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Merge remote-tracking branch 'mac80211/master' into HEAD
[mirror_ubuntu-artful-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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 = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 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
5fe231e8 62 ASSERT_RTNL();
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
89a54e48
JB		 83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
89a54e48
JB		 94
95 if (result)
96 break;
97 }
98
99 if (result)
100 return result;
101 return ERR_PTR(-ENODEV);
55682965
JB		 102}
103
a9455408 104static struct cfg80211_registered_device *
878d9ec7 105__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 106{
7fee4778
JB		 107 struct cfg80211_registered_device *rdev = NULL, *tmp;
108 struct net_device *netdev;
a9455408 109
5fe231e8 110 ASSERT_RTNL();
a9455408 111
878d9ec7 112 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 113 !attrs[NL80211_ATTR_IFINDEX] &&
114 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 115 return ERR_PTR(-EINVAL);
116
878d9ec7 117 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 118 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 119 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 120
89a54e48
JB		 121 if (attrs[NL80211_ATTR_WDEV]) {
122 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
123 struct wireless_dev *wdev;
124 bool found = false;
125
126 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
127 if (tmp) {
128 /* make sure wdev exists */
89a54e48
JB		 129 list_for_each_entry(wdev, &tmp->wdev_list, list) {
130 if (wdev->identifier != (u32)wdev_id)
131 continue;
132 found = true;
133 break;
134 }
89a54e48
JB		 135
136 if (!found)
137 tmp = NULL;
138
139 if (rdev && tmp != rdev)
140 return ERR_PTR(-EINVAL);
141 rdev = tmp;
142 }
143 }
144
878d9ec7
JB		 145 if (attrs[NL80211_ATTR_IFINDEX]) {
146 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 147 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 148 if (netdev) {
149 if (netdev->ieee80211_ptr)
150 tmp = wiphy_to_dev(
151 netdev->ieee80211_ptr->wiphy);
152 else
153 tmp = NULL;
154
155 dev_put(netdev);
156
157 /* not wireless device -- return error */
158 if (!tmp)
159 return ERR_PTR(-EINVAL);
160
161 /* mismatch -- return error */
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164
165 rdev = tmp;
a9455408 166 }
a9455408 167 }
a9455408 168
4f7eff10
JB		 169 if (!rdev)
170 return ERR_PTR(-ENODEV);
a9455408 171
4f7eff10
JB		 172 if (netns != wiphy_net(&rdev->wiphy))
173 return ERR_PTR(-ENODEV);
174
175 return rdev;
a9455408
JB		 176}
177
178/*
179 * This function returns a pointer to the driver
180 * that the genl_info item that is passed refers to.
a9455408
JB		 181 *
182 * The result of this can be a PTR_ERR and hence must
183 * be checked with IS_ERR() for errors.
184 */
185static struct cfg80211_registered_device *
4f7eff10 186cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 187{
5fe231e8 188 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 189}
190
55682965 191/* policy for the attributes */
b54452b0 192static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 193 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
194 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 195 .len = 20-1 },
31888487 196 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 197
72bdcf34 198 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 199 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 200 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
201 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
202 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
203
b9a5f8ca
JM		 204 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
205 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
206 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
207 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 208 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 209
210 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
211 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
212 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 213
e007b857
EP		 214 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
215 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 216
b9454e83 217 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 218 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
219 .len = WLAN_MAX_KEY_LEN },
220 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
221 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
222 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 223 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 224 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 225
226 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
227 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
228 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
229 .len = IEEE80211_MAX_DATA_LEN },
230 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 232 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
233 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
234 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
235 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
236 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 237 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 238 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 239 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 240 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 241 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 242 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 243
b2e1b302
LR		 244 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
245 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
246
9f1ba906
JM		 247 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
248 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
249 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 250 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
251 .len = NL80211_MAX_SUPP_RATES },
50b12f59 252 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 253
24bdd9f4 254 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 255 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 256
6c739419 257 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 258
259 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
260 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 262 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
263 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 264
265 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
266 .len = IEEE80211_MAX_SSID_LEN },
267 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
268 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 269 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 270 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 271 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 272 [NL80211_ATTR_STA_FLAGS2] = {
273 .len = sizeof(struct nl80211_sta_flag_update),
274 },
3f77316c 275 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 276 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
277 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 278 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
279 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
280 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 281 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 282 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 283 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
284 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 285 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
286 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 287 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 288 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_DATA_LEN },
290 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 291 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 292 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 293 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 294 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 295 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
296 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 297 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 298 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
299 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 300 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 301 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 302 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 303 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 304 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 305 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 306 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 307 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 308 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 309 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 313 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 314 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 315 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 316 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
317 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
318 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
319 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
320 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 321 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 322 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 324 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 325 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
326 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
327 .len = NL80211_HT_CAPABILITY_LEN
328 },
1d9d9213 329 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 330 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 331 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 332 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 333 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 334 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 335 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 336 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 337 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
338 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 339 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
340 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 341 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
342 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 343 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 344 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
346 .len = NL80211_VHT_CAPABILITY_LEN,
347 },
355199e0
JM		 348 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
349 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
350 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 351 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
55682965
JB		 352};
353
e31b8213 354/* policy for the key attributes */
b54452b0 355static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 356 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 357 [NL80211_KEY_IDX] = { .type = NLA_U8 },
358 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 359 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 360 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
361 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 362 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 363 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
364};
365
366/* policy for the key default flags */
367static const struct nla_policy
368nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
369 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
370 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 371};
372
ff1b6e69
JB		 373/* policy for WoWLAN attributes */
374static const struct nla_policy
375nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
376 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
377 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
378 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
379 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 380 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
381 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
382 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 384 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
385};
386
387static const struct nla_policy
388nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
389 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
390 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
391 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
392 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
393 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
394 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
395 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
396 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
397 },
398 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
399 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
400 },
401 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
402 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
403 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 404};
405
e5497d76
JB		 406/* policy for GTK rekey offload attributes */
407static const struct nla_policy
408nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
409 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
410 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
411 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
412};
413
a1f1c21c
LC		 414static const struct nla_policy
415nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 416 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 417 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 418 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 419};
420
97990a06
JB		 421static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
422 struct netlink_callback *cb,
423 struct cfg80211_registered_device **rdev,
424 struct wireless_dev **wdev)
a043897a 425{
97990a06 426 int err;
a043897a 427
97990a06 428 rtnl_lock();
a043897a 429
97990a06
JB		 430 if (!cb->args[0]) {
431 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
432 nl80211_fam.attrbuf, nl80211_fam.maxattr,
433 nl80211_policy);
434 if (err)
435 goto out_unlock;
67748893 436
97990a06
JB		 437 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
438 nl80211_fam.attrbuf);
439 if (IS_ERR(*wdev)) {
440 err = PTR_ERR(*wdev);
441 goto out_unlock;
442 }
443 *rdev = wiphy_to_dev((*wdev)->wiphy);
444 cb->args[0] = (*rdev)->wiphy_idx;
445 cb->args[1] = (*wdev)->identifier;
446 } else {
447 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
448 struct wireless_dev *tmp;
67748893 449
97990a06
JB		 450 if (!wiphy) {
451 err = -ENODEV;
452 goto out_unlock;
453 }
454 *rdev = wiphy_to_dev(wiphy);
455 *wdev = NULL;
67748893 456
97990a06
JB		 457 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
458 if (tmp->identifier == cb->args[1]) {
459 *wdev = tmp;
460 break;
461 }
462 }
67748893 463
97990a06
JB		 464 if (!*wdev) {
465 err = -ENODEV;
466 goto out_unlock;
467 }
67748893
JB		 468 }
469
67748893 470 return 0;
97990a06 471 out_unlock:
67748893
JB		 472 rtnl_unlock();
473 return err;
474}
475
97990a06 476static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 477{
67748893
JB		 478 rtnl_unlock();
479}
480
f4a11bb0
JB		 481/* IE validation */
482static bool is_valid_ie_attr(const struct nlattr *attr)
483{
484 const u8 *pos;
485 int len;
486
487 if (!attr)
488 return true;
489
490 pos = nla_data(attr);
491 len = nla_len(attr);
492
493 while (len) {
494 u8 elemlen;
495
496 if (len < 2)
497 return false;
498 len -= 2;
499
500 elemlen = pos[1];
501 if (elemlen > len)
502 return false;
503
504 len -= elemlen;
505 pos += 2 + elemlen;
506 }
507
508 return true;
509}
510
55682965 511/* message building helper */
15e47304 512static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 513 int flags, u8 cmd)
514{
515 /* since there is no private header just add the generic one */
15e47304 516 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 517}
518
5dab3b8a 519static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 520 struct ieee80211_channel *chan,
521 bool large)
5dab3b8a 522{
9360ffd1
DM		 523 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
524 chan->center_freq))
525 goto nla_put_failure;
5dab3b8a 526
9360ffd1
DM		 527 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
528 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
529 goto nla_put_failure;
530 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
531 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
532 goto nla_put_failure;
533 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
534 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
535 goto nla_put_failure;
cdc89b97
JB		 536 if (chan->flags & IEEE80211_CHAN_RADAR) {
537 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
538 goto nla_put_failure;
539 if (large) {
540 u32 time;
541
542 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
543
544 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
545 chan->dfs_state))
546 goto nla_put_failure;
547 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
548 time))
549 goto nla_put_failure;
550 }
551 }
5dab3b8a 552
fe1abafd
JB		 553 if (large) {
554 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
555 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
556 goto nla_put_failure;
557 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
559 goto nla_put_failure;
560 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
561 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
562 goto nla_put_failure;
563 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
564 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
565 goto nla_put_failure;
566 }
567
9360ffd1
DM		 568 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
569 DBM_TO_MBM(chan->max_power)))
570 goto nla_put_failure;
5dab3b8a
LR		 571
572 return 0;
573
574 nla_put_failure:
575 return -ENOBUFS;
576}
577
55682965
JB		 578/* netlink command implementations */
579
b9454e83
JB		 580struct key_parse {
581 struct key_params p;
582 int idx;
e31b8213 583 int type;
b9454e83 584 bool def, defmgmt;
dbd2fd65 585 bool def_uni, def_multi;
b9454e83
JB		 586};
587
588static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
589{
590 struct nlattr *tb[NL80211_KEY_MAX + 1];
591 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
592 nl80211_key_policy);
593 if (err)
594 return err;
595
596 k->def = !!tb[NL80211_KEY_DEFAULT];
597 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
598
dbd2fd65
JB		 599 if (k->def) {
600 k->def_uni = true;
601 k->def_multi = true;
602 }
603 if (k->defmgmt)
604 k->def_multi = true;
605
b9454e83
JB		 606 if (tb[NL80211_KEY_IDX])
607 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
608
609 if (tb[NL80211_KEY_DATA]) {
610 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
611 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
612 }
613
614 if (tb[NL80211_KEY_SEQ]) {
615 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
616 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
617 }
618
619 if (tb[NL80211_KEY_CIPHER])
620 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
621
e31b8213
JB		 622 if (tb[NL80211_KEY_TYPE]) {
623 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
624 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
625 return -EINVAL;
626 }
627
dbd2fd65
JB		 628 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
629 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 630 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
631 tb[NL80211_KEY_DEFAULT_TYPES],
632 nl80211_key_default_policy);
dbd2fd65
JB		 633 if (err)
634 return err;
635
636 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
637 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
638 }
639
b9454e83
JB		 640 return 0;
641}
642
643static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
644{
645 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
646 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
647 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
648 }
649
650 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
651 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
652 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
653 }
654
655 if (info->attrs[NL80211_ATTR_KEY_IDX])
656 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
657
658 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
659 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
660
661 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
662 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
663
dbd2fd65
JB		 664 if (k->def) {
665 k->def_uni = true;
666 k->def_multi = true;
667 }
668 if (k->defmgmt)
669 k->def_multi = true;
670
e31b8213
JB		 671 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
672 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
673 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
674 return -EINVAL;
675 }
676
dbd2fd65
JB		 677 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
678 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
679 int err = nla_parse_nested(
680 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
681 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
682 nl80211_key_default_policy);
683 if (err)
684 return err;
685
686 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
687 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
688 }
689
b9454e83
JB		 690 return 0;
691}
692
693static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
694{
695 int err;
696
697 memset(k, 0, sizeof(*k));
698 k->idx = -1;
e31b8213 699 k->type = -1;
b9454e83
JB		 700
701 if (info->attrs[NL80211_ATTR_KEY])
702 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
703 else
704 err = nl80211_parse_key_old(info, k);
705
706 if (err)
707 return err;
708
709 if (k->def && k->defmgmt)
710 return -EINVAL;
711
dbd2fd65
JB		 712 if (k->defmgmt) {
713 if (k->def_uni || !k->def_multi)
714 return -EINVAL;
715 }
716
b9454e83
JB		 717 if (k->idx != -1) {
718 if (k->defmgmt) {
719 if (k->idx < 4 || k->idx > 5)
720 return -EINVAL;
721 } else if (k->def) {
722 if (k->idx < 0 || k->idx > 3)
723 return -EINVAL;
724 } else {
725 if (k->idx < 0 || k->idx > 5)
726 return -EINVAL;
727 }
728 }
729
730 return 0;
731}
732
fffd0934
JB		 733static struct cfg80211_cached_keys *
734nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 735 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 736{
737 struct key_parse parse;
738 struct nlattr *key;
739 struct cfg80211_cached_keys *result;
740 int rem, err, def = 0;
741
742 result = kzalloc(sizeof(*result), GFP_KERNEL);
743 if (!result)
744 return ERR_PTR(-ENOMEM);
745
746 result->def = -1;
747 result->defmgmt = -1;
748
749 nla_for_each_nested(key, keys, rem) {
750 memset(&parse, 0, sizeof(parse));
751 parse.idx = -1;
752
753 err = nl80211_parse_key_new(key, &parse);
754 if (err)
755 goto error;
756 err = -EINVAL;
757 if (!parse.p.key)
758 goto error;
759 if (parse.idx < 0 || parse.idx > 4)
760 goto error;
761 if (parse.def) {
762 if (def)
763 goto error;
764 def = 1;
765 result->def = parse.idx;
dbd2fd65
JB		 766 if (!parse.def_uni || !parse.def_multi)
767 goto error;
fffd0934
JB		 768 } else if (parse.defmgmt)
769 goto error;
770 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 771 parse.idx, false, NULL);
fffd0934
JB		 772 if (err)
773 goto error;
774 result->params[parse.idx].cipher = parse.p.cipher;
775 result->params[parse.idx].key_len = parse.p.key_len;
776 result->params[parse.idx].key = result->data[parse.idx];
777 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 778
779 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
780 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
781 if (no_ht)
782 *no_ht = true;
783 }
fffd0934
JB		 784 }
785
786 return result;
787 error:
788 kfree(result);
789 return ERR_PTR(err);
790}
791
792static int nl80211_key_allowed(struct wireless_dev *wdev)
793{
794 ASSERT_WDEV_LOCK(wdev);
795
fffd0934
JB		 796 switch (wdev->iftype) {
797 case NL80211_IFTYPE_AP:
798 case NL80211_IFTYPE_AP_VLAN:
074ac8df 799 case NL80211_IFTYPE_P2P_GO:
ff973af7 800 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 801 break;
802 case NL80211_IFTYPE_ADHOC:
fffd0934 803 case NL80211_IFTYPE_STATION:
074ac8df 804 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 805 if (!wdev->current_bss)
fffd0934
JB		 806 return -ENOLINK;
807 break;
808 default:
809 return -EINVAL;
810 }
811
812 return 0;
813}
814
7527a782
JB		 815static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
816{
817 struct nlattr *nl_modes = nla_nest_start(msg, attr);
818 int i;
819
820 if (!nl_modes)
821 goto nla_put_failure;
822
823 i = 0;
824 while (ifmodes) {
9360ffd1
DM		 825 if ((ifmodes & 1) && nla_put_flag(msg, i))
826 goto nla_put_failure;
7527a782
JB		 827 ifmodes >>= 1;
828 i++;
829 }
830
831 nla_nest_end(msg, nl_modes);
832 return 0;
833
834nla_put_failure:
835 return -ENOBUFS;
836}
837
838static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 839 struct sk_buff *msg,
840 bool large)
7527a782
JB		 841{
842 struct nlattr *nl_combis;
843 int i, j;
844
845 nl_combis = nla_nest_start(msg,
846 NL80211_ATTR_INTERFACE_COMBINATIONS);
847 if (!nl_combis)
848 goto nla_put_failure;
849
850 for (i = 0; i < wiphy->n_iface_combinations; i++) {
851 const struct ieee80211_iface_combination *c;
852 struct nlattr *nl_combi, *nl_limits;
853
854 c = &wiphy->iface_combinations[i];
855
856 nl_combi = nla_nest_start(msg, i + 1);
857 if (!nl_combi)
858 goto nla_put_failure;
859
860 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
861 if (!nl_limits)
862 goto nla_put_failure;
863
864 for (j = 0; j < c->n_limits; j++) {
865 struct nlattr *nl_limit;
866
867 nl_limit = nla_nest_start(msg, j + 1);
868 if (!nl_limit)
869 goto nla_put_failure;
9360ffd1
DM		 870 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
871 c->limits[j].max))
872 goto nla_put_failure;
7527a782
JB		 873 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
874 c->limits[j].types))
875 goto nla_put_failure;
876 nla_nest_end(msg, nl_limit);
877 }
878
879 nla_nest_end(msg, nl_limits);
880
9360ffd1
DM		 881 if (c->beacon_int_infra_match &&
882 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
883 goto nla_put_failure;
884 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
885 c->num_different_channels) ||
886 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
887 c->max_interfaces))
888 goto nla_put_failure;
cdc89b97
JB		 889 if (large &&
890 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
891 c->radar_detect_widths))
892 goto nla_put_failure;
7527a782
JB		 893
894 nla_nest_end(msg, nl_combi);
895 }
896
897 nla_nest_end(msg, nl_combis);
898
899 return 0;
900nla_put_failure:
901 return -ENOBUFS;
902}
903
3713b4e3 904#ifdef CONFIG_PM
b56cf720
JB		 905static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
906 struct sk_buff *msg)
907{
964dc9e2 908 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 909 struct nlattr *nl_tcp;
910
911 if (!tcp)
912 return 0;
913
914 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
915 if (!nl_tcp)
916 return -ENOBUFS;
917
918 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
919 tcp->data_payload_max))
920 return -ENOBUFS;
921
922 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
923 tcp->data_payload_max))
924 return -ENOBUFS;
925
926 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
927 return -ENOBUFS;
928
929 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
930 sizeof(*tcp->tok), tcp->tok))
931 return -ENOBUFS;
932
933 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
934 tcp->data_interval_max))
935 return -ENOBUFS;
936
937 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
938 tcp->wake_payload_max))
939 return -ENOBUFS;
940
941 nla_nest_end(msg, nl_tcp);
942 return 0;
943}
944
3713b4e3 945static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 946 struct cfg80211_registered_device *dev,
947 bool large)
55682965 948{
3713b4e3 949 struct nlattr *nl_wowlan;
55682965 950
964dc9e2 951 if (!dev->wiphy.wowlan)
3713b4e3 952 return 0;
55682965 953
3713b4e3
JB		 954 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
955 if (!nl_wowlan)
956 return -ENOBUFS;
9360ffd1 957
964dc9e2 958 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 959 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 960 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 961 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 962 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 963 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 964 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 965 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 966 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 967 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 968 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 969 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 970 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 971 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 972 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 973 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
974 return -ENOBUFS;
9360ffd1 975
964dc9e2 976 if (dev->wiphy.wowlan->n_patterns) {
3713b4e3 977 struct nl80211_wowlan_pattern_support pat = {
964dc9e2
JB		 978 .max_patterns = dev->wiphy.wowlan->n_patterns,
979 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
980 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
981 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 982 };
9360ffd1 983
3713b4e3
JB		 984 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
985 sizeof(pat), &pat))
986 return -ENOBUFS;
987 }
9360ffd1 988
b56cf720
JB		 989 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
990 return -ENOBUFS;
991
3713b4e3 992 nla_nest_end(msg, nl_wowlan);
9360ffd1 993
3713b4e3
JB		 994 return 0;
995}
996#endif
9360ffd1 997
3713b4e3
JB		 998static int nl80211_send_band_rateinfo(struct sk_buff *msg,
999 struct ieee80211_supported_band *sband)
1000{
1001 struct nlattr *nl_rates, *nl_rate;
1002 struct ieee80211_rate *rate;
1003 int i;
87bbbe22 1004
3713b4e3
JB		 1005 /* add HT info */
1006 if (sband->ht_cap.ht_supported &&
1007 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1008 sizeof(sband->ht_cap.mcs),
1009 &sband->ht_cap.mcs) ||
1010 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1011 sband->ht_cap.cap) ||
1012 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1013 sband->ht_cap.ampdu_factor) ||
1014 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1015 sband->ht_cap.ampdu_density)))
1016 return -ENOBUFS;
afe0cbf8 1017
3713b4e3
JB		 1018 /* add VHT info */
1019 if (sband->vht_cap.vht_supported &&
1020 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1021 sizeof(sband->vht_cap.vht_mcs),
1022 &sband->vht_cap.vht_mcs) ||
1023 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1024 sband->vht_cap.cap)))
1025 return -ENOBUFS;
f59ac048 1026
3713b4e3
JB		 1027 /* add bitrates */
1028 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1029 if (!nl_rates)
1030 return -ENOBUFS;
ee688b00 1031
3713b4e3
JB		 1032 for (i = 0; i < sband->n_bitrates; i++) {
1033 nl_rate = nla_nest_start(msg, i);
1034 if (!nl_rate)
1035 return -ENOBUFS;
ee688b00 1036
3713b4e3
JB		 1037 rate = &sband->bitrates[i];
1038 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1039 rate->bitrate))
1040 return -ENOBUFS;
1041 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1042 nla_put_flag(msg,
1043 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1044 return -ENOBUFS;
ee688b00 1045
3713b4e3
JB		 1046 nla_nest_end(msg, nl_rate);
1047 }
d51626df 1048
3713b4e3 1049 nla_nest_end(msg, nl_rates);
bf0c111e 1050
3713b4e3
JB		 1051 return 0;
1052}
ee688b00 1053
3713b4e3
JB		 1054static int
1055nl80211_send_mgmt_stypes(struct sk_buff *msg,
1056 const struct ieee80211_txrx_stypes *mgmt_stypes)
1057{
1058 u16 stypes;
1059 struct nlattr *nl_ftypes, *nl_ifs;
1060 enum nl80211_iftype ift;
1061 int i;
ee688b00 1062
3713b4e3
JB		 1063 if (!mgmt_stypes)
1064 return 0;
5dab3b8a 1065
3713b4e3
JB		 1066 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1067 if (!nl_ifs)
1068 return -ENOBUFS;
e2f367f2 1069
3713b4e3
JB		 1070 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1071 nl_ftypes = nla_nest_start(msg, ift);
1072 if (!nl_ftypes)
1073 return -ENOBUFS;
1074 i = 0;
1075 stypes = mgmt_stypes[ift].tx;
1076 while (stypes) {
1077 if ((stypes & 1) &&
1078 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1079 (i << 4) | IEEE80211_FTYPE_MGMT))
1080 return -ENOBUFS;
1081 stypes >>= 1;
1082 i++;
ee688b00 1083 }
3713b4e3
JB		 1084 nla_nest_end(msg, nl_ftypes);
1085 }
ee688b00 1086
3713b4e3 1087 nla_nest_end(msg, nl_ifs);
ee688b00 1088
3713b4e3
JB		 1089 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1090 if (!nl_ifs)
1091 return -ENOBUFS;
ee688b00 1092
3713b4e3
JB		 1093 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1094 nl_ftypes = nla_nest_start(msg, ift);
1095 if (!nl_ftypes)
1096 return -ENOBUFS;
1097 i = 0;
1098 stypes = mgmt_stypes[ift].rx;
1099 while (stypes) {
1100 if ((stypes & 1) &&
1101 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1102 (i << 4) | IEEE80211_FTYPE_MGMT))
1103 return -ENOBUFS;
1104 stypes >>= 1;
1105 i++;
1106 }
1107 nla_nest_end(msg, nl_ftypes);
1108 }
1109 nla_nest_end(msg, nl_ifs);
ee688b00 1110
3713b4e3
JB		 1111 return 0;
1112}
ee688b00 1113
3713b4e3
JB		 1114static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1115 struct sk_buff *msg, u32 portid, u32 seq,
1116 int flags, bool split, long *split_start,
1117 long *band_start, long *chan_start)
1118{
1119 void *hdr;
1120 struct nlattr *nl_bands, *nl_band;
1121 struct nlattr *nl_freqs, *nl_freq;
1122 struct nlattr *nl_cmds;
1123 enum ieee80211_band band;
1124 struct ieee80211_channel *chan;
1125 int i;
1126 const struct ieee80211_txrx_stypes *mgmt_stypes =
1127 dev->wiphy.mgmt_stypes;
1128 long start = 0, start_chan = 0, start_band = 0;
fe1abafd 1129 u32 features;
ee688b00 1130
3713b4e3
JB		 1131 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1132 if (!hdr)
1133 return -ENOBUFS;
ee688b00 1134
3713b4e3
JB		 1135 /* allow always using the variables */
1136 if (!split) {
1137 split_start = &start;
1138 band_start = &start_band;
1139 chan_start = &start_chan;
ee688b00 1140 }
ee688b00 1141
3713b4e3
JB		 1142 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1143 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1144 wiphy_name(&dev->wiphy)) ||
1145 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1146 cfg80211_rdev_list_generation))
8fdc621d
JB		 1147 goto nla_put_failure;
1148
3713b4e3
JB		 1149 switch (*split_start) {
1150 case 0:
1151 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1152 dev->wiphy.retry_short) ||
1153 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1154 dev->wiphy.retry_long) ||
1155 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1156 dev->wiphy.frag_threshold) ||
1157 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1158 dev->wiphy.rts_threshold) ||
1159 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1160 dev->wiphy.coverage_class) ||
1161 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1162 dev->wiphy.max_scan_ssids) ||
1163 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1164 dev->wiphy.max_sched_scan_ssids) ||
1165 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1166 dev->wiphy.max_scan_ie_len) ||
1167 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1168 dev->wiphy.max_sched_scan_ie_len) ||
1169 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1170 dev->wiphy.max_match_sets))
9360ffd1 1171 goto nla_put_failure;
3713b4e3
JB		 1172
1173 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1174 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1175 goto nla_put_failure;
3713b4e3
JB		 1176 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1177 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1178 goto nla_put_failure;
1179 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1180 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1181 goto nla_put_failure;
1182 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1183 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1184 goto nla_put_failure;
1185 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1186 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1187 goto nla_put_failure;
1188 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1189 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1190 goto nla_put_failure;
2f301ab2
SW		 1191 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1192 nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1193 goto nla_put_failure;
8fdc621d 1194
3713b4e3
JB		 1195 (*split_start)++;
1196 if (split)
1197 break;
1198 case 1:
1199 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1200 sizeof(u32) * dev->wiphy.n_cipher_suites,
1201 dev->wiphy.cipher_suites))
1202 goto nla_put_failure;
4745fc09 1203
3713b4e3
JB		 1204 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1205 dev->wiphy.max_num_pmkids))
1206 goto nla_put_failure;
b23aa676 1207
3713b4e3
JB		 1208 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1209 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1210 goto nla_put_failure;
b23aa676 1211
3713b4e3
JB		 1212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1213 dev->wiphy.available_antennas_tx) ||
1214 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1215 dev->wiphy.available_antennas_rx))
9360ffd1 1216 goto nla_put_failure;
b23aa676 1217
3713b4e3
JB		 1218 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1219 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1220 dev->wiphy.probe_resp_offload))
1221 goto nla_put_failure;
8fdc621d 1222
3713b4e3
JB		 1223 if ((dev->wiphy.available_antennas_tx ||
1224 dev->wiphy.available_antennas_rx) &&
1225 dev->ops->get_antenna) {
1226 u32 tx_ant = 0, rx_ant = 0;
1227 int res;
1228 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1229 if (!res) {
1230 if (nla_put_u32(msg,
1231 NL80211_ATTR_WIPHY_ANTENNA_TX,
1232 tx_ant) ||
1233 nla_put_u32(msg,
1234 NL80211_ATTR_WIPHY_ANTENNA_RX,
1235 rx_ant))
1236 goto nla_put_failure;
1237 }
1238 }
a293911d 1239
3713b4e3
JB		 1240 (*split_start)++;
1241 if (split)
1242 break;
1243 case 2:
1244 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1245 dev->wiphy.interface_modes))
1246 goto nla_put_failure;
1247 (*split_start)++;
1248 if (split)
1249 break;
1250 case 3:
1251 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1252 if (!nl_bands)
1253 goto nla_put_failure;
f7ca38df 1254
3713b4e3
JB		 1255 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1256 struct ieee80211_supported_band *sband;
2e161f78 1257
3713b4e3 1258 sband = dev->wiphy.bands[band];
2e161f78 1259
3713b4e3
JB		 1260 if (!sband)
1261 continue;
1262
1263 nl_band = nla_nest_start(msg, band);
1264 if (!nl_band)
2e161f78 1265 goto nla_put_failure;
3713b4e3
JB		 1266
1267 switch (*chan_start) {
1268 case 0:
1269 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1270 goto nla_put_failure;
3713b4e3
JB		 1271 (*chan_start)++;
1272 if (split)
1273 break;
1274 default:
1275 /* add frequencies */
1276 nl_freqs = nla_nest_start(
1277 msg, NL80211_BAND_ATTR_FREQS);
1278 if (!nl_freqs)
1279 goto nla_put_failure;
1280
1281 for (i = *chan_start - 1;
1282 i < sband->n_channels;
1283 i++) {
1284 nl_freq = nla_nest_start(msg, i);
1285 if (!nl_freq)
1286 goto nla_put_failure;
1287
1288 chan = &sband->channels[i];
1289
cdc89b97
JB		 1290 if (nl80211_msg_put_channel(msg, chan,
1291 split))
3713b4e3
JB		 1292 goto nla_put_failure;
1293
1294 nla_nest_end(msg, nl_freq);
1295 if (split)
1296 break;
1297 }
1298 if (i < sband->n_channels)
1299 *chan_start = i + 2;
1300 else
1301 *chan_start = 0;
1302 nla_nest_end(msg, nl_freqs);
1303 }
1304
1305 nla_nest_end(msg, nl_band);
1306
1307 if (split) {
1308 /* start again here */
1309 if (*chan_start)
1310 band--;
1311 break;
2e161f78 1312 }
2e161f78 1313 }
3713b4e3 1314 nla_nest_end(msg, nl_bands);
2e161f78 1315
3713b4e3
JB		 1316 if (band < IEEE80211_NUM_BANDS)
1317 *band_start = band + 1;
1318 else
1319 *band_start = 0;
74b70a4e 1320
3713b4e3
JB		 1321 /* if bands & channels are done, continue outside */
1322 if (*band_start == 0 && *chan_start == 0)
1323 (*split_start)++;
1324 if (split)
1325 break;
1326 case 4:
1327 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1328 if (!nl_cmds)
2e161f78
JB		 1329 goto nla_put_failure;
1330
3713b4e3
JB		 1331 i = 0;
1332#define CMD(op, n) \
1333 do { \
1334 if (dev->ops->op) { \
1335 i++; \
1336 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1337 goto nla_put_failure; \
1338 } \
1339 } while (0)
1340
1341 CMD(add_virtual_intf, NEW_INTERFACE);
1342 CMD(change_virtual_intf, SET_INTERFACE);
1343 CMD(add_key, NEW_KEY);
1344 CMD(start_ap, START_AP);
1345 CMD(add_station, NEW_STATION);
1346 CMD(add_mpath, NEW_MPATH);
1347 CMD(update_mesh_config, SET_MESH_CONFIG);
1348 CMD(change_bss, SET_BSS);
1349 CMD(auth, AUTHENTICATE);
1350 CMD(assoc, ASSOCIATE);
1351 CMD(deauth, DEAUTHENTICATE);
1352 CMD(disassoc, DISASSOCIATE);
1353 CMD(join_ibss, JOIN_IBSS);
1354 CMD(join_mesh, JOIN_MESH);
1355 CMD(set_pmksa, SET_PMKSA);
1356 CMD(del_pmksa, DEL_PMKSA);
1357 CMD(flush_pmksa, FLUSH_PMKSA);
1358 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1359 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1360 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1361 CMD(mgmt_tx, FRAME);
1362 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1363 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1364 i++;
1365 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1366 goto nla_put_failure;
2e161f78 1367 }
3713b4e3
JB		 1368 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1369 dev->ops->join_mesh) {
1370 i++;
1371 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1372 goto nla_put_failure;
1373 }
1374 CMD(set_wds_peer, SET_WDS_PEER);
1375 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1376 CMD(tdls_mgmt, TDLS_MGMT);
1377 CMD(tdls_oper, TDLS_OPER);
1378 }
1379 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1380 CMD(sched_scan_start, START_SCHED_SCAN);
1381 CMD(probe_client, PROBE_CLIENT);
1382 CMD(set_noack_map, SET_NOACK_MAP);
1383 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1384 i++;
1385 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1386 goto nla_put_failure;
1387 }
1388 CMD(start_p2p_device, START_P2P_DEVICE);
1389 CMD(set_mcast_rate, SET_MCAST_RATE);
5de17984
AS		 1390 if (split) {
1391 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1392 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1393 }
2e161f78 1394
3713b4e3
JB		 1395#ifdef CONFIG_NL80211_TESTMODE
1396 CMD(testmode_cmd, TESTMODE);
1397#endif
ff1b6e69 1398
3713b4e3 1399#undef CMD
ff1b6e69 1400
3713b4e3
JB		 1401 if (dev->ops->connect || dev->ops->auth) {
1402 i++;
1403 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1404 goto nla_put_failure;
ff1b6e69
JB		 1405 }
1406
3713b4e3
JB		 1407 if (dev->ops->disconnect || dev->ops->deauth) {
1408 i++;
1409 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1410 goto nla_put_failure;
1411 }
1412
1413 nla_nest_end(msg, nl_cmds);
1414 (*split_start)++;
1415 if (split)
1416 break;
1417 case 5:
1418 if (dev->ops->remain_on_channel &&
1419 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1420 nla_put_u32(msg,
1421 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1422 dev->wiphy.max_remain_on_channel_duration))
1423 goto nla_put_failure;
1424
1425 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1426 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1427 goto nla_put_failure;
1428
1429 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1430 goto nla_put_failure;
1431 (*split_start)++;
1432 if (split)
1433 break;
1434 case 6:
1435#ifdef CONFIG_PM
b56cf720 1436 if (nl80211_send_wowlan(msg, dev, split))
3713b4e3
JB		 1437 goto nla_put_failure;
1438 (*split_start)++;
1439 if (split)
1440 break;
1441#else
1442 (*split_start)++;
dfb89c56 1443#endif
3713b4e3
JB		 1444 case 7:
1445 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1446 dev->wiphy.software_iftypes))
1447 goto nla_put_failure;
ff1b6e69 1448
cdc89b97 1449 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
3713b4e3 1450 goto nla_put_failure;
7527a782 1451
3713b4e3
JB		 1452 (*split_start)++;
1453 if (split)
1454 break;
1455 case 8:
1456 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1457 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1458 dev->wiphy.ap_sme_capa))
1459 goto nla_put_failure;
7527a782 1460
fe1abafd
JB		 1461 features = dev->wiphy.features;
1462 /*
1463 * We can only add the per-channel limit information if the
1464 * dump is split, otherwise it makes it too big. Therefore
1465 * only advertise it in that case.
1466 */
1467 if (split)
1468 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1469 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1470 goto nla_put_failure;
562a7480 1471
3713b4e3
JB		 1472 if (dev->wiphy.ht_capa_mod_mask &&
1473 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1474 sizeof(*dev->wiphy.ht_capa_mod_mask),
1475 dev->wiphy.ht_capa_mod_mask))
1476 goto nla_put_failure;
1f074bd8 1477
3713b4e3
JB		 1478 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1479 dev->wiphy.max_acl_mac_addrs &&
1480 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1481 dev->wiphy.max_acl_mac_addrs))
1482 goto nla_put_failure;
7e7c8926 1483
3713b4e3
JB		 1484 /*
1485 * Any information below this point is only available to
1486 * applications that can deal with it being split. This
1487 * helps ensure that newly added capabilities don't break
1488 * older tools by overrunning their buffers.
1489 *
1490 * We still increment split_start so that in the split
1491 * case we'll continue with more data in the next round,
1492 * but break unconditionally so unsplit data stops here.
1493 */
1494 (*split_start)++;
1495 break;
1496 case 9:
fe1abafd
JB		 1497 if (dev->wiphy.extended_capabilities &&
1498 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1499 dev->wiphy.extended_capabilities_len,
1500 dev->wiphy.extended_capabilities) ||
1501 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1502 dev->wiphy.extended_capabilities_len,
1503 dev->wiphy.extended_capabilities_mask)))
1504 goto nla_put_failure;
a50df0c4 1505
ee2aca34
JB		 1506 if (dev->wiphy.vht_capa_mod_mask &&
1507 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1508 sizeof(*dev->wiphy.vht_capa_mod_mask),
1509 dev->wiphy.vht_capa_mod_mask))
1510 goto nla_put_failure;
1511
3713b4e3
JB		 1512 /* done */
1513 *split_start = 0;
1514 break;
1515 }
55682965
JB		 1516 return genlmsg_end(msg, hdr);
1517
1518 nla_put_failure:
bc3ed28c
TG		 1519 genlmsg_cancel(msg, hdr);
1520 return -EMSGSIZE;
55682965
JB		 1521}
1522
1523static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1524{
645e77de 1525 int idx = 0, ret;
55682965
JB		 1526 int start = cb->args[0];
1527 struct cfg80211_registered_device *dev;
3713b4e3
JB		 1528 s64 filter_wiphy = -1;
1529 bool split = false;
3a5a423b 1530 struct nlattr **tb;
3713b4e3 1531 int res;
55682965 1532
3a5a423b
JB		 1533 /* will be zeroed in nlmsg_parse() */
1534 tb = kmalloc(sizeof(*tb) * (NL80211_ATTR_MAX + 1), GFP_KERNEL);
1535 if (!tb)
1536 return -ENOMEM;
1537
5fe231e8 1538 rtnl_lock();
3713b4e3 1539 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
3a5a423b 1540 tb, NL80211_ATTR_MAX, nl80211_policy);
3713b4e3
JB		 1541 if (res == 0) {
1542 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1543 if (tb[NL80211_ATTR_WIPHY])
1544 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1545 if (tb[NL80211_ATTR_WDEV])
1546 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1547 if (tb[NL80211_ATTR_IFINDEX]) {
1548 struct net_device *netdev;
1549 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1550
1551 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
940d0ac9
JB		 1552 if (!netdev) {
1553 rtnl_unlock();
3a5a423b 1554 kfree(tb);
3713b4e3 1555 return -ENODEV;
940d0ac9 1556 }
3713b4e3
JB		 1557 if (netdev->ieee80211_ptr) {
1558 dev = wiphy_to_dev(
1559 netdev->ieee80211_ptr->wiphy);
1560 filter_wiphy = dev->wiphy_idx;
1561 }
1562 dev_put(netdev);
1563 }
1564 }
3a5a423b 1565 kfree(tb);
3713b4e3 1566
79c97e97 1567 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1568 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1569 continue;
b4637271 1570 if (++idx <= start)
55682965 1571 continue;
3713b4e3
JB		 1572 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1573 continue;
1574 /* attempt to fit multiple wiphy data chunks into the skb */
1575 do {
1576 ret = nl80211_send_wiphy(dev, skb,
1577 NETLINK_CB(cb->skb).portid,
1578 cb->nlh->nlmsg_seq,
1579 NLM_F_MULTI,
1580 split, &cb->args[1],
1581 &cb->args[2],
1582 &cb->args[3]);
1583 if (ret < 0) {
1584 /*
1585 * If sending the wiphy data didn't fit (ENOBUFS
1586 * or EMSGSIZE returned), this SKB is still
1587 * empty (so it's not too big because another
1588 * wiphy dataset is already in the skb) and
1589 * we've not tried to adjust the dump allocation
1590 * yet ... then adjust the alloc size to be
1591 * bigger, and return 1 but with the empty skb.
1592 * This results in an empty message being RX'ed
1593 * in userspace, but that is ignored.
1594 *
1595 * We can then retry with the larger buffer.
1596 */
1597 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1598 !skb->len &&
1599 cb->min_dump_alloc < 4096) {
1600 cb->min_dump_alloc = 4096;
940d0ac9 1601 rtnl_unlock();
3713b4e3
JB		 1602 return 1;
1603 }
1604 idx--;
1605 break;
645e77de 1606 }
3713b4e3
JB		 1607 } while (cb->args[1] > 0);
1608 break;
55682965 1609 }
5fe231e8 1610 rtnl_unlock();
55682965
JB		 1611
1612 cb->args[0] = idx;
1613
1614 return skb->len;
1615}
1616
1617static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1618{
1619 struct sk_buff *msg;
4c476991 1620 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1621
645e77de 1622 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1623 if (!msg)
4c476991 1624 return -ENOMEM;
55682965 1625
3713b4e3
JB		 1626 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1627 false, NULL, NULL, NULL) < 0) {
4c476991
JB		 1628 nlmsg_free(msg);
1629 return -ENOBUFS;
1630 }
55682965 1631
134e6375 1632 return genlmsg_reply(msg, info);
55682965
JB		 1633}
1634
31888487
JM		 1635static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1636 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1637 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1638 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1639 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1640 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1641};
1642
1643static int parse_txq_params(struct nlattr *tb[],
1644 struct ieee80211_txq_params *txq_params)
1645{
a3304b0a 1646 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1647 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1648 !tb[NL80211_TXQ_ATTR_AIFS])
1649 return -EINVAL;
1650
a3304b0a 1651 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1652 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1653 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1654 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1655 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1656
a3304b0a
JB		 1657 if (txq_params->ac >= NL80211_NUM_ACS)
1658 return -EINVAL;
1659
31888487
JM		 1660 return 0;
1661}
1662
f444de05
JB		 1663static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1664{
1665 /*
cc1d2806
JB		 1666 * You can only set the channel explicitly for WDS interfaces,
1667 * all others have their channel managed via their respective
1668 * "establish a connection" command (connect, join, ...)
1669 *
1670 * For AP/GO and mesh mode, the channel can be set with the
1671 * channel userspace API, but is only stored and passed to the
1672 * low-level driver when the AP starts or the mesh is joined.
1673 * This is for backward compatibility, userspace can also give
1674 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1675 *
1676 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1677 * whatever else is going on, so they have their own special
1678 * operation to set the monitor channel if possible.
f444de05
JB		 1679 */
1680 return !wdev ||
1681 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1682 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1683 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1684 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1685}
1686
683b6d3b
JB		 1687static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1688 struct genl_info *info,
1689 struct cfg80211_chan_def *chandef)
1690{
dbeca2ea 1691 u32 control_freq;
683b6d3b
JB		 1692
1693 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1694 return -EINVAL;
1695
1696 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1697
1698 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1699 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1700 chandef->center_freq1 = control_freq;
1701 chandef->center_freq2 = 0;
683b6d3b
JB		 1702
1703 /* Primary channel not allowed */
1704 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1705 return -EINVAL;
1706
3d9d1d66
JB		 1707 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1708 enum nl80211_channel_type chantype;
1709
1710 chantype = nla_get_u32(
1711 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1712
1713 switch (chantype) {
1714 case NL80211_CHAN_NO_HT:
1715 case NL80211_CHAN_HT20:
1716 case NL80211_CHAN_HT40PLUS:
1717 case NL80211_CHAN_HT40MINUS:
1718 cfg80211_chandef_create(chandef, chandef->chan,
1719 chantype);
1720 break;
1721 default:
1722 return -EINVAL;
1723 }
1724 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1725 chandef->width =
1726 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1727 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1728 chandef->center_freq1 =
1729 nla_get_u32(
1730 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1731 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1732 chandef->center_freq2 =
1733 nla_get_u32(
1734 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1735 }
1736
9f5e8f6e 1737 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1738 return -EINVAL;
1739
9f5e8f6e
JB		 1740 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1741 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1742 return -EINVAL;
1743
2f301ab2
SW		 1744 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1745 chandef->width == NL80211_CHAN_WIDTH_10) &&
1746 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1747 return -EINVAL;
1748
683b6d3b
JB		 1749 return 0;
1750}
1751
f444de05
JB		 1752static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1753 struct wireless_dev *wdev,
1754 struct genl_info *info)
1755{
683b6d3b 1756 struct cfg80211_chan_def chandef;
f444de05 1757 int result;
e8c9bd5b
JB		 1758 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1759
1760 if (wdev)
1761 iftype = wdev->iftype;
f444de05 1762
f444de05
JB		 1763 if (!nl80211_can_set_dev_channel(wdev))
1764 return -EOPNOTSUPP;
1765
683b6d3b
JB		 1766 result = nl80211_parse_chandef(rdev, info, &chandef);
1767 if (result)
1768 return result;
f444de05 1769
e8c9bd5b 1770 switch (iftype) {
aa430da4
JB		 1771 case NL80211_IFTYPE_AP:
1772 case NL80211_IFTYPE_P2P_GO:
1773 if (wdev->beacon_interval) {
1774 result = -EBUSY;
1775 break;
1776 }
683b6d3b 1777 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1778 result = -EINVAL;
1779 break;
1780 }
683b6d3b 1781 wdev->preset_chandef = chandef;
aa430da4
JB		 1782 result = 0;
1783 break;
cc1d2806 1784 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1785 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1786 break;
e8c9bd5b 1787 case NL80211_IFTYPE_MONITOR:
683b6d3b 1788 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1789 break;
aa430da4 1790 default:
e8c9bd5b 1791 result = -EINVAL;
f444de05 1792 }
f444de05
JB		 1793
1794 return result;
1795}
1796
1797static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1798{
4c476991
JB		 1799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1800 struct net_device *netdev = info->user_ptr[1];
f444de05 1801
4c476991 1802 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1803}
1804
e8347eba
BJ		 1805static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1806{
43b19952
JB		 1807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1808 struct net_device *dev = info->user_ptr[1];
1809 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1810 const u8 *bssid;
e8347eba
BJ		 1811
1812 if (!info->attrs[NL80211_ATTR_MAC])
1813 return -EINVAL;
1814
43b19952
JB		 1815 if (netif_running(dev))
1816 return -EBUSY;
e8347eba 1817
43b19952
JB		 1818 if (!rdev->ops->set_wds_peer)
1819 return -EOPNOTSUPP;
e8347eba 1820
43b19952
JB		 1821 if (wdev->iftype != NL80211_IFTYPE_WDS)
1822 return -EOPNOTSUPP;
e8347eba
BJ		 1823
1824 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1825 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1826}
1827
1828
55682965
JB		 1829static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1830{
1831 struct cfg80211_registered_device *rdev;
f444de05
JB		 1832 struct net_device *netdev = NULL;
1833 struct wireless_dev *wdev;
a1e567c8 1834 int result = 0, rem_txq_params = 0;
31888487 1835 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1836 u32 changed;
1837 u8 retry_short = 0, retry_long = 0;
1838 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1839 u8 coverage_class = 0;
55682965 1840
5fe231e8
JB		 1841 ASSERT_RTNL();
1842
f444de05
JB		 1843 /*
1844 * Try to find the wiphy and netdev. Normally this
1845 * function shouldn't need the netdev, but this is
1846 * done for backward compatibility -- previously
1847 * setting the channel was done per wiphy, but now
1848 * it is per netdev. Previous userland like hostapd
1849 * also passed a netdev to set_wiphy, so that it is
1850 * possible to let that go to the right netdev!
1851 */
4bbf4d56 1852
f444de05
JB		 1853 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1854 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1855
1856 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1857 if (netdev && netdev->ieee80211_ptr)
f444de05 1858 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1859 else
f444de05 1860 netdev = NULL;
4bbf4d56
JB		 1861 }
1862
f444de05 1863 if (!netdev) {
878d9ec7
JB		 1864 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1865 info->attrs);
5fe231e8 1866 if (IS_ERR(rdev))
4c476991 1867 return PTR_ERR(rdev);
f444de05
JB		 1868 wdev = NULL;
1869 netdev = NULL;
1870 result = 0;
71fe96bf 1871 } else
f444de05 1872 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1873
1874 /*
1875 * end workaround code, by now the rdev is available
1876 * and locked, and wdev may or may not be NULL.
1877 */
4bbf4d56
JB		 1878
1879 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1880 result = cfg80211_dev_rename(
1881 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1882
4bbf4d56
JB		 1883 if (result)
1884 goto bad_res;
31888487
JM		 1885
1886 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1887 struct ieee80211_txq_params txq_params;
1888 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1889
1890 if (!rdev->ops->set_txq_params) {
1891 result = -EOPNOTSUPP;
1892 goto bad_res;
1893 }
1894
f70f01c2
EP		 1895 if (!netdev) {
1896 result = -EINVAL;
1897 goto bad_res;
1898 }
1899
133a3ff2
JB		 1900 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1901 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1902 result = -EINVAL;
1903 goto bad_res;
1904 }
1905
2b5f8b0b
JB		 1906 if (!netif_running(netdev)) {
1907 result = -ENETDOWN;
1908 goto bad_res;
1909 }
1910
31888487
JM		 1911 nla_for_each_nested(nl_txq_params,
1912 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1913 rem_txq_params) {
1914 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1915 nla_data(nl_txq_params),
1916 nla_len(nl_txq_params),
1917 txq_params_policy);
1918 result = parse_txq_params(tb, &txq_params);
1919 if (result)
1920 goto bad_res;
1921
e35e4d28
HG		 1922 result = rdev_set_txq_params(rdev, netdev,
1923 &txq_params);
31888487
JM		 1924 if (result)
1925 goto bad_res;
1926 }
1927 }
55682965 1928
72bdcf34 1929 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1930 result = __nl80211_set_channel(rdev,
1931 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1932 info);
72bdcf34
JM		 1933 if (result)
1934 goto bad_res;
1935 }
1936
98d2ff8b 1937 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1938 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1939 enum nl80211_tx_power_setting type;
1940 int idx, mbm = 0;
1941
c8442118
JB		 1942 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1943 txp_wdev = NULL;
1944
98d2ff8b 1945 if (!rdev->ops->set_tx_power) {
60ea385f 1946 result = -EOPNOTSUPP;
98d2ff8b
JO		 1947 goto bad_res;
1948 }
1949
1950 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1951 type = nla_get_u32(info->attrs[idx]);
1952
1953 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1954 (type != NL80211_TX_POWER_AUTOMATIC)) {
1955 result = -EINVAL;
1956 goto bad_res;
1957 }
1958
1959 if (type != NL80211_TX_POWER_AUTOMATIC) {
1960 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1961 mbm = nla_get_u32(info->attrs[idx]);
1962 }
1963
c8442118 1964 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1965 if (result)
1966 goto bad_res;
1967 }
1968
afe0cbf8
BR		 1969 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1970 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1971 u32 tx_ant, rx_ant;
7f531e03
BR		 1972 if ((!rdev->wiphy.available_antennas_tx &&
1973 !rdev->wiphy.available_antennas_rx) ||
1974 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1975 result = -EOPNOTSUPP;
1976 goto bad_res;
1977 }
1978
1979 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1980 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1981
a7ffac95 1982 /* reject antenna configurations which don't match the
7f531e03
BR		 1983 * available antenna masks, except for the "all" mask */
1984 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1985 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1986 result = -EINVAL;
1987 goto bad_res;
1988 }
1989
7f531e03
BR		 1990 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1991 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1992
e35e4d28 1993 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1994 if (result)
1995 goto bad_res;
1996 }
1997
b9a5f8ca
JM		 1998 changed = 0;
1999
2000 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2001 retry_short = nla_get_u8(
2002 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2003 if (retry_short == 0) {
2004 result = -EINVAL;
2005 goto bad_res;
2006 }
2007 changed |= WIPHY_PARAM_RETRY_SHORT;
2008 }
2009
2010 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2011 retry_long = nla_get_u8(
2012 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2013 if (retry_long == 0) {
2014 result = -EINVAL;
2015 goto bad_res;
2016 }
2017 changed |= WIPHY_PARAM_RETRY_LONG;
2018 }
2019
2020 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2021 frag_threshold = nla_get_u32(
2022 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2023 if (frag_threshold < 256) {
2024 result = -EINVAL;
2025 goto bad_res;
2026 }
2027 if (frag_threshold != (u32) -1) {
2028 /*
2029 * Fragments (apart from the last one) are required to
2030 * have even length. Make the fragmentation code
2031 * simpler by stripping LSB should someone try to use
2032 * odd threshold value.
2033 */
2034 frag_threshold &= ~0x1;
2035 }
2036 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2037 }
2038
2039 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2040 rts_threshold = nla_get_u32(
2041 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2042 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2043 }
2044
81077e82
LT		 2045 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2046 coverage_class = nla_get_u8(
2047 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2048 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2049 }
2050
b9a5f8ca
JM		 2051 if (changed) {
2052 u8 old_retry_short, old_retry_long;
2053 u32 old_frag_threshold, old_rts_threshold;
81077e82 2054 u8 old_coverage_class;
b9a5f8ca
JM		 2055
2056 if (!rdev->ops->set_wiphy_params) {
2057 result = -EOPNOTSUPP;
2058 goto bad_res;
2059 }
2060
2061 old_retry_short = rdev->wiphy.retry_short;
2062 old_retry_long = rdev->wiphy.retry_long;
2063 old_frag_threshold = rdev->wiphy.frag_threshold;
2064 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2065 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2066
2067 if (changed & WIPHY_PARAM_RETRY_SHORT)
2068 rdev->wiphy.retry_short = retry_short;
2069 if (changed & WIPHY_PARAM_RETRY_LONG)
2070 rdev->wiphy.retry_long = retry_long;
2071 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2072 rdev->wiphy.frag_threshold = frag_threshold;
2073 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2074 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2075 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2076 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2077
e35e4d28 2078 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2079 if (result) {
2080 rdev->wiphy.retry_short = old_retry_short;
2081 rdev->wiphy.retry_long = old_retry_long;
2082 rdev->wiphy.frag_threshold = old_frag_threshold;
2083 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2084 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2085 }
2086 }
72bdcf34 2087
306d6112 2088 bad_res:
f444de05
JB		 2089 if (netdev)
2090 dev_put(netdev);
55682965
JB		 2091 return result;
2092}
2093
71bbc994
JB		 2094static inline u64 wdev_id(struct wireless_dev *wdev)
2095{
2096 return (u64)wdev->identifier |
2097 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2098}
55682965 2099
683b6d3b
JB		 2100static int nl80211_send_chandef(struct sk_buff *msg,
2101 struct cfg80211_chan_def *chandef)
2102{
9f5e8f6e 2103 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2104
683b6d3b
JB		 2105 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2106 chandef->chan->center_freq))
2107 return -ENOBUFS;
3d9d1d66
JB		 2108 switch (chandef->width) {
2109 case NL80211_CHAN_WIDTH_20_NOHT:
2110 case NL80211_CHAN_WIDTH_20:
2111 case NL80211_CHAN_WIDTH_40:
2112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2113 cfg80211_get_chandef_type(chandef)))
2114 return -ENOBUFS;
2115 break;
2116 default:
2117 break;
2118 }
2119 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2120 return -ENOBUFS;
2121 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2122 return -ENOBUFS;
2123 if (chandef->center_freq2 &&
2124 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2125 return -ENOBUFS;
2126 return 0;
2127}
2128
15e47304 2129static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2130 struct cfg80211_registered_device *rdev,
72fb2abc 2131 struct wireless_dev *wdev)
55682965 2132{
72fb2abc 2133 struct net_device *dev = wdev->netdev;
55682965
JB		 2134 void *hdr;
2135
15e47304 2136 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2137 if (!hdr)
2138 return -1;
2139
72fb2abc
JB		 2140 if (dev &&
2141 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2142 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2143 goto nla_put_failure;
2144
2145 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2146 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2147 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2148 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2149 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2150 rdev->devlist_generation ^
2151 (cfg80211_rdev_list_generation << 2)))
2152 goto nla_put_failure;
f5ea9120 2153
5b7ccaf3 2154 if (rdev->ops->get_channel) {
683b6d3b
JB		 2155 int ret;
2156 struct cfg80211_chan_def chandef;
2157
2158 ret = rdev_get_channel(rdev, wdev, &chandef);
2159 if (ret == 0) {
2160 if (nl80211_send_chandef(msg, &chandef))
2161 goto nla_put_failure;
2162 }
d91df0e3
PF		 2163 }
2164
b84e7a05
AQ		 2165 if (wdev->ssid_len) {
2166 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2167 goto nla_put_failure;
2168 }
2169
55682965
JB		 2170 return genlmsg_end(msg, hdr);
2171
2172 nla_put_failure:
bc3ed28c
TG		 2173 genlmsg_cancel(msg, hdr);
2174 return -EMSGSIZE;
55682965
JB		 2175}
2176
2177static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2178{
2179 int wp_idx = 0;
2180 int if_idx = 0;
2181 int wp_start = cb->args[0];
2182 int if_start = cb->args[1];
f5ea9120 2183 struct cfg80211_registered_device *rdev;
55682965
JB		 2184 struct wireless_dev *wdev;
2185
5fe231e8 2186 rtnl_lock();
f5ea9120
JB		 2187 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2188 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2189 continue;
bba95fef
JB		 2190 if (wp_idx < wp_start) {
2191 wp_idx++;
55682965 2192 continue;
bba95fef 2193 }
55682965
JB		 2194 if_idx = 0;
2195
89a54e48 2196 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2197 if (if_idx < if_start) {
2198 if_idx++;
55682965 2199 continue;
bba95fef 2200 }
15e47304 2201 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2202 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2203 rdev, wdev) < 0) {
bba95fef
JB		 2204 goto out;
2205 }
2206 if_idx++;
55682965 2207 }
bba95fef
JB		 2208
2209 wp_idx++;
55682965 2210 }
bba95fef 2211 out:
5fe231e8 2212 rtnl_unlock();
55682965
JB		 2213
2214 cb->args[0] = wp_idx;
2215 cb->args[1] = if_idx;
2216
2217 return skb->len;
2218}
2219
2220static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2221{
2222 struct sk_buff *msg;
4c476991 2223 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2224 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2225
fd2120ca 2226 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2227 if (!msg)
4c476991 2228 return -ENOMEM;
55682965 2229
15e47304 2230 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2231 dev, wdev) < 0) {
4c476991
JB		 2232 nlmsg_free(msg);
2233 return -ENOBUFS;
2234 }
55682965 2235
134e6375 2236 return genlmsg_reply(msg, info);
55682965
JB		 2237}
2238
66f7ac50
MW		 2239static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2240 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2241 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2242 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2243 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2244 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2245 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2246};
2247
2248static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2249{
2250 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2251 int flag;
2252
2253 *mntrflags = 0;
2254
2255 if (!nla)
2256 return -EINVAL;
2257
2258 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2259 nla, mntr_flags_policy))
2260 return -EINVAL;
2261
2262 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2263 if (flags[flag])
2264 *mntrflags |= (1<<flag);
2265
2266 return 0;
2267}
2268
9bc383de 2269static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2270 struct net_device *netdev, u8 use_4addr,
2271 enum nl80211_iftype iftype)
9bc383de 2272{
ad4bb6f8 2273 if (!use_4addr) {
f350a0a8 2274 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2275 return -EBUSY;
9bc383de 2276 return 0;
ad4bb6f8 2277 }
9bc383de
JB		 2278
2279 switch (iftype) {
2280 case NL80211_IFTYPE_AP_VLAN:
2281 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2282 return 0;
2283 break;
2284 case NL80211_IFTYPE_STATION:
2285 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2286 return 0;
2287 break;
2288 default:
2289 break;
2290 }
2291
2292 return -EOPNOTSUPP;
2293}
2294
55682965
JB		 2295static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2296{
4c476991 2297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2298 struct vif_params params;
e36d56b6 2299 int err;
04a773ad 2300 enum nl80211_iftype otype, ntype;
4c476991 2301 struct net_device *dev = info->user_ptr[1];
92ffe055 2302 u32 _flags, *flags = NULL;
ac7f9cfa 2303 bool change = false;
55682965 2304
2ec600d6
LCC		 2305 memset(&params, 0, sizeof(params));
2306
04a773ad 2307 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2308
723b038d 2309 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2310 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2311 if (otype != ntype)
ac7f9cfa 2312 change = true;
4c476991
JB		 2313 if (ntype > NL80211_IFTYPE_MAX)
2314 return -EINVAL;
723b038d
JB		 2315 }
2316
92ffe055 2317 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2318 struct wireless_dev *wdev = dev->ieee80211_ptr;
2319
4c476991
JB		 2320 if (ntype != NL80211_IFTYPE_MESH_POINT)
2321 return -EINVAL;
29cbe68c
JB		 2322 if (netif_running(dev))
2323 return -EBUSY;
2324
2325 wdev_lock(wdev);
2326 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2327 IEEE80211_MAX_MESH_ID_LEN);
2328 wdev->mesh_id_up_len =
2329 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2330 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2331 wdev->mesh_id_up_len);
2332 wdev_unlock(wdev);
2ec600d6
LCC		 2333 }
2334
8b787643
FF		 2335 if (info->attrs[NL80211_ATTR_4ADDR]) {
2336 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2337 change = true;
ad4bb6f8 2338 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2339 if (err)
4c476991 2340 return err;
8b787643
FF		 2341 } else {
2342 params.use_4addr = -1;
2343 }
2344
92ffe055 2345 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2346 if (ntype != NL80211_IFTYPE_MONITOR)
2347 return -EINVAL;
92ffe055
JB		 2348 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2349 &_flags);
ac7f9cfa 2350 if (err)
4c476991 2351 return err;
ac7f9cfa
JB		 2352
2353 flags = &_flags;
2354 change = true;
92ffe055 2355 }
3b85875a 2356
e057d3c3
FF		 2357 if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
2358 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2359 return -EOPNOTSUPP;
2360
ac7f9cfa 2361 if (change)
3d54d255 2362 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2363 else
2364 err = 0;
60719ffd 2365
9bc383de
JB		 2366 if (!err && params.use_4addr != -1)
2367 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2368
55682965
JB		 2369 return err;
2370}
2371
2372static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2373{
4c476991 2374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2375 struct vif_params params;
84efbb84 2376 struct wireless_dev *wdev;
1c90f9d4 2377 struct sk_buff *msg;
55682965
JB		 2378 int err;
2379 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2380 u32 flags;
55682965 2381
2ec600d6
LCC		 2382 memset(&params, 0, sizeof(params));
2383
55682965
JB		 2384 if (!info->attrs[NL80211_ATTR_IFNAME])
2385 return -EINVAL;
2386
2387 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2388 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2389 if (type > NL80211_IFTYPE_MAX)
2390 return -EINVAL;
2391 }
2392
79c97e97 2393 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2394 !(rdev->wiphy.interface_modes & (1 << type)))
2395 return -EOPNOTSUPP;
55682965 2396
1c18f145
AS		 2397 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2398 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2399 ETH_ALEN);
2400 if (!is_valid_ether_addr(params.macaddr))
2401 return -EADDRNOTAVAIL;
2402 }
2403
9bc383de 2404 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2405 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2406 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2407 if (err)
4c476991 2408 return err;
9bc383de 2409 }
8b787643 2410
1c90f9d4
JB		 2411 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2412 if (!msg)
2413 return -ENOMEM;
2414
66f7ac50
MW		 2415 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2416 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2417 &flags);
e057d3c3
FF		 2418
2419 if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
2420 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2421 return -EOPNOTSUPP;
2422
e35e4d28
HG		 2423 wdev = rdev_add_virtual_intf(rdev,
2424 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2425 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2426 if (IS_ERR(wdev)) {
2427 nlmsg_free(msg);
84efbb84 2428 return PTR_ERR(wdev);
1c90f9d4 2429 }
2ec600d6 2430
98104fde
JB		 2431 switch (type) {
2432 case NL80211_IFTYPE_MESH_POINT:
2433 if (!info->attrs[NL80211_ATTR_MESH_ID])
2434 break;
29cbe68c
JB		 2435 wdev_lock(wdev);
2436 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2437 IEEE80211_MAX_MESH_ID_LEN);
2438 wdev->mesh_id_up_len =
2439 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2440 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2441 wdev->mesh_id_up_len);
2442 wdev_unlock(wdev);
98104fde
JB		 2443 break;
2444 case NL80211_IFTYPE_P2P_DEVICE:
2445 /*
2446 * P2P Device doesn't have a netdev, so doesn't go
2447 * through the netdev notifier and must be added here
2448 */
2449 mutex_init(&wdev->mtx);
2450 INIT_LIST_HEAD(&wdev->event_list);
2451 spin_lock_init(&wdev->event_lock);
2452 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2453 spin_lock_init(&wdev->mgmt_registrations_lock);
2454
98104fde
JB		 2455 wdev->identifier = ++rdev->wdev_id;
2456 list_add_rcu(&wdev->list, &rdev->wdev_list);
2457 rdev->devlist_generation++;
98104fde
JB		 2458 break;
2459 default:
2460 break;
29cbe68c
JB		 2461 }
2462
15e47304 2463 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2464 rdev, wdev) < 0) {
2465 nlmsg_free(msg);
2466 return -ENOBUFS;
2467 }
2468
2469 return genlmsg_reply(msg, info);
55682965
JB		 2470}
2471
2472static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2473{
4c476991 2474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2475 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2476
4c476991
JB		 2477 if (!rdev->ops->del_virtual_intf)
2478 return -EOPNOTSUPP;
55682965 2479
84efbb84
JB		 2480 /*
2481 * If we remove a wireless device without a netdev then clear
2482 * user_ptr[1] so that nl80211_post_doit won't dereference it
2483 * to check if it needs to do dev_put(). Otherwise it crashes
2484 * since the wdev has been freed, unlike with a netdev where
2485 * we need the dev_put() for the netdev to really be freed.
2486 */
2487 if (!wdev->netdev)
2488 info->user_ptr[1] = NULL;
2489
e35e4d28 2490 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2491}
2492
1d9d9213
SW		 2493static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2494{
2495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2496 struct net_device *dev = info->user_ptr[1];
2497 u16 noack_map;
2498
2499 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2500 return -EINVAL;
2501
2502 if (!rdev->ops->set_noack_map)
2503 return -EOPNOTSUPP;
2504
2505 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2506
e35e4d28 2507 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2508}
2509
41ade00f
JB		 2510struct get_key_cookie {
2511 struct sk_buff *msg;
2512 int error;
b9454e83 2513 int idx;
41ade00f
JB		 2514};
2515
2516static void get_key_callback(void *c, struct key_params *params)
2517{
b9454e83 2518 struct nlattr *key;
41ade00f
JB		 2519 struct get_key_cookie *cookie = c;
2520
9360ffd1
DM		 2521 if ((params->key &&
2522 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2523 params->key_len, params->key)) ||
2524 (params->seq &&
2525 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2526 params->seq_len, params->seq)) ||
2527 (params->cipher &&
2528 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2529 params->cipher)))
2530 goto nla_put_failure;
41ade00f 2531
b9454e83
JB		 2532 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2533 if (!key)
2534 goto nla_put_failure;
2535
9360ffd1
DM		 2536 if ((params->key &&
2537 nla_put(cookie->msg, NL80211_KEY_DATA,
2538 params->key_len, params->key)) ||
2539 (params->seq &&
2540 nla_put(cookie->msg, NL80211_KEY_SEQ,
2541 params->seq_len, params->seq)) ||
2542 (params->cipher &&
2543 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2544 params->cipher)))
2545 goto nla_put_failure;
b9454e83 2546
9360ffd1
DM		 2547 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2548 goto nla_put_failure;
b9454e83
JB		 2549
2550 nla_nest_end(cookie->msg, key);
2551
41ade00f
JB		 2552 return;
2553 nla_put_failure:
2554 cookie->error = 1;
2555}
2556
2557static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2558{
4c476991 2559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2560 int err;
4c476991 2561 struct net_device *dev = info->user_ptr[1];
41ade00f 2562 u8 key_idx = 0;
e31b8213
JB		 2563 const u8 *mac_addr = NULL;
2564 bool pairwise;
41ade00f
JB		 2565 struct get_key_cookie cookie = {
2566 .error = 0,
2567 };
2568 void *hdr;
2569 struct sk_buff *msg;
2570
2571 if (info->attrs[NL80211_ATTR_KEY_IDX])
2572 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2573
3cfcf6ac 2574 if (key_idx > 5)
41ade00f
JB		 2575 return -EINVAL;
2576
2577 if (info->attrs[NL80211_ATTR_MAC])
2578 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2579
e31b8213
JB		 2580 pairwise = !!mac_addr;
2581 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2582 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2583 if (kt >= NUM_NL80211_KEYTYPES)
2584 return -EINVAL;
2585 if (kt != NL80211_KEYTYPE_GROUP &&
2586 kt != NL80211_KEYTYPE_PAIRWISE)
2587 return -EINVAL;
2588 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2589 }
2590
4c476991
JB		 2591 if (!rdev->ops->get_key)
2592 return -EOPNOTSUPP;
41ade00f 2593
fd2120ca 2594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2595 if (!msg)
2596 return -ENOMEM;
41ade00f 2597
15e47304 2598 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2599 NL80211_CMD_NEW_KEY);
4c476991
JB		 2600 if (IS_ERR(hdr))
2601 return PTR_ERR(hdr);
41ade00f
JB		 2602
2603 cookie.msg = msg;
b9454e83 2604 cookie.idx = key_idx;
41ade00f 2605
9360ffd1
DM		 2606 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2607 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2608 goto nla_put_failure;
2609 if (mac_addr &&
2610 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2611 goto nla_put_failure;
41ade00f 2612
e31b8213
JB		 2613 if (pairwise && mac_addr &&
2614 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2615 return -ENOENT;
2616
e35e4d28
HG		 2617 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2618 get_key_callback);
41ade00f
JB		 2619
2620 if (err)
6c95e2a2 2621 goto free_msg;
41ade00f
JB		 2622
2623 if (cookie.error)
2624 goto nla_put_failure;
2625
2626 genlmsg_end(msg, hdr);
4c476991 2627 return genlmsg_reply(msg, info);
41ade00f
JB		 2628
2629 nla_put_failure:
2630 err = -ENOBUFS;
6c95e2a2 2631 free_msg:
41ade00f 2632 nlmsg_free(msg);
41ade00f
JB		 2633 return err;
2634}
2635
2636static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2637{
4c476991 2638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2639 struct key_parse key;
41ade00f 2640 int err;
4c476991 2641 struct net_device *dev = info->user_ptr[1];
41ade00f 2642
b9454e83
JB		 2643 err = nl80211_parse_key(info, &key);
2644 if (err)
2645 return err;
41ade00f 2646
b9454e83 2647 if (key.idx < 0)
41ade00f
JB		 2648 return -EINVAL;
2649
b9454e83
JB		 2650 /* only support setting default key */
2651 if (!key.def && !key.defmgmt)
41ade00f
JB		 2652 return -EINVAL;
2653
dbd2fd65 2654 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2655
dbd2fd65
JB		 2656 if (key.def) {
2657 if (!rdev->ops->set_default_key) {
2658 err = -EOPNOTSUPP;
2659 goto out;
2660 }
41ade00f 2661
dbd2fd65
JB		 2662 err = nl80211_key_allowed(dev->ieee80211_ptr);
2663 if (err)
2664 goto out;
2665
e35e4d28 2666 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2667 key.def_uni, key.def_multi);
2668
2669 if (err)
2670 goto out;
fffd0934 2671
3d23e349 2672#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2673 dev->ieee80211_ptr->wext.default_key = key.idx;
2674#endif
2675 } else {
2676 if (key.def_uni || !key.def_multi) {
2677 err = -EINVAL;
2678 goto out;
2679 }
2680
2681 if (!rdev->ops->set_default_mgmt_key) {
2682 err = -EOPNOTSUPP;
2683 goto out;
2684 }
2685
2686 err = nl80211_key_allowed(dev->ieee80211_ptr);
2687 if (err)
2688 goto out;
2689
e35e4d28 2690 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2691 if (err)
2692 goto out;
2693
2694#ifdef CONFIG_CFG80211_WEXT
2695 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2696#endif
dbd2fd65
JB		 2697 }
2698
2699 out:
fffd0934 2700 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2701
41ade00f
JB		 2702 return err;
2703}
2704
2705static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2706{
4c476991 2707 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2708 int err;
4c476991 2709 struct net_device *dev = info->user_ptr[1];
b9454e83 2710 struct key_parse key;
e31b8213 2711 const u8 *mac_addr = NULL;
41ade00f 2712
b9454e83
JB		 2713 err = nl80211_parse_key(info, &key);
2714 if (err)
2715 return err;
41ade00f 2716
b9454e83 2717 if (!key.p.key)
41ade00f
JB		 2718 return -EINVAL;
2719
41ade00f
JB		 2720 if (info->attrs[NL80211_ATTR_MAC])
2721 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2722
e31b8213
JB		 2723 if (key.type == -1) {
2724 if (mac_addr)
2725 key.type = NL80211_KEYTYPE_PAIRWISE;
2726 else
2727 key.type = NL80211_KEYTYPE_GROUP;
2728 }
2729
2730 /* for now */
2731 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2732 key.type != NL80211_KEYTYPE_GROUP)
2733 return -EINVAL;
2734
4c476991
JB		 2735 if (!rdev->ops->add_key)
2736 return -EOPNOTSUPP;
25e47c18 2737
e31b8213
JB		 2738 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2739 key.type == NL80211_KEYTYPE_PAIRWISE,
2740 mac_addr))
4c476991 2741 return -EINVAL;
41ade00f 2742
fffd0934
JB		 2743 wdev_lock(dev->ieee80211_ptr);
2744 err = nl80211_key_allowed(dev->ieee80211_ptr);
2745 if (!err)
e35e4d28
HG		 2746 err = rdev_add_key(rdev, dev, key.idx,
2747 key.type == NL80211_KEYTYPE_PAIRWISE,
2748 mac_addr, &key.p);
fffd0934 2749 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2750
41ade00f
JB		 2751 return err;
2752}
2753
2754static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2755{
4c476991 2756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2757 int err;
4c476991 2758 struct net_device *dev = info->user_ptr[1];
41ade00f 2759 u8 *mac_addr = NULL;
b9454e83 2760 struct key_parse key;
41ade00f 2761
b9454e83
JB		 2762 err = nl80211_parse_key(info, &key);
2763 if (err)
2764 return err;
41ade00f
JB		 2765
2766 if (info->attrs[NL80211_ATTR_MAC])
2767 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2768
e31b8213
JB		 2769 if (key.type == -1) {
2770 if (mac_addr)
2771 key.type = NL80211_KEYTYPE_PAIRWISE;
2772 else
2773 key.type = NL80211_KEYTYPE_GROUP;
2774 }
2775
2776 /* for now */
2777 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2778 key.type != NL80211_KEYTYPE_GROUP)
2779 return -EINVAL;
2780
4c476991
JB		 2781 if (!rdev->ops->del_key)
2782 return -EOPNOTSUPP;
41ade00f 2783
fffd0934
JB		 2784 wdev_lock(dev->ieee80211_ptr);
2785 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2786
2787 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2788 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2789 err = -ENOENT;
2790
fffd0934 2791 if (!err)
e35e4d28
HG		 2792 err = rdev_del_key(rdev, dev, key.idx,
2793 key.type == NL80211_KEYTYPE_PAIRWISE,
2794 mac_addr);
41ade00f 2795
3d23e349 2796#ifdef CONFIG_CFG80211_WEXT
08645126 2797 if (!err) {
b9454e83 2798 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2799 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2800 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2801 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2802 }
2803#endif
fffd0934 2804 wdev_unlock(dev->ieee80211_ptr);
08645126 2805
41ade00f
JB		 2806 return err;
2807}
2808
77765eaf
VT		 2809/* This function returns an error or the number of nested attributes */
2810static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2811{
2812 struct nlattr *attr;
2813 int n_entries = 0, tmp;
2814
2815 nla_for_each_nested(attr, nl_attr, tmp) {
2816 if (nla_len(attr) != ETH_ALEN)
2817 return -EINVAL;
2818
2819 n_entries++;
2820 }
2821
2822 return n_entries;
2823}
2824
2825/*
2826 * This function parses ACL information and allocates memory for ACL data.
2827 * On successful return, the calling function is responsible to free the
2828 * ACL buffer returned by this function.
2829 */
2830static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2831 struct genl_info *info)
2832{
2833 enum nl80211_acl_policy acl_policy;
2834 struct nlattr *attr;
2835 struct cfg80211_acl_data *acl;
2836 int i = 0, n_entries, tmp;
2837
2838 if (!wiphy->max_acl_mac_addrs)
2839 return ERR_PTR(-EOPNOTSUPP);
2840
2841 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2842 return ERR_PTR(-EINVAL);
2843
2844 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2845 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2846 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2847 return ERR_PTR(-EINVAL);
2848
2849 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2850 return ERR_PTR(-EINVAL);
2851
2852 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2853 if (n_entries < 0)
2854 return ERR_PTR(n_entries);
2855
2856 if (n_entries > wiphy->max_acl_mac_addrs)
2857 return ERR_PTR(-ENOTSUPP);
2858
2859 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2860 GFP_KERNEL);
2861 if (!acl)
2862 return ERR_PTR(-ENOMEM);
2863
2864 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2865 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2866 i++;
2867 }
2868
2869 acl->n_acl_entries = n_entries;
2870 acl->acl_policy = acl_policy;
2871
2872 return acl;
2873}
2874
2875static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2876{
2877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2878 struct net_device *dev = info->user_ptr[1];
2879 struct cfg80211_acl_data *acl;
2880 int err;
2881
2882 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2883 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2884 return -EOPNOTSUPP;
2885
2886 if (!dev->ieee80211_ptr->beacon_interval)
2887 return -EINVAL;
2888
2889 acl = parse_acl_data(&rdev->wiphy, info);
2890 if (IS_ERR(acl))
2891 return PTR_ERR(acl);
2892
2893 err = rdev_set_mac_acl(rdev, dev, acl);
2894
2895 kfree(acl);
2896
2897 return err;
2898}
2899
a1193be8 2900static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 2901 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2902{
8860020e 2903 bool haveinfo = false;
ed1b6cc7 2904
a1193be8
SW		 2905 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
2906 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
2907 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2908 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2909 return -EINVAL;
2910
8860020e 2911 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2912
a1193be8
SW		 2913 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
2914 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
2915 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 2916 if (!bcn->head_len)
2917 return -EINVAL;
2918 haveinfo = true;
ed1b6cc7
JB		 2919 }
2920
a1193be8
SW		 2921 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
2922 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
2923 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2924 haveinfo = true;
ed1b6cc7
JB		 2925 }
2926
4c476991
JB		 2927 if (!haveinfo)
2928 return -EINVAL;
3b85875a 2929
a1193be8
SW		 2930 if (attrs[NL80211_ATTR_IE]) {
2931 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
2932 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2933 }
2934
a1193be8 2935 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2936 bcn->proberesp_ies =
a1193be8 2937 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2938 bcn->proberesp_ies_len =
a1193be8 2939 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 2940 }
2941
a1193be8 2942 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2943 bcn->assocresp_ies =
a1193be8 2944 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2945 bcn->assocresp_ies_len =
a1193be8 2946 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 2947 }
2948
a1193be8
SW		 2949 if (attrs[NL80211_ATTR_PROBE_RESP]) {
2950 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
2951 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 2952 }
2953
8860020e
JB		 2954 return 0;
2955}
2956
46c1dd0c
FF		 2957static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2958 struct cfg80211_ap_settings *params)
2959{
2960 struct wireless_dev *wdev;
2961 bool ret = false;
2962
89a54e48 2963 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2964 if (wdev->iftype != NL80211_IFTYPE_AP &&
2965 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2966 continue;
2967
683b6d3b 2968 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2969 continue;
2970
683b6d3b 2971 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2972 ret = true;
2973 break;
2974 }
2975
46c1dd0c
FF		 2976 return ret;
2977}
2978
e39e5b5e
JM		 2979static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2980 enum nl80211_auth_type auth_type,
2981 enum nl80211_commands cmd)
2982{
2983 if (auth_type > NL80211_AUTHTYPE_MAX)
2984 return false;
2985
2986 switch (cmd) {
2987 case NL80211_CMD_AUTHENTICATE:
2988 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2989 auth_type == NL80211_AUTHTYPE_SAE)
2990 return false;
2991 return true;
2992 case NL80211_CMD_CONNECT:
2993 case NL80211_CMD_START_AP:
2994 /* SAE not supported yet */
2995 if (auth_type == NL80211_AUTHTYPE_SAE)
2996 return false;
2997 return true;
2998 default:
2999 return false;
3000 }
3001}
3002
8860020e
JB		 3003static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3004{
3005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3006 struct net_device *dev = info->user_ptr[1];
3007 struct wireless_dev *wdev = dev->ieee80211_ptr;
3008 struct cfg80211_ap_settings params;
3009 int err;
04f39047 3010 u8 radar_detect_width = 0;
8860020e
JB		 3011
3012 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3013 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3014 return -EOPNOTSUPP;
3015
3016 if (!rdev->ops->start_ap)
3017 return -EOPNOTSUPP;
3018
3019 if (wdev->beacon_interval)
3020 return -EALREADY;
3021
3022 memset(&params, 0, sizeof(params));
3023
3024 /* these are required for START_AP */
3025 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3026 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3027 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3028 return -EINVAL;
3029
a1193be8 3030 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3031 if (err)
3032 return err;
3033
3034 params.beacon_interval =
3035 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3036 params.dtim_period =
3037 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3038
3039 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3040 if (err)
3041 return err;
3042
3043 /*
3044 * In theory, some of these attributes should be required here
3045 * but since they were not used when the command was originally
3046 * added, keep them optional for old user space programs to let
3047 * them continue to work with drivers that do not need the
3048 * additional information -- drivers must check!
3049 */
3050 if (info->attrs[NL80211_ATTR_SSID]) {
3051 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3052 params.ssid_len =
3053 nla_len(info->attrs[NL80211_ATTR_SSID]);
3054 if (params.ssid_len == 0 ||
3055 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3056 return -EINVAL;
3057 }
3058
3059 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3060 params.hidden_ssid = nla_get_u32(
3061 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3062 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3063 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3064 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3065 return -EINVAL;
3066 }
3067
3068 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3069
3070 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3071 params.auth_type = nla_get_u32(
3072 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3073 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3074 NL80211_CMD_START_AP))
8860020e
JB		 3075 return -EINVAL;
3076 } else
3077 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3078
3079 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3080 NL80211_MAX_NR_CIPHER_SUITES);
3081 if (err)
3082 return err;
3083
1b658f11
VT		 3084 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3085 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3086 return -EOPNOTSUPP;
3087 params.inactivity_timeout = nla_get_u16(
3088 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3089 }
3090
53cabad7
JB		 3091 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3092 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3093 return -EINVAL;
3094 params.p2p_ctwindow =
3095 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3096 if (params.p2p_ctwindow > 127)
3097 return -EINVAL;
3098 if (params.p2p_ctwindow != 0 &&
3099 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3100 return -EINVAL;
3101 }
3102
3103 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3104 u8 tmp;
3105
3106 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3107 return -EINVAL;
3108 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3109 if (tmp > 1)
3110 return -EINVAL;
3111 params.p2p_opp_ps = tmp;
3112 if (params.p2p_opp_ps != 0 &&
3113 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3114 return -EINVAL;
3115 }
3116
aa430da4 3117 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3118 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3119 if (err)
3120 return err;
3121 } else if (wdev->preset_chandef.chan) {
3122 params.chandef = wdev->preset_chandef;
46c1dd0c 3123 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3124 return -EINVAL;
3125
683b6d3b 3126 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3127 return -EINVAL;
3128
04f39047
SW		 3129 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3130 if (err < 0)
3131 return err;
3132 if (err) {
3133 radar_detect_width = BIT(params.chandef.width);
3134 params.radar_required = true;
3135 }
3136
04f39047
SW		 3137 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3138 params.chandef.chan,
3139 CHAN_MODE_SHARED,
3140 radar_detect_width);
e4e32459
MK		 3141 if (err)
3142 return err;
3143
77765eaf
VT		 3144 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3145 params.acl = parse_acl_data(&rdev->wiphy, info);
3146 if (IS_ERR(params.acl))
3147 return PTR_ERR(params.acl);
3148 }
3149
e35e4d28 3150 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3151 if (!err) {
683b6d3b 3152 wdev->preset_chandef = params.chandef;
8860020e 3153 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3154 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3155 wdev->ssid_len = params.ssid_len;
3156 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3157 }
77765eaf
VT		 3158
3159 kfree(params.acl);
3160
56d1893d 3161 return err;
ed1b6cc7
JB		 3162}
3163
8860020e
JB		 3164static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3165{
3166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3167 struct net_device *dev = info->user_ptr[1];
3168 struct wireless_dev *wdev = dev->ieee80211_ptr;
3169 struct cfg80211_beacon_data params;
3170 int err;
3171
3172 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3173 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3174 return -EOPNOTSUPP;
3175
3176 if (!rdev->ops->change_beacon)
3177 return -EOPNOTSUPP;
3178
3179 if (!wdev->beacon_interval)
3180 return -EINVAL;
3181
a1193be8 3182 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3183 if (err)
3184 return err;
3185
e35e4d28 3186 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3187}
3188
3189static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3190{
4c476991
JB		 3191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3192 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3193
60771780 3194 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3195}
3196
5727ef1b
JB		 3197static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3198 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3199 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3200 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3201 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3202 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3203 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3204};
3205
eccb8e8f 3206static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3207 enum nl80211_iftype iftype,
eccb8e8f 3208 struct station_parameters *params)
5727ef1b
JB		 3209{
3210 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3211 struct nlattr *nla;
5727ef1b
JB		 3212 int flag;
3213
eccb8e8f
JB		 3214 /*
3215 * Try parsing the new attribute first so userspace
3216 * can specify both for older kernels.
3217 */
3218 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3219 if (nla) {
3220 struct nl80211_sta_flag_update *sta_flags;
3221
3222 sta_flags = nla_data(nla);
3223 params->sta_flags_mask = sta_flags->mask;
3224 params->sta_flags_set = sta_flags->set;
77ee7c89 3225 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3226 if ((params->sta_flags_mask |
3227 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3228 return -EINVAL;
3229 return 0;
3230 }
3231
3232 /* if present, parse the old attribute */
5727ef1b 3233
eccb8e8f 3234 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3235 if (!nla)
3236 return 0;
3237
3238 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3239 nla, sta_flags_policy))
3240 return -EINVAL;
3241
bdd3ae3d
JB		 3242 /*
3243 * Only allow certain flags for interface types so that
3244 * other attributes are silently ignored. Remember that
3245 * this is backward compatibility code with old userspace
3246 * and shouldn't be hit in other cases anyway.
3247 */
3248 switch (iftype) {
3249 case NL80211_IFTYPE_AP:
3250 case NL80211_IFTYPE_AP_VLAN:
3251 case NL80211_IFTYPE_P2P_GO:
3252 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3253 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3254 BIT(NL80211_STA_FLAG_WME) |
3255 BIT(NL80211_STA_FLAG_MFP);
3256 break;
3257 case NL80211_IFTYPE_P2P_CLIENT:
3258 case NL80211_IFTYPE_STATION:
3259 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3260 BIT(NL80211_STA_FLAG_TDLS_PEER);
3261 break;
3262 case NL80211_IFTYPE_MESH_POINT:
3263 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3264 BIT(NL80211_STA_FLAG_MFP) |
3265 BIT(NL80211_STA_FLAG_AUTHORIZED);
3266 default:
3267 return -EINVAL;
3268 }
5727ef1b 3269
3383b5a6
JB		 3270 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3271 if (flags[flag]) {
eccb8e8f 3272 params->sta_flags_set |= (1<<flag);
5727ef1b 3273
3383b5a6
JB		 3274 /* no longer support new API additions in old API */
3275 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3276 return -EINVAL;
3277 }
3278 }
3279
5727ef1b
JB		 3280 return 0;
3281}
3282
c8dcfd8a
FF		 3283static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3284 int attr)
3285{
3286 struct nlattr *rate;
8eb41c8d
VK		 3287 u32 bitrate;
3288 u16 bitrate_compat;
c8dcfd8a
FF		 3289
3290 rate = nla_nest_start(msg, attr);
3291 if (!rate)
db9c64cf 3292 return false;
c8dcfd8a
FF		 3293
3294 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3295 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3296 /* report 16-bit bitrate only if we can */
3297 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3298 if (bitrate > 0 &&
3299 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3300 return false;
3301 if (bitrate_compat > 0 &&
3302 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3303 return false;
3304
3305 if (info->flags & RATE_INFO_FLAGS_MCS) {
3306 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3307 return false;
3308 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3309 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3310 return false;
3311 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3312 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3313 return false;
3314 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3315 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3316 return false;
3317 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3318 return false;
3319 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3320 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3321 return false;
3322 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3323 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3324 return false;
3325 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3326 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3327 return false;
3328 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3329 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3330 return false;
3331 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3332 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3333 return false;
3334 }
c8dcfd8a
FF		 3335
3336 nla_nest_end(msg, rate);
3337 return true;
c8dcfd8a
FF		 3338}
3339
119363c7
FF		 3340static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3341 int id)
3342{
3343 void *attr;
3344 int i = 0;
3345
3346 if (!mask)
3347 return true;
3348
3349 attr = nla_nest_start(msg, id);
3350 if (!attr)
3351 return false;
3352
3353 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3354 if (!(mask & BIT(i)))
3355 continue;
3356
3357 if (nla_put_u8(msg, i, signal[i]))
3358 return false;
3359 }
3360
3361 nla_nest_end(msg, attr);
3362
3363 return true;
3364}
3365
15e47304 3366static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3367 int flags,
3368 struct cfg80211_registered_device *rdev,
3369 struct net_device *dev,
98b62183 3370 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3371{
3372 void *hdr;
f4263c98 3373 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3374
15e47304 3375 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3376 if (!hdr)
3377 return -1;
3378
9360ffd1
DM		 3379 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3380 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3381 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3382 goto nla_put_failure;
f5ea9120 3383
2ec600d6
LCC		 3384 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3385 if (!sinfoattr)
fd5b74dc 3386 goto nla_put_failure;
9360ffd1
DM		 3387 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3388 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3389 sinfo->connected_time))
3390 goto nla_put_failure;
3391 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3392 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3393 sinfo->inactive_time))
3394 goto nla_put_failure;
42745e03
VK		 3395 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3396 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3397 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3398 (u32)sinfo->rx_bytes))
9360ffd1 3399 goto nla_put_failure;
42745e03 3400 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3401 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3402 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3403 (u32)sinfo->tx_bytes))
3404 goto nla_put_failure;
3405 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3406 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3407 sinfo->rx_bytes))
3408 goto nla_put_failure;
3409 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3410 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3411 sinfo->tx_bytes))
3412 goto nla_put_failure;
3413 if ((sinfo->filled & STATION_INFO_LLID) &&
3414 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3415 goto nla_put_failure;
3416 if ((sinfo->filled & STATION_INFO_PLID) &&
3417 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3418 goto nla_put_failure;
3419 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3420 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3421 sinfo->plink_state))
3422 goto nla_put_failure;
66266b3a
JL		 3423 switch (rdev->wiphy.signal_type) {
3424 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3425 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3426 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3427 sinfo->signal))
3428 goto nla_put_failure;
3429 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3430 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3431 sinfo->signal_avg))
3432 goto nla_put_failure;
66266b3a
JL		 3433 break;
3434 default:
3435 break;
3436 }
119363c7
FF		 3437 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3438 if (!nl80211_put_signal(msg, sinfo->chains,
3439 sinfo->chain_signal,
3440 NL80211_STA_INFO_CHAIN_SIGNAL))
3441 goto nla_put_failure;
3442 }
3443 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3444 if (!nl80211_put_signal(msg, sinfo->chains,
3445 sinfo->chain_signal_avg,
3446 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3447 goto nla_put_failure;
3448 }
420e7fab 3449 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3450 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3451 NL80211_STA_INFO_TX_BITRATE))
3452 goto nla_put_failure;
3453 }
3454 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3455 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3456 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3457 goto nla_put_failure;
420e7fab 3458 }
9360ffd1
DM		 3459 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3460 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3461 sinfo->rx_packets))
3462 goto nla_put_failure;
3463 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3464 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3465 sinfo->tx_packets))
3466 goto nla_put_failure;
3467 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3468 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3469 sinfo->tx_retries))
3470 goto nla_put_failure;
3471 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3472 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3473 sinfo->tx_failed))
3474 goto nla_put_failure;
3475 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3476 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3477 sinfo->beacon_loss_count))
3478 goto nla_put_failure;
3b1c5a53
MP		 3479 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3480 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3481 sinfo->local_pm))
3482 goto nla_put_failure;
3483 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3484 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3485 sinfo->peer_pm))
3486 goto nla_put_failure;
3487 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3488 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3489 sinfo->nonpeer_pm))
3490 goto nla_put_failure;
f4263c98
PS		 3491 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3492 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3493 if (!bss_param)
3494 goto nla_put_failure;
3495
9360ffd1
DM		 3496 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3497 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3498 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3499 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3500 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3501 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3502 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3503 sinfo->bss_param.dtim_period) ||
3504 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3505 sinfo->bss_param.beacon_interval))
3506 goto nla_put_failure;
f4263c98
PS		 3507
3508 nla_nest_end(msg, bss_param);
3509 }
9360ffd1
DM		 3510 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3511 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3512 sizeof(struct nl80211_sta_flag_update),
3513 &sinfo->sta_flags))
3514 goto nla_put_failure;
7eab0f64
JL		 3515 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3516 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3517 sinfo->t_offset))
3518 goto nla_put_failure;
2ec600d6 3519 nla_nest_end(msg, sinfoattr);
fd5b74dc 3520
9360ffd1
DM		 3521 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3522 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3523 sinfo->assoc_req_ies))
3524 goto nla_put_failure;
50d3dfb7 3525
fd5b74dc
JB		 3526 return genlmsg_end(msg, hdr);
3527
3528 nla_put_failure:
bc3ed28c
TG		 3529 genlmsg_cancel(msg, hdr);
3530 return -EMSGSIZE;
fd5b74dc
JB		 3531}
3532
2ec600d6 3533static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3534 struct netlink_callback *cb)
2ec600d6 3535{
2ec600d6
LCC		 3536 struct station_info sinfo;
3537 struct cfg80211_registered_device *dev;
97990a06 3538 struct wireless_dev *wdev;
2ec600d6 3539 u8 mac_addr[ETH_ALEN];
97990a06 3540 int sta_idx = cb->args[2];
2ec600d6 3541 int err;
2ec600d6 3542
97990a06 3543 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3544 if (err)
3545 return err;
bba95fef 3546
97990a06
JB		 3547 if (!wdev->netdev) {
3548 err = -EINVAL;
3549 goto out_err;
3550 }
3551
bba95fef 3552 if (!dev->ops->dump_station) {
eec60b03 3553 err = -EOPNOTSUPP;
bba95fef
JB		 3554 goto out_err;
3555 }
3556
bba95fef 3557 while (1) {
f612cedf 3558 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3559 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3560 mac_addr, &sinfo);
bba95fef
JB		 3561 if (err == -ENOENT)
3562 break;
3563 if (err)
3b85875a 3564 goto out_err;
bba95fef
JB		 3565
3566 if (nl80211_send_station(skb,
15e47304 3567 NETLINK_CB(cb->skb).portid,
bba95fef 3568 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3569 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3570 &sinfo) < 0)
3571 goto out;
3572
3573 sta_idx++;
3574 }
3575
3576
3577 out:
97990a06 3578 cb->args[2] = sta_idx;
bba95fef 3579 err = skb->len;
bba95fef 3580 out_err:
97990a06 3581 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3582
3583 return err;
2ec600d6 3584}
fd5b74dc 3585
5727ef1b
JB		 3586static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3587{
4c476991
JB		 3588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3589 struct net_device *dev = info->user_ptr[1];
2ec600d6 3590 struct station_info sinfo;
fd5b74dc
JB		 3591 struct sk_buff *msg;
3592 u8 *mac_addr = NULL;
4c476991 3593 int err;
fd5b74dc 3594
2ec600d6 3595 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3596
3597 if (!info->attrs[NL80211_ATTR_MAC])
3598 return -EINVAL;
3599
3600 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3601
4c476991
JB		 3602 if (!rdev->ops->get_station)
3603 return -EOPNOTSUPP;
3b85875a 3604
e35e4d28 3605 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3606 if (err)
4c476991 3607 return err;
2ec600d6 3608
fd2120ca 3609 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3610 if (!msg)
4c476991 3611 return -ENOMEM;
fd5b74dc 3612
15e47304 3613 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3614 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3615 nlmsg_free(msg);
3616 return -ENOBUFS;
3617 }
3b85875a 3618
4c476991 3619 return genlmsg_reply(msg, info);
5727ef1b
JB		 3620}
3621
77ee7c89
JB		 3622int cfg80211_check_station_change(struct wiphy *wiphy,
3623 struct station_parameters *params,
3624 enum cfg80211_station_type statype)
3625{
3626 if (params->listen_interval != -1)
3627 return -EINVAL;
3628 if (params->aid)
3629 return -EINVAL;
3630
3631 /* When you run into this, adjust the code below for the new flag */
3632 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3633
3634 switch (statype) {
eef941e6
TP		 3635 case CFG80211_STA_MESH_PEER_KERNEL:
3636 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3637 /*
3638 * No ignoring the TDLS flag here -- the userspace mesh
3639 * code doesn't have the bug of including TDLS in the
3640 * mask everywhere.
3641 */
3642 if (params->sta_flags_mask &
3643 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3644 BIT(NL80211_STA_FLAG_MFP) |
3645 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3646 return -EINVAL;
3647 break;
3648 case CFG80211_STA_TDLS_PEER_SETUP:
3649 case CFG80211_STA_TDLS_PEER_ACTIVE:
3650 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3651 return -EINVAL;
3652 /* ignore since it can't change */
3653 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3654 break;
3655 default:
3656 /* disallow mesh-specific things */
3657 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3658 return -EINVAL;
3659 if (params->local_pm)
3660 return -EINVAL;
3661 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3662 return -EINVAL;
3663 }
3664
3665 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3666 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3667 /* TDLS can't be set, ... */
3668 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3669 return -EINVAL;
3670 /*
3671 * ... but don't bother the driver with it. This works around
3672 * a hostapd/wpa_supplicant issue -- it always includes the
3673 * TLDS_PEER flag in the mask even for AP mode.
3674 */
3675 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3676 }
3677
3678 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3679 /* reject other things that can't change */
3680 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3681 return -EINVAL;
3682 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3683 return -EINVAL;
3684 if (params->supported_rates)
3685 return -EINVAL;
3686 if (params->ext_capab || params->ht_capa || params->vht_capa)
3687 return -EINVAL;
3688 }
3689
3690 if (statype != CFG80211_STA_AP_CLIENT) {
3691 if (params->vlan)
3692 return -EINVAL;
3693 }
3694
3695 switch (statype) {
3696 case CFG80211_STA_AP_MLME_CLIENT:
3697 /* Use this only for authorizing/unauthorizing a station */
3698 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3699 return -EOPNOTSUPP;
3700 break;
3701 case CFG80211_STA_AP_CLIENT:
3702 /* accept only the listed bits */
3703 if (params->sta_flags_mask &
3704 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3705 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3706 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3707 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3708 BIT(NL80211_STA_FLAG_WME) |
3709 BIT(NL80211_STA_FLAG_MFP)))
3710 return -EINVAL;
3711
3712 /* but authenticated/associated only if driver handles it */
3713 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3714 params->sta_flags_mask &
3715 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3716 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3717 return -EINVAL;
3718 break;
3719 case CFG80211_STA_IBSS:
3720 case CFG80211_STA_AP_STA:
3721 /* reject any changes other than AUTHORIZED */
3722 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3723 return -EINVAL;
3724 break;
3725 case CFG80211_STA_TDLS_PEER_SETUP:
3726 /* reject any changes other than AUTHORIZED or WME */
3727 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3728 BIT(NL80211_STA_FLAG_WME)))
3729 return -EINVAL;
3730 /* force (at least) rates when authorizing */
3731 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3732 !params->supported_rates)
3733 return -EINVAL;
3734 break;
3735 case CFG80211_STA_TDLS_PEER_ACTIVE:
3736 /* reject any changes */
3737 return -EINVAL;
eef941e6 3738 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3739 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3740 return -EINVAL;
3741 break;
eef941e6 3742 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3743 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3744 return -EINVAL;
3745 break;
3746 }
3747
3748 return 0;
3749}
3750EXPORT_SYMBOL(cfg80211_check_station_change);
3751
5727ef1b 3752/*
c258d2de 3753 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3754 */
80b99899
JB		 3755static struct net_device *get_vlan(struct genl_info *info,
3756 struct cfg80211_registered_device *rdev)
5727ef1b 3757{
463d0183 3758 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3759 struct net_device *v;
3760 int ret;
3761
3762 if (!vlanattr)
3763 return NULL;
3764
3765 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3766 if (!v)
3767 return ERR_PTR(-ENODEV);
3768
3769 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3770 ret = -EINVAL;
3771 goto error;
5727ef1b 3772 }
80b99899 3773
77ee7c89
JB		 3774 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3775 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3776 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3777 ret = -EINVAL;
3778 goto error;
3779 }
3780
80b99899
JB		 3781 if (!netif_running(v)) {
3782 ret = -ENETDOWN;
3783 goto error;
3784 }
3785
3786 return v;
3787 error:
3788 dev_put(v);
3789 return ERR_PTR(ret);
5727ef1b
JB		 3790}
3791
df881293
JM		 3792static struct nla_policy
3793nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3794 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3795 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3796};
3797
ff276691
JB		 3798static int nl80211_parse_sta_wme(struct genl_info *info,
3799 struct station_parameters *params)
df881293 3800{
df881293
JM		 3801 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3802 struct nlattr *nla;
3803 int err;
3804
df881293
JM		 3805 /* parse WME attributes if present */
3806 if (!info->attrs[NL80211_ATTR_STA_WME])
3807 return 0;
3808
3809 nla = info->attrs[NL80211_ATTR_STA_WME];
3810 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3811 nl80211_sta_wme_policy);
3812 if (err)
3813 return err;
3814
3815 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3816 params->uapsd_queues = nla_get_u8(
3817 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3818 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3819 return -EINVAL;
3820
3821 if (tb[NL80211_STA_WME_MAX_SP])
3822 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3823
3824 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3825 return -EINVAL;
3826
3827 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3828
3829 return 0;
3830}
3831
ff276691
JB		 3832static int nl80211_set_station_tdls(struct genl_info *info,
3833 struct station_parameters *params)
3834{
3835 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3836 if (info->attrs[NL80211_ATTR_PEER_AID])
3837 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3838 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3839 params->ht_capa =
3840 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3841 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3842 params->vht_capa =
3843 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3844
3845 return nl80211_parse_sta_wme(info, params);
3846}
3847
5727ef1b
JB		 3848static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3849{
4c476991 3850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3851 struct net_device *dev = info->user_ptr[1];
5727ef1b 3852 struct station_parameters params;
77ee7c89
JB		 3853 u8 *mac_addr;
3854 int err;
5727ef1b
JB		 3855
3856 memset(&params, 0, sizeof(params));
3857
3858 params.listen_interval = -1;
3859
77ee7c89
JB		 3860 if (!rdev->ops->change_station)
3861 return -EOPNOTSUPP;
3862
5727ef1b
JB		 3863 if (info->attrs[NL80211_ATTR_STA_AID])
3864 return -EINVAL;
3865
3866 if (!info->attrs[NL80211_ATTR_MAC])
3867 return -EINVAL;
3868
3869 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3870
3871 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3872 params.supported_rates =
3873 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3874 params.supported_rates_len =
3875 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3876 }
3877
9d62a986
JM		 3878 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3879 params.capability =
3880 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3881 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3882 }
3883
3884 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3885 params.ext_capab =
3886 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3887 params.ext_capab_len =
3888 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3889 }
3890
df881293 3891 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3892 return -EINVAL;
36aedc90 3893
bdd3ae3d 3894 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3895 return -EINVAL;
3896
f8bacc21 3897 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3898 params.plink_action =
f8bacc21
JB		 3899 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3900 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3901 return -EINVAL;
3902 }
2ec600d6 3903
f8bacc21 3904 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3905 params.plink_state =
f8bacc21
JB		 3906 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3907 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3908 return -EINVAL;
3909 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3910 }
9c3990aa 3911
3b1c5a53
MP		 3912 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3913 enum nl80211_mesh_power_mode pm = nla_get_u32(
3914 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3915
3916 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3917 pm > NL80211_MESH_POWER_MAX)
3918 return -EINVAL;
3919
3920 params.local_pm = pm;
3921 }
3922
77ee7c89
JB		 3923 /* Include parameters for TDLS peer (will check later) */
3924 err = nl80211_set_station_tdls(info, &params);
3925 if (err)
3926 return err;
3927
3928 params.vlan = get_vlan(info, rdev);
3929 if (IS_ERR(params.vlan))
3930 return PTR_ERR(params.vlan);
3931
a97f4424
JB		 3932 switch (dev->ieee80211_ptr->iftype) {
3933 case NL80211_IFTYPE_AP:
3934 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3935 case NL80211_IFTYPE_P2P_GO:
074ac8df 3936 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3937 case NL80211_IFTYPE_STATION:
267335d6 3938 case NL80211_IFTYPE_ADHOC:
a97f4424 3939 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3940 break;
3941 default:
77ee7c89
JB		 3942 err = -EOPNOTSUPP;
3943 goto out_put_vlan;
034d655e
JB		 3944 }
3945
77ee7c89 3946 /* driver will call cfg80211_check_station_change() */
e35e4d28 3947 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3948
77ee7c89 3949 out_put_vlan:
5727ef1b
JB		 3950 if (params.vlan)
3951 dev_put(params.vlan);
3b85875a 3952
5727ef1b
JB		 3953 return err;
3954}
3955
3956static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3957{
4c476991 3958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3959 int err;
4c476991 3960 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3961 struct station_parameters params;
3962 u8 *mac_addr = NULL;
3963
3964 memset(&params, 0, sizeof(params));
3965
984c311b
JB		 3966 if (!rdev->ops->add_station)
3967 return -EOPNOTSUPP;
3968
5727ef1b
JB		 3969 if (!info->attrs[NL80211_ATTR_MAC])
3970 return -EINVAL;
3971
5727ef1b
JB		 3972 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3973 return -EINVAL;
3974
3975 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3976 return -EINVAL;
3977
5e4b6f56
JM		 3978 if (!info->attrs[NL80211_ATTR_STA_AID] &&
3979 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 3980 return -EINVAL;
3981
5727ef1b
JB		 3982 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3983 params.supported_rates =
3984 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3985 params.supported_rates_len =
3986 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3987 params.listen_interval =
3988 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3989
3d124ea2 3990 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 3991 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 3992 else
3993 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 3994 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3995 return -EINVAL;
51b50fbe 3996
9d62a986
JM		 3997 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3998 params.capability =
3999 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4000 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4001 }
4002
4003 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4004 params.ext_capab =
4005 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4006 params.ext_capab_len =
4007 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4008 }
4009
36aedc90
JM		 4010 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4011 params.ht_capa =
4012 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4013
f461be3e
MP		 4014 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4015 params.vht_capa =
4016 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4017
f8bacc21 4018 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4019 params.plink_action =
f8bacc21
JB		 4020 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4021 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4022 return -EINVAL;
4023 }
96b78dff 4024
ff276691
JB		 4025 err = nl80211_parse_sta_wme(info, &params);
4026 if (err)
4027 return err;
bdd90d5e 4028
bdd3ae3d 4029 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4030 return -EINVAL;
4031
77ee7c89
JB		 4032 /* When you run into this, adjust the code below for the new flag */
4033 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4034
bdd90d5e
JB		 4035 switch (dev->ieee80211_ptr->iftype) {
4036 case NL80211_IFTYPE_AP:
4037 case NL80211_IFTYPE_AP_VLAN:
4038 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4039 /* ignore WME attributes if iface/sta is not capable */
4040 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4041 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4042 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4043
bdd90d5e 4044 /* TDLS peers cannot be added */
3d124ea2
JM		 4045 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4046 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4047 return -EINVAL;
bdd90d5e
JB		 4048 /* but don't bother the driver with it */
4049 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4050
d582cffb
JB		 4051 /* allow authenticated/associated only if driver handles it */
4052 if (!(rdev->wiphy.features &
4053 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4054 params.sta_flags_mask &
4055 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4056 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4057 return -EINVAL;
4058
bdd90d5e
JB		 4059 /* must be last in here for error handling */
4060 params.vlan = get_vlan(info, rdev);
4061 if (IS_ERR(params.vlan))
4062 return PTR_ERR(params.vlan);
4063 break;
4064 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4065 /* ignore uAPSD data */
4066 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4067
d582cffb
JB		 4068 /* associated is disallowed */
4069 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4070 return -EINVAL;
bdd90d5e 4071 /* TDLS peers cannot be added */
3d124ea2
JM		 4072 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4073 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4074 return -EINVAL;
4075 break;
4076 case NL80211_IFTYPE_STATION:
93d08f0b 4077 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4078 /* ignore uAPSD data */
4079 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4080
77ee7c89
JB		 4081 /* these are disallowed */
4082 if (params.sta_flags_mask &
4083 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4084 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4085 return -EINVAL;
bdd90d5e
JB		 4086 /* Only TDLS peers can be added */
4087 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4088 return -EINVAL;
4089 /* Can only add if TDLS ... */
4090 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4091 return -EOPNOTSUPP;
4092 /* ... with external setup is supported */
4093 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4094 return -EOPNOTSUPP;
77ee7c89
JB		 4095 /*
4096 * Older wpa_supplicant versions always mark the TDLS peer
4097 * as authorized, but it shouldn't yet be.
4098 */
4099 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4100 break;
4101 default:
4102 return -EOPNOTSUPP;
c75786c9
EP		 4103 }
4104
bdd90d5e 4105 /* be aware of params.vlan when changing code here */
5727ef1b 4106
e35e4d28 4107 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4108
5727ef1b
JB		 4109 if (params.vlan)
4110 dev_put(params.vlan);
5727ef1b
JB		 4111 return err;
4112}
4113
4114static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4115{
4c476991
JB		 4116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4117 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4118 u8 *mac_addr = NULL;
4119
4120 if (info->attrs[NL80211_ATTR_MAC])
4121 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4122
e80cf853 4123 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4124 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4125 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4126 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4127 return -EINVAL;
5727ef1b 4128
4c476991
JB		 4129 if (!rdev->ops->del_station)
4130 return -EOPNOTSUPP;
3b85875a 4131
e35e4d28 4132 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4133}
4134
15e47304 4135static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4136 int flags, struct net_device *dev,
4137 u8 *dst, u8 *next_hop,
4138 struct mpath_info *pinfo)
4139{
4140 void *hdr;
4141 struct nlattr *pinfoattr;
4142
15e47304 4143 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4144 if (!hdr)
4145 return -1;
4146
9360ffd1
DM		 4147 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4148 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4149 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4150 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4151 goto nla_put_failure;
f5ea9120 4152
2ec600d6
LCC		 4153 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4154 if (!pinfoattr)
4155 goto nla_put_failure;
9360ffd1
DM		 4156 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4157 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4158 pinfo->frame_qlen))
4159 goto nla_put_failure;
4160 if (((pinfo->filled & MPATH_INFO_SN) &&
4161 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4162 ((pinfo->filled & MPATH_INFO_METRIC) &&
4163 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4164 pinfo->metric)) ||
4165 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4166 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4167 pinfo->exptime)) ||
4168 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4169 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4170 pinfo->flags)) ||
4171 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4172 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4173 pinfo->discovery_timeout)) ||
4174 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4175 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4176 pinfo->discovery_retries)))
4177 goto nla_put_failure;
2ec600d6
LCC		 4178
4179 nla_nest_end(msg, pinfoattr);
4180
4181 return genlmsg_end(msg, hdr);
4182
4183 nla_put_failure:
bc3ed28c
TG		 4184 genlmsg_cancel(msg, hdr);
4185 return -EMSGSIZE;
2ec600d6
LCC		 4186}
4187
4188static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4189 struct netlink_callback *cb)
2ec600d6 4190{
2ec600d6
LCC		 4191 struct mpath_info pinfo;
4192 struct cfg80211_registered_device *dev;
97990a06 4193 struct wireless_dev *wdev;
2ec600d6
LCC		 4194 u8 dst[ETH_ALEN];
4195 u8 next_hop[ETH_ALEN];
97990a06 4196 int path_idx = cb->args[2];
2ec600d6 4197 int err;
2ec600d6 4198
97990a06 4199 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4200 if (err)
4201 return err;
bba95fef
JB		 4202
4203 if (!dev->ops->dump_mpath) {
eec60b03 4204 err = -EOPNOTSUPP;
bba95fef
JB		 4205 goto out_err;
4206 }
4207
97990a06 4208 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4209 err = -EOPNOTSUPP;
0448b5fc 4210 goto out_err;
eec60b03
JM		 4211 }
4212
bba95fef 4213 while (1) {
97990a06
JB		 4214 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4215 next_hop, &pinfo);
bba95fef 4216 if (err == -ENOENT)
2ec600d6 4217 break;
bba95fef 4218 if (err)
3b85875a 4219 goto out_err;
2ec600d6 4220
15e47304 4221 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4222 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4223 wdev->netdev, dst, next_hop,
bba95fef
JB		 4224 &pinfo) < 0)
4225 goto out;
2ec600d6 4226
bba95fef 4227 path_idx++;
2ec600d6 4228 }
2ec600d6 4229
2ec600d6 4230
bba95fef 4231 out:
97990a06 4232 cb->args[2] = path_idx;
bba95fef 4233 err = skb->len;
bba95fef 4234 out_err:
97990a06 4235 nl80211_finish_wdev_dump(dev);
bba95fef 4236 return err;
2ec600d6
LCC		 4237}
4238
4239static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4240{
4c476991 4241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4242 int err;
4c476991 4243 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4244 struct mpath_info pinfo;
4245 struct sk_buff *msg;
4246 u8 *dst = NULL;
4247 u8 next_hop[ETH_ALEN];
4248
4249 memset(&pinfo, 0, sizeof(pinfo));
4250
4251 if (!info->attrs[NL80211_ATTR_MAC])
4252 return -EINVAL;
4253
4254 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4255
4c476991
JB		 4256 if (!rdev->ops->get_mpath)
4257 return -EOPNOTSUPP;
2ec600d6 4258
4c476991
JB		 4259 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4260 return -EOPNOTSUPP;
eec60b03 4261
e35e4d28 4262 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4263 if (err)
4c476991 4264 return err;
2ec600d6 4265
fd2120ca 4266 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4267 if (!msg)
4c476991 4268 return -ENOMEM;
2ec600d6 4269
15e47304 4270 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4271 dev, dst, next_hop, &pinfo) < 0) {
4272 nlmsg_free(msg);
4273 return -ENOBUFS;
4274 }
3b85875a 4275
4c476991 4276 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4277}
4278
4279static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4280{
4c476991
JB		 4281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4282 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4283 u8 *dst = NULL;
4284 u8 *next_hop = NULL;
4285
4286 if (!info->attrs[NL80211_ATTR_MAC])
4287 return -EINVAL;
4288
4289 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4290 return -EINVAL;
4291
4292 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4293 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4294
4c476991
JB		 4295 if (!rdev->ops->change_mpath)
4296 return -EOPNOTSUPP;
35a8efe1 4297
4c476991
JB		 4298 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4299 return -EOPNOTSUPP;
2ec600d6 4300
e35e4d28 4301 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4302}
4c476991 4303
2ec600d6
LCC		 4304static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4305{
4c476991
JB		 4306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4307 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4308 u8 *dst = NULL;
4309 u8 *next_hop = NULL;
4310
4311 if (!info->attrs[NL80211_ATTR_MAC])
4312 return -EINVAL;
4313
4314 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4315 return -EINVAL;
4316
4317 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4318 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4319
4c476991
JB		 4320 if (!rdev->ops->add_mpath)
4321 return -EOPNOTSUPP;
35a8efe1 4322
4c476991
JB		 4323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4324 return -EOPNOTSUPP;
2ec600d6 4325
e35e4d28 4326 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4327}
4328
4329static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4330{
4c476991
JB		 4331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4332 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4333 u8 *dst = NULL;
4334
4335 if (info->attrs[NL80211_ATTR_MAC])
4336 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4337
4c476991
JB		 4338 if (!rdev->ops->del_mpath)
4339 return -EOPNOTSUPP;
3b85875a 4340
e35e4d28 4341 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4342}
4343
9f1ba906
JM		 4344static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4345{
4c476991
JB		 4346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4347 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4348 struct bss_parameters params;
4349
4350 memset(&params, 0, sizeof(params));
4351 /* default to not changing parameters */
4352 params.use_cts_prot = -1;
4353 params.use_short_preamble = -1;
4354 params.use_short_slot_time = -1;
fd8aaaf3 4355 params.ap_isolate = -1;
50b12f59 4356 params.ht_opmode = -1;
53cabad7
JB		 4357 params.p2p_ctwindow = -1;
4358 params.p2p_opp_ps = -1;
9f1ba906
JM		 4359
4360 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4361 params.use_cts_prot =
4362 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4363 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4364 params.use_short_preamble =
4365 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4366 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4367 params.use_short_slot_time =
4368 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4369 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4370 params.basic_rates =
4371 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4372 params.basic_rates_len =
4373 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4374 }
fd8aaaf3
FF		 4375 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4376 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4377 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4378 params.ht_opmode =
4379 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4380
53cabad7
JB		 4381 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4382 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4383 return -EINVAL;
4384 params.p2p_ctwindow =
4385 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4386 if (params.p2p_ctwindow < 0)
4387 return -EINVAL;
4388 if (params.p2p_ctwindow != 0 &&
4389 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4390 return -EINVAL;
4391 }
4392
4393 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4394 u8 tmp;
4395
4396 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4397 return -EINVAL;
4398 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4399 if (tmp > 1)
4400 return -EINVAL;
4401 params.p2p_opp_ps = tmp;
4402 if (params.p2p_opp_ps &&
4403 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4404 return -EINVAL;
4405 }
4406
4c476991
JB		 4407 if (!rdev->ops->change_bss)
4408 return -EOPNOTSUPP;
9f1ba906 4409
074ac8df 4410 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4412 return -EOPNOTSUPP;
3b85875a 4413
e35e4d28 4414 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4415}
4416
b54452b0 4417static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4418 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4419 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4420 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4421 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4422 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4423 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4424};
4425
4426static int parse_reg_rule(struct nlattr *tb[],
4427 struct ieee80211_reg_rule *reg_rule)
4428{
4429 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4430 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4431
4432 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4433 return -EINVAL;
4434 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4435 return -EINVAL;
4436 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4437 return -EINVAL;
4438 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4439 return -EINVAL;
4440 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4441 return -EINVAL;
4442
4443 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4444
4445 freq_range->start_freq_khz =
4446 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4447 freq_range->end_freq_khz =
4448 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4449 freq_range->max_bandwidth_khz =
4450 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4451
4452 power_rule->max_eirp =
4453 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4454
4455 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4456 power_rule->max_antenna_gain =
4457 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4458
4459 return 0;
4460}
4461
4462static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4463{
4464 int r;
4465 char *data = NULL;
57b5ce07 4466 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4467
80778f18
LR		 4468 /*
4469 * You should only get this when cfg80211 hasn't yet initialized
4470 * completely when built-in to the kernel right between the time
4471 * window between nl80211_init() and regulatory_init(), if that is
4472 * even possible.
4473 */
458f4f9e 4474 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4475 return -EINPROGRESS;
80778f18 4476
fe33eb39
LR		 4477 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4478 return -EINVAL;
b2e1b302
LR		 4479
4480 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4481
57b5ce07
LR		 4482 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4483 user_reg_hint_type =
4484 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4485 else
4486 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4487
4488 switch (user_reg_hint_type) {
4489 case NL80211_USER_REG_HINT_USER:
4490 case NL80211_USER_REG_HINT_CELL_BASE:
4491 break;
4492 default:
4493 return -EINVAL;
4494 }
4495
4496 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4497
b2e1b302
LR		 4498 return r;
4499}
4500
24bdd9f4 4501static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4502 struct genl_info *info)
93da9cc1 4503{
4c476991 4504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4505 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4506 struct wireless_dev *wdev = dev->ieee80211_ptr;
4507 struct mesh_config cur_params;
4508 int err = 0;
93da9cc1 4509 void *hdr;
4510 struct nlattr *pinfoattr;
4511 struct sk_buff *msg;
4512
29cbe68c
JB		 4513 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4514 return -EOPNOTSUPP;
4515
24bdd9f4 4516 if (!rdev->ops->get_mesh_config)
4c476991 4517 return -EOPNOTSUPP;
f3f92586 4518
29cbe68c
JB		 4519 wdev_lock(wdev);
4520 /* If not connected, get default parameters */
4521 if (!wdev->mesh_id_len)
4522 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4523 else
e35e4d28 4524 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4525 wdev_unlock(wdev);
4526
93da9cc1 4527 if (err)
4c476991 4528 return err;
93da9cc1 4529
4530 /* Draw up a netlink message to send back */
fd2120ca 4531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4532 if (!msg)
4533 return -ENOMEM;
15e47304 4534 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4535 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4536 if (!hdr)
efe1cf0c 4537 goto out;
24bdd9f4 4538 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4539 if (!pinfoattr)
4540 goto nla_put_failure;
9360ffd1
DM		 4541 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4542 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4543 cur_params.dot11MeshRetryTimeout) ||
4544 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4545 cur_params.dot11MeshConfirmTimeout) ||
4546 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4547 cur_params.dot11MeshHoldingTimeout) ||
4548 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4549 cur_params.dot11MeshMaxPeerLinks) ||
4550 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4551 cur_params.dot11MeshMaxRetries) ||
4552 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4553 cur_params.dot11MeshTTL) ||
4554 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4555 cur_params.element_ttl) ||
4556 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4557 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4558 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4559 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4560 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4561 cur_params.dot11MeshHWMPmaxPREQretries) ||
4562 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4563 cur_params.path_refresh_time) ||
4564 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4565 cur_params.min_discovery_timeout) ||
4566 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4567 cur_params.dot11MeshHWMPactivePathTimeout) ||
4568 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4569 cur_params.dot11MeshHWMPpreqMinInterval) ||
4570 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4571 cur_params.dot11MeshHWMPperrMinInterval) ||
4572 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4573 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4574 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4575 cur_params.dot11MeshHWMPRootMode) ||
4576 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4577 cur_params.dot11MeshHWMPRannInterval) ||
4578 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4579 cur_params.dot11MeshGateAnnouncementProtocol) ||
4580 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4581 cur_params.dot11MeshForwarding) ||
4582 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4583 cur_params.rssi_threshold) ||
4584 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4585 cur_params.ht_opmode) ||
4586 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4587 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4588 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4589 cur_params.dot11MeshHWMProotInterval) ||
4590 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4591 cur_params.dot11MeshHWMPconfirmationInterval) ||
4592 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4593 cur_params.power_mode) ||
4594 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4595 cur_params.dot11MeshAwakeWindowDuration) ||
4596 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4597 cur_params.plink_timeout))
9360ffd1 4598 goto nla_put_failure;
93da9cc1 4599 nla_nest_end(msg, pinfoattr);
4600 genlmsg_end(msg, hdr);
4c476991 4601 return genlmsg_reply(msg, info);
93da9cc1 4602
3b85875a 4603 nla_put_failure:
93da9cc1 4604 genlmsg_cancel(msg, hdr);
efe1cf0c 4605 out:
d080e275 4606 nlmsg_free(msg);
4c476991 4607 return -ENOBUFS;
93da9cc1 4608}
4609
b54452b0 4610static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4611 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4612 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4613 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4614 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4615 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4616 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4617 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4618 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4619 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4620 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4621 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4622 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4623 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4624 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4625 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4626 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4627 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4628 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4629 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4630 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4631 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4632 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4633 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4634 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4635 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4636 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4637 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4638 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4639};
4640
c80d545d
JC		 4641static const struct nla_policy
4642 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4643 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4644 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4645 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4646 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4647 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4648 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4649 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4650 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4651 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4652};
4653
24bdd9f4 4654static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4655 struct mesh_config *cfg,
4656 u32 *mask_out)
93da9cc1 4657{
93da9cc1 4658 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4659 u32 mask = 0;
93da9cc1 4660
ea54fba2
MP		 4661#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4662do { \
4663 if (tb[attr]) { \
4664 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4665 return -EINVAL; \
4666 cfg->param = fn(tb[attr]); \
4667 mask |= (1 << (attr - 1)); \
4668 } \
4669} while (0)
bd90fdcc
JB		 4670
4671
24bdd9f4 4672 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4673 return -EINVAL;
4674 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4675 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4676 nl80211_meshconf_params_policy))
93da9cc1 4677 return -EINVAL;
4678
93da9cc1 4679 /* This makes sure that there aren't more than 32 mesh config
4680 * parameters (otherwise our bitfield scheme would not work.) */
4681 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4682
4683 /* Fill in the params struct */
ea54fba2 4684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4685 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4686 nla_get_u16);
ea54fba2 4687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4688 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4689 nla_get_u16);
ea54fba2 4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4691 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4692 nla_get_u16);
ea54fba2 4693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4694 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4695 nla_get_u16);
ea54fba2 4696 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4697 mask, NL80211_MESHCONF_MAX_RETRIES,
4698 nla_get_u8);
ea54fba2 4699 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4700 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4702 mask, NL80211_MESHCONF_ELEMENT_TTL,
4703 nla_get_u8);
ea54fba2 4704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4705 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4706 nla_get_u8);
ea54fba2
MP		 4707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4708 1, 255, mask,
a4f606ea
CYY		 4709 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4710 nla_get_u32);
ea54fba2 4711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4712 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4713 nla_get_u8);
ea54fba2 4714 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4715 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4716 nla_get_u32);
ea54fba2 4717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4718 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4719 nla_get_u16);
ea54fba2
MP		 4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4721 1, 65535, mask,
a4f606ea
CYY		 4722 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4723 nla_get_u32);
93da9cc1 4724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4725 1, 65535, mask,
4726 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4727 nla_get_u16);
dca7e943 4728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4729 1, 65535, mask,
4730 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4731 nla_get_u16);
93da9cc1 4732 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4733 dot11MeshHWMPnetDiameterTraversalTime,
4734 1, 65535, mask,
a4f606ea
CYY		 4735 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4736 nla_get_u16);
ea54fba2
MP		 4737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4738 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4739 nla_get_u8);
4740 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4741 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4742 nla_get_u16);
63c5723b 4743 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4744 dot11MeshGateAnnouncementProtocol, 0, 1,
4745 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4746 nla_get_u8);
ea54fba2 4747 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4748 mask, NL80211_MESHCONF_FORWARDING,
4749 nla_get_u8);
ea54fba2 4750 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4751 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4752 nla_get_u32);
ea54fba2 4753 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4754 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4755 nla_get_u16);
4756 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4757 1, 65535, mask,
ac1073a6
CYY		 4758 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4759 nla_get_u32);
ea54fba2 4760 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4761 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4762 nla_get_u16);
4763 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4764 dot11MeshHWMPconfirmationInterval,
4765 1, 65535, mask,
728b19e5 4766 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4767 nla_get_u16);
3b1c5a53
MP		 4768 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4769 NL80211_MESH_POWER_ACTIVE,
4770 NL80211_MESH_POWER_MAX,
4771 mask, NL80211_MESHCONF_POWER_MODE,
4772 nla_get_u32);
4773 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4774 0, 65535, mask,
4775 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4776 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4777 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4778 nla_get_u32);
bd90fdcc
JB		 4779 if (mask_out)
4780 *mask_out = mask;
c80d545d 4781
bd90fdcc
JB		 4782 return 0;
4783
4784#undef FILL_IN_MESH_PARAM_IF_SET
4785}
4786
c80d545d
JC		 4787static int nl80211_parse_mesh_setup(struct genl_info *info,
4788 struct mesh_setup *setup)
4789{
bb2798d4 4790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4791 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4792
4793 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4794 return -EINVAL;
4795 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4796 info->attrs[NL80211_ATTR_MESH_SETUP],
4797 nl80211_mesh_setup_params_policy))
4798 return -EINVAL;
4799
d299a1f2
JC		 4800 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4801 setup->sync_method =
4802 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4803 IEEE80211_SYNC_METHOD_VENDOR :
4804 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4805
c80d545d
JC		 4806 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4807 setup->path_sel_proto =
4808 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4809 IEEE80211_PATH_PROTOCOL_VENDOR :
4810 IEEE80211_PATH_PROTOCOL_HWMP;
4811
4812 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4813 setup->path_metric =
4814 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4815 IEEE80211_PATH_METRIC_VENDOR :
4816 IEEE80211_PATH_METRIC_AIRTIME;
4817
581a8b0f
JC		 4818
4819 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4820 struct nlattr *ieattr =
581a8b0f 4821 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4822 if (!is_valid_ie_attr(ieattr))
4823 return -EINVAL;
581a8b0f
JC		 4824 setup->ie = nla_data(ieattr);
4825 setup->ie_len = nla_len(ieattr);
c80d545d 4826 }
bb2798d4
TP		 4827 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4828 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4829 return -EINVAL;
4830 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4831 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4832 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4833 if (setup->is_secure)
4834 setup->user_mpm = true;
c80d545d 4835
6e16d90b
CT		 4836 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4837 if (!setup->user_mpm)
4838 return -EINVAL;
4839 setup->auth_id =
4840 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4841 }
4842
c80d545d
JC		 4843 return 0;
4844}
4845
24bdd9f4 4846static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4847 struct genl_info *info)
bd90fdcc
JB		 4848{
4849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4850 struct net_device *dev = info->user_ptr[1];
29cbe68c 4851 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4852 struct mesh_config cfg;
4853 u32 mask;
4854 int err;
4855
29cbe68c
JB		 4856 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4857 return -EOPNOTSUPP;
4858
24bdd9f4 4859 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4860 return -EOPNOTSUPP;
4861
24bdd9f4 4862 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4863 if (err)
4864 return err;
4865
29cbe68c
JB		 4866 wdev_lock(wdev);
4867 if (!wdev->mesh_id_len)
4868 err = -ENOLINK;
4869
4870 if (!err)
e35e4d28 4871 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4872
4873 wdev_unlock(wdev);
4874
4875 return err;
93da9cc1 4876}
4877
f130347c
LR		 4878static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4879{
458f4f9e 4880 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4881 struct sk_buff *msg;
4882 void *hdr = NULL;
4883 struct nlattr *nl_reg_rules;
4884 unsigned int i;
f130347c
LR		 4885
4886 if (!cfg80211_regdomain)
5fe231e8 4887 return -EINVAL;
f130347c 4888
fd2120ca 4889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 4890 if (!msg)
4891 return -ENOBUFS;
f130347c 4892
15e47304 4893 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4894 NL80211_CMD_GET_REG);
4895 if (!hdr)
efe1cf0c 4896 goto put_failure;
f130347c 4897
57b5ce07
LR		 4898 if (reg_last_request_cell_base() &&
4899 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4900 NL80211_USER_REG_HINT_CELL_BASE))
4901 goto nla_put_failure;
4902
458f4f9e
JB		 4903 rcu_read_lock();
4904 regdom = rcu_dereference(cfg80211_regdomain);
4905
4906 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4907 (regdom->dfs_region &&
4908 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4909 goto nla_put_failure_rcu;
4910
f130347c
LR		 4911 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4912 if (!nl_reg_rules)
458f4f9e 4913 goto nla_put_failure_rcu;
f130347c 4914
458f4f9e 4915 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4916 struct nlattr *nl_reg_rule;
4917 const struct ieee80211_reg_rule *reg_rule;
4918 const struct ieee80211_freq_range *freq_range;
4919 const struct ieee80211_power_rule *power_rule;
4920
458f4f9e 4921 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4922 freq_range = &reg_rule->freq_range;
4923 power_rule = &reg_rule->power_rule;
4924
4925 nl_reg_rule = nla_nest_start(msg, i);
4926 if (!nl_reg_rule)
458f4f9e 4927 goto nla_put_failure_rcu;
f130347c 4928
9360ffd1
DM		 4929 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4930 reg_rule->flags) ||
4931 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4932 freq_range->start_freq_khz) ||
4933 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4934 freq_range->end_freq_khz) ||
4935 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4936 freq_range->max_bandwidth_khz) ||
4937 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4938 power_rule->max_antenna_gain) ||
4939 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4940 power_rule->max_eirp))
458f4f9e 4941 goto nla_put_failure_rcu;
f130347c
LR		 4942
4943 nla_nest_end(msg, nl_reg_rule);
4944 }
458f4f9e 4945 rcu_read_unlock();
f130347c
LR		 4946
4947 nla_nest_end(msg, nl_reg_rules);
4948
4949 genlmsg_end(msg, hdr);
5fe231e8 4950 return genlmsg_reply(msg, info);
f130347c 4951
458f4f9e
JB		 4952nla_put_failure_rcu:
4953 rcu_read_unlock();
f130347c
LR		 4954nla_put_failure:
4955 genlmsg_cancel(msg, hdr);
efe1cf0c 4956put_failure:
d080e275 4957 nlmsg_free(msg);
5fe231e8 4958 return -EMSGSIZE;
f130347c
LR		 4959}
4960
b2e1b302
LR		 4961static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4962{
4963 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4964 struct nlattr *nl_reg_rule;
4965 char *alpha2 = NULL;
4966 int rem_reg_rules = 0, r = 0;
4967 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4968 u8 dfs_region = 0;
b2e1b302
LR		 4969 struct ieee80211_regdomain *rd = NULL;
4970
4971 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4972 return -EINVAL;
4973
4974 if (!info->attrs[NL80211_ATTR_REG_RULES])
4975 return -EINVAL;
4976
4977 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4978
8b60b078
LR		 4979 if (info->attrs[NL80211_ATTR_DFS_REGION])
4980 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4981
b2e1b302 4982 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4983 rem_reg_rules) {
b2e1b302
LR		 4984 num_rules++;
4985 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4986 return -EINVAL;
b2e1b302
LR		 4987 }
4988
b2e1b302 4989 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4990 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4991
4992 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4993 if (!rd)
4994 return -ENOMEM;
b2e1b302
LR		 4995
4996 rd->n_reg_rules = num_rules;
4997 rd->alpha2[0] = alpha2[0];
4998 rd->alpha2[1] = alpha2[1];
4999
8b60b078
LR		 5000 /*
5001 * Disable DFS master mode if the DFS region was
5002 * not supported or known on this kernel.
5003 */
5004 if (reg_supported_dfs_region(dfs_region))
5005 rd->dfs_region = dfs_region;
5006
b2e1b302 5007 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5008 rem_reg_rules) {
b2e1b302 5009 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 5010 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5011 reg_rule_policy);
b2e1b302
LR		 5012 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5013 if (r)
5014 goto bad_reg;
5015
5016 rule_idx++;
5017
d0e18f83
LR		 5018 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5019 r = -EINVAL;
b2e1b302 5020 goto bad_reg;
d0e18f83 5021 }
b2e1b302
LR		 5022 }
5023
b2e1b302 5024 r = set_regdom(rd);
6913b49a 5025 /* set_regdom took ownership */
1a919318 5026 rd = NULL;
b2e1b302 5027
d2372b31 5028 bad_reg:
b2e1b302 5029 kfree(rd);
d0e18f83 5030 return r;
b2e1b302
LR		 5031}
5032
83f5e2cf
JB		 5033static int validate_scan_freqs(struct nlattr *freqs)
5034{
5035 struct nlattr *attr1, *attr2;
5036 int n_channels = 0, tmp1, tmp2;
5037
5038 nla_for_each_nested(attr1, freqs, tmp1) {
5039 n_channels++;
5040 /*
5041 * Some hardware has a limited channel list for
5042 * scanning, and it is pretty much nonsensical
5043 * to scan for a channel twice, so disallow that
5044 * and don't require drivers to check that the
5045 * channel list they get isn't longer than what
5046 * they can scan, as long as they can scan all
5047 * the channels they registered at once.
5048 */
5049 nla_for_each_nested(attr2, freqs, tmp2)
5050 if (attr1 != attr2 &&
5051 nla_get_u32(attr1) == nla_get_u32(attr2))
5052 return 0;
5053 }
5054
5055 return n_channels;
5056}
5057
2a519311
JB		 5058static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5059{
4c476991 5060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5061 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5062 struct cfg80211_scan_request *request;
2a519311
JB		 5063 struct nlattr *attr;
5064 struct wiphy *wiphy;
83f5e2cf 5065 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5066 size_t ie_len;
2a519311 5067
f4a11bb0
JB		 5068 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5069 return -EINVAL;
5070
79c97e97 5071 wiphy = &rdev->wiphy;
2a519311 5072
4c476991
JB		 5073 if (!rdev->ops->scan)
5074 return -EOPNOTSUPP;
2a519311 5075
f9f47529
JB		 5076 if (rdev->scan_req) {
5077 err = -EBUSY;
5078 goto unlock;
5079 }
2a519311
JB		 5080
5081 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5082 n_channels = validate_scan_freqs(
5083 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5084 if (!n_channels) {
5085 err = -EINVAL;
5086 goto unlock;
5087 }
2a519311 5088 } else {
34850ab2 5089 enum ieee80211_band band;
83f5e2cf
JB		 5090 n_channels = 0;
5091
2a519311
JB		 5092 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5093 if (wiphy->bands[band])
5094 n_channels += wiphy->bands[band]->n_channels;
5095 }
5096
5097 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5098 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5099 n_ssids++;
5100
f9f47529
JB		 5101 if (n_ssids > wiphy->max_scan_ssids) {
5102 err = -EINVAL;
5103 goto unlock;
5104 }
2a519311 5105
70692ad2
JM		 5106 if (info->attrs[NL80211_ATTR_IE])
5107 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5108 else
5109 ie_len = 0;
5110
f9f47529
JB		 5111 if (ie_len > wiphy->max_scan_ie_len) {
5112 err = -EINVAL;
5113 goto unlock;
5114 }
18a83659 5115
2a519311 5116 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5117 + sizeof(*request->ssids) * n_ssids
5118 + sizeof(*request->channels) * n_channels
70692ad2 5119 + ie_len, GFP_KERNEL);
f9f47529
JB		 5120 if (!request) {
5121 err = -ENOMEM;
5122 goto unlock;
5123 }
2a519311 5124
2a519311 5125 if (n_ssids)
5ba63533 5126 request->ssids = (void *)&request->channels[n_channels];
2a519311 5127 request->n_ssids = n_ssids;
70692ad2
JM		 5128 if (ie_len) {
5129 if (request->ssids)
5130 request->ie = (void *)(request->ssids + n_ssids);
5131 else
5132 request->ie = (void *)(request->channels + n_channels);
5133 }
2a519311 5134
584991dc 5135 i = 0;
2a519311
JB		 5136 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5137 /* user specified, bail out if channel not found */
2a519311 5138 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5139 struct ieee80211_channel *chan;
5140
5141 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5142
5143 if (!chan) {
2a519311
JB		 5144 err = -EINVAL;
5145 goto out_free;
5146 }
584991dc
JB		 5147
5148 /* ignore disabled channels */
5149 if (chan->flags & IEEE80211_CHAN_DISABLED)
5150 continue;
5151
5152 request->channels[i] = chan;
2a519311
JB		 5153 i++;
5154 }
5155 } else {
34850ab2
JB		 5156 enum ieee80211_band band;
5157
2a519311 5158 /* all channels */
2a519311
JB		 5159 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5160 int j;
5161 if (!wiphy->bands[band])
5162 continue;
5163 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5164 struct ieee80211_channel *chan;
5165
5166 chan = &wiphy->bands[band]->channels[j];
5167
5168 if (chan->flags & IEEE80211_CHAN_DISABLED)
5169 continue;
5170
5171 request->channels[i] = chan;
2a519311
JB		 5172 i++;
5173 }
5174 }
5175 }
5176
584991dc
JB		 5177 if (!i) {
5178 err = -EINVAL;
5179 goto out_free;
5180 }
5181
5182 request->n_channels = i;
5183
2a519311
JB		 5184 i = 0;
5185 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5186 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5187 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5188 err = -EINVAL;
5189 goto out_free;
5190 }
57a27e1d 5191 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5192 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5193 i++;
5194 }
5195 }
5196
70692ad2
JM		 5197 if (info->attrs[NL80211_ATTR_IE]) {
5198 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5199 memcpy((void *)request->ie,
5200 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5201 request->ie_len);
5202 }
5203
34850ab2 5204 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5205 if (wiphy->bands[i])
5206 request->rates[i] =
5207 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5208
5209 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5210 nla_for_each_nested(attr,
5211 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5212 tmp) {
5213 enum ieee80211_band band = nla_type(attr);
5214
84404623 5215 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5216 err = -EINVAL;
5217 goto out_free;
5218 }
5219 err = ieee80211_get_ratemask(wiphy->bands[band],
5220 nla_data(attr),
5221 nla_len(attr),
5222 &request->rates[band]);
5223 if (err)
5224 goto out_free;
5225 }
5226 }
5227
46856bbf 5228 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5229 request->flags = nla_get_u32(
5230 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5231 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5232 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5233 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5234 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5235 err = -EOPNOTSUPP;
5236 goto out_free;
5237 }
5238 }
ed473771 5239
e9f935e3
RM		 5240 request->no_cck =
5241 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5242
fd014284 5243 request->wdev = wdev;
79c97e97 5244 request->wiphy = &rdev->wiphy;
15d6030b 5245 request->scan_start = jiffies;
2a519311 5246
79c97e97 5247 rdev->scan_req = request;
e35e4d28 5248 err = rdev_scan(rdev, request);
2a519311 5249
463d0183 5250 if (!err) {
fd014284
JB		 5251 nl80211_send_scan_start(rdev, wdev);
5252 if (wdev->netdev)
5253 dev_hold(wdev->netdev);
4c476991 5254 } else {
2a519311 5255 out_free:
79c97e97 5256 rdev->scan_req = NULL;
2a519311
JB		 5257 kfree(request);
5258 }
3b85875a 5259
f9f47529 5260 unlock:
2a519311
JB		 5261 return err;
5262}
5263
807f8a8c
LC		 5264static int nl80211_start_sched_scan(struct sk_buff *skb,
5265 struct genl_info *info)
5266{
5267 struct cfg80211_sched_scan_request *request;
5268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5269 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5270 struct nlattr *attr;
5271 struct wiphy *wiphy;
a1f1c21c 5272 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5273 u32 interval;
807f8a8c
LC		 5274 enum ieee80211_band band;
5275 size_t ie_len;
a1f1c21c 5276 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5277
5278 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5279 !rdev->ops->sched_scan_start)
5280 return -EOPNOTSUPP;
5281
5282 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5283 return -EINVAL;
5284
bbe6ad6d
LC		 5285 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5286 return -EINVAL;
5287
5288 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5289 if (interval == 0)
5290 return -EINVAL;
5291
807f8a8c
LC		 5292 wiphy = &rdev->wiphy;
5293
5294 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5295 n_channels = validate_scan_freqs(
5296 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5297 if (!n_channels)
5298 return -EINVAL;
5299 } else {
5300 n_channels = 0;
5301
5302 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5303 if (wiphy->bands[band])
5304 n_channels += wiphy->bands[band]->n_channels;
5305 }
5306
5307 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5308 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5309 tmp)
5310 n_ssids++;
5311
93b6aa69 5312 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5313 return -EINVAL;
5314
a1f1c21c
LC		 5315 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5316 nla_for_each_nested(attr,
5317 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5318 tmp)
5319 n_match_sets++;
5320
5321 if (n_match_sets > wiphy->max_match_sets)
5322 return -EINVAL;
5323
807f8a8c
LC		 5324 if (info->attrs[NL80211_ATTR_IE])
5325 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5326 else
5327 ie_len = 0;
5328
5a865bad 5329 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5330 return -EINVAL;
5331
c10841ca
LC		 5332 if (rdev->sched_scan_req) {
5333 err = -EINPROGRESS;
5334 goto out;
5335 }
5336
807f8a8c 5337 request = kzalloc(sizeof(*request)
a2cd43c5 5338 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5339 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5340 + sizeof(*request->channels) * n_channels
807f8a8c 5341 + ie_len, GFP_KERNEL);
c10841ca
LC		 5342 if (!request) {
5343 err = -ENOMEM;
5344 goto out;
5345 }
807f8a8c
LC		 5346
5347 if (n_ssids)
5348 request->ssids = (void *)&request->channels[n_channels];
5349 request->n_ssids = n_ssids;
5350 if (ie_len) {
5351 if (request->ssids)
5352 request->ie = (void *)(request->ssids + n_ssids);
5353 else
5354 request->ie = (void *)(request->channels + n_channels);
5355 }
5356
a1f1c21c
LC		 5357 if (n_match_sets) {
5358 if (request->ie)
5359 request->match_sets = (void *)(request->ie + ie_len);
5360 else if (request->ssids)
5361 request->match_sets =
5362 (void *)(request->ssids + n_ssids);
5363 else
5364 request->match_sets =
5365 (void *)(request->channels + n_channels);
5366 }
5367 request->n_match_sets = n_match_sets;
5368
807f8a8c
LC		 5369 i = 0;
5370 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5371 /* user specified, bail out if channel not found */
5372 nla_for_each_nested(attr,
5373 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5374 tmp) {
5375 struct ieee80211_channel *chan;
5376
5377 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5378
5379 if (!chan) {
5380 err = -EINVAL;
5381 goto out_free;
5382 }
5383
5384 /* ignore disabled channels */
5385 if (chan->flags & IEEE80211_CHAN_DISABLED)
5386 continue;
5387
5388 request->channels[i] = chan;
5389 i++;
5390 }
5391 } else {
5392 /* all channels */
5393 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5394 int j;
5395 if (!wiphy->bands[band])
5396 continue;
5397 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5398 struct ieee80211_channel *chan;
5399
5400 chan = &wiphy->bands[band]->channels[j];
5401
5402 if (chan->flags & IEEE80211_CHAN_DISABLED)
5403 continue;
5404
5405 request->channels[i] = chan;
5406 i++;
5407 }
5408 }
5409 }
5410
5411 if (!i) {
5412 err = -EINVAL;
5413 goto out_free;
5414 }
5415
5416 request->n_channels = i;
5417
5418 i = 0;
5419 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5420 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5421 tmp) {
57a27e1d 5422 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5423 err = -EINVAL;
5424 goto out_free;
5425 }
57a27e1d 5426 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5427 memcpy(request->ssids[i].ssid, nla_data(attr),
5428 nla_len(attr));
807f8a8c
LC		 5429 i++;
5430 }
5431 }
5432
a1f1c21c
LC		 5433 i = 0;
5434 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5435 nla_for_each_nested(attr,
5436 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5437 tmp) {
88e920b4 5438 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5439
5440 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5441 nla_data(attr), nla_len(attr),
5442 nl80211_match_policy);
4a4ab0d7 5443 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5444 if (ssid) {
5445 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5446 err = -EINVAL;
5447 goto out_free;
5448 }
5449 memcpy(request->match_sets[i].ssid.ssid,
5450 nla_data(ssid), nla_len(ssid));
5451 request->match_sets[i].ssid.ssid_len =
5452 nla_len(ssid);
5453 }
88e920b4
TP		 5454 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5455 if (rssi)
5456 request->rssi_thold = nla_get_u32(rssi);
5457 else
5458 request->rssi_thold =
5459 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5460 i++;
5461 }
5462 }
5463
807f8a8c
LC		 5464 if (info->attrs[NL80211_ATTR_IE]) {
5465 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5466 memcpy((void *)request->ie,
5467 nla_data(info->attrs[NL80211_ATTR_IE]),
5468 request->ie_len);
5469 }
5470
46856bbf 5471 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5472 request->flags = nla_get_u32(
5473 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5474 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5475 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5476 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5477 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5478 err = -EOPNOTSUPP;
5479 goto out_free;
5480 }
5481 }
ed473771 5482
807f8a8c
LC		 5483 request->dev = dev;
5484 request->wiphy = &rdev->wiphy;
bbe6ad6d 5485 request->interval = interval;
15d6030b 5486 request->scan_start = jiffies;
807f8a8c 5487
e35e4d28 5488 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5489 if (!err) {
5490 rdev->sched_scan_req = request;
5491 nl80211_send_sched_scan(rdev, dev,
5492 NL80211_CMD_START_SCHED_SCAN);
5493 goto out;
5494 }
5495
5496out_free:
5497 kfree(request);
5498out:
5499 return err;
5500}
5501
5502static int nl80211_stop_sched_scan(struct sk_buff *skb,
5503 struct genl_info *info)
5504{
5505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5506
5507 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5508 !rdev->ops->sched_scan_stop)
5509 return -EOPNOTSUPP;
5510
5fe231e8 5511 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5512}
5513
04f39047
SW		 5514static int nl80211_start_radar_detection(struct sk_buff *skb,
5515 struct genl_info *info)
5516{
5517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5518 struct net_device *dev = info->user_ptr[1];
5519 struct wireless_dev *wdev = dev->ieee80211_ptr;
5520 struct cfg80211_chan_def chandef;
5521 int err;
5522
5523 err = nl80211_parse_chandef(rdev, info, &chandef);
5524 if (err)
5525 return err;
5526
5527 if (wdev->cac_started)
5528 return -EBUSY;
5529
5530 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5531 if (err < 0)
5532 return err;
5533
5534 if (err == 0)
5535 return -EINVAL;
5536
5537 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5538 return -EINVAL;
5539
5540 if (!rdev->ops->start_radar_detection)
5541 return -EOPNOTSUPP;
5542
04f39047
SW		 5543 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5544 chandef.chan, CHAN_MODE_SHARED,
5545 BIT(chandef.width));
5546 if (err)
5fe231e8 5547 return err;
04f39047
SW		 5548
5549 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5550 if (!err) {
5551 wdev->channel = chandef.chan;
5552 wdev->cac_started = true;
5553 wdev->cac_start_time = jiffies;
5554 }
04f39047
SW		 5555 return err;
5556}
5557
9720bb3a
JB		 5558static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5559 u32 seq, int flags,
2a519311 5560 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5561 struct wireless_dev *wdev,
5562 struct cfg80211_internal_bss *intbss)
2a519311 5563{
48ab905d 5564 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5565 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5566 void *hdr;
5567 struct nlattr *bss;
8cef2c9d 5568 bool tsf = false;
48ab905d
JB		 5569
5570 ASSERT_WDEV_LOCK(wdev);
2a519311 5571
15e47304 5572 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5573 NL80211_CMD_NEW_SCAN_RESULTS);
5574 if (!hdr)
5575 return -1;
5576
9720bb3a
JB		 5577 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5578
97990a06
JB		 5579 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5580 goto nla_put_failure;
5581 if (wdev->netdev &&
9360ffd1
DM		 5582 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5583 goto nla_put_failure;
97990a06
JB		 5584 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5585 goto nla_put_failure;
2a519311
JB		 5586
5587 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5588 if (!bss)
5589 goto nla_put_failure;
9360ffd1 5590 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5591 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5592 goto nla_put_failure;
9caf0364
JB		 5593
5594 rcu_read_lock();
5595 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5596 if (ies) {
5597 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5598 goto fail_unlock_rcu;
5599 tsf = true;
5600 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5601 ies->len, ies->data))
5602 goto fail_unlock_rcu;
9caf0364
JB		 5603 }
5604 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5605 if (ies) {
5606 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5607 goto fail_unlock_rcu;
5608 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5609 ies->len, ies->data))
5610 goto fail_unlock_rcu;
9caf0364
JB		 5611 }
5612 rcu_read_unlock();
5613
9360ffd1
DM		 5614 if (res->beacon_interval &&
5615 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5616 goto nla_put_failure;
5617 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5618 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5619 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5620 jiffies_to_msecs(jiffies - intbss->ts)))
5621 goto nla_put_failure;
2a519311 5622
77965c97 5623 switch (rdev->wiphy.signal_type) {
2a519311 5624 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5625 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5626 goto nla_put_failure;
2a519311
JB		 5627 break;
5628 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5629 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5630 goto nla_put_failure;
2a519311
JB		 5631 break;
5632 default:
5633 break;
5634 }
5635
48ab905d 5636 switch (wdev->iftype) {
074ac8df 5637 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5638 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5639 if (intbss == wdev->current_bss &&
5640 nla_put_u32(msg, NL80211_BSS_STATUS,
5641 NL80211_BSS_STATUS_ASSOCIATED))
5642 goto nla_put_failure;
48ab905d
JB		 5643 break;
5644 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5645 if (intbss == wdev->current_bss &&
5646 nla_put_u32(msg, NL80211_BSS_STATUS,
5647 NL80211_BSS_STATUS_IBSS_JOINED))
5648 goto nla_put_failure;
48ab905d
JB		 5649 break;
5650 default:
5651 break;
5652 }
5653
2a519311
JB		 5654 nla_nest_end(msg, bss);
5655
5656 return genlmsg_end(msg, hdr);
5657
8cef2c9d
JB		 5658 fail_unlock_rcu:
5659 rcu_read_unlock();
2a519311
JB		 5660 nla_put_failure:
5661 genlmsg_cancel(msg, hdr);
5662 return -EMSGSIZE;
5663}
5664
97990a06 5665static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5666{
48ab905d 5667 struct cfg80211_registered_device *rdev;
2a519311 5668 struct cfg80211_internal_bss *scan;
48ab905d 5669 struct wireless_dev *wdev;
97990a06 5670 int start = cb->args[2], idx = 0;
2a519311
JB		 5671 int err;
5672
97990a06 5673 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5674 if (err)
5675 return err;
2a519311 5676
48ab905d
JB		 5677 wdev_lock(wdev);
5678 spin_lock_bh(&rdev->bss_lock);
5679 cfg80211_bss_expire(rdev);
5680
9720bb3a
JB		 5681 cb->seq = rdev->bss_generation;
5682
48ab905d 5683 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5684 if (++idx <= start)
5685 continue;
9720bb3a 5686 if (nl80211_send_bss(skb, cb,
2a519311 5687 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5688 rdev, wdev, scan) < 0) {
2a519311 5689 idx--;
67748893 5690 break;
2a519311
JB		 5691 }
5692 }
5693
48ab905d
JB		 5694 spin_unlock_bh(&rdev->bss_lock);
5695 wdev_unlock(wdev);
2a519311 5696
97990a06
JB		 5697 cb->args[2] = idx;
5698 nl80211_finish_wdev_dump(rdev);
2a519311 5699
67748893 5700 return skb->len;
2a519311
JB		 5701}
5702
15e47304 5703static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5704 int flags, struct net_device *dev,
5705 struct survey_info *survey)
5706{
5707 void *hdr;
5708 struct nlattr *infoattr;
5709
15e47304 5710 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5711 NL80211_CMD_NEW_SURVEY_RESULTS);
5712 if (!hdr)
5713 return -ENOMEM;
5714
9360ffd1
DM		 5715 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5716 goto nla_put_failure;
61fa713c
HS		 5717
5718 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5719 if (!infoattr)
5720 goto nla_put_failure;
5721
9360ffd1
DM		 5722 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5723 survey->channel->center_freq))
5724 goto nla_put_failure;
5725
5726 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5727 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5728 goto nla_put_failure;
5729 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5730 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5731 goto nla_put_failure;
5732 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5733 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5734 survey->channel_time))
5735 goto nla_put_failure;
5736 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5737 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5738 survey->channel_time_busy))
5739 goto nla_put_failure;
5740 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5741 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5742 survey->channel_time_ext_busy))
5743 goto nla_put_failure;
5744 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5745 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5746 survey->channel_time_rx))
5747 goto nla_put_failure;
5748 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5749 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5750 survey->channel_time_tx))
5751 goto nla_put_failure;
61fa713c
HS		 5752
5753 nla_nest_end(msg, infoattr);
5754
5755 return genlmsg_end(msg, hdr);
5756
5757 nla_put_failure:
5758 genlmsg_cancel(msg, hdr);
5759 return -EMSGSIZE;
5760}
5761
5762static int nl80211_dump_survey(struct sk_buff *skb,
5763 struct netlink_callback *cb)
5764{
5765 struct survey_info survey;
5766 struct cfg80211_registered_device *dev;
97990a06
JB		 5767 struct wireless_dev *wdev;
5768 int survey_idx = cb->args[2];
61fa713c
HS		 5769 int res;
5770
97990a06 5771 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 5772 if (res)
5773 return res;
61fa713c 5774
97990a06
JB		 5775 if (!wdev->netdev) {
5776 res = -EINVAL;
5777 goto out_err;
5778 }
5779
61fa713c
HS		 5780 if (!dev->ops->dump_survey) {
5781 res = -EOPNOTSUPP;
5782 goto out_err;
5783 }
5784
5785 while (1) {
180cdc79
LR		 5786 struct ieee80211_channel *chan;
5787
97990a06 5788 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 5789 if (res == -ENOENT)
5790 break;
5791 if (res)
5792 goto out_err;
5793
180cdc79
LR		 5794 /* Survey without a channel doesn't make sense */
5795 if (!survey.channel) {
5796 res = -EINVAL;
5797 goto out;
5798 }
5799
5800 chan = ieee80211_get_channel(&dev->wiphy,
5801 survey.channel->center_freq);
5802 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5803 survey_idx++;
5804 continue;
5805 }
5806
61fa713c 5807 if (nl80211_send_survey(skb,
15e47304 5808 NETLINK_CB(cb->skb).portid,
61fa713c 5809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5810 wdev->netdev, &survey) < 0)
61fa713c
HS		 5811 goto out;
5812 survey_idx++;
5813 }
5814
5815 out:
97990a06 5816 cb->args[2] = survey_idx;
61fa713c
HS		 5817 res = skb->len;
5818 out_err:
97990a06 5819 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 5820 return res;
5821}
5822
b23aa676
SO		 5823static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5824{
5825 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5826 NL80211_WPA_VERSION_2));
5827}
5828
636a5d36
JM		 5829static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5830{
4c476991
JB		 5831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5832 struct net_device *dev = info->user_ptr[1];
19957bb3 5833 struct ieee80211_channel *chan;
e39e5b5e
JM		 5834 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5835 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5836 enum nl80211_auth_type auth_type;
fffd0934 5837 struct key_parse key;
d5cdfacb 5838 bool local_state_change;
636a5d36 5839
f4a11bb0
JB		 5840 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5841 return -EINVAL;
5842
5843 if (!info->attrs[NL80211_ATTR_MAC])
5844 return -EINVAL;
5845
1778092e
JM		 5846 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5847 return -EINVAL;
5848
19957bb3
JB		 5849 if (!info->attrs[NL80211_ATTR_SSID])
5850 return -EINVAL;
5851
5852 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5853 return -EINVAL;
5854
fffd0934
JB		 5855 err = nl80211_parse_key(info, &key);
5856 if (err)
5857 return err;
5858
5859 if (key.idx >= 0) {
e31b8213
JB		 5860 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5861 return -EINVAL;
fffd0934
JB		 5862 if (!key.p.key || !key.p.key_len)
5863 return -EINVAL;
5864 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5865 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5866 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5867 key.p.key_len != WLAN_KEY_LEN_WEP104))
5868 return -EINVAL;
5869 if (key.idx > 4)
5870 return -EINVAL;
5871 } else {
5872 key.p.key_len = 0;
5873 key.p.key = NULL;
5874 }
5875
afea0b7a
JB		 5876 if (key.idx >= 0) {
5877 int i;
5878 bool ok = false;
5879 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5880 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5881 ok = true;
5882 break;
5883 }
5884 }
4c476991
JB		 5885 if (!ok)
5886 return -EINVAL;
afea0b7a
JB		 5887 }
5888
4c476991
JB		 5889 if (!rdev->ops->auth)
5890 return -EOPNOTSUPP;
636a5d36 5891
074ac8df 5892 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5893 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5894 return -EOPNOTSUPP;
eec60b03 5895
19957bb3 5896 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5897 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5898 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5899 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5900 return -EINVAL;
636a5d36 5901
19957bb3
JB		 5902 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5903 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5904
5905 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5906 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5907 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5908 }
5909
19957bb3 5910 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5911 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5912 return -EINVAL;
636a5d36 5913
e39e5b5e
JM		 5914 if (auth_type == NL80211_AUTHTYPE_SAE &&
5915 !info->attrs[NL80211_ATTR_SAE_DATA])
5916 return -EINVAL;
5917
5918 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5919 if (auth_type != NL80211_AUTHTYPE_SAE)
5920 return -EINVAL;
5921 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5922 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5923 /* need to include at least Auth Transaction and Status Code */
5924 if (sae_data_len < 4)
5925 return -EINVAL;
5926 }
5927
d5cdfacb
JM		 5928 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5929
95de817b
JB		 5930 /*
5931 * Since we no longer track auth state, ignore
5932 * requests to only change local state.
5933 */
5934 if (local_state_change)
5935 return 0;
5936
91bf9b26
JB		 5937 wdev_lock(dev->ieee80211_ptr);
5938 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5939 ssid, ssid_len, ie, ie_len,
5940 key.p.key, key.p.key_len, key.idx,
5941 sae_data, sae_data_len);
5942 wdev_unlock(dev->ieee80211_ptr);
5943 return err;
636a5d36
JM		 5944}
5945
c0692b8f
JB		 5946static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5947 struct genl_info *info,
3dc27d25
JB		 5948 struct cfg80211_crypto_settings *settings,
5949 int cipher_limit)
b23aa676 5950{
c0b2bbd8
JB		 5951 memset(settings, 0, sizeof(*settings));
5952
b23aa676
SO		 5953 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5954
c0692b8f
JB		 5955 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5956 u16 proto;
5957 proto = nla_get_u16(
5958 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5959 settings->control_port_ethertype = cpu_to_be16(proto);
5960 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5961 proto != ETH_P_PAE)
5962 return -EINVAL;
5963 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5964 settings->control_port_no_encrypt = true;
5965 } else
5966 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5967
b23aa676
SO		 5968 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5969 void *data;
5970 int len, i;
5971
5972 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5973 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5974 settings->n_ciphers_pairwise = len / sizeof(u32);
5975
5976 if (len % sizeof(u32))
5977 return -EINVAL;
5978
3dc27d25 5979 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5980 return -EINVAL;
5981
5982 memcpy(settings->ciphers_pairwise, data, len);
5983
5984 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5985 if (!cfg80211_supported_cipher_suite(
5986 &rdev->wiphy,
b23aa676
SO		 5987 settings->ciphers_pairwise[i]))
5988 return -EINVAL;
5989 }
5990
5991 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5992 settings->cipher_group =
5993 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5994 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5995 settings->cipher_group))
b23aa676
SO		 5996 return -EINVAL;
5997 }
5998
5999 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6000 settings->wpa_versions =
6001 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6002 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6003 return -EINVAL;
6004 }
6005
6006 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6007 void *data;
6d30240e 6008 int len;
b23aa676
SO		 6009
6010 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6011 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6012 settings->n_akm_suites = len / sizeof(u32);
6013
6014 if (len % sizeof(u32))
6015 return -EINVAL;
6016
1b9ca027
JM		 6017 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6018 return -EINVAL;
6019
b23aa676 6020 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6021 }
6022
6023 return 0;
6024}
6025
636a5d36
JM		 6026static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6027{
4c476991
JB		 6028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6029 struct net_device *dev = info->user_ptr[1];
f444de05 6030 struct ieee80211_channel *chan;
f62fab73
JB		 6031 struct cfg80211_assoc_request req = {};
6032 const u8 *bssid, *ssid;
6033 int err, ssid_len = 0;
636a5d36 6034
f4a11bb0
JB		 6035 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6036 return -EINVAL;
6037
6038 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6039 !info->attrs[NL80211_ATTR_SSID] ||
6040 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6041 return -EINVAL;
6042
4c476991
JB		 6043 if (!rdev->ops->assoc)
6044 return -EOPNOTSUPP;
636a5d36 6045
074ac8df 6046 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6047 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6048 return -EOPNOTSUPP;
eec60b03 6049
19957bb3 6050 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6051
19957bb3
JB		 6052 chan = ieee80211_get_channel(&rdev->wiphy,
6053 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6054 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6055 return -EINVAL;
636a5d36 6056
19957bb3
JB		 6057 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6058 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6059
6060 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6061 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6062 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6063 }
6064
dc6382ce 6065 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6066 enum nl80211_mfp mfp =
dc6382ce 6067 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6068 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6069 req.use_mfp = true;
4c476991
JB		 6070 else if (mfp != NL80211_MFP_NO)
6071 return -EINVAL;
dc6382ce
JM		 6072 }
6073
3e5d7649 6074 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6075 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6076
7e7c8926 6077 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6078 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6079
6080 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6081 memcpy(&req.ht_capa_mask,
6082 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6083 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6084
6085 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6086 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6087 return -EINVAL;
f62fab73
JB		 6088 memcpy(&req.ht_capa,
6089 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6090 sizeof(req.ht_capa));
7e7c8926
BG		 6091 }
6092
ee2aca34 6093 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6094 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6095
6096 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6097 memcpy(&req.vht_capa_mask,
6098 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6099 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6100
6101 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6102 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6103 return -EINVAL;
f62fab73
JB		 6104 memcpy(&req.vht_capa,
6105 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6106 sizeof(req.vht_capa));
ee2aca34
JB		 6107 }
6108
f62fab73 6109 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6110 if (!err) {
6111 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6112 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6113 ssid, ssid_len, &req);
91bf9b26
JB		 6114 wdev_unlock(dev->ieee80211_ptr);
6115 }
636a5d36 6116
636a5d36
JM		 6117 return err;
6118}
6119
6120static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6121{
4c476991
JB		 6122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6123 struct net_device *dev = info->user_ptr[1];
19957bb3 6124 const u8 *ie = NULL, *bssid;
91bf9b26 6125 int ie_len = 0, err;
19957bb3 6126 u16 reason_code;
d5cdfacb 6127 bool local_state_change;
636a5d36 6128
f4a11bb0
JB		 6129 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6130 return -EINVAL;
6131
6132 if (!info->attrs[NL80211_ATTR_MAC])
6133 return -EINVAL;
6134
6135 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6136 return -EINVAL;
6137
4c476991
JB		 6138 if (!rdev->ops->deauth)
6139 return -EOPNOTSUPP;
636a5d36 6140
074ac8df 6141 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6142 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6143 return -EOPNOTSUPP;
eec60b03 6144
19957bb3 6145 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6146
19957bb3
JB		 6147 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6148 if (reason_code == 0) {
f4a11bb0 6149 /* Reason Code 0 is reserved */
4c476991 6150 return -EINVAL;
255e737e 6151 }
636a5d36
JM		 6152
6153 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6154 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6155 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6156 }
6157
d5cdfacb
JM		 6158 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6159
91bf9b26
JB		 6160 wdev_lock(dev->ieee80211_ptr);
6161 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6162 local_state_change);
6163 wdev_unlock(dev->ieee80211_ptr);
6164 return err;
636a5d36
JM		 6165}
6166
6167static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6168{
4c476991
JB		 6169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6170 struct net_device *dev = info->user_ptr[1];
19957bb3 6171 const u8 *ie = NULL, *bssid;
91bf9b26 6172 int ie_len = 0, err;
19957bb3 6173 u16 reason_code;
d5cdfacb 6174 bool local_state_change;
636a5d36 6175
f4a11bb0
JB		 6176 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6177 return -EINVAL;
6178
6179 if (!info->attrs[NL80211_ATTR_MAC])
6180 return -EINVAL;
6181
6182 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6183 return -EINVAL;
6184
4c476991
JB		 6185 if (!rdev->ops->disassoc)
6186 return -EOPNOTSUPP;
636a5d36 6187
074ac8df 6188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6190 return -EOPNOTSUPP;
eec60b03 6191
19957bb3 6192 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6193
19957bb3
JB		 6194 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6195 if (reason_code == 0) {
f4a11bb0 6196 /* Reason Code 0 is reserved */
4c476991 6197 return -EINVAL;
255e737e 6198 }
636a5d36
JM		 6199
6200 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6201 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6202 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6203 }
6204
d5cdfacb
JM		 6205 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6206
91bf9b26
JB		 6207 wdev_lock(dev->ieee80211_ptr);
6208 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6209 local_state_change);
6210 wdev_unlock(dev->ieee80211_ptr);
6211 return err;
636a5d36
JM		 6212}
6213
dd5b4cc7
FF		 6214static bool
6215nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6216 int mcast_rate[IEEE80211_NUM_BANDS],
6217 int rateval)
6218{
6219 struct wiphy *wiphy = &rdev->wiphy;
6220 bool found = false;
6221 int band, i;
6222
6223 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6224 struct ieee80211_supported_band *sband;
6225
6226 sband = wiphy->bands[band];
6227 if (!sband)
6228 continue;
6229
6230 for (i = 0; i < sband->n_bitrates; i++) {
6231 if (sband->bitrates[i].bitrate == rateval) {
6232 mcast_rate[band] = i + 1;
6233 found = true;
6234 break;
6235 }
6236 }
6237 }
6238
6239 return found;
6240}
6241
04a773ad
JB		 6242static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6243{
4c476991
JB		 6244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6245 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6246 struct cfg80211_ibss_params ibss;
6247 struct wiphy *wiphy;
fffd0934 6248 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6249 int err;
6250
8e30bc55
JB		 6251 memset(&ibss, 0, sizeof(ibss));
6252
04a773ad
JB		 6253 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6254 return -EINVAL;
6255
683b6d3b 6256 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6257 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6258 return -EINVAL;
6259
8e30bc55
JB		 6260 ibss.beacon_interval = 100;
6261
6262 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6263 ibss.beacon_interval =
6264 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6265 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6266 return -EINVAL;
6267 }
6268
4c476991
JB		 6269 if (!rdev->ops->join_ibss)
6270 return -EOPNOTSUPP;
04a773ad 6271
4c476991
JB		 6272 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6273 return -EOPNOTSUPP;
04a773ad 6274
79c97e97 6275 wiphy = &rdev->wiphy;
04a773ad 6276
39193498 6277 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6278 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6279
6280 if (!is_valid_ether_addr(ibss.bssid))
6281 return -EINVAL;
6282 }
04a773ad
JB		 6283 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6284 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6285
6286 if (info->attrs[NL80211_ATTR_IE]) {
6287 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6288 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6289 }
6290
683b6d3b
JB		 6291 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6292 if (err)
6293 return err;
04a773ad 6294
683b6d3b 6295 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6296 return -EINVAL;
6297
2f301ab2
SW		 6298 switch (ibss.chandef.width) {
6299 case NL80211_CHAN_WIDTH_20_NOHT:
6300 break;
6301 case NL80211_CHAN_WIDTH_20:
6302 case NL80211_CHAN_WIDTH_40:
6303 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6304 break;
6305 default:
c04d6150 6306 return -EINVAL;
2f301ab2 6307 }
db9c64cf 6308
04a773ad 6309 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6310 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6311
fbd2c8dc
TP		 6312 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6313 u8 *rates =
6314 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6315 int n_rates =
6316 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6317 struct ieee80211_supported_band *sband =
683b6d3b 6318 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6319
34850ab2
JB		 6320 err = ieee80211_get_ratemask(sband, rates, n_rates,
6321 &ibss.basic_rates);
6322 if (err)
6323 return err;
fbd2c8dc 6324 }
dd5b4cc7
FF		 6325
6326 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6327 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6328 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6329 return -EINVAL;
fbd2c8dc 6330
4c476991 6331 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6332 bool no_ht = false;
6333
4c476991 6334 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6335 info->attrs[NL80211_ATTR_KEYS],
6336 &no_ht);
4c476991
JB		 6337 if (IS_ERR(connkeys))
6338 return PTR_ERR(connkeys);
de7044ee 6339
3d9d1d66
JB		 6340 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6341 no_ht) {
de7044ee
SM		 6342 kfree(connkeys);
6343 return -EINVAL;
6344 }
4c476991 6345 }
04a773ad 6346
267335d6
AQ		 6347 ibss.control_port =
6348 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6349
4c476991 6350 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6351 if (err)
6352 kfree(connkeys);
04a773ad
JB		 6353 return err;
6354}
6355
6356static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6357{
4c476991
JB		 6358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6359 struct net_device *dev = info->user_ptr[1];
04a773ad 6360
4c476991
JB		 6361 if (!rdev->ops->leave_ibss)
6362 return -EOPNOTSUPP;
04a773ad 6363
4c476991
JB		 6364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6365 return -EOPNOTSUPP;
04a773ad 6366
4c476991 6367 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6368}
6369
f4e583c8
AQ		 6370static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6371{
6372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6373 struct net_device *dev = info->user_ptr[1];
6374 int mcast_rate[IEEE80211_NUM_BANDS];
6375 u32 nla_rate;
6376 int err;
6377
6378 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6379 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6380 return -EOPNOTSUPP;
6381
6382 if (!rdev->ops->set_mcast_rate)
6383 return -EOPNOTSUPP;
6384
6385 memset(mcast_rate, 0, sizeof(mcast_rate));
6386
6387 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6388 return -EINVAL;
6389
6390 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6391 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6392 return -EINVAL;
6393
6394 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6395
6396 return err;
6397}
6398
6399
aff89a9b
JB		 6400#ifdef CONFIG_NL80211_TESTMODE
6401static struct genl_multicast_group nl80211_testmode_mcgrp = {
6402 .name = "testmode",
6403};
6404
6405static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6406{
4c476991 6407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6408 int err;
6409
6410 if (!info->attrs[NL80211_ATTR_TESTDATA])
6411 return -EINVAL;
6412
aff89a9b
JB		 6413 err = -EOPNOTSUPP;
6414 if (rdev->ops->testmode_cmd) {
6415 rdev->testmode_info = info;
e35e4d28 6416 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6417 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6418 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6419 rdev->testmode_info = NULL;
6420 }
6421
aff89a9b
JB		 6422 return err;
6423}
6424
71063f0e
WYG		 6425static int nl80211_testmode_dump(struct sk_buff *skb,
6426 struct netlink_callback *cb)
6427{
00918d33 6428 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6429 int err;
6430 long phy_idx;
6431 void *data = NULL;
6432 int data_len = 0;
6433
5fe231e8
JB		 6434 rtnl_lock();
6435
71063f0e
WYG		 6436 if (cb->args[0]) {
6437 /*
6438 * 0 is a valid index, but not valid for args[0],
6439 * so we need to offset by 1.
6440 */
6441 phy_idx = cb->args[0] - 1;
6442 } else {
6443 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6444 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6445 nl80211_policy);
6446 if (err)
5fe231e8 6447 goto out_err;
00918d33 6448
2bd7e35d
JB		 6449 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6450 nl80211_fam.attrbuf);
6451 if (IS_ERR(rdev)) {
5fe231e8
JB		 6452 err = PTR_ERR(rdev);
6453 goto out_err;
00918d33 6454 }
2bd7e35d
JB		 6455 phy_idx = rdev->wiphy_idx;
6456 rdev = NULL;
2bd7e35d 6457
71063f0e
WYG		 6458 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6459 cb->args[1] =
6460 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6461 }
6462
6463 if (cb->args[1]) {
6464 data = nla_data((void *)cb->args[1]);
6465 data_len = nla_len((void *)cb->args[1]);
6466 }
6467
00918d33
JB		 6468 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6469 if (!rdev) {
5fe231e8
JB		 6470 err = -ENOENT;
6471 goto out_err;
71063f0e 6472 }
71063f0e 6473
00918d33 6474 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6475 err = -EOPNOTSUPP;
6476 goto out_err;
6477 }
6478
6479 while (1) {
15e47304 6480 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6481 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6482 NL80211_CMD_TESTMODE);
6483 struct nlattr *tmdata;
6484
9360ffd1 6485 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6486 genlmsg_cancel(skb, hdr);
6487 break;
6488 }
6489
6490 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6491 if (!tmdata) {
6492 genlmsg_cancel(skb, hdr);
6493 break;
6494 }
e35e4d28 6495 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6496 nla_nest_end(skb, tmdata);
6497
6498 if (err == -ENOBUFS || err == -ENOENT) {
6499 genlmsg_cancel(skb, hdr);
6500 break;
6501 } else if (err) {
6502 genlmsg_cancel(skb, hdr);
6503 goto out_err;
6504 }
6505
6506 genlmsg_end(skb, hdr);
6507 }
6508
6509 err = skb->len;
6510 /* see above */
6511 cb->args[0] = phy_idx + 1;
6512 out_err:
5fe231e8 6513 rtnl_unlock();
71063f0e
WYG		 6514 return err;
6515}
6516
aff89a9b
JB		 6517static struct sk_buff *
6518__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6519 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6520{
6521 struct sk_buff *skb;
6522 void *hdr;
6523 struct nlattr *data;
6524
6525 skb = nlmsg_new(approxlen + 100, gfp);
6526 if (!skb)
6527 return NULL;
6528
15e47304 6529 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6530 if (!hdr) {
6531 kfree_skb(skb);
6532 return NULL;
6533 }
6534
9360ffd1
DM		 6535 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6536 goto nla_put_failure;
aff89a9b
JB		 6537 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6538
6539 ((void **)skb->cb)[0] = rdev;
6540 ((void **)skb->cb)[1] = hdr;
6541 ((void **)skb->cb)[2] = data;
6542
6543 return skb;
6544
6545 nla_put_failure:
6546 kfree_skb(skb);
6547 return NULL;
6548}
6549
6550struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6551 int approxlen)
6552{
6553 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6554
6555 if (WARN_ON(!rdev->testmode_info))
6556 return NULL;
6557
6558 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6559 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6560 rdev->testmode_info->snd_seq,
6561 GFP_KERNEL);
6562}
6563EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6564
6565int cfg80211_testmode_reply(struct sk_buff *skb)
6566{
6567 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6568 void *hdr = ((void **)skb->cb)[1];
6569 struct nlattr *data = ((void **)skb->cb)[2];
6570
6571 if (WARN_ON(!rdev->testmode_info)) {
6572 kfree_skb(skb);
6573 return -EINVAL;
6574 }
6575
6576 nla_nest_end(skb, data);
6577 genlmsg_end(skb, hdr);
6578 return genlmsg_reply(skb, rdev->testmode_info);
6579}
6580EXPORT_SYMBOL(cfg80211_testmode_reply);
6581
6582struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6583 int approxlen, gfp_t gfp)
6584{
6585 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6586
6587 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6588}
6589EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6590
6591void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6592{
6593 void *hdr = ((void **)skb->cb)[1];
6594 struct nlattr *data = ((void **)skb->cb)[2];
6595
6596 nla_nest_end(skb, data);
6597 genlmsg_end(skb, hdr);
6598 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6599}
6600EXPORT_SYMBOL(cfg80211_testmode_event);
6601#endif
6602
b23aa676
SO		 6603static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6604{
4c476991
JB		 6605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6606 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6607 struct cfg80211_connect_params connect;
6608 struct wiphy *wiphy;
fffd0934 6609 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6610 int err;
6611
6612 memset(&connect, 0, sizeof(connect));
6613
6614 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6615 return -EINVAL;
6616
6617 if (!info->attrs[NL80211_ATTR_SSID] ||
6618 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6619 return -EINVAL;
6620
6621 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6622 connect.auth_type =
6623 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6624 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6625 NL80211_CMD_CONNECT))
b23aa676
SO		 6626 return -EINVAL;
6627 } else
6628 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6629
6630 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6631
c0692b8f 6632 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6633 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6634 if (err)
6635 return err;
b23aa676 6636
074ac8df 6637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6638 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6639 return -EOPNOTSUPP;
b23aa676 6640
79c97e97 6641 wiphy = &rdev->wiphy;
b23aa676 6642
4486ea98
BS		 6643 connect.bg_scan_period = -1;
6644 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6645 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6646 connect.bg_scan_period =
6647 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6648 }
6649
b23aa676
SO		 6650 if (info->attrs[NL80211_ATTR_MAC])
6651 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6652 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6653 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6654
6655 if (info->attrs[NL80211_ATTR_IE]) {
6656 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6657 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6658 }
6659
cee00a95
JM		 6660 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6661 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6662 if (connect.mfp != NL80211_MFP_REQUIRED &&
6663 connect.mfp != NL80211_MFP_NO)
6664 return -EINVAL;
6665 } else {
6666 connect.mfp = NL80211_MFP_NO;
6667 }
6668
b23aa676
SO		 6669 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6670 connect.channel =
6671 ieee80211_get_channel(wiphy,
6672 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6673 if (!connect.channel ||
4c476991
JB		 6674 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6675 return -EINVAL;
b23aa676
SO		 6676 }
6677
fffd0934
JB		 6678 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6679 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6680 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6681 if (IS_ERR(connkeys))
6682 return PTR_ERR(connkeys);
fffd0934
JB		 6683 }
6684
7e7c8926
BG		 6685 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6686 connect.flags |= ASSOC_REQ_DISABLE_HT;
6687
6688 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6689 memcpy(&connect.ht_capa_mask,
6690 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6691 sizeof(connect.ht_capa_mask));
6692
6693 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6694 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6695 kfree(connkeys);
7e7c8926 6696 return -EINVAL;
b4e4f47e 6697 }
7e7c8926
BG		 6698 memcpy(&connect.ht_capa,
6699 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6700 sizeof(connect.ht_capa));
6701 }
6702
ee2aca34
JB		 6703 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6704 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6705
6706 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6707 memcpy(&connect.vht_capa_mask,
6708 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6709 sizeof(connect.vht_capa_mask));
6710
6711 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6712 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6713 kfree(connkeys);
6714 return -EINVAL;
6715 }
6716 memcpy(&connect.vht_capa,
6717 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6718 sizeof(connect.vht_capa));
6719 }
6720
83739b03
JB		 6721 wdev_lock(dev->ieee80211_ptr);
6722 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6723 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 6724 if (err)
6725 kfree(connkeys);
b23aa676
SO		 6726 return err;
6727}
6728
6729static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6730{
4c476991
JB		 6731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6732 struct net_device *dev = info->user_ptr[1];
b23aa676 6733 u16 reason;
83739b03 6734 int ret;
b23aa676
SO		 6735
6736 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6737 reason = WLAN_REASON_DEAUTH_LEAVING;
6738 else
6739 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6740
6741 if (reason == 0)
6742 return -EINVAL;
6743
074ac8df 6744 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6746 return -EOPNOTSUPP;
b23aa676 6747
83739b03
JB		 6748 wdev_lock(dev->ieee80211_ptr);
6749 ret = cfg80211_disconnect(rdev, dev, reason, true);
6750 wdev_unlock(dev->ieee80211_ptr);
6751 return ret;
b23aa676
SO		 6752}
6753
463d0183
JB		 6754static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6755{
4c476991 6756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6757 struct net *net;
6758 int err;
6759 u32 pid;
6760
6761 if (!info->attrs[NL80211_ATTR_PID])
6762 return -EINVAL;
6763
6764 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6765
463d0183 6766 net = get_net_ns_by_pid(pid);
4c476991
JB		 6767 if (IS_ERR(net))
6768 return PTR_ERR(net);
463d0183
JB		 6769
6770 err = 0;
6771
6772 /* check if anything to do */
4c476991
JB		 6773 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6774 err = cfg80211_switch_netns(rdev, net);
463d0183 6775
463d0183 6776 put_net(net);
463d0183
JB		 6777 return err;
6778}
6779
67fbb16b
SO		 6780static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6781{
4c476991 6782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6783 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6784 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6785 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6786 struct cfg80211_pmksa pmksa;
6787
6788 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6789
6790 if (!info->attrs[NL80211_ATTR_MAC])
6791 return -EINVAL;
6792
6793 if (!info->attrs[NL80211_ATTR_PMKID])
6794 return -EINVAL;
6795
67fbb16b
SO		 6796 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6797 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6798
074ac8df 6799 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6800 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6801 return -EOPNOTSUPP;
67fbb16b
SO		 6802
6803 switch (info->genlhdr->cmd) {
6804 case NL80211_CMD_SET_PMKSA:
6805 rdev_ops = rdev->ops->set_pmksa;
6806 break;
6807 case NL80211_CMD_DEL_PMKSA:
6808 rdev_ops = rdev->ops->del_pmksa;
6809 break;
6810 default:
6811 WARN_ON(1);
6812 break;
6813 }
6814
4c476991
JB		 6815 if (!rdev_ops)
6816 return -EOPNOTSUPP;
67fbb16b 6817
4c476991 6818 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6819}
6820
6821static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6822{
4c476991
JB		 6823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6824 struct net_device *dev = info->user_ptr[1];
67fbb16b 6825
074ac8df 6826 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6827 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6828 return -EOPNOTSUPP;
67fbb16b 6829
4c476991
JB		 6830 if (!rdev->ops->flush_pmksa)
6831 return -EOPNOTSUPP;
67fbb16b 6832
e35e4d28 6833 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6834}
6835
109086ce
AN		 6836static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6837{
6838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6839 struct net_device *dev = info->user_ptr[1];
6840 u8 action_code, dialog_token;
6841 u16 status_code;
6842 u8 *peer;
6843
6844 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6845 !rdev->ops->tdls_mgmt)
6846 return -EOPNOTSUPP;
6847
6848 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6849 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6850 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6851 !info->attrs[NL80211_ATTR_IE] ||
6852 !info->attrs[NL80211_ATTR_MAC])
6853 return -EINVAL;
6854
6855 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6856 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6857 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6858 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6859
e35e4d28
HG		 6860 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6861 dialog_token, status_code,
6862 nla_data(info->attrs[NL80211_ATTR_IE]),
6863 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6864}
6865
6866static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6867{
6868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6869 struct net_device *dev = info->user_ptr[1];
6870 enum nl80211_tdls_operation operation;
6871 u8 *peer;
6872
6873 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6874 !rdev->ops->tdls_oper)
6875 return -EOPNOTSUPP;
6876
6877 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6878 !info->attrs[NL80211_ATTR_MAC])
6879 return -EINVAL;
6880
6881 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6882 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6883
e35e4d28 6884 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6885}
6886
9588bbd5
JM		 6887static int nl80211_remain_on_channel(struct sk_buff *skb,
6888 struct genl_info *info)
6889{
4c476991 6890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6891 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6892 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6893 struct sk_buff *msg;
6894 void *hdr;
6895 u64 cookie;
683b6d3b 6896 u32 duration;
9588bbd5
JM		 6897 int err;
6898
6899 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6900 !info->attrs[NL80211_ATTR_DURATION])
6901 return -EINVAL;
6902
6903 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6904
ebf348fc
JB		 6905 if (!rdev->ops->remain_on_channel ||
6906 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6907 return -EOPNOTSUPP;
6908
9588bbd5 6909 /*
ebf348fc
JB		 6910 * We should be on that channel for at least a minimum amount of
6911 * time (10ms) but no longer than the driver supports.
9588bbd5 6912 */
ebf348fc 6913 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6914 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6915 return -EINVAL;
6916
683b6d3b
JB		 6917 err = nl80211_parse_chandef(rdev, info, &chandef);
6918 if (err)
6919 return err;
9588bbd5
JM		 6920
6921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6922 if (!msg)
6923 return -ENOMEM;
9588bbd5 6924
15e47304 6925 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6926 NL80211_CMD_REMAIN_ON_CHANNEL);
6927
6928 if (IS_ERR(hdr)) {
6929 err = PTR_ERR(hdr);
6930 goto free_msg;
6931 }
6932
683b6d3b
JB		 6933 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6934 duration, &cookie);
9588bbd5
JM		 6935
6936 if (err)
6937 goto free_msg;
6938
9360ffd1
DM		 6939 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6940 goto nla_put_failure;
9588bbd5
JM		 6941
6942 genlmsg_end(msg, hdr);
4c476991
JB		 6943
6944 return genlmsg_reply(msg, info);
9588bbd5
JM		 6945
6946 nla_put_failure:
6947 err = -ENOBUFS;
6948 free_msg:
6949 nlmsg_free(msg);
9588bbd5
JM		 6950 return err;
6951}
6952
6953static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6954 struct genl_info *info)
6955{
4c476991 6956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6957 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6958 u64 cookie;
9588bbd5
JM		 6959
6960 if (!info->attrs[NL80211_ATTR_COOKIE])
6961 return -EINVAL;
6962
4c476991
JB		 6963 if (!rdev->ops->cancel_remain_on_channel)
6964 return -EOPNOTSUPP;
9588bbd5 6965
9588bbd5
JM		 6966 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6967
e35e4d28 6968 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6969}
6970
13ae75b1
JM		 6971static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6972 u8 *rates, u8 rates_len)
6973{
6974 u8 i;
6975 u32 mask = 0;
6976
6977 for (i = 0; i < rates_len; i++) {
6978 int rate = (rates[i] & 0x7f) * 5;
6979 int ridx;
6980 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6981 struct ieee80211_rate *srate =
6982 &sband->bitrates[ridx];
6983 if (rate == srate->bitrate) {
6984 mask |= 1 << ridx;
6985 break;
6986 }
6987 }
6988 if (ridx == sband->n_bitrates)
6989 return 0; /* rate not found */
6990 }
6991
6992 return mask;
6993}
6994
24db78c0
SW		 6995static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6996 u8 *rates, u8 rates_len,
6997 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6998{
6999 u8 i;
7000
7001 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7002
7003 for (i = 0; i < rates_len; i++) {
7004 int ridx, rbit;
7005
7006 ridx = rates[i] / 8;
7007 rbit = BIT(rates[i] % 8);
7008
7009 /* check validity */
910570b5 7010 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7011 return false;
7012
7013 /* check availability */
7014 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7015 mcs[ridx] |= rbit;
7016 else
7017 return false;
7018 }
7019
7020 return true;
7021}
7022
b54452b0 7023static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7024 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7025 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 7026 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7027 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7028};
7029
7030static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7031 struct genl_info *info)
7032{
7033 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7035 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7036 int rem, i;
7037 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7038 struct nlattr *tx_rates;
7039 struct ieee80211_supported_band *sband;
7040
7041 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7042 return -EINVAL;
7043
4c476991
JB		 7044 if (!rdev->ops->set_bitrate_mask)
7045 return -EOPNOTSUPP;
13ae75b1
JM		 7046
7047 memset(&mask, 0, sizeof(mask));
7048 /* Default to all rates enabled */
7049 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7050 sband = rdev->wiphy.bands[i];
7051 mask.control[i].legacy =
7052 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7053 if (sband)
7054 memcpy(mask.control[i].mcs,
7055 sband->ht_cap.mcs.rx_mask,
7056 sizeof(mask.control[i].mcs));
7057 else
7058 memset(mask.control[i].mcs, 0,
7059 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7060 }
7061
7062 /*
7063 * The nested attribute uses enum nl80211_band as the index. This maps
7064 * directly to the enum ieee80211_band values used in cfg80211.
7065 */
24db78c0 7066 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7067 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7068 {
7069 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7070 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7071 return -EINVAL;
13ae75b1 7072 sband = rdev->wiphy.bands[band];
4c476991
JB		 7073 if (sband == NULL)
7074 return -EINVAL;
13ae75b1
JM		 7075 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7076 nla_len(tx_rates), nl80211_txattr_policy);
7077 if (tb[NL80211_TXRATE_LEGACY]) {
7078 mask.control[band].legacy = rateset_to_mask(
7079 sband,
7080 nla_data(tb[NL80211_TXRATE_LEGACY]),
7081 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7082 if ((mask.control[band].legacy == 0) &&
7083 nla_len(tb[NL80211_TXRATE_LEGACY]))
7084 return -EINVAL;
24db78c0
SW		 7085 }
7086 if (tb[NL80211_TXRATE_MCS]) {
7087 if (!ht_rateset_to_mask(
7088 sband,
7089 nla_data(tb[NL80211_TXRATE_MCS]),
7090 nla_len(tb[NL80211_TXRATE_MCS]),
7091 mask.control[band].mcs))
7092 return -EINVAL;
7093 }
7094
7095 if (mask.control[band].legacy == 0) {
7096 /* don't allow empty legacy rates if HT
7097 * is not even supported. */
7098 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7099 return -EINVAL;
7100
7101 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7102 if (mask.control[band].mcs[i])
7103 break;
7104
7105 /* legacy and mcs rates may not be both empty */
7106 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7107 return -EINVAL;
13ae75b1
JM		 7108 }
7109 }
7110
e35e4d28 7111 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7112}
7113
2e161f78 7114static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7115{
4c476991 7116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7117 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7118 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7119
7120 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7121 return -EINVAL;
7122
2e161f78
JB		 7123 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7124 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7125
71bbc994
JB		 7126 switch (wdev->iftype) {
7127 case NL80211_IFTYPE_STATION:
7128 case NL80211_IFTYPE_ADHOC:
7129 case NL80211_IFTYPE_P2P_CLIENT:
7130 case NL80211_IFTYPE_AP:
7131 case NL80211_IFTYPE_AP_VLAN:
7132 case NL80211_IFTYPE_MESH_POINT:
7133 case NL80211_IFTYPE_P2P_GO:
98104fde 7134 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7135 break;
7136 default:
4c476991 7137 return -EOPNOTSUPP;
71bbc994 7138 }
026331c4
JM		 7139
7140 /* not much point in registering if we can't reply */
4c476991
JB		 7141 if (!rdev->ops->mgmt_tx)
7142 return -EOPNOTSUPP;
026331c4 7143
15e47304 7144 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7145 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7146 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7147}
7148
2e161f78 7149static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7150{
4c476991 7151 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7152 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7153 struct cfg80211_chan_def chandef;
026331c4 7154 int err;
d64d373f 7155 void *hdr = NULL;
026331c4 7156 u64 cookie;
e247bd90 7157 struct sk_buff *msg = NULL;
f7ca38df 7158 unsigned int wait = 0;
e247bd90
JB		 7159 bool offchan, no_cck, dont_wait_for_ack;
7160
7161 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7162
683b6d3b 7163 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7164 return -EINVAL;
7165
4c476991
JB		 7166 if (!rdev->ops->mgmt_tx)
7167 return -EOPNOTSUPP;
026331c4 7168
71bbc994 7169 switch (wdev->iftype) {
ea141b75
AQ		 7170 case NL80211_IFTYPE_P2P_DEVICE:
7171 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7172 return -EINVAL;
71bbc994
JB		 7173 case NL80211_IFTYPE_STATION:
7174 case NL80211_IFTYPE_ADHOC:
7175 case NL80211_IFTYPE_P2P_CLIENT:
7176 case NL80211_IFTYPE_AP:
7177 case NL80211_IFTYPE_AP_VLAN:
7178 case NL80211_IFTYPE_MESH_POINT:
7179 case NL80211_IFTYPE_P2P_GO:
7180 break;
7181 default:
4c476991 7182 return -EOPNOTSUPP;
71bbc994 7183 }
026331c4 7184
f7ca38df 7185 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7186 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7187 return -EINVAL;
7188 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7189
7190 /*
7191 * We should wait on the channel for at least a minimum amount
7192 * of time (10ms) but no longer than the driver supports.
7193 */
7194 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7195 wait > rdev->wiphy.max_remain_on_channel_duration)
7196 return -EINVAL;
7197
f7ca38df
JB		 7198 }
7199
f7ca38df
JB		 7200 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7201
7c4ef712
JB		 7202 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7203 return -EINVAL;
7204
e9f935e3
RM		 7205 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7206
ea141b75
AQ		 7207 /* get the channel if any has been specified, otherwise pass NULL to
7208 * the driver. The latter will use the current one
7209 */
7210 chandef.chan = NULL;
7211 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7212 err = nl80211_parse_chandef(rdev, info, &chandef);
7213 if (err)
7214 return err;
7215 }
7216
7217 if (!chandef.chan && offchan)
7218 return -EINVAL;
026331c4 7219
e247bd90
JB		 7220 if (!dont_wait_for_ack) {
7221 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7222 if (!msg)
7223 return -ENOMEM;
026331c4 7224
15e47304 7225 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7226 NL80211_CMD_FRAME);
026331c4 7227
e247bd90
JB		 7228 if (IS_ERR(hdr)) {
7229 err = PTR_ERR(hdr);
7230 goto free_msg;
7231 }
026331c4 7232 }
e247bd90 7233
683b6d3b 7234 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7235 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7236 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7237 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7238 if (err)
7239 goto free_msg;
7240
e247bd90 7241 if (msg) {
9360ffd1
DM		 7242 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7243 goto nla_put_failure;
026331c4 7244
e247bd90
JB		 7245 genlmsg_end(msg, hdr);
7246 return genlmsg_reply(msg, info);
7247 }
7248
7249 return 0;
026331c4
JM		 7250
7251 nla_put_failure:
7252 err = -ENOBUFS;
7253 free_msg:
7254 nlmsg_free(msg);
026331c4
JM		 7255 return err;
7256}
7257
f7ca38df
JB		 7258static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7259{
7260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7261 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7262 u64 cookie;
7263
7264 if (!info->attrs[NL80211_ATTR_COOKIE])
7265 return -EINVAL;
7266
7267 if (!rdev->ops->mgmt_tx_cancel_wait)
7268 return -EOPNOTSUPP;
7269
71bbc994
JB		 7270 switch (wdev->iftype) {
7271 case NL80211_IFTYPE_STATION:
7272 case NL80211_IFTYPE_ADHOC:
7273 case NL80211_IFTYPE_P2P_CLIENT:
7274 case NL80211_IFTYPE_AP:
7275 case NL80211_IFTYPE_AP_VLAN:
7276 case NL80211_IFTYPE_P2P_GO:
98104fde 7277 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7278 break;
7279 default:
f7ca38df 7280 return -EOPNOTSUPP;
71bbc994 7281 }
f7ca38df
JB		 7282
7283 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7284
e35e4d28 7285 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7286}
7287
ffb9eb3d
KV		 7288static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7289{
4c476991 7290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7291 struct wireless_dev *wdev;
4c476991 7292 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7293 u8 ps_state;
7294 bool state;
7295 int err;
7296
4c476991
JB		 7297 if (!info->attrs[NL80211_ATTR_PS_STATE])
7298 return -EINVAL;
ffb9eb3d
KV		 7299
7300 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7301
4c476991
JB		 7302 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7303 return -EINVAL;
ffb9eb3d
KV		 7304
7305 wdev = dev->ieee80211_ptr;
7306
4c476991
JB		 7307 if (!rdev->ops->set_power_mgmt)
7308 return -EOPNOTSUPP;
ffb9eb3d
KV		 7309
7310 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7311
7312 if (state == wdev->ps)
4c476991 7313 return 0;
ffb9eb3d 7314
e35e4d28 7315 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7316 if (!err)
7317 wdev->ps = state;
ffb9eb3d
KV		 7318 return err;
7319}
7320
7321static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7322{
4c476991 7323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7324 enum nl80211_ps_state ps_state;
7325 struct wireless_dev *wdev;
4c476991 7326 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7327 struct sk_buff *msg;
7328 void *hdr;
7329 int err;
7330
ffb9eb3d
KV		 7331 wdev = dev->ieee80211_ptr;
7332
4c476991
JB		 7333 if (!rdev->ops->set_power_mgmt)
7334 return -EOPNOTSUPP;
ffb9eb3d
KV		 7335
7336 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7337 if (!msg)
7338 return -ENOMEM;
ffb9eb3d 7339
15e47304 7340 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7341 NL80211_CMD_GET_POWER_SAVE);
7342 if (!hdr) {
4c476991 7343 err = -ENOBUFS;
ffb9eb3d
KV		 7344 goto free_msg;
7345 }
7346
7347 if (wdev->ps)
7348 ps_state = NL80211_PS_ENABLED;
7349 else
7350 ps_state = NL80211_PS_DISABLED;
7351
9360ffd1
DM		 7352 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7353 goto nla_put_failure;
ffb9eb3d
KV		 7354
7355 genlmsg_end(msg, hdr);
4c476991 7356 return genlmsg_reply(msg, info);
ffb9eb3d 7357
4c476991 7358 nla_put_failure:
ffb9eb3d 7359 err = -ENOBUFS;
4c476991 7360 free_msg:
ffb9eb3d 7361 nlmsg_free(msg);
ffb9eb3d
KV		 7362 return err;
7363}
7364
d6dc1a38
JO		 7365static struct nla_policy
7366nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7367 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7368 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7369 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7370 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7371 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7372 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7373};
7374
84f10708 7375static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7376 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7377{
7378 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7379 struct wireless_dev *wdev;
7380 struct net_device *dev = info->user_ptr[1];
7381
d9d8b019 7382 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7383 return -EINVAL;
7384
7385 wdev = dev->ieee80211_ptr;
7386
7387 if (!rdev->ops->set_cqm_txe_config)
7388 return -EOPNOTSUPP;
7389
7390 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7391 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7392 return -EOPNOTSUPP;
7393
e35e4d28 7394 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7395}
7396
d6dc1a38
JO		 7397static int nl80211_set_cqm_rssi(struct genl_info *info,
7398 s32 threshold, u32 hysteresis)
7399{
4c476991 7400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7401 struct wireless_dev *wdev;
4c476991 7402 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7403
7404 if (threshold > 0)
7405 return -EINVAL;
7406
d6dc1a38
JO		 7407 wdev = dev->ieee80211_ptr;
7408
4c476991
JB		 7409 if (!rdev->ops->set_cqm_rssi_config)
7410 return -EOPNOTSUPP;
d6dc1a38 7411
074ac8df 7412 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7413 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7414 return -EOPNOTSUPP;
d6dc1a38 7415
e35e4d28 7416 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7417}
7418
7419static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7420{
7421 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7422 struct nlattr *cqm;
7423 int err;
7424
7425 cqm = info->attrs[NL80211_ATTR_CQM];
7426 if (!cqm) {
7427 err = -EINVAL;
7428 goto out;
7429 }
7430
7431 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7432 nl80211_attr_cqm_policy);
7433 if (err)
7434 goto out;
7435
7436 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7437 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7438 s32 threshold;
7439 u32 hysteresis;
7440 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7441 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7442 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7443 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7444 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7445 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7446 u32 rate, pkts, intvl;
7447 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7448 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7449 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7450 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7451 } else
7452 err = -EINVAL;
7453
7454out:
7455 return err;
7456}
7457
29cbe68c
JB		 7458static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7459{
7460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7461 struct net_device *dev = info->user_ptr[1];
7462 struct mesh_config cfg;
c80d545d 7463 struct mesh_setup setup;
29cbe68c
JB		 7464 int err;
7465
7466 /* start with default */
7467 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7468 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7469
24bdd9f4 7470 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7471 /* and parse parameters if given */
24bdd9f4 7472 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7473 if (err)
7474 return err;
7475 }
7476
7477 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7478 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7479 return -EINVAL;
7480
c80d545d
JC		 7481 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7482 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7483
4bb62344
CYY		 7484 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7485 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7486 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7487 return -EINVAL;
7488
9bdbf04d
MP		 7489 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7490 setup.beacon_interval =
7491 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7492 if (setup.beacon_interval < 10 ||
7493 setup.beacon_interval > 10000)
7494 return -EINVAL;
7495 }
7496
7497 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7498 setup.dtim_period =
7499 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7500 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7501 return -EINVAL;
7502 }
7503
c80d545d
JC		 7504 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7505 /* parse additional setup parameters if given */
7506 err = nl80211_parse_mesh_setup(info, &setup);
7507 if (err)
7508 return err;
7509 }
7510
d37bb18a
TP		 7511 if (setup.user_mpm)
7512 cfg.auto_open_plinks = false;
7513
cc1d2806 7514 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7515 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7516 if (err)
7517 return err;
cc1d2806
JB		 7518 } else {
7519 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7520 setup.chandef.chan = NULL;
cc1d2806
JB		 7521 }
7522
ffb3cf30
AN		 7523 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7524 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7525 int n_rates =
7526 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7527 struct ieee80211_supported_band *sband;
7528
7529 if (!setup.chandef.chan)
7530 return -EINVAL;
7531
7532 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7533
7534 err = ieee80211_get_ratemask(sband, rates, n_rates,
7535 &setup.basic_rates);
7536 if (err)
7537 return err;
7538 }
7539
c80d545d 7540 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7541}
7542
7543static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7544{
7545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7546 struct net_device *dev = info->user_ptr[1];
7547
7548 return cfg80211_leave_mesh(rdev, dev);
7549}
7550
dfb89c56 7551#ifdef CONFIG_PM
bb92d199
AK		 7552static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7553 struct cfg80211_registered_device *rdev)
7554{
6abb9cb9 7555 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7556 struct nlattr *nl_pats, *nl_pat;
7557 int i, pat_len;
7558
6abb9cb9 7559 if (!wowlan->n_patterns)
bb92d199
AK		 7560 return 0;
7561
7562 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7563 if (!nl_pats)
7564 return -ENOBUFS;
7565
6abb9cb9 7566 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7567 nl_pat = nla_nest_start(msg, i + 1);
7568 if (!nl_pat)
7569 return -ENOBUFS;
6abb9cb9 7570 pat_len = wowlan->patterns[i].pattern_len;
bb92d199
AK		 7571 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7572 DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7573 wowlan->patterns[i].mask) ||
bb92d199 7574 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6abb9cb9 7575 pat_len, wowlan->patterns[i].pattern) ||
bb92d199 7576 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
6abb9cb9 7577 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7578 return -ENOBUFS;
7579 nla_nest_end(msg, nl_pat);
7580 }
7581 nla_nest_end(msg, nl_pats);
7582
7583 return 0;
7584}
7585
2a0e047e
JB		 7586static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7587 struct cfg80211_wowlan_tcp *tcp)
7588{
7589 struct nlattr *nl_tcp;
7590
7591 if (!tcp)
7592 return 0;
7593
7594 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7595 if (!nl_tcp)
7596 return -ENOBUFS;
7597
7598 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7599 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7600 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7601 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7602 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7603 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7604 tcp->payload_len, tcp->payload) ||
7605 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7606 tcp->data_interval) ||
7607 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7608 tcp->wake_len, tcp->wake_data) ||
7609 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7610 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7611 return -ENOBUFS;
7612
7613 if (tcp->payload_seq.len &&
7614 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7615 sizeof(tcp->payload_seq), &tcp->payload_seq))
7616 return -ENOBUFS;
7617
7618 if (tcp->payload_tok.len &&
7619 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7620 sizeof(tcp->payload_tok) + tcp->tokens_size,
7621 &tcp->payload_tok))
7622 return -ENOBUFS;
7623
e248ad30
JB		 7624 nla_nest_end(msg, nl_tcp);
7625
2a0e047e
JB		 7626 return 0;
7627}
7628
ff1b6e69
JB		 7629static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7630{
7631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7632 struct sk_buff *msg;
7633 void *hdr;
2a0e047e 7634 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7635
964dc9e2 7636 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 7637 return -EOPNOTSUPP;
7638
6abb9cb9 7639 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7640 /* adjust size to have room for all the data */
6abb9cb9
JB		 7641 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7642 rdev->wiphy.wowlan_config->tcp->payload_len +
7643 rdev->wiphy.wowlan_config->tcp->wake_len +
7644 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7645 }
7646
7647 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7648 if (!msg)
7649 return -ENOMEM;
7650
15e47304 7651 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7652 NL80211_CMD_GET_WOWLAN);
7653 if (!hdr)
7654 goto nla_put_failure;
7655
6abb9cb9 7656 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7657 struct nlattr *nl_wowlan;
7658
7659 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7660 if (!nl_wowlan)
7661 goto nla_put_failure;
7662
6abb9cb9 7663 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7664 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7665 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7666 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7667 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7668 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7669 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7670 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7671 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7672 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7673 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7674 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7675 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7676 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7677 goto nla_put_failure;
2a0e047e 7678
bb92d199
AK		 7679 if (nl80211_send_wowlan_patterns(msg, rdev))
7680 goto nla_put_failure;
2a0e047e 7681
6abb9cb9
JB		 7682 if (nl80211_send_wowlan_tcp(msg,
7683 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7684 goto nla_put_failure;
7685
ff1b6e69
JB		 7686 nla_nest_end(msg, nl_wowlan);
7687 }
7688
7689 genlmsg_end(msg, hdr);
7690 return genlmsg_reply(msg, info);
7691
7692nla_put_failure:
7693 nlmsg_free(msg);
7694 return -ENOBUFS;
7695}
7696
2a0e047e
JB		 7697static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7698 struct nlattr *attr,
7699 struct cfg80211_wowlan *trig)
7700{
7701 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7702 struct cfg80211_wowlan_tcp *cfg;
7703 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7704 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7705 u32 size;
7706 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7707 int err, port;
7708
964dc9e2 7709 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 7710 return -EINVAL;
7711
7712 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7713 nla_data(attr), nla_len(attr),
7714 nl80211_wowlan_tcp_policy);
7715 if (err)
7716 return err;
7717
7718 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7719 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7720 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7721 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7722 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7723 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7724 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7725 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7726 return -EINVAL;
7727
7728 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 7729 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 7730 return -EINVAL;
7731
7732 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 7733 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 7734 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7735 return -EINVAL;
7736
7737 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 7738 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 7739 return -EINVAL;
7740
7741 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7742 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7743 return -EINVAL;
7744
7745 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7746 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7747
7748 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7749 tokens_size = tokln - sizeof(*tok);
7750
7751 if (!tok->len || tokens_size % tok->len)
7752 return -EINVAL;
964dc9e2 7753 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 7754 return -EINVAL;
964dc9e2 7755 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 7756 return -EINVAL;
964dc9e2 7757 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 7758 return -EINVAL;
964dc9e2 7759 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 7760 return -EINVAL;
7761 if (tok->offset + tok->len > data_size)
7762 return -EINVAL;
7763 }
7764
7765 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7766 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 7767 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 7768 return -EINVAL;
7769 if (seq->len == 0 || seq->len > 4)
7770 return -EINVAL;
7771 if (seq->len + seq->offset > data_size)
7772 return -EINVAL;
7773 }
7774
7775 size = sizeof(*cfg);
7776 size += data_size;
7777 size += wake_size + wake_mask_size;
7778 size += tokens_size;
7779
7780 cfg = kzalloc(size, GFP_KERNEL);
7781 if (!cfg)
7782 return -ENOMEM;
7783 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7784 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7785 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7786 ETH_ALEN);
7787 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7788 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7789 else
7790 port = 0;
7791#ifdef CONFIG_INET
7792 /* allocate a socket and port for it and use it */
7793 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7794 IPPROTO_TCP, &cfg->sock, 1);
7795 if (err) {
7796 kfree(cfg);
7797 return err;
7798 }
7799 if (inet_csk_get_port(cfg->sock->sk, port)) {
7800 sock_release(cfg->sock);
7801 kfree(cfg);
7802 return -EADDRINUSE;
7803 }
7804 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7805#else
7806 if (!port) {
7807 kfree(cfg);
7808 return -EINVAL;
7809 }
7810 cfg->src_port = port;
7811#endif
7812
7813 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7814 cfg->payload_len = data_size;
7815 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7816 memcpy((void *)cfg->payload,
7817 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7818 data_size);
7819 if (seq)
7820 cfg->payload_seq = *seq;
7821 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7822 cfg->wake_len = wake_size;
7823 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7824 memcpy((void *)cfg->wake_data,
7825 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7826 wake_size);
7827 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7828 data_size + wake_size;
7829 memcpy((void *)cfg->wake_mask,
7830 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7831 wake_mask_size);
7832 if (tok) {
7833 cfg->tokens_size = tokens_size;
7834 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7835 }
7836
7837 trig->tcp = cfg;
7838
7839 return 0;
7840}
7841
ff1b6e69
JB		 7842static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7843{
7844 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7845 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7846 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7847 struct cfg80211_wowlan *ntrig;
964dc9e2 7848 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 7849 int err, i;
6abb9cb9 7850 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 7851
964dc9e2 7852 if (!wowlan)
ff1b6e69
JB		 7853 return -EOPNOTSUPP;
7854
ae33bd81
JB		 7855 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7856 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7857 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 7858 goto set_wakeup;
7859 }
ff1b6e69
JB		 7860
7861 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7862 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7863 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7864 nl80211_wowlan_policy);
7865 if (err)
7866 return err;
7867
7868 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7869 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7870 return -EINVAL;
7871 new_triggers.any = true;
7872 }
7873
7874 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7875 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7876 return -EINVAL;
7877 new_triggers.disconnect = true;
7878 }
7879
7880 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7881 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7882 return -EINVAL;
7883 new_triggers.magic_pkt = true;
7884 }
7885
77dbbb13
JB		 7886 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7887 return -EINVAL;
7888
7889 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7890 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7891 return -EINVAL;
7892 new_triggers.gtk_rekey_failure = true;
7893 }
7894
7895 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7896 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7897 return -EINVAL;
7898 new_triggers.eap_identity_req = true;
7899 }
7900
7901 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7902 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7903 return -EINVAL;
7904 new_triggers.four_way_handshake = true;
7905 }
7906
7907 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7908 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7909 return -EINVAL;
7910 new_triggers.rfkill_release = true;
7911 }
7912
ff1b6e69
JB		 7913 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7914 struct nlattr *pat;
7915 int n_patterns = 0;
bb92d199 7916 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7917 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7918
7919 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7920 rem)
7921 n_patterns++;
7922 if (n_patterns > wowlan->n_patterns)
7923 return -EINVAL;
7924
7925 new_triggers.patterns = kcalloc(n_patterns,
7926 sizeof(new_triggers.patterns[0]),
7927 GFP_KERNEL);
7928 if (!new_triggers.patterns)
7929 return -ENOMEM;
7930
7931 new_triggers.n_patterns = n_patterns;
7932 i = 0;
7933
7934 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7935 rem) {
7936 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7937 nla_data(pat), nla_len(pat), NULL);
7938 err = -EINVAL;
7939 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7940 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7941 goto error;
7942 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7943 mask_len = DIV_ROUND_UP(pat_len, 8);
7944 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7945 mask_len)
7946 goto error;
7947 if (pat_len > wowlan->pattern_max_len ||
7948 pat_len < wowlan->pattern_min_len)
7949 goto error;
7950
bb92d199
AK		 7951 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7952 pkt_offset = 0;
7953 else
7954 pkt_offset = nla_get_u32(
7955 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7956 if (pkt_offset > wowlan->max_pkt_offset)
7957 goto error;
7958 new_triggers.patterns[i].pkt_offset = pkt_offset;
7959
ff1b6e69
JB		 7960 new_triggers.patterns[i].mask =
7961 kmalloc(mask_len + pat_len, GFP_KERNEL);
7962 if (!new_triggers.patterns[i].mask) {
7963 err = -ENOMEM;
7964 goto error;
7965 }
7966 new_triggers.patterns[i].pattern =
7967 new_triggers.patterns[i].mask + mask_len;
7968 memcpy(new_triggers.patterns[i].mask,
7969 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7970 mask_len);
7971 new_triggers.patterns[i].pattern_len = pat_len;
7972 memcpy(new_triggers.patterns[i].pattern,
7973 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7974 pat_len);
7975 i++;
7976 }
7977 }
7978
2a0e047e
JB		 7979 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7980 err = nl80211_parse_wowlan_tcp(
7981 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7982 &new_triggers);
7983 if (err)
7984 goto error;
7985 }
7986
ae33bd81
JB		 7987 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7988 if (!ntrig) {
7989 err = -ENOMEM;
7990 goto error;
ff1b6e69 7991 }
ae33bd81 7992 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7993 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 7994
ae33bd81 7995 set_wakeup:
6abb9cb9
JB		 7996 if (rdev->ops->set_wakeup &&
7997 prev_enabled != !!rdev->wiphy.wowlan_config)
7998 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 7999
ff1b6e69
JB		 8000 return 0;
8001 error:
8002 for (i = 0; i < new_triggers.n_patterns; i++)
8003 kfree(new_triggers.patterns[i].mask);
8004 kfree(new_triggers.patterns);
2a0e047e
JB		 8005 if (new_triggers.tcp && new_triggers.tcp->sock)
8006 sock_release(new_triggers.tcp->sock);
8007 kfree(new_triggers.tcp);
ff1b6e69
JB		 8008 return err;
8009}
dfb89c56 8010#endif
ff1b6e69 8011
e5497d76
JB		 8012static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8013{
8014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8015 struct net_device *dev = info->user_ptr[1];
8016 struct wireless_dev *wdev = dev->ieee80211_ptr;
8017 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8018 struct cfg80211_gtk_rekey_data rekey_data;
8019 int err;
8020
8021 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8022 return -EINVAL;
8023
8024 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8025 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8026 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8027 nl80211_rekey_policy);
8028 if (err)
8029 return err;
8030
8031 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8032 return -ERANGE;
8033 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8034 return -ERANGE;
8035 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8036 return -ERANGE;
8037
8038 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8039 NL80211_KEK_LEN);
8040 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8041 NL80211_KCK_LEN);
8042 memcpy(rekey_data.replay_ctr,
8043 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8044 NL80211_REPLAY_CTR_LEN);
8045
8046 wdev_lock(wdev);
8047 if (!wdev->current_bss) {
8048 err = -ENOTCONN;
8049 goto out;
8050 }
8051
8052 if (!rdev->ops->set_rekey_data) {
8053 err = -EOPNOTSUPP;
8054 goto out;
8055 }
8056
e35e4d28 8057 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8058 out:
8059 wdev_unlock(wdev);
8060 return err;
8061}
8062
28946da7
JB		 8063static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8064 struct genl_info *info)
8065{
8066 struct net_device *dev = info->user_ptr[1];
8067 struct wireless_dev *wdev = dev->ieee80211_ptr;
8068
8069 if (wdev->iftype != NL80211_IFTYPE_AP &&
8070 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8071 return -EINVAL;
8072
15e47304 8073 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8074 return -EBUSY;
8075
15e47304 8076 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8077 return 0;
8078}
8079
7f6cf311
JB		 8080static int nl80211_probe_client(struct sk_buff *skb,
8081 struct genl_info *info)
8082{
8083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8084 struct net_device *dev = info->user_ptr[1];
8085 struct wireless_dev *wdev = dev->ieee80211_ptr;
8086 struct sk_buff *msg;
8087 void *hdr;
8088 const u8 *addr;
8089 u64 cookie;
8090 int err;
8091
8092 if (wdev->iftype != NL80211_IFTYPE_AP &&
8093 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8094 return -EOPNOTSUPP;
8095
8096 if (!info->attrs[NL80211_ATTR_MAC])
8097 return -EINVAL;
8098
8099 if (!rdev->ops->probe_client)
8100 return -EOPNOTSUPP;
8101
8102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8103 if (!msg)
8104 return -ENOMEM;
8105
15e47304 8106 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8107 NL80211_CMD_PROBE_CLIENT);
8108
8109 if (IS_ERR(hdr)) {
8110 err = PTR_ERR(hdr);
8111 goto free_msg;
8112 }
8113
8114 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8115
e35e4d28 8116 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8117 if (err)
8118 goto free_msg;
8119
9360ffd1
DM		 8120 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8121 goto nla_put_failure;
7f6cf311
JB		 8122
8123 genlmsg_end(msg, hdr);
8124
8125 return genlmsg_reply(msg, info);
8126
8127 nla_put_failure:
8128 err = -ENOBUFS;
8129 free_msg:
8130 nlmsg_free(msg);
8131 return err;
8132}
8133
5e760230
JB		 8134static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8135{
8136 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8137 struct cfg80211_beacon_registration *reg, *nreg;
8138 int rv;
5e760230
JB		 8139
8140 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8141 return -EOPNOTSUPP;
8142
37c73b5f
BG		 8143 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8144 if (!nreg)
8145 return -ENOMEM;
8146
8147 /* First, check if already registered. */
8148 spin_lock_bh(&rdev->beacon_registrations_lock);
8149 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8150 if (reg->nlportid == info->snd_portid) {
8151 rv = -EALREADY;
8152 goto out_err;
8153 }
8154 }
8155 /* Add it to the list */
8156 nreg->nlportid = info->snd_portid;
8157 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8158
37c73b5f 8159 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8160
8161 return 0;
37c73b5f
BG		 8162out_err:
8163 spin_unlock_bh(&rdev->beacon_registrations_lock);
8164 kfree(nreg);
8165 return rv;
5e760230
JB		 8166}
8167
98104fde
JB		 8168static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8169{
8170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8171 struct wireless_dev *wdev = info->user_ptr[1];
8172 int err;
8173
8174 if (!rdev->ops->start_p2p_device)
8175 return -EOPNOTSUPP;
8176
8177 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8178 return -EOPNOTSUPP;
8179
8180 if (wdev->p2p_started)
8181 return 0;
8182
98104fde 8183 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8184 if (err)
8185 return err;
8186
eeb126e9 8187 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8188 if (err)
8189 return err;
8190
8191 wdev->p2p_started = true;
98104fde 8192 rdev->opencount++;
98104fde
JB		 8193
8194 return 0;
8195}
8196
8197static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8198{
8199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8200 struct wireless_dev *wdev = info->user_ptr[1];
8201
8202 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8203 return -EOPNOTSUPP;
8204
8205 if (!rdev->ops->stop_p2p_device)
8206 return -EOPNOTSUPP;
8207
f9f47529 8208 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8209
8210 return 0;
8211}
8212
3713b4e3
JB		 8213static int nl80211_get_protocol_features(struct sk_buff *skb,
8214 struct genl_info *info)
8215{
8216 void *hdr;
8217 struct sk_buff *msg;
8218
8219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8220 if (!msg)
8221 return -ENOMEM;
8222
8223 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8224 NL80211_CMD_GET_PROTOCOL_FEATURES);
8225 if (!hdr)
8226 goto nla_put_failure;
8227
8228 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8229 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8230 goto nla_put_failure;
8231
8232 genlmsg_end(msg, hdr);
8233 return genlmsg_reply(msg, info);
8234
8235 nla_put_failure:
8236 kfree_skb(msg);
8237 return -ENOBUFS;
8238}
8239
355199e0
JM		 8240static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8241{
8242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8243 struct cfg80211_update_ft_ies_params ft_params;
8244 struct net_device *dev = info->user_ptr[1];
8245
8246 if (!rdev->ops->update_ft_ies)
8247 return -EOPNOTSUPP;
8248
8249 if (!info->attrs[NL80211_ATTR_MDID] ||
8250 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8251 return -EINVAL;
8252
8253 memset(&ft_params, 0, sizeof(ft_params));
8254 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8255 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8256 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8257
8258 return rdev_update_ft_ies(rdev, dev, &ft_params);
8259}
8260
5de17984
AS		 8261static int nl80211_crit_protocol_start(struct sk_buff *skb,
8262 struct genl_info *info)
8263{
8264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8265 struct wireless_dev *wdev = info->user_ptr[1];
8266 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8267 u16 duration;
8268 int ret;
8269
8270 if (!rdev->ops->crit_proto_start)
8271 return -EOPNOTSUPP;
8272
8273 if (WARN_ON(!rdev->ops->crit_proto_stop))
8274 return -EINVAL;
8275
8276 if (rdev->crit_proto_nlportid)
8277 return -EBUSY;
8278
8279 /* determine protocol if provided */
8280 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8281 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8282
8283 if (proto >= NUM_NL80211_CRIT_PROTO)
8284 return -EINVAL;
8285
8286 /* timeout must be provided */
8287 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8288 return -EINVAL;
8289
8290 duration =
8291 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8292
8293 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8294 return -ERANGE;
8295
8296 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8297 if (!ret)
8298 rdev->crit_proto_nlportid = info->snd_portid;
8299
8300 return ret;
8301}
8302
8303static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8304 struct genl_info *info)
8305{
8306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8307 struct wireless_dev *wdev = info->user_ptr[1];
8308
8309 if (!rdev->ops->crit_proto_stop)
8310 return -EOPNOTSUPP;
8311
8312 if (rdev->crit_proto_nlportid) {
8313 rdev->crit_proto_nlportid = 0;
8314 rdev_crit_proto_stop(rdev, wdev);
8315 }
8316 return 0;
8317}
8318
4c476991
JB		 8319#define NL80211_FLAG_NEED_WIPHY 0x01
8320#define NL80211_FLAG_NEED_NETDEV 0x02
8321#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8322#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8323#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8324 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8325#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8326/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8327#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8328 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8329
8330static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8331 struct genl_info *info)
8332{
8333 struct cfg80211_registered_device *rdev;
89a54e48 8334 struct wireless_dev *wdev;
4c476991 8335 struct net_device *dev;
4c476991
JB		 8336 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8337
8338 if (rtnl)
8339 rtnl_lock();
8340
8341 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8342 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8343 if (IS_ERR(rdev)) {
8344 if (rtnl)
8345 rtnl_unlock();
8346 return PTR_ERR(rdev);
8347 }
8348 info->user_ptr[0] = rdev;
1bf614ef
JB		 8349 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8350 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8351 ASSERT_RTNL();
8352
89a54e48
JB		 8353 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8354 info->attrs);
8355 if (IS_ERR(wdev)) {
4c476991
JB		 8356 if (rtnl)
8357 rtnl_unlock();
89a54e48 8358 return PTR_ERR(wdev);
4c476991 8359 }
89a54e48 8360
89a54e48
JB		 8361 dev = wdev->netdev;
8362 rdev = wiphy_to_dev(wdev->wiphy);
8363
1bf614ef
JB		 8364 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8365 if (!dev) {
1bf614ef
JB		 8366 if (rtnl)
8367 rtnl_unlock();
8368 return -EINVAL;
8369 }
8370
8371 info->user_ptr[1] = dev;
8372 } else {
8373 info->user_ptr[1] = wdev;
41265714 8374 }
1bf614ef
JB		 8375
8376 if (dev) {
8377 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8378 !netif_running(dev)) {
1bf614ef
JB		 8379 if (rtnl)
8380 rtnl_unlock();
8381 return -ENETDOWN;
8382 }
8383
8384 dev_hold(dev);
98104fde
JB		 8385 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8386 if (!wdev->p2p_started) {
98104fde
JB		 8387 if (rtnl)
8388 rtnl_unlock();
8389 return -ENETDOWN;
8390 }
41265714 8391 }
89a54e48 8392
4c476991 8393 info->user_ptr[0] = rdev;
4c476991
JB		 8394 }
8395
8396 return 0;
8397}
8398
8399static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8400 struct genl_info *info)
8401{
1bf614ef
JB		 8402 if (info->user_ptr[1]) {
8403 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8404 struct wireless_dev *wdev = info->user_ptr[1];
8405
8406 if (wdev->netdev)
8407 dev_put(wdev->netdev);
8408 } else {
8409 dev_put(info->user_ptr[1]);
8410 }
8411 }
4c476991
JB		 8412 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8413 rtnl_unlock();
8414}
8415
55682965
JB		 8416static struct genl_ops nl80211_ops[] = {
8417 {
8418 .cmd = NL80211_CMD_GET_WIPHY,
8419 .doit = nl80211_get_wiphy,
8420 .dumpit = nl80211_dump_wiphy,
8421 .policy = nl80211_policy,
8422 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8423 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8424 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8425 },
8426 {
8427 .cmd = NL80211_CMD_SET_WIPHY,
8428 .doit = nl80211_set_wiphy,
8429 .policy = nl80211_policy,
8430 .flags = GENL_ADMIN_PERM,
4c476991 8431 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8432 },
8433 {
8434 .cmd = NL80211_CMD_GET_INTERFACE,
8435 .doit = nl80211_get_interface,
8436 .dumpit = nl80211_dump_interface,
8437 .policy = nl80211_policy,
8438 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8439 .internal_flags = NL80211_FLAG_NEED_WDEV |
8440 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8441 },
8442 {
8443 .cmd = NL80211_CMD_SET_INTERFACE,
8444 .doit = nl80211_set_interface,
8445 .policy = nl80211_policy,
8446 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8447 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8448 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8449 },
8450 {
8451 .cmd = NL80211_CMD_NEW_INTERFACE,
8452 .doit = nl80211_new_interface,
8453 .policy = nl80211_policy,
8454 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8455 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8456 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8457 },
8458 {
8459 .cmd = NL80211_CMD_DEL_INTERFACE,
8460 .doit = nl80211_del_interface,
8461 .policy = nl80211_policy,
41ade00f 8462 .flags = GENL_ADMIN_PERM,
84efbb84 8463 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8464 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8465 },
8466 {
8467 .cmd = NL80211_CMD_GET_KEY,
8468 .doit = nl80211_get_key,
8469 .policy = nl80211_policy,
8470 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8472 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8473 },
8474 {
8475 .cmd = NL80211_CMD_SET_KEY,
8476 .doit = nl80211_set_key,
8477 .policy = nl80211_policy,
8478 .flags = GENL_ADMIN_PERM,
41265714 8479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8480 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8481 },
8482 {
8483 .cmd = NL80211_CMD_NEW_KEY,
8484 .doit = nl80211_new_key,
8485 .policy = nl80211_policy,
8486 .flags = GENL_ADMIN_PERM,
41265714 8487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8488 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8489 },
8490 {
8491 .cmd = NL80211_CMD_DEL_KEY,
8492 .doit = nl80211_del_key,
8493 .policy = nl80211_policy,
55682965 8494 .flags = GENL_ADMIN_PERM,
41265714 8495 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8496 NL80211_FLAG_NEED_RTNL,
55682965 8497 },
ed1b6cc7
JB		 8498 {
8499 .cmd = NL80211_CMD_SET_BEACON,
8500 .policy = nl80211_policy,
8501 .flags = GENL_ADMIN_PERM,
8860020e 8502 .doit = nl80211_set_beacon,
2b5f8b0b 8503 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8504 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8505 },
8506 {
8860020e 8507 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8508 .policy = nl80211_policy,
8509 .flags = GENL_ADMIN_PERM,
8860020e 8510 .doit = nl80211_start_ap,
2b5f8b0b 8511 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8512 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8513 },
8514 {
8860020e 8515 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8516 .policy = nl80211_policy,
8517 .flags = GENL_ADMIN_PERM,
8860020e 8518 .doit = nl80211_stop_ap,
2b5f8b0b 8519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8520 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8521 },
5727ef1b
JB		 8522 {
8523 .cmd = NL80211_CMD_GET_STATION,
8524 .doit = nl80211_get_station,
2ec600d6 8525 .dumpit = nl80211_dump_station,
5727ef1b 8526 .policy = nl80211_policy,
4c476991
JB		 8527 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8528 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8529 },
8530 {
8531 .cmd = NL80211_CMD_SET_STATION,
8532 .doit = nl80211_set_station,
8533 .policy = nl80211_policy,
8534 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8536 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8537 },
8538 {
8539 .cmd = NL80211_CMD_NEW_STATION,
8540 .doit = nl80211_new_station,
8541 .policy = nl80211_policy,
8542 .flags = GENL_ADMIN_PERM,
41265714 8543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8544 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8545 },
8546 {
8547 .cmd = NL80211_CMD_DEL_STATION,
8548 .doit = nl80211_del_station,
8549 .policy = nl80211_policy,
2ec600d6 8550 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8551 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8552 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8553 },
8554 {
8555 .cmd = NL80211_CMD_GET_MPATH,
8556 .doit = nl80211_get_mpath,
8557 .dumpit = nl80211_dump_mpath,
8558 .policy = nl80211_policy,
8559 .flags = GENL_ADMIN_PERM,
41265714 8560 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8561 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8562 },
8563 {
8564 .cmd = NL80211_CMD_SET_MPATH,
8565 .doit = nl80211_set_mpath,
8566 .policy = nl80211_policy,
8567 .flags = GENL_ADMIN_PERM,
41265714 8568 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8569 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8570 },
8571 {
8572 .cmd = NL80211_CMD_NEW_MPATH,
8573 .doit = nl80211_new_mpath,
8574 .policy = nl80211_policy,
8575 .flags = GENL_ADMIN_PERM,
41265714 8576 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8577 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8578 },
8579 {
8580 .cmd = NL80211_CMD_DEL_MPATH,
8581 .doit = nl80211_del_mpath,
8582 .policy = nl80211_policy,
9f1ba906 8583 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8585 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8586 },
8587 {
8588 .cmd = NL80211_CMD_SET_BSS,
8589 .doit = nl80211_set_bss,
8590 .policy = nl80211_policy,
b2e1b302 8591 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8593 NL80211_FLAG_NEED_RTNL,
b2e1b302 8594 },
f130347c
LR		 8595 {
8596 .cmd = NL80211_CMD_GET_REG,
8597 .doit = nl80211_get_reg,
8598 .policy = nl80211_policy,
5fe231e8 8599 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 8600 /* can be retrieved by unprivileged users */
8601 },
b2e1b302
LR		 8602 {
8603 .cmd = NL80211_CMD_SET_REG,
8604 .doit = nl80211_set_reg,
8605 .policy = nl80211_policy,
8606 .flags = GENL_ADMIN_PERM,
5fe231e8 8607 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 8608 },
8609 {
8610 .cmd = NL80211_CMD_REQ_SET_REG,
8611 .doit = nl80211_req_set_reg,
8612 .policy = nl80211_policy,
93da9cc1 8613 .flags = GENL_ADMIN_PERM,
8614 },
8615 {
24bdd9f4
JC		 8616 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8617 .doit = nl80211_get_mesh_config,
93da9cc1 8618 .policy = nl80211_policy,
8619 /* can be retrieved by unprivileged users */
2b5f8b0b 8620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8621 NL80211_FLAG_NEED_RTNL,
93da9cc1 8622 },
8623 {
24bdd9f4
JC		 8624 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8625 .doit = nl80211_update_mesh_config,
93da9cc1 8626 .policy = nl80211_policy,
9aed3cc1 8627 .flags = GENL_ADMIN_PERM,
29cbe68c 8628 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8629 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8630 },
2a519311
JB		 8631 {
8632 .cmd = NL80211_CMD_TRIGGER_SCAN,
8633 .doit = nl80211_trigger_scan,
8634 .policy = nl80211_policy,
8635 .flags = GENL_ADMIN_PERM,
fd014284 8636 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8637 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8638 },
8639 {
8640 .cmd = NL80211_CMD_GET_SCAN,
8641 .policy = nl80211_policy,
8642 .dumpit = nl80211_dump_scan,
8643 },
807f8a8c
LC		 8644 {
8645 .cmd = NL80211_CMD_START_SCHED_SCAN,
8646 .doit = nl80211_start_sched_scan,
8647 .policy = nl80211_policy,
8648 .flags = GENL_ADMIN_PERM,
8649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8650 NL80211_FLAG_NEED_RTNL,
8651 },
8652 {
8653 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8654 .doit = nl80211_stop_sched_scan,
8655 .policy = nl80211_policy,
8656 .flags = GENL_ADMIN_PERM,
8657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8658 NL80211_FLAG_NEED_RTNL,
8659 },
636a5d36
JM		 8660 {
8661 .cmd = NL80211_CMD_AUTHENTICATE,
8662 .doit = nl80211_authenticate,
8663 .policy = nl80211_policy,
8664 .flags = GENL_ADMIN_PERM,
41265714 8665 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8666 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8667 },
8668 {
8669 .cmd = NL80211_CMD_ASSOCIATE,
8670 .doit = nl80211_associate,
8671 .policy = nl80211_policy,
8672 .flags = GENL_ADMIN_PERM,
41265714 8673 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8674 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8675 },
8676 {
8677 .cmd = NL80211_CMD_DEAUTHENTICATE,
8678 .doit = nl80211_deauthenticate,
8679 .policy = nl80211_policy,
8680 .flags = GENL_ADMIN_PERM,
41265714 8681 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8682 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8683 },
8684 {
8685 .cmd = NL80211_CMD_DISASSOCIATE,
8686 .doit = nl80211_disassociate,
8687 .policy = nl80211_policy,
8688 .flags = GENL_ADMIN_PERM,
41265714 8689 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8690 NL80211_FLAG_NEED_RTNL,
636a5d36 8691 },
04a773ad
JB		 8692 {
8693 .cmd = NL80211_CMD_JOIN_IBSS,
8694 .doit = nl80211_join_ibss,
8695 .policy = nl80211_policy,
8696 .flags = GENL_ADMIN_PERM,
41265714 8697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8698 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8699 },
8700 {
8701 .cmd = NL80211_CMD_LEAVE_IBSS,
8702 .doit = nl80211_leave_ibss,
8703 .policy = nl80211_policy,
8704 .flags = GENL_ADMIN_PERM,
41265714 8705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8706 NL80211_FLAG_NEED_RTNL,
04a773ad 8707 },
aff89a9b
JB		 8708#ifdef CONFIG_NL80211_TESTMODE
8709 {
8710 .cmd = NL80211_CMD_TESTMODE,
8711 .doit = nl80211_testmode_do,
71063f0e 8712 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8713 .policy = nl80211_policy,
8714 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8715 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8716 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8717 },
8718#endif
b23aa676
SO		 8719 {
8720 .cmd = NL80211_CMD_CONNECT,
8721 .doit = nl80211_connect,
8722 .policy = nl80211_policy,
8723 .flags = GENL_ADMIN_PERM,
41265714 8724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8725 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8726 },
8727 {
8728 .cmd = NL80211_CMD_DISCONNECT,
8729 .doit = nl80211_disconnect,
8730 .policy = nl80211_policy,
8731 .flags = GENL_ADMIN_PERM,
41265714 8732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8733 NL80211_FLAG_NEED_RTNL,
b23aa676 8734 },
463d0183
JB		 8735 {
8736 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8737 .doit = nl80211_wiphy_netns,
8738 .policy = nl80211_policy,
8739 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8740 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8741 NL80211_FLAG_NEED_RTNL,
463d0183 8742 },
61fa713c
HS		 8743 {
8744 .cmd = NL80211_CMD_GET_SURVEY,
8745 .policy = nl80211_policy,
8746 .dumpit = nl80211_dump_survey,
8747 },
67fbb16b
SO		 8748 {
8749 .cmd = NL80211_CMD_SET_PMKSA,
8750 .doit = nl80211_setdel_pmksa,
8751 .policy = nl80211_policy,
8752 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8753 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8754 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8755 },
8756 {
8757 .cmd = NL80211_CMD_DEL_PMKSA,
8758 .doit = nl80211_setdel_pmksa,
8759 .policy = nl80211_policy,
8760 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8762 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8763 },
8764 {
8765 .cmd = NL80211_CMD_FLUSH_PMKSA,
8766 .doit = nl80211_flush_pmksa,
8767 .policy = nl80211_policy,
8768 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8769 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8770 NL80211_FLAG_NEED_RTNL,
67fbb16b 8771 },
9588bbd5
JM		 8772 {
8773 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8774 .doit = nl80211_remain_on_channel,
8775 .policy = nl80211_policy,
8776 .flags = GENL_ADMIN_PERM,
71bbc994 8777 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8778 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8779 },
8780 {
8781 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8782 .doit = nl80211_cancel_remain_on_channel,
8783 .policy = nl80211_policy,
8784 .flags = GENL_ADMIN_PERM,
71bbc994 8785 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8786 NL80211_FLAG_NEED_RTNL,
9588bbd5 8787 },
13ae75b1
JM		 8788 {
8789 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8790 .doit = nl80211_set_tx_bitrate_mask,
8791 .policy = nl80211_policy,
8792 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8793 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8794 NL80211_FLAG_NEED_RTNL,
13ae75b1 8795 },
026331c4 8796 {
2e161f78
JB		 8797 .cmd = NL80211_CMD_REGISTER_FRAME,
8798 .doit = nl80211_register_mgmt,
026331c4
JM		 8799 .policy = nl80211_policy,
8800 .flags = GENL_ADMIN_PERM,
71bbc994 8801 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8802 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8803 },
8804 {
2e161f78
JB		 8805 .cmd = NL80211_CMD_FRAME,
8806 .doit = nl80211_tx_mgmt,
026331c4 8807 .policy = nl80211_policy,
f7ca38df 8808 .flags = GENL_ADMIN_PERM,
71bbc994 8809 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8810 NL80211_FLAG_NEED_RTNL,
8811 },
8812 {
8813 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8814 .doit = nl80211_tx_mgmt_cancel_wait,
8815 .policy = nl80211_policy,
026331c4 8816 .flags = GENL_ADMIN_PERM,
71bbc994 8817 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8818 NL80211_FLAG_NEED_RTNL,
026331c4 8819 },
ffb9eb3d
KV		 8820 {
8821 .cmd = NL80211_CMD_SET_POWER_SAVE,
8822 .doit = nl80211_set_power_save,
8823 .policy = nl80211_policy,
8824 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8825 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8826 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8827 },
8828 {
8829 .cmd = NL80211_CMD_GET_POWER_SAVE,
8830 .doit = nl80211_get_power_save,
8831 .policy = nl80211_policy,
8832 /* can be retrieved by unprivileged users */
4c476991
JB		 8833 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8834 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8835 },
d6dc1a38
JO		 8836 {
8837 .cmd = NL80211_CMD_SET_CQM,
8838 .doit = nl80211_set_cqm,
8839 .policy = nl80211_policy,
8840 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8841 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8842 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8843 },
f444de05
JB		 8844 {
8845 .cmd = NL80211_CMD_SET_CHANNEL,
8846 .doit = nl80211_set_channel,
8847 .policy = nl80211_policy,
8848 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8849 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8850 NL80211_FLAG_NEED_RTNL,
f444de05 8851 },
e8347eba
BJ		 8852 {
8853 .cmd = NL80211_CMD_SET_WDS_PEER,
8854 .doit = nl80211_set_wds_peer,
8855 .policy = nl80211_policy,
8856 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8857 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8858 NL80211_FLAG_NEED_RTNL,
e8347eba 8859 },
29cbe68c
JB		 8860 {
8861 .cmd = NL80211_CMD_JOIN_MESH,
8862 .doit = nl80211_join_mesh,
8863 .policy = nl80211_policy,
8864 .flags = GENL_ADMIN_PERM,
8865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8866 NL80211_FLAG_NEED_RTNL,
8867 },
8868 {
8869 .cmd = NL80211_CMD_LEAVE_MESH,
8870 .doit = nl80211_leave_mesh,
8871 .policy = nl80211_policy,
8872 .flags = GENL_ADMIN_PERM,
8873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8874 NL80211_FLAG_NEED_RTNL,
8875 },
dfb89c56 8876#ifdef CONFIG_PM
ff1b6e69
JB		 8877 {
8878 .cmd = NL80211_CMD_GET_WOWLAN,
8879 .doit = nl80211_get_wowlan,
8880 .policy = nl80211_policy,
8881 /* can be retrieved by unprivileged users */
8882 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8883 NL80211_FLAG_NEED_RTNL,
8884 },
8885 {
8886 .cmd = NL80211_CMD_SET_WOWLAN,
8887 .doit = nl80211_set_wowlan,
8888 .policy = nl80211_policy,
8889 .flags = GENL_ADMIN_PERM,
8890 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8891 NL80211_FLAG_NEED_RTNL,
8892 },
dfb89c56 8893#endif
e5497d76
JB		 8894 {
8895 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8896 .doit = nl80211_set_rekey_data,
8897 .policy = nl80211_policy,
8898 .flags = GENL_ADMIN_PERM,
8899 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8900 NL80211_FLAG_NEED_RTNL,
8901 },
109086ce
AN		 8902 {
8903 .cmd = NL80211_CMD_TDLS_MGMT,
8904 .doit = nl80211_tdls_mgmt,
8905 .policy = nl80211_policy,
8906 .flags = GENL_ADMIN_PERM,
8907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8908 NL80211_FLAG_NEED_RTNL,
8909 },
8910 {
8911 .cmd = NL80211_CMD_TDLS_OPER,
8912 .doit = nl80211_tdls_oper,
8913 .policy = nl80211_policy,
8914 .flags = GENL_ADMIN_PERM,
8915 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8916 NL80211_FLAG_NEED_RTNL,
8917 },
28946da7
JB		 8918 {
8919 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8920 .doit = nl80211_register_unexpected_frame,
8921 .policy = nl80211_policy,
8922 .flags = GENL_ADMIN_PERM,
8923 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8924 NL80211_FLAG_NEED_RTNL,
8925 },
7f6cf311
JB		 8926 {
8927 .cmd = NL80211_CMD_PROBE_CLIENT,
8928 .doit = nl80211_probe_client,
8929 .policy = nl80211_policy,
8930 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8931 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8932 NL80211_FLAG_NEED_RTNL,
8933 },
5e760230
JB		 8934 {
8935 .cmd = NL80211_CMD_REGISTER_BEACONS,
8936 .doit = nl80211_register_beacons,
8937 .policy = nl80211_policy,
8938 .flags = GENL_ADMIN_PERM,
8939 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8940 NL80211_FLAG_NEED_RTNL,
8941 },
1d9d9213
SW		 8942 {
8943 .cmd = NL80211_CMD_SET_NOACK_MAP,
8944 .doit = nl80211_set_noack_map,
8945 .policy = nl80211_policy,
8946 .flags = GENL_ADMIN_PERM,
8947 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8948 NL80211_FLAG_NEED_RTNL,
8949 },
98104fde
JB		 8950 {
8951 .cmd = NL80211_CMD_START_P2P_DEVICE,
8952 .doit = nl80211_start_p2p_device,
8953 .policy = nl80211_policy,
8954 .flags = GENL_ADMIN_PERM,
8955 .internal_flags = NL80211_FLAG_NEED_WDEV |
8956 NL80211_FLAG_NEED_RTNL,
8957 },
8958 {
8959 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8960 .doit = nl80211_stop_p2p_device,
8961 .policy = nl80211_policy,
8962 .flags = GENL_ADMIN_PERM,
8963 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8964 NL80211_FLAG_NEED_RTNL,
8965 },
f4e583c8
AQ		 8966 {
8967 .cmd = NL80211_CMD_SET_MCAST_RATE,
8968 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8969 .policy = nl80211_policy,
8970 .flags = GENL_ADMIN_PERM,
8971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8972 NL80211_FLAG_NEED_RTNL,
8973 },
8974 {
8975 .cmd = NL80211_CMD_SET_MAC_ACL,
8976 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8977 .policy = nl80211_policy,
8978 .flags = GENL_ADMIN_PERM,
8979 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8980 NL80211_FLAG_NEED_RTNL,
8981 },
04f39047
SW		 8982 {
8983 .cmd = NL80211_CMD_RADAR_DETECT,
8984 .doit = nl80211_start_radar_detection,
8985 .policy = nl80211_policy,
8986 .flags = GENL_ADMIN_PERM,
8987 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8988 NL80211_FLAG_NEED_RTNL,
8989 },
3713b4e3
JB		 8990 {
8991 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8992 .doit = nl80211_get_protocol_features,
8993 .policy = nl80211_policy,
8994 },
355199e0
JM		 8995 {
8996 .cmd = NL80211_CMD_UPDATE_FT_IES,
8997 .doit = nl80211_update_ft_ies,
8998 .policy = nl80211_policy,
8999 .flags = GENL_ADMIN_PERM,
9000 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9001 NL80211_FLAG_NEED_RTNL,
9002 },
5de17984
AS		 9003 {
9004 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9005 .doit = nl80211_crit_protocol_start,
9006 .policy = nl80211_policy,
9007 .flags = GENL_ADMIN_PERM,
9008 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9009 NL80211_FLAG_NEED_RTNL,
9010 },
9011 {
9012 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9013 .doit = nl80211_crit_protocol_stop,
9014 .policy = nl80211_policy,
9015 .flags = GENL_ADMIN_PERM,
9016 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9017 NL80211_FLAG_NEED_RTNL,
9018 }
55682965 9019};
9588bbd5 9020
6039f6d2
JM		 9021static struct genl_multicast_group nl80211_mlme_mcgrp = {
9022 .name = "mlme",
9023};
55682965
JB		 9024
9025/* multicast groups */
9026static struct genl_multicast_group nl80211_config_mcgrp = {
9027 .name = "config",
9028};
2a519311
JB		 9029static struct genl_multicast_group nl80211_scan_mcgrp = {
9030 .name = "scan",
9031};
73d54c9e
LR		 9032static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9033 .name = "regulatory",
9034};
55682965
JB		 9035
9036/* notification functions */
9037
9038void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9039{
9040 struct sk_buff *msg;
9041
fd2120ca 9042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9043 if (!msg)
9044 return;
9045
3713b4e3
JB		 9046 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
9047 false, NULL, NULL, NULL) < 0) {
55682965
JB		 9048 nlmsg_free(msg);
9049 return;
9050 }
9051
463d0183
JB		 9052 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9053 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 9054}
9055
362a415d
JB		 9056static int nl80211_add_scan_req(struct sk_buff *msg,
9057 struct cfg80211_registered_device *rdev)
9058{
9059 struct cfg80211_scan_request *req = rdev->scan_req;
9060 struct nlattr *nest;
9061 int i;
9062
9063 if (WARN_ON(!req))
9064 return 0;
9065
9066 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9067 if (!nest)
9068 goto nla_put_failure;
9360ffd1
DM		 9069 for (i = 0; i < req->n_ssids; i++) {
9070 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9071 goto nla_put_failure;
9072 }
362a415d
JB		 9073 nla_nest_end(msg, nest);
9074
9075 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9076 if (!nest)
9077 goto nla_put_failure;
9360ffd1
DM		 9078 for (i = 0; i < req->n_channels; i++) {
9079 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9080 goto nla_put_failure;
9081 }
362a415d
JB		 9082 nla_nest_end(msg, nest);
9083
9360ffd1
DM		 9084 if (req->ie &&
9085 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9086 goto nla_put_failure;
362a415d 9087
ed473771
SL		 9088 if (req->flags)
9089 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9090
362a415d
JB		 9091 return 0;
9092 nla_put_failure:
9093 return -ENOBUFS;
9094}
9095
a538e2d5
JB		 9096static int nl80211_send_scan_msg(struct sk_buff *msg,
9097 struct cfg80211_registered_device *rdev,
fd014284 9098 struct wireless_dev *wdev,
15e47304 9099 u32 portid, u32 seq, int flags,
a538e2d5 9100 u32 cmd)
2a519311
JB		 9101{
9102 void *hdr;
9103
15e47304 9104 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9105 if (!hdr)
9106 return -1;
9107
9360ffd1 9108 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9109 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9110 wdev->netdev->ifindex)) ||
9111 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9112 goto nla_put_failure;
2a519311 9113
362a415d
JB		 9114 /* ignore errors and send incomplete event anyway */
9115 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9116
9117 return genlmsg_end(msg, hdr);
9118
9119 nla_put_failure:
9120 genlmsg_cancel(msg, hdr);
9121 return -EMSGSIZE;
9122}
9123
807f8a8c
LC		 9124static int
9125nl80211_send_sched_scan_msg(struct sk_buff *msg,
9126 struct cfg80211_registered_device *rdev,
9127 struct net_device *netdev,
15e47304 9128 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9129{
9130 void *hdr;
9131
15e47304 9132 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9133 if (!hdr)
9134 return -1;
9135
9360ffd1
DM		 9136 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9137 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9138 goto nla_put_failure;
807f8a8c
LC		 9139
9140 return genlmsg_end(msg, hdr);
9141
9142 nla_put_failure:
9143 genlmsg_cancel(msg, hdr);
9144 return -EMSGSIZE;
9145}
9146
a538e2d5 9147void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9148 struct wireless_dev *wdev)
a538e2d5
JB		 9149{
9150 struct sk_buff *msg;
9151
58050fce 9152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9153 if (!msg)
9154 return;
9155
fd014284 9156 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9157 NL80211_CMD_TRIGGER_SCAN) < 0) {
9158 nlmsg_free(msg);
9159 return;
9160 }
9161
463d0183
JB		 9162 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9163 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9164}
9165
2a519311 9166void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9167 struct wireless_dev *wdev)
2a519311
JB		 9168{
9169 struct sk_buff *msg;
9170
fd2120ca 9171 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9172 if (!msg)
9173 return;
9174
fd014284 9175 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9176 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9177 nlmsg_free(msg);
9178 return;
9179 }
9180
463d0183
JB		 9181 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9182 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9183}
9184
9185void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9186 struct wireless_dev *wdev)
2a519311
JB		 9187{
9188 struct sk_buff *msg;
9189
fd2120ca 9190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9191 if (!msg)
9192 return;
9193
fd014284 9194 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9195 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9196 nlmsg_free(msg);
9197 return;
9198 }
9199
463d0183
JB		 9200 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9201 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9202}
9203
807f8a8c
LC		 9204void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9205 struct net_device *netdev)
9206{
9207 struct sk_buff *msg;
9208
9209 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9210 if (!msg)
9211 return;
9212
9213 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9214 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9215 nlmsg_free(msg);
9216 return;
9217 }
9218
9219 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9220 nl80211_scan_mcgrp.id, GFP_KERNEL);
9221}
9222
9223void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9224 struct net_device *netdev, u32 cmd)
9225{
9226 struct sk_buff *msg;
9227
58050fce 9228 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9229 if (!msg)
9230 return;
9231
9232 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9233 nlmsg_free(msg);
9234 return;
9235 }
9236
9237 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9238 nl80211_scan_mcgrp.id, GFP_KERNEL);
9239}
9240
73d54c9e
LR		 9241/*
9242 * This can happen on global regulatory changes or device specific settings
9243 * based on custom world regulatory domains.
9244 */
9245void nl80211_send_reg_change_event(struct regulatory_request *request)
9246{
9247 struct sk_buff *msg;
9248 void *hdr;
9249
fd2120ca 9250 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9251 if (!msg)
9252 return;
9253
9254 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9255 if (!hdr) {
9256 nlmsg_free(msg);
9257 return;
9258 }
9259
9260 /* Userspace can always count this one always being set */
9360ffd1
DM		 9261 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9262 goto nla_put_failure;
9263
9264 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9265 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9266 NL80211_REGDOM_TYPE_WORLD))
9267 goto nla_put_failure;
9268 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9269 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9270 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9271 goto nla_put_failure;
9272 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9273 request->intersect) {
9274 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9275 NL80211_REGDOM_TYPE_INTERSECTION))
9276 goto nla_put_failure;
9277 } else {
9278 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9279 NL80211_REGDOM_TYPE_COUNTRY) ||
9280 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9281 request->alpha2))
9282 goto nla_put_failure;
9283 }
9284
f4173766 9285 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9286 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9287 goto nla_put_failure;
73d54c9e 9288
3b7b72ee 9289 genlmsg_end(msg, hdr);
73d54c9e 9290
bc43b28c 9291 rcu_read_lock();
463d0183 9292 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9293 GFP_ATOMIC);
9294 rcu_read_unlock();
73d54c9e
LR		 9295
9296 return;
9297
9298nla_put_failure:
9299 genlmsg_cancel(msg, hdr);
9300 nlmsg_free(msg);
9301}
9302
6039f6d2
JM		 9303static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9304 struct net_device *netdev,
9305 const u8 *buf, size_t len,
e6d6e342 9306 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9307{
9308 struct sk_buff *msg;
9309 void *hdr;
9310
e6d6e342 9311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9312 if (!msg)
9313 return;
9314
9315 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9316 if (!hdr) {
9317 nlmsg_free(msg);
9318 return;
9319 }
9320
9360ffd1
DM		 9321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9322 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9323 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9324 goto nla_put_failure;
6039f6d2 9325
3b7b72ee 9326 genlmsg_end(msg, hdr);
6039f6d2 9327
463d0183
JB		 9328 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9329 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9330 return;
9331
9332 nla_put_failure:
9333 genlmsg_cancel(msg, hdr);
9334 nlmsg_free(msg);
9335}
9336
9337void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9338 struct net_device *netdev, const u8 *buf,
9339 size_t len, gfp_t gfp)
6039f6d2
JM		 9340{
9341 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9342 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9343}
9344
9345void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9346 struct net_device *netdev, const u8 *buf,
e6d6e342 9347 size_t len, gfp_t gfp)
6039f6d2 9348{
e6d6e342
JB		 9349 nl80211_send_mlme_event(rdev, netdev, buf, len,
9350 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9351}
9352
53b46b84 9353void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9354 struct net_device *netdev, const u8 *buf,
9355 size_t len, gfp_t gfp)
6039f6d2
JM		 9356{
9357 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9358 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9359}
9360
53b46b84
JM		 9361void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9362 struct net_device *netdev, const u8 *buf,
e6d6e342 9363 size_t len, gfp_t gfp)
6039f6d2
JM		 9364{
9365 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9366 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9367}
9368
6ff57cf8
JB		 9369void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9370 size_t len)
cf4e594e 9371{
947add36
JB		 9372 struct wireless_dev *wdev = dev->ieee80211_ptr;
9373 struct wiphy *wiphy = wdev->wiphy;
9374 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 9375 const struct ieee80211_mgmt *mgmt = (void *)buf;
9376 u32 cmd;
947add36 9377
6ff57cf8
JB		 9378 if (WARN_ON(len < 2))
9379 return;
cf4e594e 9380
6ff57cf8
JB		 9381 if (ieee80211_is_deauth(mgmt->frame_control))
9382 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9383 else
9384 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 9385
6ff57cf8
JB		 9386 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9387 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 9388}
6ff57cf8 9389EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 9390
1b06bb40
LR		 9391static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9392 struct net_device *netdev, int cmd,
e6d6e342 9393 const u8 *addr, gfp_t gfp)
1965c853
JM		 9394{
9395 struct sk_buff *msg;
9396 void *hdr;
9397
e6d6e342 9398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9399 if (!msg)
9400 return;
9401
9402 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9403 if (!hdr) {
9404 nlmsg_free(msg);
9405 return;
9406 }
9407
9360ffd1
DM		 9408 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9409 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9410 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9411 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9412 goto nla_put_failure;
1965c853 9413
3b7b72ee 9414 genlmsg_end(msg, hdr);
1965c853 9415
463d0183
JB		 9416 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9417 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9418 return;
9419
9420 nla_put_failure:
9421 genlmsg_cancel(msg, hdr);
9422 nlmsg_free(msg);
9423}
9424
9425void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9426 struct net_device *netdev, const u8 *addr,
9427 gfp_t gfp)
1965c853
JM		 9428{
9429 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9430 addr, gfp);
1965c853
JM		 9431}
9432
9433void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9434 struct net_device *netdev, const u8 *addr,
9435 gfp_t gfp)
1965c853 9436{
e6d6e342
JB		 9437 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9438 addr, gfp);
1965c853
JM		 9439}
9440
b23aa676
SO		 9441void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9442 struct net_device *netdev, const u8 *bssid,
9443 const u8 *req_ie, size_t req_ie_len,
9444 const u8 *resp_ie, size_t resp_ie_len,
9445 u16 status, gfp_t gfp)
9446{
9447 struct sk_buff *msg;
9448 void *hdr;
9449
58050fce 9450 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9451 if (!msg)
9452 return;
9453
9454 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9455 if (!hdr) {
9456 nlmsg_free(msg);
9457 return;
9458 }
9459
9360ffd1
DM		 9460 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9461 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9462 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9463 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9464 (req_ie &&
9465 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9466 (resp_ie &&
9467 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9468 goto nla_put_failure;
b23aa676 9469
3b7b72ee 9470 genlmsg_end(msg, hdr);
b23aa676 9471
463d0183
JB		 9472 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9473 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9474 return;
9475
9476 nla_put_failure:
9477 genlmsg_cancel(msg, hdr);
9478 nlmsg_free(msg);
9479
9480}
9481
9482void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9483 struct net_device *netdev, const u8 *bssid,
9484 const u8 *req_ie, size_t req_ie_len,
9485 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9486{
9487 struct sk_buff *msg;
9488 void *hdr;
9489
58050fce 9490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9491 if (!msg)
9492 return;
9493
9494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9495 if (!hdr) {
9496 nlmsg_free(msg);
9497 return;
9498 }
9499
9360ffd1
DM		 9500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9501 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9502 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9503 (req_ie &&
9504 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9505 (resp_ie &&
9506 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9507 goto nla_put_failure;
b23aa676 9508
3b7b72ee 9509 genlmsg_end(msg, hdr);
b23aa676 9510
463d0183
JB		 9511 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9512 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9513 return;
9514
9515 nla_put_failure:
9516 genlmsg_cancel(msg, hdr);
9517 nlmsg_free(msg);
9518
9519}
9520
9521void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9522 struct net_device *netdev, u16 reason,
667503dd 9523 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9524{
9525 struct sk_buff *msg;
9526 void *hdr;
9527
58050fce 9528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9529 if (!msg)
9530 return;
9531
9532 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9533 if (!hdr) {
9534 nlmsg_free(msg);
9535 return;
9536 }
9537
9360ffd1
DM		 9538 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9539 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9540 (from_ap && reason &&
9541 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9542 (from_ap &&
9543 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9544 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9545 goto nla_put_failure;
b23aa676 9546
3b7b72ee 9547 genlmsg_end(msg, hdr);
b23aa676 9548
463d0183
JB		 9549 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9550 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9551 return;
9552
9553 nla_put_failure:
9554 genlmsg_cancel(msg, hdr);
9555 nlmsg_free(msg);
9556
9557}
9558
04a773ad
JB		 9559void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9560 struct net_device *netdev, const u8 *bssid,
9561 gfp_t gfp)
9562{
9563 struct sk_buff *msg;
9564 void *hdr;
9565
fd2120ca 9566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9567 if (!msg)
9568 return;
9569
9570 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9571 if (!hdr) {
9572 nlmsg_free(msg);
9573 return;
9574 }
9575
9360ffd1
DM		 9576 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9577 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9578 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9579 goto nla_put_failure;
04a773ad 9580
3b7b72ee 9581 genlmsg_end(msg, hdr);
04a773ad 9582
463d0183
JB		 9583 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9584 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9585 return;
9586
9587 nla_put_failure:
9588 genlmsg_cancel(msg, hdr);
9589 nlmsg_free(msg);
9590}
9591
947add36
JB		 9592void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9593 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9594{
947add36
JB		 9595 struct wireless_dev *wdev = dev->ieee80211_ptr;
9596 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9597 struct sk_buff *msg;
9598 void *hdr;
9599
947add36
JB		 9600 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9601 return;
9602
9603 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9604
c93b5e71
JC		 9605 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9606 if (!msg)
9607 return;
9608
9609 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9610 if (!hdr) {
9611 nlmsg_free(msg);
9612 return;
9613 }
9614
9360ffd1 9615 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9616 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9617 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9618 (ie_len && ie &&
9619 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9620 goto nla_put_failure;
c93b5e71 9621
3b7b72ee 9622 genlmsg_end(msg, hdr);
c93b5e71
JC		 9623
9624 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9625 nl80211_mlme_mcgrp.id, gfp);
9626 return;
9627
9628 nla_put_failure:
9629 genlmsg_cancel(msg, hdr);
9630 nlmsg_free(msg);
9631}
947add36 9632EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9633
a3b8b056
JM		 9634void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9635 struct net_device *netdev, const u8 *addr,
9636 enum nl80211_key_type key_type, int key_id,
e6d6e342 9637 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9638{
9639 struct sk_buff *msg;
9640 void *hdr;
9641
e6d6e342 9642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9643 if (!msg)
9644 return;
9645
9646 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9647 if (!hdr) {
9648 nlmsg_free(msg);
9649 return;
9650 }
9651
9360ffd1
DM		 9652 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9653 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9654 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9655 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9656 (key_id != -1 &&
9657 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9658 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9659 goto nla_put_failure;
a3b8b056 9660
3b7b72ee 9661 genlmsg_end(msg, hdr);
a3b8b056 9662
463d0183
JB		 9663 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9664 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9665 return;
9666
9667 nla_put_failure:
9668 genlmsg_cancel(msg, hdr);
9669 nlmsg_free(msg);
9670}
9671
6bad8766
LR		 9672void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9673 struct ieee80211_channel *channel_before,
9674 struct ieee80211_channel *channel_after)
9675{
9676 struct sk_buff *msg;
9677 void *hdr;
9678 struct nlattr *nl_freq;
9679
fd2120ca 9680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9681 if (!msg)
9682 return;
9683
9684 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9685 if (!hdr) {
9686 nlmsg_free(msg);
9687 return;
9688 }
9689
9690 /*
9691 * Since we are applying the beacon hint to a wiphy we know its
9692 * wiphy_idx is valid
9693 */
9360ffd1
DM		 9694 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9695 goto nla_put_failure;
6bad8766
LR		 9696
9697 /* Before */
9698 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9699 if (!nl_freq)
9700 goto nla_put_failure;
cdc89b97 9701 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 9702 goto nla_put_failure;
9703 nla_nest_end(msg, nl_freq);
9704
9705 /* After */
9706 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9707 if (!nl_freq)
9708 goto nla_put_failure;
cdc89b97 9709 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 9710 goto nla_put_failure;
9711 nla_nest_end(msg, nl_freq);
9712
3b7b72ee 9713 genlmsg_end(msg, hdr);
6bad8766 9714
463d0183
JB		 9715 rcu_read_lock();
9716 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9717 GFP_ATOMIC);
9718 rcu_read_unlock();
6bad8766
LR		 9719
9720 return;
9721
9722nla_put_failure:
9723 genlmsg_cancel(msg, hdr);
9724 nlmsg_free(msg);
9725}
9726
9588bbd5
JM		 9727static void nl80211_send_remain_on_chan_event(
9728 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9729 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9730 struct ieee80211_channel *chan,
9588bbd5
JM		 9731 unsigned int duration, gfp_t gfp)
9732{
9733 struct sk_buff *msg;
9734 void *hdr;
9735
9736 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9737 if (!msg)
9738 return;
9739
9740 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9741 if (!hdr) {
9742 nlmsg_free(msg);
9743 return;
9744 }
9745
9360ffd1 9746 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9747 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9748 wdev->netdev->ifindex)) ||
00f53350 9749 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9750 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9751 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9752 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9753 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9754 goto nla_put_failure;
9588bbd5 9755
9360ffd1
DM		 9756 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9757 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9758 goto nla_put_failure;
9588bbd5 9759
3b7b72ee 9760 genlmsg_end(msg, hdr);
9588bbd5
JM		 9761
9762 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9763 nl80211_mlme_mcgrp.id, gfp);
9764 return;
9765
9766 nla_put_failure:
9767 genlmsg_cancel(msg, hdr);
9768 nlmsg_free(msg);
9769}
9770
947add36
JB		 9771void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9772 struct ieee80211_channel *chan,
9773 unsigned int duration, gfp_t gfp)
9588bbd5 9774{
947add36
JB		 9775 struct wiphy *wiphy = wdev->wiphy;
9776 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9777
9778 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 9779 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9780 rdev, wdev, cookie, chan,
42d97a59 9781 duration, gfp);
9588bbd5 9782}
947add36 9783EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 9784
947add36
JB		 9785void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9786 struct ieee80211_channel *chan,
9787 gfp_t gfp)
9588bbd5 9788{
947add36
JB		 9789 struct wiphy *wiphy = wdev->wiphy;
9790 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9791
9792 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 9793 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9794 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 9795}
947add36 9796EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 9797
947add36
JB		 9798void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9799 struct station_info *sinfo, gfp_t gfp)
98b62183 9800{
947add36
JB		 9801 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9802 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 9803 struct sk_buff *msg;
9804
947add36
JB		 9805 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9806
58050fce 9807 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9808 if (!msg)
9809 return;
9810
66266b3a
JL		 9811 if (nl80211_send_station(msg, 0, 0, 0,
9812 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9813 nlmsg_free(msg);
9814 return;
9815 }
9816
9817 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9818 nl80211_mlme_mcgrp.id, gfp);
9819}
947add36 9820EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 9821
947add36 9822void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 9823{
947add36
JB		 9824 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9825 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 9826 struct sk_buff *msg;
9827 void *hdr;
9828
947add36
JB		 9829 trace_cfg80211_del_sta(dev, mac_addr);
9830
58050fce 9831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9832 if (!msg)
9833 return;
9834
9835 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9836 if (!hdr) {
9837 nlmsg_free(msg);
9838 return;
9839 }
9840
9360ffd1
DM		 9841 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9842 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9843 goto nla_put_failure;
ec15e68b 9844
3b7b72ee 9845 genlmsg_end(msg, hdr);
ec15e68b
JM		 9846
9847 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9848 nl80211_mlme_mcgrp.id, gfp);
9849 return;
9850
9851 nla_put_failure:
9852 genlmsg_cancel(msg, hdr);
9853 nlmsg_free(msg);
9854}
947add36 9855EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 9856
947add36
JB		 9857void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9858 enum nl80211_connect_failed_reason reason,
9859 gfp_t gfp)
ed44a951 9860{
947add36
JB		 9861 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9862 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 9863 struct sk_buff *msg;
9864 void *hdr;
9865
9866 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9867 if (!msg)
9868 return;
9869
9870 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9871 if (!hdr) {
9872 nlmsg_free(msg);
9873 return;
9874 }
9875
9876 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9877 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9878 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9879 goto nla_put_failure;
9880
9881 genlmsg_end(msg, hdr);
9882
9883 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9884 nl80211_mlme_mcgrp.id, gfp);
9885 return;
9886
9887 nla_put_failure:
9888 genlmsg_cancel(msg, hdr);
9889 nlmsg_free(msg);
9890}
947add36 9891EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 9892
b92ab5d8
JB		 9893static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9894 const u8 *addr, gfp_t gfp)
28946da7
JB		 9895{
9896 struct wireless_dev *wdev = dev->ieee80211_ptr;
9897 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9898 struct sk_buff *msg;
9899 void *hdr;
15e47304 9900 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9901
15e47304 9902 if (!nlportid)
28946da7
JB		 9903 return false;
9904
9905 msg = nlmsg_new(100, gfp);
9906 if (!msg)
9907 return true;
9908
b92ab5d8 9909 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9910 if (!hdr) {
9911 nlmsg_free(msg);
9912 return true;
9913 }
9914
9360ffd1
DM		 9915 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9916 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9917 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9918 goto nla_put_failure;
28946da7 9919
9c90a9f6 9920 genlmsg_end(msg, hdr);
15e47304 9921 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9922 return true;
9923
9924 nla_put_failure:
9925 genlmsg_cancel(msg, hdr);
9926 nlmsg_free(msg);
9927 return true;
9928}
9929
947add36
JB		 9930bool cfg80211_rx_spurious_frame(struct net_device *dev,
9931 const u8 *addr, gfp_t gfp)
b92ab5d8 9932{
947add36
JB		 9933 struct wireless_dev *wdev = dev->ieee80211_ptr;
9934 bool ret;
9935
9936 trace_cfg80211_rx_spurious_frame(dev, addr);
9937
9938 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9939 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9940 trace_cfg80211_return_bool(false);
9941 return false;
9942 }
9943 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9944 addr, gfp);
9945 trace_cfg80211_return_bool(ret);
9946 return ret;
b92ab5d8 9947}
947add36 9948EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 9949
947add36
JB		 9950bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9951 const u8 *addr, gfp_t gfp)
b92ab5d8 9952{
947add36
JB		 9953 struct wireless_dev *wdev = dev->ieee80211_ptr;
9954 bool ret;
9955
9956 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9957
9958 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9959 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9960 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9961 trace_cfg80211_return_bool(false);
9962 return false;
9963 }
9964 ret = __nl80211_unexpected_frame(dev,
9965 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9966 addr, gfp);
9967 trace_cfg80211_return_bool(ret);
9968 return ret;
b92ab5d8 9969}
947add36 9970EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 9971
2e161f78 9972int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9973 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9974 int freq, int sig_dbm,
9975 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9976{
71bbc994 9977 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9978 struct sk_buff *msg;
9979 void *hdr;
026331c4
JM		 9980
9981 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9982 if (!msg)
9983 return -ENOMEM;
9984
2e161f78 9985 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9986 if (!hdr) {
9987 nlmsg_free(msg);
9988 return -ENOMEM;
9989 }
9990
9360ffd1 9991 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9992 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9993 netdev->ifindex)) ||
a838490b 9994 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9995 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9996 (sig_dbm &&
9997 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9998 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9999 goto nla_put_failure;
026331c4 10000
3b7b72ee 10001 genlmsg_end(msg, hdr);
026331c4 10002
15e47304 10003 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10004
10005 nla_put_failure:
10006 genlmsg_cancel(msg, hdr);
10007 nlmsg_free(msg);
10008 return -ENOBUFS;
10009}
10010
947add36
JB		 10011void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10012 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10013{
947add36
JB		 10014 struct wiphy *wiphy = wdev->wiphy;
10015 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10016 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10017 struct sk_buff *msg;
10018 void *hdr;
10019
947add36
JB		 10020 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10021
026331c4
JM		 10022 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10023 if (!msg)
10024 return;
10025
2e161f78 10026 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10027 if (!hdr) {
10028 nlmsg_free(msg);
10029 return;
10030 }
10031
9360ffd1 10032 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10033 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10034 netdev->ifindex)) ||
a838490b 10035 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10036 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10037 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10038 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10039 goto nla_put_failure;
026331c4 10040
3b7b72ee 10041 genlmsg_end(msg, hdr);
026331c4
JM		 10042
10043 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10044 return;
10045
10046 nla_put_failure:
10047 genlmsg_cancel(msg, hdr);
10048 nlmsg_free(msg);
10049}
947add36 10050EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10051
947add36
JB		 10052void cfg80211_cqm_rssi_notify(struct net_device *dev,
10053 enum nl80211_cqm_rssi_threshold_event rssi_event,
10054 gfp_t gfp)
d6dc1a38 10055{
947add36
JB		 10056 struct wireless_dev *wdev = dev->ieee80211_ptr;
10057 struct wiphy *wiphy = wdev->wiphy;
10058 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10059 struct sk_buff *msg;
10060 struct nlattr *pinfoattr;
10061 void *hdr;
10062
947add36
JB		 10063 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10064
58050fce 10065 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10066 if (!msg)
10067 return;
10068
10069 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10070 if (!hdr) {
10071 nlmsg_free(msg);
10072 return;
10073 }
10074
9360ffd1 10075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10076 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10077 goto nla_put_failure;
d6dc1a38
JO		 10078
10079 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10080 if (!pinfoattr)
10081 goto nla_put_failure;
10082
9360ffd1
DM		 10083 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10084 rssi_event))
10085 goto nla_put_failure;
d6dc1a38
JO		 10086
10087 nla_nest_end(msg, pinfoattr);
10088
3b7b72ee 10089 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10090
10091 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10092 nl80211_mlme_mcgrp.id, gfp);
10093 return;
10094
10095 nla_put_failure:
10096 genlmsg_cancel(msg, hdr);
10097 nlmsg_free(msg);
10098}
947add36 10099EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10100
947add36
JB		 10101static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10102 struct net_device *netdev, const u8 *bssid,
10103 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10104{
10105 struct sk_buff *msg;
10106 struct nlattr *rekey_attr;
10107 void *hdr;
10108
58050fce 10109 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10110 if (!msg)
10111 return;
10112
10113 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10114 if (!hdr) {
10115 nlmsg_free(msg);
10116 return;
10117 }
10118
9360ffd1
DM		 10119 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10120 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10121 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10122 goto nla_put_failure;
e5497d76
JB		 10123
10124 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10125 if (!rekey_attr)
10126 goto nla_put_failure;
10127
9360ffd1
DM		 10128 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10129 NL80211_REPLAY_CTR_LEN, replay_ctr))
10130 goto nla_put_failure;
e5497d76
JB		 10131
10132 nla_nest_end(msg, rekey_attr);
10133
3b7b72ee 10134 genlmsg_end(msg, hdr);
e5497d76
JB		 10135
10136 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10137 nl80211_mlme_mcgrp.id, gfp);
10138 return;
10139
10140 nla_put_failure:
10141 genlmsg_cancel(msg, hdr);
10142 nlmsg_free(msg);
10143}
10144
947add36
JB		 10145void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10146 const u8 *replay_ctr, gfp_t gfp)
10147{
10148 struct wireless_dev *wdev = dev->ieee80211_ptr;
10149 struct wiphy *wiphy = wdev->wiphy;
10150 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10151
10152 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10153 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10154}
10155EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10156
10157static void
10158nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10159 struct net_device *netdev, int index,
10160 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10161{
10162 struct sk_buff *msg;
10163 struct nlattr *attr;
10164 void *hdr;
10165
58050fce 10166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10167 if (!msg)
10168 return;
10169
10170 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10171 if (!hdr) {
10172 nlmsg_free(msg);
10173 return;
10174 }
10175
9360ffd1
DM		 10176 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10177 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10178 goto nla_put_failure;
c9df56b4
JM		 10179
10180 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10181 if (!attr)
10182 goto nla_put_failure;
10183
9360ffd1
DM		 10184 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10185 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10186 (preauth &&
10187 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10188 goto nla_put_failure;
c9df56b4
JM		 10189
10190 nla_nest_end(msg, attr);
10191
3b7b72ee 10192 genlmsg_end(msg, hdr);
c9df56b4
JM		 10193
10194 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10195 nl80211_mlme_mcgrp.id, gfp);
10196 return;
10197
10198 nla_put_failure:
10199 genlmsg_cancel(msg, hdr);
10200 nlmsg_free(msg);
10201}
10202
947add36
JB		 10203void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10204 const u8 *bssid, bool preauth, gfp_t gfp)
10205{
10206 struct wireless_dev *wdev = dev->ieee80211_ptr;
10207 struct wiphy *wiphy = wdev->wiphy;
10208 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10209
10210 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10211 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10212}
10213EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10214
10215static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10216 struct net_device *netdev,
10217 struct cfg80211_chan_def *chandef,
10218 gfp_t gfp)
5314526b
TP		 10219{
10220 struct sk_buff *msg;
10221 void *hdr;
10222
58050fce 10223 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10224 if (!msg)
10225 return;
10226
10227 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10228 if (!hdr) {
10229 nlmsg_free(msg);
10230 return;
10231 }
10232
683b6d3b
JB		 10233 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10234 goto nla_put_failure;
10235
10236 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10237 goto nla_put_failure;
5314526b
TP		 10238
10239 genlmsg_end(msg, hdr);
10240
10241 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10242 nl80211_mlme_mcgrp.id, gfp);
10243 return;
10244
10245 nla_put_failure:
10246 genlmsg_cancel(msg, hdr);
10247 nlmsg_free(msg);
10248}
10249
947add36
JB		 10250void cfg80211_ch_switch_notify(struct net_device *dev,
10251 struct cfg80211_chan_def *chandef)
84f10708 10252{
947add36
JB		 10253 struct wireless_dev *wdev = dev->ieee80211_ptr;
10254 struct wiphy *wiphy = wdev->wiphy;
10255 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10256
10257 trace_cfg80211_ch_switch_notify(dev, chandef);
10258
10259 wdev_lock(wdev);
10260
10261 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10262 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10263 goto out;
10264
10265 wdev->channel = chandef->chan;
10266 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10267out:
10268 wdev_unlock(wdev);
10269 return;
10270}
10271EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10272
10273void cfg80211_cqm_txe_notify(struct net_device *dev,
10274 const u8 *peer, u32 num_packets,
10275 u32 rate, u32 intvl, gfp_t gfp)
10276{
10277 struct wireless_dev *wdev = dev->ieee80211_ptr;
10278 struct wiphy *wiphy = wdev->wiphy;
10279 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10280 struct sk_buff *msg;
10281 struct nlattr *pinfoattr;
10282 void *hdr;
10283
10284 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10285 if (!msg)
10286 return;
10287
10288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10289 if (!hdr) {
10290 nlmsg_free(msg);
10291 return;
10292 }
10293
10294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10295 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10296 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10297 goto nla_put_failure;
10298
10299 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10300 if (!pinfoattr)
10301 goto nla_put_failure;
10302
10303 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10304 goto nla_put_failure;
10305
10306 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10307 goto nla_put_failure;
10308
10309 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10310 goto nla_put_failure;
10311
10312 nla_nest_end(msg, pinfoattr);
10313
10314 genlmsg_end(msg, hdr);
10315
10316 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10317 nl80211_mlme_mcgrp.id, gfp);
10318 return;
10319
10320 nla_put_failure:
10321 genlmsg_cancel(msg, hdr);
10322 nlmsg_free(msg);
10323}
947add36 10324EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10325
04f39047
SW		 10326void
10327nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10328 struct cfg80211_chan_def *chandef,
10329 enum nl80211_radar_event event,
10330 struct net_device *netdev, gfp_t gfp)
10331{
10332 struct sk_buff *msg;
10333 void *hdr;
10334
10335 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10336 if (!msg)
10337 return;
10338
10339 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10340 if (!hdr) {
10341 nlmsg_free(msg);
10342 return;
10343 }
10344
10345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10346 goto nla_put_failure;
10347
10348 /* NOP and radar events don't need a netdev parameter */
10349 if (netdev) {
10350 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10351
10352 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10353 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10354 goto nla_put_failure;
10355 }
10356
10357 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10358 goto nla_put_failure;
10359
10360 if (nl80211_send_chandef(msg, chandef))
10361 goto nla_put_failure;
10362
9c90a9f6 10363 genlmsg_end(msg, hdr);
04f39047
SW		 10364
10365 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10366 nl80211_mlme_mcgrp.id, gfp);
10367 return;
10368
10369 nla_put_failure:
10370 genlmsg_cancel(msg, hdr);
10371 nlmsg_free(msg);
10372}
10373
947add36
JB		 10374void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10375 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10376{
947add36
JB		 10377 struct wireless_dev *wdev = dev->ieee80211_ptr;
10378 struct wiphy *wiphy = wdev->wiphy;
10379 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10380 struct sk_buff *msg;
10381 struct nlattr *pinfoattr;
10382 void *hdr;
10383
947add36
JB		 10384 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10385
58050fce 10386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10387 if (!msg)
10388 return;
10389
10390 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10391 if (!hdr) {
10392 nlmsg_free(msg);
10393 return;
10394 }
10395
9360ffd1 10396 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10397 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10398 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10399 goto nla_put_failure;
c063dbf5
JB		 10400
10401 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10402 if (!pinfoattr)
10403 goto nla_put_failure;
10404
9360ffd1
DM		 10405 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10406 goto nla_put_failure;
c063dbf5
JB		 10407
10408 nla_nest_end(msg, pinfoattr);
10409
3b7b72ee 10410 genlmsg_end(msg, hdr);
c063dbf5
JB		 10411
10412 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10413 nl80211_mlme_mcgrp.id, gfp);
10414 return;
10415
10416 nla_put_failure:
10417 genlmsg_cancel(msg, hdr);
10418 nlmsg_free(msg);
10419}
947add36 10420EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10421
7f6cf311
JB		 10422void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10423 u64 cookie, bool acked, gfp_t gfp)
10424{
10425 struct wireless_dev *wdev = dev->ieee80211_ptr;
10426 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10427 struct sk_buff *msg;
10428 void *hdr;
7f6cf311 10429
4ee3e063
BL		 10430 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10431
58050fce 10432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10433
7f6cf311
JB		 10434 if (!msg)
10435 return;
10436
10437 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10438 if (!hdr) {
10439 nlmsg_free(msg);
10440 return;
10441 }
10442
9360ffd1
DM		 10443 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10444 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10445 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10446 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10447 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10448 goto nla_put_failure;
7f6cf311 10449
9c90a9f6 10450 genlmsg_end(msg, hdr);
7f6cf311
JB		 10451
10452 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10453 nl80211_mlme_mcgrp.id, gfp);
10454 return;
10455
10456 nla_put_failure:
10457 genlmsg_cancel(msg, hdr);
10458 nlmsg_free(msg);
10459}
10460EXPORT_SYMBOL(cfg80211_probe_status);
10461
5e760230
JB		 10462void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10463 const u8 *frame, size_t len,
37c73b5f 10464 int freq, int sig_dbm)
5e760230
JB		 10465{
10466 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10467 struct sk_buff *msg;
10468 void *hdr;
37c73b5f 10469 struct cfg80211_beacon_registration *reg;
5e760230 10470
4ee3e063
BL		 10471 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10472
37c73b5f
BG		 10473 spin_lock_bh(&rdev->beacon_registrations_lock);
10474 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10475 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10476 if (!msg) {
10477 spin_unlock_bh(&rdev->beacon_registrations_lock);
10478 return;
10479 }
5e760230 10480
37c73b5f
BG		 10481 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10482 if (!hdr)
10483 goto nla_put_failure;
5e760230 10484
37c73b5f
BG		 10485 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10486 (freq &&
10487 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10488 (sig_dbm &&
10489 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10490 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10491 goto nla_put_failure;
5e760230 10492
37c73b5f 10493 genlmsg_end(msg, hdr);
5e760230 10494
37c73b5f
BG		 10495 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10496 }
10497 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10498 return;
10499
10500 nla_put_failure:
37c73b5f
BG		 10501 spin_unlock_bh(&rdev->beacon_registrations_lock);
10502 if (hdr)
10503 genlmsg_cancel(msg, hdr);
5e760230
JB		 10504 nlmsg_free(msg);
10505}
10506EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10507
cd8f7cb4
JB		 10508#ifdef CONFIG_PM
10509void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10510 struct cfg80211_wowlan_wakeup *wakeup,
10511 gfp_t gfp)
10512{
10513 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10514 struct sk_buff *msg;
10515 void *hdr;
9c90a9f6 10516 int size = 200;
cd8f7cb4
JB		 10517
10518 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10519
10520 if (wakeup)
10521 size += wakeup->packet_present_len;
10522
10523 msg = nlmsg_new(size, gfp);
10524 if (!msg)
10525 return;
10526
10527 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10528 if (!hdr)
10529 goto free_msg;
10530
10531 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10532 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10533 goto free_msg;
10534
10535 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10536 wdev->netdev->ifindex))
10537 goto free_msg;
10538
10539 if (wakeup) {
10540 struct nlattr *reasons;
10541
10542 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10543
10544 if (wakeup->disconnect &&
10545 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10546 goto free_msg;
10547 if (wakeup->magic_pkt &&
10548 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10549 goto free_msg;
10550 if (wakeup->gtk_rekey_failure &&
10551 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10552 goto free_msg;
10553 if (wakeup->eap_identity_req &&
10554 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10555 goto free_msg;
10556 if (wakeup->four_way_handshake &&
10557 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10558 goto free_msg;
10559 if (wakeup->rfkill_release &&
10560 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10561 goto free_msg;
10562
10563 if (wakeup->pattern_idx >= 0 &&
10564 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10565 wakeup->pattern_idx))
10566 goto free_msg;
10567
2a0e047e
JB		 10568 if (wakeup->tcp_match)
10569 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10570
10571 if (wakeup->tcp_connlost)
10572 nla_put_flag(msg,
10573 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10574
10575 if (wakeup->tcp_nomoretokens)
10576 nla_put_flag(msg,
10577 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10578
cd8f7cb4
JB		 10579 if (wakeup->packet) {
10580 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10581 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10582
10583 if (!wakeup->packet_80211) {
10584 pkt_attr =
10585 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10586 len_attr =
10587 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10588 }
10589
10590 if (wakeup->packet_len &&
10591 nla_put_u32(msg, len_attr, wakeup->packet_len))
10592 goto free_msg;
10593
10594 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10595 wakeup->packet))
10596 goto free_msg;
10597 }
10598
10599 nla_nest_end(msg, reasons);
10600 }
10601
9c90a9f6 10602 genlmsg_end(msg, hdr);
cd8f7cb4
JB		 10603
10604 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10605 nl80211_mlme_mcgrp.id, gfp);
10606 return;
10607
10608 free_msg:
10609 nlmsg_free(msg);
10610}
10611EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10612#endif
10613
3475b094
JM		 10614void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10615 enum nl80211_tdls_operation oper,
10616 u16 reason_code, gfp_t gfp)
10617{
10618 struct wireless_dev *wdev = dev->ieee80211_ptr;
10619 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10620 struct sk_buff *msg;
10621 void *hdr;
3475b094
JM		 10622
10623 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10624 reason_code);
10625
10626 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10627 if (!msg)
10628 return;
10629
10630 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10631 if (!hdr) {
10632 nlmsg_free(msg);
10633 return;
10634 }
10635
10636 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10637 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10638 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10639 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10640 (reason_code > 0 &&
10641 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10642 goto nla_put_failure;
10643
9c90a9f6 10644 genlmsg_end(msg, hdr);
3475b094
JM		 10645
10646 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10647 nl80211_mlme_mcgrp.id, gfp);
10648 return;
10649
10650 nla_put_failure:
10651 genlmsg_cancel(msg, hdr);
10652 nlmsg_free(msg);
10653}
10654EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10655
026331c4
JM		 10656static int nl80211_netlink_notify(struct notifier_block * nb,
10657 unsigned long state,
10658 void *_notify)
10659{
10660 struct netlink_notify *notify = _notify;
10661 struct cfg80211_registered_device *rdev;
10662 struct wireless_dev *wdev;
37c73b5f 10663 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10664
10665 if (state != NETLINK_URELEASE)
10666 return NOTIFY_DONE;
10667
10668 rcu_read_lock();
10669
5e760230 10670 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10671 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10672 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10673
10674 spin_lock_bh(&rdev->beacon_registrations_lock);
10675 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10676 list) {
10677 if (reg->nlportid == notify->portid) {
10678 list_del(&reg->list);
10679 kfree(reg);
10680 break;
10681 }
10682 }
10683 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10684 }
026331c4
JM		 10685
10686 rcu_read_unlock();
10687
10688 return NOTIFY_DONE;
10689}
10690
10691static struct notifier_block nl80211_netlink_notifier = {
10692 .notifier_call = nl80211_netlink_notify,
10693};
10694
355199e0
JM		 10695void cfg80211_ft_event(struct net_device *netdev,
10696 struct cfg80211_ft_event_params *ft_event)
10697{
10698 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10699 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10700 struct sk_buff *msg;
10701 void *hdr;
355199e0
JM		 10702
10703 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10704
10705 if (!ft_event->target_ap)
10706 return;
10707
10708 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10709 if (!msg)
10710 return;
10711
10712 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10713 if (!hdr) {
10714 nlmsg_free(msg);
10715 return;
10716 }
10717
10718 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10719 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10720 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10721 if (ft_event->ies)
10722 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10723 if (ft_event->ric_ies)
10724 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10725 ft_event->ric_ies);
10726
9c90a9f6 10727 genlmsg_end(msg, hdr);
355199e0
JM		 10728
10729 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10730 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10731}
10732EXPORT_SYMBOL(cfg80211_ft_event);
10733
5de17984
AS		 10734void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10735{
10736 struct cfg80211_registered_device *rdev;
10737 struct sk_buff *msg;
10738 void *hdr;
10739 u32 nlportid;
10740
10741 rdev = wiphy_to_dev(wdev->wiphy);
10742 if (!rdev->crit_proto_nlportid)
10743 return;
10744
10745 nlportid = rdev->crit_proto_nlportid;
10746 rdev->crit_proto_nlportid = 0;
10747
10748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10749 if (!msg)
10750 return;
10751
10752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10753 if (!hdr)
10754 goto nla_put_failure;
10755
10756 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10757 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10758 goto nla_put_failure;
10759
10760 genlmsg_end(msg, hdr);
10761
10762 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10763 return;
10764
10765 nla_put_failure:
10766 if (hdr)
10767 genlmsg_cancel(msg, hdr);
10768 nlmsg_free(msg);
10769
10770}
10771EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10772
55682965
JB		 10773/* initialisation/exit functions */
10774
10775int nl80211_init(void)
10776{
0d63cbb5 10777 int err;
55682965 10778
0d63cbb5
MM		 10779 err = genl_register_family_with_ops(&nl80211_fam,
10780 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10781 if (err)
10782 return err;
10783
55682965
JB		 10784 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10785 if (err)
10786 goto err_out;
10787
2a519311
JB		 10788 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10789 if (err)
10790 goto err_out;
10791
73d54c9e
LR		 10792 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10793 if (err)
10794 goto err_out;
10795
6039f6d2
JM		 10796 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10797 if (err)
10798 goto err_out;
10799
aff89a9b
JB		 10800#ifdef CONFIG_NL80211_TESTMODE
10801 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10802 if (err)
10803 goto err_out;
10804#endif
10805
026331c4
JM		 10806 err = netlink_register_notifier(&nl80211_netlink_notifier);
10807 if (err)
10808 goto err_out;
10809
55682965
JB		 10810 return 0;
10811 err_out:
10812 genl_unregister_family(&nl80211_fam);
10813 return err;
10814}
10815
10816void nl80211_exit(void)
10817{
026331c4 10818 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10819 genl_unregister_family(&nl80211_fam);
10820}
Ubuntu Artful kernel mirror