304 542static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 543 int flags, u8 cmd)
544{
545 /* since there is no private header just add the generic one */
15e47304 546 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 547}
548
5dab3b8a 549static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 550 struct ieee80211_channel *chan,
551 bool large)
5dab3b8a 552{
9360ffd1
DM		 553 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
554 chan->center_freq))
555 goto nla_put_failure;
5dab3b8a 556
9360ffd1
DM		 557 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
559 goto nla_put_failure;
560 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
561 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
562 goto nla_put_failure;
563 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
564 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
565 goto nla_put_failure;
cdc89b97
JB		 566 if (chan->flags & IEEE80211_CHAN_RADAR) {
567 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
568 goto nla_put_failure;
569 if (large) {
570 u32 time;
571
572 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
573
574 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
575 chan->dfs_state))
576 goto nla_put_failure;
577 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
578 time))
579 goto nla_put_failure;
580 }
581 }
5dab3b8a 582
fe1abafd
JB		 583 if (large) {
584 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
585 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
586 goto nla_put_failure;
587 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
588 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
589 goto nla_put_failure;
590 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
591 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
592 goto nla_put_failure;
593 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
594 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
595 goto nla_put_failure;
596 }
597
9360ffd1
DM		 598 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
599 DBM_TO_MBM(chan->max_power)))
600 goto nla_put_failure;
5dab3b8a
LR		 601
602 return 0;
603
604 nla_put_failure:
605 return -ENOBUFS;
606}
607
55682965
JB		 608/* netlink command implementations */
609
b9454e83
JB		 610struct key_parse {
611 struct key_params p;
612 int idx;
e31b8213 613 int type;
b9454e83 614 bool def, defmgmt;
dbd2fd65 615 bool def_uni, def_multi;
b9454e83
JB		 616};
617
618static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
619{
620 struct nlattr *tb[NL80211_KEY_MAX + 1];
621 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
622 nl80211_key_policy);
623 if (err)
624 return err;
625
626 k->def = !!tb[NL80211_KEY_DEFAULT];
627 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
628
dbd2fd65
JB		 629 if (k->def) {
630 k->def_uni = true;
631 k->def_multi = true;
632 }
633 if (k->defmgmt)
634 k->def_multi = true;
635
b9454e83
JB		 636 if (tb[NL80211_KEY_IDX])
637 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
638
639 if (tb[NL80211_KEY_DATA]) {
640 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
641 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
642 }
643
644 if (tb[NL80211_KEY_SEQ]) {
645 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
646 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
647 }
648
649 if (tb[NL80211_KEY_CIPHER])
650 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
651
e31b8213
JB		 652 if (tb[NL80211_KEY_TYPE]) {
653 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
654 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
655 return -EINVAL;
656 }
657
dbd2fd65
JB		 658 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
659 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 660 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
661 tb[NL80211_KEY_DEFAULT_TYPES],
662 nl80211_key_default_policy);
dbd2fd65
JB		 663 if (err)
664 return err;
665
666 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
667 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
668 }
669
b9454e83
JB		 670 return 0;
671}
672
673static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
674{
675 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
676 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
677 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
678 }
679
680 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
681 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
682 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
683 }
684
685 if (info->attrs[NL80211_ATTR_KEY_IDX])
686 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
687
688 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
689 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
690
691 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
692 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
693
dbd2fd65
JB		 694 if (k->def) {
695 k->def_uni = true;
696 k->def_multi = true;
697 }
698 if (k->defmgmt)
699 k->def_multi = true;
700
e31b8213
JB		 701 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
702 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
703 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
704 return -EINVAL;
705 }
706
dbd2fd65
JB		 707 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
708 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
709 int err = nla_parse_nested(
710 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
711 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
712 nl80211_key_default_policy);
713 if (err)
714 return err;
715
716 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
717 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
718 }
719
b9454e83
JB		 720 return 0;
721}
722
723static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
724{
725 int err;
726
727 memset(k, 0, sizeof(*k));
728 k->idx = -1;
e31b8213 729 k->type = -1;
b9454e83
JB		 730
731 if (info->attrs[NL80211_ATTR_KEY])
732 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
733 else
734 err = nl80211_parse_key_old(info, k);
735
736 if (err)
737 return err;
738
739 if (k->def && k->defmgmt)
740 return -EINVAL;
741
dbd2fd65
JB		 742 if (k->defmgmt) {
743 if (k->def_uni || !k->def_multi)
744 return -EINVAL;
745 }
746
b9454e83
JB		 747 if (k->idx != -1) {
748 if (k->defmgmt) {
749 if (k->idx < 4 || k->idx > 5)
750 return -EINVAL;
751 } else if (k->def) {
752 if (k->idx < 0 || k->idx > 3)
753 return -EINVAL;
754 } else {
755 if (k->idx < 0 || k->idx > 5)
756 return -EINVAL;
757 }
758 }
759
760 return 0;
761}
762
fffd0934
JB		 763static struct cfg80211_cached_keys *
764nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 765 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 766{
767 struct key_parse parse;
768 struct nlattr *key;
769 struct cfg80211_cached_keys *result;
770 int rem, err, def = 0;
771
772 result = kzalloc(sizeof(*result), GFP_KERNEL);
773 if (!result)
774 return ERR_PTR(-ENOMEM);
775
776 result->def = -1;
777 result->defmgmt = -1;
778
779 nla_for_each_nested(key, keys, rem) {
780 memset(&parse, 0, sizeof(parse));
781 parse.idx = -1;
782
783 err = nl80211_parse_key_new(key, &parse);
784 if (err)
785 goto error;
786 err = -EINVAL;
787 if (!parse.p.key)
788 goto error;
789 if (parse.idx < 0 || parse.idx > 4)
790 goto error;
791 if (parse.def) {
792 if (def)
793 goto error;
794 def = 1;
795 result->def = parse.idx;
dbd2fd65
JB		 796 if (!parse.def_uni || !parse.def_multi)
797 goto error;
fffd0934
JB		 798 } else if (parse.defmgmt)
799 goto error;
800 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 801 parse.idx, false, NULL);
fffd0934
JB		 802 if (err)
803 goto error;
804 result->params[parse.idx].cipher = parse.p.cipher;
805 result->params[parse.idx].key_len = parse.p.key_len;
806 result->params[parse.idx].key = result->data[parse.idx];
807 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 808
809 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
810 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
811 if (no_ht)
812 *no_ht = true;
813 }
fffd0934
JB		 814 }
815
816 return result;
817 error:
818 kfree(result);
819 return ERR_PTR(err);
820}
821
822static int nl80211_key_allowed(struct wireless_dev *wdev)
823{
824 ASSERT_WDEV_LOCK(wdev);
825
fffd0934
JB		 826 switch (wdev->iftype) {
827 case NL80211_IFTYPE_AP:
828 case NL80211_IFTYPE_AP_VLAN:
074ac8df 829 case NL80211_IFTYPE_P2P_GO:
ff973af7 830 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 831 break;
832 case NL80211_IFTYPE_ADHOC:
833 if (!wdev->current_bss)
834 return -ENOLINK;
835 break;
836 case NL80211_IFTYPE_STATION:
074ac8df 837 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 838 if (wdev->sme_state != CFG80211_SME_CONNECTED)
839 return -ENOLINK;
840 break;
841 default:
842 return -EINVAL;
843 }
844
845 return 0;
846}
847
7527a782
JB		 848static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
849{
850 struct nlattr *nl_modes = nla_nest_start(msg, attr);
851 int i;
852
853 if (!nl_modes)
854 goto nla_put_failure;
855
856 i = 0;
857 while (ifmodes) {
9360ffd1
DM		 858 if ((ifmodes & 1) && nla_put_flag(msg, i))
859 goto nla_put_failure;
7527a782
JB		 860 ifmodes >>= 1;
861 i++;
862 }
863
864 nla_nest_end(msg, nl_modes);
865 return 0;
866
867nla_put_failure:
868 return -ENOBUFS;
869}
870
871static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 872 struct sk_buff *msg,
873 bool large)
7527a782
JB		 874{
875 struct nlattr *nl_combis;
876 int i, j;
877
878 nl_combis = nla_nest_start(msg,
879 NL80211_ATTR_INTERFACE_COMBINATIONS);
880 if (!nl_combis)
881 goto nla_put_failure;
882
883 for (i = 0; i < wiphy->n_iface_combinations; i++) {
884 const struct ieee80211_iface_combination *c;
885 struct nlattr *nl_combi, *nl_limits;
886
887 c = &wiphy->iface_combinations[i];
888
889 nl_combi = nla_nest_start(msg, i + 1);
890 if (!nl_combi)
891 goto nla_put_failure;
892
893 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
894 if (!nl_limits)
895 goto nla_put_failure;
896
897 for (j = 0; j < c->n_limits; j++) {
898 struct nlattr *nl_limit;
899
900 nl_limit = nla_nest_start(msg, j + 1);
901 if (!nl_limit)
902 goto nla_put_failure;
9360ffd1
DM		 903 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
904 c->limits[j].max))
905 goto nla_put_failure;
7527a782
JB		 906 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
907 c->limits[j].types))
908 goto nla_put_failure;
909 nla_nest_end(msg, nl_limit);
910 }
911
912 nla_nest_end(msg, nl_limits);
913
9360ffd1
DM		 914 if (c->beacon_int_infra_match &&
915 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
916 goto nla_put_failure;
917 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
918 c->num_different_channels) ||
919 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
920 c->max_interfaces))
921 goto nla_put_failure;
cdc89b97
JB		 922 if (large &&
923 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
924 c->radar_detect_widths))
925 goto nla_put_failure;
7527a782
JB		 926
927 nla_nest_end(msg, nl_combi);
928 }
929
930 nla_nest_end(msg, nl_combis);
931
932 return 0;
933nla_put_failure:
934 return -ENOBUFS;
935}
936
3713b4e3 937#ifdef CONFIG_PM
b56cf720
JB		 938static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
939 struct sk_buff *msg)
940{
941 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
942 struct nlattr *nl_tcp;
943
944 if (!tcp)
945 return 0;
946
947 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
948 if (!nl_tcp)
949 return -ENOBUFS;
950
951 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
952 tcp->data_payload_max))
953 return -ENOBUFS;
954
955 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
956 tcp->data_payload_max))
957 return -ENOBUFS;
958
959 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
960 return -ENOBUFS;
961
962 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
963 sizeof(*tcp->tok), tcp->tok))
964 return -ENOBUFS;
965
966 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
967 tcp->data_interval_max))
968 return -ENOBUFS;
969
970 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
971 tcp->wake_payload_max))
972 return -ENOBUFS;
973
974 nla_nest_end(msg, nl_tcp);
975 return 0;
976}
977
3713b4e3 978static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 979 struct cfg80211_registered_device *dev,
980 bool large)
55682965 981{
3713b4e3 982 struct nlattr *nl_wowlan;
55682965 983
3713b4e3
JB		 984 if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
985 return 0;
55682965 986
3713b4e3
JB		 987 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
988 if (!nl_wowlan)
989 return -ENOBUFS;
9360ffd1 990
3713b4e3
JB		 991 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
992 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
993 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
994 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
995 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
996 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
997 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
998 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
999 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1000 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1001 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1002 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1003 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1004 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1005 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1006 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1007 return -ENOBUFS;
9360ffd1 1008
3713b4e3
JB		 1009 if (dev->wiphy.wowlan.n_patterns) {
1010 struct nl80211_wowlan_pattern_support pat = {
1011 .max_patterns = dev->wiphy.wowlan.n_patterns,
1012 .min_pattern_len = dev->wiphy.wowlan.pattern_min_len,
1013 .max_pattern_len = dev->wiphy.wowlan.pattern_max_len,
1014 .max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
1015 };
9360ffd1 1016
3713b4e3
JB		 1017 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1018 sizeof(pat), &pat))
1019 return -ENOBUFS;
1020 }
9360ffd1 1021
b56cf720
JB		 1022 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1023 return -ENOBUFS;
1024
3713b4e3 1025 nla_nest_end(msg, nl_wowlan);
9360ffd1 1026
3713b4e3
JB		 1027 return 0;
1028}
1029#endif
9360ffd1 1030
3713b4e3
JB		 1031static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1032 struct ieee80211_supported_band *sband)
1033{
1034 struct nlattr *nl_rates, *nl_rate;
1035 struct ieee80211_rate *rate;
1036 int i;
87bbbe22 1037
3713b4e3
JB		 1038 /* add HT info */
1039 if (sband->ht_cap.ht_supported &&
1040 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1041 sizeof(sband->ht_cap.mcs),
1042 &sband->ht_cap.mcs) ||
1043 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1044 sband->ht_cap.cap) ||
1045 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1046 sband->ht_cap.ampdu_factor) ||
1047 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1048 sband->ht_cap.ampdu_density)))
1049 return -ENOBUFS;
afe0cbf8 1050
3713b4e3
JB		 1051 /* add VHT info */
1052 if (sband->vht_cap.vht_supported &&
1053 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1054 sizeof(sband->vht_cap.vht_mcs),
1055 &sband->vht_cap.vht_mcs) ||
1056 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1057 sband->vht_cap.cap)))
1058 return -ENOBUFS;
f59ac048 1059
3713b4e3
JB		 1060 /* add bitrates */
1061 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1062 if (!nl_rates)
1063 return -ENOBUFS;
ee688b00 1064
3713b4e3
JB		 1065 for (i = 0; i < sband->n_bitrates; i++) {
1066 nl_rate = nla_nest_start(msg, i);
1067 if (!nl_rate)
1068 return -ENOBUFS;
ee688b00 1069
3713b4e3
JB		 1070 rate = &sband->bitrates[i];
1071 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1072 rate->bitrate))
1073 return -ENOBUFS;
1074 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1075 nla_put_flag(msg,
1076 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1077 return -ENOBUFS;
ee688b00 1078
3713b4e3
JB		 1079 nla_nest_end(msg, nl_rate);
1080 }
d51626df 1081
3713b4e3 1082 nla_nest_end(msg, nl_rates);
bf0c111e 1083
3713b4e3
JB		 1084 return 0;
1085}
ee688b00 1086
3713b4e3
JB		 1087static int
1088nl80211_send_mgmt_stypes(struct sk_buff *msg,
1089 const struct ieee80211_txrx_stypes *mgmt_stypes)
1090{
1091 u16 stypes;
1092 struct nlattr *nl_ftypes, *nl_ifs;
1093 enum nl80211_iftype ift;
1094 int i;
ee688b00 1095
3713b4e3
JB		 1096 if (!mgmt_stypes)
1097 return 0;
5dab3b8a 1098
3713b4e3
JB		 1099 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1100 if (!nl_ifs)
1101 return -ENOBUFS;
e2f367f2 1102
3713b4e3
JB		 1103 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1104 nl_ftypes = nla_nest_start(msg, ift);
1105 if (!nl_ftypes)
1106 return -ENOBUFS;
1107 i = 0;
1108 stypes = mgmt_stypes[ift].tx;
1109 while (stypes) {
1110 if ((stypes & 1) &&
1111 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1112 (i << 4) | IEEE80211_FTYPE_MGMT))
1113 return -ENOBUFS;
1114 stypes >>= 1;
1115 i++;
ee688b00 1116 }
3713b4e3
JB		 1117 nla_nest_end(msg, nl_ftypes);
1118 }
ee688b00 1119
3713b4e3 1120 nla_nest_end(msg, nl_ifs);
ee688b00 1121
3713b4e3
JB		 1122 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1123 if (!nl_ifs)
1124 return -ENOBUFS;
ee688b00 1125
3713b4e3
JB		 1126 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1127 nl_ftypes = nla_nest_start(msg, ift);
1128 if (!nl_ftypes)
1129 return -ENOBUFS;
1130 i = 0;
1131 stypes = mgmt_stypes[ift].rx;
1132 while (stypes) {
1133 if ((stypes & 1) &&
1134 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1135 (i << 4) | IEEE80211_FTYPE_MGMT))
1136 return -ENOBUFS;
1137 stypes >>= 1;
1138 i++;
1139 }
1140 nla_nest_end(msg, nl_ftypes);
1141 }
1142 nla_nest_end(msg, nl_ifs);
ee688b00 1143
3713b4e3
JB		 1144 return 0;
1145}
ee688b00 1146
3713b4e3
JB		 1147static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1148 struct sk_buff *msg, u32 portid, u32 seq,
1149 int flags, bool split, long *split_start,
1150 long *band_start, long *chan_start)
1151{
1152 void *hdr;
1153 struct nlattr *nl_bands, *nl_band;
1154 struct nlattr *nl_freqs, *nl_freq;
1155 struct nlattr *nl_cmds;
1156 enum ieee80211_band band;
1157 struct ieee80211_channel *chan;
1158 int i;
1159 const struct ieee80211_txrx_stypes *mgmt_stypes =
1160 dev->wiphy.mgmt_stypes;
1161 long start = 0, start_chan = 0, start_band = 0;
fe1abafd 1162 u32 features;
ee688b00 1163
3713b4e3
JB		 1164 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1165 if (!hdr)
1166 return -ENOBUFS;
ee688b00 1167
3713b4e3
JB		 1168 /* allow always using the variables */
1169 if (!split) {
1170 split_start = &start;
1171 band_start = &start_band;
1172 chan_start = &start_chan;
ee688b00 1173 }
ee688b00 1174
3713b4e3
JB		 1175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1176 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1177 wiphy_name(&dev->wiphy)) ||
1178 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1179 cfg80211_rdev_list_generation))
8fdc621d
JB		 1180 goto nla_put_failure;
1181
3713b4e3
JB		 1182 switch (*split_start) {
1183 case 0:
1184 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1185 dev->wiphy.retry_short) ||
1186 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1187 dev->wiphy.retry_long) ||
1188 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1189 dev->wiphy.frag_threshold) ||
1190 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1191 dev->wiphy.rts_threshold) ||
1192 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1193 dev->wiphy.coverage_class) ||
1194 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1195 dev->wiphy.max_scan_ssids) ||
1196 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1197 dev->wiphy.max_sched_scan_ssids) ||
1198 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1199 dev->wiphy.max_scan_ie_len) ||
1200 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1201 dev->wiphy.max_sched_scan_ie_len) ||
1202 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1203 dev->wiphy.max_match_sets))
9360ffd1 1204 goto nla_put_failure;
3713b4e3
JB		 1205
1206 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1207 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1208 goto nla_put_failure;
3713b4e3
JB		 1209 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1210 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1211 goto nla_put_failure;
1212 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1213 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1214 goto nla_put_failure;
1215 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1216 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1217 goto nla_put_failure;
1218 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1219 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1220 goto nla_put_failure;
1221 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1222 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1223 goto nla_put_failure;
8fdc621d 1224
3713b4e3
JB		 1225 (*split_start)++;
1226 if (split)
1227 break;
1228 case 1:
1229 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1230 sizeof(u32) * dev->wiphy.n_cipher_suites,
1231 dev->wiphy.cipher_suites))
1232 goto nla_put_failure;
4745fc09 1233
3713b4e3
JB		 1234 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1235 dev->wiphy.max_num_pmkids))
1236 goto nla_put_failure;
b23aa676 1237
3713b4e3
JB		 1238 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1239 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1240 goto nla_put_failure;
b23aa676 1241
3713b4e3
JB		 1242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1243 dev->wiphy.available_antennas_tx) ||
1244 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1245 dev->wiphy.available_antennas_rx))
9360ffd1 1246 goto nla_put_failure;
b23aa676 1247
3713b4e3
JB		 1248 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1249 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1250 dev->wiphy.probe_resp_offload))
1251 goto nla_put_failure;
8fdc621d 1252
3713b4e3
JB		 1253 if ((dev->wiphy.available_antennas_tx ||
1254 dev->wiphy.available_antennas_rx) &&
1255 dev->ops->get_antenna) {
1256 u32 tx_ant = 0, rx_ant = 0;
1257 int res;
1258 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1259 if (!res) {
1260 if (nla_put_u32(msg,
1261 NL80211_ATTR_WIPHY_ANTENNA_TX,
1262 tx_ant) ||
1263 nla_put_u32(msg,
1264 NL80211_ATTR_WIPHY_ANTENNA_RX,
1265 rx_ant))
1266 goto nla_put_failure;
1267 }
1268 }
a293911d 1269
3713b4e3
JB		 1270 (*split_start)++;
1271 if (split)
1272 break;
1273 case 2:
1274 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1275 dev->wiphy.interface_modes))
1276 goto nla_put_failure;
1277 (*split_start)++;
1278 if (split)
1279 break;
1280 case 3:
1281 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1282 if (!nl_bands)
1283 goto nla_put_failure;
f7ca38df 1284
3713b4e3
JB		 1285 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1286 struct ieee80211_supported_band *sband;
2e161f78 1287
3713b4e3 1288 sband = dev->wiphy.bands[band];
2e161f78 1289
3713b4e3
JB		 1290 if (!sband)
1291 continue;
1292
1293 nl_band = nla_nest_start(msg, band);
1294 if (!nl_band)
2e161f78 1295 goto nla_put_failure;
3713b4e3
JB		 1296
1297 switch (*chan_start) {
1298 case 0:
1299 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1300 goto nla_put_failure;
3713b4e3
JB		 1301 (*chan_start)++;
1302 if (split)
1303 break;
1304 default:
1305 /* add frequencies */
1306 nl_freqs = nla_nest_start(
1307 msg, NL80211_BAND_ATTR_FREQS);
1308 if (!nl_freqs)
1309 goto nla_put_failure;
1310
1311 for (i = *chan_start - 1;
1312 i < sband->n_channels;
1313 i++) {
1314 nl_freq = nla_nest_start(msg, i);
1315 if (!nl_freq)
1316 goto nla_put_failure;
1317
1318 chan = &sband->channels[i];
1319
cdc89b97
JB		 1320 if (nl80211_msg_put_channel(msg, chan,
1321 split))
3713b4e3
JB		 1322 goto nla_put_failure;
1323
1324 nla_nest_end(msg, nl_freq);
1325 if (split)
1326 break;
1327 }
1328 if (i < sband->n_channels)
1329 *chan_start = i + 2;
1330 else
1331 *chan_start = 0;
1332 nla_nest_end(msg, nl_freqs);
1333 }
1334
1335 nla_nest_end(msg, nl_band);
1336
1337 if (split) {
1338 /* start again here */
1339 if (*chan_start)
1340 band--;
1341 break;
2e161f78 1342 }
2e161f78 1343 }
3713b4e3 1344 nla_nest_end(msg, nl_bands);
2e161f78 1345
3713b4e3
JB		 1346 if (band < IEEE80211_NUM_BANDS)
1347 *band_start = band + 1;
1348 else
1349 *band_start = 0;
74b70a4e 1350
3713b4e3
JB		 1351 /* if bands & channels are done, continue outside */
1352 if (*band_start == 0 && *chan_start == 0)
1353 (*split_start)++;
1354 if (split)
1355 break;
1356 case 4:
1357 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1358 if (!nl_cmds)
2e161f78
JB		 1359 goto nla_put_failure;
1360
3713b4e3
JB		 1361 i = 0;
1362#define CMD(op, n) \
1363 do { \
1364 if (dev->ops->op) { \
1365 i++; \
1366 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1367 goto nla_put_failure; \
1368 } \
1369 } while (0)
1370
1371 CMD(add_virtual_intf, NEW_INTERFACE);
1372 CMD(change_virtual_intf, SET_INTERFACE);
1373 CMD(add_key, NEW_KEY);
1374 CMD(start_ap, START_AP);
1375 CMD(add_station, NEW_STATION);
1376 CMD(add_mpath, NEW_MPATH);
1377 CMD(update_mesh_config, SET_MESH_CONFIG);
1378 CMD(change_bss, SET_BSS);
1379 CMD(auth, AUTHENTICATE);
1380 CMD(assoc, ASSOCIATE);
1381 CMD(deauth, DEAUTHENTICATE);
1382 CMD(disassoc, DISASSOCIATE);
1383 CMD(join_ibss, JOIN_IBSS);
1384 CMD(join_mesh, JOIN_MESH);
1385 CMD(set_pmksa, SET_PMKSA);
1386 CMD(del_pmksa, DEL_PMKSA);
1387 CMD(flush_pmksa, FLUSH_PMKSA);
1388 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1389 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1390 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1391 CMD(mgmt_tx, FRAME);
1392 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1393 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1394 i++;
1395 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1396 goto nla_put_failure;
2e161f78 1397 }
3713b4e3
JB		 1398 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1399 dev->ops->join_mesh) {
1400 i++;
1401 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1402 goto nla_put_failure;
1403 }
1404 CMD(set_wds_peer, SET_WDS_PEER);
1405 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1406 CMD(tdls_mgmt, TDLS_MGMT);
1407 CMD(tdls_oper, TDLS_OPER);
1408 }
1409 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1410 CMD(sched_scan_start, START_SCHED_SCAN);
1411 CMD(probe_client, PROBE_CLIENT);
1412 CMD(set_noack_map, SET_NOACK_MAP);
1413 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1414 i++;
1415 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1416 goto nla_put_failure;
1417 }
1418 CMD(start_p2p_device, START_P2P_DEVICE);
1419 CMD(set_mcast_rate, SET_MCAST_RATE);
2e161f78 1420
3713b4e3
JB		 1421#ifdef CONFIG_NL80211_TESTMODE
1422 CMD(testmode_cmd, TESTMODE);
1423#endif
ff1b6e69 1424
3713b4e3 1425#undef CMD
ff1b6e69 1426
3713b4e3
JB		 1427 if (dev->ops->connect || dev->ops->auth) {
1428 i++;
1429 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1430 goto nla_put_failure;
ff1b6e69
JB		 1431 }
1432
3713b4e3
JB		 1433 if (dev->ops->disconnect || dev->ops->deauth) {
1434 i++;
1435 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1436 goto nla_put_failure;
1437 }
1438
1439 nla_nest_end(msg, nl_cmds);
1440 (*split_start)++;
1441 if (split)
1442 break;
1443 case 5:
1444 if (dev->ops->remain_on_channel &&
1445 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1446 nla_put_u32(msg,
1447 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1448 dev->wiphy.max_remain_on_channel_duration))
1449 goto nla_put_failure;
1450
1451 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1452 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1453 goto nla_put_failure;
1454
1455 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1456 goto nla_put_failure;
1457 (*split_start)++;
1458 if (split)
1459 break;
1460 case 6:
1461#ifdef CONFIG_PM
b56cf720 1462 if (nl80211_send_wowlan(msg, dev, split))
3713b4e3
JB		 1463 goto nla_put_failure;
1464 (*split_start)++;
1465 if (split)
1466 break;
1467#else
1468 (*split_start)++;
dfb89c56 1469#endif
3713b4e3
JB		 1470 case 7:
1471 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1472 dev->wiphy.software_iftypes))
1473 goto nla_put_failure;
ff1b6e69 1474
cdc89b97 1475 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
3713b4e3 1476 goto nla_put_failure;
7527a782 1477
3713b4e3
JB		 1478 (*split_start)++;
1479 if (split)
1480 break;
1481 case 8:
1482 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1483 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1484 dev->wiphy.ap_sme_capa))
1485 goto nla_put_failure;
7527a782 1486
fe1abafd
JB		 1487 features = dev->wiphy.features;
1488 /*
1489 * We can only add the per-channel limit information if the
1490 * dump is split, otherwise it makes it too big. Therefore
1491 * only advertise it in that case.
1492 */
1493 if (split)
1494 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1495 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1496 goto nla_put_failure;
562a7480 1497
3713b4e3
JB		 1498 if (dev->wiphy.ht_capa_mod_mask &&
1499 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1500 sizeof(*dev->wiphy.ht_capa_mod_mask),
1501 dev->wiphy.ht_capa_mod_mask))
1502 goto nla_put_failure;
1f074bd8 1503
3713b4e3
JB		 1504 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1505 dev->wiphy.max_acl_mac_addrs &&
1506 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1507 dev->wiphy.max_acl_mac_addrs))
1508 goto nla_put_failure;
7e7c8926 1509
3713b4e3
JB		 1510 /*
1511 * Any information below this point is only available to
1512 * applications that can deal with it being split. This
1513 * helps ensure that newly added capabilities don't break
1514 * older tools by overrunning their buffers.
1515 *
1516 * We still increment split_start so that in the split
1517 * case we'll continue with more data in the next round,
1518 * but break unconditionally so unsplit data stops here.
1519 */
1520 (*split_start)++;
1521 break;
1522 case 9:
fe1abafd
JB		 1523 if (dev->wiphy.extended_capabilities &&
1524 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1525 dev->wiphy.extended_capabilities_len,
1526 dev->wiphy.extended_capabilities) ||
1527 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1528 dev->wiphy.extended_capabilities_len,
1529 dev->wiphy.extended_capabilities_mask)))
1530 goto nla_put_failure;
a50df0c4 1531
ee2aca34
JB		 1532 if (dev->wiphy.vht_capa_mod_mask &&
1533 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1534 sizeof(*dev->wiphy.vht_capa_mod_mask),
1535 dev->wiphy.vht_capa_mod_mask))
1536 goto nla_put_failure;
1537
3713b4e3
JB		 1538 /* done */
1539 *split_start = 0;
1540 break;
1541 }
55682965
JB		 1542 return genlmsg_end(msg, hdr);
1543
1544 nla_put_failure:
bc3ed28c
TG		 1545 genlmsg_cancel(msg, hdr);
1546 return -EMSGSIZE;
55682965
JB		 1547}
1548
1549static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1550{
645e77de 1551 int idx = 0, ret;
55682965
JB		 1552 int start = cb->args[0];
1553 struct cfg80211_registered_device *dev;
3713b4e3
JB		 1554 s64 filter_wiphy = -1;
1555 bool split = false;
1556 struct nlattr **tb = nl80211_fam.attrbuf;
1557 int res;
55682965 1558
a1794390 1559 mutex_lock(&cfg80211_mutex);
3713b4e3
JB		 1560 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1561 tb, nl80211_fam.maxattr, nl80211_policy);
1562 if (res == 0) {
1563 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1564 if (tb[NL80211_ATTR_WIPHY])
1565 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1566 if (tb[NL80211_ATTR_WDEV])
1567 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1568 if (tb[NL80211_ATTR_IFINDEX]) {
1569 struct net_device *netdev;
1570 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1571
1572 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1573 if (!netdev) {
1574 mutex_unlock(&cfg80211_mutex);
1575 return -ENODEV;
1576 }
1577 if (netdev->ieee80211_ptr) {
1578 dev = wiphy_to_dev(
1579 netdev->ieee80211_ptr->wiphy);
1580 filter_wiphy = dev->wiphy_idx;
1581 }
1582 dev_put(netdev);
1583 }
1584 }
1585
79c97e97 1586 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1587 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1588 continue;
b4637271 1589 if (++idx <= start)
55682965 1590 continue;
3713b4e3
JB		 1591 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1592 continue;
1593 /* attempt to fit multiple wiphy data chunks into the skb */
1594 do {
1595 ret = nl80211_send_wiphy(dev, skb,
1596 NETLINK_CB(cb->skb).portid,
1597 cb->nlh->nlmsg_seq,
1598 NLM_F_MULTI,
1599 split, &cb->args[1],
1600 &cb->args[2],
1601 &cb->args[3]);
1602 if (ret < 0) {
1603 /*
1604 * If sending the wiphy data didn't fit (ENOBUFS
1605 * or EMSGSIZE returned), this SKB is still
1606 * empty (so it's not too big because another
1607 * wiphy dataset is already in the skb) and
1608 * we've not tried to adjust the dump allocation
1609 * yet ... then adjust the alloc size to be
1610 * bigger, and return 1 but with the empty skb.
1611 * This results in an empty message being RX'ed
1612 * in userspace, but that is ignored.
1613 *
1614 * We can then retry with the larger buffer.
1615 */
1616 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1617 !skb->len &&
1618 cb->min_dump_alloc < 4096) {
1619 cb->min_dump_alloc = 4096;
1620 mutex_unlock(&cfg80211_mutex);
1621 return 1;
1622 }
1623 idx--;
1624 break;
645e77de 1625 }
3713b4e3
JB		 1626 } while (cb->args[1] > 0);
1627 break;
55682965 1628 }
a1794390 1629 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1630
1631 cb->args[0] = idx;
1632
1633 return skb->len;
1634}
1635
1636static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1637{
1638 struct sk_buff *msg;
4c476991 1639 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1640
645e77de 1641 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1642 if (!msg)
4c476991 1643 return -ENOMEM;
55682965 1644
3713b4e3
JB		 1645 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1646 false, NULL, NULL, NULL) < 0) {
4c476991
JB		 1647 nlmsg_free(msg);
1648 return -ENOBUFS;
1649 }
55682965 1650
134e6375 1651 return genlmsg_reply(msg, info);
55682965
JB		 1652}
1653
31888487
JM		 1654static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1655 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1656 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1657 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1658 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1659 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1660};
1661
1662static int parse_txq_params(struct nlattr *tb[],
1663 struct ieee80211_txq_params *txq_params)
1664{
a3304b0a 1665 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1666 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1667 !tb[NL80211_TXQ_ATTR_AIFS])
1668 return -EINVAL;
1669
a3304b0a 1670 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1671 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1672 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1673 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1674 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1675
a3304b0a
JB		 1676 if (txq_params->ac >= NL80211_NUM_ACS)
1677 return -EINVAL;
1678
31888487
JM		 1679 return 0;
1680}
1681
f444de05
JB		 1682static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1683{
1684 /*
cc1d2806
JB		 1685 * You can only set the channel explicitly for WDS interfaces,
1686 * all others have their channel managed via their respective
1687 * "establish a connection" command (connect, join, ...)
1688 *
1689 * For AP/GO and mesh mode, the channel can be set with the
1690 * channel userspace API, but is only stored and passed to the
1691 * low-level driver when the AP starts or the mesh is joined.
1692 * This is for backward compatibility, userspace can also give
1693 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1694 *
1695 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1696 * whatever else is going on, so they have their own special
1697 * operation to set the monitor channel if possible.
f444de05
JB		 1698 */
1699 return !wdev ||
1700 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1701 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1702 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1703 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1704}
1705
683b6d3b
JB		 1706static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1707 struct genl_info *info,
1708 struct cfg80211_chan_def *chandef)
1709{
dbeca2ea 1710 u32 control_freq;
683b6d3b
JB		 1711
1712 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1713 return -EINVAL;
1714
1715 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1716
1717 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1718 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1719 chandef->center_freq1 = control_freq;
1720 chandef->center_freq2 = 0;
683b6d3b
JB		 1721
1722 /* Primary channel not allowed */
1723 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1724 return -EINVAL;
1725
3d9d1d66
JB		 1726 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1727 enum nl80211_channel_type chantype;
1728
1729 chantype = nla_get_u32(
1730 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1731
1732 switch (chantype) {
1733 case NL80211_CHAN_NO_HT:
1734 case NL80211_CHAN_HT20:
1735 case NL80211_CHAN_HT40PLUS:
1736 case NL80211_CHAN_HT40MINUS:
1737 cfg80211_chandef_create(chandef, chandef->chan,
1738 chantype);
1739 break;
1740 default:
1741 return -EINVAL;
1742 }
1743 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1744 chandef->width =
1745 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1746 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1747 chandef->center_freq1 =
1748 nla_get_u32(
1749 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1750 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1751 chandef->center_freq2 =
1752 nla_get_u32(
1753 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1754 }
1755
9f5e8f6e 1756 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1757 return -EINVAL;
1758
9f5e8f6e
JB		 1759 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1760 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1761 return -EINVAL;
1762
683b6d3b
JB		 1763 return 0;
1764}
1765
f444de05
JB		 1766static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1767 struct wireless_dev *wdev,
1768 struct genl_info *info)
1769{
683b6d3b 1770 struct cfg80211_chan_def chandef;
f444de05 1771 int result;
e8c9bd5b
JB		 1772 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1773
1774 if (wdev)
1775 iftype = wdev->iftype;
f444de05 1776
f444de05
JB		 1777 if (!nl80211_can_set_dev_channel(wdev))
1778 return -EOPNOTSUPP;
1779
683b6d3b
JB		 1780 result = nl80211_parse_chandef(rdev, info, &chandef);
1781 if (result)
1782 return result;
f444de05
JB		 1783
1784 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1785 switch (iftype) {
aa430da4
JB		 1786 case NL80211_IFTYPE_AP:
1787 case NL80211_IFTYPE_P2P_GO:
1788 if (wdev->beacon_interval) {
1789 result = -EBUSY;
1790 break;
1791 }
683b6d3b 1792 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1793 result = -EINVAL;
1794 break;
1795 }
683b6d3b 1796 wdev->preset_chandef = chandef;
aa430da4
JB		 1797 result = 0;
1798 break;
cc1d2806 1799 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1800 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1801 break;
e8c9bd5b 1802 case NL80211_IFTYPE_MONITOR:
683b6d3b 1803 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1804 break;
aa430da4 1805 default:
e8c9bd5b 1806 result = -EINVAL;
f444de05
JB		 1807 }
1808 mutex_unlock(&rdev->devlist_mtx);
1809
1810 return result;
1811}
1812
1813static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1814{
4c476991
JB		 1815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1816 struct net_device *netdev = info->user_ptr[1];
f444de05 1817
4c476991 1818 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1819}
1820
e8347eba
BJ		 1821static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1822{
43b19952
JB		 1823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1824 struct net_device *dev = info->user_ptr[1];
1825 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1826 const u8 *bssid;
e8347eba
BJ		 1827
1828 if (!info->attrs[NL80211_ATTR_MAC])
1829 return -EINVAL;
1830
43b19952
JB		 1831 if (netif_running(dev))
1832 return -EBUSY;
e8347eba 1833
43b19952
JB		 1834 if (!rdev->ops->set_wds_peer)
1835 return -EOPNOTSUPP;
e8347eba 1836
43b19952
JB		 1837 if (wdev->iftype != NL80211_IFTYPE_WDS)
1838 return -EOPNOTSUPP;
e8347eba
BJ		 1839
1840 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1841 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1842}
1843
1844
55682965
JB		 1845static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1846{
1847 struct cfg80211_registered_device *rdev;
f444de05
JB		 1848 struct net_device *netdev = NULL;
1849 struct wireless_dev *wdev;
a1e567c8 1850 int result = 0, rem_txq_params = 0;
31888487 1851 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1852 u32 changed;
1853 u8 retry_short = 0, retry_long = 0;
1854 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1855 u8 coverage_class = 0;
55682965 1856
f444de05
JB		 1857 /*
1858 * Try to find the wiphy and netdev. Normally this
1859 * function shouldn't need the netdev, but this is
1860 * done for backward compatibility -- previously
1861 * setting the channel was done per wiphy, but now
1862 * it is per netdev. Previous userland like hostapd
1863 * also passed a netdev to set_wiphy, so that it is
1864 * possible to let that go to the right netdev!
1865 */
4bbf4d56
JB		 1866 mutex_lock(&cfg80211_mutex);
1867
f444de05
JB		 1868 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1869 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1870
1871 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1872 if (netdev && netdev->ieee80211_ptr) {
1873 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1874 mutex_lock(&rdev->mtx);
1875 } else
1876 netdev = NULL;
4bbf4d56
JB		 1877 }
1878
f444de05 1879 if (!netdev) {
878d9ec7
JB		 1880 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1881 info->attrs);
f444de05
JB		 1882 if (IS_ERR(rdev)) {
1883 mutex_unlock(&cfg80211_mutex);
4c476991 1884 return PTR_ERR(rdev);
f444de05
JB		 1885 }
1886 wdev = NULL;
1887 netdev = NULL;
1888 result = 0;
1889
1890 mutex_lock(&rdev->mtx);
71fe96bf 1891 } else
f444de05 1892 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1893
1894 /*
1895 * end workaround code, by now the rdev is available
1896 * and locked, and wdev may or may not be NULL.
1897 */
4bbf4d56
JB		 1898
1899 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1900 result = cfg80211_dev_rename(
1901 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1902
1903 mutex_unlock(&cfg80211_mutex);
1904
1905 if (result)
1906 goto bad_res;
31888487
JM		 1907
1908 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1909 struct ieee80211_txq_params txq_params;
1910 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1911
1912 if (!rdev->ops->set_txq_params) {
1913 result = -EOPNOTSUPP;
1914 goto bad_res;
1915 }
1916
f70f01c2
EP		 1917 if (!netdev) {
1918 result = -EINVAL;
1919 goto bad_res;
1920 }
1921
133a3ff2
JB		 1922 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1923 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1924 result = -EINVAL;
1925 goto bad_res;
1926 }
1927
2b5f8b0b
JB		 1928 if (!netif_running(netdev)) {
1929 result = -ENETDOWN;
1930 goto bad_res;
1931 }
1932
31888487
JM		 1933 nla_for_each_nested(nl_txq_params,
1934 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1935 rem_txq_params) {
1936 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1937 nla_data(nl_txq_params),
1938 nla_len(nl_txq_params),
1939 txq_params_policy);
1940 result = parse_txq_params(tb, &txq_params);
1941 if (result)
1942 goto bad_res;
1943
e35e4d28
HG		 1944 result = rdev_set_txq_params(rdev, netdev,
1945 &txq_params);
31888487
JM		 1946 if (result)
1947 goto bad_res;
1948 }
1949 }
55682965 1950
72bdcf34 1951 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1952 result = __nl80211_set_channel(rdev,
1953 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1954 info);
72bdcf34
JM		 1955 if (result)
1956 goto bad_res;
1957 }
1958
98d2ff8b 1959 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1960 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1961 enum nl80211_tx_power_setting type;
1962 int idx, mbm = 0;
1963
c8442118
JB		 1964 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1965 txp_wdev = NULL;
1966
98d2ff8b 1967 if (!rdev->ops->set_tx_power) {
60ea385f 1968 result = -EOPNOTSUPP;
98d2ff8b
JO		 1969 goto bad_res;
1970 }
1971
1972 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1973 type = nla_get_u32(info->attrs[idx]);
1974
1975 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1976 (type != NL80211_TX_POWER_AUTOMATIC)) {
1977 result = -EINVAL;
1978 goto bad_res;
1979 }
1980
1981 if (type != NL80211_TX_POWER_AUTOMATIC) {
1982 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1983 mbm = nla_get_u32(info->attrs[idx]);
1984 }
1985
c8442118 1986 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1987 if (result)
1988 goto bad_res;
1989 }
1990
afe0cbf8
BR		 1991 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1992 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1993 u32 tx_ant, rx_ant;
7f531e03
BR		 1994 if ((!rdev->wiphy.available_antennas_tx &&
1995 !rdev->wiphy.available_antennas_rx) ||
1996 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1997 result = -EOPNOTSUPP;
1998 goto bad_res;
1999 }
2000
2001 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2002 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2003
a7ffac95 2004 /* reject antenna configurations which don't match the
7f531e03
BR		 2005 * available antenna masks, except for the "all" mask */
2006 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2007 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2008 result = -EINVAL;
2009 goto bad_res;
2010 }
2011
7f531e03
BR		 2012 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2013 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2014
e35e4d28 2015 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2016 if (result)
2017 goto bad_res;
2018 }
2019
b9a5f8ca
JM		 2020 changed = 0;
2021
2022 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2023 retry_short = nla_get_u8(
2024 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2025 if (retry_short == 0) {
2026 result = -EINVAL;
2027 goto bad_res;
2028 }
2029 changed |= WIPHY_PARAM_RETRY_SHORT;
2030 }
2031
2032 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2033 retry_long = nla_get_u8(
2034 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2035 if (retry_long == 0) {
2036 result = -EINVAL;
2037 goto bad_res;
2038 }
2039 changed |= WIPHY_PARAM_RETRY_LONG;
2040 }
2041
2042 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2043 frag_threshold = nla_get_u32(
2044 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2045 if (frag_threshold < 256) {
2046 result = -EINVAL;
2047 goto bad_res;
2048 }
2049 if (frag_threshold != (u32) -1) {
2050 /*
2051 * Fragments (apart from the last one) are required to
2052 * have even length. Make the fragmentation code
2053 * simpler by stripping LSB should someone try to use
2054 * odd threshold value.
2055 */
2056 frag_threshold &= ~0x1;
2057 }
2058 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2059 }
2060
2061 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2062 rts_threshold = nla_get_u32(
2063 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2064 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2065 }
2066
81077e82
LT		 2067 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2068 coverage_class = nla_get_u8(
2069 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2070 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2071 }
2072
b9a5f8ca
JM		 2073 if (changed) {
2074 u8 old_retry_short, old_retry_long;
2075 u32 old_frag_threshold, old_rts_threshold;
81077e82 2076 u8 old_coverage_class;
b9a5f8ca
JM		 2077
2078 if (!rdev->ops->set_wiphy_params) {
2079 result = -EOPNOTSUPP;
2080 goto bad_res;
2081 }
2082
2083 old_retry_short = rdev->wiphy.retry_short;
2084 old_retry_long = rdev->wiphy.retry_long;
2085 old_frag_threshold = rdev->wiphy.frag_threshold;
2086 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2087 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2088
2089 if (changed & WIPHY_PARAM_RETRY_SHORT)
2090 rdev->wiphy.retry_short = retry_short;
2091 if (changed & WIPHY_PARAM_RETRY_LONG)
2092 rdev->wiphy.retry_long = retry_long;
2093 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2094 rdev->wiphy.frag_threshold = frag_threshold;
2095 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2096 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2097 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2098 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2099
e35e4d28 2100 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2101 if (result) {
2102 rdev->wiphy.retry_short = old_retry_short;
2103 rdev->wiphy.retry_long = old_retry_long;
2104 rdev->wiphy.frag_threshold = old_frag_threshold;
2105 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2106 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2107 }
2108 }
72bdcf34 2109
306d6112 2110 bad_res:
4bbf4d56 2111 mutex_unlock(&rdev->mtx);
f444de05
JB		 2112 if (netdev)
2113 dev_put(netdev);
55682965
JB		 2114 return result;
2115}
2116
71bbc994
JB		 2117static inline u64 wdev_id(struct wireless_dev *wdev)
2118{
2119 return (u64)wdev->identifier |
2120 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2121}
55682965 2122
683b6d3b
JB		 2123static int nl80211_send_chandef(struct sk_buff *msg,
2124 struct cfg80211_chan_def *chandef)
2125{
9f5e8f6e 2126 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2127
683b6d3b
JB		 2128 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2129 chandef->chan->center_freq))
2130 return -ENOBUFS;
3d9d1d66
JB		 2131 switch (chandef->width) {
2132 case NL80211_CHAN_WIDTH_20_NOHT:
2133 case NL80211_CHAN_WIDTH_20:
2134 case NL80211_CHAN_WIDTH_40:
2135 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2136 cfg80211_get_chandef_type(chandef)))
2137 return -ENOBUFS;
2138 break;
2139 default:
2140 break;
2141 }
2142 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2143 return -ENOBUFS;
2144 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2145 return -ENOBUFS;
2146 if (chandef->center_freq2 &&
2147 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2148 return -ENOBUFS;
2149 return 0;
2150}
2151
15e47304 2152static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2153 struct cfg80211_registered_device *rdev,
72fb2abc 2154 struct wireless_dev *wdev)
55682965 2155{
72fb2abc 2156 struct net_device *dev = wdev->netdev;
55682965
JB		 2157 void *hdr;
2158
15e47304 2159 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2160 if (!hdr)
2161 return -1;
2162
72fb2abc
JB		 2163 if (dev &&
2164 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2165 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2166 goto nla_put_failure;
2167
2168 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2169 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2170 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2171 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2172 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2173 rdev->devlist_generation ^
2174 (cfg80211_rdev_list_generation << 2)))
2175 goto nla_put_failure;
f5ea9120 2176
5b7ccaf3 2177 if (rdev->ops->get_channel) {
683b6d3b
JB		 2178 int ret;
2179 struct cfg80211_chan_def chandef;
2180
2181 ret = rdev_get_channel(rdev, wdev, &chandef);
2182 if (ret == 0) {
2183 if (nl80211_send_chandef(msg, &chandef))
2184 goto nla_put_failure;
2185 }
d91df0e3
PF		 2186 }
2187
b84e7a05
AQ		 2188 if (wdev->ssid_len) {
2189 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2190 goto nla_put_failure;
2191 }
2192
55682965
JB		 2193 return genlmsg_end(msg, hdr);
2194
2195 nla_put_failure:
bc3ed28c
TG		 2196 genlmsg_cancel(msg, hdr);
2197 return -EMSGSIZE;
55682965
JB		 2198}
2199
2200static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2201{
2202 int wp_idx = 0;
2203 int if_idx = 0;
2204 int wp_start = cb->args[0];
2205 int if_start = cb->args[1];
f5ea9120 2206 struct cfg80211_registered_device *rdev;
55682965
JB		 2207 struct wireless_dev *wdev;
2208
a1794390 2209 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 2210 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2211 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2212 continue;
bba95fef
JB		 2213 if (wp_idx < wp_start) {
2214 wp_idx++;
55682965 2215 continue;
bba95fef 2216 }
55682965
JB		 2217 if_idx = 0;
2218
f5ea9120 2219 mutex_lock(&rdev->devlist_mtx);
89a54e48 2220 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2221 if (if_idx < if_start) {
2222 if_idx++;
55682965 2223 continue;
bba95fef 2224 }
15e47304 2225 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2226 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2227 rdev, wdev) < 0) {
f5ea9120 2228 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 2229 goto out;
2230 }
2231 if_idx++;
55682965 2232 }
f5ea9120 2233 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 2234
2235 wp_idx++;
55682965 2236 }
bba95fef 2237 out:
a1794390 2238 mutex_unlock(&cfg80211_mutex);
55682965
JB		 2239
2240 cb->args[0] = wp_idx;
2241 cb->args[1] = if_idx;
2242
2243 return skb->len;
2244}
2245
2246static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2247{
2248 struct sk_buff *msg;
4c476991 2249 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2250 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2251
fd2120ca 2252 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2253 if (!msg)
4c476991 2254 return -ENOMEM;
55682965 2255
15e47304 2256 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2257 dev, wdev) < 0) {
4c476991
JB		 2258 nlmsg_free(msg);
2259 return -ENOBUFS;
2260 }
55682965 2261
134e6375 2262 return genlmsg_reply(msg, info);
55682965
JB		 2263}
2264
66f7ac50
MW		 2265static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2266 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2267 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2268 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2269 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2270 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2271};
2272
2273static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2274{
2275 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2276 int flag;
2277
2278 *mntrflags = 0;
2279
2280 if (!nla)
2281 return -EINVAL;
2282
2283 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2284 nla, mntr_flags_policy))
2285 return -EINVAL;
2286
2287 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2288 if (flags[flag])
2289 *mntrflags |= (1<<flag);
2290
2291 return 0;
2292}
2293
9bc383de 2294static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2295 struct net_device *netdev, u8 use_4addr,
2296 enum nl80211_iftype iftype)
9bc383de 2297{
ad4bb6f8 2298 if (!use_4addr) {
f350a0a8 2299 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2300 return -EBUSY;
9bc383de 2301 return 0;
ad4bb6f8 2302 }
9bc383de
JB		 2303
2304 switch (iftype) {
2305 case NL80211_IFTYPE_AP_VLAN:
2306 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2307 return 0;
2308 break;
2309 case NL80211_IFTYPE_STATION:
2310 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2311 return 0;
2312 break;
2313 default:
2314 break;
2315 }
2316
2317 return -EOPNOTSUPP;
2318}
2319
55682965
JB		 2320static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2321{
4c476991 2322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2323 struct vif_params params;
e36d56b6 2324 int err;
04a773ad 2325 enum nl80211_iftype otype, ntype;
4c476991 2326 struct net_device *dev = info->user_ptr[1];
92ffe055 2327 u32 _flags, *flags = NULL;
ac7f9cfa 2328 bool change = false;
55682965 2329
2ec600d6
LCC		 2330 memset(&params, 0, sizeof(params));
2331
04a773ad 2332 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2333
723b038d 2334 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2335 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2336 if (otype != ntype)
ac7f9cfa 2337 change = true;
4c476991
JB		 2338 if (ntype > NL80211_IFTYPE_MAX)
2339 return -EINVAL;
723b038d
JB		 2340 }
2341
92ffe055 2342 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2343 struct wireless_dev *wdev = dev->ieee80211_ptr;
2344
4c476991
JB		 2345 if (ntype != NL80211_IFTYPE_MESH_POINT)
2346 return -EINVAL;
29cbe68c
JB		 2347 if (netif_running(dev))
2348 return -EBUSY;
2349
2350 wdev_lock(wdev);
2351 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2352 IEEE80211_MAX_MESH_ID_LEN);
2353 wdev->mesh_id_up_len =
2354 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2355 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2356 wdev->mesh_id_up_len);
2357 wdev_unlock(wdev);
2ec600d6
LCC		 2358 }
2359
8b787643
FF		 2360 if (info->attrs[NL80211_ATTR_4ADDR]) {
2361 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2362 change = true;
ad4bb6f8 2363 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2364 if (err)
4c476991 2365 return err;
8b787643
FF		 2366 } else {
2367 params.use_4addr = -1;
2368 }
2369
92ffe055 2370 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2371 if (ntype != NL80211_IFTYPE_MONITOR)
2372 return -EINVAL;
92ffe055
JB		 2373 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2374 &_flags);
ac7f9cfa 2375 if (err)
4c476991 2376 return err;
ac7f9cfa
JB		 2377
2378 flags = &_flags;
2379 change = true;
92ffe055 2380 }
3b85875a 2381
ac7f9cfa 2382 if (change)
3d54d255 2383 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2384 else
2385 err = 0;
60719ffd 2386
9bc383de
JB		 2387 if (!err && params.use_4addr != -1)
2388 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2389
55682965
JB		 2390 return err;
2391}
2392
2393static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2394{
4c476991 2395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2396 struct vif_params params;
84efbb84 2397 struct wireless_dev *wdev;
1c90f9d4 2398 struct sk_buff *msg;
55682965
JB		 2399 int err;
2400 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2401 u32 flags;
55682965 2402
2ec600d6
LCC		 2403 memset(&params, 0, sizeof(params));
2404
55682965
JB		 2405 if (!info->attrs[NL80211_ATTR_IFNAME])
2406 return -EINVAL;
2407
2408 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2409 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2410 if (type > NL80211_IFTYPE_MAX)
2411 return -EINVAL;
2412 }
2413
79c97e97 2414 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2415 !(rdev->wiphy.interface_modes & (1 << type)))
2416 return -EOPNOTSUPP;
55682965 2417
1c18f145
AS		 2418 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2419 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2420 ETH_ALEN);
2421 if (!is_valid_ether_addr(params.macaddr))
2422 return -EADDRNOTAVAIL;
2423 }
2424
9bc383de 2425 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2426 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2427 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2428 if (err)
4c476991 2429 return err;
9bc383de 2430 }
8b787643 2431
1c90f9d4
JB		 2432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2433 if (!msg)
2434 return -ENOMEM;
2435
66f7ac50
MW		 2436 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2437 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2438 &flags);
e35e4d28
HG		 2439 wdev = rdev_add_virtual_intf(rdev,
2440 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2441 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2442 if (IS_ERR(wdev)) {
2443 nlmsg_free(msg);
84efbb84 2444 return PTR_ERR(wdev);
1c90f9d4 2445 }
2ec600d6 2446
98104fde
JB		 2447 switch (type) {
2448 case NL80211_IFTYPE_MESH_POINT:
2449 if (!info->attrs[NL80211_ATTR_MESH_ID])
2450 break;
29cbe68c
JB		 2451 wdev_lock(wdev);
2452 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2453 IEEE80211_MAX_MESH_ID_LEN);
2454 wdev->mesh_id_up_len =
2455 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2456 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2457 wdev->mesh_id_up_len);
2458 wdev_unlock(wdev);
98104fde
JB		 2459 break;
2460 case NL80211_IFTYPE_P2P_DEVICE:
2461 /*
2462 * P2P Device doesn't have a netdev, so doesn't go
2463 * through the netdev notifier and must be added here
2464 */
2465 mutex_init(&wdev->mtx);
2466 INIT_LIST_HEAD(&wdev->event_list);
2467 spin_lock_init(&wdev->event_lock);
2468 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2469 spin_lock_init(&wdev->mgmt_registrations_lock);
2470
2471 mutex_lock(&rdev->devlist_mtx);
2472 wdev->identifier = ++rdev->wdev_id;
2473 list_add_rcu(&wdev->list, &rdev->wdev_list);
2474 rdev->devlist_generation++;
2475 mutex_unlock(&rdev->devlist_mtx);
2476 break;
2477 default:
2478 break;
29cbe68c
JB		 2479 }
2480
15e47304 2481 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2482 rdev, wdev) < 0) {
2483 nlmsg_free(msg);
2484 return -ENOBUFS;
2485 }
2486
2487 return genlmsg_reply(msg, info);
55682965
JB		 2488}
2489
2490static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2491{
4c476991 2492 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2493 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2494
4c476991
JB		 2495 if (!rdev->ops->del_virtual_intf)
2496 return -EOPNOTSUPP;
55682965 2497
84efbb84
JB		 2498 /*
2499 * If we remove a wireless device without a netdev then clear
2500 * user_ptr[1] so that nl80211_post_doit won't dereference it
2501 * to check if it needs to do dev_put(). Otherwise it crashes
2502 * since the wdev has been freed, unlike with a netdev where
2503 * we need the dev_put() for the netdev to really be freed.
2504 */
2505 if (!wdev->netdev)
2506 info->user_ptr[1] = NULL;
2507
e35e4d28 2508 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2509}
2510
1d9d9213
SW		 2511static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2512{
2513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2514 struct net_device *dev = info->user_ptr[1];
2515 u16 noack_map;
2516
2517 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2518 return -EINVAL;
2519
2520 if (!rdev->ops->set_noack_map)
2521 return -EOPNOTSUPP;
2522
2523 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2524
e35e4d28 2525 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2526}
2527
41ade00f
JB		 2528struct get_key_cookie {
2529 struct sk_buff *msg;
2530 int error;
b9454e83 2531 int idx;
41ade00f
JB		 2532};
2533
2534static void get_key_callback(void *c, struct key_params *params)
2535{
b9454e83 2536 struct nlattr *key;
41ade00f
JB		 2537 struct get_key_cookie *cookie = c;
2538
9360ffd1
DM		 2539 if ((params->key &&
2540 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2541 params->key_len, params->key)) ||
2542 (params->seq &&
2543 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2544 params->seq_len, params->seq)) ||
2545 (params->cipher &&
2546 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2547 params->cipher)))
2548 goto nla_put_failure;
41ade00f 2549
b9454e83
JB		 2550 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2551 if (!key)
2552 goto nla_put_failure;
2553
9360ffd1
DM		 2554 if ((params->key &&
2555 nla_put(cookie->msg, NL80211_KEY_DATA,
2556 params->key_len, params->key)) ||
2557 (params->seq &&
2558 nla_put(cookie->msg, NL80211_KEY_SEQ,
2559 params->seq_len, params->seq)) ||
2560 (params->cipher &&
2561 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2562 params->cipher)))
2563 goto nla_put_failure;
b9454e83 2564
9360ffd1
DM		 2565 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2566 goto nla_put_failure;
b9454e83
JB		 2567
2568 nla_nest_end(cookie->msg, key);
2569
41ade00f
JB		 2570 return;
2571 nla_put_failure:
2572 cookie->error = 1;
2573}
2574
2575static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2576{
4c476991 2577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2578 int err;
4c476991 2579 struct net_device *dev = info->user_ptr[1];
41ade00f 2580 u8 key_idx = 0;
e31b8213
JB		 2581 const u8 *mac_addr = NULL;
2582 bool pairwise;
41ade00f
JB		 2583 struct get_key_cookie cookie = {
2584 .error = 0,
2585 };
2586 void *hdr;
2587 struct sk_buff *msg;
2588
2589 if (info->attrs[NL80211_ATTR_KEY_IDX])
2590 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2591
3cfcf6ac 2592 if (key_idx > 5)
41ade00f
JB		 2593 return -EINVAL;
2594
2595 if (info->attrs[NL80211_ATTR_MAC])
2596 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2597
e31b8213
JB		 2598 pairwise = !!mac_addr;
2599 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2600 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2601 if (kt >= NUM_NL80211_KEYTYPES)
2602 return -EINVAL;
2603 if (kt != NL80211_KEYTYPE_GROUP &&
2604 kt != NL80211_KEYTYPE_PAIRWISE)
2605 return -EINVAL;
2606 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2607 }
2608
4c476991
JB		 2609 if (!rdev->ops->get_key)
2610 return -EOPNOTSUPP;
41ade00f 2611
fd2120ca 2612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2613 if (!msg)
2614 return -ENOMEM;
41ade00f 2615
15e47304 2616 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2617 NL80211_CMD_NEW_KEY);
4c476991
JB		 2618 if (IS_ERR(hdr))
2619 return PTR_ERR(hdr);
41ade00f
JB		 2620
2621 cookie.msg = msg;
b9454e83 2622 cookie.idx = key_idx;
41ade00f 2623
9360ffd1
DM		 2624 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2625 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2626 goto nla_put_failure;
2627 if (mac_addr &&
2628 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2629 goto nla_put_failure;
41ade00f 2630
e31b8213
JB		 2631 if (pairwise && mac_addr &&
2632 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2633 return -ENOENT;
2634
e35e4d28
HG		 2635 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2636 get_key_callback);
41ade00f
JB		 2637
2638 if (err)
6c95e2a2 2639 goto free_msg;
41ade00f
JB		 2640
2641 if (cookie.error)
2642 goto nla_put_failure;
2643
2644 genlmsg_end(msg, hdr);
4c476991 2645 return genlmsg_reply(msg, info);
41ade00f
JB		 2646
2647 nla_put_failure:
2648 err = -ENOBUFS;
6c95e2a2 2649 free_msg:
41ade00f 2650 nlmsg_free(msg);
41ade00f
JB		 2651 return err;
2652}
2653
2654static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2655{
4c476991 2656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2657 struct key_parse key;
41ade00f 2658 int err;
4c476991 2659 struct net_device *dev = info->user_ptr[1];
41ade00f 2660
b9454e83
JB		 2661 err = nl80211_parse_key(info, &key);
2662 if (err)
2663 return err;
41ade00f 2664
b9454e83 2665 if (key.idx < 0)
41ade00f
JB		 2666 return -EINVAL;
2667
b9454e83
JB		 2668 /* only support setting default key */
2669 if (!key.def && !key.defmgmt)
41ade00f
JB		 2670 return -EINVAL;
2671
dbd2fd65 2672 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2673
dbd2fd65
JB		 2674 if (key.def) {
2675 if (!rdev->ops->set_default_key) {
2676 err = -EOPNOTSUPP;
2677 goto out;
2678 }
41ade00f 2679
dbd2fd65
JB		 2680 err = nl80211_key_allowed(dev->ieee80211_ptr);
2681 if (err)
2682 goto out;
2683
e35e4d28 2684 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2685 key.def_uni, key.def_multi);
2686
2687 if (err)
2688 goto out;
fffd0934 2689
3d23e349 2690#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2691 dev->ieee80211_ptr->wext.default_key = key.idx;
2692#endif
2693 } else {
2694 if (key.def_uni || !key.def_multi) {
2695 err = -EINVAL;
2696 goto out;
2697 }
2698
2699 if (!rdev->ops->set_default_mgmt_key) {
2700 err = -EOPNOTSUPP;
2701 goto out;
2702 }
2703
2704 err = nl80211_key_allowed(dev->ieee80211_ptr);
2705 if (err)
2706 goto out;
2707
e35e4d28 2708 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2709 if (err)
2710 goto out;
2711
2712#ifdef CONFIG_CFG80211_WEXT
2713 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2714#endif
dbd2fd65
JB		 2715 }
2716
2717 out:
fffd0934 2718 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2719
41ade00f
JB		 2720 return err;
2721}
2722
2723static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2724{
4c476991 2725 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2726 int err;
4c476991 2727 struct net_device *dev = info->user_ptr[1];
b9454e83 2728 struct key_parse key;
e31b8213 2729 const u8 *mac_addr = NULL;
41ade00f 2730
b9454e83
JB		 2731 err = nl80211_parse_key(info, &key);
2732 if (err)
2733 return err;
41ade00f 2734
b9454e83 2735 if (!key.p.key)
41ade00f
JB		 2736 return -EINVAL;
2737
41ade00f
JB		 2738 if (info->attrs[NL80211_ATTR_MAC])
2739 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2740
e31b8213
JB		 2741 if (key.type == -1) {
2742 if (mac_addr)
2743 key.type = NL80211_KEYTYPE_PAIRWISE;
2744 else
2745 key.type = NL80211_KEYTYPE_GROUP;
2746 }
2747
2748 /* for now */
2749 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2750 key.type != NL80211_KEYTYPE_GROUP)
2751 return -EINVAL;
2752
4c476991
JB		 2753 if (!rdev->ops->add_key)
2754 return -EOPNOTSUPP;
25e47c18 2755
e31b8213
JB		 2756 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2757 key.type == NL80211_KEYTYPE_PAIRWISE,
2758 mac_addr))
4c476991 2759 return -EINVAL;
41ade00f 2760
fffd0934
JB		 2761 wdev_lock(dev->ieee80211_ptr);
2762 err = nl80211_key_allowed(dev->ieee80211_ptr);
2763 if (!err)
e35e4d28
HG		 2764 err = rdev_add_key(rdev, dev, key.idx,
2765 key.type == NL80211_KEYTYPE_PAIRWISE,
2766 mac_addr, &key.p);
fffd0934 2767 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2768
41ade00f
JB		 2769 return err;
2770}
2771
2772static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2773{
4c476991 2774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2775 int err;
4c476991 2776 struct net_device *dev = info->user_ptr[1];
41ade00f 2777 u8 *mac_addr = NULL;
b9454e83 2778 struct key_parse key;
41ade00f 2779
b9454e83
JB		 2780 err = nl80211_parse_key(info, &key);
2781 if (err)
2782 return err;
41ade00f
JB		 2783
2784 if (info->attrs[NL80211_ATTR_MAC])
2785 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2786
e31b8213
JB		 2787 if (key.type == -1) {
2788 if (mac_addr)
2789 key.type = NL80211_KEYTYPE_PAIRWISE;
2790 else
2791 key.type = NL80211_KEYTYPE_GROUP;
2792 }
2793
2794 /* for now */
2795 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2796 key.type != NL80211_KEYTYPE_GROUP)
2797 return -EINVAL;
2798
4c476991
JB		 2799 if (!rdev->ops->del_key)
2800 return -EOPNOTSUPP;
41ade00f 2801
fffd0934
JB		 2802 wdev_lock(dev->ieee80211_ptr);
2803 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2804
2805 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2806 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2807 err = -ENOENT;
2808
fffd0934 2809 if (!err)
e35e4d28
HG		 2810 err = rdev_del_key(rdev, dev, key.idx,
2811 key.type == NL80211_KEYTYPE_PAIRWISE,
2812 mac_addr);
41ade00f 2813
3d23e349 2814#ifdef CONFIG_CFG80211_WEXT
08645126 2815 if (!err) {
b9454e83 2816 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2817 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2818 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2819 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2820 }
2821#endif
fffd0934 2822 wdev_unlock(dev->ieee80211_ptr);
08645126 2823
41ade00f
JB		 2824 return err;
2825}
2826
77765eaf
VT		 2827/* This function returns an error or the number of nested attributes */
2828static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2829{
2830 struct nlattr *attr;
2831 int n_entries = 0, tmp;
2832
2833 nla_for_each_nested(attr, nl_attr, tmp) {
2834 if (nla_len(attr) != ETH_ALEN)
2835 return -EINVAL;
2836
2837 n_entries++;
2838 }
2839
2840 return n_entries;
2841}
2842
2843/*
2844 * This function parses ACL information and allocates memory for ACL data.
2845 * On successful return, the calling function is responsible to free the
2846 * ACL buffer returned by this function.
2847 */
2848static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2849 struct genl_info *info)
2850{
2851 enum nl80211_acl_policy acl_policy;
2852 struct nlattr *attr;
2853 struct cfg80211_acl_data *acl;
2854 int i = 0, n_entries, tmp;
2855
2856 if (!wiphy->max_acl_mac_addrs)
2857 return ERR_PTR(-EOPNOTSUPP);
2858
2859 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2860 return ERR_PTR(-EINVAL);
2861
2862 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2863 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2864 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2865 return ERR_PTR(-EINVAL);
2866
2867 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2868 return ERR_PTR(-EINVAL);
2869
2870 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2871 if (n_entries < 0)
2872 return ERR_PTR(n_entries);
2873
2874 if (n_entries > wiphy->max_acl_mac_addrs)
2875 return ERR_PTR(-ENOTSUPP);
2876
2877 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2878 GFP_KERNEL);
2879 if (!acl)
2880 return ERR_PTR(-ENOMEM);
2881
2882 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2883 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2884 i++;
2885 }
2886
2887 acl->n_acl_entries = n_entries;
2888 acl->acl_policy = acl_policy;
2889
2890 return acl;
2891}
2892
2893static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2894{
2895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2896 struct net_device *dev = info->user_ptr[1];
2897 struct cfg80211_acl_data *acl;
2898 int err;
2899
2900 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2901 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2902 return -EOPNOTSUPP;
2903
2904 if (!dev->ieee80211_ptr->beacon_interval)
2905 return -EINVAL;
2906
2907 acl = parse_acl_data(&rdev->wiphy, info);
2908 if (IS_ERR(acl))
2909 return PTR_ERR(acl);
2910
2911 err = rdev_set_mac_acl(rdev, dev, acl);
2912
2913 kfree(acl);
2914
2915 return err;
2916}
2917
8860020e
JB		 2918static int nl80211_parse_beacon(struct genl_info *info,
2919 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2920{
8860020e 2921 bool haveinfo = false;
ed1b6cc7 2922
9946ecfb
JM		 2923 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2924 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2925 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2926 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2927 return -EINVAL;
2928
8860020e 2929 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2930
ed1b6cc7 2931 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2932 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2933 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2934 if (!bcn->head_len)
2935 return -EINVAL;
2936 haveinfo = true;
ed1b6cc7
JB		 2937 }
2938
2939 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2940 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2941 bcn->tail_len =
ed1b6cc7 2942 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2943 haveinfo = true;
ed1b6cc7
JB		 2944 }
2945
4c476991
JB		 2946 if (!haveinfo)
2947 return -EINVAL;
3b85875a 2948
9946ecfb 2949 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2950 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2951 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2952 }
2953
2954 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2955 bcn->proberesp_ies =
9946ecfb 2956 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2957 bcn->proberesp_ies_len =
9946ecfb
JM		 2958 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2959 }
2960
2961 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2962 bcn->assocresp_ies =
9946ecfb 2963 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2964 bcn->assocresp_ies_len =
9946ecfb
JM		 2965 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2966 }
2967
00f740e1 2968 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2969 bcn->probe_resp =
00f740e1 2970 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2971 bcn->probe_resp_len =
00f740e1
AN		 2972 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2973 }
2974
8860020e
JB		 2975 return 0;
2976}
2977
46c1dd0c
FF		 2978static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2979 struct cfg80211_ap_settings *params)
2980{
2981 struct wireless_dev *wdev;
2982 bool ret = false;
2983
2984 mutex_lock(&rdev->devlist_mtx);
2985
89a54e48 2986 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2987 if (wdev->iftype != NL80211_IFTYPE_AP &&
2988 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2989 continue;
2990
683b6d3b 2991 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2992 continue;
2993
683b6d3b 2994 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2995 ret = true;
2996 break;
2997 }
2998
2999 mutex_unlock(&rdev->devlist_mtx);
3000
3001 return ret;
3002}
3003
e39e5b5e
JM		 3004static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3005 enum nl80211_auth_type auth_type,
3006 enum nl80211_commands cmd)
3007{
3008 if (auth_type > NL80211_AUTHTYPE_MAX)
3009 return false;
3010
3011 switch (cmd) {
3012 case NL80211_CMD_AUTHENTICATE:
3013 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3014 auth_type == NL80211_AUTHTYPE_SAE)
3015 return false;
3016 return true;
3017 case NL80211_CMD_CONNECT:
3018 case NL80211_CMD_START_AP:
3019 /* SAE not supported yet */
3020 if (auth_type == NL80211_AUTHTYPE_SAE)
3021 return false;
3022 return true;
3023 default:
3024 return false;
3025 }
3026}
3027
8860020e
JB		 3028static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3029{
3030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3031 struct net_device *dev = info->user_ptr[1];
3032 struct wireless_dev *wdev = dev->ieee80211_ptr;
3033 struct cfg80211_ap_settings params;
3034 int err;
04f39047 3035 u8 radar_detect_width = 0;
8860020e
JB		 3036
3037 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3038 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3039 return -EOPNOTSUPP;
3040
3041 if (!rdev->ops->start_ap)
3042 return -EOPNOTSUPP;
3043
3044 if (wdev->beacon_interval)
3045 return -EALREADY;
3046
3047 memset(&params, 0, sizeof(params));
3048
3049 /* these are required for START_AP */
3050 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3051 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3052 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3053 return -EINVAL;
3054
3055 err = nl80211_parse_beacon(info, &params.beacon);
3056 if (err)
3057 return err;
3058
3059 params.beacon_interval =
3060 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3061 params.dtim_period =
3062 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3063
3064 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3065 if (err)
3066 return err;
3067
3068 /*
3069 * In theory, some of these attributes should be required here
3070 * but since they were not used when the command was originally
3071 * added, keep them optional for old user space programs to let
3072 * them continue to work with drivers that do not need the
3073 * additional information -- drivers must check!
3074 */
3075 if (info->attrs[NL80211_ATTR_SSID]) {
3076 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3077 params.ssid_len =
3078 nla_len(info->attrs[NL80211_ATTR_SSID]);
3079 if (params.ssid_len == 0 ||
3080 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3081 return -EINVAL;
3082 }
3083
3084 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3085 params.hidden_ssid = nla_get_u32(
3086 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3087 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3088 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3089 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3090 return -EINVAL;
3091 }
3092
3093 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3094
3095 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3096 params.auth_type = nla_get_u32(
3097 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3098 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3099 NL80211_CMD_START_AP))
8860020e
JB		 3100 return -EINVAL;
3101 } else
3102 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3103
3104 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3105 NL80211_MAX_NR_CIPHER_SUITES);
3106 if (err)
3107 return err;
3108
1b658f11
VT		 3109 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3110 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3111 return -EOPNOTSUPP;
3112 params.inactivity_timeout = nla_get_u16(
3113 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3114 }
3115
53cabad7
JB		 3116 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3117 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3118 return -EINVAL;
3119 params.p2p_ctwindow =
3120 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3121 if (params.p2p_ctwindow > 127)
3122 return -EINVAL;
3123 if (params.p2p_ctwindow != 0 &&
3124 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3125 return -EINVAL;
3126 }
3127
3128 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3129 u8 tmp;
3130
3131 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3132 return -EINVAL;
3133 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3134 if (tmp > 1)
3135 return -EINVAL;
3136 params.p2p_opp_ps = tmp;
3137 if (params.p2p_opp_ps != 0 &&
3138 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3139 return -EINVAL;
3140 }
3141
aa430da4 3142 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3143 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3144 if (err)
3145 return err;
3146 } else if (wdev->preset_chandef.chan) {
3147 params.chandef = wdev->preset_chandef;
46c1dd0c 3148 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3149 return -EINVAL;
3150
683b6d3b 3151 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3152 return -EINVAL;
3153
04f39047
SW		 3154 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3155 if (err < 0)
3156 return err;
3157 if (err) {
3158 radar_detect_width = BIT(params.chandef.width);
3159 params.radar_required = true;
3160 }
3161
e4e32459 3162 mutex_lock(&rdev->devlist_mtx);
04f39047
SW		 3163 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3164 params.chandef.chan,
3165 CHAN_MODE_SHARED,
3166 radar_detect_width);
e4e32459
MK		 3167 mutex_unlock(&rdev->devlist_mtx);
3168
3169 if (err)
3170 return err;
3171
77765eaf
VT		 3172 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3173 params.acl = parse_acl_data(&rdev->wiphy, info);
3174 if (IS_ERR(params.acl))
3175 return PTR_ERR(params.acl);
3176 }
3177
e35e4d28 3178 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3179 if (!err) {
683b6d3b 3180 wdev->preset_chandef = params.chandef;
8860020e 3181 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3182 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3183 wdev->ssid_len = params.ssid_len;
3184 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3185 }
77765eaf
VT		 3186
3187 kfree(params.acl);
3188
56d1893d 3189 return err;
ed1b6cc7
JB		 3190}
3191
8860020e
JB		 3192static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3193{
3194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3195 struct net_device *dev = info->user_ptr[1];
3196 struct wireless_dev *wdev = dev->ieee80211_ptr;
3197 struct cfg80211_beacon_data params;
3198 int err;
3199
3200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3202 return -EOPNOTSUPP;
3203
3204 if (!rdev->ops->change_beacon)
3205 return -EOPNOTSUPP;
3206
3207 if (!wdev->beacon_interval)
3208 return -EINVAL;
3209
3210 err = nl80211_parse_beacon(info, &params);
3211 if (err)
3212 return err;
3213
e35e4d28 3214 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3215}
3216
3217static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3218{
4c476991
JB		 3219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3220 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3221
60771780 3222 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3223}
3224
5727ef1b
JB		 3225static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3226 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3227 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3228 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3229 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3230 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3231 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3232};
3233
eccb8e8f 3234static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3235 enum nl80211_iftype iftype,
eccb8e8f 3236 struct station_parameters *params)
5727ef1b
JB		 3237{
3238 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3239 struct nlattr *nla;
5727ef1b
JB		 3240 int flag;
3241
eccb8e8f
JB		 3242 /*
3243 * Try parsing the new attribute first so userspace
3244 * can specify both for older kernels.
3245 */
3246 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3247 if (nla) {
3248 struct nl80211_sta_flag_update *sta_flags;
3249
3250 sta_flags = nla_data(nla);
3251 params->sta_flags_mask = sta_flags->mask;
3252 params->sta_flags_set = sta_flags->set;
77ee7c89 3253 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3254 if ((params->sta_flags_mask |
3255 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3256 return -EINVAL;
3257 return 0;
3258 }
3259
3260 /* if present, parse the old attribute */
5727ef1b 3261
eccb8e8f 3262 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3263 if (!nla)
3264 return 0;
3265
3266 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3267 nla, sta_flags_policy))
3268 return -EINVAL;
3269
bdd3ae3d
JB		 3270 /*
3271 * Only allow certain flags for interface types so that
3272 * other attributes are silently ignored. Remember that
3273 * this is backward compatibility code with old userspace
3274 * and shouldn't be hit in other cases anyway.
3275 */
3276 switch (iftype) {
3277 case NL80211_IFTYPE_AP:
3278 case NL80211_IFTYPE_AP_VLAN:
3279 case NL80211_IFTYPE_P2P_GO:
3280 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3281 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3282 BIT(NL80211_STA_FLAG_WME) |
3283 BIT(NL80211_STA_FLAG_MFP);
3284 break;
3285 case NL80211_IFTYPE_P2P_CLIENT:
3286 case NL80211_IFTYPE_STATION:
3287 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3288 BIT(NL80211_STA_FLAG_TDLS_PEER);
3289 break;
3290 case NL80211_IFTYPE_MESH_POINT:
3291 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3292 BIT(NL80211_STA_FLAG_MFP) |
3293 BIT(NL80211_STA_FLAG_AUTHORIZED);
3294 default:
3295 return -EINVAL;
3296 }
5727ef1b 3297
3383b5a6
JB		 3298 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3299 if (flags[flag]) {
eccb8e8f 3300 params->sta_flags_set |= (1<<flag);
5727ef1b 3301
3383b5a6
JB		 3302 /* no longer support new API additions in old API */
3303 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3304 return -EINVAL;
3305 }
3306 }
3307
5727ef1b
JB		 3308 return 0;
3309}
3310
c8dcfd8a
FF		 3311static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3312 int attr)
3313{
3314 struct nlattr *rate;
8eb41c8d
VK		 3315 u32 bitrate;
3316 u16 bitrate_compat;
c8dcfd8a
FF		 3317
3318 rate = nla_nest_start(msg, attr);
3319 if (!rate)
db9c64cf 3320 return false;
c8dcfd8a
FF		 3321
3322 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3323 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3324 /* report 16-bit bitrate only if we can */
3325 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3326 if (bitrate > 0 &&
3327 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3328 return false;
3329 if (bitrate_compat > 0 &&
3330 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3331 return false;
3332
3333 if (info->flags & RATE_INFO_FLAGS_MCS) {
3334 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3335 return false;
3336 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3337 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3338 return false;
3339 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3340 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3341 return false;
3342 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3343 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3344 return false;
3345 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
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_80_MHZ_WIDTH &&
3351 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3352 return false;
3353 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3354 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3355 return false;
3356 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3357 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3358 return false;
3359 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3360 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3361 return false;
3362 }
c8dcfd8a
FF		 3363
3364 nla_nest_end(msg, rate);
3365 return true;
c8dcfd8a
FF		 3366}
3367
15e47304 3368static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3369 int flags,
3370 struct cfg80211_registered_device *rdev,
3371 struct net_device *dev,
98b62183 3372 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3373{
3374 void *hdr;
f4263c98 3375 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3376
15e47304 3377 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3378 if (!hdr)
3379 return -1;
3380
9360ffd1
DM		 3381 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3382 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3383 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3384 goto nla_put_failure;
f5ea9120 3385
2ec600d6
LCC		 3386 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3387 if (!sinfoattr)
fd5b74dc 3388 goto nla_put_failure;
9360ffd1
DM		 3389 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3390 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3391 sinfo->connected_time))
3392 goto nla_put_failure;
3393 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3394 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3395 sinfo->inactive_time))
3396 goto nla_put_failure;
42745e03
VK		 3397 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3398 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3399 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3400 (u32)sinfo->rx_bytes))
9360ffd1 3401 goto nla_put_failure;
42745e03
VK		 3402 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3403 NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3404 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3405 (u32)sinfo->tx_bytes))
3406 goto nla_put_failure;
3407 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3408 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3409 sinfo->rx_bytes))
3410 goto nla_put_failure;
3411 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3412 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3413 sinfo->tx_bytes))
3414 goto nla_put_failure;
3415 if ((sinfo->filled & STATION_INFO_LLID) &&
3416 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3417 goto nla_put_failure;
3418 if ((sinfo->filled & STATION_INFO_PLID) &&
3419 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3420 goto nla_put_failure;
3421 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3422 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3423 sinfo->plink_state))
3424 goto nla_put_failure;
66266b3a
JL		 3425 switch (rdev->wiphy.signal_type) {
3426 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3427 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3428 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3429 sinfo->signal))
3430 goto nla_put_failure;
3431 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3432 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3433 sinfo->signal_avg))
3434 goto nla_put_failure;
66266b3a
JL		 3435 break;
3436 default:
3437 break;
3438 }
420e7fab 3439 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3440 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3441 NL80211_STA_INFO_TX_BITRATE))
3442 goto nla_put_failure;
3443 }
3444 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3445 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3446 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3447 goto nla_put_failure;
420e7fab 3448 }
9360ffd1
DM		 3449 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3450 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3451 sinfo->rx_packets))
3452 goto nla_put_failure;
3453 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3454 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3455 sinfo->tx_packets))
3456 goto nla_put_failure;
3457 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3458 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3459 sinfo->tx_retries))
3460 goto nla_put_failure;
3461 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3462 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3463 sinfo->tx_failed))
3464 goto nla_put_failure;
3465 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3466 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3467 sinfo->beacon_loss_count))
3468 goto nla_put_failure;
3b1c5a53
MP		 3469 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3470 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3471 sinfo->local_pm))
3472 goto nla_put_failure;
3473 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3474 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3475 sinfo->peer_pm))
3476 goto nla_put_failure;
3477 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3478 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3479 sinfo->nonpeer_pm))
3480 goto nla_put_failure;
f4263c98
PS		 3481 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3482 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3483 if (!bss_param)
3484 goto nla_put_failure;
3485
9360ffd1
DM		 3486 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3487 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3488 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3489 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3490 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3491 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3492 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3493 sinfo->bss_param.dtim_period) ||
3494 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3495 sinfo->bss_param.beacon_interval))
3496 goto nla_put_failure;
f4263c98
PS		 3497
3498 nla_nest_end(msg, bss_param);
3499 }
9360ffd1
DM		 3500 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3501 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3502 sizeof(struct nl80211_sta_flag_update),
3503 &sinfo->sta_flags))
3504 goto nla_put_failure;
7eab0f64
JL		 3505 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3506 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3507 sinfo->t_offset))
3508 goto nla_put_failure;
2ec600d6 3509 nla_nest_end(msg, sinfoattr);
fd5b74dc 3510
9360ffd1
DM		 3511 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3512 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3513 sinfo->assoc_req_ies))
3514 goto nla_put_failure;
50d3dfb7 3515
fd5b74dc
JB		 3516 return genlmsg_end(msg, hdr);
3517
3518 nla_put_failure:
bc3ed28c
TG		 3519 genlmsg_cancel(msg, hdr);
3520 return -EMSGSIZE;
fd5b74dc
JB		 3521}
3522
2ec600d6 3523static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3524 struct netlink_callback *cb)
2ec600d6 3525{
2ec600d6
LCC		 3526 struct station_info sinfo;
3527 struct cfg80211_registered_device *dev;
bba95fef 3528 struct net_device *netdev;
2ec600d6 3529 u8 mac_addr[ETH_ALEN];
bba95fef 3530 int sta_idx = cb->args[1];
2ec600d6 3531 int err;
2ec600d6 3532
67748893
JB		 3533 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3534 if (err)
3535 return err;
bba95fef
JB		 3536
3537 if (!dev->ops->dump_station) {
eec60b03 3538 err = -EOPNOTSUPP;
bba95fef
JB		 3539 goto out_err;
3540 }
3541
bba95fef 3542 while (1) {
f612cedf 3543 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3544 err = rdev_dump_station(dev, netdev, sta_idx,
3545 mac_addr, &sinfo);
bba95fef
JB		 3546 if (err == -ENOENT)
3547 break;
3548 if (err)
3b85875a 3549 goto out_err;
bba95fef
JB		 3550
3551 if (nl80211_send_station(skb,
15e47304 3552 NETLINK_CB(cb->skb).portid,
bba95fef 3553 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3554 dev, netdev, mac_addr,
bba95fef
JB		 3555 &sinfo) < 0)
3556 goto out;
3557
3558 sta_idx++;
3559 }
3560
3561
3562 out:
3563 cb->args[1] = sta_idx;
3564 err = skb->len;
bba95fef 3565 out_err:
67748893 3566 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3567
3568 return err;
2ec600d6 3569}
fd5b74dc 3570
5727ef1b
JB		 3571static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3572{
4c476991
JB		 3573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3574 struct net_device *dev = info->user_ptr[1];
2ec600d6 3575 struct station_info sinfo;
fd5b74dc
JB		 3576 struct sk_buff *msg;
3577 u8 *mac_addr = NULL;
4c476991 3578 int err;
fd5b74dc 3579
2ec600d6 3580 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3581
3582 if (!info->attrs[NL80211_ATTR_MAC])
3583 return -EINVAL;
3584
3585 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3586
4c476991
JB		 3587 if (!rdev->ops->get_station)
3588 return -EOPNOTSUPP;
3b85875a 3589
e35e4d28 3590 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3591 if (err)
4c476991 3592 return err;
2ec600d6 3593
fd2120ca 3594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3595 if (!msg)
4c476991 3596 return -ENOMEM;
fd5b74dc 3597
15e47304 3598 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3599 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3600 nlmsg_free(msg);
3601 return -ENOBUFS;
3602 }
3b85875a 3603
4c476991 3604 return genlmsg_reply(msg, info);
5727ef1b
JB		 3605}
3606
77ee7c89
JB		 3607int cfg80211_check_station_change(struct wiphy *wiphy,
3608 struct station_parameters *params,
3609 enum cfg80211_station_type statype)
3610{
3611 if (params->listen_interval != -1)
3612 return -EINVAL;
3613 if (params->aid)
3614 return -EINVAL;
3615
3616 /* When you run into this, adjust the code below for the new flag */
3617 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3618
3619 switch (statype) {
3620 case CFG80211_STA_MESH_PEER_NONSEC:
3621 case CFG80211_STA_MESH_PEER_SECURE:
3622 /*
3623 * No ignoring the TDLS flag here -- the userspace mesh
3624 * code doesn't have the bug of including TDLS in the
3625 * mask everywhere.
3626 */
3627 if (params->sta_flags_mask &
3628 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3629 BIT(NL80211_STA_FLAG_MFP) |
3630 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3631 return -EINVAL;
3632 break;
3633 case CFG80211_STA_TDLS_PEER_SETUP:
3634 case CFG80211_STA_TDLS_PEER_ACTIVE:
3635 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3636 return -EINVAL;
3637 /* ignore since it can't change */
3638 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3639 break;
3640 default:
3641 /* disallow mesh-specific things */
3642 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3643 return -EINVAL;
3644 if (params->local_pm)
3645 return -EINVAL;
3646 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3647 return -EINVAL;
3648 }
3649
3650 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3651 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3652 /* TDLS can't be set, ... */
3653 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3654 return -EINVAL;
3655 /*
3656 * ... but don't bother the driver with it. This works around
3657 * a hostapd/wpa_supplicant issue -- it always includes the
3658 * TLDS_PEER flag in the mask even for AP mode.
3659 */
3660 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3661 }
3662
3663 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3664 /* reject other things that can't change */
3665 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3666 return -EINVAL;
3667 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3668 return -EINVAL;
3669 if (params->supported_rates)
3670 return -EINVAL;
3671 if (params->ext_capab || params->ht_capa || params->vht_capa)
3672 return -EINVAL;
3673 }
3674
3675 if (statype != CFG80211_STA_AP_CLIENT) {
3676 if (params->vlan)
3677 return -EINVAL;
3678 }
3679
3680 switch (statype) {
3681 case CFG80211_STA_AP_MLME_CLIENT:
3682 /* Use this only for authorizing/unauthorizing a station */
3683 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3684 return -EOPNOTSUPP;
3685 break;
3686 case CFG80211_STA_AP_CLIENT:
3687 /* accept only the listed bits */
3688 if (params->sta_flags_mask &
3689 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3690 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3691 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3692 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3693 BIT(NL80211_STA_FLAG_WME) |
3694 BIT(NL80211_STA_FLAG_MFP)))
3695 return -EINVAL;
3696
3697 /* but authenticated/associated only if driver handles it */
3698 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3699 params->sta_flags_mask &
3700 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3701 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3702 return -EINVAL;
3703 break;
3704 case CFG80211_STA_IBSS:
3705 case CFG80211_STA_AP_STA:
3706 /* reject any changes other than AUTHORIZED */
3707 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3708 return -EINVAL;
3709 break;
3710 case CFG80211_STA_TDLS_PEER_SETUP:
3711 /* reject any changes other than AUTHORIZED or WME */
3712 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3713 BIT(NL80211_STA_FLAG_WME)))
3714 return -EINVAL;
3715 /* force (at least) rates when authorizing */
3716 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3717 !params->supported_rates)
3718 return -EINVAL;
3719 break;
3720 case CFG80211_STA_TDLS_PEER_ACTIVE:
3721 /* reject any changes */
3722 return -EINVAL;
3723 case CFG80211_STA_MESH_PEER_NONSEC:
3724 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3725 return -EINVAL;
3726 break;
3727 case CFG80211_STA_MESH_PEER_SECURE:
3728 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3729 return -EINVAL;
3730 break;
3731 }
3732
3733 return 0;
3734}
3735EXPORT_SYMBOL(cfg80211_check_station_change);
3736
5727ef1b 3737/*
c258d2de 3738 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3739 */
80b99899
JB		 3740static struct net_device *get_vlan(struct genl_info *info,
3741 struct cfg80211_registered_device *rdev)
5727ef1b 3742{
463d0183 3743 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3744 struct net_device *v;
3745 int ret;
3746
3747 if (!vlanattr)
3748 return NULL;
3749
3750 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3751 if (!v)
3752 return ERR_PTR(-ENODEV);
3753
3754 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3755 ret = -EINVAL;
3756 goto error;
5727ef1b 3757 }
80b99899 3758
77ee7c89
JB		 3759 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3760 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3761 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3762 ret = -EINVAL;
3763 goto error;
3764 }
3765
80b99899
JB		 3766 if (!netif_running(v)) {
3767 ret = -ENETDOWN;
3768 goto error;
3769 }
3770
3771 return v;
3772 error:
3773 dev_put(v);
3774 return ERR_PTR(ret);
5727ef1b
JB		 3775}
3776
df881293
JM		 3777static struct nla_policy
3778nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3779 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3780 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3781};
3782
ff276691
JB		 3783static int nl80211_parse_sta_wme(struct genl_info *info,
3784 struct station_parameters *params)
df881293 3785{
df881293
JM		 3786 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3787 struct nlattr *nla;
3788 int err;
3789
df881293
JM		 3790 /* parse WME attributes if present */
3791 if (!info->attrs[NL80211_ATTR_STA_WME])
3792 return 0;
3793
3794 nla = info->attrs[NL80211_ATTR_STA_WME];
3795 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3796 nl80211_sta_wme_policy);
3797 if (err)
3798 return err;
3799
3800 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3801 params->uapsd_queues = nla_get_u8(
3802 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3803 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3804 return -EINVAL;
3805
3806 if (tb[NL80211_STA_WME_MAX_SP])
3807 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3808
3809 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3810 return -EINVAL;
3811
3812 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3813
3814 return 0;
3815}
3816
ff276691
JB		 3817static int nl80211_set_station_tdls(struct genl_info *info,
3818 struct station_parameters *params)
3819{
3820 /* Dummy STA entry gets updated once the peer capabilities are known */
3821 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3822 params->ht_capa =
3823 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3824 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3825 params->vht_capa =
3826 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3827
3828 return nl80211_parse_sta_wme(info, params);
3829}
3830
5727ef1b
JB		 3831static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3832{
4c476991 3833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3834 struct net_device *dev = info->user_ptr[1];
5727ef1b 3835 struct station_parameters params;
77ee7c89
JB		 3836 u8 *mac_addr;
3837 int err;
5727ef1b
JB		 3838
3839 memset(&params, 0, sizeof(params));
3840
3841 params.listen_interval = -1;
3842
77ee7c89
JB		 3843 if (!rdev->ops->change_station)
3844 return -EOPNOTSUPP;
3845
5727ef1b
JB		 3846 if (info->attrs[NL80211_ATTR_STA_AID])
3847 return -EINVAL;
3848
3849 if (!info->attrs[NL80211_ATTR_MAC])
3850 return -EINVAL;
3851
3852 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3853
3854 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3855 params.supported_rates =
3856 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3857 params.supported_rates_len =
3858 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3859 }
3860
9d62a986
JM		 3861 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3862 params.capability =
3863 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3864 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3865 }
3866
3867 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3868 params.ext_capab =
3869 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3870 params.ext_capab_len =
3871 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3872 }
3873
df881293 3874 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3875 return -EINVAL;
36aedc90 3876
bdd3ae3d 3877 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3878 return -EINVAL;
3879
f8bacc21 3880 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3881 params.plink_action =
f8bacc21
JB		 3882 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3883 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3884 return -EINVAL;
3885 }
2ec600d6 3886
f8bacc21 3887 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3888 params.plink_state =
f8bacc21
JB		 3889 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3890 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3891 return -EINVAL;
3892 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3893 }
9c3990aa 3894
3b1c5a53
MP		 3895 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3896 enum nl80211_mesh_power_mode pm = nla_get_u32(
3897 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3898
3899 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3900 pm > NL80211_MESH_POWER_MAX)
3901 return -EINVAL;
3902
3903 params.local_pm = pm;
3904 }
3905
77ee7c89
JB		 3906 /* Include parameters for TDLS peer (will check later) */
3907 err = nl80211_set_station_tdls(info, &params);
3908 if (err)
3909 return err;
3910
3911 params.vlan = get_vlan(info, rdev);
3912 if (IS_ERR(params.vlan))
3913 return PTR_ERR(params.vlan);
3914
a97f4424
JB		 3915 switch (dev->ieee80211_ptr->iftype) {
3916 case NL80211_IFTYPE_AP:
3917 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3918 case NL80211_IFTYPE_P2P_GO:
074ac8df 3919 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3920 case NL80211_IFTYPE_STATION:
267335d6 3921 case NL80211_IFTYPE_ADHOC:
a97f4424 3922 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3923 break;
3924 default:
77ee7c89
JB		 3925 err = -EOPNOTSUPP;
3926 goto out_put_vlan;
034d655e
JB		 3927 }
3928
77ee7c89 3929 /* driver will call cfg80211_check_station_change() */
e35e4d28 3930 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3931
77ee7c89 3932 out_put_vlan:
5727ef1b
JB		 3933 if (params.vlan)
3934 dev_put(params.vlan);
3b85875a 3935
5727ef1b
JB		 3936 return err;
3937}
3938
3939static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3940{
4c476991 3941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3942 int err;
4c476991 3943 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3944 struct station_parameters params;
3945 u8 *mac_addr = NULL;
3946
3947 memset(&params, 0, sizeof(params));
3948
984c311b
JB		 3949 if (!rdev->ops->add_station)
3950 return -EOPNOTSUPP;
3951
5727ef1b
JB		 3952 if (!info->attrs[NL80211_ATTR_MAC])
3953 return -EINVAL;
3954
5727ef1b
JB		 3955 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3956 return -EINVAL;
3957
3958 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3959 return -EINVAL;
3960
0e956c13
TLSC		 3961 if (!info->attrs[NL80211_ATTR_STA_AID])
3962 return -EINVAL;
3963
5727ef1b
JB		 3964 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3965 params.supported_rates =
3966 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3967 params.supported_rates_len =
3968 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3969 params.listen_interval =
3970 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3971
0e956c13
TLSC		 3972 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3973 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3974 return -EINVAL;
51b50fbe 3975
9d62a986
JM		 3976 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3977 params.capability =
3978 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3979 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3980 }
3981
3982 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3983 params.ext_capab =
3984 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3985 params.ext_capab_len =
3986 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3987 }
3988
36aedc90
JM		 3989 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3990 params.ht_capa =
3991 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3992
f461be3e
MP		 3993 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3994 params.vht_capa =
3995 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3996
f8bacc21 3997 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 3998 params.plink_action =
f8bacc21
JB		 3999 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4000 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4001 return -EINVAL;
4002 }
96b78dff 4003
ff276691
JB		 4004 err = nl80211_parse_sta_wme(info, &params);
4005 if (err)
4006 return err;
bdd90d5e 4007
bdd3ae3d 4008 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4009 return -EINVAL;
4010
77ee7c89
JB		 4011 /* When you run into this, adjust the code below for the new flag */
4012 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4013
bdd90d5e
JB		 4014 switch (dev->ieee80211_ptr->iftype) {
4015 case NL80211_IFTYPE_AP:
4016 case NL80211_IFTYPE_AP_VLAN:
4017 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4018 /* ignore WME attributes if iface/sta is not capable */
4019 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4020 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4021 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4022
bdd90d5e
JB		 4023 /* TDLS peers cannot be added */
4024 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 4025 return -EINVAL;
bdd90d5e
JB		 4026 /* but don't bother the driver with it */
4027 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4028
d582cffb
JB		 4029 /* allow authenticated/associated only if driver handles it */
4030 if (!(rdev->wiphy.features &
4031 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4032 params.sta_flags_mask &
4033 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4034 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4035 return -EINVAL;
4036
bdd90d5e
JB		 4037 /* must be last in here for error handling */
4038 params.vlan = get_vlan(info, rdev);
4039 if (IS_ERR(params.vlan))
4040 return PTR_ERR(params.vlan);
4041 break;
4042 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4043 /* ignore uAPSD data */
4044 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4045
d582cffb
JB		 4046 /* associated is disallowed */
4047 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4048 return -EINVAL;
bdd90d5e
JB		 4049 /* TDLS peers cannot be added */
4050 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4051 return -EINVAL;
4052 break;
4053 case NL80211_IFTYPE_STATION:
984c311b
JB		 4054 /* ignore uAPSD data */
4055 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4056
77ee7c89
JB		 4057 /* these are disallowed */
4058 if (params.sta_flags_mask &
4059 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4060 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4061 return -EINVAL;
bdd90d5e
JB		 4062 /* Only TDLS peers can be added */
4063 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4064 return -EINVAL;
4065 /* Can only add if TDLS ... */
4066 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4067 return -EOPNOTSUPP;
4068 /* ... with external setup is supported */
4069 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4070 return -EOPNOTSUPP;
77ee7c89
JB		 4071 /*
4072 * Older wpa_supplicant versions always mark the TDLS peer
4073 * as authorized, but it shouldn't yet be.
4074 */
4075 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4076 break;
4077 default:
4078 return -EOPNOTSUPP;
c75786c9
EP		 4079 }
4080
bdd90d5e 4081 /* be aware of params.vlan when changing code here */
5727ef1b 4082
e35e4d28 4083 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4084
5727ef1b
JB		 4085 if (params.vlan)
4086 dev_put(params.vlan);
5727ef1b
JB		 4087 return err;
4088}
4089
4090static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4091{
4c476991
JB		 4092 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4093 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4094 u8 *mac_addr = NULL;
4095
4096 if (info->attrs[NL80211_ATTR_MAC])
4097 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4098
e80cf853 4099 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4100 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4101 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4102 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4103 return -EINVAL;
5727ef1b 4104
4c476991
JB		 4105 if (!rdev->ops->del_station)
4106 return -EOPNOTSUPP;
3b85875a 4107
e35e4d28 4108 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4109}
4110
15e47304 4111static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4112 int flags, struct net_device *dev,
4113 u8 *dst, u8 *next_hop,
4114 struct mpath_info *pinfo)
4115{
4116 void *hdr;
4117 struct nlattr *pinfoattr;
4118
15e47304 4119 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4120 if (!hdr)
4121 return -1;
4122
9360ffd1
DM		 4123 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4124 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4125 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4126 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4127 goto nla_put_failure;
f5ea9120 4128
2ec600d6
LCC		 4129 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4130 if (!pinfoattr)
4131 goto nla_put_failure;
9360ffd1
DM		 4132 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4133 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4134 pinfo->frame_qlen))
4135 goto nla_put_failure;
4136 if (((pinfo->filled & MPATH_INFO_SN) &&
4137 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4138 ((pinfo->filled & MPATH_INFO_METRIC) &&
4139 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4140 pinfo->metric)) ||
4141 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4142 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4143 pinfo->exptime)) ||
4144 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4145 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4146 pinfo->flags)) ||
4147 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4148 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4149 pinfo->discovery_timeout)) ||
4150 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4151 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4152 pinfo->discovery_retries)))
4153 goto nla_put_failure;
2ec600d6
LCC		 4154
4155 nla_nest_end(msg, pinfoattr);
4156
4157 return genlmsg_end(msg, hdr);
4158
4159 nla_put_failure:
bc3ed28c
TG		 4160 genlmsg_cancel(msg, hdr);
4161 return -EMSGSIZE;
2ec600d6
LCC		 4162}
4163
4164static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4165 struct netlink_callback *cb)
2ec600d6 4166{
2ec600d6
LCC		 4167 struct mpath_info pinfo;
4168 struct cfg80211_registered_device *dev;
bba95fef 4169 struct net_device *netdev;
2ec600d6
LCC		 4170 u8 dst[ETH_ALEN];
4171 u8 next_hop[ETH_ALEN];
bba95fef 4172 int path_idx = cb->args[1];
2ec600d6 4173 int err;
2ec600d6 4174
67748893
JB		 4175 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4176 if (err)
4177 return err;
bba95fef
JB		 4178
4179 if (!dev->ops->dump_mpath) {
eec60b03 4180 err = -EOPNOTSUPP;
bba95fef
JB		 4181 goto out_err;
4182 }
4183
eec60b03
JM		 4184 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
4185 err = -EOPNOTSUPP;
0448b5fc 4186 goto out_err;
eec60b03
JM		 4187 }
4188
bba95fef 4189 while (1) {
e35e4d28
HG		 4190 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
4191 &pinfo);
bba95fef 4192 if (err == -ENOENT)
2ec600d6 4193 break;
bba95fef 4194 if (err)
3b85875a 4195 goto out_err;
2ec600d6 4196
15e47304 4197 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 4198 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4199 netdev, dst, next_hop,
4200 &pinfo) < 0)
4201 goto out;
2ec600d6 4202
bba95fef 4203 path_idx++;
2ec600d6 4204 }
2ec600d6 4205
2ec600d6 4206
bba95fef
JB		 4207 out:
4208 cb->args[1] = path_idx;
4209 err = skb->len;
bba95fef 4210 out_err:
67748893 4211 nl80211_finish_netdev_dump(dev);
bba95fef 4212 return err;
2ec600d6
LCC		 4213}
4214
4215static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4216{
4c476991 4217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4218 int err;
4c476991 4219 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4220 struct mpath_info pinfo;
4221 struct sk_buff *msg;
4222 u8 *dst = NULL;
4223 u8 next_hop[ETH_ALEN];
4224
4225 memset(&pinfo, 0, sizeof(pinfo));
4226
4227 if (!info->attrs[NL80211_ATTR_MAC])
4228 return -EINVAL;
4229
4230 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4231
4c476991
JB		 4232 if (!rdev->ops->get_mpath)
4233 return -EOPNOTSUPP;
2ec600d6 4234
4c476991
JB		 4235 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4236 return -EOPNOTSUPP;
eec60b03 4237
e35e4d28 4238 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4239 if (err)
4c476991 4240 return err;
2ec600d6 4241
fd2120ca 4242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4243 if (!msg)
4c476991 4244 return -ENOMEM;
2ec600d6 4245
15e47304 4246 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4247 dev, dst, next_hop, &pinfo) < 0) {
4248 nlmsg_free(msg);
4249 return -ENOBUFS;
4250 }
3b85875a 4251
4c476991 4252 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4253}
4254
4255static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4256{
4c476991
JB		 4257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4258 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4259 u8 *dst = NULL;
4260 u8 *next_hop = NULL;
4261
4262 if (!info->attrs[NL80211_ATTR_MAC])
4263 return -EINVAL;
4264
4265 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4266 return -EINVAL;
4267
4268 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4269 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4270
4c476991
JB		 4271 if (!rdev->ops->change_mpath)
4272 return -EOPNOTSUPP;
35a8efe1 4273
4c476991
JB		 4274 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4275 return -EOPNOTSUPP;
2ec600d6 4276
e35e4d28 4277 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4278}
4c476991 4279
2ec600d6
LCC		 4280static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4281{
4c476991
JB		 4282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4283 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4284 u8 *dst = NULL;
4285 u8 *next_hop = NULL;
4286
4287 if (!info->attrs[NL80211_ATTR_MAC])
4288 return -EINVAL;
4289
4290 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4291 return -EINVAL;
4292
4293 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4294 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4295
4c476991
JB		 4296 if (!rdev->ops->add_mpath)
4297 return -EOPNOTSUPP;
35a8efe1 4298
4c476991
JB		 4299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4300 return -EOPNOTSUPP;
2ec600d6 4301
e35e4d28 4302 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4303}
4304
4305static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4306{
4c476991
JB		 4307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4308 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4309 u8 *dst = NULL;
4310
4311 if (info->attrs[NL80211_ATTR_MAC])
4312 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4313
4c476991
JB		 4314 if (!rdev->ops->del_mpath)
4315 return -EOPNOTSUPP;
3b85875a 4316
e35e4d28 4317 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4318}
4319
9f1ba906
JM		 4320static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4321{
4c476991
JB		 4322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4323 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4324 struct bss_parameters params;
4325
4326 memset(&params, 0, sizeof(params));
4327 /* default to not changing parameters */
4328 params.use_cts_prot = -1;
4329 params.use_short_preamble = -1;
4330 params.use_short_slot_time = -1;
fd8aaaf3 4331 params.ap_isolate = -1;
50b12f59 4332 params.ht_opmode = -1;
53cabad7
JB		 4333 params.p2p_ctwindow = -1;
4334 params.p2p_opp_ps = -1;
9f1ba906
JM		 4335
4336 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4337 params.use_cts_prot =
4338 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4339 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4340 params.use_short_preamble =
4341 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4342 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4343 params.use_short_slot_time =
4344 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4345 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4346 params.basic_rates =
4347 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4348 params.basic_rates_len =
4349 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4350 }
fd8aaaf3
FF		 4351 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4352 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4353 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4354 params.ht_opmode =
4355 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4356
53cabad7
JB		 4357 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4358 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4359 return -EINVAL;
4360 params.p2p_ctwindow =
4361 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4362 if (params.p2p_ctwindow < 0)
4363 return -EINVAL;
4364 if (params.p2p_ctwindow != 0 &&
4365 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4366 return -EINVAL;
4367 }
4368
4369 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4370 u8 tmp;
4371
4372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4373 return -EINVAL;
4374 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4375 if (tmp > 1)
4376 return -EINVAL;
4377 params.p2p_opp_ps = tmp;
4378 if (params.p2p_opp_ps &&
4379 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4380 return -EINVAL;
4381 }
4382
4c476991
JB		 4383 if (!rdev->ops->change_bss)
4384 return -EOPNOTSUPP;
9f1ba906 4385
074ac8df 4386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4388 return -EOPNOTSUPP;
3b85875a 4389
e35e4d28 4390 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4391}
4392
b54452b0 4393static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4394 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4395 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4396 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4397 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4398 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4399 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4400};
4401
4402static int parse_reg_rule(struct nlattr *tb[],
4403 struct ieee80211_reg_rule *reg_rule)
4404{
4405 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4406 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4407
4408 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4409 return -EINVAL;
4410 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4411 return -EINVAL;
4412 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4413 return -EINVAL;
4414 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4415 return -EINVAL;
4416 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4417 return -EINVAL;
4418
4419 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4420
4421 freq_range->start_freq_khz =
4422 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4423 freq_range->end_freq_khz =
4424 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4425 freq_range->max_bandwidth_khz =
4426 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4427
4428 power_rule->max_eirp =
4429 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4430
4431 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4432 power_rule->max_antenna_gain =
4433 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4434
4435 return 0;
4436}
4437
4438static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4439{
4440 int r;
4441 char *data = NULL;
57b5ce07 4442 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4443
80778f18
LR		 4444 /*
4445 * You should only get this when cfg80211 hasn't yet initialized
4446 * completely when built-in to the kernel right between the time
4447 * window between nl80211_init() and regulatory_init(), if that is
4448 * even possible.
4449 */
458f4f9e 4450 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4451 return -EINPROGRESS;
80778f18 4452
fe33eb39
LR		 4453 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4454 return -EINVAL;
b2e1b302
LR		 4455
4456 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4457
57b5ce07
LR		 4458 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4459 user_reg_hint_type =
4460 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4461 else
4462 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4463
4464 switch (user_reg_hint_type) {
4465 case NL80211_USER_REG_HINT_USER:
4466 case NL80211_USER_REG_HINT_CELL_BASE:
4467 break;
4468 default:
4469 return -EINVAL;
4470 }
4471
4472 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4473
b2e1b302
LR		 4474 return r;
4475}
4476
24bdd9f4 4477static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4478 struct genl_info *info)
93da9cc1 4479{
4c476991 4480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4481 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4482 struct wireless_dev *wdev = dev->ieee80211_ptr;
4483 struct mesh_config cur_params;
4484 int err = 0;
93da9cc1 4485 void *hdr;
4486 struct nlattr *pinfoattr;
4487 struct sk_buff *msg;
4488
29cbe68c
JB		 4489 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4490 return -EOPNOTSUPP;
4491
24bdd9f4 4492 if (!rdev->ops->get_mesh_config)
4c476991 4493 return -EOPNOTSUPP;
f3f92586 4494
29cbe68c
JB		 4495 wdev_lock(wdev);
4496 /* If not connected, get default parameters */
4497 if (!wdev->mesh_id_len)
4498 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4499 else
e35e4d28 4500 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4501 wdev_unlock(wdev);
4502
93da9cc1 4503 if (err)
4c476991 4504 return err;
93da9cc1 4505
4506 /* Draw up a netlink message to send back */
fd2120ca 4507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4508 if (!msg)
4509 return -ENOMEM;
15e47304 4510 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4511 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4512 if (!hdr)
efe1cf0c 4513 goto out;
24bdd9f4 4514 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4515 if (!pinfoattr)
4516 goto nla_put_failure;
9360ffd1
DM		 4517 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4518 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4519 cur_params.dot11MeshRetryTimeout) ||
4520 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4521 cur_params.dot11MeshConfirmTimeout) ||
4522 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4523 cur_params.dot11MeshHoldingTimeout) ||
4524 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4525 cur_params.dot11MeshMaxPeerLinks) ||
4526 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4527 cur_params.dot11MeshMaxRetries) ||
4528 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4529 cur_params.dot11MeshTTL) ||
4530 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4531 cur_params.element_ttl) ||
4532 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4533 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4534 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4535 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4536 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4537 cur_params.dot11MeshHWMPmaxPREQretries) ||
4538 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4539 cur_params.path_refresh_time) ||
4540 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4541 cur_params.min_discovery_timeout) ||
4542 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4543 cur_params.dot11MeshHWMPactivePathTimeout) ||
4544 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4545 cur_params.dot11MeshHWMPpreqMinInterval) ||
4546 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4547 cur_params.dot11MeshHWMPperrMinInterval) ||
4548 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4549 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4550 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4551 cur_params.dot11MeshHWMPRootMode) ||
4552 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4553 cur_params.dot11MeshHWMPRannInterval) ||
4554 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4555 cur_params.dot11MeshGateAnnouncementProtocol) ||
4556 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4557 cur_params.dot11MeshForwarding) ||
4558 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4559 cur_params.rssi_threshold) ||
4560 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4561 cur_params.ht_opmode) ||
4562 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4563 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4564 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4565 cur_params.dot11MeshHWMProotInterval) ||
4566 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4567 cur_params.dot11MeshHWMPconfirmationInterval) ||
4568 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4569 cur_params.power_mode) ||
4570 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4571 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4572 goto nla_put_failure;
93da9cc1 4573 nla_nest_end(msg, pinfoattr);
4574 genlmsg_end(msg, hdr);
4c476991 4575 return genlmsg_reply(msg, info);
93da9cc1 4576
3b85875a 4577 nla_put_failure:
93da9cc1 4578 genlmsg_cancel(msg, hdr);
efe1cf0c 4579 out:
d080e275 4580 nlmsg_free(msg);
4c476991 4581 return -ENOBUFS;
93da9cc1 4582}
4583
b54452b0 4584static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4585 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4586 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4587 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4588 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4589 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4590 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4591 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4592 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4593 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4594 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4595 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4596 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4597 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4598 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4599 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4600 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4601 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4602 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4603 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4604 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4605 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4606 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4607 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4608 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4609 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4610 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4611 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4612};
4613
c80d545d
JC		 4614static const struct nla_policy
4615 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4616 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4617 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4618 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4619 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 4620 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4621 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4622 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4623};
4624
24bdd9f4 4625static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4626 struct mesh_config *cfg,
4627 u32 *mask_out)
93da9cc1 4628{
93da9cc1 4629 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4630 u32 mask = 0;
93da9cc1 4631
ea54fba2
MP		 4632#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4633do { \
4634 if (tb[attr]) { \
4635 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4636 return -EINVAL; \
4637 cfg->param = fn(tb[attr]); \
4638 mask |= (1 << (attr - 1)); \
4639 } \
4640} while (0)
bd90fdcc
JB		 4641
4642
24bdd9f4 4643 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4644 return -EINVAL;
4645 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4646 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4647 nl80211_meshconf_params_policy))
93da9cc1 4648 return -EINVAL;
4649
93da9cc1 4650 /* This makes sure that there aren't more than 32 mesh config
4651 * parameters (otherwise our bitfield scheme would not work.) */
4652 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4653
4654 /* Fill in the params struct */
ea54fba2 4655 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4656 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4657 nla_get_u16);
ea54fba2 4658 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4659 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4660 nla_get_u16);
ea54fba2 4661 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4662 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4663 nla_get_u16);
ea54fba2 4664 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4665 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4666 nla_get_u16);
ea54fba2 4667 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4668 mask, NL80211_MESHCONF_MAX_RETRIES,
4669 nla_get_u8);
ea54fba2 4670 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4671 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4672 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4673 mask, NL80211_MESHCONF_ELEMENT_TTL,
4674 nla_get_u8);
ea54fba2 4675 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4676 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4677 nla_get_u8);
ea54fba2
MP		 4678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4679 1, 255, mask,
a4f606ea
CYY		 4680 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4681 nla_get_u32);
ea54fba2 4682 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4683 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4684 nla_get_u8);
ea54fba2 4685 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4686 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4687 nla_get_u32);
ea54fba2 4688 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4689 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4690 nla_get_u16);
ea54fba2
MP		 4691 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4692 1, 65535, mask,
a4f606ea
CYY		 4693 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4694 nla_get_u32);
93da9cc1 4695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4696 1, 65535, mask,
4697 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4698 nla_get_u16);
dca7e943 4699 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4700 1, 65535, mask,
4701 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4702 nla_get_u16);
93da9cc1 4703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4704 dot11MeshHWMPnetDiameterTraversalTime,
4705 1, 65535, mask,
a4f606ea
CYY		 4706 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4707 nla_get_u16);
ea54fba2
MP		 4708 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4709 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4710 nla_get_u8);
4711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4712 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4713 nla_get_u16);
63c5723b 4714 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4715 dot11MeshGateAnnouncementProtocol, 0, 1,
4716 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4717 nla_get_u8);
ea54fba2 4718 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4719 mask, NL80211_MESHCONF_FORWARDING,
4720 nla_get_u8);
ea54fba2 4721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4722 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4723 nla_get_u32);
ea54fba2 4724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4725 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4726 nla_get_u16);
4727 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4728 1, 65535, mask,
ac1073a6
CYY		 4729 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4730 nla_get_u32);
ea54fba2 4731 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4732 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4733 nla_get_u16);
4734 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4735 dot11MeshHWMPconfirmationInterval,
4736 1, 65535, mask,
728b19e5 4737 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4738 nla_get_u16);
3b1c5a53
MP		 4739 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4740 NL80211_MESH_POWER_ACTIVE,
4741 NL80211_MESH_POWER_MAX,
4742 mask, NL80211_MESHCONF_POWER_MODE,
4743 nla_get_u32);
4744 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4745 0, 65535, mask,
4746 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4747 if (mask_out)
4748 *mask_out = mask;
c80d545d 4749
bd90fdcc
JB		 4750 return 0;
4751
4752#undef FILL_IN_MESH_PARAM_IF_SET
4753}
4754
c80d545d
JC		 4755static int nl80211_parse_mesh_setup(struct genl_info *info,
4756 struct mesh_setup *setup)
4757{
4758 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4759
4760 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4761 return -EINVAL;
4762 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4763 info->attrs[NL80211_ATTR_MESH_SETUP],
4764 nl80211_mesh_setup_params_policy))
4765 return -EINVAL;
4766
d299a1f2
JC		 4767 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4768 setup->sync_method =
4769 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4770 IEEE80211_SYNC_METHOD_VENDOR :
4771 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4772
c80d545d
JC		 4773 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4774 setup->path_sel_proto =
4775 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4776 IEEE80211_PATH_PROTOCOL_VENDOR :
4777 IEEE80211_PATH_PROTOCOL_HWMP;
4778
4779 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4780 setup->path_metric =
4781 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4782 IEEE80211_PATH_METRIC_VENDOR :
4783 IEEE80211_PATH_METRIC_AIRTIME;
4784
581a8b0f
JC		 4785
4786 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4787 struct nlattr *ieattr =
581a8b0f 4788 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4789 if (!is_valid_ie_attr(ieattr))
4790 return -EINVAL;
581a8b0f
JC		 4791 setup->ie = nla_data(ieattr);
4792 setup->ie_len = nla_len(ieattr);
c80d545d 4793 }
b130e5ce
JC		 4794 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4795 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4796
4797 return 0;
4798}
4799
24bdd9f4 4800static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4801 struct genl_info *info)
bd90fdcc
JB		 4802{
4803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4804 struct net_device *dev = info->user_ptr[1];
29cbe68c 4805 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4806 struct mesh_config cfg;
4807 u32 mask;
4808 int err;
4809
29cbe68c
JB		 4810 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4811 return -EOPNOTSUPP;
4812
24bdd9f4 4813 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4814 return -EOPNOTSUPP;
4815
24bdd9f4 4816 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4817 if (err)
4818 return err;
4819
29cbe68c
JB		 4820 wdev_lock(wdev);
4821 if (!wdev->mesh_id_len)
4822 err = -ENOLINK;
4823
4824 if (!err)
e35e4d28 4825 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4826
4827 wdev_unlock(wdev);
4828
4829 return err;
93da9cc1 4830}
4831
f130347c
LR		 4832static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4833{
458f4f9e 4834 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4835 struct sk_buff *msg;
4836 void *hdr = NULL;
4837 struct nlattr *nl_reg_rules;
4838 unsigned int i;
4839 int err = -EINVAL;
4840
a1794390 4841 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4842
4843 if (!cfg80211_regdomain)
4844 goto out;
4845
fd2120ca 4846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4847 if (!msg) {
4848 err = -ENOBUFS;
4849 goto out;
4850 }
4851
15e47304 4852 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4853 NL80211_CMD_GET_REG);
4854 if (!hdr)
efe1cf0c 4855 goto put_failure;
f130347c 4856
57b5ce07
LR		 4857 if (reg_last_request_cell_base() &&
4858 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4859 NL80211_USER_REG_HINT_CELL_BASE))
4860 goto nla_put_failure;
4861
458f4f9e
JB		 4862 rcu_read_lock();
4863 regdom = rcu_dereference(cfg80211_regdomain);
4864
4865 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4866 (regdom->dfs_region &&
4867 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4868 goto nla_put_failure_rcu;
4869
f130347c
LR		 4870 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4871 if (!nl_reg_rules)
458f4f9e 4872 goto nla_put_failure_rcu;
f130347c 4873
458f4f9e 4874 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4875 struct nlattr *nl_reg_rule;
4876 const struct ieee80211_reg_rule *reg_rule;
4877 const struct ieee80211_freq_range *freq_range;
4878 const struct ieee80211_power_rule *power_rule;
4879
458f4f9e 4880 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4881 freq_range = &reg_rule->freq_range;
4882 power_rule = &reg_rule->power_rule;
4883
4884 nl_reg_rule = nla_nest_start(msg, i);
4885 if (!nl_reg_rule)
458f4f9e 4886 goto nla_put_failure_rcu;
f130347c 4887
9360ffd1
DM		 4888 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4889 reg_rule->flags) ||
4890 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4891 freq_range->start_freq_khz) ||
4892 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4893 freq_range->end_freq_khz) ||
4894 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4895 freq_range->max_bandwidth_khz) ||
4896 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4897 power_rule->max_antenna_gain) ||
4898 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4899 power_rule->max_eirp))
458f4f9e 4900 goto nla_put_failure_rcu;
f130347c
LR		 4901
4902 nla_nest_end(msg, nl_reg_rule);
4903 }
458f4f9e 4904 rcu_read_unlock();
f130347c
LR		 4905
4906 nla_nest_end(msg, nl_reg_rules);
4907
4908 genlmsg_end(msg, hdr);
134e6375 4909 err = genlmsg_reply(msg, info);
f130347c
LR		 4910 goto out;
4911
458f4f9e
JB		 4912nla_put_failure_rcu:
4913 rcu_read_unlock();
f130347c
LR		 4914nla_put_failure:
4915 genlmsg_cancel(msg, hdr);
efe1cf0c 4916put_failure:
d080e275 4917 nlmsg_free(msg);
f130347c
LR		 4918 err = -EMSGSIZE;
4919out:
a1794390 4920 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4921 return err;
4922}
4923
b2e1b302
LR		 4924static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4925{
4926 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4927 struct nlattr *nl_reg_rule;
4928 char *alpha2 = NULL;
4929 int rem_reg_rules = 0, r = 0;
4930 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4931 u8 dfs_region = 0;
b2e1b302
LR		 4932 struct ieee80211_regdomain *rd = NULL;
4933
4934 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4935 return -EINVAL;
4936
4937 if (!info->attrs[NL80211_ATTR_REG_RULES])
4938 return -EINVAL;
4939
4940 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4941
8b60b078
LR		 4942 if (info->attrs[NL80211_ATTR_DFS_REGION])
4943 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4944
b2e1b302 4945 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4946 rem_reg_rules) {
b2e1b302
LR		 4947 num_rules++;
4948 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4949 return -EINVAL;
b2e1b302
LR		 4950 }
4951
b2e1b302 4952 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4953 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4954
4955 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4956 if (!rd)
4957 return -ENOMEM;
b2e1b302
LR		 4958
4959 rd->n_reg_rules = num_rules;
4960 rd->alpha2[0] = alpha2[0];
4961 rd->alpha2[1] = alpha2[1];
4962
8b60b078
LR		 4963 /*
4964 * Disable DFS master mode if the DFS region was
4965 * not supported or known on this kernel.
4966 */
4967 if (reg_supported_dfs_region(dfs_region))
4968 rd->dfs_region = dfs_region;
4969
b2e1b302 4970 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4971 rem_reg_rules) {
b2e1b302 4972 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4973 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4974 reg_rule_policy);
b2e1b302
LR		 4975 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4976 if (r)
4977 goto bad_reg;
4978
4979 rule_idx++;
4980
d0e18f83
LR		 4981 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4982 r = -EINVAL;
b2e1b302 4983 goto bad_reg;
d0e18f83 4984 }
b2e1b302
LR		 4985 }
4986
6913b49a
JB		 4987 mutex_lock(&cfg80211_mutex);
4988
b2e1b302 4989 r = set_regdom(rd);
6913b49a 4990 /* set_regdom took ownership */
1a919318 4991 rd = NULL;
6913b49a 4992 mutex_unlock(&cfg80211_mutex);
b2e1b302 4993
d2372b31 4994 bad_reg:
b2e1b302 4995 kfree(rd);
d0e18f83 4996 return r;
b2e1b302
LR		 4997}
4998
83f5e2cf
JB		 4999static int validate_scan_freqs(struct nlattr *freqs)
5000{
5001 struct nlattr *attr1, *attr2;
5002 int n_channels = 0, tmp1, tmp2;
5003
5004 nla_for_each_nested(attr1, freqs, tmp1) {
5005 n_channels++;
5006 /*
5007 * Some hardware has a limited channel list for
5008 * scanning, and it is pretty much nonsensical
5009 * to scan for a channel twice, so disallow that
5010 * and don't require drivers to check that the
5011 * channel list they get isn't longer than what
5012 * they can scan, as long as they can scan all
5013 * the channels they registered at once.
5014 */
5015 nla_for_each_nested(attr2, freqs, tmp2)
5016 if (attr1 != attr2 &&
5017 nla_get_u32(attr1) == nla_get_u32(attr2))
5018 return 0;
5019 }
5020
5021 return n_channels;
5022}
5023
2a519311
JB		 5024static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5025{
4c476991 5026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5027 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5028 struct cfg80211_scan_request *request;
2a519311
JB		 5029 struct nlattr *attr;
5030 struct wiphy *wiphy;
83f5e2cf 5031 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5032 size_t ie_len;
2a519311 5033
f4a11bb0
JB		 5034 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5035 return -EINVAL;
5036
79c97e97 5037 wiphy = &rdev->wiphy;
2a519311 5038
4c476991
JB		 5039 if (!rdev->ops->scan)
5040 return -EOPNOTSUPP;
2a519311 5041
4c476991
JB		 5042 if (rdev->scan_req)
5043 return -EBUSY;
2a519311
JB		 5044
5045 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5046 n_channels = validate_scan_freqs(
5047 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 5048 if (!n_channels)
5049 return -EINVAL;
2a519311 5050 } else {
34850ab2 5051 enum ieee80211_band band;
83f5e2cf
JB		 5052 n_channels = 0;
5053
2a519311
JB		 5054 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5055 if (wiphy->bands[band])
5056 n_channels += wiphy->bands[band]->n_channels;
5057 }
5058
5059 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5060 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5061 n_ssids++;
5062
4c476991
JB		 5063 if (n_ssids > wiphy->max_scan_ssids)
5064 return -EINVAL;
2a519311 5065
70692ad2
JM		 5066 if (info->attrs[NL80211_ATTR_IE])
5067 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5068 else
5069 ie_len = 0;
5070
4c476991
JB		 5071 if (ie_len > wiphy->max_scan_ie_len)
5072 return -EINVAL;
18a83659 5073
2a519311 5074 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5075 + sizeof(*request->ssids) * n_ssids
5076 + sizeof(*request->channels) * n_channels
70692ad2 5077 + ie_len, GFP_KERNEL);
4c476991
JB		 5078 if (!request)
5079 return -ENOMEM;
2a519311 5080
2a519311 5081 if (n_ssids)
5ba63533 5082 request->ssids = (void *)&request->channels[n_channels];
2a519311 5083 request->n_ssids = n_ssids;
70692ad2
JM		 5084 if (ie_len) {
5085 if (request->ssids)
5086 request->ie = (void *)(request->ssids + n_ssids);
5087 else
5088 request->ie = (void *)(request->channels + n_channels);
5089 }
2a519311 5090
584991dc 5091 i = 0;
2a519311
JB		 5092 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5093 /* user specified, bail out if channel not found */
2a519311 5094 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5095 struct ieee80211_channel *chan;
5096
5097 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5098
5099 if (!chan) {
2a519311
JB		 5100 err = -EINVAL;
5101 goto out_free;
5102 }
584991dc
JB		 5103
5104 /* ignore disabled channels */
5105 if (chan->flags & IEEE80211_CHAN_DISABLED)
5106 continue;
5107
5108 request->channels[i] = chan;
2a519311
JB		 5109 i++;
5110 }
5111 } else {
34850ab2
JB		 5112 enum ieee80211_band band;
5113
2a519311 5114 /* all channels */
2a519311
JB		 5115 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5116 int j;
5117 if (!wiphy->bands[band])
5118 continue;
5119 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5120 struct ieee80211_channel *chan;
5121
5122 chan = &wiphy->bands[band]->channels[j];
5123
5124 if (chan->flags & IEEE80211_CHAN_DISABLED)
5125 continue;
5126
5127 request->channels[i] = chan;
2a519311
JB		 5128 i++;
5129 }
5130 }
5131 }
5132
584991dc
JB		 5133 if (!i) {
5134 err = -EINVAL;
5135 goto out_free;
5136 }
5137
5138 request->n_channels = i;
5139
2a519311
JB		 5140 i = 0;
5141 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5142 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5143 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5144 err = -EINVAL;
5145 goto out_free;
5146 }
57a27e1d 5147 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5148 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5149 i++;
5150 }
5151 }
5152
70692ad2
JM		 5153 if (info->attrs[NL80211_ATTR_IE]) {
5154 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5155 memcpy((void *)request->ie,
5156 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5157 request->ie_len);
5158 }
5159
34850ab2 5160 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5161 if (wiphy->bands[i])
5162 request->rates[i] =
5163 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5164
5165 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5166 nla_for_each_nested(attr,
5167 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5168 tmp) {
5169 enum ieee80211_band band = nla_type(attr);
5170
84404623 5171 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5172 err = -EINVAL;
5173 goto out_free;
5174 }
5175 err = ieee80211_get_ratemask(wiphy->bands[band],
5176 nla_data(attr),
5177 nla_len(attr),
5178 &request->rates[band]);
5179 if (err)
5180 goto out_free;
5181 }
5182 }
5183
46856bbf 5184 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5185 request->flags = nla_get_u32(
5186 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5187 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5188 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5189 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5190 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5191 err = -EOPNOTSUPP;
5192 goto out_free;
5193 }
5194 }
ed473771 5195
e9f935e3
RM		 5196 request->no_cck =
5197 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5198
fd014284 5199 request->wdev = wdev;
79c97e97 5200 request->wiphy = &rdev->wiphy;
15d6030b 5201 request->scan_start = jiffies;
2a519311 5202
79c97e97 5203 rdev->scan_req = request;
e35e4d28 5204 err = rdev_scan(rdev, request);
2a519311 5205
463d0183 5206 if (!err) {
fd014284
JB		 5207 nl80211_send_scan_start(rdev, wdev);
5208 if (wdev->netdev)
5209 dev_hold(wdev->netdev);
4c476991 5210 } else {
2a519311 5211 out_free:
79c97e97 5212 rdev->scan_req = NULL;
2a519311
JB		 5213 kfree(request);
5214 }
3b85875a 5215
2a519311
JB		 5216 return err;
5217}
5218
807f8a8c
LC		 5219static int nl80211_start_sched_scan(struct sk_buff *skb,
5220 struct genl_info *info)
5221{
5222 struct cfg80211_sched_scan_request *request;
5223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5224 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5225 struct nlattr *attr;
5226 struct wiphy *wiphy;
a1f1c21c 5227 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5228 u32 interval;
807f8a8c
LC		 5229 enum ieee80211_band band;
5230 size_t ie_len;
a1f1c21c 5231 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5232
5233 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5234 !rdev->ops->sched_scan_start)
5235 return -EOPNOTSUPP;
5236
5237 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5238 return -EINVAL;
5239
bbe6ad6d
LC		 5240 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5241 return -EINVAL;
5242
5243 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5244 if (interval == 0)
5245 return -EINVAL;
5246
807f8a8c
LC		 5247 wiphy = &rdev->wiphy;
5248
5249 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5250 n_channels = validate_scan_freqs(
5251 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5252 if (!n_channels)
5253 return -EINVAL;
5254 } else {
5255 n_channels = 0;
5256
5257 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5258 if (wiphy->bands[band])
5259 n_channels += wiphy->bands[band]->n_channels;
5260 }
5261
5262 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5263 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5264 tmp)
5265 n_ssids++;
5266
93b6aa69 5267 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5268 return -EINVAL;
5269
a1f1c21c
LC		 5270 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5271 nla_for_each_nested(attr,
5272 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5273 tmp)
5274 n_match_sets++;
5275
5276 if (n_match_sets > wiphy->max_match_sets)
5277 return -EINVAL;
5278
807f8a8c
LC		 5279 if (info->attrs[NL80211_ATTR_IE])
5280 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5281 else
5282 ie_len = 0;
5283
5a865bad 5284 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5285 return -EINVAL;
5286
c10841ca
LC		 5287 mutex_lock(&rdev->sched_scan_mtx);
5288
5289 if (rdev->sched_scan_req) {
5290 err = -EINPROGRESS;
5291 goto out;
5292 }
5293
807f8a8c 5294 request = kzalloc(sizeof(*request)
a2cd43c5 5295 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5296 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5297 + sizeof(*request->channels) * n_channels
807f8a8c 5298 + ie_len, GFP_KERNEL);
c10841ca
LC		 5299 if (!request) {
5300 err = -ENOMEM;
5301 goto out;
5302 }
807f8a8c
LC		 5303
5304 if (n_ssids)
5305 request->ssids = (void *)&request->channels[n_channels];
5306 request->n_ssids = n_ssids;
5307 if (ie_len) {
5308 if (request->ssids)
5309 request->ie = (void *)(request->ssids + n_ssids);
5310 else
5311 request->ie = (void *)(request->channels + n_channels);
5312 }
5313
a1f1c21c
LC		 5314 if (n_match_sets) {
5315 if (request->ie)
5316 request->match_sets = (void *)(request->ie + ie_len);
5317 else if (request->ssids)
5318 request->match_sets =
5319 (void *)(request->ssids + n_ssids);
5320 else
5321 request->match_sets =
5322 (void *)(request->channels + n_channels);
5323 }
5324 request->n_match_sets = n_match_sets;
5325
807f8a8c
LC		 5326 i = 0;
5327 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5328 /* user specified, bail out if channel not found */
5329 nla_for_each_nested(attr,
5330 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5331 tmp) {
5332 struct ieee80211_channel *chan;
5333
5334 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5335
5336 if (!chan) {
5337 err = -EINVAL;
5338 goto out_free;
5339 }
5340
5341 /* ignore disabled channels */
5342 if (chan->flags & IEEE80211_CHAN_DISABLED)
5343 continue;
5344
5345 request->channels[i] = chan;
5346 i++;
5347 }
5348 } else {
5349 /* all channels */
5350 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5351 int j;
5352 if (!wiphy->bands[band])
5353 continue;
5354 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5355 struct ieee80211_channel *chan;
5356
5357 chan = &wiphy->bands[band]->channels[j];
5358
5359 if (chan->flags & IEEE80211_CHAN_DISABLED)
5360 continue;
5361
5362 request->channels[i] = chan;
5363 i++;
5364 }
5365 }
5366 }
5367
5368 if (!i) {
5369 err = -EINVAL;
5370 goto out_free;
5371 }
5372
5373 request->n_channels = i;
5374
5375 i = 0;
5376 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5377 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5378 tmp) {
57a27e1d 5379 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5380 err = -EINVAL;
5381 goto out_free;
5382 }
57a27e1d 5383 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5384 memcpy(request->ssids[i].ssid, nla_data(attr),
5385 nla_len(attr));
807f8a8c
LC		 5386 i++;
5387 }
5388 }
5389
a1f1c21c
LC		 5390 i = 0;
5391 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5392 nla_for_each_nested(attr,
5393 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5394 tmp) {
88e920b4 5395 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5396
5397 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5398 nla_data(attr), nla_len(attr),
5399 nl80211_match_policy);
4a4ab0d7 5400 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5401 if (ssid) {
5402 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5403 err = -EINVAL;
5404 goto out_free;
5405 }
5406 memcpy(request->match_sets[i].ssid.ssid,
5407 nla_data(ssid), nla_len(ssid));
5408 request->match_sets[i].ssid.ssid_len =
5409 nla_len(ssid);
5410 }
88e920b4
TP		 5411 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5412 if (rssi)
5413 request->rssi_thold = nla_get_u32(rssi);
5414 else
5415 request->rssi_thold =
5416 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5417 i++;
5418 }
5419 }
5420
807f8a8c
LC		 5421 if (info->attrs[NL80211_ATTR_IE]) {
5422 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5423 memcpy((void *)request->ie,
5424 nla_data(info->attrs[NL80211_ATTR_IE]),
5425 request->ie_len);
5426 }
5427
46856bbf 5428 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5429 request->flags = nla_get_u32(
5430 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5431 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5432 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5433 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5434 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5435 err = -EOPNOTSUPP;
5436 goto out_free;
5437 }
5438 }
ed473771 5439
807f8a8c
LC		 5440 request->dev = dev;
5441 request->wiphy = &rdev->wiphy;
bbe6ad6d 5442 request->interval = interval;
15d6030b 5443 request->scan_start = jiffies;
807f8a8c 5444
e35e4d28 5445 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5446 if (!err) {
5447 rdev->sched_scan_req = request;
5448 nl80211_send_sched_scan(rdev, dev,
5449 NL80211_CMD_START_SCHED_SCAN);
5450 goto out;
5451 }
5452
5453out_free:
5454 kfree(request);
5455out:
c10841ca 5456 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 5457 return err;
5458}
5459
5460static int nl80211_stop_sched_scan(struct sk_buff *skb,
5461 struct genl_info *info)
5462{
5463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 5464 int err;
807f8a8c
LC		 5465
5466 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5467 !rdev->ops->sched_scan_stop)
5468 return -EOPNOTSUPP;
5469
c10841ca
LC		 5470 mutex_lock(&rdev->sched_scan_mtx);
5471 err = __cfg80211_stop_sched_scan(rdev, false);
5472 mutex_unlock(&rdev->sched_scan_mtx);
5473
5474 return err;
807f8a8c
LC		 5475}
5476
04f39047
SW		 5477static int nl80211_start_radar_detection(struct sk_buff *skb,
5478 struct genl_info *info)
5479{
5480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5481 struct net_device *dev = info->user_ptr[1];
5482 struct wireless_dev *wdev = dev->ieee80211_ptr;
5483 struct cfg80211_chan_def chandef;
5484 int err;
5485
5486 err = nl80211_parse_chandef(rdev, info, &chandef);
5487 if (err)
5488 return err;
5489
5490 if (wdev->cac_started)
5491 return -EBUSY;
5492
5493 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5494 if (err < 0)
5495 return err;
5496
5497 if (err == 0)
5498 return -EINVAL;
5499
5500 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5501 return -EINVAL;
5502
5503 if (!rdev->ops->start_radar_detection)
5504 return -EOPNOTSUPP;
5505
5506 mutex_lock(&rdev->devlist_mtx);
5507 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5508 chandef.chan, CHAN_MODE_SHARED,
5509 BIT(chandef.width));
5510 if (err)
5511 goto err_locked;
5512
5513 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5514 if (!err) {
5515 wdev->channel = chandef.chan;
5516 wdev->cac_started = true;
5517 wdev->cac_start_time = jiffies;
5518 }
5519err_locked:
5520 mutex_unlock(&rdev->devlist_mtx);
5521
5522 return err;
5523}
5524
9720bb3a
JB		 5525static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5526 u32 seq, int flags,
2a519311 5527 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5528 struct wireless_dev *wdev,
5529 struct cfg80211_internal_bss *intbss)
2a519311 5530{
48ab905d 5531 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5532 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5533 void *hdr;
5534 struct nlattr *bss;
8cef2c9d 5535 bool tsf = false;
48ab905d
JB		 5536
5537 ASSERT_WDEV_LOCK(wdev);
2a519311 5538
15e47304 5539 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5540 NL80211_CMD_NEW_SCAN_RESULTS);
5541 if (!hdr)
5542 return -1;
5543
9720bb3a
JB		 5544 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5545
9360ffd1
DM		 5546 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5547 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5548 goto nla_put_failure;
2a519311
JB		 5549
5550 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5551 if (!bss)
5552 goto nla_put_failure;
9360ffd1 5553 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5554 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5555 goto nla_put_failure;
9caf0364
JB		 5556
5557 rcu_read_lock();
5558 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5559 if (ies) {
5560 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5561 goto fail_unlock_rcu;
5562 tsf = true;
5563 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5564 ies->len, ies->data))
5565 goto fail_unlock_rcu;
9caf0364
JB		 5566 }
5567 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5568 if (ies) {
5569 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5570 goto fail_unlock_rcu;
5571 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5572 ies->len, ies->data))
5573 goto fail_unlock_rcu;
9caf0364
JB		 5574 }
5575 rcu_read_unlock();
5576
9360ffd1
DM		 5577 if (res->beacon_interval &&
5578 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5579 goto nla_put_failure;
5580 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5581 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5582 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5583 jiffies_to_msecs(jiffies - intbss->ts)))
5584 goto nla_put_failure;
2a519311 5585
77965c97 5586 switch (rdev->wiphy.signal_type) {
2a519311 5587 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5588 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5589 goto nla_put_failure;
2a519311
JB		 5590 break;
5591 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5592 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5593 goto nla_put_failure;
2a519311
JB		 5594 break;
5595 default:
5596 break;
5597 }
5598
48ab905d 5599 switch (wdev->iftype) {
074ac8df 5600 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5601 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5602 if (intbss == wdev->current_bss &&
5603 nla_put_u32(msg, NL80211_BSS_STATUS,
5604 NL80211_BSS_STATUS_ASSOCIATED))
5605 goto nla_put_failure;
48ab905d
JB		 5606 break;
5607 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5608 if (intbss == wdev->current_bss &&
5609 nla_put_u32(msg, NL80211_BSS_STATUS,
5610 NL80211_BSS_STATUS_IBSS_JOINED))
5611 goto nla_put_failure;
48ab905d
JB		 5612 break;
5613 default:
5614 break;
5615 }
5616
2a519311
JB		 5617 nla_nest_end(msg, bss);
5618
5619 return genlmsg_end(msg, hdr);
5620
8cef2c9d
JB		 5621 fail_unlock_rcu:
5622 rcu_read_unlock();
2a519311
JB		 5623 nla_put_failure:
5624 genlmsg_cancel(msg, hdr);
5625 return -EMSGSIZE;
5626}
5627
5628static int nl80211_dump_scan(struct sk_buff *skb,
5629 struct netlink_callback *cb)
5630{
48ab905d
JB		 5631 struct cfg80211_registered_device *rdev;
5632 struct net_device *dev;
2a519311 5633 struct cfg80211_internal_bss *scan;
48ab905d 5634 struct wireless_dev *wdev;
2a519311
JB		 5635 int start = cb->args[1], idx = 0;
5636 int err;
5637
67748893
JB		 5638 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5639 if (err)
5640 return err;
2a519311 5641
48ab905d 5642 wdev = dev->ieee80211_ptr;
2a519311 5643
48ab905d
JB		 5644 wdev_lock(wdev);
5645 spin_lock_bh(&rdev->bss_lock);
5646 cfg80211_bss_expire(rdev);
5647
9720bb3a
JB		 5648 cb->seq = rdev->bss_generation;
5649
48ab905d 5650 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5651 if (++idx <= start)
5652 continue;
9720bb3a 5653 if (nl80211_send_bss(skb, cb,
2a519311 5654 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5655 rdev, wdev, scan) < 0) {
2a519311 5656 idx--;
67748893 5657 break;
2a519311
JB		 5658 }
5659 }
5660
48ab905d
JB		 5661 spin_unlock_bh(&rdev->bss_lock);
5662 wdev_unlock(wdev);
2a519311
JB		 5663
5664 cb->args[1] = idx;
67748893 5665 nl80211_finish_netdev_dump(rdev);
2a519311 5666
67748893 5667 return skb->len;
2a519311
JB		 5668}
5669
15e47304 5670static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5671 int flags, struct net_device *dev,
5672 struct survey_info *survey)
5673{
5674 void *hdr;
5675 struct nlattr *infoattr;
5676
15e47304 5677 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5678 NL80211_CMD_NEW_SURVEY_RESULTS);
5679 if (!hdr)
5680 return -ENOMEM;
5681
9360ffd1
DM		 5682 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5683 goto nla_put_failure;
61fa713c
HS		 5684
5685 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5686 if (!infoattr)
5687 goto nla_put_failure;
5688
9360ffd1
DM		 5689 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5690 survey->channel->center_freq))
5691 goto nla_put_failure;
5692
5693 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5694 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5695 goto nla_put_failure;
5696 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5697 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5698 goto nla_put_failure;
5699 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5700 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5701 survey->channel_time))
5702 goto nla_put_failure;
5703 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5704 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5705 survey->channel_time_busy))
5706 goto nla_put_failure;
5707 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5708 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5709 survey->channel_time_ext_busy))
5710 goto nla_put_failure;
5711 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5712 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5713 survey->channel_time_rx))
5714 goto nla_put_failure;
5715 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5716 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5717 survey->channel_time_tx))
5718 goto nla_put_failure;
61fa713c
HS		 5719
5720 nla_nest_end(msg, infoattr);
5721
5722 return genlmsg_end(msg, hdr);
5723
5724 nla_put_failure:
5725 genlmsg_cancel(msg, hdr);
5726 return -EMSGSIZE;
5727}
5728
5729static int nl80211_dump_survey(struct sk_buff *skb,
5730 struct netlink_callback *cb)
5731{
5732 struct survey_info survey;
5733 struct cfg80211_registered_device *dev;
5734 struct net_device *netdev;
61fa713c
HS		 5735 int survey_idx = cb->args[1];
5736 int res;
5737
67748893
JB		 5738 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5739 if (res)
5740 return res;
61fa713c
HS		 5741
5742 if (!dev->ops->dump_survey) {
5743 res = -EOPNOTSUPP;
5744 goto out_err;
5745 }
5746
5747 while (1) {
180cdc79
LR		 5748 struct ieee80211_channel *chan;
5749
e35e4d28 5750 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5751 if (res == -ENOENT)
5752 break;
5753 if (res)
5754 goto out_err;
5755
180cdc79
LR		 5756 /* Survey without a channel doesn't make sense */
5757 if (!survey.channel) {
5758 res = -EINVAL;
5759 goto out;
5760 }
5761
5762 chan = ieee80211_get_channel(&dev->wiphy,
5763 survey.channel->center_freq);
5764 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5765 survey_idx++;
5766 continue;
5767 }
5768
61fa713c 5769 if (nl80211_send_survey(skb,
15e47304 5770 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5771 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5772 netdev,
5773 &survey) < 0)
5774 goto out;
5775 survey_idx++;
5776 }
5777
5778 out:
5779 cb->args[1] = survey_idx;
5780 res = skb->len;
5781 out_err:
67748893 5782 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5783 return res;
5784}
5785
b23aa676
SO		 5786static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5787{
5788 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5789 NL80211_WPA_VERSION_2));
5790}
5791
636a5d36
JM		 5792static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5793{
4c476991
JB		 5794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5795 struct net_device *dev = info->user_ptr[1];
19957bb3 5796 struct ieee80211_channel *chan;
e39e5b5e
JM		 5797 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5798 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5799 enum nl80211_auth_type auth_type;
fffd0934 5800 struct key_parse key;
d5cdfacb 5801 bool local_state_change;
636a5d36 5802
f4a11bb0
JB		 5803 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5804 return -EINVAL;
5805
5806 if (!info->attrs[NL80211_ATTR_MAC])
5807 return -EINVAL;
5808
1778092e
JM		 5809 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5810 return -EINVAL;
5811
19957bb3
JB		 5812 if (!info->attrs[NL80211_ATTR_SSID])
5813 return -EINVAL;
5814
5815 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5816 return -EINVAL;
5817
fffd0934
JB		 5818 err = nl80211_parse_key(info, &key);
5819 if (err)
5820 return err;
5821
5822 if (key.idx >= 0) {
e31b8213
JB		 5823 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5824 return -EINVAL;
fffd0934
JB		 5825 if (!key.p.key || !key.p.key_len)
5826 return -EINVAL;
5827 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5828 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5829 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5830 key.p.key_len != WLAN_KEY_LEN_WEP104))
5831 return -EINVAL;
5832 if (key.idx > 4)
5833 return -EINVAL;
5834 } else {
5835 key.p.key_len = 0;
5836 key.p.key = NULL;
5837 }
5838
afea0b7a
JB		 5839 if (key.idx >= 0) {
5840 int i;
5841 bool ok = false;
5842 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5843 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5844 ok = true;
5845 break;
5846 }
5847 }
4c476991
JB		 5848 if (!ok)
5849 return -EINVAL;
afea0b7a
JB		 5850 }
5851
4c476991
JB		 5852 if (!rdev->ops->auth)
5853 return -EOPNOTSUPP;
636a5d36 5854
074ac8df 5855 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5856 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5857 return -EOPNOTSUPP;
eec60b03 5858
19957bb3 5859 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5860 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5861 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5862 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5863 return -EINVAL;
636a5d36 5864
19957bb3
JB		 5865 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5866 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5867
5868 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5869 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5870 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5871 }
5872
19957bb3 5873 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5874 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5875 return -EINVAL;
636a5d36 5876
e39e5b5e
JM		 5877 if (auth_type == NL80211_AUTHTYPE_SAE &&
5878 !info->attrs[NL80211_ATTR_SAE_DATA])
5879 return -EINVAL;
5880
5881 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5882 if (auth_type != NL80211_AUTHTYPE_SAE)
5883 return -EINVAL;
5884 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5885 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5886 /* need to include at least Auth Transaction and Status Code */
5887 if (sae_data_len < 4)
5888 return -EINVAL;
5889 }
5890
d5cdfacb
JM		 5891 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5892
95de817b
JB		 5893 /*
5894 * Since we no longer track auth state, ignore
5895 * requests to only change local state.
5896 */
5897 if (local_state_change)
5898 return 0;
5899
4c476991
JB		 5900 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5901 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5902 key.p.key, key.p.key_len, key.idx,
5903 sae_data, sae_data_len);
636a5d36
JM		 5904}
5905
c0692b8f
JB		 5906static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5907 struct genl_info *info,
3dc27d25
JB		 5908 struct cfg80211_crypto_settings *settings,
5909 int cipher_limit)
b23aa676 5910{
c0b2bbd8
JB		 5911 memset(settings, 0, sizeof(*settings));
5912
b23aa676
SO		 5913 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5914
c0692b8f
JB		 5915 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5916 u16 proto;
5917 proto = nla_get_u16(
5918 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5919 settings->control_port_ethertype = cpu_to_be16(proto);
5920 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5921 proto != ETH_P_PAE)
5922 return -EINVAL;
5923 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5924 settings->control_port_no_encrypt = true;
5925 } else
5926 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5927
b23aa676
SO		 5928 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5929 void *data;
5930 int len, i;
5931
5932 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5933 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5934 settings->n_ciphers_pairwise = len / sizeof(u32);
5935
5936 if (len % sizeof(u32))
5937 return -EINVAL;
5938
3dc27d25 5939 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5940 return -EINVAL;
5941
5942 memcpy(settings->ciphers_pairwise, data, len);
5943
5944 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5945 if (!cfg80211_supported_cipher_suite(
5946 &rdev->wiphy,
b23aa676
SO		 5947 settings->ciphers_pairwise[i]))
5948 return -EINVAL;
5949 }
5950
5951 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5952 settings->cipher_group =
5953 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5954 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5955 settings->cipher_group))
b23aa676
SO		 5956 return -EINVAL;
5957 }
5958
5959 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5960 settings->wpa_versions =
5961 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5962 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5963 return -EINVAL;
5964 }
5965
5966 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5967 void *data;
6d30240e 5968 int len;
b23aa676
SO		 5969
5970 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5971 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5972 settings->n_akm_suites = len / sizeof(u32);
5973
5974 if (len % sizeof(u32))
5975 return -EINVAL;
5976
1b9ca027
JM		 5977 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5978 return -EINVAL;
5979
b23aa676 5980 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5981 }
5982
5983 return 0;
5984}
5985
636a5d36
JM		 5986static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5987{
4c476991
JB		 5988 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5989 struct net_device *dev = info->user_ptr[1];
f444de05 5990 struct ieee80211_channel *chan;
f62fab73
JB		 5991 struct cfg80211_assoc_request req = {};
5992 const u8 *bssid, *ssid;
5993 int err, ssid_len = 0;
636a5d36 5994
f4a11bb0
JB		 5995 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5996 return -EINVAL;
5997
5998 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5999 !info->attrs[NL80211_ATTR_SSID] ||
6000 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6001 return -EINVAL;
6002
4c476991
JB		 6003 if (!rdev->ops->assoc)
6004 return -EOPNOTSUPP;
636a5d36 6005
074ac8df 6006 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6007 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6008 return -EOPNOTSUPP;
eec60b03 6009
19957bb3 6010 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6011
19957bb3
JB		 6012 chan = ieee80211_get_channel(&rdev->wiphy,
6013 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6014 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6015 return -EINVAL;
636a5d36 6016
19957bb3
JB		 6017 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6018 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6019
6020 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6021 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6022 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6023 }
6024
dc6382ce 6025 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6026 enum nl80211_mfp mfp =
dc6382ce 6027 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6028 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6029 req.use_mfp = true;
4c476991
JB		 6030 else if (mfp != NL80211_MFP_NO)
6031 return -EINVAL;
dc6382ce
JM		 6032 }
6033
3e5d7649 6034 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6035 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6036
7e7c8926 6037 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6038 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6039
6040 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6041 memcpy(&req.ht_capa_mask,
6042 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6043 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6044
6045 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6046 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6047 return -EINVAL;
f62fab73
JB		 6048 memcpy(&req.ht_capa,
6049 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6050 sizeof(req.ht_capa));
7e7c8926
BG		 6051 }
6052
ee2aca34 6053 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6054 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6055
6056 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6057 memcpy(&req.vht_capa_mask,
6058 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6059 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6060
6061 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6062 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6063 return -EINVAL;
f62fab73
JB		 6064 memcpy(&req.vht_capa,
6065 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6066 sizeof(req.vht_capa));
ee2aca34
JB		 6067 }
6068
f62fab73 6069 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
b23aa676 6070 if (!err)
f62fab73
JB		 6071 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6072 ssid, ssid_len, &req);
636a5d36 6073
636a5d36
JM		 6074 return err;
6075}
6076
6077static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6078{
4c476991
JB		 6079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6080 struct net_device *dev = info->user_ptr[1];
19957bb3 6081 const u8 *ie = NULL, *bssid;
4c476991 6082 int ie_len = 0;
19957bb3 6083 u16 reason_code;
d5cdfacb 6084 bool local_state_change;
636a5d36 6085
f4a11bb0
JB		 6086 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6087 return -EINVAL;
6088
6089 if (!info->attrs[NL80211_ATTR_MAC])
6090 return -EINVAL;
6091
6092 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6093 return -EINVAL;
6094
4c476991
JB		 6095 if (!rdev->ops->deauth)
6096 return -EOPNOTSUPP;
636a5d36 6097
074ac8df 6098 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6099 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6100 return -EOPNOTSUPP;
eec60b03 6101
19957bb3 6102 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6103
19957bb3
JB		 6104 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6105 if (reason_code == 0) {
f4a11bb0 6106 /* Reason Code 0 is reserved */
4c476991 6107 return -EINVAL;
255e737e 6108 }
636a5d36
JM		 6109
6110 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6111 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6112 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6113 }
6114
d5cdfacb
JM		 6115 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6116
4c476991
JB		 6117 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6118 local_state_change);
636a5d36
JM		 6119}
6120
6121static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6122{
4c476991
JB		 6123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6124 struct net_device *dev = info->user_ptr[1];
19957bb3 6125 const u8 *ie = NULL, *bssid;
4c476991 6126 int ie_len = 0;
19957bb3 6127 u16 reason_code;
d5cdfacb 6128 bool local_state_change;
636a5d36 6129
f4a11bb0
JB		 6130 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6131 return -EINVAL;
6132
6133 if (!info->attrs[NL80211_ATTR_MAC])
6134 return -EINVAL;
6135
6136 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6137 return -EINVAL;
6138
4c476991
JB		 6139 if (!rdev->ops->disassoc)
6140 return -EOPNOTSUPP;
636a5d36 6141
074ac8df 6142 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6143 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6144 return -EOPNOTSUPP;
eec60b03 6145
19957bb3 6146 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6147
19957bb3
JB		 6148 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6149 if (reason_code == 0) {
f4a11bb0 6150 /* Reason Code 0 is reserved */
4c476991 6151 return -EINVAL;
255e737e 6152 }
636a5d36
JM		 6153
6154 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6155 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6156 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6157 }
6158
d5cdfacb
JM		 6159 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6160
4c476991
JB		 6161 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6162 local_state_change);
636a5d36
JM		 6163}
6164
dd5b4cc7
FF		 6165static bool
6166nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6167 int mcast_rate[IEEE80211_NUM_BANDS],
6168 int rateval)
6169{
6170 struct wiphy *wiphy = &rdev->wiphy;
6171 bool found = false;
6172 int band, i;
6173
6174 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6175 struct ieee80211_supported_band *sband;
6176
6177 sband = wiphy->bands[band];
6178 if (!sband)
6179 continue;
6180
6181 for (i = 0; i < sband->n_bitrates; i++) {
6182 if (sband->bitrates[i].bitrate == rateval) {
6183 mcast_rate[band] = i + 1;
6184 found = true;
6185 break;
6186 }
6187 }
6188 }
6189
6190 return found;
6191}
6192
04a773ad
JB		 6193static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6194{
4c476991
JB		 6195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6196 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6197 struct cfg80211_ibss_params ibss;
6198 struct wiphy *wiphy;
fffd0934 6199 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6200 int err;
6201
8e30bc55
JB		 6202 memset(&ibss, 0, sizeof(ibss));
6203
04a773ad
JB		 6204 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6205 return -EINVAL;
6206
683b6d3b 6207 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6208 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6209 return -EINVAL;
6210
8e30bc55
JB		 6211 ibss.beacon_interval = 100;
6212
6213 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6214 ibss.beacon_interval =
6215 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6216 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6217 return -EINVAL;
6218 }
6219
4c476991
JB		 6220 if (!rdev->ops->join_ibss)
6221 return -EOPNOTSUPP;
04a773ad 6222
4c476991
JB		 6223 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6224 return -EOPNOTSUPP;
04a773ad 6225
79c97e97 6226 wiphy = &rdev->wiphy;
04a773ad 6227
39193498 6228 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6229 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6230
6231 if (!is_valid_ether_addr(ibss.bssid))
6232 return -EINVAL;
6233 }
04a773ad
JB		 6234 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6235 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6236
6237 if (info->attrs[NL80211_ATTR_IE]) {
6238 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6239 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6240 }
6241
683b6d3b
JB		 6242 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6243 if (err)
6244 return err;
04a773ad 6245
683b6d3b 6246 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6247 return -EINVAL;
6248
db9c64cf
JB		 6249 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6250 return -EINVAL;
6251 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6252 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 6253 return -EINVAL;
db9c64cf 6254
04a773ad 6255 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6256 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6257
fbd2c8dc
TP		 6258 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6259 u8 *rates =
6260 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6261 int n_rates =
6262 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6263 struct ieee80211_supported_band *sband =
683b6d3b 6264 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6265
34850ab2
JB		 6266 err = ieee80211_get_ratemask(sband, rates, n_rates,
6267 &ibss.basic_rates);
6268 if (err)
6269 return err;
fbd2c8dc 6270 }
dd5b4cc7
FF		 6271
6272 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6273 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6274 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6275 return -EINVAL;
fbd2c8dc 6276
4c476991 6277 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6278 bool no_ht = false;
6279
4c476991 6280 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6281 info->attrs[NL80211_ATTR_KEYS],
6282 &no_ht);
4c476991
JB		 6283 if (IS_ERR(connkeys))
6284 return PTR_ERR(connkeys);
de7044ee 6285
3d9d1d66
JB		 6286 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6287 no_ht) {
de7044ee
SM		 6288 kfree(connkeys);
6289 return -EINVAL;
6290 }
4c476991 6291 }
04a773ad 6292
267335d6
AQ		 6293 ibss.control_port =
6294 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6295
4c476991 6296 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6297 if (err)
6298 kfree(connkeys);
04a773ad
JB		 6299 return err;
6300}
6301
6302static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6303{
4c476991
JB		 6304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6305 struct net_device *dev = info->user_ptr[1];
04a773ad 6306
4c476991
JB		 6307 if (!rdev->ops->leave_ibss)
6308 return -EOPNOTSUPP;
04a773ad 6309
4c476991
JB		 6310 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6311 return -EOPNOTSUPP;
04a773ad 6312
4c476991 6313 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6314}
6315
f4e583c8
AQ		 6316static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6317{
6318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6319 struct net_device *dev = info->user_ptr[1];
6320 int mcast_rate[IEEE80211_NUM_BANDS];
6321 u32 nla_rate;
6322 int err;
6323
6324 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6325 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6326 return -EOPNOTSUPP;
6327
6328 if (!rdev->ops->set_mcast_rate)
6329 return -EOPNOTSUPP;
6330
6331 memset(mcast_rate, 0, sizeof(mcast_rate));
6332
6333 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6334 return -EINVAL;
6335
6336 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6337 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6338 return -EINVAL;
6339
6340 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6341
6342 return err;
6343}
6344
6345
aff89a9b
JB		 6346#ifdef CONFIG_NL80211_TESTMODE
6347static struct genl_multicast_group nl80211_testmode_mcgrp = {
6348 .name = "testmode",
6349};
6350
6351static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6352{
4c476991 6353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6354 int err;
6355
6356 if (!info->attrs[NL80211_ATTR_TESTDATA])
6357 return -EINVAL;
6358
aff89a9b
JB		 6359 err = -EOPNOTSUPP;
6360 if (rdev->ops->testmode_cmd) {
6361 rdev->testmode_info = info;
e35e4d28 6362 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6363 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6364 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6365 rdev->testmode_info = NULL;
6366 }
6367
aff89a9b
JB		 6368 return err;
6369}
6370
71063f0e
WYG		 6371static int nl80211_testmode_dump(struct sk_buff *skb,
6372 struct netlink_callback *cb)
6373{
00918d33 6374 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6375 int err;
6376 long phy_idx;
6377 void *data = NULL;
6378 int data_len = 0;
6379
6380 if (cb->args[0]) {
6381 /*
6382 * 0 is a valid index, but not valid for args[0],
6383 * so we need to offset by 1.
6384 */
6385 phy_idx = cb->args[0] - 1;
6386 } else {
6387 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6388 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6389 nl80211_policy);
6390 if (err)
6391 return err;
00918d33 6392
2bd7e35d
JB		 6393 mutex_lock(&cfg80211_mutex);
6394 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6395 nl80211_fam.attrbuf);
6396 if (IS_ERR(rdev)) {
6397 mutex_unlock(&cfg80211_mutex);
6398 return PTR_ERR(rdev);
00918d33 6399 }
2bd7e35d
JB		 6400 phy_idx = rdev->wiphy_idx;
6401 rdev = NULL;
6402 mutex_unlock(&cfg80211_mutex);
6403
71063f0e
WYG		 6404 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6405 cb->args[1] =
6406 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6407 }
6408
6409 if (cb->args[1]) {
6410 data = nla_data((void *)cb->args[1]);
6411 data_len = nla_len((void *)cb->args[1]);
6412 }
6413
6414 mutex_lock(&cfg80211_mutex);
00918d33
JB		 6415 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6416 if (!rdev) {
71063f0e
WYG		 6417 mutex_unlock(&cfg80211_mutex);
6418 return -ENOENT;
6419 }
00918d33 6420 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 6421 mutex_unlock(&cfg80211_mutex);
6422
00918d33 6423 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6424 err = -EOPNOTSUPP;
6425 goto out_err;
6426 }
6427
6428 while (1) {
15e47304 6429 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6430 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6431 NL80211_CMD_TESTMODE);
6432 struct nlattr *tmdata;
6433
9360ffd1 6434 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6435 genlmsg_cancel(skb, hdr);
6436 break;
6437 }
6438
6439 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6440 if (!tmdata) {
6441 genlmsg_cancel(skb, hdr);
6442 break;
6443 }
e35e4d28 6444 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6445 nla_nest_end(skb, tmdata);
6446
6447 if (err == -ENOBUFS || err == -ENOENT) {
6448 genlmsg_cancel(skb, hdr);
6449 break;
6450 } else if (err) {
6451 genlmsg_cancel(skb, hdr);
6452 goto out_err;
6453 }
6454
6455 genlmsg_end(skb, hdr);
6456 }
6457
6458 err = skb->len;
6459 /* see above */
6460 cb->args[0] = phy_idx + 1;
6461 out_err:
00918d33 6462 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 6463 return err;
6464}
6465
aff89a9b
JB		 6466static struct sk_buff *
6467__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6468 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6469{
6470 struct sk_buff *skb;
6471 void *hdr;
6472 struct nlattr *data;
6473
6474 skb = nlmsg_new(approxlen + 100, gfp);
6475 if (!skb)
6476 return NULL;
6477
15e47304 6478 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6479 if (!hdr) {
6480 kfree_skb(skb);
6481 return NULL;
6482 }
6483
9360ffd1
DM		 6484 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6485 goto nla_put_failure;
aff89a9b
JB		 6486 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6487
6488 ((void **)skb->cb)[0] = rdev;
6489 ((void **)skb->cb)[1] = hdr;
6490 ((void **)skb->cb)[2] = data;
6491
6492 return skb;
6493
6494 nla_put_failure:
6495 kfree_skb(skb);
6496 return NULL;
6497}
6498
6499struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6500 int approxlen)
6501{
6502 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6503
6504 if (WARN_ON(!rdev->testmode_info))
6505 return NULL;
6506
6507 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6508 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6509 rdev->testmode_info->snd_seq,
6510 GFP_KERNEL);
6511}
6512EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6513
6514int cfg80211_testmode_reply(struct sk_buff *skb)
6515{
6516 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6517 void *hdr = ((void **)skb->cb)[1];
6518 struct nlattr *data = ((void **)skb->cb)[2];
6519
6520 if (WARN_ON(!rdev->testmode_info)) {
6521 kfree_skb(skb);
6522 return -EINVAL;
6523 }
6524
6525 nla_nest_end(skb, data);
6526 genlmsg_end(skb, hdr);
6527 return genlmsg_reply(skb, rdev->testmode_info);
6528}
6529EXPORT_SYMBOL(cfg80211_testmode_reply);
6530
6531struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6532 int approxlen, gfp_t gfp)
6533{
6534 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6535
6536 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6537}
6538EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6539
6540void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6541{
6542 void *hdr = ((void **)skb->cb)[1];
6543 struct nlattr *data = ((void **)skb->cb)[2];
6544
6545 nla_nest_end(skb, data);
6546 genlmsg_end(skb, hdr);
6547 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6548}
6549EXPORT_SYMBOL(cfg80211_testmode_event);
6550#endif
6551
b23aa676
SO		 6552static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6553{
4c476991
JB		 6554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6555 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6556 struct cfg80211_connect_params connect;
6557 struct wiphy *wiphy;
fffd0934 6558 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6559 int err;
6560
6561 memset(&connect, 0, sizeof(connect));
6562
6563 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6564 return -EINVAL;
6565
6566 if (!info->attrs[NL80211_ATTR_SSID] ||
6567 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6568 return -EINVAL;
6569
6570 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6571 connect.auth_type =
6572 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6573 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6574 NL80211_CMD_CONNECT))
b23aa676
SO		 6575 return -EINVAL;
6576 } else
6577 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6578
6579 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6580
c0692b8f 6581 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6582 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6583 if (err)
6584 return err;
b23aa676 6585
074ac8df 6586 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6587 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6588 return -EOPNOTSUPP;
b23aa676 6589
79c97e97 6590 wiphy = &rdev->wiphy;
b23aa676 6591
4486ea98
BS		 6592 connect.bg_scan_period = -1;
6593 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6594 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6595 connect.bg_scan_period =
6596 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6597 }
6598
b23aa676
SO		 6599 if (info->attrs[NL80211_ATTR_MAC])
6600 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6601 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6602 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6603
6604 if (info->attrs[NL80211_ATTR_IE]) {
6605 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6606 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6607 }
6608
cee00a95
JM		 6609 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6610 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6611 if (connect.mfp != NL80211_MFP_REQUIRED &&
6612 connect.mfp != NL80211_MFP_NO)
6613 return -EINVAL;
6614 } else {
6615 connect.mfp = NL80211_MFP_NO;
6616 }
6617
b23aa676
SO		 6618 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6619 connect.channel =
6620 ieee80211_get_channel(wiphy,
6621 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6622 if (!connect.channel ||
4c476991
JB		 6623 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6624 return -EINVAL;
b23aa676
SO		 6625 }
6626
fffd0934
JB		 6627 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6628 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6629 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6630 if (IS_ERR(connkeys))
6631 return PTR_ERR(connkeys);
fffd0934
JB		 6632 }
6633
7e7c8926
BG		 6634 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6635 connect.flags |= ASSOC_REQ_DISABLE_HT;
6636
6637 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6638 memcpy(&connect.ht_capa_mask,
6639 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6640 sizeof(connect.ht_capa_mask));
6641
6642 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6643 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6644 kfree(connkeys);
7e7c8926 6645 return -EINVAL;
b4e4f47e 6646 }
7e7c8926
BG		 6647 memcpy(&connect.ht_capa,
6648 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6649 sizeof(connect.ht_capa));
6650 }
6651
ee2aca34
JB		 6652 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6653 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6654
6655 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6656 memcpy(&connect.vht_capa_mask,
6657 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6658 sizeof(connect.vht_capa_mask));
6659
6660 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6661 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6662 kfree(connkeys);
6663 return -EINVAL;
6664 }
6665 memcpy(&connect.vht_capa,
6666 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6667 sizeof(connect.vht_capa));
6668 }
6669
fffd0934 6670 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 6671 if (err)
6672 kfree(connkeys);
b23aa676
SO		 6673 return err;
6674}
6675
6676static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6677{
4c476991
JB		 6678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6679 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6680 u16 reason;
6681
6682 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6683 reason = WLAN_REASON_DEAUTH_LEAVING;
6684 else
6685 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6686
6687 if (reason == 0)
6688 return -EINVAL;
6689
074ac8df 6690 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6691 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6692 return -EOPNOTSUPP;
b23aa676 6693
4c476991 6694 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 6695}
6696
463d0183
JB		 6697static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6698{
4c476991 6699 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6700 struct net *net;
6701 int err;
6702 u32 pid;
6703
6704 if (!info->attrs[NL80211_ATTR_PID])
6705 return -EINVAL;
6706
6707 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6708
463d0183 6709 net = get_net_ns_by_pid(pid);
4c476991
JB		 6710 if (IS_ERR(net))
6711 return PTR_ERR(net);
463d0183
JB		 6712
6713 err = 0;
6714
6715 /* check if anything to do */
4c476991
JB		 6716 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6717 err = cfg80211_switch_netns(rdev, net);
463d0183 6718
463d0183 6719 put_net(net);
463d0183
JB		 6720 return err;
6721}
6722
67fbb16b
SO		 6723static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6724{
4c476991 6725 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6726 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6727 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6728 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6729 struct cfg80211_pmksa pmksa;
6730
6731 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6732
6733 if (!info->attrs[NL80211_ATTR_MAC])
6734 return -EINVAL;
6735
6736 if (!info->attrs[NL80211_ATTR_PMKID])
6737 return -EINVAL;
6738
67fbb16b
SO		 6739 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6740 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6741
074ac8df 6742 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6743 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6744 return -EOPNOTSUPP;
67fbb16b
SO		 6745
6746 switch (info->genlhdr->cmd) {
6747 case NL80211_CMD_SET_PMKSA:
6748 rdev_ops = rdev->ops->set_pmksa;
6749 break;
6750 case NL80211_CMD_DEL_PMKSA:
6751 rdev_ops = rdev->ops->del_pmksa;
6752 break;
6753 default:
6754 WARN_ON(1);
6755 break;
6756 }
6757
4c476991
JB		 6758 if (!rdev_ops)
6759 return -EOPNOTSUPP;
67fbb16b 6760
4c476991 6761 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6762}
6763
6764static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6765{
4c476991
JB		 6766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6767 struct net_device *dev = info->user_ptr[1];
67fbb16b 6768
074ac8df 6769 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6770 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6771 return -EOPNOTSUPP;
67fbb16b 6772
4c476991
JB		 6773 if (!rdev->ops->flush_pmksa)
6774 return -EOPNOTSUPP;
67fbb16b 6775
e35e4d28 6776 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6777}
6778
109086ce
AN		 6779static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6780{
6781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6782 struct net_device *dev = info->user_ptr[1];
6783 u8 action_code, dialog_token;
6784 u16 status_code;
6785 u8 *peer;
6786
6787 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6788 !rdev->ops->tdls_mgmt)
6789 return -EOPNOTSUPP;
6790
6791 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6792 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6793 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6794 !info->attrs[NL80211_ATTR_IE] ||
6795 !info->attrs[NL80211_ATTR_MAC])
6796 return -EINVAL;
6797
6798 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6799 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6800 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6801 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6802
e35e4d28
HG		 6803 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6804 dialog_token, status_code,
6805 nla_data(info->attrs[NL80211_ATTR_IE]),
6806 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6807}
6808
6809static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6810{
6811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6812 struct net_device *dev = info->user_ptr[1];
6813 enum nl80211_tdls_operation operation;
6814 u8 *peer;
6815
6816 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6817 !rdev->ops->tdls_oper)
6818 return -EOPNOTSUPP;
6819
6820 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6821 !info->attrs[NL80211_ATTR_MAC])
6822 return -EINVAL;
6823
6824 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6825 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6826
e35e4d28 6827 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6828}
6829
9588bbd5
JM		 6830static int nl80211_remain_on_channel(struct sk_buff *skb,
6831 struct genl_info *info)
6832{
4c476991 6833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6834 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6835 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6836 struct sk_buff *msg;
6837 void *hdr;
6838 u64 cookie;
683b6d3b 6839 u32 duration;
9588bbd5
JM		 6840 int err;
6841
6842 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6843 !info->attrs[NL80211_ATTR_DURATION])
6844 return -EINVAL;
6845
6846 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6847
ebf348fc
JB		 6848 if (!rdev->ops->remain_on_channel ||
6849 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6850 return -EOPNOTSUPP;
6851
9588bbd5 6852 /*
ebf348fc
JB		 6853 * We should be on that channel for at least a minimum amount of
6854 * time (10ms) but no longer than the driver supports.
9588bbd5 6855 */
ebf348fc 6856 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6857 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6858 return -EINVAL;
6859
683b6d3b
JB		 6860 err = nl80211_parse_chandef(rdev, info, &chandef);
6861 if (err)
6862 return err;
9588bbd5
JM		 6863
6864 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6865 if (!msg)
6866 return -ENOMEM;
9588bbd5 6867
15e47304 6868 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6869 NL80211_CMD_REMAIN_ON_CHANNEL);
6870
6871 if (IS_ERR(hdr)) {
6872 err = PTR_ERR(hdr);
6873 goto free_msg;
6874 }
6875
683b6d3b
JB		 6876 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6877 duration, &cookie);
9588bbd5
JM		 6878
6879 if (err)
6880 goto free_msg;
6881
9360ffd1
DM		 6882 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6883 goto nla_put_failure;
9588bbd5
JM		 6884
6885 genlmsg_end(msg, hdr);
4c476991
JB		 6886
6887 return genlmsg_reply(msg, info);
9588bbd5
JM		 6888
6889 nla_put_failure:
6890 err = -ENOBUFS;
6891 free_msg:
6892 nlmsg_free(msg);
9588bbd5
JM		 6893 return err;
6894}
6895
6896static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6897 struct genl_info *info)
6898{
4c476991 6899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6900 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6901 u64 cookie;
9588bbd5
JM		 6902
6903 if (!info->attrs[NL80211_ATTR_COOKIE])
6904 return -EINVAL;
6905
4c476991
JB		 6906 if (!rdev->ops->cancel_remain_on_channel)
6907 return -EOPNOTSUPP;
9588bbd5 6908
9588bbd5
JM		 6909 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6910
e35e4d28 6911 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6912}
6913
13ae75b1
JM		 6914static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6915 u8 *rates, u8 rates_len)
6916{
6917 u8 i;
6918 u32 mask = 0;
6919
6920 for (i = 0; i < rates_len; i++) {
6921 int rate = (rates[i] & 0x7f) * 5;
6922 int ridx;
6923 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6924 struct ieee80211_rate *srate =
6925 &sband->bitrates[ridx];
6926 if (rate == srate->bitrate) {
6927 mask |= 1 << ridx;
6928 break;
6929 }
6930 }
6931 if (ridx == sband->n_bitrates)
6932 return 0; /* rate not found */
6933 }
6934
6935 return mask;
6936}
6937
24db78c0
SW		 6938static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6939 u8 *rates, u8 rates_len,
6940 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6941{
6942 u8 i;
6943
6944 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6945
6946 for (i = 0; i < rates_len; i++) {
6947 int ridx, rbit;
6948
6949 ridx = rates[i] / 8;
6950 rbit = BIT(rates[i] % 8);
6951
6952 /* check validity */
910570b5 6953 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6954 return false;
6955
6956 /* check availability */
6957 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6958 mcs[ridx] |= rbit;
6959 else
6960 return false;
6961 }
6962
6963 return true;
6964}
6965
b54452b0 6966static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6967 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6968 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6969 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6970 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6971};
6972
6973static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6974 struct genl_info *info)
6975{
6976 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6978 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6979 int rem, i;
6980 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6981 struct nlattr *tx_rates;
6982 struct ieee80211_supported_band *sband;
6983
6984 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6985 return -EINVAL;
6986
4c476991
JB		 6987 if (!rdev->ops->set_bitrate_mask)
6988 return -EOPNOTSUPP;
13ae75b1
JM		 6989
6990 memset(&mask, 0, sizeof(mask));
6991 /* Default to all rates enabled */
6992 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6993 sband = rdev->wiphy.bands[i];
6994 mask.control[i].legacy =
6995 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6996 if (sband)
6997 memcpy(mask.control[i].mcs,
6998 sband->ht_cap.mcs.rx_mask,
6999 sizeof(mask.control[i].mcs));
7000 else
7001 memset(mask.control[i].mcs, 0,
7002 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7003 }
7004
7005 /*
7006 * The nested attribute uses enum nl80211_band as the index. This maps
7007 * directly to the enum ieee80211_band values used in cfg80211.
7008 */
24db78c0 7009 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7010 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7011 {
7012 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7013 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7014 return -EINVAL;
13ae75b1 7015 sband = rdev->wiphy.bands[band];
4c476991
JB		 7016 if (sband == NULL)
7017 return -EINVAL;
13ae75b1
JM		 7018 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7019 nla_len(tx_rates), nl80211_txattr_policy);
7020 if (tb[NL80211_TXRATE_LEGACY]) {
7021 mask.control[band].legacy = rateset_to_mask(
7022 sband,
7023 nla_data(tb[NL80211_TXRATE_LEGACY]),
7024 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7025 if ((mask.control[band].legacy == 0) &&
7026 nla_len(tb[NL80211_TXRATE_LEGACY]))
7027 return -EINVAL;
24db78c0
SW		 7028 }
7029 if (tb[NL80211_TXRATE_MCS]) {
7030 if (!ht_rateset_to_mask(
7031 sband,
7032 nla_data(tb[NL80211_TXRATE_MCS]),
7033 nla_len(tb[NL80211_TXRATE_MCS]),
7034 mask.control[band].mcs))
7035 return -EINVAL;
7036 }
7037
7038 if (mask.control[band].legacy == 0) {
7039 /* don't allow empty legacy rates if HT
7040 * is not even supported. */
7041 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7042 return -EINVAL;
7043
7044 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7045 if (mask.control[band].mcs[i])
7046 break;
7047
7048 /* legacy and mcs rates may not be both empty */
7049 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7050 return -EINVAL;
13ae75b1
JM		 7051 }
7052 }
7053
e35e4d28 7054 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7055}
7056
2e161f78 7057static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7058{
4c476991 7059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7060 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7061 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7062
7063 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7064 return -EINVAL;
7065
2e161f78
JB		 7066 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7067 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7068
71bbc994
JB		 7069 switch (wdev->iftype) {
7070 case NL80211_IFTYPE_STATION:
7071 case NL80211_IFTYPE_ADHOC:
7072 case NL80211_IFTYPE_P2P_CLIENT:
7073 case NL80211_IFTYPE_AP:
7074 case NL80211_IFTYPE_AP_VLAN:
7075 case NL80211_IFTYPE_MESH_POINT:
7076 case NL80211_IFTYPE_P2P_GO:
98104fde 7077 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7078 break;
7079 default:
4c476991 7080 return -EOPNOTSUPP;
71bbc994 7081 }
026331c4
JM		 7082
7083 /* not much point in registering if we can't reply */
4c476991
JB		 7084 if (!rdev->ops->mgmt_tx)
7085 return -EOPNOTSUPP;
026331c4 7086
15e47304 7087 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7088 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7089 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7090}
7091
2e161f78 7092static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7093{
4c476991 7094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7095 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7096 struct cfg80211_chan_def chandef;
026331c4 7097 int err;
d64d373f 7098 void *hdr = NULL;
026331c4 7099 u64 cookie;
e247bd90 7100 struct sk_buff *msg = NULL;
f7ca38df 7101 unsigned int wait = 0;
e247bd90
JB		 7102 bool offchan, no_cck, dont_wait_for_ack;
7103
7104 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7105
683b6d3b 7106 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7107 return -EINVAL;
7108
4c476991
JB		 7109 if (!rdev->ops->mgmt_tx)
7110 return -EOPNOTSUPP;
026331c4 7111
71bbc994
JB		 7112 switch (wdev->iftype) {
7113 case NL80211_IFTYPE_STATION:
7114 case NL80211_IFTYPE_ADHOC:
7115 case NL80211_IFTYPE_P2P_CLIENT:
7116 case NL80211_IFTYPE_AP:
7117 case NL80211_IFTYPE_AP_VLAN:
7118 case NL80211_IFTYPE_MESH_POINT:
7119 case NL80211_IFTYPE_P2P_GO:
98104fde 7120 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7121 break;
7122 default:
4c476991 7123 return -EOPNOTSUPP;
71bbc994 7124 }
026331c4 7125
f7ca38df 7126 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7127 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7128 return -EINVAL;
7129 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7130
7131 /*
7132 * We should wait on the channel for at least a minimum amount
7133 * of time (10ms) but no longer than the driver supports.
7134 */
7135 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7136 wait > rdev->wiphy.max_remain_on_channel_duration)
7137 return -EINVAL;
7138
f7ca38df
JB		 7139 }
7140
f7ca38df
JB		 7141 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7142
7c4ef712
JB		 7143 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7144 return -EINVAL;
7145
e9f935e3
RM		 7146 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7147
683b6d3b
JB		 7148 err = nl80211_parse_chandef(rdev, info, &chandef);
7149 if (err)
7150 return err;
026331c4 7151
e247bd90
JB		 7152 if (!dont_wait_for_ack) {
7153 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7154 if (!msg)
7155 return -ENOMEM;
026331c4 7156
15e47304 7157 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7158 NL80211_CMD_FRAME);
026331c4 7159
e247bd90
JB		 7160 if (IS_ERR(hdr)) {
7161 err = PTR_ERR(hdr);
7162 goto free_msg;
7163 }
026331c4 7164 }
e247bd90 7165
683b6d3b 7166 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7167 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7168 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7169 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7170 if (err)
7171 goto free_msg;
7172
e247bd90 7173 if (msg) {
9360ffd1
DM		 7174 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7175 goto nla_put_failure;
026331c4 7176
e247bd90
JB		 7177 genlmsg_end(msg, hdr);
7178 return genlmsg_reply(msg, info);
7179 }
7180
7181 return 0;
026331c4
JM		 7182
7183 nla_put_failure:
7184 err = -ENOBUFS;
7185 free_msg:
7186 nlmsg_free(msg);
026331c4
JM		 7187 return err;
7188}
7189
f7ca38df
JB		 7190static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7191{
7192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7193 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7194 u64 cookie;
7195
7196 if (!info->attrs[NL80211_ATTR_COOKIE])
7197 return -EINVAL;
7198
7199 if (!rdev->ops->mgmt_tx_cancel_wait)
7200 return -EOPNOTSUPP;
7201
71bbc994
JB		 7202 switch (wdev->iftype) {
7203 case NL80211_IFTYPE_STATION:
7204 case NL80211_IFTYPE_ADHOC:
7205 case NL80211_IFTYPE_P2P_CLIENT:
7206 case NL80211_IFTYPE_AP:
7207 case NL80211_IFTYPE_AP_VLAN:
7208 case NL80211_IFTYPE_P2P_GO:
98104fde 7209 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7210 break;
7211 default:
f7ca38df 7212 return -EOPNOTSUPP;
71bbc994 7213 }
f7ca38df
JB		 7214
7215 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7216
e35e4d28 7217 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7218}
7219
ffb9eb3d
KV		 7220static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7221{
4c476991 7222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7223 struct wireless_dev *wdev;
4c476991 7224 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7225 u8 ps_state;
7226 bool state;
7227 int err;
7228
4c476991
JB		 7229 if (!info->attrs[NL80211_ATTR_PS_STATE])
7230 return -EINVAL;
ffb9eb3d
KV		 7231
7232 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7233
4c476991
JB		 7234 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7235 return -EINVAL;
ffb9eb3d
KV		 7236
7237 wdev = dev->ieee80211_ptr;
7238
4c476991
JB		 7239 if (!rdev->ops->set_power_mgmt)
7240 return -EOPNOTSUPP;
ffb9eb3d
KV		 7241
7242 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7243
7244 if (state == wdev->ps)
4c476991 7245 return 0;
ffb9eb3d 7246
e35e4d28 7247 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7248 if (!err)
7249 wdev->ps = state;
ffb9eb3d
KV		 7250 return err;
7251}
7252
7253static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7254{
4c476991 7255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7256 enum nl80211_ps_state ps_state;
7257 struct wireless_dev *wdev;
4c476991 7258 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7259 struct sk_buff *msg;
7260 void *hdr;
7261 int err;
7262
ffb9eb3d
KV		 7263 wdev = dev->ieee80211_ptr;
7264
4c476991
JB		 7265 if (!rdev->ops->set_power_mgmt)
7266 return -EOPNOTSUPP;
ffb9eb3d
KV		 7267
7268 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7269 if (!msg)
7270 return -ENOMEM;
ffb9eb3d 7271
15e47304 7272 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7273 NL80211_CMD_GET_POWER_SAVE);
7274 if (!hdr) {
4c476991 7275 err = -ENOBUFS;
ffb9eb3d
KV		 7276 goto free_msg;
7277 }
7278
7279 if (wdev->ps)
7280 ps_state = NL80211_PS_ENABLED;
7281 else
7282 ps_state = NL80211_PS_DISABLED;
7283
9360ffd1
DM		 7284 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7285 goto nla_put_failure;
ffb9eb3d
KV		 7286
7287 genlmsg_end(msg, hdr);
4c476991 7288 return genlmsg_reply(msg, info);
ffb9eb3d 7289
4c476991 7290 nla_put_failure:
ffb9eb3d 7291 err = -ENOBUFS;
4c476991 7292 free_msg:
ffb9eb3d 7293 nlmsg_free(msg);
ffb9eb3d
KV		 7294 return err;
7295}
7296
d6dc1a38
JO		 7297static struct nla_policy
7298nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7299 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7300 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7301 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7302 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7303 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7304 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7305};
7306
84f10708 7307static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7308 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7309{
7310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7311 struct wireless_dev *wdev;
7312 struct net_device *dev = info->user_ptr[1];
7313
d9d8b019 7314 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7315 return -EINVAL;
7316
7317 wdev = dev->ieee80211_ptr;
7318
7319 if (!rdev->ops->set_cqm_txe_config)
7320 return -EOPNOTSUPP;
7321
7322 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7323 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7324 return -EOPNOTSUPP;
7325
e35e4d28 7326 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7327}
7328
d6dc1a38
JO		 7329static int nl80211_set_cqm_rssi(struct genl_info *info,
7330 s32 threshold, u32 hysteresis)
7331{
4c476991 7332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7333 struct wireless_dev *wdev;
4c476991 7334 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7335
7336 if (threshold > 0)
7337 return -EINVAL;
7338
d6dc1a38
JO		 7339 wdev = dev->ieee80211_ptr;
7340
4c476991
JB		 7341 if (!rdev->ops->set_cqm_rssi_config)
7342 return -EOPNOTSUPP;
d6dc1a38 7343
074ac8df 7344 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7345 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7346 return -EOPNOTSUPP;
d6dc1a38 7347
e35e4d28 7348 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7349}
7350
7351static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7352{
7353 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7354 struct nlattr *cqm;
7355 int err;
7356
7357 cqm = info->attrs[NL80211_ATTR_CQM];
7358 if (!cqm) {
7359 err = -EINVAL;
7360 goto out;
7361 }
7362
7363 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7364 nl80211_attr_cqm_policy);
7365 if (err)
7366 goto out;
7367
7368 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7369 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7370 s32 threshold;
7371 u32 hysteresis;
7372 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7373 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7374 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7375 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7376 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7377 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7378 u32 rate, pkts, intvl;
7379 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7380 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7381 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7382 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7383 } else
7384 err = -EINVAL;
7385
7386out:
7387 return err;
7388}
7389
29cbe68c
JB		 7390static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7391{
7392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7393 struct net_device *dev = info->user_ptr[1];
7394 struct mesh_config cfg;
c80d545d 7395 struct mesh_setup setup;
29cbe68c
JB		 7396 int err;
7397
7398 /* start with default */
7399 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7400 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7401
24bdd9f4 7402 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7403 /* and parse parameters if given */
24bdd9f4 7404 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7405 if (err)
7406 return err;
7407 }
7408
7409 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7410 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7411 return -EINVAL;
7412
c80d545d
JC		 7413 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7414 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7415
4bb62344
CYY		 7416 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7417 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7418 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7419 return -EINVAL;
7420
9bdbf04d
MP		 7421 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7422 setup.beacon_interval =
7423 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7424 if (setup.beacon_interval < 10 ||
7425 setup.beacon_interval > 10000)
7426 return -EINVAL;
7427 }
7428
7429 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7430 setup.dtim_period =
7431 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7432 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7433 return -EINVAL;
7434 }
7435
c80d545d
JC		 7436 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7437 /* parse additional setup parameters if given */
7438 err = nl80211_parse_mesh_setup(info, &setup);
7439 if (err)
7440 return err;
7441 }
7442
cc1d2806 7443 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7444 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7445 if (err)
7446 return err;
cc1d2806
JB		 7447 } else {
7448 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7449 setup.chandef.chan = NULL;
cc1d2806
JB		 7450 }
7451
c80d545d 7452 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7453}
7454
7455static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7456{
7457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7458 struct net_device *dev = info->user_ptr[1];
7459
7460 return cfg80211_leave_mesh(rdev, dev);
7461}
7462
dfb89c56 7463#ifdef CONFIG_PM
bb92d199
AK		 7464static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7465 struct cfg80211_registered_device *rdev)
7466{
7467 struct nlattr *nl_pats, *nl_pat;
7468 int i, pat_len;
7469
7470 if (!rdev->wowlan->n_patterns)
7471 return 0;
7472
7473 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7474 if (!nl_pats)
7475 return -ENOBUFS;
7476
7477 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7478 nl_pat = nla_nest_start(msg, i + 1);
7479 if (!nl_pat)
7480 return -ENOBUFS;
7481 pat_len = rdev->wowlan->patterns[i].pattern_len;
7482 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7483 DIV_ROUND_UP(pat_len, 8),
7484 rdev->wowlan->patterns[i].mask) ||
7485 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7486 pat_len, rdev->wowlan->patterns[i].pattern) ||
7487 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7488 rdev->wowlan->patterns[i].pkt_offset))
7489 return -ENOBUFS;
7490 nla_nest_end(msg, nl_pat);
7491 }
7492 nla_nest_end(msg, nl_pats);
7493
7494 return 0;
7495}
7496
2a0e047e
JB		 7497static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7498 struct cfg80211_wowlan_tcp *tcp)
7499{
7500 struct nlattr *nl_tcp;
7501
7502 if (!tcp)
7503 return 0;
7504
7505 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7506 if (!nl_tcp)
7507 return -ENOBUFS;
7508
7509 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7510 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7511 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7512 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7513 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7514 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7515 tcp->payload_len, tcp->payload) ||
7516 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7517 tcp->data_interval) ||
7518 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7519 tcp->wake_len, tcp->wake_data) ||
7520 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7521 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7522 return -ENOBUFS;
7523
7524 if (tcp->payload_seq.len &&
7525 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7526 sizeof(tcp->payload_seq), &tcp->payload_seq))
7527 return -ENOBUFS;
7528
7529 if (tcp->payload_tok.len &&
7530 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7531 sizeof(tcp->payload_tok) + tcp->tokens_size,
7532 &tcp->payload_tok))
7533 return -ENOBUFS;
7534
7535 return 0;
7536}
7537
ff1b6e69
JB		 7538static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7539{
7540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7541 struct sk_buff *msg;
7542 void *hdr;
2a0e047e 7543 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7544
2a0e047e
JB		 7545 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7546 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7547 return -EOPNOTSUPP;
7548
2a0e047e
JB		 7549 if (rdev->wowlan && rdev->wowlan->tcp) {
7550 /* adjust size to have room for all the data */
7551 size += rdev->wowlan->tcp->tokens_size +
7552 rdev->wowlan->tcp->payload_len +
7553 rdev->wowlan->tcp->wake_len +
7554 rdev->wowlan->tcp->wake_len / 8;
7555 }
7556
7557 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7558 if (!msg)
7559 return -ENOMEM;
7560
15e47304 7561 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7562 NL80211_CMD_GET_WOWLAN);
7563 if (!hdr)
7564 goto nla_put_failure;
7565
7566 if (rdev->wowlan) {
7567 struct nlattr *nl_wowlan;
7568
7569 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7570 if (!nl_wowlan)
7571 goto nla_put_failure;
7572
9360ffd1
DM		 7573 if ((rdev->wowlan->any &&
7574 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7575 (rdev->wowlan->disconnect &&
7576 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7577 (rdev->wowlan->magic_pkt &&
7578 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7579 (rdev->wowlan->gtk_rekey_failure &&
7580 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7581 (rdev->wowlan->eap_identity_req &&
7582 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7583 (rdev->wowlan->four_way_handshake &&
7584 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7585 (rdev->wowlan->rfkill_release &&
7586 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7587 goto nla_put_failure;
2a0e047e 7588
bb92d199
AK		 7589 if (nl80211_send_wowlan_patterns(msg, rdev))
7590 goto nla_put_failure;
2a0e047e
JB		 7591
7592 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7593 goto nla_put_failure;
7594
ff1b6e69
JB		 7595 nla_nest_end(msg, nl_wowlan);
7596 }
7597
7598 genlmsg_end(msg, hdr);
7599 return genlmsg_reply(msg, info);
7600
7601nla_put_failure:
7602 nlmsg_free(msg);
7603 return -ENOBUFS;
7604}
7605
2a0e047e
JB		 7606static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7607 struct nlattr *attr,
7608 struct cfg80211_wowlan *trig)
7609{
7610 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7611 struct cfg80211_wowlan_tcp *cfg;
7612 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7613 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7614 u32 size;
7615 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7616 int err, port;
7617
7618 if (!rdev->wiphy.wowlan.tcp)
7619 return -EINVAL;
7620
7621 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7622 nla_data(attr), nla_len(attr),
7623 nl80211_wowlan_tcp_policy);
7624 if (err)
7625 return err;
7626
7627 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7628 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7629 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7630 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7631 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7632 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7633 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7634 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7635 return -EINVAL;
7636
7637 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7638 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7639 return -EINVAL;
7640
7641 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
723d568a
JB		 7642 rdev->wiphy.wowlan.tcp->data_interval_max ||
7643 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7644 return -EINVAL;
7645
7646 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7647 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7648 return -EINVAL;
7649
7650 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7651 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7652 return -EINVAL;
7653
7654 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7655 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7656
7657 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7658 tokens_size = tokln - sizeof(*tok);
7659
7660 if (!tok->len || tokens_size % tok->len)
7661 return -EINVAL;
7662 if (!rdev->wiphy.wowlan.tcp->tok)
7663 return -EINVAL;
7664 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7665 return -EINVAL;
7666 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7667 return -EINVAL;
7668 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7669 return -EINVAL;
7670 if (tok->offset + tok->len > data_size)
7671 return -EINVAL;
7672 }
7673
7674 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7675 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7676 if (!rdev->wiphy.wowlan.tcp->seq)
7677 return -EINVAL;
7678 if (seq->len == 0 || seq->len > 4)
7679 return -EINVAL;
7680 if (seq->len + seq->offset > data_size)
7681 return -EINVAL;
7682 }
7683
7684 size = sizeof(*cfg);
7685 size += data_size;
7686 size += wake_size + wake_mask_size;
7687 size += tokens_size;
7688
7689 cfg = kzalloc(size, GFP_KERNEL);
7690 if (!cfg)
7691 return -ENOMEM;
7692 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7693 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7694 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7695 ETH_ALEN);
7696 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7697 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7698 else
7699 port = 0;
7700#ifdef CONFIG_INET
7701 /* allocate a socket and port for it and use it */
7702 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7703 IPPROTO_TCP, &cfg->sock, 1);
7704 if (err) {
7705 kfree(cfg);
7706 return err;
7707 }
7708 if (inet_csk_get_port(cfg->sock->sk, port)) {
7709 sock_release(cfg->sock);
7710 kfree(cfg);
7711 return -EADDRINUSE;
7712 }
7713 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7714#else
7715 if (!port) {
7716 kfree(cfg);
7717 return -EINVAL;
7718 }
7719 cfg->src_port = port;
7720#endif
7721
7722 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7723 cfg->payload_len = data_size;
7724 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7725 memcpy((void *)cfg->payload,
7726 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7727 data_size);
7728 if (seq)
7729 cfg->payload_seq = *seq;
7730 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7731 cfg->wake_len = wake_size;
7732 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7733 memcpy((void *)cfg->wake_data,
7734 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7735 wake_size);
7736 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7737 data_size + wake_size;
7738 memcpy((void *)cfg->wake_mask,
7739 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7740 wake_mask_size);
7741 if (tok) {
7742 cfg->tokens_size = tokens_size;
7743 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7744 }
7745
7746 trig->tcp = cfg;
7747
7748 return 0;
7749}
7750
ff1b6e69
JB		 7751static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7752{
7753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7754 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7755 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7756 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7757 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7758 int err, i;
6d52563f 7759 bool prev_enabled = rdev->wowlan;
ff1b6e69 7760
2a0e047e
JB		 7761 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7762 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7763 return -EOPNOTSUPP;
7764
ae33bd81
JB		 7765 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7766 cfg80211_rdev_free_wowlan(rdev);
7767 rdev->wowlan = NULL;
7768 goto set_wakeup;
7769 }
ff1b6e69
JB		 7770
7771 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7772 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7773 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7774 nl80211_wowlan_policy);
7775 if (err)
7776 return err;
7777
7778 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7779 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7780 return -EINVAL;
7781 new_triggers.any = true;
7782 }
7783
7784 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7785 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7786 return -EINVAL;
7787 new_triggers.disconnect = true;
7788 }
7789
7790 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7791 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7792 return -EINVAL;
7793 new_triggers.magic_pkt = true;
7794 }
7795
77dbbb13
JB		 7796 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7797 return -EINVAL;
7798
7799 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7800 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7801 return -EINVAL;
7802 new_triggers.gtk_rekey_failure = true;
7803 }
7804
7805 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7806 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7807 return -EINVAL;
7808 new_triggers.eap_identity_req = true;
7809 }
7810
7811 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7812 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7813 return -EINVAL;
7814 new_triggers.four_way_handshake = true;
7815 }
7816
7817 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7818 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7819 return -EINVAL;
7820 new_triggers.rfkill_release = true;
7821 }
7822
ff1b6e69
JB		 7823 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7824 struct nlattr *pat;
7825 int n_patterns = 0;
bb92d199 7826 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7827 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7828
7829 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7830 rem)
7831 n_patterns++;
7832 if (n_patterns > wowlan->n_patterns)
7833 return -EINVAL;
7834
7835 new_triggers.patterns = kcalloc(n_patterns,
7836 sizeof(new_triggers.patterns[0]),
7837 GFP_KERNEL);
7838 if (!new_triggers.patterns)
7839 return -ENOMEM;
7840
7841 new_triggers.n_patterns = n_patterns;
7842 i = 0;
7843
7844 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7845 rem) {
7846 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7847 nla_data(pat), nla_len(pat), NULL);
7848 err = -EINVAL;
7849 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7850 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7851 goto error;
7852 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7853 mask_len = DIV_ROUND_UP(pat_len, 8);
7854 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7855 mask_len)
7856 goto error;
7857 if (pat_len > wowlan->pattern_max_len ||
7858 pat_len < wowlan->pattern_min_len)
7859 goto error;
7860
bb92d199
AK		 7861 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7862 pkt_offset = 0;
7863 else
7864 pkt_offset = nla_get_u32(
7865 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7866 if (pkt_offset > wowlan->max_pkt_offset)
7867 goto error;
7868 new_triggers.patterns[i].pkt_offset = pkt_offset;
7869
ff1b6e69
JB		 7870 new_triggers.patterns[i].mask =
7871 kmalloc(mask_len + pat_len, GFP_KERNEL);
7872 if (!new_triggers.patterns[i].mask) {
7873 err = -ENOMEM;
7874 goto error;
7875 }
7876 new_triggers.patterns[i].pattern =
7877 new_triggers.patterns[i].mask + mask_len;
7878 memcpy(new_triggers.patterns[i].mask,
7879 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7880 mask_len);
7881 new_triggers.patterns[i].pattern_len = pat_len;
7882 memcpy(new_triggers.patterns[i].pattern,
7883 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7884 pat_len);
7885 i++;
7886 }
7887 }
7888
2a0e047e
JB		 7889 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7890 err = nl80211_parse_wowlan_tcp(
7891 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7892 &new_triggers);
7893 if (err)
7894 goto error;
7895 }
7896
ae33bd81
JB		 7897 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7898 if (!ntrig) {
7899 err = -ENOMEM;
7900 goto error;
ff1b6e69 7901 }
ae33bd81
JB		 7902 cfg80211_rdev_free_wowlan(rdev);
7903 rdev->wowlan = ntrig;
ff1b6e69 7904
ae33bd81 7905 set_wakeup:
6d52563f 7906 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 7907 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 7908
ff1b6e69
JB		 7909 return 0;
7910 error:
7911 for (i = 0; i < new_triggers.n_patterns; i++)
7912 kfree(new_triggers.patterns[i].mask);
7913 kfree(new_triggers.patterns);
2a0e047e
JB		 7914 if (new_triggers.tcp && new_triggers.tcp->sock)
7915 sock_release(new_triggers.tcp->sock);
7916 kfree(new_triggers.tcp);
ff1b6e69
JB		 7917 return err;
7918}
dfb89c56 7919#endif
ff1b6e69 7920
e5497d76
JB		 7921static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7922{
7923 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7924 struct net_device *dev = info->user_ptr[1];
7925 struct wireless_dev *wdev = dev->ieee80211_ptr;
7926 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7927 struct cfg80211_gtk_rekey_data rekey_data;
7928 int err;
7929
7930 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7931 return -EINVAL;
7932
7933 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7934 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7935 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7936 nl80211_rekey_policy);
7937 if (err)
7938 return err;
7939
7940 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7941 return -ERANGE;
7942 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7943 return -ERANGE;
7944 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7945 return -ERANGE;
7946
7947 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7948 NL80211_KEK_LEN);
7949 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7950 NL80211_KCK_LEN);
7951 memcpy(rekey_data.replay_ctr,
7952 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7953 NL80211_REPLAY_CTR_LEN);
7954
7955 wdev_lock(wdev);
7956 if (!wdev->current_bss) {
7957 err = -ENOTCONN;
7958 goto out;
7959 }
7960
7961 if (!rdev->ops->set_rekey_data) {
7962 err = -EOPNOTSUPP;
7963 goto out;
7964 }
7965
e35e4d28 7966 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7967 out:
7968 wdev_unlock(wdev);
7969 return err;
7970}
7971
28946da7
JB		 7972static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7973 struct genl_info *info)
7974{
7975 struct net_device *dev = info->user_ptr[1];
7976 struct wireless_dev *wdev = dev->ieee80211_ptr;
7977
7978 if (wdev->iftype != NL80211_IFTYPE_AP &&
7979 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7980 return -EINVAL;
7981
15e47304 7982 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7983 return -EBUSY;
7984
15e47304 7985 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7986 return 0;
7987}
7988
7f6cf311
JB		 7989static int nl80211_probe_client(struct sk_buff *skb,
7990 struct genl_info *info)
7991{
7992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7993 struct net_device *dev = info->user_ptr[1];
7994 struct wireless_dev *wdev = dev->ieee80211_ptr;
7995 struct sk_buff *msg;
7996 void *hdr;
7997 const u8 *addr;
7998 u64 cookie;
7999 int err;
8000
8001 if (wdev->iftype != NL80211_IFTYPE_AP &&
8002 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8003 return -EOPNOTSUPP;
8004
8005 if (!info->attrs[NL80211_ATTR_MAC])
8006 return -EINVAL;
8007
8008 if (!rdev->ops->probe_client)
8009 return -EOPNOTSUPP;
8010
8011 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8012 if (!msg)
8013 return -ENOMEM;
8014
15e47304 8015 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8016 NL80211_CMD_PROBE_CLIENT);
8017
8018 if (IS_ERR(hdr)) {
8019 err = PTR_ERR(hdr);
8020 goto free_msg;
8021 }
8022
8023 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8024
e35e4d28 8025 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8026 if (err)
8027 goto free_msg;
8028
9360ffd1
DM		 8029 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8030 goto nla_put_failure;
7f6cf311
JB		 8031
8032 genlmsg_end(msg, hdr);
8033
8034 return genlmsg_reply(msg, info);
8035
8036 nla_put_failure:
8037 err = -ENOBUFS;
8038 free_msg:
8039 nlmsg_free(msg);
8040 return err;
8041}
8042
5e760230
JB		 8043static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8044{
8045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8046 struct cfg80211_beacon_registration *reg, *nreg;
8047 int rv;
5e760230
JB		 8048
8049 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8050 return -EOPNOTSUPP;
8051
37c73b5f
BG		 8052 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8053 if (!nreg)
8054 return -ENOMEM;
8055
8056 /* First, check if already registered. */
8057 spin_lock_bh(&rdev->beacon_registrations_lock);
8058 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8059 if (reg->nlportid == info->snd_portid) {
8060 rv = -EALREADY;
8061 goto out_err;
8062 }
8063 }
8064 /* Add it to the list */
8065 nreg->nlportid = info->snd_portid;
8066 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8067
37c73b5f 8068 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8069
8070 return 0;
37c73b5f
BG		 8071out_err:
8072 spin_unlock_bh(&rdev->beacon_registrations_lock);
8073 kfree(nreg);
8074 return rv;
5e760230
JB		 8075}
8076
98104fde
JB		 8077static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8078{
8079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8080 struct wireless_dev *wdev = info->user_ptr[1];
8081 int err;
8082
8083 if (!rdev->ops->start_p2p_device)
8084 return -EOPNOTSUPP;
8085
8086 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8087 return -EOPNOTSUPP;
8088
8089 if (wdev->p2p_started)
8090 return 0;
8091
8092 mutex_lock(&rdev->devlist_mtx);
8093 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8094 mutex_unlock(&rdev->devlist_mtx);
8095 if (err)
8096 return err;
8097
eeb126e9 8098 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8099 if (err)
8100 return err;
8101
8102 wdev->p2p_started = true;
8103 mutex_lock(&rdev->devlist_mtx);
8104 rdev->opencount++;
8105 mutex_unlock(&rdev->devlist_mtx);
8106
8107 return 0;
8108}
8109
8110static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8111{
8112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8113 struct wireless_dev *wdev = info->user_ptr[1];
8114
8115 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8116 return -EOPNOTSUPP;
8117
8118 if (!rdev->ops->stop_p2p_device)
8119 return -EOPNOTSUPP;
8120
8121 if (!wdev->p2p_started)
8122 return 0;
8123
eeb126e9 8124 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 8125 wdev->p2p_started = false;
8126
8127 mutex_lock(&rdev->devlist_mtx);
8128 rdev->opencount--;
8129 mutex_unlock(&rdev->devlist_mtx);
8130
8131 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
8132 rdev->scan_req->aborted = true;
8133 ___cfg80211_scan_done(rdev, true);
8134 }
8135
8136 return 0;
8137}
8138
3713b4e3
JB		 8139static int nl80211_get_protocol_features(struct sk_buff *skb,
8140 struct genl_info *info)
8141{
8142 void *hdr;
8143 struct sk_buff *msg;
8144
8145 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8146 if (!msg)
8147 return -ENOMEM;
8148
8149 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8150 NL80211_CMD_GET_PROTOCOL_FEATURES);
8151 if (!hdr)
8152 goto nla_put_failure;
8153
8154 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8155 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8156 goto nla_put_failure;
8157
8158 genlmsg_end(msg, hdr);
8159 return genlmsg_reply(msg, info);
8160
8161 nla_put_failure:
8162 kfree_skb(msg);
8163 return -ENOBUFS;
8164}
8165
355199e0
JM		 8166static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8167{
8168 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8169 struct cfg80211_update_ft_ies_params ft_params;
8170 struct net_device *dev = info->user_ptr[1];
8171
8172 if (!rdev->ops->update_ft_ies)
8173 return -EOPNOTSUPP;
8174
8175 if (!info->attrs[NL80211_ATTR_MDID] ||
8176 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8177 return -EINVAL;
8178
8179 memset(&ft_params, 0, sizeof(ft_params));
8180 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8181 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8182 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8183
8184 return rdev_update_ft_ies(rdev, dev, &ft_params);
8185}
8186
4c476991
JB		 8187#define NL80211_FLAG_NEED_WIPHY 0x01
8188#define NL80211_FLAG_NEED_NETDEV 0x02
8189#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8190#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8191#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8192 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8193#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8194/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8195#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8196 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8197
8198static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8199 struct genl_info *info)
8200{
8201 struct cfg80211_registered_device *rdev;
89a54e48 8202 struct wireless_dev *wdev;
4c476991 8203 struct net_device *dev;
4c476991
JB		 8204 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8205
8206 if (rtnl)
8207 rtnl_lock();
8208
8209 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8210 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8211 if (IS_ERR(rdev)) {
8212 if (rtnl)
8213 rtnl_unlock();
8214 return PTR_ERR(rdev);
8215 }
8216 info->user_ptr[0] = rdev;
1bf614ef
JB		 8217 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8218 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 8219 mutex_lock(&cfg80211_mutex);
8220 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8221 info->attrs);
8222 if (IS_ERR(wdev)) {
8223 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 8224 if (rtnl)
8225 rtnl_unlock();
89a54e48 8226 return PTR_ERR(wdev);
4c476991 8227 }
89a54e48 8228
89a54e48
JB		 8229 dev = wdev->netdev;
8230 rdev = wiphy_to_dev(wdev->wiphy);
8231
1bf614ef
JB		 8232 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8233 if (!dev) {
8234 mutex_unlock(&cfg80211_mutex);
8235 if (rtnl)
8236 rtnl_unlock();
8237 return -EINVAL;
8238 }
8239
8240 info->user_ptr[1] = dev;
8241 } else {
8242 info->user_ptr[1] = wdev;
41265714 8243 }
1bf614ef
JB		 8244
8245 if (dev) {
8246 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8247 !netif_running(dev)) {
8248 mutex_unlock(&cfg80211_mutex);
8249 if (rtnl)
8250 rtnl_unlock();
8251 return -ENETDOWN;
8252 }
8253
8254 dev_hold(dev);
98104fde
JB		 8255 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8256 if (!wdev->p2p_started) {
8257 mutex_unlock(&cfg80211_mutex);
8258 if (rtnl)
8259 rtnl_unlock();
8260 return -ENETDOWN;
8261 }
41265714 8262 }
89a54e48 8263
89a54e48
JB		 8264 cfg80211_lock_rdev(rdev);
8265
8266 mutex_unlock(&cfg80211_mutex);
8267
4c476991 8268 info->user_ptr[0] = rdev;
4c476991
JB		 8269 }
8270
8271 return 0;
8272}
8273
8274static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8275 struct genl_info *info)
8276{
8277 if (info->user_ptr[0])
8278 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 8279 if (info->user_ptr[1]) {
8280 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8281 struct wireless_dev *wdev = info->user_ptr[1];
8282
8283 if (wdev->netdev)
8284 dev_put(wdev->netdev);
8285 } else {
8286 dev_put(info->user_ptr[1]);
8287 }
8288 }
4c476991
JB		 8289 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8290 rtnl_unlock();
8291}
8292
55682965
JB		 8293static struct genl_ops nl80211_ops[] = {
8294 {
8295 .cmd = NL80211_CMD_GET_WIPHY,
8296 .doit = nl80211_get_wiphy,
8297 .dumpit = nl80211_dump_wiphy,
8298 .policy = nl80211_policy,
8299 /* can be retrieved by unprivileged users */
4c476991 8300 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 8301 },
8302 {
8303 .cmd = NL80211_CMD_SET_WIPHY,
8304 .doit = nl80211_set_wiphy,
8305 .policy = nl80211_policy,
8306 .flags = GENL_ADMIN_PERM,
4c476991 8307 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8308 },
8309 {
8310 .cmd = NL80211_CMD_GET_INTERFACE,
8311 .doit = nl80211_get_interface,
8312 .dumpit = nl80211_dump_interface,
8313 .policy = nl80211_policy,
8314 /* can be retrieved by unprivileged users */
72fb2abc 8315 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 8316 },
8317 {
8318 .cmd = NL80211_CMD_SET_INTERFACE,
8319 .doit = nl80211_set_interface,
8320 .policy = nl80211_policy,
8321 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8322 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8323 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8324 },
8325 {
8326 .cmd = NL80211_CMD_NEW_INTERFACE,
8327 .doit = nl80211_new_interface,
8328 .policy = nl80211_policy,
8329 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8330 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8331 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8332 },
8333 {
8334 .cmd = NL80211_CMD_DEL_INTERFACE,
8335 .doit = nl80211_del_interface,
8336 .policy = nl80211_policy,
41ade00f 8337 .flags = GENL_ADMIN_PERM,
84efbb84 8338 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8339 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8340 },
8341 {
8342 .cmd = NL80211_CMD_GET_KEY,
8343 .doit = nl80211_get_key,
8344 .policy = nl80211_policy,
8345 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8346 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8347 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8348 },
8349 {
8350 .cmd = NL80211_CMD_SET_KEY,
8351 .doit = nl80211_set_key,
8352 .policy = nl80211_policy,
8353 .flags = GENL_ADMIN_PERM,
41265714 8354 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8355 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8356 },
8357 {
8358 .cmd = NL80211_CMD_NEW_KEY,
8359 .doit = nl80211_new_key,
8360 .policy = nl80211_policy,
8361 .flags = GENL_ADMIN_PERM,
41265714 8362 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8363 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8364 },
8365 {
8366 .cmd = NL80211_CMD_DEL_KEY,
8367 .doit = nl80211_del_key,
8368 .policy = nl80211_policy,
55682965 8369 .flags = GENL_ADMIN_PERM,
41265714 8370 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8371 NL80211_FLAG_NEED_RTNL,
55682965 8372 },
ed1b6cc7
JB		 8373 {
8374 .cmd = NL80211_CMD_SET_BEACON,
8375 .policy = nl80211_policy,
8376 .flags = GENL_ADMIN_PERM,
8860020e 8377 .doit = nl80211_set_beacon,
2b5f8b0b 8378 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8379 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8380 },
8381 {
8860020e 8382 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8383 .policy = nl80211_policy,
8384 .flags = GENL_ADMIN_PERM,
8860020e 8385 .doit = nl80211_start_ap,
2b5f8b0b 8386 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8387 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8388 },
8389 {
8860020e 8390 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8391 .policy = nl80211_policy,
8392 .flags = GENL_ADMIN_PERM,
8860020e 8393 .doit = nl80211_stop_ap,
2b5f8b0b 8394 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8395 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8396 },
5727ef1b
JB		 8397 {
8398 .cmd = NL80211_CMD_GET_STATION,
8399 .doit = nl80211_get_station,
2ec600d6 8400 .dumpit = nl80211_dump_station,
5727ef1b 8401 .policy = nl80211_policy,
4c476991
JB		 8402 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8403 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8404 },
8405 {
8406 .cmd = NL80211_CMD_SET_STATION,
8407 .doit = nl80211_set_station,
8408 .policy = nl80211_policy,
8409 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8410 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8411 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8412 },
8413 {
8414 .cmd = NL80211_CMD_NEW_STATION,
8415 .doit = nl80211_new_station,
8416 .policy = nl80211_policy,
8417 .flags = GENL_ADMIN_PERM,
41265714 8418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8419 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8420 },
8421 {
8422 .cmd = NL80211_CMD_DEL_STATION,
8423 .doit = nl80211_del_station,
8424 .policy = nl80211_policy,
2ec600d6 8425 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8427 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8428 },
8429 {
8430 .cmd = NL80211_CMD_GET_MPATH,
8431 .doit = nl80211_get_mpath,
8432 .dumpit = nl80211_dump_mpath,
8433 .policy = nl80211_policy,
8434 .flags = GENL_ADMIN_PERM,
41265714 8435 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8436 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8437 },
8438 {
8439 .cmd = NL80211_CMD_SET_MPATH,
8440 .doit = nl80211_set_mpath,
8441 .policy = nl80211_policy,
8442 .flags = GENL_ADMIN_PERM,
41265714 8443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8444 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8445 },
8446 {
8447 .cmd = NL80211_CMD_NEW_MPATH,
8448 .doit = nl80211_new_mpath,
8449 .policy = nl80211_policy,
8450 .flags = GENL_ADMIN_PERM,
41265714 8451 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8452 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8453 },
8454 {
8455 .cmd = NL80211_CMD_DEL_MPATH,
8456 .doit = nl80211_del_mpath,
8457 .policy = nl80211_policy,
9f1ba906 8458 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8459 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8460 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8461 },
8462 {
8463 .cmd = NL80211_CMD_SET_BSS,
8464 .doit = nl80211_set_bss,
8465 .policy = nl80211_policy,
b2e1b302 8466 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8467 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8468 NL80211_FLAG_NEED_RTNL,
b2e1b302 8469 },
f130347c
LR		 8470 {
8471 .cmd = NL80211_CMD_GET_REG,
8472 .doit = nl80211_get_reg,
8473 .policy = nl80211_policy,
8474 /* can be retrieved by unprivileged users */
8475 },
b2e1b302
LR		 8476 {
8477 .cmd = NL80211_CMD_SET_REG,
8478 .doit = nl80211_set_reg,
8479 .policy = nl80211_policy,
8480 .flags = GENL_ADMIN_PERM,
8481 },
8482 {
8483 .cmd = NL80211_CMD_REQ_SET_REG,
8484 .doit = nl80211_req_set_reg,
8485 .policy = nl80211_policy,
93da9cc1 8486 .flags = GENL_ADMIN_PERM,
8487 },
8488 {
24bdd9f4
JC		 8489 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8490 .doit = nl80211_get_mesh_config,
93da9cc1 8491 .policy = nl80211_policy,
8492 /* can be retrieved by unprivileged users */
2b5f8b0b 8493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8494 NL80211_FLAG_NEED_RTNL,
93da9cc1 8495 },
8496 {
24bdd9f4
JC		 8497 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8498 .doit = nl80211_update_mesh_config,
93da9cc1 8499 .policy = nl80211_policy,
9aed3cc1 8500 .flags = GENL_ADMIN_PERM,
29cbe68c 8501 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8502 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8503 },
2a519311
JB		 8504 {
8505 .cmd = NL80211_CMD_TRIGGER_SCAN,
8506 .doit = nl80211_trigger_scan,
8507 .policy = nl80211_policy,
8508 .flags = GENL_ADMIN_PERM,
fd014284 8509 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8510 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8511 },
8512 {
8513 .cmd = NL80211_CMD_GET_SCAN,
8514 .policy = nl80211_policy,
8515 .dumpit = nl80211_dump_scan,
8516 },
807f8a8c
LC		 8517 {
8518 .cmd = NL80211_CMD_START_SCHED_SCAN,
8519 .doit = nl80211_start_sched_scan,
8520 .policy = nl80211_policy,
8521 .flags = GENL_ADMIN_PERM,
8522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8523 NL80211_FLAG_NEED_RTNL,
8524 },
8525 {
8526 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8527 .doit = nl80211_stop_sched_scan,
8528 .policy = nl80211_policy,
8529 .flags = GENL_ADMIN_PERM,
8530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8531 NL80211_FLAG_NEED_RTNL,
8532 },
636a5d36
JM		 8533 {
8534 .cmd = NL80211_CMD_AUTHENTICATE,
8535 .doit = nl80211_authenticate,
8536 .policy = nl80211_policy,
8537 .flags = GENL_ADMIN_PERM,
41265714 8538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8539 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8540 },
8541 {
8542 .cmd = NL80211_CMD_ASSOCIATE,
8543 .doit = nl80211_associate,
8544 .policy = nl80211_policy,
8545 .flags = GENL_ADMIN_PERM,
41265714 8546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8547 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8548 },
8549 {
8550 .cmd = NL80211_CMD_DEAUTHENTICATE,
8551 .doit = nl80211_deauthenticate,
8552 .policy = nl80211_policy,
8553 .flags = GENL_ADMIN_PERM,
41265714 8554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8555 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8556 },
8557 {
8558 .cmd = NL80211_CMD_DISASSOCIATE,
8559 .doit = nl80211_disassociate,
8560 .policy = nl80211_policy,
8561 .flags = GENL_ADMIN_PERM,
41265714 8562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8563 NL80211_FLAG_NEED_RTNL,
636a5d36 8564 },
04a773ad
JB		 8565 {
8566 .cmd = NL80211_CMD_JOIN_IBSS,
8567 .doit = nl80211_join_ibss,
8568 .policy = nl80211_policy,
8569 .flags = GENL_ADMIN_PERM,
41265714 8570 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8571 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8572 },
8573 {
8574 .cmd = NL80211_CMD_LEAVE_IBSS,
8575 .doit = nl80211_leave_ibss,
8576 .policy = nl80211_policy,
8577 .flags = GENL_ADMIN_PERM,
41265714 8578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8579 NL80211_FLAG_NEED_RTNL,
04a773ad 8580 },
aff89a9b
JB		 8581#ifdef CONFIG_NL80211_TESTMODE
8582 {
8583 .cmd = NL80211_CMD_TESTMODE,
8584 .doit = nl80211_testmode_do,
71063f0e 8585 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8586 .policy = nl80211_policy,
8587 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8588 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8589 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8590 },
8591#endif
b23aa676
SO		 8592 {
8593 .cmd = NL80211_CMD_CONNECT,
8594 .doit = nl80211_connect,
8595 .policy = nl80211_policy,
8596 .flags = GENL_ADMIN_PERM,
41265714 8597 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8598 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8599 },
8600 {
8601 .cmd = NL80211_CMD_DISCONNECT,
8602 .doit = nl80211_disconnect,
8603 .policy = nl80211_policy,
8604 .flags = GENL_ADMIN_PERM,
41265714 8605 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8606 NL80211_FLAG_NEED_RTNL,
b23aa676 8607 },
463d0183
JB		 8608 {
8609 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8610 .doit = nl80211_wiphy_netns,
8611 .policy = nl80211_policy,
8612 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8613 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8614 NL80211_FLAG_NEED_RTNL,
463d0183 8615 },
61fa713c
HS		 8616 {
8617 .cmd = NL80211_CMD_GET_SURVEY,
8618 .policy = nl80211_policy,
8619 .dumpit = nl80211_dump_survey,
8620 },
67fbb16b
SO		 8621 {
8622 .cmd = NL80211_CMD_SET_PMKSA,
8623 .doit = nl80211_setdel_pmksa,
8624 .policy = nl80211_policy,
8625 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8627 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8628 },
8629 {
8630 .cmd = NL80211_CMD_DEL_PMKSA,
8631 .doit = nl80211_setdel_pmksa,
8632 .policy = nl80211_policy,
8633 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8635 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8636 },
8637 {
8638 .cmd = NL80211_CMD_FLUSH_PMKSA,
8639 .doit = nl80211_flush_pmksa,
8640 .policy = nl80211_policy,
8641 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8643 NL80211_FLAG_NEED_RTNL,
67fbb16b 8644 },
9588bbd5
JM		 8645 {
8646 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8647 .doit = nl80211_remain_on_channel,
8648 .policy = nl80211_policy,
8649 .flags = GENL_ADMIN_PERM,
71bbc994 8650 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8651 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8652 },
8653 {
8654 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8655 .doit = nl80211_cancel_remain_on_channel,
8656 .policy = nl80211_policy,
8657 .flags = GENL_ADMIN_PERM,
71bbc994 8658 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8659 NL80211_FLAG_NEED_RTNL,
9588bbd5 8660 },
13ae75b1
JM		 8661 {
8662 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8663 .doit = nl80211_set_tx_bitrate_mask,
8664 .policy = nl80211_policy,
8665 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8666 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8667 NL80211_FLAG_NEED_RTNL,
13ae75b1 8668 },
026331c4 8669 {
2e161f78
JB		 8670 .cmd = NL80211_CMD_REGISTER_FRAME,
8671 .doit = nl80211_register_mgmt,
026331c4
JM		 8672 .policy = nl80211_policy,
8673 .flags = GENL_ADMIN_PERM,
71bbc994 8674 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8675 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8676 },
8677 {
2e161f78
JB		 8678 .cmd = NL80211_CMD_FRAME,
8679 .doit = nl80211_tx_mgmt,
026331c4 8680 .policy = nl80211_policy,
f7ca38df 8681 .flags = GENL_ADMIN_PERM,
71bbc994 8682 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8683 NL80211_FLAG_NEED_RTNL,
8684 },
8685 {
8686 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8687 .doit = nl80211_tx_mgmt_cancel_wait,
8688 .policy = nl80211_policy,
026331c4 8689 .flags = GENL_ADMIN_PERM,
71bbc994 8690 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8691 NL80211_FLAG_NEED_RTNL,
026331c4 8692 },
ffb9eb3d
KV		 8693 {
8694 .cmd = NL80211_CMD_SET_POWER_SAVE,
8695 .doit = nl80211_set_power_save,
8696 .policy = nl80211_policy,
8697 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8698 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8699 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8700 },
8701 {
8702 .cmd = NL80211_CMD_GET_POWER_SAVE,
8703 .doit = nl80211_get_power_save,
8704 .policy = nl80211_policy,
8705 /* can be retrieved by unprivileged users */
4c476991
JB		 8706 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8707 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8708 },
d6dc1a38
JO		 8709 {
8710 .cmd = NL80211_CMD_SET_CQM,
8711 .doit = nl80211_set_cqm,
8712 .policy = nl80211_policy,
8713 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8714 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8715 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8716 },
f444de05
JB		 8717 {
8718 .cmd = NL80211_CMD_SET_CHANNEL,
8719 .doit = nl80211_set_channel,
8720 .policy = nl80211_policy,
8721 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8722 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8723 NL80211_FLAG_NEED_RTNL,
f444de05 8724 },
e8347eba
BJ		 8725 {
8726 .cmd = NL80211_CMD_SET_WDS_PEER,
8727 .doit = nl80211_set_wds_peer,
8728 .policy = nl80211_policy,
8729 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8730 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8731 NL80211_FLAG_NEED_RTNL,
e8347eba 8732 },
29cbe68c
JB		 8733 {
8734 .cmd = NL80211_CMD_JOIN_MESH,
8735 .doit = nl80211_join_mesh,
8736 .policy = nl80211_policy,
8737 .flags = GENL_ADMIN_PERM,
8738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8739 NL80211_FLAG_NEED_RTNL,
8740 },
8741 {
8742 .cmd = NL80211_CMD_LEAVE_MESH,
8743 .doit = nl80211_leave_mesh,
8744 .policy = nl80211_policy,
8745 .flags = GENL_ADMIN_PERM,
8746 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8747 NL80211_FLAG_NEED_RTNL,
8748 },
dfb89c56 8749#ifdef CONFIG_PM
ff1b6e69
JB		 8750 {
8751 .cmd = NL80211_CMD_GET_WOWLAN,
8752 .doit = nl80211_get_wowlan,
8753 .policy = nl80211_policy,
8754 /* can be retrieved by unprivileged users */
8755 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8756 NL80211_FLAG_NEED_RTNL,
8757 },
8758 {
8759 .cmd = NL80211_CMD_SET_WOWLAN,
8760 .doit = nl80211_set_wowlan,
8761 .policy = nl80211_policy,
8762 .flags = GENL_ADMIN_PERM,
8763 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8764 NL80211_FLAG_NEED_RTNL,
8765 },
dfb89c56 8766#endif
e5497d76
JB		 8767 {
8768 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8769 .doit = nl80211_set_rekey_data,
8770 .policy = nl80211_policy,
8771 .flags = GENL_ADMIN_PERM,
8772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8773 NL80211_FLAG_NEED_RTNL,
8774 },
109086ce
AN		 8775 {
8776 .cmd = NL80211_CMD_TDLS_MGMT,
8777 .doit = nl80211_tdls_mgmt,
8778 .policy = nl80211_policy,
8779 .flags = GENL_ADMIN_PERM,
8780 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8781 NL80211_FLAG_NEED_RTNL,
8782 },
8783 {
8784 .cmd = NL80211_CMD_TDLS_OPER,
8785 .doit = nl80211_tdls_oper,
8786 .policy = nl80211_policy,
8787 .flags = GENL_ADMIN_PERM,
8788 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8789 NL80211_FLAG_NEED_RTNL,
8790 },
28946da7
JB		 8791 {
8792 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8793 .doit = nl80211_register_unexpected_frame,
8794 .policy = nl80211_policy,
8795 .flags = GENL_ADMIN_PERM,
8796 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8797 NL80211_FLAG_NEED_RTNL,
8798 },
7f6cf311
JB		 8799 {
8800 .cmd = NL80211_CMD_PROBE_CLIENT,
8801 .doit = nl80211_probe_client,
8802 .policy = nl80211_policy,
8803 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8804 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8805 NL80211_FLAG_NEED_RTNL,
8806 },
5e760230
JB		 8807 {
8808 .cmd = NL80211_CMD_REGISTER_BEACONS,
8809 .doit = nl80211_register_beacons,
8810 .policy = nl80211_policy,
8811 .flags = GENL_ADMIN_PERM,
8812 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8813 NL80211_FLAG_NEED_RTNL,
8814 },
1d9d9213
SW		 8815 {
8816 .cmd = NL80211_CMD_SET_NOACK_MAP,
8817 .doit = nl80211_set_noack_map,
8818 .policy = nl80211_policy,
8819 .flags = GENL_ADMIN_PERM,
8820 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8821 NL80211_FLAG_NEED_RTNL,
8822 },
98104fde
JB		 8823 {
8824 .cmd = NL80211_CMD_START_P2P_DEVICE,
8825 .doit = nl80211_start_p2p_device,
8826 .policy = nl80211_policy,
8827 .flags = GENL_ADMIN_PERM,
8828 .internal_flags = NL80211_FLAG_NEED_WDEV |
8829 NL80211_FLAG_NEED_RTNL,
8830 },
8831 {
8832 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8833 .doit = nl80211_stop_p2p_device,
8834 .policy = nl80211_policy,
8835 .flags = GENL_ADMIN_PERM,
8836 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8837 NL80211_FLAG_NEED_RTNL,
8838 },
f4e583c8
AQ		 8839 {
8840 .cmd = NL80211_CMD_SET_MCAST_RATE,
8841 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8842 .policy = nl80211_policy,
8843 .flags = GENL_ADMIN_PERM,
8844 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8845 NL80211_FLAG_NEED_RTNL,
8846 },
8847 {
8848 .cmd = NL80211_CMD_SET_MAC_ACL,
8849 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8850 .policy = nl80211_policy,
8851 .flags = GENL_ADMIN_PERM,
8852 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8853 NL80211_FLAG_NEED_RTNL,
8854 },
04f39047
SW		 8855 {
8856 .cmd = NL80211_CMD_RADAR_DETECT,
8857 .doit = nl80211_start_radar_detection,
8858 .policy = nl80211_policy,
8859 .flags = GENL_ADMIN_PERM,
8860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8861 NL80211_FLAG_NEED_RTNL,
8862 },
3713b4e3
JB		 8863 {
8864 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8865 .doit = nl80211_get_protocol_features,
8866 .policy = nl80211_policy,
8867 },
355199e0
JM		 8868 {
8869 .cmd = NL80211_CMD_UPDATE_FT_IES,
8870 .doit = nl80211_update_ft_ies,
8871 .policy = nl80211_policy,
8872 .flags = GENL_ADMIN_PERM,
8873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8874 NL80211_FLAG_NEED_RTNL,
8875 },
55682965 8876};
9588bbd5 8877
6039f6d2
JM		 8878static struct genl_multicast_group nl80211_mlme_mcgrp = {
8879 .name = "mlme",
8880};
55682965
JB		 8881
8882/* multicast groups */
8883static struct genl_multicast_group nl80211_config_mcgrp = {
8884 .name = "config",
8885};
2a519311
JB		 8886static struct genl_multicast_group nl80211_scan_mcgrp = {
8887 .name = "scan",
8888};
73d54c9e
LR		 8889static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8890 .name = "regulatory",
8891};
55682965
JB		 8892
8893/* notification functions */
8894
8895void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8896{
8897 struct sk_buff *msg;
8898
fd2120ca 8899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8900 if (!msg)
8901 return;
8902
3713b4e3
JB		 8903 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
8904 false, NULL, NULL, NULL) < 0) {
55682965
JB		 8905 nlmsg_free(msg);
8906 return;
8907 }
8908
463d0183
JB		 8909 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8910 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 8911}
8912
362a415d
JB		 8913static int nl80211_add_scan_req(struct sk_buff *msg,
8914 struct cfg80211_registered_device *rdev)
8915{
8916 struct cfg80211_scan_request *req = rdev->scan_req;
8917 struct nlattr *nest;
8918 int i;
8919
667503dd
JB		 8920 ASSERT_RDEV_LOCK(rdev);
8921
362a415d
JB		 8922 if (WARN_ON(!req))
8923 return 0;
8924
8925 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8926 if (!nest)
8927 goto nla_put_failure;
9360ffd1
DM		 8928 for (i = 0; i < req->n_ssids; i++) {
8929 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8930 goto nla_put_failure;
8931 }
362a415d
JB		 8932 nla_nest_end(msg, nest);
8933
8934 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8935 if (!nest)
8936 goto nla_put_failure;
9360ffd1
DM		 8937 for (i = 0; i < req->n_channels; i++) {
8938 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8939 goto nla_put_failure;
8940 }
362a415d
JB		 8941 nla_nest_end(msg, nest);
8942
9360ffd1
DM		 8943 if (req->ie &&
8944 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8945 goto nla_put_failure;
362a415d 8946
ed473771
SL		 8947 if (req->flags)
8948 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8949
362a415d
JB		 8950 return 0;
8951 nla_put_failure:
8952 return -ENOBUFS;
8953}
8954
a538e2d5
JB		 8955static int nl80211_send_scan_msg(struct sk_buff *msg,
8956 struct cfg80211_registered_device *rdev,
fd014284 8957 struct wireless_dev *wdev,
15e47304 8958 u32 portid, u32 seq, int flags,
a538e2d5 8959 u32 cmd)
2a519311
JB		 8960{
8961 void *hdr;
8962
15e47304 8963 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 8964 if (!hdr)
8965 return -1;
8966
9360ffd1 8967 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 8968 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8969 wdev->netdev->ifindex)) ||
8970 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 8971 goto nla_put_failure;
2a519311 8972
362a415d
JB		 8973 /* ignore errors and send incomplete event anyway */
8974 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 8975
8976 return genlmsg_end(msg, hdr);
8977
8978 nla_put_failure:
8979 genlmsg_cancel(msg, hdr);
8980 return -EMSGSIZE;
8981}
8982
807f8a8c
LC		 8983static int
8984nl80211_send_sched_scan_msg(struct sk_buff *msg,
8985 struct cfg80211_registered_device *rdev,
8986 struct net_device *netdev,
15e47304 8987 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 8988{
8989 void *hdr;
8990
15e47304 8991 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 8992 if (!hdr)
8993 return -1;
8994
9360ffd1
DM		 8995 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8996 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8997 goto nla_put_failure;
807f8a8c
LC		 8998
8999 return genlmsg_end(msg, hdr);
9000
9001 nla_put_failure:
9002 genlmsg_cancel(msg, hdr);
9003 return -EMSGSIZE;
9004}
9005
a538e2d5 9006void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9007 struct wireless_dev *wdev)
a538e2d5
JB		 9008{
9009 struct sk_buff *msg;
9010
58050fce 9011 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9012 if (!msg)
9013 return;
9014
fd014284 9015 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9016 NL80211_CMD_TRIGGER_SCAN) < 0) {
9017 nlmsg_free(msg);
9018 return;
9019 }
9020
463d0183
JB		 9021 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9022 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9023}
9024
2a519311 9025void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9026 struct wireless_dev *wdev)
2a519311
JB		 9027{
9028 struct sk_buff *msg;
9029
fd2120ca 9030 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9031 if (!msg)
9032 return;
9033
fd014284 9034 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9035 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9036 nlmsg_free(msg);
9037 return;
9038 }
9039
463d0183
JB		 9040 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9041 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9042}
9043
9044void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9045 struct wireless_dev *wdev)
2a519311
JB		 9046{
9047 struct sk_buff *msg;
9048
fd2120ca 9049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9050 if (!msg)
9051 return;
9052
fd014284 9053 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9054 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9055 nlmsg_free(msg);
9056 return;
9057 }
9058
463d0183
JB		 9059 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9060 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9061}
9062
807f8a8c
LC		 9063void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9064 struct net_device *netdev)
9065{
9066 struct sk_buff *msg;
9067
9068 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9069 if (!msg)
9070 return;
9071
9072 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9073 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9074 nlmsg_free(msg);
9075 return;
9076 }
9077
9078 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9079 nl80211_scan_mcgrp.id, GFP_KERNEL);
9080}
9081
9082void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9083 struct net_device *netdev, u32 cmd)
9084{
9085 struct sk_buff *msg;
9086
58050fce 9087 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9088 if (!msg)
9089 return;
9090
9091 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9092 nlmsg_free(msg);
9093 return;
9094 }
9095
9096 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9097 nl80211_scan_mcgrp.id, GFP_KERNEL);
9098}
9099
73d54c9e
LR		 9100/*
9101 * This can happen on global regulatory changes or device specific settings
9102 * based on custom world regulatory domains.
9103 */
9104void nl80211_send_reg_change_event(struct regulatory_request *request)
9105{
9106 struct sk_buff *msg;
9107 void *hdr;
9108
fd2120ca 9109 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9110 if (!msg)
9111 return;
9112
9113 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9114 if (!hdr) {
9115 nlmsg_free(msg);
9116 return;
9117 }
9118
9119 /* Userspace can always count this one always being set */
9360ffd1
DM		 9120 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9121 goto nla_put_failure;
9122
9123 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9124 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9125 NL80211_REGDOM_TYPE_WORLD))
9126 goto nla_put_failure;
9127 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9128 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9129 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9130 goto nla_put_failure;
9131 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9132 request->intersect) {
9133 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9134 NL80211_REGDOM_TYPE_INTERSECTION))
9135 goto nla_put_failure;
9136 } else {
9137 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9138 NL80211_REGDOM_TYPE_COUNTRY) ||
9139 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9140 request->alpha2))
9141 goto nla_put_failure;
9142 }
9143
f4173766 9144 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9145 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9146 goto nla_put_failure;
73d54c9e 9147
3b7b72ee 9148 genlmsg_end(msg, hdr);
73d54c9e 9149
bc43b28c 9150 rcu_read_lock();
463d0183 9151 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9152 GFP_ATOMIC);
9153 rcu_read_unlock();
73d54c9e
LR		 9154
9155 return;
9156
9157nla_put_failure:
9158 genlmsg_cancel(msg, hdr);
9159 nlmsg_free(msg);
9160}
9161
6039f6d2
JM		 9162static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9163 struct net_device *netdev,
9164 const u8 *buf, size_t len,
e6d6e342 9165 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9166{
9167 struct sk_buff *msg;
9168 void *hdr;
9169
e6d6e342 9170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9171 if (!msg)
9172 return;
9173
9174 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9175 if (!hdr) {
9176 nlmsg_free(msg);
9177 return;
9178 }
9179
9360ffd1
DM		 9180 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9181 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9182 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9183 goto nla_put_failure;
6039f6d2 9184
3b7b72ee 9185 genlmsg_end(msg, hdr);
6039f6d2 9186
463d0183
JB		 9187 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9188 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9189 return;
9190
9191 nla_put_failure:
9192 genlmsg_cancel(msg, hdr);
9193 nlmsg_free(msg);
9194}
9195
9196void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9197 struct net_device *netdev, const u8 *buf,
9198 size_t len, gfp_t gfp)
6039f6d2
JM		 9199{
9200 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9201 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9202}
9203
9204void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9205 struct net_device *netdev, const u8 *buf,
e6d6e342 9206 size_t len, gfp_t gfp)
6039f6d2 9207{
e6d6e342
JB		 9208 nl80211_send_mlme_event(rdev, netdev, buf, len,
9209 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9210}
9211
53b46b84 9212void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9213 struct net_device *netdev, const u8 *buf,
9214 size_t len, gfp_t gfp)
6039f6d2
JM		 9215{
9216 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9217 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9218}
9219
53b46b84
JM		 9220void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9221 struct net_device *netdev, const u8 *buf,
e6d6e342 9222 size_t len, gfp_t gfp)
6039f6d2
JM		 9223{
9224 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9225 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9226}
9227
947add36
JB		 9228void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
9229 size_t len)
cf4e594e 9230{
947add36
JB		 9231 struct wireless_dev *wdev = dev->ieee80211_ptr;
9232 struct wiphy *wiphy = wdev->wiphy;
9233 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9234
9235 trace_cfg80211_send_unprot_deauth(dev);
9236 nl80211_send_mlme_event(rdev, dev, buf, len,
9237 NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
cf4e594e 9238}
947add36 9239EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
cf4e594e 9240
947add36
JB		 9241void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
9242 size_t len)
cf4e594e 9243{
947add36
JB		 9244 struct wireless_dev *wdev = dev->ieee80211_ptr;
9245 struct wiphy *wiphy = wdev->wiphy;
9246 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9247
9248 trace_cfg80211_send_unprot_disassoc(dev);
9249 nl80211_send_mlme_event(rdev, dev, buf, len,
9250 NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
cf4e594e 9251}
947add36 9252EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
cf4e594e 9253
1b06bb40
LR		 9254static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9255 struct net_device *netdev, int cmd,
e6d6e342 9256 const u8 *addr, gfp_t gfp)
1965c853
JM		 9257{
9258 struct sk_buff *msg;
9259 void *hdr;
9260
e6d6e342 9261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9262 if (!msg)
9263 return;
9264
9265 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9266 if (!hdr) {
9267 nlmsg_free(msg);
9268 return;
9269 }
9270
9360ffd1
DM		 9271 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9272 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9273 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9274 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9275 goto nla_put_failure;
1965c853 9276
3b7b72ee 9277 genlmsg_end(msg, hdr);
1965c853 9278
463d0183
JB		 9279 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9280 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9281 return;
9282
9283 nla_put_failure:
9284 genlmsg_cancel(msg, hdr);
9285 nlmsg_free(msg);
9286}
9287
9288void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9289 struct net_device *netdev, const u8 *addr,
9290 gfp_t gfp)
1965c853
JM		 9291{
9292 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9293 addr, gfp);
1965c853
JM		 9294}
9295
9296void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9297 struct net_device *netdev, const u8 *addr,
9298 gfp_t gfp)
1965c853 9299{
e6d6e342
JB		 9300 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9301 addr, gfp);
1965c853
JM		 9302}
9303
b23aa676
SO		 9304void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9305 struct net_device *netdev, const u8 *bssid,
9306 const u8 *req_ie, size_t req_ie_len,
9307 const u8 *resp_ie, size_t resp_ie_len,
9308 u16 status, gfp_t gfp)
9309{
9310 struct sk_buff *msg;
9311 void *hdr;
9312
58050fce 9313 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9314 if (!msg)
9315 return;
9316
9317 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9318 if (!hdr) {
9319 nlmsg_free(msg);
9320 return;
9321 }
9322
9360ffd1
DM		 9323 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9324 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9325 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9326 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9327 (req_ie &&
9328 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9329 (resp_ie &&
9330 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9331 goto nla_put_failure;
b23aa676 9332
3b7b72ee 9333 genlmsg_end(msg, hdr);
b23aa676 9334
463d0183
JB		 9335 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9336 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9337 return;
9338
9339 nla_put_failure:
9340 genlmsg_cancel(msg, hdr);
9341 nlmsg_free(msg);
9342
9343}
9344
9345void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9346 struct net_device *netdev, const u8 *bssid,
9347 const u8 *req_ie, size_t req_ie_len,
9348 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9349{
9350 struct sk_buff *msg;
9351 void *hdr;
9352
58050fce 9353 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9354 if (!msg)
9355 return;
9356
9357 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9358 if (!hdr) {
9359 nlmsg_free(msg);
9360 return;
9361 }
9362
9360ffd1
DM		 9363 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9364 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9365 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9366 (req_ie &&
9367 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9368 (resp_ie &&
9369 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9370 goto nla_put_failure;
b23aa676 9371
3b7b72ee 9372 genlmsg_end(msg, hdr);
b23aa676 9373
463d0183
JB		 9374 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9375 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9376 return;
9377
9378 nla_put_failure:
9379 genlmsg_cancel(msg, hdr);
9380 nlmsg_free(msg);
9381
9382}
9383
9384void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9385 struct net_device *netdev, u16 reason,
667503dd 9386 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9387{
9388 struct sk_buff *msg;
9389 void *hdr;
9390
58050fce 9391 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9392 if (!msg)
9393 return;
9394
9395 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9396 if (!hdr) {
9397 nlmsg_free(msg);
9398 return;
9399 }
9400
9360ffd1
DM		 9401 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9402 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9403 (from_ap && reason &&
9404 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9405 (from_ap &&
9406 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9407 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9408 goto nla_put_failure;
b23aa676 9409
3b7b72ee 9410 genlmsg_end(msg, hdr);
b23aa676 9411
463d0183
JB		 9412 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9413 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9414 return;
9415
9416 nla_put_failure:
9417 genlmsg_cancel(msg, hdr);
9418 nlmsg_free(msg);
9419
9420}
9421
04a773ad
JB		 9422void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9423 struct net_device *netdev, const u8 *bssid,
9424 gfp_t gfp)
9425{
9426 struct sk_buff *msg;
9427 void *hdr;
9428
fd2120ca 9429 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9430 if (!msg)
9431 return;
9432
9433 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9434 if (!hdr) {
9435 nlmsg_free(msg);
9436 return;
9437 }
9438
9360ffd1
DM		 9439 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9440 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9441 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9442 goto nla_put_failure;
04a773ad 9443
3b7b72ee 9444 genlmsg_end(msg, hdr);
04a773ad 9445
463d0183
JB		 9446 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9447 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9448 return;
9449
9450 nla_put_failure:
9451 genlmsg_cancel(msg, hdr);
9452 nlmsg_free(msg);
9453}
9454
947add36
JB		 9455void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9456 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9457{
947add36
JB		 9458 struct wireless_dev *wdev = dev->ieee80211_ptr;
9459 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9460 struct sk_buff *msg;
9461 void *hdr;
9462
947add36
JB		 9463 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9464 return;
9465
9466 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9467
c93b5e71
JC		 9468 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9469 if (!msg)
9470 return;
9471
9472 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9473 if (!hdr) {
9474 nlmsg_free(msg);
9475 return;
9476 }
9477
9360ffd1 9478 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9479 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9480 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9481 (ie_len && ie &&
9482 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9483 goto nla_put_failure;
c93b5e71 9484
3b7b72ee 9485 genlmsg_end(msg, hdr);
c93b5e71
JC		 9486
9487 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9488 nl80211_mlme_mcgrp.id, gfp);
9489 return;
9490
9491 nla_put_failure:
9492 genlmsg_cancel(msg, hdr);
9493 nlmsg_free(msg);
9494}
947add36 9495EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9496
a3b8b056
JM		 9497void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9498 struct net_device *netdev, const u8 *addr,
9499 enum nl80211_key_type key_type, int key_id,
e6d6e342 9500 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9501{
9502 struct sk_buff *msg;
9503 void *hdr;
9504
e6d6e342 9505 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9506 if (!msg)
9507 return;
9508
9509 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9510 if (!hdr) {
9511 nlmsg_free(msg);
9512 return;
9513 }
9514
9360ffd1
DM		 9515 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9516 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9517 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9518 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9519 (key_id != -1 &&
9520 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9521 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9522 goto nla_put_failure;
a3b8b056 9523
3b7b72ee 9524 genlmsg_end(msg, hdr);
a3b8b056 9525
463d0183
JB		 9526 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9527 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9528 return;
9529
9530 nla_put_failure:
9531 genlmsg_cancel(msg, hdr);
9532 nlmsg_free(msg);
9533}
9534
6bad8766
LR		 9535void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9536 struct ieee80211_channel *channel_before,
9537 struct ieee80211_channel *channel_after)
9538{
9539 struct sk_buff *msg;
9540 void *hdr;
9541 struct nlattr *nl_freq;
9542
fd2120ca 9543 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9544 if (!msg)
9545 return;
9546
9547 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9548 if (!hdr) {
9549 nlmsg_free(msg);
9550 return;
9551 }
9552
9553 /*
9554 * Since we are applying the beacon hint to a wiphy we know its
9555 * wiphy_idx is valid
9556 */
9360ffd1
DM		 9557 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9558 goto nla_put_failure;
6bad8766
LR		 9559
9560 /* Before */
9561 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9562 if (!nl_freq)
9563 goto nla_put_failure;
cdc89b97 9564 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 9565 goto nla_put_failure;
9566 nla_nest_end(msg, nl_freq);
9567
9568 /* After */
9569 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9570 if (!nl_freq)
9571 goto nla_put_failure;
cdc89b97 9572 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 9573 goto nla_put_failure;
9574 nla_nest_end(msg, nl_freq);
9575
3b7b72ee 9576 genlmsg_end(msg, hdr);
6bad8766 9577
463d0183
JB		 9578 rcu_read_lock();
9579 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9580 GFP_ATOMIC);
9581 rcu_read_unlock();
6bad8766
LR		 9582
9583 return;
9584
9585nla_put_failure:
9586 genlmsg_cancel(msg, hdr);
9587 nlmsg_free(msg);
9588}
9589
9588bbd5
JM		 9590static void nl80211_send_remain_on_chan_event(
9591 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9592 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9593 struct ieee80211_channel *chan,
9588bbd5
JM		 9594 unsigned int duration, gfp_t gfp)
9595{
9596 struct sk_buff *msg;
9597 void *hdr;
9598
9599 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9600 if (!msg)
9601 return;
9602
9603 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9604 if (!hdr) {
9605 nlmsg_free(msg);
9606 return;
9607 }
9608
9360ffd1 9609 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9610 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9611 wdev->netdev->ifindex)) ||
00f53350 9612 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9613 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9614 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9615 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9616 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9617 goto nla_put_failure;
9588bbd5 9618
9360ffd1
DM		 9619 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9620 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9621 goto nla_put_failure;
9588bbd5 9622
3b7b72ee 9623 genlmsg_end(msg, hdr);
9588bbd5
JM		 9624
9625 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9626 nl80211_mlme_mcgrp.id, gfp);
9627 return;
9628
9629 nla_put_failure:
9630 genlmsg_cancel(msg, hdr);
9631 nlmsg_free(msg);
9632}
9633
947add36
JB		 9634void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9635 struct ieee80211_channel *chan,
9636 unsigned int duration, gfp_t gfp)
9588bbd5 9637{
947add36
JB		 9638 struct wiphy *wiphy = wdev->wiphy;
9639 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9640
9641 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 9642 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9643 rdev, wdev, cookie, chan,
42d97a59 9644 duration, gfp);
9588bbd5 9645}
947add36 9646EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 9647
947add36
JB		 9648void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9649 struct ieee80211_channel *chan,
9650 gfp_t gfp)
9588bbd5 9651{
947add36
JB		 9652 struct wiphy *wiphy = wdev->wiphy;
9653 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9654
9655 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 9656 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9657 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 9658}
947add36 9659EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 9660
947add36
JB		 9661void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9662 struct station_info *sinfo, gfp_t gfp)
98b62183 9663{
947add36
JB		 9664 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9665 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 9666 struct sk_buff *msg;
9667
947add36
JB		 9668 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9669
58050fce 9670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9671 if (!msg)
9672 return;
9673
66266b3a
JL		 9674 if (nl80211_send_station(msg, 0, 0, 0,
9675 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9676 nlmsg_free(msg);
9677 return;
9678 }
9679
9680 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9681 nl80211_mlme_mcgrp.id, gfp);
9682}
947add36 9683EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 9684
947add36 9685void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 9686{
947add36
JB		 9687 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9688 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 9689 struct sk_buff *msg;
9690 void *hdr;
9691
947add36
JB		 9692 trace_cfg80211_del_sta(dev, mac_addr);
9693
58050fce 9694 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9695 if (!msg)
9696 return;
9697
9698 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9699 if (!hdr) {
9700 nlmsg_free(msg);
9701 return;
9702 }
9703
9360ffd1
DM		 9704 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9705 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9706 goto nla_put_failure;
ec15e68b 9707
3b7b72ee 9708 genlmsg_end(msg, hdr);
ec15e68b
JM		 9709
9710 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9711 nl80211_mlme_mcgrp.id, gfp);
9712 return;
9713
9714 nla_put_failure:
9715 genlmsg_cancel(msg, hdr);
9716 nlmsg_free(msg);
9717}
947add36 9718EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 9719
947add36
JB		 9720void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9721 enum nl80211_connect_failed_reason reason,
9722 gfp_t gfp)
ed44a951 9723{
947add36
JB		 9724 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9725 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 9726 struct sk_buff *msg;
9727 void *hdr;
9728
9729 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9730 if (!msg)
9731 return;
9732
9733 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9734 if (!hdr) {
9735 nlmsg_free(msg);
9736 return;
9737 }
9738
9739 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9740 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9741 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9742 goto nla_put_failure;
9743
9744 genlmsg_end(msg, hdr);
9745
9746 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9747 nl80211_mlme_mcgrp.id, gfp);
9748 return;
9749
9750 nla_put_failure:
9751 genlmsg_cancel(msg, hdr);
9752 nlmsg_free(msg);
9753}
947add36 9754EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 9755
b92ab5d8
JB		 9756static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9757 const u8 *addr, gfp_t gfp)
28946da7
JB		 9758{
9759 struct wireless_dev *wdev = dev->ieee80211_ptr;
9760 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9761 struct sk_buff *msg;
9762 void *hdr;
9763 int err;
15e47304 9764 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9765
15e47304 9766 if (!nlportid)
28946da7
JB		 9767 return false;
9768
9769 msg = nlmsg_new(100, gfp);
9770 if (!msg)
9771 return true;
9772
b92ab5d8 9773 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9774 if (!hdr) {
9775 nlmsg_free(msg);
9776 return true;
9777 }
9778
9360ffd1
DM		 9779 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9780 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9781 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9782 goto nla_put_failure;
28946da7
JB		 9783
9784 err = genlmsg_end(msg, hdr);
9785 if (err < 0) {
9786 nlmsg_free(msg);
9787 return true;
9788 }
9789
15e47304 9790 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9791 return true;
9792
9793 nla_put_failure:
9794 genlmsg_cancel(msg, hdr);
9795 nlmsg_free(msg);
9796 return true;
9797}
9798
947add36
JB		 9799bool cfg80211_rx_spurious_frame(struct net_device *dev,
9800 const u8 *addr, gfp_t gfp)
b92ab5d8 9801{
947add36
JB		 9802 struct wireless_dev *wdev = dev->ieee80211_ptr;
9803 bool ret;
9804
9805 trace_cfg80211_rx_spurious_frame(dev, addr);
9806
9807 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9808 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9809 trace_cfg80211_return_bool(false);
9810 return false;
9811 }
9812 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9813 addr, gfp);
9814 trace_cfg80211_return_bool(ret);
9815 return ret;
b92ab5d8 9816}
947add36 9817EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 9818
947add36
JB		 9819bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9820 const u8 *addr, gfp_t gfp)
b92ab5d8 9821{
947add36
JB		 9822 struct wireless_dev *wdev = dev->ieee80211_ptr;
9823 bool ret;
9824
9825 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9826
9827 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9828 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9829 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9830 trace_cfg80211_return_bool(false);
9831 return false;
9832 }
9833 ret = __nl80211_unexpected_frame(dev,
9834 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9835 addr, gfp);
9836 trace_cfg80211_return_bool(ret);
9837 return ret;
b92ab5d8 9838}
947add36 9839EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 9840
2e161f78 9841int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9842 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9843 int freq, int sig_dbm,
9844 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9845{
71bbc994 9846 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9847 struct sk_buff *msg;
9848 void *hdr;
026331c4
JM		 9849
9850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9851 if (!msg)
9852 return -ENOMEM;
9853
2e161f78 9854 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9855 if (!hdr) {
9856 nlmsg_free(msg);
9857 return -ENOMEM;
9858 }
9859
9360ffd1 9860 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9861 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9862 netdev->ifindex)) ||
9360ffd1
DM		 9863 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9864 (sig_dbm &&
9865 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9866 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9867 goto nla_put_failure;
026331c4 9868
3b7b72ee 9869 genlmsg_end(msg, hdr);
026331c4 9870
15e47304 9871 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9872
9873 nla_put_failure:
9874 genlmsg_cancel(msg, hdr);
9875 nlmsg_free(msg);
9876 return -ENOBUFS;
9877}
9878
947add36
JB		 9879void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9880 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 9881{
947add36
JB		 9882 struct wiphy *wiphy = wdev->wiphy;
9883 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 9884 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9885 struct sk_buff *msg;
9886 void *hdr;
9887
947add36
JB		 9888 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
9889
026331c4
JM		 9890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9891 if (!msg)
9892 return;
9893
2e161f78 9894 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9895 if (!hdr) {
9896 nlmsg_free(msg);
9897 return;
9898 }
9899
9360ffd1 9900 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9901 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9902 netdev->ifindex)) ||
9360ffd1
DM		 9903 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9904 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9905 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9906 goto nla_put_failure;
026331c4 9907
3b7b72ee 9908 genlmsg_end(msg, hdr);
026331c4
JM		 9909
9910 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9911 return;
9912
9913 nla_put_failure:
9914 genlmsg_cancel(msg, hdr);
9915 nlmsg_free(msg);
9916}
947add36 9917EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 9918
947add36
JB		 9919void cfg80211_cqm_rssi_notify(struct net_device *dev,
9920 enum nl80211_cqm_rssi_threshold_event rssi_event,
9921 gfp_t gfp)
d6dc1a38 9922{
947add36
JB		 9923 struct wireless_dev *wdev = dev->ieee80211_ptr;
9924 struct wiphy *wiphy = wdev->wiphy;
9925 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 9926 struct sk_buff *msg;
9927 struct nlattr *pinfoattr;
9928 void *hdr;
9929
947add36
JB		 9930 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
9931
58050fce 9932 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 9933 if (!msg)
9934 return;
9935
9936 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9937 if (!hdr) {
9938 nlmsg_free(msg);
9939 return;
9940 }
9941
9360ffd1 9942 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 9943 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 9944 goto nla_put_failure;
d6dc1a38
JO		 9945
9946 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9947 if (!pinfoattr)
9948 goto nla_put_failure;
9949
9360ffd1
DM		 9950 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9951 rssi_event))
9952 goto nla_put_failure;
d6dc1a38
JO		 9953
9954 nla_nest_end(msg, pinfoattr);
9955
3b7b72ee 9956 genlmsg_end(msg, hdr);
d6dc1a38
JO		 9957
9958 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9959 nl80211_mlme_mcgrp.id, gfp);
9960 return;
9961
9962 nla_put_failure:
9963 genlmsg_cancel(msg, hdr);
9964 nlmsg_free(msg);
9965}
947add36 9966EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 9967
947add36
JB		 9968static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9969 struct net_device *netdev, const u8 *bssid,
9970 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 9971{
9972 struct sk_buff *msg;
9973 struct nlattr *rekey_attr;
9974 void *hdr;
9975
58050fce 9976 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 9977 if (!msg)
9978 return;
9979
9980 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9981 if (!hdr) {
9982 nlmsg_free(msg);
9983 return;
9984 }
9985
9360ffd1
DM		 9986 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9987 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9988 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9989 goto nla_put_failure;
e5497d76
JB		 9990
9991 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9992 if (!rekey_attr)
9993 goto nla_put_failure;
9994
9360ffd1
DM		 9995 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9996 NL80211_REPLAY_CTR_LEN, replay_ctr))
9997 goto nla_put_failure;
e5497d76
JB		 9998
9999 nla_nest_end(msg, rekey_attr);
10000
3b7b72ee 10001 genlmsg_end(msg, hdr);
e5497d76
JB		 10002
10003 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10004 nl80211_mlme_mcgrp.id, gfp);
10005 return;
10006
10007 nla_put_failure:
10008 genlmsg_cancel(msg, hdr);
10009 nlmsg_free(msg);
10010}
10011
947add36
JB		 10012void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10013 const u8 *replay_ctr, gfp_t gfp)
10014{
10015 struct wireless_dev *wdev = dev->ieee80211_ptr;
10016 struct wiphy *wiphy = wdev->wiphy;
10017 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10018
10019 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10020 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10021}
10022EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10023
10024static void
10025nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10026 struct net_device *netdev, int index,
10027 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10028{
10029 struct sk_buff *msg;
10030 struct nlattr *attr;
10031 void *hdr;
10032
58050fce 10033 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10034 if (!msg)
10035 return;
10036
10037 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10038 if (!hdr) {
10039 nlmsg_free(msg);
10040 return;
10041 }
10042
9360ffd1
DM		 10043 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10044 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10045 goto nla_put_failure;
c9df56b4
JM		 10046
10047 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10048 if (!attr)
10049 goto nla_put_failure;
10050
9360ffd1
DM		 10051 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10052 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10053 (preauth &&
10054 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10055 goto nla_put_failure;
c9df56b4
JM		 10056
10057 nla_nest_end(msg, attr);
10058
3b7b72ee 10059 genlmsg_end(msg, hdr);
c9df56b4
JM		 10060
10061 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10062 nl80211_mlme_mcgrp.id, gfp);
10063 return;
10064
10065 nla_put_failure:
10066 genlmsg_cancel(msg, hdr);
10067 nlmsg_free(msg);
10068}
10069
947add36
JB		 10070void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10071 const u8 *bssid, bool preauth, gfp_t gfp)
10072{
10073 struct wireless_dev *wdev = dev->ieee80211_ptr;
10074 struct wiphy *wiphy = wdev->wiphy;
10075 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10076
10077 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10078 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10079}
10080EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10081
10082static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10083 struct net_device *netdev,
10084 struct cfg80211_chan_def *chandef,
10085 gfp_t gfp)
5314526b
TP		 10086{
10087 struct sk_buff *msg;
10088 void *hdr;
10089
58050fce 10090 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10091 if (!msg)
10092 return;
10093
10094 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10095 if (!hdr) {
10096 nlmsg_free(msg);
10097 return;
10098 }
10099
683b6d3b
JB		 10100 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10101 goto nla_put_failure;
10102
10103 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10104 goto nla_put_failure;
5314526b
TP		 10105
10106 genlmsg_end(msg, hdr);
10107
10108 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10109 nl80211_mlme_mcgrp.id, gfp);
10110 return;
10111
10112 nla_put_failure:
10113 genlmsg_cancel(msg, hdr);
10114 nlmsg_free(msg);
10115}
10116
947add36
JB		 10117void cfg80211_ch_switch_notify(struct net_device *dev,
10118 struct cfg80211_chan_def *chandef)
84f10708 10119{
947add36
JB		 10120 struct wireless_dev *wdev = dev->ieee80211_ptr;
10121 struct wiphy *wiphy = wdev->wiphy;
10122 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10123
10124 trace_cfg80211_ch_switch_notify(dev, chandef);
10125
10126 wdev_lock(wdev);
10127
10128 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10129 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10130 goto out;
10131
10132 wdev->channel = chandef->chan;
10133 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10134out:
10135 wdev_unlock(wdev);
10136 return;
10137}
10138EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10139
10140void cfg80211_cqm_txe_notify(struct net_device *dev,
10141 const u8 *peer, u32 num_packets,
10142 u32 rate, u32 intvl, gfp_t gfp)
10143{
10144 struct wireless_dev *wdev = dev->ieee80211_ptr;
10145 struct wiphy *wiphy = wdev->wiphy;
10146 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10147 struct sk_buff *msg;
10148 struct nlattr *pinfoattr;
10149 void *hdr;
10150
10151 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10152 if (!msg)
10153 return;
10154
10155 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10156 if (!hdr) {
10157 nlmsg_free(msg);
10158 return;
10159 }
10160
10161 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10162 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10163 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10164 goto nla_put_failure;
10165
10166 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10167 if (!pinfoattr)
10168 goto nla_put_failure;
10169
10170 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10171 goto nla_put_failure;
10172
10173 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10174 goto nla_put_failure;
10175
10176 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10177 goto nla_put_failure;
10178
10179 nla_nest_end(msg, pinfoattr);
10180
10181 genlmsg_end(msg, hdr);
10182
10183 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10184 nl80211_mlme_mcgrp.id, gfp);
10185 return;
10186
10187 nla_put_failure:
10188 genlmsg_cancel(msg, hdr);
10189 nlmsg_free(msg);
10190}
947add36 10191EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10192
04f39047
SW		 10193void
10194nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10195 struct cfg80211_chan_def *chandef,
10196 enum nl80211_radar_event event,
10197 struct net_device *netdev, gfp_t gfp)
10198{
10199 struct sk_buff *msg;
10200 void *hdr;
10201
10202 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10203 if (!msg)
10204 return;
10205
10206 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10207 if (!hdr) {
10208 nlmsg_free(msg);
10209 return;
10210 }
10211
10212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10213 goto nla_put_failure;
10214
10215 /* NOP and radar events don't need a netdev parameter */
10216 if (netdev) {
10217 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10218
10219 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10220 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10221 goto nla_put_failure;
10222 }
10223
10224 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10225 goto nla_put_failure;
10226
10227 if (nl80211_send_chandef(msg, chandef))
10228 goto nla_put_failure;
10229
10230 if (genlmsg_end(msg, hdr) < 0) {
10231 nlmsg_free(msg);
10232 return;
10233 }
10234
10235 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10236 nl80211_mlme_mcgrp.id, gfp);
10237 return;
10238
10239 nla_put_failure:
10240 genlmsg_cancel(msg, hdr);
10241 nlmsg_free(msg);
10242}
10243
947add36
JB		 10244void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10245 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10246{
947add36
JB		 10247 struct wireless_dev *wdev = dev->ieee80211_ptr;
10248 struct wiphy *wiphy = wdev->wiphy;
10249 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10250 struct sk_buff *msg;
10251 struct nlattr *pinfoattr;
10252 void *hdr;
10253
947add36
JB		 10254 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10255
58050fce 10256 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10257 if (!msg)
10258 return;
10259
10260 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10261 if (!hdr) {
10262 nlmsg_free(msg);
10263 return;
10264 }
10265
9360ffd1 10266 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10267 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10268 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10269 goto nla_put_failure;
c063dbf5
JB		 10270
10271 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10272 if (!pinfoattr)
10273 goto nla_put_failure;
10274
9360ffd1
DM		 10275 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10276 goto nla_put_failure;
c063dbf5
JB		 10277
10278 nla_nest_end(msg, pinfoattr);
10279
3b7b72ee 10280 genlmsg_end(msg, hdr);
c063dbf5
JB		 10281
10282 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10283 nl80211_mlme_mcgrp.id, gfp);
10284 return;
10285
10286 nla_put_failure:
10287 genlmsg_cancel(msg, hdr);
10288 nlmsg_free(msg);
10289}
947add36 10290EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10291
7f6cf311
JB		 10292void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10293 u64 cookie, bool acked, gfp_t gfp)
10294{
10295 struct wireless_dev *wdev = dev->ieee80211_ptr;
10296 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10297 struct sk_buff *msg;
10298 void *hdr;
10299 int err;
10300
4ee3e063
BL		 10301 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10302
58050fce 10303 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10304
7f6cf311
JB		 10305 if (!msg)
10306 return;
10307
10308 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10309 if (!hdr) {
10310 nlmsg_free(msg);
10311 return;
10312 }
10313
9360ffd1
DM		 10314 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10315 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10316 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10317 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10318 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10319 goto nla_put_failure;
7f6cf311
JB		 10320
10321 err = genlmsg_end(msg, hdr);
10322 if (err < 0) {
10323 nlmsg_free(msg);
10324 return;
10325 }
10326
10327 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10328 nl80211_mlme_mcgrp.id, gfp);
10329 return;
10330
10331 nla_put_failure:
10332 genlmsg_cancel(msg, hdr);
10333 nlmsg_free(msg);
10334}
10335EXPORT_SYMBOL(cfg80211_probe_status);
10336
5e760230
JB		 10337void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10338 const u8 *frame, size_t len,
37c73b5f 10339 int freq, int sig_dbm)
5e760230
JB		 10340{
10341 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10342 struct sk_buff *msg;
10343 void *hdr;
37c73b5f 10344 struct cfg80211_beacon_registration *reg;
5e760230 10345
4ee3e063
BL		 10346 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10347
37c73b5f
BG		 10348 spin_lock_bh(&rdev->beacon_registrations_lock);
10349 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10350 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10351 if (!msg) {
10352 spin_unlock_bh(&rdev->beacon_registrations_lock);
10353 return;
10354 }
5e760230 10355
37c73b5f
BG		 10356 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10357 if (!hdr)
10358 goto nla_put_failure;
5e760230 10359
37c73b5f
BG		 10360 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10361 (freq &&
10362 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10363 (sig_dbm &&
10364 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10365 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10366 goto nla_put_failure;
5e760230 10367
37c73b5f 10368 genlmsg_end(msg, hdr);
5e760230 10369
37c73b5f
BG		 10370 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10371 }
10372 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10373 return;
10374
10375 nla_put_failure:
37c73b5f
BG		 10376 spin_unlock_bh(&rdev->beacon_registrations_lock);
10377 if (hdr)
10378 genlmsg_cancel(msg, hdr);
5e760230
JB		 10379 nlmsg_free(msg);
10380}
10381EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10382
cd8f7cb4
JB		 10383#ifdef CONFIG_PM
10384void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10385 struct cfg80211_wowlan_wakeup *wakeup,
10386 gfp_t gfp)
10387{
10388 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10389 struct sk_buff *msg;
10390 void *hdr;
10391 int err, size = 200;
10392
10393 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10394
10395 if (wakeup)
10396 size += wakeup->packet_present_len;
10397
10398 msg = nlmsg_new(size, gfp);
10399 if (!msg)
10400 return;
10401
10402 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10403 if (!hdr)
10404 goto free_msg;
10405
10406 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10407 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10408 goto free_msg;
10409
10410 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10411 wdev->netdev->ifindex))
10412 goto free_msg;
10413
10414 if (wakeup) {
10415 struct nlattr *reasons;
10416
10417 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10418
10419 if (wakeup->disconnect &&
10420 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10421 goto free_msg;
10422 if (wakeup->magic_pkt &&
10423 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10424 goto free_msg;
10425 if (wakeup->gtk_rekey_failure &&
10426 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10427 goto free_msg;
10428 if (wakeup->eap_identity_req &&
10429 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10430 goto free_msg;
10431 if (wakeup->four_way_handshake &&
10432 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10433 goto free_msg;
10434 if (wakeup->rfkill_release &&
10435 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10436 goto free_msg;
10437
10438 if (wakeup->pattern_idx >= 0 &&
10439 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10440 wakeup->pattern_idx))
10441 goto free_msg;
10442
2a0e047e
JB		 10443 if (wakeup->tcp_match)
10444 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10445
10446 if (wakeup->tcp_connlost)
10447 nla_put_flag(msg,
10448 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10449
10450 if (wakeup->tcp_nomoretokens)
10451 nla_put_flag(msg,
10452 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10453
cd8f7cb4
JB		 10454 if (wakeup->packet) {
10455 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10456 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10457
10458 if (!wakeup->packet_80211) {
10459 pkt_attr =
10460 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10461 len_attr =
10462 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10463 }
10464
10465 if (wakeup->packet_len &&
10466 nla_put_u32(msg, len_attr, wakeup->packet_len))
10467 goto free_msg;
10468
10469 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10470 wakeup->packet))
10471 goto free_msg;
10472 }
10473
10474 nla_nest_end(msg, reasons);
10475 }
10476
10477 err = genlmsg_end(msg, hdr);
10478 if (err < 0)
10479 goto free_msg;
10480
10481 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10482 nl80211_mlme_mcgrp.id, gfp);
10483 return;
10484
10485 free_msg:
10486 nlmsg_free(msg);
10487}
10488EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10489#endif
10490
3475b094
JM		 10491void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10492 enum nl80211_tdls_operation oper,
10493 u16 reason_code, gfp_t gfp)
10494{
10495 struct wireless_dev *wdev = dev->ieee80211_ptr;
10496 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10497 struct sk_buff *msg;
10498 void *hdr;
10499 int err;
10500
10501 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10502 reason_code);
10503
10504 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10505 if (!msg)
10506 return;
10507
10508 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10509 if (!hdr) {
10510 nlmsg_free(msg);
10511 return;
10512 }
10513
10514 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10515 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10516 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10517 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10518 (reason_code > 0 &&
10519 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10520 goto nla_put_failure;
10521
10522 err = genlmsg_end(msg, hdr);
10523 if (err < 0) {
10524 nlmsg_free(msg);
10525 return;
10526 }
10527
10528 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10529 nl80211_mlme_mcgrp.id, gfp);
10530 return;
10531
10532 nla_put_failure:
10533 genlmsg_cancel(msg, hdr);
10534 nlmsg_free(msg);
10535}
10536EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10537
026331c4
JM		 10538static int nl80211_netlink_notify(struct notifier_block * nb,
10539 unsigned long state,
10540 void *_notify)
10541{
10542 struct netlink_notify *notify = _notify;
10543 struct cfg80211_registered_device *rdev;
10544 struct wireless_dev *wdev;
37c73b5f 10545 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10546
10547 if (state != NETLINK_URELEASE)
10548 return NOTIFY_DONE;
10549
10550 rcu_read_lock();
10551
5e760230 10552 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10553 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10554 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10555
10556 spin_lock_bh(&rdev->beacon_registrations_lock);
10557 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10558 list) {
10559 if (reg->nlportid == notify->portid) {
10560 list_del(&reg->list);
10561 kfree(reg);
10562 break;
10563 }
10564 }
10565 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10566 }
026331c4
JM		 10567
10568 rcu_read_unlock();
10569
10570 return NOTIFY_DONE;
10571}
10572
10573static struct notifier_block nl80211_netlink_notifier = {
10574 .notifier_call = nl80211_netlink_notify,
10575};
10576
355199e0
JM		 10577void cfg80211_ft_event(struct net_device *netdev,
10578 struct cfg80211_ft_event_params *ft_event)
10579{
10580 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10581 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10582 struct sk_buff *msg;
10583 void *hdr;
10584 int err;
10585
10586 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10587
10588 if (!ft_event->target_ap)
10589 return;
10590
10591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10592 if (!msg)
10593 return;
10594
10595 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10596 if (!hdr) {
10597 nlmsg_free(msg);
10598 return;
10599 }
10600
10601 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10602 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10603 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10604 if (ft_event->ies)
10605 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10606 if (ft_event->ric_ies)
10607 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10608 ft_event->ric_ies);
10609
10610 err = genlmsg_end(msg, hdr);
10611 if (err < 0) {
10612 nlmsg_free(msg);
10613 return;
10614 }
10615
10616 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10617 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10618}
10619EXPORT_SYMBOL(cfg80211_ft_event);
10620
55682965
JB		 10621/* initialisation/exit functions */
10622
10623int nl80211_init(void)
10624{
0d63cbb5 10625 int err;
55682965 10626
0d63cbb5
MM		 10627 err = genl_register_family_with_ops(&nl80211_fam,
10628 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10629 if (err)
10630 return err;
10631
55682965
JB		 10632 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10633 if (err)
10634 goto err_out;
10635
2a519311
JB		 10636 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10637 if (err)
10638 goto err_out;
10639
73d54c9e
LR		 10640 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10641 if (err)
10642 goto err_out;
10643
6039f6d2
JM		 10644 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10645 if (err)
10646 goto err_out;
10647
aff89a9b
JB		 10648#ifdef CONFIG_NL80211_TESTMODE
10649 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10650 if (err)
10651 goto err_out;
10652#endif
10653
026331c4
JM		 10654 err = netlink_register_notifier(&nl80211_netlink_notifier);
10655 if (err)
10656 goto err_out;
10657
55682965
JB		 10658 return 0;
10659 err_out:
10660 genl_unregister_family(&nl80211_fam);
10661 return err;
10662}
10663
10664void nl80211_exit(void)
10665{
026331c4 10666 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10667 genl_unregister_family(&nl80211_fam);
10668}
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